2005-04-17 06:20:36 +08:00
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/*
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2007-03-29 12:58:43 +08:00
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* thinkpad_acpi.c - ThinkPad ACPI Extras
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2005-04-17 06:20:36 +08:00
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*
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*
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2005-08-17 12:00:00 +08:00
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* Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
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2009-04-04 12:25:42 +08:00
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* Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
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2005-04-17 06:20:36 +08:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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2007-03-24 04:33:58 +08:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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2005-08-17 12:00:00 +08:00
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*/
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2009-04-14 10:44:14 +08:00
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#define TPACPI_VERSION "0.23"
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2009-04-04 12:25:48 +08:00
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#define TPACPI_SYSFS_VERSION 0x020300
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2005-08-17 12:00:00 +08:00
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/*
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2005-04-17 06:20:36 +08:00
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* Changelog:
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2008-01-08 23:02:46 +08:00
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* 2007-10-20 changelog trimmed down
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*
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2007-03-29 12:58:43 +08:00
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* 2007-03-27 0.14 renamed to thinkpad_acpi and moved to
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* drivers/misc.
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2006-11-26 02:37:38 +08:00
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*
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* 2006-11-22 0.13 new maintainer
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* changelog now lives in git commit history, and will
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* not be updated further in-file.
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2007-03-24 04:33:54 +08:00
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*
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2005-08-17 12:00:00 +08:00
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* 2005-03-17 0.11 support for 600e, 770x
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* thanks to Jamie Lentin <lentinj@dial.pipex.com>
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2008-01-08 23:02:46 +08:00
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*
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* 2005-01-16 0.9 use MODULE_VERSION
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2005-08-17 12:00:00 +08:00
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* thanks to Henrik Brix Andersen <brix@gentoo.org>
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* fix parameter passing on module loading
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* thanks to Rusty Russell <rusty@rustcorp.com.au>
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* thanks to Jim Radford <radford@blackbean.org>
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* 2004-11-08 0.8 fix init error case, don't return from a macro
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* thanks to Chris Wright <chrisw@osdl.org>
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2005-04-17 06:20:36 +08:00
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*/
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2008-01-08 23:02:43 +08:00
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/list.h>
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#include <linux/mutex.h>
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2009-04-04 12:25:47 +08:00
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#include <linux/sched.h>
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2008-01-08 23:02:43 +08:00
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#include <linux/kthread.h>
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#include <linux/freezer.h>
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#include <linux/delay.h>
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#include <linux/nvram.h>
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#include <linux/proc_fs.h>
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#include <linux/sysfs.h>
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#include <linux/backlight.h>
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#include <linux/fb.h>
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#include <linux/platform_device.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/input.h>
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2008-04-26 12:02:23 +08:00
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#include <linux/leds.h>
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2008-07-21 20:15:51 +08:00
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#include <linux/rfkill.h>
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2008-01-08 23:02:43 +08:00
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#include <asm/uaccess.h>
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#include <linux/dmi.h>
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#include <linux/jiffies.h>
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#include <linux/workqueue.h>
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#include <acpi/acpi_drivers.h>
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#include <linux/pci_ids.h>
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/* ThinkPad CMOS commands */
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#define TP_CMOS_VOLUME_DOWN 0
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#define TP_CMOS_VOLUME_UP 1
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#define TP_CMOS_VOLUME_MUTE 2
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#define TP_CMOS_BRIGHTNESS_UP 4
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#define TP_CMOS_BRIGHTNESS_DOWN 5
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2008-04-26 12:02:23 +08:00
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#define TP_CMOS_THINKLIGHT_ON 12
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#define TP_CMOS_THINKLIGHT_OFF 13
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2008-01-08 23:02:43 +08:00
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/* NVRAM Addresses */
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enum tp_nvram_addr {
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TP_NVRAM_ADDR_HK2 = 0x57,
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TP_NVRAM_ADDR_THINKLIGHT = 0x58,
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TP_NVRAM_ADDR_VIDEO = 0x59,
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TP_NVRAM_ADDR_BRIGHTNESS = 0x5e,
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TP_NVRAM_ADDR_MIXER = 0x60,
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};
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/* NVRAM bit masks */
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enum {
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TP_NVRAM_MASK_HKT_THINKPAD = 0x08,
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TP_NVRAM_MASK_HKT_ZOOM = 0x20,
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TP_NVRAM_MASK_HKT_DISPLAY = 0x40,
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TP_NVRAM_MASK_HKT_HIBERNATE = 0x80,
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TP_NVRAM_MASK_THINKLIGHT = 0x10,
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TP_NVRAM_MASK_HKT_DISPEXPND = 0x30,
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TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20,
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TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f,
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TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0,
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TP_NVRAM_MASK_MUTE = 0x40,
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TP_NVRAM_MASK_HKT_VOLUME = 0x80,
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TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f,
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TP_NVRAM_POS_LEVEL_VOLUME = 0,
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};
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2008-01-08 23:02:45 +08:00
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/* ACPI HIDs */
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2008-01-08 23:02:48 +08:00
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#define TPACPI_ACPI_HKEY_HID "IBM0068"
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2008-01-08 23:02:45 +08:00
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/* Input IDs */
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#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */
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#define TPACPI_HKEY_INPUT_VERSION 0x4101
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2009-01-11 13:01:01 +08:00
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/* ACPI \WGSV commands */
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enum {
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TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */
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TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */
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TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */
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TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */
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};
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/* TP_ACPI_WGSV_GET_STATE bits */
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enum {
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TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */
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TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */
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TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */
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TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */
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TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */
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TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */
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TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */
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TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */
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TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */
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TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */
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};
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2008-01-08 23:02:45 +08:00
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/****************************************************************************
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* Main driver
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*/
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2008-01-08 23:02:48 +08:00
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#define TPACPI_NAME "thinkpad"
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#define TPACPI_DESC "ThinkPad ACPI Extras"
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#define TPACPI_FILE TPACPI_NAME "_acpi"
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#define TPACPI_URL "http://ibm-acpi.sf.net/"
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#define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net"
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2008-01-08 23:02:45 +08:00
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2008-01-08 23:02:48 +08:00
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#define TPACPI_PROC_DIR "ibm"
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#define TPACPI_ACPI_EVENT_PREFIX "ibm"
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#define TPACPI_DRVR_NAME TPACPI_FILE
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2008-04-26 12:02:22 +08:00
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#define TPACPI_DRVR_SHORTNAME "tpacpi"
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2008-01-08 23:02:48 +08:00
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#define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon"
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2008-01-08 23:02:45 +08:00
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2008-04-26 12:02:22 +08:00
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#define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd"
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2008-04-26 12:02:28 +08:00
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#define TPACPI_WORKQUEUE_NAME "ktpacpid"
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2008-04-26 12:02:22 +08:00
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2008-01-08 23:02:48 +08:00
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#define TPACPI_MAX_ACPI_ARGS 3
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2008-01-08 23:02:45 +08:00
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2008-07-21 20:15:51 +08:00
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/* rfkill switches */
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enum {
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TPACPI_RFK_BLUETOOTH_SW_ID = 0,
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TPACPI_RFK_WWAN_SW_ID,
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2009-01-11 13:01:03 +08:00
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TPACPI_RFK_UWB_SW_ID,
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2008-07-21 20:15:51 +08:00
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};
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2009-04-04 12:25:46 +08:00
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/* printk headers */
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2008-01-08 23:02:48 +08:00
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#define TPACPI_LOG TPACPI_FILE ": "
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2009-04-04 12:25:46 +08:00
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#define TPACPI_EMERG KERN_EMERG TPACPI_LOG
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#define TPACPI_ALERT KERN_ALERT TPACPI_LOG
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#define TPACPI_CRIT KERN_CRIT TPACPI_LOG
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#define TPACPI_ERR KERN_ERR TPACPI_LOG
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#define TPACPI_WARN KERN_WARNING TPACPI_LOG
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#define TPACPI_NOTICE KERN_NOTICE TPACPI_LOG
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#define TPACPI_INFO KERN_INFO TPACPI_LOG
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#define TPACPI_DEBUG KERN_DEBUG TPACPI_LOG
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/* Debugging printk groups */
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2008-01-08 23:02:43 +08:00
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#define TPACPI_DBG_ALL 0xffff
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2009-04-04 12:25:47 +08:00
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#define TPACPI_DBG_DISCLOSETASK 0x8000
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2008-01-08 23:02:43 +08:00
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#define TPACPI_DBG_INIT 0x0001
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#define TPACPI_DBG_EXIT 0x0002
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2009-04-04 12:25:50 +08:00
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#define TPACPI_DBG_RFKILL 0x0004
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2009-04-04 12:25:51 +08:00
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#define TPACPI_DBG_HKEY 0x0008
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2009-04-04 12:25:52 +08:00
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#define TPACPI_DBG_FAN 0x0010
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2009-04-04 12:25:53 +08:00
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#define TPACPI_DBG_BRGHT 0x0020
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2008-01-08 23:02:43 +08:00
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2008-01-08 23:02:49 +08:00
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#define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off")
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#define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
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#define strlencmp(a, b) (strncmp((a), (b), strlen(b)))
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2008-01-08 23:02:43 +08:00
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/****************************************************************************
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2008-01-08 23:02:45 +08:00
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* Driver-wide structs and misc. variables
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2008-01-08 23:02:43 +08:00
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*/
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struct ibm_struct;
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struct tp_acpi_drv_struct {
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const struct acpi_device_id *hid;
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struct acpi_driver *driver;
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void (*notify) (struct ibm_struct *, u32);
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acpi_handle *handle;
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u32 type;
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struct acpi_device *device;
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};
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struct ibm_struct {
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char *name;
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int (*read) (char *);
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int (*write) (char *);
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void (*exit) (void);
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void (*resume) (void);
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2008-01-08 23:02:50 +08:00
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void (*suspend) (pm_message_t state);
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2009-01-11 13:01:02 +08:00
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void (*shutdown) (void);
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2008-01-08 23:02:43 +08:00
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struct list_head all_drivers;
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struct tp_acpi_drv_struct *acpi;
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struct {
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u8 acpi_driver_registered:1;
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u8 acpi_notify_installed:1;
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u8 proc_created:1;
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u8 init_called:1;
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u8 experimental:1;
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} flags;
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};
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struct ibm_init_struct {
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char param[32];
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int (*init) (struct ibm_init_struct *);
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struct ibm_struct *data;
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};
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static struct {
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#ifdef CONFIG_THINKPAD_ACPI_BAY
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u32 bay_status:1;
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u32 bay_eject:1;
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u32 bay_status2:1;
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u32 bay_eject2:1;
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#endif
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u32 bluetooth:1;
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u32 hotkey:1;
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u32 hotkey_mask:1;
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u32 hotkey_wlsw:1;
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2008-02-16 12:17:58 +08:00
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u32 hotkey_tablet:1;
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2008-01-08 23:02:43 +08:00
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u32 light:1;
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u32 light_status:1;
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u32 bright_16levels:1;
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2008-04-26 12:02:17 +08:00
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u32 bright_acpimode:1;
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2008-01-08 23:02:43 +08:00
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u32 wan:1;
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2009-01-11 13:01:03 +08:00
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u32 uwb:1;
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2008-01-08 23:02:43 +08:00
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u32 fan_ctrl_status_undef:1;
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u32 input_device_registered:1;
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u32 platform_drv_registered:1;
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u32 platform_drv_attrs_registered:1;
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u32 sensors_pdrv_registered:1;
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u32 sensors_pdrv_attrs_registered:1;
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u32 sensors_pdev_attrs_registered:1;
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u32 hotkey_poll_active:1;
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} tp_features;
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ACPI: thinkpad-acpi: warn once about weird hotkey masks
thinkpad-acpi knows for a while now how to best program the hotkeys by
default, and always enable them by default. Unfortunately, this
information has not filtered down everywhere it needs to, yet. Notably,
old ibm-acpi documentation and most "thinkpad setup guides" will have wrong
information on this area.
Warn the local admin once whenever any of the following patterns are met:
1. Attempts to set hotkey mask to 0xffff (artifact from docs and config
for the old ibm-acpi driver and behaviour). This mask makes no
real-world sense;
2. Attempts to set hotkey mask to 0xffffffff, which means the user is
trying to just have "everything work" without even reading the
documentation, or that we need to get a bug report, because there
is a new thinkpad out there with new exciting hot keys :-)
3. Attempts to set hotkey mask to 0xffffff, which is almost never the
correct way to set up volume and brightness event reporting (and with
the current state-of-the-art, it is known to never be right way to do
it).
The driver will perform any and all requested operations, though,
regardless of any warnings. I hope these warnings can be removed one or
two years from now.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-26 12:02:18 +08:00
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static struct {
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u16 hotkey_mask_ff:1;
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} tp_warned;
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2008-01-08 23:02:43 +08:00
|
|
|
struct thinkpad_id_data {
|
|
|
|
unsigned int vendor; /* ThinkPad vendor:
|
|
|
|
* PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */
|
|
|
|
|
|
|
|
char *bios_version_str; /* Something like 1ZET51WW (1.03z) */
|
|
|
|
char *ec_version_str; /* Something like 1ZHT51WW-1.04a */
|
|
|
|
|
thinkpad-acpi: store fw version with strict checking
Extend the thinkpad model and firmware identification data with the
release serial number for the BIOS and firmware (when available), as
that is easier to parse and compare than the version strings.
We're going to greatly extend the use of the ThinkPad DMI data through
quirk lists, so it is best to be quite strict and make sure what we
get from DMI is exactly what we expect, otherwise quirk matching may
result in quite insane things.
IBM (and Lenovo, at least for the ThinkPad line) uses this schema for
firmware versioning and model:
Firmware model: Two digits, [0-9A-Z]
Firmware version: AABBCCDD, where
AA = firmware model, see above
BB = "ET" for BIOS, "HT" for EC
CC = release version, two digits, [0-9A-Z],
"00" < "09" < "0A" < "10" < "A0" < "ZZ"
DD = "WW"
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-31 00:25:05 +08:00
|
|
|
u16 bios_model; /* 1Y = 0x5931, 0 = unknown */
|
2008-01-08 23:02:43 +08:00
|
|
|
u16 ec_model;
|
thinkpad-acpi: store fw version with strict checking
Extend the thinkpad model and firmware identification data with the
release serial number for the BIOS and firmware (when available), as
that is easier to parse and compare than the version strings.
We're going to greatly extend the use of the ThinkPad DMI data through
quirk lists, so it is best to be quite strict and make sure what we
get from DMI is exactly what we expect, otherwise quirk matching may
result in quite insane things.
IBM (and Lenovo, at least for the ThinkPad line) uses this schema for
firmware versioning and model:
Firmware model: Two digits, [0-9A-Z]
Firmware version: AABBCCDD, where
AA = firmware model, see above
BB = "ET" for BIOS, "HT" for EC
CC = release version, two digits, [0-9A-Z],
"00" < "09" < "0A" < "10" < "A0" < "ZZ"
DD = "WW"
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-31 00:25:05 +08:00
|
|
|
u16 bios_release; /* 1ZETK1WW = 0x314b, 0 = unknown */
|
|
|
|
u16 ec_release;
|
2008-01-08 23:02:43 +08:00
|
|
|
|
2008-04-26 12:02:19 +08:00
|
|
|
char *model_str; /* ThinkPad T43 */
|
|
|
|
char *nummodel_str; /* 9384A9C for a 9384-A9C model */
|
2008-01-08 23:02:43 +08:00
|
|
|
};
|
|
|
|
static struct thinkpad_id_data thinkpad_id;
|
|
|
|
|
2007-09-23 22:39:02 +08:00
|
|
|
static enum {
|
|
|
|
TPACPI_LIFE_INIT = 0,
|
|
|
|
TPACPI_LIFE_RUNNING,
|
|
|
|
TPACPI_LIFE_EXITING,
|
|
|
|
} tpacpi_lifecycle;
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int experimental;
|
|
|
|
static u32 dbg_level;
|
|
|
|
|
2008-04-26 12:02:28 +08:00
|
|
|
static struct workqueue_struct *tpacpi_wq;
|
|
|
|
|
2009-04-14 10:44:11 +08:00
|
|
|
enum led_status_t {
|
|
|
|
TPACPI_LED_OFF = 0,
|
|
|
|
TPACPI_LED_ON,
|
|
|
|
TPACPI_LED_BLINK,
|
|
|
|
};
|
|
|
|
|
2008-04-26 12:02:23 +08:00
|
|
|
/* Special LED class that can defer work */
|
|
|
|
struct tpacpi_led_classdev {
|
|
|
|
struct led_classdev led_classdev;
|
|
|
|
struct work_struct work;
|
2009-04-14 10:44:11 +08:00
|
|
|
enum led_status_t new_state;
|
2008-04-26 12:02:25 +08:00
|
|
|
unsigned int led;
|
2008-04-26 12:02:23 +08:00
|
|
|
};
|
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
static int dbg_wlswemul;
|
|
|
|
static int tpacpi_wlsw_emulstate;
|
|
|
|
static int dbg_bluetoothemul;
|
|
|
|
static int tpacpi_bluetooth_emulstate;
|
|
|
|
static int dbg_wwanemul;
|
|
|
|
static int tpacpi_wwan_emulstate;
|
2009-01-11 13:01:03 +08:00
|
|
|
static int dbg_uwbemul;
|
|
|
|
static int tpacpi_uwb_emulstate;
|
2009-01-11 13:01:00 +08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
|
2009-04-04 12:25:45 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Debugging helpers
|
|
|
|
*/
|
|
|
|
|
|
|
|
#define dbg_printk(a_dbg_level, format, arg...) \
|
|
|
|
do { if (dbg_level & (a_dbg_level)) \
|
|
|
|
printk(TPACPI_DEBUG "%s: " format, __func__ , ## arg); \
|
|
|
|
} while (0)
|
|
|
|
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUG
|
|
|
|
#define vdbg_printk dbg_printk
|
|
|
|
static const char *str_supported(int is_supported);
|
|
|
|
#else
|
|
|
|
#define vdbg_printk(a_dbg_level, format, arg...) \
|
|
|
|
do { } while (0)
|
|
|
|
#endif
|
|
|
|
|
2009-04-04 12:25:47 +08:00
|
|
|
static void tpacpi_log_usertask(const char * const what)
|
|
|
|
{
|
|
|
|
printk(TPACPI_DEBUG "%s: access by process with PID %d\n",
|
|
|
|
what, task_tgid_vnr(current));
|
|
|
|
}
|
|
|
|
|
|
|
|
#define tpacpi_disclose_usertask(what, format, arg...) \
|
|
|
|
do { \
|
|
|
|
if (unlikely( \
|
|
|
|
(dbg_level & TPACPI_DBG_DISCLOSETASK) && \
|
|
|
|
(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \
|
|
|
|
printk(TPACPI_DEBUG "%s: PID %d: " format, \
|
|
|
|
what, task_tgid_vnr(current), ## arg); \
|
|
|
|
} \
|
|
|
|
} while (0)
|
2009-04-04 12:25:45 +08:00
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/****************************************************************************
|
|
|
|
****************************************************************************
|
|
|
|
*
|
|
|
|
* ACPI Helpers and device model
|
|
|
|
*
|
|
|
|
****************************************************************************
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
* ACPI basic handles
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-07-19 10:45:27 +08:00
|
|
|
static acpi_handle root_handle;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
#define TPACPI_HANDLE(object, parent, paths...) \
|
2005-04-17 06:20:36 +08:00
|
|
|
static acpi_handle object##_handle; \
|
|
|
|
static acpi_handle *object##_parent = &parent##_handle; \
|
2005-08-17 12:00:00 +08:00
|
|
|
static char *object##_path; \
|
2005-04-17 06:20:36 +08:00
|
|
|
static char *object##_paths[] = { paths }
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.EC0", /* 240, 240x */
|
2005-08-17 12:00:00 +08:00
|
|
|
"\\_SB.PCI.ISA.EC", /* 570 */
|
|
|
|
"\\_SB.PCI0.ISA0.EC0", /* 600e/x, 770e, 770x */
|
|
|
|
"\\_SB.PCI0.ISA.EC", /* A21e, A2xm/p, T20-22, X20-21 */
|
|
|
|
"\\_SB.PCI0.AD4S.EC0", /* i1400, R30 */
|
|
|
|
"\\_SB.PCI0.ICH3.EC0", /* R31 */
|
|
|
|
"\\_SB.PCI0.LPC.EC", /* all others */
|
2007-03-24 04:33:57 +08:00
|
|
|
);
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */
|
|
|
|
TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */
|
|
|
|
/* T4x, X31, X40 */
|
2005-08-17 12:00:00 +08:00
|
|
|
"\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */
|
|
|
|
"\\CMS", /* R40, R40e */
|
2007-03-24 04:33:57 +08:00
|
|
|
); /* all others */
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */
|
2005-08-17 12:00:00 +08:00
|
|
|
"^HKEY", /* R30, R31 */
|
|
|
|
"HKEY", /* all others */
|
2007-03-24 04:33:57 +08:00
|
|
|
); /* 570 */
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-02-16 12:17:54 +08:00
|
|
|
TPACPI_HANDLE(vid, root, "\\_SB.PCI.AGP.VGA", /* 570 */
|
|
|
|
"\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */
|
|
|
|
"\\_SB.PCI0.VID0", /* 770e */
|
|
|
|
"\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */
|
|
|
|
"\\_SB.PCI0.AGP.VID", /* all others */
|
|
|
|
); /* R30, R31 */
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* ACPI helpers
|
2006-11-24 21:47:11 +08:00
|
|
|
*/
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
static int acpi_evalf(acpi_handle handle,
|
|
|
|
void *res, char *method, char *fmt, ...)
|
|
|
|
{
|
|
|
|
char *fmt0 = fmt;
|
2005-08-17 12:00:00 +08:00
|
|
|
struct acpi_object_list params;
|
2008-01-08 23:02:48 +08:00
|
|
|
union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS];
|
2005-08-17 12:00:00 +08:00
|
|
|
struct acpi_buffer result, *resultp;
|
|
|
|
union acpi_object out_obj;
|
|
|
|
acpi_status status;
|
|
|
|
va_list ap;
|
|
|
|
char res_type;
|
|
|
|
int success;
|
|
|
|
int quiet;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
if (!*fmt) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "acpi_evalf() called with empty format\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (*fmt == 'q') {
|
|
|
|
quiet = 1;
|
|
|
|
fmt++;
|
|
|
|
} else
|
|
|
|
quiet = 0;
|
|
|
|
|
|
|
|
res_type = *(fmt++);
|
|
|
|
|
|
|
|
params.count = 0;
|
|
|
|
params.pointer = &in_objs[0];
|
|
|
|
|
|
|
|
va_start(ap, fmt);
|
|
|
|
while (*fmt) {
|
|
|
|
char c = *(fmt++);
|
|
|
|
switch (c) {
|
|
|
|
case 'd': /* int */
|
|
|
|
in_objs[params.count].integer.value = va_arg(ap, int);
|
|
|
|
in_objs[params.count++].type = ACPI_TYPE_INTEGER;
|
|
|
|
break;
|
2005-08-17 12:00:00 +08:00
|
|
|
/* add more types as needed */
|
2005-04-17 06:20:36 +08:00
|
|
|
default:
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "acpi_evalf() called "
|
2005-04-17 06:20:36 +08:00
|
|
|
"with invalid format character '%c'\n", c);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
va_end(ap);
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
if (res_type != 'v') {
|
|
|
|
result.length = sizeof(out_obj);
|
|
|
|
result.pointer = &out_obj;
|
|
|
|
resultp = &result;
|
|
|
|
} else
|
|
|
|
resultp = NULL;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
status = acpi_evaluate_object(handle, method, ¶ms, resultp);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
switch (res_type) {
|
2005-08-17 12:00:00 +08:00
|
|
|
case 'd': /* int */
|
2005-04-17 06:20:36 +08:00
|
|
|
if (res)
|
|
|
|
*(int *)res = out_obj.integer.value;
|
|
|
|
success = status == AE_OK && out_obj.type == ACPI_TYPE_INTEGER;
|
|
|
|
break;
|
2005-08-17 12:00:00 +08:00
|
|
|
case 'v': /* void */
|
2005-04-17 06:20:36 +08:00
|
|
|
success = status == AE_OK;
|
|
|
|
break;
|
2005-08-17 12:00:00 +08:00
|
|
|
/* add more types as needed */
|
2005-04-17 06:20:36 +08:00
|
|
|
default:
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "acpi_evalf() called "
|
2005-04-17 06:20:36 +08:00
|
|
|
"with invalid format character '%c'\n", res_type);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
if (!success && !quiet)
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "acpi_evalf(%s, %s, ...) failed: %d\n",
|
2007-03-24 04:33:57 +08:00
|
|
|
method, fmt0, status);
|
|
|
|
|
|
|
|
return success;
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
static int acpi_ec_read(int i, u8 *p)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
|
|
|
int v;
|
|
|
|
|
|
|
|
if (ecrd_handle) {
|
|
|
|
if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i))
|
|
|
|
return 0;
|
|
|
|
*p = v;
|
|
|
|
} else {
|
|
|
|
if (ec_read(i, p) < 0)
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int acpi_ec_write(int i, u8 v)
|
|
|
|
{
|
|
|
|
if (ecwr_handle) {
|
|
|
|
if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v))
|
|
|
|
return 0;
|
|
|
|
} else {
|
|
|
|
if (ec_write(i, v) < 0)
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:54 +08:00
|
|
|
#if defined(CONFIG_THINKPAD_ACPI_DOCK) || defined(CONFIG_THINKPAD_ACPI_BAY)
|
2007-03-24 04:33:57 +08:00
|
|
|
static int _sta(acpi_handle handle)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!handle || !acpi_evalf(handle, &status, "_STA", "d"))
|
|
|
|
status = 0;
|
|
|
|
|
|
|
|
return status;
|
|
|
|
}
|
2008-01-08 23:02:54 +08:00
|
|
|
#endif
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-21 22:08:42 +08:00
|
|
|
static int issue_thinkpad_cmos_command(int cmos_cmd)
|
|
|
|
{
|
|
|
|
if (!cmos_handle)
|
|
|
|
return -ENXIO;
|
|
|
|
|
|
|
|
if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd))
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* ACPI device model
|
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
#define TPACPI_ACPIHANDLE_INIT(object) \
|
|
|
|
drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \
|
2008-01-08 23:02:44 +08:00
|
|
|
object##_paths, ARRAY_SIZE(object##_paths), &object##_path)
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
static void drv_acpi_handle_init(char *name,
|
2007-04-21 22:08:31 +08:00
|
|
|
acpi_handle *handle, acpi_handle parent,
|
|
|
|
char **paths, int num_paths, char **path)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
acpi_status status;
|
|
|
|
|
2007-04-28 09:00:14 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n",
|
|
|
|
name);
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
for (i = 0; i < num_paths; i++) {
|
|
|
|
status = acpi_get_handle(parent, paths[i], handle);
|
|
|
|
if (ACPI_SUCCESS(status)) {
|
|
|
|
*path = paths[i];
|
2007-04-28 09:00:14 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"Found ACPI handle %s for %s\n",
|
|
|
|
*path, name);
|
2007-03-24 04:33:57 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-04-28 09:00:14 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n",
|
|
|
|
name);
|
2007-03-24 04:33:57 +08:00
|
|
|
*handle = NULL;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
|
|
|
struct ibm_struct *ibm = data;
|
|
|
|
|
2007-09-23 22:39:02 +08:00
|
|
|
if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
|
|
|
|
return;
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
if (!ibm || !ibm->acpi || !ibm->acpi->notify)
|
2007-03-24 04:33:57 +08:00
|
|
|
return;
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
ibm->acpi->notify(ibm, event);
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
static int __init setup_acpi_notify(struct ibm_struct *ibm)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
|
|
|
acpi_status status;
|
2007-04-28 09:00:14 +08:00
|
|
|
int rc;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
BUG_ON(!ibm->acpi);
|
|
|
|
|
|
|
|
if (!*ibm->acpi->handle)
|
2007-03-24 04:33:57 +08:00
|
|
|
return 0;
|
|
|
|
|
2007-04-28 09:00:14 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
2007-04-21 22:08:32 +08:00
|
|
|
"setting up ACPI notify for %s\n", ibm->name);
|
|
|
|
|
2007-04-28 09:00:14 +08:00
|
|
|
rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device);
|
|
|
|
if (rc < 0) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "acpi_bus_get_device(%s) failed: %d\n",
|
2007-04-28 09:00:14 +08:00
|
|
|
ibm->name, rc);
|
2007-03-24 04:33:57 +08:00
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
2008-09-23 05:37:34 +08:00
|
|
|
ibm->acpi->device->driver_data = ibm;
|
2007-04-21 22:08:37 +08:00
|
|
|
sprintf(acpi_device_class(ibm->acpi->device), "%s/%s",
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPI_EVENT_PREFIX,
|
2007-03-29 12:58:43 +08:00
|
|
|
ibm->name);
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
status = acpi_install_notify_handler(*ibm->acpi->handle,
|
|
|
|
ibm->acpi->type, dispatch_acpi_notify, ibm);
|
2007-03-24 04:33:57 +08:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
if (status == AE_ALREADY_EXISTS) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"another device driver is already "
|
|
|
|
"handling %s events\n", ibm->name);
|
2007-03-24 04:33:57 +08:00
|
|
|
} else {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"acpi_install_notify_handler(%s) failed: %d\n",
|
|
|
|
ibm->name, status);
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
2007-04-21 22:08:37 +08:00
|
|
|
ibm->flags.acpi_notify_installed = 1;
|
2007-03-24 04:33:57 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
static int __init tpacpi_device_add(struct acpi_device *device)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:25 +08:00
|
|
|
static int __init register_tpacpi_subdriver(struct ibm_struct *ibm)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
2007-04-28 09:00:14 +08:00
|
|
|
int rc;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"registering %s as an ACPI driver\n", ibm->name);
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
BUG_ON(!ibm->acpi);
|
|
|
|
|
|
|
|
ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL);
|
|
|
|
if (!ibm->acpi->driver) {
|
2008-10-19 01:23:53 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"failed to allocate memory for ibm->acpi->driver\n");
|
2007-04-21 22:08:31 +08:00
|
|
|
return -ENOMEM;
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name);
|
2007-04-21 22:08:37 +08:00
|
|
|
ibm->acpi->driver->ids = ibm->acpi->hid;
|
2007-07-23 20:44:41 +08:00
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
ibm->acpi->driver->ops.add = &tpacpi_device_add;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-28 09:00:14 +08:00
|
|
|
rc = acpi_bus_register_driver(ibm->acpi->driver);
|
|
|
|
if (rc < 0) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "acpi_bus_register_driver(%s) failed: %d\n",
|
2007-07-23 20:44:41 +08:00
|
|
|
ibm->name, rc);
|
2007-04-21 22:08:37 +08:00
|
|
|
kfree(ibm->acpi->driver);
|
|
|
|
ibm->acpi->driver = NULL;
|
2007-04-28 09:00:14 +08:00
|
|
|
} else if (!rc)
|
2007-04-21 22:08:37 +08:00
|
|
|
ibm->flags.acpi_driver_registered = 1;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-28 09:00:14 +08:00
|
|
|
return rc;
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
****************************************************************************
|
|
|
|
*
|
|
|
|
* Procfs Helpers
|
|
|
|
*
|
|
|
|
****************************************************************************
|
|
|
|
****************************************************************************/
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
static int dispatch_procfs_read(char *page, char **start, off_t off,
|
|
|
|
int count, int *eof, void *data)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
|
|
|
struct ibm_struct *ibm = data;
|
|
|
|
int len;
|
|
|
|
|
|
|
|
if (!ibm || !ibm->read)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
len = ibm->read(page);
|
|
|
|
if (len < 0)
|
|
|
|
return len;
|
|
|
|
|
|
|
|
if (len <= off + count)
|
|
|
|
*eof = 1;
|
|
|
|
*start = page + off;
|
|
|
|
len -= off;
|
|
|
|
if (len > count)
|
|
|
|
len = count;
|
|
|
|
if (len < 0)
|
|
|
|
len = 0;
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
static int dispatch_procfs_write(struct file *file,
|
2008-01-08 23:02:49 +08:00
|
|
|
const char __user *userbuf,
|
2007-04-21 22:08:37 +08:00
|
|
|
unsigned long count, void *data)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
|
|
|
struct ibm_struct *ibm = data;
|
|
|
|
char *kernbuf;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (!ibm || !ibm->write)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
kernbuf = kmalloc(count + 2, GFP_KERNEL);
|
|
|
|
if (!kernbuf)
|
|
|
|
return -ENOMEM;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
if (copy_from_user(kernbuf, userbuf, count)) {
|
|
|
|
kfree(kernbuf);
|
|
|
|
return -EFAULT;
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
kernbuf[count] = 0;
|
|
|
|
strcat(kernbuf, ",");
|
|
|
|
ret = ibm->write(kernbuf);
|
|
|
|
if (ret == 0)
|
|
|
|
ret = count;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
kfree(kernbuf);
|
|
|
|
|
|
|
|
return ret;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static char *next_cmd(char **cmds)
|
|
|
|
{
|
|
|
|
char *start = *cmds;
|
|
|
|
char *end;
|
|
|
|
|
|
|
|
while ((end = strchr(start, ',')) && end == start)
|
|
|
|
start = end + 1;
|
|
|
|
|
|
|
|
if (!end)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
*end = 0;
|
|
|
|
*cmds = end + 1;
|
|
|
|
return start;
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-24 22:48:12 +08:00
|
|
|
/****************************************************************************
|
|
|
|
****************************************************************************
|
|
|
|
*
|
2007-07-19 10:45:34 +08:00
|
|
|
* Device model: input, hwmon and platform
|
2007-04-24 22:48:12 +08:00
|
|
|
*
|
|
|
|
****************************************************************************
|
|
|
|
****************************************************************************/
|
|
|
|
|
2007-07-19 10:45:27 +08:00
|
|
|
static struct platform_device *tpacpi_pdev;
|
2007-09-25 17:38:03 +08:00
|
|
|
static struct platform_device *tpacpi_sensors_pdev;
|
2007-08-21 04:46:20 +08:00
|
|
|
static struct device *tpacpi_hwmon;
|
2007-07-19 10:45:34 +08:00
|
|
|
static struct input_dev *tpacpi_inputdev;
|
2007-09-23 22:39:01 +08:00
|
|
|
static struct mutex tpacpi_inputdev_send_mutex;
|
2008-01-08 23:02:45 +08:00
|
|
|
static LIST_HEAD(tpacpi_all_drivers);
|
2007-07-19 10:45:37 +08:00
|
|
|
|
2008-01-08 23:02:50 +08:00
|
|
|
static int tpacpi_suspend_handler(struct platform_device *pdev,
|
|
|
|
pm_message_t state)
|
|
|
|
{
|
|
|
|
struct ibm_struct *ibm, *itmp;
|
|
|
|
|
|
|
|
list_for_each_entry_safe(ibm, itmp,
|
|
|
|
&tpacpi_all_drivers,
|
|
|
|
all_drivers) {
|
|
|
|
if (ibm->suspend)
|
|
|
|
(ibm->suspend)(state);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-07-19 10:45:37 +08:00
|
|
|
static int tpacpi_resume_handler(struct platform_device *pdev)
|
|
|
|
{
|
|
|
|
struct ibm_struct *ibm, *itmp;
|
|
|
|
|
|
|
|
list_for_each_entry_safe(ibm, itmp,
|
|
|
|
&tpacpi_all_drivers,
|
|
|
|
all_drivers) {
|
|
|
|
if (ibm->resume)
|
|
|
|
(ibm->resume)();
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-01-11 13:01:02 +08:00
|
|
|
static void tpacpi_shutdown_handler(struct platform_device *pdev)
|
|
|
|
{
|
|
|
|
struct ibm_struct *ibm, *itmp;
|
|
|
|
|
|
|
|
list_for_each_entry_safe(ibm, itmp,
|
|
|
|
&tpacpi_all_drivers,
|
|
|
|
all_drivers) {
|
|
|
|
if (ibm->shutdown)
|
|
|
|
(ibm->shutdown)();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-04-24 22:48:12 +08:00
|
|
|
static struct platform_driver tpacpi_pdriver = {
|
|
|
|
.driver = {
|
2008-01-08 23:02:48 +08:00
|
|
|
.name = TPACPI_DRVR_NAME,
|
2007-04-24 22:48:12 +08:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
},
|
2008-01-08 23:02:50 +08:00
|
|
|
.suspend = tpacpi_suspend_handler,
|
2007-07-19 10:45:37 +08:00
|
|
|
.resume = tpacpi_resume_handler,
|
2009-01-11 13:01:02 +08:00
|
|
|
.shutdown = tpacpi_shutdown_handler,
|
2007-04-24 22:48:12 +08:00
|
|
|
};
|
|
|
|
|
2007-09-25 17:38:03 +08:00
|
|
|
static struct platform_driver tpacpi_hwmon_pdriver = {
|
|
|
|
.driver = {
|
2008-01-08 23:02:48 +08:00
|
|
|
.name = TPACPI_HWMON_DRVR_NAME,
|
2007-09-25 17:38:03 +08:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
},
|
|
|
|
};
|
2007-04-24 22:48:12 +08:00
|
|
|
|
2007-04-24 22:48:13 +08:00
|
|
|
/*************************************************************************
|
2008-01-08 23:02:45 +08:00
|
|
|
* sysfs support helpers
|
2007-04-24 22:48:13 +08:00
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
struct attribute_set {
|
|
|
|
unsigned int members, max_members;
|
|
|
|
struct attribute_group group;
|
2007-04-24 22:48:13 +08:00
|
|
|
};
|
|
|
|
|
2007-04-24 22:48:14 +08:00
|
|
|
struct attribute_set_obj {
|
|
|
|
struct attribute_set s;
|
|
|
|
struct attribute *a;
|
|
|
|
} __attribute__((packed));
|
|
|
|
|
|
|
|
static struct attribute_set *create_attr_set(unsigned int max_members,
|
2008-01-08 23:02:49 +08:00
|
|
|
const char *name)
|
2007-04-24 22:48:14 +08:00
|
|
|
{
|
|
|
|
struct attribute_set_obj *sobj;
|
|
|
|
|
|
|
|
if (max_members == 0)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
/* Allocates space for implicit NULL at the end too */
|
|
|
|
sobj = kzalloc(sizeof(struct attribute_set_obj) +
|
|
|
|
max_members * sizeof(struct attribute *),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!sobj)
|
|
|
|
return NULL;
|
|
|
|
sobj->s.max_members = max_members;
|
|
|
|
sobj->s.group.attrs = &sobj->a;
|
|
|
|
sobj->s.group.name = name;
|
|
|
|
|
|
|
|
return &sobj->s;
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
#define destroy_attr_set(_set) \
|
|
|
|
kfree(_set);
|
|
|
|
|
2007-04-24 22:48:14 +08:00
|
|
|
/* not multi-threaded safe, use it in a single thread per set */
|
2008-01-08 23:02:49 +08:00
|
|
|
static int add_to_attr_set(struct attribute_set *s, struct attribute *attr)
|
2007-04-24 22:48:14 +08:00
|
|
|
{
|
|
|
|
if (!s || !attr)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (s->members >= s->max_members)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
s->group.attrs[s->members] = attr;
|
|
|
|
s->members++;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
static int add_many_to_attr_set(struct attribute_set *s,
|
2007-04-24 22:48:14 +08:00
|
|
|
struct attribute **attr,
|
|
|
|
unsigned int count)
|
|
|
|
{
|
|
|
|
int i, res;
|
|
|
|
|
|
|
|
for (i = 0; i < count; i++) {
|
|
|
|
res = add_to_attr_set(s, attr[i]);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
static void delete_attr_set(struct attribute_set *s, struct kobject *kobj)
|
2007-04-24 22:48:14 +08:00
|
|
|
{
|
|
|
|
sysfs_remove_group(kobj, &s->group);
|
|
|
|
destroy_attr_set(s);
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
#define register_attr_set_with_sysfs(_attr_set, _kobj) \
|
|
|
|
sysfs_create_group(_kobj, &_attr_set->group)
|
|
|
|
|
2007-04-24 22:48:14 +08:00
|
|
|
static int parse_strtoul(const char *buf,
|
|
|
|
unsigned long max, unsigned long *value)
|
|
|
|
{
|
|
|
|
char *endp;
|
|
|
|
|
2007-10-08 21:12:56 +08:00
|
|
|
while (*buf && isspace(*buf))
|
|
|
|
buf++;
|
2007-04-24 22:48:14 +08:00
|
|
|
*value = simple_strtoul(buf, &endp, 0);
|
|
|
|
while (*endp && isspace(*endp))
|
|
|
|
endp++;
|
|
|
|
if (*endp || *value > max)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-10-19 01:23:55 +08:00
|
|
|
static void tpacpi_disable_brightness_delay(void)
|
|
|
|
{
|
|
|
|
if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0))
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"ACPI backlight control delay disabled\n");
|
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:17 +08:00
|
|
|
static int __init tpacpi_query_bcl_levels(acpi_handle handle)
|
|
|
|
{
|
|
|
|
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
|
|
union acpi_object *obj;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) {
|
|
|
|
obj = (union acpi_object *)buffer.pointer;
|
|
|
|
if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
|
|
|
|
printk(TPACPI_ERR "Unknown _BCL data, "
|
|
|
|
"please report this to %s\n", TPACPI_MAIL);
|
|
|
|
rc = 0;
|
|
|
|
} else {
|
|
|
|
rc = obj->package.count;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
kfree(buffer.pointer);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle,
|
|
|
|
u32 lvl, void *context, void **rv)
|
|
|
|
{
|
|
|
|
char name[ACPI_PATH_SEGMENT_LENGTH];
|
|
|
|
struct acpi_buffer buffer = { sizeof(name), &name };
|
|
|
|
|
|
|
|
if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) &&
|
|
|
|
!strncmp("_BCL", name, sizeof(name) - 1)) {
|
|
|
|
BUG_ON(!rv || !*rv);
|
|
|
|
**(int **)rv = tpacpi_query_bcl_levels(handle);
|
|
|
|
return AE_CTRL_TERMINATE;
|
|
|
|
} else {
|
|
|
|
return AE_OK;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map
|
|
|
|
*/
|
|
|
|
static int __init tpacpi_check_std_acpi_brightness_support(void)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
int bcl_levels = 0;
|
|
|
|
void *bcl_ptr = &bcl_levels;
|
|
|
|
|
|
|
|
if (!vid_handle) {
|
|
|
|
TPACPI_ACPIHANDLE_INIT(vid);
|
|
|
|
}
|
|
|
|
if (!vid_handle)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Search for a _BCL method, and execute it. This is safe on all
|
|
|
|
* ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista
|
|
|
|
* BIOS in ACPI backlight control mode. We do NOT have to care
|
|
|
|
* about calling the _BCL method in an enabled video device, any
|
|
|
|
* will do for our purposes.
|
|
|
|
*/
|
|
|
|
|
|
|
|
status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3,
|
|
|
|
tpacpi_acpi_walk_find_bcl, NULL,
|
|
|
|
&bcl_ptr);
|
|
|
|
|
|
|
|
if (ACPI_SUCCESS(status) && bcl_levels > 2) {
|
|
|
|
tp_features.bright_acpimode = 1;
|
|
|
|
return (bcl_levels - 2);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
static int __init tpacpi_new_rfkill(const unsigned int id,
|
|
|
|
struct rfkill **rfk,
|
|
|
|
const enum rfkill_type rfktype,
|
|
|
|
const char *name,
|
2009-01-11 13:01:03 +08:00
|
|
|
const bool set_default,
|
2008-07-21 20:15:51 +08:00
|
|
|
int (*toggle_radio)(void *, enum rfkill_state),
|
|
|
|
int (*get_state)(void *, enum rfkill_state *))
|
|
|
|
{
|
|
|
|
int res;
|
2009-01-11 13:01:02 +08:00
|
|
|
enum rfkill_state initial_state = RFKILL_STATE_SOFT_BLOCKED;
|
|
|
|
|
|
|
|
res = get_state(NULL, &initial_state);
|
|
|
|
if (res < 0) {
|
|
|
|
printk(TPACPI_ERR
|
|
|
|
"failed to read initial state for %s, error %d; "
|
|
|
|
"will turn radio off\n", name, res);
|
2009-01-11 13:01:03 +08:00
|
|
|
} else if (set_default) {
|
2009-01-11 13:01:02 +08:00
|
|
|
/* try to set the initial state as the default for the rfkill
|
|
|
|
* type, since we ask the firmware to preserve it across S5 in
|
|
|
|
* NVRAM */
|
2009-04-04 12:25:50 +08:00
|
|
|
if (rfkill_set_default(rfktype,
|
2009-01-11 13:01:02 +08:00
|
|
|
(initial_state == RFKILL_STATE_UNBLOCKED) ?
|
|
|
|
RFKILL_STATE_UNBLOCKED :
|
2009-04-04 12:25:50 +08:00
|
|
|
RFKILL_STATE_SOFT_BLOCKED) == -EPERM)
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"Default state for %s cannot be changed\n",
|
|
|
|
name);
|
2009-01-11 13:01:02 +08:00
|
|
|
}
|
2008-07-21 20:15:51 +08:00
|
|
|
|
|
|
|
*rfk = rfkill_allocate(&tpacpi_pdev->dev, rfktype);
|
|
|
|
if (!*rfk) {
|
|
|
|
printk(TPACPI_ERR
|
|
|
|
"failed to allocate memory for rfkill class\n");
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
(*rfk)->name = name;
|
|
|
|
(*rfk)->get_state = get_state;
|
|
|
|
(*rfk)->toggle_radio = toggle_radio;
|
2009-01-11 13:01:02 +08:00
|
|
|
(*rfk)->state = initial_state;
|
2008-07-21 20:15:51 +08:00
|
|
|
|
|
|
|
res = rfkill_register(*rfk);
|
|
|
|
if (res < 0) {
|
|
|
|
printk(TPACPI_ERR
|
|
|
|
"failed to register %s rfkill switch: %d\n",
|
|
|
|
name, res);
|
|
|
|
rfkill_free(*rfk);
|
|
|
|
*rfk = NULL;
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:47 +08:00
|
|
|
static void printk_deprecated_attribute(const char * const what,
|
|
|
|
const char * const details)
|
|
|
|
{
|
|
|
|
tpacpi_log_usertask("deprecated sysfs attribute");
|
|
|
|
printk(TPACPI_WARN "WARNING: sysfs attribute %s is deprecated and "
|
|
|
|
"will be removed. %s\n",
|
|
|
|
what, details);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void printk_deprecated_rfkill_attribute(const char * const what)
|
|
|
|
{
|
|
|
|
printk_deprecated_attribute(what,
|
|
|
|
"Please switch to generic rfkill before year 2010");
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
2008-01-08 23:02:45 +08:00
|
|
|
* thinkpad-acpi driver attributes
|
2007-03-24 04:33:57 +08:00
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* interface_version --------------------------------------------------- */
|
|
|
|
static ssize_t tpacpi_driver_interface_version_show(
|
|
|
|
struct device_driver *drv,
|
|
|
|
char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION);
|
|
|
|
}
|
|
|
|
|
|
|
|
static DRIVER_ATTR(interface_version, S_IRUGO,
|
|
|
|
tpacpi_driver_interface_version_show, NULL);
|
|
|
|
|
|
|
|
/* debug_level --------------------------------------------------------- */
|
|
|
|
static ssize_t tpacpi_driver_debug_show(struct device_driver *drv,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t tpacpi_driver_debug_store(struct device_driver *drv,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 0xffff, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
dbg_level = t;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
|
|
|
|
tpacpi_driver_debug_show, tpacpi_driver_debug_store);
|
|
|
|
|
|
|
|
/* version ------------------------------------------------------------- */
|
|
|
|
static ssize_t tpacpi_driver_version_show(struct device_driver *drv,
|
|
|
|
char *buf)
|
|
|
|
{
|
2008-01-08 23:02:49 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "%s v%s\n",
|
|
|
|
TPACPI_DESC, TPACPI_VERSION);
|
2008-01-08 23:02:45 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static DRIVER_ATTR(version, S_IRUGO,
|
|
|
|
tpacpi_driver_version_show, NULL);
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
|
|
|
|
static void tpacpi_send_radiosw_update(void);
|
|
|
|
|
|
|
|
/* wlsw_emulstate ------------------------------------------------------ */
|
|
|
|
static ssize_t tpacpi_driver_wlsw_emulstate_show(struct device_driver *drv,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t tpacpi_driver_wlsw_emulstate_store(struct device_driver *drv,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (tpacpi_wlsw_emulstate != t) {
|
|
|
|
tpacpi_wlsw_emulstate = !!t;
|
|
|
|
tpacpi_send_radiosw_update();
|
|
|
|
} else
|
|
|
|
tpacpi_wlsw_emulstate = !!t;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static DRIVER_ATTR(wlsw_emulstate, S_IWUSR | S_IRUGO,
|
|
|
|
tpacpi_driver_wlsw_emulstate_show,
|
|
|
|
tpacpi_driver_wlsw_emulstate_store);
|
|
|
|
|
|
|
|
/* bluetooth_emulstate ------------------------------------------------- */
|
|
|
|
static ssize_t tpacpi_driver_bluetooth_emulstate_show(
|
|
|
|
struct device_driver *drv,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t tpacpi_driver_bluetooth_emulstate_store(
|
|
|
|
struct device_driver *drv,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
tpacpi_bluetooth_emulstate = !!t;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static DRIVER_ATTR(bluetooth_emulstate, S_IWUSR | S_IRUGO,
|
|
|
|
tpacpi_driver_bluetooth_emulstate_show,
|
|
|
|
tpacpi_driver_bluetooth_emulstate_store);
|
|
|
|
|
|
|
|
/* wwan_emulstate ------------------------------------------------- */
|
|
|
|
static ssize_t tpacpi_driver_wwan_emulstate_show(
|
|
|
|
struct device_driver *drv,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t tpacpi_driver_wwan_emulstate_store(
|
|
|
|
struct device_driver *drv,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
tpacpi_wwan_emulstate = !!t;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static DRIVER_ATTR(wwan_emulstate, S_IWUSR | S_IRUGO,
|
|
|
|
tpacpi_driver_wwan_emulstate_show,
|
|
|
|
tpacpi_driver_wwan_emulstate_store);
|
|
|
|
|
2009-01-11 13:01:03 +08:00
|
|
|
/* uwb_emulstate ------------------------------------------------- */
|
|
|
|
static ssize_t tpacpi_driver_uwb_emulstate_show(
|
|
|
|
struct device_driver *drv,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t tpacpi_driver_uwb_emulstate_store(
|
|
|
|
struct device_driver *drv,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
tpacpi_uwb_emulstate = !!t;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static DRIVER_ATTR(uwb_emulstate, S_IWUSR | S_IRUGO,
|
|
|
|
tpacpi_driver_uwb_emulstate_show,
|
|
|
|
tpacpi_driver_uwb_emulstate_store);
|
2009-01-11 13:01:00 +08:00
|
|
|
#endif
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
static struct driver_attribute *tpacpi_driver_attributes[] = {
|
2008-01-08 23:02:45 +08:00
|
|
|
&driver_attr_debug_level, &driver_attr_version,
|
|
|
|
&driver_attr_interface_version,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init tpacpi_create_driver_attributes(struct device_driver *drv)
|
|
|
|
{
|
|
|
|
int i, res;
|
|
|
|
|
|
|
|
i = 0;
|
|
|
|
res = 0;
|
|
|
|
while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) {
|
|
|
|
res = driver_create_file(drv, tpacpi_driver_attributes[i]);
|
|
|
|
i++;
|
|
|
|
}
|
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (!res && dbg_wlswemul)
|
|
|
|
res = driver_create_file(drv, &driver_attr_wlsw_emulstate);
|
|
|
|
if (!res && dbg_bluetoothemul)
|
|
|
|
res = driver_create_file(drv, &driver_attr_bluetooth_emulstate);
|
|
|
|
if (!res && dbg_wwanemul)
|
|
|
|
res = driver_create_file(drv, &driver_attr_wwan_emulstate);
|
2009-01-11 13:01:03 +08:00
|
|
|
if (!res && dbg_uwbemul)
|
|
|
|
res = driver_create_file(drv, &driver_attr_uwb_emulstate);
|
2009-01-11 13:01:00 +08:00
|
|
|
#endif
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void tpacpi_remove_driver_attributes(struct device_driver *drv)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++)
|
2008-01-08 23:02:45 +08:00
|
|
|
driver_remove_file(drv, tpacpi_driver_attributes[i]);
|
2009-01-11 13:01:00 +08:00
|
|
|
|
|
|
|
#ifdef THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
driver_remove_file(drv, &driver_attr_wlsw_emulstate);
|
|
|
|
driver_remove_file(drv, &driver_attr_bluetooth_emulstate);
|
|
|
|
driver_remove_file(drv, &driver_attr_wwan_emulstate);
|
2009-01-11 13:01:03 +08:00
|
|
|
driver_remove_file(drv, &driver_attr_uwb_emulstate);
|
2009-01-11 13:01:00 +08:00
|
|
|
#endif
|
2008-01-08 23:02:45 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/****************************************************************************
|
|
|
|
****************************************************************************
|
|
|
|
*
|
|
|
|
* Subdrivers
|
|
|
|
*
|
|
|
|
****************************************************************************
|
|
|
|
****************************************************************************/
|
|
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
* thinkpad-acpi init subdriver
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int __init thinkpad_acpi_driver_init(struct ibm_init_struct *iibm)
|
|
|
|
{
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_INFO "%s v%s\n", TPACPI_DESC, TPACPI_VERSION);
|
|
|
|
printk(TPACPI_INFO "%s\n", TPACPI_URL);
|
2008-01-08 23:02:45 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_INFO "ThinkPad BIOS %s, EC %s\n",
|
2008-01-08 23:02:45 +08:00
|
|
|
(thinkpad_id.bios_version_str) ?
|
|
|
|
thinkpad_id.bios_version_str : "unknown",
|
|
|
|
(thinkpad_id.ec_version_str) ?
|
|
|
|
thinkpad_id.ec_version_str : "unknown");
|
2007-07-19 10:45:42 +08:00
|
|
|
|
|
|
|
if (thinkpad_id.vendor && thinkpad_id.model_str)
|
2008-04-26 12:02:19 +08:00
|
|
|
printk(TPACPI_INFO "%s %s, model %s\n",
|
2007-07-19 10:45:42 +08:00
|
|
|
(thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
|
|
|
|
"IBM" : ((thinkpad_id.vendor ==
|
|
|
|
PCI_VENDOR_ID_LENOVO) ?
|
|
|
|
"Lenovo" : "Unknown vendor"),
|
2008-04-26 12:02:19 +08:00
|
|
|
thinkpad_id.model_str,
|
|
|
|
(thinkpad_id.nummodel_str) ?
|
|
|
|
thinkpad_id.nummodel_str : "unknown");
|
2007-02-07 05:13:44 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-03-29 12:58:43 +08:00
|
|
|
static int thinkpad_acpi_driver_read(char *p)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
len += sprintf(p + len, "driver:\t\t%s\n", TPACPI_DESC);
|
|
|
|
len += sprintf(p + len, "version:\t%s\n", TPACPI_VERSION);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct thinkpad_acpi_driver_data = {
|
|
|
|
.name = "driver",
|
|
|
|
.read = thinkpad_acpi_driver_read,
|
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Hotkey subdriver
|
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
enum { /* hot key scan codes (derived from ACPI DSDT) */
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF1 = 0,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF2,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF3,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF4,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF5,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF6,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF7,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF8,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF9,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF10,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF11,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNF12,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNBACKSPACE,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNINSERT,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNDELETE,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNHOME,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNEND,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNPAGEUP,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNPAGEDOWN,
|
|
|
|
TP_ACPI_HOTKEYSCAN_FNSPACE,
|
|
|
|
TP_ACPI_HOTKEYSCAN_VOLUMEUP,
|
|
|
|
TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
|
|
|
|
TP_ACPI_HOTKEYSCAN_MUTE,
|
|
|
|
TP_ACPI_HOTKEYSCAN_THINKPAD,
|
|
|
|
};
|
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
enum { /* Keys available through NVRAM polling */
|
|
|
|
TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U,
|
|
|
|
TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum { /* Positions of some of the keys in hotkey masks */
|
|
|
|
TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7,
|
|
|
|
TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8,
|
|
|
|
TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12,
|
|
|
|
TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME,
|
|
|
|
TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND,
|
|
|
|
TP_ACPI_HKEY_THNKLGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP,
|
|
|
|
TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE,
|
|
|
|
TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP,
|
|
|
|
TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
|
|
|
|
TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE,
|
|
|
|
TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum { /* NVRAM to ACPI HKEY group map */
|
|
|
|
TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK |
|
|
|
|
TP_ACPI_HKEY_ZOOM_MASK |
|
|
|
|
TP_ACPI_HKEY_DISPSWTCH_MASK |
|
|
|
|
TP_ACPI_HKEY_HIBERNATE_MASK,
|
|
|
|
TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK |
|
|
|
|
TP_ACPI_HKEY_BRGHTDWN_MASK,
|
|
|
|
TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK |
|
|
|
|
TP_ACPI_HKEY_VOLDWN_MASK |
|
|
|
|
TP_ACPI_HKEY_MUTE_MASK,
|
|
|
|
};
|
|
|
|
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
struct tp_nvram_state {
|
|
|
|
u16 thinkpad_toggle:1;
|
|
|
|
u16 zoom_toggle:1;
|
|
|
|
u16 display_toggle:1;
|
|
|
|
u16 thinklight_toggle:1;
|
|
|
|
u16 hibernate_toggle:1;
|
|
|
|
u16 displayexp_toggle:1;
|
|
|
|
u16 display_state:1;
|
|
|
|
u16 brightness_toggle:1;
|
|
|
|
u16 volume_toggle:1;
|
|
|
|
u16 mute:1;
|
|
|
|
|
|
|
|
u8 brightness_level;
|
|
|
|
u8 volume_level;
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct task_struct *tpacpi_hotkey_task;
|
|
|
|
static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */
|
|
|
|
static int hotkey_poll_freq = 10; /* Hz */
|
|
|
|
static struct mutex hotkey_thread_mutex;
|
|
|
|
static struct mutex hotkey_thread_data_mutex;
|
|
|
|
static unsigned int hotkey_config_change;
|
|
|
|
|
|
|
|
#else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
|
|
|
|
#define hotkey_source_mask 0U
|
|
|
|
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
static struct mutex hotkey_mutex;
|
|
|
|
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
static enum { /* Reasons for waking up */
|
|
|
|
TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */
|
|
|
|
TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */
|
|
|
|
TP_ACPI_WAKEUP_UNDOCK, /* Undock request */
|
|
|
|
} hotkey_wakeup_reason;
|
|
|
|
|
|
|
|
static int hotkey_autosleep_ack;
|
|
|
|
|
2007-07-19 10:45:29 +08:00
|
|
|
static u32 hotkey_orig_mask;
|
2007-07-19 10:45:30 +08:00
|
|
|
static u32 hotkey_all_mask;
|
2007-07-19 10:45:35 +08:00
|
|
|
static u32 hotkey_reserved_mask;
|
2008-01-08 23:02:39 +08:00
|
|
|
static u32 hotkey_mask;
|
2007-07-19 10:45:35 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static unsigned int hotkey_report_mode;
|
|
|
|
|
2007-07-19 10:45:44 +08:00
|
|
|
static u16 *hotkey_keycode_map;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-07-19 10:45:27 +08:00
|
|
|
static struct attribute_set *hotkey_dev_attributes;
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
#define HOTKEY_CONFIG_CRITICAL_START \
|
2008-01-08 23:02:49 +08:00
|
|
|
do { \
|
|
|
|
mutex_lock(&hotkey_thread_data_mutex); \
|
|
|
|
hotkey_config_change++; \
|
|
|
|
} while (0);
|
2008-01-08 23:02:41 +08:00
|
|
|
#define HOTKEY_CONFIG_CRITICAL_END \
|
|
|
|
mutex_unlock(&hotkey_thread_data_mutex);
|
|
|
|
#else
|
|
|
|
#define HOTKEY_CONFIG_CRITICAL_START
|
|
|
|
#define HOTKEY_CONFIG_CRITICAL_END
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
|
2008-02-16 12:17:58 +08:00
|
|
|
/* HKEY.MHKG() return bits */
|
|
|
|
#define TP_HOTKEY_TABLET_MASK (1 << 3)
|
|
|
|
|
2007-07-19 10:45:31 +08:00
|
|
|
static int hotkey_get_wlsw(int *status)
|
|
|
|
{
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_wlswemul) {
|
|
|
|
*status = !!tpacpi_wlsw_emulstate;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
2007-07-19 10:45:31 +08:00
|
|
|
if (!acpi_evalf(hkey_handle, status, "WLSW", "d"))
|
|
|
|
return -EIO;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-02-16 12:17:58 +08:00
|
|
|
static int hotkey_get_tablet_mode(int *status)
|
|
|
|
{
|
|
|
|
int s;
|
|
|
|
|
|
|
|
if (!acpi_evalf(hkey_handle, &s, "MHKG", "d"))
|
|
|
|
return -EIO;
|
|
|
|
|
2008-03-05 06:29:21 +08:00
|
|
|
*status = ((s & TP_HOTKEY_TABLET_MASK) != 0);
|
|
|
|
return 0;
|
2008-02-16 12:17:58 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:39 +08:00
|
|
|
/*
|
|
|
|
* Call with hotkey_mutex held
|
|
|
|
*/
|
|
|
|
static int hotkey_mask_get(void)
|
|
|
|
{
|
2008-01-08 23:02:41 +08:00
|
|
|
u32 m = 0;
|
|
|
|
|
2008-01-08 23:02:39 +08:00
|
|
|
if (tp_features.hotkey_mask) {
|
2008-01-08 23:02:41 +08:00
|
|
|
if (!acpi_evalf(hkey_handle, &m, "DHKN", "d"))
|
2008-01-08 23:02:39 +08:00
|
|
|
return -EIO;
|
|
|
|
}
|
2008-01-08 23:02:41 +08:00
|
|
|
hotkey_mask = m | (hotkey_source_mask & hotkey_mask);
|
2008-01-08 23:02:39 +08:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Call with hotkey_mutex held
|
|
|
|
*/
|
|
|
|
static int hotkey_mask_set(u32 mask)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
if (tp_features.hotkey_mask) {
|
ACPI: thinkpad-acpi: warn once about weird hotkey masks
thinkpad-acpi knows for a while now how to best program the hotkeys by
default, and always enable them by default. Unfortunately, this
information has not filtered down everywhere it needs to, yet. Notably,
old ibm-acpi documentation and most "thinkpad setup guides" will have wrong
information on this area.
Warn the local admin once whenever any of the following patterns are met:
1. Attempts to set hotkey mask to 0xffff (artifact from docs and config
for the old ibm-acpi driver and behaviour). This mask makes no
real-world sense;
2. Attempts to set hotkey mask to 0xffffffff, which means the user is
trying to just have "everything work" without even reading the
documentation, or that we need to get a bug report, because there
is a new thinkpad out there with new exciting hot keys :-)
3. Attempts to set hotkey mask to 0xffffff, which is almost never the
correct way to set up volume and brightness event reporting (and with
the current state-of-the-art, it is known to never be right way to do
it).
The driver will perform any and all requested operations, though,
regardless of any warnings. I hope these warnings can be removed one or
two years from now.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-04-26 12:02:18 +08:00
|
|
|
if (!tp_warned.hotkey_mask_ff &&
|
|
|
|
(mask == 0xffff || mask == 0xffffff ||
|
|
|
|
mask == 0xffffffff)) {
|
|
|
|
tp_warned.hotkey_mask_ff = 1;
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"setting the hotkey mask to 0x%08x is likely "
|
|
|
|
"not the best way to go about it\n", mask);
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"please consider using the driver defaults, "
|
|
|
|
"and refer to up-to-date thinkpad-acpi "
|
|
|
|
"documentation\n");
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
HOTKEY_CONFIG_CRITICAL_START
|
2008-01-08 23:02:39 +08:00
|
|
|
for (i = 0; i < 32; i++) {
|
|
|
|
u32 m = 1 << i;
|
2008-01-08 23:02:41 +08:00
|
|
|
/* enable in firmware mask only keys not in NVRAM
|
|
|
|
* mode, but enable the key in the cached hotkey_mask
|
|
|
|
* regardless of mode, or the key will end up
|
|
|
|
* disabled by hotkey_mask_get() */
|
2008-01-08 23:02:39 +08:00
|
|
|
if (!acpi_evalf(hkey_handle,
|
|
|
|
NULL, "MHKM", "vdd", i + 1,
|
2008-01-08 23:02:41 +08:00
|
|
|
!!((mask & ~hotkey_source_mask) & m))) {
|
2008-01-08 23:02:39 +08:00
|
|
|
rc = -EIO;
|
|
|
|
break;
|
|
|
|
} else {
|
|
|
|
hotkey_mask = (hotkey_mask & ~m) | (mask & m);
|
|
|
|
}
|
|
|
|
}
|
2008-01-08 23:02:41 +08:00
|
|
|
HOTKEY_CONFIG_CRITICAL_END
|
2008-01-08 23:02:39 +08:00
|
|
|
|
|
|
|
/* hotkey_mask_get must be called unconditionally below */
|
2008-01-08 23:02:41 +08:00
|
|
|
if (!hotkey_mask_get() && !rc &&
|
|
|
|
(hotkey_mask & ~hotkey_source_mask) !=
|
|
|
|
(mask & ~hotkey_source_mask)) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_NOTICE
|
2008-01-08 23:02:39 +08:00
|
|
|
"requested hot key mask 0x%08x, but "
|
|
|
|
"firmware forced it to 0x%08x\n",
|
|
|
|
mask, hotkey_mask);
|
|
|
|
}
|
2008-01-08 23:02:41 +08:00
|
|
|
} else {
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
HOTKEY_CONFIG_CRITICAL_START
|
|
|
|
hotkey_mask = mask & hotkey_source_mask;
|
|
|
|
HOTKEY_CONFIG_CRITICAL_END
|
|
|
|
hotkey_mask_get();
|
|
|
|
if (hotkey_mask != mask) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_NOTICE
|
2008-01-08 23:02:41 +08:00
|
|
|
"requested hot key mask 0x%08x, "
|
|
|
|
"forced to 0x%08x (NVRAM poll mask is "
|
|
|
|
"0x%08x): no firmware mask support\n",
|
|
|
|
mask, hotkey_mask, hotkey_source_mask);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
hotkey_mask_get();
|
|
|
|
rc = -ENXIO;
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
2008-01-08 23:02:39 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int hotkey_status_get(int *status)
|
|
|
|
{
|
|
|
|
if (!acpi_evalf(hkey_handle, status, "DHKC", "d"))
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:48 +08:00
|
|
|
static int hotkey_status_set(bool enable)
|
2008-01-08 23:02:39 +08:00
|
|
|
{
|
2009-04-04 12:25:48 +08:00
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0))
|
2008-01-08 23:02:39 +08:00
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-02-16 12:17:58 +08:00
|
|
|
static void tpacpi_input_send_tabletsw(void)
|
2008-02-16 12:17:55 +08:00
|
|
|
{
|
2008-02-16 12:17:58 +08:00
|
|
|
int state;
|
2008-02-16 12:17:55 +08:00
|
|
|
|
2008-02-16 12:17:58 +08:00
|
|
|
if (tp_features.hotkey_tablet &&
|
|
|
|
!hotkey_get_tablet_mode(&state)) {
|
|
|
|
mutex_lock(&tpacpi_inputdev_send_mutex);
|
2008-02-16 12:17:55 +08:00
|
|
|
|
2008-02-16 12:17:58 +08:00
|
|
|
input_report_switch(tpacpi_inputdev,
|
|
|
|
SW_TABLET_MODE, !!state);
|
|
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
|
|
|
|
mutex_unlock(&tpacpi_inputdev_send_mutex);
|
|
|
|
}
|
2008-02-16 12:17:55 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:40 +08:00
|
|
|
static void tpacpi_input_send_key(unsigned int scancode)
|
|
|
|
{
|
|
|
|
unsigned int keycode;
|
|
|
|
|
|
|
|
keycode = hotkey_keycode_map[scancode];
|
|
|
|
|
|
|
|
if (keycode != KEY_RESERVED) {
|
|
|
|
mutex_lock(&tpacpi_inputdev_send_mutex);
|
|
|
|
|
|
|
|
input_report_key(tpacpi_inputdev, keycode, 1);
|
|
|
|
if (keycode == KEY_UNKNOWN)
|
|
|
|
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
|
|
|
|
scancode);
|
|
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
|
|
|
|
input_report_key(tpacpi_inputdev, keycode, 0);
|
|
|
|
if (keycode == KEY_UNKNOWN)
|
|
|
|
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN,
|
|
|
|
scancode);
|
|
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
|
|
|
|
mutex_unlock(&tpacpi_inputdev_send_mutex);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
static struct tp_acpi_drv_struct ibm_hotkey_acpidriver;
|
|
|
|
|
|
|
|
static void tpacpi_hotkey_send_key(unsigned int scancode)
|
|
|
|
{
|
|
|
|
tpacpi_input_send_key(scancode);
|
|
|
|
if (hotkey_report_mode < 2) {
|
|
|
|
acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device,
|
|
|
|
0x80, 0x1001 + scancode);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void hotkey_read_nvram(struct tp_nvram_state *n, u32 m)
|
|
|
|
{
|
|
|
|
u8 d;
|
|
|
|
|
|
|
|
if (m & TP_NVRAM_HKEY_GROUP_HK2) {
|
|
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_HK2);
|
|
|
|
n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD);
|
|
|
|
n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM);
|
|
|
|
n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY);
|
|
|
|
n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE);
|
|
|
|
}
|
|
|
|
if (m & TP_ACPI_HKEY_THNKLGHT_MASK) {
|
|
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT);
|
|
|
|
n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT);
|
|
|
|
}
|
|
|
|
if (m & TP_ACPI_HKEY_DISPXPAND_MASK) {
|
|
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO);
|
|
|
|
n->displayexp_toggle =
|
|
|
|
!!(d & TP_NVRAM_MASK_HKT_DISPEXPND);
|
|
|
|
}
|
|
|
|
if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) {
|
|
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
|
|
|
|
n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
|
|
|
|
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
|
|
|
|
n->brightness_toggle =
|
|
|
|
!!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS);
|
|
|
|
}
|
|
|
|
if (m & TP_NVRAM_HKEY_GROUP_VOLUME) {
|
|
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
|
|
|
|
n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME)
|
|
|
|
>> TP_NVRAM_POS_LEVEL_VOLUME;
|
|
|
|
n->mute = !!(d & TP_NVRAM_MASK_MUTE);
|
|
|
|
n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#define TPACPI_COMPARE_KEY(__scancode, __member) \
|
2008-01-08 23:02:49 +08:00
|
|
|
do { \
|
|
|
|
if ((mask & (1 << __scancode)) && \
|
|
|
|
oldn->__member != newn->__member) \
|
|
|
|
tpacpi_hotkey_send_key(__scancode); \
|
|
|
|
} while (0)
|
2008-01-08 23:02:41 +08:00
|
|
|
|
|
|
|
#define TPACPI_MAY_SEND_KEY(__scancode) \
|
|
|
|
do { if (mask & (1 << __scancode)) \
|
|
|
|
tpacpi_hotkey_send_key(__scancode); } while (0)
|
|
|
|
|
|
|
|
static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
|
2008-01-08 23:02:49 +08:00
|
|
|
struct tp_nvram_state *newn,
|
2008-01-08 23:02:41 +08:00
|
|
|
u32 mask)
|
|
|
|
{
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle);
|
|
|
|
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle);
|
|
|
|
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle);
|
|
|
|
|
|
|
|
/* handle volume */
|
|
|
|
if (oldn->volume_toggle != newn->volume_toggle) {
|
|
|
|
if (oldn->mute != newn->mute) {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
|
|
|
|
}
|
|
|
|
if (oldn->volume_level > newn->volume_level) {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
|
|
|
|
} else if (oldn->volume_level < newn->volume_level) {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
|
|
|
|
} else if (oldn->mute == newn->mute) {
|
|
|
|
/* repeated key presses that didn't change state */
|
|
|
|
if (newn->mute) {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
|
|
|
|
} else if (newn->volume_level != 0) {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
|
|
|
|
} else {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* handle brightness */
|
|
|
|
if (oldn->brightness_toggle != newn->brightness_toggle) {
|
|
|
|
if (oldn->brightness_level < newn->brightness_level) {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
|
|
|
|
} else if (oldn->brightness_level > newn->brightness_level) {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
|
|
|
|
} else {
|
|
|
|
/* repeated key presses that didn't change state */
|
|
|
|
if (newn->brightness_level != 0) {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
|
|
|
|
} else {
|
|
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#undef TPACPI_COMPARE_KEY
|
|
|
|
#undef TPACPI_MAY_SEND_KEY
|
|
|
|
|
|
|
|
static int hotkey_kthread(void *data)
|
|
|
|
{
|
|
|
|
struct tp_nvram_state s[2];
|
|
|
|
u32 mask;
|
|
|
|
unsigned int si, so;
|
|
|
|
unsigned long t;
|
|
|
|
unsigned int change_detector, must_reset;
|
|
|
|
|
|
|
|
mutex_lock(&hotkey_thread_mutex);
|
|
|
|
|
|
|
|
if (tpacpi_lifecycle == TPACPI_LIFE_EXITING)
|
|
|
|
goto exit;
|
|
|
|
|
|
|
|
set_freezable();
|
|
|
|
|
|
|
|
so = 0;
|
|
|
|
si = 1;
|
|
|
|
t = 0;
|
|
|
|
|
|
|
|
/* Initial state for compares */
|
|
|
|
mutex_lock(&hotkey_thread_data_mutex);
|
|
|
|
change_detector = hotkey_config_change;
|
|
|
|
mask = hotkey_source_mask & hotkey_mask;
|
|
|
|
mutex_unlock(&hotkey_thread_data_mutex);
|
|
|
|
hotkey_read_nvram(&s[so], mask);
|
|
|
|
|
|
|
|
while (!kthread_should_stop() && hotkey_poll_freq) {
|
|
|
|
if (t == 0)
|
|
|
|
t = 1000/hotkey_poll_freq;
|
|
|
|
t = msleep_interruptible(t);
|
|
|
|
if (unlikely(kthread_should_stop()))
|
|
|
|
break;
|
|
|
|
must_reset = try_to_freeze();
|
|
|
|
if (t > 0 && !must_reset)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
mutex_lock(&hotkey_thread_data_mutex);
|
|
|
|
if (must_reset || hotkey_config_change != change_detector) {
|
|
|
|
/* forget old state on thaw or config change */
|
|
|
|
si = so;
|
|
|
|
t = 0;
|
|
|
|
change_detector = hotkey_config_change;
|
|
|
|
}
|
|
|
|
mask = hotkey_source_mask & hotkey_mask;
|
|
|
|
mutex_unlock(&hotkey_thread_data_mutex);
|
|
|
|
|
|
|
|
if (likely(mask)) {
|
|
|
|
hotkey_read_nvram(&s[si], mask);
|
|
|
|
if (likely(si != so)) {
|
|
|
|
hotkey_compare_and_issue_event(&s[so], &s[si],
|
2008-01-08 23:02:49 +08:00
|
|
|
mask);
|
2008-01-08 23:02:41 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
so = si;
|
|
|
|
si ^= 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
exit:
|
|
|
|
mutex_unlock(&hotkey_thread_mutex);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void hotkey_poll_stop_sync(void)
|
|
|
|
{
|
|
|
|
if (tpacpi_hotkey_task) {
|
|
|
|
if (frozen(tpacpi_hotkey_task) ||
|
|
|
|
freezing(tpacpi_hotkey_task))
|
|
|
|
thaw_process(tpacpi_hotkey_task);
|
|
|
|
|
|
|
|
kthread_stop(tpacpi_hotkey_task);
|
|
|
|
tpacpi_hotkey_task = NULL;
|
|
|
|
mutex_lock(&hotkey_thread_mutex);
|
|
|
|
/* at this point, the thread did exit */
|
|
|
|
mutex_unlock(&hotkey_thread_mutex);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* call with hotkey_mutex held */
|
|
|
|
static void hotkey_poll_setup(int may_warn)
|
|
|
|
{
|
|
|
|
if ((hotkey_source_mask & hotkey_mask) != 0 &&
|
|
|
|
hotkey_poll_freq > 0 &&
|
|
|
|
(tpacpi_inputdev->users > 0 || hotkey_report_mode < 2)) {
|
|
|
|
if (!tpacpi_hotkey_task) {
|
|
|
|
tpacpi_hotkey_task = kthread_run(hotkey_kthread,
|
2008-04-26 12:02:22 +08:00
|
|
|
NULL, TPACPI_NVRAM_KTHREAD_NAME);
|
2008-01-08 23:02:41 +08:00
|
|
|
if (IS_ERR(tpacpi_hotkey_task)) {
|
|
|
|
tpacpi_hotkey_task = NULL;
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"could not create kernel thread "
|
2008-01-08 23:02:41 +08:00
|
|
|
"for hotkey polling\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
hotkey_poll_stop_sync();
|
|
|
|
if (may_warn &&
|
|
|
|
hotkey_source_mask != 0 && hotkey_poll_freq == 0) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"hot keys 0x%08x require polling, "
|
2008-01-08 23:02:41 +08:00
|
|
|
"which is currently disabled\n",
|
|
|
|
hotkey_source_mask);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void hotkey_poll_setup_safe(int may_warn)
|
|
|
|
{
|
|
|
|
mutex_lock(&hotkey_mutex);
|
|
|
|
hotkey_poll_setup(may_warn);
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
|
|
|
}
|
|
|
|
|
2008-02-16 12:17:52 +08:00
|
|
|
#else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
|
|
|
|
static void hotkey_poll_setup_safe(int __unused)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
static int hotkey_inputdev_open(struct input_dev *dev)
|
|
|
|
{
|
|
|
|
switch (tpacpi_lifecycle) {
|
|
|
|
case TPACPI_LIFE_INIT:
|
|
|
|
/*
|
|
|
|
* hotkey_init will call hotkey_poll_setup_safe
|
|
|
|
* at the appropriate moment
|
|
|
|
*/
|
|
|
|
return 0;
|
|
|
|
case TPACPI_LIFE_EXITING:
|
|
|
|
return -EBUSY;
|
|
|
|
case TPACPI_LIFE_RUNNING:
|
|
|
|
hotkey_poll_setup_safe(0);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Should only happen if tpacpi_lifecycle is corrupt */
|
|
|
|
BUG();
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void hotkey_inputdev_close(struct input_dev *dev)
|
|
|
|
{
|
|
|
|
/* disable hotkey polling when possible */
|
|
|
|
if (tpacpi_lifecycle == TPACPI_LIFE_RUNNING)
|
|
|
|
hotkey_poll_setup_safe(0);
|
|
|
|
}
|
|
|
|
|
2007-04-28 09:00:16 +08:00
|
|
|
/* sysfs hotkey enable ------------------------------------------------- */
|
|
|
|
static ssize_t hotkey_enable_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
2007-07-19 10:45:29 +08:00
|
|
|
int res, status;
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2009-04-04 12:25:48 +08:00
|
|
|
printk_deprecated_attribute("hotkey_enable",
|
|
|
|
"Hotkey reporting is always enabled");
|
|
|
|
|
2008-01-08 23:02:39 +08:00
|
|
|
res = hotkey_status_get(&status);
|
2007-04-28 09:00:16 +08:00
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", status);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t hotkey_enable_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
2009-04-04 12:25:48 +08:00
|
|
|
|
|
|
|
printk_deprecated_attribute("hotkey_enable",
|
|
|
|
"Hotkeys can be disabled through hotkey_mask");
|
2007-04-28 09:00:16 +08:00
|
|
|
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-04-04 12:25:48 +08:00
|
|
|
if (t == 0)
|
|
|
|
return -EPERM;
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2009-04-04 12:25:48 +08:00
|
|
|
return count;
|
2007-04-28 09:00:16 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_enable =
|
2007-05-31 07:50:14 +08:00
|
|
|
__ATTR(hotkey_enable, S_IWUSR | S_IRUGO,
|
2007-04-28 09:00:16 +08:00
|
|
|
hotkey_enable_show, hotkey_enable_store);
|
|
|
|
|
|
|
|
/* sysfs hotkey mask --------------------------------------------------- */
|
|
|
|
static ssize_t hotkey_mask_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
2008-01-08 23:02:39 +08:00
|
|
|
int res;
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
2008-01-08 23:02:39 +08:00
|
|
|
return -ERESTARTSYS;
|
|
|
|
res = hotkey_mask_get();
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2008-01-08 23:02:39 +08:00
|
|
|
return (res)?
|
|
|
|
res : snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_mask);
|
2007-04-28 09:00:16 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t hotkey_mask_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
2008-01-08 23:02:39 +08:00
|
|
|
int res;
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2007-07-19 10:45:29 +08:00
|
|
|
if (parse_strtoul(buf, 0xffffffffUL, &t))
|
2007-04-28 09:00:16 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
2008-01-08 23:02:39 +08:00
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
res = hotkey_mask_set(t);
|
2008-01-08 23:02:41 +08:00
|
|
|
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
hotkey_poll_setup(1);
|
|
|
|
#endif
|
|
|
|
|
2008-01-08 23:02:39 +08:00
|
|
|
mutex_unlock(&hotkey_mutex);
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t);
|
|
|
|
|
2007-04-28 09:00:16 +08:00
|
|
|
return (res) ? res : count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_mask =
|
2007-05-31 07:50:14 +08:00
|
|
|
__ATTR(hotkey_mask, S_IWUSR | S_IRUGO,
|
2007-04-28 09:00:16 +08:00
|
|
|
hotkey_mask_show, hotkey_mask_store);
|
|
|
|
|
|
|
|
/* sysfs hotkey bios_enabled ------------------------------------------- */
|
|
|
|
static ssize_t hotkey_bios_enabled_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
2009-04-04 12:25:48 +08:00
|
|
|
return sprintf(buf, "0\n");
|
2007-04-28 09:00:16 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_bios_enabled =
|
2007-05-31 07:50:14 +08:00
|
|
|
__ATTR(hotkey_bios_enabled, S_IRUGO, hotkey_bios_enabled_show, NULL);
|
2007-04-28 09:00:16 +08:00
|
|
|
|
|
|
|
/* sysfs hotkey bios_mask ---------------------------------------------- */
|
|
|
|
static ssize_t hotkey_bios_mask_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
2007-07-19 10:45:29 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask);
|
2007-04-28 09:00:16 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_bios_mask =
|
2007-05-31 07:50:14 +08:00
|
|
|
__ATTR(hotkey_bios_mask, S_IRUGO, hotkey_bios_mask_show, NULL);
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2007-07-19 10:45:30 +08:00
|
|
|
/* sysfs hotkey all_mask ----------------------------------------------- */
|
|
|
|
static ssize_t hotkey_all_mask_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
2008-01-08 23:02:41 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n",
|
|
|
|
hotkey_all_mask | hotkey_source_mask);
|
2007-07-19 10:45:30 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_all_mask =
|
|
|
|
__ATTR(hotkey_all_mask, S_IRUGO, hotkey_all_mask_show, NULL);
|
|
|
|
|
|
|
|
/* sysfs hotkey recommended_mask --------------------------------------- */
|
|
|
|
static ssize_t hotkey_recommended_mask_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n",
|
2008-01-08 23:02:41 +08:00
|
|
|
(hotkey_all_mask | hotkey_source_mask)
|
|
|
|
& ~hotkey_reserved_mask);
|
2007-07-19 10:45:30 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_recommended_mask =
|
|
|
|
__ATTR(hotkey_recommended_mask, S_IRUGO,
|
|
|
|
hotkey_recommended_mask_show, NULL);
|
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
|
|
|
|
/* sysfs hotkey hotkey_source_mask ------------------------------------- */
|
|
|
|
static ssize_t hotkey_source_mask_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t hotkey_source_mask_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 0xffffffffUL, &t) ||
|
|
|
|
((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
2008-01-08 23:02:41 +08:00
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
HOTKEY_CONFIG_CRITICAL_START
|
|
|
|
hotkey_source_mask = t;
|
|
|
|
HOTKEY_CONFIG_CRITICAL_END
|
|
|
|
|
|
|
|
hotkey_poll_setup(1);
|
|
|
|
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t);
|
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_source_mask =
|
|
|
|
__ATTR(hotkey_source_mask, S_IWUSR | S_IRUGO,
|
|
|
|
hotkey_source_mask_show, hotkey_source_mask_store);
|
|
|
|
|
|
|
|
/* sysfs hotkey hotkey_poll_freq --------------------------------------- */
|
|
|
|
static ssize_t hotkey_poll_freq_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t hotkey_poll_freq_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 25, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
2008-01-08 23:02:41 +08:00
|
|
|
return -ERESTARTSYS;
|
|
|
|
|
|
|
|
hotkey_poll_freq = t;
|
|
|
|
|
|
|
|
hotkey_poll_setup(1);
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t);
|
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_poll_freq =
|
|
|
|
__ATTR(hotkey_poll_freq, S_IWUSR | S_IRUGO,
|
|
|
|
hotkey_poll_freq_show, hotkey_poll_freq_store);
|
|
|
|
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
|
2008-01-08 23:02:55 +08:00
|
|
|
/* sysfs hotkey radio_sw (pollable) ------------------------------------ */
|
2007-07-19 10:45:31 +08:00
|
|
|
static ssize_t hotkey_radio_sw_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
int res, s;
|
|
|
|
res = hotkey_get_wlsw(&s);
|
|
|
|
if (res < 0)
|
|
|
|
return res;
|
|
|
|
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!s);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_radio_sw =
|
|
|
|
__ATTR(hotkey_radio_sw, S_IRUGO, hotkey_radio_sw_show, NULL);
|
|
|
|
|
2008-01-08 23:02:55 +08:00
|
|
|
static void hotkey_radio_sw_notify_change(void)
|
|
|
|
{
|
|
|
|
if (tp_features.hotkey_wlsw)
|
|
|
|
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
|
|
|
|
"hotkey_radio_sw");
|
|
|
|
}
|
|
|
|
|
2008-02-16 12:17:58 +08:00
|
|
|
/* sysfs hotkey tablet mode (pollable) --------------------------------- */
|
|
|
|
static ssize_t hotkey_tablet_mode_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
int res, s;
|
|
|
|
res = hotkey_get_tablet_mode(&s);
|
|
|
|
if (res < 0)
|
|
|
|
return res;
|
|
|
|
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!s);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_tablet_mode =
|
|
|
|
__ATTR(hotkey_tablet_mode, S_IRUGO, hotkey_tablet_mode_show, NULL);
|
|
|
|
|
|
|
|
static void hotkey_tablet_mode_notify_change(void)
|
|
|
|
{
|
|
|
|
if (tp_features.hotkey_tablet)
|
|
|
|
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
|
|
|
|
"hotkey_tablet_mode");
|
|
|
|
}
|
|
|
|
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
/* sysfs hotkey report_mode -------------------------------------------- */
|
|
|
|
static ssize_t hotkey_report_mode_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n",
|
|
|
|
(hotkey_report_mode != 0) ? hotkey_report_mode : 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_report_mode =
|
|
|
|
__ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL);
|
|
|
|
|
2008-01-08 23:02:55 +08:00
|
|
|
/* sysfs wakeup reason (pollable) -------------------------------------- */
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
static ssize_t hotkey_wakeup_reason_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_wakeup_reason =
|
|
|
|
__ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL);
|
|
|
|
|
2008-02-14 05:30:06 +08:00
|
|
|
static void hotkey_wakeup_reason_notify_change(void)
|
2008-01-08 23:02:55 +08:00
|
|
|
{
|
|
|
|
if (tp_features.hotkey_mask)
|
|
|
|
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
|
|
|
|
"wakeup_reason");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* sysfs wakeup hotunplug_complete (pollable) -------------------------- */
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_hotkey_wakeup_hotunplug_complete =
|
|
|
|
__ATTR(wakeup_hotunplug_complete, S_IRUGO,
|
|
|
|
hotkey_wakeup_hotunplug_complete_show, NULL);
|
|
|
|
|
2008-02-14 05:30:06 +08:00
|
|
|
static void hotkey_wakeup_hotunplug_complete_notify_change(void)
|
2008-01-08 23:02:55 +08:00
|
|
|
{
|
|
|
|
if (tp_features.hotkey_mask)
|
|
|
|
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
|
|
|
|
"wakeup_hotunplug_complete");
|
|
|
|
}
|
|
|
|
|
2007-04-28 09:00:16 +08:00
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
static struct attribute *hotkey_attributes[] __initdata = {
|
|
|
|
&dev_attr_hotkey_enable.attr,
|
2008-01-08 23:02:41 +08:00
|
|
|
&dev_attr_hotkey_bios_enabled.attr,
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
&dev_attr_hotkey_report_mode.attr,
|
2008-01-08 23:02:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
&dev_attr_hotkey_mask.attr,
|
|
|
|
&dev_attr_hotkey_all_mask.attr,
|
|
|
|
&dev_attr_hotkey_recommended_mask.attr,
|
|
|
|
&dev_attr_hotkey_source_mask.attr,
|
|
|
|
&dev_attr_hotkey_poll_freq.attr,
|
|
|
|
#endif
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
static struct attribute *hotkey_mask_attributes[] __initdata = {
|
2007-04-28 09:00:16 +08:00
|
|
|
&dev_attr_hotkey_bios_mask.attr,
|
2008-01-08 23:02:41 +08:00
|
|
|
#ifndef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
&dev_attr_hotkey_mask.attr,
|
2007-07-19 10:45:30 +08:00
|
|
|
&dev_attr_hotkey_all_mask.attr,
|
|
|
|
&dev_attr_hotkey_recommended_mask.attr,
|
2008-01-08 23:02:41 +08:00
|
|
|
#endif
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
&dev_attr_hotkey_wakeup_reason.attr,
|
|
|
|
&dev_attr_hotkey_wakeup_hotunplug_complete.attr,
|
2007-04-28 09:00:16 +08:00
|
|
|
};
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
static void bluetooth_update_rfk(void);
|
|
|
|
static void wan_update_rfk(void);
|
2009-01-11 13:01:03 +08:00
|
|
|
static void uwb_update_rfk(void);
|
2008-07-21 20:15:49 +08:00
|
|
|
static void tpacpi_send_radiosw_update(void)
|
|
|
|
{
|
|
|
|
int wlsw;
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
/* Sync these BEFORE sending any rfkill events */
|
|
|
|
if (tp_features.bluetooth)
|
|
|
|
bluetooth_update_rfk();
|
|
|
|
if (tp_features.wan)
|
|
|
|
wan_update_rfk();
|
2009-01-11 13:01:03 +08:00
|
|
|
if (tp_features.uwb)
|
|
|
|
uwb_update_rfk();
|
2008-07-21 20:15:51 +08:00
|
|
|
|
2008-07-21 20:15:49 +08:00
|
|
|
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&wlsw)) {
|
|
|
|
mutex_lock(&tpacpi_inputdev_send_mutex);
|
|
|
|
|
|
|
|
input_report_switch(tpacpi_inputdev,
|
|
|
|
SW_RFKILL_ALL, !!wlsw);
|
|
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
|
|
|
|
mutex_unlock(&tpacpi_inputdev_send_mutex);
|
|
|
|
}
|
|
|
|
hotkey_radio_sw_notify_change();
|
|
|
|
}
|
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
static void hotkey_exit(void)
|
|
|
|
{
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
hotkey_poll_stop_sync();
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (hotkey_dev_attributes)
|
|
|
|
delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj);
|
|
|
|
|
|
|
|
kfree(hotkey_keycode_map);
|
|
|
|
|
|
|
|
if (tp_features.hotkey) {
|
2009-04-04 12:25:51 +08:00
|
|
|
dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY,
|
2008-06-04 10:36:10 +08:00
|
|
|
"restoring original hot key mask\n");
|
|
|
|
/* no short-circuit boolean operator below! */
|
|
|
|
if ((hotkey_mask_set(hotkey_orig_mask) |
|
2009-04-04 12:25:48 +08:00
|
|
|
hotkey_status_set(false)) != 0)
|
2008-06-04 10:36:10 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"failed to restore hot key mask "
|
|
|
|
"to BIOS defaults\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init hotkey_init(struct ibm_init_struct *iibm)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
/* Requirements for changing the default keymaps:
|
|
|
|
*
|
|
|
|
* 1. Many of the keys are mapped to KEY_RESERVED for very
|
|
|
|
* good reasons. Do not change them unless you have deep
|
|
|
|
* knowledge on the IBM and Lenovo ThinkPad firmware for
|
|
|
|
* the various ThinkPad models. The driver behaves
|
|
|
|
* differently for KEY_RESERVED: such keys have their
|
|
|
|
* hot key mask *unset* in mask_recommended, and also
|
|
|
|
* in the initial hot key mask programmed into the
|
|
|
|
* firmware at driver load time, which means the firm-
|
|
|
|
* ware may react very differently if you change them to
|
|
|
|
* something else;
|
|
|
|
*
|
|
|
|
* 2. You must be subscribed to the linux-thinkpad and
|
|
|
|
* ibm-acpi-devel mailing lists, and you should read the
|
|
|
|
* list archives since 2007 if you want to change the
|
|
|
|
* keymaps. This requirement exists so that you will
|
|
|
|
* know the past history of problems with the thinkpad-
|
|
|
|
* acpi driver keymaps, and also that you will be
|
|
|
|
* listening to any bug reports;
|
|
|
|
*
|
|
|
|
* 3. Do not send thinkpad-acpi specific patches directly to
|
|
|
|
* for merging, *ever*. Send them to the linux-acpi
|
|
|
|
* mailinglist for comments. Merging is to be done only
|
|
|
|
* through acpi-test and the ACPI maintainer.
|
|
|
|
*
|
|
|
|
* If the above is too much to ask, don't change the keymap.
|
|
|
|
* Ask the thinkpad-acpi maintainer to do it, instead.
|
|
|
|
*/
|
2007-07-19 10:45:44 +08:00
|
|
|
static u16 ibm_keycode_map[] __initdata = {
|
|
|
|
/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
|
|
|
|
KEY_FN_F1, KEY_FN_F2, KEY_COFFEE, KEY_SLEEP,
|
|
|
|
KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
|
|
|
|
KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND,
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
|
|
|
/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
|
2007-07-19 10:45:44 +08:00
|
|
|
KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */
|
|
|
|
KEY_UNKNOWN, /* 0x0D: FN+INSERT */
|
|
|
|
KEY_UNKNOWN, /* 0x0E: FN+DELETE */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
|
|
|
/* brightness: firmware always reacts to them, unless
|
|
|
|
* X.org did some tricks in the radeon BIOS scratch
|
|
|
|
* registers of *some* models */
|
2007-10-31 03:46:19 +08:00
|
|
|
KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */
|
|
|
|
KEY_RESERVED, /* 0x10: FN+END (brightness down) */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
|
|
|
/* Thinklight: firmware always react to it */
|
2007-07-19 10:45:44 +08:00
|
|
|
KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
2007-07-19 10:45:44 +08:00
|
|
|
KEY_UNKNOWN, /* 0x12: FN+PGDOWN */
|
|
|
|
KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
|
|
|
/* Volume: firmware always react to it and reprograms
|
|
|
|
* the built-in *extra* mixer. Never map it to control
|
|
|
|
* another mixer by default. */
|
2007-10-31 03:46:19 +08:00
|
|
|
KEY_RESERVED, /* 0x14: VOLUME UP */
|
|
|
|
KEY_RESERVED, /* 0x15: VOLUME DOWN */
|
|
|
|
KEY_RESERVED, /* 0x16: MUTE */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
2007-07-19 10:45:44 +08:00
|
|
|
KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
2007-07-19 10:45:44 +08:00
|
|
|
/* (assignments unknown, please report if found) */
|
|
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
|
|
};
|
|
|
|
static u16 lenovo_keycode_map[] __initdata = {
|
|
|
|
/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
|
|
|
|
KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP,
|
|
|
|
KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
|
|
|
|
KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND,
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
|
|
|
/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
|
2007-07-19 10:45:44 +08:00
|
|
|
KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */
|
|
|
|
KEY_UNKNOWN, /* 0x0D: FN+INSERT */
|
|
|
|
KEY_UNKNOWN, /* 0x0E: FN+DELETE */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
2008-04-26 12:02:17 +08:00
|
|
|
/* These either have to go through ACPI video, or
|
|
|
|
* act like in the IBM ThinkPads, so don't ever
|
|
|
|
* enable them by default */
|
2007-12-13 22:14:09 +08:00
|
|
|
KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */
|
|
|
|
KEY_RESERVED, /* 0x10: FN+END (brightness down) */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
2007-07-19 10:45:44 +08:00
|
|
|
KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
2007-07-19 10:45:44 +08:00
|
|
|
KEY_UNKNOWN, /* 0x12: FN+PGDOWN */
|
|
|
|
KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
|
|
|
/* Volume: z60/z61, T60 (BIOS version?): firmware always
|
|
|
|
* react to it and reprograms the built-in *extra* mixer.
|
|
|
|
* Never map it to control another mixer by default.
|
|
|
|
*
|
|
|
|
* T60?, T61, R60?, R61: firmware and EC tries to send
|
|
|
|
* these over the regular keyboard, so these are no-ops,
|
|
|
|
* but there are still weird bugs re. MUTE, so do not
|
|
|
|
* change unless you get test reports from all Lenovo
|
|
|
|
* models. May cause the BIOS to interfere with the
|
|
|
|
* HDA mixer.
|
|
|
|
*/
|
2007-10-31 03:46:19 +08:00
|
|
|
KEY_RESERVED, /* 0x14: VOLUME UP */
|
|
|
|
KEY_RESERVED, /* 0x15: VOLUME DOWN */
|
|
|
|
KEY_RESERVED, /* 0x16: MUTE */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
2007-07-19 10:45:44 +08:00
|
|
|
KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */
|
ACPI: thinkpad-acpi: document keymap gotcha's (v2)
Publish the requirements for keymap changes. This is a documentation
change, only.
Currently, people look at the thinkpad-acpi default keymaps, and think:
"modifying this is a trivial thing, it can't break systems, and there are
keys defined for foo and bar, but the driver has them as KEY_RESERVED.
Must have been an oversight, let me change it."
And since they never get to see the bug reports, because they are not
really a part of the Linux ThinkPad users community (linux-thinkpad
mailinglist, thinkwiki wiki, thinkpad forums) and laptop users are slow
to complain to distros about any breakages...
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:38 +08:00
|
|
|
|
2007-07-19 10:45:44 +08:00
|
|
|
/* (assignments unknown, please report if found) */
|
|
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
|
|
};
|
|
|
|
|
|
|
|
#define TPACPI_HOTKEY_MAP_LEN ARRAY_SIZE(ibm_keycode_map)
|
|
|
|
#define TPACPI_HOTKEY_MAP_SIZE sizeof(ibm_keycode_map)
|
|
|
|
#define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(ibm_keycode_map[0])
|
|
|
|
|
2007-07-19 10:45:35 +08:00
|
|
|
int res, i;
|
2007-07-19 10:45:31 +08:00
|
|
|
int status;
|
2007-09-23 22:39:03 +08:00
|
|
|
int hkeyv;
|
2007-04-21 22:08:39 +08:00
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
|
|
"initializing hotkey subdriver\n");
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2007-07-19 10:45:35 +08:00
|
|
|
BUG_ON(!tpacpi_inputdev);
|
2008-01-08 23:02:41 +08:00
|
|
|
BUG_ON(tpacpi_inputdev->open != NULL ||
|
|
|
|
tpacpi_inputdev->close != NULL);
|
2007-07-19 10:45:35 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
2007-04-24 22:48:15 +08:00
|
|
|
mutex_init(&hotkey_mutex);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
mutex_init(&hotkey_thread_mutex);
|
|
|
|
mutex_init(&hotkey_thread_data_mutex);
|
|
|
|
#endif
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/* hotkey not supported on 570 */
|
2007-04-21 22:08:36 +08:00
|
|
|
tp_features.hotkey = hkey_handle != NULL;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
|
|
"hotkeys are %s\n",
|
2007-04-21 22:08:36 +08:00
|
|
|
str_supported(tp_features.hotkey));
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
if (!tp_features.hotkey)
|
|
|
|
return 1;
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2008-10-19 01:23:55 +08:00
|
|
|
tpacpi_disable_brightness_delay();
|
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
hotkey_dev_attributes = create_attr_set(13, NULL);
|
|
|
|
if (!hotkey_dev_attributes)
|
|
|
|
return -ENOMEM;
|
|
|
|
res = add_many_to_attr_set(hotkey_dev_attributes,
|
|
|
|
hotkey_attributes,
|
|
|
|
ARRAY_SIZE(hotkey_attributes));
|
|
|
|
if (res)
|
|
|
|
goto err_exit;
|
|
|
|
|
|
|
|
/* mask not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
|
|
|
|
A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking
|
|
|
|
for HKEY interface version 0x100 */
|
|
|
|
if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) {
|
|
|
|
if ((hkeyv >> 8) != 1) {
|
|
|
|
printk(TPACPI_ERR "unknown version of the "
|
|
|
|
"HKEY interface: 0x%x\n", hkeyv);
|
|
|
|
printk(TPACPI_ERR "please report this to %s\n",
|
|
|
|
TPACPI_MAIL);
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* MHKV 0x100 in A31, R40, R40e,
|
|
|
|
* T4x, X31, and later
|
|
|
|
*/
|
|
|
|
tp_features.hotkey_mask = 1;
|
2009-04-04 12:25:51 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
|
|
"firmware HKEY interface version: 0x%x\n",
|
|
|
|
hkeyv);
|
2007-09-23 22:39:03 +08:00
|
|
|
}
|
2008-06-04 10:36:10 +08:00
|
|
|
}
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
|
|
"hotkey masks are %s\n",
|
2008-06-04 10:36:10 +08:00
|
|
|
str_supported(tp_features.hotkey_mask));
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
if (tp_features.hotkey_mask) {
|
|
|
|
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
|
|
|
|
"MHKA", "qd")) {
|
|
|
|
printk(TPACPI_ERR
|
|
|
|
"missing MHKA handler, "
|
|
|
|
"please report this to %s\n",
|
|
|
|
TPACPI_MAIL);
|
|
|
|
/* FN+F12, FN+F4, FN+F3 */
|
|
|
|
hotkey_all_mask = 0x080cU;
|
2007-07-19 10:45:30 +08:00
|
|
|
}
|
2008-06-04 10:36:10 +08:00
|
|
|
}
|
2007-07-19 10:45:30 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
/* hotkey_source_mask *must* be zero for
|
|
|
|
* the first hotkey_mask_get */
|
|
|
|
if (tp_features.hotkey_mask) {
|
|
|
|
res = hotkey_mask_get();
|
|
|
|
if (res)
|
|
|
|
goto err_exit;
|
|
|
|
|
|
|
|
hotkey_orig_mask = hotkey_mask;
|
|
|
|
res = add_many_to_attr_set(
|
|
|
|
hotkey_dev_attributes,
|
|
|
|
hotkey_mask_attributes,
|
|
|
|
ARRAY_SIZE(hotkey_mask_attributes));
|
|
|
|
if (res)
|
|
|
|
goto err_exit;
|
|
|
|
}
|
2007-07-19 10:45:31 +08:00
|
|
|
|
2008-01-08 23:02:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
2008-06-04 10:36:10 +08:00
|
|
|
if (tp_features.hotkey_mask) {
|
|
|
|
hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK
|
|
|
|
& ~hotkey_all_mask;
|
|
|
|
} else {
|
|
|
|
hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK;
|
|
|
|
}
|
2008-01-08 23:02:41 +08:00
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
2008-06-04 10:36:10 +08:00
|
|
|
"hotkey source mask 0x%08x, polling freq %d\n",
|
|
|
|
hotkey_source_mask, hotkey_poll_freq);
|
2008-01-08 23:02:41 +08:00
|
|
|
#endif
|
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_wlswemul) {
|
|
|
|
tp_features.hotkey_wlsw = 1;
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"radio switch emulation enabled\n");
|
|
|
|
} else
|
|
|
|
#endif
|
2008-06-04 10:36:10 +08:00
|
|
|
/* Not all thinkpads have a hardware radio switch */
|
|
|
|
if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) {
|
|
|
|
tp_features.hotkey_wlsw = 1;
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"radio switch found; radios are %s\n",
|
|
|
|
enabled(status, 0));
|
2008-07-21 20:15:49 +08:00
|
|
|
}
|
|
|
|
if (tp_features.hotkey_wlsw)
|
2008-06-04 10:36:10 +08:00
|
|
|
res = add_to_attr_set(hotkey_dev_attributes,
|
|
|
|
&dev_attr_hotkey_radio_sw.attr);
|
2007-07-19 10:45:31 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
/* For X41t, X60t, X61t Tablets... */
|
|
|
|
if (!res && acpi_evalf(hkey_handle, &status, "MHKG", "qd")) {
|
|
|
|
tp_features.hotkey_tablet = 1;
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"possible tablet mode switch found; "
|
|
|
|
"ThinkPad in %s mode\n",
|
|
|
|
(status & TP_HOTKEY_TABLET_MASK)?
|
|
|
|
"tablet" : "laptop");
|
|
|
|
res = add_to_attr_set(hotkey_dev_attributes,
|
|
|
|
&dev_attr_hotkey_tablet_mode.attr);
|
|
|
|
}
|
2008-02-16 12:17:58 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
if (!res)
|
|
|
|
res = register_attr_set_with_sysfs(
|
|
|
|
hotkey_dev_attributes,
|
|
|
|
&tpacpi_pdev->dev.kobj);
|
|
|
|
if (res)
|
|
|
|
goto err_exit;
|
2007-07-19 10:45:35 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
/* Set up key map */
|
2007-07-19 10:45:44 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE,
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!hotkey_keycode_map) {
|
|
|
|
printk(TPACPI_ERR
|
|
|
|
"failed to allocate memory for key map\n");
|
|
|
|
res = -ENOMEM;
|
|
|
|
goto err_exit;
|
|
|
|
}
|
2007-07-19 10:45:44 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
if (thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO) {
|
2009-04-04 12:25:51 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
2008-06-04 10:36:10 +08:00
|
|
|
"using Lenovo default hot key map\n");
|
|
|
|
memcpy(hotkey_keycode_map, &lenovo_keycode_map,
|
|
|
|
TPACPI_HOTKEY_MAP_SIZE);
|
|
|
|
} else {
|
2009-04-04 12:25:51 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
2008-06-04 10:36:10 +08:00
|
|
|
"using IBM default hot key map\n");
|
|
|
|
memcpy(hotkey_keycode_map, &ibm_keycode_map,
|
|
|
|
TPACPI_HOTKEY_MAP_SIZE);
|
|
|
|
}
|
2007-07-19 10:45:44 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
set_bit(EV_KEY, tpacpi_inputdev->evbit);
|
|
|
|
set_bit(EV_MSC, tpacpi_inputdev->evbit);
|
|
|
|
set_bit(MSC_SCAN, tpacpi_inputdev->mscbit);
|
|
|
|
tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE;
|
|
|
|
tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN;
|
|
|
|
tpacpi_inputdev->keycode = hotkey_keycode_map;
|
|
|
|
for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) {
|
|
|
|
if (hotkey_keycode_map[i] != KEY_RESERVED) {
|
|
|
|
set_bit(hotkey_keycode_map[i],
|
|
|
|
tpacpi_inputdev->keybit);
|
|
|
|
} else {
|
|
|
|
if (i < sizeof(hotkey_reserved_mask)*8)
|
|
|
|
hotkey_reserved_mask |= 1 << i;
|
2007-07-19 10:45:35 +08:00
|
|
|
}
|
2008-06-04 10:36:10 +08:00
|
|
|
}
|
2007-07-19 10:45:35 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
if (tp_features.hotkey_wlsw) {
|
|
|
|
set_bit(EV_SW, tpacpi_inputdev->evbit);
|
|
|
|
set_bit(SW_RFKILL_ALL, tpacpi_inputdev->swbit);
|
|
|
|
}
|
|
|
|
if (tp_features.hotkey_tablet) {
|
|
|
|
set_bit(EV_SW, tpacpi_inputdev->evbit);
|
|
|
|
set_bit(SW_TABLET_MODE, tpacpi_inputdev->swbit);
|
|
|
|
}
|
2007-07-19 10:45:38 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
/* Do not issue duplicate brightness change events to
|
|
|
|
* userspace */
|
|
|
|
if (!tp_features.bright_acpimode)
|
|
|
|
/* update bright_acpimode... */
|
|
|
|
tpacpi_check_std_acpi_brightness_support();
|
2008-04-26 12:02:17 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
if (tp_features.bright_acpimode) {
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"This ThinkPad has standard ACPI backlight "
|
|
|
|
"brightness control, supported by the ACPI "
|
|
|
|
"video driver\n");
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"Disabling thinkpad-acpi brightness events "
|
|
|
|
"by default...\n");
|
|
|
|
|
|
|
|
/* The hotkey_reserved_mask change below is not
|
|
|
|
* necessary while the keys are at KEY_RESERVED in the
|
|
|
|
* default map, but better safe than sorry, leave it
|
|
|
|
* here as a marker of what we have to do, especially
|
|
|
|
* when we finally become able to set this at runtime
|
|
|
|
* on response to X.org requests */
|
|
|
|
hotkey_reserved_mask |=
|
|
|
|
(1 << TP_ACPI_HOTKEYSCAN_FNHOME)
|
|
|
|
| (1 << TP_ACPI_HOTKEYSCAN_FNEND);
|
|
|
|
}
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
|
|
"enabling firmware HKEY event interface...\n");
|
2009-04-04 12:25:48 +08:00
|
|
|
res = hotkey_status_set(true);
|
2008-06-04 10:36:10 +08:00
|
|
|
if (res) {
|
|
|
|
hotkey_exit();
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
res = hotkey_mask_set(((hotkey_all_mask | hotkey_source_mask)
|
|
|
|
& ~hotkey_reserved_mask)
|
|
|
|
| hotkey_orig_mask);
|
|
|
|
if (res < 0 && res != -ENXIO) {
|
|
|
|
hotkey_exit();
|
|
|
|
return res;
|
|
|
|
}
|
2008-01-08 23:02:41 +08:00
|
|
|
|
2009-04-04 12:25:51 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
|
|
"legacy ibm/hotkey event reporting over procfs %s\n",
|
2008-06-04 10:36:10 +08:00
|
|
|
(hotkey_report_mode < 2) ?
|
|
|
|
"enabled" : "disabled");
|
2008-01-08 23:02:41 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
tpacpi_inputdev->open = &hotkey_inputdev_open;
|
|
|
|
tpacpi_inputdev->close = &hotkey_inputdev_close;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
hotkey_poll_setup_safe(1);
|
2008-07-21 20:15:49 +08:00
|
|
|
tpacpi_send_radiosw_update();
|
2008-06-04 10:36:10 +08:00
|
|
|
tpacpi_input_send_tabletsw();
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
return 0;
|
2008-01-08 23:02:41 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
err_exit:
|
|
|
|
delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj);
|
|
|
|
hotkey_dev_attributes = NULL;
|
2007-04-28 09:00:16 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
return (res < 0)? res : 1;
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
2009-01-11 13:01:05 +08:00
|
|
|
static bool hotkey_notify_hotkey(const u32 hkey,
|
|
|
|
bool *send_acpi_ev,
|
|
|
|
bool *ignore_acpi_ev)
|
|
|
|
{
|
|
|
|
/* 0x1000-0x1FFF: key presses */
|
|
|
|
unsigned int scancode = hkey & 0xfff;
|
|
|
|
*send_acpi_ev = true;
|
|
|
|
*ignore_acpi_ev = false;
|
|
|
|
|
|
|
|
if (scancode > 0 && scancode < 0x21) {
|
|
|
|
scancode--;
|
|
|
|
if (!(hotkey_source_mask & (1 << scancode))) {
|
|
|
|
tpacpi_input_send_key(scancode);
|
|
|
|
*send_acpi_ev = false;
|
|
|
|
} else {
|
|
|
|
*ignore_acpi_ev = true;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool hotkey_notify_wakeup(const u32 hkey,
|
|
|
|
bool *send_acpi_ev,
|
|
|
|
bool *ignore_acpi_ev)
|
|
|
|
{
|
|
|
|
/* 0x2000-0x2FFF: Wakeup reason */
|
|
|
|
*send_acpi_ev = true;
|
|
|
|
*ignore_acpi_ev = false;
|
|
|
|
|
|
|
|
switch (hkey) {
|
|
|
|
case 0x2304: /* suspend, undock */
|
|
|
|
case 0x2404: /* hibernation, undock */
|
|
|
|
hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
|
|
|
|
*ignore_acpi_ev = true;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 0x2305: /* suspend, bay eject */
|
|
|
|
case 0x2405: /* hibernation, bay eject */
|
|
|
|
hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
|
|
|
|
*ignore_acpi_ev = true;
|
|
|
|
break;
|
|
|
|
|
2009-01-11 13:01:06 +08:00
|
|
|
case 0x2313: /* Battery on critical low level (S3) */
|
|
|
|
case 0x2413: /* Battery on critical low level (S4) */
|
|
|
|
printk(TPACPI_ALERT
|
|
|
|
"EMERGENCY WAKEUP: battery almost empty\n");
|
|
|
|
/* how to auto-heal: */
|
|
|
|
/* 2313: woke up from S3, go to S4/S5 */
|
|
|
|
/* 2413: woke up from S4, go to S5 */
|
|
|
|
break;
|
|
|
|
|
2009-01-11 13:01:05 +08:00
|
|
|
default:
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) {
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"woke up due to a hot-unplug "
|
|
|
|
"request...\n");
|
|
|
|
hotkey_wakeup_reason_notify_change();
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool hotkey_notify_usrevent(const u32 hkey,
|
|
|
|
bool *send_acpi_ev,
|
|
|
|
bool *ignore_acpi_ev)
|
|
|
|
{
|
|
|
|
/* 0x5000-0x5FFF: human interface helpers */
|
|
|
|
*send_acpi_ev = true;
|
|
|
|
*ignore_acpi_ev = false;
|
|
|
|
|
|
|
|
switch (hkey) {
|
|
|
|
case 0x5010: /* Lenovo new BIOS: brightness changed */
|
|
|
|
case 0x500b: /* X61t: tablet pen inserted into bay */
|
|
|
|
case 0x500c: /* X61t: tablet pen removed from bay */
|
|
|
|
return true;
|
|
|
|
|
|
|
|
case 0x5009: /* X41t-X61t: swivel up (tablet mode) */
|
|
|
|
case 0x500a: /* X41t-X61t: swivel down (normal mode) */
|
|
|
|
tpacpi_input_send_tabletsw();
|
|
|
|
hotkey_tablet_mode_notify_change();
|
|
|
|
*send_acpi_ev = false;
|
|
|
|
return true;
|
|
|
|
|
|
|
|
case 0x5001:
|
|
|
|
case 0x5002:
|
|
|
|
/* LID switch events. Do not propagate */
|
|
|
|
*ignore_acpi_ev = true;
|
|
|
|
return true;
|
|
|
|
|
|
|
|
default:
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-01-11 13:01:06 +08:00
|
|
|
static bool hotkey_notify_thermal(const u32 hkey,
|
|
|
|
bool *send_acpi_ev,
|
|
|
|
bool *ignore_acpi_ev)
|
|
|
|
{
|
|
|
|
/* 0x6000-0x6FFF: thermal alarms */
|
|
|
|
*send_acpi_ev = true;
|
|
|
|
*ignore_acpi_ev = false;
|
|
|
|
|
|
|
|
switch (hkey) {
|
|
|
|
case 0x6011:
|
|
|
|
printk(TPACPI_CRIT
|
|
|
|
"THERMAL ALARM: battery is too hot!\n");
|
|
|
|
/* recommended action: warn user through gui */
|
|
|
|
return true;
|
|
|
|
case 0x6012:
|
|
|
|
printk(TPACPI_ALERT
|
|
|
|
"THERMAL EMERGENCY: battery is extremely hot!\n");
|
|
|
|
/* recommended action: immediate sleep/hibernate */
|
|
|
|
return true;
|
|
|
|
case 0x6021:
|
|
|
|
printk(TPACPI_CRIT
|
|
|
|
"THERMAL ALARM: "
|
|
|
|
"a sensor reports something is too hot!\n");
|
|
|
|
/* recommended action: warn user through gui, that */
|
|
|
|
/* some internal component is too hot */
|
|
|
|
return true;
|
|
|
|
case 0x6022:
|
|
|
|
printk(TPACPI_ALERT
|
|
|
|
"THERMAL EMERGENCY: "
|
|
|
|
"a sensor reports something is extremely hot!\n");
|
|
|
|
/* recommended action: immediate sleep/hibernate */
|
|
|
|
return true;
|
2009-01-11 13:01:09 +08:00
|
|
|
case 0x6030:
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"EC reports that Thermal Table has changed\n");
|
|
|
|
/* recommended action: do nothing, we don't have
|
|
|
|
* Lenovo ATM information */
|
|
|
|
return true;
|
2009-01-11 13:01:06 +08:00
|
|
|
default:
|
|
|
|
printk(TPACPI_ALERT
|
|
|
|
"THERMAL ALERT: unknown thermal alarm received\n");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
|
|
|
|
{
|
2007-07-19 10:45:35 +08:00
|
|
|
u32 hkey;
|
2009-01-11 13:01:05 +08:00
|
|
|
bool send_acpi_ev;
|
|
|
|
bool ignore_acpi_ev;
|
|
|
|
bool known_ev;
|
2007-09-23 22:39:04 +08:00
|
|
|
|
|
|
|
if (event != 0x80) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"unknown HKEY notification event %d\n", event);
|
2007-09-23 22:39:04 +08:00
|
|
|
/* forward it to userspace, maybe it knows how to handle it */
|
2008-01-08 23:02:49 +08:00
|
|
|
acpi_bus_generate_netlink_event(
|
|
|
|
ibm->acpi->device->pnp.device_class,
|
2009-01-11 13:00:59 +08:00
|
|
|
dev_name(&ibm->acpi->device->dev),
|
2008-01-08 23:02:49 +08:00
|
|
|
event, 0);
|
2007-09-23 22:39:04 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "failed to retrieve HKEY event\n");
|
2007-09-23 22:39:04 +08:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (hkey == 0) {
|
|
|
|
/* queue empty */
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2009-01-11 13:01:05 +08:00
|
|
|
send_acpi_ev = true;
|
|
|
|
ignore_acpi_ev = false;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
switch (hkey >> 12) {
|
|
|
|
case 1:
|
|
|
|
/* 0x1000-0x1FFF: key presses */
|
2009-01-11 13:01:05 +08:00
|
|
|
known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev,
|
|
|
|
&ignore_acpi_ev);
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
break;
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
case 2:
|
2009-01-11 13:01:05 +08:00
|
|
|
/* 0x2000-0x2FFF: Wakeup reason */
|
|
|
|
known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev,
|
|
|
|
&ignore_acpi_ev);
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
break;
|
|
|
|
case 3:
|
2009-01-11 13:01:05 +08:00
|
|
|
/* 0x3000-0x3FFF: bay-related wakeups */
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
if (hkey == 0x3003) {
|
|
|
|
hotkey_autosleep_ack = 1;
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"bay ejected\n");
|
2008-01-08 23:02:55 +08:00
|
|
|
hotkey_wakeup_hotunplug_complete_notify_change();
|
2009-01-11 13:01:05 +08:00
|
|
|
known_ev = true;
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
} else {
|
2009-01-11 13:01:05 +08:00
|
|
|
known_ev = false;
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 4:
|
2009-01-11 13:01:05 +08:00
|
|
|
/* 0x4000-0x4FFF: dock-related wakeups */
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
if (hkey == 0x4003) {
|
|
|
|
hotkey_autosleep_ack = 1;
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"undocked\n");
|
2008-01-08 23:02:55 +08:00
|
|
|
hotkey_wakeup_hotunplug_complete_notify_change();
|
2009-01-11 13:01:05 +08:00
|
|
|
known_ev = true;
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
} else {
|
2009-01-11 13:01:05 +08:00
|
|
|
known_ev = false;
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
}
|
|
|
|
break;
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
case 5:
|
2008-01-08 23:02:53 +08:00
|
|
|
/* 0x5000-0x5FFF: human interface helpers */
|
2009-01-11 13:01:05 +08:00
|
|
|
known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev,
|
|
|
|
&ignore_acpi_ev);
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
break;
|
2009-01-11 13:01:06 +08:00
|
|
|
case 6:
|
|
|
|
/* 0x6000-0x6FFF: thermal alarms */
|
|
|
|
known_ev = hotkey_notify_thermal(hkey, &send_acpi_ev,
|
|
|
|
&ignore_acpi_ev);
|
|
|
|
break;
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
case 7:
|
|
|
|
/* 0x7000-0x7FFF: misc */
|
|
|
|
if (tp_features.hotkey_wlsw && hkey == 0x7000) {
|
2008-07-21 20:15:49 +08:00
|
|
|
tpacpi_send_radiosw_update();
|
2008-01-08 23:02:51 +08:00
|
|
|
send_acpi_ev = 0;
|
2009-01-11 13:01:05 +08:00
|
|
|
known_ev = true;
|
2007-07-19 10:45:35 +08:00
|
|
|
break;
|
|
|
|
}
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
/* fallthrough to default */
|
|
|
|
default:
|
2009-01-11 13:01:05 +08:00
|
|
|
known_ev = false;
|
2008-01-08 23:02:51 +08:00
|
|
|
}
|
2009-01-11 13:01:05 +08:00
|
|
|
if (!known_ev) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"unhandled HKEY event 0x%04x\n", hkey);
|
2009-01-11 13:01:07 +08:00
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"please report the conditions when this "
|
|
|
|
"event happened to %s\n", TPACPI_MAIL);
|
2007-07-19 10:45:35 +08:00
|
|
|
}
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
|
2007-09-23 22:39:04 +08:00
|
|
|
/* Legacy events */
|
2008-01-08 23:02:49 +08:00
|
|
|
if (!ignore_acpi_ev &&
|
|
|
|
(send_acpi_ev || hotkey_report_mode < 2)) {
|
|
|
|
acpi_bus_generate_proc_event(ibm->acpi->device,
|
|
|
|
event, hkey);
|
2007-09-23 22:39:05 +08:00
|
|
|
}
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
|
2007-09-23 22:39:04 +08:00
|
|
|
/* netlink events */
|
2007-09-23 22:39:05 +08:00
|
|
|
if (!ignore_acpi_ev && send_acpi_ev) {
|
2008-01-08 23:02:49 +08:00
|
|
|
acpi_bus_generate_netlink_event(
|
|
|
|
ibm->acpi->device->pnp.device_class,
|
2009-01-11 13:00:59 +08:00
|
|
|
dev_name(&ibm->acpi->device->dev),
|
2008-01-08 23:02:49 +08:00
|
|
|
event, hkey);
|
2007-09-23 22:39:04 +08:00
|
|
|
}
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
static void hotkey_suspend(pm_message_t state)
|
|
|
|
{
|
|
|
|
/* Do these on suspend, we get the events on early resume! */
|
|
|
|
hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE;
|
|
|
|
hotkey_autosleep_ack = 0;
|
|
|
|
}
|
|
|
|
|
2007-07-19 10:45:38 +08:00
|
|
|
static void hotkey_resume(void)
|
|
|
|
{
|
2008-10-19 01:23:55 +08:00
|
|
|
tpacpi_disable_brightness_delay();
|
|
|
|
|
2008-01-08 23:02:39 +08:00
|
|
|
if (hotkey_mask_get())
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"error while trying to read hot key mask "
|
|
|
|
"from firmware\n");
|
2008-07-21 20:15:49 +08:00
|
|
|
tpacpi_send_radiosw_update();
|
2008-02-16 12:17:58 +08:00
|
|
|
hotkey_tablet_mode_notify_change();
|
2008-01-08 23:02:55 +08:00
|
|
|
hotkey_wakeup_reason_notify_change();
|
|
|
|
hotkey_wakeup_hotunplug_complete_notify_change();
|
2008-01-08 23:02:41 +08:00
|
|
|
hotkey_poll_setup_safe(0);
|
2007-07-19 10:45:38 +08:00
|
|
|
}
|
|
|
|
|
2007-04-28 09:00:16 +08:00
|
|
|
/* procfs -------------------------------------------------------------- */
|
2005-08-17 12:00:00 +08:00
|
|
|
static int hotkey_read(char *p)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2007-07-19 10:45:29 +08:00
|
|
|
int res, status;
|
2005-04-17 06:20:36 +08:00
|
|
|
int len = 0;
|
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.hotkey) {
|
2005-08-17 12:00:00 +08:00
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
2007-10-31 03:46:24 +08:00
|
|
|
return -ERESTARTSYS;
|
2008-01-08 23:02:39 +08:00
|
|
|
res = hotkey_status_get(&status);
|
|
|
|
if (!res)
|
|
|
|
res = hotkey_mask_get();
|
2007-04-24 22:48:15 +08:00
|
|
|
mutex_unlock(&hotkey_mutex);
|
2007-04-21 22:08:39 +08:00
|
|
|
if (res)
|
|
|
|
return res;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 0));
|
2007-04-21 22:08:36 +08:00
|
|
|
if (tp_features.hotkey_mask) {
|
2008-01-08 23:02:39 +08:00
|
|
|
len += sprintf(p + len, "mask:\t\t0x%08x\n", hotkey_mask);
|
2005-04-17 06:20:36 +08:00
|
|
|
len += sprintf(p + len,
|
|
|
|
"commands:\tenable, disable, reset, <mask>\n");
|
|
|
|
} else {
|
|
|
|
len += sprintf(p + len, "mask:\t\tnot supported\n");
|
|
|
|
len += sprintf(p + len, "commands:\tenable, disable, reset\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2009-04-14 10:44:10 +08:00
|
|
|
static void hotkey_enabledisable_warn(bool enable)
|
2009-04-04 12:25:48 +08:00
|
|
|
{
|
|
|
|
tpacpi_log_usertask("procfs hotkey enable/disable");
|
2009-04-14 10:44:10 +08:00
|
|
|
if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable),
|
|
|
|
TPACPI_WARN
|
|
|
|
"hotkey enable/disable functionality has been "
|
|
|
|
"removed from the driver. Hotkeys are always "
|
|
|
|
"enabled\n"))
|
|
|
|
printk(TPACPI_ERR
|
|
|
|
"Please remove the hotkey=enable module "
|
|
|
|
"parameter, it is deprecated. Hotkeys are always "
|
|
|
|
"enabled\n");
|
2009-04-04 12:25:48 +08:00
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int hotkey_write(char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2009-04-04 12:25:48 +08:00
|
|
|
int res;
|
2007-07-19 10:45:29 +08:00
|
|
|
u32 mask;
|
2005-04-17 06:20:36 +08:00
|
|
|
char *cmd;
|
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.hotkey)
|
2005-04-17 06:20:36 +08:00
|
|
|
return -ENODEV;
|
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
2007-10-31 03:46:24 +08:00
|
|
|
return -ERESTARTSYS;
|
2007-04-24 22:48:15 +08:00
|
|
|
|
2008-01-08 23:02:39 +08:00
|
|
|
mask = hotkey_mask;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-24 22:48:15 +08:00
|
|
|
res = 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (strlencmp(cmd, "enable") == 0) {
|
2009-04-14 10:44:10 +08:00
|
|
|
hotkey_enabledisable_warn(1);
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "disable") == 0) {
|
2009-04-14 10:44:10 +08:00
|
|
|
hotkey_enabledisable_warn(0);
|
2009-04-04 12:25:48 +08:00
|
|
|
res = -EPERM;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "reset") == 0) {
|
2005-08-17 12:00:00 +08:00
|
|
|
mask = hotkey_orig_mask;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (sscanf(cmd, "0x%x", &mask) == 1) {
|
|
|
|
/* mask set */
|
|
|
|
} else if (sscanf(cmd, "%x", &mask) == 1) {
|
|
|
|
/* mask set */
|
2007-04-24 22:48:15 +08:00
|
|
|
} else {
|
|
|
|
res = -EINVAL;
|
|
|
|
goto errexit;
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2009-04-04 12:25:51 +08:00
|
|
|
|
|
|
|
if (!res)
|
|
|
|
tpacpi_disclose_usertask("procfs hotkey",
|
|
|
|
"set mask to 0x%08x\n", mask);
|
|
|
|
|
2008-01-08 23:02:39 +08:00
|
|
|
if (!res && mask != hotkey_mask)
|
|
|
|
res = hotkey_mask_set(mask);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-24 22:48:15 +08:00
|
|
|
errexit:
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
|
|
|
return res;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-07-23 20:44:41 +08:00
|
|
|
static const struct acpi_device_id ibm_htk_device_ids[] = {
|
2008-01-08 23:02:48 +08:00
|
|
|
{TPACPI_ACPI_HKEY_HID, 0},
|
2007-07-23 20:44:41 +08:00
|
|
|
{"", 0},
|
|
|
|
};
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = {
|
2007-07-23 20:44:41 +08:00
|
|
|
.hid = ibm_htk_device_ids,
|
2007-04-21 22:08:37 +08:00
|
|
|
.notify = hotkey_notify,
|
|
|
|
.handle = &hkey_handle,
|
|
|
|
.type = ACPI_DEVICE_NOTIFY,
|
|
|
|
};
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct hotkey_driver_data = {
|
|
|
|
.name = "hotkey",
|
|
|
|
.read = hotkey_read,
|
|
|
|
.write = hotkey_write,
|
|
|
|
.exit = hotkey_exit,
|
2007-07-19 10:45:38 +08:00
|
|
|
.resume = hotkey_resume,
|
ACPI: thinkpad-acpi: wakeup on hotunplug reporting
Handle some HKEY events that the firmware uses to report the reason for a
wake up, and to also notify that the system could go back to sleep (if it
woke up just to eject something from the bay, or to undock).
The driver will report the reason of the last wake up in the sysfs
attribute "wakeup_reason": 0 for "none, unknown, or standard ACPI wake up
event", 1 for "bay ejection request" and 2 for "undock request".
The firmware will also report if the operation that triggered the wake up
has been completed, by issuing an HKEY 0x3003 or 0x4003 event. If the
operation fails, no event is sent. When such a hotunplug sucessfull
notification is issued, the driver sets the attribute
"wakeup_hotunplug_complete" to 1.
While the firmware does tell us whether we are waking from a suspend or
hibernation scenario, the Linux way of hibernating makes this information
not reliable, and therefore it is not reported.
The idea is that if any of these attributes are non-zero, userspace might
want to do something at the end of the "wake up from sleep" procedures,
such as offering to send the machine back into sleep as soon as it is safe
to do so.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-08 23:02:52 +08:00
|
|
|
.suspend = hotkey_suspend,
|
2007-04-21 22:08:37 +08:00
|
|
|
.acpi = &ibm_hotkey_acpidriver,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Bluetooth subdriver
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
enum {
|
|
|
|
/* ACPI GBDC/SBDC bits */
|
|
|
|
TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */
|
|
|
|
TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */
|
2009-01-11 13:01:01 +08:00
|
|
|
TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume:
|
|
|
|
off / last state */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum {
|
|
|
|
/* ACPI \BLTH commands */
|
|
|
|
TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */
|
|
|
|
TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */
|
|
|
|
TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */
|
|
|
|
TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */
|
|
|
|
TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */
|
2008-01-08 23:02:44 +08:00
|
|
|
};
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
#define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw"
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
static struct rfkill *tpacpi_bluetooth_rfkill;
|
|
|
|
|
2009-01-11 13:01:01 +08:00
|
|
|
static void bluetooth_suspend(pm_message_t state)
|
|
|
|
{
|
|
|
|
/* Try to make sure radio will resume powered off */
|
2009-04-04 12:25:50 +08:00
|
|
|
if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd",
|
|
|
|
TP_ACPI_BLTH_PWR_OFF_ON_RESUME))
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"bluetooth power down on resume request failed\n");
|
2009-01-11 13:01:01 +08:00
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
static int bluetooth_get_radiosw(void)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tp_features.bluetooth)
|
|
|
|
return -ENODEV;
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
/* WLSW overrides bluetooth in firmware/hardware, reflect that */
|
|
|
|
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
|
2008-07-21 20:15:51 +08:00
|
|
|
return RFKILL_STATE_HARD_BLOCKED;
|
2008-07-21 20:15:50 +08:00
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_bluetoothemul)
|
|
|
|
return (tpacpi_bluetooth_emulstate) ?
|
|
|
|
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
|
|
|
|
#endif
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
if (!acpi_evalf(hkey_handle, &status, "GBDC", "d"))
|
|
|
|
return -EIO;
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ?
|
|
|
|
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
|
2008-07-21 20:15:50 +08:00
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
static void bluetooth_update_rfk(void)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tpacpi_bluetooth_rfkill)
|
|
|
|
return;
|
|
|
|
|
|
|
|
status = bluetooth_get_radiosw();
|
|
|
|
if (status < 0)
|
|
|
|
return;
|
|
|
|
rfkill_force_state(tpacpi_bluetooth_rfkill, status);
|
2009-04-04 12:25:50 +08:00
|
|
|
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"forced rfkill state to %d\n",
|
|
|
|
status);
|
2008-07-21 20:15:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int bluetooth_set_radiosw(int radio_on, int update_rfk)
|
2008-07-21 20:15:50 +08:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tp_features.bluetooth)
|
|
|
|
return -ENODEV;
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
/* WLSW overrides bluetooth in firmware/hardware, but there is no
|
|
|
|
* reason to risk weird behaviour. */
|
|
|
|
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status
|
|
|
|
&& radio_on)
|
|
|
|
return -EPERM;
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"will %s bluetooth\n", radio_on ? "enable" : "disable");
|
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_bluetoothemul) {
|
|
|
|
tpacpi_bluetooth_emulstate = !!radio_on;
|
|
|
|
if (update_rfk)
|
|
|
|
bluetooth_update_rfk();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-01-11 13:01:01 +08:00
|
|
|
/* We make sure to keep TP_ACPI_BLUETOOTH_RESUMECTRL off */
|
2008-07-21 20:15:50 +08:00
|
|
|
if (radio_on)
|
2009-01-11 13:01:01 +08:00
|
|
|
status = TP_ACPI_BLUETOOTH_RADIOSSW;
|
2008-07-21 20:15:50 +08:00
|
|
|
else
|
2009-01-11 13:01:01 +08:00
|
|
|
status = 0;
|
2008-07-21 20:15:50 +08:00
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status))
|
|
|
|
return -EIO;
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
if (update_rfk)
|
|
|
|
bluetooth_update_rfk();
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
return 0;
|
|
|
|
}
|
2008-01-08 23:02:44 +08:00
|
|
|
|
2007-04-28 09:00:17 +08:00
|
|
|
/* sysfs bluetooth enable ---------------------------------------------- */
|
|
|
|
static ssize_t bluetooth_enable_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
2009-04-04 12:25:47 +08:00
|
|
|
printk_deprecated_rfkill_attribute("bluetooth_enable");
|
|
|
|
|
2007-04-28 09:00:17 +08:00
|
|
|
status = bluetooth_get_radiosw();
|
|
|
|
if (status < 0)
|
|
|
|
return status;
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n",
|
|
|
|
(status == RFKILL_STATE_UNBLOCKED) ? 1 : 0);
|
2007-04-28 09:00:17 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t bluetooth_enable_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
int res;
|
|
|
|
|
2009-04-04 12:25:47 +08:00
|
|
|
printk_deprecated_rfkill_attribute("bluetooth_enable");
|
|
|
|
|
2007-04-28 09:00:17 +08:00
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
tpacpi_disclose_usertask("bluetooth_enable", "set to %ld\n", t);
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
res = bluetooth_set_radiosw(t, 1);
|
2007-04-28 09:00:17 +08:00
|
|
|
|
|
|
|
return (res) ? res : count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_bluetooth_enable =
|
2007-05-31 07:50:14 +08:00
|
|
|
__ATTR(bluetooth_enable, S_IWUSR | S_IRUGO,
|
2007-04-28 09:00:17 +08:00
|
|
|
bluetooth_enable_show, bluetooth_enable_store);
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
|
|
|
static struct attribute *bluetooth_attributes[] = {
|
|
|
|
&dev_attr_bluetooth_enable.attr,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group bluetooth_attr_group = {
|
|
|
|
.attrs = bluetooth_attributes,
|
|
|
|
};
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
static int tpacpi_bluetooth_rfk_get(void *data, enum rfkill_state *state)
|
|
|
|
{
|
|
|
|
int bts = bluetooth_get_radiosw();
|
|
|
|
|
|
|
|
if (bts < 0)
|
|
|
|
return bts;
|
|
|
|
|
|
|
|
*state = bts;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int tpacpi_bluetooth_rfk_set(void *data, enum rfkill_state state)
|
|
|
|
{
|
2009-04-04 12:25:50 +08:00
|
|
|
dbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"request to change radio state to %d\n", state);
|
2008-07-21 20:15:51 +08:00
|
|
|
return bluetooth_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
|
|
|
|
}
|
|
|
|
|
2009-01-11 13:01:02 +08:00
|
|
|
static void bluetooth_shutdown(void)
|
|
|
|
{
|
|
|
|
/* Order firmware to save current state to NVRAM */
|
|
|
|
if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd",
|
|
|
|
TP_ACPI_BLTH_SAVE_STATE))
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"failed to save bluetooth state to NVRAM\n");
|
2009-04-04 12:25:50 +08:00
|
|
|
else
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"bluestooth state saved to NVRAM\n");
|
2009-01-11 13:01:02 +08:00
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
static void bluetooth_exit(void)
|
|
|
|
{
|
2009-01-11 13:01:02 +08:00
|
|
|
bluetooth_shutdown();
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
if (tpacpi_bluetooth_rfkill)
|
|
|
|
rfkill_unregister(tpacpi_bluetooth_rfkill);
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
|
|
|
|
&bluetooth_attr_group);
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init bluetooth_init(struct ibm_init_struct *iibm)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2007-04-28 09:00:17 +08:00
|
|
|
int res;
|
2007-04-21 22:08:40 +08:00
|
|
|
int status = 0;
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
|
|
"initializing bluetooth subdriver\n");
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
/* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
|
|
|
|
G4x, R30, R31, R40e, R50e, T20-22, X20-21 */
|
2007-04-21 22:08:36 +08:00
|
|
|
tp_features.bluetooth = hkey_handle &&
|
2007-04-21 22:08:40 +08:00
|
|
|
acpi_evalf(hkey_handle, &status, "GBDC", "qd");
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
|
|
"bluetooth is %s, status 0x%02x\n",
|
2007-04-21 22:08:40 +08:00
|
|
|
str_supported(tp_features.bluetooth),
|
|
|
|
status);
|
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_bluetoothemul) {
|
|
|
|
tp_features.bluetooth = 1;
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"bluetooth switch emulation enabled\n");
|
|
|
|
} else
|
|
|
|
#endif
|
2008-07-21 20:15:49 +08:00
|
|
|
if (tp_features.bluetooth &&
|
|
|
|
!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
|
|
|
|
/* no bluetooth hardware present in system */
|
|
|
|
tp_features.bluetooth = 0;
|
2009-04-04 12:25:50 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
2008-07-21 20:15:49 +08:00
|
|
|
"bluetooth hardware not installed\n");
|
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
if (!tp_features.bluetooth)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
|
2008-07-21 20:15:49 +08:00
|
|
|
&bluetooth_attr_group);
|
2008-07-21 20:15:51 +08:00
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
|
|
|
|
res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID,
|
|
|
|
&tpacpi_bluetooth_rfkill,
|
|
|
|
RFKILL_TYPE_BLUETOOTH,
|
2009-04-04 12:25:50 +08:00
|
|
|
TPACPI_RFK_BLUETOOTH_SW_NAME,
|
2009-01-11 13:01:03 +08:00
|
|
|
true,
|
2008-07-21 20:15:51 +08:00
|
|
|
tpacpi_bluetooth_rfk_set,
|
|
|
|
tpacpi_bluetooth_rfk_get);
|
|
|
|
if (res) {
|
|
|
|
bluetooth_exit();
|
|
|
|
return res;
|
2007-04-21 22:08:40 +08:00
|
|
|
}
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-04-28 09:00:17 +08:00
|
|
|
/* procfs -------------------------------------------------------------- */
|
2005-08-17 12:00:00 +08:00
|
|
|
static int bluetooth_read(char *p)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int len = 0;
|
2007-04-21 22:08:40 +08:00
|
|
|
int status = bluetooth_get_radiosw();
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.bluetooth)
|
2005-04-17 06:20:36 +08:00
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
else {
|
2007-04-21 22:08:40 +08:00
|
|
|
len += sprintf(p + len, "status:\t\t%s\n",
|
2008-07-21 20:15:51 +08:00
|
|
|
(status == RFKILL_STATE_UNBLOCKED) ?
|
|
|
|
"enabled" : "disabled");
|
2005-04-17 06:20:36 +08:00
|
|
|
len += sprintf(p + len, "commands:\tenable, disable\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int bluetooth_write(char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
char *cmd;
|
2009-04-04 12:25:50 +08:00
|
|
|
int state = -1;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.bluetooth)
|
2005-08-17 12:00:00 +08:00
|
|
|
return -ENODEV;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (strlencmp(cmd, "enable") == 0) {
|
2009-04-04 12:25:50 +08:00
|
|
|
state = 1;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "disable") == 0) {
|
2009-04-04 12:25:50 +08:00
|
|
|
state = 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
if (state != -1) {
|
|
|
|
tpacpi_disclose_usertask("procfs bluetooth",
|
|
|
|
"attempt to %s\n",
|
|
|
|
state ? "enable" : "disable");
|
|
|
|
bluetooth_set_radiosw(state, 1);
|
|
|
|
}
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct bluetooth_driver_data = {
|
|
|
|
.name = "bluetooth",
|
|
|
|
.read = bluetooth_read,
|
|
|
|
.write = bluetooth_write,
|
2007-04-28 09:00:17 +08:00
|
|
|
.exit = bluetooth_exit,
|
2009-01-11 13:01:01 +08:00
|
|
|
.suspend = bluetooth_suspend,
|
2009-01-11 13:01:02 +08:00
|
|
|
.shutdown = bluetooth_shutdown,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Wan subdriver
|
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
enum {
|
|
|
|
/* ACPI GWAN/SWAN bits */
|
|
|
|
TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */
|
|
|
|
TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */
|
2009-01-11 13:01:01 +08:00
|
|
|
TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume:
|
|
|
|
off / last state */
|
2008-01-08 23:02:44 +08:00
|
|
|
};
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
#define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw"
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
static struct rfkill *tpacpi_wan_rfkill;
|
|
|
|
|
2009-01-11 13:01:01 +08:00
|
|
|
static void wan_suspend(pm_message_t state)
|
|
|
|
{
|
|
|
|
/* Try to make sure radio will resume powered off */
|
2009-04-04 12:25:50 +08:00
|
|
|
if (!acpi_evalf(NULL, NULL, "\\WGSV", "qvd",
|
|
|
|
TP_ACPI_WGSV_PWR_OFF_ON_RESUME))
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"WWAN power down on resume request failed\n");
|
2009-01-11 13:01:01 +08:00
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
static int wan_get_radiosw(void)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tp_features.wan)
|
|
|
|
return -ENODEV;
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
/* WLSW overrides WWAN in firmware/hardware, reflect that */
|
|
|
|
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
|
2008-07-21 20:15:51 +08:00
|
|
|
return RFKILL_STATE_HARD_BLOCKED;
|
2008-07-21 20:15:50 +08:00
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_wwanemul)
|
|
|
|
return (tpacpi_wwan_emulstate) ?
|
|
|
|
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
|
|
|
|
#endif
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
if (!acpi_evalf(hkey_handle, &status, "GWAN", "d"))
|
|
|
|
return -EIO;
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ?
|
|
|
|
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
|
2008-07-21 20:15:50 +08:00
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
static void wan_update_rfk(void)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tpacpi_wan_rfkill)
|
|
|
|
return;
|
|
|
|
|
|
|
|
status = wan_get_radiosw();
|
|
|
|
if (status < 0)
|
|
|
|
return;
|
|
|
|
rfkill_force_state(tpacpi_wan_rfkill, status);
|
2009-04-04 12:25:50 +08:00
|
|
|
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"forced rfkill state to %d\n",
|
|
|
|
status);
|
2008-07-21 20:15:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int wan_set_radiosw(int radio_on, int update_rfk)
|
2008-07-21 20:15:50 +08:00
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tp_features.wan)
|
|
|
|
return -ENODEV;
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
/* WLSW overrides bluetooth in firmware/hardware, but there is no
|
|
|
|
* reason to risk weird behaviour. */
|
|
|
|
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status
|
|
|
|
&& radio_on)
|
|
|
|
return -EPERM;
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"will %s WWAN\n", radio_on ? "enable" : "disable");
|
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_wwanemul) {
|
|
|
|
tpacpi_wwan_emulstate = !!radio_on;
|
|
|
|
if (update_rfk)
|
|
|
|
wan_update_rfk();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-01-11 13:01:01 +08:00
|
|
|
/* We make sure to keep TP_ACPI_WANCARD_RESUMECTRL off */
|
2008-07-21 20:15:50 +08:00
|
|
|
if (radio_on)
|
2009-01-11 13:01:01 +08:00
|
|
|
status = TP_ACPI_WANCARD_RADIOSSW;
|
2008-07-21 20:15:50 +08:00
|
|
|
else
|
2009-01-11 13:01:01 +08:00
|
|
|
status = 0;
|
2008-07-21 20:15:50 +08:00
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status))
|
|
|
|
return -EIO;
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
if (update_rfk)
|
|
|
|
wan_update_rfk();
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
return 0;
|
|
|
|
}
|
2008-01-08 23:02:44 +08:00
|
|
|
|
2007-04-28 09:00:17 +08:00
|
|
|
/* sysfs wan enable ---------------------------------------------------- */
|
|
|
|
static ssize_t wan_enable_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
2009-04-04 12:25:47 +08:00
|
|
|
printk_deprecated_rfkill_attribute("wwan_enable");
|
|
|
|
|
2007-04-28 09:00:17 +08:00
|
|
|
status = wan_get_radiosw();
|
|
|
|
if (status < 0)
|
|
|
|
return status;
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n",
|
|
|
|
(status == RFKILL_STATE_UNBLOCKED) ? 1 : 0);
|
2007-04-28 09:00:17 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t wan_enable_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
int res;
|
|
|
|
|
2009-04-04 12:25:47 +08:00
|
|
|
printk_deprecated_rfkill_attribute("wwan_enable");
|
|
|
|
|
2007-04-28 09:00:17 +08:00
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
tpacpi_disclose_usertask("wwan_enable", "set to %ld\n", t);
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
res = wan_set_radiosw(t, 1);
|
2007-04-28 09:00:17 +08:00
|
|
|
|
|
|
|
return (res) ? res : count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_wan_enable =
|
2007-05-31 07:50:14 +08:00
|
|
|
__ATTR(wwan_enable, S_IWUSR | S_IRUGO,
|
2007-04-28 09:00:17 +08:00
|
|
|
wan_enable_show, wan_enable_store);
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
|
|
|
static struct attribute *wan_attributes[] = {
|
|
|
|
&dev_attr_wan_enable.attr,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group wan_attr_group = {
|
|
|
|
.attrs = wan_attributes,
|
|
|
|
};
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
static int tpacpi_wan_rfk_get(void *data, enum rfkill_state *state)
|
|
|
|
{
|
|
|
|
int wans = wan_get_radiosw();
|
|
|
|
|
|
|
|
if (wans < 0)
|
|
|
|
return wans;
|
|
|
|
|
|
|
|
*state = wans;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int tpacpi_wan_rfk_set(void *data, enum rfkill_state state)
|
|
|
|
{
|
2009-04-04 12:25:50 +08:00
|
|
|
dbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"request to change radio state to %d\n", state);
|
2008-07-21 20:15:51 +08:00
|
|
|
return wan_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
|
|
|
|
}
|
|
|
|
|
2009-01-11 13:01:02 +08:00
|
|
|
static void wan_shutdown(void)
|
|
|
|
{
|
|
|
|
/* Order firmware to save current state to NVRAM */
|
|
|
|
if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd",
|
|
|
|
TP_ACPI_WGSV_SAVE_STATE))
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"failed to save WWAN state to NVRAM\n");
|
2009-04-04 12:25:50 +08:00
|
|
|
else
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"WWAN state saved to NVRAM\n");
|
2009-01-11 13:01:02 +08:00
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
static void wan_exit(void)
|
|
|
|
{
|
2009-01-11 13:01:02 +08:00
|
|
|
wan_shutdown();
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
if (tpacpi_wan_rfkill)
|
|
|
|
rfkill_unregister(tpacpi_wan_rfkill);
|
|
|
|
|
2008-07-21 20:15:50 +08:00
|
|
|
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
|
|
|
|
&wan_attr_group);
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init wan_init(struct ibm_init_struct *iibm)
|
2006-06-02 05:41:00 +08:00
|
|
|
{
|
2007-04-28 09:00:17 +08:00
|
|
|
int res;
|
2007-04-21 22:08:40 +08:00
|
|
|
int status = 0;
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
|
|
"initializing wan subdriver\n");
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
tp_features.wan = hkey_handle &&
|
2007-04-21 22:08:40 +08:00
|
|
|
acpi_evalf(hkey_handle, &status, "GWAN", "qd");
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
|
|
"wan is %s, status 0x%02x\n",
|
2007-04-21 22:08:40 +08:00
|
|
|
str_supported(tp_features.wan),
|
|
|
|
status);
|
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_wwanemul) {
|
|
|
|
tp_features.wan = 1;
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"wwan switch emulation enabled\n");
|
|
|
|
} else
|
|
|
|
#endif
|
2008-07-21 20:15:49 +08:00
|
|
|
if (tp_features.wan &&
|
|
|
|
!(status & TP_ACPI_WANCARD_HWPRESENT)) {
|
|
|
|
/* no wan hardware present in system */
|
|
|
|
tp_features.wan = 0;
|
2009-04-04 12:25:50 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
2008-07-21 20:15:49 +08:00
|
|
|
"wan hardware not installed\n");
|
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
if (!tp_features.wan)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
|
2008-07-21 20:15:49 +08:00
|
|
|
&wan_attr_group);
|
2008-07-21 20:15:51 +08:00
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
|
|
|
|
res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID,
|
|
|
|
&tpacpi_wan_rfkill,
|
|
|
|
RFKILL_TYPE_WWAN,
|
2009-04-04 12:25:50 +08:00
|
|
|
TPACPI_RFK_WWAN_SW_NAME,
|
2009-01-11 13:01:03 +08:00
|
|
|
true,
|
2008-07-21 20:15:51 +08:00
|
|
|
tpacpi_wan_rfk_set,
|
|
|
|
tpacpi_wan_rfk_get);
|
|
|
|
if (res) {
|
|
|
|
wan_exit();
|
|
|
|
return res;
|
2007-04-21 22:08:40 +08:00
|
|
|
}
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
return 0;
|
2006-06-02 05:41:00 +08:00
|
|
|
}
|
|
|
|
|
2007-04-28 09:00:17 +08:00
|
|
|
/* procfs -------------------------------------------------------------- */
|
2006-06-02 05:41:00 +08:00
|
|
|
static int wan_read(char *p)
|
|
|
|
{
|
|
|
|
int len = 0;
|
2007-04-21 22:08:40 +08:00
|
|
|
int status = wan_get_radiosw();
|
2006-06-02 05:41:00 +08:00
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
tpacpi_disclose_usertask("procfs wan", "read");
|
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.wan)
|
2006-06-02 05:41:00 +08:00
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
else {
|
2007-04-21 22:08:40 +08:00
|
|
|
len += sprintf(p + len, "status:\t\t%s\n",
|
2008-07-21 20:15:51 +08:00
|
|
|
(status == RFKILL_STATE_UNBLOCKED) ?
|
|
|
|
"enabled" : "disabled");
|
2006-06-02 05:41:00 +08:00
|
|
|
len += sprintf(p + len, "commands:\tenable, disable\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int wan_write(char *buf)
|
|
|
|
{
|
|
|
|
char *cmd;
|
2009-04-04 12:25:50 +08:00
|
|
|
int state = -1;
|
2006-06-02 05:41:00 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.wan)
|
2006-06-02 05:41:00 +08:00
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (strlencmp(cmd, "enable") == 0) {
|
2009-04-04 12:25:50 +08:00
|
|
|
state = 1;
|
2006-06-02 05:41:00 +08:00
|
|
|
} else if (strlencmp(cmd, "disable") == 0) {
|
2009-04-04 12:25:50 +08:00
|
|
|
state = 0;
|
2006-06-02 05:41:00 +08:00
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
if (state != -1) {
|
|
|
|
tpacpi_disclose_usertask("procfs wan",
|
|
|
|
"attempt to %s\n",
|
|
|
|
state ? "enable" : "disable");
|
|
|
|
wan_set_radiosw(state, 1);
|
|
|
|
}
|
|
|
|
|
2006-06-02 05:41:00 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct wan_driver_data = {
|
|
|
|
.name = "wan",
|
|
|
|
.read = wan_read,
|
|
|
|
.write = wan_write,
|
2007-04-28 09:00:17 +08:00
|
|
|
.exit = wan_exit,
|
2009-01-11 13:01:01 +08:00
|
|
|
.suspend = wan_suspend,
|
2009-01-11 13:01:02 +08:00
|
|
|
.shutdown = wan_shutdown,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2009-01-11 13:01:03 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* UWB subdriver
|
|
|
|
*/
|
|
|
|
|
|
|
|
enum {
|
|
|
|
/* ACPI GUWB/SUWB bits */
|
|
|
|
TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */
|
|
|
|
TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */
|
|
|
|
};
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
#define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw"
|
|
|
|
|
2009-01-11 13:01:03 +08:00
|
|
|
static struct rfkill *tpacpi_uwb_rfkill;
|
|
|
|
|
|
|
|
static int uwb_get_radiosw(void)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tp_features.uwb)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
/* WLSW overrides UWB in firmware/hardware, reflect that */
|
|
|
|
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status)
|
|
|
|
return RFKILL_STATE_HARD_BLOCKED;
|
|
|
|
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_uwbemul)
|
|
|
|
return (tpacpi_uwb_emulstate) ?
|
|
|
|
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
if (!acpi_evalf(hkey_handle, &status, "GUWB", "d"))
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ?
|
|
|
|
RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void uwb_update_rfk(void)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tpacpi_uwb_rfkill)
|
|
|
|
return;
|
|
|
|
|
|
|
|
status = uwb_get_radiosw();
|
|
|
|
if (status < 0)
|
|
|
|
return;
|
|
|
|
rfkill_force_state(tpacpi_uwb_rfkill, status);
|
2009-04-04 12:25:50 +08:00
|
|
|
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"forced rfkill state to %d\n",
|
|
|
|
status);
|
2009-01-11 13:01:03 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int uwb_set_radiosw(int radio_on, int update_rfk)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
if (!tp_features.uwb)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
/* WLSW overrides UWB in firmware/hardware, but there is no
|
|
|
|
* reason to risk weird behaviour. */
|
|
|
|
if (tp_features.hotkey_wlsw && !hotkey_get_wlsw(&status) && !status
|
|
|
|
&& radio_on)
|
|
|
|
return -EPERM;
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"will %s UWB\n", radio_on ? "enable" : "disable");
|
|
|
|
|
2009-01-11 13:01:03 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_uwbemul) {
|
|
|
|
tpacpi_uwb_emulstate = !!radio_on;
|
|
|
|
if (update_rfk)
|
|
|
|
uwb_update_rfk();
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
status = (radio_on) ? TP_ACPI_UWB_RADIOSSW : 0;
|
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status))
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
if (update_rfk)
|
|
|
|
uwb_update_rfk();
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
|
|
|
static int tpacpi_uwb_rfk_get(void *data, enum rfkill_state *state)
|
|
|
|
{
|
|
|
|
int uwbs = uwb_get_radiosw();
|
|
|
|
|
|
|
|
if (uwbs < 0)
|
|
|
|
return uwbs;
|
|
|
|
|
|
|
|
*state = uwbs;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int tpacpi_uwb_rfk_set(void *data, enum rfkill_state state)
|
|
|
|
{
|
2009-04-04 12:25:50 +08:00
|
|
|
dbg_printk(TPACPI_DBG_RFKILL,
|
|
|
|
"request to change radio state to %d\n", state);
|
2009-01-11 13:01:03 +08:00
|
|
|
return uwb_set_radiosw((state == RFKILL_STATE_UNBLOCKED), 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void uwb_exit(void)
|
|
|
|
{
|
|
|
|
if (tpacpi_uwb_rfkill)
|
|
|
|
rfkill_unregister(tpacpi_uwb_rfkill);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int __init uwb_init(struct ibm_init_struct *iibm)
|
|
|
|
{
|
|
|
|
int res;
|
|
|
|
int status = 0;
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
|
|
"initializing uwb subdriver\n");
|
2009-01-11 13:01:03 +08:00
|
|
|
|
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
|
|
|
|
|
|
|
tp_features.uwb = hkey_handle &&
|
|
|
|
acpi_evalf(hkey_handle, &status, "GUWB", "qd");
|
|
|
|
|
2009-04-04 12:25:50 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
|
|
"uwb is %s, status 0x%02x\n",
|
2009-01-11 13:01:03 +08:00
|
|
|
str_supported(tp_features.uwb),
|
|
|
|
status);
|
|
|
|
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
if (dbg_uwbemul) {
|
|
|
|
tp_features.uwb = 1;
|
|
|
|
printk(TPACPI_INFO
|
|
|
|
"uwb switch emulation enabled\n");
|
|
|
|
} else
|
|
|
|
#endif
|
|
|
|
if (tp_features.uwb &&
|
|
|
|
!(status & TP_ACPI_UWB_HWPRESENT)) {
|
|
|
|
/* no uwb hardware present in system */
|
|
|
|
tp_features.uwb = 0;
|
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"uwb hardware not installed\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!tp_features.uwb)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID,
|
|
|
|
&tpacpi_uwb_rfkill,
|
|
|
|
RFKILL_TYPE_UWB,
|
2009-04-04 12:25:50 +08:00
|
|
|
TPACPI_RFK_UWB_SW_NAME,
|
2009-01-11 13:01:03 +08:00
|
|
|
false,
|
|
|
|
tpacpi_uwb_rfk_set,
|
|
|
|
tpacpi_uwb_rfk_get);
|
|
|
|
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct ibm_struct uwb_driver_data = {
|
|
|
|
.name = "uwb",
|
|
|
|
.exit = uwb_exit,
|
|
|
|
.flags.experimental = 1,
|
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Video subdriver
|
|
|
|
*/
|
|
|
|
|
2008-02-16 12:17:54 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_VIDEO
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
enum video_access_mode {
|
|
|
|
TPACPI_VIDEO_NONE = 0,
|
|
|
|
TPACPI_VIDEO_570, /* 570 */
|
|
|
|
TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */
|
|
|
|
TPACPI_VIDEO_NEW, /* all others */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum { /* video status flags, based on VIDEO_570 */
|
|
|
|
TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */
|
|
|
|
TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */
|
|
|
|
TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum { /* TPACPI_VIDEO_570 constants */
|
|
|
|
TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */
|
|
|
|
TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to
|
|
|
|
* video_status_flags */
|
|
|
|
TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */
|
|
|
|
TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */
|
|
|
|
};
|
|
|
|
|
2006-11-26 02:36:00 +08:00
|
|
|
static enum video_access_mode video_supported;
|
|
|
|
static int video_orig_autosw;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
static int video_autosw_get(void);
|
|
|
|
static int video_autosw_set(int enable);
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init video_init(struct ibm_init_struct *iibm)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2005-08-17 12:00:00 +08:00
|
|
|
int ivga;
|
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n");
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(vid);
|
|
|
|
TPACPI_ACPIHANDLE_INIT(vid2);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga)
|
|
|
|
/* G41, assume IVGA doesn't change */
|
|
|
|
vid_handle = vid2_handle;
|
|
|
|
|
|
|
|
if (!vid_handle)
|
|
|
|
/* video switching not supported on R30, R31 */
|
2007-04-21 22:08:28 +08:00
|
|
|
video_supported = TPACPI_VIDEO_NONE;
|
2005-08-17 12:00:00 +08:00
|
|
|
else if (acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd"))
|
|
|
|
/* 570 */
|
2007-04-21 22:08:28 +08:00
|
|
|
video_supported = TPACPI_VIDEO_570;
|
2005-08-17 12:00:00 +08:00
|
|
|
else if (acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd"))
|
|
|
|
/* 600e/x, 770e, 770x */
|
2007-04-21 22:08:28 +08:00
|
|
|
video_supported = TPACPI_VIDEO_770;
|
2005-08-17 12:00:00 +08:00
|
|
|
else
|
|
|
|
/* all others */
|
2007-04-21 22:08:28 +08:00
|
|
|
video_supported = TPACPI_VIDEO_NEW;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n",
|
|
|
|
str_supported(video_supported != TPACPI_VIDEO_NONE),
|
|
|
|
video_supported);
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
return (video_supported != TPACPI_VIDEO_NONE)? 0 : 1;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
static void video_exit(void)
|
|
|
|
{
|
2007-04-21 22:08:41 +08:00
|
|
|
dbg_printk(TPACPI_DBG_EXIT,
|
|
|
|
"restoring original video autoswitch mode\n");
|
|
|
|
if (video_autosw_set(video_orig_autosw))
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "error while trying to restore original "
|
2007-04-21 22:08:41 +08:00
|
|
|
"video autoswitch mode\n");
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
static int video_outputsw_get(void)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int status = 0;
|
|
|
|
int i;
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
switch (video_supported) {
|
|
|
|
case TPACPI_VIDEO_570:
|
|
|
|
if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd",
|
|
|
|
TP_ACPI_VIDEO_570_PHSCMD))
|
|
|
|
return -EIO;
|
|
|
|
status = i & TP_ACPI_VIDEO_570_PHSMASK;
|
|
|
|
break;
|
|
|
|
case TPACPI_VIDEO_770:
|
|
|
|
if (!acpi_evalf(NULL, &i, "\\VCDL", "d"))
|
|
|
|
return -EIO;
|
|
|
|
if (i)
|
|
|
|
status |= TP_ACPI_VIDEO_S_LCD;
|
|
|
|
if (!acpi_evalf(NULL, &i, "\\VCDC", "d"))
|
|
|
|
return -EIO;
|
|
|
|
if (i)
|
|
|
|
status |= TP_ACPI_VIDEO_S_CRT;
|
|
|
|
break;
|
|
|
|
case TPACPI_VIDEO_NEW:
|
|
|
|
if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) ||
|
|
|
|
!acpi_evalf(NULL, &i, "\\VCDC", "d"))
|
|
|
|
return -EIO;
|
|
|
|
if (i)
|
|
|
|
status |= TP_ACPI_VIDEO_S_CRT;
|
|
|
|
|
|
|
|
if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) ||
|
|
|
|
!acpi_evalf(NULL, &i, "\\VCDL", "d"))
|
|
|
|
return -EIO;
|
|
|
|
if (i)
|
|
|
|
status |= TP_ACPI_VIDEO_S_LCD;
|
|
|
|
if (!acpi_evalf(NULL, &i, "\\VCDD", "d"))
|
|
|
|
return -EIO;
|
|
|
|
if (i)
|
|
|
|
status |= TP_ACPI_VIDEO_S_DVI;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOSYS;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return status;
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
static int video_outputsw_set(int status)
|
2005-08-17 12:00:00 +08:00
|
|
|
{
|
2007-04-21 22:08:41 +08:00
|
|
|
int autosw;
|
|
|
|
int res = 0;
|
|
|
|
|
|
|
|
switch (video_supported) {
|
|
|
|
case TPACPI_VIDEO_570:
|
|
|
|
res = acpi_evalf(NULL, NULL,
|
|
|
|
"\\_SB.PHS2", "vdd",
|
|
|
|
TP_ACPI_VIDEO_570_PHS2CMD,
|
|
|
|
status | TP_ACPI_VIDEO_570_PHS2SET);
|
|
|
|
break;
|
|
|
|
case TPACPI_VIDEO_770:
|
|
|
|
autosw = video_autosw_get();
|
|
|
|
if (autosw < 0)
|
|
|
|
return autosw;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
res = video_autosw_set(1);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
res = acpi_evalf(vid_handle, NULL,
|
|
|
|
"ASWT", "vdd", status * 0x100, 0);
|
|
|
|
if (!autosw && video_autosw_set(autosw)) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"video auto-switch left enabled due to error\n");
|
2007-04-21 22:08:41 +08:00
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TPACPI_VIDEO_NEW:
|
|
|
|
res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) &&
|
2008-01-08 23:02:49 +08:00
|
|
|
acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1);
|
2007-04-21 22:08:41 +08:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOSYS;
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
return (res)? 0 : -EIO;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
static int video_autosw_get(void)
|
2005-08-17 12:00:00 +08:00
|
|
|
{
|
2007-04-21 22:08:41 +08:00
|
|
|
int autosw = 0;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
switch (video_supported) {
|
|
|
|
case TPACPI_VIDEO_570:
|
|
|
|
if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d"))
|
|
|
|
return -EIO;
|
|
|
|
break;
|
|
|
|
case TPACPI_VIDEO_770:
|
|
|
|
case TPACPI_VIDEO_NEW:
|
|
|
|
if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d"))
|
|
|
|
return -EIO;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOSYS;
|
|
|
|
}
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
return autosw & 1;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
static int video_autosw_set(int enable)
|
2005-08-17 12:00:00 +08:00
|
|
|
{
|
2007-04-21 22:08:41 +08:00
|
|
|
if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable)? 1 : 0))
|
|
|
|
return -EIO;
|
|
|
|
return 0;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
static int video_outputsw_cycle(void)
|
2005-08-17 12:00:00 +08:00
|
|
|
{
|
2007-04-21 22:08:41 +08:00
|
|
|
int autosw = video_autosw_get();
|
|
|
|
int res;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
if (autosw < 0)
|
|
|
|
return autosw;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
switch (video_supported) {
|
|
|
|
case TPACPI_VIDEO_570:
|
|
|
|
res = video_autosw_set(1);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
res = acpi_evalf(ec_handle, NULL, "_Q16", "v");
|
|
|
|
break;
|
|
|
|
case TPACPI_VIDEO_770:
|
|
|
|
case TPACPI_VIDEO_NEW:
|
|
|
|
res = video_autosw_set(1);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
res = acpi_evalf(vid_handle, NULL, "VSWT", "v");
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -ENOSYS;
|
|
|
|
}
|
|
|
|
if (!autosw && video_autosw_set(autosw)) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"video auto-switch left enabled due to error\n");
|
2007-04-21 22:08:41 +08:00
|
|
|
return -EIO;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
return (res)? 0 : -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int video_expand_toggle(void)
|
|
|
|
{
|
|
|
|
switch (video_supported) {
|
|
|
|
case TPACPI_VIDEO_570:
|
|
|
|
return acpi_evalf(ec_handle, NULL, "_Q17", "v")?
|
|
|
|
0 : -EIO;
|
|
|
|
case TPACPI_VIDEO_770:
|
|
|
|
return acpi_evalf(vid_handle, NULL, "VEXP", "v")?
|
|
|
|
0 : -EIO;
|
|
|
|
case TPACPI_VIDEO_NEW:
|
|
|
|
return acpi_evalf(NULL, NULL, "\\VEXP", "v")?
|
|
|
|
0 : -EIO;
|
|
|
|
default:
|
|
|
|
return -ENOSYS;
|
|
|
|
}
|
|
|
|
/* not reached */
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
static int video_read(char *p)
|
|
|
|
{
|
2007-04-21 22:08:41 +08:00
|
|
|
int status, autosw;
|
2007-03-24 04:33:57 +08:00
|
|
|
int len = 0;
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
if (video_supported == TPACPI_VIDEO_NONE) {
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
status = video_outputsw_get();
|
|
|
|
if (status < 0)
|
|
|
|
return status;
|
|
|
|
|
|
|
|
autosw = video_autosw_get();
|
|
|
|
if (autosw < 0)
|
|
|
|
return autosw;
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "status:\t\tsupported\n");
|
|
|
|
len += sprintf(p + len, "lcd:\t\t%s\n", enabled(status, 0));
|
|
|
|
len += sprintf(p + len, "crt:\t\t%s\n", enabled(status, 1));
|
2007-04-21 22:08:28 +08:00
|
|
|
if (video_supported == TPACPI_VIDEO_NEW)
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "dvi:\t\t%s\n", enabled(status, 3));
|
|
|
|
len += sprintf(p + len, "auto:\t\t%s\n", enabled(autosw, 0));
|
|
|
|
len += sprintf(p + len, "commands:\tlcd_enable, lcd_disable\n");
|
|
|
|
len += sprintf(p + len, "commands:\tcrt_enable, crt_disable\n");
|
2007-04-21 22:08:28 +08:00
|
|
|
if (video_supported == TPACPI_VIDEO_NEW)
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "commands:\tdvi_enable, dvi_disable\n");
|
|
|
|
len += sprintf(p + len, "commands:\tauto_enable, auto_disable\n");
|
|
|
|
len += sprintf(p + len, "commands:\tvideo_switch, expand_toggle\n");
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int video_write(char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
char *cmd;
|
|
|
|
int enable, disable, status;
|
2007-04-21 22:08:41 +08:00
|
|
|
int res;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
if (video_supported == TPACPI_VIDEO_NONE)
|
2005-08-17 12:00:00 +08:00
|
|
|
return -ENODEV;
|
|
|
|
|
2007-04-21 22:08:41 +08:00
|
|
|
enable = 0;
|
|
|
|
disable = 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (strlencmp(cmd, "lcd_enable") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
enable |= TP_ACPI_VIDEO_S_LCD;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "lcd_disable") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
disable |= TP_ACPI_VIDEO_S_LCD;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "crt_enable") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
enable |= TP_ACPI_VIDEO_S_CRT;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "crt_disable") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
disable |= TP_ACPI_VIDEO_S_CRT;
|
2007-04-21 22:08:28 +08:00
|
|
|
} else if (video_supported == TPACPI_VIDEO_NEW &&
|
2005-08-17 12:00:00 +08:00
|
|
|
strlencmp(cmd, "dvi_enable") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
enable |= TP_ACPI_VIDEO_S_DVI;
|
2007-04-21 22:08:28 +08:00
|
|
|
} else if (video_supported == TPACPI_VIDEO_NEW &&
|
2005-08-17 12:00:00 +08:00
|
|
|
strlencmp(cmd, "dvi_disable") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
disable |= TP_ACPI_VIDEO_S_DVI;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "auto_enable") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
res = video_autosw_set(1);
|
|
|
|
if (res)
|
|
|
|
return res;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "auto_disable") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
res = video_autosw_set(0);
|
|
|
|
if (res)
|
|
|
|
return res;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "video_switch") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
res = video_outputsw_cycle();
|
|
|
|
if (res)
|
|
|
|
return res;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "expand_toggle") == 0) {
|
2007-04-21 22:08:41 +08:00
|
|
|
res = video_expand_toggle();
|
|
|
|
if (res)
|
|
|
|
return res;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (enable || disable) {
|
2007-04-21 22:08:41 +08:00
|
|
|
status = video_outputsw_get();
|
|
|
|
if (status < 0)
|
|
|
|
return status;
|
|
|
|
res = video_outputsw_set((status & ~disable) | enable);
|
|
|
|
if (res)
|
|
|
|
return res;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct video_driver_data = {
|
|
|
|
.name = "video",
|
|
|
|
.read = video_read,
|
|
|
|
.write = video_write,
|
|
|
|
.exit = video_exit,
|
|
|
|
};
|
|
|
|
|
2008-02-16 12:17:54 +08:00
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_VIDEO */
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Light (thinklight) subdriver
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */
|
|
|
|
TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2008-04-26 12:02:23 +08:00
|
|
|
static int light_get_status(void)
|
|
|
|
{
|
|
|
|
int status = 0;
|
|
|
|
|
|
|
|
if (tp_features.light_status) {
|
|
|
|
if (!acpi_evalf(ec_handle, &status, "KBLT", "d"))
|
|
|
|
return -EIO;
|
|
|
|
return (!!status);
|
|
|
|
}
|
|
|
|
|
|
|
|
return -ENXIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int light_set_status(int status)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
if (tp_features.light) {
|
|
|
|
if (cmos_handle) {
|
|
|
|
rc = acpi_evalf(cmos_handle, NULL, NULL, "vd",
|
|
|
|
(status)?
|
|
|
|
TP_CMOS_THINKLIGHT_ON :
|
|
|
|
TP_CMOS_THINKLIGHT_OFF);
|
|
|
|
} else {
|
|
|
|
rc = acpi_evalf(lght_handle, NULL, NULL, "vd",
|
|
|
|
(status)? 1 : 0);
|
|
|
|
}
|
|
|
|
return (rc)? 0 : -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -ENXIO;
|
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:24 +08:00
|
|
|
static void light_set_status_worker(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct tpacpi_led_classdev *data =
|
|
|
|
container_of(work, struct tpacpi_led_classdev, work);
|
|
|
|
|
|
|
|
if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))
|
2009-04-14 10:44:11 +08:00
|
|
|
light_set_status((data->new_state != TPACPI_LED_OFF));
|
2008-04-26 12:02:24 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void light_sysfs_set(struct led_classdev *led_cdev,
|
|
|
|
enum led_brightness brightness)
|
|
|
|
{
|
|
|
|
struct tpacpi_led_classdev *data =
|
|
|
|
container_of(led_cdev,
|
|
|
|
struct tpacpi_led_classdev,
|
|
|
|
led_classdev);
|
2009-04-14 10:44:11 +08:00
|
|
|
data->new_state = (brightness != LED_OFF) ?
|
|
|
|
TPACPI_LED_ON : TPACPI_LED_OFF;
|
2008-04-26 12:02:28 +08:00
|
|
|
queue_work(tpacpi_wq, &data->work);
|
2008-04-26 12:02:24 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev)
|
|
|
|
{
|
|
|
|
return (light_get_status() == 1)? LED_FULL : LED_OFF;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct tpacpi_led_classdev tpacpi_led_thinklight = {
|
|
|
|
.led_classdev = {
|
|
|
|
.name = "tpacpi::thinklight",
|
|
|
|
.brightness_set = &light_sysfs_set,
|
|
|
|
.brightness_get = &light_sysfs_get,
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init light_init(struct ibm_init_struct *iibm)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2008-06-04 10:36:10 +08:00
|
|
|
int rc;
|
2008-04-26 12:02:24 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n");
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(ledb);
|
|
|
|
TPACPI_ACPIHANDLE_INIT(lght);
|
|
|
|
TPACPI_ACPIHANDLE_INIT(cmos);
|
2008-04-26 12:02:24 +08:00
|
|
|
INIT_WORK(&tpacpi_led_thinklight.work, light_set_status_worker);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
/* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */
|
2007-04-21 22:08:36 +08:00
|
|
|
tp_features.light = (cmos_handle || lght_handle) && !ledb_handle;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (tp_features.light)
|
2005-08-17 12:00:00 +08:00
|
|
|
/* light status not supported on
|
|
|
|
570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */
|
2007-04-21 22:08:36 +08:00
|
|
|
tp_features.light_status =
|
|
|
|
acpi_evalf(ec_handle, NULL, "KBLT", "qv");
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n",
|
|
|
|
str_supported(tp_features.light),
|
|
|
|
str_supported(tp_features.light_status));
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2008-06-04 10:36:10 +08:00
|
|
|
if (!tp_features.light)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
rc = led_classdev_register(&tpacpi_pdev->dev,
|
|
|
|
&tpacpi_led_thinklight.led_classdev);
|
2008-04-26 12:02:24 +08:00
|
|
|
|
|
|
|
if (rc < 0) {
|
|
|
|
tp_features.light = 0;
|
|
|
|
tp_features.light_status = 0;
|
2008-06-04 10:36:10 +08:00
|
|
|
} else {
|
|
|
|
rc = 0;
|
2008-04-26 12:02:24 +08:00
|
|
|
}
|
2008-06-04 10:36:10 +08:00
|
|
|
|
2008-04-26 12:02:24 +08:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void light_exit(void)
|
|
|
|
{
|
|
|
|
led_classdev_unregister(&tpacpi_led_thinklight.led_classdev);
|
|
|
|
if (work_pending(&tpacpi_led_thinklight.work))
|
2008-04-26 12:02:28 +08:00
|
|
|
flush_workqueue(tpacpi_wq);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int light_read(char *p)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int len = 0;
|
2008-04-26 12:02:23 +08:00
|
|
|
int status;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.light) {
|
2005-08-17 12:00:00 +08:00
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
2007-04-21 22:08:36 +08:00
|
|
|
} else if (!tp_features.light_status) {
|
2005-08-17 12:00:00 +08:00
|
|
|
len += sprintf(p + len, "status:\t\tunknown\n");
|
|
|
|
len += sprintf(p + len, "commands:\ton, off\n");
|
|
|
|
} else {
|
2008-04-26 12:02:23 +08:00
|
|
|
status = light_get_status();
|
|
|
|
if (status < 0)
|
|
|
|
return status;
|
2005-04-17 06:20:36 +08:00
|
|
|
len += sprintf(p + len, "status:\t\t%s\n", onoff(status, 0));
|
2005-08-17 12:00:00 +08:00
|
|
|
len += sprintf(p + len, "commands:\ton, off\n");
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int light_write(char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
char *cmd;
|
2008-04-26 12:02:23 +08:00
|
|
|
int newstatus = 0;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.light)
|
2005-08-17 12:00:00 +08:00
|
|
|
return -ENODEV;
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (strlencmp(cmd, "on") == 0) {
|
2008-04-26 12:02:23 +08:00
|
|
|
newstatus = 1;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strlencmp(cmd, "off") == 0) {
|
2008-04-26 12:02:23 +08:00
|
|
|
newstatus = 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:23 +08:00
|
|
|
return light_set_status(newstatus);
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct light_driver_data = {
|
|
|
|
.name = "light",
|
|
|
|
.read = light_read,
|
|
|
|
.write = light_write,
|
2008-04-26 12:02:24 +08:00
|
|
|
.exit = light_exit,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Dock subdriver
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-03-29 12:58:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DOCK
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
static void dock_notify(struct ibm_struct *ibm, u32 event);
|
|
|
|
static int dock_read(char *p);
|
|
|
|
static int dock_write(char *buf);
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(dock, root, "\\_SB.GDCK", /* X30, X31, X40 */
|
2007-03-24 04:33:57 +08:00
|
|
|
"\\_SB.PCI0.DOCK", /* 600e/x,770e,770x,A2xm/p,T20-22,X20-21 */
|
|
|
|
"\\_SB.PCI0.PCI1.DOCK", /* all others */
|
|
|
|
"\\_SB.PCI.ISA.SLCE", /* 570 */
|
|
|
|
); /* A21e,G4x,R30,R31,R32,R40,R40e,R50e */
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
/* don't list other alternatives as we install a notify handler on the 570 */
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(pci, root, "\\_SB.PCI"); /* 570 */
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2007-07-23 20:44:41 +08:00
|
|
|
static const struct acpi_device_id ibm_pci_device_ids[] = {
|
|
|
|
{PCI_ROOT_HID_STRING, 0},
|
|
|
|
{"", 0},
|
|
|
|
};
|
|
|
|
|
2007-04-28 09:00:15 +08:00
|
|
|
static struct tp_acpi_drv_struct ibm_dock_acpidriver[2] = {
|
|
|
|
{
|
|
|
|
.notify = dock_notify,
|
|
|
|
.handle = &dock_handle,
|
|
|
|
.type = ACPI_SYSTEM_NOTIFY,
|
|
|
|
},
|
|
|
|
{
|
2007-07-19 10:45:40 +08:00
|
|
|
/* THIS ONE MUST NEVER BE USED FOR DRIVER AUTOLOADING.
|
|
|
|
* We just use it to get notifications of dock hotplug
|
|
|
|
* in very old thinkpads */
|
2007-07-23 20:44:41 +08:00
|
|
|
.hid = ibm_pci_device_ids,
|
2007-04-28 09:00:15 +08:00
|
|
|
.notify = dock_notify,
|
|
|
|
.handle = &pci_handle,
|
|
|
|
.type = ACPI_SYSTEM_NOTIFY,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct ibm_struct dock_driver_data[2] = {
|
|
|
|
{
|
|
|
|
.name = "dock",
|
|
|
|
.read = dock_read,
|
|
|
|
.write = dock_write,
|
|
|
|
.acpi = &ibm_dock_acpidriver[0],
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.name = "dock",
|
|
|
|
.acpi = &ibm_dock_acpidriver[1],
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
#define dock_docked() (_sta(dock_handle) & 1)
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init dock_init(struct ibm_init_struct *iibm)
|
2007-04-21 22:08:31 +08:00
|
|
|
{
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver\n");
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(dock);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "dock is %s\n",
|
|
|
|
str_supported(dock_handle != NULL));
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
return (dock_handle)? 0 : 1;
|
|
|
|
}
|
|
|
|
|
2007-04-28 09:00:15 +08:00
|
|
|
static int __init dock_init2(struct ibm_init_struct *iibm)
|
|
|
|
{
|
|
|
|
int dock2_needed;
|
|
|
|
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing dock subdriver part 2\n");
|
|
|
|
|
|
|
|
if (dock_driver_data[0].flags.acpi_driver_registered &&
|
|
|
|
dock_driver_data[0].flags.acpi_notify_installed) {
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(pci);
|
2007-04-28 09:00:15 +08:00
|
|
|
dock2_needed = (pci_handle != NULL);
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"dock PCI handler for the TP 570 is %s\n",
|
|
|
|
str_supported(dock2_needed));
|
|
|
|
} else {
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"dock subdriver part 2 not required\n");
|
|
|
|
dock2_needed = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return (dock2_needed)? 0 : 1;
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
static void dock_notify(struct ibm_struct *ibm, u32 event)
|
|
|
|
{
|
|
|
|
int docked = dock_docked();
|
2007-07-23 20:44:41 +08:00
|
|
|
int pci = ibm->acpi->hid && ibm->acpi->device &&
|
|
|
|
acpi_match_device_ids(ibm->acpi->device, ibm_pci_device_ids);
|
2007-08-23 01:24:31 +08:00
|
|
|
int data;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
|
|
|
if (event == 1 && !pci) /* 570 */
|
2007-08-23 01:24:31 +08:00
|
|
|
data = 1; /* button */
|
2007-03-24 04:33:57 +08:00
|
|
|
else if (event == 1 && pci) /* 570 */
|
2007-08-23 01:24:31 +08:00
|
|
|
data = 3; /* dock */
|
2007-03-24 04:33:57 +08:00
|
|
|
else if (event == 3 && docked)
|
2007-08-23 01:24:31 +08:00
|
|
|
data = 1; /* button */
|
2007-03-24 04:33:57 +08:00
|
|
|
else if (event == 3 && !docked)
|
2007-08-23 01:24:31 +08:00
|
|
|
data = 2; /* undock */
|
2007-03-24 04:33:57 +08:00
|
|
|
else if (event == 0 && docked)
|
2007-08-23 01:24:31 +08:00
|
|
|
data = 3; /* dock */
|
2007-03-24 04:33:57 +08:00
|
|
|
else {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "unknown dock event %d, status %d\n",
|
2007-03-24 04:33:57 +08:00
|
|
|
event, _sta(dock_handle));
|
2007-08-23 01:24:31 +08:00
|
|
|
data = 0; /* unknown */
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
2007-08-24 03:20:26 +08:00
|
|
|
acpi_bus_generate_proc_event(ibm->acpi->device, event, data);
|
2007-08-23 01:24:31 +08:00
|
|
|
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
|
2009-01-11 13:00:59 +08:00
|
|
|
dev_name(&ibm->acpi->device->dev),
|
2007-08-23 01:24:31 +08:00
|
|
|
event, data);
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int dock_read(char *p)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
int docked = dock_docked();
|
|
|
|
|
|
|
|
if (!dock_handle)
|
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
else if (!docked)
|
|
|
|
len += sprintf(p + len, "status:\t\tundocked\n");
|
|
|
|
else {
|
|
|
|
len += sprintf(p + len, "status:\t\tdocked\n");
|
|
|
|
len += sprintf(p + len, "commands:\tdock, undock\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int dock_write(char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
char *cmd;
|
|
|
|
|
|
|
|
if (!dock_docked())
|
2005-08-17 12:00:00 +08:00
|
|
|
return -ENODEV;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (strlencmp(cmd, "undock") == 0) {
|
2005-08-17 12:00:00 +08:00
|
|
|
if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 0) ||
|
|
|
|
!acpi_evalf(dock_handle, NULL, "_EJ0", "vd", 1))
|
2007-03-24 04:33:57 +08:00
|
|
|
return -EIO;
|
|
|
|
} else if (strlencmp(cmd, "dock") == 0) {
|
|
|
|
if (!acpi_evalf(dock_handle, NULL, "_DCK", "vd", 1))
|
|
|
|
return -EIO;
|
|
|
|
} else
|
|
|
|
return -EINVAL;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2007-03-24 04:33:57 +08:00
|
|
|
|
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-03-29 12:58:41 +08:00
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_DOCK */
|
2007-03-24 04:33:57 +08:00
|
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
* Bay subdriver
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-03-29 12:58:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_BAY
|
2008-01-08 23:02:44 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST", /* 570 */
|
2007-03-24 04:33:57 +08:00
|
|
|
"\\_SB.PCI0.IDE0.IDES.IDSM", /* 600e/x, 770e, 770x */
|
|
|
|
"\\_SB.PCI0.SATA.SCND.MSTR", /* T60, X60, Z60 */
|
|
|
|
"\\_SB.PCI0.IDE0.SCND.MSTR", /* all others */
|
|
|
|
); /* A21e, R30, R31 */
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(bay_ej, bay, "_EJ3", /* 600e/x, A2xm/p, A3x */
|
2007-03-24 04:33:57 +08:00
|
|
|
"_EJ0", /* all others */
|
|
|
|
); /* 570,A21e,G4x,R30,R31,R32,R40e,R50e */
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV", /* A3x, R32 */
|
2007-03-24 04:33:57 +08:00
|
|
|
"\\_SB.PCI0.IDE0.IDEP.IDPS", /* 600e/x, 770e, 770x */
|
|
|
|
); /* all others */
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(bay2_ej, bay2, "_EJ3", /* 600e/x, 770e, A3x */
|
2007-03-24 04:33:57 +08:00
|
|
|
"_EJ0", /* 770x */
|
|
|
|
); /* all others */
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init bay_init(struct ibm_init_struct *iibm)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing bay subdriver\n");
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(bay);
|
2007-04-21 22:08:31 +08:00
|
|
|
if (bay_handle)
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(bay_ej);
|
|
|
|
TPACPI_ACPIHANDLE_INIT(bay2);
|
2007-04-21 22:08:31 +08:00
|
|
|
if (bay2_handle)
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(bay2_ej);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
tp_features.bay_status = bay_handle &&
|
|
|
|
acpi_evalf(bay_handle, NULL, "_STA", "qv");
|
|
|
|
tp_features.bay_status2 = bay2_handle &&
|
|
|
|
acpi_evalf(bay2_handle, NULL, "_STA", "qv");
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
tp_features.bay_eject = bay_handle && bay_ej_handle &&
|
|
|
|
(strlencmp(bay_ej_path, "_EJ0") == 0 || experimental);
|
|
|
|
tp_features.bay_eject2 = bay2_handle && bay2_ej_handle &&
|
|
|
|
(strlencmp(bay2_ej_path, "_EJ0") == 0 || experimental);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"bay 1: status %s, eject %s; bay 2: status %s, eject %s\n",
|
2007-04-21 22:08:36 +08:00
|
|
|
str_supported(tp_features.bay_status),
|
|
|
|
str_supported(tp_features.bay_eject),
|
|
|
|
str_supported(tp_features.bay_status2),
|
|
|
|
str_supported(tp_features.bay_eject2));
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
return (tp_features.bay_status || tp_features.bay_eject ||
|
|
|
|
tp_features.bay_status2 || tp_features.bay_eject2)? 0 : 1;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
static void bay_notify(struct ibm_struct *ibm, u32 event)
|
|
|
|
{
|
2007-08-24 03:20:26 +08:00
|
|
|
acpi_bus_generate_proc_event(ibm->acpi->device, event, 0);
|
2007-08-23 01:24:31 +08:00
|
|
|
acpi_bus_generate_netlink_event(ibm->acpi->device->pnp.device_class,
|
2009-01-11 13:00:59 +08:00
|
|
|
dev_name(&ibm->acpi->device->dev),
|
2007-08-23 01:24:31 +08:00
|
|
|
event, 0);
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
#define bay_occupied(b) (_sta(b##_handle) & 1)
|
|
|
|
|
|
|
|
static int bay_read(char *p)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int len = 0;
|
2005-08-17 12:00:00 +08:00
|
|
|
int occupied = bay_occupied(bay);
|
|
|
|
int occupied2 = bay_occupied(bay2);
|
|
|
|
int eject, eject2;
|
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
len += sprintf(p + len, "status:\t\t%s\n",
|
|
|
|
tp_features.bay_status ?
|
|
|
|
(occupied ? "occupied" : "unoccupied") :
|
|
|
|
"not supported");
|
|
|
|
if (tp_features.bay_status2)
|
2005-08-17 12:00:00 +08:00
|
|
|
len += sprintf(p + len, "status2:\t%s\n", occupied2 ?
|
|
|
|
"occupied" : "unoccupied");
|
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
eject = tp_features.bay_eject && occupied;
|
|
|
|
eject2 = tp_features.bay_eject2 && occupied2;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
|
|
|
if (eject && eject2)
|
|
|
|
len += sprintf(p + len, "commands:\teject, eject2\n");
|
|
|
|
else if (eject)
|
2005-04-17 06:20:36 +08:00
|
|
|
len += sprintf(p + len, "commands:\teject\n");
|
2005-08-17 12:00:00 +08:00
|
|
|
else if (eject2)
|
|
|
|
len += sprintf(p + len, "commands:\teject2\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int bay_write(char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
char *cmd;
|
|
|
|
|
2007-04-21 22:08:36 +08:00
|
|
|
if (!tp_features.bay_eject && !tp_features.bay_eject2)
|
2005-08-17 12:00:00 +08:00
|
|
|
return -ENODEV;
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
while ((cmd = next_cmd(&buf))) {
|
2007-04-21 22:08:36 +08:00
|
|
|
if (tp_features.bay_eject && strlencmp(cmd, "eject") == 0) {
|
2005-08-17 12:00:00 +08:00
|
|
|
if (!acpi_evalf(bay_ej_handle, NULL, NULL, "vd", 1))
|
|
|
|
return -EIO;
|
2007-04-21 22:08:36 +08:00
|
|
|
} else if (tp_features.bay_eject2 &&
|
2005-08-17 12:00:00 +08:00
|
|
|
strlencmp(cmd, "eject2") == 0) {
|
|
|
|
if (!acpi_evalf(bay2_ej_handle, NULL, NULL, "vd", 1))
|
2005-04-17 06:20:36 +08:00
|
|
|
return -EIO;
|
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
2007-04-21 22:08:33 +08:00
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
static struct tp_acpi_drv_struct ibm_bay_acpidriver = {
|
|
|
|
.notify = bay_notify,
|
|
|
|
.handle = &bay_handle,
|
|
|
|
.type = ACPI_SYSTEM_NOTIFY,
|
|
|
|
};
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct bay_driver_data = {
|
|
|
|
.name = "bay",
|
|
|
|
.read = bay_read,
|
|
|
|
.write = bay_write,
|
2007-04-21 22:08:37 +08:00
|
|
|
.acpi = &ibm_bay_acpidriver,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-29 12:58:41 +08:00
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_BAY */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* CMOS subdriver
|
|
|
|
*/
|
|
|
|
|
2007-04-24 22:48:19 +08:00
|
|
|
/* sysfs cmos_command -------------------------------------------------- */
|
|
|
|
static ssize_t cmos_command_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long cmos_cmd;
|
|
|
|
int res;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 21, &cmos_cmd))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
res = issue_thinkpad_cmos_command(cmos_cmd);
|
|
|
|
return (res)? res : count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_cmos_command =
|
|
|
|
__ATTR(cmos_command, S_IWUSR, NULL, cmos_command_store);
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init cmos_init(struct ibm_init_struct *iibm)
|
2007-04-21 22:08:31 +08:00
|
|
|
{
|
2007-04-24 22:48:19 +08:00
|
|
|
int res;
|
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"initializing cmos commands subdriver\n");
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(cmos);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n",
|
|
|
|
str_supported(cmos_handle != NULL));
|
2007-04-24 22:48:19 +08:00
|
|
|
|
|
|
|
res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
return (cmos_handle)? 0 : 1;
|
|
|
|
}
|
|
|
|
|
2007-04-24 22:48:19 +08:00
|
|
|
static void cmos_exit(void)
|
|
|
|
{
|
|
|
|
device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command);
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int cmos_read(char *p)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
/* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
|
|
|
|
R30, R31, T20-22, X20-21 */
|
2005-04-17 06:20:36 +08:00
|
|
|
if (!cmos_handle)
|
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
else {
|
|
|
|
len += sprintf(p + len, "status:\t\tsupported\n");
|
2005-08-17 12:00:00 +08:00
|
|
|
len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-21)\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int cmos_write(char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
char *cmd;
|
2007-04-21 22:08:42 +08:00
|
|
|
int cmos_cmd, res;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
2005-08-17 12:00:00 +08:00
|
|
|
if (sscanf(cmd, "%u", &cmos_cmd) == 1 &&
|
|
|
|
cmos_cmd >= 0 && cmos_cmd <= 21) {
|
2005-04-17 06:20:36 +08:00
|
|
|
/* cmos_cmd set */
|
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
|
2007-04-21 22:08:42 +08:00
|
|
|
res = issue_thinkpad_cmos_command(cmos_cmd);
|
|
|
|
if (res)
|
|
|
|
return res;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct cmos_driver_data = {
|
|
|
|
.name = "cmos",
|
|
|
|
.read = cmos_read,
|
|
|
|
.write = cmos_write,
|
2007-04-24 22:48:19 +08:00
|
|
|
.exit = cmos_exit,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
2007-03-24 04:33:57 +08:00
|
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
* LED subdriver
|
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
enum led_access_mode {
|
|
|
|
TPACPI_LED_NONE = 0,
|
|
|
|
TPACPI_LED_570, /* 570 */
|
|
|
|
TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
|
|
|
|
TPACPI_LED_NEW, /* all others */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum { /* For TPACPI_LED_OLD */
|
|
|
|
TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */
|
|
|
|
TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */
|
|
|
|
TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */
|
|
|
|
};
|
|
|
|
|
2006-11-26 02:36:00 +08:00
|
|
|
static enum led_access_mode led_supported;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(led, ec, "SLED", /* 570 */
|
2008-01-08 23:02:49 +08:00
|
|
|
"SYSL", /* 600e/x, 770e, 770x, A21e, A2xm/p, */
|
|
|
|
/* T20-22, X20-21 */
|
2007-03-24 04:33:57 +08:00
|
|
|
"LED", /* all others */
|
|
|
|
); /* R30, R31 */
|
|
|
|
|
2008-04-26 12:02:25 +08:00
|
|
|
#define TPACPI_LED_NUMLEDS 8
|
|
|
|
static struct tpacpi_led_classdev *tpacpi_leds;
|
|
|
|
static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS];
|
2008-05-30 08:51:57 +08:00
|
|
|
static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = {
|
2008-04-26 12:02:25 +08:00
|
|
|
/* there's a limit of 19 chars + NULL before 2.6.26 */
|
|
|
|
"tpacpi::power",
|
|
|
|
"tpacpi:orange:batt",
|
|
|
|
"tpacpi:green:batt",
|
|
|
|
"tpacpi::dock_active",
|
|
|
|
"tpacpi::bay_active",
|
|
|
|
"tpacpi::dock_batt",
|
|
|
|
"tpacpi::unknown_led",
|
|
|
|
"tpacpi::standby",
|
|
|
|
};
|
2009-04-04 12:25:49 +08:00
|
|
|
#define TPACPI_SAFE_LEDS 0x0081U
|
|
|
|
|
|
|
|
static inline bool tpacpi_is_led_restricted(const unsigned int led)
|
|
|
|
{
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
|
|
|
|
return false;
|
|
|
|
#else
|
|
|
|
return (TPACPI_SAFE_LEDS & (1 << led)) == 0;
|
|
|
|
#endif
|
|
|
|
}
|
2008-04-26 12:02:25 +08:00
|
|
|
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
static int led_get_status(const unsigned int led)
|
2008-04-26 12:02:23 +08:00
|
|
|
{
|
|
|
|
int status;
|
2008-04-26 12:02:25 +08:00
|
|
|
enum led_status_t led_s;
|
2008-04-26 12:02:23 +08:00
|
|
|
|
|
|
|
switch (led_supported) {
|
|
|
|
case TPACPI_LED_570:
|
|
|
|
if (!acpi_evalf(ec_handle,
|
|
|
|
&status, "GLED", "dd", 1 << led))
|
|
|
|
return -EIO;
|
2008-04-26 12:02:25 +08:00
|
|
|
led_s = (status == 0)?
|
2008-04-26 12:02:23 +08:00
|
|
|
TPACPI_LED_OFF :
|
|
|
|
((status == 1)?
|
|
|
|
TPACPI_LED_ON :
|
|
|
|
TPACPI_LED_BLINK);
|
2008-04-26 12:02:25 +08:00
|
|
|
tpacpi_led_state_cache[led] = led_s;
|
|
|
|
return led_s;
|
2008-04-26 12:02:23 +08:00
|
|
|
default:
|
|
|
|
return -ENXIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* not reached */
|
|
|
|
}
|
|
|
|
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
static int led_set_status(const unsigned int led,
|
|
|
|
const enum led_status_t ledstatus)
|
2008-04-26 12:02:23 +08:00
|
|
|
{
|
|
|
|
/* off, on, blink. Index is led_status_t */
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
static const unsigned int led_sled_arg1[] = { 0, 1, 3 };
|
|
|
|
static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 };
|
2008-04-26 12:02:23 +08:00
|
|
|
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
switch (led_supported) {
|
|
|
|
case TPACPI_LED_570:
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
/* 570 */
|
2009-04-04 12:25:49 +08:00
|
|
|
if (unlikely(led > 7))
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
return -EINVAL;
|
2009-04-04 12:25:49 +08:00
|
|
|
if (unlikely(tpacpi_is_led_restricted(led)))
|
|
|
|
return -EPERM;
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
|
|
|
|
(1 << led), led_sled_arg1[ledstatus]))
|
|
|
|
rc = -EIO;
|
|
|
|
break;
|
2008-04-26 12:02:23 +08:00
|
|
|
case TPACPI_LED_OLD:
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */
|
2009-04-04 12:25:49 +08:00
|
|
|
if (unlikely(led > 7))
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
return -EINVAL;
|
2009-04-04 12:25:49 +08:00
|
|
|
if (unlikely(tpacpi_is_led_restricted(led)))
|
|
|
|
return -EPERM;
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led));
|
|
|
|
if (rc >= 0)
|
|
|
|
rc = ec_write(TPACPI_LED_EC_HLBL,
|
|
|
|
(ledstatus == TPACPI_LED_BLINK) << led);
|
|
|
|
if (rc >= 0)
|
|
|
|
rc = ec_write(TPACPI_LED_EC_HLCL,
|
|
|
|
(ledstatus != TPACPI_LED_OFF) << led);
|
|
|
|
break;
|
2008-04-26 12:02:23 +08:00
|
|
|
case TPACPI_LED_NEW:
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
/* all others */
|
2009-04-04 12:25:49 +08:00
|
|
|
if (unlikely(led >= TPACPI_LED_NUMLEDS))
|
|
|
|
return -EINVAL;
|
|
|
|
if (unlikely(tpacpi_is_led_restricted(led)))
|
|
|
|
return -EPERM;
|
thinkpad-acpi: fix LED handling on older ThinkPads
The less tested codepaths for LED handling, used on ThinkPads 570, 600e/x,
770e, 770x, A21e, A2xm/p, T20-22, X20 and maybe a few others, would write
data to kernel memory it had no business touching, for leds number 3 and
above. If one is lucky, that illegal write would cause an OOPS, but
chances are it would silently corrupt a byte.
The problem was introduced in commit af116101, "ACPI: thinkpad-acpi: add
sysfs led class support to thinkpad leds (v3.2)".
Fix the bug by refactoring the entire code to be far more obvious on what
it wants to do. Also do some defensive "constification".
Issue reported by Karol Lewandowski <lmctlx@gmail.com> (he's an lucky guy
and got an OOPS instead of silent corruption :-) ).
Root cause of the OOPS identified by Adrian Bunk <bunk@kernel.org>.
Thanks, Adrian!
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Tested-by: Karol Lewandowski <lmctlx@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-04 10:36:11 +08:00
|
|
|
if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
|
|
|
|
led, led_led_arg1[ledstatus]))
|
|
|
|
rc = -EIO;
|
|
|
|
break;
|
2008-04-26 12:02:23 +08:00
|
|
|
default:
|
|
|
|
rc = -ENXIO;
|
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:25 +08:00
|
|
|
if (!rc)
|
|
|
|
tpacpi_led_state_cache[led] = ledstatus;
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void led_set_status_worker(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct tpacpi_led_classdev *data =
|
|
|
|
container_of(work, struct tpacpi_led_classdev, work);
|
|
|
|
|
|
|
|
if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))
|
2009-04-14 10:44:11 +08:00
|
|
|
led_set_status(data->led, data->new_state);
|
2008-04-26 12:02:25 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void led_sysfs_set(struct led_classdev *led_cdev,
|
|
|
|
enum led_brightness brightness)
|
|
|
|
{
|
|
|
|
struct tpacpi_led_classdev *data = container_of(led_cdev,
|
|
|
|
struct tpacpi_led_classdev, led_classdev);
|
|
|
|
|
2009-04-14 10:44:11 +08:00
|
|
|
if (brightness == LED_OFF)
|
|
|
|
data->new_state = TPACPI_LED_OFF;
|
|
|
|
else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK)
|
|
|
|
data->new_state = TPACPI_LED_ON;
|
|
|
|
else
|
|
|
|
data->new_state = TPACPI_LED_BLINK;
|
|
|
|
|
2008-04-26 12:02:28 +08:00
|
|
|
queue_work(tpacpi_wq, &data->work);
|
2008-04-26 12:02:25 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int led_sysfs_blink_set(struct led_classdev *led_cdev,
|
|
|
|
unsigned long *delay_on, unsigned long *delay_off)
|
|
|
|
{
|
|
|
|
struct tpacpi_led_classdev *data = container_of(led_cdev,
|
|
|
|
struct tpacpi_led_classdev, led_classdev);
|
|
|
|
|
|
|
|
/* Can we choose the flash rate? */
|
|
|
|
if (*delay_on == 0 && *delay_off == 0) {
|
|
|
|
/* yes. set them to the hardware blink rate (1 Hz) */
|
|
|
|
*delay_on = 500; /* ms */
|
|
|
|
*delay_off = 500; /* ms */
|
|
|
|
} else if ((*delay_on != 500) || (*delay_off != 500))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-04-14 10:44:11 +08:00
|
|
|
data->new_state = TPACPI_LED_BLINK;
|
2008-04-26 12:02:28 +08:00
|
|
|
queue_work(tpacpi_wq, &data->work);
|
2008-04-26 12:02:25 +08:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
struct tpacpi_led_classdev *data = container_of(led_cdev,
|
|
|
|
struct tpacpi_led_classdev, led_classdev);
|
|
|
|
|
|
|
|
rc = led_get_status(data->led);
|
|
|
|
|
|
|
|
if (rc == TPACPI_LED_OFF || rc < 0)
|
|
|
|
rc = LED_OFF; /* no error handling in led class :( */
|
|
|
|
else
|
|
|
|
rc = LED_FULL;
|
|
|
|
|
2008-04-26 12:02:23 +08:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:25 +08:00
|
|
|
static void led_exit(void)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
|
|
|
|
if (tpacpi_leds[i].led_classdev.name)
|
|
|
|
led_classdev_unregister(&tpacpi_leds[i].led_classdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
kfree(tpacpi_leds);
|
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:49 +08:00
|
|
|
static int __init tpacpi_init_led(unsigned int led)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
tpacpi_leds[led].led = led;
|
|
|
|
|
|
|
|
tpacpi_leds[led].led_classdev.brightness_set = &led_sysfs_set;
|
|
|
|
tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set;
|
|
|
|
if (led_supported == TPACPI_LED_570)
|
|
|
|
tpacpi_leds[led].led_classdev.brightness_get =
|
|
|
|
&led_sysfs_get;
|
|
|
|
|
|
|
|
tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led];
|
|
|
|
|
|
|
|
INIT_WORK(&tpacpi_leds[led].work, led_set_status_worker);
|
|
|
|
|
|
|
|
rc = led_classdev_register(&tpacpi_pdev->dev,
|
|
|
|
&tpacpi_leds[led].led_classdev);
|
|
|
|
if (rc < 0)
|
|
|
|
tpacpi_leds[led].led_classdev.name = NULL;
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init led_init(struct ibm_init_struct *iibm)
|
2005-08-17 12:00:00 +08:00
|
|
|
{
|
2008-04-26 12:02:25 +08:00
|
|
|
unsigned int i;
|
|
|
|
int rc;
|
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n");
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(led);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
if (!led_handle)
|
|
|
|
/* led not supported on R30, R31 */
|
2007-04-21 22:08:28 +08:00
|
|
|
led_supported = TPACPI_LED_NONE;
|
2005-08-17 12:00:00 +08:00
|
|
|
else if (strlencmp(led_path, "SLED") == 0)
|
|
|
|
/* 570 */
|
2007-04-21 22:08:28 +08:00
|
|
|
led_supported = TPACPI_LED_570;
|
2005-08-17 12:00:00 +08:00
|
|
|
else if (strlencmp(led_path, "SYSL") == 0)
|
|
|
|
/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
|
2007-04-21 22:08:28 +08:00
|
|
|
led_supported = TPACPI_LED_OLD;
|
2005-08-17 12:00:00 +08:00
|
|
|
else
|
|
|
|
/* all others */
|
2007-04-21 22:08:28 +08:00
|
|
|
led_supported = TPACPI_LED_NEW;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
|
|
|
|
str_supported(led_supported), led_supported);
|
|
|
|
|
2008-04-26 12:02:25 +08:00
|
|
|
tpacpi_leds = kzalloc(sizeof(*tpacpi_leds) * TPACPI_LED_NUMLEDS,
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!tpacpi_leds) {
|
|
|
|
printk(TPACPI_ERR "Out of memory for LED data\n");
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
|
2009-04-04 12:25:49 +08:00
|
|
|
if (!tpacpi_is_led_restricted(i)) {
|
|
|
|
rc = tpacpi_init_led(i);
|
|
|
|
if (rc < 0) {
|
|
|
|
led_exit();
|
|
|
|
return rc;
|
|
|
|
}
|
2008-04-26 12:02:25 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:49 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
|
|
|
|
if (led_supported != TPACPI_LED_NONE)
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"warning: userspace override of important "
|
|
|
|
"firmware LEDs is enabled\n");
|
|
|
|
#endif
|
2007-04-21 22:08:31 +08:00
|
|
|
return (led_supported != TPACPI_LED_NONE)? 0 : 1;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:23 +08:00
|
|
|
#define str_led_status(s) \
|
|
|
|
((s) == TPACPI_LED_OFF ? "off" : \
|
|
|
|
((s) == TPACPI_LED_ON ? "on" : "blinking"))
|
2005-08-17 12:00:00 +08:00
|
|
|
|
|
|
|
static int led_read(char *p)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
if (!led_supported) {
|
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
len += sprintf(p + len, "status:\t\tsupported\n");
|
|
|
|
|
2007-04-21 22:08:28 +08:00
|
|
|
if (led_supported == TPACPI_LED_570) {
|
2005-08-17 12:00:00 +08:00
|
|
|
/* 570 */
|
|
|
|
int i, status;
|
|
|
|
for (i = 0; i < 8; i++) {
|
2008-04-26 12:02:23 +08:00
|
|
|
status = led_get_status(i);
|
|
|
|
if (status < 0)
|
2005-08-17 12:00:00 +08:00
|
|
|
return -EIO;
|
|
|
|
len += sprintf(p + len, "%d:\t\t%s\n",
|
2008-04-26 12:02:23 +08:00
|
|
|
i, str_led_status(status));
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
len += sprintf(p + len, "commands:\t"
|
2005-08-17 12:00:00 +08:00
|
|
|
"<led> on, <led> off, <led> blink (<led> is 0-7)\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int led_write(char *buf)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
char *cmd;
|
2008-04-26 12:02:23 +08:00
|
|
|
int led, rc;
|
|
|
|
enum led_status_t s;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
|
|
|
if (!led_supported)
|
|
|
|
return -ENODEV;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
2005-08-17 12:00:00 +08:00
|
|
|
if (sscanf(cmd, "%d", &led) != 1 || led < 0 || led > 7)
|
2005-04-17 06:20:36 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
if (strstr(cmd, "off")) {
|
2008-04-26 12:02:23 +08:00
|
|
|
s = TPACPI_LED_OFF;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else if (strstr(cmd, "on")) {
|
2008-04-26 12:02:23 +08:00
|
|
|
s = TPACPI_LED_ON;
|
2005-08-17 12:00:00 +08:00
|
|
|
} else if (strstr(cmd, "blink")) {
|
2008-04-26 12:02:23 +08:00
|
|
|
s = TPACPI_LED_BLINK;
|
2005-08-17 12:00:00 +08:00
|
|
|
} else {
|
2008-04-26 12:02:23 +08:00
|
|
|
return -EINVAL;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
2008-04-26 12:02:23 +08:00
|
|
|
|
|
|
|
rc = led_set_status(led, s);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct led_driver_data = {
|
|
|
|
.name = "led",
|
|
|
|
.read = led_read,
|
|
|
|
.write = led_write,
|
2008-04-26 12:02:25 +08:00
|
|
|
.exit = led_exit,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Beep subdriver
|
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init beep_init(struct ibm_init_struct *iibm)
|
2007-04-21 22:08:31 +08:00
|
|
|
{
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n");
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(beep);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n",
|
|
|
|
str_supported(beep_handle != NULL));
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
return (beep_handle)? 0 : 1;
|
|
|
|
}
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int beep_read(char *p)
|
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
|
|
|
|
if (!beep_handle)
|
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
else {
|
|
|
|
len += sprintf(p + len, "status:\t\tsupported\n");
|
|
|
|
len += sprintf(p + len, "commands:\t<cmd> (<cmd> is 0-17)\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int beep_write(char *buf)
|
|
|
|
{
|
|
|
|
char *cmd;
|
|
|
|
int beep_cmd;
|
|
|
|
|
|
|
|
if (!beep_handle)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (sscanf(cmd, "%u", &beep_cmd) == 1 &&
|
|
|
|
beep_cmd >= 0 && beep_cmd <= 17) {
|
|
|
|
/* beep_cmd set */
|
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
if (!acpi_evalf(beep_handle, NULL, NULL, "vdd", beep_cmd, 0))
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct beep_driver_data = {
|
|
|
|
.name = "beep",
|
|
|
|
.read = beep_read,
|
|
|
|
.write = beep_write,
|
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Thermal subdriver
|
|
|
|
*/
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
enum thermal_access_mode {
|
|
|
|
TPACPI_THERMAL_NONE = 0, /* No thermal support */
|
|
|
|
TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */
|
|
|
|
TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */
|
|
|
|
TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */
|
|
|
|
TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum { /* TPACPI_THERMAL_TPEC_* */
|
|
|
|
TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */
|
|
|
|
TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */
|
|
|
|
TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */
|
|
|
|
};
|
|
|
|
|
|
|
|
#define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */
|
|
|
|
struct ibm_thermal_sensors_struct {
|
|
|
|
s32 temp[TPACPI_MAX_THERMAL_SENSORS];
|
|
|
|
};
|
|
|
|
|
2006-11-24 21:47:08 +08:00
|
|
|
static enum thermal_access_mode thermal_read_mode;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* idx is zero-based */
|
|
|
|
static int thermal_get_sensor(int idx, s32 *value)
|
|
|
|
{
|
|
|
|
int t;
|
|
|
|
s8 tmp;
|
|
|
|
char tmpi[5];
|
|
|
|
|
|
|
|
t = TP_EC_THERMAL_TMP0;
|
|
|
|
|
|
|
|
switch (thermal_read_mode) {
|
|
|
|
#if TPACPI_MAX_THERMAL_SENSORS >= 16
|
|
|
|
case TPACPI_THERMAL_TPEC_16:
|
|
|
|
if (idx >= 8 && idx <= 15) {
|
|
|
|
t = TP_EC_THERMAL_TMP8;
|
|
|
|
idx -= 8;
|
|
|
|
}
|
|
|
|
/* fallthrough */
|
|
|
|
#endif
|
|
|
|
case TPACPI_THERMAL_TPEC_8:
|
|
|
|
if (idx <= 7) {
|
|
|
|
if (!acpi_ec_read(t + idx, &tmp))
|
|
|
|
return -EIO;
|
|
|
|
*value = tmp * 1000;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case TPACPI_THERMAL_ACPI_UPDT:
|
|
|
|
if (idx <= 7) {
|
|
|
|
snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
|
|
|
|
if (!acpi_evalf(ec_handle, NULL, "UPDT", "v"))
|
|
|
|
return -EIO;
|
|
|
|
if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
|
|
|
|
return -EIO;
|
|
|
|
*value = (t - 2732) * 100;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case TPACPI_THERMAL_ACPI_TMP07:
|
|
|
|
if (idx <= 7) {
|
|
|
|
snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
|
|
|
|
if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
|
|
|
|
return -EIO;
|
|
|
|
if (t > 127 || t < -127)
|
|
|
|
t = TP_EC_THERMAL_TMP_NA;
|
|
|
|
*value = t * 1000;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case TPACPI_THERMAL_NONE:
|
|
|
|
default:
|
|
|
|
return -ENOSYS;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s)
|
|
|
|
{
|
|
|
|
int res, i;
|
|
|
|
int n;
|
|
|
|
|
|
|
|
n = 8;
|
|
|
|
i = 0;
|
|
|
|
|
|
|
|
if (!s)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (thermal_read_mode == TPACPI_THERMAL_TPEC_16)
|
|
|
|
n = 16;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
for (i = 0 ; i < n; i++) {
|
2008-01-08 23:02:45 +08:00
|
|
|
res = thermal_get_sensor(i, &s->temp[i]);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
return n;
|
|
|
|
}
|
2008-01-08 23:02:44 +08:00
|
|
|
|
2007-04-24 22:48:16 +08:00
|
|
|
/* sysfs temp##_input -------------------------------------------------- */
|
|
|
|
|
|
|
|
static ssize_t thermal_temp_input_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
struct sensor_device_attribute *sensor_attr =
|
|
|
|
to_sensor_dev_attr(attr);
|
|
|
|
int idx = sensor_attr->index;
|
|
|
|
s32 value;
|
|
|
|
int res;
|
|
|
|
|
|
|
|
res = thermal_get_sensor(idx, &value);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
if (value == TP_EC_THERMAL_TMP_NA * 1000)
|
|
|
|
return -ENXIO;
|
|
|
|
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", value);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \
|
2008-01-08 23:02:49 +08:00
|
|
|
SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \
|
|
|
|
thermal_temp_input_show, NULL, _idxB)
|
2007-04-24 22:48:16 +08:00
|
|
|
|
|
|
|
static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = {
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(1, 0),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(2, 1),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(3, 2),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(4, 3),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(5, 4),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(6, 5),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(7, 6),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(8, 7),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(9, 8),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(10, 9),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(11, 10),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(12, 11),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(13, 12),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(14, 13),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(15, 14),
|
|
|
|
THERMAL_SENSOR_ATTR_TEMP(16, 15),
|
|
|
|
};
|
|
|
|
|
|
|
|
#define THERMAL_ATTRS(X) \
|
|
|
|
&sensor_dev_attr_thermal_temp_input[X].dev_attr.attr
|
|
|
|
|
|
|
|
static struct attribute *thermal_temp_input_attr[] = {
|
|
|
|
THERMAL_ATTRS(8),
|
|
|
|
THERMAL_ATTRS(9),
|
|
|
|
THERMAL_ATTRS(10),
|
|
|
|
THERMAL_ATTRS(11),
|
|
|
|
THERMAL_ATTRS(12),
|
|
|
|
THERMAL_ATTRS(13),
|
|
|
|
THERMAL_ATTRS(14),
|
|
|
|
THERMAL_ATTRS(15),
|
|
|
|
THERMAL_ATTRS(0),
|
|
|
|
THERMAL_ATTRS(1),
|
|
|
|
THERMAL_ATTRS(2),
|
|
|
|
THERMAL_ATTRS(3),
|
|
|
|
THERMAL_ATTRS(4),
|
|
|
|
THERMAL_ATTRS(5),
|
|
|
|
THERMAL_ATTRS(6),
|
|
|
|
THERMAL_ATTRS(7),
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group thermal_temp_input16_group = {
|
|
|
|
.attrs = thermal_temp_input_attr
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group thermal_temp_input8_group = {
|
|
|
|
.attrs = &thermal_temp_input_attr[8]
|
|
|
|
};
|
|
|
|
|
|
|
|
#undef THERMAL_SENSOR_ATTR_TEMP
|
|
|
|
#undef THERMAL_ATTRS
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init thermal_init(struct ibm_init_struct *iibm)
|
2005-08-17 12:00:00 +08:00
|
|
|
{
|
2006-11-24 21:47:08 +08:00
|
|
|
u8 t, ta1, ta2;
|
|
|
|
int i;
|
2007-04-21 22:08:31 +08:00
|
|
|
int acpi_tmp7;
|
2007-04-24 22:48:16 +08:00
|
|
|
int res;
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n");
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv");
|
2006-11-24 21:47:08 +08:00
|
|
|
|
2007-07-19 10:45:46 +08:00
|
|
|
if (thinkpad_id.ec_model) {
|
2006-11-24 21:47:08 +08:00
|
|
|
/*
|
|
|
|
* Direct EC access mode: sensors at registers
|
|
|
|
* 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for
|
|
|
|
* non-implemented, thermal sensors return 0x80 when
|
|
|
|
* not available
|
|
|
|
*/
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2006-11-24 21:47:08 +08:00
|
|
|
ta1 = ta2 = 0;
|
|
|
|
for (i = 0; i < 8; i++) {
|
2007-04-21 22:08:43 +08:00
|
|
|
if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) {
|
2006-11-24 21:47:08 +08:00
|
|
|
ta1 |= t;
|
|
|
|
} else {
|
|
|
|
ta1 = 0;
|
|
|
|
break;
|
|
|
|
}
|
2007-04-21 22:08:43 +08:00
|
|
|
if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) {
|
2006-11-24 21:47:08 +08:00
|
|
|
ta2 |= t;
|
|
|
|
} else {
|
|
|
|
ta1 = 0;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (ta1 == 0) {
|
|
|
|
/* This is sheer paranoia, but we handle it anyway */
|
|
|
|
if (acpi_tmp7) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR
|
2006-11-24 21:47:08 +08:00
|
|
|
"ThinkPad ACPI EC access misbehaving, "
|
2008-01-08 23:02:49 +08:00
|
|
|
"falling back to ACPI TMPx access "
|
|
|
|
"mode\n");
|
2007-04-21 22:08:28 +08:00
|
|
|
thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
|
2006-11-24 21:47:08 +08:00
|
|
|
} else {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR
|
2006-11-24 21:47:08 +08:00
|
|
|
"ThinkPad ACPI EC access misbehaving, "
|
|
|
|
"disabling thermal sensors access\n");
|
2007-04-21 22:08:28 +08:00
|
|
|
thermal_read_mode = TPACPI_THERMAL_NONE;
|
2006-11-24 21:47:08 +08:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
thermal_read_mode =
|
|
|
|
(ta2 != 0) ?
|
2007-04-21 22:08:28 +08:00
|
|
|
TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8;
|
2006-11-24 21:47:08 +08:00
|
|
|
}
|
|
|
|
} else if (acpi_tmp7) {
|
2006-11-24 21:47:08 +08:00
|
|
|
if (acpi_evalf(ec_handle, NULL, "UPDT", "qv")) {
|
|
|
|
/* 600e/x, 770e, 770x */
|
2007-04-21 22:08:28 +08:00
|
|
|
thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT;
|
2006-11-24 21:47:08 +08:00
|
|
|
} else {
|
|
|
|
/* Standard ACPI TMPx access, max 8 sensors */
|
2007-04-21 22:08:28 +08:00
|
|
|
thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
|
2006-11-24 21:47:08 +08:00
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* temperatures not supported on 570, G4x, R30, R31, R32 */
|
2007-04-21 22:08:28 +08:00
|
|
|
thermal_read_mode = TPACPI_THERMAL_NONE;
|
2006-11-24 21:47:08 +08:00
|
|
|
}
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n",
|
|
|
|
str_supported(thermal_read_mode != TPACPI_THERMAL_NONE),
|
|
|
|
thermal_read_mode);
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
switch (thermal_read_mode) {
|
2007-04-24 22:48:16 +08:00
|
|
|
case TPACPI_THERMAL_TPEC_16:
|
2007-09-25 17:38:03 +08:00
|
|
|
res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
|
2007-04-24 22:48:16 +08:00
|
|
|
&thermal_temp_input16_group);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
break;
|
|
|
|
case TPACPI_THERMAL_TPEC_8:
|
|
|
|
case TPACPI_THERMAL_ACPI_TMP07:
|
|
|
|
case TPACPI_THERMAL_ACPI_UPDT:
|
2007-09-25 17:38:03 +08:00
|
|
|
res = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
|
2007-04-24 22:48:16 +08:00
|
|
|
&thermal_temp_input8_group);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
break;
|
|
|
|
case TPACPI_THERMAL_NONE:
|
|
|
|
default:
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void thermal_exit(void)
|
|
|
|
{
|
2008-01-08 23:02:49 +08:00
|
|
|
switch (thermal_read_mode) {
|
2007-04-24 22:48:16 +08:00
|
|
|
case TPACPI_THERMAL_TPEC_16:
|
2007-09-25 17:38:03 +08:00
|
|
|
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj,
|
2007-04-24 22:48:16 +08:00
|
|
|
&thermal_temp_input16_group);
|
|
|
|
break;
|
|
|
|
case TPACPI_THERMAL_TPEC_8:
|
|
|
|
case TPACPI_THERMAL_ACPI_TMP07:
|
|
|
|
case TPACPI_THERMAL_ACPI_UPDT:
|
2007-09-25 17:38:03 +08:00
|
|
|
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj,
|
2007-04-24 22:48:16 +08:00
|
|
|
&thermal_temp_input16_group);
|
|
|
|
break;
|
|
|
|
case TPACPI_THERMAL_NONE:
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2006-11-24 21:47:08 +08:00
|
|
|
static int thermal_read(char *p)
|
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
int n, i;
|
|
|
|
struct ibm_thermal_sensors_struct t;
|
|
|
|
|
|
|
|
n = thermal_get_sensors(&t);
|
|
|
|
if (unlikely(n < 0))
|
|
|
|
return n;
|
|
|
|
|
|
|
|
len += sprintf(p + len, "temperatures:\t");
|
|
|
|
|
|
|
|
if (n > 0) {
|
|
|
|
for (i = 0; i < (n - 1); i++)
|
|
|
|
len += sprintf(p + len, "%d ", t.temp[i] / 1000);
|
|
|
|
len += sprintf(p + len, "%d\n", t.temp[i] / 1000);
|
|
|
|
} else
|
|
|
|
len += sprintf(p + len, "not supported\n");
|
2005-08-17 12:00:00 +08:00
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct thermal_driver_data = {
|
|
|
|
.name = "thermal",
|
|
|
|
.read = thermal_read,
|
2007-04-24 22:48:16 +08:00
|
|
|
.exit = thermal_exit,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* EC Dump subdriver
|
|
|
|
*/
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static u8 ecdump_regs[256];
|
|
|
|
|
|
|
|
static int ecdump_read(char *p)
|
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
int i, j;
|
|
|
|
u8 v;
|
|
|
|
|
|
|
|
len += sprintf(p + len, "EC "
|
|
|
|
" +00 +01 +02 +03 +04 +05 +06 +07"
|
|
|
|
" +08 +09 +0a +0b +0c +0d +0e +0f\n");
|
|
|
|
for (i = 0; i < 256; i += 16) {
|
|
|
|
len += sprintf(p + len, "EC 0x%02x:", i);
|
|
|
|
for (j = 0; j < 16; j++) {
|
|
|
|
if (!acpi_ec_read(i + j, &v))
|
|
|
|
break;
|
|
|
|
if (v != ecdump_regs[i + j])
|
|
|
|
len += sprintf(p + len, " *%02x", v);
|
|
|
|
else
|
|
|
|
len += sprintf(p + len, " %02x", v);
|
|
|
|
ecdump_regs[i + j] = v;
|
|
|
|
}
|
|
|
|
len += sprintf(p + len, "\n");
|
|
|
|
if (j != 16)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* These are way too dangerous to advertise openly... */
|
|
|
|
#if 0
|
|
|
|
len += sprintf(p + len, "commands:\t0x<offset> 0x<value>"
|
|
|
|
" (<offset> is 00-ff, <value> is 00-ff)\n");
|
|
|
|
len += sprintf(p + len, "commands:\t0x<offset> <value> "
|
|
|
|
" (<offset> is 00-ff, <value> is 0-255)\n");
|
|
|
|
#endif
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ecdump_write(char *buf)
|
|
|
|
{
|
|
|
|
char *cmd;
|
|
|
|
int i, v;
|
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (sscanf(cmd, "0x%x 0x%x", &i, &v) == 2) {
|
|
|
|
/* i and v set */
|
|
|
|
} else if (sscanf(cmd, "0x%x %u", &i, &v) == 2) {
|
|
|
|
/* i and v set */
|
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
if (i >= 0 && i < 256 && v >= 0 && v < 256) {
|
|
|
|
if (!acpi_ec_write(i, v))
|
2005-04-17 06:20:36 +08:00
|
|
|
return -EIO;
|
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct ecdump_driver_data = {
|
|
|
|
.name = "ecdump",
|
|
|
|
.read = ecdump_read,
|
|
|
|
.write = ecdump_write,
|
2007-04-21 22:08:35 +08:00
|
|
|
.flags.experimental = 1,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Backlight/brightness subdriver
|
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
|
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
/*
|
|
|
|
* ThinkPads can read brightness from two places: EC HBRV (0x31), or
|
|
|
|
* CMOS NVRAM byte 0x5E, bits 0-3.
|
|
|
|
*
|
|
|
|
* EC HBRV (0x31) has the following layout
|
|
|
|
* Bit 7: unknown function
|
|
|
|
* Bit 6: unknown function
|
|
|
|
* Bit 5: Z: honour scale changes, NZ: ignore scale changes
|
|
|
|
* Bit 4: must be set to zero to avoid problems
|
|
|
|
* Bit 3-0: backlight brightness level
|
|
|
|
*
|
|
|
|
* brightness_get_raw returns status data in the HBRV layout
|
|
|
|
*/
|
|
|
|
|
2008-04-26 12:02:21 +08:00
|
|
|
enum {
|
|
|
|
TP_EC_BACKLIGHT = 0x31,
|
|
|
|
|
|
|
|
/* TP_EC_BACKLIGHT bitmasks */
|
|
|
|
TP_EC_BACKLIGHT_LVLMSK = 0x1F,
|
|
|
|
TP_EC_BACKLIGHT_CMDMSK = 0xE0,
|
|
|
|
TP_EC_BACKLIGHT_MAPSW = 0x20,
|
|
|
|
};
|
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
enum tpacpi_brightness_access_mode {
|
|
|
|
TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */
|
|
|
|
TPACPI_BRGHT_MODE_EC, /* EC control */
|
|
|
|
TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */
|
|
|
|
TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */
|
|
|
|
TPACPI_BRGHT_MODE_MAX
|
|
|
|
};
|
|
|
|
|
2007-07-19 10:45:27 +08:00
|
|
|
static struct backlight_device *ibm_backlight_device;
|
2009-04-04 12:25:53 +08:00
|
|
|
|
|
|
|
static enum tpacpi_brightness_access_mode brightness_mode =
|
|
|
|
TPACPI_BRGHT_MODE_MAX;
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static struct mutex brightness_mutex;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
/* NVRAM brightness access,
|
|
|
|
* call with brightness_mutex held! */
|
|
|
|
static unsigned int tpacpi_brightness_nvram_get(void)
|
2008-01-08 23:02:45 +08:00
|
|
|
{
|
2009-04-04 12:25:53 +08:00
|
|
|
u8 lnvram;
|
2008-01-08 23:02:45 +08:00
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
|
|
|
|
& TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
|
|
|
|
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
|
|
|
|
lnvram &= (tp_features.bright_16levels) ? 0x0f : 0x07;
|
|
|
|
|
|
|
|
return lnvram;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void tpacpi_brightness_checkpoint_nvram(void)
|
|
|
|
{
|
|
|
|
u8 lec = 0;
|
|
|
|
u8 b_nvram;
|
|
|
|
|
|
|
|
if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM)
|
|
|
|
return;
|
|
|
|
|
|
|
|
vdbg_printk(TPACPI_DBG_BRGHT,
|
|
|
|
"trying to checkpoint backlight level to NVRAM...\n");
|
|
|
|
|
|
|
|
if (mutex_lock_killable(&brightness_mutex) < 0)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
|
|
|
|
goto unlock;
|
|
|
|
lec &= TP_EC_BACKLIGHT_LVLMSK;
|
|
|
|
b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
|
|
|
|
|
|
|
|
if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
|
|
|
|
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) {
|
|
|
|
/* NVRAM needs update */
|
|
|
|
b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS <<
|
|
|
|
TP_NVRAM_POS_LEVEL_BRIGHTNESS);
|
|
|
|
b_nvram |= lec;
|
|
|
|
nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS);
|
|
|
|
dbg_printk(TPACPI_DBG_BRGHT,
|
|
|
|
"updated NVRAM backlight level to %u (0x%02x)\n",
|
|
|
|
(unsigned int) lec, (unsigned int) b_nvram);
|
|
|
|
} else
|
|
|
|
vdbg_printk(TPACPI_DBG_BRGHT,
|
|
|
|
"NVRAM backlight level already is %u (0x%02x)\n",
|
|
|
|
(unsigned int) lec, (unsigned int) b_nvram);
|
|
|
|
|
|
|
|
unlock:
|
|
|
|
mutex_unlock(&brightness_mutex);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* call with brightness_mutex held! */
|
|
|
|
static int tpacpi_brightness_get_raw(int *status)
|
|
|
|
{
|
|
|
|
u8 lec = 0;
|
|
|
|
|
|
|
|
switch (brightness_mode) {
|
|
|
|
case TPACPI_BRGHT_MODE_UCMS_STEP:
|
|
|
|
*status = tpacpi_brightness_nvram_get();
|
|
|
|
return 0;
|
|
|
|
case TPACPI_BRGHT_MODE_EC:
|
|
|
|
case TPACPI_BRGHT_MODE_ECNVRAM:
|
|
|
|
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
|
2008-04-26 12:02:20 +08:00
|
|
|
return -EIO;
|
2009-04-04 12:25:53 +08:00
|
|
|
*status = lec;
|
|
|
|
return 0;
|
|
|
|
default:
|
|
|
|
return -ENXIO;
|
2008-01-08 23:02:45 +08:00
|
|
|
}
|
2009-04-04 12:25:53 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* call with brightness_mutex held! */
|
|
|
|
/* do NOT call with illegal backlight level value */
|
|
|
|
static int tpacpi_brightness_set_ec(unsigned int value)
|
|
|
|
{
|
|
|
|
u8 lec = 0;
|
|
|
|
|
|
|
|
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT,
|
|
|
|
(lec & TP_EC_BACKLIGHT_CMDMSK) |
|
|
|
|
(value & TP_EC_BACKLIGHT_LVLMSK))))
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* call with brightness_mutex held! */
|
|
|
|
static int tpacpi_brightness_set_ucmsstep(unsigned int value)
|
|
|
|
{
|
|
|
|
int cmos_cmd, inc;
|
|
|
|
unsigned int current_value, i;
|
|
|
|
|
|
|
|
current_value = tpacpi_brightness_nvram_get();
|
|
|
|
|
|
|
|
if (value == current_value)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
cmos_cmd = (value > current_value) ?
|
|
|
|
TP_CMOS_BRIGHTNESS_UP :
|
|
|
|
TP_CMOS_BRIGHTNESS_DOWN;
|
|
|
|
inc = (value > current_value) ? 1 : -1;
|
|
|
|
|
|
|
|
for (i = current_value; i != value; i += inc)
|
|
|
|
if (issue_thinkpad_cmos_command(cmos_cmd))
|
|
|
|
return -EIO;
|
2008-01-08 23:02:45 +08:00
|
|
|
|
2008-04-26 12:02:21 +08:00
|
|
|
return 0;
|
2008-01-08 23:02:45 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* May return EINTR which can always be mapped to ERESTARTSYS */
|
2009-04-04 12:25:53 +08:00
|
|
|
static int brightness_set(unsigned int value)
|
2008-01-08 23:02:45 +08:00
|
|
|
{
|
2009-04-04 12:25:53 +08:00
|
|
|
int res;
|
2008-01-08 23:02:45 +08:00
|
|
|
|
2008-04-26 12:02:21 +08:00
|
|
|
if (value > ((tp_features.bright_16levels)? 15 : 7) ||
|
|
|
|
value < 0)
|
2008-01-08 23:02:45 +08:00
|
|
|
return -EINVAL;
|
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_BRGHT,
|
|
|
|
"set backlight level to %d\n", value);
|
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
res = mutex_lock_killable(&brightness_mutex);
|
2008-01-08 23:02:45 +08:00
|
|
|
if (res < 0)
|
|
|
|
return res;
|
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
switch (brightness_mode) {
|
|
|
|
case TPACPI_BRGHT_MODE_EC:
|
|
|
|
case TPACPI_BRGHT_MODE_ECNVRAM:
|
|
|
|
res = tpacpi_brightness_set_ec(value);
|
|
|
|
break;
|
|
|
|
case TPACPI_BRGHT_MODE_UCMS_STEP:
|
|
|
|
res = tpacpi_brightness_set_ucmsstep(value);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
res = -ENXIO;
|
2008-01-08 23:02:45 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
mutex_unlock(&brightness_mutex);
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* sysfs backlight class ----------------------------------------------- */
|
|
|
|
|
|
|
|
static int brightness_update_status(struct backlight_device *bd)
|
|
|
|
{
|
2009-04-04 12:25:53 +08:00
|
|
|
unsigned int level =
|
2008-01-08 23:02:45 +08:00
|
|
|
(bd->props.fb_blank == FB_BLANK_UNBLANK &&
|
|
|
|
bd->props.power == FB_BLANK_UNBLANK) ?
|
2009-04-04 12:25:53 +08:00
|
|
|
bd->props.brightness : 0;
|
|
|
|
|
|
|
|
dbg_printk(TPACPI_DBG_BRGHT,
|
|
|
|
"backlight: attempt to set level to %d\n",
|
|
|
|
level);
|
|
|
|
|
|
|
|
/* it is the backlight class's job (caller) to handle
|
|
|
|
* EINTR and other errors properly */
|
|
|
|
return brightness_set(level);
|
2008-01-08 23:02:45 +08:00
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:21 +08:00
|
|
|
static int brightness_get(struct backlight_device *bd)
|
2007-10-31 03:46:20 +08:00
|
|
|
{
|
2008-04-26 12:02:21 +08:00
|
|
|
int status, res;
|
2007-10-31 03:46:20 +08:00
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
res = mutex_lock_killable(&brightness_mutex);
|
2008-04-26 12:02:21 +08:00
|
|
|
if (res < 0)
|
2009-04-04 12:25:53 +08:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
res = tpacpi_brightness_get_raw(&status);
|
|
|
|
|
|
|
|
mutex_unlock(&brightness_mutex);
|
|
|
|
|
|
|
|
if (res < 0)
|
|
|
|
return 0;
|
2007-10-31 03:46:22 +08:00
|
|
|
|
2008-04-26 12:02:21 +08:00
|
|
|
return status & TP_EC_BACKLIGHT_LVLMSK;
|
2007-10-31 03:46:22 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static struct backlight_ops ibm_backlight_data = {
|
2008-01-08 23:02:49 +08:00
|
|
|
.get_brightness = brightness_get,
|
|
|
|
.update_status = brightness_update_status,
|
2007-03-24 04:33:57 +08:00
|
|
|
};
|
2007-10-31 03:46:22 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* --------------------------------------------------------------------- */
|
2007-10-31 03:46:22 +08:00
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init brightness_init(struct ibm_init_struct *iibm)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
|
|
|
int b;
|
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n");
|
|
|
|
|
2007-07-19 10:45:48 +08:00
|
|
|
mutex_init(&brightness_mutex);
|
|
|
|
|
2008-04-26 12:02:17 +08:00
|
|
|
/*
|
|
|
|
* We always attempt to detect acpi support, so as to switch
|
|
|
|
* Lenovo Vista BIOS to ACPI brightness mode even if we are not
|
|
|
|
* going to publish a backlight interface
|
|
|
|
*/
|
|
|
|
b = tpacpi_check_std_acpi_brightness_support();
|
|
|
|
if (b > 0) {
|
2008-08-01 23:38:03 +08:00
|
|
|
|
|
|
|
if (acpi_video_backlight_support()) {
|
|
|
|
if (brightness_enable > 1) {
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"Standard ACPI backlight interface "
|
|
|
|
"available, not loading native one.\n");
|
|
|
|
return 1;
|
|
|
|
} else if (brightness_enable == 1) {
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"Backlight control force enabled, even if standard "
|
|
|
|
"ACPI backlight interface is available\n");
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (brightness_enable > 1) {
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"Standard ACPI backlight interface not "
|
|
|
|
"available, thinkpad_acpi native "
|
|
|
|
"brightness control enabled\n");
|
|
|
|
}
|
2007-10-31 03:46:22 +08:00
|
|
|
}
|
2007-10-31 04:02:07 +08:00
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:17 +08:00
|
|
|
if (!brightness_enable) {
|
2009-04-04 12:25:53 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
|
2008-04-26 12:02:17 +08:00
|
|
|
"brightness support disabled by "
|
|
|
|
"module parameter\n");
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (b > 16) {
|
|
|
|
printk(TPACPI_ERR
|
|
|
|
"Unsupported brightness interface, "
|
|
|
|
"please contact %s\n", TPACPI_MAIL);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
if (b == 16)
|
|
|
|
tp_features.bright_16levels = 1;
|
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
/*
|
|
|
|
* Check for module parameter bogosity, note that we
|
|
|
|
* init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
|
|
|
|
* able to detect "unspecified"
|
|
|
|
*/
|
|
|
|
if (brightness_mode > TPACPI_BRGHT_MODE_MAX)
|
|
|
|
return -EINVAL;
|
2007-07-19 10:45:43 +08:00
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
/* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */
|
|
|
|
if (brightness_mode == TPACPI_BRGHT_MODE_AUTO ||
|
|
|
|
brightness_mode == TPACPI_BRGHT_MODE_MAX) {
|
|
|
|
if (thinkpad_id.vendor == PCI_VENDOR_ID_IBM) {
|
|
|
|
/*
|
|
|
|
* IBM models that define HBRV probably have
|
|
|
|
* EC-based backlight level control
|
|
|
|
*/
|
|
|
|
if (acpi_evalf(ec_handle, NULL, "HBRV", "qd"))
|
|
|
|
/* T40-T43, R50-R52, R50e, R51e, X31-X41 */
|
|
|
|
brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM;
|
|
|
|
else
|
|
|
|
/* all other IBM ThinkPads */
|
|
|
|
brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP;
|
|
|
|
} else
|
|
|
|
/* All Lenovo ThinkPads */
|
|
|
|
brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP;
|
2007-07-19 10:45:43 +08:00
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
dbg_printk(TPACPI_DBG_BRGHT,
|
|
|
|
"selected brightness_mode=%d\n",
|
|
|
|
brightness_mode);
|
|
|
|
}
|
2007-07-19 10:45:43 +08:00
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
if (tpacpi_brightness_get_raw(&b) < 0)
|
2007-07-19 10:45:43 +08:00
|
|
|
return 1;
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-10-31 03:46:20 +08:00
|
|
|
if (tp_features.bright_16levels)
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_INFO
|
|
|
|
"detected a 16-level brightness capable ThinkPad\n");
|
2007-10-31 03:46:20 +08:00
|
|
|
|
2007-04-24 22:48:20 +08:00
|
|
|
ibm_backlight_device = backlight_device_register(
|
|
|
|
TPACPI_BACKLIGHT_DEV_NAME, NULL, NULL,
|
|
|
|
&ibm_backlight_data);
|
2007-03-24 04:33:57 +08:00
|
|
|
if (IS_ERR(ibm_backlight_device)) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "Could not register backlight device\n");
|
2007-03-24 04:33:57 +08:00
|
|
|
return PTR_ERR(ibm_backlight_device);
|
|
|
|
}
|
2009-04-04 12:25:53 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
|
|
|
|
"brightness is supported\n");
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-10-31 03:46:20 +08:00
|
|
|
ibm_backlight_device->props.max_brightness =
|
|
|
|
(tp_features.bright_16levels)? 15 : 7;
|
2008-04-26 12:02:21 +08:00
|
|
|
ibm_backlight_device->props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
|
2007-03-24 04:33:57 +08:00
|
|
|
backlight_update_status(ibm_backlight_device);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
static void brightness_suspend(pm_message_t state)
|
|
|
|
{
|
|
|
|
tpacpi_brightness_checkpoint_nvram();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void brightness_shutdown(void)
|
|
|
|
{
|
|
|
|
tpacpi_brightness_checkpoint_nvram();
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
static void brightness_exit(void)
|
|
|
|
{
|
|
|
|
if (ibm_backlight_device) {
|
2009-04-04 12:25:53 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT,
|
2007-04-21 22:08:32 +08:00
|
|
|
"calling backlight_device_unregister()\n");
|
2007-03-24 04:33:57 +08:00
|
|
|
backlight_device_unregister(ibm_backlight_device);
|
|
|
|
}
|
2009-04-04 12:25:53 +08:00
|
|
|
|
|
|
|
tpacpi_brightness_checkpoint_nvram();
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int brightness_read(char *p)
|
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
int level;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
level = brightness_get(NULL);
|
|
|
|
if (level < 0) {
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "level:\t\tunreadable\n");
|
|
|
|
} else {
|
2007-10-31 03:46:20 +08:00
|
|
|
len += sprintf(p + len, "level:\t\t%d\n", level);
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "commands:\tup, down\n");
|
|
|
|
len += sprintf(p + len, "commands:\tlevel <level>"
|
2007-10-31 03:46:20 +08:00
|
|
|
" (<level> is 0-%d)\n",
|
|
|
|
(tp_features.bright_16levels) ? 15 : 7);
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
2006-10-21 05:30:28 +08:00
|
|
|
static int brightness_write(char *buf)
|
|
|
|
{
|
|
|
|
int level;
|
2007-10-31 03:46:25 +08:00
|
|
|
int rc;
|
2005-04-17 06:20:36 +08:00
|
|
|
char *cmd;
|
2007-10-31 03:46:20 +08:00
|
|
|
int max_level = (tp_features.bright_16levels) ? 15 : 7;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-10-31 03:46:25 +08:00
|
|
|
level = brightness_get(NULL);
|
|
|
|
if (level < 0)
|
|
|
|
return level;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-10-31 03:46:25 +08:00
|
|
|
while ((cmd = next_cmd(&buf))) {
|
2005-08-17 12:00:00 +08:00
|
|
|
if (strlencmp(cmd, "up") == 0) {
|
2007-10-31 03:46:25 +08:00
|
|
|
if (level < max_level)
|
|
|
|
level++;
|
2005-08-17 12:00:00 +08:00
|
|
|
} else if (strlencmp(cmd, "down") == 0) {
|
2007-10-31 03:46:25 +08:00
|
|
|
if (level > 0)
|
|
|
|
level--;
|
|
|
|
} else if (sscanf(cmd, "level %d", &level) == 1 &&
|
|
|
|
level >= 0 && level <= max_level) {
|
|
|
|
/* new level set */
|
2005-08-17 12:00:00 +08:00
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
tpacpi_disclose_usertask("procfs brightness",
|
|
|
|
"set level to %d\n", level);
|
|
|
|
|
2007-10-31 03:46:25 +08:00
|
|
|
/*
|
|
|
|
* Now we know what the final level should be, so we try to set it.
|
|
|
|
* Doing it this way makes the syscall restartable in case of EINTR
|
|
|
|
*/
|
|
|
|
rc = brightness_set(level);
|
|
|
|
return (rc == -EINTR)? ERESTARTSYS : rc;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct brightness_driver_data = {
|
|
|
|
.name = "brightness",
|
|
|
|
.read = brightness_read,
|
|
|
|
.write = brightness_write,
|
|
|
|
.exit = brightness_exit,
|
2009-04-04 12:25:53 +08:00
|
|
|
.suspend = brightness_suspend,
|
|
|
|
.shutdown = brightness_shutdown,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*************************************************************************
|
|
|
|
* Volume subdriver
|
|
|
|
*/
|
2006-11-26 02:35:09 +08:00
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
static int volume_offset = 0x30;
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
static int volume_read(char *p)
|
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
u8 level;
|
|
|
|
|
|
|
|
if (!acpi_ec_read(volume_offset, &level)) {
|
|
|
|
len += sprintf(p + len, "level:\t\tunreadable\n");
|
|
|
|
} else {
|
|
|
|
len += sprintf(p + len, "level:\t\t%d\n", level & 0xf);
|
|
|
|
len += sprintf(p + len, "mute:\t\t%s\n", onoff(level, 6));
|
|
|
|
len += sprintf(p + len, "commands:\tup, down, mute\n");
|
|
|
|
len += sprintf(p + len, "commands:\tlevel <level>"
|
|
|
|
" (<level> is 0-15)\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int volume_write(char *buf)
|
|
|
|
{
|
|
|
|
int cmos_cmd, inc, i;
|
|
|
|
u8 level, mute;
|
|
|
|
int new_level, new_mute;
|
|
|
|
char *cmd;
|
|
|
|
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
|
|
if (!acpi_ec_read(volume_offset, &level))
|
|
|
|
return -EIO;
|
|
|
|
new_mute = mute = level & 0x40;
|
|
|
|
new_level = level = level & 0xf;
|
|
|
|
|
|
|
|
if (strlencmp(cmd, "up") == 0) {
|
|
|
|
if (mute)
|
|
|
|
new_mute = 0;
|
|
|
|
else
|
|
|
|
new_level = level == 15 ? 15 : level + 1;
|
|
|
|
} else if (strlencmp(cmd, "down") == 0) {
|
|
|
|
if (mute)
|
|
|
|
new_mute = 0;
|
|
|
|
else
|
|
|
|
new_level = level == 0 ? 0 : level - 1;
|
|
|
|
} else if (sscanf(cmd, "level %d", &new_level) == 1 &&
|
|
|
|
new_level >= 0 && new_level <= 15) {
|
|
|
|
/* new_level set */
|
|
|
|
} else if (strlencmp(cmd, "mute") == 0) {
|
|
|
|
new_mute = 0x40;
|
2005-04-17 06:20:36 +08:00
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
if (new_level != level) {
|
|
|
|
/* mute doesn't change */
|
|
|
|
|
|
|
|
cmos_cmd = (new_level > level) ?
|
|
|
|
TP_CMOS_VOLUME_UP : TP_CMOS_VOLUME_DOWN;
|
2005-08-17 12:00:00 +08:00
|
|
|
inc = new_level > level ? 1 : -1;
|
|
|
|
|
2007-04-21 22:08:42 +08:00
|
|
|
if (mute && (issue_thinkpad_cmos_command(cmos_cmd) ||
|
2005-08-17 12:00:00 +08:00
|
|
|
!acpi_ec_write(volume_offset, level)))
|
|
|
|
return -EIO;
|
|
|
|
|
|
|
|
for (i = level; i != new_level; i += inc)
|
2007-04-21 22:08:42 +08:00
|
|
|
if (issue_thinkpad_cmos_command(cmos_cmd) ||
|
2005-08-17 12:00:00 +08:00
|
|
|
!acpi_ec_write(volume_offset, i + inc))
|
|
|
|
return -EIO;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
if (mute &&
|
|
|
|
(issue_thinkpad_cmos_command(TP_CMOS_VOLUME_MUTE) ||
|
|
|
|
!acpi_ec_write(volume_offset, new_level + mute))) {
|
2005-08-17 12:00:00 +08:00
|
|
|
return -EIO;
|
2008-01-08 23:02:49 +08:00
|
|
|
}
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
if (new_mute != mute) {
|
|
|
|
/* level doesn't change */
|
|
|
|
|
|
|
|
cmos_cmd = (new_mute) ?
|
|
|
|
TP_CMOS_VOLUME_MUTE : TP_CMOS_VOLUME_UP;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-21 22:08:42 +08:00
|
|
|
if (issue_thinkpad_cmos_command(cmos_cmd) ||
|
2005-08-17 12:00:00 +08:00
|
|
|
!acpi_ec_write(volume_offset, level + new_mute))
|
|
|
|
return -EIO;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct volume_driver_data = {
|
|
|
|
.name = "volume",
|
|
|
|
.read = volume_read,
|
|
|
|
.write = volume_write,
|
|
|
|
};
|
2007-03-24 04:33:57 +08:00
|
|
|
|
|
|
|
/*************************************************************************
|
|
|
|
* Fan subdriver
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* FAN ACCESS MODES
|
|
|
|
*
|
2007-04-21 22:08:28 +08:00
|
|
|
* TPACPI_FAN_RD_ACPI_GFAN:
|
2007-03-24 04:33:57 +08:00
|
|
|
* ACPI GFAN method: returns fan level
|
|
|
|
*
|
2007-04-21 22:08:28 +08:00
|
|
|
* see TPACPI_FAN_WR_ACPI_SFAN
|
2007-04-21 22:08:29 +08:00
|
|
|
* EC 0x2f (HFSP) not available if GFAN exists
|
2007-03-24 04:33:57 +08:00
|
|
|
*
|
2007-04-21 22:08:28 +08:00
|
|
|
* TPACPI_FAN_WR_ACPI_SFAN:
|
2007-03-24 04:33:57 +08:00
|
|
|
* ACPI SFAN method: sets fan level, 0 (stop) to 7 (max)
|
|
|
|
*
|
2007-04-21 22:08:29 +08:00
|
|
|
* EC 0x2f (HFSP) might be available *for reading*, but do not use
|
|
|
|
* it for writing.
|
2007-03-24 04:33:57 +08:00
|
|
|
*
|
2007-04-21 22:08:28 +08:00
|
|
|
* TPACPI_FAN_WR_TPEC:
|
2007-04-21 22:08:29 +08:00
|
|
|
* ThinkPad EC register 0x2f (HFSP): fan control loop mode
|
|
|
|
* Supported on almost all ThinkPads
|
2007-03-24 04:33:57 +08:00
|
|
|
*
|
|
|
|
* Fan speed changes of any sort (including those caused by the
|
|
|
|
* disengaged mode) are usually done slowly by the firmware as the
|
|
|
|
* maximum ammount of fan duty cycle change per second seems to be
|
|
|
|
* limited.
|
|
|
|
*
|
|
|
|
* Reading is not available if GFAN exists.
|
|
|
|
* Writing is not available if SFAN exists.
|
|
|
|
*
|
|
|
|
* Bits
|
|
|
|
* 7 automatic mode engaged;
|
|
|
|
* (default operation mode of the ThinkPad)
|
|
|
|
* fan level is ignored in this mode.
|
2007-04-21 22:08:29 +08:00
|
|
|
* 6 full speed mode (takes precedence over bit 7);
|
2007-03-24 04:33:57 +08:00
|
|
|
* not available on all thinkpads. May disable
|
2007-04-21 22:08:29 +08:00
|
|
|
* the tachometer while the fan controller ramps up
|
|
|
|
* the speed (which can take up to a few *minutes*).
|
|
|
|
* Speeds up fan to 100% duty-cycle, which is far above
|
|
|
|
* the standard RPM levels. It is not impossible that
|
|
|
|
* it could cause hardware damage.
|
2007-03-24 04:33:57 +08:00
|
|
|
* 5-3 unused in some models. Extra bits for fan level
|
|
|
|
* in others, but still useless as all values above
|
|
|
|
* 7 map to the same speed as level 7 in these models.
|
|
|
|
* 2-0 fan level (0..7 usually)
|
|
|
|
* 0x00 = stop
|
|
|
|
* 0x07 = max (set when temperatures critical)
|
|
|
|
* Some ThinkPads may have other levels, see
|
2007-04-21 22:08:28 +08:00
|
|
|
* TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41)
|
2007-03-24 04:33:57 +08:00
|
|
|
*
|
|
|
|
* FIRMWARE BUG: on some models, EC 0x2f might not be initialized at
|
|
|
|
* boot. Apparently the EC does not intialize it, so unless ACPI DSDT
|
|
|
|
* does so, its initial value is meaningless (0x07).
|
|
|
|
*
|
|
|
|
* For firmware bugs, refer to:
|
|
|
|
* http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
|
|
|
|
*
|
|
|
|
* ----
|
|
|
|
*
|
|
|
|
* ThinkPad EC register 0x84 (LSB), 0x85 (MSB):
|
|
|
|
* Main fan tachometer reading (in RPM)
|
|
|
|
*
|
|
|
|
* This register is present on all ThinkPads with a new-style EC, and
|
|
|
|
* it is known not to be present on the A21m/e, and T22, as there is
|
|
|
|
* something else in offset 0x84 according to the ACPI DSDT. Other
|
|
|
|
* ThinkPads from this same time period (and earlier) probably lack the
|
|
|
|
* tachometer as well.
|
|
|
|
*
|
2009-01-26 18:06:57 +08:00
|
|
|
* Unfortunately a lot of ThinkPads with new-style ECs but whose firmware
|
2007-03-24 04:33:57 +08:00
|
|
|
* was never fixed by IBM to report the EC firmware version string
|
|
|
|
* probably support the tachometer (like the early X models), so
|
|
|
|
* detecting it is quite hard. We need more data to know for sure.
|
|
|
|
*
|
|
|
|
* FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings
|
|
|
|
* might result.
|
|
|
|
*
|
2007-04-21 22:08:29 +08:00
|
|
|
* FIRMWARE BUG: may go stale while the EC is switching to full speed
|
|
|
|
* mode.
|
2007-03-24 04:33:57 +08:00
|
|
|
*
|
|
|
|
* For firmware bugs, refer to:
|
|
|
|
* http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
|
|
|
|
*
|
2007-04-21 22:08:28 +08:00
|
|
|
* TPACPI_FAN_WR_ACPI_FANS:
|
2007-03-24 04:33:57 +08:00
|
|
|
* ThinkPad X31, X40, X41. Not available in the X60.
|
|
|
|
*
|
|
|
|
* FANS ACPI handle: takes three arguments: low speed, medium speed,
|
|
|
|
* high speed. ACPI DSDT seems to map these three speeds to levels
|
|
|
|
* as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH
|
|
|
|
* (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3")
|
|
|
|
*
|
|
|
|
* The speeds are stored on handles
|
|
|
|
* (FANA:FAN9), (FANC:FANB), (FANE:FAND).
|
|
|
|
*
|
|
|
|
* There are three default speed sets, acessible as handles:
|
|
|
|
* FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H
|
|
|
|
*
|
|
|
|
* ACPI DSDT switches which set is in use depending on various
|
|
|
|
* factors.
|
|
|
|
*
|
2007-04-21 22:08:28 +08:00
|
|
|
* TPACPI_FAN_WR_TPEC is also available and should be used to
|
2007-03-24 04:33:57 +08:00
|
|
|
* command the fan. The X31/X40/X41 seems to have 8 fan levels,
|
|
|
|
* but the ACPI tables just mention level 7.
|
|
|
|
*/
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
enum { /* Fan control constants */
|
|
|
|
fan_status_offset = 0x2f, /* EC register 0x2f */
|
|
|
|
fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM)
|
|
|
|
* 0x84 must be read before 0x85 */
|
|
|
|
|
|
|
|
TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */
|
|
|
|
TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */
|
|
|
|
|
|
|
|
TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum fan_status_access_mode {
|
|
|
|
TPACPI_FAN_NONE = 0, /* No fan status or control */
|
|
|
|
TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */
|
|
|
|
TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum fan_control_access_mode {
|
|
|
|
TPACPI_FAN_WR_NONE = 0, /* No fan control */
|
|
|
|
TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */
|
|
|
|
TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */
|
|
|
|
TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum fan_control_commands {
|
|
|
|
TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */
|
|
|
|
TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */
|
|
|
|
TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd,
|
|
|
|
* and also watchdog cmd */
|
|
|
|
};
|
|
|
|
|
|
|
|
static int fan_control_allowed;
|
|
|
|
|
2006-11-24 21:47:09 +08:00
|
|
|
static enum fan_status_access_mode fan_status_access_mode;
|
|
|
|
static enum fan_control_access_mode fan_control_access_mode;
|
|
|
|
static enum fan_control_commands fan_control_commands;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
ACPI: ibm-acpi: workaround for EC 0x2f initialization bug
A few ThinkPads fail to initialize EC register 0x2f both in the EC
firmware and ACPI DSDT. If the BIOS and the ACPI DSDT also do not
initialize it, then the initial status of that register does not
correspond to reality.
On all reported buggy machines, EC 0x2f will read 0x07 (fan level 7) upon
cold boot, when the EC is actually in mode 0x80 (auto mode). Since
returning a text string ("unknown") would break a number of userspace
programs, instead we correct the reading for the most probably correct
answer, and return it is in auto mode.
The workaround flags the status and level as unknown on module load/kernel
boot, until we are certain at least one fan control command was issued,
either by us, or by something else.
We don't work around the bug by doing a "fan enable" at module
load/startup (which would initialize the EC register) because it is not
known if these ThinkPad ACPI DSDT might have set the fan to level 7
instead of "auto" (we don't know if they can do this or not) due to a
thermal condition, and we don't want to override that, should they be
capable of it.
We should be setting the workaround flag to "status known" upon resume, as
both reports and a exaustive search on the DSDT tables at acpi.sf.net show
that the DSDTs always enable the fan on resume, thus working around the
bug. But since we don't have suspend/resume handlers in ibm-acpi yet and
the "EC register 0x2f was modified" logic is likely to catch the change
anyway, we don't.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
2006-11-24 21:47:14 +08:00
|
|
|
static u8 fan_control_initial_status;
|
2007-04-24 22:48:17 +08:00
|
|
|
static u8 fan_control_desired_level;
|
2008-11-09 20:54:02 +08:00
|
|
|
static u8 fan_control_resume_level;
|
2008-01-08 23:02:44 +08:00
|
|
|
static int fan_watchdog_maxinterval;
|
|
|
|
|
|
|
|
static struct mutex fan_mutex;
|
ACPI: ibm-acpi: workaround for EC 0x2f initialization bug
A few ThinkPads fail to initialize EC register 0x2f both in the EC
firmware and ACPI DSDT. If the BIOS and the ACPI DSDT also do not
initialize it, then the initial status of that register does not
correspond to reality.
On all reported buggy machines, EC 0x2f will read 0x07 (fan level 7) upon
cold boot, when the EC is actually in mode 0x80 (auto mode). Since
returning a text string ("unknown") would break a number of userspace
programs, instead we correct the reading for the most probably correct
answer, and return it is in auto mode.
The workaround flags the status and level as unknown on module load/kernel
boot, until we are certain at least one fan control command was issued,
either by us, or by something else.
We don't work around the bug by doing a "fan enable" at module
load/startup (which would initialize the EC register) because it is not
known if these ThinkPad ACPI DSDT might have set the fan to level 7
instead of "auto" (we don't know if they can do this or not) due to a
thermal condition, and we don't want to override that, should they be
capable of it.
We should be setting the workaround flag to "status known" upon resume, as
both reports and a exaustive search on the DSDT tables at acpi.sf.net show
that the DSDTs always enable the fan on resume, thus working around the
bug. But since we don't have suspend/resume handlers in ibm-acpi yet and
the "EC register 0x2f was modified" logic is likely to catch the change
anyway, we don't.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
2006-11-24 21:47:14 +08:00
|
|
|
|
2006-12-08 17:43:41 +08:00
|
|
|
static void fan_watchdog_fire(struct work_struct *ignored);
|
|
|
|
static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire);
|
2006-11-24 21:47:14 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */
|
|
|
|
TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */
|
2007-03-24 04:33:57 +08:00
|
|
|
"\\FSPD", /* 600e/x, 770e, 770x */
|
|
|
|
); /* all others */
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */
|
2007-03-24 04:33:57 +08:00
|
|
|
"JFNS", /* 770x-JL */
|
|
|
|
); /* all others */
|
|
|
|
|
2009-01-11 13:01:08 +08:00
|
|
|
/*
|
|
|
|
* Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the
|
|
|
|
* HFSP register at boot, so it contains 0x07 but the Thinkpad could
|
|
|
|
* be in auto mode (0x80).
|
|
|
|
*
|
|
|
|
* This is corrected by any write to HFSP either by the driver, or
|
|
|
|
* by the firmware.
|
|
|
|
*
|
|
|
|
* We assume 0x07 really means auto mode while this quirk is active,
|
|
|
|
* as this is far more likely than the ThinkPad being in level 7,
|
|
|
|
* which is only used by the firmware during thermal emergencies.
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void fan_quirk1_detect(void)
|
|
|
|
{
|
|
|
|
/* In some ThinkPads, neither the EC nor the ACPI
|
|
|
|
* DSDT initialize the HFSP register, and it ends up
|
|
|
|
* being initially set to 0x07 when it *could* be
|
|
|
|
* either 0x07 or 0x80.
|
|
|
|
*
|
|
|
|
* Enable for TP-1Y (T43), TP-78 (R51e),
|
|
|
|
* TP-76 (R52), TP-70 (T43, R52), which are known
|
|
|
|
* to be buggy. */
|
|
|
|
if (fan_control_initial_status == 0x07) {
|
|
|
|
switch (thinkpad_id.ec_model) {
|
|
|
|
case 0x5931: /* TP-1Y */
|
|
|
|
case 0x3837: /* TP-78 */
|
|
|
|
case 0x3637: /* TP-76 */
|
|
|
|
case 0x3037: /* TP-70 */
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"fan_init: initial fan status is unknown, "
|
|
|
|
"assuming it is in auto mode\n");
|
|
|
|
tp_features.fan_ctrl_status_undef = 1;
|
|
|
|
;;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void fan_quirk1_handle(u8 *fan_status)
|
|
|
|
{
|
|
|
|
if (unlikely(tp_features.fan_ctrl_status_undef)) {
|
|
|
|
if (*fan_status != fan_control_initial_status) {
|
|
|
|
/* something changed the HFSP regisnter since
|
|
|
|
* driver init time, so it is not undefined
|
|
|
|
* anymore */
|
|
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
|
|
} else {
|
|
|
|
/* Return most likely status. In fact, it
|
|
|
|
* might be the only possible status */
|
|
|
|
*fan_status = TP_EC_FAN_AUTO;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-04-24 22:48:17 +08:00
|
|
|
/*
|
2008-01-08 23:02:45 +08:00
|
|
|
* Call with fan_mutex held
|
2007-04-24 22:48:17 +08:00
|
|
|
*/
|
2008-01-08 23:02:45 +08:00
|
|
|
static void fan_update_desired_level(u8 status)
|
2007-04-24 22:48:17 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
if ((status &
|
|
|
|
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
|
|
|
|
if (status > 7)
|
|
|
|
fan_control_desired_level = 7;
|
|
|
|
else
|
|
|
|
fan_control_desired_level = status;
|
|
|
|
}
|
|
|
|
}
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int fan_get_status(u8 *status)
|
|
|
|
{
|
|
|
|
u8 s;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* TODO:
|
|
|
|
* Add TPACPI_FAN_RD_ACPI_FANS ? */
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
switch (fan_status_access_mode) {
|
|
|
|
case TPACPI_FAN_RD_ACPI_GFAN:
|
|
|
|
/* 570, 600e/x, 770e, 770x */
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (unlikely(!acpi_evalf(gfan_handle, &s, NULL, "d")))
|
|
|
|
return -EIO;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (likely(status))
|
|
|
|
*status = s & 0x07;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
case TPACPI_FAN_RD_TPEC:
|
|
|
|
/* all except 570, 600e/x, 770e, 770x */
|
|
|
|
if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
|
|
|
|
return -EIO;
|
|
|
|
|
2009-01-11 13:01:08 +08:00
|
|
|
if (likely(status)) {
|
2008-01-08 23:02:45 +08:00
|
|
|
*status = s;
|
2009-01-11 13:01:08 +08:00
|
|
|
fan_quirk1_handle(status);
|
|
|
|
}
|
2007-04-24 22:48:17 +08:00
|
|
|
|
|
|
|
break;
|
2008-01-08 23:02:45 +08:00
|
|
|
|
2007-04-24 22:48:17 +08:00
|
|
|
default:
|
2008-01-08 23:02:45 +08:00
|
|
|
return -ENXIO;
|
2007-04-24 22:48:17 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
return 0;
|
|
|
|
}
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int fan_get_status_safe(u8 *status)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
u8 s;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
2008-01-08 23:02:45 +08:00
|
|
|
return -ERESTARTSYS;
|
|
|
|
rc = fan_get_status(&s);
|
|
|
|
if (!rc)
|
|
|
|
fan_update_desired_level(s);
|
|
|
|
mutex_unlock(&fan_mutex);
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (status)
|
|
|
|
*status = s;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int fan_get_speed(unsigned int *speed)
|
2007-04-24 22:48:17 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
u8 hi, lo;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
switch (fan_status_access_mode) {
|
|
|
|
case TPACPI_FAN_RD_TPEC:
|
|
|
|
/* all except 570, 600e/x, 770e, 770x */
|
|
|
|
if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) ||
|
|
|
|
!acpi_ec_read(fan_rpm_offset + 1, &hi)))
|
|
|
|
return -EIO;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (likely(speed))
|
|
|
|
*speed = (hi << 8) | lo;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
break;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
default:
|
|
|
|
return -ENXIO;
|
|
|
|
}
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
return 0;
|
2007-04-24 22:48:17 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int fan_set_level(int level)
|
2007-04-24 22:48:17 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
if (!fan_control_allowed)
|
|
|
|
return -EPERM;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
switch (fan_control_access_mode) {
|
|
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
|
|
|
if (level >= 0 && level <= 7) {
|
|
|
|
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level))
|
|
|
|
return -EIO;
|
|
|
|
} else
|
|
|
|
return -EINVAL;
|
|
|
|
break;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
|
|
case TPACPI_FAN_WR_TPEC:
|
2008-11-09 20:54:02 +08:00
|
|
|
if (!(level & TP_EC_FAN_AUTO) &&
|
|
|
|
!(level & TP_EC_FAN_FULLSPEED) &&
|
2008-01-08 23:02:45 +08:00
|
|
|
((level < 0) || (level > 7)))
|
|
|
|
return -EINVAL;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* safety net should the EC not support AUTO
|
|
|
|
* or FULLSPEED mode bits and just ignore them */
|
|
|
|
if (level & TP_EC_FAN_FULLSPEED)
|
|
|
|
level |= 7; /* safety min speed 7 */
|
2008-02-05 07:24:56 +08:00
|
|
|
else if (level & TP_EC_FAN_AUTO)
|
2008-01-08 23:02:45 +08:00
|
|
|
level |= 4; /* safety min speed 4 */
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (!acpi_ec_write(fan_status_offset, level))
|
|
|
|
return -EIO;
|
|
|
|
else
|
|
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
|
|
break;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
default:
|
|
|
|
return -ENXIO;
|
|
|
|
}
|
2009-04-04 12:25:52 +08:00
|
|
|
|
|
|
|
vdbg_printk(TPACPI_DBG_FAN,
|
|
|
|
"fan control: set fan control register to 0x%02x\n", level);
|
2008-01-08 23:02:45 +08:00
|
|
|
return 0;
|
2007-04-24 22:48:17 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int fan_set_level_safe(int level)
|
2007-04-24 22:48:17 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
int rc;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (!fan_control_allowed)
|
|
|
|
return -EPERM;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
2008-01-08 23:02:45 +08:00
|
|
|
return -ERESTARTSYS;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (level == TPACPI_FAN_LAST_LEVEL)
|
|
|
|
level = fan_control_desired_level;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
rc = fan_set_level(level);
|
|
|
|
if (!rc)
|
|
|
|
fan_update_desired_level(level);
|
|
|
|
|
|
|
|
mutex_unlock(&fan_mutex);
|
|
|
|
return rc;
|
2007-04-24 22:48:17 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int fan_set_enable(void)
|
2007-04-24 22:48:17 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
u8 s;
|
|
|
|
int rc;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2007-04-28 09:00:09 +08:00
|
|
|
if (!fan_control_allowed)
|
|
|
|
return -EPERM;
|
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
2008-01-08 23:02:45 +08:00
|
|
|
return -ERESTARTSYS;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
switch (fan_control_access_mode) {
|
|
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
|
|
case TPACPI_FAN_WR_TPEC:
|
|
|
|
rc = fan_get_status(&s);
|
|
|
|
if (rc < 0)
|
|
|
|
break;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* Don't go out of emergency fan mode */
|
|
|
|
if (s != 7) {
|
|
|
|
s &= 0x07;
|
|
|
|
s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */
|
|
|
|
}
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (!acpi_ec_write(fan_status_offset, s))
|
|
|
|
rc = -EIO;
|
|
|
|
else {
|
|
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
|
|
rc = 0;
|
|
|
|
}
|
|
|
|
break;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
|
|
|
rc = fan_get_status(&s);
|
|
|
|
if (rc < 0)
|
|
|
|
break;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
s &= 0x07;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* Set fan to at least level 4 */
|
|
|
|
s |= 4;
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s))
|
2008-01-08 23:02:49 +08:00
|
|
|
rc = -EIO;
|
2008-01-08 23:02:45 +08:00
|
|
|
else
|
|
|
|
rc = 0;
|
|
|
|
break;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
default:
|
|
|
|
rc = -ENXIO;
|
|
|
|
}
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
mutex_unlock(&fan_mutex);
|
2009-04-04 12:25:52 +08:00
|
|
|
|
|
|
|
if (!rc)
|
|
|
|
vdbg_printk(TPACPI_DBG_FAN,
|
|
|
|
"fan control: set fan control register to 0x%02x\n",
|
|
|
|
s);
|
2008-01-08 23:02:45 +08:00
|
|
|
return rc;
|
2006-11-24 21:47:09 +08:00
|
|
|
}
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int fan_set_disable(void)
|
2005-08-17 12:00:00 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
int rc;
|
2006-11-24 21:47:10 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (!fan_control_allowed)
|
|
|
|
return -EPERM;
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
2008-01-08 23:02:45 +08:00
|
|
|
return -ERESTARTSYS;
|
2006-11-24 21:47:10 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
rc = 0;
|
|
|
|
switch (fan_control_access_mode) {
|
|
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
|
|
case TPACPI_FAN_WR_TPEC:
|
|
|
|
if (!acpi_ec_write(fan_status_offset, 0x00))
|
|
|
|
rc = -EIO;
|
|
|
|
else {
|
|
|
|
fan_control_desired_level = 0;
|
|
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
|
|
}
|
2006-11-24 21:47:10 +08:00
|
|
|
break;
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
|
|
|
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00))
|
|
|
|
rc = -EIO;
|
|
|
|
else
|
|
|
|
fan_control_desired_level = 0;
|
2006-11-24 21:47:10 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2008-01-08 23:02:45 +08:00
|
|
|
rc = -ENXIO;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2009-04-04 12:25:52 +08:00
|
|
|
if (!rc)
|
|
|
|
vdbg_printk(TPACPI_DBG_FAN,
|
|
|
|
"fan control: set fan control register to 0\n");
|
2007-04-24 22:48:17 +08:00
|
|
|
|
|
|
|
mutex_unlock(&fan_mutex);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int fan_set_speed(int speed)
|
2006-11-24 21:47:10 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
int rc;
|
2006-11-24 21:47:10 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (!fan_control_allowed)
|
|
|
|
return -EPERM;
|
2006-11-24 21:47:10 +08:00
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
2008-01-08 23:02:45 +08:00
|
|
|
return -ERESTARTSYS;
|
2006-11-24 21:47:10 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
rc = 0;
|
|
|
|
switch (fan_control_access_mode) {
|
|
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
|
|
if (speed >= 0 && speed <= 65535) {
|
|
|
|
if (!acpi_evalf(fans_handle, NULL, NULL, "vddd",
|
|
|
|
speed, speed, speed))
|
|
|
|
rc = -EIO;
|
|
|
|
} else
|
|
|
|
rc = -EINVAL;
|
2006-11-24 21:47:10 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2008-01-08 23:02:45 +08:00
|
|
|
rc = -ENXIO;
|
2006-11-24 21:47:10 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
mutex_unlock(&fan_mutex);
|
|
|
|
return rc;
|
2006-11-24 21:47:14 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void fan_watchdog_reset(void)
|
|
|
|
{
|
2007-07-19 10:45:27 +08:00
|
|
|
static int fan_watchdog_active;
|
2006-11-24 21:47:14 +08:00
|
|
|
|
2007-04-28 09:00:10 +08:00
|
|
|
if (fan_control_access_mode == TPACPI_FAN_WR_NONE)
|
|
|
|
return;
|
|
|
|
|
2006-11-24 21:47:14 +08:00
|
|
|
if (fan_watchdog_active)
|
|
|
|
cancel_delayed_work(&fan_watchdog_task);
|
|
|
|
|
2007-09-23 22:39:02 +08:00
|
|
|
if (fan_watchdog_maxinterval > 0 &&
|
|
|
|
tpacpi_lifecycle != TPACPI_LIFE_EXITING) {
|
2006-11-24 21:47:14 +08:00
|
|
|
fan_watchdog_active = 1;
|
2008-04-26 12:02:28 +08:00
|
|
|
if (!queue_delayed_work(tpacpi_wq, &fan_watchdog_task,
|
2006-11-24 21:47:14 +08:00
|
|
|
msecs_to_jiffies(fan_watchdog_maxinterval
|
|
|
|
* 1000))) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
2008-04-26 12:02:28 +08:00
|
|
|
"failed to queue the fan watchdog, "
|
2006-11-24 21:47:14 +08:00
|
|
|
"watchdog will not trigger\n");
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
fan_watchdog_active = 0;
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static void fan_watchdog_fire(struct work_struct *ignored)
|
2005-08-17 12:00:00 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
int rc;
|
2006-11-24 21:47:11 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
|
|
|
|
return;
|
2006-11-24 21:47:13 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_NOTICE "fan watchdog: enabling fan\n");
|
2008-01-08 23:02:45 +08:00
|
|
|
rc = fan_set_enable();
|
|
|
|
if (rc < 0) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "fan watchdog: error %d while enabling fan, "
|
2008-01-08 23:02:45 +08:00
|
|
|
"will try again later...\n", -rc);
|
|
|
|
/* reschedule for later */
|
|
|
|
fan_watchdog_reset();
|
|
|
|
}
|
|
|
|
}
|
2007-04-24 22:48:18 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/*
|
|
|
|
* SYSFS fan layout: hwmon compatible (device)
|
|
|
|
*
|
|
|
|
* pwm*_enable:
|
|
|
|
* 0: "disengaged" mode
|
|
|
|
* 1: manual mode
|
|
|
|
* 2: native EC "auto" mode (recommended, hardware default)
|
|
|
|
*
|
|
|
|
* pwm*: set speed in manual mode, ignored otherwise.
|
|
|
|
* 0 is level 0; 255 is level 7. Intermediate points done with linear
|
|
|
|
* interpolation.
|
|
|
|
*
|
|
|
|
* fan*_input: tachometer reading, RPM
|
|
|
|
*
|
|
|
|
*
|
|
|
|
* SYSFS fan layout: extensions
|
|
|
|
*
|
|
|
|
* fan_watchdog (driver):
|
|
|
|
* fan watchdog interval in seconds, 0 disables (default), max 120
|
|
|
|
*/
|
|
|
|
|
|
|
|
/* sysfs fan pwm1_enable ----------------------------------------------- */
|
|
|
|
static ssize_t fan_pwm1_enable_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
int res, mode;
|
|
|
|
u8 status;
|
|
|
|
|
|
|
|
res = fan_get_status_safe(&status);
|
|
|
|
if (res)
|
|
|
|
return res;
|
|
|
|
|
|
|
|
if (status & TP_EC_FAN_FULLSPEED) {
|
|
|
|
mode = 0;
|
|
|
|
} else if (status & TP_EC_FAN_AUTO) {
|
|
|
|
mode = 2;
|
|
|
|
} else
|
|
|
|
mode = 1;
|
|
|
|
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", mode);
|
|
|
|
}
|
2006-11-24 21:47:13 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static ssize_t fan_pwm1_enable_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
unsigned long t;
|
|
|
|
int res, level;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 2, &t))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-04-04 12:25:52 +08:00
|
|
|
tpacpi_disclose_usertask("hwmon pwm1_enable",
|
|
|
|
"set fan mode to %lu\n", t);
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
switch (t) {
|
|
|
|
case 0:
|
|
|
|
level = TP_EC_FAN_FULLSPEED;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
level = TPACPI_FAN_LAST_LEVEL;
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
level = TP_EC_FAN_AUTO;
|
|
|
|
break;
|
|
|
|
case 3:
|
|
|
|
/* reserved for software-controlled auto mode */
|
|
|
|
return -ENOSYS;
|
2006-11-24 21:47:11 +08:00
|
|
|
default:
|
2008-01-08 23:02:45 +08:00
|
|
|
return -EINVAL;
|
2006-11-24 21:47:11 +08:00
|
|
|
}
|
2008-01-08 23:02:45 +08:00
|
|
|
|
|
|
|
res = fan_set_level_safe(level);
|
|
|
|
if (res == -ENXIO)
|
|
|
|
return -EINVAL;
|
|
|
|
else if (res < 0)
|
|
|
|
return res;
|
|
|
|
|
|
|
|
fan_watchdog_reset();
|
|
|
|
|
|
|
|
return count;
|
2006-11-24 21:47:11 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static struct device_attribute dev_attr_fan_pwm1_enable =
|
|
|
|
__ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
|
|
|
|
fan_pwm1_enable_show, fan_pwm1_enable_store);
|
|
|
|
|
|
|
|
/* sysfs fan pwm1 ------------------------------------------------------ */
|
|
|
|
static ssize_t fan_pwm1_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
2007-04-24 22:48:17 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
int res;
|
|
|
|
u8 status;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
res = fan_get_status_safe(&status);
|
|
|
|
if (res)
|
|
|
|
return res;
|
2007-04-28 09:00:09 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if ((status &
|
|
|
|
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0)
|
|
|
|
status = fan_control_desired_level;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (status > 7)
|
|
|
|
status = 7;
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7);
|
2007-04-24 22:48:17 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static ssize_t fan_pwm1_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
2006-11-24 21:47:11 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
unsigned long s;
|
2006-11-24 21:47:12 +08:00
|
|
|
int rc;
|
2008-01-08 23:02:45 +08:00
|
|
|
u8 status, newlevel;
|
2006-11-24 21:47:12 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (parse_strtoul(buf, 255, &s))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2009-04-04 12:25:52 +08:00
|
|
|
tpacpi_disclose_usertask("hwmon pwm1",
|
|
|
|
"set fan speed to %lu\n", s);
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* scale down from 0-255 to 0-7 */
|
|
|
|
newlevel = (s >> 5) & 0x07;
|
2007-04-28 09:00:09 +08:00
|
|
|
|
2009-01-11 13:01:04 +08:00
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
2007-10-31 03:46:24 +08:00
|
|
|
return -ERESTARTSYS;
|
2007-04-24 22:48:15 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
rc = fan_get_status(&status);
|
|
|
|
if (!rc && (status &
|
|
|
|
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
|
|
|
|
rc = fan_set_level(newlevel);
|
|
|
|
if (rc == -ENXIO)
|
|
|
|
rc = -EINVAL;
|
|
|
|
else if (!rc) {
|
|
|
|
fan_update_desired_level(newlevel);
|
|
|
|
fan_watchdog_reset();
|
2007-04-24 22:48:18 +08:00
|
|
|
}
|
2008-01-08 23:02:45 +08:00
|
|
|
}
|
2006-11-24 21:47:12 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
mutex_unlock(&fan_mutex);
|
|
|
|
return (rc)? rc : count;
|
|
|
|
}
|
2006-11-24 21:47:12 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static struct device_attribute dev_attr_fan_pwm1 =
|
|
|
|
__ATTR(pwm1, S_IWUSR | S_IRUGO,
|
|
|
|
fan_pwm1_show, fan_pwm1_store);
|
2006-11-24 21:47:12 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* sysfs fan fan1_input ------------------------------------------------ */
|
|
|
|
static ssize_t fan_fan1_input_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
int res;
|
|
|
|
unsigned int speed;
|
2006-11-24 21:47:12 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
res = fan_get_speed(&speed);
|
|
|
|
if (res < 0)
|
|
|
|
return res;
|
2006-11-24 21:47:12 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "%u\n", speed);
|
|
|
|
}
|
2006-11-24 21:47:11 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static struct device_attribute dev_attr_fan_fan1_input =
|
|
|
|
__ATTR(fan1_input, S_IRUGO,
|
|
|
|
fan_fan1_input_show, NULL);
|
2007-04-24 22:48:15 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */
|
|
|
|
static ssize_t fan_fan_watchdog_show(struct device_driver *drv,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval);
|
2006-11-24 21:47:11 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static ssize_t fan_fan_watchdog_store(struct device_driver *drv,
|
|
|
|
const char *buf, size_t count)
|
2006-11-24 21:47:11 +08:00
|
|
|
{
|
2008-01-08 23:02:45 +08:00
|
|
|
unsigned long t;
|
|
|
|
|
|
|
|
if (parse_strtoul(buf, 120, &t))
|
|
|
|
return -EINVAL;
|
2007-04-24 22:48:15 +08:00
|
|
|
|
2007-04-28 09:00:09 +08:00
|
|
|
if (!fan_control_allowed)
|
|
|
|
return -EPERM;
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
fan_watchdog_maxinterval = t;
|
|
|
|
fan_watchdog_reset();
|
2007-04-24 22:48:15 +08:00
|
|
|
|
2009-04-04 12:25:52 +08:00
|
|
|
tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t);
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static DRIVER_ATTR(fan_watchdog, S_IWUSR | S_IRUGO,
|
|
|
|
fan_fan_watchdog_show, fan_fan_watchdog_store);
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
static struct attribute *fan_attributes[] = {
|
|
|
|
&dev_attr_fan_pwm1_enable.attr, &dev_attr_fan_pwm1.attr,
|
|
|
|
&dev_attr_fan_fan1_input.attr,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group fan_attr_group = {
|
|
|
|
.attrs = fan_attributes,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init fan_init(struct ibm_init_struct *iibm)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
|
2009-04-04 12:25:52 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
|
|
|
|
"initializing fan subdriver\n");
|
2008-01-08 23:02:45 +08:00
|
|
|
|
|
|
|
mutex_init(&fan_mutex);
|
|
|
|
fan_status_access_mode = TPACPI_FAN_NONE;
|
|
|
|
fan_control_access_mode = TPACPI_FAN_WR_NONE;
|
|
|
|
fan_control_commands = 0;
|
|
|
|
fan_watchdog_maxinterval = 0;
|
|
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
|
|
fan_control_desired_level = 7;
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(fans);
|
|
|
|
TPACPI_ACPIHANDLE_INIT(gfan);
|
|
|
|
TPACPI_ACPIHANDLE_INIT(sfan);
|
2008-01-08 23:02:45 +08:00
|
|
|
|
|
|
|
if (gfan_handle) {
|
|
|
|
/* 570, 600e/x, 770e, 770x */
|
|
|
|
fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN;
|
|
|
|
} else {
|
|
|
|
/* all other ThinkPads: note that even old-style
|
|
|
|
* ThinkPad ECs supports the fan control register */
|
|
|
|
if (likely(acpi_ec_read(fan_status_offset,
|
|
|
|
&fan_control_initial_status))) {
|
|
|
|
fan_status_access_mode = TPACPI_FAN_RD_TPEC;
|
2009-01-11 13:01:08 +08:00
|
|
|
fan_quirk1_detect();
|
2008-01-08 23:02:45 +08:00
|
|
|
} else {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR
|
2008-01-08 23:02:45 +08:00
|
|
|
"ThinkPad ACPI EC access misbehaving, "
|
|
|
|
"fan status and control unavailable\n");
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (sfan_handle) {
|
|
|
|
/* 570, 770x-JL */
|
|
|
|
fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN;
|
|
|
|
fan_control_commands |=
|
|
|
|
TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE;
|
|
|
|
} else {
|
|
|
|
if (!gfan_handle) {
|
|
|
|
/* gfan without sfan means no fan control */
|
|
|
|
/* all other models implement TP EC 0x2f control */
|
|
|
|
|
|
|
|
if (fans_handle) {
|
|
|
|
/* X31, X40, X41 */
|
|
|
|
fan_control_access_mode =
|
|
|
|
TPACPI_FAN_WR_ACPI_FANS;
|
|
|
|
fan_control_commands |=
|
|
|
|
TPACPI_FAN_CMD_SPEED |
|
|
|
|
TPACPI_FAN_CMD_LEVEL |
|
|
|
|
TPACPI_FAN_CMD_ENABLE;
|
|
|
|
} else {
|
|
|
|
fan_control_access_mode = TPACPI_FAN_WR_TPEC;
|
|
|
|
fan_control_commands |=
|
|
|
|
TPACPI_FAN_CMD_LEVEL |
|
|
|
|
TPACPI_FAN_CMD_ENABLE;
|
|
|
|
}
|
2007-04-24 22:48:17 +08:00
|
|
|
}
|
2008-01-08 23:02:45 +08:00
|
|
|
}
|
2006-11-24 21:47:11 +08:00
|
|
|
|
2009-04-04 12:25:52 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
|
|
|
|
"fan is %s, modes %d, %d\n",
|
2008-01-08 23:02:45 +08:00
|
|
|
str_supported(fan_status_access_mode != TPACPI_FAN_NONE ||
|
|
|
|
fan_control_access_mode != TPACPI_FAN_WR_NONE),
|
|
|
|
fan_status_access_mode, fan_control_access_mode);
|
2006-11-24 21:47:12 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* fan control master switch */
|
|
|
|
if (!fan_control_allowed) {
|
|
|
|
fan_control_access_mode = TPACPI_FAN_WR_NONE;
|
|
|
|
fan_control_commands = 0;
|
2009-04-04 12:25:52 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
|
2008-01-08 23:02:45 +08:00
|
|
|
"fan control features disabled by parameter\n");
|
2006-11-24 21:47:11 +08:00
|
|
|
}
|
2007-04-24 22:48:15 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* update fan_control_desired_level */
|
|
|
|
if (fan_status_access_mode != TPACPI_FAN_NONE)
|
|
|
|
fan_get_status_safe(NULL);
|
2007-04-24 22:48:17 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
if (fan_status_access_mode != TPACPI_FAN_NONE ||
|
|
|
|
fan_control_access_mode != TPACPI_FAN_WR_NONE) {
|
|
|
|
rc = sysfs_create_group(&tpacpi_sensors_pdev->dev.kobj,
|
|
|
|
&fan_attr_group);
|
|
|
|
if (rc < 0)
|
|
|
|
return rc;
|
2008-06-04 10:36:10 +08:00
|
|
|
|
|
|
|
rc = driver_create_file(&tpacpi_hwmon_pdriver.driver,
|
|
|
|
&driver_attr_fan_watchdog);
|
|
|
|
if (rc < 0) {
|
|
|
|
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj,
|
|
|
|
&fan_attr_group);
|
|
|
|
return rc;
|
|
|
|
}
|
2008-01-08 23:02:45 +08:00
|
|
|
return 0;
|
|
|
|
} else
|
|
|
|
return 1;
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static void fan_exit(void)
|
2007-03-24 04:33:57 +08:00
|
|
|
{
|
2009-04-04 12:25:52 +08:00
|
|
|
vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN,
|
2008-01-08 23:02:49 +08:00
|
|
|
"cancelling any pending fan watchdog tasks\n");
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
/* FIXME: can we really do this unconditionally? */
|
|
|
|
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj, &fan_attr_group);
|
2008-01-08 23:02:49 +08:00
|
|
|
driver_remove_file(&tpacpi_hwmon_pdriver.driver,
|
|
|
|
&driver_attr_fan_watchdog);
|
2007-04-24 22:48:15 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
cancel_delayed_work(&fan_watchdog_task);
|
2008-04-26 12:02:28 +08:00
|
|
|
flush_workqueue(tpacpi_wq);
|
2007-03-24 04:33:57 +08:00
|
|
|
}
|
|
|
|
|
2008-10-19 01:23:52 +08:00
|
|
|
static void fan_suspend(pm_message_t state)
|
|
|
|
{
|
2008-11-09 20:54:02 +08:00
|
|
|
int rc;
|
|
|
|
|
2008-10-19 01:23:52 +08:00
|
|
|
if (!fan_control_allowed)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* Store fan status in cache */
|
2008-11-09 20:54:02 +08:00
|
|
|
fan_control_resume_level = 0;
|
|
|
|
rc = fan_get_status_safe(&fan_control_resume_level);
|
|
|
|
if (rc < 0)
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"failed to read fan level for later "
|
|
|
|
"restore during resume: %d\n", rc);
|
|
|
|
|
|
|
|
/* if it is undefined, don't attempt to restore it.
|
|
|
|
* KEEP THIS LAST */
|
2008-10-19 01:23:52 +08:00
|
|
|
if (tp_features.fan_ctrl_status_undef)
|
2008-11-09 20:54:02 +08:00
|
|
|
fan_control_resume_level = 0;
|
2008-10-19 01:23:52 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void fan_resume(void)
|
|
|
|
{
|
|
|
|
u8 current_level = 7;
|
|
|
|
bool do_set = false;
|
2008-11-09 20:54:02 +08:00
|
|
|
int rc;
|
2008-10-19 01:23:52 +08:00
|
|
|
|
|
|
|
/* DSDT *always* updates status on resume */
|
|
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
|
|
|
|
|
|
if (!fan_control_allowed ||
|
2008-11-09 20:54:02 +08:00
|
|
|
!fan_control_resume_level ||
|
2008-10-19 01:23:52 +08:00
|
|
|
(fan_get_status_safe(¤t_level) < 0))
|
|
|
|
return;
|
|
|
|
|
|
|
|
switch (fan_control_access_mode) {
|
|
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
2008-11-09 20:54:02 +08:00
|
|
|
/* never decrease fan level */
|
|
|
|
do_set = (fan_control_resume_level > current_level);
|
2008-10-19 01:23:52 +08:00
|
|
|
break;
|
|
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
|
|
case TPACPI_FAN_WR_TPEC:
|
2008-11-09 20:54:02 +08:00
|
|
|
/* never decrease fan level, scale is:
|
|
|
|
* TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO
|
|
|
|
*
|
|
|
|
* We expect the firmware to set either 7 or AUTO, but we
|
|
|
|
* handle FULLSPEED out of paranoia.
|
|
|
|
*
|
|
|
|
* So, we can safely only restore FULLSPEED or 7, anything
|
|
|
|
* else could slow the fan. Restoring AUTO is useless, at
|
|
|
|
* best that's exactly what the DSDT already set (it is the
|
|
|
|
* slower it uses).
|
|
|
|
*
|
|
|
|
* Always keep in mind that the DSDT *will* have set the
|
|
|
|
* fans to what the vendor supposes is the best level. We
|
|
|
|
* muck with it only to speed the fan up.
|
|
|
|
*/
|
|
|
|
if (fan_control_resume_level != 7 &&
|
|
|
|
!(fan_control_resume_level & TP_EC_FAN_FULLSPEED))
|
|
|
|
return;
|
|
|
|
else
|
|
|
|
do_set = !(current_level & TP_EC_FAN_FULLSPEED) &&
|
|
|
|
(current_level != fan_control_resume_level);
|
2008-10-19 01:23:52 +08:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
if (do_set) {
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"restoring fan level to 0x%02x\n",
|
2008-11-09 20:54:02 +08:00
|
|
|
fan_control_resume_level);
|
|
|
|
rc = fan_set_level_safe(fan_control_resume_level);
|
|
|
|
if (rc < 0)
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"failed to restore fan level: %d\n", rc);
|
2008-10-19 01:23:52 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
static int fan_read(char *p)
|
|
|
|
{
|
|
|
|
int len = 0;
|
|
|
|
int rc;
|
|
|
|
u8 status;
|
|
|
|
unsigned int speed = 0;
|
|
|
|
|
|
|
|
switch (fan_status_access_mode) {
|
2007-04-21 22:08:28 +08:00
|
|
|
case TPACPI_FAN_RD_ACPI_GFAN:
|
2007-03-24 04:33:57 +08:00
|
|
|
/* 570, 600e/x, 770e, 770x */
|
2008-01-08 23:02:49 +08:00
|
|
|
rc = fan_get_status_safe(&status);
|
|
|
|
if (rc < 0)
|
2007-03-24 04:33:57 +08:00
|
|
|
return rc;
|
|
|
|
|
|
|
|
len += sprintf(p + len, "status:\t\t%s\n"
|
|
|
|
"level:\t\t%d\n",
|
|
|
|
(status != 0) ? "enabled" : "disabled", status);
|
|
|
|
break;
|
|
|
|
|
2007-04-21 22:08:28 +08:00
|
|
|
case TPACPI_FAN_RD_TPEC:
|
2007-03-24 04:33:57 +08:00
|
|
|
/* all except 570, 600e/x, 770e, 770x */
|
2008-01-08 23:02:49 +08:00
|
|
|
rc = fan_get_status_safe(&status);
|
|
|
|
if (rc < 0)
|
2007-03-24 04:33:57 +08:00
|
|
|
return rc;
|
|
|
|
|
|
|
|
len += sprintf(p + len, "status:\t\t%s\n",
|
|
|
|
(status != 0) ? "enabled" : "disabled");
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
rc = fan_get_speed(&speed);
|
|
|
|
if (rc < 0)
|
2007-03-24 04:33:57 +08:00
|
|
|
return rc;
|
|
|
|
|
|
|
|
len += sprintf(p + len, "speed:\t\t%d\n", speed);
|
|
|
|
|
2007-04-21 22:08:28 +08:00
|
|
|
if (status & TP_EC_FAN_FULLSPEED)
|
2007-03-24 04:33:57 +08:00
|
|
|
/* Disengaged mode takes precedence */
|
|
|
|
len += sprintf(p + len, "level:\t\tdisengaged\n");
|
2007-04-21 22:08:28 +08:00
|
|
|
else if (status & TP_EC_FAN_AUTO)
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "level:\t\tauto\n");
|
|
|
|
else
|
|
|
|
len += sprintf(p + len, "level:\t\t%d\n", status);
|
|
|
|
break;
|
|
|
|
|
2007-04-21 22:08:28 +08:00
|
|
|
case TPACPI_FAN_NONE:
|
2007-03-24 04:33:57 +08:00
|
|
|
default:
|
|
|
|
len += sprintf(p + len, "status:\t\tnot supported\n");
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:28 +08:00
|
|
|
if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) {
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "commands:\tlevel <level>");
|
|
|
|
|
|
|
|
switch (fan_control_access_mode) {
|
2007-04-21 22:08:28 +08:00
|
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, " (<level> is 0-7)\n");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
len += sprintf(p + len, " (<level> is 0-7, "
|
2007-04-24 22:48:17 +08:00
|
|
|
"auto, disengaged, full-speed)\n");
|
2007-03-24 04:33:57 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2006-11-24 21:47:11 +08:00
|
|
|
|
2007-04-21 22:08:28 +08:00
|
|
|
if (fan_control_commands & TPACPI_FAN_CMD_ENABLE)
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "commands:\tenable, disable\n"
|
2008-01-08 23:02:49 +08:00
|
|
|
"commands:\twatchdog <timeout> (<timeout> "
|
|
|
|
"is 0 (off), 1-120 (seconds))\n");
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:28 +08:00
|
|
|
if (fan_control_commands & TPACPI_FAN_CMD_SPEED)
|
2007-03-24 04:33:57 +08:00
|
|
|
len += sprintf(p + len, "commands:\tspeed <speed>"
|
|
|
|
" (<speed> is 0-65535)\n");
|
|
|
|
|
|
|
|
return len;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
|
2006-11-24 21:47:11 +08:00
|
|
|
static int fan_write_cmd_level(const char *cmd, int *rc)
|
|
|
|
{
|
|
|
|
int level;
|
|
|
|
|
2006-11-24 21:47:13 +08:00
|
|
|
if (strlencmp(cmd, "level auto") == 0)
|
2007-04-21 22:08:28 +08:00
|
|
|
level = TP_EC_FAN_AUTO;
|
2007-04-24 22:48:17 +08:00
|
|
|
else if ((strlencmp(cmd, "level disengaged") == 0) |
|
2008-01-08 23:02:49 +08:00
|
|
|
(strlencmp(cmd, "level full-speed") == 0))
|
2007-04-21 22:08:28 +08:00
|
|
|
level = TP_EC_FAN_FULLSPEED;
|
2006-11-24 21:47:13 +08:00
|
|
|
else if (sscanf(cmd, "level %d", &level) != 1)
|
2006-11-24 21:47:11 +08:00
|
|
|
return 0;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
*rc = fan_set_level_safe(level);
|
|
|
|
if (*rc == -ENXIO)
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "level command accepted for unsupported "
|
2006-11-24 21:47:11 +08:00
|
|
|
"access mode %d", fan_control_access_mode);
|
2009-04-04 12:25:52 +08:00
|
|
|
else if (!*rc)
|
|
|
|
tpacpi_disclose_usertask("procfs fan",
|
|
|
|
"set level to %d\n", level);
|
2006-11-24 21:47:11 +08:00
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int fan_write_cmd_enable(const char *cmd, int *rc)
|
|
|
|
{
|
|
|
|
if (strlencmp(cmd, "enable") != 0)
|
|
|
|
return 0;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
*rc = fan_set_enable();
|
|
|
|
if (*rc == -ENXIO)
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "enable command accepted for unsupported "
|
2006-11-24 21:47:11 +08:00
|
|
|
"access mode %d", fan_control_access_mode);
|
2009-04-04 12:25:52 +08:00
|
|
|
else if (!*rc)
|
|
|
|
tpacpi_disclose_usertask("procfs fan", "enable\n");
|
2006-11-24 21:47:11 +08:00
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int fan_write_cmd_disable(const char *cmd, int *rc)
|
|
|
|
{
|
|
|
|
if (strlencmp(cmd, "disable") != 0)
|
|
|
|
return 0;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
*rc = fan_set_disable();
|
|
|
|
if (*rc == -ENXIO)
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "disable command accepted for unsupported "
|
2006-11-24 21:47:11 +08:00
|
|
|
"access mode %d", fan_control_access_mode);
|
2009-04-04 12:25:52 +08:00
|
|
|
else if (!*rc)
|
|
|
|
tpacpi_disclose_usertask("procfs fan", "disable\n");
|
2006-11-24 21:47:11 +08:00
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int fan_write_cmd_speed(const char *cmd, int *rc)
|
|
|
|
{
|
|
|
|
int speed;
|
|
|
|
|
2006-11-24 21:47:11 +08:00
|
|
|
/* TODO:
|
|
|
|
* Support speed <low> <medium> <high> ? */
|
|
|
|
|
2006-11-24 21:47:11 +08:00
|
|
|
if (sscanf(cmd, "speed %d", &speed) != 1)
|
|
|
|
return 0;
|
|
|
|
|
2008-01-08 23:02:49 +08:00
|
|
|
*rc = fan_set_speed(speed);
|
|
|
|
if (*rc == -ENXIO)
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "speed command accepted for unsupported "
|
2006-11-24 21:47:11 +08:00
|
|
|
"access mode %d", fan_control_access_mode);
|
2009-04-04 12:25:52 +08:00
|
|
|
else if (!*rc)
|
|
|
|
tpacpi_disclose_usertask("procfs fan",
|
|
|
|
"set speed to %d\n", speed);
|
2006-11-24 21:47:11 +08:00
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2006-11-24 21:47:14 +08:00
|
|
|
static int fan_write_cmd_watchdog(const char *cmd, int *rc)
|
|
|
|
{
|
|
|
|
int interval;
|
|
|
|
|
|
|
|
if (sscanf(cmd, "watchdog %d", &interval) != 1)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (interval < 0 || interval > 120)
|
|
|
|
*rc = -EINVAL;
|
2009-04-04 12:25:52 +08:00
|
|
|
else {
|
2006-11-24 21:47:14 +08:00
|
|
|
fan_watchdog_maxinterval = interval;
|
2009-04-04 12:25:52 +08:00
|
|
|
tpacpi_disclose_usertask("procfs fan",
|
|
|
|
"set watchdog timer to %d\n",
|
|
|
|
interval);
|
|
|
|
}
|
2006-11-24 21:47:14 +08:00
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2006-11-24 21:47:11 +08:00
|
|
|
static int fan_write(char *buf)
|
|
|
|
{
|
|
|
|
char *cmd;
|
|
|
|
int rc = 0;
|
|
|
|
|
|
|
|
while (!rc && (cmd = next_cmd(&buf))) {
|
2007-04-21 22:08:28 +08:00
|
|
|
if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) &&
|
2006-11-24 21:47:11 +08:00
|
|
|
fan_write_cmd_level(cmd, &rc)) &&
|
2007-04-21 22:08:28 +08:00
|
|
|
!((fan_control_commands & TPACPI_FAN_CMD_ENABLE) &&
|
2006-11-24 21:47:11 +08:00
|
|
|
(fan_write_cmd_enable(cmd, &rc) ||
|
2006-11-24 21:47:14 +08:00
|
|
|
fan_write_cmd_disable(cmd, &rc) ||
|
|
|
|
fan_write_cmd_watchdog(cmd, &rc))) &&
|
2007-04-21 22:08:28 +08:00
|
|
|
!((fan_control_commands & TPACPI_FAN_CMD_SPEED) &&
|
2006-11-24 21:47:11 +08:00
|
|
|
fan_write_cmd_speed(cmd, &rc))
|
|
|
|
)
|
|
|
|
rc = -EINVAL;
|
2006-11-24 21:47:14 +08:00
|
|
|
else if (!rc)
|
|
|
|
fan_watchdog_reset();
|
2006-11-24 21:47:11 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_struct fan_driver_data = {
|
|
|
|
.name = "fan",
|
|
|
|
.read = fan_read,
|
|
|
|
.write = fan_write,
|
|
|
|
.exit = fan_exit,
|
2008-10-19 01:23:52 +08:00
|
|
|
.suspend = fan_suspend,
|
|
|
|
.resume = fan_resume,
|
2007-04-21 22:08:33 +08:00
|
|
|
};
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/****************************************************************************
|
|
|
|
****************************************************************************
|
|
|
|
*
|
|
|
|
* Infrastructure
|
|
|
|
*
|
|
|
|
****************************************************************************
|
|
|
|
****************************************************************************/
|
|
|
|
|
2007-09-25 17:38:03 +08:00
|
|
|
/* sysfs name ---------------------------------------------------------- */
|
|
|
|
static ssize_t thinkpad_acpi_pdev_name_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
2008-01-08 23:02:48 +08:00
|
|
|
return snprintf(buf, PAGE_SIZE, "%s\n", TPACPI_NAME);
|
2007-09-25 17:38:03 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct device_attribute dev_attr_thinkpad_acpi_pdev_name =
|
|
|
|
__ATTR(name, S_IRUGO, thinkpad_acpi_pdev_name_show, NULL);
|
|
|
|
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/* /proc support */
|
2007-07-19 10:45:27 +08:00
|
|
|
static struct proc_dir_entry *proc_dir;
|
2006-11-24 21:47:14 +08:00
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*
|
|
|
|
* Module and infrastructure proble, init and exit handling
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static int force_load;
|
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUG
|
2007-04-21 22:08:33 +08:00
|
|
|
static const char * __init str_supported(int is_supported)
|
2007-04-21 22:08:32 +08:00
|
|
|
{
|
2007-04-21 22:08:33 +08:00
|
|
|
static char text_unsupported[] __initdata = "not supported";
|
2007-04-21 22:08:32 +08:00
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
return (is_supported)? &text_unsupported[4] : &text_unsupported[0];
|
2007-04-21 22:08:32 +08:00
|
|
|
}
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_DEBUG */
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static void ibm_exit(struct ibm_struct *ibm)
|
|
|
|
{
|
|
|
|
dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name);
|
|
|
|
|
|
|
|
list_del_init(&ibm->all_drivers);
|
|
|
|
|
|
|
|
if (ibm->flags.acpi_notify_installed) {
|
|
|
|
dbg_printk(TPACPI_DBG_EXIT,
|
|
|
|
"%s: acpi_remove_notify_handler\n", ibm->name);
|
|
|
|
BUG_ON(!ibm->acpi);
|
|
|
|
acpi_remove_notify_handler(*ibm->acpi->handle,
|
|
|
|
ibm->acpi->type,
|
|
|
|
dispatch_acpi_notify);
|
|
|
|
ibm->flags.acpi_notify_installed = 0;
|
|
|
|
ibm->flags.acpi_notify_installed = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ibm->flags.proc_created) {
|
|
|
|
dbg_printk(TPACPI_DBG_EXIT,
|
|
|
|
"%s: remove_proc_entry\n", ibm->name);
|
|
|
|
remove_proc_entry(ibm->name, proc_dir);
|
|
|
|
ibm->flags.proc_created = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ibm->flags.acpi_driver_registered) {
|
|
|
|
dbg_printk(TPACPI_DBG_EXIT,
|
|
|
|
"%s: acpi_bus_unregister_driver\n", ibm->name);
|
|
|
|
BUG_ON(!ibm->acpi);
|
|
|
|
acpi_bus_unregister_driver(ibm->acpi->driver);
|
|
|
|
kfree(ibm->acpi->driver);
|
|
|
|
ibm->acpi->driver = NULL;
|
|
|
|
ibm->flags.acpi_driver_registered = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ibm->flags.init_called && ibm->exit) {
|
|
|
|
ibm->exit();
|
|
|
|
ibm->flags.init_called = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name);
|
|
|
|
}
|
2008-01-08 23:02:44 +08:00
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static int __init ibm_init(struct ibm_init_struct *iibm)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int ret;
|
2007-04-21 22:08:33 +08:00
|
|
|
struct ibm_struct *ibm = iibm->data;
|
2005-04-17 06:20:36 +08:00
|
|
|
struct proc_dir_entry *entry;
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
BUG_ON(ibm == NULL);
|
|
|
|
|
|
|
|
INIT_LIST_HEAD(&ibm->all_drivers);
|
|
|
|
|
2007-04-21 22:08:35 +08:00
|
|
|
if (ibm->flags.experimental && !experimental)
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"probing for %s\n", ibm->name);
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
if (iibm->init) {
|
|
|
|
ret = iibm->init(iibm);
|
2007-04-21 22:08:31 +08:00
|
|
|
if (ret > 0)
|
|
|
|
return 0; /* probe failed */
|
|
|
|
if (ret)
|
2005-04-17 06:20:36 +08:00
|
|
|
return ret;
|
2007-04-21 22:08:33 +08:00
|
|
|
|
2007-04-21 22:08:35 +08:00
|
|
|
ibm->flags.init_called = 1;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
if (ibm->acpi) {
|
|
|
|
if (ibm->acpi->hid) {
|
|
|
|
ret = register_tpacpi_subdriver(ibm);
|
|
|
|
if (ret)
|
|
|
|
goto err_out;
|
|
|
|
}
|
2007-04-21 22:08:31 +08:00
|
|
|
|
2007-04-21 22:08:37 +08:00
|
|
|
if (ibm->acpi->notify) {
|
|
|
|
ret = setup_acpi_notify(ibm);
|
|
|
|
if (ret == -ENODEV) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_NOTICE "disabling subdriver %s\n",
|
2007-04-21 22:08:37 +08:00
|
|
|
ibm->name);
|
|
|
|
ret = 0;
|
|
|
|
goto err_out;
|
|
|
|
}
|
|
|
|
if (ret < 0)
|
|
|
|
goto err_out;
|
2007-04-21 22:08:31 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:32 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"%s installed\n", ibm->name);
|
|
|
|
|
2005-08-17 12:00:00 +08:00
|
|
|
if (ibm->read) {
|
|
|
|
entry = create_proc_entry(ibm->name,
|
|
|
|
S_IFREG | S_IRUGO | S_IWUSR,
|
|
|
|
proc_dir);
|
|
|
|
if (!entry) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "unable to create proc entry %s\n",
|
2005-08-17 12:00:00 +08:00
|
|
|
ibm->name);
|
2007-04-21 22:08:31 +08:00
|
|
|
ret = -ENODEV;
|
|
|
|
goto err_out;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
|
|
|
entry->data = ibm;
|
2007-04-21 22:08:37 +08:00
|
|
|
entry->read_proc = &dispatch_procfs_read;
|
2005-08-17 12:00:00 +08:00
|
|
|
if (ibm->write)
|
2007-04-21 22:08:37 +08:00
|
|
|
entry->write_proc = &dispatch_procfs_write;
|
2007-04-21 22:08:35 +08:00
|
|
|
ibm->flags.proc_created = 1;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers);
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
2007-04-21 22:08:31 +08:00
|
|
|
|
|
|
|
err_out:
|
2007-04-21 22:08:32 +08:00
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
|
|
"%s: at error exit path with result %d\n",
|
|
|
|
ibm->name, ret);
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
ibm_exit(ibm);
|
|
|
|
return (ret < 0)? ret : 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/* Probing */
|
|
|
|
|
thinkpad-acpi: store fw version with strict checking
Extend the thinkpad model and firmware identification data with the
release serial number for the BIOS and firmware (when available), as
that is easier to parse and compare than the version strings.
We're going to greatly extend the use of the ThinkPad DMI data through
quirk lists, so it is best to be quite strict and make sure what we
get from DMI is exactly what we expect, otherwise quirk matching may
result in quite insane things.
IBM (and Lenovo, at least for the ThinkPad line) uses this schema for
firmware versioning and model:
Firmware model: Two digits, [0-9A-Z]
Firmware version: AABBCCDD, where
AA = firmware model, see above
BB = "ET" for BIOS, "HT" for EC
CC = release version, two digits, [0-9A-Z],
"00" < "09" < "0A" < "10" < "A0" < "ZZ"
DD = "WW"
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-31 00:25:05 +08:00
|
|
|
static bool __pure __init tpacpi_is_fw_digit(const char c)
|
|
|
|
{
|
|
|
|
return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z');
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Most models: xxyTkkWW (#.##c); Ancient 570/600 and -SL lacks (#.##c) */
|
|
|
|
static bool __pure __init tpacpi_is_valid_fw_id(const char* const s,
|
|
|
|
const char t)
|
|
|
|
{
|
|
|
|
return s && strlen(s) >= 8 &&
|
|
|
|
tpacpi_is_fw_digit(s[0]) &&
|
|
|
|
tpacpi_is_fw_digit(s[1]) &&
|
|
|
|
s[2] == t && s[3] == 'T' &&
|
|
|
|
tpacpi_is_fw_digit(s[4]) &&
|
|
|
|
tpacpi_is_fw_digit(s[5]) &&
|
|
|
|
s[6] == 'W' && s[7] == 'W';
|
|
|
|
}
|
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
/* returns 0 - probe ok, or < 0 - probe error.
|
|
|
|
* Probe ok doesn't mean thinkpad found.
|
|
|
|
* On error, kfree() cleanup on tp->* is not performed, caller must do it */
|
|
|
|
static int __must_check __init get_thinkpad_model_data(
|
|
|
|
struct thinkpad_id_data *tp)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
2007-10-04 03:15:40 +08:00
|
|
|
const struct dmi_device *dev = NULL;
|
2007-03-24 04:33:57 +08:00
|
|
|
char ec_fw_string[18];
|
2008-07-21 20:15:51 +08:00
|
|
|
char const *s;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-07-19 10:45:42 +08:00
|
|
|
if (!tp)
|
2008-07-21 20:15:51 +08:00
|
|
|
return -EINVAL;
|
2007-07-19 10:45:42 +08:00
|
|
|
|
|
|
|
memset(tp, 0, sizeof(*tp));
|
|
|
|
|
|
|
|
if (dmi_name_in_vendors("IBM"))
|
|
|
|
tp->vendor = PCI_VENDOR_ID_IBM;
|
|
|
|
else if (dmi_name_in_vendors("LENOVO"))
|
|
|
|
tp->vendor = PCI_VENDOR_ID_LENOVO;
|
|
|
|
else
|
2008-07-21 20:15:51 +08:00
|
|
|
return 0;
|
2007-07-19 10:45:42 +08:00
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
s = dmi_get_system_info(DMI_BIOS_VERSION);
|
|
|
|
tp->bios_version_str = kstrdup(s, GFP_KERNEL);
|
|
|
|
if (s && !tp->bios_version_str)
|
|
|
|
return -ENOMEM;
|
thinkpad-acpi: store fw version with strict checking
Extend the thinkpad model and firmware identification data with the
release serial number for the BIOS and firmware (when available), as
that is easier to parse and compare than the version strings.
We're going to greatly extend the use of the ThinkPad DMI data through
quirk lists, so it is best to be quite strict and make sure what we
get from DMI is exactly what we expect, otherwise quirk matching may
result in quite insane things.
IBM (and Lenovo, at least for the ThinkPad line) uses this schema for
firmware versioning and model:
Firmware model: Two digits, [0-9A-Z]
Firmware version: AABBCCDD, where
AA = firmware model, see above
BB = "ET" for BIOS, "HT" for EC
CC = release version, two digits, [0-9A-Z],
"00" < "09" < "0A" < "10" < "A0" < "ZZ"
DD = "WW"
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-31 00:25:05 +08:00
|
|
|
|
|
|
|
/* Really ancient ThinkPad 240X will fail this, which is fine */
|
|
|
|
if (!tpacpi_is_valid_fw_id(tp->bios_version_str, 'E'))
|
2008-07-21 20:15:51 +08:00
|
|
|
return 0;
|
thinkpad-acpi: store fw version with strict checking
Extend the thinkpad model and firmware identification data with the
release serial number for the BIOS and firmware (when available), as
that is easier to parse and compare than the version strings.
We're going to greatly extend the use of the ThinkPad DMI data through
quirk lists, so it is best to be quite strict and make sure what we
get from DMI is exactly what we expect, otherwise quirk matching may
result in quite insane things.
IBM (and Lenovo, at least for the ThinkPad line) uses this schema for
firmware versioning and model:
Firmware model: Two digits, [0-9A-Z]
Firmware version: AABBCCDD, where
AA = firmware model, see above
BB = "ET" for BIOS, "HT" for EC
CC = release version, two digits, [0-9A-Z],
"00" < "09" < "0A" < "10" < "A0" < "ZZ"
DD = "WW"
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-31 00:25:05 +08:00
|
|
|
|
2007-07-19 10:45:42 +08:00
|
|
|
tp->bios_model = tp->bios_version_str[0]
|
|
|
|
| (tp->bios_version_str[1] << 8);
|
thinkpad-acpi: store fw version with strict checking
Extend the thinkpad model and firmware identification data with the
release serial number for the BIOS and firmware (when available), as
that is easier to parse and compare than the version strings.
We're going to greatly extend the use of the ThinkPad DMI data through
quirk lists, so it is best to be quite strict and make sure what we
get from DMI is exactly what we expect, otherwise quirk matching may
result in quite insane things.
IBM (and Lenovo, at least for the ThinkPad line) uses this schema for
firmware versioning and model:
Firmware model: Two digits, [0-9A-Z]
Firmware version: AABBCCDD, where
AA = firmware model, see above
BB = "ET" for BIOS, "HT" for EC
CC = release version, two digits, [0-9A-Z],
"00" < "09" < "0A" < "10" < "A0" < "ZZ"
DD = "WW"
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-31 00:25:05 +08:00
|
|
|
tp->bios_release = (tp->bios_version_str[4] << 8)
|
|
|
|
| tp->bios_version_str[5];
|
2007-07-19 10:45:42 +08:00
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/*
|
|
|
|
* ThinkPad T23 or newer, A31 or newer, R50e or newer,
|
|
|
|
* X32 or newer, all Z series; Some models must have an
|
|
|
|
* up-to-date BIOS or they will not be detected.
|
|
|
|
*
|
|
|
|
* See http://thinkwiki.org/wiki/List_of_DMI_IDs
|
|
|
|
*/
|
|
|
|
while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
|
|
|
|
if (sscanf(dev->name,
|
|
|
|
"IBM ThinkPad Embedded Controller -[%17c",
|
|
|
|
ec_fw_string) == 1) {
|
|
|
|
ec_fw_string[sizeof(ec_fw_string) - 1] = 0;
|
|
|
|
ec_fw_string[strcspn(ec_fw_string, " ]")] = 0;
|
2007-07-19 10:45:42 +08:00
|
|
|
|
|
|
|
tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL);
|
2008-07-21 20:15:51 +08:00
|
|
|
if (!tp->ec_version_str)
|
|
|
|
return -ENOMEM;
|
thinkpad-acpi: store fw version with strict checking
Extend the thinkpad model and firmware identification data with the
release serial number for the BIOS and firmware (when available), as
that is easier to parse and compare than the version strings.
We're going to greatly extend the use of the ThinkPad DMI data through
quirk lists, so it is best to be quite strict and make sure what we
get from DMI is exactly what we expect, otherwise quirk matching may
result in quite insane things.
IBM (and Lenovo, at least for the ThinkPad line) uses this schema for
firmware versioning and model:
Firmware model: Two digits, [0-9A-Z]
Firmware version: AABBCCDD, where
AA = firmware model, see above
BB = "ET" for BIOS, "HT" for EC
CC = release version, two digits, [0-9A-Z],
"00" < "09" < "0A" < "10" < "A0" < "ZZ"
DD = "WW"
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-05-31 00:25:05 +08:00
|
|
|
|
|
|
|
if (tpacpi_is_valid_fw_id(ec_fw_string, 'H')) {
|
|
|
|
tp->ec_model = ec_fw_string[0]
|
|
|
|
| (ec_fw_string[1] << 8);
|
|
|
|
tp->ec_release = (ec_fw_string[4] << 8)
|
|
|
|
| ec_fw_string[5];
|
|
|
|
} else {
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"ThinkPad firmware release %s "
|
|
|
|
"doesn't match the known patterns\n",
|
|
|
|
ec_fw_string);
|
|
|
|
printk(TPACPI_NOTICE
|
|
|
|
"please report this to %s\n",
|
|
|
|
TPACPI_MAIL);
|
|
|
|
}
|
2007-07-19 10:45:42 +08:00
|
|
|
break;
|
2005-08-17 12:00:00 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
2007-07-19 10:45:42 +08:00
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
s = dmi_get_system_info(DMI_PRODUCT_VERSION);
|
|
|
|
if (s && !strnicmp(s, "ThinkPad", 8)) {
|
|
|
|
tp->model_str = kstrdup(s, GFP_KERNEL);
|
|
|
|
if (!tp->model_str)
|
|
|
|
return -ENOMEM;
|
2007-07-19 10:45:42 +08:00
|
|
|
}
|
2008-04-26 12:02:19 +08:00
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
s = dmi_get_system_info(DMI_PRODUCT_NAME);
|
|
|
|
tp->nummodel_str = kstrdup(s, GFP_KERNEL);
|
|
|
|
if (s && !tp->nummodel_str)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
return 0;
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
static int __init probe_for_thinkpad(void)
|
|
|
|
{
|
|
|
|
int is_thinkpad;
|
|
|
|
|
|
|
|
if (acpi_disabled)
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Non-ancient models have better DMI tagging, but very old models
|
|
|
|
* don't.
|
|
|
|
*/
|
2007-07-19 10:45:42 +08:00
|
|
|
is_thinkpad = (thinkpad_id.model_str != NULL);
|
2007-04-21 22:08:31 +08:00
|
|
|
|
|
|
|
/* ec is required because many other handles are relative to it */
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(ec);
|
2007-04-21 22:08:31 +08:00
|
|
|
if (!ec_handle) {
|
|
|
|
if (is_thinkpad)
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR
|
2007-04-21 22:08:31 +08:00
|
|
|
"Not yet supported ThinkPad detected!\n");
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
2007-04-21 22:08:34 +08:00
|
|
|
/*
|
|
|
|
* Risks a regression on very old machines, but reduces potential
|
|
|
|
* false positives a damn great deal
|
|
|
|
*/
|
|
|
|
if (!is_thinkpad)
|
2007-07-19 10:45:42 +08:00
|
|
|
is_thinkpad = (thinkpad_id.vendor == PCI_VENDOR_ID_IBM);
|
2007-04-21 22:08:34 +08:00
|
|
|
|
|
|
|
if (!is_thinkpad && !force_load)
|
|
|
|
return -ENODEV;
|
|
|
|
|
2007-04-21 22:08:31 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
/* Module init, exit, parameters */
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
static struct ibm_init_struct ibms_init[] __initdata = {
|
|
|
|
{
|
|
|
|
.init = thinkpad_acpi_driver_init,
|
|
|
|
.data = &thinkpad_acpi_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.init = hotkey_init,
|
|
|
|
.data = &hotkey_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.init = bluetooth_init,
|
|
|
|
.data = &bluetooth_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.init = wan_init,
|
|
|
|
.data = &wan_driver_data,
|
|
|
|
},
|
2009-01-11 13:01:03 +08:00
|
|
|
{
|
|
|
|
.init = uwb_init,
|
|
|
|
.data = &uwb_driver_data,
|
|
|
|
},
|
2008-02-16 12:17:54 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_VIDEO
|
2007-04-21 22:08:33 +08:00
|
|
|
{
|
|
|
|
.init = video_init,
|
|
|
|
.data = &video_driver_data,
|
|
|
|
},
|
2008-02-16 12:17:54 +08:00
|
|
|
#endif
|
2007-04-21 22:08:33 +08:00
|
|
|
{
|
|
|
|
.init = light_init,
|
|
|
|
.data = &light_driver_data,
|
|
|
|
},
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DOCK
|
|
|
|
{
|
|
|
|
.init = dock_init,
|
|
|
|
.data = &dock_driver_data[0],
|
|
|
|
},
|
|
|
|
{
|
2007-04-28 09:00:15 +08:00
|
|
|
.init = dock_init2,
|
2007-04-21 22:08:33 +08:00
|
|
|
.data = &dock_driver_data[1],
|
|
|
|
},
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_BAY
|
|
|
|
{
|
|
|
|
.init = bay_init,
|
|
|
|
.data = &bay_driver_data,
|
|
|
|
},
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
.init = cmos_init,
|
|
|
|
.data = &cmos_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.init = led_init,
|
|
|
|
.data = &led_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.init = beep_init,
|
|
|
|
.data = &beep_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.init = thermal_init,
|
|
|
|
.data = &thermal_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.data = &ecdump_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.init = brightness_init,
|
|
|
|
.data = &brightness_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.data = &volume_driver_data,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.init = fan_init,
|
|
|
|
.data = &fan_driver_data,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2007-02-07 05:13:44 +08:00
|
|
|
static int __init set_ibm_param(const char *val, struct kernel_param *kp)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
unsigned int i;
|
2007-04-21 22:08:33 +08:00
|
|
|
struct ibm_struct *ibm;
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-11-18 19:18:29 +08:00
|
|
|
if (!kp || !kp->name || !val)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2007-04-21 22:08:33 +08:00
|
|
|
for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
|
|
|
|
ibm = ibms_init[i].data;
|
2007-11-18 19:18:29 +08:00
|
|
|
WARN_ON(ibm == NULL);
|
|
|
|
|
|
|
|
if (!ibm || !ibm->name)
|
|
|
|
continue;
|
2007-04-21 22:08:33 +08:00
|
|
|
|
|
|
|
if (strcmp(ibm->name, kp->name) == 0 && ibm->write) {
|
|
|
|
if (strlen(val) > sizeof(ibms_init[i].param) - 2)
|
2005-08-17 12:00:00 +08:00
|
|
|
return -ENOSPC;
|
2007-04-21 22:08:33 +08:00
|
|
|
strcpy(ibms_init[i].param, val);
|
|
|
|
strcat(ibms_init[i].param, ",");
|
2005-08-17 12:00:00 +08:00
|
|
|
return 0;
|
|
|
|
}
|
2007-04-21 22:08:33 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
2007-03-24 04:33:57 +08:00
|
|
|
module_param(experimental, int, 0);
|
2008-01-08 23:02:47 +08:00
|
|
|
MODULE_PARM_DESC(experimental,
|
2008-01-08 23:02:49 +08:00
|
|
|
"Enables experimental features when non-zero");
|
2007-03-24 04:33:57 +08:00
|
|
|
|
2007-04-21 22:08:30 +08:00
|
|
|
module_param_named(debug, dbg_level, uint, 0);
|
2008-01-08 23:02:47 +08:00
|
|
|
MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
|
2007-04-21 22:08:30 +08:00
|
|
|
|
2007-07-19 10:45:41 +08:00
|
|
|
module_param(force_load, bool, 0);
|
2008-01-08 23:02:47 +08:00
|
|
|
MODULE_PARM_DESC(force_load,
|
2008-01-08 23:02:49 +08:00
|
|
|
"Attempts to load the driver even on a "
|
|
|
|
"mis-identified ThinkPad when true");
|
2007-04-21 22:08:34 +08:00
|
|
|
|
2007-07-19 10:45:41 +08:00
|
|
|
module_param_named(fan_control, fan_control_allowed, bool, 0);
|
2008-01-08 23:02:47 +08:00
|
|
|
MODULE_PARM_DESC(fan_control,
|
2008-01-08 23:02:49 +08:00
|
|
|
"Enables setting fan parameters features when true");
|
2007-04-28 09:00:09 +08:00
|
|
|
|
2009-04-04 12:25:53 +08:00
|
|
|
module_param_named(brightness_mode, brightness_mode, uint, 0);
|
2008-01-08 23:02:47 +08:00
|
|
|
MODULE_PARM_DESC(brightness_mode,
|
2008-01-08 23:02:49 +08:00
|
|
|
"Selects brightness control strategy: "
|
2009-04-04 12:25:53 +08:00
|
|
|
"0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM");
|
2007-07-19 10:45:43 +08:00
|
|
|
|
2007-10-31 04:02:07 +08:00
|
|
|
module_param(brightness_enable, uint, 0);
|
2008-01-08 23:02:47 +08:00
|
|
|
MODULE_PARM_DESC(brightness_enable,
|
2008-01-08 23:02:49 +08:00
|
|
|
"Enables backlight control when 1, disables when 0");
|
2007-10-31 04:02:07 +08:00
|
|
|
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
module_param(hotkey_report_mode, uint, 0);
|
2008-01-08 23:02:47 +08:00
|
|
|
MODULE_PARM_DESC(hotkey_report_mode,
|
2008-01-08 23:02:49 +08:00
|
|
|
"used for backwards compatibility with userspace, "
|
|
|
|
"see documentation");
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
#define TPACPI_PARAM(feature) \
|
2008-01-08 23:02:47 +08:00
|
|
|
module_param_call(feature, set_ibm_param, NULL, NULL, 0); \
|
2008-02-16 12:17:50 +08:00
|
|
|
MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command " \
|
2008-01-08 23:02:49 +08:00
|
|
|
"at module load, see documentation")
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_PARAM(hotkey);
|
|
|
|
TPACPI_PARAM(bluetooth);
|
|
|
|
TPACPI_PARAM(video);
|
|
|
|
TPACPI_PARAM(light);
|
2007-03-29 12:58:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DOCK
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_PARAM(dock);
|
2006-02-24 09:56:06 +08:00
|
|
|
#endif
|
2007-03-29 12:58:41 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_BAY
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_PARAM(bay);
|
2007-03-29 12:58:41 +08:00
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_BAY */
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_PARAM(cmos);
|
|
|
|
TPACPI_PARAM(led);
|
|
|
|
TPACPI_PARAM(beep);
|
|
|
|
TPACPI_PARAM(ecdump);
|
|
|
|
TPACPI_PARAM(brightness);
|
|
|
|
TPACPI_PARAM(volume);
|
|
|
|
TPACPI_PARAM(fan);
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2009-01-11 13:01:00 +08:00
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
module_param(dbg_wlswemul, uint, 0);
|
|
|
|
MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation");
|
|
|
|
module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0);
|
|
|
|
MODULE_PARM_DESC(wlsw_state,
|
|
|
|
"Initial state of the emulated WLSW switch");
|
|
|
|
|
|
|
|
module_param(dbg_bluetoothemul, uint, 0);
|
|
|
|
MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation");
|
|
|
|
module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0);
|
|
|
|
MODULE_PARM_DESC(bluetooth_state,
|
|
|
|
"Initial state of the emulated bluetooth switch");
|
|
|
|
|
|
|
|
module_param(dbg_wwanemul, uint, 0);
|
|
|
|
MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation");
|
|
|
|
module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0);
|
|
|
|
MODULE_PARM_DESC(wwan_state,
|
|
|
|
"Initial state of the emulated WWAN switch");
|
2009-01-11 13:01:03 +08:00
|
|
|
|
|
|
|
module_param(dbg_uwbemul, uint, 0);
|
|
|
|
MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation");
|
|
|
|
module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0);
|
|
|
|
MODULE_PARM_DESC(uwb_state,
|
|
|
|
"Initial state of the emulated UWB switch");
|
2009-01-11 13:01:00 +08:00
|
|
|
#endif
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
static void thinkpad_acpi_module_exit(void)
|
|
|
|
{
|
|
|
|
struct ibm_struct *ibm, *itmp;
|
|
|
|
|
|
|
|
tpacpi_lifecycle = TPACPI_LIFE_EXITING;
|
|
|
|
|
|
|
|
list_for_each_entry_safe_reverse(ibm, itmp,
|
|
|
|
&tpacpi_all_drivers,
|
|
|
|
all_drivers) {
|
|
|
|
ibm_exit(ibm);
|
|
|
|
}
|
|
|
|
|
|
|
|
dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n");
|
|
|
|
|
|
|
|
if (tpacpi_inputdev) {
|
|
|
|
if (tp_features.input_device_registered)
|
|
|
|
input_unregister_device(tpacpi_inputdev);
|
|
|
|
else
|
|
|
|
input_free_device(tpacpi_inputdev);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (tpacpi_hwmon)
|
|
|
|
hwmon_device_unregister(tpacpi_hwmon);
|
|
|
|
|
|
|
|
if (tp_features.sensors_pdev_attrs_registered)
|
|
|
|
device_remove_file(&tpacpi_sensors_pdev->dev,
|
|
|
|
&dev_attr_thinkpad_acpi_pdev_name);
|
|
|
|
if (tpacpi_sensors_pdev)
|
|
|
|
platform_device_unregister(tpacpi_sensors_pdev);
|
|
|
|
if (tpacpi_pdev)
|
|
|
|
platform_device_unregister(tpacpi_pdev);
|
|
|
|
|
|
|
|
if (tp_features.sensors_pdrv_attrs_registered)
|
|
|
|
tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver);
|
|
|
|
if (tp_features.platform_drv_attrs_registered)
|
|
|
|
tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver);
|
|
|
|
|
|
|
|
if (tp_features.sensors_pdrv_registered)
|
|
|
|
platform_driver_unregister(&tpacpi_hwmon_pdriver);
|
|
|
|
|
|
|
|
if (tp_features.platform_drv_registered)
|
|
|
|
platform_driver_unregister(&tpacpi_pdriver);
|
|
|
|
|
|
|
|
if (proc_dir)
|
2008-01-08 23:02:48 +08:00
|
|
|
remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir);
|
2008-01-08 23:02:45 +08:00
|
|
|
|
2008-04-26 12:02:28 +08:00
|
|
|
if (tpacpi_wq)
|
|
|
|
destroy_workqueue(tpacpi_wq);
|
|
|
|
|
2008-01-08 23:02:45 +08:00
|
|
|
kfree(thinkpad_id.bios_version_str);
|
|
|
|
kfree(thinkpad_id.ec_version_str);
|
|
|
|
kfree(thinkpad_id.model_str);
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:44 +08:00
|
|
|
|
2007-04-21 22:08:27 +08:00
|
|
|
static int __init thinkpad_acpi_module_init(void)
|
2005-04-17 06:20:36 +08:00
|
|
|
{
|
|
|
|
int ret, i;
|
|
|
|
|
2007-09-23 22:39:02 +08:00
|
|
|
tpacpi_lifecycle = TPACPI_LIFE_INIT;
|
|
|
|
|
ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED option
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because
it would create a legacy we don't want to support.
CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is
now moot with the addition of the netlink ACPI event report interface to
the ACPI core.
Now that ACPI core can send events over netlink, we can use a different
strategy to keep backwards compatibility with older userspace, without the
need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived
before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline
kernel, even, which is Good.
This patch is in sync with some changes to thinkpad-acpi backports, that
will keep things sane for userspace across different combinations of kernel
versions, thinkpad-acpi backports (or the lack thereof), and userspace
capabilities:
Unless a module parameter is used, thinkpad-acpi will now behave in such a
way that it will work well (by default) with userspace that still uses only
the old ACPI procfs event interface and doesn't care for thinkpad-acpi
input devices.
It will also always work well with userspace that has been updated to use
both the thinkpad-acpi input devices, and ACPI core netlink event
interface, regardless of any module parameter.
The module parameter was added to allow thinkpad-acpi to work with
userspace that has been partially updated to use thinkpad-acpi input
devices, but not the new ACPI core netlink event interface. To use this
mode of hot key reporting, one has to specify the hotkey_report_mode=2
module parameter.
The thinkpad-acpi driver exports the value of hotkey_report_mode through
sysfs, as well. thinkpad-acpi backports to older kernels, that do not
support the new ACPI core netlink interface, have code to allow userspace
to switch hotkey_report_mode at runtime through sysfs. This capability
will not be provided in mainline thinkpad-acpi as it is not needed there.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Richard Hughes <hughsient@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-04 22:13:15 +08:00
|
|
|
/* Parameter checking */
|
|
|
|
if (hotkey_report_mode > 2)
|
|
|
|
return -EINVAL;
|
|
|
|
|
2007-04-24 22:48:12 +08:00
|
|
|
/* Driver-level probe */
|
2007-07-19 10:45:42 +08:00
|
|
|
|
2008-07-21 20:15:51 +08:00
|
|
|
ret = get_thinkpad_model_data(&thinkpad_id);
|
|
|
|
if (ret) {
|
|
|
|
printk(TPACPI_ERR
|
|
|
|
"unable to get DMI data: %d\n", ret);
|
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
}
|
2007-04-21 22:08:31 +08:00
|
|
|
ret = probe_for_thinkpad();
|
2007-07-19 10:45:42 +08:00
|
|
|
if (ret) {
|
|
|
|
thinkpad_acpi_module_exit();
|
2007-04-21 22:08:31 +08:00
|
|
|
return ret;
|
2007-07-19 10:45:42 +08:00
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-04-24 22:48:12 +08:00
|
|
|
/* Driver initialization */
|
2007-07-19 10:45:42 +08:00
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
TPACPI_ACPIHANDLE_INIT(ecrd);
|
|
|
|
TPACPI_ACPIHANDLE_INIT(ecwr);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2008-04-26 12:02:28 +08:00
|
|
|
tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME);
|
|
|
|
if (!tpacpi_wq) {
|
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2008-01-08 23:02:48 +08:00
|
|
|
proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir);
|
2005-04-17 06:20:36 +08:00
|
|
|
if (!proc_dir) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"unable to create proc dir " TPACPI_PROC_DIR);
|
2007-04-21 22:08:27 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
2005-04-17 06:20:36 +08:00
|
|
|
return -ENODEV;
|
|
|
|
}
|
2005-08-17 12:00:00 +08:00
|
|
|
|
2007-04-24 22:48:12 +08:00
|
|
|
ret = platform_driver_register(&tpacpi_pdriver);
|
|
|
|
if (ret) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"unable to register main platform driver\n");
|
2007-04-24 22:48:12 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
}
|
2007-07-28 04:04:40 +08:00
|
|
|
tp_features.platform_drv_registered = 1;
|
|
|
|
|
2007-09-25 17:38:03 +08:00
|
|
|
ret = platform_driver_register(&tpacpi_hwmon_pdriver);
|
|
|
|
if (ret) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"unable to register hwmon platform driver\n");
|
2007-09-25 17:38:03 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
tp_features.sensors_pdrv_registered = 1;
|
|
|
|
|
2007-04-24 22:48:13 +08:00
|
|
|
ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver);
|
2007-09-23 22:39:07 +08:00
|
|
|
if (!ret) {
|
|
|
|
tp_features.platform_drv_attrs_registered = 1;
|
2008-01-08 23:02:49 +08:00
|
|
|
ret = tpacpi_create_driver_attributes(
|
|
|
|
&tpacpi_hwmon_pdriver.driver);
|
2007-09-23 22:39:07 +08:00
|
|
|
}
|
2007-04-24 22:48:13 +08:00
|
|
|
if (ret) {
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"unable to create sysfs driver attributes\n");
|
2007-04-24 22:48:13 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
}
|
2007-09-23 22:39:07 +08:00
|
|
|
tp_features.sensors_pdrv_attrs_registered = 1;
|
2007-04-24 22:48:13 +08:00
|
|
|
|
2007-04-24 22:48:12 +08:00
|
|
|
|
|
|
|
/* Device initialization */
|
2008-01-08 23:02:48 +08:00
|
|
|
tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1,
|
2007-04-24 22:48:12 +08:00
|
|
|
NULL, 0);
|
|
|
|
if (IS_ERR(tpacpi_pdev)) {
|
|
|
|
ret = PTR_ERR(tpacpi_pdev);
|
|
|
|
tpacpi_pdev = NULL;
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "unable to register platform device\n");
|
2007-04-24 22:48:12 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
}
|
2007-09-25 17:38:03 +08:00
|
|
|
tpacpi_sensors_pdev = platform_device_register_simple(
|
2008-01-08 23:02:49 +08:00
|
|
|
TPACPI_HWMON_DRVR_NAME,
|
|
|
|
-1, NULL, 0);
|
2007-09-25 17:38:03 +08:00
|
|
|
if (IS_ERR(tpacpi_sensors_pdev)) {
|
|
|
|
ret = PTR_ERR(tpacpi_sensors_pdev);
|
|
|
|
tpacpi_sensors_pdev = NULL;
|
2008-01-08 23:02:49 +08:00
|
|
|
printk(TPACPI_ERR
|
|
|
|
"unable to register hwmon platform device\n");
|
2007-09-25 17:38:03 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
ret = device_create_file(&tpacpi_sensors_pdev->dev,
|
|
|
|
&dev_attr_thinkpad_acpi_pdev_name);
|
|
|
|
if (ret) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR
|
2008-01-08 23:02:49 +08:00
|
|
|
"unable to create sysfs hwmon device attributes\n");
|
2007-09-25 17:38:03 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
tp_features.sensors_pdev_attrs_registered = 1;
|
|
|
|
tpacpi_hwmon = hwmon_device_register(&tpacpi_sensors_pdev->dev);
|
2007-04-24 22:48:12 +08:00
|
|
|
if (IS_ERR(tpacpi_hwmon)) {
|
|
|
|
ret = PTR_ERR(tpacpi_hwmon);
|
|
|
|
tpacpi_hwmon = NULL;
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "unable to register hwmon device\n");
|
2007-04-24 22:48:12 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
}
|
2007-09-23 22:39:01 +08:00
|
|
|
mutex_init(&tpacpi_inputdev_send_mutex);
|
2007-07-19 10:45:34 +08:00
|
|
|
tpacpi_inputdev = input_allocate_device();
|
|
|
|
if (!tpacpi_inputdev) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "unable to allocate input device\n");
|
2007-07-19 10:45:34 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return -ENOMEM;
|
|
|
|
} else {
|
|
|
|
/* Prepare input device, but don't register */
|
|
|
|
tpacpi_inputdev->name = "ThinkPad Extra Buttons";
|
2008-01-08 23:02:48 +08:00
|
|
|
tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0";
|
2007-07-19 10:45:34 +08:00
|
|
|
tpacpi_inputdev->id.bustype = BUS_HOST;
|
2007-07-19 10:45:44 +08:00
|
|
|
tpacpi_inputdev->id.vendor = (thinkpad_id.vendor) ?
|
|
|
|
thinkpad_id.vendor :
|
|
|
|
PCI_VENDOR_ID_IBM;
|
2007-07-19 10:45:34 +08:00
|
|
|
tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT;
|
|
|
|
tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION;
|
|
|
|
}
|
2007-04-21 22:08:33 +08:00
|
|
|
for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
|
|
|
|
ret = ibm_init(&ibms_init[i]);
|
|
|
|
if (ret >= 0 && *ibms_init[i].param)
|
|
|
|
ret = ibms_init[i].data->write(ibms_init[i].param);
|
2005-04-17 06:20:36 +08:00
|
|
|
if (ret < 0) {
|
2007-04-21 22:08:27 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
2005-04-17 06:20:36 +08:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
}
|
2007-07-19 10:45:34 +08:00
|
|
|
ret = input_register_device(tpacpi_inputdev);
|
|
|
|
if (ret < 0) {
|
2008-01-08 23:02:48 +08:00
|
|
|
printk(TPACPI_ERR "unable to register input device\n");
|
2007-07-19 10:45:34 +08:00
|
|
|
thinkpad_acpi_module_exit();
|
|
|
|
return ret;
|
|
|
|
} else {
|
|
|
|
tp_features.input_device_registered = 1;
|
|
|
|
}
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2007-09-23 22:39:02 +08:00
|
|
|
tpacpi_lifecycle = TPACPI_LIFE_RUNNING;
|
2005-04-17 06:20:36 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-04-26 12:02:22 +08:00
|
|
|
MODULE_ALIAS(TPACPI_DRVR_SHORTNAME);
|
|
|
|
|
2009-04-14 10:44:13 +08:00
|
|
|
/*
|
|
|
|
* This will autoload the driver in almost every ThinkPad
|
|
|
|
* in widespread use.
|
|
|
|
*
|
|
|
|
* Only _VERY_ old models, like the 240, 240x and 570 lack
|
|
|
|
* the HKEY event interface.
|
|
|
|
*/
|
|
|
|
MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids);
|
|
|
|
|
2008-01-08 23:02:47 +08:00
|
|
|
/*
|
|
|
|
* DMI matching for module autoloading
|
|
|
|
*
|
|
|
|
* See http://thinkwiki.org/wiki/List_of_DMI_IDs
|
|
|
|
* See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
|
|
|
|
*
|
|
|
|
* Only models listed in thinkwiki will be supported, so add yours
|
|
|
|
* if it is not there yet.
|
|
|
|
*/
|
|
|
|
#define IBM_BIOS_MODULE_ALIAS(__type) \
|
thinkpad-acpi: fix module autoloading for older models
Looking at the source, there seems to be a missing * to match my DMI
string. I mean for newer IBM and Lenovo's laptops you match either one
of the following:
MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*");
While for older Thinkpads, you do this (for instance):
IBM_BIOS_MODULE_ALIAS("1[0,3,6,8,A-G,I,K,M-P,S,T]");
with IBM_BIOS_MODULE_ALIAS being MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW")
Note there's no * terminating the string. As result, udev doesn't load
anything because modprobe cannot find anything matching this (my
machine actually):
udevtest: run: '/sbin/modprobe dmi:bvnIBM:bvr1IET71WW(2.10):bd06/16/2006:svnIBM:pn236621U:pvrNotAv
Signed-off-by: Mathieu Chouquet-Stringer <mchouque@free.fr>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-03-14 23:35:26 +08:00
|
|
|
MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*")
|
2008-01-08 23:02:47 +08:00
|
|
|
|
|
|
|
/* Ancient thinkpad BIOSes have to be identified by
|
|
|
|
* BIOS type or model number, and there are far less
|
|
|
|
* BIOS types than model numbers... */
|
2009-04-14 10:44:13 +08:00
|
|
|
IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */
|
2008-01-08 23:02:47 +08:00
|
|
|
|
2009-04-14 10:44:12 +08:00
|
|
|
MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>");
|
|
|
|
MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>");
|
2008-01-08 23:02:48 +08:00
|
|
|
MODULE_DESCRIPTION(TPACPI_DESC);
|
|
|
|
MODULE_VERSION(TPACPI_VERSION);
|
2008-01-08 23:02:47 +08:00
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
|
2007-04-21 22:08:27 +08:00
|
|
|
module_init(thinkpad_acpi_module_init);
|
|
|
|
module_exit(thinkpad_acpi_module_exit);
|