1900 lines
48 KiB
C
1900 lines
48 KiB
C
/*
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* toshiba_acpi.c - Toshiba Laptop ACPI Extras
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*
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*
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* Copyright (C) 2002-2004 John Belmonte
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* Copyright (C) 2008 Philip Langdale
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* Copyright (C) 2010 Pierre Ducroquet
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* Copyright (C) 2014 Azael Avalos
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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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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* The devolpment page for this driver is located at
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* http://memebeam.org/toys/ToshibaAcpiDriver.
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*
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* Credits:
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* Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
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* engineering the Windows drivers
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* Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
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* Rob Miller - TV out and hotkeys help
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*
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*
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* TODO
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*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define TOSHIBA_ACPI_VERSION "0.20"
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#define PROC_INTERFACE_VERSION 1
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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/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/backlight.h>
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#include <linux/rfkill.h>
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#include <linux/input.h>
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#include <linux/input/sparse-keymap.h>
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#include <linux/leds.h>
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#include <linux/slab.h>
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#include <linux/workqueue.h>
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#include <linux/i8042.h>
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#include <linux/acpi.h>
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#include <linux/dmi.h>
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#include <asm/uaccess.h>
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MODULE_AUTHOR("John Belmonte");
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MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
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MODULE_LICENSE("GPL");
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#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
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/* Scan code for Fn key on TOS1900 models */
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#define TOS1900_FN_SCAN 0x6e
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/* Toshiba ACPI method paths */
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#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
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/* Toshiba HCI interface definitions
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*
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* HCI is Toshiba's "Hardware Control Interface" which is supposed to
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* be uniform across all their models. Ideally we would just call
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* dedicated ACPI methods instead of using this primitive interface.
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* However the ACPI methods seem to be incomplete in some areas (for
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* example they allow setting, but not reading, the LCD brightness value),
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* so this is still useful.
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*
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* SCI stands for "System Configuration Interface" which aim is to
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* conceal differences in hardware between different models.
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*/
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#define HCI_WORDS 6
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/* operations */
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#define HCI_SET 0xff00
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#define HCI_GET 0xfe00
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#define SCI_OPEN 0xf100
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#define SCI_CLOSE 0xf200
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#define SCI_GET 0xf300
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#define SCI_SET 0xf400
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/* return codes */
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#define HCI_SUCCESS 0x0000
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#define HCI_FAILURE 0x1000
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#define HCI_NOT_SUPPORTED 0x8000
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#define HCI_EMPTY 0x8c00
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#define HCI_DATA_NOT_AVAILABLE 0x8d20
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#define HCI_NOT_INITIALIZED 0x8d50
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#define SCI_OPEN_CLOSE_OK 0x0044
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#define SCI_ALREADY_OPEN 0x8100
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#define SCI_NOT_OPENED 0x8200
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#define SCI_INPUT_DATA_ERROR 0x8300
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#define SCI_NOT_PRESENT 0x8600
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/* registers */
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#define HCI_FAN 0x0004
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#define HCI_TR_BACKLIGHT 0x0005
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#define HCI_SYSTEM_EVENT 0x0016
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#define HCI_VIDEO_OUT 0x001c
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#define HCI_HOTKEY_EVENT 0x001e
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#define HCI_LCD_BRIGHTNESS 0x002a
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#define HCI_WIRELESS 0x0056
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#define HCI_ACCELEROMETER 0x006d
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#define HCI_KBD_ILLUMINATION 0x0095
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#define HCI_ECO_MODE 0x0097
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#define HCI_ACCELEROMETER2 0x00a6
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#define SCI_ILLUMINATION 0x014e
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#define SCI_KBD_ILLUM_STATUS 0x015c
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#define SCI_TOUCHPAD 0x050e
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/* field definitions */
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#define HCI_ACCEL_MASK 0x7fff
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#define HCI_HOTKEY_DISABLE 0x0b
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#define HCI_HOTKEY_ENABLE 0x09
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#define HCI_LCD_BRIGHTNESS_BITS 3
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#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
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#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
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#define HCI_MISC_SHIFT 0x10
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#define HCI_VIDEO_OUT_LCD 0x1
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#define HCI_VIDEO_OUT_CRT 0x2
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#define HCI_VIDEO_OUT_TV 0x4
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#define HCI_WIRELESS_KILL_SWITCH 0x01
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#define HCI_WIRELESS_BT_PRESENT 0x0f
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#define HCI_WIRELESS_BT_ATTACH 0x40
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#define HCI_WIRELESS_BT_POWER 0x80
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#define SCI_KBD_MODE_FNZ 0x1
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#define SCI_KBD_MODE_AUTO 0x2
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struct toshiba_acpi_dev {
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struct acpi_device *acpi_dev;
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const char *method_hci;
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struct rfkill *bt_rfk;
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struct input_dev *hotkey_dev;
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struct work_struct hotkey_work;
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struct backlight_device *backlight_dev;
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struct led_classdev led_dev;
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struct led_classdev kbd_led;
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struct led_classdev eco_led;
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int force_fan;
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int last_key_event;
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int key_event_valid;
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int kbd_mode;
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int kbd_time;
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unsigned int illumination_supported:1;
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unsigned int video_supported:1;
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unsigned int fan_supported:1;
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unsigned int system_event_supported:1;
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unsigned int ntfy_supported:1;
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unsigned int info_supported:1;
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unsigned int tr_backlight_supported:1;
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unsigned int kbd_illum_supported:1;
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unsigned int kbd_led_registered:1;
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unsigned int touchpad_supported:1;
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unsigned int eco_supported:1;
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unsigned int accelerometer_supported:1;
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unsigned int sysfs_created:1;
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struct mutex mutex;
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};
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static struct toshiba_acpi_dev *toshiba_acpi;
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static const struct acpi_device_id toshiba_device_ids[] = {
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{"TOS6200", 0},
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{"TOS6208", 0},
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{"TOS1900", 0},
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{"", 0},
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};
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MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
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static const struct key_entry toshiba_acpi_keymap[] = {
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{ KE_KEY, 0x9e, { KEY_RFKILL } },
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{ KE_KEY, 0x101, { KEY_MUTE } },
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{ KE_KEY, 0x102, { KEY_ZOOMOUT } },
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{ KE_KEY, 0x103, { KEY_ZOOMIN } },
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{ KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
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{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
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{ KE_KEY, 0x13b, { KEY_COFFEE } },
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{ KE_KEY, 0x13c, { KEY_BATTERY } },
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{ KE_KEY, 0x13d, { KEY_SLEEP } },
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{ KE_KEY, 0x13e, { KEY_SUSPEND } },
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{ KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
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{ KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
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{ KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
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{ KE_KEY, 0x142, { KEY_WLAN } },
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{ KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
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{ KE_KEY, 0x17f, { KEY_FN } },
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{ KE_KEY, 0xb05, { KEY_PROG2 } },
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{ KE_KEY, 0xb06, { KEY_WWW } },
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{ KE_KEY, 0xb07, { KEY_MAIL } },
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{ KE_KEY, 0xb30, { KEY_STOP } },
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{ KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
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{ KE_KEY, 0xb32, { KEY_NEXTSONG } },
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{ KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
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{ KE_KEY, 0xb5a, { KEY_MEDIA } },
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{ KE_IGNORE, 0x1430, { KEY_RESERVED } },
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{ KE_END, 0 },
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};
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/* alternative keymap */
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static const struct dmi_system_id toshiba_alt_keymap_dmi[] = {
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{
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
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DMI_MATCH(DMI_PRODUCT_NAME, "Satellite M840"),
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},
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},
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{}
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};
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static const struct key_entry toshiba_acpi_alt_keymap[] = {
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{ KE_KEY, 0x157, { KEY_MUTE } },
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{ KE_KEY, 0x102, { KEY_ZOOMOUT } },
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{ KE_KEY, 0x103, { KEY_ZOOMIN } },
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{ KE_KEY, 0x139, { KEY_ZOOMRESET } },
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{ KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
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{ KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
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{ KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
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{ KE_KEY, 0x158, { KEY_WLAN } },
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{ KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
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{ KE_END, 0 },
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};
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/* utility
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*/
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static __inline__ void _set_bit(u32 * word, u32 mask, int value)
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{
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*word = (*word & ~mask) | (mask * value);
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}
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/* acpi interface wrappers
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*/
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static int write_acpi_int(const char *methodName, int val)
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{
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acpi_status status;
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status = acpi_execute_simple_method(NULL, (char *)methodName, val);
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return (status == AE_OK) ? 0 : -EIO;
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}
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/* Perform a raw HCI call. Here we don't care about input or output buffer
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* format.
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*/
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static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
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const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
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{
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struct acpi_object_list params;
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union acpi_object in_objs[HCI_WORDS];
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struct acpi_buffer results;
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union acpi_object out_objs[HCI_WORDS + 1];
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acpi_status status;
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int i;
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params.count = HCI_WORDS;
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params.pointer = in_objs;
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for (i = 0; i < HCI_WORDS; ++i) {
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in_objs[i].type = ACPI_TYPE_INTEGER;
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in_objs[i].integer.value = in[i];
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}
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results.length = sizeof(out_objs);
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results.pointer = out_objs;
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status = acpi_evaluate_object(dev->acpi_dev->handle,
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(char *)dev->method_hci, ¶ms,
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&results);
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if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
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for (i = 0; i < out_objs->package.count; ++i) {
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out[i] = out_objs->package.elements[i].integer.value;
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}
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}
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return status;
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}
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/* common hci tasks (get or set one or two value)
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*
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* In addition to the ACPI status, the HCI system returns a result which
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* may be useful (such as "not supported").
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*/
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static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg,
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u32 in1, u32 *result)
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{
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u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(dev, in, out);
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*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
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return status;
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}
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static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg,
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u32 *out1, u32 *result)
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{
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u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(dev, in, out);
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*out1 = out[2];
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*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
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return status;
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}
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static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg,
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u32 in1, u32 in2, u32 *result)
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{
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u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(dev, in, out);
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*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
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return status;
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}
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static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg,
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u32 *out1, u32 *out2, u32 *result)
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{
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u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(dev, in, out);
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*out1 = out[2];
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*out2 = out[3];
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*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
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return status;
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}
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/* common sci tasks
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*/
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static int sci_open(struct toshiba_acpi_dev *dev)
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{
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u32 in[HCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status;
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status = hci_raw(dev, in, out);
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if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
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pr_err("ACPI call to open SCI failed\n");
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return 0;
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}
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if (out[0] == SCI_OPEN_CLOSE_OK) {
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return 1;
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} else if (out[0] == SCI_ALREADY_OPEN) {
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pr_info("Toshiba SCI already opened\n");
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return 1;
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} else if (out[0] == SCI_NOT_PRESENT) {
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pr_info("Toshiba SCI is not present\n");
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}
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return 0;
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}
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static void sci_close(struct toshiba_acpi_dev *dev)
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{
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u32 in[HCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status;
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status = hci_raw(dev, in, out);
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if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
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pr_err("ACPI call to close SCI failed\n");
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return;
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}
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if (out[0] == SCI_OPEN_CLOSE_OK)
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return;
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else if (out[0] == SCI_NOT_OPENED)
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pr_info("Toshiba SCI not opened\n");
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else if (out[0] == SCI_NOT_PRESENT)
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pr_info("Toshiba SCI is not present\n");
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}
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static acpi_status sci_read(struct toshiba_acpi_dev *dev, u32 reg,
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u32 *out1, u32 *result)
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{
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u32 in[HCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(dev, in, out);
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*out1 = out[2];
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*result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
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return status;
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}
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static acpi_status sci_write(struct toshiba_acpi_dev *dev, u32 reg,
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u32 in1, u32 *result)
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{
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u32 in[HCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(dev, in, out);
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*result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
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return status;
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}
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/* Illumination support */
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static int toshiba_illumination_available(struct toshiba_acpi_dev *dev)
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{
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u32 in[HCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status;
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if (!sci_open(dev))
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return 0;
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status = hci_raw(dev, in, out);
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sci_close(dev);
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if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
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pr_err("ACPI call to query Illumination support failed\n");
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return 0;
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} else if (out[0] == HCI_NOT_SUPPORTED || out[1] != 1) {
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pr_info("Illumination device not available\n");
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return 0;
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}
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return 1;
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}
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static void toshiba_illumination_set(struct led_classdev *cdev,
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enum led_brightness brightness)
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{
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struct toshiba_acpi_dev *dev = container_of(cdev,
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struct toshiba_acpi_dev, led_dev);
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u32 state, result;
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acpi_status status;
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/* First request : initialize communication. */
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if (!sci_open(dev))
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return;
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/* Switch the illumination on/off */
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state = brightness ? 1 : 0;
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status = sci_write(dev, SCI_ILLUMINATION, state, &result);
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sci_close(dev);
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if (ACPI_FAILURE(status)) {
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pr_err("ACPI call for illumination failed\n");
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return;
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} else if (result == HCI_NOT_SUPPORTED) {
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pr_info("Illumination not supported\n");
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return;
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}
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}
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static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
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{
|
||
struct toshiba_acpi_dev *dev = container_of(cdev,
|
||
struct toshiba_acpi_dev, led_dev);
|
||
u32 state, result;
|
||
acpi_status status;
|
||
|
||
/* First request : initialize communication. */
|
||
if (!sci_open(dev))
|
||
return LED_OFF;
|
||
|
||
/* Check the illumination */
|
||
status = sci_read(dev, SCI_ILLUMINATION, &state, &result);
|
||
sci_close(dev);
|
||
if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call for illumination failed\n");
|
||
return LED_OFF;
|
||
} else if (result == HCI_NOT_SUPPORTED) {
|
||
pr_info("Illumination not supported\n");
|
||
return LED_OFF;
|
||
}
|
||
|
||
return state ? LED_FULL : LED_OFF;
|
||
}
|
||
|
||
/* KBD Illumination */
|
||
static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
|
||
{
|
||
u32 result;
|
||
acpi_status status;
|
||
|
||
if (!sci_open(dev))
|
||
return -EIO;
|
||
|
||
status = sci_write(dev, SCI_KBD_ILLUM_STATUS, time, &result);
|
||
sci_close(dev);
|
||
if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call to set KBD backlight status failed\n");
|
||
return -EIO;
|
||
} else if (result == HCI_NOT_SUPPORTED) {
|
||
pr_info("Keyboard backlight status not supported\n");
|
||
return -ENODEV;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
|
||
{
|
||
u32 result;
|
||
acpi_status status;
|
||
|
||
if (!sci_open(dev))
|
||
return -EIO;
|
||
|
||
status = sci_read(dev, SCI_KBD_ILLUM_STATUS, time, &result);
|
||
sci_close(dev);
|
||
if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call to get KBD backlight status failed\n");
|
||
return -EIO;
|
||
} else if (result == HCI_NOT_SUPPORTED) {
|
||
pr_info("Keyboard backlight status not supported\n");
|
||
return -ENODEV;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
|
||
{
|
||
struct toshiba_acpi_dev *dev = container_of(cdev,
|
||
struct toshiba_acpi_dev, kbd_led);
|
||
u32 state, result;
|
||
acpi_status status;
|
||
|
||
/* Check the keyboard backlight state */
|
||
status = hci_read1(dev, HCI_KBD_ILLUMINATION, &state, &result);
|
||
if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call to get the keyboard backlight failed\n");
|
||
return LED_OFF;
|
||
} else if (result == HCI_NOT_SUPPORTED) {
|
||
pr_info("Keyboard backlight not supported\n");
|
||
return LED_OFF;
|
||
}
|
||
|
||
return state ? LED_FULL : LED_OFF;
|
||
}
|
||
|
||
static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
|
||
enum led_brightness brightness)
|
||
{
|
||
struct toshiba_acpi_dev *dev = container_of(cdev,
|
||
struct toshiba_acpi_dev, kbd_led);
|
||
u32 state, result;
|
||
acpi_status status;
|
||
|
||
/* Set the keyboard backlight state */
|
||
state = brightness ? 1 : 0;
|
||
status = hci_write1(dev, HCI_KBD_ILLUMINATION, state, &result);
|
||
if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call to set KBD Illumination mode failed\n");
|
||
return;
|
||
} else if (result == HCI_NOT_SUPPORTED) {
|
||
pr_info("Keyboard backlight not supported\n");
|
||
return;
|
||
}
|
||
}
|
||
|
||
/* TouchPad support */
|
||
static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
|
||
{
|
||
u32 result;
|
||
acpi_status status;
|
||
|
||
if (!sci_open(dev))
|
||
return -EIO;
|
||
|
||
status = sci_write(dev, SCI_TOUCHPAD, state, &result);
|
||
sci_close(dev);
|
||
if (ACPI_FAILURE(status)) {
|
||
pr_err("ACPI call to set the touchpad failed\n");
|
||
return -EIO;
|
||
} else if (result == HCI_NOT_SUPPORTED) {
|
||
return -ENODEV;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
|
||
{
|
||
u32 result;
|
||
acpi_status status;
|
||
|
||
if (!sci_open(dev))
|
||
return -EIO;
|
||
|
||
status = sci_read(dev, SCI_TOUCHPAD, state, &result);
|
||
sci_close(dev);
|
||
if (ACPI_FAILURE(status)) {
|
||
pr_err("ACPI call to query the touchpad failed\n");
|
||
return -EIO;
|
||
} else if (result == HCI_NOT_SUPPORTED) {
|
||
return -ENODEV;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Eco Mode support */
|
||
static int toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
|
||
{
|
||
acpi_status status;
|
||
u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
|
||
u32 out[HCI_WORDS];
|
||
|
||
status = hci_raw(dev, in, out);
|
||
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
|
||
pr_info("ACPI call to get ECO led failed\n");
|
||
return 0;
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
static enum led_brightness toshiba_eco_mode_get_status(struct led_classdev *cdev)
|
||
{
|
||
struct toshiba_acpi_dev *dev = container_of(cdev,
|
||
struct toshiba_acpi_dev, eco_led);
|
||
u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
|
||
u32 out[HCI_WORDS];
|
||
acpi_status status;
|
||
|
||
status = hci_raw(dev, in, out);
|
||
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call to get ECO led failed\n");
|
||
return LED_OFF;
|
||
}
|
||
|
||
return out[2] ? LED_FULL : LED_OFF;
|
||
}
|
||
|
||
static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
|
||
enum led_brightness brightness)
|
||
{
|
||
struct toshiba_acpi_dev *dev = container_of(cdev,
|
||
struct toshiba_acpi_dev, eco_led);
|
||
u32 in[HCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
|
||
u32 out[HCI_WORDS];
|
||
acpi_status status;
|
||
|
||
/* Switch the Eco Mode led on/off */
|
||
in[2] = (brightness) ? 1 : 0;
|
||
status = hci_raw(dev, in, out);
|
||
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call to set ECO led failed\n");
|
||
return;
|
||
}
|
||
}
|
||
|
||
/* Accelerometer support */
|
||
static int toshiba_accelerometer_supported(struct toshiba_acpi_dev *dev)
|
||
{
|
||
u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
|
||
u32 out[HCI_WORDS];
|
||
acpi_status status;
|
||
|
||
/* Check if the accelerometer call exists,
|
||
* this call also serves as initialization
|
||
*/
|
||
status = hci_raw(dev, in, out);
|
||
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call to query the accelerometer failed\n");
|
||
return -EIO;
|
||
} else if (out[0] == HCI_DATA_NOT_AVAILABLE ||
|
||
out[0] == HCI_NOT_INITIALIZED) {
|
||
pr_err("Accelerometer not initialized\n");
|
||
return -EIO;
|
||
} else if (out[0] == HCI_NOT_SUPPORTED) {
|
||
pr_info("Accelerometer not supported\n");
|
||
return -ENODEV;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
|
||
u32 *xy, u32 *z)
|
||
{
|
||
u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
|
||
u32 out[HCI_WORDS];
|
||
acpi_status status;
|
||
|
||
/* Check the Accelerometer status */
|
||
status = hci_raw(dev, in, out);
|
||
if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
|
||
pr_err("ACPI call to query the accelerometer failed\n");
|
||
return -EIO;
|
||
}
|
||
|
||
*xy = out[2];
|
||
*z = out[4];
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Bluetooth rfkill handlers */
|
||
|
||
static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
|
||
{
|
||
u32 hci_result;
|
||
u32 value, value2;
|
||
|
||
value = 0;
|
||
value2 = 0;
|
||
hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
|
||
if (hci_result == HCI_SUCCESS)
|
||
*present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
|
||
|
||
return hci_result;
|
||
}
|
||
|
||
static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state)
|
||
{
|
||
u32 hci_result;
|
||
u32 value, value2;
|
||
|
||
value = 0;
|
||
value2 = 0x0001;
|
||
hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
|
||
|
||
*radio_state = value & HCI_WIRELESS_KILL_SWITCH;
|
||
return hci_result;
|
||
}
|
||
|
||
static int bt_rfkill_set_block(void *data, bool blocked)
|
||
{
|
||
struct toshiba_acpi_dev *dev = data;
|
||
u32 result1, result2;
|
||
u32 value;
|
||
int err;
|
||
bool radio_state;
|
||
|
||
value = (blocked == false);
|
||
|
||
mutex_lock(&dev->mutex);
|
||
if (hci_get_radio_state(dev, &radio_state) != HCI_SUCCESS) {
|
||
err = -EIO;
|
||
goto out;
|
||
}
|
||
|
||
if (!radio_state) {
|
||
err = 0;
|
||
goto out;
|
||
}
|
||
|
||
hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
|
||
hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
|
||
|
||
if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
|
||
err = -EIO;
|
||
else
|
||
err = 0;
|
||
out:
|
||
mutex_unlock(&dev->mutex);
|
||
return err;
|
||
}
|
||
|
||
static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
|
||
{
|
||
bool new_rfk_state;
|
||
bool value;
|
||
u32 hci_result;
|
||
struct toshiba_acpi_dev *dev = data;
|
||
|
||
mutex_lock(&dev->mutex);
|
||
|
||
hci_result = hci_get_radio_state(dev, &value);
|
||
if (hci_result != HCI_SUCCESS) {
|
||
/* Can't do anything useful */
|
||
mutex_unlock(&dev->mutex);
|
||
return;
|
||
}
|
||
|
||
new_rfk_state = value;
|
||
|
||
mutex_unlock(&dev->mutex);
|
||
|
||
if (rfkill_set_hw_state(rfkill, !new_rfk_state))
|
||
bt_rfkill_set_block(data, true);
|
||
}
|
||
|
||
static const struct rfkill_ops toshiba_rfk_ops = {
|
||
.set_block = bt_rfkill_set_block,
|
||
.poll = bt_rfkill_poll,
|
||
};
|
||
|
||
static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled)
|
||
{
|
||
u32 hci_result;
|
||
u32 status;
|
||
|
||
hci_read1(dev, HCI_TR_BACKLIGHT, &status, &hci_result);
|
||
*enabled = !status;
|
||
return hci_result == HCI_SUCCESS ? 0 : -EIO;
|
||
}
|
||
|
||
static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable)
|
||
{
|
||
u32 hci_result;
|
||
u32 value = !enable;
|
||
|
||
hci_write1(dev, HCI_TR_BACKLIGHT, value, &hci_result);
|
||
return hci_result == HCI_SUCCESS ? 0 : -EIO;
|
||
}
|
||
|
||
static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
|
||
|
||
static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
|
||
{
|
||
u32 hci_result;
|
||
u32 value;
|
||
int brightness = 0;
|
||
|
||
if (dev->tr_backlight_supported) {
|
||
bool enabled;
|
||
int ret = get_tr_backlight_status(dev, &enabled);
|
||
if (ret)
|
||
return ret;
|
||
if (enabled)
|
||
return 0;
|
||
brightness++;
|
||
}
|
||
|
||
hci_read1(dev, HCI_LCD_BRIGHTNESS, &value, &hci_result);
|
||
if (hci_result == HCI_SUCCESS)
|
||
return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
|
||
|
||
return -EIO;
|
||
}
|
||
|
||
static int get_lcd_brightness(struct backlight_device *bd)
|
||
{
|
||
struct toshiba_acpi_dev *dev = bl_get_data(bd);
|
||
return __get_lcd_brightness(dev);
|
||
}
|
||
|
||
static int lcd_proc_show(struct seq_file *m, void *v)
|
||
{
|
||
struct toshiba_acpi_dev *dev = m->private;
|
||
int value;
|
||
int levels;
|
||
|
||
if (!dev->backlight_dev)
|
||
return -ENODEV;
|
||
|
||
levels = dev->backlight_dev->props.max_brightness + 1;
|
||
value = get_lcd_brightness(dev->backlight_dev);
|
||
if (value >= 0) {
|
||
seq_printf(m, "brightness: %d\n", value);
|
||
seq_printf(m, "brightness_levels: %d\n", levels);
|
||
return 0;
|
||
}
|
||
|
||
pr_err("Error reading LCD brightness\n");
|
||
return -EIO;
|
||
}
|
||
|
||
static int lcd_proc_open(struct inode *inode, struct file *file)
|
||
{
|
||
return single_open(file, lcd_proc_show, PDE_DATA(inode));
|
||
}
|
||
|
||
static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
|
||
{
|
||
u32 hci_result;
|
||
|
||
if (dev->tr_backlight_supported) {
|
||
bool enable = !value;
|
||
int ret = set_tr_backlight_status(dev, enable);
|
||
if (ret)
|
||
return ret;
|
||
if (value)
|
||
value--;
|
||
}
|
||
|
||
value = value << HCI_LCD_BRIGHTNESS_SHIFT;
|
||
hci_write1(dev, HCI_LCD_BRIGHTNESS, value, &hci_result);
|
||
return hci_result == HCI_SUCCESS ? 0 : -EIO;
|
||
}
|
||
|
||
static int set_lcd_status(struct backlight_device *bd)
|
||
{
|
||
struct toshiba_acpi_dev *dev = bl_get_data(bd);
|
||
return set_lcd_brightness(dev, bd->props.brightness);
|
||
}
|
||
|
||
static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
|
||
size_t count, loff_t *pos)
|
||
{
|
||
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
|
||
char cmd[42];
|
||
size_t len;
|
||
int value;
|
||
int ret;
|
||
int levels = dev->backlight_dev->props.max_brightness + 1;
|
||
|
||
len = min(count, sizeof(cmd) - 1);
|
||
if (copy_from_user(cmd, buf, len))
|
||
return -EFAULT;
|
||
cmd[len] = '\0';
|
||
|
||
if (sscanf(cmd, " brightness : %i", &value) == 1 &&
|
||
value >= 0 && value < levels) {
|
||
ret = set_lcd_brightness(dev, value);
|
||
if (ret == 0)
|
||
ret = count;
|
||
} else {
|
||
ret = -EINVAL;
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
static const struct file_operations lcd_proc_fops = {
|
||
.owner = THIS_MODULE,
|
||
.open = lcd_proc_open,
|
||
.read = seq_read,
|
||
.llseek = seq_lseek,
|
||
.release = single_release,
|
||
.write = lcd_proc_write,
|
||
};
|
||
|
||
static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
|
||
{
|
||
u32 hci_result;
|
||
|
||
hci_read1(dev, HCI_VIDEO_OUT, status, &hci_result);
|
||
return hci_result == HCI_SUCCESS ? 0 : -EIO;
|
||
}
|
||
|
||
static int video_proc_show(struct seq_file *m, void *v)
|
||
{
|
||
struct toshiba_acpi_dev *dev = m->private;
|
||
u32 value;
|
||
int ret;
|
||
|
||
ret = get_video_status(dev, &value);
|
||
if (!ret) {
|
||
int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
|
||
int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
|
||
int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
|
||
seq_printf(m, "lcd_out: %d\n", is_lcd);
|
||
seq_printf(m, "crt_out: %d\n", is_crt);
|
||
seq_printf(m, "tv_out: %d\n", is_tv);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
static int video_proc_open(struct inode *inode, struct file *file)
|
||
{
|
||
return single_open(file, video_proc_show, PDE_DATA(inode));
|
||
}
|
||
|
||
static ssize_t video_proc_write(struct file *file, const char __user *buf,
|
||
size_t count, loff_t *pos)
|
||
{
|
||
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
|
||
char *cmd, *buffer;
|
||
int ret;
|
||
int value;
|
||
int remain = count;
|
||
int lcd_out = -1;
|
||
int crt_out = -1;
|
||
int tv_out = -1;
|
||
u32 video_out;
|
||
|
||
cmd = kmalloc(count + 1, GFP_KERNEL);
|
||
if (!cmd)
|
||
return -ENOMEM;
|
||
if (copy_from_user(cmd, buf, count)) {
|
||
kfree(cmd);
|
||
return -EFAULT;
|
||
}
|
||
cmd[count] = '\0';
|
||
|
||
buffer = cmd;
|
||
|
||
/* scan expression. Multiple expressions may be delimited with ;
|
||
*
|
||
* NOTE: to keep scanning simple, invalid fields are ignored
|
||
*/
|
||
while (remain) {
|
||
if (sscanf(buffer, " lcd_out : %i", &value) == 1)
|
||
lcd_out = value & 1;
|
||
else if (sscanf(buffer, " crt_out : %i", &value) == 1)
|
||
crt_out = value & 1;
|
||
else if (sscanf(buffer, " tv_out : %i", &value) == 1)
|
||
tv_out = value & 1;
|
||
/* advance to one character past the next ; */
|
||
do {
|
||
++buffer;
|
||
--remain;
|
||
}
|
||
while (remain && *(buffer - 1) != ';');
|
||
}
|
||
|
||
kfree(cmd);
|
||
|
||
ret = get_video_status(dev, &video_out);
|
||
if (!ret) {
|
||
unsigned int new_video_out = video_out;
|
||
if (lcd_out != -1)
|
||
_set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
|
||
if (crt_out != -1)
|
||
_set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
|
||
if (tv_out != -1)
|
||
_set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
|
||
/* To avoid unnecessary video disruption, only write the new
|
||
* video setting if something changed. */
|
||
if (new_video_out != video_out)
|
||
ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
|
||
}
|
||
|
||
return ret ? ret : count;
|
||
}
|
||
|
||
static const struct file_operations video_proc_fops = {
|
||
.owner = THIS_MODULE,
|
||
.open = video_proc_open,
|
||
.read = seq_read,
|
||
.llseek = seq_lseek,
|
||
.release = single_release,
|
||
.write = video_proc_write,
|
||
};
|
||
|
||
static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
|
||
{
|
||
u32 hci_result;
|
||
|
||
hci_read1(dev, HCI_FAN, status, &hci_result);
|
||
return hci_result == HCI_SUCCESS ? 0 : -EIO;
|
||
}
|
||
|
||
static int fan_proc_show(struct seq_file *m, void *v)
|
||
{
|
||
struct toshiba_acpi_dev *dev = m->private;
|
||
int ret;
|
||
u32 value;
|
||
|
||
ret = get_fan_status(dev, &value);
|
||
if (!ret) {
|
||
seq_printf(m, "running: %d\n", (value > 0));
|
||
seq_printf(m, "force_on: %d\n", dev->force_fan);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
static int fan_proc_open(struct inode *inode, struct file *file)
|
||
{
|
||
return single_open(file, fan_proc_show, PDE_DATA(inode));
|
||
}
|
||
|
||
static ssize_t fan_proc_write(struct file *file, const char __user *buf,
|
||
size_t count, loff_t *pos)
|
||
{
|
||
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
|
||
char cmd[42];
|
||
size_t len;
|
||
int value;
|
||
u32 hci_result;
|
||
|
||
len = min(count, sizeof(cmd) - 1);
|
||
if (copy_from_user(cmd, buf, len))
|
||
return -EFAULT;
|
||
cmd[len] = '\0';
|
||
|
||
if (sscanf(cmd, " force_on : %i", &value) == 1 &&
|
||
value >= 0 && value <= 1) {
|
||
hci_write1(dev, HCI_FAN, value, &hci_result);
|
||
if (hci_result != HCI_SUCCESS)
|
||
return -EIO;
|
||
else
|
||
dev->force_fan = value;
|
||
} else {
|
||
return -EINVAL;
|
||
}
|
||
|
||
return count;
|
||
}
|
||
|
||
static const struct file_operations fan_proc_fops = {
|
||
.owner = THIS_MODULE,
|
||
.open = fan_proc_open,
|
||
.read = seq_read,
|
||
.llseek = seq_lseek,
|
||
.release = single_release,
|
||
.write = fan_proc_write,
|
||
};
|
||
|
||
static int keys_proc_show(struct seq_file *m, void *v)
|
||
{
|
||
struct toshiba_acpi_dev *dev = m->private;
|
||
u32 hci_result;
|
||
u32 value;
|
||
|
||
if (!dev->key_event_valid && dev->system_event_supported) {
|
||
hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
|
||
if (hci_result == HCI_SUCCESS) {
|
||
dev->key_event_valid = 1;
|
||
dev->last_key_event = value;
|
||
} else if (hci_result == HCI_EMPTY) {
|
||
/* better luck next time */
|
||
} else if (hci_result == HCI_NOT_SUPPORTED) {
|
||
/* This is a workaround for an unresolved issue on
|
||
* some machines where system events sporadically
|
||
* become disabled. */
|
||
hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
|
||
pr_notice("Re-enabled hotkeys\n");
|
||
} else {
|
||
pr_err("Error reading hotkey status\n");
|
||
return -EIO;
|
||
}
|
||
}
|
||
|
||
seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
|
||
seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
|
||
return 0;
|
||
}
|
||
|
||
static int keys_proc_open(struct inode *inode, struct file *file)
|
||
{
|
||
return single_open(file, keys_proc_show, PDE_DATA(inode));
|
||
}
|
||
|
||
static ssize_t keys_proc_write(struct file *file, const char __user *buf,
|
||
size_t count, loff_t *pos)
|
||
{
|
||
struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
|
||
char cmd[42];
|
||
size_t len;
|
||
int value;
|
||
|
||
len = min(count, sizeof(cmd) - 1);
|
||
if (copy_from_user(cmd, buf, len))
|
||
return -EFAULT;
|
||
cmd[len] = '\0';
|
||
|
||
if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
|
||
dev->key_event_valid = 0;
|
||
} else {
|
||
return -EINVAL;
|
||
}
|
||
|
||
return count;
|
||
}
|
||
|
||
static const struct file_operations keys_proc_fops = {
|
||
.owner = THIS_MODULE,
|
||
.open = keys_proc_open,
|
||
.read = seq_read,
|
||
.llseek = seq_lseek,
|
||
.release = single_release,
|
||
.write = keys_proc_write,
|
||
};
|
||
|
||
static int version_proc_show(struct seq_file *m, void *v)
|
||
{
|
||
seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
|
||
seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
|
||
return 0;
|
||
}
|
||
|
||
static int version_proc_open(struct inode *inode, struct file *file)
|
||
{
|
||
return single_open(file, version_proc_show, PDE_DATA(inode));
|
||
}
|
||
|
||
static const struct file_operations version_proc_fops = {
|
||
.owner = THIS_MODULE,
|
||
.open = version_proc_open,
|
||
.read = seq_read,
|
||
.llseek = seq_lseek,
|
||
.release = single_release,
|
||
};
|
||
|
||
/* proc and module init
|
||
*/
|
||
|
||
#define PROC_TOSHIBA "toshiba"
|
||
|
||
static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
|
||
{
|
||
if (dev->backlight_dev)
|
||
proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
|
||
&lcd_proc_fops, dev);
|
||
if (dev->video_supported)
|
||
proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
|
||
&video_proc_fops, dev);
|
||
if (dev->fan_supported)
|
||
proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
|
||
&fan_proc_fops, dev);
|
||
if (dev->hotkey_dev)
|
||
proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
|
||
&keys_proc_fops, dev);
|
||
proc_create_data("version", S_IRUGO, toshiba_proc_dir,
|
||
&version_proc_fops, dev);
|
||
}
|
||
|
||
static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
|
||
{
|
||
if (dev->backlight_dev)
|
||
remove_proc_entry("lcd", toshiba_proc_dir);
|
||
if (dev->video_supported)
|
||
remove_proc_entry("video", toshiba_proc_dir);
|
||
if (dev->fan_supported)
|
||
remove_proc_entry("fan", toshiba_proc_dir);
|
||
if (dev->hotkey_dev)
|
||
remove_proc_entry("keys", toshiba_proc_dir);
|
||
remove_proc_entry("version", toshiba_proc_dir);
|
||
}
|
||
|
||
static const struct backlight_ops toshiba_backlight_data = {
|
||
.options = BL_CORE_SUSPENDRESUME,
|
||
.get_brightness = get_lcd_brightness,
|
||
.update_status = set_lcd_status,
|
||
};
|
||
|
||
/*
|
||
* Sysfs files
|
||
*/
|
||
|
||
static ssize_t toshiba_kbd_bl_mode_store(struct device *dev,
|
||
struct device_attribute *attr,
|
||
const char *buf, size_t count)
|
||
{
|
||
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
|
||
int mode = -1;
|
||
int time = -1;
|
||
|
||
if (sscanf(buf, "%i", &mode) != 1 && (mode != 2 || mode != 1))
|
||
return -EINVAL;
|
||
|
||
/* Set the Keyboard Backlight Mode where:
|
||
* Mode - Auto (2) | FN-Z (1)
|
||
* Auto - KBD backlight turns off automatically in given time
|
||
* FN-Z - KBD backlight "toggles" when hotkey pressed
|
||
*/
|
||
if (mode != -1 && toshiba->kbd_mode != mode) {
|
||
time = toshiba->kbd_time << HCI_MISC_SHIFT;
|
||
time = time + toshiba->kbd_mode;
|
||
if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
|
||
return -EIO;
|
||
toshiba->kbd_mode = mode;
|
||
}
|
||
|
||
return count;
|
||
}
|
||
|
||
static ssize_t toshiba_kbd_bl_mode_show(struct device *dev,
|
||
struct device_attribute *attr,
|
||
char *buf)
|
||
{
|
||
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
|
||
u32 time;
|
||
|
||
if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
|
||
return -EIO;
|
||
|
||
return sprintf(buf, "%i\n", time & 0x07);
|
||
}
|
||
|
||
static ssize_t toshiba_kbd_bl_timeout_store(struct device *dev,
|
||
struct device_attribute *attr,
|
||
const char *buf, size_t count)
|
||
{
|
||
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
|
||
int time = -1;
|
||
|
||
if (sscanf(buf, "%i", &time) != 1 && (time < 0 || time > 60))
|
||
return -EINVAL;
|
||
|
||
/* Set the Keyboard Backlight Timeout: 0-60 seconds */
|
||
if (time != -1 && toshiba->kbd_time != time) {
|
||
time = time << HCI_MISC_SHIFT;
|
||
time = (toshiba->kbd_mode == SCI_KBD_MODE_AUTO) ?
|
||
time + 1 : time + 2;
|
||
if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
|
||
return -EIO;
|
||
toshiba->kbd_time = time >> HCI_MISC_SHIFT;
|
||
}
|
||
|
||
return count;
|
||
}
|
||
|
||
static ssize_t toshiba_kbd_bl_timeout_show(struct device *dev,
|
||
struct device_attribute *attr,
|
||
char *buf)
|
||
{
|
||
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
|
||
u32 time;
|
||
|
||
if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
|
||
return -EIO;
|
||
|
||
return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
|
||
}
|
||
|
||
static ssize_t toshiba_touchpad_store(struct device *dev,
|
||
struct device_attribute *attr,
|
||
const char *buf, size_t count)
|
||
{
|
||
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
|
||
int state;
|
||
|
||
/* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
|
||
if (sscanf(buf, "%i", &state) == 1 && (state == 0 || state == 1)) {
|
||
if (toshiba_touchpad_set(toshiba, state) < 0)
|
||
return -EIO;
|
||
}
|
||
|
||
return count;
|
||
}
|
||
|
||
static ssize_t toshiba_touchpad_show(struct device *dev,
|
||
struct device_attribute *attr, char *buf)
|
||
{
|
||
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
|
||
u32 state;
|
||
int ret;
|
||
|
||
ret = toshiba_touchpad_get(toshiba, &state);
|
||
if (ret < 0)
|
||
return ret;
|
||
|
||
return sprintf(buf, "%i\n", state);
|
||
}
|
||
|
||
static ssize_t toshiba_position_show(struct device *dev,
|
||
struct device_attribute *attr, char *buf)
|
||
{
|
||
struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
|
||
u32 xyval, zval, tmp;
|
||
u16 x, y, z;
|
||
int ret;
|
||
|
||
xyval = zval = 0;
|
||
ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
|
||
if (ret < 0)
|
||
return ret;
|
||
|
||
x = xyval & HCI_ACCEL_MASK;
|
||
tmp = xyval >> HCI_MISC_SHIFT;
|
||
y = tmp & HCI_ACCEL_MASK;
|
||
z = zval & HCI_ACCEL_MASK;
|
||
|
||
return sprintf(buf, "%d %d %d\n", x, y, z);
|
||
}
|
||
|
||
static DEVICE_ATTR(kbd_backlight_mode, S_IRUGO | S_IWUSR,
|
||
toshiba_kbd_bl_mode_show, toshiba_kbd_bl_mode_store);
|
||
static DEVICE_ATTR(kbd_backlight_timeout, S_IRUGO | S_IWUSR,
|
||
toshiba_kbd_bl_timeout_show, toshiba_kbd_bl_timeout_store);
|
||
static DEVICE_ATTR(touchpad, S_IRUGO | S_IWUSR,
|
||
toshiba_touchpad_show, toshiba_touchpad_store);
|
||
static DEVICE_ATTR(position, S_IRUGO, toshiba_position_show, NULL);
|
||
|
||
static struct attribute *toshiba_attributes[] = {
|
||
&dev_attr_kbd_backlight_mode.attr,
|
||
&dev_attr_kbd_backlight_timeout.attr,
|
||
&dev_attr_touchpad.attr,
|
||
&dev_attr_position.attr,
|
||
NULL,
|
||
};
|
||
|
||
static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
|
||
struct attribute *attr, int idx)
|
||
{
|
||
struct device *dev = container_of(kobj, struct device, kobj);
|
||
struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
|
||
bool exists = true;
|
||
|
||
if (attr == &dev_attr_kbd_backlight_mode.attr)
|
||
exists = (drv->kbd_illum_supported) ? true : false;
|
||
else if (attr == &dev_attr_kbd_backlight_timeout.attr)
|
||
exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
|
||
else if (attr == &dev_attr_touchpad.attr)
|
||
exists = (drv->touchpad_supported) ? true : false;
|
||
else if (attr == &dev_attr_position.attr)
|
||
exists = (drv->accelerometer_supported) ? true : false;
|
||
|
||
return exists ? attr->mode : 0;
|
||
}
|
||
|
||
static struct attribute_group toshiba_attr_group = {
|
||
.is_visible = toshiba_sysfs_is_visible,
|
||
.attrs = toshiba_attributes,
|
||
};
|
||
|
||
static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
|
||
struct serio *port)
|
||
{
|
||
if (str & 0x20)
|
||
return false;
|
||
|
||
if (unlikely(data == 0xe0))
|
||
return false;
|
||
|
||
if ((data & 0x7f) == TOS1900_FN_SCAN) {
|
||
schedule_work(&toshiba_acpi->hotkey_work);
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
static void toshiba_acpi_hotkey_work(struct work_struct *work)
|
||
{
|
||
acpi_handle ec_handle = ec_get_handle();
|
||
acpi_status status;
|
||
|
||
if (!ec_handle)
|
||
return;
|
||
|
||
status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
|
||
if (ACPI_FAILURE(status))
|
||
pr_err("ACPI NTFY method execution failed\n");
|
||
}
|
||
|
||
/*
|
||
* Returns hotkey scancode, or < 0 on failure.
|
||
*/
|
||
static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
|
||
{
|
||
unsigned long long value;
|
||
acpi_status status;
|
||
|
||
status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
|
||
NULL, &value);
|
||
if (ACPI_FAILURE(status)) {
|
||
pr_err("ACPI INFO method execution failed\n");
|
||
return -EIO;
|
||
}
|
||
|
||
return value;
|
||
}
|
||
|
||
static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
|
||
int scancode)
|
||
{
|
||
if (scancode == 0x100)
|
||
return;
|
||
|
||
/* act on key press; ignore key release */
|
||
if (scancode & 0x80)
|
||
return;
|
||
|
||
if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
|
||
pr_info("Unknown key %x\n", scancode);
|
||
}
|
||
|
||
static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
|
||
{
|
||
acpi_status status;
|
||
acpi_handle ec_handle;
|
||
int error;
|
||
u32 hci_result;
|
||
const struct key_entry *keymap = toshiba_acpi_keymap;
|
||
|
||
dev->hotkey_dev = input_allocate_device();
|
||
if (!dev->hotkey_dev)
|
||
return -ENOMEM;
|
||
|
||
dev->hotkey_dev->name = "Toshiba input device";
|
||
dev->hotkey_dev->phys = "toshiba_acpi/input0";
|
||
dev->hotkey_dev->id.bustype = BUS_HOST;
|
||
|
||
if (dmi_check_system(toshiba_alt_keymap_dmi))
|
||
keymap = toshiba_acpi_alt_keymap;
|
||
error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
|
||
if (error)
|
||
goto err_free_dev;
|
||
|
||
/*
|
||
* For some machines the SCI responsible for providing hotkey
|
||
* notification doesn't fire. We can trigger the notification
|
||
* whenever the Fn key is pressed using the NTFY method, if
|
||
* supported, so if it's present set up an i8042 key filter
|
||
* for this purpose.
|
||
*/
|
||
status = AE_ERROR;
|
||
ec_handle = ec_get_handle();
|
||
if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
|
||
INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
|
||
|
||
error = i8042_install_filter(toshiba_acpi_i8042_filter);
|
||
if (error) {
|
||
pr_err("Error installing key filter\n");
|
||
goto err_free_keymap;
|
||
}
|
||
|
||
dev->ntfy_supported = 1;
|
||
}
|
||
|
||
/*
|
||
* Determine hotkey query interface. Prefer using the INFO
|
||
* method when it is available.
|
||
*/
|
||
if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
|
||
dev->info_supported = 1;
|
||
else {
|
||
hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
|
||
if (hci_result == HCI_SUCCESS)
|
||
dev->system_event_supported = 1;
|
||
}
|
||
|
||
if (!dev->info_supported && !dev->system_event_supported) {
|
||
pr_warn("No hotkey query interface found\n");
|
||
goto err_remove_filter;
|
||
}
|
||
|
||
status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL);
|
||
if (ACPI_FAILURE(status)) {
|
||
pr_info("Unable to enable hotkeys\n");
|
||
error = -ENODEV;
|
||
goto err_remove_filter;
|
||
}
|
||
|
||
error = input_register_device(dev->hotkey_dev);
|
||
if (error) {
|
||
pr_info("Unable to register input device\n");
|
||
goto err_remove_filter;
|
||
}
|
||
|
||
hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result);
|
||
return 0;
|
||
|
||
err_remove_filter:
|
||
if (dev->ntfy_supported)
|
||
i8042_remove_filter(toshiba_acpi_i8042_filter);
|
||
err_free_keymap:
|
||
sparse_keymap_free(dev->hotkey_dev);
|
||
err_free_dev:
|
||
input_free_device(dev->hotkey_dev);
|
||
dev->hotkey_dev = NULL;
|
||
return error;
|
||
}
|
||
|
||
static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
|
||
{
|
||
struct backlight_properties props;
|
||
int brightness;
|
||
int ret;
|
||
bool enabled;
|
||
|
||
/*
|
||
* Some machines don't support the backlight methods at all, and
|
||
* others support it read-only. Either of these is pretty useless,
|
||
* so only register the backlight device if the backlight method
|
||
* supports both reads and writes.
|
||
*/
|
||
brightness = __get_lcd_brightness(dev);
|
||
if (brightness < 0)
|
||
return 0;
|
||
ret = set_lcd_brightness(dev, brightness);
|
||
if (ret) {
|
||
pr_debug("Backlight method is read-only, disabling backlight support\n");
|
||
return 0;
|
||
}
|
||
|
||
/* Determine whether or not BIOS supports transflective backlight */
|
||
ret = get_tr_backlight_status(dev, &enabled);
|
||
dev->tr_backlight_supported = !ret;
|
||
|
||
memset(&props, 0, sizeof(props));
|
||
props.type = BACKLIGHT_PLATFORM;
|
||
props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
|
||
|
||
/* adding an extra level and having 0 change to transflective mode */
|
||
if (dev->tr_backlight_supported)
|
||
props.max_brightness++;
|
||
|
||
dev->backlight_dev = backlight_device_register("toshiba",
|
||
&dev->acpi_dev->dev,
|
||
dev,
|
||
&toshiba_backlight_data,
|
||
&props);
|
||
if (IS_ERR(dev->backlight_dev)) {
|
||
ret = PTR_ERR(dev->backlight_dev);
|
||
pr_err("Could not register toshiba backlight device\n");
|
||
dev->backlight_dev = NULL;
|
||
return ret;
|
||
}
|
||
|
||
dev->backlight_dev->props.brightness = brightness;
|
||
return 0;
|
||
}
|
||
|
||
static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
|
||
{
|
||
struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
|
||
|
||
remove_toshiba_proc_entries(dev);
|
||
|
||
if (dev->sysfs_created)
|
||
sysfs_remove_group(&dev->acpi_dev->dev.kobj,
|
||
&toshiba_attr_group);
|
||
|
||
if (dev->ntfy_supported) {
|
||
i8042_remove_filter(toshiba_acpi_i8042_filter);
|
||
cancel_work_sync(&dev->hotkey_work);
|
||
}
|
||
|
||
if (dev->hotkey_dev) {
|
||
input_unregister_device(dev->hotkey_dev);
|
||
sparse_keymap_free(dev->hotkey_dev);
|
||
}
|
||
|
||
if (dev->bt_rfk) {
|
||
rfkill_unregister(dev->bt_rfk);
|
||
rfkill_destroy(dev->bt_rfk);
|
||
}
|
||
|
||
if (dev->backlight_dev)
|
||
backlight_device_unregister(dev->backlight_dev);
|
||
|
||
if (dev->illumination_supported)
|
||
led_classdev_unregister(&dev->led_dev);
|
||
|
||
if (dev->kbd_led_registered)
|
||
led_classdev_unregister(&dev->kbd_led);
|
||
|
||
if (dev->eco_supported)
|
||
led_classdev_unregister(&dev->eco_led);
|
||
|
||
if (toshiba_acpi)
|
||
toshiba_acpi = NULL;
|
||
|
||
kfree(dev);
|
||
|
||
return 0;
|
||
}
|
||
|
||
static const char *find_hci_method(acpi_handle handle)
|
||
{
|
||
if (acpi_has_method(handle, "GHCI"))
|
||
return "GHCI";
|
||
|
||
if (acpi_has_method(handle, "SPFC"))
|
||
return "SPFC";
|
||
|
||
return NULL;
|
||
}
|
||
|
||
static int toshiba_acpi_add(struct acpi_device *acpi_dev)
|
||
{
|
||
struct toshiba_acpi_dev *dev;
|
||
const char *hci_method;
|
||
u32 dummy;
|
||
bool bt_present;
|
||
int ret = 0;
|
||
|
||
if (toshiba_acpi)
|
||
return -EBUSY;
|
||
|
||
pr_info("Toshiba Laptop ACPI Extras version %s\n",
|
||
TOSHIBA_ACPI_VERSION);
|
||
|
||
hci_method = find_hci_method(acpi_dev->handle);
|
||
if (!hci_method) {
|
||
pr_err("HCI interface not found\n");
|
||
return -ENODEV;
|
||
}
|
||
|
||
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
||
if (!dev)
|
||
return -ENOMEM;
|
||
dev->acpi_dev = acpi_dev;
|
||
dev->method_hci = hci_method;
|
||
acpi_dev->driver_data = dev;
|
||
dev_set_drvdata(&acpi_dev->dev, dev);
|
||
|
||
if (toshiba_acpi_setup_keyboard(dev))
|
||
pr_info("Unable to activate hotkeys\n");
|
||
|
||
mutex_init(&dev->mutex);
|
||
|
||
ret = toshiba_acpi_setup_backlight(dev);
|
||
if (ret)
|
||
goto error;
|
||
|
||
/* Register rfkill switch for Bluetooth */
|
||
if (hci_get_bt_present(dev, &bt_present) == HCI_SUCCESS && bt_present) {
|
||
dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth",
|
||
&acpi_dev->dev,
|
||
RFKILL_TYPE_BLUETOOTH,
|
||
&toshiba_rfk_ops,
|
||
dev);
|
||
if (!dev->bt_rfk) {
|
||
pr_err("unable to allocate rfkill device\n");
|
||
ret = -ENOMEM;
|
||
goto error;
|
||
}
|
||
|
||
ret = rfkill_register(dev->bt_rfk);
|
||
if (ret) {
|
||
pr_err("unable to register rfkill device\n");
|
||
rfkill_destroy(dev->bt_rfk);
|
||
goto error;
|
||
}
|
||
}
|
||
|
||
if (toshiba_illumination_available(dev)) {
|
||
dev->led_dev.name = "toshiba::illumination";
|
||
dev->led_dev.max_brightness = 1;
|
||
dev->led_dev.brightness_set = toshiba_illumination_set;
|
||
dev->led_dev.brightness_get = toshiba_illumination_get;
|
||
if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
|
||
dev->illumination_supported = 1;
|
||
}
|
||
|
||
if (toshiba_eco_mode_available(dev)) {
|
||
dev->eco_led.name = "toshiba::eco_mode";
|
||
dev->eco_led.max_brightness = 1;
|
||
dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
|
||
dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
|
||
if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
|
||
dev->eco_supported = 1;
|
||
}
|
||
|
||
ret = toshiba_kbd_illum_status_get(dev, &dummy);
|
||
if (!ret) {
|
||
dev->kbd_time = dummy >> HCI_MISC_SHIFT;
|
||
dev->kbd_mode = dummy & 0x07;
|
||
}
|
||
dev->kbd_illum_supported = !ret;
|
||
/*
|
||
* Only register the LED if KBD illumination is supported
|
||
* and the keyboard backlight operation mode is set to FN-Z
|
||
*/
|
||
if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
|
||
dev->kbd_led.name = "toshiba::kbd_backlight";
|
||
dev->kbd_led.max_brightness = 1;
|
||
dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
|
||
dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
|
||
if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
|
||
dev->kbd_led_registered = 1;
|
||
}
|
||
|
||
ret = toshiba_touchpad_get(dev, &dummy);
|
||
dev->touchpad_supported = !ret;
|
||
|
||
ret = toshiba_accelerometer_supported(dev);
|
||
dev->accelerometer_supported = !ret;
|
||
|
||
/* Determine whether or not BIOS supports fan and video interfaces */
|
||
|
||
ret = get_video_status(dev, &dummy);
|
||
dev->video_supported = !ret;
|
||
|
||
ret = get_fan_status(dev, &dummy);
|
||
dev->fan_supported = !ret;
|
||
|
||
ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
|
||
&toshiba_attr_group);
|
||
if (ret) {
|
||
dev->sysfs_created = 0;
|
||
goto error;
|
||
}
|
||
dev->sysfs_created = !ret;
|
||
|
||
create_toshiba_proc_entries(dev);
|
||
|
||
toshiba_acpi = dev;
|
||
|
||
return 0;
|
||
|
||
error:
|
||
toshiba_acpi_remove(acpi_dev);
|
||
return ret;
|
||
}
|
||
|
||
static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
|
||
{
|
||
struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
|
||
u32 hci_result, value;
|
||
int retries = 3;
|
||
int scancode;
|
||
|
||
if (event != 0x80)
|
||
return;
|
||
|
||
if (dev->info_supported) {
|
||
scancode = toshiba_acpi_query_hotkey(dev);
|
||
if (scancode < 0)
|
||
pr_err("Failed to query hotkey event\n");
|
||
else if (scancode != 0)
|
||
toshiba_acpi_report_hotkey(dev, scancode);
|
||
} else if (dev->system_event_supported) {
|
||
do {
|
||
hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
|
||
switch (hci_result) {
|
||
case HCI_SUCCESS:
|
||
toshiba_acpi_report_hotkey(dev, (int)value);
|
||
break;
|
||
case HCI_NOT_SUPPORTED:
|
||
/*
|
||
* This is a workaround for an unresolved
|
||
* issue on some machines where system events
|
||
* sporadically become disabled.
|
||
*/
|
||
hci_write1(dev, HCI_SYSTEM_EVENT, 1,
|
||
&hci_result);
|
||
pr_notice("Re-enabled hotkeys\n");
|
||
/* fall through */
|
||
default:
|
||
retries--;
|
||
break;
|
||
}
|
||
} while (retries && hci_result != HCI_EMPTY);
|
||
}
|
||
}
|
||
|
||
#ifdef CONFIG_PM_SLEEP
|
||
static int toshiba_acpi_suspend(struct device *device)
|
||
{
|
||
struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
|
||
u32 result;
|
||
|
||
if (dev->hotkey_dev)
|
||
hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result);
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int toshiba_acpi_resume(struct device *device)
|
||
{
|
||
struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
|
||
u32 result;
|
||
|
||
if (dev->hotkey_dev)
|
||
hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result);
|
||
|
||
return 0;
|
||
}
|
||
#endif
|
||
|
||
static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
|
||
toshiba_acpi_suspend, toshiba_acpi_resume);
|
||
|
||
static struct acpi_driver toshiba_acpi_driver = {
|
||
.name = "Toshiba ACPI driver",
|
||
.owner = THIS_MODULE,
|
||
.ids = toshiba_device_ids,
|
||
.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
|
||
.ops = {
|
||
.add = toshiba_acpi_add,
|
||
.remove = toshiba_acpi_remove,
|
||
.notify = toshiba_acpi_notify,
|
||
},
|
||
.drv.pm = &toshiba_acpi_pm,
|
||
};
|
||
|
||
static int __init toshiba_acpi_init(void)
|
||
{
|
||
int ret;
|
||
|
||
/*
|
||
* Machines with this WMI guid aren't supported due to bugs in
|
||
* their AML. This check relies on wmi initializing before
|
||
* toshiba_acpi to guarantee guids have been identified.
|
||
*/
|
||
if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
|
||
return -ENODEV;
|
||
|
||
toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
|
||
if (!toshiba_proc_dir) {
|
||
pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
|
||
return -ENODEV;
|
||
}
|
||
|
||
ret = acpi_bus_register_driver(&toshiba_acpi_driver);
|
||
if (ret) {
|
||
pr_err("Failed to register ACPI driver: %d\n", ret);
|
||
remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
static void __exit toshiba_acpi_exit(void)
|
||
{
|
||
acpi_bus_unregister_driver(&toshiba_acpi_driver);
|
||
if (toshiba_proc_dir)
|
||
remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
|
||
}
|
||
|
||
module_init(toshiba_acpi_init);
|
||
module_exit(toshiba_acpi_exit);
|