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Input: wistron - add support for Acer Aspire 1500 notebooks 

Also fix a potential issue with some notebooks:

The current code assumes the response to bios_wifi_get_default_setting is
either 1 (disabled) or 3 (enabled), or wifi isn't supported.  The BIOS
response appears to be a bit field w/ 0x1 indicating hardware presence, 0x2
indicating actiation status, and the other 6 bits being unknown/reserved --
with the patch, these 6 bits are ignored.

Signed-off-by: Bernhard Rosenkraenzer <bero@arklinux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Bernhard Rosenkraenzer 2005-11-20 00:50:37 -05:00 committed by Dmitry Torokhov
parent e9fb028ea2
commit 84b256a663
1 changed files with 59 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

79
drivers/input/misc/wistron_btns.c
View File

@ -1,6 +1,7 @@
/*
* Wistron laptop button driver
* Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
* Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
*
* You can redistribute and/or modify this program under the terms of the
* GNU General Public License version 2 as published by the Free Software
@ -40,6 +41,10 @@
#error "POLL_FREQUENCY too high"
#endif
/* BIOS subsystem IDs */
#define WIFI 0x35
#define BLUETOOTH 0x34
MODULE_AUTHOR("Miloslav Trmac <mitr@volny.cz>");
MODULE_DESCRIPTION("Wistron laptop button driver");
MODULE_LICENSE("GPL v2");
@ -197,29 +202,29 @@ static u8 __init bios_get_cmos_address(void)
return regs.ecx;
}
static u16 __init bios_wifi_get_default_setting(void)
static u16 __init bios_get_default_setting(u8 subsys)
{
struct regs regs;
memset(&regs, 0, sizeof (regs));
regs.eax = 0x9610;
regs.ebx = 0x0235;
regs.ebx = 0x0200 | subsys;
call_bios(&regs);
return regs.eax;
}
static void bios_wifi_set_state(int enable)
static void bios_set_state(u8 subsys, int enable)
{
struct regs regs;
memset(&regs, 0, sizeof (regs));
regs.eax = 0x9610;
regs.ebx = enable ? 0x0135 : 0x0035;
regs.ebx = (enable ? 0x0100 : 0x0000) | subsys;
call_bios(&regs);
}
/* Hardware database */
/* Hardware database */
struct key_entry {
char type; /* See KE_* below */
@ -227,10 +232,11 @@ struct key_entry {
unsigned keycode; /* For KE_KEY */
};
enum { KE_END, KE_KEY, KE_WIFI };
enum { KE_END, KE_KEY, KE_WIFI, KE_BLUETOOTH };
static const struct key_entry *keymap; /* = NULL; Current key map */
static int have_wifi;
static int have_bluetooth;
static int __init dmi_matched(struct dmi_system_id *dmi)
{
@ -241,6 +247,9 @@ static int __init dmi_matched(struct dmi_system_id *dmi)
if (key->type == KE_WIFI) {
have_wifi = 1;
break;
} else if (key->type == KE_BLUETOOTH) {
have_bluetooth = 1;
break;
}
}
return 1;
@ -273,6 +282,16 @@ static struct key_entry keymap_wistron_ms2141[] = {
{ KE_END, 0 }
};
static struct key_entry keymap_acer_aspire_1500[] = {
{ KE_KEY, 0x11, KEY_PROG1 },
{ KE_KEY, 0x12, KEY_PROG2 },
{ KE_WIFI, 0x30, 0 },
{ KE_KEY, 0x31, KEY_MAIL },
{ KE_KEY, 0x36, KEY_WWW },
{ KE_BLUETOOTH, 0x44, 0 },
{ KE_END, 0 }
};
/*
* If your machine is not here (which is currently rather likely), please send
* a list of buttons and their key codes (reported when loading this module
@ -288,6 +307,15 @@ static struct dmi_system_id dmi_ids[] = {
},
.driver_data = keymap_fs_amilo_pro_v2000
},
{
.callback = dmi_matched,
.ident = "Acer Aspire 1500",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1500"),
},
.driver_data = keymap_acer_aspire_1500
},
{ 0, }
};
@ -344,6 +372,7 @@ static void report_key(unsigned keycode)
/* Driver core */
static int wifi_enabled;
static int bluetooth_enabled;
static void poll_bios(unsigned long);
@ -363,7 +392,14 @@ static void handle_key(u8 code)
case KE_WIFI:
if (have_wifi) {
wifi_enabled = !wifi_enabled;
bios_wifi_set_state(wifi_enabled);
bios_set_state(WIFI, wifi_enabled);
}
break;
case KE_BLUETOOTH:
if (have_bluetooth) {
bluetooth_enabled = !bluetooth_enabled;
bios_set_state(BLUETOOTH, bluetooth_enabled);
}
break;
@ -407,21 +443,24 @@ static int __init wb_module_init(void)
bios_attach();
cmos_address = bios_get_cmos_address();
if (have_wifi) {
switch (bios_wifi_get_default_setting()) {
case 0x01:
wifi_enabled = 0;
break;
case 0x03:
wifi_enabled = 1;
break;
default:
u16 wifi = bios_get_default_setting(WIFI);
if (wifi & 1)
wifi_enabled = (wifi & 2) ? 1 : 0;
else
have_wifi = 0;
break;
}
if (have_wifi)
bios_wifi_set_state(wifi_enabled);
bios_set_state(WIFI, wifi_enabled);
}
if (have_bluetooth) {
u16 bt = bios_get_default_setting(BLUETOOTH);
if (bt & 1)
bluetooth_enabled = (bt & 2) ? 1 : 0;
else
have_bluetooth = 0;
if (have_bluetooth)
bios_set_state(BLUETOOTH, bluetooth_enabled);
}
setup_input_dev();