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Input: i8042 - add Dritek keyboard extension quirk

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Some Wistron based laptops need us to explicitly enable the 'Dritek
keyboard extension' to make their extra keys start generating scancodes.
Originally, this was just confined to older laptops, but a few Acer
laptops have turned up in 2007 that also need this again.

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Carlos Corbacho 2008-01-21 01:04:40 -05:00 committed by Dmitry Torokhov
parent 93e9012f40
commit 8987fec0de
2 changed files with 63 additions and 0 deletions
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49
drivers/input/serio/i8042-x86ia64io.h
View File

@ -277,6 +277,50 @@ static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
#endif
#ifdef CONFIG_X86
#include <linux/dmi.h>
/*
* Some Wistron based laptops need us to explicitly enable the 'Dritek
* keyboard extension' to make their extra keys start generating scancodes.
* Originally, this was just confined to older laptops, but a few Acer laptops
* have turned up in 2007 that also need this again.
*/
static struct dmi_system_id __initdata i8042_dmi_dritek_table[] = {
{
.ident = "Acer Aspire 5630",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5630"),
},
},
{
.ident = "Acer Aspire 5650",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5650"),
},
},
{
.ident = "Acer Aspire 5680",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5680"),
},
},
{
.ident = "Acer TravelMate 2490",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2490"),
},
},
{ }
};
#endif /* CONFIG_X86 */
#ifdef CONFIG_PNP
#include <linux/pnp.h>
@ -520,6 +564,11 @@ static int __init i8042_platform_init(void)
i8042_nomux = 1;
#endif
#ifdef CONFIG_X86
if (dmi_check_system(i8042_dmi_dritek_table))
i8042_dritek = 1;
#endif /* CONFIG_X86 */
return retval;
}

14
drivers/input/serio/i8042.c
View File

@ -63,6 +63,12 @@ static unsigned int i8042_blink_frequency = 500;
module_param_named(panicblink, i8042_blink_frequency, uint, 0600);
MODULE_PARM_DESC(panicblink, "Frequency with which keyboard LEDs should blink when kernel panics");
#ifdef CONFIG_X86
static unsigned int i8042_dritek;
module_param_named(dritek, i8042_dritek, bool, 0);
MODULE_PARM_DESC(dritek, "Force enable the Dritek keyboard extension");
#endif
#ifdef CONFIG_PNP
static int i8042_nopnp;
module_param_named(nopnp, i8042_nopnp, bool, 0);
@ -1145,6 +1151,7 @@ static int __devinit i8042_setup_kbd(void)
static int __devinit i8042_probe(struct platform_device *dev)
{
int error;
char param;
error = i8042_controller_selftest();
if (error)
@ -1166,6 +1173,13 @@ static int __devinit i8042_probe(struct platform_device *dev)
goto out_fail;
}
if (i8042_dritek) {
param = 0x90;
error = i8042_command(&param, 0x1059);
if (error)
goto out_fail;
}
/*
* Ok, everything is ready, let's register all serio ports
*/