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asus-laptop: hotkeys via the generic input interface

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This patch is based on eeepc-laptop.c and the patchs
from Nicolas Trangez and Daniel Nascimento (mainly for the keymap).

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Corentin Chary 2009-01-20 16:17:43 +01:00 committed by Len Brown
parent 2a7dc0d8c6
commit 034ce90a8d
1 changed files with 154 additions and 1 deletions
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155
drivers/platform/x86/asus-laptop.c
View File

@ -46,6 +46,7 @@
#include <acpi/acpi_drivers.h>
#include <acpi/acpi_bus.h>
#include <asm/uaccess.h>
#include <linux/input.h>
#define ASUS_LAPTOP_VERSION "0.42"
@ -181,6 +182,8 @@ struct asus_hotk {
u8 light_level; //light sensor level
u8 light_switch; //light sensor switch value
u16 event_count[128]; //count for each event TODO make this better
struct input_dev *inputdev;
u16 *keycode_map;
};
/*
@ -250,6 +253,37 @@ ASUS_LED(rled, "record");
ASUS_LED(pled, "phone");
ASUS_LED(gled, "gaming");
struct key_entry {
char type;
u8 code;
u16 keycode;
};
enum { KE_KEY, KE_END };
static struct key_entry asus_keymap[] = {
{KE_KEY, 0x30, KEY_VOLUMEUP},
{KE_KEY, 0x31, KEY_VOLUMEDOWN},
{KE_KEY, 0x32, KEY_MUTE},
{KE_KEY, 0x33, KEY_SWITCHVIDEOMODE},
{KE_KEY, 0x34, KEY_SWITCHVIDEOMODE},
{KE_KEY, 0x40, KEY_PREVIOUSSONG},
{KE_KEY, 0x41, KEY_NEXTSONG},
{KE_KEY, 0x43, KEY_STOP},
{KE_KEY, 0x45, KEY_PLAYPAUSE},
{KE_KEY, 0x50, KEY_EMAIL},
{KE_KEY, 0x51, KEY_WWW},
{KE_KEY, 0x5C, BTN_EXTRA}, /* Performance */
{KE_KEY, 0x5D, KEY_WLAN},
{KE_KEY, 0x61, KEY_SWITCHVIDEOMODE},
{KE_KEY, 0x6B, BTN_TOUCH}, /* Lock Mouse */
{KE_KEY, 0x82, KEY_CAMERA},
{KE_KEY, 0x8A, KEY_TV},
{KE_KEY, 0x95, KEY_MEDIA},
{KE_KEY, 0x99, KEY_PHONE},
{KE_END, 0},
};
/*
* This function evaluates an ACPI method, given an int as parameter, the
* method is searched within the scope of the handle, can be NULL. The output
@ -720,8 +754,68 @@ static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
return store_status(buf, count, NULL, GPS_ON);
}
/*
* Hotkey functions
*/
static struct key_entry *asus_get_entry_by_scancode(int code)
{
struct key_entry *key;
for (key = asus_keymap; key->type != KE_END; key++)
if (code == key->code)
return key;
return NULL;
}
static struct key_entry *asus_get_entry_by_keycode(int code)
{
struct key_entry *key;
for (key = asus_keymap; key->type != KE_END; key++)
if (code == key->keycode && key->type == KE_KEY)
return key;
return NULL;
}
static int asus_getkeycode(struct input_dev *dev, int scancode, int *keycode)
{
struct key_entry *key = asus_get_entry_by_scancode(scancode);
if (key && key->type == KE_KEY) {
*keycode = key->keycode;
return 0;
}
return -EINVAL;
}
static int asus_setkeycode(struct input_dev *dev, int scancode, int keycode)
{
struct key_entry *key;
int old_keycode;
if (keycode < 0 || keycode > KEY_MAX)
return -EINVAL;
key = asus_get_entry_by_scancode(scancode);
if (key && key->type == KE_KEY) {
old_keycode = key->keycode;
key->keycode = keycode;
set_bit(keycode, dev->keybit);
if (!asus_get_entry_by_keycode(old_keycode))
clear_bit(old_keycode, dev->keybit);
return 0;
}
return -EINVAL;
}
static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
{
static struct key_entry *key;
/* TODO Find a better way to handle events count. */
if (!hotk)
return;
@ -742,7 +836,20 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
dev_name(&hotk->device->dev), event,
hotk->event_count[event % 128]++);
return;
if (hotk->inputdev) {
key = asus_get_entry_by_scancode(event);
if (!key)
return ;
switch (key->type) {
case KE_KEY:
input_report_key(hotk->inputdev, key->keycode, 1);
input_sync(hotk->inputdev);
input_report_key(hotk->inputdev, key->keycode, 0);
input_sync(hotk->inputdev);
break;
}
}
}
#define ASUS_CREATE_DEVICE_ATTR(_name) \
@ -960,6 +1067,38 @@ static int asus_hotk_get_info(void)
return AE_OK;
}
static int asus_input_init(void)
{
const struct key_entry *key;
int result;
hotk->inputdev = input_allocate_device();
if (!hotk->inputdev) {
printk(ASUS_INFO "Unable to allocate input device\n");
return 0;
}
hotk->inputdev->name = "Asus Laptop extra buttons";
hotk->inputdev->phys = ASUS_HOTK_FILE "/input0";
hotk->inputdev->id.bustype = BUS_HOST;
hotk->inputdev->getkeycode = asus_getkeycode;
hotk->inputdev->setkeycode = asus_setkeycode;
for (key = asus_keymap; key->type != KE_END; key++) {
switch (key->type) {
case KE_KEY:
set_bit(EV_KEY, hotk->inputdev->evbit);
set_bit(key->keycode, hotk->inputdev->keybit);
break;
}
}
result = input_register_device(hotk->inputdev);
if (result) {
printk(ASUS_INFO "Unable to register input device\n");
input_free_device(hotk->inputdev);
}
return result;
}
static int asus_hotk_check(void)
{
int result = 0;
@ -1092,10 +1231,17 @@ static void asus_led_exit(void)
ASUS_LED_UNREGISTER(gled);
}
static void asus_input_exit(void)
{
if (hotk->inputdev)
input_unregister_device(hotk->inputdev);
}
static void __exit asus_laptop_exit(void)
{
asus_backlight_exit();
asus_led_exit();
asus_input_exit();
acpi_bus_unregister_driver(&asus_hotk_driver);
sysfs_remove_group(&asuspf_device->dev.kobj, &asuspf_attribute_group);
@ -1217,6 +1363,10 @@ static int __init asus_laptop_init(void)
printk(ASUS_INFO "Brightness ignored, must be controlled by "
"ACPI video driver\n");
result = asus_input_init();
if (result)
goto fail_input;
result = asus_led_init(dev);
if (result)
goto fail_led;
@ -1256,6 +1406,9 @@ static int __init asus_laptop_init(void)
asus_led_exit();
fail_led:
asus_input_exit();
fail_input:
asus_backlight_exit();
fail_backlight: