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| author | Corentin Chary <corentincj@iksaif.net> | 2010-01-25 22:53:21 +0100 |
|---|---|---|
| committer | Corentin Chary <corentincj@iksaif.net> | 2010-02-28 19:35:12 +0100 |
| commit | a539df5e1548751e352990c518e88af50e6111b8 (patch) | |
| tree | 8615ab544dfcce6b4744624addc45c219109ff74 /drivers/platform | |
| parent | 7f607d71065b6b089f59b78b54144c3fb93ad629 (diff) | |
| download | kernel_samsung_smdk4412-a539df5e1548751e352990c518e88af50e6111b8.zip kernel_samsung_smdk4412-a539df5e1548751e352990c518e88af50e6111b8.tar.gz kernel_samsung_smdk4412-a539df5e1548751e352990c518e88af50e6111b8.tar.bz2 | |
asus-laptop: add backlight changes notifications
We don't want to send KEY_BRIGHTNESSDOWN or KEY_BRIGHTNESSUP
because it would be a lie to tell userspace that we want
to change the brightness while it's actually done by the
firmware.
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/asus-laptop.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 4f3c467..516add3 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -93,8 +93,10 @@ MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot " /* * Some events we use, same for all Asus */ -#define ATKD_BR_UP 0x10 -#define ATKD_BR_DOWN 0x20 +#define ATKD_BR_UP 0x10 // (event & ~ATKD_BR_UP) = brightness level +#define ATKD_BR_DOWN 0x20 // (event & ~ATKD_BR_DOWN) = britghness level +#define ATKD_BR_MIN ATKD_BR_UP +#define ATKD_BR_MAX (ATKD_BR_DOWN | 0xF) // 0x2f #define ATKD_LCD_ON 0x33 #define ATKD_LCD_OFF 0x34 @@ -245,11 +247,13 @@ struct asus_laptop { }; static const struct key_entry asus_keymap[] = { + /* Lenovo SL Specific keycodes */ {KE_KEY, 0x02, { KEY_SCREENLOCK } }, {KE_KEY, 0x05, { KEY_WLAN } }, {KE_KEY, 0x08, { KEY_F13 } }, {KE_KEY, 0x17, { KEY_ZOOM } }, {KE_KEY, 0x1f, { KEY_BATTERY } }, + /* End of Lenovo SL Specific keycodes */ {KE_KEY, 0x30, { KEY_VOLUMEUP } }, {KE_KEY, 0x31, { KEY_VOLUMEDOWN } }, {KE_KEY, 0x32, { KEY_MUTE } }, @@ -626,6 +630,16 @@ static struct backlight_ops asusbl_ops = { .update_status = update_bl_status, }; +static int asus_backlight_notify(struct asus_laptop *asus) +{ + struct backlight_device *bd = asus->backlight_device; + int old = bd->props.brightness; + + backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); + + return old; +} + static int asus_backlight_init(struct asus_laptop *asus) { struct backlight_device *bd; @@ -656,6 +670,7 @@ static void asus_backlight_exit(struct asus_laptop *asus) { if (asus->backlight_device) backlight_device_unregister(asus->backlight_device); + asus->backlight_device = NULL; } /* @@ -1121,6 +1136,16 @@ static void asus_acpi_notify(struct acpi_device *device, u32 event) dev_name(&asus->device->dev), event, count); + /* Brightness events are special */ + if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) { + + /* Ignore them completely if the acpi video driver is used */ + if (asus->backlight_device != NULL) { + /* Update the backlight device. */ + asus_backlight_notify(asus); + } + return ; + } asus_input_notify(asus, event); } |