mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-01 22:54:01 +00:00
platform/x86: dell-laptop: Register ctl-led for speaker-mute
Some platforms have the speaker-mute led and current driver doesn't control it. If the platform support the control of speaker-mute led, register it Signed-off-by: Koba Ko <koba.ko@canonical.com> Link: https://lore.kernel.org/r/20230308062414.1048913-1-koba.ko@canonical.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
parent
39e2ba648a
commit
3ed0b880b7
2 changed files with 44 additions and 0 deletions
|
@ -97,6 +97,7 @@ static struct rfkill *bluetooth_rfkill;
|
|||
static struct rfkill *wwan_rfkill;
|
||||
static bool force_rfkill;
|
||||
static bool micmute_led_registered;
|
||||
static bool mute_led_registered;
|
||||
|
||||
module_param(force_rfkill, bool, 0444);
|
||||
MODULE_PARM_DESC(force_rfkill, "enable rfkill on non whitelisted models");
|
||||
|
@ -2177,6 +2178,34 @@ static struct led_classdev micmute_led_cdev = {
|
|||
.default_trigger = "audio-micmute",
|
||||
};
|
||||
|
||||
static int mute_led_set(struct led_classdev *led_cdev,
|
||||
enum led_brightness brightness)
|
||||
{
|
||||
struct calling_interface_buffer buffer;
|
||||
struct calling_interface_token *token;
|
||||
int state = brightness != LED_OFF;
|
||||
|
||||
if (state == 0)
|
||||
token = dell_smbios_find_token(GLOBAL_MUTE_DISABLE);
|
||||
else
|
||||
token = dell_smbios_find_token(GLOBAL_MUTE_ENABLE);
|
||||
|
||||
if (!token)
|
||||
return -ENODEV;
|
||||
|
||||
dell_fill_request(&buffer, token->location, token->value, 0, 0);
|
||||
dell_send_request(&buffer, CLASS_TOKEN_WRITE, SELECT_TOKEN_STD);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct led_classdev mute_led_cdev = {
|
||||
.name = "platform::mute",
|
||||
.max_brightness = 1,
|
||||
.brightness_set_blocking = mute_led_set,
|
||||
.default_trigger = "audio-mute",
|
||||
};
|
||||
|
||||
static int __init dell_init(void)
|
||||
{
|
||||
struct calling_interface_token *token;
|
||||
|
@ -2230,6 +2259,15 @@ static int __init dell_init(void)
|
|||
micmute_led_registered = true;
|
||||
}
|
||||
|
||||
if (dell_smbios_find_token(GLOBAL_MUTE_DISABLE) &&
|
||||
dell_smbios_find_token(GLOBAL_MUTE_ENABLE)) {
|
||||
mute_led_cdev.brightness = ledtrig_audio_get(LED_AUDIO_MUTE);
|
||||
ret = led_classdev_register(&platform_device->dev, &mute_led_cdev);
|
||||
if (ret < 0)
|
||||
goto fail_backlight;
|
||||
mute_led_registered = true;
|
||||
}
|
||||
|
||||
if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
|
||||
return 0;
|
||||
|
||||
|
@ -2277,6 +2315,8 @@ static int __init dell_init(void)
|
|||
fail_backlight:
|
||||
if (micmute_led_registered)
|
||||
led_classdev_unregister(&micmute_led_cdev);
|
||||
if (mute_led_registered)
|
||||
led_classdev_unregister(&mute_led_cdev);
|
||||
fail_led:
|
||||
dell_cleanup_rfkill();
|
||||
fail_rfkill:
|
||||
|
@ -2299,6 +2339,8 @@ static void __exit dell_exit(void)
|
|||
backlight_device_unregister(dell_backlight_device);
|
||||
if (micmute_led_registered)
|
||||
led_classdev_unregister(&micmute_led_cdev);
|
||||
if (mute_led_registered)
|
||||
led_classdev_unregister(&mute_led_cdev);
|
||||
dell_cleanup_rfkill();
|
||||
if (platform_device) {
|
||||
platform_device_unregister(platform_device);
|
||||
|
|
|
@ -34,6 +34,8 @@
|
|||
#define KBD_LED_AUTO_100_TOKEN 0x02F6
|
||||
#define GLOBAL_MIC_MUTE_ENABLE 0x0364
|
||||
#define GLOBAL_MIC_MUTE_DISABLE 0x0365
|
||||
#define GLOBAL_MUTE_ENABLE 0x058C
|
||||
#define GLOBAL_MUTE_DISABLE 0x058D
|
||||
|
||||
struct notifier_block;
|
||||
|
||||
|
|
Loading…
Reference in a new issue