diff options
author | Koba Ko <koba.ko@canonical.com> | 2023-03-08 09:24:14 +0300 |
---|---|---|
committer | Hans de Goede <hdegoede@redhat.com> | 2023-03-16 16:51:07 +0300 |
commit | 3ed0b880b71489d59f89b0bc1323ad34a136cca0 (patch) | |
tree | c44a720c80747e59c2832ce0a3156e65b04b92ae /drivers/platform/x86/dell | |
parent | 39e2ba648a6ee4519a5f0aa4cb995f8c97c5db6f (diff) | |
download | linux-3ed0b880b71489d59f89b0bc1323ad34a136cca0.tar.xz |
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>
Diffstat (limited to 'drivers/platform/x86/dell')
-rw-r--r-- | drivers/platform/x86/dell/dell-laptop.c | 42 | ||||
-rw-r--r-- | drivers/platform/x86/dell/dell-smbios.h | 2 |
2 files changed, 44 insertions, 0 deletions
diff --git a/drivers/platform/x86/dell/dell-laptop.c b/drivers/platform/x86/dell/dell-laptop.c index e92c3ad06d69..6586438356de 100644 --- a/drivers/platform/x86/dell/dell-laptop.c +++ b/drivers/platform/x86/dell/dell-laptop.c @@ -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 @@ fail_get_brightness: 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); diff --git a/drivers/platform/x86/dell/dell-smbios.h b/drivers/platform/x86/dell/dell-smbios.h index 75fa8ea0476d..eb341bf000c6 100644 --- a/drivers/platform/x86/dell/dell-smbios.h +++ b/drivers/platform/x86/dell/dell-smbios.h @@ -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; |