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platform/x86: asus-wmi: Add mic-mute LED classdev support

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In some new ASUS devices, hotkey Fn+F13 is used for mic mute. If mic-mute
LED is present by checking WMI ASUS_WMI_DEVID_MICMUTE_LED, we will add a
mic-mute LED classdev, asus::micmute, in the asus-wmi driver to control
it. The binding of mic-mute LED controls will be swithched with LED
trigger.

Signed-off-by: PaddyKP_Yao <PaddyKP_Yao@asus.com>
Link: https://lore.kernel.org/r/20220711115125.2072508-1-PaddyKP_Yao@asus.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
PaddyKP_Yao 2022-07-11 19:51:25 +08:00 committed by Hans de Goede
parent aeb47cb10a
commit b644c95598
3 changed files with 28 additions and 0 deletions
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2
drivers/platform/x86/Kconfig
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@ -273,6 +273,8 @@ config ASUS_WMI
select INPUT_SPARSEKMAP
select LEDS_CLASS
select NEW_LEDS
select LEDS_TRIGGERS
select LEDS_TRIGGER_AUDIO
select ACPI_PLATFORM_PROFILE
help
Say Y here if you have a WMI aware Asus laptop (like Eee PCs or new

25
drivers/platform/x86/asus-wmi.c
View File

@ -208,6 +208,7 @@ struct asus_wmi {
int kbd_led_wk;
struct led_classdev lightbar_led;
int lightbar_led_wk;
struct led_classdev micmute_led;
struct workqueue_struct *led_workqueue;
struct work_struct tpd_led_work;
struct work_struct wlan_led_work;
@ -1028,12 +1029,23 @@ static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev)
return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
}
static int micmute_led_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
int state = brightness != LED_OFF;
int err;
err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
return err < 0 ? err : 0;
}
static void asus_wmi_led_exit(struct asus_wmi *asus)
{
led_classdev_unregister(&asus->kbd_led);
led_classdev_unregister(&asus->tpd_led);
led_classdev_unregister(&asus->wlan_led);
led_classdev_unregister(&asus->lightbar_led);
led_classdev_unregister(&asus->micmute_led);
if (asus->led_workqueue)
destroy_workqueue(asus->led_workqueue);
@ -1105,6 +1117,19 @@ static int asus_wmi_led_init(struct asus_wmi *asus)
&asus->lightbar_led);
}
if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
asus->micmute_led.name = "asus::micmute";
asus->micmute_led.max_brightness = 1;
asus->micmute_led.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
asus->micmute_led.brightness_set_blocking = micmute_led_set;
asus->micmute_led.default_trigger = "audio-micmute";
rv = led_classdev_register(&asus->platform_device->dev,
&asus->micmute_led);
if (rv)
goto error;
}
error:
if (rv)
asus_wmi_led_exit(asus);

1
include/linux/platform_data/x86/asus-wmi.h
View File

@ -49,6 +49,7 @@
#define ASUS_WMI_DEVID_LED4 0x00020014
#define ASUS_WMI_DEVID_LED5 0x00020015
#define ASUS_WMI_DEVID_LED6 0x00020016
#define ASUS_WMI_DEVID_MICMUTE_LED 0x00040017
/* Backlight and Brightness */
#define ASUS_WMI_DEVID_ALS_ENABLE 0x00050001 /* Ambient Light Sensor */