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@xxxxxxxx>
---
V1 -> V2: fix typo for 'present' and remove unnecessary pr_info() log
drivers/platform/x86/Kconfig | 2 ++
drivers/platform/x86/asus-wmi.c | 25 ++++++++++++++++++++++
include/linux/platform_data/x86/asus-wmi.h | 1 +
3 files changed, 28 insertions(+)
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index f915cf67aa26..74769050b770 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -274,6 +274,8 @@ 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
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index e14fb5fa7324..40c0e00a4b71 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -191,6 +191,7 @@ 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;
@@ -906,12 +907,23 @@ 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);
@@ -983,6 +995,19 @@ 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);
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index 17dc5cb6f3f2..38ee75874d11 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -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 */
--
2.34.1
