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

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.

PaddyKP_Yao committed 4 years ago

Commit b644c951 parent aeb47cb3 files · +28 −0Browse files

Unified · Split

3 files

drivers/platform/x86/Kconfig +2 −0
drivers/platform/x86/asus-wmi.c +25 −0
include/linux/platform_data/x86/asus-wmi.h +1 −0

drivers/platform/x86/Kconfig+2−0

 	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

drivers/platform/x86/asus-wmi.c+25−0

@@ -208,6 +208,7 @@ struct asus_wmi { · 207 unmodified lines
208	int kbd_led_wk;	208	int kbd_led_wk;
209	struct led_classdev lightbar_led;	209	struct led_classdev lightbar_led;
210	int lightbar_led_wk;	210	int lightbar_led_wk;
		211	struct led_classdev micmute_led;
211	struct workqueue_struct *led_workqueue;	212	struct workqueue_struct *led_workqueue;
212	struct work_struct tpd_led_work;	213	struct work_struct tpd_led_work;
213	struct work_struct wlan_led_work;	214	struct work_struct wlan_led_work;
@@ -1028,12 +1029,23 @@ static enum led_brightness lightbar_led_get(struct led_classdev *led_cdev) · 814 unmodified lines
1028	return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;	1029	return result & ASUS_WMI_DSTS_LIGHTBAR_MASK;
1029	}	1030	}
1030		1031
		1032	static int micmute_led_set(struct led_classdev *led_cdev,
		1033	enum led_brightness brightness)
		1034	{
		1035	int state = brightness != LED_OFF;
		1036	int err;
		1037
		1038	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MICMUTE_LED, state, NULL);
		1039	return err < 0 ? err : 0;
		1040	}
		1041
1031	static void asus_wmi_led_exit(struct asus_wmi *asus)	1042	static void asus_wmi_led_exit(struct asus_wmi *asus)
1032	{	1043	{
1033	led_classdev_unregister(&asus->kbd_led);	1044	led_classdev_unregister(&asus->kbd_led);
1034	led_classdev_unregister(&asus->tpd_led);	1045	led_classdev_unregister(&asus->tpd_led);
1035	led_classdev_unregister(&asus->wlan_led);	1046	led_classdev_unregister(&asus->wlan_led);
1036	led_classdev_unregister(&asus->lightbar_led);	1047	led_classdev_unregister(&asus->lightbar_led);
		1048	led_classdev_unregister(&asus->micmute_led);
1037		1049
1038	if (asus->led_workqueue)	1050	if (asus->led_workqueue)
1039	destroy_workqueue(asus->led_workqueue);	1051	destroy_workqueue(asus->led_workqueue);
@@ -1105,6 +1117,19 @@ static int asus_wmi_led_init(struct asus_wmi *asus) · 65 unmodified lines
1105	&asus->lightbar_led);	1117	&asus->lightbar_led);
1106	}	1118	}
1107		1119
		1120	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MICMUTE_LED)) {
		1121	asus->micmute_led.name = "asus::micmute";
		1122	asus->micmute_led.max_brightness = 1;
		1123	asus->micmute_led.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE);
		1124	asus->micmute_led.brightness_set_blocking = micmute_led_set;
		1125	asus->micmute_led.default_trigger = "audio-micmute";
		1126
		1127	rv = led_classdev_register(&asus->platform_device->dev,
		1128	&asus->micmute_led);
		1129	if (rv)
		1130	goto error;
		1131	}
		1132
1108	error:	1133	error:
1109	if (rv)	1134	if (rv)
1110	asus_wmi_led_exit(asus);	1135	asus_wmi_led_exit(asus);

include/linux/platform_data/x86/asus-wmi.h+1−0

@@ -49,6 +49,7 @@ · 48 unmodified lines
49	#define ASUS_WMI_DEVID_LED4 0x00020014	49	#define ASUS_WMI_DEVID_LED4 0x00020014
50	#define ASUS_WMI_DEVID_LED5 0x00020015	50	#define ASUS_WMI_DEVID_LED5 0x00020015
51	#define ASUS_WMI_DEVID_LED6 0x00020016	51	#define ASUS_WMI_DEVID_LED6 0x00020016
		52	#define ASUS_WMI_DEVID_MICMUTE_LED 0x00040017
52		53
53	/* Backlight and Brightness */	54	/* Backlight and Brightness */
54	#define ASUS_WMI_DEVID_ALS_ENABLE 0x00050001 /* Ambient Light Sensor */	55	#define ASUS_WMI_DEVID_ALS_ENABLE 0x00050001 /* Ambient Light Sensor */