Commit b644c955 authored by PaddyKP_Yao's avatar PaddyKP_Yao Committed by Hans de Goede
Browse files

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.

Signed-off-by: default avatarPaddyKP_Yao <PaddyKP_Yao@asus.com>
Link: https://lore.kernel.org/r/20220711115125.2072508-1-PaddyKP_Yao@asus.com


Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent aeb47cb1

drivers/platform/x86/Kconfig

+2 −0
Original line number Original line Diff line number Diff line
@@ -273,6 +273,8 @@ config ASUS_WMI 
	select INPUT_SPARSEKMAP

	select INPUT_SPARSEKMAP

	select LEDS_CLASS

	select LEDS_CLASS

	select NEW_LEDS

	select NEW_LEDS

	select LEDS_TRIGGERS

	select LEDS_TRIGGER_AUDIO

	select ACPI_PLATFORM_PROFILE

	select ACPI_PLATFORM_PROFILE

	help

	help

	  Say Y here if you have a WMI aware Asus laptop (like Eee PCs or new

	  Say Y here if you have a WMI aware Asus laptop (like Eee PCs or new

drivers/platform/x86/asus-wmi.c

+25 −0
Original line number Original line Diff line number Diff line
@@ -208,6 +208,7 @@ struct asus_wmi { 
	int kbd_led_wk;

	int kbd_led_wk;

	struct led_classdev lightbar_led;

	struct led_classdev lightbar_led;

	int lightbar_led_wk;

	int lightbar_led_wk;

	struct led_classdev micmute_led;

	struct workqueue_struct *led_workqueue;

	struct workqueue_struct *led_workqueue;

	struct work_struct tpd_led_work;

	struct work_struct tpd_led_work;

	struct work_struct wlan_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;

	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)

static void asus_wmi_led_exit(struct asus_wmi *asus)

{

{

	led_classdev_unregister(&asus->kbd_led);

	led_classdev_unregister(&asus->kbd_led);

	led_classdev_unregister(&asus->tpd_led);

	led_classdev_unregister(&asus->tpd_led);

	led_classdev_unregister(&asus->wlan_led);

	led_classdev_unregister(&asus->wlan_led);

	led_classdev_unregister(&asus->lightbar_led);

	led_classdev_unregister(&asus->lightbar_led);

	led_classdev_unregister(&asus->micmute_led);





	if (asus->led_workqueue)

	if (asus->led_workqueue)

		destroy_workqueue(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);

					   &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:

error:

	if (rv)

	if (rv)

		asus_wmi_led_exit(asus);

		asus_wmi_led_exit(asus);

include/linux/platform_data/x86/asus-wmi.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -49,6 +49,7 @@ 
#define ASUS_WMI_DEVID_LED4		0x00020014

#define ASUS_WMI_DEVID_LED4		0x00020014

#define ASUS_WMI_DEVID_LED5		0x00020015

#define ASUS_WMI_DEVID_LED5		0x00020015

#define ASUS_WMI_DEVID_LED6		0x00020016

#define ASUS_WMI_DEVID_LED6		0x00020016

#define ASUS_WMI_DEVID_MICMUTE_LED		0x00040017





/* Backlight and Brightness */

/* Backlight and Brightness */

#define ASUS_WMI_DEVID_ALS_ENABLE	0x00050001 /* Ambient Light Sensor */

#define ASUS_WMI_DEVID_ALS_ENABLE	0x00050001 /* Ambient Light Sensor */