mirror of https://gitee.com/openkylin/linux.git
asus-laptop: Add *_led_get() functions
Add support for getting led brightness directly from the hardware. Currently we don't need it, but it is needed to support keyboard backlight/led. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
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@ -246,12 +246,15 @@ static struct workqueue_struct *led_workqueue;
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#define ASUS_LED(object, ledname) \
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static void object##_led_set(struct led_classdev *led_cdev, \
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enum led_brightness value); \
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static enum led_brightness object##_led_get( \
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struct led_classdev *led_cdev); \
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static void object##_led_update(struct work_struct *ignored); \
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static int object##_led_wk; \
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static DECLARE_WORK(object##_led_work, object##_led_update); \
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static struct led_classdev object##_led = { \
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.name = "asus::" ledname, \
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.brightness_set = object##_led_set, \
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.brightness_get = object##_led_get, \
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}
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ASUS_LED(mled, "mail");
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@ -399,6 +402,11 @@ static void write_status(acpi_handle handle, int out, int mask)
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{ \
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int value = object##_led_wk; \
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write_status(object##_set_handle, value, (mask)); \
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} \
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static enum led_brightness object##_led_get( \
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struct led_classdev *led_cdev) \
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{ \
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return led_cdev->brightness; \
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}
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ASUS_LED_HANDLER(mled, MLED_ON);
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