Merge "Add support for controlling recovery brightness at exynos-compatible sysfs path" (1683a95f) · Commits · e / os / android_bootable_recovery

recovery_ui/ui.cpp

+15 −2

Original line number	Diff line number	Diff line
		@@ -48,6 +48,10 @@ constexpr const char* MAX_BRIGHTNESS_FILE = "/sys/class/leds/lcd-backlight/max_b
		constexpr const char* BRIGHTNESS_FILE_SDM = "/sys/class/backlight/panel0-backlight/brightness";
		constexpr const char* MAX_BRIGHTNESS_FILE_SDM =
		"/sys/class/backlight/panel0-backlight/max_brightness";
		constexpr const char* BRIGHTNESS_FILE_PWM =
		"/sys/class/backlight/pwm-backlight.0/brightness";
		constexpr const char* MAX_BRIGHTNESS_FILE_PWM =
		"/sys/class/backlight/pwm-backlight.0/max_brightness";

		constexpr int kDefaultTouchLowThreshold = 50;
		constexpr int kDefaultTouchHighThreshold = 90;
		@@ -106,10 +110,19 @@ bool RecoveryUI::InitScreensaver() {
		return false;
		}
		if (access(brightness_file_.c_str(), R_OK \| W_OK)) {
		if (!access(BRIGHTNESS_FILE_SDM, R_OK \| W_OK)) {
		brightness_file_ = BRIGHTNESS_FILE_SDM;
		} else {
		brightness_file_ = BRIGHTNESS_FILE_PWM;
		}
		}

		if (access(max_brightness_file_.c_str(), R_OK)) {
		if (!access(MAX_BRIGHTNESS_FILE_SDM, R_OK)) {
		max_brightness_file_ = MAX_BRIGHTNESS_FILE_SDM;
		} else {
		max_brightness_file_ = MAX_BRIGHTNESS_FILE_PWM;
		}
		}
		// Set the initial brightness level based on the max brightness. Note that reading the initial
		// value from BRIGHTNESS_FILE doesn't give the actual brightness value (bullhead, sailfish), so