From f73bc576b86c1276cfc1dbc230f622af4feb852d Mon Sep 17 00:00:00 2001 From: HuiWang Date: Wed, 31 Jul 2013 10:48:36 +0800 Subject: BackLight: Add support for button backlight. Add function call to let framework layer could enable/disable the button backlight. Change-Id: I470ebb8953c5d3fdb72118dbaf06788c2079213e --- liblight/lights.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'liblight') diff --git a/liblight/lights.c b/liblight/lights.c index eb71b742..ccfbe102 100644 --- a/liblight/lights.c +++ b/liblight/lights.c @@ -51,6 +51,9 @@ char const*const BLUE_LED_FILE char const*const LCD_FILE = "/sys/class/leds/lcd-backlight/brightness"; +char const*const BUTTON_FILE + = "/sys/class/leds/button-backlight/brightness"; + char const*const RED_BLINK_FILE = "/sys/class/leds/red/blink"; @@ -209,6 +212,16 @@ set_light_attention(struct light_device_t* dev, return 0; } +static int +set_light_buttons(struct light_device_t* dev, + struct light_state_t const* state) +{ + int err = 0; + pthread_mutex_lock(&g_lock); + err = write_int(BUTTON_FILE, state->color & 0xFF); + pthread_mutex_unlock(&g_lock); + return err; +} /** Close the lights device */ static int @@ -238,6 +251,8 @@ static int open_lights(const struct hw_module_t* module, char const* name, set_light = set_light_backlight; else if (0 == strcmp(LIGHT_ID_NOTIFICATIONS, name)) set_light = set_light_notifications; + else if (0 == strcmp(LIGHT_ID_BUTTONS, name)) + set_light = set_light_buttons; else if (0 == strcmp(LIGHT_ID_ATTENTION, name)) set_light = set_light_attention; else -- cgit v1.2.3