diff options
| -rw-r--r-- | hw/display/display.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/hw/display/display.c b/hw/display/display.c index 71e7260..2398fff 100644 --- a/hw/display/display.c +++ b/hw/display/display.c @@ -30,6 +30,10 @@ #define BACKLIGHT_PATH "/sys/class/backlight/emulator" #endif +#ifndef LCD_PATH +#define LCD_PATH "/sys/class/lcd/emulator" +#endif + static int display_get_max_brightness(int *val) { static int max = -1; @@ -91,6 +95,32 @@ static int display_set_brightness(int brightness) return 0; } +static int display_get_state(enum display_state *state) +{ + int r, v; + + r = sys_get_int(LCD_PATH"/lcd_power", &v); + if (r < 0) { + _E("fail to get state (errno:%d)", r); + return r; + } + + //remap LCD state + switch (v) { + case 0: + *state = DISPLAY_ON; + break; + case 4: + *state = DISPLAY_OFF; + break; + default: + *state = -EINVAL; + break; + } + + return 0; +} + static int display_open(struct hw_info *info, const char *id, struct hw_common **common) { @@ -107,6 +137,7 @@ static int display_open(struct hw_info *info, display_dev->get_max_brightness = display_get_max_brightness; display_dev->get_brightness = display_get_brightness; display_dev->set_brightness = display_set_brightness; + display_dev->get_state = display_get_state; *common = (struct hw_common *)display_dev; return 0; |