diff options
Diffstat (limited to 'firmware/target/arm/s5l8700/yps3/backlight-yps3.c')
| -rw-r--r-- | firmware/target/arm/s5l8700/yps3/backlight-yps3.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/firmware/target/arm/s5l8700/yps3/backlight-yps3.c b/firmware/target/arm/s5l8700/yps3/backlight-yps3.c index 0a9cf3cc9a..7fda82a29c 100644 --- a/firmware/target/arm/s5l8700/yps3/backlight-yps3.c +++ b/firmware/target/arm/s5l8700/yps3/backlight-yps3.c @@ -30,6 +30,9 @@ The PWM duty cycle depends exponentially on the configured brightness level. This makes the brightness curve more linear to the human eye. + + The button LEDs are all activated at the same time (even though there + are three individually controllable groups: menu/back, cursor, middle). */ void _backlight_set_brightness(int brightness) @@ -52,8 +55,24 @@ void _backlight_off(void) _backlight_set_brightness(MIN_BRIGHTNESS_SETTING); } +void _buttonlight_on(void) +{ + PDAT3 |= (3 << 2); + PDAT4 |= (1 << 2); +} + +void _buttonlight_off(void) +{ + PDAT3 &= ~(3 << 2); + PDAT4 &= ~(1 << 2); +} + bool _backlight_init(void) { + /* Enable button LEDs: P3.2 (menu/back), P3.3 (cursor), P4.2 (middle) */ + PCON3 = (PCON3 & ~0x0000FF00) | 0x00001100; + PCON4 = (PCON4 & ~0x00000F00) | 0x00000100; + /* enable backlight pin as timer output */ PCON0 = ((PCON0 & ~(3 << 0)) | (2 << 0)); |