| 1 | /* $Id: ledpwm.h,v 1.4 2010/07/25 20:40:44 simimeie Exp $ |
| 2 | * Functions for led brightness control via PWM (pulse width modulation). |
| 3 | */ |
| 4 | |
| 5 | #ifndef _LEDPWM_H_ |
| 6 | #define _LEDPWM_H_ |
| 7 | |
| 8 | #define LEDPWM_REDLED 0 |
| 9 | #define LEDPWM_GREENLED 1 |
| 10 | #define LEDPWM_BLUELED 2 |
| 11 | |
| 12 | extern uint8_t ledpwm_re; |
| 13 | extern uint8_t ledpwm_gr; |
| 14 | extern uint8_t ledpwm_bl; |
| 15 | extern uint8_t ledpwm_bri; |
| 16 | |
| 17 | /* Temporary for debugging - these should be internal */ |
| 18 | extern volatile uint16_t ledpwm_val[3]; |
| 19 | extern volatile uint16_t ledpwm_curoreg; |
| 20 | |
| 21 | /* Init PWM (pins and timers) */ |
| 22 | void ledpwm_init(void); |
| 23 | |
| 24 | /* Set brightness for a certain LED */ |
| 25 | void ledpwm_setled(uint8_t led, uint16_t val); |
| 26 | |
| 27 | /* Set brightness for all LEDs */ |
| 28 | void ledpwm_set(uint8_t red, uint8_t green, uint8_t blue, uint8_t br); |
| 29 | |
| 30 | #endif /* _LEDPWM_H_ */ |