root / toolbox / led.h @ 94548bf4
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| 1 | 532ba0bd | Tom Mullins | #ifndef LED_H
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| 2 | #define LED_H
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| 3 | |||
| 4 | #include <avr/io.h> |
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| 5 | |||
| 6 | 1085ef77 | Tom Mullins | enum color_t {
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| 7 | OFF, RED, YELLOW, GREEN |
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| 8 | }; |
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| 9 | |||
| 10 | 532ba0bd | Tom Mullins | static inline void led_init() {DDRC |= _BV(DDC1) | _BV(DDC0);} |
| 11 | static inline void led_off() {PORTC &= ~(_BV(PC1) | _BV(PC0));} |
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| 12 | static inline void led_red() {PORTC = (PORTC & ~_BV(PC0)) | _BV(PC1);} |
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| 13 | static inline void led_yellow() {PORTC |= _BV(PC1) | _BV(PC0);} |
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| 14 | static inline void led_green() {PORTC = (PORTC & ~_BV(PC1)) | _BV(PC0);} |
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| 15 | |||
| 16 | dc472500 | Tom Mullins | /* Starts LED blinking */
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| 17 | 1085ef77 | Tom Mullins | void led_blink_start(unsigned int period_ms, char n_times, enum color_t color); |
| 18 | dc472500 | Tom Mullins | |
| 19 | /* Returns nonzero if blinking has finished */
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| 20 | char led_blink_done();
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| 21 | |||
| 22 | 94548bf4 | Tom Mullins | /* Call this every TICK_MS to handle LED blinking */
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| 23 | void led_tick();
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| 24 | |||
| 25 | 532ba0bd | Tom Mullins | #endif |