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39 lines
846 B
C
39 lines
846 B
C
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#include <dev/leds.h>
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#include <AT91SAM7S64.h>
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#define GREEN_PIN AT91C_PIO_PA3
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#define YELLOW_PIN AT91C_PIO_PA4
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#define RED_PIN AT91C_PIO_PA8
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#define ALL_PINS (GREEN_PIN | YELLOW_PIN | RED_PIN)
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void
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leds_arch_init(void)
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{
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*AT91C_PIOA_PER = ALL_PINS;
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*AT91C_PIOA_OER = ALL_PINS;
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*AT91C_PIOA_MDER = ALL_PINS;
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*AT91C_PIOA_SODR = ALL_PINS;
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}
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unsigned char
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leds_arch_get(void)
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{
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unsigned char on = 0;
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if (*AT91C_PIOA_ODSR & GREEN_PIN) on |= LEDS_GREEN;
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if (*AT91C_PIOA_ODSR & YELLOW_PIN) on |= LEDS_YELLOW;
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if (*AT91C_PIOA_ODSR & RED_PIN) on |= LEDS_RED;
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return on;
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}
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void
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leds_arch_set(unsigned char leds)
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{
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unsigned int set = 0;
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if (leds & LEDS_GREEN) set |= GREEN_PIN;
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if (leds & LEDS_YELLOW) set |= YELLOW_PIN;
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if (leds & LEDS_RED) set |= RED_PIN;
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*AT91C_PIOA_CODR = set;
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*AT91C_PIOA_SODR = (~set) & ALL_PINS;
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}
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