OpenModem/hardware/LED.c

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2019-01-12 07:12:51 -07:00
#include "LED.h"
#include "util/time.h"
uint8_t ledIntensity = CONFIG_LED_INTENSITY;
uint32_t com_led_timeout = 0;
void LED_init(void) {
// Enable output for LED pins and drain pin
LED_DDR |= _BV(0) | // RX
_BV(1) | // TX
_BV(2) | // Status
_BV(3) | // PWM drain
_BV(4); // COM
LED_PORT &= 0b11100000;
TCCR0A = _BV(WGM00) |
_BV(WGM01) |
_BV(COM0A1)|
_BV(COM0A0);
TCCR0B = _BV(CS00);
OCR0A = ledIntensity;
}
void LED_setIntensity(uint8_t value) {
ledIntensity = value;
OCR0A = ledIntensity;
}
void LED_COM_ON(void) {
LED_PORT |= _BV(4);
int32_t xa = timer_clock();
com_led_timeout = xa + ms_to_ticks(COM_LED_TIMEOUT_MS);
if (xa > com_led_timeout) {
while(true) {
LED_COM_ON();
LED_RX_ON();
LED_TX_ON();
}
}
}
void LED_COM_OFF(void) {
LED_PORT &= ~_BV(4);
}
void led_status(void) {
if (timer_clock() > com_led_timeout) {
if (LED_PORT & _BV(4)) {
printf("%d\r\n", timer_clock());
LED_COM_OFF();
}
}
}