133 lines
1.9 KiB
C
133 lines
1.9 KiB
C
#include <inttypes.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include <stdlib.h>
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#define LED_L (1 << PORTC0)
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#define LED_R (1 << PORTC2)
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#define MOTOR_ON (0<<PORTB1)
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#define MOTOR_OFF (1<<PORTB1)
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void init_leds(void){
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//enable LED channels as output
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DDRC |= (1 << PORTC0) | (1 << PORTC1) | (1 << PORTC2) | (1 << PORTC3);
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// both LEDs off
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PORTC &= ~((1 << PORTC0) | (1 << PORTC1) | (1 << PORTC2) | (1 << PORTC3));
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return;
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};
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void inline led_on(int leds){
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PORTC |= leds;
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};
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void inline led_off(int leds){
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PORTC &= ~leds;
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};
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void init_buzzr(){
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//its on B2 and C5, for reasons
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DDRC |= (1 << PORTC5);
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DDRB |= (1 << PORTB2);
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//switch it off
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buzzr_off();
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return;
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};
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void buzzr_up(){
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PORTC &= ~(1 << PORTC5);
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PORTB |= (1 << PORTB2);
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return;
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};
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void buzzr_down(){
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PORTC |= (1 << PORTC5);
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PORTB &= ~(1 << PORTB2);
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};
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void inline buzzr_off(){
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PORTC &= ~(1 << PORTC5);
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PORTB &= ~(1 << PORTB2);
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};
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void buzzr_inv(){
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PORTC ^= (1 << PORTC5);
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PORTB ^= (1 << PORTB2);
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};
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void init_motor(void)
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{
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/* vibration motor on B1, initially off: */
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DDRB |= (1 << PORTB1);
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PORTB &= ~( 1<<PORTB1);
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return;
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}
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void set_motor(int val){
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PORTB = ~(val);
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PORTB = PORTB;
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return;
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};
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void init_switch(){
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return;
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};
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void blinkrattlebeep(){
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led_off(LED_L|LED_R);
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_delay_ms(100);
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led_on(LED_L);
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_delay_ms(100);
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led_off(LED_L);
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led_on(LED_R);
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_delay_ms(100);
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led_off(LED_R);
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set_motor(MOTOR_ON);
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_delay_ms(200);
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set_motor(MOTOR_OFF);
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buzzr_up();
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for (int i=0; i<100; i++){
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_delay_ms(2);
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buzzr_inv();
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};
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buzzr_off();
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};
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void __attribute__((noreturn))
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main(void)
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{
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/* hardware initialisation: */
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init_motor();
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init_buzzr();
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init_leds();
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uint8_t mode = 0;
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for(;;) /* ever */ {
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//do something
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//TODO: check switches and change mode
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switch(mode){
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case 1 : led_on(LED_L|LED_R); _delay_ms(500); led_off(LED_L|LED_R); break;
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case 2 : break;
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default : blinkrattlebeep();
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};
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}
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/* never return 0; */
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}
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