127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
/*
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Copyright 2022, Savanni D'Gerinel <savanni@luminescent-dreams.com>
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This file is part of Savanni's AVR library.
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This AVR library is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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This AVR library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with this AVR library. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <avr/interrupt.h>
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#include <avr/sleep.h>
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#include <dio.h>
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#include <display.h>
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#include "lantern.h"
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#include <sk9822.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define FPS 15
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#define TICKS_PER_SECOND 7812
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#define FPS_TIMEOUT TICKS_PER_SECOND / FPS
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#define PULSE_OFF_COUNT FPS * 5
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#define PULSE_ON_COUNT 5
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typedef struct {
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bool frame_timeout;
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} status_flags_t;
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status_flags_t status_flags;
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ISR(TIMER1_COMPA_vect) {
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status_flags.frame_timeout = true;
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}
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void setup_fps_timer(void) {
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// WGM = 0100: CTC with OCR1nA top
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// CS = 101: clock / 1024
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TCCR1A = 0;
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TCCR1B = _BV(3) | _BV(2) | _BV(0);
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// Set the top for the counter
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OCR1AH = FPS_TIMEOUT >> 8;
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OCR1AL = FPS_TIMEOUT & 0xff;
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// Enable compare on A match interrupt
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TIMSK1 |= _BV(1);
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}
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int main(void) {
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EIMSK = 1 << INT2;
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EICRA |= 1 << ISC21 | 1 << ISC20;
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/*
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for (int i = 0; i < 4; i++) {
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status_flags.button_press[i] = false;
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}
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*/
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status_flags.frame_timeout = false;
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// Disable unneeded modules
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PRR0 = _BV(7) | _BV(5) | _BV(2);
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PRR1 = _BV(7) | _BV(4) | _BV(3) | _BV(0);
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display_t display = {
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.reg = {
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.output = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 7 },
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.shift_clock = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 6 },
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.latch_clock = { .ddr = &DDRF, .port = &PORTF, .pin = &PINF, .addr = 5 },
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}
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};
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display_init(&display);
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display_write_message(&display, "ready");
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_delay_ms(1000);
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/*
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for (int i = 0; i < 4; i++) {
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dio_set_direction(&buttons[i], LINE_IN);
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}
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*/
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sk9822_t lights = {
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.clock_pin = { .ddr = &DDRC, .port = &PORTC, .pin = &PINC, .addr = 7 },
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.data_pin = { .ddr = &DDRD, .port = &PORTD, .pin = &PIND, .addr = 6 }
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};
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rgb_t colors[LIGHT_COUNT];
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lantern_t lantern = lantern_new(lights);
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lantern_set_mode(&lantern, normal);
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lantern_step(&lantern, colors);
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sk9822_send(&lights, colors, LIGHT_COUNT);
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setup_fps_timer();
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set_sleep_mode(SLEEP_MODE_IDLE);
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while(1) {
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if (status_flags.frame_timeout) {
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status_flags.frame_timeout = false;
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lantern_step(&lantern, colors);
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sk9822_send(&lights, colors, LIGHT_COUNT);
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}
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/*
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if (status_flags.button_press[0]) {
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status_flags.button_press[0] = false;
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lantern_set_mode(&lantern, normal);
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} else if (status_flags.button_press[1]) {
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status_flags.button_press[1] = false;
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lantern_set_mode(&lantern, spooky);
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} else if (status_flags.button_press[2]) {
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status_flags.button_press[2] = false;
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lantern_set_mode(&lantern, eerie);
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*/
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sei();
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sleep_mode();
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cli();
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}
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return 0;
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}
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