qmk-firmware/keyboards/woodkeys/meira/meira.c

/* Copyright 2017 Cole Markham, WoodKeys.click
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "meira.h"
#include "issi.h"
#include "TWIlib.h"
#include "lighting.h"
#include "quantum.h"
#define BACKLIGHT_BREATHING

extern void backlight_set(uint8_t level);

void matrix_init_kb(void)
{
    debug_enable=true;
    print("meira matrix_init_kb\n");

#ifdef ISSI_ENABLE
    issi_init();
#endif
#ifdef BACKLIGHT_ENABLE
    backlight_set(5);
#endif
#ifdef WATCHDOG_ENABLE
    // This is done after turning the layer LED red, if we're caught in a loop
    // we should get a flashing red light
    wdt_enable(WDTO_500MS);
#endif

    // put your keyboard start-up code here
    // runs once when the firmware starts up
    matrix_init_user();
}

void matrix_scan_kb(void)
{
#ifdef WATCHDOG_ENABLE
    wdt_reset();
#endif
#ifdef ISSI_ENABLE
    // switch/underglow lighting update
    static uint32_t issi_device = 0;
    static uint32_t twi_last_ready = 0;
    if(twi_last_ready > 1000){
        // Its been way too long since the last ISSI update, reset the I2C bus and start again
        xprintf("TWI failed to recover, TWI re-init\n");
        twi_last_ready = 0;
        TWIInit();
        force_issi_refresh();
    }
    if(isTWIReady()){
        twi_last_ready = 0;
        // If the i2c bus is available, kick off the issi update, alternate between devices
        update_issi(issi_device, issi_device);
        if(issi_device){
            issi_device = 0;
        }else{
            issi_device = 3;
        }
    }else{
        twi_last_ready++;
    }
#endif
    matrix_scan_user();
}

bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
    // Test code that turns on the switch led for the key that is pressed
    // set_backlight_by_keymap(record->event.key.col, record->event.key.row);
    if (keycode == QK_BOOT) {
        reset_keyboard_kb();
    } else {
    }
	return process_record_user(keycode, record);
}

void reset_keyboard_kb(){
#ifdef WATCHDOG_ENABLE
    MCUSR = 0;
    wdt_disable();
    wdt_reset();
#endif
    xprintf("programming!\n");
    reset_keyboard();
}