qmk_firmware/keyboards/yampad/yampad.c

/* Copyright 2019
 *
 * 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 "yampad.h"

#if defined(OLED_ENABLE)
__attribute__((weak))
oled_rotation_t oled_init_user(oled_rotation_t rotation) {
    return OLED_ROTATION_270;  // flips the display 270 degrees
}

__attribute__((weak))
void oled_task_user(void) {
  // Host Keyboard Layer Status
  oled_write_P(PSTR("Layer"), false);
  switch (get_highest_layer(layer_state)) {
    case 0:
      oled_write_ln_P(PSTR(" BAS"), false);
      break;
    case 1:
      oled_write_ln_P(PSTR(" NAV"), false);
      break;
    case 2:
      oled_write_ln_P(PSTR(" RGB"), false);
      break;
    default:
      // Or use the write_ln shortcut over adding '\n' to the end of your string
      oled_write_ln_P(PSTR(" UND"), false);
  }

  // Host Keyboard LED Status
  led_t led_state = host_keyboard_led_state();
  oled_write_P(PSTR("-----"), false);
  oled_write_P(PSTR("Stats"), false);
  oled_write_P(led_state.num_lock ? PSTR("num:*") : PSTR("num:."), false);
  oled_write_P(led_state.caps_lock ? PSTR("cap:*") : PSTR("cap:."), false);
  oled_write_P(led_state.scroll_lock ? PSTR("scr:*") : PSTR("scr:."), false);

  // Host Keyboard RGB backlight status
  oled_write_P(PSTR("-----"), false);
  oled_write_P(PSTR("Light"), false);

  static char led_buf[30];
  snprintf(led_buf, sizeof(led_buf) - 1, "RGB:%cM: %2d\nh: %2ds: %2dv: %2d\n",
      rgblight_is_enabled() ? '*' : '.', (uint8_t)rgblight_get_mode(),
      (uint8_t)(rgblight_get_hue() / RGBLIGHT_HUE_STEP),
      (uint8_t)(rgblight_get_sat() / RGBLIGHT_SAT_STEP),
      (uint8_t)(rgblight_get_val() / RGBLIGHT_VAL_STEP));
  oled_write(led_buf, false);
}
#endif