src/main/drivers/audio.h

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 void audioSetupIO(void);
  22 void audioGenerateWhiteNoise(void);
  23
  24 #define TONE_COUNT 64
  25 #define TONE_MIN 0
  26 #define TONE_MAX (TONE_COUNT - 1)
  27 #define TONE_MID ((TONE_COUNT / 2) + TONE_MIN)
  28 void audioPlayTone(uint8_t tone); // TONE_MIN to TONE_MAX
  29
  30 void audioSilence(void);