flight/pios/inc/pios_wavplay.h

   1 /**
   2  ******************************************************************************
   3  * @addtogroup PIOS PIOS Core hardware abstraction layer
   4  * @{
   5  * @addtogroup PIOS_WAVPLAY Code for wave audio generator
   6  * @brief Wave audio generator
   7  * @{
   8  *
   9  * @file       pios_wavplay.h
  10  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2012.
  11  * @brief      audio generator
  12  * @see        The GNU Public License (GPL) Version 3
  13  *
  14  ******************************************************************************
  15  */
  16 /*
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 3 of the License, or
  20  * (at your option) any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful, but
  23  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  24  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  25  * for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License along
  28  * with this program; if not, write to the Free Software Foundation, Inc.,
  29  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  30  */
  31
  32 #ifndef PIOS_WAVPLAY_H
  33 #define PIOS_WAVPLAY_H
  34
  35 #include <pios_stm32.h>
  36
  37 #define BUFFERSIZE 512 // Defines the buffer size to hold data from the SD card.
  38
  39 struct pios_dac_cfg {
  40     TIM_TypeDef *timer;
  41     TIM_TimeBaseInitTypeDef time_base_init;
  42     struct stm32_irq  irq;
  43     struct stm32_dma  dma;
  44     uint32_t channel;
  45     DAC_InitTypeDef   dac_init;
  46     struct stm32_gpio dac_io;
  47 };
  48
  49 extern void PIOS_WavPlay_Init(const struct pios_dac_cfg *cfg);
  50 extern uint8_t WavePlayer_Start(void);
  51
  52 #endif /* PIOS_WAVPLAY_H */