186 lines
6.3 KiB
C
186 lines
6.3 KiB
C
/**
|
|
******************************************************************************
|
|
* @file USB_Device/AUDIO_Standalone/Src/usbd_audio_if.c
|
|
* @author MCD Application Team
|
|
* @brief USB Device Audio interface file.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* <h2><center>© Copyright (c) 2017 STMicroelectronics International N.V.
|
|
* All rights reserved.</center></h2>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted, provided that the following conditions are met:
|
|
*
|
|
* 1. Redistribution of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* 3. Neither the name of STMicroelectronics nor the names of other
|
|
* contributors to this software may be used to endorse or promote products
|
|
* derived from this software without specific written permission.
|
|
* 4. This software, including modifications and/or derivative works of this
|
|
* software, must execute solely and exclusively on microcontroller or
|
|
* microprocessor devices manufactured by or for STMicroelectronics.
|
|
* 5. Redistribution and use of this software other than as permitted under
|
|
* this license is void and will automatically terminate your rights under
|
|
* this license.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
|
|
* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
|
|
* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
|
|
* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
|
|
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
/* Includes ------------------------------------------------------------------ */
|
|
#include "usbd_audio_if.h"
|
|
#include "sai.h"
|
|
#include "es8388.h"
|
|
#include "sys.h"
|
|
#include "malloc.h"
|
|
#include "stm32h743i_eval_audio.h"
|
|
|
|
static int8_t Audio_Init(uint32_t AudioFreq, uint32_t Volume, uint32_t options);
|
|
static int8_t Audio_DeInit(uint32_t options);
|
|
static int8_t Audio_PlaybackCmd(uint8_t * pbuf, uint32_t size, uint8_t cmd);
|
|
static int8_t Audio_VolumeCtl(uint8_t vol);
|
|
static int8_t Audio_MuteCtl(uint8_t cmd);
|
|
static int8_t Audio_PeriodicTC(uint8_t cmd);
|
|
static int8_t Audio_GetState(void);
|
|
|
|
/* Private variables --------------------------------------------------------- */
|
|
extern USBD_HandleTypeDef USBD_Device;
|
|
USBD_AUDIO_ItfTypeDef USBD_AUDIO_fops=
|
|
{
|
|
Audio_Init,
|
|
Audio_DeInit,
|
|
Audio_PlaybackCmd,
|
|
Audio_VolumeCtl,
|
|
Audio_MuteCtl,
|
|
Audio_PeriodicTC,
|
|
Audio_GetState,
|
|
};
|
|
|
|
/**
|
|
* @brief Initializes the AUDIO media low layer.
|
|
* @param AudioFreq: Audio frequency used to play the audio stream.
|
|
* @param Volume: Initial volume level (from 0 (Mute) to 100 (Max))
|
|
* @param options: Reserved for future use
|
|
* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
|
|
*/
|
|
static int8_t Audio_Init(uint32_t AudioFreq, uint32_t Volume, uint32_t options)
|
|
{
|
|
Volume=AUDIO_DEFAULT_VOLUME;
|
|
BSP_AUDIO_OUT_Init(OUTPUT_DEVICE_BOTH, Volume, AudioFreq);
|
|
//BSP_AUDIO_OUT_SetAudioFrameSlot(CODEC_AUDIOFRAME_SLOT_02);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief De-Initializes the AUDIO media low layer.
|
|
* @param options: Reserved for future use
|
|
* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
|
|
*/
|
|
static int8_t Audio_DeInit(uint32_t options)
|
|
{
|
|
BSP_AUDIO_OUT_Stop(CODEC_PDWN_SW);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Handles AUDIO command.
|
|
* @param pbuf: Pointer to buffer of data to be sent
|
|
* @param size: Number of data to be sent (in bytes)
|
|
* @param cmd: Command opcode
|
|
* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
|
|
*/
|
|
static int8_t Audio_PlaybackCmd(uint8_t * pbuf, uint32_t size, uint8_t cmd)
|
|
{
|
|
switch (cmd)
|
|
{
|
|
case AUDIO_CMD_START:
|
|
BSP_AUDIO_OUT_Play((uint16_t *) pbuf, 2 * size);
|
|
break;
|
|
|
|
case AUDIO_CMD_PLAY:
|
|
BSP_AUDIO_OUT_ChangeBuffer((uint16_t *) pbuf, 2 * size);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Controls AUDIO Volume.
|
|
* @param vol: Volume level (0..100)
|
|
* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
|
|
*/
|
|
static int8_t Audio_VolumeCtl(uint8_t vol)
|
|
{
|
|
BSP_AUDIO_OUT_SetVolume(vol);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Controls AUDIO Mute.
|
|
* @param cmd: Command opcode
|
|
* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
|
|
*/
|
|
static int8_t Audio_MuteCtl(uint8_t cmd)
|
|
{
|
|
BSP_AUDIO_OUT_SetMute(cmd);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Audio_PeriodicTC
|
|
* @param cmd: Command opcode
|
|
* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
|
|
*/
|
|
static int8_t Audio_PeriodicTC(uint8_t cmd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Gets AUDIO State.
|
|
* @param None
|
|
* @retval Result of the operation: USBD_OK if all operations are OK else USBD_FAIL
|
|
*/
|
|
static int8_t Audio_GetState(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief Manages the DMA full Transfer complete event.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
void BSP_AUDIO_OUT_TransferComplete_CallBack(void)
|
|
{
|
|
USBD_AUDIO_Sync(&USBD_Device, AUDIO_OFFSET_FULL);
|
|
}
|
|
|
|
/**
|
|
* @brief Manages the DMA Half Transfer complete event.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
void BSP_AUDIO_OUT_HalfTransfer_CallBack(void)
|
|
{
|
|
USBD_AUDIO_Sync(&USBD_Device, AUDIO_OFFSET_HALF);
|
|
}
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|