audio_if.h

00001 /**
00002 ******************************************************************************
00003 * @file    /Inc/audio_if.h
00004 * @author  Central Labs
00005 * @version V1.0.0
00006 * @date    7-May-2015
00007 * @brief   Header for audio_if.c file.
00008 ******************************************************************************
00009 @attention
00010 *
00011 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
00012 *
00013 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
00014 * You may not use this file except in compliance with the License.
00015 * You may obtain a copy of the License at:
00016 *
00017 *        http://www.st.com/software_license_agreement_liberty_v2
00018 *
00019 * Redistribution and use in source and binary forms, with or without modification,
00020 * are permitted provided that the following conditions are met:
00021 *   1. Redistributions of source code must retain the above copyright notice,
00022 *      this list of conditions and the following disclaimer.
00023 *   2. Redistributions in binary form must reproduce the above copyright notice,
00024 *      this list of conditions and the following disclaimer in the documentation
00025 *      and/or other materials provided with the distribution.
00026 *   3. Neither the name of STMicroelectronics nor the names of its contributors
00027 *      may be used to endorse or promote products derived from this software
00028 *      without specific prior written permission.
00029 *
00030 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00031 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00032 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00033 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00034 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00035 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00036 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00037 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00038 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00039 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00040 *
00041 ******************************************************************************
00042 */ 
00043 
00044 /* Define to prevent recursive inclusion -------------------------------------*/
00045 #ifndef __AUDIO_IF_H
00046 #define __AUDIO_IF_H
00047 
00048 /* Includes ------------------------------------------------------------------*/
00049 #include "mbed.h"
00050 #include "main.h"
00051 //#include "x_nucleo_cca02m1_audio_l4.h"
00052 #include "stm32l476g_discovery_audio.h"
00053 #include <cstdint>
00054 
00055 
00056 /* Exported types ------------------------------------------------------------*/
00057 /* Exported constants --------------------------------------------------------*/
00058 /* Exported macro ------------------------------------------------------------*/
00059 /* Exported functions ------------------------------------------------------- */
00060 
00061 
00062 extern int8_t Audio_Init(void);
00063 extern int8_t Audio_Record(uint16_t * recbuff);
00064 //extern int8_t Audio_VolumeCtl(int16_t Volume);
00065 //extern int8_t Audio_MuteCtl(uint8_t cmd);
00066 extern int8_t Audio_Stop(void);
00067 //extern int8_t Audio_Pause(void);
00068 //extern int8_t Audio_Resume(void);
00069 //extern int8_t Audio_CommandMgr(uint8_t cmd);
00070 //extern void AudioProcess(uint16_t * pbuf, uint16_t * recbuff);
00071 extern void PrintData(uint16_t * recbuff);
00072 extern void WriteData(uint16_t * recbuff);
00073 //void BSP_AUDIO_IN_HalfTransfer_CallBack(void);
00074 
00075 int rec(const char *filename, uint16_t * recbuff, uint16_t size);
00076 
00077  /** 
00078   * @brief Sampling Frequency enumerator  
00079   */ 
00080 typedef enum
00081 {
00082     SAMPLING_FREQ_16000 = 16000,
00083     SAMPLING_FREQ_32000 = 32000,
00084     SAMPLING_FREQ_48000 = 48000 
00085       
00086 }OUTPUT_FREQ_TypeDef;
00087 
00088 
00089 #define RAM_TOTAL   0x1000
00090 
00091 #define AUDIO_CHANNELS                  1
00092 #define AUDIO_SAMPLING_FREQUENCY        48000
00093 
00094 #define PCM_TEMP_BUFF_SIZE  AUDIO_SAMPLING_FREQUENCY/1000*1
00095 
00096 
00097 #if defined(STM32L053xx) || defined(STM32F072xB)
00098 #if (AUDIO_CHANNELS > 2)
00099 #error "Acquisition of more than 2 microphone is not yet supported for STM32L0 and STM32F0"
00100 #elif (AUDIO_SAMPLING_FREQUENCY > 32000)
00101 #error "Acquisition of sampling frequencies above 32 KHz is not yet supported for STM32L0 and STM32F0"
00102 #elif (AUDIO_SAMPLING_FREQUENCY == 32000 && AUDIO_CHANNELS == 2)
00103 #error "These settings are not yet supported for STM32L0 and STM32F0"
00104 #endif
00105 #endif
00106 
00107 #endif
00108  /* __AUDIO_IF_H */
00109 
00110 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
00111