wm8994.h

00001 /**
00002   ******************************************************************************
00003   * @file    wm8994.h
00004   * @author  MCD Application Team
00005   * @version V2.0.0
00006   * @date    24-June-2015
00007   * @brief   This file contains all the functions prototypes for the 
00008   *          wm8994.c driver.
00009   ******************************************************************************
00010   * @attention
00011   *
00012   * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
00013   *
00014   * Redistribution and use in source and binary forms, with or without modification,
00015   * are permitted provided that the following conditions are met:
00016   *   1. Redistributions of source code must retain the above copyright notice,
00017   *      this list of conditions and the following disclaimer.
00018   *   2. Redistributions in binary form must reproduce the above copyright notice,
00019   *      this list of conditions and the following disclaimer in the documentation
00020   *      and/or other materials provided with the distribution.
00021   *   3. Neither the name of STMicroelectronics nor the names of its contributors
00022   *      may be used to endorse or promote products derived from this software
00023   *      without specific prior written permission.
00024   *
00025   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00026   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00027   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00028   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00029   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00030   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00031   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00032   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00033   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00034   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00035   *
00036   ******************************************************************************
00037   */
00038 
00039 /* Define to prevent recursive inclusion -------------------------------------*/
00040 #ifndef __WM8994_H
00041 #define __WM8994_H
00042 
00043 /* Includes ------------------------------------------------------------------*/
00044 #include "../Common/audio.h"
00045 
00046 /** @addtogroup BSP
00047   * @{
00048   */ 
00049 
00050 /** @addtogroup Component
00051   * @{
00052   */ 
00053   
00054 /** @addtogroup WM8994
00055   * @{
00056   */
00057 
00058 /** @defgroup WM8994_Exported_Types
00059   * @{
00060   */
00061 
00062 /**
00063   * @}
00064   */
00065 
00066 /** @defgroup WM8994_Exported_Constants
00067   * @{
00068   */ 
00069 
00070 /******************************************************************************/
00071 /***************************  Codec User defines ******************************/
00072 /******************************************************************************/
00073 /* Codec output DEVICE */
00074 #define OUTPUT_DEVICE_SPEAKER                 ((uint16_t)0x0001)
00075 #define OUTPUT_DEVICE_HEADPHONE               ((uint16_t)0x0002)
00076 #define OUTPUT_DEVICE_BOTH                    ((uint16_t)0x0003)
00077 #define OUTPUT_DEVICE_AUTO                    ((uint16_t)0x0004)
00078 #define INPUT_DEVICE_DIGITAL_MICROPHONE_1     ((uint16_t)0x0100)
00079 #define INPUT_DEVICE_DIGITAL_MICROPHONE_2     ((uint16_t)0x0200)
00080 #define INPUT_DEVICE_INPUT_LINE_1             ((uint16_t)0x0300)
00081 #define INPUT_DEVICE_INPUT_LINE_2             ((uint16_t)0x0400)
00082 
00083 /* Volume Levels values */
00084 #define DEFAULT_VOLMIN                0x00
00085 #define DEFAULT_VOLMAX                0xFF
00086 #define DEFAULT_VOLSTEP               0x04
00087 
00088 #define AUDIO_PAUSE                   0
00089 #define AUDIO_RESUME                  1
00090 
00091 /* Codec POWER DOWN modes */
00092 #define CODEC_PDWN_HW                 1
00093 #define CODEC_PDWN_SW                 2
00094 
00095 /* MUTE commands */
00096 #define AUDIO_MUTE_ON                 1
00097 #define AUDIO_MUTE_OFF                0
00098 
00099 /* AUDIO FREQUENCY */
00100 #define AUDIO_FREQUENCY_192K          ((uint32_t)192000)
00101 #define AUDIO_FREQUENCY_96K           ((uint32_t)96000)
00102 #define AUDIO_FREQUENCY_48K           ((uint32_t)48000)
00103 #define AUDIO_FREQUENCY_44K           ((uint32_t)44100)
00104 #define AUDIO_FREQUENCY_32K           ((uint32_t)32000)
00105 #define AUDIO_FREQUENCY_22K           ((uint32_t)22050)
00106 #define AUDIO_FREQUENCY_16K           ((uint32_t)16000)
00107 #define AUDIO_FREQUENCY_11K           ((uint32_t)11025)
00108 #define AUDIO_FREQUENCY_8K            ((uint32_t)8000)  
00109 
00110 #define VOLUME_CONVERT(Volume)        (((Volume) > 100)? 100:((uint8_t)(((Volume) * 63) / 100)))
00111 #define VOLUME_IN_CONVERT(Volume)     (((Volume) >= 100)? 239:((uint8_t)(((Volume) * 240) / 100)))
00112 
00113 /******************************************************************************/
00114 /****************************** REGISTER MAPPING ******************************/
00115 /******************************************************************************/
00116 /** 
00117   * @brief  WM8994 ID  
00118   */  
00119 #define  WM8994_ID    0x8994
00120 
00121 /**
00122   * @brief Device ID Register: Reading from this register will indicate device 
00123   *                            family ID 8994h
00124   */
00125 #define WM8994_CHIPID_ADDR                  0x00
00126 
00127 /**
00128   * @}
00129   */ 
00130 
00131 /** @defgroup WM8994_Exported_Macros
00132   * @{
00133   */ 
00134 /**
00135   * @}
00136   */ 
00137 
00138 /** @defgroup WM8994_Exported_Functions
00139   * @{
00140   */
00141     
00142 /*------------------------------------------------------------------------------
00143                            Audio Codec functions 
00144 ------------------------------------------------------------------------------*/
00145 /* High Layer codec functions */
00146 uint32_t wm8994_Init(uint16_t DeviceAddr, uint16_t OutputInputDevice, uint8_t Volume, uint32_t AudioFreq);
00147 void     wm8994_DeInit(void);
00148 uint32_t wm8994_ReadID(uint16_t DeviceAddr);
00149 uint32_t wm8994_Play(uint16_t DeviceAddr, uint16_t* pBuffer, uint16_t Size);
00150 uint32_t wm8994_Pause(uint16_t DeviceAddr);
00151 uint32_t wm8994_Resume(uint16_t DeviceAddr);
00152 uint32_t wm8994_Stop(uint16_t DeviceAddr, uint32_t Cmd);
00153 uint32_t wm8994_SetVolume(uint16_t DeviceAddr, uint8_t Volume);
00154 uint32_t wm8994_SetMute(uint16_t DeviceAddr, uint32_t Cmd);
00155 uint32_t wm8994_SetOutputMode(uint16_t DeviceAddr, uint8_t Output);
00156 uint32_t wm8994_SetFrequency(uint16_t DeviceAddr, uint32_t AudioFreq);
00157 uint32_t wm8994_Reset(uint16_t DeviceAddr);
00158 
00159 /* AUDIO IO functions */
00160 void    AUDIO_IO_Init(void);
00161 void    AUDIO_IO_DeInit(void);
00162 void    AUDIO_IO_Write(uint8_t Addr, uint16_t Reg, uint16_t Value);
00163 uint8_t AUDIO_IO_Read(uint8_t Addr, uint16_t Reg);
00164 void    AUDIO_IO_Delay(uint32_t Delay);
00165 
00166 /* Audio driver structure */
00167 extern AUDIO_DrvTypeDef   wm8994_drv;
00168 
00169 #endif /* __WM8994_H */
00170 
00171 /**
00172   * @}
00173   */ 
00174 
00175 /**
00176   * @}
00177   */ 
00178 
00179 /**
00180   * @}
00181   */
00182 
00183 /**
00184   * @}
00185   */ 
00186 
00187 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
00188