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STM32756G_EVAL BSP User Manual
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stm32756g_eval_audio.h
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00001 /** 00002 ****************************************************************************** 00003 * @file stm32756g_eval_audio.h 00004 * @author MCD Application Team 00005 * @version V1.0.0 00006 * @date 22-May-2015 00007 * @brief This file contains the common defines and functions prototypes for 00008 * the stm32756g_eval_audio.c driver. 00009 ****************************************************************************** 00010 * @attention 00011 * 00012 * <h2><center>© 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 __STM32756G_EVAL_AUDIO_H 00041 #define __STM32756G_EVAL_AUDIO_H 00042 00043 #ifdef __cplusplus 00044 extern "C" { 00045 #endif 00046 00047 /* Includes ------------------------------------------------------------------*/ 00048 /* Include audio component Driver */ 00049 #include "../Components/wm8994/wm8994.h" 00050 #include "stm32756g_eval.h" 00051 #include "../../../Middlewares/ST/STM32_Audio/Addons/PDM/pdm_filter.h" 00052 00053 /** @addtogroup BSP 00054 * @{ 00055 */ 00056 00057 /** @addtogroup STM32756G_EVAL 00058 * @{ 00059 */ 00060 00061 /** @defgroup STM32756G_EVAL_AUDIO STM32756G_EVAL_AUDIO 00062 * @{ 00063 */ 00064 00065 /** @defgroup STM32756G_EVAL_AUDIO_Exported_Types STM32756G_EVAL_AUDIO Exported Types 00066 * @{ 00067 */ 00068 /** 00069 * @} 00070 */ 00071 00072 /** @defgroup STM32756G_EVAL_AUDIO_Exported_Constants STM32756G_EVAL_AUDIO Exported Constants 00073 * @{ 00074 */ 00075 00076 /*------------------------------------------------------------------------------ 00077 USER SAI defines parameters 00078 -----------------------------------------------------------------------------*/ 00079 /** CODEC_AudioFrame_SLOT_TDMMode In W8994 codec the Audio frame contains 4 slots : TDM Mode 00080 * TDM format : 00081 * +------------------|------------------|--------------------|-------------------+ 00082 * | CODEC_SLOT0 Left | CODEC_SLOT1 Left | CODEC_SLOT0 Right | CODEC_SLOT1 Right | 00083 * +------------------------------------------------------------------------------+ 00084 */ 00085 /* To have 2 separate audio stream in Both headphone and speaker the 4 slot must be activated */ 00086 #define CODEC_AUDIOFRAME_SLOT_0123 SAI_SLOTACTIVE_0 | SAI_SLOTACTIVE_1 | SAI_SLOTACTIVE_2 | SAI_SLOTACTIVE_3 00087 /* To have an audio stream in headphone only SAI Slot 0 and Slot 2 must be activated */ 00088 #define CODEC_AUDIOFRAME_SLOT_02 SAI_SLOTACTIVE_0 | SAI_SLOTACTIVE_2 00089 /* To have an audio stream in speaker only SAI Slot 1 and Slot 3 must be activated */ 00090 #define CODEC_AUDIOFRAME_SLOT_13 SAI_SLOTACTIVE_1 | SAI_SLOTACTIVE_3 00091 00092 /* SAI peripheral configuration defines */ 00093 #define AUDIO_SAIx SAI2_Block_B 00094 #define AUDIO_SAIx_CLK_ENABLE() __HAL_RCC_SAI2_CLK_ENABLE() 00095 #define AUDIO_SAIx_CLK_DISABLE() __HAL_RCC_SAI2_CLK_DISABLE() 00096 #define AUDIO_SAIx_SCK_AF GPIO_AF8_SAI2 00097 #define AUDIO_SAIx_FS_SD_MCLK_AF GPIO_AF10_SAI2 00098 00099 #define AUDIO_SAIx_MCLK_ENABLE() __HAL_RCC_GPIOE_CLK_ENABLE() 00100 #define AUDIO_SAIx_MCLK_GPIO_PORT GPIOE 00101 #define AUDIO_SAIx_MCLK_PIN GPIO_PIN_6 00102 #define AUDIO_SAIx_SCK_SD_ENABLE() __HAL_RCC_GPIOA_CLK_ENABLE() 00103 #define AUDIO_SAIx_SCK_SD_GPIO_PORT GPIOA 00104 #define AUDIO_SAIx_SCK_PIN GPIO_PIN_2 00105 #define AUDIO_SAIx_SD_PIN GPIO_PIN_0 00106 #define AUDIO_SAIx_FS_ENABLE() __HAL_RCC_GPIOG_CLK_ENABLE() 00107 #define AUDIO_SAIx_FS_GPIO_PORT GPIOG 00108 #define AUDIO_SAIx_FS_PIN GPIO_PIN_9 00109 00110 00111 /* SAI DMA Stream definitions */ 00112 #define AUDIO_SAIx_DMAx_CLK_ENABLE() __HAL_RCC_DMA2_CLK_ENABLE() 00113 #define AUDIO_SAIx_DMAx_STREAM DMA2_Stream6 00114 #define AUDIO_SAIx_DMAx_CHANNEL DMA_CHANNEL_3 00115 #define AUDIO_SAIx_DMAx_IRQ DMA2_Stream6_IRQn 00116 #define AUDIO_SAIx_DMAx_PERIPH_DATA_SIZE DMA_PDATAALIGN_HALFWORD 00117 #define AUDIO_SAIx_DMAx_MEM_DATA_SIZE DMA_MDATAALIGN_HALFWORD 00118 #define DMA_MAX_SZE 0xFFFF 00119 00120 #define AUDIO_SAIx_DMAx_IRQHandler DMA2_Stream6_IRQHandler 00121 00122 /* Select the interrupt preemption priority for the DMA interrupt */ 00123 #define AUDIO_OUT_IRQ_PREPRIO ((uint32_t)5) /* Select the preemption priority level(0 is the highest) */ 00124 00125 /*------------------------------------------------------------------------------ 00126 AUDIO IN CONFIGURATION 00127 ------------------------------------------------------------------------------*/ 00128 /* SPI Configuration defines */ 00129 #define AUDIO_I2Sx SPI3 00130 #define AUDIO_I2Sx_CLK_ENABLE() __HAL_RCC_SPI3_CLK_ENABLE() 00131 #define AUDIO_I2Sx_CLK_DISABLE() __HAL_RCC_SPI3_CLK_DISABLE() 00132 #define AUDIO_I2Sx_SCK_PIN GPIO_PIN_3 00133 #define AUDIO_I2Sx_SCK_GPIO_PORT GPIOB 00134 #define AUDIO_I2Sx_SCK_GPIO_CLK_ENABLE() __HAL_RCC_GPIOB_CLK_ENABLE() 00135 #define AUDIO_I2Sx_SCK_GPIO_CLK_DISABLE() __HAL_RCC_GPIOB_CLK_DISABLE() 00136 #define AUDIO_I2Sx_SCK_AF GPIO_AF6_SPI3 00137 00138 #define AUDIO_I2Sx_SD_PIN GPIO_PIN_6 00139 #define AUDIO_I2Sx_SD_GPIO_PORT GPIOD 00140 #define AUDIO_I2Sx_SD_GPIO_CLK_ENABLE() __HAL_RCC_GPIOD_CLK_ENABLE() 00141 #define AUDIO_I2Sx_SD_GPIO_CLK_DISABLE() __HAL_RCC_GPIOD_CLK_DISABLE() 00142 #define AUDIO_I2Sx_SD_AF GPIO_AF5_SPI3 00143 00144 /* I2S DMA Stream Rx definitions */ 00145 #define AUDIO_I2Sx_DMAx_CLK_ENABLE() __HAL_RCC_DMA1_CLK_ENABLE() 00146 #define AUDIO_I2Sx_DMAx_CLK_DISABLE() __HAL_RCC_DMA1_CLK_DISABLE() 00147 #define AUDIO_I2Sx_DMAx_STREAM DMA1_Stream2 00148 #define AUDIO_I2Sx_DMAx_CHANNEL DMA_CHANNEL_0 00149 #define AUDIO_I2Sx_DMAx_IRQ DMA1_Stream2_IRQn 00150 #define AUDIO_I2Sx_DMAx_PERIPH_DATA_SIZE DMA_PDATAALIGN_HALFWORD 00151 #define AUDIO_I2Sx_DMAx_MEM_DATA_SIZE DMA_MDATAALIGN_HALFWORD 00152 00153 #define AUDIO_I2Sx_DMAx_IRQHandler DMA1_Stream2_IRQHandler 00154 00155 /* Select the interrupt preemption priority and subpriority for the IT/DMA interrupt */ 00156 #define AUDIO_IN_IRQ_PREPRIO ((uint32_t)6) /* Select the preemption priority level(0 is the highest) */ 00157 00158 00159 /* Two channels are used: 00160 - one channel as input which is connected to I2S SCK in stereo mode 00161 - one channel as outupt which divides the frequency on the input 00162 */ 00163 00164 #define AUDIO_TIMx_CLK_ENABLE() __HAL_RCC_TIM3_CLK_ENABLE() 00165 #define AUDIO_TIMx_CLK_DISABLE() __HAL_RCC_TIM3_CLK_DISABLE() 00166 #define AUDIO_TIMx TIM3 00167 #define AUDIO_TIMx_IN_CHANNEL TIM_CHANNEL_1 00168 #define AUDIO_TIMx_OUT_CHANNEL TIM_CHANNEL_2 /* Select channel 2 as output */ 00169 #define AUDIO_TIMx_GPIO_CLK_ENABLE() __HAL_RCC_GPIOC_CLK_ENABLE() 00170 #define AUDIO_TIMx_GPIO_CLK_DISABLE() __HAL_RCC_GPIOC_CLK_DISABLE() 00171 #define AUDIO_TIMx_GPIO_PORT GPIOC 00172 #define AUDIO_TIMx_IN_GPIO_PIN GPIO_PIN_6 00173 #define AUDIO_TIMx_OUT_GPIO_PIN GPIO_PIN_7 00174 #define AUDIO_TIMx_AF GPIO_AF2_TIM3 00175 00176 /*------------------------------------------------------------------------------ 00177 CONFIGURATION: Audio Driver Configuration parameters 00178 ------------------------------------------------------------------------------*/ 00179 00180 #define AUDIODATA_SIZE 2 /* 16-bits audio data size */ 00181 00182 /* Audio status definition */ 00183 #define AUDIO_OK ((uint8_t)0) 00184 #define AUDIO_ERROR ((uint8_t)1) 00185 #define AUDIO_TIMEOUT ((uint8_t)2) 00186 00187 /* AudioFreq * DataSize (2 bytes) * NumChannels (Stereo: 2) */ 00188 #define DEFAULT_AUDIO_IN_FREQ I2S_AUDIOFREQ_16K 00189 #define DEFAULT_AUDIO_IN_BIT_RESOLUTION ((uint8_t)16) 00190 #define DEFAULT_AUDIO_IN_CHANNEL_NBR ((uint8_t)2) /* Mono = 1, Stereo = 2 */ 00191 #define DEFAULT_AUDIO_IN_VOLUME ((uint16_t)64) 00192 00193 /* PDM buffer input size */ 00194 #define INTERNAL_BUFF_SIZE (128*DEFAULT_AUDIO_IN_FREQ/16000*DEFAULT_AUDIO_IN_CHANNEL_NBR) 00195 /* PCM buffer output size */ 00196 #define PCM_OUT_SIZE (DEFAULT_AUDIO_IN_FREQ/1000*2) 00197 #define CHANNEL_DEMUX_MASK ((uint8_t)0x55) 00198 00199 /*------------------------------------------------------------------------------ 00200 OPTIONAL Configuration defines parameters 00201 ------------------------------------------------------------------------------*/ 00202 00203 /* Delay for the Codec to be correctly reset */ 00204 #define CODEC_RESET_DELAY ((uint8_t)5) 00205 00206 00207 /*------------------------------------------------------------------------------ 00208 OUTPUT DEVICES definition 00209 ------------------------------------------------------------------------------*/ 00210 00211 /* Alias on existing output devices to adapt to Birdie eval board 2 headphones output */ 00212 #define OUTPUT_DEVICE_HEADPHONE1 OUTPUT_DEVICE_HEADPHONE 00213 #define OUTPUT_DEVICE_HEADPHONE2 OUTPUT_DEVICE_SPEAKER /* Headphone2 is connected to Speaker output of the wm8994 */ 00214 00215 /** 00216 * @} 00217 */ 00218 00219 /** @defgroup STM32756G_EVAL_AUDIO_Exported_Variables STM32756G_EVAL_AUDIO Exported Variables 00220 * @{ 00221 */ 00222 extern __IO uint16_t AudioInVolume; 00223 /** 00224 * @} 00225 */ 00226 00227 /** @defgroup STM32756G_EVAL_AUDIO_Exported_Macros STM32756G_EVAL_AUDIO Exported Macros 00228 * @{ 00229 */ 00230 #define DMA_MAX(x) (((x) <= DMA_MAX_SZE)? (x):DMA_MAX_SZE) 00231 /** 00232 * @} 00233 */ 00234 00235 /** @defgroup STM32756G_EVAL_AUDIO_OUT_Exported_Functions STM32756G_EVAL_AUDIO_OUT Exported Functions 00236 * @{ 00237 */ 00238 uint8_t BSP_AUDIO_OUT_Init(uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq); 00239 uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size); 00240 void BSP_AUDIO_OUT_ChangeBuffer(uint16_t *pData, uint16_t Size); 00241 uint8_t BSP_AUDIO_OUT_Pause(void); 00242 uint8_t BSP_AUDIO_OUT_Resume(void); 00243 uint8_t BSP_AUDIO_OUT_Stop(uint32_t Option); 00244 uint8_t BSP_AUDIO_OUT_SetVolume(uint8_t Volume); 00245 void BSP_AUDIO_OUT_SetFrequency(uint32_t AudioFreq); 00246 void BSP_AUDIO_OUT_SetAudioFrameSlot(uint32_t AudioFrameSlot); 00247 uint8_t BSP_AUDIO_OUT_SetMute(uint32_t Cmd); 00248 uint8_t BSP_AUDIO_OUT_SetOutputMode(uint8_t Output); 00249 void BSP_AUDIO_OUT_DeInit(void); 00250 00251 /* User Callbacks: user has to implement these functions in his code if they are needed. */ 00252 /* This function is called when the requested data has been completely transferred.*/ 00253 void BSP_AUDIO_OUT_TransferComplete_CallBack(void); 00254 00255 /* This function is called when half of the requested buffer has been transferred. */ 00256 void BSP_AUDIO_OUT_HalfTransfer_CallBack(void); 00257 00258 /* This function is called when an Interrupt due to transfer error on or peripheral 00259 error occurs. */ 00260 void BSP_AUDIO_OUT_Error_CallBack(void); 00261 00262 /* These function can be modified in case the current settings (e.g. DMA stream) 00263 need to be changed for specific application needs */ 00264 void BSP_AUDIO_OUT_ClockConfig(SAI_HandleTypeDef *hsai, uint32_t AudioFreq, void *Params); 00265 void BSP_AUDIO_OUT_MspInit(SAI_HandleTypeDef *hsai, void *Params); 00266 void BSP_AUDIO_OUT_MspDeInit(SAI_HandleTypeDef *hsai, void *Params); 00267 00268 /** 00269 * @} 00270 */ 00271 00272 /** @defgroup STM32756G_EVAL_AUDIO_IN_Exported_Functions STM32756G_EVAL_AUDIO_IN Exported Functions 00273 * @{ 00274 */ 00275 uint8_t BSP_AUDIO_IN_Init(uint32_t AudioFreq, uint32_t BitRes, uint32_t ChnlNbr); 00276 uint8_t BSP_AUDIO_IN_Record(uint16_t *pData, uint32_t Size); 00277 uint8_t BSP_AUDIO_IN_Stop(void); 00278 uint8_t BSP_AUDIO_IN_Pause(void); 00279 uint8_t BSP_AUDIO_IN_Resume(void); 00280 uint8_t BSP_AUDIO_IN_SetVolume(uint8_t Volume); 00281 void BSP_AUDIO_IN_DeInit(void); 00282 uint8_t BSP_AUDIO_IN_PDMToPCM(uint16_t* PDMBuf, uint16_t* PCMBuf); 00283 /* User Callbacks: user has to implement these functions in his code if they are needed. */ 00284 /* This function should be implemented by the user application. 00285 It is called into this driver when the current buffer is filled to prepare the next 00286 buffer pointer and its size. */ 00287 void BSP_AUDIO_IN_TransferComplete_CallBack(void); 00288 void BSP_AUDIO_IN_HalfTransfer_CallBack(void); 00289 00290 /* This function is called when an Interrupt due to transfer error on or peripheral 00291 error occurs. */ 00292 void BSP_AUDIO_IN_Error_Callback(void); 00293 00294 /* These function can be modified in case the current settings (e.g. DMA stream) 00295 need to be changed for specific application needs */ 00296 void BSP_AUDIO_IN_MspInit(I2S_HandleTypeDef *hi2s, void *Params); 00297 void BSP_AUDIO_IN_MspDeInit(I2S_HandleTypeDef *hi2s, void *Params); 00298 00299 /** 00300 * @} 00301 */ 00302 00303 /** 00304 * @} 00305 */ 00306 00307 /** 00308 * @} 00309 */ 00310 00311 /** 00312 * @} 00313 */ 00314 00315 #ifdef __cplusplus 00316 } 00317 #endif 00318 00319 #endif /* __STM32756G_EVAL_AUDIO_H */ 00320 00321 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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