bugfixes and reduced version for disco board only
Dependents: Scope DISCO-F746NG_Sinewave DISCO-F746NG_Sweep DISCO-F746NG_Oscilloscope ... more
Fork of BSP_DISCO_F746NG_patch by
stm32746g_discovery_audio.c@4:0094f74cb733, 2016-01-17 (annotated)
- Committer:
- the_sz
- Date:
- Sun Jan 17 14:36:00 2016 +0000
- Revision:
- 4:0094f74cb733
- Parent:
- 1:e8fac4061a5b
audio irq handler added
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
NirT | 1:e8fac4061a5b | 1 | /** |
NirT | 1:e8fac4061a5b | 2 | ****************************************************************************** |
NirT | 1:e8fac4061a5b | 3 | * @file stm32746g_discovery_audio.c |
NirT | 1:e8fac4061a5b | 4 | * @author MCD Application Team |
NirT | 1:e8fac4061a5b | 5 | * @version V1.0.0 |
NirT | 1:e8fac4061a5b | 6 | * @date 25-June-2015 |
NirT | 1:e8fac4061a5b | 7 | * @brief This file provides the Audio driver for the STM32746G-Discovery board. |
NirT | 1:e8fac4061a5b | 8 | @verbatim |
NirT | 1:e8fac4061a5b | 9 | How To use this driver: |
NirT | 1:e8fac4061a5b | 10 | ----------------------- |
NirT | 1:e8fac4061a5b | 11 | + This driver supports STM32F7xx devices on STM32746G-Discovery (MB1191) board. |
NirT | 1:e8fac4061a5b | 12 | + Call the function BSP_AUDIO_OUT_Init( |
NirT | 1:e8fac4061a5b | 13 | OutputDevice: physical output mode (OUTPUT_DEVICE_SPEAKER, |
NirT | 1:e8fac4061a5b | 14 | OUTPUT_DEVICE_HEADPHONE or OUTPUT_DEVICE_BOTH) |
NirT | 1:e8fac4061a5b | 15 | Volume : Initial volume to be set (0 is min (mute), 100 is max (100%) |
NirT | 1:e8fac4061a5b | 16 | AudioFreq : Audio frequency in Hz (8000, 16000, 22500, 32000...) |
NirT | 1:e8fac4061a5b | 17 | this parameter is relative to the audio file/stream type. |
NirT | 1:e8fac4061a5b | 18 | ) |
NirT | 1:e8fac4061a5b | 19 | This function configures all the hardware required for the audio application (codec, I2C, SAI, |
NirT | 1:e8fac4061a5b | 20 | GPIOs, DMA and interrupt if needed). This function returns AUDIO_OK if configuration is OK. |
NirT | 1:e8fac4061a5b | 21 | If the returned value is different from AUDIO_OK or the function is stuck then the communication with |
NirT | 1:e8fac4061a5b | 22 | the codec or the MFX has failed (try to un-plug the power or reset device in this case). |
NirT | 1:e8fac4061a5b | 23 | - OUTPUT_DEVICE_SPEAKER : only speaker will be set as output for the audio stream. |
NirT | 1:e8fac4061a5b | 24 | - OUTPUT_DEVICE_HEADPHONE: only headphones will be set as output for the audio stream. |
NirT | 1:e8fac4061a5b | 25 | - OUTPUT_DEVICE_BOTH : both Speaker and Headphone are used as outputs for the audio stream |
NirT | 1:e8fac4061a5b | 26 | at the same time. |
NirT | 1:e8fac4061a5b | 27 | Note. On STM32746G-Discovery SAI_DMA is configured in CIRCULAR mode. Due to this the application |
NirT | 1:e8fac4061a5b | 28 | does NOT need to call BSP_AUDIO_OUT_ChangeBuffer() to assure streaming. |
NirT | 1:e8fac4061a5b | 29 | + Call the function BSP_DISCOVERY_AUDIO_OUT_Play( |
NirT | 1:e8fac4061a5b | 30 | pBuffer: pointer to the audio data file address |
NirT | 1:e8fac4061a5b | 31 | Size : size of the buffer to be sent in Bytes |
NirT | 1:e8fac4061a5b | 32 | ) |
NirT | 1:e8fac4061a5b | 33 | to start playing (for the first time) from the audio file/stream. |
NirT | 1:e8fac4061a5b | 34 | + Call the function BSP_AUDIO_OUT_Pause() to pause playing |
NirT | 1:e8fac4061a5b | 35 | + Call the function BSP_AUDIO_OUT_Resume() to resume playing. |
NirT | 1:e8fac4061a5b | 36 | Note. After calling BSP_AUDIO_OUT_Pause() function for pause, only BSP_AUDIO_OUT_Resume() should be called |
NirT | 1:e8fac4061a5b | 37 | for resume (it is not allowed to call BSP_AUDIO_OUT_Play() in this case). |
NirT | 1:e8fac4061a5b | 38 | Note. This function should be called only when the audio file is played or paused (not stopped). |
NirT | 1:e8fac4061a5b | 39 | + For each mode, you may need to implement the relative callback functions into your code. |
NirT | 1:e8fac4061a5b | 40 | The Callback functions are named AUDIO_OUT_XXX_CallBack() and only their prototypes are declared in |
NirT | 1:e8fac4061a5b | 41 | the stm32746g_discovery_audio.h file. (refer to the example for more details on the callbacks implementations) |
NirT | 1:e8fac4061a5b | 42 | + To Stop playing, to modify the volume level, the frequency, the audio frame slot, |
NirT | 1:e8fac4061a5b | 43 | the device output mode the mute or the stop, use the functions: BSP_AUDIO_OUT_SetVolume(), |
NirT | 1:e8fac4061a5b | 44 | AUDIO_OUT_SetFrequency(), BSP_AUDIO_OUT_SetAudioFrameSlot(), BSP_AUDIO_OUT_SetOutputMode(), |
NirT | 1:e8fac4061a5b | 45 | BSP_AUDIO_OUT_SetMute() and BSP_AUDIO_OUT_Stop(). |
NirT | 1:e8fac4061a5b | 46 | + The driver API and the callback functions are at the end of the stm32746g_discovery_audio.h file. |
NirT | 1:e8fac4061a5b | 47 | |
NirT | 1:e8fac4061a5b | 48 | Driver architecture: |
NirT | 1:e8fac4061a5b | 49 | -------------------- |
NirT | 1:e8fac4061a5b | 50 | + This driver provides the High Audio Layer: consists of the function API exported in the stm32746g_discovery_audio.h file |
NirT | 1:e8fac4061a5b | 51 | (BSP_AUDIO_OUT_Init(), BSP_AUDIO_OUT_Play() ...) |
NirT | 1:e8fac4061a5b | 52 | + This driver provide also the Media Access Layer (MAL): which consists of functions allowing to access the media containing/ |
NirT | 1:e8fac4061a5b | 53 | providing the audio file/stream. These functions are also included as local functions into |
NirT | 1:e8fac4061a5b | 54 | the stm32746g_discovery_audio_codec.c file (SAIx_Out_Init() and SAIx_Out_DeInit(), SAIx_In_Init() and SAIx_In_DeInit()) |
NirT | 1:e8fac4061a5b | 55 | |
NirT | 1:e8fac4061a5b | 56 | Known Limitations: |
NirT | 1:e8fac4061a5b | 57 | ------------------ |
NirT | 1:e8fac4061a5b | 58 | 1- If the TDM Format used to play in parallel 2 audio Stream (the first Stream is configured in codec SLOT0 and second |
NirT | 1:e8fac4061a5b | 59 | Stream in SLOT1) the Pause/Resume, volume and mute feature will control the both streams. |
NirT | 1:e8fac4061a5b | 60 | 2- Parsing of audio file is not implemented (in order to determine audio file properties: Mono/Stereo, Data size, |
NirT | 1:e8fac4061a5b | 61 | File size, Audio Frequency, Audio Data header size ...). The configuration is fixed for the given audio file. |
NirT | 1:e8fac4061a5b | 62 | 3- Supports only Stereo audio streaming. |
NirT | 1:e8fac4061a5b | 63 | 4- Supports only 16-bits audio data size. |
NirT | 1:e8fac4061a5b | 64 | @endverbatim |
NirT | 1:e8fac4061a5b | 65 | ****************************************************************************** |
NirT | 1:e8fac4061a5b | 66 | * @attention |
NirT | 1:e8fac4061a5b | 67 | * |
NirT | 1:e8fac4061a5b | 68 | * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> |
NirT | 1:e8fac4061a5b | 69 | * |
NirT | 1:e8fac4061a5b | 70 | * Redistribution and use in source and binary forms, with or without modification, |
NirT | 1:e8fac4061a5b | 71 | * are permitted provided that the following conditions are met: |
NirT | 1:e8fac4061a5b | 72 | * 1. Redistributions of source code must retain the above copyright notice, |
NirT | 1:e8fac4061a5b | 73 | * this list of conditions and the following disclaimer. |
NirT | 1:e8fac4061a5b | 74 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
NirT | 1:e8fac4061a5b | 75 | * this list of conditions and the following disclaimer in the documentation |
NirT | 1:e8fac4061a5b | 76 | * and/or other materials provided with the distribution. |
NirT | 1:e8fac4061a5b | 77 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
NirT | 1:e8fac4061a5b | 78 | * may be used to endorse or promote products derived from this software |
NirT | 1:e8fac4061a5b | 79 | * without specific prior written permission. |
NirT | 1:e8fac4061a5b | 80 | * |
NirT | 1:e8fac4061a5b | 81 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
NirT | 1:e8fac4061a5b | 82 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
NirT | 1:e8fac4061a5b | 83 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
NirT | 1:e8fac4061a5b | 84 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
NirT | 1:e8fac4061a5b | 85 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
NirT | 1:e8fac4061a5b | 86 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
NirT | 1:e8fac4061a5b | 87 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
NirT | 1:e8fac4061a5b | 88 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
NirT | 1:e8fac4061a5b | 89 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
NirT | 1:e8fac4061a5b | 90 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
NirT | 1:e8fac4061a5b | 91 | * |
NirT | 1:e8fac4061a5b | 92 | ****************************************************************************** |
NirT | 1:e8fac4061a5b | 93 | */ |
NirT | 1:e8fac4061a5b | 94 | |
NirT | 1:e8fac4061a5b | 95 | /* Includes ------------------------------------------------------------------*/ |
NirT | 1:e8fac4061a5b | 96 | #include "stm32746g_discovery_audio.h" |
NirT | 1:e8fac4061a5b | 97 | |
NirT | 1:e8fac4061a5b | 98 | /** @addtogroup BSP |
NirT | 1:e8fac4061a5b | 99 | * @{ |
NirT | 1:e8fac4061a5b | 100 | */ |
NirT | 1:e8fac4061a5b | 101 | |
NirT | 1:e8fac4061a5b | 102 | /** @addtogroup STM32746G_DISCOVERY |
NirT | 1:e8fac4061a5b | 103 | * @{ |
NirT | 1:e8fac4061a5b | 104 | */ |
NirT | 1:e8fac4061a5b | 105 | |
NirT | 1:e8fac4061a5b | 106 | /** @defgroup STM32746G_DISCOVERY_AUDIO STM32746G_DISCOVERY AUDIO |
NirT | 1:e8fac4061a5b | 107 | * @brief This file includes the low layer driver for wm8994 Audio Codec |
NirT | 1:e8fac4061a5b | 108 | * available on STM32746G-Discovery board(MB1191). |
NirT | 1:e8fac4061a5b | 109 | * @{ |
NirT | 1:e8fac4061a5b | 110 | */ |
NirT | 1:e8fac4061a5b | 111 | |
NirT | 1:e8fac4061a5b | 112 | /** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Types STM32746G_DISCOVERY AUDIO Private Types |
NirT | 1:e8fac4061a5b | 113 | * @{ |
NirT | 1:e8fac4061a5b | 114 | */ |
NirT | 1:e8fac4061a5b | 115 | /** |
NirT | 1:e8fac4061a5b | 116 | * @} |
NirT | 1:e8fac4061a5b | 117 | */ |
NirT | 1:e8fac4061a5b | 118 | |
NirT | 1:e8fac4061a5b | 119 | /** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Defines STM32746G_DISCOVERY AUDIO Private Defines |
NirT | 1:e8fac4061a5b | 120 | * @{ |
NirT | 1:e8fac4061a5b | 121 | */ |
NirT | 1:e8fac4061a5b | 122 | /** |
NirT | 1:e8fac4061a5b | 123 | * @} |
NirT | 1:e8fac4061a5b | 124 | */ |
NirT | 1:e8fac4061a5b | 125 | |
NirT | 1:e8fac4061a5b | 126 | /** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Macros STM32746G_DISCOVERY AUDIO Private Macros |
NirT | 1:e8fac4061a5b | 127 | * @{ |
NirT | 1:e8fac4061a5b | 128 | */ |
NirT | 1:e8fac4061a5b | 129 | /** |
NirT | 1:e8fac4061a5b | 130 | * @} |
NirT | 1:e8fac4061a5b | 131 | */ |
NirT | 1:e8fac4061a5b | 132 | |
NirT | 1:e8fac4061a5b | 133 | /** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Variables STM32746G_DISCOVERY AUDIO Private Variables |
NirT | 1:e8fac4061a5b | 134 | * @{ |
NirT | 1:e8fac4061a5b | 135 | */ |
NirT | 1:e8fac4061a5b | 136 | AUDIO_DrvTypeDef *audio_drv; |
NirT | 1:e8fac4061a5b | 137 | SAI_HandleTypeDef haudio_out_sai={0}; |
NirT | 1:e8fac4061a5b | 138 | SAI_HandleTypeDef haudio_in_sai={0}; |
NirT | 1:e8fac4061a5b | 139 | TIM_HandleTypeDef haudio_tim; |
NirT | 1:e8fac4061a5b | 140 | |
NirT | 1:e8fac4061a5b | 141 | uint16_t __IO AudioInVolume = DEFAULT_AUDIO_IN_VOLUME; |
NirT | 1:e8fac4061a5b | 142 | |
NirT | 1:e8fac4061a5b | 143 | /** |
NirT | 1:e8fac4061a5b | 144 | * @} |
NirT | 1:e8fac4061a5b | 145 | */ |
NirT | 1:e8fac4061a5b | 146 | |
NirT | 1:e8fac4061a5b | 147 | /** @defgroup STM32746G_DISCOVERY_AUDIO_Private_Function_Prototypes STM32746G_DISCOVERY AUDIO Private Function Prototypes |
NirT | 1:e8fac4061a5b | 148 | * @{ |
NirT | 1:e8fac4061a5b | 149 | */ |
NirT | 1:e8fac4061a5b | 150 | static void SAIx_Out_Init(uint32_t AudioFreq); |
NirT | 1:e8fac4061a5b | 151 | static void SAIx_Out_DeInit(void); |
NirT | 1:e8fac4061a5b | 152 | static void SAIx_In_Init(uint32_t SaiOutMode, uint32_t SlotActive, uint32_t AudioFreq); |
NirT | 1:e8fac4061a5b | 153 | static void SAIx_In_DeInit(void); |
NirT | 1:e8fac4061a5b | 154 | /** |
NirT | 1:e8fac4061a5b | 155 | * @} |
NirT | 1:e8fac4061a5b | 156 | */ |
NirT | 1:e8fac4061a5b | 157 | |
NirT | 1:e8fac4061a5b | 158 | /** @defgroup STM32746G_DISCOVERY_AUDIO_OUT_Exported_Functions STM32746G_DISCOVERY AUDIO Out Exported Functions |
NirT | 1:e8fac4061a5b | 159 | * @{ |
NirT | 1:e8fac4061a5b | 160 | */ |
NirT | 1:e8fac4061a5b | 161 | |
NirT | 1:e8fac4061a5b | 162 | /** |
NirT | 1:e8fac4061a5b | 163 | * @brief Configures the audio peripherals. |
NirT | 1:e8fac4061a5b | 164 | * @param OutputDevice: OUTPUT_DEVICE_SPEAKER, OUTPUT_DEVICE_HEADPHONE, |
NirT | 1:e8fac4061a5b | 165 | * or OUTPUT_DEVICE_BOTH. |
NirT | 1:e8fac4061a5b | 166 | * @param Volume: Initial volume level (from 0 (Mute) to 100 (Max)) |
NirT | 1:e8fac4061a5b | 167 | * @param AudioFreq: Audio frequency used to play the audio stream. |
NirT | 1:e8fac4061a5b | 168 | * @note The I2S PLL input clock must be done in the user application. |
NirT | 1:e8fac4061a5b | 169 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 170 | */ |
NirT | 1:e8fac4061a5b | 171 | uint8_t BSP_AUDIO_OUT_Init(uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq) |
NirT | 1:e8fac4061a5b | 172 | { |
NirT | 1:e8fac4061a5b | 173 | uint8_t ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 174 | uint32_t deviceid = 0x00; |
NirT | 1:e8fac4061a5b | 175 | |
NirT | 1:e8fac4061a5b | 176 | /* Disable SAI */ |
NirT | 1:e8fac4061a5b | 177 | SAIx_Out_DeInit(); |
NirT | 1:e8fac4061a5b | 178 | |
NirT | 1:e8fac4061a5b | 179 | /* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */ |
NirT | 1:e8fac4061a5b | 180 | BSP_AUDIO_OUT_ClockConfig(&haudio_out_sai, AudioFreq, NULL); |
NirT | 1:e8fac4061a5b | 181 | |
NirT | 1:e8fac4061a5b | 182 | /* SAI data transfer preparation: |
NirT | 1:e8fac4061a5b | 183 | Prepare the Media to be used for the audio transfer from memory to SAI peripheral */ |
NirT | 1:e8fac4061a5b | 184 | haudio_out_sai.Instance = AUDIO_OUT_SAIx; |
NirT | 1:e8fac4061a5b | 185 | if(HAL_SAI_GetState(&haudio_out_sai) == HAL_SAI_STATE_RESET) |
NirT | 1:e8fac4061a5b | 186 | { |
NirT | 1:e8fac4061a5b | 187 | /* Init the SAI MSP: this __weak function can be redefined by the application*/ |
NirT | 1:e8fac4061a5b | 188 | BSP_AUDIO_OUT_MspInit(&haudio_out_sai, NULL); |
NirT | 1:e8fac4061a5b | 189 | } |
NirT | 1:e8fac4061a5b | 190 | SAIx_Out_Init(AudioFreq); |
NirT | 1:e8fac4061a5b | 191 | |
NirT | 1:e8fac4061a5b | 192 | /* wm8994 codec initialization */ |
NirT | 1:e8fac4061a5b | 193 | deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS); |
NirT | 1:e8fac4061a5b | 194 | |
NirT | 1:e8fac4061a5b | 195 | if((deviceid) == WM8994_ID) |
NirT | 1:e8fac4061a5b | 196 | { |
NirT | 1:e8fac4061a5b | 197 | /* Reset the Codec Registers */ |
NirT | 1:e8fac4061a5b | 198 | wm8994_drv.Reset(AUDIO_I2C_ADDRESS); |
NirT | 1:e8fac4061a5b | 199 | /* Initialize the audio driver structure */ |
NirT | 1:e8fac4061a5b | 200 | audio_drv = &wm8994_drv; |
NirT | 1:e8fac4061a5b | 201 | ret = AUDIO_OK; |
NirT | 1:e8fac4061a5b | 202 | } |
NirT | 1:e8fac4061a5b | 203 | else |
NirT | 1:e8fac4061a5b | 204 | { |
NirT | 1:e8fac4061a5b | 205 | ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 206 | } |
NirT | 1:e8fac4061a5b | 207 | |
NirT | 1:e8fac4061a5b | 208 | if(ret == AUDIO_OK) |
NirT | 1:e8fac4061a5b | 209 | { |
NirT | 1:e8fac4061a5b | 210 | /* Initialize the codec internal registers */ |
NirT | 1:e8fac4061a5b | 211 | audio_drv->Init(AUDIO_I2C_ADDRESS, OutputDevice, Volume, AudioFreq); |
NirT | 1:e8fac4061a5b | 212 | } |
NirT | 1:e8fac4061a5b | 213 | |
NirT | 1:e8fac4061a5b | 214 | return ret; |
NirT | 1:e8fac4061a5b | 215 | } |
NirT | 1:e8fac4061a5b | 216 | |
NirT | 1:e8fac4061a5b | 217 | /** |
NirT | 1:e8fac4061a5b | 218 | * @brief Starts playing audio stream from a data buffer for a determined size. |
NirT | 1:e8fac4061a5b | 219 | * @param pBuffer: Pointer to the buffer |
NirT | 1:e8fac4061a5b | 220 | * @param Size: Number of audio data in BYTES unit. |
NirT | 1:e8fac4061a5b | 221 | * In memory, first element is for left channel, second element is for right channel |
NirT | 1:e8fac4061a5b | 222 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 223 | */ |
NirT | 1:e8fac4061a5b | 224 | uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size) |
NirT | 1:e8fac4061a5b | 225 | { |
NirT | 1:e8fac4061a5b | 226 | /* Call the audio Codec Play function */ |
NirT | 1:e8fac4061a5b | 227 | if(audio_drv->Play(AUDIO_I2C_ADDRESS, pBuffer, Size) != 0) |
NirT | 1:e8fac4061a5b | 228 | { |
NirT | 1:e8fac4061a5b | 229 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 230 | } |
NirT | 1:e8fac4061a5b | 231 | else |
NirT | 1:e8fac4061a5b | 232 | { |
NirT | 1:e8fac4061a5b | 233 | /* Update the Media layer and enable it for play */ |
NirT | 1:e8fac4061a5b | 234 | HAL_SAI_Transmit_DMA(&haudio_out_sai, (uint8_t*) pBuffer, DMA_MAX(Size / AUDIODATA_SIZE)); |
NirT | 1:e8fac4061a5b | 235 | |
NirT | 1:e8fac4061a5b | 236 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 237 | } |
NirT | 1:e8fac4061a5b | 238 | } |
NirT | 1:e8fac4061a5b | 239 | |
NirT | 1:e8fac4061a5b | 240 | /** |
NirT | 1:e8fac4061a5b | 241 | * @brief Sends n-Bytes on the SAI interface. |
NirT | 1:e8fac4061a5b | 242 | * @param pData: pointer on data address |
NirT | 1:e8fac4061a5b | 243 | * @param Size: number of data to be written |
NirT | 1:e8fac4061a5b | 244 | * @retval None |
NirT | 1:e8fac4061a5b | 245 | */ |
NirT | 1:e8fac4061a5b | 246 | void BSP_AUDIO_OUT_ChangeBuffer(uint16_t *pData, uint16_t Size) |
NirT | 1:e8fac4061a5b | 247 | { |
NirT | 1:e8fac4061a5b | 248 | HAL_SAI_Transmit_DMA(&haudio_out_sai, (uint8_t*) pData, Size); |
NirT | 1:e8fac4061a5b | 249 | } |
NirT | 1:e8fac4061a5b | 250 | |
NirT | 1:e8fac4061a5b | 251 | /** |
NirT | 1:e8fac4061a5b | 252 | * @brief This function Pauses the audio file stream. In case |
NirT | 1:e8fac4061a5b | 253 | * of using DMA, the DMA Pause feature is used. |
NirT | 1:e8fac4061a5b | 254 | * @note When calling BSP_AUDIO_OUT_Pause() function for pause, only |
NirT | 1:e8fac4061a5b | 255 | * BSP_AUDIO_OUT_Resume() function should be called for resume (use of BSP_AUDIO_OUT_Play() |
NirT | 1:e8fac4061a5b | 256 | * function for resume could lead to unexpected behaviour). |
NirT | 1:e8fac4061a5b | 257 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 258 | */ |
NirT | 1:e8fac4061a5b | 259 | uint8_t BSP_AUDIO_OUT_Pause(void) |
NirT | 1:e8fac4061a5b | 260 | { |
NirT | 1:e8fac4061a5b | 261 | /* Call the Audio Codec Pause/Resume function */ |
NirT | 1:e8fac4061a5b | 262 | if(audio_drv->Pause(AUDIO_I2C_ADDRESS) != 0) |
NirT | 1:e8fac4061a5b | 263 | { |
NirT | 1:e8fac4061a5b | 264 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 265 | } |
NirT | 1:e8fac4061a5b | 266 | else |
NirT | 1:e8fac4061a5b | 267 | { |
NirT | 1:e8fac4061a5b | 268 | /* Call the Media layer pause function */ |
NirT | 1:e8fac4061a5b | 269 | HAL_SAI_DMAPause(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 270 | |
NirT | 1:e8fac4061a5b | 271 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 272 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 273 | } |
NirT | 1:e8fac4061a5b | 274 | } |
NirT | 1:e8fac4061a5b | 275 | |
NirT | 1:e8fac4061a5b | 276 | /** |
NirT | 1:e8fac4061a5b | 277 | * @brief This function Resumes the audio file stream. |
NirT | 1:e8fac4061a5b | 278 | * @note When calling BSP_AUDIO_OUT_Pause() function for pause, only |
NirT | 1:e8fac4061a5b | 279 | * BSP_AUDIO_OUT_Resume() function should be called for resume (use of BSP_AUDIO_OUT_Play() |
NirT | 1:e8fac4061a5b | 280 | * function for resume could lead to unexpected behaviour). |
NirT | 1:e8fac4061a5b | 281 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 282 | */ |
NirT | 1:e8fac4061a5b | 283 | uint8_t BSP_AUDIO_OUT_Resume(void) |
NirT | 1:e8fac4061a5b | 284 | { |
NirT | 1:e8fac4061a5b | 285 | /* Call the Audio Codec Pause/Resume function */ |
NirT | 1:e8fac4061a5b | 286 | if(audio_drv->Resume(AUDIO_I2C_ADDRESS) != 0) |
NirT | 1:e8fac4061a5b | 287 | { |
NirT | 1:e8fac4061a5b | 288 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 289 | } |
NirT | 1:e8fac4061a5b | 290 | else |
NirT | 1:e8fac4061a5b | 291 | { |
NirT | 1:e8fac4061a5b | 292 | /* Call the Media layer pause/resume function */ |
NirT | 1:e8fac4061a5b | 293 | HAL_SAI_DMAResume(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 294 | |
NirT | 1:e8fac4061a5b | 295 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 296 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 297 | } |
NirT | 1:e8fac4061a5b | 298 | } |
NirT | 1:e8fac4061a5b | 299 | |
NirT | 1:e8fac4061a5b | 300 | /** |
NirT | 1:e8fac4061a5b | 301 | * @brief Stops audio playing and Power down the Audio Codec. |
NirT | 1:e8fac4061a5b | 302 | * @param Option: could be one of the following parameters |
NirT | 1:e8fac4061a5b | 303 | * - CODEC_PDWN_SW: for software power off (by writing registers). |
NirT | 1:e8fac4061a5b | 304 | * Then no need to reconfigure the Codec after power on. |
NirT | 1:e8fac4061a5b | 305 | * - CODEC_PDWN_HW: completely shut down the codec (physically). |
NirT | 1:e8fac4061a5b | 306 | * Then need to reconfigure the Codec after power on. |
NirT | 1:e8fac4061a5b | 307 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 308 | */ |
NirT | 1:e8fac4061a5b | 309 | uint8_t BSP_AUDIO_OUT_Stop(uint32_t Option) |
NirT | 1:e8fac4061a5b | 310 | { |
NirT | 1:e8fac4061a5b | 311 | /* Call the Media layer stop function */ |
NirT | 1:e8fac4061a5b | 312 | HAL_SAI_DMAStop(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 313 | |
NirT | 1:e8fac4061a5b | 314 | /* Call Audio Codec Stop function */ |
NirT | 1:e8fac4061a5b | 315 | if(audio_drv->Stop(AUDIO_I2C_ADDRESS, Option) != 0) |
NirT | 1:e8fac4061a5b | 316 | { |
NirT | 1:e8fac4061a5b | 317 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 318 | } |
NirT | 1:e8fac4061a5b | 319 | else |
NirT | 1:e8fac4061a5b | 320 | { |
NirT | 1:e8fac4061a5b | 321 | if(Option == CODEC_PDWN_HW) |
NirT | 1:e8fac4061a5b | 322 | { |
NirT | 1:e8fac4061a5b | 323 | /* Wait at least 100us */ |
NirT | 1:e8fac4061a5b | 324 | HAL_Delay(1); |
NirT | 1:e8fac4061a5b | 325 | } |
NirT | 1:e8fac4061a5b | 326 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 327 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 328 | } |
NirT | 1:e8fac4061a5b | 329 | } |
NirT | 1:e8fac4061a5b | 330 | |
NirT | 1:e8fac4061a5b | 331 | /** |
NirT | 1:e8fac4061a5b | 332 | * @brief Controls the current audio volume level. |
NirT | 1:e8fac4061a5b | 333 | * @param Volume: Volume level to be set in percentage from 0% to 100% (0 for |
NirT | 1:e8fac4061a5b | 334 | * Mute and 100 for Max volume level). |
NirT | 1:e8fac4061a5b | 335 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 336 | */ |
NirT | 1:e8fac4061a5b | 337 | uint8_t BSP_AUDIO_OUT_SetVolume(uint8_t Volume) |
NirT | 1:e8fac4061a5b | 338 | { |
NirT | 1:e8fac4061a5b | 339 | /* Call the codec volume control function with converted volume value */ |
NirT | 1:e8fac4061a5b | 340 | if(audio_drv->SetVolume(AUDIO_I2C_ADDRESS, Volume) != 0) |
NirT | 1:e8fac4061a5b | 341 | { |
NirT | 1:e8fac4061a5b | 342 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 343 | } |
NirT | 1:e8fac4061a5b | 344 | else |
NirT | 1:e8fac4061a5b | 345 | { |
NirT | 1:e8fac4061a5b | 346 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 347 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 348 | } |
NirT | 1:e8fac4061a5b | 349 | } |
NirT | 1:e8fac4061a5b | 350 | |
NirT | 1:e8fac4061a5b | 351 | /** |
NirT | 1:e8fac4061a5b | 352 | * @brief Enables or disables the MUTE mode by software |
NirT | 1:e8fac4061a5b | 353 | * @param Cmd: Could be AUDIO_MUTE_ON to mute sound or AUDIO_MUTE_OFF to |
NirT | 1:e8fac4061a5b | 354 | * unmute the codec and restore previous volume level. |
NirT | 1:e8fac4061a5b | 355 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 356 | */ |
NirT | 1:e8fac4061a5b | 357 | uint8_t BSP_AUDIO_OUT_SetMute(uint32_t Cmd) |
NirT | 1:e8fac4061a5b | 358 | { |
NirT | 1:e8fac4061a5b | 359 | /* Call the Codec Mute function */ |
NirT | 1:e8fac4061a5b | 360 | if(audio_drv->SetMute(AUDIO_I2C_ADDRESS, Cmd) != 0) |
NirT | 1:e8fac4061a5b | 361 | { |
NirT | 1:e8fac4061a5b | 362 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 363 | } |
NirT | 1:e8fac4061a5b | 364 | else |
NirT | 1:e8fac4061a5b | 365 | { |
NirT | 1:e8fac4061a5b | 366 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 367 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 368 | } |
NirT | 1:e8fac4061a5b | 369 | } |
NirT | 1:e8fac4061a5b | 370 | |
NirT | 1:e8fac4061a5b | 371 | /** |
NirT | 1:e8fac4061a5b | 372 | * @brief Switch dynamically (while audio file is played) the output target |
NirT | 1:e8fac4061a5b | 373 | * (speaker or headphone). |
NirT | 1:e8fac4061a5b | 374 | * @param Output: The audio output target: OUTPUT_DEVICE_SPEAKER, |
NirT | 1:e8fac4061a5b | 375 | * OUTPUT_DEVICE_HEADPHONE or OUTPUT_DEVICE_BOTH |
NirT | 1:e8fac4061a5b | 376 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 377 | */ |
NirT | 1:e8fac4061a5b | 378 | uint8_t BSP_AUDIO_OUT_SetOutputMode(uint8_t Output) |
NirT | 1:e8fac4061a5b | 379 | { |
NirT | 1:e8fac4061a5b | 380 | /* Call the Codec output device function */ |
NirT | 1:e8fac4061a5b | 381 | if(audio_drv->SetOutputMode(AUDIO_I2C_ADDRESS, Output) != 0) |
NirT | 1:e8fac4061a5b | 382 | { |
NirT | 1:e8fac4061a5b | 383 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 384 | } |
NirT | 1:e8fac4061a5b | 385 | else |
NirT | 1:e8fac4061a5b | 386 | { |
NirT | 1:e8fac4061a5b | 387 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 388 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 389 | } |
NirT | 1:e8fac4061a5b | 390 | } |
NirT | 1:e8fac4061a5b | 391 | |
NirT | 1:e8fac4061a5b | 392 | /** |
NirT | 1:e8fac4061a5b | 393 | * @brief Updates the audio frequency. |
NirT | 1:e8fac4061a5b | 394 | * @param AudioFreq: Audio frequency used to play the audio stream. |
NirT | 1:e8fac4061a5b | 395 | * @note This API should be called after the BSP_AUDIO_OUT_Init() to adjust the |
NirT | 1:e8fac4061a5b | 396 | * audio frequency. |
NirT | 1:e8fac4061a5b | 397 | * @retval None |
NirT | 1:e8fac4061a5b | 398 | */ |
NirT | 1:e8fac4061a5b | 399 | void BSP_AUDIO_OUT_SetFrequency(uint32_t AudioFreq) |
NirT | 1:e8fac4061a5b | 400 | { |
NirT | 1:e8fac4061a5b | 401 | /* PLL clock is set depending by the AudioFreq (44.1khz vs 48khz groups) */ |
NirT | 1:e8fac4061a5b | 402 | BSP_AUDIO_OUT_ClockConfig(&haudio_out_sai, AudioFreq, NULL); |
NirT | 1:e8fac4061a5b | 403 | |
NirT | 1:e8fac4061a5b | 404 | /* Disable SAI peripheral to allow access to SAI internal registers */ |
NirT | 1:e8fac4061a5b | 405 | __HAL_SAI_DISABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 406 | |
NirT | 1:e8fac4061a5b | 407 | /* Update the SAI audio frequency configuration */ |
NirT | 1:e8fac4061a5b | 408 | haudio_out_sai.Init.AudioFrequency = AudioFreq; |
NirT | 1:e8fac4061a5b | 409 | HAL_SAI_Init(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 410 | |
NirT | 1:e8fac4061a5b | 411 | /* Enable SAI peripheral to generate MCLK */ |
NirT | 1:e8fac4061a5b | 412 | __HAL_SAI_ENABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 413 | } |
NirT | 1:e8fac4061a5b | 414 | |
NirT | 1:e8fac4061a5b | 415 | /** |
NirT | 1:e8fac4061a5b | 416 | * @brief Updates the Audio frame slot configuration. |
NirT | 1:e8fac4061a5b | 417 | * @param AudioFrameSlot: specifies the audio Frame slot |
NirT | 1:e8fac4061a5b | 418 | * This parameter can be one of the following values |
NirT | 1:e8fac4061a5b | 419 | * @arg CODEC_AUDIOFRAME_SLOT_0123 |
NirT | 1:e8fac4061a5b | 420 | * @arg CODEC_AUDIOFRAME_SLOT_02 |
NirT | 1:e8fac4061a5b | 421 | * @arg CODEC_AUDIOFRAME_SLOT_13 |
NirT | 1:e8fac4061a5b | 422 | * @note This API should be called after the BSP_AUDIO_OUT_Init() to adjust the |
NirT | 1:e8fac4061a5b | 423 | * audio frame slot. |
NirT | 1:e8fac4061a5b | 424 | * @retval None |
NirT | 1:e8fac4061a5b | 425 | */ |
NirT | 1:e8fac4061a5b | 426 | void BSP_AUDIO_OUT_SetAudioFrameSlot(uint32_t AudioFrameSlot) |
NirT | 1:e8fac4061a5b | 427 | { |
NirT | 1:e8fac4061a5b | 428 | /* Disable SAI peripheral to allow access to SAI internal registers */ |
NirT | 1:e8fac4061a5b | 429 | __HAL_SAI_DISABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 430 | |
NirT | 1:e8fac4061a5b | 431 | /* Update the SAI audio frame slot configuration */ |
NirT | 1:e8fac4061a5b | 432 | haudio_out_sai.SlotInit.SlotActive = AudioFrameSlot; |
NirT | 1:e8fac4061a5b | 433 | HAL_SAI_Init(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 434 | |
NirT | 1:e8fac4061a5b | 435 | /* Enable SAI peripheral to generate MCLK */ |
NirT | 1:e8fac4061a5b | 436 | __HAL_SAI_ENABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 437 | } |
NirT | 1:e8fac4061a5b | 438 | |
NirT | 1:e8fac4061a5b | 439 | /** |
NirT | 1:e8fac4061a5b | 440 | * @brief Deinit the audio peripherals. |
NirT | 1:e8fac4061a5b | 441 | * @retval None |
NirT | 1:e8fac4061a5b | 442 | */ |
NirT | 1:e8fac4061a5b | 443 | void BSP_AUDIO_OUT_DeInit(void) |
NirT | 1:e8fac4061a5b | 444 | { |
NirT | 1:e8fac4061a5b | 445 | SAIx_Out_DeInit(); |
NirT | 1:e8fac4061a5b | 446 | /* DeInit the SAI MSP : this __weak function can be rewritten by the application */ |
NirT | 1:e8fac4061a5b | 447 | BSP_AUDIO_OUT_MspDeInit(&haudio_out_sai, NULL); |
NirT | 1:e8fac4061a5b | 448 | } |
NirT | 1:e8fac4061a5b | 449 | |
NirT | 1:e8fac4061a5b | 450 | /** |
NirT | 1:e8fac4061a5b | 451 | * @brief Tx Transfer completed callbacks. |
NirT | 1:e8fac4061a5b | 452 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 453 | * @retval None |
NirT | 1:e8fac4061a5b | 454 | */ |
NirT | 1:e8fac4061a5b | 455 | void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai) |
NirT | 1:e8fac4061a5b | 456 | { |
NirT | 1:e8fac4061a5b | 457 | /* Manage the remaining file size and new address offset: This function |
NirT | 1:e8fac4061a5b | 458 | should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */ |
NirT | 1:e8fac4061a5b | 459 | BSP_AUDIO_OUT_TransferComplete_CallBack(); |
NirT | 1:e8fac4061a5b | 460 | } |
NirT | 1:e8fac4061a5b | 461 | |
NirT | 1:e8fac4061a5b | 462 | /** |
NirT | 1:e8fac4061a5b | 463 | * @brief Tx Half Transfer completed callbacks. |
NirT | 1:e8fac4061a5b | 464 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 465 | * @retval None |
NirT | 1:e8fac4061a5b | 466 | */ |
NirT | 1:e8fac4061a5b | 467 | void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai) |
NirT | 1:e8fac4061a5b | 468 | { |
NirT | 1:e8fac4061a5b | 469 | /* Manage the remaining file size and new address offset: This function |
NirT | 1:e8fac4061a5b | 470 | should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */ |
NirT | 1:e8fac4061a5b | 471 | BSP_AUDIO_OUT_HalfTransfer_CallBack(); |
NirT | 1:e8fac4061a5b | 472 | } |
NirT | 1:e8fac4061a5b | 473 | |
NirT | 1:e8fac4061a5b | 474 | /** |
NirT | 1:e8fac4061a5b | 475 | * @brief SAI error callbacks. |
NirT | 1:e8fac4061a5b | 476 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 477 | * @retval None |
NirT | 1:e8fac4061a5b | 478 | */ |
NirT | 1:e8fac4061a5b | 479 | void HAL_SAI_ErrorCallback(SAI_HandleTypeDef *hsai) |
NirT | 1:e8fac4061a5b | 480 | { |
NirT | 1:e8fac4061a5b | 481 | HAL_SAI_StateTypeDef audio_out_state; |
NirT | 1:e8fac4061a5b | 482 | HAL_SAI_StateTypeDef audio_in_state; |
NirT | 1:e8fac4061a5b | 483 | |
NirT | 1:e8fac4061a5b | 484 | audio_out_state = HAL_SAI_GetState(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 485 | audio_in_state = HAL_SAI_GetState(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 486 | |
NirT | 1:e8fac4061a5b | 487 | /* Determines if it is an audio out or audio in error */ |
NirT | 1:e8fac4061a5b | 488 | if ((audio_out_state == HAL_SAI_STATE_BUSY) || (audio_out_state == HAL_SAI_STATE_BUSY_TX) |
NirT | 1:e8fac4061a5b | 489 | || (audio_out_state == HAL_SAI_STATE_TIMEOUT) || (audio_out_state == HAL_SAI_STATE_ERROR)) |
NirT | 1:e8fac4061a5b | 490 | { |
NirT | 1:e8fac4061a5b | 491 | BSP_AUDIO_OUT_Error_CallBack(); |
NirT | 1:e8fac4061a5b | 492 | } |
NirT | 1:e8fac4061a5b | 493 | |
NirT | 1:e8fac4061a5b | 494 | if ((audio_in_state == HAL_SAI_STATE_BUSY) || (audio_in_state == HAL_SAI_STATE_BUSY_RX) |
NirT | 1:e8fac4061a5b | 495 | || (audio_in_state == HAL_SAI_STATE_TIMEOUT) || (audio_in_state == HAL_SAI_STATE_ERROR)) |
NirT | 1:e8fac4061a5b | 496 | { |
NirT | 1:e8fac4061a5b | 497 | BSP_AUDIO_IN_Error_CallBack(); |
NirT | 1:e8fac4061a5b | 498 | } |
NirT | 1:e8fac4061a5b | 499 | } |
NirT | 1:e8fac4061a5b | 500 | |
NirT | 1:e8fac4061a5b | 501 | /** |
NirT | 1:e8fac4061a5b | 502 | * @brief Manages the DMA full Transfer complete event. |
NirT | 1:e8fac4061a5b | 503 | * @retval None |
NirT | 1:e8fac4061a5b | 504 | */ |
NirT | 1:e8fac4061a5b | 505 | __weak void BSP_AUDIO_OUT_TransferComplete_CallBack(void) |
NirT | 1:e8fac4061a5b | 506 | { |
NirT | 1:e8fac4061a5b | 507 | } |
NirT | 1:e8fac4061a5b | 508 | |
NirT | 1:e8fac4061a5b | 509 | /** |
NirT | 1:e8fac4061a5b | 510 | * @brief Manages the DMA Half Transfer complete event. |
NirT | 1:e8fac4061a5b | 511 | * @retval None |
NirT | 1:e8fac4061a5b | 512 | */ |
NirT | 1:e8fac4061a5b | 513 | __weak void BSP_AUDIO_OUT_HalfTransfer_CallBack(void) |
NirT | 1:e8fac4061a5b | 514 | { |
NirT | 1:e8fac4061a5b | 515 | } |
NirT | 1:e8fac4061a5b | 516 | |
NirT | 1:e8fac4061a5b | 517 | /** |
NirT | 1:e8fac4061a5b | 518 | * @brief Manages the DMA FIFO error event. |
NirT | 1:e8fac4061a5b | 519 | * @retval None |
NirT | 1:e8fac4061a5b | 520 | */ |
NirT | 1:e8fac4061a5b | 521 | __weak void BSP_AUDIO_OUT_Error_CallBack(void) |
NirT | 1:e8fac4061a5b | 522 | { |
NirT | 1:e8fac4061a5b | 523 | } |
NirT | 1:e8fac4061a5b | 524 | |
NirT | 1:e8fac4061a5b | 525 | /** |
NirT | 1:e8fac4061a5b | 526 | * @brief Initializes BSP_AUDIO_OUT MSP. |
NirT | 1:e8fac4061a5b | 527 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 528 | * @param Params |
NirT | 1:e8fac4061a5b | 529 | * @retval None |
NirT | 1:e8fac4061a5b | 530 | */ |
NirT | 1:e8fac4061a5b | 531 | __weak void BSP_AUDIO_OUT_MspInit(SAI_HandleTypeDef *hsai, void *Params) |
NirT | 1:e8fac4061a5b | 532 | { |
NirT | 1:e8fac4061a5b | 533 | static DMA_HandleTypeDef hdma_sai_tx; |
NirT | 1:e8fac4061a5b | 534 | GPIO_InitTypeDef gpio_init_structure; |
NirT | 1:e8fac4061a5b | 535 | |
NirT | 1:e8fac4061a5b | 536 | /* Enable SAI clock */ |
NirT | 1:e8fac4061a5b | 537 | AUDIO_OUT_SAIx_CLK_ENABLE(); |
NirT | 1:e8fac4061a5b | 538 | |
NirT | 1:e8fac4061a5b | 539 | /* Enable GPIO clock */ |
NirT | 1:e8fac4061a5b | 540 | AUDIO_OUT_SAIx_MCLK_ENABLE(); |
NirT | 1:e8fac4061a5b | 541 | AUDIO_OUT_SAIx_SCK_SD_ENABLE(); |
NirT | 1:e8fac4061a5b | 542 | AUDIO_OUT_SAIx_FS_ENABLE(); |
NirT | 1:e8fac4061a5b | 543 | /* CODEC_SAI pins configuration: FS, SCK, MCK and SD pins ------------------*/ |
NirT | 1:e8fac4061a5b | 544 | gpio_init_structure.Pin = AUDIO_OUT_SAIx_FS_PIN; |
NirT | 1:e8fac4061a5b | 545 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
NirT | 1:e8fac4061a5b | 546 | gpio_init_structure.Pull = GPIO_NOPULL; |
NirT | 1:e8fac4061a5b | 547 | gpio_init_structure.Speed = GPIO_SPEED_HIGH; |
NirT | 1:e8fac4061a5b | 548 | gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF; |
NirT | 1:e8fac4061a5b | 549 | HAL_GPIO_Init(AUDIO_OUT_SAIx_FS_GPIO_PORT, &gpio_init_structure); |
NirT | 1:e8fac4061a5b | 550 | |
NirT | 1:e8fac4061a5b | 551 | gpio_init_structure.Pin = AUDIO_OUT_SAIx_SCK_PIN; |
NirT | 1:e8fac4061a5b | 552 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
NirT | 1:e8fac4061a5b | 553 | gpio_init_structure.Pull = GPIO_NOPULL; |
NirT | 1:e8fac4061a5b | 554 | gpio_init_structure.Speed = GPIO_SPEED_HIGH; |
NirT | 1:e8fac4061a5b | 555 | gpio_init_structure.Alternate = AUDIO_OUT_SAIx_SCK_AF; |
NirT | 1:e8fac4061a5b | 556 | HAL_GPIO_Init(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, &gpio_init_structure); |
NirT | 1:e8fac4061a5b | 557 | |
NirT | 1:e8fac4061a5b | 558 | gpio_init_structure.Pin = AUDIO_OUT_SAIx_SD_PIN; |
NirT | 1:e8fac4061a5b | 559 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
NirT | 1:e8fac4061a5b | 560 | gpio_init_structure.Pull = GPIO_NOPULL; |
NirT | 1:e8fac4061a5b | 561 | gpio_init_structure.Speed = GPIO_SPEED_HIGH; |
NirT | 1:e8fac4061a5b | 562 | gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF; |
NirT | 1:e8fac4061a5b | 563 | HAL_GPIO_Init(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, &gpio_init_structure); |
NirT | 1:e8fac4061a5b | 564 | |
NirT | 1:e8fac4061a5b | 565 | gpio_init_structure.Pin = AUDIO_OUT_SAIx_MCLK_PIN; |
NirT | 1:e8fac4061a5b | 566 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
NirT | 1:e8fac4061a5b | 567 | gpio_init_structure.Pull = GPIO_NOPULL; |
NirT | 1:e8fac4061a5b | 568 | gpio_init_structure.Speed = GPIO_SPEED_HIGH; |
NirT | 1:e8fac4061a5b | 569 | gpio_init_structure.Alternate = AUDIO_OUT_SAIx_FS_SD_MCLK_AF; |
NirT | 1:e8fac4061a5b | 570 | HAL_GPIO_Init(AUDIO_OUT_SAIx_MCLK_GPIO_PORT, &gpio_init_structure); |
NirT | 1:e8fac4061a5b | 571 | |
NirT | 1:e8fac4061a5b | 572 | /* Enable the DMA clock */ |
NirT | 1:e8fac4061a5b | 573 | AUDIO_OUT_SAIx_DMAx_CLK_ENABLE(); |
NirT | 1:e8fac4061a5b | 574 | |
NirT | 1:e8fac4061a5b | 575 | if(hsai->Instance == AUDIO_OUT_SAIx) |
NirT | 1:e8fac4061a5b | 576 | { |
NirT | 1:e8fac4061a5b | 577 | /* Configure the hdma_saiTx handle parameters */ |
NirT | 1:e8fac4061a5b | 578 | hdma_sai_tx.Init.Channel = AUDIO_OUT_SAIx_DMAx_CHANNEL; |
NirT | 1:e8fac4061a5b | 579 | hdma_sai_tx.Init.Direction = DMA_MEMORY_TO_PERIPH; |
NirT | 1:e8fac4061a5b | 580 | hdma_sai_tx.Init.PeriphInc = DMA_PINC_DISABLE; |
NirT | 1:e8fac4061a5b | 581 | hdma_sai_tx.Init.MemInc = DMA_MINC_ENABLE; |
NirT | 1:e8fac4061a5b | 582 | hdma_sai_tx.Init.PeriphDataAlignment = AUDIO_OUT_SAIx_DMAx_PERIPH_DATA_SIZE; |
NirT | 1:e8fac4061a5b | 583 | hdma_sai_tx.Init.MemDataAlignment = AUDIO_OUT_SAIx_DMAx_MEM_DATA_SIZE; |
NirT | 1:e8fac4061a5b | 584 | hdma_sai_tx.Init.Mode = DMA_CIRCULAR; |
NirT | 1:e8fac4061a5b | 585 | hdma_sai_tx.Init.Priority = DMA_PRIORITY_HIGH; |
NirT | 1:e8fac4061a5b | 586 | hdma_sai_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE; |
NirT | 1:e8fac4061a5b | 587 | hdma_sai_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; |
NirT | 1:e8fac4061a5b | 588 | hdma_sai_tx.Init.MemBurst = DMA_MBURST_SINGLE; |
NirT | 1:e8fac4061a5b | 589 | hdma_sai_tx.Init.PeriphBurst = DMA_PBURST_SINGLE; |
NirT | 1:e8fac4061a5b | 590 | |
NirT | 1:e8fac4061a5b | 591 | hdma_sai_tx.Instance = AUDIO_OUT_SAIx_DMAx_STREAM; |
NirT | 1:e8fac4061a5b | 592 | |
NirT | 1:e8fac4061a5b | 593 | /* Associate the DMA handle */ |
NirT | 1:e8fac4061a5b | 594 | __HAL_LINKDMA(hsai, hdmatx, hdma_sai_tx); |
NirT | 1:e8fac4061a5b | 595 | |
NirT | 1:e8fac4061a5b | 596 | /* Deinitialize the Stream for new transfer */ |
NirT | 1:e8fac4061a5b | 597 | HAL_DMA_DeInit(&hdma_sai_tx); |
NirT | 1:e8fac4061a5b | 598 | |
NirT | 1:e8fac4061a5b | 599 | /* Configure the DMA Stream */ |
NirT | 1:e8fac4061a5b | 600 | HAL_DMA_Init(&hdma_sai_tx); |
NirT | 1:e8fac4061a5b | 601 | } |
NirT | 1:e8fac4061a5b | 602 | |
NirT | 1:e8fac4061a5b | 603 | /* SAI DMA IRQ Channel configuration */ |
NirT | 1:e8fac4061a5b | 604 | HAL_NVIC_SetPriority(AUDIO_OUT_SAIx_DMAx_IRQ, AUDIO_OUT_IRQ_PREPRIO, 0); |
NirT | 1:e8fac4061a5b | 605 | HAL_NVIC_EnableIRQ(AUDIO_OUT_SAIx_DMAx_IRQ); |
NirT | 1:e8fac4061a5b | 606 | } |
NirT | 1:e8fac4061a5b | 607 | |
NirT | 1:e8fac4061a5b | 608 | /** |
NirT | 1:e8fac4061a5b | 609 | * @brief Deinitializes SAI MSP. |
NirT | 1:e8fac4061a5b | 610 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 611 | * @param Params |
NirT | 1:e8fac4061a5b | 612 | * @retval None |
NirT | 1:e8fac4061a5b | 613 | */ |
NirT | 1:e8fac4061a5b | 614 | __weak void BSP_AUDIO_OUT_MspDeInit(SAI_HandleTypeDef *hsai, void *Params) |
NirT | 1:e8fac4061a5b | 615 | { |
NirT | 1:e8fac4061a5b | 616 | GPIO_InitTypeDef gpio_init_structure; |
NirT | 1:e8fac4061a5b | 617 | |
NirT | 1:e8fac4061a5b | 618 | /* SAI DMA IRQ Channel deactivation */ |
NirT | 1:e8fac4061a5b | 619 | HAL_NVIC_DisableIRQ(AUDIO_OUT_SAIx_DMAx_IRQ); |
NirT | 1:e8fac4061a5b | 620 | |
NirT | 1:e8fac4061a5b | 621 | if(hsai->Instance == AUDIO_OUT_SAIx) |
NirT | 1:e8fac4061a5b | 622 | { |
NirT | 1:e8fac4061a5b | 623 | /* Deinitialize the DMA stream */ |
NirT | 1:e8fac4061a5b | 624 | HAL_DMA_DeInit(hsai->hdmatx); |
NirT | 1:e8fac4061a5b | 625 | } |
NirT | 1:e8fac4061a5b | 626 | |
NirT | 1:e8fac4061a5b | 627 | /* Disable SAI peripheral */ |
NirT | 1:e8fac4061a5b | 628 | __HAL_SAI_DISABLE(hsai); |
NirT | 1:e8fac4061a5b | 629 | |
NirT | 1:e8fac4061a5b | 630 | /* Deactives CODEC_SAI pins FS, SCK, MCK and SD by putting them in input mode */ |
NirT | 1:e8fac4061a5b | 631 | gpio_init_structure.Pin = AUDIO_OUT_SAIx_FS_PIN; |
NirT | 1:e8fac4061a5b | 632 | HAL_GPIO_DeInit(AUDIO_OUT_SAIx_FS_GPIO_PORT, gpio_init_structure.Pin); |
NirT | 1:e8fac4061a5b | 633 | |
NirT | 1:e8fac4061a5b | 634 | gpio_init_structure.Pin = AUDIO_OUT_SAIx_SCK_PIN; |
NirT | 1:e8fac4061a5b | 635 | HAL_GPIO_DeInit(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, gpio_init_structure.Pin); |
NirT | 1:e8fac4061a5b | 636 | |
NirT | 1:e8fac4061a5b | 637 | gpio_init_structure.Pin = AUDIO_OUT_SAIx_SD_PIN; |
NirT | 1:e8fac4061a5b | 638 | HAL_GPIO_DeInit(AUDIO_OUT_SAIx_SCK_SD_GPIO_PORT, gpio_init_structure.Pin); |
NirT | 1:e8fac4061a5b | 639 | |
NirT | 1:e8fac4061a5b | 640 | gpio_init_structure.Pin = AUDIO_OUT_SAIx_MCLK_PIN; |
NirT | 1:e8fac4061a5b | 641 | HAL_GPIO_DeInit(AUDIO_OUT_SAIx_MCLK_GPIO_PORT, gpio_init_structure.Pin); |
NirT | 1:e8fac4061a5b | 642 | |
NirT | 1:e8fac4061a5b | 643 | /* Disable SAI clock */ |
NirT | 1:e8fac4061a5b | 644 | AUDIO_OUT_SAIx_CLK_DISABLE(); |
NirT | 1:e8fac4061a5b | 645 | |
NirT | 1:e8fac4061a5b | 646 | /* GPIO pins clock and DMA clock can be shut down in the application |
NirT | 1:e8fac4061a5b | 647 | by surcharging this __weak function */ |
NirT | 1:e8fac4061a5b | 648 | } |
NirT | 1:e8fac4061a5b | 649 | |
NirT | 1:e8fac4061a5b | 650 | /** |
NirT | 1:e8fac4061a5b | 651 | * @brief Clock Config. |
NirT | 1:e8fac4061a5b | 652 | * @param hsai: might be required to set audio peripheral predivider if any. |
NirT | 1:e8fac4061a5b | 653 | * @param AudioFreq: Audio frequency used to play the audio stream. |
NirT | 1:e8fac4061a5b | 654 | * @param Params |
NirT | 1:e8fac4061a5b | 655 | * @note This API is called by BSP_AUDIO_OUT_Init() and BSP_AUDIO_OUT_SetFrequency() |
NirT | 1:e8fac4061a5b | 656 | * Being __weak it can be overwritten by the application |
NirT | 1:e8fac4061a5b | 657 | * @retval None |
NirT | 1:e8fac4061a5b | 658 | */ |
NirT | 1:e8fac4061a5b | 659 | __weak void BSP_AUDIO_OUT_ClockConfig(SAI_HandleTypeDef *hsai, uint32_t AudioFreq, void *Params) |
NirT | 1:e8fac4061a5b | 660 | { |
NirT | 1:e8fac4061a5b | 661 | RCC_PeriphCLKInitTypeDef rcc_ex_clk_init_struct; |
NirT | 1:e8fac4061a5b | 662 | |
NirT | 1:e8fac4061a5b | 663 | HAL_RCCEx_GetPeriphCLKConfig(&rcc_ex_clk_init_struct); |
NirT | 1:e8fac4061a5b | 664 | |
NirT | 1:e8fac4061a5b | 665 | /* Set the PLL configuration according to the audio frequency */ |
NirT | 1:e8fac4061a5b | 666 | if((AudioFreq == AUDIO_FREQUENCY_11K) || (AudioFreq == AUDIO_FREQUENCY_22K) || (AudioFreq == AUDIO_FREQUENCY_44K)) |
NirT | 1:e8fac4061a5b | 667 | { |
NirT | 1:e8fac4061a5b | 668 | /* Configure PLLI2S prescalers */ |
NirT | 1:e8fac4061a5b | 669 | /* PLLI2S_VCO: VCO_429M |
NirT | 1:e8fac4061a5b | 670 | I2S_CLK(first level) = PLLI2S_VCO/PLLI2SQ = 429/2 = 214.5 Mhz |
NirT | 1:e8fac4061a5b | 671 | I2S_CLK_x = I2S_CLK(first level)/PLLI2SDIVQ = 214.5/19 = 11.289 Mhz */ |
NirT | 1:e8fac4061a5b | 672 | rcc_ex_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_SAI2; |
NirT | 1:e8fac4061a5b | 673 | rcc_ex_clk_init_struct.Sai2ClockSelection = RCC_SAI2CLKSOURCE_PLLI2S; |
NirT | 1:e8fac4061a5b | 674 | rcc_ex_clk_init_struct.PLLI2S.PLLI2SN = 429; |
NirT | 1:e8fac4061a5b | 675 | rcc_ex_clk_init_struct.PLLI2S.PLLI2SQ = 2; |
NirT | 1:e8fac4061a5b | 676 | rcc_ex_clk_init_struct.PLLI2SDivQ = 19; |
NirT | 1:e8fac4061a5b | 677 | |
NirT | 1:e8fac4061a5b | 678 | HAL_RCCEx_PeriphCLKConfig(&rcc_ex_clk_init_struct); |
NirT | 1:e8fac4061a5b | 679 | |
NirT | 1:e8fac4061a5b | 680 | } |
NirT | 1:e8fac4061a5b | 681 | else /* AUDIO_FREQUENCY_8K, AUDIO_FREQUENCY_16K, AUDIO_FREQUENCY_48K), AUDIO_FREQUENCY_96K */ |
NirT | 1:e8fac4061a5b | 682 | { |
NirT | 1:e8fac4061a5b | 683 | /* I2S clock config |
NirT | 1:e8fac4061a5b | 684 | PLLI2S_VCO: VCO_344M |
NirT | 1:e8fac4061a5b | 685 | I2S_CLK(first level) = PLLI2S_VCO/PLLI2SQ = 344/7 = 49.142 Mhz |
NirT | 1:e8fac4061a5b | 686 | I2S_CLK_x = I2S_CLK(first level)/PLLI2SDIVQ = 49.142/1 = 49.142 Mhz */ |
NirT | 1:e8fac4061a5b | 687 | rcc_ex_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_SAI2; |
NirT | 1:e8fac4061a5b | 688 | rcc_ex_clk_init_struct.Sai2ClockSelection = RCC_SAI2CLKSOURCE_PLLI2S; |
NirT | 1:e8fac4061a5b | 689 | rcc_ex_clk_init_struct.PLLI2S.PLLI2SN = 344; |
NirT | 1:e8fac4061a5b | 690 | rcc_ex_clk_init_struct.PLLI2S.PLLI2SQ = 7; |
NirT | 1:e8fac4061a5b | 691 | rcc_ex_clk_init_struct.PLLI2SDivQ = 1; |
NirT | 1:e8fac4061a5b | 692 | |
NirT | 1:e8fac4061a5b | 693 | HAL_RCCEx_PeriphCLKConfig(&rcc_ex_clk_init_struct); |
NirT | 1:e8fac4061a5b | 694 | } |
NirT | 1:e8fac4061a5b | 695 | } |
NirT | 1:e8fac4061a5b | 696 | |
NirT | 1:e8fac4061a5b | 697 | /******************************************************************************* |
NirT | 1:e8fac4061a5b | 698 | Static Functions |
NirT | 1:e8fac4061a5b | 699 | *******************************************************************************/ |
NirT | 1:e8fac4061a5b | 700 | |
NirT | 1:e8fac4061a5b | 701 | /** |
NirT | 1:e8fac4061a5b | 702 | * @brief Initializes the output Audio Codec audio interface (SAI). |
NirT | 1:e8fac4061a5b | 703 | * @param AudioFreq: Audio frequency to be configured for the SAI peripheral. |
NirT | 1:e8fac4061a5b | 704 | * @note The default SlotActive configuration is set to CODEC_AUDIOFRAME_SLOT_0123 |
NirT | 1:e8fac4061a5b | 705 | * and user can update this configuration using |
NirT | 1:e8fac4061a5b | 706 | * @retval None |
NirT | 1:e8fac4061a5b | 707 | */ |
NirT | 1:e8fac4061a5b | 708 | static void SAIx_Out_Init(uint32_t AudioFreq) |
NirT | 1:e8fac4061a5b | 709 | { |
NirT | 1:e8fac4061a5b | 710 | /* Initialize the haudio_out_sai Instance parameter */ |
NirT | 1:e8fac4061a5b | 711 | haudio_out_sai.Instance = AUDIO_OUT_SAIx; |
NirT | 1:e8fac4061a5b | 712 | |
NirT | 1:e8fac4061a5b | 713 | /* Disable SAI peripheral to allow access to SAI internal registers */ |
NirT | 1:e8fac4061a5b | 714 | __HAL_SAI_DISABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 715 | |
NirT | 1:e8fac4061a5b | 716 | /* Configure SAI_Block_x |
NirT | 1:e8fac4061a5b | 717 | LSBFirst: Disabled |
NirT | 1:e8fac4061a5b | 718 | DataSize: 16 */ |
NirT | 1:e8fac4061a5b | 719 | haudio_out_sai.Init.AudioFrequency = AudioFreq; |
NirT | 1:e8fac4061a5b | 720 | haudio_out_sai.Init.AudioMode = SAI_MODEMASTER_TX; |
NirT | 1:e8fac4061a5b | 721 | haudio_out_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED; |
NirT | 1:e8fac4061a5b | 722 | haudio_out_sai.Init.Protocol = SAI_FREE_PROTOCOL; |
NirT | 1:e8fac4061a5b | 723 | haudio_out_sai.Init.DataSize = SAI_DATASIZE_16; |
NirT | 1:e8fac4061a5b | 724 | haudio_out_sai.Init.FirstBit = SAI_FIRSTBIT_MSB; |
NirT | 1:e8fac4061a5b | 725 | haudio_out_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE; |
NirT | 1:e8fac4061a5b | 726 | haudio_out_sai.Init.Synchro = SAI_ASYNCHRONOUS; |
NirT | 1:e8fac4061a5b | 727 | haudio_out_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLED; |
NirT | 1:e8fac4061a5b | 728 | haudio_out_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF; |
NirT | 1:e8fac4061a5b | 729 | |
NirT | 1:e8fac4061a5b | 730 | /* Configure SAI_Block_x Frame |
NirT | 1:e8fac4061a5b | 731 | Frame Length: 64 |
NirT | 1:e8fac4061a5b | 732 | Frame active Length: 32 |
NirT | 1:e8fac4061a5b | 733 | FS Definition: Start frame + Channel Side identification |
NirT | 1:e8fac4061a5b | 734 | FS Polarity: FS active Low |
NirT | 1:e8fac4061a5b | 735 | FS Offset: FS asserted one bit before the first bit of slot 0 */ |
NirT | 1:e8fac4061a5b | 736 | haudio_out_sai.FrameInit.FrameLength = 64; |
NirT | 1:e8fac4061a5b | 737 | haudio_out_sai.FrameInit.ActiveFrameLength = 32; |
NirT | 1:e8fac4061a5b | 738 | haudio_out_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION; |
NirT | 1:e8fac4061a5b | 739 | haudio_out_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW; |
NirT | 1:e8fac4061a5b | 740 | haudio_out_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT; |
NirT | 1:e8fac4061a5b | 741 | |
NirT | 1:e8fac4061a5b | 742 | /* Configure SAI Block_x Slot |
NirT | 1:e8fac4061a5b | 743 | Slot First Bit Offset: 0 |
NirT | 1:e8fac4061a5b | 744 | Slot Size : 16 |
NirT | 1:e8fac4061a5b | 745 | Slot Number: 4 |
NirT | 1:e8fac4061a5b | 746 | Slot Active: All slot actives */ |
NirT | 1:e8fac4061a5b | 747 | haudio_out_sai.SlotInit.FirstBitOffset = 0; |
NirT | 1:e8fac4061a5b | 748 | haudio_out_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE; |
NirT | 1:e8fac4061a5b | 749 | haudio_out_sai.SlotInit.SlotNumber = 4; |
NirT | 1:e8fac4061a5b | 750 | haudio_out_sai.SlotInit.SlotActive = CODEC_AUDIOFRAME_SLOT_0123; |
NirT | 1:e8fac4061a5b | 751 | |
NirT | 1:e8fac4061a5b | 752 | HAL_SAI_Init(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 753 | |
NirT | 1:e8fac4061a5b | 754 | /* Enable SAI peripheral to generate MCLK */ |
NirT | 1:e8fac4061a5b | 755 | __HAL_SAI_ENABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 756 | } |
NirT | 1:e8fac4061a5b | 757 | |
NirT | 1:e8fac4061a5b | 758 | |
NirT | 1:e8fac4061a5b | 759 | |
NirT | 1:e8fac4061a5b | 760 | /** |
NirT | 1:e8fac4061a5b | 761 | * @brief Deinitializes the output Audio Codec audio interface (SAI). |
NirT | 1:e8fac4061a5b | 762 | * @retval None |
NirT | 1:e8fac4061a5b | 763 | */ |
NirT | 1:e8fac4061a5b | 764 | static void SAIx_Out_DeInit(void) |
NirT | 1:e8fac4061a5b | 765 | { |
NirT | 1:e8fac4061a5b | 766 | /* Initialize the haudio_out_sai Instance parameter */ |
NirT | 1:e8fac4061a5b | 767 | haudio_out_sai.Instance = AUDIO_OUT_SAIx; |
NirT | 1:e8fac4061a5b | 768 | |
NirT | 1:e8fac4061a5b | 769 | /* Disable SAI peripheral */ |
NirT | 1:e8fac4061a5b | 770 | __HAL_SAI_DISABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 771 | |
NirT | 1:e8fac4061a5b | 772 | HAL_SAI_DeInit(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 773 | } |
NirT | 1:e8fac4061a5b | 774 | |
NirT | 1:e8fac4061a5b | 775 | /** |
NirT | 1:e8fac4061a5b | 776 | * @} |
NirT | 1:e8fac4061a5b | 777 | */ |
NirT | 1:e8fac4061a5b | 778 | |
NirT | 1:e8fac4061a5b | 779 | /** @defgroup STM32746G_DISCOVERY_AUDIO_Out_Private_Functions STM32746G_DISCOVERY_AUDIO Out Private Functions |
NirT | 1:e8fac4061a5b | 780 | * @{ |
NirT | 1:e8fac4061a5b | 781 | */ |
NirT | 1:e8fac4061a5b | 782 | |
NirT | 1:e8fac4061a5b | 783 | /** |
NirT | 1:e8fac4061a5b | 784 | * @brief Initializes wave recording. |
NirT | 1:e8fac4061a5b | 785 | * @param InputDevice: INPUT_DEVICE_DIGITAL_MICROPHONE_2 or INPUT_DEVICE_INPUT_LINE_1 |
NirT | 1:e8fac4061a5b | 786 | * @param Volume: Initial volume level (in range 0(Mute)..80(+0dB)..100(+17.625dB)) |
NirT | 1:e8fac4061a5b | 787 | * @param AudioFreq: Audio frequency to be configured for the SAI peripheral. |
NirT | 1:e8fac4061a5b | 788 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 789 | */ |
NirT | 1:e8fac4061a5b | 790 | uint8_t BSP_AUDIO_IN_Init(uint16_t InputDevice, uint8_t Volume, uint32_t AudioFreq) |
NirT | 1:e8fac4061a5b | 791 | { |
NirT | 1:e8fac4061a5b | 792 | uint8_t ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 793 | uint32_t deviceid = 0x00; |
NirT | 1:e8fac4061a5b | 794 | uint32_t slot_active; |
NirT | 1:e8fac4061a5b | 795 | |
NirT | 1:e8fac4061a5b | 796 | if ((InputDevice != INPUT_DEVICE_INPUT_LINE_1) && /* Only INPUT_LINE_1 and MICROPHONE_2 inputs supported */ |
NirT | 1:e8fac4061a5b | 797 | (InputDevice != INPUT_DEVICE_DIGITAL_MICROPHONE_2)) |
NirT | 1:e8fac4061a5b | 798 | { |
NirT | 1:e8fac4061a5b | 799 | ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 800 | } |
NirT | 1:e8fac4061a5b | 801 | else |
NirT | 1:e8fac4061a5b | 802 | { |
NirT | 1:e8fac4061a5b | 803 | /* Disable SAI */ |
NirT | 1:e8fac4061a5b | 804 | SAIx_In_DeInit(); |
NirT | 1:e8fac4061a5b | 805 | |
NirT | 1:e8fac4061a5b | 806 | /* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */ |
NirT | 1:e8fac4061a5b | 807 | BSP_AUDIO_OUT_ClockConfig(&haudio_in_sai, AudioFreq, NULL); /* Clock config is shared between AUDIO IN and OUT */ |
NirT | 1:e8fac4061a5b | 808 | |
NirT | 1:e8fac4061a5b | 809 | /* SAI data transfer preparation: |
NirT | 1:e8fac4061a5b | 810 | Prepare the Media to be used for the audio transfer from SAI peripheral to memory */ |
NirT | 1:e8fac4061a5b | 811 | haudio_in_sai.Instance = AUDIO_IN_SAIx; |
NirT | 1:e8fac4061a5b | 812 | if(HAL_SAI_GetState(&haudio_in_sai) == HAL_SAI_STATE_RESET) |
NirT | 1:e8fac4061a5b | 813 | { |
NirT | 1:e8fac4061a5b | 814 | /* Init the SAI MSP: this __weak function can be redefined by the application*/ |
NirT | 1:e8fac4061a5b | 815 | BSP_AUDIO_OUT_MspInit(&haudio_in_sai, NULL); /* Initialize GPIOs for SAI2 block A Master signals */ |
NirT | 1:e8fac4061a5b | 816 | BSP_AUDIO_IN_MspInit(&haudio_in_sai, NULL); |
NirT | 1:e8fac4061a5b | 817 | } |
NirT | 1:e8fac4061a5b | 818 | |
NirT | 1:e8fac4061a5b | 819 | /* Configure SAI in master RX mode : |
NirT | 1:e8fac4061a5b | 820 | * - SAI2_block_A in master RX mode |
NirT | 1:e8fac4061a5b | 821 | * - SAI2_block_B in slave RX mode synchronous from SAI2_block_A |
NirT | 1:e8fac4061a5b | 822 | */ |
NirT | 1:e8fac4061a5b | 823 | if (InputDevice == INPUT_DEVICE_DIGITAL_MICROPHONE_2) |
NirT | 1:e8fac4061a5b | 824 | { |
NirT | 1:e8fac4061a5b | 825 | slot_active = CODEC_AUDIOFRAME_SLOT_13; |
NirT | 1:e8fac4061a5b | 826 | } |
NirT | 1:e8fac4061a5b | 827 | else |
NirT | 1:e8fac4061a5b | 828 | { |
NirT | 1:e8fac4061a5b | 829 | slot_active = CODEC_AUDIOFRAME_SLOT_02; |
NirT | 1:e8fac4061a5b | 830 | } |
NirT | 1:e8fac4061a5b | 831 | SAIx_In_Init(SAI_MODEMASTER_RX, slot_active, AudioFreq); |
NirT | 1:e8fac4061a5b | 832 | |
NirT | 1:e8fac4061a5b | 833 | /* wm8994 codec initialization */ |
NirT | 1:e8fac4061a5b | 834 | deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS); |
NirT | 1:e8fac4061a5b | 835 | |
NirT | 1:e8fac4061a5b | 836 | if((deviceid) == WM8994_ID) |
NirT | 1:e8fac4061a5b | 837 | { |
NirT | 1:e8fac4061a5b | 838 | /* Reset the Codec Registers */ |
NirT | 1:e8fac4061a5b | 839 | wm8994_drv.Reset(AUDIO_I2C_ADDRESS); |
NirT | 1:e8fac4061a5b | 840 | /* Initialize the audio driver structure */ |
NirT | 1:e8fac4061a5b | 841 | audio_drv = &wm8994_drv; |
NirT | 1:e8fac4061a5b | 842 | ret = AUDIO_OK; |
NirT | 1:e8fac4061a5b | 843 | } |
NirT | 1:e8fac4061a5b | 844 | else |
NirT | 1:e8fac4061a5b | 845 | { |
NirT | 1:e8fac4061a5b | 846 | ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 847 | } |
NirT | 1:e8fac4061a5b | 848 | |
NirT | 1:e8fac4061a5b | 849 | if(ret == AUDIO_OK) |
NirT | 1:e8fac4061a5b | 850 | { |
NirT | 1:e8fac4061a5b | 851 | /* Initialize the codec internal registers */ |
NirT | 1:e8fac4061a5b | 852 | audio_drv->Init(AUDIO_I2C_ADDRESS, InputDevice, Volume, AudioFreq); |
NirT | 1:e8fac4061a5b | 853 | } |
NirT | 1:e8fac4061a5b | 854 | } |
NirT | 1:e8fac4061a5b | 855 | return ret; |
NirT | 1:e8fac4061a5b | 856 | } |
NirT | 1:e8fac4061a5b | 857 | |
NirT | 1:e8fac4061a5b | 858 | /** |
NirT | 1:e8fac4061a5b | 859 | * @brief Initializes wave recording and playback in parallel. |
NirT | 1:e8fac4061a5b | 860 | * @param InputDevice: INPUT_DEVICE_DIGITAL_MICROPHONE_2 |
NirT | 1:e8fac4061a5b | 861 | * @param OutputDevice: OUTPUT_DEVICE_SPEAKER, OUTPUT_DEVICE_HEADPHONE, |
NirT | 1:e8fac4061a5b | 862 | * or OUTPUT_DEVICE_BOTH. |
NirT | 1:e8fac4061a5b | 863 | * @param Volume: Initial volume level (in range 0(Mute)..80(+0dB)..100(+17.625dB)) |
NirT | 1:e8fac4061a5b | 864 | * @param AudioFreq: Audio frequency to be configured for the SAI peripheral. |
NirT | 1:e8fac4061a5b | 865 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 866 | */ |
NirT | 1:e8fac4061a5b | 867 | uint8_t BSP_AUDIO_IN_OUT_Init(uint16_t InputDevice, uint16_t OutputDevice, uint8_t Volume, uint32_t AudioFreq) |
NirT | 1:e8fac4061a5b | 868 | { |
NirT | 1:e8fac4061a5b | 869 | uint8_t ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 870 | uint32_t deviceid = 0x00; |
NirT | 1:e8fac4061a5b | 871 | uint32_t slot_active; |
NirT | 1:e8fac4061a5b | 872 | |
NirT | 1:e8fac4061a5b | 873 | if (InputDevice != INPUT_DEVICE_DIGITAL_MICROPHONE_2) /* Only MICROPHONE_2 input supported */ |
NirT | 1:e8fac4061a5b | 874 | { |
NirT | 1:e8fac4061a5b | 875 | ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 876 | } |
NirT | 1:e8fac4061a5b | 877 | else |
NirT | 1:e8fac4061a5b | 878 | { |
NirT | 1:e8fac4061a5b | 879 | /* Disable SAI */ |
NirT | 1:e8fac4061a5b | 880 | SAIx_In_DeInit(); |
NirT | 1:e8fac4061a5b | 881 | SAIx_Out_DeInit(); |
NirT | 1:e8fac4061a5b | 882 | |
NirT | 1:e8fac4061a5b | 883 | /* PLL clock is set depending on the AudioFreq (44.1khz vs 48khz groups) */ |
NirT | 1:e8fac4061a5b | 884 | BSP_AUDIO_OUT_ClockConfig(&haudio_in_sai, AudioFreq, NULL); /* Clock config is shared between AUDIO IN and OUT */ |
NirT | 1:e8fac4061a5b | 885 | |
NirT | 1:e8fac4061a5b | 886 | /* SAI data transfer preparation: |
NirT | 1:e8fac4061a5b | 887 | Prepare the Media to be used for the audio transfer from SAI peripheral to memory */ |
NirT | 1:e8fac4061a5b | 888 | haudio_in_sai.Instance = AUDIO_IN_SAIx; |
NirT | 1:e8fac4061a5b | 889 | if(HAL_SAI_GetState(&haudio_in_sai) == HAL_SAI_STATE_RESET) |
NirT | 1:e8fac4061a5b | 890 | { |
NirT | 1:e8fac4061a5b | 891 | /* Init the SAI MSP: this __weak function can be redefined by the application*/ |
NirT | 1:e8fac4061a5b | 892 | BSP_AUDIO_IN_MspInit(&haudio_in_sai, NULL); |
NirT | 1:e8fac4061a5b | 893 | } |
NirT | 1:e8fac4061a5b | 894 | |
NirT | 1:e8fac4061a5b | 895 | /* SAI data transfer preparation: |
NirT | 1:e8fac4061a5b | 896 | Prepare the Media to be used for the audio transfer from memory to SAI peripheral */ |
NirT | 1:e8fac4061a5b | 897 | haudio_out_sai.Instance = AUDIO_OUT_SAIx; |
NirT | 1:e8fac4061a5b | 898 | if(HAL_SAI_GetState(&haudio_out_sai) == HAL_SAI_STATE_RESET) |
NirT | 1:e8fac4061a5b | 899 | { |
NirT | 1:e8fac4061a5b | 900 | /* Init the SAI MSP: this __weak function can be redefined by the application*/ |
NirT | 1:e8fac4061a5b | 901 | BSP_AUDIO_OUT_MspInit(&haudio_out_sai, NULL); |
NirT | 1:e8fac4061a5b | 902 | } |
NirT | 1:e8fac4061a5b | 903 | |
NirT | 1:e8fac4061a5b | 904 | /* Configure SAI in master mode : |
NirT | 1:e8fac4061a5b | 905 | * - SAI2_block_A in master TX mode |
NirT | 1:e8fac4061a5b | 906 | * - SAI2_block_B in slave RX mode synchronous from SAI2_block_A |
NirT | 1:e8fac4061a5b | 907 | */ |
NirT | 1:e8fac4061a5b | 908 | if (InputDevice == INPUT_DEVICE_DIGITAL_MICROPHONE_2) |
NirT | 1:e8fac4061a5b | 909 | { |
NirT | 1:e8fac4061a5b | 910 | slot_active = CODEC_AUDIOFRAME_SLOT_13; |
NirT | 1:e8fac4061a5b | 911 | } |
NirT | 1:e8fac4061a5b | 912 | else |
NirT | 1:e8fac4061a5b | 913 | { |
NirT | 1:e8fac4061a5b | 914 | slot_active = CODEC_AUDIOFRAME_SLOT_02; |
NirT | 1:e8fac4061a5b | 915 | } |
NirT | 1:e8fac4061a5b | 916 | SAIx_In_Init(SAI_MODEMASTER_TX, slot_active, AudioFreq); |
NirT | 1:e8fac4061a5b | 917 | |
NirT | 1:e8fac4061a5b | 918 | /* wm8994 codec initialization */ |
NirT | 1:e8fac4061a5b | 919 | deviceid = wm8994_drv.ReadID(AUDIO_I2C_ADDRESS); |
NirT | 1:e8fac4061a5b | 920 | |
NirT | 1:e8fac4061a5b | 921 | if((deviceid) == WM8994_ID) |
NirT | 1:e8fac4061a5b | 922 | { |
NirT | 1:e8fac4061a5b | 923 | /* Reset the Codec Registers */ |
NirT | 1:e8fac4061a5b | 924 | wm8994_drv.Reset(AUDIO_I2C_ADDRESS); |
NirT | 1:e8fac4061a5b | 925 | /* Initialize the audio driver structure */ |
NirT | 1:e8fac4061a5b | 926 | audio_drv = &wm8994_drv; |
NirT | 1:e8fac4061a5b | 927 | ret = AUDIO_OK; |
NirT | 1:e8fac4061a5b | 928 | } |
NirT | 1:e8fac4061a5b | 929 | else |
NirT | 1:e8fac4061a5b | 930 | { |
NirT | 1:e8fac4061a5b | 931 | ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 932 | } |
NirT | 1:e8fac4061a5b | 933 | |
NirT | 1:e8fac4061a5b | 934 | if(ret == AUDIO_OK) |
NirT | 1:e8fac4061a5b | 935 | { |
NirT | 1:e8fac4061a5b | 936 | /* Initialize the codec internal registers */ |
NirT | 1:e8fac4061a5b | 937 | audio_drv->Init(AUDIO_I2C_ADDRESS, InputDevice | OutputDevice, Volume, AudioFreq); |
NirT | 1:e8fac4061a5b | 938 | } |
NirT | 1:e8fac4061a5b | 939 | } |
NirT | 1:e8fac4061a5b | 940 | return ret; |
NirT | 1:e8fac4061a5b | 941 | } |
NirT | 1:e8fac4061a5b | 942 | |
NirT | 1:e8fac4061a5b | 943 | |
NirT | 1:e8fac4061a5b | 944 | /** |
NirT | 1:e8fac4061a5b | 945 | * @brief Starts audio recording. |
NirT | 1:e8fac4061a5b | 946 | * @param pbuf: Main buffer pointer for the recorded data storing |
NirT | 1:e8fac4061a5b | 947 | * @param size: size of the recorded buffer in number of elements (typically number of half-words) |
NirT | 1:e8fac4061a5b | 948 | * Be careful that it is not the same unit than BSP_AUDIO_OUT_Play function |
NirT | 1:e8fac4061a5b | 949 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 950 | */ |
NirT | 1:e8fac4061a5b | 951 | uint8_t BSP_AUDIO_IN_Record(uint16_t* pbuf, uint32_t size) |
NirT | 1:e8fac4061a5b | 952 | { |
NirT | 1:e8fac4061a5b | 953 | uint32_t ret = AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 954 | |
NirT | 1:e8fac4061a5b | 955 | /* Start the process receive DMA */ |
NirT | 1:e8fac4061a5b | 956 | HAL_SAI_Receive_DMA(&haudio_in_sai, (uint8_t*)pbuf, size); |
NirT | 1:e8fac4061a5b | 957 | |
NirT | 1:e8fac4061a5b | 958 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 959 | ret = AUDIO_OK; |
NirT | 1:e8fac4061a5b | 960 | |
NirT | 1:e8fac4061a5b | 961 | return ret; |
NirT | 1:e8fac4061a5b | 962 | } |
NirT | 1:e8fac4061a5b | 963 | |
NirT | 1:e8fac4061a5b | 964 | /** |
NirT | 1:e8fac4061a5b | 965 | * @brief Stops audio recording. |
NirT | 1:e8fac4061a5b | 966 | * @param Option: could be one of the following parameters |
NirT | 1:e8fac4061a5b | 967 | * - CODEC_PDWN_SW: for software power off (by writing registers). |
NirT | 1:e8fac4061a5b | 968 | * Then no need to reconfigure the Codec after power on. |
NirT | 1:e8fac4061a5b | 969 | * - CODEC_PDWN_HW: completely shut down the codec (physically). |
NirT | 1:e8fac4061a5b | 970 | * Then need to reconfigure the Codec after power on. |
NirT | 1:e8fac4061a5b | 971 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 972 | */ |
NirT | 1:e8fac4061a5b | 973 | uint8_t BSP_AUDIO_IN_Stop(uint32_t Option) |
NirT | 1:e8fac4061a5b | 974 | { |
NirT | 1:e8fac4061a5b | 975 | /* Call the Media layer stop function */ |
NirT | 1:e8fac4061a5b | 976 | HAL_SAI_DMAStop(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 977 | |
NirT | 1:e8fac4061a5b | 978 | /* Call Audio Codec Stop function */ |
NirT | 1:e8fac4061a5b | 979 | if(audio_drv->Stop(AUDIO_I2C_ADDRESS, Option) != 0) |
NirT | 1:e8fac4061a5b | 980 | { |
NirT | 1:e8fac4061a5b | 981 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 982 | } |
NirT | 1:e8fac4061a5b | 983 | else |
NirT | 1:e8fac4061a5b | 984 | { |
NirT | 1:e8fac4061a5b | 985 | if(Option == CODEC_PDWN_HW) |
NirT | 1:e8fac4061a5b | 986 | { |
NirT | 1:e8fac4061a5b | 987 | /* Wait at least 100us */ |
NirT | 1:e8fac4061a5b | 988 | HAL_Delay(1); |
NirT | 1:e8fac4061a5b | 989 | } |
NirT | 1:e8fac4061a5b | 990 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 991 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 992 | } |
NirT | 1:e8fac4061a5b | 993 | } |
NirT | 1:e8fac4061a5b | 994 | |
NirT | 1:e8fac4061a5b | 995 | /** |
NirT | 1:e8fac4061a5b | 996 | * @brief Pauses the audio file stream. |
NirT | 1:e8fac4061a5b | 997 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 998 | */ |
NirT | 1:e8fac4061a5b | 999 | uint8_t BSP_AUDIO_IN_Pause(void) |
NirT | 1:e8fac4061a5b | 1000 | { |
NirT | 1:e8fac4061a5b | 1001 | /* Call the Media layer pause function */ |
NirT | 1:e8fac4061a5b | 1002 | HAL_SAI_DMAPause(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 1003 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 1004 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 1005 | } |
NirT | 1:e8fac4061a5b | 1006 | |
NirT | 1:e8fac4061a5b | 1007 | /** |
NirT | 1:e8fac4061a5b | 1008 | * @brief Resumes the audio file stream. |
NirT | 1:e8fac4061a5b | 1009 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 1010 | */ |
NirT | 1:e8fac4061a5b | 1011 | uint8_t BSP_AUDIO_IN_Resume(void) |
NirT | 1:e8fac4061a5b | 1012 | { |
NirT | 1:e8fac4061a5b | 1013 | /* Call the Media layer pause/resume function */ |
NirT | 1:e8fac4061a5b | 1014 | HAL_SAI_DMAResume(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 1015 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 1016 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 1017 | } |
NirT | 1:e8fac4061a5b | 1018 | |
NirT | 1:e8fac4061a5b | 1019 | /** |
NirT | 1:e8fac4061a5b | 1020 | * @brief Controls the audio in volume level. |
NirT | 1:e8fac4061a5b | 1021 | * @param Volume: Volume level in range 0(Mute)..80(+0dB)..100(+17.625dB) |
NirT | 1:e8fac4061a5b | 1022 | * @retval AUDIO_OK if correct communication, else wrong communication |
NirT | 1:e8fac4061a5b | 1023 | */ |
NirT | 1:e8fac4061a5b | 1024 | uint8_t BSP_AUDIO_IN_SetVolume(uint8_t Volume) |
NirT | 1:e8fac4061a5b | 1025 | { |
NirT | 1:e8fac4061a5b | 1026 | /* Call the codec volume control function with converted volume value */ |
NirT | 1:e8fac4061a5b | 1027 | if(audio_drv->SetVolume(AUDIO_I2C_ADDRESS, Volume) != 0) |
NirT | 1:e8fac4061a5b | 1028 | { |
NirT | 1:e8fac4061a5b | 1029 | return AUDIO_ERROR; |
NirT | 1:e8fac4061a5b | 1030 | } |
NirT | 1:e8fac4061a5b | 1031 | else |
NirT | 1:e8fac4061a5b | 1032 | { |
NirT | 1:e8fac4061a5b | 1033 | /* Set the Global variable AudioInVolume */ |
NirT | 1:e8fac4061a5b | 1034 | AudioInVolume = Volume; |
NirT | 1:e8fac4061a5b | 1035 | /* Return AUDIO_OK when all operations are correctly done */ |
NirT | 1:e8fac4061a5b | 1036 | return AUDIO_OK; |
NirT | 1:e8fac4061a5b | 1037 | } |
NirT | 1:e8fac4061a5b | 1038 | } |
NirT | 1:e8fac4061a5b | 1039 | |
NirT | 1:e8fac4061a5b | 1040 | /** |
NirT | 1:e8fac4061a5b | 1041 | * @brief Deinit the audio IN peripherals. |
NirT | 1:e8fac4061a5b | 1042 | * @retval None |
NirT | 1:e8fac4061a5b | 1043 | */ |
NirT | 1:e8fac4061a5b | 1044 | void BSP_AUDIO_IN_DeInit(void) |
NirT | 1:e8fac4061a5b | 1045 | { |
NirT | 1:e8fac4061a5b | 1046 | SAIx_In_DeInit(); |
NirT | 1:e8fac4061a5b | 1047 | /* DeInit the SAI MSP : this __weak function can be rewritten by the application */ |
NirT | 1:e8fac4061a5b | 1048 | BSP_AUDIO_IN_MspDeInit(&haudio_in_sai, NULL); |
NirT | 1:e8fac4061a5b | 1049 | } |
NirT | 1:e8fac4061a5b | 1050 | |
NirT | 1:e8fac4061a5b | 1051 | /** |
NirT | 1:e8fac4061a5b | 1052 | * @brief Rx Transfer completed callbacks. |
NirT | 1:e8fac4061a5b | 1053 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 1054 | * @retval None |
NirT | 1:e8fac4061a5b | 1055 | */ |
NirT | 1:e8fac4061a5b | 1056 | void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hsai) |
NirT | 1:e8fac4061a5b | 1057 | { |
NirT | 1:e8fac4061a5b | 1058 | /* Call the record update function to get the next buffer to fill and its size (size is ignored) */ |
NirT | 1:e8fac4061a5b | 1059 | BSP_AUDIO_IN_TransferComplete_CallBack(); |
NirT | 1:e8fac4061a5b | 1060 | } |
NirT | 1:e8fac4061a5b | 1061 | |
NirT | 1:e8fac4061a5b | 1062 | /** |
NirT | 1:e8fac4061a5b | 1063 | * @brief Rx Half Transfer completed callbacks. |
NirT | 1:e8fac4061a5b | 1064 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 1065 | * @retval None |
NirT | 1:e8fac4061a5b | 1066 | */ |
NirT | 1:e8fac4061a5b | 1067 | void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hsai) |
NirT | 1:e8fac4061a5b | 1068 | { |
NirT | 1:e8fac4061a5b | 1069 | /* Manage the remaining file size and new address offset: This function |
NirT | 1:e8fac4061a5b | 1070 | should be coded by user (its prototype is already declared in stm32746g_discovery_audio.h) */ |
NirT | 1:e8fac4061a5b | 1071 | BSP_AUDIO_IN_HalfTransfer_CallBack(); |
NirT | 1:e8fac4061a5b | 1072 | } |
NirT | 1:e8fac4061a5b | 1073 | |
NirT | 1:e8fac4061a5b | 1074 | /** |
NirT | 1:e8fac4061a5b | 1075 | * @brief User callback when record buffer is filled. |
NirT | 1:e8fac4061a5b | 1076 | * @retval None |
NirT | 1:e8fac4061a5b | 1077 | */ |
NirT | 1:e8fac4061a5b | 1078 | __weak void BSP_AUDIO_IN_TransferComplete_CallBack(void) |
NirT | 1:e8fac4061a5b | 1079 | { |
NirT | 1:e8fac4061a5b | 1080 | /* This function should be implemented by the user application. |
NirT | 1:e8fac4061a5b | 1081 | It is called into this driver when the current buffer is filled |
NirT | 1:e8fac4061a5b | 1082 | to prepare the next buffer pointer and its size. */ |
NirT | 1:e8fac4061a5b | 1083 | } |
NirT | 1:e8fac4061a5b | 1084 | |
NirT | 1:e8fac4061a5b | 1085 | /** |
NirT | 1:e8fac4061a5b | 1086 | * @brief Manages the DMA Half Transfer complete event. |
NirT | 1:e8fac4061a5b | 1087 | * @retval None |
NirT | 1:e8fac4061a5b | 1088 | */ |
NirT | 1:e8fac4061a5b | 1089 | __weak void BSP_AUDIO_IN_HalfTransfer_CallBack(void) |
NirT | 1:e8fac4061a5b | 1090 | { |
NirT | 1:e8fac4061a5b | 1091 | /* This function should be implemented by the user application. |
NirT | 1:e8fac4061a5b | 1092 | It is called into this driver when the current buffer is filled |
NirT | 1:e8fac4061a5b | 1093 | to prepare the next buffer pointer and its size. */ |
NirT | 1:e8fac4061a5b | 1094 | } |
NirT | 1:e8fac4061a5b | 1095 | |
NirT | 1:e8fac4061a5b | 1096 | /** |
NirT | 1:e8fac4061a5b | 1097 | * @brief Audio IN Error callback function. |
NirT | 1:e8fac4061a5b | 1098 | * @retval None |
NirT | 1:e8fac4061a5b | 1099 | */ |
NirT | 1:e8fac4061a5b | 1100 | __weak void BSP_AUDIO_IN_Error_CallBack(void) |
NirT | 1:e8fac4061a5b | 1101 | { |
NirT | 1:e8fac4061a5b | 1102 | /* This function is called when an Interrupt due to transfer error on or peripheral |
NirT | 1:e8fac4061a5b | 1103 | error occurs. */ |
NirT | 1:e8fac4061a5b | 1104 | } |
NirT | 1:e8fac4061a5b | 1105 | |
NirT | 1:e8fac4061a5b | 1106 | /** |
NirT | 1:e8fac4061a5b | 1107 | * @brief Initializes BSP_AUDIO_IN MSP. |
NirT | 1:e8fac4061a5b | 1108 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 1109 | * @param Params |
NirT | 1:e8fac4061a5b | 1110 | * @retval None |
NirT | 1:e8fac4061a5b | 1111 | */ |
NirT | 1:e8fac4061a5b | 1112 | __weak void BSP_AUDIO_IN_MspInit(SAI_HandleTypeDef *hsai, void *Params) |
NirT | 1:e8fac4061a5b | 1113 | { |
NirT | 1:e8fac4061a5b | 1114 | static DMA_HandleTypeDef hdma_sai_rx; |
NirT | 1:e8fac4061a5b | 1115 | GPIO_InitTypeDef gpio_init_structure; |
NirT | 1:e8fac4061a5b | 1116 | |
NirT | 1:e8fac4061a5b | 1117 | /* Enable SAI clock */ |
NirT | 1:e8fac4061a5b | 1118 | AUDIO_IN_SAIx_CLK_ENABLE(); |
NirT | 1:e8fac4061a5b | 1119 | |
NirT | 1:e8fac4061a5b | 1120 | /* Enable SD GPIO clock */ |
NirT | 1:e8fac4061a5b | 1121 | AUDIO_IN_SAIx_SD_ENABLE(); |
NirT | 1:e8fac4061a5b | 1122 | /* CODEC_SAI pin configuration: SD pin */ |
NirT | 1:e8fac4061a5b | 1123 | gpio_init_structure.Pin = AUDIO_IN_SAIx_SD_PIN; |
NirT | 1:e8fac4061a5b | 1124 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
NirT | 1:e8fac4061a5b | 1125 | gpio_init_structure.Pull = GPIO_NOPULL; |
NirT | 1:e8fac4061a5b | 1126 | gpio_init_structure.Speed = GPIO_SPEED_FAST; |
NirT | 1:e8fac4061a5b | 1127 | gpio_init_structure.Alternate = AUDIO_IN_SAIx_SD_AF; |
NirT | 1:e8fac4061a5b | 1128 | HAL_GPIO_Init(AUDIO_IN_SAIx_SD_GPIO_PORT, &gpio_init_structure); |
NirT | 1:e8fac4061a5b | 1129 | |
NirT | 1:e8fac4061a5b | 1130 | /* Enable Audio INT GPIO clock */ |
NirT | 1:e8fac4061a5b | 1131 | AUDIO_IN_INT_GPIO_ENABLE(); |
NirT | 1:e8fac4061a5b | 1132 | /* Audio INT pin configuration: input */ |
NirT | 1:e8fac4061a5b | 1133 | gpio_init_structure.Pin = AUDIO_IN_INT_GPIO_PIN; |
NirT | 1:e8fac4061a5b | 1134 | gpio_init_structure.Mode = GPIO_MODE_INPUT; |
NirT | 1:e8fac4061a5b | 1135 | gpio_init_structure.Pull = GPIO_NOPULL; |
NirT | 1:e8fac4061a5b | 1136 | gpio_init_structure.Speed = GPIO_SPEED_FAST; |
NirT | 1:e8fac4061a5b | 1137 | HAL_GPIO_Init(AUDIO_IN_INT_GPIO_PORT, &gpio_init_structure); |
NirT | 1:e8fac4061a5b | 1138 | |
NirT | 1:e8fac4061a5b | 1139 | /* Enable the DMA clock */ |
NirT | 1:e8fac4061a5b | 1140 | AUDIO_IN_SAIx_DMAx_CLK_ENABLE(); |
NirT | 1:e8fac4061a5b | 1141 | |
NirT | 1:e8fac4061a5b | 1142 | if(hsai->Instance == AUDIO_IN_SAIx) |
NirT | 1:e8fac4061a5b | 1143 | { |
NirT | 1:e8fac4061a5b | 1144 | /* Configure the hdma_sai_rx handle parameters */ |
NirT | 1:e8fac4061a5b | 1145 | hdma_sai_rx.Init.Channel = AUDIO_IN_SAIx_DMAx_CHANNEL; |
NirT | 1:e8fac4061a5b | 1146 | hdma_sai_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; |
NirT | 1:e8fac4061a5b | 1147 | hdma_sai_rx.Init.PeriphInc = DMA_PINC_DISABLE; |
NirT | 1:e8fac4061a5b | 1148 | hdma_sai_rx.Init.MemInc = DMA_MINC_ENABLE; |
NirT | 1:e8fac4061a5b | 1149 | hdma_sai_rx.Init.PeriphDataAlignment = AUDIO_IN_SAIx_DMAx_PERIPH_DATA_SIZE; |
NirT | 1:e8fac4061a5b | 1150 | hdma_sai_rx.Init.MemDataAlignment = AUDIO_IN_SAIx_DMAx_MEM_DATA_SIZE; |
NirT | 1:e8fac4061a5b | 1151 | hdma_sai_rx.Init.Mode = DMA_CIRCULAR; |
NirT | 1:e8fac4061a5b | 1152 | hdma_sai_rx.Init.Priority = DMA_PRIORITY_HIGH; |
NirT | 1:e8fac4061a5b | 1153 | hdma_sai_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; |
NirT | 1:e8fac4061a5b | 1154 | hdma_sai_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; |
NirT | 1:e8fac4061a5b | 1155 | hdma_sai_rx.Init.MemBurst = DMA_MBURST_SINGLE; |
NirT | 1:e8fac4061a5b | 1156 | hdma_sai_rx.Init.PeriphBurst = DMA_MBURST_SINGLE; |
NirT | 1:e8fac4061a5b | 1157 | |
NirT | 1:e8fac4061a5b | 1158 | hdma_sai_rx.Instance = AUDIO_IN_SAIx_DMAx_STREAM; |
NirT | 1:e8fac4061a5b | 1159 | |
NirT | 1:e8fac4061a5b | 1160 | /* Associate the DMA handle */ |
NirT | 1:e8fac4061a5b | 1161 | __HAL_LINKDMA(hsai, hdmarx, hdma_sai_rx); |
NirT | 1:e8fac4061a5b | 1162 | |
NirT | 1:e8fac4061a5b | 1163 | /* Deinitialize the Stream for new transfer */ |
NirT | 1:e8fac4061a5b | 1164 | HAL_DMA_DeInit(&hdma_sai_rx); |
NirT | 1:e8fac4061a5b | 1165 | |
NirT | 1:e8fac4061a5b | 1166 | /* Configure the DMA Stream */ |
NirT | 1:e8fac4061a5b | 1167 | HAL_DMA_Init(&hdma_sai_rx); |
NirT | 1:e8fac4061a5b | 1168 | } |
NirT | 1:e8fac4061a5b | 1169 | |
NirT | 1:e8fac4061a5b | 1170 | /* SAI DMA IRQ Channel configuration */ |
NirT | 1:e8fac4061a5b | 1171 | HAL_NVIC_SetPriority(AUDIO_IN_SAIx_DMAx_IRQ, AUDIO_IN_IRQ_PREPRIO, 0); |
NirT | 1:e8fac4061a5b | 1172 | HAL_NVIC_EnableIRQ(AUDIO_IN_SAIx_DMAx_IRQ); |
NirT | 1:e8fac4061a5b | 1173 | |
NirT | 1:e8fac4061a5b | 1174 | /* Audio INT IRQ Channel configuration */ |
NirT | 1:e8fac4061a5b | 1175 | HAL_NVIC_SetPriority(AUDIO_IN_INT_IRQ, AUDIO_IN_IRQ_PREPRIO, 0); |
NirT | 1:e8fac4061a5b | 1176 | HAL_NVIC_EnableIRQ(AUDIO_IN_INT_IRQ); |
NirT | 1:e8fac4061a5b | 1177 | } |
NirT | 1:e8fac4061a5b | 1178 | |
NirT | 1:e8fac4061a5b | 1179 | /** |
NirT | 1:e8fac4061a5b | 1180 | * @brief DeInitializes BSP_AUDIO_IN MSP. |
NirT | 1:e8fac4061a5b | 1181 | * @param hsai: SAI handle |
NirT | 1:e8fac4061a5b | 1182 | * @param Params |
NirT | 1:e8fac4061a5b | 1183 | * @retval None |
NirT | 1:e8fac4061a5b | 1184 | */ |
NirT | 1:e8fac4061a5b | 1185 | __weak void BSP_AUDIO_IN_MspDeInit(SAI_HandleTypeDef *hsai, void *Params) |
NirT | 1:e8fac4061a5b | 1186 | { |
NirT | 1:e8fac4061a5b | 1187 | GPIO_InitTypeDef gpio_init_structure; |
NirT | 1:e8fac4061a5b | 1188 | |
NirT | 1:e8fac4061a5b | 1189 | static DMA_HandleTypeDef hdma_sai_rx; |
NirT | 1:e8fac4061a5b | 1190 | |
NirT | 1:e8fac4061a5b | 1191 | /* SAI IN DMA IRQ Channel deactivation */ |
NirT | 1:e8fac4061a5b | 1192 | HAL_NVIC_DisableIRQ(AUDIO_IN_SAIx_DMAx_IRQ); |
NirT | 1:e8fac4061a5b | 1193 | |
NirT | 1:e8fac4061a5b | 1194 | if(hsai->Instance == AUDIO_IN_SAIx) |
NirT | 1:e8fac4061a5b | 1195 | { |
NirT | 1:e8fac4061a5b | 1196 | /* Deinitialize the Stream for new transfer */ |
NirT | 1:e8fac4061a5b | 1197 | HAL_DMA_DeInit(&hdma_sai_rx); |
NirT | 1:e8fac4061a5b | 1198 | } |
NirT | 1:e8fac4061a5b | 1199 | |
NirT | 1:e8fac4061a5b | 1200 | /* Disable SAI block */ |
NirT | 1:e8fac4061a5b | 1201 | __HAL_SAI_DISABLE(hsai); |
NirT | 1:e8fac4061a5b | 1202 | |
NirT | 1:e8fac4061a5b | 1203 | /* Disable pin: SD pin */ |
NirT | 1:e8fac4061a5b | 1204 | gpio_init_structure.Pin = AUDIO_IN_SAIx_SD_PIN; |
NirT | 1:e8fac4061a5b | 1205 | HAL_GPIO_DeInit(AUDIO_IN_SAIx_SD_GPIO_PORT, gpio_init_structure.Pin); |
NirT | 1:e8fac4061a5b | 1206 | |
NirT | 1:e8fac4061a5b | 1207 | /* Disable SAI clock */ |
NirT | 1:e8fac4061a5b | 1208 | AUDIO_IN_SAIx_CLK_DISABLE(); |
NirT | 1:e8fac4061a5b | 1209 | |
NirT | 1:e8fac4061a5b | 1210 | /* GPIO pins clock and DMA clock can be shut down in the application |
NirT | 1:e8fac4061a5b | 1211 | by surcharging this __weak function */ |
NirT | 1:e8fac4061a5b | 1212 | } |
NirT | 1:e8fac4061a5b | 1213 | |
NirT | 1:e8fac4061a5b | 1214 | |
NirT | 1:e8fac4061a5b | 1215 | /******************************************************************************* |
NirT | 1:e8fac4061a5b | 1216 | Static Functions |
NirT | 1:e8fac4061a5b | 1217 | *******************************************************************************/ |
NirT | 1:e8fac4061a5b | 1218 | |
NirT | 1:e8fac4061a5b | 1219 | /** |
NirT | 1:e8fac4061a5b | 1220 | * @brief Initializes the input Audio Codec audio interface (SAI). |
NirT | 1:e8fac4061a5b | 1221 | * @param SaiOutMode: SAI_MODEMASTER_TX (for record and playback in parallel) |
NirT | 1:e8fac4061a5b | 1222 | * or SAI_MODEMASTER_RX (for record only). |
NirT | 1:e8fac4061a5b | 1223 | * @param SlotActive: CODEC_AUDIOFRAME_SLOT_02 or CODEC_AUDIOFRAME_SLOT_13 |
NirT | 1:e8fac4061a5b | 1224 | * @param AudioFreq: Audio frequency to be configured for the SAI peripheral. |
NirT | 1:e8fac4061a5b | 1225 | * @retval None |
NirT | 1:e8fac4061a5b | 1226 | */ |
NirT | 1:e8fac4061a5b | 1227 | static void SAIx_In_Init(uint32_t SaiOutMode, uint32_t SlotActive, uint32_t AudioFreq) |
NirT | 1:e8fac4061a5b | 1228 | { |
NirT | 1:e8fac4061a5b | 1229 | /* Initialize SAI2 block A in MASTER RX */ |
NirT | 1:e8fac4061a5b | 1230 | /* Initialize the haudio_out_sai Instance parameter */ |
NirT | 1:e8fac4061a5b | 1231 | haudio_out_sai.Instance = AUDIO_OUT_SAIx; |
NirT | 1:e8fac4061a5b | 1232 | |
NirT | 1:e8fac4061a5b | 1233 | /* Disable SAI peripheral to allow access to SAI internal registers */ |
NirT | 1:e8fac4061a5b | 1234 | __HAL_SAI_DISABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 1235 | |
NirT | 1:e8fac4061a5b | 1236 | /* Configure SAI_Block_x |
NirT | 1:e8fac4061a5b | 1237 | LSBFirst: Disabled |
NirT | 1:e8fac4061a5b | 1238 | DataSize: 16 */ |
NirT | 1:e8fac4061a5b | 1239 | haudio_out_sai.Init.AudioFrequency = AudioFreq; |
NirT | 1:e8fac4061a5b | 1240 | haudio_out_sai.Init.AudioMode = SaiOutMode; |
NirT | 1:e8fac4061a5b | 1241 | haudio_out_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED; |
NirT | 1:e8fac4061a5b | 1242 | haudio_out_sai.Init.Protocol = SAI_FREE_PROTOCOL; |
NirT | 1:e8fac4061a5b | 1243 | haudio_out_sai.Init.DataSize = SAI_DATASIZE_16; |
NirT | 1:e8fac4061a5b | 1244 | haudio_out_sai.Init.FirstBit = SAI_FIRSTBIT_MSB; |
NirT | 1:e8fac4061a5b | 1245 | haudio_out_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE; |
NirT | 1:e8fac4061a5b | 1246 | haudio_out_sai.Init.Synchro = SAI_ASYNCHRONOUS; |
NirT | 1:e8fac4061a5b | 1247 | haudio_out_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_ENABLED; |
NirT | 1:e8fac4061a5b | 1248 | haudio_out_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF; |
NirT | 1:e8fac4061a5b | 1249 | |
NirT | 1:e8fac4061a5b | 1250 | /* Configure SAI_Block_x Frame |
NirT | 1:e8fac4061a5b | 1251 | Frame Length: 64 |
NirT | 1:e8fac4061a5b | 1252 | Frame active Length: 32 |
NirT | 1:e8fac4061a5b | 1253 | FS Definition: Start frame + Channel Side identification |
NirT | 1:e8fac4061a5b | 1254 | FS Polarity: FS active Low |
NirT | 1:e8fac4061a5b | 1255 | FS Offset: FS asserted one bit before the first bit of slot 0 */ |
NirT | 1:e8fac4061a5b | 1256 | haudio_out_sai.FrameInit.FrameLength = 64; |
NirT | 1:e8fac4061a5b | 1257 | haudio_out_sai.FrameInit.ActiveFrameLength = 32; |
NirT | 1:e8fac4061a5b | 1258 | haudio_out_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION; |
NirT | 1:e8fac4061a5b | 1259 | haudio_out_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW; |
NirT | 1:e8fac4061a5b | 1260 | haudio_out_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT; |
NirT | 1:e8fac4061a5b | 1261 | |
NirT | 1:e8fac4061a5b | 1262 | /* Configure SAI Block_x Slot |
NirT | 1:e8fac4061a5b | 1263 | Slot First Bit Offset: 0 |
NirT | 1:e8fac4061a5b | 1264 | Slot Size : 16 |
NirT | 1:e8fac4061a5b | 1265 | Slot Number: 4 |
NirT | 1:e8fac4061a5b | 1266 | Slot Active: All slot actives */ |
NirT | 1:e8fac4061a5b | 1267 | haudio_out_sai.SlotInit.FirstBitOffset = 0; |
NirT | 1:e8fac4061a5b | 1268 | haudio_out_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE; |
NirT | 1:e8fac4061a5b | 1269 | haudio_out_sai.SlotInit.SlotNumber = 4; |
NirT | 1:e8fac4061a5b | 1270 | haudio_out_sai.SlotInit.SlotActive = SlotActive; |
NirT | 1:e8fac4061a5b | 1271 | |
NirT | 1:e8fac4061a5b | 1272 | HAL_SAI_Init(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 1273 | |
NirT | 1:e8fac4061a5b | 1274 | /* Initialize SAI2 block B in SLAVE RX synchronous from SAI2 block A */ |
NirT | 1:e8fac4061a5b | 1275 | /* Initialize the haudio_in_sai Instance parameter */ |
NirT | 1:e8fac4061a5b | 1276 | haudio_in_sai.Instance = AUDIO_IN_SAIx; |
NirT | 1:e8fac4061a5b | 1277 | |
NirT | 1:e8fac4061a5b | 1278 | /* Disable SAI peripheral to allow access to SAI internal registers */ |
NirT | 1:e8fac4061a5b | 1279 | __HAL_SAI_DISABLE(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 1280 | |
NirT | 1:e8fac4061a5b | 1281 | /* Configure SAI_Block_x |
NirT | 1:e8fac4061a5b | 1282 | LSBFirst: Disabled |
NirT | 1:e8fac4061a5b | 1283 | DataSize: 16 */ |
NirT | 1:e8fac4061a5b | 1284 | haudio_in_sai.Init.AudioFrequency = AudioFreq; |
NirT | 1:e8fac4061a5b | 1285 | haudio_in_sai.Init.AudioMode = SAI_MODESLAVE_RX; |
NirT | 1:e8fac4061a5b | 1286 | haudio_in_sai.Init.NoDivider = SAI_MASTERDIVIDER_ENABLED; |
NirT | 1:e8fac4061a5b | 1287 | haudio_in_sai.Init.Protocol = SAI_FREE_PROTOCOL; |
NirT | 1:e8fac4061a5b | 1288 | haudio_in_sai.Init.DataSize = SAI_DATASIZE_16; |
NirT | 1:e8fac4061a5b | 1289 | haudio_in_sai.Init.FirstBit = SAI_FIRSTBIT_MSB; |
NirT | 1:e8fac4061a5b | 1290 | haudio_in_sai.Init.ClockStrobing = SAI_CLOCKSTROBING_RISINGEDGE; |
NirT | 1:e8fac4061a5b | 1291 | haudio_in_sai.Init.Synchro = SAI_SYNCHRONOUS; |
NirT | 1:e8fac4061a5b | 1292 | haudio_in_sai.Init.OutputDrive = SAI_OUTPUTDRIVE_DISABLED; |
NirT | 1:e8fac4061a5b | 1293 | haudio_in_sai.Init.FIFOThreshold = SAI_FIFOTHRESHOLD_1QF; |
NirT | 1:e8fac4061a5b | 1294 | |
NirT | 1:e8fac4061a5b | 1295 | /* Configure SAI_Block_x Frame |
NirT | 1:e8fac4061a5b | 1296 | Frame Length: 64 |
NirT | 1:e8fac4061a5b | 1297 | Frame active Length: 32 |
NirT | 1:e8fac4061a5b | 1298 | FS Definition: Start frame + Channel Side identification |
NirT | 1:e8fac4061a5b | 1299 | FS Polarity: FS active Low |
NirT | 1:e8fac4061a5b | 1300 | FS Offset: FS asserted one bit before the first bit of slot 0 */ |
NirT | 1:e8fac4061a5b | 1301 | haudio_in_sai.FrameInit.FrameLength = 64; |
NirT | 1:e8fac4061a5b | 1302 | haudio_in_sai.FrameInit.ActiveFrameLength = 32; |
NirT | 1:e8fac4061a5b | 1303 | haudio_in_sai.FrameInit.FSDefinition = SAI_FS_CHANNEL_IDENTIFICATION; |
NirT | 1:e8fac4061a5b | 1304 | haudio_in_sai.FrameInit.FSPolarity = SAI_FS_ACTIVE_LOW; |
NirT | 1:e8fac4061a5b | 1305 | haudio_in_sai.FrameInit.FSOffset = SAI_FS_BEFOREFIRSTBIT; |
NirT | 1:e8fac4061a5b | 1306 | |
NirT | 1:e8fac4061a5b | 1307 | /* Configure SAI Block_x Slot |
NirT | 1:e8fac4061a5b | 1308 | Slot First Bit Offset: 0 |
NirT | 1:e8fac4061a5b | 1309 | Slot Size : 16 |
NirT | 1:e8fac4061a5b | 1310 | Slot Number: 4 |
NirT | 1:e8fac4061a5b | 1311 | Slot Active: All slot active */ |
NirT | 1:e8fac4061a5b | 1312 | haudio_in_sai.SlotInit.FirstBitOffset = 0; |
NirT | 1:e8fac4061a5b | 1313 | haudio_in_sai.SlotInit.SlotSize = SAI_SLOTSIZE_DATASIZE; |
NirT | 1:e8fac4061a5b | 1314 | haudio_in_sai.SlotInit.SlotNumber = 4; |
NirT | 1:e8fac4061a5b | 1315 | haudio_in_sai.SlotInit.SlotActive = SlotActive; |
NirT | 1:e8fac4061a5b | 1316 | |
NirT | 1:e8fac4061a5b | 1317 | HAL_SAI_Init(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 1318 | |
NirT | 1:e8fac4061a5b | 1319 | /* Enable SAI peripheral to generate MCLK */ |
NirT | 1:e8fac4061a5b | 1320 | __HAL_SAI_ENABLE(&haudio_out_sai); |
NirT | 1:e8fac4061a5b | 1321 | |
NirT | 1:e8fac4061a5b | 1322 | /* Enable SAI peripheral */ |
NirT | 1:e8fac4061a5b | 1323 | __HAL_SAI_ENABLE(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 1324 | } |
NirT | 1:e8fac4061a5b | 1325 | |
NirT | 1:e8fac4061a5b | 1326 | |
NirT | 1:e8fac4061a5b | 1327 | |
NirT | 1:e8fac4061a5b | 1328 | /** |
NirT | 1:e8fac4061a5b | 1329 | * @brief Deinitializes the output Audio Codec audio interface (SAI). |
NirT | 1:e8fac4061a5b | 1330 | * @retval None |
NirT | 1:e8fac4061a5b | 1331 | */ |
NirT | 1:e8fac4061a5b | 1332 | static void SAIx_In_DeInit(void) |
NirT | 1:e8fac4061a5b | 1333 | { |
NirT | 1:e8fac4061a5b | 1334 | /* Initialize the haudio_in_sai Instance parameter */ |
NirT | 1:e8fac4061a5b | 1335 | haudio_in_sai.Instance = AUDIO_IN_SAIx; |
NirT | 1:e8fac4061a5b | 1336 | |
NirT | 1:e8fac4061a5b | 1337 | /* Disable SAI peripheral */ |
NirT | 1:e8fac4061a5b | 1338 | __HAL_SAI_DISABLE(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 1339 | |
NirT | 1:e8fac4061a5b | 1340 | HAL_SAI_DeInit(&haudio_in_sai); |
NirT | 1:e8fac4061a5b | 1341 | } |
NirT | 1:e8fac4061a5b | 1342 | |
the_sz | 4:0094f74cb733 | 1343 | void AUDIO_OUT_SAIx_DMAx_IRQHandler(void) |
the_sz | 4:0094f74cb733 | 1344 | { |
the_sz | 4:0094f74cb733 | 1345 | HAL_DMA_IRQHandler(haudio_out_sai.hdmatx); |
the_sz | 4:0094f74cb733 | 1346 | } |
NirT | 1:e8fac4061a5b | 1347 | |
NirT | 1:e8fac4061a5b | 1348 | /** |
NirT | 1:e8fac4061a5b | 1349 | * @} |
NirT | 1:e8fac4061a5b | 1350 | */ |
NirT | 1:e8fac4061a5b | 1351 | |
NirT | 1:e8fac4061a5b | 1352 | /** |
NirT | 1:e8fac4061a5b | 1353 | * @} |
NirT | 1:e8fac4061a5b | 1354 | */ |
NirT | 1:e8fac4061a5b | 1355 | |
NirT | 1:e8fac4061a5b | 1356 | /** |
NirT | 1:e8fac4061a5b | 1357 | * @} |
NirT | 1:e8fac4061a5b | 1358 | */ |
NirT | 1:e8fac4061a5b | 1359 | |
NirT | 1:e8fac4061a5b | 1360 | /** |
NirT | 1:e8fac4061a5b | 1361 | * @} |
NirT | 1:e8fac4061a5b | 1362 | */ |
NirT | 1:e8fac4061a5b | 1363 | |
NirT | 1:e8fac4061a5b | 1364 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
NirT | 1:e8fac4061a5b | 1365 |