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@ -13,7 +13,7 @@ |
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* |
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* FilePath: i2s_rx_example.c |
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* Created Date: 2023-07-10 10:25:00 |
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* Last Modified: 2024-03-22 14:51:22 |
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* Last Modified: 2024-03-29 15:22:41 |
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* Description: This file is for I2S RX example function implmentation. |
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* |
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* Modify History: |
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@ -58,7 +58,8 @@ static FDdmaChanConfig rx_config = {0}; |
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static FDdmaChanConfig tx_config = {0}; |
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/* 音频文件存放地址 */ |
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#define buffer_length 16384 |
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static u32 rx_buf = 0xa0000000; |
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static u32 rx_channel = 1; /* 接收通道为DDMA通道1 */ |
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static u32 tx_channel = 0; /* 接收通道为DDMA通道0 */ |
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static uint8_t Data_Buff[2][buffer_length]; |
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volatile static uint8_t buff_using_num = 0; |
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@ -68,8 +69,8 @@ FError FI2sDdmaDeviceTx(u32 chan_id, u32 work_mode, uintptr src, fsize_t total_b |
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/************************** Function *****************************************/ |
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static void FDdmaRxDMADone() |
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{ |
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FI2sDdmaDeviceRX(1, 0, (uintptr)Data_Buff[!buff_using_num], buffer_length, buffer_length); |
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FI2sDdmaDeviceTx(0, 1, (uintptr)Data_Buff[buff_using_num], buffer_length, buffer_length); |
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FI2sDdmaDeviceRX(rx_channel, AUDIO_PCM_STREAM_CAPTURE, (uintptr)Data_Buff[!buff_using_num], buffer_length, buffer_length); |
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FI2sDdmaDeviceTx(tx_channel, AUDIO_PCM_STREAM_PLAYBACK, (uintptr)Data_Buff[buff_using_num], buffer_length, buffer_length); |
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buff_using_num = !buff_using_num; |
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return; |
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} |
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@ -213,7 +214,7 @@ FError FI2sDdmaDeviceTx(u32 chan_id, u32 work_mode, uintptr src, fsize_t total_b |
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} |
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tx_config.slave_id = 0U, |
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tx_config.req_mode = 1; |
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tx_config.req_mode = AUDIO_PCM_STREAM_PLAYBACK; |
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tx_config.ddr_addr = (uintptr)src; |
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tx_config.dev_addr = i2s_config.base_addr + FI2S_TXDMA ; |
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tx_config.trans_len = total_bytes; |
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@ -221,7 +222,7 @@ FError FI2sDdmaDeviceTx(u32 chan_id, u32 work_mode, uintptr src, fsize_t total_b |
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tx_config.first_desc_addr = (uintptr)bdl_desc_list; |
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tx_config.valid_desc_num = bdl_num; |
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ret = FDdmaChanBdlConfigure(&ddmac, 0, &tx_config); |
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ret = FDdmaChanBdlConfigure(&ddmac, tx_channel, &tx_config); |
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if (ret != FI2S_SUCCESS) |
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{ |
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printf("DDMA BDL configure failer.\r\n"); |
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@ -278,7 +279,7 @@ FError FI2sDdmaDeviceRX(u32 chan_id, u32 work_mode, uintptr src, fsize_t total_b |
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} |
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rx_config.slave_id = 0U, |
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rx_config.req_mode = 0; |
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rx_config.req_mode = AUDIO_PCM_STREAM_CAPTURE; |
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rx_config.ddr_addr = (uintptr)src; |
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rx_config.dev_addr = i2s_config.base_addr + FI2S_RXDMA ; |
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rx_config.trans_len = total_bytes; |
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@ -286,7 +287,7 @@ FError FI2sDdmaDeviceRX(u32 chan_id, u32 work_mode, uintptr src, fsize_t total_b |
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rx_config.first_desc_addr = (uintptr)bdl_desc_list; |
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rx_config.valid_desc_num = bdl_num; |
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ret = FDdmaChanBdlConfigure(&ddmac, 1, &rx_config); |
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ret = FDdmaChanBdlConfigure(&ddmac, rx_channel, &rx_config); |
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if (ret != FI2S_SUCCESS) |
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{ |
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@ -301,10 +302,8 @@ FError FI2sDdmaPlayExample(void) |
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{ |
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FError ret = FES8336_SUCCESS; |
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const u32 ddma_id = FDDMA2_I2S_ID; /* I2S所绑定的DDMA默认是DDMA-2 */ |
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const u32 channel = 1; /* 接收通道为DDMA通道1 */ |
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u32 total_byte = buffer_length; /* 接收音频的最大长度，超过此长度将覆盖原有音频，此值为自定义 */ |
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u32 per_buffer_len = buffer_length; /* 每一个BDL描述符所负责的数据长度，请保持total_byte是per_buffer_len的倍数 */ |
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u32 work_mode = AUDIO_PCM_STREAM_CAPTURE; /* capture mode */ |
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u32 word_length = AUDIO_PCM_STREAM_WORD_LENGTH_16; /* 16-bits word length */ |
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ret = FI2sRxEs8336Init(word_length); |
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@ -327,17 +326,17 @@ FError FI2sDdmaPlayExample(void) |
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printf("Init the I2S failed.\r\n"); |
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return ret; |
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} |
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ret = FI2sDdmaDeviceRX(1, 0, (uintptr)Data_Buff[0], total_byte, per_buffer_len); |
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ret = FI2sDdmaDeviceTx(0, 1, (uintptr)Data_Buff[1], total_byte, per_buffer_len); |
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ret = FI2sDdmaDeviceRX(rx_channel, AUDIO_PCM_STREAM_CAPTURE, (uintptr)Data_Buff[0], total_byte, per_buffer_len); |
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ret = FI2sDdmaDeviceTx(tx_channel, AUDIO_PCM_STREAM_PLAYBACK, (uintptr)Data_Buff[1], total_byte, per_buffer_len); |
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if (FI2S_SUCCESS != ret) |
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{ |
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printf("I2S trans failed.\r\n"); |
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return ret; |
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} |
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FDdmaSetupInterrupt(&ddmac); |
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FDdmaRegisterChanEvtHandler(&ddmac, 1, FDDMA_CHAN_EVT_REQ_DONE, FDdmaRxDMADone, NULL); |
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FDdmaChanActive(&ddmac, 1); |
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FDdmaChanActive(&ddmac, 0); |
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FDdmaRegisterChanEvtHandler(&ddmac, rx_channel, FDDMA_CHAN_EVT_REQ_DONE, FDdmaRxDMADone, NULL); |
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FDdmaChanActive(&ddmac, rx_channel); |
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FDdmaChanActive(&ddmac, tx_channel); |
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FDdmaStart(&ddmac); |
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return ret; |
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} |
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huanghe
7 months ago