251 lines
6.5 KiB
C
251 lines
6.5 KiB
C
/* -*- mode: c; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4; coding: utf-8 -*- */
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/************************************************************************************
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** **
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** mcHF QRP Transceiver **
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** K Atanassov - M0NKA 2014 **
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** **
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**---------------------------------------------------------------------------------**
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** **
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** File name: **
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** Description: **
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** Last Modified: **
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** Licence: GNU GPLv3 **
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************************************************************************************/
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// Common
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#include "uhsdr_board_config.h"
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#include "uhsdr_board.h"
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#include "profiling.h"
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#include "uhsdr_hw_i2s.h"
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#include "audio_driver.h"
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#ifdef UI_BRD_MCHF
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#include "i2s.h"
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#endif
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#ifdef UI_BRD_OVI40
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#include "sai.h"
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#endif
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typedef struct
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{
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IqSample_t out[2*IQ_BLOCK_SIZE];
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IqSample_t in[2*IQ_BLOCK_SIZE];
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} dma_iq_buffer_t;
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typedef struct
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{
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AudioSample_t out[2*AUDIO_BLOCK_SIZE];
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AudioSample_t in[2*AUDIO_BLOCK_SIZE];
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} dma_audio_buffer_t;
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// we do something tricky here:
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// if we have a single codec both buffers are in fact the same, so we use a union
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// if we have two codecs we use a struct hence two separate buffers
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typedef
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#if CODEC_NUM == 1
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union
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#else
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struct
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#endif
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{
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dma_iq_buffer_t iq_buf;
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dma_audio_buffer_t audio_buf;
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} I2S_DmaBuffers_t;
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static __UHSDR_DMAMEM I2S_DmaBuffers_t dma;
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void UhsdrHwI2s_Codec_ClearTxDmaBuffer()
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{
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memset((void*)&dma.iq_buf.out, 0, sizeof(dma.iq_buf.out));
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}
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// #define PROFILE_APP
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static void MchfHw_Codec_HandleBlock(uint16_t which)
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{
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#ifdef PROFILE_EVENTS
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// we stop during interrupt
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// at the end we start again
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#ifdef PROFILE_APP
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profileCycleCount_stop();
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#else
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profileTimedEventStart(ProfileAudioInterrupt);
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#endif
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#endif
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#ifdef EXEC_PROFILING
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// Profiling pin (high level)
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GPIOE->BSRRL = GPIO_Pin_10;
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#endif
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ts.audio_int_counter++; // generating a time base for encoder handling
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// Transfer complete interrupt
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// Point to 2nd half of buffers
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const size_t sz = IQ_BLOCK_SIZE;
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const uint16_t offset = which == 0?sz:0;
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AudioSample_t *audio;
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IqSample_t *iq;
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if (ts.txrx_mode != TRX_MODE_TX)
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{
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iq = &dma.iq_buf.in[offset];
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audio = &dma.audio_buf.out[offset];
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}
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else
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{
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audio = &dma.audio_buf.in[offset];
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iq = &dma.iq_buf.out[offset];
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}
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AudioSample_t *audioDst = &dma.audio_buf.out[offset];
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// Handle
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AudioDriver_I2SCallback(audio, iq, audioDst, sz);
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#ifdef EXEC_PROFILING
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// Profiling pin (low level)
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GPIOE->BSRRH = GPIO_Pin_10;
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#endif
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#ifdef PROFILE_EVENTS
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// we stopped during interrupt
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// now we start again
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#ifdef PROFILE_APP
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profileCycleCount_start();
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#else
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profileTimedEventStop(ProfileAudioInterrupt);
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#endif
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#endif
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}
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#ifdef UI_BRD_MCHF
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/**
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* @brief HAL Handler for Codec DMA Interrupt
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*/
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void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s)
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{
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MchfHw_Codec_HandleBlock(0);
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}
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/**
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* @brief HAL Handler for Codec DMA Interrupt
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*/
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void HAL_I2S_RxHalfCpltCallback(I2S_HandleTypeDef *hi2s)
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{
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MchfHw_Codec_HandleBlock(1);
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}
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#endif
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#ifdef UI_BRD_OVI40
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void HAL_SAI_RxCpltCallback(SAI_HandleTypeDef *hi2s)
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{
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if (hi2s == &hsai_BlockA2)
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{
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MchfHw_Codec_HandleBlock(0);
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}
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}
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void HAL_SAI_RxHalfCpltCallback(SAI_HandleTypeDef *hi2s)
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{
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if (hi2s == &hsai_BlockA2)
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{
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MchfHw_Codec_HandleBlock(1);
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}
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}
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#endif
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#if defined(UI_BRD_OVI40) && defined(USE_32_IQ_BITS) && defined(USE_32_AUDIO_BITS)
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static void UhsdrHWI2s_Sai32Bits(SAI_HandleTypeDef* hsai)
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{
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hsai->hdmarx->Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
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hsai->hdmarx->Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
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HAL_DMA_Init(hsai->hdmarx);
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HAL_SAI_InitProtocol(hsai, SAI_I2S_STANDARD, SAI_PROTOCOL_DATASIZE_32BIT, 2);
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}
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static void UhsdrHWI2s_Sai24Bits(SAI_HandleTypeDef* hsai)
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{
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hsai->hdmarx->Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
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hsai->hdmarx->Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
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HAL_DMA_Init(hsai->hdmarx);
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HAL_SAI_InitProtocol(hsai, SAI_I2S_STANDARD, SAI_PROTOCOL_DATASIZE_24BIT, 2);
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}
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#endif
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static void UhsdrHwI2s_SetBitWidth(void)
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{
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#if defined(USE_32_IQ_BITS)
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#if defined(UI_BRD_MCHF)
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hi2s3.Init.DataFormat = I2S_DATAFORMAT_32B;
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HAL_I2S_Init(&hi2s3);
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#endif
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#if defined(UI_BRD_OVI40)
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if(ts.codecCS4270_present)
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{
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UhsdrHWI2s_Sai24Bits(&hsai_BlockA2);
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UhsdrHWI2s_Sai24Bits(&hsai_BlockB2);
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}
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else
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{
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UhsdrHWI2s_Sai32Bits(&hsai_BlockA2);
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UhsdrHWI2s_Sai32Bits(&hsai_BlockB2);
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}
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#endif
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#endif
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#if defined(USE_32_AUDIO_BITS)
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#if defined(UI_BRD_OVI40)
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UhsdrHWI2s_Sai32Bits(&hsai_BlockA1);
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UhsdrHWI2s_Sai32Bits(&hsai_BlockB1);
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#endif
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#endif
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}
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void UhsdrHwI2s_Codec_StartDMA()
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{
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UhsdrHwI2s_SetBitWidth();
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#ifdef UI_BRD_MCHF
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HAL_I2SEx_TransmitReceive_DMA(&hi2s3,(uint16_t*)dma.iq_buf.out,(uint16_t*)dma.iq_buf.in,sizeof(dma.iq_buf.in)/sizeof(dma.iq_buf.in[0].l));
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#endif
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#ifdef UI_BRD_OVI40
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// we clean the buffers since we don't know if we are in a "cleaned" memory segement
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memset((void*)&dma.audio_buf,0,sizeof(dma.audio_buf));
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memset((void*)&dma.iq_buf,0,sizeof(dma.iq_buf));
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HAL_SAI_Receive_DMA(&hsai_BlockA1,(uint8_t*)dma.audio_buf.in,sizeof(dma.audio_buf.in)/sizeof(dma.audio_buf.in[0].l));
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HAL_SAI_Transmit_DMA(&hsai_BlockB1,(uint8_t*)dma.audio_buf.out,sizeof(dma.audio_buf.out)/sizeof(dma.audio_buf.out[0].l));
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HAL_SAI_Receive_DMA(&hsai_BlockA2,(uint8_t*)dma.iq_buf.in,sizeof(dma.iq_buf.in)/sizeof(dma.iq_buf.in[0].l));
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HAL_SAI_Transmit_DMA(&hsai_BlockB2,(uint8_t*)dma.iq_buf.out,sizeof(dma.iq_buf.out)/sizeof(dma.iq_buf.out[0].l));
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#endif
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}
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void UhsdrHwI2s_Codec_StopDMA(void)
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{
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#ifdef UI_BRD_MCHF
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HAL_I2S_DMAStop(&hi2s3);
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#endif
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#ifdef UI_BRD_OVI40
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HAL_SAI_DMAStop(&hsai_BlockA1);
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HAL_SAI_DMAStop(&hsai_BlockB1);
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HAL_SAI_DMAStop(&hsai_BlockA2);
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HAL_SAI_DMAStop(&hsai_BlockB2);
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#endif
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}
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