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rt-thread-official/bsp/stm32/stm32f407-rt-spark/board/ports/audio/drv_sound.c

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[bsp][stm32][rt-spark] 更新 cubemx ports
2023-08-10 15:11:21 +08:00
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Date Author Notes
* 2019-07-31 Zero-Free first implementation
*/
#include <board.h>
#include "drv_sound.h"
#include "drv_es8388.h"
#define DBG_TAG "drv.sound"
#define DBG_LVL DBG_LOG
#include <rtdbg.h>
#define TX_FIFO_SIZE (2048)
struct sound_device
{
struct rt_audio_device audio;
struct rt_audio_configure replay_config;
rt_uint8_t *tx_fifo;
rt_uint8_t volume;
};
static struct sound_device snd_dev = {0};
static I2S_HandleTypeDef I2S3_Handler = {0};
static DMA_HandleTypeDef I2S3_TXDMA_Handler = {0};
/**
* 采样率计算公式:Fs=I2SxCLK/[256*(2*I2SDIV+ODD)]
* I2SxCLK=(HSE/pllm)*PLLI2SN/PLLI2SR
* 一般HSE=8Mhz
* pllm:在Sys_Clock_Set设置的时候确定，一般是8
* PLLI2SN:一般是192~432
* PLLI2SR:2~7
* I2SDIV:2~255
* ODD:0/1
* I2S分频系数表@pllm=8,HSE=8Mhz,即vco输入频率为1Mhz
* 表格式:采样率/10,PLLI2SN,PLLI2SR,I2SDIV,ODD
*/
const uint16_t I2S_PSC_TBL[][5]=
{
{ 800, 256, 5, 12, 1 }, /* 8Khz采样率 */
{ 1102, 429, 4, 19, 0 }, /* 11.025Khz采样率 */
{ 1600, 213, 2, 13, 0 }, /* 16Khz采样率 */
{ 2205, 429, 4, 9, 1 }, /* 22.05Khz采样率 */
{ 3200, 213, 2, 6, 1 }, /* 32Khz采样率 */
{ 4410, 271, 2, 6, 0 }, /* 44.1Khz采样率 */
{ 4800, 258, 3, 3, 1 }, /* 48Khz采样率 */
{ 8820, 316, 2, 3, 1 }, /* 88.2Khz采样率 */
{ 9600, 344, 2, 3, 1 }, /* 96Khz采样率 */
{ 17640, 361, 2, 2, 0 }, /* 176.4Khz采样率 */
{ 19200, 393, 2, 2, 0 }, /* 192Khz采样率 */
};
static void I2S3_Init(void)
{
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
PeriphClkInitStruct.PeriphClockSelection |= RCC_PERIPHCLK_I2S;
PeriphClkInitStruct.PLLI2S.PLLI2SN = 192;
PeriphClkInitStruct.PLLI2S.PLLI2SR = 2;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
HAL_I2S_DeInit(&I2S3_Handler);
I2S3_Handler.Instance = SPI3;
I2S3_Handler.Init.Mode = I2S_MODE_MASTER_TX;
I2S3_Handler.Init.Standard = I2S_STANDARD_PHILIPS;
I2S3_Handler.Init.DataFormat = I2S_DATAFORMAT_16B;
I2S3_Handler.Init.MCLKOutput = I2S_MCLKOUTPUT_ENABLE;
I2S3_Handler.Init.AudioFreq = I2S_AUDIOFREQ_44K;
I2S3_Handler.Init.CPOL = I2S_CPOL_LOW;
I2S3_Handler.Init.ClockSource = I2S_CLOCK_PLL;
I2S3_Handler.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_ENABLE;
if (HAL_I2S_Init(&I2S3_Handler) != HAL_OK)
{
Error_Handler();
}
SET_BIT(I2S3_Handler.Instance->CR2, SPI_CR2_TXDMAEN);
__HAL_I2S_ENABLE(&I2S3_Handler);
/* Configure DMA used for I2S3 */
__HAL_RCC_DMA1_CLK_ENABLE();
I2S3_TXDMA_Handler.Instance = DMA1_Stream7;
I2S3_TXDMA_Handler.Init.Channel = DMA_CHANNEL_0;
I2S3_TXDMA_Handler.Init.Direction = DMA_MEMORY_TO_PERIPH;
I2S3_TXDMA_Handler.Init.PeriphInc = DMA_PINC_DISABLE;
I2S3_TXDMA_Handler.Init.MemInc = DMA_MINC_ENABLE;
I2S3_TXDMA_Handler.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
I2S3_TXDMA_Handler.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
I2S3_TXDMA_Handler.Init.Mode = DMA_CIRCULAR;
I2S3_TXDMA_Handler.Init.Priority = DMA_PRIORITY_HIGH;
I2S3_TXDMA_Handler.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
__HAL_LINKDMA(&I2S3_Handler,hdmatx,I2S3_TXDMA_Handler);
HAL_DMA_DeInit(&I2S3_TXDMA_Handler);
HAL_DMA_Init(&I2S3_TXDMA_Handler);
// __HAL_DMA_ENABLE(&I2S3_TXDMA_Handler);
__HAL_DMA_DISABLE(&I2S3_TXDMA_Handler);
__HAL_DMA_ENABLE_IT(&I2S3_TXDMA_Handler, DMA_IT_TC); /* 开启传输完成中断 */
__HAL_DMA_CLEAR_FLAG(&I2S3_TXDMA_Handler, DMA_FLAG_TCIF0_4);
HAL_NVIC_SetPriority(DMA1_Stream7_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA1_Stream7_IRQn);
}
void DMA1_Stream7_IRQHandler(void)
{
rt_audio_tx_complete(&snd_dev.audio);
HAL_DMA_IRQHandler(&I2S3_TXDMA_Handler);
}
//void HAL_SAI_TxHalfCpltCallback(SAI_HandleTypeDef *hsai)
//{
// if (hsai == &SAI1A_Handler)
// {
// rt_audio_tx_complete(&snd_dev.audio);
// }
//}
//void HAL_SAI_TxCpltCallback(SAI_HandleTypeDef *hsai)
//{
// if (hsai == &SAI1A_Handler)
// {
// rt_audio_tx_complete(&snd_dev.audio);
// }
//}
void I2S_Frequency_Set(uint32_t samplerate)
{
// uint8_t i = 0;
// uint32_t tempreg = 0;
// RCC_PeriphCLKInitTypeDef rcc_i2s_clkinit_struct;
// for (i = 0; i < (sizeof(I2S_PSC_TBL) / 10); i++) /* 看看改采样率是否可以支持 */
// {
// if ((samplerate / 10) == I2S_PSC_TBL[i][0])
// {
// break;
// }
// }
// if (i == (sizeof(I2S_PSC_TBL) / 10))
// {
// LOG_E("samplerate not supported.");
// // return 1; /* 找不到 */
// }
// rcc_i2s_clkinit_struct.PeriphClockSelection = RCC_PERIPHCLK_I2S; /* 外设时钟源选择 */
// rcc_i2s_clkinit_struct.PLLI2S.PLLI2SN = (uint32_t)I2S_PSC_TBL[i][1]; /* 设置PLLI2SN */
// rcc_i2s_clkinit_struct.PLLI2S.PLLI2SR = (uint32_t)I2S_PSC_TBL[i][2]; /* 设置PLLI2SR */
// HAL_RCCEx_PeriphCLKConfig(&rcc_i2s_clkinit_struct); /* 设置时钟 */
// RCC->CR |= 1 << 26; /* 开启I2S时钟 */
// while((RCC->CR & 1 << 27) == 0); /* 等待I2S时钟开启成功. */
// tempreg = I2S_PSC_TBL[i][3] << 0; /* 设置I2SDIV */
// tempreg |= I2S_PSC_TBL[i][4] << 8; /* 设置ODD位 */
// tempreg |= 1 << 9; /* 使能MCKOE位,输出MCK */
// I2S3_Handler.Instance->I2SPR = tempreg; /* 设置I2SPR寄存器 */
// return 0;
// RCC_PeriphCLKInitTypeDef PeriphClkInit;
// HAL_RCCEx_GetPeriphCLKConfig(&PeriphClkInit);
// if ((frequency == SAI_AUDIO_FREQUENCY_11K) || (frequency == SAI_AUDIO_FREQUENCY_22K) || (frequency == SAI_AUDIO_FREQUENCY_44K))
// {
// /* Configure and enable PLLSAI1 clock to generate 45.714286MHz */
// PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_SAI1;
// PeriphClkInit.Sai1ClockSelection = RCC_SAI1CLKSOURCE_PLLSAI2;
// PeriphClkInit.PLLSAI2.PLLSAI2Source = RCC_PLLSOURCE_HSE;
// PeriphClkInit.PLLSAI2.PLLSAI2M = 1;
// PeriphClkInit.PLLSAI2.PLLSAI2N = 40;
// PeriphClkInit.PLLSAI2.PLLSAI2ClockOut = RCC_PLLSAI2_SAI2CLK;
// HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
// }
// else
// {
// /* Configure and enable PLLSAI1 clock to generate 49.142857MHz */
// PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_SAI1;
// PeriphClkInit.Sai1ClockSelection = RCC_SAI1CLKSOURCE_PLLSAI2;
// PeriphClkInit.PLLSAI2.PLLSAI2Source = RCC_PLLSOURCE_HSE;
// PeriphClkInit.PLLSAI2.PLLSAI2M = 1;
// PeriphClkInit.PLLSAI2.PLLSAI2N = 43;
// PeriphClkInit.PLLSAI2.PLLSAI2P = RCC_PLLP_DIV7;
// PeriphClkInit.PLLSAI2.PLLSAI2ClockOut = RCC_PLLSAI2_SAI2CLK;
// HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
// }
// /* Disable SAI peripheral to allow access to SAI internal registers */
// __HAL_SAI_DISABLE(&SAI1A_Handler);
// /* Update the SAI audio frequency configuration */
// SAI1A_Handler.Init.AudioFrequency = frequency;
// HAL_SAI_Init(&SAI1A_Handler);
// /* Enable SAI peripheral to generate MCLK */
// __HAL_SAI_ENABLE(&SAI1A_Handler);
}
void SAIA_Channels_Set(uint8_t channels)
{
// if (channels == 1)
// {
// SAI1A_Handler.Init.MonoStereoMode = SAI_MONOMODE;
// }
// else
// {
// SAI1A_Handler.Init.MonoStereoMode = SAI_STEREOMODE;
// }
// __HAL_SAI_DISABLE(&SAI1A_Handler);
// HAL_SAI_Init(&SAI1A_Handler);
// __HAL_SAI_ENABLE(&SAI1A_Handler);
}
/**
* RT-Thread Audio Device Driver Interface
*/
static rt_err_t sound_getcaps(struct rt_audio_device *audio, struct rt_audio_caps *caps)
{
rt_err_t result = RT_EOK;
struct sound_device *snd_dev;
RT_ASSERT(audio != RT_NULL);
snd_dev = (struct sound_device *)audio->parent.user_data;
switch (caps->main_type)
{
case AUDIO_TYPE_QUERY: /* qurey the types of hw_codec device */
{
switch (caps->sub_type)
{
case AUDIO_TYPE_QUERY:
caps->udata.mask = AUDIO_TYPE_OUTPUT | AUDIO_TYPE_MIXER;
break;
default:
result = -RT_ERROR;
break;
}
break;
}
case AUDIO_TYPE_OUTPUT: /* Provide capabilities of OUTPUT unit */
{
switch (caps->sub_type)
{
case AUDIO_DSP_PARAM:
caps->udata.config.samplerate = snd_dev->replay_config.samplerate;
caps->udata.config.channels = snd_dev->replay_config.channels;
caps->udata.config.samplebits = snd_dev->replay_config.samplebits;
break;
case AUDIO_DSP_SAMPLERATE:
caps->udata.config.samplerate = snd_dev->replay_config.samplerate;
break;
case AUDIO_DSP_CHANNELS:
caps->udata.config.channels = snd_dev->replay_config.channels;
break;
case AUDIO_DSP_SAMPLEBITS:
caps->udata.config.samplebits = snd_dev->replay_config.samplebits;
break;
default:
result = -RT_ERROR;
break;
}
break;
}
case AUDIO_TYPE_MIXER: /* report the Mixer Units */
{
switch (caps->sub_type)
{
case AUDIO_MIXER_QUERY:
caps->udata.mask = AUDIO_MIXER_VOLUME;
break;
case AUDIO_MIXER_VOLUME:
caps->udata.value = es8388_volume_get();
break;
default:
result = -RT_ERROR;
break;
}
break;
}
default:
result = -RT_ERROR;
break;
}
return result;
}
static rt_err_t sound_configure(struct rt_audio_device *audio, struct rt_audio_caps *caps)
{
rt_err_t result = RT_EOK;
struct sound_device *snd_dev;
RT_ASSERT(audio != RT_NULL);
snd_dev = (struct sound_device *)audio->parent.user_data;
switch (caps->main_type)
{
case AUDIO_TYPE_MIXER:
{
switch (caps->sub_type)
{
case AUDIO_MIXER_VOLUME:
{
rt_uint8_t volume = caps->udata.value;
es8388_volume_set(volume);
snd_dev->volume = volume;
LOG_D("set volume %d", volume);
break;
}
default:
result = -RT_ERROR;
break;
}
break;
}
case AUDIO_TYPE_OUTPUT:
{
switch (caps->sub_type)
{
case AUDIO_DSP_PARAM:
{
/* set samplerate */
I2S_Frequency_Set(caps->udata.config.samplerate);
/* set channels */
SAIA_Channels_Set(caps->udata.config.channels);
/* save configs */
snd_dev->replay_config.samplerate = caps->udata.config.samplerate;
snd_dev->replay_config.channels = caps->udata.config.channels;
snd_dev->replay_config.samplebits = caps->udata.config.samplebits;
LOG_D("set samplerate %d", snd_dev->replay_config.samplerate);
break;
}
case AUDIO_DSP_SAMPLERATE:
{
I2S_Frequency_Set(caps->udata.config.samplerate);
snd_dev->replay_config.samplerate = caps->udata.config.samplerate;
LOG_D("set samplerate %d", snd_dev->replay_config.samplerate);
break;
}
case AUDIO_DSP_CHANNELS:
{
SAIA_Channels_Set(caps->udata.config.channels);
snd_dev->replay_config.channels = caps->udata.config.channels;
LOG_D("set channels %d", snd_dev->replay_config.channels);
break;
}
case AUDIO_DSP_SAMPLEBITS:
{
/* not support */
snd_dev->replay_config.samplebits = caps->udata.config.samplebits;
break;
}
default:
result = -RT_ERROR;
break;
}
break;
}
default:
break;
}
return result;
}
static rt_err_t sound_init(struct rt_audio_device *audio)
{
rt_err_t result = RT_EOK;
struct sound_device *snd_dev;
RT_ASSERT(audio != RT_NULL);
snd_dev = (struct sound_device *)audio->parent.user_data;
es8388_init("i2c2", RT_NULL);
I2S3_Init();
LOG_I("ES8388 init success.");
/* set default params */
I2S_Frequency_Set(snd_dev->replay_config.samplerate);
SAIA_Channels_Set(snd_dev->replay_config.channels);
return result;
}
static rt_err_t sound_start(struct rt_audio_device *audio, int stream)
{
struct sound_device *snd_dev;
RT_ASSERT(audio != RT_NULL);
snd_dev = (struct sound_device *)audio->parent.user_data;
if (stream == AUDIO_STREAM_REPLAY)
{
LOG_D("sound start.");
es8388_start(ES_MODE_DAC);
HAL_I2S_Transmit_DMA(&I2S3_Handler, (uint16_t*)snd_dev->tx_fifo, TX_FIFO_SIZE / 2);
}
return RT_EOK;
}
static rt_err_t sound_stop(struct rt_audio_device *audio, int stream)
{
RT_ASSERT(audio != RT_NULL);
if (stream == AUDIO_STREAM_REPLAY)
{
HAL_I2S_DMAStop(&I2S3_Handler);
es8388_stop(ES_MODE_DAC);
LOG_D("sound stop.");
}
return RT_EOK;
}
static void sound_buffer_info(struct rt_audio_device *audio, struct rt_audio_buf_info *info)
{
struct sound_device *snd_dev;
RT_ASSERT(audio != RT_NULL);
snd_dev = (struct sound_device *)audio->parent.user_data;
/**
* TX_FIFO
* +----------------+----------------+
* | block1 | block2 |
* +----------------+----------------+
* \ block_size /
*/
info->buffer = snd_dev->tx_fifo;
info->total_size = TX_FIFO_SIZE;
info->block_size = TX_FIFO_SIZE / 2;
info->block_count = 2;
}
static struct rt_audio_ops snd_ops =
{
.getcaps = sound_getcaps,
.configure = sound_configure,
.init = sound_init,
.start = sound_start,
.stop = sound_stop,
.transmit = RT_NULL,
.buffer_info = sound_buffer_info,
};
int rt_hw_sound_init(void)
{
rt_uint8_t *tx_fifo;
if (snd_dev.tx_fifo)
return RT_EOK;
tx_fifo = rt_malloc(TX_FIFO_SIZE);
if (tx_fifo == RT_NULL)
return -RT_ENOMEM;
rt_memset(tx_fifo, 0, TX_FIFO_SIZE);
snd_dev.tx_fifo = tx_fifo;
/* init default configuration */
{
snd_dev.replay_config.samplerate = 44100;
snd_dev.replay_config.channels = 2;
snd_dev.replay_config.samplebits = 16;
snd_dev.volume = 55;
}
/* register sound device */
snd_dev.audio.ops = &snd_ops;
rt_audio_register(&snd_dev.audio, "sound0", RT_DEVICE_FLAG_WRONLY, &snd_dev);
return RT_EOK;
}
// INIT_DEVICE_EXPORT(rt_hw_sound_init);