#include #include #include "stm32f10x.h" /* * WM8753 Driver */ /* WM8753 register definitions */ #define WM8753_DAC 0x01 #define WM8753_ADC 0x02 #define WM8753_PCM 0x03 #define WM8753_HIFI 0x04 #define WM8753_IOCTL 0x05 #define WM8753_SRATE1 0x06 #define WM8753_SRATE2 0x07 #define WM8753_LDAC 0x08 #define WM8753_RDAC 0x09 #define WM8753_BASS 0x0a #define WM8753_TREBLE 0x0b #define WM8753_ALC1 0x0c #define WM8753_ALC2 0x0d #define WM8753_ALC3 0x0e #define WM8753_NGATE 0x0f #define WM8753_LADC 0x10 #define WM8753_RADC 0x11 #define WM8753_ADCTL1 0x12 #define WM8753_3D 0x13 #define WM8753_PWR1 0x14 #define WM8753_PWR2 0x15 #define WM8753_PWR3 0x16 #define WM8753_PWR4 0x17 #define WM8753_ID 0x18 #define WM8753_INTPOL 0x19 #define WM8753_INTEN 0x1a #define WM8753_GPIO1 0x1b #define WM8753_GPIO2 0x1c #define WM8753_RESET 0x1f #define WM8753_RECMIX1 0x20 #define WM8753_RECMIX2 0x21 #define WM8753_LOUTM1 0x22 #define WM8753_LOUTM2 0x23 #define WM8753_ROUTM1 0x24 #define WM8753_ROUTM2 0x25 #define WM8753_MOUTM1 0x26 #define WM8753_MOUTM2 0x27 #define WM8753_LOUT1V 0x28 #define WM8753_ROUT1V 0x29 #define WM8753_LOUT2V 0x2a #define WM8753_ROUT2V 0x2b #define WM8753_MOUTV 0x2c #define WM8753_OUTCTL 0x2d #define WM8753_ADCIN 0x2e #define WM8753_INCTL1 0x2f #define WM8753_INCTL2 0x30 #define WM8753_LINVOL 0x31 #define WM8753_RINVOL 0x32 #define WM8753_MICBIAS 0x33 #define WM8753_CLOCK 0x34 #define WM8753_PLL1CTL1 0x35 #define WM8753_PLL1CTL2 0x36 #define WM8753_PLL1CTL3 0x37 #define WM8753_PLL1CTL4 0x38 #define WM8753_PLL2CTL1 0x39 #define WM8753_PLL2CTL2 0x3a #define WM8753_PLL2CTL3 0x3b #define WM8753_PLL2CTL4 0x3c #define WM8753_BIASCTL 0x3d #define WM8753_ADCTL2 0x3f /* SCLK PA5 SPI1_SCK SDIN PA6 CSB PC5 */ #define wm_sclk_0 GPIO_ResetBits(GPIOA,GPIO_Pin_5) #define wm_sclk_1 GPIO_SetBits(GPIOA,GPIO_Pin_5) #define wm_sdin_0 GPIO_ResetBits(GPIOA,GPIO_Pin_7) #define wm_sdin_1 GPIO_SetBits(GPIOA,GPIO_Pin_7) #define wm_csb_0 GPIO_ResetBits(GPIOC,GPIO_Pin_5) #define wm_csb_1 GPIO_SetBits(GPIOC,GPIO_Pin_5) #define DATA_NODE_MAX 5 /* data node for Tx Mode */ struct wm8753_data_node { rt_uint16_t *data_ptr; rt_size_t data_size; }; struct wm8753_device { /* inherit from rt_device */ struct rt_device parent; /* pcm data list */ struct wm8753_data_node data_list[DATA_NODE_MAX]; rt_uint16_t read_index, put_index; /* transmitted offset of current data node */ rt_size_t offset; }; struct wm8753_device wm8753; static void NVIC_Configuration(void) { NVIC_InitTypeDef NVIC_InitStructure; /* SPI2 IRQ Channel configuration */ NVIC_InitStructure.NVIC_IRQChannel = SPI2_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); /* DMA1 IRQ Channel configuration */ NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel5_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); } static void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; SPI_InitTypeDef SPI_InitStructure; #define SPI_MASTER SPI1 #define SPI_MASTER_CLK RCC_APB2Periph_SPI1 #define SPI_MASTER_GPIO GPIOA #define SPI_MASTER_GPIO_CLK RCC_APB2Periph_GPIOA #define SPI_MASTER_PIN_SCK GPIO_Pin_5 #define SPI_MASTER_PIN_MISO GPIO_Pin_6 #define SPI_MASTER_PIN_MOSI GPIO_Pin_7 #define SPI_MASTER_IRQn SPI1_IRQn /* Disable the JTAG interface and enable the SWJ interface */ GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE); /* Enable SPI_MASTER Periph clock */ RCC_APB2PeriphClockCmd(SPI_MASTER_CLK, ENABLE); /* Configure SPI_MASTER pins: SCK, MISO and MOSI */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(SPI_MASTER_GPIO, &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOC,&GPIO_InitStructure); /* SPI_MASTER configuration ------------------------------------------------*/ SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;//SPI_Direction_1Line_Tx; SPI_InitStructure.SPI_Mode = SPI_Mode_Master; SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;/* 常态为低电平 */ SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge; /* SPI_CPHA_1Edge 从第一个沿开始送数据: 上升沿 SPI_CPHA_2Edge 从第二个沿开始送数据: 下降沿 */ SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_256; SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; SPI_InitStructure.SPI_CRCPolynomial = 7; SPI_Init(SPI1, &SPI_InitStructure); /* Enable SPI_MASTER */ SPI_Cmd(SPI1, ENABLE); SPI_CalculateCRC(SPI1, DISABLE); /* Configure SPI2 pins: CK, WS and SD */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_15; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_Init(GPIOB, &GPIO_InitStructure); #if 0 /* MCO configure */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOA,&GPIO_InitStructure); RCC_MCOConfig(RCC_MCO_HSE); #endif } #define SPI2_DR_Address 0x4000380C static void DMA_Configuration(rt_uint32_t addr, rt_size_t size) { DMA_InitTypeDef DMA_InitStructure; /* DMA1 Channel2 configuration ----------------------------------------------*/ DMA_Cmd(DMA1_Channel5, DISABLE); DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)SPI2_DR_Address; DMA_InitStructure.DMA_MemoryBaseAddr = (u32)addr; DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; DMA_InitStructure.DMA_BufferSize = size; DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; DMA_InitStructure.DMA_Priority = DMA_Priority_Low; DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; DMA_Init(DMA1_Channel5, &DMA_InitStructure); /* Enable SPI2 DMA Tx request */ SPI_I2S_DMACmd(SPI2, SPI_I2S_DMAReq_Tx, ENABLE); DMA_ITConfig(DMA1_Channel5, DMA_IT_TC, ENABLE); DMA_Cmd(DMA1_Channel5, ENABLE); } static void I2S_Configuration(void) { I2S_InitTypeDef I2S_InitStructure; /* I2S peripheral configuration */ I2S_InitStructure.I2S_Standard = I2S_Standard_Phillips; I2S_InitStructure.I2S_DataFormat = I2S_DataFormat_16b; I2S_InitStructure.I2S_MCLKOutput = I2S_MCLKOutput_Disable; I2S_InitStructure.I2S_AudioFreq = I2S_AudioFreq_44k; I2S_InitStructure.I2S_CPOL = I2S_CPOL_High;// I2S_CPOL_Low /* I2S2 Master Transmitter to I2S3 Slave Receiver communication -----------*/ /* I2S2 configuration */ I2S_InitStructure.I2S_Mode = I2S_Mode_MasterTx;//I2S_Mode_MasterTx I2S_Mode_SlaveTx I2S_Init(SPI2, &I2S_InitStructure); } #if 1 static void wm_delay(void) { volatile unsigned int dl; for(dl=0; dl<5000; dl++); } #endif void wm8753_send(rt_uint16_t s_data) { /* Wait for SPI1 Tx buffer empty */ while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET); wm_csb_0; /* Send SPI1 data */ SPI_I2S_SendData(SPI1, (s_data>>8)&0xFF ); /* Wait for SPI1 Tx buffer empty */ while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET); /* Send SPI1 data */ SPI_I2S_SendData(SPI1, s_data&0xFF); wm_delay(); wm_csb_1; #if 0 u8 i; wm_csb_0; //wm_delay(); wm_sclk_0; //wm_delay(); for (i=0;i<16;i++) { if (s_data & 0x8000) { wm_sdin_1; } else { wm_sdin_0; } //wm_delay(); wm_sclk_1; s_data <<= 1; //wm_delay(); wm_sclk_0; } //wm_delay(); wm_csb_1; #endif } static rt_err_t wm8753_init (rt_device_t dev) { wm8753_send(0xF00F); // test wm8753_send(0<<9 | 0xFF); // reset //wm_delay(); //wm_delay(); //wm_delay(); /* POWER manager */ wm8753_send(1<<9 | (1<<8) | (0<<7) | (0<<6) | (0<<5) | (1<<4) | (1<<3) | (1<<2) | 2 );//电源设置 wm8753_send(2<<9 | (1<<8) | (1<<7) | (1<<5) | (1<<4) | (1<<3) | (1<<2) ); // 打开电源 耳机输出 wm8753_send(3<<9 | (0<<8) | (0<<7) | (1<<6) | (1<<5) | (1<<3) | (1<<2) | (1<<1) | 1 ); // 喇叭输出和DAC /* IIS DAC test */ wm8753_send(4<<9 | (0<<7) | (2<<3) );//IIS 16BIT // 12.288/3/8=512K wm8753_send(6<<9 | (0<<5) | (3<<2)| 0);//0: slave 1: master | (3<<5) | (3<<2) wm8753_send(43<<9 | (1<<4) );//INVROUT2 /* 设置初始化音量 */ wm8753_send(52<<9 | (1<<8) | (1<<7) | 35 ); // LOUT1 0-57-63 wm8753_send(53<<9 | (1<<8) | (1<<7) | 35 ); // ROUT1 0-57-63 wm8753_send(54<<9 | (1<<8) | (1<<7) | 35 ); // LOUT2 0-57-63 wm8753_send(55<<9 | (1<<8) | (1<<7) | 35 ); // ROUT2 0-57-63 return RT_EOK; } #include //0~57~63 void vol(int v) { wm8753_send(52<<9 | (0<<8) | (1<<7) | v ); // LOUT1 0-57-63 wm8753_send(53<<9 | (1<<8) | (1<<7) | v ); // ROUT1 0-57-63 wm8753_send(54<<9 | (0<<8) | (1<<7) | v ); // LOUT2 0-57-63 wm8753_send(55<<9 | (1<<8) | (1<<7) | v ); // ROUT2 0-57-63 } FINSH_FUNCTION_EXPORT(vol, set volume) static rt_err_t wm8753_open(rt_device_t dev, rt_uint16_t oflag) { /* enable I2S */ I2S_Cmd(SPI2, ENABLE); return RT_EOK; } static rt_err_t wm8753_close(rt_device_t dev) { /* interrupt mode */ if (dev->flag & RT_DEVICE_FLAG_INT_TX) { /* Disable the I2S2 */ I2S_Cmd(SPI2, DISABLE); } /* remove all data node */ return RT_EOK; } static rt_err_t wm8753_control(rt_device_t dev, rt_uint8_t cmd, void *args) { /* rate control */ return RT_EOK; } static rt_size_t wm8753_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size) { struct wm8753_device* device; struct wm8753_data_node* node; rt_uint32_t level; rt_uint16_t next_index; device = (struct wm8753_device*)dev; RT_ASSERT(device != RT_NULL); next_index = device->put_index + 1; if (next_index >= DATA_NODE_MAX) next_index = 0; /* check data_list full */ if (next_index == device->read_index) { rt_set_errno(-RT_EFULL); return 0; } level = rt_hw_interrupt_disable(); node = &device->data_list[device->put_index]; device->put_index = next_index; // rt_kprintf("+\n"); /* set node attribute */ node->data_ptr = (rt_uint16_t*)buffer; node->data_size = size >> 1; /* size is byte unit, convert to half word unit */ next_index = device->read_index + 1; if (next_index >= DATA_NODE_MAX) next_index = 0; /* check data list whether is empty */ if (next_index == device->put_index) { if (dev->flag & RT_DEVICE_FLAG_INT_TX) { device->offset = 0; /* enable I2S interrupt */ SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_TXE, ENABLE); } else if (dev->flag & RT_DEVICE_FLAG_DMA_TX) { DMA_Configuration((rt_uint32_t)node->data_ptr, node->data_size); } } rt_hw_interrupt_enable(level); return size; } rt_err_t wm8753_hw_init(void) { rt_device_t dev; RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE); RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE); RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); NVIC_Configuration(); GPIO_Configuration(); I2S_Configuration(); dev = (rt_device_t)&wm8753; dev->type = RT_Device_Class_Unknown; dev->rx_indicate = RT_NULL; dev->tx_complete = RT_NULL; dev->init = wm8753_init; dev->open = wm8753_open; dev->close = wm8753_close; dev->read = RT_NULL; dev->write = wm8753_write; dev->control = wm8753_control; dev->private = RT_NULL; /* set read_index and put index to 0 */ wm8753.read_index = 0; wm8753.put_index = 0; wm_csb_1; #if 0 wm_sclk_0; wm_sclk_1; wm_sclk_0; wm_sdin_0; wm_sdin_1; wm_sdin_0; wm_csb_0; wm_csb_1; #endif /* register the device */ return rt_device_register(&wm8753.parent, "snd", RT_DEVICE_FLAG_WRONLY | RT_DEVICE_FLAG_DMA_TX); } void wm8753_isr() { struct wm8753_data_node* node; node = &wm8753.data_list[wm8753.read_index]; /* get current data node */ if (SPI_I2S_GetITStatus(SPI2, SPI_I2S_IT_TXE) == SET) { SPI_I2S_SendData(SPI2, node->data_ptr[wm8753.offset++]); } if (wm8753.offset == node->data_size) { /* move to next node */ rt_uint16_t next_index; next_index = wm8753.read_index + 1; if (next_index >= DATA_NODE_MAX) next_index = 0; /* notify transmitted complete. */ if (wm8753.parent.tx_complete != RT_NULL) { wm8753.parent.tx_complete (&wm8753.parent, wm8753.data_list[wm8753.read_index].data_ptr); rt_kprintf("-\n"); } wm8753.offset = 0; wm8753.read_index = next_index; if (next_index == wm8753.put_index) { /* no data on the list, disable I2S interrupt */ SPI_I2S_ITConfig(SPI2, SPI_I2S_IT_TXE, DISABLE); rt_kprintf("*\n"); } } } void wm8753_dma_isr() { /* switch to next buffer */ rt_uint16_t next_index; void* data_ptr; next_index = wm8753.read_index + 1; if (next_index >= DATA_NODE_MAX) next_index = 0; /* save current data pointer */ data_ptr = wm8753.data_list[wm8753.read_index].data_ptr; wm8753.read_index = next_index; if (next_index != wm8753.put_index) { /* enable next dma request */ DMA_Configuration((rt_uint32_t)wm8753.data_list[wm8753.read_index].data_ptr, wm8753.data_list[wm8753.read_index].data_size); } else { rt_kprintf("*\n"); } /* notify transmitted complete. */ if (wm8753.parent.tx_complete != RT_NULL) { wm8753.parent.tx_complete (&wm8753.parent, data_ptr); // rt_kprintf("-\n"); } }