/* * Copyright (c) 2006-2023, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2024-02-17 Dyyt587 first version */ #include #include #include #include "drv_hard_i2c.h" #include "drv_config.h" #include /* not fully support for I2C4 */ #if defined(BSP_USING_HARD_I2C1) || defined(BSP_USING_HARD_I2C2) || defined(BSP_USING_HARD_I2C3) //#define DRV_DEBUG #define LOG_TAG "drv.i2c.hw" #include enum { #ifdef BSP_USING_HARD_I2C1 I2C1_INDEX, #endif /* BSP_USING_HARD_I2C1 */ #ifdef BSP_USING_HARD_I2C2 I2C2_INDEX, #endif /* BSP_USING_HARD_I2C2 */ #ifdef BSP_USING_HARD_I2C3 I2C3_INDEX, #endif /* BSP_USING_HARD_I2C3 */ }; static struct stm32_i2c_config i2c_config[] = { #ifdef BSP_USING_HARD_I2C1 I2C1_BUS_CONFIG, #endif /* BSP_USING_HARD_I2C1 */ #ifdef BSP_USING_HARD_I2C2 I2C2_BUS_CONFIG, #endif /* BSP_USING_HARD_I2C2 */ #ifdef BSP_USING_HARD_I2C3 I2C3_BUS_CONFIG, #endif /* BSP_USING_HARD_I2C3 */ }; static struct stm32_i2c i2c_objs[sizeof(i2c_config) / sizeof(i2c_config[0])] = {0}; static rt_err_t stm32_i2c_init(struct stm32_i2c *i2c_drv) { RT_ASSERT(i2c_drv != RT_NULL); I2C_HandleTypeDef *i2c_handle = &i2c_drv->handle; rt_memset(i2c_handle, 0, sizeof(I2C_HandleTypeDef)); struct stm32_i2c_config *cfg = i2c_drv->config; i2c_handle->Instance = cfg->Instance; i2c_handle->Init.Timing = cfg->timing; i2c_handle->Init.OwnAddress1 = 0; i2c_handle->Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; i2c_handle->Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; i2c_handle->Init.OwnAddress2 = 0; i2c_handle->Init.OwnAddress2Masks = I2C_OA2_NOMASK; i2c_handle->Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; i2c_handle->Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_DeInit(i2c_handle) != HAL_OK) { return -RT_EFAULT; } if (HAL_I2C_Init(i2c_handle) != HAL_OK) { return -RT_EFAULT; } /* Configure Analogue filter */ if (HAL_I2CEx_ConfigAnalogFilter(i2c_handle, I2C_ANALOGFILTER_ENABLE) != HAL_OK) { return -RT_EFAULT; } /* Configure Digital filter */ if (HAL_I2CEx_ConfigDigitalFilter(i2c_handle, 0) != HAL_OK) { return -RT_EFAULT; } /* I2C2 DMA Init */ if (i2c_drv->i2c_dma_flag & I2C_USING_RX_DMA_FLAG) { HAL_DMA_Init(&i2c_drv->dma.handle_rx); __HAL_LINKDMA(&i2c_drv->handle, hdmarx, i2c_drv->dma.handle_rx); /* NVIC configuration for DMA transfer complete interrupt */ HAL_NVIC_SetPriority(i2c_drv->config->dma_rx->dma_irq, 0, 0); HAL_NVIC_EnableIRQ(i2c_drv->config->dma_rx->dma_irq); } if (i2c_drv->i2c_dma_flag & I2C_USING_TX_DMA_FLAG) { HAL_DMA_Init(&i2c_drv->dma.handle_tx); __HAL_LINKDMA(&i2c_drv->handle, hdmatx, i2c_drv->dma.handle_tx); /* NVIC configuration for DMA transfer complete interrupt */ HAL_NVIC_SetPriority(i2c_drv->config->dma_tx->dma_irq, 1, 0); HAL_NVIC_EnableIRQ(i2c_drv->config->dma_tx->dma_irq); } if (i2c_drv->i2c_dma_flag & I2C_USING_TX_DMA_FLAG || i2c_drv->i2c_dma_flag & I2C_USING_RX_DMA_FLAG) { HAL_NVIC_SetPriority(i2c_drv->config->evirq_type, 2, 0); HAL_NVIC_EnableIRQ(i2c_drv->config->evirq_type); } return RT_EOK; } static rt_err_t stm32_i2c_configure(struct rt_i2c_bus_device *bus) { int ret = -RT_ERROR; RT_ASSERT(RT_NULL != bus); struct stm32_i2c *i2c_drv = rt_container_of(bus, struct stm32_i2c, i2c_bus); return stm32_i2c_init(i2c_drv); } /** * @brief Hardware I2C driver transfer * * @param bus Device bus * @param msgs Data to be transferred * @param num Number of data * @return rt_ssize_t Transfer status */ static rt_ssize_t stm32_i2c_master_xfer(struct rt_i2c_bus_device *bus, struct rt_i2c_msg msgs[], rt_uint32_t num) { /* for stm32 dma may more stability */ #define DMA_TRANS_MIN_LEN 2 /* only buffer length >= DMA_TRANS_MIN_LEN will use DMA mode */ #define TRANS_TIMEOUT_PERSEC 8 /* per ms will trans nums bytes */ rt_int32_t i, ret; struct rt_i2c_msg *msg = msgs; struct rt_i2c_msg *next_msg = 0; struct stm32_i2c *i2c_obj; uint32_t mode = 0; uint8_t next_flag = 0; struct rt_completion *completion; rt_uint32_t timeout; if (num == 0) { return 0; } RT_ASSERT((msgs != RT_NULL) && (bus != RT_NULL)); i2c_obj = rt_container_of(bus, struct stm32_i2c, i2c_bus); completion = &i2c_obj->completion; I2C_HandleTypeDef *handle = &i2c_obj->handle; LOG_D("xfer start %d mags", num); for (i = 0; i < (num - 1); i++) { mode = 0; msg = &msgs[i]; LOG_D("xfer msgs[%d] addr=0x%2x buf=0x%x len= 0x%x flags= 0x%x", i, msg->addr, msg->buf, msg->len, msg->flags); next_msg = &msgs[i + 1]; next_flag = next_msg->flags; timeout = msg->len/TRANS_TIMEOUT_PERSEC + 1; if (next_flag & RT_I2C_NO_START) { if ((next_flag & RT_I2C_RD) == (msg->flags & RT_I2C_RD)) { /* The same mode, can use no start */ mode = I2C_FIRST_AND_NEXT_FRAME; } else { /* Not allowed to use no start, sending address is required when changing direction, user setting error */ LOG_W("user set flags error msg[%d] flags RT_I2C_NO_START has canceled", i + 1); mode = I2C_LAST_FRAME_NO_STOP; } } else { mode = I2C_LAST_FRAME_NO_STOP; } if (msg->flags & RT_I2C_RD) { LOG_D("xfer rec msgs[%d] hal mode = %s", i, mode == I2C_FIRST_AND_NEXT_FRAME ? "I2C_FIRST_AND_NEXT_FRAME" : mode == I2C_LAST_FRAME_NO_STOP ? "I2C_FIRST_FRAME/I2C_LAST_FRAME_NO_STOP" : mode == I2C_LAST_FRAME ? "I2C_LAST_FRAME" : "nuknown mode"); if ((i2c_obj->i2c_dma_flag & I2C_USING_RX_DMA_FLAG) && (msg->len >= DMA_TRANS_MIN_LEN)) { ret = HAL_I2C_Master_Seq_Receive_DMA(handle, (msg->addr<<1) , msg->buf, msg->len, mode); } else { ret = HAL_I2C_Master_Seq_Receive_IT(handle, (msg->addr<<1) , msg->buf, msg->len, mode); } if (ret != RT_EOK) { LOG_E("[%s:%d]I2C Read error(%d)!\n", __func__, __LINE__, ret); goto out; } if (rt_completion_wait(completion, timeout) != RT_EOK) { LOG_D("receive time out"); goto out; } } else { LOG_D("xfer trans msgs[%d] hal mode = %s", i, mode == I2C_FIRST_AND_NEXT_FRAME ? "I2C_FIRST_AND_NEXT_FRAME" : mode == I2C_LAST_FRAME_NO_STOP ? "I2C_FIRST_FRAME/I2C_LAST_FRAME_NO_STOP" : mode == I2C_LAST_FRAME ? "I2C_LAST_FRAME" : "nuknown mode"); if ((i2c_obj->i2c_dma_flag & I2C_USING_TX_DMA_FLAG) && (msg->len >= DMA_TRANS_MIN_LEN)) { ret = HAL_I2C_Master_Seq_Transmit_DMA(handle, (msg->addr<<1) , msg->buf, msg->len, mode); } else { ret = HAL_I2C_Master_Seq_Transmit_IT(handle, (msg->addr<<1) , msg->buf, msg->len, mode); } if (ret != RT_EOK) { LOG_D("[%s:%d]I2C Write error(%d)!\n", __func__, __LINE__, ret); goto out; } if (rt_completion_wait(completion, timeout) != RT_EOK) { LOG_D("transmit time out"); goto out; } } LOG_D("xfer next msgs[%d] addr=0x%2x buf= 0x%x len= 0x%x flags = 0x%x\r\n", i + 1, next_msg->addr, next_msg->buf, next_msg->len, next_msg->flags); } /* last msg */ msg = &msgs[i]; timeout = msg->len/TRANS_TIMEOUT_PERSEC+1; if (msg->flags & RT_I2C_NO_STOP) mode = I2C_LAST_FRAME_NO_STOP; else mode = I2C_LAST_FRAME; LOG_D("xfer last msgs[%d] addr=0x%2x buf= 0x%x len= 0x%x flags = 0x%x", i, msg->addr, msg->buf, msg->len, msg->flags); if (msg->flags & RT_I2C_RD) { LOG_D("xfer rec msgs[%d] hal mode=%s", i, mode == I2C_FIRST_AND_NEXT_FRAME ? "I2C_FIRST_AND_NEXT_FRAME" : mode == I2C_LAST_FRAME_NO_STOP ? "I2C_FIRST_FRAME/I2C_LAST_FRAME_NO_STOP" : mode == I2C_LAST_FRAME ? "I2C_LAST_FRAME" : "nuknown mode"); if ((i2c_obj->i2c_dma_flag & I2C_USING_RX_DMA_FLAG) && (msg->len >= DMA_TRANS_MIN_LEN)) { ret = HAL_I2C_Master_Seq_Receive_DMA(handle, (msg->addr<<1) , msg->buf, msg->len, mode); } else { ret = HAL_I2C_Master_Seq_Receive_IT(handle,(msg->addr<<1) , msg->buf, msg->len, mode); } if (ret != RT_EOK) { LOG_D("[%s:%d]I2C Read error(%d)!\n", __func__, __LINE__, ret); goto out; } if (rt_completion_wait(completion, timeout) != RT_EOK) { LOG_D("receive time out"); goto out; } } else { LOG_D("xfer trans msgs[%d] hal mode = %s", i, mode == I2C_FIRST_AND_NEXT_FRAME ? "I2C_FIRST_AND_NEXT_FRAME" : mode == I2C_LAST_FRAME ? "I2C_LAST_FRAME" : mode == I2C_LAST_FRAME_NO_STOP ? "I2C_FIRST_FRAME/I2C_LAST_FRAME_NO_STOP" : "nuknown mode"); if ((i2c_obj->i2c_dma_flag & I2C_USING_TX_DMA_FLAG) && (msg->len >= DMA_TRANS_MIN_LEN)) { ret = HAL_I2C_Master_Seq_Transmit_DMA(handle, (msg->addr<<1) , msg->buf, msg->len, mode); } else { ret = HAL_I2C_Master_Seq_Transmit_IT(handle, (msg->addr<<1) , msg->buf, msg->len, mode); } if (ret != RT_EOK) { LOG_D("[%s:%d]I2C Write error(%d)!\n", __func__, __LINE__, ret); goto out; } if (rt_completion_wait(completion, timeout) != RT_EOK) { LOG_D("transmit time out"); goto out; } } ret = num; LOG_D("xfer end %d mags\r\n", num); return ret; out: if (handle->ErrorCode == HAL_I2C_ERROR_AF) { LOG_D("I2C NACK Error now stoped"); /* Send stop signal to prevent bus lock-up */ handle->Instance->CR1 |= I2C_IT_STOPI; } if (handle->ErrorCode == HAL_I2C_ERROR_BERR) { LOG_D("I2C BUS Error now stoped"); handle->Instance->CR1 |= I2C_IT_STOPI; ret=i-1; return ret; } static const struct rt_i2c_bus_device_ops stm32_i2c_ops = { .master_xfer = stm32_i2c_master_xfer, RT_NULL, RT_NULL }; int RT_hw_i2c_bus_init(void) { int ret = -RT_ERROR; rt_size_t obj_num = sizeof(i2c_objs) / sizeof(i2c_objs[0]); for (int i = 0; i < obj_num; i++) { i2c_objs[i].i2c_bus.ops = &stm32_i2c_ops; i2c_objs[i].config = &i2c_config[i]; i2c_objs[i].i2c_bus.timeout = i2c_config[i].timeout; if (i2c_objs[i].i2c_dma_flag & I2C_USING_TX_DMA_FLAG) { i2c_objs[i].dma.handle_tx.Instance = i2c_config[i].dma_tx->Instance; #if defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) i2c_objs[i].dma.handle_tx.Init.Channel = i2c_config[i].dma_tx->channel; #elif defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32WB) || defined(SOC_SERIES_STM32H7) i2c_objs[i].dma.handle_tx.Init.Request = i2c_config[i].dma_tx->request; #endif /* defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) */ #ifndef SOC_SERIES_STM32U5 i2c_objs[i].dma.handle_tx.Init.Direction = DMA_MEMORY_TO_PERIPH; i2c_objs[i].dma.handle_tx.Init.PeriphInc = DMA_PINC_DISABLE; i2c_objs[i].dma.handle_tx.Init.MemInc = DMA_MINC_ENABLE; i2c_objs[i].dma.handle_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; i2c_objs[i].dma.handle_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; i2c_objs[i].dma.handle_tx.Init.Mode = DMA_NORMAL; i2c_objs[i].dma.handle_tx.Init.Priority = DMA_PRIORITY_LOW; #endif #if defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32H7) i2c_objs[i].dma.handle_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; i2c_objs[i].dma.handle_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; i2c_objs[i].dma.handle_tx.Init.MemBurst = DMA_MBURST_INC4; i2c_objs[i].dma.handle_tx.Init.PeriphBurst = DMA_PBURST_INC4; #endif /* defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32H7) */ } if ((i2c_objs[i].i2c_dma_flag & I2C_USING_RX_DMA_FLAG)) { i2c_objs[i].dma.handle_rx.Instance = i2c_config[i].dma_rx->Instance; #if defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) i2c_objs[i].dma.handle_rx.Init.Channel = i2c_config[i].dma_rx->channel; #elif defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32WB) || defined(SOC_SERIES_STM32H7) i2c_objs[i].dma.handle_rx.Init.Request = i2c_config[i].dma_rx->request; #endif /* defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) */ #ifndef SOC_SERIES_STM32U5 i2c_objs[i].dma.handle_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; i2c_objs[i].dma.handle_rx.Init.PeriphInc = DMA_PINC_DISABLE; i2c_objs[i].dma.handle_rx.Init.MemInc = DMA_MINC_ENABLE; i2c_objs[i].dma.handle_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE; i2c_objs[i].dma.handle_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE; i2c_objs[i].dma.handle_rx.Init.Mode = DMA_NORMAL; i2c_objs[i].dma.handle_rx.Init.Priority = DMA_PRIORITY_LOW; #endif /* SOC_SERIES_STM32U5 */ #if defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32H7) i2c_objs[i].dma.handle_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; i2c_objs[i].dma.handle_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; i2c_objs[i].dma.handle_tx.Init.MemBurst = DMA_MBURST_INC4; i2c_objs[i].dma.handle_tx.Init.PeriphBurst = DMA_PBURST_INC4; } #endif /* defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32H7) */ { rt_uint32_t tmpreg = 0x00U; #if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32F0) /* enable DMA clock && Delay after an RCC peripheral clock enabling*/ SET_BIT(RCC->AHBENR, i2c_config[i].dma_tx->dma_rcc); tmpreg = READ_BIT(RCC->AHBENR, i2c_config[i].dma_tx->dma_rcc); #elif defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WB) || defined(SOC_SERIES_STM32H7) SET_BIT(RCC->AHB1ENR, i2c_config[i].dma_tx->dma_rcc); /* Delay after an RCC peripheral clock enabling */ tmpreg = READ_BIT(RCC->AHB1ENR, i2c_config[i].dma_tx->dma_rcc); #elif defined(SOC_SERIES_STM32MP1) __HAL_RCC_DMAMUX_CLK_ENABLE(); SET_BIT(RCC->MP_AHB2ENSETR, i2c_config[i].dma_tx->dma_rcc); tmpreg = READ_BIT(RCC->MP_AHB2ENSETR, i2c_config[i].dma_tx->dma_rcc); #endif /* defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32F0) */ UNUSED(tmpreg); /* To avoid compiler warnings */ } rt_completion_init(&i2c_objs[i].completion); stm32_i2c_configure(&i2c_objs[i].i2c_bus); ret = rt_i2c_bus_device_register(&i2c_objs[i].i2c_bus, i2c_objs[i].config->name); RT_ASSERT(ret == RT_EOK); LOG_D("%s bus init done", i2c_config[i].name); } return ret; } static void stm32_get_dma_info(void) { #ifdef BSP_I2C1_RX_USING_DMA i2c_objs[I2C1_INDEX].i2c_dma_flag |= I2C_USING_RX_DMA_FLAG; static struct dma_config I2C1_dma_rx = I2C1_RX_DMA_CONFIG; i2c_config[I2C1_INDEX].dma_rx = &I2C1_dma_rx; #endif /* BSP_I2C1_RX_USING_DMA */ #ifdef BSP_I2C1_TX_USING_DMA i2c_objs[I2C1_INDEX].i2c_dma_flag |= I2C_USING_TX_DMA_FLAG; static struct dma_config I2C1_dma_tx = I2C1_TX_DMA_CONFIG; i2c_config[I2C1_INDEX].dma_tx = &I2C1_dma_tx; #endif /* BSP_I2C1_TX_USING_DMA */ #ifdef BSP_I2C2_RX_USING_DMA i2c_objs[I2C2_INDEX].i2c_dma_flag |= I2C_USING_RX_DMA_FLAG; static struct dma_config I2C2_dma_rx = I2C2_RX_DMA_CONFIG; i2c_config[I2C2_INDEX].dma_rx = &I2C2_dma_rx; #endif /* BSP_I2C2_RX_USING_DMA */ #ifdef BSP_I2C2_TX_USING_DMA i2c_objs[I2C2_INDEX].i2c_dma_flag |= I2C_USING_TX_DMA_FLAG; static struct dma_config I2C2_dma_tx = I2C2_TX_DMA_CONFIG; i2c_config[I2C2_INDEX].dma_tx = &I2C2_dma_tx; #endif /* BSP_I2C2_TX_USING_DMA */ #ifdef BSP_I2C3_RX_USING_DMA i2c_objs[I2C3_INDEX].i2c_dma_flag |= I2C_USING_RX_DMA_FLAG; static struct dma_config I2C3_dma_rx = I2C3_RX_DMA_CONFIG; i2c_config[I2C3_INDEX].dma_rx = &I2C3_dma_rx; #endif /* BSP_I2C3_RX_USING_DMA */ #ifdef BSP_I2C3_TX_USING_DMA i2c_objs[I2C3_INDEX].i2c_dma_flag |= I2C_USING_TX_DMA_FLAG; static struct dma_config I2C3_dma_tx = I2C3_TX_DMA_CONFIG; i2c_config[I2C3_INDEX].dma_tx = &I2C3_dma_tx; #endif /* BSP_I2C3_TX_USING_DMA */ } void HAL_I2C_MasterTxCpltCallback(I2C_HandleTypeDef *hi2c) { struct stm32_i2c *i2c_drv = rt_container_of(hi2c, struct stm32_i2c, handle); rt_completion_done(&i2c_drv->completion); } void HAL_I2C_MasterRxCpltCallback(I2C_HandleTypeDef *hi2c) { struct stm32_i2c *i2c_drv = rt_container_of(hi2c, struct stm32_i2c, handle); rt_completion_done(&i2c_drv->completion); } void HAL_I2C_ErrorCallback(I2C_HandleTypeDef *hi2c) { /* Send stop signal to prevent bus lock-up */ if (hi2c->ErrorCode == HAL_I2C_ERROR_AF) { LOG_D("I2C NACK Error now stoped"); hi2c->Instance->CR1 |= I2C_IT_STOPI; } if (hi2c->ErrorCode == HAL_I2C_ERROR_BERR) { LOG_D("I2C BUS Error now stoped"); hi2c->Instance->CR1 |= I2C_IT_STOPI; } } #ifdef BSP_USING_HARD_I2C1 /** * @brief This function handles I2C2 event interrupt. */ void I2C1_EV_IRQHandler(void) { /* USER CODE BEGIN I2C2_EV_IRQn 0 */ /* enter interrupt */ rt_interrupt_enter(); /* USER CODE END I2C2_EV_IRQn 0 */ HAL_I2C_EV_IRQHandler(&i2c_objs[I2C1_INDEX].handle); /* USER CODE BEGIN I2C2_EV_IRQn 1 */ /* leave interrupt */ rt_interrupt_leave(); /* USER CODE END I2C2_EV_IRQn 1 */ } /** * @brief This function handles I2C2 error interrupt. */ void I2C1_ER_IRQHandler(void) { /* USER CODE BEGIN I2C2_ER_IRQn 0 */ /* enter interrupt */ rt_interrupt_enter(); /* USER CODE END I2C2_ER_IRQn 0 */ HAL_I2C_ER_IRQHandler(&i2c_objs[I2C1_INDEX].handle); /* USER CODE BEGIN I2C2_ER_IRQn 1 */ /* leave interrupt */ rt_interrupt_leave(); /* USER CODE END I2C2_ER_IRQn 1 */ } #endif /* BSP_USING_HARD_I2C1 */ #ifdef BSP_USING_HARD_I2C2 /** * @brief This function handles I2C2 event interrupt. */ void I2C2_EV_IRQHandler(void) { /* USER CODE BEGIN I2C2_EV_IRQn 0 */ /* enter interrupt */ rt_interrupt_enter(); /* USER CODE END I2C2_EV_IRQn 0 */ HAL_I2C_EV_IRQHandler(&i2c_objs[I2C2_INDEX].handle); /* USER CODE BEGIN I2C2_EV_IRQn 1 */ /* leave interrupt */ rt_interrupt_leave(); /* USER CODE END I2C2_EV_IRQn 1 */ } /** * @brief This function handles I2C2 error interrupt. */ void I2C2_ER_IRQHandler(void) { /* USER CODE BEGIN I2C2_ER_IRQn 0 */ /* enter interrupt */ rt_interrupt_enter(); /* USER CODE END I2C2_ER_IRQn 0 */ HAL_I2C_ER_IRQHandler(&i2c_objs[I2C2_INDEX].handle); /* USER CODE BEGIN I2C2_ER_IRQn 1 */ /* leave interrupt */ rt_interrupt_leave(); /* USER CODE END I2C2_ER_IRQn 1 */ } #endif /* BSP_USING_HARD_I2C2 */ #ifdef BSP_USING_HARD_I2C3 /** * @brief This function handles I2C2 event interrupt. */ void I2C3_EV_IRQHandler(void) { /* USER CODE BEGIN I2C2_EV_IRQn 0 */ /* enter interrupt */ rt_interrupt_enter(); /* USER CODE END I2C2_EV_IRQn 0 */ HAL_I2C_EV_IRQHandler(&i2c_objs[I2C3_INDEX].handle); /* USER CODE BEGIN I2C2_EV_IRQn 1 */ /* leave interrupt */ rt_interrupt_leave(); /* USER CODE END I2C2_EV_IRQn 1 */ } /** * @brief This function handles I2C2 error interrupt. */ void I2C3_ER_IRQHandler(void) { /* USER CODE BEGIN I2C2_ER_IRQn 0 */ /* enter interrupt */ rt_interrupt_enter(); /* USER CODE END I2C2_ER_IRQn 0 */ HAL_I2C_ER_IRQHandler(&i2c_objs[I2C3_INDEX].handle); /* USER CODE BEGIN I2C2_ER_IRQn 1 */ /* leave interrupt */ rt_interrupt_leave(); /* USER CODE END I2C2_ER_IRQn 1 */ } #endif /* BSP_USING_HARD_I2C3 */ #if defined(BSP_USING_HARD_I2C1) && defined(BSP_I2C1_RX_USING_DMA) /** * @brief This function handles DMA Rx interrupt request. * @param None * @retval None */ void I2C1_DMA_RX_IRQHandler(void) { /* enter interrupt */ rt_interrupt_enter(); HAL_DMA_IRQHandler(&i2c_objs[I2C1_INDEX].dma.handle_rx); /* leave interrupt */ rt_interrupt_leave(); } #endif /* defined(BSP_USING_HARD_I2C1) && defined(BSP_I2C1_RX_USING_DMA) */ #if defined(BSP_USING_HARD_I2C1) && defined(BSP_I2C1_TX_USING_DMA) /** * @brief This function handles DMA Rx interrupt request. * @param None * @retval None */ void I2C1_DMA_TX_IRQHandler(void) { /* enter interrupt */ rt_interrupt_enter(); HAL_DMA_IRQHandler(&i2c_objs[I2C1_INDEX].dma.handle_tx); /* leave interrupt */ rt_interrupt_leave(); } #endif /* defined(BSP_USING_HARD_I2C1) && defined(BSP_I2C1_TX_USING_DMA) */ #if defined(BSP_USING_HARD_I2C2) && defined(BSP_I2C2_RX_USING_DMA) /** * @brief This function handles DMA Rx interrupt request. * @param None * @retval None */ void I2C2_DMA_RX_IRQHandler(void) { /* enter interrupt */ rt_interrupt_enter(); HAL_DMA_IRQHandler(&i2c_objs[I2C2_INDEX].dma.handle_rx); /* leave interrupt */ rt_interrupt_leave(); } #endif /* defined(BSP_USING_HARD_I2C2) && defined(BSP_I2C2_RX_USING_DMA) */ #if defined(BSP_USING_HARD_I2C2) && defined(BSP_I2C2_TX_USING_DMA) /** * @brief This function handles DMA Rx interrupt request. * @param None * @retval None */ void I2C2_DMA_TX_IRQHandler(void) { /* enter interrupt */ rt_interrupt_enter(); HAL_DMA_IRQHandler(&i2c_objs[I2C2_INDEX].dma.handle_tx); /* leave interrupt */ rt_interrupt_leave(); } #endif /* defined(BSP_USING_HARD_I2C2) && defined(BSP_I2C2_TX_USING_DMA) */ #if defined(BSP_USING_HARD_I2C3) && defined(BSP_I2C3_RX_USING_DMA) /** * @brief This function handles DMA Rx interrupt request. * @param None * @retval None */ void I2C3_DMA_RX_IRQHandler(void) { /* enter interrupt */ rt_interrupt_enter(); HAL_DMA_IRQHandler(&i2c_objs[I2C3_INDEX].dma.handle_rx); /* leave interrupt */ rt_interrupt_leave(); } #endif /* defined(BSP_USING_HARD_I2C3) && defined(BSP_I2C3_RX_USING_DMA) */ #if defined(BSP_USING_HARD_I2C3) && defined(BSP_I2C3_TX_USING_DMA) /** * @brief This function handles DMA Rx interrupt request. * @param None * @retval None */ void I2C3_DMA_TX_IRQHandler(void) { /* enter interrupt */ rt_interrupt_enter(); HAL_DMA_IRQHandler(&i2c_objs[I2C3_INDEX].dma.handle_tx); /* leave interrupt */ rt_interrupt_leave(); } #endif /* defined(BSP_USING_HARD_I2C3) && defined(BSP_I2C3_TX_USING_DMA) */ #if defined(BSP_USING_I2C4) && defined(BSP_I2C4_RX_USING_DMA) /** * @brief This function handles DMA Rx interrupt request. * @param None * @retval None */ void I2C4_DMA_RX_IRQHandler(void) { /* enter interrupt */ rt_interrupt_enter(); HAL_DMA_IRQHandler(&i2c_objs[I2C4_INDEX].dma.handle_rx); /* leave interrupt */ rt_interrupt_leave(); } #endif /* defined(BSP_USING_I2C4) && defined(BSP_I2C4_RX_USING_DMA) */ #if defined(BSP_USING_I2C4) && defined(BSP_I2C4_TX_USING_DMA) /** * @brief This function handles DMA Rx interrupt request. * @param None * @retval None */ void I2C4_DMA_TX_IRQHandler(void) { /* enter interrupt */ rt_interrupt_enter(); HAL_DMA_IRQHandler(&i2c_objs[I2C4_INDEX].dma.handle_tx); /* leave interrupt */ rt_interrupt_leave(); } #endif /* defined(BSP_USING_I2C4) && defined(BSP_I2C4_TX_USING_DMA) */ int rt_hw_hw_i2c_init(void) { stm32_get_dma_info(); return RT_hw_i2c_bus_init(); } INIT_CORE_EXPORT(rt_hw_hw_i2c_init); #endif /* defined(BSP_USING_HARD_I2C1) || defined(BSP_USING_HARD_I2C2) || defined(BSP_USING_HARD_I2C3) */