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rt-thread-official/bsp/stm32/libraries/HAL_Drivers/drivers/drv_hard_i2c.c

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/*
* 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 <rtthread.h>
#include <rthw.h>
#include <board.h>
#include "drv_hard_i2c.h"
#include "drv_config.h"
#include <string.h>
/* 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 <drv_log.h>
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) */
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