#include "stm32h7xx_ll_rcc.h"
#include "stm32h7xx_ll_bus.h"
#include "stm32h7xx_ll_dma.h"
#include "stm32h7xx_ll_i2c.h"
#include "stm32h7xx_ll_gpio.h"


/**
  * @brief I2C1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_I2C1_Init(void)
{

	/* USER CODE BEGIN I2C1_Init 0 */

	/* USER CODE END I2C1_Init 0 */

	LL_I2C_InitTypeDef I2C_InitStruct = { 0 };

	LL_GPIO_InitTypeDef GPIO_InitStruct = { 0 };

	LL_RCC_SetI2CClockSource(LL_RCC_I2C123_CLKSOURCE_PCLK1);

	LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOB);
	/**I2C1 GPIO Configuration
	PB8   ------> I2C1_SCL
	PB9   ------> I2C1_SDA
	*/
	GPIO_InitStruct.Pin = LL_GPIO_PIN_8 | LL_GPIO_PIN_9;
	GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
	GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
	GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
	GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
	GPIO_InitStruct.Alternate = LL_GPIO_AF_4;
	LL_GPIO_Init(GPIOB, &GPIO_InitStruct);

	/* Peripheral clock enable */
	LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);

	/* I2C1 DMA Init */

	/* I2C1_RX Init */
	LL_DMA_SetPeriphRequest(DMA1, LL_DMA_STREAM_6, LL_DMAMUX1_REQ_I2C1_RX);

	LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_STREAM_6, LL_DMA_DIRECTION_PERIPH_TO_MEMORY);

	LL_DMA_SetStreamPriorityLevel(DMA1, LL_DMA_STREAM_6, LL_DMA_PRIORITY_LOW);

	LL_DMA_SetMode(DMA1, LL_DMA_STREAM_6, LL_DMA_MODE_NORMAL);

	LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_STREAM_6, LL_DMA_PERIPH_NOINCREMENT);

	LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_STREAM_6, LL_DMA_MEMORY_INCREMENT);

	LL_DMA_SetPeriphSize(DMA1, LL_DMA_STREAM_6, LL_DMA_PDATAALIGN_BYTE);

	LL_DMA_SetMemorySize(DMA1, LL_DMA_STREAM_6, LL_DMA_MDATAALIGN_BYTE);

	LL_DMA_DisableFifoMode(DMA1, LL_DMA_STREAM_6);

	/* I2C1_TX Init */
	LL_DMA_SetPeriphRequest(DMA1, LL_DMA_STREAM_7, LL_DMAMUX1_REQ_I2C1_TX);

	LL_DMA_SetDataTransferDirection(DMA1, LL_DMA_STREAM_7, LL_DMA_DIRECTION_MEMORY_TO_PERIPH);

	LL_DMA_SetStreamPriorityLevel(DMA1, LL_DMA_STREAM_7, LL_DMA_PRIORITY_LOW);

	LL_DMA_SetMode(DMA1, LL_DMA_STREAM_7, LL_DMA_MODE_NORMAL);

	LL_DMA_SetPeriphIncMode(DMA1, LL_DMA_STREAM_7, LL_DMA_PERIPH_NOINCREMENT);

	LL_DMA_SetMemoryIncMode(DMA1, LL_DMA_STREAM_7, LL_DMA_MEMORY_INCREMENT);

	LL_DMA_SetPeriphSize(DMA1, LL_DMA_STREAM_7, LL_DMA_PDATAALIGN_BYTE);

	LL_DMA_SetMemorySize(DMA1, LL_DMA_STREAM_7, LL_DMA_MDATAALIGN_BYTE);

	LL_DMA_DisableFifoMode(DMA1, LL_DMA_STREAM_7);

	/* I2C1 interrupt Init */
	NVIC_SetPriority(I2C1_EV_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 0, 0));
	NVIC_EnableIRQ(I2C1_EV_IRQn);
	NVIC_SetPriority(I2C1_ER_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 0, 0));
	NVIC_EnableIRQ(I2C1_ER_IRQn);

	/* USER CODE BEGIN I2C1_Init 1 */

	/* USER CODE END I2C1_Init 1 */
	/** I2C Initialization
	*/
	LL_I2C_EnableAutoEndMode(I2C1);
	LL_I2C_SetOwnAddress2(I2C1, 0, LL_I2C_OWNADDRESS2_NOMASK);
	LL_I2C_DisableOwnAddress2(I2C1);
	LL_I2C_DisableGeneralCall(I2C1);
	LL_I2C_EnableClockStretching(I2C1);
	I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
	I2C_InitStruct.Timing = 0x00707CBB;
	I2C_InitStruct.AnalogFilter = LL_I2C_ANALOGFILTER_ENABLE;
	I2C_InitStruct.DigitalFilter = 0;
	I2C_InitStruct.OwnAddress1 = 0;
	I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
	I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
	LL_I2C_Init(I2C1, &I2C_InitStruct);
	/* USER CODE BEGIN I2C1_Init 2 */

	/* USER CODE END I2C1_Init 2 */

}

/**
  * @brief I2C2 Initialization Function
  * @param None
  * @retval None
  */
static void MX_I2C2_Init(void)
{

	/* USER CODE BEGIN I2C2_Init 0 */

	/* USER CODE END I2C2_Init 0 */

	LL_I2C_InitTypeDef I2C_InitStruct = { 0 };

	LL_GPIO_InitTypeDef GPIO_InitStruct = { 0 };

	LL_RCC_SetI2CClockSource(LL_RCC_I2C123_CLKSOURCE_PCLK1);

	LL_AHB4_GRP1_EnableClock(LL_AHB4_GRP1_PERIPH_GPIOB);
	/**I2C2 GPIO Configuration
	PB10   ------> I2C2_SCL
	PB11   ------> I2C2_SDA
	*/
	GPIO_InitStruct.Pin = LL_GPIO_PIN_10 | LL_GPIO_PIN_11;
	GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
	GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
	GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
	GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
	GPIO_InitStruct.Alternate = LL_GPIO_AF_4;
	LL_GPIO_Init(GPIOB, &GPIO_InitStruct);

	/* Peripheral clock enable */
	LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C2);

	/* I2C2 interrupt Init */
	NVIC_SetPriority(I2C2_EV_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 0, 0));
	NVIC_EnableIRQ(I2C2_EV_IRQn);
	NVIC_SetPriority(I2C2_ER_IRQn, NVIC_EncodePriority(NVIC_GetPriorityGrouping(), 0, 0));
	NVIC_EnableIRQ(I2C2_ER_IRQn);

	/* USER CODE BEGIN I2C2_Init 1 */

	/* USER CODE END I2C2_Init 1 */
	/** I2C Initialization
	*/
	LL_I2C_EnableAutoEndMode(I2C2);
	LL_I2C_SetOwnAddress2(I2C2, 0, LL_I2C_OWNADDRESS2_NOMASK);
	LL_I2C_DisableOwnAddress2(I2C2);
	LL_I2C_DisableGeneralCall(I2C2);
	LL_I2C_EnableClockStretching(I2C2);
	I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
	I2C_InitStruct.Timing = 0x00707CBB;
	I2C_InitStruct.AnalogFilter = LL_I2C_ANALOGFILTER_ENABLE;
	I2C_InitStruct.DigitalFilter = 0;
	I2C_InitStruct.OwnAddress1 = 0;
	I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
	I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
	LL_I2C_Init(I2C2, &I2C_InitStruct);
	/* USER CODE BEGIN I2C2_Init 2 */

	/* USER CODE END I2C2_Init 2 */

}