ICM42670_stm32_hal.c File Reference

STM32 HAL SPI, I2C, and I3C transport adapters. More...

#include "ICM42670_stm32_hal.h"
#include <stddef.h>
#include <stdint.h>

Include dependency graph for ICM42670_stm32_hal.c:

Macros
#define	ICM42670_STM32_SPI_READ_BIT   0x80U
#define	ICM42670_STM32_SPI_MAX_TRANSFER_LEN   16U

Functions
ICM42670_Status_t	ICM42670_STM32_SPI_INIT (ICM42670_Config *config, ICM42670_STM32_SPIBus *bus, SPI_HandleTypeDef *hspi, GPIO_TypeDef *cs_port, uint16_t cs_pin)
	Configure an ICM42670_Config for STM32 HAL SPI access.
int8_t	ICM42670_STM32_SPI_ReadReg (void *handle, uint8_t reg_addr, uint8_t *data, uint16_t len)
	STM32 SPI register-read callback for ICM42670_Config.
int8_t	ICM42670_STM32_SPI_WriteReg (void *handle, uint8_t reg_addr, const uint8_t *data, uint16_t len)
	STM32 SPI register-write callback for ICM42670_Config.

Detailed Description

STM32 HAL SPI, I2C, and I3C transport adapters.

Function Documentation

ICM42670_STM32_SPI_INIT()

ICM42670_Status_t ICM42670_STM32_SPI_INIT	(	ICM42670_Config *	config,
		ICM42670_STM32_SPIBus *	bus,
		SPI_HandleTypeDef *	hspi,
		GPIO_TypeDef *	cs_port,
		uint16_t	cs_pin
	)

Configure an ICM42670_Config for STM32 HAL SPI access.

This helper stores bus state, drives chip-select high, and installs the SPI read/write callbacks plus HAL_Delay.

Parameters

config	Driver configuration to populate.
bus	SPI bus state owned by the caller.
hspi	Initialized STM32 HAL SPI handle.
cs_port	Chip-select GPIO port.
cs_pin	Chip-select GPIO pin.

Returns

ICM42670_OK on success, otherwise ICM42670_ERROR.

References ICM42670_STM32_SPIBus::cs_pin, ICM42670_STM32_SPIBus::cs_port, ICM42670_Config::delay_ms, ICM42670_Config::handle, ICM42670_STM32_SPIBus::hspi, ICM42670_ERROR, ICM42670_OK, ICM42670_STM32_SPI_ReadReg(), ICM42670_STM32_SPI_WriteReg(), ICM42670_Config::read_reg, ICM42670_STM32_SPIBus::timeout_ms, and ICM42670_Config::write_reg.

ICM42670_STM32_SPI_ReadReg()

int8_t ICM42670_STM32_SPI_ReadReg	(	void *	handle,
		uint8_t	reg_addr,
		uint8_t *	data,
		uint16_t	len
	)

STM32 SPI register-read callback for ICM42670_Config.

Parameters

handle	Pointer to ICM42670_STM32_SPIBus.
reg_addr	Register address to read from.
data	Destination buffer.
len	Number of bytes to read.

Returns

ICM42670_OK on success, otherwise ICM42670_ERROR.

References ICM42670_STM32_SPIBus::cs_port, ICM42670_STM32_SPIBus::hspi, ICM42670_ERROR, and ICM42670_OK.

Referenced by ICM42670_STM32_SPI_INIT().

ICM42670_STM32_SPI_WriteReg()

int8_t ICM42670_STM32_SPI_WriteReg	(	void *	handle,
		uint8_t	reg_addr,
		const uint8_t *	data,
		uint16_t	len
	)

STM32 SPI register-write callback for ICM42670_Config.

Parameters

handle	Pointer to ICM42670_STM32_SPIBus.
reg_addr	Register address to write to.
data	Source buffer.
len	Number of bytes to write.

Returns

ICM42670_OK on success, otherwise ICM42670_ERROR.

References ICM42670_STM32_SPIBus::cs_port, ICM42670_STM32_SPIBus::hspi, ICM42670_ERROR, and ICM42670_OK.

Referenced by ICM42670_STM32_SPI_INIT().