Ken Van Hoeylandt 74127a5f6c
Add kernel drivers for SPI and UART and make locking APIs more consistent (#489)
- Add kernel support for SPI driver
- Add kernel support for UART driver
- Implemented ESP32 UART kernel driver
- Update existing UART-related code in Tactility to use new kernel driver
- Remove UART from tt::hal::Configuration
- Remove tt_hal_uart functionality but keep functions for now
- Update devicetrees for UART changes
- Kernel mutex and recursive mutex: improved locking API design
- Other kernel improvements
- Added device_exists_of_type() and device_find_by_name()
2026-02-07 21:28:11 +01:00

171 lines
7.9 KiB
C

// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include "gpio.h"
#include <tactility/freertos/freertos.h>
#include <tactility/error.h>
struct Device;
/**
* @brief API for I2C controller drivers.
*/
struct I2cControllerApi {
/**
* @brief Reads data from an I2C device.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[out] data the buffer to store the read data
* @param[in] dataSize the number of bytes to read
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the read operation was successful
* @retval ERROR_TIMEOUT when the operation timed out
*/
error_t (*read)(struct Device* device, uint8_t address, uint8_t* data, size_t dataSize, TickType_t timeout);
/**
* @brief Writes data to an I2C device.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] data the buffer containing the data to write
* @param[in] dataSize the number of bytes to write
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the write operation was successful
* @retval ERROR_TIMEOUT when the operation timed out
*/
error_t (*write)(struct Device* device, uint8_t address, const uint8_t* data, uint16_t dataSize, TickType_t timeout);
/**
* @brief Writes data to then reads data from an I2C device.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] writeData the buffer containing the data to write
* @param[in] writeDataSize the number of bytes to write
* @param[out] readData the buffer to store the read data
* @param[in] readDataSize the number of bytes to read
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the operation was successful
* @retval ERROR_TIMEOUT when the operation timed out
*/
error_t (*write_read)(struct Device* device, uint8_t address, const uint8_t* writeData, size_t writeDataSize, uint8_t* readData, size_t readDataSize, TickType_t timeout);
/**
* @brief Reads data from a register of an I2C device.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] reg the register address to read from
* @param[out] data the buffer to store the read data
* @param[in] dataSize the number of bytes to read
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the read operation was successful
* @retval ERROR_TIMEOUT when the operation timed out
*/
error_t (*read_register)(struct Device* device, uint8_t address, uint8_t reg, uint8_t* data, size_t dataSize, TickType_t timeout);
/**
* @brief Writes data to a register of an I2C device.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] reg the register address to write to
* @param[in] data the buffer containing the data to write
* @param[in] dataSize the number of bytes to write
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the write operation was successful
* @retval ERROR_TIMEOUT when the operation timed out
*/
error_t (*write_register)(struct Device* device, uint8_t address, uint8_t reg, const uint8_t* data, uint16_t dataSize, TickType_t timeout);
};
/**
* @brief Reads data from an I2C device using the specified controller.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[out] data the buffer to store the read data
* @param[in] dataSize the number of bytes to read
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the read operation was successful
*/
error_t i2c_controller_read(struct Device* device, uint8_t address, uint8_t* data, size_t dataSize, TickType_t timeout);
/**
* @brief Writes data to an I2C device using the specified controller.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] data the buffer containing the data to write
* @param[in] dataSize the number of bytes to write
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the write operation was successful
*/
error_t i2c_controller_write(struct Device* device, uint8_t address, const uint8_t* data, uint16_t dataSize, TickType_t timeout);
/**
* @brief Writes data to then reads data from an I2C device using the specified controller.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] writeData the buffer containing the data to write
* @param[in] writeDataSize the number of bytes to write
* @param[out] readData the buffer to store the read data
* @param[in] readDataSize the number of bytes to read
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the operation was successful
*/
error_t i2c_controller_write_read(struct Device* device, uint8_t address, const uint8_t* writeData, size_t writeDataSize, uint8_t* readData, size_t readDataSize, TickType_t timeout);
/**
* @brief Reads data from a register of an I2C device using the specified controller.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] reg the register address to read from
* @param[out] data the buffer to store the read data
* @param[in] dataSize the number of bytes to read
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the read operation was successful
*/
error_t i2c_controller_read_register(struct Device* device, uint8_t address, uint8_t reg, uint8_t* data, size_t dataSize, TickType_t timeout);
/**
* @brief Writes data to a register of an I2C device using the specified controller.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] reg the register address to write to
* @param[in] data the buffer containing the data to write
* @param[in] dataSize the number of bytes to write
* @param[in] timeout the maximum time to wait for the operation to complete
* @retval ERROR_NONE when the write operation was successful
*/
error_t i2c_controller_write_register(struct Device* device, uint8_t address, uint8_t reg, const uint8_t* data, uint16_t dataSize, TickType_t timeout);
/**
* @brief Writes an array of register-value pairs to an I2C device.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address of the slave device
* @param[in] data an array of bytes where even indices are register addresses and odd indices are values
* @param[in] dataSize the number of bytes in the data array (must be even)
* @param[in] timeout the maximum time to wait for each operation to complete
* @retval ERROR_NONE when all write operations were successful
*/
error_t i2c_controller_write_register_array(struct Device* device, uint8_t address, const uint8_t* data, uint16_t dataSize, TickType_t timeout);
/**
* @brief Checks if an I2C device is present at the specified address.
* @param[in] device the I2C controller device
* @param[in] address the 7-bit I2C address to check
* @param[in] timeout the maximum time to wait for the check to complete
* @retval ERROR_NONE when a device responded at the address
*/
error_t i2c_controller_has_device_at_address(struct Device* device, uint8_t address, TickType_t timeout);
extern const struct DeviceType I2C_CONTROLLER_TYPE;
#ifdef __cplusplus
}
#endif