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

73 lines
2.0 KiB
C

// SPDX-License-Identifier: Apache-2.0
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <stddef.h>
#include <tactility/freertos/freertos.h>
#include <tactility/error.h>
struct Device;
/**
* @brief API for SPI controller drivers.
*/
struct SpiControllerApi {
/**
* @brief Locks the SPI controller.
* @param[in] device the SPI controller device
* @retval ERROR_NONE when the operation was successful
*/
error_t (*lock)(struct Device* device);
/**
* @brief Tries to lock the SPI controller.
* @param[in] device the SPI controller device
* @param[in] timeout the maximum time to wait for the lock
* @retval ERROR_NONE when the operation was successful
* @retval ERROR_TIMEOUT when the operation timed out
*/
error_t (*try_lock)(struct Device* device, TickType_t timeout);
/**
* @brief Unlocks the SPI controller.
* @param[in] device the SPI controller device
* @retval ERROR_NONE when the operation was successful
*/
error_t (*unlock)(struct Device* device);
};
/**
* @brief Locks the SPI controller using the specified controller.
* @param[in] device the SPI controller device
* @retval ERROR_NONE when the operation was successful
*/
error_t spi_controller_lock(struct Device* device);
/**
* @brief Tries to lock the SPI controller using the specified controller.
* @param[in] device the SPI controller device
* @param[in] timeout the maximum ticks to wait for the lock
* @retval ERROR_NONE when the operation was successful
* @retval ERROR_TIMEOUT when the operation timed out
*/
error_t spi_controller_try_lock(struct Device* device, TickType_t timeout);
/**
* @brief Unlocks the SPI controller using the specified controller.
* @param[in] device the SPI controller device
* @retval ERROR_NONE when the operation was successful
*/
error_t spi_controller_unlock(struct Device* device);
extern const struct DeviceType SPI_CONTROLLER_TYPE;
#ifdef __cplusplus
}
#endif