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

57 lines
2.5 KiB
C++

// SPDX-License-Identifier: Apache-2.0
#include <tactility/drivers/i2c_controller.h>
#include <tactility/error.h>
#define I2C_DRIVER_API(driver) ((struct I2cControllerApi*)driver->api)
extern "C" {
error_t i2c_controller_read(Device* device, uint8_t address, uint8_t* data, size_t dataSize, TickType_t timeout) {
const auto* driver = device_get_driver(device);
return I2C_DRIVER_API(driver)->read(device, address, data, dataSize, timeout);
}
error_t i2c_controller_write(Device* device, uint8_t address, const uint8_t* data, uint16_t dataSize, TickType_t timeout) {
const auto* driver = device_get_driver(device);
return I2C_DRIVER_API(driver)->write(device, address, data, dataSize, timeout);
}
error_t i2c_controller_write_read(Device* device, uint8_t address, const uint8_t* writeData, size_t writeDataSize, uint8_t* readData, size_t readDataSize, TickType_t timeout) {
const auto* driver = device_get_driver(device);
return I2C_DRIVER_API(driver)->write_read(device, address, writeData, writeDataSize, readData, readDataSize, timeout);
}
error_t i2c_controller_read_register(Device* device, uint8_t address, uint8_t reg, uint8_t* data, size_t dataSize, TickType_t timeout) {
const auto* driver = device_get_driver(device);
return I2C_DRIVER_API(driver)->read_register(device, address, reg, data, dataSize, timeout);
}
error_t i2c_controller_write_register(Device* device, uint8_t address, uint8_t reg, const uint8_t* data, uint16_t dataSize, TickType_t timeout) {
const auto* driver = device_get_driver(device);
return I2C_DRIVER_API(driver)->write_register(device, address, reg, data, dataSize, timeout);
}
error_t i2c_controller_write_register_array(Device* device, uint8_t address, const uint8_t* data, uint16_t dataSize, TickType_t timeout) {
const auto* driver = device_get_driver(device);
if (dataSize % 2 != 0) {
return ERROR_INVALID_ARGUMENT;
}
for (int i = 0; i < dataSize; i += 2) {
error_t error = I2C_DRIVER_API(driver)->write_register(device, address, data[i], &data[i + 1], 1, timeout);
if (error != ERROR_NONE) return error;
}
return ERROR_NONE;
}
error_t i2c_controller_has_device_at_address(Device* device, uint8_t address, TickType_t timeout) {
const auto* driver = device_get_driver(device);
uint8_t message[2] = { 0, 0 };
return I2C_DRIVER_API(driver)->write(device, address, message, 2, timeout);
}
const struct DeviceType I2C_CONTROLLER_TYPE {
.name = "i2c-controller"
};
}