#ifndef __TCA6416_H
#define __TCA6416_H

#include "stm32f1xx_hal.h"

/* TCA6416 I2C地址 */
#define TCA6416_ADDR            0x20    // 基础地址 (A0=A1=A2=GND)

/* 寄存器地址定义 */
#define TCA6416_INPUT_PORT0     0x00    // 输入端口0
#define TCA6416_INPUT_PORT1     0x01    // 输入端口1
#define TCA6416_OUTPUT_PORT0    0x02    // 输出端口0
#define TCA6416_OUTPUT_PORT1    0x03    // 输出端口1
#define TCA6416_CONFIG_PORT0    0x06    // 配置端口0
#define TCA6416_CONFIG_PORT1    0x07    // 配置端口1
#define TCA6416_POL_INV_PORT0   0x04    // 极性反转端口0
#define TCA6416_POL_INV_PORT1   0x05    // 极性反转端口1

/* 函数声明 */
HAL_StatusTypeDef TCA6416_Init(I2C_HandleTypeDef *hi2c);
HAL_StatusTypeDef TCA6416_WritePort(I2C_HandleTypeDef *hi2c, uint8_t port, uint8_t data);
HAL_StatusTypeDef TCA6416_ReadPort(I2C_HandleTypeDef *hi2c, uint8_t port, uint8_t *data);
HAL_StatusTypeDef TCA6416_SetPortDirection(I2C_HandleTypeDef *hi2c, uint8_t port, uint8_t direction);
HAL_StatusTypeDef TCA6416_SetPortPolarity(I2C_HandleTypeDef *hi2c, uint8_t port, uint8_t polarity);
HAL_StatusTypeDef TCA6416_WritePin(I2C_HandleTypeDef *hi2c, uint8_t port, uint8_t pin, uint8_t state);
HAL_StatusTypeDef TCA6416_ReadPin(I2C_HandleTypeDef *hi2c, uint8_t port, uint8_t pin, uint8_t *state);

#endif /* __TCA6416_H */