#ifndef __PCA9685_DRIVER_H__
#define __PCA9685_DRIVER_H__

#include "common.h"

#define PCA9685_I2C_ADDR 0x40 // PCA9685 I2C地址

#define PCA9685_USE_SOFT_IIC 1 // 使用软件IIC

#if PCA9685_USE_SOFT_IIC == 1

#define PCA9685_SOFT_IIC_SCL_PIN   P15
#define PCA9685_SOFT_IIC_SDA_PIN   P14

#define PCA9685_SDA_LEVEL(x)   (PCA9685_SOFT_IIC_SDA_PIN = x)
#define PCA9685_SCL_LEVEL(x)   (PCA9685_SOFT_IIC_SCL_PIN = x)
#define PCA9685_SDA_READ()     (PCA9685_SOFT_IIC_SDA_PIN)

#else

#define PCA9685_I2C_SCL_PIN   IIC1_SCL_P15
#define PCA9685_I2C_SDA_PIN   IIC1_SDA_P14

#endif

#define PCA9685_MODE1 0x00
#define PCA9685_PRESCALE 0xFE
#define PCA9685_LED0_ON_L 0x06
#define PCA9685_LED0_ON_H 0x07
#define PCA9685_LED0_OFF_L 0x08
#define PCA9685_LED0_OFF_H 0x09 
#define PCA9685_ALL_LED_ON_L 0xFA
#define PCA9685_ALL_LED_ON_H 0xFB
#define PCA9685_ALL_LED_OFF_L 0xFC
#define PCA9685_ALL_LED_OFF_H 0xFD

#define PCA9685_DEF_FREQ 50 // 默认频率为50Hz

void pca9685_init();
void pca9685_deinit();
void pca9685_set_frequency(uint16 frequency);
void pca9685_set_pwm(uint8 channel, uint16 on, uint16 off);

#endif