sd_i2c.h

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#ifndef __SD_I2C_H
#define __SD_I2C_H
#ifdef __cplusplus
extern "C" {
#endif

#define SD_I2C_SWITCH_ADDR      0xE0    
#define SD_I2C_CHANNEL_NONE     0x00    
#define SD_I2C_CHANNEL_0        0x01    
#define SD_I2C_CHANNEL_1        0x02    
#define SD_I2C_CHANNEL_2        0x04    
#define SD_I2C_CHANNEL_3        0x08    
#define SD_I2C_CHANNEL_4        0x10    
#define SD_I2C_CHANNEL_5        0x20    
#define SD_I2C_CHANNEL_6        0x40    
#define SD_I2C_CHANNEL_7        0x80    
#define SD_I2C_JA1  SD_I2C_CHANNEL_0    
#define SD_I2C_JA2  SD_I2C_CHANNEL_1    
#define SD_I2C_JB1  SD_I2C_CHANNEL_2    
#define SD_I2C_JB2  SD_I2C_CHANNEL_3    
#define SD_I2C_JC1  SD_I2C_CHANNEL_4    
#define SD_I2C_J3   SD_I2C_CHANNEL_5    
#define SD_I2C_J2   SD_I2C_CHANNEL_7    
extern struct sd_i2c_dev i2c1_dev;
extern struct sd_i2c_dev i2c2_dev;
enum sd_i2c_err {
    SD_I2C_SUCCESS = 0x4A0D,        
    SD_I2C_NULL_ERROR,          
    SD_I2C_LOCKED,              
    SD_I2C_TIMEOUT,             
    SD_I2C_ERROR                
};

enum sd_i2c_state {
    SD_I2C_INITIALIZED = 0x0E60,        
    SD_I2C_READY,               
    SD_I2C_BUSY,                
};

  
struct sd_i2c_dev {
    I2C_HandleTypeDef       *i2c;       
    struct sd_cbuf     *rx_buff;    
    enum sd_i2c_state       state;      
    uint8_t         error;      
};
void sd_i2c1_init           (void);
void sd_i2c2_init           (void);
enum sd_i2c_err sd_i2C_set_chan     (struct sd_i2c_dev *dev, 
                        uint8_t chan);
#ifdef __cplusplus
}
#endif
#else
#error "Multiple inclusion of sd_i2c.h"
#endif /* __SD_I2C_H */

/*
 * END OF FILE [sd_i2c.h]
 */