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#ifndef BITBANG_I2C_H
#define BITBANG_I2C_H
#include "hw/i2c/i2c.h"
typedef struct bitbang_i2c_interface bitbang_i2c_interface;
#define BITBANG_I2C_SDA 0
#define BITBANG_I2C_SCL 1
typedef enum bitbang_i2c_state {
STOPPED = 0,
SENDING_BIT7,
SENDING_BIT6,
SENDING_BIT5,
SENDING_BIT4,
SENDING_BIT3,
SENDING_BIT2,
SENDING_BIT1,
SENDING_BIT0,
WAITING_FOR_ACK,
RECEIVING_BIT7,
RECEIVING_BIT6,
RECEIVING_BIT5,
RECEIVING_BIT4,
RECEIVING_BIT3,
RECEIVING_BIT2,
RECEIVING_BIT1,
RECEIVING_BIT0,
SENDING_ACK,
SENT_NACK
} bitbang_i2c_state;
struct bitbang_i2c_interface {
I2CBus *bus;
bitbang_i2c_state state;
int last_data;
int last_clock;
int device_out;
uint8_t buffer;
int current_addr;
};
/**
* bitbang_i2c_init: in-place initialize the bitbang_i2c_interface struct
*/
void bitbang_i2c_init(bitbang_i2c_interface *s, I2CBus *bus);
int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line, int level);
#endif
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