I2C.h

#ifndef PFLIB_I2C_H_
#define PFLIB_I2C_H_
 
#include "pflib/WishboneTarget.h"
#include <vector>
 
namespace pflib {
 
class I2C : public WishboneTarget {
 public:
  I2C(WishboneInterface* wb, int target = tgt_I2C) 
    : WishboneTarget(wb,target) {}
 
  void set_active_bus(int ibus);
 
  int get_active_bus();
 
  int get_bus_count();
 
  void set_bus_speed(int speed=100);
 
  int get_bus_speed();
  
  void write_byte(uint8_t i2c_dev_addr, uint8_t data);
 
  uint8_t read_byte(uint8_t i2c_dev_addr);
 
  std::vector<uint8_t> general_write_read(uint8_t i2c_dev_addr, const std::vector<uint8_t>& wdata, int nread=0);
 
 
  void backplane_hack(bool enable);
 
 private:
  int usec_per_byte_;
  
  bool i2c_wait(bool nack_ok=false);
  
};
 
}
 
#endif // PFLIB_I2C_H_