I2cMaster.h

Go to the documentation of this file.

 
#ifndef __I2C_MASTER_H__
#define __I2C_MASTER_H__
 
#include <Pi/PiI2c.h>
 
#define EFI_I2C_MASTER_PROTOCOL_GUID  { 0xcd72881f, 0x45b5, 0x4feb, { 0x98, 0xc8, 0x31, 0x3d, 0xa8, 0x11, 0x74, 0x62 }}
 
typedef struct _EFI_I2C_MASTER_PROTOCOL EFI_I2C_MASTER_PROTOCOL;
 
typedef
EFI_STATUS
(EFIAPI *EFI_I2C_MASTER_PROTOCOL_SET_BUS_FREQUENCY)(
  IN CONST EFI_I2C_MASTER_PROTOCOL   *This,
  IN OUT UINTN                       *BusClockHertz
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_I2C_MASTER_PROTOCOL_RESET)(
  IN CONST EFI_I2C_MASTER_PROTOCOL *This
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_I2C_MASTER_PROTOCOL_START_REQUEST)(
  IN CONST EFI_I2C_MASTER_PROTOCOL *This,
  IN UINTN                         SlaveAddress,
  IN EFI_I2C_REQUEST_PACKET        *RequestPacket,
  IN EFI_EVENT                     Event      OPTIONAL,
  OUT EFI_STATUS                   *I2cStatus OPTIONAL
  );
 
struct _EFI_I2C_MASTER_PROTOCOL {
  EFI_I2C_MASTER_PROTOCOL_SET_BUS_FREQUENCY    SetBusFrequency;
 
  EFI_I2C_MASTER_PROTOCOL_RESET                Reset;
 
  EFI_I2C_MASTER_PROTOCOL_START_REQUEST        StartRequest;
 
  CONST EFI_I2C_CONTROLLER_CAPABILITIES        *I2cControllerCapabilities;
};
 
extern EFI_GUID  gEfiI2cMasterProtocolGuid;
 
#endif //  __I2C_MASTER_H__