EmbeddedExternalDevice.h

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#ifndef __EMBEDDED_EXTERNAL_DEVICE_H__
#define __EMBEDDED_EXTERNAL_DEVICE_H__
 
//
// Protocol GUID
//
#define EMBEDDED_EXTERNAL_DEVICE_PROTOCOL_GUID  { 0x735F8C64, 0xD696, 0x44D0, { 0xBD, 0xF2, 0x44, 0x7F, 0xD0, 0x5A, 0x54, 0x06 }}
 
//
// Protocol interface structure
//
typedef struct _EMBEDDED_EXTERNAL_DEVICE EMBEDDED_EXTERNAL_DEVICE;
 
//
// Function Prototypes
//
typedef
EFI_STATUS
(EFIAPI *EMBEDDED_EXTERNAL_DEVICE_READ)(
  IN  EMBEDDED_EXTERNAL_DEVICE  *This,
  IN  UINTN                       Register,
  IN  UINTN                       Length,
  OUT VOID                        *Buffer
  )
 
/*++
 
Routine Description:
 
  Read a set of contiguous external device registers.
 
Arguments:
 
  This        - pointer to protocol
  Offset      - starting register number
  Length      - number of bytes to read
  Buffer      - destination buffer
 
Returns:
 
  EFI_SUCCESS - registers read successfully
 
--*/
;
 
typedef
EFI_STATUS
(EFIAPI *EMBEDDED_EXTERNAL_DEVICE_WRITE)(
  IN EMBEDDED_EXTERNAL_DEVICE *This,
  IN UINTN                      Register,
  IN UINTN                      Length,
  IN VOID                       *Buffer
  )
 
/*++
 
Routine Description:
 
  Write to a set of contiguous external device registers.
 
Arguments:
 
  This        - pointer to protocol
  Offset      - starting register number
  Length      - number of bytes to write
  Buffer      - source buffer
 
Returns:
 
  EFI_SUCCESS - registers written successfully
 
--*/
;
 
struct _EMBEDDED_EXTERNAL_DEVICE {
  EMBEDDED_EXTERNAL_DEVICE_READ     Read;
  EMBEDDED_EXTERNAL_DEVICE_WRITE    Write;
};
 
extern EFI_GUID  gEmbeddedExternalDeviceProtocolGuid;
 
#endif // __EMBEDDED_EXTERNAL_DEVICE_H__