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[mirror_edk2.git] / MdePkg / Include / Protocol / UgaIo.h

/** @file\r
  UGA IO protocol from the EFI 1.10 specification.\r
\r
  Abstraction of a very simple graphics device.\r
\r
  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef __UGA_IO_H__\r
#define __UGA_IO_H__\r
\r
#define EFI_UGA_IO_PROTOCOL_GUID \\r
  { 0x61a4d49e, 0x6f68, 0x4f1b, { 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0xb, 0x7, 0xa2 } }\r
\r
typedef struct _EFI_UGA_IO_PROTOCOL EFI_UGA_IO_PROTOCOL;\r
\r
typedef UINT32 UGA_STATUS;\r
\r
typedef enum {\r
  UgaDtParentBus = 1,\r
  UgaDtGraphicsController,\r
  UgaDtOutputController,\r
  UgaDtOutputPort,\r
  UgaDtOther\r
} UGA_DEVICE_TYPE, *PUGA_DEVICE_TYPE;\r
\r
typedef UINT32 UGA_DEVICE_ID, *PUGA_DEVICE_ID;\r
\r
typedef struct {\r
  UGA_DEVICE_TYPE    deviceType;\r
  UGA_DEVICE_ID      deviceId;\r
  UINT32             ui32DeviceContextSize;\r
  UINT32             ui32SharedContextSize;\r
} UGA_DEVICE_DATA, *PUGA_DEVICE_DATA;\r
\r
typedef struct _UGA_DEVICE {\r
  VOID                  *pvDeviceContext;\r
  VOID                  *pvSharedContext;\r
  VOID                  *pvRunTimeContext;\r
  struct _UGA_DEVICE    *pParentDevice;\r
  VOID                  *pvBusIoServices;\r
  VOID                  *pvStdIoServices;\r
  UGA_DEVICE_DATA       deviceData;\r
} UGA_DEVICE, *PUGA_DEVICE;\r
\r
typedef enum {\r
  UgaIoGetVersion = 1,\r
  UgaIoGetChildDevice,\r
  UgaIoStartDevice,\r
  UgaIoStopDevice,\r
  UgaIoFlushDevice,\r
  UgaIoResetDevice,\r
  UgaIoGetDeviceState,\r
  UgaIoSetDeviceState,\r
  UgaIoSetPowerState,\r
  UgaIoGetMemoryConfiguration,\r
  UgaIoSetVideoMode,\r
  UgaIoCopyRectangle,\r
  UgaIoGetEdidSegment,\r
  UgaIoDeviceChannelOpen,\r
  UgaIoDeviceChannelClose,\r
  UgaIoDeviceChannelRead,\r
  UgaIoDeviceChannelWrite,\r
  UgaIoGetPersistentDataSize,\r
  UgaIoGetPersistentData,\r
  UgaIoSetPersistentData,\r
  UgaIoGetDevicePropertySize,\r
  UgaIoGetDeviceProperty,\r
  UgaIoBtPrivateInterface\r
} UGA_IO_REQUEST_CODE, *PUGA_IO_REQUEST_CODE;\r
\r
typedef struct {\r
  IN UGA_IO_REQUEST_CODE    ioRequestCode;\r
  IN VOID                   *pvInBuffer;\r
  IN UINT64                 ui64InBufferSize;\r
  OUT VOID                  *pvOutBuffer;\r
  IN UINT64                 ui64OutBufferSize;\r
  OUT UINT64                ui64BytesReturned;\r
} UGA_IO_REQUEST, *PUGA_IO_REQUEST;\r
\r
/**\r
  Dynamically allocate storage for a child UGA_DEVICE.\r
\r
  @param[in]     This            The EFI_UGA_IO_PROTOCOL instance.\r
  @param[in]     ParentDevice    ParentDevice specifies a pointer to the parent device of Device.\r
  @param[in]     DeviceData      A pointer to UGA_DEVICE_DATA returned from a call to DispatchService()\r
                                 with a UGA_DEVICE of Parent and an IoRequest of type UgaIoGetChildDevice.\r
  @param[in]     RunTimeContext  Context to associate with Device.\r
  @param[out]    Device          The Device returns a dynamically allocated child UGA_DEVICE object\r
                                 for ParentDevice. The caller is responsible for deleting Device.\r
\r
\r
  @retval  EFI_SUCCESS           Device was returned.\r
  @retval  EFI_INVALID_PARAMETER One of the arguments was not valid.\r
  @retval  EFI_DEVICE_ERROR      The device had an error and could not complete the request.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_UGA_IO_PROTOCOL_CREATE_DEVICE)(\r
  IN  EFI_UGA_IO_PROTOCOL  *This,\r
  IN  UGA_DEVICE           *ParentDevice,\r
  IN  UGA_DEVICE_DATA      *DeviceData,\r
  IN  VOID                 *RunTimeContext,\r
  OUT UGA_DEVICE           **Device\r
  );\r
\r
/**\r
  Delete a dynamically allocated child UGA_DEVICE object that was allocated via CreateDevice().\r
\r
  @param[in]     This            The EFI_UGA_IO_PROTOCOL instance. Type EFI_UGA_IO_PROTOCOL is\r
                                 defined in Section 10.7.\r
  @param[in]     Device          The Device points to a UGA_DEVICE object that was dynamically\r
                                 allocated via a CreateDevice() call.\r
\r
\r
  @retval  EFI_SUCCESS           Device was returned.\r
  @retval  EFI_INVALID_PARAMETER The Device was not allocated via CreateDevice().\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_UGA_IO_PROTOCOL_DELETE_DEVICE)(\r
  IN EFI_UGA_IO_PROTOCOL  *This,\r
  IN UGA_DEVICE           *Device\r
  );\r
\r
/**\r
  This is the main UGA service dispatch routine for all UGA_IO_REQUEST s.\r
\r
  @param pDevice pDevice specifies a pointer to a device object associated with a\r
                 device enumerated by a pIoRequest->ioRequestCode of type\r
                 UgaIoGetChildDevice. The root device for the EFI_UGA_IO_PROTOCOL\r
                 is represented by pDevice being set to NULL.\r
\r
  @param pIoRequest\r
                 pIoRequest points to a caller allocated buffer that contains data\r
                 defined by pIoRequest->ioRequestCode. See Related Definitions for\r
                 a definition of UGA_IO_REQUEST_CODE s and their associated data\r
                 structures.\r
\r
  @return UGA_STATUS\r
\r
**/\r
typedef UGA_STATUS\r
(EFIAPI *PUGA_FW_SERVICE_DISPATCH)(\r
  IN PUGA_DEVICE pDevice,\r
  IN OUT PUGA_IO_REQUEST pIoRequest\r
  );\r
\r
///\r
/// Provides a basic abstraction to send I/O requests to the graphics device and any of its children.\r
///\r
struct _EFI_UGA_IO_PROTOCOL {\r
  EFI_UGA_IO_PROTOCOL_CREATE_DEVICE    CreateDevice;\r
  EFI_UGA_IO_PROTOCOL_DELETE_DEVICE    DeleteDevice;\r
  PUGA_FW_SERVICE_DISPATCH             DispatchService;\r
};\r
\r
extern EFI_GUID  gEfiUgaIoProtocolGuid;\r
\r
//\r
// Data structure that is stored in the EFI Configuration Table with the\r
// EFI_UGA_IO_PROTOCOL_GUID.  The option ROMs listed in this table may have\r
// EBC UGA drivers.\r
//\r
typedef struct {\r
  UINT32    Version;\r
  UINT32    HeaderSize;\r
  UINT32    SizeOfEntries;\r
  UINT32    NumberOfEntries;\r
} EFI_DRIVER_OS_HANDOFF_HEADER;\r
\r
typedef enum {\r
  EfiUgaDriverFromPciRom,\r
  EfiUgaDriverFromSystem,\r
  EfiDriverHandoffMax\r
} EFI_DRIVER_HANOFF_ENUM;\r
\r
typedef struct {\r
  EFI_DRIVER_HANOFF_ENUM      Type;\r
  EFI_DEVICE_PATH_PROTOCOL    *DevicePath;\r
  VOID                        *PciRomImage;\r
  UINT64                      PciRomSize;\r
} EFI_DRIVER_OS_HANDOFF;\r
\r
#endif\r