gnu-efi/inc/protocol/vgaclass.h

   1 #ifndef _VGA_CLASS_H
   2 #define _VGA_CLASS_H
   3
   4 /*++
   5
   6 Copyright (c) 1999  Intel Corporation
   7
   8 Module Name:
   9
  10     VgaClass.h
  11
  12 Abstract:
  13
  14     Vga Mini port binding to Vga Class protocol
  15
  16
  17
  18 Revision History
  19
  20 --*/
  21
  22 //
  23 // VGA Device Structure
  24 //
  25
  26 // {0E3D6310-6FE4-11d3-BB81-0080C73C8881}
  27 #define VGA_CLASS_DRIVER_PROTOCOL \
  28     { 0xe3d6310, 0x6fe4, 0x11d3, {0xbb, 0x81, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81} }
  29
  30 typedef
  31 EFI_STATUS
  32 (* INIT_VGA_CARD) (
  33     IN  UINTN   VgaMode,
  34     IN  VOID    *Context
  35     );
  36
  37 typedef struct {
  38     UINTN   MaxColumns;
  39     UINTN   MaxRows;
  40 } MAX_CONSOLE_GEOMETRY;
  41
  42 #define VGA_CON_OUT_DEV_SIGNATURE   EFI_SIGNATURE_32('c','v','g','a')
  43 typedef struct {
  44     UINTN                           Signature;
  45
  46     EFI_HANDLE                      Handle;
  47     SIMPLE_TEXT_OUTPUT_INTERFACE    ConOut;
  48     SIMPLE_TEXT_OUTPUT_MODE         ConOutMode;
  49     EFI_DEVICE_PATH                 *DevicePath;
  50
  51     UINT8                           *Buffer;
  52     EFI_DEVICE_IO_INTERFACE         *DeviceIo;
  53
  54     //
  55     // Video Card Context
  56     //
  57     INIT_VGA_CARD                   InitVgaCard;
  58     VOID                            *VgaCardContext;
  59     MAX_CONSOLE_GEOMETRY            *Geometry;
  60     //
  61     // Video buffer normally 0xb8000
  62     //
  63     UINT64                          VideoBuffer;
  64
  65     //
  66     // Clear Screen & Default Attribute
  67     //
  68     UINT32                          Attribute;
  69
  70     //
  71     // -1 means search for active VGA device
  72     //
  73     EFI_PCI_ADDRESS_UNION           Pci;
  74 } VGA_CON_OUT_DEV;
  75
  76 #define VGA_CON_OUT_DEV_FROM_THIS(a) CR(a, VGA_CON_OUT_DEV, ConOut, VGA_CON_OUT_DEV_SIGNATURE)
  77
  78 //
  79 // Vga Class Driver Protocol.
  80 // GUID defined in EFI Lib
  81 //
  82
  83 typedef
  84 EFI_STATUS
  85 (EFIAPI *INSTALL_VGA_DRIVER) (
  86     IN  VGA_CON_OUT_DEV    *ConOutDev
  87     );
  88
  89 typedef struct {
  90     UINT32               Version;
  91     INSTALL_VGA_DRIVER   InstallGenericVgaDriver;
  92 } INSTALL_VGA_DRIVER_INTERFACE;
  93
  94 #endif
  95