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      1 /** @file
      2   QEMU Video Controller Driver
      3 
      4   Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
      5   This program and the accompanying materials
      6   are licensed and made available under the terms and conditions of the BSD License
      7   which accompanies this distribution.  The full text of the license may be found at
      8   http://opensource.org/licenses/bsd-license.php
      9 
     10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     12 
     13 **/
     14 
     15 //
     16 // QEMU Video Controller Driver
     17 //
     18 
     19 #ifndef _QEMU_H_
     20 #define _QEMU_H_
     21 
     22 
     23 #include <Uefi.h>
     24 #include <Protocol/GraphicsOutput.h>
     25 #include <Protocol/PciIo.h>
     26 #include <Protocol/DriverSupportedEfiVersion.h>
     27 #include <Protocol/DevicePath.h>
     28 
     29 #include <Library/DebugLib.h>
     30 #include <Library/UefiDriverEntryPoint.h>
     31 #include <Library/UefiLib.h>
     32 #include <Library/PcdLib.h>
     33 #include <Library/MemoryAllocationLib.h>
     34 #include <Library/UefiBootServicesTableLib.h>
     35 #include <Library/BaseMemoryLib.h>
     36 #include <Library/DevicePathLib.h>
     37 #include <Library/TimerLib.h>
     38 #include <Library/FrameBufferBltLib.h>
     39 
     40 #include <IndustryStandard/Pci.h>
     41 #include <IndustryStandard/Acpi.h>
     42 
     43 //
     44 // QEMU Video PCI Configuration Header values
     45 //
     46 #define CIRRUS_LOGIC_VENDOR_ID                0x1013
     47 #define CIRRUS_LOGIC_5430_DEVICE_ID           0x00a8
     48 #define CIRRUS_LOGIC_5430_ALTERNATE_DEVICE_ID 0x00a0
     49 #define CIRRUS_LOGIC_5446_DEVICE_ID           0x00b8
     50 
     51 //
     52 // QEMU Vide Graphical Mode Data
     53 //
     54 typedef struct {
     55   UINT32  InternalModeIndex; // points into card-specific mode table
     56   UINT32  HorizontalResolution;
     57   UINT32  VerticalResolution;
     58   UINT32  ColorDepth;
     59 } QEMU_VIDEO_MODE_DATA;
     60 
     61 #define PIXEL_RED_SHIFT   0
     62 #define PIXEL_GREEN_SHIFT 3
     63 #define PIXEL_BLUE_SHIFT  6
     64 
     65 #define PIXEL_RED_MASK    (BIT7 | BIT6 | BIT5)
     66 #define PIXEL_GREEN_MASK  (BIT4 | BIT3 | BIT2)
     67 #define PIXEL_BLUE_MASK   (BIT1 | BIT0)
     68 
     69 #define PIXEL_TO_COLOR_BYTE(pixel, mask, shift) ((UINT8) ((pixel & mask) << shift))
     70 #define PIXEL_TO_RED_BYTE(pixel) PIXEL_TO_COLOR_BYTE(pixel, PIXEL_RED_MASK, PIXEL_RED_SHIFT)
     71 #define PIXEL_TO_GREEN_BYTE(pixel) PIXEL_TO_COLOR_BYTE(pixel, PIXEL_GREEN_MASK, PIXEL_GREEN_SHIFT)
     72 #define PIXEL_TO_BLUE_BYTE(pixel) PIXEL_TO_COLOR_BYTE(pixel, PIXEL_BLUE_MASK, PIXEL_BLUE_SHIFT)
     73 
     74 #define RGB_BYTES_TO_PIXEL(Red, Green, Blue) \
     75   (UINT8) ( (((Red) >> PIXEL_RED_SHIFT) & PIXEL_RED_MASK) | \
     76             (((Green) >> PIXEL_GREEN_SHIFT) & PIXEL_GREEN_MASK) | \
     77             (((Blue) >> PIXEL_BLUE_SHIFT) & PIXEL_BLUE_MASK) )
     78 
     79 #define PIXEL24_RED_MASK    0x00ff0000
     80 #define PIXEL24_GREEN_MASK  0x0000ff00
     81 #define PIXEL24_BLUE_MASK   0x000000ff
     82 
     83 #define GRAPHICS_OUTPUT_INVALIDE_MODE_NUMBER  0xffff
     84 
     85 //
     86 // QEMU Video Private Data Structure
     87 //
     88 #define QEMU_VIDEO_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('Q', 'V', 'I', 'D')
     89 
     90 typedef enum {
     91   QEMU_VIDEO_CIRRUS_5430 = 1,
     92   QEMU_VIDEO_CIRRUS_5446,
     93   QEMU_VIDEO_BOCHS,
     94   QEMU_VIDEO_BOCHS_MMIO,
     95 } QEMU_VIDEO_VARIANT;
     96 
     97 typedef struct {
     98   UINT16                                VendorId;
     99   UINT16                                DeviceId;
    100   QEMU_VIDEO_VARIANT                    Variant;
    101   CHAR16                                *Name;
    102 } QEMU_VIDEO_CARD;
    103 
    104 typedef struct {
    105   UINT64                                Signature;
    106   EFI_HANDLE                            Handle;
    107   EFI_PCI_IO_PROTOCOL                   *PciIo;
    108   UINT64                                OriginalPciAttributes;
    109   EFI_GRAPHICS_OUTPUT_PROTOCOL          GraphicsOutput;
    110   EFI_DEVICE_PATH_PROTOCOL              *GopDevicePath;
    111 
    112   //
    113   // The next two fields match the client-visible
    114   // EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE.MaxMode field.
    115   //
    116   UINTN                                 MaxMode;
    117   QEMU_VIDEO_MODE_DATA                  *ModeData;
    118 
    119   QEMU_VIDEO_VARIANT                    Variant;
    120   FRAME_BUFFER_CONFIGURE                *FrameBufferBltConfigure;
    121   UINTN                                 FrameBufferBltConfigureSize;
    122 } QEMU_VIDEO_PRIVATE_DATA;
    123 
    124 ///
    125 /// Card-specific Video Mode structures
    126 ///
    127 typedef struct {
    128   UINT32  Width;
    129   UINT32  Height;
    130   UINT32  ColorDepth;
    131   UINT8   *CrtcSettings;
    132   UINT16  *SeqSettings;
    133   UINT8   MiscSetting;
    134 } QEMU_VIDEO_CIRRUS_MODES;
    135 
    136 typedef struct {
    137   UINT32  Width;
    138   UINT32  Height;
    139   UINT32  ColorDepth;
    140 } QEMU_VIDEO_BOCHS_MODES;
    141 
    142 #define QEMU_VIDEO_PRIVATE_DATA_FROM_GRAPHICS_OUTPUT_THIS(a) \
    143   CR(a, QEMU_VIDEO_PRIVATE_DATA, GraphicsOutput, QEMU_VIDEO_PRIVATE_DATA_SIGNATURE)
    144 
    145 
    146 //
    147 // Global Variables
    148 //
    149 extern UINT8                                      AttributeController[];
    150 extern UINT8                                      GraphicsController[];
    151 extern UINT8                                      Crtc_640_480_256_60[];
    152 extern UINT16                                     Seq_640_480_256_60[];
    153 extern UINT8                                      Crtc_800_600_256_60[];
    154 extern UINT16                                     Seq_800_600_256_60[];
    155 extern UINT8                                      Crtc_1024_768_256_60[];
    156 extern UINT16                                     Seq_1024_768_256_60[];
    157 extern QEMU_VIDEO_CIRRUS_MODES                    QemuVideoCirrusModes[];
    158 extern QEMU_VIDEO_BOCHS_MODES                     QemuVideoBochsModes[];
    159 extern EFI_DRIVER_BINDING_PROTOCOL                gQemuVideoDriverBinding;
    160 extern EFI_COMPONENT_NAME_PROTOCOL                gQemuVideoComponentName;
    161 extern EFI_COMPONENT_NAME2_PROTOCOL               gQemuVideoComponentName2;
    162 extern EFI_DRIVER_SUPPORTED_EFI_VERSION_PROTOCOL  gQemuVideoDriverSupportedEfiVersion;
    163 
    164 //
    165 // Io Registers defined by VGA
    166 //
    167 #define CRTC_ADDRESS_REGISTER   0x3d4
    168 #define CRTC_DATA_REGISTER      0x3d5
    169 #define SEQ_ADDRESS_REGISTER    0x3c4
    170 #define SEQ_DATA_REGISTER       0x3c5
    171 #define GRAPH_ADDRESS_REGISTER  0x3ce
    172 #define GRAPH_DATA_REGISTER     0x3cf
    173 #define ATT_ADDRESS_REGISTER    0x3c0
    174 #define MISC_OUTPUT_REGISTER    0x3c2
    175 #define INPUT_STATUS_1_REGISTER 0x3da
    176 #define DAC_PIXEL_MASK_REGISTER 0x3c6
    177 #define PALETTE_INDEX_REGISTER  0x3c8
    178 #define PALETTE_DATA_REGISTER   0x3c9
    179 
    180 #define VBE_DISPI_IOPORT_INDEX           0x01CE
    181 #define VBE_DISPI_IOPORT_DATA            0x01D0
    182 
    183 #define VBE_DISPI_INDEX_ID               0x0
    184 #define VBE_DISPI_INDEX_XRES             0x1
    185 #define VBE_DISPI_INDEX_YRES             0x2
    186 #define VBE_DISPI_INDEX_BPP              0x3
    187 #define VBE_DISPI_INDEX_ENABLE           0x4
    188 #define VBE_DISPI_INDEX_BANK             0x5
    189 #define VBE_DISPI_INDEX_VIRT_WIDTH       0x6
    190 #define VBE_DISPI_INDEX_VIRT_HEIGHT      0x7
    191 #define VBE_DISPI_INDEX_X_OFFSET         0x8
    192 #define VBE_DISPI_INDEX_Y_OFFSET         0x9
    193 #define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
    194 
    195 #define VBE_DISPI_ID0                    0xB0C0
    196 #define VBE_DISPI_ID1                    0xB0C1
    197 #define VBE_DISPI_ID2                    0xB0C2
    198 #define VBE_DISPI_ID3                    0xB0C3
    199 #define VBE_DISPI_ID4                    0xB0C4
    200 #define VBE_DISPI_ID5                    0xB0C5
    201 
    202 #define VBE_DISPI_DISABLED               0x00
    203 #define VBE_DISPI_ENABLED                0x01
    204 #define VBE_DISPI_GETCAPS                0x02
    205 #define VBE_DISPI_8BIT_DAC               0x20
    206 #define VBE_DISPI_LFB_ENABLED            0x40
    207 #define VBE_DISPI_NOCLEARMEM             0x80
    208 
    209 //
    210 // Graphics Output Hardware abstraction internal worker functions
    211 //
    212 EFI_STATUS
    213 QemuVideoGraphicsOutputConstructor (
    214   QEMU_VIDEO_PRIVATE_DATA  *Private
    215   );
    216 
    217 EFI_STATUS
    218 QemuVideoGraphicsOutputDestructor (
    219   QEMU_VIDEO_PRIVATE_DATA  *Private
    220   );
    221 
    222 
    223 //
    224 // EFI_DRIVER_BINDING_PROTOCOL Protocol Interface
    225 //
    226 /**
    227   TODO: Add function description
    228 
    229   @param  This TODO: add argument description
    230   @param  Controller TODO: add argument description
    231   @param  RemainingDevicePath TODO: add argument description
    232 
    233   TODO: add return values
    234 
    235 **/
    236 EFI_STATUS
    237 EFIAPI
    238 QemuVideoControllerDriverSupported (
    239   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
    240   IN EFI_HANDLE                   Controller,
    241   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
    242   );
    243 
    244 /**
    245   TODO: Add function description
    246 
    247   @param  This TODO: add argument description
    248   @param  Controller TODO: add argument description
    249   @param  RemainingDevicePath TODO: add argument description
    250 
    251   TODO: add return values
    252 
    253 **/
    254 EFI_STATUS
    255 EFIAPI
    256 QemuVideoControllerDriverStart (
    257   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
    258   IN EFI_HANDLE                   Controller,
    259   IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath
    260   );
    261 
    262 /**
    263   TODO: Add function description
    264 
    265   @param  This TODO: add argument description
    266   @param  Controller TODO: add argument description
    267   @param  NumberOfChildren TODO: add argument description
    268   @param  ChildHandleBuffer TODO: add argument description
    269 
    270   TODO: add return values
    271 
    272 **/
    273 EFI_STATUS
    274 EFIAPI
    275 QemuVideoControllerDriverStop (
    276   IN EFI_DRIVER_BINDING_PROTOCOL  *This,
    277   IN EFI_HANDLE                   Controller,
    278   IN UINTN                        NumberOfChildren,
    279   IN EFI_HANDLE                   *ChildHandleBuffer
    280   );
    281 
    282 //
    283 // EFI Component Name Functions
    284 //
    285 /**
    286   Retrieves a Unicode string that is the user readable name of the driver.
    287 
    288   This function retrieves the user readable name of a driver in the form of a
    289   Unicode string. If the driver specified by This has a user readable name in
    290   the language specified by Language, then a pointer to the driver name is
    291   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
    292   by This does not support the language specified by Language,
    293   then EFI_UNSUPPORTED is returned.
    294 
    295   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
    296                                 EFI_COMPONENT_NAME_PROTOCOL instance.
    297 
    298   @param  Language[in]          A pointer to a Null-terminated ASCII string
    299                                 array indicating the language. This is the
    300                                 language of the driver name that the caller is
    301                                 requesting, and it must match one of the
    302                                 languages specified in SupportedLanguages. The
    303                                 number of languages supported by a driver is up
    304                                 to the driver writer. Language is specified
    305                                 in RFC 4646 or ISO 639-2 language code format.
    306 
    307   @param  DriverName[out]       A pointer to the Unicode string to return.
    308                                 This Unicode string is the name of the
    309                                 driver specified by This in the language
    310                                 specified by Language.
    311 
    312   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
    313                                 This and the language specified by Language was
    314                                 returned in DriverName.
    315 
    316   @retval EFI_INVALID_PARAMETER Language is NULL.
    317 
    318   @retval EFI_INVALID_PARAMETER DriverName is NULL.
    319 
    320   @retval EFI_UNSUPPORTED       The driver specified by This does not support
    321                                 the language specified by Language.
    322 
    323 **/
    324 EFI_STATUS
    325 EFIAPI
    326 QemuVideoComponentNameGetDriverName (
    327   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
    328   IN  CHAR8                        *Language,
    329   OUT CHAR16                       **DriverName
    330   );
    331 
    332 
    333 /**
    334   Retrieves a Unicode string that is the user readable name of the controller
    335   that is being managed by a driver.
    336 
    337   This function retrieves the user readable name of the controller specified by
    338   ControllerHandle and ChildHandle in the form of a Unicode string. If the
    339   driver specified by This has a user readable name in the language specified by
    340   Language, then a pointer to the controller name is returned in ControllerName,
    341   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
    342   managing the controller specified by ControllerHandle and ChildHandle,
    343   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
    344   support the language specified by Language, then EFI_UNSUPPORTED is returned.
    345 
    346   @param  This[in]              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
    347                                 EFI_COMPONENT_NAME_PROTOCOL instance.
    348 
    349   @param  ControllerHandle[in]  The handle of a controller that the driver
    350                                 specified by This is managing.  This handle
    351                                 specifies the controller whose name is to be
    352                                 returned.
    353 
    354   @param  ChildHandle[in]       The handle of the child controller to retrieve
    355                                 the name of.  This is an optional parameter that
    356                                 may be NULL.  It will be NULL for device
    357                                 drivers.  It will also be NULL for a bus drivers
    358                                 that wish to retrieve the name of the bus
    359                                 controller.  It will not be NULL for a bus
    360                                 driver that wishes to retrieve the name of a
    361                                 child controller.
    362 
    363   @param  Language[in]          A pointer to a Null-terminated ASCII string
    364                                 array indicating the language.  This is the
    365                                 language of the driver name that the caller is
    366                                 requesting, and it must match one of the
    367                                 languages specified in SupportedLanguages. The
    368                                 number of languages supported by a driver is up
    369                                 to the driver writer. Language is specified in
    370                                 RFC 4646 or ISO 639-2 language code format.
    371 
    372   @param  ControllerName[out]   A pointer to the Unicode string to return.
    373                                 This Unicode string is the name of the
    374                                 controller specified by ControllerHandle and
    375                                 ChildHandle in the language specified by
    376                                 Language from the point of view of the driver
    377                                 specified by This.
    378 
    379   @retval EFI_SUCCESS           The Unicode string for the user readable name in
    380                                 the language specified by Language for the
    381                                 driver specified by This was returned in
    382                                 DriverName.
    383 
    384   @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
    385 
    386   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
    387                                 EFI_HANDLE.
    388 
    389   @retval EFI_INVALID_PARAMETER Language is NULL.
    390 
    391   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
    392 
    393   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
    394                                 managing the controller specified by
    395                                 ControllerHandle and ChildHandle.
    396 
    397   @retval EFI_UNSUPPORTED       The driver specified by This does not support
    398                                 the language specified by Language.
    399 
    400 **/
    401 EFI_STATUS
    402 EFIAPI
    403 QemuVideoComponentNameGetControllerName (
    404   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
    405   IN  EFI_HANDLE                                      ControllerHandle,
    406   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
    407   IN  CHAR8                                           *Language,
    408   OUT CHAR16                                          **ControllerName
    409   );
    410 
    411 
    412 //
    413 // Local Function Prototypes
    414 //
    415 VOID
    416 InitializeCirrusGraphicsMode (
    417   QEMU_VIDEO_PRIVATE_DATA  *Private,
    418   QEMU_VIDEO_CIRRUS_MODES  *ModeData
    419   );
    420 
    421 VOID
    422 InitializeBochsGraphicsMode (
    423   QEMU_VIDEO_PRIVATE_DATA  *Private,
    424   QEMU_VIDEO_BOCHS_MODES   *ModeData
    425   );
    426 
    427 VOID
    428 SetPaletteColor (
    429   QEMU_VIDEO_PRIVATE_DATA  *Private,
    430   UINTN                           Index,
    431   UINT8                           Red,
    432   UINT8                           Green,
    433   UINT8                           Blue
    434   );
    435 
    436 VOID
    437 SetDefaultPalette (
    438   QEMU_VIDEO_PRIVATE_DATA  *Private
    439   );
    440 
    441 VOID
    442 DrawLogo (
    443   QEMU_VIDEO_PRIVATE_DATA  *Private,
    444   UINTN                           ScreenWidth,
    445   UINTN                           ScreenHeight
    446   );
    447 
    448 VOID
    449 outb (
    450   QEMU_VIDEO_PRIVATE_DATA  *Private,
    451   UINTN                           Address,
    452   UINT8                           Data
    453   );
    454 
    455 VOID
    456 outw (
    457   QEMU_VIDEO_PRIVATE_DATA  *Private,
    458   UINTN                           Address,
    459   UINT16                          Data
    460   );
    461 
    462 UINT8
    463 inb (
    464   QEMU_VIDEO_PRIVATE_DATA  *Private,
    465   UINTN                           Address
    466   );
    467 
    468 UINT16
    469 inw (
    470   QEMU_VIDEO_PRIVATE_DATA  *Private,
    471   UINTN                           Address
    472   );
    473 
    474 VOID
    475 BochsWrite (
    476   QEMU_VIDEO_PRIVATE_DATA  *Private,
    477   UINT16                   Reg,
    478   UINT16                   Data
    479   );
    480 
    481 UINT16
    482 BochsRead (
    483   QEMU_VIDEO_PRIVATE_DATA  *Private,
    484   UINT16                   Reg
    485   );
    486 
    487 VOID
    488 VgaOutb (
    489   QEMU_VIDEO_PRIVATE_DATA  *Private,
    490   UINTN                    Reg,
    491   UINT8                    Data
    492   );
    493 
    494 EFI_STATUS
    495 QemuVideoCirrusModeSetup (
    496   QEMU_VIDEO_PRIVATE_DATA  *Private
    497   );
    498 
    499 EFI_STATUS
    500 QemuVideoBochsModeSetup (
    501   QEMU_VIDEO_PRIVATE_DATA  *Private,
    502   BOOLEAN                  IsQxl
    503   );
    504 
    505 VOID
    506 InstallVbeShim (
    507   IN CONST CHAR16         *CardName,
    508   IN EFI_PHYSICAL_ADDRESS FrameBufferBase
    509   );
    510 #endif
    511