--- /dev/null
+/*
+ * VGA.C - a generic VGA miniport driver
+ *
+ */
+
+#include <ddk/ntddk.h>
+#include <ddk/ntddvid.h>
+
+#define UNIMPLEMENTED do {DbgPrint("%s:%d: Function not implemented", __FILE__, __LINE__); for(;;);} while (0)
+
+#define VERSION "0.0.0"
+
+// ---------------------------------------------------- Forward Declarations
+static VP_STATUS VGAFindAdapter(PVOID DeviceExtension,
+ PVOID Context,
+ PWSTR ArgumentString,
+ PVIDEO_PORT_CONFIG_INFO ConfigInfo,
+ PUCHAR Again);
+static BOOLEAN VGAInitialize(PVOID DeviceExtension);
+static BOOLEAN VGAStartIO(PVOID DeviceExtension,
+ PVIDEO_REQUEST_PACKET RequestPacket);
+/*
+static BOOLEAN VGAInterrupt(PVOID DeviceExtension);
+static BOOLEAN VGAResetHw(PVOID DeviceExtension,
+ ULONG Columns,
+ ULONG Rows);
+static VOID VGATimer(PVOID DeviceExtension);
+*/
+
+/* Mandatory IoControl routines */
+VOID VGAMapVideoMemory(IN PVIDEO_MEMORY RequestedAddress,
+ OUT PVIDEO_MEMORY_INFORMATION MapInformation,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAQueryAvailModes(OUT PVIDEO_MODE_INFORMATION ReturnedModes,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAQueryCurrentMode(OUT PVIDEO_MODE_INFORMATION CurrentMode,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAQueryNumAvailModes(OUT PVIDEO_NUM_MODES NumberOfModes,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAResetDevice(OUT PSTATUS_BLOCK StatusBlock);
+VOID VGASetColorRegisters(IN PVIDEO_CLUT ColorLookUpTable,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGASetCurrentMode(IN PVIDEO_MODE RequestedMode,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAShareVideoMemory(IN PVIDEO_SHARE_MEMORY RequestedMemory,
+ OUT PVIDEO_MEMORY_INFORMATION ReturnedMemory,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAUnmapVideoMemory(IN PVIDEO_MEMORY MemoryToUnmap,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAUnshareVideoMemory(IN PVIDEO_MEMORY MemoryToUnshare,
+ OUT PSTATUS_BLOCK StatusBlock);
+
+// ------------------------------------------------------- Public Interface
+
+// DriverEntry
+//
+// DESCRIPTION:
+// This function initializes the driver.
+//
+// RUN LEVEL:
+// PASSIVE_LEVEL
+//
+// ARGUMENTS:
+// IN PVOID Context1 Context parameter to pass to VidPortInitialize
+// IN PVOID Context2 Context parameter to pass to VidPortInitialize
+// RETURNS:
+// VP_STATUS
+
+STDCALL VP_STATUS
+DriverEntry(IN PVOID Context1,
+ IN PVOID Context2)
+{
+ VIDEO_HW_INITIALIZATION_DATA InitData;
+
+ DbgPrint("VGA miniport Driver %s\n", VERSION);
+
+ VideoPortZeroMemory(&InitData, sizeof InitData);
+
+ /* FIXME: Fill in InitData members */
+ InitData->StartingDeviceNumber = 0;
+
+ /* Export driver entry points... */
+ InitData->HwVidFindAdapter = VGAFindAdapter;
+ InitData->HwVidInitialize = VGAInitialize;
+ InitData->HwVidStartIO = VGAStartIO;
+ /* InitData->HwVidInterrupt = VGAInterrupt; */
+ /* InitData->HwVidResetHw = VGAResetHw; */
+ /* InitData->HwVidTimer = VGATimer; */
+
+ return VideoPortInitialize(Context1, Context2, InitData, NULL);
+}
+
+// VGAFindAdapter
+//
+// DESCRIPTION:
+// This routine is called by the videoport driver to find and allocate
+// the adapter for a given bus. The miniport driver needs to do the
+// following in this routine:
+// - Determine if the adapter is present
+// - Claim any necessary memory/IO resources for the adapter
+// - Map resources into system memory for the adapter
+// - fill in relevant information in the VIDEO_PORT_CONFIG_INFO buffer
+// - update registry settings for adapter specifics.
+// - Set 'Again' based on whether the function should be called again
+// another adapter on the same bus.
+//
+// RUN LEVEL:
+// PASSIVE_LEVEL
+//
+// ARGUMENTS:
+// PVOID DeviceExtension
+// PVOID Context
+// PWSTR ArgumentString
+// PVIDEO_PORT_CONFIG_INFO ConfigInfo
+// PUCHAR Again
+// RETURNS:
+// VP_STATUS
+
+static VP_STATUS
+VGAFindAdapter(PVOID DeviceExtension,
+ PVOID Context,
+ PWSTR ArgumentString,
+ PVIDEO_PORT_CONFIG_INFO ConfigInfo,
+ PUCHAR Again)
+{
+ /* FIXME: Determine if the adapter is present */
+ *Again = FALSE;
+ return ERROR_DEV_NOT_EXIST;
+
+ /* FIXME: Claim any necessary memory/IO resources for the adapter */
+ /* FIXME: Map resources into system memory for the adapter */
+ /* FIXME: Fill in relevant information in the VIDEO_PORT_CONFIG_INFO buffer */
+ /* FIXME: Update registry settings for adapter specifics. */
+// return NO_ERROR;
+}
+
+// VGAInitialize
+//
+// DESCRIPTION:
+// Perform initialization tasks, but leave the adapter in the same
+// user visible state
+//
+// RUN LEVEL:
+// PASSIVE_LEVEL
+//
+// ARGUMENTS:
+// PVOID DeviceExtension
+// RETURNS:
+// BOOLEAN Success or failure
+static BOOLEAN
+VGAInitialize(PVOID DeviceExtension)
+{
+ return FALSE;
+}
+
+// VGAStartIO
+//
+// DESCRIPTION:
+// This function gets called in responce to GDI EngDeviceIoControl
+// calls. Device requests are passed in VRPs.
+// Required VRPs:
+// IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES
+// IOCTL_VIDEO_QUERY_AVAIL_MODES
+// IOCTL_VIDEO_QUERY_CURRENT_MODE
+// IOCTL_VIDEO_SET_CURRENT_MODE
+// IOCTL_VIDEO_RESET_DEVICE
+// IOCTL_VIDEO_MAP_VIDEO_MEMORY
+// IOCTL_VIDEO_UNMAP_VIDEO_MEMORY
+// IOCTL_VIDEO_SHARE_VIDEO_MEMORY
+// IOCTL_VIDEO_UNSHARE_VIDEO_MEMORY
+// Optional VRPs:
+// IOCTL_VIDEO_GET_PUBLIC_ACCESS_RANGES
+// IOCTL_VIDEO_FREE_PUBLIC_ACCESS_RANGES
+// IOCTL_VIDEO_GET_POWER_MANAGEMENT
+// IOCTL_VIDEO_SET_POWER_MANAGEMENT
+// IOCTL_QUERY_COLOR_CAPABILITIES
+// IOCTL_VIDEO_SET_COLOR_REGISTERS (required if the device has a palette)
+// IOCTL_VIDEO_DISABLE_POINTER
+// IOCTL_VIDEO_ENABLE_POINTER
+// IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES
+// IOCTL_VIDEO_QUERY_POINTER_ATTR
+// IOCTL_VIDEO_SET_POINTER_ATTR
+// IOCTL_VIDEO_QUERY_POINTER_POSITION
+// IOCTL_VIDEO_SET_POINTER_POSITION
+// IOCTL_VIDEO_SAVE_HARDWARE_STATE
+// IOCTL_VIDEO_RESTORE_HARDWARE_STATE
+// IOCTL_VIDEO_DISABLE_CURSOR
+// IOCTL_VIDEO_ENABLE_CURSOR
+// IOCTL_VIDEO_QUERY_CURSOR_ATTR
+// IOCTL_VIDEO_SET_CURSOR_ATTR
+// IOCTL_VIDEO_QUERY_CURSOR_POSITION
+// IOCTL_VIDEO_SET_CURSOR_POSITION
+// IOCTL_VIDEO_GET_BANK_SELECT_CODE
+// IOCTL_VIDEO_SET_PALETTE_REGISTERS
+// IOCTL_VIDEO_LOAD_AND_SET_FONT
+//
+// RUN LEVEL:
+// PASSIVE_LEVEL
+//
+// ARGUMENTS:
+// PVOID DeviceExtension
+// PVIDEO_REQUEST_PACKET RequestPacket
+// RETURNS:
+// BOOLEAN This function must return TRUE, and complete the work or
+// set an error status in the VRP.
+
+static BOOLEAN
+VGAStartIO(PVOID DeviceExtension,
+ PVIDEO_REQUEST_PACKET RequestPacket)
+{
+ switch (RequestPacket->IoControlCode)
+ {
+ case IOCTL_VIDEO_MAP_VIDEO_MEMORY:
+ VGAMapVideoMemory((PVIDEO_MEMORY) RequestPacket->InputBuffer,
+ (PVIDEO_MEMORY_INFORMATION)
+ RequestPacket->OutputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_QUERY_AVAIL_MODES:
+ VGAQueryAvailModes((PVIDEO_MODE_INFORMATION) RequestPacket->OutputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_QUERY_CURRENT_MODE:
+ VGAQueryCurrentMode((PVIDEO_MODE_INFORMATION) RequestPacket->OutputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_QUERY_NUM_AVAIL_MODES:
+ VGAQueryNumAvailModes((PVIDEO_NUM_MODES) RequestPacket->OutputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_RESET_DEVICE:
+ VGAResetDevice(&RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_SET_COLOR_REGISTERS:
+ VGASetColorRegisters((PVIDEO_CLUT) RequestPacket->InputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_SET_CURRENT_MODE:
+ VGASetCurrentMode((PVIDEO_MODE) RequestPacket->InputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_SHARE_VIDEO_MEMORY:
+ VGAShareVideoMemory((PVIDEO_SHAR_MEMORY) RequestPacket->InputBuffer,
+ (PVIDEO_MEMORY_INFORMATION) RequestPacket->OutputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_UNMAP_VIDEO_MEMORY:
+ VGAUnmapVideoMemory((PVIDEO_MEMORY) RequestPacket->InputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_UNSHARE_VIDEO_MEMORY:
+ VGAUnshareVideoMemory((PVIDEO_MEMORY) RequestPacket->InputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+#if 0
+ case IOCTL_VIDEO_DISABLE_CURSOR:
+ case IOCTL_VIDEO_DISABLE_POINTER:
+ case IOCTL_VIDEO_ENABLE_CURSOR:
+ case IOCTL_VIDEO_ENABLE_POINTER:
+
+ case IOCTL_VIDEO_FREE_PUBLIC_ACCESS_RANGES:
+ VGAFreePublicAccessRanges((PVIDEO_PUBLIC_ACCESS_RANGES)
+ RequestPacket->InputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_GET_BANK_SELECT_CODE:
+ case IOCTL_VIDEO_GET_POWER_MANAGEMENT:
+ case IOCTL_VIDEO_LOAD_AND_SET_FONT:
+ case IOCTL_VIDEO_QUERY_CURSOR_POSITION:
+ case IOCTL_VIDEO_QUERY_COLOR_CAPABILITIES:
+ case IOCTL_VIDEO_QUERY_CURSOR_ATTR:
+ case IOCTL_VIDEO_QUERY_POINTER_ATTR:
+ case IOCTL_VIDEO_QUERY_POINTER_CAPABILITIES:
+ case IOCTL_VIDEO_QUERY_POINTER_POSITION:
+
+ case IOCTL_VIDEO_QUERY_PUBLIC_ACCESS_RANGES:
+ VGAQueryPublicAccessRanges((PVIDEO_PUBLIC_ACCESS_RANGES)
+ RequestPacket->OutputBuffer,
+ &RequestPacket->StatusBlock);
+ break;
+
+ case IOCTL_VIDEO_RESTORE_HARDWARE_STATE:
+ case IOCTL_VIDEO_SAVE_HARDWARE_STATE:
+ case IOCTL_VIDEO_SET_CURSOR_ATTR:
+ case IOCTL_VIDEO_SET_CURSOR_POSITION:
+ case IOCTL_VIDEO_SET_PALETTE_REGISTERS:
+ case IOCTL_VIDEO_SET_POINTER_ATTR:
+ case IOCTL_VIDEO_SET_POINTER_POSITION:
+ case IOCTL_VIDEO_SET_POWER_MANAGEMENT:
+
+#endif
+
+ default:
+ RequestPacket->StatusBlock.Status = ERROR_INVALID_FUNCTION;
+ break;
+ }
+
+ return TRUE;
+}
+
+#if 0
+// VGAInterrupt
+//
+// DESCRIPTION:
+// This function will be called upon receipt of a adapter generated
+// interrupt when enabled.
+//
+// RUN LEVEL:
+// IRQL
+//
+// ARGUMENTS:
+// PVOID DeviceExtension
+// RETURNS:
+// BOOLEAN TRUE if the interrupt was handled by the routine
+
+static BOOLEAN VGAInterrupt(PVOID DeviceExtension);
+
+// VGAResetHw
+//
+// DESCRIPTION:
+// This function is called to reset the hardware to a known state
+// if calling a BIOS int 10 reset will not achieve this result.
+//
+// RUN LEVEL:
+// PASSIVE_LEVEL
+//
+// ARGUMENTS:
+// PVOID DeviceExtension
+// ULONG Columns Columns and Rows specify the mode parameters
+// ULONG Rows to reset to.
+// RETURNS:
+// BOOLEAN TRUE if no further action is necessary, FALSE if the system
+// needs to still do a BOIS int 10 reset.
+
+static BOOLEAN VGAResetHw(PVOID DeviceExtension,
+ ULONG Columns,
+ ULONG Rows);
+
+// VGATimer
+//
+// DESCRIPTION:
+// This function will be called once a second when enabled
+//
+// RUN LEVEL:
+// PASSIVE_LEVEL
+//
+// ARGUMENTS:
+// PVOID DeviceExtension
+// RETURNS:
+// VOID
+
+static VOID VGATimer(PVOID DeviceExtension);
+
+#endif
+
+VOID VGAMapVideoMemory(IN PVIDEO_MEMORY RequestedAddress,
+ OUT PVIDEO_MEMORY_INFORMATION MapInformation,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAQueryAvailModes(OUT PVIDEO_MODE_INFORMATION ReturnedModes,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAQueryCurrentMode(OUT PVIDEO_MODE_INFORMATION CurrentMode,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAQueryNumAvailModes(OUT PVIDEO_NUM_MODES NumberOfModes,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAResetDevice(OUT PSTATUS_BLOCK StatusBlock);
+VOID VGASetColorRegisters(IN PVIDEO_CLUT ColorLookUpTable,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGASetCurrentMode(IN PVIDEO_MODE RequestedMode,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAShareVideoMemory(IN PVIDEO_SHARE_MEMORY RequestedMemory,
+ OUT PVIDEO_MEMORY_INFORMATION ReturnedMemory,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAUnmapVideoMemory(IN PVIDEO_MEMORY MemoryToUnmap,
+ OUT PSTATUS_BLOCK StatusBlock);
+VOID VGAUnshareVideoMemory(IN PVIDEO_MEMORY MemoryToUnshare,
+ OUT PSTATUS_BLOCK StatusBlock);
+
+
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