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![Victor Perevertkin](/assets/img/avatar_default.png)
- Change INIT_FUNCTION and INIT_SECTION to CODE_SEG("INIT") and DATA_SEG("INIT") respectively - Remove INIT_FUNCTION from function prototypes - Remove alloc_text pragma calls as they are not needed anymore
376 lines
13 KiB
C
376 lines
13 KiB
C
/*
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* PROJECT: ReactOS framebuffer driver for NEC PC-98 series
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* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
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* PURPOSE: Hardware support code
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* COPYRIGHT: Copyright 2020 Dmitry Borisov (di.sean@protonmail.com)
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*/
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/* INCLUDES *******************************************************************/
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#include "pc98vid.h"
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/* GLOBALS ********************************************************************/
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#define PEGC_MAX_COLORS 256
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/* FUNCTIONS ******************************************************************/
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static BOOLEAN
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GraphGetStatus(
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_In_ UCHAR Status)
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{
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UCHAR Result;
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VideoPortWritePortUchar((PUCHAR)GRAPH_IO_o_STATUS_SELECT, Status);
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Result = VideoPortReadPortUchar((PUCHAR)GRAPH_IO_i_STATUS);
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return (Result & GRAPH_STATUS_SET) && (Result != 0xFF);
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}
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static BOOLEAN
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TestMmio(
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_In_ PHW_DEVICE_EXTENSION DeviceExtension)
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{
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USHORT OldValue, NewValue;
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OldValue = VideoPortReadRegisterUshort((PUSHORT)(DeviceExtension->PegcControlVa +
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PEGC_MMIO_MODE));
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/* Bits [15:1] are not writable */
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VideoPortWriteRegisterUshort((PUSHORT)(DeviceExtension->PegcControlVa +
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PEGC_MMIO_MODE), 0x80);
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NewValue = VideoPortReadRegisterUshort((PUSHORT)(DeviceExtension->PegcControlVa +
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PEGC_MMIO_MODE));
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VideoPortWriteRegisterUshort((PUSHORT)(DeviceExtension->PegcControlVa +
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PEGC_MMIO_MODE), OldValue);
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return !(NewValue & 0x80);
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}
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static VOID
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TextSync(VOID)
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{
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while (VideoPortReadPortUchar((PUCHAR)GDC1_IO_i_STATUS) & GDC_STATUS_VSYNC)
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NOTHING;
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while (!(VideoPortReadPortUchar((PUCHAR)GDC1_IO_i_STATUS) & GDC_STATUS_VSYNC))
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NOTHING;
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}
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BOOLEAN
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NTAPI
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HasPegcController(
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_In_ PHW_DEVICE_EXTENSION DeviceExtension)
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{
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BOOLEAN Success;
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if (GraphGetStatus(GRAPH_STATUS_PEGC))
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return TestMmio(DeviceExtension);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_EGC_FF_UNPROTECT);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_MODE_PEGC_ENABLE);
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Success = GraphGetStatus(GRAPH_STATUS_PEGC) ? TestMmio(DeviceExtension) : FALSE;
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_MODE_PEGC_DISABLE);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_EGC_FF_PROTECT);
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return Success;
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}
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CODE_SEG("PAGE")
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VP_STATUS
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FASTCALL
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Pc98VidSetCurrentMode(
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_In_ PHW_DEVICE_EXTENSION DeviceExtension,
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_In_ PVIDEO_MODE RequestedMode)
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{
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SYNCPARAM SyncParameters;
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CSRFORMPARAM CursorParameters;
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CSRWPARAM CursorPosition;
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PITCHPARAM PitchParameters;
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PRAMPARAM RamParameters;
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ZOOMPARAM ZoomParameters;
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UCHAR RelayState;
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PAGED_CODE();
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VideoDebugPrint((Trace, "%s() Mode %d\n",
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__FUNCTION__, RequestedMode->RequestedMode));
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if (RequestedMode->RequestedMode > DeviceExtension->ModeCount)
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return ERROR_INVALID_PARAMETER;
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/* Blank screen */
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VideoPortWritePortUchar((PUCHAR)GDC1_IO_o_MODE_FLIPFLOP1, GRAPH_MODE_DISPLAY_DISABLE);
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/* RESET, without FIFO check */
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VideoPortWritePortUchar((PUCHAR)GDC1_IO_o_COMMAND, GDC_COMMAND_RESET1);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_COMMAND, GDC_COMMAND_RESET1);
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/* Configure chipset */
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VideoPortWritePortUchar((PUCHAR)GDC1_IO_o_MODE_FLIPFLOP1, GRAPH_MODE_COLORED);
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VideoPortWritePortUchar((PUCHAR)GDC1_IO_o_MODE_FLIPFLOP1, GDC2_MODE_ODD_RLINE_SHOW);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_MODE_COLORS_16);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_MODE_GRCG);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_MODE_LCD);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_MODE_LINES_400);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2,
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VideoModes[RequestedMode->RequestedMode].Clock1);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2,
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VideoModes[RequestedMode->RequestedMode].Clock2);
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VideoPortWritePortUchar((PUCHAR)GRAPH_IO_o_HORIZONTAL_SCAN_RATE,
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VideoModes[RequestedMode->RequestedMode].HorizontalScanRate);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_VIDEO_PAGE, 0);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_VIDEO_PAGE_ACCESS, 0);
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/* =========================== MASTER ============================ */
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/* MASTER */
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WRITE_GDC1_COMMAND(GDC_COMMAND_MASTER);
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/* SYNC */
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SyncParameters = VideoModes[RequestedMode->RequestedMode].TextSyncParameters;
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SyncParameters.Flags = SYNC_DISPLAY_MODE_GRAPHICS_AND_CHARACTERS | SYNC_VIDEO_FRAMING_NONINTERLACED |
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SYNC_DRAW_ONLY_DURING_RETRACE_BLANKING | SYNC_STATIC_RAM_NO_REFRESH;
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WRITE_GDC1_COMMAND(GDC_COMMAND_SYNC_ON);
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WRITE_GDC_SYNC((PUCHAR)GDC1_IO_o_PARAM, &SyncParameters);
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/* CSRFORM */
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CursorParameters.Show = FALSE;
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CursorParameters.Blink = FALSE;
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CursorParameters.BlinkRate = 12;
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CursorParameters.LinesPerRow = 16;
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CursorParameters.StartScanLine = 0;
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CursorParameters.EndScanLine = 15;
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WRITE_GDC1_COMMAND(GDC_COMMAND_CSRFORM);
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WRITE_GDC_CSRFORM((PUCHAR)GDC1_IO_o_PARAM, &CursorParameters);
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/* PITCH */
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PitchParameters.WordsPerScanline = 80;
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WRITE_GDC1_COMMAND(GDC_COMMAND_PITCH);
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WRITE_GDC_PITCH((PUCHAR)GDC1_IO_o_PARAM, &PitchParameters);
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/* PRAM */
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RamParameters.StartingAddress = 0;
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RamParameters.Length = 1023;
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RamParameters.ImageBit = FALSE;
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RamParameters.WideDisplay = FALSE;
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WRITE_GDC1_COMMAND(GDC_COMMAND_PRAM);
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WRITE_GDC_PRAM((PUCHAR)GDC1_IO_o_PARAM, &RamParameters);
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/* ZOOM */
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ZoomParameters.DisplayZoomFactor = 0;
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ZoomParameters.WritingZoomFactor = 0;
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WRITE_GDC1_COMMAND(GDC_COMMAND_ZOOM);
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WRITE_GDC_ZOOM((PUCHAR)GDC1_IO_o_PARAM, &ZoomParameters);
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/* CSRW */
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CursorPosition.CursorAddress = 0;
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CursorPosition.DotAddress = 0;
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WRITE_GDC1_COMMAND(GDC_COMMAND_CSRW);
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WRITE_GDC_CSRW((PUCHAR)GDC1_IO_o_PARAM, &CursorPosition);
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/* START */
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WRITE_GDC1_COMMAND(GDC_COMMAND_BCTRL_START);
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/* ============================ SLAVE ============================ */
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/* SLAVE */
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WRITE_GDC2_COMMAND(GDC_COMMAND_SLAVE);
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/* SYNC */
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SyncParameters = VideoModes[RequestedMode->RequestedMode].VideoSyncParameters;
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SyncParameters.Flags = SYNC_DISPLAY_MODE_GRAPHICS | SYNC_VIDEO_FRAMING_NONINTERLACED |
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SYNC_DRAW_DURING_ACTIVE_DISPLAY_TIME_AND_RETRACE_BLANKING |
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SYNC_STATIC_RAM_NO_REFRESH;
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WRITE_GDC2_COMMAND(GDC_COMMAND_SYNC_ON);
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WRITE_GDC_SYNC((PUCHAR)GDC2_IO_o_PARAM, &SyncParameters);
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/* CSRFORM */
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CursorParameters.Show = FALSE;
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CursorParameters.Blink = FALSE;
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CursorParameters.BlinkRate = 0;
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CursorParameters.LinesPerRow = 1;
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CursorParameters.StartScanLine = 0;
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CursorParameters.EndScanLine = 0;
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WRITE_GDC2_COMMAND(GDC_COMMAND_CSRFORM);
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WRITE_GDC_CSRFORM((PUCHAR)GDC2_IO_o_PARAM, &CursorParameters);
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/* PITCH */
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PitchParameters.WordsPerScanline = 80;
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WRITE_GDC2_COMMAND(GDC_COMMAND_PITCH);
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WRITE_GDC_PITCH((PUCHAR)GDC2_IO_o_PARAM, &PitchParameters);
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/* PRAM */
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RamParameters.StartingAddress = 0;
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RamParameters.Length = 1023;
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RamParameters.ImageBit = TRUE;
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RamParameters.WideDisplay = FALSE;
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WRITE_GDC2_COMMAND(GDC_COMMAND_PRAM);
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WRITE_GDC_PRAM((PUCHAR)GDC2_IO_o_PARAM, &RamParameters);
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/* ZOOM */
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ZoomParameters.DisplayZoomFactor = 0;
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ZoomParameters.WritingZoomFactor = 0;
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WRITE_GDC2_COMMAND(GDC_COMMAND_ZOOM);
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WRITE_GDC_ZOOM((PUCHAR)GDC2_IO_o_PARAM, &ZoomParameters);
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/* CSRW */
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CursorPosition.CursorAddress = 0;
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CursorPosition.DotAddress = 0;
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WRITE_GDC2_COMMAND(GDC_COMMAND_CSRW);
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WRITE_GDC_CSRW((PUCHAR)GDC2_IO_o_PARAM, &CursorPosition);
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/* Synchronize the master sync source */
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TextSync();
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TextSync();
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TextSync();
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TextSync();
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/* START */
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WRITE_GDC2_COMMAND(GDC_COMMAND_BCTRL_START);
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/* 256 colors, packed pixel */
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_EGC_FF_UNPROTECT);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_MODE_PEGC_ENABLE);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2,
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VideoModes[RequestedMode->RequestedMode].Mem);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_MODE_FLIPFLOP2, GDC2_EGC_FF_PROTECT);
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VideoPortWriteRegisterUshort((PUSHORT)(DeviceExtension->PegcControlVa +
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PEGC_MMIO_MODE), PEGC_MODE_PACKED);
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VideoPortWriteRegisterUshort((PUSHORT)(DeviceExtension->PegcControlVa +
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PEGC_MMIO_FRAMEBUFFER), PEGC_FB_MAP);
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/* Select the video source */
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RelayState = VideoPortReadPortUchar((PUCHAR)GRAPH_IO_i_RELAY) &
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~(GRAPH_RELAY_0 | GRAPH_RELAY_1);
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RelayState |= GRAPH_VID_SRC_INTERNAL | GRAPH_SRC_GDC;
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VideoPortWritePortUchar((PUCHAR)GRAPH_IO_o_RELAY, RelayState);
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/* Unblank screen */
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VideoPortWritePortUchar((PUCHAR)GDC1_IO_o_MODE_FLIPFLOP1, GRAPH_MODE_DISPLAY_ENABLE);
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DeviceExtension->CurrentMode = RequestedMode->RequestedMode;
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return NO_ERROR;
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}
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CODE_SEG("PAGE")
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VP_STATUS
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FASTCALL
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Pc98VidSetColorRegisters(
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_In_ PVIDEO_CLUT ColorLookUpTable)
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{
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USHORT Entry;
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PAGED_CODE();
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VideoDebugPrint((Trace, "%s()\n", __FUNCTION__));
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if (ColorLookUpTable->NumEntries > PEGC_MAX_COLORS)
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return ERROR_INVALID_PARAMETER;
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for (Entry = ColorLookUpTable->FirstEntry;
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Entry < ColorLookUpTable->FirstEntry + ColorLookUpTable->NumEntries;
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++Entry)
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{
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_PALETTE_INDEX, Entry);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_RED,
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ColorLookUpTable->LookupTable[Entry].RgbArray.Red);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_GREEN,
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ColorLookUpTable->LookupTable[Entry].RgbArray.Green);
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VideoPortWritePortUchar((PUCHAR)GDC2_IO_o_BLUE,
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ColorLookUpTable->LookupTable[Entry].RgbArray.Blue);
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}
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return NO_ERROR;
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}
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CODE_SEG("PAGE")
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VP_STATUS
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NTAPI
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Pc98VidGetPowerState(
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_In_ PVOID HwDeviceExtension,
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_In_ ULONG HwId,
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_In_ PVIDEO_POWER_MANAGEMENT VideoPowerControl)
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{
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PAGED_CODE();
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VideoDebugPrint((Trace, "%s() Id %lX, State %x\n",
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__FUNCTION__, HwId, VideoPowerControl->PowerState));
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if (HwId == MONITOR_HW_ID || HwId == DISPLAY_ADAPTER_HW_ID)
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{
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switch (VideoPowerControl->PowerState)
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{
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case VideoPowerOn:
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case VideoPowerStandBy:
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case VideoPowerSuspend:
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case VideoPowerOff:
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case VideoPowerShutdown:
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return NO_ERROR;
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}
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}
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return ERROR_DEVICE_REINITIALIZATION_NEEDED;
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}
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CODE_SEG("PAGE")
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VP_STATUS
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NTAPI
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Pc98VidSetPowerState(
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_In_ PVOID HwDeviceExtension,
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_In_ ULONG HwId,
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_In_ PVIDEO_POWER_MANAGEMENT VideoPowerControl)
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{
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UCHAR Dpms;
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PAGED_CODE();
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VideoDebugPrint((Trace, "%s() Id %lX, State %x\n",
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__FUNCTION__, HwId, VideoPowerControl->PowerState));
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if (HwId == MONITOR_HW_ID)
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{
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Dpms = VideoPortReadPortUchar((PUCHAR)GRAPH_IO_i_DPMS);
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switch (VideoPowerControl->PowerState)
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{
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case VideoPowerOn:
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/* Turn on HS/VS signals */
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Dpms &= ~(GRAPH_DPMS_HSYNC_MASK | GRAPH_DPMS_VSYNC_MASK);
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VideoPortWritePortUchar((PUCHAR)GRAPH_IO_o_DPMS, Dpms);
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/* Unblank screen */
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VideoPortWritePortUchar((PUCHAR)GDC1_IO_o_MODE_FLIPFLOP1,
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GRAPH_MODE_DISPLAY_ENABLE);
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break;
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case VideoPowerStandBy:
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/* Disable HS signal */
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Dpms = (Dpms | GRAPH_DPMS_HSYNC_MASK) & ~GRAPH_DPMS_VSYNC_MASK;
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VideoPortWritePortUchar((PUCHAR)GRAPH_IO_o_DPMS, Dpms);
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break;
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case VideoPowerSuspend:
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/* Disable VS signal */
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Dpms = (Dpms | GRAPH_DPMS_VSYNC_MASK) & ~GRAPH_DPMS_HSYNC_MASK;
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VideoPortWritePortUchar((PUCHAR)GRAPH_IO_o_DPMS, Dpms);
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break;
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case VideoPowerOff:
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case VideoPowerShutdown:
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/* Turn off HS/VS signals */
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Dpms |= GRAPH_DPMS_HSYNC_MASK | GRAPH_DPMS_VSYNC_MASK;
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VideoPortWritePortUchar((PUCHAR)GRAPH_IO_o_DPMS, Dpms);
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/* Blank screen */
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VideoPortWritePortUchar((PUCHAR)GDC1_IO_o_MODE_FLIPFLOP1,
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GRAPH_MODE_DISPLAY_DISABLE);
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break;
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}
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}
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return NO_ERROR;
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}
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