616 lines
16 KiB
C
616 lines
16 KiB
C
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/**************************************************************************\
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$Header: o:\src/RCS/MTXVIDEO.C 1.2 95/07/07 06:16:42 jyharbec Exp $
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$Log: MTXVIDEO.C $
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* Revision 1.2 95/07/07 06:16:42 jyharbec
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* *** empty log message ***
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*
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* Revision 1.1 95/05/02 05:16:34 jyharbec
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* Initial revision
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*
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\**************************************************************************/
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/*/****************************************************************************
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* name: mtxvideo.c
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*
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* description: Routine for switching between VGA mode and TERMINATOR mode
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*
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* designed: Christian Toutant
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* last modified: $Author: jyharbec $, $Date: 95/07/07 06:16:42 $
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*
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* version: $Id: MTXVIDEO.C 1.2 95/07/07 06:16:42 jyharbec Exp $
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*
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*
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* static void wrDacReg(word reg, byte mask, byte donnee)
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* bool CheckVgaEn()
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* static void setVgaMode(word mode)
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* static void restoreVgaLUT()
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* void ScreenOn(void)
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* void ScreenOff(void)
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* static void SetVgaEn()
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* static void SetHiresMode()
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* void mtxSetVideoMode (word mode)
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* word mtxGetVideoMode (void)
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*
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******************************************************************************/
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#include "switches.h"
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#ifdef WIN31
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#include "windows.h"
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#endif
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#ifndef WINDOWS_NT
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dos.h>
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#include <conio.h>
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#include <time.h>
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#endif
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#include "defbind.h"
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#include "bind.h"
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#include "def.h"
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#include "mga.h"
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#include "mgai.h"
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#include "mtxpci.h"
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#ifdef WINDOWS_NT
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#include "edid.h"
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#include "ntmga.h"
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static void SetHiresMode(void);
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void mtxSetVideoMode (word mode);
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word mtxGetVideoMode (void);
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#if defined(ALLOC_PRAGMA)
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#pragma alloc_text(PAGE,SetHiresMode)
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#pragma alloc_text(PAGE,mtxSetVideoMode)
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#pragma alloc_text(PAGE,mtxGetVideoMode)
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//Not to be paged out:
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//#pragma alloc_text(PAGE,wrDacReg)
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//#pragma alloc_text(PAGE,CheckVgaEn)
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//#pragma alloc_text(PAGE,setVgaMode)
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//#pragma alloc_text(PAGE,restoreVgaLUT)
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//#pragma alloc_text(PAGE,ScreenOn)
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//#pragma alloc_text(PAGE,ScreenOff)
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//#pragma alloc_text(PAGE,SetVgaEn)
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#endif
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extern PEXT_HW_DEVICE_EXTENSION pExtHwDeviceExtension;
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#endif
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typedef struct {unsigned short r, g, b;} DacReg;
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extern DacReg vgaDac[];
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#ifndef WINDOWS_NT
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#define SEQ_ADDR 0x3c4
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#define SEQ_DATA 0x3c5
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#else
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#define SEQ_ADDR (StormAccessRanges[1] + 0x3c4 - 0x3C0)
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#define SEQ_DATA (StormAccessRanges[1] + 0x3c5 - 0x3C0)
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#endif
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#define BOARD_MGA_VL 0x0a
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#define BOARD_MGA_VL_M 0x0e
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/*-------------- Start of extern global variables -----------------------*/
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extern volatile byte _FAR* pMGA;
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extern HwData Hw[];
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extern byte iBoard;
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extern byte InitBuf[NB_BOARD_MAX][INITBUF_S];
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extern byte VideoBuf[NB_BOARD_MAX][VIDEOBUF_S];
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extern word mtxVideoMode;
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extern void MGASysInit(byte *);
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extern void MGAVidInit(byte *, byte *);
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/*--------------- end of extern global variables ------------------------*/
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/*----------------------start of local Variables ---------------------------*/
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/* Dac VGA */
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static PixMap cursorStat = {0,0,0,0x102,0};
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byte saveBitOperation = 0;
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/*---------------------- End of Local variables ----------------------------*/
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/*** PROTOTYPES ***/
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extern void delay_us(dword delai);
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#ifndef WIN31
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extern bool checkCursorEn(void);
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#endif
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/*---------------------------------------------------------------------------
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| name: wrDacReg
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| description: Write a byte to a ramdac register
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| parameters: - reg : index value to access register
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| - mask
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| - data
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| calls: -
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| returns: -
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----------------------------------------------------------------------------*/
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static void wrDacReg(word reg, byte mask, byte data)
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{
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byte tmp;
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if (mask != 0xff)
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{
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dacReadBYTE((reg), tmp);
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data = (tmp & ~mask) | data;
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}
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dacWriteBYTE((reg), data);
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}
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/*---------------------------------------------------------------------------
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| name: CheckVgaEn
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| description: Return state of the VGA
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| parameters: -
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| calls: -
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| returns: - mtxOK: VGA I/O locations are decoded
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| mtxFAIL: ... not decoded
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----------------------------------------------------------------------------*/
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bool CheckVgaEn()
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{
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byte tmpByte=0;
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mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_INDEX), VGA_CRTCEXT3);
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mgaReadBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
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if(tmpByte & 0x80)
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return(mtxFAIL);
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else
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return(mtxOK);
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}
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/*------------------------------------------------------
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* For OS2
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*------------------------------------------------------*/
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#ifdef OS2
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/*MTX* modified by mp on monday, 5/3/93 */
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int mtxCheckMGAEnable()
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{
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int ret_value;
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ret_value = (int)mtxVideoMode;
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return(ret_value);
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}
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int CheckVgaEnable()
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{
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byte tmpByte;
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}
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/*END*/
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#endif
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/*---------------------------------------------------------------------------
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| name: setVgaMode
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| description: Call bios for select VGA video mode
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| parameters: - VGA mode
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| calls: -
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| returns: -
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----------------------------------------------------------------------------*/
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static void setVgaMode(word mode)
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{
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//[dlee] Modified for Windows NT - can't call _int86...
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#ifdef WINDOWS_NT
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#else /* #ifdef WINDOWS_NT */
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#ifdef OS2
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setupVga();
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#else
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union _REGS r;
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#ifdef __WATCOMC__
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r.w.ax = mode;
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#else
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r.x.ax = mode;
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#endif
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_int86(0x10, &r, &r);
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#endif
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#endif /* #ifdef WINDOWS_NT */
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}
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/*---------------------------------------------------------------------------
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| name: restoreVgaLUT
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| description: Reprogram ramdac LUT from vgaDac array
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| parameters: -
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| calls: -
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| returns: -
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----------------------------------------------------------------------------*/
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static void restoreVgaLUT()
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{
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word i;
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switch(Hw[iBoard].EpromData.RamdacType>>8)
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{
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case TVP3026:
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case TVP3030:
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wrDacReg(TVP3026_WADR_PAL,0xff,00);
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for(i = 0; i < 256; i ++)
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{
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wrDacReg(TVP3026_COL_PAL, 0xff, (byte) vgaDac[i].r);
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wrDacReg(TVP3026_COL_PAL, 0xff, (byte) vgaDac[i].g);
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wrDacReg(TVP3026_COL_PAL, 0xff, (byte) vgaDac[i].b);
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}
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break;
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default:
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break;
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}
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}
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/*---------------------------------------------------------------------------
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| name: ScreenOn
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| description: unblank the screen
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| parameters: -
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| calls: -
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| returns: -
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----------------------------------------------------------------------------*/
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/* Works only if board is in mode terminator */
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void ScreenOn(void)
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{
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byte TmpByte;
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/* Unblank the screen */
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mgaWriteBYTE(*(pMGA+STORM_OFFSET + VGA_SEQ_INDEX), VGA_SEQ1);
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mgaReadBYTE(*(pMGA+STORM_OFFSET + VGA_SEQ_DATA), TmpByte);
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TmpByte &= 0xdf; /* screen on */
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mgaWriteBYTE(*(pMGA+STORM_OFFSET + VGA_SEQ_DATA), TmpByte);
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}
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/*---------------------------------------------------------------------------
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| name: ScreenOff
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| description: Blank the screen
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| parameters: -
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| calls: -
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| returns: -
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----------------------------------------------------------------------------*/
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/* Works only if board is in mode terminator */
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void ScreenOff(void)
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{
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byte TmpByte;
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/* Blank the screen */
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mgaWriteBYTE(*(pMGA+STORM_OFFSET + VGA_SEQ_INDEX), VGA_SEQ1);
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mgaReadBYTE(*(pMGA+STORM_OFFSET + VGA_SEQ_DATA), TmpByte);
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TmpByte |= 0x20; /* screen off */
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mgaWriteBYTE(*(pMGA+STORM_OFFSET + VGA_SEQ_DATA), TmpByte);
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}
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/*---------------------------------------------------------------------------
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| name: SetVgaEn
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| description: Initialise all the MGA register for the VGA mode
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| parameters: -
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| calls: -
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| returns: -
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----------------------------------------------------------------------------*/
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#ifdef WINDOWS_NT
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void SetVgaEn(void)
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#else
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static void SetVgaEn(void)
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#endif
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{
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byte tmpByte;
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dword tmpDword;
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#ifndef WIN31
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/*** Save cursor state in hi-res mode ***/
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cursorStat.Width = Hw[iBoard].CursorData.CurWidth;
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cursorStat.Height = checkCursorEn();
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#endif
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/*------------------------ Host vgaen inactif ------------------------------*/
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/* -- We select the VGA clock (else it could be too high for the
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VGA section : 28.322MHz */
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mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_MISC_W), 0x65);
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/*** Enlever a la demande de Rene pour le VDD (rammapen) ***/
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/* mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_MISC_W), 0x67); */
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/*** reset extended crtc start address ***/
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mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_INDEX), VGA_CRTCEXT0);
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mgaReadBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
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tmpByte &= 0xf0;
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mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
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/*--------------------------------------------------------------------------*/
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/*------ reset extern hsync and vsync polarity (no inversion ------*/
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if ( (Hw[iBoard].EpromData.RamdacType>>8 == TVP3026) ||
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(Hw[iBoard].EpromData.RamdacType>>8 == TVP3030))
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{
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dacWriteBYTE(TVP3026_INDEX, TVP3026_GEN_CTL);
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dacReadBYTE(TVP3026_DATA, tmpByte);
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/* Put hsync = negative, vsync = negative */
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tmpByte = tmpByte & 0xfc;
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dacWriteBYTE(TVP3026_INDEX, TVP3026_GEN_CTL);
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dacWriteBYTE(TVP3026_DATA, tmpByte);
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}
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/*--------------------------------------------------------------------------*/
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/*-------------------------- Host vgaen actif ------------------------------*/
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/*** Interleave bit is reset ***/
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pciReadConfigDWord( PCI_OPTION, &tmpDword);
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tmpDword &= 0xffffefff;
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pciWriteConfigDWord( PCI_OPTION, tmpDword);
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/*--------------------------------------------------------------------------*/
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/*** Put mgamode to 0 : VGA ***/
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mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_INDEX), VGA_CRTCEXT3);
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mgaReadBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
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tmpByte &= 0x7f;
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mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
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|
|
||
|
|
/*---------------------------- Place DAC in VGA mode -----------------------*/
|
||
|
|
|
||
|
|
switch(Hw[iBoard].EpromData.RamdacType>>8)
|
||
|
|
{
|
||
|
|
case TVP3026:
|
||
|
|
/*** Disable 8/6 pin, ... ***/
|
||
|
|
dacWriteBYTE(TVP3026_INDEX, TVP3026_MISC_CTL);
|
||
|
|
dacReadBYTE(TVP3026_DATA, tmpByte);
|
||
|
|
dacWriteBYTE(TVP3026_DATA, tmpByte | 0x04);
|
||
|
|
|
||
|
|
/*** Overscan disable, sync disable,...***/
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_GEN_CTL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 00);
|
||
|
|
|
||
|
|
/*** Select CLK0 as clock source, no division of VCLK ***/
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_CLK_SEL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 0x70);
|
||
|
|
|
||
|
|
/*** Ramdac in VGA mode ***/
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_TRUE_COLOR_CTL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 0x80);
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_MUX_CTL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 0x98);
|
||
|
|
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_MCLK_CTL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 0x18);
|
||
|
|
|
||
|
|
break;
|
||
|
|
|
||
|
|
case TVP3030:
|
||
|
|
/*** Overscan disable, sync disable,...***/
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_GEN_CTL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 00);
|
||
|
|
|
||
|
|
/*** Select CLK0 as clock source, no division of VCLK ***/
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_CLK_SEL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 0x05);
|
||
|
|
|
||
|
|
/*** Ramdac in VGA mode ***/
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_TRUE_COLOR_CTL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 0x80);
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_MUX_CTL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 0xD8);
|
||
|
|
|
||
|
|
wrDacReg(TVP3026_INDEX, 0xff, TVP3026_MCLK_CTL);
|
||
|
|
wrDacReg(TVP3026_DATA, 0xff, 0x18);
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
/*--------------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*-------------------------- Restore VGA mode ------------------------------*/
|
||
|
|
setVgaMode(3);
|
||
|
|
|
||
|
|
#ifndef WINDOWS_NT
|
||
|
|
restoreVgaLUT(); /* Dac */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*--------------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------
|
||
|
|
| name: SetHiresMode
|
||
|
|
|
|
||
|
|
| description: Initialize all MGA registers for Hi-res mode
|
||
|
|
|
|
||
|
|
| parameters: -
|
||
|
|
| calls: -
|
||
|
|
| returns: -
|
||
|
|
----------------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
static void SetHiresMode(void)
|
||
|
|
{
|
||
|
|
byte tmpByte;
|
||
|
|
|
||
|
|
|
||
|
|
/*** Put mgamode to 1 : Hi-Res ***/
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_INDEX), VGA_CRTCEXT3);
|
||
|
|
mgaReadBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
|
||
|
|
tmpByte |= 0x80;
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
|
||
|
|
|
||
|
|
|
||
|
|
/*** select positive horizontal retrace ***/
|
||
|
|
/* rammapen = 0 */
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_MISC_W), 0x25);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------
|
||
|
|
| name: mtxSetVideoMode
|
||
|
|
|
|
||
|
|
| description: Select Video mode (VGA/Hi-res)
|
||
|
|
|
|
||
|
|
| parameters: - mode: (mtxVGA or mtxADV_MODE)
|
||
|
|
| calls: -
|
||
|
|
| returns: -
|
||
|
|
----------------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
void mtxSetVideoMode (word mode)
|
||
|
|
{
|
||
|
|
byte tmpByte;
|
||
|
|
|
||
|
|
|
||
|
|
switch(mode)
|
||
|
|
{
|
||
|
|
case mtxVGA:
|
||
|
|
if (Hw[iBoard].VGAEnable && !CheckVgaEn())
|
||
|
|
{
|
||
|
|
ScreenOff();
|
||
|
|
|
||
|
|
/*** Desactivate HSYNC AND VSYNC ***/
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_INDEX), 1);
|
||
|
|
mgaReadBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte | 0x30);
|
||
|
|
|
||
|
|
|
||
|
|
/*** Be sure to wait the end of any operation ***/
|
||
|
|
mgaPollBYTE(*(pMGA + STORM_OFFSET + STORM_STATUS + 2),0x00,0x01);
|
||
|
|
|
||
|
|
SetVgaEn();
|
||
|
|
|
||
|
|
/*** Activate HSYNC AND VSYNC ***/
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_INDEX), 1);
|
||
|
|
mgaReadBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte & 0xcf);
|
||
|
|
|
||
|
|
ScreenOn();
|
||
|
|
mtxVideoMode = mtxVGA;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case mtxADV_MODE:
|
||
|
|
if (CheckVgaEn())
|
||
|
|
{
|
||
|
|
ScreenOff();
|
||
|
|
|
||
|
|
/*** Desactivate HSYNC AND VSYNC ***/
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_INDEX), 1);
|
||
|
|
mgaReadBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte | 0x30);
|
||
|
|
|
||
|
|
|
||
|
|
/*** Be sure to wait the end of any operation ***/
|
||
|
|
mgaPollBYTE(*(pMGA + STORM_OFFSET + STORM_STATUS + 2),0x00,0x01);
|
||
|
|
|
||
|
|
SetHiresMode();
|
||
|
|
if (Hw[iBoard].pCurrentHwMode != 0)
|
||
|
|
{
|
||
|
|
MGASysInit(InitBuf[iBoard]);
|
||
|
|
if (Hw[iBoard].pCurrentDisplayMode != 0)
|
||
|
|
{
|
||
|
|
MGAVidInit(InitBuf[iBoard], VideoBuf[iBoard]);
|
||
|
|
|
||
|
|
#ifndef WIN31
|
||
|
|
/* Restore Cursor visibility */
|
||
|
|
if (cursorStat.Width > 0)
|
||
|
|
{
|
||
|
|
mtxCursorSetShape(&cursorStat);
|
||
|
|
if (cursorStat.Height > 0)
|
||
|
|
mtxCursorEnable(1);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*** Activate HSYNC AND VSYNC ***/
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_INDEX), 1);
|
||
|
|
mgaReadBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte);
|
||
|
|
mgaWriteBYTE(*(pMGA + STORM_OFFSET + VGA_CRTCEXT_DATA), tmpByte & 0xcf);
|
||
|
|
|
||
|
|
ScreenOn();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
mtxVideoMode = mtxADV_MODE;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*---------------------------------------------------------------------------
|
||
|
|
| name: mtxGetVideoMode
|
||
|
|
|
|
||
|
|
| description: Get video mode
|
||
|
|
|
|
||
|
|
| parameters: -
|
||
|
|
| calls: -
|
||
|
|
| returns: - mtxVGA : mode VGA
|
||
|
|
| mtxADV_MODE : mode high resolution
|
||
|
|
----------------------------------------------------------------------------*/
|
||
|
|
|
||
|
|
word mtxGetVideoMode (void)
|
||
|
|
{
|
||
|
|
return (mtxVideoMode);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|