611 lines
12 KiB
C
611 lines
12 KiB
C
/*
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File: ATIDrvr.c
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Contains: xxx put contents here xxx
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Written by: xxx put writers here xxx
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Copyright: © 1993 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<1> 11/5/93 fau first checked in
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<1> 10/27/93 fau first checked in
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<1> 10/19/93 fau first checked in
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*/
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/*-------------------------------------------------------------------------
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*start
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*
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*Name: ATIDriver.c
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*Creator: George D. Wilson Jr.
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*Date: 8/15/93
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*
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*Purpose: Main interface file for ATI video driver.
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*
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*Category: Macintosh driver
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*File: ATIDrvr.c
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*
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*Exports: OpenDRVR - Handles initialization of driver.
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* CloseDRVR - Handles shutdown of driver.
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* ControlDRVR - Handles driver control calls.
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* StatusDRVR - Handles driver status calls.
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* WaitForVBL - Returns when vertical blanking is active.
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*
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*Locals:
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*
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*Detailed:
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*
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*Note:
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*
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*History:
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*
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* Date Programmer Modification
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* -------- ---------- -----------------------------------------
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*
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*stop
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*-----------------------------------------------------------------------*/
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/*-------------------------------------------------------------------------
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*
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* Includes
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*
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*-----------------------------------------------------------------------*/
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#include <Types.h>
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#include <Video.h>
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#include <Devices.h>
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#include <Errors.h>
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#include <OSUtils.h>
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#include <Slots.h>
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#include <Memory.h>
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#include <Retrace.h>
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#include "ATIStdTypes.h"
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#include "ATI.h"
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#include "ATIDrvr.h"
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#include "ATIVideo.h"
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#include "NubEqu.h"
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/*-------------------------------------------------------------------------
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*
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* Imported Procedures
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*
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*-----------------------------------------------------------------------*/
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extern UInt16 GetRowBytes(UInt8 monitorID, UInt8 videoMode, UInt8 theSlot);
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extern void IntHandlerNuBus();
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/*-------------------------------------------------------------------------
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*
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* Exported Procedures
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*
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*-----------------------------------------------------------------------*/
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UInt16 OpenDRVR (CntrlParam *pb, AuxDCEPtr dce);
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UInt16 CloseDRVR (CntrlParam *pb, DCtlPtr dce);
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UInt16 ControlDRVR (CntrlParam *pb, DCtlPtr dce);
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UInt16 StatusDRVR (CntrlParam *pb, DCtlPtr dce);
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/*-------------------------------------------------------------------------
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*
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* Beginning of Procedure Definitions
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*
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*-----------------------------------------------------------------------*/
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/*-------------------------------------------------------------------------
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*start
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*
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*Name: WaitForVBL
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*Creator: George D. Wilson Jr.
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*Date: 3/20/92
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*
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*Purpose:
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*
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*Category:
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*File:
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*
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*Calls:
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*
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*Called By:
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*
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*Entry:
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*
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*Alters:
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*
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*Exit:
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*
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*Detailed:
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*
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*Algorithm:
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*
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*Note:
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*
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*History:
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*
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* Date Programmer Modification
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* -------- ---------- -----------------------------------------
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*
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*stop
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*-----------------------------------------------------------------------*/
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void WaitForVBL()
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{
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short i=0;
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i = i+1;
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// DebugStr("\pWaitForVBL");
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} /* End of WaitForVBL */
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/*-------------------------------------------------------------------------
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*start
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*
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*Name: InstallInterruptRoutine
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*Creator: George D. Wilson Jr.
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*Date: 3/20/92
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*
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*Purpose:
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*
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*Category:
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*File:
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*
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*Calls:
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*
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*Called By:
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*
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*Entry:
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*
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*Alters:
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*
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*Exit:
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*
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*Detailed:
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*
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*Algorithm:
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*
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*Note:
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*
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*History:
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*
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* Date Programmer Modification
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* -------- ---------- -----------------------------------------
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*
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*stop
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*-----------------------------------------------------------------------*/
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void InstallInterruptRoutine(DCtlPtr dce)
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{
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// OSErr err;
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globalsPtr g;
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// UInt32 intHi;
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// DebugStr("\pInstallInterruptRoutine");
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g = (globalsPtr) *(dce->dCtlStorage);
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// RegisterNubInt(kVideoLineInt,(InterruptHdlr) IntHandlerNuBus,(long) dce);
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g->gInterruptsEnabled = kVBLInterruptEnabled;
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} /* End of InstallInterruptRoutine */
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/*-------------------------------------------------------------------------
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*start
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*
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*Name: RemoveInterruptRoutine
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*Creator: George D. Wilson Jr.
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*Date: 3/20/92
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*
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*Purpose:
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*
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*Category:
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*File:
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*
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*Calls:
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*
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*Called By:
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*
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*Entry:
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*
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*Alters:
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*
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*Exit:
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*
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*Detailed:
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*
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*Algorithm:
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*
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*Note:
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*
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*History:
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*
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* Date Programmer Modification
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* -------- ---------- -----------------------------------------
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*
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*stop
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*-----------------------------------------------------------------------*/
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void RemoveInterruptRoutine(DCtlPtr dce)
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{
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// OSErr err;
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globalsPtr g;
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// DebugStr("\pRemoveInterruptRoutine");
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g = (globalsPtr) *(dce->dCtlStorage);
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if ( g->gInterruptsEnabled ) {
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WaitForVBL();
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if ( *(long*)(kMySlot | kNMRQDisable) );
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// RemoveNubInt(kVideoLineInt);
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g->gInterruptsEnabled = kVBLInterruptDisabled;
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}
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}
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/*-------------------------------------------------------------------------
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*start
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*
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*Name: OpenDRVR
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*Creator: George D. Wilson Jr.
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*Date: 3/20/92
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*
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*Purpose:
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*
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*Category:
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*File:
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*
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*Calls:
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*
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*Called By:
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*
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*Entry:
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*
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*Alters:
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*
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*Exit:
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*
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*Detailed:
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*
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*Algorithm:
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*
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*Note:
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*
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*History:
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*
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* Date Programmer Modification
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* -------- ---------- -----------------------------------------
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*
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*stop
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*-----------------------------------------------------------------------*/
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UInt16 OpenDRVR (CntrlParam *pb, AuxDCEPtr dce)
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{
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#pragma unused(pb)
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globalsPtr g;
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Handle globs;
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UInt16 i;
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SpBlock spPb;
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// OSErr err;
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SPRAMRecord sPRAM;
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UInt8 videoMode;
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// DebugStr("\pOpenDRVR");
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globs = nil;
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ResrvMem(GLOBALSSIZE);
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globs = NewHandleSysClear(GLOBALSSIZE);
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if ( globs == nil ) return(openErr);
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dce->dCtlStorage = globs;
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HLock(globs);
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g = (globalsPtr) *(globs);
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//==========================================================================
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// Zero all global data stuff
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//==========================================================================
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g->gGammaPtr = nil;
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g->gCurrentPage = kOurVidPage;
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g->gCurrentMode = kFirstVideoMode; // 8 bpp Fix this later •••
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g->gBaseAddr = (Ptr) (kATIVRAMAddr);
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g->gFBBaseAddr = (Ptr) (kATIVRAMAddr);
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g->gInterruptsEnabled = kVBLInterruptEnabled;
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g->gMonoOnly = false; // Device supports color •••
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g->gLuminanceMode = false; // Current mode is color •••
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g->gDirectMode = false;
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g->gNumLines = kNumLines480; // 13" is 480 •••
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g->gBigSlotNum = dce->dCtlSlot;
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g->gSlotNum = dce->dCtlSlot;
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videoMode = kFirstVideoMode;
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spPb.spSlot = g->gSlotNum;
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spPb.spResult = &sPRAM;
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#if 0
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err = SReadPRAMRec(&spPb);
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if ( err == noErr ) { // Did we get our PRAM?
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g->gMonitorID = sPRAM.vendorUse4; // No save the monitor ID
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g->gCurrentMode = sPRAM.vendorUse1; // Use the first video mode
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if ( g->gCurrentMode > kFirstVideoMode ) {
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g->gDirectMode = true;
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}
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}
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#else
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g->gDirectMode = false;
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g->gMonitorID = kRGB1312; // No save the monitor ID
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g->gCurrentMode = kFirstVideoMode;
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#endif
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g->gRowBytes = GetRowBytes(g->gMonitorID,g->gCurrentMode,g->gSlotNum);
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//==========================================================================
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// Get or build gamma table
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//==========================================================================
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g->gGammaPtr = (GammaTablePtr) NewPtrSysClear(sizeof(GammaTable));
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if ( g->gGammaPtr ) {
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g->gGammaPtr->gFormulaSize = 0;
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g->gGammaPtr->gChanCnt = 1;
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g->gGammaPtr->gDataCnt = 3;
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g->gGammaPtr->gDataCnt = 256;
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g->gGammaPtr->gDataWidth = 0x0008;
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for ( i = 0; i < kNumCLUTEntries; i++ ) {
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g->gGammaPtr->gFormulaData[i] = i;
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}
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}
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#ifndef ROM
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// InitNubInts();
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// InitNubIntMgr();
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#endif
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// InstallInterruptRoutine(dce);
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#ifdef ROM
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// err = AttachVBL(0x0E);
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#endif
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return(noErr); // Say open was successful
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}
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/*-------------------------------------------------------------------------
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*start
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*
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*Name: CloseDRVR
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*Creator: George D. Wilson Jr.
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*Date: 3/20/92
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*
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*Purpose:
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*
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*Category:
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*File:
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*
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*Calls:
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*
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*Called By:
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*
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*Entry:
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*
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*Alters:
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*
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*Exit:
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*
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*Detailed:
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*
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*Algorithm:
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*
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*Note:
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*
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*History:
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*
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* Date Programmer Modification
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* -------- ---------- -----------------------------------------
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*
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*stop
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*-----------------------------------------------------------------------*/
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UInt16 CloseDRVR (CntrlParam *pb, DCtlPtr dce)
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{
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#pragma unused(pb)
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globalsPtr g;
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UInt8 mmuMode;
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// DebugStr("\pCloseDRVR");
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g = (globalsPtr) *(dce->dCtlStorage);
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mmuMode = true32b;
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SwapMMUMode(&mmuMode);
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DoDisableVideo(g->gBigSlotNum); // Turn the video system off
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if ( g->gGammaPtr ) { // If we have a gamma table
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DisposPtr((Ptr) (g->gGammaPtr)); // Release the memory
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}
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if ( g->gInterruptsEnabled ) { // If cursor interrupts are enabled
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// RemoveInterruptRoutine(dce); // Disable them
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}
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SwapMMUMode(&mmuMode);
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DisposHandle(dce->dCtlStorage); // Release driver globals storage
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return(noErr); // Say open was successful
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}
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/*-------------------------------------------------------------------------
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*start
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*
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*Name: ControlDRVR
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*Creator: George D. Wilson Jr.
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*Date: 3/20/92
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*
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*Purpose:
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*
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*Category:
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*File:
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*
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*Calls:
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*
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*Called By:
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*
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*Entry:
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*
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*Alters:
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*
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*Exit:
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*
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*Detailed:
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*
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*Algorithm:
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*
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*Note:
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*
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*History:
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*
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* Date Programmer Modification
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* -------- ---------- -----------------------------------------
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*
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*stop
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*-----------------------------------------------------------------------*/
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UInt16 ControlDRVR (CntrlParam *pb, DCtlPtr dce)
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{
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Int16 message; // The control call being made
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OSErr err;
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globalsPtr g;
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UInt8 mmuMode;
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// DebugStr("\pControlDRVR");
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g = (globalsPtr) *(dce->dCtlStorage);
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mmuMode = true32b;
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SwapMMUMode(&mmuMode);
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message = pb->csCode;
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switch ( message ) {
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case cscReset:
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err = DoVideoReset((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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// case cscKillIO:
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// err = DoKillIO((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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// break;
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case cscSetMode:
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err = DoSetVideoMode((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscSetEntries:
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err = DoSetEntries((VDSetEntryPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscSetGamma:
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err = DoSetGamma((VDGamRecPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscGrayScreen:
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err = DoGrayPage((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscSetGray:
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err = DoSetGray((VDGrayPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscSetInterrupt:
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err = DoSetInterrupt((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscDirectSetEntries:
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err = DoDirectSetEntries((VDSetEntryPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscSetDefaultMode:
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err = DoSetDefaultMode((VDDefModePtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case 200:
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err = noErr;
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break;
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default: err = controlErr;
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} // End switch
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pb->ioResult = err;
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SwapMMUMode(&mmuMode);
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return(err);
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}
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/*-------------------------------------------------------------------------
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*start
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*
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*Name: StatusDRVR
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*Creator: George D. Wilson Jr.
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*Date: 3/20/92
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*
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*Purpose:
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*
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*Category:
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*File:
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*
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*Calls:
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*
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*Called By:
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*
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*Entry:
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*
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*Alters:
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*
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*Exit:
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*
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*Detailed:
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*
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*Algorithm:
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*
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*Note:
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*
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*History:
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*
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* Date Programmer Modification
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* -------- ---------- -----------------------------------------
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*
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*stop
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*-----------------------------------------------------------------------*/
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UInt16 StatusDRVR (CntrlParam *pb, DCtlPtr dce)
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{
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Int16 message; // The control call being made
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OSErr err; // Error code returned from routine
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globalsPtr g;
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UInt8 mmuMode;
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// DebugStr("\pStatusDRVR");
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g = (globalsPtr) *(dce->dCtlStorage);
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mmuMode = true32b;
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SwapMMUMode(&mmuMode);
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message = pb->csCode;
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err = statusErr; // Standard error code
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switch ( message ) {
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case cscGetMode:
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err = DoGetMode((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscGetEntries:
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err = DoGetEntries((VDSetEntryPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscGetPageCnt:
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err = DoGetPages((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscGetBaseAddr:
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err = DoGetBaseAddr((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscGetGray:
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err = DoGetGray((VDGrayPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscGetInterrupt:
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err = DoGetInterrupt((VDPgInfoPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscGetGamma:
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err = DoGetGamma((VDGamRecPtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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case cscGetDefaultMode:
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err = DoGetDefaultMode((VDDefModePtr) *((UInt32 *) &(pb->csParam[0])), dce);
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break;
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} // End switch
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pb->ioResult = err; // Pass result code on
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SwapMMUMode(&mmuMode);
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return(err);
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}
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/*-------------------------------------------------------------------------
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*
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* End of Module
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*
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*-----------------------------------------------------------------------*/
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