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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/vdd/pm.c')
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1 files changed, 1050 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/vdd/pm.c b/board/MAI/bios_emulator/scitech/src/pm/vdd/pm.c new file mode 100644 index 0000000000..32177f810d --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/vdd/pm.c @@ -0,0 +1,1050 @@ +/**************************************************************************** +* +* SciTech OS Portability Manager Library +* +* ======================================================================== +* +* The contents of this file are subject to the SciTech MGL Public +* License Version 1.0 (the "License"); you may not use this file +* except in compliance with the License. You may obtain a copy of +* the License at http://www.scitechsoft.com/mgl-license.txt +* +* Software distributed under the License is distributed on an +* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +* implied. See the License for the specific language governing +* rights and limitations under the License. +* +* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. +* +* The Initial Developer of the Original Code is SciTech Software, Inc. +* All Rights Reserved. +* +* ======================================================================== +* +* Language: ANSI C +* Environment: 32-bit OS/2 VDD +* +* Description: Implementation for the OS Portability Manager Library, which +* contains functions to implement OS specific services in a +* generic, cross platform API. Porting the OS Portability +* Manager library is the first step to porting any SciTech +* products to a new platform. +* +****************************************************************************/ + +#include "pmapi.h" +#include "drvlib/os/os.h" +#include "sdd/sddhelp.h" +#include "mtrr.h" + +#define TRACE(a) + +/*--------------------------- Global variables ----------------------------*/ + +#define MAX_MEMORY_SHARED 100 +#define MAX_MEMORY_MAPPINGS 100 + +// TODO: I think the global and linear members will be the same, but not sure yet. +typedef struct { + void *linear; + ulong global; + ulong length; + int npages; + } memshared; + +typedef struct { + ulong physical; + ulong linear; + ulong length; + int npages; + ibool isCached; + } mmapping; + +static int numMappings = 0; +static memshared shared[MAX_MEMORY_MAPPINGS] = {0}; +static mmapping maps[MAX_MEMORY_MAPPINGS]; +ibool _PM_haveBIOS = TRUE; +char _PM_cntPath[PM_MAX_PATH] = ""; /* there just isn't any */ +uchar *_PM_rmBufAddr = NULL; +ushort _VARAPI PM_savedDS = 0; /* why can't I use the underscore prefix? */ + +HVDHSEM hevFarCallRet = NULL; +HVDHSEM hevIRet = NULL; +HHOOK hhookUserReturnHook = NULL; +HHOOK hhookUserIRetHook = NULL; + +static void (PMAPIP fatalErrorCleanup)(void) = NULL; + +/*----------------------------- Implementation ----------------------------*/ + +/* Functions to read and write CMOS registers */ + +ulong PMAPI _PM_getPDB(void); +uchar PMAPI _PM_readCMOS(int index); +void PMAPI _PM_writeCMOS(int index,uchar value); + +VOID HOOKENTRY UserReturnHook(PVOID pRefData, PCRF pcrf); +VOID HOOKENTRY UserIRetHook(PVOID pRefData, PCRF pcrf); + +void PMAPI PM_init(void) +{ + MTRR_init(); + + // Initialize VDD-specific data + // Note: PM_init must be (obviously) called in VDM task context! + VDHCreateSem(&hevFarCallRet, VDH_EVENTSEM); + VDHCreateSem(&hevIRet, VDH_EVENTSEM); + hhookUserReturnHook = VDHAllocHook(VDH_RETURN_HOOK, (PFNARM)UserReturnHook, 0); + hhookUserIRetHook = VDHAllocHook(VDH_RETURN_HOOK, (PFNARM)UserIRetHook, 0); + + if ((hevIRet == NULL) || (hevFarCallRet == NULL) || + (hhookUserReturnHook == NULL) || (hhookUserIRetHook == NULL)) { + // something failed, we can't go on + // TODO: take some action here! + } +} + +/* Do some cleaning up */ +void PMAPI PM_exit(void) +{ + /* Note: Hooks allocated during or after VDM creation are deallocated automatically */ + if (hevIRet != NULL) + VDHDestroySem(hevIRet); + + if (hevFarCallRet != NULL) + VDHDestroySem(hevFarCallRet); +} + +ibool PMAPI PM_haveBIOSAccess(void) +{ return _PM_haveBIOS; } + +long PMAPI PM_getOSType(void) +{ return /*_OS_OS2VDD*/ _OS_OS2; } //FIX!! + +int PMAPI PM_getModeType(void) +{ return PM_386; } + +void PMAPI PM_backslash(char *s) +{ + uint pos = strlen(s); + if (s[pos-1] != '\\') { + s[pos] = '\\'; + s[pos+1] = '\0'; + } +} + +void PMAPI PM_setFatalErrorCleanup( + void (PMAPIP cleanup)(void)) +{ + fatalErrorCleanup = cleanup; +} + +void PMAPI PM_fatalError(const char *msg) +{ + if (fatalErrorCleanup) + fatalErrorCleanup(); +// Fatal_Error_Handler(msg,0); TODO: implement somehow! +} + +/**************************************************************************** +PARAMETERS: +len - Place to store the length of the buffer +rseg - Place to store the real mode segment of the buffer +roff - Place to store the real mode offset of the buffer + +REMARKS: +This function returns the address and length of the global VESA transfer +buffer. +****************************************************************************/ +void * PMAPI PM_getVESABuf( + uint *len, + uint *rseg, + uint *roff) +{ + if (_PM_rmBufAddr) { + *len = 0; //VESA_BUF_SIZE; + *rseg = (ulong)(_PM_rmBufAddr) >> 4; + *roff = (ulong)(_PM_rmBufAddr) & 0xF; + return _PM_rmBufAddr; + } + return NULL; +} + +int PMAPI PM_int386(int intno, PMREGS *in, PMREGS *out) +{ + /* Unused in VDDs */ + return 0; +} + +char * PMAPI PM_getCurrentPath(char *path,int maxLen) +{ + strncpy(path, _PM_cntPath, maxLen); + path[maxLen - 1] = 0; + return path; +} + +char PMAPI PM_getBootDrive(void) +{ + ulong boot = 3; + boot = VDHQuerySysValue(0, VDHGSV_BOOTDRV); + return (char)('a' + boot - 1); +} + +const char * PMAPI PM_getVBEAFPath(void) +{ + static char path[CCHMAXPATH]; + strcpy(path,"x:\\"); + path[0] = PM_getBootDrive(); + return path; +} + +const char * PMAPI PM_getNucleusPath(void) +{ + static char path[CCHMAXPATH]; + strcpy(path,"x:\\os2\\drivers"); + path[0] = PM_getBootDrive(); + PM_backslash(path); + strcat(path,"nucleus"); + return path; +} + +const char * PMAPI PM_getNucleusConfigPath(void) +{ + static char path[256]; + strcpy(path,PM_getNucleusPath()); + PM_backslash(path); + strcat(path,"config"); + return path; +} + +const char * PMAPI PM_getUniqueID(void) +{ return PM_getMachineName(); } + +const char * PMAPI PM_getMachineName(void) +{ + return "Unknown"; +} + +int PMAPI PM_kbhit(void) +{ return 1; } + +int PMAPI PM_getch(void) +{ return 0; } + +PM_HWND PMAPI PM_openConsole(PM_HWND hwndUser,int device,int xRes,int yRes,int bpp,ibool fullScreen) +{ + /* Unused in VDDs */ + return NULL; +} + +int PMAPI PM_getConsoleStateSize(void) +{ + /* Unused in VDDs */ + return 1; +} + +void PMAPI PM_saveConsoleState(void *stateBuf,PM_HWND hwndConsole) +{ + /* Unused in VDDs */ +} + +void PMAPI PM_setSuspendAppCallback(int (_ASMAPIP saveState)(int flags)) +{ + /* Unused in VDDs */ +} + +void PMAPI PM_restoreConsoleState(const void *stateBuf,PM_HWND hwndConsole) +{ + /* Unused in VDDs */ +} + +void PMAPI PM_closeConsole(PM_HWND hwndConsole) +{ + /* Unused in VDDs */ +} + +void PMAPI PM_setOSCursorLocation(int x,int y) +{ + uchar *_biosPtr = PM_getBIOSPointer(); + PM_setByte(_biosPtr+0x50,x); + PM_setByte(_biosPtr+0x51,y); +} + +void PMAPI PM_setOSScreenWidth(int width,int height) +{ + uchar *_biosPtr = PM_getBIOSPointer(); + PM_setByte(_biosPtr+0x4A,width); + PM_setByte(_biosPtr+0x84,height-1); +} + +/**************************************************************************** +REMARKS: +Allocate a block of shared memory. For OS/2 VDD we allocate shared memory +as locked, global memory that is accessible from any memory context +(including interrupt time context), which allows us to load our important +data structure and code such that we can access it directly from a ring +0 interrupt context. +****************************************************************************/ +void * PMAPI PM_mallocShared(long size) +{ + ULONG nPages = (size + 0xFFF) >> 12; + int i; + + /* First find a free slot in our shared memory table */ + for (i = 0; i < MAX_MEMORY_SHARED; i++) { + if (shared[i].linear == 0) + break; + } + if (i < MAX_MEMORY_SHARED) { + shared[i].linear = VDHAllocPages(NULL, nPages, VDHAP_SYSTEM | VDHAP_FIXED); + shared[i].npages = nPages; + shared[i].global = (ULONG)shared[i].linear; + return (void*)shared[i].global; + } + return NULL; +} + +/**************************************************************************** +REMARKS: +Free a block of shared memory +****************************************************************************/ +void PMAPI PM_freeShared(void *p) +{ + int i; + + /* Find a shared memory block in our table and free it */ + for (i = 0; i < MAX_MEMORY_SHARED; i++) { + if (shared[i].global == (ulong)p) { + VDHFreePages(shared[i].linear); + shared[i].linear = 0; + break; + } + } +} + +void * PMAPI PM_mapToProcess(void *base,ulong limit) +{ return (void*)base; } + +ibool PMAPI PM_doBIOSPOST( + ushort axVal, + ulong BIOSPhysAddr, + void *mappedBIOS, + ulong BIOSLen) +{ + // TODO: Figure out how to do this + return false; +} + +void * PMAPI PM_getBIOSPointer(void) +{ return (void*)0x400; } + +void * PMAPI PM_getA0000Pointer(void) +{ return PM_mapPhysicalAddr(0xA0000,0xFFFF,true); } + +/**************************************************************************** +PARAMETERS: +base - Physical base address of the memory to maps in +limit - Limit of physical memory to region to maps in + +RETURNS: +Linear address of the newly mapped memory. + +REMARKS: +Maps a physical memory range to a linear memory range. +****************************************************************************/ +ulong MapPhysicalToLinear( + ulong base, + ulong limit, + int *npages) +{ + ulong linear,length = limit+1; + int i,ppage,flags; +#if 0 + ppage = base >> 12; + *npages = (length + (base & 0xFFF) + 4095) >> 12; + flags = PR_FIXED | PR_STATIC; + if (base == 0xA0000) { + /* We require the linear address to be aligned to a 64Kb boundary + * for mapping the banked framebuffer (so we can do efficient + * carry checking for bank changes in the assembler code). The only + * way to ensure this is to force the linear address to be aligned + * to a 4Mb boundary. + */ + flags |= PR_4MEG; + } + if ((linear = (ulong)PageReserve(PR_SYSTEM,*npages,flags)) == (ulong)-1) + return 0; + if (!PageCommitPhys(linear >> 12,*npages,ppage,PC_INCR | PC_USER | PC_WRITEABLE)) + return 0; +#endif + return linear + (base & 0xFFF); +} + +/**************************************************************************** +PARAMETERS: +base - Physical base address of the memory to map in +limit - Limit of physical memory to region to map in +isCached - True if the memory should be cached, false if not + +RETURNS: +Linear address of the newly mapped memory. + +REMARKS: +This function maps physical memory to linear memory, which can then be used +to create a selector or used directly from 32-bit protected mode programs. +This is better than DPMI 0x800, since it allows you to maps physical +memory below 1Mb, which gets this memory out of the way of the Windows VxD's +sticky paws. + +NOTE: If the memory is not expected to be cached, this function will + directly re-program the PCD (Page Cache Disable) bit in the + page tables. There does not appear to be a mechanism in the VMM + to control this bit via the regular interface. +****************************************************************************/ +void * PMAPI PM_mapPhysicalAddr( + ulong base, + ulong limit, + ibool isCached) +{ + ulong linear,length = limit+1; + int i,npages; + ulong PDB,*pPDB; + + /* Search table of existing mappings to see if we have already mapped + * a region of memory that will serve this purpose. + */ + for (i = 0; i < numMappings; i++) { + if (maps[i].physical == base && maps[i].length == length && maps[i].isCached == isCached) + return (void*)maps[i].linear; + } + if (numMappings == MAX_MEMORY_MAPPINGS) + return NULL; + + /* We did not find any previously mapped memory region, so map it in. + * Note that we do not use MapPhysToLinear, since this function appears + * to have problems mapping memory in the 1Mb physical address space. + * Hence we use PageReserve and PageCommitPhys. + */ + if ((linear = MapPhysicalToLinear(base,limit,&npages)) == 0) + return NULL; + maps[numMappings].physical = base; + maps[numMappings].length = length; + maps[numMappings].linear = linear; + maps[numMappings].npages = npages; + maps[numMappings].isCached = isCached; + numMappings++; + +#if 0 + /* Finally disable caching where necessary */ + if (!isCached && (PDB = _PM_getPDB()) != 0) { + int startPDB,endPDB,iPDB,startPage,endPage,start,end,iPage; + ulong pageTable,*pPageTable; + + if (PDB >= 0x100000) + pPDB = (ulong*)MapPhysicalToLinear(PDB,0xFFF,&npages); + else + pPDB = (ulong*)PDB; + if (pPDB) { + startPDB = (linear >> 22) & 0x3FF; + startPage = (linear >> 12) & 0x3FF; + endPDB = ((linear+limit) >> 22) & 0x3FF; + endPage = ((linear+limit) >> 12) & 0x3FF; + for (iPDB = startPDB; iPDB <= endPDB; iPDB++) { + pageTable = pPDB[iPDB] & ~0xFFF; + if (pageTable >= 0x100000) + pPageTable = (ulong*)MapPhysicalToLinear(pageTable,0xFFF,&npages); + else + pPageTable = (ulong*)pageTable; + start = (iPDB == startPDB) ? startPage : 0; + end = (iPDB == endPDB) ? endPage : 0x3FF; + for (iPage = start; iPage <= end; iPage++) + pPageTable[iPage] |= 0x10; + PageFree((ulong)pPageTable,PR_STATIC); + } + PageFree((ulong)pPDB,PR_STATIC); + } + } +#endif + return (void*)linear; +} + +void PMAPI PM_freePhysicalAddr(void *ptr,ulong limit) +{ + /* We never free the mappings */ +} + +void PMAPI PM_sleep(ulong milliseconds) +{ + /* We never sleep in a VDD */ +} + +int PMAPI PM_getCOMPort(int port) +{ + // TODO: Re-code this to determine real values using the Plug and Play + // manager for the OS. + switch (port) { + case 0: return 0x3F8; + case 1: return 0x2F8; + } + return 0; +} + +int PMAPI PM_getLPTPort(int port) +{ + // TODO: Re-code this to determine real values using the Plug and Play + // manager for the OS. + switch (port) { + case 0: return 0x3BC; + case 1: return 0x378; + case 2: return 0x278; + } + return 0; +} + +ulong PMAPI PM_getPhysicalAddr(void *p) +{ + // TODO: This function should find the physical address of a linear + // address. + return 0xFFFFFFFFUL; +} + +void PMAPI _PM_freeMemoryMappings(void) +{ + int i; +// for (i = 0; i < numMappings; i++) +// PageFree(maps[i].linear,PR_STATIC); +} + +void * PMAPI PM_mapRealPointer(uint r_seg,uint r_off) +{ return (void*)MK_PHYS(r_seg,r_off); } + +void * PMAPI PM_allocRealSeg(uint size,uint *r_seg,uint *r_off) +{ return NULL; } + +void PMAPI PM_freeRealSeg(void *mem) +{ } + +void PMAPI DPMI_int86(int intno, DPMI_regs *regs) +{ + /* Unsed in VDDs */ +} + +/**************************************************************************** +REMARKS: +Load the V86 registers in the client state, and save the original state +before loading the registers. +****************************************************************************/ +static void LoadV86Registers( + PCRF saveRegs, + RMREGS *in, + RMSREGS *sregs) +{ + PCRF pcrf; // current client register frame + + // get pointer to registers + pcrf = (PCRF)VDHQuerySysValue(CURRENT_VDM, VDHLSV_PCRF); + + // Note: We could do VDHPushRegs instead but this should be safer as it + // doesn't rely on the VDM session having enough free stack space. + *saveRegs = *pcrf; // save all registers + + pcrf->crf_eax = in->e.eax; // load new values + pcrf->crf_ebx = in->e.ebx; + pcrf->crf_ecx = in->e.ecx; + pcrf->crf_edx = in->e.edx; + pcrf->crf_esi = in->e.esi; + pcrf->crf_edi = in->e.edi; + pcrf->crf_es = sregs->es; + pcrf->crf_ds = sregs->ds; + +} + +/**************************************************************************** +REMARKS: +Read the V86 registers from the client state and restore the original state. +****************************************************************************/ +static void ReadV86Registers( + PCRF saveRegs, + RMREGS *out, + RMSREGS *sregs) +{ + PCRF pcrf; // current client register frame + + // get pointer to registers + pcrf = (PCRF)VDHQuerySysValue(CURRENT_VDM, VDHLSV_PCRF); + + // read new register values + out->e.eax = pcrf->crf_eax; + out->e.ebx = pcrf->crf_ebx; + out->e.ecx = pcrf->crf_ecx; + out->e.edx = pcrf->crf_edx; + out->e.esi = pcrf->crf_esi; + out->e.edi = pcrf->crf_edi; + sregs->es = pcrf->crf_es; + sregs->ds = pcrf->crf_ds; + + // restore original client registers + *pcrf = *saveRegs; +} + +/**************************************************************************** +REMARKS: Used for far calls into V86 code +****************************************************************************/ +VOID HOOKENTRY UserReturnHook( + PVOID pRefData, + PCRF pcrf ) +{ + VDHPostEventSem(hevFarCallRet); +} + +/**************************************************************************** +REMARKS: Used for calling BIOS interrupts +****************************************************************************/ +VOID HOOKENTRY UserIRetHook( + PVOID pRefData, + PCRF pcrf ) +{ + VDHPostEventSem(hevIRet); +} + +/**************************************************************************** +REMARKS: +Call a V86 real mode function with the specified register values +loaded before the call. The call returns with a far ret. +Must be called from within a DOS session context! +****************************************************************************/ +void PMAPI PM_callRealMode( + uint seg, + uint off, + RMREGS *regs, + RMSREGS *sregs) +{ + CRF saveRegs; + FPFN fnAddress; + ULONG rc; + + TRACE("SDDHELP: Entering PM_callRealMode()\n"); + LoadV86Registers(SSToDS(&saveRegs),regs,sregs); + + // set up return hook for call + rc = VDHArmReturnHook(hhookUserReturnHook, VDHARH_CSEIP_HOOK); + + VDHResetEventSem(hevFarCallRet); + + // the address is a 16:32 pointer + OFFSETOF32(fnAddress) = off; + SEGMENTOF32(fnAddress) = seg; + rc = VDHPushFarCall(fnAddress); + VDHYield(0); + + // wait until the V86 call returns - our return hook posts the semaphore + rc = VDHWaitEventSem(hevFarCallRet, SEM_INDEFINITE_WAIT); + + ReadV86Registers(SSToDS(&saveRegs),regs,sregs); + TRACE("SDDHELP: Exiting PM_callRealMode()\n"); +} + +/**************************************************************************** +REMARKS: +Issue a V86 real mode interrupt with the specified register values +loaded before the interrupt. +Must be called from within a DOS session context! +****************************************************************************/ +int PMAPI PM_int86( + int intno, + RMREGS *in, + RMREGS *out) +{ + RMSREGS sregs = {0}; + CRF saveRegs; + ushort oldDisable; + ULONG rc; + + memset(SSToDS(&sregs), 0, sizeof(sregs)); + +#if 0 // do we need this?? + /* Disable pass-up to our VDD handler so we directly call BIOS */ + TRACE("SDDHELP: Entering PM_int86()\n"); + if (disableTSRFlag) { + oldDisable = *disableTSRFlag; + *disableTSRFlag = 0; + } +#endif + + LoadV86Registers(SSToDS(&saveRegs), in, SSToDS(&sregs)); + + VDHResetEventSem(hevIRet); + rc = VDHPushInt(intno); + + // set up return hook for interrupt + rc = VDHArmReturnHook(hhookUserIRetHook, VDHARH_NORMAL_IRET); + + VDHYield(0); + + // wait until the V86 IRETs - our return hook posts the semaphore + rc = VDHWaitEventSem(hevIRet, 5000); //SEM_INDEFINITE_WAIT); + + ReadV86Registers(SSToDS(&saveRegs), out, SSToDS(&sregs)); + +#if 0 + /* Re-enable pass-up to our VDD handler if previously enabled */ + if (disableTSRFlag) + *disableTSRFlag = oldDisable; +#endif + + TRACE("SDDHELP: Exiting PM_int86()\n"); + return out->x.ax; + +} + +/**************************************************************************** +REMARKS: +Issue a V86 real mode interrupt with the specified register values +loaded before the interrupt. +****************************************************************************/ +int PMAPI PM_int86x( + int intno, + RMREGS *in, + RMREGS *out, + RMSREGS *sregs) +{ + CRF saveRegs; + ushort oldDisable; + ULONG rc; + +#if 0 + /* Disable pass-up to our VxD handler so we directly call BIOS */ + TRACE("SDDHELP: Entering PM_int86x()\n"); + if (disableTSRFlag) { + oldDisable = *disableTSRFlag; + *disableTSRFlag = 0; + } +#endif + LoadV86Registers(SSToDS(&saveRegs), in, sregs); + + VDHResetEventSem(hevIRet); + rc = VDHPushInt(intno); + + // set up return hook for interrupt + rc = VDHArmReturnHook(hhookUserIRetHook, VDHARH_NORMAL_IRET); + + VDHYield(0); + + // wait until the V86 IRETs - our return hook posts the semaphore + rc = VDHWaitEventSem(hevIRet, 5000); //SEM_INDEFINITE_WAIT); + + ReadV86Registers(SSToDS(&saveRegs), out, sregs); + +#if 0 + /* Re-enable pass-up to our VxD handler if previously enabled */ + if (disableTSRFlag) + *disableTSRFlag = oldDisable; +#endif + + TRACE("SDDHELP: Exiting PM_int86x()\n"); + return out->x.ax; +} + +void PMAPI PM_availableMemory(ulong *physical,ulong *total) +{ *physical = *total = 0; } + +/**************************************************************************** +REMARKS: +Allocates a block of locked physical memory. +****************************************************************************/ +void * PMAPI PM_allocLockedMem( + uint size, + ulong *physAddr, + ibool contiguous, + ibool below16M) +{ + ULONG flags = VDHAP_SYSTEM; + ULONG nPages = (size + 0xFFF) >> 12; + + flags |= (physAddr != NULL) ? VDHAP_PHYSICAL : VDHAP_FIXED; + + return VDHAllocPages(physAddr, nPages, VDHAP_SYSTEM | VDHAP_PHYSICAL); +} + +/**************************************************************************** +REMARKS: +Frees a block of locked physical memory. +****************************************************************************/ +void PMAPI PM_freeLockedMem( + void *p, + uint size, + ibool contiguous) +{ + if (p) + VDHFreePages((PVOID)p); +} + +/**************************************************************************** +REMARKS: +Lock linear memory so it won't be paged. +****************************************************************************/ +int PMAPI PM_lockDataPages(void *p,uint len,PM_lockHandle *lh) +{ + ULONG lockHandle; + + // TODO: the lock handle is essential for the unlock operation!! + lockHandle = VDHLockMem(p, len, 0, (PVOID)VDHLM_NO_ADDR, NULL); + + if (lockHandle != NULL) + return 0; + else + return 1; +} + +/**************************************************************************** +REMARKS: +Unlock linear memory so it won't be paged. +****************************************************************************/ +int PMAPI PM_unlockDataPages(void *p,uint len,PM_lockHandle *lh) +{ + // TODO: implement - use a table of lock handles? + // VDHUnlockPages(lockHandle); + return 0; +} + +/**************************************************************************** +REMARKS: +Lock linear memory so it won't be paged. +****************************************************************************/ +int PMAPI PM_lockCodePages(void (*p)(),uint len,PM_lockHandle *lh) +{ + return PM_lockDataPages((void*)p,len,lh); +} + +/**************************************************************************** +REMARKS: +Unlock linear memory so it won't be paged. +****************************************************************************/ +int PMAPI PM_unlockCodePages(void (*p)(),uint len,PM_lockHandle *lh) +{ + return PM_unlockDataPages((void*)p,len,lh); +} + +/**************************************************************************** +REMARKS: +OS specific shared libraries not supported inside a VDD +****************************************************************************/ +PM_MODULE PMAPI PM_loadLibrary( + const char *szDLLName) +{ + (void)szDLLName; + return NULL; +} + +/**************************************************************************** +REMARKS: +OS specific shared libraries not supported inside a VDD +****************************************************************************/ +void * PMAPI PM_getProcAddress( + PM_MODULE hModule, + const char *szProcName) +{ + (void)hModule; + (void)szProcName; + return NULL; +} + +/**************************************************************************** +REMARKS: +OS specific shared libraries not supported inside a VDD +****************************************************************************/ +void PMAPI PM_freeLibrary( + PM_MODULE hModule) +{ + (void)hModule; +} + +/**************************************************************************** +REMARKS: +Function to find the first file matching a search criteria in a directory. +****************************************************************************/ +void *PMAPI PM_findFirstFile( + const char *filename, + PM_findData *findData) +{ + // TODO: This function should start a directory enumeration search + // given the filename (with wildcards). The data should be + // converted and returned in the findData standard form. + (void)filename; + (void)findData; + return PM_FILE_INVALID; +} + +/**************************************************************************** +REMARKS: +Function to find the next file matching a search criteria in a directory. +****************************************************************************/ +ibool PMAPI PM_findNextFile( + void *handle, + PM_findData *findData) +{ + // TODO: This function should find the next file in directory enumeration + // search given the search criteria defined in the call to + // PM_findFirstFile. The data should be converted and returned + // in the findData standard form. + (void)handle; + (void)findData; + return false; +} + +/**************************************************************************** +REMARKS: +Function to close the find process +****************************************************************************/ +void PMAPI PM_findClose( + void *handle) +{ + // TODO: This function should close the find process. This may do + // nothing for some OS'es. + (void)handle; +} + +/**************************************************************************** +REMARKS: +Function to determine if a drive is a valid drive or not. Under Unix this +function will return false for anything except a value of 3 (considered +the root drive, and equivalent to C: for non-Unix systems). The drive +numbering is: + + 1 - Drive A: + 2 - Drive B: + 3 - Drive C: + etc + +****************************************************************************/ +ibool PMAPI PM_driveValid( + char drive) +{ + // Not applicable in a VDD + (void)drive; + return false; +} + +/**************************************************************************** +REMARKS: +Function to get the current working directory for the specififed drive. +Under Unix this will always return the current working directory regardless +of what the value of 'drive' is. +****************************************************************************/ +void PMAPI PM_getdcwd( + int drive, + char *dir, + int len) +{ + // Not applicable in a VDD + (void)drive; + (void)dir; + (void)len; +} + +/**************************************************************************** +PARAMETERS: +base - The starting physical base address of the region +size - The size in bytes of the region +type - Type to place into the MTRR register + +RETURNS: +Error code describing the result. + +REMARKS: +Function to enable write combining for the specified region of memory. +****************************************************************************/ +int PMAPI PM_enableWriteCombine( + ulong base, + ulong size, + uint type) +{ + return MTRR_enableWriteCombine(base,size,type); +} + +/**************************************************************************** +REMARKS: +Function to change the file attributes for a specific file. +****************************************************************************/ +void PMAPI PM_setFileAttr( + const char *filename, + uint attrib) +{ + // TODO: Implement this ? + (void)filename; + (void)attrib; + PM_fatalError("PM_setFileAttr not implemented!"); +} + +/**************************************************************************** +REMARKS: +Function to get the file attributes for a specific file. +****************************************************************************/ +uint PMAPI PM_getFileAttr( + const char *filename) +{ + // TODO: Implement this ? + (void)filename; + PM_fatalError("PM_getFileAttr not implemented!"); + return 0; +} + +/**************************************************************************** +REMARKS: +Function to create a directory. +****************************************************************************/ +ibool PMAPI PM_mkdir( + const char *filename) +{ + // TODO: Implement this ? + (void)filename; + PM_fatalError("PM_mkdir not implemented!"); + return false; +} + +/**************************************************************************** +REMARKS: +Function to remove a directory. +****************************************************************************/ +ibool PMAPI PM_rmdir( + const char *filename) +{ + // TODO: Implement this ? + (void)filename; + PM_fatalError("PM_rmdir not implemented!"); + return false; +} + +/**************************************************************************** +REMARKS: +Function to get the file time and date for a specific file. +****************************************************************************/ +ibool PMAPI PM_getFileTime( + const char *filename, + ibool gmTime, + PM_time *time) +{ + // TODO: Implement this ? + (void)filename; + (void)gmTime; + (void)time; + PM_fatalError("PM_getFileTime not implemented!"); + return false; +} + +/**************************************************************************** +REMARKS: +Function to set the file time and date for a specific file. +****************************************************************************/ +ibool PMAPI PM_setFileTime( + const char *filename, + ibool gmTime, + PM_time *time) +{ + // TODO: Implement this ? + (void)filename; + (void)gmTime; + (void)time; + PM_fatalError("PM_setFileTime not implemented!"); + return false; +} |
