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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/vdd/pm.c')
| -rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/vdd/pm.c | 1050 |
1 files changed, 0 insertions, 1050 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 deleted file mode 100644 index 6688babd0d..0000000000 --- a/board/MAI/bios_emulator/scitech/src/pm/vdd/pm.c +++ /dev/null @@ -1,1050 +0,0 @@ -/**************************************************************************** -* -* 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; -} |
