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-/****************************************************************************
-*
-* 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: RTTarget-32
-*
-* 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#define WIN32_LEAN_AND_MEAN
-#define STRICT
-#include <windows.h>
-#include <mmsystem.h>
-#ifdef __BORLANDC__
-#pragma warn -par
-#endif
-
-/*--------------------------- Global variables ----------------------------*/
-
-static void (PMAPIP fatalErrorCleanup)(void) = NULL;
-
-/*----------------------------- Implementation ----------------------------*/
-
-void MTRR_init(void);
-
-/****************************************************************************
-REMARKS:
-Initialise the PM library.
-****************************************************************************/
-void PMAPI PM_init(void)
-{
- /* TODO: dO any special init code in here. */
- MTRR_init();
-}
-
-/****************************************************************************
-REMARKS:
-Return the operating system type identifier.
-****************************************************************************/
-long PMAPI PM_getOSType(void)
-{
- return _OS_RTTARGET;
-}
-
-/****************************************************************************
-REMARKS:
-Return the runtime type identifier.
-****************************************************************************/
-int PMAPI PM_getModeType(void)
-{
- return PM_386;
-}
-
-/****************************************************************************
-REMARKS:
-Add a file directory separator to the end of the filename.
-****************************************************************************/
-void PMAPI PM_backslash(
- char *s)
-{
- uint pos = strlen(s);
- if (s[pos-1] != '\\') {
- s[pos] = '\\';
- s[pos+1] = '\0';
- }
-}
-
-/****************************************************************************
-REMARKS:
-Add a user defined PM_fatalError cleanup function.
-****************************************************************************/
-void PMAPI PM_setFatalErrorCleanup(
- void (PMAPIP cleanup)(void))
-{
- fatalErrorCleanup = cleanup;
-}
-
-/****************************************************************************
-REMARKS:
-Report a fatal error condition and halt the program.
-****************************************************************************/
-void PMAPI PM_fatalError(
- const char *msg)
-{
- if (fatalErrorCleanup)
- fatalErrorCleanup();
- /* TODO: Display a fatal error message and exit! */
-/* MessageBox(NULL,msg,"Fatal Error!", MB_ICONEXCLAMATION); */
- exit(1);
-}
-
-/****************************************************************************
-REMARKS:
-Allocate the real mode VESA transfer buffer for communicating with the BIOS.
-****************************************************************************/
-void * PMAPI PM_getVESABuf(
- uint *len,
- uint *rseg,
- uint *roff)
-{
- /* No BIOS access for the RTTarget */
- return NULL;
-}
-
-/****************************************************************************
-REMARKS:
-Check if a key has been pressed.
-****************************************************************************/
-int PMAPI PM_kbhit(void)
-{
- /* TODO: Need to check if a key is waiting on the keyboard queue */
- return true;
-}
-
-/****************************************************************************
-REMARKS:
-Wait for and return the next keypress.
-****************************************************************************/
-int PMAPI PM_getch(void)
-{
- /* TODO: Need to obtain the next keypress, and block until one is hit */
- return 0xD;
-}
-
-/****************************************************************************
-REMARKS:
-Set the location of the OS console cursor.
-****************************************************************************/
-void PM_setOSCursorLocation(
- int x,
- int y)
-{
- /* Nothing to do for RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Set the width of the OS console.
-****************************************************************************/
-void PM_setOSScreenWidth(
- int width,
- int height)
-{
- /* Nothing to do for RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Set the real time clock handler (used for software stereo modes).
-****************************************************************************/
-ibool PMAPI PM_setRealTimeClockHandler(
- PM_intHandler ih,
- int frequency)
-{
- /* Not supported for RTTarget-32 */
- return false;
-}
-
-/****************************************************************************
-REMARKS:
-Set the real time clock frequency (for stereo modes).
-****************************************************************************/
-void PMAPI PM_setRealTimeClockFrequency(
- int frequency)
-{
- /* Not supported under RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Restore the original real time clock handler.
-****************************************************************************/
-void PMAPI PM_restoreRealTimeClockHandler(void)
-{
- /* Not supported under RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Return the current operating system path or working directory.
-****************************************************************************/
-char * PMAPI PM_getCurrentPath(
- char *path,
- int maxLen)
-{
- return getcwd(path,maxLen);
-}
-
-/****************************************************************************
-REMARKS:
-Return the drive letter for the boot drive.
-****************************************************************************/
-char PMAPI PM_getBootDrive(void)
-{
- return 'c';
-}
-
-/****************************************************************************
-REMARKS:
-Return the path to the VBE/AF driver files.
-****************************************************************************/
-const char * PMAPI PM_getVBEAFPath(void)
-{
- return "c:\\";
-}
-
-/****************************************************************************
-REMARKS:
-Return the path to the Nucleus driver files.
-****************************************************************************/
-const char * PMAPI PM_getNucleusPath(void)
-{
- /* TODO: Point this at the path when the Nucleus drivers will be found */
- return "c:\\nucleus";
-}
-
-/****************************************************************************
-REMARKS:
-Return the path to the Nucleus configuration files.
-****************************************************************************/
-const char * PMAPI PM_getNucleusConfigPath(void)
-{
- static char path[256];
- strcpy(path,PM_getNucleusPath());
- PM_backslash(path);
- strcat(path,"config");
- return path;
-}
-
-/****************************************************************************
-REMARKS:
-Return a unique identifier for the machine if possible.
-****************************************************************************/
-const char * PMAPI PM_getUniqueID(void)
-{
- return PM_getMachineName();
-}
-
-/****************************************************************************
-REMARKS:
-Get the name of the machine on the network.
-****************************************************************************/
-const char * PMAPI PM_getMachineName(void)
-{
- /* Not necessary for RTTarget-32 */
- return "Unknown";
-}
-
-/****************************************************************************
-REMARKS:
-Return a pointer to the real mode BIOS data area.
-****************************************************************************/
-void * PMAPI PM_getBIOSPointer(void)
-{
- /* Not used for RTTarget-32 */
- return NULL;
-}
-
-/****************************************************************************
-REMARKS:
-Return a pointer to 0xA0000 physical VGA graphics framebuffer.
-****************************************************************************/
-void * PMAPI PM_getA0000Pointer(void)
-{
- static void *bankPtr;
- if (!bankPtr)
- bankPtr = PM_mapPhysicalAddr(0xA0000,0xFFFF,true);
- return bankPtr;
-}
-
-/****************************************************************************
-REMARKS:
-Map a physical address to a linear address in the callers process.
-****************************************************************************/
-void * PMAPI PM_mapPhysicalAddr(
- ulong base,
- ulong limit,
- ibool isCached)
-{
- /* TODO: Map a physical memory address to a linear address */
- return NULL;
-}
-
-/****************************************************************************
-REMARKS:
-Free a physical address mapping allocated by PM_mapPhysicalAddr.
-****************************************************************************/
-void PMAPI PM_freePhysicalAddr(
- void *ptr,
- ulong limit)
-{
- /* TODO: Free the physical address mapping */
-}
-
-ulong PMAPI PM_getPhysicalAddr(void *p)
-{
- /* TODO: This function should find the physical address of a linear */
- /* address. */
- return 0xFFFFFFFFUL;
-}
-
-void PMAPI PM_sleep(ulong milliseconds)
-{
- Sleep(milliseconds);
-}
-
-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;
-}
-
-/****************************************************************************
-REMARKS:
-Allocate a block of (unnamed) shared memory.
-****************************************************************************/
-void * PMAPI PM_mallocShared(
- long size)
-{
- return PM_malloc(size);
-}
-
-/****************************************************************************
-REMARKS:
-Free a block of shared memory.
-****************************************************************************/
-void PMAPI PM_freeShared(
- void *ptr)
-{
- PM_free(ptr);
-}
-
-/****************************************************************************
-REMARKS:
-Map a linear memory address to the calling process address space. The
-address will have been allocated in another process using the
-PM_mapPhysicalAddr function.
-****************************************************************************/
-void * PMAPI PM_mapToProcess(
- void *base,
- ulong limit)
-{
- return base;
-}
-
-/****************************************************************************
-REMARKS:
-Map a real mode pointer to a protected mode pointer.
-****************************************************************************/
-void * PMAPI PM_mapRealPointer(
- uint r_seg,
- uint r_off)
-{
- /* Not used for RTTarget-32 */
- return NULL;
-}
-
-/****************************************************************************
-REMARKS:
-Allocate a block of real mode memory
-****************************************************************************/
-void * PMAPI PM_allocRealSeg(
- uint size,
- uint *r_seg,
- uint *r_off)
-{
- /* Not used for RTTarget-32 */
- return NULL;
-}
-
-/****************************************************************************
-REMARKS:
-Free a block of real mode memory.
-****************************************************************************/
-void PMAPI PM_freeRealSeg(
- void *mem)
-{
- /* Not used for RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Issue a real mode interrupt (parameters in DPMI compatible structure)
-****************************************************************************/
-void PMAPI DPMI_int86(
- int intno,
- DPMI_regs *regs)
-{
- /* Not used for RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Issue a real mode interrupt.
-****************************************************************************/
-int PMAPI PM_int86(
- int intno,
- RMREGS *in,
- RMREGS *out)
-{
- /* Not used for RTTarget-32 */
- return 0;
-}
-
-/****************************************************************************
-REMARKS:
-Issue a real mode interrupt.
-****************************************************************************/
-int PMAPI PM_int86x(
- int intno,
- RMREGS *in,
- RMREGS *out,
- RMSREGS *sregs)
-{
- /* Not used for RTTarget-32 */
- return 0;
-}
-
-/****************************************************************************
-REMARKS:
-Call a real mode far function.
-****************************************************************************/
-void PMAPI PM_callRealMode(
- uint seg,
- uint off,
- RMREGS *in,
- RMSREGS *sregs)
-{
- /* Not used for RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Return the amount of available memory.
-****************************************************************************/
-void PMAPI PM_availableMemory(
- ulong *physical,
- ulong *total)
-{
- /* TODO: Figure out how to determine the available memory. Not entirely */
- /* critical so returning 0 is OK. */
- *physical = *total = 0;
-}
-
-/****************************************************************************
-REMARKS:
-Allocate a block of locked, physical memory for DMA operations.
-****************************************************************************/
-void * PMAPI PM_allocLockedMem(
- uint size,
- ulong *physAddr,
- ibool contiguous,
- ibool below16M)
-{
- /* TODO: Allocate a block of locked, phsyically contigous memory for DMA */
- return 0;
-}
-
-/****************************************************************************
-REMARKS:
-Free a block of locked physical memory.
-****************************************************************************/
-void PMAPI PM_freeLockedMem(
- void *p,
- uint size,
-
- ibool contiguous)
-{
- /* TODO: Free a locked memory buffer */
-}
-
-/****************************************************************************
-REMARKS:
-Call the VBE/Core software interrupt to change display banks.
-****************************************************************************/
-void PMAPI PM_setBankA(
- int bank)
-{
- /* Not used for RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Call the VBE/Core software interrupt to change display banks.
-****************************************************************************/
-void PMAPI PM_setBankAB(
- int bank)
-{
- /* Not used for RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Call the VBE/Core software interrupt to change display start address.
-****************************************************************************/
-void PMAPI PM_setCRTStart(
- int x,
- int y,
- int waitVRT)
-{
- /* Not used for RTTarget-32 */
-}
-
-/****************************************************************************
-REMARKS:
-Execute the POST on the secondary BIOS for a controller.
-****************************************************************************/
-ibool PMAPI PM_doBIOSPOST(
- ushort axVal,
- ulong BIOSPhysAddr,
- void *mappedBIOS)
-{
- /* Not used for RTTarget-32 */
- return false;
-}
-
-PM_MODULE PMAPI PM_loadLibrary(
- const char *szDLLName)
-{
- /* TODO: Implement this to load shared libraries! */
- (void)szDLLName;
- return NULL;
-}
-
-void * PMAPI PM_getProcAddress(
- PM_MODULE hModule,
- const char *szProcName)
-{
- /* TODO: Implement this! */
- (void)hModule;
- (void)szProcName;
- return NULL;
-}
-
-void PMAPI PM_freeLibrary(
- PM_MODULE hModule)
-{
- /* TODO: Implement this! */
- (void)hModule;
-}
-
-/****************************************************************************
-REMARKS:
-Function to find the first file matching a search criteria in a directory.
-****************************************************************************/
-ulong 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(
- ulong 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(
- ulong 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)
-{
- if (drive == 3)
- return true;
- 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)
-{
- (void)drive;
- getcwd(dir,len);
-}
-
-/****************************************************************************
-REMARKS:
-Function to change the file attributes for a specific file.
-****************************************************************************/
-void PMAPI PM_setFileAttr(
- const char *filename,
- uint attrib)
-{
- /* TODO: Set the file attributes for a file */
- (void)filename;
- (void)attrib;
-}
-
-/****************************************************************************
-REMARKS:
-Function to create a directory.
-****************************************************************************/
-ibool PMAPI PM_mkdir(
- const char *filename)
-{
- return mkdir(filename) == 0;
-}
-
-/****************************************************************************
-REMARKS:
-Function to remove a directory.
-****************************************************************************/
-ibool PMAPI PM_rmdir(
- const char *filename)
-{
- return rmdir(filename) == 0;
-}
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