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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/stub/pm.c')
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diff --git a/board/MAI/bios_emulator/scitech/src/pm/stub/pm.c b/board/MAI/bios_emulator/scitech/src/pm/stub/pm.c new file mode 100644 index 0000000000..51656b05e3 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/stub/pm.c @@ -0,0 +1,980 @@ +/**************************************************************************** +* +* 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: *** TODO: ADD YOUR OS ENVIRONMENT NAME HERE *** +* +* 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> + +// TODO: Include any OS specific headers here! + +/*--------------------------- Global variables ----------------------------*/ + +// TODO: If you support access to the BIOS, the following VESABuf globals +// keep track of a single VESA transfer buffer. If you don't support +// access to the BIOS, remove these variables. + +static uint VESABuf_len = 1024; /* Length of the VESABuf buffer */ +static void *VESABuf_ptr = NULL; /* Near pointer to VESABuf */ +static uint VESABuf_rseg; /* Real mode segment of VESABuf */ +static uint VESABuf_roff; /* Real mode offset of VESABuf */ + +static void (PMAPIP fatalErrorCleanup)(void) = NULL; + +/*----------------------------- Implementation ----------------------------*/ + +/**************************************************************************** +REMARKS: +Initialise the PM library. +****************************************************************************/ +void PMAPI PM_init(void) +{ + // TODO: Do any initialisation in here. This includes getting IOPL + // access for the process calling PM_init. This will get called + // more than once. + + // TODO: If you support the supplied MTRR register stuff (you need to + // be at ring 0 for this!), you should initialise it in here. + +/* MTRR_init(); */ +} + +/**************************************************************************** +REMARKS: +Return the operating system type identifier. +****************************************************************************/ +long PMAPI PM_getOSType(void) +{ + // TODO: Change this to return the define for your OS from drvlib/os.h + return _OS_MYOS; +} + +/**************************************************************************** +REMARKS: +Return the runtime type identifier (always PM_386 for protected mode) +****************************************************************************/ +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) +{ + // TODO: If you are running in a GUI environment without a console, + // this needs to be changed to bring up a fatal error message + // box and terminate the program. + if (fatalErrorCleanup) + fatalErrorCleanup(); + fprintf(stderr,"%s\n", msg); + exit(1); +} + +/**************************************************************************** +REMARKS: +Exit handler to kill the VESA transfer buffer. +****************************************************************************/ +static void ExitVBEBuf(void) +{ + // TODO: If you do not have BIOS access, remove this function. + if (VESABuf_ptr) + PM_freeRealSeg(VESABuf_ptr); + VESABuf_ptr = 0; +} + +/**************************************************************************** +REMARKS: +Allocate the real mode VESA transfer buffer for communicating with the BIOS. +****************************************************************************/ +void * PMAPI PM_getVESABuf( + uint *len, + uint *rseg, + uint *roff) +{ + // TODO: If you do not have BIOS access, simply delete the guts of + // this function and return NULL. + if (!VESABuf_ptr) { + /* Allocate a global buffer for communicating with the VESA VBE */ + if ((VESABuf_ptr = PM_allocRealSeg(VESABuf_len, &VESABuf_rseg, &VESABuf_roff)) == NULL) + return NULL; + atexit(ExitVBEBuf); + } + *len = VESABuf_len; + *rseg = VESABuf_rseg; + *roff = VESABuf_roff; + return VESABuf_ptr; +} + +/**************************************************************************** +REMARKS: +Check if a key has been pressed. +****************************************************************************/ +int PMAPI PM_kbhit(void) +{ + // TODO: This function checks if a key is available to be read. This + // should be implemented, but is mostly used by the test programs + // these days. + return true; +} + +/**************************************************************************** +REMARKS: +Wait for and return the next keypress. +****************************************************************************/ +int PMAPI PM_getch(void) +{ + // TODO: This returns the ASCII code of the key pressed. This + // should be implemented, but is mostly used by the test programs + // these days. + return 0xD; +} + +/**************************************************************************** +REMARKS: +Open a fullscreen console mode for output. +****************************************************************************/ +int PMAPI PM_openConsole(void) +{ + // TODO: Opens up a fullscreen console for graphics output. If your + // console does not have graphics/text modes, this can be left + // empty. The main purpose of this is to disable console switching + // when in graphics modes if you can switch away from fullscreen + // consoles (if you want to allow switching, this can be done + // elsewhere with a full save/restore state of the graphics mode). + return 0; +} + +/**************************************************************************** +REMARKS: +Return the size of the state buffer used to save the console state. +****************************************************************************/ +int PMAPI PM_getConsoleStateSize(void) +{ + // TODO: Returns the size of the console state buffer used to save the + // state of the console before going into graphics mode. This is + // used to restore the console back to normal when we are done. + return 1; +} + +/**************************************************************************** +REMARKS: +Save the state of the console into the state buffer. +****************************************************************************/ +void PMAPI PM_saveConsoleState( + void *stateBuf, + int console_id) +{ + // TODO: Saves the state of the console into the state buffer. This is + // used to restore the console back to normal when we are done. + // We will always restore 80x25 text mode after being in graphics + // mode, so if restoring text mode is all you need to do this can + // be left empty. +} + +/**************************************************************************** +REMARKS: +Restore the state of the console from the state buffer. +****************************************************************************/ +void PMAPI PM_restoreConsoleState( + const void *stateBuf, + int console_id) +{ + // TODO: Restore the state of the console from the state buffer. This is + // used to restore the console back to normal when we are done. + // We will always restore 80x25 text mode after being in graphics + // mode, so if restoring text mode is all you need to do this can + // be left empty. +} + +/**************************************************************************** +REMARKS: +Close the console and return to non-fullscreen console mode. +****************************************************************************/ +void PMAPI PM_closeConsole( + int console_id) +{ + // TODO: Close the console when we are done, going back to text mode. +} + +/**************************************************************************** +REMARKS: +Set the location of the OS console cursor. +****************************************************************************/ +void PM_setOSCursorLocation( + int x, + int y) +{ + // TODO: Set the OS console cursor location to the new value. This is + // generally used for new OS ports (used mostly for DOS). +} + +/**************************************************************************** +REMARKS: +Set the width of the OS console. +****************************************************************************/ +void PM_setOSScreenWidth( + int width, + int height) +{ + // TODO: Set the OS console screen width. This is generally unused for + // new OS ports. +} + +/**************************************************************************** +REMARKS: +Set the real time clock handler (used for software stereo modes). +****************************************************************************/ +ibool PMAPI PM_setRealTimeClockHandler( + PM_intHandler ih, + int frequency) +{ + // TODO: Install a real time clock interrupt handler. Normally this + // will not be supported from most OS'es in user land, so an + // alternative mechanism is needed to enable software stereo. + // Hence leave this unimplemented unless you have a high priority + // mechanism to call the 32-bit callback when the real time clock + // interrupt fires. + return false; +} + +/**************************************************************************** +REMARKS: +Set the real time clock frequency (for stereo modes). +****************************************************************************/ +void PMAPI PM_setRealTimeClockFrequency( + int frequency) +{ + // TODO: Set the real time clock interrupt frequency. Used for stereo + // LC shutter glasses when doing software stereo. Usually sets + // the frequency to around 2048 Hz. +} + +/**************************************************************************** +REMARKS: +Restore the original real time clock handler. +****************************************************************************/ +void PMAPI PM_restoreRealTimeClockHandler(void) +{ + // TODO: Restores the real time clock handler. +} + +/**************************************************************************** +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) +{ + // TODO: Return the boot drive letter for the OS. Normally this is 'c' + // for DOS based OS'es and '/' for Unices. + return '/'; +} + +/**************************************************************************** +REMARKS: +Return the path to the VBE/AF driver files (legacy and not used). +****************************************************************************/ +const char * PMAPI PM_getVBEAFPath(void) +{ + return PM_getNucleusConfigPath(); +} + +/**************************************************************************** +REMARKS: +Return the path to the Nucleus driver files. +****************************************************************************/ +const char * PMAPI PM_getNucleusPath(void) +{ + // TODO: Change this to the default path to Nucleus driver files. The + // following is the default for Unices. + char *env = getenv("NUCLEUS_PATH"); + return env ? env : "/usr/lib/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) +{ + // TODO: Return a unique ID for the machine. If a unique ID is not + // available, return the machine name. + static char buf[128]; + gethostname(buf, 128); + return buf; +} + +/**************************************************************************** +REMARKS: +Get the name of the machine on the network. +****************************************************************************/ +const char * PMAPI PM_getMachineName(void) +{ + // TODO: Return the network machine name for the machine. + static char buf[128]; + gethostname(buf, 128); + return buf; +} + +/**************************************************************************** +REMARKS: +Return a pointer to the real mode BIOS data area. +****************************************************************************/ +void * PMAPI PM_getBIOSPointer(void) +{ + // TODO: This returns a pointer to the real mode BIOS data area. If you + // do not support BIOS access, you can simply return NULL here. + if (!zeroPtr) + zeroPtr = PM_mapPhysicalAddr(0,0xFFFFF,true); + return (void*)(zeroPtr + 0x400); +} + +/**************************************************************************** +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: This function maps a physical memory address to a linear + // address in the address space of the calling process. + + // NOTE: This function *must* be able to handle any phsyical base + // address, and hence you will have to handle rounding of + // the physical base address to a page boundary (ie: 4Kb on + // x86 CPU's) to be able to properly map in the memory + // region. + + // NOTE: If possible the isCached bit should be used to ensure that + // the PCD (Page Cache Disable) and PWT (Page Write Through) + // bits are set to disable caching for a memory mapping used + // for MMIO register access. We also disable caching using + // the MTRR registers for Pentium Pro and later chipsets so if + // MTRR support is enabled for your OS then you can safely ignore + // the isCached flag and always enable caching in the page + // tables. + return NULL; +} + +/**************************************************************************** +REMARKS: +Free a physical address mapping allocated by PM_mapPhysicalAddr. +****************************************************************************/ +void PMAPI PM_freePhysicalAddr( + void *ptr, + ulong limit) +{ + // TODO: This function will free a physical memory mapping previously + // allocated with PM_mapPhysicalAddr() if at all possible. If + // you can't free physical memory mappings, simply do nothing. +} + +/**************************************************************************** +REMARKS: +Find the physical address of a linear memory address in current process. +****************************************************************************/ +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) +{ + // TODO: Put the process to sleep for 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) +{ + // TODO: This is used to allocate memory that is shared between process + // that all access the common Nucleus drivers via a common display + // driver DLL. If your OS does not support shared memory (or if + // the display driver does not need to allocate shared memory + // for each process address space), this should just call PM_malloc. + return PM_malloc(size); +} + +/**************************************************************************** +REMARKS: +Free a block of shared memory. +****************************************************************************/ +void PMAPI PM_freeShared( + void *ptr) +{ + // TODO: Free the shared memory block. This will be called in the context + // of the original calling process that allocated the shared + // memory with PM_mallocShared. Simply call PM_free if you do not + // need this. + 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) +{ + // TODO: This function is used to map a physical memory mapping + // previously allocated with PM_mapPhysicalAddr into the + // address space of the calling process. If the memory mapping + // allocated by PM_mapPhysicalAddr is global to all processes, + // simply return the pointer. + + // NOTE: This function must also handle rounding to page boundaries, + // since this function is used to map in shared memory buffers + // allocated with PM_mapPhysicalAddr(). Hence if you aligned + // the physical address above, then you also need to do it here. + return base; +} + +/**************************************************************************** +REMARKS: +Map a real mode pointer to a protected mode pointer. +****************************************************************************/ +void * PMAPI PM_mapRealPointer( + uint r_seg, + uint r_off) +{ + // TODO: This function maps a real mode memory pointer into the + // calling processes address space as a 32-bit near pointer. If + // you do not support BIOS access, simply return NULL here. + if (!zeroPtr) + zeroPtr = PM_mapPhysicalAddr(0,0xFFFFF); + return (void*)(zeroPtr + MK_PHYS(r_seg,r_off)); +} + +/**************************************************************************** +REMARKS: +Allocate a block of real mode memory +****************************************************************************/ +void * PMAPI PM_allocRealSeg( + uint size, + uint *r_seg, + uint *r_off) +{ + // TODO: This function allocates a block of real mode memory for the + // calling process used to communicate with real mode BIOS + // functions. If you do not support BIOS access, simply return + // NULL here. + return NULL; +} + +/**************************************************************************** +REMARKS: +Free a block of real mode memory. +****************************************************************************/ +void PMAPI PM_freeRealSeg( + void *mem) +{ + // TODO: Frees a previously allocated real mode memory block. If you + // do not support BIOS access, this function should be empty. +} + +/**************************************************************************** +REMARKS: +Issue a real mode interrupt (parameters in DPMI compatible structure) +****************************************************************************/ +void PMAPI DPMI_int86( + int intno, + DPMI_regs *regs) +{ + // TODO: This function calls the real mode BIOS using the passed in + // register structure. If you do not support real mode BIOS + // access, this function should be empty. +} + +/**************************************************************************** +REMARKS: +Issue a real mode interrupt. +****************************************************************************/ +int PMAPI PM_int86( + int intno, + RMREGS *in, + RMREGS *out) +{ + // TODO: This function calls the real mode BIOS using the passed in + // register structure. If you do not support real mode BIOS + // access, this function should return 0. + return 0; +} + +/**************************************************************************** +REMARKS: +Issue a real mode interrupt. +****************************************************************************/ +int PMAPI PM_int86x( + int intno, + RMREGS *in, + RMREGS *out, + RMSREGS *sregs) +{ + // TODO: This function calls the real mode BIOS using the passed in + // register structure. If you do not support real mode BIOS + // access, this function should return 0. + return 0; +} + +/**************************************************************************** +REMARKS: +Call a real mode far function. +****************************************************************************/ +void PMAPI PM_callRealMode( + uint seg, + uint off, + RMREGS *in, + RMSREGS *sregs) +{ + // TODO: This function calls a real mode far function with a far call. + // If you do not support BIOS access, this function should be + // empty. +} + +/**************************************************************************** +REMARKS: +Return the amount of available memory. +****************************************************************************/ +void PMAPI PM_availableMemory( + ulong *physical, + ulong *total) +{ + // TODO: Report the amount of available memory, both the amount of + // physical memory left and the amount of virtual memory left. + // If the OS does not provide these services, report 0's. + *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, physical memory of the specified + // size. This is used for bus master operations. If this is not + // supported by the OS, return NULL and bus mastering will not + // be used. + return NULL; +} + +/**************************************************************************** +REMARKS: +Free a block of locked physical memory. +****************************************************************************/ +void PMAPI PM_freeLockedMem( + void *p, + uint size, + ibool contiguous) +{ + // TODO: Free a memory block allocated with PM_allocLockedMem. +} + +/**************************************************************************** +REMARKS: +Call the VBE/Core software interrupt to change display banks. +****************************************************************************/ +void PMAPI PM_setBankA( + int bank) +{ + RMREGS regs; + + // TODO: This does a bank switch function by calling the real mode + // VESA BIOS. If you do not support BIOS access, this function should + // be empty. + regs.x.ax = 0x4F05; + regs.x.bx = 0x0000; + regs.x.dx = bank; + PM_int86(0x10,®s,®s); +} + +/**************************************************************************** +REMARKS: +Call the VBE/Core software interrupt to change display banks. +****************************************************************************/ +void PMAPI PM_setBankAB( + int bank) +{ + RMREGS regs; + + // TODO: This does a bank switch function by calling the real mode + // VESA BIOS. If you do not support BIOS access, this function should + // be empty. + regs.x.ax = 0x4F05; + regs.x.bx = 0x0000; + regs.x.dx = bank; + PM_int86(0x10,®s,®s); + regs.x.ax = 0x4F05; + regs.x.bx = 0x0001; + regs.x.dx = bank; + PM_int86(0x10,®s,®s); +} + +/**************************************************************************** +REMARKS: +Call the VBE/Core software interrupt to change display start address. +****************************************************************************/ +void PMAPI PM_setCRTStart( + int x, + int y, + int waitVRT) +{ + RMREGS regs; + + // TODO: This changes the display start address by calling the real mode + // VESA BIOS. If you do not support BIOS access, this function + // should be empty. + regs.x.ax = 0x4F07; + regs.x.bx = waitVRT; + regs.x.cx = x; + regs.x.dx = y; + PM_int86(0x10,®s,®s); +} + +/**************************************************************************** +REMARKS: +Enable write combining for the memory region. +****************************************************************************/ +ibool PMAPI PM_enableWriteCombine( + ulong base, + ulong length, + uint type) +{ + // TODO: This function should enable Pentium Pro and Pentium II MTRR + // write combining for the passed in physical memory base address + // and length. Normally this is done via calls to an OS specific + // device driver as this can only be done at ring 0. + // + // NOTE: This is a *very* important function to implement! If you do + // not implement, graphics performance on the latest Intel chips + // will be severly impaired. For sample code that can be used + // directly in a ring 0 device driver, see the MSDOS implementation + // which includes assembler code to do this directly (if the + // program is running at ring 0). + return false; +} + +/**************************************************************************** +REMARKS: +Execute the POST on the secondary BIOS for a controller. +****************************************************************************/ +ibool PMAPI PM_doBIOSPOST( + ushort axVal, + ulong BIOSPhysAddr, + void *mappedBIOS) +{ + // TODO: This function is used to run the BIOS POST code on a secondary + // controller to initialise it for use. This is not necessary + // for multi-controller operation, but it will make it a lot + // more convenicent for end users (otherwise they have to boot + // the system once with the secondary controller as primary, and + // then boot with both controllers installed). + // + // Even if you don't support full BIOS access, it would be + // adviseable to be able to POST the secondary controllers in the + // system using this function as a minimum requirement. Some + // graphics hardware has registers that contain values that only + // the BIOS knows about, which makes bring up a card from cold + // reset difficult if the BIOS has not POST'ed it. + return false; +} + +/**************************************************************************** +REMARKS: +Load an OS specific shared library or DLL. If the OS does not support +shared libraries, simply return NULL. +****************************************************************************/ +PM_MODULE PMAPI PM_loadLibrary( + const char *szDLLName) +{ + // TODO: This function should load a native shared library from disk + // given the path to the library. + (void)szDLLName; + return NULL; +} + +/**************************************************************************** +REMARKS: +Get the address of a named procedure from a shared library. +****************************************************************************/ +void * PMAPI PM_getProcAddress( + PM_MODULE hModule, + const char *szProcName) +{ + // TODO: This function should return the address of a named procedure + // from a native shared library. + (void)hModule; + (void)szProcName; + return NULL; +} + +/**************************************************************************** +REMARKS: +Unload a shared library. +****************************************************************************/ +void PMAPI PM_freeLibrary( + PM_MODULE hModule) +{ + // TODO: This function free a previously loaded native shared library. + (void)hModule; +} + +/**************************************************************************** +REMARKS: +Enable requested I/O privledge level (usually only to set to a value of +3, and then restore it back again). If the OS is protected this function +must be implemented in order to enable I/O port access for ring 3 +applications. The function should return the IOPL level active before +the switch occurred so it can be properly restored. +****************************************************************************/ +int PMAPI PM_setIOPL( + int level) +{ + // TODO: This function should enable IOPL for the task (if IOPL is + // not always enabled for the app through some other means). + return level; +} + +/**************************************************************************** +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) +{ + 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; +} |
