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Diffstat (limited to 'board/MAI/bios_emulator/scitech/src/pm/beos/pm.c')
-rw-r--r-- | board/MAI/bios_emulator/scitech/src/pm/beos/pm.c | 539 |
1 files changed, 539 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/src/pm/beos/pm.c b/board/MAI/bios_emulator/scitech/src/pm/beos/pm.c new file mode 100644 index 00000000000..c57d82ab688 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/src/pm/beos/pm.c @@ -0,0 +1,539 @@ +/**************************************************************************** +* +* 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: BeOS +* +* 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 BeOS specific headers here! + +/*--------------------------- Global variables ----------------------------*/ + +static void (PMAPIP fatalErrorCleanup)(void) = NULL; + +/*----------------------------- Implementation ----------------------------*/ + +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(); */ +} + +long PMAPI PM_getOSType(void) +{ return _OS_BEOS; } + +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) +{ + // 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); +} + +void * PMAPI PM_getVESABuf(uint *len,uint *rseg,uint *roff) +{ + // No BIOS access for the BeOS + return NULL; +} + +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; +} + +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; +} + +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; +} + +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; +} + +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. +} + +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. +} + +void PMAPI PM_closeConsole(int console_id) +{ + // TODO: Close the console when we are done, going back to text mode. +} + +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). +} + +void PM_setOSScreenWidth(int width,int height) +{ + // TODO: Set the OS console screen width. This is generally unused for + // new OS ports. +} + +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; +} + +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. +} + +void PMAPI PM_restoreRealTimeClockHandler(void) +{ + // TODO: Restores the real time clock handler. +} + +char * PMAPI PM_getCurrentPath( + char *path, + int maxLen) +{ + return getcwd(path,maxLen); +} + +char PMAPI PM_getBootDrive(void) +{ return '/'; } + +const char * PMAPI PM_getVBEAFPath(void) +{ return PM_getNucleusConfigPath(); } + +const char * PMAPI PM_getNucleusPath(void) +{ + char *env = getenv("NUCLEUS_PATH"); + return env ? env : "/usr/lib/nucleus"; +} + +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) +{ + // 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; +} + +const char * PMAPI PM_getMachineName(void) +{ + // TODO: Return the network machine name for the machine. + static char buf[128]; + gethostname(buf, 128); + return buf; +} + +void * PMAPI PM_getBIOSPointer(void) +{ + // No BIOS access on the BeOS + return NULL; +} + +void * PMAPI PM_getA0000Pointer(void) +{ + static void *bankPtr; + if (!bankPtr) + bankPtr = PM_mapPhysicalAddr(0xA0000,0xFFFF,true); + return bankPtr; +} + +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; +} + +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. +} + +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; +} + +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); +} + +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 free if you do not + // need this. + PM_free(ptr); +} + +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. + return base; +} + +void * PMAPI PM_mapRealPointer(uint r_seg,uint r_off) +{ + // No BIOS access on the BeOS + return NULL; +} + +void * PMAPI PM_allocRealSeg(uint size,uint *r_seg,uint *r_off) +{ + // No BIOS access on the BeOS + return NULL; +} + +void PMAPI PM_freeRealSeg(void *mem) +{ + // No BIOS access on the BeOS +} + +void PMAPI DPMI_int86(int intno, DPMI_regs *regs) +{ + // No BIOS access on the BeOS +} + +int PMAPI PM_int86(int intno, RMREGS *in, RMREGS *out) +{ + // No BIOS access on the BeOS + return 0; +} + +int PMAPI PM_int86x(int intno, RMREGS *in, RMREGS *out, + RMSREGS *sregs) +{ + // No BIOS access on the BeOS + return 0; +} + +void PMAPI PM_callRealMode(uint seg,uint off, RMREGS *in, + RMSREGS *sregs) +{ + // No BIOS access on the BeOS +} + +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; +} + +void * PMAPI PM_allocLockedMem(uint size,ulong *physAddr,ibool contiguous,ibool below16Meg) +{ + // 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; +} + +void PMAPI PM_freeLockedMem(void *p,uint size,ibool contiguous) +{ + // TODO: Free a memory block allocated with PM_allocLockedMem. +} + +void PMAPI PM_setBankA(int bank) +{ + // No BIOS access on the BeOS +} + +void PMAPI PM_setBankAB(int bank) +{ + // No BIOS access on the BeOS +} + +void PMAPI PM_setCRTStart(int x,int y,int waitVRT) +{ + // No BIOS access on the BeOS +} + +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; +} + +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: +Function to find the first file matching a search criteria in a directory. +****************************************************************************/ +ulong PMAPI PM_findFirstFile( + const char *filename, + PM_findData *findData) +{ + (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) +{ + (void)handle; + (void)findData; + return false; +} + +/**************************************************************************** +REMARKS: +Function to close the find process +****************************************************************************/ +void PMAPI PM_findClose( + ulong handle) +{ + (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; +} |