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Diffstat (limited to 'board/MAI/bios_emulator/scitech/include/pmint.h')
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1 files changed, 211 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/include/pmint.h b/board/MAI/bios_emulator/scitech/include/pmint.h new file mode 100644 index 0000000000..7d76dad50c --- /dev/null +++ b/board/MAI/bios_emulator/scitech/include/pmint.h @@ -0,0 +1,211 @@ +/**************************************************************************** +* +* 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: Real mode and 16/32 bit Protected Mode +* +* Description: Header file for the interrupt handling extensions to the OS +* Portability Manager Library. These extensions includes +* simplified interrupt handling, allowing all common interrupt +* handlers to be hooked and handled directly with normal C +* functions, both in 16 bit and 32 bit modes. Note however that +* simplified handling does not mean slow performance! All low +* level interrupt handling is done efficiently in assembler +* for speed (well actually necessary to insulate the +* application from the lack of far pointers in 32 bit PM). The +* interrupt handlers currently supported are: +* +* Mouse (0x33 callback) +* Timer Tick (0x8) +* Keyboard (0x9 and 0x15) +* Control C/Break (0x23/0x1B) +* Critical Error (0x24) +* +****************************************************************************/ + +#ifndef __PMINT_H +#define __PMINT_H + +/*--------------------------- Macros and Typedefs -------------------------*/ + +#ifdef __SMX32__ +/* PC interrupts (Ensure consistent with pme.inc) */ +#define PM_IRQ0 0x40 +#define PM_IRQ1 (PM_IRQ0+1) +#define PM_IRQ6 (PM_IRQ0+6) +#define PM_IRQ14 (PM_IRQ0+14) +#endif + +/* Define the different types of interrupt handlers that we support */ + +typedef uint (PMAPIP PM_criticalHandler)(uint axValue,uint diValue); +typedef void (PMAPIP PM_breakHandler)(uint breakHit); +typedef short (PMAPIP PM_key15Handler)(short scanCode); +typedef void (PMAPIP PM_mouseHandler)(uint event, uint butstate,int x,int y,int mickeyX,int mickeyY); + +/* Create a type for representing far pointers in both 16 and 32 bit + * protected mode. + */ + +#ifdef PM386 +typedef struct { + long off; + short sel; + } PMFARPTR; +#define PMNULL {0,0} +#else +typedef void *PMFARPTR; +#define PMNULL NULL +#endif + +/*--------------------------- Function Prototypes -------------------------*/ + +#ifdef __cplusplus +extern "C" { /* Use "C" linkage when in C++ mode */ +#endif + +/* Routine to load save default data segment selector value into a code + * segment variable, and another to load the value into the DS register. + */ + +void PMAPI PM_loadDS(void); +void PMAPI PM_saveDS(void); + +/* Routine to install a mouse interrupt handling routine. The + * mouse handler routine is a normal C function, and the PM library + * will take care of passing the correct parameters to the function, + * and switching to a local stack. + * + * Note that you _must_ lock the memory containing the mouse interrupt + * handler with the PM_lockPages() function otherwise you may encounter + * problems in virtual memory environments. + */ + +int PMAPI PM_setMouseHandler(int mask,PM_mouseHandler mh); +void PMAPI PM_restoreMouseHandler(void); + +/* Routine to reset the mouse driver, and re-install the current + * mouse interrupt handler if one was currently installed (since the + * mouse reset will automatically remove this handler. + */ + +void PMAPI PM_resetMouseDriver(int hardReset); + +/* Routine to reset the mouse driver, and re-install the current + * mouse interrupt handler if one was currently installed (since the + * mouse reset will automatically remove this handler. + */ + +void PMAPI PM_resetMouseDriver(int hardReset); + +/* Routines to install and remove timer interrupt handlers. + * + * Note that you _must_ lock the memory containing the interrupt + * handlers with the PM_lockPages() function otherwise you may encounter + * problems in virtual memory environments. + */ + +void PMAPI PM_setTimerHandler(PM_intHandler ih); +void PMAPI PM_chainPrevTimer(void); +void PMAPI PM_restoreTimerHandler(void); + +/* Routines to install and keyboard interrupt handlers. + * + * Note that you _must_ lock the memory containing the interrupt + * handlers with the PM_lockPages() function otherwise you may encounter + * problems in virtual memory environments. + */ + +void PMAPI PM_setKeyHandler(PM_intHandler ih); +void PMAPI PM_chainPrevKey(void); +void PMAPI PM_restoreKeyHandler(void); + +/* Routines to hook and unhook the alternate Int 15h keyboard intercept + * callout routine. Your event handler will need to return the following: + * + * scanCode - Let the BIOS process scan code (chains to previous handler) + * 0 - You have processed the scan code so flush from BIOS + * + * Note that this is not available under all DOS extenders, but does + * work under real mode, DOS4GW and X32-VM. It does not work under the + * PowerPack 32 bit DOS extenders. If you figure out how to do it let us know! + */ + +void PMAPI PM_setKey15Handler(PM_key15Handler ih); +void PMAPI PM_restoreKey15Handler(void); + +/* Routines to install and remove the control c/break interrupt handlers. + * Interrupt handling is performed by the PM/Pro library, and you can call + * the supplied routines to test the status of the Ctrl-C and Ctrl-Break + * flags. If you pass the value TRUE for 'clearFlag' to these routines, + * the internal flags will be reset in order to catch another Ctrl-C or + * Ctrl-Break interrupt. + */ + +void PMAPI PM_installBreakHandler(void); +int PMAPI PM_ctrlCHit(int clearFlag); +int PMAPI PM_ctrlBreakHit(int clearFlag); +void PMAPI PM_restoreBreakHandler(void); + +/* Routine to install an alternate break handler that will call your + * code directly. This is not available under all DOS extenders, but does + * work under real mode, DOS4GW and X32-VM. It does not work under the + * PowerPack 32 bit DOS extenders. If you figure out how to do it let us know! + * + * Note that you should either install one or the other, but not both! + */ + +void PMAPI PM_installAltBreakHandler(PM_breakHandler bh); + +/* Routines to install and remove the critical error handler. The interrupt + * is handled by the PM/Pro library, and the operation will always be failed. + * You can check the status of the critical error handler with the + * appropriate function. If you pass the value TRUE for 'clearFlag', the + * internal flag will be reset ready to catch another critical error. + */ + +void PMAPI PM_installCriticalHandler(void); +int PMAPI PM_criticalError(int *axValue, int *diValue, int clearFlag); +void PMAPI PM_restoreCriticalHandler(void); + +/* Routine to install an alternate critical handler that will call your + * code directly. This is not available under all DOS extenders, but does + * work under real mode, DOS4GW and X32-VM. It does not work under the + * PowerPack 32 bit DOS extenders. If you figure out how to do it let us know! + * + * Note that you should either install one or the other, but not both! + */ + +void PMAPI PM_installAltCriticalHandler(PM_criticalHandler); + +/* Functions to manage protected mode only interrupt handlers */ + +void PMAPI PM_getPMvect(int intno, PMFARPTR *isr); +void PMAPI PM_setPMvect(int intno, PM_intHandler ih); +void PMAPI PM_restorePMvect(int intno, PMFARPTR isr); + +#ifdef __cplusplus +} /* End of "C" linkage for C++ */ +#endif + +#endif /* __PMINT_H */ |
