/* $NetBSD: macrom.h,v 1.20 2024/04/18 10:32:03 andvar Exp $ */ /*- * Copyright (C) 1994 Bradley A. Grantham * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/types.h> #include <machine/frame.h> /* Low-memory Globals */ extern void * ROMBase; /* Base address of ROM space */ extern void * ADBBase; /* Base address of ADB scratch */ extern void * ADBYMM; /* Base address of yet more ADB mem */ extern void * ADBState; /* Base address of ADB scratch ? */ extern void (*JADBProc)(void); /* ADBReInit pre/post processing */ extern void (*Lvl1DT[8])(void); /* VIA1 interrupt table by bit */ extern void (*Lvl2DT[8])(void); /* VIA2 interrupt table by bit */ extern void (*jADBOp)(void); /* low memory pointer to ADBOp */ extern void (*jUnimplTrap)(void); /* Unimplemented trap */ /* loglob(KbdLast, 0x218) * addr of last kbd to send */ /* loglob(KbdType, 0x21E) * type of last kbd to send */ extern void (*JKybdTask)(void); /* Keyboard task ptr? */ extern u_char CPUFlag; /* Type of CPU in this machine */ extern void (*MacJmp)(void); /* ??? */ extern u_long Lo3Bytes; /* 0x00ffffff */ extern u_long MinusOne; /* 0xffffffff */ extern u_short MMU32Bit; /* MMU mode; short? */ extern u_char Scratch8[8]; /* 8-byte scratch */ extern u_char Scratch20[20]; /* 20-byte scratch */ extern u_long Ticks; /* ticks since startup */ extern u_long Time; /* ticks since startup */ extern u_short TimeDBRA; /* DBRA's per milli */ extern u_short ADBDelay; /* DBRAs per ADB loop, / 8 */ extern u_char ToolScratch[8]; /* Yet another 8-byte scratch area */ extern void * VIA; /* VIA1 base address */ extern void * mrg_VIA2; /* VIA2 base address */ extern void * SCCRd; /* SCC read base address */ extern u_char FinderName[20]; /* FinderName - Pascal string */ extern void (*jSwapMMU)(void); /* Pointer to MMU Swap routine */ extern void (*jEgret)(void); /* Pointer to MMU Swap routine */ extern u_int16_t HwCfgFlags; /* Hardware config flags */ extern u_int32_t HwCfgFlags2; /* more hardware config flags */ extern u_int32_t HwCfgFlags3; /* more hardware config flags */ extern u_int32_t ADBReInit_JTBL; /* pointer to patch table */ extern void (*jClkNoMem)(void); /* pointer to ClkNoMem */ extern u_char SysParam[20]; /* Place where PRam data gets stored */ extern void * ExpandMem; /* pointer to Expanded Memory used by */ /* newer ADB routines (since LCIII) */ extern u_int16_t VBLQueue; /* Vertical blanking Queue, unused ? */ extern void * VBLQueue_head; /* Vertical blanking Queue, head */ extern void * VBLQueue_tail; /* Vertical blanking Queue, tail */ extern void * jDTInstall; /* Deferred task mgr trap handler */ extern u_int32_t **InitEgretJTVec; /* pointer to a jump table for */ /* InitEgret on AV machines */ /* Types */ typedef void *Ptr; typedef void **Handle; /* ADB Manager */ typedef struct { Ptr siServiceRtPtr; Ptr siDataAreaAddr; } ADBSetInfoBlock; typedef struct { unsigned char devType; unsigned char origADBAddr; Ptr dbServiceRtPtr; Ptr dbDataAreaAddr; } ADBDataBlock; /* Trap Flesh; these functions are C, not Pascal */ /* trap tests */ int MyOwnTrap(void); void KnownRTS(void); #ifdef MRG_ADB /* * These functions are defined in adb_direct.c if we are not using * the MRG method of accessing the ADB/PRAM/RTC. */ /* ADB Manager */ int SetADBInfo(ADBSetInfoBlock *, int); int CountADBs(void); int GetIndADB(ADBDataBlock *, int); int GetADBInfo(ADBDataBlock *, int); void ADBReInit(void); /* note different order of parameters */ int ADBOp(Ptr, Ptr, Ptr, short); void ADBAlternateInit(void); #endif /* Memory Manager */ Ptr NewPtr(int); int DisposPtr(Ptr); int GetPtrSize(Ptr); int SetPtrSize(Ptr, int); /* Resource Manager */ Handle GetResource(u_int, short); short ResError(void); short mrg_CountResources(u_int32_t); short Count_Resources(u_int32_t); void * *mrg_GetIndResource(u_int16_t, u_int32_t); /* Mac ROM Glue globals for BSD kernel */ extern void *mrg_romadbintr; extern void *mrg_ADBIntrPtr; extern u_char mrg_GetResource[]; /* type is almost a lie; call it an array of bytes of code */ extern u_char mrg_ResError[]; /* MacOS Error Codes */ #define noErr 0 #define memFullErr -108 #define memWZErr -111 #define resNotFound -192 /* Dump instruction trace */ void dumptrace(void); /* Stuff for configuring ROM Glue */ typedef struct rsrc_s { u_int16_t unknown[4]; /* ???? */ u_int32_t next; /* pointer to next resource in list */ u_int32_t body; /* pointer to resource body? */ u_int32_t name; /* resource name */ u_int16_t index; /* ???? */ } rsrc_t; typedef struct romvec_s { const char *romident; /* just to print it out */ void *adbintr; /* where is ADB interrupt */ void *pmintr; /* where is ADB/PM interrupt, on machines */ /* that have it */ void *adb130intr; /* ADBBase[0x130] interrupt; don't know */ /* what it is, but it's important. Don't */ /* you love reverse engineering? */ void *CountADBs; void *GetIndADB; void *GetADBInfo; void *SetADBInfo; void *ADBReInit; void *ADBOp; void *PMgrOp; /* On machines that have it */ void *WriteParam; void *SetDateTime; void *InitUtil; void *ReadXPRam; void *WriteXPRam; void *jClkNoMem; void *ADBAlternateInit; /* more fundamental than ABDReInit */ void *Egret; void *InitEgret; /* Set up Buffer for Egret routines */ void *ADBReInit_JTBL; void *ROMResourceMap; /* Address of first Resource in linked list */ void *FixDiv; void *FixMul; } romvec_t; /* * Function prototypes. */ /* macrom.c */ void mrg_setvectors(romvec_t *); int mrg_romready(void); void * *Get_Ind_Resource(u_int32_t, u_int16_t); void mrg_initadbintr(void); long mrg_adbintr(void); long mrg_pmintr(void); void mrg_fixupROMBase(void *, void *); int mrg_Delay(void); void mrg_DTInstall(void); void mrg_execute_deferred(void); void mrg_VBLQueue(void); void mrg_init_stub_1(void); void mrg_init_stub_2(void); void mrg_1sec_timer_tick(void); void mrg_lvl1dtpanic(void); void mrg_lvl2dtpanic(void); void mrg_jadbprocpanic(void); void mrg_jswapmmupanic(void); void mrg_jkybdtaskpanic(void); void mrg_notrap(void); int myowntrap(void); int mrg_NewPtr(void); int mrg_DisposPtr(void); int mrg_GetPtrSize(void); int mrg_SetPtrSize(void); int mrg_PostEvent(void); int mrg_SetTrapAddress(void); void mrg_StripAddress(void); void mrg_aline_super(struct frame *); void mrg_init(void); void mrg_FixDiv(void); void mrg_FixMul(void); /* machdep.c */ int mach_cputype(void); /* Tracing aids */ /* trace all instructions, not just flow changes. */ #define tron() \ __asm("movw %%sr, %%d0 ; orw #0x8000, %%d0 ; movw %%d0, %%sr" : : : "d0") #define troff() \ __asm("movw %%sr, %%d0 ; andw #0x3fff, %%d0 ; movw %%d0, %%sr" : : : "d0")
