318 lines
12 KiB
C
318 lines
12 KiB
C
/* $NetBSD: oldmon.h,v 1.13 2001/12/04 00:05:05 darrenr Exp $ */
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/*
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* Copyright (C) 1985 Regents of the University of California
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* Copyright (c) 1993 Adam Glass
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Adam Glass.
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* 4. The name of the Author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Sprite /cdrom/src/kernel/Cvsroot/kernel/mach/sun3.md/machMon.h,v
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* 9.1 90/10/03 13:52:34 mgbaker Exp SPRITE (Berkeley)
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*/
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#ifndef _MACHINE_OLDMON_H
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#define _MACHINE_OLDMON_H
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#if defined(_KERNEL_OPT)
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#include "opt_sparc_arch.h"
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#endif
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/*
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* Structures, constants and defines for access to the sun monitor.
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* These are translated from the sun monitor header file "sunromvec.h".
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*
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* The memory addresses for the PROM, and the EEPROM.
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* On the sun2 these addresses are actually 0x00EF??00
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* but only the bottom 24 bits are looked at so these still
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* work ok.
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*/
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#define PROM_BASE 0xffe81000
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enum maptypes { /* Page map entry types. */
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MAP_MAINMEM,
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MAP_OBIO,
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MAP_MBMEM,
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MAP_MBIO,
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MAP_VME16A16D,
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MAP_VME16A32D,
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MAP_VME24A16D,
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MAP_VME24A32D,
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MAP_VME32A16D,
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MAP_VME32A32D
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};
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/*
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* This table gives information about the resources needed by a device.
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*/
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struct devinfo {
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unsigned int d_devbytes; /* Bytes occupied by device in IO space.*/
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unsigned int d_dmabytes; /* Bytes needed by device in DMA memory.*/
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unsigned int d_localbytes;/* Bytes needed by device for local info.*/
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unsigned int d_stdcount; /* How many standard addresses. */
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unsigned long *d_stdaddrs; /* The vector of standard addresses. */
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enum maptypes d_devtype; /* What map space device is in. */
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unsigned int d_maxiobytes;/* Size to break big I/O's into. */
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};
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/*
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* A "stand alone I/O request".
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* This is passed as the main argument to the PROM I/O routines
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* in the `om_boottable' structure.
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*/
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struct saioreq {
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char si_flgs;
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struct om_boottable *si_boottab;/* Points to boottab entry if any */
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char *si_devdata; /* Device-specific data pointer */
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int si_ctlr; /* Controller number or address */
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int si_unit; /* Unit number within controller */
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long si_boff; /* Partition number within unit */
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long si_cyloff;
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long si_offset;
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long si_bn; /* Block number to R/W */
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char *si_ma; /* Memory address to R/W */
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int si_cc; /* Character count to R/W */
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struct saif *si_sif; /* net if. pointer (set by b_open) */
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char *si_devaddr; /* Points to mapped in device */
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char *si_dmaaddr; /* Points to allocated DMA space */
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};
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#define SAIO_F_READ 0x01
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#define SAIO_F_WRITE 0x02
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#define SAIO_F_ALLOC 0x04
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#define SAIO_F_FILE 0x08
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#define SAIO_F_EOF 0x10 /* EOF on device */
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#define SAIO_F_AJAR 0x20 /* Descriptor "ajar" (stopped but not closed) */
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/*
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* The table entry that describes a device. It exists in the PROM; a
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* pointer to it is passed in MachMonBootParam. It can be used to locate
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* PROM subroutines for opening, reading, and writing the device.
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*
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* When using this interface, only one device can be open at once.
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*
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* NOTE: I am not sure what arguments boot, open, close, and strategy take.
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* What is here is just translated verbatim from the sun monitor code. We
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* should figure this out eventually if we need it.
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*/
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struct om_boottable {
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char b_devname[2]; /* The name of the device */
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int (*b_probe) __P((void)); /* probe() --> -1 or found controller
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number */
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int (*b_boot) __P((void)); /* boot(bp) --> -1 or start address */
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int (*b_open)
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__P((struct saioreq *));/* open(iobp) --> -1 or 0 */
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int (*b_close)
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__P((struct saioreq *));/* close(iobp) --> -1 or 0 */
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int (*b_strategy)
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__P((struct saioreq *, int));/* strategy(iobp,rw) --> -1 or 0 */
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char *b_desc; /* Printable string describing dev */
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struct devinfo *b_devinfo; /* info to configure device. */
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};
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/*
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* Structure set up by the boot command to pass arguments to the program that
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* is booted.
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*/
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struct om_bootparam {
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char *argPtr[8]; /* String arguments */
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char strings[100]; /* String table for string arguments */
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char devName[2]; /* Device name */
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int ctlrNum; /* Controller number */
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int unitNum; /* Unit number */
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int partNum; /* Partition/file number */
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char *fileName; /* File name, points into strings */
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struct om_boottable *bootTable; /* Points to table entry for device */
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};
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/*
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* Here is the structure of the vector table which is at the front of the boot
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* rom. The functions defined in here are explained below.
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*
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* NOTE: This struct has references to the structures keybuf and globram which
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* I have not translated. If anyone needs to use these they should
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* translate these structs into Sprite format.
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*/
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struct om_vector {
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char *initSp; /* Initial system stack ptr for hardware */
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int (*startMon) __P((void));/* Initial PC for hardware */
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int *diagberr; /* Bus err handler for diags */
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/* Monitor and hardware revision and identification */
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struct om_bootparam **bootParam; /* Info for bootstrapped pgm */
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u_long *memorySize; /* Usable memory in bytes */
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/* Single-character input and output */
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int (*getChar) __P((void)); /* Get char from input source */
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void (*putChar) __P((int)); /* Put char to output sink */
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int (*mayGet) __P((void)); /* Maybe get char, or -1 */
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int (*mayPut) __P((int)); /* Maybe put char, or -1 */
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u_char *echo; /* Should getchar echo? */
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u_char *inSource; /* Input source selector */
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u_char *outSink; /* Output sink selector */
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#define PROMDEV_KBD 0 /* input from keyboard */
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#define PROMDEV_SCREEN 0 /* output to screen */
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#define PROMDEV_TTYA 1 /* in/out to ttya */
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#define PROMDEV_TTYB 2 /* in/out to ttyb */
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/* Keyboard input (scanned by monitor nmi routine) */
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int (*getKey) __P((void)); /* Get next key if one exists */
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int (*initGetKey) __P((void));/* Initialize get key */
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u_int *translation; /* Kbd translation selector */
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u_char *keyBid; /* Keyboard ID byte */
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int *screen_x; /* V2: Screen x pos (R/O) */
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int *screen_y; /* V2: Screen y pos (R/O) */
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struct keybuf *keyBuf; /* Up/down keycode buffer */
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/* Monitor revision level. */
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char *monId;
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/* Frame buffer output and terminal emulation */
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int (*fbWriteChar) __P((void));/* Write a character to FB */
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int *fbAddr; /* Address of frame buffer */
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char **font; /* Font table for FB */
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void (*fbWriteStr) __P((char *, int));
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/* Quickly write string to FB */
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/* Reboot interface routine -- resets and reboots system. */
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void (*reBoot) __P((char *)) /* e.g. reBoot("xy()vmunix") */
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__attribute__((__noreturn__));
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/* Line input and parsing */
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u_char *lineBuf; /* The line input buffer */
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u_char **linePtr; /* Cur pointer into linebuf */
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int *lineSize; /* length of line in linebuf */
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int (*getLine) __P((void)); /* Get line from user */
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u_char (*getNextChar) __P((void));/* Get next char from linebuf */
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u_char (*peekNextChar) __P((void));/* Peek at next char */
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int *fbThere; /* =1 if frame buffer there */
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int (*getNum) __P((void)); /* Grab hex num from line */
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/* Print formatted output to current output sink */
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int (*printf) __P((void)); /* Similar to "Kernel printf" */
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int (*printHex) __P((void));/* Format N digits in hex */
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/* Led stuff */
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u_char *leds; /* RAM copy of LED register */
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int (*setLeds) __P((void)); /* Sets LED's and RAM copy */
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/* Non-maskable interrupt (nmi) information */
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int (*nmiAddr) __P((void)); /* Addr for level 7 vector */
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void (*abortEntry) __P((void));/* Entry for keyboard abort */
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int *nmiClock; /* Counts up in msec */
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/* Frame buffer type: see <machine/fbio.h> */
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int *fbType;
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/* Assorted other things */
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u_long romvecVersion; /* Version # of Romvec */
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struct globram *globRam; /* monitor global variables */
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caddr_t kbdZscc; /* Addr of keyboard in use */
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int *keyrInit; /* ms before kbd repeat */
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u_char *keyrTick; /* ms between repetitions */
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u_long *memoryAvail; /* V1: Main mem usable size */
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long *resetAddr; /* where to jump on a reset */
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long *resetMap; /* pgmap entry for resetaddr */
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/* Really struct pgmapent * */
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__dead void (*exitToMon) __P((void)) /* Exit from user program */
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__attribute__((noreturn));
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u_char **memorybitmap; /* V1: &{0 or &bits} */
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void (*setcxsegmap) /* Set seg in any context */
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__P((int, caddr_t, int));
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void (**vector_cmd) __P((u_long, char *));/* V2: Handler for 'v' cmd */
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u_long *ExpectedTrapSig;
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u_long *TrapVectorTable;
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int dummy1z;
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int dummy2z;
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int dummy3z;
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int dummy4z;
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};
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#define romVectorPtr ((struct om_vector *)PROM_BASE)
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#define mon_printf (romVectorPtr->printf)
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#define mon_putchar (romVectorPtr->putChar)
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#define mon_may_getchar (romVectorPtr->mayGet)
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#define mon_exit_to_mon (romVectorPtr->exitToMon)
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#define mon_reboot (romVectorPtr->exitToMon)
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#define mon_panic(x) { mon_printf(x); mon_exit_to_mon();}
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#define mon_setcxsegmap(context, va, sme) \
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romVectorPtr->setcxsegmap(context, va, sme)
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/*
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* OLDMON_STARTVADDR and OLDMON_ENDVADDR denote the range of the damn monitor.
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*
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* supposedly you can steal pmegs within this range that do not contain
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* valid pages.
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*/
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#define OLDMON_STARTVADDR 0xFFD00000
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#define OLDMON_ENDVADDR 0xFFF00000
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/*
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* These describe the monitor's short segment which it basically uses to map
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* one stupid page that it uses for storage. MONSHORTPAGE is the page,
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* and MONSHORTSEG is the segment that it is in. If this sounds dumb to
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* you, it is. I can change the pmeg, but not the virtual address.
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* Sun defines these with the high nibble set to 0xF. I believe this was
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* for the monitor source which accesses this piece of memory with addressing
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* limitations or some such crud. I haven't replicated this here, because
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* it is confusing, and serves no obvious purpose if you aren't the monitor.
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*
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*/
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#define MONSHORTPAGE 0x0FFFE000
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#define MONSHORTSEG 0x0FFE0000
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/*
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* Ethernet interface descriptor
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* First, set: saiop->si_devaddr, saiop->si_dmaaddr, etc.
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* Then: saiop->si_boottab->b_open() will set:
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* saiop->si_sif;
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* saiop->si_devdata;
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* The latter is the first arg to the following functions.
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* Note that the buffer must be in DVMA space...
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*/
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struct saif {
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/* transmit packet, returns zero on success. */
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int (*sif_xmit)(void *devdata, char *buf, int len);
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/* wait for packet, zero if none arrived */
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int (*sif_poll)(void *devdata, char *buf);
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/* reset interface, set addresses, etc. */
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int (*sif_reset)(void *devdata, struct saioreq *sip);
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/* Later (sun4 only) proms have more stuff here. */
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};
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#if defined(SUN4)
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void oldmon_w_trace __P((u_long));
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void oldmon_w_cmd __P((u_long, char *));
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#endif
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#endif /* _MACHINE_OLDMON_H */
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