Add the remaining kgdb pieces from sun3/hp300, with some mac68k-specific
adjustments to initialization.
This commit is contained in:
scottr
parent
4015691473
commit
22b90adcc2
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@ -1,4 +1,4 @@
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/* $NetBSD: zs.c,v 1.19 1998/01/12 19:22:18 thorpej Exp $ */
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/* $NetBSD: zs.c,v 1.20 1998/05/05 06:48:51 scottr Exp $ */
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/*
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* Copyright (c) 1996 Bill Studenmund
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@ -65,15 +65,15 @@
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <dev/cons.h>
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#include <dev/ic/z8530reg.h>
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#include <machine/z8530var.h>
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#include <machine/autoconf.h>
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#include <machine/cpu.h>
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#include <machine/viareg.h>
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#include <dev/cons.h>
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#include <dev/ic/z8530reg.h>
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#include <machine/z8530var.h>
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#include <mac68k/dev/zs_cons.h>
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/* Are these in a header file anywhere? */
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/* Booter flags interface */
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#define ZSMAC_RAW 0x01
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@ -140,9 +140,7 @@ dev_t mac68k_zsdev;
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/* Mac stuff */
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volatile unsigned char *sccA = 0;
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static struct zschan *zs_get_chan_addr __P((int zsc_unit, int channel));
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void zs_init __P((void));
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int zs_cn_check_speed __P((int bps));
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int zs_cn_check_speed __P((int bps));
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/*
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* Even though zsparam will set up the clock multiples, etc., we
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@ -170,7 +168,7 @@ static u_char zs_init_reg[16] = {
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ZSWR15_BREAK_IE | ZSWR15_DCD_IE,
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};
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static struct zschan *
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struct zschan *
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zs_get_chan_addr(zsc_unit, channel)
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int zsc_unit, channel;
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{
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@ -183,7 +181,7 @@ zs_get_chan_addr(zsc_unit, channel)
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if (addr == NULL)
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return NULL;
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if (channel == 0) {
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zc = (struct zschan *)(addr +2);
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zc = (struct zschan *)(addr + 2);
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/* handle the fact the ports are intertwined. */
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} else {
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zc = (struct zschan *)(addr);
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@ -465,8 +463,8 @@ int
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zshard(arg)
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void *arg;
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{
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register struct zsc_softc *zsc;
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register int unit, rval;
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struct zsc_softc *zsc;
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int unit, rval;
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rval = 0;
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for (unit = 0; unit < zsc_cd.cd_ndevs; unit++) {
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@ -495,8 +493,8 @@ int
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zssoft(arg)
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void *arg;
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{
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register struct zsc_softc *zsc;
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register int unit;
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struct zsc_softc *zsc;
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int unit;
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/* This is not the only ISR on this IPL. */
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if (zssoftpending == 0)
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@ -815,7 +813,7 @@ zs_write_reg(cs, reg, val)
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u_char zs_read_csr(cs)
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struct zs_chanstate *cs;
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{
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register u_char val;
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u_char val;
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val = *cs->cs_reg_csr;
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ZS_DELAY();
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@ -836,7 +834,7 @@ void zs_write_csr(cs, val)
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u_char zs_read_data(cs)
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struct zs_chanstate *cs;
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{
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register u_char val;
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u_char val;
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val = *cs->cs_reg_data;
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ZS_DELAY();
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@ -862,8 +860,6 @@ void zs_write_data(cs, val)
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#define zscnpollc nullcnpollc
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cons_decl(zs);
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static void zs_putc __P((register volatile struct zschan *, int));
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static int zs_getc __P((register volatile struct zschan *));
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static void zscnsetup __P((void));
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extern int zsopen __P(( dev_t dev, int flags, int mode, struct proc *p));
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@ -1003,11 +999,12 @@ zscninit(struct consdev * cp)
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/*
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* Polled input char.
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*/
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static int
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zs_getc(zc)
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register volatile struct zschan *zc;
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int
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zs_getc(arg)
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void *arg;
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{
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register int s, c, rr0;
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volatile struct zschan *zc = arg;
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int s, c, rr0;
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s = splhigh();
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/* Wait for a character to arrive. */
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@ -1030,13 +1027,14 @@ zs_getc(zc)
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/*
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* Polled output char.
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*/
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static void
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zs_putc(zc, c)
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register volatile struct zschan *zc;
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void
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zs_putc(arg, c)
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void *arg;
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int c;
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{
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register int s, rr0;
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register long wait = 0;
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volatile struct zschan *zc = arg;
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int s, rr0;
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long wait = 0;
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s = splhigh();
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/* Wait for transmitter to become ready. */
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@ -1060,8 +1058,8 @@ int
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zscngetc(dev)
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dev_t dev;
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{
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register volatile struct zschan *zc = zs_conschan;
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register int c;
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struct zschan *zc = zs_conschan;
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int c;
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c = zs_getc(zc);
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return (c);
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@ -1075,7 +1073,7 @@ zscnputc(dev, c)
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dev_t dev;
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int c;
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{
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register volatile struct zschan *zc = zs_conschan;
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struct zschan *zc = zs_conschan;
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zs_putc(zc, c);
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}
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@ -1091,7 +1089,7 @@ zs_abort(cs)
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{
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volatile struct zschan *zc = zs_conschan;
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int rr0;
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register long wait = 0;
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long wait = 0;
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if (zs_cons_canabort == 0)
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return;
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@ -0,0 +1,14 @@
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/* $NetBSD: zs_cons.h,v 1.1 1998/05/05 06:48:52 scottr Exp $ */
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extern int zsinited;
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extern void *zs_conschan;
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void zs_init __P((void));
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int zs_getc __P((void *arg));
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void zs_putc __P((void *arg, int c));
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struct zschan *zs_get_chan_addr __P((int zsc_unit, int channel));
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#ifdef KGDB
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void zs_kgdb_init __P((void));
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#endif
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@ -0,0 +1,303 @@
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/* $NetBSD: zs_kgdb.c,v 1.1 1998/05/05 06:48:52 scottr Exp $ */
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/*-
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* Copyright (c) 1996 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Gordon W. Ross.
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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 the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Hooks for kgdb when attached via the z8530 driver
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*
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* To use this, build a kernel with: option KGDB, and
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* boot that kernel with "-d". (The kernel will call
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* zs_kgdb_init, kgdb_connect.) When the console prints
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* "kgdb waiting..." you run "gdb -k kernel" and do:
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* (gdb) set remotebaud 19200
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* (gdb) target remote /dev/ttyb
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/device.h>
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#include <sys/conf.h>
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#include <sys/ioctl.h>
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <sys/kgdb.h>
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#include <dev/ic/z8530reg.h>
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#include <machine/z8530var.h>
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#include <mac68k/dev/zs_cons.h>
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/*
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* Macs supposely provide a 3.672 MHz clock to the SCC. Unfortunately,
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* empirical evidence suggests that it's really a 3.6864 MHz clock.
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* Oh, what to do, what to do?!
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*/
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#define PCLK (9600 * 384) /* PCLK pin input clock rate */
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#define ZSHARD_PRI 4 /* Wired on the CPU board... */
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#define ZS_DELAY() delay(2)
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/* The layout of this is hardware-dependent (padding, order). */
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struct zschan {
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volatile u_char zc_csr; /* ctrl,status, and indirect access */
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u_char zc_xxx0;
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u_char zc_xxx1; /* part of the other channel lives here! */
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u_char zc_xxx2; /* Yea Apple! */
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volatile u_char zc_data; /* data */
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u_char zc_xxx3;
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u_char zc_xxx4;
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u_char zc_xxx5;
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};
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static void zs_setparam __P((struct zs_chanstate *, int, int));
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static void zskgdb __P((struct zs_chanstate *));
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struct zsops zsops_kgdb;
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static u_char zs_kgdb_regs[16] = {
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0, /* 0: CMD (reset, etc.) */
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0, /* 1: ~(ZSWR1_RIE | ZSWR1_TIE | ZSWR1_SIE) */
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0x18 + ZSHARD_PRI, /* IVECT */
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ZSWR3_RX_8 | ZSWR3_RX_ENABLE,
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ZSWR4_CLK_X16 | ZSWR4_ONESB | ZSWR4_EVENP,
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ZSWR5_TX_8 | ZSWR5_TX_ENABLE,
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0, /* 6: TXSYNC/SYNCLO */
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0, /* 7: RXSYNC/SYNCHI */
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0, /* 8: alias for data port */
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ZSWR9_MASTER_IE,
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0, /*10: Misc. TX/RX control bits */
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ZSWR11_TXCLK_BAUD | ZSWR11_RXCLK_BAUD,
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14, /*12: BAUDLO (default=9600) */
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0, /*13: BAUDHI (default=9600) */
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ZSWR14_BAUD_FROM_PCLK | ZSWR14_BAUD_ENA,
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ZSWR15_BREAK_IE | ZSWR15_DCD_IE,
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};
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/*
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* This replaces "zs_reset()" in the sparc driver.
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*/
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static void
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zs_setparam(cs, iena, rate)
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struct zs_chanstate *cs;
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int iena;
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int rate;
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{
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int s, tconst;
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bcopy(zs_kgdb_regs, cs->cs_preg, 16);
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if (iena) {
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cs->cs_preg[1] = ZSWR1_RIE | ZSWR1_SIE;
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}
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/* Initialize the speed, etc. */
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tconst = BPS_TO_TCONST(cs->cs_brg_clk, rate);
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cs->cs_preg[5] |= ZSWR5_DTR | ZSWR5_RTS;
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cs->cs_preg[12] = tconst;
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cs->cs_preg[13] = tconst >> 8;
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s = splhigh();
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zs_loadchannelregs(cs);
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splx(s);
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}
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/*
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* Set up for kgdb; called at boot time before configuration.
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* KGDB interrupts will be enabled later when zs0 is configured.
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* Called after cninit(), so printf() etc. works.
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*/
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void
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zs_kgdb_init()
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{
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struct zs_chanstate cs;
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volatile struct zschan *zc;
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int channel;
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/* printf("zs_kgdb_init: kgdb_dev=0x%x\n", kgdb_dev); */
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if (major(kgdb_dev) != zs_major)
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return;
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/* Note: (ttya,ttyb) on zsc1, and (ttyc,ttyd) on zsc0 */
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channel = kgdb_dev & 1;
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printf("zs_kgdb_init: attaching tty0%c at %d baud\n",
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'0' + (kgdb_dev & 3), kgdb_rate);
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if (!zsinited)
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zs_init();
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/* Setup temporary chanstate. */
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bzero((caddr_t)&cs, sizeof(cs));
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zc = zs_get_chan_addr(0, channel);
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if (zc == NULL) {
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printf("zs_kgdb_init: zs not mapped.\n");
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kgdb_dev = -1;
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return;
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}
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cs.cs_channel = channel;
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cs.cs_brg_clk = PCLK / 16;
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cs.cs_reg_csr = &zc->zc_csr;
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cs.cs_reg_data = &zc->zc_data;
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/* Now set parameters. (interrupts disabled) */
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zs_setparam(&cs, 0, kgdb_rate);
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/* Store the getc/putc functions and arg. */
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kgdb_attach(zs_getc, zs_putc, (void *)zc);
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}
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/*
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* This is a "hook" called by zstty_attach to allow the tty
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* to be "taken over" for exclusive use by kgdb.
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* Return non-zero if this is the kgdb port.
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*
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* Set the speed to kgdb_rate, CS8, etc.
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*/
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int
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zs_check_kgdb(cs, dev)
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struct zs_chanstate *cs;
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int dev;
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{
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if (dev != kgdb_dev)
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return (0);
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/*
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* Yes, this is port in use by kgdb.
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*/
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cs->cs_private = NULL;
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cs->cs_ops = &zsops_kgdb;
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/* Now set parameters. (interrupts enabled) */
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zs_setparam(cs, 1, kgdb_rate);
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return (1);
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}
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/*
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* KGDB framing character received: enter kernel debugger. This probably
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* should time out after a few seconds to avoid hanging on spurious input.
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*/
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static void
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zskgdb(cs)
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struct zs_chanstate *cs;
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{
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int unit = minor(kgdb_dev);
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printf("zstty%d: kgdb interrupt\n", unit);
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/* This will trap into the debugger. */
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kgdb_connect(1);
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}
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/****************************************************************
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* Interface to the lower layer (zscc)
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****************************************************************/
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static void zs_kgdb_rxint __P((struct zs_chanstate *));
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static void zs_kgdb_txint __P((struct zs_chanstate *));
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static void zs_kgdb_stint __P((struct zs_chanstate *));
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static void zs_kgdb_softint __P((struct zs_chanstate *));
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int kgdb_input_lost;
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static void
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zs_kgdb_rxint(cs)
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struct zs_chanstate *cs;
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{
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register u_char c, rr1;
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/*
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* First read the status, because reading the received char
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* destroys the status of this char.
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*/
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rr1 = zs_read_reg(cs, 1);
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c = zs_read_data(cs);
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if (rr1 & (ZSRR1_FE | ZSRR1_DO | ZSRR1_PE)) {
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/* Clear the receive error. */
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zs_write_csr(cs, ZSWR0_RESET_ERRORS);
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}
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if (c == KGDB_START) {
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zskgdb(cs);
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} else {
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kgdb_input_lost++;
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}
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}
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static void
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zs_kgdb_txint(cs)
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register struct zs_chanstate *cs;
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{
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register int rr0;
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rr0 = zs_read_csr(cs);
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zs_write_csr(cs, ZSWR0_RESET_TXINT);
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}
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static void
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zs_kgdb_stint(cs)
|
||||
register struct zs_chanstate *cs;
|
||||
{
|
||||
register int rr0;
|
||||
|
||||
rr0 = zs_read_csr(cs);
|
||||
zs_write_csr(cs, ZSWR0_RESET_STATUS);
|
||||
|
||||
/*
|
||||
* Check here for console break, so that we can abort
|
||||
* even when interrupts are locking up the machine.
|
||||
*/
|
||||
if (rr0 & ZSRR0_BREAK) {
|
||||
zskgdb(cs);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
zs_kgdb_softint(cs)
|
||||
struct zs_chanstate *cs;
|
||||
{
|
||||
printf("zs_kgdb_softint?\n");
|
||||
}
|
||||
|
||||
struct zsops zsops_kgdb = {
|
||||
zs_kgdb_rxint, /* receive char available */
|
||||
zs_kgdb_stint, /* external/status */
|
||||
zs_kgdb_txint, /* xmit buffer empty */
|
||||
zs_kgdb_softint, /* process software interrupt */
|
||||
};
|
||||
|
|
@ -0,0 +1,122 @@
|
|||
/* $NetBSD: kgdb_machdep.c,v 1.1 1998/05/05 06:48:52 scottr Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1990, 1993
|
||||
* The Regents of the University of California. All rights reserved.
|
||||
*
|
||||
* This software was developed by the Computer Systems Engineering group
|
||||
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
||||
* contributed to Berkeley.
|
||||
*
|
||||
* All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Lawrence Berkeley Laboratories.
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
||||
*
|
||||
* @(#)kgdb_stub.c 8.4 (Berkeley) 1/12/94
|
||||
*/
|
||||
|
||||
/*
|
||||
* Machine-dependent part of the KGDB remote "stub"
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kgdb.h>
|
||||
|
||||
#include <vm/vm.h>
|
||||
|
||||
#include <machine/db_machdep.h>
|
||||
#include <machine/pmap.h>
|
||||
#include <machine/pte.h>
|
||||
|
||||
#define INVOKE_KGDB() __asm __volatile("trap #15")
|
||||
|
||||
/*
|
||||
* Determine if the memory at va..(va+len) is valid.
|
||||
*/
|
||||
int
|
||||
kgdb_acc(va, ulen)
|
||||
vm_offset_t va;
|
||||
size_t ulen;
|
||||
{
|
||||
int len, pgoff;
|
||||
pt_entry_t *pte;
|
||||
|
||||
len = (int)ulen;
|
||||
pgoff = va & PGOFSET;
|
||||
va -= pgoff;
|
||||
len += pgoff;
|
||||
|
||||
while (len > 0) {
|
||||
pte = kvtopte(va);
|
||||
if ((*pte & PG_V) == 0)
|
||||
return (0);
|
||||
va += NBPG;
|
||||
len -= NBPG;
|
||||
}
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
/*
|
||||
* Trap into kgdb to wait for debugger to connect,
|
||||
* noting on the console why nothing else is going on.
|
||||
*/
|
||||
void
|
||||
kgdb_connect(verbose)
|
||||
int verbose;
|
||||
{
|
||||
if (kgdb_dev < 0)
|
||||
return;
|
||||
|
||||
if (verbose)
|
||||
printf("kgdb waiting...");
|
||||
|
||||
INVOKE_KGDB();
|
||||
|
||||
if (verbose)
|
||||
printf("connected.\n");
|
||||
|
||||
kgdb_debug_panic = 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Decide what to do on panic.
|
||||
*/
|
||||
void
|
||||
kgdb_panic()
|
||||
{
|
||||
if (kgdb_dev >= 0 && kgdb_debug_panic) {
|
||||
printf("entering kgdb\n");
|
||||
INVOKE_KGDB();
|
||||
}
|
||||
}
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: machdep.c,v 1.194 1998/05/01 03:53:47 scottr Exp $ */
|
||||
/* $NetBSD: machdep.c,v 1.195 1998/05/05 06:48:52 scottr Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1988 University of Utah.
|
||||
|
|
@ -102,6 +102,9 @@
|
|||
#include <sys/mount.h>
|
||||
#include <sys/extent.h>
|
||||
#include <sys/syscallargs.h>
|
||||
#ifdef KGDB
|
||||
#include <sys/kgdb.h>
|
||||
#endif
|
||||
#ifdef SYSVMSG
|
||||
#include <sys/msg.h>
|
||||
#endif
|
||||
|
|
@ -324,6 +327,10 @@ consinit(void)
|
|||
|
||||
if (!init) {
|
||||
cninit();
|
||||
init = 1;
|
||||
} else {
|
||||
mac68k_calibrate_delay();
|
||||
|
||||
#if NZSC > 0 && defined(KGDB)
|
||||
zs_kgdb_init();
|
||||
#endif
|
||||
|
|
@ -333,9 +340,20 @@ consinit(void)
|
|||
*/
|
||||
ddb_init();
|
||||
#endif
|
||||
init = 1;
|
||||
} else
|
||||
mac68k_calibrate_delay();
|
||||
|
||||
if (boothowto & RB_KDB) {
|
||||
#ifdef KGDB
|
||||
/* XXX - Ask on console for kgdb_dev? */
|
||||
/* Note: this will just return if kgdb_dev==NODEV */
|
||||
kgdb_connect(1);
|
||||
#else /* KGDB */
|
||||
#ifdef DDB
|
||||
/* Enter DDB. We don't have a monitor PROM. */
|
||||
Debugger();
|
||||
#endif /* DDB */
|
||||
#endif /* KGDB */
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#define CURRENTBOOTERVER 111
|
||||
|
|
@ -2354,7 +2372,7 @@ setmachdep()
|
|||
}
|
||||
|
||||
/*
|
||||
* Set `internal' framebuffer location and length, if we know
|
||||
* Set on-board video RAM location and length, if we know
|
||||
* what they are.
|
||||
*/
|
||||
for (i = 0; intvid_info[i].machineid; i++) {
|
||||
|
|
|
|||
Loading…
Reference in New Issue