4dc1a88de3
- redo the "at" configuration system so that it just syntax checks to make sure the device you're configuring something "at" appears to exist. Nuke a bunch of complexity that was responsible for creating "clones" of wildcard devices and some wierd stuff in a few places including the scbus config tables etc. - merge "controller" and "device" - there is no difference as far as the kernel is concernend, it's just something there to make life difficult for config file writers. "controller" is now an alias for "device". - emit full scsi config into the resource tables. We could trivially change cam to use that rather than it's own "special" table for wiring and static configuration. ATA could use this too for static wiring. - try and emulate some of the quirks of the old system where it made sense. Some were too strange though and I'd be very suprised if they were features and not outright bugs. nexus handling is still strange. One thing in particular is that some of the wierd entries in the newbus devtables is now gone as it was a quirk side effect of the wildcard/question-mark cloning above. GENERIC and LINT still build etc.
506 lines
9.9 KiB
Plaintext
506 lines
9.9 KiB
Plaintext
%union {
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char *str;
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int val;
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struct file_list *file;
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}
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%token ANY
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%token ARCH
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%token AT
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%token BUS
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%token COMMA
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%token CONFIG
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%token CONFLICTS
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%token CONTROLLER
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%token CPU
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%token DEVICE
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%token DISABLE
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%token DISK
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%token DRIVE
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%token DRQ
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%token EQUALS
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%token FLAGS
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%token IDENT
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%token IOMEM
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%token IOSIZ
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%token IRQ
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%token MAXUSERS
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%token MINUS
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%token NEXUS
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%token OPTIONS
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%token MAKEOPTIONS
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%token PORT
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%token PSEUDO_DEVICE
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%token SEMICOLON
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%token TAPE
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%token TARGET
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%token TTY
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%token UNIT
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%token VECTOR
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%token <str> ID
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%token <val> NUMBER
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%token <val> FPNUMBER
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%type <str> Save_id
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%type <str> Opt_value
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%type <str> Dev
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%type <str> device_name
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%{
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/*
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. 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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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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* @(#)config.y 8.1 (Berkeley) 6/6/93
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* $FreeBSD$
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*/
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#include <ctype.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include "config.h"
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static struct device cur;
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static struct device *curp = 0;
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struct device *dtab;
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char *ident;
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int yyline;
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struct file_list *ftab;
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char errbuf[80];
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int maxusers;
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int seen_scbus;
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int warned_controller;
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#define ns(s) strdup(s)
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static int connect __P((char *, int));
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static void yyerror __P((char *s));
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%}
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%%
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Configuration:
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Many_specs
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;
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Many_specs:
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Many_specs Spec
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/* lambda */
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;
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Spec:
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Device_spec SEMICOLON
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= { newdev(&cur); } |
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Config_spec SEMICOLON
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SEMICOLON
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error SEMICOLON
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;
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Config_spec:
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ARCH Save_id
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= {
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if (!strcmp($2, "i386")) {
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machine = MACHINE_I386;
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machinename = "i386";
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} else if (!strcmp($2, "pc98")) {
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machine = MACHINE_PC98;
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machinename = "pc98";
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} else if (!strcmp($2, "alpha")) {
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machine = MACHINE_ALPHA;
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machinename = "alpha";
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} else
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yyerror("Unknown machine type");
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} |
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CPU Save_id
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= {
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struct cputype *cp =
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(struct cputype *)malloc(sizeof (struct cputype));
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memset(cp, 0, sizeof(*cp));
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cp->cpu_name = $2;
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cp->cpu_next = cputype;
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cputype = cp;
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} |
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OPTIONS Opt_list
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MAKEOPTIONS Mkopt_list
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IDENT ID
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= { ident = $2; } |
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System_spec
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MAXUSERS NUMBER
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= { maxusers = $2; };
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System_spec:
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CONFIG System_id System_parameter_list
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= { warnx("line %d: root/dump/swap specifications obsolete", yyline);}
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CONFIG System_id
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;
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System_id:
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Save_id
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= {
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struct opt *op = (struct opt *)malloc(sizeof (struct opt));
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memset(op, 0, sizeof(*op));
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op->op_name = ns("KERNEL");
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op->op_ownfile = 0;
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op->op_next = mkopt;
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op->op_value = $1;
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op->op_line = yyline + 1;
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mkopt = op;
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};
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System_parameter_list:
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System_parameter_list ID
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| ID
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;
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device_name:
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Save_id
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= { $$ = $1; }
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| Save_id NUMBER
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= {
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char buf[80];
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(void) snprintf(buf, sizeof(buf), "%s%d", $1, $2);
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$$ = ns(buf); free($1);
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}
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| Save_id NUMBER ID
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= {
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char buf[80];
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(void) snprintf(buf, sizeof(buf), "%s%d%s", $1, $2, $3);
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$$ = ns(buf); free($1);
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}
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| Save_id NUMBER ID NUMBER
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= {
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char buf[80];
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(void) snprintf(buf, sizeof(buf), "%s%d%s%d",
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$1, $2, $3, $4);
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$$ = ns(buf); free($1);
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}
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| Save_id NUMBER ID NUMBER ID
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= {
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char buf[80];
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(void) snprintf(buf, sizeof(buf), "%s%d%s%d%s",
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$1, $2, $3, $4, $5);
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$$ = ns(buf); free($1);
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}
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;
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Opt_list:
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Opt_list COMMA Option
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Option
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;
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Option:
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Save_id
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= {
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struct opt *op = (struct opt *)malloc(sizeof (struct opt));
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char *s;
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memset(op, 0, sizeof(*op));
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op->op_name = $1;
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op->op_next = opt;
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op->op_value = 0;
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/*
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* op->op_line is 1-based; yyline is 0-based but is now 1
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* larger than when `Save_id' was lexed.
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*/
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op->op_line = yyline;
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opt = op;
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if ((s = strchr(op->op_name, '='))) {
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warnx("line %d: The `=' in options should not be quoted", yyline);
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*s = '\0';
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op->op_value = ns(s + 1);
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}
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} |
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Save_id EQUALS Opt_value
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= {
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struct opt *op = (struct opt *)malloc(sizeof (struct opt));
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memset(op, 0, sizeof(*op));
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op->op_name = $1;
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op->op_next = opt;
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op->op_value = $3;
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op->op_line = yyline + 1;
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opt = op;
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} ;
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Opt_value:
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ID
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= { $$ = $1; } |
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NUMBER
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= {
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char buf[80];
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(void) snprintf(buf, sizeof(buf), "%d", $1);
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$$ = ns(buf);
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} ;
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Save_id:
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ID
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= { $$ = $1; }
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;
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Mkopt_list:
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Mkopt_list COMMA Mkoption
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Mkoption
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;
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Mkoption:
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Save_id EQUALS Opt_value
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= {
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struct opt *op = (struct opt *)malloc(sizeof (struct opt));
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memset(op, 0, sizeof(*op));
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op->op_name = $1;
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op->op_ownfile = 0; /* for now */
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op->op_next = mkopt;
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op->op_value = $3;
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op->op_line = yyline + 1;
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mkopt = op;
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} ;
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Dev:
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ID
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= { $$ = $1; }
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;
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Device_spec:
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DEVICE Dev_name Dev_info
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= { cur.d_type = DEVICE; } |
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DISK Dev_name Dev_info
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= {
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warnx("line %d: Obsolete keyword 'disk' found - use 'device'", yyline);
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cur.d_type = DEVICE;
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} |
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TAPE Dev_name Dev_info
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= {
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warnx("line %d: Obsolete keyword 'tape' found - use 'device'", yyline);
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cur.d_type = DEVICE;
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} |
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CONTROLLER Dev_name Dev_info
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= {
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if (warned_controller < 3)
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warnx("line %d: Obsolete keyword 'controller' found - use 'device'", yyline);
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warned_controller++;
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cur.d_type = DEVICE;
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} |
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PSEUDO_DEVICE Init_dev Dev
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= {
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cur.d_name = $3;
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cur.d_type = PSEUDO_DEVICE;
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} |
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PSEUDO_DEVICE Init_dev Dev NUMBER
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= {
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cur.d_name = $3;
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cur.d_type = PSEUDO_DEVICE;
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cur.d_count = $4;
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} ;
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Dev_name:
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Init_dev Dev NUMBER
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= {
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cur.d_name = $2;
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cur.d_unit = $3;
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if (eq($2, "scbus"))
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seen_scbus = 1;
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};
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Init_dev:
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/* lambda */
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= { init_dev(&cur); };
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Dev_info:
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Con_info Info_list
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|
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/* lambda */
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;
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Con_info:
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AT Dev NUMBER
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= {
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connect($2, $3);
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cur.d_conn = $2;
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cur.d_connunit = $3;
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} |
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AT NEXUS NUMBER
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= {
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cur.d_conn = "nexus";
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cur.d_connunit = 0;
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};
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Info_list:
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Info_list Info
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/* lambda */
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;
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Info:
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BUS NUMBER /* controller scbus1 at ahc0 bus 1 - twin channel */
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= { cur.d_bus = $2; } |
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TARGET NUMBER
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= { cur.d_target = $2; } |
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UNIT NUMBER
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= { cur.d_lun = $2; } |
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DRIVE NUMBER
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= { cur.d_drive = $2; } |
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IRQ NUMBER
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= { cur.d_irq = $2; } |
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DRQ NUMBER
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= { cur.d_drq = $2; } |
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IOMEM NUMBER
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= { cur.d_maddr = $2; } |
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IOSIZ NUMBER
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= { cur.d_msize = $2; } |
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PORT device_name
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= { cur.d_port = $2; } |
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PORT NUMBER
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= { cur.d_portn = $2; } |
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FLAGS NUMBER
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= { cur.d_flags = $2; } |
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DISABLE
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= { cur.d_disabled = 1; } |
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CONFLICTS
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= { cur.d_conflicts = 1; };
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%%
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static void
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yyerror(s)
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char *s;
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{
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warnx("line %d: %s", yyline + 1, s);
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}
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|
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/*
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* add a device to the list of devices
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*/
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static void
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newdev(dp)
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register struct device *dp;
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{
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register struct device *np, *xp;
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|
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if (dp->d_unit >= 0) {
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for (xp = dtab; xp != 0; xp = xp->d_next) {
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if ((xp->d_unit == dp->d_unit) &&
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eq(xp->d_name, dp->d_name)) {
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warnx("line %d: already seen device %s%d",
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yyline, xp->d_name, xp->d_unit);
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}
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}
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}
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np = (struct device *) malloc(sizeof *np);
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memset(np, 0, sizeof(*np));
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*np = *dp;
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np->d_next = 0;
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if (curp == 0)
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dtab = np;
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else
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curp->d_next = np;
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curp = np;
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}
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|
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/*
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* find the pointer to connect to the given device and number.
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* returns 0 if no such device and prints an error message
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*/
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static int
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connect(dev, num)
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register char *dev;
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register int num;
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{
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register struct device *dp;
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if (num == QUES) {
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for (dp = dtab; dp != 0; dp = dp->d_next)
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if (eq(dp->d_name, dev))
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break;
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if (dp == 0) {
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(void) snprintf(errbuf, sizeof(errbuf),
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"no %s's to wildcard", dev);
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yyerror(errbuf);
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return (0);
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}
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return (1);
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}
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for (dp = dtab; dp != 0; dp = dp->d_next) {
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if ((num != dp->d_unit) || !eq(dev, dp->d_name))
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continue;
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if (dp->d_type != DEVICE) {
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(void) snprintf(errbuf, sizeof(errbuf),
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"%s connected to non-device", dev);
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|
yyerror(errbuf);
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return (0);
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}
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return (1);
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}
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(void) snprintf(errbuf, sizeof(errbuf), "%s %d not defined", dev, num);
|
|
yyerror(errbuf);
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return (0);
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}
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|
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void
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init_dev(dp)
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|
register struct device *dp;
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{
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|
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dp->d_name = "OHNO!!!";
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dp->d_type = DEVICE;
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dp->d_conn = 0;
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dp->d_conflicts = 0;
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dp->d_disabled = 0;
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|
dp->d_flags = 0;
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dp->d_bus = dp->d_lun = dp->d_target = dp->d_drive = dp->d_unit = \
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dp->d_count = UNKNOWN;
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|
dp->d_port = (char *)0;
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|
dp->d_portn = -1;
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|
dp->d_irq = -1;
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|
dp->d_drq = -1;
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|
dp->d_maddr = 0;
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dp->d_msize = 0;
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|
}
|