549 lines
11 KiB
Plaintext
549 lines
11 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 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 MACHINE
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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 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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#define ns(s) strdup(s)
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static struct device *connect __P((char *, int));
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static struct device *huhcon __P((char *));
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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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MACHINE 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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= { cur.d_dk = 1; cur.d_type = DEVICE; } |
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CONTROLLER Dev_name Dev_info
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= { cur.d_type = CONTROLLER; } |
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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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if (eq($2, "scbus"))
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seen_scbus = 1;
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cur.d_unit = $3;
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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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/* 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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if (eq(cur.d_name, "mba") || eq(cur.d_name, "uba")) {
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(void) snprintf(errbuf, sizeof(errbuf),
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"%s must be connected to a nexus", cur.d_name);
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yyerror(errbuf);
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}
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cur.d_conn = connect($2, $3);
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} |
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AT NEXUS NUMBER
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= { cur.d_conn = TO_NEXUS; };
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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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= {
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if (cur.d_conn != 0 && cur.d_conn->d_type == CONTROLLER)
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cur.d_slave = $2;
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else
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yyerror("can't specify a bus to something "
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"other than a controller");
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} |
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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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* 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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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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* 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 struct device *
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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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return (huhcon(dev));
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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 != CONTROLLER) {
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(void) snprintf(errbuf, sizeof(errbuf),
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"%s connected to non-controller", dev);
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yyerror(errbuf);
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return (0);
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}
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return (dp);
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}
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(void) snprintf(errbuf, sizeof(errbuf), "%s %d not defined", dev, num);
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yyerror(errbuf);
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return (0);
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}
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/*
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* connect to an unspecific thing
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*/
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static struct device *
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huhcon(dev)
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register char *dev;
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{
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register struct device *dp, *dcp;
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struct device rdev;
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int oldtype;
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/*
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* First make certain that there are some of these to wildcard on
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*/
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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), "no %s's to wildcard",
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dev);
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yyerror(errbuf);
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return (0);
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}
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oldtype = dp->d_type;
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dcp = dp->d_conn;
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/*
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* Now see if there is already a wildcard entry for this device
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* (e.g. Search for a "uba ?")
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*/
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for (; dp != 0; dp = dp->d_next)
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if (eq(dev, dp->d_name) && dp->d_unit == -1)
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break;
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/*
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* If there isn't, make one because everything needs to be connected
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* to something.
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*/
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if (dp == 0) {
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dp = &rdev;
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init_dev(dp);
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dp->d_unit = QUES;
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dp->d_name = ns(dev);
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dp->d_type = oldtype;
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newdev(dp);
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dp = curp;
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/*
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* Connect it to the same thing that other similar things are
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* connected to, but make sure it is a wildcard unit
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* (e.g. up connected to sc ?, here we make connect sc? to a
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* uba?). If other things like this are on the NEXUS or
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* if they aren't connected to anything, then make the same
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* connection, else call ourself to connect to another
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* unspecific device.
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*/
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if (dcp == TO_NEXUS || dcp == 0)
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dp->d_conn = dcp;
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else
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dp->d_conn = connect(dcp->d_name, QUES);
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}
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return (dp);
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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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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 = dp->d_dk = 0;
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dp->d_slave = 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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}
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