626 lines
11 KiB
C
626 lines
11 KiB
C
/*
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* Copyright (c) 1995 Andrew McRae. 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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$Id: file.c,v 1.13 1997/11/19 02:31:40 nate Exp $";
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#endif /* not lint */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include "cardd.h"
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static FILE *in;
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static int pushc, pusht;
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static int lineno;
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static char *filename;
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static char *keys[] = {
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"__EOF__", /* 1 */
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"io", /* 2 */
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"irq", /* 3 */
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"memory", /* 4 */
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"card", /* 5 */
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"device", /* 6 */
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"config", /* 7 */
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"reset", /* 8 */
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"ether", /* 9 */
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"insert", /* 10 */
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"remove", /* 11 */
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"iosize", /* 12 */
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"memsize", /* 13 */
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0
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};
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struct flags {
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char *name;
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int mask;
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};
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static void parsefile(void);
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static char *getline(void);
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static char *next_tok(void);
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static int num_tok(void);
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static void error(char *);
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static int keyword(char *);
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static int irq_tok(int);
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static struct allocblk *ioblk_tok(int);
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static struct allocblk *memblk_tok(int);
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static struct driver *new_driver(char *);
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static void addcmd(struct cmd **);
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static void parse_card(void);
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/*
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* Read a file and parse the pcmcia configuration data.
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* After parsing, verify the links.
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*/
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void
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readfile(char *name)
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{
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struct card *cp;
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in = fopen(name, "r");
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if (in == 0) {
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logerr(name);
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die("readfile");
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}
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parsefile();
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for (cp = cards; cp; cp = cp->next) {
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if (cp->config == 0)
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logmsg("warning: card %s(%s) has no valid configuration\n",
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cp->manuf, cp->version);
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}
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}
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static void
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parsefile(void)
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{
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int i;
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struct allocblk *bp;
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pushc = 0;
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lineno = 1;
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for (;;)
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switch (keyword(next_tok())) {
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case 1:
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/* EOF */
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return;
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case 2:
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/* reserved I/O blocks */
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while ((bp = ioblk_tok(0)) != 0) {
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if (bp->size == 0 || bp->addr == 0) {
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free(bp);
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continue;
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}
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bit_nset(io_avail, bp->addr,
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bp->addr + bp->size - 1);
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bp->next = pool_ioblks;
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pool_ioblks = bp;
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}
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pusht = 1;
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break;
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case 3:
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/* reserved irqs */
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while ((i = irq_tok(0)) > 0)
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pool_irq[i] = 1;
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pusht = 1;
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break;
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case 4:
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/* reserved memory blocks. */
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while ((bp = memblk_tok(0)) != 0) {
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if (bp->size == 0 || bp->addr == 0) {
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free(bp);
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continue;
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}
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bit_nset(mem_avail, MEM2BIT(bp->addr),
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MEM2BIT(bp->addr + bp->size) - 1);
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bp->next = pool_mem;
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pool_mem = bp;
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}
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pusht = 1;
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break;
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case 5:
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/* Card definition. */
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parse_card();
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break;
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default:
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error("syntax error");
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pusht = 0;
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break;
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}
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}
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/*
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* Parse a card definition.
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*/
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static void
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parse_card(void)
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{
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char *man, *vers;
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struct card *cp;
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int i;
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struct card_config *confp, *lastp;
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man = newstr(next_tok());
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vers = newstr(next_tok());
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cp = xmalloc(sizeof(*cp));
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cp->manuf = man;
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cp->version = vers;
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cp->reset_time = 50;
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cp->next = cards;
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cards = cp;
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for (;;) {
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switch (keyword(next_tok())) {
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case 7:
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/* config */
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i = num_tok();
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if (i == -1) {
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error("illegal card config index");
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break;
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}
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confp = xmalloc(sizeof(*confp));
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man = next_tok();
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confp->driver = new_driver(man);
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confp->irq = irq_tok(1);
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confp->flags = num_tok();
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if (confp->flags == -1) {
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pusht = 1;
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confp->flags = 0;
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}
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if (confp->irq < 0 || confp->irq > 15) {
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error("illegal card IRQ value");
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break;
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}
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confp->index = i & 0x3F;
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/*
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* If no valid driver for this config, then do not save
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* this configuration entry.
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*/
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if (confp->driver) {
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if (cp->config == 0)
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cp->config = confp;
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else {
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for (lastp = cp->config; lastp->next;
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lastp = lastp->next);
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lastp->next = confp;
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}
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} else
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free(confp);
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break;
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case 8:
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/* reset */
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i = num_tok();
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if (i == -1) {
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error("illegal card reset time");
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break;
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}
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cp->reset_time = i;
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break;
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case 9:
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/* ether */
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cp->ether = num_tok();
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if (cp->ether == -1) {
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error("illegal ether address offset");
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cp->ether = 0;
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}
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break;
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case 10:
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/* insert */
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addcmd(&cp->insert);
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break;
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case 11:
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/* remove */
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addcmd(&cp->remove);
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break;
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default:
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pusht = 1;
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return;
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}
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}
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}
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/*
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* Generate a new driver structure. If one exists, use
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* that one after confirming the correct class.
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*/
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static struct driver *
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new_driver(char *name)
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{
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struct driver *drvp;
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char *p;
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for (drvp = drivers; drvp; drvp = drvp->next)
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if (strcmp(drvp->name, name) == 0)
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return (drvp);
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drvp = xmalloc(sizeof(*drvp));
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drvp->next = drivers;
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drivers = drvp;
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drvp->name = newstr(name);
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drvp->kernel = newstr(name);
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p = drvp->kernel;
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while (*p++)
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if (*p >= '0' && *p <= '9') {
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drvp->unit = atoi(p);
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*p = 0;
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break;
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}
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#ifdef DEBUG
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printf("Drv %s%d created\n", drvp->kernel, drvp->unit);
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#endif
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return (drvp);
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}
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/*
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* Parse one I/O block.
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*/
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static struct allocblk *
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ioblk_tok(int force)
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{
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struct allocblk *io;
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int i, j;
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if ((i = num_tok()) >= 0) {
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if (strcmp("-", next_tok()) || (j = num_tok()) < 0 || j < i) {
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error("I/O block format error");
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return (0);
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}
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io = xmalloc(sizeof(*io));
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io->addr = i;
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io->size = j - i + 1;
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if (j > IOPORTS) {
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error("I/O port out of range");
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if (force) {
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free(io);
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io = 0;
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} else
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io->addr = io->size = 0;
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}
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return (io);
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}
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if (force)
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error("illegal or missing I/O block spec");
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return (0);
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}
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/*
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* Parse a memory block.
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*/
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static struct allocblk *
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memblk_tok(int force)
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{
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struct allocblk *mem;
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int i, j;
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if ((i = num_tok()) >= 0)
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if ((j = num_tok()) < 0)
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error("illegal memory block");
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else {
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mem = xmalloc(sizeof(*mem));
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mem->addr = i & ~(MEMUNIT - 1);
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mem->size = (j + MEMUNIT - 1) & ~(MEMUNIT - 1);
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if (i < MEMSTART || (i + j) > MEMEND) {
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error("memory address out of range");
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if (force) {
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free(mem);
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mem = 0;
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} else
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mem->addr = mem->size = 0;
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}
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return (mem);
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}
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if (force)
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error("illegal or missing memory block spec");
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return (0);
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}
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/*
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* IRQ token. Must be number > 0 && < 16.
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* If force is set, IRQ must exist, and can also be '?'.
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*/
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static int
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irq_tok(int force)
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{
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int i;
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if (strcmp("?", next_tok()) == 0 && force)
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return (0);
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pusht = 1;
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i = num_tok();
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if (i > 0 && i < 16)
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return (i);
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if (force)
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error("illegal IRQ value");
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return (-1);
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}
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/*
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* search the table for a match.
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*/
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static int
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keyword(char *str)
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{
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char **s;
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int i = 1;
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for (s = keys; *s; s++, i++)
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if (strcmp(*s, str) == 0)
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return (i);
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return (0);
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}
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/*
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* addcmd - Append the command line to the list of
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* commands.
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*/
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static void
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addcmd(struct cmd **cp)
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{
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struct cmd *ncp;
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char *s = getline();
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if (*s) {
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ncp = xmalloc(sizeof(*ncp));
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ncp->line = s;
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while (*cp)
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cp = &(*cp)->next;
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*cp = ncp;
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}
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}
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static void
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error(char *msg)
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{
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pusht = 1;
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logmsg("%s: %s at line %d, near %s\n",
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filename, msg, lineno, next_tok());
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pusht = 1;
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}
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static int last_char;
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static int
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get(void)
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{
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int c;
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if (pushc)
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c = pushc;
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else
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c = getc(in);
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pushc = 0;
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while (c == '\\') {
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c = getc(in);
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switch (c) {
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case '#':
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return (last_char = c);
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case '\n':
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lineno++;
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c = getc(in);
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continue;
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}
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pushc = c;
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return ('\\');
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}
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if (c == '\n')
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lineno++;
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if (c == '#') {
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while (get() != '\n');
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return (last_char = '\n');
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}
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return (last_char = c);
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}
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/*
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* num_tok - expecting a number token. If not a number,
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* return -1.
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* Handles octal (who uses octal anymore?)
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* hex
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* decimal
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* Looks for a 'k' at the end of decimal numbers
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* and multiplies by 1024.
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*/
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static int
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num_tok(void)
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{
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char *s = next_tok(), c;
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int val = 0, base;
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base = 10;
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c = *s++;
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if (c == '0') {
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base = 8;
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c = *s++;
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if (c == '\0') return 0;
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else if (c == 'x' || c == 'X') {
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c = *s++;
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base = 16;
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}
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}
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do {
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switch (c) {
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case 'k':
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case 'K':
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if (val && base == 10 && *s == 0)
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return (val * 1024);
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return (-1);
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default:
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return (-1);
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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val = val * base + c - '0';
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break;
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case '8':
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case '9':
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if (base == 8)
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return (-1);
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else
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val = val * base + c - '0';
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break;
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case 'a':
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case 'b':
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case 'c':
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case 'd':
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case 'e':
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case 'f':
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if (base == 16)
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val = val * base + c - 'a' + 10;
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else
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return (-1);
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break;
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case 'A':
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case 'B':
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case 'C':
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case 'D':
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case 'E':
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case 'F':
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if (base == 16)
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val = val * base + c - 'A' + 10;
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else
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return (-1);
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break;
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}
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} while ((c = *s++) != 0);
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return (val);
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}
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static char *_next_tok(void);
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static char *
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next_tok(void)
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{
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char *s = _next_tok();
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#if 0
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printf("Tok = %s\n", s);
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#endif
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return (s);
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}
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/*
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* get one token. Handles string quoting etc.
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*/
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static char *
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_next_tok(void)
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{
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static char buf[1024];
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char *p = buf, instr = 0;
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int c;
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if (pusht) {
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pusht = 0;
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return (buf);
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}
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for (;;) {
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c = get();
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switch (c) {
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default:
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*p++ = c;
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break;
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case '"':
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if (instr) {
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*p++ = 0;
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return (buf);
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}
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instr = 1;
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break;
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case '\n':
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if (instr) {
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error("unterminated string");
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break;
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}
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case ' ':
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case '\t':
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/* Eat whitespace unless in a string. */
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if (!instr) {
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if (p != buf) {
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*p++ = 0;
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return (buf);
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}
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} else
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*p++ = c;
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break;
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case '-':
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case '?':
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case '*':
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/* Special characters that are tokens on their own. */
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if (instr)
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*p++ = c;
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else {
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if (p != buf)
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pushc = c;
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else
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*p++ = c;
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*p++ = 0;
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return (buf);
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}
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break;
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case EOF:
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if (p != buf) {
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*p++ = 0;
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return (buf);
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}
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strcpy(buf, "__EOF__");
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return (buf);
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}
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}
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}
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/*
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* get the rest of the line. If the
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* last character scanned was a newline, then
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* return an empty line. If this isn't checked, then
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* a getline may incorrectly return the next line.
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*/
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static char *
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getline(void)
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{
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char buf[1024], *p = buf;
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int c, i = 0;
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|
|
if (last_char == '\n')
|
|
return (newstr(""));
|
|
do {
|
|
c = get();
|
|
} while (c == ' ' || c == '\t');
|
|
for (; c != '\n' && c != EOF; c = get())
|
|
if (i++ < sizeof(buf) - 10)
|
|
*p++ = c;
|
|
*p = 0;
|
|
return (newstr(buf));
|
|
}
|