mirror of
https://git.FreeBSD.org/src.git
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23667f089d
Commit my version of style(9) pass over the firewire code. Now that other people have started changing the code carrying this is as a local patch is not longer a viable option. MFC after: 1 month
629 lines
14 KiB
C
629 lines
14 KiB
C
/*-
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* Copyright (c) 2002-2003
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* Hidetoshi Shimokawa. 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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*
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* This product includes software developed by Hidetoshi Shimokawa.
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*
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* 4. Neither the name of the author 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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#ifdef __FreeBSD__
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#endif
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#include <sys/param.h>
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#ifdef _BOOT
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#include <stand.h>
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#include <bootstrap.h>
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#else
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#if defined(_KERNEL) || defined(TEST)
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#include <sys/queue.h>
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#endif
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#ifdef _KERNEL
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#else
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#include <netinet/in.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <err.h>
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#include <stdlib.h>
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#include <string.h>
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#endif
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#endif
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#include <dev/firewire/firewire.h>
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#include <dev/firewire/iec13213.h>
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#define MAX_ROM (1024 - sizeof(uint32_t) * 5)
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#define CROM_END(cc) ((vm_offset_t)(cc)->stack[0].dir + MAX_ROM - 1)
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void
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crom_init_context(struct crom_context *cc, uint32_t *p)
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{
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struct csrhdr *hdr;
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hdr = (struct csrhdr *)p;
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if (hdr->info_len <= 1) {
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/* minimum or invalid ROM */
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cc->depth = -1;
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return;
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}
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p += 1 + hdr->info_len;
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/* check size of root directory */
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if (((struct csrdirectory *)p)->crc_len == 0) {
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cc->depth = -1;
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return;
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}
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cc->depth = 0;
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cc->stack[0].dir = (struct csrdirectory *)p;
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cc->stack[0].index = 0;
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}
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struct csrreg *
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crom_get(struct crom_context *cc)
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{
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struct crom_ptr *ptr;
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ptr = &cc->stack[cc->depth];
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return (&ptr->dir->entry[ptr->index]);
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}
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void
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crom_next(struct crom_context *cc)
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{
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struct crom_ptr *ptr;
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struct csrreg *reg;
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if (cc->depth < 0)
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return;
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reg = crom_get(cc);
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if ((reg->key & CSRTYPE_MASK) == CSRTYPE_D) {
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if (cc->depth >= CROM_MAX_DEPTH) {
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printf("crom_next: too deep\n");
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goto again;
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}
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cc->depth++;
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ptr = &cc->stack[cc->depth];
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ptr->dir = (struct csrdirectory *) (reg + reg->val);
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ptr->index = 0;
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goto check;
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}
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again:
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ptr = &cc->stack[cc->depth];
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ptr->index++;
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check:
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if (ptr->index < ptr->dir->crc_len &&
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(vm_offset_t)crom_get(cc) <= CROM_END(cc))
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return;
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if (ptr->index < ptr->dir->crc_len)
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printf("crom_next: bound check failed\n");
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if (cc->depth > 0) {
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cc->depth--;
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goto again;
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}
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/* no more data */
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cc->depth = -1;
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}
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struct csrreg *
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crom_search_key(struct crom_context *cc, uint8_t key)
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{
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struct csrreg *reg;
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while (cc->depth >= 0) {
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reg = crom_get(cc);
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if (reg->key == key)
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return reg;
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crom_next(cc);
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}
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return NULL;
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}
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int
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crom_has_specver(uint32_t *p, uint32_t spec, uint32_t ver)
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{
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struct csrreg *reg;
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struct crom_context c, *cc;
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int state = 0;
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cc = &c;
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crom_init_context(cc, p);
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while (cc->depth >= 0) {
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reg = crom_get(cc);
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if (state == 0) {
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if (reg->key == CSRKEY_SPEC && reg->val == spec)
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state = 1;
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else
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state = 0;
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} else {
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if (reg->key == CSRKEY_VER && reg->val == ver)
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return 1;
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else
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state = 0;
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}
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crom_next(cc);
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}
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return 0;
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}
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void
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crom_parse_text(struct crom_context *cc, char *buf, int len)
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{
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struct csrreg *reg;
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struct csrtext *textleaf;
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uint32_t *bp;
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int i, qlen;
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static char *nullstr = "(null)";
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if (cc->depth < 0)
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return;
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reg = crom_get(cc);
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if (reg->key != CROM_TEXTLEAF ||
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(vm_offset_t)(reg + reg->val) > CROM_END(cc)) {
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strncpy(buf, nullstr, len);
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return;
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}
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textleaf = (struct csrtext *)(reg + reg->val);
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if ((vm_offset_t)textleaf + textleaf->crc_len > CROM_END(cc)) {
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strncpy(buf, nullstr, len);
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return;
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}
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/* XXX should check spec and type */
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bp = (uint32_t *)&buf[0];
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qlen = textleaf->crc_len - 2;
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if (len < qlen * 4)
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qlen = len/4;
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for (i = 0; i < qlen; i++)
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*bp++ = ntohl(textleaf->text[i]);
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/* make sure to terminate the string */
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if (len <= qlen * 4)
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buf[len - 1] = 0;
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else
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buf[qlen * 4] = 0;
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}
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uint16_t
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crom_crc(uint32_t *ptr, int len)
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{
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int i, shift;
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uint32_t data, sum, crc = 0;
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for (i = 0; i < len; i++) {
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data = ptr[i];
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for (shift = 28; shift >= 0; shift -= 4) {
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sum = ((crc >> 12) ^ (data >> shift)) & 0xf;
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crc = (crc << 4) ^ (sum << 12) ^ (sum << 5) ^ sum;
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}
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crc &= 0xffff;
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}
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return ((uint16_t) crc);
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}
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#if !defined(_KERNEL) && !defined(_BOOT)
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static void
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crom_desc_specver(uint32_t spec, uint32_t ver, char *buf, int len)
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{
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char *s = NULL;
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if (spec == CSRVAL_ANSIT10 || spec == 0) {
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switch (ver) {
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case CSRVAL_T10SBP2:
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s = "SBP-2";
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break;
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default:
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if (spec != 0)
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s = "unknown ANSIT10";
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}
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}
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if (spec == CSRVAL_1394TA || spec == 0) {
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switch (ver) {
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case CSR_PROTAVC:
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s = "AV/C";
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break;
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case CSR_PROTCAL:
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s = "CAL";
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break;
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case CSR_PROTEHS:
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s = "EHS";
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break;
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case CSR_PROTHAVI:
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s = "HAVi";
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break;
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case CSR_PROTCAM104:
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s = "1394 Cam 1.04";
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break;
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case CSR_PROTCAM120:
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s = "1394 Cam 1.20";
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break;
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case CSR_PROTCAM130:
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s = "1394 Cam 1.30";
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break;
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case CSR_PROTDPP:
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s = "1394 Direct print";
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break;
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case CSR_PROTIICP:
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s = "Industrial & Instrument";
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break;
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default:
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if (spec != 0)
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s = "unknown 1394TA";
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}
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}
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if (s != NULL)
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snprintf(buf, len, "%s", s);
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}
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char *
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crom_desc(struct crom_context *cc, char *buf, int len)
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{
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struct csrreg *reg;
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struct csrdirectory *dir;
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char *desc;
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uint16_t crc;
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reg = crom_get(cc);
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switch (reg->key & CSRTYPE_MASK) {
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case CSRTYPE_I:
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#if 0
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len -= snprintf(buf, len, "%d", reg->val);
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buf += strlen(buf);
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#else
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*buf = '\0';
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#endif
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break;
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case CSRTYPE_C:
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len -= snprintf(buf, len, "offset=0x%04x(%d)",
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reg->val, reg->val);
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buf += strlen(buf);
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break;
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case CSRTYPE_L:
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/* XXX fall through */
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case CSRTYPE_D:
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dir = (struct csrdirectory *)(reg + reg->val);
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crc = crom_crc((uint32_t *)&dir->entry[0], dir->crc_len);
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len -= snprintf(buf, len, "len=%d crc=0x%04x(%s) ",
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dir->crc_len, dir->crc,
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(crc == dir->crc) ? "OK" : "NG");
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buf += strlen(buf);
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}
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switch (reg->key) {
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case 0x03:
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desc = "module_vendor_ID";
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break;
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case 0x04:
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desc = "hardware_version";
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break;
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case 0x0c:
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desc = "node_capabilities";
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break;
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case 0x12:
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desc = "unit_spec_ID";
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break;
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case 0x13:
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desc = "unit_sw_version";
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crom_desc_specver(0, reg->val, buf, len);
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break;
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case 0x14:
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desc = "logical_unit_number";
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break;
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case 0x17:
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desc = "model_ID";
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break;
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case 0x38:
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desc = "command_set_spec_ID";
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break;
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case 0x39:
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desc = "command_set";
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break;
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case 0x3a:
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desc = "unit_characteristics";
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break;
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case 0x3b:
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desc = "command_set_revision";
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break;
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case 0x3c:
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desc = "firmware_revision";
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break;
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case 0x3d:
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desc = "reconnect_timeout";
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break;
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case 0x54:
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desc = "management_agent";
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break;
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case 0x81:
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desc = "text_leaf";
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crom_parse_text(cc, buf + strlen(buf), len);
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break;
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case 0xd1:
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desc = "unit_directory";
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break;
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case 0xd4:
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desc = "logical_unit_directory";
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break;
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default:
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desc = "unknown";
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}
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return desc;
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}
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#endif
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#if defined(_KERNEL) || defined(_BOOT) || defined(TEST)
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int
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crom_add_quad(struct crom_chunk *chunk, uint32_t entry)
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{
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int index;
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index = chunk->data.crc_len;
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if (index >= CROM_MAX_CHUNK_LEN - 1) {
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printf("too large chunk %d\n", index);
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return (-1);
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}
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chunk->data.buf[index] = entry;
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chunk->data.crc_len++;
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return (index);
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}
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int
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crom_add_entry(struct crom_chunk *chunk, int key, int val)
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{
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union
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{
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struct csrreg reg;
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uint32_t i;
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} foo;
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foo.reg.key = key;
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foo.reg.val = val;
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return (crom_add_quad(chunk, foo.i));
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}
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int
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crom_add_chunk(struct crom_src *src, struct crom_chunk *parent,
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struct crom_chunk *child, int key)
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{
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int index;
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if (parent == NULL) {
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STAILQ_INSERT_TAIL(&src->chunk_list, child, link);
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return (0);
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}
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index = crom_add_entry(parent, key, 0);
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if (index < 0) {
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return (-1);
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}
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child->ref_chunk = parent;
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child->ref_index = index;
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STAILQ_INSERT_TAIL(&src->chunk_list, child, link);
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return (index);
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}
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#define MAX_TEXT ((CROM_MAX_CHUNK_LEN + 1) * 4 - sizeof(struct csrtext))
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int
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crom_add_simple_text(struct crom_src *src, struct crom_chunk *parent,
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struct crom_chunk *chunk, char *buf)
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{
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struct csrtext *tl;
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uint32_t *p;
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int len, i;
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char t[MAX_TEXT];
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len = strlen(buf);
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if (len > MAX_TEXT) {
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printf("text(%d) truncated to %td.\n", len, MAX_TEXT);
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len = MAX_TEXT;
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}
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tl = (struct csrtext *) &chunk->data;
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tl->crc_len = howmany(sizeof(struct csrtext) + len, sizeof(uint32_t));
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tl->spec_id = 0;
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tl->spec_type = 0;
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tl->lang_id = 0;
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bzero(&t[0], roundup2(len, sizeof(uint32_t)));
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bcopy(buf, &t[0], len);
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p = (uint32_t *)&t[0];
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for (i = 0; i < howmany(len, sizeof(uint32_t)); i++)
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tl->text[i] = ntohl(*p++);
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return (crom_add_chunk(src, parent, chunk, CROM_TEXTLEAF));
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}
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|
static int
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crom_copy(uint32_t *src, uint32_t *dst, int *offset, int len, int maxlen)
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|
{
|
|
if (*offset + len > maxlen) {
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printf("Config. ROM is too large for the buffer\n");
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return (-1);
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}
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bcopy(src, (char *)(dst + *offset), len * sizeof(uint32_t));
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*offset += len;
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return (0);
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}
|
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|
|
int
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crom_load(struct crom_src *src, uint32_t *buf, int maxlen)
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{
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struct crom_chunk *chunk, *parent;
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struct csrhdr *hdr;
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#if defined(_KERNEL) || defined(_BOOT)
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|
uint32_t *ptr;
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int i;
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#endif
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int count, offset;
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int len;
|
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offset = 0;
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/* Determine offset */
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STAILQ_FOREACH(chunk, &src->chunk_list, link) {
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chunk->offset = offset;
|
|
/* Assume the offset of the parent is already known */
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|
parent = chunk->ref_chunk;
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|
if (parent != NULL) {
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|
struct csrreg *reg;
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reg = (struct csrreg *)
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&parent->data.buf[chunk->ref_index];
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|
reg->val = offset -
|
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(parent->offset + 1 + chunk->ref_index);
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|
}
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|
offset += 1 + chunk->data.crc_len;
|
|
}
|
|
|
|
/* Calculate CRC and dump to the buffer */
|
|
len = 1 + src->hdr.info_len;
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|
count = 0;
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|
if (crom_copy((uint32_t *)&src->hdr, buf, &count, len, maxlen) < 0)
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|
return (-1);
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STAILQ_FOREACH(chunk, &src->chunk_list, link) {
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|
chunk->data.crc =
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crom_crc(&chunk->data.buf[0], chunk->data.crc_len);
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|
|
len = 1 + chunk->data.crc_len;
|
|
if (crom_copy((uint32_t *)&chunk->data, buf,
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&count, len, maxlen) < 0)
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return (-1);
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}
|
|
hdr = (struct csrhdr *)buf;
|
|
hdr->crc_len = count - 1;
|
|
hdr->crc = crom_crc(&buf[1], hdr->crc_len);
|
|
|
|
#if defined(_KERNEL) || defined(_BOOT)
|
|
/* byte swap */
|
|
ptr = buf;
|
|
for (i = 0; i < count; i++) {
|
|
*ptr = htonl(*ptr);
|
|
ptr++;
|
|
}
|
|
#endif
|
|
|
|
return (count);
|
|
}
|
|
#endif
|
|
|
|
#ifdef TEST
|
|
int
|
|
main()
|
|
{
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struct crom_src src;
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struct crom_chunk root,unit1,unit2,unit3;
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struct crom_chunk text1,text2,text3,text4,text5,text6,text7;
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uint32_t buf[256], *p;
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int i;
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bzero(&src, sizeof(src));
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bzero(&root, sizeof(root));
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bzero(&unit1, sizeof(unit1));
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bzero(&unit2, sizeof(unit2));
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bzero(&unit3, sizeof(unit3));
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bzero(&text1, sizeof(text1));
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bzero(&text2, sizeof(text2));
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bzero(&text3, sizeof(text3));
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bzero(&text3, sizeof(text4));
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bzero(&text3, sizeof(text5));
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bzero(&text3, sizeof(text6));
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bzero(&text3, sizeof(text7));
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bzero(buf, sizeof(buf));
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/* BUS info sample */
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src.hdr.info_len = 4;
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src.businfo.bus_name = CSR_BUS_NAME_IEEE1394;
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src.businfo.eui64.hi = 0x11223344;
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src.businfo.eui64.lo = 0x55667788;
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src.businfo.link_spd = FWSPD_S400;
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src.businfo.generation = 0;
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src.businfo.max_rom = MAXROM_4;
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src.businfo.max_rec = 10;
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src.businfo.cyc_clk_acc = 100;
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src.businfo.pmc = 0;
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src.businfo.bmc = 1;
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src.businfo.isc = 1;
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src.businfo.cmc = 1;
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src.businfo.irmc = 1;
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STAILQ_INIT(&src.chunk_list);
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/* Root directory */
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crom_add_chunk(&src, NULL, &root, 0);
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crom_add_entry(&root, CSRKEY_NCAP, 0x123456);
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/* private company_id */
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crom_add_entry(&root, CSRKEY_VENDOR, 0xacde48);
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crom_add_simple_text(&src, &root, &text1, "FreeBSD");
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crom_add_entry(&root, CSRKEY_HW, __FreeBSD_version);
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crom_add_simple_text(&src, &root, &text2, "FreeBSD-5");
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/* SBP unit directory */
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crom_add_chunk(&src, &root, &unit1, CROM_UDIR);
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crom_add_entry(&unit1, CSRKEY_SPEC, CSRVAL_ANSIT10);
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crom_add_entry(&unit1, CSRKEY_VER, CSRVAL_T10SBP2);
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crom_add_entry(&unit1, CSRKEY_COM_SPEC, CSRVAL_ANSIT10);
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crom_add_entry(&unit1, CSRKEY_COM_SET, CSRVAL_SCSI);
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/* management_agent */
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crom_add_entry(&unit1, CROM_MGM, 0x1000);
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crom_add_entry(&unit1, CSRKEY_UNIT_CH, (10<<8) | 8);
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/* Device type and LUN */
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crom_add_entry(&unit1, CROM_LUN, 0);
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crom_add_entry(&unit1, CSRKEY_MODEL, 1);
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crom_add_simple_text(&src, &unit1, &text3, "scsi_target");
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/* RFC2734 IPv4 over IEEE1394 */
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crom_add_chunk(&src, &root, &unit2, CROM_UDIR);
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crom_add_entry(&unit2, CSRKEY_SPEC, CSRVAL_IETF);
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crom_add_simple_text(&src, &unit2, &text4, "IANA");
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crom_add_entry(&unit2, CSRKEY_VER, 1);
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crom_add_simple_text(&src, &unit2, &text5, "IPv4");
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/* RFC3146 IPv6 over IEEE1394 */
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crom_add_chunk(&src, &root, &unit3, CROM_UDIR);
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crom_add_entry(&unit3, CSRKEY_SPEC, CSRVAL_IETF);
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crom_add_simple_text(&src, &unit3, &text6, "IANA");
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crom_add_entry(&unit3, CSRKEY_VER, 2);
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crom_add_simple_text(&src, &unit3, &text7, "IPv6");
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crom_load(&src, buf, 256);
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p = buf;
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#define DUMP_FORMAT "%08x %08x %08x %08x %08x %08x %08x %08x\n"
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for (i = 0; i < 256/8; i++) {
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printf(DUMP_FORMAT,
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
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p += 8;
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}
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return (0);
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}
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#endif
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