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/*
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* FPGA loader for Tascam US-X2Y
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*
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* Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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b98cfc |
* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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b98cfc |
* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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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 <ctype.h>
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#include <getopt.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <assert.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <stdarg.h>
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#include <alsa/asoundlib.h>
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#define PROGNAME "usx2yloader"
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#define SND_USX2Y_LOADER_ID "USX2Y Loader"
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/* max. number of cards (shouldn't be in the public header?) */
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#define SND_CARDS 8
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static int verbose = 0;
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static void usage(void)
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{
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printf("FPGA loader for Tascam US-X2Y\n");
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printf("version %s\n", VERSION);
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printf("usage: usx2yloader [-c card] [-D device] [-u usb-device]\n");
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}
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static void error(const char *fmt, ...)
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{
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if (verbose) {
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "%s: ", PROGNAME);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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}
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}
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/*
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* read a xilinx bitstream file.
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* NOTE: This interprets somehow differently from the vxloaders read_xilinx_image()!
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* I took this from rbtload.c of the project usb-midi-fw.sf.net.
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*/
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static int read_xilinx_image(snd_hwdep_dsp_image_t *img, const char *fname)
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{
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FILE *fp;
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char buf[256];
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int data = 0, c = 0, idx = 0, length = 0;
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char *p;
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char *imgbuf = 0;
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if ((fp = fopen(fname, "r")) == NULL) {
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fprintf(stderr, PROGNAME ": cannot open %s\n", fname);
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return -EINVAL;
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}
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snd_hwdep_dsp_image_set_name(img, fname);
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while (fgets(buf, sizeof(buf), fp)) {
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if (strncmp(buf, "Bits:", 5) == 0) {
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for (p = buf + 5; *p && isspace(*p); p++);
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if (!*p) {
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fprintf(stderr,
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PROGNAME
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": corrupted file %s in Bits line\n",
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fname);
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fclose(fp);
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return -EINVAL;
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}
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length = atoi(p);
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length /= 8;
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if (length <= 0) {
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fprintf(stderr,
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PROGNAME
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": corrupted file %s, detected length = %d\n",
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fname, length);
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fclose(fp);
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return -EINVAL;
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}
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imgbuf = malloc(length);
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if (!imgbuf) {
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fprintf(stderr,
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PROGNAME
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": cannot alloc %d bytes\n",
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length);
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fclose(fp);
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return -ENOMEM;
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}
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continue;
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}
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if ((buf[0] != '0') && (buf[0] != '1')) {
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//printf("line %d skipped\n", line);
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continue;
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}
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b98cfc |
if (length <= 0) {
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fprintf(stderr,
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PROGNAME
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b98cfc |
": corrupted file %s, starting without Bits line\n",
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fname);
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fclose(fp);
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return -EINVAL;
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}
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//printf("\n idx=%d", idx);
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for (p = buf; *p == '0' || *p == '1'; p++) {
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data |= (*p - '0') << c;
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c++;
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if (c >= 8) {
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//printf(" %02X", data);
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imgbuf[idx++] = data;
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data = c = 0;
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if (idx > length)
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break;
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}
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}
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}
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if (idx != length || 0 == imgbuf) {
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fprintf(stderr, PROGNAME ": length doesn't match: %d != %d\n", idx, length);
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fclose(fp);
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return -EINVAL;
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}
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if (c)
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imgbuf[idx++] = data;
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snd_hwdep_dsp_image_set_length(img, length);
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snd_hwdep_dsp_image_set_image(img, imgbuf);
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fclose(fp);
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return 0;
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}
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/*
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* read a binary image file
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*/
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static int read_boot_image(snd_hwdep_dsp_image_t *img, const char *fname)
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{
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struct stat st;
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b98cfc |
int fd, length;
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unsigned char *imgbuf;
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snd_hwdep_dsp_image_set_name(img, fname);
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if (stat(fname, &st) < 0) {
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error("cannot call stat %s\n", fname);
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return -ENODEV;
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}
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length = st.st_size;
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if (length == 0) {
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error("zero file size %s\n", fname);
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return -EINVAL;
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}
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imgbuf = malloc(st.st_size);
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if (! imgbuf) {
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error("cannot malloc %d bytes\n", length);
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return -ENOMEM;
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}
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snd_hwdep_dsp_image_set_length(img, length);
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snd_hwdep_dsp_image_set_image(img, imgbuf);
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fd = open(fname, O_RDONLY);
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if (fd < 0) {
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error("cannot open %s\n", fname);
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return -ENODEV;
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}
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if (read(fd, imgbuf, length) != length) {
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error("cannot read %d bytes from %s\n", length, fname);
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close(fd);
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return -EINVAL;
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}
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close(fd);
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return 0;
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}
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/*
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* parse the index file and get the file to read from the key
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*/
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#define MAX_PATH 128
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static int get_file_name(const char *key, unsigned int idx, char *fname)
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{
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b98cfc |
FILE *fp;
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b98cfc |
char buf[128];
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char temp[32], *p;
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int len;
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snprintf(buf, sizeof(buf), "%s/%s.conf", DATAPATH, key);
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if ((fp = fopen(buf, "r")) == NULL) {
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error("cannot open the index file %s\n", buf);
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return -ENODEV;
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}
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sprintf(temp, "dsp%d", idx);
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len = strlen(temp);
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b98cfc |
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while (fgets(buf, sizeof(buf), fp)) {
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b98cfc |
if (strncmp(buf, temp, len))
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b98cfc |
continue;
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b98cfc |
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for (p = buf + len; *p && isspace(*p); p++)
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;
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if (*p == '/') {
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strncpy(fname, p, MAX_PATH);
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} else {
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snprintf(fname, MAX_PATH, "%s/%s", DATAPATH, p);
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}
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fname[MAX_PATH-1] = 0;
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/* chop the last linefeed */
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for (p = fname; *p && *p != '\n'; p++)
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;
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*p = 0;
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b98cfc |
fclose(fp);
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return 0;
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b98cfc |
}
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b98cfc |
fclose(fp);
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error("cannot find the file entry for %s\n", temp);
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b98cfc |
return -ENODEV;
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Packit Service |
b98cfc |
}
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b98cfc |
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b98cfc |
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b98cfc |
/*
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* read and transfer the firmware binary
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b98cfc |
*/
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b98cfc |
static int load_firmware(snd_hwdep_t *hw, const char *id, unsigned int idx)
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b98cfc |
{
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b98cfc |
int err, prepad;
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b98cfc |
char fname[MAX_PATH];
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b98cfc |
snd_hwdep_dsp_image_t* dsp;
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b98cfc |
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if ((prepad = get_file_name(id, idx, fname)) < 0)
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return -EINVAL;
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b98cfc |
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b98cfc |
snd_hwdep_dsp_image_alloca(&dsp;;
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b98cfc |
snd_hwdep_dsp_image_set_index(dsp, idx);
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b98cfc |
if (strcmp(fname + strlen(fname) - 4, ".rbt"))
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b98cfc |
err = read_boot_image(dsp, fname);
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b98cfc |
else
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b98cfc |
err = read_xilinx_image(dsp, fname);
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Packit Service |
b98cfc |
if (err < 0)
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Packit Service |
b98cfc |
return err;
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Packit Service |
b98cfc |
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Packit Service |
b98cfc |
err = snd_hwdep_dsp_load(hw, dsp);
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Packit Service |
b98cfc |
if (err < 0)
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Packit Service |
b98cfc |
error("error in loading %s\n", fname);
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Packit Service |
b98cfc |
return err;
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Packit Service |
b98cfc |
}
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b98cfc |
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Packit Service |
b98cfc |
|
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Packit Service |
b98cfc |
/*
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b98cfc |
* check the name id of the given hwdep handle
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Packit Service |
b98cfc |
*/
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Packit Service |
b98cfc |
static int check_hwinfo(snd_hwdep_t *hw, const char *id, const char* usb_dev_name)
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Packit Service |
b98cfc |
{
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Packit Service |
b98cfc |
snd_hwdep_info_t *info;
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Packit Service |
b98cfc |
int err;
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Packit Service |
b98cfc |
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Packit Service |
b98cfc |
snd_hwdep_info_alloca(&info;;
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Packit Service |
b98cfc |
if ((err = snd_hwdep_info(hw, info)) < 0)
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Packit Service |
b98cfc |
return err;
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Packit Service |
b98cfc |
if (strcmp(snd_hwdep_info_get_id(info), id))
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Packit Service |
b98cfc |
return -ENODEV;
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Packit Service |
b98cfc |
if (usb_dev_name)
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Packit Service |
b98cfc |
if (strcmp(snd_hwdep_info_get_name(info), usb_dev_name))
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Packit Service |
b98cfc |
return -ENODEV;
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Packit Service |
b98cfc |
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Packit Service |
b98cfc |
return 0; /* ok */
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Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
/*
|
|
Packit Service |
b98cfc |
* load the firmware binaries
|
|
Packit Service |
b98cfc |
*/
|
|
Packit Service |
b98cfc |
static int usx2y_boot(const char *devname)
|
|
Packit Service |
b98cfc |
{
|
|
Packit Service |
b98cfc |
snd_hwdep_t *hw;
|
|
Packit Service |
b98cfc |
const char *id;
|
|
Packit Service |
b98cfc |
int err;
|
|
Packit Service |
b98cfc |
unsigned int idx, dsps, loaded;
|
|
Packit Service |
b98cfc |
snd_hwdep_dsp_status_t *stat;
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
if ((err = snd_hwdep_open(&hw, devname, O_RDWR)) < 0) {
|
|
Packit Service |
b98cfc |
error("cannot open hwdep %s\n", devname);
|
|
Packit Service |
b98cfc |
return err;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
if (check_hwinfo(hw, SND_USX2Y_LOADER_ID, NULL) < 0) {
|
|
Packit Service |
b98cfc |
error("invalid hwdep %s\n", devname);
|
|
Packit Service |
b98cfc |
snd_hwdep_close(hw);
|
|
Packit Service |
b98cfc |
return -ENODEV;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
snd_hwdep_dsp_status_alloca(&stat;;
|
|
Packit Service |
b98cfc |
/* get the current status */
|
|
Packit Service |
b98cfc |
if ((err = snd_hwdep_dsp_status(hw, stat)) < 0) {
|
|
Packit Service |
b98cfc |
error("cannot get version for %s\n", devname);
|
|
Packit Service |
b98cfc |
snd_hwdep_close(hw);
|
|
Packit Service |
b98cfc |
return err;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
if (snd_hwdep_dsp_status_get_chip_ready(stat))
|
|
Packit Service |
b98cfc |
return 0; /* already loaded */
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
id = snd_hwdep_dsp_status_get_id(stat);
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
dsps = snd_hwdep_dsp_status_get_num_dsps(stat);
|
|
Packit Service |
b98cfc |
loaded = snd_hwdep_dsp_status_get_dsp_loaded(stat);
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
for (idx = 0; idx < dsps; idx++) {
|
|
Packit Service |
b98cfc |
if (loaded & (1 << idx))
|
|
Packit Service |
b98cfc |
continue;
|
|
Packit Service |
b98cfc |
if ((err = load_firmware(hw, id, idx)) < 0) {
|
|
Packit Service |
b98cfc |
snd_hwdep_close(hw);
|
|
Packit Service |
b98cfc |
return err;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
snd_hwdep_close(hw);
|
|
Packit Service |
b98cfc |
return 0;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
int main(int argc, char **argv)
|
|
Packit Service |
b98cfc |
{
|
|
Packit Service |
b98cfc |
int c;
|
|
Packit Service |
b98cfc |
int card = -1;
|
|
Packit Service |
b98cfc |
char *device_name = NULL,
|
|
Packit Service |
b98cfc |
*usb_device_name = getenv("DEVICE");
|
|
Packit Service |
b98cfc |
char name[64];
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
while ((c = getopt(argc, argv, "c:D:u:")) != -1) {
|
|
Packit Service |
b98cfc |
switch (c) {
|
|
Packit Service |
b98cfc |
case 'c':
|
|
Packit Service |
b98cfc |
card = atoi(optarg);
|
|
Packit Service |
b98cfc |
break;
|
|
Packit Service |
b98cfc |
case 'D':
|
|
Packit Service |
b98cfc |
device_name = optarg;
|
|
Packit Service |
b98cfc |
break;
|
|
Packit Service |
b98cfc |
case 'u':
|
|
Packit Service |
b98cfc |
usb_device_name = optarg;
|
|
Packit Service |
b98cfc |
break;
|
|
Packit Service |
b98cfc |
default:
|
|
Packit Service |
b98cfc |
usage();
|
|
Packit Service |
b98cfc |
return 1;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
if (usb_device_name) {
|
|
Packit Service |
b98cfc |
snd_hwdep_t *hw = NULL;
|
|
Packit Service |
b98cfc |
for (c = 0; c < SND_CARDS; c++) {
|
|
Packit Service |
b98cfc |
sprintf(name, "hw:%d", c);
|
|
Packit Service |
b98cfc |
if ((0 <= snd_hwdep_open(&hw, name, O_RDWR))
|
|
Packit Service |
b98cfc |
&& (0 <= check_hwinfo(hw, SND_USX2Y_LOADER_ID, usb_device_name))
|
|
Packit Service |
b98cfc |
&& (0 <= snd_hwdep_close(hw))){
|
|
Packit Service |
b98cfc |
card = c;
|
|
Packit Service |
b98cfc |
break;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
if (device_name) {
|
|
Packit Service |
b98cfc |
verbose = 1;
|
|
Packit Service |
b98cfc |
return usx2y_boot(device_name) != 0;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
if (card >= 0) {
|
|
Packit Service |
b98cfc |
sprintf(name, "hw:%d", card);
|
|
Packit Service |
b98cfc |
verbose = 1;
|
|
Packit Service |
b98cfc |
return usx2y_boot(name) != 0;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
|
|
Packit Service |
b98cfc |
/* probe the all cards */
|
|
Packit Service |
b98cfc |
for (c = 0; c < SND_CARDS; c++) {
|
|
Packit Service |
b98cfc |
sprintf(name, "hw:%d", c);
|
|
Packit Service |
b98cfc |
if (! usx2y_boot(name))
|
|
Packit Service |
b98cfc |
card = c;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
if (card < 0) {
|
|
Packit Service |
b98cfc |
fprintf(stderr, PROGNAME ": no US-X2Y-compatible cards found\n");
|
|
Packit Service |
b98cfc |
return 1;
|
|
Packit Service |
b98cfc |
}
|
|
Packit Service |
b98cfc |
return 0;
|
|
Packit Service |
b98cfc |
}
|