110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
/*
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* ALSA driver for Echoaudio soundcards.
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* Copyright (C) 2003-2004 Giuliano Pochini <pochini@shiny.it>
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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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* the Free Software Foundation; version 2 of the License.
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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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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <sys/stat.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <errno.h>
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char *next_number(char *c)
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{
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while (1) {
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c++;
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if (*c==0 || *c == '}')
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return NULL;
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if (c[0]=='0' && c[1]=='x')
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return c;
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}
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}
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int write_fw(const char *dest, const char *src)
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{
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uint16_t d16;
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uint8_t d8;
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int fd;
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struct stat stbuf;
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char *buf, *c;
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if ((fd = open(src, O_RDONLY)) < 0) {
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printf("%s: %s\n", src, strerror(errno));
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exit(errno);
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}
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if (fstat(fd, &stbuf) < 0) {
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printf("%s: %s\n", src, strerror(errno));
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exit(errno);
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}
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if (!(buf = malloc(stbuf.st_size + 1))) {
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puts("Out of memory.");
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exit(ENOMEM);
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}
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if (read(fd, buf, stbuf.st_size) < stbuf.st_size) {
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puts("Read error.");
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exit(EIO);
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}
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close(fd);
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buf[stbuf.st_size] = 0;
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if ((fd = open(dest, O_WRONLY | O_CREAT | O_TRUNC, 0644)) < 0) {
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printf("%s: %s\n", dest, strerror(errno));
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exit(errno);
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}
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if ((c = strstr(buf, "u8 ")) || (c = strstr(buf, "BYTE ")) || (c = strstr(buf, "char "))) {
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while (c = next_number(c)) {
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d8 = strtol(c, NULL, 16);
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if (write(fd, &d8, 1) < 1) {
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printf("Error writing %s\n", dest);
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exit(EIO);
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}
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}
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} else if ((c = strstr(buf, "u16 ")) || (c = strstr(buf, "WORD "))) {
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while (c = next_number(c)) {
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d16 = strtol(c, NULL, 16);
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if (write(fd, &d16, 2) < 2) {
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printf("Error writing %s\n", dest);
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exit(EIO);
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}
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}
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} else {
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printf("%s currupted ?\n", src);
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exit(EINVAL);
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}
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close(fd);
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free(buf);
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return 0;
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}
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int main(int argc, char *argv[])
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{
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if (argc != 3) {
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printf("Syntax: %s <source> <destination>\n", argv[0]);
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exit(0);
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}
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write_fw(argv[2], argv[1]);
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return 0;
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}
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