/*
* ALSA driver for Echoaudio soundcards.
* Copyright (C) 2003-2004 Giuliano Pochini <pochini@shiny.it>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <sys/stat.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
char *next_number(char *c)
{
while (1) {
c++;
if (*c==0 || *c == '}')
return NULL;
if (c[0]=='0' && c[1]=='x')
return c;
}
}
int write_fw(const char *dest, const char *src)
{
uint16_t d16;
uint8_t d8;
int fd;
struct stat stbuf;
char *buf, *c;
if ((fd = open(src, O_RDONLY)) < 0) {
printf("%s: %s\n", src, strerror(errno));
exit(errno);
}
if (fstat(fd, &stbuf) < 0) {
printf("%s: %s\n", src, strerror(errno));
exit(errno);
}
if (!(buf = malloc(stbuf.st_size + 1))) {
puts("Out of memory.");
exit(ENOMEM);
}
if (read(fd, buf, stbuf.st_size) < stbuf.st_size) {
puts("Read error.");
exit(EIO);
}
close(fd);
buf[stbuf.st_size] = 0;
if ((fd = open(dest, O_WRONLY | O_CREAT | O_TRUNC, 0644)) < 0) {
printf("%s: %s\n", dest, strerror(errno));
exit(errno);
}
if ((c = strstr(buf, "u8 ")) || (c = strstr(buf, "BYTE ")) || (c = strstr(buf, "char "))) {
while (c = next_number(c)) {
d8 = strtol(c, NULL, 16);
if (write(fd, &d8, 1) < 1) {
printf("Error writing %s\n", dest);
exit(EIO);
}
}
} else if ((c = strstr(buf, "u16 ")) || (c = strstr(buf, "WORD "))) {
while (c = next_number(c)) {
d16 = strtol(c, NULL, 16);
if (write(fd, &d16, 2) < 2) {
printf("Error writing %s\n", dest);
exit(EIO);
}
}
} else {
printf("%s currupted ?\n", src);
exit(EINVAL);
}
close(fd);
free(buf);
return 0;
}
int main(int argc, char *argv[])
{
if (argc != 3) {
printf("Syntax: %s <source> <destination>\n", argv[0]);
exit(0);
}
write_fw(argv[2], argv[1]);
return 0;
}