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/*** -*- linux-c -*- **********************************************************
Firmware loader for Atmel at76c502 at76c504 and at76c506 wireless cards.
Copyright 2003 Simon Kelley.
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; either version 2 of the License, or
(at your option) any later version.
This software 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 Atmel wireless lan drivers; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
******************************************************************************/
#include <stdio.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#define ATMELFWL 0x8be0
#define ATMELIDIFC 0x8be1
#define ATMELMAGIC 0x51807
struct atmel_priv_ioctl {
char id[32];
unsigned char *data;
unsigned short len;
};
main(int argc, char **argv)
{
int i, magic, rc, sock = -1;
struct ifreq ifr;
struct atmel_priv_ioctl com;
static const int families[] = {
AF_INET, AF_IPX, AF_AX25, AF_APPLETALK
};
FILE *file;
char *id;
long len;
if (argc != 3) {
fprintf(stderr,
"Usage: atmel_fwl <interface> <path/to/firmware>\n");
exit(1);
}
if (!(file = fopen(argv[2], "r"))) {
fprintf(stderr,
"atmel_fw: Cannot open %s:%s\n",
argv[2], strerror(errno) );
exit(1);
}
if (fseek(file, 0, SEEK_END) != 0) {
perror("atmel_fwl: cannot seek to end");
exit(1);
}
if ((len = ftell(file)) == -1) {
perror("atmel_fwl: cannot get file length");
exit(1);
}
com.len = len;
rewind(file);
if (!(com.data = malloc(com.len))) {
fprintf(stderr, "atmel_fwl: cannot get memory.\n");
exit(1);
}
if (fread(com.data, 1, com.len, file) != com.len) {
fprintf(stderr, "atmel_fwl: cannot read file.\n");
exit(1);
}
fclose(file);
if (id = strrchr(argv[2], '/'))
id++;
else
id = argv[2];
strncpy(com.id, id, 31);
com.id[31] = '\0';
/*
* Now pick any (existing) useful socket family for generic queries
* Note : don't open all the socket, only returns when one matches,
* all protocols might not be valid.
* Workaround by Jim Kaba <jkaba@sarnoff.com>
* Note : in 99% of the case, we will just open the inet_sock.
* The remaining 1% case are not fully correct...
*/
/* Try all families we support */
for(i = 0; i < sizeof(families)/sizeof(int); ++i) {
/* Try to open the socket, if success returns it */
sock = socket(families[i], SOCK_DGRAM, 0);
if(sock >= 0)
break;
}
if (sock == -1) {
perror("atmel_fwl: cannot get socket");
exit(1);
}
strcpy(ifr.ifr_ifrn.ifrn_name, argv[1]);
rc = ioctl(sock, ATMELIDIFC, &ifr);
if (rc !=0 || ifr.ifr_ifru.ifru_ivalue != ATMELMAGIC) {
fprintf(stderr, "atmel_fwl: %s is not an Atmel interface.\n");
exit(1);
}
ifr.ifr_ifru.ifru_data = (char *)&com;
rc = ioctl(sock, ATMELFWL, &ifr);
if (rc != 0) {
perror("atmel_fwl: Cannot load firmware");
exit(1);
}
exit(0);
}
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