mirror of https://github.com/gnif/vendor-reset
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
/*
|
|
Vendor Reset - Vendor Specific Reset
|
|
Copyright (C) 2020 Geoffrey McRae <geoff@hostfission.com>
|
|
Copyright (C) 2020 Adam Madsen <adam@ajmadsen.com>
|
|
|
|
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 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 <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <sys/ioctl.h>
|
|
#include "vendor-reset-ioctl.h"
|
|
#include "ucommon.h"
|
|
|
|
void help_(const char *prog);
|
|
|
|
void help_(const char *prog)
|
|
{
|
|
fprintf(stderr,
|
|
"Usage:\n"
|
|
" %s [domain:]bus:dev.fn\n",
|
|
prog);
|
|
exit(1);
|
|
}
|
|
#define help() help_(argv[0])
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int ret;
|
|
struct dbdf devref;
|
|
|
|
if (argc < 2)
|
|
help();
|
|
|
|
if (parse_dbdf(argv[1], &devref))
|
|
help();
|
|
|
|
int fd = open("/dev/vendor_reset", O_RDWR);
|
|
if (fd < 0)
|
|
{
|
|
perror("open");
|
|
return fd;
|
|
}
|
|
|
|
struct vendor_reset_ioctl dev = {
|
|
.domain = devref.domain,
|
|
.bus = devref.bus,
|
|
.devfn = ((devref.device & 0x1f) << 3) | (devref.function & 0x07),
|
|
};
|
|
|
|
ret = ioctl(fd, VENDOR_RESET_RESET, &dev);
|
|
if (ret < 0)
|
|
{
|
|
perror("ioctl");
|
|
goto err;
|
|
}
|
|
|
|
err:
|
|
close(fd);
|
|
return 0;
|
|
}
|