1*0a6a1f1dSLionel Sambuc /* $NetBSD: pci_drvname.c,v 1.1 2014/07/25 01:38:26 mrg Exp $ */
2*0a6a1f1dSLionel Sambuc
3*0a6a1f1dSLionel Sambuc /*
4*0a6a1f1dSLionel Sambuc * Copyright (c) 2014 Matthew R. Green
5*0a6a1f1dSLionel Sambuc * All rights reserved.
6*0a6a1f1dSLionel Sambuc *
7*0a6a1f1dSLionel Sambuc * Redistribution and use in source and binary forms, with or without
8*0a6a1f1dSLionel Sambuc * modification, are permitted provided that the following conditions
9*0a6a1f1dSLionel Sambuc * are met:
10*0a6a1f1dSLionel Sambuc * 1. Redistributions of source code must retain the above copyright
11*0a6a1f1dSLionel Sambuc * notice, this list of conditions and the following disclaimer.
12*0a6a1f1dSLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
13*0a6a1f1dSLionel Sambuc * notice, this list of conditions and the following disclaimer in the
14*0a6a1f1dSLionel Sambuc * documentation and/or other materials provided with the distribution.
15*0a6a1f1dSLionel Sambuc * 3. The name of the author may not be used to endorse or promote products
16*0a6a1f1dSLionel Sambuc * derived from this software without specific prior written permission.
17*0a6a1f1dSLionel Sambuc *
18*0a6a1f1dSLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19*0a6a1f1dSLionel Sambuc * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20*0a6a1f1dSLionel Sambuc * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21*0a6a1f1dSLionel Sambuc * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22*0a6a1f1dSLionel Sambuc * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
23*0a6a1f1dSLionel Sambuc * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24*0a6a1f1dSLionel Sambuc * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
25*0a6a1f1dSLionel Sambuc * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
26*0a6a1f1dSLionel Sambuc * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27*0a6a1f1dSLionel Sambuc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28*0a6a1f1dSLionel Sambuc * SUCH DAMAGE.
29*0a6a1f1dSLionel Sambuc */
30*0a6a1f1dSLionel Sambuc
31*0a6a1f1dSLionel Sambuc #include <sys/cdefs.h>
32*0a6a1f1dSLionel Sambuc __RCSID("$NetBSD: pci_drvname.c,v 1.1 2014/07/25 01:38:26 mrg Exp $");
33*0a6a1f1dSLionel Sambuc
34*0a6a1f1dSLionel Sambuc #include <sys/types.h>
35*0a6a1f1dSLionel Sambuc #include <sys/ioctl.h>
36*0a6a1f1dSLionel Sambuc #include <string.h>
37*0a6a1f1dSLionel Sambuc
38*0a6a1f1dSLionel Sambuc #include <pci.h>
39*0a6a1f1dSLionel Sambuc
40*0a6a1f1dSLionel Sambuc #include <dev/pci/pciio.h>
41*0a6a1f1dSLionel Sambuc
42*0a6a1f1dSLionel Sambuc /*
43*0a6a1f1dSLionel Sambuc * pci_drvname:
44*0a6a1f1dSLionel Sambuc *
45*0a6a1f1dSLionel Sambuc * What's the driver name for a PCI device?
46*0a6a1f1dSLionel Sambuc */
47*0a6a1f1dSLionel Sambuc int
pci_drvname(int fd,u_int device,u_int func,char * name,size_t len)48*0a6a1f1dSLionel Sambuc pci_drvname(int fd, u_int device, u_int func, char *name, size_t len)
49*0a6a1f1dSLionel Sambuc {
50*0a6a1f1dSLionel Sambuc struct pciio_drvname drvname;
51*0a6a1f1dSLionel Sambuc int rv;
52*0a6a1f1dSLionel Sambuc
53*0a6a1f1dSLionel Sambuc drvname.device = device;
54*0a6a1f1dSLionel Sambuc drvname.function = func;
55*0a6a1f1dSLionel Sambuc
56*0a6a1f1dSLionel Sambuc rv = ioctl(fd, PCI_IOC_DRVNAME, &drvname);
57*0a6a1f1dSLionel Sambuc if (rv == -1)
58*0a6a1f1dSLionel Sambuc return -1;
59*0a6a1f1dSLionel Sambuc
60*0a6a1f1dSLionel Sambuc strlcpy(name, drvname.name, len);
61*0a6a1f1dSLionel Sambuc return 0;
62*0a6a1f1dSLionel Sambuc }
63