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pci_drvname.c revision 1.1.6.2 
      1  1.1.6.2  tls /*	$NetBSD: pci_drvname.c,v 1.1.6.2 2014/08/20 00:02:19 tls Exp $	*/
      2  1.1.6.2  tls 
      3  1.1.6.2  tls /*
      4  1.1.6.2  tls  * Copyright (c) 2014 Matthew R. Green
      5  1.1.6.2  tls  * All rights reserved.
      6  1.1.6.2  tls  *
      7  1.1.6.2  tls  * Redistribution and use in source and binary forms, with or without
      8  1.1.6.2  tls  * modification, are permitted provided that the following conditions
      9  1.1.6.2  tls  * are met:
     10  1.1.6.2  tls  * 1. Redistributions of source code must retain the above copyright
     11  1.1.6.2  tls  *    notice, this list of conditions and the following disclaimer.
     12  1.1.6.2  tls  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1.6.2  tls  *    notice, this list of conditions and the following disclaimer in the
     14  1.1.6.2  tls  *    documentation and/or other materials provided with the distribution.
     15  1.1.6.2  tls  * 3. The name of the author may not be used to endorse or promote products
     16  1.1.6.2  tls  *    derived from this software without specific prior written permission.
     17  1.1.6.2  tls  *
     18  1.1.6.2  tls  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  1.1.6.2  tls  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  1.1.6.2  tls  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  1.1.6.2  tls  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  1.1.6.2  tls  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  1.1.6.2  tls  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  1.1.6.2  tls  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  1.1.6.2  tls  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  1.1.6.2  tls  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  1.1.6.2  tls  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  1.1.6.2  tls  * SUCH DAMAGE.
     29  1.1.6.2  tls  */
     30  1.1.6.2  tls 
     31  1.1.6.2  tls #include <sys/cdefs.h>
     32  1.1.6.2  tls __RCSID("$NetBSD: pci_drvname.c,v 1.1.6.2 2014/08/20 00:02:19 tls Exp $");
     33  1.1.6.2  tls 
     34  1.1.6.2  tls #include <sys/types.h>
     35  1.1.6.2  tls #include <sys/ioctl.h>
     36  1.1.6.2  tls #include <string.h>
     37  1.1.6.2  tls 
     38  1.1.6.2  tls #include <pci.h>
     39  1.1.6.2  tls 
     40  1.1.6.2  tls #include <dev/pci/pciio.h>
     41  1.1.6.2  tls 
     42  1.1.6.2  tls /*
     43  1.1.6.2  tls  * pci_drvname:
     44  1.1.6.2  tls  *
     45  1.1.6.2  tls  *	What's the driver name for a PCI device?
     46  1.1.6.2  tls  */
     47  1.1.6.2  tls int
     48  1.1.6.2  tls pci_drvname(int fd, u_int device, u_int func, char *name, size_t len)
     49  1.1.6.2  tls {
     50  1.1.6.2  tls 	struct pciio_drvname drvname;
     51  1.1.6.2  tls 	int rv;
     52  1.1.6.2  tls 
     53  1.1.6.2  tls 	drvname.device = device;
     54  1.1.6.2  tls 	drvname.function = func;
     55  1.1.6.2  tls 
     56  1.1.6.2  tls 	rv = ioctl(fd, PCI_IOC_DRVNAME, &drvname);
     57  1.1.6.2  tls 	if (rv == -1)
     58  1.1.6.2  tls 		return -1;
     59  1.1.6.2  tls 
     60  1.1.6.2  tls 	strlcpy(name, drvname.name, len);
     61  1.1.6.2  tls 	return 0;
     62  1.1.6.2  tls }
     63