87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* $NetBSD: pci_drvname.c,v 1.2 2016/09/24 23:12:54 mrg Exp $ */
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/*
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* Copyright (c) 2014 Matthew R. Green
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: pci_drvname.c,v 1.2 2016/09/24 23:12:54 mrg Exp $");
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <string.h>
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#include <pci.h>
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#include <dev/pci/pciio.h>
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/*
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* pci_drvname:
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*
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* What's the driver name for a PCI device?
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*/
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int
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pci_drvname(int fd, u_int device, u_int func, char *name, size_t len)
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{
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struct pciio_drvname drvname;
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int rv;
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drvname.device = device;
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drvname.function = func;
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rv = ioctl(fd, PCI_IOC_DRVNAME, &drvname);
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if (rv == -1)
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return -1;
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strlcpy(name, drvname.name, len);
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return 0;
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}
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/*
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* pci_drvnameonbus:
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*
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* What's the driver name for a PCI device on any PCI bus?
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*/
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int
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pci_drvnameonbus(int fd, u_int bus, u_int device, u_int func, char *name,
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size_t len)
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{
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struct pciio_drvnameonbus drvname;
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int rv;
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drvname.bus = bus;
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drvname.device = device;
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drvname.function = func;
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rv = ioctl(fd, PCI_IOC_DRVNAMEONBUS, &drvname);
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if (rv == -1)
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return -1;
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strlcpy(name, drvname.name, len);
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return 0;
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}
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