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* $Id: filter.c,v 1.1 1999/01/22 21:05:22 mj Exp $
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* Linux PCI Library -- Device Filtering
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* Copyright (c) 1998--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
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* Can be freely distributed and used under the terms of the GNU GPL.
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pci_filter_init(struct pci_access * UNUSED a, struct pci_filter *f)
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f->bus = f->slot = f->func = -1;
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f->vendor = f->device = -1;
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/* Slot filter syntax: [[bus]:][slot][.[func]] */
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pci_filter_parse_slot(struct pci_filter *f, char *str)
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char *colon = strchr(str, ':');
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char *dot = strchr((colon ? colon + 1 : str), '.');
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if (str[0] && strcmp(str, "*"))
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long int x = strtol(str, &e, 16);
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if ((e && *e) || (x < 0 || x >= 0xff))
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return "Invalid bus number";
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if (mid[0] && strcmp(mid, "*"))
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long int x = strtol(mid, &e, 16);
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if ((e && *e) || (x < 0 || x >= 0x1f))
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return "Invalid slot number";
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if (dot && dot[0] && strcmp(dot, "*"))
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long int x = strtol(dot, &e, 16);
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if ((e && *e) || (x < 0 || x >= 7))
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return "Invalid function number";
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/* ID filter syntax: [vendor]:[device] */
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pci_filter_parse_id(struct pci_filter *f, char *str)
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return "':' expected";
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if (str[0] && strcmp(str, "*"))
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long int x = strtol(str, &e, 16);
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if ((e && *e) || (x < 0 || x >= 0xffff))
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return "Invalid vendor ID";
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if (s[0] && strcmp(s, "*"))
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long int x = strtol(s, &e, 16);
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if ((e && *e) || (x < 0 || x >= 0xffff))
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return "Invalid device ID";
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pci_filter_match(struct pci_filter *f, struct pci_dev *d)
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if ((f->bus >= 0 && f->bus != d->bus) ||
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(f->slot >= 0 && f->slot != d->dev) ||
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(f->func >= 0 && f->func != d->func))
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if (f->device >= 0 || f->vendor >= 0)
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pci_fill_info(d, PCI_FILL_IDENT);
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if ((f->device >= 0 && f->device != d->device_id) ||
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(f->vendor >= 0 && f->vendor != d->vendor_id))