158 lines
4.5 KiB
C
158 lines
4.5 KiB
C
/* $NetBSD: pci_verbose.c,v 1.8 2011/08/29 14:47:08 jmcneill Exp $ */
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/*
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* Copyright (c) 1997 Zubin D. Dittia. All rights reserved.
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* Copyright (c) 1995, 1996, 1998, 2000
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* Christopher G. Demetriou. All rights reserved.
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* Copyright (c) 1994 Charles M. Hannum. 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles M. Hannum.
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* 4. 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, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* PCI autoconfiguration support functions.
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*
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* Note: This file is also built into a userland library (libpci).
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* Pay attention to this when you make modifications.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pci_verbose.c,v 1.8 2011/08/29 14:47:08 jmcneill Exp $");
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#include <sys/param.h>
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#ifdef _KERNEL
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#include <sys/module.h>
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#else
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#include <pci.h>
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#endif
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcidevs.h>
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#ifdef _KERNEL
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#include <dev/pci/pci_verbose.h>
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#endif
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/*
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* Descriptions of of known vendors and devices ("products").
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*/
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#include <dev/pci/pcidevs_data.h>
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#ifndef _KERNEL
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#include <string.h>
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#endif
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#ifdef _KERNEL
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static int pciverbose_modcmd(modcmd_t, void *);
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MODULE(MODULE_CLASS_MISC, pciverbose, "pci");
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static int
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pciverbose_modcmd(modcmd_t cmd, void *arg)
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{
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static const char *(*saved_findvendor)(pcireg_t);
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static const char *(*saved_findproduct)(pcireg_t);
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static const char *saved_unmatched;
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switch (cmd) {
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case MODULE_CMD_INIT:
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saved_findvendor = pci_findvendor;
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saved_findproduct = pci_findproduct;
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saved_unmatched = pci_unmatched;
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pci_findvendor = pci_findvendor_real;
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pci_findproduct = pci_findproduct_real;
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pci_unmatched = "unmatched ";
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pciverbose_loaded = 1;
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return 0;
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case MODULE_CMD_FINI:
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pci_findvendor = saved_findvendor;
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pci_findproduct = saved_findproduct;
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pci_unmatched = saved_unmatched;
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pciverbose_loaded = 0;
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return 0;
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default:
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return ENOTTY;
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}
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}
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#endif /* KERNEL */
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static const char *
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pci_untokenstring(const uint16_t *token, char *buf, size_t len)
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{
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char *cp = buf;
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buf[0] = '\0';
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for (; *token != 0; token++) {
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cp = buf + strlcat(buf, pci_words + *token, len - 2);
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cp[0] = ' ';
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cp[1] = '\0';
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}
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*cp = '\0';
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return cp != buf ? buf : NULL;
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}
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const char *
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pci_findvendor_real(pcireg_t id_reg)
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{
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static char buf[256];
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pci_vendor_id_t vendor = PCI_VENDOR(id_reg);
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size_t n;
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for (n = 0; n < __arraycount(pci_vendors); n++) {
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if (pci_vendors[n] == vendor)
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return pci_untokenstring(&pci_vendors[n+1], buf,
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sizeof(buf));
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/* Skip Tokens */
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n++;
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while (pci_vendors[n] != 0 && n < __arraycount(pci_vendors))
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n++;
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}
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return (NULL);
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}
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const char *
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pci_findproduct_real(pcireg_t id_reg)
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{
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static char buf[256];
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pci_vendor_id_t vendor = PCI_VENDOR(id_reg);
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pci_product_id_t product = PCI_PRODUCT(id_reg);
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size_t n;
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for (n = 0; n < __arraycount(pci_products); n++) {
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if (pci_products[n] == vendor && pci_products[n+1] == product)
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return pci_untokenstring(&pci_products[n+2], buf,
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sizeof(buf));
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/* Skip Tokens */
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n += 2;
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while (pci_products[n] != 0 && n < __arraycount(pci_products))
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n++;
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}
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return (NULL);
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}
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