minix/sys/dev/pci/pci_verbose.c

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/* $NetBSD: pci_verbose.c,v 1.8 2011/08/29 14:47:08 jmcneill Exp $ */
/*
* Copyright (c) 1997 Zubin D. Dittia. All rights reserved.
* Copyright (c) 1995, 1996, 1998, 2000
* Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1994 Charles M. Hannum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles M. Hannum.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* PCI autoconfiguration support functions.
*
* Note: This file is also built into a userland library (libpci).
* Pay attention to this when you make modifications.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pci_verbose.c,v 1.8 2011/08/29 14:47:08 jmcneill Exp $");
#include <sys/param.h>
#ifdef _KERNEL
#include <sys/module.h>
#else
#include <pci.h>
#endif
#include <dev/pci/pcireg.h>
#include <dev/pci/pcidevs.h>
#ifdef _KERNEL
#include <dev/pci/pci_verbose.h>
#endif
/*
* Descriptions of of known vendors and devices ("products").
*/
#include <dev/pci/pcidevs_data.h>
#ifndef _KERNEL
#include <string.h>
#endif
#ifdef _KERNEL
static int pciverbose_modcmd(modcmd_t, void *);
MODULE(MODULE_CLASS_MISC, pciverbose, "pci");
static int
pciverbose_modcmd(modcmd_t cmd, void *arg)
{
static const char *(*saved_findvendor)(pcireg_t);
static const char *(*saved_findproduct)(pcireg_t);
static const char *saved_unmatched;
switch (cmd) {
case MODULE_CMD_INIT:
saved_findvendor = pci_findvendor;
saved_findproduct = pci_findproduct;
saved_unmatched = pci_unmatched;
pci_findvendor = pci_findvendor_real;
pci_findproduct = pci_findproduct_real;
pci_unmatched = "unmatched ";
pciverbose_loaded = 1;
return 0;
case MODULE_CMD_FINI:
pci_findvendor = saved_findvendor;
pci_findproduct = saved_findproduct;
pci_unmatched = saved_unmatched;
pciverbose_loaded = 0;
return 0;
default:
return ENOTTY;
}
}
#endif /* KERNEL */
static const char *
pci_untokenstring(const uint16_t *token, char *buf, size_t len)
{
char *cp = buf;
buf[0] = '\0';
for (; *token != 0; token++) {
cp = buf + strlcat(buf, pci_words + *token, len - 2);
cp[0] = ' ';
cp[1] = '\0';
}
*cp = '\0';
return cp != buf ? buf : NULL;
}
const char *
pci_findvendor_real(pcireg_t id_reg)
{
static char buf[256];
pci_vendor_id_t vendor = PCI_VENDOR(id_reg);
size_t n;
for (n = 0; n < __arraycount(pci_vendors); n++) {
if (pci_vendors[n] == vendor)
return pci_untokenstring(&pci_vendors[n+1], buf,
sizeof(buf));
/* Skip Tokens */
n++;
while (pci_vendors[n] != 0 && n < __arraycount(pci_vendors))
n++;
}
return (NULL);
}
const char *
pci_findproduct_real(pcireg_t id_reg)
{
static char buf[256];
pci_vendor_id_t vendor = PCI_VENDOR(id_reg);
pci_product_id_t product = PCI_PRODUCT(id_reg);
size_t n;
for (n = 0; n < __arraycount(pci_products); n++) {
if (pci_products[n] == vendor && pci_products[n+1] == product)
return pci_untokenstring(&pci_products[n+2], buf,
sizeof(buf));
/* Skip Tokens */
n += 2;
while (pci_products[n] != 0 && n < __arraycount(pci_products))
n++;
}
return (NULL);
}