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/* $OpenBSD: pci_subr.c,v 1.2 1996/04/18 23:48:03 niklas Exp $ */
/* $NetBSD: pci_subr.c,v 1.17 1996/03/02 02:28:48 cgd Exp $ */
/*
* Copyright (c) 1995, 1996 Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1994 Charles 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 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#ifdef PCIVERBOSE
#include <dev/pci/pcidevs.h>
#endif
/*
* Descriptions of known PCI classes and subclasses.
*
* Subclasses are described in the same way as classes, but have a
* NULL subclass pointer.
*/
struct pci_class {
char *name;
int val; /* as wide as pci_{,sub}class_t */
struct pci_class *subclasses;
};
struct pci_class pci_subclass_prehistoric[] = {
{ "miscellaneous", PCI_SUBCLASS_PREHISTORIC_MISC, },
{ "VGA", PCI_SUBCLASS_PREHISTORIC_VGA, },
{ 0 }
};
struct pci_class pci_subclass_mass_storage[] = {
{ "SCSI", PCI_SUBCLASS_MASS_STORAGE_SCSI, },
{ "IDE", PCI_SUBCLASS_MASS_STORAGE_IDE, },
{ "floppy", PCI_SUBCLASS_MASS_STORAGE_FLOPPY, },
{ "IPI", PCI_SUBCLASS_MASS_STORAGE_IPI, },
{ "miscellaneous", PCI_SUBCLASS_MASS_STORAGE_MISC, },
{ 0 },
};
struct pci_class pci_subclass_network[] = {
{ "ethernet", PCI_SUBCLASS_NETWORK_ETHERNET, },
{ "token ring", PCI_SUBCLASS_NETWORK_TOKENRING, },
{ "FDDI", PCI_SUBCLASS_NETWORK_FDDI, },
{ "miscellaneous", PCI_SUBCLASS_NETWORK_MISC, },
{ 0 },
};
struct pci_class pci_subclass_display[] = {
{ "VGA", PCI_SUBCLASS_DISPLAY_VGA, },
{ "XGA", PCI_SUBCLASS_DISPLAY_XGA, },
{ "miscellaneous", PCI_SUBCLASS_DISPLAY_MISC, },
{ 0 },
};
struct pci_class pci_subclass_multimedia[] = {
{ "video", PCI_SUBCLASS_MULTIMEDIA_VIDEO, },
{ "audio", PCI_SUBCLASS_MULTIMEDIA_AUDIO, },
{ "miscellaneous", PCI_SUBCLASS_MULTIMEDIA_MISC, },
{ 0 },
};
struct pci_class pci_subclass_memory[] = {
{ "RAM", PCI_SUBCLASS_MEMORY_RAM, },
{ "flash", PCI_SUBCLASS_MEMORY_FLASH, },
{ "miscellaneous", PCI_SUBCLASS_MEMORY_MISC, },
{ 0 },
};
struct pci_class pci_subclass_bridge[] = {
{ "host", PCI_SUBCLASS_BRIDGE_HOST, },
{ "ISA", PCI_SUBCLASS_BRIDGE_ISA, },
{ "EISA", PCI_SUBCLASS_BRIDGE_EISA, },
{ "MicroChannel", PCI_SUBCLASS_BRIDGE_MC, },
{ "PCI", PCI_SUBCLASS_BRIDGE_PCI, },
{ "PCMCIA", PCI_SUBCLASS_BRIDGE_PCMCIA, },
{ "miscellaneous", PCI_SUBCLASS_BRIDGE_MISC, },
{ 0 },
};
struct pci_class pci_class[] = {
{ "prehistoric", PCI_CLASS_PREHISTORIC,
pci_subclass_prehistoric, },
{ "mass storage", PCI_CLASS_MASS_STORAGE,
pci_subclass_mass_storage, },
{ "network", PCI_CLASS_NETWORK,
pci_subclass_network, },
{ "display", PCI_CLASS_DISPLAY,
pci_subclass_display, },
{ "multimedia", PCI_CLASS_MULTIMEDIA,
pci_subclass_multimedia, },
{ "memory", PCI_CLASS_MEMORY,
pci_subclass_memory, },
{ "bridge", PCI_CLASS_BRIDGE,
pci_subclass_bridge, },
{ "undefined", PCI_CLASS_UNDEFINED,
0, },
{ 0 },
};
#ifdef PCIVERBOSE
/*
* Descriptions of of known vendors and devices ("products").
*/
struct pci_knowndev {
pci_vendor_id_t vendor;
pci_product_id_t product;
int flags;
char *vendorname, *productname;
};
#define PCI_KNOWNDEV_NOPROD 0x01 /* match on vendor only */
#include <dev/pci/pcidevs_data.h>
#endif /* PCIVERBOSE */
void
pci_devinfo(id_reg, class_reg, showclass, cp)
pcireg_t id_reg, class_reg;
int showclass;
char *cp;
{
pci_vendor_id_t vendor;
pci_product_id_t product;
pci_class_t class;
pci_subclass_t subclass;
pci_interface_t interface;
pci_revision_t revision;
char *vendor_namep, *product_namep;
struct pci_class *classp, *subclassp;
#ifdef PCIVERBOSE
struct pci_knowndev *kdp;
const char *unmatched = "unknown ";
#else
const char *unmatched = "";
#endif
vendor = PCI_VENDOR(id_reg);
product = PCI_PRODUCT(id_reg);
class = PCI_CLASS(class_reg);
subclass = PCI_SUBCLASS(class_reg);
interface = PCI_INTERFACE(class_reg);
revision = PCI_REVISION(class_reg);
#ifdef PCIVERBOSE
kdp = pci_knowndevs;
while (kdp->vendorname != NULL) { /* all have vendor name */
if (kdp->vendor == vendor && (kdp->product == product ||
(kdp->flags & PCI_KNOWNDEV_NOPROD) != 0))
break;
kdp++;
}
if (kdp->vendorname == NULL)
vendor_namep = product_namep = NULL;
else {
vendor_namep = kdp->vendorname;
product_namep = (kdp->flags & PCI_KNOWNDEV_NOPROD) == 0 ?
kdp->productname : NULL;
}
#else /* PCIVERBOSE */
vendor_namep = product_namep = NULL;
#endif /* PCIVERBOSE */
classp = pci_class;
while (classp->name != NULL) {
if (class == classp->val)
break;
classp++;
}
subclassp = (classp->name != NULL) ? classp->subclasses : NULL;
while (subclassp && subclassp->name != NULL) {
if (subclass == subclassp->val)
break;
subclassp++;
}
if (vendor_namep == NULL)
cp += sprintf(cp, "%svendor 0x%04x product 0x%04x",
unmatched, vendor, product);
else if (product_namep != NULL)
cp += sprintf(cp, "%s %s", vendor_namep, product_namep);
else
cp += sprintf(cp, "vendor %s, unknown product 0x%x",
vendor_namep, product);
if (showclass) {
cp += sprintf(cp, " (");
if (classp->name == NULL)
cp += sprintf(cp,
"unknown class 0x%2x, subclass 0x%02x",
class, subclass);
else {
cp += sprintf(cp, "class %s, ", classp->name);
if (subclassp == NULL || subclassp->name == NULL)
cp += sprintf(cp, "unknown subclass 0x%02x",
subclass);
else
cp += sprintf(cp, "subclass %s",
subclassp->name);
}
#if 0 /* not very useful */
cp += sprintf(cp, ", interface 0x%02x", interface);
#endif
cp += sprintf(cp, ", revision 0x%02x)", revision);
}
}
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