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