c4640b104d
vendor & product IDs and class information, which is printed if device isn't found. Optionally (via "PCIVERBOSE" option) does table lookup to try to see if it knows what the device really is (informational only...).
312 lines
8.8 KiB
C
312 lines
8.8 KiB
C
/* $NetBSD: pci_subr.c,v 1.10 1995/06/18 01:28:23 cgd Exp $ */
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/*
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* Copyright (c) 1995 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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int
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pciprint(aux, pci)
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void *aux;
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char *pci;
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{
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register struct pci_attach_args *pa = aux;
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printf(" bus %d device %d", pa->pa_bus, pa->pa_device);
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return (UNCONF);
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}
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int
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pcisubmatch(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct cfdata *cf = match;
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struct pci_attach_args *pa = aux;
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if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != pa->pa_bus)
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return 0;
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if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != pa->pa_device)
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return 0;
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return ((*cf->cf_driver->cd_match)(parent, match, aux));
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}
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/*
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* Try to find and attach the PCI device at the give bus and device number.
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* Return 1 if successful, 0 if unsuccessful.
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*/
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int
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pci_attach_subdev(pcidev, bus, device)
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struct device *pcidev;
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int bus, device;
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{
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pcitag_t tag;
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pcireg_t id, class;
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struct pci_attach_args pa;
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struct cfdata *cf;
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int supported;
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char devinfo[256];
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tag = pci_make_tag(bus, device, 0);
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id = pci_conf_read(tag, PCI_ID_REG);
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if (id == 0 || id == 0xffffffff)
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return (0);
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class = pci_conf_read(tag, PCI_CLASS_REG);
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pa.pa_bus = bus;
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pa.pa_device = device;
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pa.pa_tag = tag;
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pa.pa_id = id;
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pa.pa_class = class;
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#if defined(PCIVERBOSE) && 0 /* _too_ verbose */
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pci_devinfo(id, class, devinfo, NULL);
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printf("%s bus %d device %d: %s\n", pcidev->dv_xname, bus,
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device, devinfo);
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#endif /* _too_ verbose */
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if ((cf = config_search(pcisubmatch, pcidev, &pa)) != NULL)
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config_attach(pcidev, cf, &pa, pciprint);
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else {
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pci_devinfo(id, class, devinfo, &supported);
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printf("%s bus %d device %d: %s not %s\n", pcidev->dv_xname,
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bus, device, devinfo,
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supported ? "configured" : "supported");
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return (0);
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}
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return (1);
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}
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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_network, },
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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_UNSUPP 0x01 /* unsupported device */
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#define PCI_KNOWNDEV_NOPROD 0x02 /* 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, cp, supp)
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pcireg_t id_reg, class_reg;
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char *cp;
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int *supp;
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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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#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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if (supp != NULL)
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*supp = 0;
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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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if (supp != NULL)
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*supp = (kdp->flags & PCI_KNOWNDEV_UNSUPP) == 0;
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}
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#else /* PCIVERBOSE */
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vendor_namep = product_namep = NULL;
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if (supp != NULL)
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*supp = 1; /* always say 'not configured' */
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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, "unknown vendor/product: 0x%04x/0x%04x",
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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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cp += sprintf(cp, " (");
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if (classp->name == NULL)
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cp += sprintf(cp, "unknown class/subclass: 0x%02x/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->name == NULL)
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cp += sprintf(cp, "unknown subclass: 0x%02x", subclass);
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else
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cp += sprintf(cp, "subclass: %s", 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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