/* $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 #include #include #include #include #ifdef PCIVERBOSE #include #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 #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); } }