410 lines
13 KiB
C
410 lines
13 KiB
C
/* $OpenBSD: pci_subr.c,v 1.22 2017/03/22 07:21:39 jsg Exp $ */
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/* $NetBSD: pci_subr.c,v 1.19 1996/10/13 01:38:29 christos 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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#include <dev/pci/pcidevs_data.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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const char *name;
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int val; /* as wide as pci_{,sub}class_t */
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const struct pci_class *subclasses;
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};
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const 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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const 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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{ "RAID", PCI_SUBCLASS_MASS_STORAGE_RAID, },
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{ "ATA", PCI_SUBCLASS_MASS_STORAGE_ATA, },
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{ "SATA", PCI_SUBCLASS_MASS_STORAGE_SATA, },
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{ "SAS", PCI_SUBCLASS_MASS_STORAGE_SAS, },
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{ "UFS", PCI_SUBCLASS_MASS_STORAGE_UFS, },
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{ "miscellaneous", PCI_SUBCLASS_MASS_STORAGE_MISC, },
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{ 0 },
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};
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const 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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{ "ATM", PCI_SUBCLASS_NETWORK_ATM, },
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{ "ISDN", PCI_SUBCLASS_NETWORK_ISDN, },
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{ "WorldFip", PCI_SUBCLASS_NETWORK_WORLDFIP, },
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{ "PCMIG Multi Computing", PCI_SUBCLASS_NETWORK_PCIMGMULTICOMP, },
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{ "InfiniBand", PCI_SUBCLASS_NETWORK_INFINIBAND, },
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{ "miscellaneous", PCI_SUBCLASS_NETWORK_MISC, },
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{ 0 },
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};
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const 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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{ "3D", PCI_SUBCLASS_DISPLAY_3D, },
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{ "miscellaneous", PCI_SUBCLASS_DISPLAY_MISC, },
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{ 0 },
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};
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const 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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{ "telephony", PCI_SUBCLASS_MULTIMEDIA_TELEPHONY, },
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{ "hdaudio", PCI_SUBCLASS_MULTIMEDIA_HDAUDIO, },
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{ "miscellaneous", PCI_SUBCLASS_MULTIMEDIA_MISC, },
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{ 0 },
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};
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const 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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const 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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{ "NuBus", PCI_SUBCLASS_BRIDGE_NUBUS, },
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{ "CardBus", PCI_SUBCLASS_BRIDGE_CARDBUS, },
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{ "RACEway", PCI_SUBCLASS_BRIDGE_RACEWAY, },
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{ "Semi-transparent PCI", PCI_SUBCLASS_BRIDGE_STPCI, },
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{ "InfiniBand", PCI_SUBCLASS_BRIDGE_INFINIBAND, },
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{ "miscellaneous", PCI_SUBCLASS_BRIDGE_MISC, },
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{ "advanced switching", PCI_SUBCLASS_BRIDGE_AS, },
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{ 0 },
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};
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const struct pci_class pci_subclass_communications[] = {
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{ "serial", PCI_SUBCLASS_COMMUNICATIONS_SERIAL, },
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{ "parallel", PCI_SUBCLASS_COMMUNICATIONS_PARALLEL, },
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{ "multi-port serial", PCI_SUBCLASS_COMMUNICATIONS_MPSERIAL, },
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{ "modem", PCI_SUBCLASS_COMMUNICATIONS_MODEM, },
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{ "GPIB", PCI_SUBCLASS_COMMUNICATIONS_GPIB, },
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{ "smartcard", PCI_SUBCLASS_COMMUNICATIONS_SMARTCARD, },
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{ "miscellaneous", PCI_SUBCLASS_COMMUNICATIONS_MISC, },
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{ 0 },
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};
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const struct pci_class pci_subclass_system[] = {
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{ "interrupt", PCI_SUBCLASS_SYSTEM_PIC, },
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{ "8237 DMA", PCI_SUBCLASS_SYSTEM_DMA, },
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{ "8254 timer", PCI_SUBCLASS_SYSTEM_TIMER, },
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{ "RTC", PCI_SUBCLASS_SYSTEM_RTC, },
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{ "PCI Hot-Plug", PCI_SUBCLASS_SYSTEM_PCIHOTPLUG, },
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{ "SD Host Controller", PCI_SUBCLASS_SYSTEM_SDHC, },
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{ "IOMMU", PCI_SUBCLASS_SYSTEM_IOMMU, },
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{ "root complex event", PCI_SUBCLASS_SYSTEM_ROOTCOMPEVENT, },
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{ "miscellaneous", PCI_SUBCLASS_SYSTEM_MISC, },
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{ 0 },
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};
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const struct pci_class pci_subclass_input[] = {
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{ "keyboard", PCI_SUBCLASS_INPUT_KEYBOARD, },
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{ "digitizer", PCI_SUBCLASS_INPUT_DIGITIZER, },
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{ "mouse", PCI_SUBCLASS_INPUT_MOUSE, },
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{ "scanner", PCI_SUBCLASS_INPUT_SCANNER, },
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{ "game port", PCI_SUBCLASS_INPUT_GAMEPORT, },
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{ "miscellaneous", PCI_SUBCLASS_INPUT_MISC, },
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{ 0 },
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};
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const struct pci_class pci_subclass_dock[] = {
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{ "generic", PCI_SUBCLASS_DOCK_GENERIC, },
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{ "miscellaneous", PCI_SUBCLASS_DOCK_MISC, },
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{ 0 },
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};
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const struct pci_class pci_subclass_processor[] = {
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{ "386", PCI_SUBCLASS_PROCESSOR_386, },
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{ "486", PCI_SUBCLASS_PROCESSOR_486, },
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{ "Pentium", PCI_SUBCLASS_PROCESSOR_PENTIUM, },
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{ "Alpha", PCI_SUBCLASS_PROCESSOR_ALPHA, },
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{ "PowerPC", PCI_SUBCLASS_PROCESSOR_POWERPC, },
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{ "MIPS", PCI_SUBCLASS_PROCESSOR_MIPS, },
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{ "Co-processor", PCI_SUBCLASS_PROCESSOR_COPROC, },
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{ 0 },
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};
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const struct pci_class pci_subclass_serialbus[] = {
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{ "Firewire", PCI_SUBCLASS_SERIALBUS_FIREWIRE, },
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{ "ACCESS.bus", PCI_SUBCLASS_SERIALBUS_ACCESS, },
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{ "SSA", PCI_SUBCLASS_SERIALBUS_SSA, },
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{ "USB", PCI_SUBCLASS_SERIALBUS_USB, },
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/* XXX Fiber Channel/_FIBRECHANNEL */
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{ "Fiber Channel", PCI_SUBCLASS_SERIALBUS_FIBER, },
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{ "SMBus", PCI_SUBCLASS_SERIALBUS_SMBUS, },
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{ "InfiniBand", PCI_SUBCLASS_SERIALBUS_INFINIBAND, },
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{ "IPMI", PCI_SUBCLASS_SERIALBUS_IPMI, },
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{ "SERCOS", PCI_SUBCLASS_SERIALBUS_SERCOS, },
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{ "CANbus", PCI_SUBCLASS_SERIALBUS_CANBUS, },
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{ 0 },
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};
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const struct pci_class pci_subclass_wireless[] = {
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{ "IrDA", PCI_SUBCLASS_WIRELESS_IRDA, },
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{ "Consumer IR", PCI_SUBCLASS_WIRELESS_CONSUMERIR, },
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{ "RF", PCI_SUBCLASS_WIRELESS_RF, },
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{ "bluetooth", PCI_SUBCLASS_WIRELESS_BLUETOOTH, },
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{ "broadband", PCI_SUBCLASS_WIRELESS_BROADBAND, },
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{ "802.11a (5 GHz)", PCI_SUBCLASS_WIRELESS_802_11A, },
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{ "802.11b (2.4 GHz)", PCI_SUBCLASS_WIRELESS_802_11B, },
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{ "miscellaneous", PCI_SUBCLASS_WIRELESS_MISC, },
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{ 0 },
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};
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const struct pci_class pci_subclass_i2o[] = {
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{ "standard", PCI_SUBCLASS_I2O_STANDARD, },
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{ 0 },
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};
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const struct pci_class pci_subclass_satcom[] = {
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{ "TV", PCI_SUBCLASS_SATCOM_TV, },
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{ "audio", PCI_SUBCLASS_SATCOM_AUDIO, },
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{ "voice", PCI_SUBCLASS_SATCOM_VOICE, },
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{ "data", PCI_SUBCLASS_SATCOM_DATA, },
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{ 0 },
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};
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const struct pci_class pci_subclass_crypto[] = {
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{ "network/computing", PCI_SUBCLASS_CRYPTO_NETCOMP, },
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{ "entertainment", PCI_SUBCLASS_CRYPTO_ENTERTAINMENT, },
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{ "miscellaneous", PCI_SUBCLASS_CRYPTO_MISC, },
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{ 0 },
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};
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const struct pci_class pci_subclass_dasp[] = {
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{ "DPIO", PCI_SUBCLASS_DASP_DPIO, },
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{ "Time and Frequency", PCI_SUBCLASS_DASP_TIMEFREQ, },
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{ "synchronization", PCI_SUBCLASS_DASP_SYNC, },
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{ "management", PCI_SUBCLASS_DASP_MGMT, },
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{ "miscellaneous", PCI_SUBCLASS_DASP_MISC, },
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{ 0 },
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};
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const 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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{ "communications", PCI_CLASS_COMMUNICATIONS,
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pci_subclass_communications, },
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{ "system", PCI_CLASS_SYSTEM,
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pci_subclass_system, },
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{ "input", PCI_CLASS_INPUT,
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pci_subclass_input, },
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{ "dock", PCI_CLASS_DOCK,
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pci_subclass_dock, },
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{ "processor", PCI_CLASS_PROCESSOR,
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pci_subclass_processor, },
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{ "serial bus", PCI_CLASS_SERIALBUS,
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pci_subclass_serialbus, },
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{ "wireless", PCI_CLASS_WIRELESS,
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pci_subclass_wireless, },
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{ "I2O", PCI_CLASS_I2O,
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pci_subclass_i2o, },
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{ "satellite comm", PCI_CLASS_SATCOM,
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pci_subclass_satcom, },
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{ "crypto", PCI_CLASS_CRYPTO,
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pci_subclass_crypto, },
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{ "DASP", PCI_CLASS_DASP,
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pci_subclass_dasp, },
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{ "accelerator", PCI_CLASS_ACCELERATOR,
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NULL, },
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{ "instrumentation", PCI_CLASS_INSTRUMENTATION,
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NULL, },
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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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const char *
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pci_findvendor(pcireg_t id_reg)
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{
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#ifdef PCIVERBOSE
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pci_vendor_id_t vendor = PCI_VENDOR(id_reg);
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const struct pci_known_vendor *kdp;
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kdp = pci_known_vendors;
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while (kdp->vendorname != NULL) { /* all have vendor name */
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if (kdp->vendor == vendor)
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break;
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kdp++;
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}
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return (kdp->vendorname);
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#else
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return (NULL);
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#endif
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}
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const char *
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pci_findproduct(pcireg_t id_reg)
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{
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#ifdef PCIVERBOSE
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pci_vendor_id_t vendor = PCI_VENDOR(id_reg);
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pci_product_id_t product = PCI_PRODUCT(id_reg);
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const struct pci_known_product *pkp;
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pkp = pci_known_products;
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while (pkp->productname != NULL) { /* all have product name */
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if (pkp->vendor == vendor && pkp->product == product)
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break;
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pkp++;
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}
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return (pkp->productname);
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#else
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return NULL;
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#endif
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}
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void
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pci_devinfo(pcireg_t id_reg, pcireg_t class_reg, int showclass, char *cp,
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size_t cp_max)
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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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const char *vendor_namep = NULL, *product_namep = NULL;
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const struct pci_class *classp, *subclassp;
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size_t cp_len = 0;
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#ifdef PCIVERBOSE
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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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vendor_namep = pci_findvendor(id_reg);
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if (vendor_namep != NULL)
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product_namep = pci_findproduct(id_reg);
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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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snprintf(cp, cp_max, "%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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snprintf(cp, cp_max, "\"%s %s\"", vendor_namep, product_namep);
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else
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snprintf(cp, cp_max, "vendor \"%s\", unknown product 0x%04x",
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vendor_namep, product);
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if (showclass && product_namep == NULL) {
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strlcat(cp, " (", cp_max);
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cp_len = strlen(cp);
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if (classp->name == NULL)
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snprintf(cp + cp_len, cp_max - cp_len,
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"unknown class 0x%02x, subclass 0x%02x",
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class, subclass);
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else if (subclassp == NULL || subclassp->name == NULL)
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snprintf(cp + cp_len, cp_max - cp_len,
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"class %s unknown subclass 0x%02x", classp->name,
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subclass);
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else
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snprintf(cp + cp_len, cp_max - cp_len,
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"class %s subclass %s", classp->name,
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subclassp->name);
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#if 0 /* not very useful */
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cp_len = strlen(cp);
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snprintf(cp + cp_len, cp_max - cp_len,
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", interface 0x%02x", interface);
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#endif
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cp_len = strlen(cp);
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snprintf(cp + cp_len, cp_max - cp_len,
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", rev 0x%02x)", revision);
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} else {
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cp_len = strlen(cp);
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snprintf(cp + cp_len, cp_max - cp_len, " rev 0x%02x",
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revision);
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}
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}
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