eisa_pci.c revision 119285
118334Speter/*- 2132718Skan * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier 3169689Skan * Copyright (c) 2000 Michael Smith <msmith@freebsd.org> 418334Speter * Copyright (c) 2000 BSDi 590075Sobrien * All rights reserved. 618334Speter * 790075Sobrien * Redistribution and use in source and binary forms, with or without 890075Sobrien * modification, are permitted provided that the following conditions 990075Sobrien * are met: 1090075Sobrien * 1. Redistributions of source code must retain the above copyright 1118334Speter * notice, this list of conditions and the following disclaimer. 1290075Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1390075Sobrien * notice, this list of conditions and the following disclaimer in the 1490075Sobrien * documentation and/or other materials provided with the distribution. 1590075Sobrien * 3. The name of the author may not be used to endorse or promote products 1618334Speter * derived from this software without specific prior written permission. 1718334Speter * 1890075Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19169689Skan * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20169689Skan * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2118334Speter * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2218334Speter * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2318334Speter * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2418334Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2518334Speter * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2690075Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2790075Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2818334Speter * SUCH DAMAGE. 2990075Sobrien * 3090075Sobrien * $FreeBSD: head/sys/dev/pci/eisa_pci.c 119285 2003-08-22 06:42:59Z imp $ 3118334Speter */ 3290075Sobrien 3390075Sobrien/* 3418334Speter * PCI:EISA bridge support 3590075Sobrien */ 3690075Sobrien 3718334Speter#include <sys/param.h> 3890075Sobrien#include <sys/kernel.h> 3990075Sobrien#include <sys/bus.h> 4018334Speter 4190075Sobrien#include <dev/pci/pcivar.h> 4290075Sobrien#include <dev/pci/pcireg.h> 4390075Sobrien 4418334Speterstatic int eisab_probe(device_t dev); 4590075Sobrienstatic int eisab_attach(device_t dev); 4690075Sobrien 4718334Speterstatic device_method_t eisab_methods[] = { 4890075Sobrien /* Device interface */ 4918334Speter DEVMETHOD(device_probe, eisab_probe), 5090075Sobrien DEVMETHOD(device_attach, eisab_attach), 5118334Speter DEVMETHOD(device_shutdown, bus_generic_shutdown), 5290075Sobrien DEVMETHOD(device_suspend, bus_generic_suspend), 5318334Speter DEVMETHOD(device_resume, bus_generic_resume), 5490075Sobrien 5590075Sobrien /* Bus interface */ 5618334Speter DEVMETHOD(bus_print_child, bus_generic_print_child), 57169689Skan DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), 5818334Speter DEVMETHOD(bus_release_resource, bus_generic_release_resource), 5990075Sobrien DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 60169689Skan DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 6118334Speter DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 6290075Sobrien DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 6390075Sobrien 6490075Sobrien { 0, 0 } 6590075Sobrien}; 6690075Sobrien 6790075Sobrienstatic driver_t eisab_driver = { 6890075Sobrien "eisab", 6990075Sobrien eisab_methods, 7090075Sobrien 0, 7190075Sobrien}; 7290075Sobrien 7390075Sobrienstatic devclass_t eisab_devclass; 7490075Sobrien 7590075SobrienDRIVER_MODULE(eisab, pci, eisab_driver, eisab_devclass, 0, 0); 7618334Speter 7718334Speterstatic int 7818334Spetereisab_probe(device_t dev) 7918334Speter{ 8018334Speter int matched = 0; 8118334Speter 8290075Sobrien /* 8390075Sobrien * Generic match by class/subclass. 8490075Sobrien */ 8518334Speter if ((pci_get_class(dev) == PCIC_BRIDGE) && 86132718Skan (pci_get_subclass(dev) == PCIS_BRIDGE_EISA)) 8750397Sobrien matched = 1; 88132718Skan 89132718Skan /* 9018334Speter * Some bridges don't correctly report their class. 9190075Sobrien */ 9290075Sobrien switch (pci_get_devid(dev)) { 9318334Speter case 0x04828086: /* may show up as PCI-HOST or 0:0 */ 9490075Sobrien matched = 1; 9590075Sobrien break; 9690075Sobrien default: 9718334Speter break; 9818334Speter } 9918334Speter 100132718Skan if (matched) { 101132718Skan device_set_desc(dev, "PCI-EISA bridge"); 10218334Speter return(-10000); 10318334Speter } 10418334Speter return(ENXIO); 10518334Speter} 10618334Speter 10718334Speterstatic int 10818334Spetereisab_attach(device_t dev) 10918334Speter{ 11018334Speter /* 11118334Speter * Attach an EISA bus. Note that we can only have one EISA bus. 11218334Speter */ 11318334Speter if (!devclass_get_device(devclass_find("eisa"), 0)) 11490075Sobrien device_add_child(dev, "eisa", -1); 11590075Sobrien 11690075Sobrien /* 11790075Sobrien * Attach an ISA bus as well, since the EISA bus may have ISA 11890075Sobrien * cards installed, and we may have no EISA support in the system. 11990075Sobrien */ 12090075Sobrien if (!devclass_get_device(devclass_find("isa"), 0)) 12190075Sobrien device_add_child(dev, "isa", -1); 12290075Sobrien 12390075Sobrien bus_generic_attach(dev); 12490075Sobrien 12590075Sobrien return(0); 12690075Sobrien} 12790075Sobrien 12890075Sobrien