pci_machdep.c revision 1.15.2.2
1 1.15.2.2 elric /* $NetBSD: pci_machdep.c,v 1.15.2.2 2001/07/16 00:55:18 elric Exp $ */ 2 1.15.2.2 elric 3 1.15.2.2 elric /* 4 1.15.2.2 elric * Copyright (c) 1995, 1996 Carnegie-Mellon University. 5 1.15.2.2 elric * All rights reserved. 6 1.15.2.2 elric * 7 1.15.2.2 elric * Author: Chris G. Demetriou 8 1.15.2.2 elric * 9 1.15.2.2 elric * Permission to use, copy, modify and distribute this software and 10 1.15.2.2 elric * its documentation is hereby granted, provided that both the copyright 11 1.15.2.2 elric * notice and this permission notice appear in all copies of the 12 1.15.2.2 elric * software, derivative works or modified versions, and any portions 13 1.15.2.2 elric * thereof, and that both notices appear in supporting documentation. 14 1.15.2.2 elric * 15 1.15.2.2 elric * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 1.15.2.2 elric * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 1.15.2.2 elric * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 1.15.2.2 elric * 19 1.15.2.2 elric * Carnegie Mellon requests users of this software to return to 20 1.15.2.2 elric * 21 1.15.2.2 elric * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 22 1.15.2.2 elric * School of Computer Science 23 1.15.2.2 elric * Carnegie Mellon University 24 1.15.2.2 elric * Pittsburgh PA 15213-3890 25 1.15.2.2 elric * 26 1.15.2.2 elric * any improvements or extensions that they make and grant Carnegie the 27 1.15.2.2 elric * rights to redistribute these changes. 28 1.15.2.2 elric */ 29 1.15.2.2 elric 30 1.15.2.2 elric /* 31 1.15.2.2 elric * Machine-specific functions for PCI autoconfiguration. 32 1.15.2.2 elric */ 33 1.15.2.2 elric 34 1.15.2.2 elric #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 35 1.15.2.2 elric 36 1.15.2.2 elric __KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.15.2.2 2001/07/16 00:55:18 elric Exp $"); 37 1.15.2.2 elric 38 1.15.2.2 elric #include <sys/types.h> 39 1.15.2.2 elric #include <sys/param.h> 40 1.15.2.2 elric #include <sys/time.h> 41 1.15.2.2 elric #include <sys/systm.h> 42 1.15.2.2 elric #include <sys/errno.h> 43 1.15.2.2 elric #include <sys/device.h> 44 1.15.2.2 elric 45 1.15.2.2 elric #include <uvm/uvm_extern.h> 46 1.15.2.2 elric 47 1.15.2.2 elric #include <dev/isa/isavar.h> 48 1.15.2.2 elric #include <dev/pci/pcireg.h> 49 1.15.2.2 elric #include <dev/pci/pcivar.h> 50 1.15.2.2 elric #include <dev/pci/pcidevs.h> 51 1.15.2.2 elric 52 1.15.2.2 elric #include "vga_pci.h" 53 1.15.2.2 elric #if NVGA_PCI 54 1.15.2.2 elric #include <dev/ic/mc6845reg.h> 55 1.15.2.2 elric #include <dev/ic/pcdisplayvar.h> 56 1.15.2.2 elric #include <dev/pci/vga_pcivar.h> 57 1.15.2.2 elric #endif 58 1.15.2.2 elric 59 1.15.2.2 elric #include "tga.h" 60 1.15.2.2 elric #if NTGA 61 1.15.2.2 elric #include <dev/pci/tgavar.h> 62 1.15.2.2 elric #endif 63 1.15.2.2 elric 64 1.15.2.2 elric void 65 1.15.2.2 elric pci_display_console(iot, memt, pc, bus, device, function) 66 1.15.2.2 elric bus_space_tag_t iot, memt; 67 1.15.2.2 elric pci_chipset_tag_t pc; 68 1.15.2.2 elric int bus, device, function; 69 1.15.2.2 elric { 70 1.15.2.2 elric pcitag_t tag; 71 1.15.2.2 elric pcireg_t id, class; 72 1.15.2.2 elric int match, nmatch; 73 1.15.2.2 elric int (*fn) __P((bus_space_tag_t, bus_space_tag_t, pci_chipset_tag_t, 74 1.15.2.2 elric int, int, int)); 75 1.15.2.2 elric 76 1.15.2.2 elric tag = pci_make_tag(pc, bus, device, function); 77 1.15.2.2 elric id = pci_conf_read(pc, tag, PCI_ID_REG); 78 1.15.2.2 elric if (id == 0 || id == 0xffffffff) 79 1.15.2.2 elric panic("pci_display_console: no device at %d/%d/%d", 80 1.15.2.2 elric bus, device, function); 81 1.15.2.2 elric class = pci_conf_read(pc, tag, PCI_CLASS_REG); 82 1.15.2.2 elric 83 1.15.2.2 elric nmatch = match = 0; /* XXX really only if we've got FBs configured */ 84 1.15.2.2 elric fn = NULL; 85 1.15.2.2 elric 86 1.15.2.2 elric #if NVGA_PCI 87 1.15.2.2 elric nmatch = DEVICE_IS_VGA_PCI(class, id); 88 1.15.2.2 elric if (nmatch > match) { 89 1.15.2.2 elric match = nmatch; 90 1.15.2.2 elric fn = vga_pci_cnattach; 91 1.15.2.2 elric } 92 1.15.2.2 elric #endif 93 1.15.2.2 elric #if NTGA 94 1.15.2.2 elric nmatch = DEVICE_IS_TGA(class, id); 95 1.15.2.2 elric if (nmatch > match) 96 1.15.2.2 elric nmatch = tga_cnmatch(iot, memt, pc, tag); 97 1.15.2.2 elric if (nmatch > match) { 98 1.15.2.2 elric match = nmatch; 99 1.15.2.2 elric fn = tga_cnattach; 100 1.15.2.2 elric } 101 1.15.2.2 elric #endif 102 1.15.2.2 elric 103 1.15.2.2 elric if (fn != NULL) 104 1.15.2.2 elric (*fn)(iot, memt, pc, bus, device, function); 105 1.15.2.2 elric else 106 1.15.2.2 elric panic("pci_display_console: unconfigured device at %d/%d/%d", 107 1.15.2.2 elric bus, device, function); 108 1.15.2.2 elric } 109
Indexes created Sat Oct 25 10:09:55 GMT 2025