pcivar.h revision 1.30
1 /* $NetBSD: pcivar.h,v 1.30 1998/05/15 12:35:06 tsubai Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved. 5 * Copyright (c) 1994 Charles Hannum. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Charles Hannum. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef _DEV_PCI_PCIVAR_H_ 34 #define _DEV_PCI_PCIVAR_H_ 35 36 /* 37 * Definitions for PCI autoconfiguration. 38 * 39 * This file describes types and functions which are used for PCI 40 * configuration. Some of this information is machine-specific, and is 41 * provided by pci_machdep.h. 42 */ 43 44 #include <machine/bus.h> 45 #include <dev/pci/pcireg.h> 46 47 /* 48 * Structures and definitions needed by the machine-dependent header. 49 */ 50 typedef u_int32_t pcireg_t; /* configuration space register XXX */ 51 struct pcibus_attach_args; 52 53 /* 54 * Machine-dependent definitions. 55 */ 56 #if (alpha + atari + bebox + i386 + macppc != 1) 57 ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE. 58 #endif 59 #if alpha 60 #include <alpha/pci/pci_machdep.h> 61 #endif 62 #if atari 63 #include <atari/pci/pci_machdep.h> 64 #endif 65 #if bebox 66 #include <bebox/pci/pci_machdep.h> 67 #endif 68 #if i386 69 #include <i386/pci/pci_machdep.h> 70 #endif 71 #if macppc 72 #include <macppc/pci/pci_machdep.h> 73 #endif 74 75 /* 76 * PCI bus attach arguments. 77 */ 78 struct pcibus_attach_args { 79 char *pba_busname; /* XXX should be common */ 80 bus_space_tag_t pba_iot; /* pci i/o space tag */ 81 bus_space_tag_t pba_memt; /* pci mem space tag */ 82 bus_dma_tag_t pba_dmat; /* DMA tag */ 83 pci_chipset_tag_t pba_pc; 84 int pba_flags; /* flags; see below */ 85 86 int pba_bus; /* PCI bus number */ 87 88 /* 89 * Interrupt swizzling information. These fields 90 * are only used by secondary busses. 91 */ 92 u_int pba_intrswiz; /* how to swizzle pins */ 93 pcitag_t pba_intrtag; /* intr. appears to come from here */ 94 }; 95 96 /* 97 * PCI device attach arguments. 98 */ 99 struct pci_attach_args { 100 bus_space_tag_t pa_iot; /* pci i/o space tag */ 101 bus_space_tag_t pa_memt; /* pci mem space tag */ 102 bus_dma_tag_t pa_dmat; /* DMA tag */ 103 pci_chipset_tag_t pa_pc; 104 int pa_flags; /* flags; see below */ 105 106 u_int pa_device; 107 u_int pa_function; 108 pcitag_t pa_tag; 109 pcireg_t pa_id, pa_class; 110 111 /* 112 * Interrupt information. 113 * 114 * "Intrline" is used on systems whose firmware puts 115 * the right routing data into the line register in 116 * configuration space. The rest are used on systems 117 * that do not. 118 */ 119 u_int pa_intrswiz; /* how to swizzle pins if ppb */ 120 pcitag_t pa_intrtag; /* intr. appears to come from here */ 121 pci_intr_pin_t pa_intrpin; /* intr. appears on this pin */ 122 pci_intr_line_t pa_intrline; /* intr. routing information */ 123 }; 124 125 /* 126 * Flags given in the bus and device attachment args. 127 */ 128 #define PCI_FLAGS_IO_ENABLED 0x01 /* I/O space is enabled */ 129 #define PCI_FLAGS_MEM_ENABLED 0x02 /* memory space is enabled */ 130 131 #include "locators.h" 132 133 /* 134 * Locators devices that attach to 'pcibus', as specified to config. 135 */ 136 #define pcibuscf_bus cf_loc[PCIBUSCF_BUS] 137 #define PCIBUS_UNK_BUS PCIBUSCF_BUS_DEFAULT /* wildcarded 'bus' */ 138 139 /* 140 * Locators for PCI devices, as specified to config. 141 */ 142 #define pcicf_dev cf_loc[PCICF_DEV] 143 #define PCI_UNK_DEV PCICF_DEV_DEFAULT /* wildcarded 'dev' */ 144 145 #define pcicf_function cf_loc[PCICF_FUNCTION] 146 #define PCI_UNK_FUNCTION PCICF_FUNCTION_DEFAULT /* wildcarded 'function' */ 147 148 /* 149 * Configuration space access and utility functions. (Note that most, 150 * e.g. make_tag, conf_read, conf_write are declared by pci_machdep.h.) 151 */ 152 int pci_mapreg_info __P((pci_chipset_tag_t, pcitag_t, int, pcireg_t, 153 bus_addr_t *, bus_size_t *, int *)); 154 int pci_mapreg_map __P((struct pci_attach_args *, int, pcireg_t, int, 155 bus_space_tag_t *, bus_space_handle_t *, bus_addr_t *, 156 bus_size_t *)); 157 158 /* 159 * Helper functions for autoconfiguration. 160 */ 161 void pci_devinfo __P((pcireg_t, pcireg_t, int, char *)); 162 void pci_conf_print __P((pci_chipset_tag_t, pcitag_t)); 163 void set_pci_isa_bridge_callback __P((void (*)(void *), void *)); 164 165 #endif /* _DEV_PCI_PCIVAR_H_ */ 166
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