pcivar.h revision 1.24
1 /* $NetBSD: pcivar.h,v 1.24 1997/07/17 01:01:06 jtk 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 + i386 != 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 i386 66 #include <i386/pci/pci_machdep.h> 67 #endif 68 69 /* 70 * PCI bus attach arguments. 71 */ 72 struct pcibus_attach_args { 73 char *pba_busname; /* XXX should be common */ 74 bus_space_tag_t pba_iot; /* pci i/o space tag */ 75 bus_space_tag_t pba_memt; /* pci mem space tag */ 76 bus_dma_tag_t pba_dmat; /* DMA tag */ 77 pci_chipset_tag_t pba_pc; 78 int pba_flags; /* flags; see below */ 79 80 int pba_bus; /* PCI bus number */ 81 82 /* 83 * Interrupt swizzling information. These fields 84 * are only used by secondary busses. 85 */ 86 u_int pba_intrswiz; /* how to swizzle pins */ 87 pcitag_t pba_intrtag; /* intr. appears to come from here */ 88 }; 89 90 /* 91 * PCI device attach arguments. 92 */ 93 struct pci_attach_args { 94 bus_space_tag_t pa_iot; /* pci i/o space tag */ 95 bus_space_tag_t pa_memt; /* pci mem space tag */ 96 bus_dma_tag_t pa_dmat; /* DMA tag */ 97 pci_chipset_tag_t pa_pc; 98 int pa_flags; /* flags; see below */ 99 100 u_int pa_device; 101 u_int pa_function; 102 pcitag_t pa_tag; 103 pcireg_t pa_id, pa_class; 104 105 /* 106 * Interrupt information. 107 * 108 * "Intrline" is used on systems whose firmware puts 109 * the right routing data into the line register in 110 * configuration space. The rest are used on systems 111 * that do not. 112 */ 113 u_int pa_intrswiz; /* how to swizzle pins if ppb */ 114 pcitag_t pa_intrtag; /* intr. appears to come from here */ 115 pci_intr_pin_t pa_intrpin; /* intr. appears on this pin */ 116 pci_intr_line_t pa_intrline; /* intr. routing information */ 117 }; 118 119 /* 120 * Flags given in the bus and device attachment args. 121 */ 122 #define PCI_FLAGS_IO_ENABLED 0x01 /* I/O space is enabled */ 123 #define PCI_FLAGS_MEM_ENABLED 0x02 /* memory space is enabled */ 124 125 #include "locators.h" 126 127 /* 128 * Locators devices that attach to 'pcibus', as specified to config. 129 */ 130 #define pcibuscf_bus cf_loc[PCIBUSCF_BUS] 131 #define PCIBUS_UNK_BUS PCIBUSCF_BUS_DEFAULT /* wildcarded 'bus' */ 132 133 /* 134 * Locators for PCI devices, as specified to config. 135 */ 136 #define pcicf_dev cf_loc[PCICF_DEV] 137 #define PCI_UNK_DEV PCICF_DEV_DEFAULT /* wildcarded 'dev' */ 138 139 #define pcicf_function cf_loc[PCICF_FUNCTION] 140 #define PCI_UNK_FUNCTION PCICF_FUNCTION_DEFAULT /* wildcarded 'function' */ 141 142 /* 143 * Configuration space access and utility functions. (Note that most, 144 * e.g. make_tag, conf_read, conf_write are declared by pci_machdep.h.) 145 */ 146 int pci_mapreg_info __P((pci_chipset_tag_t, pcitag_t, int, pcireg_t, 147 bus_addr_t *, bus_size_t *, int *)); 148 int pci_mapreg_map __P((struct pci_attach_args *, int, pcireg_t, int, 149 bus_space_tag_t *, bus_space_handle_t *, bus_addr_t *, 150 bus_size_t *)); 151 152 /* 153 * Helper functions for autoconfiguration. 154 */ 155 void pci_devinfo __P((pcireg_t, pcireg_t, int, char *)); 156 void set_pci_isa_bridge_callback __P((void (*)(void *), void *)); 157 158 /* 159 * Backward compatibility functions. NO NEW CODE SHOULD USE THESE. 160 * 161 * pci_io_find() and pci_mem_find() deprecated as of April 13, 1997. 162 */ 163 int pci_io_find __P((pci_chipset_tag_t, pcitag_t, int, bus_addr_t *, 164 bus_size_t *)); 165 int pci_mem_find __P((pci_chipset_tag_t, pcitag_t, int, bus_addr_t *, 166 bus_size_t *, int *)); 167 168 #endif /* _DEV_PCI_PCIVAR_H_ */ 169
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