pcivar.h revision 1.28
1 /* $NetBSD: pcivar.h,v 1.28 1997/10/14 07:15:47 sakamoto 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 != 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 72 /* 73 * PCI bus attach arguments. 74 */ 75 struct pcibus_attach_args { 76 char *pba_busname; /* XXX should be common */ 77 bus_space_tag_t pba_iot; /* pci i/o space tag */ 78 bus_space_tag_t pba_memt; /* pci mem space tag */ 79 bus_dma_tag_t pba_dmat; /* DMA tag */ 80 pci_chipset_tag_t pba_pc; 81 int pba_flags; /* flags; see below */ 82 83 int pba_bus; /* PCI bus number */ 84 85 /* 86 * Interrupt swizzling information. These fields 87 * are only used by secondary busses. 88 */ 89 u_int pba_intrswiz; /* how to swizzle pins */ 90 pcitag_t pba_intrtag; /* intr. appears to come from here */ 91 }; 92 93 /* 94 * PCI device attach arguments. 95 */ 96 struct pci_attach_args { 97 bus_space_tag_t pa_iot; /* pci i/o space tag */ 98 bus_space_tag_t pa_memt; /* pci mem space tag */ 99 bus_dma_tag_t pa_dmat; /* DMA tag */ 100 pci_chipset_tag_t pa_pc; 101 int pa_flags; /* flags; see below */ 102 103 u_int pa_device; 104 u_int pa_function; 105 pcitag_t pa_tag; 106 pcireg_t pa_id, pa_class; 107 108 /* 109 * Interrupt information. 110 * 111 * "Intrline" is used on systems whose firmware puts 112 * the right routing data into the line register in 113 * configuration space. The rest are used on systems 114 * that do not. 115 */ 116 u_int pa_intrswiz; /* how to swizzle pins if ppb */ 117 pcitag_t pa_intrtag; /* intr. appears to come from here */ 118 pci_intr_pin_t pa_intrpin; /* intr. appears on this pin */ 119 pci_intr_line_t pa_intrline; /* intr. routing information */ 120 }; 121 122 /* 123 * Flags given in the bus and device attachment args. 124 */ 125 #define PCI_FLAGS_IO_ENABLED 0x01 /* I/O space is enabled */ 126 #define PCI_FLAGS_MEM_ENABLED 0x02 /* memory space is enabled */ 127 128 #include "locators.h" 129 130 /* 131 * Locators devices that attach to 'pcibus', as specified to config. 132 */ 133 #define pcibuscf_bus cf_loc[PCIBUSCF_BUS] 134 #define PCIBUS_UNK_BUS PCIBUSCF_BUS_DEFAULT /* wildcarded 'bus' */ 135 136 /* 137 * Locators for PCI devices, as specified to config. 138 */ 139 #define pcicf_dev cf_loc[PCICF_DEV] 140 #define PCI_UNK_DEV PCICF_DEV_DEFAULT /* wildcarded 'dev' */ 141 142 #define pcicf_function cf_loc[PCICF_FUNCTION] 143 #define PCI_UNK_FUNCTION PCICF_FUNCTION_DEFAULT /* wildcarded 'function' */ 144 145 /* 146 * Configuration space access and utility functions. (Note that most, 147 * e.g. make_tag, conf_read, conf_write are declared by pci_machdep.h.) 148 */ 149 int pci_mapreg_info __P((pci_chipset_tag_t, pcitag_t, int, pcireg_t, 150 bus_addr_t *, bus_size_t *, int *)); 151 int pci_mapreg_map __P((struct pci_attach_args *, int, pcireg_t, int, 152 bus_space_tag_t *, bus_space_handle_t *, bus_addr_t *, 153 bus_size_t *)); 154 155 /* 156 * Helper functions for autoconfiguration. 157 */ 158 void pci_devinfo __P((pcireg_t, pcireg_t, int, char *)); 159 void set_pci_isa_bridge_callback __P((void (*)(void *), void *)); 160 161 #endif /* _DEV_PCI_PCIVAR_H_ */ 162
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