pcivar.h revision 1.48
1 /* $NetBSD: pcivar.h,v 1.48 2001/09/13 21:49:40 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved. 5 * Copyright (c) 1994 Charles M. 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 M. 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 <sys/device.h> 45 #include <machine/bus.h> 46 #include <dev/pci/pcireg.h> 47 48 /* 49 * Structures and definitions needed by the machine-dependent header. 50 */ 51 typedef u_int32_t pcireg_t; /* configuration space register XXX */ 52 struct pcibus_attach_args; 53 54 #ifdef _KERNEL 55 /* 56 * Machine-dependent definitions. 57 */ 58 #include <machine/pci_machdep.h> 59 60 /* 61 * PCI bus attach arguments. 62 */ 63 struct pcibus_attach_args { 64 char *pba_busname; /* XXX should be common */ 65 bus_space_tag_t pba_iot; /* pci i/o space tag */ 66 bus_space_tag_t pba_memt; /* pci mem space tag */ 67 bus_dma_tag_t pba_dmat; /* DMA tag */ 68 pci_chipset_tag_t pba_pc; 69 int pba_flags; /* flags; see below */ 70 71 int pba_bus; /* PCI bus number */ 72 73 /* 74 * Interrupt swizzling information. These fields 75 * are only used by secondary busses. 76 */ 77 u_int pba_intrswiz; /* how to swizzle pins */ 78 pcitag_t pba_intrtag; /* intr. appears to come from here */ 79 }; 80 81 /* 82 * PCI device attach arguments. 83 */ 84 struct pci_attach_args { 85 bus_space_tag_t pa_iot; /* pci i/o space tag */ 86 bus_space_tag_t pa_memt; /* pci mem space tag */ 87 bus_dma_tag_t pa_dmat; /* DMA tag */ 88 pci_chipset_tag_t pa_pc; 89 int pa_flags; /* flags; see below */ 90 91 u_int pa_bus; 92 u_int pa_device; 93 u_int pa_function; 94 pcitag_t pa_tag; 95 pcireg_t pa_id, pa_class; 96 97 /* 98 * Interrupt information. 99 * 100 * "Intrline" is used on systems whose firmware puts 101 * the right routing data into the line register in 102 * configuration space. The rest are used on systems 103 * that do not. 104 */ 105 u_int pa_intrswiz; /* how to swizzle pins if ppb */ 106 pcitag_t pa_intrtag; /* intr. appears to come from here */ 107 pci_intr_pin_t pa_intrpin; /* intr. appears on this pin */ 108 pci_intr_line_t pa_intrline; /* intr. routing information */ 109 }; 110 111 /* 112 * Flags given in the bus and device attachment args. 113 */ 114 #define PCI_FLAGS_IO_ENABLED 0x01 /* I/O space is enabled */ 115 #define PCI_FLAGS_MEM_ENABLED 0x02 /* memory space is enabled */ 116 #define PCI_FLAGS_MRL_OKAY 0x04 /* Memory Read Line okay */ 117 #define PCI_FLAGS_MRM_OKAY 0x08 /* Memory Read Multiple okay */ 118 #define PCI_FLAGS_MWI_OKAY 0x10 /* Memory Write and Invalidate 119 okay */ 120 121 /* 122 * PCI device 'quirks'. 123 * 124 * In general strange behaviour which can be handled by a driver (e.g. 125 * a bridge's inability to pass a type of access correctly) should be. 126 * The quirks table should only contain information which impacts 127 * the operation of the MI PCI code and which can't be pushed lower 128 * (e.g. because it's unacceptable to require a driver to be present 129 * for the information to be known). 130 */ 131 struct pci_quirkdata { 132 pci_vendor_id_t vendor; /* Vendor ID */ 133 pci_product_id_t product; /* Product ID */ 134 int quirks; /* quirks; see below */ 135 }; 136 #define PCI_QUIRK_MULTIFUNCTION 1 137 138 #include "locators.h" 139 140 struct pci_softc { 141 struct device sc_dev; 142 bus_space_tag_t sc_iot, sc_memt; 143 bus_dma_tag_t sc_dmat; 144 pci_chipset_tag_t sc_pc; 145 int sc_bus, sc_maxndevs; 146 u_int sc_intrswiz; 147 pcitag_t sc_intrtag; 148 int sc_flags; 149 }; 150 151 extern struct cfdriver pci_cd; 152 153 /* 154 * Locators devices that attach to 'pcibus', as specified to config. 155 */ 156 #define pcibuscf_bus cf_loc[PCIBUSCF_BUS] 157 #define PCIBUS_UNK_BUS PCIBUSCF_BUS_DEFAULT /* wildcarded 'bus' */ 158 159 /* 160 * Locators for PCI devices, as specified to config. 161 */ 162 #define pcicf_dev cf_loc[PCICF_DEV] 163 #define PCI_UNK_DEV PCICF_DEV_DEFAULT /* wildcarded 'dev' */ 164 165 #define pcicf_function cf_loc[PCICF_FUNCTION] 166 #define PCI_UNK_FUNCTION PCICF_FUNCTION_DEFAULT /* wildcarded 'function' */ 167 168 /* 169 * Configuration space access and utility functions. (Note that most, 170 * e.g. make_tag, conf_read, conf_write are declared by pci_machdep.h.) 171 */ 172 pcireg_t pci_mapreg_type __P((pci_chipset_tag_t, pcitag_t, int)); 173 int pci_mapreg_info __P((pci_chipset_tag_t, pcitag_t, int, pcireg_t, 174 bus_addr_t *, bus_size_t *, int *)); 175 int pci_mapreg_map __P((struct pci_attach_args *, int, pcireg_t, int, 176 bus_space_tag_t *, bus_space_handle_t *, bus_addr_t *, 177 bus_size_t *)); 178 179 int pci_get_capability __P((pci_chipset_tag_t, pcitag_t, int, 180 int *, pcireg_t *)); 181 182 /* 183 * Helper functions for autoconfiguration. 184 */ 185 void pci_devinfo __P((pcireg_t, pcireg_t, int, char *)); 186 void pci_conf_print __P((pci_chipset_tag_t, pcitag_t, 187 void (*)(pci_chipset_tag_t, pcitag_t, const pcireg_t *))); 188 const struct pci_quirkdata * 189 pci_lookup_quirkdata __P((pci_vendor_id_t, pci_product_id_t)); 190 191 /* 192 * Helper functions for user access to the PCI bus. 193 */ 194 struct proc; 195 int pci_devioctl __P((pci_chipset_tag_t, pcitag_t, u_long, caddr_t, 196 int flag, struct proc *)); 197 198 /* 199 * Misc. 200 */ 201 char *pci_findvendor __P((pcireg_t)); 202 int pci_find_device(struct pci_attach_args *pa, 203 int (*match)(struct pci_attach_args *)); 204 205 #endif /* _KERNEL */ 206 207 #endif /* _DEV_PCI_PCIVAR_H_ */ 208
Indexes created Mon Sep 29 21:09:56 GMT 2025