pcivar.h revision 1.43
1 /* $NetBSD: pcivar.h,v 1.43 2000/06/28 16:08:50 mrg 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 <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 #include <machine/pci_machdep.h> 57 58 /* 59 * PCI bus attach arguments. 60 */ 61 struct pcibus_attach_args { 62 char *pba_busname; /* XXX should be common */ 63 bus_space_tag_t pba_iot; /* pci i/o space tag */ 64 bus_space_tag_t pba_memt; /* pci mem space tag */ 65 bus_dma_tag_t pba_dmat; /* DMA tag */ 66 pci_chipset_tag_t pba_pc; 67 int pba_flags; /* flags; see below */ 68 69 int pba_bus; /* PCI bus number */ 70 71 #ifdef __PCI_OFW_BINDING 72 int pba_node; /* OFW node */ 73 #endif 74 75 /* 76 * Interrupt swizzling information. These fields 77 * are only used by secondary busses. 78 */ 79 u_int pba_intrswiz; /* how to swizzle pins */ 80 pcitag_t pba_intrtag; /* intr. appears to come from here */ 81 }; 82 83 /* 84 * PCI device attach arguments. 85 */ 86 struct pci_attach_args { 87 bus_space_tag_t pa_iot; /* pci i/o space tag */ 88 bus_space_tag_t pa_memt; /* pci mem space tag */ 89 bus_dma_tag_t pa_dmat; /* DMA tag */ 90 pci_chipset_tag_t pa_pc; 91 int pa_flags; /* flags; see below */ 92 93 u_int pa_device; 94 u_int pa_function; 95 pcitag_t pa_tag; 96 pcireg_t pa_id, pa_class; 97 98 #ifdef __PCI_OFW_BINDING 99 int pa_node; /* OFW node */ 100 #endif 101 102 /* 103 * Interrupt information. 104 * 105 * "Intrline" is used on systems whose firmware puts 106 * the right routing data into the line register in 107 * configuration space. The rest are used on systems 108 * that do not. 109 */ 110 u_int pa_intrswiz; /* how to swizzle pins if ppb */ 111 pcitag_t pa_intrtag; /* intr. appears to come from here */ 112 pci_intr_pin_t pa_intrpin; /* intr. appears on this pin */ 113 pci_intr_line_t pa_intrline; /* intr. routing information */ 114 }; 115 116 /* 117 * Flags given in the bus and device attachment args. 118 */ 119 #define PCI_FLAGS_IO_ENABLED 0x01 /* I/O space is enabled */ 120 #define PCI_FLAGS_MEM_ENABLED 0x02 /* memory space is enabled */ 121 #define PCI_FLAGS_MRL_OKAY 0x04 /* Memory Read Line okay */ 122 #define PCI_FLAGS_MRM_OKAY 0x08 /* Memory Read Multiple okay */ 123 #define PCI_FLAGS_MWI_OKAY 0x10 /* Memory Write and Invalidate 124 okay */ 125 126 /* 127 * PCI device 'quirks'. 128 * 129 * In general strange behaviour which can be handled by a driver (e.g. 130 * a bridge's inability to pass a type of access correctly) should be. 131 * The quirks table should only contain information which impacts 132 * the operation of the MI PCI code and which can't be pushed lower 133 * (e.g. because it's unacceptable to require a driver to be present 134 * for the information to be known). 135 */ 136 struct pci_quirkdata { 137 pci_vendor_id_t vendor; /* Vendor ID */ 138 pci_product_id_t product; /* Product ID */ 139 int quirks; /* quirks; see below */ 140 }; 141 #define PCI_QUIRK_MULTIFUNCTION 1 142 143 #include "locators.h" 144 145 /* 146 * Locators devices that attach to 'pcibus', as specified to config. 147 */ 148 #define pcibuscf_bus cf_loc[PCIBUSCF_BUS] 149 #define PCIBUS_UNK_BUS PCIBUSCF_BUS_DEFAULT /* wildcarded 'bus' */ 150 151 /* 152 * Locators for PCI devices, as specified to config. 153 */ 154 #define pcicf_dev cf_loc[PCICF_DEV] 155 #define PCI_UNK_DEV PCICF_DEV_DEFAULT /* wildcarded 'dev' */ 156 157 #define pcicf_function cf_loc[PCICF_FUNCTION] 158 #define PCI_UNK_FUNCTION PCICF_FUNCTION_DEFAULT /* wildcarded 'function' */ 159 160 /* 161 * Configuration space access and utility functions. (Note that most, 162 * e.g. make_tag, conf_read, conf_write are declared by pci_machdep.h.) 163 */ 164 pcireg_t pci_mapreg_type __P((pci_chipset_tag_t, pcitag_t, int)); 165 int pci_mapreg_info __P((pci_chipset_tag_t, pcitag_t, int, pcireg_t, 166 bus_addr_t *, bus_size_t *, int *)); 167 int pci_mapreg_map __P((struct pci_attach_args *, int, pcireg_t, int, 168 bus_space_tag_t *, bus_space_handle_t *, bus_addr_t *, 169 bus_size_t *)); 170 171 int pci_get_capability __P((pci_chipset_tag_t, pcitag_t, int, 172 int *, pcireg_t *)); 173 174 /* 175 * Helper functions for autoconfiguration. 176 */ 177 void pci_devinfo __P((pcireg_t, pcireg_t, int, char *)); 178 void pci_conf_print __P((pci_chipset_tag_t, pcitag_t, 179 void (*)(pci_chipset_tag_t, pcitag_t, const pcireg_t *))); 180 const struct pci_quirkdata * 181 pci_lookup_quirkdata __P((pci_vendor_id_t, pci_product_id_t)); 182 183 /* 184 * Misc. 185 */ 186 char *pci_findvendor __P((pcireg_t)); 187 188 #endif /* _DEV_PCI_PCIVAR_H_ */ 189
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