pci_machdep.h revision 1.7.4.2
1 /* $NetBSD: pci_machdep.h,v 1.7.4.2 2010/03/11 15:03:08 yamt Exp $ */ 2 3 /* 4 * Copyright (c) 1996 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 _X86_PCI_MACHDEP_H_ 34 #define _X86_PCI_MACHDEP_H_ 35 36 /* 37 * Machine-specific definitions for PCI autoconfiguration. 38 */ 39 #define __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH 40 41 /* 42 * i386-specific PCI structure and type definitions. 43 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 44 * 45 * Configuration tag; created from a {bus,device,function} triplet by 46 * pci_make_tag(), and passed to pci_conf_read() and pci_conf_write(). 47 * We could instead always pass the {bus,device,function} triplet to 48 * the read and write routines, but this would cause extra overhead. 49 * 50 * Mode 2 is historical and deprecated by the Revision 2.0 specification. 51 */ 52 union x86_pci_tag_u { 53 uint32_t mode1; 54 struct { 55 uint16_t port; 56 uint8_t enable; 57 uint8_t forward; 58 } mode2; 59 }; 60 61 extern struct x86_bus_dma_tag pci_bus_dma_tag; 62 #ifdef _LP64 63 extern struct x86_bus_dma_tag pci_bus_dma64_tag; 64 #endif 65 66 struct pci_chipset_tag; 67 struct pci_attach_args; 68 69 /* 70 * Types provided to machine-independent PCI code 71 */ 72 typedef struct pci_chipset_tag *pci_chipset_tag_t; 73 typedef union x86_pci_tag_u pcitag_t; 74 typedef int pci_intr_handle_t; 75 76 struct pci_chipset_tag { 77 pcireg_t (*pc_conf_read)(pci_chipset_tag_t, pcitag_t, int); 78 79 void (*pc_conf_write)(pci_chipset_tag_t, pcitag_t, int, pcireg_t); 80 81 #if 0 82 int (*pc_find_rom)(struct pci_attach_args *, bus_space_tag_t, 83 bus_space_handle_t, int, bus_space_handle_t *, bus_space_size_t *); 84 #endif 85 86 int (*pc_intr_map)(struct pci_attach_args *, pci_intr_handle_t *); 87 88 const char *(*pc_intr_string)(pci_chipset_tag_t, pci_intr_handle_t); 89 90 const struct evcnt *(*pc_intr_evcnt)(pci_chipset_tag_t, 91 pci_intr_handle_t); 92 93 void *(*pc_intr_establish)(pci_chipset_tag_t, pci_intr_handle_t, int, 94 int (*)(void *), void *); 95 96 void (*pc_intr_disestablish)(pci_chipset_tag_t, void *); 97 98 pcitag_t (*pc_make_tag)(pci_chipset_tag_t, int, int, int); 99 100 void (*pc_decompose_tag)(pci_chipset_tag_t, pcitag_t, 101 int *, int *, int *); 102 }; 103 104 /* 105 * i386-specific PCI variables and functions. 106 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 107 */ 108 void pci_mode_set(int); 109 int pci_mode_detect(void); 110 int pci_bus_flags(void); 111 112 /* 113 * Functions provided to machine-independent PCI code. 114 */ 115 void pci_attach_hook(struct device *, struct device *, 116 struct pcibus_attach_args *); 117 int pci_bus_maxdevs(pci_chipset_tag_t, int); 118 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 119 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, 120 int *, int *, int *); 121 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 122 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, 123 pcireg_t); 124 int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 125 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t); 126 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 127 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 128 int, int (*)(void *), void *); 129 void pci_intr_disestablish(pci_chipset_tag_t, void *); 130 131 132 /* 133 * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED 134 * BY PORTABLE CODE. 135 */ 136 137 /* Extract Bus Number for a host bridge or -1 if unknown. */ 138 int pchb_get_bus_number(pci_chipset_tag_t, pcitag_t); 139 140 /* 141 * Section 6.2.4, `Miscellaneous Functions' of the PCI Specification, 142 * says that 255 means `unknown' or `no connection' to the interrupt 143 * controller on a PC. 144 */ 145 #define X86_PCI_INTERRUPT_LINE_NO_CONNECTION 0xff 146 147 void pci_device_foreach(pci_chipset_tag_t, int, 148 void (*)(pci_chipset_tag_t, pcitag_t, void*), 149 void *); 150 151 void pci_device_foreach_min(pci_chipset_tag_t, int, int, 152 void (*)(pci_chipset_tag_t, pcitag_t, void*), 153 void *); 154 155 void pci_bridge_foreach(pci_chipset_tag_t, int, int, 156 void (*) (pci_chipset_tag_t, pcitag_t, void *), void *); 157 158 159 #endif /* _X86_PCI_MACHDEP_H_ */ 160
Indexes created Sat Oct 18 23:09:54 GMT 2025