pci_machdep.h revision 1.6
1/* $NetBSD: pci_machdep.h,v 1.6 2006/04/09 19:28:01 bouyer Exp $ */ 2 3/* 4 * Copyright (c) 2006 Manuel Bouyer. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33/* 34 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 35 * Copyright (c) 1994 Charles M. Hannum. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by Charles M. Hannum. 48 * 4. The name of the author may not be used to endorse or promote products 49 * derived from this software without specific prior written permission. 50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 53 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 54 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 55 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 59 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 */ 61 62#ifndef _XEN_PCI_MACHDEP_H_ 63#define _XEN_PCI_MACHDEP_H_ 64 65#include "opt_xen.h" 66 67extern struct x86_bus_dma_tag pci_bus_dma_tag; 68#ifdef _LP64 69extern struct x86_bus_dma_tag pci_bus_dma64_tag; 70#endif 71 72/* Some values appropriate for x86, from x86/include/pci_machdep.h */ 73#define __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH 74#define PCI_PREFER_IOSPACE 75 76#ifdef XEN3 77union x86_pci_tag_u { 78 u_int32_t mode1; 79 struct { 80 u_int16_t port; 81 u_int8_t enable; 82 u_int8_t forward; 83 } mode2; 84}; 85 86typedef union x86_pci_tag_u pcitag_t; 87 88#else /* XEN3 */ 89 90extern u_int32_t pci_bus_attached[]; 91 92#define PCI_MACHDEP_ENUMERATE_BUS xen_pci_enumerate_bus 93 94/* types provided to MI PCI */ 95struct xen_pci_tag { 96 u_int8_t bus; 97 u_int8_t device; 98 u_int8_t function; 99 u_int8_t _pad; /* pad to 32bits */ 100}; 101 102typedef struct xen_pci_tag pcitag_t; 103#endif /* !XEN3 */ 104 105typedef void *pci_chipset_tag_t; 106 107struct xen_intr_handle { 108 int pirq; 109 int evtch; 110}; 111 112typedef struct xen_intr_handle pci_intr_handle_t; 113 114/* functions provided to MI PCI */ 115struct pci_attach_args; 116 117void pci_attach_hook(struct device *, struct device *, 118 struct pcibus_attach_args *); 119int pci_bus_maxdevs(pci_chipset_tag_t, int); 120pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 121void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, 122 int *, int *, int *); 123pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 124void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, 125 pcireg_t); 126int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 127const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t); 128const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 129void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 130 int, int (*)(void *), void *); 131void pci_intr_disestablish(pci_chipset_tag_t, void *); 132int xen_pci_enumerate_bus(struct pci_softc *, const int *, 133 int (*)(struct pci_attach_args *), struct pci_attach_args *); 134 135/* 136 * Section 6.2.4, `Miscellaneous Functions' of the PCI Specification, 137 * says that 255 means `unknown' or `no connection' to the interrupt 138 * controller on a PC. 139 */ 140#define X86_PCI_INTERRUPT_LINE_NO_CONNECTION 0xff 141 142extern int pci_mode; 143int pci_mode_detect(void); 144int pci_bus_flags(void); 145 146void pci_device_foreach(pci_chipset_tag_t, int, 147 void (*)(pci_chipset_tag_t, pcitag_t, void*), 148 void *); 149 150void pci_device_foreach_min(pci_chipset_tag_t, int, int, 151 void (*)(pci_chipset_tag_t, pcitag_t, void*), 152 void *); 153 154void pci_bridge_foreach(pci_chipset_tag_t, int, int, 155 void (*) (pci_chipset_tag_t, pcitag_t, void *), void *); 156 157#endif /* _XEN_PCI_MACHDEP_H_ */ 158