1 /* $NetBSD: pci_machdep.h,v 1.3 2002/05/15 19:23:55 thorpej 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 /* 34 * Machine-specific definitions for PCI autoconfiguration. 35 */ 36 37 /* 38 * be-specific PCI structure and type definitions. 39 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 40 * 41 * Configuration tag; created from a {bus,device,function} triplet by 42 * pci_make_tag(), and passed to pci_conf_read() and pci_conf_write(). 43 * We could instead always pass the {bus,device,function} triplet to 44 * the read and write routines, but this would cause extra overhead. 45 */ 46 47 struct pci_attach_args; /* Forward declaration */ 48 49 /* 50 * Types provided to machine-independent PCI code 51 */ 52 typedef void *pci_chipset_tag_t; 53 typedef int pcitag_t; 54 typedef int pci_intr_handle_t; 55 extern struct powerpc_bus_dma_tag pci_bus_dma_tag; 56 57 /* 58 * Functions provided to machine-independent PCI code. 59 */ 60 void pci_attach_hook(struct device *, struct device *, 61 struct pcibus_attach_args *); 62 int pci_bus_maxdevs(pci_chipset_tag_t, int); 63 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 64 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, 65 int *, int *, int *); 66 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 67 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, 68 pcireg_t); 69 int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 70 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t); 71 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 72 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 73 int, int (*)(void *), void *); 74 void pci_intr_disestablish(pci_chipset_tag_t, void *); 75 76 #define pci_enumerate_bus(sc, m, p) \ 77 pci_enumerate_bus_generic((sc), (m), (p)) 78