1 /* $NetBSD: pci_machdep.h,v 1.15 2020/07/07 03:38:48 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 #define __HAVE_PCI_CONF_HOOK 38 39 /* 40 * Forward declarations. 41 */ 42 struct pci_attach_args; 43 44 /* 45 * Types provided to machine-independent PCI code 46 */ 47 48 typedef struct sgimips_pci_chipset *pci_chipset_tag_t; 49 typedef u_int32_t pcitag_t; 50 typedef int pci_intr_handle_t; 51 52 /* 53 * SGI-specific PCI structure and type definitions. 54 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 55 */ 56 struct sgimips_pci_chipset { 57 int (*pc_bus_maxdevs)(pci_chipset_tag_t, int); 58 pcireg_t (*pc_conf_read)(pci_chipset_tag_t, pcitag_t, int); 59 void (*pc_conf_write)(pci_chipset_tag_t, pcitag_t, int, 60 pcireg_t); 61 int (*pc_conf_hook)(pci_chipset_tag_t, int, int, int, 62 pcireg_t); 63 int (*pc_intr_map)(const struct pci_attach_args *, 64 pci_intr_handle_t *); 65 const char * (*pc_intr_string)(pci_chipset_tag_t pc, 66 pci_intr_handle_t, char *, size_t); 67 void *(*intr_establish)(int , int, int (*)(void *), void *); 68 void (*intr_disestablish)(void *ih); 69 70 bus_space_tag_t iot; 71 bus_space_handle_t ioh; 72 73 void *cookie; 74 }; 75 76 extern struct mips_bus_dma_tag pci_bus_dma_tag; 77 78 /* 79 * Functions provided to machine-independent PCI code. 80 */ 81 void pci_attach_hook(device_t, device_t, 82 struct pcibus_attach_args *); 83 int pci_bus_maxdevs(pci_chipset_tag_t, int); 84 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 85 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, 86 int *, int *, int *); 87 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 88 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, 89 pcireg_t); 90 int pci_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t); 91 int pci_intr_map(const struct pci_attach_args *, 92 pci_intr_handle_t *); 93 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t, char *, 94 size_t); 95 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 96 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 97 int, int (*)(void *), void *); 98 void pci_intr_disestablish(pci_chipset_tag_t, void *); 99 100 void pci_conf_interrupt(pci_chipset_tag_t, int, int, int, int, 101 int *); 102