1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org> 5 * 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 * without modification, immediately at the beginning of the file. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31#ifndef _DEV_OFW_OFW_BUS_SUBR_H_ 32#define _DEV_OFW_OFW_BUS_SUBR_H_ 33 34#include <sys/bus.h> 35#ifdef INTRNG 36#include <sys/intr.h> 37#endif 38#include <dev/ofw/openfirm.h> 39 40#include "ofw_bus_if.h" 41 42#define ORIP_NOINT -1 43#define ORIR_NOTFOUND 0xffffffff 44 45struct ofw_bus_iinfo { 46 uint8_t *opi_imap; 47 uint8_t *opi_imapmsk; 48 int opi_imapsz; 49 pcell_t opi_addrc; 50}; 51 52struct ofw_compat_data { 53 const char *ocd_str; 54 uintptr_t ocd_data; 55}; 56 57#ifdef INTRNG 58struct intr_map_data_fdt { 59 struct intr_map_data hdr; 60 phandle_t iparent; 61 u_int ncells; 62 pcell_t cells[]; 63}; 64#endif 65 66#define FDTCOMPAT_PNP_DESCR "Z:compat;P:#;" 67#define FDTCOMPAT_PNP_INFO(t, busname) \ 68 MODULE_PNP_INFO(FDTCOMPAT_PNP_DESCR, busname, t, t, sizeof(t) / sizeof(t[0])); 69 70#define OFWBUS_PNP_INFO(t) FDTCOMPAT_PNP_INFO(t, ofwbus) 71#define SIMPLEBUS_PNP_INFO(t) FDTCOMPAT_PNP_INFO(t, simplebus) 72 73/* Generic implementation of ofw_bus_if.m methods and helper routines */ 74int ofw_bus_gen_setup_devinfo(struct ofw_bus_devinfo *, phandle_t); 75void ofw_bus_gen_destroy_devinfo(struct ofw_bus_devinfo *); 76 77ofw_bus_get_compat_t ofw_bus_gen_get_compat; 78ofw_bus_get_model_t ofw_bus_gen_get_model; 79ofw_bus_get_name_t ofw_bus_gen_get_name; 80ofw_bus_get_node_t ofw_bus_gen_get_node; 81ofw_bus_get_type_t ofw_bus_gen_get_type; 82 83/* Helper method to report interesting OF properties in pnpinfo */ 84bus_child_pnpinfo_t ofw_bus_gen_child_pnpinfo; 85bus_get_device_path_t ofw_bus_gen_get_device_path; 86 87/* Routines for processing firmware interrupt maps */ 88void ofw_bus_setup_iinfo(phandle_t, struct ofw_bus_iinfo *, int); 89int ofw_bus_lookup_imap(phandle_t, struct ofw_bus_iinfo *, void *, int, 90 void *, int, void *, int, phandle_t *); 91int ofw_bus_search_intrmap(void *, int, void *, int, void *, int, void *, 92 void *, void *, int, phandle_t *); 93 94/* Routines for processing msi and iommu maps. */ 95int ofw_bus_msimap(phandle_t, uint16_t, phandle_t *, uint32_t *); 96int ofw_bus_iommu_map(phandle_t, uint16_t, phandle_t *, uint32_t *); 97 98/* Routines for parsing device-tree data into resource lists. */ 99int ofw_bus_reg_to_rl(device_t, phandle_t, pcell_t, pcell_t, 100 struct resource_list *); 101int ofw_bus_assigned_addresses_to_rl(device_t, phandle_t, pcell_t, pcell_t, 102 struct resource_list *); 103int ofw_bus_intr_to_rl(device_t, phandle_t, struct resource_list *, int *); 104int ofw_bus_intr_by_rid(device_t, phandle_t, int, phandle_t *, int *, 105 pcell_t **); 106 107/* Helper to get device status property */ 108const char *ofw_bus_get_status(device_t dev); 109int ofw_bus_status_okay(device_t dev); 110int ofw_bus_node_status_okay(phandle_t node); 111 112/* Helper to get node's interrupt parent */ 113phandle_t ofw_bus_find_iparent(phandle_t); 114 115/* Helper routine for checking compat prop */ 116int ofw_bus_is_compatible(device_t, const char *); 117int ofw_bus_is_compatible_strict(device_t, const char *); 118int ofw_bus_node_is_compatible(phandle_t, const char *); 119 120/* 121 * Helper routine to search a list of compat properties. The table is 122 * terminated by an entry with a NULL compat-string pointer; a pointer to that 123 * table entry is returned if none of the compat strings match for the device, 124 * giving you control over the not-found value. Will not return NULL unless the 125 * provided table pointer is NULL. 126 */ 127const struct ofw_compat_data * 128 ofw_bus_search_compatible(device_t, const struct ofw_compat_data *); 129 130/* Helper routine for checking existence of a prop */ 131int ofw_bus_has_prop(device_t, const char *); 132 133/* Helper to search for a child with a given compat prop */ 134phandle_t ofw_bus_find_compatible(phandle_t, const char *); 135 136/* Helper to search for a child with a given name */ 137phandle_t ofw_bus_find_child(phandle_t, const char *); 138 139/* Helper routine to find a device_t child matching a given phandle_t */ 140device_t ofw_bus_find_child_device_by_phandle(device_t bus, phandle_t node); 141 142/* Helper routines for parsing lists */ 143int ofw_bus_parse_xref_list_alloc(phandle_t node, const char *list_name, 144 const char *cells_name, int idx, phandle_t *producer, int *ncells, 145 pcell_t **cells); 146int ofw_bus_parse_xref_list_get_length(phandle_t node, const char *list_name, 147 const char *cells_name, int *count); 148int ofw_bus_find_string_index(phandle_t node, const char *list_name, 149 const char *name, int *idx); 150int ofw_bus_string_list_to_array(phandle_t node, const char *list_name, 151 const char ***array); 152 153#endif /* !_DEV_OFW_OFW_BUS_SUBR_H_ */ 154