1120492Sfjoe/*- 2120492Sfjoe * Copyright (c) 2000 Michael Smith 3120492Sfjoe * Copyright (c) 2000 BSDi 4120492Sfjoe * All rights reserved. 5120492Sfjoe * 6120492Sfjoe * Redistribution and use in source and binary forms, with or without 7120492Sfjoe * modification, are permitted provided that the following conditions 8120492Sfjoe * are met: 9120492Sfjoe * 1. Redistributions of source code must retain the above copyright 10120492Sfjoe * notice, this list of conditions and the following disclaimer. 11120492Sfjoe * 2. Redistributions in binary form must reproduce the above copyright 12120492Sfjoe * notice, this list of conditions and the following disclaimer in the 13120492Sfjoe * documentation and/or other materials provided with the distribution. 14120492Sfjoe * 15120492Sfjoe * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16120492Sfjoe * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17120492Sfjoe * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18120492Sfjoe * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19120492Sfjoe * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20120492Sfjoe * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21120492Sfjoe * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22120492Sfjoe * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23120492Sfjoe * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24120492Sfjoe * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25120492Sfjoe * SUCH DAMAGE. 26120492Sfjoe * 27120492Sfjoe * $FreeBSD: releng/10.3/lib/libdevinfo/devinfo.h 218505 2011-02-10 04:53:09Z imp $ 28120492Sfjoe */ 29120492Sfjoe 30120492Sfjoe#ifndef _DEVINFO_H_INCLUDED 31120492Sfjoe#define _DEVINFO_H_INCLUDED 32120492Sfjoe 33120492Sfjoe#include <sys/cdefs.h> 34120492Sfjoe#include <sys/types.h> 35120492Sfjoe#include <sys/bus.h> 36120492Sfjoe 37120492Sfjoetypedef __uintptr_t devinfo_handle_t; 38120492Sfjoe#define DEVINFO_ROOT_DEVICE ((devinfo_handle_t)0) 39120492Sfjoe 40120492Sfjoetypedef enum device_state devinfo_state_t; 41120492Sfjoe 42120492Sfjoestruct devinfo_dev { 43120492Sfjoe devinfo_handle_t dd_handle; /* device handle */ 44120492Sfjoe devinfo_handle_t dd_parent; /* parent handle */ 45120492Sfjoe 46120492Sfjoe char *dd_name; /* name of device */ 47120492Sfjoe char *dd_desc; /* device description */ 48120492Sfjoe char *dd_drivername; /* name of attached driver*/ 49120492Sfjoe char *dd_pnpinfo; /* pnp info from parent bus */ 50120492Sfjoe char *dd_location; /* Where bus thinks dev at */ 51120492Sfjoe uint32_t dd_devflags; /* API flags */ 52120492Sfjoe uint16_t dd_flags; /* internal dev flags */ 53120492Sfjoe devinfo_state_t dd_state; /* attacement state of dev */ 54120492Sfjoe}; 55120492Sfjoe 56120492Sfjoestruct devinfo_rman { 57120492Sfjoe devinfo_handle_t dm_handle; /* resource manager handle */ 58120492Sfjoe 59120492Sfjoe unsigned long dm_start; /* resource start */ 60120492Sfjoe unsigned long dm_size; /* resource size */ 61120492Sfjoe 62120492Sfjoe char *dm_desc; /* resource description */ 63120492Sfjoe}; 64120492Sfjoe 65120492Sfjoestruct devinfo_res { 66120492Sfjoe devinfo_handle_t dr_handle; /* resource handle */ 67120492Sfjoe devinfo_handle_t dr_rman; /* resource manager handle */ 68120492Sfjoe devinfo_handle_t dr_device; /* owning device */ 69120492Sfjoe 70120492Sfjoe unsigned long dr_start; /* region start */ 71120492Sfjoe unsigned long dr_size; /* region size */ 72120492Sfjoe /* XXX add flags */ 73120492Sfjoe}; 74120492Sfjoe 75120492Sfjoe__BEGIN_DECLS 76120492Sfjoe 77120492Sfjoe/* 78120492Sfjoe * Acquire a coherent copy of the kernel's device and resource tables. 79120492Sfjoe * This must return success (zero) before any other interfaces will 80120492Sfjoe * function. Sets errno on failure. 81120492Sfjoe */ 82120492Sfjoeextern int devinfo_init(void); 83120492Sfjoe 84120492Sfjoe/* 85120492Sfjoe * Release the storage associated with the internal copy of the device 86120492Sfjoe * and resource tables. devinfo_init must be called before any attempt 87120492Sfjoe * is made to use any other interfaces. 88120492Sfjoe */ 89120492Sfjoeextern void devinfo_free(void); 90120492Sfjoe 91120492Sfjoe/* 92120492Sfjoe * Find a device/resource/resource manager by its handle. 93120492Sfjoe */ 94120492Sfjoeextern struct devinfo_dev 95120492Sfjoe *devinfo_handle_to_device(devinfo_handle_t handle); 96120492Sfjoeextern struct devinfo_res 97120492Sfjoe *devinfo_handle_to_resource(devinfo_handle_t handle); 98120492Sfjoeextern struct devinfo_rman 99120492Sfjoe *devinfo_handle_to_rman(devinfo_handle_t handle); 100120492Sfjoe 101120492Sfjoe/* 102120492Sfjoe * Iterate over the children of a device, calling (fn) on each. If 103120492Sfjoe * (fn) returns nonzero, abort the scan and return. 104120492Sfjoe */ 105120492Sfjoeextern int 106120492Sfjoe devinfo_foreach_device_child(struct devinfo_dev *parent, 107120492Sfjoe int (* fn)(struct devinfo_dev *child, void *arg), 108120492Sfjoe void *arg); 109120492Sfjoe 110120492Sfjoe/* 111120492Sfjoe * Iterate over all the resources owned by a device, calling (fn) on each. 112120492Sfjoe * If (fn) returns nonzero, abort the scan and return. 113120492Sfjoe */ 114120492Sfjoeextern int 115120492Sfjoe devinfo_foreach_device_resource(struct devinfo_dev *dev, 116120492Sfjoe int (* fn)(struct devinfo_dev *dev, 117120492Sfjoe struct devinfo_res *res, void *arg), 118120492Sfjoe void *arg); 119120492Sfjoe 120120492Sfjoe/* 121120492Sfjoe * Iterate over all the resources owned by a resource manager, calling (fn) 122120492Sfjoe * on each. If (fn) returns nonzero, abort the scan and return. 123120492Sfjoe */ 124120492Sfjoeextern int 125120492Sfjoe devinfo_foreach_rman_resource(struct devinfo_rman *rman, 126120492Sfjoe int (* fn)(struct devinfo_res *res, void *arg), 127120492Sfjoe void *arg); 128120492Sfjoe 129120492Sfjoe/* 130120492Sfjoe * Iterate over all the resource managers, calling (fn) on each. If (fn) 131120492Sfjoe * returns nonzero, abort the scan and return. 132120492Sfjoe */ 133120492Sfjoeextern int 134120492Sfjoe devinfo_foreach_rman(int (* fn)(struct devinfo_rman *rman, void *arg), 135120492Sfjoe void *arg); 136120492Sfjoe 137120492Sfjoe__END_DECLS 138120492Sfjoe 139120492Sfjoe#endif /* ! _DEVINFO_H_INCLUDED */ 140120492Sfjoe