1 /*- 2 * Copyright (c) 1999 Doug Rabson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/kernel.h> 32 #include <sys/bus.h> 33 #include <sys/module.h> 34 #include <isa/isavar.h> 35 #include <machine/resource.h> 36 37 static void 38 isahint_add_device(device_t parent, const char *name, int unit) 39 { 40 device_t child; 41 int sensitive, start, count, t; 42 int order; 43 44 /* device-specific flag overrides any wildcard */ 45 sensitive = 0; 46 if (resource_int_value(name, unit, "sensitive", &sensitive) != 0) 47 resource_int_value(name, -1, "sensitive", &sensitive); 48 49 if (sensitive) 50 order = ISA_ORDER_SENSITIVE; 51 else 52 order = ISA_ORDER_SPECULATIVE; 53 54 child = BUS_ADD_CHILD(parent, order, name, unit); 55 if (child == 0) 56 return; 57 58 start = 0; 59 count = 0; 60 if ((resource_int_value(name, unit, "port", &start) == 0 && start > 0) 61 || (resource_int_value(name, unit, "portsize", &count) == 0 && count > 0)) 62 bus_set_resource(child, SYS_RES_IOPORT, 0, start, count); 63 64 start = 0; 65 count = 0; 66 if ((resource_int_value(name, unit, "maddr", &start) == 0 && start > 0) 67 || (resource_int_value(name, unit, "msize", &count) == 0 && count > 0)) 68 bus_set_resource(child, SYS_RES_MEMORY, 0, start, count); 69 70 if (resource_int_value(name, unit, "irq", &start) == 0 && start > 0) 71 bus_set_resource(child, SYS_RES_IRQ, 0, start, 1); 72 73 if (resource_int_value(name, unit, "drq", &start) == 0 && start >= 0) 74 bus_set_resource(child, SYS_RES_DRQ, 0, start, 1); 75 76 if (resource_int_value(name, unit, "flags", &t) == 0) 77 device_set_flags(child, t); 78 79 if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0) 80 device_disable(child); 81 } 82 83 static void 84 isahint_identify(driver_t *driver, device_t parent) 85 { 86 int i; 87 static char buf[] = "isaXXX"; 88 89 /* 90 * Add all devices configured to be attached to parent. 91 */ 92 sprintf(buf, "isa%d", device_get_unit(parent)); 93 for (i = resource_query_string(-1, "at", buf); 94 i != -1; 95 i = resource_query_string(i, "at", buf)) { 96 if (strcmp(resource_query_name(i), "atkbd") == 0) 97 continue; /* old GENERIC kludge */ 98 isahint_add_device(parent, 99 resource_query_name(i), 100 resource_query_unit(i)); 101 } 102 103 /* 104 * and isa? 105 */ 106 for (i = resource_query_string(-1, "at", "isa"); 107 i != -1; 108 i = resource_query_string(i, "at", "isa")) { 109 if (strcmp(resource_query_name(i), "atkbd") == 0) 110 continue; /* old GENERIC kludge */ 111 isahint_add_device(parent, 112 resource_query_name(i), 113 resource_query_unit(i)); 114 } 115 } 116 117 static device_method_t isahint_methods[] = { 118 /* Device interface */ 119 DEVMETHOD(device_identify, isahint_identify), 120 121 { 0, 0 } 122 }; 123 124 static driver_t isahint_driver = { 125 "hint", 126 isahint_methods, 127 1, /* no softc */ 128 }; 129 130 static devclass_t hint_devclass; 131 132 DRIVER_MODULE(isahint, isa, isahint_driver, hint_devclass, 0, 0); 133