bthub.c revision 1.15
1 /* $NetBSD: bthub.c,v 1.15 2009/05/12 12:10:46 cegger Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Itronix Inc. 5 * All rights reserved. 6 * 7 * Written by Iain Hibbert for Itronix Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of Itronix Inc. may not be used to endorse 18 * or promote products derived from this software without specific 19 * prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 28 * ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: bthub.c,v 1.15 2009/05/12 12:10:46 cegger Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/conf.h> 39 #include <sys/device.h> 40 #include <sys/fcntl.h> 41 #include <sys/kernel.h> 42 #include <sys/queue.h> 43 #include <sys/malloc.h> 44 #include <sys/mbuf.h> 45 #include <sys/proc.h> 46 #include <sys/systm.h> 47 48 #include <prop/proplib.h> 49 50 #include <netbt/bluetooth.h> 51 52 #include <dev/bluetooth/btdev.h> 53 54 #include "ioconf.h" 55 56 /***************************************************************************** 57 * 58 * Bluetooth Device Hub 59 */ 60 61 /* autoconf(9) glue */ 62 static int bthub_match(device_t, cfdata_t, void *); 63 static void bthub_attach(device_t, device_t, void *); 64 static int bthub_detach(device_t, int); 65 66 CFATTACH_DECL_NEW(bthub, 0, 67 bthub_match, bthub_attach, bthub_detach, NULL); 68 69 /* control file */ 70 dev_type_ioctl(bthubioctl); 71 72 const struct cdevsw bthub_cdevsw = { 73 nullopen, nullclose, noread, nowrite, bthubioctl, 74 nostop, notty, nopoll, nommap, nokqfilter, D_OTHER, 75 }; 76 77 /* bthub functions */ 78 static int bthub_print(void *, const char *); 79 static int bthub_pioctl(dev_t, unsigned long, prop_dictionary_t, int, struct lwp *); 80 81 /***************************************************************************** 82 * 83 * bthub autoconf(9) routines 84 * 85 * A Hub is attached to each Bluetooth Controller as it is enabled 86 */ 87 88 static int 89 bthub_match(device_t self, cfdata_t cfdata, void *arg) 90 { 91 92 return 1; 93 } 94 95 static void 96 bthub_attach(device_t parent, device_t self, void *aux) 97 { 98 bdaddr_t *addr = aux; 99 prop_dictionary_t dict; 100 prop_object_t obj; 101 102 dict = device_properties(self); 103 obj = prop_data_create_data(addr, sizeof(*addr)); 104 prop_dictionary_set(dict, BTDEVladdr, obj); 105 prop_object_release(obj); 106 107 aprint_verbose(" %s %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", 108 BTDEVladdr, 109 addr->b[5], addr->b[4], addr->b[3], 110 addr->b[2], addr->b[1], addr->b[0]); 111 112 aprint_normal("\n"); 113 } 114 115 static int 116 bthub_detach(device_t self, int flags) 117 { 118 119 return config_detach_children(self, flags); 120 } 121 122 /***************************************************************************** 123 * 124 * bthub access functions to control device 125 */ 126 127 int 128 bthubioctl(dev_t devno, unsigned long cmd, void *data, int flag, struct lwp *l) 129 { 130 prop_dictionary_t dict; 131 int err; 132 133 switch(cmd) { 134 case BTDEV_ATTACH: 135 case BTDEV_DETACH: 136 /* load dictionary */ 137 err = prop_dictionary_copyin_ioctl(data, cmd, &dict); 138 if (err == 0) { 139 err = bthub_pioctl(devno, cmd, dict, flag, l); 140 prop_object_release(dict); 141 } 142 break; 143 144 default: 145 err = EPASSTHROUGH; 146 break; 147 } 148 149 return err; 150 } 151 152 static int 153 bthub_pioctl(dev_t devno, unsigned long cmd, prop_dictionary_t dict, 154 int flag, struct lwp *l) 155 { 156 prop_data_t laddr, raddr; 157 prop_string_t service; 158 prop_dictionary_t prop; 159 prop_object_t obj; 160 device_t dev, self; 161 deviter_t di; 162 int unit; 163 164 /* validate local address */ 165 laddr = prop_dictionary_get(dict, BTDEVladdr); 166 if (prop_data_size(laddr) != sizeof(bdaddr_t)) 167 return EINVAL; 168 169 /* locate the relevant bthub */ 170 for (unit = 0 ; ; unit++) { 171 if (unit == bthub_cd.cd_ndevs) 172 return ENXIO; 173 174 self = device_lookup(&bthub_cd, unit); 175 if (self == NULL) 176 continue; 177 178 prop = device_properties(self); 179 obj = prop_dictionary_get(prop, BTDEVladdr); 180 if (prop_data_equals(laddr, obj)) 181 break; 182 } 183 184 /* validate remote address */ 185 raddr = prop_dictionary_get(dict, BTDEVraddr); 186 if (prop_data_size(raddr) != sizeof(bdaddr_t) 187 || bdaddr_any(prop_data_data_nocopy(raddr))) 188 return EINVAL; 189 190 /* validate service name */ 191 service = prop_dictionary_get(dict, BTDEVservice); 192 if (prop_object_type(service) != PROP_TYPE_STRING) 193 return EINVAL; 194 195 /* locate matching child device, if any */ 196 deviter_init(&di, 0); 197 while ((dev = deviter_next(&di)) != NULL) { 198 if (device_parent(dev) != self) 199 continue; 200 201 prop = device_properties(dev); 202 203 obj = prop_dictionary_get(prop, BTDEVraddr); 204 if (!prop_object_equals(raddr, obj)) 205 continue; 206 207 obj = prop_dictionary_get(prop, BTDEVservice); 208 if (!prop_object_equals(service, obj)) 209 continue; 210 211 break; 212 } 213 deviter_release(&di); 214 215 switch (cmd) { 216 case BTDEV_ATTACH: /* attach BTDEV */ 217 if (dev != NULL) 218 return EADDRINUSE; 219 220 dev = config_found(self, dict, bthub_print); 221 if (dev == NULL) 222 return ENXIO; 223 224 prop = device_properties(dev); 225 prop_dictionary_set(prop, BTDEVladdr, laddr); 226 prop_dictionary_set(prop, BTDEVraddr, raddr); 227 prop_dictionary_set(prop, BTDEVservice, service); 228 break; 229 230 case BTDEV_DETACH: /* detach BTDEV */ 231 if (dev == NULL) 232 return ENXIO; 233 234 config_detach(dev, DETACH_FORCE); 235 break; 236 } 237 238 return 0; 239 } 240 241 static int 242 bthub_print(void *aux, const char *pnp) 243 { 244 prop_dictionary_t dict = aux; 245 prop_object_t obj; 246 const bdaddr_t *raddr; 247 248 if (pnp != NULL) { 249 obj = prop_dictionary_get(dict, BTDEVtype); 250 aprint_normal("%s: %s '%s',", pnp, BTDEVtype, 251 prop_string_cstring_nocopy(obj)); 252 } 253 254 obj = prop_dictionary_get(dict, BTDEVraddr); 255 raddr = prop_data_data_nocopy(obj); 256 257 aprint_verbose(" %s %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", 258 BTDEVraddr, 259 raddr->b[5], raddr->b[4], raddr->b[3], 260 raddr->b[2], raddr->b[1], raddr->b[0]); 261 262 return UNCONF; 263 } 264
Indexes created Mon Sep 29 18:09:42 GMT 2025