1 /****************************************************************************** 2 * 3 * Copyright (C) 2009-2012 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 /************************************************************************************ 20 * 21 * Filename: bluetooth.c 22 * 23 * Description: Bluetooth HAL implementation 24 * 25 ***********************************************************************************/ 26 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <unistd.h> 30 31 #include <hardware/bluetooth.h> 32 #include <hardware/bt_hf.h> 33 #include <hardware/bt_av.h> 34 #include <hardware/bt_sock.h> 35 #include <hardware/bt_hh.h> 36 #include <hardware/bt_hl.h> 37 #include <hardware/bt_pan.h> 38 #include <hardware/bt_gatt.h> 39 #include <hardware/bt_rc.h> 40 41 #define LOG_NDDEBUG 0 42 #define LOG_TAG "bluedroid" 43 44 #include "btif_api.h" 45 #include "bt_utils.h" 46 47 /************************************************************************************ 48 ** Constants & Macros 49 ************************************************************************************/ 50 51 #define is_profile(profile, str) ((strlen(str) == strlen(profile)) && strncmp((const char *)profile, str, strlen(str)) == 0) 52 53 /************************************************************************************ 54 ** Local type definitions 55 ************************************************************************************/ 56 57 /************************************************************************************ 58 ** Static variables 59 ************************************************************************************/ 60 61 bt_callbacks_t *bt_hal_cbacks = NULL; 62 63 /************************************************************************************ 64 ** Static functions 65 ************************************************************************************/ 66 67 /************************************************************************************ 68 ** Externs 69 ************************************************************************************/ 70 71 /* list all extended interfaces here */ 72 73 /* handsfree profile */ 74 extern bthf_interface_t *btif_hf_get_interface(); 75 /* advanced audio profile */ 76 extern btav_interface_t *btif_av_get_interface(); 77 /*rfc l2cap*/ 78 extern btsock_interface_t *btif_sock_get_interface(); 79 /* hid host profile */ 80 extern bthh_interface_t *btif_hh_get_interface(); 81 /* health device profile */ 82 extern bthl_interface_t *btif_hl_get_interface(); 83 /*pan*/ 84 extern btpan_interface_t *btif_pan_get_interface(); 85 /* gatt */ 86 extern btgatt_interface_t *btif_gatt_get_interface(); 87 /* avrc */ 88 extern btrc_interface_t *btif_rc_get_interface(); 89 90 /************************************************************************************ 91 ** Functions 92 ************************************************************************************/ 93 94 static uint8_t interface_ready(void) 95 { 96 /* add checks here that would prevent API calls other than init to be executed */ 97 if (bt_hal_cbacks == NULL) 98 return FALSE; 99 100 return TRUE; 101 } 102 103 104 /***************************************************************************** 105 ** 106 ** BLUETOOTH HAL INTERFACE FUNCTIONS 107 ** 108 *****************************************************************************/ 109 110 static int init(bt_callbacks_t* callbacks ) 111 { 112 ALOGI("init"); 113 114 /* sanity check */ 115 if (interface_ready() == TRUE) 116 return BT_STATUS_DONE; 117 118 /* store reference to user callbacks */ 119 bt_hal_cbacks = callbacks; 120 121 /* add checks for individual callbacks ? */ 122 123 bt_utils_init(); 124 125 /* init btif */ 126 btif_init_bluetooth(); 127 128 return BT_STATUS_SUCCESS; 129 } 130 131 static int enable( void ) 132 { 133 ALOGI("enable"); 134 135 /* sanity check */ 136 if (interface_ready() == FALSE) 137 return BT_STATUS_NOT_READY; 138 139 return btif_enable_bluetooth(); 140 } 141 142 static int disable(void) 143 { 144 /* sanity check */ 145 if (interface_ready() == FALSE) 146 return BT_STATUS_NOT_READY; 147 148 return btif_disable_bluetooth(); 149 } 150 151 static void cleanup( void ) 152 { 153 /* sanity check */ 154 if (interface_ready() == FALSE) 155 return; 156 157 btif_shutdown_bluetooth(); 158 bt_utils_cleanup(); 159 160 /* hal callbacks reset upon shutdown complete callback */ 161 162 return; 163 } 164 165 static int get_adapter_properties(void) 166 { 167 /* sanity check */ 168 if (interface_ready() == FALSE) 169 return BT_STATUS_NOT_READY; 170 171 return btif_get_adapter_properties(); 172 } 173 174 static int get_adapter_property(bt_property_type_t type) 175 { 176 /* sanity check */ 177 if (interface_ready() == FALSE) 178 return BT_STATUS_NOT_READY; 179 180 return btif_get_adapter_property(type); 181 } 182 183 static int set_adapter_property(const bt_property_t *property) 184 { 185 /* sanity check */ 186 if (interface_ready() == FALSE) 187 return BT_STATUS_NOT_READY; 188 189 return btif_set_adapter_property(property); 190 } 191 192 int get_remote_device_properties(bt_bdaddr_t *remote_addr) 193 { 194 /* sanity check */ 195 if (interface_ready() == FALSE) 196 return BT_STATUS_NOT_READY; 197 198 return btif_get_remote_device_properties(remote_addr); 199 } 200 201 int get_remote_device_property(bt_bdaddr_t *remote_addr, bt_property_type_t type) 202 { 203 /* sanity check */ 204 if (interface_ready() == FALSE) 205 return BT_STATUS_NOT_READY; 206 207 return btif_get_remote_device_property(remote_addr, type); 208 } 209 210 int set_remote_device_property(bt_bdaddr_t *remote_addr, const bt_property_t *property) 211 { 212 /* sanity check */ 213 if (interface_ready() == FALSE) 214 return BT_STATUS_NOT_READY; 215 216 return btif_set_remote_device_property(remote_addr, property); 217 } 218 219 int get_remote_service_record(bt_bdaddr_t *remote_addr, bt_uuid_t *uuid) 220 { 221 /* sanity check */ 222 if (interface_ready() == FALSE) 223 return BT_STATUS_NOT_READY; 224 225 return btif_get_remote_service_record(remote_addr, uuid); 226 } 227 228 int get_remote_services(bt_bdaddr_t *remote_addr) 229 { 230 /* sanity check */ 231 if (interface_ready() == FALSE) 232 return BT_STATUS_NOT_READY; 233 234 return btif_dm_get_remote_services(remote_addr); 235 } 236 237 static int start_discovery(void) 238 { 239 /* sanity check */ 240 if (interface_ready() == FALSE) 241 return BT_STATUS_NOT_READY; 242 243 return btif_dm_start_discovery(); 244 } 245 246 static int cancel_discovery(void) 247 { 248 /* sanity check */ 249 if (interface_ready() == FALSE) 250 return BT_STATUS_NOT_READY; 251 252 return btif_dm_cancel_discovery(); 253 } 254 255 static int create_bond(const bt_bdaddr_t *bd_addr) 256 { 257 /* sanity check */ 258 if (interface_ready() == FALSE) 259 return BT_STATUS_NOT_READY; 260 261 return btif_dm_create_bond(bd_addr); 262 } 263 264 static int cancel_bond(const bt_bdaddr_t *bd_addr) 265 { 266 /* sanity check */ 267 if (interface_ready() == FALSE) 268 return BT_STATUS_NOT_READY; 269 270 return btif_dm_cancel_bond(bd_addr); 271 } 272 273 static int remove_bond(const bt_bdaddr_t *bd_addr) 274 { 275 /* sanity check */ 276 if (interface_ready() == FALSE) 277 return BT_STATUS_NOT_READY; 278 279 return btif_dm_remove_bond(bd_addr); 280 } 281 282 static int pin_reply(const bt_bdaddr_t *bd_addr, uint8_t accept, 283 uint8_t pin_len, bt_pin_code_t *pin_code) 284 { 285 /* sanity check */ 286 if (interface_ready() == FALSE) 287 return BT_STATUS_NOT_READY; 288 289 return btif_dm_pin_reply(bd_addr, accept, pin_len, pin_code); 290 } 291 292 static int ssp_reply(const bt_bdaddr_t *bd_addr, bt_ssp_variant_t variant, 293 uint8_t accept, uint32_t passkey) 294 { 295 /* sanity check */ 296 if (interface_ready() == FALSE) 297 return BT_STATUS_NOT_READY; 298 299 return btif_dm_ssp_reply(bd_addr, variant, accept, passkey); 300 } 301 302 static const void* get_profile_interface (const char *profile_id) 303 { 304 ALOGI("get_profile_interface %s", profile_id); 305 306 /* sanity check */ 307 if (interface_ready() == FALSE) 308 return NULL; 309 310 /* check for supported profile interfaces */ 311 if (is_profile(profile_id, BT_PROFILE_HANDSFREE_ID)) 312 return btif_hf_get_interface(); 313 314 if (is_profile(profile_id, BT_PROFILE_SOCKETS_ID)) 315 return btif_sock_get_interface(); 316 317 if (is_profile(profile_id, BT_PROFILE_PAN_ID)) 318 return btif_pan_get_interface(); 319 320 if (is_profile(profile_id, BT_PROFILE_ADVANCED_AUDIO_ID)) 321 return btif_av_get_interface(); 322 323 if (is_profile(profile_id, BT_PROFILE_HIDHOST_ID)) 324 return btif_hh_get_interface(); 325 326 if (is_profile(profile_id, BT_PROFILE_HEALTH_ID)) 327 return btif_hl_get_interface(); 328 329 #if BTA_GATT_INCLUDED == TRUE 330 if (is_profile(profile_id, BT_PROFILE_GATT_ID)) 331 return btif_gatt_get_interface(); 332 #endif 333 334 if (is_profile(profile_id, BT_PROFILE_AV_RC_ID)) 335 return btif_rc_get_interface(); 336 337 return NULL; 338 } 339 340 int dut_mode_configure(uint8_t enable) 341 { 342 ALOGI("dut_mode_configure"); 343 344 /* sanity check */ 345 if (interface_ready() == FALSE) 346 return BT_STATUS_NOT_READY; 347 348 return btif_dut_mode_configure(enable); 349 } 350 351 int dut_mode_send(uint16_t opcode, uint8_t* buf, uint8_t len) 352 { 353 ALOGI("dut_mode_send"); 354 355 /* sanity check */ 356 if (interface_ready() == FALSE) 357 return BT_STATUS_NOT_READY; 358 359 return btif_dut_mode_send(opcode, buf, len); 360 } 361 362 #if BLE_INCLUDED == TRUE 363 int le_test_mode(uint16_t opcode, uint8_t* buf, uint8_t len) 364 { 365 ALOGI("le_test_mode"); 366 367 /* sanity check */ 368 if (interface_ready() == FALSE) 369 return BT_STATUS_NOT_READY; 370 371 return btif_le_test_mode(opcode, buf, len); 372 } 373 #endif 374 375 static const bt_interface_t bluetoothInterface = { 376 sizeof(bluetoothInterface), 377 init, 378 enable, 379 disable, 380 cleanup, 381 get_adapter_properties, 382 get_adapter_property, 383 set_adapter_property, 384 get_remote_device_properties, 385 get_remote_device_property, 386 set_remote_device_property, 387 get_remote_service_record, 388 get_remote_services, 389 start_discovery, 390 cancel_discovery, 391 create_bond, 392 remove_bond, 393 cancel_bond, 394 pin_reply, 395 ssp_reply, 396 get_profile_interface, 397 dut_mode_configure, 398 dut_mode_send, 399 #if BLE_INCLUDED == TRUE 400 le_test_mode 401 #else 402 NULL 403 #endif 404 }; 405 406 const bt_interface_t* bluetooth__get_bluetooth_interface () 407 { 408 /* fixme -- add property to disable bt interface ? */ 409 410 return &bluetoothInterface; 411 } 412 413 static int close_bluetooth_stack(struct hw_device_t* device) 414 { 415 cleanup(); 416 return 0; 417 } 418 419 static int open_bluetooth_stack (const struct hw_module_t* module, char const* name, 420 struct hw_device_t** abstraction) 421 { 422 bluetooth_device_t *stack = malloc(sizeof(bluetooth_device_t) ); 423 memset(stack, 0, sizeof(bluetooth_device_t) ); 424 stack->common.tag = HARDWARE_DEVICE_TAG; 425 stack->common.version = 0; 426 stack->common.module = (struct hw_module_t*)module; 427 stack->common.close = close_bluetooth_stack; 428 stack->get_bluetooth_interface = bluetooth__get_bluetooth_interface; 429 *abstraction = (struct hw_device_t*)stack; 430 return 0; 431 } 432 433 434 static struct hw_module_methods_t bt_stack_module_methods = { 435 .open = open_bluetooth_stack, 436 }; 437 438 struct hw_module_t HAL_MODULE_INFO_SYM = { 439 .tag = HARDWARE_MODULE_TAG, 440 .version_major = 1, 441 .version_minor = 0, 442 .id = BT_HARDWARE_MODULE_ID, 443 .name = "Bluetooth Stack", 444 .author = "The Android Open Source Project", 445 .methods = &bt_stack_module_methods 446 }; 447 448
