The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2002-2012 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 | * This module contains API of the audio/video distribution transport |
| 22 | * protocol. |
| 23 | * |
| 24 | ******************************************************************************/ |
| 25 | |
| 26 | #include <string.h> |
| 27 | #include "data_types.h" |
| 28 | #include "bt_target.h" |
| 29 | #include "avdt_api.h" |
| 30 | #include "avdtc_api.h" |
| 31 | #include "avdt_int.h" |
| 32 | #include "l2c_api.h" |
| 33 | #include "btm_api.h" |
| 34 | #include "btu.h" |
| 35 | |
| 36 | |
| 37 | #if (defined BTTRC_INCLUDED && BTTRC_INCLUDED == TRUE) |
| 38 | #include "bttrc_str_ids.h" |
| 39 | #endif |
| 40 | |
| 41 | /* Control block for AVDT */ |
| 42 | #if AVDT_DYNAMIC_MEMORY == FALSE |
| 43 | tAVDT_CB avdt_cb; |
| 44 | #endif |
| 45 | |
| 46 | |
| 47 | /******************************************************************************* |
| 48 | ** |
| 49 | ** Function avdt_process_timeout |
| 50 | ** |
| 51 | ** Description This function is called by BTU when an AVDTP timer |
| 52 | ** expires. The function sends a timer event to the |
| 53 | ** appropriate CCB or SCB state machine. |
| 54 | ** |
| 55 | ** This function is for use internal to the stack only. |
| 56 | ** |
| 57 | ** |
| 58 | ** Returns void |
| 59 | ** |
| 60 | *******************************************************************************/ |
| 61 | void avdt_process_timeout(TIMER_LIST_ENT *p_tle) |
| 62 | { |
| 63 | UINT8 event = 0; |
| 64 | UINT8 err_code = AVDT_ERR_TIMEOUT; |
| 65 | |
| 66 | switch (p_tle->event) |
| 67 | { |
| 68 | case BTU_TTYPE_AVDT_CCB_RET: |
| 69 | event = AVDT_CCB_RET_TOUT_EVT + AVDT_CCB_MKR; |
| 70 | break; |
| 71 | |
| 72 | case BTU_TTYPE_AVDT_CCB_RSP: |
| 73 | event = AVDT_CCB_RSP_TOUT_EVT + AVDT_CCB_MKR; |
| 74 | break; |
| 75 | |
| 76 | case BTU_TTYPE_AVDT_CCB_IDLE: |
| 77 | event = AVDT_CCB_IDLE_TOUT_EVT + AVDT_CCB_MKR; |
| 78 | break; |
| 79 | |
| 80 | case BTU_TTYPE_AVDT_SCB_TC: |
| 81 | event = AVDT_SCB_TC_TOUT_EVT; |
| 82 | break; |
| 83 | |
| 84 | default: |
| 85 | break; |
| 86 | } |
| 87 | |
| 88 | if (event & AVDT_CCB_MKR) |
| 89 | { |
| 90 | avdt_ccb_event((tAVDT_CCB *) p_tle->param, (UINT8) (event & ~AVDT_CCB_MKR), |
| 91 | (tAVDT_CCB_EVT *) &err_code); |
| 92 | } |
| 93 | else |
| 94 | { |
| 95 | avdt_scb_event((tAVDT_SCB *) p_tle->param, event, NULL); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | /******************************************************************************* |
| 100 | ** |
| 101 | ** Function AVDT_Register |
| 102 | ** |
| 103 | ** Description This is the system level registration function for the |
| 104 | ** AVDTP protocol. This function initializes AVDTP and |
| 105 | ** prepares the protocol stack for its use. This function |
| 106 | ** must be called once by the system or platform using AVDTP |
| 107 | ** before the other functions of the API an be used. |
| 108 | ** |
| 109 | ** |
| 110 | ** Returns void |
| 111 | ** |
| 112 | *******************************************************************************/ |
| 113 | void AVDT_Register(tAVDT_REG *p_reg, tAVDT_CTRL_CBACK *p_cback) |
| 114 | { |
| 115 | |
| 116 | BTTRC_AVDT_API0(AVDT_TRACE_API_REGISTER); |
| 117 | |
| 118 | /* register PSM with L2CAP */ |
| 119 | L2CA_Register(AVDT_PSM, (tL2CAP_APPL_INFO *) &avdt_l2c_appl); |
| 120 | |
| 121 | /* set security level */ |
| 122 | BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVDTP, p_reg->sec_mask, |
| 123 | AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_SIG); |
| 124 | BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVDTP, p_reg->sec_mask, |
| 125 | AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_SIG); |
| 126 | |
| 127 | /* do not use security on the media channel */ |
| 128 | BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVDTP_NOSEC, BTM_SEC_NONE, |
| 129 | AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_MEDIA); |
| 130 | BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVDTP_NOSEC, BTM_SEC_NONE, |
| 131 | AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_MEDIA); |
| 132 | |
| 133 | #if AVDT_REPORTING == TRUE |
| 134 | /* do not use security on the reporting channel */ |
| 135 | BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVDTP_NOSEC, BTM_SEC_NONE, |
| 136 | AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_REPORT); |
| 137 | BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVDTP_NOSEC, BTM_SEC_NONE, |
| 138 | AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_REPORT); |
| 139 | #endif |
| 140 | |
| 141 | /* initialize AVDTP data structures */ |
| 142 | avdt_scb_init(); |
| 143 | avdt_ccb_init(); |
| 144 | avdt_ad_init(); |
| 145 | #if defined(AVDT_INITIAL_TRACE_LEVEL) |
| 146 | avdt_cb.trace_level = AVDT_INITIAL_TRACE_LEVEL; |
| 147 | #else |
| 148 | avdt_cb.trace_level = BT_TRACE_LEVEL_NONE; |
| 149 | #endif |
| 150 | |
| 151 | /* copy registration struct */ |
| 152 | memcpy(&avdt_cb.rcb, p_reg, sizeof(tAVDT_REG)); |
| 153 | avdt_cb.p_conn_cback = p_cback; |
| 154 | } |
| 155 | |
| 156 | /******************************************************************************* |
| 157 | ** |
| 158 | ** Function AVDT_Deregister |
| 159 | ** |
| 160 | ** Description This function is called to deregister use AVDTP protocol. |
| 161 | ** It is called when AVDTP is no longer being used by any |
| 162 | ** application in the system. Before this function can be |
| 163 | ** called, all streams must be removed with AVDT_RemoveStream(). |
| 164 | ** |
| 165 | ** |
| 166 | ** Returns void |
| 167 | ** |
| 168 | *******************************************************************************/ |
| 169 | void AVDT_Deregister(void) |
| 170 | { |
| 171 | BTTRC_AVDT_API0(AVDT_TRACE_API_DEREGISTER); |
| 172 | |
| 173 | /* deregister PSM with L2CAP */ |
| 174 | L2CA_Deregister(AVDT_PSM); |
| 175 | } |
| 176 | |
| 177 | /******************************************************************************* |
| 178 | ** |
| 179 | ** Function AVDT_CreateStream |
| 180 | ** |
| 181 | ** Description Create a stream endpoint. After a stream endpoint is |
| 182 | ** created an application can initiate a connection between |
| 183 | ** this endpoint and an endpoint on a peer device. In |
| 184 | ** addition, a peer device can discover, get the capabilities, |
| 185 | ** and connect to this endpoint. |
| 186 | ** |
| 187 | ** |
| 188 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 189 | ** |
| 190 | *******************************************************************************/ |
| 191 | UINT16 AVDT_CreateStream(UINT8 *p_handle, tAVDT_CS *p_cs) |
| 192 | { |
| 193 | UINT16 result = AVDT_SUCCESS; |
| 194 | tAVDT_SCB *p_scb; |
| 195 | |
| 196 | BTTRC_AVDT_API0(AVDT_TRACE_API_CREATESTREAM); |
| 197 | |
| 198 | /* Verify parameters; if invalid, return failure */ |
| 199 | if (((p_cs->cfg.psc_mask & (~AVDT_PSC)) != 0) || (p_cs->p_ctrl_cback == NULL)) |
| 200 | { |
| 201 | result = AVDT_BAD_PARAMS; |
| 202 | } |
| 203 | /* Allocate scb; if no scbs, return failure */ |
| 204 | else if ((p_scb = avdt_scb_alloc(p_cs)) == NULL) |
| 205 | { |
| 206 | result = AVDT_NO_RESOURCES; |
| 207 | } |
| 208 | else |
| 209 | { |
| 210 | *p_handle = avdt_scb_to_hdl(p_scb); |
| 211 | } |
| 212 | return result; |
| 213 | } |
| 214 | |
| 215 | /******************************************************************************* |
| 216 | ** |
| 217 | ** Function AVDT_RemoveStream |
| 218 | ** |
| 219 | ** Description Remove a stream endpoint. This function is called when |
| 220 | ** the application is no longer using a stream endpoint. |
| 221 | ** If this function is called when the endpoint is connected |
| 222 | ** the connection is closed and then the stream endpoint |
| 223 | ** is removed. |
| 224 | ** |
| 225 | ** |
| 226 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 227 | ** |
| 228 | *******************************************************************************/ |
| 229 | UINT16 AVDT_RemoveStream(UINT8 handle) |
| 230 | { |
| 231 | UINT16 result = AVDT_SUCCESS; |
| 232 | tAVDT_SCB *p_scb; |
| 233 | |
| 234 | |
| 235 | BTTRC_AVDT_API0(AVDT_TRACE_API_REMOVESTREAM); |
| 236 | |
| 237 | /* look up scb */ |
| 238 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 239 | { |
| 240 | result = AVDT_BAD_HANDLE; |
| 241 | } |
| 242 | else |
| 243 | { |
| 244 | /* send remove event to scb */ |
| 245 | avdt_scb_event(p_scb, AVDT_SCB_API_REMOVE_EVT, NULL); |
| 246 | } |
| 247 | return result; |
| 248 | } |
| 249 | |
| 250 | /******************************************************************************* |
| 251 | ** |
| 252 | ** Function AVDT_DiscoverReq |
| 253 | ** |
| 254 | ** Description This function initiates a connection to the AVDTP service |
| 255 | ** on the peer device, if not already present, and discovers |
| 256 | ** the stream endpoints on the peer device. (Please note |
| 257 | ** that AVDTP discovery is unrelated to SDP discovery). |
| 258 | ** This function can be called at any time regardless of whether |
| 259 | ** there is an AVDTP connection to the peer device. |
| 260 | ** |
| 261 | ** When discovery is complete, an AVDT_DISCOVER_CFM_EVT |
| 262 | ** is sent to the application via its callback function. |
| 263 | ** The application must not call AVDT_GetCapReq() or |
| 264 | ** AVDT_DiscoverReq() again to the same device until |
| 265 | ** discovery is complete. |
| 266 | ** |
| 267 | ** The memory addressed by sep_info is allocated by the |
| 268 | ** application. This memory is written to by AVDTP as part |
| 269 | ** of the discovery procedure. This memory must remain |
| 270 | ** accessible until the application receives the |
| 271 | ** AVDT_DISCOVER_CFM_EVT. |
| 272 | ** |
| 273 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 274 | ** |
| 275 | *******************************************************************************/ |
| 276 | UINT16 AVDT_DiscoverReq(BD_ADDR bd_addr, tAVDT_SEP_INFO *p_sep_info, |
| 277 | UINT8 max_seps, tAVDT_CTRL_CBACK *p_cback) |
| 278 | { |
| 279 | tAVDT_CCB *p_ccb; |
| 280 | UINT16 result = AVDT_SUCCESS; |
| 281 | tAVDT_CCB_EVT evt; |
| 282 | |
| 283 | BTTRC_AVDT_API0(AVDT_TRACE_API_DISCOVER_REQ); |
| 284 | |
| 285 | /* find channel control block for this bd addr; if none, allocate one */ |
| 286 | if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL) |
| 287 | { |
| 288 | if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL) |
| 289 | { |
| 290 | /* could not allocate channel control block */ |
| 291 | result = AVDT_NO_RESOURCES; |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | if (result == AVDT_SUCCESS) |
| 296 | { |
| 297 | /* make sure no discovery or get capabilities req already in progress */ |
| 298 | if (p_ccb->proc_busy) |
| 299 | { |
| 300 | result = AVDT_BUSY; |
| 301 | } |
| 302 | /* send event to ccb */ |
| 303 | else |
| 304 | { |
| 305 | evt.discover.p_sep_info = p_sep_info; |
| 306 | evt.discover.num_seps = max_seps; |
| 307 | evt.discover.p_cback = p_cback; |
| 308 | avdt_ccb_event(p_ccb, AVDT_CCB_API_DISCOVER_REQ_EVT, &evt); |
| 309 | } |
| 310 | } |
| 311 | return result; |
| 312 | } |
| 313 | |
| 314 | /******************************************************************************* |
| 315 | ** |
| 316 | ** Function avdt_get_cap_req |
| 317 | ** |
| 318 | ** Description internal function to serve both AVDT_GetCapReq and |
| 319 | ** AVDT_GetAllCapReq |
| 320 | ** |
| 321 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 322 | ** |
| 323 | *******************************************************************************/ |
| 324 | static UINT16 avdt_get_cap_req(BD_ADDR bd_addr, tAVDT_CCB_API_GETCAP *p_evt) |
| 325 | { |
| 326 | tAVDT_CCB *p_ccb = NULL; |
| 327 | UINT16 result = AVDT_SUCCESS; |
| 328 | |
| 329 | /* verify SEID */ |
| 330 | if ((p_evt->single.seid < AVDT_SEID_MIN) || (p_evt->single.seid > AVDT_SEID_MAX)) |
| 331 | { |
| 332 | AVDT_TRACE_ERROR1("seid: %d", p_evt->single.seid); |
| 333 | result = AVDT_BAD_PARAMS; |
| 334 | } |
| 335 | /* find channel control block for this bd addr; if none, allocate one */ |
| 336 | else if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL) |
| 337 | { |
| 338 | if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL) |
| 339 | { |
| 340 | /* could not allocate channel control block */ |
| 341 | result = AVDT_NO_RESOURCES; |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | if (result == AVDT_SUCCESS) |
| 346 | { |
| 347 | /* make sure no discovery or get capabilities req already in progress */ |
| 348 | if (p_ccb->proc_busy) |
| 349 | { |
| 350 | result = AVDT_BUSY; |
| 351 | } |
| 352 | /* send event to ccb */ |
| 353 | else |
| 354 | { |
| 355 | avdt_ccb_event(p_ccb, AVDT_CCB_API_GETCAP_REQ_EVT, (tAVDT_CCB_EVT *)p_evt); |
| 356 | } |
| 357 | } |
| 358 | return result; |
| 359 | } |
| 360 | |
| 361 | /******************************************************************************* |
| 362 | ** |
| 363 | ** Function AVDT_GetCapReq |
| 364 | ** |
| 365 | ** Description This function initiates a connection to the AVDTP service |
| 366 | ** on the peer device, if not already present, and gets the |
| 367 | ** capabilities of a stream endpoint on the peer device. |
| 368 | ** This function can be called at any time regardless of |
| 369 | ** whether there is an AVDTP connection to the peer device. |
| 370 | ** |
| 371 | ** When the procedure is complete, an AVDT_GETCAP_CFM_EVT is |
| 372 | ** sent to the application via its callback function. The |
| 373 | ** application must not call AVDT_GetCapReq() or |
| 374 | ** AVDT_DiscoverReq() again until the procedure is complete. |
| 375 | ** |
| 376 | ** The memory pointed to by p_cfg is allocated by the |
| 377 | ** application. This memory is written to by AVDTP as part |
| 378 | ** of the get capabilities procedure. This memory must |
| 379 | ** remain accessible until the application receives |
| 380 | ** the AVDT_GETCAP_CFM_EVT. |
| 381 | ** |
| 382 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 383 | ** |
| 384 | *******************************************************************************/ |
| 385 | UINT16 AVDT_GetCapReq(BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg, tAVDT_CTRL_CBACK *p_cback) |
| 386 | { |
| 387 | tAVDT_CCB_API_GETCAP getcap; |
| 388 | |
| 389 | BTTRC_AVDT_API1(AVDT_TRACE_API_GETCAP_REQ, BTTRC_PARAM_UINT8, seid); |
| 390 | |
| 391 | getcap.single.seid = seid; |
| 392 | getcap.single.sig_id = AVDT_SIG_GETCAP; |
| 393 | getcap.p_cfg = p_cfg; |
| 394 | getcap.p_cback = p_cback; |
| 395 | return avdt_get_cap_req (bd_addr, &getcap); |
| 396 | } |
| 397 | |
| 398 | /******************************************************************************* |
| 399 | ** |
| 400 | ** Function AVDT_GetAllCapReq |
| 401 | ** |
| 402 | ** Description This function initiates a connection to the AVDTP service |
| 403 | ** on the peer device, if not already present, and gets the |
| 404 | ** capabilities of a stream endpoint on the peer device. |
| 405 | ** This function can be called at any time regardless of |
| 406 | ** whether there is an AVDTP connection to the peer device. |
| 407 | ** |
| 408 | ** When the procedure is complete, an AVDT_GETCAP_CFM_EVT is |
| 409 | ** sent to the application via its callback function. The |
| 410 | ** application must not call AVDT_GetCapReq() or |
| 411 | ** AVDT_DiscoverReq() again until the procedure is complete. |
| 412 | ** |
| 413 | ** The memory pointed to by p_cfg is allocated by the |
| 414 | ** application. This memory is written to by AVDTP as part |
| 415 | ** of the get capabilities procedure. This memory must |
| 416 | ** remain accessible until the application receives |
| 417 | ** the AVDT_GETCAP_CFM_EVT. |
| 418 | ** |
| 419 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 420 | ** |
| 421 | *******************************************************************************/ |
| 422 | UINT16 AVDT_GetAllCapReq(BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg, tAVDT_CTRL_CBACK *p_cback) |
| 423 | { |
| 424 | tAVDT_CCB_API_GETCAP getcap; |
| 425 | |
| 426 | BTTRC_AVDT_API1(AVDT_TRACE_API_GET_ALLCAP_REQ, BTTRC_PARAM_UINT8, seid); |
| 427 | |
| 428 | getcap.single.seid = seid; |
| 429 | getcap.single.sig_id = AVDT_SIG_GET_ALLCAP; |
| 430 | getcap.p_cfg = p_cfg; |
| 431 | getcap.p_cback = p_cback; |
| 432 | return avdt_get_cap_req (bd_addr, &getcap); |
| 433 | } |
| 434 | |
| 435 | /******************************************************************************* |
| 436 | ** |
| 437 | ** Function AVDT_DelayReport |
| 438 | ** |
| 439 | ** Description This functions sends a Delay Report to the peer device |
| 440 | ** that is associated with a particular SEID. |
| 441 | ** This function is called by SNK device. |
| 442 | ** |
| 443 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 444 | ** |
| 445 | *******************************************************************************/ |
| 446 | UINT16 AVDT_DelayReport(UINT8 handle, UINT8 seid, UINT16 delay) |
| 447 | { |
| 448 | tAVDT_SCB *p_scb; |
| 449 | UINT16 result = AVDT_SUCCESS; |
| 450 | tAVDT_SCB_EVT evt; |
| 451 | |
| 452 | BTTRC_AVDT_API0(AVDT_TRACE_API_DELAY_REPORT); |
| 453 | |
| 454 | /* map handle to scb */ |
| 455 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 456 | { |
| 457 | result = AVDT_BAD_HANDLE; |
| 458 | } |
| 459 | else |
| 460 | /* send event to scb */ |
| 461 | { |
| 462 | evt.apidelay.hdr.seid = seid; |
| 463 | evt.apidelay.delay = delay; |
| 464 | avdt_scb_event(p_scb, AVDT_SCB_API_DELAY_RPT_REQ_EVT, &evt); |
| 465 | } |
| 466 | |
| 467 | return result; |
| 468 | } |
| 469 | |
| 470 | /******************************************************************************* |
| 471 | ** |
| 472 | ** Function AVDT_OpenReq |
| 473 | ** |
| 474 | ** Description This function initiates a connection to the AVDTP service |
| 475 | ** on the peer device, if not already present, and connects |
| 476 | ** to a stream endpoint on a peer device. When the connection |
| 477 | ** is completed, an AVDT_OPEN_CFM_EVT is sent to the |
| 478 | ** application via the control callback function for this handle. |
| 479 | ** |
| 480 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 481 | ** |
| 482 | *******************************************************************************/ |
| 483 | UINT16 AVDT_OpenReq(UINT8 handle, BD_ADDR bd_addr, UINT8 seid, tAVDT_CFG *p_cfg) |
| 484 | { |
| 485 | tAVDT_CCB *p_ccb = NULL; |
| 486 | tAVDT_SCB *p_scb = NULL; |
| 487 | UINT16 result = AVDT_SUCCESS; |
| 488 | tAVDT_SCB_EVT evt; |
| 489 | |
| 490 | BTTRC_AVDT_API0(AVDT_TRACE_API_OPEN_REQ); |
| 491 | |
| 492 | |
| 493 | /* verify SEID */ |
| 494 | if ((seid < AVDT_SEID_MIN) || (seid > AVDT_SEID_MAX)) |
| 495 | { |
| 496 | result = AVDT_BAD_PARAMS; |
| 497 | } |
| 498 | /* map handle to scb */ |
| 499 | else if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 500 | { |
| 501 | result = AVDT_BAD_HANDLE; |
| 502 | } |
| 503 | /* find channel control block for this bd addr; if none, allocate one */ |
| 504 | else if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL) |
| 505 | { |
| 506 | if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL) |
| 507 | { |
| 508 | /* could not allocate channel control block */ |
| 509 | result = AVDT_NO_RESOURCES; |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | /* send event to scb */ |
| 514 | if (result == AVDT_SUCCESS) |
| 515 | { |
| 516 | evt.msg.config_cmd.hdr.seid = seid; |
| 517 | evt.msg.config_cmd.hdr.ccb_idx = avdt_ccb_to_idx(p_ccb); |
| 518 | evt.msg.config_cmd.int_seid = handle; |
| 519 | evt.msg.config_cmd.p_cfg = p_cfg; |
| 520 | avdt_scb_event(p_scb, AVDT_SCB_API_SETCONFIG_REQ_EVT, &evt); |
| 521 | } |
| 522 | return result; |
| 523 | } |
| 524 | |
| 525 | /******************************************************************************* |
| 526 | ** |
| 527 | ** Function AVDT_ConfigRsp |
| 528 | ** |
| 529 | ** Description Respond to a configure request from the peer device. This |
| 530 | ** function must be called if the application receives an |
| 531 | ** AVDT_CONFIG_IND_EVT through its control callback. |
| 532 | ** |
| 533 | ** |
| 534 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 535 | ** |
| 536 | *******************************************************************************/ |
| 537 | UINT16 AVDT_ConfigRsp(UINT8 handle, UINT8 label, UINT8 error_code, UINT8 category) |
| 538 | { |
| 539 | tAVDT_SCB *p_scb; |
| 540 | tAVDT_SCB_EVT evt; |
| 541 | UINT16 result = AVDT_SUCCESS; |
| 542 | UINT8 event_code; |
| 543 | |
| 544 | BTTRC_AVDT_API0(AVDT_TRACE_API_CONFIG_RSP); |
| 545 | |
| 546 | /* map handle to scb */ |
| 547 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 548 | { |
| 549 | result = AVDT_BAD_HANDLE; |
| 550 | } |
| 551 | /* handle special case when this function is called but peer has not send |
| 552 | ** a configuration cmd; ignore and return error result |
| 553 | */ |
| 554 | else if (!p_scb->in_use) |
| 555 | { |
| 556 | result = AVDT_BAD_HANDLE; |
| 557 | } |
| 558 | /* send event to scb */ |
| 559 | else |
| 560 | { |
| 561 | evt.msg.hdr.err_code = error_code; |
| 562 | evt.msg.hdr.err_param = category; |
| 563 | evt.msg.hdr.label = label; |
| 564 | if (error_code == 0) |
| 565 | { |
| 566 | event_code = AVDT_SCB_API_SETCONFIG_RSP_EVT; |
| 567 | } |
| 568 | else |
| 569 | { |
| 570 | event_code = AVDT_SCB_API_SETCONFIG_REJ_EVT; |
| 571 | } |
| 572 | avdt_scb_event(p_scb, event_code, &evt); |
| 573 | } |
| 574 | |
| 575 | return result; |
| 576 | } |
| 577 | |
| 578 | /******************************************************************************* |
| 579 | ** |
| 580 | ** Function AVDT_StartReq |
| 581 | ** |
| 582 | ** Description Start one or more stream endpoints. This initiates the |
| 583 | ** transfer of media packets for the streams. All stream |
| 584 | ** endpoints must previously be opened. When the streams |
| 585 | ** are started, an AVDT_START_CFM_EVT is sent to the |
| 586 | ** application via the control callback function for each stream. |
| 587 | ** |
| 588 | ** |
| 589 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 590 | ** |
| 591 | *******************************************************************************/ |
| 592 | UINT16 AVDT_StartReq(UINT8 *p_handles, UINT8 num_handles) |
| 593 | { |
| 594 | tAVDT_SCB *p_scb = NULL; |
| 595 | tAVDT_CCB_EVT evt; |
| 596 | UINT16 result = AVDT_SUCCESS; |
| 597 | int i; |
| 598 | |
| 599 | BTTRC_AVDT_API0(AVDT_TRACE_API_START_REQ); |
| 600 | |
| 601 | if ((num_handles == 0) || (num_handles > AVDT_NUM_SEPS)) |
| 602 | { |
| 603 | result = AVDT_BAD_PARAMS; |
| 604 | } |
| 605 | else |
| 606 | { |
| 607 | /* verify handles */ |
| 608 | for (i = 0; i < num_handles; i++) |
| 609 | { |
| 610 | if ((p_scb = avdt_scb_by_hdl(p_handles[i])) == NULL) |
| 611 | { |
| 612 | result = AVDT_BAD_HANDLE; |
| 613 | break; |
| 614 | } |
| 615 | } |
| 616 | } |
| 617 | |
| 618 | if (result == AVDT_SUCCESS) |
| 619 | { |
| 620 | if (p_scb->p_ccb == NULL) |
| 621 | { |
| 622 | result = AVDT_BAD_HANDLE; |
| 623 | } |
| 624 | else |
| 625 | { |
| 626 | /* send event to ccb */ |
| 627 | memcpy(evt.msg.multi.seid_list, p_handles, num_handles); |
| 628 | evt.msg.multi.num_seps = num_handles; |
| 629 | avdt_ccb_event(p_scb->p_ccb, AVDT_CCB_API_START_REQ_EVT, &evt); |
| 630 | } |
| 631 | } |
| 632 | return result; |
| 633 | } |
| 634 | |
| 635 | /******************************************************************************* |
| 636 | ** |
| 637 | ** Function AVDT_SuspendReq |
| 638 | ** |
| 639 | ** Description Suspend one or more stream endpoints. This suspends the |
| 640 | ** transfer of media packets for the streams. All stream |
| 641 | ** endpoints must previously be open and started. When the |
| 642 | ** streams are suspended, an AVDT_SUSPEND_CFM_EVT is sent to |
| 643 | ** the application via the control callback function for |
| 644 | ** each stream. |
| 645 | ** |
| 646 | ** |
| 647 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 648 | ** |
| 649 | *******************************************************************************/ |
| 650 | UINT16 AVDT_SuspendReq(UINT8 *p_handles, UINT8 num_handles) |
| 651 | { |
| 652 | tAVDT_SCB *p_scb = NULL; |
| 653 | tAVDT_CCB_EVT evt; |
| 654 | UINT16 result = AVDT_SUCCESS; |
| 655 | int i; |
| 656 | |
| 657 | BTTRC_AVDT_API0(AVDT_TRACE_API_SUSPEND_REQ); |
| 658 | |
| 659 | if ((num_handles == 0) || (num_handles > AVDT_NUM_SEPS)) |
| 660 | { |
| 661 | result = AVDT_BAD_PARAMS; |
| 662 | } |
| 663 | else |
| 664 | { |
| 665 | /* verify handles */ |
| 666 | for (i = 0; i < num_handles; i++) |
| 667 | { |
| 668 | if ((p_scb = avdt_scb_by_hdl(p_handles[i])) == NULL) |
| 669 | { |
| 670 | result = AVDT_BAD_HANDLE; |
| 671 | break; |
| 672 | } |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | if (result == AVDT_SUCCESS) |
| 677 | { |
| 678 | if (p_scb->p_ccb == NULL) |
| 679 | { |
| 680 | result = AVDT_BAD_HANDLE; |
| 681 | } |
| 682 | else |
| 683 | { |
| 684 | /* send event to ccb */ |
| 685 | memcpy(evt.msg.multi.seid_list, p_handles, num_handles); |
| 686 | evt.msg.multi.num_seps = num_handles; |
| 687 | avdt_ccb_event(p_scb->p_ccb, AVDT_CCB_API_SUSPEND_REQ_EVT, &evt); |
| 688 | } |
| 689 | } |
| 690 | |
| 691 | return result; |
| 692 | } |
| 693 | |
| 694 | /******************************************************************************* |
| 695 | ** |
| 696 | ** Function AVDT_CloseReq |
| 697 | ** |
| 698 | ** Description Close a stream endpoint. This stops the transfer of media |
| 699 | ** packets and closes the transport channel associated with |
| 700 | ** this stream endpoint. When the stream is closed, an |
| 701 | ** AVDT_CLOSE_CFM_EVT is sent to the application via the |
| 702 | ** control callback function for this handle. |
| 703 | ** |
| 704 | ** |
| 705 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 706 | ** |
| 707 | *******************************************************************************/ |
| 708 | UINT16 AVDT_CloseReq(UINT8 handle) |
| 709 | { |
| 710 | tAVDT_SCB *p_scb; |
| 711 | UINT16 result = AVDT_SUCCESS; |
| 712 | |
| 713 | BTTRC_AVDT_API0(AVDT_TRACE_API_CLOSE_REQ); |
| 714 | |
| 715 | /* map handle to scb */ |
| 716 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 717 | { |
| 718 | result = AVDT_BAD_HANDLE; |
| 719 | } |
| 720 | else |
| 721 | /* send event to scb */ |
| 722 | { |
| 723 | avdt_scb_event(p_scb, AVDT_SCB_API_CLOSE_REQ_EVT, NULL); |
| 724 | } |
| 725 | |
| 726 | return result; |
| 727 | } |
| 728 | |
| 729 | /******************************************************************************* |
| 730 | ** |
| 731 | ** Function AVDT_ReconfigReq |
| 732 | ** |
| 733 | ** Description Reconfigure a stream endpoint. This allows the application |
| 734 | ** to change the codec or content protection capabilities of |
| 735 | ** a stream endpoint after it has been opened. This function |
| 736 | ** can only be called if the stream is opened but not started |
| 737 | ** or if the stream has been suspended. When the procedure |
| 738 | ** is completed, an AVDT_RECONFIG_CFM_EVT is sent to the |
| 739 | ** application via the control callback function for this handle. |
| 740 | ** |
| 741 | ** |
| 742 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 743 | ** |
| 744 | *******************************************************************************/ |
| 745 | UINT16 AVDT_ReconfigReq(UINT8 handle, tAVDT_CFG *p_cfg) |
| 746 | { |
| 747 | tAVDT_SCB *p_scb; |
| 748 | UINT16 result = AVDT_SUCCESS; |
| 749 | tAVDT_SCB_EVT evt; |
| 750 | |
| 751 | BTTRC_AVDT_API0(AVDT_TRACE_API_RECONFIG_REQ); |
| 752 | |
| 753 | /* map handle to scb */ |
| 754 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 755 | { |
| 756 | result = AVDT_BAD_HANDLE; |
| 757 | } |
| 758 | /* send event to scb */ |
| 759 | else |
| 760 | { |
| 761 | /* force psc_mask to zero */ |
| 762 | p_cfg->psc_mask = 0; |
| 763 | |
| 764 | evt.msg.reconfig_cmd.p_cfg = p_cfg; |
| 765 | avdt_scb_event(p_scb, AVDT_SCB_API_RECONFIG_REQ_EVT, &evt); |
| 766 | } |
| 767 | return result; |
| 768 | } |
| 769 | |
| 770 | /******************************************************************************* |
| 771 | ** |
| 772 | ** Function AVDT_ReconfigRsp |
| 773 | ** |
| 774 | ** Description Respond to a reconfigure request from the peer device. |
| 775 | ** This function must be called if the application receives |
| 776 | ** an AVDT_RECONFIG_IND_EVT through its control callback. |
| 777 | ** |
| 778 | ** |
| 779 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 780 | ** |
| 781 | *******************************************************************************/ |
| 782 | UINT16 AVDT_ReconfigRsp(UINT8 handle, UINT8 label, UINT8 error_code, UINT8 category) |
| 783 | { |
| 784 | tAVDT_SCB *p_scb; |
| 785 | tAVDT_SCB_EVT evt; |
| 786 | UINT16 result = AVDT_SUCCESS; |
| 787 | |
| 788 | BTTRC_AVDT_API0(AVDT_TRACE_API_RECONFIG_RSP); |
| 789 | |
| 790 | /* map handle to scb */ |
| 791 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 792 | { |
| 793 | result = AVDT_BAD_HANDLE; |
| 794 | } |
| 795 | /* send event to scb */ |
| 796 | else |
| 797 | { |
| 798 | evt.msg.hdr.err_code = error_code; |
| 799 | evt.msg.hdr.err_param = category; |
| 800 | evt.msg.hdr.label = label; |
| 801 | avdt_scb_event(p_scb, AVDT_SCB_API_RECONFIG_RSP_EVT, &evt); |
| 802 | } |
| 803 | |
| 804 | return result; |
| 805 | } |
| 806 | |
| 807 | /******************************************************************************* |
| 808 | ** |
| 809 | ** Function AVDT_SecurityReq |
| 810 | ** |
| 811 | ** Description Send a security request to the peer device. When the |
| 812 | ** security procedure is completed, an AVDT_SECURITY_CFM_EVT |
| 813 | ** is sent to the application via the control callback function |
| 814 | ** for this handle. (Please note that AVDTP security procedures |
| 815 | ** are unrelated to Bluetooth link level security.) |
| 816 | ** |
| 817 | ** |
| 818 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 819 | ** |
| 820 | *******************************************************************************/ |
| 821 | UINT16 AVDT_SecurityReq(UINT8 handle, UINT8 *p_data, UINT16 len) |
| 822 | { |
| 823 | tAVDT_SCB *p_scb; |
| 824 | UINT16 result = AVDT_SUCCESS; |
| 825 | tAVDT_SCB_EVT evt; |
| 826 | |
| 827 | BTTRC_AVDT_API0(AVDT_TRACE_API_SECURITY_REQ); |
| 828 | |
| 829 | /* map handle to scb */ |
| 830 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 831 | { |
| 832 | result = AVDT_BAD_HANDLE; |
| 833 | } |
| 834 | /* send event to scb */ |
| 835 | else |
| 836 | { |
| 837 | evt.msg.security_rsp.p_data = p_data; |
| 838 | evt.msg.security_rsp.len = len; |
| 839 | avdt_scb_event(p_scb, AVDT_SCB_API_SECURITY_REQ_EVT, &evt); |
| 840 | } |
| 841 | return result; |
| 842 | } |
| 843 | |
| 844 | /******************************************************************************* |
| 845 | ** |
| 846 | ** Function AVDT_SecurityRsp |
| 847 | ** |
| 848 | ** Description Respond to a security request from the peer device. |
| 849 | ** This function must be called if the application receives |
| 850 | ** an AVDT_SECURITY_IND_EVT through its control callback. |
| 851 | ** (Please note that AVDTP security procedures are unrelated |
| 852 | ** to Bluetooth link level security.) |
| 853 | ** |
| 854 | ** |
| 855 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 856 | ** |
| 857 | *******************************************************************************/ |
| 858 | UINT16 AVDT_SecurityRsp(UINT8 handle, UINT8 label, UINT8 error_code, |
| 859 | UINT8 *p_data, UINT16 len) |
| 860 | { |
| 861 | tAVDT_SCB *p_scb; |
| 862 | UINT16 result = AVDT_SUCCESS; |
| 863 | tAVDT_SCB_EVT evt; |
| 864 | |
| 865 | BTTRC_AVDT_API0(AVDT_TRACE_API_SECURITY_RSP); |
| 866 | |
| 867 | /* map handle to scb */ |
| 868 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 869 | { |
| 870 | result = AVDT_BAD_HANDLE; |
| 871 | } |
| 872 | /* send event to scb */ |
| 873 | else |
| 874 | { |
| 875 | evt.msg.security_rsp.hdr.err_code = error_code; |
| 876 | evt.msg.security_rsp.hdr.label = label; |
| 877 | evt.msg.security_rsp.p_data = p_data; |
| 878 | evt.msg.security_rsp.len = len; |
| 879 | avdt_scb_event(p_scb, AVDT_SCB_API_SECURITY_RSP_EVT, &evt); |
| 880 | } |
| 881 | return result; |
| 882 | } |
| 883 | |
| 884 | /******************************************************************************* |
| 885 | ** |
Ganesh Ganapathi Batta | ead3cde | 2013-02-05 15:22:31 -0800 | [diff] [blame] | 886 | ** Function AVDT_WriteReqOpt |
| 887 | ** |
| 888 | ** Description Send a media packet to the peer device. The stream must |
| 889 | ** be started before this function is called. Also, this |
| 890 | ** function can only be called if the stream is a SRC. |
| 891 | ** |
| 892 | ** When AVDTP has sent the media packet and is ready for the |
| 893 | ** next packet, an AVDT_WRITE_CFM_EVT is sent to the |
| 894 | ** application via the control callback. The application must |
| 895 | ** wait for the AVDT_WRITE_CFM_EVT before it makes the next |
| 896 | ** call to AVDT_WriteReq(). If the applications calls |
| 897 | ** AVDT_WriteReq() before it receives the event the packet |
| 898 | ** will not be sent. The application may make its first call |
| 899 | ** to AVDT_WriteReq() after it receives an AVDT_START_CFM_EVT |
| 900 | ** or AVDT_START_IND_EVT. |
| 901 | ** |
| 902 | ** The application passes the packet using the BT_HDR structure. |
| 903 | ** This structure is described in section 2.1. The offset |
| 904 | ** field must be equal to or greater than AVDT_MEDIA_OFFSET |
| 905 | ** (if NO_RTP is specified, L2CAP_MIN_OFFSET can be used). |
| 906 | ** This allows enough space in the buffer for the L2CAP and |
| 907 | ** AVDTP headers. |
| 908 | ** |
| 909 | ** The memory pointed to by p_pkt must be a GKI buffer |
| 910 | ** allocated by the application. This buffer will be freed |
| 911 | ** by the protocol stack; the application must not free |
| 912 | ** this buffer. |
| 913 | ** |
| 914 | ** The opt parameter allows passing specific options like: |
| 915 | ** - NO_RTP : do not add the RTP header to buffer |
| 916 | ** |
| 917 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 918 | ** |
| 919 | *******************************************************************************/ |
| 920 | UINT16 AVDT_WriteReqOpt(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt, tAVDT_DATA_OPT_MASK opt) |
| 921 | { |
| 922 | tAVDT_SCB *p_scb; |
| 923 | tAVDT_SCB_EVT evt; |
| 924 | UINT16 result = AVDT_SUCCESS; |
| 925 | |
| 926 | BTTRC_AVDT_API0(AVDT_TRACE_API_WRITE_REQ); |
| 927 | |
| 928 | /* map handle to scb */ |
| 929 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 930 | { |
| 931 | result = AVDT_BAD_HANDLE; |
| 932 | } |
| 933 | else |
| 934 | { |
| 935 | evt.apiwrite.p_buf = p_pkt; |
| 936 | evt.apiwrite.time_stamp = time_stamp; |
| 937 | evt.apiwrite.m_pt = m_pt; |
| 938 | evt.apiwrite.opt = opt; |
| 939 | #if AVDT_MULTIPLEXING == TRUE |
| 940 | GKI_init_q (&evt.apiwrite.frag_q); |
| 941 | #endif |
| 942 | avdt_scb_event(p_scb, AVDT_SCB_API_WRITE_REQ_EVT, &evt); |
| 943 | } |
| 944 | |
| 945 | return result; |
| 946 | } |
| 947 | |
| 948 | /******************************************************************************* |
| 949 | ** |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 950 | ** Function AVDT_WriteReq |
| 951 | ** |
| 952 | ** Description Send a media packet to the peer device. The stream must |
| 953 | ** be started before this function is called. Also, this |
| 954 | ** function can only be called if the stream is a SRC. |
| 955 | ** |
| 956 | ** When AVDTP has sent the media packet and is ready for the |
| 957 | ** next packet, an AVDT_WRITE_CFM_EVT is sent to the |
| 958 | ** application via the control callback. The application must |
| 959 | ** wait for the AVDT_WRITE_CFM_EVT before it makes the next |
| 960 | ** call to AVDT_WriteReq(). If the applications calls |
| 961 | ** AVDT_WriteReq() before it receives the event the packet |
| 962 | ** will not be sent. The application may make its first call |
| 963 | ** to AVDT_WriteReq() after it receives an AVDT_START_CFM_EVT |
| 964 | ** or AVDT_START_IND_EVT. |
| 965 | ** |
| 966 | ** The application passes the packet using the BT_HDR structure. |
| 967 | ** This structure is described in section 2.1. The offset |
| 968 | ** field must be equal to or greater than AVDT_MEDIA_OFFSET. |
| 969 | ** This allows enough space in the buffer for the L2CAP and |
| 970 | ** AVDTP headers. |
| 971 | ** |
| 972 | ** The memory pointed to by p_pkt must be a GKI buffer |
| 973 | ** allocated by the application. This buffer will be freed |
| 974 | ** by the protocol stack; the application must not free |
| 975 | ** this buffer. |
| 976 | ** |
| 977 | ** |
| 978 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 979 | ** |
| 980 | *******************************************************************************/ |
| 981 | UINT16 AVDT_WriteReq(UINT8 handle, BT_HDR *p_pkt, UINT32 time_stamp, UINT8 m_pt) |
| 982 | { |
Ganesh Ganapathi Batta | ead3cde | 2013-02-05 15:22:31 -0800 | [diff] [blame] | 983 | return AVDT_WriteReqOpt(handle, p_pkt, time_stamp, m_pt, AVDT_DATA_OPT_NONE); |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 984 | } |
| 985 | |
| 986 | /******************************************************************************* |
| 987 | ** |
| 988 | ** Function AVDT_ConnectReq |
| 989 | ** |
| 990 | ** Description This function initiates an AVDTP signaling connection |
| 991 | ** to the peer device. When the connection is completed, an |
| 992 | ** AVDT_CONNECT_IND_EVT is sent to the application via its |
| 993 | ** control callback function. If the connection attempt fails |
| 994 | ** an AVDT_DISCONNECT_IND_EVT is sent. The security mask |
| 995 | ** parameter overrides the outgoing security mask set in |
| 996 | ** AVDT_Register(). |
| 997 | ** |
| 998 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 999 | ** |
| 1000 | *******************************************************************************/ |
| 1001 | UINT16 AVDT_ConnectReq(BD_ADDR bd_addr, UINT8 sec_mask, tAVDT_CTRL_CBACK *p_cback) |
| 1002 | { |
| 1003 | tAVDT_CCB *p_ccb = NULL; |
| 1004 | UINT16 result = AVDT_SUCCESS; |
| 1005 | tAVDT_CCB_EVT evt; |
| 1006 | |
| 1007 | BTTRC_AVDT_API0(AVDT_TRACE_API_CONNECT_REQ); |
| 1008 | |
| 1009 | /* find channel control block for this bd addr; if none, allocate one */ |
| 1010 | if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL) |
| 1011 | { |
| 1012 | if ((p_ccb = avdt_ccb_alloc(bd_addr)) == NULL) |
| 1013 | { |
| 1014 | /* could not allocate channel control block */ |
| 1015 | result = AVDT_NO_RESOURCES; |
| 1016 | } |
| 1017 | } |
| 1018 | else if (p_ccb->ll_opened == FALSE) |
| 1019 | { |
| 1020 | AVDT_TRACE_WARNING0("AVDT_ConnectReq: CCB LL is in the middle of opening"); |
| 1021 | |
| 1022 | /* ccb was already allocated for the incoming signalling. */ |
| 1023 | result = AVDT_BUSY; |
| 1024 | } |
| 1025 | |
| 1026 | if (result == AVDT_SUCCESS) |
| 1027 | { |
| 1028 | /* send event to ccb */ |
| 1029 | evt.connect.p_cback = p_cback; |
| 1030 | evt.connect.sec_mask = sec_mask; |
| 1031 | avdt_ccb_event(p_ccb, AVDT_CCB_API_CONNECT_REQ_EVT, &evt); |
| 1032 | } |
| 1033 | return result; |
| 1034 | } |
| 1035 | |
| 1036 | /******************************************************************************* |
| 1037 | ** |
| 1038 | ** Function AVDT_DisconnectReq |
| 1039 | ** |
| 1040 | ** Description This function disconnect an AVDTP signaling connection |
| 1041 | ** to the peer device. When disconnected an |
| 1042 | ** AVDT_DISCONNECT_IND_EVT is sent to the application via its |
| 1043 | ** control callback function. |
| 1044 | ** |
| 1045 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 1046 | ** |
| 1047 | *******************************************************************************/ |
| 1048 | UINT16 AVDT_DisconnectReq(BD_ADDR bd_addr, tAVDT_CTRL_CBACK *p_cback) |
| 1049 | { |
| 1050 | tAVDT_CCB *p_ccb = NULL; |
| 1051 | UINT16 result = AVDT_SUCCESS; |
| 1052 | tAVDT_CCB_EVT evt; |
| 1053 | |
| 1054 | BTTRC_AVDT_API0(AVDT_TRACE_API_DISCONNECT_REQ); |
| 1055 | |
| 1056 | |
| 1057 | /* find channel control block for this bd addr; if none, error */ |
| 1058 | if ((p_ccb = avdt_ccb_by_bd(bd_addr)) == NULL) |
| 1059 | { |
| 1060 | result = AVDT_BAD_PARAMS; |
| 1061 | } |
| 1062 | |
| 1063 | if (result == AVDT_SUCCESS) |
| 1064 | { |
| 1065 | /* send event to ccb */ |
| 1066 | evt.disconnect.p_cback = p_cback; |
| 1067 | avdt_ccb_event(p_ccb, AVDT_CCB_API_DISCONNECT_REQ_EVT, &evt); |
| 1068 | } |
| 1069 | return result; |
| 1070 | } |
| 1071 | |
| 1072 | /******************************************************************************* |
| 1073 | ** |
| 1074 | ** Function AVDT_GetL2CapChannel |
| 1075 | ** |
| 1076 | ** Description Get the L2CAP CID used by the handle. |
| 1077 | ** |
| 1078 | ** Returns CID if successful, otherwise 0. |
| 1079 | ** |
| 1080 | *******************************************************************************/ |
| 1081 | UINT16 AVDT_GetL2CapChannel(UINT8 handle) |
| 1082 | { |
| 1083 | tAVDT_SCB *p_scb; |
| 1084 | tAVDT_CCB *p_ccb; |
| 1085 | UINT8 tcid; |
| 1086 | UINT16 lcid = 0; |
| 1087 | |
| 1088 | /* map handle to scb */ |
| 1089 | if (((p_scb = avdt_scb_by_hdl(handle)) != NULL) |
| 1090 | && ((p_ccb = p_scb->p_ccb) != NULL)) |
| 1091 | { |
| 1092 | /* get tcid from type, scb */ |
| 1093 | tcid = avdt_ad_type_to_tcid(AVDT_CHAN_MEDIA, p_scb); |
| 1094 | |
| 1095 | lcid = avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid; |
| 1096 | } |
| 1097 | |
| 1098 | BTTRC_AVDT_API1(AVDT_TRACE_API_GET_L2CAP_CHAN, BTTRC_PARAM_UINT16, lcid); |
| 1099 | |
| 1100 | return (lcid); |
| 1101 | } |
| 1102 | |
| 1103 | /******************************************************************************* |
| 1104 | ** |
| 1105 | ** Function AVDT_GetSignalChannel |
| 1106 | ** |
| 1107 | ** Description Get the L2CAP CID used by the signal channel of the given handle. |
| 1108 | ** |
| 1109 | ** Returns CID if successful, otherwise 0. |
| 1110 | ** |
| 1111 | *******************************************************************************/ |
| 1112 | UINT16 AVDT_GetSignalChannel(UINT8 handle, BD_ADDR bd_addr) |
| 1113 | { |
| 1114 | tAVDT_SCB *p_scb; |
| 1115 | tAVDT_CCB *p_ccb; |
| 1116 | UINT8 tcid = 0; /* tcid is always 0 for signal channel */ |
| 1117 | UINT16 lcid = 0; |
| 1118 | |
| 1119 | /* map handle to scb */ |
| 1120 | if (((p_scb = avdt_scb_by_hdl(handle)) != NULL) |
| 1121 | && ((p_ccb = p_scb->p_ccb) != NULL)) |
| 1122 | { |
| 1123 | lcid = avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid; |
| 1124 | } |
| 1125 | else if ((p_ccb = avdt_ccb_by_bd(bd_addr)) != NULL) |
| 1126 | { |
| 1127 | lcid = avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][tcid].lcid; |
| 1128 | } |
| 1129 | |
| 1130 | BTTRC_AVDT_API1(AVDT_TRACE_API_GET_SIGNAL_CHAN, BTTRC_PARAM_UINT16, lcid); |
| 1131 | |
| 1132 | return (lcid); |
| 1133 | } |
| 1134 | |
| 1135 | #if AVDT_MULTIPLEXING == TRUE |
| 1136 | /******************************************************************************* |
| 1137 | ** |
| 1138 | ** Function AVDT_WriteDataReq |
| 1139 | ** |
| 1140 | ** Description Send a media packet to the peer device. The stream must |
| 1141 | ** be started before this function is called. Also, this |
| 1142 | ** function can only be called if the stream is a SRC. |
| 1143 | ** |
| 1144 | ** When AVDTP has sent the media packet and is ready for the |
| 1145 | ** next packet, an AVDT_WRITE_CFM_EVT is sent to the |
| 1146 | ** application via the control callback. The application must |
| 1147 | ** wait for the AVDT_WRITE_CFM_EVT before it makes the next |
| 1148 | ** call to AVDT_WriteDataReq(). If the applications calls |
| 1149 | ** AVDT_WriteDataReq() before it receives the event the packet |
| 1150 | ** will not be sent. The application may make its first call |
| 1151 | ** to AVDT_WriteDataReq() after it receives an |
| 1152 | ** AVDT_START_CFM_EVT or AVDT_START_IND_EVT. |
| 1153 | ** |
| 1154 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 1155 | ** |
| 1156 | *******************************************************************************/ |
| 1157 | AVDT_API extern UINT16 AVDT_WriteDataReq(UINT8 handle, UINT8 *p_data, UINT32 data_len, |
| 1158 | UINT32 time_stamp, UINT8 m_pt, UINT8 marker) |
| 1159 | { |
| 1160 | |
| 1161 | tAVDT_SCB *p_scb; |
| 1162 | tAVDT_SCB_EVT evt; |
| 1163 | UINT16 result = AVDT_SUCCESS; |
| 1164 | |
| 1165 | BTTRC_AVDT_API1(AVDT_TRACE_API_WRITE_DATA_REQ, BTTRC_PARAM_UINT32, data_len); |
| 1166 | |
| 1167 | do |
| 1168 | { |
| 1169 | /* check length of media frame */ |
| 1170 | if(data_len > AVDT_MAX_MEDIA_SIZE) |
| 1171 | { |
| 1172 | result = AVDT_BAD_PARAMS; |
| 1173 | break; |
| 1174 | } |
| 1175 | /* map handle to scb */ |
| 1176 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 1177 | { |
| 1178 | result = AVDT_BAD_HANDLE; |
| 1179 | break; |
| 1180 | } |
| 1181 | AVDT_TRACE_WARNING1("mux_tsid_media:%d", p_scb->curr_cfg.mux_tsid_media); |
| 1182 | |
| 1183 | if (p_scb->p_pkt != NULL |
| 1184 | || p_scb->p_ccb == NULL |
| 1185 | || !GKI_queue_is_empty(&p_scb->frag_q) |
| 1186 | || p_scb->frag_off != 0 |
| 1187 | || p_scb->curr_cfg.mux_tsid_media == 0) |
| 1188 | { |
| 1189 | result = AVDT_ERR_BAD_STATE; |
| 1190 | AVDT_TRACE_WARNING4("p_scb->p_pkt=%x, p_scb->p_ccb=%x, IsQueueEmpty=%x, p_scb->frag_off=%x", |
| 1191 | p_scb->p_pkt, p_scb->p_ccb, GKI_queue_is_empty(&p_scb->frag_q), p_scb->frag_off); |
| 1192 | break; |
| 1193 | } |
| 1194 | evt.apiwrite.p_buf = 0; /* it will indicate using of fragments queue frag_q */ |
| 1195 | /* create queue of media fragments */ |
| 1196 | GKI_init_q (&evt.apiwrite.frag_q); |
| 1197 | |
| 1198 | /* compose fragments from media payload and put fragments into gueue */ |
| 1199 | avdt_scb_queue_frags(p_scb, &p_data, &data_len, &evt.apiwrite.frag_q); |
| 1200 | |
| 1201 | if(GKI_queue_is_empty(&evt.apiwrite.frag_q)) |
| 1202 | { |
| 1203 | AVDT_TRACE_WARNING0("AVDT_WriteDataReq out of GKI buffers"); |
| 1204 | result = AVDT_ERR_RESOURCE; |
| 1205 | break; |
| 1206 | } |
| 1207 | evt.apiwrite.data_len = data_len; |
| 1208 | evt.apiwrite.p_data = p_data; |
| 1209 | |
| 1210 | /* process the fragments queue */ |
| 1211 | evt.apiwrite.time_stamp = time_stamp; |
| 1212 | evt.apiwrite.m_pt = m_pt | (marker<<7); |
| 1213 | avdt_scb_event(p_scb, AVDT_SCB_API_WRITE_REQ_EVT, &evt); |
| 1214 | } while (0); |
| 1215 | |
| 1216 | #if (BT_USE_TRACES == TRUE) |
| 1217 | if(result != AVDT_SUCCESS) |
| 1218 | { |
| 1219 | AVDT_TRACE_WARNING1("*** AVDT_WriteDataReq failed result=%d",result); |
| 1220 | } |
| 1221 | #endif |
| 1222 | return result; |
| 1223 | } |
| 1224 | #endif |
| 1225 | |
| 1226 | #if AVDT_MULTIPLEXING == TRUE |
| 1227 | /******************************************************************************* |
| 1228 | ** |
| 1229 | ** Function AVDT_SetMediaBuf |
| 1230 | ** |
| 1231 | ** Description Assigns buffer for media packets or forbids using of assigned |
| 1232 | ** buffer if argument p_buf is NULL. This function can only |
| 1233 | ** be called if the stream is a SNK. |
| 1234 | ** |
| 1235 | ** AVDTP uses this buffer to reassemble fragmented media packets. |
| 1236 | ** When AVDTP receives a complete media packet, it calls the |
| 1237 | ** p_media_cback assigned by AVDT_CreateStream(). |
| 1238 | ** This function can be called during callback to assign a |
| 1239 | ** different buffer for next media packet or can leave the current |
| 1240 | ** buffer for next packet. |
| 1241 | ** |
| 1242 | ** Returns AVDT_SUCCESS if successful, otherwise error. |
| 1243 | ** |
| 1244 | *******************************************************************************/ |
| 1245 | AVDT_API extern UINT16 AVDT_SetMediaBuf(UINT8 handle, UINT8 *p_buf, UINT32 buf_len) |
| 1246 | { |
| 1247 | tAVDT_SCB *p_scb; |
| 1248 | UINT16 result = AVDT_SUCCESS; |
| 1249 | |
| 1250 | BTTRC_AVDT_API0(AVDT_TRACE_API_SET_MEDIABUF); |
| 1251 | |
| 1252 | /* map handle to scb */ |
| 1253 | if ((p_scb = avdt_scb_by_hdl(handle)) == NULL) |
| 1254 | { |
| 1255 | result = AVDT_BAD_HANDLE; |
| 1256 | } |
| 1257 | else |
| 1258 | { |
| 1259 | if(p_buf && p_scb->cs.p_media_cback == NULL) |
| 1260 | result = AVDT_NO_RESOURCES; |
| 1261 | else |
| 1262 | { |
| 1263 | p_scb->p_media_buf = p_buf; |
| 1264 | p_scb->media_buf_len = buf_len; |
| 1265 | } |
| 1266 | } |
| 1267 | |
| 1268 | return result; |
| 1269 | } |
| 1270 | #endif |
| 1271 | |
| 1272 | #if AVDT_REPORTING == TRUE |
| 1273 | /******************************************************************************* |
| 1274 | ** |
| 1275 | ** Function AVDT_SendReport |
| 1276 | ** |
| 1277 | ** Description |
| 1278 | ** |
| 1279 | ** |
| 1280 | ** |
| 1281 | ** Returns |
| 1282 | ** |
| 1283 | *******************************************************************************/ |
| 1284 | UINT16 AVDT_SendReport(UINT8 handle, AVDT_REPORT_TYPE type, |
| 1285 | tAVDT_REPORT_DATA *p_data) |
| 1286 | { |
| 1287 | tAVDT_SCB *p_scb; |
| 1288 | UINT16 result = AVDT_BAD_PARAMS; |
| 1289 | BT_HDR *p_pkt; |
| 1290 | tAVDT_TC_TBL *p_tbl; |
| 1291 | UINT8 *p, *plen, *pm1, *p_end; |
| 1292 | #if AVDT_MULTIPLEXING == TRUE |
Ganesh Ganapathi Batta | ead3cde | 2013-02-05 15:22:31 -0800 | [diff] [blame] | 1293 | UINT8 *p_al=NULL, u; |
The Android Open Source Project | 5738f83 | 2012-12-12 16:00:35 -0800 | [diff] [blame] | 1294 | #endif |
| 1295 | UINT32 ssrc; |
| 1296 | UINT16 len; |
| 1297 | |
| 1298 | BTTRC_AVDT_API0(AVDT_TRACE_API_SEND_REPORT); |
| 1299 | |
| 1300 | /* map handle to scb && verify parameters */ |
| 1301 | if (((p_scb = avdt_scb_by_hdl(handle)) != NULL) |
| 1302 | && (p_scb->p_ccb != NULL) |
| 1303 | && (((type == AVDT_RTCP_PT_SR) && (p_scb->cs.tsep == AVDT_TSEP_SRC)) || |
| 1304 | ((type == AVDT_RTCP_PT_RR) && (p_scb->cs.tsep == AVDT_TSEP_SNK)) || |
| 1305 | (type == AVDT_RTCP_PT_SDES)) ) |
| 1306 | { |
| 1307 | result = AVDT_NO_RESOURCES; |
| 1308 | |
| 1309 | /* build SR - assume fit in one packet */ |
| 1310 | p_tbl = avdt_ad_tc_tbl_by_type(AVDT_CHAN_REPORT, p_scb->p_ccb, p_scb); |
| 1311 | if((p_tbl->state == AVDT_AD_ST_OPEN) && |
| 1312 | (p_pkt = (BT_HDR *)GKI_getbuf(p_tbl->peer_mtu)) != NULL) |
| 1313 | { |
| 1314 | p_pkt->offset = L2CAP_MIN_OFFSET; |
| 1315 | p = (UINT8 *)(p_pkt + 1) + p_pkt->offset; |
| 1316 | #if AVDT_MULTIPLEXING == TRUE |
| 1317 | if(p_scb->curr_cfg.psc_mask & AVDT_PSC_MUX) |
| 1318 | { |
| 1319 | /* Adaptation Layer header later */ |
| 1320 | p_al = p; |
| 1321 | p += 2; |
| 1322 | } |
| 1323 | #endif |
| 1324 | pm1 = p; |
| 1325 | *p++ = AVDT_MEDIA_OCTET1 | 1; |
| 1326 | *p++ = type; |
| 1327 | /* save the location for length */ |
| 1328 | plen = p; |
| 1329 | p+= 2; |
| 1330 | ssrc = avdt_scb_gen_ssrc(p_scb); |
| 1331 | UINT32_TO_BE_STREAM(p, ssrc); |
| 1332 | |
| 1333 | switch(type) |
| 1334 | { |
| 1335 | case AVDT_RTCP_PT_SR: /* Sender Report */ |
| 1336 | *pm1 = AVDT_MEDIA_OCTET1; |
| 1337 | UINT32_TO_BE_STREAM(p, p_data->sr.ntp_sec); |
| 1338 | UINT32_TO_BE_STREAM(p, p_data->sr.ntp_frac); |
| 1339 | UINT32_TO_BE_STREAM(p, p_data->sr.rtp_time); |
| 1340 | UINT32_TO_BE_STREAM(p, p_data->sr.pkt_count); |
| 1341 | UINT32_TO_BE_STREAM(p, p_data->sr.octet_count); |
| 1342 | break; |
| 1343 | |
| 1344 | case AVDT_RTCP_PT_RR: /* Receiver Report */ |
| 1345 | *p++ = p_data->rr.frag_lost; |
| 1346 | AVDT_TRACE_API1("packet_lost: %d", p_data->rr.packet_lost); |
| 1347 | p_data->rr.packet_lost &= 0xFFFFFF; |
| 1348 | AVDT_TRACE_API1("packet_lost: %d", p_data->rr.packet_lost); |
| 1349 | UINT24_TO_BE_STREAM(p, p_data->rr.packet_lost); |
| 1350 | UINT32_TO_BE_STREAM(p, p_data->rr.seq_num_rcvd); |
| 1351 | UINT32_TO_BE_STREAM(p, p_data->rr.jitter); |
| 1352 | UINT32_TO_BE_STREAM(p, p_data->rr.lsr); |
| 1353 | UINT32_TO_BE_STREAM(p, p_data->rr.dlsr); |
| 1354 | break; |
| 1355 | |
| 1356 | case AVDT_RTCP_PT_SDES: /* Source Description */ |
| 1357 | *p++ = AVDT_RTCP_SDES_CNAME; |
| 1358 | len = strlen((char *)p_data->cname); |
| 1359 | if(len > AVDT_MAX_CNAME_SIZE) |
| 1360 | len = AVDT_MAX_CNAME_SIZE; |
| 1361 | *p++ = (UINT8)len; |
| 1362 | BCM_STRNCPY_S((char *)p, len+1, (char *)p_data->cname, len+1); |
| 1363 | p += len; |
| 1364 | break; |
| 1365 | } |
| 1366 | p_end = p; |
| 1367 | len = p - pm1 - 1; |
| 1368 | UINT16_TO_BE_STREAM(plen, len); |
| 1369 | |
| 1370 | #if AVDT_MULTIPLEXING == TRUE |
| 1371 | if(p_scb->curr_cfg.psc_mask & AVDT_PSC_MUX) |
| 1372 | { |
| 1373 | /* Adaptation Layer header */ |
| 1374 | p = p_al; |
| 1375 | len++; |
| 1376 | UINT16_TO_BE_STREAM(p_al, len ); |
| 1377 | /* TSID, no-fragment bit and coding of length(9-bit length field) */ |
| 1378 | u = *p; |
| 1379 | *p = (p_scb->curr_cfg.mux_tsid_report<<3) | AVDT_ALH_LCODE_9BITM0; |
| 1380 | if(u) |
| 1381 | *p |= AVDT_ALH_LCODE_9BITM1; |
| 1382 | } |
| 1383 | #endif |
| 1384 | |
| 1385 | /* set the actual payload length */ |
| 1386 | p_pkt->len = p_end - p; |
| 1387 | /* send the packet */ |
| 1388 | if(L2CAP_DW_FAILED != avdt_ad_write_req(AVDT_CHAN_REPORT, p_scb->p_ccb, p_scb, p_pkt)) |
| 1389 | result = AVDT_SUCCESS; |
| 1390 | } |
| 1391 | } |
| 1392 | |
| 1393 | return result; |
| 1394 | } |
| 1395 | #endif |
| 1396 | |
| 1397 | /****************************************************************************** |
| 1398 | ** |
| 1399 | ** Function AVDT_SetTraceLevel |
| 1400 | ** |
| 1401 | ** Description Sets the trace level for AVDT. If 0xff is passed, the |
| 1402 | ** current trace level is returned. |
| 1403 | ** |
| 1404 | ** Input Parameters: |
| 1405 | ** new_level: The level to set the AVDT tracing to: |
| 1406 | ** 0xff-returns the current setting. |
| 1407 | ** 0-turns off tracing. |
| 1408 | ** >= 1-Errors. |
| 1409 | ** >= 2-Warnings. |
| 1410 | ** >= 3-APIs. |
| 1411 | ** >= 4-Events. |
| 1412 | ** >= 5-Debug. |
| 1413 | ** |
| 1414 | ** Returns The new trace level or current trace level if |
| 1415 | ** the input parameter is 0xff. |
| 1416 | ** |
| 1417 | ******************************************************************************/ |
| 1418 | UINT8 AVDT_SetTraceLevel (UINT8 new_level) |
| 1419 | { |
| 1420 | if (new_level != 0xFF) |
| 1421 | avdt_cb.trace_level = new_level; |
| 1422 | |
| 1423 | return (avdt_cb.trace_level); |
| 1424 | } |
| 1425 | |