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 file contains interfaces which are internal to AVDTP. 22 * 23 ******************************************************************************/ 24#ifndef AVDT_INT_H 25#define AVDT_INT_H 26 27#include "osi/include/alarm.h" 28#include "osi/include/fixed_queue.h" 29#include "bt_common.h" 30#include "avdt_api.h" 31#include "avdtc_api.h" 32#include "avdt_defs.h" 33#include "l2c_api.h" 34#include "btm_api.h" 35 36#ifndef AVDT_DEBUG 37#define AVDT_DEBUG FALSE 38#endif 39 40/***************************************************************************** 41** constants 42*****************************************************************************/ 43 44/* channel types */ 45enum { 46 AVDT_CHAN_SIG, /* signaling channel */ 47 AVDT_CHAN_MEDIA, /* media channel */ 48#if AVDT_REPORTING == TRUE 49 AVDT_CHAN_REPORT, /* reporting channel */ 50#endif 51 AVDT_CHAN_NUM_TYPES 52}; 53 54/* protocol service capabilities of this AVDTP implementation */ 55/* for now multiplexing will be used only for fragmentation */ 56#if ((AVDT_MULTIPLEXING == TRUE) && (AVDT_REPORTING == TRUE)) 57#define AVDT_PSC (AVDT_PSC_TRANS | AVDT_PSC_MUX | AVDT_PSC_REPORT | AVDT_PSC_DELAY_RPT) 58#define AVDT_LEG_PSC (AVDT_PSC_TRANS | AVDT_PSC_MUX | AVDT_PSC_REPORT) 59#else /* AVDT_MULTIPLEXING && AVDT_REPORTING */ 60 61#if (AVDT_MULTIPLEXING == TRUE) 62#define AVDT_PSC (AVDT_PSC_TRANS | AVDT_PSC_MUX | AVDT_PSC_DELAY_RPT) 63#define AVDT_LEG_PSC (AVDT_PSC_TRANS | AVDT_PSC_MUX) 64#else /* AVDT_MULTIPLEXING */ 65 66#if (AVDT_REPORTING == TRUE) 67#define AVDT_PSC (AVDT_PSC_TRANS | AVDT_PSC_REPORT | AVDT_PSC_DELAY_RPT) 68#define AVDT_LEG_PSC (AVDT_PSC_TRANS | AVDT_PSC_REPORT) 69#else /* AVDT_REPORTING */ 70#define AVDT_PSC (AVDT_PSC_TRANS | AVDT_PSC_DELAY_RPT) 71#define AVDT_LEG_PSC (AVDT_PSC_TRANS) 72#endif /* AVDT_REPORTING */ 73 74#endif /* AVDT_MULTIPLEXING */ 75 76#endif /* AVDT_MULTIPLEXING && AVDT_REPORTING */ 77 78/* initiator/acceptor signaling roles */ 79#define AVDT_CLOSE_ACP 0 80#define AVDT_CLOSE_INT 1 81#define AVDT_OPEN_ACP 2 82#define AVDT_OPEN_INT 3 83 84/* states for avdt_scb_verify */ 85#define AVDT_VERIFY_OPEN 0 86#define AVDT_VERIFY_STREAMING 1 87#define AVDT_VERIFY_SUSPEND 2 88#define AVDT_VERIFY_START 3 89 90/* to distinguish CCB events from SCB events */ 91#define AVDT_CCB_MKR 0x80 92 93/* offset where AVDTP signaling message header starts in message */ 94#define AVDT_HDR_OFFSET (L2CAP_MIN_OFFSET + AVDT_NUM_SEPS) 95 96/* offset where AVDTP signaling message content starts; 97** use the size of a start header since it's the largest possible 98** layout of signaling message in a buffer is: 99** 100** | BT_HDR | SCB handles | L2CAP + HCI header | AVDTP header | data ... | 101** 102** Note that we "hide" the scb handles at the top of the message buffer. 103*/ 104#define AVDT_MSG_OFFSET (L2CAP_MIN_OFFSET + AVDT_NUM_SEPS + AVDT_LEN_TYPE_START) 105 106/* scb transport channel connect timeout value (in milliseconds) */ 107#define AVDT_SCB_TC_CONN_TIMEOUT_MS (10 * 1000) 108 109/* scb transport channel disconnect timeout value (in milliseconds) */ 110#define AVDT_SCB_TC_DISC_TIMEOUT_MS (10 * 1000) 111 112/* maximum number of command retransmissions */ 113#ifndef AVDT_RET_MAX 114#define AVDT_RET_MAX 1 115#endif 116 117 118/* ccb state machine states */ 119enum { 120 AVDT_CCB_IDLE_ST, 121 AVDT_CCB_OPENING_ST, 122 AVDT_CCB_OPEN_ST, 123 AVDT_CCB_CLOSING_ST 124}; 125 126/* state machine action enumeration list */ 127enum { 128 AVDT_CCB_CHAN_OPEN, 129 AVDT_CCB_CHAN_CLOSE, 130 AVDT_CCB_CHK_CLOSE, 131 AVDT_CCB_HDL_DISCOVER_CMD, 132 AVDT_CCB_HDL_DISCOVER_RSP, 133 AVDT_CCB_HDL_GETCAP_CMD, 134 AVDT_CCB_HDL_GETCAP_RSP, 135 AVDT_CCB_HDL_START_CMD, 136 AVDT_CCB_HDL_START_RSP, 137 AVDT_CCB_HDL_SUSPEND_CMD, 138 AVDT_CCB_HDL_SUSPEND_RSP, 139 AVDT_CCB_SND_DISCOVER_CMD, 140 AVDT_CCB_SND_DISCOVER_RSP, 141 AVDT_CCB_SND_GETCAP_CMD, 142 AVDT_CCB_SND_GETCAP_RSP, 143 AVDT_CCB_SND_START_CMD, 144 AVDT_CCB_SND_START_RSP, 145 AVDT_CCB_SND_SUSPEND_CMD, 146 AVDT_CCB_SND_SUSPEND_RSP, 147 AVDT_CCB_CLEAR_CMDS, 148 AVDT_CCB_CMD_FAIL, 149 AVDT_CCB_FREE_CMD, 150 AVDT_CCB_CONG_STATE, 151 AVDT_CCB_RET_CMD, 152 AVDT_CCB_SND_CMD, 153 AVDT_CCB_SND_MSG, 154 AVDT_CCB_SET_RECONN, 155 AVDT_CCB_CLR_RECONN, 156 AVDT_CCB_CHK_RECONN, 157 AVDT_CCB_CHK_TIMER, 158 AVDT_CCB_SET_CONN, 159 AVDT_CCB_SET_DISCONN, 160 AVDT_CCB_DO_DISCONN, 161 AVDT_CCB_LL_CLOSED, 162 AVDT_CCB_LL_OPENED, 163 AVDT_CCB_DEALLOC, 164 AVDT_CCB_NUM_ACTIONS 165}; 166 167#define AVDT_CCB_IGNORE AVDT_CCB_NUM_ACTIONS 168 169/* ccb state machine events */ 170enum { 171 AVDT_CCB_API_DISCOVER_REQ_EVT, 172 AVDT_CCB_API_GETCAP_REQ_EVT, 173 AVDT_CCB_API_START_REQ_EVT, 174 AVDT_CCB_API_SUSPEND_REQ_EVT, 175 AVDT_CCB_API_DISCOVER_RSP_EVT, 176 AVDT_CCB_API_GETCAP_RSP_EVT, 177 AVDT_CCB_API_START_RSP_EVT, 178 AVDT_CCB_API_SUSPEND_RSP_EVT, 179 AVDT_CCB_API_CONNECT_REQ_EVT, 180 AVDT_CCB_API_DISCONNECT_REQ_EVT, 181 AVDT_CCB_MSG_DISCOVER_CMD_EVT, 182 AVDT_CCB_MSG_GETCAP_CMD_EVT, 183 AVDT_CCB_MSG_START_CMD_EVT, 184 AVDT_CCB_MSG_SUSPEND_CMD_EVT, 185 AVDT_CCB_MSG_DISCOVER_RSP_EVT, 186 AVDT_CCB_MSG_GETCAP_RSP_EVT, 187 AVDT_CCB_MSG_START_RSP_EVT, 188 AVDT_CCB_MSG_SUSPEND_RSP_EVT, 189 AVDT_CCB_RCVRSP_EVT, 190 AVDT_CCB_SENDMSG_EVT, 191 AVDT_CCB_RET_TOUT_EVT, 192 AVDT_CCB_RSP_TOUT_EVT, 193 AVDT_CCB_IDLE_TOUT_EVT, 194 AVDT_CCB_UL_OPEN_EVT, 195 AVDT_CCB_UL_CLOSE_EVT, 196 AVDT_CCB_LL_OPEN_EVT, 197 AVDT_CCB_LL_CLOSE_EVT, 198 AVDT_CCB_LL_CONG_EVT 199}; 200 201 202/* scb state machine states; these state values are private to this module so 203** the scb state cannot be read or set by actions functions 204*/ 205enum { 206 AVDT_SCB_IDLE_ST, 207 AVDT_SCB_CONF_ST, 208 AVDT_SCB_OPENING_ST, 209 AVDT_SCB_OPEN_ST, 210 AVDT_SCB_STREAM_ST, 211 AVDT_SCB_CLOSING_ST 212}; 213 214/* state machine action enumeration list */ 215enum { 216 AVDT_SCB_HDL_ABORT_CMD, 217 AVDT_SCB_HDL_ABORT_RSP, 218 AVDT_SCB_HDL_CLOSE_CMD, 219 AVDT_SCB_HDL_CLOSE_RSP, 220 AVDT_SCB_HDL_GETCONFIG_CMD, 221 AVDT_SCB_HDL_GETCONFIG_RSP, 222 AVDT_SCB_HDL_OPEN_CMD, 223 AVDT_SCB_HDL_OPEN_REJ, 224 AVDT_SCB_HDL_OPEN_RSP, 225 AVDT_SCB_HDL_PKT, 226 AVDT_SCB_DROP_PKT, 227 AVDT_SCB_HDL_RECONFIG_CMD, 228 AVDT_SCB_HDL_RECONFIG_RSP, 229 AVDT_SCB_HDL_SECURITY_CMD, 230 AVDT_SCB_HDL_SECURITY_RSP, 231 AVDT_SCB_HDL_SETCONFIG_CMD, 232 AVDT_SCB_HDL_SETCONFIG_REJ, 233 AVDT_SCB_HDL_SETCONFIG_RSP, 234 AVDT_SCB_HDL_START_CMD, 235 AVDT_SCB_HDL_START_RSP, 236 AVDT_SCB_HDL_SUSPEND_CMD, 237 AVDT_SCB_HDL_SUSPEND_RSP, 238 AVDT_SCB_HDL_TC_CLOSE, 239#if AVDT_REPORTING == TRUE 240 AVDT_SCB_HDL_TC_CLOSE_STO, 241#endif 242 AVDT_SCB_HDL_TC_OPEN, 243#if AVDT_REPORTING == TRUE 244 AVDT_SCB_HDL_TC_OPEN_STO, 245#endif 246 AVDT_SCB_SND_DELAY_RPT_REQ, 247 AVDT_SCB_HDL_DELAY_RPT_CMD, 248 AVDT_SCB_HDL_DELAY_RPT_RSP, 249 AVDT_SCB_HDL_WRITE_REQ, 250 AVDT_SCB_SND_ABORT_REQ, 251 AVDT_SCB_SND_ABORT_RSP, 252 AVDT_SCB_SND_CLOSE_REQ, 253 AVDT_SCB_SND_STREAM_CLOSE, 254 AVDT_SCB_SND_CLOSE_RSP, 255 AVDT_SCB_SND_GETCONFIG_REQ, 256 AVDT_SCB_SND_GETCONFIG_RSP, 257 AVDT_SCB_SND_OPEN_REQ, 258 AVDT_SCB_SND_OPEN_RSP, 259 AVDT_SCB_SND_RECONFIG_REQ, 260 AVDT_SCB_SND_RECONFIG_RSP, 261 AVDT_SCB_SND_SECURITY_REQ, 262 AVDT_SCB_SND_SECURITY_RSP, 263 AVDT_SCB_SND_SETCONFIG_REQ, 264 AVDT_SCB_SND_SETCONFIG_REJ, 265 AVDT_SCB_SND_SETCONFIG_RSP, 266 AVDT_SCB_SND_TC_CLOSE, 267 AVDT_SCB_CB_ERR, 268 AVDT_SCB_CONG_STATE, 269 AVDT_SCB_REJ_STATE, 270 AVDT_SCB_REJ_IN_USE, 271 AVDT_SCB_REJ_NOT_IN_USE, 272 AVDT_SCB_SET_REMOVE, 273 AVDT_SCB_FREE_PKT, 274 AVDT_SCB_CLR_PKT, 275 AVDT_SCB_CHK_SND_PKT, 276 AVDT_SCB_TC_TIMER, 277 AVDT_SCB_CLR_VARS, 278 AVDT_SCB_DEALLOC, 279 AVDT_SCB_NUM_ACTIONS 280}; 281 282#define AVDT_SCB_IGNORE AVDT_SCB_NUM_ACTIONS 283 284/* scb state machine events */ 285enum { 286 AVDT_SCB_API_REMOVE_EVT, 287 AVDT_SCB_API_WRITE_REQ_EVT, 288 AVDT_SCB_API_GETCONFIG_REQ_EVT, 289 AVDT_SCB_API_DELAY_RPT_REQ_EVT, 290 AVDT_SCB_API_SETCONFIG_REQ_EVT, 291 AVDT_SCB_API_OPEN_REQ_EVT, 292 AVDT_SCB_API_CLOSE_REQ_EVT, 293 AVDT_SCB_API_RECONFIG_REQ_EVT, 294 AVDT_SCB_API_SECURITY_REQ_EVT, 295 AVDT_SCB_API_ABORT_REQ_EVT, 296 AVDT_SCB_API_GETCONFIG_RSP_EVT, 297 AVDT_SCB_API_SETCONFIG_RSP_EVT, 298 AVDT_SCB_API_SETCONFIG_REJ_EVT, 299 AVDT_SCB_API_OPEN_RSP_EVT, 300 AVDT_SCB_API_CLOSE_RSP_EVT, 301 AVDT_SCB_API_RECONFIG_RSP_EVT, 302 AVDT_SCB_API_SECURITY_RSP_EVT, 303 AVDT_SCB_API_ABORT_RSP_EVT, 304 AVDT_SCB_MSG_SETCONFIG_CMD_EVT, 305 AVDT_SCB_MSG_GETCONFIG_CMD_EVT, 306 AVDT_SCB_MSG_OPEN_CMD_EVT, 307 AVDT_SCB_MSG_START_CMD_EVT, 308 AVDT_SCB_MSG_SUSPEND_CMD_EVT, 309 AVDT_SCB_MSG_CLOSE_CMD_EVT, 310 AVDT_SCB_MSG_ABORT_CMD_EVT, 311 AVDT_SCB_MSG_RECONFIG_CMD_EVT, 312 AVDT_SCB_MSG_SECURITY_CMD_EVT, 313 AVDT_SCB_MSG_DELAY_RPT_CMD_EVT, 314 AVDT_SCB_MSG_DELAY_RPT_RSP_EVT, 315 AVDT_SCB_MSG_SETCONFIG_RSP_EVT, 316 AVDT_SCB_MSG_GETCONFIG_RSP_EVT, 317 AVDT_SCB_MSG_OPEN_RSP_EVT, 318 AVDT_SCB_MSG_START_RSP_EVT, 319 AVDT_SCB_MSG_SUSPEND_RSP_EVT, 320 AVDT_SCB_MSG_CLOSE_RSP_EVT, 321 AVDT_SCB_MSG_ABORT_RSP_EVT, 322 AVDT_SCB_MSG_RECONFIG_RSP_EVT, 323 AVDT_SCB_MSG_SECURITY_RSP_EVT, 324 AVDT_SCB_MSG_SETCONFIG_REJ_EVT, 325 AVDT_SCB_MSG_OPEN_REJ_EVT, 326 AVDT_SCB_MSG_START_REJ_EVT, 327 AVDT_SCB_MSG_SUSPEND_REJ_EVT, 328 AVDT_SCB_TC_TOUT_EVT, 329 AVDT_SCB_TC_OPEN_EVT, 330 AVDT_SCB_TC_CLOSE_EVT, 331 AVDT_SCB_TC_CONG_EVT, 332 AVDT_SCB_TC_DATA_EVT, 333 AVDT_SCB_CC_CLOSE_EVT 334}; 335 336/* adaption layer number of stream routing table entries */ 337#if AVDT_REPORTING == TRUE 338/* 2 channels(1 media, 1 report) for each SEP and one for signalling */ 339#define AVDT_NUM_RT_TBL ((AVDT_NUM_SEPS<<1) + 1) 340#else 341#define AVDT_NUM_RT_TBL (AVDT_NUM_SEPS + 1) 342#endif 343 344/* adaption layer number of transport channel table entries - moved to target.h 345#define AVDT_NUM_TC_TBL (AVDT_NUM_SEPS + AVDT_NUM_LINKS) */ 346 347/* "states" used in transport channel table */ 348#define AVDT_AD_ST_UNUSED 0 /* Unused - unallocated */ 349#define AVDT_AD_ST_IDLE 1 /* No connection */ 350#define AVDT_AD_ST_ACP 2 /* Waiting to accept a connection */ 351#define AVDT_AD_ST_INT 3 /* Initiating a connection */ 352#define AVDT_AD_ST_CONN 4 /* Waiting for connection confirm */ 353#define AVDT_AD_ST_CFG 5 /* Waiting for configuration complete */ 354#define AVDT_AD_ST_OPEN 6 /* Channel opened */ 355#define AVDT_AD_ST_SEC_INT 7 /* Security process as INT */ 356#define AVDT_AD_ST_SEC_ACP 8 /* Security process as ACP */ 357 358/* Configuration flags. tAVDT_TC_TBL.cfg_flags */ 359#define AVDT_L2C_CFG_IND_DONE (1<<0) 360#define AVDT_L2C_CFG_CFM_DONE (1<<1) 361#define AVDT_L2C_CFG_CONN_INT (1<<2) 362#define AVDT_L2C_CFG_CONN_ACP (1<<3) 363 364 365/* result code for avdt_ad_write_req() (L2CA_DataWrite()) */ 366#define AVDT_AD_FAILED L2CAP_DW_FAILED /* FALSE */ 367#define AVDT_AD_SUCCESS L2CAP_DW_SUCCESS /* TRUE */ 368#define AVDT_AD_CONGESTED L2CAP_DW_CONGESTED /* 2 */ 369 370/***************************************************************************** 371** data types 372*****************************************************************************/ 373 374/* msg union of all message parameter types */ 375typedef union { 376 tAVDT_EVT_HDR hdr; 377 tAVDT_EVT_HDR single; 378 tAVDT_SETCONFIG config_cmd; 379 tAVDT_CONFIG reconfig_cmd; 380 tAVDT_MULTI multi; 381 tAVDT_SECURITY security_cmd; 382 tAVDT_DISCOVER discover_rsp; 383 tAVDT_CONFIG svccap; 384 tAVDT_SECURITY security_rsp; 385 tAVDT_DELAY_RPT delay_rpt_cmd; 386} tAVDT_MSG; 387 388/* data type for AVDT_CCB_API_DISCOVER_REQ_EVT */ 389typedef struct { 390 tAVDT_CTRL_CBACK *p_cback; 391 tAVDT_SEP_INFO *p_sep_info; 392 UINT8 num_seps; 393} tAVDT_CCB_API_DISCOVER; 394 395/* data type for AVDT_CCB_API_GETCAP_REQ_EVT */ 396typedef struct { 397 tAVDT_EVT_HDR single; 398 tAVDT_CTRL_CBACK *p_cback; 399 tAVDT_CFG *p_cfg; 400} tAVDT_CCB_API_GETCAP; 401 402/* data type for AVDT_CCB_API_CONNECT_REQ_EVT */ 403typedef struct { 404 tAVDT_CTRL_CBACK *p_cback; 405 UINT8 sec_mask; 406} tAVDT_CCB_API_CONNECT; 407 408/* data type for AVDT_CCB_API_DISCONNECT_REQ_EVT */ 409typedef struct { 410 tAVDT_CTRL_CBACK *p_cback; 411} tAVDT_CCB_API_DISCONNECT; 412 413/* union associated with ccb state machine events */ 414typedef union { 415 tAVDT_CCB_API_DISCOVER discover; 416 tAVDT_CCB_API_GETCAP getcap; 417 tAVDT_CCB_API_CONNECT connect; 418 tAVDT_CCB_API_DISCONNECT disconnect; 419 tAVDT_MSG msg; 420 BOOLEAN llcong; 421 UINT8 err_code; 422} tAVDT_CCB_EVT; 423 424/* channel control block type */ 425typedef struct { 426 BD_ADDR peer_addr; /* BD address of peer */ 427 /* 428 * NOTE: idle_ccb_timer, ret_ccb_timer and rsp_ccb_timer are mutually 429 * exclusive - no more than one timer should be running at the same time. 430 */ 431 alarm_t *idle_ccb_timer; /* Idle CCB timer entry */ 432 alarm_t *ret_ccb_timer; /* Ret CCB timer entry */ 433 alarm_t *rsp_ccb_timer; /* Rsp CCB timer entry */ 434 fixed_queue_t *cmd_q; /* Queue for outgoing command messages */ 435 fixed_queue_t *rsp_q; /* Queue for outgoing response and reject messages */ 436 tAVDT_CTRL_CBACK *proc_cback; /* Procedure callback function */ 437 tAVDT_CTRL_CBACK *p_conn_cback; /* Connection/disconnection callback function */ 438 void *p_proc_data; /* Pointer to data storage for procedure */ 439 BT_HDR *p_curr_cmd; /* Current command being sent awaiting response */ 440 BT_HDR *p_curr_msg; /* Current message being sent */ 441 BT_HDR *p_rx_msg; /* Current message being received */ 442 BOOLEAN allocated; /* Whether ccb is allocated */ 443 UINT8 state; /* The CCB state machine state */ 444 BOOLEAN ll_opened; /* TRUE if LL is opened */ 445 BOOLEAN proc_busy; /* TRUE when a discover or get capabilities procedure in progress */ 446 UINT8 proc_param; /* Procedure parameter; either SEID for get capabilities or number of SEPS for discover */ 447 BOOLEAN cong; /* Whether signaling channel is congested */ 448 UINT8 label; /* Message header "label" (sequence number) */ 449 BOOLEAN reconn; /* If TRUE, reinitiate connection after transitioning from CLOSING to IDLE state */ 450 UINT8 ret_count; /* Command retransmission count */ 451} tAVDT_CCB; 452 453/* type for action functions */ 454typedef void (*tAVDT_CCB_ACTION)(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 455 456/* type for AVDT_SCB_API_WRITE_REQ_EVT */ 457typedef struct { 458 BT_HDR *p_buf; 459 UINT32 time_stamp; 460#if AVDT_MULTIPLEXING == TRUE 461 UINT8 *p_data; 462 UINT32 data_len; 463#endif 464 UINT8 m_pt; 465 tAVDT_DATA_OPT_MASK opt; 466} tAVDT_SCB_APIWRITE; 467 468/* type for AVDT_SCB_TC_CLOSE_EVT */ 469typedef struct { 470 UINT8 old_tc_state; /* channel state before closed */ 471 UINT8 tcid; /* TCID */ 472 UINT8 type; /* channel type */ 473} tAVDT_SCB_TC_CLOSE; 474 475/* type for scb event data */ 476typedef union { 477 tAVDT_MSG msg; 478 tAVDT_SCB_APIWRITE apiwrite; 479 tAVDT_DELAY_RPT apidelay; 480 tAVDT_OPEN open; 481 tAVDT_SCB_TC_CLOSE close; 482 BOOLEAN llcong; 483 BT_HDR *p_pkt; 484} tAVDT_SCB_EVT; 485 486/* stream control block type */ 487typedef struct { 488 tAVDT_CS cs; /* stream creation struct */ 489 tAVDT_CFG curr_cfg; /* current configuration */ 490 tAVDT_CFG req_cfg; /* requested configuration */ 491 alarm_t *transport_channel_timer; /* transport channel connect timer */ 492 BT_HDR *p_pkt; /* packet waiting to be sent */ 493 tAVDT_CCB *p_ccb; /* ccb associated with this scb */ 494 UINT16 media_seq; /* media packet sequence number */ 495 BOOLEAN allocated; /* whether scb is allocated or unused */ 496 BOOLEAN in_use; /* whether stream being used by peer */ 497 UINT8 role; /* initiator/acceptor role in current procedure */ 498 BOOLEAN remove; /* whether CB is marked for removal */ 499 UINT8 state; /* state machine state */ 500 UINT8 peer_seid; /* SEID of peer stream */ 501 UINT8 curr_evt; /* current event; set only by state machine */ 502 BOOLEAN cong; /* Whether media transport channel is congested */ 503 UINT8 close_code; /* Error code received in close response */ 504#if AVDT_MULTIPLEXING == TRUE 505 fixed_queue_t *frag_q; /* Queue for outgoing media fragments */ 506 UINT32 frag_off; /* length of already received media fragments */ 507 UINT32 frag_org_len; /* original length before fragmentation of receiving media packet */ 508 UINT8 *p_next_frag; /* next fragment to send */ 509 UINT8 *p_media_buf; /* buffer for media packet assigned by AVDT_SetMediaBuf */ 510 UINT32 media_buf_len; /* length of buffer for media packet assigned by AVDT_SetMediaBuf */ 511#endif 512} tAVDT_SCB; 513 514/* type for action functions */ 515typedef void (*tAVDT_SCB_ACTION)(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 516 517/* adaption layer type for transport channel table */ 518typedef struct { 519 UINT16 peer_mtu; /* L2CAP mtu of the peer device */ 520 UINT16 my_mtu; /* Our MTU for this channel */ 521 UINT16 my_flush_to; /* Our flush timeout for this channel */ 522 UINT16 lcid; 523 UINT8 tcid; /* transport channel id */ 524 UINT8 ccb_idx; /* channel control block associated with this tc */ 525 UINT8 state; /* transport channel state */ 526 UINT8 cfg_flags; /* L2CAP configuration flags */ 527 UINT8 id; 528} tAVDT_TC_TBL; 529 530/* adaption layer type for stream routing table */ 531typedef struct { 532 UINT16 lcid; /* L2CAP LCID of the associated transport channel */ 533 UINT8 scb_hdl; /* stream control block associated with this tc */ 534} tAVDT_RT_TBL; 535 536 537/* adaption layer control block */ 538typedef struct { 539 tAVDT_RT_TBL rt_tbl[AVDT_NUM_LINKS][AVDT_NUM_RT_TBL]; 540 tAVDT_TC_TBL tc_tbl[AVDT_NUM_TC_TBL]; 541 UINT8 lcid_tbl[MAX_L2CAP_CHANNELS]; /* map LCID to tc_tbl index */ 542} tAVDT_AD; 543 544/* Control block for AVDT */ 545typedef struct { 546 tAVDT_REG rcb; /* registration control block */ 547 tAVDT_CCB ccb[AVDT_NUM_LINKS]; /* channel control blocks */ 548 tAVDT_SCB scb[AVDT_NUM_SEPS]; /* stream control blocks */ 549 tAVDT_AD ad; /* adaption layer control block */ 550 tAVDTC_CTRL_CBACK *p_conf_cback; /* conformance callback function */ 551 tAVDT_CCB_ACTION *p_ccb_act; /* pointer to CCB action functions */ 552 tAVDT_SCB_ACTION *p_scb_act; /* pointer to SCB action functions */ 553 tAVDT_CTRL_CBACK *p_conn_cback; /* connection callback function */ 554 UINT8 trace_level; /* trace level */ 555} tAVDT_CB; 556 557 558/***************************************************************************** 559** function declarations 560*****************************************************************************/ 561 562/* CCB function declarations */ 563extern void avdt_ccb_init(void); 564extern void avdt_ccb_event(tAVDT_CCB *p_ccb, UINT8 event, tAVDT_CCB_EVT *p_data); 565extern tAVDT_CCB *avdt_ccb_by_bd(BD_ADDR bd_addr); 566extern tAVDT_CCB *avdt_ccb_alloc(BD_ADDR bd_addr); 567extern void avdt_ccb_dealloc(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 568extern UINT8 avdt_ccb_to_idx(tAVDT_CCB *p_ccb); 569extern tAVDT_CCB *avdt_ccb_by_idx(UINT8 idx); 570 571/* CCB action functions */ 572extern void avdt_ccb_chan_open(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 573extern void avdt_ccb_chan_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 574extern void avdt_ccb_chk_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 575extern void avdt_ccb_hdl_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 576extern void avdt_ccb_hdl_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 577extern void avdt_ccb_hdl_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 578extern void avdt_ccb_hdl_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 579extern void avdt_ccb_hdl_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 580extern void avdt_ccb_hdl_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 581extern void avdt_ccb_hdl_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 582extern void avdt_ccb_hdl_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 583extern void avdt_ccb_snd_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 584extern void avdt_ccb_snd_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 585extern void avdt_ccb_snd_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 586extern void avdt_ccb_snd_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 587extern void avdt_ccb_snd_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 588extern void avdt_ccb_snd_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 589extern void avdt_ccb_snd_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 590extern void avdt_ccb_snd_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 591extern void avdt_ccb_clear_cmds(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 592extern void avdt_ccb_cmd_fail(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 593extern void avdt_ccb_free_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 594extern void avdt_ccb_cong_state(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 595extern void avdt_ccb_ret_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 596extern void avdt_ccb_snd_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 597extern void avdt_ccb_snd_msg(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 598extern void avdt_ccb_set_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 599extern void avdt_ccb_clr_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 600extern void avdt_ccb_chk_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 601extern void avdt_ccb_chk_timer(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 602extern void avdt_ccb_set_conn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 603extern void avdt_ccb_set_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 604extern void avdt_ccb_do_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 605extern void avdt_ccb_ll_closed(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 606extern void avdt_ccb_ll_opened(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data); 607 608/* SCB function prototypes */ 609extern void avdt_scb_event(tAVDT_SCB *p_scb, UINT8 event, tAVDT_SCB_EVT *p_data); 610extern void avdt_scb_init(void); 611extern tAVDT_SCB *avdt_scb_alloc(tAVDT_CS *p_cs); 612extern void avdt_scb_dealloc(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 613extern UINT8 avdt_scb_to_hdl(tAVDT_SCB *p_scb); 614extern tAVDT_SCB *avdt_scb_by_hdl(UINT8 hdl); 615extern UINT8 avdt_scb_verify(tAVDT_CCB *p_ccb, UINT8 state, UINT8 *p_seid, UINT16 num_seid, UINT8 *p_err_code); 616extern void avdt_scb_peer_seid_list(tAVDT_MULTI *p_multi); 617extern UINT32 avdt_scb_gen_ssrc(tAVDT_SCB *p_scb); 618 619/* SCB action functions */ 620extern void avdt_scb_hdl_abort_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 621extern void avdt_scb_hdl_abort_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 622extern void avdt_scb_hdl_close_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 623extern void avdt_scb_hdl_close_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 624extern void avdt_scb_hdl_getconfig_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 625extern void avdt_scb_hdl_getconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 626extern void avdt_scb_hdl_open_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 627extern void avdt_scb_hdl_open_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 628extern void avdt_scb_hdl_open_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 629extern void avdt_scb_hdl_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 630extern void avdt_scb_drop_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 631extern void avdt_scb_hdl_reconfig_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 632extern void avdt_scb_hdl_reconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 633extern void avdt_scb_hdl_security_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 634extern void avdt_scb_hdl_security_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 635extern void avdt_scb_hdl_setconfig_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 636extern void avdt_scb_hdl_setconfig_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 637extern void avdt_scb_hdl_setconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 638extern void avdt_scb_hdl_start_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 639extern void avdt_scb_hdl_start_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 640extern void avdt_scb_hdl_suspend_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 641extern void avdt_scb_hdl_suspend_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 642extern void avdt_scb_snd_delay_rpt_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 643extern void avdt_scb_hdl_delay_rpt_cmd(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 644extern void avdt_scb_hdl_delay_rpt_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 645extern void avdt_scb_hdl_tc_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 646extern void avdt_scb_hdl_tc_open(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 647extern void avdt_scb_hdl_tc_close_sto(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 648extern void avdt_scb_hdl_tc_open_sto(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 649extern void avdt_scb_hdl_write_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 650extern void avdt_scb_snd_abort_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 651extern void avdt_scb_snd_abort_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 652extern void avdt_scb_snd_close_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 653extern void avdt_scb_snd_stream_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 654extern void avdt_scb_snd_close_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 655extern void avdt_scb_snd_getconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 656extern void avdt_scb_snd_getconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 657extern void avdt_scb_snd_open_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 658extern void avdt_scb_snd_open_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 659extern void avdt_scb_snd_reconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 660extern void avdt_scb_snd_reconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 661extern void avdt_scb_snd_security_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 662extern void avdt_scb_snd_security_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 663extern void avdt_scb_snd_setconfig_req(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 664extern void avdt_scb_snd_setconfig_rej(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 665extern void avdt_scb_snd_setconfig_rsp(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 666extern void avdt_scb_snd_tc_close(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 667extern void avdt_scb_cb_err(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 668extern void avdt_scb_cong_state(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 669extern void avdt_scb_rej_state(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 670extern void avdt_scb_rej_in_use(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 671extern void avdt_scb_rej_not_in_use(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 672extern void avdt_scb_set_remove(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 673extern void avdt_scb_free_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 674extern void avdt_scb_chk_snd_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 675extern void avdt_scb_clr_pkt(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 676extern void avdt_scb_transport_channel_timer(tAVDT_SCB *p_scb, 677 tAVDT_SCB_EVT *p_data); 678extern void avdt_scb_clr_vars(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data); 679extern void avdt_scb_queue_frags(tAVDT_SCB *p_scb, UINT8 **pp_data, UINT32 *p_data_len); 680 681/* msg function declarations */ 682extern BOOLEAN avdt_msg_send(tAVDT_CCB *p_ccb, BT_HDR *p_msg); 683extern void avdt_msg_send_cmd(tAVDT_CCB *p_ccb, void *p_scb, UINT8 sig_id, tAVDT_MSG *p_params); 684extern void avdt_msg_send_rsp(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params); 685extern void avdt_msg_send_rej(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params); 686extern void avdt_msg_send_grej(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params); 687extern void avdt_msg_ind(tAVDT_CCB *p_ccb, BT_HDR *p_buf); 688 689/* adaption layer function declarations */ 690extern void avdt_ad_init(void); 691extern UINT8 avdt_ad_type_to_tcid(UINT8 type, tAVDT_SCB *p_scb); 692extern tAVDT_TC_TBL *avdt_ad_tc_tbl_by_st(UINT8 type, tAVDT_CCB *p_ccb, UINT8 state); 693extern tAVDT_TC_TBL *avdt_ad_tc_tbl_by_lcid(UINT16 lcid); 694extern tAVDT_TC_TBL *avdt_ad_tc_tbl_alloc(tAVDT_CCB *p_ccb); 695extern UINT8 avdt_ad_tc_tbl_to_idx(tAVDT_TC_TBL *p_tbl); 696extern void avdt_ad_tc_close_ind(tAVDT_TC_TBL *p_tbl, UINT16 reason); 697extern void avdt_ad_tc_open_ind(tAVDT_TC_TBL *p_tbl); 698extern void avdt_ad_tc_cong_ind(tAVDT_TC_TBL *p_tbl, BOOLEAN is_congested); 699extern void avdt_ad_tc_data_ind(tAVDT_TC_TBL *p_tbl, BT_HDR *p_buf); 700extern tAVDT_TC_TBL *avdt_ad_tc_tbl_by_type(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb); 701extern UINT8 avdt_ad_write_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, BT_HDR *p_buf); 702extern void avdt_ad_open_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, UINT8 role); 703extern void avdt_ad_close_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb); 704 705extern void avdt_ccb_idle_ccb_timer_timeout(void *data); 706extern void avdt_ccb_ret_ccb_timer_timeout(void *data); 707extern void avdt_ccb_rsp_ccb_timer_timeout(void *data); 708extern void avdt_scb_transport_channel_timer_timeout(void *data); 709 710/***************************************************************************** 711** macros 712*****************************************************************************/ 713 714/* we store the scb and the label in the layer_specific field of the 715** current cmd 716*/ 717#define AVDT_BLD_LAYERSPEC(ls, msg, label) \ 718 ls = (((label) << 4) | (msg)) 719 720#define AVDT_LAYERSPEC_LABEL(ls) ((UINT8)((ls) >> 4)) 721 722#define AVDT_LAYERSPEC_MSG(ls) ((UINT8)((ls) & 0x000F)) 723 724/***************************************************************************** 725** global data 726*****************************************************************************/ 727#ifdef __cplusplus 728extern "C" 729{ 730#endif 731 732/****************************************************************************** 733** Main Control Block 734*******************************************************************************/ 735#if AVDT_DYNAMIC_MEMORY == FALSE 736extern tAVDT_CB avdt_cb; 737#else 738extern tAVDT_CB *avdt_cb_ptr; 739#define avdt_cb (*avdt_cb_ptr) 740#endif 741 742 743/* L2CAP callback registration structure */ 744extern const tL2CAP_APPL_INFO avdt_l2c_appl; 745 746/* reject message event lookup table */ 747extern const UINT8 avdt_msg_rej_2_evt[]; 748#ifdef __cplusplus 749} 750#endif 751 752#endif /* AVDT_INT_H */ 753