1 /****************************************************************************** 2 * 3 * Copyright 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 the stream control block and functions which 22 * operate on the stream control block. 23 * 24 ******************************************************************************/ 25 26 #include <string.h> 27 #include "avdt_api.h" 28 #include "avdt_int.h" 29 #include "avdtc_api.h" 30 #include "bt_common.h" 31 #include "bt_target.h" 32 #include "bt_types.h" 33 #include "bt_utils.h" 34 #include "btu.h" 35 #include "osi/include/osi.h" 36 37 /***************************************************************************** 38 * state machine constants and types 39 ****************************************************************************/ 40 #if (AVDT_DEBUG == TRUE) 41 42 /* verbose state strings for trace */ 43 const char* const avdt_scb_st_str[] = {"SCB_IDLE_ST", "SCB_CONF_ST", 44 "SCB_OPENING_ST", "SCB_OPEN_ST", 45 "SCB_STREAM_ST", "SCB_CLOSING_ST"}; 46 47 /* verbose event strings for trace */ 48 const char* const avdt_scb_evt_str[] = { 49 "API_REMOVE_EVT", "API_WRITE_REQ_EVT", "API_GETCONFIG_REQ_EVT", 50 "API_DELAY_RPT_REQ", "API_SETCONFIG_REQ_EVT", "API_OPEN_REQ_EVT", 51 "API_CLOSE_REQ_EVT", "API_RECONFIG_REQ_EVT", "API_SECURITY_REQ_EVT", 52 "API_ABORT_REQ_EVT", "API_GETCONFIG_RSP_EVT", "API_SETCONFIG_RSP_EVT", 53 "API_SETCONFIG_REJ_EVT", "API_OPEN_RSP_EVT", "API_CLOSE_RSP_EVT", 54 "API_RECONFIG_RSP_EVT", "API_SECURITY_RSP_EVT", "API_ABORT_RSP_EVT", 55 "MSG_SETCONFIG_CMD_EVT", "MSG_GETCONFIG_CMD_EVT", "MSG_OPEN_CMD_EVT", 56 "MSG_START_CMD_EVT", "MSG_SUSPEND_CMD_EVT", "MSG_CLOSE_CMD_EVT", 57 "MSG_ABORT_CMD_EVT", "MSG_RECONFIG_CMD_EVT", "MSG_SECURITY_CMD_EVT", 58 "MSG_DELAY_RPT_CMD_EVT", "MSG_DELAY_RPT_RSP_EVT", "MSG_SETCONFIG_RSP_EVT", 59 "MSG_GETCONFIG_RSP_EVT", "MSG_OPEN_RSP_EVT", "MSG_START_RSP_EVT", 60 "MSG_SUSPEND_RSP_EVT", "MSG_CLOSE_RSP_EVT", "MSG_ABORT_RSP_EVT", 61 "MSG_RECONFIG_RSP_EVT", "MSG_SECURITY_RSP_EVT", "MSG_SETCONFIG_REJ_EVT", 62 "MSG_OPEN_REJ_EVT", "MSG_START_REJ_EVT", "MSG_SUSPEND_REJ_EVT", 63 "TC_TOUT_EVT", "TC_OPEN_EVT", "TC_CLOSE_EVT", 64 "TC_CONG_EVT", "TC_DATA_EVT", "CC_CLOSE_EVT"}; 65 66 #endif 67 68 /* action function list */ 69 const tAVDT_SCB_ACTION avdt_scb_action[] = {avdt_scb_hdl_abort_cmd, 70 avdt_scb_hdl_abort_rsp, 71 avdt_scb_hdl_close_cmd, 72 avdt_scb_hdl_close_rsp, 73 avdt_scb_hdl_getconfig_cmd, 74 avdt_scb_hdl_getconfig_rsp, 75 avdt_scb_hdl_open_cmd, 76 avdt_scb_hdl_open_rej, 77 avdt_scb_hdl_open_rsp, 78 avdt_scb_hdl_pkt, 79 avdt_scb_drop_pkt, 80 avdt_scb_hdl_reconfig_cmd, 81 avdt_scb_hdl_reconfig_rsp, 82 avdt_scb_hdl_security_cmd, 83 avdt_scb_hdl_security_rsp, 84 avdt_scb_hdl_setconfig_cmd, 85 avdt_scb_hdl_setconfig_rej, 86 avdt_scb_hdl_setconfig_rsp, 87 avdt_scb_hdl_start_cmd, 88 avdt_scb_hdl_start_rsp, 89 avdt_scb_hdl_suspend_cmd, 90 avdt_scb_hdl_suspend_rsp, 91 avdt_scb_hdl_tc_close, 92 avdt_scb_hdl_tc_close_sto, 93 avdt_scb_hdl_tc_open, 94 avdt_scb_hdl_tc_open_sto, 95 avdt_scb_snd_delay_rpt_req, 96 avdt_scb_hdl_delay_rpt_cmd, 97 avdt_scb_hdl_delay_rpt_rsp, 98 avdt_scb_hdl_write_req, 99 avdt_scb_snd_abort_req, 100 avdt_scb_snd_abort_rsp, 101 avdt_scb_snd_close_req, 102 avdt_scb_snd_stream_close, 103 avdt_scb_snd_close_rsp, 104 avdt_scb_snd_getconfig_req, 105 avdt_scb_snd_getconfig_rsp, 106 avdt_scb_snd_open_req, 107 avdt_scb_snd_open_rsp, 108 avdt_scb_snd_reconfig_req, 109 avdt_scb_snd_reconfig_rsp, 110 avdt_scb_snd_security_req, 111 avdt_scb_snd_security_rsp, 112 avdt_scb_snd_setconfig_req, 113 avdt_scb_snd_setconfig_rej, 114 avdt_scb_snd_setconfig_rsp, 115 avdt_scb_snd_tc_close, 116 avdt_scb_cb_err, 117 avdt_scb_cong_state, 118 avdt_scb_rej_state, 119 avdt_scb_rej_in_use, 120 avdt_scb_rej_not_in_use, 121 avdt_scb_set_remove, 122 avdt_scb_free_pkt, 123 avdt_scb_clr_pkt, 124 avdt_scb_chk_snd_pkt, 125 avdt_scb_transport_channel_timer, 126 avdt_scb_clr_vars, 127 avdt_scb_dealloc}; 128 129 /* state table information */ 130 #define AVDT_SCB_ACTIONS 2 /* number of actions */ 131 #define AVDT_SCB_NEXT_STATE 2 /* position of next state */ 132 #define AVDT_SCB_NUM_COLS 3 /* number of columns in state tables */ 133 134 /* state table for idle state */ 135 const uint8_t avdt_scb_st_idle[][AVDT_SCB_NUM_COLS] = { 136 /* Event */ 137 /* Action 1 Action 2 Next state */ 138 /* API_REMOVE_EVT */ 139 {AVDT_SCB_DEALLOC, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 140 /* API_WRITE_REQ_EVT */ 141 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 142 /* API_GETCONFIG_REQ_EVT */ 143 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 144 /* API_DELAY_RPT_REQ_EVT */ 145 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 146 /* API_SETCONFIG_REQ_EVT */ 147 {AVDT_SCB_SND_SETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 148 /* API_OPEN_REQ_EVT */ 149 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 150 /* API_CLOSE_REQ_EVT */ 151 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 152 /* API_RECONFIG_REQ_EVT */ 153 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 154 /* API_SECURITY_REQ_EVT */ 155 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 156 /* API_ABORT_REQ_EVT */ 157 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 158 /* API_GETCONFIG_RSP_EVT */ 159 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 160 /* API_SETCONFIG_RSP_EVT */ 161 {AVDT_SCB_SND_SETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 162 /* API_SETCONFIG_REJ_EVT */ 163 {AVDT_SCB_SND_SETCONFIG_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 164 /* API_OPEN_RSP_EVT */ 165 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 166 /* API_CLOSE_RSP_EVT */ 167 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 168 /* API_RECONFIG_RSP_EVT */ 169 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 170 /* API_SECURITY_RSP_EVT */ 171 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 172 /* API_ABORT_RSP_EVT */ 173 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 174 /* MSG_SETCONFIG_CMD_EVT */ 175 {AVDT_SCB_HDL_SETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 176 /* MSG_GETCONFIG_CMD_EVT */ 177 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 178 /* MSG_OPEN_CMD_EVT */ 179 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 180 /* MSG_START_CMD_EVT */ 181 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 182 /* MSG_SUSPEND_CMD_EVT */ 183 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 184 /* MSG_CLOSE_CMD_EVT */ 185 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 186 /* MSG_ABORT_CMD_EVT */ 187 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 188 /* MSG_RECONFIG_CMD_EVT */ 189 {AVDT_SCB_REJ_NOT_IN_USE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 190 /* MSG_SECURITY_CMD_EVT */ 191 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 192 /* MSG_DELAY_RPT_CMD_EVT */ 193 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 194 /* MSG_DELAY_RPT_RSP_EVT */ 195 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 196 /* MSG_SETCONFIG_RSP_EVT */ 197 {AVDT_SCB_HDL_SETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 198 /* MSG_GETCONFIG_RSP_EVT */ 199 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 200 /* MSG_OPEN_RSP_EVT */ 201 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 202 /* MSG_START_RSP_EVT */ 203 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 204 /* MSG_SUSPEND_RSP_EVT */ 205 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 206 /* MSG_CLOSE_RSP_EVT */ 207 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 208 /* MSG_ABORT_RSP_EVT */ 209 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 210 /* MSG_RECONFIG_RSP_EVT */ 211 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 212 /* MSG_SECURITY_RSP_EVT */ 213 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 214 /* MSG_SETCONFIG_REJ_EVT */ 215 {AVDT_SCB_HDL_SETCONFIG_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 216 /* MSG_OPEN_REJ_EVT */ 217 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 218 /* MSG_START_REJ_EVT */ 219 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 220 /* MSG_SUSPEND_REJ_EVT */ 221 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 222 /* TC_TOUT_EVT */ 223 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 224 /* TC_OPEN_EVT */ 225 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 226 /* TC_CLOSE_EVT */ 227 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 228 /* TC_CONG_EVT */ 229 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 230 /* TC_DATA_EVT */ 231 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 232 /* CC_CLOSE_EVT */ 233 {AVDT_SCB_CLR_VARS, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}}; 234 235 /* state table for configured state */ 236 const uint8_t avdt_scb_st_conf[][AVDT_SCB_NUM_COLS] = { 237 /* Event */ 238 /* Action 1 Action 2 Next state */ 239 /* API_REMOVE_EVT */ 240 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CONF_ST}, 241 /* API_WRITE_REQ_EVT */ 242 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 243 /* API_GETCONFIG_REQ_EVT */ 244 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 245 /* API_DELAY_RPT_REQ_EVT */ 246 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 247 /* API_SETCONFIG_REQ_EVT */ 248 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 249 /* API_OPEN_REQ_EVT */ 250 {AVDT_SCB_SND_OPEN_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 251 /* API_CLOSE_REQ_EVT */ 252 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 253 /* API_RECONFIG_REQ_EVT */ 254 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 255 /* API_SECURITY_REQ_EVT */ 256 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 257 /* API_ABORT_REQ_EVT */ 258 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 259 /* API_GETCONFIG_RSP_EVT */ 260 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 261 /* API_SETCONFIG_RSP_EVT */ 262 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 263 /* API_SETCONFIG_REJ_EVT */ 264 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 265 /* API_OPEN_RSP_EVT */ 266 {AVDT_SCB_SND_OPEN_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 267 /* API_CLOSE_RSP_EVT */ 268 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 269 /* API_RECONFIG_RSP_EVT */ 270 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 271 /* API_SECURITY_RSP_EVT */ 272 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 273 /* API_ABORT_RSP_EVT */ 274 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IDLE_ST}, 275 /* MSG_SETCONFIG_CMD_EVT */ 276 {AVDT_SCB_REJ_IN_USE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 277 /* MSG_GETCONFIG_CMD_EVT */ 278 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 279 /* MSG_OPEN_CMD_EVT */ 280 {AVDT_SCB_HDL_OPEN_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 281 /* MSG_START_CMD_EVT */ 282 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 283 /* MSG_SUSPEND_CMD_EVT */ 284 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 285 /* MSG_CLOSE_CMD_EVT */ 286 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 287 /* MSG_ABORT_CMD_EVT */ 288 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 289 /* MSG_RECONFIG_CMD_EVT */ 290 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 291 /* MSG_SECURITY_CMD_EVT */ 292 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 293 /* MSG_DELAY_RPT_CMD_EVT */ 294 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 295 /* MSG_DELAY_RPT_RSP_EVT */ 296 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 297 /* MSG_SETCONFIG_RSP_EVT */ 298 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 299 /* MSG_GETCONFIG_RSP_EVT */ 300 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 301 /* MSG_OPEN_RSP_EVT */ 302 {AVDT_SCB_HDL_OPEN_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 303 /* MSG_START_RSP_EVT */ 304 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 305 /* MSG_SUSPEND_RSP_EVT */ 306 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 307 /* MSG_CLOSE_RSP_EVT */ 308 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 309 /* MSG_ABORT_RSP_EVT */ 310 {AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IDLE_ST}, 311 /* MSG_RECONFIG_RSP_EVT */ 312 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 313 /* MSG_SECURITY_RSP_EVT */ 314 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 315 /* MSG_SETCONFIG_REJ_EVT */ 316 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 317 /* MSG_OPEN_REJ_EVT */ 318 {AVDT_SCB_HDL_OPEN_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 319 /* MSG_START_REJ_EVT */ 320 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 321 /* MSG_SUSPEND_REJ_EVT */ 322 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 323 /* TC_TOUT_EVT */ 324 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 325 /* TC_OPEN_EVT */ 326 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 327 /* TC_CLOSE_EVT */ 328 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 329 /* TC_CONG_EVT */ 330 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 331 /* TC_DATA_EVT */ 332 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST}, 333 /* CC_CLOSE_EVT */ 334 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}}; 335 336 /* state table for opening state */ 337 const uint8_t avdt_scb_st_opening[][AVDT_SCB_NUM_COLS] = { 338 /* Event */ 339 /* Action 1 Action 2 Next state */ 340 /* API_REMOVE_EVT */ 341 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST}, 342 /* API_WRITE_REQ_EVT */ 343 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 344 /* API_GETCONFIG_REQ_EVT */ 345 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 346 /* API_DELAY_RPT_REQ_EVT */ 347 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 348 /* API_SETCONFIG_REQ_EVT */ 349 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 350 /* API_OPEN_REQ_EVT */ 351 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 352 /* API_CLOSE_REQ_EVT */ 353 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 354 /* API_RECONFIG_REQ_EVT */ 355 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 356 /* API_SECURITY_REQ_EVT */ 357 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 358 /* API_ABORT_REQ_EVT */ 359 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 360 /* API_GETCONFIG_RSP_EVT */ 361 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 362 /* API_SETCONFIG_RSP_EVT */ 363 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 364 /* API_SETCONFIG_REJ_EVT */ 365 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 366 /* API_OPEN_RSP_EVT */ 367 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 368 /* API_CLOSE_RSP_EVT */ 369 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_CLOSING_ST}, 370 /* API_RECONFIG_RSP_EVT */ 371 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 372 /* API_SECURITY_RSP_EVT */ 373 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 374 /* API_ABORT_RSP_EVT */ 375 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_CLOSING_ST}, 376 /* MSG_SETCONFIG_CMD_EVT */ 377 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 378 /* MSG_GETCONFIG_CMD_EVT */ 379 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 380 /* MSG_OPEN_CMD_EVT */ 381 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 382 /* MSG_START_CMD_EVT */ 383 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 384 /* MSG_SUSPEND_CMD_EVT */ 385 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 386 /* MSG_CLOSE_CMD_EVT */ 387 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 388 /* MSG_ABORT_CMD_EVT */ 389 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 390 /* MSG_RECONFIG_CMD_EVT */ 391 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 392 /* MSG_SECURITY_CMD_EVT */ 393 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 394 /* MSG_DELAY_RPT_CMD_EVT */ 395 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 396 /* MSG_DELAY_RPT_RSP_EVT */ 397 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 398 /* MSG_SETCONFIG_RSP_EVT */ 399 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 400 /* MSG_GETCONFIG_RSP_EVT */ 401 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 402 /* MSG_OPEN_RSP_EVT */ 403 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 404 /* MSG_START_RSP_EVT */ 405 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 406 /* MSG_SUSPEND_RSP_EVT */ 407 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 408 /* MSG_CLOSE_RSP_EVT */ 409 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 410 /* MSG_ABORT_RSP_EVT */ 411 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_CLOSING_ST}, 412 /* MSG_RECONFIG_RSP_EVT */ 413 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 414 /* MSG_SECURITY_RSP_EVT */ 415 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 416 /* MSG_SETCONFIG_REJ_EVT */ 417 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 418 /* MSG_OPEN_REJ_EVT */ 419 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 420 /* MSG_START_REJ_EVT */ 421 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 422 /* MSG_SUSPEND_REJ_EVT */ 423 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 424 /* TC_TOUT_EVT */ 425 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 426 /* TC_OPEN_EVT */ 427 {AVDT_SCB_HDL_TC_OPEN, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 428 /* TC_CLOSE_EVT */ 429 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 430 /* TC_CONG_EVT */ 431 {AVDT_SCB_CONG_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 432 /* TC_DATA_EVT */ 433 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST}, 434 /* CC_CLOSE_EVT */ 435 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}}; 436 437 /* state table for open state */ 438 const uint8_t avdt_scb_st_open[][AVDT_SCB_NUM_COLS] = { 439 /* Event */ 440 /* Action 1 Action 2 Next state */ 441 /* API_REMOVE_EVT */ 442 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST}, 443 /* API_WRITE_REQ_EVT */ 444 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 445 /* API_GETCONFIG_REQ_EVT */ 446 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 447 /* API_DELAY_RPT_REQ_EVT */ 448 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 449 /* API_SETCONFIG_REQ_EVT */ 450 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 451 /* API_OPEN_REQ_EVT */ 452 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 453 /* API_CLOSE_REQ_EVT */ 454 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 455 /* API_RECONFIG_REQ_EVT */ 456 {AVDT_SCB_SND_RECONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 457 /* API_SECURITY_REQ_EVT */ 458 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 459 /* API_ABORT_REQ_EVT */ 460 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 461 /* API_GETCONFIG_RSP_EVT */ 462 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 463 /* API_SETCONFIG_RSP_EVT */ 464 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 465 /* API_SETCONFIG_REJ_EVT */ 466 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 467 /* API_OPEN_RSP_EVT */ 468 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 469 /* API_CLOSE_RSP_EVT */ 470 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST}, 471 /* API_RECONFIG_RSP_EVT */ 472 {AVDT_SCB_SND_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 473 /* API_SECURITY_RSP_EVT */ 474 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 475 /* API_ABORT_RSP_EVT */ 476 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST}, 477 /* MSG_SETCONFIG_CMD_EVT */ 478 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 479 /* MSG_GETCONFIG_CMD_EVT */ 480 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 481 /* MSG_OPEN_CMD_EVT */ 482 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 483 /* MSG_START_CMD_EVT */ 484 {AVDT_SCB_HDL_START_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 485 /* MSG_SUSPEND_CMD_EVT */ 486 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 487 /* MSG_CLOSE_CMD_EVT */ 488 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 489 /* MSG_ABORT_CMD_EVT */ 490 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 491 /* MSG_RECONFIG_CMD_EVT */ 492 {AVDT_SCB_HDL_RECONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 493 /* MSG_SECURITY_CMD_EVT */ 494 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 495 /* MSG_DELAY_RPT_CMD_EVT */ 496 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 497 /* MSG_DELAY_RPT_RSP_EVT */ 498 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 499 /* MSG_SETCONFIG_RSP_EVT */ 500 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 501 /* MSG_GETCONFIG_RSP_EVT */ 502 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 503 /* MSG_OPEN_RSP_EVT */ 504 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 505 /* MSG_START_RSP_EVT */ 506 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 507 /* MSG_SUSPEND_RSP_EVT */ 508 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 509 /* MSG_CLOSE_RSP_EVT */ 510 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 511 /* MSG_ABORT_RSP_EVT */ 512 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 513 /* MSG_RECONFIG_RSP_EVT */ 514 {AVDT_SCB_HDL_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 515 /* MSG_SECURITY_RSP_EVT */ 516 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 517 /* MSG_SETCONFIG_REJ_EVT */ 518 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 519 /* MSG_OPEN_REJ_EVT */ 520 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 521 /* MSG_START_REJ_EVT */ 522 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 523 /* MSG_SUSPEND_REJ_EVT */ 524 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 525 /* TC_TOUT_EVT */ 526 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 527 /* TC_OPEN_EVT */ 528 {AVDT_SCB_HDL_TC_OPEN_STO, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 529 /* TC_CLOSE_EVT */ 530 {AVDT_SCB_HDL_TC_CLOSE_STO, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 531 /* TC_CONG_EVT */ 532 {AVDT_SCB_CONG_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 533 /* TC_DATA_EVT */ 534 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST}, 535 /* CC_CLOSE_EVT */ 536 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}}; 537 538 /* state table for streaming state */ 539 const uint8_t avdt_scb_st_stream[][AVDT_SCB_NUM_COLS] = { 540 /* Event */ 541 /* Action 1 Action 2 Next state */ 542 /* API_REMOVE_EVT */ 543 {AVDT_SCB_SND_STREAM_CLOSE, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST}, 544 /* API_WRITE_REQ_EVT */ 545 {AVDT_SCB_HDL_WRITE_REQ, AVDT_SCB_CHK_SND_PKT, AVDT_SCB_STREAM_ST}, 546 /* API_GETCONFIG_REQ_EVT */ 547 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 548 /* API_DELAY_RPT_REQ_EVT */ 549 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 550 /* API_SETCONFIG_REQ_EVT */ 551 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 552 /* API_OPEN_REQ_EVT */ 553 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 554 /* API_CLOSE_REQ_EVT */ 555 {AVDT_SCB_SND_STREAM_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 556 /* API_RECONFIG_REQ_EVT */ 557 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 558 /* API_SECURITY_REQ_EVT */ 559 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 560 /* API_ABORT_REQ_EVT */ 561 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_CLR_PKT, AVDT_SCB_CLOSING_ST}, 562 /* API_GETCONFIG_RSP_EVT */ 563 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 564 /* API_SETCONFIG_RSP_EVT */ 565 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 566 /* API_SETCONFIG_REJ_EVT */ 567 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 568 /* API_OPEN_RSP_EVT */ 569 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 570 /* API_CLOSE_RSP_EVT */ 571 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST}, 572 /* API_RECONFIG_RSP_EVT */ 573 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 574 /* API_SECURITY_RSP_EVT */ 575 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 576 /* API_ABORT_RSP_EVT */ 577 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST}, 578 /* MSG_SETCONFIG_CMD_EVT */ 579 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 580 /* MSG_GETCONFIG_CMD_EVT */ 581 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 582 /* MSG_OPEN_CMD_EVT */ 583 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 584 /* MSG_START_CMD_EVT */ 585 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 586 /* MSG_SUSPEND_CMD_EVT */ 587 {AVDT_SCB_HDL_SUSPEND_CMD, AVDT_SCB_CLR_PKT, AVDT_SCB_OPEN_ST}, 588 /* MSG_CLOSE_CMD_EVT */ 589 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 590 /* MSG_ABORT_CMD_EVT */ 591 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_CLR_PKT, AVDT_SCB_STREAM_ST}, 592 /* MSG_RECONFIG_CMD_EVT */ 593 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 594 /* MSG_SECURITY_CMD_EVT */ 595 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 596 /* MSG_DELAY_RPT_CMD_EVT */ 597 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 598 /* MSG_DELAY_RPT_RSP_EVT */ 599 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 600 /* MSG_SETCONFIG_RSP_EVT */ 601 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 602 /* MSG_GETCONFIG_RSP_EVT */ 603 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 604 /* MSG_OPEN_RSP_EVT */ 605 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 606 /* MSG_START_RSP_EVT */ 607 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 608 /* MSG_SUSPEND_RSP_EVT */ 609 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_CLR_PKT, AVDT_SCB_OPEN_ST}, 610 /* MSG_CLOSE_RSP_EVT */ 611 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 612 /* MSG_ABORT_RSP_EVT */ 613 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 614 /* MSG_RECONFIG_RSP_EVT */ 615 {AVDT_SCB_HDL_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 616 /* MSG_SECURITY_RSP_EVT */ 617 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 618 /* MSG_SETCONFIG_REJ_EVT */ 619 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 620 /* MSG_OPEN_REJ_EVT */ 621 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 622 /* MSG_START_REJ_EVT */ 623 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 624 /* MSG_SUSPEND_REJ_EVT */ 625 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 626 /* TC_TOUT_EVT */ 627 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 628 /* TC_OPEN_EVT */ 629 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 630 /* TC_CLOSE_EVT */ 631 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 632 /* TC_CONG_EVT */ 633 {AVDT_SCB_CONG_STATE, AVDT_SCB_CHK_SND_PKT, AVDT_SCB_STREAM_ST}, 634 /* TC_DATA_EVT */ 635 {AVDT_SCB_HDL_PKT, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST}, 636 /* CC_CLOSE_EVT */ 637 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}}; 638 639 /* state table for closing state */ 640 const uint8_t avdt_scb_st_closing[][AVDT_SCB_NUM_COLS] = { 641 /* Event */ 642 /* Action 1 Action 2 Next state */ 643 /* API_REMOVE_EVT */ 644 {AVDT_SCB_SET_REMOVE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 645 /* API_WRITE_REQ_EVT */ 646 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 647 /* API_GETCONFIG_REQ_EVT */ 648 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 649 /* API_DELAY_RPT_REQ_EVT */ 650 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 651 /* API_SETCONFIG_REQ_EVT */ 652 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 653 /* API_OPEN_REQ_EVT */ 654 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 655 /* API_CLOSE_REQ_EVT */ 656 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 657 /* API_RECONFIG_REQ_EVT */ 658 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 659 /* API_SECURITY_REQ_EVT */ 660 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 661 /* API_ABORT_REQ_EVT */ 662 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 663 /* API_GETCONFIG_RSP_EVT */ 664 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 665 /* API_SETCONFIG_RSP_EVT */ 666 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 667 /* API_SETCONFIG_REJ_EVT */ 668 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 669 /* API_OPEN_RSP_EVT */ 670 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 671 /* API_CLOSE_RSP_EVT */ 672 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 673 /* API_RECONFIG_RSP_EVT */ 674 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 675 /* API_SECURITY_RSP_EVT */ 676 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 677 /* API_ABORT_RSP_EVT */ 678 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 679 /* MSG_SETCONFIG_CMD_EVT */ 680 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 681 /* MSG_GETCONFIG_CMD_EVT */ 682 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 683 /* MSG_OPEN_CMD_EVT */ 684 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 685 /* MSG_START_CMD_EVT */ 686 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 687 /* MSG_SUSPEND_CMD_EVT */ 688 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 689 /* MSG_CLOSE_CMD_EVT */ 690 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 691 /* MSG_ABORT_CMD_EVT */ 692 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 693 /* MSG_RECONFIG_CMD_EVT */ 694 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 695 /* MSG_SECURITY_CMD_EVT */ 696 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 697 /* MSG_DELAY_RPT_CMD_EVT */ 698 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 699 /* MSG_DELAY_RPT_RSP_EVT */ 700 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 701 /* MSG_SETCONFIG_RSP_EVT */ 702 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 703 /* MSG_GETCONFIG_RSP_EVT */ 704 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 705 /* MSG_OPEN_RSP_EVT */ 706 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 707 /* MSG_START_RSP_EVT */ 708 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 709 /* MSG_SUSPEND_RSP_EVT */ 710 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 711 /* MSG_CLOSE_RSP_EVT */ 712 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_CLOSE_RSP, AVDT_SCB_CLOSING_ST}, 713 /* MSG_ABORT_RSP_EVT */ 714 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_CLOSING_ST}, 715 /* MSG_RECONFIG_RSP_EVT */ 716 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 717 /* MSG_SECURITY_RSP_EVT */ 718 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 719 /* MSG_SETCONFIG_REJ_EVT */ 720 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 721 /* MSG_OPEN_REJ_EVT */ 722 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 723 /* MSG_START_REJ_EVT */ 724 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 725 /* MSG_SUSPEND_REJ_EVT */ 726 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 727 /* TC_TOUT_EVT */ 728 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 729 /* TC_OPEN_EVT */ 730 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 731 /* TC_CLOSE_EVT */ 732 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}, 733 /* TC_CONG_EVT */ 734 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 735 /* TC_DATA_EVT */ 736 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}, 737 /* CC_CLOSE_EVT */ 738 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}}; 739 740 /* type for state table */ 741 typedef const uint8_t (*tAVDT_SCB_ST_TBL)[AVDT_SCB_NUM_COLS]; 742 743 /* state table */ 744 const tAVDT_SCB_ST_TBL avdt_scb_st_tbl[] = { 745 avdt_scb_st_idle, avdt_scb_st_conf, avdt_scb_st_opening, 746 avdt_scb_st_open, avdt_scb_st_stream, avdt_scb_st_closing}; 747 748 /******************************************************************************* 749 * 750 * Function avdt_scb_event 751 * 752 * Description State machine event handling function for scb 753 * 754 * 755 * Returns Nothing. 756 * 757 ******************************************************************************/ 758 void avdt_scb_event(AvdtpScb* p_scb, uint8_t event, tAVDT_SCB_EVT* p_data) { 759 tAVDT_SCB_ST_TBL state_table; 760 uint8_t action; 761 int i; 762 763 #if (AVDT_DEBUG == TRUE) 764 AVDT_TRACE_EVENT( 765 "%s: SCB hdl=%d event=%d/%s state=%s p_avdt_scb=%p scb_index=%d", 766 __func__, avdt_scb_to_hdl(p_scb), event, avdt_scb_evt_str[event], 767 avdt_scb_st_str[p_scb->state], p_scb, p_scb->stream_config.scb_index); 768 #endif 769 /* set current event */ 770 p_scb->curr_evt = event; 771 772 /* look up the state table for the current state */ 773 state_table = avdt_scb_st_tbl[p_scb->state]; 774 775 /* set next state */ 776 if (p_scb->state != state_table[event][AVDT_SCB_NEXT_STATE]) { 777 p_scb->state = state_table[event][AVDT_SCB_NEXT_STATE]; 778 } 779 780 /* execute action functions */ 781 for (i = 0; i < AVDT_SCB_ACTIONS; i++) { 782 action = state_table[event][i]; 783 if (action != AVDT_SCB_IGNORE) { 784 (*avdtp_cb.p_scb_act[action])(p_scb, p_data); 785 } else { 786 break; 787 } 788 } 789 } 790 791 /******************************************************************************* 792 * 793 * Function avdt_scb_init 794 * 795 * Description Initialize stream control block module. 796 * 797 * 798 * Returns Nothing. 799 * 800 ******************************************************************************/ 801 void avdt_scb_init(void) { 802 for (size_t i = 0; i < AVDT_NUM_LINKS; i++) { 803 for (size_t j = 0; j < AVDT_NUM_SEPS; j++) { 804 avdtp_cb.ccb[i].scb[j].Reset(0); 805 } 806 } 807 808 avdtp_cb.p_scb_act = avdt_scb_action; 809 } 810 811 /******************************************************************************* 812 * 813 * Function avdt_scb_alloc 814 * 815 * Description Allocate a stream control block. 816 * 817 * 818 * Returns pointer to the scb, or NULL if none could be allocated. 819 * 820 ******************************************************************************/ 821 AvdtpScb* avdt_scb_alloc(uint8_t peer_id, 822 const AvdtpStreamConfig& avdtp_stream_config) { 823 CHECK(peer_id < AVDT_NUM_LINKS); 824 825 // Find available entry 826 AvdtpScb* p_scb = &avdtp_cb.ccb[peer_id].scb[0]; 827 for (int i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) { 828 if (!p_scb->allocated) { 829 p_scb->Allocate(&avdtp_cb.ccb[peer_id], avdtp_stream_config); 830 AVDT_TRACE_DEBUG("%s: allocated (handle=%d, psc_mask:0x%x)", __func__, 831 p_scb->ScbHandle(), avdtp_stream_config.cfg.psc_mask); 832 return p_scb; 833 } 834 } 835 836 AVDT_TRACE_WARNING("%s: out of AvdtScb entries for peer_id %d", __func__, 837 peer_id); 838 return nullptr; 839 } 840 841 void AvdtpScb::Allocate(AvdtpCcb* p_avdtp_ccb, 842 const AvdtpStreamConfig& avdtp_stream_config) { 843 uint8_t scb_handle = avdtp_cb.ComputeScbHandle(this); 844 Reset(scb_handle); 845 p_ccb = p_avdtp_ccb; 846 stream_config = avdtp_stream_config; 847 transport_channel_timer = alarm_new("avdtp_scb.transport_channel_timer"); 848 allocated = true; 849 } 850 851 /******************************************************************************* 852 * 853 * Function avdt_scb_dealloc 854 * 855 * Description Deallocate a stream control block. 856 * 857 * 858 * Returns void. 859 * 860 ******************************************************************************/ 861 void avdt_scb_dealloc(AvdtpScb* p_scb, UNUSED_ATTR tAVDT_SCB_EVT* p_data) { 862 AVDT_TRACE_DEBUG("%s: hdl=%d", __func__, avdt_scb_to_hdl(p_scb)); 863 p_scb->Recycle(); 864 } 865 866 /******************************************************************************* 867 * 868 * Function avdt_scb_to_hdl 869 * 870 * Description Given a pointer to an scb, return its handle (or seid). 871 * 872 * 873 * Returns Index of scb. 874 * 875 ******************************************************************************/ 876 uint8_t avdt_scb_to_hdl(AvdtpScb* p_scb) { return p_scb->ScbHandle(); } 877 878 /******************************************************************************* 879 * 880 * Function avdt_scb_by_hdl 881 * 882 * Description Given an scb handle (or seid), return a pointer to the scb. 883 * 884 * 885 * Returns Pointer to scb or NULL if index is out of range or scb 886 * is not allocated. 887 * 888 ******************************************************************************/ 889 AvdtpScb* avdt_scb_by_hdl(uint8_t hdl) { 890 // Verify the index 891 if ((hdl < 1) || (hdl > AVDT_NUM_LINKS * AVDT_NUM_SEPS)) { 892 AVDT_TRACE_WARNING("%s: SCB handle %d out of range", __func__, hdl); 893 return nullptr; 894 } 895 896 uint8_t index = hdl - 1; 897 size_t i = index / AVDT_NUM_LINKS; 898 size_t j = index % AVDT_NUM_SEPS; 899 900 AvdtpScb* p_scb = &avdtp_cb.ccb[i].scb[j]; 901 // Verify the whether the scb is allocated 902 if (!p_scb->allocated) { 903 AVDT_TRACE_WARNING("%s: SCB handle %d not allocated", __func__, hdl); 904 return nullptr; 905 } 906 907 AVDT_TRACE_DEBUG("%s: SCB for handle %d found: p_scb=%p scb_index=%d", 908 __func__, hdl, p_scb, p_scb->stream_config.scb_index); 909 return p_scb; 910 } 911 912 /******************************************************************************* 913 * 914 * Function avdt_scb_verify 915 * 916 * Description Verify the condition of a list of scbs. 917 * 918 * 919 * Returns SEID that failed, or 0 if success. 920 * 921 ******************************************************************************/ 922 uint8_t avdt_scb_verify(AvdtpCcb* p_ccb, uint8_t state, uint8_t* p_seid, 923 uint16_t num_seid, uint8_t* p_err_code) { 924 int i; 925 AvdtpScb* p_scb; 926 uint8_t nsc_mask; 927 uint8_t ret = 0; 928 929 AVDT_TRACE_DEBUG("avdt_scb_verify state %d", state); 930 /* set nonsupported command mask */ 931 /* translate public state into private state */ 932 nsc_mask = 0; 933 if (state == AVDT_VERIFY_SUSPEND) { 934 nsc_mask = AvdtpStreamConfig::AVDT_NSC_SUSPEND; 935 } 936 937 /* verify every scb */ 938 for (i = 0, *p_err_code = 0; 939 (i < num_seid) && (*p_err_code == 0) && (i < AVDT_NUM_SEPS); i++) { 940 p_scb = avdt_scb_by_hdl(p_seid[i]); 941 if (p_scb == NULL) 942 *p_err_code = AVDT_ERR_BAD_STATE; 943 else if (p_scb->p_ccb != p_ccb) 944 *p_err_code = AVDT_ERR_BAD_STATE; 945 else if (p_scb->stream_config.nsc_mask & nsc_mask) 946 *p_err_code = AVDT_ERR_NSC; 947 948 switch (state) { 949 case AVDT_VERIFY_OPEN: 950 case AVDT_VERIFY_START: 951 if (p_scb->state != AVDT_SCB_OPEN_ST && 952 p_scb->state != AVDT_SCB_STREAM_ST) 953 *p_err_code = AVDT_ERR_BAD_STATE; 954 break; 955 956 case AVDT_VERIFY_SUSPEND: 957 case AVDT_VERIFY_STREAMING: 958 if (p_scb->state != AVDT_SCB_STREAM_ST) 959 *p_err_code = AVDT_ERR_BAD_STATE; 960 break; 961 } 962 } 963 964 if ((i != num_seid) && (i < AVDT_NUM_SEPS)) { 965 ret = p_seid[i]; 966 } 967 968 return ret; 969 } 970 971 /******************************************************************************* 972 * 973 * Function avdt_scb_peer_seid_list 974 * 975 * Description Given a list of SCB handles, return a list of peer SEIDs 976 * for the handles, copied in place into the struct passed in. 977 * 978 * 979 * Returns Nothing. 980 * 981 ******************************************************************************/ 982 void avdt_scb_peer_seid_list(tAVDT_MULTI* p_multi) { 983 int i; 984 AvdtpScb* p_scb; 985 986 for (i = 0; i < p_multi->num_seps; i++) { 987 p_scb = avdt_scb_by_hdl(p_multi->seid_list[i]); 988 if (p_scb != NULL) { 989 p_multi->seid_list[i] = p_scb->peer_seid; 990 } 991 } 992 } 993
