1 /****************************************************************************** 2 * 3 * Copyright (C) 2004-2012 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 is the stream state machine for the BTA advanced audio/video. 22 * 23 ******************************************************************************/ 24 25 #include "bt_target.h" 26 #if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE) 27 28 #include <string.h> 29 #include "bta_av_co.h" 30 #include "bta_av_int.h" 31 32 /***************************************************************************** 33 ** Constants and types 34 *****************************************************************************/ 35 36 /* state machine states */ 37 enum 38 { 39 BTA_AV_INIT_SST, 40 BTA_AV_INCOMING_SST, 41 BTA_AV_OPENING_SST, 42 BTA_AV_OPEN_SST, 43 BTA_AV_RCFG_SST, 44 BTA_AV_CLOSING_SST 45 }; 46 47 48 /* state machine action enumeration list */ 49 enum 50 { 51 BTA_AV_DO_DISC, 52 BTA_AV_CLEANUP, 53 BTA_AV_FREE_SDB, 54 BTA_AV_CONFIG_IND, 55 BTA_AV_DISCONNECT_REQ, 56 BTA_AV_SECURITY_REQ, 57 BTA_AV_SECURITY_RSP, 58 BTA_AV_SETCONFIG_RSP, 59 BTA_AV_ST_RC_TIMER, 60 BTA_AV_STR_OPENED, 61 BTA_AV_SECURITY_IND, 62 BTA_AV_SECURITY_CFM, 63 BTA_AV_DO_CLOSE, 64 BTA_AV_CONNECT_REQ, 65 BTA_AV_SDP_FAILED, 66 BTA_AV_DISC_RESULTS, 67 BTA_AV_DISC_RES_AS_ACP, 68 BTA_AV_OPEN_FAILED, 69 BTA_AV_GETCAP_RESULTS, 70 BTA_AV_SETCONFIG_REJ, 71 BTA_AV_DISCOVER_REQ, 72 BTA_AV_CONN_FAILED, 73 BTA_AV_DO_START, 74 BTA_AV_STR_STOPPED, 75 BTA_AV_RECONFIG, 76 BTA_AV_DATA_PATH, 77 BTA_AV_START_OK, 78 BTA_AV_START_FAILED, 79 BTA_AV_STR_CLOSED, 80 BTA_AV_CLR_CONG, 81 BTA_AV_SUSPEND_CFM, 82 BTA_AV_RCFG_STR_OK, 83 BTA_AV_RCFG_FAILED, 84 BTA_AV_RCFG_CONNECT, 85 BTA_AV_RCFG_DISCNTD, 86 BTA_AV_SUSPEND_CONT, 87 BTA_AV_RCFG_CFM, 88 BTA_AV_RCFG_OPEN, 89 BTA_AV_SECURITY_REJ, 90 BTA_AV_OPEN_RC, 91 BTA_AV_CHK_2ND_START, 92 BTA_AV_SAVE_CAPS, 93 BTA_AV_SET_USE_RC, 94 BTA_AV_CCO_CLOSE, 95 BTA_AV_SWITCH_ROLE, 96 BTA_AV_ROLE_RES, 97 BTA_AV_DELAY_CO, 98 BTA_AV_OPEN_AT_INC, 99 BTA_AV_NUM_SACTIONS 100 }; 101 102 #define BTA_AV_SIGNORE BTA_AV_NUM_SACTIONS 103 104 105 /* state table information */ 106 /* #define BTA_AV_SACTION_COL 0 position of actions */ 107 #define BTA_AV_SACTIONS 2 /* number of actions */ 108 #define BTA_AV_SNEXT_STATE 2 /* position of next state */ 109 #define BTA_AV_NUM_COLS 3 /* number of columns in state tables */ 110 111 /* state table for init state */ 112 static const UINT8 bta_av_sst_init[][BTA_AV_NUM_COLS] = 113 { 114 /* Event Action 1 Action 2 Next state */ 115 /* AP_OPEN_EVT */ {BTA_AV_DO_DISC, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 116 /* AP_CLOSE_EVT */ {BTA_AV_CLEANUP, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 117 /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 118 /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 119 /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 120 /* API_PROTECT_REQ_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 121 /* API_PROTECT_RSP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 122 /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 123 /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 124 /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 125 /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 126 /* SDP_DISC_OK_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 127 /* SDP_DISC_FAIL_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 128 /* STR_DISC_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 129 /* STR_DISC_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 130 /* STR_GETCAP_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 131 /* STR_GETCAP_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 132 /* STR_OPEN_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 133 /* STR_OPEN_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 134 /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 135 /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 136 /* STR_CLOSE_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 137 /* STR_CONFIG_IND_EVT */ {BTA_AV_SETCONFIG_REJ, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 138 /* STR_SECURITY_IND_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 139 /* STR_SECURITY_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 140 /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 141 /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 142 /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 143 /* AVRC_TIMER_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 144 /* AVDT_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 145 /* AVDT_DISCONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 146 /* ROLE_CHANGE_EVT*/ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 147 /* AVDT_DELAY_RPT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 148 /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST } 149 }; 150 151 /* state table for incoming state */ 152 static const UINT8 bta_av_sst_incoming[][BTA_AV_NUM_COLS] = 153 { 154 /* Event Action 1 Action 2 Next state */ 155 /* AP_OPEN_EVT */ {BTA_AV_OPEN_AT_INC, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 156 /* AP_CLOSE_EVT */ {BTA_AV_CCO_CLOSE, BTA_AV_DISCONNECT_REQ, BTA_AV_CLOSING_SST }, 157 /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 158 /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 159 /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 160 /* API_PROTECT_REQ_EVT */ {BTA_AV_SECURITY_REQ, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 161 /* API_PROTECT_RSP_EVT */ {BTA_AV_SECURITY_RSP, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 162 /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 163 /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 164 /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SETCONFIG_RSP, BTA_AV_ST_RC_TIMER, BTA_AV_INCOMING_SST }, 165 /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SETCONFIG_RSP, BTA_AV_CLEANUP, BTA_AV_INIT_SST }, 166 /* SDP_DISC_OK_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 167 /* SDP_DISC_FAIL_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 168 /* STR_DISC_OK_EVT */ {BTA_AV_DISC_RES_AS_ACP,BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 169 /* STR_DISC_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 170 /* STR_GETCAP_OK_EVT */ {BTA_AV_SAVE_CAPS, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 171 /* STR_GETCAP_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 172 /* STR_OPEN_OK_EVT */ {BTA_AV_STR_OPENED, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 173 /* STR_OPEN_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 174 /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 175 /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 176 /* STR_CLOSE_EVT */ {BTA_AV_CCO_CLOSE, BTA_AV_CLEANUP, BTA_AV_INIT_SST }, 177 /* STR_CONFIG_IND_EVT */ {BTA_AV_CONFIG_IND, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 178 /* STR_SECURITY_IND_EVT */ {BTA_AV_SECURITY_IND, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 179 /* STR_SECURITY_CFM_EVT */ {BTA_AV_SECURITY_CFM, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 180 /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 181 /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 182 /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 183 /* AVRC_TIMER_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 184 /* AVDT_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 185 /* AVDT_DISCONNECT_EVT */ {BTA_AV_CCO_CLOSE, BTA_AV_CLEANUP, BTA_AV_INIT_SST }, 186 /* ROLE_CHANGE_EVT*/ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 187 /* AVDT_DELAY_RPT_EVT */ {BTA_AV_DELAY_CO, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 188 /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST } 189 }; 190 191 /* state table for opening state */ 192 static const UINT8 bta_av_sst_opening[][BTA_AV_NUM_COLS] = 193 { 194 /* Event Action 1 Action 2 Next state */ 195 /* AP_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 196 /* AP_CLOSE_EVT */ {BTA_AV_DO_CLOSE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 197 /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 198 /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 199 /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 200 /* API_PROTECT_REQ_EVT */ {BTA_AV_SECURITY_REQ, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 201 /* API_PROTECT_RSP_EVT */ {BTA_AV_SECURITY_RSP, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 202 /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 203 /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 204 /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 205 /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 206 /* SDP_DISC_OK_EVT */ {BTA_AV_CONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 207 /* SDP_DISC_FAIL_EVT */ {BTA_AV_CONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 208 /* STR_DISC_OK_EVT */ {BTA_AV_DISC_RESULTS, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 209 /* STR_DISC_FAIL_EVT */ {BTA_AV_OPEN_FAILED, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 210 /* STR_GETCAP_OK_EVT */ {BTA_AV_GETCAP_RESULTS, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 211 /* STR_GETCAP_FAIL_EVT */ {BTA_AV_OPEN_FAILED, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 212 /* STR_OPEN_OK_EVT */ {BTA_AV_ST_RC_TIMER, BTA_AV_STR_OPENED, BTA_AV_OPEN_SST }, 213 /* STR_OPEN_FAIL_EVT */ {BTA_AV_OPEN_FAILED, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 214 /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 215 /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 216 /* STR_CLOSE_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 217 /* STR_CONFIG_IND_EVT */ {BTA_AV_CONFIG_IND, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, 218 /* STR_SECURITY_IND_EVT */ {BTA_AV_SECURITY_IND, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 219 /* STR_SECURITY_CFM_EVT */ {BTA_AV_SECURITY_CFM, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 220 /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 221 /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 222 /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 223 /* AVRC_TIMER_EVT */ {BTA_AV_SWITCH_ROLE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 224 /* AVDT_CONNECT_EVT */ {BTA_AV_DISCOVER_REQ, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 225 /* AVDT_DISCONNECT_EVT */ {BTA_AV_CONN_FAILED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 226 /* ROLE_CHANGE_EVT*/ {BTA_AV_ROLE_RES, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 227 /* AVDT_DELAY_RPT_EVT */ {BTA_AV_DELAY_CO, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, 228 /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST } 229 }; 230 231 /* state table for open state */ 232 static const UINT8 bta_av_sst_open[][BTA_AV_NUM_COLS] = 233 { 234 /* Event Action 1 Action 2 Next state */ 235 /* AP_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 236 /* AP_CLOSE_EVT */ {BTA_AV_DO_CLOSE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 237 /* AP_START_EVT */ {BTA_AV_DO_START, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 238 /* AP_STOP_EVT */ {BTA_AV_STR_STOPPED, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 239 /* API_RECONFIG_EVT */ {BTA_AV_RECONFIG, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 240 /* API_PROTECT_REQ_EVT */ {BTA_AV_SECURITY_REQ, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 241 /* API_PROTECT_RSP_EVT */ {BTA_AV_SECURITY_RSP, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 242 /* API_RC_OPEN_EVT */ {BTA_AV_SET_USE_RC, BTA_AV_OPEN_RC, BTA_AV_OPEN_SST }, 243 /* SRC_DATA_READY_EVT */ {BTA_AV_DATA_PATH, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 244 /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 245 /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 246 /* SDP_DISC_OK_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 247 /* SDP_DISC_FAIL_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 248 /* STR_DISC_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 249 /* STR_DISC_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 250 /* STR_GETCAP_OK_EVT */ {BTA_AV_SAVE_CAPS, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 251 /* STR_GETCAP_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 252 /* STR_OPEN_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 253 /* STR_OPEN_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 254 /* STR_START_OK_EVT */ {BTA_AV_START_OK, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 255 /* STR_START_FAIL_EVT */ {BTA_AV_START_FAILED, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 256 /* STR_CLOSE_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 257 /* STR_CONFIG_IND_EVT */ {BTA_AV_SETCONFIG_REJ, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 258 /* STR_SECURITY_IND_EVT */ {BTA_AV_SECURITY_IND, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 259 /* STR_SECURITY_CFM_EVT */ {BTA_AV_SECURITY_CFM, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 260 /* STR_WRITE_CFM_EVT */ {BTA_AV_CLR_CONG, BTA_AV_DATA_PATH, BTA_AV_OPEN_SST }, 261 /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SUSPEND_CFM, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 262 /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 263 /* AVRC_TIMER_EVT */ {BTA_AV_OPEN_RC, BTA_AV_CHK_2ND_START, BTA_AV_OPEN_SST }, 264 /* AVDT_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 265 /* AVDT_DISCONNECT_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 266 /* ROLE_CHANGE_EVT*/ {BTA_AV_ROLE_RES, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 267 /* AVDT_DELAY_RPT_EVT */ {BTA_AV_DELAY_CO, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 268 /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST } 269 }; 270 271 /* state table for reconfig state */ 272 static const UINT8 bta_av_sst_rcfg[][BTA_AV_NUM_COLS] = 273 { 274 /* Event Action 1 Action 2 Next state */ 275 /* AP_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 276 /* AP_CLOSE_EVT */ {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 277 /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 278 /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 279 /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 280 /* API_PROTECT_REQ_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 281 /* API_PROTECT_RSP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 282 /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 283 /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 284 /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 285 /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 286 /* SDP_DISC_OK_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 287 /* SDP_DISC_FAIL_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 288 /* STR_DISC_OK_EVT */ {BTA_AV_DISC_RESULTS, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 289 /* STR_DISC_FAIL_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 290 /* STR_GETCAP_OK_EVT */ {BTA_AV_GETCAP_RESULTS, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 291 /* STR_GETCAP_FAIL_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 292 /* STR_OPEN_OK_EVT */ {BTA_AV_RCFG_STR_OK, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, 293 /* STR_OPEN_FAIL_EVT */ {BTA_AV_RCFG_FAILED, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 294 /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 295 /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 296 /* STR_CLOSE_EVT */ {BTA_AV_RCFG_CONNECT, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 297 /* STR_CONFIG_IND_EVT */ {BTA_AV_SETCONFIG_REJ, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 298 /* STR_SECURITY_IND_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 299 /* STR_SECURITY_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 300 /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 301 /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SUSPEND_CONT, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 302 /* STR_RECONFIG_CFM_EVT */ {BTA_AV_RCFG_CFM, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 303 /* AVRC_TIMER_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 304 /* AVDT_CONNECT_EVT */ {BTA_AV_RCFG_OPEN, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 305 /* AVDT_DISCONNECT_EVT */ {BTA_AV_RCFG_DISCNTD, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 306 /* ROLE_CHANGE_EVT*/ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 307 /* AVDT_DELAY_RPT_EVT */ {BTA_AV_DELAY_CO, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, 308 /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST } 309 }; 310 311 /* state table for closing state */ 312 static const UINT8 bta_av_sst_closing[][BTA_AV_NUM_COLS] = 313 { 314 /* Event Action 1 Action 2 Next state */ 315 /* AP_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 316 /* AP_CLOSE_EVT */ {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 317 /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 318 /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 319 /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 320 /* API_PROTECT_REQ_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 321 /* API_PROTECT_RSP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 322 /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 323 /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 324 /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 325 /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 326 /* SDP_DISC_OK_EVT */ {BTA_AV_SDP_FAILED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 327 /* SDP_DISC_FAIL_EVT */ {BTA_AV_SDP_FAILED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 328 /* STR_DISC_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 329 /* STR_DISC_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 330 /* STR_GETCAP_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 331 /* STR_GETCAP_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 332 /* STR_OPEN_OK_EVT */ {BTA_AV_DO_CLOSE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 333 /* STR_OPEN_FAIL_EVT */ {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 334 /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 335 /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 336 /* STR_CLOSE_EVT */ {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 337 /* STR_CONFIG_IND_EVT */ {BTA_AV_SETCONFIG_REJ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 338 /* STR_SECURITY_IND_EVT */ {BTA_AV_SECURITY_REJ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 339 /* STR_SECURITY_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 340 /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 341 /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 342 /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 343 /* AVRC_TIMER_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 344 /* AVDT_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 345 /* AVDT_DISCONNECT_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, 346 /* ROLE_CHANGE_EVT*/ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 347 /* AVDT_DELAY_RPT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, 348 /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST } 349 }; 350 351 /* type for state table */ 352 typedef const UINT8 (*tBTA_AV_SST_TBL)[BTA_AV_NUM_COLS]; 353 354 /* state table */ 355 static const tBTA_AV_SST_TBL bta_av_sst_tbl[] = 356 { 357 bta_av_sst_init, 358 bta_av_sst_incoming, 359 bta_av_sst_opening, 360 bta_av_sst_open, 361 bta_av_sst_rcfg, 362 bta_av_sst_closing 363 }; 364 365 366 367 #if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE) 368 static char *bta_av_sst_code(UINT8 state); 369 #endif 370 371 /******************************************************************************* 372 ** 373 ** Function bta_av_is_rcfg_sst 374 ** 375 ** Description Check if stream state machine is in reconfig state. 376 ** 377 ** 378 ** Returns TRUE if stream state machine is in reconfig state. 379 ** 380 *******************************************************************************/ 381 BOOLEAN bta_av_is_rcfg_sst (tBTA_AV_SCB *p_scb) 382 { 383 BOOLEAN is_rcfg_sst = FALSE; 384 385 if (p_scb != NULL) 386 { 387 if (p_scb->state == BTA_AV_RCFG_SST) 388 is_rcfg_sst = TRUE; 389 } 390 391 return is_rcfg_sst; 392 } 393 394 /******************************************************************************* 395 ** 396 ** Function bta_av_ssm_execute 397 ** 398 ** Description Stream state machine event handling function for AV 399 ** 400 ** 401 ** Returns void 402 ** 403 *******************************************************************************/ 404 void bta_av_ssm_execute(tBTA_AV_SCB *p_scb, UINT16 event, tBTA_AV_DATA *p_data) 405 { 406 tBTA_AV_SST_TBL state_table; 407 UINT8 action; 408 int i, xx; 409 410 if(p_scb == NULL) 411 { 412 /* this stream is not registered */ 413 APPL_TRACE_EVENT0("AV channel not registered"); 414 return; 415 } 416 417 /* In case incoming connection is for VDP, we need to swap scb. */ 418 /* When ACP_CONNECT_EVT was received, we put first available scb to */ 419 /* to Incoming state. Later, when STR_CONFIG_IND_EVT is coming, we */ 420 /* know if it is A2DP or VDP. */ 421 if ((p_scb->state == BTA_AV_INIT_SST) && (event == BTA_AV_STR_CONFIG_IND_EVT)) 422 { 423 for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) 424 { 425 if (bta_av_cb.p_scb[xx]) 426 { 427 if (bta_av_cb.p_scb[xx]->state == BTA_AV_INCOMING_SST) 428 { 429 bta_av_cb.p_scb[xx]->state = BTA_AV_INIT_SST; 430 bta_av_cb.p_scb[xx]->coll_mask = 0; 431 p_scb->state = BTA_AV_INCOMING_SST; 432 break; 433 } 434 } 435 } 436 } 437 438 #if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE) 439 APPL_TRACE_VERBOSE5("AV Sevent(0x%x)=0x%x(%s) state=%d(%s)", 440 p_scb->hndl, event, bta_av_evt_code(event), p_scb->state, bta_av_sst_code(p_scb->state)); 441 #else 442 APPL_TRACE_VERBOSE2("AV Sevent=0x%x state=%d", event, p_scb->state); 443 #endif 444 445 /* look up the state table for the current state */ 446 state_table = bta_av_sst_tbl[p_scb->state]; 447 448 event -= BTA_AV_FIRST_SSM_EVT; 449 450 /* set next state */ 451 p_scb->state = state_table[event][BTA_AV_SNEXT_STATE]; 452 453 /* execute action functions */ 454 for(i=0; i< BTA_AV_SACTIONS; i++) 455 { 456 if ((action = state_table[event][i]) != BTA_AV_SIGNORE) 457 { 458 (*p_scb->p_act_tbl[action])(p_scb, p_data); 459 } 460 else 461 break; 462 } 463 464 } 465 466 /******************************************************************************* 467 ** 468 ** Function bta_av_is_scb_opening 469 ** 470 ** Description Returns TRUE is scb is in opening state. 471 ** 472 ** 473 ** Returns TRUE if scb is in opening state. 474 ** 475 *******************************************************************************/ 476 BOOLEAN bta_av_is_scb_opening (tBTA_AV_SCB *p_scb) 477 { 478 BOOLEAN is_opening = FALSE; 479 480 if (p_scb) 481 { 482 if (p_scb->state == BTA_AV_OPENING_SST) 483 is_opening = TRUE; 484 } 485 486 return is_opening; 487 } 488 489 /******************************************************************************* 490 ** 491 ** Function bta_av_is_scb_incoming 492 ** 493 ** Description Returns TRUE is scb is in incoming state. 494 ** 495 ** 496 ** Returns TRUE if scb is in incoming state. 497 ** 498 *******************************************************************************/ 499 BOOLEAN bta_av_is_scb_incoming (tBTA_AV_SCB *p_scb) 500 { 501 BOOLEAN is_incoming = FALSE; 502 503 if (p_scb) 504 { 505 if (p_scb->state == BTA_AV_INCOMING_SST) 506 is_incoming = TRUE; 507 } 508 509 return is_incoming; 510 } 511 512 /******************************************************************************* 513 ** 514 ** Function bta_av_set_scb_sst_init 515 ** 516 ** Description Set SST state to INIT. 517 ** Use this function to change SST outside of state machine. 518 ** 519 ** Returns None 520 ** 521 *******************************************************************************/ 522 void bta_av_set_scb_sst_init (tBTA_AV_SCB *p_scb) 523 { 524 if (p_scb) 525 { 526 p_scb->state = BTA_AV_INIT_SST; 527 } 528 } 529 530 /******************************************************************************* 531 ** 532 ** Function bta_av_is_scb_init 533 ** 534 ** Description Returns TRUE is scb is in init state. 535 ** 536 ** 537 ** Returns TRUE if scb is in incoming state. 538 ** 539 *******************************************************************************/ 540 BOOLEAN bta_av_is_scb_init (tBTA_AV_SCB *p_scb) 541 { 542 BOOLEAN is_init = FALSE; 543 544 if (p_scb) 545 { 546 if (p_scb->state == BTA_AV_INIT_SST) 547 is_init = TRUE; 548 } 549 550 return is_init; 551 } 552 553 /******************************************************************************* 554 ** 555 ** Function bta_av_set_scb_sst_incoming 556 ** 557 ** Description Set SST state to incoming. 558 ** Use this function to change SST outside of state machine. 559 ** 560 ** Returns None 561 ** 562 *******************************************************************************/ 563 void bta_av_set_scb_sst_incoming (tBTA_AV_SCB *p_scb) 564 { 565 if (p_scb) 566 { 567 p_scb->state = BTA_AV_INCOMING_SST; 568 } 569 } 570 571 /***************************************************************************** 572 ** Debug Functions 573 *****************************************************************************/ 574 #if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE) 575 /******************************************************************************* 576 ** 577 ** Function bta_av_sst_code 578 ** 579 ** Description 580 ** 581 ** Returns char * 582 ** 583 *******************************************************************************/ 584 static char *bta_av_sst_code(UINT8 state) 585 { 586 switch(state) 587 { 588 case BTA_AV_INIT_SST: return "INIT"; 589 case BTA_AV_INCOMING_SST: return "INCOMING"; 590 case BTA_AV_OPENING_SST: return "OPENING"; 591 case BTA_AV_OPEN_SST: return "OPEN"; 592 case BTA_AV_RCFG_SST: return "RCFG"; 593 case BTA_AV_CLOSING_SST: return "CLOSING"; 594 default: return "unknown"; 595 } 596 } 597 598 #endif 599 #endif /* BTA_AV_INCLUDED */ 600
