/****************************************************************************** * * Copyright (C) 2004-2012 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ /****************************************************************************** * * This is the stream state machine for the BTA advanced audio/video. * ******************************************************************************/ #include "bt_target.h" #if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE) #include #include "bta_av_co.h" #include "bta_av_int.h" /***************************************************************************** ** Constants and types *****************************************************************************/ /* state machine states */ enum { BTA_AV_INIT_SST, BTA_AV_INCOMING_SST, BTA_AV_OPENING_SST, BTA_AV_OPEN_SST, BTA_AV_RCFG_SST, BTA_AV_CLOSING_SST }; /* state machine action enumeration list */ enum { BTA_AV_DO_DISC, BTA_AV_CLEANUP, BTA_AV_FREE_SDB, BTA_AV_CONFIG_IND, BTA_AV_DISCONNECT_REQ, BTA_AV_SECURITY_REQ, BTA_AV_SECURITY_RSP, BTA_AV_SETCONFIG_RSP, BTA_AV_ST_RC_TIMER, BTA_AV_STR_OPENED, BTA_AV_SECURITY_IND, BTA_AV_SECURITY_CFM, BTA_AV_DO_CLOSE, BTA_AV_CONNECT_REQ, BTA_AV_SDP_FAILED, BTA_AV_DISC_RESULTS, BTA_AV_DISC_RES_AS_ACP, BTA_AV_OPEN_FAILED, BTA_AV_GETCAP_RESULTS, BTA_AV_SETCONFIG_REJ, BTA_AV_DISCOVER_REQ, BTA_AV_CONN_FAILED, BTA_AV_DO_START, BTA_AV_STR_STOPPED, BTA_AV_RECONFIG, BTA_AV_DATA_PATH, BTA_AV_START_OK, BTA_AV_START_FAILED, BTA_AV_STR_CLOSED, BTA_AV_CLR_CONG, BTA_AV_SUSPEND_CFM, BTA_AV_RCFG_STR_OK, BTA_AV_RCFG_FAILED, BTA_AV_RCFG_CONNECT, BTA_AV_RCFG_DISCNTD, BTA_AV_SUSPEND_CONT, BTA_AV_RCFG_CFM, BTA_AV_RCFG_OPEN, BTA_AV_SECURITY_REJ, BTA_AV_OPEN_RC, BTA_AV_CHK_2ND_START, BTA_AV_SAVE_CAPS, BTA_AV_SET_USE_RC, BTA_AV_CCO_CLOSE, BTA_AV_SWITCH_ROLE, BTA_AV_ROLE_RES, BTA_AV_DELAY_CO, BTA_AV_OPEN_AT_INC, BTA_AV_NUM_SACTIONS }; #define BTA_AV_SIGNORE BTA_AV_NUM_SACTIONS /* state table information */ /* #define BTA_AV_SACTION_COL 0 position of actions */ #define BTA_AV_SACTIONS 2 /* number of actions */ #define BTA_AV_SNEXT_STATE 2 /* position of next state */ #define BTA_AV_NUM_COLS 3 /* number of columns in state tables */ /* state table for init state */ static const UINT8 bta_av_sst_init[][BTA_AV_NUM_COLS] = { /* Event Action 1 Action 2 Next state */ /* AP_OPEN_EVT */ {BTA_AV_DO_DISC, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* AP_CLOSE_EVT */ {BTA_AV_CLEANUP, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* API_PROTECT_REQ_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* API_PROTECT_RSP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* SDP_DISC_OK_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* SDP_DISC_FAIL_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_DISC_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_DISC_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_GETCAP_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_GETCAP_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_OPEN_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_OPEN_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_CLOSE_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_CONFIG_IND_EVT */ {BTA_AV_SETCONFIG_REJ, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_SECURITY_IND_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_SECURITY_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* AVRC_TIMER_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* AVDT_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* AVDT_DISCONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* ROLE_CHANGE_EVT*/ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* AVDT_DELAY_RPT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST } }; /* state table for incoming state */ static const UINT8 bta_av_sst_incoming[][BTA_AV_NUM_COLS] = { /* Event Action 1 Action 2 Next state */ /* AP_OPEN_EVT */ {BTA_AV_OPEN_AT_INC, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* AP_CLOSE_EVT */ {BTA_AV_CCO_CLOSE, BTA_AV_DISCONNECT_REQ, BTA_AV_CLOSING_SST }, /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* API_PROTECT_REQ_EVT */ {BTA_AV_SECURITY_REQ, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* API_PROTECT_RSP_EVT */ {BTA_AV_SECURITY_RSP, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SETCONFIG_RSP, BTA_AV_ST_RC_TIMER, BTA_AV_INCOMING_SST }, /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SETCONFIG_RSP, BTA_AV_CLEANUP, BTA_AV_INIT_SST }, /* SDP_DISC_OK_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* SDP_DISC_FAIL_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_DISC_OK_EVT */ {BTA_AV_DISC_RES_AS_ACP,BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_DISC_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_GETCAP_OK_EVT */ {BTA_AV_SAVE_CAPS, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_GETCAP_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_OPEN_OK_EVT */ {BTA_AV_STR_OPENED, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_OPEN_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_CLOSE_EVT */ {BTA_AV_CCO_CLOSE, BTA_AV_CLEANUP, BTA_AV_INIT_SST }, /* STR_CONFIG_IND_EVT */ {BTA_AV_CONFIG_IND, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_SECURITY_IND_EVT */ {BTA_AV_SECURITY_IND, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_SECURITY_CFM_EVT */ {BTA_AV_SECURITY_CFM, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* AVRC_TIMER_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* AVDT_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* AVDT_DISCONNECT_EVT */ {BTA_AV_CCO_CLOSE, BTA_AV_CLEANUP, BTA_AV_INIT_SST }, /* ROLE_CHANGE_EVT*/ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* AVDT_DELAY_RPT_EVT */ {BTA_AV_DELAY_CO, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST } }; /* state table for opening state */ static const UINT8 bta_av_sst_opening[][BTA_AV_NUM_COLS] = { /* Event Action 1 Action 2 Next state */ /* AP_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* AP_CLOSE_EVT */ {BTA_AV_DO_CLOSE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* API_PROTECT_REQ_EVT */ {BTA_AV_SECURITY_REQ, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* API_PROTECT_RSP_EVT */ {BTA_AV_SECURITY_RSP, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* SDP_DISC_OK_EVT */ {BTA_AV_CONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* SDP_DISC_FAIL_EVT */ {BTA_AV_CONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_DISC_OK_EVT */ {BTA_AV_DISC_RESULTS, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_DISC_FAIL_EVT */ {BTA_AV_OPEN_FAILED, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_GETCAP_OK_EVT */ {BTA_AV_GETCAP_RESULTS, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_GETCAP_FAIL_EVT */ {BTA_AV_OPEN_FAILED, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_OPEN_OK_EVT */ {BTA_AV_ST_RC_TIMER, BTA_AV_STR_OPENED, BTA_AV_OPEN_SST }, /* STR_OPEN_FAIL_EVT */ {BTA_AV_OPEN_FAILED, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_CLOSE_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_CONFIG_IND_EVT */ {BTA_AV_CONFIG_IND, BTA_AV_SIGNORE, BTA_AV_INCOMING_SST }, /* STR_SECURITY_IND_EVT */ {BTA_AV_SECURITY_IND, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_SECURITY_CFM_EVT */ {BTA_AV_SECURITY_CFM, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* AVRC_TIMER_EVT */ {BTA_AV_SWITCH_ROLE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* AVDT_CONNECT_EVT */ {BTA_AV_DISCOVER_REQ, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* AVDT_DISCONNECT_EVT */ {BTA_AV_CONN_FAILED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* ROLE_CHANGE_EVT*/ {BTA_AV_ROLE_RES, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* AVDT_DELAY_RPT_EVT */ {BTA_AV_DELAY_CO, BTA_AV_SIGNORE, BTA_AV_OPENING_SST }, /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPENING_SST } }; /* state table for open state */ static const UINT8 bta_av_sst_open[][BTA_AV_NUM_COLS] = { /* Event Action 1 Action 2 Next state */ /* AP_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* AP_CLOSE_EVT */ {BTA_AV_DO_CLOSE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AP_START_EVT */ {BTA_AV_DO_START, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* AP_STOP_EVT */ {BTA_AV_STR_STOPPED, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* API_RECONFIG_EVT */ {BTA_AV_RECONFIG, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* API_PROTECT_REQ_EVT */ {BTA_AV_SECURITY_REQ, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* API_PROTECT_RSP_EVT */ {BTA_AV_SECURITY_RSP, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* API_RC_OPEN_EVT */ {BTA_AV_SET_USE_RC, BTA_AV_OPEN_RC, BTA_AV_OPEN_SST }, /* SRC_DATA_READY_EVT */ {BTA_AV_DATA_PATH, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* SDP_DISC_OK_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* SDP_DISC_FAIL_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_DISC_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_DISC_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_GETCAP_OK_EVT */ {BTA_AV_SAVE_CAPS, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_GETCAP_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_OPEN_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_OPEN_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_START_OK_EVT */ {BTA_AV_START_OK, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_START_FAIL_EVT */ {BTA_AV_START_FAILED, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_CLOSE_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_CONFIG_IND_EVT */ {BTA_AV_SETCONFIG_REJ, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_SECURITY_IND_EVT */ {BTA_AV_SECURITY_IND, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_SECURITY_CFM_EVT */ {BTA_AV_SECURITY_CFM, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_WRITE_CFM_EVT */ {BTA_AV_CLR_CONG, BTA_AV_DATA_PATH, BTA_AV_OPEN_SST }, /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SUSPEND_CFM, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* AVRC_TIMER_EVT */ {BTA_AV_OPEN_RC, BTA_AV_CHK_2ND_START, BTA_AV_OPEN_SST }, /* AVDT_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* AVDT_DISCONNECT_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* ROLE_CHANGE_EVT*/ {BTA_AV_ROLE_RES, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* AVDT_DELAY_RPT_EVT */ {BTA_AV_DELAY_CO, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_OPEN_SST } }; /* state table for reconfig state */ static const UINT8 bta_av_sst_rcfg[][BTA_AV_NUM_COLS] = { /* Event Action 1 Action 2 Next state */ /* AP_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* AP_CLOSE_EVT */ {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* API_PROTECT_REQ_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* API_PROTECT_RSP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* SDP_DISC_OK_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* SDP_DISC_FAIL_EVT */ {BTA_AV_FREE_SDB, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_DISC_OK_EVT */ {BTA_AV_DISC_RESULTS, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_DISC_FAIL_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_GETCAP_OK_EVT */ {BTA_AV_GETCAP_RESULTS, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_GETCAP_FAIL_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_OPEN_OK_EVT */ {BTA_AV_RCFG_STR_OK, BTA_AV_SIGNORE, BTA_AV_OPEN_SST }, /* STR_OPEN_FAIL_EVT */ {BTA_AV_RCFG_FAILED, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_CLOSE_EVT */ {BTA_AV_RCFG_CONNECT, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_CONFIG_IND_EVT */ {BTA_AV_SETCONFIG_REJ, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_SECURITY_IND_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_SECURITY_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SUSPEND_CONT, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* STR_RECONFIG_CFM_EVT */ {BTA_AV_RCFG_CFM, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* AVRC_TIMER_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* AVDT_CONNECT_EVT */ {BTA_AV_RCFG_OPEN, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* AVDT_DISCONNECT_EVT */ {BTA_AV_RCFG_DISCNTD, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* ROLE_CHANGE_EVT*/ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* AVDT_DELAY_RPT_EVT */ {BTA_AV_DELAY_CO, BTA_AV_SIGNORE, BTA_AV_RCFG_SST }, /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_RCFG_SST } }; /* state table for closing state */ static const UINT8 bta_av_sst_closing[][BTA_AV_NUM_COLS] = { /* Event Action 1 Action 2 Next state */ /* AP_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AP_CLOSE_EVT */ {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AP_START_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AP_STOP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* API_RECONFIG_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* API_PROTECT_REQ_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* API_PROTECT_RSP_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* API_RC_OPEN_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* SRC_DATA_READY_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* CI_SETCONFIG_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* CI_SETCONFIG_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* SDP_DISC_OK_EVT */ {BTA_AV_SDP_FAILED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* SDP_DISC_FAIL_EVT */ {BTA_AV_SDP_FAILED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* STR_DISC_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_DISC_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_GETCAP_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_GETCAP_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_OPEN_OK_EVT */ {BTA_AV_DO_CLOSE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_OPEN_FAIL_EVT */ {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_START_OK_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_START_FAIL_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_CLOSE_EVT */ {BTA_AV_DISCONNECT_REQ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_CONFIG_IND_EVT */ {BTA_AV_SETCONFIG_REJ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_SECURITY_IND_EVT */ {BTA_AV_SECURITY_REJ, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_SECURITY_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_WRITE_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_SUSPEND_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* STR_RECONFIG_CFM_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AVRC_TIMER_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AVDT_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AVDT_DISCONNECT_EVT */ {BTA_AV_STR_CLOSED, BTA_AV_SIGNORE, BTA_AV_INIT_SST }, /* ROLE_CHANGE_EVT*/ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* AVDT_DELAY_RPT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST }, /* ACP_CONNECT_EVT */ {BTA_AV_SIGNORE, BTA_AV_SIGNORE, BTA_AV_CLOSING_SST } }; /* type for state table */ typedef const UINT8 (*tBTA_AV_SST_TBL)[BTA_AV_NUM_COLS]; /* state table */ static const tBTA_AV_SST_TBL bta_av_sst_tbl[] = { bta_av_sst_init, bta_av_sst_incoming, bta_av_sst_opening, bta_av_sst_open, bta_av_sst_rcfg, bta_av_sst_closing }; #if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE) static char *bta_av_sst_code(UINT8 state); #endif /******************************************************************************* ** ** Function bta_av_is_rcfg_sst ** ** Description Check if stream state machine is in reconfig state. ** ** ** Returns TRUE if stream state machine is in reconfig state. ** *******************************************************************************/ BOOLEAN bta_av_is_rcfg_sst (tBTA_AV_SCB *p_scb) { BOOLEAN is_rcfg_sst = FALSE; if (p_scb != NULL) { if (p_scb->state == BTA_AV_RCFG_SST) is_rcfg_sst = TRUE; } return is_rcfg_sst; } /******************************************************************************* ** ** Function bta_av_ssm_execute ** ** Description Stream state machine event handling function for AV ** ** ** Returns void ** *******************************************************************************/ void bta_av_ssm_execute(tBTA_AV_SCB *p_scb, UINT16 event, tBTA_AV_DATA *p_data) { tBTA_AV_SST_TBL state_table; UINT8 action; int i, xx; if(p_scb == NULL) { /* this stream is not registered */ APPL_TRACE_EVENT0("AV channel not registered"); return; } /* In case incoming connection is for VDP, we need to swap scb. */ /* When ACP_CONNECT_EVT was received, we put first available scb to */ /* to Incoming state. Later, when STR_CONFIG_IND_EVT is coming, we */ /* know if it is A2DP or VDP. */ if ((p_scb->state == BTA_AV_INIT_SST) && (event == BTA_AV_STR_CONFIG_IND_EVT)) { for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) { if (bta_av_cb.p_scb[xx]) { if (bta_av_cb.p_scb[xx]->state == BTA_AV_INCOMING_SST) { bta_av_cb.p_scb[xx]->state = BTA_AV_INIT_SST; bta_av_cb.p_scb[xx]->coll_mask = 0; p_scb->state = BTA_AV_INCOMING_SST; break; } } } } #if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE) APPL_TRACE_EVENT5("AV Sevent(0x%x)=0x%x(%s) state=%d(%s)", p_scb->hndl, event, bta_av_evt_code(event), p_scb->state, bta_av_sst_code(p_scb->state)); #else APPL_TRACE_EVENT2("AV Sevent=0x%x state=%d", event, p_scb->state); #endif /* look up the state table for the current state */ state_table = bta_av_sst_tbl[p_scb->state]; event -= BTA_AV_FIRST_SSM_EVT; /* set next state */ p_scb->state = state_table[event][BTA_AV_SNEXT_STATE]; /* execute action functions */ for(i=0; i< BTA_AV_SACTIONS; i++) { if ((action = state_table[event][i]) != BTA_AV_SIGNORE) { (*p_scb->p_act_tbl[action])(p_scb, p_data); } else break; } } /******************************************************************************* ** ** Function bta_av_is_scb_opening ** ** Description Returns TRUE is scb is in opening state. ** ** ** Returns TRUE if scb is in opening state. ** *******************************************************************************/ BOOLEAN bta_av_is_scb_opening (tBTA_AV_SCB *p_scb) { BOOLEAN is_opening = FALSE; if (p_scb) { if (p_scb->state == BTA_AV_OPENING_SST) is_opening = TRUE; } return is_opening; } /******************************************************************************* ** ** Function bta_av_is_scb_incoming ** ** Description Returns TRUE is scb is in incoming state. ** ** ** Returns TRUE if scb is in incoming state. ** *******************************************************************************/ BOOLEAN bta_av_is_scb_incoming (tBTA_AV_SCB *p_scb) { BOOLEAN is_incoming = FALSE; if (p_scb) { if (p_scb->state == BTA_AV_INCOMING_SST) is_incoming = TRUE; } return is_incoming; } /******************************************************************************* ** ** Function bta_av_set_scb_sst_init ** ** Description Set SST state to INIT. ** Use this function to change SST outside of state machine. ** ** Returns None ** *******************************************************************************/ void bta_av_set_scb_sst_init (tBTA_AV_SCB *p_scb) { if (p_scb) { p_scb->state = BTA_AV_INIT_SST; } } /******************************************************************************* ** ** Function bta_av_is_scb_init ** ** Description Returns TRUE is scb is in init state. ** ** ** Returns TRUE if scb is in incoming state. ** *******************************************************************************/ BOOLEAN bta_av_is_scb_init (tBTA_AV_SCB *p_scb) { BOOLEAN is_init = FALSE; if (p_scb) { if (p_scb->state == BTA_AV_INIT_SST) is_init = TRUE; } return is_init; } /******************************************************************************* ** ** Function bta_av_set_scb_sst_incoming ** ** Description Set SST state to incoming. ** Use this function to change SST outside of state machine. ** ** Returns None ** *******************************************************************************/ void bta_av_set_scb_sst_incoming (tBTA_AV_SCB *p_scb) { if (p_scb) { p_scb->state = BTA_AV_INCOMING_SST; } } /***************************************************************************** ** Debug Functions *****************************************************************************/ #if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE) /******************************************************************************* ** ** Function bta_av_sst_code ** ** Description ** ** Returns char * ** *******************************************************************************/ static char *bta_av_sst_code(UINT8 state) { switch(state) { case BTA_AV_INIT_SST: return "INIT"; case BTA_AV_INCOMING_SST: return "INCOMING"; case BTA_AV_OPENING_SST: return "OPENING"; case BTA_AV_OPEN_SST: return "OPEN"; case BTA_AV_RCFG_SST: return "RCFG"; case BTA_AV_CLOSING_SST: return "CLOSING"; default: return "unknown"; } } #endif #endif /* BTA_AV_INCLUDED */