| /****************************************************************************** |
| * |
| * 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 <string.h> |
| |
| #include "bt_target.h" |
| #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_OFFLOAD_REQ, |
| BTA_AV_OFFLOAD_RSP, |
| 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_t 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}, |
| /* API_OFFLOAD_START_EVT */ {BTA_AV_OFFLOAD_REQ, BTA_AV_SIGNORE, |
| BTA_AV_INIT_SST}, |
| /* API_OFFLOAD_START_RSP_EVT */ {BTA_AV_OFFLOAD_RSP, BTA_AV_SIGNORE, |
| BTA_AV_INIT_SST}}; |
| |
| /* state table for incoming state */ |
| static const uint8_t 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_REJ, 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_DISCONNECT_REQ, |
| BTA_AV_CLOSING_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}, |
| /* API_OFFLOAD_START_EVT */ {BTA_AV_OFFLOAD_REQ, BTA_AV_SIGNORE, |
| BTA_AV_INCOMING_SST}, |
| /* API_OFFLOAD_START_RSP_EVT */ {BTA_AV_OFFLOAD_RSP, BTA_AV_SIGNORE, |
| BTA_AV_INCOMING_SST}}; |
| |
| /* state table for opening state */ |
| static const uint8_t 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}, |
| /* API_OFFLOAD_START_EVT */ {BTA_AV_OFFLOAD_REQ, BTA_AV_SIGNORE, |
| BTA_AV_OPENING_SST}, |
| /* API_OFFLOAD_START_RSP_EVT */ {BTA_AV_OFFLOAD_RSP, BTA_AV_SIGNORE, |
| BTA_AV_OPENING_SST}}; |
| |
| /* state table for open state */ |
| static const uint8_t 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}, |
| /* API_OFFLOAD_START_EVT */ {BTA_AV_OFFLOAD_REQ, BTA_AV_SIGNORE, |
| BTA_AV_OPEN_SST}, |
| /* API_OFFLOAD_START_RSP_EVT */ {BTA_AV_OFFLOAD_RSP, BTA_AV_SIGNORE, |
| BTA_AV_OPEN_SST}}; |
| |
| /* state table for reconfig state */ |
| static const uint8_t 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_RECONFIG, 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_CFM, BTA_AV_SUSPEND_CONT, |
| 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}, |
| /* API_OFFLOAD_START_EVT */ {BTA_AV_OFFLOAD_REQ, BTA_AV_SIGNORE, |
| BTA_AV_RCFG_SST}, |
| /* API_OFFLOAD_START_RSP_EVT */ {BTA_AV_OFFLOAD_RSP, BTA_AV_SIGNORE, |
| BTA_AV_RCFG_SST}}; |
| |
| /* state table for closing state */ |
| static const uint8_t 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}, |
| /* API_OFFLOAD_START_EVT */ {BTA_AV_OFFLOAD_REQ, BTA_AV_SIGNORE, |
| BTA_AV_CLOSING_SST}, |
| /* API_OFFLOAD_START_RSP_EVT */ {BTA_AV_OFFLOAD_RSP, BTA_AV_SIGNORE, |
| BTA_AV_CLOSING_SST}}; |
| |
| /* type for state table */ |
| typedef const uint8_t (*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}; |
| |
| static const char* bta_av_sst_code(uint8_t state); |
| |
| /******************************************************************************* |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| bool bta_av_is_rcfg_sst(tBTA_AV_SCB* p_scb) { |
| bool 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_t event, |
| tBTA_AV_DATA* p_data) { |
| tBTA_AV_SST_TBL state_table; |
| uint8_t action; |
| int i, xx; |
| |
| if (p_scb == NULL) { |
| /* this stream is not registered */ |
| APPL_TRACE_EVENT("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; |
| } |
| } |
| } |
| } |
| |
| APPL_TRACE_VERBOSE("%s: AV Sevent(0x%x)=0x%x(%s) state=%d(%s)", __func__, |
| p_scb->hndl, event, bta_av_evt_code(event), p_scb->state, |
| bta_av_sst_code(p_scb->state)); |
| |
| /* 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++) { |
| action = state_table[event][i]; |
| if (action != 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. |
| * |
| ******************************************************************************/ |
| bool bta_av_is_scb_opening(tBTA_AV_SCB* p_scb) { |
| bool 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. |
| * |
| ******************************************************************************/ |
| bool bta_av_is_scb_incoming(tBTA_AV_SCB* p_scb) { |
| bool 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. |
| * |
| ******************************************************************************/ |
| bool bta_av_is_scb_init(tBTA_AV_SCB* p_scb) { |
| bool 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 |
| ****************************************************************************/ |
| /******************************************************************************* |
| * |
| * Function bta_av_sst_code |
| * |
| * Description |
| * |
| * Returns char * |
| * |
| ******************************************************************************/ |
| static const char* bta_av_sst_code(uint8_t 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"; |
| } |
| } |
