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OVMS3-idf/components/bt/bluedroid/bta/av/bta_av_ssm.c
wangmengyang 9621904cdc component/bt: stop to initiate AVDTP connection on failure of A2DP service discovery 
In opening state of AVDTP connection, if SDP client fails to get valid A2DP service record\
from peer SDP server, then do not initiate AVDTP connection request
2018-09-10 03:35:58 +00:00

581 lines
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/******************************************************************************
*
* 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 "common/bt_target.h"
#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
#include <string.h>
#include "bta/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_OPEN_FAIL_SDP,
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_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_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_FREE_SDB, BTA_AV_OPEN_FAIL_SDP, BTA_AV_INIT_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_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;
}
}
}
}
#if (defined(BTA_AV_DEBUG) && BTA_AV_DEBUG == TRUE)
APPL_TRACE_VERBOSE("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_VERBOSE("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 */
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