diff options
Diffstat (limited to 'bta/av/bta_av_aact.c')
| -rw-r--r-- | bta/av/bta_av_aact.c | 2733 |
1 files changed, 2733 insertions, 0 deletions
diff --git a/bta/av/bta_av_aact.c b/bta/av/bta_av_aact.c new file mode 100644 index 0000000..741a5a0 --- /dev/null +++ b/bta/av/bta_av_aact.c @@ -0,0 +1,2733 @@ +/****************************************************************************** + * + * 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 file contains action functions for advanced audio/video stream + * state machine. these functions are shared by both audio and video + * streams. + * + ******************************************************************************/ + +#include "bt_target.h" +#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE) + +#include <string.h> +#include "bta_av_int.h" +#include "avdt_api.h" +#include "bd.h" +#include "utl.h" +#include "l2c_api.h" +#include "l2cdefs.h" +#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) +#include "bta_ar_api.h" +#endif + +/***************************************************************************** +** Constants +*****************************************************************************/ + +/* the delay time in milliseconds to start service discovery on AVRCP */ +#ifndef BTA_AV_RC_DISC_TIME_VAL +#define BTA_AV_RC_DISC_TIME_VAL 3500 +#endif + +/* the timer in milliseconds to guard against link busy and AVDT_CloseReq failed to be sent */ +#ifndef BTA_AV_CLOSE_REQ_TIME_VAL +#define BTA_AV_CLOSE_REQ_TIME_VAL 4000 +#endif + +/* number to retry on reconfigure failure - some headsets requirs this number to be more than 1 */ +#ifndef BTA_AV_RECONFIG_RETRY +#define BTA_AV_RECONFIG_RETRY 6 +#endif + +/* 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 +}; + + +/* the call out functions for audio stream */ +const tBTA_AV_CO_FUNCTS bta_av_a2d_cos = +{ + bta_av_co_audio_init, + bta_av_co_audio_disc_res, + bta_av_co_audio_getconfig, + bta_av_co_audio_setconfig, + bta_av_co_audio_open, + bta_av_co_audio_close, + bta_av_co_audio_start, + bta_av_co_audio_stop, + bta_av_co_audio_src_data_path, + bta_av_co_audio_delay +}; + +/* ssm action functions for audio stream */ +const tBTA_AV_SACT bta_av_a2d_action[] = +{ + bta_av_do_disc_a2d, /* BTA_AV_DO_DISC */ + bta_av_cleanup, /* BTA_AV_CLEANUP */ + bta_av_free_sdb, /* BTA_AV_FREE_SDB */ + bta_av_config_ind, /* BTA_AV_CONFIG_IND */ + bta_av_disconnect_req, /* BTA_AV_DISCONNECT_REQ */ + bta_av_security_req, /* BTA_AV_SECURITY_REQ */ + bta_av_security_rsp, /* BTA_AV_SECURITY_RSP */ + bta_av_setconfig_rsp, /* BTA_AV_SETCONFIG_RSP */ + bta_av_st_rc_timer, /* BTA_AV_ST_RC_TIMER */ + bta_av_str_opened, /* BTA_AV_STR_OPENED */ + bta_av_security_ind, /* BTA_AV_SECURITY_IND */ + bta_av_security_cfm, /* BTA_AV_SECURITY_CFM */ + bta_av_do_close, /* BTA_AV_DO_CLOSE */ + bta_av_connect_req, /* BTA_AV_CONNECT_REQ */ + bta_av_sdp_failed, /* BTA_AV_SDP_FAILED */ + bta_av_disc_results, /* BTA_AV_DISC_RESULTS */ + bta_av_disc_res_as_acp, /* BTA_AV_DISC_RES_AS_ACP */ + bta_av_open_failed, /* BTA_AV_OPEN_FAILED */ + bta_av_getcap_results, /* BTA_AV_GETCAP_RESULTS */ + bta_av_setconfig_rej, /* BTA_AV_SETCONFIG_REJ */ + bta_av_discover_req, /* BTA_AV_DISCOVER_REQ */ + bta_av_conn_failed, /* BTA_AV_CONN_FAILED */ + bta_av_do_start, /* BTA_AV_DO_START */ + bta_av_str_stopped, /* BTA_AV_STR_STOPPED */ + bta_av_reconfig, /* BTA_AV_RECONFIG */ + bta_av_data_path, /* BTA_AV_DATA_PATH */ + bta_av_start_ok, /* BTA_AV_START_OK */ + bta_av_start_failed, /* BTA_AV_START_FAILED */ + bta_av_str_closed, /* BTA_AV_STR_CLOSED */ + bta_av_clr_cong, /* BTA_AV_CLR_CONG */ + bta_av_suspend_cfm, /* BTA_AV_SUSPEND_CFM */ + bta_av_rcfg_str_ok, /* BTA_AV_RCFG_STR_OK */ + bta_av_rcfg_failed, /* BTA_AV_RCFG_FAILED */ + bta_av_rcfg_connect, /* BTA_AV_RCFG_CONNECT */ + bta_av_rcfg_discntd, /* BTA_AV_RCFG_DISCNTD */ + bta_av_suspend_cont, /* BTA_AV_SUSPEND_CONT */ + bta_av_rcfg_cfm, /* BTA_AV_RCFG_CFM */ + bta_av_rcfg_open, /* BTA_AV_RCFG_OPEN */ + bta_av_security_rej, /* BTA_AV_SECURITY_REJ */ + bta_av_open_rc, /* BTA_AV_OPEN_RC */ + bta_av_chk_2nd_start, /* BTA_AV_CHK_2ND_START */ + bta_av_save_caps, /* BTA_AV_SAVE_CAPS */ + bta_av_set_use_rc, /* BTA_AV_SET_USE_RC */ + bta_av_cco_close, /* BTA_AV_CCO_CLOSE */ + bta_av_switch_role, /* BTA_AV_SWITCH_ROLE */ + bta_av_role_res, /* BTA_AV_ROLE_RES */ + bta_av_delay_co, /* BTA_AV_DELAY_CO */ + bta_av_open_at_inc, /* BTA_AV_OPEN_AT_INC */ + NULL +}; + +/* these tables translate AVDT events to SSM events */ +static const UINT16 bta_av_stream_evt_ok[] = { + BTA_AV_STR_DISC_OK_EVT, /* AVDT_DISCOVER_CFM_EVT */ + BTA_AV_STR_GETCAP_OK_EVT, /* AVDT_GETCAP_CFM_EVT */ + BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_CFM_EVT */ + BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */ + BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */ + BTA_AV_STR_START_OK_EVT, /* AVDT_START_CFM_EVT */ + BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */ + BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */ + BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */ + BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */ + BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */ + BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */ + 0, /* AVDT_RECONFIG_IND_EVT */ + BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */ + BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */ + BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */ + BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */ + BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */ +#if (AVDT_REPORTING == TRUE) + BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */ + BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */ +#endif + BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */ + 0 /* AVDT_DELAY_REPORT_CFM_EVT */ +}; + +static const UINT16 bta_av_stream_evt_fail[] = { + BTA_AV_STR_DISC_FAIL_EVT, /* AVDT_DISCOVER_CFM_EVT */ + BTA_AV_STR_GETCAP_FAIL_EVT, /* AVDT_GETCAP_CFM_EVT */ + BTA_AV_STR_OPEN_FAIL_EVT, /* AVDT_OPEN_CFM_EVT */ + BTA_AV_STR_OPEN_OK_EVT, /* AVDT_OPEN_IND_EVT */ + BTA_AV_STR_CONFIG_IND_EVT, /* AVDT_CONFIG_IND_EVT */ + BTA_AV_STR_START_FAIL_EVT, /* AVDT_START_CFM_EVT */ + BTA_AV_STR_START_OK_EVT, /* AVDT_START_IND_EVT */ + BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_CFM_EVT */ + BTA_AV_STR_SUSPEND_CFM_EVT, /* AVDT_SUSPEND_IND_EVT */ + BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_CFM_EVT */ + BTA_AV_STR_CLOSE_EVT, /* AVDT_CLOSE_IND_EVT */ + BTA_AV_STR_RECONFIG_CFM_EVT, /* AVDT_RECONFIG_CFM_EVT */ + 0, /* AVDT_RECONFIG_IND_EVT */ + BTA_AV_STR_SECURITY_CFM_EVT, /* AVDT_SECURITY_CFM_EVT */ + BTA_AV_STR_SECURITY_IND_EVT, /* AVDT_SECURITY_IND_EVT */ + BTA_AV_STR_WRITE_CFM_EVT, /* AVDT_WRITE_CFM_EVT */ + BTA_AV_AVDT_CONNECT_EVT, /* AVDT_CONNECT_IND_EVT */ + BTA_AV_AVDT_DISCONNECT_EVT, /* AVDT_DISCONNECT_IND_EVT */ +#if (AVDT_REPORTING == TRUE) + BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_CONN_EVT */ + BTA_AV_AVDT_RPT_CONN_EVT, /* AVDT_REPORT_DISCONN_EVT */ +#endif + BTA_AV_AVDT_DELAY_RPT_EVT, /* AVDT_DELAY_REPORT_EVT */ + 0 /* AVDT_DELAY_REPORT_CFM_EVT */ +}; + +static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); +static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); +#if BTA_AV_NUM_STRS > 2 +static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); +#endif +#if BTA_AV_NUM_STRS > 3 +static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); +#endif +#if BTA_AV_NUM_STRS > 4 +static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); +#endif +#if BTA_AV_NUM_STRS > 5 +static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data); +#endif +/* the array of callback functions to receive events from AVDT control channel */ +tAVDT_CTRL_CBACK * const bta_av_dt_cback[] = +{ + bta_av_stream0_cback + ,bta_av_stream1_cback +#if BTA_AV_NUM_STRS > 2 + ,bta_av_stream2_cback +#endif +#if BTA_AV_NUM_STRS > 3 + ,bta_av_stream3_cback +#endif +#if BTA_AV_NUM_STRS > 4 + ,bta_av_stream4_cback +#endif +#if BTA_AV_NUM_STRS > 5 + ,bta_av_stream5_cback +#endif +}; + +/******************************************************************************* +** +** Function bta_av_save_addr +** +** Description copy the bd_addr and maybe reset the supported flags +** +** +** Returns void +** +*******************************************************************************/ +static void bta_av_save_addr(tBTA_AV_SCB *p_scb, const BD_ADDR b) +{ + APPL_TRACE_DEBUG2("bta_av_save_addr r:%d, s:%d", + p_scb->recfg_sup, p_scb->suspend_sup); + if(bdcmp(p_scb->peer_addr, b) != 0) + { + APPL_TRACE_ERROR0("reset flags"); + /* a new addr, reset the supported flags */ + p_scb->recfg_sup = TRUE; + p_scb->suspend_sup = TRUE; + } + + /* do this copy anyway, just in case the first addr matches + * the control block one by accident */ + bdcpy(p_scb->peer_addr, b); +} + +/******************************************************************************* +** +** Function bta_av_st_rc_timer +** +** Description start the AVRC timer if no RC connection & CT is supported & +** RC is used or +** as ACP (we do not really know if we want AVRC) +** +** Returns void +** +*******************************************************************************/ +void bta_av_st_rc_timer(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + + APPL_TRACE_DEBUG2("bta_av_st_rc_timer rc_handle:%d, use_rc: %d", + p_scb->rc_handle, p_scb->use_rc); + /* for outgoing RC connection as INT/CT */ + if( (p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) && + /*(bta_av_cb.features & BTA_AV_FEAT_RCCT) &&*/ + (p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP)) ) + { + if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) + bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); + else + p_scb->wait |= BTA_AV_WAIT_CHECK_RC; + } + +} + +/******************************************************************************* +** +** Function bta_av_next_getcap +** +** Description The function gets the capabilities of the next available +** stream found in the discovery results. +** +** Returns TRUE if we sent request to AVDT, FALSE otherwise. +** +*******************************************************************************/ +static BOOLEAN bta_av_next_getcap(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + int i; + tAVDT_GETCAP_REQ *p_req; + BOOLEAN sent_cmd = FALSE; + + for (i = p_scb->sep_info_idx; i < p_scb->num_seps; i++) + { + /* steam not in use, is a sink, and is the right media type (audio/video) */ + if ((p_scb->sep_info[i].in_use == FALSE) && + (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && + (p_scb->sep_info[i].media_type == p_scb->media_type)) + { + p_scb->sep_info_idx = i; + + /* we got a stream; get its capabilities */ + if (p_scb->p_cap == NULL) + { + p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG)); + } + if (p_scb->p_cap == NULL) + { + i = p_scb->num_seps; + break; + } + if (p_scb->avdt_version >= AVDT_VERSION_SYNC) + { + p_req = AVDT_GetAllCapReq; + } + else + { + p_req = AVDT_GetCapReq; + } + (*p_req)(p_scb->peer_addr, + p_scb->sep_info[i].seid, + p_scb->p_cap, bta_av_dt_cback[p_scb->hdi]); + sent_cmd = TRUE; + break; + } + } + + /* if no streams available then stream open fails */ + if (!sent_cmd) + { + bta_av_ssm_execute(p_scb, BTA_AV_STR_GETCAP_FAIL_EVT, p_data); + } + + return sent_cmd; + +} + +/******************************************************************************* +** +** Function bta_av_proc_stream_evt +** +** Description Utility function to compose stream events. +** +** Returns void +** +*******************************************************************************/ +void bta_av_proc_stream_evt(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data, int index) +{ + tBTA_AV_STR_MSG *p_msg; + UINT16 sec_len = 0; + tBTA_AV_SCB *p_scb = bta_av_cb.p_scb[index]; + int xx; + + if (p_data) + { + if (event == AVDT_SECURITY_IND_EVT) + { + sec_len = (p_data->security_ind.len < BTA_AV_SECURITY_MAX_LEN) ? + p_data->security_ind.len : BTA_AV_SECURITY_MAX_LEN; + } + else if (event == AVDT_SECURITY_CFM_EVT && p_data->hdr.err_code == 0) + { + sec_len = (p_data->security_cfm.len < BTA_AV_SECURITY_MAX_LEN) ? + p_data->security_cfm.len : BTA_AV_SECURITY_MAX_LEN; + } + } + + if (p_scb && (p_msg = (tBTA_AV_STR_MSG *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_STR_MSG) + sec_len))) != NULL) + { + + /* copy event data, bd addr, and handle to event message buffer */ + p_msg->hdr.offset = 0; + + if (bd_addr != NULL) + { + bdcpy(p_msg->bd_addr, bd_addr); + APPL_TRACE_DEBUG6(" bd_addr:%02x-%02x-%02x-%02x-%02x-%02x", + bd_addr[0], bd_addr[1], + bd_addr[2], bd_addr[3], + bd_addr[4], bd_addr[5]); + } + + if (p_data != NULL) + { + memcpy(&p_msg->msg, p_data, sizeof (tAVDT_CTRL)); + /* copy config params to event message buffer */ + switch (event) + { + case AVDT_CONFIG_IND_EVT: + /* We might have 2 SEP signallings(A2DP + VDP) with one peer device on one L2CAP. + * If we already have a signalling connection with the bd_addr and the streaming + * SST is at INIT state, change it to INCOMING state to handle the signalling + * from the 2nd SEP. */ + if ((bta_av_find_lcb(bd_addr, BTA_AV_LCB_FIND) != NULL) && (bta_av_is_scb_init(p_scb))) + { + bta_av_set_scb_sst_incoming (p_scb); + + /* When ACP_CONNECT_EVT was received, we put first available scb to incoming state. + * Later when we receive AVDT_CONFIG_IND_EVT, we use a new p_scb and set its state to + * incoming which we do it above. + * We also have to set the old p_scb state to init to be used later */ + for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) + { + if ((bta_av_cb.p_scb[xx]) && (xx != index)) + { + 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; + break; + } + } + } + } + + memcpy(&p_msg->cfg, p_data->config_ind.p_cfg, sizeof(tAVDT_CFG)); + break; + + case AVDT_SECURITY_IND_EVT: + p_msg->msg.security_ind.p_data = (UINT8 *) (p_msg + 1); + memcpy(p_msg->msg.security_ind.p_data, p_data->security_ind.p_data, sec_len); + break; + + case AVDT_SECURITY_CFM_EVT: + p_msg->msg.security_cfm.p_data = (UINT8 *) (p_msg + 1); + if (p_data->hdr.err_code == 0) + { + memcpy(p_msg->msg.security_cfm.p_data, p_data->security_cfm.p_data, sec_len); + } + break; + case AVDT_SUSPEND_IND_EVT: + p_msg->msg.hdr.err_code = 0; + break; + + default: + break; + } + } + else + p_msg->msg.hdr.err_code = 0; + + /* look up application event */ + if ((p_data == NULL) || (p_data->hdr.err_code == 0)) + { + p_msg->hdr.event = bta_av_stream_evt_ok[event]; + } + else + { + p_msg->hdr.event = bta_av_stream_evt_fail[event]; + } + + p_msg->initiator = FALSE; + if (event == AVDT_SUSPEND_CFM_EVT) + p_msg->initiator = TRUE; + + APPL_TRACE_EVENT1("hndl:x%x", p_scb->hndl); + p_msg->hdr.layer_specific = p_scb->hndl; + p_msg->handle = handle; + p_msg->avdt_event = event; + bta_sys_sendmsg(p_msg); + } + +/* coverity[var_deref_model]: Variable "p_data" tracked as NULL was passed to function "bta_av_conn_cback" that dereferences it. + * false-positive: bta_av_conn_cback only processes AVDT_CONNECT_IND_EVT and AVDT_DISCONNECT_IND_EVT event + * these 2 events always have associated p_data + */ + bta_av_conn_cback(handle, bd_addr, event, p_data); +} + +/******************************************************************************* +** +** Function bta_av_stream0_cback +** +** Description This is the AVDTP callback function for stream events. +** +** Returns void +** +*******************************************************************************/ +static void bta_av_stream0_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) +{ + APPL_TRACE_EVENT2("bta_av_stream0_cback avdt_handle: %d event=0x%x", handle, event); + bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 0); +} + +/******************************************************************************* +** +** Function bta_av_stream1_cback +** +** Description This is the AVDTP callback function for stream events. +** +** Returns void +** +*******************************************************************************/ +static void bta_av_stream1_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) +{ + APPL_TRACE_EVENT2("bta_av_stream1_cback avdt_handle: %d event=0x%x", handle, event); + bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 1); +} + +#if BTA_AV_NUM_STRS > 2 +/******************************************************************************* +** +** Function bta_av_stream2_cback +** +** Description This is the AVDTP callback function for stream events. +** +** Returns void +** +*******************************************************************************/ +static void bta_av_stream2_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) +{ + APPL_TRACE_EVENT2("bta_av_stream2_cback avdt_handle: %d event=0x%x", handle, event); + bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 2); +} +#endif + +#if BTA_AV_NUM_STRS > 3 +/******************************************************************************* +** +** Function bta_av_stream3_cback +** +** Description This is the AVDTP callback function for stream events. +** +** Returns void +** +*******************************************************************************/ +static void bta_av_stream3_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) +{ + APPL_TRACE_EVENT2("bta_av_stream3_cback avdt_handle: %d event=0x%x", handle, event); + bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 3); +} +#endif + +/******************************************************************************* +** +** Function bta_av_stream4_cback +** +** Description This is the AVDTP callback function for stream events. +** +** Returns void +** +*******************************************************************************/ +#if BTA_AV_NUM_STRS > 4 +static void bta_av_stream4_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) +{ + APPL_TRACE_EVENT2("bta_av_stream4_cback avdt_handle: %d event=0x%x", handle, event); + bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 4); +} +#endif + +/******************************************************************************* +** +** Function bta_av_stream5_cback +** +** Description This is the AVDTP callback function for stream events. +** +** Returns void +** +*******************************************************************************/ +#if BTA_AV_NUM_STRS > 5 +static void bta_av_stream5_cback(UINT8 handle, BD_ADDR bd_addr, UINT8 event, tAVDT_CTRL *p_data) +{ + APPL_TRACE_EVENT2("bta_av_stream5_cback avdt_handle: %d event=0x%x", handle, event); + bta_av_proc_stream_evt(handle, bd_addr, event, p_data, 5); +} +#endif + +/******************************************************************************* +** +** Function bta_av_a2d_sdp_cback +** +** Description A2DP service discovery callback. +** +** Returns void +** +*******************************************************************************/ +static void bta_av_a2d_sdp_cback(BOOLEAN found, tA2D_Service *p_service) +{ + tBTA_AV_SDP_RES *p_msg; + tBTA_AV_SCB *p_scb; + + if ((p_msg = (tBTA_AV_SDP_RES *) GKI_getbuf(sizeof(tBTA_AV_SDP_RES))) != NULL) + { + p_msg->hdr.event = (found) ? BTA_AV_SDP_DISC_OK_EVT : BTA_AV_SDP_DISC_FAIL_EVT; + + p_scb = bta_av_hndl_to_scb(bta_av_cb.handle); + if (p_scb) + { + if (found && (p_service != NULL)) + p_scb->avdt_version = p_service->avdt_version; + else + p_scb->avdt_version = 0x00; + + p_msg->hdr.layer_specific = bta_av_cb.handle; + bta_sys_sendmsg(p_msg); + } + else + { + APPL_TRACE_ERROR1 ("bta_av_a2d_sdp_cback, no scb found for handle(0x%x)", bta_av_cb.handle); + } + } +} + +/******************************************************************************* +** +** Function bta_av_adjust_seps_idx +** +** Description adjust the sep_idx +** +** Returns +** +*******************************************************************************/ +static void bta_av_adjust_seps_idx(tBTA_AV_SCB *p_scb) +{ + int xx; + + APPL_TRACE_DEBUG1("bta_av_adjust_seps_idx codec_type: %d", p_scb->codec_type); + for(xx=0; xx<BTA_AV_MAX_SEPS; xx++) + { + APPL_TRACE_DEBUG2("av_handle: %d codec_type: %d", + p_scb->seps[xx].av_handle, p_scb->seps[xx].codec_type); + if(p_scb->seps[xx].av_handle && p_scb->codec_type == p_scb->seps[xx].codec_type) + { + p_scb->sep_idx = xx; + p_scb->avdt_handle = p_scb->seps[xx].av_handle; + break; + } + } +} + +/******************************************************************************* +** +** Function bta_av_switch_role +** +** Description Switch role was not started and a timer was started. +** another attempt to switch role now - still opening. +** +** Returns void +** +*******************************************************************************/ +void bta_av_switch_role (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_RS_RES switch_res = BTA_AV_RS_NONE; + tBTA_AV_API_OPEN *p_buf = &p_scb->q_info.open; + + APPL_TRACE_DEBUG1("bta_av_switch_role wait:x%x", p_scb->wait); + if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START) + p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RETRY; + + /* clear the masks set when the timer is started */ + p_scb->wait &= ~(BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START); + + if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) + { + if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) + { + p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; + } + else + { + /* this should not happen in theory. Just in case... + * continue to do_disc_a2d */ + switch_res = BTA_AV_RS_DONE; + } + } + else + { + /* report failure on OPEN */ + switch_res = BTA_AV_RS_FAIL; + } + + if (switch_res != BTA_AV_RS_NONE) + { + if (bta_av_cb.rs_idx == (p_scb->hdi + 1)) + { + bta_av_cb.rs_idx = 0; + } + p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_RETRY; + p_scb->q_tag = 0; + p_buf->switch_res = switch_res; + bta_av_do_disc_a2d(p_scb, (tBTA_AV_DATA *)p_buf); + } +} + +/******************************************************************************* +** +** Function bta_av_role_res +** +** Description Handle the role changed event +** +** +** Returns void +** +*******************************************************************************/ +void bta_av_role_res (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + BOOLEAN initiator = FALSE; + tBTA_AV_START start; + tBTA_AV_OPEN av_open; + + APPL_TRACE_DEBUG3("bta_av_role_res q_tag:%d, wait:x%x, role:x%x", p_scb->q_tag, p_scb->wait, p_scb->role); + if (p_scb->role & BTA_AV_ROLE_START_INT) + initiator = TRUE; + + if (p_scb->q_tag == BTA_AV_Q_TAG_START) + { + if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_STARTED) + { + p_scb->role &= ~BTA_AV_ROLE_START_INT; + p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; + if (p_data->role_res.hci_status != HCI_SUCCESS) + { + bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); + /* start failed because of role switch. */ + start.chnl = p_scb->chnl; + start.status = BTA_AV_FAIL_ROLE; + start.hndl = p_scb->hndl; + start.initiator = initiator; + (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); + } + else + { + bta_av_start_ok(p_scb, p_data); + } + } + else if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_START) + p_scb->wait |= BTA_AV_WAIT_ROLE_SW_FAILED; + } + else if (p_scb->q_tag == BTA_AV_Q_TAG_OPEN) + { + if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_RES_OPEN) + { + p_scb->role &= ~BTA_AV_ROLE_START_INT; + p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; + + if (p_data->role_res.hci_status != HCI_SUCCESS) + { + /* Open failed because of role switch. */ + bdcpy(av_open.bd_addr, p_scb->peer_addr); + av_open.chnl = p_scb->chnl; + av_open.hndl = p_scb->hndl; + start.status = BTA_AV_FAIL_ROLE; + (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *)&av_open); + } + else + { + /* Continue av open process */ + p_scb->q_info.open.switch_res = BTA_AV_RS_DONE; + bta_av_do_disc_a2d (p_scb, (tBTA_AV_DATA *)&(p_scb->q_info.open)); + } + } + else + { + APPL_TRACE_WARNING2 ("Unexpected role switch event: q_tag = %d wait = %d", p_scb->q_tag, p_scb->wait); + } + } + + APPL_TRACE_DEBUG2("wait:x%x, role:x%x", p_scb->wait, p_scb->role); +} + +/******************************************************************************* +** +** Function bta_av_delay_co +** +** Description Call the delay call-out function to report the delay report +** from SNK +** +** Returns void +** +*******************************************************************************/ +void bta_av_delay_co (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + p_scb->p_cos->delay(p_scb->hndl, p_data->str_msg.msg.delay_rpt_cmd.delay); +} + +/******************************************************************************* +** +** Function bta_av_do_disc_a2d +** +** Description Do service discovery for A2DP. +** +** Returns void +** +*******************************************************************************/ +void bta_av_do_disc_a2d (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + BOOLEAN ok_continue = FALSE; + tA2D_SDP_DB_PARAMS db_params; + UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, + ATTR_ID_PROTOCOL_DESC_LIST, + ATTR_ID_BT_PROFILE_DESC_LIST}; + + APPL_TRACE_DEBUG3("bta_av_do_disc_a2d use_rc: %d rs:%d, oc:%d", + p_data->api_open.use_rc, p_data->api_open.switch_res, bta_av_cb.audio_open_cnt); + + memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN)); + + switch(p_data->api_open.switch_res) + { + case BTA_AV_RS_NONE: + if (bta_av_switch_if_needed(p_scb) || !bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) + { + /* waiting for role switch result. save the api to control block */ + memcpy(&p_scb->q_info.open, &p_data->api_open, sizeof(tBTA_AV_API_OPEN)); + p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; + p_scb->q_tag = BTA_AV_Q_TAG_OPEN; + } + else + { + ok_continue = TRUE; + } + break; + + case BTA_AV_RS_FAIL: + /* report a new failure event */ + p_scb->open_status = BTA_AV_FAIL_ROLE; + bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_FAIL_EVT, NULL); + break; + + case BTA_AV_RS_OK: + p_data = (tBTA_AV_DATA *)&p_scb->q_info.open; + /* continue to open if link role is ok */ + if (bta_av_link_role_ok(p_scb, A2D_SET_MULTL_BIT)) + { + ok_continue = TRUE; + } + else + { + p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_OPEN; + } + break; + + case BTA_AV_RS_DONE: + ok_continue = TRUE; + break; + } + + APPL_TRACE_DEBUG3("ok_continue: %d wait:x%x, q_tag: %d", ok_continue, p_scb->wait, p_scb->q_tag); + if (!ok_continue) + return; + + /* clear the role switch bits */ + p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; + + if (p_scb->wait & BTA_AV_WAIT_CHECK_RC) + { + p_scb->wait &= ~BTA_AV_WAIT_CHECK_RC; + bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); + } + + if (bta_av_cb.features & BTA_AV_FEAT_MASTER) + { + L2CA_SetDesireRole(L2CAP_ROLE_DISALLOW_SWITCH); + + if (bta_av_cb.audio_open_cnt == 1) + { + /* there's already an A2DP connection. do not allow switch */ + bta_sys_clear_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH); + } + } + /* store peer addr other parameters */ + bta_av_save_addr(p_scb, p_data->api_open.bd_addr); + p_scb->sec_mask = p_data->api_open.sec_mask; + p_scb->use_rc = p_data->api_open.use_rc; + + bta_sys_app_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); + + /* allocate discovery database */ + if (p_scb->p_disc_db == NULL) + { + p_scb->p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(BTA_AV_DISC_BUF_SIZE); + } + + /* only one A2D find service is active at a time */ + bta_av_cb.handle = p_scb->hndl; + + if(p_scb->p_disc_db) + { + /* set up parameters */ + db_params.db_len = BTA_AV_DISC_BUF_SIZE; + db_params.num_attr = 3; + db_params.p_db = p_scb->p_disc_db; + db_params.p_attrs = attr_list; + + if(A2D_FindService(UUID_SERVCLASS_AUDIO_SINK, p_scb->peer_addr, &db_params, + bta_av_a2d_sdp_cback) == A2D_SUCCESS) + { + return; + } + } + + /* when the code reaches here, either the DB is NULL + * or A2D_FindService is not successful */ + bta_av_a2d_sdp_cback(FALSE, NULL); +} + +/******************************************************************************* +** +** Function bta_av_cleanup +** +** Description cleanup AV stream control block. +** +** Returns void +** +*******************************************************************************/ +void bta_av_cleanup(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_CONN_CHG msg; + int xx; + UINT8 role = BTA_AV_ROLE_AD_INT; + + APPL_TRACE_DEBUG0("bta_av_cleanup"); + + /* free any buffers */ + utl_freebuf((void **) &p_scb->p_cap); + utl_freebuf((void **) &p_scb->p_disc_db); + p_scb->avdt_version = 0; + + /* initialize some control block variables */ + p_scb->open_status = BTA_AV_SUCCESS; + + /* if de-registering shut everything down */ + msg.hdr.layer_specific = p_scb->hndl; + p_scb->started = FALSE; + p_scb->cong = FALSE; + p_scb->role = role; + p_scb->cur_psc_mask = 0; + p_scb->wait = 0; + p_scb->num_disc_snks = 0; + bta_sys_stop_timer(&p_scb->timer); + if (p_scb->deregistring) + { + /* remove stream */ + for(xx=0; xx<BTA_AV_MAX_SEPS; xx++) + { + if(p_scb->seps[xx].av_handle) + AVDT_RemoveStream(p_scb->seps[xx].av_handle); + p_scb->seps[xx].av_handle = 0; + } + + bta_av_dereg_comp((tBTA_AV_DATA *) &msg); + } + else + { + /* report stream closed to main SM */ + msg.is_up = FALSE; + bdcpy(msg.peer_addr, p_scb->peer_addr); + bta_av_conn_chg((tBTA_AV_DATA *) &msg); + } +} + +/******************************************************************************* +** +** Function bta_av_free_sdb +** +** Description Free service discovery db buffer. +** +** Returns void +** +*******************************************************************************/ +void bta_av_free_sdb(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + utl_freebuf((void **) &p_scb->p_disc_db); +} + +/******************************************************************************* +** +** Function bta_av_config_ind +** +** Description Handle a stream configuration indication from the peer. +** +** Returns void +** +*******************************************************************************/ +void bta_av_config_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_CI_SETCONFIG setconfig; + tAVDT_SEP_INFO *p_info; + tAVDT_CFG *p_evt_cfg = &p_data->str_msg.cfg; + UINT8 psc_mask = (p_evt_cfg->psc_mask | p_scb->cfg.psc_mask); + + p_scb->avdt_label = p_data->str_msg.msg.hdr.label; + memcpy(p_scb->cfg.codec_info, p_evt_cfg->codec_info, AVDT_CODEC_SIZE); + p_scb->codec_type = p_evt_cfg->codec_info[BTA_AV_CODEC_TYPE_IDX]; + bta_av_save_addr(p_scb, p_data->str_msg.bd_addr); + + /* Clear collision mask */ + p_scb->coll_mask = 0; + bta_sys_stop_timer(&bta_av_cb.acp_sig_tmr); + + /* if no codec parameters in configuration, fail */ + if ((p_evt_cfg->num_codec == 0) || + /* or the peer requests for a service we do not support */ + ((psc_mask != p_scb->cfg.psc_mask) && + (psc_mask != (p_scb->cfg.psc_mask&~AVDT_PSC_DELAY_RPT))) ) + { + setconfig.hndl = p_scb->hndl; /* we may not need this */ + setconfig.err_code = AVDT_ERR_UNSUP_CFG; + bta_av_ssm_execute(p_scb, BTA_AV_CI_SETCONFIG_FAIL_EVT, (tBTA_AV_DATA *) &setconfig); + } + else + { + p_info = &p_scb->sep_info[0]; + p_info->in_use = 0; + p_info->media_type = p_scb->media_type; + p_info->seid = p_data->str_msg.msg.config_ind.int_seid; + p_info->tsep = AVDT_TSEP_SNK; + p_scb->role |= BTA_AV_ROLE_AD_ACP; + p_scb->cur_psc_mask = p_evt_cfg->psc_mask; + if (bta_av_cb.features & BTA_AV_FEAT_RCTG) + p_scb->use_rc = TRUE; + else + p_scb->use_rc = FALSE; + + p_scb->num_seps = 1; + p_scb->sep_info_idx = 0; + APPL_TRACE_DEBUG3("bta_av_config_ind: SEID: %d use_rc: %d cur_psc_mask:0x%x", p_info->seid, p_scb->use_rc, p_scb->cur_psc_mask); + + p_scb->p_cos->setcfg(p_scb->hndl, p_scb->codec_type, + p_evt_cfg->codec_info, + p_info->seid, + p_scb->peer_addr, + p_evt_cfg->num_protect, + p_evt_cfg->protect_info); + } +} + +/******************************************************************************* +** +** Function bta_av_disconnect_req +** +** Description Disconnect AVDTP connection. +** +** Returns void +** +*******************************************************************************/ +void bta_av_disconnect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_RCB *p_rcb; + APPL_TRACE_DEBUG1("bta_av_disconnect_req conn_lcb: 0x%x", bta_av_cb.conn_lcb); + + bta_sys_stop_timer(&bta_av_cb.sig_tmr); + bta_sys_stop_timer(&p_scb->timer); + if(bta_av_cb.conn_lcb) + { + p_rcb = bta_av_get_rcb_by_shdl((UINT8)(p_scb->hdi + 1)); + if (p_rcb) + bta_av_del_rc(p_rcb); + AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); + } + else + { + bta_av_ssm_execute(p_scb, BTA_AV_AVDT_DISCONNECT_EVT, NULL); + } +} + +/******************************************************************************* +** +** Function bta_av_security_req +** +** Description Send an AVDTP security request. +** +** Returns void +** +*******************************************************************************/ +void bta_av_security_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) + { + AVDT_SecurityReq(p_scb->avdt_handle, p_data->api_protect_req.p_data, + p_data->api_protect_req.len); + } +} + +/******************************************************************************* +** +** Function bta_av_security_rsp +** +** Description Send an AVDTP security response. +** +** Returns void +** +*******************************************************************************/ +void bta_av_security_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) + { + AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->api_protect_rsp.error_code, + p_data->api_protect_rsp.p_data, p_data->api_protect_rsp.len); + } + else + { + AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, + NULL, 0); + } +} + +/******************************************************************************* +** +** Function bta_av_setconfig_rsp +** +** Description setconfig is OK +** +** Returns void +** +*******************************************************************************/ +void bta_av_setconfig_rsp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + UINT8 num = p_data->ci_setconfig.num_seid + 1; + UINT8 *p_seid = p_data->ci_setconfig.p_seid; + int i; + + /* we like this codec_type. find the sep_idx */ + bta_av_adjust_seps_idx(p_scb); + APPL_TRACE_DEBUG2("bta_av_setconfig_rsp: sep_idx: %d cur_psc_mask:0x%x", p_scb->sep_idx, p_scb->cur_psc_mask); + AVDT_ConfigRsp(p_scb->avdt_handle, p_scb->avdt_label, p_data->ci_setconfig.err_code, + p_data->ci_setconfig.category); + + bta_sys_stop_timer(&bta_av_cb.sig_tmr); + + if(p_data->ci_setconfig.err_code == AVDT_SUCCESS) + { + p_scb->wait = BTA_AV_WAIT_ACP_CAPS_ON; + if(p_data->ci_setconfig.recfg_needed) + p_scb->role |= BTA_AV_ROLE_SUSPEND_OPT; + APPL_TRACE_ERROR3("bta_av_setconfig_rsp recfg_needed:%d role:x%x num:%d", + p_data->ci_setconfig.recfg_needed, p_scb->role, num); + /* callout module tells BTA the number of "good" SEPs and their SEIDs. + * getcap on these SEID */ + p_scb->num_seps = num; + + if (p_scb->cur_psc_mask & AVDT_PSC_DELAY_RPT) + p_scb->avdt_version = AVDT_VERSION_SYNC; + + + if (p_scb->codec_type == BTA_AV_CODEC_SBC || num > 1) + { + /* if SBC is used by the SNK as INT, discover req is not sent in bta_av_config_ind. + * call disc_res now */ + p_scb->p_cos->disc_res(p_scb->hndl, num, num, p_scb->peer_addr); + } + else + { + /* we do not know the peer device and it is using non-SBC codec + * we need to know all the SEPs on SNK */ + bta_av_discover_req(p_scb, NULL); + return; + } + + for (i = 1; i < num; i++) + { + APPL_TRACE_DEBUG2("sep_info[%d] SEID: %d", i, p_seid[i-1]); + /* initialize the sep_info[] to get capabilities */ + p_scb->sep_info[i].in_use = FALSE; + p_scb->sep_info[i].tsep = AVDT_TSEP_SNK; + p_scb->sep_info[i].media_type = p_scb->media_type; + p_scb->sep_info[i].seid = p_seid[i-1]; + } + bta_av_next_getcap(p_scb, p_data); + } +} + +/******************************************************************************* +** +** Function bta_av_str_opened +** +** Description Stream opened OK (incoming/outgoing). +** +** Returns void +** +*******************************************************************************/ +void bta_av_str_opened (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_CONN_CHG msg; + tBTA_AV_OPEN open; + UINT8 *p; + UINT16 mtu; + + msg.hdr.layer_specific = p_scb->hndl; + msg.is_up = TRUE; + bdcpy(msg.peer_addr, p_scb->peer_addr); + p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle); + bta_av_conn_chg((tBTA_AV_DATA *) &msg); + /* set the congestion flag, so AV would not send media packets by accident */ + p_scb->cong = TRUE; + + + p_scb->stream_mtu = p_data->str_msg.msg.open_ind.peer_mtu - AVDT_MEDIA_HDR_SIZE; + mtu = bta_av_chk_mtu(p_scb, p_scb->stream_mtu); + APPL_TRACE_DEBUG3("bta_av_str_opened l2c_cid: 0x%x stream_mtu: %d mtu: %d", + p_scb->l2c_cid, p_scb->stream_mtu, mtu); + if(mtu == 0 || mtu > p_scb->stream_mtu) + mtu = p_scb->stream_mtu; + + /* Set the media channel as medium priority */ + L2CA_SetTxPriority(p_scb->l2c_cid, L2CAP_CHNL_PRIORITY_MEDIUM); + L2CA_SetChnlFlushability (p_scb->l2c_cid, TRUE); + + bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); + memset(&p_scb->q_info, 0, sizeof(tBTA_AV_Q_INFO)); + + p_scb->l2c_bufs = 0; + p_scb->p_cos->open(p_scb->hndl, + p_scb->codec_type, p_scb->cfg.codec_info, mtu); + + { + /* TODO check if other audio channel is open. + * If yes, check if reconfig is needed + * Rigt now we do not do this kind of checking. + * BTA-AV is INT for 2nd audio connection. + * The application needs to make sure the current codec_info is proper. + * If one audio connection is open and another SNK attempts to connect to AV, + * the connection will be rejected. + */ + /* check if other audio channel is started. If yes, start */ + bdcpy(open.bd_addr, p_scb->peer_addr); + open.chnl = p_scb->chnl; + open.hndl = p_scb->hndl; + open.status = BTA_AV_SUCCESS; + open.starting = bta_av_chk_start(p_scb); + open.edr = 0; + if( NULL != (p = BTM_ReadRemoteFeatures(p_scb->peer_addr))) + { + if(HCI_EDR_ACL_2MPS_SUPPORTED(p)) + open.edr |= BTA_AV_EDR_2MBPS; + if(HCI_EDR_ACL_3MPS_SUPPORTED(p)) + open.edr |= BTA_AV_EDR_3MBPS; + } +#if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) + bta_ar_avdt_conn(BTA_ID_AV, open.bd_addr); +#endif + (*bta_av_cb.p_cback)(BTA_AV_OPEN_EVT, (tBTA_AV *) &open); + if(open.starting) + { + bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL); + } + } +} + +/******************************************************************************* +** +** Function bta_av_security_ind +** +** Description Handle an AVDTP security indication. +** +** Returns void +** +*******************************************************************************/ +void bta_av_security_ind (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_PROTECT_REQ protect_req; + + p_scb->avdt_label = p_data->str_msg.msg.hdr.label; + + if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) + { + protect_req.chnl = p_scb->chnl; + protect_req.hndl = p_scb->hndl; + /* + APPL_TRACE_EVENT1("sec ind handle: x%x", protect_req.hndl); + */ + protect_req.p_data = p_data->str_msg.msg.security_ind.p_data; + protect_req.len = p_data->str_msg.msg.security_ind.len; + + (*bta_av_cb.p_cback)(BTA_AV_PROTECT_REQ_EVT, (tBTA_AV *) &protect_req); + } + /* app doesn't support security indication; respond with failure */ + else + { + AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_NSC, NULL, 0); + } +} + +/******************************************************************************* +** +** Function bta_av_security_cfm +** +** Description Handle an AVDTP security confirm. +** +** Returns void +** +*******************************************************************************/ +void bta_av_security_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_PROTECT_RSP protect_rsp; + + if (bta_av_cb.features & BTA_AV_FEAT_PROTECT) + { + protect_rsp.chnl = p_scb->chnl; + protect_rsp.hndl = p_scb->hndl; + protect_rsp.p_data = p_data->str_msg.msg.security_cfm.p_data; + protect_rsp.len = p_data->str_msg.msg.security_cfm.len; + protect_rsp.err_code= p_data->str_msg.msg.hdr.err_code; + + (*bta_av_cb.p_cback)(BTA_AV_PROTECT_RSP_EVT, (tBTA_AV *) &protect_rsp); + } +} + +/******************************************************************************* +** +** Function bta_av_do_close +** +** Description Close stream. +** +** Returns void +** +*******************************************************************************/ +void bta_av_do_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + /* stop stream if started */ + if (p_scb->co_started) + { + bta_av_str_stopped(p_scb, NULL); + } + bta_sys_stop_timer(&bta_av_cb.sig_tmr); + + /* close stream */ + p_scb->started = FALSE; + + /* drop the buffers queued in L2CAP */ + L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); + + AVDT_CloseReq(p_scb->avdt_handle); + /* just in case that the link is congested, link is flow controled by peer or + * for whatever reason the the close request can not be sent in time. + * when this timer expires, AVDT_DisconnectReq will be called to disconnect the link + */ + bta_sys_start_timer(&p_scb->timer, + (UINT16)BTA_AV_API_CLOSE_EVT, + BTA_AV_CLOSE_REQ_TIME_VAL); + +} + +/******************************************************************************* +** +** Function bta_av_connect_req +** +** Description Connect AVDTP connection. +** +** Returns void +** +*******************************************************************************/ +void bta_av_connect_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + utl_freebuf((void **) &p_scb->p_disc_db); + + if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) + { + /* SNK initiated L2C connection while SRC was doing SDP. */ + /* Wait until timeout to check if SNK starts signalling. */ + APPL_TRACE_EVENT1("bta_av_connect_req: coll_mask = 0x%2X", p_scb->coll_mask); + return; + } + + AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); +} + +/******************************************************************************* +** +** Function bta_av_sdp_failed +** +** Description Service discovery failed. +** +** Returns void +** +*******************************************************************************/ +void bta_av_sdp_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + if (!p_scb->open_status) + p_scb->open_status = BTA_AV_FAIL_SDP; + + utl_freebuf((void **) &p_scb->p_disc_db); + bta_av_str_closed(p_scb, p_data); +} + +/******************************************************************************* +** +** Function bta_av_disc_results +** +** Description Handle the AVDTP discover results. Search through the +** results and find the first available stream, and get +** its capabilities. +** +** Returns void +** +*******************************************************************************/ +void bta_av_disc_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + UINT8 num_snks = 0, i; + + /* store number of stream endpoints returned */ + p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps; + + for (i = 0; i < p_scb->num_seps; i++) + { + /* steam not in use, is a sink, and is audio */ + if ((p_scb->sep_info[i].in_use == FALSE) && + (p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && + (p_scb->sep_info[i].media_type == p_scb->media_type)) + { + num_snks++; + } + } + + p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr); + p_scb->num_disc_snks = num_snks; + + /* if we got any */ + if (p_scb->num_seps > 0) + { + /* initialize index into discovery results */ + p_scb->sep_info_idx = 0; + + /* get the capabilities of the first available stream */ + bta_av_next_getcap(p_scb, p_data); + } + /* else we got discover response but with no streams; we're done */ + else + { + bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data); + } +} + +/******************************************************************************* +** +** Function bta_av_disc_res_as_acp +** +** Description Handle the AVDTP discover results. Search through the +** results and find the first available stream, and get +** its capabilities. +** +** Returns void +** +*******************************************************************************/ +void bta_av_disc_res_as_acp (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + UINT8 num_snks = 0, i; + + /* store number of stream endpoints returned */ + p_scb->num_seps = p_data->str_msg.msg.discover_cfm.num_seps; + + + + for (i = 0; i < p_scb->num_seps; i++) + { + /* steam is a sink, and is audio */ + if ((p_scb->sep_info[i].tsep == AVDT_TSEP_SNK) && + (p_scb->sep_info[i].media_type == p_scb->media_type)) + { + p_scb->sep_info[i].in_use = FALSE; + num_snks++; + } + } + + p_scb->p_cos->disc_res(p_scb->hndl, p_scb->num_seps, num_snks, p_scb->peer_addr); + p_scb->num_disc_snks = num_snks; + + /* if we got any */ + if (p_scb->num_seps > 0) + { + /* initialize index into discovery results */ + p_scb->sep_info_idx = 0; + + /* get the capabilities of the first available stream */ + bta_av_next_getcap(p_scb, p_data); + } + /* else we got discover response but with no streams; we're done */ + else + { + bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, p_data); + } +} + +/******************************************************************************* +** +** Function bta_av_save_caps +** +** Description report the SNK SEP capabilities to application +** +** Returns void +** +*******************************************************************************/ +void bta_av_save_caps(tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tAVDT_CFG cfg; + tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx]; + UINT8 old_wait = p_scb->wait; + BOOLEAN getcap_done = FALSE; + + APPL_TRACE_DEBUG3("bta_av_save_caps num_seps:%d sep_info_idx:%d wait:x%x", + p_scb->num_seps, p_scb->sep_info_idx, p_scb->wait); + memcpy(&cfg, p_scb->p_cap, sizeof(tAVDT_CFG)); + /* let application know the capability of the SNK */ + p_scb->p_cos->getcfg(p_scb->hndl, cfg.codec_info[BTA_AV_CODEC_TYPE_IDX], + cfg.codec_info, &p_scb->sep_info_idx, p_info->seid, + &cfg.num_protect, cfg.protect_info); + + p_scb->sep_info_idx++; + if(p_scb->num_seps > p_scb->sep_info_idx) + { + /* Some devices have seps at the end of the discover list, which is not */ + /* matching media type(video not audio). */ + /* In this case, we are done with getcap without sending another */ + /* request to AVDT. */ + if (!bta_av_next_getcap(p_scb, p_data)) + getcap_done = TRUE; + } + else + getcap_done = TRUE; + + if (getcap_done) + { + /* we are done getting capabilities. restore the p_cb->sep_info_idx */ + p_scb->sep_info_idx = 0; + p_scb->wait &= ~(BTA_AV_WAIT_ACP_CAPS_ON|BTA_AV_WAIT_ACP_CAPS_STARTED); + if (old_wait & BTA_AV_WAIT_ACP_CAPS_STARTED) + { + bta_av_start_ok (p_scb, NULL); + } + } +} + +/******************************************************************************* +** +** Function bta_av_set_use_rc +** +** Description set to use AVRC for this stream control block. +** +** Returns void +** +*******************************************************************************/ +void bta_av_set_use_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + p_scb->use_rc = TRUE; +} + +/******************************************************************************* +** +** Function bta_av_cco_close +** +** Description call close call-out function. +** +** Returns void +** +*******************************************************************************/ +void bta_av_cco_close (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + UINT16 mtu; + mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU); + + p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu); +} + +/******************************************************************************* +** +** Function bta_av_open_failed +** +** Description Failed to open an AVDT stream +** +** Returns void +** +*******************************************************************************/ +void bta_av_open_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + p_scb->open_status = BTA_AV_FAIL_STREAM; + bta_av_cco_close(p_scb, p_data); + AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); +} + +/******************************************************************************* +** +** Function bta_av_getcap_results +** +** Description Handle the AVDTP get capabilities results. Check the codec +** type and see if it matches ours. If it does not, get the +** capabilities of the next stream, if any. +** +** Returns void +** +*******************************************************************************/ +void bta_av_getcap_results (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tAVDT_CFG cfg; + UINT8 media_type; + tAVDT_SEP_INFO *p_info = &p_scb->sep_info[p_scb->sep_info_idx]; + + memcpy(&cfg, &p_scb->cfg, sizeof(tAVDT_CFG)); + cfg.num_codec = 1; + cfg.num_protect = p_scb->p_cap->num_protect; + memcpy(cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE); + memcpy(cfg.protect_info, p_scb->p_cap->protect_info, AVDT_PROTECT_SIZE); + media_type = p_scb->p_cap->codec_info[BTA_AV_MEDIA_TYPE_IDX] >> 4; + + APPL_TRACE_DEBUG1("num_codec %d", p_scb->p_cap->num_codec); + APPL_TRACE_DEBUG2("media type x%x, x%x", media_type, p_scb->media_type); +#if AVDT_MULTIPLEXING == TRUE + APPL_TRACE_DEBUG2("mux x%x, x%x", cfg.mux_mask, p_scb->p_cap->mux_mask); +#endif + + /* if codec present and we get a codec configuration */ + if ((p_scb->p_cap->num_codec != 0) && + (media_type == p_scb->media_type) && + (p_scb->p_cos->getcfg(p_scb->hndl, p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX], + cfg.codec_info, &p_scb->sep_info_idx, p_info->seid, + &cfg.num_protect, cfg.protect_info) == 0)) + { +#if AVDT_MULTIPLEXING == TRUE + cfg.mux_mask &= p_scb->p_cap->mux_mask; + APPL_TRACE_DEBUG1("mux_mask used x%x", cfg.mux_mask); +#endif + /* save copy of codec type and configuration */ + p_scb->codec_type = cfg.codec_info[BTA_AV_CODEC_TYPE_IDX]; + memcpy(&p_scb->cfg, &cfg, sizeof(tAVDT_CFG)); + bta_av_adjust_seps_idx(p_scb); + /* use only the services peer supports */ + cfg.psc_mask &= p_scb->p_cap->psc_mask; + p_scb->cur_psc_mask = cfg.psc_mask; + + /* open the stream */ + AVDT_OpenReq(p_scb->seps[p_scb->sep_idx].av_handle, p_scb->peer_addr, + p_scb->sep_info[p_scb->sep_info_idx].seid, &cfg); + + if (!bta_av_is_rcfg_sst(p_scb)) + { + /* free capabilities buffer */ + utl_freebuf((void **) &p_scb->p_cap); + } + } + else + { + /* try the next stream, if any */ + p_scb->sep_info_idx++; + bta_av_next_getcap(p_scb, p_data); + } + +} + +/******************************************************************************* +** +** Function bta_av_setconfig_rej +** +** Description Send AVDTP set config reject. +** +** Returns void +** +*******************************************************************************/ +void bta_av_setconfig_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_REJECT reject; + + APPL_TRACE_DEBUG0("bta_av_setconfig_rej"); + AVDT_ConfigRsp(p_data->str_msg.handle, p_data->str_msg.msg.hdr.label, AVDT_ERR_BAD_STATE, 0); + bdcpy(reject.bd_addr, p_data->str_msg.bd_addr); + reject.hndl = p_scb->hndl; + (*bta_av_cb.p_cback)(BTA_AV_REJECT_EVT, (tBTA_AV *) &reject); +} + +/******************************************************************************* +** +** Function bta_av_discover_req +** +** Description Send an AVDTP discover request to the peer. +** +** Returns void +** +*******************************************************************************/ +void bta_av_discover_req (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + /* send avdtp discover request */ + + AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]); +} + +/******************************************************************************* +** +** Function bta_av_conn_failed +** +** Description AVDTP connection failed. +** +** Returns void +** +*******************************************************************************/ +void bta_av_conn_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + p_scb->open_status = BTA_AV_FAIL_STREAM; + bta_av_str_closed(p_scb, p_data); +} + +/******************************************************************************* +** +** Function bta_av_do_start +** +** Description Start stream. +** +** Returns void +** +*******************************************************************************/ +void bta_av_do_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + UINT8 policy = HCI_ENABLE_SNIFF_MODE; + UINT8 cur_role; + + APPL_TRACE_DEBUG3("bta_av_do_start sco_occupied:%d, role:x%x, started:%d", bta_av_cb.sco_occupied, p_scb->role, p_scb->started); + if (bta_av_cb.sco_occupied) + { + bta_av_start_failed(p_scb, p_data); + return; + } + + /* disallow role switch during streaming, only if we are the master role + * i.e. allow role switch, if we are slave. + * It would not hurt us, if the peer device wants us to be master */ + if ((BTM_GetRole (p_scb->peer_addr, &cur_role) == BTM_SUCCESS) && + (cur_role == BTM_ROLE_MASTER) ) + { + policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; + } + + bta_sys_clear_policy(BTA_ID_AV, policy, p_scb->peer_addr); + + if ((p_scb->started == FALSE) && ((p_scb->role & BTA_AV_ROLE_START_INT) == 0)) + { + p_scb->role |= BTA_AV_ROLE_START_INT; + bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); + + AVDT_StartReq(&p_scb->avdt_handle, 1); + } + else + { + bta_av_start_ok(p_scb, NULL); + } + APPL_TRACE_DEBUG2("started %d role:x%x", p_scb->started, p_scb->role); +} + +/******************************************************************************* +** +** Function bta_av_str_stopped +** +** Description Stream stopped. +** +** Returns void +** +*******************************************************************************/ +void bta_av_str_stopped (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_SUSPEND suspend_rsp; + UINT8 start = p_scb->started; + BOOLEAN sus_evt = TRUE; + BT_HDR *p_buf; + UINT8 policy = HCI_ENABLE_SNIFF_MODE; + + APPL_TRACE_ERROR2("bta_av_str_stopped:audio_open_cnt=%d, p_data %x", + bta_av_cb.audio_open_cnt, p_data); + + bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); + if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) + policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; + bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); + + if(p_scb->co_started) + { + bta_av_stream_chg(p_scb, FALSE); + p_scb->co_started = FALSE; + + p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); + L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO); + } + + /* if q_info.a2d is not empty, drop it now */ + if(BTA_AV_CHNL_AUDIO == p_scb->chnl) + { + while((p_buf = (BT_HDR*)GKI_dequeue (&p_scb->q_info.a2d)) != NULL) + GKI_freebuf(p_buf); + + /* drop the audio buffers queued in L2CAP */ + if(p_data && p_data->api_stop.flush) + L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); + } + + suspend_rsp.chnl = p_scb->chnl; + suspend_rsp.hndl = p_scb->hndl; + + if (p_data && p_data->api_stop.suspend) + { + APPL_TRACE_DEBUG2("suspending: %d, sup:%d", start, p_scb->suspend_sup); + if ((start) && (p_scb->suspend_sup)) + { + sus_evt = FALSE; + p_scb->l2c_bufs = 0; + AVDT_SuspendReq(&p_scb->avdt_handle, 1); + } + + if(sus_evt) + { + suspend_rsp.status = BTA_AV_SUCCESS; + suspend_rsp.initiator = TRUE; + (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp); + } + } + else + { + suspend_rsp.status = BTA_AV_SUCCESS; + suspend_rsp.initiator = TRUE; + APPL_TRACE_EVENT1("bta_av_str_stopped status %d", suspend_rsp.status); + + (*bta_av_cb.p_cback)(BTA_AV_STOP_EVT, (tBTA_AV *) &suspend_rsp); + } +} + +/******************************************************************************* +** +** Function bta_av_reconfig +** +** Description process the reconfigure request. +** save the parameter in control block and +** suspend, reconfigure or close the stream +** +** Returns void +** +*******************************************************************************/ +void bta_av_reconfig (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tAVDT_CFG *p_cfg; + tBTA_AV_API_STOP stop; + tBTA_AV_RECONFIG evt; + tBTA_AV_API_RCFG *p_rcfg = &p_data->api_reconfig; + + APPL_TRACE_DEBUG4("bta_av_reconfig r:%d, s:%d idx: %d (o:%d)", + p_scb->recfg_sup, p_scb->suspend_sup, + p_scb->rcfg_idx, p_scb->sep_info_idx); + + p_scb->num_recfg = 0; + /* store the new configuration in control block */ + if (p_scb->p_cap == NULL) + { + p_scb->p_cap = (tAVDT_CFG *) GKI_getbuf(sizeof(tAVDT_CFG)); + } + if((p_cfg = p_scb->p_cap) == NULL) + { + /* report failure */ + evt.status = BTA_AV_FAIL_RESOURCES; + evt.chnl = p_scb->chnl; + evt.hndl = p_scb->hndl; + (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); + + /* this event is not possible in this state. + * use it to bring the SSM back to open state */ + bta_av_ssm_execute(p_scb, BTA_AV_SDP_DISC_OK_EVT, NULL); + return; + } + + /*if(bta_av_cb.features & BTA_AV_FEAT_RCCT)*/ + bta_sys_stop_timer(&p_scb->timer); + + memcpy(p_cfg, &p_scb->cfg, sizeof(tAVDT_CFG)); + p_cfg->num_protect = p_rcfg->num_protect; + memcpy(p_cfg->codec_info, p_rcfg->codec_info, AVDT_CODEC_SIZE); + memcpy(p_cfg->protect_info, p_rcfg->p_protect_info, p_rcfg->num_protect); + p_scb->rcfg_idx = p_rcfg->sep_info_idx; + p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; + + /* if the requested index differs from the current one, we can only close/open */ + if ((p_scb->rcfg_idx == p_scb->sep_info_idx) && + (p_rcfg->suspend)&& (p_scb->recfg_sup) && (p_scb->suspend_sup)) + { + if(p_scb->started) + { + stop.flush = FALSE; + stop.suspend = TRUE; + bta_av_str_stopped(p_scb, (tBTA_AV_DATA *)&stop); + } + else + { + APPL_TRACE_DEBUG0("Reconfig"); + AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap); + p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; + } + } + else + { + /* close the stream */ + APPL_TRACE_DEBUG1("close/open num_protect: %d", p_cfg->num_protect); + if(p_scb->started) + bta_av_str_stopped(p_scb, NULL); + p_scb->started = FALSE; + + /* drop the buffers queued in L2CAP */ + L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); + + AVDT_CloseReq(p_scb->avdt_handle); + + } +} + +/******************************************************************************* +** +** Function bta_av_data_path +** +** Description Handle stream data path. +** +** Returns void +** +*******************************************************************************/ +void bta_av_data_path (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + BT_HDR *p_buf; + UINT32 data_len; + UINT32 timestamp; + BOOLEAN new_buf = FALSE; + UINT8 m_pt = 0x60 | p_scb->codec_type; + + if (!p_scb->cong) + { + /* + APPL_TRACE_ERROR1("q: %d", p_scb->l2c_bufs); + */ + //Always get the current number of bufs que'd up + p_scb->l2c_bufs = (UINT8)L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_GET); + + p_buf = (BT_HDR *)GKI_dequeue (&p_scb->q_info.a2d); + if(p_buf) + { + /* use q_info.a2d data, read the timestamp */ + timestamp = *(UINT32 *)(p_buf + 1); + } + else + { + new_buf = TRUE; + /* q_info.a2d empty, call co_data, dup data to other channels */ + p_buf = (BT_HDR *)p_scb->p_cos->data(p_scb->codec_type, &data_len, + ×tamp); + + if (p_buf) + { + /* use the offset area for the time stamp */ + *(UINT32 *)(p_buf + 1) = timestamp; + + /* dup the data to other channels */ + bta_av_dup_audio_buf(p_scb, p_buf); + } + } + + if(p_buf) + { + if(p_scb->l2c_bufs < (BTA_AV_QUEUE_DATA_CHK_NUM)) + { + /* there's a buffer, just queue it to L2CAP */ + /* There's no need to increment it here, it is always read from L2CAP see above */ + /* p_scb->l2c_bufs++; */ + /* + APPL_TRACE_ERROR1("qw: %d", p_scb->l2c_bufs); + */ + AVDT_WriteReq(p_scb->avdt_handle, p_buf, timestamp, m_pt); + p_scb->cong = TRUE; + } + else + { + /* there's a buffer, but L2CAP does not seem to be moving data */ + if(new_buf) + { + /* just got this buffer from co_data, + * put it in queue */ + GKI_enqueue(&p_scb->q_info.a2d, p_buf); + } + else + { + /* just dequeue it from the q_info.a2d */ + if(p_scb->q_info.a2d.count < 3) + { + /* put it back to the queue */ + GKI_enqueue_head (&p_scb->q_info.a2d, p_buf); + } + else + { + /* too many buffers in q_info.a2d, drop it. */ + bta_av_co_audio_drop(p_scb->hndl); + GKI_freebuf(p_buf); + } + } + } + } + } +} + +/******************************************************************************* +** +** Function bta_av_start_ok +** +** Description Stream started. +** +** Returns void +** +*******************************************************************************/ +void bta_av_start_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_START start; + tBTA_AV_API_STOP stop; + BOOLEAN initiator = FALSE; + BOOLEAN suspend = FALSE; + UINT16 flush_to; + UINT8 new_role = p_scb->role; + BT_HDR hdr; + + APPL_TRACE_DEBUG2("bta_av_start_ok wait:x%x, role:x%x", p_scb->wait, p_scb->role); + + p_scb->started = TRUE; + if (p_scb->sco_suspend) + { + p_scb->sco_suspend = FALSE; + } + + if (new_role & BTA_AV_ROLE_START_INT) + initiator = TRUE; + + if (p_scb->wait & BTA_AV_WAIT_ROLE_SW_FAILED) + { + /* role switch has failed */ + p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_FAILED; + p_data = (tBTA_AV_DATA *)&hdr; + hdr.offset = BTA_AV_RS_FAIL; + } + APPL_TRACE_DEBUG1("wait:x%x", p_scb->wait); + + if (p_data && (p_data->hdr.offset != BTA_AV_RS_NONE)) + { + p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; + if (p_data->hdr.offset == BTA_AV_RS_FAIL) + { + bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); + start.chnl = p_scb->chnl; + start.status = BTA_AV_FAIL_ROLE; + start.hndl = p_scb->hndl; + start.initiator = initiator; + (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); + return; + } + } + + if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT)) + p_scb->q_tag = BTA_AV_Q_TAG_START; + else + { + /* The wait flag may be set here while we are already master on the link */ + /* this could happen if a role switch complete event occurred during reconfig */ + /* if we are now master on the link, there is no need to wait for the role switch, */ + /* complete anymore so we can clear the wait for role switch flag */ + p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; + } + + if (p_scb->wait & (BTA_AV_WAIT_ROLE_SW_RES_OPEN|BTA_AV_WAIT_ROLE_SW_RES_START)) + { + p_scb->wait |= BTA_AV_WAIT_ROLE_SW_STARTED; + p_scb->q_tag = BTA_AV_Q_TAG_START; + } + + if (p_scb->wait & BTA_AV_WAIT_ACP_CAPS_ON) + { + p_scb->wait |= BTA_AV_WAIT_ACP_CAPS_STARTED; + } + + if (p_scb->wait) + { + APPL_TRACE_DEBUG2("wait:x%x q_tag:%d- not started", p_scb->wait, p_scb->q_tag); + return; + } + + /* tell role manager to check M/S role */ + bta_sys_conn_open(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); + + bta_sys_busy(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); + + if(p_scb->media_type == AVDT_MEDIA_AUDIO) + { + /* in normal logic, conns should be bta_av_cb.audio_count - 1, + * However, bta_av_stream_chg is not called to increase bta_av_cb.audio_count yet. + * If the code were to be re-arranged for some reasons, this number may need to be changed + */ + p_scb->co_started = bta_av_cb.audio_open_cnt; + flush_to = p_bta_av_cfg->p_audio_flush_to[p_scb->co_started - 1]; + } + else + { + flush_to = p_bta_av_cfg->video_flush_to; + } + L2CA_SetFlushTimeout(p_scb->peer_addr, flush_to ); + + /* clear the congestion flag */ + p_scb->cong = FALSE; + + if (new_role & BTA_AV_ROLE_START_INT) + { + new_role &= ~BTA_AV_ROLE_START_INT; + } + else if ((new_role & BTA_AV_ROLE_AD_ACP) && (new_role & BTA_AV_ROLE_SUSPEND_OPT)) + { + suspend = TRUE; + } + + if (!suspend) + { + p_scb->q_tag = BTA_AV_Q_TAG_STREAM; + bta_av_stream_chg(p_scb, TRUE); + } + + { + p_scb->role = new_role; + p_scb->role &= ~BTA_AV_ROLE_AD_ACP; + p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT; + + p_scb->p_cos->start(p_scb->hndl, p_scb->codec_type); + p_scb->co_started = TRUE; + + APPL_TRACE_DEBUG3("bta_av_start_ok suspending: %d, role:x%x, init %d", + suspend, p_scb->role, initiator); + + start.suspending = suspend; + start.initiator = initiator; + start.chnl = p_scb->chnl; + start.status = BTA_AV_SUCCESS; + start.hndl = p_scb->hndl; + (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); + + if(suspend) + { + p_scb->role |= BTA_AV_ROLE_SUSPEND; + p_scb->cong = TRUE; /* do not allow the media data to go through */ + /* do not duplicate the media packets to this channel */ + p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); + p_scb->co_started = FALSE; + stop.flush = FALSE; + stop.suspend = TRUE; + bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA *)&stop); + } + } +} + +/******************************************************************************* +** +** Function bta_av_start_failed +** +** Description Stream start failed. +** +** Returns void +** +*******************************************************************************/ +void bta_av_start_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_START start; + + if(p_scb->started == FALSE && p_scb->co_started == FALSE) + { + /* if start failed, clear role */ + p_scb->role &= ~BTA_AV_ROLE_START_INT; + + bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); + start.chnl = p_scb->chnl; + start.status = BTA_AV_FAIL; + start.initiator = TRUE; + start.hndl = p_scb->hndl; + (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); + } + + bta_sys_set_policy(BTA_ID_AV, (HCI_ENABLE_SNIFF_MODE|HCI_ENABLE_MASTER_SLAVE_SWITCH), p_scb->peer_addr); + p_scb->sco_suspend = FALSE; +} + +/******************************************************************************* +** +** Function bta_av_str_closed +** +** Description Stream closed. +** +** Returns void +** +*******************************************************************************/ +void bta_av_str_closed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV data; + tBTA_AV_EVT event; + UINT16 mtu; + UINT8 policy = HCI_ENABLE_SNIFF_MODE; + + if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) + policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; + bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); + if (bta_av_cb.audio_open_cnt <= 1) + { + /* last connection - restore the allow switch flag */ + L2CA_SetDesireRole(L2CAP_ROLE_ALLOW_SWITCH); + } + + if (p_scb->open_status) + { + /* must be failure when opening the stream */ + bdcpy(data.open.bd_addr, p_scb->peer_addr); + data.open.status = p_scb->open_status; + data.open.chnl = p_scb->chnl; + data.open.hndl = p_scb->hndl; + event = BTA_AV_OPEN_EVT; + p_scb->open_status = BTA_AV_SUCCESS; + + bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); + bta_av_cleanup(p_scb, p_data); + (*bta_av_cb.p_cback)(event, &data); + } + else + { + /* do stop if we were started */ + if (p_scb->co_started) + { + bta_av_str_stopped(p_scb, NULL); + } + + /* Update common mtu shared by remaining connectons */ + mtu = bta_av_chk_mtu(p_scb, BTA_AV_MAX_A2DP_MTU); + + { + p_scb->p_cos->close(p_scb->hndl, p_scb->codec_type, mtu); + data.close.chnl = p_scb->chnl; + data.close.hndl = p_scb->hndl; + event = BTA_AV_CLOSE_EVT; + + bta_sys_conn_close(BTA_ID_AV, p_scb->app_id, p_scb->peer_addr); + bta_av_cleanup(p_scb, p_data); + (*bta_av_cb.p_cback)(event, &data); + } + } +} + +/******************************************************************************* +** +** Function bta_av_clr_cong +** +** Description Clear stream congestion flag. +** +** Returns void +** +*******************************************************************************/ +void bta_av_clr_cong (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + if(p_scb->co_started) + p_scb->cong = FALSE; +} + +/******************************************************************************* +** +** Function bta_av_suspend_cfm +** +** Description process the suspend response +** +** Returns void +** +*******************************************************************************/ +void bta_av_suspend_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_SUSPEND suspend_rsp; + UINT8 err_code = p_data->str_msg.msg.hdr.err_code; + UINT8 policy = HCI_ENABLE_SNIFF_MODE; + + APPL_TRACE_DEBUG2 ("bta_av_suspend_cfm:audio_open_cnt = %d, err_code = %d", + bta_av_cb.audio_open_cnt, err_code); + + suspend_rsp.status = BTA_AV_SUCCESS; + if(err_code) + { + p_scb->suspend_sup = FALSE; + suspend_rsp.status = BTA_AV_FAIL; + + APPL_TRACE_ERROR0 ("bta_av_suspend_cfm: suspend failed, closing connection"); + + /* SUSPEND failed. Close connection. */ + bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL); + } + else + { + /* only set started to FALSE when suspend is successful */ + p_scb->started = FALSE; + } + + if(p_scb->role & BTA_AV_ROLE_SUSPEND) + { + p_scb->role &= ~BTA_AV_ROLE_SUSPEND; + p_scb->cong = FALSE; + } + + bta_sys_idle(BTA_ID_AV, bta_av_cb.audio_open_cnt, p_scb->peer_addr); + if ((bta_av_cb.features & BTA_AV_FEAT_MASTER) == 0 || bta_av_cb.audio_open_cnt == 1) + policy |= HCI_ENABLE_MASTER_SLAVE_SWITCH; + bta_sys_set_policy(BTA_ID_AV, policy, p_scb->peer_addr); + + /* in case that we received suspend_ind, we may need to call co_stop here */ + if(p_scb->co_started) + { + bta_av_stream_chg(p_scb, FALSE); + + { + p_scb->co_started = FALSE; + p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); + } + L2CA_SetFlushTimeout(p_scb->peer_addr, L2CAP_DEFAULT_FLUSH_TO); + } + + { + suspend_rsp.chnl = p_scb->chnl; + suspend_rsp.hndl = p_scb->hndl; + suspend_rsp.initiator = p_data->str_msg.initiator; + (*bta_av_cb.p_cback)(BTA_AV_SUSPEND_EVT, (tBTA_AV *) &suspend_rsp); + } +} + +/******************************************************************************* +** +** Function bta_av_rcfg_str_ok +** +** Description report reconfigure successful +** +** Returns void +** +*******************************************************************************/ +void bta_av_rcfg_str_ok (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_RECONFIG evt; + + p_scb->l2c_cid = AVDT_GetL2CapChannel(p_scb->avdt_handle); + APPL_TRACE_DEBUG1("bta_av_rcfg_str_ok: l2c_cid: %d", p_scb->l2c_cid); + + /* rc listen */ + bta_av_st_rc_timer(p_scb, NULL); + utl_freebuf((void **)&p_scb->p_cap); + + /* No need to keep the role bits once reconfig is done. */ + p_scb->role &= ~BTA_AV_ROLE_AD_ACP; + p_scb->role &= ~BTA_AV_ROLE_SUSPEND_OPT; + p_scb->role &= ~BTA_AV_ROLE_START_INT; + + { + /* reconfigure success */ + evt.status = BTA_AV_SUCCESS; + evt.chnl = p_scb->chnl; + evt.hndl = p_scb->hndl; + (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); + } +} + +/******************************************************************************* +** +** Function bta_av_rcfg_failed +** +** Description process reconfigure failed +** +** Returns void +** +*******************************************************************************/ +void bta_av_rcfg_failed (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_RECONFIG evt; + + APPL_TRACE_DEBUG2("bta_av_rcfg_failed num_recfg: %d, conn_lcb:0x%x", + p_scb->num_recfg, bta_av_cb.conn_lcb); + if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) + { + bta_av_cco_close(p_scb, p_data); + /* report failure */ + evt.status = BTA_AV_FAIL_STREAM; + evt.chnl = p_scb->chnl; + evt.hndl = p_scb->hndl; + (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); + /* go to closing state */ + bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, NULL); + } + else + { + /* open failed. try again */ + p_scb->num_recfg++; + if(bta_av_cb.conn_lcb) + { + AVDT_DisconnectReq(p_scb->peer_addr, bta_av_dt_cback[p_scb->hdi]); + } + else + { + bta_av_connect_req(p_scb, NULL); + } + } +} + +/******************************************************************************* +** +** Function bta_av_rcfg_connect +** +** Description stream closed. reconnect the stream +** +** Returns void +** +*******************************************************************************/ +void bta_av_rcfg_connect (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + p_scb->cong = FALSE; + p_scb->num_recfg++; + APPL_TRACE_DEBUG1("bta_av_rcfg_connect num_recfg: %d", p_scb->num_recfg); + if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) + { + /* let bta_av_rcfg_failed report fail */ + bta_av_rcfg_failed(p_scb, NULL); + } + else + AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); +} + +/******************************************************************************* +** +** Function bta_av_rcfg_discntd +** +** Description AVDT disconnected. reconnect the stream +** +** Returns void +** +*******************************************************************************/ +void bta_av_rcfg_discntd (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_RECONFIG evt; + + APPL_TRACE_DEBUG1("bta_av_rcfg_discntd num_recfg: %d", p_scb->num_recfg); + p_scb->num_recfg++; + if(p_scb->num_recfg > BTA_AV_RECONFIG_RETRY) + { + /* report failure */ + evt.status = BTA_AV_FAIL_STREAM; + evt.chnl = p_scb->chnl; + evt.hndl = p_scb->hndl; + (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); + /* report close event & go to init state */ + bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL); + } + else + AVDT_ConnectReq(p_scb->peer_addr, p_scb->sec_mask, bta_av_dt_cback[p_scb->hdi]); +} + +/******************************************************************************* +** +** Function bta_av_suspend_cont +** +** Description received the suspend response. +** continue to reconfigure the stream +** +** Returns void +** +*******************************************************************************/ +void bta_av_suspend_cont (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + UINT8 err_code = p_data->str_msg.msg.hdr.err_code; + tBTA_AV_RECONFIG evt; + + p_scb->started = FALSE; + p_scb->cong = FALSE; + if(err_code) + { + if(AVDT_ERR_CONNECT == err_code) + { + /* report failure */ + evt.status = BTA_AV_FAIL; + (*bta_av_cb.p_cback)(BTA_AV_RECONFIG_EVT, (tBTA_AV *)&evt); + bta_av_ssm_execute(p_scb, BTA_AV_STR_DISC_FAIL_EVT, NULL); + } + else + { + APPL_TRACE_ERROR0("suspend rejected, try close"); + p_scb->suspend_sup = FALSE; + + /* drop the buffers queued in L2CAP */ + L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); + + AVDT_CloseReq(p_scb->avdt_handle); + } + } + else + { + APPL_TRACE_DEBUG0("bta_av_suspend_cont calling AVDT_ReconfigReq"); + /* reconfig the stream */ + + AVDT_ReconfigReq(p_scb->avdt_handle, p_scb->p_cap); + p_scb->p_cap->psc_mask = p_scb->cur_psc_mask; + } +} + +/******************************************************************************* +** +** Function bta_av_rcfg_cfm +** +** Description if reconfigure is successful, report the event +** otherwise, close the stream. +** +** Returns void +** +*******************************************************************************/ +void bta_av_rcfg_cfm (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + UINT8 err_code = p_data->str_msg.msg.hdr.err_code; + + /* + APPL_TRACE_DEBUG0("bta_av_rcfg_cfm"); + */ + if(err_code) + { + APPL_TRACE_ERROR0("reconfig rejected, try close"); + p_scb->recfg_sup = FALSE; + /* started flag is FALSE when reconfigure command is sent */ + /* drop the buffers queued in L2CAP */ + L2CA_FlushChannel (p_scb->l2c_cid, L2CAP_FLUSH_CHANS_ALL); + AVDT_CloseReq(p_scb->avdt_handle); + } + else + { + /* take the SSM back to OPEN state */ + bta_av_ssm_execute(p_scb, BTA_AV_STR_OPEN_OK_EVT, NULL); + } +} + +/******************************************************************************* +** +** Function bta_av_rcfg_open +** +** Description AVDT is connected. open the stream with the new configuration +** +** Returns void +** +*******************************************************************************/ +void bta_av_rcfg_open (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + APPL_TRACE_DEBUG1("bta_av_rcfg_open, num_disc_snks = %d", p_scb->num_disc_snks); + + if (p_scb->num_disc_snks == 0) + { + /* Need to update call-out module so that it will be ready for discover */ + p_scb->p_cos->stop(p_scb->hndl, p_scb->codec_type); + + /* send avdtp discover request */ + AVDT_DiscoverReq(p_scb->peer_addr, p_scb->sep_info, BTA_AV_NUM_SEPS, bta_av_dt_cback[p_scb->hdi]); + } + else + { + p_scb->codec_type = p_scb->p_cap->codec_info[BTA_AV_CODEC_TYPE_IDX]; + memcpy(p_scb->cfg.codec_info, p_scb->p_cap->codec_info, AVDT_CODEC_SIZE); + /* we may choose to use a different SEP at reconfig. + * adjust the sep_idx now */ + bta_av_adjust_seps_idx(p_scb); + + /* open the stream with the new config */ + p_scb->sep_info_idx = p_scb->rcfg_idx; + AVDT_OpenReq(p_scb->avdt_handle, p_scb->peer_addr, + p_scb->sep_info[p_scb->sep_info_idx].seid, p_scb->p_cap); + } + +} + +/******************************************************************************* +** +** Function bta_av_security_rej +** +** Description Send an AVDTP security reject. +** +** Returns void +** +*******************************************************************************/ +void bta_av_security_rej (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + AVDT_SecurityRsp(p_scb->avdt_handle, p_scb->avdt_label, AVDT_ERR_BAD_STATE, + NULL, 0); +} + +/******************************************************************************* +** +** Function bta_av_chk_2nd_start +** +** Description check if this is 2nd stream and if it needs to be started. +** This function needs to be kept very similar to bta_av_chk_start +** +** Returns void +** +*******************************************************************************/ +void bta_av_chk_2nd_start (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_SCB *p_scbi; + int i; + BOOLEAN new_started = FALSE; + + + if ((p_scb->chnl == BTA_AV_CHNL_AUDIO) && (bta_av_cb.audio_open_cnt >= 2)) + { + /* more than one audio channel is connected */ + if (!(p_scb->role & BTA_AV_ROLE_SUSPEND_OPT)) + { + /* this channel does not need to be reconfigured. + * if there is other channel streaming, start the stream now */ + for(i=0; i<BTA_AV_NUM_STRS; i++) + { + p_scbi = bta_av_cb.p_scb[i]; + if(p_scbi && p_scbi->chnl == BTA_AV_CHNL_AUDIO && p_scbi->co_started) + { + if (!new_started) + { + /* start the new stream */ + new_started = TRUE; + bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL); + } + /* may need to update the flush timeout of this already started stream */ + if (p_scbi->co_started != bta_av_cb.audio_open_cnt) + { + p_scbi->co_started = bta_av_cb.audio_open_cnt; + L2CA_SetFlushTimeout(p_scbi->peer_addr, p_bta_av_cfg->p_audio_flush_to[p_scbi->co_started - 1] ); + } + } + } + } + } +} + +/******************************************************************************* +** +** Function bta_av_open_rc +** +** Description Send a message to main SM to open RC channel. +** +** Returns void +** +*******************************************************************************/ +void bta_av_open_rc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_START start; + + APPL_TRACE_DEBUG3("bta_av_open_rc use_rc: %d, wait: x%x role:x%x", p_scb->use_rc, p_scb->wait, p_scb->role); + if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) && (p_scb->q_tag == BTA_AV_Q_TAG_START)) + { + /* waiting for role switch for some reason & the timer expires */ + if (!bta_av_link_role_ok(p_scb, A2D_SET_ONE_BIT)) + { + APPL_TRACE_ERROR0 ("failed to start streaming for role management reasons!!"); + bta_sys_stop_timer(&p_scb->timer); + start.chnl = p_scb->chnl; + start.status = BTA_AV_FAIL_ROLE; + start.initiator = TRUE; + start.hndl = p_scb->hndl; + p_scb->wait &= ~BTA_AV_WAIT_ROLE_SW_BITS; + bta_av_cb.rs_idx = 0; + (*bta_av_cb.p_cback)(BTA_AV_START_EVT, (tBTA_AV *) &start); + } + else + { + /* role switch is done. continue to start streaming */ + bta_av_cb.rs_idx = 0; + p_data->hdr.offset = BTA_AV_RS_OK; + bta_av_start_ok (p_scb, p_data); + } + return; + } + + if(p_scb->use_rc == TRUE || (p_scb->role & BTA_AV_ROLE_AD_ACP) ) + { + if(bta_av_cb.disc) + { + /* AVRC discover db is in use */ + if(p_scb->rc_handle == BTA_AV_RC_HANDLE_NONE) + { + /* AVRC channel is not connected. delay a little bit */ + if ((p_scb->wait & BTA_AV_WAIT_ROLE_SW_BITS) == 0) + bta_sys_start_timer(&p_scb->timer, BTA_AV_AVRC_TIMER_EVT, BTA_AV_RC_DISC_TIME_VAL); + else + p_scb->wait |= BTA_AV_WAIT_CHECK_RC; + } + } + else + { + /* use main SM for AVRC SDP activities */ + bta_av_rc_disc((UINT8)(p_scb->hdi + 1)); + } + } + else + { + if(BTA_AV_RC_HANDLE_NONE != p_scb->rc_handle) + { + /* the open API said that this handle does not want a RC connection. + * disconnect it now */ + AVRC_Close(p_scb->rc_handle); + } + } +} + +/******************************************************************************* +** +** Function bta_av_open_at_inc +** +** Description This function is called if API open is called by application +** while state-machine is at incoming state. +** +** Returns void +** +*******************************************************************************/ +void bta_av_open_at_inc (tBTA_AV_SCB *p_scb, tBTA_AV_DATA *p_data) +{ + tBTA_AV_API_OPEN *p_buf; + + memcpy (&(p_scb->open_api), &(p_data->api_open), sizeof(tBTA_AV_API_OPEN)); + + if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) + { + p_scb->coll_mask |= BTA_AV_COLL_API_CALLED; + + /* API open will be handled at timeout if SNK did not start signalling. */ + /* API open will be ignored if SNK starts signalling. */ + } + else + { + /* SNK did not start signalling, API was called N seconds timeout. */ + /* We need to switch to INIT state and start opening connection. */ + p_scb->coll_mask = 0; + bta_av_set_scb_sst_init (p_scb); + + if ((p_buf = (tBTA_AV_API_OPEN *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN))) != NULL) + { + memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN)); + bta_sys_sendmsg(p_buf); + } + } +} + +#endif /* BTA_AV_INCLUDED */ |