/****************************************************************************** * * 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 #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; xxseps[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; xxseps[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; ichnl == 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 */