/****************************************************************************** * * 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 main state * machine. * ******************************************************************************/ #include "common/bt_target.h" #if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE) #include #include "bta/bta_av_api.h" #include "bta_av_int.h" #include "stack/avdt_api.h" #include "bta/utl.h" #include "stack/l2c_api.h" #include "osi/allocator.h" #include "osi/list.h" #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) #include "bta/bta_ar_api.h" #endif #define LOG_TAG "bt_bta_av" // #include "osi/include/log.h" #include "common/bt_trace.h" /***************************************************************************** ** Constants *****************************************************************************/ /* the timer in milliseconds to wait for open req after setconfig for incoming connections */ #ifndef BTA_AV_SIG_TIME_VAL #define BTA_AV_SIG_TIME_VAL 8000 #endif /* In millisec to wait for signalling from SNK when it is initiated from SNK. */ /* If not, we will start signalling from SRC. */ #ifndef BTA_AV_ACP_SIG_TIME_VAL #define BTA_AV_ACP_SIG_TIME_VAL 2000 #endif static void bta_av_acp_sig_timer_cback (TIMER_LIST_ENT *p_tle); /******************************************************************************* ** ** Function bta_av_get_rcb_by_shdl ** ** Description find the RCB associated with the given SCB handle. ** ** Returns tBTA_AV_RCB ** *******************************************************************************/ tBTA_AV_RCB *bta_av_get_rcb_by_shdl(UINT8 shdl) { tBTA_AV_RCB *p_rcb = NULL; int i; for (i = 0; i < BTA_AV_NUM_RCB; i++) { if (bta_av_cb.rcb[i].shdl == shdl && bta_av_cb.rcb[i].handle != BTA_AV_RC_HANDLE_NONE) { p_rcb = &bta_av_cb.rcb[i]; break; } } return p_rcb; } #define BTA_AV_STS_NO_RSP 0xFF /* a number not used by tAVRC_STS */ /******************************************************************************* ** ** Function bta_av_del_rc ** ** Description delete the given AVRC handle. ** ** Returns void ** *******************************************************************************/ void bta_av_del_rc(tBTA_AV_RCB *p_rcb) { tBTA_AV_SCB *p_scb; UINT8 rc_handle; /* connected AVRCP handle */ p_scb = NULL; if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) { if (p_rcb->shdl) { /* Validate array index*/ if ((p_rcb->shdl - 1) < BTA_AV_NUM_STRS) { p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1]; } if (p_scb) { APPL_TRACE_DEBUG("bta_av_del_rc shdl:%d, srch:%d rc_handle:%d", p_rcb->shdl, p_scb->rc_handle, p_rcb->handle); if (p_scb->rc_handle == p_rcb->handle) { p_scb->rc_handle = BTA_AV_RC_HANDLE_NONE; } /* just in case the RC timer is active if(bta_av_cb.features & BTA_AV_FEAT_RCCT && p_scb->chnl == BTA_AV_CHNL_AUDIO) */ bta_sys_stop_timer(&p_scb->timer); } } APPL_TRACE_EVENT("bta_av_del_rc handle: %d status=0x%x, rc_acp_handle:%d, idx:%d", p_rcb->handle, p_rcb->status, bta_av_cb.rc_acp_handle, bta_av_cb.rc_acp_idx); rc_handle = p_rcb->handle; if (!(p_rcb->status & BTA_AV_RC_CONN_MASK) || ((p_rcb->status & BTA_AV_RC_ROLE_MASK) == BTA_AV_RC_ROLE_INT) ) { p_rcb->status = 0; p_rcb->handle = BTA_AV_RC_HANDLE_NONE; p_rcb->shdl = 0; p_rcb->lidx = 0; } /* else ACP && connected. do not clear the handle yet */ AVRC_Close(rc_handle); if (rc_handle == bta_av_cb.rc_acp_handle) { bta_av_cb.rc_acp_handle = BTA_AV_RC_HANDLE_NONE; } APPL_TRACE_EVENT("end del_rc handle: %d status=0x%x, rc_acp_handle:%d, lidx:%d", p_rcb->handle, p_rcb->status, bta_av_cb.rc_acp_handle, p_rcb->lidx); } } /******************************************************************************* ** ** Function bta_av_close_all_rc ** ** Description close the all AVRC handle. ** ** Returns void ** *******************************************************************************/ static void bta_av_close_all_rc(tBTA_AV_CB *p_cb) { int i; for (i = 0; i < BTA_AV_NUM_RCB; i++) { if ((p_cb->disabling == TRUE) || (bta_av_cb.rcb[i].shdl != 0)) { bta_av_del_rc(&bta_av_cb.rcb[i]); } } } /******************************************************************************* ** ** Function bta_av_del_sdp_rec ** ** Description delete the given SDP record handle. ** ** Returns void ** *******************************************************************************/ static void bta_av_del_sdp_rec(UINT32 *p_sdp_handle) { if (*p_sdp_handle != 0) { SDP_DeleteRecord(*p_sdp_handle); *p_sdp_handle = 0; } } /******************************************************************************* ** ** Function bta_av_avrc_sdp_cback ** ** Description AVRCP service discovery callback. ** ** Returns void ** *******************************************************************************/ static void bta_av_avrc_sdp_cback(UINT16 status) { BT_HDR *p_msg; UNUSED(status); if ((p_msg = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) { p_msg->event = BTA_AV_SDP_AVRC_DISC_EVT; bta_sys_sendmsg(p_msg); } } /******************************************************************************* ** ** Function bta_av_rc_ctrl_cback ** ** Description AVRCP control callback. ** ** Returns void ** *******************************************************************************/ static void bta_av_rc_ctrl_cback(UINT8 handle, UINT8 event, UINT16 result, BD_ADDR peer_addr) { tBTA_AV_RC_CONN_CHG *p_msg; UINT16 msg_event = 0; UNUSED(result); APPL_TRACE_EVENT("%s handle: %d event: 0x%x",__func__, handle, event); if (event == AVRC_OPEN_IND_EVT) { /* save handle of opened connection bta_av_cb.rc_handle = handle;*/ msg_event = BTA_AV_AVRC_OPEN_EVT; } else if (event == AVRC_CLOSE_IND_EVT) { msg_event = BTA_AV_AVRC_CLOSE_EVT; } if (msg_event) { if ((p_msg = (tBTA_AV_RC_CONN_CHG *) osi_malloc(sizeof(tBTA_AV_RC_CONN_CHG))) != NULL) { p_msg->hdr.event = msg_event; p_msg->handle = handle; if (peer_addr) { bdcpy(p_msg->peer_addr, peer_addr); } bta_sys_sendmsg(p_msg); } } } /******************************************************************************* ** ** Function bta_av_rc_msg_cback ** ** Description AVRCP message callback. ** ** Returns void ** *******************************************************************************/ static void bta_av_rc_msg_cback(UINT8 handle, UINT8 label, UINT8 opcode, tAVRC_MSG *p_msg) { UINT8 *p_data_src = NULL; UINT16 data_len = 0; APPL_TRACE_DEBUG("%s handle: %u opcode=0x%x", __func__, handle, opcode); /* Determine the size of the buffer we need */ if (opcode == AVRC_OP_VENDOR && p_msg->vendor.p_vendor_data != NULL) { p_data_src = p_msg->vendor.p_vendor_data; data_len = (UINT16) p_msg->vendor.vendor_len; } else if (opcode == AVRC_OP_PASS_THRU && p_msg->pass.p_pass_data != NULL) { p_data_src = p_msg->pass.p_pass_data; data_len = (UINT16) p_msg->pass.pass_len; } /* Create a copy of the message */ tBTA_AV_RC_MSG *p_buf = (tBTA_AV_RC_MSG *)osi_malloc((UINT16)(sizeof(tBTA_AV_RC_MSG) + data_len)); if (p_buf != NULL) { p_buf->hdr.event = BTA_AV_AVRC_MSG_EVT; p_buf->handle = handle; p_buf->label = label; p_buf->opcode = opcode; memcpy(&p_buf->msg, p_msg, sizeof(tAVRC_MSG)); /* Copy the data payload, and set the pointer to it */ if (p_data_src != NULL) { UINT8 *p_data_dst = (UINT8 *)(p_buf + 1); memcpy(p_data_dst, p_data_src, data_len); if (opcode == AVRC_OP_VENDOR) { p_buf->msg.vendor.p_vendor_data = p_data_dst; } else if (opcode == AVRC_OP_PASS_THRU) { p_buf->msg.pass.p_pass_data = p_data_dst; } } bta_sys_sendmsg(p_buf); } } /******************************************************************************* ** ** Function bta_av_rc_create ** ** Description alloc RCB and call AVRC_Open ** ** Returns the created rc handle ** *******************************************************************************/ UINT8 bta_av_rc_create(tBTA_AV_CB *p_cb, UINT8 role, UINT8 shdl, UINT8 lidx) { tAVRC_CONN_CB ccb; BD_ADDR_PTR bda = (BD_ADDR_PTR)bd_addr_any; UINT8 status = BTA_AV_RC_ROLE_ACP; tBTA_AV_SCB *p_scb = p_cb->p_scb[shdl - 1]; int i; UINT8 rc_handle; tBTA_AV_RCB *p_rcb; if (role == AVCT_INT) { bda = p_scb->peer_addr; status = BTA_AV_RC_ROLE_INT; } else { if ((p_rcb = bta_av_get_rcb_by_shdl(shdl)) != NULL ) { APPL_TRACE_ERROR("bta_av_rc_create ACP handle exist for shdl:%d", shdl); return p_rcb->handle; } } ccb.p_ctrl_cback = bta_av_rc_ctrl_cback; ccb.p_msg_cback = bta_av_rc_msg_cback; ccb.company_id = p_bta_av_cfg->company_id; ccb.conn = role; /* note: BTA_AV_FEAT_RCTG = AVRC_CT_TARGET, BTA_AV_FEAT_RCCT = AVRC_CT_CONTROL */ ccb.control = p_cb->features & (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_RCCT | AVRC_CT_PASSIVE); if (AVRC_Open(&rc_handle, &ccb, bda) != AVRC_SUCCESS) { return BTA_AV_RC_HANDLE_NONE; } i = rc_handle; p_rcb = &p_cb->rcb[i]; if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) { APPL_TRACE_ERROR("bta_av_rc_create found duplicated handle:%d", rc_handle); } p_rcb->handle = rc_handle; p_rcb->status = status; p_rcb->shdl = shdl; p_rcb->lidx = lidx; p_rcb->peer_features = 0; if (lidx == (BTA_AV_NUM_LINKS + 1)) { /* this LIDX is reserved for the AVRCP ACP connection */ p_cb->rc_acp_handle = p_rcb->handle; p_cb->rc_acp_idx = (i + 1); APPL_TRACE_DEBUG("rc_acp_handle:%d idx:%d", p_cb->rc_acp_handle, p_cb->rc_acp_idx); } APPL_TRACE_DEBUG("create %d, role: %d, shdl:%d, rc_handle:%d, lidx:%d, status:0x%x", i, role, shdl, p_rcb->handle, lidx, p_rcb->status); return rc_handle; } /******************************************************************************* ** ** Function bta_av_valid_group_navi_msg ** ** Description Check if it is Group Navigation Msg for Metadata ** ** Returns BTA_AV_RSP_ACCEPT or BTA_AV_RSP_NOT_IMPL. ** *******************************************************************************/ static tBTA_AV_CODE bta_av_group_navi_supported(UINT8 len, UINT8 *p_data, BOOLEAN is_inquiry) { tBTA_AV_CODE ret = BTA_AV_RSP_NOT_IMPL; UINT8 *p_ptr = p_data; UINT16 u16; UINT32 u32; if (p_bta_av_cfg->avrc_group && len == BTA_GROUP_NAVI_MSG_OP_DATA_LEN) { BTA_AV_BE_STREAM_TO_CO_ID(u32, p_ptr); BE_STREAM_TO_UINT16(u16, p_ptr); if (u32 == AVRC_CO_METADATA) { if (is_inquiry) { if (u16 <= AVRC_PDU_PREV_GROUP) { ret = BTA_AV_RSP_IMPL_STBL; } } else { if (u16 <= AVRC_PDU_PREV_GROUP) { ret = BTA_AV_RSP_ACCEPT; } else { ret = BTA_AV_RSP_REJ; } } } } return ret; } /******************************************************************************* ** ** Function bta_av_op_supported ** ** Description Check if remote control operation is supported. ** ** Returns BTA_AV_RSP_ACCEPT of supported, BTA_AV_RSP_NOT_IMPL if not. ** *******************************************************************************/ static tBTA_AV_CODE bta_av_op_supported(tBTA_AV_RC rc_id, BOOLEAN is_inquiry) { tBTA_AV_CODE ret_code = BTA_AV_RSP_NOT_IMPL; if (p_bta_av_rc_id) { if (is_inquiry) { if (p_bta_av_rc_id[rc_id >> 4] & (1 << (rc_id & 0x0F))) { ret_code = BTA_AV_RSP_IMPL_STBL; } } else { if (p_bta_av_rc_id[rc_id >> 4] & (1 << (rc_id & 0x0F))) { ret_code = BTA_AV_RSP_ACCEPT; } else if ((p_bta_av_cfg->rc_pass_rsp == BTA_AV_RSP_INTERIM) && p_bta_av_rc_id_ac) { if (p_bta_av_rc_id_ac[rc_id >> 4] & (1 << (rc_id & 0x0F))) { ret_code = BTA_AV_RSP_INTERIM; } } } } return ret_code; } /******************************************************************************* ** ** Function bta_av_find_lcb ** ** Description Given BD_addr, find the associated LCB. ** ** Returns NULL, if not found. ** *******************************************************************************/ tBTA_AV_LCB *bta_av_find_lcb(BD_ADDR addr, UINT8 op) { tBTA_AV_CB *p_cb = &bta_av_cb; int xx; UINT8 mask; tBTA_AV_LCB *p_lcb = NULL; for (xx = 0; xx < BTA_AV_NUM_LINKS; xx++) { mask = 1 << xx; /* the used mask for this lcb */ if ((mask & p_cb->conn_lcb) && 0 == ( bdcmp(p_cb->lcb[xx].addr, addr))) { p_lcb = &p_cb->lcb[xx]; if (op == BTA_AV_LCB_FREE) { p_cb->conn_lcb &= ~mask; /* clear the connect mask */ APPL_TRACE_DEBUG("conn_lcb: 0x%x", p_cb->conn_lcb); } break; } } return p_lcb; } /******************************************************************************* ** ** Function bta_av_rc_opened ** ** Description Set AVRCP state to opened. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_opened(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { tBTA_AV_RC_OPEN rc_open; tBTA_AV_SCB *p_scb; int i; UINT8 shdl = 0; tBTA_AV_LCB *p_lcb; tBTA_AV_RCB *p_rcb; UINT8 tmp; UINT8 disc = 0; /* find the SCB & stop the timer */ for (i = 0; i < BTA_AV_NUM_STRS; i++) { p_scb = p_cb->p_scb[i]; if (p_scb && bdcmp(p_scb->peer_addr, p_data->rc_conn_chg.peer_addr) == 0) { p_scb->rc_handle = p_data->rc_conn_chg.handle; APPL_TRACE_DEBUG("bta_av_rc_opened shdl:%d, srch %d", i + 1, p_scb->rc_handle); shdl = i + 1; APPL_TRACE_EVENT("%s allow incoming AVRCP connections:%d", __func__, p_scb->use_rc); bta_sys_stop_timer(&p_scb->timer); disc = p_scb->hndl; break; } } i = p_data->rc_conn_chg.handle; if (p_cb->rcb[i].handle == BTA_AV_RC_HANDLE_NONE) { APPL_TRACE_ERROR("not a valid handle:%d any more", i); return; } if (p_cb->rcb[i].lidx == (BTA_AV_NUM_LINKS + 1) && shdl != 0) { /* rc is opened on the RC only ACP channel, but is for a specific * SCB -> need to switch RCBs */ p_rcb = bta_av_get_rcb_by_shdl(shdl); if (p_rcb) { p_rcb->shdl = p_cb->rcb[i].shdl; tmp = p_rcb->lidx; p_rcb->lidx = p_cb->rcb[i].lidx; p_cb->rcb[i].lidx = tmp; p_cb->rc_acp_handle = p_rcb->handle; p_cb->rc_acp_idx = (p_rcb - p_cb->rcb) + 1; APPL_TRACE_DEBUG("switching RCB rc_acp_handle:%d idx:%d", p_cb->rc_acp_handle, p_cb->rc_acp_idx); } } p_cb->rcb[i].shdl = shdl; rc_open.rc_handle = i; APPL_TRACE_EVENT("bta_av_rc_opened rcb[%d] shdl:%d lidx:%d/%d", i, shdl, p_cb->rcb[i].lidx, p_cb->lcb[BTA_AV_NUM_LINKS].lidx); p_cb->rcb[i].status |= BTA_AV_RC_CONN_MASK; if (!shdl && 0 == p_cb->lcb[BTA_AV_NUM_LINKS].lidx) { /* no associated SCB -> connected to an RC only device * update the index to the extra LCB */ p_lcb = &p_cb->lcb[BTA_AV_NUM_LINKS]; bdcpy(p_lcb->addr, p_data->rc_conn_chg.peer_addr); APPL_TRACE_DEBUG("rc_only bd_addr:%02x-%02x-%02x-%02x-%02x-%02x", p_lcb->addr[0], p_lcb->addr[1], p_lcb->addr[2], p_lcb->addr[3], p_lcb->addr[4], p_lcb->addr[5]); p_lcb->lidx = BTA_AV_NUM_LINKS + 1; p_cb->rcb[i].lidx = p_lcb->lidx; p_lcb->conn_msk = 1; APPL_TRACE_ERROR("rcb[%d].lidx=%d, lcb.conn_msk=x%x", i, p_cb->rcb[i].lidx, p_lcb->conn_msk); disc = p_data->rc_conn_chg.handle | BTA_AV_CHNL_MSK; } bdcpy(rc_open.peer_addr, p_data->rc_conn_chg.peer_addr); rc_open.peer_features = p_cb->rcb[i].peer_features; rc_open.sdp_disc_done = TRUE; rc_open.status = BTA_AV_SUCCESS; APPL_TRACE_DEBUG("local features:x%x peer_features:x%x", p_cb->features, rc_open.peer_features); if (rc_open.peer_features == 0) { /* we have not done SDP on peer RC capabilities. * peer must have initiated the RC connection */ rc_open.peer_features = BTA_AV_FEAT_RCCT; rc_open.sdp_disc_done = FALSE; bta_av_rc_disc(disc); } (*p_cb->p_cback)(BTA_AV_RC_OPEN_EVT, (tBTA_AV *) &rc_open); } /******************************************************************************* ** ** Function bta_av_rc_remote_cmd ** ** Description Send an AVRCP remote control command. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_remote_cmd(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { tBTA_AV_RCB *p_rcb; if (p_cb->features & BTA_AV_FEAT_RCCT) { if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB) { p_rcb = &p_cb->rcb[p_data->hdr.layer_specific]; if (p_rcb->status & BTA_AV_RC_CONN_MASK) { AVRC_PassCmd(p_rcb->handle, p_data->api_remote_cmd.label, &p_data->api_remote_cmd.msg); } } } } /******************************************************************************* ** ** Function bta_av_rc_vendor_cmd ** ** Description Send an AVRCP vendor specific command. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_vendor_cmd(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { tBTA_AV_RCB *p_rcb; if ( (p_cb->features & (BTA_AV_FEAT_RCCT | BTA_AV_FEAT_VENDOR)) == (BTA_AV_FEAT_RCCT | BTA_AV_FEAT_VENDOR)) { if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB) { p_rcb = &p_cb->rcb[p_data->hdr.layer_specific]; AVRC_VendorCmd(p_rcb->handle, p_data->api_vendor.label, &p_data->api_vendor.msg); } } } /******************************************************************************* ** ** Function bta_av_rc_vendor_rsp ** ** Description Send an AVRCP vendor specific response. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_vendor_rsp(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { tBTA_AV_RCB *p_rcb; if ( (p_cb->features & (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_VENDOR)) == (BTA_AV_FEAT_RCTG | BTA_AV_FEAT_VENDOR)) { if (p_data->hdr.layer_specific < BTA_AV_NUM_RCB) { p_rcb = &p_cb->rcb[p_data->hdr.layer_specific]; AVRC_VendorRsp(p_rcb->handle, p_data->api_vendor.label, &p_data->api_vendor.msg); } } } /******************************************************************************* ** ** Function bta_av_rc_meta_rsp ** ** Description Send an AVRCP metadata/advanced control command/response. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_meta_rsp(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { tBTA_AV_RCB *p_rcb; BOOLEAN do_free = TRUE; if ((p_cb->features & BTA_AV_FEAT_METADATA) && (p_data->hdr.layer_specific < BTA_AV_NUM_RCB)) { if ((p_data->api_meta_rsp.is_rsp && (p_cb->features & BTA_AV_FEAT_RCTG)) || (!p_data->api_meta_rsp.is_rsp && (p_cb->features & BTA_AV_FEAT_RCCT)) ) { p_rcb = &p_cb->rcb[p_data->hdr.layer_specific]; if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) { AVRC_MsgReq(p_rcb->handle, p_data->api_meta_rsp.label, p_data->api_meta_rsp.rsp_code, p_data->api_meta_rsp.p_pkt); do_free = FALSE; } } } if (do_free) { osi_free (p_data->api_meta_rsp.p_pkt); } } /******************************************************************************* ** ** Function bta_av_rc_free_rsp ** ** Description free an AVRCP metadata command buffer. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_free_rsp (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { UNUSED(p_cb); osi_free (p_data->api_meta_rsp.p_pkt); } /******************************************************************************* ** ** Function bta_av_rc_meta_req ** ** Description Send an AVRCP metadata command. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_free_msg (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { UNUSED(p_cb); UNUSED(p_data); } /******************************************************************************* ** ** Function bta_av_chk_notif_evt_id ** ** Description make sure the requested player id is valid. ** ** Returns BTA_AV_STS_NO_RSP, if no error ** *******************************************************************************/ static tAVRC_STS bta_av_chk_notif_evt_id(tAVRC_MSG_VENDOR *p_vendor) { tAVRC_STS status = BTA_AV_STS_NO_RSP; UINT8 xx; UINT16 u16; UINT8 *p = p_vendor->p_vendor_data + 2; BE_STREAM_TO_UINT16 (u16, p); /* double check the fixed length */ if ((u16 != 5) || (p_vendor->vendor_len != 9)) { status = AVRC_STS_INTERNAL_ERR; } else { /* make sure the player_id is valid */ for (xx = 0; xx < p_bta_av_cfg->num_evt_ids; xx++) { if (*p == p_bta_av_cfg->p_meta_evt_ids[xx]) { break; } } if (xx == p_bta_av_cfg->num_evt_ids) { status = AVRC_STS_BAD_PARAM; } } return status; } /******************************************************************************* ** ** Function bta_av_proc_meta_cmd ** ** Description Process an AVRCP metadata command from the peer. ** ** Returns TRUE to respond immediately ** *******************************************************************************/ tBTA_AV_EVT bta_av_proc_meta_cmd(tAVRC_RESPONSE *p_rc_rsp, tBTA_AV_RC_MSG *p_msg, UINT8 *p_ctype) { tBTA_AV_EVT evt = BTA_AV_META_MSG_EVT; UINT8 u8, pdu, *p; UINT16 u16; tAVRC_MSG_VENDOR *p_vendor = &p_msg->msg.vendor; #if (AVRC_METADATA_INCLUDED == TRUE) pdu = *(p_vendor->p_vendor_data); p_rc_rsp->pdu = pdu; *p_ctype = AVRC_RSP_REJ; /* Metadata messages only use PANEL sub-unit type */ if (p_vendor->hdr.subunit_type != AVRC_SUB_PANEL) { APPL_TRACE_DEBUG("SUBUNIT must be PANEL"); /* reject it */ evt = 0; p_vendor->hdr.ctype = BTA_AV_RSP_NOT_IMPL; AVRC_VendorRsp(p_msg->handle, p_msg->label, &p_msg->msg.vendor); } else if (!AVRC_IsValidAvcType(pdu, p_vendor->hdr.ctype) ) { APPL_TRACE_DEBUG("Invalid pdu/ctype: 0x%x, %d", pdu, p_vendor->hdr.ctype); /* reject invalid message without reporting to app */ evt = 0; p_rc_rsp->rsp.status = AVRC_STS_BAD_CMD; } else { switch (pdu) { case AVRC_PDU_GET_CAPABILITIES: /* process GetCapabilities command without reporting the event to app */ evt = 0; u8 = *(p_vendor->p_vendor_data + 4); p = p_vendor->p_vendor_data + 2; p_rc_rsp->get_caps.capability_id = u8; BE_STREAM_TO_UINT16 (u16, p); if ((u16 != 1) || (p_vendor->vendor_len != 5)) { p_rc_rsp->get_caps.status = AVRC_STS_INTERNAL_ERR; } else { p_rc_rsp->get_caps.status = AVRC_STS_NO_ERROR; if (u8 == AVRC_CAP_COMPANY_ID) { *p_ctype = AVRC_RSP_IMPL_STBL; p_rc_rsp->get_caps.count = p_bta_av_cfg->num_co_ids; memcpy(p_rc_rsp->get_caps.param.company_id, p_bta_av_cfg->p_meta_co_ids, (p_bta_av_cfg->num_co_ids << 2)); } else if (u8 == AVRC_CAP_EVENTS_SUPPORTED) { *p_ctype = AVRC_RSP_IMPL_STBL; p_rc_rsp->get_caps.count = p_bta_av_cfg->num_evt_ids; memcpy(p_rc_rsp->get_caps.param.event_id, p_bta_av_cfg->p_meta_evt_ids, p_bta_av_cfg->num_evt_ids); } else { APPL_TRACE_DEBUG("Invalid capability ID: 0x%x", u8); /* reject - unknown capability ID */ p_rc_rsp->get_caps.status = AVRC_STS_BAD_PARAM; } } break; case AVRC_PDU_REGISTER_NOTIFICATION: /* make sure the event_id is implemented */ p_rc_rsp->rsp.status = bta_av_chk_notif_evt_id (p_vendor); if (p_rc_rsp->rsp.status != BTA_AV_STS_NO_RSP) { evt = 0; } break; } } #else APPL_TRACE_DEBUG("AVRCP 1.3 Metadata not supporteed. Reject command."); /* reject invalid message without reporting to app */ evt = 0; p_rc_rsp->rsp.status = AVRC_STS_BAD_CMD; #endif return evt; } /******************************************************************************* ** ** Function bta_av_rc_msg ** ** Description Process an AVRCP message from the peer. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_msg(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { tBTA_AV_EVT evt = 0; tBTA_AV av; BT_HDR *p_pkt = NULL; tAVRC_MSG_VENDOR *p_vendor = &p_data->rc_msg.msg.vendor; BOOLEAN is_inquiry = ((p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_SPEC_INQ) || p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_GEN_INQ); #if (AVRC_METADATA_INCLUDED == TRUE) UINT8 ctype = 0; tAVRC_RESPONSE rc_rsp; rc_rsp.rsp.status = BTA_AV_STS_NO_RSP; #endif if (p_data->rc_msg.opcode == AVRC_OP_PASS_THRU) { /* if this is a pass thru command */ if ((p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_CTRL) || (p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_SPEC_INQ) || (p_data->rc_msg.msg.hdr.ctype == AVRC_CMD_GEN_INQ) ) { /* check if operation is supported */ if (p_data->rc_msg.msg.pass.op_id == AVRC_ID_VENDOR) { p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_NOT_IMPL; #if (AVRC_METADATA_INCLUDED == TRUE) if (p_cb->features & BTA_AV_FEAT_METADATA) { p_data->rc_msg.msg.hdr.ctype = bta_av_group_navi_supported(p_data->rc_msg.msg.pass.pass_len, p_data->rc_msg.msg.pass.p_pass_data, is_inquiry); } #endif } else { p_data->rc_msg.msg.hdr.ctype = bta_av_op_supported(p_data->rc_msg.msg.pass.op_id, is_inquiry); } APPL_TRACE_DEBUG("ctype %d", p_data->rc_msg.msg.hdr.ctype) /* send response */ if (p_data->rc_msg.msg.hdr.ctype != BTA_AV_RSP_INTERIM) { AVRC_PassRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.pass); } /* set up for callback if supported */ if (p_data->rc_msg.msg.hdr.ctype == BTA_AV_RSP_ACCEPT || p_data->rc_msg.msg.hdr.ctype == BTA_AV_RSP_INTERIM) { evt = BTA_AV_REMOTE_CMD_EVT; av.remote_cmd.rc_id = p_data->rc_msg.msg.pass.op_id; av.remote_cmd.key_state = p_data->rc_msg.msg.pass.state; av.remote_cmd.p_data = p_data->rc_msg.msg.pass.p_pass_data; av.remote_cmd.len = p_data->rc_msg.msg.pass.pass_len; memcpy(&av.remote_cmd.hdr, &p_data->rc_msg.msg.hdr, sizeof (tAVRC_HDR)); av.remote_cmd.label = p_data->rc_msg.label; } } /* else if this is a pass thru response */ else if (p_data->rc_msg.msg.hdr.ctype >= AVRC_RSP_ACCEPT) { /* set up for callback */ evt = BTA_AV_REMOTE_RSP_EVT; av.remote_rsp.rc_id = p_data->rc_msg.msg.pass.op_id; av.remote_rsp.key_state = p_data->rc_msg.msg.pass.state; av.remote_rsp.rsp_code = p_data->rc_msg.msg.hdr.ctype; av.remote_rsp.label = p_data->rc_msg.label; } /* must be a bad ctype -> reject*/ else { p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_REJ; AVRC_PassRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.pass); } } /* else if this is a vendor specific command or response */ else if (p_data->rc_msg.opcode == AVRC_OP_VENDOR) { /* set up for callback */ av.vendor_cmd.code = p_data->rc_msg.msg.hdr.ctype; av.vendor_cmd.company_id = p_vendor->company_id; av.vendor_cmd.label = p_data->rc_msg.label; av.vendor_cmd.p_data = p_vendor->p_vendor_data; av.vendor_cmd.len = p_vendor->vendor_len; /* if configured to support vendor specific and it's a command */ if ((p_cb->features & BTA_AV_FEAT_VENDOR) && p_data->rc_msg.msg.hdr.ctype <= AVRC_CMD_GEN_INQ) { #if (AVRC_METADATA_INCLUDED == TRUE) if ((p_cb->features & BTA_AV_FEAT_METADATA) && (p_vendor->company_id == AVRC_CO_METADATA)) { av.meta_msg.p_msg = &p_data->rc_msg.msg; evt = bta_av_proc_meta_cmd (&rc_rsp, &p_data->rc_msg, &ctype); } else #endif { evt = BTA_AV_VENDOR_CMD_EVT; } } /* else if configured to support vendor specific and it's a response */ else if ((p_cb->features & BTA_AV_FEAT_VENDOR) && p_data->rc_msg.msg.hdr.ctype >= AVRC_RSP_ACCEPT) { #if (AVRC_METADATA_INCLUDED == TRUE) if ((p_cb->features & BTA_AV_FEAT_METADATA) && (p_vendor->company_id == AVRC_CO_METADATA)) { av.meta_msg.p_msg = &p_data->rc_msg.msg; evt = BTA_AV_META_MSG_EVT; } else #endif { evt = BTA_AV_VENDOR_RSP_EVT; } } /* else if not configured to support vendor specific and it's a command */ else if (!(p_cb->features & BTA_AV_FEAT_VENDOR) && p_data->rc_msg.msg.hdr.ctype <= AVRC_CMD_GEN_INQ) { if (p_data->rc_msg.msg.vendor.p_vendor_data[0] == AVRC_PDU_INVALID) { /* reject it */ p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_REJ; p_data->rc_msg.msg.vendor.p_vendor_data[4] = AVRC_STS_BAD_CMD; } else { p_data->rc_msg.msg.hdr.ctype = BTA_AV_RSP_NOT_IMPL; } AVRC_VendorRsp(p_data->rc_msg.handle, p_data->rc_msg.label, &p_data->rc_msg.msg.vendor); } } #if (AVRC_METADATA_INCLUDED == TRUE) if (evt == 0 && rc_rsp.rsp.status != BTA_AV_STS_NO_RSP) { if (!p_pkt) { rc_rsp.rsp.opcode = p_data->rc_msg.opcode; AVRC_BldResponse (0, &rc_rsp, &p_pkt); } if (p_pkt) { AVRC_MsgReq (p_data->rc_msg.handle, p_data->rc_msg.label, ctype, p_pkt); } } #endif /* call callback */ if (evt != 0) { av.remote_cmd.rc_handle = p_data->rc_msg.handle; (*p_cb->p_cback)(evt, &av); } } /******************************************************************************* ** ** Function bta_av_rc_close ** ** Description close the specified AVRC handle. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_close (tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { UINT16 handle = p_data->hdr.layer_specific; tBTA_AV_SCB *p_scb; tBTA_AV_RCB *p_rcb; if (handle < BTA_AV_NUM_RCB) { p_rcb = &p_cb->rcb[handle]; APPL_TRACE_DEBUG("bta_av_rc_close handle: %d, status=0x%x", p_rcb->handle, p_rcb->status); if (p_rcb->handle != BTA_AV_RC_HANDLE_NONE) { if (p_rcb->shdl) { p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1]; if (p_scb) { /* just in case the RC timer is active if(bta_av_cb.features & BTA_AV_FEAT_RCCT && p_scb->chnl == BTA_AV_CHNL_AUDIO) */ bta_sys_stop_timer(&p_scb->timer); } } AVRC_Close(p_rcb->handle); } } } /******************************************************************************* ** ** Function bta_av_get_shdl ** ** Returns The index to p_scb[] ** *******************************************************************************/ static UINT8 bta_av_get_shdl(tBTA_AV_SCB *p_scb) { int i; UINT8 shdl = 0; /* find the SCB & stop the timer */ for (i = 0; i < BTA_AV_NUM_STRS; i++) { if (p_scb == bta_av_cb.p_scb[i]) { shdl = i + 1; break; } } return shdl; } /******************************************************************************* ** ** Function bta_av_stream_chg ** ** Description audio streaming status changed. ** ** Returns void ** *******************************************************************************/ void bta_av_stream_chg(tBTA_AV_SCB *p_scb, BOOLEAN started) { UINT8 started_msk; int i; UINT8 *p_streams; BOOLEAN no_streams = FALSE; tBTA_AV_SCB *p_scbi; started_msk = BTA_AV_HNDL_TO_MSK(p_scb->hdi); APPL_TRACE_DEBUG ("bta_av_stream_chg started:%d started_msk:x%x chnl:x%x", started, started_msk, p_scb->chnl); if (BTA_AV_CHNL_AUDIO == p_scb->chnl) { p_streams = &bta_av_cb.audio_streams; } else { p_streams = &bta_av_cb.video_streams; } if (started) { /* Let L2CAP know this channel is processed with high priority */ L2CA_SetAclPriority(p_scb->peer_addr, L2CAP_PRIORITY_HIGH); (*p_streams) |= started_msk; } else { (*p_streams) &= ~started_msk; } if (!started) { i = 0; if (BTA_AV_CHNL_AUDIO == p_scb->chnl) { if (bta_av_cb.video_streams == 0) { no_streams = TRUE; } } else { no_streams = TRUE; if ( bta_av_cb.audio_streams ) { for (; i < BTA_AV_NUM_STRS; i++) { p_scbi = bta_av_cb.p_scb[i]; /* scb is used and started */ if ( p_scbi && (bta_av_cb.audio_streams & BTA_AV_HNDL_TO_MSK(i)) && bdcmp(p_scbi->peer_addr, p_scb->peer_addr) == 0) { no_streams = FALSE; break; } } } } APPL_TRACE_DEBUG ("no_streams:%d i:%d, audio_streams:x%x, video_streams:x%x", no_streams, i, bta_av_cb.audio_streams, bta_av_cb.video_streams); if (no_streams) { /* Let L2CAP know this channel is processed with low priority */ L2CA_SetAclPriority(p_scb->peer_addr, L2CAP_PRIORITY_NORMAL); } } } /******************************************************************************* ** ** Function bta_av_conn_chg ** ** Description connection status changed. ** Open an AVRCP acceptor channel, if new conn. ** ** Returns void ** *******************************************************************************/ void bta_av_conn_chg(tBTA_AV_DATA *p_data) { tBTA_AV_CB *p_cb = &bta_av_cb; tBTA_AV_SCB *p_scb = NULL; tBTA_AV_SCB *p_scbi; UINT8 mask; UINT8 conn_msk; UINT8 old_msk; int i; int index = (p_data->hdr.layer_specific & BTA_AV_HNDL_MSK) - 1; tBTA_AV_LCB *p_lcb; tBTA_AV_LCB *p_lcb_rc; tBTA_AV_RCB *p_rcb, *p_rcb2; BOOLEAN chk_restore = FALSE; /* Validate array index*/ if (index < BTA_AV_NUM_STRS) { p_scb = p_cb->p_scb[index]; } mask = BTA_AV_HNDL_TO_MSK(index); p_lcb = bta_av_find_lcb(p_data->conn_chg.peer_addr, BTA_AV_LCB_FIND); conn_msk = 1 << (index + 1); if (p_data->conn_chg.is_up) { /* set the conned mask for this channel */ if (p_scb) { if (p_lcb) { p_lcb->conn_msk |= conn_msk; for (i = 0; i < BTA_AV_NUM_RCB; i++) { if (bta_av_cb.rcb[i].lidx == p_lcb->lidx) { bta_av_cb.rcb[i].shdl = index + 1; APPL_TRACE_DEBUG("conn_chg up[%d]: %d, status=0x%x, shdl:%d, lidx:%d", i, bta_av_cb.rcb[i].handle, bta_av_cb.rcb[i].status, bta_av_cb.rcb[i].shdl, bta_av_cb.rcb[i].lidx); break; } } } if (p_scb->chnl == BTA_AV_CHNL_AUDIO) { old_msk = p_cb->conn_audio; p_cb->conn_audio |= mask; } else { old_msk = p_cb->conn_video; p_cb->conn_video |= mask; } if ((old_msk & mask) == 0) { /* increase the audio open count, if not set yet */ bta_av_cb.audio_open_cnt++; } APPL_TRACE_DEBUG("rc_acp_handle:%d rc_acp_idx:%d", p_cb->rc_acp_handle, p_cb->rc_acp_idx); /* check if the AVRCP ACP channel is already connected */ if (p_lcb && p_cb->rc_acp_handle != BTA_AV_RC_HANDLE_NONE && p_cb->rc_acp_idx) { p_lcb_rc = &p_cb->lcb[BTA_AV_NUM_LINKS]; APPL_TRACE_DEBUG("rc_acp is connected && conn_chg on same addr p_lcb_rc->conn_msk:x%x", p_lcb_rc->conn_msk); /* check if the RC is connected to the scb addr */ APPL_TRACE_DEBUG ("p_lcb_rc->addr: %02x:%02x:%02x:%02x:%02x:%02x", p_lcb_rc->addr[0], p_lcb_rc->addr[1], p_lcb_rc->addr[2], p_lcb_rc->addr[3], p_lcb_rc->addr[4], p_lcb_rc->addr[5]); APPL_TRACE_DEBUG ("conn_chg.peer_addr: %02x:%02x:%02x:%02x:%02x:%02x", p_data->conn_chg.peer_addr[0], p_data->conn_chg.peer_addr[1], p_data->conn_chg.peer_addr[2], p_data->conn_chg.peer_addr[3], p_data->conn_chg.peer_addr[4], p_data->conn_chg.peer_addr[5]); if (p_lcb_rc->conn_msk && bdcmp(p_lcb_rc->addr, p_data->conn_chg.peer_addr) == 0) { /* AVRCP is already connected. * need to update the association betwen SCB and RCB */ p_lcb_rc->conn_msk = 0; /* indicate RC ONLY is not connected */ p_lcb_rc->lidx = 0; p_scb->rc_handle = p_cb->rc_acp_handle; p_rcb = &p_cb->rcb[p_cb->rc_acp_idx - 1]; p_rcb->shdl = bta_av_get_shdl(p_scb); APPL_TRACE_DEBUG("update rc_acp shdl:%d/%d srch:%d", index + 1, p_rcb->shdl, p_scb->rc_handle ); p_rcb2 = bta_av_get_rcb_by_shdl(p_rcb->shdl); if (p_rcb2) { /* found the RCB that was created to associated with this SCB */ p_cb->rc_acp_handle = p_rcb2->handle; p_cb->rc_acp_idx = (p_rcb2 - p_cb->rcb) + 1; APPL_TRACE_DEBUG("new rc_acp_handle:%d, idx:%d", p_cb->rc_acp_handle, p_cb->rc_acp_idx); p_rcb2->lidx = (BTA_AV_NUM_LINKS + 1); APPL_TRACE_DEBUG("rc2 handle:%d lidx:%d/%d", p_rcb2->handle, p_rcb2->lidx, p_cb->lcb[p_rcb2->lidx - 1].lidx); } p_rcb->lidx = p_lcb->lidx; APPL_TRACE_DEBUG("rc handle:%d lidx:%d/%d", p_rcb->handle, p_rcb->lidx, p_cb->lcb[p_rcb->lidx - 1].lidx); } } } } else { if ((p_cb->conn_audio & mask) && bta_av_cb.audio_open_cnt) { /* this channel is still marked as open. decrease the count */ bta_av_cb.audio_open_cnt--; } /* clear the conned mask for this channel */ p_cb->conn_audio &= ~mask; p_cb->conn_video &= ~mask; if (p_scb) { /* the stream is closed. * clear the peer address, so it would not mess up the AVRCP for the next round of operation */ bdcpy(p_scb->peer_addr, bd_addr_null); if (p_scb->chnl == BTA_AV_CHNL_AUDIO) { if (p_lcb) { p_lcb->conn_msk &= ~conn_msk; } /* audio channel is down. make sure the INT channel is down */ /* just in case the RC timer is active if(p_cb->features & BTA_AV_FEAT_RCCT) */ { bta_sys_stop_timer(&p_scb->timer); } /* one audio channel goes down. check if we need to restore high priority */ chk_restore = TRUE; } } APPL_TRACE_DEBUG("bta_av_conn_chg shdl:%d", index + 1); for (i = 0; i < BTA_AV_NUM_RCB; i++) { APPL_TRACE_DEBUG("conn_chg dn[%d]: %d, status=0x%x, shdl:%d, lidx:%d", i, bta_av_cb.rcb[i].handle, bta_av_cb.rcb[i].status, bta_av_cb.rcb[i].shdl, bta_av_cb.rcb[i].lidx); if (bta_av_cb.rcb[i].shdl == index + 1) { bta_av_del_rc(&bta_av_cb.rcb[i]); break; } } if (p_cb->conn_audio == 0 && p_cb->conn_video == 0) { /* if both channels are not connected, * close all RC channels */ bta_av_close_all_rc(p_cb); } /* if the AVRCP is no longer listening, create the listening channel */ if (bta_av_cb.rc_acp_handle == BTA_AV_RC_HANDLE_NONE && bta_av_cb.features & BTA_AV_FEAT_RCTG) { bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1); } } APPL_TRACE_DEBUG("bta_av_conn_chg audio:%x video:%x up:%d conn_msk:0x%x chk_restore:%d audio_open_cnt:%d", p_cb->conn_audio, p_cb->conn_video, p_data->conn_chg.is_up, conn_msk, chk_restore, p_cb->audio_open_cnt); if (chk_restore) { if (p_cb->audio_open_cnt == 1) { /* one audio channel goes down and there's one audio channel remains open. * restore the switch role in default link policy */ bta_sys_set_default_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH); /* allow role switch, if this is the last connection */ bta_av_restore_switch(); } if (p_cb->audio_open_cnt) { /* adjust flush timeout settings to longer period */ 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) { /* 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_disable ** ** Description disable AV. ** ** Returns void ** *******************************************************************************/ void bta_av_disable(tBTA_AV_CB *p_cb, tBTA_AV_DATA *p_data) { BT_HDR hdr; UINT16 xx; UNUSED(p_data); p_cb->disabling = TRUE; bta_av_close_all_rc(p_cb); utl_freebuf((void **) &p_cb->p_disc_db); /* disable audio/video - de-register all channels, * expect BTA_AV_DEREG_COMP_EVT when deregister is complete */ for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) { hdr.layer_specific = xx + 1; bta_av_api_deregister((tBTA_AV_DATA *)&hdr); } bta_sys_free_timer(&p_cb->sig_tmr); memset(&p_cb->sig_tmr, 0, sizeof(TIMER_LIST_ENT)); bta_sys_free_timer(&p_cb->acp_sig_tmr); memset(&p_cb->acp_sig_tmr, 0, sizeof(TIMER_LIST_ENT)); } /******************************************************************************* ** ** Function bta_av_api_disconnect ** ** Description . ** ** Returns void ** *******************************************************************************/ void bta_av_api_disconnect(tBTA_AV_DATA *p_data) { AVDT_DisconnectReq(p_data->api_discnt.bd_addr, bta_av_conn_cback); bta_sys_stop_timer(&bta_av_cb.sig_tmr); } /******************************************************************************* ** ** Function bta_av_sig_chg ** ** Description process AVDT signal channel up/down. ** ** Returns void ** *******************************************************************************/ void bta_av_sig_chg(tBTA_AV_DATA *p_data) { UINT16 event = p_data->str_msg.hdr.layer_specific; tBTA_AV_CB *p_cb = &bta_av_cb; int xx; UINT8 mask; tBTA_AV_LCB *p_lcb = NULL; APPL_TRACE_DEBUG("bta_av_sig_chg event: %d", event); if (event == AVDT_CONNECT_IND_EVT) { p_lcb = bta_av_find_lcb(p_data->str_msg.bd_addr, BTA_AV_LCB_FIND); if (!p_lcb) { /* if the address does not have an LCB yet, alloc one */ for (xx = 0; xx < BTA_AV_NUM_LINKS; xx++) { mask = 1 << xx; APPL_TRACE_DEBUG("conn_lcb: 0x%x", p_cb->conn_lcb); /* look for a p_lcb with its p_scb registered */ if ((!(mask & p_cb->conn_lcb)) && (p_cb->p_scb[xx] != NULL)) { p_lcb = &p_cb->lcb[xx]; p_lcb->lidx = xx + 1; bdcpy(p_lcb->addr, p_data->str_msg.bd_addr); p_lcb->conn_msk = 0; /* clear the connect mask */ /* start listening when the signal channel is open */ if (p_cb->features & BTA_AV_FEAT_RCTG) { bta_av_rc_create(p_cb, AVCT_ACP, 0, p_lcb->lidx); } /* this entry is not used yet. */ p_cb->conn_lcb |= mask; /* mark it as used */ APPL_TRACE_DEBUG("start sig timer %d", p_data->hdr.offset); if (p_data->hdr.offset == AVDT_ACP) { APPL_TRACE_DEBUG("Incoming L2CAP acquired, set state as incoming"); bdcpy(p_cb->p_scb[xx]->peer_addr, p_data->str_msg.bd_addr); p_cb->p_scb[xx]->use_rc = TRUE; /* allowing RC for incoming connection */ bta_av_ssm_execute(p_cb->p_scb[xx], BTA_AV_ACP_CONNECT_EVT, p_data); /* The Pending Event should be sent as soon as the L2CAP signalling channel * is set up, which is NOW. Earlier this was done only after * BTA_AV_SIG_TIME_VAL milliseconds. * The following function shall send the event and start the recurring timer */ bta_av_sig_timer(NULL); /* Possible collision : need to avoid outgoing processing while the timer is running */ p_cb->p_scb[xx]->coll_mask = BTA_AV_COLL_INC_TMR; p_cb->acp_sig_tmr.param = (UINT32)xx; p_cb->acp_sig_tmr.p_cback = (TIMER_CBACK *)&bta_av_acp_sig_timer_cback; bta_sys_start_timer(&p_cb->acp_sig_tmr, 0, BTA_AV_ACP_SIG_TIME_VAL); } break; } } /* check if we found something */ if (xx == BTA_AV_NUM_LINKS) { /* We do not have scb for this avdt connection. */ /* Silently close the connection. */ APPL_TRACE_ERROR("av scb not available for avdt connection"); AVDT_DisconnectReq (p_data->str_msg.bd_addr, NULL); return; } } } #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) else if (event == BTA_AR_AVDT_CONN_EVT) { bta_sys_stop_timer(&bta_av_cb.sig_tmr); } #endif else { /* disconnected. */ p_lcb = bta_av_find_lcb(p_data->str_msg.bd_addr, BTA_AV_LCB_FREE); if (p_lcb && p_lcb->conn_msk) { APPL_TRACE_DEBUG("conn_msk: 0x%x", p_lcb->conn_msk); /* clean up ssm */ for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) { mask = 1 << (xx + 1); if ((mask & p_lcb->conn_msk) && (p_cb->p_scb[xx]) && (bdcmp(p_cb->p_scb[xx]->peer_addr, p_data->str_msg.bd_addr) == 0)) { p_cb->p_scb[xx]->disc_rsn = p_data->str_msg.hdr.offset; bta_av_ssm_execute(p_cb->p_scb[xx], BTA_AV_AVDT_DISCONNECT_EVT, NULL); } } } } APPL_TRACE_DEBUG("conn_lcb: 0x%x", p_cb->conn_lcb); } /******************************************************************************* ** ** Function bta_av_sig_timer ** ** Description process the signal channel timer. This timer is started ** when the AVDTP signal channel is connected. If no profile ** is connected, the timer goes off every BTA_AV_SIG_TIME_VAL ** ** Returns void ** *******************************************************************************/ void bta_av_sig_timer(tBTA_AV_DATA *p_data) { tBTA_AV_CB *p_cb = &bta_av_cb; int xx; UINT8 mask; tBTA_AV_LCB *p_lcb = NULL; tBTA_AV_PEND pend; UNUSED(p_data); APPL_TRACE_DEBUG("bta_av_sig_timer"); for (xx = 0; xx < BTA_AV_NUM_LINKS; xx++) { mask = 1 << xx; if (mask & p_cb->conn_lcb) { /* this entry is used. check if it is connected */ p_lcb = &p_cb->lcb[xx]; if (!p_lcb->conn_msk) { bta_sys_start_timer(&p_cb->sig_tmr, BTA_AV_SIG_TIMER_EVT, BTA_AV_SIG_TIME_VAL); bdcpy(pend.bd_addr, p_lcb->addr); (*p_cb->p_cback)(BTA_AV_PENDING_EVT, (tBTA_AV *) &pend); } } } } /******************************************************************************* ** ** Function bta_av_acp_sig_timer_cback ** ** Description Process the timeout when SRC is accepting connection ** and SNK did not start signalling. ** ** Returns void ** *******************************************************************************/ static void bta_av_acp_sig_timer_cback (TIMER_LIST_ENT *p_tle) { UINT8 inx = (UINT8)p_tle->param; tBTA_AV_CB *p_cb = &bta_av_cb; tBTA_AV_SCB *p_scb = NULL; tBTA_AV_API_OPEN *p_buf; if (inx < BTA_AV_NUM_STRS) { p_scb = p_cb->p_scb[inx]; } if (p_scb) { APPL_TRACE_DEBUG("bta_av_acp_sig_timer_cback, coll_mask = 0x%02X", p_scb->coll_mask); if (p_scb->coll_mask & BTA_AV_COLL_INC_TMR) { p_scb->coll_mask &= ~BTA_AV_COLL_INC_TMR; if (bta_av_is_scb_opening(p_scb)) { if (p_scb->p_disc_db) { /* We are still doing SDP. Run the timer again. */ p_scb->coll_mask |= BTA_AV_COLL_INC_TMR; p_cb->acp_sig_tmr.param = (UINT32)inx; p_cb->acp_sig_tmr.p_cback = (TIMER_CBACK *)&bta_av_acp_sig_timer_cback; bta_sys_start_timer(&p_cb->acp_sig_tmr, 0, BTA_AV_ACP_SIG_TIME_VAL); } else { /* SNK did not start signalling, resume signalling process. */ bta_av_discover_req (p_scb, NULL); } } else if (bta_av_is_scb_incoming(p_scb)) { /* Stay in incoming state if SNK does not start signalling */ /* API open was called right after SNK opened L2C connection. */ if (p_scb->coll_mask & BTA_AV_COLL_API_CALLED) { p_scb->coll_mask &= ~BTA_AV_COLL_API_CALLED; /* BTA_AV_API_OPEN_EVT */ if ((p_buf = (tBTA_AV_API_OPEN *) osi_malloc(sizeof(tBTA_AV_API_OPEN))) != NULL) { memcpy(p_buf, &(p_scb->open_api), sizeof(tBTA_AV_API_OPEN)); bta_sys_sendmsg(p_buf); } } } } } } /******************************************************************************* ** ** Function bta_av_check_peer_features ** ** Description check supported features on the peer device from the SDP record ** and return the feature mask ** ** Returns tBTA_AV_FEAT peer device feature mask ** *******************************************************************************/ tBTA_AV_FEAT bta_av_check_peer_features (UINT16 service_uuid) { tBTA_AV_FEAT peer_features = 0; tBTA_AV_CB *p_cb = &bta_av_cb; tSDP_DISC_REC *p_rec = NULL; tSDP_DISC_ATTR *p_attr; UINT16 peer_rc_version = 0; UINT16 categories = 0; APPL_TRACE_DEBUG("bta_av_check_peer_features service_uuid:x%x", service_uuid); /* loop through all records we found */ while (TRUE) { /* get next record; if none found, we're done */ if ((p_rec = SDP_FindServiceInDb(p_cb->p_disc_db, service_uuid, p_rec)) == NULL) { break; } if (( SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_CLASS_ID_LIST)) != NULL) { /* find peer features */ if (SDP_FindServiceInDb(p_cb->p_disc_db, UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL)) { peer_features |= BTA_AV_FEAT_RCCT; } if (SDP_FindServiceInDb(p_cb->p_disc_db, UUID_SERVCLASS_AV_REM_CTRL_TARGET, NULL)) { peer_features |= BTA_AV_FEAT_RCTG; } } if (( SDP_FindAttributeInRec(p_rec, ATTR_ID_BT_PROFILE_DESC_LIST)) != NULL) { /* get profile version (if failure, version parameter is not updated) */ SDP_FindProfileVersionInRec(p_rec, UUID_SERVCLASS_AV_REMOTE_CONTROL, &peer_rc_version); APPL_TRACE_DEBUG("peer_rc_version 0x%x", peer_rc_version); if (peer_rc_version >= AVRC_REV_1_3) { peer_features |= (BTA_AV_FEAT_VENDOR | BTA_AV_FEAT_METADATA); } if (peer_rc_version >= AVRC_REV_1_4) { peer_features |= (BTA_AV_FEAT_ADV_CTRL); /* get supported categories */ if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_FEATURES)) != NULL) { categories = p_attr->attr_value.v.u16; if (categories & AVRC_SUPF_CT_BROWSE) { peer_features |= (BTA_AV_FEAT_BROWSE); } } } } } APPL_TRACE_DEBUG("peer_features:x%x", peer_features); return peer_features; } /******************************************************************************* ** ** Function bta_av_rc_disc_done ** ** Description Handle AVRCP service discovery results. If matching ** service found, open AVRCP connection. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_disc_done(tBTA_AV_DATA *p_data) { tBTA_AV_CB *p_cb = &bta_av_cb; tBTA_AV_SCB *p_scb = NULL; tBTA_AV_LCB *p_lcb; tBTA_AV_RC_OPEN rc_open; tBTA_AV_RC_FEAT rc_feat; UINT8 rc_handle; tBTA_AV_FEAT peer_features; /* peer features mask */ UNUSED(p_data); APPL_TRACE_DEBUG("bta_av_rc_disc_done disc:x%x", p_cb->disc); if (!p_cb->disc) { return; } if ((p_cb->disc & BTA_AV_CHNL_MSK) == BTA_AV_CHNL_MSK) { /* this is the rc handle/index to tBTA_AV_RCB */ rc_handle = p_cb->disc & (~BTA_AV_CHNL_MSK); } else { /* Validate array index*/ if (((p_cb->disc & BTA_AV_HNDL_MSK) - 1) < BTA_AV_NUM_STRS) { p_scb = p_cb->p_scb[(p_cb->disc & BTA_AV_HNDL_MSK) - 1]; } if (p_scb) { rc_handle = p_scb->rc_handle; } else { p_cb->disc = 0; return; } } APPL_TRACE_DEBUG("rc_handle %d", rc_handle); /* check peer version and whether support CT and TG role */ peer_features = bta_av_check_peer_features (UUID_SERVCLASS_AV_REMOTE_CONTROL); if ((p_cb->features & BTA_AV_FEAT_ADV_CTRL) && ((peer_features & BTA_AV_FEAT_ADV_CTRL) == 0)) { /* if we support advance control and peer does not, check their support on TG role * some implementation uses 1.3 on CT ans 1.4 on TG */ peer_features |= bta_av_check_peer_features (UUID_SERVCLASS_AV_REM_CTRL_TARGET); } p_cb->disc = 0; utl_freebuf((void **) &p_cb->p_disc_db); APPL_TRACE_DEBUG("peer_features 0x%x, features 0x%x", peer_features, p_cb->features); /* if we have no rc connection */ if (rc_handle == BTA_AV_RC_HANDLE_NONE) { if (p_scb) { /* if peer remote control service matches ours and USE_RC is TRUE */ if ((((p_cb->features & BTA_AV_FEAT_RCCT) && (peer_features & BTA_AV_FEAT_RCTG)) || ((p_cb->features & BTA_AV_FEAT_RCTG) && (peer_features & BTA_AV_FEAT_RCCT))) ) { p_lcb = bta_av_find_lcb(p_scb->peer_addr, BTA_AV_LCB_FIND); if (p_lcb) { rc_handle = bta_av_rc_create(p_cb, AVCT_INT, (UINT8)(p_scb->hdi + 1), p_lcb->lidx); p_cb->rcb[rc_handle].peer_features = peer_features; } #if (BT_USE_TRACES == TRUE || BT_TRACE_APPL == TRUE) else { APPL_TRACE_ERROR("can not find LCB!!"); } #endif } else if (p_scb->use_rc) { /* can not find AVRC on peer device. report failure */ p_scb->use_rc = FALSE; bdcpy(rc_open.peer_addr, p_scb->peer_addr); rc_open.peer_features = 0; rc_open.sdp_disc_done = FALSE; rc_open.status = BTA_AV_FAIL_SDP; (*p_cb->p_cback)(BTA_AV_RC_OPEN_EVT, (tBTA_AV *) &rc_open); } } } else { p_cb->rcb[rc_handle].peer_features = peer_features; rc_feat.rc_handle = rc_handle; rc_feat.peer_features = peer_features; (*p_cb->p_cback)(BTA_AV_RC_FEAT_EVT, (tBTA_AV *) &rc_feat); } } /******************************************************************************* ** ** Function bta_av_rc_closed ** ** Description Set AVRCP state to closed. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_closed(tBTA_AV_DATA *p_data) { tBTA_AV_CB *p_cb = &bta_av_cb; tBTA_AV_RC_CLOSE rc_close; tBTA_AV_RC_CONN_CHG *p_msg = (tBTA_AV_RC_CONN_CHG *)p_data; tBTA_AV_RCB *p_rcb; tBTA_AV_SCB *p_scb; int i; BOOLEAN conn = FALSE; tBTA_AV_LCB *p_lcb; rc_close.rc_handle = BTA_AV_RC_HANDLE_NONE; p_scb = NULL; APPL_TRACE_DEBUG("bta_av_rc_closed rc_handle:%d", p_msg->handle); for (i = 0; i < BTA_AV_NUM_RCB; i++) { p_rcb = &p_cb->rcb[i]; APPL_TRACE_DEBUG("bta_av_rc_closed rcb[%d] rc_handle:%d, status=0x%x", i, p_rcb->handle, p_rcb->status); if (p_rcb->handle == p_msg->handle) { rc_close.rc_handle = i; p_rcb->status &= ~BTA_AV_RC_CONN_MASK; p_rcb->peer_features = 0; APPL_TRACE_DEBUG(" shdl:%d, lidx:%d", p_rcb->shdl, p_rcb->lidx); if (p_rcb->shdl) { if ((p_rcb->shdl - 1) < BTA_AV_NUM_STRS) { p_scb = bta_av_cb.p_scb[p_rcb->shdl - 1]; } if (p_scb) { bdcpy(rc_close.peer_addr, p_scb->peer_addr); if (p_scb->rc_handle == p_rcb->handle) { p_scb->rc_handle = BTA_AV_RC_HANDLE_NONE; } APPL_TRACE_DEBUG("shdl:%d, srch:%d", p_rcb->shdl, p_scb->rc_handle); } p_rcb->shdl = 0; } else if (p_rcb->lidx == (BTA_AV_NUM_LINKS + 1) ) { /* if the RCB uses the extra LCB, use the addr for event and clean it */ p_lcb = &p_cb->lcb[BTA_AV_NUM_LINKS]; bdcpy(rc_close.peer_addr, p_msg->peer_addr); APPL_TRACE_DEBUG("rc_only closed bd_addr:%02x-%02x-%02x-%02x-%02x-%02x", p_msg->peer_addr[0], p_msg->peer_addr[1], p_msg->peer_addr[2], p_msg->peer_addr[3], p_msg->peer_addr[4], p_msg->peer_addr[5]); p_lcb->conn_msk = 0; p_lcb->lidx = 0; } p_rcb->lidx = 0; if ((p_rcb->status & BTA_AV_RC_ROLE_MASK) == BTA_AV_RC_ROLE_INT) { /* AVCT CCB is deallocated */ p_rcb->handle = BTA_AV_RC_HANDLE_NONE; p_rcb->status = 0; } else { /* AVCT CCB is still there. dealloc */ bta_av_del_rc(p_rcb); /* if the AVRCP is no longer listening, create the listening channel */ if (bta_av_cb.rc_acp_handle == BTA_AV_RC_HANDLE_NONE && bta_av_cb.features & BTA_AV_FEAT_RCTG) { bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1); } } } else if ((p_rcb->handle != BTA_AV_RC_HANDLE_NONE) && (p_rcb->status & BTA_AV_RC_CONN_MASK)) { /* at least one channel is still connected */ conn = TRUE; } } if (!conn) { /* no AVRC channels are connected, go back to INIT state */ bta_av_sm_execute(p_cb, BTA_AV_AVRC_NONE_EVT, NULL); } if (rc_close.rc_handle == BTA_AV_RC_HANDLE_NONE) { rc_close.rc_handle = p_msg->handle; bdcpy(rc_close.peer_addr, p_msg->peer_addr); } (*p_cb->p_cback)(BTA_AV_RC_CLOSE_EVT, (tBTA_AV *) &rc_close); } /******************************************************************************* ** ** Function bta_av_rc_disc ** ** Description start AVRC SDP discovery. ** ** Returns void ** *******************************************************************************/ void bta_av_rc_disc(UINT8 disc) { tBTA_AV_CB *p_cb = &bta_av_cb; tAVRC_SDP_DB_PARAMS db_params; UINT16 attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, ATTR_ID_BT_PROFILE_DESC_LIST, ATTR_ID_SUPPORTED_FEATURES }; UINT8 hdi; tBTA_AV_SCB *p_scb; UINT8 *p_addr = NULL; UINT8 rc_handle; APPL_TRACE_DEBUG("bta_av_rc_disc 0x%x, %d", disc, bta_av_cb.disc); if ((bta_av_cb.disc != 0) || (disc == 0)) { return; } if ((disc & BTA_AV_CHNL_MSK) == BTA_AV_CHNL_MSK) { /* this is the rc handle/index to tBTA_AV_RCB */ rc_handle = disc & (~BTA_AV_CHNL_MSK); if (p_cb->rcb[rc_handle].lidx) { p_addr = p_cb->lcb[p_cb->rcb[rc_handle].lidx - 1].addr; } } else { hdi = (disc & BTA_AV_HNDL_MSK) - 1; p_scb = p_cb->p_scb[hdi]; if (p_scb) { APPL_TRACE_DEBUG("rc_handle %d", p_scb->rc_handle); p_addr = p_scb->peer_addr; } } if (p_addr) { /* allocate discovery database */ if (p_cb->p_disc_db == NULL) { p_cb->p_disc_db = (tSDP_DISCOVERY_DB *) osi_malloc(BTA_AV_DISC_BUF_SIZE); } if (p_cb->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_cb->p_disc_db; db_params.p_attrs = attr_list; /* searching for UUID_SERVCLASS_AV_REMOTE_CONTROL gets both TG and CT */ if (AVRC_FindService(UUID_SERVCLASS_AV_REMOTE_CONTROL, p_addr, &db_params, bta_av_avrc_sdp_cback) == AVRC_SUCCESS) { p_cb->disc = disc; APPL_TRACE_DEBUG("disc %d", p_cb->disc); } } } } /******************************************************************************* ** ** Function bta_av_dereg_comp ** ** Description deregister complete. free the stream control block. ** ** Returns void ** *******************************************************************************/ void bta_av_dereg_comp(tBTA_AV_DATA *p_data) { tBTA_AV_CB *p_cb = &bta_av_cb; tBTA_AV_SCB *p_scb; tBTA_UTL_COD cod; UINT8 mask; BT_HDR *p_buf; /* find the stream control block */ p_scb = bta_av_hndl_to_scb(p_data->hdr.layer_specific); if (p_scb) { APPL_TRACE_DEBUG("deregistered %d(h%d)", p_scb->chnl, p_scb->hndl); mask = BTA_AV_HNDL_TO_MSK(p_scb->hdi); if (p_scb->chnl == BTA_AV_CHNL_AUDIO) { p_cb->reg_audio &= ~mask; if ((p_cb->conn_audio & mask) && bta_av_cb.audio_open_cnt) { /* this channel is still marked as open. decrease the count */ bta_av_cb.audio_open_cnt--; } p_cb->conn_audio &= ~mask; if (p_scb->q_tag == BTA_AV_Q_TAG_STREAM && p_scb->a2d_list) { /* make sure no buffers are in a2d_list */ while (!list_is_empty(p_scb->a2d_list)) { p_buf = (BT_HDR *)list_front(p_scb->a2d_list); list_remove(p_scb->a2d_list, p_buf); osi_free(p_buf); } } /* remove the A2DP SDP record, if no more audio stream is left */ if (!p_cb->reg_audio) { #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) bta_ar_dereg_avrc (UUID_SERVCLASS_AV_REMOTE_CONTROL, BTA_ID_AV); #endif bta_av_del_sdp_rec(&p_cb->sdp_a2d_handle); bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SOURCE); #if (BTA_AV_SINK_INCLUDED == TRUE) bta_av_del_sdp_rec(&p_cb->sdp_a2d_snk_handle); bta_sys_remove_uuid(UUID_SERVCLASS_AUDIO_SINK); #endif } } else { p_cb->reg_video &= ~mask; /* make sure that this channel is not connected */ p_cb->conn_video &= ~mask; /* remove the VDP SDP record, (only one video stream at most) */ bta_av_del_sdp_rec(&p_cb->sdp_vdp_handle); bta_sys_remove_uuid(UUID_SERVCLASS_VIDEO_SOURCE); } /* make sure that the timer is not active */ bta_sys_stop_timer(&p_scb->timer); list_free(p_scb->a2d_list); p_scb->a2d_list = NULL; utl_freebuf((void **)&p_cb->p_scb[p_scb->hdi]); } APPL_TRACE_DEBUG("audio 0x%x, video: 0x%x, disable:%d", p_cb->reg_audio, p_cb->reg_video, p_cb->disabling); /* if no stream control block is active */ if ((p_cb->reg_audio + p_cb->reg_video) == 0) { #if( defined BTA_AR_INCLUDED ) && (BTA_AR_INCLUDED == TRUE) /* deregister from AVDT */ bta_ar_dereg_avdt(BTA_ID_AV); /* deregister from AVCT */ bta_ar_dereg_avrc (UUID_SERVCLASS_AV_REM_CTRL_TARGET, BTA_ID_AV); bta_ar_dereg_avct(BTA_ID_AV); #endif if (p_cb->disabling) { p_cb->disabling = FALSE; bta_av_cb.features = 0; } /* Clear the Capturing/Rendering service class bit */ if (p_data->api_reg.tsep == AVDT_TSEP_SRC) { cod.service = BTM_COD_SERVICE_CAPTURING | BTM_COD_SERVICE_AUDIO; } else { #if (BTA_AV_SINK_INCLUDED == TRUE) cod.service = BTM_COD_SERVICE_RENDERING | BTM_COD_SERVICE_AUDIO; #endif } utl_set_device_class(&cod, BTA_UTL_CLR_COD_SERVICE_CLASS); } } #endif /* BTA_AV_INCLUDED */