| /****************************************************************************** |
| * |
| * Copyright (C) 2004-2012 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * This is the main implementation file for the BTA advanced audio/video. |
| * |
| ******************************************************************************/ |
| |
| #define LOG_TAG "bt_bta_av" |
| |
| #include <base/logging.h> |
| #include <string.h> |
| |
| #include "bt_target.h" |
| #include "osi/include/log.h" |
| #include "osi/include/osi.h" |
| #include "osi/include/properties.h" |
| |
| #include "bta_av_co.h" |
| #include "bta_av_int.h" |
| #include "btif/include/btif_av_co.h" |
| #include "l2c_api.h" |
| #include "l2cdefs.h" |
| #include "utl.h" |
| |
| #if (BTA_AR_INCLUDED == TRUE) |
| #include "bta_ar_api.h" |
| #endif |
| |
| /***************************************************************************** |
| * Constants and types |
| ****************************************************************************/ |
| |
| #ifndef BTA_AV_RET_TOUT |
| #define BTA_AV_RET_TOUT 4 |
| #endif |
| |
| #ifndef BTA_AV_SIG_TOUT |
| #define BTA_AV_SIG_TOUT 4 |
| #endif |
| |
| #ifndef BTA_AV_IDLE_TOUT |
| #define BTA_AV_IDLE_TOUT 10 |
| #endif |
| |
| /* the delay time in milliseconds to retry role switch */ |
| #ifndef BTA_AV_RS_TIME_VAL |
| #define BTA_AV_RS_TIME_VAL 1000 |
| #endif |
| |
| #ifndef AVRCP_VERSION_PROPERTY |
| #define AVRCP_VERSION_PROPERTY "persist.bluetooth.avrcpversion" |
| #endif |
| |
| #ifndef AVRCP_1_6_STRING |
| #define AVRCP_1_6_STRING "avrcp16" |
| #endif |
| |
| #ifndef AVRCP_1_5_STRING |
| #define AVRCP_1_5_STRING "avrcp15" |
| #endif |
| |
| #ifndef AVRCP_1_4_STRING |
| #define AVRCP_1_4_STRING "avrcp14" |
| #endif |
| |
| #ifndef AVRCP_1_3_STRING |
| #define AVRCP_1_3_STRING "avrcp13" |
| #endif |
| |
| /* state machine states */ |
| enum { BTA_AV_INIT_ST, BTA_AV_OPEN_ST }; |
| |
| /* state machine action enumeration list */ |
| enum { |
| BTA_AV_DISABLE, |
| BTA_AV_RC_OPENED, |
| BTA_AV_RC_REMOTE_CMD, |
| BTA_AV_RC_VENDOR_CMD, |
| BTA_AV_RC_VENDOR_RSP, |
| BTA_AV_RC_FREE_RSP, |
| BTA_AV_RC_FREE_BROWSE_MSG, |
| BTA_AV_RC_META_RSP, |
| BTA_AV_RC_MSG, |
| BTA_AV_RC_CLOSE, |
| BTA_AV_RC_BROWSE_CLOSE, |
| BTA_AV_NUM_ACTIONS |
| }; |
| |
| #define BTA_AV_IGNORE BTA_AV_NUM_ACTIONS |
| |
| /* type for action functions */ |
| typedef void (*tBTA_AV_ACTION)(tBTA_AV_CB* p_cb, tBTA_AV_DATA* p_data); |
| |
| /* action functions */ |
| const tBTA_AV_ACTION bta_av_action[] = { |
| bta_av_disable, |
| bta_av_rc_opened, |
| bta_av_rc_remote_cmd, |
| bta_av_rc_vendor_cmd, |
| bta_av_rc_vendor_rsp, |
| bta_av_rc_free_rsp, |
| bta_av_rc_free_browse_msg, |
| bta_av_rc_meta_rsp, |
| bta_av_rc_msg, |
| bta_av_rc_close, |
| }; |
| |
| /* state table information */ |
| #define BTA_AV_ACTION_COL 0 /* position of actions */ |
| #define BTA_AV_NEXT_STATE 1 /* position of next state */ |
| #define BTA_AV_NUM_COLS 2 /* number of columns in state tables */ |
| |
| /* state table for init state */ |
| static const uint8_t bta_av_st_init[][BTA_AV_NUM_COLS] = { |
| /* Event Action 1 Next state */ |
| /* API_DISABLE_EVT */ {BTA_AV_DISABLE, BTA_AV_INIT_ST}, |
| /* API_REMOTE_CMD_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST}, |
| /* API_VENDOR_CMD_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST}, |
| /* API_VENDOR_RSP_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST}, |
| /* API_META_RSP_EVT */ {BTA_AV_RC_FREE_RSP, BTA_AV_INIT_ST}, |
| /* API_RC_CLOSE_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST}, |
| /* AVRC_OPEN_EVT */ {BTA_AV_RC_OPENED, BTA_AV_OPEN_ST}, |
| /* AVRC_MSG_EVT */ {BTA_AV_RC_FREE_BROWSE_MSG, BTA_AV_INIT_ST}, |
| /* AVRC_NONE_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST}, |
| }; |
| |
| /* state table for open state */ |
| static const uint8_t bta_av_st_open[][BTA_AV_NUM_COLS] = { |
| /* Event Action 1 Next state */ |
| /* API_DISABLE_EVT */ {BTA_AV_DISABLE, BTA_AV_INIT_ST}, |
| /* API_REMOTE_CMD_EVT */ {BTA_AV_RC_REMOTE_CMD, BTA_AV_OPEN_ST}, |
| /* API_VENDOR_CMD_EVT */ {BTA_AV_RC_VENDOR_CMD, BTA_AV_OPEN_ST}, |
| /* API_VENDOR_RSP_EVT */ {BTA_AV_RC_VENDOR_RSP, BTA_AV_OPEN_ST}, |
| /* API_META_RSP_EVT */ {BTA_AV_RC_META_RSP, BTA_AV_OPEN_ST}, |
| /* API_RC_CLOSE_EVT */ {BTA_AV_RC_CLOSE, BTA_AV_OPEN_ST}, |
| /* AVRC_OPEN_EVT */ {BTA_AV_RC_OPENED, BTA_AV_OPEN_ST}, |
| /* AVRC_MSG_EVT */ {BTA_AV_RC_MSG, BTA_AV_OPEN_ST}, |
| /* AVRC_NONE_EVT */ {BTA_AV_IGNORE, BTA_AV_INIT_ST}, |
| }; |
| |
| /* type for state table */ |
| typedef const uint8_t (*tBTA_AV_ST_TBL)[BTA_AV_NUM_COLS]; |
| |
| /* state table */ |
| static const tBTA_AV_ST_TBL bta_av_st_tbl[] = {bta_av_st_init, bta_av_st_open}; |
| |
| typedef void (*tBTA_AV_NSM_ACT)(tBTA_AV_DATA* p_data); |
| static void bta_av_api_enable(tBTA_AV_DATA* p_data); |
| static void bta_av_api_register(tBTA_AV_DATA* p_data); |
| static void bta_av_ci_data(tBTA_AV_DATA* p_data); |
| #if (AVDT_REPORTING == TRUE) |
| static void bta_av_rpc_conn(tBTA_AV_DATA* p_data); |
| #endif |
| static void bta_av_api_to_ssm(tBTA_AV_DATA* p_data); |
| |
| static void bta_av_sco_chg_cback(tBTA_SYS_CONN_STATUS status, uint8_t id, |
| uint8_t app_id, const RawAddress* peer_addr); |
| static void bta_av_sys_rs_cback(tBTA_SYS_CONN_STATUS status, uint8_t id, |
| uint8_t app_id, const RawAddress* peer_addr); |
| |
| /* action functions */ |
| const tBTA_AV_NSM_ACT bta_av_nsm_act[] = { |
| bta_av_api_enable, /* BTA_AV_API_ENABLE_EVT */ |
| bta_av_api_register, /* BTA_AV_API_REGISTER_EVT */ |
| bta_av_api_deregister, /* BTA_AV_API_DEREGISTER_EVT */ |
| bta_av_api_disconnect, /* BTA_AV_API_DISCONNECT_EVT */ |
| bta_av_ci_data, /* BTA_AV_CI_SRC_DATA_READY_EVT */ |
| bta_av_sig_chg, /* BTA_AV_SIG_CHG_EVT */ |
| bta_av_signalling_timer, /* BTA_AV_SIGNALLING_TIMER_EVT */ |
| bta_av_rc_disc_done, /* BTA_AV_SDP_AVRC_DISC_EVT */ |
| bta_av_rc_closed, /* BTA_AV_AVRC_CLOSE_EVT */ |
| bta_av_rc_browse_opened, /* BTA_AV_AVRC_BROWSE_OPEN_EVT */ |
| bta_av_rc_browse_closed, /* BTA_AV_AVRC_BROWSE_CLOSE_EVT */ |
| bta_av_conn_chg, /* BTA_AV_CONN_CHG_EVT */ |
| bta_av_dereg_comp, /* BTA_AV_DEREG_COMP_EVT */ |
| #if (AVDT_REPORTING == TRUE) |
| bta_av_rpc_conn, /* BTA_AV_AVDT_RPT_CONN_EVT */ |
| #endif |
| bta_av_api_to_ssm, /* BTA_AV_API_START_EVT */ |
| bta_av_api_to_ssm, /* BTA_AV_API_STOP_EVT */ |
| }; |
| |
| /***************************************************************************** |
| * Global data |
| ****************************************************************************/ |
| |
| /* AV control block */ |
| tBTA_AV_CB bta_av_cb; |
| |
| static const char* bta_av_st_code(uint8_t state); |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_api_enable |
| * |
| * Description Handle an API enable event. |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_av_api_enable(tBTA_AV_DATA* p_data) { |
| /* initialize control block */ |
| memset(&bta_av_cb, 0, sizeof(tBTA_AV_CB)); |
| |
| for (int i = 0; i < BTA_AV_NUM_RCB; i++) |
| bta_av_cb.rcb[i].handle = BTA_AV_RC_HANDLE_NONE; |
| |
| bta_av_cb.rc_acp_handle = BTA_AV_RC_HANDLE_NONE; |
| |
| /* |
| * TODO: The "disable" event handling is missing - there we need |
| * to alarm_free() the alarms below. |
| */ |
| bta_av_cb.link_signalling_timer = alarm_new("bta_av.link_signalling_timer"); |
| bta_av_cb.accept_signalling_timer = |
| alarm_new("bta_av.accept_signalling_timer"); |
| |
| /* store parameters */ |
| bta_av_cb.p_cback = p_data->api_enable.p_cback; |
| bta_av_cb.features = p_data->api_enable.features; |
| bta_av_cb.sec_mask = p_data->api_enable.sec_mask; |
| |
| tBTA_AV_ENABLE enable; |
| enable.features = bta_av_cb.features; |
| |
| /* Register for SCO change event */ |
| if (!(bta_av_cb.features & BTA_AV_FEAT_NO_SCO_SSPD)) { |
| bta_sys_sco_register(bta_av_sco_chg_cback); |
| } |
| |
| /* call callback with enable event */ |
| tBTA_AV bta_av_data; |
| bta_av_data.enable = enable; |
| (*bta_av_cb.p_cback)(BTA_AV_ENABLE_EVT, &bta_av_data); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_addr_to_scb |
| * |
| * Description find the stream control block by the peer addr |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static tBTA_AV_SCB* bta_av_addr_to_scb(const RawAddress& bd_addr) { |
| tBTA_AV_SCB* p_scb = NULL; |
| int xx; |
| |
| for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) { |
| if (bta_av_cb.p_scb[xx]) { |
| if (bd_addr == bta_av_cb.p_scb[xx]->peer_addr) { |
| p_scb = bta_av_cb.p_scb[xx]; |
| break; |
| } |
| } |
| } |
| return p_scb; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_hndl_to_scb |
| * |
| * Description find the stream control block by the handle |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| tBTA_AV_SCB* bta_av_hndl_to_scb(uint16_t handle) { |
| tBTA_AV_HNDL hndl = (tBTA_AV_HNDL)handle; |
| tBTA_AV_SCB* p_scb = NULL; |
| uint8_t idx = (hndl & BTA_AV_HNDL_MSK); |
| |
| if (idx && (idx <= BTA_AV_NUM_STRS)) { |
| p_scb = bta_av_cb.p_scb[idx - 1]; |
| } |
| return p_scb; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_alloc_scb |
| * |
| * Description allocate stream control block, |
| * register the service to stack |
| * create SDP record |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static tBTA_AV_SCB* bta_av_alloc_scb(tBTA_AV_CHNL chnl) { |
| tBTA_AV_SCB* p_ret = NULL; |
| int xx; |
| tBTA_AV_STATUS sts = BTA_AV_SUCCESS; |
| |
| if (chnl == BTA_AV_CHNL_VIDEO) { |
| if (p_bta_av_cfg->p_act_tbl == NULL || p_bta_av_cfg->p_reg == NULL) { |
| APPL_TRACE_ERROR("Video streaming not supported"); |
| sts = BTA_AV_FAIL; |
| } else { |
| /* allow only one Video channel */ |
| if (bta_av_cb.reg_video) { |
| APPL_TRACE_ERROR("Already registered"); |
| sts = BTA_AV_FAIL; |
| } |
| } |
| } else if (chnl != BTA_AV_CHNL_AUDIO) { |
| APPL_TRACE_ERROR("bad channel: %d", chnl); |
| sts = BTA_AV_FAIL; |
| } |
| |
| if (sts == BTA_AV_SUCCESS) { |
| for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) { |
| if (bta_av_cb.p_scb[xx] == NULL) { |
| /* found an empty spot */ |
| p_ret = (tBTA_AV_SCB*)osi_calloc(sizeof(tBTA_AV_SCB)); |
| p_ret->rc_handle = BTA_AV_RC_HANDLE_NONE; |
| p_ret->chnl = chnl; |
| p_ret->hndl = (tBTA_AV_HNDL)((xx + 1) | chnl); |
| p_ret->hdi = xx; |
| p_ret->a2dp_list = list_new(NULL); |
| p_ret->avrc_ct_timer = alarm_new("bta_av.avrc_ct_timer"); |
| bta_av_cb.p_scb[xx] = p_ret; |
| break; |
| } |
| } |
| } |
| return p_ret; |
| } |
| |
| /******************************************************************************* |
| ******************************************************************************/ |
| void bta_av_conn_cback(UNUSED_ATTR uint8_t handle, const RawAddress* bd_addr, |
| uint8_t event, tAVDT_CTRL* p_data) { |
| uint16_t evt = 0; |
| tBTA_AV_SCB* p_scb = NULL; |
| |
| #if (BTA_AR_INCLUDED == TRUE) |
| if (event == BTA_AR_AVDT_CONN_EVT || event == AVDT_CONNECT_IND_EVT || |
| event == AVDT_DISCONNECT_IND_EVT) |
| #else |
| if (event == AVDT_CONNECT_IND_EVT || event == AVDT_DISCONNECT_IND_EVT) |
| #endif |
| { |
| evt = BTA_AV_SIG_CHG_EVT; |
| if (event == AVDT_DISCONNECT_IND_EVT) { |
| p_scb = bta_av_addr_to_scb(*bd_addr); |
| } else if (event == AVDT_CONNECT_IND_EVT) { |
| APPL_TRACE_DEBUG("%s: CONN_IND is ACP:%d", __func__, |
| p_data->hdr.err_param); |
| } |
| |
| tBTA_AV_STR_MSG* p_msg = |
| (tBTA_AV_STR_MSG*)osi_malloc(sizeof(tBTA_AV_STR_MSG)); |
| p_msg->hdr.event = evt; |
| p_msg->hdr.layer_specific = event; |
| p_msg->hdr.offset = p_data->hdr.err_param; |
| p_msg->bd_addr = *bd_addr; |
| if (p_scb) { |
| APPL_TRACE_DEBUG("scb hndl x%x, role x%x", p_scb->hndl, p_scb->role); |
| } |
| VLOG(1) << "conn_cback bd_addr:" << bd_addr; |
| bta_sys_sendmsg(p_msg); |
| } |
| } |
| |
| #if (AVDT_REPORTING == TRUE) |
| /******************************************************************************* |
| * |
| * Function bta_av_a2dp_report_cback |
| * |
| * Description A2DP report callback. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_av_a2dp_report_cback(UNUSED_ATTR uint8_t handle, |
| UNUSED_ATTR AVDT_REPORT_TYPE type, |
| UNUSED_ATTR tAVDT_REPORT_DATA* p_data) { |
| /* Do not need to handle report data for now. |
| * This empty function is here for conformance reasons. */ |
| } |
| #endif |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_api_register |
| * |
| * Description allocate stream control block, |
| * register the service to stack |
| * create SDP record |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_av_api_register(tBTA_AV_DATA* p_data) { |
| tBTA_AV_REGISTER registr; |
| tBTA_AV_SCB* p_scb; /* stream control block */ |
| tAVDT_REG reg; |
| tAVDT_CS cs; |
| char* p_service_name; |
| tBTA_UTL_COD cod; |
| |
| memset(&cs, 0, sizeof(tAVDT_CS)); |
| |
| registr.status = BTA_AV_FAIL_RESOURCES; |
| registr.app_id = p_data->api_reg.app_id; |
| registr.chnl = (tBTA_AV_CHNL)p_data->hdr.layer_specific; |
| |
| char avrcp_version[PROPERTY_VALUE_MAX] = {0}; |
| osi_property_get(AVRCP_VERSION_PROPERTY, avrcp_version, AVRCP_1_4_STRING); |
| LOG_INFO(LOG_TAG, "AVRCP version used for sdp: \"%s\"", avrcp_version); |
| |
| uint16_t profile_initialized = p_data->api_reg.service_uuid; |
| if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) { |
| p_bta_av_cfg = (tBTA_AV_CFG*)&bta_avk_cfg; |
| } else if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) { |
| p_bta_av_cfg = (tBTA_AV_CFG*)&bta_av_cfg; |
| |
| if (!strncmp(AVRCP_1_3_STRING, avrcp_version, sizeof(AVRCP_1_3_STRING))) { |
| LOG_INFO(LOG_TAG, "AVRCP 1.3 capabilites used"); |
| p_bta_av_cfg = (tBTA_AV_CFG*)&bta_av_cfg_compatibility; |
| } |
| } |
| |
| APPL_TRACE_DEBUG("%s: profile: 0x%x", __func__, profile_initialized); |
| if (p_bta_av_cfg == NULL) { |
| APPL_TRACE_ERROR("AV configuration is null!"); |
| return; |
| } |
| |
| do { |
| p_scb = bta_av_alloc_scb(registr.chnl); |
| if (p_scb == NULL) { |
| APPL_TRACE_ERROR("failed to alloc SCB"); |
| break; |
| } |
| |
| registr.hndl = p_scb->hndl; |
| p_scb->app_id = registr.app_id; |
| |
| /* initialize the stream control block */ |
| registr.status = BTA_AV_SUCCESS; |
| |
| if ((bta_av_cb.reg_audio + bta_av_cb.reg_video) == 0) { |
| /* the first channel registered. register to AVDTP */ |
| reg.ctrl_mtu = p_bta_av_cfg->sig_mtu; |
| reg.ret_tout = BTA_AV_RET_TOUT; |
| reg.sig_tout = BTA_AV_SIG_TOUT; |
| reg.idle_tout = BTA_AV_IDLE_TOUT; |
| reg.sec_mask = bta_av_cb.sec_mask; |
| #if (BTA_AR_INCLUDED == TRUE) |
| bta_ar_reg_avdt(®, bta_av_conn_cback, BTA_ID_AV); |
| #endif |
| bta_sys_role_chg_register(&bta_av_sys_rs_cback); |
| |
| /* create remote control TG service if required */ |
| if (bta_av_cb.features & (BTA_AV_FEAT_RCTG)) { |
| /* register with no authorization; let AVDTP use authorization instead */ |
| #if (BTA_AR_INCLUDED == TRUE) |
| #if (BTA_AV_WITH_AVCTP_AUTHORIZATION == TRUE) |
| bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu, |
| bta_av_cb.sec_mask, BTA_ID_AV); |
| #else |
| bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu, |
| (uint8_t)(bta_av_cb.sec_mask & (~BTA_SEC_AUTHORIZE)), |
| BTA_ID_AV); |
| #endif |
| |
| /* For the Audio Sink role we support additional TG 1.3 to support |
| * absolute volume. |
| */ |
| uint16_t profile_version = AVRC_REV_1_0; |
| |
| if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) { |
| if (!strncmp(AVRCP_1_6_STRING, avrcp_version, |
| sizeof(AVRCP_1_6_STRING))) { |
| profile_version = AVRC_REV_1_6; |
| } else if (!strncmp(AVRCP_1_5_STRING, avrcp_version, |
| sizeof(AVRCP_1_5_STRING))) { |
| profile_version = AVRC_REV_1_5; |
| } else if (!strncmp(AVRCP_1_3_STRING, avrcp_version, |
| sizeof(AVRCP_1_3_STRING))) { |
| profile_version = AVRC_REV_1_3; |
| } else { |
| profile_version = AVRC_REV_1_4; |
| } |
| } else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) { |
| // Initialize AVRCP1.4 to provide Absolute Volume control. |
| profile_version = AVRC_REV_1_4; |
| } |
| |
| bta_ar_reg_avrc( |
| UUID_SERVCLASS_AV_REM_CTRL_TARGET, "AV Remote Control Target", NULL, |
| p_bta_av_cfg->avrc_tg_cat, BTA_ID_AV, |
| (bta_av_cb.features & BTA_AV_FEAT_BROWSE), profile_version); |
| #endif |
| } |
| |
| /* Set the Capturing service class bit */ |
| if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) |
| cod.service = BTM_COD_SERVICE_CAPTURING; |
| else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) |
| cod.service = BTM_COD_SERVICE_RENDERING; |
| utl_set_device_class(&cod, BTA_UTL_SET_COD_SERVICE_CLASS); |
| } /* if 1st channel */ |
| |
| /* get stream configuration and create stream */ |
| cs.cfg.num_codec = 1; |
| cs.nsc_mask = |
| AVDT_NSC_RECONFIG | |
| ((bta_av_cb.features & BTA_AV_FEAT_PROTECT) ? 0 : AVDT_NSC_SECURITY); |
| APPL_TRACE_DEBUG("nsc_mask: 0x%x", cs.nsc_mask); |
| |
| if (p_data->api_reg.p_service_name[0] == 0) { |
| p_service_name = NULL; |
| } else { |
| p_service_name = p_data->api_reg.p_service_name; |
| } |
| |
| p_scb->suspend_sup = true; |
| p_scb->recfg_sup = true; |
| p_scb->skip_sdp = false; |
| |
| cs.p_ctrl_cback = bta_av_dt_cback[p_scb->hdi]; |
| if (registr.chnl == BTA_AV_CHNL_AUDIO) { |
| /* set up the audio stream control block */ |
| p_scb->p_act_tbl = (const tBTA_AV_ACT*)bta_av_a2dp_action; |
| p_scb->p_cos = &bta_av_a2dp_cos; |
| p_scb->media_type = AVDT_MEDIA_TYPE_AUDIO; |
| cs.cfg.psc_mask = AVDT_PSC_TRANS; |
| cs.media_type = AVDT_MEDIA_TYPE_AUDIO; |
| cs.mtu = p_bta_av_cfg->audio_mtu; |
| cs.flush_to = L2CAP_DEFAULT_FLUSH_TO; |
| btav_a2dp_codec_index_t codec_index_min = |
| BTAV_A2DP_CODEC_INDEX_SOURCE_MIN; |
| btav_a2dp_codec_index_t codec_index_max = |
| BTAV_A2DP_CODEC_INDEX_SOURCE_MAX; |
| |
| #if (AVDT_REPORTING == TRUE) |
| if (bta_av_cb.features & BTA_AV_FEAT_REPORT) { |
| cs.cfg.psc_mask |= AVDT_PSC_REPORT; |
| cs.p_report_cback = bta_av_a2dp_report_cback; |
| } |
| #endif |
| if (bta_av_cb.features & BTA_AV_FEAT_DELAY_RPT) |
| cs.cfg.psc_mask |= AVDT_PSC_DELAY_RPT; |
| |
| if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) { |
| cs.tsep = AVDT_TSEP_SRC; |
| codec_index_min = BTAV_A2DP_CODEC_INDEX_SOURCE_MIN; |
| codec_index_max = BTAV_A2DP_CODEC_INDEX_SOURCE_MAX; |
| } else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) { |
| cs.tsep = AVDT_TSEP_SNK; |
| cs.p_sink_data_cback = bta_av_sink_data_cback; |
| codec_index_min = BTAV_A2DP_CODEC_INDEX_SINK_MIN; |
| codec_index_max = BTAV_A2DP_CODEC_INDEX_SINK_MAX; |
| } |
| |
| /* Initialize handles to zero */ |
| for (int xx = 0; xx < BTAV_A2DP_CODEC_INDEX_MAX; xx++) { |
| p_scb->seps[xx].av_handle = 0; |
| } |
| |
| /* keep the configuration in the stream control block */ |
| memcpy(&p_scb->cfg, &cs.cfg, sizeof(tAVDT_CFG)); |
| for (int i = codec_index_min; i < codec_index_max; i++) { |
| btav_a2dp_codec_index_t codec_index = |
| static_cast<btav_a2dp_codec_index_t>(i); |
| if (!(*bta_av_a2dp_cos.init)(codec_index, &cs.cfg)) { |
| continue; |
| } |
| if (AVDT_CreateStream(&p_scb->seps[codec_index].av_handle, &cs) != |
| AVDT_SUCCESS) { |
| continue; |
| } |
| /* Save a copy of the codec */ |
| memcpy(p_scb->seps[codec_index].codec_info, cs.cfg.codec_info, |
| AVDT_CODEC_SIZE); |
| p_scb->seps[codec_index].tsep = cs.tsep; |
| if (cs.tsep == AVDT_TSEP_SNK) { |
| p_scb->seps[codec_index].p_app_sink_data_cback = |
| p_data->api_reg.p_app_sink_data_cback; |
| } else { |
| /* In case of A2DP SOURCE we don't need a callback to |
| * handle media packets. |
| */ |
| p_scb->seps[codec_index].p_app_sink_data_cback = NULL; |
| } |
| } |
| |
| if (!bta_av_cb.reg_audio) { |
| bta_av_cb.sdp_a2dp_handle = 0; |
| bta_av_cb.sdp_a2dp_snk_handle = 0; |
| if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) { |
| /* create the SDP records on the 1st audio channel */ |
| bta_av_cb.sdp_a2dp_handle = SDP_CreateRecord(); |
| A2DP_AddRecord(UUID_SERVCLASS_AUDIO_SOURCE, p_service_name, NULL, |
| A2DP_SUPF_PLAYER, bta_av_cb.sdp_a2dp_handle); |
| bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SOURCE); |
| } else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) { |
| #if (BTA_AV_SINK_INCLUDED == TRUE) |
| bta_av_cb.sdp_a2dp_snk_handle = SDP_CreateRecord(); |
| A2DP_AddRecord(UUID_SERVCLASS_AUDIO_SINK, p_service_name, NULL, |
| A2DP_SUPF_PLAYER, bta_av_cb.sdp_a2dp_snk_handle); |
| bta_sys_add_uuid(UUID_SERVCLASS_AUDIO_SINK); |
| #endif |
| } |
| /* start listening when A2DP is registered */ |
| if (bta_av_cb.features & BTA_AV_FEAT_RCTG) |
| bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1); |
| |
| /* if the AV and AVK are both supported, it cannot support the CT role |
| */ |
| if (bta_av_cb.features & (BTA_AV_FEAT_RCCT)) { |
| /* if TG is not supported, we need to register to AVCT now */ |
| if ((bta_av_cb.features & (BTA_AV_FEAT_RCTG)) == 0) { |
| #if (BTA_AR_INCLUDED == TRUE) |
| #if (BTA_AV_WITH_AVCTP_AUTHORIZATION == TRUE) |
| bta_ar_reg_avct(p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu, |
| bta_av_cb.sec_mask, BTA_ID_AV); |
| #else |
| bta_ar_reg_avct( |
| p_bta_av_cfg->avrc_mtu, p_bta_av_cfg->avrc_br_mtu, |
| (uint8_t)(bta_av_cb.sec_mask & (~BTA_SEC_AUTHORIZE)), |
| BTA_ID_AV); |
| #endif |
| #endif |
| bta_av_rc_create(&bta_av_cb, AVCT_ACP, 0, BTA_AV_NUM_LINKS + 1); |
| } |
| #if (BTA_AR_INCLUDED == TRUE) |
| /* create an SDP record as AVRC CT. We create 1.3 for SOURCE |
| * because we rely on feature bits being scanned by external |
| * devices more than the profile version itself. |
| * |
| * We create 1.4 for SINK since we support browsing. |
| */ |
| if (profile_initialized == UUID_SERVCLASS_AUDIO_SOURCE) { |
| bta_ar_reg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL, NULL, |
| p_bta_av_cfg->avrc_ct_cat, BTA_ID_AV, |
| (bta_av_cb.features & BTA_AV_FEAT_BROWSE), |
| AVRC_REV_1_3); |
| } else if (profile_initialized == UUID_SERVCLASS_AUDIO_SINK) { |
| bta_ar_reg_avrc(UUID_SERVCLASS_AV_REMOTE_CONTROL, NULL, NULL, |
| p_bta_av_cfg->avrc_ct_cat, BTA_ID_AV, |
| (bta_av_cb.features & BTA_AV_FEAT_BROWSE), |
| AVRC_REV_1_6); |
| } |
| #endif |
| } |
| } |
| bta_av_cb.reg_audio |= BTA_AV_HNDL_TO_MSK(p_scb->hdi); |
| APPL_TRACE_DEBUG("reg_audio: 0x%x", bta_av_cb.reg_audio); |
| } else { |
| bta_av_cb.reg_video = BTA_AV_HNDL_TO_MSK(p_scb->hdi); |
| bta_av_cb.sdp_vdp_handle = SDP_CreateRecord(); |
| /* register the video channel */ |
| /* no need to verify the function pointer here. it's verified prior */ |
| (*p_bta_av_cfg->p_reg)(&cs, p_service_name, p_scb); |
| } |
| } while (0); |
| |
| /* call callback with register event */ |
| tBTA_AV bta_av_data; |
| bta_av_data.registr = registr; |
| (*bta_av_cb.p_cback)(BTA_AV_REGISTER_EVT, &bta_av_data); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_api_deregister |
| * |
| * Description de-register a channel |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_av_api_deregister(tBTA_AV_DATA* p_data) { |
| tBTA_AV_SCB* p_scb = bta_av_hndl_to_scb(p_data->hdr.layer_specific); |
| |
| if (p_scb) { |
| p_scb->deregistring = true; |
| bta_av_ssm_execute(p_scb, BTA_AV_API_CLOSE_EVT, p_data); |
| } else { |
| bta_av_dereg_comp(p_data); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_ci_data |
| * |
| * Description Forward the BTA_AV_CI_SRC_DATA_READY_EVT to stream state |
| * machine. |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_av_ci_data(tBTA_AV_DATA* p_data) { |
| tBTA_AV_SCB* p_scb; |
| int i; |
| uint8_t chnl = (uint8_t)p_data->hdr.layer_specific; |
| |
| for (i = 0; i < BTA_AV_NUM_STRS; i++) { |
| p_scb = bta_av_cb.p_scb[i]; |
| |
| if (p_scb && p_scb->chnl == chnl) { |
| bta_av_ssm_execute(p_scb, BTA_AV_SRC_DATA_READY_EVT, p_data); |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_rpc_conn |
| * |
| * Description report report channel open |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| #if (AVDT_REPORTING == TRUE) |
| static void bta_av_rpc_conn(UNUSED_ATTR tBTA_AV_DATA* p_data) {} |
| #endif |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_api_to_ssm |
| * |
| * Description forward the API request to stream state machine |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_av_api_to_ssm(tBTA_AV_DATA* p_data) { |
| int xx; |
| uint16_t event = |
| p_data->hdr.event - BTA_AV_FIRST_A2S_API_EVT + BTA_AV_FIRST_A2S_SSM_EVT; |
| |
| for (xx = 0; xx < BTA_AV_NUM_STRS; xx++) { |
| bta_av_ssm_execute(bta_av_cb.p_scb[xx], event, p_data); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_chk_start |
| * |
| * Description if this is audio channel, check if more than one audio |
| * channel is connected & already started. |
| * |
| * Returns true, if need api_start |
| * |
| ******************************************************************************/ |
| bool bta_av_chk_start(tBTA_AV_SCB* p_scb) { |
| bool start = false; |
| tBTA_AV_SCB* p_scbi; |
| int i; |
| |
| if (p_scb->chnl == BTA_AV_CHNL_AUDIO) { |
| if ((bta_av_cb.audio_open_cnt >= 2) && |
| ((0 == |
| (p_scb->role & BTA_AV_ROLE_AD_ACP)) || /* Outgoing connection or */ |
| (bta_av_cb.features & |
| BTA_AV_FEAT_ACP_START))) /* auto-starting option */ |
| { |
| /* more than one audio channel is connected */ |
| /* if this is the 2nd stream as ACP, give INT a chance to issue the START |
| * command */ |
| 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) { |
| start = true; |
| /* 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]); |
| } |
| } |
| } |
| } |
| } |
| return start; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_restore_switch |
| * |
| * Description assume that the caller of this function already makes |
| * sure that there's only one ACL connection left |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_av_restore_switch(void) { |
| tBTA_AV_CB* p_cb = &bta_av_cb; |
| int i; |
| uint8_t mask; |
| |
| APPL_TRACE_DEBUG("reg_audio: 0x%x", bta_av_cb.reg_audio); |
| for (i = 0; i < BTA_AV_NUM_STRS; i++) { |
| mask = BTA_AV_HNDL_TO_MSK(i); |
| if (p_cb->conn_audio == mask) { |
| if (p_cb->p_scb[i]) { |
| bta_sys_set_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, |
| p_cb->p_scb[i]->peer_addr); |
| } |
| break; |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_sys_rs_cback |
| * |
| * Description Receives the role change event from dm |
| * |
| * Returns (BTA_SYS_ROLE_CHANGE, new_role, hci_status, p_bda) |
| * |
| ******************************************************************************/ |
| static void bta_av_sys_rs_cback(UNUSED_ATTR tBTA_SYS_CONN_STATUS status, |
| uint8_t id, uint8_t app_id, |
| const RawAddress* peer_addr) { |
| int i; |
| tBTA_AV_SCB* p_scb = NULL; |
| uint8_t cur_role; |
| uint8_t peer_idx = 0; |
| |
| APPL_TRACE_DEBUG("bta_av_sys_rs_cback: %d", bta_av_cb.rs_idx); |
| for (i = 0; i < BTA_AV_NUM_STRS; i++) { |
| /* loop through all the SCBs to find matching peer addresses and report the |
| * role change event */ |
| /* note that more than one SCB (a2dp & vdp) maybe waiting for this event */ |
| p_scb = bta_av_cb.p_scb[i]; |
| if (p_scb && p_scb->peer_addr == *peer_addr) { |
| tBTA_AV_ROLE_RES* p_buf = |
| (tBTA_AV_ROLE_RES*)osi_malloc(sizeof(tBTA_AV_ROLE_RES)); |
| APPL_TRACE_DEBUG("new_role:%d, hci_status:x%x hndl: x%x", id, app_id, |
| p_scb->hndl); |
| /* |
| if ((id != BTM_ROLE_MASTER) && (app_id != HCI_SUCCESS)) |
| { |
| bta_sys_set_policy(BTA_ID_AV, |
| (HCI_ENABLE_MASTER_SLAVE_SWITCH|HCI_ENABLE_SNIFF_MODE), p_scb->peer_addr); |
| } |
| */ |
| p_buf->hdr.event = BTA_AV_ROLE_CHANGE_EVT; |
| p_buf->hdr.layer_specific = p_scb->hndl; |
| p_buf->new_role = id; |
| p_buf->hci_status = app_id; |
| bta_sys_sendmsg(p_buf); |
| |
| peer_idx = p_scb->hdi + 1; /* Handle index for the peer_addr */ |
| } |
| } |
| |
| /* restore role switch policy, if role switch failed */ |
| if ((HCI_SUCCESS != app_id) && |
| (BTM_GetRole(*peer_addr, &cur_role) == BTM_SUCCESS) && |
| (cur_role == BTM_ROLE_SLAVE)) { |
| bta_sys_set_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, *peer_addr); |
| } |
| |
| /* if BTA_AvOpen() was called for other device, which caused the role switch |
| * of the peer_addr, */ |
| /* we need to continue opening process for the BTA_AvOpen(). */ |
| if ((bta_av_cb.rs_idx != 0) && (bta_av_cb.rs_idx != peer_idx)) { |
| if ((bta_av_cb.rs_idx - 1) < BTA_AV_NUM_STRS) { |
| p_scb = bta_av_cb.p_scb[bta_av_cb.rs_idx - 1]; |
| } |
| if (p_scb && p_scb->q_tag == BTA_AV_Q_TAG_OPEN) { |
| APPL_TRACE_DEBUG("bta_av_sys_rs_cback: rs_idx(%d), hndl:x%x q_tag: %d", |
| bta_av_cb.rs_idx, p_scb->hndl, p_scb->q_tag); |
| |
| if (HCI_SUCCESS == app_id || HCI_ERR_NO_CONNECTION == app_id) |
| p_scb->q_info.open.switch_res = BTA_AV_RS_OK; |
| else |
| p_scb->q_info.open.switch_res = BTA_AV_RS_FAIL; |
| |
| /* Continue av open process */ |
| bta_av_do_disc_a2dp(p_scb, (tBTA_AV_DATA*)&(p_scb->q_info.open)); |
| } |
| |
| bta_av_cb.rs_idx = 0; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_sco_chg_cback |
| * |
| * Description receive & process the SCO connection up/down event from sys. |
| * call setup also triggers this callback, to suspend av before |
| * SCO activity happens, or to resume av once call ends. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_av_sco_chg_cback(tBTA_SYS_CONN_STATUS status, uint8_t id, |
| UNUSED_ATTR uint8_t app_id, |
| UNUSED_ATTR const RawAddress* peer_addr) { |
| tBTA_AV_SCB* p_scb; |
| int i; |
| tBTA_AV_API_STOP stop; |
| |
| APPL_TRACE_DEBUG("bta_av_sco_chg_cback:%d status:%d", id, status); |
| if (id) { |
| bta_av_cb.sco_occupied = true; |
| |
| /* either BTA_SYS_SCO_OPEN or BTA_SYS_SCO_CLOSE with remaining active SCO */ |
| for (i = 0; i < BTA_AV_NUM_STRS; i++) { |
| p_scb = bta_av_cb.p_scb[i]; |
| |
| if (p_scb && p_scb->co_started && (p_scb->sco_suspend == false)) { |
| APPL_TRACE_DEBUG("suspending scb:%d", i); |
| /* scb is used and started, not suspended automatically */ |
| p_scb->sco_suspend = true; |
| stop.flush = false; |
| stop.suspend = true; |
| stop.reconfig_stop = false; |
| bta_av_ssm_execute(p_scb, BTA_AV_AP_STOP_EVT, (tBTA_AV_DATA*)&stop); |
| } |
| } |
| } else { |
| bta_av_cb.sco_occupied = false; |
| |
| for (i = 0; i < BTA_AV_NUM_STRS; i++) { |
| p_scb = bta_av_cb.p_scb[i]; |
| |
| if (p_scb && p_scb->sco_suspend) /* scb is used and suspended for SCO */ |
| { |
| APPL_TRACE_DEBUG("starting scb:%d", i); |
| bta_av_ssm_execute(p_scb, BTA_AV_AP_START_EVT, NULL); |
| } |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_switch_if_needed |
| * |
| * Description This function checks if there is another existing AV |
| * channel that is local as slave role. |
| * If so, role switch and remove it from link policy. |
| * |
| * Returns true, if role switch is done |
| * |
| ******************************************************************************/ |
| bool bta_av_switch_if_needed(tBTA_AV_SCB* p_scb) { |
| uint8_t role; |
| bool needed = false; |
| tBTA_AV_SCB* p_scbi; |
| int i; |
| uint8_t mask; |
| |
| for (i = 0; i < BTA_AV_NUM_STRS; i++) { |
| mask = BTA_AV_HNDL_TO_MSK(i); |
| p_scbi = bta_av_cb.p_scb[i]; |
| if (p_scbi && (p_scb->hdi != i) && /* not the original channel */ |
| ((bta_av_cb.conn_audio & mask) || /* connected audio */ |
| (bta_av_cb.conn_video & mask))) /* connected video */ |
| { |
| BTM_GetRole(p_scbi->peer_addr, &role); |
| /* this channel is open - clear the role switch link policy for this link |
| */ |
| if (BTM_ROLE_MASTER != role) { |
| if (bta_av_cb.features & BTA_AV_FEAT_MASTER) |
| bta_sys_clear_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, |
| p_scbi->peer_addr); |
| if (BTM_CMD_STARTED != |
| BTM_SwitchRole(p_scbi->peer_addr, BTM_ROLE_MASTER, NULL)) { |
| /* can not switch role on SCBI |
| * start the timer on SCB - because this function is ONLY called when |
| * SCB gets API_OPEN */ |
| bta_sys_start_timer(p_scb->avrc_ct_timer, BTA_AV_RS_TIME_VAL, |
| BTA_AV_AVRC_TIMER_EVT, p_scb->hndl); |
| } |
| needed = true; |
| /* mark the original channel as waiting for RS result */ |
| bta_av_cb.rs_idx = p_scb->hdi + 1; |
| break; |
| } |
| } |
| } |
| return needed; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_link_role_ok |
| * |
| * Description This function checks if the SCB has existing ACL connection |
| * If so, check if the link role fits the requirements. |
| * |
| * Returns true, if role is ok |
| * |
| ******************************************************************************/ |
| bool bta_av_link_role_ok(tBTA_AV_SCB* p_scb, uint8_t bits) { |
| uint8_t role; |
| bool is_ok = true; |
| |
| if (BTM_GetRole(p_scb->peer_addr, &role) == BTM_SUCCESS) { |
| LOG_INFO(LOG_TAG, "%s hndl:x%x role:%d conn_audio:x%x bits:%d features:x%x", |
| __func__, p_scb->hndl, role, bta_av_cb.conn_audio, bits, |
| bta_av_cb.features); |
| if (BTM_ROLE_MASTER != role && |
| (A2DP_BitsSet(bta_av_cb.conn_audio) > bits || |
| (bta_av_cb.features & BTA_AV_FEAT_MASTER))) { |
| if (bta_av_cb.features & BTA_AV_FEAT_MASTER) |
| bta_sys_clear_policy(BTA_ID_AV, HCI_ENABLE_MASTER_SLAVE_SWITCH, |
| p_scb->peer_addr); |
| |
| if (BTM_CMD_STARTED != |
| BTM_SwitchRole(p_scb->peer_addr, BTM_ROLE_MASTER, NULL)) { |
| /* can not switch role on SCB - start the timer on SCB */ |
| } |
| is_ok = false; |
| p_scb->wait |= BTA_AV_WAIT_ROLE_SW_RES_START; |
| } |
| } |
| |
| return is_ok; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_chk_mtu |
| * |
| * Description if this is audio channel, check if more than one audio |
| * channel is connected. |
| * |
| * Returns The smallest mtu of the connected audio channels |
| * |
| ******************************************************************************/ |
| uint16_t bta_av_chk_mtu(tBTA_AV_SCB* p_scb, UNUSED_ATTR uint16_t mtu) { |
| uint16_t ret_mtu = BTA_AV_MAX_A2DP_MTU; |
| tBTA_AV_SCB* p_scbi; |
| int i; |
| uint8_t mask; |
| |
| /* TODO_MV mess with the mtu according to the number of EDR/non-EDR headsets |
| */ |
| if (p_scb->chnl == BTA_AV_CHNL_AUDIO) { |
| if (bta_av_cb.audio_open_cnt >= 2) { |
| /* more than one audio channel is connected */ |
| for (i = 0; i < BTA_AV_NUM_STRS; i++) { |
| p_scbi = bta_av_cb.p_scb[i]; |
| if ((p_scb != p_scbi) && p_scbi && |
| (p_scbi->chnl == BTA_AV_CHNL_AUDIO)) { |
| mask = BTA_AV_HNDL_TO_MSK(i); |
| APPL_TRACE_DEBUG("[%d] mtu: %d, mask:0x%x", i, p_scbi->stream_mtu, |
| mask); |
| if (bta_av_cb.conn_audio & mask) { |
| if (ret_mtu > p_scbi->stream_mtu) ret_mtu = p_scbi->stream_mtu; |
| } |
| } |
| } |
| } |
| APPL_TRACE_DEBUG("bta_av_chk_mtu audio count:%d, conn_audio:0x%x, ret:%d", |
| bta_av_cb.audio_open_cnt, bta_av_cb.conn_audio, ret_mtu); |
| } |
| return ret_mtu; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_dup_audio_buf |
| * |
| * Description dup the audio data to the q_info.a2dp of other audio |
| * channels |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_av_dup_audio_buf(tBTA_AV_SCB* p_scb, BT_HDR* p_buf) { |
| /* Test whether there is more than one audio channel connected */ |
| if ((p_buf == NULL) || (bta_av_cb.audio_open_cnt < 2)) return; |
| |
| uint16_t copy_size = BT_HDR_SIZE + p_buf->len + p_buf->offset; |
| for (int i = 0; i < BTA_AV_NUM_STRS; i++) { |
| tBTA_AV_SCB* p_scbi = bta_av_cb.p_scb[i]; |
| |
| if (i == p_scb->hdi) continue; /* Ignore the original channel */ |
| if ((p_scbi == NULL) || !p_scbi->co_started) |
| continue; /* Ignore if SCB is not used or started */ |
| if (!(bta_av_cb.conn_audio & BTA_AV_HNDL_TO_MSK(i))) |
| continue; /* Audio is not connected */ |
| |
| /* Enqueue the data */ |
| BT_HDR* p_new = (BT_HDR*)osi_malloc(copy_size); |
| memcpy(p_new, p_buf, copy_size); |
| list_append(p_scbi->a2dp_list, p_new); |
| |
| if (list_length(p_scbi->a2dp_list) > p_bta_av_cfg->audio_mqs) { |
| // Drop the oldest packet |
| bta_av_co_audio_drop(p_scbi->hndl); |
| BT_HDR* p_buf_drop = static_cast<BT_HDR*>(list_front(p_scbi->a2dp_list)); |
| list_remove(p_scbi->a2dp_list, p_buf_drop); |
| osi_free(p_buf_drop); |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_sm_execute |
| * |
| * Description State machine event handling function for AV |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_av_sm_execute(tBTA_AV_CB* p_cb, uint16_t event, tBTA_AV_DATA* p_data) { |
| tBTA_AV_ST_TBL state_table; |
| uint8_t action; |
| |
| APPL_TRACE_EVENT("%s: AV event=0x%x(%s) state=%d(%s)", __func__, event, |
| bta_av_evt_code(event), p_cb->state, |
| bta_av_st_code(p_cb->state)); |
| |
| /* look up the state table for the current state */ |
| state_table = bta_av_st_tbl[p_cb->state]; |
| |
| event &= 0x00FF; |
| |
| /* set next state */ |
| p_cb->state = state_table[event][BTA_AV_NEXT_STATE]; |
| APPL_TRACE_EVENT("next state=%d event offset:%d", p_cb->state, event); |
| |
| /* execute action functions */ |
| action = state_table[event][BTA_AV_ACTION_COL]; |
| if (action != BTA_AV_IGNORE) { |
| APPL_TRACE_EVENT("%s action executed %d", __func__, action); |
| (*bta_av_action[action])(p_cb, p_data); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_av_hdl_event |
| * |
| * Description Advanced audio/video main event handling function. |
| * |
| * |
| * Returns bool |
| * |
| ******************************************************************************/ |
| bool bta_av_hdl_event(BT_HDR* p_msg) { |
| if (p_msg->event > BTA_AV_LAST_EVT) { |
| return true; /* to free p_msg */ |
| } |
| if (p_msg->event >= BTA_AV_FIRST_NSM_EVT) { |
| APPL_TRACE_VERBOSE("%s: AV nsm event=0x%x(%s)", __func__, p_msg->event, |
| bta_av_evt_code(p_msg->event)); |
| /* non state machine events */ |
| (*bta_av_nsm_act[p_msg->event - BTA_AV_FIRST_NSM_EVT])( |
| (tBTA_AV_DATA*)p_msg); |
| } else if (p_msg->event >= BTA_AV_FIRST_SM_EVT && |
| p_msg->event <= BTA_AV_LAST_SM_EVT) { |
| APPL_TRACE_VERBOSE("%s: AV sm event=0x%x(%s)", __func__, p_msg->event, |
| bta_av_evt_code(p_msg->event)); |
| /* state machine events */ |
| bta_av_sm_execute(&bta_av_cb, p_msg->event, (tBTA_AV_DATA*)p_msg); |
| } else { |
| APPL_TRACE_VERBOSE("handle=0x%x", p_msg->layer_specific); |
| /* stream state machine events */ |
| bta_av_ssm_execute(bta_av_hndl_to_scb(p_msg->layer_specific), p_msg->event, |
| (tBTA_AV_DATA*)p_msg); |
| } |
| return true; |
| } |
| |
| /***************************************************************************** |
| * Debug Functions |
| ****************************************************************************/ |
| /******************************************************************************* |
| * |
| * Function bta_av_st_code |
| * |
| * Description |
| * |
| * Returns char * |
| * |
| ******************************************************************************/ |
| static const char* bta_av_st_code(uint8_t state) { |
| switch (state) { |
| case BTA_AV_INIT_ST: |
| return "INIT"; |
| case BTA_AV_OPEN_ST: |
| return "OPEN"; |
| default: |
| return "unknown"; |
| } |
| } |
| /******************************************************************************* |
| * |
| * Function bta_av_evt_code |
| * |
| * Description |
| * |
| * Returns char * |
| * |
| ******************************************************************************/ |
| const char* bta_av_evt_code(uint16_t evt_code) { |
| switch (evt_code) { |
| case BTA_AV_API_DISABLE_EVT: |
| return "API_DISABLE"; |
| case BTA_AV_API_REMOTE_CMD_EVT: |
| return "API_REMOTE_CMD"; |
| case BTA_AV_API_VENDOR_CMD_EVT: |
| return "API_VENDOR_CMD"; |
| case BTA_AV_API_VENDOR_RSP_EVT: |
| return "API_VENDOR_RSP"; |
| case BTA_AV_API_META_RSP_EVT: |
| return "API_META_RSP_EVT"; |
| case BTA_AV_API_RC_CLOSE_EVT: |
| return "API_RC_CLOSE"; |
| case BTA_AV_AVRC_OPEN_EVT: |
| return "AVRC_OPEN"; |
| case BTA_AV_AVRC_MSG_EVT: |
| return "AVRC_MSG"; |
| case BTA_AV_AVRC_NONE_EVT: |
| return "AVRC_NONE"; |
| |
| case BTA_AV_API_OPEN_EVT: |
| return "API_OPEN"; |
| case BTA_AV_API_CLOSE_EVT: |
| return "API_CLOSE"; |
| case BTA_AV_AP_START_EVT: |
| return "AP_START"; |
| case BTA_AV_AP_STOP_EVT: |
| return "AP_STOP"; |
| case BTA_AV_API_RECONFIG_EVT: |
| return "API_RECONFIG"; |
| case BTA_AV_API_PROTECT_REQ_EVT: |
| return "API_PROTECT_REQ"; |
| case BTA_AV_API_PROTECT_RSP_EVT: |
| return "API_PROTECT_RSP"; |
| case BTA_AV_API_RC_OPEN_EVT: |
| return "API_RC_OPEN"; |
| case BTA_AV_SRC_DATA_READY_EVT: |
| return "SRC_DATA_READY"; |
| case BTA_AV_CI_SETCONFIG_OK_EVT: |
| return "CI_SETCONFIG_OK"; |
| case BTA_AV_CI_SETCONFIG_FAIL_EVT: |
| return "CI_SETCONFIG_FAIL"; |
| case BTA_AV_SDP_DISC_OK_EVT: |
| return "SDP_DISC_OK"; |
| case BTA_AV_SDP_DISC_FAIL_EVT: |
| return "SDP_DISC_FAIL"; |
| case BTA_AV_STR_DISC_OK_EVT: |
| return "STR_DISC_OK"; |
| case BTA_AV_STR_DISC_FAIL_EVT: |
| return "STR_DISC_FAIL"; |
| case BTA_AV_STR_GETCAP_OK_EVT: |
| return "STR_GETCAP_OK"; |
| case BTA_AV_STR_GETCAP_FAIL_EVT: |
| return "STR_GETCAP_FAIL"; |
| case BTA_AV_STR_OPEN_OK_EVT: |
| return "STR_OPEN_OK"; |
| case BTA_AV_STR_OPEN_FAIL_EVT: |
| return "STR_OPEN_FAIL"; |
| case BTA_AV_STR_START_OK_EVT: |
| return "STR_START_OK"; |
| case BTA_AV_STR_START_FAIL_EVT: |
| return "STR_START_FAIL"; |
| case BTA_AV_STR_CLOSE_EVT: |
| return "STR_CLOSE"; |
| case BTA_AV_STR_CONFIG_IND_EVT: |
| return "STR_CONFIG_IND"; |
| case BTA_AV_STR_SECURITY_IND_EVT: |
| return "STR_SECURITY_IND"; |
| case BTA_AV_STR_SECURITY_CFM_EVT: |
| return "STR_SECURITY_CFM"; |
| case BTA_AV_STR_WRITE_CFM_EVT: |
| return "STR_WRITE_CFM"; |
| case BTA_AV_STR_SUSPEND_CFM_EVT: |
| return "STR_SUSPEND_CFM"; |
| case BTA_AV_STR_RECONFIG_CFM_EVT: |
| return "STR_RECONFIG_CFM"; |
| case BTA_AV_AVRC_TIMER_EVT: |
| return "AVRC_TIMER"; |
| case BTA_AV_AVDT_CONNECT_EVT: |
| return "AVDT_CONNECT"; |
| case BTA_AV_AVDT_DISCONNECT_EVT: |
| return "AVDT_DISCONNECT"; |
| case BTA_AV_ROLE_CHANGE_EVT: |
| return "ROLE_CHANGE"; |
| case BTA_AV_AVDT_DELAY_RPT_EVT: |
| return "AVDT_DELAY_RPT"; |
| case BTA_AV_ACP_CONNECT_EVT: |
| return "ACP_CONNECT"; |
| |
| case BTA_AV_API_ENABLE_EVT: |
| return "API_ENABLE"; |
| case BTA_AV_API_REGISTER_EVT: |
| return "API_REG"; |
| case BTA_AV_API_DEREGISTER_EVT: |
| return "API_DEREG"; |
| case BTA_AV_API_DISCONNECT_EVT: |
| return "API_DISCNT"; |
| case BTA_AV_CI_SRC_DATA_READY_EVT: |
| return "CI_DATA_READY"; |
| case BTA_AV_SIG_CHG_EVT: |
| return "SIG_CHG"; |
| case BTA_AV_SIGNALLING_TIMER_EVT: |
| return "SIGNALLING_TIMER"; |
| case BTA_AV_SDP_AVRC_DISC_EVT: |
| return "SDP_AVRC_DISC"; |
| case BTA_AV_AVRC_CLOSE_EVT: |
| return "AVRC_CLOSE"; |
| case BTA_AV_AVRC_BROWSE_OPEN_EVT: |
| return "AVRC_BROWSE_OPEN"; |
| case BTA_AV_AVRC_BROWSE_CLOSE_EVT: |
| return "AVRC_BROWSE_CLOSE"; |
| case BTA_AV_CONN_CHG_EVT: |
| return "CONN_CHG"; |
| case BTA_AV_DEREG_COMP_EVT: |
| return "DEREG_COMP"; |
| #if (AVDT_REPORTING == TRUE) |
| case BTA_AV_AVDT_RPT_CONN_EVT: |
| return "RPT_CONN"; |
| #endif |
| case BTA_AV_API_START_EVT: |
| return "API_START"; |
| case BTA_AV_API_STOP_EVT: |
| return "API_STOP"; |
| default: |
| return "unknown"; |
| } |
| } |
