| /****************************************************************************** |
| * |
| * Copyright (C) 2011-2012 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 implementation of the API for the advanced audio/video (AV) |
| * subsystem of BTA, Broadcom's Bluetooth application layer for mobile |
| * phones. |
| * |
| ******************************************************************************/ |
| |
| #include <assert.h> |
| |
| #include "bt_target.h" |
| |
| #include <string.h> |
| #include "bt_common.h" |
| #include "bta_api.h" |
| #include "bta_av_api.h" |
| #include "bta_av_int.h" |
| #include "bta_sys.h" |
| |
| #include "osi/include/allocator.h" |
| |
| /***************************************************************************** |
| * Constants |
| ****************************************************************************/ |
| |
| static const tBTA_SYS_REG bta_av_reg = {bta_av_hdl_event, BTA_AvDisable}; |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvEnable |
| * |
| * Description Enable the advanced audio/video service. When the enable |
| * operation is complete the callback function will be |
| * called with a BTA_AV_ENABLE_EVT. This function must |
| * be called before other function in the AV API are |
| * called. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvEnable(tBTA_SEC sec_mask, tBTA_AV_FEAT features, |
| tBTA_AV_CBACK* p_cback) { |
| tBTA_AV_API_ENABLE* p_buf = |
| (tBTA_AV_API_ENABLE*)osi_malloc(sizeof(tBTA_AV_API_ENABLE)); |
| |
| /* register with BTA system manager */ |
| bta_sys_register(BTA_ID_AV, &bta_av_reg); |
| |
| p_buf->hdr.event = BTA_AV_API_ENABLE_EVT; |
| p_buf->p_cback = p_cback; |
| p_buf->features = features; |
| p_buf->sec_mask = sec_mask; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvDisable |
| * |
| * Description Disable the advanced audio/video service. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvDisable(void) { |
| BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); |
| |
| bta_sys_deregister(BTA_ID_AV); |
| p_buf->event = BTA_AV_API_DISABLE_EVT; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvRegister |
| * |
| * Description Register the audio or video service to stack. When the |
| * operation is complete the callback function will be |
| * called with a BTA_AV_REGISTER_EVT. This function must |
| * be called before AVDT stream is open. |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvRegister(tBTA_AV_CHNL chnl, const char* p_service_name, |
| uint8_t app_id, tBTA_AV_SINK_DATA_CBACK* p_sink_data_cback, |
| uint16_t service_uuid) { |
| tBTA_AV_API_REG* p_buf = |
| (tBTA_AV_API_REG*)osi_malloc(sizeof(tBTA_AV_API_REG)); |
| |
| p_buf->hdr.layer_specific = chnl; |
| p_buf->hdr.event = BTA_AV_API_REGISTER_EVT; |
| if (p_service_name) |
| strlcpy(p_buf->p_service_name, p_service_name, BTA_SERVICE_NAME_LEN); |
| else |
| p_buf->p_service_name[0] = 0; |
| p_buf->app_id = app_id; |
| p_buf->p_app_sink_data_cback = p_sink_data_cback; |
| p_buf->service_uuid = service_uuid; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvDeregister |
| * |
| * Description Deregister the audio or video service |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvDeregister(tBTA_AV_HNDL hndl) { |
| BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); |
| |
| p_buf->layer_specific = hndl; |
| p_buf->event = BTA_AV_API_DEREGISTER_EVT; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvOpen |
| * |
| * Description Opens an advanced audio/video connection to a peer device. |
| * When connection is open callback function is called |
| * with a BTA_AV_OPEN_EVT. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvOpen(BD_ADDR bd_addr, tBTA_AV_HNDL handle, bool use_rc, |
| tBTA_SEC sec_mask, uint16_t uuid) { |
| tBTA_AV_API_OPEN* p_buf = |
| (tBTA_AV_API_OPEN*)osi_malloc(sizeof(tBTA_AV_API_OPEN)); |
| |
| p_buf->hdr.event = BTA_AV_API_OPEN_EVT; |
| p_buf->hdr.layer_specific = handle; |
| bdcpy(p_buf->bd_addr, bd_addr); |
| p_buf->use_rc = use_rc; |
| p_buf->sec_mask = sec_mask; |
| p_buf->switch_res = BTA_AV_RS_NONE; |
| p_buf->uuid = uuid; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvClose |
| * |
| * Description Close the current streams. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvClose(tBTA_AV_HNDL handle) { |
| BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); |
| |
| p_buf->event = BTA_AV_API_CLOSE_EVT; |
| p_buf->layer_specific = handle; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvDisconnect |
| * |
| * Description Close the connection to the address. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvDisconnect(BD_ADDR bd_addr) { |
| tBTA_AV_API_DISCNT* p_buf = |
| (tBTA_AV_API_DISCNT*)osi_malloc(sizeof(tBTA_AV_API_DISCNT)); |
| |
| p_buf->hdr.event = BTA_AV_API_DISCONNECT_EVT; |
| bdcpy(p_buf->bd_addr, bd_addr); |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvStart |
| * |
| * Description Start audio/video stream data transfer. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvStart(void) { |
| BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); |
| |
| p_buf->event = BTA_AV_API_START_EVT; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvOffloadStart |
| * |
| * Description Start a2dp audio offloading. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvOffloadStart(tBTA_AV_HNDL hndl) { |
| BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); |
| |
| p_buf->event = BTA_AV_API_OFFLOAD_START_EVT; |
| p_buf->layer_specific = hndl; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvOffloadStartRsp |
| * |
| * Description Response from vendor lib for A2DP Offload Start request. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvOffloadStartRsp(tBTA_AV_HNDL hndl, tBTA_AV_STATUS status) { |
| tBTA_AV_API_STATUS_RSP* p_buf = |
| (tBTA_AV_API_STATUS_RSP*)osi_malloc(sizeof(tBTA_AV_API_STATUS_RSP)); |
| |
| p_buf->hdr.event = BTA_AV_API_OFFLOAD_START_RSP_EVT; |
| p_buf->hdr.layer_specific = hndl; |
| p_buf->status = status; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvStop |
| * |
| * Description Stop audio/video stream data transfer. |
| * If suspend is true, this function sends AVDT suspend signal |
| * to the connected peer(s). |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvStop(bool suspend) { |
| tBTA_AV_API_STOP* p_buf = |
| (tBTA_AV_API_STOP*)osi_malloc(sizeof(tBTA_AV_API_STOP)); |
| |
| p_buf->hdr.event = BTA_AV_API_STOP_EVT; |
| p_buf->flush = true; |
| p_buf->suspend = suspend; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvReconfig |
| * |
| * Description Reconfigure the audio/video stream. |
| * If suspend is true, this function tries the |
| *suspend/reconfigure |
| * procedure first. |
| * If suspend is false or when suspend/reconfigure fails, |
| * this function closes and re-opens the AVDT connection. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvReconfig(tBTA_AV_HNDL hndl, bool suspend, uint8_t sep_info_idx, |
| uint8_t* p_codec_info, uint8_t num_protect, |
| const uint8_t* p_protect_info) { |
| tBTA_AV_API_RCFG* p_buf = |
| (tBTA_AV_API_RCFG*)osi_malloc(sizeof(tBTA_AV_API_RCFG) + num_protect); |
| |
| p_buf->hdr.layer_specific = hndl; |
| p_buf->hdr.event = BTA_AV_API_RECONFIG_EVT; |
| p_buf->num_protect = num_protect; |
| p_buf->suspend = suspend; |
| p_buf->sep_info_idx = sep_info_idx; |
| p_buf->p_protect_info = (uint8_t*)(p_buf + 1); |
| memcpy(p_buf->codec_info, p_codec_info, AVDT_CODEC_SIZE); |
| memcpy(p_buf->p_protect_info, p_protect_info, num_protect); |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvProtectReq |
| * |
| * Description Send a content protection request. This function can only |
| * be used if AV is enabled with feature BTA_AV_FEAT_PROTECT. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvProtectReq(tBTA_AV_HNDL hndl, uint8_t* p_data, uint16_t len) { |
| tBTA_AV_API_PROTECT_REQ* p_buf = (tBTA_AV_API_PROTECT_REQ*)osi_malloc( |
| sizeof(tBTA_AV_API_PROTECT_REQ) + len); |
| |
| p_buf->hdr.layer_specific = hndl; |
| p_buf->hdr.event = BTA_AV_API_PROTECT_REQ_EVT; |
| p_buf->len = len; |
| if (p_data == NULL) { |
| p_buf->p_data = NULL; |
| } else { |
| p_buf->p_data = (uint8_t*)(p_buf + 1); |
| memcpy(p_buf->p_data, p_data, len); |
| } |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvProtectRsp |
| * |
| * Description Send a content protection response. This function must |
| * be called if a BTA_AV_PROTECT_REQ_EVT is received. |
| * This function can only be used if AV is enabled with |
| * feature BTA_AV_FEAT_PROTECT. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvProtectRsp(tBTA_AV_HNDL hndl, uint8_t error_code, uint8_t* p_data, |
| uint16_t len) { |
| tBTA_AV_API_PROTECT_RSP* p_buf = (tBTA_AV_API_PROTECT_RSP*)osi_malloc( |
| sizeof(tBTA_AV_API_PROTECT_RSP) + len); |
| |
| p_buf->hdr.layer_specific = hndl; |
| p_buf->hdr.event = BTA_AV_API_PROTECT_RSP_EVT; |
| p_buf->len = len; |
| p_buf->error_code = error_code; |
| if (p_data == NULL) { |
| p_buf->p_data = NULL; |
| } else { |
| p_buf->p_data = (uint8_t*)(p_buf + 1); |
| memcpy(p_buf->p_data, p_data, len); |
| } |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvRemoteCmd |
| * |
| * Description Send a remote control command. This function can only |
| * be used if AV is enabled with feature BTA_AV_FEAT_RCCT. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvRemoteCmd(uint8_t rc_handle, uint8_t label, tBTA_AV_RC rc_id, |
| tBTA_AV_STATE key_state) { |
| tBTA_AV_API_REMOTE_CMD* p_buf = |
| (tBTA_AV_API_REMOTE_CMD*)osi_malloc(sizeof(tBTA_AV_API_REMOTE_CMD)); |
| |
| p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT; |
| p_buf->hdr.layer_specific = rc_handle; |
| p_buf->msg.op_id = rc_id; |
| p_buf->msg.state = key_state; |
| p_buf->msg.p_pass_data = NULL; |
| p_buf->msg.pass_len = 0; |
| p_buf->label = label; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvRemoteVendorUniqueCmd |
| * |
| * Description Send a remote control command with Vendor Unique rc_id. |
| * This function can only be used if AV is enabled with |
| * feature BTA_AV_FEAT_RCCT. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvRemoteVendorUniqueCmd(uint8_t rc_handle, uint8_t label, |
| tBTA_AV_STATE key_state, uint8_t* p_msg, |
| uint8_t buf_len) { |
| tBTA_AV_API_REMOTE_CMD* p_buf = (tBTA_AV_API_REMOTE_CMD*)osi_malloc( |
| sizeof(tBTA_AV_API_REMOTE_CMD) + buf_len); |
| |
| p_buf->label = label; |
| p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT; |
| p_buf->hdr.layer_specific = rc_handle; |
| p_buf->msg.op_id = AVRC_ID_VENDOR; |
| p_buf->msg.state = key_state; |
| p_buf->msg.pass_len = buf_len; |
| if (p_msg == NULL) { |
| p_buf->msg.p_pass_data = NULL; |
| } else { |
| p_buf->msg.p_pass_data = (uint8_t*)(p_buf + 1); |
| memcpy(p_buf->msg.p_pass_data, p_msg, buf_len); |
| } |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvVendorCmd |
| * |
| * Description Send a vendor dependent remote control command. This |
| * function can only be used if AV is enabled with feature |
| * BTA_AV_FEAT_VENDOR. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvVendorCmd(uint8_t rc_handle, uint8_t label, tBTA_AV_CODE cmd_code, |
| uint8_t* p_data, uint16_t len) { |
| tBTA_AV_API_VENDOR* p_buf = |
| (tBTA_AV_API_VENDOR*)osi_malloc(sizeof(tBTA_AV_API_VENDOR) + len); |
| |
| p_buf->hdr.event = BTA_AV_API_VENDOR_CMD_EVT; |
| p_buf->hdr.layer_specific = rc_handle; |
| p_buf->msg.hdr.ctype = cmd_code; |
| p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL; |
| p_buf->msg.hdr.subunit_id = 0; |
| p_buf->msg.company_id = p_bta_av_cfg->company_id; |
| p_buf->label = label; |
| p_buf->msg.vendor_len = len; |
| if (p_data == NULL) { |
| p_buf->msg.p_vendor_data = NULL; |
| } else { |
| p_buf->msg.p_vendor_data = (uint8_t*)(p_buf + 1); |
| memcpy(p_buf->msg.p_vendor_data, p_data, len); |
| } |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvVendorRsp |
| * |
| * Description Send a vendor dependent remote control response. |
| * This function must be called if a BTA_AV_VENDOR_CMD_EVT |
| * is received. This function can only be used if AV is |
| * enabled with feature BTA_AV_FEAT_VENDOR. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvVendorRsp(uint8_t rc_handle, uint8_t label, tBTA_AV_CODE rsp_code, |
| uint8_t* p_data, uint16_t len, uint32_t company_id) { |
| tBTA_AV_API_VENDOR* p_buf = |
| (tBTA_AV_API_VENDOR*)osi_malloc(sizeof(tBTA_AV_API_VENDOR) + len); |
| |
| p_buf->hdr.event = BTA_AV_API_VENDOR_RSP_EVT; |
| p_buf->hdr.layer_specific = rc_handle; |
| p_buf->msg.hdr.ctype = rsp_code; |
| p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL; |
| p_buf->msg.hdr.subunit_id = 0; |
| if (company_id) |
| p_buf->msg.company_id = company_id; |
| else |
| p_buf->msg.company_id = p_bta_av_cfg->company_id; |
| p_buf->label = label; |
| p_buf->msg.vendor_len = len; |
| if (p_data == NULL) { |
| p_buf->msg.p_vendor_data = NULL; |
| } else { |
| p_buf->msg.p_vendor_data = (uint8_t*)(p_buf + 1); |
| memcpy(p_buf->msg.p_vendor_data, p_data, len); |
| } |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvOpenRc |
| * |
| * Description Open an AVRCP connection toward the device with the |
| * specified handle |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvOpenRc(tBTA_AV_HNDL handle) { |
| tBTA_AV_API_OPEN_RC* p_buf = |
| (tBTA_AV_API_OPEN_RC*)osi_malloc(sizeof(tBTA_AV_API_OPEN_RC)); |
| |
| p_buf->hdr.event = BTA_AV_API_RC_OPEN_EVT; |
| p_buf->hdr.layer_specific = handle; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvCloseRc |
| * |
| * Description Close an AVRCP connection |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvCloseRc(uint8_t rc_handle) { |
| tBTA_AV_API_CLOSE_RC* p_buf = |
| (tBTA_AV_API_CLOSE_RC*)osi_malloc(sizeof(tBTA_AV_API_CLOSE_RC)); |
| |
| p_buf->hdr.event = BTA_AV_API_RC_CLOSE_EVT; |
| p_buf->hdr.layer_specific = rc_handle; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvMetaRsp |
| * |
| * Description Send a Metadata/Advanced Control response. The message |
| *contained |
| * in p_pkt can be composed with AVRC utility functions. |
| * This function can only be used if AV is enabled with feature |
| * BTA_AV_FEAT_METADATA. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvMetaRsp(uint8_t rc_handle, uint8_t label, tBTA_AV_CODE rsp_code, |
| BT_HDR* p_pkt) { |
| tBTA_AV_API_META_RSP* p_buf = |
| (tBTA_AV_API_META_RSP*)osi_malloc(sizeof(tBTA_AV_API_META_RSP)); |
| |
| p_buf->hdr.event = BTA_AV_API_META_RSP_EVT; |
| p_buf->hdr.layer_specific = rc_handle; |
| p_buf->rsp_code = rsp_code; |
| p_buf->p_pkt = p_pkt; |
| p_buf->is_rsp = true; |
| p_buf->label = label; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTA_AvMetaCmd |
| * |
| * Description Send a Metadata/Advanced Control command. The message |
| *contained |
| * in p_pkt can be composed with AVRC utility functions. |
| * This function can only be used if AV is enabled with feature |
| * BTA_AV_FEAT_METADATA. |
| * This message is sent only when the peer supports the TG |
| *role. |
| *8 The only command makes sense right now is the absolute |
| *volume command. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTA_AvMetaCmd(uint8_t rc_handle, uint8_t label, tBTA_AV_CMD cmd_code, |
| BT_HDR* p_pkt) { |
| tBTA_AV_API_META_RSP* p_buf = |
| (tBTA_AV_API_META_RSP*)osi_malloc(sizeof(tBTA_AV_API_META_RSP)); |
| |
| p_buf->hdr.event = BTA_AV_API_META_RSP_EVT; |
| p_buf->hdr.layer_specific = rc_handle; |
| p_buf->p_pkt = p_pkt; |
| p_buf->rsp_code = cmd_code; |
| p_buf->is_rsp = false; |
| p_buf->label = label; |
| |
| bta_sys_sendmsg(p_buf); |
| } |