bta/av/bta_av_api.c - platform/external/bluetooth/bluedroid - Git at Google

 /******************************************************************************
  *
  *  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 "bt_target.h"
 #if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)

 #include "bta_api.h"
 #include "bd.h"
 #include "bta_sys.h"
 #include "bta_av_api.h"
 #include "bta_av_int.h"
 #include "gki.h"
 #include <string.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;

     /* register with BTA system manager */
     GKI_sched_lock();
     bta_sys_register(BTA_ID_AV, &bta_av_reg);
     GKI_sched_unlock();

     if ((p_buf = (tBTA_AV_API_ENABLE *) GKI_getbuf(sizeof(tBTA_AV_API_ENABLE))) != NULL)
     {
         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;

     bta_sys_deregister(BTA_ID_AV);
     if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
     {
         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 app_id)
 {
     tBTA_AV_API_REG  *p_buf;


     if ((p_buf = (tBTA_AV_API_REG *) GKI_getbuf(sizeof(tBTA_AV_API_REG))) != NULL)
     {
         p_buf->hdr.layer_specific   = chnl;
         p_buf->hdr.event = BTA_AV_API_REGISTER_EVT;
         if(p_service_name)
         {
             BCM_STRNCPY_S(p_buf->p_service_name, sizeof(p_buf->p_service_name), p_service_name, BTA_SERVICE_NAME_LEN);
             p_buf->p_service_name[BTA_SERVICE_NAME_LEN-1] = 0;
         }
         else
         {
             p_buf->p_service_name[0] = 0;
         }
         p_buf->app_id = app_id;
         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;

     if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
     {
         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, BOOLEAN use_rc, tBTA_SEC sec_mask)
 {
     tBTA_AV_API_OPEN  *p_buf;

     if ((p_buf = (tBTA_AV_API_OPEN *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN))) != NULL)
     {
         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;
         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;

     if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
     {
         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;

     if ((p_buf = (tBTA_AV_API_DISCNT *) GKI_getbuf(sizeof(tBTA_AV_API_DISCNT))) != NULL)
     {
         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;

     if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
     {
         p_buf->event = BTA_AV_API_START_EVT;
         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(BOOLEAN suspend)
 {
     tBTA_AV_API_STOP  *p_buf;

     if ((p_buf = (tBTA_AV_API_STOP *) GKI_getbuf(sizeof(tBTA_AV_API_STOP))) != NULL)
     {
         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, BOOLEAN suspend, UINT8 sep_info_idx,
                     UINT8 *p_codec_info, UINT8 num_protect, UINT8 *p_protect_info)
 {
     tBTA_AV_API_RCFG  *p_buf;

     if ((p_buf = (tBTA_AV_API_RCFG *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_RCFG) + num_protect))) != NULL)
     {
         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 *)(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 *p_data, UINT16 len)
 {
     tBTA_AV_API_PROTECT_REQ  *p_buf;

     if ((p_buf = (tBTA_AV_API_PROTECT_REQ *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_PROTECT_REQ) + len))) != NULL)
     {
         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 *) (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 error_code, UINT8 *p_data, UINT16 len)
 {
     tBTA_AV_API_PROTECT_RSP  *p_buf;

     if ((p_buf = (tBTA_AV_API_PROTECT_RSP *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_PROTECT_RSP) + len))) != NULL)
     {
         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 *) (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 rc_handle, UINT8 label, tBTA_AV_RC rc_id, tBTA_AV_STATE key_state)
 {
     tBTA_AV_API_REMOTE_CMD  *p_buf;

     if ((p_buf = (tBTA_AV_API_REMOTE_CMD *) GKI_getbuf(sizeof(tBTA_AV_API_REMOTE_CMD))) != NULL)
     {
         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_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 rc_handle, UINT8 label, tBTA_AV_CODE cmd_code, UINT8 *p_data, UINT16 len)
 {
     tBTA_AV_API_VENDOR  *p_buf;

     if ((p_buf = (tBTA_AV_API_VENDOR *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_VENDOR) + len))) != NULL)
     {
         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 *) (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 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code, UINT8 *p_data, UINT16 len, UINT32 company_id)
 {
     tBTA_AV_API_VENDOR  *p_buf;

     if ((p_buf = (tBTA_AV_API_VENDOR *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_VENDOR) + len))) != NULL)
     {
         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 *) (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;

     if ((p_buf = (tBTA_AV_API_OPEN_RC *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN_RC))) != NULL)
     {
         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 rc_handle)
 {
     tBTA_AV_API_CLOSE_RC  *p_buf;

     if ((p_buf = (tBTA_AV_API_CLOSE_RC *) GKI_getbuf(sizeof(tBTA_AV_API_CLOSE_RC))) != NULL)
     {
         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 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
                                BT_HDR *p_pkt)
 {
     tBTA_AV_API_META_RSP  *p_buf;

     if ((p_buf = (tBTA_AV_API_META_RSP *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_META_RSP)))) != NULL)
     {
         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 rc_handle, UINT8 label, tBTA_AV_CMD cmd_code, BT_HDR *p_pkt)
 {
     tBTA_AV_API_META_RSP  *p_buf;

     if ((p_buf = (tBTA_AV_API_META_RSP *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_META_RSP)))) != NULL)
     {
         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);
     }
 }

 #endif /* BTA_AV_INCLUDED */
	/******************************************************************************
	*
	* 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 "bt_target.h"
	#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)

	#include "bta_api.h"
	#include "bd.h"
	#include "bta_sys.h"
	#include "bta_av_api.h"
	#include "bta_av_int.h"
	#include "gki.h"
	#include <string.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;

	/* register with BTA system manager */
	GKI_sched_lock();
	bta_sys_register(BTA_ID_AV, &bta_av_reg);
	GKI_sched_unlock();

	if ((p_buf = (tBTA_AV_API_ENABLE *) GKI_getbuf(sizeof(tBTA_AV_API_ENABLE))) != NULL)
	{
	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;

	bta_sys_deregister(BTA_ID_AV);
	if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
	{
	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 app_id)
	{
	tBTA_AV_API_REG *p_buf;


	if ((p_buf = (tBTA_AV_API_REG *) GKI_getbuf(sizeof(tBTA_AV_API_REG))) != NULL)
	{
	p_buf->hdr.layer_specific = chnl;
	p_buf->hdr.event = BTA_AV_API_REGISTER_EVT;
	if(p_service_name)
	{
	BCM_STRNCPY_S(p_buf->p_service_name, sizeof(p_buf->p_service_name), p_service_name, BTA_SERVICE_NAME_LEN);
	p_buf->p_service_name[BTA_SERVICE_NAME_LEN-1] = 0;
	}
	else
	{
	p_buf->p_service_name[0] = 0;
	}
	p_buf->app_id = app_id;
	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;

	if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
	{
	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, BOOLEAN use_rc, tBTA_SEC sec_mask)
	{
	tBTA_AV_API_OPEN *p_buf;

	if ((p_buf = (tBTA_AV_API_OPEN *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN))) != NULL)
	{
	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;
	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;

	if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
	{
	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;

	if ((p_buf = (tBTA_AV_API_DISCNT *) GKI_getbuf(sizeof(tBTA_AV_API_DISCNT))) != NULL)
	{
	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;

	if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
	{
	p_buf->event = BTA_AV_API_START_EVT;
	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(BOOLEAN suspend)
	{
	tBTA_AV_API_STOP *p_buf;

	if ((p_buf = (tBTA_AV_API_STOP *) GKI_getbuf(sizeof(tBTA_AV_API_STOP))) != NULL)
	{
	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, BOOLEAN suspend, UINT8 sep_info_idx,
	UINT8 p_codec_info, UINT8 num_protect, UINT8 p_protect_info)
	{
	tBTA_AV_API_RCFG *p_buf;

	if ((p_buf = (tBTA_AV_API_RCFG *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_RCFG) + num_protect))) != NULL)
	{
	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 *)(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 *p_data, UINT16 len)
	{
	tBTA_AV_API_PROTECT_REQ *p_buf;

	if ((p_buf = (tBTA_AV_API_PROTECT_REQ *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_PROTECT_REQ) + len))) != NULL)
	{
	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 *) (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 error_code, UINT8 *p_data, UINT16 len)
	{
	tBTA_AV_API_PROTECT_RSP *p_buf;

	if ((p_buf = (tBTA_AV_API_PROTECT_RSP *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_PROTECT_RSP) + len))) != NULL)
	{
	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 *) (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 rc_handle, UINT8 label, tBTA_AV_RC rc_id, tBTA_AV_STATE key_state)
	{
	tBTA_AV_API_REMOTE_CMD *p_buf;

	if ((p_buf = (tBTA_AV_API_REMOTE_CMD *) GKI_getbuf(sizeof(tBTA_AV_API_REMOTE_CMD))) != NULL)
	{
	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_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 rc_handle, UINT8 label, tBTA_AV_CODE cmd_code, UINT8 *p_data, UINT16 len)
	{
	tBTA_AV_API_VENDOR *p_buf;

	if ((p_buf = (tBTA_AV_API_VENDOR *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_VENDOR) + len))) != NULL)
	{
	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 *) (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 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code, UINT8 *p_data, UINT16 len, UINT32 company_id)
	{
	tBTA_AV_API_VENDOR *p_buf;

	if ((p_buf = (tBTA_AV_API_VENDOR *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_VENDOR) + len))) != NULL)
	{
	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 *) (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;

	if ((p_buf = (tBTA_AV_API_OPEN_RC *) GKI_getbuf(sizeof(tBTA_AV_API_OPEN_RC))) != NULL)
	{
	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 rc_handle)
	{
	tBTA_AV_API_CLOSE_RC *p_buf;

	if ((p_buf = (tBTA_AV_API_CLOSE_RC *) GKI_getbuf(sizeof(tBTA_AV_API_CLOSE_RC))) != NULL)
	{
	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 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
	BT_HDR *p_pkt)
	{
	tBTA_AV_API_META_RSP *p_buf;

	if ((p_buf = (tBTA_AV_API_META_RSP *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_META_RSP)))) != NULL)
	{
	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 rc_handle, UINT8 label, tBTA_AV_CMD cmd_code, BT_HDR *p_pkt)
	{
	tBTA_AV_API_META_RSP *p_buf;

	if ((p_buf = (tBTA_AV_API_META_RSP *) GKI_getbuf((UINT16) (sizeof(tBTA_AV_API_META_RSP)))) != NULL)
	{
	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);
	}
	}

	#endif /* BTA_AV_INCLUDED */