353 lines
12 KiB
C
353 lines
12 KiB
C
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/******************************************************************************
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*
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* Copyright (C) 2003-2013 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* AVRCP SDP related functions
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*
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******************************************************************************/
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#include <string.h>
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#include "gki.h"
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#include "avrc_api.h"
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#include "avrc_int.h"
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#ifndef SDP_AVRCP_1_4
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#define SDP_AVRCP_1_4 FALSE
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#endif
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#ifndef SDP_AVCTP_1_4
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#define SDP_AVCTP_1_4 TRUE
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#endif
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/*****************************************************************************
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** Global data
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*****************************************************************************/
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#if AVRC_DYNAMIC_MEMORY == FALSE
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tAVRC_CB avrc_cb;
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#endif
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/* update AVRC_NUM_PROTO_ELEMS if this constant is changed */
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const tSDP_PROTOCOL_ELEM avrc_proto_list [] =
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{
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{UUID_PROTOCOL_L2CAP, 1, {AVCT_PSM, 0} },
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#if SDP_AVCTP_1_4 == TRUE
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{UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_4, 0} }
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#else
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#if SDP_AVRCP_1_4 == TRUE
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{UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_3, 0} }
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#else
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#if AVRC_METADATA_INCLUDED == TRUE
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{UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_2, 0} }
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#else
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{UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_0, 0} }
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#endif
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#endif
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#endif
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};
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#if SDP_AVRCP_1_4 == TRUE
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const tSDP_PROTO_LIST_ELEM avrc_add_proto_list [] =
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{
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{AVRC_NUM_PROTO_ELEMS,
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{
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{UUID_PROTOCOL_L2CAP, 1, {AVCT_BR_PSM, 0} },
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{UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_3, 0} }}}
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};
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#endif
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/******************************************************************************
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**
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** Function avrc_sdp_cback
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**
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** Description This is the SDP callback function used by A2D_FindService.
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** This function will be executed by SDP when the service
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** search is completed. If the search is successful, it
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** finds the first record in the database that matches the
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** UUID of the search. Then retrieves various parameters
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** from the record. When it is finished it calls the
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** application callback function.
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**
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** Returns Nothing.
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**
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******************************************************************************/
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static void avrc_sdp_cback(UINT16 status)
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{
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AVRC_TRACE_API("avrc_sdp_cback status: %d", status);
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/* reset service_uuid, so can start another find service */
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avrc_cb.service_uuid = 0;
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/* return info from sdp record in app callback function */
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(*avrc_cb.p_cback) (status);
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return;
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}
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/******************************************************************************
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**
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** Function AVRC_FindService
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**
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** Description This function is called by the application to perform service
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** discovery and retrieve AVRCP SDP record information from a
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** peer device. Information is returned for the first service
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** record found on the server that matches the service UUID.
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** The callback function will be executed when service discovery
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** is complete. There can only be one outstanding call to
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** AVRC_FindService() at a time; the application must wait for
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** the callback before it makes another call to the function.
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** The application is responsible for allocating memory for the
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** discovery database. It is recommended that the size of the
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** discovery database be at least 300 bytes. The application
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** can deallocate the memory after the callback function has
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** executed.
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**
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** Input Parameters:
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** service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET)
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** or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL)
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**
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** bd_addr: BD address of the peer device.
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**
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** p_db: SDP discovery database parameters.
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**
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** p_cback: Pointer to the callback function.
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**
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** Output Parameters:
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** None.
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**
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** Returns AVRC_SUCCESS if successful.
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** AVRC_BAD_PARAMS if discovery database parameters are invalid.
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** AVRC_NO_RESOURCES if there are not enough resources to
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** perform the service search.
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**
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******************************************************************************/
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UINT16 AVRC_FindService(UINT16 service_uuid, BD_ADDR bd_addr,
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tAVRC_SDP_DB_PARAMS *p_db, tAVRC_FIND_CBACK *p_cback)
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{
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tSDP_UUID uuid_list;
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BOOLEAN result = TRUE;
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UINT16 a2d_attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, /* update AVRC_NUM_ATTR, if changed */
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ATTR_ID_PROTOCOL_DESC_LIST,
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ATTR_ID_BT_PROFILE_DESC_LIST,
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ATTR_ID_SERVICE_NAME,
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ATTR_ID_SUPPORTED_FEATURES,
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ATTR_ID_PROVIDER_NAME};
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AVRC_TRACE_API("AVRC_FindService uuid: %x", service_uuid);
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if( (service_uuid != UUID_SERVCLASS_AV_REM_CTRL_TARGET && service_uuid != UUID_SERVCLASS_AV_REMOTE_CONTROL) ||
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p_db == NULL || p_db->p_db == NULL || p_cback == NULL)
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return AVRC_BAD_PARAM;
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/* check if it is busy */
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if( avrc_cb.service_uuid == UUID_SERVCLASS_AV_REM_CTRL_TARGET ||
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avrc_cb.service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL)
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return AVRC_NO_RESOURCES;
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/* set up discovery database */
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uuid_list.len = LEN_UUID_16;
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uuid_list.uu.uuid16 = service_uuid;
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if(p_db->p_attrs == NULL || p_db->num_attr == 0)
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{
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p_db->p_attrs = a2d_attr_list;
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p_db->num_attr = AVRC_NUM_ATTR;
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}
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result = SDP_InitDiscoveryDb(p_db->p_db, p_db->db_len, 1, &uuid_list, p_db->num_attr,
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p_db->p_attrs);
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if (result == TRUE)
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{
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/* store service_uuid and discovery db pointer */
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avrc_cb.p_db = p_db->p_db;
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avrc_cb.service_uuid = service_uuid;
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avrc_cb.p_cback = p_cback;
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/* perform service search */
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result = SDP_ServiceSearchAttributeRequest(bd_addr, p_db->p_db, avrc_sdp_cback);
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}
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return (result ? AVRC_SUCCESS : AVRC_FAIL);
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}
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/******************************************************************************
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**
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** Function AVRC_AddRecord
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**
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** Description This function is called to build an AVRCP SDP record.
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** Prior to calling this function the application must
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** call SDP_CreateRecord() to create an SDP record.
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**
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** Input Parameters:
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** service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET)
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** or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL)
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**
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** p_service_name: Pointer to a null-terminated character
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** string containing the service name.
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** If service name is not used set this to NULL.
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**
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** p_provider_name: Pointer to a null-terminated character
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** string containing the provider name.
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** If provider name is not used set this to NULL.
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**
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** categories: Supported categories.
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**
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** sdp_handle: SDP handle returned by SDP_CreateRecord().
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**
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** Output Parameters:
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** None.
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**
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** Returns AVRC_SUCCESS if successful.
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** AVRC_NO_RESOURCES if not enough resources to build the SDP record.
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**
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******************************************************************************/
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UINT16 AVRC_AddRecord(UINT16 service_uuid, char *p_service_name,
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char *p_provider_name, UINT16 categories, UINT32 sdp_handle)
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{
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UINT16 browse_list[1];
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BOOLEAN result = TRUE;
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UINT8 temp[8];
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UINT8 *p;
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UINT16 count = 1;
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UINT16 class_list[2];
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AVRC_TRACE_API("AVRC_AddRecord uuid: %x", service_uuid);
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if( service_uuid != UUID_SERVCLASS_AV_REM_CTRL_TARGET && service_uuid != UUID_SERVCLASS_AV_REMOTE_CONTROL )
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return AVRC_BAD_PARAM;
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/* add service class id list */
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class_list[0] = service_uuid;
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#if SDP_AVCTP_1_4 == TRUE
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if( service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL )
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{
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class_list[1] = UUID_SERVCLASS_AV_REM_CTRL_CONTROL;
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count = 2;
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}
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#else
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#if SDP_AVRCP_1_4 == TRUE
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if( service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL )
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{
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class_list[1] = UUID_SERVCLASS_AV_REM_CTRL_CONTROL;
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count = 2;
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}
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#endif
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#endif
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result &= SDP_AddServiceClassIdList(sdp_handle, count, class_list);
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/* add protocol descriptor list */
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result &= SDP_AddProtocolList(sdp_handle, AVRC_NUM_PROTO_ELEMS, (tSDP_PROTOCOL_ELEM *)avrc_proto_list);
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/* add profile descriptor list */
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#if SDP_AVRCP_1_4 == TRUE
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/* additional protocol list to include browsing channel */
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result &= SDP_AddAdditionProtoLists( sdp_handle, 1, (tSDP_PROTO_LIST_ELEM *)avrc_add_proto_list);
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result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_AV_REMOTE_CONTROL, AVRC_REV_1_4);
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#else
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#if AVRC_METADATA_INCLUDED == TRUE
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result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_AV_REMOTE_CONTROL, AVRC_REV_1_3);
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#else
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result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_AV_REMOTE_CONTROL, AVRC_REV_1_0);
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#endif
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#endif
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/* add supported categories */
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p = temp;
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UINT16_TO_BE_STREAM(p, categories);
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result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE,
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(UINT32)2, (UINT8*)temp);
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/* add provider name */
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if (p_provider_name != NULL)
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{
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result &= SDP_AddAttribute(sdp_handle, ATTR_ID_PROVIDER_NAME, TEXT_STR_DESC_TYPE,
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(UINT32)(strlen(p_provider_name)+1), (UINT8 *) p_provider_name);
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}
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/* add service name */
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if (p_service_name != NULL)
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{
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result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE,
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(UINT32)(strlen(p_service_name)+1), (UINT8 *) p_service_name);
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}
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/* add browse group list */
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browse_list[0] = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
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result &= SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list);
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return (result ? AVRC_SUCCESS : AVRC_FAIL);
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}
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/******************************************************************************
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**
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** Function AVRC_SetTraceLevel
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**
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** Description Sets the trace level for AVRC. If 0xff is passed, the
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** current trace level is returned.
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**
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** Input Parameters:
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** new_level: The level to set the AVRC tracing to:
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** 0xff-returns the current setting.
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** 0-turns off tracing.
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** >= 1-Errors.
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** >= 2-Warnings.
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** >= 3-APIs.
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** >= 4-Events.
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** >= 5-Debug.
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**
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** Returns The new trace level or current trace level if
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** the input parameter is 0xff.
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**
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******************************************************************************/
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UINT8 AVRC_SetTraceLevel (UINT8 new_level)
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{
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if (new_level != 0xFF)
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avrc_cb.trace_level = new_level;
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return (avrc_cb.trace_level);
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}
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/*******************************************************************************
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**
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** Function AVRC_Init
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**
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** Description This function is called at stack startup to allocate the
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** control block (if using dynamic memory), and initializes the
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** control block and tracing level.
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**
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** Returns void
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**
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*******************************************************************************/
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void AVRC_Init(void)
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{
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memset(&avrc_cb, 0, sizeof(tAVRC_CB));
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#if defined(AVRC_INITIAL_TRACE_LEVEL)
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avrc_cb.trace_level = AVRC_INITIAL_TRACE_LEVEL;
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#else
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avrc_cb.trace_level = BT_TRACE_LEVEL_NONE;
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#endif
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}
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