/*******************************************************************************
**
** Function bta_hf_client_do_disc
**
** Description Do service discovery.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_do_disc(void)
{
tSDP_UUID uuid_list[2];
UINT16 num_uuid = 1;
UINT16 attr_list[4];
UINT8 num_attr;
BOOLEAN db_inited = FALSE;
/* initiator; get proto list and features */
if (bta_hf_client_cb.scb.role == BTA_HF_CLIENT_INT) {
attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
attr_list[2] = ATTR_ID_BT_PROFILE_DESC_LIST;
attr_list[3] = ATTR_ID_SUPPORTED_FEATURES;
num_attr = 4;
uuid_list[0].uu.uuid16 = UUID_SERVCLASS_AG_HANDSFREE;
}
/* acceptor; get features */
else {
attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
attr_list[1] = ATTR_ID_BT_PROFILE_DESC_LIST;
attr_list[2] = ATTR_ID_SUPPORTED_FEATURES;
num_attr = 3;
uuid_list[0].uu.uuid16 = UUID_SERVCLASS_AG_HANDSFREE;
}
/* allocate buffer for sdp database */
bta_hf_client_cb.scb.p_disc_db = (tSDP_DISCOVERY_DB *) osi_malloc(BT_DEFAULT_BUFFER_SIZE);
if (bta_hf_client_cb.scb.p_disc_db) {
/* set up service discovery database; attr happens to be attr_list len */
uuid_list[0].len = LEN_UUID_16;
uuid_list[1].len = LEN_UUID_16;
db_inited = SDP_InitDiscoveryDb(bta_hf_client_cb.scb.p_disc_db, BT_DEFAULT_BUFFER_SIZE, num_uuid,
uuid_list, num_attr, attr_list);
}
if (db_inited) {
/*Service discovery not initiated */
db_inited = SDP_ServiceSearchAttributeRequest(bta_hf_client_cb.scb.peer_addr,
bta_hf_client_cb.scb.p_disc_db, bta_hf_client_sdp_cback);
}
if (!db_inited) {
/*free discover db */
bta_hf_client_free_db(NULL);
/* sent failed event */
bta_hf_client_sm_execute(BTA_HF_CLIENT_DISC_FAIL_EVT, NULL);
}
}
/******************************************************************************
**
** Function AVRC_FindService
**
** Description This function is called by the application to perform service
** discovery and retrieve AVRCP SDP record information from a
** peer device. Information is returned for the first service
** record found on the server that matches the service UUID.
** The callback function will be executed when service discovery
** is complete. There can only be one outstanding call to
** AVRC_FindService() at a time; the application must wait for
** the callback before it makes another call to the function.
** The application is responsible for allocating memory for the
** discovery database. It is recommended that the size of the
** discovery database be at least 300 bytes. The application
** can deallocate the memory after the callback function has
** executed.
**
** Input Parameters:
** service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET)
** or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL)
**
** bd_addr: BD address of the peer device.
**
** p_db: SDP discovery database parameters.
**
** p_cback: Pointer to the callback function.
**
** Output Parameters:
** None.
**
** Returns AVRC_SUCCESS if successful.
** AVRC_BAD_PARAMS if discovery database parameters are invalid.
** AVRC_NO_RESOURCES if there are not enough resources to
** perform the service search.
**
******************************************************************************/
UINT16 AVRC_FindService(UINT16 service_uuid, BD_ADDR bd_addr,
tAVRC_SDP_DB_PARAMS *p_db, tAVRC_FIND_CBACK *p_cback)
{
tSDP_UUID uuid_list;
BOOLEAN result = TRUE;
UINT16 a2d_attr_list[] = {ATTR_ID_SERVICE_CLASS_ID_LIST, /* update AVRC_NUM_ATTR, if changed */
ATTR_ID_PROTOCOL_DESC_LIST,
ATTR_ID_BT_PROFILE_DESC_LIST,
ATTR_ID_SERVICE_NAME,
ATTR_ID_SUPPORTED_FEATURES,
ATTR_ID_PROVIDER_NAME
};
AVRC_TRACE_API1("AVRC_FindService uuid: %x", service_uuid);
if( (service_uuid != UUID_SERVCLASS_AV_REM_CTRL_TARGET && service_uuid != UUID_SERVCLASS_AV_REMOTE_CONTROL) ||
p_db == NULL || p_db->p_db == NULL || p_cback == NULL)
return AVRC_BAD_PARAM;
/* check if it is busy */
if( avrc_cb.service_uuid == UUID_SERVCLASS_AV_REM_CTRL_TARGET ||
avrc_cb.service_uuid == UUID_SERVCLASS_AV_REMOTE_CONTROL)
return AVRC_NO_RESOURCES;
/* set up discovery database */
uuid_list.len = LEN_UUID_16;
uuid_list.uu.uuid16 = service_uuid;
if(p_db->p_attrs == NULL || p_db->num_attr == 0)
{
p_db->p_attrs = a2d_attr_list;
p_db->num_attr = AVRC_NUM_ATTR;
}
result = SDP_InitDiscoveryDb(p_db->p_db, p_db->db_len, 1, &uuid_list, p_db->num_attr,
p_db->p_attrs);
if (result == TRUE)
{
/* store service_uuid and discovery db pointer */
avrc_cb.p_db = p_db->p_db;
avrc_cb.service_uuid = service_uuid;
avrc_cb.p_cback = p_cback;
/* perform service search */
result = SDP_ServiceSearchAttributeRequest(bd_addr, p_db->p_db, avrc_sdp_cback);
}
return (result ? AVRC_SUCCESS : AVRC_FAIL);
}
/*******************************************************************************
**
** Function bta_ag_do_disc
**
** Description Do service discovery.
**
**
** Returns void
**
*******************************************************************************/
void bta_ag_do_disc(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK service)
{
tSDP_UUID uuid_list[2];
UINT16 num_uuid = 1;
UINT16 attr_list[4];
UINT8 num_attr;
BOOLEAN db_inited = FALSE;
/* HFP initiator; get proto list and features */
if (service & BTA_HFP_SERVICE_MASK && p_scb->role == BTA_AG_INT)
{
attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
attr_list[2] = ATTR_ID_BT_PROFILE_DESC_LIST;
attr_list[3] = ATTR_ID_SUPPORTED_FEATURES;
num_attr = 4;
uuid_list[0].uu.uuid16 = UUID_SERVCLASS_HF_HANDSFREE;
}
/* HFP acceptor; get features */
else if (service & BTA_HFP_SERVICE_MASK && p_scb->role == BTA_AG_ACP)
{
attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
attr_list[1] = ATTR_ID_BT_PROFILE_DESC_LIST;
attr_list[2] = ATTR_ID_SUPPORTED_FEATURES;
num_attr = 3;
uuid_list[0].uu.uuid16 = UUID_SERVCLASS_HF_HANDSFREE;
}
/* HSP initiator; get proto list */
else if (service & BTA_HSP_SERVICE_MASK && p_scb->role == BTA_AG_INT)
{
attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
attr_list[2] = ATTR_ID_BT_PROFILE_DESC_LIST;
attr_list[3] = ATTR_ID_REMOTE_AUDIO_VOLUME_CONTROL;
num_attr = 4;
uuid_list[0].uu.uuid16 = UUID_SERVCLASS_HEADSET; /* Legacy from HSP v1.0 */
if (p_scb->hsp_version >= HSP_VERSION_1_2)
{
uuid_list[1].uu.uuid16 = UUID_SERVCLASS_HEADSET_HS;
num_uuid = 2;
}
}
/* HSP acceptor; no discovery */
else
{
return;
}
/* allocate buffer for sdp database */
p_scb->p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(BTA_AG_DISC_BUF_SIZE);
if(p_scb->p_disc_db)
{
/* set up service discovery database; attr happens to be attr_list len */
uuid_list[0].len = LEN_UUID_16;
uuid_list[1].len = LEN_UUID_16;
db_inited = SDP_InitDiscoveryDb(p_scb->p_disc_db, BTA_AG_DISC_BUF_SIZE, num_uuid,
uuid_list, num_attr, attr_list);
}
if(db_inited)
{
/*Service discovery not initiated */
db_inited = SDP_ServiceSearchAttributeRequest(p_scb->peer_addr, p_scb->p_disc_db,
bta_ag_sdp_cback_tbl[bta_ag_scb_to_idx(p_scb) - 1]);
}
if(!db_inited)
{
/*free discover db */
bta_ag_free_db(p_scb, NULL);
/* sent failed event */
bta_ag_sm_execute(p_scb, BTA_AG_DISC_FAIL_EVT, NULL);
}
}
