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Diffstat (limited to 'stack/avrc/avrc_sdp.c')
| -rw-r--r-- | stack/avrc/avrc_sdp.c | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/stack/avrc/avrc_sdp.c b/stack/avrc/avrc_sdp.c new file mode 100644 index 0000000..427894c --- /dev/null +++ b/stack/avrc/avrc_sdp.c @@ -0,0 +1,297 @@ +/****************************************************************************** + * + * Copyright (C) 2003-2012 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. + * + ******************************************************************************/ + +/****************************************************************************** + * + * AVRCP SDP related functions + * + ******************************************************************************/ +#include <string.h> + +#include "gki.h" +#include "avrc_api.h" +#include "avrc_int.h" + +/***************************************************************************** +** Global data +*****************************************************************************/ +#if AVRC_DYNAMIC_MEMORY == FALSE +tAVRC_CB avrc_cb; +#endif + +/* update AVRC_NUM_PROTO_ELEMS if this constant is changed */ +const tSDP_PROTOCOL_ELEM avrc_proto_list [] = +{ + {UUID_PROTOCOL_L2CAP, 1, {AVCT_PSM, 0} }, + {UUID_PROTOCOL_AVCTP, 1, {AVCT_REV_1_0, 0} } +}; + + + +/****************************************************************************** +** +** Function avrc_sdp_cback +** +** Description This is the SDP callback function used by A2D_FindService. +** This function will be executed by SDP when the service +** search is completed. If the search is successful, it +** finds the first record in the database that matches the +** UUID of the search. Then retrieves various parameters +** from the record. When it is finished it calls the +** application callback function. +** +** Returns Nothing. +** +******************************************************************************/ +static void avrc_sdp_cback(UINT16 status) +{ + AVRC_TRACE_API1("avrc_sdp_cback status: %d", status); + + /* reset service_uuid, so can start another find service */ + avrc_cb.service_uuid = 0; + + /* return info from sdp record in app callback function */ + (*avrc_cb.p_cback) (status); + + return; +} + +/****************************************************************************** +** +** 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 AVRC_AddRecord +** +** Description This function is called to build an AVRCP SDP record. +** Prior to calling this function the application must +** call SDP_CreateRecord() to create an SDP record. +** +** Input Parameters: +** service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET) +** or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL) +** +** p_service_name: Pointer to a null-terminated character +** string containing the service name. +** If service name is not used set this to NULL. +** +** p_provider_name: Pointer to a null-terminated character +** string containing the provider name. +** If provider name is not used set this to NULL. +** +** categories: Supported categories. +** +** sdp_handle: SDP handle returned by SDP_CreateRecord(). +** +** Output Parameters: +** None. +** +** Returns AVRC_SUCCESS if successful. +** AVRC_NO_RESOURCES if not enough resources to build the SDP record. +** +******************************************************************************/ +UINT16 AVRC_AddRecord(UINT16 service_uuid, char *p_service_name, + char *p_provider_name, UINT16 categories, UINT32 sdp_handle) +{ + UINT16 browse_list[1]; + BOOLEAN result = TRUE; + UINT8 temp[8]; + UINT8 *p; + UINT16 count = 1; + UINT16 class_list[2]; + + + AVRC_TRACE_API1("AVRC_AddRecord uuid: %x", service_uuid); + + if( service_uuid != UUID_SERVCLASS_AV_REM_CTRL_TARGET && service_uuid != UUID_SERVCLASS_AV_REMOTE_CONTROL ) + return AVRC_BAD_PARAM; + + /* add service class id list */ + class_list[0] = service_uuid; + result &= SDP_AddServiceClassIdList(sdp_handle, count, class_list); + + /* add protocol descriptor list */ + result &= SDP_AddProtocolList(sdp_handle, AVRC_NUM_PROTO_ELEMS, (tSDP_PROTOCOL_ELEM *)avrc_proto_list); + + /* add profile descriptor list */ + result &= SDP_AddProfileDescriptorList(sdp_handle, UUID_SERVCLASS_AV_REMOTE_CONTROL, AVRC_REV_1_0); + + /* add supported categories */ + p = temp; + UINT16_TO_BE_STREAM(p, categories); + result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SUPPORTED_FEATURES, UINT_DESC_TYPE, + (UINT32)2, (UINT8*)temp); + + /* add provider name */ + if (p_provider_name != NULL) + { + result &= SDP_AddAttribute(sdp_handle, ATTR_ID_PROVIDER_NAME, TEXT_STR_DESC_TYPE, + (UINT32)(strlen(p_provider_name)+1), (UINT8 *) p_provider_name); + } + + /* add service name */ + if (p_service_name != NULL) + { + result &= SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE, + (UINT32)(strlen(p_service_name)+1), (UINT8 *) p_service_name); + } + + /* add browse group list */ + browse_list[0] = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP; + result &= SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, browse_list); + + + return (result ? AVRC_SUCCESS : AVRC_FAIL); +} + + + +/****************************************************************************** +** +** Function AVRC_SetTraceLevel +** +** Description Sets the trace level for AVRC. If 0xff is passed, the +** current trace level is returned. +** +** Input Parameters: +** new_level: The level to set the AVRC tracing to: +** 0xff-returns the current setting. +** 0-turns off tracing. +** >= 1-Errors. +** >= 2-Warnings. +** >= 3-APIs. +** >= 4-Events. +** >= 5-Debug. +** +** Returns The new trace level or current trace level if +** the input parameter is 0xff. +** +******************************************************************************/ +UINT8 AVRC_SetTraceLevel (UINT8 new_level) +{ + if (new_level != 0xFF) + avrc_cb.trace_level = new_level; + + return (avrc_cb.trace_level); +} + +/******************************************************************************* +** +** Function AVRC_Init +** +** Description This function is called at stack startup to allocate the +** control block (if using dynamic memory), and initializes the +** control block and tracing level. +** +** Returns void +** +*******************************************************************************/ +void AVRC_Init(void) +{ + memset(&avrc_cb, 0, sizeof(tAVRC_CB)); + +#if defined(AVRC_INITIAL_TRACE_LEVEL) + avrc_cb.trace_level = AVRC_INITIAL_TRACE_LEVEL; +#else + avrc_cb.trace_level = BT_TRACE_LEVEL_NONE; +#endif +} + |