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avrcp: extract AVRCP Browsing PSM from SDP record

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This commit is contained in:
Matthias Ringwald 2017-07-10 18:02:03 +02:00
parent a0f524f0c0
commit 227d16a53b
2 changed files with 44 additions and 2 deletions
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44
src/classic/avrcp.c
View File

@ -580,7 +580,6 @@ static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t c
attribute_value[sdp_event_query_attribute_byte_get_data_offset(packet)] = sdp_event_query_attribute_byte_get_data(packet);
if ((uint16_t)(sdp_event_query_attribute_byte_get_data_offset(packet)+1) == sdp_event_query_attribute_byte_get_attribute_length(packet)) {
switch(sdp_event_query_attribute_byte_get_attribute_id(packet)) {
case BLUETOOTH_ATTRIBUTE_SERVICE_CLASS_ID_LIST:
if (de_get_element_type(attribute_value) != DE_DES) break;
@ -641,6 +640,47 @@ static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t c
}
}
break;
case BLUETOOTH_ATTRIBUTE_ADDITIONAL_PROTOCOL_DESCRIPTOR_LISTS: {
// log_info("SDP Attribute: 0x%04x", sdp_event_query_attribute_byte_get_attribute_id(packet));
if (de_get_element_type(attribute_value) != DE_DES) break;
des_iterator_t des_list_0_it;
uint8_t *element_0;
des_iterator_init(&des_list_0_it, attribute_value);
element_0 = des_iterator_get_element(&des_list_0_it);
for (des_iterator_init(&des_list_it, element_0); des_iterator_has_more(&des_list_it); des_iterator_next(&des_list_it)) {
uint8_t *des_element;
uint8_t *element;
uint32_t uuid;
if (des_iterator_get_type(&des_list_it) != DE_DES) continue;
des_element = des_iterator_get_element(&des_list_it);
des_iterator_init(&prot_it, des_element);
element = des_iterator_get_element(&prot_it);
if (de_get_element_type(element) != DE_UUID) continue;
uuid = de_get_uuid32(element);
switch (uuid){
case BLUETOOTH_PROTOCOL_L2CAP:
if (!des_iterator_has_more(&prot_it)) continue;
des_iterator_next(&prot_it);
de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_query_context.avrcp_browsing_l2cap_psm);
break;
case BLUETOOTH_PROTOCOL_AVCTP:
if (!des_iterator_has_more(&prot_it)) continue;
des_iterator_next(&prot_it);
de_element_get_uint16(des_iterator_get_element(&prot_it), &sdp_query_context.avrcp_browsing_version);
break;
default:
break;
}
}
}
break;
default:
break;
}
@ -657,7 +697,7 @@ static void avrcp_handle_sdp_client_query_result(uint8_t packet_type, uint16_t c
avrcp_emit_connection_established(sdp_query_context.avrcp_context->avrcp_callback, sdp_query_context.connection->avrcp_cid, sdp_query_context.connection->remote_addr, SDP_SERVICE_NOT_FOUND);
break;
}
log_info("AVRCP Control PSM 0x%02x", sdp_query_context.avrcp_l2cap_psm);
log_info("AVRCP Control PSM 0x%02x, Browsing PSM 0x%02x", sdp_query_context.avrcp_l2cap_psm, sdp_query_context.avrcp_browsing_l2cap_psm);
sdp_query_context.connection->state = AVCTP_CONNECTION_W4_L2CAP_CONNECTED;
l2cap_create_channel(sdp_query_context.avrcp_context->packet_handler, sdp_query_context.connection->remote_addr, sdp_query_context.avrcp_l2cap_psm, l2cap_max_mtu(), NULL);

2
src/classic/avrcp.h
View File

@ -251,6 +251,8 @@ typedef struct {
avrcp_context_t * avrcp_context;
uint16_t avrcp_l2cap_psm;
uint16_t avrcp_version;
uint16_t avrcp_browsing_l2cap_psm;
uint16_t avrcp_browsing_version;
uint8_t role_supported;
} avrcp_sdp_query_context_t;