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avrcp_target: implement response to PLAY ITEM

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Milanka Ringwald 2024-11-13 13:58:25 +01:00 committed by Matthias Ringwald
parent 01042db2ee
commit 1e4db4075b
3 changed files with 55 additions and 1 deletions
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5
src/classic/avrcp.h
View File

@ -393,6 +393,7 @@ typedef enum {
AVCTP_W4_STOP,
AVCTP_W2_SEND_COMMAND,
AVCTP_W2_SEND_RESPONSE,
AVCTP_W2_CHECK_DATABASE,
AVCTP_W2_RECEIVE_PRESS_RESPONSE,
AVCTP_W2_RECEIVE_RESPONSE,
AVCTP_W2_SEND_GET_ELEMENT_ATTRIBUTES_REQUEST,
@ -438,7 +439,8 @@ typedef enum {
AVRCP_BROWSING_MEDIA_PLAYER_LIST = 0x00,
AVRCP_BROWSING_MEDIA_PLAYER_VIRTUAL_FILESYSTEM,
AVRCP_BROWSING_SEARCH,
AVRCP_BROWSING_NOW_PLAYING
AVRCP_BROWSING_NOW_PLAYING,
AVRCP_BROWSING_RFU
} avrcp_browsing_scope_t;
typedef enum {
@ -740,6 +742,7 @@ typedef struct {
uint16_t target_addressed_player_id;
uint16_t target_uid_counter;
bool target_uids_changed;
avrcp_browsing_scope_t target_scope;
bool target_accept_response;

50
src/classic/avrcp_target.c
View File

@ -126,6 +126,25 @@ static void avrcp_target_emit_respond_vendor_dependent_query(btstack_packet_hand
(*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
}
static void avrcp_target_emit_respond_play_item(btstack_packet_handler_t callback, uint16_t avrcp_cid, uint16_t uid_counter, avrcp_browsing_scope_t scope, uint8_t * uid){
btstack_assert(callback != NULL);
uint8_t event[16];
int pos = 0;
event[pos++] = HCI_EVENT_AVRCP_META;
event[pos++] = sizeof(event) - 2;
event[pos++] = AVRCP_SUBEVENT_PLAY_ITEM;
little_endian_store_16(event, pos, avrcp_cid);
pos += 2;
little_endian_store_16(event, pos, uid_counter);
pos += 2;
event[pos++] = (uint8_t) scope;
memcpy(&event[pos], uid, 8);
pos += 8;
(*callback)(HCI_EVENT_PACKET, 0, event, pos);
}
// returns number of bytes stored
static uint16_t avrcp_target_pack_single_element_header(uint8_t * buffer, avrcp_media_attribute_id_t attr_id, uint16_t attr_value_size){
btstack_assert(attr_id > AVRCP_MEDIA_ATTR_ALL);
@ -1087,6 +1106,24 @@ static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connec
pos += 2;
// pos = 13
switch (pdu_id){
case AVRCP_PDU_ID_PLAY_ITEM:
if ( (pos + 11) > size){
avrcp_target_vendor_dependent_response_accept(connection, pdu_id, AVRCP_STATUS_INVALID_COMMAND);
return;
}
connection->target_scope = packet[pos++];
if (connection->target_scope >= AVRCP_BROWSING_RFU){
avrcp_target_vendor_dependent_response_accept(connection, pdu_id, AVRCP_STATUS_INVALID_PARAMETER);
return;
}
memcpy(connection->target_track_id, &packet[pos], 8);
pos += 8;
connection->target_uid_counter = big_endian_read_16(packet,pos);
connection->state = AVCTP_W2_CHECK_DATABASE;
avrcp_target_emit_respond_play_item(avrcp_target_context.avrcp_callback, connection->avrcp_cid, connection->target_uid_counter, connection->target_scope,connection->target_track_id);
break;
case AVRCP_PDU_ID_SET_ADDRESSED_PLAYER:{
if ((pos + 2) > size) return;
bool ok = length == 4;
@ -1460,3 +1497,16 @@ void avrcp_target_register_set_addressed_player_handler(bool (*callback)(uint16_
}
uint8_t avrcp_send_response_to_play_item(uint16_t avrcp_cid, avrcp_status_code_t status){
avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(avrcp_cid, AVRCP_TARGET);
if (connection == NULL){
return ERROR_CODE_COMMAND_DISALLOWED;
}
if (connection->state != AVCTP_W2_CHECK_DATABASE){
return ERROR_CODE_COMMAND_DISALLOWED;
}
if (status != AVRCP_STATUS_SUCCESS){
return avrcp_target_response_vendor_dependent_reject(connection, AVRCP_PDU_ID_PLAY_ITEM, status);
}
return avrcp_target_vendor_dependent_response_accept(connection, AVRCP_PDU_ID_PLAY_ITEM, status);
}

1
src/classic/avrcp_target.h
View File

@ -238,6 +238,7 @@ uint8_t avrcp_target_operation_accepted(uint16_t avrcp_cid, avrcp_operation_id_t
uint8_t avrcp_target_operation_not_implemented(uint16_t avrcp_cid, avrcp_operation_id_t opid, uint8_t operands_length, uint8_t operand);
uint8_t avrcp_target_uids_changed(uint16_t avrcp_cid, uint16_t uid_counter);
uint8_t avrcp_send_response_to_play_item(uint16_t avrcp_cid, avrcp_status_code_t status);
/**
* @brief De-Init AVRCP Browsing Target