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avrcp_browsing_target: implement change path

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This commit is contained in:
Milanka Ringwald 2024-11-12 10:15:37 +01:00 committed by Matthias Ringwald
parent 63329298a1
commit 5d5682b540
3 changed files with 81 additions and 5 deletions
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5
src/classic/avrcp.h
View File

@ -441,6 +441,11 @@ typedef enum {
AVRCP_BROWSING_NOW_PLAYING
} avrcp_browsing_scope_t;
typedef enum {
AVRCP_BROWSING_DIRECTION_FOLDER_UP = 0x00,
AVRCP_BROWSING_DIRECTION_FOLDER_DOWN,
AVRCP_BROWSING_DIRECTION_FOLDER_RFU
} avrcp_browsing_direction_t;
typedef enum {
AVRCP_REMOTE_CAPABILITIES_NONE = 0,

79
src/classic/avrcp_browsing_target.c
View File

@ -106,7 +106,7 @@ static void avrcp_browsing_target_emit_get_folder_items(btstack_packet_handler_t
pos += 4;
big_endian_store_32(event, pos, connection->attr_bitmap);
pos += 4;
(*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
(*callback)(HCI_EVENT_PACKET, 0, event, pos);
}
static void avrcp_browsing_target_emit_get_total_num_items(btstack_packet_handler_t callback, uint16_t browsing_cid, avrcp_browsing_connection_t * connection){
@ -120,7 +120,7 @@ static void avrcp_browsing_target_emit_get_total_num_items(btstack_packet_handle
little_endian_store_16(event, pos, browsing_cid);
pos += 2;
event[pos++] = connection->scope;
(*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
(*callback)(HCI_EVENT_PACKET, 0, event, pos);
}
static void avrcp_browsing_target_emit_set_browsed_player(btstack_packet_handler_t callback, uint16_t browsing_cid, uint16_t browsed_player_id){
@ -135,13 +135,34 @@ static void avrcp_browsing_target_emit_set_browsed_player(btstack_packet_handler
pos += 2;
little_endian_store_16(event, pos, browsed_player_id);
pos += 2;
(*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
(*callback)(HCI_EVENT_PACKET, 0, event, pos);
}
static void avrcp_browsing_target_emit_change_path(btstack_packet_handler_t callback, uint16_t browsing_cid, uint16_t uid_counter, avrcp_browsing_direction_t direction, uint8_t * item_id){
btstack_assert(callback != NULL);
uint8_t event[19];
int pos = 0;
event[pos++] = HCI_EVENT_AVRCP_META;
event[pos++] = sizeof(event) - 2;
event[pos++] = AVRCP_SUBEVENT_BROWSING_CHANGE_PATH;
little_endian_store_16(event, pos, browsing_cid);
pos += 2;
little_endian_store_16(event, pos, uid_counter);
pos += 2;
event[pos++] = direction;
memcpy(&event[pos], item_id, 8);
pos += 8;
(*callback)(HCI_EVENT_PACKET, 0, event, pos);
}
static void avrcp_browsing_target_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(size);
avrcp_browsing_connection_t * browsing_connection;
avrcp_browsing_direction_t direction;
uint16_t uid_counter;
uint8_t * item_id;
switch (packet_type) {
case L2CAP_DATA_PACKET:{
@ -189,6 +210,7 @@ static void avrcp_browsing_target_packet_handler(uint8_t packet_type, uint16_t c
}
avrcp_browsing_target_emit_get_folder_items(avrcp_target_context.browsing_avrcp_callback, channel, browsing_connection);
break;
case AVRCP_PDU_ID_GET_TOTAL_NUMBER_OF_ITEMS:{
// send total num items
if (parameter_length != 1){
@ -206,14 +228,31 @@ static void avrcp_browsing_target_packet_handler(uint8_t packet_type, uint16_t c
avrcp_browsing_target_response_general_reject(browsing_connection, AVRCP_STATUS_INVALID_COMMAND);
break;
}
if ( (pos + 2) > size ){
avrcp_browsing_target_response_general_reject(browsing_connection, AVRCP_STATUS_INVALID_PLAYER_ID);
break;
}
avrcp_browsing_target_emit_set_browsed_player(avrcp_target_context.browsing_avrcp_callback, channel, big_endian_read_16(packet, pos));
break;
case AVRCP_PDU_ID_CHANGE_PATH:
// one level up or down in the virtual filesystem
if (parameter_length != 11){
avrcp_browsing_target_response_general_reject(browsing_connection, AVRCP_STATUS_INVALID_COMMAND);
break;
}
uid_counter = big_endian_read_16(packet, pos);
pos += 2;
direction = (avrcp_browsing_direction_t)packet[pos++];
if (direction > AVRCP_BROWSING_DIRECTION_FOLDER_RFU){
avrcp_browsing_target_response_general_reject(browsing_connection, AVRCP_STATUS_INVALID_DIRECTION);
break;
}
item_id = &packet[pos];
avrcp_browsing_target_emit_change_path(avrcp_target_context.browsing_avrcp_callback, channel, uid_counter, direction, item_id);
break;
default:
avrcp_browsing_target_response_general_reject(browsing_connection, AVRCP_STATUS_INVALID_COMMAND);
log_info("not parsed pdu ID 0x%02x", browsing_connection->pdu_id);
@ -221,6 +260,7 @@ static void avrcp_browsing_target_packet_handler(uint8_t packet_type, uint16_t c
}
browsing_connection->state = AVCTP_CONNECTION_OPENED;
break;
default:
break;
}
@ -332,6 +372,35 @@ uint8_t avrcp_browsing_target_send_get_folder_items_response(uint16_t avrcp_brow
return ERROR_CODE_SUCCESS;
}
uint8_t avrcp_browsing_target_send_change_path_response(uint16_t avrcp_browsing_cid, uint16_t uid_counter, avrcp_status_code_t status, uint32_t num_items){
avrcp_connection_t * avrcp_connection = avrcp_get_connection_for_browsing_cid_for_role(AVRCP_TARGET, avrcp_browsing_cid);
if (!avrcp_connection){
log_error("Could not find an AVRCP Target connection for browsing_cid 0x%02x.", avrcp_browsing_cid);
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
}
avrcp_browsing_connection_t * connection = avrcp_connection->browsing_connection;
if (!connection){
log_info("Could not find a browsing connection.");
return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
}
if (connection->state != AVCTP_CONNECTION_OPENED){
return ERROR_CODE_COMMAND_DISALLOWED;
}
uint16_t pos = 0;
connection->cmd_operands[pos++] = AVRCP_PDU_ID_CHANGE_PATH;
// Param length
big_endian_store_16(connection->cmd_operands, pos, 5);
pos += 2;
connection->cmd_operands[pos++] = status;
big_endian_store_32(connection->cmd_operands, pos, num_items);
connection->state = AVCTP_W2_SEND_RESPONSE;
avrcp_browsing_request_can_send_now(connection, connection->l2cap_browsing_cid);
return ERROR_CODE_SUCCESS;
}
uint8_t avrcp_browsing_target_send_accept_set_browsed_player(uint16_t avrcp_browsing_cid, uint16_t uid_counter, uint16_t browsed_player_id, uint8_t * response, uint16_t response_size){
avrcp_connection_t * avrcp_connection = avrcp_get_connection_for_browsing_cid_for_role(AVRCP_TARGET, avrcp_browsing_cid);
if (!avrcp_connection){

2
src/classic/avrcp_browsing_target.h
View File

@ -98,6 +98,8 @@ uint8_t avrcp_browsing_target_send_get_folder_items_response(uint16_t browsing_c
*/
uint8_t avrcp_browsing_target_send_get_total_num_items_response(uint16_t browsing_cid, uint16_t uid_counter, uint32_t total_num_items);
uint8_t avrcp_browsing_target_send_change_path_response(uint16_t avrcp_browsing_cid, uint16_t uid_counter, avrcp_status_code_t status, uint32_t num_items);
/**
* @brief De-Init AVRCP Browsing Controller
*/