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avrcp: use MTU stored in connection

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This commit is contained in:
Milanka Ringwald 2021-11-26 09:43:41 +01:00
parent f28ce84e1c
commit c3d92d4cd6
2 changed files with 5 additions and 5 deletions

8
src/classic/avrcp.c

@ -369,8 +369,8 @@ uint16_t avrcp_get_num_bytes_for_header(avrcp_command_opcode_t command_opcode, a
return offset;
}
static uint16_t avrcp_get_num_free_bytes_for_payload(uint16_t l2cap_cid, avrcp_command_opcode_t command_opcode, avctp_packet_type_t avctp_packet_type){
uint16_t max_frame_size = btstack_min(l2cap_get_remote_mtu_for_local_cid(l2cap_cid), AVRCP_MAX_AV_C_MESSAGE_FRAME_SIZE);
static uint16_t avrcp_get_num_free_bytes_for_payload(uint16_t l2cap_mtu, avrcp_command_opcode_t command_opcode, avctp_packet_type_t avctp_packet_type){
uint16_t max_frame_size = btstack_min(l2cap_mtu, AVRCP_MAX_AV_C_MESSAGE_FRAME_SIZE);
uint16_t payload_offset = avctp_get_num_bytes_for_header(avctp_packet_type) +
avrcp_get_num_bytes_for_header(command_opcode, avctp_packet_type);
@ -381,7 +381,7 @@ static uint16_t avrcp_get_num_free_bytes_for_payload(uint16_t l2cap_cid, avrcp_c
avctp_packet_type_t avctp_get_packet_type(avrcp_connection_t * connection, uint16_t * max_payload_size){
if (connection->data_offset == 0){
uint16_t max_payload_size_for_single_packet = avrcp_get_num_free_bytes_for_payload(connection->l2cap_signaling_cid,
uint16_t max_payload_size_for_single_packet = avrcp_get_num_free_bytes_for_payload(connection->l2cap_mtu,
connection->command_opcode,
AVCTP_SINGLE_PACKET);
if (max_payload_size_for_single_packet >= connection->data_len){
@ -394,7 +394,7 @@ avctp_packet_type_t avctp_get_packet_type(avrcp_connection_t * connection, uint1
}
} else {
// both packet types have the same single byte AVCTP header
*max_payload_size = avrcp_get_num_free_bytes_for_payload(connection->l2cap_signaling_cid,
*max_payload_size = avrcp_get_num_free_bytes_for_payload(connection->l2cap_mtu,
connection->command_opcode,
AVCTP_CONTINUE_PACKET);
if ((connection->data_len - connection->data_offset) > *max_payload_size){

2
src/classic/avrcp_target.c

@ -286,7 +286,7 @@ static void avrcp_send_response_with_avctp_fragmentation(avrcp_connection_t * co
uint8_t param_len = connection->data_len;
if (connection->avctp_packet_type == AVCTP_START_PACKET){
uint8_t max_frame_size = btstack_min(l2cap_get_remote_mtu_for_local_cid(connection->l2cap_signaling_cid), AVRCP_MAX_AV_C_MESSAGE_FRAME_SIZE);
uint8_t max_frame_size = btstack_min(connection->l2cap_mtu, AVRCP_MAX_AV_C_MESSAGE_FRAME_SIZE);
// first packet: max_payload_size
// rest packets
uint16_t num_payload_bytes = param_len - max_payload_size;