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l2cap-ertm: free tx packets that receive an RR s-frame

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This commit is contained in:
Matthias Ringwald 2017-07-17 15:21:52 +02:00
parent 675e6881a7
commit bdbe2e4960
1 changed files with 19 additions and 2 deletions
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21
src/l2cap.c
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@ -2463,9 +2463,26 @@ static void l2cap_acl_handler(uint8_t packet_type, uint16_t channel, uint8_t *pa
uint16_t control = little_endian_read_16(packet, COMPLETE_L2CAP_HEADER); uint16_t control = little_endian_read_16(packet, COMPLETE_L2CAP_HEADER);
uint8_t req_seq = (control >> 8) & 0x3f; uint8_t req_seq = (control >> 8) & 0x3f;
if (control & 1){ if (control & 1){
// int poll = (control >> 7) & 0x01;
log_info("S-Frame not not implemented yet");
// S-Frame // S-Frame
// int poll = (control >> 7) & 0x01;
l2cap_supervisory_function_t s = (l2cap_supervisory_function_t) ((control >> 2) & 0x03);
l2cap_ertm_tx_packet_state_t * tx_state;
switch (s){
case L2CAP_SUPERVISORY_FUNCTION_RR_RECEIVER_READY:
tx_state = &l2cap_channel->tx_packets_state[l2cap_channel->tx_read_index];
if ( ((req_seq - 1) & 0x3f) == tx_state->tx_seq){
log_info("RR seq %u == seq of oldest tx packet -> packet done", req_seq);
l2cap_channel->tx_read_index++;
if (l2cap_channel->tx_read_index >= l2cap_channel->num_rx_buffers){
l2cap_channel->tx_read_index = 0;
}
} else {
log_info("RR seq %u != seq of oldest tx packet %u ???", req_seq, tx_state->tx_seq);
}
break;
default:
break;
}
break; break;
} else { } else {
// I-Frame // I-Frame