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arq fixes

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dj2ls 2022-01-07 11:44:35 +01:00
parent 92087da49f
commit 64922fee9e
1 changed files with 16 additions and 18 deletions
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34
tnc/data_handler.py
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@ -46,7 +46,8 @@ class DATA():
self.data_frame_bof = b'BOF'#b'\xAA\xAA' # 2 bytes for the BOF End of File indicator in a data frame
self.data_frame_eof = b'EOF'#b'\xFF\xFF' # 2 bytes for the EOF End of File indicator in a data frame
self.rx_frame_bof_received = False
self.rx_frame_eof_received = False
@ -131,15 +132,17 @@ class DATA():
if 50 >= frametype >= 10:
# get snr of received data
snr = self.calculate_snr(freedv)
#snr = self.calculate_snr(freedv)
# we need to find a wy fixing this because of mooving to class system this isn't working anymore
snr = static.SNR
structlog.get_logger("structlog").debug("[TNC] RX SNR", snr=snr)
# send payload data to arq checker without CRC16
self.arq_data_received(bytes(bytes_out[:-2]), bytes_per_frame, snr, freedv)
# if we received the last frame of a burst or the last remaining rpt frame, do a modem unsync
if static.RX_BURST_BUFFER.count(None) <= 1 or (frame+1) == n_frames_per_burst:
structlog.get_logger("structlog").debug(f"LAST FRAME OF BURST --> UNSYNC {frame+1}/{n_frames_per_burst}")
self.c_lib.freedv_set_sync(freedv, 0)
#if static.RX_BURST_BUFFER.count(None) <= 1 or (frame+1) == n_frames_per_burst:
# structlog.get_logger("structlog").debug(f"LAST FRAME OF BURST --> UNSYNC {frame+1}/{n_frames_per_burst}")
# self.c_lib.freedv_set_sync(freedv, 0)
# BURST ACK
elif frametype == 60:
@ -265,7 +268,7 @@ class DATA():
static.RX_BURST_BUFFER = []
# lets check if we didnt receive a BOF and EOF yet to avoid sending ack frames if we already received all data
if not RX_FRAME_BOF_RECEIVED and not RX_FRAME_EOF_RECEIVED and data_in.find(self.data_frame_eof) < 0:
if not self.rx_frame_bof_received and not self.rx_frame_eof_received and data_in.find(self.data_frame_eof) < 0:
# create an ack frame
ack_frame = bytearray(14)
@ -322,8 +325,8 @@ class DATA():
eof_position = static.RX_FRAME_BUFFER.find(self.data_frame_eof)
if bof_position >= 0 and eof_position > 0 and not None in static.RX_BURST_BUFFER:
print(f"bof_position {bof_position} / eof_position {eof_position}")
RX_FRAME_BOF_RECEIVED = True
RX_FRAME_EOF_RECEIVED = True
self.rx_frame_bof_received = True
self.rx_frame_eof_received = True
#now extract raw data from buffer
payload = static.RX_FRAME_BUFFER[bof_position+len(self.data_frame_bof):eof_position]
@ -404,9 +407,6 @@ class DATA():
def arq_transmit(self, data_out:bytes, mode:int, n_frames_per_burst:int):
global BURST_ACK_SNR
#global TX_START_OF_TRANSMISSION
global TESTMODE
TX_N_SENT_BYTES = 0 # already sent bytes per data frame
@ -520,6 +520,7 @@ class DATA():
burstacktimeout = time.time() + BURST_ACK_TIMEOUT_SECONDS
while not self.burst_ack_received and not self.rpt_request_received and not self.data_frame_ack_received and time.time() < burstacktimeout and static.ARQ_STATE:
time.sleep(0.001)
print(self.burst_ack_received)
# once we received a burst ack, reset its state and break the RETRIES loop
if self.burst_ack_received:
@ -578,7 +579,7 @@ class DATA():
# signalling frames received
def burst_ack_received(self, data_in:bytes):
global BURST_ACK_SNR
@ -913,14 +914,11 @@ class DATA():
# ----------------------CLEANUP AND RESET FUNCTIONS
def arq_cleanup(self):
global RX_FRAME_BOF_RECEIVED
global RX_FRAME_EOF_RECEIVED
global BURST_ACK_SNR
structlog.get_logger("structlog").debug("cleanup")
RX_FRAME_BOF_RECEIVED = False
RX_FRAME_EOF_RECEIVED = False
self.rx_frame_bof_received = False
self.rx_frame_eof_received = False
static.TNC_STATE = 'IDLE'
static.ARQ_STATE = False
self.burst_ack_received = False