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https://github.com/DJ2LS/FreeDATA
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DJ2LS
GitHub
commit
f789925b50
440
arq.py
440
arq.py
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@ -13,35 +13,18 @@ from random import randrange
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import static
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import modem
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import helpers
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import main
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modem = modem.RF()
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import helpers
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static.ARQ_PAYLOAD_PER_FRAME = static.FREEDV_DATA_PAYLOAD_PER_FRAME - 3 #6?!
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static.ARQ_ACK_PAYLOAD_PER_FRAME = 14 - 2#
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def arq_ack_timeout():
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static.ARQ_ACK_TIMEOUT = 1
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def data_received(data_in):
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# arqframe = frame_type + \ # 1 [:1] # frame type and current number of arq frame of (current) burst
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# bytes([static.ARQ_TX_N_FRAMES_PER_BURST]) + \ # 1 [1:2] # total number of arq frames per (current) burst
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# static.ARQ_N_CURRENT_ARQ_FRAME + \ # 2 [2:4] # current arq frame number
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# static.ARQ_N_TOTAL_ARQ_FRAMES + \ # 2 [4:6] # total number arq frames
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# static.ARQ_BURST_PAYLOAD_CRC + \ # 2 [6:8] # arq crc
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# payload_data # N [8:N] # payload data
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static.ARQ_N_FRAME = int.from_bytes(bytes(data_in[:1]), "big") - 10 #get number of burst frame
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static.ARQ_N_FRAME = int.from_bytes(bytes(data_in[:1]), "big") - 10 #get number of burst frame
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static.ARQ_N_RX_FRAMES_PER_BURSTS = int.from_bytes(bytes(data_in[1:2]), "big") #get number of bursts from received frame
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static.ARQ_RX_N_CURRENT_ARQ_FRAME = int.from_bytes(bytes(data_in[2:4]), "big") #get current number of total frames
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static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = int.from_bytes(bytes(data_in[4:6]), "big") # get get total number of frames
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static.ARQ_BURST_PAYLOAD_CRC = data_in[6:8]
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logging.debug("----------------------------------------------------------------")
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@ -49,90 +32,96 @@ def data_received(data_in):
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logging.debug("ARQ_N_RX_FRAMES_PER_BURSTS: " + str(static.ARQ_N_RX_FRAMES_PER_BURSTS))
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logging.debug("ARQ_RX_N_CURRENT_ARQ_FRAME: " + str(static.ARQ_RX_N_CURRENT_ARQ_FRAME))
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logging.debug("ARQ_N_ARQ_FRAMES_PER_DATA_FRAME: " + str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME))
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logging.debug("static.ARQ_BURST_PAYLOAD_CRC: " + str(static.ARQ_BURST_PAYLOAD_CRC))
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logging.debug("----------------------------------------------------------------")
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arq_percent_burst = int((static.ARQ_N_FRAME / static.ARQ_N_RX_FRAMES_PER_BURSTS)*100)
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arq_percent_frame = int(((static.ARQ_RX_N_CURRENT_ARQ_FRAME)/static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME)*100)
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logging.info("ARQ | RX | ARQ FRAME [" + str(static.ARQ_N_FRAME) + "/" + str(static.ARQ_N_RX_FRAMES_PER_BURSTS) + "] [" + str(arq_percent_burst).zfill(3) + "%] --- TOTAL [" + str(static.ARQ_RX_N_CURRENT_ARQ_FRAME) + "/" + str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME) + "] [" + str(arq_percent_frame).zfill(3) + "%]" )
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logging.log(24, "ARQ | RX | ARQ FRAME [" + str(static.ARQ_N_FRAME) + "/" + str(static.ARQ_N_RX_FRAMES_PER_BURSTS) + "] [" + str(arq_percent_burst).zfill(3) + "%] --- TOTAL [" + str(static.ARQ_RX_N_CURRENT_ARQ_FRAME) + "/" + str(static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME) + "] [" + str(arq_percent_frame).zfill(3) + "%]" )
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#allocate ARQ_RX_FRAME_BUFFER as a list with "None" if not already done. This should be done only once per burst!
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# here we will save the N frame of a data frame to N list position so we can explicit search for it
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if static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME != len(static.ARQ_RX_FRAME_BUFFER) and static.ARQ_RX_N_CURRENT_ARQ_FRAME == 1:
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# delete frame buffer if first frame to make sure the buffer is cleared and no junks of a old frame is remaining
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if static.ARQ_RX_N_CURRENT_ARQ_FRAME == 1:
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static.ARQ_RX_FRAME_BUFFER = []
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try:
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static.ARQ_RX_FRAME_BUFFER[static.ARQ_RX_N_CURRENT_ARQ_FRAME] = bytes(data_in)
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except IndexError:
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static.ARQ_RX_FRAME_BUFFER = []
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for i in range(0,static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME+1):
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static.ARQ_RX_FRAME_BUFFER.insert(i,None)
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static.ARQ_RX_FRAME_BUFFER[static.ARQ_RX_N_CURRENT_ARQ_FRAME] = bytes(data_in)
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static.ARQ_FRAME_BOF_RECEIVED = False
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static.ARQ_FRAME_EOF_RECEIVED = False
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try:
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static.ARQ_RX_BURST_BUFFER[static.ARQ_N_FRAME] = bytes(data_in)
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#allocate ARQ_RX_BURST_BUFFER as a list with "None" if not already done. This should be done only once per burst!
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# here we will save the N frame of a burst to N list position so we can explicit search for it
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if static.ARQ_N_RX_FRAMES_PER_BURSTS != len(static.ARQ_RX_BURST_BUFFER) and static.ARQ_N_FRAME == 1:
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except IndexError:
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static.ARQ_RX_BURST_BUFFER = []
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for i in range(0,static.ARQ_N_RX_FRAMES_PER_BURSTS+1):
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static.ARQ_RX_BURST_BUFFER.insert(i,None)
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# now we add the incoming data to the specified position in our lists
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static.ARQ_RX_BURST_BUFFER[static.ARQ_N_FRAME] = bytes(data_in)
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static.ARQ_RX_FRAME_BUFFER[static.ARQ_RX_N_CURRENT_ARQ_FRAME] = bytes(data_in)
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# -------------------------- ARQ BURST CHECKER
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# run only if we recieved all ARQ FRAMES per ARQ BURST
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burst_total_payload = bytearray()
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if static.ARQ_N_FRAME == static.ARQ_N_RX_FRAMES_PER_BURSTS: #if received bursts are equal to burst number in frame
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#here we get the total payload for the frame to calculate the crc
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for n_raw_frame in range(1,len(static.ARQ_RX_BURST_BUFFER)):
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# we need to check if we have a None or received data in list
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if static.ARQ_RX_BURST_BUFFER[n_raw_frame] != None:
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burst_frame = static.ARQ_RX_BURST_BUFFER[n_raw_frame] #get burst frame
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burst_payload = burst_frame[8:] #remove frame type and burst CRC #4
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burst_total_payload = burst_total_payload + burst_payload #stick bursts together
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# ------------------ calculate CRC of BURST
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burst_payload_crc = helpers.get_crc_16(burst_total_payload)
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# IF BURST CRC IS CORRECT, APPEND BURST TO BUFFER AND SEND ACK FRAME
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if burst_payload_crc == data_in[6:8]:
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#BUILDING ACK FRAME FOR BURST -----------------------------------------------
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#ack_payload = bytes(burst_payload_crc)
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ack_frame = b'<'+ bytes(burst_payload_crc) # < = 60
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ack_buffer = bytearray(static.ARQ_ACK_PAYLOAD_PER_FRAME)
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ack_buffer[:len(ack_frame)] = ack_frame # set buffersize to length of data which will be send
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#TRANSMIT ACK FRAME FOR BURST-----------------------------------------------
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logging.info("ARQ | TX | ARQ BURST ACK [" + str(data_in[6:8].hex()) +"]")
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modem.transmit_arq_ack(ack_buffer)
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# ----------------------------------------------------------------
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static.ARQ_RX_BURST_BUFFER = [] # CLEAR RX BURST BUFFER AFTER SENDING DATA
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else: #IF burst payload crc and input crc are NOT equal
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logging.info("ARQ BURST CRC NOT EQUAL! [" + str(data_in[6:8]) + "]")
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static.ARQ_RX_BURST_BUFFER = [] #erase ARQ RX Burst buffer
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static.ARQ_RX_BURST_BUFFER[static.ARQ_N_FRAME] = bytes(data_in)
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# - ------------------------- ARQ BURST CHECKER
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# run only if we recieved all ARQ FRAMES per ARQ BURST
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if static.ARQ_RX_BURST_BUFFER.count(None) == 1: #count nones
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logging.info("ARQ | TX | BURST ACK")
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#BUILDING ACK FRAME FOR BURST -----------------------------------------------
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ack_payload = b'BURST_ACK'
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ack_frame = b'<' + ack_payload # < = 60
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#TRANSMIT ACK FRAME FOR BURST-----------------------------------------------
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modem.transmit_arq_ack(ack_frame)
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#clear burst buffer
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static.ARQ_RX_BURST_BUFFER = []
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#if nframes are unequal to expected frames per burst
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else:
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#just a placeholder at this time
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pass
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#if decoded N frames are unequal to expected frames per burst
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elif static.ARQ_N_FRAME == static.ARQ_N_RX_FRAMES_PER_BURSTS and static.ARQ_RX_BURST_BUFFER.count(None) != 1:
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# --------------- CHECK WHICH BURST FRAMES WE ARE MISSING -------------------------------------------
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missing_frames = b''
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for burstnumber in range(1,len(static.ARQ_RX_BURST_BUFFER)):
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if static.ARQ_RX_BURST_BUFFER[burstnumber] == None:
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#frame_number = static.ARQ_RX_N_CURRENT_ARQ_FRAME - static.ARQ_N_RX_FRAMES_PER_BURSTS + burstnumber
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#logging.debug("frame_number" + str(frame_number))
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logging.debug("static.ARQ_RX_N_CURRENT_ARQ_FRAME" + str(static.ARQ_RX_N_CURRENT_ARQ_FRAME))
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logging.debug("ARQ_N_RX_FRAMES_PER_BURSTS" + str(static.ARQ_N_RX_FRAMES_PER_BURSTS))
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frame_number = burstnumber
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frame_number = frame_number.to_bytes(2, byteorder='big')
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missing_frames += frame_number
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logging.warning("ARQ | TX | RPT ARQ FRAMES [" + str(missing_frames) + "]")
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#BUILDING RPT FRAME FOR BURST -----------------------------------------------
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rpt_payload = missing_frames
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rpt_frame = b'>' + rpt_payload #> = 63
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#TRANSMIT RPT FRAME FOR BURST-----------------------------------------------
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modem.transmit_arq_ack(rpt_frame)
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# ---------------------------- FRAME MACHINE
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# --------------- CHECK IF WE ARE MISSING FRAMES -------------------------------------------
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#for frame in range(1,len(static.ARQ_RX_FRAME_BUFFER)):
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# if static.ARQ_RX_FRAME_BUFFER[frame] == None:
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# print("Missing frames:" + str(frame))
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# --------------- IF LIST NOT CONTAINS "None" stick everything together
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complete_data_frame = bytearray()
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#print("static.ARQ_RX_FRAME_BUFFER.count(None)" + str(static.ARQ_RX_FRAME_BUFFER.count(None)))
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if static.ARQ_RX_FRAME_BUFFER.count(None) == 1: ## 1 because position 0 of list will alaways be None in our case
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#print("DECODING FRAME!")
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for frame in range(1,len(static.ARQ_RX_FRAME_BUFFER)):
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raw_arq_frame = static.ARQ_RX_FRAME_BUFFER[frame]
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arq_frame_payload = raw_arq_frame[8:]
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@ -153,10 +142,9 @@ def data_received(data_in):
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arq_frame_payload = arq_frame_payload[0]
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# --------- AFTER WE SEPARATED BOF AND EOF, STICK EVERYTHING TOGETHER
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# --------- AFTER WE SEPARATED BOF AND EOF, STICK EVERYTHING TOGETHER
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complete_data_frame = complete_data_frame + arq_frame_payload
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#check if Begin of Frame BOF and End of Frame EOF are received, then start calculating CRC and sticking everything together
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if static.ARQ_FRAME_BOF_RECEIVED == True and static.ARQ_FRAME_EOF_RECEIVED == True:
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@ -165,20 +153,20 @@ def data_received(data_in):
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#IF THE FRAME PAYLOAD CRC IS EQUAL TO THE FRAME CRC WHICH IS KNOWN FROM THE HEADER --> SUCCESS
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if frame_payload_crc == static.FRAME_CRC:
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logging.info("ARQ | RX | DATA FRAME SUCESSFULLY RECEIVED! - TIME TO PARTY")
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#logging.info("ARQ | RX | DATA FRAME SUCESSFULLY RECEIVED! - TIME TO PARTY")
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logging.log(25,"ARQ | RX | DATA FRAME SUCESSFULLY RECEIVED! - TIME TO PARTY")
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#append received frame to RX_BUFFER
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static.RX_BUFFER.append(complete_data_frame)
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#BUILDING ACK FRAME FOR DATA FRAME -----------------------------------------------
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ack_frame = b'='+ bytes(static.FRAME_CRC) # < = 61
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ack_buffer = bytearray(static.ARQ_ACK_PAYLOAD_PER_FRAME)
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ack_buffer[:len(ack_frame)] = ack_frame # set buffersize to length of data which will be send
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ack_payload = b'FRAME_ACK'
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ack_frame = b'='+ ack_payload + bytes(static.FRAME_CRC) # < = 61
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#TRANSMIT ACK FRAME FOR BURST-----------------------------------------------
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time.sleep(1) #0.5
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logging.info("ARQ | TX | ARQ DATA FRAME ACK [" + str(static.FRAME_CRC.hex()) +"]")
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modem.transmit_arq_ack(ack_buffer)
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modem.transmit_arq_ack(ack_frame)
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# clearing buffers and resetting counters
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static.ARQ_RX_BURST_BUFFER = []
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@ -188,51 +176,32 @@ def data_received(data_in):
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static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = 0
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#print("----------------------------------------------------------------")
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#print(static.RX_BUFFER[-1])
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#print(static.RX_BUFFER[-1])
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#print("----------------------------------------------------------------")
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else:
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logging.info("ARQ | RX | DATA FRAME NOT SUCESSFULLY RECEIVED!")
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def burst_ack_received():
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logging.debug("ARQ | RX | BURST ACK RCVD!")
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static.ARQ_ACK_TIMEOUT = 1 #Force timer to stop waiting
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static.ARQ_ACK_RECEIVED = 1 #Force data loops of TNC to stop and continue with next frame
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def frame_ack_received():
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logging.debug("ARQ | RX | FRAME ACK RCVD!")
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static.ARQ_ACK_TIMEOUT = 1 #Force timer to stop waiting
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static.ARQ_FRAME_ACK_RECEIVED = 1 #Force data loops of TNC to stop and continue with next frame
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logging.error("ARQ | RX | DATA FRAME NOT SUCESSFULLY RECEIVED!")
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def transmit(data_out):
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static.ARQ_PAYLOAD_PER_FRAME = static.FREEDV_DATA_PAYLOAD_PER_FRAME - 8 #3 ohne ARQ_TX_N_FRAMES_PER_BURST
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frame_header_length = 4
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n_arq_frames_per_data_frame = (len(data_out)+frame_header_length) // static.ARQ_PAYLOAD_PER_FRAME + ((len(data_out)+frame_header_length) % static.ARQ_PAYLOAD_PER_FRAME > 0) # aufrunden 3.2 = 4
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#print(static.FREEDV_DATA_PAYLOAD_PER_FRAME)
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#print(static.ARQ_PAYLOAD_PER_FRAME)
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#print(n_bursts_prediction)
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####static.ARQ_N_ARQ_FRAMES_PER_DATA_FRAME = n_arq_frames_per_data_frame.to_bytes(2, byteorder='big') #65535
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static.ARQ_PAYLOAD_PER_FRAME = static.FREEDV_DATA_PAYLOAD_PER_FRAME - 8
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frame_header_length = 6 #4
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n_arq_frames_per_data_frame = (len(data_out)+frame_header_length) // static.ARQ_PAYLOAD_PER_FRAME + ((len(data_out)+frame_header_length) % static.ARQ_PAYLOAD_PER_FRAME > 0)
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frame_payload_crc = helpers.get_crc_16(data_out)
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#print(frame_payload_crc)
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# This is the total frame with frame header, which will be send
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data_out = frame_payload_crc + static.FRAME_BOF + data_out + static.FRAME_EOF
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# 2 2 N 2
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# --------------------------------------------- LETS CREATE A BUFFER BY SPLITTING THE FILES INTO PEACES
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static.TX_BUFFER = [data_out[i:i+static.ARQ_PAYLOAD_PER_FRAME] for i in range(0, len(data_out), static.ARQ_PAYLOAD_PER_FRAME)]
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static.TX_BUFFER_SIZE = len(static.TX_BUFFER)
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#print(static.TX_BUFFER)
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logging.info("ARQ | TX | DATA FRAME --- BYTES: " + str(len(data_out)) + " ARQ FRAMES: " + str(static.TX_BUFFER_SIZE))
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@ -241,120 +210,213 @@ def transmit(data_out):
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static.ARQ_N_SENT_FRAMES = 0 # SET N SENT FRAMES TO 0 FOR A NEW SENDING CYCLE
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while static.ARQ_N_SENT_FRAMES <= static.TX_BUFFER_SIZE:
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#print("static.ARQ_N_SENT_FRAMES: " + str(static.ARQ_N_SENT_FRAMES))
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static.ARQ_TX_N_FRAMES_PER_BURST = get_n_frames_per_burst()
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# ----------- CREATE FRAME TOTAL PAYLOAD TO BE ABLE TO CREATE CRC FOR IT
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burst_total_payload = bytearray()
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try: # DETECT IF LAST BURST TO PREVENT INDEX ERROR OF BUFFER
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for i in range(static.ARQ_TX_N_FRAMES_PER_BURST): # Loop through TX_BUFFER LIST
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# make sure we have always a filled buffer with the length of payload per frame
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burst_raw_payload = static.TX_BUFFER[static.ARQ_N_SENT_FRAMES + i]
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burst_payload = bytearray(static.ARQ_PAYLOAD_PER_FRAME)
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burst_payload[:len(burst_raw_payload)] = burst_raw_payload # get frame from TX_BUFFER
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burst_total_payload = burst_total_payload + burst_payload # append single frame to total payload buffer
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for i in range(static.ARQ_TX_N_FRAMES_PER_BURST): # Loop through TX_BUFFER LIST
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len(static.TX_BUFFER[static.ARQ_N_SENT_FRAMES + i]) #we calculate the length to trigger a list index error
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except IndexError: # IF LAST BURST DETECTED BUILD CRC WITH LESS FRAMES AND SET static.ARQ_TX_N_FRAMES_PER_BURST TO VALUE OF REST!
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burst_total_payload = bytearray() # reset burst_total_payload because of possible input remaining of detecting loop one step above
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if static.ARQ_N_SENT_FRAMES == 0 and (static.ARQ_TX_N_FRAMES_PER_BURST > static.TX_BUFFER_SIZE): #WE CANT DO MODULO 0 --> CHECK IF FIRST FRAME == LAST FRAME
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static.ARQ_TX_N_FRAMES_PER_BURST = static.TX_BUFFER_SIZE
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elif static.ARQ_N_SENT_FRAMES == 1 and (static.ARQ_TX_N_FRAMES_PER_BURST > static.TX_BUFFER_SIZE): # MODULO 1 WILL ALWAYS BE 0 --> THIS FIXES IT
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static.ARQ_TX_N_FRAMES_PER_BURST = static.TX_BUFFER_SIZE - static.ARQ_N_SENT_FRAMES
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else:
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static.ARQ_TX_N_FRAMES_PER_BURST = (static.TX_BUFFER_SIZE % static.ARQ_N_SENT_FRAMES)
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#print("ARQ_TX_N_FRAMES_PER_BURST OF LAST BURST: " + str(static.ARQ_TX_N_FRAMES_PER_BURST))
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for i in range(static.ARQ_TX_N_FRAMES_PER_BURST): #bytearray(b'111111111111111111111111222222222222222222222222')
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# make sure we have always a filled buffer with the length of payload per frame
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burst_raw_payload = static.TX_BUFFER[static.ARQ_N_SENT_FRAMES + i]
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burst_payload = bytearray(static.ARQ_PAYLOAD_PER_FRAME)
|
||||
burst_payload[:len(burst_raw_payload)] = burst_raw_payload # get frame from TX_BUFFER
|
||||
burst_total_payload = burst_total_payload + burst_payload # append single frame to total payload buffer
|
||||
|
||||
# ----------- GENERATE PAYLOAD CRC FOR ARQ_TX_N_FRAMES_PER_BURST
|
||||
static.ARQ_BURST_PAYLOAD_CRC = helpers.get_crc_16(burst_total_payload)
|
||||
|
||||
#--------------------------------------------- N ATTEMPTS TO SEND BURSTS IF ACK RECEPTION FAILS
|
||||
for static.TX_N_RETRIES in range(static.TX_N_MAX_RETRIES):
|
||||
|
||||
if static.ARQ_N_SENT_FRAMES+1 <= static.TX_BUFFER_SIZE:
|
||||
logging.info("ARQ | TX | B:[" + str(static.ARQ_BURST_PAYLOAD_CRC.hex()) + "] F:[" + str(static.ARQ_N_SENT_FRAMES+1) + "-" + str(static.ARQ_N_SENT_FRAMES + static.ARQ_TX_N_FRAMES_PER_BURST) + "] | T:[" + str(static.ARQ_N_SENT_FRAMES) + "/" + str(static.TX_BUFFER_SIZE) + "] [" + str(int(static.ARQ_N_SENT_FRAMES/(static.TX_BUFFER_SIZE)*100)).zfill(3) + "%] | A:[" + str(static.TX_N_RETRIES+1) + "/" + str(static.TX_N_MAX_RETRIES) + "]")
|
||||
|
||||
|
||||
|
||||
if static.ARQ_N_SENT_FRAMES + 1 <= static.TX_BUFFER_SIZE:
|
||||
logging.log(24, "ARQ | TX | F:[" + str(static.ARQ_N_SENT_FRAMES+1) + "-" + str(static.ARQ_N_SENT_FRAMES + static.ARQ_TX_N_FRAMES_PER_BURST) + "] | T:[" + str(static.ARQ_N_SENT_FRAMES) + "/" + str(static.TX_BUFFER_SIZE) + "] [" + str(int(static.ARQ_N_SENT_FRAMES/(static.TX_BUFFER_SIZE)*100)).zfill(3) + "%] | A:[" + str(static.TX_N_RETRIES+1) + "/" + str(static.TX_N_MAX_RETRIES) + "]")
|
||||
|
||||
|
||||
# lets start a thread to transmit nonblocking
|
||||
TRANSMIT_ARQ_BURST_THREAD = threading.Thread(target=modem.transmit_arq_burst, name="TRANSMIT_ARQ_BURST")
|
||||
TRANSMIT_ARQ_BURST_THREAD.start()
|
||||
|
||||
# lets wait during sending. After sending is finished we will continue
|
||||
while static.ARQ_STATE == 'SENDING_DATA':
|
||||
time.sleep(0.05)
|
||||
|
||||
|
||||
time.sleep(0.01)
|
||||
|
||||
# --------------------------- START TIMER FOR WAITING FOR ACK ---> IF TIMEOUT REACHED, ACK_TIMEOUT = 1
|
||||
#reset timer and ack state
|
||||
static.ARQ_FRAME_ACK_RECEIVED = 0
|
||||
static.ARQ_ACK_RECEIVED = 0
|
||||
static.ARQ_ACK_TIMEOUT = 0
|
||||
|
||||
logging.debug("ARQ | RX | WAITING FOR BURST ACK")
|
||||
static.ARQ_STATE = 'RECEIVING_ACK'
|
||||
|
||||
timer = threading.Timer(static.ARQ_ACK_TIMEOUT_SECONDS, arq_ack_timeout)
|
||||
timer.start()
|
||||
|
||||
static.ARQ_STATE = 'RECEIVING_SIGNALLING'
|
||||
|
||||
helpers.arq_reset_timeout(False)
|
||||
helpers.arq_reset_ack(False)
|
||||
|
||||
acktimer = threading.Timer(static.ARQ_RX_ACK_TIMEOUT_SECONDS, helpers.arq_ack_timeout)
|
||||
acktimer.start()
|
||||
|
||||
logging.debug(".............................")
|
||||
logging.debug("static.ARQ_STATE " + str(static.ARQ_STATE))
|
||||
logging.debug("static.ARQ_FRAME_ACK_RECEIVED " + str(static.ARQ_FRAME_ACK_RECEIVED))
|
||||
logging.debug("static.ARQ_ACK_RECEIVED " + str(static.ARQ_ACK_RECEIVED))
|
||||
logging.debug("static.ARQ_RX_ACK_TIMEOUT " + str(static.ARQ_RX_ACK_TIMEOUT))
|
||||
logging.debug("static.ARQ_RPT_RECEIVED " + str(static.ARQ_RPT_RECEIVED))
|
||||
logging.debug(".............................")
|
||||
|
||||
# --------------------------- WHILE TIMEOUT NOT REACHED AND NO ACK RECEIVED --> LISTEN
|
||||
while static.ARQ_ACK_TIMEOUT == 0 and static.ARQ_ACK_RECEIVED == 0:
|
||||
while static.ARQ_ACK_RECEIVED != True and static.ARQ_RPT_RECEIVED != True and static.ARQ_FRAME_ACK_RECEIVED != True and static.ARQ_RX_FRAME_TIMEOUT != True and static.ARQ_RX_ACK_TIMEOUT != True:
|
||||
time.sleep(0.01) # lets reduce CPU load a little bit
|
||||
#print(static.ARQ_STATE)
|
||||
|
||||
logging.debug(static.ARQ_STATE)
|
||||
|
||||
if static.ARQ_RPT_RECEIVED == True:
|
||||
|
||||
logging.warning("ARQ | RX | REQUEST FOR REPEATING FRAMES: " + str(static.ARQ_RPT_FRAMES))
|
||||
logging.warning("ARQ | TX | SENDING REQUESTED FRAMES: " + str(static.ARQ_RPT_FRAMES))
|
||||
|
||||
TRANSMIT_ARQ_BURST_THREAD = threading.Thread(target=modem.transmit_arq_burst, name="TRANSMIT_ARQ_BURST")
|
||||
TRANSMIT_ARQ_BURST_THREAD.start()
|
||||
|
||||
# lets wait during sending. After sending is finished we will continue
|
||||
while static.ARQ_STATE == 'SENDING_DATA':
|
||||
time.sleep(0.01)
|
||||
|
||||
|
||||
static.ARQ_STATE = 'RECEIVING_SIGNALLING'
|
||||
|
||||
helpers.arq_reset_timeout(False)
|
||||
helpers.arq_reset_ack(False)
|
||||
|
||||
rpttimer = threading.Timer(static.ARQ_RX_RPT_TIMEOUT_SECONDS, helpers.arq_rpt_timeout)
|
||||
rpttimer.start()
|
||||
|
||||
while static.ARQ_ACK_RECEIVED == False and static.ARQ_FRAME_ACK_RECEIVED == False and static.ARQ_RX_RPT_TIMEOUT == False:
|
||||
time.sleep(0.01) # lets reduce CPU load a little bit
|
||||
logging.debug(static.ARQ_STATE)
|
||||
|
||||
if static.ARQ_ACK_RECEIVED == True:
|
||||
|
||||
logging.info("ARQ | RX | ACK AFTER RPT")
|
||||
rpttimer.cancel()
|
||||
helpers.arq_reset_ack(True)
|
||||
static.ARQ_RPT_FRAMES = []
|
||||
|
||||
if static.ARQ_ACK_RECEIVED == 0 and static.ARQ_ACK_TIMEOUT == 1:
|
||||
#logging.info("ARQ | RX | ACK TIMEOUT | SENDING ARQ BURST AGAIN")
|
||||
pass
|
||||
if static.ARQ_RX_RPT_TIMEOUT == True and static.ARQ_ACK_RECEIVED == False:
|
||||
|
||||
logging.error("ARQ | Burst lost....")
|
||||
|
||||
helpers.arq_reset_ack(False)
|
||||
static.ARQ_RPT_FRAMES = []
|
||||
|
||||
#--------------------------------------------------------------------------------------------------------------
|
||||
|
||||
elif static.ARQ_ACK_RECEIVED == 0 and static.ARQ_RX_ACK_TIMEOUT == 1:
|
||||
logging.warning("ARQ | RX | ACK TIMEOUT!")
|
||||
pass #no break here so we can continue with the next try of repeating the burst
|
||||
|
||||
#--------------- BREAK LOOP IF ACK HAS BEEN RECEIVED OR FRAME ACK HAS BEEN RECEIVED
|
||||
if static.ARQ_ACK_RECEIVED == 1:
|
||||
#--------------- BREAK LOOP IF ACK HAS BEEN RECEIVED
|
||||
elif static.ARQ_ACK_RECEIVED == True:
|
||||
logging.info("ARQ | RX | ACK")
|
||||
acktimer.cancel()
|
||||
#-----------IF ACK RECEIVED, INCREMENT ITERATOR FOR MAIN LOOP TO PROCEED WITH NEXT FRAMES/BURST
|
||||
static.ARQ_N_SENT_FRAMES = static.ARQ_N_SENT_FRAMES + static.ARQ_TX_N_FRAMES_PER_BURST
|
||||
break
|
||||
|
||||
#--------------- BREAK LOOP IF FRAME ACK HAS BEEN RECEIVED EARLIER AS EXPECTED
|
||||
if static.ARQ_FRAME_ACK_RECEIVED == 1:
|
||||
logging.info("ARQ | RX | EARLY FRAME ACK RECEIVED - STOPPING TX")
|
||||
elif static.ARQ_FRAME_ACK_RECEIVED == True:
|
||||
logging.info("----------------------------------------------------------")
|
||||
logging.info("ARQ | RX | EARLY FRAME ACK RECEIVED")
|
||||
|
||||
#static.ARQ_N_SENT_FRAMES = #static.TX_BUFFER_SIZE
|
||||
static.ARQ_N_SENT_FRAMES = static.ARQ_N_SENT_FRAMES + static.ARQ_TX_N_FRAMES_PER_BURST
|
||||
break
|
||||
|
||||
|
||||
else:
|
||||
logging.debug("------------------------------->NO RULE MATCHED!")
|
||||
break
|
||||
|
||||
|
||||
#--------------------------------WAITING AREA FOR FRAME ACKs
|
||||
|
||||
logging.debug("static.ARQ_N_SENT_FRAMES " + str(static.ARQ_N_SENT_FRAMES))
|
||||
logging.debug("static.TX_BUFFER_SIZE " + str(static.TX_BUFFER_SIZE))
|
||||
logging.debug("static.TX_N_RETRIES " + str(static.TX_N_RETRIES))
|
||||
logging.debug("static.TX_N_MAX_RETRIES " + str(static.TX_N_MAX_RETRIES))
|
||||
logging.debug("static.ARQ_STATE " + str(static.ARQ_STATE))
|
||||
logging.debug("static.ARQ_FRAME_ACK_RECEIVED " + str(static.ARQ_FRAME_ACK_RECEIVED))
|
||||
logging.debug("static.ARQ_RX_FRAME_TIMEOUT " + str(static.ARQ_RX_FRAME_TIMEOUT))
|
||||
logging.debug("static.ARQ_ACK_RECEIVED " + str(static.ARQ_ACK_RECEIVED))
|
||||
logging.debug("static.ARQ_RX_ACK_TIMEOUT " + str(static.ARQ_RX_ACK_TIMEOUT))
|
||||
logging.debug("static.ARQ_RPT_RECEIVED " + str(static.ARQ_RPT_RECEIVED))
|
||||
logging.debug("static.ARQ_TX_N_FRAMES_PER_BURST " + str(static.ARQ_TX_N_FRAMES_PER_BURST))
|
||||
|
||||
frametimer = threading.Timer(static.ARQ_RX_FRAME_TIMEOUT_SECONDS, helpers.arq_frame_timeout)
|
||||
frametimer.start()
|
||||
static.ARQ_STATE = 'RECEIVING_SIGNALLING'
|
||||
|
||||
# wait for frame ACK if we processed the last frame/burst
|
||||
while static.ARQ_FRAME_ACK_RECEIVED == False and static.ARQ_RX_FRAME_TIMEOUT == False and static.ARQ_N_SENT_FRAMES == static.TX_BUFFER_SIZE:
|
||||
time.sleep(0.01) # lets reduce CPU load a little bit
|
||||
#print(static.ARQ_STATE)
|
||||
logging.debug("WAITING FOR FRAME ACK")
|
||||
|
||||
|
||||
# ----------- if no ACK received and out of retries.....stop frame sending
|
||||
if static.ARQ_ACK_RECEIVED == 0 and static.ARQ_FRAME_ACK_RECEIVED == 0 and static.ARQ_ACK_TIMEOUT == 1:
|
||||
logging.info("ARQ | TX | NO BURST OR FRAME ACK RECEIVED | DATA SHOULD BE RESEND!")
|
||||
print(bytes(static.TX_BUFFER[static.ARQ_N_SENT_FRAMES]))
|
||||
break
|
||||
if static.ARQ_ACK_RECEIVED == False and static.ARQ_FRAME_ACK_RECEIVED == False and static.ARQ_RX_ACK_TIMEOUT == True:
|
||||
logging.error("ARQ | TX | NO BURST OR FRAME ACK RECEIVED | DATA SHOULD BE RESEND!")
|
||||
break
|
||||
|
||||
#-------------------------BREAK TX BUFFER LOOP IF ALL PACKETS HAVE BEEN SENT AND WE GOT A FRAME ACK
|
||||
if static.ARQ_N_SENT_FRAMES == static.TX_BUFFER_SIZE and static.ARQ_FRAME_ACK_RECEIVED == 1:
|
||||
logging.info("ARQ | RX | REGULAR FRAME ACK RECEIVED - DATA TRANSMITTED!")
|
||||
elif static.ARQ_N_SENT_FRAMES == static.TX_BUFFER_SIZE and static.ARQ_FRAME_ACK_RECEIVED == True:
|
||||
logging.log(25,"ARQ | RX | FRAME ACK RECEIVED - DATA TRANSMITTED! :-)")
|
||||
break
|
||||
|
||||
else:
|
||||
logging.debug("NO MATCHING RULE AT THE END")
|
||||
|
||||
# stop all timers
|
||||
try:
|
||||
frametimer.cancel()
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
try:
|
||||
acktimer.cancel()
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
|
||||
# IF TX BUFFER IS EMPTY / ALL FRAMES HAVE BEEN SENT --> HERE WE COULD ADD AN static.VAR for IDLE STATE
|
||||
|
||||
logging.info("ARQ | TX | BUFFER EMPTY")
|
||||
# - RESET COUNTERS
|
||||
static.ARQ_N_SENT_FRAMES = 0
|
||||
static.ARQ_TX_N_FRAMES_PER_BURST = 0
|
||||
static.ARQ_ACK_RECEIVED = 0
|
||||
static.ARQ_FRAME_ACK_RECEIVED = 0
|
||||
|
||||
helpers.arq_reset_frame_machine()
|
||||
|
||||
|
||||
|
||||
# BURST MACHINE TO DEFINE N BURSTS PER FRAME ---> LATER WE CAN USE CHANNEL MESSUREMENT TO SET FRAMES PER BURST
|
||||
def get_n_frames_per_burst():
|
||||
|
||||
n_frames_per_burst = randrange(1,10)
|
||||
#n_frames_per_burst = 1
|
||||
#n_frames_per_burst = randrange(1,10)
|
||||
n_frames_per_burst = 2
|
||||
return n_frames_per_burst
|
||||
|
||||
|
||||
|
||||
def burst_ack_received():
|
||||
static.ARQ_ACK_RECEIVED = True #Force data loops of TNC to stop and continue with next frame
|
||||
|
||||
|
||||
|
||||
def frame_ack_received():
|
||||
static.ARQ_FRAME_ACK_RECEIVED = True #Force data loops of TNC to stop and continue with next frame
|
||||
|
||||
|
||||
|
||||
def burst_rpt_received(data_in):
|
||||
static.ARQ_RPT_RECEIVED = True
|
||||
static.ARQ_RPT_FRAMES = []
|
||||
|
||||
missing_area = bytes(data_in[1:9])
|
||||
|
||||
for i in range(0,6,2):
|
||||
if not missing_area[i:i+2].endswith(b'\x00\x00'):
|
||||
missing = missing_area[i:i+2]
|
||||
static.ARQ_RPT_FRAMES.insert(0,missing)
|
||||
|
||||
|
|
|
|||
74
helpers.py
74
helpers.py
|
|
@ -10,11 +10,13 @@ import time
|
|||
import threading
|
||||
import logging
|
||||
import crcengine
|
||||
|
||||
import pyaudio
|
||||
|
||||
import static
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
def get_crc_8(data):
|
||||
crc_algorithm = crcengine.new('crc8-ccitt') #load crc8 library
|
||||
|
|
@ -26,4 +28,70 @@ def get_crc_16(data):
|
|||
crc_algorithm = crcengine.new('crc16-ccitt-false') #load crc16 library
|
||||
crc_data = crc_algorithm(data)
|
||||
crc_data = crc_data.to_bytes(2, byteorder='big')
|
||||
return crc_data
|
||||
return crc_data
|
||||
|
||||
def arq_ack_timeout():
|
||||
if static.ARQ_STATE == 'RECEIVING_SIGNALLING':
|
||||
static.ARQ_RX_ACK_TIMEOUT = True
|
||||
logging.debug("ARQ_RX_ACK_TIMEOUT")
|
||||
|
||||
def arq_rpt_timeout():
|
||||
if static.ARQ_STATE == 'RECEIVING_SIGNALLING':
|
||||
static.ARQ_RX_RPT_TIMEOUT = True
|
||||
logging.debug("ARQ_RX_RPT_TIMEOUT")
|
||||
|
||||
def arq_frame_timeout():
|
||||
if static.ARQ_STATE == 'RECEIVING_SIGNALLING':
|
||||
static.ARQ_RX_FRAME_TIMEOUT = True
|
||||
logging.debug("ARQ_RX_FRAME_TIMEOUT")
|
||||
|
||||
def arq_reset_timeout(state):
|
||||
static.ARQ_RX_ACK_TIMEOUT = state
|
||||
static.ARQ_RX_FRAME_TIMEOUT = state
|
||||
static.ARQ_RX_RPT_TIMEOUT = state
|
||||
|
||||
def arq_reset_ack(state):
|
||||
static.ARQ_ACK_RECEIVED = state
|
||||
static.ARQ_RPT_RECEIVED = state
|
||||
static.ARQ_FRAME_ACK_RECEIVED = state
|
||||
|
||||
def arq_reset_frame_machine():
|
||||
arq_reset_timeout(False)
|
||||
arq_reset_ack(False)
|
||||
static.TX_N_RETRIES = 0
|
||||
static.ARQ_N_SENT_FRAMES = 0
|
||||
static.ARQ_TX_N_FRAMES_PER_BURST = 0
|
||||
|
||||
|
||||
def setup_logging():
|
||||
|
||||
logging.basicConfig(format='%(asctime)s.%(msecs)03d %(levelname)s:\t%(message)s', datefmt='%H:%M:%S', level=logging.INFO)
|
||||
|
||||
logging.addLevelName( logging.DEBUG, "\033[1;36m%s\033[1;0m" % logging.getLevelName(logging.DEBUG))
|
||||
logging.addLevelName( logging.INFO, "\033[1;37m%s\033[1;0m" % logging.getLevelName(logging.INFO))
|
||||
logging.addLevelName( logging.WARNING, "\033[1;33m%s\033[1;0m" % logging.getLevelName(logging.WARNING))
|
||||
logging.addLevelName( logging.ERROR, "\033[1;31m%s\033[1;0m" % "FAILED")
|
||||
#logging.addLevelName( logging.ERROR, "\033[1;31m%s\033[1;0m" % logging.getLevelName(logging.ERROR))
|
||||
logging.addLevelName( logging.CRITICAL, "\033[1;41m%s\033[1;0m" % logging.getLevelName(logging.CRITICAL))
|
||||
|
||||
logging.addLevelName( 25, "\033[1;32m%s\033[1;0m" % "SUCCESS")
|
||||
logging.addLevelName( 24, "\033[1;34m%s\033[1;0m" % "DATA")
|
||||
|
||||
|
||||
# https://stackoverflow.com/questions/384076/how-can-i-color-python-logging-output
|
||||
#'DEBUG' : 37, # white
|
||||
#'INFO' : 36, # cyan
|
||||
#'WARNING' : 33, # yellow
|
||||
#'ERROR' : 31, # red
|
||||
#'CRITICAL': 41, # white on red bg
|
||||
|
||||
|
||||
|
||||
def list_audio_devices():
|
||||
p = pyaudio.PyAudio()
|
||||
devices = []
|
||||
for x in range(0, p.get_device_count()):
|
||||
devices.append(f"{x} - {p.get_device_info_by_index(x)['name']}")
|
||||
|
||||
for line in devices:
|
||||
print(line)
|
||||
|
|
|
|||
64
main.py
64
main.py
|
|
@ -10,43 +10,59 @@ Created on Tue Dec 22 16:58:45 2020
|
|||
import socketserver
|
||||
import argparse
|
||||
import logging
|
||||
import threading
|
||||
|
||||
#import tnc
|
||||
import static
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
import helpers
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
|
||||
# config logging
|
||||
helpers.setup_logging()
|
||||
|
||||
# list audio devices
|
||||
helpers.list_audio_devices()
|
||||
|
||||
|
||||
|
||||
static.MYCALLSIGN = b'DJ2LS'
|
||||
static.MYCALLSIGN_CRC8 = helpers.get_crc_8(static.MYCALLSIGN)
|
||||
|
||||
static.DXCALLSIGN = b'DH3WO'
|
||||
static.DXCALLSIGN_CRC8 = helpers.get_crc_8(static.DXCALLSIGN)
|
||||
|
||||
print("MYCALLSIGN " + str(static.MYCALLSIGN))
|
||||
print("MYCALLSIGN_CRC8 " + str(static.MYCALLSIGN_CRC8))
|
||||
|
||||
print("DXCALLSIGN " + str(static.DXCALLSIGN))
|
||||
print("DXCALLSIGN_CRC8 " + str(static.DXCALLSIGN_CRC8))
|
||||
|
||||
|
||||
|
||||
#--------------------------------------------GET PARAMETER INPUTS
|
||||
parser = argparse.ArgumentParser(description='Simons TEST TNC')
|
||||
parser.add_argument('--rx', dest="audio_input_device", default=0, help="sound card for listening.", type=int)
|
||||
parser.add_argument('--tx', dest="audio_output_device", default=0, help="sound card for transmitting.", type=int)
|
||||
parser.add_argument('--port', dest="socket_port", default=3000, help="Set the port, the socket is listening on.", type=int)
|
||||
|
||||
parser.add_argument('--mode', dest="freedv_data_mode", default=12, help="Set the mode.", type=int)
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
|
||||
|
||||
#--------------------------------------------START CMD & DATA SERVER
|
||||
static.FREEDV_DATA_MODE = args.freedv_data_mode
|
||||
static.AUDIO_INPUT_DEVICE = args.audio_input_device
|
||||
static.AUDIO_OUTPUT_DEVICE = args.audio_output_device
|
||||
static.PORT = args.socket_port
|
||||
|
||||
import tnc # we need to wait until we got all parameters from argparse
|
||||
import sock # we need to wait until we got all parameters from argparse
|
||||
|
||||
cmd_server_thread = threading.Thread(target=sock.start_cmd_socket, name="cmd server")
|
||||
cmd_server_thread.start()
|
||||
|
||||
data_server_thread = threading.Thread(target=sock.start_data_socket, name="data server")
|
||||
data_server_thread.start()
|
||||
|
||||
|
||||
|
||||
#-------------------------------------------- DEFINE LOGGER
|
||||
logger = logging.getLogger()
|
||||
logger.setLevel("INFO") #DEBUG>INFO>WARNING>ERROR>CRITICAL
|
||||
|
||||
|
||||
|
||||
|
||||
#--------------------------------------------START SERVER
|
||||
logging.info("STARTING TCP/IP SOCKET ON PORT " + str(static.PORT))
|
||||
try:
|
||||
socketserver.TCPServer.allow_reuse_address = True #https://stackoverflow.com/a/16641793
|
||||
server = socketserver.TCPServer((static.HOST, static.PORT), tnc.TCPRequestHandler)
|
||||
server.serve_forever()
|
||||
finally:
|
||||
server.server_close()
|
||||
|
|
|
|||
263
modem.py
263
modem.py
|
|
@ -10,7 +10,8 @@ import ctypes
|
|||
from ctypes import *
|
||||
import pathlib
|
||||
import pyaudio
|
||||
import sys
|
||||
import audioop
|
||||
#import sys
|
||||
import logging
|
||||
import time
|
||||
import threading
|
||||
|
|
@ -19,6 +20,13 @@ import helpers
|
|||
import static
|
||||
import arq
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
class RF():
|
||||
|
||||
def __init__(self):
|
||||
|
|
@ -51,53 +59,10 @@ class RF():
|
|||
#--------------------------------------------START DECODER THREAD
|
||||
FREEDV_DECODER_THREAD = threading.Thread(target=self.receive, args=[static.FREEDV_DATA_MODE,static.FREEDV_SIGNALLING_MODE], name="FREEDV_DECODER_THREAD")
|
||||
FREEDV_DECODER_THREAD.start()
|
||||
#--------------------------------------------------------------------------------------------------------
|
||||
# GET DATA AND MODULATE IT
|
||||
|
||||
def transmit(self,mode,data_out):
|
||||
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
freedv = self.c_lib.freedv_open(mode)
|
||||
bytes_per_frame = int(self.c_lib.freedv_get_bits_per_modem_frame(freedv)/8)
|
||||
payload_per_frame = bytes_per_frame -2
|
||||
n_nom_modem_samples = self.c_lib.freedv_get_n_nom_modem_samples(freedv)
|
||||
n_tx_modem_samples = self.c_lib.freedv_get_n_tx_modem_samples(freedv)*2 #get n_tx_modem_samples which defines the size of the modulation object
|
||||
|
||||
mod_out = ctypes.c_short * n_tx_modem_samples
|
||||
mod_out = mod_out()
|
||||
mod_out_preamble = ctypes.c_short * n_tx_modem_samples #1760 for mode 10,11,12 #4000 for mode 9
|
||||
mod_out_preamble = mod_out_preamble()
|
||||
|
||||
data_list = [data_out[i:i+payload_per_frame] for i in range(0, len(data_out), payload_per_frame)] # split incomming bytes to size of 30bytes, create a list and loop through it
|
||||
data_list_length = len(data_list)
|
||||
for i in range(data_list_length): # LOOP THROUGH DATA LIST
|
||||
|
||||
buffer = bytearray(payload_per_frame) # use this if CRC16 checksum is required ( DATA1-3)
|
||||
buffer[:len(data_list[i])] = data_list[i] # set buffersize to length of data which will be send
|
||||
|
||||
crc = ctypes.c_ushort(self.c_lib.freedv_gen_crc16(bytes(buffer), payload_per_frame)) # generate CRC16
|
||||
crc = crc.value.to_bytes(2, byteorder='big') # convert crc to 2 byte hex string
|
||||
buffer += crc # append crc16 to buffer
|
||||
|
||||
data = (ctypes.c_ubyte * bytes_per_frame).from_buffer_copy(buffer)
|
||||
self.c_lib.freedv_rawdatapreambletx(freedv, mod_out_preamble)
|
||||
self.c_lib.freedv_rawdatatx(freedv,mod_out,data) # modulate DATA and safe it into mod_out pointer
|
||||
|
||||
# -------------- preamble area
|
||||
# WE NEED TO ADJUST IT FOR SINGLE TRANSMISSION
|
||||
|
||||
txbuffer = bytearray()
|
||||
txbuffer += bytes(mod_out_preamble)
|
||||
txbuffer += bytes(mod_out)
|
||||
txbuffer = txbuffer.rstrip(b'\x00')
|
||||
|
||||
|
||||
# -------------- transmit audio
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
|
||||
#--------------------------------------------------------------------------------------------------------
|
||||
def transmit_arq_ack(self,ack_buffer):
|
||||
|
||||
#print(ack_buffer)
|
||||
static.ARQ_STATE = 'SENDING_ACK'
|
||||
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
|
|
@ -118,7 +83,6 @@ class RF():
|
|||
crc = ctypes.c_ushort(self.c_lib.freedv_gen_crc16(bytes(buffer), payload_per_frame)) # generate CRC16
|
||||
crc = crc.value.to_bytes(2, byteorder='big') # convert crc to 2 byte hex string
|
||||
buffer += crc # append crc16 to buffer
|
||||
#print(bytes(buffer))
|
||||
data = (ctypes.c_ubyte * bytes_per_frame).from_buffer_copy(buffer)
|
||||
|
||||
preamble_bytes = self.c_lib.freedv_rawdatapreambletx(freedv, mod_out_preamble)
|
||||
|
|
@ -128,16 +92,20 @@ class RF():
|
|||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
txbuffer += bytes(mod_out)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
# -------------- transmit audio
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
|
||||
# -------------- transmit audio twice
|
||||
|
||||
logging.debug("SEND SIGNALLING FRAME " + str(ack_buffer))
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
|
||||
static.ARQ_STATE = 'RECEIVING_DATA'
|
||||
#--------------------------------------------------------------------------------------------------------
|
||||
# GET ARQ BURST FRAME VOM BUFFER AND MODULATE IT
|
||||
def transmit_arq_burst(self):
|
||||
|
||||
static.ARQ_STATE = 'SENDING_DATA'
|
||||
|
||||
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
freedv = self.c_lib.freedv_open(static.FREEDV_DATA_MODE)
|
||||
static.FREEDV_DATA_BYTES_PER_FRAME = int(self.c_lib.freedv_get_bits_per_modem_frame(freedv)/8)
|
||||
|
|
@ -156,58 +124,94 @@ class RF():
|
|||
txbuffer += bytes(mod_out_preamble)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
|
||||
for n in range(0,static.ARQ_TX_N_FRAMES_PER_BURST):
|
||||
if static.ARQ_RPT_RECEIVED == False:
|
||||
for n in range(0,static.ARQ_TX_N_FRAMES_PER_BURST):
|
||||
|
||||
#---------------------------BUILD ARQ BURST ---------------------------------------------------------------------
|
||||
frame_type = 10 + n + 1 #static.ARQ_TX_N_FRAMES_PER_BURST
|
||||
frame_type = bytes([frame_type])
|
||||
frame_type = 10 + n + 1 #static.ARQ_TX_N_FRAMES_PER_BURST
|
||||
frame_type = bytes([frame_type])
|
||||
|
||||
payload_data = bytes(static.TX_BUFFER[static.ARQ_N_SENT_FRAMES + n])
|
||||
|
||||
payload_data = bytes(static.TX_BUFFER[static.ARQ_N_SENT_FRAMES + n])
|
||||
n_current_arq_frame = static.ARQ_N_SENT_FRAMES + n + 1
|
||||
static.ARQ_TX_N_CURRENT_ARQ_FRAME = n_current_arq_frame.to_bytes(2, byteorder='big')
|
||||
|
||||
n_current_arq_frame = static.ARQ_N_SENT_FRAMES + n + 1
|
||||
static.ARQ_TX_N_CURRENT_ARQ_FRAME = n_current_arq_frame.to_bytes(2, byteorder='big')
|
||||
|
||||
n_total_arq_frame = len(static.TX_BUFFER)
|
||||
static.ARQ_TX_N_TOTAL_ARQ_FRAMES = n_total_arq_frame.to_bytes(2, byteorder='big')
|
||||
|
||||
|
||||
|
||||
# 1 # frame type and current number of arq frame of burst
|
||||
# 1 # total number of arq frames per (current) burst
|
||||
# 2 # current arq frame number
|
||||
# 2 # total number arq frames
|
||||
# 2 # arq crc
|
||||
# N # payload data
|
||||
n_total_arq_frame = len(static.TX_BUFFER)
|
||||
static.ARQ_TX_N_TOTAL_ARQ_FRAMES = n_total_arq_frame.to_bytes(2, byteorder='big')
|
||||
|
||||
arqframe = frame_type + \
|
||||
arqframe = frame_type + \
|
||||
bytes([static.ARQ_TX_N_FRAMES_PER_BURST]) + \
|
||||
static.ARQ_TX_N_CURRENT_ARQ_FRAME + \
|
||||
static.ARQ_TX_N_TOTAL_ARQ_FRAMES + \
|
||||
static.ARQ_BURST_PAYLOAD_CRC + \
|
||||
static.DXCALLSIGN_CRC8 + \
|
||||
static.MYCALLSIGN_CRC8 + \
|
||||
payload_data
|
||||
|
||||
#print(arqframe)
|
||||
#print(arqframe)
|
||||
|
||||
buffer = bytearray(static.FREEDV_DATA_PAYLOAD_PER_FRAME) # create TX buffer
|
||||
buffer[:len(arqframe)] = arqframe # set buffersize to length of data which will be send
|
||||
buffer = bytearray(static.FREEDV_DATA_PAYLOAD_PER_FRAME) # create TX buffer
|
||||
buffer[:len(arqframe)] = arqframe # set buffersize to length of data which will be send
|
||||
|
||||
crc = ctypes.c_ushort(self.c_lib.freedv_gen_crc16(bytes(buffer), static.FREEDV_DATA_PAYLOAD_PER_FRAME)) # generate CRC16
|
||||
crc = crc.value.to_bytes(2, byteorder='big') # convert crc to 2 byte hex string
|
||||
buffer += crc # append crc16 to buffer
|
||||
crc = ctypes.c_ushort(self.c_lib.freedv_gen_crc16(bytes(buffer), static.FREEDV_DATA_PAYLOAD_PER_FRAME)) # generate CRC16
|
||||
crc = crc.value.to_bytes(2, byteorder='big') # convert crc to 2 byte hex string
|
||||
buffer += crc # append crc16 to buffer
|
||||
|
||||
data = (ctypes.c_ubyte * static.FREEDV_DATA_BYTES_PER_FRAME).from_buffer_copy(buffer)
|
||||
self.c_lib.freedv_rawdatatx(freedv,mod_out,data) # modulate DATA and safe it into mod_out pointer
|
||||
txbuffer += bytes(mod_out)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
data = (ctypes.c_ubyte * static.FREEDV_DATA_BYTES_PER_FRAME).from_buffer_copy(buffer)
|
||||
self.c_lib.freedv_rawdatatx(freedv,mod_out,data) # modulate DATA and safe it into mod_out pointer
|
||||
txbuffer += bytes(mod_out)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
|
||||
# -------------- transmit audio
|
||||
elif static.ARQ_RPT_RECEIVED == True:
|
||||
|
||||
for n in range(0,len(static.ARQ_RPT_FRAMES)):
|
||||
|
||||
missing_frame = int.from_bytes(static.ARQ_RPT_FRAMES[n], "big")
|
||||
|
||||
#---------------------------BUILD ARQ BURST ---------------------------------------------------------------------
|
||||
frame_type = 10 + missing_frame #static.ARQ_TX_N_FRAMES_PER_BURST
|
||||
frame_type = bytes([frame_type])
|
||||
|
||||
payload_data = bytes(static.TX_BUFFER[static.ARQ_N_SENT_FRAMES + missing_frame - 1])
|
||||
|
||||
n_current_arq_frame = static.ARQ_N_SENT_FRAMES + missing_frame
|
||||
static.ARQ_TX_N_CURRENT_ARQ_FRAME = n_current_arq_frame.to_bytes(2, byteorder='big')
|
||||
|
||||
n_total_arq_frame = len(static.TX_BUFFER)
|
||||
static.ARQ_TX_N_TOTAL_ARQ_FRAMES = n_total_arq_frame.to_bytes(2, byteorder='big')
|
||||
|
||||
arqframe = frame_type + \
|
||||
bytes([static.ARQ_TX_N_FRAMES_PER_BURST]) + \
|
||||
static.ARQ_TX_N_CURRENT_ARQ_FRAME + \
|
||||
static.ARQ_TX_N_TOTAL_ARQ_FRAMES + \
|
||||
static.DXCALLSIGN_CRC8 + \
|
||||
static.MYCALLSIGN_CRC8 + \
|
||||
payload_data
|
||||
|
||||
#print(arqframe)
|
||||
|
||||
buffer = bytearray(static.FREEDV_DATA_PAYLOAD_PER_FRAME) # create TX buffer
|
||||
buffer[:len(arqframe)] = arqframe # set buffersize to length of data which will be send
|
||||
|
||||
crc = ctypes.c_ushort(self.c_lib.freedv_gen_crc16(bytes(buffer), static.FREEDV_DATA_PAYLOAD_PER_FRAME)) # generate CRC16
|
||||
crc = crc.value.to_bytes(2, byteorder='big') # convert crc to 2 byte hex string
|
||||
buffer += crc # append crc16 to buffer
|
||||
|
||||
data = (ctypes.c_ubyte * static.FREEDV_DATA_BYTES_PER_FRAME).from_buffer_copy(buffer)
|
||||
self.c_lib.freedv_rawdatatx(freedv,mod_out,data) # modulate DATA and safe it into mod_out pointer
|
||||
txbuffer += bytes(mod_out)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
|
||||
|
||||
# -------------- transmit audio
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
|
||||
static.ARQ_STATE = 'RECEIVING_ACK'
|
||||
#time.sleep(0.5)
|
||||
static.ARQ_STATE = 'IDLE'
|
||||
#static.ARQ_STATE = 'RECEIVING_SIGNALLING'
|
||||
|
||||
#--------------------------------------------------------------------------------------------------------
|
||||
def receive(self,data_mode,signalling_mode):
|
||||
|
||||
force = False
|
||||
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
|
||||
freedv_data = self.c_lib.freedv_open(data_mode)
|
||||
|
|
@ -232,24 +236,22 @@ class RF():
|
|||
stuck_in_sync_counter = 0
|
||||
stuck_in_sync_10_counter = 0
|
||||
#
|
||||
|
||||
|
||||
|
||||
|
||||
while static.ARQ_STATE == 'RECEIVING_DATA':
|
||||
time.sleep(0.01)
|
||||
|
||||
nin = self.c_lib.freedv_nin(freedv_data)
|
||||
nin = int(nin*(static.AUDIO_SAMPLE_RATE_RX/static.MODEM_SAMPLE_RATE))
|
||||
#nin = int(nin*(static.AUDIO_SAMPLE_RATE_RX/static.MODEM_SAMPLE_RATE))
|
||||
|
||||
data_in = self.stream_rx.read(nin, exception_on_overflow = False)
|
||||
#print(audioop.rms(data_in, 2))
|
||||
data_in = data_in.rstrip(b'\x00')
|
||||
|
||||
#print(data_in)
|
||||
|
||||
self.c_lib.freedv_rawdatarx.argtype = [ctypes.POINTER(ctypes.c_ubyte), data_bytes_out, data_in] # check if really neccessary
|
||||
#self.c_lib.freedv_rawdatarx.argtype = [ctypes.POINTER(ctypes.c_ubyte), data_bytes_out, data_in] # check if really neccessary
|
||||
nbytes = self.c_lib.freedv_rawdatarx(freedv_data, data_bytes_out, data_in) # demodulate audio
|
||||
#print(self.c_lib.freedv_get_rx_status(freedv_data))
|
||||
|
||||
logging.debug(self.c_lib.freedv_get_rx_status(freedv_data))
|
||||
|
||||
#-------------STUCK IN SYNC DETECTOR
|
||||
stuck_in_sync_counter += 1
|
||||
|
|
@ -257,9 +259,8 @@ class RF():
|
|||
stuck_in_sync_10_counter += 1
|
||||
|
||||
|
||||
#print(stuck_in_sync_counter)
|
||||
if stuck_in_sync_counter == 33 and self.c_lib.freedv_get_rx_status(freedv_data) == 10:
|
||||
print("stuck in sync #1 --> DOING UNSYNC")
|
||||
logging.critical("stuck in sync #1")
|
||||
self.c_lib.freedv_set_sync(freedv_data, 0) #FORCE UNSYNC
|
||||
stuck_in_sync_counter = 0
|
||||
stuck_in_sync_10_counter = 0
|
||||
|
|
@ -267,22 +268,16 @@ class RF():
|
|||
|
||||
|
||||
if stuck_in_sync_counter >= 66 and stuck_in_sync_10_counter >= 2:
|
||||
print("stuck in sync #2 --> DOING UNSYNC")
|
||||
logging.critical("stuck in sync #2")
|
||||
self.c_lib.freedv_set_sync(freedv_data, 0) #FORCE UNSYNC
|
||||
stuck_in_sync_counter = 0
|
||||
stuck_in_sync_10_counter = 0
|
||||
data_in = None
|
||||
#-----------------------------------
|
||||
|
||||
|
||||
#modem_stats_snr = c_float()
|
||||
#modem_stats_sync = c_int()
|
||||
|
||||
#self.c_lib.freedv_get_modem_stats(freedv_data,byref(modem_stats_sync), byref(modem_stats_snr))
|
||||
#modem_stats_snr = modem_stats_snr.value
|
||||
#print(modem_stats_snr)
|
||||
|
||||
|
||||
if nbytes == static.FREEDV_DATA_BYTES_PER_FRAME:
|
||||
|
||||
# counter reset for stuck in sync counter
|
||||
stuck_in_sync_counter = 0
|
||||
stuck_in_sync_10_counter = 0
|
||||
|
|
@ -292,45 +287,69 @@ class RF():
|
|||
frametype = int.from_bytes(bytes(data_bytes_out[:1]), "big")
|
||||
frame = frametype - 10
|
||||
n_frames_per_burst = int.from_bytes(bytes(data_bytes_out[1:2]), "big")
|
||||
if 50 >= frametype >= 10 and len(data_bytes_out) > 30: # --> The length check filters out random strings without CRC
|
||||
arq.data_received(bytes(data_bytes_out[:-2])) #send payload data to arq checker without CRC16
|
||||
|
||||
if 50 >= frametype >= 10:
|
||||
if frame != 3 or force == True:
|
||||
arq.data_received(bytes(data_bytes_out[:-2])) #send payload data to arq checker without CRC16
|
||||
|
||||
#print("static.ARQ_RX_BURST_BUFFER.count(None) " + str(static.ARQ_RX_BURST_BUFFER.count(None)))
|
||||
if static.ARQ_RX_BURST_BUFFER.count(None) <= 1:
|
||||
logging.debug("FULL BURST BUFFER ---> UNSYNC")
|
||||
self.c_lib.freedv_set_sync(freedv_data, 0)
|
||||
|
||||
else:
|
||||
logging.critical("---------------------------SIMULATED MISSING FRAME")
|
||||
force = True
|
||||
else:
|
||||
print("MODE: " + str(data_mode) + " DATA: " + str(bytes(data_bytes_out)))
|
||||
logging.info("MODE: " + str(data_mode) + " DATA: " + str(bytes(data_bytes_out)))
|
||||
|
||||
# NEEDS TO BE OPTIMIZED
|
||||
# DO UNSYNC AFTER LAST BURST by checking the frame numbers agains the total frames per burst
|
||||
|
||||
# DO UNSYNC AFTER LAST BURST by checking the frame numbers agains the total frames per burst
|
||||
if frame == n_frames_per_burst:
|
||||
logging.debug("LAST FRAME ---> UNSYNC")
|
||||
self.c_lib.freedv_set_sync(freedv_data, 0) #FORCE UNSYNC
|
||||
|
||||
# DETECT STUCK IN SYNC
|
||||
# count rx status 10
|
||||
# if 10 greater 2 after 6 then unsync
|
||||
|
||||
|
||||
while static.ARQ_STATE == 'IDLE' or static.ARQ_STATE == 'RECEIVING_ACK':
|
||||
|
||||
while static.ARQ_STATE == 'IDLE' or static.ARQ_STATE == 'RECEIVING_SIGNALLING':
|
||||
time.sleep(0.01)
|
||||
|
||||
nin = self.c_lib.freedv_nin(freedv_signalling)
|
||||
nin = int(nin*(static.AUDIO_SAMPLE_RATE_RX/static.MODEM_SAMPLE_RATE))
|
||||
#nin = int(nin*(static.AUDIO_SAMPLE_RATE_RX/static.MODEM_SAMPLE_RATE))
|
||||
|
||||
data_in = self.stream_rx.read(nin, exception_on_overflow = False)
|
||||
data_in = data_in.rstrip(b'\x00')
|
||||
|
||||
self.c_lib.freedv_rawdatarx.argtype = [ctypes.POINTER(ctypes.c_ubyte), signalling_bytes_out, data_in] # check if really neccessary
|
||||
#self.c_lib.freedv_rawdatarx.argtype = [ctypes.POINTER(ctypes.c_ubyte), signalling_bytes_out, data_in] # check if really neccessary
|
||||
nbytes = self.c_lib.freedv_rawdatarx(freedv_signalling, signalling_bytes_out, data_in) # demodulate audio
|
||||
|
||||
# CHECK IF FRAME CONTAINS ACK------------------------
|
||||
frametype = int.from_bytes(bytes(signalling_bytes_out[:1]), "big")
|
||||
|
||||
# BURST ACK
|
||||
if frametype == 60 and nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME:
|
||||
if nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME:
|
||||
self.c_lib.freedv_set_sync(freedv_signalling, 0)
|
||||
frametype = int.from_bytes(bytes(signalling_bytes_out[:1]), "big")
|
||||
|
||||
# BURST ACK
|
||||
if frametype == 60:
|
||||
logging.debug("ACK RECEIVED....")
|
||||
arq.burst_ack_received()
|
||||
# FRAME ACK
|
||||
if frametype == 61 and nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME:
|
||||
|
||||
# FRAME ACK
|
||||
elif frametype == 61:
|
||||
logging.debug("FRAME ACK RECEIVED....")
|
||||
arq.frame_ack_received()
|
||||
|
||||
|
||||
|
||||
# FRAME RPT
|
||||
elif frametype == 62:
|
||||
logging.debug("REPEAT REQUEST RECEIVED....")
|
||||
arq.burst_rpt_received(signalling_bytes_out[:-2])
|
||||
|
||||
else:
|
||||
logging.debug("OTHER FRAME: " + str(signalling_bytes_out[:-2]))
|
||||
|
||||
|
||||
rxstatus = self.c_lib.freedv_get_rx_status(freedv_signalling)
|
||||
#print(rxstatus)
|
||||
logging.debug("ACK-" + str(rxstatus))
|
||||
if nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME or rxstatus == 10:
|
||||
self.c_lib.freedv_set_sync(freedv_signalling, 0) #FORCE UNSYNC
|
||||
|
||||
|
|
|
|||
|
|
@ -14,20 +14,40 @@ import logging
|
|||
import static
|
||||
import arq
|
||||
|
||||
|
||||
|
||||
class TCPRequestHandler(socketserver.BaseRequestHandler):
|
||||
class DATATCPRequestHandler(socketserver.BaseRequestHandler):
|
||||
|
||||
def handle(self):
|
||||
|
||||
self.data = bytes()
|
||||
while True:
|
||||
chunk = self.request.recv(8192)#.strip()
|
||||
chunk = self.request.recv(8192)#.strip()
|
||||
self.data += chunk
|
||||
if chunk.endswith(b'\n'):
|
||||
break
|
||||
|
||||
self.data += chunk
|
||||
|
||||
# SEND AN ARQ FRAME -------------------------
|
||||
if self.data.startswith(b'ARQ:'):
|
||||
|
||||
data = self.data.split(b'ARQ:')
|
||||
data_out = data[1]
|
||||
|
||||
TRANSMIT_ARQ = threading.Thread(target=arq.transmit, args=[data_out], name="TRANSMIT_ARQ")
|
||||
TRANSMIT_ARQ.start()
|
||||
|
||||
|
||||
|
||||
class CMDTCPRequestHandler(socketserver.BaseRequestHandler):
|
||||
|
||||
def handle(self):
|
||||
|
||||
self.data = bytes()
|
||||
while True:
|
||||
chunk = self.request.recv(8192)#.strip()
|
||||
self.data += chunk
|
||||
if chunk.endswith(b'\n'):
|
||||
break
|
||||
|
||||
|
||||
|
||||
# self.request is the TCP socket connected to the client
|
||||
#self.data = self.request.recv(1024).strip()
|
||||
|
|
@ -49,28 +69,29 @@ class TCPRequestHandler(socketserver.BaseRequestHandler):
|
|||
if self.data.startswith(b'SHOWBUFFERSIZE'):
|
||||
self.request.sendall(bytes(static.RX_BUFFER[-1]))
|
||||
print(static.RX_BUFFER_SIZE)
|
||||
|
||||
# BROADCAST PARSER -----------------------------------------------------------
|
||||
|
||||
if self.data.startswith(b'BC:'):
|
||||
#import modem
|
||||
#modem = modem.RF()
|
||||
|
||||
data = self.data.split(b'BC:')
|
||||
#modem.Transmit(data[1])
|
||||
|
||||
|
||||
|
||||
# SEND AN ARQ FRAME -----------------------------------------------------------
|
||||
|
||||
if self.data.startswith(b'ARQ:'):
|
||||
|
||||
data = self.data.split(b'ARQ:')
|
||||
data_out = data[1]
|
||||
|
||||
#arq.transmit(data_out)
|
||||
|
||||
TRANSMIT_ARQ = threading.Thread(target=arq.transmit, args=[data_out], name="TRANSMIT_ARQ")
|
||||
TRANSMIT_ARQ.start()
|
||||
|
||||
|
||||
|
||||
def start_cmd_socket():
|
||||
|
||||
try:
|
||||
logging.info("SRV | STARTING TCP/IP SOCKET FOR CMD ON PORT: " + str(static.PORT))
|
||||
socketserver.TCPServer.allow_reuse_address = True #https://stackoverflow.com/a/16641793
|
||||
cmdserver = socketserver.TCPServer((static.HOST, static.PORT), CMDTCPRequestHandler)
|
||||
cmdserver.serve_forever()
|
||||
|
||||
finally:
|
||||
cmdserver.server_close()
|
||||
|
||||
|
||||
def start_data_socket():
|
||||
|
||||
try:
|
||||
logging.info("SRV | STARTING TCP/IP SOCKET FOR DATA ON PORT: " + str(static.PORT + 1))
|
||||
socketserver.TCPServer.allow_reuse_address = True #https://stackoverflow.com/a/16641793
|
||||
dataserver = socketserver.TCPServer((static.HOST, static.PORT + 1), DATATCPRequestHandler)
|
||||
dataserver.serve_forever()
|
||||
|
||||
finally:
|
||||
dataserver.server_close()
|
||||
61
static.py
61
static.py
|
|
@ -5,30 +5,35 @@ Created on Wed Dec 23 11:13:57 2020
|
|||
|
||||
@author: DJ2LS
|
||||
"""
|
||||
# ADDITION MESSUREMENT:
|
||||
#AUDIO TIME: 7.451462268829346 #12 # 1 FRAME + PREAMBLE
|
||||
#MODULATION TIME: 0.002051115036010742 #12 # 1 FRAME + PREAMBLE
|
||||
|
||||
#MODULATION TIME: 0.004580974578857422 #12 # 2 FRAME + PREAMBLE
|
||||
#AUDIO TIME: 14.750595331192017 #12 # 2 FRAME + PREAMBLE
|
||||
# Operator Defaults
|
||||
MYCALLSIGN = b''
|
||||
MYCALLSIGN_CRC8 = b''
|
||||
|
||||
DXCALLSIGN = b''
|
||||
DXCALLSIGN_CRC8 = b''
|
||||
|
||||
MYGRID = b''
|
||||
#---------------------------------
|
||||
|
||||
# Server Defaults
|
||||
HOST = "localhost"
|
||||
PORT = 3000
|
||||
#---------------------------------
|
||||
|
||||
# FreeDV Defaults
|
||||
FREEDV_RECEIVE = True
|
||||
|
||||
FREEDV_DATA_MODE = 12
|
||||
FREEDV_DATA_MODE = 10
|
||||
FREEDV_SIGNALLING_MODE = 14
|
||||
|
||||
FREEDV_DATA_BYTES_PER_FRAME = 0
|
||||
FREEDV_DATA_PAYLOAD_PER_FRAME = 0
|
||||
FREEDV_SIGNALLING_BYTES_PER_FRAME = 0
|
||||
FREEDV_SIGNALLING_PAYLOAD_PER_FRAME = 0
|
||||
#---------------------------------
|
||||
|
||||
# Server Defaults
|
||||
HOST = "localhost"
|
||||
PORT = 3000
|
||||
|
||||
|
||||
#AUdio Defaults
|
||||
#Audio Defaults
|
||||
AUDIO_INPUT_DEVICE = 1
|
||||
AUDIO_OUTPUT_DEVICE = 1
|
||||
#TX_SAMPLE_STATE = None
|
||||
|
|
@ -39,20 +44,17 @@ AUDIO_OUTPUT_DEVICE = 1
|
|||
MODEM_SAMPLE_RATE = 8000 #8000
|
||||
AUDIO_FRAMES_PER_BUFFER = 2048
|
||||
AUDIO_CHANNELS = 1
|
||||
#---------------------------------
|
||||
|
||||
|
||||
#TNC DEFAULTS
|
||||
# ARQ
|
||||
TX_N_MAX_RETRIES = 3
|
||||
#ARQ DEFAULTS
|
||||
TX_N_MAX_RETRIES = 10
|
||||
TX_N_RETRIES = 0
|
||||
|
||||
|
||||
|
||||
ARQ_TX_N_FRAMES_PER_BURST = 0
|
||||
ARQ_TX_N_BURSTS = 0
|
||||
|
||||
ARQ_PAYLOAD_PER_FRAME = 0
|
||||
ARQ_ACK_WAITING_FOR_ID = 0
|
||||
|
||||
ARQ_RX_BURST_BUFFER = []
|
||||
ARQ_RX_FRAME_BUFFER = []
|
||||
ARQ_RX_FRAME_N_BURSTS = 0
|
||||
|
|
@ -68,13 +70,22 @@ ARQ_RX_N_CURRENT_ARQ_FRAME = 0
|
|||
##
|
||||
|
||||
ARQ_N_RX_ARQ_FRAMES = 0 # total number of received frames
|
||||
|
||||
ARQ_N_RX_FRAMES_PER_BURSTS = 0 # NUMBER OF FRAMES WE ARE WAITING FOR --> GOT DATA FROM RECEIVED FRAME
|
||||
ARQ_ACK_PAYLOAD_PER_FRAME = 0 # PAYLOAD per ACK frame
|
||||
ARQ_ACK_RECEIVED = 0 # set to 1 if ACK received
|
||||
ARQ_FRAME_ACK_RECEIVED = 0 # set to 1 if FRAME ACK received
|
||||
ARQ_ACK_TIMEOUT = 0 # set to 1 if timeut reached
|
||||
ARQ_ACK_TIMEOUT_SECONDS = 4.0 #timeout for waiting for ACK frames
|
||||
|
||||
ARQ_ACK_RECEIVED = False # set to 1 if ACK received
|
||||
ARQ_RX_ACK_TIMEOUT = False # set to 1 if timeut reached
|
||||
ARQ_RX_ACK_TIMEOUT_SECONDS = 10.0 #timeout for waiting for ACK frames
|
||||
|
||||
ARQ_FRAME_ACK_RECEIVED = False # set to 1 if FRAME ACK received
|
||||
ARQ_RX_FRAME_TIMEOUT = False
|
||||
ARQ_RX_FRAME_TIMEOUT_SECONDS = 10.0
|
||||
|
||||
|
||||
ARQ_RX_RPT_TIMEOUT = False
|
||||
ARQ_RX_RPT_TIMEOUT_SECONDS = 10.0
|
||||
ARQ_RPT_RECEIVED = False #indicate if RPT frame has been received
|
||||
ARQ_RPT_FRAMES = [] #buffer for frames which are requested to repeat
|
||||
|
||||
FRAME_CRC = b''
|
||||
FRAME_BOF = b'\xAA\xAA' #here we define 2 bytes for the BOF
|
||||
|
|
@ -89,7 +100,7 @@ ARQ_N_SENT_FRAMES = 0 #counter for already sent frames
|
|||
# IDLE
|
||||
# RECEIVING_DATA
|
||||
# SENDING_DATA
|
||||
# RECEIVING_ACK
|
||||
# RECEIVING_SIGNALLING
|
||||
# SENDING_ACK
|
||||
# ACK_RECEIVED
|
||||
#
|
||||
|
|
|
|||
Loading…
Reference in a new issue