mirror of
https://github.com/DJ2LS/FreeDATA
synced 2024-05-14 08:04:33 +00:00
improved state and timing
This commit is contained in:
parent
0a8ea24112
commit
91114d0db2
4 changed files with 133 additions and 94 deletions
174
arq.py
174
arq.py
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@ -22,11 +22,11 @@ modem = modem.RF()
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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 arq_ack_timeout():
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# static.ARQ_ACK_TIMEOUT = 1
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def arq_rpt_timeout():
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static.ARQ_RPT_TIMEOUT = True
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#def arq_rpt_timeout():
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# static.ARQ_RPT_TIMEOUT = True
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def data_received(data_in):
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@ -76,6 +76,8 @@ def data_received(data_in):
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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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@ -95,7 +97,6 @@ def data_received(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_N_FRAME == static.ARQ_N_RX_FRAMES_PER_BURSTS and static.ARQ_RX_BURST_BUFFER.count(None) == 1: #if received bursts are equal to burst number in frame
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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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@ -115,11 +116,11 @@ def data_received(data_in):
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# --------------- CHECK WHICH BURST FRAMES WE ARE MISSING -------------------------------------------
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missing_frames = b''
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for burst in range(1,len(static.ARQ_RX_BURST_BUFFER)):
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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[burst] == None:
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burst = burst.to_bytes(2, byteorder='big')
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missing_frames += burst
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if static.ARQ_RX_BURST_BUFFER[burstnumber] == None:
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frame_number = burstnumber.to_bytes(2, byteorder='big')
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missing_frames += frame_number
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logging.info("ARQ | TX | RPT ARQ FRAMES [" + str(missing_frames) + "]")
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@ -179,8 +180,9 @@ def data_received(data_in):
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ack_frame = b'='+ bytes(static.FRAME_CRC) # < = 61
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#TRANSMIT ACK FRAME FOR BURST-----------------------------------------------
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time.sleep(0.5) #0.5
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logging.info("ARQ | TX | ARQ DATA FRAME ACK [" + str(static.FRAME_CRC.hex()) +"]")
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time.sleep(0.5)
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modem.transmit_arq_ack(ack_frame)
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# clearing buffers and resetting counters
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@ -198,42 +200,9 @@ def data_received(data_in):
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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.info("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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static.ARQ_RPT_TIMEOUT = True #Force timer to stop waiting
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static.ARQ_RPT_RECEIVED = False
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static.ARQ_RPT_FRAMES = []
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def burst_rpt_received(data_in):
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logging.info("ARQ | RX | BURST RPT RCVD!")
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static.ARQ_ACK_TIMEOUT = 0 #Force timer to stop waiting
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static.ARQ_ACK_RECEIVED = 0 #Force data loops of TNC to stop and continue with next frame
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static.ARQ_RPT_RECEIVED = True
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static.ARQ_RPT_FRAMES = []
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missing_area = bytes(data_in[1:9])
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for i in range(0,6,2):
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if not missing_area[i:i+2].endswith(b'\x00\x00'):
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missing = missing_area[i:i+2]
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static.ARQ_RPT_FRAMES.insert(0,missing)
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def frame_ack_received():
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logging.info("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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static.RPT_ACK_RECEIVED = False
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static.ARQ_RPT_TIMEOUT = True
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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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@ -282,7 +251,7 @@ def transmit(data_out):
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#--------------------------------------------- N ATTEMPTS TO SEND BURSTS IF ACK RECEPTION FAILS
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for static.TX_N_RETRIES in range(static.TX_N_MAX_RETRIES):
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if static.ARQ_N_SENT_FRAMES+1 <= static.TX_BUFFER_SIZE:
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if static.ARQ_N_SENT_FRAMES + 1 <= static.TX_BUFFER_SIZE:
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logging.info("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) + "]")
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@ -292,24 +261,24 @@ def transmit(data_out):
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# lets wait during sending. After sending is finished we will continue
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while static.ARQ_STATE == 'SENDING_DATA':
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time.sleep(0.05)
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print("sending.....")
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time.sleep(0.01)
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#print("sending.....")
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# --------------------------- START TIMER FOR WAITING FOR ACK ---> IF TIMEOUT REACHED, ACK_TIMEOUT = 1
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#reset timer and ack state
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static.ARQ_FRAME_ACK_RECEIVED = 0
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static.ARQ_ACK_RECEIVED = 0
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static.ARQ_ACK_TIMEOUT = 0
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static.ARQ_FRAME_ACK_RECEIVED = False
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static.ARQ_ACK_RECEIVED = False
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static.ARQ_RX_ACK_TIMEOUT = False
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logging.debug("ARQ | RX | WAITING FOR BURST ACK")
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static.ARQ_STATE = 'RECEIVING_ACK'
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logging.info("ARQ | RX | WAITING FOR BURST ACK")
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static.ARQ_STATE = 'RECEIVING_SIGNALLING'
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timer = threading.Timer(static.ARQ_ACK_TIMEOUT_SECONDS, arq_ack_timeout)
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timer = threading.Timer(static.ARQ_RX_ACK_TIMEOUT_SECONDS, helpers.arq_ack_timeout)
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timer.start()
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# --------------------------- WHILE TIMEOUT NOT REACHED AND NO ACK RECEIVED --> LISTEN
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while (static.ARQ_ACK_RECEIVED == 0 or static.ARQ_RPT_RECEIVED == False or static.ARQ_FRAME_ACK_RECEIVED == 0) and static.ARQ_TIMEOUT_RECEIVED == 0:
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while (static.ARQ_ACK_RECEIVED == False or static.ARQ_RPT_RECEIVED == False or static.ARQ_FRAME_ACK_RECEIVED == False) and static.ARQ_RX_ACK_TIMEOUT == False:
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time.sleep(0.01) # lets reduce CPU load a little bit
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#print(static.ARQ_STATE)
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@ -317,59 +286,68 @@ def transmit(data_out):
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if static.ARQ_RPT_RECEIVED == True:
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logging.info("ARQ | RX | REQUEST FOR REPEATING FRAMES: " + str(static.ARQ_RPT_FRAMES))
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logging.info("ARQ | TX | SENDING REQUESTED FRAMES: " + str(static.ARQ_RPT_FRAMES))
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TRANSMIT_ARQ_BURST_THREAD = threading.Thread(target=modem.transmit_arq_burst, name="TRANSMIT_ARQ_BURST")
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TRANSMIT_ARQ_BURST_THREAD.start()
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# lets wait during sending. After sending is finished we will continue
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while static.ARQ_STATE == 'SENDING_DATA':
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time.sleep(0.05)
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time.sleep(0.01)
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static.ARQ_FRAME_ACK_RECEIVED = 0
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static.ARQ_ACK_RECEIVED = 0
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static.ARQ_ACK_TIMEOUT = 0
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static.ARQ_RPT_TIMEOUT = False
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static.ARQ_FRAME_ACK_RECEIVED = False
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static.ARQ_ACK_RECEIVED = False
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static.ARQ_RX_ACK_TIMEOUT = False
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static.ARQ_RX_RPT_TIMEOUT = False
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static.ARQ_STATE = 'RECEIVING_ACK'
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static.ARQ_STATE = 'RECEIVING_SIGNALLING'
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timer = threading.Timer(static.ARQ_RPT_TIMEOUT_SECONDS, arq_rpt_timeout)
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timer = threading.Timer(static.ARQ_RX_RPT_TIMEOUT_SECONDS, helpers.arq_rpt_timeout)
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timer.start()
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while static.ARQ_ACK_RECEIVED == 0 and static.ARQ_RPT_TIMEOUT == False:
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while static.ARQ_ACK_RECEIVED == False and static.ARQ_FRAME_ACK_RECEIVED == False and static.ARQ_RX_RPT_TIMEOUT == False:
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time.sleep(0.01) # lets reduce CPU load a little bit
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if static.ARQ_ACK_RECEIVED == 1:
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if static.ARQ_ACK_RECEIVED == True:
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print("ACK WHILE RPT")
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logging.info("ARQ | RX | ACK RECEIVED AFTER FRAME REPEAT")
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static.ARQ_ACK_TIMEOUT = 1
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static.ARQ_RPT_TIMEOUT = True
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#break
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static.ARQ_RX_ACK_TIMEOUT = True
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static.ARQ_RX_RPT_TIMEOUT = True
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static.ARQ_RPT_FRAMES = []
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if static.ARQ_RX_RPT_TIMEOUT == True and static.ARQ_ACK_RECEIVED == False:
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print("Burst lost....")
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static.ARQ_RPT_RECEIVED = False
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static.ARQ_RPT_FRAMES = []
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#--------------------------------------------------------------------------------------------------------------
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#if static.ARQ_ACK_RECEIVED == 0 and static.ARQ_ACK_TIMEOUT == 1:
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#if static.ARQ_ACK_RECEIVED == 0 and static.ARQ_RX_ACK_TIMEOUT == 1:
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# #logging.info("ARQ | RX | ACK TIMEOUT | SENDING ARQ BURST AGAIN")
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# pass
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#--------------- BREAK LOOP IF ACK HAS BEEN RECEIVED
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if static.ARQ_ACK_RECEIVED == 1:
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if static.ARQ_ACK_RECEIVED == True:
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logging.info("ARQ | RX | ACK RECEIVED")
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#-----------IF ACK RECEIVED, INCREMENT ITERATOR FOR MAIN LOOP TO PROCEED WITH NEXT FRAMES/BURST
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static.ARQ_N_SENT_FRAMES = static.ARQ_N_SENT_FRAMES + static.ARQ_TX_N_FRAMES_PER_BURST
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break
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#--------------- BREAK LOOP IF FRAME ACK HAS BEEN RECEIVED EARLIER AS EXPECTED
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if static.ARQ_FRAME_ACK_RECEIVED == 1:
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if static.ARQ_FRAME_ACK_RECEIVED == True:
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logging.info("ARQ | RX | EARLY FRAME ACK RECEIVED - STOPPING TX")
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#static.ARQ_N_SENT_FRAMES = #static.TX_BUFFER_SIZE
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static.ARQ_N_SENT_FRAMES = static.ARQ_N_SENT_FRAMES + static.ARQ_TX_N_FRAMES_PER_BURST
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break
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# ----------- if no ACK received and out of retries.....stop frame sending
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if static.ARQ_ACK_RECEIVED == 0 and static.ARQ_FRAME_ACK_RECEIVED == 0 and static.ARQ_ACK_TIMEOUT == 1:
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if static.ARQ_ACK_RECEIVED == False and static.ARQ_FRAME_ACK_RECEIVED == False and static.ARQ_RX_ACK_TIMEOUT == True:
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logging.info("ARQ | TX | NO BURST OR FRAME ACK RECEIVED | DATA SHOULD BE RESEND!")
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break
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#-------------------------BREAK TX BUFFER LOOP IF ALL PACKETS HAVE BEEN SENT AND WE GOT A FRAME ACK
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if static.ARQ_N_SENT_FRAMES == static.TX_BUFFER_SIZE and static.ARQ_FRAME_ACK_RECEIVED == 1:
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if static.ARQ_N_SENT_FRAMES == static.TX_BUFFER_SIZE and static.ARQ_FRAME_ACK_RECEIVED == True:
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logging.info("ARQ | RX | REGULAR FRAME ACK RECEIVED - DATA TRANSMITTED!")
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break
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@ -379,9 +357,16 @@ def transmit(data_out):
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logging.info("ARQ | TX | BUFFER EMPTY")
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# - RESET COUNTERS
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static.ARQ_N_SENT_FRAMES = 0
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static.ARQ_TX_N_FRAMES_PER_BURST = 0
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static.ARQ_ACK_RECEIVED = 0
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static.ARQ_FRAME_ACK_RECEIVED = 0
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static.ARQ_TX_N_FRAMES_PER_BURST = False
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static.ARQ_ACK_RECEIVED = False
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static.ARQ_FRAME_ACK_RECEIVED = False
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# BURST MACHINE TO DEFINE N BURSTS PER FRAME ---> LATER WE CAN USE CHANNEL MESSUREMENT TO SET FRAMES PER BURST
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def get_n_frames_per_burst():
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@ -389,3 +374,44 @@ def get_n_frames_per_burst():
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#n_frames_per_burst = randrange(1,10)
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n_frames_per_burst = 4
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return n_frames_per_burst
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def burst_ack_received():
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#logging.info("ARQ | RX | BURST ACK RCVD!")
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static.ARQ_RX_ACK_TIMEOUT = True #Force timer to stop waiting
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static.ARQ_ACK_RECEIVED = True #Force data loops of TNC to stop and continue with next frame
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static.ARQ_RX_RPT_TIMEOUT = True #Force timer to stop waiting
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static.ARQ_RPT_RECEIVED = False
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static.ARQ_RPT_FRAMES = []
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def frame_ack_received():
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#logging.info("ARQ | RX | FRAME ACK RCVD!")
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static.ARQ_RX_ACK_TIMEOUT = True #Force timer to stop waiting
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static.ARQ_FRAME_ACK_RECEIVED = True #Force data loops of TNC to stop and continue with next frame
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static.ARQ_RX_RPT_TIMEOUT = True #Force timer to stop waiting
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static.ARQ_RPT_RECEIVED = False
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static.ARQ_RPT_FRAMES = []
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def burst_rpt_received(data_in):
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#logging.info("ARQ | RX | BURST RPT RCVD!")
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static.ARQ_RX_ACK_TIMEOUT = False #Force timer to stop waiting
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static.ARQ_ACK_RECEIVED = False #Force data loops of TNC to stop and continue with next frame
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static.ARQ_RPT_RECEIVED = True
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static.ARQ_RPT_FRAMES = []
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missing_area = bytes(data_in[1:9])
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for i in range(0,6,2):
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if not missing_area[i:i+2].endswith(b'\x00\x00'):
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missing = missing_area[i:i+2]
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static.ARQ_RPT_FRAMES.insert(0,missing)
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10
helpers.py
10
helpers.py
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@ -27,3 +27,13 @@ def get_crc_16(data):
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crc_data = crc_algorithm(data)
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crc_data = crc_data.to_bytes(2, byteorder='big')
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return crc_data
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def arq_ack_timeout():
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static.ARQ_RX_ACK_TIMEOUT = True
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#print("ARQ_RX_ACK_TIMEOUT")
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def arq_rpt_timeout():
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static.ARQ_RX_RPT_TIMEOUT = True
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#print("ARQ_RX_RPT_TIMEOUT")
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14
modem.py
14
modem.py
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@ -156,10 +156,11 @@ class RF():
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txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
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elif static.ARQ_RPT_RECEIVED == True:
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for n in range(0,len(static.ARQ_RPT_FRAMES)):
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missing_frame = int.from_bytes(static.ARQ_RPT_FRAMES[n], "big")
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print("MISSING ARQ FRAME: " + str(missing_frame))
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#---------------------------BUILD ARQ BURST ---------------------------------------------------------------------
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frame_type = 10 + missing_frame #static.ARQ_TX_N_FRAMES_PER_BURST
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frame_type = bytes([frame_type])
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@ -196,7 +197,8 @@ class RF():
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# -------------- transmit audio
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self.stream_tx.write(bytes(txbuffer))
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static.ARQ_STATE = 'RECEIVING_ACK'
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static.ARQ_STATE = 'IDLE'
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#static.ARQ_STATE = 'RECEIVING_SIGNALLING'
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#--------------------------------------------------------------------------------------------------------
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def receive(self,data_mode,signalling_mode):
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@ -282,6 +284,7 @@ class RF():
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if 50 >= frametype >= 10:
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if frame != 3 or force == True:
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arq.data_received(bytes(data_bytes_out[:-2])) #send payload data to arq checker without CRC16
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#print("static.ARQ_RX_BURST_BUFFER.count(None) " + str(static.ARQ_RX_BURST_BUFFER.count(None)))
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if static.ARQ_RX_BURST_BUFFER.count(None) <= 1:
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print("FULL BURST BUFFER ---> UNSYNC")
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@ -301,7 +304,7 @@ class RF():
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while static.ARQ_STATE == 'IDLE' or static.ARQ_STATE == 'RECEIVING_ACK':
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while static.ARQ_STATE == 'IDLE' or static.ARQ_STATE == 'RECEIVING_SIGNALLING':
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time.sleep(0.01)
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nin = self.c_lib.freedv_nin(freedv_signalling)
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@ -318,7 +321,6 @@ class RF():
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if nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME:
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self.c_lib.freedv_set_sync(freedv_signalling, 0)
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frametype = int.from_bytes(bytes(signalling_bytes_out[:1]), "big")
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print("SIGNALLING RECEIVED")
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# BURST ACK
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if frametype == 60:
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@ -334,8 +336,8 @@ class RF():
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rxstatus = self.c_lib.freedv_get_rx_status(freedv_signalling)
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print("ACK")
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print(rxstatus)
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#print("ACK")
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#print(rxstatus)
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#if nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME:# or rxstatus == 10:
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# self.c_lib.freedv_set_sync(freedv_signalling, 0) #FORCE UNSYNC
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|
|
17
static.py
17
static.py
|
@ -82,15 +82,16 @@ 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 = 6.0 #timeout for waiting for ACK frames
|
||||
|
||||
ARQ_RPT_TIMEOUT = False
|
||||
ARQ_RPT_TIMEOUT_SECONDS = 6.0
|
||||
ARQ_ACK_RECEIVED = False # set to 1 if ACK received
|
||||
ARQ_FRAME_ACK_RECEIVED = False # set to 1 if FRAME ACK received
|
||||
ARQ_RX_ACK_TIMEOUT = False # set to 1 if timeut reached
|
||||
ARQ_RX_ACK_TIMEOUT_SECONDS = 6.0 #timeout for waiting for ACK frames
|
||||
|
||||
ARQ_RX_RPT_TIMEOUT = False
|
||||
ARQ_RX_RPT_TIMEOUT_SECONDS = 6.0
|
||||
ARQ_RPT_RECEIVED = False #indicate if RPT frame has been received
|
||||
ARQ_RPT_FRAMES = []
|
||||
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
|
||||
|
@ -105,7 +106,7 @@ 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