mirror of
https://github.com/DJ2LS/FreeDATA
synced 2024-05-14 08:04:33 +00:00
code cleanup
gute code clean up with much less global variables now. ARQ beahvior has also been cut down. There can be done even more...
This commit is contained in:
parent
e435e6e835
commit
794f8b221a
4 changed files with 225 additions and 310 deletions
|
@ -35,57 +35,18 @@ detect and use them.
|
|||
|
||||
'''
|
||||
|
||||
# MODULE GLOBALS
|
||||
|
||||
|
||||
# MODULE GLOBALS TX/RX
|
||||
|
||||
DATA_CHANNEL_MAX_RETRIES = 3 # N attempts for connecting to another station
|
||||
DATA_CHANNEL_READY_FOR_DATA = False # Indicator if we are ready for sending or receiving data
|
||||
DATA_CHANNEL_LAST_RECEIVED = 0.0 # time of last "live sign" of a frame
|
||||
DATA_CHANNEL_MODE = 0 # mode for data channel
|
||||
DATA_FRAME_BOF = b'\xAA\xAA' # 2 bytes for the BOF End of File indicator in a data frame
|
||||
DATA_FRAME_EOF = b'\xFF\xFF' # 2 bytes for the EOF End of File indicator in a data frame
|
||||
|
||||
BURST_ACK_RECEIVED = False # if we received an acknowledge frame for a burst
|
||||
DATA_FRAME_ACK_RECEIVED = False # if we received an acknowledge frame for a data frame
|
||||
RPT_REQUEST_RECEIVED = False # if we received an request for repeater frames
|
||||
RPT_REQUEST_BUFFER = [] # requested frames, saved in a list
|
||||
|
||||
BURST_ACK_TIMEOUT_SECONDS = 7.0 # timeout for burst acknowledges
|
||||
DATA_FRAME_ACK_TIMEOUT_SECONDS = 10.0 # timeout for data frame acknowledges
|
||||
RPT_ACK_TIMEOUT_SECONDS = 10.0 # timeout for rpt frame acknowledges
|
||||
|
||||
#BURST_ACK_TIMEOUT = False # state for timeout reached
|
||||
#DATA_FRAME_ACK_TIMEOUT = False # state for timeout reached
|
||||
RPT_ACK_TIMEOUT = False # state for timeout reached static.ARQ_RX_RPT_TIMEOUT
|
||||
|
||||
|
||||
# MODULE GLOBALS RX
|
||||
RX_START_OF_TRANSMISSION = 0 # time of transmission start
|
||||
RX_START_OF_BURST = 0 # time of start of current burst
|
||||
RX_PAYLOAD_PER_MODEM_FRAME = 0 # payload per moden frame
|
||||
RX_PAYLOAD_PER_ARQ_FRAME = 0 # payload per arq frame
|
||||
RX_N_FRAME_OF_BURST = 0 # number of frame per burst
|
||||
RX_N_FRAMES_PER_BURST = 0 # amount of n frames per burst
|
||||
RX_N_FRAME_OF_DATA_FRAME = 0 # number of frame per total data frame
|
||||
RX_N_FRAMES_PER_DATA_FRAME = 0 # amount of n frames per data frame # total number of frames
|
||||
RX_FRAME_BOF_RECEIVED = False # here we save, if we received a "beginn of (data)frame"
|
||||
RX_FRAME_EOF_RECEIVED = False # here we save, if we received a "end of (data)frame"
|
||||
#static.RX_FRAME_BUFFER = [] # list buffer for data frame
|
||||
#static.RX_BURST_BUFFER = [] # list buffer for burst
|
||||
|
||||
|
||||
# MODULE GLOBALS TX
|
||||
TX_START_OF_TRANSMISSION = 0 # time of transmission start
|
||||
TX_PAYLOAD_PER_MODEM_FRAME = 0 # payload per moden frame
|
||||
TX_PAYLOAD_PER_ARQ_FRAME = 0 # payload per arq frame
|
||||
#static.TX_BUFFER = [] # buffer for sending data
|
||||
TX_BUFFER_SIZE = 0 # size of static.TX_BUFFER
|
||||
TX_N_SENT_FRAMES = 0 # already sent frames per data frame
|
||||
TX_N_FRAMES_PER_BURST = 0 # amount of n frames per burst
|
||||
TX_N_RETRIES_PER_BURST = 0 # retries we already sent data
|
||||
TX_N_MAX_RETRIES_PER_BURST = 3 # max amount of retries we sent before frame is lost
|
||||
|
||||
|
||||
# ################################################
|
||||
# ARQ DATA HANDLER
|
||||
|
@ -94,71 +55,66 @@ TX_N_MAX_RETRIES_PER_BURST = 3 # max amount of retries we sent
|
|||
def arq_data_received(data_in, bytes_per_frame):
|
||||
# we neeed to declare our global variables, so the thread has access to them
|
||||
global RX_START_OF_TRANSMISSION
|
||||
global RX_START_OF_BURST
|
||||
global RX_PAYLOAD_PER_MODEM_FRAME
|
||||
global RX_PAYLOAD_PER_ARQ_FRAME
|
||||
global RX_N_FRAME_OF_BURST
|
||||
global RX_N_FRAMES_PER_BURST
|
||||
global RX_N_FRAME_OF_DATA_FRAME
|
||||
global RX_N_FRAMES_PER_DATA_FRAME
|
||||
global RX_FRAME_BOF_RECEIVED
|
||||
global RX_FRAME_EOF_RECEIVED
|
||||
global DATA_CHANNEL_LAST_RECEIVED
|
||||
#global static.RX_BURST_BUFFER
|
||||
#global static.RX_FRAME_BUFFER
|
||||
global DATA_CHANNEL_READY_FOR_DATA
|
||||
|
||||
RX_PAYLOAD_PER_MODEM_FRAME = bytes_per_frame - 2
|
||||
RX_PAYLOAD_PER_ARQ_FRAME = RX_PAYLOAD_PER_MODEM_FRAME - 8
|
||||
# these vars will be overwritten during processing data
|
||||
RX_FRAME_BOF_RECEIVED = False # here we save, if we received a "beginn of (data)frame"
|
||||
RX_FRAME_EOF_RECEIVED = False # here we save, if we received a "end of (data)frame"
|
||||
DATA_FRAME_BOF = b'\xAA\xAA' # 2 bytes for the BOF End of File indicator in a data frame
|
||||
DATA_FRAME_EOF = b'\xFF\xFF' # 2 bytes for the EOF End of File indicator in a data frame
|
||||
|
||||
|
||||
RX_PAYLOAD_PER_MODEM_FRAME = bytes_per_frame - 2 # payload per moden frame
|
||||
RX_PAYLOAD_PER_ARQ_FRAME = RX_PAYLOAD_PER_MODEM_FRAME - 8 # payload per arq frame
|
||||
|
||||
static.TNC_STATE = 'BUSY'
|
||||
static.ARQ_STATE = 'DATA'
|
||||
DATA_CHANNEL_LAST_RECEIVED = int(time.time())
|
||||
|
||||
|
||||
RX_N_FRAME_OF_BURST = int.from_bytes(bytes(data_in[:1]), "big") - 10 # get number of burst frame
|
||||
RX_N_FRAMES_PER_BURST = int.from_bytes(bytes(data_in[1:2]), "big") # get number of bursts from received frame
|
||||
RX_N_FRAME_OF_DATA_FRAME = int.from_bytes(bytes(data_in[2:4]), "big") # get current number of total frames
|
||||
RX_N_FRAMES_PER_DATA_FRAME = int.from_bytes(bytes(data_in[4:6]), "big") # get total number of frames
|
||||
static.TOTAL_BYTES = RX_N_FRAMES_PER_DATA_FRAME * RX_PAYLOAD_PER_ARQ_FRAME # calculate total bytes
|
||||
|
||||
|
||||
calculate_transfer_rate()
|
||||
arq_percent_burst = int((RX_N_FRAME_OF_BURST / RX_N_FRAMES_PER_BURST) * 100)
|
||||
arq_percent_frame = int(((RX_N_FRAME_OF_DATA_FRAME) / RX_N_FRAMES_PER_DATA_FRAME) * 100)
|
||||
calculate_transfer_rate_rx(RX_N_FRAMES_PER_DATA_FRAME, RX_N_FRAME_OF_DATA_FRAME, RX_START_OF_TRANSMISSION, RX_PAYLOAD_PER_ARQ_FRAME)
|
||||
|
||||
logging.log(24, "ARQ | RX | " + str(DATA_CHANNEL_MODE) + " | F:[" + str(RX_N_FRAME_OF_BURST) + "/" + str(RX_N_FRAMES_PER_BURST) + "] [" + str(arq_percent_burst).zfill(3) + "%] T:[" + str(RX_N_FRAME_OF_DATA_FRAME) + "/" + str(RX_N_FRAMES_PER_DATA_FRAME) + "] [" + str(arq_percent_frame).zfill(3) + "%] [SNR:" + str(static.SNR) + "]")
|
||||
|
||||
|
||||
|
||||
# allocate ARQ_static.RX_FRAME_BUFFER as a list with "None" if not already done. This should be done only once per burst!
|
||||
# here we will save the N frame of a data frame to N list position so we can explicit search for it
|
||||
# delete frame buffer if first frame to make sure the buffer is cleared and no junks of a old frame is remaining
|
||||
if RX_N_FRAME_OF_DATA_FRAME == 1:
|
||||
static.RX_FRAME_BUFFER = []
|
||||
|
||||
# we set the start of transmission - 7 seconds, which is more or less the transfer time for the first frame
|
||||
RX_START_OF_TRANSMISSION = time.time() - 7
|
||||
calculate_transfer_rate()
|
||||
#if RX_N_FRAME_OF_DATA_FRAME == 1:
|
||||
# static.RX_FRAME_BUFFER = []
|
||||
#
|
||||
# # we set the start of transmission - 7 seconds, which is more or less the transfer time for the first frame
|
||||
# RX_START_OF_TRANSMISSION = time.time() - 7
|
||||
# calculate_transfer_rate()
|
||||
|
||||
#try appending data to frame buffer
|
||||
try:
|
||||
static.RX_FRAME_BUFFER[RX_N_FRAME_OF_DATA_FRAME] = bytes(data_in)
|
||||
|
||||
except IndexError:
|
||||
|
||||
# we are receiving new data, so we are doing a cleanup first
|
||||
static.RX_FRAME_BUFFER = []
|
||||
|
||||
# set the start of transmission - 7 seconds,
|
||||
# which is more or less the transfer time for the first frame
|
||||
RX_START_OF_TRANSMISSION = time.time() - 7
|
||||
|
||||
for i in range(0, RX_N_FRAMES_PER_DATA_FRAME + 1):
|
||||
static.RX_FRAME_BUFFER.insert(i, None)
|
||||
|
||||
static.RX_FRAME_BUFFER[RX_N_FRAME_OF_DATA_FRAME] = bytes(data_in)
|
||||
RX_FRAME_BOF_RECEIVED = False
|
||||
RX_FRAME_EOF_RECEIVED = False
|
||||
|
||||
#if RX_N_FRAME_OF_BURST == 1:
|
||||
# static.ARQ_START_OF_BURST = time.time() - 6
|
||||
|
||||
if RX_N_FRAME_OF_BURST == 1:
|
||||
static.ARQ_START_OF_BURST = time.time() - 6
|
||||
calculate_transfer_rate()
|
||||
|
||||
# try appending data to burst buffer
|
||||
try:
|
||||
|
@ -267,7 +223,7 @@ def arq_data_received(data_in, bytes_per_frame):
|
|||
# IF THE FRAME PAYLOAD CRC IS EQUAL TO THE FRAME CRC WHICH IS KNOWN FROM THE HEADER --> SUCCESS
|
||||
if frame_payload_crc == data_frame_crc:
|
||||
logging.log(25, "ARQ | RX | DATA FRAME SUCESSFULLY RECEIVED! :-) ")
|
||||
|
||||
calculate_transfer_rate_rx(RX_N_FRAMES_PER_DATA_FRAME, RX_N_FRAME_OF_DATA_FRAME, RX_START_OF_TRANSMISSION, RX_PAYLOAD_PER_ARQ_FRAME)
|
||||
# append received frame to RX_BUFFER
|
||||
static.RX_BUFFER.append([static.DXCALLSIGN,static.DXGRID,int(time.time()), complete_data_frame.decode("utf-8")])
|
||||
|
||||
|
@ -286,37 +242,51 @@ def arq_data_received(data_in, bytes_per_frame):
|
|||
while static.CHANNEL_STATE == 'SENDING_SIGNALLING':
|
||||
time.sleep(0.01)
|
||||
|
||||
arq_reset_frame_machine()
|
||||
|
||||
#arq_reset_frame_machine()
|
||||
static.TNC_STATE = 'IDLE'
|
||||
static.ARQ_STATE = 'IDLE'
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]<< >>[" + str(static.DXCALLSIGN, 'utf-8') + "] [SNR:" + str(static.SNR) + "]")
|
||||
|
||||
else:
|
||||
print("ARQ_FRAME_BOF_RECEIVED " + str(RX_FRAME_BOF_RECEIVED))
|
||||
print("ARQ_FRAME_EOF_RECEIVED " + str(RX_FRAME_EOF_RECEIVED))
|
||||
print(static.RX_FRAME_BUFFER)
|
||||
calculate_transfer_rate_rx(RX_N_FRAMES_PER_DATA_FRAME, RX_N_FRAME_OF_DATA_FRAME, RX_START_OF_TRANSMISSION, RX_PAYLOAD_PER_ARQ_FRAME)
|
||||
logging.error("ARQ | RX | DATA FRAME NOT SUCESSFULLY RECEIVED!")
|
||||
|
||||
arq_reset_frame_machine()
|
||||
|
||||
# STATE CLEANUP
|
||||
#arq_reset_frame_machine()
|
||||
static.TNC_STATE = 'IDLE'
|
||||
static.ARQ_STATE = 'IDLE'
|
||||
DATA_CHANNEL_READY_FOR_DATA = False
|
||||
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]<<X>>[" + str(static.DXCALLSIGN, 'utf-8') + "] [SNR:" + str(static.SNR) + "]")
|
||||
|
||||
|
||||
def arq_transmit(data_out):
|
||||
def arq_transmit(data_out, mode, n_frames_per_burst):
|
||||
|
||||
#global TX_PAYLOAD_PER_MODEM_FRAME
|
||||
global TX_PAYLOAD_PER_ARQ_FRAME
|
||||
#static.TX_BUFFER
|
||||
global TX_BUFFER_SIZE
|
||||
global TX_N_SENT_FRAMES
|
||||
global TX_N_FRAMES_PER_BURST
|
||||
global TX_N_RETRIES_PER_BURST
|
||||
global TX_N_MAX_RETRIES_PER_BURST
|
||||
global RPT_REQUEST_BUFFER
|
||||
global DATA_FRAME_ACK_RECEIVED
|
||||
global RPT_REQUEST_RECEIVED
|
||||
global BURST_ACK_RECEIVED
|
||||
global DATA_CHANNEL_MODE
|
||||
global TX_START_OF_TRANSMISSION
|
||||
#global TX_START_OF_TRANSMISSION
|
||||
global DATA_CHANNEL_READY_FOR_DATA
|
||||
|
||||
DATA_CHANNEL_MODE = mode
|
||||
|
||||
DATA_FRAME_BOF = b'\xAA\xAA' # 2 bytes for the BOF End of File indicator in a data frame
|
||||
DATA_FRAME_EOF = b'\xFF\xFF' # 2 bytes for the EOF End of File indicator in a data frame
|
||||
|
||||
TX_N_SENT_FRAMES = 0 # already sent frames per data frame
|
||||
TX_N_RETRIES_PER_BURST = 0 # retries we already sent data
|
||||
TX_N_MAX_RETRIES_PER_BURST = 5 # max amount of retries we sent before frame is lost
|
||||
TX_N_FRAMES_PER_BURST = n_frames_per_burst # amount of n frames per burst
|
||||
TX_BUFFER = [] # our buffer for appending new data
|
||||
|
||||
BURST_ACK_TIMEOUT_SECONDS = 7.0 # timeout for burst acknowledges
|
||||
DATA_FRAME_ACK_TIMEOUT_SECONDS = 10.0 # timeout for data frame acknowledges
|
||||
RPT_ACK_TIMEOUT_SECONDS = 10.0 # timeout for rpt frame acknowledges
|
||||
|
||||
|
||||
# we need to set payload per frame manually at this point. maybe we can do this more dynmic.
|
||||
|
@ -337,7 +307,7 @@ def arq_transmit(data_out):
|
|||
TX_PAYLOAD_PER_ARQ_FRAME = payload_per_frame - 8
|
||||
frame_header_length = 6
|
||||
|
||||
n_arq_frames_per_data_frame = (len(data_out) + frame_header_length) // TX_PAYLOAD_PER_ARQ_FRAME + ((len(data_out) + frame_header_length) % TX_PAYLOAD_PER_ARQ_FRAME > 0)
|
||||
#n_arq_frames_per_data_frame = (len(data_out) + frame_header_length) // TX_PAYLOAD_PER_ARQ_FRAME + ((len(data_out) + frame_header_length) % TX_PAYLOAD_PER_ARQ_FRAME > 0)
|
||||
|
||||
frame_payload_crc = helpers.get_crc_16(data_out)
|
||||
|
||||
|
@ -347,8 +317,8 @@ def arq_transmit(data_out):
|
|||
# save len of data_out to TOTAL_BYTES for our statistics
|
||||
static.TOTAL_BYTES = len(data_out)
|
||||
# --------------------------------------------- LETS CREATE A BUFFER BY SPLITTING THE FILES INTO PEACES
|
||||
static.TX_BUFFER = [data_out[i:i + TX_PAYLOAD_PER_ARQ_FRAME] for i in range(0, len(data_out), TX_PAYLOAD_PER_ARQ_FRAME)]
|
||||
TX_BUFFER_SIZE = len(static.TX_BUFFER)
|
||||
TX_BUFFER = [data_out[i:i + TX_PAYLOAD_PER_ARQ_FRAME] for i in range(0, len(data_out), TX_PAYLOAD_PER_ARQ_FRAME)]
|
||||
TX_BUFFER_SIZE = len(TX_BUFFER)
|
||||
|
||||
logging.info("ARQ | TX | M:" + str(DATA_CHANNEL_MODE) + " | DATA FRAME --- BYTES: " + str(len(data_out)) + " ARQ FRAMES: " + str(TX_BUFFER_SIZE))
|
||||
|
||||
|
@ -359,8 +329,8 @@ def arq_transmit(data_out):
|
|||
# ----------- CREATE FRAME TOTAL PAYLOAD TO BE ABLE TO CREATE CRC FOR IT
|
||||
try: # DETECT IF LAST BURST TO PREVENT INDEX ERROR OF BUFFER
|
||||
|
||||
for i in range(TX_N_FRAMES_PER_BURST): # Loop through static.TX_BUFFER LIST
|
||||
len(static.TX_BUFFER[TX_N_SENT_FRAMES + i]) # we calculate the length to trigger a list index error
|
||||
for i in range(TX_N_FRAMES_PER_BURST): # Loop through TX_BUFFER LIST
|
||||
len(TX_BUFFER[TX_N_SENT_FRAMES + i]) # we calculate the length to trigger a list index error
|
||||
|
||||
except IndexError: # IF LAST BURST DETECTED BUILD CRC WITH LESS FRAMES AND SET TX_N_FRAMES_PER_BURST TO VALUE OF REST!
|
||||
|
||||
|
@ -377,12 +347,13 @@ def arq_transmit(data_out):
|
|||
for TX_N_RETRIES_PER_BURST in range(TX_N_MAX_RETRIES_PER_BURST):
|
||||
|
||||
if TX_N_SENT_FRAMES + 1 <= TX_BUFFER_SIZE:
|
||||
calculate_transfer_rate()
|
||||
#calculate_transfer_rate()
|
||||
calculate_transfer_rate_tx(TX_N_SENT_FRAMES, TX_PAYLOAD_PER_ARQ_FRAME, TX_START_OF_TRANSMISSION, TX_BUFFER_SIZE)
|
||||
logging.log(24, "ARQ | TX | M:" + str(DATA_CHANNEL_MODE) + " | F:[" + str(TX_N_SENT_FRAMES + 1) + "-" + str(TX_N_SENT_FRAMES + TX_N_FRAMES_PER_BURST) + "] | T:[" + str(TX_N_SENT_FRAMES) + "/" + str(TX_BUFFER_SIZE) + "] [" + str(int(TX_N_SENT_FRAMES / (TX_BUFFER_SIZE) * 100)).zfill(3) + "%] | A:[" + str(TX_N_RETRIES_PER_BURST + 1) + "/" + str(TX_N_MAX_RETRIES_PER_BURST) + "]")
|
||||
|
||||
# lets refresh all timers and ack states before sending a new frame
|
||||
arq_reset_ack(False)
|
||||
#arq_reset_timeout(False)
|
||||
|
||||
|
||||
# ---------------------------BUILD ARQ BURST ---------------------------------------------------------------------
|
||||
tempbuffer = []
|
||||
|
@ -390,10 +361,10 @@ def arq_transmit(data_out):
|
|||
for n in range(0, TX_N_FRAMES_PER_BURST):
|
||||
frame_type = 10 + n + 1
|
||||
frame_type = bytes([frame_type])
|
||||
payload_data = bytes(static.TX_BUFFER[TX_N_SENT_FRAMES + n])
|
||||
payload_data = bytes(TX_BUFFER[TX_N_SENT_FRAMES + n])
|
||||
n_current_arq_frame = TX_N_SENT_FRAMES + n + 1
|
||||
n_current_arq_frame = n_current_arq_frame.to_bytes(2, byteorder='big')
|
||||
n_total_arq_frame = len(static.TX_BUFFER)
|
||||
n_total_arq_frame = len(TX_BUFFER)
|
||||
#static.ARQ_TX_N_TOTAL_ARQ_FRAMES = n_total_arq_frame
|
||||
|
||||
arqframe = frame_type + \
|
||||
|
@ -405,14 +376,14 @@ def arq_transmit(data_out):
|
|||
payload_data
|
||||
|
||||
tempbuffer.append(arqframe)
|
||||
print(tempbuffer)
|
||||
modem.transmit_arq_burst(DATA_CHANNEL_MODE, tempbuffer)
|
||||
|
||||
|
||||
# lets wait during sending. After sending is finished we will continue
|
||||
while static.CHANNEL_STATE == 'SENDING_DATA':
|
||||
while not modem.transmit_arq_burst(DATA_CHANNEL_MODE, tempbuffer):
|
||||
time.sleep(0.01)
|
||||
|
||||
## lets wait during sending. After sending is finished we will continue
|
||||
#while static.CHANNEL_STATE == 'SENDING_DATA':
|
||||
# time.sleep(0.01)
|
||||
|
||||
# --------------------------- START TIMER FOR WAITING FOR ACK ---> IF TIMEOUT REACHED, ACK_TIMEOUT = 1
|
||||
|
||||
logging.debug("ARQ | RX | WAITING FOR BURST ACK")
|
||||
|
@ -437,15 +408,15 @@ def arq_transmit(data_out):
|
|||
frame_type = bytes([frame_type])
|
||||
|
||||
try:
|
||||
payload_data = bytes(static.TX_BUFFER[TX_N_SENT_FRAMES + missing_frame - 1])
|
||||
payload_data = bytes(TX_BUFFER[TX_N_SENT_FRAMES + missing_frame - 1])
|
||||
except:
|
||||
print("modem buffer selection problem with ARQ RPT frames")
|
||||
|
||||
n_current_arq_frame = TX_N_SENT_FRAMES + missing_frame
|
||||
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
|
||||
n_total_arq_frame = len(TX_BUFFER)
|
||||
|
||||
|
||||
arqframe = frame_type + \
|
||||
bytes([TX_N_FRAMES_PER_BURST]) + \
|
||||
|
@ -456,22 +427,21 @@ def arq_transmit(data_out):
|
|||
payload_data
|
||||
|
||||
tempbuffer.append(arqframe)
|
||||
modem.transmit_arq_burst(DATA_CHANNEL_MODE, tempbuffer)
|
||||
|
||||
while not modem.transmit_arq_burst(DATA_CHANNEL_MODE, tempbuffer):
|
||||
time.sleep(0.01)
|
||||
|
||||
# lets wait during sending. After sending is finished we will continue
|
||||
while static.ARQ_STATE == 'SENDING_DATA':
|
||||
time.sleep(0.01)
|
||||
static.CHANNEL_STATE = 'RECEIVING_SIGNALLING'
|
||||
#while static.ARQ_STATE == 'SENDING_DATA':
|
||||
# time.sleep(0.01)
|
||||
#static.CHANNEL_STATE = 'RECEIVING_SIGNALLING'
|
||||
|
||||
arq_reset_timeout(False)
|
||||
arq_reset_ack(False)
|
||||
|
||||
rpttimeout = time.time() + RPT_ACK_TIMEOUT_SECONDS
|
||||
|
||||
while not BURST_ACK_RECEIVED and not DATA_FRAME_ACK_RECEIVED and time.time() < rpttimeout:
|
||||
time.sleep(0.01) # lets reduce CPU load a little bit
|
||||
#logging.info(static.ARQ_STATE)
|
||||
|
||||
if BURST_ACK_RECEIVED:
|
||||
logging.info("ARQ | RX | ACK AFTER RPT")
|
||||
|
@ -486,7 +456,6 @@ def arq_transmit(data_out):
|
|||
|
||||
# the order of ACK check is important! speciall the FRAME ACK after RPT needs to be checked really early!
|
||||
|
||||
|
||||
# --------------- BREAK LOOP IF FRAME ACK HAS BEEN RECEIVED EARLIER AS EXPECTED
|
||||
elif DATA_FRAME_ACK_RECEIVED:
|
||||
logging.info("ARQ | RX | EARLY FRAME ACK RECEIVED #2")
|
||||
|
@ -505,7 +474,7 @@ def arq_transmit(data_out):
|
|||
# -----------IF ACK RECEIVED, INCREMENT ITERATOR FOR MAIN LOOP TO PROCEED WITH NEXT FRAMES/BURST
|
||||
TX_N_SENT_FRAMES = TX_N_SENT_FRAMES + TX_N_FRAMES_PER_BURST
|
||||
|
||||
transfer_rates = calculate_transfer_rate()
|
||||
transfer_rates = calculate_transfer_rate_tx(TX_N_SENT_FRAMES, TX_PAYLOAD_PER_ARQ_FRAME, TX_START_OF_TRANSMISSION, TX_BUFFER_SIZE)
|
||||
logging.info("ARQ | RX | ACK [" + str(transfer_rates[2]) + " bit/s | " + str(transfer_rates[3]) + " B/min]")
|
||||
|
||||
|
||||
|
@ -548,7 +517,14 @@ def arq_transmit(data_out):
|
|||
#logging.info("RATE (DATA/ACK) :[" + str(transfer_rates[0]) + " bit/s | " + str(transfer_rates[1]) + " B/min]")
|
||||
|
||||
logging.info("ARQ | TX | BUFFER EMPTY")
|
||||
arq_reset_frame_machine()
|
||||
# we are doing some cleanup here
|
||||
static.TNC_STATE = 'IDLE'
|
||||
static.ARQ_STATE = 'IDLE'
|
||||
DATA_CHANNEL_READY_FOR_DATA = False
|
||||
#DATA_CHANNEL_LAST_RECEIVED = 0
|
||||
#BURST_ACK_RECEIVED = False
|
||||
#DATA_FRAME_ACK_RECEIVED = False
|
||||
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]<< >>[" + str(static.DXCALLSIGN, 'utf-8') + "] [SNR:" + str(static.SNR) + "]")
|
||||
|
||||
# this should close our thread so we are saving memory...
|
||||
|
@ -597,13 +573,8 @@ def burst_rpt_received(data_in):
|
|||
|
||||
def open_dc_and_transmit(data_out, mode, n_frames_per_burst):
|
||||
global DATA_CHANNEL_READY_FOR_DATA
|
||||
global TX_N_FRAMES_PER_BURST
|
||||
|
||||
if not DATA_CHANNEL_READY_FOR_DATA:
|
||||
# we open the datachannel with the mode, selected from GUI
|
||||
TX_N_FRAMES_PER_BURST = n_frames_per_burst
|
||||
|
||||
asyncio.run(arq_open_data_channel(mode))
|
||||
asyncio.run(arq_open_data_channel(mode))
|
||||
# wait until data channel is open
|
||||
while not DATA_CHANNEL_READY_FOR_DATA:
|
||||
time.sleep(0.01)
|
||||
|
@ -614,20 +585,19 @@ def open_dc_and_transmit(data_out, mode, n_frames_per_burst):
|
|||
pass
|
||||
|
||||
# transmit data
|
||||
arq_transmit(data_out)
|
||||
arq_transmit(data_out, mode, n_frames_per_burst)
|
||||
|
||||
|
||||
async def arq_open_data_channel(mode):
|
||||
|
||||
global DATA_CHANNEL_MODE
|
||||
global DATA_CHANNEL_READY_FOR_DATA
|
||||
global DATA_CHANNEL_LAST_RECEIVED
|
||||
|
||||
DATA_CHANNEL_MAX_RETRIES = 3 # N attempts for connecting to another station
|
||||
|
||||
DATA_CHANNEL_MODE = int(mode)
|
||||
DATA_CHANNEL_LAST_RECEIVED = int(time.time())
|
||||
|
||||
while static.CHANNEL_STATE == 'SENDING_SIGNALLING':
|
||||
time.sleep(0.01)
|
||||
|
||||
connection_frame = bytearray(14)
|
||||
connection_frame[:1] = bytes([225])
|
||||
connection_frame[1:2] = static.DXCALLSIGN_CRC8
|
||||
|
@ -636,29 +606,32 @@ async def arq_open_data_channel(mode):
|
|||
connection_frame[12:13] = bytes([DATA_CHANNEL_MODE])
|
||||
|
||||
while not DATA_CHANNEL_READY_FOR_DATA:
|
||||
for attempt in range(0,DATA_CHANNEL_MAX_RETRIES):
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]>> <<[" + str(static.DXCALLSIGN, 'utf-8') + "] A:[" + str(attempt + 1) + "/" + str(DATA_CHANNEL_MAX_RETRIES) + "]")
|
||||
modem.transmit_signalling(connection_frame, 1)
|
||||
while static.CHANNEL_STATE == 'SENDING_SIGNALLING':
|
||||
time.sleep(0.01)
|
||||
for attempt in range(1,DATA_CHANNEL_MAX_RETRIES+1):
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]>> <<[" + str(static.DXCALLSIGN, 'utf-8') + "] A:[" + str(attempt) + "/" + str(DATA_CHANNEL_MAX_RETRIES) + "]")
|
||||
while not modem.transmit_signalling(connection_frame, 1):
|
||||
time.sleep(0.01)
|
||||
|
||||
timeout = time.time() + 5
|
||||
while time.time() < timeout:
|
||||
time.sleep(0.01)
|
||||
# break if data channel is openend
|
||||
if DATA_CHANNEL_READY_FOR_DATA:
|
||||
break
|
||||
if DATA_CHANNEL_READY_FOR_DATA:
|
||||
break
|
||||
print("attempt:" + str(attempt) + "/" + str(DATA_CHANNEL_MAX_RETRIES))
|
||||
|
||||
if not DATA_CHANNEL_READY_FOR_DATA and attempt + 1 == DATA_CHANNEL_MAX_RETRIES:
|
||||
if not DATA_CHANNEL_READY_FOR_DATA and attempt == DATA_CHANNEL_MAX_RETRIES:
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]>>X<<[" + str(static.DXCALLSIGN, 'utf-8') + "]")
|
||||
arq_reset_frame_machine()
|
||||
sys.exit()
|
||||
static.TNC_STATE = 'IDLE'
|
||||
static.ARQ_STATE = 'IDLE'
|
||||
sys.exit() # close thread and so connection attempts
|
||||
|
||||
|
||||
def arq_received_data_channel_opener(data_in):
|
||||
|
||||
global DATA_CHANNEL_MODE
|
||||
#global DATA_CHANNEL_MODE
|
||||
global DATA_CHANNEL_LAST_RECEIVED
|
||||
|
||||
static.DXCALLSIGN_CRC8 = bytes(data_in[2:3]).rstrip(b'\x00')
|
||||
|
@ -670,7 +643,7 @@ def arq_received_data_channel_opener(data_in):
|
|||
static.ARQ_STATE = 'DATA'
|
||||
static.TNC_STATE = 'BUSY'
|
||||
|
||||
DATA_CHANNEL_MODE = int.from_bytes(bytes(data_in[12:13]), "big")
|
||||
mode = int.from_bytes(bytes(data_in[12:13]), "big")
|
||||
DATA_CHANNEL_LAST_RECEIVED = int(time.time())
|
||||
|
||||
|
||||
|
@ -679,14 +652,14 @@ def arq_received_data_channel_opener(data_in):
|
|||
connection_frame[1:2] = static.DXCALLSIGN_CRC8
|
||||
connection_frame[2:3] = static.MYCALLSIGN_CRC8
|
||||
connection_frame[3:9] = static.MYCALLSIGN
|
||||
connection_frame[12:13] = bytes([DATA_CHANNEL_MODE])
|
||||
connection_frame[12:13] = bytes([mode])
|
||||
|
||||
modem.transmit_signalling(connection_frame, 2)
|
||||
|
||||
while static.CHANNEL_STATE == 'SENDING_SIGNALLING':
|
||||
while not modem.transmit_signalling(connection_frame, 2):
|
||||
time.sleep(0.01)
|
||||
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]>>|<<[" + str(static.DXCALLSIGN, 'utf-8') + "] [SNR:" + str(static.SNR) + "]")
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]>>|<<[" + str(static.DXCALLSIGN, 'utf-8') + "] [M:"+str(mode)+"] SNR:" + str(static.SNR) + "]")
|
||||
|
||||
wait_until_receive_data = time.time() + 1
|
||||
while time.time() < wait_until_receive_data:
|
||||
|
@ -699,6 +672,7 @@ def arq_received_channel_is_open(data_in):
|
|||
|
||||
global DATA_CHANNEL_LAST_RECEIVED
|
||||
global DATA_CHANNEL_READY_FOR_DATA
|
||||
global DATA_CHANNEL_MODE
|
||||
|
||||
static.DXCALLSIGN_CRC8 = bytes(data_in[2:3]).rstrip(b'\x00')
|
||||
static.DXCALLSIGN = bytes(data_in[3:9]).rstrip(b'\x00')
|
||||
|
@ -716,7 +690,9 @@ def arq_received_channel_is_open(data_in):
|
|||
DATA_CHANNEL_LAST_RECEIVED = int(time.time())
|
||||
else:
|
||||
print("wrong mode received...")
|
||||
|
||||
static.ARQ_STATE = 'DATA'
|
||||
DATA_CHANNEL_READY_FOR_DATA = True
|
||||
DATA_CHANNEL_LAST_RECEIVED = int(time.time())
|
||||
|
||||
# ############################################################################################################
|
||||
# PING HANDLER
|
||||
|
@ -734,8 +710,7 @@ def transmit_ping(callsign):
|
|||
ping_frame[3:9] = static.MYCALLSIGN
|
||||
|
||||
# wait while sending....
|
||||
modem.transmit_signalling(ping_frame, 1)
|
||||
while static.CHANNEL_STATE == 'SENDING_SIGNALLING':
|
||||
while not modem.transmit_signalling(ping_frame, 1):
|
||||
time.sleep(0.01)
|
||||
|
||||
|
||||
|
@ -753,9 +728,7 @@ def received_ping(data_in):
|
|||
ping_frame[3:9] = static.MYGRID
|
||||
|
||||
# wait while sending....
|
||||
modem.transmit_signalling(ping_frame, 1)
|
||||
|
||||
while static.CHANNEL_STATE == 'SENDING_SIGNALLING':
|
||||
while not modem.transmit_signalling(ping_frame, 1):
|
||||
time.sleep(0.01)
|
||||
|
||||
|
||||
|
@ -796,18 +769,6 @@ def received_cq(data_in):
|
|||
helpers.add_to_heard_stations(dxcallsign,dxgrid, 'CQ CQ CQ', static.SNR)
|
||||
|
||||
|
||||
def arq_reset_timeout(state):
|
||||
"""
|
||||
Author: DJ2LS
|
||||
"""
|
||||
#global BURST_ACK_TIMEOUT
|
||||
#global DATA_FRAME_ACK_TIMEOUT
|
||||
global RPT_ACK_TIMEOUT
|
||||
|
||||
#BURST_ACK_TIMEOUT = state
|
||||
#DATA_FRAME_ACK_TIMEOUT = state
|
||||
RPT_ACK_TIMEOUT = state
|
||||
|
||||
def arq_reset_ack(state):
|
||||
"""
|
||||
Author: DJ2LS
|
||||
|
@ -821,145 +782,92 @@ def arq_reset_ack(state):
|
|||
DATA_FRAME_ACK_RECEIVED = state
|
||||
|
||||
|
||||
def arq_reset_frame_machine():
|
||||
"""
|
||||
Author: DJ2LS
|
||||
def calculate_transfer_rate_rx(rx_n_frames_per_data_frame, rx_n_frame_of_data_frame, rx_start_of_transmission, rx_payload_per_arq_frame):
|
||||
try:
|
||||
static.ARQ_TRANSMISSION_PERCENT = int((rx_n_frame_of_data_frame / rx_n_frames_per_data_frame) * 100)
|
||||
|
||||
Reset the frame machine parameters to default,
|
||||
so we need to call just a function
|
||||
|
||||
"""
|
||||
global DATA_CHANNEL_READY_FOR_DATA
|
||||
global DATA_CHANNEL_LAST_RECEIVED
|
||||
global DATA_CHANNEL_MODE
|
||||
|
||||
global BURST_ACK_RECEIVED
|
||||
global DATA_FRAME_ACK_RECEIVED
|
||||
global RPT_REQUEST_RECEIVED
|
||||
global RPT_REQUEST_BUFFER
|
||||
|
||||
|
||||
# global BURST_ACK_TIMEOUT
|
||||
# global DATA_FRAME_ACK_TIMEOUT
|
||||
global RPT_ACK_TIMEOUT
|
||||
|
||||
global RX_START_OF_TRANSMISSION
|
||||
global RX_START_OF_BURST
|
||||
global RX_PAYLOAD_PER_MODEM_FRAME
|
||||
global RX_PAYLOAD_PER_ARQ_FRAME
|
||||
global RX_N_FRAME_OF_BURST
|
||||
global RX_N_FRAMES_PER_BURST
|
||||
global RX_N_FRAME_OF_DATA_FRAME
|
||||
global RX_N_FRAMES_PER_DATA_FRAME
|
||||
global RX_FRAME_BOF_RECEIVED
|
||||
global RX_FRAME_EOF_RECEIVED
|
||||
#global static.RX_FRAME_BUFFER
|
||||
|
||||
global TX_PAYLOAD_PER_MODEM_FRAME
|
||||
global TX_PAYLOAD_PER_ARQ_FRAME
|
||||
global TX_BUFFER_SIZE
|
||||
global TX_N_SENT_FRAMES
|
||||
global TX_N_FRAMES_PER_BURST
|
||||
global TX_N_RETRIES_PER_BURST
|
||||
global TX_START_OF_TRANSMISSION
|
||||
|
||||
DATA_CHANNEL_READY_FOR_DATA = False
|
||||
DATA_CHANNEL_LAST_RECEIVED = 0.0
|
||||
DATA_CHANNEL_MODE = 0
|
||||
|
||||
BURST_ACK_RECEIVED = False
|
||||
DATA_FRAME_ACK_RECEIVED = False
|
||||
RPT_REQUEST_RECEIVED = False
|
||||
RPT_REQUEST_BUFFER = []
|
||||
|
||||
#BURST_ACK_TIMEOUT = False
|
||||
#DATA_FRAME_ACK_TIMEOUT = False
|
||||
RPT_ACK_TIMEOUT = False
|
||||
|
||||
RX_START_OF_TRANSMISSION = 0
|
||||
RX_START_OF_BURST = 0
|
||||
RX_PAYLOAD_PER_MODEM_FRAME = 0
|
||||
RX_PAYLOAD_PER_ARQ_FRAME = 0
|
||||
RX_N_FRAME_OF_BURST = 0
|
||||
RX_N_FRAMES_PER_BURST = 0
|
||||
RX_N_FRAME_OF_DATA_FRAME = 0
|
||||
RX_N_FRAMES_PER_DATA_FRAME = 0
|
||||
RX_FRAME_BOF_RECEIVED = False
|
||||
RX_FRAME_EOF_RECEIVED = False
|
||||
|
||||
# MODULE GLOBALS TX
|
||||
TX_PAYLOAD_PER_MODEM_FRAME = 0
|
||||
TX_PAYLOAD_PER_ARQ_FRAME = 0
|
||||
#static.TX_BUFFER = [] # buffer for sending data
|
||||
TX_BUFFER_SIZE = 0
|
||||
TX_N_SENT_FRAMES = 0
|
||||
TX_N_FRAMES_PER_BURST = 0
|
||||
TX_N_RETRIES_PER_BURST = 0
|
||||
TX_START_OF_TRANSMISSION = 0
|
||||
|
||||
arq_reset_timeout(False)
|
||||
arq_reset_ack(False)
|
||||
|
||||
static.RX_BURST_BUFFER = []
|
||||
static.RX_FRAME_BUFFER = []
|
||||
|
||||
static.TNC_STATE = 'IDLE'
|
||||
static.ARQ_STATE = 'IDLE'
|
||||
static.CHANNEL_STATE = 'RECEIVING_SIGNALLING'
|
||||
|
||||
|
||||
|
||||
def calculate_transfer_rate():
|
||||
global TX_N_SENT_FRAMES
|
||||
global RX_N_FRAMES_PER_DATA_FRAME
|
||||
global RX_N_FRAME_OF_DATA_FRAME
|
||||
global RX_N_FRAME_OF_DATA_FRAME
|
||||
global RX_START_OF_TRANSMISSION
|
||||
global TX_START_OF_TRANSMISSION
|
||||
global DATA_CHANNEL_LAST_RECEIVED
|
||||
global TX_PAYLOAD_PER_ARQ_FRAME
|
||||
global RX_PAYLOAD_PER_ARQ_FRAME
|
||||
|
||||
# CALCULATION FOR TRANSMITTING
|
||||
if len(static.TX_BUFFER) > 0:
|
||||
static.ARQ_TRANSMISSION_PERCENT = int((TX_N_SENT_FRAMES / len(static.TX_BUFFER)) * 100)
|
||||
|
||||
transmissiontime = DATA_CHANNEL_LAST_RECEIVED - TX_START_OF_TRANSMISSION
|
||||
if TX_N_SENT_FRAMES > 0:
|
||||
sendbytes = TX_N_SENT_FRAMES * TX_PAYLOAD_PER_ARQ_FRAME
|
||||
|
||||
static.ARQ_BITS_PER_SECOND = (sendbytes*8) / transmissiontime
|
||||
static.ARQ_BYTES_PER_MINUTE = int((sendbytes) / (transmissiontime/60))
|
||||
|
||||
else:
|
||||
|
||||
|
||||
static.ARQ_BITS_PER_SECOND = 0
|
||||
static.ARQ_BYTES_PER_MINUTE = 0
|
||||
|
||||
|
||||
|
||||
# CALCULATION FOR RECEIVING
|
||||
elif RX_N_FRAMES_PER_DATA_FRAME > 0:
|
||||
static.ARQ_TRANSMISSION_PERCENT = int((RX_N_FRAME_OF_DATA_FRAME / RX_N_FRAMES_PER_DATA_FRAME) * 100)
|
||||
|
||||
transmissiontime = time.time() - RX_START_OF_TRANSMISSION
|
||||
receivedbytes = RX_N_FRAME_OF_DATA_FRAME * RX_PAYLOAD_PER_ARQ_FRAME
|
||||
transmissiontime = time.time() - rx_start_of_transmission
|
||||
receivedbytes = rx_n_frame_of_data_frame * rx_payload_per_arq_frame
|
||||
|
||||
static.ARQ_BITS_PER_SECOND = int((receivedbytes*8) / transmissiontime)
|
||||
static.ARQ_BYTES_PER_MINUTE = int((receivedbytes) / (transmissiontime/60))
|
||||
|
||||
else:
|
||||
except:
|
||||
static.ARQ_TRANSMISSION_PERCENT = 0.0
|
||||
static.ARQ_BITS_PER_SECOND = 0
|
||||
static.ARQ_BYTES_PER_MINUTE = 0
|
||||
static.ARQ_BITS_PER_SECOND_BURST = 0
|
||||
static.ARQ_BYTES_PER_MINUTE_BURST = 0
|
||||
|
||||
return [static.ARQ_BITS_PER_SECOND, \
|
||||
static.ARQ_BYTES_PER_MINUTE, \
|
||||
static.ARQ_BITS_PER_SECOND_BURST, \
|
||||
static.ARQ_BYTES_PER_MINUTE_BURST, \
|
||||
static.ARQ_TRANSMISSION_PERCENT]
|
||||
|
||||
|
||||
|
||||
|
||||
def calculate_transfer_rate_tx(tx_n_sent_frames, tx_payload_per_arq_frame, tx_start_of_transmission, tx_buffer_length):
|
||||
try:
|
||||
static.ARQ_TRANSMISSION_PERCENT = int((tx_n_sent_frames / tx_buffer_length) * 100)
|
||||
|
||||
transmissiontime = time.time() - tx_start_of_transmission
|
||||
if tx_n_sent_frames > 0:
|
||||
sendbytes = tx_n_sent_frames * tx_payload_per_arq_frame
|
||||
|
||||
static.ARQ_BITS_PER_SECOND = (sendbytes*8) / transmissiontime
|
||||
static.ARQ_BYTES_PER_MINUTE = int((sendbytes) / (transmissiontime/60))
|
||||
|
||||
else:
|
||||
static.ARQ_BITS_PER_SECOND = 0
|
||||
static.ARQ_BYTES_PER_MINUTE = 0
|
||||
|
||||
except:
|
||||
static.ARQ_TRANSMISSION_PERCENT = 0.0
|
||||
static.ARQ_BITS_PER_SECOND = 0
|
||||
static.ARQ_BYTES_PER_MINUTE = 0
|
||||
static.ARQ_BITS_PER_SECOND_BURST = 0
|
||||
static.ARQ_BYTES_PER_MINUTE_BURST = 0
|
||||
|
||||
return [static.ARQ_BITS_PER_SECOND, \
|
||||
static.ARQ_BYTES_PER_MINUTE, \
|
||||
static.ARQ_BITS_PER_SECOND_BURST, \
|
||||
static.ARQ_BYTES_PER_MINUTE_BURST, \
|
||||
static.ARQ_TRANSMISSION_PERCENT]
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
return [static.ARQ_BITS_PER_SECOND, static.ARQ_BYTES_PER_MINUTE, static.ARQ_BITS_PER_SECOND_BURST, static.ARQ_BYTES_PER_MINUTE_BURST, static.ARQ_TRANSMISSION_PERCENT]
|
||||
|
||||
|
||||
# WATCHDOG FUNCTIONS
|
||||
|
@ -990,8 +898,9 @@ def data_channel_keep_alive_watchdog():
|
|||
else:
|
||||
DATA_CHANNEL_LAST_RECEIVED = 0
|
||||
logging.info("DATA [" + str(static.MYCALLSIGN, 'utf-8') + "]<<T>>[" + str(static.DXCALLSIGN, 'utf-8') + "] [BER." + str(static.BER) + "]")
|
||||
arq_reset_frame_machine()
|
||||
|
||||
#arq_reset_frame_machine()
|
||||
static.TNC_STATE = 'IDLE'
|
||||
static.ARQ_STATE = 'IDLE'
|
||||
|
||||
# START THE THREAD FOR THE TIMEOUT WATCHDOG
|
||||
WATCHDOG_SERVER_THREAD = threading.Thread(target=watchdog, name="watchdog")
|
||||
|
@ -1002,3 +911,4 @@ WATCHDOG_SERVER_THREAD.start()
|
|||
|
||||
|
||||
|
||||
|
||||
|
|
19
tnc/modem.py
19
tnc/modem.py
|
@ -224,9 +224,10 @@ class RF():
|
|||
state_before_transmit = static.CHANNEL_STATE
|
||||
static.CHANNEL_STATE = 'SENDING_SIGNALLING'
|
||||
# print(static.CHANNEL_STATE)
|
||||
freedv_signalling_mode = 14
|
||||
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
freedv = self.c_lib.freedv_open(static.FREEDV_SIGNALLING_MODE)
|
||||
freedv = self.c_lib.freedv_open(freedv_signalling_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)
|
||||
|
@ -287,6 +288,7 @@ class RF():
|
|||
|
||||
self.c_lib.freedv_close(freedv)
|
||||
|
||||
return True
|
||||
# --------------------------------------------------------------------------------------------------------
|
||||
# GET ARQ BURST FRAME VOM BUFFER AND MODULATE IT
|
||||
|
||||
|
@ -369,13 +371,19 @@ class RF():
|
|||
|
||||
# close codec2 instance
|
||||
self.c_lib.freedv_close(freedv)
|
||||
|
||||
return True
|
||||
# --------------------------------------------------------------------------------------------------------
|
||||
|
||||
def receive(self):
|
||||
|
||||
freedv_mode_datac0 = 14
|
||||
freedv_mode_datac1 = 10
|
||||
freedv_mode_datac3 = 12
|
||||
|
||||
# DATAC0
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
datac0_freedv = self.c_lib.freedv_open(14)
|
||||
datac0_freedv = self.c_lib.freedv_open(freedv_mode_datac0)
|
||||
self.c_lib.freedv_get_bits_per_modem_frame(datac0_freedv)
|
||||
datac0_bytes_per_frame = int(self.c_lib.freedv_get_bits_per_modem_frame(datac0_freedv)/8)
|
||||
datac0_n_max_modem_samples = self.c_lib.freedv_get_n_max_modem_samples(datac0_freedv)
|
||||
|
@ -394,7 +402,7 @@ class RF():
|
|||
|
||||
# DATAC1
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
datac1_freedv = self.c_lib.freedv_open(10)
|
||||
datac1_freedv = self.c_lib.freedv_open(freedv_mode_datac1)
|
||||
datac1_bytes_per_frame = int(self.c_lib.freedv_get_bits_per_modem_frame(datac1_freedv)/8)
|
||||
datac1_n_max_modem_samples = self.c_lib.freedv_get_n_max_modem_samples(datac1_freedv)
|
||||
# bytes_per_frame
|
||||
|
@ -407,7 +415,7 @@ class RF():
|
|||
|
||||
# DATAC3
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
datac3_freedv = self.c_lib.freedv_open(12)
|
||||
datac3_freedv = self.c_lib.freedv_open(freedv_mode_datac3)
|
||||
datac3_bytes_per_frame = int(self.c_lib.freedv_get_bits_per_modem_frame(datac3_freedv)/8)
|
||||
datac3_n_max_modem_samples = self.c_lib.freedv_get_n_max_modem_samples(datac3_freedv)
|
||||
# bytes_per_frame
|
||||
|
@ -429,7 +437,7 @@ class RF():
|
|||
self.c_lib.freedv_set_frames_per_burst(freedv, 0)
|
||||
'''
|
||||
|
||||
while static.FREEDV_RECEIVE == True:
|
||||
while True:
|
||||
|
||||
'''
|
||||
# refresh vars, so the correct parameters of the used mode are set
|
||||
|
@ -687,3 +695,4 @@ class RF():
|
|||
print("setting fft = 0")
|
||||
# else 0
|
||||
static.FFT = [0] * 400
|
||||
|
||||
|
|
|
@ -270,3 +270,4 @@ def start_cmd_socket():
|
|||
exc_type, exc_obj, exc_tb = sys.exc_info()
|
||||
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
|
||||
print(exc_type, fname, exc_tb.tb_lineno)
|
||||
|
||||
|
|
|
@ -4,6 +4,8 @@
|
|||
Created on Wed Dec 23 11:13:57 2020
|
||||
|
||||
@author: DJ2LS
|
||||
Here we are saving application wide variables and stats, which have to be accessed everywhere.
|
||||
Not nice, tipps are appreciated :-)
|
||||
"""
|
||||
|
||||
# DAEMON
|
||||
|
@ -44,14 +46,6 @@ HAMLIB_MODE = ''
|
|||
HAMLIB_BANDWITH = 0
|
||||
# -------------------------
|
||||
# FreeDV Defaults
|
||||
FREEDV_RECEIVE = True
|
||||
|
||||
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
|
||||
|
||||
BER = 0
|
||||
SNR = 0
|
||||
|
@ -80,10 +74,11 @@ ARQ_BITS_PER_SECOND = 0
|
|||
ARQ_TRANSMISSION_PERCENT = 0
|
||||
TOTAL_BYTES = 0
|
||||
|
||||
CHANNEL_STATE = 'RECEIVING_SIGNALLING'
|
||||
TNC_STATE = 'IDLE'
|
||||
ARQ_STATE = 'IDLE'
|
||||
|
||||
|
||||
# ------- TX BUFFER
|
||||
#TX_BUFFER_SIZE = 0
|
||||
TX_BUFFER = []
|
||||
# ------- RX BUFFER
|
||||
RX_BUFFER = []
|
||||
RX_BURST_BUFFER = []
|
||||
|
|
Loading…
Reference in a new issue