class sqnsupgrade:
global sysname
def __init__(self):
self.__sysname = sysname
self.__pins = None
self.__connected = False
self.__sdpath = None
self.__resp_921600 = False
self.__serial = None
self.__kill_ppp_ok = False
if 'GPy' in self.__sysname:
self.__pins = ('P5', 'P98', 'P7', 'P99')
else:
self.__pins = ('P20', 'P18', 'P19', 'P17')
def special_print(self, msg, flush=None, end='\n'):
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
print(msg, end=end)
else:
print(msg, flush=flush, end=end)
def read_rsp(self, size=None, timeout=-1):
if timeout < 0:
timeout = 20000
elif timeout is None:
timeout = 0
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
while not self.__serial.any() and timeout > 0:
time.sleep_ms(1)
timeout -= 1
else:
while self.__serial.in_waiting <= 0 and timeout > 0:
time.sleep(0.001)
timeout -= 1
if size is not None:
rsp = self.__serial.read(size)
else:
rsp = self.__serial.read()
if rsp is not None:
return rsp
else:
return b''
def print_pretty_response(self, rsp, flush=False):
lines = rsp.decode('ascii').split('\r\n')
for line in lines:
if 'OK' not in line and line != '':
self.special_print(line, flush=flush)
def return_pretty_response(self, rsp):
ret_str = ''
lines = rsp.decode('ascii').split('\r\n')
for line in lines:
if 'OK' not in line:
ret_str += line
return ret_str
def return_upgrade_response(self, rsp):
pretty = self.return_pretty_response(rsp)
if "+SMUPGRADE:" in pretty:
try:
return pretty.split(':')[1].strip()
except:
pass
return None
def return_code(self, rsp, debug=False):
ret_str = b''
lines = rsp.decode('ascii').split('\r\n')
for line in lines:
if 'OK' not in line and len(line) > 0:
try:
if debug:
print('Converting response: {} to int...'.format(line))
return int(line)
except:
pass
raise OSError('Could not decode modem state')
def wait_for_modem(self, send=True, expected=b'OK', echo_char=None):
rsp = b''
start = time.time()
while True:
if send:
self.__serial.write(b"AT\r\n")
r = self.read_rsp(size=(len(expected) + 4), timeout=50)
if r:
rsp += r
if expected in rsp:
if echo_char is not None:
print()
break
else:
if echo_char is not None:
self.special_print(echo_char, end='', flush=True)
time.sleep(0.5)
if time.time() - start >= 300:
raise OSError('Timeout waiting for modem to respond!')
def __check_file(self, file_path, debug=False):
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
if file_path[
0] == '/' and not 'flash' in file_path and not file_path.split(
'/')[1] in os.listdir('/'):
if self.__sdpath is None:
self.__sdpath = file_path.split('/')[1]
try:
sd = SD()
time.sleep(0.5)
os.mount(sd, '/{}'.format(self.__sdpath))
except Exception as ex:
print('Unable to mount SD card!')
return False
else:
print('SD card already mounted on {}!'.format(
self.__sdpath))
return False
try:
size = os.stat(file_path)[6]
if debug: print('File {} has size {}'.format(file_path, size))
return True
except Exception as ex:
print('Exception when checking file {}... wrong file name?'.format(
file_path))
print('{}'.format(ex))
return False
return False
def check_files(self, ffile, mfile=None, debug=False):
if mfile is not None:
if self.__check_file(mfile, debug):
return self.__check_file(ffile, debug)
else:
return False
else:
return self.__check_file(ffile, debug)
def __check_resp(self, resp, kill_ppp=False):
if resp is not None:
self.__resp_921600 = b'OK' in resp or b'ERROR' in resp
self.__kill_ppp_ok = self.__kill_ppp_ok or (kill_ppp
and b'OK' in resp)
def __hangup_modem(self, delay, debug):
self.__serial.read()
if not self.__kill_ppp_ok:
self.__serial.write(b"+++")
time.sleep_ms(1150)
resp = self.__serial.read()
if debug: print('Response (+++ #1): {}'.format(resp))
self.__check_resp(resp, True)
self.__serial.write(b"AT\r\n")
time.sleep_ms(250)
resp = self.__serial.read()
if debug: print('Response (AT #1) {}'.format(resp))
self.__check_resp(resp)
if resp is not None:
if b'OK' not in resp and not self.__kill_ppp_ok:
self.__serial.write(b"AT\r\n")
time.sleep_ms(250)
resp = self.__serial.read()
if debug: print('Response (AT #2) {}'.format(resp))
self.__check_resp(resp)
if resp is not None and b'OK' in resp:
return True
self.__serial.write(b"+++")
time.sleep_ms(1150)
resp = self.__serial.read()
if debug: print('Response (+++ #2): {}'.format(resp))
self.__check_resp(resp, True)
if resp is not None and b'OK' in resp:
self.__serial.write(b"AT\r\n")
time.sleep_ms(250)
resp = self.__serial.read()
if debug: print('Response (AT #2) {}'.format(resp))
self.__check_resp(resp)
if resp is not None and b'OK' in resp:
return True
return False
def detect_modem_state(self, retry=3, initial_delay=1000, debug=False):
count = 0
self.__serial = UART(1,
baudrate=921600,
pins=self.__pins,
timeout_chars=1)
self.__serial.read()
while count < retry:
count += 1
delay = initial_delay * count
if debug: print("The current delay is {}".format(delay))
self.__serial = UART(1,
baudrate=921600,
pins=self.__pins,
timeout_chars=10)
#if True:
if self.__hangup_modem(initial_delay, debug):
self.__serial.write(b"AT+SMOD?\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
if debug: print('Response (AT+SMOD?) {}'.format(resp))
try:
return self.return_code(resp, debug)
except:
pass
else:
self.__serial = UART(1,
baudrate=921600,
pins=self.__pins,
timeout_chars=1)
self.__serial.read()
self.__serial.write(b"AT\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
self.__check_resp(resp)
if debug: print('Response (AT #3) {}'.format(resp))
if resp is not None and b'OK' in resp:
self.__serial.write(b"AT+SMOD?\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
try:
if debug: print('Response (AT+SMOD?) {}'.format(resp))
return self.return_code(resp, debug)
except:
pass
self.__serial.write(b"AT\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
self.__check_resp(resp)
if debug: print('Response (AT #4) {}'.format(resp))
if resp is not None and b'OK' in resp:
self.__serial.write(b"AT+SMOD?\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
try:
return self.return_code(resp, debug)
if debug: print('Response (AT+SMOD?) {}'.format(resp))
except:
pass
else:
if not self.__resp_921600:
self.__serial = UART(1,
baudrate=115200,
pins=self.__pins,
timeout_chars=10)
self.__serial.write(b"AT\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
if debug:
print('Response (AT #1 @ 115200) {}'.format(resp))
if resp is not None and b'OK' in resp:
self.__serial.write(b"AT+SMOD?\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
try:
if debug:
print(
'Response (AT+SMOD?) {}'.format(resp))
return self.return_code(resp, debug)
except:
pass
self.__serial.write(b"AT\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
if debug:
print('Response (AT #2 @ 115200) {}'.format(resp))
if resp is not None and b'OK' in resp:
self.__serial.write(b"AT+SMOD?\r\n")
time.sleep_ms(delay)
resp = self.__serial.read()
try:
if debug:
print(
'Response (AT+SMOD?) {}'.format(resp))
return self.return_code(resp, debug)
except:
pass
return None
def __get_power_warning(self):
return "<<<=== DO NOT DISCONNECT POWER ===>>>"
def __get_wait_msg(self, load_fff=True):
if not self.__wait_msg:
self.__wait_msg = True
if load_fff:
return "Waiting for modem to finish the update...\nThis might take several minutes!\n" + self.__get_power_warning(
)
else:
return "Waiting for modem to finish the update...\n" + self.__get_power_warning(
)
return None
def __run(self,
file_path=None,
baudrate=921600,
port=None,
resume=False,
load_ffh=False,
mirror=False,
switch_ffh=False,
bootrom=False,
rgbled=0x050505,
debug=False,
pkgdebug=False,
atneg=True,
max_try=10,
direct=True,
atneg_only=False,
version_only=False,
expected_smod=None,
verbose=False,
load_fff=False):
self.__wait_msg = False
mirror = True if atneg_only else mirror
recover = True if atneg_only else load_ffh
resume = True if mirror or recover or atneg_only or version_only else resume
verbose = True if debug else verbose
load_fff = False if bootrom and switch_ffh else load_fff
if debug:
print(
'mirror? {} recover? {} resume? {} direct? {} atneg_only? {} bootrom? {} load_fff? {}'
.format(mirror, recover, resume, direct, atneg_only, bootrom,
load_fff))
abort = True
external = False
self.__serial = None
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
self.__serial = UART(1,
baudrate=115200 if recover else baudrate,
pins=self.__pins,
timeout_chars=100)
self.__serial.read()
else:
if port is None:
raise ValueError('serial port not specified')
if debug: print('Setting port {}'.format(port))
external = True
br = 115200 if recover and not direct else baudrate
if debug: print('Setting baudrate to {}'.format(br))
self.__serial = serial.Serial(port,
br,
bytesize=serial.EIGHTBITS,
timeout=1 if version_only else 0.1)
self.__serial.reset_input_buffer()
self.__serial.reset_output_buffer()
if version_only:
self.__serial.read()
self.__serial.write(b'AT\r\n')
self.__serial.write(b'AT\r\n')
self.__serial.read()
if verbose:
self.__serial.write(b"AT!=\"showver\"\r\n")
else:
self.__serial.write(b"ATI1\r\n")
time.sleep(.5)
shver = self.read_rsp(2000)
if shver is not None:
self.print_pretty_response(shver)
return True
if debug: print('Initial prepartion complete...')
if not mirror:
if bootrom:
if debug: print('Loading built-in recovery bootrom...')
try:
# try compressed bootrom first
from sqnsbrz import bootrom
except:
# fallback to uncompressed
from sqnsbr import bootrom
blob = bootrom()
blobsize = blob.get_size()
else:
if debug: print('Loading {}'.format(file_path))
blobsize = os.stat(file_path)[6]
if blobsize < 128:
print('Firmware file is too small!')
reconnect_uart()
sys.exit(1)
if blobsize > 4194304:
if load_fff:
print(
"Firmware file is too big to load via FFF method. Using ON_THE_FLY"
)
load_fff = False
blob = open(file_path, "rb")
if not load_ffh:
if not self.wakeup_modem(baudrate, port, 10, 1, debug):
return False
if not resume:
# disable echo
self.__serial.write(b"ATE0\r\n")
response = self.read_rsp(size=6)
self.__serial.read(100)
if debug: print('Entering upgrade mode...')
self.__serial.write(b"AT+SMOD?\r\n")
response = self.return_pretty_response(self.read_rsp(size=7))
self.__serial.read(100)
if debug: print("AT+SMOD? returned {}".format(response))
self.__serial.write(b"AT+SQNSUPGRADENTF=\"started\"\r\n")
self.wait_for_modem()
if not load_fff:
self.__serial.write(b"AT+SMSWBOOT=3,1\r\n")
resp = self.read_rsp(100)
if debug: print('AT+SMSWBOOT=3,1 returned: {}'.format(resp))
if b'ERROR' in resp:
time.sleep(5)
self.__serial.write(b"AT+SMSWBOOT=3,0\r\n")
resp = self.read_rsp(100)
if debug:
print('AT+SMSWBOOT=3,0 returned: {}'.format(resp))
if b'OK' in resp:
self.__serial.write(b"AT^RESET\r\n")
resp = self.read_rsp(100)
if debug: print('AT^RESET returned: {}'.format(resp))
else:
print('Received ERROR from AT+SMSWBOOT=3,1! Aborting!')
reconnect_uart()
sys.exit(1)
time.sleep(3)
resp = self.__serial.read()
if debug: print("Response after reset: {}".format(resp))
self.wait_for_modem()
self.__serial.write(b"AT\r\n")
else:
self.__serial.read(100)
if debug: print('Entering recovery mode')
self.__serial.write(b"AT+SMOD?\r\n")
response = self.return_pretty_response(self.read_rsp(size=7))
self.__serial.read(100)
if debug: print("AT+SMOD? returned {}".format(response))
time.sleep(1)
self.__serial.read()
if (not recover) and (not direct):
if mirror:
time.sleep(.5)
self.__serial.read(100)
print(
'Going into MIRROR mode... please close this terminal to resume the upgrade via UART'
)
self.uart_mirror(rgbled)
elif bootrom:
if verbose: print('Starting STP')
else:
if verbose:
if load_fff:
print('Starting STP [FFF]')
else:
print('Starting STP ON_THE_FLY')
self.__serial.read(100)
if verbose: print("Sending AT+CFUN=4")
resonse = self.__serial.write(b'AT+CFUN=4\r\n')
if verbose: print("AT+CFUN=4 returned {}".format(response))
self.__serial.read(100)
if load_fff:
if debug: print("Sending AT+SMSTPU")
self.__serial.write(b'AT+SMSTPU\r\n')
else:
if debug: print("Sending AT+SMSTPU=\"ON_THE_FLY\"")
self.__serial.write(b'AT+SMSTPU=\"ON_THE_FLY\"\r\n')
response = self.read_rsp(size=4)
if response != b'OK\r\n' and response != b'\r\nOK' and response != b'\nOK':
raise OSError("Invalid answer '%s' from the device" % response)
blob.close()
self.__serial.read()
elif recover and (not direct):
if atneg:
result = self.at_negotiation(baudrate, port, max_try, mirror,
atneg_only, debug)
if result:
if atneg_only:
return True
if mirror:
time.sleep(.5)
self.__serial.read(100)
print(
'Going into MIRROR mode... please close this terminal to resume the upgrade via UART'
)
self.uart_mirror(rgbled)
else:
self.__serial.write(b"AT+STP\n")
response = self.read_rsp(size=6)
if not b'OK' in response:
print('Failed to start STP mode!')
reconnect_uart()
sys.exit(1)
else:
print('AT auto-negotiation failed! Exiting.')
return False
else:
if debug: print('Starting STP mode...')
self.__serial.write(b"AT+STP\n")
response = self.read_rsp(size=6)
if not b'OK' in response:
print('Failed to start STP mode!')
reconnect_uart()
sys.exit(1)
try:
if debug:
if verbose: print('Starting STP code upload')
if stp.start(blob,
blobsize,
self.__serial,
baudrate,
AT=False,
debug=debug,
pkgdebug=pkgdebug):
blob.close()
self.__serial.read()
if switch_ffh:
if verbose:
print(
'Bootrom updated successfully, switching to recovery mode'
)
abort = False
elif load_ffh:
if not self.wakeup_modem(baudrate, port, 100, 1, debug,
'Waiting for updater to load...'):
return False
if verbose:
print(
'Upgrader loaded successfully, modem is in update mode'
)
return True
else:
if verbose:
print('Code download done, returning to user mode')
abort = recover
else:
blob.close()
print('Code download failed, aborting!')
return False
except:
blob.close()
print('Code download failed, aborting!')
abort = True
time.sleep(1.5)
if not abort:
self.__serial.read()
if switch_ffh:
self.__serial.write(b"AT+SMSWBOOT=0,1\r\n")
resp = self.read_rsp(100)
if debug: print("AT+SMSWBOOT=0,1 returned {}".format(resp))
if b"ERROR" in resp:
time.sleep(5)
self.__serial.write(b"AT+SMSWBOOT=0,0\r\n")
resp = self.read_rsp(100)
if debug:
print('AT+SMSWBOOT=0,0 returned: {}'.format(resp))
if b'OK' in resp:
self.__serial.write(b"AT^RESET\r\n")
resp = self.read_rsp(100)
if debug: print('AT^RESET returned: {}'.format(resp))
return True
else:
print('Received ERROR from AT+SMSWBOOT=0,0! Aborting!')
return False
return True
else:
if load_fff:
self.__serial.write(b"AT+SMUPGRADE\r\n")
if not self.wakeup_modem(
baudrate, port, 100, 1, debug,
self.__get_wait_msg(load_fff=load_fff)):
print(
"Timeout while waiting for modem to finish updating!")
reconnect_uart()
sys.exit(1)
start = time.time()
while True:
self.__serial.read()
self.__serial.write(b"AT+SMUPGRADE?\r\n")
resp = self.read_rsp(1024)
if debug:
print("AT+SMUPGRADE? returned {} [timeout: {}]".format(
resp,
time.time() - start))
if resp == b'\x00' or resp == b'':
time.sleep(2)
if b'No report' in resp or b'on-going' in resp:
time.sleep(1)
if b'success' in resp or b'fail' in resp:
break
if time.time() - start >= 300:
raise OSError('Timeout waiting for modem to respond!')
self.__serial.write(b"AT+SMSWBOOT?\r\n")
resp = self.read_rsp(100)
if debug: print("AT+SMSWBOOT? returned {}".format(resp))
start = time.time()
while (b"RECOVERY"
not in resp) and (b"FFH" not in resp) and (b"FFF"
not in resp):
if debug: print("Timeout: {}".format(time.time() - start))
if time.time() - start >= 300:
reconnect_uart()
raise OSError('Timeout waiting for modem to respond!')
time.sleep(2)
if not self.wakeup_modem(
baudrate, port, 100, 1, debug,
self.__get_wait_msg(load_fff=load_fff)):
reconnect_uart()
raise OSError(
'Timeout while waiting for modem to finish updating!'
)
self.__serial.read()
self.__serial.write(b"AT+SMSWBOOT?\r\n")
resp = self.read_rsp(100)
if debug: print("AT+SMSWBOOT? returned {}".format(resp))
self.__serial.read()
self.__serial.write(b"AT+SMUPGRADE?\r\n")
resp = self.read_rsp(1024)
if debug: print("AT+SMUPGRADE? returned {}".format(resp))
sqnup_result = self.return_upgrade_response(resp)
if debug: print('This is my result: {}'.format(sqnup_result))
if 'success' in sqnup_result:
if not load_fff:
self.special_print('Resetting.', end='', flush=True)
self.__serial.write(b"AT+SMSWBOOT=1,1\r\n")
if debug:
print("AT+SMSWBOOT=1,1 returned {}".format(resp))
if b"ERROR" in resp:
time.sleep(5)
self.__serial.write(b"AT+SMSWBOOT=1,0\r\n")
resp = self.read_rsp(100)
if debug:
print('AT+SMSWBOOT=1,0 returned: {}'.format(
resp))
if b'OK' in resp:
self.__serial.write(b"AT^RESET\r\n")
resp = self.read_rsp(100)
if debug:
print('AT^RESET returned: {}'.format(resp))
return True
else:
print(
'Received ERROR from AT+SMSWBOOT=1,0! Aborting!'
)
return False
self.wait_for_modem(send=False,
echo_char='.',
expected=b'+SYSSTART')
elif sqnup_result is not None:
print(
'Upgrade failed with result {}!'.format(sqnup_result))
print('Please check your firmware file(s)')
else:
print("Invalid response after upgrade... aborting.")
reconnect_uart()
sys.exit(1)
self.__serial.write(b"AT\r\n")
self.__serial.write(b"AT\r\n")
time.sleep(0.5)
if 'success' in sqnup_result:
self.__serial.write(b"AT+SQNSUPGRADENTF=\"success\"\r\n")
self.__serial.read()
return True
elif sqnup_result is None:
print(
'Modem upgrade was unsucessfull. Please check your firmware file(s)'
)
return False
def __check_br(self, br_only=False, verbose=False, debug=False):
old_br = None
old_sw = None
if debug: print("Checking bootrom & application")
self.__serial.write(b"AT!=\"showver\"\r\n")
time.sleep(.5)
shver = self.read_rsp(2000)
if shver is not None:
for line in shver.decode('ascii').split('\n'):
if debug: print('Checking line {}'.format(line))
if "Bootloader0" in line:
old_br = "[33080]" in line
if debug: print("old_br: {}".format(old_br))
if "Software" in line:
old_sw = "[33080]" in line
if debug: print("old_sw: {}".format(old_sw))
if old_br is None or old_sw is None:
if debug: print("Returning: None")
return None
if old_br and (br_only or not old_sw):
if debug: print("Returning: True")
return True
if debug: print("Returning: False")
return False
def wakeup_modem(self,
baudrate,
port,
max_try,
delay,
debug,
msg='Attempting AT wakeup...'):
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
self.__serial = UART(1,
baudrate=baudrate,
pins=self.__pins,
timeout_chars=1)
MAX_TRY = max_try
count = 0
if msg is not None:
print(msg)
self.__serial.read()
self.__serial.write(b"AT\r\n")
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
while (not b'OK' in response) and (count < MAX_TRY):
count = count + 1
if debug: print('count={}'.format(count))
time.sleep(delay)
self.__serial.read()
self.__serial.write(b"AT\r\n")
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
if 'FiPy' in sysname or 'GPy' in sysname:
self.__serial = UART(1,
baudrate=baudrate,
pins=self.__pins,
timeout_chars=100)
return count < MAX_TRY
def at_negotiation(self, baudrate, port, max_try, mirror, atneg_only,
debug):
MAX_TRY = max_try
count = 0
print('Attempting AT auto-negotiation...')
self.__serial.write(b"AT\r\n")
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
while (not b'OK' in response) and (count < MAX_TRY):
count = count + 1
if debug: print('count={}'.format(count))
time.sleep(1)
self.__serial.read()
self.__serial.write(b"AT\r\n")
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
if b'OK' in response:
self.__serial.read()
cmd = "AT+IPR=%d\n" % baudrate
if debug: print('Setting baudrate to {}'.format(baudrate))
self.__serial.write(cmd.encode())
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
if b'OK' in response:
if atneg_only:
return True
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
self.__serial = UART(1,
baudrate=baudrate,
pins=self.__pins,
timeout_chars=100)
else:
self.__serial = None
self.__serial = serial.Serial(port,
baudrate,
bytesize=serial.EIGHTBITS,
timeout=0.1)
self.__serial.reset_input_buffer()
self.__serial.reset_output_buffer()
self.__serial.flush()
self.__serial.read()
if debug: print('Checking SMOD')
self.__serial.write(b"AT+SMOD?\r\n")
response = self.read_rsp(size=1)
if b'0' in response:
if debug: print("AT+SMOD? returned {}".format(response))
self.__serial.read()
return True
else:
print('ERROR in AT+SMOD returned {}'.format(response))
return False
else:
print('ERROR in AT+IPR={} returned {}'.format(
baudrate, response))
return False
else:
print(
'ERROR sending AT command... no response? {}'.format(response))
return False
time.sleep(1)
return True
def uart_mirror(self, color):
import pycom
pycom.heartbeat(False)
time.sleep(.5)
pycom.rgbled(color)
LTE.modem_upgrade_mode()
def success_message(self, port=None, verbose=False, debug=False):
print("Your modem has been successfully updated.")
print("Here is the current firmware version:\n")
self.show_version(port=port, verbose=verbose, debug=debug)
def upgrade(self,
ffile,
mfile=None,
baudrate=921600,
retry=False,
resume=False,
debug=False,
pkgdebug=False,
verbose=False,
load_fff=True):
success = True
if not retry and mfile is not None:
if resume or self.__check_br(
br_only=True, verbose=verbose, debug=debug):
success = False
success = self.__run(bootrom=True,
resume=resume,
switch_ffh=True,
direct=False,
debug=debug,
pkgdebug=pkgdebug,
verbose=verbose)
time.sleep(1)
else:
print('{} is not required. Resumining normal upgrade.'.format(
mfile))
mfile = None
success = True
if debug: print('Success1? {}'.format(success))
if success:
if mfile is not None:
success = False
success = self.__run(file_path=mfile,
load_ffh=True,
direct=False,
baudrate=baudrate,
debug=debug,
pkgdebug=pkgdebug,
verbose=verbose)
time.sleep(1)
else:
success = True
else:
print('Unable to upgrade bootrom.')
if debug: print('Success2? {}'.format(success))
if success:
if self.__run(file_path=ffile,
resume=True if mfile is not None else resume,
baudrate=baudrate,
direct=False,
debug=debug,
pkgdebug=pkgdebug,
verbose=verbose,
load_fff=False if mfile else load_fff):
if self.__check_br(verbose=verbose, debug=debug):
self.__run(bootrom=True,
debug=debug,
direct=False,
pkgdebug=pkgdebug,
verbose=verbose,
load_fff=True)
self.success_message(verbose=verbose, debug=debug)
else:
print('Unable to load updater from {}'.format(mfile))
def upgrade_uart(self,
ffh_mode=False,
mfile=None,
retry=False,
resume=False,
color=0x050505,
debug=False,
pkgdebug=False,
verbose=False,
load_fff=True):
success = False
try:
success = hasattr(LTE, 'modem_upgrade_mode')
except:
success = False
if not success:
print('Firmware does not support LTE.modem_upgrade_mode()!')
reconnect_uart()
sys.exit(1)
print('Preparing modem for upgrade...')
if not retry and ffh_mode:
success = False
success = self.__run(bootrom=True,
resume=resume,
switch_ffh=True,
direct=False,
debug=debug,
pkgdebug=pkgdebug,
verbose=verbose)
time.sleep(1)
if success:
if mfile is not None:
success = False
success = self.__run(file_path=mfile,
load_ffh=True,
direct=False,
debug=debug,
pkgdebug=pkgdebug,
verbose=verbose)
if debug: print('Success2? {}'.format(success))
if success:
self.__run(mirror=True,
load_ffh=False,
direct=False,
rgbled=color,
debug=debug,
verbose=verbose)
else:
print('Unable to load updater from {}'.format(mfile))
else:
self.__run(mirror=True,
load_ffh=ffh_mode,
direct=False,
rgbled=color,
debug=debug,
verbose=verbose)
else:
print('Unable to upgrade bootrom.')
def show_version(self, port=None, debug=False, verbose=False):
self.__run(port=port, debug=debug, version_only=True, verbose=verbose)
def upgrade_ext(self,
port,
ffile,
mfile,
resume=False,
debug=False,
pkgdebug=False,
verbose=False,
load_fff=True):
success = True
if mfile is not None:
success = False
success = self.__run(file_path=mfile,
load_ffh=True,
port=port,
debug=debug,
pkgdebug=pkgdebug,
verbose=verbose)
if success:
if self.__run(file_path=ffile,
resume=True if mfile is not None else resume,
direct=False,
port=port,
debug=debug,
pkgdebug=pkgdebug,
verbose=verbose,
load_fff=load_fff):
self.success_message(port=port, verbose=verbose, debug=debug)
else:
print('Unable to load updater from {}'.format(mfile))
class sqnsupgrade:
global sysname
def __init__(self):
self.__sysname = sysname
self.__pins = None
self.__connected = False
self.__sdpath = None
def special_print(self, msg, flush=None, end='\n'):
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
print(msg, end=end)
else:
print(msg, flush=flush, end=end)
def read_rsp(self, size=None, timeout=-1):
if timeout < 0:
timeout = 20000
elif timeout is None:
timeout = 0
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
while not self.__serial.any() and timeout > 0:
time.sleep_ms(1)
timeout -= 1
else:
while self.__serial.in_waiting <= 0 and timeout > 0:
time.sleep(0.001)
timeout -= 1
if size is not None:
rsp = self.__serial.read(size)
else:
rsp = self.__serial.read()
if rsp is not None:
return rsp
else:
return b''
def print_pretty_response(self, rsp, flush=False):
lines = rsp.decode('ascii').split('\r\n')
for line in lines:
if 'OK' not in line:
self.special_print(line, flush=flush)
def return_pretty_response(self, rsp):
ret_str = ''
lines = rsp.decode('ascii').split('\r\n')
for line in lines:
if 'OK' not in line:
ret_str += line
return ret_str
def return_code(self, rsp):
ret_str = b''
lines = rsp.decode('ascii').split('\r\n')
for line in lines:
if 'OK' not in line:
ret_str += line
try:
return int(ret_str)
except:
return -1
def wait_for_modem(self, send=True, expected=b'OK'):
rsp = b''
while True:
if send:
self.__serial.write(b"AT\r\n")
r = self.read_rsp(size=(len(expected) + 4), timeout=50)
if r:
rsp += r
if expected in rsp:
print()
break
else:
self.special_print('.', end='', flush=True)
time.sleep(0.5)
def __check_file(self, file_path, debug=False):
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
if file_path[
0] == '/' and not 'flash' in file_path and not file_path.split(
'/')[1] in os.listdir('/'):
if self.__sdpath is None:
self.__sdpath = file_path.split('/')[1]
sd = SD()
time.sleep(0.5)
os.mount(sd, '/{}'.format(self.__sdpath))
else:
print('SD card already mounted on {}!'.format(
self.__sdpath))
return False
try:
size = os.stat(file_path)[6]
if debug: print('File {} has size {}'.format(file_path, size))
return True
except Exception as ex:
print('Exception when checking file... wrong file name?')
print('{}'.format(ex))
return False
return False
def check_files(self, ffile, mfile=None, debug=False):
if mfile is not None:
if self.__check_file(mfile, debug):
return self.__check_file(ffile, debug)
else:
return False
else:
return self.__check_file(ffile, debug)
def detect_modem_state(self, retry=10, initial_delay=5):
if 'FiPy' or 'GPy' in self.__sysname:
if 'GPy' in self.__sysname:
pins = ('P5', 'P98', 'P7', 'P99')
else:
pins = ('P20', 'P18', 'P19', 'P17')
count = 0
while count < retry:
count += 1
delay = initial_delay * count
s = UART(1, baudrate=921600, pins=pins, timeout_chars=10)
s.read()
s.write(b"AT\r\n")
time.sleep_ms(delay)
resp = s.read()
s.write(b"AT\r\n")
time.sleep_ms(delay)
resp = s.read()
if resp is not None and b'OK' in resp:
s.write(b"AT+SMOD?\r\n")
time.sleep_ms(delay)
resp = s.read()
try:
return self.return_code(resp)
except:
continue
else:
s = UART(1, baudrate=115200, pins=pins, timeout_chars=10)
s.write(b"AT\r\n")
time.sleep_ms(delay)
resp = s.read()
s.write(b"AT\r\n")
time.sleep_ms(delay)
resp = s.read()
if resp is not None and b'OK' in resp:
s.write(b"AT+SMOD?\r\n")
time.sleep_ms(delay)
resp = s.read()
try:
return self.return_code(resp)
except:
continue
def __run(self,
file_path=None,
baudrate=921600,
port=None,
resume=False,
load_ffh=False,
mirror=False,
switch_ffh=False,
bootrom=False,
rgbled=0x050505,
debug=False,
pkgdebug=False,
atneg=True,
max_try=10,
direct=True,
atneg_only=False,
version_only=False):
mirror = True if atneg_only else mirror
recover = True if atneg_only else load_ffh
resume = True if mirror or recover or atneg_only or version_only else resume
if debug:
print(
'mirror? {} recover? {} resume? {} direct? {} atneg_only? {} bootrom? {} '
.format(mirror, recover, resume, direct, atneg_only, bootrom))
abort = True
external = False
self.__serial = None
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
if 'GPy' in self.__sysname:
self.__pins = ('P5', 'P98', 'P7', 'P99')
else:
self.__pins = ('P20', 'P18', 'P19', 'P17')
self.__serial = UART(1,
baudrate=115200 if recover else baudrate,
pins=self.__pins,
timeout_chars=100)
self.__serial.read()
else:
if port is None:
raise ValueError('serial port not specified')
if debug: print('Setting port {}'.format(port))
external = True
br = 115200 if recover and not direct else baudrate
if debug: print('Setting baudrate to {}'.format(br))
self.__serial = serial.Serial(port,
br,
bytesize=serial.EIGHTBITS,
timeout=1 if version_only else 0.1)
self.__serial.reset_input_buffer()
self.__serial.reset_output_buffer()
if debug: print('Initial prepartion complete...')
if version_only:
self.__serial.read()
self.__serial.write(b"AT!=\"showver\"\r\n")
time.sleep(.5)
shver = self.read_rsp(2000)
if shver is not None:
self.print_pretty_response(shver)
return True
if not mirror:
if bootrom:
if debug: print('Loading built-in recovery bootrom')
from sqnsbr import bootrom
blob = bootrom()
blobsize = blob.get_size()
else:
if debug: print('Loading {}'.format(file_path))
blobsize = os.stat(file_path)[6]
blob = open(file_path, "rb")
if not load_ffh:
if not self.wakeup_modem(baudrate, port, 10, 1, debug):
return False
if not resume:
# disable echo
self.__serial.write(b"ATE0\r\n")
response = self.read_rsp(size=6)
self.__serial.read(100)
if debug: print('Entering recovery mode')
self.__serial.write(b"AT+SMOD?\r\n")
response = self.return_pretty_response(self.read_rsp(size=7))
self.__serial.read(100)
if debug: print("AT+SMOD? returned {}".format(response))
if not bootrom:
self.__serial.write(b"AT+SMSWBOOT=3,1\r\n")
time.sleep(2)
self.wait_for_modem()
self.__serial.write(b"AT\r\n")
self.__serial.write(b"AT\r\n")
else:
self.__serial.read(100)
if debug: print('Entering recovery mode')
self.__serial.write(b"AT+SMOD?\r\n")
response = self.return_pretty_response(self.read_rsp(size=7))
self.__serial.read(100)
if debug: print("AT+SMOD? returned {}".format(response))
time.sleep(1)
self.__serial.read()
if (not recover) and (not direct):
if mirror:
time.sleep(.5)
self.__serial.read(100)
print(
'Going into MIRROR mode... please close this terminal to resume the upgrade via UART'
)
self.uart_mirror(rgbled)
elif bootrom:
print('Starting STP (DO NOT DISCONNECT POWER!!!)')
else:
print('Starting STP ON_THE_FLY')
self.__serial.read(100)
self.__serial.write(b'AT+SMSTPU=\"ON_THE_FLY\"\r\n')
response = self.read_rsp(size=4)
if response != b'OK\r\n' and response != b'\r\nOK' and response != b'\nOK':
raise OSError("Invalid answer '%s' from the device" % response)
blob.close()
self.__serial.read()
elif recover and (not direct):
if atneg:
result = self.at_negotiation(baudrate, port, max_try, mirror,
atneg_only, debug)
if result:
if atneg_only:
return True
if mirror:
time.sleep(.5)
self.__serial.read(100)
print(
'Going into MIRROR mode... please close this terminal to resume the upgrade via UART'
)
self.uart_mirror(rgbled)
else:
self.__serial.write(b"AT+STP\n")
response = self.read_rsp(size=6)
if not b'OK' in response:
print('Failed to start STP mode!')
sys.exit(1)
else:
print('AT auto-negotiation failed! Exiting.')
return False
else:
if debug: print('Starting STP mode...')
self.__serial.write(b"AT+STP\n")
response = self.read_rsp(size=6)
if not b'OK' in response:
print('Failed to start STP mode!')
sys.exit(1)
try:
if debug:
print('Starting STP code upload')
if stp.start(blob,
blobsize,
self.__serial,
baudrate,
AT=False,
debug=debug,
pkgdebug=pkgdebug):
blob.close()
if switch_ffh:
print(
'Bootrom updated successfully, switching to upgrade mode'
)
abort = False
elif load_ffh:
if not self.wakeup_modem(baudrate, port, 100, 1, debug):
return False
print(
'Upgrader loaded successfully, modem is in upgrade mode'
)
return True
else:
print('Code download done, returning to user mode')
abort = recover
else:
blob.close()
print('Code download failed, aborting!')
return False
except:
blob.close()
print('Code download failed, aborting!')
abort = True
time.sleep(1.5)
if not abort:
self.__serial.read()
if switch_ffh:
self.__serial.write(b"AT+SMSWBOOT=0,1\r\n")
return True
else:
self.special_print('Resetting (DO NOT DISCONNECT POWER!!!).',
end='',
flush=True)
self.__serial.write(b"AT+SMSWBOOT=1,1\r\n")
self.wait_for_modem(send=False, expected=b'+SYSSTART')
self.__serial.write(b"AT\r\n")
self.__serial.write(b"AT\r\n")
time.sleep(0.5)
self.__serial.read()
print('Upgrade completed!')
print("Here's the current firmware version:")
time.sleep(0.5)
self.__serial.read()
self.__serial.write(b"AT!=\"showver\"\r\n")
time.sleep(.5)
shver = self.read_rsp(2000)
if shver is not None:
self.print_pretty_response(shver)
return True
return False
def wakeup_modem(self, baudrate, port, max_try, delay, debug):
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
self.__serial = UART(1,
baudrate=baudrate,
pins=self.__pins,
timeout_chars=1)
MAX_TRY = max_try
count = 0
print('Attempting AT wakeup...')
self.__serial.read()
self.__serial.write(b"AT\r\n")
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
while (not b'OK' in response) and (count < MAX_TRY):
count = count + 1
if debug: print('count={}'.format(count))
time.sleep(delay)
self.__serial.read()
self.__serial.write(b"AT\r\n")
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
if 'FiPy' in sysname or 'GPy' in sysname:
self.__serial = UART(1,
baudrate=baudrate,
pins=self.__pins,
timeout_chars=100)
return count < MAX_TRY
def at_negotiation(self, baudrate, port, max_try, mirror, atneg_only,
debug):
MAX_TRY = max_try
count = 0
print('Attempting AT auto-negotiation...')
self.__serial.write(b"AT\r\n")
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
while (not b'OK' in response) and (count < MAX_TRY):
count = count + 1
if debug: print('count={}'.format(count))
time.sleep(1)
self.__serial.read()
self.__serial.write(b"AT\r\n")
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
if b'OK' in response:
self.__serial.read()
cmd = "AT+IPR=%d\n" % baudrate
if debug: print('Setting baudrate to {}'.format(baudrate))
self.__serial.write(cmd.encode())
response = self.read_rsp(size=6)
if debug: print('{}'.format(response))
if b'OK' in response:
if atneg_only:
return True
if 'FiPy' in self.__sysname or 'GPy' in self.__sysname:
self.__serial = UART(1,
baudrate=baudrate,
pins=self.__pins,
timeout_chars=100)
else:
self.__serial = None
self.__serial = serial.Serial(port,
baudrate,
bytesize=serial.EIGHTBITS,
timeout=0.1)
self.__serial.reset_input_buffer()
self.__serial.reset_output_buffer()
self.__serial.flush()
self.__serial.read()
if debug: print('Checking SMOD')
self.__serial.write(b"AT+SMOD?\r\n")
response = self.read_rsp(size=1)
if b'0' in response:
if debug: print("AT+SMOD? returned {}".format(response))
self.__serial.read()
return True
else:
print('ERROR in AT+SMOD returned {}'.format(response))
return False
else:
print('ERROR in AT+IPR={} returned {}'.format(
baudrate, response))
return False
else:
print(
'ERROR sending AT command... no response? {}'.format(response))
return False
time.sleep(1)
return True
def uart_mirror(self, color):
import pycom
pycom.heartbeat(False)
time.sleep(.5)
pycom.rgbled(color)
from network import LTE
LTE.modem_upgrade_mode()
def upgrade_sd(self,
ffile,
mfile=None,
baudrate=921600,
retry=False,
resume=False,
debug=False,
pkgdebug=False):
print('<<< Welcome to the SQN3330 firmware updater >>>')
success = True
if not retry and mfile is not None:
success = False
success = self.__run(bootrom=True,
resume=resume,
switch_ffh=True,
direct=False,
debug=debug,
pkgdebug=pkgdebug)
time.sleep(1)
if debug: print('Success1? {}'.format(success))
if success:
if mfile is not None:
success = False
success = self.__run(file_path=mfile,
load_ffh=True,
direct=False,
baudrate=baudrate,
debug=debug,
pkgdebug=pkgdebug)
time.sleep(1)
else:
success = True
else:
print('Unable to upgrade bootrom.')
if debug: print('Success2? {}'.format(success))
if success:
self.__run(file_path=ffile,
resume=True if mfile is not None else resume,
baudrate=baudrate,
direct=False,
debug=debug,
pkgdebug=pkgdebug)
else:
print('Unable to load updater from {}'.format(mfile))
def upgrade_uart(self,
ffh_mode=False,
mfile=None,
retry=False,
resume=False,
color=0x050505,
debug=False,
pkgdebug=False):
success = True
print('Preparing modem for upgrade...')
if not retry and ffh_mode:
success = False
success = self.__run(bootrom=True,
resume=resume,
switch_ffh=True,
direct=False,
debug=debug,
pkgdebug=pkgdebug)
time.sleep(1)
if success:
if mfile is not None:
success = False
success = self.__run(file_path=mfile,
load_ffh=True,
direct=False,
debug=debug,
pkgdebug=pkgdebug)
if debug: print('Success2? {}'.format(success))
if success:
self.__run(mirror=True,
load_ffh=False,
direct=False,
rgbled=color,
debug=debug)
else:
print('Unable to load updater from {}'.format(mfile))
else:
self.__run(mirror=True,
load_ffh=ffh_mode,
direct=False,
rgbled=color,
debug=debug)
else:
print('Unable to upgrade bootrom.')
def show_version(self, port=None, debug=False):
self.__run(port=port, debug=debug, version_only=True)
def upgrade_ext(self,
port,
ffile,
mfile,
resume=False,
debug=False,
pkgdebug=False):
success = True
print('<<< Welcome to the SQN3330 firmware updater >>>')
if mfile is not None:
success = False
success = self.__run(file_path=mfile,
load_ffh=True,
port=port,
debug=debug,
pkgdebug=pkgdebug)
if success:
self.__run(file_path=ffile,
resume=True if mfile is not None else resume,
direct=False,
port=port,
debug=debug,
pkgdebug=pkgdebug)
else:
print('Unable to load updater from {}'.format(mfile))
def run(file_path, baudrate, port=None, resume=False):
global sysname
abort = True
s = None
print('<<< Welcome to the SQN3330 firmware updater >>>')
if 'FiPy' in sysname or 'GPy' in sysname:
if '/sd' in file_path and not 'sd' in os.listdir('/'):
sd = SD()
time.sleep(0.5)
os.mount(sd, '/sd')
time.sleep(0.5)
if 'GPy' in sysname:
pins = ('P5', 'P98', 'P7', 'P99')
else:
pins = ('P20', 'P18', 'P19', 'P17')
s = UART(1, baudrate=baudrate, pins=pins, timeout_chars=100)
s.read()
else:
if port is None:
raise ValueError('serial port not specified')
s = serial.Serial(port,
baudrate=921600,
bytesize=serial.EIGHTBITS,
timeout=0.1)
s.reset_input_buffer()
s.reset_output_buffer()
blobsize = os.stat(file_path)[6]
blob = open(file_path, "rb")
if not resume:
# disable echo
s.write(b"ATE0\r\n")
response = read_rsp(s, size=6)
s.read(100)
print('Entering recovery mode')
s.write(b"AT+SMSWBOOT=3,0\r\n")
response = read_rsp(s, size=6)
if b'OK' in response:
print('Resetting.', end='', flush=True)
s.write(b'AT^RESET\r\n')
wait_for_modem(s, send=False, expected=b'+SHUTDOWN')
time.sleep(2)
wait_for_modem(s)
s.write(b"AT\r\n")
s.write(b"AT\r\n")
else:
raise OSError('AT+SMSWBOOT=3,0 failed!')
time.sleep(1)
s.read()
print('Starting STP (DO NOT DISCONNECT POWER!!!)')
s.read(100)
s.write(b'AT+SMSTPU=\"ON_THE_FLY\"\r\n')
response = read_rsp(s, size=4)
if response != b'OK\r\n' and response != b'\r\nOK' and response != b'\nOK':
raise OSError("Invalid answer '%s' from the device" % response)
blob.close()
s.read()
try:
stp.start(blob, blobsize, s, baudrate, AT=False)
print('Code download done, returning to user mode')
abort = False
except:
blob.close()
print('Code download failed, aborting!')
abort = True
time.sleep(1.5)
s.read()
s.write(b"AT+SMSWBOOT=1,0\r\n")
response = read_rsp(s, size=6)
print('Resetting (DO NOT DISCONNECT POWER!!!).', end='', flush=True)
time.sleep(1.5)
s.write(b"AT^RESET\r\n")
wait_for_modem(s, send=False, expected=b'+SHUTDOWN')
time.sleep(2)
wait_for_modem(s, send=False, expected=b'+SYSSTART')
if not abort:
time.sleep(0.5)
print('Deploying the upgrade (DO NOT DISCONNECT POWER!!!)...')
s.write(b"AT+SMUPGRADE\r\n")
response = read_rsp(s, size=6, timeout=120000)
print('Resetting (DO NOT DISCONNECT POWER!!!).', end='', flush=True)
time.sleep(1.5)
s.write(b"AT^RESET\r\n")
wait_for_modem(s, send=False, expected=b'+SHUTDOWN')
time.sleep(2)
wait_for_modem(s, send=False, expected=b'+SYSSTART')
s.write(b"AT\r\n")
s.write(b"AT\r\n")
time.sleep(0.5)
s.read()
print('Upgrade completed!')
print("Here's the current firmware version:")
time.sleep(0.5)
s.read()
s.write(b"ATI1\r\n")
response = read_rsp(s, size=100)
print_pretty_response(response)
