def loadGsd(name, debug=0):
exceptions = []
# Try name as a direct file name.
try:
return GsdInterp.fromFile(name, debug=(debug > 0))
except GsdError as e:
exceptions.append(str(e))
# Try to interpret the name as a module name.
try:
if "/" not in name:
mod = name.replace(".gsd", "_gsd")
return GsdInterp.fromPy(mod, debug=(debug > 0))
except GsdError as e:
exceptions.append(str(e))
# Try to interpret the name as a module name with leading fs path components stripped.
try:
slashIdx = name.rfind("/")
if slashIdx >= 0:
mod = name[slashIdx + 1:].replace(".gsd", "_gsd")
return GsdInterp.fromPy(mod, debug=(debug > 0))
except GsdError as e:
exceptions.append(str(e))
raise GsdError("\n".join(exceptions))
def __interpErr(self, errorText):
raise GsdError("GSD '%s': %s" %
(self.getFileName() or "<data>", errorText))
def __init__(self, fd, filename=None):
def get(section, option, fallback=None):
if p.has_option(section, option):
return p.get(section, option)
if fallback is None:
raise ValueError("Option [%s] '%s' does not exist." %
(section, option))
return fallback
def getboolean(section, option, fallback=None):
if p.has_option(section, option):
return p.getboolean(section, option)
if fallback is None:
raise ValueError("Option [%s] '%s' does not exist." %
(section, option))
return fallback
def getint(section, option, fallback=None):
if p.has_option(section, option):
return p.getint(section, option)
if fallback is None:
raise ValueError("Option [%s] '%s' does not exist." %
(section, option))
return fallback
try:
p = _ConfigParser()
if hasattr(p, "read_file"):
p.read_file(fd, filename)
else:
p.readfp(fd, filename)
# [PROFIBUS]
self.debug = getint("PROFIBUS", "debug", fallback=0)
# [PHY]
self.phyType = get("PHY", "type", fallback="serial")
self.phyDev = get("PHY", "dev", fallback="/dev/ttyS0")
self.phyBaud = getint("PHY", "baud", fallback=9600)
self.phyRtsCts = getboolean("PHY", "rtscts", fallback=False)
self.phyDsrDtr = getboolean("PHY", "dsrdtr", fallback=False)
self.phySpiBus = getint("PHY", "spiBus", fallback=0)
self.phySpiCS = getint("PHY", "spiCS", fallback=0)
self.phySpiSpeedHz = getint("PHY", "spiSpeedHz", fallback=1000000)
# [DP]
self.dpMasterClass = getint("DP", "master_class", fallback=1)
if self.dpMasterClass not in {1, 2}:
raise ValueError("Invalid master_class")
self.dpMasterAddr = getint("DP", "master_addr", fallback=0x02)
if self.dpMasterAddr < 0 or self.dpMasterAddr > 127:
raise ValueError("Invalid master_addr")
self.slaveConfs = []
for section in p.sections():
m = self.__reSlave.match(section)
if not m:
continue
index = int(m.group(1))
s = self._SlaveConf()
s.index = index
s.name = get(section, "name", section)
s.addr = getint(section, "addr")
try:
s.gsd = GsdInterp.fromFile(get(section, "gsd"),
debug=(self.debug > 0))
except GsdError as origExc:
try:
s.gsd = GsdInterp.fromPy(get(section,
"gsd").replace(".", "_"),
debug=(self.debug > 0))
except GsdError as e:
raise GsdError("%s\n%s" % (str(origExc), str(e)))
s.syncMode = getboolean(section, "sync_mode", fallback=False)
s.freezeMode = getboolean(section,
"freeze_mode",
fallback=False)
s.groupMask = getboolean(section, "group_mask", fallback=1)
if s.groupMask < 0 or s.groupMask > 0xFF:
raise ValueError("Invalid group_mask")
s.watchdogMs = getint(section, "watchdog_ms", fallback=5000)
if s.watchdogMs < 0 or s.watchdogMs > 255 * 255:
raise ValueError("Invalid watchdog_ms")
s.inputSize = getint(section, "input_size")
if s.inputSize < 0 or s.inputSize > 246:
raise ValueError("Invalid input_size")
s.outputSize = getint(section, "output_size")
if s.outputSize < 0 or s.outputSize > 246:
raise ValueError("Invalid output_size")
mods = [o for o in p.options(section) if self.__reMod.match(o)]
mods.sort(key=lambda o: self.__reMod.match(o).group(1))
if s.gsd.isModular():
for option in mods:
s.gsd.setConfiguredModule(get(section, option))
elif mods:
print(
"Warning: Some modules are specified in the config file, "
"but the station is 'Compact': Modular_Station=0.",
file=sys.stderr)
self.slaveConfs.append(s)
except (IOError, UnicodeError) as e:
raise PbConfError("Failed to read '%s': %s" %\
(filename, str(e)))
except (_ConfigParserError, ValueError) as e:
raise PbConfError("Profibus config file parse "
"error:\n%s" % str(e))
except GsdError as e:
raise PbConfError("Failed to parse GSD file:\n%s" % str(e))