Add parameter enabling/disabling fan control (653164b2) · Commits · Elphel / elphel-apps-tempmon

src/tempmon.py

+35 −4

Original line number	Original line	Diff line number	Diff line
	@@ -27,6 +27,7 @@ import sys
	import time		import time
	import subprocess		import subprocess
	import atexit		import atexit
			import getopt
	from posix import EX_OSFILE, F_OK		from posix import EX_OSFILE, F_OK

	DEBUG = 0		DEBUG = 0
	@@ -59,10 +60,11 @@ out_fn = {"core_temp_fn": "core_temp",

	class temp_monitor():		class temp_monitor():
	def __init__(self, ctrl_path_pref, ctrl_file_names, hwmon_path_pref, hwmon_fn,		def __init__(self, ctrl_path_pref, ctrl_file_names, hwmon_path_pref, hwmon_fn,
	out_path_prefix, out_fnames):		out_path_prefix, out_fnames, control_fan):
	self.is_fan_on = False		self.is_fan_on = False
	self.is_vp5_enabled = False		self.is_vp5_enabled = False
	self.is_10389_present = True		self.is_10389_present = True
			self.control_fan = control_fan
	self.ctrl_path_prefix = ctrl_path_pref		self.ctrl_path_prefix = ctrl_path_pref
	self.ctrl_fnames = ctrl_file_names		self.ctrl_fnames = ctrl_file_names
	self.hwmon_path_prefix = hwmon_path_pref		self.hwmon_path_prefix = hwmon_path_pref
	@@ -124,9 +126,12 @@ class temp_monitor():

	def fan_ctrl(self, ctrl):		def fan_ctrl(self, ctrl):
	"""		"""
	Control fan by writing to sysfs files.		Control fan (if this is allowed during script invocation) by writing to sysfs files.
	@param ctrl: can be "on" or "off" to turn fan on or off		@param ctrl: can be "on" or "off" to turn fan on or off
	"""		"""
			if self.control_fan is False:
			return

	if ctrl is "on":		if ctrl is "on":
	""" check if +5V is active and turn it on if it is not (it should not happen) """		""" check if +5V is active and turn it on if it is not (it should not happen) """
	with open(self.ctrl_path_prefix + self.ctrl_fnames["vp5_en_fn"], "r+") as f:		with open(self.ctrl_path_prefix + self.ctrl_fnames["vp5_en_fn"], "r+") as f:
	@@ -217,14 +222,40 @@ class temp_monitor():
	self.core_temp_params_f.write(str(key) + ": " + str(val) + "\n")		self.core_temp_params_f.write(str(key) + ": " + str(val) + "\n")
	self.core_temp_params_f.flush()		self.core_temp_params_f.flush()

			def print_help():
			"""
			Print usage information.
			"""
			print "tempmon.py [--control_fan on\|off]"
			print "'control_fan' parameter enables or disables camera fan control. Default value for this parameter is 'on'."

	if __name__ == "__main__":		if __name__ == "__main__":
	if DEBUG:		if DEBUG:
	ctrl_path_pref = ""		ctrl_path_pref = ""
	hwmon_path_pref = ""		hwmon_path_pref = ""
	out_path_pref = ""		out_path_pref = ""
	tm = temp_monitor(ctrl_path_pref, ctrl_fn, hwmon_path_pref, hwmon_fn, out_path_pref, out_fn)
			# parse command line options
			try:
			opts, args = getopt.getopt(sys.argv[1:], "h", ["control_fan="])
			except:
			print_help()
			sys.exit(2)
			control_fan = True
			for opt, arg in opts:
			if opt == "-h":
			print_help()
			sys.exit(0)
			elif opt == "--control_fan":
			if arg == "on":
			control_fan = True
			else:
			control_fan = False

			tm = temp_monitor(ctrl_path_pref, ctrl_fn, hwmon_path_pref, hwmon_fn, out_path_pref, out_fn, control_fan)
	if tm.check_files():		if tm.check_files():
	# unconditionally turn the fan on to set the driver to a known state		# unconditionally turn the fan on to set the driver to a known state
			if control_fan:
	tm.fan_ctrl("on")		tm.fan_ctrl("on")
	tm.monitor()		tm.monitor()
	else:		else:

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