Add temperature control feature, as the board doesn't do it automatically for any fan but the cpu fan

README.md

@@ -14,3 +14,4 @@ This is a script to control 4-pin PWM fans on ASRock Rack motherboards with IPMI
     optional arguments:
       -h, --help  show this help message and exit
       -i, --info  Read fan information
+      -a, --auto  Service to control fans based on temperature

pwm.py

@@ -3,6 +3,10 @@ import run_cmd
 import argparse
 import time
 MAXFAN = 6
+MINSPEED = 35
+MAXSPEED = 100
+MINTEMP = 30
+MAXTEMP = 65
 
 parser = argparse.ArgumentParser(description='Read information about and control fans on ASRock boards with IPMI.', prog='asrock-pwm-ipmi')
 parser.add_argument('fanplusspeed', nargs='*', metavar='FAN:SPEED',
@@ -11,28 +15,56 @@ parser.add_argument('fanplusspeed', nargs='*', metavar='FAN:SPEED',
 #                   help='Speed to set FAN to')
 parser.add_argument('-i', '--info', action="store_true", default=False,
                    help='Read fan information')
-
+parser.add_argument('-a', '--auto', action="store_true", default=False,
+		   help='Service to control fans based on temperature')
 
 args = parser.parse_args()
 #print(args.info)
 #print(args)
 #print(args.fanplusspeed)
 fanChanged = False
+
+def iterateFans(info):
+	for fanopt in info:
+                if str(fanopt.split(":"))[2:-2] == fanopt or int(fanopt.split(":")[0]) < 1 or int(fanopt.split(":")[0]) > MAXFAN:
+                        print("Improper format!")
+                        continue
+                fan, speed = fanopt.split(":")
+                run_cmd.setSpeed(int(fan), int(speed))
+                fanChanged = True
+                if int(speed) == 0:
+                        print("Set speed of FAN" + fan + " to Auto.")
+                else:
+                        print("Set speed of FAN" + fan + " to " + speed + "%.")
+
+
+while args.auto is True:
+	temp = run_cmd.getTemp()
+	speeds = []
+	if temp < MINTEMP:
+		for i in range(2, 7):
+			speeds.append(str(i) + ":1")
+		#speeds = "2:1 3:1 4:1 5:1 6:1"
+	elif temp > MAXTEMP:
+		for i in range(2, 7):
+                	speeds.append(str(i) + ":100")
+		#speeds = "2:100 3:100 4:100 5:100 6:100"
+	else:
+		base = temp - MINTEMP
+		max = MAXTEMP - MINTEMP
+		scaled = base / max
+		speed = int(scaled * (MAXSPEED - MINSPEED) + MINSPEED)
+		for i in range(2, 7):
+                	speeds.append(str(i) + ":" + str(speed))
+	iterateFans(speeds)
+	#print(speeds)
+	time.sleep(1)
+
 if args.info is False and args.fanplusspeed == []:
 	print("Nothing to do! See --help for usage.")
 	quit
 if args.fanplusspeed != []:
-	for fanopt in args.fanplusspeed:
+	iterateFans(args.fanplusspeed)
-		if str(fanopt.split(":"))[2:-2] == fanopt or int(fanopt.split(":")[0]) < 1 or int(fanopt.split(":")[0]) > MAXFAN:
-			print("Improper format!")
-			continue
-		fan, speed = fanopt.split(":")
-		run_cmd.setSpeed(int(fan), int(speed))
-		fanChanged = True
-		if int(speed) == 0:
-			print("Set speed of FAN" + fan + " to Auto.")
-		else:
-			print("Set speed of FAN" + fan + " to " + speed + "%.")
 if args.info is True:
 	if fanChanged is True:
 		print("\nWaiting for fans to adjust...")

run_cmd.py

@@ -1,5 +1,6 @@
 #!/usr/bin/python3
 import subprocess as sp
+import json
 
 def setSpeed(fan, setspeed):
 	speeds, speedsRaw = getAllSpeeds()
@@ -32,7 +33,7 @@ def getFanInfo():
 	sensorinfo, err = cmdoutput.communicate()
 	#print(sensorinfo.splitlines())
 	faninfo = []
-	speeds, speedsRaw= getAllSpeeds()
+	speeds, speedsRaw = getAllSpeeds()
 	for line in sensorinfo.splitlines():
 		if "FAN" in str(line):
 			faninfo.append(str(line))
@@ -46,3 +47,10 @@ def getFanInfo():
 			faninfo[index] += "%"
 		#print(faninfo[index])
 	return faninfo
+
+def getTemp():
+	cmdoutput = sp.Popen(["sensors", "-Aj", "zenpower-*"], stdout=sp.PIPE)
+	sensorjson, err = cmdoutput.communicate()
+	sensordata = json.loads(sensorjson)
+	temp = sensordata["zenpower-pci-00c3"]["Tdie"]["temp1_input"]
+	return temp