From 32716dee3d685f09116b8581c93aacaa667c0bff Mon Sep 17 00:00:00 2001
From: Adnan Hodzic <adnan@hodzic.org>
Date: Sun, 29 Dec 2019 22:56:16 +0100
Subject: [PATCH] added option where only lapotps with intel_pstate enabled are
 supported

---
 auto-cpufreq.py | 32 ++++++++++++++++++++++++++++----
 1 file changed, 28 insertions(+), 4 deletions(-)

diff --git a/auto-cpufreq.py b/auto-cpufreq.py
index ca3c8bf..d0769f1 100644
--- a/auto-cpufreq.py
+++ b/auto-cpufreq.py
@@ -5,6 +5,7 @@ import os
 import sys
 import time
 import psutil
+import platform
 
 # ToDo:
 # - only run if driver is Intel pstate
@@ -15,10 +16,21 @@ import psutil
 # - add option to enable turbo in powersave
 # - go thru all other ToDo's
 
+# global var
 p = psutil
 s = subprocess
 tool_run = "python3 auto-cpufreq.py"
 
+def driver_check():
+    driver = s.getoutput("cpufreqctl --driver")
+    if driver != "intel_pstate":
+        sys.exit(f"\nError:\nOnly laptops with enabled \"intel_pstate\" (CPU Performance Scaling Driver) are supported.\n")
+
+        # print distro
+        # print chipset
+        # print laptop
+        
+
 def avail_gov():
     # available governors
     get_avail_gov = s.getoutput("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors")
@@ -40,7 +52,7 @@ def root_check():
 # set powersave
 def set_powersave():
     print("\nSetting: powersave")
-    s.run("sudo cpufreqctl --governor --set=powersave", shell=True)
+    s.run("cpufreqctl --governor --set=powersave", shell=True)
     
     print("Setting turbo: off")
     s.run("echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo", shell=True)
@@ -48,9 +60,9 @@ def set_powersave():
 # set performance
 def set_performance():
     print("\nSetting: performance")
-    s.run("sudo cpufreqctl --governor --set=performance", shell=True)
+    s.run("cpufreqctl --governor --set=performance", shell=True)
     # alternative
-    # sudo echo performance /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
+    # echo performance /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
 
     # enable turbo boost
     set_turbo()
@@ -81,9 +93,19 @@ def set_turbo():
 
 # - display cpu/load/sensors(?) info
 #def sysload_info():
-#    ....
+    # distro
+    # kernel
+    # number of cores
+    # driver?
+    # chipset
+    # laptop maker/model?
+    # sensors?
     
 def autofreq():
+
+    driver_check()
+
+    # ToDo: make a function?
     # check battery status
     get_bat_state = s.getoutput("cat /sys/class/power_supply/BAT0/status")
     bat_state = get_bat_state.split()[0]
@@ -97,7 +119,9 @@ def autofreq():
 if __name__ == '__main__':
     while True:
         root_check()
+
         #load()
         #set_powersave()
+
         autofreq()
         time.sleep(10)
\ No newline at end of file