commit c51ba919f6c6aab412574af0849db268609c4136
author Bonnie Lo <Bonnie_Lo@wiwynn.com> Wed Oct 12 14:07:22 2022 +0800
committer DelphineCCChiu <Delphine_CC_Chiu@wiwynn.com> Wed Nov 16 01:09:16 2022 +0000
tree 64ce5e1723ac2edcbe3c756bb13042a26c24c3da
parent 0e8fc3980a6690d1b2be2b4e96a8018aa1eacc96

Add debug mode

Description:
    1. Could enable debug mode by adding file: /etc/thermal.d/debugging.
        $ mkdir /etc/thermal.d
        $ touch /etc/thermal.d/debugging
        $ systemctl restart phosphor-pid-control

    2. Could record fans output PWM, chosen temperature, PID/stepwise output PWM in debug mode.

Design:
    1. Create debugging file and restart service to enable debug mode.

    2. Check if debug mode is enabled to output fans output PWM, chosen temperature,
       PID/stepwise output PWM, and so on.

Test Case:
    1. Enable debug mode and check logs: pass

Change-Id: I8527ebcb81e723298ba7e786b4501f986ebd439e
Signed-off-by: Bonnie Lo <Bonnie_Lo@wiwynn.com>

pid/fancontroller.cpp

diff --git a/pid/fancontroller.cpp b/pid/fancontroller.cpp
index 57902ab..7d4a92d 100644
--- a/pid/fancontroller.cpp
+++ b/pid/fancontroller.cpp
@@ -145,8 +145,24 @@
             {
                 percent = failsafePercent;
             }
+
+            if (failsafePrint || debugEnabled)
+            {
+                std::cerr << "Zone " << _owner->getZoneID()
+                          << " fans output failsafe pwm: " << percent << "\n";
+                failsafePrint = false;
+            }
 #endif
         }
+        else
+        {
+            failsafePrint = true;
+            if (debugEnabled)
+            {
+                std::cerr << "Zone " << _owner->getZoneID()
+                          << " fans output pwm: " << percent << "\n";
+            }
+        }
     }
 
     // value and kFanFailSafeDutyCycle are 10 for 10% so let's fix that.