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/stepwisecontroller.cpp

diff --git a/pid/stepwisecontroller.cpp b/pid/stepwisecontroller.cpp
index 5c36778..d141f87 100644
--- a/pid/stepwisecontroller.cpp
+++ b/pid/stepwisecontroller.cpp
@@ -18,6 +18,7 @@
 
 #include "ec/stepwise.hpp"
 #include "errors/exception.hpp"
+#include "tuning.hpp"
 #include "util.hpp"
 #include "zone.hpp"
 
@@ -90,6 +91,13 @@
     {
         value = std::max(value, _owner->getCachedValue(in));
     }
+
+    if (debugEnabled)
+    {
+        std::cerr << getID()
+                  << " choose the maximum temperature value: " << value << "\n";
+    }
+
     return value;
 }
 
@@ -102,6 +110,10 @@
     else
     {
         _owner->addSetPoint(value, _id);
+        if (debugEnabled)
+        {
+            std::cerr << getID() << " stepwise output pwm: " << value << "\n";
+        }
     }
     return;
 }