# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1465282087 0
# Node ID c19fb53b730b3360213c587b2eff7f61695868d4
# Parent  5bad5a0bdec2e6ac1ba30465caef37197c0eaf28
dl1_com.c: reconstructed CPU load measurement code in layer_1_sync_HISR_entry()
reconstruction of this module can be considered complete at this point

diff -r 5bad5a0bdec2 -r c19fb53b730b chipsetsw/layer1/dl1/dl1_com.c
--- a/chipsetsw/layer1/dl1/dl1_com.c	Tue Jun 07 05:55:03 2016 +0000
+++ b/chipsetsw/layer1/dl1/dl1_com.c	Tue Jun 07 06:48:07 2016 +0000
@@ -261,8 +261,46 @@
 
 void layer_1_sync_HISR_entry (void)
 {
-   // Call Synchronous Layer1
-   hisr();
+  /* automatic var for the CPU load measurement code below */
+  #if (TRACE_TYPE == 4)
+    unsigned long cpu;
+  #endif
+
+  // Call Synchronous Layer1
+  hisr();
+
+  /*
+   * FreeCalypso: the following code has been reconstructed from
+   * the disassembly of the TCS211 binary object; it was found to be
+   * similar to the Trace_L1S_CPU_load() function in l1_trace.c
+   * which appears to have been only for (TRACE_TYPE == 1) originally.
+   */
+  #if (TRACE_TYPE == 4)
+    layer_1_sync_end_time = TIMER_RESET_VALUE - TM_ReadTimer(2);
+
+    cpu = (100 * layer_1_sync_end_time) / TICKS_PER_TDMA;
+    if (cpu > max_cpu)
+    {
+      max_cpu=cpu;
+      fn_max_cpu=l1s.actual_time.fn;
+      max_cpu_flag = 1;
+      /*
+       * TCS211 object has this bogus code here:
+
+       if (some non-understood condition) {
+         static int i;
+         i++;	// static var never used anywhere
+         max_cpu_flag = 1;
+       }
+
+       * Because this bogus code does not change the result,
+       * I decided not to bother with reconstructing it.
+       */
+    }
+
+    if (((l1s.actual_time.fn%1326) == 0) && (max_cpu_flag == 0))
+      max_cpu = 0;
+  #endif
 }
 
 /* the following stub functions live in the dl1_com module per TCS211 */