From 16044c7aeac671a4914749a387a6c526f0b2fdce Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Wed, 31 Jul 2013 10:26:40 +0000
Subject: git-svn-id:
 svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@6053
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/kernel/include/chtm.h      | 3 ++-
 os/kernel/src/chtm.c          | 6 ++++--
 os/ports/GCC/ARMCMx/chtypes.h | 1 +
 3 files changed, 7 insertions(+), 3 deletions(-)

(limited to 'os')

diff --git a/os/kernel/include/chtm.h b/os/kernel/include/chtm.h
index b72bff8e6..93e24d48c 100644
--- a/os/kernel/include/chtm.h
+++ b/os/kernel/include/chtm.h
@@ -63,8 +63,9 @@
 typedef struct {
   rtcnt_t               best;           /**< @brief Best measurement.       */
   rtcnt_t               worst;          /**< @brief Worst measurement.      */
-  rtcnt_t               cumulative;     /**< @brief Cumulative measurement. */
   rtcnt_t               last;           /**< @brief Last measurement.       */
+  ucnt_t                n;              /**< @brief Number of measurements. */
+  rttime_t              cumulative;     /**< @brief Cumulative measurement. */
 } time_measurement_t;
 
 /*===========================================================================*/
diff --git a/os/kernel/src/chtm.c b/os/kernel/src/chtm.c
index 2bec0cc1c..e54bacbbf 100644
--- a/os/kernel/src/chtm.c
+++ b/os/kernel/src/chtm.c
@@ -60,8 +60,9 @@ static inline void tm_stop(time_measurement_t *tmp,
                            rtcnt_t now,
                            rtcnt_t offset) {
 
+  tmp->n++;
   tmp->last = now - tmp->last - offset;
-  tmp->cumulative += tmp->last;
+  tmp->cumulative += (rttime_t)tmp->last;
   if (tmp->last > tmp->worst)
     tmp->worst = tmp->last;
   else if (tmp->last < tmp->best)
@@ -101,8 +102,9 @@ void chTMObjectInit(time_measurement_t *tmp) {
 
   tmp->best       = (rtcnt_t)-1;
   tmp->worst      = (rtcnt_t)0;
-  tmp->cumulative = (rtcnt_t)0;
   tmp->last       = (rtcnt_t)0;
+  tmp->n          = (ucnt_t)0;
+  tmp->cumulative = (rttime_t)0;
 }
 
 /**
diff --git a/os/ports/GCC/ARMCMx/chtypes.h b/os/ports/GCC/ARMCMx/chtypes.h
index f20c43bd8..bf9932b93 100644
--- a/os/ports/GCC/ARMCMx/chtypes.h
+++ b/os/ports/GCC/ARMCMx/chtypes.h
@@ -36,6 +36,7 @@
 typedef bool            bool_t;         /**< Fast boolean type.             */
 typedef uint32_t        systime_t;      /**< System time.                   */
 typedef uint32_t        rtcnt_t;        /**< Realtime counter.              */
+typedef uint64_t        rttime_t;       /**< Time accumulator.              */
 typedef uint32_t        syssts_t;       /**< System status word.            */
 typedef uint8_t         tmode_t;        /**< Thread flags.                  */
 typedef uint8_t         tstate_t;       /**< Thread state.                  */
-- 
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