From 404fe109397d80016f71c57f42ee6cd0cbfe96d1 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sat, 17 Oct 2009 15:42:19 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1236
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/kernel/include/scheduler.h |  4 +---
 os/kernel/include/threads.h   |  4 +---
 os/kernel/src/chschd.c        | 17 ++++++++++-------
 os/kernel/src/chsys.c         |  2 +-
 os/kernel/src/chthreads.c     |  2 --
 os/ports/GCC/ARMCM3/chcore.c  |  2 +-
 6 files changed, 14 insertions(+), 17 deletions(-)

(limited to 'os')

diff --git a/os/kernel/include/scheduler.h b/os/kernel/include/scheduler.h
index a8196a9b6..539c678fa 100644
--- a/os/kernel/include/scheduler.h
+++ b/os/kernel/include/scheduler.h
@@ -68,7 +68,7 @@ typedef struct {
   tprio_t               r_prio;         /**< This field must be initialized to
                                              zero.*/
   /* End of the fields shared with the Thread structure.*/
-#if CH_USE_ROUNDROBIN
+#if CH_TIME_QUANTUM > 0
   cnt_t                 r_preempt;      /**< Round robin counter.*/
 #endif
 #ifndef CH_CURRP_REGISTER_CACHE
@@ -98,9 +98,7 @@ extern "C" {
   void chSchDoRescheduleI(void);
   void chSchRescheduleS(void);
   bool_t chSchIsRescRequiredExI(void);
-#if CH_USE_ROUNDROBIN
   void chSchDoYieldS(void);
-#endif
 #ifdef __cplusplus
 }
 #endif
diff --git a/os/kernel/include/threads.h b/os/kernel/include/threads.h
index ccafc3e96..edcf1f42a 100644
--- a/os/kernel/include/threads.h
+++ b/os/kernel/include/threads.h
@@ -179,13 +179,11 @@ extern "C" {
   void chThdTerminate(Thread *tp);
   void chThdSleep(systime_t time);
   void chThdSleepUntil(systime_t time);
+  void chThdYield(void);
   void chThdExit(msg_t msg);
 #if CH_USE_WAITEXIT
   msg_t chThdWait(Thread *tp);
 #endif
-#if CH_USE_ROUNDROBIN
-  void chThdYield(void);
-#endif
 #ifdef __cplusplus
 }
 #endif
diff --git a/os/kernel/src/chschd.c b/os/kernel/src/chschd.c
index 7c65e3fd6..150169481 100644
--- a/os/kernel/src/chschd.c
+++ b/os/kernel/src/chschd.c
@@ -39,7 +39,7 @@ void scheduler_init(void) {
 
   queue_init(&rlist.r_queue);
   rlist.r_prio = NOPRIO;
-#if CH_USE_ROUNDROBIN
+#if CH_TIME_QUANTUM > 0
   rlist.r_preempt = CH_TIME_QUANTUM;
 #endif
 }
@@ -83,7 +83,7 @@ void chSchGoSleepS(tstate_t newstate) {
 
   (otp = currp)->p_state = newstate;
   (currp = fifo_remove(&rlist.r_queue))->p_state = PRCURR;
-#if CH_USE_ROUNDROBIN
+#if CH_TIME_QUANTUM > 0
   rlist.r_preempt = CH_TIME_QUANTUM;
 #endif
   chDbgTrace(otp, currp);
@@ -176,7 +176,7 @@ void chSchWakeupS(Thread *ntp, msg_t msg) {
   else {
     Thread *otp = currp;
     chSchReadyI(otp);
-#if CH_USE_ROUNDROBIN
+#if CH_TIME_QUANTUM > 0
     rlist.r_preempt = CH_TIME_QUANTUM;
 #endif
     (currp = ntp)->p_state = PRCURR;
@@ -197,7 +197,7 @@ void chSchDoRescheduleI(void) {
   /* Pick the first thread from the ready queue and makes it current.*/
   (currp = fifo_remove(&rlist.r_queue))->p_state = PRCURR;
   chSchReadyI(otp);
-#if CH_USE_ROUNDROBIN
+#if CH_TIME_QUANTUM > 0
   rlist.r_preempt = CH_TIME_QUANTUM;
 #endif
   chDbgTrace(otp, currp);
@@ -229,7 +229,7 @@ void chSchRescheduleS(void) {
 bool_t chSchIsRescRequiredExI(void) {
   tprio_t p1 = firstprio(&rlist.r_queue);
   tprio_t p2 = currp->p_prio;
-#if CH_USE_ROUNDROBIN
+#if CH_TIME_QUANTUM > 0
   /* If the running thread has not reached its time quantum, reschedule only
    * if the first thread on the ready queue has a higher priority.
    * Otherwise, if the running thread has used up its time quantum, reschedule
@@ -242,7 +242,11 @@ bool_t chSchIsRescRequiredExI(void) {
 #endif
 }
 
-#if CH_USE_ROUNDROBIN
+/**
+ * @brief Yields the time slot.
+ * @details Yields the CPU control to the next thread in the ready list with
+ *          equal priority, if any.
+ */
 void chSchDoYieldS(void) {
 
   if (chSchCanYieldS()) {
@@ -269,6 +273,5 @@ void chSchDoYieldS(void) {
     chSysSwitchI(otp, currp);
   }
 }
-#endif /* CH_USE_ROUNDROBIN */
 
 /** @} */
diff --git a/os/kernel/src/chsys.c b/os/kernel/src/chsys.c
index 326699ea0..06fdbc822 100644
--- a/os/kernel/src/chsys.c
+++ b/os/kernel/src/chsys.c
@@ -98,7 +98,7 @@ void chSysInit(void) {
  */
 void chSysTimerHandlerI(void) {
 
-#if CH_USE_ROUNDROBIN
+#if CH_TIME_QUANTUM > 0
   /* running thread has not used up quantum yet? */
   if (rlist.r_preempt > 0)
     /* decrement remaining quantum */
diff --git a/os/kernel/src/chthreads.c b/os/kernel/src/chthreads.c
index 89d1d6329..70b0c3ace 100644
--- a/os/kernel/src/chthreads.c
+++ b/os/kernel/src/chthreads.c
@@ -293,7 +293,6 @@ void chThdSleepUntil(systime_t time) {
   chSysUnlock();
 }
 
-#if CH_USE_ROUNDROBIN
 /**
  * @brief Yields the time slot.
  * @details Yields the CPU control to the next thread in the ready list with
@@ -305,7 +304,6 @@ void chThdYield(void) {
   chSchDoYieldS();
   chSysUnlock();
 }
-#endif /* CH_USE_ROUNDROBIN */
 
 /**
  * @brief Terminates the current thread by specifying an exit status code.
diff --git a/os/ports/GCC/ARMCM3/chcore.c b/os/ports/GCC/ARMCM3/chcore.c
index 8f99d3dec..a2334dcf7 100644
--- a/os/ports/GCC/ARMCM3/chcore.c
+++ b/os/ports/GCC/ARMCM3/chcore.c
@@ -158,7 +158,7 @@ void PendSVVector(void) {
   (otp = currp)->p_ctx.r13 = sp_thd;
   (currp = fifo_remove(&rlist.r_queue))->p_state = PRCURR;
   chSchReadyI(otp);
-#if CH_USE_ROUNDROBIN
+#if CH_TIME_QUANTUM > 0
   /* set the round-robin time quantum */
   rlist.r_preempt = CH_TIME_QUANTUM;
 #endif
-- 
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