cleanup code comments and deprecate rt_system_timer_init function.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2045 bbd45198-f89e-11dd-88c7-29a3b14d5316

src/scheduler.c

@@ -38,11 +38,11 @@ struct rt_thread *rt_current_thread;
 rt_uint8_t rt_current_priority;
 
 #if RT_THREAD_PRIORITY_MAX > 32
-/* maximun priority level, 256 */
+/* Maximum priority level, 256 */
 rt_uint32_t rt_thread_ready_priority_group;
 rt_uint8_t rt_thread_ready_table[32];
 #else
-/* maximun priority level, 32 */
+/* Maximum priority level, 32 */
 rt_uint32_t rt_thread_ready_priority_group;
 #endif
 
@@ -140,15 +140,15 @@ void rt_system_scheduler_init(void)
 	rt_current_priority = RT_THREAD_PRIORITY_MAX - 1;
 	rt_current_thread = RT_NULL;
 
-	/* init ready priority group */
+	/* initialize ready priority group */
 	rt_thread_ready_priority_group = 0;
 
 #if RT_THREAD_PRIORITY_MAX > 32
-	/* init ready table */
+	/* initialize ready table */
 	rt_memset(rt_thread_ready_table, 0, sizeof(rt_thread_ready_table));
 #endif
 
-	/* init thread defunct */
+	/* initialize thread defunct */
 	rt_list_init(&rt_thread_defunct);
 }
 

src/timer.c

@@ -23,7 +23,7 @@
 #include <rthw.h>
 
 /* hard timer list */
-static rt_list_t rt_timer_list;
+static rt_list_t rt_timer_list = RT_LIST_OBJECT_INIT(rt_timer_list);
 
 #ifdef RT_USING_TIMER_SOFT
 /* soft timer list */
@@ -500,15 +500,12 @@ static void rt_thread_timer_entry(void *parameter)
  * @ingroup SystemInit
  *
  * This function will initialize system timer
+ *
+ * @deprecated since 1.1.0, this function does not need to be invoked
+ * in the system initialization.
  */
 void rt_system_timer_init(void)
 {
-	rt_list_init(&rt_timer_list);
-
-#ifdef RT_USING_TIMER_SOFT
-	rt_list_init(&rt_soft_timer_list);
-	rt_sem_init(&timer_sem, "timer", 0, RT_IPC_FLAG_FIFO);
-#endif
 }
 
 /**
@@ -519,6 +516,9 @@ void rt_system_timer_init(void)
 void rt_system_timer_thread_init(void)
 {
 #ifdef RT_USING_TIMER_SOFT
+	rt_list_init(&rt_soft_timer_list);
+	rt_sem_init(&timer_sem, "timer", 0, RT_IPC_FLAG_FIFO);
+
 	/* start software timer thread */
 	rt_thread_init(&timer_thread,
 				   "timer",