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-rw-r--r--os/kernel/src/chsys.c260
1 files changed, 130 insertions, 130 deletions
diff --git a/os/kernel/src/chsys.c b/os/kernel/src/chsys.c
index 8c252609d..2003f690b 100644
--- a/os/kernel/src/chsys.c
+++ b/os/kernel/src/chsys.c
@@ -1,130 +1,130 @@
-/*
- ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file chsys.c
- * @brief System related code.
- *
- * @addtogroup system
- * @{
- */
-
-#include "ch.h"
-
-static WORKING_AREA(idle_thread_wa, IDLE_THREAD_STACK_SIZE);
-
-/**
- * @brief This function implements the idle thread infinite loop.
- * @details The function puts the processor in the lowest power mode capable
- * to serve interrupts.<br>
- * The priority is internally set to the minimum system value so
- * that this thread is executed only if there are no other ready
- * threads in the system.
- *
- * @param[in] p the thread parameter, unused in this scenario
- */
-static void idle_thread(void *p) {
-
- (void)p;
- while (TRUE) {
- port_wait_for_interrupt();
- IDLE_LOOP_HOOK();
- }
-}
-
-/**
- * @brief ChibiOS/RT initialization.
- * @details After executing this function the current instructions stream
- * becomes the main thread.
- * @note Interrupts should be still disabled when @p chSysInit() is invoked
- * and are internally enabled.
- * @note The main thread is created with priority @p NORMALPRIO.
- */
-void chSysInit(void) {
- static Thread mainthread;
-
- port_init();
- scheduler_init();
- vt_init();
-#if CH_USE_MEMCORE
- core_init();
-#endif
-#if CH_USE_HEAP
- heap_init();
-#endif
-#if CH_DBG_ENABLE_TRACE
- trace_init();
-#endif
-
- /* Now this instructions flow becomes the main thread.*/
- (currp = init_thread(&mainthread, NORMALPRIO))->p_state = THD_STATE_CURRENT;
- chSysEnable();
-
- /* This thread has the lowest priority in the system, its role is just to
- serve interrupts in its context while keeping the lowest energy saving
- mode compatible with the system status.*/
- chThdCreateStatic(idle_thread_wa, sizeof(idle_thread_wa), IDLEPRIO,
- (tfunc_t)idle_thread, NULL);
-}
-
-/**
- * @brief Handles time ticks for round robin preemption and timer increments.
- * @details Decrements the remaining time quantum of the running thread
- * and preempts it when the quantum is used up. Increments system
- * time and manages the timers.
- *
- * @note The frequency of the timer determines the system tick granularity
- * and, together with the @p CH_TIME_QUANTUM macro, the round robin
- * interval.
- */
-void chSysTimerHandlerI(void) {
-
-#if CH_TIME_QUANTUM > 0
- /* Running thread has not used up quantum yet? */
- if (rlist.r_preempt > 0)
- /* Decrement remaining quantum.*/
- rlist.r_preempt--;
-#endif
-#if CH_DBG_THREADS_PROFILING
- currp->p_time++;
-#endif
- chVTDoTickI();
-}
-
-#if CH_USE_NESTED_LOCKS && !CH_OPTIMIZE_SPEED
-void chSysLock(void) {
-
- chDbgAssert(currp->p_locks >= 0,
- "chSysLock(), #1",
- "negative nesting counter");
- if (currp->p_locks++ == 0)
- port_lock();
-}
-
-void chSysUnlock(void) {
-
- chDbgAssert(currp->p_locks > 0,
- "chSysUnlock(), #1",
- "non-positive nesting counter");
- if (--currp->p_locks == 0)
- port_unlock();
-}
-#endif /* CH_USE_NESTED_LOCKS && !CH_OPTIMIZE_SPEED */
-
-/** @} */
+/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file chsys.c
+ * @brief System related code.
+ *
+ * @addtogroup system
+ * @{
+ */
+
+#include "ch.h"
+
+static WORKING_AREA(idle_thread_wa, IDLE_THREAD_STACK_SIZE);
+
+/**
+ * @brief This function implements the idle thread infinite loop.
+ * @details The function puts the processor in the lowest power mode capable
+ * to serve interrupts.<br>
+ * The priority is internally set to the minimum system value so
+ * that this thread is executed only if there are no other ready
+ * threads in the system.
+ *
+ * @param[in] p the thread parameter, unused in this scenario
+ */
+static void idle_thread(void *p) {
+
+ (void)p;
+ while (TRUE) {
+ port_wait_for_interrupt();
+ IDLE_LOOP_HOOK();
+ }
+}
+
+/**
+ * @brief ChibiOS/RT initialization.
+ * @details After executing this function the current instructions stream
+ * becomes the main thread.
+ * @note Interrupts should be still disabled when @p chSysInit() is invoked
+ * and are internally enabled.
+ * @note The main thread is created with priority @p NORMALPRIO.
+ */
+void chSysInit(void) {
+ static Thread mainthread;
+
+ port_init();
+ scheduler_init();
+ vt_init();
+#if CH_USE_MEMCORE
+ core_init();
+#endif
+#if CH_USE_HEAP
+ heap_init();
+#endif
+#if CH_DBG_ENABLE_TRACE
+ trace_init();
+#endif
+
+ /* Now this instructions flow becomes the main thread.*/
+ (currp = init_thread(&mainthread, NORMALPRIO))->p_state = THD_STATE_CURRENT;
+ chSysEnable();
+
+ /* This thread has the lowest priority in the system, its role is just to
+ serve interrupts in its context while keeping the lowest energy saving
+ mode compatible with the system status.*/
+ chThdCreateStatic(idle_thread_wa, sizeof(idle_thread_wa), IDLEPRIO,
+ (tfunc_t)idle_thread, NULL);
+}
+
+/**
+ * @brief Handles time ticks for round robin preemption and timer increments.
+ * @details Decrements the remaining time quantum of the running thread
+ * and preempts it when the quantum is used up. Increments system
+ * time and manages the timers.
+ *
+ * @note The frequency of the timer determines the system tick granularity
+ * and, together with the @p CH_TIME_QUANTUM macro, the round robin
+ * interval.
+ */
+void chSysTimerHandlerI(void) {
+
+#if CH_TIME_QUANTUM > 0
+ /* Running thread has not used up quantum yet? */
+ if (rlist.r_preempt > 0)
+ /* Decrement remaining quantum.*/
+ rlist.r_preempt--;
+#endif
+#if CH_DBG_THREADS_PROFILING
+ currp->p_time++;
+#endif
+ chVTDoTickI();
+}
+
+#if CH_USE_NESTED_LOCKS && !CH_OPTIMIZE_SPEED
+void chSysLock(void) {
+
+ chDbgAssert(currp->p_locks >= 0,
+ "chSysLock(), #1",
+ "negative nesting counter");
+ if (currp->p_locks++ == 0)
+ port_lock();
+}
+
+void chSysUnlock(void) {
+
+ chDbgAssert(currp->p_locks > 0,
+ "chSysUnlock(), #1",
+ "non-positive nesting counter");
+ if (--currp->p_locks == 0)
+ port_unlock();
+}
+#endif /* CH_USE_NESTED_LOCKS && !CH_OPTIMIZE_SPEED */
+
+/** @} */
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