ChibiOS 2.6.8, until I can figure out where to get it from git.

2025-08-23 04:07:42 +00:00 · 2015-07-08 08:40:23 -07:00
parent dc6fee8370
commit e1eea8e08a
1929 changed files with 575326 additions and 0 deletions
--- a/firmware/chibios/os/kernel/include/chsem.h
+++ b/firmware/chibios/os/kernel/include/chsem.h
@@ -0,0 +1,125 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+                 2011,2012,2013 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/>.
+
+                                      ---
+
+    A special exception to the GPL can be applied should you wish to distribute
+    a combined work that includes ChibiOS/RT, without being obliged to provide
+    the source code for any proprietary components. See the file exception.txt
+    for full details of how and when the exception can be applied.
+*/
+
+/**
+ * @file    chsem.h
+ * @brief   Semaphores macros and structures.
+ *
+ * @addtogroup semaphores
+ * @{
+ */
+
+#ifndef _CHSEM_H_
+#define _CHSEM_H_
+
+#if CH_USE_SEMAPHORES || defined(__DOXYGEN__)
+
+/**
+ * @brief   Semaphore structure.
+ */
+typedef struct Semaphore {
+  ThreadsQueue          s_queue;    /**< @brief Queue of the threads sleeping
+                                                on this semaphore.          */
+  cnt_t                 s_cnt;      /**< @brief The semaphore counter.      */
+} Semaphore;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void chSemInit(Semaphore *sp, cnt_t n);
+  void chSemReset(Semaphore *sp, cnt_t n);
+  void chSemResetI(Semaphore *sp, cnt_t n);
+  msg_t chSemWait(Semaphore *sp);
+  msg_t chSemWaitS(Semaphore *sp);
+  msg_t chSemWaitTimeout(Semaphore *sp, systime_t time);
+  msg_t chSemWaitTimeoutS(Semaphore *sp, systime_t time);
+  void chSemSignal(Semaphore *sp);
+  void chSemSignalI(Semaphore *sp);
+  void chSemAddCounterI(Semaphore *sp, cnt_t n);
+#if CH_USE_SEMSW
+  msg_t chSemSignalWait(Semaphore *sps, Semaphore *spw);
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+/**
+ * @brief   Data part of a static semaphore initializer.
+ * @details This macro should be used when statically initializing a semaphore
+ *          that is part of a bigger structure.
+ *
+ * @param[in] name      the name of the semaphore variable
+ * @param[in] n         the counter initial value, this value must be
+ *                      non-negative
+ */
+#define _SEMAPHORE_DATA(name, n) {_THREADSQUEUE_DATA(name.s_queue), n}
+
+/**
+ * @brief   Static semaphore initializer.
+ * @details Statically initialized semaphores require no explicit
+ *          initialization using @p chSemInit().
+ *
+ * @param[in] name      the name of the semaphore variable
+ * @param[in] n         the counter initial value, this value must be
+ *                      non-negative
+ */
+#define SEMAPHORE_DECL(name, n) Semaphore name = _SEMAPHORE_DATA(name, n)
+
+/**
+ * @name    Macro Functions
+ * @{
+ */
+/**
+ * @brief   Decreases the semaphore counter.
+ * @details This macro can be used when the counter is known to be positive.
+ *
+ * @iclass
+ */
+#define chSemFastWaitI(sp)      ((sp)->s_cnt--)
+
+/**
+ * @brief   Increases the semaphore counter.
+ * @details This macro can be used when the counter is known to be not
+ *          negative.
+ *
+ * @iclass
+ */
+#define chSemFastSignalI(sp)    ((sp)->s_cnt++)
+
+/**
+ * @brief   Returns the semaphore counter current value.
+ *
+ * @iclass
+ */
+#define chSemGetCounterI(sp)    ((sp)->s_cnt)
+/** @} */
+
+#endif /* CH_USE_SEMAPHORES */
+
+#endif /* _CHSEM_H_ */
+
+/** @} */