[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/include/kernel/mutex.h b/src/bsp/lk/include/kernel/mutex.h
new file mode 100644
index 0000000..ae7e233
--- /dev/null
+++ b/src/bsp/lk/include/kernel/mutex.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2008-2014 Travis Geiselbrecht
+ * Copyright (c) 2012 Shantanu Gupta
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef __KERNEL_MUTEX_H
+#define __KERNEL_MUTEX_H
+
+#include <compiler.h>
+#include <debug.h>
+#include <stdint.h>
+#include <kernel/thread.h>
+
+__BEGIN_CDECLS;
+
+#define MUTEX_MAGIC 'mutx'
+
+typedef struct mutex {
+ uint32_t magic;
+ thread_t *holder;
+ int count;
+ wait_queue_t wait;
+} mutex_t;
+
+#define MUTEX_INITIAL_VALUE(m) \
+{ \
+ .magic = MUTEX_MAGIC, \
+ .holder = NULL, \
+ .count = 0, \
+ .wait = WAIT_QUEUE_INITIAL_VALUE((m).wait), \
+}
+
+/* Rules for Mutexes:
+ * - Mutexes are only safe to use from thread context.
+ * - Mutexes are non-recursive.
+*/
+
+void mutex_init(mutex_t *);
+void mutex_destroy(mutex_t *);
+status_t mutex_acquire_timeout(mutex_t *, lk_time_t); /* try to acquire the mutex with a timeout value */
+status_t mutex_release(mutex_t *);
+
+static inline status_t mutex_acquire(mutex_t *m) {
+ return mutex_acquire_timeout(m, INFINITE_TIME);
+}
+
+/* does the current thread hold the mutex? */
+static bool is_mutex_held(mutex_t *m) {
+ return m->holder == get_current_thread();
+}
+
+__END_CDECLS;
+#endif
+