[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/bsp/lk/include/kernel/event.h b/src/bsp/lk/include/kernel/event.h
new file mode 100644
index 0000000..65074ca
--- /dev/null
+++ b/src/bsp/lk/include/kernel/event.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2008-2014 Travis Geiselbrecht
+ *
+ * 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_EVENT_H
+#define __KERNEL_EVENT_H
+
+#include <compiler.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <kernel/thread.h>
+
+__BEGIN_CDECLS;
+
+#define EVENT_MAGIC 'evnt'
+
+typedef struct event {
+ int magic;
+ bool signalled;
+ uint flags;
+ wait_queue_t wait;
+} event_t;
+
+#define EVENT_FLAG_AUTOUNSIGNAL 1
+
+#define EVENT_INITIAL_VALUE(e, initial, _flags) \
+{ \
+ .magic = EVENT_MAGIC, \
+ .signalled = initial, \
+ .flags = _flags, \
+ .wait = WAIT_QUEUE_INITIAL_VALUE((e).wait), \
+}
+
+/* Rules for Events:
+ * - Events may be signaled from interrupt context *but* the reschedule
+ * parameter must be false in that case.
+ * - Events may not be waited upon from interrupt context.
+ * - Events without FLAG_AUTOUNSIGNAL:
+ * - Wake up any waiting threads when signaled.
+ * - Continue to do so (no threads will wait) until unsignaled.
+ * - Events with FLAG_AUTOUNSIGNAL:
+ * - If one or more threads are waiting when signaled, one thread will
+ * be woken up and return. The signaled state will not be set.
+ * - If no threads are waiting when signaled, the Event will remain
+ * in the signaled state until a thread attempts to wait (at which
+ * time it will unsignal atomicly and return immediately) or
+ * event_unsignal() is called.
+*/
+
+void event_init(event_t *, bool initial, uint flags);
+void event_destroy(event_t *);
+status_t event_wait_timeout(event_t *, lk_time_t); /* wait on the event with a timeout */
+status_t event_signal(event_t *, bool reschedule);
+status_t event_unsignal(event_t *);
+
+static inline bool event_initialized(event_t *e) {
+ return e->magic == EVENT_MAGIC;
+}
+
+static inline status_t event_wait(event_t *e) {
+ return event_wait_timeout(e, INFINITE_TIME);
+}
+
+__END_CDECLS;
+
+#endif
+