Initial sources import 3/3

source files mainly done by Vincent.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

Change-Id: Ic2d1becd400c9b4b4a14d4a243af1bdf77d9c1e2

1 files changed, 41 insertions, 0 deletions

diff --git a/include/task_id.h b/include/task_id.h
new file mode 100644
index 0000000000..8b6e14721f
--- /dev/null
+++ b/include/task_id.h
@@ -0,0 +1,41 @@
+/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* define the task identifier of all compiled tasks */
+
+#ifndef __TASK_ID_H
+#define __TASK_ID_H
+
+/* define the name of the header containing the list of tasks */
+#define STRINGIFY0(name)  #name
+#define STRINGIFY(name)  STRINGIFY0(name)
+#define TASK_LIST STRINGIFY(TASKFILE)
+
+/* Task identifier (8 bits) */
+typedef uint8_t task_id_t;
+
+/**
+ * enumerate all tasks in the priority order
+ *
+ * the identifier of a task can be retrieved using the following constant:
+ * TASK_ID_<taskname> where <taskname> is the first parameter passed to the
+ * TASK macro in the TASK_LIST file.
+ */
+#define TASK(n, r, d) TASK_ID_##n,
+#include TASK_LIST
+enum {
+	TASK_ID_IDLE,
+	/* CONFIG_TASK_LIST is a macro coming from the TASK_LIST file */
+	CONFIG_TASK_LIST
+	/* Number of tasks */
+	TASK_ID_COUNT,
+	/* Special task identifiers */
+	TASK_ID_TIMER   = 0x1f, /* message from an expired timer */
+	TASK_ID_CURRENT = 0xfe, /* the currently running task */
+	TASK_ID_INVALID = 0xff  /* unable to find the task */
+};
+#undef TASK
+
+#endif  /* __TASK_ID_H */