Diff: platform/source/mbed_os_timer.h

Revision:

1:9db0e321a9f4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/platform/source/mbed_os_timer.h	Tue Dec 31 06:02:27 2019 +0000
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2006-2019, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef MBED_MBED_SLEEP_TIMER_H
+#define MBED_MBED_SLEEP_TIMER_H
+
+#include "platform/source/SysTimer.h"
+
+#if MBED_CONF_RTOS_PRESENT
+extern "C" {
+#include "rtx_lib.h"
+}
+#endif
+
+namespace mbed {
+namespace internal {
+
+#if MBED_CONF_RTOS_PRESENT
+#define OS_TICK_US (1000000 / OS_TICK_FREQ)
+#else
+#define OS_TICK_US 1000
+#endif
+typedef SysTimer<OS_TICK_US> OsTimer;
+
+/* A SysTimer is used to provide the timed sleep - this provides access to share it for
+ * other use, such as ticks. If accessed this way, it must not be in use when a sleep function below is called.
+ */
+extern OsTimer *os_timer;
+OsTimer *init_os_timer();
+
+/* -1 is effectively "sleep forever" */
+uint64_t do_timed_sleep_absolute(uint64_t wake_time, bool (*wake_predicate)(void *) = NULL, void *wake_predicate_handle = NULL);
+
+#if MBED_CONF_RTOS_PRESENT
+/* Maximum sleep time is 2^32-1 ticks; timer is always set to achieve this */
+/* Assumes that ticker has been in use prior to call, so restricted to RTOS use */
+uint32_t do_timed_sleep_relative(uint32_t wake_delay, bool (*wake_predicate)(void *) = NULL, void *wake_predicate_handle = NULL);
+#else
+
+void do_untimed_sleep(bool (*wake_predicate)(void *), void *wake_predicate_handle = NULL);
+
+/* (uint32_t)-1 delay is sleep forever */
+
+void do_timed_sleep_relative_or_forever(uint32_t wake_delay, bool (*wake_predicate)(void *) = NULL, void *wake_predicate_handle = NULL);
+
+#endif
+
+}
+}
+
+#endif