[DeviceDriver] Add power management device driver.

1 files changed, 54 insertions, 0 deletions

diff --git a/examples/pm/timer_app.c b/examples/pm/timer_app.c
new file mode 100644
index 0000000000..73faf52d0a
--- /dev/null
+++ b/examples/pm/timer_app.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-08-07     Tanek        first implementation
+ */
+
+#include <board.h>
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#ifndef RT_USING_TIMER_SOFT
+    #error "Please enable soft timer feature!"
+#endif
+
+#define TIMER_APP_DEFAULT_TICK  (RT_TICK_PER_SECOND * 2)
+
+#ifdef RT_USING_PM
+
+static rt_timer_t timer1;
+
+static void _timeout_entry(void *parameter)
+{
+    rt_kprintf("current tick: %ld\n", rt_tick_get());
+}
+
+static int timer_app_init(void)
+{
+    timer1 = rt_timer_create("timer_app",
+                             _timeout_entry,
+                             RT_NULL,
+                             TIMER_APP_DEFAULT_TICK,
+                             RT_TIMER_FLAG_PERIODIC | RT_TIMER_FLAG_SOFT_TIMER);
+    if (timer1 != RT_NULL)
+    {
+        rt_timer_start(timer1);
+
+        /* keep in timer mode */
+        rt_pm_request(PM_SLEEP_MODE_TIMER);
+
+        return 0;
+    }
+    else
+    {
+        return -1;
+    }
+}
+INIT_EXPORT_APP(timer_app_init);
+
+#endif /* RT_USING_PM */
+