Diff: targets/TARGET_Realtek/TARGET_AMEBA/rtc_api.c

Revision:

167:e84263d55307

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_Realtek/TARGET_AMEBA/rtc_api.c	Wed Jun 21 17:46:44 2017 +0100
@@ -0,0 +1,71 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2013-2016 Realtek Semiconductor Corp.
+ *
+ * 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.
+ */
+
+#include "rtc_api.h"
+
+#if DEVICE_RTC
+#include <time.h>
+#include "timer_api.h"      // software-RTC: use a g-timer for the tick of the RTC
+#include "mbed_mktime.h"
+
+#define SW_RTC_TIMER_ID        TIMER4
+
+static gtimer_t sw_rtc;
+static int sw_rtc_en=0;
+static time_t rtc_time;
+
+void sw_rtc_tick_handler(uint32_t id)
+{
+    rtc_time++;
+}
+
+void rtc_init(void)
+{
+    // Initial a periodical timer
+    gtimer_init(&sw_rtc, SW_RTC_TIMER_ID);
+    // Tick every 1 sec
+    gtimer_start_periodical(&sw_rtc, 1000000, (void*)sw_rtc_tick_handler, (uint32_t)&sw_rtc);
+    sw_rtc_en = 1;
+}
+
+void rtc_free(void)
+{
+    sw_rtc_en = 0;
+    gtimer_stop(&sw_rtc);
+    gtimer_deinit(&sw_rtc);
+}
+
+int rtc_isenabled(void)
+{
+    return(sw_rtc_en);
+}
+
+time_t rtc_read(void)
+{
+    return rtc_time;
+}
+
+void rtc_write(time_t t)
+{
+    gtimer_stop(&sw_rtc);
+
+    // Set the RTC
+    rtc_time = t;
+
+    gtimer_start(&sw_rtc);    
+}
+
+#endif  // endof "#if DEVICE_RTC"