Diff: targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/rtc_api.c

Revision:

0:38ceb79fef03

Child:

2:7aab896b1a3b

diff -r 000000000000 -r 38ceb79fef03 targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/rtc_api.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/rtc_api.c	Wed Nov 28 15:10:15 2018 +0000
@@ -0,0 +1,79 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * 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 || DEVICE_LPTICKER
+
+#include "pinmap.h"
+#include "fsl_rtc.h"
+#include "PeripheralPins.h"
+
+// changed PeterS 
+static bool rtc_time_set = true;
+
+void rtc_init(void)
+{
+    rtc_config_t rtcConfig;
+
+    RTC_GetDefaultConfig(&rtcConfig);
+    RTC_Init(RTC, &rtcConfig);
+
+    RTC_StartTimer(RTC);
+}
+
+void rtc_free(void)
+{
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+    /* Gate the module clock */
+    CLOCK_DisableClock(kCLOCK_Rtc0);
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+}
+
+/*
+ * Little check routine to see if the RTC has been initialized and time has been set
+ * 0 = Disabled, 1 = Enabled
+ */
+int rtc_isenabled(void)
+{
+#if !(defined(FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL) && FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL)
+    CLOCK_EnableClock(kCLOCK_Rtc0);
+#endif /* FSL_SDK_DISABLE_DRIVER_CLOCK_CONTROL */
+
+    const bool rtc_init_done = ((RTC->SR & RTC_SR_TCE_MASK) >> RTC_SR_TCE_SHIFT);
+
+    /* If RTC is not initialized, then disable the clock gate on exit. */
+    if(!rtc_init_done) {
+        rtc_free();
+    }
+
+    return (rtc_init_done & rtc_time_set);
+}
+
+time_t rtc_read(void)
+{
+    return (time_t)RTC->TSR;
+}
+
+void rtc_write(time_t t)
+{
+    RTC_StopTimer(RTC);
+    RTC->TSR = t;
+    RTC_StartTimer(RTC);
+
+    rtc_time_set = true;
+}
+
+#endif