starting on #1046 rtc for nRF

ports/nrf/common-hal/rtc/RTC.c

@@ -0,0 +1,58 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Nick Moore for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+
+#include "py/obj.h"
+#include "py/runtime.h"
+#include "lib/timeutils/timeutils.h"
+#include "shared-bindings/rtc/__init__.h"
+#include "supervisor/shared/translate.h"
+
+void rtc_init(void) {
+}
+
+void common_hal_rtc_get_time(timeutils_struct_time_t *tm) {
+    tm->tm_year = 2000;
+    tm->tm_mon  = 1;
+    tm->tm_mday = 2;
+    tm->tm_hour = 3;
+    tm->tm_min  = 4;
+    tm->tm_sec  = 5;
+    tm->tm_wday = 6;
+    tm->tm_yday = 2;
+}
+
+void common_hal_rtc_set_time(timeutils_struct_time_t *tm) {
+}
+
+// A positive value speeds up the clock by removing clock cycles.
+int common_hal_rtc_get_calibration(void) {
+    return 0;
+}
+
+void common_hal_rtc_set_calibration(int calibration) {
+}

ports/nrf/common-hal/rtc/RTC.h

@@ -0,0 +1,32 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Noralf Trønnes
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef MICROPY_INCLUDED_NRF_COMMON_HAL_RTC_RTC_H
+#define MICROPY_INCLUDED_NRF_COMMON_HAL_RTC_RTC_H
+
+extern void rtc_init(void);
+
+#endif  // MICROPY_INCLUDED_NRF_COMMON_HAL_RTC_RTC_H

ports/nrf/mpconfigport.h

@@ -57,5 +57,4 @@
     CIRCUITPY_COMMON_ROOT_POINTERS \
     ble_drv_evt_handler_entry_t* ble_drv_evt_handler_entries; \
 
-
 #endif  // NRF5_MPCONFIGPORT_H__

ports/nrf/mpconfigport.mk

@@ -23,7 +23,7 @@ CIRCUITPY_I2CSLAVE = 0
 CIRCUITPY_NVM = 0
 
 # rtc not yet implemented
-CIRCUITPY_RTC = 0
+CIRCUITPY_RTC = 1
 
 # frequencyio not yet implemented
 CIRCUITPY_FREQUENCYIO = 0

ports/nrf/supervisor/port.c

@@ -45,8 +45,11 @@
 #include "common-hal/pulseio/PWMOut.h"
 #include "common-hal/pulseio/PulseOut.h"
 #include "common-hal/pulseio/PulseIn.h"
+#include "common-hal/rtc/RTC.h"
 #include "tick.h"
 
+#include "shared-bindings/rtc/__init__.h"
+
 static void power_warning_handler(void) {
     reset_into_safe_mode(BROWNOUT);
 }
@@ -71,6 +74,7 @@ safe_mode_t port_init(void) {
 
     // Configure millisecond timer initialization.
     tick_init();
+    rtc_init();
 
     // Will do usb_init() if chip supports USB.
     board_init();
@@ -90,6 +94,7 @@ void reset_port(void) {
     pulseout_reset();
     pulsein_reset();
     timers_reset();
+    rtc_reset();
 
     bleio_reset();