Merge pull request #7474 from RetiredWizard/broadcomRTC

Broadcom port: Add 'fake' RTC support

Author: tannewt

ports/broadcom/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
+ * Copyright (c) 2019 Artur Pacholec
+ *
+ * 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 "shared/timeutils/timeutils.h"
+#include "supervisor/port.h"
+
+// This is the time in seconds since 2000 that the RTC was started.
+// TODO: Change the offset to ticks so that it can be a subsecond adjustment.
+static uint32_t rtc_offset = 0;
+
+void common_hal_rtc_get_time(timeutils_struct_time_t *tm) {
+    uint64_t ticks_s = port_get_raw_ticks(NULL) / 1024;
+    timeutils_seconds_since_2000_to_struct_time(rtc_offset + ticks_s, tm);
+}
+
+void common_hal_rtc_set_time(timeutils_struct_time_t *tm) {
+    uint64_t ticks_s = port_get_raw_ticks(NULL) / 1024;
+    uint32_t epoch_s = timeutils_seconds_since_2000(
+        tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec
+        );
+    rtc_offset = epoch_s - ticks_s;
+}
+
+int common_hal_rtc_get_calibration(void) {
+    return 0;
+}
+
+void common_hal_rtc_set_calibration(int calibration) {
+    mp_raise_NotImplementedError_varg(translate("%q"), MP_QSTR_calibration);
+}

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

@@ -0,0 +1,33 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Noralf Trønnes
+ * Copyright (c) 2019 Artur Pacholec
+ *
+ * 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_BROADCOM_COMMON_HAL_RTC_RTC_H
+#define MICROPY_INCLUDED_BROADCOM_COMMON_HAL_RTC_RTC_H
+
+extern void rtc_reset(void);
+
+#endif  // MICROPY_INCLUDED_BROADCOM_COMMON_HAL_RTC_RTC_H

ports/broadcom/common-hal/rtc/__init__.c

@@ -15,7 +15,6 @@ CIRCUITPY_PARALLELDISPLAY = 0
 CIRCUITPY_PULSEIO = 0
 CIRCUITPY_PWMIO = 0
 CIRCUITPY_ROTARYIO = 0
-CIRCUITPY_RTC = 0
 
 CIRCUITPY_SDIOIO = 1
 CIRCUITPY_VIDEOCORE = 1

ports/broadcom/mpconfigport.mk

@@ -32,7 +32,7 @@
 
 #include "genhdr/mpversion.h"
 
-// #include "common-hal/rtc/RTC.h"
+#include "common-hal/rtc/RTC.h"
 #include "common-hal/busio/I2C.h"
 #include "common-hal/busio/SPI.h"
 #include "common-hal/busio/UART.h"