Clean up test code

Separate/consolidate board initialization code, and a few functions
that are shared across tests. Update the Makefile accordingly.

Resolves #18

firmware/Test/Apps/stop.cpp

@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2020  Max Regan
+ *
+ * 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 <cinttypes>
+#include "printf.h"
+
+#include "Bsp/Drivers/RtcDriver.h"
+#include "Bsp/Drivers/LowPower.h"
+#include "Bsp/macros.h"
+
+#include "TestBoard.h"
+
+#include "test.h"
+
+using BSP::Time;
+using BSP::time_t;
+using BSP::ReturnCode;
+
+static void stop_for(time_t delay) {
+
+    ReturnCode rc = BSP::RtcDriver::set_wakeup_in(delay);
+    if (rc != ReturnCode::OK) {
+        g_test_uart.tx_blocking("Failed to set wakeup delay\r\n");
+        g_test_uart.tx_blocking(test_fail_text);
+        TEST_SPIN();
+    }
+
+
+    uint32_t pre_wakeups = BSP::RtcDriver::get_wakeup_count();
+    uint32_t pre_alarms = BSP::RtcDriver::get_alarm_count();
+    time_t before = Test::get_time();
+
+    while (pre_wakeups == BSP::RtcDriver::get_wakeup_count()) {
+        BSP::LowPower::stop();
+    }
+
+    time_t after = Test::get_time();
+    uint32_t post_wakeups = BSP::RtcDriver::get_wakeup_count();
+    uint32_t post_alarms = BSP::RtcDriver::get_alarm_count();
+
+    static char buffer[128] = { 0 };
+    snprintf(buffer, sizeof(buffer),
+             "Requested=%" PRIu32 " Actual=%" PRIu32
+             " Wakeups=%" PRId32 " Alarms=%" PRId32 "\r\n",
+             (uint32_t) Time::to_millis(delay),
+             (uint32_t) Time::to_millis(after - before),
+             post_wakeups - pre_wakeups,
+             post_alarms - pre_alarms);
+
+    g_test_uart.tx_blocking(buffer);
+}
+
+[[noreturn]] void main() {
+
+    board_init();
+    BSP::LowPower::init();
+
+    g_test_uart.tx_blocking(test_start_text);
+
+    for (uint32_t i = 0; i <= 1000; i++) {
+        stop_for(Time::millis(5));
+    }
+
+    for (uint32_t delay_millis = 1; delay_millis <= 1024; delay_millis *= 2) {
+        stop_for(Time::millis(delay_millis));
+    }
+
+    stop_for(Time::seconds(1));
+    stop_for(Time::seconds(2));
+    stop_for(Time::seconds(4));
+    stop_for(Time::seconds(60));
+
+    g_test_uart.tx_blocking(test_pass_text);
+
+    TEST_SPIN();
+}