testing/drivertest:add rtc test case.

Signed-off-by: cuiziwei <cuiziwei@xiaomi.com>

testing/drivertest/Makefile

@@ -29,4 +29,9 @@ MAINSRC  += drivertest_simple.c
 PROGNAME += cmocka_driver_simple
 endif
 
+ifneq ($(CONFIG_RTC),)
+MAINSRC  += drivertest_rtc.c
+PROGNAME += cmocka_driver_rtc
+endif
+
 include $(APPDIR)/Application.mk

testing/drivertest/drivertest_rtc.c

@@ -0,0 +1,161 @@
+/****************************************************************************
+ * apps/testing/drivertest/drivertest_rtc.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/ioctl.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <errno.h>
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <stdint.h>
+#include <cmocka.h>
+
+#include <nuttx/timers/rtc.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define RTC_DEFAULT_DEVPATH "/dev/rtc0"
+
+/****************************************************************************
+ * Private Type
+ ****************************************************************************/
+
+struct rtc_state_s
+{
+  char devpath[PATH_MAX];
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: show_usage
+ ****************************************************************************/
+
+static void show_usage(FAR const char *progname,
+                       FAR struct rtc_state_s *rtc_state, int exitcode)
+{
+  printf("Usage: %s -d <devpath>\n", progname);
+  printf("  [-d devpath] selects the PWM device.\n"
+         "  Default: %s Current: %s\n", RTC_DEFAULT_DEVPATH,
+         rtc_state->devpath);
+  exit(exitcode);
+}
+
+/****************************************************************************
+ * Name: parse_commandline
+ ****************************************************************************/
+
+static void parse_commandline(FAR struct rtc_state_s *rtc_state, int argc,
+                              FAR char **argv)
+{
+  int ch;
+
+  while ((ch = getopt(argc, argv, "d:")) != ERROR)
+    {
+      switch (ch)
+        {
+          case 'd':
+            strncpy(rtc_state->devpath, optarg, sizeof(rtc_state->devpath));
+            rtc_state->devpath[sizeof(rtc_state->devpath) - 1] = '\0';
+            break;
+
+          case '?':
+            printf("Unsupported option: %s\n", optarg);
+            show_usage(argv[0], rtc_state, EXIT_FAILURE);
+        }
+    }
+}
+
+/****************************************************************************
+ * Name: test_case_rtc
+ ****************************************************************************/
+
+static void test_case_rtc(FAR void **state)
+{
+  int fd;
+  int ret;
+  bool have_set_time;
+  char timbuf[64];
+  struct rtc_time set_time;
+  struct rtc_time rd_time;
+  FAR struct rtc_state_s *rtc_state;
+
+  rtc_state = (FAR struct rtc_state_s *)*state;
+
+  fd = open(rtc_state->devpath, O_WRONLY);
+  assert_return_code(fd, 0);
+
+  ret = ioctl(fd, RTC_HAVE_SET_TIME,
+              (unsigned long)((uintptr_t)&have_set_time));
+  assert_return_code(ret, OK);
+  assert_true(have_set_time);
+
+  ret = ioctl(fd, RTC_SET_TIME, (unsigned long)((uintptr_t)&set_time));
+  assert_return_code(ret, OK);
+
+  ret = ioctl(fd, RTC_RD_TIME, (unsigned long)((uintptr_t)&rd_time));
+  assert_return_code(ret, OK);
+  ret = strftime(timbuf, sizeof(timbuf), "%a, %b %d %H:%M:%S %Y",
+                 (FAR struct tm *)&rd_time);
+  assert_return_code(ret, OK);
+
+  close(fd);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: main
+ ****************************************************************************/
+
+int main(int argc, FAR char *argv[])
+{
+  struct rtc_state_s rtc_state =
+  {
+    .devpath = RTC_DEFAULT_DEVPATH,
+  };
+
+  parse_commandline(&rtc_state, argc, argv);
+
+  const struct CMUnitTest tests[] =
+  {
+    cmocka_unit_test_prestate(test_case_rtc, &rtc_state)
+  };
+
+  return cmocka_run_group_tests(tests, NULL, NULL);
+}