| /* |
| * 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. |
| */ |
| |
| #include <os/mynewt.h> |
| |
| #if MYNEWT_VAL(TIMEPERSIST_SYS_CONFIG) |
| |
| #include <hal/hal_system.h> |
| #include <config/config.h> |
| #include <datetime/datetime.h> |
| |
| static struct os_callout timepersist_timer; |
| |
| static int timepersist_conf_set(int argc, char **argv, char *val); |
| static struct conf_handler timepersist_conf = { |
| .ch_name = "time", |
| .ch_set = timepersist_conf_set, |
| }; |
| |
| /* |
| * Called when config is read in. This persists timezone info also. |
| */ |
| static int |
| timepersist_conf_set(int argc, char **argv, char *val) |
| { |
| struct os_timeval tv; |
| struct os_timezone tz; |
| |
| if (argc != 1) { |
| return OS_ENOENT; |
| } |
| if (!conf_set_from_storage()) { |
| /* |
| * Only allow sys/config to set time using this interface. |
| */ |
| return OS_ERR_PRIV; |
| } |
| if (!strcmp(argv[0], "s")) { |
| if (!val) { |
| memset(&tv, 0, sizeof(tv)); |
| memset(&tz, 0, sizeof(tz)); |
| os_settimeofday(&tv, &tz); |
| } else if (!datetime_parse(val, &tv, &tz)) { |
| if (hal_reset_cause() == HAL_RESET_POR) { |
| /* |
| * In this case the stored time could be off considerably. |
| * Schedule an immediate callout which will clear out the |
| * stored time. |
| */ |
| os_callout_reset(&timepersist_timer, 0); |
| } else { |
| os_settimeofday(&tv, &tz); |
| } |
| } |
| return OS_OK; |
| } |
| return OS_ENOENT; |
| } |
| |
| void |
| timepersist(void) |
| { |
| struct os_timeval tv; |
| struct os_timezone tz; |
| char str[DATETIME_BUFSIZE]; |
| |
| if (os_time_is_set()) { |
| os_gettimeofday(&tv, &tz); |
| if (!datetime_format(&tv, &tz, str, DATETIME_BUFSIZE)) { |
| conf_save_one("time/s", str); |
| } |
| } else if (hal_reset_cause() == HAL_RESET_POR) { |
| conf_save_one("time/s", NULL); |
| } |
| } |
| |
| static void |
| timepersist_tmo(struct os_event *ev) |
| { |
| timepersist(); |
| os_callout_reset(&timepersist_timer, |
| MYNEWT_VAL(TIMEPERSIST_FREQ) * OS_TICKS_PER_SEC); |
| } |
| |
| /* |
| * Periodically store system wallclock to non-volatile storage. |
| */ |
| void |
| timepersist_init(void) |
| { |
| conf_register(&timepersist_conf); |
| |
| os_callout_init(&timepersist_timer, os_eventq_dflt_get(), timepersist_tmo, |
| NULL); |
| os_callout_reset(&timepersist_timer, |
| MYNEWT_VAL(TIMEPERSIST_FREQ) * OS_TICKS_PER_SEC); |
| } |
| |
| #endif |