esp-idf/components/openthread/port/esp_openthread_alarm.c
Guo Jia Cheng 7c38989309 OpenThread: add OpenThread and porting
* Adds the OpenThread submodule.
* Adds porting on ESP32.
* Adds the OpenThread cli example.
2021-04-02 14:49:49 +08:00

104 lines
2.7 KiB
C

// Copyright 2021 Espressif Systems (Shanghai) CO LTD
//
// Licensed 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 "esp_openthread_alarm.h"
#include <stdbool.h>
#include <stdint.h>
#include <sys/time.h>
#include "esp_log.h"
#include "esp_openthread_common_macro.h"
#include "esp_timer.h"
#include "common/logging.hpp"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "openthread/platform/alarm-milli.h"
#include "openthread/platform/diag.h"
#include "openthread/platform/time.h"
static uint64_t s_alarm_t0 = 0;
static uint64_t s_alarm_dt = 0;
static bool s_is_running = false;
uint64_t otPlatTimeGet(void)
{
struct timeval tv_now;
int err = gettimeofday(&tv_now, NULL);
assert(err == 0);
return (uint64_t)tv_now.tv_sec * US_PER_S + tv_now.tv_usec;
}
void otPlatAlarmMilliStartAt(otInstance *aInstance, uint32_t aT0, uint32_t aDt)
{
OT_UNUSED_VARIABLE(aInstance);
s_alarm_t0 = aT0;
s_alarm_dt = aDt;
s_is_running = true;
otLogDebgPlat("alarm start running, t0=%llu, dt=%llu", s_alarm_t0, s_alarm_dt);
}
void otPlatAlarmMilliStop(otInstance *aInstance)
{
OT_UNUSED_VARIABLE(aInstance);
s_is_running = false;
}
uint32_t otPlatAlarmMilliGetNow(void)
{
return esp_timer_get_time() / US_PER_MS;
}
void esp_openthread_alarm_update(esp_openthread_mainloop_context_t *mainloop)
{
struct timeval *timeout = &mainloop->timeout;
uint32_t now = otPlatAlarmMilliGetNow();
if (!s_is_running) {
timeout->tv_sec = INT32_MAX;
timeout->tv_usec = 0;
} else if (s_alarm_t0 + s_alarm_dt > now) {
uint64_t remaining = s_alarm_dt + s_alarm_t0 - now;
timeout->tv_sec = remaining / MS_PER_S;
timeout->tv_usec = (remaining % MS_PER_S) * US_PER_MS;
} else {
timeout->tv_sec = 0;
timeout->tv_usec = 0;
}
}
void esp_openthread_alarm_process(otInstance *aInstance)
{
if (s_is_running && s_alarm_t0 + s_alarm_dt <= otPlatAlarmMilliGetNow()) {
s_is_running = false;
#if OPENTHREAD_CONFIG_DIAG_ENABLE
if (otPlatDiagModeGet()) {
otPlatDiagAlarmFired(aInstance);
} else
#endif
{
otPlatAlarmMilliFired(aInstance);
}
otLogDebgPlat("alarm fired");
}
}