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//
// Copyright 2014 Ettus Research LLC
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#ifndef INCLUDED_CRON_H
#define INCLUDED_CRON_H
#include <stdint.h>
#include <stdbool.h>
#define CRON_MAX_JOBS 4
typedef enum {
SEC = 1, MILLISEC = 1000, MICROSEC = 1000000
} cron_time_unit_t;
typedef uint32_t (*cron_counter_fetcher_t)();
/*!
* \brief Initialize cron subsystem with a mechanism to fetch a counter and its frequency
*/
void cron_init(const cron_counter_fetcher_t fetch_counter, uint32_t counter_freq);
/*!
* \brief Get the hardware tick count
*/
uint32_t cron_get_ticks();
/*!
* \brief Get the time elapsed between start and stop in the specified units
*/
uint32_t get_elapsed_time(uint32_t start_ticks, uint32_t stop_ticks, cron_time_unit_t unit);
/*!
* \brief Sleep (spinloop) for about 'ticks' counter ticks
* Use only if simulating, _very_ short delay
*/
void sleep_ticks(uint32_t ticks);
/*!
* \brief Sleep (spinloop) for about 'duration' microseconds
* Use only if simulating, _very_ short delay
*/
void sleep_us(uint32_t duration);
/*!
* \brief Sleep (spinloop) for about 'duration' milliseconds
* Use only if simulating, _very_ short delay
*/
void sleep_ms(uint32_t duration);
/*!
* \brief Initialize a unique cron job with 'job_id' and interval 'interval_ms'
*/
void cron_job_init(uint32_t job_id, uint32_t interval_ms);
/*!
* \brief Check if cron job with 'job_id' is due for execution
*/
bool cron_job_run_due(uint32_t job_id);
#endif /* INCLUDED_CRON_H */
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