Marco Zecchini / Mbed OS Example_RTOS

Rtos API example

mbed-os/hal/us_ticker_api.h@0:9fca2b23d0ba, 2019-02-23 (annotated)

Committer:
marcozecchini
Date:
Sat Feb 23 12:13:36 2019 +0000
Revision:
0:9fca2b23d0ba
final commit

Who changed what in which revision?

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marcozecchini 0:9fca2b23d0ba 1
marcozecchini 0:9fca2b23d0ba 2 /** \addtogroup hal */
marcozecchini 0:9fca2b23d0ba 3 /** @{*/
marcozecchini 0:9fca2b23d0ba 4 /* mbed Microcontroller Library
marcozecchini 0:9fca2b23d0ba 5 * Copyright (c) 2006-2015 ARM Limited
marcozecchini 0:9fca2b23d0ba 6 *
marcozecchini 0:9fca2b23d0ba 7 * Licensed under the Apache License, Version 2.0 (the "License");
marcozecchini 0:9fca2b23d0ba 8 * you may not use this file except in compliance with the License.
marcozecchini 0:9fca2b23d0ba 9 * You may obtain a copy of the License at
marcozecchini 0:9fca2b23d0ba 10 *
marcozecchini 0:9fca2b23d0ba 11 * http://www.apache.org/licenses/LICENSE-2.0
marcozecchini 0:9fca2b23d0ba 12 *
marcozecchini 0:9fca2b23d0ba 13 * Unless required by applicable law or agreed to in writing, software
marcozecchini 0:9fca2b23d0ba 14 * distributed under the License is distributed on an "AS IS" BASIS,
marcozecchini 0:9fca2b23d0ba 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
marcozecchini 0:9fca2b23d0ba 16 * See the License for the specific language governing permissions and
marcozecchini 0:9fca2b23d0ba 17 * limitations under the License.
marcozecchini 0:9fca2b23d0ba 18 */
marcozecchini 0:9fca2b23d0ba 19 #ifndef MBED_US_TICKER_API_H
marcozecchini 0:9fca2b23d0ba 20 #define MBED_US_TICKER_API_H
marcozecchini 0:9fca2b23d0ba 21
marcozecchini 0:9fca2b23d0ba 22 #include <stdint.h>
marcozecchini 0:9fca2b23d0ba 23 #include "hal/ticker_api.h"
marcozecchini 0:9fca2b23d0ba 24
marcozecchini 0:9fca2b23d0ba 25 #ifdef __cplusplus
marcozecchini 0:9fca2b23d0ba 26 extern "C" {
marcozecchini 0:9fca2b23d0ba 27 #endif
marcozecchini 0:9fca2b23d0ba 28
marcozecchini 0:9fca2b23d0ba 29 /**
marcozecchini 0:9fca2b23d0ba 30 * \defgroup hal_UsTicker Microseconds Ticker Functions
marcozecchini 0:9fca2b23d0ba 31 * @{
marcozecchini 0:9fca2b23d0ba 32 */
marcozecchini 0:9fca2b23d0ba 33
marcozecchini 0:9fca2b23d0ba 34 typedef void (*ticker_irq_handler_type)(const ticker_data_t *const);
marcozecchini 0:9fca2b23d0ba 35
marcozecchini 0:9fca2b23d0ba 36 /** Set ticker IRQ handler
marcozecchini 0:9fca2b23d0ba 37 *
marcozecchini 0:9fca2b23d0ba 38 * @param ticker_irq_handler IRQ handler to be connected
marcozecchini 0:9fca2b23d0ba 39 *
marcozecchini 0:9fca2b23d0ba 40 * @return previous ticker IRQ handler
marcozecchini 0:9fca2b23d0ba 41 *
marcozecchini 0:9fca2b23d0ba 42 * @note by default IRQ handler is set to ticker_irq_handler()
marcozecchini 0:9fca2b23d0ba 43 * @note this function is primarily for testing purposes and it's not required part of HAL implementation
marcozecchini 0:9fca2b23d0ba 44 *
marcozecchini 0:9fca2b23d0ba 45 */
marcozecchini 0:9fca2b23d0ba 46 ticker_irq_handler_type set_us_ticker_irq_handler(ticker_irq_handler_type ticker_irq_handler);
marcozecchini 0:9fca2b23d0ba 47
marcozecchini 0:9fca2b23d0ba 48 /** Get ticker's data
marcozecchini 0:9fca2b23d0ba 49 *
marcozecchini 0:9fca2b23d0ba 50 * @return The low power ticker data
marcozecchini 0:9fca2b23d0ba 51 */
marcozecchini 0:9fca2b23d0ba 52 const ticker_data_t* get_us_ticker_data(void);
marcozecchini 0:9fca2b23d0ba 53
marcozecchini 0:9fca2b23d0ba 54
marcozecchini 0:9fca2b23d0ba 55 /** The wrapper for ticker_irq_handler, to pass us ticker's data
marcozecchini 0:9fca2b23d0ba 56 *
marcozecchini 0:9fca2b23d0ba 57 */
marcozecchini 0:9fca2b23d0ba 58 void us_ticker_irq_handler(void);
marcozecchini 0:9fca2b23d0ba 59
marcozecchini 0:9fca2b23d0ba 60 /* HAL us ticker */
marcozecchini 0:9fca2b23d0ba 61
marcozecchini 0:9fca2b23d0ba 62 /** Initialize the ticker
marcozecchini 0:9fca2b23d0ba 63 *
marcozecchini 0:9fca2b23d0ba 64 */
marcozecchini 0:9fca2b23d0ba 65 void us_ticker_init(void);
marcozecchini 0:9fca2b23d0ba 66
marcozecchini 0:9fca2b23d0ba 67 /** Read the current counter
marcozecchini 0:9fca2b23d0ba 68 *
marcozecchini 0:9fca2b23d0ba 69 * @return The current timer's counter value in microseconds
marcozecchini 0:9fca2b23d0ba 70 */
marcozecchini 0:9fca2b23d0ba 71 uint32_t us_ticker_read(void);
marcozecchini 0:9fca2b23d0ba 72
marcozecchini 0:9fca2b23d0ba 73 /** Set interrupt for specified timestamp
marcozecchini 0:9fca2b23d0ba 74 *
marcozecchini 0:9fca2b23d0ba 75 * @param timestamp The time in microseconds to be set
marcozecchini 0:9fca2b23d0ba 76 */
marcozecchini 0:9fca2b23d0ba 77 void us_ticker_set_interrupt(timestamp_t timestamp);
marcozecchini 0:9fca2b23d0ba 78
marcozecchini 0:9fca2b23d0ba 79 /** Disable us ticker interrupt
marcozecchini 0:9fca2b23d0ba 80 *
marcozecchini 0:9fca2b23d0ba 81 */
marcozecchini 0:9fca2b23d0ba 82 void us_ticker_disable_interrupt(void);
marcozecchini 0:9fca2b23d0ba 83
marcozecchini 0:9fca2b23d0ba 84 /** Clear us ticker interrupt
marcozecchini 0:9fca2b23d0ba 85 *
marcozecchini 0:9fca2b23d0ba 86 */
marcozecchini 0:9fca2b23d0ba 87 void us_ticker_clear_interrupt(void);
marcozecchini 0:9fca2b23d0ba 88
marcozecchini 0:9fca2b23d0ba 89 /** Set pending interrupt that should be fired right away.
marcozecchini 0:9fca2b23d0ba 90 *
marcozecchini 0:9fca2b23d0ba 91 * The ticker should be initialized prior calling this function.
marcozecchini 0:9fca2b23d0ba 92 */
marcozecchini 0:9fca2b23d0ba 93 void us_ticker_fire_interrupt(void);
marcozecchini 0:9fca2b23d0ba 94
marcozecchini 0:9fca2b23d0ba 95 /** Get frequency and counter bits of this ticker.
marcozecchini 0:9fca2b23d0ba 96 *
marcozecchini 0:9fca2b23d0ba 97 */
marcozecchini 0:9fca2b23d0ba 98 const ticker_info_t* us_ticker_get_info(void);
marcozecchini 0:9fca2b23d0ba 99
marcozecchini 0:9fca2b23d0ba 100 /**@}*/
marcozecchini 0:9fca2b23d0ba 101
marcozecchini 0:9fca2b23d0ba 102 #ifdef __cplusplus
marcozecchini 0:9fca2b23d0ba 103 }
marcozecchini 0:9fca2b23d0ba 104 #endif
marcozecchini 0:9fca2b23d0ba 105
marcozecchini 0:9fca2b23d0ba 106 #endif
marcozecchini 0:9fca2b23d0ba 107
marcozecchini 0:9fca2b23d0ba 108 /** @}*/