Knight KE / Mbed OS Game_Master

游戏王对战板，目前code还是空的

mbed-os/drivers/Ticker.h@0:9b3d4731edbb, 2018-06-21 (annotated)

Committer:
WFKnight
Date:
Thu Jun 21 13:51:43 2018 +0000
Revision:
0:9b3d4731edbb
UART, RTOS, LED

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WFKnight 0:9b3d4731edbb 1 /* mbed Microcontroller Library
WFKnight 0:9b3d4731edbb 2 * Copyright (c) 2006-2013 ARM Limited
WFKnight 0:9b3d4731edbb 3 *
WFKnight 0:9b3d4731edbb 4 * Licensed under the Apache License, Version 2.0 (the "License");
WFKnight 0:9b3d4731edbb 5 * you may not use this file except in compliance with the License.
WFKnight 0:9b3d4731edbb 6 * You may obtain a copy of the License at
WFKnight 0:9b3d4731edbb 7 *
WFKnight 0:9b3d4731edbb 8 * http://www.apache.org/licenses/LICENSE-2.0
WFKnight 0:9b3d4731edbb 9 *
WFKnight 0:9b3d4731edbb 10 * Unless required by applicable law or agreed to in writing, software
WFKnight 0:9b3d4731edbb 11 * distributed under the License is distributed on an "AS IS" BASIS,
WFKnight 0:9b3d4731edbb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
WFKnight 0:9b3d4731edbb 13 * See the License for the specific language governing permissions and
WFKnight 0:9b3d4731edbb 14 * limitations under the License.
WFKnight 0:9b3d4731edbb 15 */
WFKnight 0:9b3d4731edbb 16 #ifndef MBED_TICKER_H
WFKnight 0:9b3d4731edbb 17 #define MBED_TICKER_H
WFKnight 0:9b3d4731edbb 18
WFKnight 0:9b3d4731edbb 19 #include "drivers/TimerEvent.h"
WFKnight 0:9b3d4731edbb 20 #include "platform/Callback.h"
WFKnight 0:9b3d4731edbb 21 #include "platform/mbed_toolchain.h"
WFKnight 0:9b3d4731edbb 22 #include "platform/NonCopyable.h"
WFKnight 0:9b3d4731edbb 23 #include "platform/mbed_power_mgmt.h"
WFKnight 0:9b3d4731edbb 24 #include "hal/lp_ticker_api.h"
WFKnight 0:9b3d4731edbb 25 #include "platform/mbed_critical.h"
WFKnight 0:9b3d4731edbb 26
WFKnight 0:9b3d4731edbb 27 namespace mbed {
WFKnight 0:9b3d4731edbb 28 /** \addtogroup drivers */
WFKnight 0:9b3d4731edbb 29
WFKnight 0:9b3d4731edbb 30 /** A Ticker is used to call a function at a recurring interval
WFKnight 0:9b3d4731edbb 31 *
WFKnight 0:9b3d4731edbb 32 * You can use as many separate Ticker objects as you require.
WFKnight 0:9b3d4731edbb 33 *
WFKnight 0:9b3d4731edbb 34 * @note Synchronization level: Interrupt safe
WFKnight 0:9b3d4731edbb 35 *
WFKnight 0:9b3d4731edbb 36 * Example:
WFKnight 0:9b3d4731edbb 37 * @code
WFKnight 0:9b3d4731edbb 38 * // Toggle the blinking led after 5 seconds
WFKnight 0:9b3d4731edbb 39 *
WFKnight 0:9b3d4731edbb 40 * #include "mbed.h"
WFKnight 0:9b3d4731edbb 41 *
WFKnight 0:9b3d4731edbb 42 * Ticker timer;
WFKnight 0:9b3d4731edbb 43 * DigitalOut led1(LED1);
WFKnight 0:9b3d4731edbb 44 * DigitalOut led2(LED2);
WFKnight 0:9b3d4731edbb 45 *
WFKnight 0:9b3d4731edbb 46 * int flip = 0;
WFKnight 0:9b3d4731edbb 47 *
WFKnight 0:9b3d4731edbb 48 * void attime() {
WFKnight 0:9b3d4731edbb 49 * flip = !flip;
WFKnight 0:9b3d4731edbb 50 * }
WFKnight 0:9b3d4731edbb 51 *
WFKnight 0:9b3d4731edbb 52 * int main() {
WFKnight 0:9b3d4731edbb 53 * timer.attach(&attime, 5);
WFKnight 0:9b3d4731edbb 54 * while(1) {
WFKnight 0:9b3d4731edbb 55 * if(flip == 0) {
WFKnight 0:9b3d4731edbb 56 * led1 = !led1;
WFKnight 0:9b3d4731edbb 57 * } else {
WFKnight 0:9b3d4731edbb 58 * led2 = !led2;
WFKnight 0:9b3d4731edbb 59 * }
WFKnight 0:9b3d4731edbb 60 * wait(0.2);
WFKnight 0:9b3d4731edbb 61 * }
WFKnight 0:9b3d4731edbb 62 * }
WFKnight 0:9b3d4731edbb 63 * @endcode
WFKnight 0:9b3d4731edbb 64 * @ingroup drivers
WFKnight 0:9b3d4731edbb 65 */
WFKnight 0:9b3d4731edbb 66 class Ticker : public TimerEvent, private NonCopyable<Ticker> {
WFKnight 0:9b3d4731edbb 67
WFKnight 0:9b3d4731edbb 68 public:
WFKnight 0:9b3d4731edbb 69 Ticker() : TimerEvent(), _function(0), _lock_deepsleep(true) {
WFKnight 0:9b3d4731edbb 70 }
WFKnight 0:9b3d4731edbb 71
WFKnight 0:9b3d4731edbb 72 // When low power ticker is in use, then do not disable deep-sleep.
WFKnight 0:9b3d4731edbb 73 Ticker(const ticker_data_t *data) : TimerEvent(data), _function(0), _lock_deepsleep(true) {
WFKnight 0:9b3d4731edbb 74 #if DEVICE_LPTICKER
WFKnight 0:9b3d4731edbb 75 _lock_deepsleep = (data != get_lp_ticker_data());
WFKnight 0:9b3d4731edbb 76 #endif
WFKnight 0:9b3d4731edbb 77 }
WFKnight 0:9b3d4731edbb 78
WFKnight 0:9b3d4731edbb 79 /** Attach a function to be called by the Ticker, specifying the interval in seconds
WFKnight 0:9b3d4731edbb 80 *
WFKnight 0:9b3d4731edbb 81 * @param func pointer to the function to be called
WFKnight 0:9b3d4731edbb 82 * @param t the time between calls in seconds
WFKnight 0:9b3d4731edbb 83 */
WFKnight 0:9b3d4731edbb 84 void attach(Callback<void()> func, float t) {
WFKnight 0:9b3d4731edbb 85 attach_us(func, t * 1000000.0f);
WFKnight 0:9b3d4731edbb 86 }
WFKnight 0:9b3d4731edbb 87
WFKnight 0:9b3d4731edbb 88 /** Attach a member function to be called by the Ticker, specifying the interval in seconds
WFKnight 0:9b3d4731edbb 89 *
WFKnight 0:9b3d4731edbb 90 * @param obj pointer to the object to call the member function on
WFKnight 0:9b3d4731edbb 91 * @param method pointer to the member function to be called
WFKnight 0:9b3d4731edbb 92 * @param t the time between calls in seconds
WFKnight 0:9b3d4731edbb 93 * @deprecated
WFKnight 0:9b3d4731edbb 94 * The attach function does not support cv-qualifiers. Replaced by
WFKnight 0:9b3d4731edbb 95 * attach(callback(obj, method), t).
WFKnight 0:9b3d4731edbb 96 */
WFKnight 0:9b3d4731edbb 97 template<typename T, typename M>
WFKnight 0:9b3d4731edbb 98 MBED_DEPRECATED_SINCE("mbed-os-5.1",
WFKnight 0:9b3d4731edbb 99 "The attach function does not support cv-qualifiers. Replaced by "
WFKnight 0:9b3d4731edbb 100 "attach(callback(obj, method), t).")
WFKnight 0:9b3d4731edbb 101 void attach(T *obj, M method, float t) {
WFKnight 0:9b3d4731edbb 102 attach(callback(obj, method), t);
WFKnight 0:9b3d4731edbb 103 }
WFKnight 0:9b3d4731edbb 104
WFKnight 0:9b3d4731edbb 105 /** Attach a function to be called by the Ticker, specifying the interval in micro-seconds
WFKnight 0:9b3d4731edbb 106 *
WFKnight 0:9b3d4731edbb 107 * @param func pointer to the function to be called
WFKnight 0:9b3d4731edbb 108 * @param t the time between calls in micro-seconds
WFKnight 0:9b3d4731edbb 109 *
WFKnight 0:9b3d4731edbb 110 * @note setting @a t to a value shorter that it takes to process the ticker callback
WFKnight 0:9b3d4731edbb 111 * will cause the system to hang. Ticker callback will be called constantly with no time
WFKnight 0:9b3d4731edbb 112 * for threads scheduling.
WFKnight 0:9b3d4731edbb 113 *
WFKnight 0:9b3d4731edbb 114 */
WFKnight 0:9b3d4731edbb 115 void attach_us(Callback<void()> func, us_timestamp_t t) {
WFKnight 0:9b3d4731edbb 116 core_util_critical_section_enter();
WFKnight 0:9b3d4731edbb 117 // lock only for the initial callback setup and this is not low power ticker
WFKnight 0:9b3d4731edbb 118 if(!_function && _lock_deepsleep) {
WFKnight 0:9b3d4731edbb 119 sleep_manager_lock_deep_sleep();
WFKnight 0:9b3d4731edbb 120 }
WFKnight 0:9b3d4731edbb 121 _function = func;
WFKnight 0:9b3d4731edbb 122 setup(t);
WFKnight 0:9b3d4731edbb 123 core_util_critical_section_exit();
WFKnight 0:9b3d4731edbb 124 }
WFKnight 0:9b3d4731edbb 125
WFKnight 0:9b3d4731edbb 126 /** Attach a member function to be called by the Ticker, specifying the interval in micro-seconds
WFKnight 0:9b3d4731edbb 127 *
WFKnight 0:9b3d4731edbb 128 * @param obj pointer to the object to call the member function on
WFKnight 0:9b3d4731edbb 129 * @param method pointer to the member function to be called
WFKnight 0:9b3d4731edbb 130 * @param t the time between calls in micro-seconds
WFKnight 0:9b3d4731edbb 131 * @deprecated
WFKnight 0:9b3d4731edbb 132 * The attach_us function does not support cv-qualifiers. Replaced by
WFKnight 0:9b3d4731edbb 133 * attach_us(callback(obj, method), t).
WFKnight 0:9b3d4731edbb 134 */
WFKnight 0:9b3d4731edbb 135 template<typename T, typename M>
WFKnight 0:9b3d4731edbb 136 MBED_DEPRECATED_SINCE("mbed-os-5.1",
WFKnight 0:9b3d4731edbb 137 "The attach_us function does not support cv-qualifiers. Replaced by "
WFKnight 0:9b3d4731edbb 138 "attach_us(callback(obj, method), t).")
WFKnight 0:9b3d4731edbb 139 void attach_us(T *obj, M method, us_timestamp_t t) {
WFKnight 0:9b3d4731edbb 140 attach_us(Callback<void()>(obj, method), t);
WFKnight 0:9b3d4731edbb 141 }
WFKnight 0:9b3d4731edbb 142
WFKnight 0:9b3d4731edbb 143 virtual ~Ticker() {
WFKnight 0:9b3d4731edbb 144 detach();
WFKnight 0:9b3d4731edbb 145 }
WFKnight 0:9b3d4731edbb 146
WFKnight 0:9b3d4731edbb 147 /** Detach the function
WFKnight 0:9b3d4731edbb 148 */
WFKnight 0:9b3d4731edbb 149 void detach();
WFKnight 0:9b3d4731edbb 150
WFKnight 0:9b3d4731edbb 151 protected:
WFKnight 0:9b3d4731edbb 152 void setup(us_timestamp_t t);
WFKnight 0:9b3d4731edbb 153 virtual void handler();
WFKnight 0:9b3d4731edbb 154
WFKnight 0:9b3d4731edbb 155 protected:
WFKnight 0:9b3d4731edbb 156 us_timestamp_t _delay; /**< Time delay (in microseconds) for re-setting the multi-shot callback. */
WFKnight 0:9b3d4731edbb 157 Callback<void()> _function; /**< Callback. */
WFKnight 0:9b3d4731edbb 158 bool _lock_deepsleep; /**< Flag which indicates if deep-sleep should be disabled. */
WFKnight 0:9b3d4731edbb 159 };
WFKnight 0:9b3d4731edbb 160
WFKnight 0:9b3d4731edbb 161 } // namespace mbed
WFKnight 0:9b3d4731edbb 162
WFKnight 0:9b3d4731edbb 163 #endif