不韋 呂 / F746_SD_Player_Demo

Demo program for library named SD_PlayerSkeleton of SD card player skeleton. SD カードプレーヤのための骨組みとして使うためのライブラリ SD_PlayerSkeleton の使用例．このプログラムについては，CQ出版社インターフェース誌 2018年7月号で解説している．

Dependencies:   F746_GUI F746_SAI_IO SD_PlayerSkeleton

mbed_src_STM32F7/api/FunctionPointer.h@2:cf42e62a97dc, 2016-10-02 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Oct 02 03:29:34 2016 +0000
Revision:
2:cf42e62a97dc
3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 2:cf42e62a97dc 1 /* mbed Microcontroller Library
MikamiUitOpen 2:cf42e62a97dc 2 * Copyright (c) 2006-2015 ARM Limited
MikamiUitOpen 2:cf42e62a97dc 3 *
MikamiUitOpen 2:cf42e62a97dc 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 2:cf42e62a97dc 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 2:cf42e62a97dc 6 * You may obtain a copy of the License at
MikamiUitOpen 2:cf42e62a97dc 7 *
MikamiUitOpen 2:cf42e62a97dc 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 2:cf42e62a97dc 9 *
MikamiUitOpen 2:cf42e62a97dc 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 2:cf42e62a97dc 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 2:cf42e62a97dc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 2:cf42e62a97dc 13 * See the License for the specific language governing permissions and
MikamiUitOpen 2:cf42e62a97dc 14 * limitations under the License.
MikamiUitOpen 2:cf42e62a97dc 15 */
MikamiUitOpen 2:cf42e62a97dc 16 #ifndef MBED_FUNCTIONPOINTER_H
MikamiUitOpen 2:cf42e62a97dc 17 #define MBED_FUNCTIONPOINTER_H
MikamiUitOpen 2:cf42e62a97dc 18
MikamiUitOpen 2:cf42e62a97dc 19 #include <string.h>
MikamiUitOpen 2:cf42e62a97dc 20 #include <stdint.h>
MikamiUitOpen 2:cf42e62a97dc 21
MikamiUitOpen 2:cf42e62a97dc 22 namespace mbed {
MikamiUitOpen 2:cf42e62a97dc 23
MikamiUitOpen 2:cf42e62a97dc 24 /* If we had variaditic templates, this wouldn't be a problem, but until C++11 is enabled, we are stuck with multiple classes... */
MikamiUitOpen 2:cf42e62a97dc 25
MikamiUitOpen 2:cf42e62a97dc 26 /** A class for storing and calling a pointer to a static or member function
MikamiUitOpen 2:cf42e62a97dc 27 */
MikamiUitOpen 2:cf42e62a97dc 28 template <typename R, typename A1>
MikamiUitOpen 2:cf42e62a97dc 29 class FunctionPointerArg1{
MikamiUitOpen 2:cf42e62a97dc 30 public:
MikamiUitOpen 2:cf42e62a97dc 31 /** Create a FunctionPointer, attaching a static function
MikamiUitOpen 2:cf42e62a97dc 32 *
MikamiUitOpen 2:cf42e62a97dc 33 * @param function The static function to attach (default is none)
MikamiUitOpen 2:cf42e62a97dc 34 */
MikamiUitOpen 2:cf42e62a97dc 35 FunctionPointerArg1(R (*function)(A1) = 0) {
MikamiUitOpen 2:cf42e62a97dc 36 attach(function);
MikamiUitOpen 2:cf42e62a97dc 37 }
MikamiUitOpen 2:cf42e62a97dc 38
MikamiUitOpen 2:cf42e62a97dc 39 /** Create a FunctionPointer, attaching a member function
MikamiUitOpen 2:cf42e62a97dc 40 *
MikamiUitOpen 2:cf42e62a97dc 41 * @param object The object pointer to invoke the member function on (i.e. the this pointer)
MikamiUitOpen 2:cf42e62a97dc 42 * @param function The address of the member function to attach
MikamiUitOpen 2:cf42e62a97dc 43 */
MikamiUitOpen 2:cf42e62a97dc 44 template<typename T>
MikamiUitOpen 2:cf42e62a97dc 45 FunctionPointerArg1(T *object, R (T::*member)(A1)) {
MikamiUitOpen 2:cf42e62a97dc 46 attach(object, member);
MikamiUitOpen 2:cf42e62a97dc 47 }
MikamiUitOpen 2:cf42e62a97dc 48
MikamiUitOpen 2:cf42e62a97dc 49 /** Attach a static function
MikamiUitOpen 2:cf42e62a97dc 50 *
MikamiUitOpen 2:cf42e62a97dc 51 * @param function The static function to attach (default is none)
MikamiUitOpen 2:cf42e62a97dc 52 */
MikamiUitOpen 2:cf42e62a97dc 53 void attach(R (*function)(A1)) {
MikamiUitOpen 2:cf42e62a97dc 54 _p.function = function;
MikamiUitOpen 2:cf42e62a97dc 55 _membercaller = 0;
MikamiUitOpen 2:cf42e62a97dc 56 }
MikamiUitOpen 2:cf42e62a97dc 57
MikamiUitOpen 2:cf42e62a97dc 58 /** Attach a member function
MikamiUitOpen 2:cf42e62a97dc 59 *
MikamiUitOpen 2:cf42e62a97dc 60 * @param object The object pointer to invoke the member function on (i.e. the this pointer)
MikamiUitOpen 2:cf42e62a97dc 61 * @param function The address of the member function to attach
MikamiUitOpen 2:cf42e62a97dc 62 */
MikamiUitOpen 2:cf42e62a97dc 63 template<typename T>
MikamiUitOpen 2:cf42e62a97dc 64 void attach(T *object, R (T::*member)(A1)) {
MikamiUitOpen 2:cf42e62a97dc 65 _p.object = static_cast<void*>(object);
MikamiUitOpen 2:cf42e62a97dc 66 *reinterpret_cast<R (T::**)(A1)>(_member) = member;
MikamiUitOpen 2:cf42e62a97dc 67 _membercaller = &FunctionPointerArg1::membercaller<T>;
MikamiUitOpen 2:cf42e62a97dc 68 }
MikamiUitOpen 2:cf42e62a97dc 69
MikamiUitOpen 2:cf42e62a97dc 70 /** Call the attached static or member function
MikamiUitOpen 2:cf42e62a97dc 71 */
MikamiUitOpen 2:cf42e62a97dc 72 R call(A1 a) {
MikamiUitOpen 2:cf42e62a97dc 73 if (_membercaller == 0 && _p.function) {
MikamiUitOpen 2:cf42e62a97dc 74 return _p.function(a);
MikamiUitOpen 2:cf42e62a97dc 75 } else if (_membercaller && _p.object) {
MikamiUitOpen 2:cf42e62a97dc 76 return _membercaller(_p.object, _member, a);
MikamiUitOpen 2:cf42e62a97dc 77 }
MikamiUitOpen 2:cf42e62a97dc 78 return (R)0;
MikamiUitOpen 2:cf42e62a97dc 79 }
MikamiUitOpen 2:cf42e62a97dc 80
MikamiUitOpen 2:cf42e62a97dc 81 /** Get registered static function
MikamiUitOpen 2:cf42e62a97dc 82 */
MikamiUitOpen 2:cf42e62a97dc 83 R(*get_function(A1))() {
MikamiUitOpen 2:cf42e62a97dc 84 return _membercaller ? (R(*)(A1))0 : (R(*)(A1))_p.function;
MikamiUitOpen 2:cf42e62a97dc 85 }
MikamiUitOpen 2:cf42e62a97dc 86
MikamiUitOpen 2:cf42e62a97dc 87 #ifdef MBED_OPERATORS
MikamiUitOpen 2:cf42e62a97dc 88 R operator ()(A1 a) {
MikamiUitOpen 2:cf42e62a97dc 89 return call(a);
MikamiUitOpen 2:cf42e62a97dc 90 }
MikamiUitOpen 2:cf42e62a97dc 91 operator bool(void) const {
MikamiUitOpen 2:cf42e62a97dc 92 return (_membercaller != NULL ? _p.object : (void*)_p.function) != NULL;
MikamiUitOpen 2:cf42e62a97dc 93 }
MikamiUitOpen 2:cf42e62a97dc 94 #endif
MikamiUitOpen 2:cf42e62a97dc 95 private:
MikamiUitOpen 2:cf42e62a97dc 96 template<typename T>
MikamiUitOpen 2:cf42e62a97dc 97 static R membercaller(void *object, uintptr_t *member, A1 a) {
MikamiUitOpen 2:cf42e62a97dc 98 T* o = static_cast<T*>(object);
MikamiUitOpen 2:cf42e62a97dc 99 R (T::**m)(A1) = reinterpret_cast<R (T::**)(A1)>(member);
MikamiUitOpen 2:cf42e62a97dc 100 return (o->**m)(a);
MikamiUitOpen 2:cf42e62a97dc 101 }
MikamiUitOpen 2:cf42e62a97dc 102
MikamiUitOpen 2:cf42e62a97dc 103 union {
MikamiUitOpen 2:cf42e62a97dc 104 R (*function)(A1); // static function pointer
MikamiUitOpen 2:cf42e62a97dc 105 void *object; // object this pointer
MikamiUitOpen 2:cf42e62a97dc 106 } _p;
MikamiUitOpen 2:cf42e62a97dc 107 uintptr_t _member[4]; // aligned raw member function pointer storage - converted back by registered _membercaller
MikamiUitOpen 2:cf42e62a97dc 108 R (*_membercaller)(void*, uintptr_t*, A1); // registered membercaller function to convert back and call _m.member on _object
MikamiUitOpen 2:cf42e62a97dc 109 };
MikamiUitOpen 2:cf42e62a97dc 110
MikamiUitOpen 2:cf42e62a97dc 111 /** A class for storing and calling a pointer to a static or member function (R ()(void))
MikamiUitOpen 2:cf42e62a97dc 112 */
MikamiUitOpen 2:cf42e62a97dc 113 template <typename R>
MikamiUitOpen 2:cf42e62a97dc 114 class FunctionPointerArg1<R, void>{
MikamiUitOpen 2:cf42e62a97dc 115 public:
MikamiUitOpen 2:cf42e62a97dc 116 /** Create a FunctionPointer, attaching a static function
MikamiUitOpen 2:cf42e62a97dc 117 *
MikamiUitOpen 2:cf42e62a97dc 118 * @param function The static function to attach (default is none)
MikamiUitOpen 2:cf42e62a97dc 119 */
MikamiUitOpen 2:cf42e62a97dc 120 FunctionPointerArg1(R (*function)(void) = 0) {
MikamiUitOpen 2:cf42e62a97dc 121 attach(function);
MikamiUitOpen 2:cf42e62a97dc 122 }
MikamiUitOpen 2:cf42e62a97dc 123
MikamiUitOpen 2:cf42e62a97dc 124 /** Create a FunctionPointer, attaching a member function
MikamiUitOpen 2:cf42e62a97dc 125 *
MikamiUitOpen 2:cf42e62a97dc 126 * @param object The object pointer to invoke the member function on (i.e. the this pointer)
MikamiUitOpen 2:cf42e62a97dc 127 * @param function The address of the void member function to attach
MikamiUitOpen 2:cf42e62a97dc 128 */
MikamiUitOpen 2:cf42e62a97dc 129 template<typename T>
MikamiUitOpen 2:cf42e62a97dc 130 FunctionPointerArg1(T *object, R (T::*member)(void)) {
MikamiUitOpen 2:cf42e62a97dc 131 attach(object, member);
MikamiUitOpen 2:cf42e62a97dc 132 }
MikamiUitOpen 2:cf42e62a97dc 133
MikamiUitOpen 2:cf42e62a97dc 134 /** Attach a static function
MikamiUitOpen 2:cf42e62a97dc 135 *
MikamiUitOpen 2:cf42e62a97dc 136 * @param function The void static function to attach (default is none)
MikamiUitOpen 2:cf42e62a97dc 137 */
MikamiUitOpen 2:cf42e62a97dc 138 void attach(R (*function)(void)) {
MikamiUitOpen 2:cf42e62a97dc 139 _p.function = function;
MikamiUitOpen 2:cf42e62a97dc 140 _membercaller = 0;
MikamiUitOpen 2:cf42e62a97dc 141 }
MikamiUitOpen 2:cf42e62a97dc 142
MikamiUitOpen 2:cf42e62a97dc 143 /** Attach a member function
MikamiUitOpen 2:cf42e62a97dc 144 *
MikamiUitOpen 2:cf42e62a97dc 145 * @param object The object pointer to invoke the member function on (i.e. the this pointer)
MikamiUitOpen 2:cf42e62a97dc 146 * @param function The address of the void member function to attach
MikamiUitOpen 2:cf42e62a97dc 147 */
MikamiUitOpen 2:cf42e62a97dc 148 template<typename T>
MikamiUitOpen 2:cf42e62a97dc 149 void attach(T *object, R (T::*member)(void)) {
MikamiUitOpen 2:cf42e62a97dc 150 _p.object = static_cast<void*>(object);
MikamiUitOpen 2:cf42e62a97dc 151 *reinterpret_cast<R (T::**)(void)>(_member) = member;
MikamiUitOpen 2:cf42e62a97dc 152 _membercaller = &FunctionPointerArg1::membercaller<T>;
MikamiUitOpen 2:cf42e62a97dc 153 }
MikamiUitOpen 2:cf42e62a97dc 154
MikamiUitOpen 2:cf42e62a97dc 155 /** Call the attached static or member function
MikamiUitOpen 2:cf42e62a97dc 156 */
MikamiUitOpen 2:cf42e62a97dc 157 R call(){
MikamiUitOpen 2:cf42e62a97dc 158 if (_membercaller == 0 && _p.function) {
MikamiUitOpen 2:cf42e62a97dc 159 return _p.function();
MikamiUitOpen 2:cf42e62a97dc 160 } else if (_membercaller && _p.object) {
MikamiUitOpen 2:cf42e62a97dc 161 return _membercaller(_p.object, _member);
MikamiUitOpen 2:cf42e62a97dc 162 }
MikamiUitOpen 2:cf42e62a97dc 163 return (R)0;
MikamiUitOpen 2:cf42e62a97dc 164 }
MikamiUitOpen 2:cf42e62a97dc 165
MikamiUitOpen 2:cf42e62a97dc 166 /** Get registered static function
MikamiUitOpen 2:cf42e62a97dc 167 */
MikamiUitOpen 2:cf42e62a97dc 168 R(*get_function())() {
MikamiUitOpen 2:cf42e62a97dc 169 return _membercaller ? (R(*)())0 : (R(*)())_p.function;
MikamiUitOpen 2:cf42e62a97dc 170 }
MikamiUitOpen 2:cf42e62a97dc 171
MikamiUitOpen 2:cf42e62a97dc 172 #ifdef MBED_OPERATORS
MikamiUitOpen 2:cf42e62a97dc 173 R operator ()(void) {
MikamiUitOpen 2:cf42e62a97dc 174 return call();
MikamiUitOpen 2:cf42e62a97dc 175 }
MikamiUitOpen 2:cf42e62a97dc 176 operator bool(void) const {
MikamiUitOpen 2:cf42e62a97dc 177 return (_membercaller != NULL ? _p.object : (void*)_p.function) != NULL;
MikamiUitOpen 2:cf42e62a97dc 178 }
MikamiUitOpen 2:cf42e62a97dc 179 #endif
MikamiUitOpen 2:cf42e62a97dc 180
MikamiUitOpen 2:cf42e62a97dc 181 private:
MikamiUitOpen 2:cf42e62a97dc 182 template<typename T>
MikamiUitOpen 2:cf42e62a97dc 183 static R membercaller(void *object, uintptr_t *member) {
MikamiUitOpen 2:cf42e62a97dc 184 T* o = static_cast<T*>(object);
MikamiUitOpen 2:cf42e62a97dc 185 R (T::**m)(void) = reinterpret_cast<R (T::**)(void)>(member);
MikamiUitOpen 2:cf42e62a97dc 186 return (o->**m)();
MikamiUitOpen 2:cf42e62a97dc 187 }
MikamiUitOpen 2:cf42e62a97dc 188
MikamiUitOpen 2:cf42e62a97dc 189 union {
MikamiUitOpen 2:cf42e62a97dc 190 R (*function)(void); // static function pointer
MikamiUitOpen 2:cf42e62a97dc 191 void *object; // object this pointer
MikamiUitOpen 2:cf42e62a97dc 192 } _p;
MikamiUitOpen 2:cf42e62a97dc 193 uintptr_t _member[4]; // aligned raw member function pointer storage - converted back by registered _membercaller
MikamiUitOpen 2:cf42e62a97dc 194 R (*_membercaller)(void*, uintptr_t*); // registered membercaller function to convert back and call _m.member on _object
MikamiUitOpen 2:cf42e62a97dc 195 };
MikamiUitOpen 2:cf42e62a97dc 196
MikamiUitOpen 2:cf42e62a97dc 197 typedef FunctionPointerArg1<void, void> FunctionPointer;
MikamiUitOpen 2:cf42e62a97dc 198 typedef FunctionPointerArg1<void, int> event_callback_t;
MikamiUitOpen 2:cf42e62a97dc 199
MikamiUitOpen 2:cf42e62a97dc 200 } // namespace mbed
MikamiUitOpen 2:cf42e62a97dc 201
MikamiUitOpen 2:cf42e62a97dc 202 #endif