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/common/Stream.cpp@19:3c3833ec00d2, 2017-04-09 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Apr 09 12:44:17 2017 +0000
Revision:
19:3c3833ec00d2
Parent:
2:cf42e62a97dc 
20

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 2:cf42e62a97dc 1 /* mbed Microcontroller Library
MikamiUitOpen 2:cf42e62a97dc 2 * Copyright (c) 2006-2013 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 #include "Stream.h"
MikamiUitOpen 2:cf42e62a97dc 17
MikamiUitOpen 2:cf42e62a97dc 18 namespace mbed {
MikamiUitOpen 2:cf42e62a97dc 19
MikamiUitOpen 2:cf42e62a97dc 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
MikamiUitOpen 2:cf42e62a97dc 21 /* open ourselves */
MikamiUitOpen 2:cf42e62a97dc 22 char buf[12]; /* :0x12345678 + null byte */
MikamiUitOpen 2:cf42e62a97dc 23 std::sprintf(buf, ":%p", this);
MikamiUitOpen 2:cf42e62a97dc 24 _file = std::fopen(buf, "w+");
MikamiUitOpen 2:cf42e62a97dc 25 mbed_set_unbuffered_stream(_file);
MikamiUitOpen 2:cf42e62a97dc 26 }
MikamiUitOpen 2:cf42e62a97dc 27
MikamiUitOpen 2:cf42e62a97dc 28 Stream::~Stream() {
MikamiUitOpen 2:cf42e62a97dc 29 fclose(_file);
MikamiUitOpen 2:cf42e62a97dc 30 }
MikamiUitOpen 2:cf42e62a97dc 31
MikamiUitOpen 2:cf42e62a97dc 32 int Stream::putc(int c) {
MikamiUitOpen 2:cf42e62a97dc 33 fflush(_file);
MikamiUitOpen 2:cf42e62a97dc 34 return std::fputc(c, _file);
MikamiUitOpen 2:cf42e62a97dc 35 }
MikamiUitOpen 2:cf42e62a97dc 36 int Stream::puts(const char *s) {
MikamiUitOpen 2:cf42e62a97dc 37 fflush(_file);
MikamiUitOpen 2:cf42e62a97dc 38 return std::fputs(s, _file);
MikamiUitOpen 2:cf42e62a97dc 39 }
MikamiUitOpen 2:cf42e62a97dc 40 int Stream::getc() {
MikamiUitOpen 2:cf42e62a97dc 41 fflush(_file);
MikamiUitOpen 2:cf42e62a97dc 42 return mbed_getc(_file);
MikamiUitOpen 2:cf42e62a97dc 43 }
MikamiUitOpen 2:cf42e62a97dc 44 char* Stream::gets(char *s, int size) {
MikamiUitOpen 2:cf42e62a97dc 45 fflush(_file);
MikamiUitOpen 2:cf42e62a97dc 46 return mbed_gets(s,size,_file);
MikamiUitOpen 2:cf42e62a97dc 47 }
MikamiUitOpen 2:cf42e62a97dc 48
MikamiUitOpen 2:cf42e62a97dc 49 int Stream::close() {
MikamiUitOpen 2:cf42e62a97dc 50 return 0;
MikamiUitOpen 2:cf42e62a97dc 51 }
MikamiUitOpen 2:cf42e62a97dc 52
MikamiUitOpen 2:cf42e62a97dc 53 ssize_t Stream::write(const void* buffer, size_t length) {
MikamiUitOpen 2:cf42e62a97dc 54 const char* ptr = (const char*)buffer;
MikamiUitOpen 2:cf42e62a97dc 55 const char* end = ptr + length;
MikamiUitOpen 2:cf42e62a97dc 56 while (ptr != end) {
MikamiUitOpen 2:cf42e62a97dc 57 if (_putc(*ptr++) == EOF) {
MikamiUitOpen 2:cf42e62a97dc 58 break;
MikamiUitOpen 2:cf42e62a97dc 59 }
MikamiUitOpen 2:cf42e62a97dc 60 }
MikamiUitOpen 2:cf42e62a97dc 61 return ptr - (const char*)buffer;
MikamiUitOpen 2:cf42e62a97dc 62 }
MikamiUitOpen 2:cf42e62a97dc 63
MikamiUitOpen 2:cf42e62a97dc 64 ssize_t Stream::read(void* buffer, size_t length) {
MikamiUitOpen 2:cf42e62a97dc 65 char* ptr = (char*)buffer;
MikamiUitOpen 2:cf42e62a97dc 66 char* end = ptr + length;
MikamiUitOpen 2:cf42e62a97dc 67 while (ptr != end) {
MikamiUitOpen 2:cf42e62a97dc 68 int c = _getc();
MikamiUitOpen 2:cf42e62a97dc 69 if (c==EOF) break;
MikamiUitOpen 2:cf42e62a97dc 70 *ptr++ = c;
MikamiUitOpen 2:cf42e62a97dc 71 }
MikamiUitOpen 2:cf42e62a97dc 72 return ptr - (const char*)buffer;
MikamiUitOpen 2:cf42e62a97dc 73 }
MikamiUitOpen 2:cf42e62a97dc 74
MikamiUitOpen 2:cf42e62a97dc 75 off_t Stream::lseek(off_t offset, int whence) {
MikamiUitOpen 2:cf42e62a97dc 76 return 0;
MikamiUitOpen 2:cf42e62a97dc 77 }
MikamiUitOpen 2:cf42e62a97dc 78
MikamiUitOpen 2:cf42e62a97dc 79 int Stream::isatty() {
MikamiUitOpen 2:cf42e62a97dc 80 return 0;
MikamiUitOpen 2:cf42e62a97dc 81 }
MikamiUitOpen 2:cf42e62a97dc 82
MikamiUitOpen 2:cf42e62a97dc 83 int Stream::fsync() {
MikamiUitOpen 2:cf42e62a97dc 84 return 0;
MikamiUitOpen 2:cf42e62a97dc 85 }
MikamiUitOpen 2:cf42e62a97dc 86
MikamiUitOpen 2:cf42e62a97dc 87 off_t Stream::flen() {
MikamiUitOpen 2:cf42e62a97dc 88 return 0;
MikamiUitOpen 2:cf42e62a97dc 89 }
MikamiUitOpen 2:cf42e62a97dc 90
MikamiUitOpen 2:cf42e62a97dc 91 int Stream::printf(const char* format, ...) {
MikamiUitOpen 2:cf42e62a97dc 92 std::va_list arg;
MikamiUitOpen 2:cf42e62a97dc 93 va_start(arg, format);
MikamiUitOpen 2:cf42e62a97dc 94 fflush(_file);
MikamiUitOpen 2:cf42e62a97dc 95 int r = vfprintf(_file, format, arg);
MikamiUitOpen 2:cf42e62a97dc 96 va_end(arg);
MikamiUitOpen 2:cf42e62a97dc 97 return r;
MikamiUitOpen 2:cf42e62a97dc 98 }
MikamiUitOpen 2:cf42e62a97dc 99
MikamiUitOpen 2:cf42e62a97dc 100 int Stream::scanf(const char* format, ...) {
MikamiUitOpen 2:cf42e62a97dc 101 std::va_list arg;
MikamiUitOpen 2:cf42e62a97dc 102 va_start(arg, format);
MikamiUitOpen 2:cf42e62a97dc 103 fflush(_file);
MikamiUitOpen 2:cf42e62a97dc 104 int r = vfscanf(_file, format, arg);
MikamiUitOpen 2:cf42e62a97dc 105 va_end(arg);
MikamiUitOpen 2:cf42e62a97dc 106 return r;
MikamiUitOpen 2:cf42e62a97dc 107 }
MikamiUitOpen 2:cf42e62a97dc 108
MikamiUitOpen 2:cf42e62a97dc 109 int Stream::vprintf(const char* format, std::va_list args) {
MikamiUitOpen 2:cf42e62a97dc 110 fflush(_file);
MikamiUitOpen 2:cf42e62a97dc 111 int r = vfprintf(_file, format, args);
MikamiUitOpen 2:cf42e62a97dc 112 return r;
MikamiUitOpen 2:cf42e62a97dc 113 }
MikamiUitOpen 2:cf42e62a97dc 114
MikamiUitOpen 2:cf42e62a97dc 115 int Stream::vscanf(const char* format, std::va_list args) {
MikamiUitOpen 2:cf42e62a97dc 116 fflush(_file);
MikamiUitOpen 2:cf42e62a97dc 117 int r = vfscanf(_file, format, args);
MikamiUitOpen 2:cf42e62a97dc 118 return r;
MikamiUitOpen 2:cf42e62a97dc 119 }
MikamiUitOpen 2:cf42e62a97dc 120
MikamiUitOpen 2:cf42e62a97dc 121 } // namespace mbed