rau cha / mbed-src-I2CWaitFix

fix for mbed lib issue 3 (i2c problem) see also https://mbed.org/users/mbed_official/code/mbed/issues/3 affected implementations: LPC812, LPC11U24, LPC1768, LPC2368, LPC4088

Fork of mbed-src by mbed official

common/Stream.cpp@13:bd9ff402dd42, 2013-08-05 (annotated)

Committer:
Shikaneo
Date:
Mon Aug 05 02:27:27 2013 +0000
Revision:
13:bd9ff402dd42
Parent:
10:3bc89ef62ce7 
equipped timeout

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 10:3bc89ef62ce7 5 * you may not use this file except in compliance with the License.
emilmont 10:3bc89ef62ce7 6 * You may obtain a copy of the License at
emilmont 10:3bc89ef62ce7 7 *
emilmont 10:3bc89ef62ce7 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * Unless required by applicable law or agreed to in writing, software
emilmont 10:3bc89ef62ce7 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 10:3bc89ef62ce7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 10:3bc89ef62ce7 13 * See the License for the specific language governing permissions and
emilmont 10:3bc89ef62ce7 14 * limitations under the License.
emilmont 10:3bc89ef62ce7 15 */
emilmont 10:3bc89ef62ce7 16 #include "Stream.h"
emilmont 10:3bc89ef62ce7 17
emilmont 10:3bc89ef62ce7 18 #include <cstdarg>
emilmont 10:3bc89ef62ce7 19
emilmont 10:3bc89ef62ce7 20 namespace mbed {
emilmont 10:3bc89ef62ce7 21
emilmont 10:3bc89ef62ce7 22 Stream::Stream(const char *name) : FileLike(name) {
emilmont 10:3bc89ef62ce7 23 /* open ourselves */
emilmont 10:3bc89ef62ce7 24 char buf[12]; /* :0x12345678 + null byte */
emilmont 10:3bc89ef62ce7 25 std::sprintf(buf, ":%p", this);
emilmont 10:3bc89ef62ce7 26 _file = std::fopen(buf, "w+");
emilmont 10:3bc89ef62ce7 27 setbuf(_file, NULL);
emilmont 10:3bc89ef62ce7 28 }
emilmont 10:3bc89ef62ce7 29
emilmont 10:3bc89ef62ce7 30 Stream::~Stream() {
emilmont 10:3bc89ef62ce7 31 fclose(_file);
emilmont 10:3bc89ef62ce7 32 }
emilmont 10:3bc89ef62ce7 33
emilmont 10:3bc89ef62ce7 34 int Stream::putc(int c) {
emilmont 10:3bc89ef62ce7 35 fflush(_file);
emilmont 10:3bc89ef62ce7 36 return std::fputc(c, _file);
emilmont 10:3bc89ef62ce7 37 }
emilmont 10:3bc89ef62ce7 38 int Stream::puts(const char *s) {
emilmont 10:3bc89ef62ce7 39 fflush(_file);
emilmont 10:3bc89ef62ce7 40 return std::fputs(s, _file);
emilmont 10:3bc89ef62ce7 41 }
emilmont 10:3bc89ef62ce7 42 int Stream::getc() {
emilmont 10:3bc89ef62ce7 43 fflush(_file);
emilmont 10:3bc89ef62ce7 44 return std::fgetc(_file);
emilmont 10:3bc89ef62ce7 45 }
emilmont 10:3bc89ef62ce7 46 char* Stream::gets(char *s, int size) {
emilmont 10:3bc89ef62ce7 47 fflush(_file);
emilmont 10:3bc89ef62ce7 48 return std::fgets(s,size,_file);
emilmont 10:3bc89ef62ce7 49 }
emilmont 10:3bc89ef62ce7 50
emilmont 10:3bc89ef62ce7 51 int Stream::close() {
emilmont 10:3bc89ef62ce7 52 return 0;
emilmont 10:3bc89ef62ce7 53 }
emilmont 10:3bc89ef62ce7 54
emilmont 10:3bc89ef62ce7 55 ssize_t Stream::write(const void* buffer, size_t length) {
emilmont 10:3bc89ef62ce7 56 const char* ptr = (const char*)buffer;
emilmont 10:3bc89ef62ce7 57 const char* end = ptr + length;
emilmont 10:3bc89ef62ce7 58 while (ptr != end) {
emilmont 10:3bc89ef62ce7 59 if (_putc(*ptr++) == EOF) {
emilmont 10:3bc89ef62ce7 60 break;
emilmont 10:3bc89ef62ce7 61 }
emilmont 10:3bc89ef62ce7 62 }
emilmont 10:3bc89ef62ce7 63 return ptr - (const char*)buffer;
emilmont 10:3bc89ef62ce7 64 }
emilmont 10:3bc89ef62ce7 65
emilmont 10:3bc89ef62ce7 66 ssize_t Stream::read(void* buffer, size_t length) {
emilmont 10:3bc89ef62ce7 67 char* ptr = (char*)buffer;
emilmont 10:3bc89ef62ce7 68 char* end = ptr + length;
emilmont 10:3bc89ef62ce7 69 while (ptr != end) {
emilmont 10:3bc89ef62ce7 70 int c = _getc();
emilmont 10:3bc89ef62ce7 71 if (c==EOF) break;
emilmont 10:3bc89ef62ce7 72 *ptr++ = c;
emilmont 10:3bc89ef62ce7 73 }
emilmont 10:3bc89ef62ce7 74 return ptr - (const char*)buffer;
emilmont 10:3bc89ef62ce7 75 }
emilmont 10:3bc89ef62ce7 76
emilmont 10:3bc89ef62ce7 77 off_t Stream::lseek(off_t offset, int whence) {
emilmont 10:3bc89ef62ce7 78 return 0;
emilmont 10:3bc89ef62ce7 79 }
emilmont 10:3bc89ef62ce7 80
emilmont 10:3bc89ef62ce7 81 int Stream::isatty() {
emilmont 10:3bc89ef62ce7 82 return 0;
emilmont 10:3bc89ef62ce7 83 }
emilmont 10:3bc89ef62ce7 84
emilmont 10:3bc89ef62ce7 85 int Stream::fsync() {
emilmont 10:3bc89ef62ce7 86 return 0;
emilmont 10:3bc89ef62ce7 87 }
emilmont 10:3bc89ef62ce7 88
emilmont 10:3bc89ef62ce7 89 off_t Stream::flen() {
emilmont 10:3bc89ef62ce7 90 return 0;
emilmont 10:3bc89ef62ce7 91 }
emilmont 10:3bc89ef62ce7 92
emilmont 10:3bc89ef62ce7 93 int Stream::printf(const char* format, ...) {
emilmont 10:3bc89ef62ce7 94 std::va_list arg;
emilmont 10:3bc89ef62ce7 95 va_start(arg, format);
emilmont 10:3bc89ef62ce7 96 fflush(_file);
emilmont 10:3bc89ef62ce7 97 int r = vfprintf(_file, format, arg);
emilmont 10:3bc89ef62ce7 98 va_end(arg);
emilmont 10:3bc89ef62ce7 99 return r;
emilmont 10:3bc89ef62ce7 100 }
emilmont 10:3bc89ef62ce7 101
emilmont 10:3bc89ef62ce7 102 int Stream::scanf(const char* format, ...) {
emilmont 10:3bc89ef62ce7 103 std::va_list arg;
emilmont 10:3bc89ef62ce7 104 va_start(arg, format);
emilmont 10:3bc89ef62ce7 105 fflush(_file);
emilmont 10:3bc89ef62ce7 106 int r = vfscanf(_file, format, arg);
emilmont 10:3bc89ef62ce7 107 va_end(arg);
emilmont 10:3bc89ef62ce7 108 return r;
emilmont 10:3bc89ef62ce7 109 }
emilmont 10:3bc89ef62ce7 110
emilmont 10:3bc89ef62ce7 111 } // namespace mbed