Василий Басалаев / mbed-I2CIO

Modification of mbed-src library only for STM32F030F4, very cheap microcontroller in 20-Pin TSSOP package, with 16Kbytes of Flash and 4Kbytes of Ram. **Target for online compilator must be Nucleo 32F030R8.** 01.02.2018 Acosinwork: Fork of mbed-STM32F030F4 library. Support for Troyka GPIO expander by Amperka. http://amperka.ru/product/troyka-gpio-expander

Fork of mbed-STM32F030F4 by Nothing Special

common/retarget.cpp@12:6f07dd7cbe47, 2018-02-01 (annotated)

Committer:
acosinwork
Date:
Thu Feb 01 10:37:10 2018 +0000
Revision:
12:6f07dd7cbe47
Parent:
6:3c60dac207ae 
Change pin mapping and set internall oscillator as default. Fork to support Troyka GPIO expander (I2C I/O); http://amperka.ru/product/troyka-gpio-expander

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 0:38ccae254a29 1 /* mbed Microcontroller Library
mega64 0:38ccae254a29 2 * Copyright (c) 2006-2013 ARM Limited
mega64 0:38ccae254a29 3 *
mega64 0:38ccae254a29 4 * Licensed under the Apache License, Version 2.0 (the "License");
mega64 0:38ccae254a29 5 * you may not use this file except in compliance with the License.
mega64 0:38ccae254a29 6 * You may obtain a copy of the License at
mega64 0:38ccae254a29 7 *
mega64 0:38ccae254a29 8 * http://www.apache.org/licenses/LICENSE-2.0
mega64 0:38ccae254a29 9 *
mega64 0:38ccae254a29 10 * Unless required by applicable law or agreed to in writing, software
mega64 0:38ccae254a29 11 * distributed under the License is distributed on an "AS IS" BASIS,
mega64 0:38ccae254a29 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mega64 0:38ccae254a29 13 * See the License for the specific language governing permissions and
mega64 0:38ccae254a29 14 * limitations under the License.
mega64 0:38ccae254a29 15 */
mega64 0:38ccae254a29 16 #include "platform.h"
mega64 0:38ccae254a29 17 #include "FileHandle.h"
mega64 0:38ccae254a29 18 #include "FileSystemLike.h"
mega64 0:38ccae254a29 19 #include "FilePath.h"
mega64 0:38ccae254a29 20 #include "serial_api.h"
mega64 0:38ccae254a29 21 #include "toolchain.h"
mega64 0:38ccae254a29 22 #include <errno.h>
mega64 0:38ccae254a29 23
mega64 0:38ccae254a29 24 #if defined(__ARMCC_VERSION)
mega64 0:38ccae254a29 25 # include <rt_sys.h>
mega64 0:38ccae254a29 26 # define PREFIX(x) _sys##x
mega64 0:38ccae254a29 27 # define OPEN_MAX _SYS_OPEN
mega64 0:38ccae254a29 28 # ifdef __MICROLIB
mega64 0:38ccae254a29 29 # pragma import(__use_full_stdio)
mega64 0:38ccae254a29 30 # endif
mega64 0:38ccae254a29 31
mega64 0:38ccae254a29 32 #elif defined(__ICCARM__)
mega64 0:38ccae254a29 33 # include <yfuns.h>
mega64 0:38ccae254a29 34 # define PREFIX(x) _##x
mega64 0:38ccae254a29 35 # define OPEN_MAX 16
mega64 0:38ccae254a29 36
mega64 0:38ccae254a29 37 # define STDIN_FILENO 0
mega64 0:38ccae254a29 38 # define STDOUT_FILENO 1
mega64 0:38ccae254a29 39 # define STDERR_FILENO 2
mega64 0:38ccae254a29 40
mega64 0:38ccae254a29 41 #else
mega64 0:38ccae254a29 42 # include <sys/stat.h>
mega64 0:38ccae254a29 43 # include <sys/unistd.h>
mega64 0:38ccae254a29 44 # include <sys/syslimits.h>
mega64 0:38ccae254a29 45 # define PREFIX(x) x
mega64 0:38ccae254a29 46 #endif
mega64 0:38ccae254a29 47
mega64 0:38ccae254a29 48 using namespace mbed;
mega64 0:38ccae254a29 49
mega64 0:38ccae254a29 50 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
mega64 0:38ccae254a29 51 // Before version 5.03, we were using a patched version of microlib with proper names
mega64 0:38ccae254a29 52 extern const char __stdin_name[] = ":tt";
mega64 0:38ccae254a29 53 extern const char __stdout_name[] = ":tt";
mega64 0:38ccae254a29 54 extern const char __stderr_name[] = ":tt";
mega64 0:38ccae254a29 55
mega64 0:38ccae254a29 56 #else
mega64 0:38ccae254a29 57 extern const char __stdin_name[] = "/stdin";
mega64 0:38ccae254a29 58 extern const char __stdout_name[] = "/stdout";
mega64 0:38ccae254a29 59 extern const char __stderr_name[] = "/stderr";
mega64 0:38ccae254a29 60 #endif
mega64 0:38ccae254a29 61
mega64 0:38ccae254a29 62 /* newlib has the filehandle field in the FILE struct as a short, so
mega64 0:38ccae254a29 63 * we can't just return a Filehandle* from _open and instead have to
mega64 0:38ccae254a29 64 * put it in a filehandles array and return the index into that array
mega64 0:38ccae254a29 65 * (or rather index+3, as filehandles 0-2 are stdin/out/err).
mega64 0:38ccae254a29 66 */
mega64 0:38ccae254a29 67 static FileHandle *filehandles[OPEN_MAX];
mega64 0:38ccae254a29 68
mega64 0:38ccae254a29 69 FileHandle::~FileHandle() {
mega64 0:38ccae254a29 70 /* Remove all open filehandles for this */
mega64 0:38ccae254a29 71 for (unsigned int fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
mega64 0:38ccae254a29 72 if (filehandles[fh_i] == this) {
mega64 0:38ccae254a29 73 filehandles[fh_i] = NULL;
mega64 0:38ccae254a29 74 }
mega64 0:38ccae254a29 75 }
mega64 0:38ccae254a29 76 }
mega64 0:38ccae254a29 77
mega64 0:38ccae254a29 78 #if DEVICE_SERIAL
mega64 0:38ccae254a29 79 extern int stdio_uart_inited;
mega64 0:38ccae254a29 80 extern serial_t stdio_uart;
mega64 0:38ccae254a29 81 #endif
mega64 0:38ccae254a29 82
mega64 0:38ccae254a29 83 static void init_serial() {
mega64 0:38ccae254a29 84 #if DEVICE_SERIAL
mega64 0:38ccae254a29 85 if (stdio_uart_inited) return;
mega64 0:38ccae254a29 86 serial_init(&stdio_uart, STDIO_UART_TX, STDIO_UART_RX);
mega64 0:38ccae254a29 87 #endif
mega64 0:38ccae254a29 88 }
mega64 0:38ccae254a29 89
mega64 0:38ccae254a29 90 static inline int openmode_to_posix(int openmode) {
mega64 0:38ccae254a29 91 int posix = openmode;
mega64 0:38ccae254a29 92 #ifdef __ARMCC_VERSION
mega64 0:38ccae254a29 93 if (openmode & OPEN_PLUS) {
mega64 0:38ccae254a29 94 posix = O_RDWR;
mega64 0:38ccae254a29 95 } else if(openmode & OPEN_W) {
mega64 0:38ccae254a29 96 posix = O_WRONLY;
mega64 0:38ccae254a29 97 } else if(openmode & OPEN_A) {
mega64 0:38ccae254a29 98 posix = O_WRONLY|O_APPEND;
mega64 0:38ccae254a29 99 } else {
mega64 0:38ccae254a29 100 posix = O_RDONLY;
mega64 0:38ccae254a29 101 }
mega64 0:38ccae254a29 102 /* a, w, a+, w+ all create if file does not already exist */
mega64 0:38ccae254a29 103 if (openmode & (OPEN_A|OPEN_W)) {
mega64 0:38ccae254a29 104 posix |= O_CREAT;
mega64 0:38ccae254a29 105 }
mega64 0:38ccae254a29 106 /* w and w+ truncate */
mega64 0:38ccae254a29 107 if (openmode & OPEN_W) {
mega64 0:38ccae254a29 108 posix |= O_TRUNC;
mega64 0:38ccae254a29 109 }
mega64 0:38ccae254a29 110 #elif defined(__ICCARM__)
mega64 0:38ccae254a29 111 switch (openmode & _LLIO_RDWRMASK) {
mega64 0:38ccae254a29 112 case _LLIO_RDONLY: posix = O_RDONLY; break;
mega64 0:38ccae254a29 113 case _LLIO_WRONLY: posix = O_WRONLY; break;
mega64 0:38ccae254a29 114 case _LLIO_RDWR : posix = O_RDWR ; break;
mega64 0:38ccae254a29 115 }
mega64 0:38ccae254a29 116 if (openmode & _LLIO_CREAT ) posix |= O_CREAT;
mega64 0:38ccae254a29 117 if (openmode & _LLIO_APPEND) posix |= O_APPEND;
mega64 0:38ccae254a29 118 if (openmode & _LLIO_TRUNC ) posix |= O_TRUNC;
mega64 0:38ccae254a29 119 #endif
mega64 0:38ccae254a29 120 return posix;
mega64 0:38ccae254a29 121 }
mega64 0:38ccae254a29 122
mega64 0:38ccae254a29 123 extern "C" FILEHANDLE PREFIX(_open)(const char* name, int openmode) {
mega64 0:38ccae254a29 124 #if defined(__MICROLIB) && (__ARMCC_VERSION>5030000)
mega64 0:38ccae254a29 125 // Before version 5.03, we were using a patched version of microlib with proper names
mega64 0:38ccae254a29 126 // This is the workaround that the microlib author suggested us
mega64 0:38ccae254a29 127 static int n = 0;
mega64 0:38ccae254a29 128 if (!std::strcmp(name, ":tt")) return n++;
mega64 0:38ccae254a29 129
mega64 0:38ccae254a29 130 #else
mega64 0:38ccae254a29 131 /* Use the posix convention that stdin,out,err are filehandles 0,1,2.
mega64 0:38ccae254a29 132 */
mega64 0:38ccae254a29 133 if (std::strcmp(name, __stdin_name) == 0) {
mega64 0:38ccae254a29 134 init_serial();
mega64 0:38ccae254a29 135 return 0;
mega64 0:38ccae254a29 136 } else if (std::strcmp(name, __stdout_name) == 0) {
mega64 0:38ccae254a29 137 init_serial();
mega64 0:38ccae254a29 138 return 1;
mega64 0:38ccae254a29 139 } else if (std::strcmp(name, __stderr_name) == 0) {
mega64 0:38ccae254a29 140 init_serial();
mega64 0:38ccae254a29 141 return 2;
mega64 0:38ccae254a29 142 }
mega64 0:38ccae254a29 143 #endif
mega64 0:38ccae254a29 144
mega64 0:38ccae254a29 145 // find the first empty slot in filehandles
mega64 0:38ccae254a29 146 unsigned int fh_i;
mega64 0:38ccae254a29 147 for (fh_i = 0; fh_i < sizeof(filehandles)/sizeof(*filehandles); fh_i++) {
mega64 0:38ccae254a29 148 if (filehandles[fh_i] == NULL) break;
mega64 0:38ccae254a29 149 }
mega64 0:38ccae254a29 150 if (fh_i >= sizeof(filehandles)/sizeof(*filehandles)) {
mega64 0:38ccae254a29 151 return -1;
mega64 0:38ccae254a29 152 }
mega64 0:38ccae254a29 153
mega64 0:38ccae254a29 154 FileHandle *res;
mega64 0:38ccae254a29 155
mega64 0:38ccae254a29 156 /* FILENAME: ":0x12345678" describes a FileLike* */
mega64 0:38ccae254a29 157 if (name[0] == ':') {
mega64 0:38ccae254a29 158 void *p;
mega64 0:38ccae254a29 159 sscanf(name, ":%p", &p);
mega64 0:38ccae254a29 160 res = (FileHandle*)p;
mega64 0:38ccae254a29 161
mega64 0:38ccae254a29 162 /* FILENAME: "/file_system/file_name" */
mega64 0:38ccae254a29 163 } else {
mega64 0:38ccae254a29 164 FilePath path(name);
mega64 0:38ccae254a29 165
mega64 0:38ccae254a29 166 if (!path.exists())
mega64 0:38ccae254a29 167 return -1;
mega64 0:38ccae254a29 168 else if (path.isFile()) {
mega64 0:38ccae254a29 169 res = path.file();
mega64 0:38ccae254a29 170 } else {
mega64 0:38ccae254a29 171 FileSystemLike *fs = path.fileSystem();
mega64 0:38ccae254a29 172 if (fs == NULL) return -1;
mega64 0:38ccae254a29 173 int posix_mode = openmode_to_posix(openmode);
mega64 0:38ccae254a29 174 res = fs->open(path.fileName(), posix_mode); /* NULL if fails */
mega64 0:38ccae254a29 175 }
mega64 0:38ccae254a29 176 }
mega64 0:38ccae254a29 177
mega64 0:38ccae254a29 178 if (res == NULL) return -1;
mega64 0:38ccae254a29 179 filehandles[fh_i] = res;
mega64 0:38ccae254a29 180
mega64 0:38ccae254a29 181 return fh_i + 3; // +3 as filehandles 0-2 are stdin/out/err
mega64 0:38ccae254a29 182 }
mega64 0:38ccae254a29 183
mega64 0:38ccae254a29 184 extern "C" int PREFIX(_close)(FILEHANDLE fh) {
mega64 0:38ccae254a29 185 if (fh < 3) return 0;
mega64 0:38ccae254a29 186
mega64 0:38ccae254a29 187 FileHandle* fhc = filehandles[fh-3];
mega64 0:38ccae254a29 188 filehandles[fh-3] = NULL;
mega64 0:38ccae254a29 189 if (fhc == NULL) return -1;
mega64 0:38ccae254a29 190
mega64 0:38ccae254a29 191 return fhc->close();
mega64 0:38ccae254a29 192 }
mega64 0:38ccae254a29 193
mega64 0:38ccae254a29 194 #if defined(__ICCARM__)
mega64 0:38ccae254a29 195 extern "C" size_t __write (int fh, const unsigned char *buffer, size_t length) {
mega64 0:38ccae254a29 196 #else
mega64 0:38ccae254a29 197 extern "C" int PREFIX(_write)(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode) {
mega64 0:38ccae254a29 198 #endif
mega64 0:38ccae254a29 199 int n; // n is the number of bytes written
mega64 0:38ccae254a29 200 if (fh < 3) {
mega64 0:38ccae254a29 201 #if DEVICE_SERIAL
mega64 0:38ccae254a29 202 if (!stdio_uart_inited) init_serial();
mega64 0:38ccae254a29 203 for (unsigned int i = 0; i < length; i++) {
mega64 0:38ccae254a29 204 serial_putc(&stdio_uart, buffer[i]);
mega64 0:38ccae254a29 205 }
mega64 0:38ccae254a29 206 #endif
mega64 0:38ccae254a29 207 n = length;
mega64 0:38ccae254a29 208 } else {
mega64 0:38ccae254a29 209 FileHandle* fhc = filehandles[fh-3];
mega64 0:38ccae254a29 210 if (fhc == NULL) return -1;
mega64 0:38ccae254a29 211
mega64 0:38ccae254a29 212 n = fhc->write(buffer, length);
mega64 0:38ccae254a29 213 }
mega64 0:38ccae254a29 214 #ifdef __ARMCC_VERSION
mega64 0:38ccae254a29 215 return length-n;
mega64 0:38ccae254a29 216 #else
mega64 0:38ccae254a29 217 return n;
mega64 0:38ccae254a29 218 #endif
mega64 0:38ccae254a29 219 }
mega64 0:38ccae254a29 220
mega64 0:38ccae254a29 221 #if defined(__ICCARM__)
mega64 0:38ccae254a29 222 extern "C" size_t __read (int fh, unsigned char *buffer, size_t length) {
mega64 0:38ccae254a29 223 #else
mega64 0:38ccae254a29 224 extern "C" int PREFIX(_read)(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode) {
mega64 0:38ccae254a29 225 #endif
mega64 0:38ccae254a29 226 int n; // n is the number of bytes read
mega64 0:38ccae254a29 227 if (fh < 3) {
mega64 0:38ccae254a29 228 // only read a character at a time from stdin
mega64 0:38ccae254a29 229 #if DEVICE_SERIAL
mega64 0:38ccae254a29 230 if (!stdio_uart_inited) init_serial();
mega64 0:38ccae254a29 231 *buffer = serial_getc(&stdio_uart);
mega64 0:38ccae254a29 232 #endif
mega64 0:38ccae254a29 233 n = 1;
mega64 0:38ccae254a29 234 } else {
mega64 0:38ccae254a29 235 FileHandle* fhc = filehandles[fh-3];
mega64 0:38ccae254a29 236 if (fhc == NULL) return -1;
mega64 0:38ccae254a29 237
mega64 0:38ccae254a29 238 n = fhc->read(buffer, length);
mega64 0:38ccae254a29 239 }
mega64 0:38ccae254a29 240 #ifdef __ARMCC_VERSION
mega64 0:38ccae254a29 241 return length-n;
mega64 0:38ccae254a29 242 #else
mega64 0:38ccae254a29 243 return n;
mega64 0:38ccae254a29 244 #endif
mega64 0:38ccae254a29 245 }
mega64 0:38ccae254a29 246
mega64 0:38ccae254a29 247 #ifdef __ARMCC_VERSION
mega64 0:38ccae254a29 248 extern "C" int PREFIX(_istty)(FILEHANDLE fh)
mega64 0:38ccae254a29 249 #else
mega64 0:38ccae254a29 250 extern "C" int _isatty(FILEHANDLE fh)
mega64 0:38ccae254a29 251 #endif
mega64 0:38ccae254a29 252 {
mega64 0:38ccae254a29 253 /* stdin, stdout and stderr should be tty */
mega64 0:38ccae254a29 254 if (fh < 3) return 1;
mega64 0:38ccae254a29 255
mega64 0:38ccae254a29 256 FileHandle* fhc = filehandles[fh-3];
mega64 0:38ccae254a29 257 if (fhc == NULL) return -1;
mega64 0:38ccae254a29 258
mega64 0:38ccae254a29 259 return fhc->isatty();
mega64 0:38ccae254a29 260 }
mega64 0:38ccae254a29 261
mega64 0:38ccae254a29 262 extern "C"
mega64 0:38ccae254a29 263 #if defined(__ARMCC_VERSION)
mega64 0:38ccae254a29 264 int _sys_seek(FILEHANDLE fh, long position)
mega64 0:38ccae254a29 265 #elif defined(__ICCARM__)
mega64 0:38ccae254a29 266 long __lseek(int fh, long offset, int whence)
mega64 0:38ccae254a29 267 #else
mega64 0:38ccae254a29 268 int _lseek(FILEHANDLE fh, int offset, int whence)
mega64 0:38ccae254a29 269 #endif
mega64 0:38ccae254a29 270 {
mega64 0:38ccae254a29 271 if (fh < 3) return 0;
mega64 0:38ccae254a29 272
mega64 0:38ccae254a29 273 FileHandle* fhc = filehandles[fh-3];
mega64 0:38ccae254a29 274 if (fhc == NULL) return -1;
mega64 0:38ccae254a29 275
mega64 0:38ccae254a29 276 #if defined(__ARMCC_VERSION)
mega64 0:38ccae254a29 277 return fhc->lseek(position, SEEK_SET);
mega64 0:38ccae254a29 278 #else
mega64 0:38ccae254a29 279 return fhc->lseek(offset, whence);
mega64 0:38ccae254a29 280 #endif
mega64 0:38ccae254a29 281 }
mega64 0:38ccae254a29 282
mega64 0:38ccae254a29 283 #ifdef __ARMCC_VERSION
mega64 0:38ccae254a29 284 extern "C" int PREFIX(_ensure)(FILEHANDLE fh) {
mega64 0:38ccae254a29 285 if (fh < 3) return 0;
mega64 0:38ccae254a29 286
mega64 0:38ccae254a29 287 FileHandle* fhc = filehandles[fh-3];
mega64 0:38ccae254a29 288 if (fhc == NULL) return -1;
mega64 0:38ccae254a29 289
mega64 0:38ccae254a29 290 return fhc->fsync();
mega64 0:38ccae254a29 291 }
mega64 0:38ccae254a29 292
mega64 0:38ccae254a29 293 extern "C" long PREFIX(_flen)(FILEHANDLE fh) {
mega64 0:38ccae254a29 294 if (fh < 3) return 0;
mega64 0:38ccae254a29 295
mega64 0:38ccae254a29 296 FileHandle* fhc = filehandles[fh-3];
mega64 0:38ccae254a29 297 if (fhc == NULL) return -1;
mega64 0:38ccae254a29 298
mega64 0:38ccae254a29 299 return fhc->flen();
mega64 0:38ccae254a29 300 }
mega64 0:38ccae254a29 301 #endif
mega64 0:38ccae254a29 302
mega64 0:38ccae254a29 303
mega64 0:38ccae254a29 304 #if !defined(__ARMCC_VERSION) && !defined(__ICCARM__)
mega64 0:38ccae254a29 305 extern "C" int _fstat(int fd, struct stat *st) {
mega64 0:38ccae254a29 306 if ((STDOUT_FILENO == fd) || (STDERR_FILENO == fd) || (STDIN_FILENO == fd)) {
mega64 0:38ccae254a29 307 st->st_mode = S_IFCHR;
mega64 0:38ccae254a29 308 return 0;
mega64 0:38ccae254a29 309 }
mega64 0:38ccae254a29 310
mega64 0:38ccae254a29 311 errno = EBADF;
mega64 0:38ccae254a29 312 return -1;
mega64 0:38ccae254a29 313 }
mega64 0:38ccae254a29 314 #endif
mega64 0:38ccae254a29 315
mega64 0:38ccae254a29 316 namespace std {
mega64 0:38ccae254a29 317 extern "C" int remove(const char *path) {
mega64 0:38ccae254a29 318 FilePath fp(path);
mega64 0:38ccae254a29 319 FileSystemLike *fs = fp.fileSystem();
mega64 0:38ccae254a29 320 if (fs == NULL) return -1;
mega64 0:38ccae254a29 321
mega64 0:38ccae254a29 322 return fs->remove(fp.fileName());
mega64 0:38ccae254a29 323 }
mega64 0:38ccae254a29 324
mega64 0:38ccae254a29 325 extern "C" int rename(const char *oldname, const char *newname) {
mega64 0:38ccae254a29 326 FilePath fpOld(oldname);
mega64 0:38ccae254a29 327 FilePath fpNew(newname);
mega64 0:38ccae254a29 328 FileSystemLike *fsOld = fpOld.fileSystem();
mega64 0:38ccae254a29 329 FileSystemLike *fsNew = fpNew.fileSystem();
mega64 0:38ccae254a29 330
mega64 0:38ccae254a29 331 /* rename only if both files are on the same FS */
mega64 0:38ccae254a29 332 if (fsOld != fsNew || fsOld == NULL) return -1;
mega64 0:38ccae254a29 333
mega64 0:38ccae254a29 334 return fsOld->rename(fpOld.fileName(), fpNew.fileName());
mega64 0:38ccae254a29 335 }
mega64 0:38ccae254a29 336
mega64 0:38ccae254a29 337 extern "C" char *tmpnam(char *s) {
mega64 0:38ccae254a29 338 return NULL;
mega64 0:38ccae254a29 339 }
mega64 0:38ccae254a29 340
mega64 0:38ccae254a29 341 extern "C" FILE *tmpfile() {
mega64 0:38ccae254a29 342 return NULL;
mega64 0:38ccae254a29 343 }
mega64 0:38ccae254a29 344 } // namespace std
mega64 0:38ccae254a29 345
mega64 0:38ccae254a29 346 #ifdef __ARMCC_VERSION
mega64 0:38ccae254a29 347 extern "C" char *_sys_command_string(char *cmd, int len) {
mega64 0:38ccae254a29 348 return NULL;
mega64 0:38ccae254a29 349 }
mega64 0:38ccae254a29 350 #endif
mega64 0:38ccae254a29 351
mega64 0:38ccae254a29 352 extern "C" DIR *opendir(const char *path) {
mega64 0:38ccae254a29 353 /* root dir is FileSystemLike */
mega64 0:38ccae254a29 354 if (path[0] == '/' && path[1] == 0) {
mega64 0:38ccae254a29 355 return FileSystemLike::opendir();
mega64 0:38ccae254a29 356 }
mega64 0:38ccae254a29 357
mega64 0:38ccae254a29 358 FilePath fp(path);
mega64 0:38ccae254a29 359 FileSystemLike* fs = fp.fileSystem();
mega64 0:38ccae254a29 360 if (fs == NULL) return NULL;
mega64 0:38ccae254a29 361
mega64 0:38ccae254a29 362 return fs->opendir(fp.fileName());
mega64 0:38ccae254a29 363 }
mega64 0:38ccae254a29 364
mega64 0:38ccae254a29 365 extern "C" struct dirent *readdir(DIR *dir) {
mega64 0:38ccae254a29 366 return dir->readdir();
mega64 0:38ccae254a29 367 }
mega64 0:38ccae254a29 368
mega64 0:38ccae254a29 369 extern "C" int closedir(DIR *dir) {
mega64 0:38ccae254a29 370 return dir->closedir();
mega64 0:38ccae254a29 371 }
mega64 0:38ccae254a29 372
mega64 0:38ccae254a29 373 extern "C" void rewinddir(DIR *dir) {
mega64 0:38ccae254a29 374 dir->rewinddir();
mega64 0:38ccae254a29 375 }
mega64 0:38ccae254a29 376
mega64 0:38ccae254a29 377 extern "C" off_t telldir(DIR *dir) {
mega64 0:38ccae254a29 378 return dir->telldir();
mega64 0:38ccae254a29 379 }
mega64 0:38ccae254a29 380
mega64 0:38ccae254a29 381 extern "C" void seekdir(DIR *dir, off_t off) {
mega64 0:38ccae254a29 382 dir->seekdir(off);
mega64 0:38ccae254a29 383 }
mega64 0:38ccae254a29 384
mega64 0:38ccae254a29 385 extern "C" int mkdir(const char *path, mode_t mode) {
mega64 0:38ccae254a29 386 FilePath fp(path);
mega64 0:38ccae254a29 387 FileSystemLike *fs = fp.fileSystem();
mega64 0:38ccae254a29 388 if (fs == NULL) return -1;
mega64 0:38ccae254a29 389
mega64 0:38ccae254a29 390 return fs->mkdir(fp.fileName(), mode);
mega64 0:38ccae254a29 391 }
mega64 0:38ccae254a29 392
mega64 0:38ccae254a29 393 #if defined(TOOLCHAIN_GCC)
mega64 0:38ccae254a29 394 /* prevents the exception handling name demangling code getting pulled in */
mega64 0:38ccae254a29 395 #include "mbed_error.h"
mega64 0:38ccae254a29 396 namespace __gnu_cxx {
mega64 0:38ccae254a29 397 void __verbose_terminate_handler() {
mega64 6:3c60dac207ae 398 // error("Exception");
mega64 6:3c60dac207ae 399 // STM32F030F4 for flash size save
mega64 6:3c60dac207ae 400 error("Ex");
mega64 0:38ccae254a29 401 }
mega64 0:38ccae254a29 402 }
mega64 0:38ccae254a29 403 extern "C" WEAK void __cxa_pure_virtual(void);
mega64 0:38ccae254a29 404 extern "C" WEAK void __cxa_pure_virtual(void) {
mega64 0:38ccae254a29 405 exit(1);
mega64 0:38ccae254a29 406 }
mega64 0:38ccae254a29 407
mega64 0:38ccae254a29 408 #endif
mega64 0:38ccae254a29 409
mega64 0:38ccae254a29 410 // ****************************************************************************
mega64 0:38ccae254a29 411 // mbed_main is a function that is called before main()
mega64 0:38ccae254a29 412 // mbed_sdk_init() is also a function that is called before main(), but unlike
mega64 0:38ccae254a29 413 // mbed_main(), it is not meant for user code, but for the SDK itself to perform
mega64 0:38ccae254a29 414 // initializations before main() is called.
mega64 0:38ccae254a29 415
mega64 0:38ccae254a29 416 extern "C" WEAK void mbed_main(void);
mega64 0:38ccae254a29 417 extern "C" WEAK void mbed_main(void) {
mega64 0:38ccae254a29 418 }
mega64 0:38ccae254a29 419
mega64 0:38ccae254a29 420 extern "C" WEAK void mbed_sdk_init(void);
mega64 0:38ccae254a29 421 extern "C" WEAK void mbed_sdk_init(void) {
mega64 0:38ccae254a29 422 }
mega64 0:38ccae254a29 423
mega64 0:38ccae254a29 424 #if defined(TOOLCHAIN_ARM)
mega64 0:38ccae254a29 425 extern "C" int $Super$$main(void);
mega64 0:38ccae254a29 426
mega64 0:38ccae254a29 427 extern "C" int $Sub$$main(void) {
mega64 0:38ccae254a29 428 mbed_sdk_init();
mega64 0:38ccae254a29 429 mbed_main();
mega64 0:38ccae254a29 430 return $Super$$main();
mega64 0:38ccae254a29 431 }
mega64 0:38ccae254a29 432 #elif defined(TOOLCHAIN_GCC)
mega64 0:38ccae254a29 433 extern "C" int __real_main(void);
mega64 0:38ccae254a29 434
mega64 0:38ccae254a29 435 extern "C" int __wrap_main(void) {
mega64 0:38ccae254a29 436 mbed_sdk_init();
mega64 0:38ccae254a29 437 mbed_main();
mega64 0:38ccae254a29 438 return __real_main();
mega64 0:38ccae254a29 439 }
mega64 0:38ccae254a29 440 #elif defined(TOOLCHAIN_IAR)
mega64 0:38ccae254a29 441 // IAR doesn't have the $Super/$Sub mechanism of armcc, nor something equivalent
mega64 0:38ccae254a29 442 // to ld's --wrap. It does have a --redirect, but that doesn't help, since redirecting
mega64 0:38ccae254a29 443 // 'main' to another symbol looses the original 'main' symbol. However, its startup
mega64 0:38ccae254a29 444 // code will call a function to setup argc and argv (__iar_argc_argv) if it is defined.
mega64 0:38ccae254a29 445 // Since mbed doesn't use argc/argv, we use this function to call our mbed_main.
mega64 0:38ccae254a29 446 extern "C" void __iar_argc_argv() {
mega64 0:38ccae254a29 447 mbed_sdk_init();
mega64 0:38ccae254a29 448 mbed_main();
mega64 0:38ccae254a29 449 }
mega64 0:38ccae254a29 450 #endif
mega64 0:38ccae254a29 451
mega64 0:38ccae254a29 452 // Provide implementation of _sbrk (low-level dynamic memory allocation
mega64 0:38ccae254a29 453 // routine) for GCC_ARM which compares new heap pointer with MSP instead of
mega64 0:38ccae254a29 454 // SP. This make it compatible with RTX RTOS thread stacks.
mega64 0:38ccae254a29 455 #if defined(TOOLCHAIN_GCC_ARM)
mega64 0:38ccae254a29 456 // Linker defined symbol used by _sbrk to indicate where heap should start.
mega64 0:38ccae254a29 457 extern "C" int __end__;
mega64 0:38ccae254a29 458
mega64 0:38ccae254a29 459 // Turn off the errno macro and use actual global variable instead.
mega64 0:38ccae254a29 460 #undef errno
mega64 0:38ccae254a29 461 extern "C" int errno;
mega64 0:38ccae254a29 462
mega64 0:38ccae254a29 463 // For ARM7 only
mega64 0:38ccae254a29 464 register unsigned char * stack_ptr __asm ("sp");
mega64 0:38ccae254a29 465
mega64 0:38ccae254a29 466 // Dynamic memory allocation related syscall.
mega64 0:38ccae254a29 467 extern "C" caddr_t _sbrk(int incr) {
mega64 0:38ccae254a29 468 static unsigned char* heap = (unsigned char*)&__end__;
mega64 0:38ccae254a29 469 unsigned char* prev_heap = heap;
mega64 0:38ccae254a29 470 unsigned char* new_heap = heap + incr;
mega64 0:38ccae254a29 471
mega64 0:38ccae254a29 472 #if defined(TARGET_ARM7)
mega64 0:38ccae254a29 473 if (new_heap >= stack_ptr) {
mega64 0:38ccae254a29 474 #else
mega64 0:38ccae254a29 475 if (new_heap >= (unsigned char*)__get_MSP()) {
mega64 0:38ccae254a29 476 #endif
mega64 0:38ccae254a29 477 errno = ENOMEM;
mega64 0:38ccae254a29 478 return (caddr_t)-1;
mega64 0:38ccae254a29 479 }
mega64 0:38ccae254a29 480
mega64 0:38ccae254a29 481 heap = new_heap;
mega64 0:38ccae254a29 482 return (caddr_t) prev_heap;
mega64 0:38ccae254a29 483 }
mega64 0:38ccae254a29 484 #endif