/* ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ #include #include #include "ch.h" #include "hal.h" #include "ch_test.h" #include "chprintf.h" #include "shell.h" #include "ff.h" #include "usbcfg.h" /*===========================================================================*/ /* Card insertion monitor. */ /*===========================================================================*/ #define POLLING_INTERVAL 10 #define POLLING_DELAY 10 /** * @brief Card monitor timer. */ static virtual_timer_t tmr; /** * @brief Debounce counter. */ static unsigned cnt; /** * @brief Card event sources. */ static event_source_t inserted_event, removed_event; /** * @brief Insertion monitor timer callback function. * * @param[in] p pointer to the @p BaseBlockDevice object * * @notapi */ static void tmrfunc(void *p) { BaseBlockDevice *bbdp = p; chSysLockFromISR(); if (cnt > 0) { if (blkIsInserted(bbdp)) { if (--cnt == 0) { chEvtBroadcastI(&inserted_event); } } else cnt = POLLING_INTERVAL; } else { if (!blkIsInserted(bbdp)) { cnt = POLLING_INTERVAL; chEvtBroadcastI(&removed_event); } } chVTSetI(&tmr, MS2ST(POLLING_DELAY), tmrfunc, bbdp); chSysUnlockFromISR(); } /** * @brief Polling monitor start. * * @param[in] p pointer to an object implementing @p BaseBlockDevice * * @notapi */ static void tmr_init(void *p) { chEvtObjectInit(&inserted_event); chEvtObjectInit(&removed_event); chSysLock(); cnt = POLLING_INTERVAL; chVTSetI(&tmr, MS2ST(POLLING_DELAY), tmrfunc, p); chSysUnlock(); } /*===========================================================================*/ /* FatFs related. */ /*===========================================================================*/ /** * @brief FS object. */ static FATFS SDC_FS; /* FS mounted and ready.*/ static bool fs_ready = FALSE; /* Generic large buffer.*/ static uint8_t fbuff[1024]; static FRESULT scan_files(BaseSequentialStream *chp, char *path) { FRESULT res; FILINFO fno; DIR dir; int i; char *fn; #if _USE_LFN fno.lfname = 0; fno.lfsize = 0; #endif res = f_opendir(&dir, path); if (res == FR_OK) { i = strlen(path); for (;;) { res = f_readdir(&dir, &fno); if (res != FR_OK || fno.fname[0] == 0) break; if (fno.fname[0] == '.') continue; fn = fno.fname; if (fno.fattrib & AM_DIR) { path[i++] = '/'; strcpy(&path[i], fn); res = scan_files(chp, path); if (res != FR_OK) break; path[--i] = 0; } else { chprintf(chp, "%s/%s\r\n", path, fn); } } } return res; } /*===========================================================================*/ /* Command line related. */ /*===========================================================================*/ #define SHELL_WA_SIZE THD_WORKING_AREA_SIZE(2048) static void cmd_tree(BaseSequentialStream *chp, int argc, char *argv[]) { FRESULT err; uint32_t clusters; FATFS *fsp; (void)argv; if (argc > 0) { chprintf(chp, "Usage: tree\r\n"); return; } if (!fs_ready) { chprintf(chp, "File System not mounted\r\n"); return; } err = f_getfree("/", &clusters, &fsp); if (err != FR_OK) { chprintf(chp, "FS: f_getfree() failed\r\n"); return; } chprintf(chp, "FS: %lu free clusters, %lu sectors per cluster, %lu bytes free\r\n", clusters, (uint32_t)SDC_FS.csize, clusters * (uint32_t)SDC_FS.csize * (uint32_t)MMCSD_BLOCK_SIZE); fbuff[0] = 0; scan_files(chp, (char *)fbuff); } static const ShellCommand commands[] = { {"tree", cmd_tree}, {NULL, NULL} }; static const ShellConfig shell_cfg1 = { (BaseSequentialStream *)&SDU1, commands }; /*===========================================================================*/ /* Main and generic code. */ /*===========================================================================*/ static thread_t *shelltp = NULL; /* * Card insertion event. */ static void InsertHandler(eventid_t id) { FRESULT err; (void)id; /* * On insertion SDC initialization and FS mount. */ if (sdcConnect(&SDCD1)) return; err = f_mount(&SDC_FS, "/", 1); if (err != FR_OK) { sdcDisconnect(&SDCD1); return; } fs_ready = TRUE; } /* * Card removal event. */ static void RemoveHandler(eventid_t id) { (void)id; sdcDisconnect(&SDCD1); fs_ready = FALSE; } /* * Shell exit event. */ static void ShellHandler(eventid_t id) { (void)id; if (chThdTerminatedX(shelltp)) { chThdWait(shelltp); /* Returning memory to heap. */ shelltp = NULL; } } /* * Green LED blinker thread, times are in milliseconds. */ static THD_WORKING_AREA(waThread1, 128); static THD_FUNCTION(Thread1, arg) { (void)arg; chRegSetThreadName("blinker"); while (true) { palTogglePad(GPIOF, GPIOF_LED1); chThdSleepMilliseconds(fs_ready ? 125 : 500); } } /* * Application entry point. */ int main(void) { static const evhandler_t evhndl[] = { InsertHandler, RemoveHandler, ShellHandler }; event_listener_t el0, el1, el2; /* * System initializations. * - HAL initialization, this also initializes the configured device drivers * and performs the board-specific initializations. * - Kernel initialization, the main() function becomes a thread and the * RTOS is active. */ halInit(); chSysInit(); /* * Initializes a serial-over-USB CDC driver. */ sduObjectInit(&SDU1); sduStart(&SDU1, &serusbcfg); /* * Activates the USB driver and then the USB bus pull-up on D+. * Note, a delay is inserted in order to not have to disconnect the cable * after a reset. */ usbDisconnectBus(serusbcfg.usbp); chThdSleepMilliseconds(1500); usbStart(serusbcfg.usbp, &usbcfg); usbConnectBus(serusbcfg.usbp); /* * Shell manager initialization. */ shellInit(); /* * Activates the card insertion monitor. */ tmr_init(&SDCD1); /* * Creates the blinker thread. */ chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL); /* * Normal main() thread activity, handling SD card events and shell * start/exit. */ chEvtRegister(&inserted_event, &el0, 0); chEvtRegister(&removed_event, &el1, 1); chEvtRegister(&shell_terminated, &el2, 2); while (true) { if (!shelltp && (SDU1.config->usbp->state == USB_ACTIVE)) { shelltp = chThdCreateFromHeap(NULL, SHELL_WA_SIZE, "shell", NORMALPRIO + 1, shellThread, (void *)&shell_cfg1); } chEvtDispatch(evhndl, chEvtWaitOneTimeout(ALL_EVENTS, MS2ST(500))); } } href='#n127'>127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531