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   1 /***************************************************************************
   2  *   Copyright (C) 2007-2009 by Øyvind Harboe                              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include <helper/types.h>
  25 #include <jtag/jtag.h>
  26 #include <helper/ioutil.h>
  27 #include <helper/configuration.h>
  28
  29 #include <server/server.h>
  30 #include <server/telnet_server.h>
  31 #include <server/gdb_server.h>
  32 #include <openocd.h>
  33
  34 #include <helper/time_support.h>
  35 #include <sys/time.h>
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <unistd.h>
  40 #include <errno.h>
  41
  42 #include <cyg/io/flash.h>
  43 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  44 #include <network.h>
  45
  46 #include <fcntl.h>
  47 #include <sys/stat.h>
  48 #include <cyg/fileio/fileio.h>
  49 #include <dirent.h>
  50 #include <cyg/athttpd/http.h>
  51 #include <cyg/athttpd/socket.h>
  52 #include <cyg/athttpd/handler.h>
  53 #include <cyg/athttpd/cgi.h>
  54 #include <cyg/athttpd/forms.h>
  55 #include <cyg/discover/discover.h>
  56 #include <cyg/hal/hal_diag.h>
  57 #include <cyg/kernel/kapi.h>
  58 #include <cyg/io/serialio.h>
  59 #include <cyg/io/io.h>
  60 #include <netinet/tcp.h>
  61 #include "rom.h"
  62 #include <sys/ioctl.h>
  63 #include <sys/socket.h>
  64 #include <netinet/in.h>
  65 #include <net/if.h>
  66 #include <arpa/inet.h>
  67 #include <sys/types.h>
  68 #include <sys/socket.h>
  69 #include <netdb.h>
  70 #include <netinet/in.h>
  71 #include <unistd.h>
  72 #include <arpa/inet.h>
  73 #include <stdio.h>
  74 #include <ifaddrs.h>
  75 #include <string.h>
  76
  77 #include <unistd.h>
  78 #include <stdio.h>
  79
  80 #include <openocd.h>
  81
  82 #ifdef CYGPKG_HAL_NIOS2
  83 #define ZY1000_SER_DEV "/dev/uart_0"
  84 #else
  85 #define ZY1000_SER_DEV "/dev/ser0"
  86
  87 #endif
  88
  89
  90 #define MAX_IFS 64
  91 #if defined(CYGPKG_NET_FREEBSD_STACK)
  92 #include <tftp_support.h>
  93 /* posix compatibility broken*/
  94 struct tftpd_fileops fileops =
  95 {
  96         (int (*)(const char *, int))open,
  97         close,
  98         (int (*)(int, const void *, int))write,
  99         (int (*)(int, void *, int))read
 100 };
 101
 102 #endif
 103
 104
 105 void diag_write(char *buf, int len)
 106 {
 107         int j;
 108         for (j = 0; j < len; j++)
 109         {
 110                 diag_printf("%c", buf[j]);
 111         }
 112 }
 113
 114 static bool serialLog = true;
 115 static bool writeLog = true;
 116
 117 char hwaddr[512];
 118
 119
 120 extern struct flash_driver *flash_drivers[];
 121 extern struct target_type *target_types[];
 122
 123 #ifdef CYGPKG_PROFILE_GPROF
 124 #include <cyg/profile/profile.h>
 125
 126 extern char _stext, _etext; // Defined by the linker
 127
 128 static char *start_of_code=&_stext;
 129 static char *end_of_code=&_etext;
 130
 131 void start_profile(void)
 132 {
 133         // This starts up the system-wide profiling, gathering
 134         // profile information on all of the code, with a 16 byte
 135         // "bucket" size, at a rate of 100us/profile hit.
 136         // Note: a bucket size of 16 will give pretty good function
 137         //       resolution.  Much smaller and the buffer becomes
 138         //       much too large for very little gain.
 139         // Note: a timer period of 100us is also a reasonable
 140         //       compromise.  Any smaller and the overhead of
 141         //       handling the timter (profile) interrupt could
 142         //       swamp the system.  A fast processor might get
 143         //       by with a smaller value, but a slow one could
 144         //       even be swamped by this value.  If the value is
 145         //       too large, the usefulness of the profile is reduced.
 146
 147         // no more interrupts than 1/10ms.
 148         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 149         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 150         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 151 }
 152 #endif
 153
 154 static FILE *log;
 155
 156 static char reboot_stack[2048];
 157
 158 static void zylinjtag_reboot(cyg_addrword_t data)
 159 {
 160         serialLog = true;
 161         diag_printf("Rebooting in 500 ticks..\n");
 162         cyg_thread_delay(500);
 163         diag_printf("Unmounting /config..\n");
 164         umount("/config");
 165         diag_printf("Rebooting..\n");
 166         HAL_PLATFORM_RESET();
 167 }
 168 static cyg_thread zylinjtag_thread_object;
 169 static cyg_handle_t zylinjtag_thread_handle;
 170
 171 void reboot(void)
 172 {
 173         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 174                         (void *) reboot_stack, sizeof(reboot_stack),
 175                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 176         cyg_thread_resume(zylinjtag_thread_handle);
 177 }
 178
 179 static char zylinjtag_reboot_port_stack[2048];
 180 static cyg_thread zylinjtag_reboot_port_thread_object;
 181 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 182
 183 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 184 {
 185         int so_reuseaddr_option = 1;
 186
 187         int fd;
 188         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 189         {
 190                 LOG_ERROR("error creating socket: %s", strerror(errno));
 191                 exit(-1);
 192         }
 193
 194         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 195                         sizeof(int));
 196
 197         struct sockaddr_in sin;
 198         unsigned int address_size;
 199         address_size = sizeof(sin);
 200         memset(&sin, 0, sizeof(sin));
 201         sin.sin_family = AF_INET;
 202         sin.sin_addr.s_addr = INADDR_ANY;
 203         sin.sin_port = htons(1234);
 204
 205         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 206         {
 207                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 208                 exit(-1);
 209         }
 210
 211         if (listen(fd, 1) == -1)
 212         {
 213                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 214                 exit(-1);
 215         }
 216         //      socket_nonblock(fd);
 217
 218
 219         accept(fd, (struct sockaddr *) &sin, &address_size);
 220
 221         diag_printf("Got reboot signal on port 1234");
 222
 223         reboot();
 224
 225 }
 226
 227 void reboot_port(void)
 228 {
 229         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 230                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 231                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 232         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 233 }
 234
 235 int configuration_output_handler(struct command_context *context,
 236                 const char* line)
 237 {
 238         diag_printf("%s", line);
 239
 240         return ERROR_OK;
 241 }
 242
 243 int zy1000_configuration_output_handler_log(struct command_context *context,
 244                 const char* line)
 245 {
 246         LOG_USER_N("%s", line);
 247
 248         return ERROR_OK;
 249 }
 250
 251 #ifdef CYGPKG_PROFILE_GPROF
 252 //extern int64_t totaltime;
 253
 254 static int zylinjtag_Jim_Command_profile(Jim_Interp *interp, int argc,
 255                 Jim_Obj * const *argv)
 256 {
 257         if ((argc == 2) && (strcmp(Jim_GetString(argv[1], NULL), "stats")==0))
 258         {
 259 //              profile_off();
 260                 //LOG_USER("Stats %dms sleeping in select()", (int)totaltime);
 261         } else
 262         {
 263                 LOG_USER("Profiling started");
 264                 start_profile();
 265                 //totaltime = 0;
 266         }
 267         return ERROR_OK;
 268 }
 269
 270 #endif
 271
 272 externC void phi_init_all_network_interfaces(void);
 273
 274 struct command_context *cmd_ctx;
 275
 276 static bool webRunning = false;
 277
 278 void keep_webserver(void)
 279 {
 280         // Target initialisation is only attempted at startup, so we sleep forever and
 281         // let the http server bail us out(i.e. get config files set up).
 282         diag_printf("OpenOCD has invoked exit().\n"
 283                 "Use web server to correct any configuration settings and reboot.\n");
 284         if (!webRunning)
 285                 reboot();
 286
 287         // exit() will terminate the current thread and we we'll then sleep eternally or
 288         // we'll have a reboot scheduled.
 289 }
 290
 291 extern void printDccChar(char c);
 292
 293 static char logBuffer[128 * 1024];
 294 static const int logSize = sizeof(logBuffer);
 295 int writePtr = 0;
 296 int logCount = 0;
 297
 298 void _zylinjtag_diag_write_char(char c, void **param)
 299 {
 300         if (writeLog)
 301         {
 302                 logBuffer[writePtr] = c;
 303                 writePtr = (writePtr + 1) % logSize;
 304                 logCount++;
 305         }
 306         if (serialLog)
 307         {
 308                 if (c == '\n')
 309                 {
 310                         HAL_DIAG_WRITE_CHAR('\r');
 311                 }
 312                 HAL_DIAG_WRITE_CHAR(c);
 313         }
 314
 315 #ifdef CYGPKG_HAL_ZYLIN_PHI
 316         printDccChar(c);
 317 #endif
 318 }
 319
 320 void copyfile(char *name2, char *name1);
 321
 322 void copydir(char *name, char *destdir);
 323
 324 #if 0
 325 MTAB_ENTRY(romfs_mte1,
 326                 "/rom",
 327                 "romfs",
 328                 "",
 329                 (CYG_ADDRWORD) &filedata[0]);
 330 #endif
 331
 332 void openocd_sleep_prelude(void)
 333 {
 334         cyg_mutex_unlock(&httpstate.jim_lock);
 335 }
 336
 337 void openocd_sleep_postlude(void)
 338 {
 339         cyg_mutex_lock(&httpstate.jim_lock);
 340 }
 341
 342 void format(void)
 343 {
 344 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
 345         diag_printf("Formatting JFFS2...\n");
 346
 347         cyg_io_handle_t handle;
 348
 349         Cyg_ErrNo err;
 350         err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
 351         if (err != ENOERR)
 352         {
 353                 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
 354                 reboot();
 355         }
 356
 357         cyg_uint32 len;
 358         cyg_io_flash_getconfig_devsize_t ds;
 359         len = sizeof(ds);
 360         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
 361         if (err != ENOERR)
 362         {
 363                 diag_printf("Flash error cyg_io_get_config %d\n", err);
 364                 reboot();
 365         }
 366
 367         cyg_io_flash_getconfig_erase_t e;
 368         len = sizeof(e);
 369
 370         e.offset = 0;
 371         e.len = ds.dev_size;
 372
 373         diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
 374         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
 375         if (err != ENOERR)
 376         {
 377                 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
 378                 reboot();
 379         }
 380
 381         diag_printf("Flash formatted successfully\n");
 382 #endif
 383
 384         reboot();
 385 }
 386
 387 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
 388                 Jim_Obj * const *argv)
 389 {
 390         if (argc != 1)
 391         {
 392                 return JIM_ERR;
 393         }
 394
 395         format();
 396         for (;;)
 397                 ;
 398 }
 399
 400 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
 401                 Jim_Obj * const *argv)
 402 {
 403         cyg_handle_t thread = 0;
 404         cyg_uint16 id = 0;
 405         Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
 406
 407         /* Loop over the threads, and generate a table row for
 408          * each.
 409          */
 410         while (cyg_thread_get_next(&thread, &id))
 411         {
 412                 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
 413
 414                 cyg_thread_info info;
 415                 char *state_string;
 416
 417                 cyg_thread_get_info(thread, id, &info);
 418
 419                 if (info.name == NULL)
 420                         info.name = "<no name>";
 421
 422                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 423                                 info.name, strlen(info.name)));
 424
 425                 /* Translate the state into a string.
 426                  */
 427                 if (info.state == 0)
 428                         state_string = "RUN";
 429                 else if (info.state & 0x04)
 430                         state_string = "SUSP";
 431                 else
 432                         switch (info.state & 0x1b)
 433                         {
 434                         case 0x01:
 435                                 state_string = "SLEEP";
 436                                 break;
 437                         case 0x02:
 438                                 state_string = "CNTSLEEP";
 439                                 break;
 440                         case 0x08:
 441                                 state_string = "CREATE";
 442                                 break;
 443                         case 0x10:
 444                                 state_string = "EXIT";
 445                                 break;
 446                         default:
 447                                 state_string = "????";
 448                                 break;
 449                         }
 450
 451                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 452                                 state_string, strlen(state_string)));
 453
 454                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
 455                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 456                                 info.set_pri));
 457                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 458                                 info.cur_pri));
 459
 460                 Jim_ListAppendElement(interp, threads, threadObj);
 461         }
 462         Jim_SetResult(interp, threads);
 463
 464         return JIM_OK;
 465 }
 466
 467 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
 468                 Jim_Obj * const *argv)
 469 {
 470         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 471
 472         if (logCount >= logSize)
 473         {
 474                 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
 475                                 % logSize, logSize - logCount % logSize);
 476         }
 477         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
 478
 479         Jim_SetResult(interp, tclOutput);
 480         return JIM_OK;
 481 }
 482
 483 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
 484                 Jim_Obj * const *argv)
 485 {
 486         reboot();
 487         return JIM_OK;
 488 }
 489
 490 static void zylinjtag_startNetwork(void)
 491 {
 492         // Bring TCP/IP up immediately before we're ready to accept commands.
 493         //
 494         // That is as soon as a PING responds, we're accepting telnet sessions.
 495 #if defined(CYGPKG_NET_FREEBSD_STACK)
 496         phi_init_all_network_interfaces();
 497 #else
 498         lwip_init();
 499 #endif
 500         if (!eth0_up)
 501         {
 502                 diag_printf("Network not up and running\n");
 503                 exit(-1);
 504         }
 505
 506         /* very first thing we want is a reboot capability */
 507         reboot_port();
 508
 509 #if defined(CYGPKG_NET_FREEBSD_STACK)
 510         /*start TFTP*/
 511         tftpd_start(69, &fileops);
 512 #endif
 513
 514         cyg_httpd_init_tcl_interpreter();
 515
 516         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 517                         NULL, NULL);
 518         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 519                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 520         Jim_CreateCommand(httpstate.jim_interp, "threads",
 521                         zylinjtag_Jim_Command_threads, NULL, NULL);
 522         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 523                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 524
 525         cyg_httpd_start();
 526
 527         webRunning = true;
 528
 529         diag_printf("Web server running\n");
 530
 531         int s;
 532         struct ifreq ifr;
 533         s = socket(AF_INET, SOCK_DGRAM, 0);
 534         if (s >= 0)
 535         {
 536                 strcpy(ifr.ifr_name, "eth0");
 537                 int res;
 538                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 539                 close(s);
 540
 541                 if (res < 0)
 542                 {
 543                         diag_printf("Can't obtain MAC address\n");
 544                         reboot();
 545                 }
 546         }
 547
 548         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 549                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 550                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 551                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 552                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 553                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 554                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 555
 556         discover_message
 557                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 558
 559         discover_launch();
 560 }
 561
 562 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 563                 cyg_addrword_t info)
 564 {
 565         writeLog = false;
 566         serialLog = true;
 567         char *infoStr = "unknown";
 568         switch (exception)
 569         {
 570 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 571         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 572         infoStr = "undefined instruction";
 573         break;
 574         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 575         infoStr = "software interrupt";
 576         break;
 577         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 578         infoStr = "abort prefetch";
 579         break;
 580         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 581         infoStr = "abort data";
 582         break;
 583 #endif
 584         default:
 585                 break;
 586         }
 587
 588         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 589
 590         diag_printf("Dumping log\n---\n");
 591         if (logCount >= logSize)
 592         {
 593                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 594         }
 595         diag_write(logBuffer, writePtr);
 596
 597         diag_printf("---\nLogdump complete.\n");
 598         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 599         diag_printf("\n---\nRebooting\n");
 600         HAL_PLATFORM_RESET();
 601
 602 }
 603
 604 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 605 static void setHandler(cyg_code_t exception)
 606 {
 607         cyg_exception_handler_t *old_handler;
 608         cyg_addrword_t old_data;
 609
 610         cyg_exception_set_handler(exception, print_exception_handler, 0,
 611                         &old_handler, &old_data);
 612 }
 613 #endif
 614
 615 static cyg_thread zylinjtag_uart_thread_object;
 616 static cyg_handle_t zylinjtag_uart_thread_handle;
 617 static char uart_stack[4096];
 618
 619 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 620 static char backwardBuffer[1024];
 621
 622 void setNoDelay(int session, int flag)
 623 {
 624 #if 1
 625         // This decreases latency dramatically for e.g. GDB load which
 626         // does not have a sliding window protocol
 627         //
 628         // Can cause *lots* of TCP/IP packets to be sent and it would have
 629         // to be enabled/disabled on the fly to avoid the CPU being
 630         // overloaded...
 631         setsockopt(session, /* socket affected */
 632         IPPROTO_TCP, /* set option at TCP level */
 633         TCP_NODELAY, /* name of option */
 634         (char *) &flag, /* the cast is historical
 635          cruft */
 636         sizeof(int)); /* length of option value */
 637 #endif
 638 }
 639
 640 #define TEST_TCPIP() 0
 641
 642 #if TEST_TCPIP
 643 struct
 644 {
 645         int req;
 646         int actual;
 647         int req2;
 648         int actual2;
 649 } tcpipSent[512 * 1024];
 650 int cur;
 651 #endif
 652
 653 static void zylinjtag_uart(cyg_addrword_t data)
 654 {
 655         int so_reuseaddr_option = 1;
 656
 657         int fd;
 658         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 659         {
 660                 LOG_ERROR("error creating socket: %s", strerror(errno));
 661                 exit(-1);
 662         }
 663
 664         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 665                         sizeof(int));
 666
 667         struct sockaddr_in sin;
 668         unsigned int address_size;
 669         address_size = sizeof(sin);
 670         memset(&sin, 0, sizeof(sin));
 671         sin.sin_family = AF_INET;
 672         sin.sin_addr.s_addr = INADDR_ANY;
 673         sin.sin_port = htons(5555);
 674
 675         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 676         {
 677                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 678                 exit(-1);
 679         }
 680
 681         if (listen(fd, 1) == -1)
 682         {
 683                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 684                 exit(-1);
 685         }
 686         //      socket_nonblock(fd);
 687
 688
 689         for (;;)
 690         {
 691                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 692                 if (session < 0)
 693                 {
 694                         continue;
 695                 }
 696
 697                 setNoDelay(session, 1);
 698                 int oldopts = fcntl(session, F_GETFL, 0);
 699                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 700
 701                 int serHandle = open(ZY1000_SER_DEV, O_RDWR | O_NONBLOCK);
 702                 if (serHandle < 0)
 703                 {
 704                         close(session);
 705                         continue;
 706                 }
 707
 708 #ifdef CYGPKG_PROFILE_GPROF
 709                 start_profile();
 710 #endif
 711                 size_t actual = 0;
 712                 size_t actual2 = 0;
 713                 size_t pos, pos2;
 714                 pos = 0;
 715                 pos2 = 0;
 716 #if TEST_TCPIP
 717                 cur = 0;
 718 #endif
 719                 for (;;)
 720                 {
 721                         fd_set write_fds;
 722                         fd_set read_fds;
 723                         FD_ZERO(&write_fds);
 724                         FD_ZERO(&read_fds);
 725                         int fd_max = -1;
 726                         FD_SET(session, &read_fds);
 727                         fd_max = session;
 728                         FD_SET(serHandle, &read_fds);
 729                         if (serHandle > fd_max)
 730                         {
 731                                 fd_max = serHandle;
 732                         }
 733                         /* Wait... */
 734
 735                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 736                         if ((actual == 0) && (actual2 == 0))
 737                         {
 738                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 739                                 if (retval <= 0)
 740                                 {
 741                                         break;
 742                                 }
 743                         }
 744
 745                         if (actual2 <= 0)
 746                         {
 747                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 748                                 int t;
 749                                 t = read(serHandle, backwardBuffer,
 750                                                 sizeof(backwardBuffer));
 751                                 actual2 = t;
 752                                 if (t < 0)
 753                                 {
 754                                         if (errno != EAGAIN)
 755                                         {
 756                                                 goto closeSession;
 757                                         }
 758                                         actual2 = 0;
 759                                 }
 760                                 pos2 = 0;
 761                         }
 762
 763                         size_t y = 0;
 764                         if (actual2 > 0)
 765                         {
 766                                 int written = write(session, backwardBuffer + pos2, actual2);
 767                                 if (written <= 0)
 768                                         goto closeSession;
 769                                 actual2 -= written;
 770                                 pos2 += written;
 771                                 y = written;
 772                         }
 773
 774                         if (FD_ISSET(session, &read_fds)
 775                                         && (sizeof(forwardBuffer) > actual))
 776                         {
 777                                 // NB! Here it is important that we empty the TCP/IP read buffer
 778                                 // to make transmission tick right
 779                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 780                                 pos = 0;
 781                                 int t;
 782                                 // this will block if there is no data at all
 783                                 t = read_socket(session, forwardBuffer + actual,
 784                                                 sizeof(forwardBuffer) - actual);
 785                                 if (t <= 0)
 786                                 {
 787                                         goto closeSession;
 788                                 }
 789                                 actual += t;
 790                         }
 791
 792                         int y2 = 0;
 793                         if (actual > 0)
 794                         {
 795                                 /* Do not put things into the serial buffer if it has something to send
 796                                  * as that can cause a single byte to be sent at the time.
 797                                  *
 798                                  *
 799                                  */
 800                                 int written = write(serHandle, forwardBuffer + pos, actual);
 801                                 if (written < 0)
 802                                 {
 803                                         if (errno != EAGAIN)
 804                                         {
 805                                                 goto closeSession;
 806                                         }
 807                                         // The serial buffer is full
 808                                         written = 0;
 809                                 }
 810                                 else
 811                                 {
 812                                         actual -= written;
 813                                         pos += written;
 814                                 }
 815                                 y2 = written;
 816                         }
 817 #if TEST_TCPIP
 818                         if (cur < 1024)
 819                         {
 820                                 tcpipSent[cur].req = x;
 821                                 tcpipSent[cur].actual = y;
 822                                 tcpipSent[cur].req2 = x2;
 823                                 tcpipSent[cur].actual2 = y2;
 824                                 cur++;
 825                         }
 826 #endif
 827                 }
 828                 closeSession: close(session);
 829                 close(serHandle);
 830
 831 #if TEST_TCPIP
 832                 int i;
 833                 for (i = 0; i < 1024; i++)
 834                 {
 835                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 836                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 837
 838                 }
 839 #endif
 840         }
 841         close(fd);
 842
 843 }
 844
 845 void startUart(void)
 846 {
 847         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 848                         (void *) uart_stack, sizeof(uart_stack),
 849                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 850         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 851         cyg_thread_resume(zylinjtag_uart_thread_handle);
 852 }
 853
 854 static int zylinjtag_Jim_Command_uart(Jim_Interp *interp, int argc,
 855                 Jim_Obj * const *argv)
 856 {
 857         static int current_baud = 38400;
 858         if (argc == 1)
 859         {
 860                 command_print(cmd_ctx, "%d", current_baud);
 861                 return JIM_OK;
 862         }
 863         else if (argc != 2)
 864         {
 865                 return JIM_ERR;
 866         }
 867
 868         long new_baudrate;
 869         if (Jim_GetLong(interp, argv[1], &new_baudrate) != JIM_OK)
 870                 return JIM_ERR;
 871
 872         current_baud = new_baudrate;
 873
 874         int baud;
 875         switch (current_baud)
 876         {
 877         case 9600:
 878                 baud = CYGNUM_SERIAL_BAUD_9600;
 879                 break;
 880         case 19200:
 881                 baud = CYGNUM_SERIAL_BAUD_19200;
 882                 break;
 883         case 38400:
 884                 baud = CYGNUM_SERIAL_BAUD_38400;
 885                 break;
 886         case 57600:
 887                 baud = CYGNUM_SERIAL_BAUD_57600;
 888                 break;
 889         case 115200:
 890                 baud = CYGNUM_SERIAL_BAUD_115200;
 891                 break;
 892         case 230400:
 893                 baud = CYGNUM_SERIAL_BAUD_230400;
 894                 break;
 895         default:
 896                 command_print(cmd_ctx, "unsupported baudrate");
 897                 return ERROR_INVALID_ARGUMENTS;
 898         }
 899
 900         cyg_serial_info_t buf;
 901         cyg_uint32 len = 1;
 902         //get existing serial configuration
 903         len = sizeof(cyg_serial_info_t);
 904         int err;
 905         cyg_io_handle_t serial_handle;
 906
 907         err = cyg_io_lookup(ZY1000_SER_DEV, &serial_handle);
 908         if (err != ENOERR)
 909         {
 910                 LOG_ERROR("Could not open serial port\n");
 911                 return JIM_ERR;
 912         }
 913
 914         err = cyg_io_get_config(serial_handle,
 915                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 916         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 917                         &len);
 918         if (err != ENOERR)
 919         {
 920                 LOG_ERROR("Failed to get serial port settings %d", err);
 921                 return JIM_ERR;
 922         }
 923         buf.baud = baud;
 924
 925         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 926                         &len);
 927         if (err != ENOERR)
 928         {
 929                 LOG_ERROR("Failed to set serial port settings %d", err);
 930                 return JIM_ERR;
 931         }
 932
 933         return JIM_OK;
 934 }
 935
 936 bool logAllToSerial = false;
 937
 938
 939 int boolParam(char *var);
 940
 941
 942 static const char *zylin_config_dir="/config/settings";
 943
 944 static int add_default_dirs(void)
 945 {
 946         add_script_search_dir(zylin_config_dir);
 947         add_script_search_dir("/rom/lib/openocd");
 948         add_script_search_dir("/rom");
 949         return ERROR_OK;
 950 }
 951
 952 int main(int argc, char *argv[])
 953 {
 954         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 955          * need to allocate towards the end of the heap.  */
 956
 957 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 958         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 959         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 960         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 961 #endif
 962
 963         int err;
 964
 965         atexit(keep_webserver);
 966
 967         diag_init_putc(_zylinjtag_diag_write_char);
 968         // We want this in the log.
 969         diag_printf("Zylin ZY1000.\n");
 970
 971         err = mount("", "/ram", "ramfs");
 972         if (err < 0)
 973         {
 974                 diag_printf("unable to mount ramfs\n");
 975         }
 976         chdir("/ram");
 977
 978         char address[16];
 979         sprintf(address, "%p", &filedata[0]);
 980         err = mount(address, "/rom", "romfs");
 981         if (err < 0)
 982         {
 983                 diag_printf("unable to mount /rom\n");
 984         }
 985
 986         err = mount("", "/log", "logfs");
 987         if (err < 0)
 988         {
 989                 diag_printf("unable to mount logfs\n");
 990         }
 991
 992         err = mount("", "/tftp", "tftpfs");
 993         if (err < 0)
 994         {
 995                 diag_printf("unable to mount logfs\n");
 996         }
 997
 998         log = fopen("/log/log", "w");
 999         if (log == NULL)
1000         {
1001                 diag_printf("Could not open log file /ram/log\n");
1002                 exit(-1);
1003         }
1004
1005
1006         copydir("/rom", "/ram/cgi");
1007
1008         err = mount("/dev/flash1", "/config", "jffs2");
1009         if (err < 0)
1010         {
1011                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1012                 err = mount("", "/config", "ramfs");
1013                 if (err < 0)
1014                 {
1015                         diag_printf("unable to mount /config as ramdisk.\n");
1016                         reboot();
1017                 }
1018         }
1019         else
1020         {
1021                 /* are we using a ram disk instead of a flash disk? This is used
1022                  * for ZY1000 live demo...
1023                  *
1024                  * copy over flash disk to ram block device
1025                  */
1026                 if (boolParam("ramdisk"))
1027                 {
1028                         diag_printf("Unmounting /config from flash and using ram instead\n");
1029                         err = umount("/config");
1030                         if (err < 0)
1031                         {
1032                                 diag_printf("unable to unmount jffs\n");
1033                                 reboot();
1034                         }
1035
1036                         err = mount("/dev/flash1", "/config2", "jffs2");
1037                         if (err < 0)
1038                         {
1039                                 diag_printf("unable to mount jffs\n");
1040                                 reboot();
1041                         }
1042
1043                         err = mount("", "/config", "ramfs");
1044                         if (err < 0)
1045                         {
1046                                 diag_printf("unable to mount ram block device\n");
1047                                 reboot();
1048                         }
1049
1050                         //              copydir("/config2", "/config");
1051                         copyfile("/config2/ip", "/config/ip");
1052                         copydir("/config2/settings", "/config/settings");
1053
1054                         umount("/config2");
1055                 }
1056         }
1057
1058         mkdir(zylin_config_dir, 0777);
1059         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1060         mkdir(dirname, 0777);
1061         free(dirname);
1062         dirname = alloc_printf("%s/board", zylin_config_dir);
1063         mkdir(dirname, 0777);
1064         free(dirname);
1065         dirname = alloc_printf("%s/event", zylin_config_dir);
1066         mkdir(dirname, 0777);
1067         free(dirname);
1068
1069         logAllToSerial = boolParam("logserial");
1070
1071         // We need the network & web server in case there is something wrong with
1072         // the config files that invoke exit()
1073         zylinjtag_startNetwork();
1074
1075         /* we're going to access the jim interpreter from here on... */
1076         openocd_sleep_postlude();
1077         startUart();
1078
1079         add_default_dirs();
1080
1081         /* initialize commandline interface */
1082         struct command_context * cmd_ctx;
1083         struct command_context *setup_command_handler(Jim_Interp *interp);
1084         cmd_ctx = setup_command_handler(httpstate.jim_interp);
1085         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1086         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1087
1088         if (ioutil_init(cmd_ctx) != ERROR_OK)
1089                 return EXIT_FAILURE;
1090
1091 #ifdef CYGPKG_PROFILE_GPROF
1092         Jim_CreateCommand(httpstate.jim_interp, "zy1000_profile", zylinjtag_Jim_Command_profile,
1093                         NULL, NULL);
1094 #endif
1095
1096         Jim_CreateCommand(httpstate.jim_interp, "uart", zylinjtag_Jim_Command_uart, NULL, NULL);
1097
1098
1099         log_init();
1100
1101         set_log_output(cmd_ctx, log);
1102
1103         LOG_DEBUG("log init complete");
1104
1105         //      diag_printf("Executing config files\n");
1106
1107         if (logAllToSerial)
1108         {
1109                 diag_printf(
1110                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1111                 command_run_line(cmd_ctx, "debug_level 3");
1112         }
1113
1114         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1115
1116         int ret;
1117         ret = server_init(cmd_ctx);
1118         if (ERROR_OK != ret)
1119                 return EXIT_FAILURE;
1120
1121         /* we MUST always run the init command as it will launch telnet sessions */
1122         command_run_line(cmd_ctx, "init");
1123
1124         // FIX!!!  Yuk!
1125         // diag_printf() is really invoked from many more places than we trust it
1126         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1127         //
1128         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1129         // fingers that it doesn't cause any crashes.
1130         diag_printf("Init complete, GDB & telnet servers launched.\n");
1131         command_set_output_handler(cmd_ctx,
1132                         zy1000_configuration_output_handler_log, NULL);
1133         if (!logAllToSerial)
1134         {
1135                 serialLog = false;
1136         }
1137
1138         /* handle network connections */
1139         server_loop(cmd_ctx);
1140         openocd_sleep_prelude();
1141
1142         /* shut server down */
1143         server_quit();
1144
1145         /* free commandline interface */
1146         command_done(cmd_ctx);
1147         umount("/config");
1148
1149         exit(0);
1150         for (;;)
1151                 ;
1152 }
1153
1154 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1155 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1156 {
1157         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1158         return 0;
1159 }
1160
1161 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1162
1163 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1164 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1165
1166 #include <pkgconf/system.h>
1167 #include <pkgconf/hal.h>
1168 #include <pkgconf/kernel.h>
1169 #include <pkgconf/io_fileio.h>
1170 #include <pkgconf/fs_rom.h>
1171
1172 #include <cyg/kernel/ktypes.h>         // base kernel types
1173 #include <cyg/infra/cyg_trac.h>        // tracing macros
1174 #include <cyg/infra/cyg_ass.h>         // assertion macros
1175 #include <cyg/fileio/fileio.h>
1176 #include <cyg/kernel/kapi.h>
1177 #include <cyg/infra/diag.h>
1178
1179 //==========================================================================
1180 // Eventually we want to eXecute In Place from the ROM in a protected
1181 // environment, so we'll need executables to be aligned to a boundary
1182 // suitable for MMU protection. A suitable boundary would be the 4k
1183 // boundary in all the CPU architectures I am currently aware of.
1184
1185 // Forward definitions
1186
1187 // Filesystem operations
1188 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1189 static int tftpfs_umount(cyg_mtab_entry *mte);
1190 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1191                 int mode, cyg_file *fte);
1192 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1193 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1194
1195 // File operations
1196 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1197 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1198 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1199
1200 //==========================================================================
1201 // Filesystem table entries
1202
1203 // -------------------------------------------------------------------------
1204 // Fstab entry.
1205 // This defines the entry in the filesystem table.
1206 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1207 // we should never block in any filesystem operations.
1208 #if 1
1209 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1210                 CYG_SYNCMODE_NONE,
1211                 tftpfs_mount,
1212                 tftpfs_umount,
1213                 tftpfs_open,
1214                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1215                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1216                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1217                 (cyg_fsop_rename *)cyg_fileio_erofs,
1218                 (cyg_fsop_link *)cyg_fileio_erofs,
1219                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1220                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1221                 (cyg_fsop_stat *)cyg_fileio_erofs,
1222                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1223                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1224 #endif
1225
1226 // -------------------------------------------------------------------------
1227 // mtab entry.
1228 // This defines a single ROMFS loaded into ROM at the configured address
1229 //
1230 // MTAB_ENTRY(rom_mte,  // structure name
1231 //              "/rom",         // mount point
1232 //              "romfs",        // FIlesystem type
1233 //              "",             // hardware device
1234 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1235 //);
1236
1237
1238 // -------------------------------------------------------------------------
1239 // File operations.
1240 // This set of file operations are used for normal open files.
1241
1242 static cyg_fileops tftpfs_fileops =
1243 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1244                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1245                 tftpfs_fo_fsync, tftpfs_fo_close,
1246                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1247                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1248                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1249
1250 // -------------------------------------------------------------------------
1251 // tftpfs_mount()
1252 // Process a mount request. This mainly finds root for the
1253 // filesystem.
1254
1255 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1256 {
1257         return ENOERR;
1258 }
1259
1260 static int tftpfs_umount(cyg_mtab_entry *mte)
1261 {
1262         return ENOERR;
1263 }
1264
1265 struct Tftp
1266 {
1267         int write;
1268         int readFile;
1269         cyg_uint8 *mem;
1270         int actual;
1271         char *server;
1272         char *file;
1273 };
1274
1275 static void freeTftp(struct Tftp *t)
1276 {
1277         if (t == NULL)
1278                 return;
1279         if (t->mem)
1280                 free(t->mem);
1281         if (t->server)
1282                 free(t->server);
1283         if (t->file)
1284                 free(t->file);
1285         free(t);
1286 }
1287
1288 static const int tftpMaxSize = 8192 * 1024;
1289 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1290                 int mode, cyg_file *file)
1291 {
1292         struct Tftp *tftp;
1293         tftp = malloc(sizeof(struct Tftp));
1294         if (tftp == NULL)
1295                 return EMFILE;
1296         memset(tftp, 0, sizeof(struct Tftp));
1297
1298         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1299         file->f_type = CYG_FILE_TYPE_FILE;
1300         file->f_ops = &tftpfs_fileops;
1301         file->f_offset = 0;
1302         file->f_data = 0;
1303         file->f_xops = 0;
1304
1305         tftp->mem = malloc(tftpMaxSize);
1306         if (tftp->mem == NULL)
1307         {
1308                 freeTftp(tftp);
1309                 return EMFILE;
1310         }
1311
1312         char *server = strchr(name, '/');
1313         if (server == NULL)
1314         {
1315                 freeTftp(tftp);
1316                 return EMFILE;
1317         }
1318
1319         tftp->server = malloc(server - name + 1);
1320         if (tftp->server == NULL)
1321         {
1322                 freeTftp(tftp);
1323                 return EMFILE;
1324         }
1325         strncpy(tftp->server, name, server - name);
1326         tftp->server[server - name] = 0;
1327
1328         tftp->file = strdup(server + 1);
1329         if (tftp->file == NULL)
1330         {
1331                 freeTftp(tftp);
1332                 return EMFILE;
1333         }
1334
1335         file->f_data = (CYG_ADDRWORD) tftp;
1336
1337         return ENOERR;
1338 }
1339
1340 static int fetchTftp(struct Tftp *tftp)
1341 {
1342         if (!tftp->readFile)
1343         {
1344                 int err;
1345                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1346                                 tftpMaxSize, TFTP_OCTET, &err);
1347
1348                 if (tftp->actual < 0)
1349                 {
1350                         return EMFILE;
1351                 }
1352                 tftp->readFile = 1;
1353         }
1354         return ENOERR;
1355 }
1356
1357 // -------------------------------------------------------------------------
1358 // tftpfs_fo_write()
1359 // Read data from file.
1360
1361 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1362 {
1363         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1364
1365         if (fetchTftp(tftp) != ENOERR)
1366                 return EMFILE;
1367
1368         int i;
1369         off_t pos = fp->f_offset;
1370         int resid = 0;
1371         for (i = 0; i < uio->uio_iovcnt; i++)
1372         {
1373                 cyg_iovec *iov = &uio->uio_iov[i];
1374                 char *buf = (char *) iov->iov_base;
1375                 off_t len = iov->iov_len;
1376
1377                 if (len + pos > tftp->actual)
1378                 {
1379                         len = tftp->actual - pos;
1380                 }
1381                 resid += iov->iov_len - len;
1382
1383                 memcpy(buf, tftp->mem + pos, len);
1384                 pos += len;
1385
1386         }
1387         uio->uio_resid = resid;
1388         fp->f_offset = pos;
1389
1390         return ENOERR;
1391 }
1392
1393 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1394 {
1395         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1396
1397         int i;
1398         off_t pos = fp->f_offset;
1399         int resid = 0;
1400         for (i = 0; i < uio->uio_iovcnt; i++)
1401         {
1402                 cyg_iovec *iov = &uio->uio_iov[i];
1403                 char *buf = (char *) iov->iov_base;
1404                 off_t len = iov->iov_len;
1405
1406                 if (len + pos > tftpMaxSize)
1407                 {
1408                         len = tftpMaxSize - pos;
1409                 }
1410                 resid += iov->iov_len - len;
1411
1412                 memcpy(tftp->mem + pos, buf, len);
1413                 pos += len;
1414
1415         }
1416         uio->uio_resid = resid;
1417         fp->f_offset = pos;
1418
1419         tftp->write = 1;
1420
1421         return ENOERR;
1422 }
1423
1424 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1425 {
1426         int error = ENOERR;
1427         return error;
1428 }
1429
1430 // -------------------------------------------------------------------------
1431 // romfs_fo_close()
1432 // Close a file. We just clear out the data pointer.
1433
1434 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1435 {
1436         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1437         int error = ENOERR;
1438
1439         if (tftp->write)
1440         {
1441                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1442                                 TFTP_OCTET, &error);
1443         }
1444
1445         freeTftp(tftp);
1446         fp->f_data = 0;
1447         return error;
1448 }
1449
1450 // -------------------------------------------------------------------------
1451 // romfs_fo_lseek()
1452 // Seek to a new file position.
1453
1454 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1455 {
1456         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1457         off_t pos = *apos;
1458
1459         if (fetchTftp(tftp) != ENOERR)
1460                 return EMFILE;
1461
1462         switch (whence)
1463         {
1464         case SEEK_SET:
1465                 // Pos is already where we want to be.
1466                 break;
1467
1468         case SEEK_CUR:
1469                 // Add pos to current offset.
1470                 pos += fp->f_offset;
1471                 break;
1472
1473         case SEEK_END:
1474                 // Add pos to file size.
1475                 pos += tftp->actual;
1476                 break;
1477
1478         default:
1479                 return EINVAL;
1480         }
1481
1482         // Check that pos is still within current file size, or at the
1483         // very end.
1484         if (pos < 0 || pos > tftp->actual)
1485                 return EINVAL;
1486
1487         // All OK, set fp offset and return new position.
1488         *apos = fp->f_offset = pos;
1489
1490         return ENOERR;
1491 }
1492
1493 void usleep(int us)
1494 {
1495         if (us > 10000)
1496                 cyg_thread_delay(us / 10000 + 1);
1497         else
1498                 HAL_DELAY_US(us);
1499 }
1500
1501 // Chunked version.
1502 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1503 {
1504         cyg_httpd_start_chunked("text");
1505         if (logCount >= logSize)
1506         {
1507                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1508                                 - logCount % logSize);
1509         }
1510         cyg_httpd_write_chunked(logBuffer, writePtr);
1511         cyg_httpd_end_chunked();
1512         return -1;
1513 }
1514
1515 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1516
1517 // Filesystem operations
1518 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1519 static int logfs_umount(cyg_mtab_entry *mte);
1520 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1521                 int mode, cyg_file *fte);
1522 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1523
1524 // File operations
1525 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1526 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1527
1528 #include <cyg/io/devtab.h>
1529
1530 //==========================================================================
1531 // Filesystem table entries
1532
1533 // -------------------------------------------------------------------------
1534 // Fstab entry.
1535 // This defines the entry in the filesystem table.
1536 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1537 // we should never block in any filesystem operations.
1538 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1539                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1540                 logfs_mount,
1541                 logfs_umount,
1542                 logfs_open,
1543                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1544                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1545                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1546                 (cyg_fsop_rename *)cyg_fileio_erofs,
1547                 (cyg_fsop_link *)cyg_fileio_erofs,
1548                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1549                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1550                 (cyg_fsop_stat *)cyg_fileio_erofs,
1551                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1552                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1553
1554 // -------------------------------------------------------------------------
1555 // File operations.
1556 // This set of file operations are used for normal open files.
1557
1558 static cyg_fileops logfs_fileops =
1559 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1560                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1561                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1562                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1563                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1564                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1565
1566 // -------------------------------------------------------------------------
1567 // logfs_mount()
1568 // Process a mount request. This mainly finds root for the
1569 // filesystem.
1570
1571 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1572 {
1573         return ENOERR;
1574 }
1575
1576 static int logfs_umount(cyg_mtab_entry *mte)
1577 {
1578         return ENOERR;
1579 }
1580
1581 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1582                 int mode, cyg_file *file)
1583 {
1584         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1585         file->f_type = CYG_FILE_TYPE_FILE;
1586         file->f_ops = &logfs_fileops;
1587         file->f_offset = 0;
1588         file->f_data = 0;
1589         file->f_xops = 0;
1590         return ENOERR;
1591 }
1592
1593 // -------------------------------------------------------------------------
1594 // logfs_fo_write()
1595 // Write data to file.
1596
1597 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1598 {
1599         int i;
1600         for (i = 0; i < uio->uio_iovcnt; i++)
1601         {
1602                 cyg_iovec *iov = &uio->uio_iov[i];
1603                 char *buf = (char *) iov->iov_base;
1604                 off_t len = iov->iov_len;
1605
1606                 diag_write(buf, len);
1607         }
1608         uio->uio_resid = 0;
1609
1610         return ENOERR;
1611 }
1612 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1613 {
1614         return ENOERR;
1615 }
1616
1617 // -------------------------------------------------------------------------
1618 // romfs_fo_close()
1619 // Close a file. We just clear out the data pointer.
1620
1621 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1622 {
1623         return ENOERR;
1624 }
1625
1626 int loadFile(const char *fileName, void **data, int *len);
1627
1628 /* boolean parameter stored on config */
1629 int boolParam(char *var)
1630 {
1631         bool result = false;
1632         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1633         if (name == NULL)
1634                 return result;
1635
1636         void *data;
1637         int len;
1638         if (loadFile(name, &data, &len) == ERROR_OK)
1639         {
1640                 if (len > 1)
1641                         len = 1;
1642                 result = strncmp((char *) data, "1", len) == 0;
1643                 free(data);
1644         }
1645         free(name);
1646         return result;
1647 }
1648