git.gag.com Git - fw/openocd/blob - src/ecosboard.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2008 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 "log.h"
  25 #include "types.h"
  26 #include "jtag.h"
  27 #include "configuration.h"
  28 #include "xsvf.h"
  29 #include "svf.h"
  30 #include "target.h"
  31 #include "flash.h"
  32 #include "nand.h"
  33 #include "pld.h"
  34
  35 #include "command.h"
  36 #include "server.h"
  37 #include "telnet_server.h"
  38 #include "gdb_server.h"
  39
  40 #include <time_support.h>
  41 #include <sys/time.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45 #include <unistd.h>
  46 #include <errno.h>
  47
  48 #include <cyg/io/flash.h>
  49 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  50 #include <network.h>
  51
  52 #include <fcntl.h>
  53 #include <sys/stat.h>
  54 #include <cyg/fileio/fileio.h>
  55 #include <dirent.h>
  56 #include <cyg/athttpd/http.h>
  57 #include <cyg/athttpd/socket.h>
  58 #include <cyg/athttpd/handler.h>
  59 #include <cyg/athttpd/cgi.h>
  60 #include <cyg/athttpd/forms.h>
  61 #include <cyg/discover/discover.h>
  62 #include <cyg/hal/hal_diag.h>
  63 #include <cyg/kernel/kapi.h>
  64 #include <cyg/io/serialio.h>
  65 #include <cyg/io/io.h>
  66 #include <netinet/tcp.h>
  67 #include "rom.h"
  68 #include <sys/ioctl.h>
  69 #include <sys/socket.h>
  70 #include <netinet/in.h>
  71 #include <net/if.h>
  72 #include <arpa/inet.h>
  73 #include <sys/types.h>
  74 #include <sys/socket.h>
  75 #include <netdb.h>
  76 #include <netinet/in.h>
  77 #include <unistd.h>
  78 #include <arpa/inet.h>
  79 #include <stdio.h>
  80 #include <ifaddrs.h>
  81 #include <string.h>
  82
  83 #include <unistd.h>
  84 #include <stdio.h>
  85
  86
  87 #define MAX_IFS 64
  88 #if defined(CYGPKG_NET_FREEBSD_STACK)
  89 #include <tftp_support.h>
  90 /* posix compatibility broken*/
  91 struct tftpd_fileops fileops =
  92 {
  93         (int (*)(const char *, int))open,
  94         close,
  95         (int (*)(int, const void *, int))write,
  96         (int (*)(int, void *, int))read
  97 };
  98
  99 #endif
 100
 101
 102 void diag_write(char *buf, int len)
 103 {
 104         int j;
 105         for (j = 0; j < len; j++)
 106         {
 107                 diag_printf("%c", buf[j]);
 108         }
 109 }
 110
 111 static bool serialLog = true;
 112 static bool writeLog = true;
 113
 114 char hwaddr[512];
 115
 116
 117 extern flash_driver_t *flash_drivers[];
 118 extern target_type_t *target_types[];
 119
 120 #ifdef CYGPKG_PROFILE_GPROF
 121 #include <cyg/profile/profile.h>
 122
 123 extern char _stext, _etext; // Defined by the linker
 124
 125 static char *start_of_code=&_stext;
 126 static char *end_of_code=&_etext;
 127
 128 void start_profile(void)
 129 {
 130         // This starts up the system-wide profiling, gathering
 131         // profile information on all of the code, with a 16 byte
 132         // "bucket" size, at a rate of 100us/profile hit.
 133         // Note: a bucket size of 16 will give pretty good function
 134         //       resolution.  Much smaller and the buffer becomes
 135         //       much too large for very little gain.
 136         // Note: a timer period of 100us is also a reasonable
 137         //       compromise.  Any smaller and the overhead of
 138         //       handling the timter (profile) interrupt could
 139         //       swamp the system.  A fast processor might get
 140         //       by with a smaller value, but a slow one could
 141         //       even be swamped by this value.  If the value is
 142         //       too large, the usefulness of the profile is reduced.
 143
 144         // no more interrupts than 1/10ms.
 145         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 146         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 147         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 148 }
 149 #endif
 150
 151 static FILE *log;
 152
 153 static char reboot_stack[2048];
 154
 155 static void zylinjtag_reboot(cyg_addrword_t data)
 156 {
 157         serialLog = true;
 158         diag_printf("Rebooting in 500 ticks..\n");
 159         cyg_thread_delay(500);
 160         diag_printf("Unmounting /config..\n");
 161         umount("/config");
 162         diag_printf("Rebooting..\n");
 163         HAL_PLATFORM_RESET();
 164 }
 165 static cyg_thread zylinjtag_thread_object;
 166 static cyg_handle_t zylinjtag_thread_handle;
 167
 168 void reboot(void)
 169 {
 170         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 171                         (void *) reboot_stack, sizeof(reboot_stack),
 172                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 173         cyg_thread_resume(zylinjtag_thread_handle);
 174 }
 175
 176 static char zylinjtag_reboot_port_stack[2048];
 177 static cyg_thread zylinjtag_reboot_port_thread_object;
 178 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 179
 180 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 181 {
 182         int so_reuseaddr_option = 1;
 183
 184         int fd;
 185         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 186         {
 187                 LOG_ERROR("error creating socket: %s", strerror(errno));
 188                 exit(-1);
 189         }
 190
 191         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 192                         sizeof(int));
 193
 194         struct sockaddr_in sin;
 195         unsigned int address_size;
 196         address_size = sizeof(sin);
 197         memset(&sin, 0, sizeof(sin));
 198         sin.sin_family = AF_INET;
 199         sin.sin_addr.s_addr = INADDR_ANY;
 200         sin.sin_port = htons(1234);
 201
 202         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 203         {
 204                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 205                 exit(-1);
 206         }
 207
 208         if (listen(fd, 1) == -1)
 209         {
 210                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 211                 exit(-1);
 212         }
 213         //      socket_nonblock(fd);
 214
 215
 216         accept(fd, (struct sockaddr *) &sin, &address_size);
 217
 218         diag_printf("Got reboot signal on port 1234");
 219
 220         reboot();
 221
 222 }
 223
 224 void reboot_port(void)
 225 {
 226         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 227                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 228                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 229         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 230 }
 231
 232 int configuration_output_handler(struct command_context_s *context,
 233                 const char* line)
 234 {
 235         diag_printf("%s", line);
 236
 237         return ERROR_OK;
 238 }
 239
 240 int zy1000_configuration_output_handler_log(struct command_context_s *context,
 241                 const char* line)
 242 {
 243         LOG_USER_N("%s", line);
 244
 245         return ERROR_OK;
 246 }
 247
 248 #ifdef CYGPKG_PROFILE_GPROF
 249
 250 int eCosBoard_handle_eCosBoard_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 251 {
 252         command_print(cmd_ctx, "Profiling started");
 253         start_profile();
 254         return ERROR_OK;
 255 }
 256
 257 #endif
 258
 259 externC void phi_init_all_network_interfaces(void);
 260
 261 command_context_t *cmd_ctx;
 262
 263 static bool webRunning = false;
 264
 265 void keep_webserver(void)
 266 {
 267         // Target initialisation is only attempted at startup, so we sleep forever and
 268         // let the http server bail us out(i.e. get config files set up).
 269         diag_printf("OpenOCD has invoked exit().\n"
 270                 "Use web server to correct any configuration settings and reboot.\n");
 271         if (!webRunning)
 272                 reboot();
 273
 274         // exit() will terminate the current thread and we we'll then sleep eternally or
 275         // we'll have a reboot scheduled.
 276 }
 277
 278 extern void printDccChar(char c);
 279
 280 static char logBuffer[128 * 1024];
 281 static const int logSize = sizeof(logBuffer);
 282 int writePtr = 0;
 283 int logCount = 0;
 284
 285 void _zylinjtag_diag_write_char(char c, void **param)
 286 {
 287         if (writeLog)
 288         {
 289                 logBuffer[writePtr] = c;
 290                 writePtr = (writePtr + 1) % logSize;
 291                 logCount++;
 292         }
 293         if (serialLog)
 294         {
 295                 if (c == '\n')
 296                 {
 297                         HAL_DIAG_WRITE_CHAR('\r');
 298                 }
 299                 HAL_DIAG_WRITE_CHAR(c);
 300         }
 301
 302 #ifdef CYGPKG_HAL_ZYLIN_PHI
 303         printDccChar(c);
 304 #endif
 305 }
 306
 307 void copyfile(char *name2, char *name1);
 308
 309 void copydir(char *name, char *destdir);
 310
 311 #if 0
 312 MTAB_ENTRY(romfs_mte1,
 313                 "/rom",
 314                 "romfs",
 315                 "",
 316                 (CYG_ADDRWORD) &filedata[0]);
 317 #endif
 318
 319 void openocd_sleep_prelude(void)
 320 {
 321         cyg_mutex_unlock(&httpstate.jim_lock);
 322 }
 323
 324 void openocd_sleep_postlude(void)
 325 {
 326         cyg_mutex_lock(&httpstate.jim_lock);
 327 }
 328
 329 void format(void)
 330 {
 331 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
 332         diag_printf("Formatting JFFS2...\n");
 333
 334         cyg_io_handle_t handle;
 335
 336         Cyg_ErrNo err;
 337         err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
 338         if (err != ENOERR)
 339         {
 340                 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
 341                 reboot();
 342         }
 343
 344         cyg_uint32 len;
 345         cyg_io_flash_getconfig_devsize_t ds;
 346         len = sizeof(ds);
 347         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
 348         if (err != ENOERR)
 349         {
 350                 diag_printf("Flash error cyg_io_get_config %d\n", err);
 351                 reboot();
 352         }
 353
 354         cyg_io_flash_getconfig_erase_t e;
 355         len = sizeof(e);
 356
 357         e.offset = 0;
 358         e.len = ds.dev_size;
 359
 360         diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
 361         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
 362         if (err != ENOERR)
 363         {
 364                 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
 365                 reboot();
 366         }
 367
 368         diag_printf("Flash formatted successfully\n");
 369 #endif
 370
 371         reboot();
 372 }
 373
 374 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
 375                 Jim_Obj * const *argv)
 376 {
 377         if (argc != 1)
 378         {
 379                 return JIM_ERR;
 380         }
 381
 382         format();
 383         for (;;)
 384                 ;
 385 }
 386
 387 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
 388                 Jim_Obj * const *argv)
 389 {
 390         cyg_handle_t thread = 0;
 391         cyg_uint16 id = 0;
 392         Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
 393
 394         /* Loop over the threads, and generate a table row for
 395          * each.
 396          */
 397         while (cyg_thread_get_next(&thread, &id))
 398         {
 399                 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
 400
 401                 cyg_thread_info info;
 402                 char *state_string;
 403
 404                 cyg_thread_get_info(thread, id, &info);
 405
 406                 if (info.name == NULL)
 407                         info.name = "<no name>";
 408
 409                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 410                                 info.name, strlen(info.name)));
 411
 412                 /* Translate the state into a string.
 413                  */
 414                 if (info.state == 0)
 415                         state_string = "RUN";
 416                 else if (info.state & 0x04)
 417                         state_string = "SUSP";
 418                 else
 419                         switch (info.state & 0x1b)
 420                         {
 421                         case 0x01:
 422                                 state_string = "SLEEP";
 423                                 break;
 424                         case 0x02:
 425                                 state_string = "CNTSLEEP";
 426                                 break;
 427                         case 0x08:
 428                                 state_string = "CREATE";
 429                                 break;
 430                         case 0x10:
 431                                 state_string = "EXIT";
 432                                 break;
 433                         default:
 434                                 state_string = "????";
 435                                 break;
 436                         }
 437
 438                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 439                                 state_string, strlen(state_string)));
 440
 441                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
 442                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 443                                 info.set_pri));
 444                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 445                                 info.cur_pri));
 446
 447                 Jim_ListAppendElement(interp, threads, threadObj);
 448         }
 449         Jim_SetResult(interp, threads);
 450
 451         return JIM_OK;
 452 }
 453
 454 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
 455                 Jim_Obj * const *argv)
 456 {
 457         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 458
 459         if (logCount >= logSize)
 460         {
 461                 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
 462                                 % logSize, logSize - logCount % logSize);
 463         }
 464         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
 465
 466         Jim_SetResult(interp, tclOutput);
 467         return JIM_OK;
 468 }
 469
 470 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
 471                 Jim_Obj * const *argv)
 472 {
 473         reboot();
 474         return JIM_OK;
 475 }
 476
 477
 478 static void zylinjtag_startNetwork(void)
 479 {
 480         // Bring TCP/IP up immediately before we're ready to accept commands.
 481         //
 482         // That is as soon as a PING responds, we're accepting telnet sessions.
 483 #if defined(CYGPKG_NET_FREEBSD_STACK)
 484         phi_init_all_network_interfaces();
 485 #else
 486         lwip_init();
 487 #endif
 488         if (!eth0_up)
 489         {
 490                 diag_printf("Network not up and running\n");
 491                 exit(-1);
 492         }
 493
 494         /* very first thing we want is a reboot capability */
 495         reboot_port();
 496
 497 #if defined(CYGPKG_NET_FREEBSD_STACK)
 498         /*start TFTP*/
 499         tftpd_start(69, &fileops);
 500 #endif
 501
 502         cyg_httpd_init_tcl_interpreter();
 503
 504         interp = httpstate.jim_interp;
 505
 506         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 507                         NULL, NULL);
 508         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 509                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 510         Jim_CreateCommand(httpstate.jim_interp, "threads",
 511                         zylinjtag_Jim_Command_threads, NULL, NULL);
 512         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 513                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 514
 515         cyg_httpd_start();
 516
 517         webRunning = true;
 518
 519         diag_printf("Web server running\n");
 520
 521         int s;
 522         struct ifreq ifr;
 523         s = socket(AF_INET, SOCK_DGRAM, 0);
 524         if (s >= 0)
 525         {
 526                 strcpy(ifr.ifr_name, "eth0");
 527                 int res;
 528                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 529                 close(s);
 530
 531                 if (res < 0)
 532                 {
 533                         diag_printf("Can't obtain MAC address\n");
 534                         reboot();
 535                 }
 536         }
 537
 538         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 539                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 540                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 541                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 542                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 543                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 544                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 545
 546         discover_message
 547                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 548
 549         discover_launch();
 550 }
 551
 552 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 553                 cyg_addrword_t info)
 554 {
 555         writeLog = false;
 556         serialLog = true;
 557         char *infoStr = "unknown";
 558         switch (exception)
 559         {
 560 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 561         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 562         infoStr = "undefined instruction";
 563         break;
 564         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 565         infoStr = "software interrupt";
 566         break;
 567         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 568         infoStr = "abort prefetch";
 569         break;
 570         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 571         infoStr = "abort data";
 572         break;
 573 #endif
 574         default:
 575                 break;
 576         }
 577
 578         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 579
 580         diag_printf("Dumping log\n---\n");
 581         if (logCount >= logSize)
 582         {
 583                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 584         }
 585         diag_write(logBuffer, writePtr);
 586
 587         diag_printf("---\nLogdump complete.\n");
 588         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 589         diag_printf("\n---\nRebooting\n");
 590         HAL_PLATFORM_RESET();
 591
 592 }
 593
 594 static void setHandler(cyg_code_t exception)
 595 {
 596         cyg_exception_handler_t *old_handler;
 597         cyg_addrword_t old_data;
 598
 599         cyg_exception_set_handler(exception, print_exception_handler, 0,
 600                         &old_handler, &old_data);
 601 }
 602
 603 static cyg_thread zylinjtag_uart_thread_object;
 604 static cyg_handle_t zylinjtag_uart_thread_handle;
 605 static char uart_stack[4096];
 606
 607 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 608 static char backwardBuffer[1024];
 609
 610 void setNoDelay(int session, int flag)
 611 {
 612 #if 1
 613         // This decreases latency dramatically for e.g. GDB load which
 614         // does not have a sliding window protocol
 615         //
 616         // Can cause *lots* of TCP/IP packets to be sent and it would have
 617         // to be enabled/disabled on the fly to avoid the CPU being
 618         // overloaded...
 619         setsockopt(session, /* socket affected */
 620         IPPROTO_TCP, /* set option at TCP level */
 621         TCP_NODELAY, /* name of option */
 622         (char *) &flag, /* the cast is historical
 623          cruft */
 624         sizeof(int)); /* length of option value */
 625 #endif
 626 }
 627
 628 struct
 629 {
 630         int req;
 631         int actual;
 632         int req2;
 633         int actual2;
 634 } tcpipSent[512 * 1024];
 635 int cur;
 636
 637 static void zylinjtag_uart(cyg_addrword_t data)
 638 {
 639         int so_reuseaddr_option = 1;
 640
 641         int fd;
 642         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 643         {
 644                 LOG_ERROR("error creating socket: %s", strerror(errno));
 645                 exit(-1);
 646         }
 647
 648         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 649                         sizeof(int));
 650
 651         struct sockaddr_in sin;
 652         unsigned int address_size;
 653         address_size = sizeof(sin);
 654         memset(&sin, 0, sizeof(sin));
 655         sin.sin_family = AF_INET;
 656         sin.sin_addr.s_addr = INADDR_ANY;
 657         sin.sin_port = htons(5555);
 658
 659         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 660         {
 661                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 662                 exit(-1);
 663         }
 664
 665         if (listen(fd, 1) == -1)
 666         {
 667                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 668                 exit(-1);
 669         }
 670         //      socket_nonblock(fd);
 671
 672
 673         for (;;)
 674         {
 675                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 676                 if (session < 0)
 677                 {
 678                         continue;
 679                 }
 680
 681                 setNoDelay(session, 1);
 682                 int oldopts = fcntl(session, F_GETFL, 0);
 683                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 684
 685                 int serHandle = open("/dev/ser0", O_RDWR | O_NONBLOCK);
 686                 if (serHandle < 0)
 687                 {
 688                         close(session);
 689                         continue;
 690                 }
 691
 692 #ifdef CYGPKG_PROFILE_GPROF
 693                 start_profile();
 694 #endif
 695                 size_t actual = 0;
 696                 size_t actual2 = 0;
 697                 size_t pos, pos2;
 698                 pos = 0;
 699                 pos2 = 0;
 700                 cur = 0;
 701                 for (;;)
 702                 {
 703                         fd_set write_fds;
 704                         fd_set read_fds;
 705                         FD_ZERO(&write_fds);
 706                         FD_ZERO(&read_fds);
 707                         int fd_max = -1;
 708                         FD_SET(session, &read_fds);
 709                         fd_max = session;
 710                         FD_SET(serHandle, &read_fds);
 711                         if (serHandle > fd_max)
 712                         {
 713                                 fd_max = serHandle;
 714                         }
 715                         /* Wait... */
 716
 717                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 718                         if ((actual == 0) && (actual2 == 0))
 719                         {
 720                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 721                                 if (retval <= 0)
 722                                 {
 723                                         break;
 724                                 }
 725                         }
 726
 727                         if (actual2 <= 0)
 728                         {
 729                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 730                                 int t;
 731                                 t = read(serHandle, backwardBuffer,
 732                                                 sizeof(backwardBuffer));
 733                                 actual2 = t;
 734                                 if (t < 0)
 735                                 {
 736                                         if (errno != EAGAIN)
 737                                         {
 738                                                 goto closeSession;
 739                                         }
 740                                         actual2 = 0;
 741                                 }
 742                                 pos2 = 0;
 743                         }
 744
 745                         size_t x = actual2;
 746                         size_t y = 0;
 747                         if (actual2 > 0)
 748                         {
 749                                 int written = write(session, backwardBuffer + pos2, actual2);
 750                                 if (written <= 0)
 751                                         goto closeSession;
 752                                 actual2 -= written;
 753                                 pos2 += written;
 754                                 y = written;
 755                         }
 756
 757                         if (FD_ISSET(session, &read_fds)
 758                                         && (sizeof(forwardBuffer) > actual))
 759                         {
 760                                 // NB! Here it is important that we empty the TCP/IP read buffer
 761                                 // to make transmission tick right
 762                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 763                                 pos = 0;
 764                                 int t;
 765                                 // this will block if there is no data at all
 766                                 t = read_socket(session, forwardBuffer + actual,
 767                                                 sizeof(forwardBuffer) - actual);
 768                                 if (t <= 0)
 769                                 {
 770                                         goto closeSession;
 771                                 }
 772                                 actual += t;
 773                         }
 774
 775                         int x2 = actual;
 776                         int y2 = 0;
 777                         if (actual > 0)
 778                         {
 779                                 /* Do not put things into the serial buffer if it has something to send
 780                                  * as that can cause a single byte to be sent at the time.
 781                                  *
 782                                  *
 783                                  */
 784                                 int written = write(serHandle, forwardBuffer + pos, actual);
 785                                 if (written < 0)
 786                                 {
 787                                         if (errno != EAGAIN)
 788                                         {
 789                                                 goto closeSession;
 790                                         }
 791                                         // The serial buffer is full
 792                                         written = 0;
 793                                 }
 794                                 else
 795                                 {
 796                                         actual -= written;
 797                                         pos += written;
 798                                 }
 799                                 y2 = written;
 800                         }
 801                         if (cur < 1024)
 802                         {
 803                                 tcpipSent[cur].req = x;
 804                                 tcpipSent[cur].actual = y;
 805                                 tcpipSent[cur].req2 = x2;
 806                                 tcpipSent[cur].actual2 = y2;
 807                                 cur++;
 808                         }
 809
 810                 }
 811                 closeSession: close(session);
 812                 close(serHandle);
 813
 814                 int i;
 815                 for (i = 0; i < 1024; i++)
 816                 {
 817                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 818                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 819
 820                 }
 821         }
 822         close(fd);
 823
 824 }
 825
 826 void startUart(void)
 827 {
 828         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 829                         (void *) uart_stack, sizeof(uart_stack),
 830                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 831         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 832         cyg_thread_resume(zylinjtag_uart_thread_handle);
 833 }
 834
 835 int handle_uart_command(struct command_context_s *cmd_ctx, char *cmd,
 836                 char **args, int argc)
 837 {
 838         static int current_baud = 38400;
 839         if (argc == 0)
 840         {
 841                 command_print(cmd_ctx, "%d", current_baud);
 842                 return ERROR_OK;
 843         }
 844         else if (argc != 1)
 845         {
 846                 return ERROR_INVALID_ARGUMENTS;
 847         }
 848
 849         current_baud = atol(args[0]);
 850
 851         int baud;
 852         switch (current_baud)
 853         {
 854         case 9600:
 855                 baud = CYGNUM_SERIAL_BAUD_9600;
 856                 break;
 857         case 19200:
 858                 baud = CYGNUM_SERIAL_BAUD_19200;
 859                 break;
 860         case 38400:
 861                 baud = CYGNUM_SERIAL_BAUD_38400;
 862                 break;
 863         case 57600:
 864                 baud = CYGNUM_SERIAL_BAUD_57600;
 865                 break;
 866         case 115200:
 867                 baud = CYGNUM_SERIAL_BAUD_115200;
 868                 break;
 869         case 230400:
 870                 baud = CYGNUM_SERIAL_BAUD_230400;
 871                 break;
 872         default:
 873                 command_print(cmd_ctx, "unsupported baudrate");
 874                 return ERROR_INVALID_ARGUMENTS;
 875         }
 876
 877         cyg_serial_info_t buf;
 878         cyg_uint32 len = 1;
 879         //get existing serial configuration
 880         len = sizeof(cyg_serial_info_t);
 881         int err;
 882         cyg_io_handle_t serial_handle;
 883
 884         err = cyg_io_lookup("/dev/ser0", &serial_handle);
 885         if (err != ENOERR)
 886         {
 887                 LOG_ERROR("/dev/ser0 not found\n");
 888                 return ERROR_FAIL;
 889         }
 890
 891         err = cyg_io_get_config(serial_handle,
 892                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 893         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 894                         &len);
 895         if (err != ENOERR)
 896         {
 897                 command_print(cmd_ctx, "Failed to get serial port settings %d", err);
 898                 return ERROR_OK;
 899         }
 900         buf.baud = baud;
 901
 902         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 903                         &len);
 904         if (err != ENOERR)
 905         {
 906                 command_print(cmd_ctx, "Failed to set serial port settings %d", err);
 907                 return ERROR_OK;
 908         }
 909
 910         return ERROR_OK;
 911 }
 912
 913 bool logAllToSerial = false;
 914
 915
 916 int boolParam(char *var);
 917
 918
 919 command_context_t *setup_command_handler(void);
 920
 921 static const char *zylin_config_dir="/config/settings";
 922
 923 static int add_default_dirs(void)
 924 {
 925         add_script_search_dir(zylin_config_dir);
 926         add_script_search_dir("/rom/lib/openocd");
 927         add_script_search_dir("/rom");
 928         return ERROR_OK;
 929 }
 930
 931 int ioutil_init(struct command_context_s *cmd_ctx);
 932
 933 int main(int argc, char *argv[])
 934 {
 935         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 936          * need to allocate towards the end of the heap.  */
 937
 938 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 939         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 940         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 941         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 942 #endif
 943
 944         int err;
 945
 946         atexit(keep_webserver);
 947
 948         diag_init_putc(_zylinjtag_diag_write_char);
 949         // We want this in the log.
 950         diag_printf("Zylin ZY1000.\n");
 951
 952         err = mount("", "/ram", "ramfs");
 953         if (err < 0)
 954         {
 955                 diag_printf("unable to mount ramfs\n");
 956         }
 957         chdir("/ram");
 958
 959         char address[16];
 960         sprintf(address, "%p", &filedata[0]);
 961         err = mount(address, "/rom", "romfs");
 962         if (err < 0)
 963         {
 964                 diag_printf("unable to mount /rom\n");
 965         }
 966
 967         err = mount("", "/log", "logfs");
 968         if (err < 0)
 969         {
 970                 diag_printf("unable to mount logfs\n");
 971         }
 972
 973         err = mount("", "/tftp", "tftpfs");
 974         if (err < 0)
 975         {
 976                 diag_printf("unable to mount logfs\n");
 977         }
 978
 979         log = fopen("/log/log", "w");
 980         if (log == NULL)
 981         {
 982                 diag_printf("Could not open log file /ram/log\n");
 983                 exit(-1);
 984         }
 985
 986
 987         copydir("/rom", "/ram/cgi");
 988
 989         err = mount("/dev/flash1", "/config", "jffs2");
 990         if (err < 0)
 991         {
 992                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
 993                 err = mount("", "/config", "ramfs");
 994                 if (err < 0)
 995                 {
 996                         diag_printf("unable to mount /config as ramdisk.\n");
 997                         reboot();
 998                 }
 999         }
1000         else
1001         {
1002                 /* are we using a ram disk instead of a flash disk? This is used
1003                  * for ZY1000 live demo...
1004                  *
1005                  * copy over flash disk to ram block device
1006                  */
1007                 if (boolParam("ramdisk"))
1008                 {
1009                         diag_printf("Unmounting /config from flash and using ram instead\n");
1010                         err = umount("/config");
1011                         if (err < 0)
1012                         {
1013                                 diag_printf("unable to unmount jffs\n");
1014                                 reboot();
1015                         }
1016
1017                         err = mount("/dev/flash1", "/config2", "jffs2");
1018                         if (err < 0)
1019                         {
1020                                 diag_printf("unable to mount jffs\n");
1021                                 reboot();
1022                         }
1023
1024                         err = mount("", "/config", "ramfs");
1025                         if (err < 0)
1026                         {
1027                                 diag_printf("unable to mount ram block device\n");
1028                                 reboot();
1029                         }
1030
1031                         //              copydir("/config2", "/config");
1032                         copyfile("/config2/ip", "/config/ip");
1033                         copydir("/config2/settings", "/config/settings");
1034
1035                         umount("/config2");
1036                 }
1037         }
1038
1039         mkdir(zylin_config_dir, 0777);
1040         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1041         mkdir(dirname, 0777);
1042         free(dirname);
1043         dirname = alloc_printf("%s/board", zylin_config_dir);
1044         mkdir(dirname, 0777);
1045         free(dirname);
1046         dirname = alloc_printf("%s/event", zylin_config_dir);
1047         mkdir(dirname, 0777);
1048         free(dirname);
1049
1050         logAllToSerial = boolParam("logserial");
1051
1052         // We need the network & web server in case there is something wrong with
1053         // the config files that invoke exit()
1054         zylinjtag_startNetwork();
1055
1056         /* we're going to access the jim interpreter from here on... */
1057         openocd_sleep_postlude();
1058         startUart();
1059
1060         add_default_dirs();
1061
1062         /* initialize commandline interface */
1063         command_context_t * cmd_ctx;
1064         cmd_ctx = setup_command_handler();
1065         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1066         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1067
1068 #if BUILD_IOUTIL
1069         if (ioutil_init(cmd_ctx) != ERROR_OK)
1070         {
1071                 return EXIT_FAILURE;
1072         }
1073 #endif
1074
1075
1076 #ifdef CYGPKG_PROFILE_GPROF
1077         register_command(cmd_ctx, NULL, "ecosboard_profile", eCosBoard_handle_eCosBoard_profile_command,
1078                         COMMAND_ANY, NULL);
1079 #endif
1080
1081         register_command(cmd_ctx, NULL, "uart", handle_uart_command, COMMAND_ANY,
1082                         "uart <baud>  - forward uart on port 5555");
1083
1084         int errVal;
1085         errVal = log_init(cmd_ctx);
1086         if (errVal != ERROR_OK)
1087         {
1088                 diag_printf("log_init() failed %d\n", errVal);
1089                 exit(-1);
1090         }
1091
1092         set_log_output(cmd_ctx, log);
1093
1094         LOG_DEBUG("log init complete");
1095
1096         //      diag_printf("Executing config files\n");
1097
1098         if (logAllToSerial)
1099         {
1100                 diag_printf(
1101                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1102                 command_run_line(cmd_ctx, "debug_level 3");
1103         }
1104
1105         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1106
1107         /* we MUST always run the init command as it will launch telnet sessions */
1108         command_run_line(cmd_ctx, "init");
1109
1110         // FIX!!!  Yuk!
1111         // diag_printf() is really invoked from many more places than we trust it
1112         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1113         //
1114         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1115         // fingers that it doesn't cause any crashes.
1116         diag_printf("Init complete, GDB & telnet servers launched.\n");
1117         command_set_output_handler(cmd_ctx,
1118                         zy1000_configuration_output_handler_log, NULL);
1119         if (!logAllToSerial)
1120         {
1121                 serialLog = false;
1122         }
1123
1124         /* handle network connections */
1125         server_loop(cmd_ctx);
1126         openocd_sleep_prelude();
1127
1128         /* shut server down */
1129         server_quit();
1130
1131         /* free commandline interface */
1132         command_done(cmd_ctx);
1133         umount("/config");
1134
1135         exit(0);
1136         for (;;)
1137                 ;
1138 }
1139
1140 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1141 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1142 {
1143         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1144         return 0;
1145 }
1146
1147 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1148
1149 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1150 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1151
1152 #include <pkgconf/system.h>
1153 #include <pkgconf/hal.h>
1154 #include <pkgconf/kernel.h>
1155 #include <pkgconf/io_fileio.h>
1156 #include <pkgconf/fs_rom.h>
1157
1158 #include <cyg/kernel/ktypes.h>         // base kernel types
1159 #include <cyg/infra/cyg_trac.h>        // tracing macros
1160 #include <cyg/infra/cyg_ass.h>         // assertion macros
1161 #include <cyg/fileio/fileio.h>
1162 #include <cyg/kernel/kapi.h>
1163 #include <cyg/infra/diag.h>
1164
1165 //==========================================================================
1166 // Eventually we want to eXecute In Place from the ROM in a protected
1167 // environment, so we'll need executables to be aligned to a boundary
1168 // suitable for MMU protection. A suitable boundary would be the 4k
1169 // boundary in all the CPU architectures I am currently aware of.
1170
1171 // Forward definitions
1172
1173 // Filesystem operations
1174 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1175 static int tftpfs_umount(cyg_mtab_entry *mte);
1176 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1177                 int mode, cyg_file *fte);
1178 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1179 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1180
1181 // File operations
1182 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1183 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1184 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1185
1186 //==========================================================================
1187 // Filesystem table entries
1188
1189 // -------------------------------------------------------------------------
1190 // Fstab entry.
1191 // This defines the entry in the filesystem table.
1192 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1193 // we should never block in any filesystem operations.
1194 #if 1
1195 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1196                 CYG_SYNCMODE_NONE,
1197                 tftpfs_mount,
1198                 tftpfs_umount,
1199                 tftpfs_open,
1200                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1201                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1202                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1203                 (cyg_fsop_rename *)cyg_fileio_erofs,
1204                 (cyg_fsop_link *)cyg_fileio_erofs,
1205                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1206                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1207                 (cyg_fsop_stat *)cyg_fileio_erofs,
1208                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1209                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1210 #endif
1211
1212 // -------------------------------------------------------------------------
1213 // mtab entry.
1214 // This defines a single ROMFS loaded into ROM at the configured address
1215 //
1216 // MTAB_ENTRY(rom_mte,  // structure name
1217 //              "/rom",         // mount point
1218 //              "romfs",        // FIlesystem type
1219 //              "",             // hardware device
1220 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1221 //);
1222
1223
1224 // -------------------------------------------------------------------------
1225 // File operations.
1226 // This set of file operations are used for normal open files.
1227
1228 static cyg_fileops tftpfs_fileops =
1229 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1230                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1231                 tftpfs_fo_fsync, tftpfs_fo_close,
1232                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1233                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1234                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1235
1236 // -------------------------------------------------------------------------
1237 // tftpfs_mount()
1238 // Process a mount request. This mainly finds root for the
1239 // filesystem.
1240
1241 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1242 {
1243         return ENOERR;
1244 }
1245
1246 static int tftpfs_umount(cyg_mtab_entry *mte)
1247 {
1248         return ENOERR;
1249 }
1250
1251 struct Tftp
1252 {
1253         int write;
1254         int readFile;
1255         cyg_uint8 *mem;
1256         int actual;
1257         char *server;
1258         char *file;
1259 };
1260
1261 static void freeTftp(struct Tftp *t)
1262 {
1263         if (t == NULL)
1264                 return;
1265         if (t->mem)
1266                 free(t->mem);
1267         if (t->server)
1268                 free(t->server);
1269         if (t->file)
1270                 free(t->file);
1271         free(t);
1272 }
1273
1274 static const int tftpMaxSize = 8192 * 1024;
1275 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1276                 int mode, cyg_file *file)
1277 {
1278         struct Tftp *tftp;
1279         tftp = malloc(sizeof(struct Tftp));
1280         if (tftp == NULL)
1281                 return EMFILE;
1282         memset(tftp, 0, sizeof(struct Tftp));
1283
1284         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1285         file->f_type = CYG_FILE_TYPE_FILE;
1286         file->f_ops = &tftpfs_fileops;
1287         file->f_offset = 0;
1288         file->f_data = 0;
1289         file->f_xops = 0;
1290
1291         tftp->mem = malloc(tftpMaxSize);
1292         if (tftp->mem == NULL)
1293         {
1294                 freeTftp(tftp);
1295                 return EMFILE;
1296         }
1297
1298         char *server = strchr(name, '/');
1299         if (server == NULL)
1300         {
1301                 freeTftp(tftp);
1302                 return EMFILE;
1303         }
1304
1305         tftp->server = malloc(server - name + 1);
1306         if (tftp->server == NULL)
1307         {
1308                 freeTftp(tftp);
1309                 return EMFILE;
1310         }
1311         strncpy(tftp->server, name, server - name);
1312         tftp->server[server - name] = 0;
1313
1314         tftp->file = strdup(server + 1);
1315         if (tftp->file == NULL)
1316         {
1317                 freeTftp(tftp);
1318                 return EMFILE;
1319         }
1320
1321         file->f_data = (CYG_ADDRWORD) tftp;
1322
1323         return ENOERR;
1324 }
1325
1326 static int fetchTftp(struct Tftp *tftp)
1327 {
1328         if (!tftp->readFile)
1329         {
1330                 int err;
1331                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1332                                 tftpMaxSize, TFTP_OCTET, &err);
1333
1334                 if (tftp->actual < 0)
1335                 {
1336                         return EMFILE;
1337                 }
1338                 tftp->readFile = 1;
1339         }
1340         return ENOERR;
1341 }
1342
1343 // -------------------------------------------------------------------------
1344 // tftpfs_fo_write()
1345 // Read data from file.
1346
1347 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1348 {
1349         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1350
1351         if (fetchTftp(tftp) != ENOERR)
1352                 return EMFILE;
1353
1354         int i;
1355         off_t pos = fp->f_offset;
1356         int resid = 0;
1357         for (i = 0; i < uio->uio_iovcnt; i++)
1358         {
1359                 cyg_iovec *iov = &uio->uio_iov[i];
1360                 char *buf = (char *) iov->iov_base;
1361                 off_t len = iov->iov_len;
1362
1363                 if (len + pos > tftp->actual)
1364                 {
1365                         len = tftp->actual - pos;
1366                 }
1367                 resid += iov->iov_len - len;
1368
1369                 memcpy(buf, tftp->mem + pos, len);
1370                 pos += len;
1371
1372         }
1373         uio->uio_resid = resid;
1374         fp->f_offset = pos;
1375
1376         return ENOERR;
1377 }
1378
1379 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1380 {
1381         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1382
1383         int i;
1384         off_t pos = fp->f_offset;
1385         int resid = 0;
1386         for (i = 0; i < uio->uio_iovcnt; i++)
1387         {
1388                 cyg_iovec *iov = &uio->uio_iov[i];
1389                 char *buf = (char *) iov->iov_base;
1390                 off_t len = iov->iov_len;
1391
1392                 if (len + pos > tftpMaxSize)
1393                 {
1394                         len = tftpMaxSize - pos;
1395                 }
1396                 resid += iov->iov_len - len;
1397
1398                 memcpy(tftp->mem + pos, buf, len);
1399                 pos += len;
1400
1401         }
1402         uio->uio_resid = resid;
1403         fp->f_offset = pos;
1404
1405         tftp->write = 1;
1406
1407         return ENOERR;
1408 }
1409
1410 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1411 {
1412         int error = ENOERR;
1413         return error;
1414 }
1415
1416 // -------------------------------------------------------------------------
1417 // romfs_fo_close()
1418 // Close a file. We just clear out the data pointer.
1419
1420 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1421 {
1422         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1423         int error = ENOERR;
1424
1425         if (tftp->write)
1426         {
1427                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1428                                 TFTP_OCTET, &error);
1429         }
1430
1431         freeTftp(tftp);
1432         fp->f_data = 0;
1433         return error;
1434 }
1435
1436 // -------------------------------------------------------------------------
1437 // romfs_fo_lseek()
1438 // Seek to a new file position.
1439
1440 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1441 {
1442         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1443         off_t pos = *apos;
1444
1445         if (fetchTftp(tftp) != ENOERR)
1446                 return EMFILE;
1447
1448         switch (whence)
1449         {
1450         case SEEK_SET:
1451                 // Pos is already where we want to be.
1452                 break;
1453
1454         case SEEK_CUR:
1455                 // Add pos to current offset.
1456                 pos += fp->f_offset;
1457                 break;
1458
1459         case SEEK_END:
1460                 // Add pos to file size.
1461                 pos += tftp->actual;
1462                 break;
1463
1464         default:
1465                 return EINVAL;
1466         }
1467
1468         // Check that pos is still within current file size, or at the
1469         // very end.
1470         if (pos < 0 || pos > tftp->actual)
1471                 return EINVAL;
1472
1473         // All OK, set fp offset and return new position.
1474         *apos = fp->f_offset = pos;
1475
1476         return ENOERR;
1477 }
1478
1479 void usleep(int us)
1480 {
1481         if (us > 10000)
1482                 cyg_thread_delay(us / 10000 + 1);
1483         else
1484                 HAL_DELAY_US(us);
1485 }
1486
1487 // Chunked version.
1488 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1489 {
1490         cyg_httpd_start_chunked("text");
1491         if (logCount >= logSize)
1492         {
1493                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1494                                 - logCount % logSize);
1495         }
1496         cyg_httpd_write_chunked(logBuffer, writePtr);
1497         cyg_httpd_end_chunked();
1498         return -1;
1499 }
1500
1501 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1502
1503 // Filesystem operations
1504 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1505 static int logfs_umount(cyg_mtab_entry *mte);
1506 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1507                 int mode, cyg_file *fte);
1508 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1509
1510 // File operations
1511 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1512 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1513
1514 #include <cyg/io/devtab.h>
1515
1516 //==========================================================================
1517 // Filesystem table entries
1518
1519 // -------------------------------------------------------------------------
1520 // Fstab entry.
1521 // This defines the entry in the filesystem table.
1522 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1523 // we should never block in any filesystem operations.
1524 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1525                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1526                 logfs_mount,
1527                 logfs_umount,
1528                 logfs_open,
1529                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1530                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1531                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1532                 (cyg_fsop_rename *)cyg_fileio_erofs,
1533                 (cyg_fsop_link *)cyg_fileio_erofs,
1534                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1535                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1536                 (cyg_fsop_stat *)cyg_fileio_erofs,
1537                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1538                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1539
1540 // -------------------------------------------------------------------------
1541 // File operations.
1542 // This set of file operations are used for normal open files.
1543
1544 static cyg_fileops logfs_fileops =
1545 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1546                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1547                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1548                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1549                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1550                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1551
1552 // -------------------------------------------------------------------------
1553 // logfs_mount()
1554 // Process a mount request. This mainly finds root for the
1555 // filesystem.
1556
1557 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1558 {
1559         return ENOERR;
1560 }
1561
1562 static int logfs_umount(cyg_mtab_entry *mte)
1563 {
1564         return ENOERR;
1565 }
1566
1567 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1568                 int mode, cyg_file *file)
1569 {
1570         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1571         file->f_type = CYG_FILE_TYPE_FILE;
1572         file->f_ops = &logfs_fileops;
1573         file->f_offset = 0;
1574         file->f_data = 0;
1575         file->f_xops = 0;
1576         return ENOERR;
1577 }
1578
1579 // -------------------------------------------------------------------------
1580 // logfs_fo_write()
1581 // Write data to file.
1582
1583 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1584 {
1585         int i;
1586         for (i = 0; i < uio->uio_iovcnt; i++)
1587         {
1588                 cyg_iovec *iov = &uio->uio_iov[i];
1589                 char *buf = (char *) iov->iov_base;
1590                 off_t len = iov->iov_len;
1591
1592                 diag_write(buf, len);
1593         }
1594         uio->uio_resid = 0;
1595
1596         return ENOERR;
1597 }
1598 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1599 {
1600         return ENOERR;
1601 }
1602
1603 // -------------------------------------------------------------------------
1604 // romfs_fo_close()
1605 // Close a file. We just clear out the data pointer.
1606
1607 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1608 {
1609         return ENOERR;
1610 }
1611
1612 int loadFile(const char *fileName, void **data, int *len);
1613
1614 /* boolean parameter stored on config */
1615 int boolParam(char *var)
1616 {
1617         bool result = false;
1618         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1619         if (name == NULL)
1620                 return result;
1621
1622         void *data;
1623         int len;
1624         if (loadFile(name, &data, &len) == ERROR_OK)
1625         {
1626                 if (len > 1)
1627                         len = 1;
1628                 result = strncmp((char *) data, "1", len) == 0;
1629                 free(data);
1630         }
1631         free(name);
1632         return result;
1633 }
1634