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