git.sur5r.net Git - openocd/blob - src/ecosboard.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2010 by Øyvind Harboe                              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include <helper/types.h>
  25 #include <jtag/jtag.h>
  26 #include <helper/ioutil.h>
  27 #include <helper/util.h>
  28 #include <helper/configuration.h>
  29
  30 #include <server/server.h>
  31 #include <server/telnet_server.h>
  32 #include <server/gdb_server.h>
  33 #include <openocd.h>
  34
  35 #include <helper/time_support.h>
  36
  37 #include <sys/time.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <unistd.h>
  42 #include <errno.h>
  43
  44 #include <cyg/io/flash.h>
  45 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  46 #include <network.h>
  47
  48 #include <fcntl.h>
  49 #include <sys/stat.h>
  50 #include <cyg/fileio/fileio.h>
  51 #include <dirent.h>
  52 #include <cyg/athttpd/http.h>
  53 #include <cyg/athttpd/socket.h>
  54 #include <cyg/athttpd/handler.h>
  55 #include <cyg/athttpd/cgi.h>
  56 #include <cyg/athttpd/forms.h>
  57 #include <cyg/discover/discover.h>
  58 #include <cyg/io/io.h>
  59 #include <cyg/io/serialio.h>
  60 #include <netinet/tcp.h>
  61 #include <cyg/hal/hal_diag.h>
  62
  63 #include "rom.h"
  64
  65 #ifdef CYGPKG_HAL_NIOS2
  66 #include <cyg/hal/io.h>
  67 #define ZY1000_SER_DEV "/dev/uart_0"
  68 #else
  69 #define ZY1000_SER_DEV "/dev/ser0"
  70
  71 #endif
  72
  73
  74 #define MAX_IFS 64
  75 #if defined(CYGPKG_NET_FREEBSD_STACK)
  76 #include <tftp_support.h>
  77 /* posix compatibility broken*/
  78 struct tftpd_fileops fileops =
  79 {
  80         (int (*)(const char *, int))open,
  81         close,
  82         (int (*)(int, const void *, int))write,
  83         (int (*)(int, void *, int))read
  84 };
  85
  86 #endif
  87
  88
  89 void diag_write(char *buf, int len)
  90 {
  91         int j;
  92         for (j = 0; j < len; j++)
  93         {
  94                 diag_printf("%c", buf[j]);
  95         }
  96 }
  97
  98 static bool serialLog = true;
  99 static bool writeLog = true;
 100
 101 char hwaddr[512];
 102
 103 #ifdef CYGPKG_PROFILE_GPROF
 104 #include <cyg/profile/profile.h>
 105
 106 extern char _stext, _etext; // Defined by the linker
 107
 108 static char *start_of_code=&_stext;
 109 static char *end_of_code=&_etext;
 110
 111 void start_profile(void)
 112 {
 113         // This starts up the system-wide profiling, gathering
 114         // profile information on all of the code, with a 16 byte
 115         // "bucket" size, at a rate of 100us/profile hit.
 116         // Note: a bucket size of 16 will give pretty good function
 117         //       resolution.  Much smaller and the buffer becomes
 118         //       much too large for very little gain.
 119         // Note: a timer period of 100us is also a reasonable
 120         //       compromise.  Any smaller and the overhead of
 121         //       handling the timter (profile) interrupt could
 122         //       swamp the system.  A fast processor might get
 123         //       by with a smaller value, but a slow one could
 124         //       even be swamped by this value.  If the value is
 125         //       too large, the usefulness of the profile is reduced.
 126
 127         // no more interrupts than 1/10ms.
 128         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 129         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 130         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 131 }
 132 #endif
 133
 134 static FILE *log;
 135
 136 static char reboot_stack[2048];
 137
 138 static void zylinjtag_reboot(cyg_addrword_t data)
 139 {
 140         serialLog = true;
 141         diag_printf("Rebooting in 500 ticks..\n");
 142         cyg_thread_delay(500);
 143         diag_printf("Unmounting /config..\n");
 144         umount("/config");
 145         diag_printf("Rebooting..\n");
 146 #ifdef CYGPKG_HAL_NIOS2
 147         /* This will reboot & reconfigure the FPGA from the bootloader
 148          * and on.
 149          */
 150         IOWR(REMOTE_UPDATE_BASE, 0x20, 0x1);
 151 #else
 152         HAL_PLATFORM_RESET();
 153 #endif
 154 }
 155 static cyg_thread zylinjtag_thread_object;
 156 static cyg_handle_t zylinjtag_thread_handle;
 157
 158 void reboot(void)
 159 {
 160         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 161                         (void *) reboot_stack, sizeof(reboot_stack),
 162                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 163         cyg_thread_resume(zylinjtag_thread_handle);
 164 }
 165
 166 static char zylinjtag_reboot_port_stack[2048];
 167 static cyg_thread zylinjtag_reboot_port_thread_object;
 168 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 169
 170 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 171 {
 172         int so_reuseaddr_option = 1;
 173
 174         int fd;
 175         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 176         {
 177                 LOG_ERROR("error creating socket: %s", strerror(errno));
 178                 exit(-1);
 179         }
 180
 181         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 182                         sizeof(int));
 183
 184         struct sockaddr_in sin;
 185         unsigned int address_size;
 186         address_size = sizeof(sin);
 187         memset(&sin, 0, sizeof(sin));
 188         sin.sin_family = AF_INET;
 189         sin.sin_addr.s_addr = INADDR_ANY;
 190         sin.sin_port = htons(1234);
 191
 192         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 193         {
 194                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 195                 exit(-1);
 196         }
 197
 198         if (listen(fd, 1) == -1)
 199         {
 200                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 201                 exit(-1);
 202         }
 203         //      socket_nonblock(fd);
 204
 205
 206         accept(fd, (struct sockaddr *) &sin, &address_size);
 207
 208         diag_printf("Got reboot signal on port 1234");
 209
 210         reboot();
 211
 212 }
 213
 214 void reboot_port(void)
 215 {
 216         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 217                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 218                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 219         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 220 }
 221
 222 int configuration_output_handler(struct command_context *context,
 223                 const char* line)
 224 {
 225         diag_printf("%s", line);
 226
 227         return ERROR_OK;
 228 }
 229
 230 int zy1000_configuration_output_handler_log(struct command_context *context,
 231                 const char* line)
 232 {
 233         LOG_USER_N("%s", line);
 234
 235         return ERROR_OK;
 236 }
 237
 238 #ifdef CYGPKG_PROFILE_GPROF
 239 //extern int64_t totaltime;
 240
 241 static int zylinjtag_Jim_Command_profile(Jim_Interp *interp, int argc,
 242                 Jim_Obj * const *argv)
 243 {
 244         if ((argc == 2) && (strcmp(Jim_GetString(argv[1], NULL), "stats")==0))
 245         {
 246 //              profile_off();
 247                 //LOG_USER("Stats %dms sleeping in select()", (int)totaltime);
 248         } else
 249         {
 250                 LOG_USER("Profiling started");
 251                 start_profile();
 252                 //totaltime = 0;
 253         }
 254         return ERROR_OK;
 255 }
 256
 257 #endif
 258
 259 externC void phi_init_all_network_interfaces(void);
 260
 261 struct command_context *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 static void zylinjtag_startNetwork(void)
 478 {
 479         // Bring TCP/IP up immediately before we're ready to accept commands.
 480         //
 481         // That is as soon as a PING responds, we're accepting telnet sessions.
 482 #if defined(CYGPKG_NET_FREEBSD_STACK)
 483         phi_init_all_network_interfaces();
 484 #else
 485         lwip_init();
 486 #endif
 487         if (!eth0_up)
 488         {
 489                 diag_printf("Network not up and running\n");
 490                 exit(-1);
 491         }
 492
 493         /* very first thing we want is a reboot capability */
 494         reboot_port();
 495
 496 #if defined(CYGPKG_NET_FREEBSD_STACK)
 497         /*start TFTP*/
 498         tftpd_start(69, &fileops);
 499 #endif
 500
 501         cyg_httpd_init_tcl_interpreter();
 502
 503         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 504                         NULL, NULL);
 505         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 506                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 507         Jim_CreateCommand(httpstate.jim_interp, "threads",
 508                         zylinjtag_Jim_Command_threads, NULL, NULL);
 509         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 510                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 511
 512         cyg_httpd_start();
 513
 514         webRunning = true;
 515
 516         diag_printf("Web server running\n");
 517
 518         int s;
 519         struct ifreq ifr;
 520         s = socket(AF_INET, SOCK_DGRAM, 0);
 521         if (s >= 0)
 522         {
 523                 strcpy(ifr.ifr_name, "eth0");
 524                 int res;
 525                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 526                 close(s);
 527
 528                 if (res < 0)
 529                 {
 530                         diag_printf("Can't obtain MAC address\n");
 531                         reboot();
 532                 }
 533         }
 534
 535         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 536                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 537                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 538                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 539                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 540                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 541                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 542
 543         discover_message
 544                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 545
 546         discover_launch();
 547 }
 548
 549 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 550                 cyg_addrword_t info)
 551 {
 552         writeLog = false;
 553         serialLog = true;
 554         char *infoStr = "unknown";
 555         switch (exception)
 556         {
 557 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 558         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 559         infoStr = "undefined instruction";
 560         break;
 561         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 562         infoStr = "software interrupt";
 563         break;
 564         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 565         infoStr = "abort prefetch";
 566         break;
 567         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 568         infoStr = "abort data";
 569         break;
 570 #endif
 571         default:
 572                 break;
 573         }
 574
 575         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 576
 577         diag_printf("Dumping log\n---\n");
 578         if (logCount >= logSize)
 579         {
 580                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 581         }
 582         diag_write(logBuffer, writePtr);
 583
 584         diag_printf("---\nLogdump complete.\n");
 585         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 586         diag_printf("\n---\nRebooting\n");
 587         HAL_PLATFORM_RESET();
 588
 589 }
 590
 591 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 592 static void setHandler(cyg_code_t exception)
 593 {
 594         cyg_exception_handler_t *old_handler;
 595         cyg_addrword_t old_data;
 596
 597         cyg_exception_set_handler(exception, print_exception_handler, 0,
 598                         &old_handler, &old_data);
 599 }
 600 #endif
 601
 602 static cyg_thread zylinjtag_uart_thread_object;
 603 static cyg_handle_t zylinjtag_uart_thread_handle;
 604 static char uart_stack[4096];
 605
 606 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 607 static char backwardBuffer[1024];
 608
 609 void setNoDelay(int session, int flag)
 610 {
 611 #if 1
 612         // This decreases latency dramatically for e.g. GDB load which
 613         // does not have a sliding window protocol
 614         //
 615         // Can cause *lots* of TCP/IP packets to be sent and it would have
 616         // to be enabled/disabled on the fly to avoid the CPU being
 617         // overloaded...
 618         setsockopt(session, /* socket affected */
 619         IPPROTO_TCP, /* set option at TCP level */
 620         TCP_NODELAY, /* name of option */
 621         (char *) &flag, /* the cast is historical
 622          cruft */
 623         sizeof(int)); /* length of option value */
 624 #endif
 625 }
 626
 627 #define TEST_TCPIP() 0
 628
 629 #if TEST_TCPIP
 630 struct
 631 {
 632         int req;
 633         int actual;
 634         int req2;
 635         int actual2;
 636 } tcpipSent[512 * 1024];
 637 int cur;
 638 #endif
 639
 640 static void zylinjtag_uart(cyg_addrword_t data)
 641 {
 642         int so_reuseaddr_option = 1;
 643
 644         int fd;
 645         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 646         {
 647                 LOG_ERROR("error creating socket: %s", strerror(errno));
 648                 exit(-1);
 649         }
 650
 651         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 652                         sizeof(int));
 653
 654         struct sockaddr_in sin;
 655         unsigned int address_size;
 656         address_size = sizeof(sin);
 657         memset(&sin, 0, sizeof(sin));
 658         sin.sin_family = AF_INET;
 659         sin.sin_addr.s_addr = INADDR_ANY;
 660         sin.sin_port = htons(5555);
 661
 662         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 663         {
 664                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 665                 exit(-1);
 666         }
 667
 668         if (listen(fd, 1) == -1)
 669         {
 670                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 671                 exit(-1);
 672         }
 673         //      socket_nonblock(fd);
 674
 675
 676         for (;;)
 677         {
 678                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 679                 if (session < 0)
 680                 {
 681                         continue;
 682                 }
 683
 684                 setNoDelay(session, 1);
 685                 int oldopts = fcntl(session, F_GETFL, 0);
 686                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 687
 688                 int serHandle = open(ZY1000_SER_DEV, O_RDWR | O_NONBLOCK);
 689                 if (serHandle < 0)
 690                 {
 691                         close(session);
 692                         continue;
 693                 }
 694
 695 #ifdef CYGPKG_PROFILE_GPROF
 696                 start_profile();
 697 #endif
 698                 size_t actual = 0;
 699                 size_t actual2 = 0;
 700                 size_t pos, pos2;
 701                 pos = 0;
 702                 pos2 = 0;
 703 #if TEST_TCPIP
 704                 cur = 0;
 705 #endif
 706                 for (;;)
 707                 {
 708                         fd_set write_fds;
 709                         fd_set read_fds;
 710                         FD_ZERO(&write_fds);
 711                         FD_ZERO(&read_fds);
 712                         int fd_max = -1;
 713                         FD_SET(session, &read_fds);
 714                         fd_max = session;
 715                         FD_SET(serHandle, &read_fds);
 716                         if (serHandle > fd_max)
 717                         {
 718                                 fd_max = serHandle;
 719                         }
 720                         /* Wait... */
 721
 722                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 723                         if ((actual == 0) && (actual2 == 0))
 724                         {
 725                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 726                                 if (retval <= 0)
 727                                 {
 728                                         break;
 729                                 }
 730                         }
 731
 732                         if (actual2 <= 0)
 733                         {
 734                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 735                                 int t;
 736                                 t = read(serHandle, backwardBuffer,
 737                                                 sizeof(backwardBuffer));
 738                                 actual2 = t;
 739                                 if (t < 0)
 740                                 {
 741                                         if (errno != EAGAIN)
 742                                         {
 743                                                 goto closeSession;
 744                                         }
 745                                         actual2 = 0;
 746                                 }
 747                                 pos2 = 0;
 748                         }
 749
 750                         size_t y = 0;
 751                         if (actual2 > 0)
 752                         {
 753                                 int written = write(session, backwardBuffer + pos2, actual2);
 754                                 if (written <= 0)
 755                                         goto closeSession;
 756                                 actual2 -= written;
 757                                 pos2 += written;
 758                                 y = written;
 759                         }
 760
 761                         if (FD_ISSET(session, &read_fds)
 762                                         && (sizeof(forwardBuffer) > actual))
 763                         {
 764                                 // NB! Here it is important that we empty the TCP/IP read buffer
 765                                 // to make transmission tick right
 766                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 767                                 pos = 0;
 768                                 int t;
 769                                 // this will block if there is no data at all
 770                                 t = read_socket(session, forwardBuffer + actual,
 771                                                 sizeof(forwardBuffer) - actual);
 772                                 if (t <= 0)
 773                                 {
 774                                         goto closeSession;
 775                                 }
 776                                 actual += t;
 777                         }
 778
 779                         int y2 = 0;
 780                         if (actual > 0)
 781                         {
 782                                 /* Do not put things into the serial buffer if it has something to send
 783                                  * as that can cause a single byte to be sent at the time.
 784                                  *
 785                                  *
 786                                  */
 787                                 int written = write(serHandle, forwardBuffer + pos, actual);
 788                                 if (written < 0)
 789                                 {
 790                                         if (errno != EAGAIN)
 791                                         {
 792                                                 goto closeSession;
 793                                         }
 794                                         // The serial buffer is full
 795                                         written = 0;
 796                                 }
 797                                 else
 798                                 {
 799                                         actual -= written;
 800                                         pos += written;
 801                                 }
 802                                 y2 = written;
 803                         }
 804 #if TEST_TCPIP
 805                         if (cur < 1024)
 806                         {
 807                                 tcpipSent[cur].req = x;
 808                                 tcpipSent[cur].actual = y;
 809                                 tcpipSent[cur].req2 = x2;
 810                                 tcpipSent[cur].actual2 = y2;
 811                                 cur++;
 812                         }
 813 #endif
 814                 }
 815                 closeSession: close(session);
 816                 close(serHandle);
 817
 818 #if TEST_TCPIP
 819                 int i;
 820                 for (i = 0; i < 1024; i++)
 821                 {
 822                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 823                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 824
 825                 }
 826 #endif
 827         }
 828         close(fd);
 829
 830 }
 831
 832 void startUart(void)
 833 {
 834         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 835                         (void *) uart_stack, sizeof(uart_stack),
 836                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 837         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 838         cyg_thread_resume(zylinjtag_uart_thread_handle);
 839 }
 840
 841 static int zylinjtag_Jim_Command_uart(Jim_Interp *interp, int argc,
 842                 Jim_Obj * const *argv)
 843 {
 844         static int current_baud = 38400;
 845         if (argc == 1)
 846         {
 847                 Jim_SetResult(interp, Jim_NewIntObj(interp, current_baud));
 848                 return JIM_OK;
 849         }
 850         else if (argc != 2)
 851         {
 852                 return JIM_ERR;
 853         }
 854
 855         long new_baudrate;
 856         if (Jim_GetLong(interp, argv[1], &new_baudrate) != JIM_OK)
 857                 return JIM_ERR;
 858
 859         current_baud = new_baudrate;
 860
 861         int baud;
 862         switch (current_baud)
 863         {
 864         case 9600:
 865                 baud = CYGNUM_SERIAL_BAUD_9600;
 866                 break;
 867         case 19200:
 868                 baud = CYGNUM_SERIAL_BAUD_19200;
 869                 break;
 870         case 38400:
 871                 baud = CYGNUM_SERIAL_BAUD_38400;
 872                 break;
 873         case 57600:
 874                 baud = CYGNUM_SERIAL_BAUD_57600;
 875                 break;
 876         case 115200:
 877                 baud = CYGNUM_SERIAL_BAUD_115200;
 878                 break;
 879         case 230400:
 880                 baud = CYGNUM_SERIAL_BAUD_230400;
 881                 break;
 882         default:
 883                 Jim_SetResult(interp, Jim_NewStringObj(interp, "unsupported baudrate", -1));
 884                 return JIM_ERR;
 885         }
 886
 887         cyg_serial_info_t buf;
 888         cyg_uint32 len = 1;
 889         //get existing serial configuration
 890         len = sizeof(cyg_serial_info_t);
 891         int err;
 892         cyg_io_handle_t serial_handle;
 893
 894         err = cyg_io_lookup(ZY1000_SER_DEV, &serial_handle);
 895         if (err != ENOERR)
 896         {
 897                 Jim_SetResult(interp, Jim_NewStringObj(interp, "Could not open serial port", -1));
 898                 return JIM_ERR;
 899         }
 900
 901         err = cyg_io_get_config(serial_handle,
 902                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 903         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 904                         &len);
 905         if (err != ENOERR)
 906         {
 907                 Jim_SetResult(interp, Jim_NewStringObj(interp, "Failed to get serial port settings", -1));
 908                 return JIM_ERR;
 909         }
 910         buf.baud = baud;
 911
 912         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 913                         &len);
 914         if (err != ENOERR)
 915         {
 916                 Jim_SetResult(interp, Jim_NewStringObj(interp, "Failed to set serial port settings", -1));
 917                 return JIM_ERR;
 918         }
 919
 920         return JIM_OK;
 921 }
 922
 923 bool logAllToSerial = false;
 924
 925
 926 int boolParam(char *var);
 927
 928
 929 static const char *zylin_config_dir="/config/settings";
 930
 931 static int add_default_dirs(void)
 932 {
 933         add_script_search_dir(zylin_config_dir);
 934         add_script_search_dir("/rom/lib/openocd");
 935         add_script_search_dir("/rom");
 936         return ERROR_OK;
 937 }
 938
 939 int main(int argc, char *argv[])
 940 {
 941         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 942          * need to allocate towards the end of the heap.  */
 943
 944 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 945         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 946         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 947         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 948 #endif
 949
 950         int err;
 951
 952         atexit(keep_webserver);
 953
 954         diag_init_putc(_zylinjtag_diag_write_char);
 955         // We want this in the log.
 956 #ifdef CYGPKG_HAL_NIOS2
 957         diag_printf("Zylin ZY1000 PCB revc.\n");
 958 #else
 959         diag_printf("Zylin ZY1000 PCB revb.\n");
 960 #endif
 961
 962         err = mount("", "/ram", "ramfs");
 963         if (err < 0)
 964         {
 965                 diag_printf("unable to mount ramfs\n");
 966         }
 967         chdir("/ram");
 968
 969         char address[16];
 970         sprintf(address, "%p", &filedata[0]);
 971         err = mount(address, "/rom", "romfs");
 972         if (err < 0)
 973         {
 974                 diag_printf("unable to mount /rom\n");
 975         }
 976
 977         err = mount("", "/log", "logfs");
 978         if (err < 0)
 979         {
 980                 diag_printf("unable to mount logfs\n");
 981         }
 982
 983         err = mount("", "/tftp", "tftpfs");
 984         if (err < 0)
 985         {
 986                 diag_printf("unable to mount logfs\n");
 987         }
 988
 989         log = fopen("/log/log", "w");
 990         if (log == NULL)
 991         {
 992                 diag_printf("Could not open log file /ram/log\n");
 993                 exit(-1);
 994         }
 995
 996
 997         copydir("/rom", "/ram/cgi");
 998
 999 #ifdef CYGPKG_HAL_NIOS2
1000         cyg_flashaddr_t err_address;
1001 #define UNCACHED_EXT_FLASH_BASE (0x80000000 + EXT_FLASH_BASE)
1002         /* The revc flash is locked upon reset, unlock it */
1003 #ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
1004         if ((err = flash_unlock((void *) UNCACHED_EXT_FLASH_BASE, EXT_FLASH_SPAN,
1005                         (void **) &err_address)) != 0)
1006         {
1007                 diag_printf("Error: could not unlock flash\n");
1008         }
1009 #endif
1010 #endif
1011
1012
1013         err = mount("/dev/flash1", "/config", "jffs2");
1014         if (err < 0)
1015         {
1016                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1017                 err = mount("", "/config", "ramfs");
1018                 if (err < 0)
1019                 {
1020                         diag_printf("unable to mount /config as ramdisk.\n");
1021                         reboot();
1022                 }
1023         }
1024         else
1025         {
1026                 /* are we using a ram disk instead of a flash disk? This is used
1027                  * for ZY1000 live demo...
1028                  *
1029                  * copy over flash disk to ram block device
1030                  */
1031                 if (boolParam("ramdisk"))
1032                 {
1033                         diag_printf("Unmounting /config from flash and using ram instead\n");
1034                         err = umount("/config");
1035                         if (err < 0)
1036                         {
1037                                 diag_printf("unable to unmount jffs\n");
1038                                 reboot();
1039                         }
1040
1041                         err = mount("/dev/flash1", "/config2", "jffs2");
1042                         if (err < 0)
1043                         {
1044                                 diag_printf("unable to mount jffs\n");
1045                                 reboot();
1046                         }
1047
1048                         err = mount("", "/config", "ramfs");
1049                         if (err < 0)
1050                         {
1051                                 diag_printf("unable to mount ram block device\n");
1052                                 reboot();
1053                         }
1054
1055                         //              copydir("/config2", "/config");
1056                         copyfile("/config2/ip", "/config/ip");
1057                         copydir("/config2/settings", "/config/settings");
1058
1059                         umount("/config2");
1060                 }
1061         }
1062
1063         mkdir(zylin_config_dir, 0777);
1064         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1065         mkdir(dirname, 0777);
1066         free(dirname);
1067         dirname = alloc_printf("%s/board", zylin_config_dir);
1068         mkdir(dirname, 0777);
1069         free(dirname);
1070         dirname = alloc_printf("%s/event", zylin_config_dir);
1071         mkdir(dirname, 0777);
1072         free(dirname);
1073
1074         logAllToSerial = boolParam("logserial");
1075
1076         // We need the network & web server in case there is something wrong with
1077         // the config files that invoke exit()
1078         zylinjtag_startNetwork();
1079
1080         /* we're going to access the jim interpreter from here on... */
1081         openocd_sleep_postlude();
1082         startUart();
1083
1084         add_default_dirs();
1085
1086         /* initialize commandline interface */
1087         struct command_context * cmd_ctx;
1088         struct command_context *setup_command_handler(Jim_Interp *interp);
1089         cmd_ctx = setup_command_handler(httpstate.jim_interp);
1090         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1091         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1092
1093         if (util_init(cmd_ctx) != ERROR_OK)
1094                 return EXIT_FAILURE;
1095
1096         if (ioutil_init(cmd_ctx) != ERROR_OK)
1097                 return EXIT_FAILURE;
1098
1099 #ifdef CYGPKG_PROFILE_GPROF
1100         Jim_CreateCommand(httpstate.jim_interp, "zy1000_profile", zylinjtag_Jim_Command_profile,
1101                         NULL, NULL);
1102 #endif
1103
1104         Jim_CreateCommand(httpstate.jim_interp, "zy1000_uart", zylinjtag_Jim_Command_uart, NULL, NULL);
1105
1106
1107         log_init();
1108
1109         set_log_output(cmd_ctx, log);
1110
1111         LOG_DEBUG("log init complete");
1112
1113         //      diag_printf("Executing config files\n");
1114
1115         if (logAllToSerial)
1116         {
1117                 diag_printf(
1118                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1119                 command_run_line(cmd_ctx, "debug_level 3");
1120         }
1121
1122         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1123
1124         int ret;
1125         ret = server_init(cmd_ctx);
1126         if (ERROR_OK != ret)
1127                 return EXIT_FAILURE;
1128
1129         /* we MUST always run the init command as it will launch telnet sessions */
1130         command_run_line(cmd_ctx, "init");
1131
1132         // FIX!!!  Yuk!
1133         // diag_printf() is really invoked from many more places than we trust it
1134         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1135         //
1136         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1137         // fingers that it doesn't cause any crashes.
1138         diag_printf("Init complete, GDB & telnet servers launched.\n");
1139         command_set_output_handler(cmd_ctx,
1140                         zy1000_configuration_output_handler_log, NULL);
1141         if (!logAllToSerial)
1142         {
1143                 serialLog = false;
1144         }
1145
1146         /* handle network connections */
1147         server_loop(cmd_ctx);
1148         openocd_sleep_prelude();
1149
1150         /* shut server down */
1151         server_quit();
1152
1153         /* free commandline interface */
1154         command_done(cmd_ctx);
1155         umount("/config");
1156
1157         exit(0);
1158         for (;;)
1159                 ;
1160 }
1161
1162 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1163 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1164 {
1165         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1166         return 0;
1167 }
1168
1169 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1170
1171 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1172 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1173
1174 #include <pkgconf/system.h>
1175 #include <pkgconf/hal.h>
1176 #include <pkgconf/kernel.h>
1177 #include <pkgconf/io_fileio.h>
1178 #include <pkgconf/fs_rom.h>
1179
1180 #include <cyg/kernel/ktypes.h>         // base kernel types
1181 #include <cyg/infra/cyg_trac.h>        // tracing macros
1182 #include <cyg/infra/cyg_ass.h>         // assertion macros
1183 #include <cyg/fileio/fileio.h>
1184 #include <cyg/kernel/kapi.h>
1185 #include <cyg/infra/diag.h>
1186
1187 //==========================================================================
1188 // Eventually we want to eXecute In Place from the ROM in a protected
1189 // environment, so we'll need executables to be aligned to a boundary
1190 // suitable for MMU protection. A suitable boundary would be the 4k
1191 // boundary in all the CPU architectures I am currently aware of.
1192
1193 // Forward definitions
1194
1195 // Filesystem operations
1196 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1197 static int tftpfs_umount(cyg_mtab_entry *mte);
1198 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1199                 int mode, cyg_file *fte);
1200 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1201 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1202
1203 // File operations
1204 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1205 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1206 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1207
1208 //==========================================================================
1209 // Filesystem table entries
1210
1211 // -------------------------------------------------------------------------
1212 // Fstab entry.
1213 // This defines the entry in the filesystem table.
1214 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1215 // we should never block in any filesystem operations.
1216 #if 1
1217 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1218                 CYG_SYNCMODE_NONE,
1219                 tftpfs_mount,
1220                 tftpfs_umount,
1221                 tftpfs_open,
1222                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1223                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1224                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1225                 (cyg_fsop_rename *)cyg_fileio_erofs,
1226                 (cyg_fsop_link *)cyg_fileio_erofs,
1227                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1228                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1229                 (cyg_fsop_stat *)cyg_fileio_erofs,
1230                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1231                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1232 #endif
1233
1234 // -------------------------------------------------------------------------
1235 // mtab entry.
1236 // This defines a single ROMFS loaded into ROM at the configured address
1237 //
1238 // MTAB_ENTRY(rom_mte,  // structure name
1239 //              "/rom",         // mount point
1240 //              "romfs",        // FIlesystem type
1241 //              "",             // hardware device
1242 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1243 //);
1244
1245
1246 // -------------------------------------------------------------------------
1247 // File operations.
1248 // This set of file operations are used for normal open files.
1249
1250 static cyg_fileops tftpfs_fileops =
1251 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1252                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1253                 tftpfs_fo_fsync, tftpfs_fo_close,
1254                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1255                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1256                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1257
1258 // -------------------------------------------------------------------------
1259 // tftpfs_mount()
1260 // Process a mount request. This mainly finds root for the
1261 // filesystem.
1262
1263 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1264 {
1265         return ENOERR;
1266 }
1267
1268 static int tftpfs_umount(cyg_mtab_entry *mte)
1269 {
1270         return ENOERR;
1271 }
1272
1273 struct Tftp
1274 {
1275         int write;
1276         int readFile;
1277         cyg_uint8 *mem;
1278         int actual;
1279         char *server;
1280         int port;
1281         char *file;
1282 };
1283
1284 static void freeTftp(struct Tftp *t)
1285 {
1286         if (t == NULL)
1287                 return;
1288         if (t->mem)
1289                 free(t->mem);
1290         if (t->server)
1291                 free(t->server);
1292         if (t->file)
1293                 free(t->file);
1294         free(t);
1295 }
1296
1297 static const int tftpMaxSize = 8192 * 1024;
1298 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1299                 int mode, cyg_file *file)
1300 {
1301         struct Tftp *tftp;
1302         tftp = malloc(sizeof(struct Tftp));
1303         if (tftp == NULL)
1304                 return EMFILE;
1305         memset(tftp, 0, sizeof(struct Tftp));
1306
1307         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1308         file->f_type = CYG_FILE_TYPE_FILE;
1309         file->f_ops = &tftpfs_fileops;
1310         file->f_offset = 0;
1311         file->f_data = 0;
1312         file->f_xops = 0;
1313
1314         tftp->mem = malloc(tftpMaxSize);
1315         if (tftp->mem == NULL)
1316         {
1317                 freeTftp(tftp);
1318                 return EMFILE;
1319         }
1320
1321         char *server = strchr(name, '/');
1322         if (server == NULL)
1323         {
1324                 freeTftp(tftp);
1325                 return EMFILE;
1326         }
1327
1328         tftp->server = malloc(server - name + 1);
1329         if (tftp->server == NULL)
1330         {
1331                 freeTftp(tftp);
1332                 return EMFILE;
1333         }
1334         strncpy(tftp->server, name, server - name);
1335         tftp->server[server - name] = 0;
1336
1337         tftp->port = 0; /* default port 69 */
1338         char *port;
1339         port = strchr(tftp->server, ':');
1340         if (port != NULL)
1341         {
1342                 tftp->port = atoi(port + 1);
1343                 *port = 0;
1344         }
1345
1346         tftp->file = strdup(server + 1);
1347         if (tftp->file == NULL)
1348         {
1349                 freeTftp(tftp);
1350                 return EMFILE;
1351         }
1352
1353         file->f_data = (CYG_ADDRWORD) tftp;
1354
1355         return ENOERR;
1356 }
1357
1358 static int fetchTftp(struct Tftp *tftp)
1359 {
1360         if (!tftp->readFile)
1361         {
1362                 int err;
1363                 tftp->actual = tftp_client_get(tftp->file, tftp->server, tftp->port, tftp->mem,
1364                                 tftpMaxSize, TFTP_OCTET, &err);
1365
1366                 if (tftp->actual < 0)
1367                 {
1368                         return EMFILE;
1369                 }
1370                 tftp->readFile = 1;
1371         }
1372         return ENOERR;
1373 }
1374
1375 // -------------------------------------------------------------------------
1376 // tftpfs_fo_write()
1377 // Read data from file.
1378
1379 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1380 {
1381         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1382
1383         if (fetchTftp(tftp) != ENOERR)
1384                 return EMFILE;
1385
1386         int i;
1387         off_t pos = fp->f_offset;
1388         int resid = 0;
1389         for (i = 0; i < uio->uio_iovcnt; i++)
1390         {
1391                 cyg_iovec *iov = &uio->uio_iov[i];
1392                 char *buf = (char *) iov->iov_base;
1393                 off_t len = iov->iov_len;
1394
1395                 if (len + pos > tftp->actual)
1396                 {
1397                         len = tftp->actual - pos;
1398                 }
1399                 resid += iov->iov_len - len;
1400
1401                 memcpy(buf, tftp->mem + pos, len);
1402                 pos += len;
1403
1404         }
1405         uio->uio_resid = resid;
1406         fp->f_offset = pos;
1407
1408         return ENOERR;
1409 }
1410
1411 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1412 {
1413         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1414
1415         int i;
1416         off_t pos = fp->f_offset;
1417         int resid = 0;
1418         for (i = 0; i < uio->uio_iovcnt; i++)
1419         {
1420                 cyg_iovec *iov = &uio->uio_iov[i];
1421                 char *buf = (char *) iov->iov_base;
1422                 off_t len = iov->iov_len;
1423
1424                 if (len + pos > tftpMaxSize)
1425                 {
1426                         len = tftpMaxSize - pos;
1427                 }
1428                 resid += iov->iov_len - len;
1429
1430                 memcpy(tftp->mem + pos, buf, len);
1431                 pos += len;
1432
1433         }
1434         uio->uio_resid = resid;
1435         fp->f_offset = pos;
1436
1437         tftp->write = 1;
1438
1439         return ENOERR;
1440 }
1441
1442 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1443 {
1444         int error = ENOERR;
1445         return error;
1446 }
1447
1448 // -------------------------------------------------------------------------
1449 // romfs_fo_close()
1450 // Close a file. We just clear out the data pointer.
1451
1452 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1453 {
1454         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1455         int error = ENOERR;
1456
1457         if (tftp->write)
1458         {
1459                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1460                                 TFTP_OCTET, &error);
1461         }
1462
1463         freeTftp(tftp);
1464         fp->f_data = 0;
1465         return error;
1466 }
1467
1468 // -------------------------------------------------------------------------
1469 // romfs_fo_lseek()
1470 // Seek to a new file position.
1471
1472 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1473 {
1474         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1475         off_t pos = *apos;
1476
1477         if (fetchTftp(tftp) != ENOERR)
1478                 return EMFILE;
1479
1480         switch (whence)
1481         {
1482         case SEEK_SET:
1483                 // Pos is already where we want to be.
1484                 break;
1485
1486         case SEEK_CUR:
1487                 // Add pos to current offset.
1488                 pos += fp->f_offset;
1489                 break;
1490
1491         case SEEK_END:
1492                 // Add pos to file size.
1493                 pos += tftp->actual;
1494                 break;
1495
1496         default:
1497                 return EINVAL;
1498         }
1499
1500         // Check that pos is still within current file size, or at the
1501         // very end.
1502         if (pos < 0 || pos > tftp->actual)
1503                 return EINVAL;
1504
1505         // All OK, set fp offset and return new position.
1506         *apos = fp->f_offset = pos;
1507
1508         return ENOERR;
1509 }
1510
1511 void usleep(int us)
1512 {
1513         if (us > 10000)
1514                 cyg_thread_delay(us / 10000 + 1);
1515         else
1516                 HAL_DELAY_US(us);
1517 }
1518
1519 // Chunked version.
1520 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1521 {
1522         cyg_httpd_start_chunked("text");
1523         if (logCount >= logSize)
1524         {
1525                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1526                                 - logCount % logSize);
1527         }
1528         cyg_httpd_write_chunked(logBuffer, writePtr);
1529         cyg_httpd_end_chunked();
1530         return -1;
1531 }
1532
1533 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1534
1535 // Filesystem operations
1536 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1537 static int logfs_umount(cyg_mtab_entry *mte);
1538 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1539                 int mode, cyg_file *fte);
1540 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1541
1542 // File operations
1543 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1544 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1545
1546 #include <cyg/io/devtab.h>
1547
1548 //==========================================================================
1549 // Filesystem table entries
1550
1551 // -------------------------------------------------------------------------
1552 // Fstab entry.
1553 // This defines the entry in the filesystem table.
1554 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1555 // we should never block in any filesystem operations.
1556 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1557                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1558                 logfs_mount,
1559                 logfs_umount,
1560                 logfs_open,
1561                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1562                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1563                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1564                 (cyg_fsop_rename *)cyg_fileio_erofs,
1565                 (cyg_fsop_link *)cyg_fileio_erofs,
1566                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1567                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1568                 (cyg_fsop_stat *)cyg_fileio_erofs,
1569                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1570                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1571
1572 // -------------------------------------------------------------------------
1573 // File operations.
1574 // This set of file operations are used for normal open files.
1575
1576 static cyg_fileops logfs_fileops =
1577 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1578                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1579                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1580                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1581                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1582                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1583
1584 // -------------------------------------------------------------------------
1585 // logfs_mount()
1586 // Process a mount request. This mainly finds root for the
1587 // filesystem.
1588
1589 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1590 {
1591         return ENOERR;
1592 }
1593
1594 static int logfs_umount(cyg_mtab_entry *mte)
1595 {
1596         return ENOERR;
1597 }
1598
1599 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1600                 int mode, cyg_file *file)
1601 {
1602         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1603         file->f_type = CYG_FILE_TYPE_FILE;
1604         file->f_ops = &logfs_fileops;
1605         file->f_offset = 0;
1606         file->f_data = 0;
1607         file->f_xops = 0;
1608         return ENOERR;
1609 }
1610
1611 // -------------------------------------------------------------------------
1612 // logfs_fo_write()
1613 // Write data to file.
1614
1615 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1616 {
1617         int i;
1618         for (i = 0; i < uio->uio_iovcnt; i++)
1619         {
1620                 cyg_iovec *iov = &uio->uio_iov[i];
1621                 char *buf = (char *) iov->iov_base;
1622                 off_t len = iov->iov_len;
1623
1624                 diag_write(buf, len);
1625         }
1626         uio->uio_resid = 0;
1627
1628         return ENOERR;
1629 }
1630 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1631 {
1632         return ENOERR;
1633 }
1634
1635 // -------------------------------------------------------------------------
1636 // romfs_fo_close()
1637 // Close a file. We just clear out the data pointer.
1638
1639 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1640 {
1641         return ENOERR;
1642 }
1643
1644 int loadFile(const char *fileName, void **data, int *len);
1645
1646 /* boolean parameter stored on config */
1647 int boolParam(char *var)
1648 {
1649         bool result = false;
1650         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1651         if (name == NULL)
1652                 return result;
1653
1654         void *data;
1655         int len;
1656         if (loadFile(name, &data, &len) == ERROR_OK)
1657         {
1658                 if (len > 1)
1659                         len = 1;
1660                 result = strncmp((char *) data, "1", len) == 0;
1661                 free(data);
1662         }
1663         free(name);
1664         return result;
1665 }
1666