src/ecosboard.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2008 by Øyvind Harboe                              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "log.h"
  25 #include "types.h"
  26 #include "jtag.h"
  27 #include "configuration.h"
  28 #include "xsvf.h"
  29 #include "svf.h"
  30 #include "target.h"
  31 #include "flash.h"
  32 #include "nand.h"
  33 #include "pld.h"
  34
  35 #include "command.h"
  36 #include "server.h"
  37 #include "telnet_server.h"
  38 #include "gdb_server.h"
  39
  40 #include <time_support.h>
  41 #include <sys/time.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45 #include <unistd.h>
  46 #include <errno.h>
  47
  48 #include <cyg/io/flash.h>
  49 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  50 #include <network.h>
  51
  52 #include <fcntl.h>
  53 #include <sys/stat.h>
  54 #include <cyg/fileio/fileio.h>
  55 #include <dirent.h>
  56 #include <cyg/athttpd/http.h>
  57 #include <cyg/athttpd/socket.h>
  58 #include <cyg/athttpd/handler.h>
  59 #include <cyg/athttpd/cgi.h>
  60 #include <cyg/athttpd/forms.h>
  61 #include <cyg/discover/discover.h>
  62 #include <cyg/hal/hal_diag.h>
  63 #include <cyg/kernel/kapi.h>
  64 #include <cyg/io/serialio.h>
  65 #include <cyg/io/io.h>
  66 #include <netinet/tcp.h>
  67 #include "rom.h"
  68 #include <sys/ioctl.h>
  69 #include <sys/socket.h>
  70 #include <netinet/in.h>
  71 #include <net/if.h>
  72 #include <arpa/inet.h>
  73 #include <sys/types.h>
  74 #include <sys/socket.h>
  75 #include <netdb.h>
  76 #include <netinet/in.h>
  77 #include <unistd.h>
  78 #include <arpa/inet.h>
  79 #include <stdio.h>
  80 #include <ifaddrs.h>
  81 #include <string.h>
  82
  83 #include <unistd.h>
  84 #include <stdio.h>
  85
  86
  87 #define MAX_IFS 64
  88 #if defined(CYGPKG_NET_FREEBSD_STACK)
  89 #include <tftp_support.h>
  90 /* posix compatibility broken*/
  91 struct tftpd_fileops fileops =
  92 {
  93         (int (*)(const char *, int))open,
  94         close,
  95         (int (*)(int, const void *, int))write,
  96         (int (*)(int, void *, int))read
  97 };
  98
  99 #endif
 100
 101
 102 void diag_write(char *buf, int len)
 103 {
 104         int j;
 105         for (j = 0; j < len; j++)
 106         {
 107                 diag_printf("%c", buf[j]);
 108         }
 109 }
 110
 111 static bool serialLog = true;
 112 static bool writeLog = true;
 113
 114 char hwaddr[512];
 115
 116
 117 extern flash_driver_t *flash_drivers[];
 118 extern target_type_t *target_types[];
 119
 120 #ifdef CYGPKG_PROFILE_GPROF
 121 #include <cyg/profile/profile.h>
 122
 123 extern char _stext, _etext; // Defined by the linker
 124
 125 static char *start_of_code=&_stext;
 126 static char *end_of_code=&_etext;
 127
 128 void start_profile(void)
 129 {
 130         // This starts up the system-wide profiling, gathering
 131         // profile information on all of the code, with a 16 byte
 132         // "bucket" size, at a rate of 100us/profile hit.
 133         // Note: a bucket size of 16 will give pretty good function
 134         //       resolution.  Much smaller and the buffer becomes
 135         //       much too large for very little gain.
 136         // Note: a timer period of 100us is also a reasonable
 137         //       compromise.  Any smaller and the overhead of
 138         //       handling the timter (profile) interrupt could
 139         //       swamp the system.  A fast processor might get
 140         //       by with a smaller value, but a slow one could
 141         //       even be swamped by this value.  If the value is
 142         //       too large, the usefulness of the profile is reduced.
 143
 144         // no more interrupts than 1/10ms.
 145         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 146         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 147         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 148 }
 149 #endif
 150
 151 static FILE *log;
 152
 153 static char reboot_stack[2048];
 154
 155 static void zylinjtag_reboot(cyg_addrword_t data)
 156 {
 157         serialLog = true;
 158         diag_printf("Rebooting in 500 ticks..\n");
 159         cyg_thread_delay(500);
 160         diag_printf("Unmounting /config..\n");
 161         umount("/config");
 162         diag_printf("Rebooting..\n");
 163         HAL_PLATFORM_RESET();
 164 }
 165 static cyg_thread zylinjtag_thread_object;
 166 static cyg_handle_t zylinjtag_thread_handle;
 167
 168 void reboot(void)
 169 {
 170         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 171                         (void *) reboot_stack, sizeof(reboot_stack),
 172                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 173         cyg_thread_resume(zylinjtag_thread_handle);
 174 }
 175
 176 static char zylinjtag_reboot_port_stack[2048];
 177 static cyg_thread zylinjtag_reboot_port_thread_object;
 178 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 179
 180 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 181 {
 182         int so_reuseaddr_option = 1;
 183
 184         int fd;
 185         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 186         {
 187                 LOG_ERROR("error creating socket: %s", strerror(errno));
 188                 exit(-1);
 189         }
 190
 191         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 192                         sizeof(int));
 193
 194         struct sockaddr_in sin;
 195         unsigned int address_size;
 196         address_size = sizeof(sin);
 197         memset(&sin, 0, sizeof(sin));
 198         sin.sin_family = AF_INET;
 199         sin.sin_addr.s_addr = INADDR_ANY;
 200         sin.sin_port = htons(1234);
 201
 202         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 203         {
 204                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 205                 exit(-1);
 206         }
 207
 208         if (listen(fd, 1) == -1)
 209         {
 210                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 211                 exit(-1);
 212         }
 213         //      socket_nonblock(fd);
 214
 215
 216         accept(fd, (struct sockaddr *) &sin, &address_size);
 217
 218         diag_printf("Got reboot signal on port 1234");
 219
 220         reboot();
 221
 222 }
 223
 224 void reboot_port(void)
 225 {
 226         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 227                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 228                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 229         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 230 }
 231
 232 int configuration_output_handler(struct command_context_s *context,
 233                 const char* line)
 234 {
 235         diag_printf("%s", line);
 236
 237         return ERROR_OK;
 238 }
 239
 240 int zy1000_configuration_output_handler_log(struct command_context_s *context,
 241                 const char* line)
 242 {
 243         LOG_USER_N("%s", line);
 244
 245         return ERROR_OK;
 246 }
 247
 248 #ifdef CYGPKG_PROFILE_GPROF
 249
 250 int eCosBoard_handle_eCosBoard_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 251 {
 252         command_print(cmd_ctx, "Profiling started");
 253         start_profile();
 254         return ERROR_OK;
 255 }
 256
 257 #endif
 258
 259 externC void phi_init_all_network_interfaces(void);
 260
 261 command_context_t *cmd_ctx;
 262
 263 static bool webRunning = false;
 264
 265 void keep_webserver(void)
 266 {
 267         // Target initialisation is only attempted at startup, so we sleep forever and
 268         // let the http server bail us out(i.e. get config files set up).
 269         diag_printf("OpenOCD has invoked exit().\n"
 270                 "Use web server to correct any configuration settings and reboot.\n");
 271         if (!webRunning)
 272                 reboot();
 273
 274         // exit() will terminate the current thread and we we'll then sleep eternally or
 275         // we'll have a reboot scheduled.
 276 }
 277
 278 extern void printDccChar(char c);
 279
 280 static char logBuffer[128 * 1024];
 281 static const int logSize = sizeof(logBuffer);
 282 int writePtr = 0;
 283 int logCount = 0;
 284
 285 void _zylinjtag_diag_write_char(char c, void **param)
 286 {
 287         if (writeLog)
 288         {
 289                 logBuffer[writePtr] = c;
 290                 writePtr = (writePtr + 1) % logSize;
 291                 logCount++;
 292         }
 293         if (serialLog)
 294         {
 295                 if (c == '\n')
 296                 {
 297                         HAL_DIAG_WRITE_CHAR('\r');
 298                 }
 299                 HAL_DIAG_WRITE_CHAR(c);
 300         }
 301
 302 #ifdef CYGPKG_HAL_ZYLIN_PHI
 303         printDccChar(c);
 304 #endif
 305 }
 306
 307 void copyfile(char *name2, char *name1);
 308
 309 void copydir(char *name, char *destdir);
 310
 311 #if 0
 312 MTAB_ENTRY(romfs_mte1,
 313                 "/rom",
 314                 "romfs",
 315                 "",
 316                 (CYG_ADDRWORD) &filedata[0]);
 317 #endif
 318
 319 void openocd_sleep_prelude(void)
 320 {
 321         cyg_mutex_unlock(&httpstate.jim_lock);
 322 }
 323
 324 void openocd_sleep_postlude(void)
 325 {
 326         cyg_mutex_lock(&httpstate.jim_lock);
 327 }
 328
 329 void format(void)
 330 {
 331         diag_printf("Formatting JFFS2...\n");
 332
 333         cyg_io_handle_t handle;
 334
 335         Cyg_ErrNo err;
 336         err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
 337         if (err != ENOERR)
 338         {
 339                 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
 340                 reboot();
 341         }
 342
 343         cyg_uint32 len;
 344         cyg_io_flash_getconfig_devsize_t ds;
 345         len = sizeof(ds);
 346         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
 347         if (err != ENOERR)
 348         {
 349                 diag_printf("Flash error cyg_io_get_config %d\n", err);
 350                 reboot();
 351         }
 352
 353         cyg_io_flash_getconfig_erase_t e;
 354         len = sizeof(e);
 355
 356         e.offset = 0;
 357         e.len = ds.dev_size;
 358
 359         diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
 360         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
 361         if (err != ENOERR)
 362         {
 363                 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
 364                 reboot();
 365         }
 366
 367         diag_printf("Flash formatted successfully\n");
 368
 369         reboot();
 370 }
 371
 372 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
 373                 Jim_Obj * const *argv)
 374 {
 375         if (argc != 1)
 376         {
 377                 return JIM_ERR;
 378         }
 379
 380         format();
 381         for (;;)
 382                 ;
 383 }
 384
 385 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
 386                 Jim_Obj * const *argv)
 387 {
 388         cyg_handle_t thread = 0;
 389         cyg_uint16 id = 0;
 390         Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
 391
 392         /* Loop over the threads, and generate a table row for
 393          * each.
 394          */
 395         while (cyg_thread_get_next(&thread, &id))
 396         {
 397                 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
 398
 399                 cyg_thread_info info;
 400                 char *state_string;
 401
 402                 cyg_thread_get_info(thread, id, &info);
 403
 404                 if (info.name == NULL)
 405                         info.name = "<no name>";
 406
 407                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 408                                 info.name, strlen(info.name)));
 409
 410                 /* Translate the state into a string.
 411                  */
 412                 if (info.state == 0)
 413                         state_string = "RUN";
 414                 else if (info.state & 0x04)
 415                         state_string = "SUSP";
 416                 else
 417                         switch (info.state & 0x1b)
 418                         {
 419                         case 0x01:
 420                                 state_string = "SLEEP";
 421                                 break;
 422                         case 0x02:
 423                                 state_string = "CNTSLEEP";
 424                                 break;
 425                         case 0x08:
 426                                 state_string = "CREATE";
 427                                 break;
 428                         case 0x10:
 429                                 state_string = "EXIT";
 430                                 break;
 431                         default:
 432                                 state_string = "????";
 433                                 break;
 434                         }
 435
 436                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 437                                 state_string, strlen(state_string)));
 438
 439                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
 440                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 441                                 info.set_pri));
 442                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 443                                 info.cur_pri));
 444
 445                 Jim_ListAppendElement(interp, threads, threadObj);
 446         }
 447         Jim_SetResult(interp, threads);
 448
 449         return JIM_OK;
 450 }
 451
 452 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
 453                 Jim_Obj * const *argv)
 454 {
 455         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 456
 457         if (logCount >= logSize)
 458         {
 459                 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
 460                                 % logSize, logSize - logCount % logSize);
 461         }
 462         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
 463
 464         Jim_SetResult(interp, tclOutput);
 465         return JIM_OK;
 466 }
 467
 468 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
 469                 Jim_Obj * const *argv)
 470 {
 471         reboot();
 472         return JIM_OK;
 473 }
 474
 475
 476 static void zylinjtag_startNetwork(void)
 477 {
 478         // Bring TCP/IP up immediately before we're ready to accept commands.
 479         //
 480         // That is as soon as a PING responds, we're accepting telnet sessions.
 481 #if defined(CYGPKG_NET_FREEBSD_STACK)
 482         phi_init_all_network_interfaces();
 483 #else
 484         lwip_init();
 485 #endif
 486         if (!eth0_up)
 487         {
 488                 diag_printf("Network not up and running\n");
 489                 exit(-1);
 490         }
 491
 492         /* very first thing we want is a reboot capability */
 493         reboot_port();
 494
 495 #if defined(CYGPKG_NET_FREEBSD_STACK)
 496         /*start TFTP*/
 497         tftpd_start(69, &fileops);
 498 #endif
 499
 500         cyg_httpd_init_tcl_interpreter();
 501
 502         interp = httpstate.jim_interp;
 503
 504         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 505                         NULL, NULL);
 506         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 507                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 508         Jim_CreateCommand(httpstate.jim_interp, "threads",
 509                         zylinjtag_Jim_Command_threads, NULL, NULL);
 510         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 511                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 512
 513         cyg_httpd_start();
 514
 515         webRunning = true;
 516
 517         diag_printf("Web server running\n");
 518
 519         int s;
 520         struct ifreq ifr;
 521         s = socket(AF_INET, SOCK_DGRAM, 0);
 522         if (s >= 0)
 523         {
 524                 strcpy(ifr.ifr_name, "eth0");
 525                 int res;
 526                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 527                 close(s);
 528
 529                 if (res < 0)
 530                 {
 531                         diag_printf("Can't obtain MAC address\n");
 532                         reboot();
 533                 }
 534         }
 535
 536         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 537                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 538                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 539                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 540                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 541                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 542                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 543
 544         discover_message
 545                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 546
 547         discover_launch();
 548 }
 549
 550 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 551                 cyg_addrword_t info)
 552 {
 553         writeLog = false;
 554         serialLog = true;
 555         char *infoStr = "unknown";
 556         switch (exception)
 557         {
 558 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 559         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 560         infoStr = "undefined instruction";
 561         break;
 562         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 563         infoStr = "software interrupt";
 564         break;
 565         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 566         infoStr = "abort prefetch";
 567         break;
 568         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 569         infoStr = "abort data";
 570         break;
 571 #endif
 572         default:
 573                 break;
 574         }
 575
 576         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 577
 578         diag_printf("Dumping log\n---\n");
 579         if (logCount >= logSize)
 580         {
 581                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 582         }
 583         diag_write(logBuffer, writePtr);
 584
 585         diag_printf("---\nLogdump complete.\n");
 586         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 587         diag_printf("\n---\nRebooting\n");
 588         HAL_PLATFORM_RESET();
 589
 590 }
 591
 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
 601 static cyg_thread zylinjtag_uart_thread_object;
 602 static cyg_handle_t zylinjtag_uart_thread_handle;
 603 static char uart_stack[4096];
 604
 605 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 606 static char backwardBuffer[1024];
 607
 608 void setNoDelay(int session, int flag)
 609 {
 610 #if 1
 611         // This decreases latency dramatically for e.g. GDB load which
 612         // does not have a sliding window protocol
 613         //
 614         // Can cause *lots* of TCP/IP packets to be sent and it would have
 615         // to be enabled/disabled on the fly to avoid the CPU being
 616         // overloaded...
 617         setsockopt(session, /* socket affected */
 618         IPPROTO_TCP, /* set option at TCP level */
 619         TCP_NODELAY, /* name of option */
 620         (char *) &flag, /* the cast is historical
 621          cruft */
 622         sizeof(int)); /* length of option value */
 623 #endif
 624 }
 625
 626 struct
 627 {
 628         int req;
 629         int actual;
 630         int req2;
 631         int actual2;
 632 } tcpipSent[512 * 1024];
 633 int cur;
 634
 635 static void zylinjtag_uart(cyg_addrword_t data)
 636 {
 637         int so_reuseaddr_option = 1;
 638
 639         int fd;
 640         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 641         {
 642                 LOG_ERROR("error creating socket: %s", strerror(errno));
 643                 exit(-1);
 644         }
 645
 646         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 647                         sizeof(int));
 648
 649         struct sockaddr_in sin;
 650         unsigned int address_size;
 651         address_size = sizeof(sin);
 652         memset(&sin, 0, sizeof(sin));
 653         sin.sin_family = AF_INET;
 654         sin.sin_addr.s_addr = INADDR_ANY;
 655         sin.sin_port = htons(5555);
 656
 657         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 658         {
 659                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 660                 exit(-1);
 661         }
 662
 663         if (listen(fd, 1) == -1)
 664         {
 665                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 666                 exit(-1);
 667         }
 668         //      socket_nonblock(fd);
 669
 670
 671         for (;;)
 672         {
 673                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 674                 if (session < 0)
 675                 {
 676                         continue;
 677                 }
 678
 679                 setNoDelay(session, 1);
 680                 int oldopts = fcntl(session, F_GETFL, 0);
 681                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 682
 683                 int serHandle = open("/dev/ser0", O_RDWR | O_NONBLOCK);
 684                 if (serHandle < 0)
 685                 {
 686                         close(session);
 687                         continue;
 688                 }
 689
 690 #ifdef CYGPKG_PROFILE_GPROF
 691                 start_profile();
 692 #endif
 693                 size_t actual = 0;
 694                 size_t actual2 = 0;
 695                 size_t pos, pos2;
 696                 pos = 0;
 697                 pos2 = 0;
 698                 cur = 0;
 699                 for (;;)
 700                 {
 701                         fd_set write_fds;
 702                         fd_set read_fds;
 703                         FD_ZERO(&write_fds);
 704                         FD_ZERO(&read_fds);
 705                         int fd_max = -1;
 706                         FD_SET(session, &read_fds);
 707                         fd_max = session;
 708                         FD_SET(serHandle, &read_fds);
 709                         if (serHandle > fd_max)
 710                         {
 711                                 fd_max = serHandle;
 712                         }
 713                         /* Wait... */
 714
 715                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 716                         if ((actual == 0) && (actual2 == 0))
 717                         {
 718                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 719                                 if (retval <= 0)
 720                                 {
 721                                         break;
 722                                 }
 723                         }
 724
 725                         if (actual2 <= 0)
 726                         {
 727                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 728                                 int t;
 729                                 t = read(serHandle, backwardBuffer,
 730                                                 sizeof(backwardBuffer));
 731                                 actual2 = t;
 732                                 if (t < 0)
 733                                 {
 734                                         if (errno != EAGAIN)
 735                                         {
 736                                                 goto closeSession;
 737                                         }
 738                                         actual2 = 0;
 739                                 }
 740                                 pos2 = 0;
 741                         }
 742
 743                         size_t x = actual2;
 744                         size_t y = 0;
 745                         if (actual2 > 0)
 746                         {
 747                                 int written = write(session, backwardBuffer + pos2, actual2);
 748                                 if (written <= 0)
 749                                         goto closeSession;
 750                                 actual2 -= written;
 751                                 pos2 += written;
 752                                 y = written;
 753                         }
 754
 755                         if (FD_ISSET(session, &read_fds)
 756                                         && (sizeof(forwardBuffer) > actual))
 757                         {
 758                                 // NB! Here it is important that we empty the TCP/IP read buffer
 759                                 // to make transmission tick right
 760                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 761                                 pos = 0;
 762                                 int t;
 763                                 // this will block if there is no data at all
 764                                 t = read_socket(session, forwardBuffer + actual,
 765                                                 sizeof(forwardBuffer) - actual);
 766                                 if (t <= 0)
 767                                 {
 768                                         goto closeSession;
 769                                 }
 770                                 actual += t;
 771                         }
 772
 773                         int x2 = actual;
 774                         int y2 = 0;
 775                         if (actual > 0)
 776                         {
 777                                 /* Do not put things into the serial buffer if it has something to send
 778                                  * as that can cause a single byte to be sent at the time.
 779                                  *
 780                                  *
 781                                  */
 782                                 int written = write(serHandle, forwardBuffer + pos, actual);
 783                                 if (written < 0)
 784                                 {
 785                                         if (errno != EAGAIN)
 786                                         {
 787                                                 goto closeSession;
 788                                         }
 789                                         // The serial buffer is full
 790                                         written = 0;
 791                                 }
 792                                 else
 793                                 {
 794                                         actual -= written;
 795                                         pos += written;
 796                                 }
 797                                 y2 = written;
 798                         }
 799                         if (cur < 1024)
 800                         {
 801                                 tcpipSent[cur].req = x;
 802                                 tcpipSent[cur].actual = y;
 803                                 tcpipSent[cur].req2 = x2;
 804                                 tcpipSent[cur].actual2 = y2;
 805                                 cur++;
 806                         }
 807
 808                 }
 809                 closeSession: close(session);
 810                 close(serHandle);
 811
 812                 int i;
 813                 for (i = 0; i < 1024; i++)
 814                 {
 815                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 816                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 817
 818                 }
 819         }
 820         close(fd);
 821
 822 }
 823
 824 void startUart(void)
 825 {
 826         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 827                         (void *) uart_stack, sizeof(uart_stack),
 828                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 829         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 830         cyg_thread_resume(zylinjtag_uart_thread_handle);
 831 }
 832
 833 int handle_uart_command(struct command_context_s *cmd_ctx, char *cmd,
 834                 char **args, int argc)
 835 {
 836         static int current_baud = 38400;
 837         if (argc == 0)
 838         {
 839                 command_print(cmd_ctx, "%d", current_baud);
 840                 return ERROR_OK;
 841         }
 842         else if (argc != 1)
 843         {
 844                 return ERROR_INVALID_ARGUMENTS;
 845         }
 846
 847         current_baud = atol(args[0]);
 848
 849         int baud;
 850         switch (current_baud)
 851         {
 852         case 9600:
 853                 baud = CYGNUM_SERIAL_BAUD_9600;
 854                 break;
 855         case 19200:
 856                 baud = CYGNUM_SERIAL_BAUD_19200;
 857                 break;
 858         case 38400:
 859                 baud = CYGNUM_SERIAL_BAUD_38400;
 860                 break;
 861         case 57600:
 862                 baud = CYGNUM_SERIAL_BAUD_57600;
 863                 break;
 864         case 115200:
 865                 baud = CYGNUM_SERIAL_BAUD_115200;
 866                 break;
 867         case 230400:
 868                 baud = CYGNUM_SERIAL_BAUD_230400;
 869                 break;
 870         default:
 871                 command_print(cmd_ctx, "unsupported baudrate");
 872                 return ERROR_INVALID_ARGUMENTS;
 873         }
 874
 875         cyg_serial_info_t buf;
 876         cyg_uint32 len = 1;
 877         //get existing serial configuration
 878         len = sizeof(cyg_serial_info_t);
 879         int err;
 880         cyg_io_handle_t serial_handle;
 881
 882         err = cyg_io_lookup("/dev/ser0", &serial_handle);
 883         if (err != ENOERR)
 884         {
 885                 LOG_ERROR("/dev/ser0 not found\n");
 886                 return ERROR_FAIL;
 887         }
 888
 889         err = cyg_io_get_config(serial_handle,
 890                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 891         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 892                         &len);
 893         if (err != ENOERR)
 894         {
 895                 command_print(cmd_ctx, "Failed to get serial port settings %d", err);
 896                 return ERROR_OK;
 897         }
 898         buf.baud = baud;
 899
 900         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 901                         &len);
 902         if (err != ENOERR)
 903         {
 904                 command_print(cmd_ctx, "Failed to set serial port settings %d", err);
 905                 return ERROR_OK;
 906         }
 907
 908         return ERROR_OK;
 909 }
 910
 911 bool logAllToSerial = false;
 912
 913
 914 int boolParam(char *var);
 915
 916
 917 command_context_t *setup_command_handler(void);
 918
 919 static const char *zylin_config_dir="/config/settings";
 920
 921 static int add_default_dirs(void)
 922 {
 923         add_script_search_dir(zylin_config_dir);
 924         add_script_search_dir("/rom/lib/openocd");
 925         add_script_search_dir("/rom");
 926         return ERROR_OK;
 927 }
 928
 929 int ioutil_init(struct command_context_s *cmd_ctx);
 930
 931 int main(int argc, char *argv[])
 932 {
 933         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 934          * need to allocate towards the end of the heap.  */
 935
 936 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 937         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 938         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 939         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 940 #endif
 941
 942         int err;
 943
 944         atexit(keep_webserver);
 945
 946         diag_init_putc(_zylinjtag_diag_write_char);
 947         // We want this in the log.
 948         diag_printf("Zylin ZY1000.\n");
 949
 950         err = mount("", "/ram", "ramfs");
 951         if (err < 0)
 952         {
 953                 diag_printf("unable to mount ramfs\n");
 954         }
 955         chdir("/ram");
 956
 957         char address[16];
 958         sprintf(address, "%p", &filedata[0]);
 959         err = mount(address, "/rom", "romfs");
 960         if (err < 0)
 961         {
 962                 diag_printf("unable to mount /rom\n");
 963         }
 964
 965         err = mount("", "/log", "logfs");
 966         if (err < 0)
 967         {
 968                 diag_printf("unable to mount logfs\n");
 969         }
 970
 971         err = mount("", "/tftp", "tftpfs");
 972         if (err < 0)
 973         {
 974                 diag_printf("unable to mount logfs\n");
 975         }
 976
 977         log = fopen("/log/log", "w");
 978         if (log == NULL)
 979         {
 980                 diag_printf("Could not open log file /ram/log\n");
 981                 exit(-1);
 982         }
 983
 984
 985         copydir("/rom", "/ram/cgi");
 986
 987         err = mount("/dev/flash1", "/config", "jffs2");
 988         if (err < 0)
 989         {
 990                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
 991                 err = mount("", "/config", "ramfs");
 992                 if (err < 0)
 993                 {
 994                         diag_printf("unable to mount /config as ramdisk.\n");
 995                         reboot();
 996                 }
 997         }
 998         else
 999         {
1000                 /* are we using a ram disk instead of a flash disk? This is used
1001                  * for ZY1000 live demo...
1002                  *
1003                  * copy over flash disk to ram block device
1004                  */
1005                 if (boolParam("ramdisk"))
1006                 {
1007                         diag_printf("Unmounting /config from flash and using ram instead\n");
1008                         err = umount("/config");
1009                         if (err < 0)
1010                         {
1011                                 diag_printf("unable to unmount jffs\n");
1012                                 reboot();
1013                         }
1014
1015                         err = mount("/dev/flash1", "/config2", "jffs2");
1016                         if (err < 0)
1017                         {
1018                                 diag_printf("unable to mount jffs\n");
1019                                 reboot();
1020                         }
1021
1022                         err = mount("", "/config", "ramfs");
1023                         if (err < 0)
1024                         {
1025                                 diag_printf("unable to mount ram block device\n");
1026                                 reboot();
1027                         }
1028
1029                         //              copydir("/config2", "/config");
1030                         copyfile("/config2/ip", "/config/ip");
1031                         copydir("/config2/settings", "/config/settings");
1032
1033                         umount("/config2");
1034                 }
1035         }
1036
1037         mkdir(zylin_config_dir, 0777);
1038         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1039         mkdir(dirname, 0777);
1040         free(dirname);
1041         dirname = alloc_printf("%s/board", zylin_config_dir);
1042         mkdir(dirname, 0777);
1043         free(dirname);
1044         dirname = alloc_printf("%s/event", zylin_config_dir);
1045         mkdir(dirname, 0777);
1046         free(dirname);
1047
1048         logAllToSerial = boolParam("logserial");
1049
1050         // We need the network & web server in case there is something wrong with
1051         // the config files that invoke exit()
1052         zylinjtag_startNetwork();
1053
1054         /* we're going to access the jim interpreter from here on... */
1055         openocd_sleep_postlude();
1056         startUart();
1057
1058         add_default_dirs();
1059
1060         /* initialize commandline interface */
1061         command_context_t * cmd_ctx;
1062         cmd_ctx = setup_command_handler();
1063         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1064         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1065
1066 #if BUILD_IOUTIL
1067         if (ioutil_init(cmd_ctx) != ERROR_OK)
1068         {
1069                 return EXIT_FAILURE;
1070         }
1071 #endif
1072
1073
1074 #ifdef CYGPKG_PROFILE_GPROF
1075         register_command(cmd_ctx, NULL, "ecosboard_profile", eCosBoard_handle_eCosBoard_profile_command,
1076                         COMMAND_ANY, NULL);
1077 #endif
1078
1079         register_command(cmd_ctx, NULL, "uart", handle_uart_command, COMMAND_ANY,
1080                         "uart <baud>  - forward uart on port 5555");
1081
1082         int errVal;
1083         errVal = log_init(cmd_ctx);
1084         if (errVal != ERROR_OK)
1085         {
1086                 diag_printf("log_init() failed %d\n", errVal);
1087                 exit(-1);
1088         }
1089
1090         set_log_output(cmd_ctx, log);
1091
1092         LOG_DEBUG("log init complete");
1093
1094         //      diag_printf("Executing config files\n");
1095
1096         if (logAllToSerial)
1097         {
1098                 diag_printf(
1099                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1100                 command_run_line(cmd_ctx, "debug_level 3");
1101         }
1102
1103         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1104
1105         /* we MUST always run the init command as it will launch telnet sessions */
1106         command_run_line(cmd_ctx, "init");
1107
1108         // FIX!!!  Yuk!
1109         // diag_printf() is really invoked from many more places than we trust it
1110         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1111         //
1112         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1113         // fingers that it doesn't cause any crashes.
1114         diag_printf("Init complete, GDB & telnet servers launched.\n");
1115         command_set_output_handler(cmd_ctx,
1116                         zy1000_configuration_output_handler_log, NULL);
1117         if (!logAllToSerial)
1118         {
1119                 serialLog = false;
1120         }
1121
1122         /* handle network connections */
1123         server_loop(cmd_ctx);
1124         openocd_sleep_prelude();
1125
1126         /* shut server down */
1127         server_quit();
1128
1129         /* free commandline interface */
1130         command_done(cmd_ctx);
1131         umount("/config");
1132
1133         exit(0);
1134         for (;;)
1135                 ;
1136 }
1137
1138 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1139 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1140 {
1141         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1142         return 0;
1143 }
1144
1145 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1146
1147 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1148 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1149
1150 #include <pkgconf/system.h>
1151 #include <pkgconf/hal.h>
1152 #include <pkgconf/kernel.h>
1153 #include <pkgconf/io_fileio.h>
1154 #include <pkgconf/fs_rom.h>
1155
1156 #include <cyg/kernel/ktypes.h>         // base kernel types
1157 #include <cyg/infra/cyg_trac.h>        // tracing macros
1158 #include <cyg/infra/cyg_ass.h>         // assertion macros
1159 #include <cyg/fileio/fileio.h>
1160 #include <cyg/kernel/kapi.h>
1161 #include <cyg/infra/diag.h>
1162
1163 //==========================================================================
1164 // Eventually we want to eXecute In Place from the ROM in a protected
1165 // environment, so we'll need executables to be aligned to a boundary
1166 // suitable for MMU protection. A suitable boundary would be the 4k
1167 // boundary in all the CPU architectures I am currently aware of.
1168
1169 // Forward definitions
1170
1171 // Filesystem operations
1172 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1173 static int tftpfs_umount(cyg_mtab_entry *mte);
1174 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1175                 int mode, cyg_file *fte);
1176 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1177 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1178
1179 // File operations
1180 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1181 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1182 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1183
1184 //==========================================================================
1185 // Filesystem table entries
1186
1187 // -------------------------------------------------------------------------
1188 // Fstab entry.
1189 // This defines the entry in the filesystem table.
1190 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1191 // we should never block in any filesystem operations.
1192 #if 1
1193 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1194                 CYG_SYNCMODE_NONE,
1195                 tftpfs_mount,
1196                 tftpfs_umount,
1197                 tftpfs_open,
1198                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1199                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1200                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1201                 (cyg_fsop_rename *)cyg_fileio_erofs,
1202                 (cyg_fsop_link *)cyg_fileio_erofs,
1203                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1204                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1205                 (cyg_fsop_stat *)cyg_fileio_erofs,
1206                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1207                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1208 #endif
1209
1210 // -------------------------------------------------------------------------
1211 // mtab entry.
1212 // This defines a single ROMFS loaded into ROM at the configured address
1213 //
1214 // MTAB_ENTRY(rom_mte,  // structure name
1215 //              "/rom",         // mount point
1216 //              "romfs",        // FIlesystem type
1217 //              "",             // hardware device
1218 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1219 //);
1220
1221
1222 // -------------------------------------------------------------------------
1223 // File operations.
1224 // This set of file operations are used for normal open files.
1225
1226 static cyg_fileops tftpfs_fileops =
1227 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1228                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1229                 tftpfs_fo_fsync, tftpfs_fo_close,
1230                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1231                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1232                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1233
1234 // -------------------------------------------------------------------------
1235 // tftpfs_mount()
1236 // Process a mount request. This mainly finds root for the
1237 // filesystem.
1238
1239 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1240 {
1241         return ENOERR;
1242 }
1243
1244 static int tftpfs_umount(cyg_mtab_entry *mte)
1245 {
1246         return ENOERR;
1247 }
1248
1249 struct Tftp
1250 {
1251         int write;
1252         int readFile;
1253         cyg_uint8 *mem;
1254         int actual;
1255         char *server;
1256         char *file;
1257 };
1258
1259 static void freeTftp(struct Tftp *t)
1260 {
1261         if (t == NULL)
1262                 return;
1263         if (t->mem)
1264                 free(t->mem);
1265         if (t->server)
1266                 free(t->server);
1267         if (t->file)
1268                 free(t->file);
1269         free(t);
1270 }
1271
1272 static const int tftpMaxSize = 8192 * 1024;
1273 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1274                 int mode, cyg_file *file)
1275 {
1276         struct Tftp *tftp;
1277         tftp = malloc(sizeof(struct Tftp));
1278         if (tftp == NULL)
1279                 return EMFILE;
1280         memset(tftp, 0, sizeof(struct Tftp));
1281
1282         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1283         file->f_type = CYG_FILE_TYPE_FILE;
1284         file->f_ops = &tftpfs_fileops;
1285         file->f_offset = 0;
1286         file->f_data = 0;
1287         file->f_xops = 0;
1288
1289         tftp->mem = malloc(tftpMaxSize);
1290         if (tftp->mem == NULL)
1291         {
1292                 freeTftp(tftp);
1293                 return EMFILE;
1294         }
1295
1296         char *server = strchr(name, '/');
1297         if (server == NULL)
1298         {
1299                 freeTftp(tftp);
1300                 return EMFILE;
1301         }
1302
1303         tftp->server = malloc(server - name + 1);
1304         if (tftp->server == NULL)
1305         {
1306                 freeTftp(tftp);
1307                 return EMFILE;
1308         }
1309         strncpy(tftp->server, name, server - name);
1310         tftp->server[server - name] = 0;
1311
1312         tftp->file = strdup(server + 1);
1313         if (tftp->file == NULL)
1314         {
1315                 freeTftp(tftp);
1316                 return EMFILE;
1317         }
1318
1319         file->f_data = (CYG_ADDRWORD) tftp;
1320
1321         return ENOERR;
1322 }
1323
1324 static int fetchTftp(struct Tftp *tftp)
1325 {
1326         if (!tftp->readFile)
1327         {
1328                 int err;
1329                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1330                                 tftpMaxSize, TFTP_OCTET, &err);
1331
1332                 if (tftp->actual < 0)
1333                 {
1334                         return EMFILE;
1335                 }
1336                 tftp->readFile = 1;
1337         }
1338         return ENOERR;
1339 }
1340
1341 // -------------------------------------------------------------------------
1342 // tftpfs_fo_write()
1343 // Read data from file.
1344
1345 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1346 {
1347         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1348
1349         if (fetchTftp(tftp) != ENOERR)
1350                 return EMFILE;
1351
1352         int i;
1353         off_t pos = fp->f_offset;
1354         int resid = 0;
1355         for (i = 0; i < uio->uio_iovcnt; i++)
1356         {
1357                 cyg_iovec *iov = &uio->uio_iov[i];
1358                 char *buf = (char *) iov->iov_base;
1359                 off_t len = iov->iov_len;
1360
1361                 if (len + pos > tftp->actual)
1362                 {
1363                         len = tftp->actual - pos;
1364                 }
1365                 resid += iov->iov_len - len;
1366
1367                 memcpy(buf, tftp->mem + pos, len);
1368                 pos += len;
1369
1370         }
1371         uio->uio_resid = resid;
1372         fp->f_offset = pos;
1373
1374         return ENOERR;
1375 }
1376
1377 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1378 {
1379         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1380
1381         int i;
1382         off_t pos = fp->f_offset;
1383         int resid = 0;
1384         for (i = 0; i < uio->uio_iovcnt; i++)
1385         {
1386                 cyg_iovec *iov = &uio->uio_iov[i];
1387                 char *buf = (char *) iov->iov_base;
1388                 off_t len = iov->iov_len;
1389
1390                 if (len + pos > tftpMaxSize)
1391                 {
1392                         len = tftpMaxSize - pos;
1393                 }
1394                 resid += iov->iov_len - len;
1395
1396                 memcpy(tftp->mem + pos, buf, len);
1397                 pos += len;
1398
1399         }
1400         uio->uio_resid = resid;
1401         fp->f_offset = pos;
1402
1403         tftp->write = 1;
1404
1405         return ENOERR;
1406 }
1407
1408 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1409 {
1410         int error = ENOERR;
1411         return error;
1412 }
1413
1414 // -------------------------------------------------------------------------
1415 // romfs_fo_close()
1416 // Close a file. We just clear out the data pointer.
1417
1418 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1419 {
1420         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1421         int error = ENOERR;
1422
1423         if (tftp->write)
1424         {
1425                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1426                                 TFTP_OCTET, &error);
1427         }
1428
1429         freeTftp(tftp);
1430         fp->f_data = 0;
1431         return error;
1432 }
1433
1434 // -------------------------------------------------------------------------
1435 // romfs_fo_lseek()
1436 // Seek to a new file position.
1437
1438 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1439 {
1440         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1441         off_t pos = *apos;
1442
1443         if (fetchTftp(tftp) != ENOERR)
1444                 return EMFILE;
1445
1446         switch (whence)
1447         {
1448         case SEEK_SET:
1449                 // Pos is already where we want to be.
1450                 break;
1451
1452         case SEEK_CUR:
1453                 // Add pos to current offset.
1454                 pos += fp->f_offset;
1455                 break;
1456
1457         case SEEK_END:
1458                 // Add pos to file size.
1459                 pos += tftp->actual;
1460                 break;
1461
1462         default:
1463                 return EINVAL;
1464         }
1465
1466         // Check that pos is still within current file size, or at the
1467         // very end.
1468         if (pos < 0 || pos > tftp->actual)
1469                 return EINVAL;
1470
1471         // All OK, set fp offset and return new position.
1472         *apos = fp->f_offset = pos;
1473
1474         return ENOERR;
1475 }
1476
1477 void usleep(int us)
1478 {
1479         if (us > 10000)
1480                 cyg_thread_delay(us / 10000 + 1);
1481         else
1482                 HAL_DELAY_US(us);
1483 }
1484
1485 // Chunked version.
1486 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1487 {
1488         cyg_httpd_start_chunked("text");
1489         if (logCount >= logSize)
1490         {
1491                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1492                                 - logCount % logSize);
1493         }
1494         cyg_httpd_write_chunked(logBuffer, writePtr);
1495         cyg_httpd_end_chunked();
1496         return -1;
1497 }
1498
1499 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1500
1501 // Filesystem operations
1502 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1503 static int logfs_umount(cyg_mtab_entry *mte);
1504 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1505                 int mode, cyg_file *fte);
1506 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1507
1508 // File operations
1509 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1510 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1511
1512 #include <cyg/io/devtab.h>
1513
1514 //==========================================================================
1515 // Filesystem table entries
1516
1517 // -------------------------------------------------------------------------
1518 // Fstab entry.
1519 // This defines the entry in the filesystem table.
1520 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1521 // we should never block in any filesystem operations.
1522 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1523                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1524                 logfs_mount,
1525                 logfs_umount,
1526                 logfs_open,
1527                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1528                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1529                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1530                 (cyg_fsop_rename *)cyg_fileio_erofs,
1531                 (cyg_fsop_link *)cyg_fileio_erofs,
1532                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1533                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1534                 (cyg_fsop_stat *)cyg_fileio_erofs,
1535                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1536                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1537
1538 // -------------------------------------------------------------------------
1539 // File operations.
1540 // This set of file operations are used for normal open files.
1541
1542 static cyg_fileops logfs_fileops =
1543 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1544                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1545                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1546                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1547                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1548                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1549
1550 // -------------------------------------------------------------------------
1551 // logfs_mount()
1552 // Process a mount request. This mainly finds root for the
1553 // filesystem.
1554
1555 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1556 {
1557         return ENOERR;
1558 }
1559
1560 static int logfs_umount(cyg_mtab_entry *mte)
1561 {
1562         return ENOERR;
1563 }
1564
1565 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1566                 int mode, cyg_file *file)
1567 {
1568         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1569         file->f_type = CYG_FILE_TYPE_FILE;
1570         file->f_ops = &logfs_fileops;
1571         file->f_offset = 0;
1572         file->f_data = 0;
1573         file->f_xops = 0;
1574         return ENOERR;
1575 }
1576
1577 // -------------------------------------------------------------------------
1578 // logfs_fo_write()
1579 // Write data to file.
1580
1581 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1582 {
1583         int i;
1584         for (i = 0; i < uio->uio_iovcnt; i++)
1585         {
1586                 cyg_iovec *iov = &uio->uio_iov[i];
1587                 char *buf = (char *) iov->iov_base;
1588                 off_t len = iov->iov_len;
1589
1590                 diag_write(buf, len);
1591         }
1592         uio->uio_resid = 0;
1593
1594         return ENOERR;
1595 }
1596 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1597 {
1598         return ENOERR;
1599 }
1600
1601 // -------------------------------------------------------------------------
1602 // romfs_fo_close()
1603 // Close a file. We just clear out the data pointer.
1604
1605 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1606 {
1607         return ENOERR;
1608 }
1609
1610 int loadFile(const char *fileName, void **data, int *len);
1611
1612 /* boolean parameter stored on config */
1613 int boolParam(char *var)
1614 {
1615         bool result = false;
1616         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1617         if (name == NULL)
1618                 return result;
1619
1620         void *data;
1621         int len;
1622         if (loadFile(name, &data, &len) == ERROR_OK)
1623         {
1624                 if (len > 1)
1625                         len = 1;
1626                 result = strncmp((char *) data, "1", len) == 0;
1627                 free(data);
1628         }
1629         free(name);
1630         return result;
1631 }
1632