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   1 /***************************************************************************
   2  *   Copyright (C) 2007-2008 by Øyvind Harboe                              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "log.h"
  25 #include "types.h"
  26 #include "jtag.h"
  27 #include "configuration.h"
  28 #include "xsvf.h"
  29 #include "svf.h"
  30 #include "target.h"
  31 #include "flash.h"
  32 #include "nand.h"
  33 #include "pld.h"
  34
  35 #include "command.h"
  36 #include "server.h"
  37 #include "telnet_server.h"
  38 #include "gdb_server.h"
  39
  40 #include <time_support.h>
  41 #include <sys/time.h>
  42 #include <stdio.h>
  43 #include <stdlib.h>
  44 #include <string.h>
  45 #include <unistd.h>
  46 #include <errno.h>
  47
  48 #include <cyg/io/flash.h>
  49 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  50 #include <network.h>
  51
  52 #include <fcntl.h>
  53 #include <sys/stat.h>
  54 #include <cyg/fileio/fileio.h>
  55 #include <dirent.h>
  56 #include <cyg/athttpd/http.h>
  57 #include <cyg/athttpd/socket.h>
  58 #include <cyg/athttpd/handler.h>
  59 #include <cyg/athttpd/cgi.h>
  60 #include <cyg/athttpd/forms.h>
  61 #include <cyg/discover/discover.h>
  62 #include <cyg/hal/hal_diag.h>
  63 #include <cyg/kernel/kapi.h>
  64 #include <cyg/io/serialio.h>
  65 #include <cyg/io/io.h>
  66 #include <netinet/tcp.h>
  67 #include "rom.h"
  68 #include <sys/ioctl.h>
  69 #include <sys/socket.h>
  70 #include <netinet/in.h>
  71 #include <net/if.h>
  72 #include <arpa/inet.h>
  73 #include <sys/types.h>
  74 #include <sys/socket.h>
  75 #include <netdb.h>
  76 #include <netinet/in.h>
  77 #include <unistd.h>
  78 #include <arpa/inet.h>
  79 #include <stdio.h>
  80 #include <ifaddrs.h>
  81 #include <string.h>
  82
  83 #include <unistd.h>
  84 #include <stdio.h>
  85
  86
  87 #define MAX_IFS 64
  88 #if defined(CYGPKG_NET_FREEBSD_STACK)
  89 #include <tftp_support.h>
  90 /* posix compatibility broken*/
  91 struct tftpd_fileops fileops =
  92 {
  93         (int (*)(const char *, int))open,
  94         close,
  95         (int (*)(int, const void *, int))write,
  96         (int (*)(int, void *, int))read
  97 };
  98
  99 #endif
 100
 101
 102 void diag_write(char *buf, int len)
 103 {
 104         int j;
 105         for (j = 0; j < len; j++)
 106         {
 107                 diag_printf("%c", buf[j]);
 108         }
 109 }
 110
 111 static bool serialLog = true;
 112 static bool writeLog = true;
 113
 114 char hwaddr[512];
 115
 116
 117 extern struct flash_driver *flash_drivers[];
 118 extern struct target_type *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 *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 *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 *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 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         interp = httpstate.jim_interp;
 504
 505         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 506                         NULL, NULL);
 507         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 508                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 509         Jim_CreateCommand(httpstate.jim_interp, "threads",
 510                         zylinjtag_Jim_Command_threads, NULL, NULL);
 511         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 512                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 513
 514         cyg_httpd_start();
 515
 516         webRunning = true;
 517
 518         diag_printf("Web server running\n");
 519
 520         int s;
 521         struct ifreq ifr;
 522         s = socket(AF_INET, SOCK_DGRAM, 0);
 523         if (s >= 0)
 524         {
 525                 strcpy(ifr.ifr_name, "eth0");
 526                 int res;
 527                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 528                 close(s);
 529
 530                 if (res < 0)
 531                 {
 532                         diag_printf("Can't obtain MAC address\n");
 533                         reboot();
 534                 }
 535         }
 536
 537         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 538                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 539                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 540                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 541                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 542                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 543                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 544
 545         discover_message
 546                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 547
 548         discover_launch();
 549 }
 550
 551 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 552                 cyg_addrword_t info)
 553 {
 554         writeLog = false;
 555         serialLog = true;
 556         char *infoStr = "unknown";
 557         switch (exception)
 558         {
 559 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 560         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 561         infoStr = "undefined instruction";
 562         break;
 563         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 564         infoStr = "software interrupt";
 565         break;
 566         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 567         infoStr = "abort prefetch";
 568         break;
 569         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 570         infoStr = "abort data";
 571         break;
 572 #endif
 573         default:
 574                 break;
 575         }
 576
 577         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 578
 579         diag_printf("Dumping log\n---\n");
 580         if (logCount >= logSize)
 581         {
 582                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 583         }
 584         diag_write(logBuffer, writePtr);
 585
 586         diag_printf("---\nLogdump complete.\n");
 587         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 588         diag_printf("\n---\nRebooting\n");
 589         HAL_PLATFORM_RESET();
 590
 591 }
 592
 593 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 594 static void setHandler(cyg_code_t exception)
 595 {
 596         cyg_exception_handler_t *old_handler;
 597         cyg_addrword_t old_data;
 598
 599         cyg_exception_set_handler(exception, print_exception_handler, 0,
 600                         &old_handler, &old_data);
 601 }
 602 #endif
 603
 604 static cyg_thread zylinjtag_uart_thread_object;
 605 static cyg_handle_t zylinjtag_uart_thread_handle;
 606 static char uart_stack[4096];
 607
 608 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 609 static char backwardBuffer[1024];
 610
 611 void setNoDelay(int session, int flag)
 612 {
 613 #if 1
 614         // This decreases latency dramatically for e.g. GDB load which
 615         // does not have a sliding window protocol
 616         //
 617         // Can cause *lots* of TCP/IP packets to be sent and it would have
 618         // to be enabled/disabled on the fly to avoid the CPU being
 619         // overloaded...
 620         setsockopt(session, /* socket affected */
 621         IPPROTO_TCP, /* set option at TCP level */
 622         TCP_NODELAY, /* name of option */
 623         (char *) &flag, /* the cast is historical
 624          cruft */
 625         sizeof(int)); /* length of option value */
 626 #endif
 627 }
 628
 629 #define TEST_TCPIP() 0
 630
 631 #if TEST_TCPIP
 632 struct
 633 {
 634         int req;
 635         int actual;
 636         int req2;
 637         int actual2;
 638 } tcpipSent[512 * 1024];
 639 int cur;
 640 #endif
 641
 642 static void zylinjtag_uart(cyg_addrword_t data)
 643 {
 644         int so_reuseaddr_option = 1;
 645
 646         int fd;
 647         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 648         {
 649                 LOG_ERROR("error creating socket: %s", strerror(errno));
 650                 exit(-1);
 651         }
 652
 653         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 654                         sizeof(int));
 655
 656         struct sockaddr_in sin;
 657         unsigned int address_size;
 658         address_size = sizeof(sin);
 659         memset(&sin, 0, sizeof(sin));
 660         sin.sin_family = AF_INET;
 661         sin.sin_addr.s_addr = INADDR_ANY;
 662         sin.sin_port = htons(5555);
 663
 664         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 665         {
 666                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 667                 exit(-1);
 668         }
 669
 670         if (listen(fd, 1) == -1)
 671         {
 672                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 673                 exit(-1);
 674         }
 675         //      socket_nonblock(fd);
 676
 677
 678         for (;;)
 679         {
 680                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 681                 if (session < 0)
 682                 {
 683                         continue;
 684                 }
 685
 686                 setNoDelay(session, 1);
 687                 int oldopts = fcntl(session, F_GETFL, 0);
 688                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 689
 690                 int serHandle = open("/dev/ser0", O_RDWR | O_NONBLOCK);
 691                 if (serHandle < 0)
 692                 {
 693                         close(session);
 694                         continue;
 695                 }
 696
 697 #ifdef CYGPKG_PROFILE_GPROF
 698                 start_profile();
 699 #endif
 700                 size_t actual = 0;
 701                 size_t actual2 = 0;
 702                 size_t pos, pos2;
 703                 pos = 0;
 704                 pos2 = 0;
 705 #if TEST_TCPIP
 706                 cur = 0;
 707 #endif
 708                 for (;;)
 709                 {
 710                         fd_set write_fds;
 711                         fd_set read_fds;
 712                         FD_ZERO(&write_fds);
 713                         FD_ZERO(&read_fds);
 714                         int fd_max = -1;
 715                         FD_SET(session, &read_fds);
 716                         fd_max = session;
 717                         FD_SET(serHandle, &read_fds);
 718                         if (serHandle > fd_max)
 719                         {
 720                                 fd_max = serHandle;
 721                         }
 722                         /* Wait... */
 723
 724                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 725                         if ((actual == 0) && (actual2 == 0))
 726                         {
 727                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 728                                 if (retval <= 0)
 729                                 {
 730                                         break;
 731                                 }
 732                         }
 733
 734                         if (actual2 <= 0)
 735                         {
 736                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 737                                 int t;
 738                                 t = read(serHandle, backwardBuffer,
 739                                                 sizeof(backwardBuffer));
 740                                 actual2 = t;
 741                                 if (t < 0)
 742                                 {
 743                                         if (errno != EAGAIN)
 744                                         {
 745                                                 goto closeSession;
 746                                         }
 747                                         actual2 = 0;
 748                                 }
 749                                 pos2 = 0;
 750                         }
 751
 752                         size_t y = 0;
 753                         if (actual2 > 0)
 754                         {
 755                                 int written = write(session, backwardBuffer + pos2, actual2);
 756                                 if (written <= 0)
 757                                         goto closeSession;
 758                                 actual2 -= written;
 759                                 pos2 += written;
 760                                 y = written;
 761                         }
 762
 763                         if (FD_ISSET(session, &read_fds)
 764                                         && (sizeof(forwardBuffer) > actual))
 765                         {
 766                                 // NB! Here it is important that we empty the TCP/IP read buffer
 767                                 // to make transmission tick right
 768                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 769                                 pos = 0;
 770                                 int t;
 771                                 // this will block if there is no data at all
 772                                 t = read_socket(session, forwardBuffer + actual,
 773                                                 sizeof(forwardBuffer) - actual);
 774                                 if (t <= 0)
 775                                 {
 776                                         goto closeSession;
 777                                 }
 778                                 actual += t;
 779                         }
 780
 781                         int y2 = 0;
 782                         if (actual > 0)
 783                         {
 784                                 /* Do not put things into the serial buffer if it has something to send
 785                                  * as that can cause a single byte to be sent at the time.
 786                                  *
 787                                  *
 788                                  */
 789                                 int written = write(serHandle, forwardBuffer + pos, actual);
 790                                 if (written < 0)
 791                                 {
 792                                         if (errno != EAGAIN)
 793                                         {
 794                                                 goto closeSession;
 795                                         }
 796                                         // The serial buffer is full
 797                                         written = 0;
 798                                 }
 799                                 else
 800                                 {
 801                                         actual -= written;
 802                                         pos += written;
 803                                 }
 804                                 y2 = written;
 805                         }
 806 #if TEST_TCPIP
 807                         if (cur < 1024)
 808                         {
 809                                 tcpipSent[cur].req = x;
 810                                 tcpipSent[cur].actual = y;
 811                                 tcpipSent[cur].req2 = x2;
 812                                 tcpipSent[cur].actual2 = y2;
 813                                 cur++;
 814                         }
 815 #endif
 816                 }
 817                 closeSession: close(session);
 818                 close(serHandle);
 819
 820 #if TEST_TCPIP
 821                 int i;
 822                 for (i = 0; i < 1024; i++)
 823                 {
 824                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 825                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 826
 827                 }
 828 #endif
 829         }
 830         close(fd);
 831
 832 }
 833
 834 void startUart(void)
 835 {
 836         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 837                         (void *) uart_stack, sizeof(uart_stack),
 838                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 839         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 840         cyg_thread_resume(zylinjtag_uart_thread_handle);
 841 }
 842
 843 int handle_uart_command(struct command_context *cmd_ctx, char *cmd,
 844                 char **args, int argc)
 845 {
 846         static int current_baud = 38400;
 847         if (argc == 0)
 848         {
 849                 command_print(cmd_ctx, "%d", current_baud);
 850                 return ERROR_OK;
 851         }
 852         else if (argc != 1)
 853         {
 854                 return ERROR_INVALID_ARGUMENTS;
 855         }
 856
 857         current_baud = atol(args[0]);
 858
 859         int baud;
 860         switch (current_baud)
 861         {
 862         case 9600:
 863                 baud = CYGNUM_SERIAL_BAUD_9600;
 864                 break;
 865         case 19200:
 866                 baud = CYGNUM_SERIAL_BAUD_19200;
 867                 break;
 868         case 38400:
 869                 baud = CYGNUM_SERIAL_BAUD_38400;
 870                 break;
 871         case 57600:
 872                 baud = CYGNUM_SERIAL_BAUD_57600;
 873                 break;
 874         case 115200:
 875                 baud = CYGNUM_SERIAL_BAUD_115200;
 876                 break;
 877         case 230400:
 878                 baud = CYGNUM_SERIAL_BAUD_230400;
 879                 break;
 880         default:
 881                 command_print(cmd_ctx, "unsupported baudrate");
 882                 return ERROR_INVALID_ARGUMENTS;
 883         }
 884
 885         cyg_serial_info_t buf;
 886         cyg_uint32 len = 1;
 887         //get existing serial configuration
 888         len = sizeof(cyg_serial_info_t);
 889         int err;
 890         cyg_io_handle_t serial_handle;
 891
 892         err = cyg_io_lookup("/dev/ser0", &serial_handle);
 893         if (err != ENOERR)
 894         {
 895                 LOG_ERROR("/dev/ser0 not found\n");
 896                 return ERROR_FAIL;
 897         }
 898
 899         err = cyg_io_get_config(serial_handle,
 900                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 901         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 902                         &len);
 903         if (err != ENOERR)
 904         {
 905                 command_print(cmd_ctx, "Failed to get serial port settings %d", err);
 906                 return ERROR_OK;
 907         }
 908         buf.baud = baud;
 909
 910         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 911                         &len);
 912         if (err != ENOERR)
 913         {
 914                 command_print(cmd_ctx, "Failed to set serial port settings %d", err);
 915                 return ERROR_OK;
 916         }
 917
 918         return ERROR_OK;
 919 }
 920
 921 bool logAllToSerial = false;
 922
 923
 924 int boolParam(char *var);
 925
 926
 927 struct command_context *setup_command_handler(void);
 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 ioutil_init(struct command_context *cmd_ctx);
 940
 941 int main(int argc, char *argv[])
 942 {
 943         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 944          * need to allocate towards the end of the heap.  */
 945
 946 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 947         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 948         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 949         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 950 #endif
 951
 952         int err;
 953
 954         atexit(keep_webserver);
 955
 956         diag_init_putc(_zylinjtag_diag_write_char);
 957         // We want this in the log.
 958         diag_printf("Zylin ZY1000.\n");
 959
 960         err = mount("", "/ram", "ramfs");
 961         if (err < 0)
 962         {
 963                 diag_printf("unable to mount ramfs\n");
 964         }
 965         chdir("/ram");
 966
 967         char address[16];
 968         sprintf(address, "%p", &filedata[0]);
 969         err = mount(address, "/rom", "romfs");
 970         if (err < 0)
 971         {
 972                 diag_printf("unable to mount /rom\n");
 973         }
 974
 975         err = mount("", "/log", "logfs");
 976         if (err < 0)
 977         {
 978                 diag_printf("unable to mount logfs\n");
 979         }
 980
 981         err = mount("", "/tftp", "tftpfs");
 982         if (err < 0)
 983         {
 984                 diag_printf("unable to mount logfs\n");
 985         }
 986
 987         log = fopen("/log/log", "w");
 988         if (log == NULL)
 989         {
 990                 diag_printf("Could not open log file /ram/log\n");
 991                 exit(-1);
 992         }
 993
 994
 995         copydir("/rom", "/ram/cgi");
 996
 997         err = mount("/dev/flash1", "/config", "jffs2");
 998         if (err < 0)
 999         {
1000                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1001                 err = mount("", "/config", "ramfs");
1002                 if (err < 0)
1003                 {
1004                         diag_printf("unable to mount /config as ramdisk.\n");
1005                         reboot();
1006                 }
1007         }
1008         else
1009         {
1010                 /* are we using a ram disk instead of a flash disk? This is used
1011                  * for ZY1000 live demo...
1012                  *
1013                  * copy over flash disk to ram block device
1014                  */
1015                 if (boolParam("ramdisk"))
1016                 {
1017                         diag_printf("Unmounting /config from flash and using ram instead\n");
1018                         err = umount("/config");
1019                         if (err < 0)
1020                         {
1021                                 diag_printf("unable to unmount jffs\n");
1022                                 reboot();
1023                         }
1024
1025                         err = mount("/dev/flash1", "/config2", "jffs2");
1026                         if (err < 0)
1027                         {
1028                                 diag_printf("unable to mount jffs\n");
1029                                 reboot();
1030                         }
1031
1032                         err = mount("", "/config", "ramfs");
1033                         if (err < 0)
1034                         {
1035                                 diag_printf("unable to mount ram block device\n");
1036                                 reboot();
1037                         }
1038
1039                         //              copydir("/config2", "/config");
1040                         copyfile("/config2/ip", "/config/ip");
1041                         copydir("/config2/settings", "/config/settings");
1042
1043                         umount("/config2");
1044                 }
1045         }
1046
1047         mkdir(zylin_config_dir, 0777);
1048         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1049         mkdir(dirname, 0777);
1050         free(dirname);
1051         dirname = alloc_printf("%s/board", zylin_config_dir);
1052         mkdir(dirname, 0777);
1053         free(dirname);
1054         dirname = alloc_printf("%s/event", zylin_config_dir);
1055         mkdir(dirname, 0777);
1056         free(dirname);
1057
1058         logAllToSerial = boolParam("logserial");
1059
1060         // We need the network & web server in case there is something wrong with
1061         // the config files that invoke exit()
1062         zylinjtag_startNetwork();
1063
1064         /* we're going to access the jim interpreter from here on... */
1065         openocd_sleep_postlude();
1066         startUart();
1067
1068         add_default_dirs();
1069
1070         /* initialize commandline interface */
1071         struct command_context * cmd_ctx;
1072         cmd_ctx = setup_command_handler();
1073         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1074         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1075
1076 #if BUILD_IOUTIL
1077         if (ioutil_init(cmd_ctx) != ERROR_OK)
1078         {
1079                 return EXIT_FAILURE;
1080         }
1081 #endif
1082
1083
1084 #ifdef CYGPKG_PROFILE_GPROF
1085         register_command(cmd_ctx, NULL, "ecosboard_profile", eCosBoard_handle_eCosBoard_profile_command,
1086                         COMMAND_ANY, NULL);
1087 #endif
1088
1089         register_command(cmd_ctx, NULL, "uart", handle_uart_command, COMMAND_ANY,
1090                         "uart <baud>  - forward uart on port 5555");
1091
1092         int errVal;
1093         errVal = log_init(cmd_ctx);
1094         if (errVal != ERROR_OK)
1095         {
1096                 diag_printf("log_init() failed %d\n", errVal);
1097                 exit(-1);
1098         }
1099
1100         set_log_output(cmd_ctx, log);
1101
1102         LOG_DEBUG("log init complete");
1103
1104         //      diag_printf("Executing config files\n");
1105
1106         if (logAllToSerial)
1107         {
1108                 diag_printf(
1109                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1110                 command_run_line(cmd_ctx, "debug_level 3");
1111         }
1112
1113         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1114
1115         /* we MUST always run the init command as it will launch telnet sessions */
1116         command_run_line(cmd_ctx, "init");
1117
1118         // FIX!!!  Yuk!
1119         // diag_printf() is really invoked from many more places than we trust it
1120         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1121         //
1122         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1123         // fingers that it doesn't cause any crashes.
1124         diag_printf("Init complete, GDB & telnet servers launched.\n");
1125         command_set_output_handler(cmd_ctx,
1126                         zy1000_configuration_output_handler_log, NULL);
1127         if (!logAllToSerial)
1128         {
1129                 serialLog = false;
1130         }
1131
1132         /* handle network connections */
1133         server_loop(cmd_ctx);
1134         openocd_sleep_prelude();
1135
1136         /* shut server down */
1137         server_quit();
1138
1139         /* free commandline interface */
1140         command_done(cmd_ctx);
1141         umount("/config");
1142
1143         exit(0);
1144         for (;;)
1145                 ;
1146 }
1147
1148 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1149 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1150 {
1151         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1152         return 0;
1153 }
1154
1155 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1156
1157 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1158 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1159
1160 #include <pkgconf/system.h>
1161 #include <pkgconf/hal.h>
1162 #include <pkgconf/kernel.h>
1163 #include <pkgconf/io_fileio.h>
1164 #include <pkgconf/fs_rom.h>
1165
1166 #include <cyg/kernel/ktypes.h>         // base kernel types
1167 #include <cyg/infra/cyg_trac.h>        // tracing macros
1168 #include <cyg/infra/cyg_ass.h>         // assertion macros
1169 #include <cyg/fileio/fileio.h>
1170 #include <cyg/kernel/kapi.h>
1171 #include <cyg/infra/diag.h>
1172
1173 //==========================================================================
1174 // Eventually we want to eXecute In Place from the ROM in a protected
1175 // environment, so we'll need executables to be aligned to a boundary
1176 // suitable for MMU protection. A suitable boundary would be the 4k
1177 // boundary in all the CPU architectures I am currently aware of.
1178
1179 // Forward definitions
1180
1181 // Filesystem operations
1182 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1183 static int tftpfs_umount(cyg_mtab_entry *mte);
1184 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1185                 int mode, cyg_file *fte);
1186 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1187 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1188
1189 // File operations
1190 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1191 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1192 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1193
1194 //==========================================================================
1195 // Filesystem table entries
1196
1197 // -------------------------------------------------------------------------
1198 // Fstab entry.
1199 // This defines the entry in the filesystem table.
1200 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1201 // we should never block in any filesystem operations.
1202 #if 1
1203 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1204                 CYG_SYNCMODE_NONE,
1205                 tftpfs_mount,
1206                 tftpfs_umount,
1207                 tftpfs_open,
1208                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1209                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1210                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1211                 (cyg_fsop_rename *)cyg_fileio_erofs,
1212                 (cyg_fsop_link *)cyg_fileio_erofs,
1213                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1214                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1215                 (cyg_fsop_stat *)cyg_fileio_erofs,
1216                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1217                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1218 #endif
1219
1220 // -------------------------------------------------------------------------
1221 // mtab entry.
1222 // This defines a single ROMFS loaded into ROM at the configured address
1223 //
1224 // MTAB_ENTRY(rom_mte,  // structure name
1225 //              "/rom",         // mount point
1226 //              "romfs",        // FIlesystem type
1227 //              "",             // hardware device
1228 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1229 //);
1230
1231
1232 // -------------------------------------------------------------------------
1233 // File operations.
1234 // This set of file operations are used for normal open files.
1235
1236 static cyg_fileops tftpfs_fileops =
1237 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1238                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1239                 tftpfs_fo_fsync, tftpfs_fo_close,
1240                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1241                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1242                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1243
1244 // -------------------------------------------------------------------------
1245 // tftpfs_mount()
1246 // Process a mount request. This mainly finds root for the
1247 // filesystem.
1248
1249 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1250 {
1251         return ENOERR;
1252 }
1253
1254 static int tftpfs_umount(cyg_mtab_entry *mte)
1255 {
1256         return ENOERR;
1257 }
1258
1259 struct Tftp
1260 {
1261         int write;
1262         int readFile;
1263         cyg_uint8 *mem;
1264         int actual;
1265         char *server;
1266         char *file;
1267 };
1268
1269 static void freeTftp(struct Tftp *t)
1270 {
1271         if (t == NULL)
1272                 return;
1273         if (t->mem)
1274                 free(t->mem);
1275         if (t->server)
1276                 free(t->server);
1277         if (t->file)
1278                 free(t->file);
1279         free(t);
1280 }
1281
1282 static const int tftpMaxSize = 8192 * 1024;
1283 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1284                 int mode, cyg_file *file)
1285 {
1286         struct Tftp *tftp;
1287         tftp = malloc(sizeof(struct Tftp));
1288         if (tftp == NULL)
1289                 return EMFILE;
1290         memset(tftp, 0, sizeof(struct Tftp));
1291
1292         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1293         file->f_type = CYG_FILE_TYPE_FILE;
1294         file->f_ops = &tftpfs_fileops;
1295         file->f_offset = 0;
1296         file->f_data = 0;
1297         file->f_xops = 0;
1298
1299         tftp->mem = malloc(tftpMaxSize);
1300         if (tftp->mem == NULL)
1301         {
1302                 freeTftp(tftp);
1303                 return EMFILE;
1304         }
1305
1306         char *server = strchr(name, '/');
1307         if (server == NULL)
1308         {
1309                 freeTftp(tftp);
1310                 return EMFILE;
1311         }
1312
1313         tftp->server = malloc(server - name + 1);
1314         if (tftp->server == NULL)
1315         {
1316                 freeTftp(tftp);
1317                 return EMFILE;
1318         }
1319         strncpy(tftp->server, name, server - name);
1320         tftp->server[server - name] = 0;
1321
1322         tftp->file = strdup(server + 1);
1323         if (tftp->file == NULL)
1324         {
1325                 freeTftp(tftp);
1326                 return EMFILE;
1327         }
1328
1329         file->f_data = (CYG_ADDRWORD) tftp;
1330
1331         return ENOERR;
1332 }
1333
1334 static int fetchTftp(struct Tftp *tftp)
1335 {
1336         if (!tftp->readFile)
1337         {
1338                 int err;
1339                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1340                                 tftpMaxSize, TFTP_OCTET, &err);
1341
1342                 if (tftp->actual < 0)
1343                 {
1344                         return EMFILE;
1345                 }
1346                 tftp->readFile = 1;
1347         }
1348         return ENOERR;
1349 }
1350
1351 // -------------------------------------------------------------------------
1352 // tftpfs_fo_write()
1353 // Read data from file.
1354
1355 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1356 {
1357         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1358
1359         if (fetchTftp(tftp) != ENOERR)
1360                 return EMFILE;
1361
1362         int i;
1363         off_t pos = fp->f_offset;
1364         int resid = 0;
1365         for (i = 0; i < uio->uio_iovcnt; i++)
1366         {
1367                 cyg_iovec *iov = &uio->uio_iov[i];
1368                 char *buf = (char *) iov->iov_base;
1369                 off_t len = iov->iov_len;
1370
1371                 if (len + pos > tftp->actual)
1372                 {
1373                         len = tftp->actual - pos;
1374                 }
1375                 resid += iov->iov_len - len;
1376
1377                 memcpy(buf, tftp->mem + pos, len);
1378                 pos += len;
1379
1380         }
1381         uio->uio_resid = resid;
1382         fp->f_offset = pos;
1383
1384         return ENOERR;
1385 }
1386
1387 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1388 {
1389         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1390
1391         int i;
1392         off_t pos = fp->f_offset;
1393         int resid = 0;
1394         for (i = 0; i < uio->uio_iovcnt; i++)
1395         {
1396                 cyg_iovec *iov = &uio->uio_iov[i];
1397                 char *buf = (char *) iov->iov_base;
1398                 off_t len = iov->iov_len;
1399
1400                 if (len + pos > tftpMaxSize)
1401                 {
1402                         len = tftpMaxSize - pos;
1403                 }
1404                 resid += iov->iov_len - len;
1405
1406                 memcpy(tftp->mem + pos, buf, len);
1407                 pos += len;
1408
1409         }
1410         uio->uio_resid = resid;
1411         fp->f_offset = pos;
1412
1413         tftp->write = 1;
1414
1415         return ENOERR;
1416 }
1417
1418 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1419 {
1420         int error = ENOERR;
1421         return error;
1422 }
1423
1424 // -------------------------------------------------------------------------
1425 // romfs_fo_close()
1426 // Close a file. We just clear out the data pointer.
1427
1428 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1429 {
1430         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1431         int error = ENOERR;
1432
1433         if (tftp->write)
1434         {
1435                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1436                                 TFTP_OCTET, &error);
1437         }
1438
1439         freeTftp(tftp);
1440         fp->f_data = 0;
1441         return error;
1442 }
1443
1444 // -------------------------------------------------------------------------
1445 // romfs_fo_lseek()
1446 // Seek to a new file position.
1447
1448 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1449 {
1450         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1451         off_t pos = *apos;
1452
1453         if (fetchTftp(tftp) != ENOERR)
1454                 return EMFILE;
1455
1456         switch (whence)
1457         {
1458         case SEEK_SET:
1459                 // Pos is already where we want to be.
1460                 break;
1461
1462         case SEEK_CUR:
1463                 // Add pos to current offset.
1464                 pos += fp->f_offset;
1465                 break;
1466
1467         case SEEK_END:
1468                 // Add pos to file size.
1469                 pos += tftp->actual;
1470                 break;
1471
1472         default:
1473                 return EINVAL;
1474         }
1475
1476         // Check that pos is still within current file size, or at the
1477         // very end.
1478         if (pos < 0 || pos > tftp->actual)
1479                 return EINVAL;
1480
1481         // All OK, set fp offset and return new position.
1482         *apos = fp->f_offset = pos;
1483
1484         return ENOERR;
1485 }
1486
1487 void usleep(int us)
1488 {
1489         if (us > 10000)
1490                 cyg_thread_delay(us / 10000 + 1);
1491         else
1492                 HAL_DELAY_US(us);
1493 }
1494
1495 // Chunked version.
1496 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1497 {
1498         cyg_httpd_start_chunked("text");
1499         if (logCount >= logSize)
1500         {
1501                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1502                                 - logCount % logSize);
1503         }
1504         cyg_httpd_write_chunked(logBuffer, writePtr);
1505         cyg_httpd_end_chunked();
1506         return -1;
1507 }
1508
1509 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1510
1511 // Filesystem operations
1512 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1513 static int logfs_umount(cyg_mtab_entry *mte);
1514 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1515                 int mode, cyg_file *fte);
1516 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1517
1518 // File operations
1519 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1520 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1521
1522 #include <cyg/io/devtab.h>
1523
1524 //==========================================================================
1525 // Filesystem table entries
1526
1527 // -------------------------------------------------------------------------
1528 // Fstab entry.
1529 // This defines the entry in the filesystem table.
1530 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1531 // we should never block in any filesystem operations.
1532 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1533                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1534                 logfs_mount,
1535                 logfs_umount,
1536                 logfs_open,
1537                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1538                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1539                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1540                 (cyg_fsop_rename *)cyg_fileio_erofs,
1541                 (cyg_fsop_link *)cyg_fileio_erofs,
1542                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1543                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1544                 (cyg_fsop_stat *)cyg_fileio_erofs,
1545                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1546                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1547
1548 // -------------------------------------------------------------------------
1549 // File operations.
1550 // This set of file operations are used for normal open files.
1551
1552 static cyg_fileops logfs_fileops =
1553 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1554                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1555                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1556                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1557                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1558                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1559
1560 // -------------------------------------------------------------------------
1561 // logfs_mount()
1562 // Process a mount request. This mainly finds root for the
1563 // filesystem.
1564
1565 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1566 {
1567         return ENOERR;
1568 }
1569
1570 static int logfs_umount(cyg_mtab_entry *mte)
1571 {
1572         return ENOERR;
1573 }
1574
1575 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1576                 int mode, cyg_file *file)
1577 {
1578         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1579         file->f_type = CYG_FILE_TYPE_FILE;
1580         file->f_ops = &logfs_fileops;
1581         file->f_offset = 0;
1582         file->f_data = 0;
1583         file->f_xops = 0;
1584         return ENOERR;
1585 }
1586
1587 // -------------------------------------------------------------------------
1588 // logfs_fo_write()
1589 // Write data to file.
1590
1591 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1592 {
1593         int i;
1594         for (i = 0; i < uio->uio_iovcnt; i++)
1595         {
1596                 cyg_iovec *iov = &uio->uio_iov[i];
1597                 char *buf = (char *) iov->iov_base;
1598                 off_t len = iov->iov_len;
1599
1600                 diag_write(buf, len);
1601         }
1602         uio->uio_resid = 0;
1603
1604         return ENOERR;
1605 }
1606 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1607 {
1608         return ENOERR;
1609 }
1610
1611 // -------------------------------------------------------------------------
1612 // romfs_fo_close()
1613 // Close a file. We just clear out the data pointer.
1614
1615 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1616 {
1617         return ENOERR;
1618 }
1619
1620 int loadFile(const char *fileName, void **data, int *len);
1621
1622 /* boolean parameter stored on config */
1623 int boolParam(char *var)
1624 {
1625         bool result = false;
1626         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1627         if (name == NULL)
1628                 return result;
1629
1630         void *data;
1631         int len;
1632         if (loadFile(name, &data, &len) == ERROR_OK)
1633         {
1634                 if (len > 1)
1635                         len = 1;
1636                 result = strncmp((char *) data, "1", len) == 0;
1637                 free(data);
1638         }
1639         free(name);
1640         return result;
1641 }
1642