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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 "target.h"
  30 #include "flash.h"
  31 #include "nand.h"
  32 #include "pld.h"
  33
  34 #include "command.h"
  35 #include "server.h"
  36 #include "telnet_server.h"
  37 #include "gdb_server.h"
  38
  39 #include <time_support.h>
  40 #include <sys/time.h>
  41 #include <sys/types.h>
  42 #include <strings.h>
  43 #include <stdio.h>
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #include <unistd.h>
  47 #include <errno.h>
  48
  49 #include <cyg/io/flash.h>
  50 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  51 #include <network.h>
  52
  53 #include <fcntl.h>
  54 #include <sys/stat.h>
  55 #include <cyg/fileio/fileio.h>
  56 #include <dirent.h>
  57 #include <cyg/athttpd/http.h>
  58 #include <cyg/athttpd/socket.h>
  59 #include <cyg/athttpd/handler.h>
  60 #include <cyg/athttpd/cgi.h>
  61 #include <cyg/athttpd/forms.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 #define MAX_IFS 64
  86 #if defined(CYGPKG_NET_FREEBSD_STACK)
  87 #include <tftp_support.h>
  88 /* posix compatibility broken*/
  89 struct tftpd_fileops fileops =
  90 {
  91         (int (*)(const char *, int))open,
  92         close,
  93         (int (*)(int, const void *, int))write,
  94         ( int (*)(int, void *, int))read
  95 };
  96
  97 #endif
  98
  99 #define ZYLIN_VERSION "1.43"
 100 #define ZYLIN_DATE __DATE__
 101 #define ZYLIN_TIME __TIME__
 102 /* hmmm....  we can't pick up the right # during build if we've checked this out
 103  * in Eclipse... arrggghh...*/
 104 #define ZYLIN_OPENOCD 1005
 105 #define ZYLIN_OPENOCD_VERSION "Zylin JTAG ZY1000 " ZYLIN_VERSION " " ZYLIN_DATE " " ZYLIN_TIME
 106 #define ZYLIN_CONFIG_DIR "/config/settings"
 107
 108 void diag_write(char *buf, int len)
 109 {
 110         int j;
 111         for (j = 0; j < len; j++)
 112         {
 113                 diag_printf("%c", buf[j]);
 114         }
 115 }
 116
 117 static bool serialLog = true;
 118 static bool writeLog = true;
 119
 120
 121 struct FastLoad
 122 {
 123         u32 address;
 124         u8 *data;
 125         int length;
 126
 127 };
 128
 129 static int fastload_num;
 130 static struct FastLoad *fastload;
 131
 132 static void free_fastload()
 133 {
 134         if (fastload!=NULL)
 135         {
 136                 int i;
 137                 for (i=0; i<fastload_num; i++)
 138                 {
 139                         if (fastload[i].data)
 140                                 free(fastload[i].data);
 141                 }
 142                 free(fastload);
 143                 fastload=NULL;
 144         }
 145 }
 146
 147
 148 int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 149 {
 150         u8 *buffer;
 151         u32 buf_cnt;
 152         u32 image_size;
 153         u32 min_address=0;
 154         u32 max_address=0xffffffff;
 155         int i;
 156         int retval;
 157
 158         image_t image;
 159
 160         duration_t duration;
 161         char *duration_text;
 162
 163         if ((argc < 1)||(argc > 5))
 164         {
 165                 return ERROR_COMMAND_SYNTAX_ERROR;
 166         }
 167
 168         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
 169         if (argc >= 2)
 170         {
 171                 image.base_address_set = 1;
 172                 image.base_address = strtoul(args[1], NULL, 0);
 173         }
 174         else
 175         {
 176                 image.base_address_set = 0;
 177         }
 178
 179
 180         image.start_address_set = 0;
 181
 182         if (argc>=4)
 183         {
 184                 min_address=strtoul(args[3], NULL, 0);
 185         }
 186         if (argc>=5)
 187         {
 188                 max_address=strtoul(args[4], NULL, 0)+min_address;
 189         }
 190
 191         if (min_address>max_address)
 192         {
 193                 return ERROR_COMMAND_SYNTAX_ERROR;
 194         }
 195
 196         duration_start_measure(&duration);
 197
 198         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
 199         {
 200                 return ERROR_OK;
 201         }
 202
 203         image_size = 0x0;
 204         retval = ERROR_OK;
 205         fastload_num=image.num_sections;
 206         fastload=(struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
 207         if (fastload==NULL)
 208         {
 209                 image_close(&image);
 210                 return ERROR_FAIL;
 211         }
 212         memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
 213         for (i = 0; i < image.num_sections; i++)
 214         {
 215                 buffer = malloc(image.sections[i].size);
 216                 if (buffer == NULL)
 217                 {
 218                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
 219                         break;
 220                 }
 221
 222                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
 223                 {
 224                         free(buffer);
 225                         break;
 226                 }
 227
 228                 u32 offset=0;
 229                 u32 length=buf_cnt;
 230
 231
 232                 /* DANGER!!! beware of unsigned comparision here!!! */
 233
 234                 if ((image.sections[i].base_address+buf_cnt>=min_address)&&
 235                                 (image.sections[i].base_address<max_address))
 236                 {
 237                         if (image.sections[i].base_address<min_address)
 238                         {
 239                                 /* clip addresses below */
 240                                 offset+=min_address-image.sections[i].base_address;
 241                                 length-=offset;
 242                         }
 243
 244                         if (image.sections[i].base_address+buf_cnt>max_address)
 245                         {
 246                                 length-=(image.sections[i].base_address+buf_cnt)-max_address;
 247                         }
 248
 249                         fastload[i].address=image.sections[i].base_address+offset;
 250                         fastload[i].data=malloc(length);
 251                         if (fastload[i].data==NULL)
 252                         {
 253                                 free(buffer);
 254                                 break;
 255                         }
 256                         memcpy(fastload[i].data, buffer+offset, length);
 257                         fastload[i].length=length;
 258
 259                         image_size += length;
 260                         command_print(cmd_ctx, "%u byte written at address 0x%8.8x", length, image.sections[i].base_address+offset);
 261                 }
 262
 263                 free(buffer);
 264         }
 265
 266         duration_stop_measure(&duration, &duration_text);
 267         if (retval==ERROR_OK)
 268         {
 269                 command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
 270         }
 271         free(duration_text);
 272
 273         image_close(&image);
 274
 275         if (retval!=ERROR_OK)
 276         {
 277                 free_fastload();
 278         }
 279
 280         return retval;
 281 }
 282
 283 int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 284 {
 285         if (argc>0)
 286                 return ERROR_COMMAND_SYNTAX_ERROR;
 287         if (fastload==NULL)
 288         {
 289                 LOG_ERROR("No image in memory");
 290                 return ERROR_FAIL;
 291         }
 292         int i;
 293         int ms=timeval_ms();
 294         int size=0;
 295         for (i=0; i<fastload_num;i++)
 296         {
 297                 int retval;
 298                 target_t *target = get_current_target(cmd_ctx);
 299                 if ((retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data)) != ERROR_OK)
 300                 {
 301                         return retval;
 302                 }
 303                 size+=fastload[i].length;
 304         }
 305         int after=timeval_ms();
 306         command_print(cmd_ctx, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
 307         return ERROR_OK;
 308 }
 309
 310
 311 /* Give TELNET a way to find out what version this is */
 312 int handle_zy1000_version_command(struct command_context_s *cmd_ctx, char *cmd,
 313                 char **args, int argc)
 314 {
 315         if (argc > 1)
 316         {
 317                 return ERROR_COMMAND_SYNTAX_ERROR;
 318         }
 319         if (argc == 0)
 320         {
 321                 command_print(cmd_ctx, ZYLIN_OPENOCD_VERSION);
 322         } else if (strcmp("openocd", args[0])==0)
 323         {
 324                 command_print(cmd_ctx, "%d", ZYLIN_OPENOCD);
 325         } else if (strcmp("zy1000", args[0])==0)
 326         {
 327                 command_print(cmd_ctx, "%s", ZYLIN_VERSION);
 328         } else if (strcmp("date", args[0])==0)
 329         {
 330                 command_print(cmd_ctx, "%s", ZYLIN_DATE);
 331         } else
 332         {
 333                 return ERROR_COMMAND_SYNTAX_ERROR;
 334         }
 335
 336         return ERROR_OK;
 337 }
 338
 339 extern flash_driver_t *flash_drivers[];
 340 extern target_type_t *target_types[];
 341
 342 #ifdef CYGPKG_PROFILE_GPROF
 343 #include <cyg/profile/profile.h>
 344
 345 extern char _stext, _etext; // Defined by the linker
 346
 347 void start_profile(void)
 348 {
 349         // This starts up the system-wide profiling, gathering
 350         // profile information on all of the code, with a 16 byte
 351         // "bucket" size, at a rate of 100us/profile hit.
 352         // Note: a bucket size of 16 will give pretty good function
 353         //       resolution.  Much smaller and the buffer becomes
 354         //       much too large for very little gain.
 355         // Note: a timer period of 100us is also a reasonable
 356         //       compromise.  Any smaller and the overhead of
 357         //       handling the timter (profile) interrupt could
 358         //       swamp the system.  A fast processor might get
 359         //       by with a smaller value, but a slow one could
 360         //       even be swamped by this value.  If the value is
 361         //       too large, the usefulness of the profile is reduced.
 362
 363         // no more interrupts than 1/10ms.
 364         //    profile_on(&_stext, &_etext, 16, 10000); // DRAM
 365         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 366         profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 367 }
 368 #endif
 369
 370 // launch GDB server if a config file exists
 371 bool zylinjtag_parse_config_file(struct command_context_s *cmd_ctx, const char *config_file_name)
 372 {
 373         bool foundFile = false;
 374         FILE *config_file = NULL;
 375         command_print(cmd_ctx, "executing config file %s", config_file_name);
 376         config_file = fopen(config_file_name, "r");
 377         if (config_file)
 378         {
 379                 fclose(config_file);
 380                 int retval;
 381                 retval = command_run_linef(cmd_ctx, "script %s", config_file_name);
 382                 if (retval == ERROR_OK)
 383                 {
 384                         foundFile = true;
 385                 }
 386                 else
 387                 {
 388                         command_print(cmd_ctx, "Failed executing %s %d", config_file_name, retval);
 389                 }
 390         }
 391         else
 392         {
 393                 command_print(cmd_ctx, "No %s found", config_file_name);
 394         }
 395
 396         return foundFile;
 397 }
 398
 399 extern int eth0_up;
 400 static FILE *log;
 401
 402 static char reboot_stack[2048];
 403
 404
 405 static void
 406 zylinjtag_reboot(cyg_addrword_t data)
 407 {
 408         serialLog = true;
 409         diag_printf("Rebooting in 100 ticks..\n");
 410         cyg_thread_delay(100);
 411         diag_printf("Unmounting /config..\n");
 412         umount("/config");
 413         diag_printf("Rebooting..\n");
 414         HAL_PLATFORM_RESET();
 415 }
 416 static cyg_thread zylinjtag_thread_object;
 417 static cyg_handle_t zylinjtag_thread_handle;
 418
 419 void reboot(void)
 420 {
 421     cyg_thread_create(1,
 422                       zylinjtag_reboot,
 423                       (cyg_addrword_t)0,
 424                       "reboot Thread",
 425                       (void *)reboot_stack,
 426                       sizeof(reboot_stack),
 427                       &zylinjtag_thread_handle,
 428                       &zylinjtag_thread_object);
 429         cyg_thread_resume(zylinjtag_thread_handle);
 430 }
 431
 432 int configuration_output_handler(struct command_context_s *context, const char* line)
 433 {
 434         diag_printf("%s", line);
 435
 436         return ERROR_OK;
 437 }
 438
 439 int zy1000_configuration_output_handler_log(struct command_context_s *context, const char* line)
 440 {
 441         LOG_USER_N("%s", line);
 442
 443         return ERROR_OK;
 444 }
 445
 446 int handle_rm_command(struct command_context_s *cmd_ctx, char *cmd,
 447                 char **args, int argc)
 448 {
 449         if (argc != 1)
 450         {
 451                 command_print(cmd_ctx, "rm <filename>");
 452                 return ERROR_INVALID_ARGUMENTS;
 453         }
 454
 455         if (unlink(args[0]) != 0)
 456         {
 457                 command_print(cmd_ctx, "failed: %d", errno);
 458         }
 459
 460         return ERROR_OK;
 461 }
 462
 463 int loadFile(const char *fileName, void **data, int *len);
 464
 465 int handle_cat_command(struct command_context_s *cmd_ctx, char *cmd,
 466                 char **args, int argc)
 467 {
 468         if (argc != 1)
 469         {
 470                 command_print(cmd_ctx, "cat <filename>");
 471                 return ERROR_INVALID_ARGUMENTS;
 472         }
 473
 474         // NOTE!!! we only have line printing capability so we print the entire file as a single line.
 475         void *data;
 476         int len;
 477
 478         int retval = loadFile(args[0], &data, &len);
 479         if (retval == ERROR_OK)
 480         {
 481                 command_print(cmd_ctx, "%s", data);
 482                 free(data);
 483         }
 484         else
 485         {
 486                 command_print(cmd_ctx, "%s not found %d", args[0], retval);
 487         }
 488
 489         return ERROR_OK;
 490 }
 491 int handle_trunc_command(struct command_context_s *cmd_ctx, char *cmd,
 492                 char **args, int argc)
 493 {
 494         if (argc != 1)
 495         {
 496                 command_print(cmd_ctx, "trunc <filename>");
 497                 return ERROR_INVALID_ARGUMENTS;
 498         }
 499
 500         FILE *config_file = NULL;
 501         config_file = fopen(args[0], "w");
 502         if (config_file != NULL)
 503                 fclose(config_file);
 504
 505         return ERROR_OK;
 506 }
 507
 508
 509 int handle_meminfo_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 510 {
 511         static int prev = 0;
 512         struct mallinfo info;
 513
 514         if (argc != 0)
 515         {
 516                 command_print(cmd_ctx, "meminfo");
 517                 return ERROR_INVALID_ARGUMENTS;
 518         }
 519
 520         info = mallinfo();
 521
 522         if (prev > 0)
 523         {
 524                 command_print(cmd_ctx, "Diff:            %d", prev - info.fordblks);
 525         }
 526         prev = info.fordblks;
 527
 528         command_print(cmd_ctx, "Available ram:   %d", info.fordblks );
 529
 530         return ERROR_OK;
 531 }
 532
 533 static bool savePower;
 534
 535 static void setPower(bool power)
 536 {
 537         savePower = power;
 538         if (power)
 539         {
 540                 HAL_WRITE_UINT32(0x08000014, 0x8);
 541         } else
 542         {
 543                 HAL_WRITE_UINT32(0x08000010, 0x8);
 544         }
 545 }
 546
 547 int handle_power_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 548 {
 549         if (argc > 1)
 550         {
 551                 return ERROR_INVALID_ARGUMENTS;
 552         }
 553
 554         if (argc == 1)
 555         {
 556                 if (strcmp(args[0], "on") == 0)
 557                 {
 558                         setPower(1);
 559                 }
 560                 else if (strcmp(args[0], "off") == 0)
 561                 {
 562                         setPower(0);
 563                 } else
 564                 {
 565                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
 566                         return ERROR_INVALID_ARGUMENTS;
 567                 }
 568         }
 569
 570         command_print(cmd_ctx, "Target power %s", savePower ? "on" : "off");
 571
 572         return ERROR_OK;
 573 }
 574
 575 int handle_append_command(struct command_context_s *cmd_ctx, char *cmd,
 576                 char **args, int argc)
 577 {
 578         if (argc < 1)
 579         {
 580                 command_print(cmd_ctx,
 581                                 "append <filename> [<string1>, [<string2>, ...]]");
 582                 return ERROR_INVALID_ARGUMENTS;
 583         }
 584
 585         FILE *config_file = NULL;
 586         config_file = fopen(args[0], "a");
 587         if (config_file != NULL)
 588         {
 589                 int i;
 590                 fseek(config_file, 0, SEEK_END);
 591
 592                 for (i = 1; i < argc; i++)
 593                 {
 594                         fwrite(args[i], strlen(args[i]), 1, config_file);
 595                         if (i != argc - 1)
 596                         {
 597                                 fwrite(" ", 1, 1, config_file);
 598                         }
 599                 }
 600                 fwrite("\n", 1, 1, config_file);
 601                 fclose(config_file);
 602         }
 603
 604         return ERROR_OK;
 605 }
 606
 607 extern int telnet_socket;
 608
 609 int readMore(int fd, void *data, int length)
 610 {
 611         /* used in select() */
 612         fd_set read_fds;
 613
 614         /* monitor sockets for acitvity */
 615         int fd_max = 1;
 616         FD_ZERO(&read_fds);
 617         /* listen for new connections */
 618         FD_SET(fd, &read_fds);
 619
 620         // Maximum 5 seconds.
 621         struct timeval tv;
 622         tv.tv_sec = 5;
 623         tv.tv_usec = 0;
 624
 625         int retval = select(fd_max + 1, &read_fds, NULL, NULL, &tv);
 626         if (retval == 0)
 627         {
 628                 diag_printf("Timed out waiting for binary payload\n");
 629                 return -1;
 630         }
 631         if (retval != 1)
 632                 return -1;
 633
 634         return read_socket(fd, data, length);
 635 }
 636
 637 int readAll(int fd, void *data, int length)
 638 {
 639         int pos = 0;
 640         for (;;)
 641         {
 642                 int actual = readMore(fd, ((char *) data) + pos, length - pos);
 643                 //              diag_printf("Read %d bytes(pos=%d, length=%d)\n", actual, pos, length);
 644                 if (actual <= 0)
 645                         return -1;
 646                 pos += actual;
 647                 if (pos == length)
 648                         break;
 649         }
 650         return length;
 651 }
 652
 653 int handle_peek_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 654 {
 655         cyg_uint32 value;
 656         if (argc != 1)
 657         {
 658                 return ERROR_INVALID_ARGUMENTS;
 659         }
 660         HAL_READ_UINT32(strtoul(args[0], NULL, 0), value);
 661         command_print(cmd_ctx, "0x%x : 0x%x", strtoul(args[0], NULL, 0), value);
 662         return ERROR_OK;
 663 }
 664
 665 int handle_poke_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 666 {
 667         if (argc != 2)
 668         {
 669                 return ERROR_INVALID_ARGUMENTS;
 670         }
 671         HAL_WRITE_UINT32(strtoul(args[0], NULL, 0), strtoul(args[1], NULL, 0));
 672         return ERROR_OK;
 673 }
 674
 675 int handle_cp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 676 {
 677         if (argc != 2)
 678         {
 679                 return ERROR_INVALID_ARGUMENTS;
 680         }
 681
 682         // NOTE!!! we only have line printing capability so we print the entire file as a single line.
 683         void *data;
 684         int len;
 685
 686         int retval = loadFile(args[0], &data, &len);
 687         if (retval != ERROR_OK)
 688                 return retval;
 689
 690         FILE *f = fopen(args[1], "wb");
 691         if (f == NULL)
 692                 retval = ERROR_INVALID_ARGUMENTS;
 693
 694         int pos = 0;
 695         for (;;)
 696         {
 697                 int chunk = len - pos;
 698                 static const int maxChunk = 512 * 1024; // ~1/sec
 699                 if (chunk > maxChunk)
 700                 {
 701                         chunk = maxChunk;
 702                 }
 703
 704                 if ((retval==ERROR_OK)&&(fwrite(((char *)data)+pos, 1, chunk, f)!=chunk))
 705                         retval = ERROR_INVALID_ARGUMENTS;
 706
 707                 if (retval != ERROR_OK)
 708                 {
 709                         break;
 710                 }
 711
 712                 command_print(cmd_ctx, "%d", len - pos);
 713
 714                 pos += chunk;
 715
 716                 if (pos == len)
 717                         break;
 718         }
 719
 720         if (retval == ERROR_OK)
 721         {
 722                 command_print(cmd_ctx, "Copied %s to %s", args[0], args[1]);
 723         } else
 724         {
 725                 command_print(cmd_ctx, "Failed: %d", retval);
 726         }
 727
 728         if (data != NULL)
 729                 free(data);
 730         if (f != NULL)
 731                 fclose(f);
 732
 733         if (retval != ERROR_OK)
 734                 unlink(args[1]);
 735
 736         return retval;
 737 }
 738
 739 #ifdef CYGPKG_PROFILE_GPROF
 740 extern void start_profile();
 741
 742 int eCosBoard_handle_eCosBoard_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 743 {
 744         command_print(cmd_ctx, "Profiling started");
 745         start_profile();
 746         return ERROR_OK;
 747 }
 748
 749 #endif
 750
 751 externC void phi_init_all_network_interfaces();
 752
 753 command_context_t *cmd_ctx;
 754
 755 static bool webRunning = false;
 756
 757 void keep_webserver()
 758 {
 759         // Target initialisation is only attempted at startup, so we sleep forever and
 760         // let the http server bail us out(i.e. get config files set up).
 761         diag_printf("OpenOCD has invoked exit().\n"
 762                 "Use web server to correct any configuration settings and reboot.\n");
 763         if (!webRunning)
 764                 reboot();
 765
 766         // exit() will terminate the current thread and we we'll then sleep eternally or
 767         // we'll have a reboot scheduled.
 768 }
 769
 770 extern void printDccChar(char c);
 771
 772 static char logBuffer[128 * 1024];
 773 static const int logSize = sizeof(logBuffer);
 774 int writePtr = 0;
 775 int logCount = 0;
 776
 777 void _zylinjtag_diag_write_char(char c, void **param)
 778 {
 779         if (writeLog)
 780         {
 781                 logBuffer[writePtr] = c;
 782                 writePtr = (writePtr + 1) % logSize;
 783                 logCount++;
 784         }
 785         if (serialLog)
 786         {
 787                 if (c == '\n')
 788                 {
 789                         HAL_DIAG_WRITE_CHAR('\r');
 790                 }
 791                 HAL_DIAG_WRITE_CHAR(c);
 792         }
 793
 794         printDccChar(c);
 795 }
 796
 797 #define SHOW_RESULT(a, b) diag_printf(#a " failed %d\n", (int)b)
 798
 799 #define IOSIZE 512
 800 static void copyfile(char *name2, char *name1)
 801 {
 802
 803         int err;
 804         char buf[IOSIZE];
 805         int fd1, fd2;
 806         ssize_t done, wrote;
 807
 808         fd1 = open(name1, O_WRONLY | O_CREAT);
 809         if (fd1 < 0)
 810                 SHOW_RESULT( open, fd1 );
 811
 812         fd2 = open(name2, O_RDONLY);
 813         if (fd2 < 0)
 814                 SHOW_RESULT( open, fd2 );
 815
 816         for (;;)
 817         {
 818                 done = read(fd2, buf, IOSIZE );
 819                 if (done < 0)
 820                 {
 821                         SHOW_RESULT( read, done );
 822                         break;
 823                 }
 824
 825         if( done == 0 ) break;
 826
 827                 wrote = write(fd1, buf, done);
 828         if( wrote != done ) SHOW_RESULT( write, wrote );
 829
 830         if( wrote != done ) break;
 831         }
 832
 833         err = close(fd1);
 834     if( err < 0 ) SHOW_RESULT( close, err );
 835
 836         err = close(fd2);
 837     if( err < 0 ) SHOW_RESULT( close, err );
 838
 839 }
 840 static void copydir(char *name)
 841 {
 842         int err;
 843         DIR *dirp;
 844
 845         mkdir("/ram/cgi", 0777);
 846
 847         dirp = opendir(name);
 848     if( dirp == NULL ) SHOW_RESULT( opendir, -1 );
 849
 850         for (;;)
 851         {
 852                 struct dirent *entry = readdir(dirp);
 853
 854                 if (entry == NULL)
 855                         break;
 856
 857                 if (strcmp(entry->d_name, ".") == 0)
 858                         continue;
 859                 if (strcmp(entry->d_name, "..") == 0)
 860                         continue;
 861
 862                 bool isDir = false;
 863                 struct stat buf;
 864                 char fullPath[PATH_MAX];
 865                 strncpy(fullPath, name, PATH_MAX);
 866                 strcat(fullPath, "/");
 867                 strncat(fullPath, entry->d_name, PATH_MAX - strlen(fullPath));
 868
 869                 if (stat(fullPath, &buf) == -1)
 870                 {
 871                         diag_printf("unable to read status from %s", fullPath);
 872                         break;
 873                 }
 874                 isDir = S_ISDIR(buf.st_mode) != 0;
 875
 876                 if (isDir)
 877                         continue;
 878
 879                 //        diag_printf("<INFO>: entry %14s",entry->d_name);
 880                 char fullname[PATH_MAX];
 881                 char fullname2[PATH_MAX];
 882
 883                 strcpy(fullname, name);
 884                 strcat(fullname, entry->d_name);
 885
 886                 strcpy(fullname2, "/ram/cgi/");
 887                 strcat(fullname2, entry->d_name);
 888                 //        diag_printf("from %s to %s\n", fullname, fullname2);
 889                 copyfile(fullname, fullname2);
 890
 891                 //       diag_printf("\n");
 892         }
 893
 894         err = closedir(dirp);
 895     if( err < 0 ) SHOW_RESULT( stat, err );
 896 }
 897
 898 #if 0
 899 MTAB_ENTRY( romfs_mte1,
 900                 "/rom",
 901                 "romfs",
 902                 "",
 903                 (CYG_ADDRWORD) &filedata[0] );
 904 #endif
 905
 906 void openocd_sleep_prelude()
 907 {
 908         cyg_mutex_unlock(&httpstate.jim_lock);
 909 }
 910
 911 void openocd_sleep_postlude()
 912 {
 913         cyg_mutex_lock(&httpstate.jim_lock);
 914 }
 915
 916 static int
 917 zylinjtag_Jim_Command_rm(Jim_Interp *interp,
 918                                    int argc,
 919                 Jim_Obj * const *argv)
 920 {
 921         int del;
 922         if (argc != 2)
 923         {
 924                 Jim_WrongNumArgs(interp, 1, argv, "rm ?dirorfile?");
 925                 return JIM_ERR;
 926         }
 927
 928         del = 0;
 929         if (unlink(Jim_GetString(argv[1], NULL)) == 0)
 930                 del = 1;
 931         if (rmdir(Jim_GetString(argv[1], NULL)) == 0)
 932                 del = 1;
 933
 934         return del ? JIM_OK : JIM_ERR;
 935 }
 936
 937 static int
 938 zylinjtag_Jim_Command_ls(Jim_Interp *interp,
 939                                    int argc,
 940                 Jim_Obj * const *argv)
 941 {
 942         if (argc != 2)
 943         {
 944                 Jim_WrongNumArgs(interp, 1, argv, "ls ?dir?");
 945                 return JIM_ERR;
 946         }
 947
 948         char *name = (char*) Jim_GetString(argv[1], NULL);
 949
 950         DIR *dirp = NULL;
 951         dirp = opendir(name);
 952         if (dirp == NULL)
 953         {
 954                 return JIM_ERR;
 955         }
 956         Jim_Obj *objPtr = Jim_NewListObj(interp, NULL, 0);
 957
 958         for (;;)
 959         {
 960                 struct dirent *entry = NULL;
 961                 entry = readdir(dirp);
 962                 if (entry == NULL)
 963                         break;
 964
 965                 if ((strcmp(".", entry->d_name)==0)||(strcmp("..", entry->d_name)==0))
 966                         continue;
 967
 968         Jim_ListAppendElement(interp, objPtr, Jim_NewStringObj(interp, entry->d_name, strlen(entry->d_name)));
 969         }
 970         closedir(dirp);
 971
 972         Jim_SetResult(interp, objPtr);
 973
 974         return JIM_OK;
 975 }
 976
 977
 978 static int
 979 zylinjtag_Jim_Command_getmem(Jim_Interp *interp,
 980                                    int argc,
 981                 Jim_Obj * const *argv)
 982 {
 983         if (argc != 3)
 984         {
 985                 Jim_WrongNumArgs(interp, 1, argv, "ls ?dir?");
 986                 return JIM_ERR;
 987         }
 988
 989         long address;
 990         long length;
 991         if (Jim_GetLong(interp, argv[1], &address) != JIM_OK)
 992                 return JIM_ERR;
 993         if (Jim_GetLong(interp, argv[2], &length) != JIM_OK)
 994                 return JIM_ERR;
 995
 996         if (length < 0 && length > (4096 * 1024))
 997         {
 998                 Jim_WrongNumArgs(interp, 1, argv, "getmem ?dir?");
 999                 return JIM_ERR;
1000         }
1001
1002         void *mem = malloc(length);
1003         if (mem == NULL)
1004                 return JIM_ERR;
1005
1006         target_t *target = get_current_target(cmd_ctx);
1007
1008         int retval;
1009         int size = 1;
1010         int count = length;
1011         if ((address % 4 == 0) && (count % 4 == 0))
1012         {
1013                 size = 4;
1014                 count /= 4;
1015         }
1016
1017         if ((retval  = target->type->read_memory(target, address, size, count, mem)) != ERROR_OK)
1018         {
1019                 free(mem);
1020                 return JIM_ERR;
1021         }
1022
1023         Jim_Obj *objPtr = Jim_NewStringObj(interp, mem, length);
1024         Jim_SetResult(interp, objPtr);
1025
1026         free(mem);
1027
1028         return JIM_OK;
1029 }
1030
1031 static int
1032 zylinjtag_Jim_Command_peek(Jim_Interp *interp,
1033                                    int argc,
1034                 Jim_Obj * const *argv)
1035 {
1036         if (argc != 2)
1037         {
1038                 Jim_WrongNumArgs(interp, 1, argv, "peek ?address?");
1039                 return JIM_ERR;
1040         }
1041
1042         long address;
1043         if (Jim_GetLong(interp, argv[1], &address) != JIM_OK)
1044                 return JIM_ERR;
1045
1046         int value = *((volatile int *) address);
1047
1048         Jim_SetResult(interp, Jim_NewIntObj(interp, value));
1049
1050         return JIM_OK;
1051 }
1052
1053 static int
1054 zylinjtag_Jim_Command_poke(Jim_Interp *interp,
1055                                    int argc,
1056                 Jim_Obj * const *argv)
1057 {
1058         if (argc != 3)
1059         {
1060                 Jim_WrongNumArgs(interp, 1, argv, "poke ?address? ?value?");
1061                 return JIM_ERR;
1062         }
1063
1064         long address;
1065         if (Jim_GetLong(interp, argv[1], &address) != JIM_OK)
1066                 return JIM_ERR;
1067         long value;
1068         if (Jim_GetLong(interp, argv[2], &value) != JIM_OK)
1069                 return JIM_ERR;
1070
1071         *((volatile int *) address) = value;
1072
1073         return JIM_OK;
1074 }
1075
1076
1077
1078 static int
1079 zylinjtag_Jim_Command_flash(Jim_Interp *interp,
1080                                    int argc,
1081                 Jim_Obj * const *argv)
1082 {
1083         int retval;
1084         u32 base = 0;
1085         flash_bank_t *t = get_flash_bank_by_num_noprobe(0);
1086         if (t != NULL)
1087         {
1088                 base = t->base;
1089                 retval = JIM_OK;
1090     } else
1091         {
1092                 retval = JIM_ERR;
1093         }
1094
1095         if (retval == JIM_OK)
1096         {
1097                 Jim_SetResult(interp, Jim_NewIntObj(interp, base));
1098         }
1099
1100         return retval;
1101 }
1102
1103
1104
1105
1106
1107 static int
1108 zylinjtag_Jim_Command_log(Jim_Interp *interp,
1109                                    int argc,
1110                 Jim_Obj * const *argv)
1111 {
1112         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
1113
1114         if (logCount >= logSize)
1115         {
1116         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer+logCount%logSize, logSize-logCount%logSize);
1117         }
1118         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
1119
1120         Jim_SetResult(interp, tclOutput);
1121         return JIM_OK;
1122 }
1123
1124 static int
1125 zylinjtag_Jim_Command_reboot(Jim_Interp *interp,
1126                                    int argc,
1127                 Jim_Obj * const *argv)
1128 {
1129         reboot();
1130         return JIM_OK;
1131 }
1132
1133 static int
1134 zylinjtag_Jim_Command_mac(Jim_Interp *interp,
1135                                    int argc,
1136                 Jim_Obj * const *argv)
1137 {
1138         int s;
1139         struct ifreq ifr;
1140         s = socket(AF_INET, SOCK_DGRAM, 0);
1141         if (s >= 0)
1142         {
1143                 strcpy(ifr.ifr_name, "eth0");
1144                 int res;
1145                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
1146                 close(s);
1147
1148                 if (res < 0)
1149                 {
1150                         return JIM_OK;
1151                 }
1152         }
1153
1154         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
1155
1156         char hwaddr[512];
1157         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
1158                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
1159                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
1160                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
1161                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
1162                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
1163                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
1164
1165         Jim_AppendString(httpstate.jim_interp, tclOutput, hwaddr, strlen(hwaddr));
1166
1167         Jim_SetResult(interp, tclOutput);
1168
1169         return JIM_OK;
1170 }
1171
1172 static int
1173 zylinjtag_Jim_Command_ip(Jim_Interp *interp,
1174                                    int argc,
1175                 Jim_Obj * const *argv)
1176 {
1177         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
1178
1179         struct ifaddrs *ifa = NULL, *ifp = NULL;
1180
1181         if (getifaddrs(&ifp) < 0)
1182         {
1183                 return JIM_ERR;
1184         }
1185
1186         for (ifa = ifp; ifa; ifa = ifa->ifa_next)
1187         {
1188                 char ip[200];
1189                 socklen_t salen;
1190
1191                 if (ifa->ifa_addr->sa_family == AF_INET)
1192                         salen = sizeof(struct sockaddr_in);
1193                 else if (ifa->ifa_addr->sa_family == AF_INET6)
1194                         salen = sizeof(struct sockaddr_in6);
1195                 else
1196                         continue;
1197
1198                 if (getnameinfo(ifa->ifa_addr, salen, ip, sizeof(ip), NULL, 0,
1199                                 NI_NUMERICHOST) < 0)
1200                 {
1201                         continue;
1202                 }
1203
1204                 Jim_AppendString(httpstate.jim_interp, tclOutput, ip, strlen(ip));
1205                 break;
1206
1207         }
1208
1209         freeifaddrs(ifp);
1210
1211         Jim_SetResult(interp, tclOutput);
1212
1213         return JIM_OK;
1214 }
1215
1216 extern Jim_Interp *interp;
1217
1218 static void zylinjtag_startNetwork()
1219 {
1220         // Bring TCP/IP up immediately before we're ready to accept commands.
1221         //
1222         // That is as soon as a PING responds, we're accepting telnet sessions.
1223 #if defined(CYGPKG_NET_FREEBSD_STACK)
1224         phi_init_all_network_interfaces();
1225 #else
1226         lwip_init();
1227 #endif
1228         if (!eth0_up)
1229         {
1230                 diag_printf("Network not up and running\n");
1231                 exit(-1);
1232         }
1233 #if defined(CYGPKG_NET_FREEBSD_STACK)
1234         /*start TFTP*/
1235         tftpd_start(69, &fileops);
1236 #endif
1237
1238         cyg_httpd_init_tcl_interpreter();
1239
1240         interp = httpstate.jim_interp;
1241
1242     Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log, NULL, NULL);
1243     Jim_CreateCommand(httpstate.jim_interp, "reboot", zylinjtag_Jim_Command_reboot, NULL, NULL);
1244     Jim_CreateCommand(httpstate.jim_interp, "peek", zylinjtag_Jim_Command_peek, NULL, NULL);
1245     Jim_CreateCommand(httpstate.jim_interp, "zy1000_flash", zylinjtag_Jim_Command_flash, NULL, NULL);
1246     Jim_CreateCommand(httpstate.jim_interp, "poke", zylinjtag_Jim_Command_poke, NULL, NULL);
1247     Jim_CreateCommand(httpstate.jim_interp, "ls", zylinjtag_Jim_Command_ls, NULL, NULL);
1248     Jim_CreateCommand(httpstate.jim_interp, "getmem", zylinjtag_Jim_Command_getmem, NULL, NULL);
1249     Jim_CreateCommand(httpstate.jim_interp, "mac", zylinjtag_Jim_Command_mac, NULL, NULL);
1250     Jim_CreateCommand(httpstate.jim_interp, "ip", zylinjtag_Jim_Command_ip, NULL, NULL);
1251     Jim_CreateCommand(httpstate.jim_interp, "rm", zylinjtag_Jim_Command_rm, NULL, NULL);
1252
1253         cyg_httpd_start();
1254
1255         webRunning = true;
1256
1257         diag_printf("Web server running\n");
1258 }
1259
1260 static bool readPowerDropout()
1261 {
1262         cyg_uint32 state;
1263         // sample and clear power dropout
1264         HAL_WRITE_UINT32(0x08000010, 0x80);
1265         HAL_READ_UINT32(0x08000010, state);
1266         bool powerDropout;
1267         powerDropout = (state & 0x80) != 0;
1268         return powerDropout;
1269 }
1270
1271 bool readSRST()
1272 {
1273         cyg_uint32 state;
1274         // sample and clear SRST sensing
1275         HAL_WRITE_UINT32(0x08000010, 0x00000040);
1276         HAL_READ_UINT32(0x08000010, state);
1277         bool srstAsserted;
1278         srstAsserted = (state & 0x40) != 0;
1279         return srstAsserted;
1280 }
1281
1282 // every 300ms we check for reset & powerdropout and issue a "reset halt" if
1283 // so.
1284
1285
1286 static int sense_handler(void *priv)
1287 {
1288         struct command_context_s *cmd_ctx;
1289         cmd_ctx = (struct command_context_s *) priv;
1290
1291         static bool prevSrstAsserted = false;
1292         static bool prevPowerdropout = false;
1293
1294         bool powerDropout;
1295         powerDropout = readPowerDropout();
1296
1297         bool powerRestored;
1298         powerRestored = prevPowerdropout && !powerDropout;
1299         if (powerRestored)
1300         {
1301                 LOG_USER("Sensed power restore.");
1302         }
1303
1304         cyg_tick_count_t current = cyg_current_time();
1305         static cyg_tick_count_t lastPower = 0;
1306         bool waitMore = lastPower + 200 > current;
1307         if (powerDropout && !waitMore)
1308         {
1309                 LOG_USER("Sensed power dropout.");
1310                 lastPower = current;
1311         }
1312
1313         bool srstAsserted = readSRST();
1314
1315         bool srstDeasserted;
1316         srstDeasserted = prevSrstAsserted && !srstAsserted;
1317
1318         static cyg_tick_count_t lastSrst = 0;
1319         waitMore = lastSrst + 200 > current;
1320         if (srstDeasserted && !waitMore)
1321         {
1322                 LOG_USER("Sensed nSRST deasserted");
1323                 lastSrst = current;
1324         }
1325
1326         if (!prevSrstAsserted && srstAsserted)
1327         {
1328                 LOG_USER("Sensed nSRST asserted");
1329         }
1330
1331         prevSrstAsserted = srstAsserted;
1332         prevPowerdropout = powerDropout;
1333
1334         if (srstDeasserted || powerRestored)
1335         {
1336                 /* Other than logging the event we can't do anything here.
1337                  * Issuing a reset is a particularly bad idea as we might
1338                  * be inside a reset already.
1339                  */
1340         }
1341
1342         return ERROR_OK;
1343 }
1344
1345
1346
1347 static void
1348 print_exception_handler(cyg_addrword_t data, cyg_code_t exception, cyg_addrword_t info)
1349 {
1350         writeLog = false;
1351         serialLog = true;
1352         char *infoStr = "unknown";
1353         switch (exception)
1354         {
1355         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
1356                 infoStr = "undefined instruction";
1357                 break;
1358         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
1359                 infoStr = "software interrupt";
1360                 break;
1361         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
1362                 infoStr = "abort prefetch";
1363                 break;
1364         case CYGNUM_HAL_VECTOR_ABORT_DATA:
1365                 infoStr = "abort data";
1366                 break;
1367         default:
1368                 break;
1369         }
1370
1371         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
1372
1373         diag_printf("Dumping log\n---\n");
1374         if (logCount >= logSize)
1375         {
1376                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
1377         }
1378         diag_write(logBuffer, writePtr);
1379
1380         diag_printf("---\nLogdump complete.\n");
1381         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
1382         diag_printf("\n---\nRebooting\n");
1383         HAL_PLATFORM_RESET();
1384
1385 }
1386
1387 static void setHandler(cyg_code_t exception)
1388 {
1389         cyg_exception_handler_t *old_handler;
1390         cyg_addrword_t old_data;
1391
1392         cyg_exception_set_handler(exception,
1393         print_exception_handler,
1394         0,
1395         &old_handler,
1396         &old_data);
1397 }
1398
1399 static cyg_thread zylinjtag_uart_thread_object;
1400 static cyg_handle_t zylinjtag_uart_thread_handle;
1401 static char uart_stack[4096];
1402
1403 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
1404 static char backwardBuffer[1024];
1405
1406 static cyg_io_handle_t serial_handle;
1407
1408 void setNoDelay(int session, int flag)
1409 {
1410 #if 1
1411         // This decreases latency dramatically for e.g. GDB load which
1412         // does not have a sliding window protocol
1413         //
1414         // Can cause *lots* of TCP/IP packets to be sent and it would have
1415         // to be enabled/disabled on the fly to avoid the CPU being
1416         // overloaded...
1417         setsockopt(session, /* socket affected */
1418         IPPROTO_TCP, /* set option at TCP level */
1419         TCP_NODELAY, /* name of option */
1420         (char *) &flag, /* the cast is historical
1421          cruft */
1422         sizeof(int)); /* length of option value */
1423 #endif
1424 }
1425
1426 struct
1427 {
1428         int req;
1429         int actual;
1430         int req2;
1431         int actual2;
1432 } tcpipSent[512 * 1024];
1433 int cur;
1434
1435 static void
1436 zylinjtag_uart(cyg_addrword_t data)
1437 {
1438         int so_reuseaddr_option = 1;
1439
1440         int fd;
1441         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
1442         {
1443                 LOG_ERROR("error creating socket: %s", strerror(errno));
1444                 exit(-1);
1445         }
1446
1447         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*)&so_reuseaddr_option, sizeof(int));
1448
1449         struct sockaddr_in sin;
1450         unsigned int address_size;
1451         address_size = sizeof(sin);
1452         memset(&sin, 0, sizeof(sin));
1453         sin.sin_family = AF_INET;
1454         sin.sin_addr.s_addr = INADDR_ANY;
1455         sin.sin_port = htons(5555);
1456
1457         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
1458         {
1459                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
1460                 exit(-1);
1461         }
1462
1463         if (listen(fd, 1) == -1)
1464         {
1465                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
1466                 exit(-1);
1467         }
1468         //      socket_nonblock(fd);
1469
1470
1471         for (;;)
1472         {
1473                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
1474                 if (session < 0)
1475                 {
1476                         continue;
1477                 }
1478
1479                 setNoDelay(session, 1);
1480                 int oldopts = fcntl(session, F_GETFL, 0);
1481                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
1482
1483                 int serHandle = open("/dev/ser0", O_RDWR | O_NONBLOCK);
1484                 if (serHandle < 0)
1485                 {
1486                         close(session);
1487                         continue;
1488                 }
1489
1490                 start_profile();
1491                 int actual = 0;
1492                 int actual2 = 0;
1493                 int pos, pos2;
1494                 pos = 0;
1495                 pos2 = 0;
1496                 cur = 0;
1497                 for (;;)
1498                 {
1499                         fd_set write_fds;
1500                         fd_set read_fds;
1501                         FD_ZERO(&write_fds);
1502                         FD_ZERO(&read_fds);
1503                         int fd_max = -1;
1504                         FD_SET(session, &read_fds);
1505                         fd_max = session;
1506                         FD_SET(serHandle, &read_fds);
1507                         if (serHandle > fd_max)
1508                         {
1509                                 fd_max = serHandle;
1510                         }
1511                         /* Wait... */
1512
1513                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
1514                         if ((actual == 0) && (actual2 == 0))
1515                         {
1516                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
1517                                 if (retval <= 0)
1518                                 {
1519                                         break;
1520                                 }
1521                         }
1522
1523                         if (actual2 <= 0)
1524                         {
1525                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
1526                                 actual2=read(serHandle, backwardBuffer, sizeof(backwardBuffer));
1527                                 if (actual2 < 0)
1528                                 {
1529                                         if (errno != EAGAIN)
1530                                         {
1531                                                 goto closeSession;
1532                                         }
1533                                         actual2 = 0;
1534                                 }
1535                                 pos2 = 0;
1536                         }
1537
1538                         int x = actual2;
1539                         int y = 0;
1540                         if (actual2 > 0)
1541                         {
1542                                 int written = write(session, backwardBuffer + pos2, actual2);
1543                                 if (written <= 0)
1544                                         goto closeSession;
1545                                 actual2 -= written;
1546                                 pos2 += written;
1547                                 y = written;
1548                         }
1549
1550                         if (FD_ISSET(session, &read_fds)&&(sizeof(forwardBuffer)>actual))
1551                         {
1552                                 // NB! Here it is important that we empty the TCP/IP read buffer
1553                                 // to make transmission tick right
1554                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
1555                                 pos = 0;
1556                                 int t;
1557                                 // this will block if there is no data at all
1558                                 t=read_socket(session, forwardBuffer+actual, sizeof(forwardBuffer)-actual);
1559                                 if (t <= 0)
1560                                 {
1561                                         goto closeSession;
1562                                 }
1563                                 actual += t;
1564                         }
1565
1566                         int x2 = actual;
1567                         int y2 = 0;
1568                         if (actual > 0)
1569                         {
1570                                 /* Do not put things into the serial buffer if it has something to send
1571                                  * as that can cause a single byte to be sent at the time.
1572                                  *
1573                                  *
1574                                  */
1575                                 int written = write(serHandle, forwardBuffer + pos, actual);
1576                                 if (written < 0)
1577                                 {
1578                                         if (errno != EAGAIN)
1579                                         {
1580                                                 goto closeSession;
1581                                         }
1582                                         // The serial buffer is full
1583                                         written = 0;
1584                                 } else
1585                                 {
1586                                         actual -= written;
1587                                         pos += written;
1588                                 }
1589                                 y2 = written;
1590                         }
1591                         if (cur < 1024)
1592                         {
1593                                 tcpipSent[cur].req = x;
1594                                 tcpipSent[cur].actual = y;
1595                                 tcpipSent[cur].req2 = x2;
1596                                 tcpipSent[cur].actual2 = y2;
1597                                 cur++;
1598                         }
1599
1600                 }
1601             closeSession:
1602             close(session);
1603                 close(serHandle);
1604
1605                 int i;
1606                 for (i = 0; i < 1024; i++)
1607                 {
1608                 diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual, tcpipSent[i].req2, tcpipSent[i].actual2);
1609
1610                 }
1611         }
1612         close(fd);
1613
1614 }
1615
1616 void startUart(void)
1617 {
1618     cyg_thread_create(1,
1619                       zylinjtag_uart,
1620                       (cyg_addrword_t)0,
1621                       "uart thread",
1622                       (void *)uart_stack,
1623                       sizeof(uart_stack),
1624                       &zylinjtag_uart_thread_handle,
1625                       &zylinjtag_uart_thread_object);
1626         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
1627         cyg_thread_resume(zylinjtag_uart_thread_handle);
1628 }
1629
1630
1631
1632 int handle_uart_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1633 {
1634         if (argc != 1)
1635         {
1636                 command_print(cmd_ctx, "usage: uart <baudrate>");
1637                 return ERROR_INVALID_ARGUMENTS;
1638         }
1639
1640         int baud = atol(args[0]);
1641
1642         switch (baud)
1643         {
1644         case 9600:
1645                 baud = CYGNUM_SERIAL_BAUD_9600;
1646                 break;
1647         case 19200:
1648                 baud = CYGNUM_SERIAL_BAUD_19200;
1649                 break;
1650         case 38400:
1651                 baud = CYGNUM_SERIAL_BAUD_38400;
1652                 break;
1653         case 57600:
1654                 baud = CYGNUM_SERIAL_BAUD_57600;
1655                 break;
1656         case 115200:
1657                 baud = CYGNUM_SERIAL_BAUD_115200;
1658                 break;
1659         case 230400:
1660                 baud = CYGNUM_SERIAL_BAUD_230400;
1661                 break;
1662         default:
1663                 command_print(cmd_ctx, "unsupported baudrate");
1664                 return ERROR_INVALID_ARGUMENTS;
1665         }
1666
1667         cyg_serial_info_t buf;
1668         cyg_uint32 len = 1;
1669         //get existing serial configuration
1670         len = sizeof(cyg_serial_info_t);
1671         int err;
1672         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
1673         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf, &len);
1674         if (err != ENOERR)
1675         {
1676                 command_print(cmd_ctx, "Failed to get serial port settings %d", err);
1677                 return ERROR_OK;
1678         }
1679         buf.baud = baud;
1680
1681         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf, &len);
1682         if (err != ENOERR)
1683         {
1684                 command_print(cmd_ctx, "Failed to set serial port settings %d", err);
1685                 return ERROR_OK;
1686         }
1687
1688         return ERROR_OK;
1689 }
1690
1691 bool logAllToSerial = false;
1692
1693 /* boolean parameter stored on config */
1694 bool boolParam(char *var)
1695 {
1696         bool result = false;
1697         char *name = alloc_printf(ZYLIN_CONFIG_DIR "/%s", var);
1698         if (name == NULL)
1699                 return result;
1700
1701         void *data;
1702         int len;
1703         if (loadFile(name, &data, &len) == ERROR_OK)
1704         {
1705                 if (len > 1)
1706                         len = 1;
1707                 result = strncmp((char *) data, "1", len) == 0;
1708                 free(data);
1709         }
1710         free(name);
1711         return result;
1712 }
1713
1714 command_context_t *setup_command_handler();
1715
1716 int add_default_dirs(void)
1717 {
1718         add_script_search_dir(ZYLIN_CONFIG_DIR);
1719         add_script_search_dir("/rom/lib/openocd");
1720         add_script_search_dir("/rom");
1721         return ERROR_OK;
1722 }
1723
1724 int main(int argc, char *argv[])
1725 {
1726         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
1727         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
1728         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
1729
1730         int err;
1731         err = cyg_io_lookup("/dev/ser0", &serial_handle);
1732         if (err != ENOERR)
1733         {
1734                 diag_printf("/dev/ser0 not found\n");
1735                 reboot();
1736         }
1737
1738         setPower(true); // on by default
1739
1740         atexit(keep_webserver);
1741
1742         err = mount("", "/ram", "ramfs");
1743         if (err < 0)
1744         {
1745                 diag_printf("unable to mount ramfs\n");
1746         }
1747         chdir("/ram");
1748
1749         char address[16];
1750         sprintf(address, "%p", &filedata[0]);
1751         err = mount(address, "/rom", "romfs");
1752         if (err < 0)
1753         {
1754                 diag_printf("unable to mount /rom\n");
1755         }
1756
1757         err = mount("", "/log", "logfs");
1758         if (err < 0)
1759         {
1760                 diag_printf("unable to mount logfs\n");
1761         }
1762
1763         err = mount("", "/tftp", "tftpfs");
1764         if (err < 0)
1765         {
1766                 diag_printf("unable to mount logfs\n");
1767         }
1768
1769         log = fopen("/log/log", "w");
1770         if (log == NULL)
1771         {
1772                 diag_printf("Could not open log file /ram/log\n");
1773                 exit(-1);
1774         }
1775
1776         diag_init_putc(_zylinjtag_diag_write_char);
1777
1778         // We want this in the log.
1779         diag_printf("Zylin ZY1000. Copyright Zylin AS 2007-2008.\n");
1780         diag_printf("%s\n", ZYLIN_OPENOCD_VERSION);
1781
1782         copydir("/rom/");
1783
1784         err = mount("/dev/flash1", "/config", "jffs2");
1785         if (err < 0)
1786         {
1787                 diag_printf("unable to mount jffs\n");
1788         }
1789
1790
1791         mkdir(ZYLIN_CONFIG_DIR, 0777);
1792         mkdir(ZYLIN_CONFIG_DIR "/target", 0777);
1793         mkdir(ZYLIN_CONFIG_DIR "/event", 0777);
1794
1795         logAllToSerial = boolParam("logserial");
1796
1797         // We need the network & web server in case there is something wrong with
1798         // the config files that invoke exit()
1799         zylinjtag_startNetwork();
1800
1801         /* we're going to access the jim interpreter from here on... */
1802         openocd_sleep_postlude();
1803         startUart();
1804
1805         add_default_dirs();
1806
1807         /* initialize commandline interface */
1808         command_context_t *cmd_ctx;
1809         cmd_ctx = setup_command_handler();
1810         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1811         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1812
1813
1814         register_command(cmd_ctx, NULL, "zy1000_version", handle_zy1000_version_command,
1815                         COMMAND_EXEC, "show zy1000 version numbers");
1816
1817         register_command(cmd_ctx, NULL, "rm", handle_rm_command, COMMAND_ANY,
1818                         "rm <filname>");
1819
1820         register_command(cmd_ctx, NULL, "fast_load_image", handle_fast_load_image_command, COMMAND_ANY,
1821                         "same args as load_image, image stored in memory");
1822
1823         register_command(cmd_ctx, NULL, "fast_load", handle_fast_load_command, COMMAND_ANY,
1824                         "loads active fast load image to current target");
1825
1826         register_command(cmd_ctx, NULL, "cat", handle_cat_command, COMMAND_ANY,
1827                         "cat <filname>");
1828
1829         register_command(cmd_ctx, NULL, "trunc", handle_trunc_command, COMMAND_ANY,
1830                         "trunc <filname>");
1831
1832         register_command(cmd_ctx, NULL, "append_file", handle_append_command,
1833                         COMMAND_ANY, "append <filname>");
1834
1835         register_command(cmd_ctx, NULL, "power", handle_power_command, COMMAND_ANY,
1836                         "power <on/off> - turn power switch to target on/off. No arguments - print status.");
1837
1838         register_command(cmd_ctx, NULL, "meminfo", handle_meminfo_command,
1839                         COMMAND_ANY, "meminfo");
1840
1841         register_command(cmd_ctx, NULL, "cp", handle_cp_command,
1842                                          COMMAND_ANY, "cp <from> <to>");
1843
1844 #ifdef CYGPKG_PROFILE_GPROF
1845         register_command(cmd_ctx, NULL, "ecosboard_profile", eCosBoard_handle_eCosBoard_profile_command,
1846                         COMMAND_ANY, NULL);
1847 #endif
1848         register_command(cmd_ctx, NULL, "uart", handle_uart_command,
1849                                          COMMAND_ANY, "uart <baud>  - forward uart on port 5555");
1850
1851
1852         int errVal;
1853         errVal = log_init(cmd_ctx);
1854         if (errVal != ERROR_OK)
1855         {
1856                 diag_printf("log_init() failed %d\n", errVal);
1857                 exit(-1);
1858         }
1859
1860         set_log_output(cmd_ctx, log);
1861
1862         LOG_DEBUG("log init complete");
1863
1864         //      diag_printf("Executing config files\n");
1865
1866         if (logAllToSerial)
1867         {
1868                 diag_printf(ZYLIN_CONFIG_DIR "/logserial=1 => sending log output to serial port using \"debug_level 3\" as default.\n");
1869                 command_run_line(cmd_ctx, "debug_level 3");
1870         }
1871
1872         zylinjtag_parse_config_file(cmd_ctx, "/rom/openocd.cfg");
1873
1874         target_register_timer_callback(sense_handler, 200, 1, cmd_ctx);
1875
1876         // FIX!!!  Yuk!
1877         // diag_printf() is really invoked from many more places than we trust it
1878         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1879         //
1880         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1881         // fingers that it doesn't cause any crashes.
1882         diag_printf("Init complete, GDB & telnet servers launched.\n");
1883         command_set_output_handler(cmd_ctx, zy1000_configuration_output_handler_log, NULL);
1884         if (!logAllToSerial)
1885         {
1886                 serialLog = false;
1887         }
1888
1889         /* handle network connections */
1890         server_loop(cmd_ctx);
1891         openocd_sleep_prelude();
1892
1893         /* shut server down */
1894         server_quit();
1895
1896         /* free commandline interface */
1897         command_done(cmd_ctx);
1898         umount("/config");
1899
1900         exit(0);
1901         for (;;);
1902 }
1903
1904
1905
1906 cyg_int32
1907 cyg_httpd_exec_cgi_tcl(char *file_name);
1908 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1909 {
1910         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1911         return 0;
1912 }
1913
1914 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1915
1916 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1917 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1918
1919 #include <pkgconf/system.h>
1920 #include <pkgconf/hal.h>
1921 #include <pkgconf/kernel.h>
1922 #include <pkgconf/io_fileio.h>
1923 #include <pkgconf/fs_rom.h>
1924
1925 #include <cyg/kernel/ktypes.h>         // base kernel types
1926 #include <cyg/infra/cyg_trac.h>        // tracing macros
1927 #include <cyg/infra/cyg_ass.h>         // assertion macros
1928 #include <unistd.h>
1929 #include <sys/types.h>
1930 #include <fcntl.h>
1931 #include <sys/stat.h>
1932 #include <errno.h>
1933 #include <dirent.h>
1934
1935 #include <stdarg.h>
1936 #include <stdio.h>
1937 #include <stdlib.h>
1938 #include <string.h>
1939
1940 #include <cyg/fileio/fileio.h>
1941
1942 #include <cyg/kernel/kapi.h>
1943 #include <cyg/infra/diag.h>
1944
1945 //==========================================================================
1946 // Eventually we want to eXecute In Place from the ROM in a protected
1947 // environment, so we'll need executables to be aligned to a boundary
1948 // suitable for MMU protection. A suitable boundary would be the 4k
1949 // boundary in all the CPU architectures I am currently aware of.
1950
1951 // Forward definitions
1952
1953 // Filesystem operations
1954 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1955 static int tftpfs_umount(cyg_mtab_entry *mte);
1956 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1957                 int mode, cyg_file *fte);
1958 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1959 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1960
1961 // File operations
1962 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1963 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1964 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1965
1966 //==========================================================================
1967 // Filesystem table entries
1968
1969 // -------------------------------------------------------------------------
1970 // Fstab entry.
1971 // This defines the entry in the filesystem table.
1972 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1973 // we should never block in any filesystem operations.
1974 #if 1
1975 FSTAB_ENTRY( tftpfs_fste, "tftpfs", 0,
1976                 CYG_SYNCMODE_NONE,
1977                 tftpfs_mount,
1978                 tftpfs_umount,
1979                 tftpfs_open,
1980                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1981                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1982                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1983                 (cyg_fsop_rename *)cyg_fileio_erofs,
1984                 (cyg_fsop_link *)cyg_fileio_erofs,
1985                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1986                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1987                 (cyg_fsop_stat *)cyg_fileio_erofs,
1988                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1989                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1990 #endif
1991
1992 // -------------------------------------------------------------------------
1993 // mtab entry.
1994 // This defines a single ROMFS loaded into ROM at the configured address
1995 //
1996 // MTAB_ENTRY(  rom_mte,        // structure name
1997 //              "/rom",         // mount point
1998 //              "romfs",        // FIlesystem type
1999 //              "",             // hardware device
2000 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
2001 //           );
2002
2003
2004 // -------------------------------------------------------------------------
2005 // File operations.
2006 // This set of file operations are used for normal open files.
2007
2008 static cyg_fileops tftpfs_fileops =
2009 {
2010         tftpfs_fo_read,
2011         tftpfs_fo_write,
2012         tftpfs_fo_lseek,
2013         (cyg_fileop_ioctl *)cyg_fileio_erofs,
2014     cyg_fileio_seltrue,
2015     tftpfs_fo_fsync,
2016     tftpfs_fo_close,
2017                 (cyg_fileop_fstat *) cyg_fileio_erofs,
2018                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
2019         (cyg_fileop_setinfo *)cyg_fileio_erofs,
2020 };
2021
2022 // -------------------------------------------------------------------------
2023 // tftpfs_mount()
2024 // Process a mount request. This mainly finds root for the
2025 // filesystem.
2026
2027 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
2028 {
2029         return ENOERR;
2030 }
2031
2032 static int tftpfs_umount(cyg_mtab_entry *mte)
2033 {
2034         return ENOERR;
2035 }
2036
2037 struct Tftp
2038 {
2039         int write;
2040         int readFile;
2041         cyg_uint8 *mem;
2042         int actual;
2043         char *server;
2044         char *file;
2045 };
2046
2047 static void freeTftp(struct Tftp *t)
2048 {
2049         if (t == NULL)
2050                 return;
2051         if (t->mem)
2052                 free(t->mem);
2053         if (t->server)
2054                 free(t->server);
2055         if (t->file)
2056                 free(t->file);
2057         free(t);
2058 }
2059
2060 static const int tftpMaxSize = 8192 * 1024;
2061 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
2062                 int mode, cyg_file *file)
2063 {
2064         struct Tftp *tftp;
2065         tftp = malloc(sizeof(struct Tftp));
2066         if (tftp == NULL)
2067                 return EMFILE;
2068         memset(tftp, 0, sizeof(struct Tftp));
2069
2070         file->f_flag |= mode & CYG_FILE_MODE_MASK;
2071         file->f_type = CYG_FILE_TYPE_FILE;
2072         file->f_ops = &tftpfs_fileops;
2073         file->f_offset = 0;
2074         file->f_data = 0;
2075         file->f_xops = 0;
2076
2077         tftp->mem = malloc(tftpMaxSize);
2078         if (tftp->mem == NULL)
2079         {
2080                 freeTftp(tftp);
2081                 return EMFILE;
2082         }
2083
2084         char *server = strchr(name, '/');
2085         if (server == NULL)
2086         {
2087                 freeTftp(tftp);
2088                 return EMFILE;
2089         }
2090
2091         tftp->server = malloc(server - name + 1);
2092         if (tftp->server == NULL)
2093         {
2094                 freeTftp(tftp);
2095                 return EMFILE;
2096         }
2097         strncpy(tftp->server, name, server - name);
2098         tftp->server[server - name] = 0;
2099
2100         tftp->file = strdup(server + 1);
2101         if (tftp->file == NULL)
2102         {
2103                 freeTftp(tftp);
2104                 return EMFILE;
2105         }
2106
2107         file->f_data = (CYG_ADDRWORD) tftp;
2108
2109         return ENOERR;
2110 }
2111
2112 static int fetchTftp(struct Tftp *tftp)
2113 {
2114         if (!tftp->readFile)
2115         {
2116                 int err;
2117             tftp->actual = tftp_client_get( tftp->file, tftp->server, 0, tftp->mem, tftpMaxSize,   TFTP_OCTET, &err);
2118
2119                 if (tftp->actual < 0)
2120                 {
2121                         return EMFILE;
2122                 }
2123                 tftp->readFile = 1;
2124         }
2125         return ENOERR;
2126 }
2127
2128 // -------------------------------------------------------------------------
2129 // tftpfs_fo_write()
2130 // Read data from file.
2131
2132 static int
2133 tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
2134 {
2135         struct Tftp *tftp = (struct Tftp *) fp->f_data;
2136
2137         if (fetchTftp(tftp) != ENOERR)
2138                 return EMFILE;
2139
2140         int i;
2141         off_t pos = fp->f_offset;
2142         int resid = 0;
2143         for (i = 0; i < uio->uio_iovcnt; i++)
2144         {
2145                 cyg_iovec *iov = &uio->uio_iov[i];
2146                 char *buf = (char *) iov->iov_base;
2147                 off_t len = iov->iov_len;
2148
2149                 if (len + pos > tftp->actual)
2150                 {
2151                         len = tftp->actual - pos;
2152                 }
2153                 resid += iov->iov_len - len;
2154
2155                 memcpy(buf, tftp->mem + pos, len);
2156                 pos += len;
2157
2158         }
2159         uio->uio_resid = resid;
2160         fp->f_offset = pos;
2161
2162         return ENOERR;
2163 }
2164
2165
2166 static int
2167 tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
2168 {
2169         struct Tftp *tftp = (struct Tftp *) fp->f_data;
2170
2171         int i;
2172         off_t pos = fp->f_offset;
2173         int resid = 0;
2174         for (i = 0; i < uio->uio_iovcnt; i++)
2175         {
2176                 cyg_iovec *iov = &uio->uio_iov[i];
2177                 char *buf = (char *) iov->iov_base;
2178                 off_t len = iov->iov_len;
2179
2180                 if (len + pos > tftpMaxSize)
2181                 {
2182                         len = tftpMaxSize - pos;
2183                 }
2184                 resid += iov->iov_len - len;
2185
2186                 memcpy(tftp->mem + pos, buf, len);
2187                 pos += len;
2188
2189         }
2190         uio->uio_resid = resid;
2191         fp->f_offset = pos;
2192
2193         tftp->write = 1;
2194
2195         return ENOERR;
2196 }
2197
2198 static int
2199 tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
2200 {
2201         int error = ENOERR;
2202         return error;
2203 }
2204
2205 // -------------------------------------------------------------------------
2206 // romfs_fo_close()
2207 // Close a file. We just clear out the data pointer.
2208
2209 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
2210 {
2211         struct Tftp *tftp = (struct Tftp *) fp->f_data;
2212         int error = ENOERR;
2213
2214         if (tftp->write)
2215         {
2216             tftp_client_put( tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,   TFTP_OCTET, &error);
2217         }
2218
2219         freeTftp(tftp);
2220         fp->f_data = 0;
2221         return error;
2222 }
2223
2224 // -------------------------------------------------------------------------
2225 // romfs_fo_lseek()
2226 // Seek to a new file position.
2227
2228 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
2229 {
2230         struct Tftp *tftp = (struct Tftp *) fp->f_data;
2231         off_t pos = *apos;
2232
2233         if (fetchTftp(tftp) != ENOERR)
2234                 return EMFILE;
2235
2236         switch (whence)
2237         {
2238         case SEEK_SET:
2239                 // Pos is already where we want to be.
2240                 break;
2241
2242         case SEEK_CUR:
2243                 // Add pos to current offset.
2244                 pos += fp->f_offset;
2245                 break;
2246
2247         case SEEK_END:
2248                 // Add pos to file size.
2249                 pos += tftp->actual;
2250                 break;
2251
2252         default:
2253                 return EINVAL;
2254         }
2255
2256         // Check that pos is still within current file size, or at the
2257         // very end.
2258         if (pos < 0 || pos > tftp->actual)
2259                 return EINVAL;
2260
2261         // All OK, set fp offset and return new position.
2262         *apos = fp->f_offset = pos;
2263
2264         return ENOERR;
2265 }
2266
2267 void usleep(int us)
2268 {
2269         if (us > 10000)
2270                 cyg_thread_delay(us / 10000 + 1);
2271         else
2272                 HAL_DELAY_US(us);
2273 }
2274
2275 // Chunked version.
2276 cyg_int32
2277 show_log_entry(CYG_HTTPD_STATE *phttpstate)
2278 {
2279         cyg_httpd_start_chunked("text");
2280         if (logCount >= logSize)
2281         {
2282         cyg_httpd_write_chunked(logBuffer+logCount%logSize, logSize-logCount%logSize);
2283         }
2284         cyg_httpd_write_chunked(logBuffer, writePtr);
2285         cyg_httpd_end_chunked();
2286         return -1;
2287 }
2288
2289 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
2290
2291 // Filesystem operations
2292 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
2293 static int logfs_umount(cyg_mtab_entry *mte);
2294 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
2295                 int mode, cyg_file *fte);
2296 static int
2297 logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
2298
2299 // File operations
2300 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
2301 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
2302
2303 //==========================================================================
2304 // Filesystem table entries
2305
2306 // -------------------------------------------------------------------------
2307 // Fstab entry.
2308 // This defines the entry in the filesystem table.
2309 // For simplicity we use _FILESYSTEM synchronization for all accesses since
2310 // we should never block in any filesystem operations.
2311 FSTAB_ENTRY( logfs_fste, "logfs", 0,
2312                 CYG_SYNCMODE_FILE_FILESYSTEM|CYG_SYNCMODE_IO_FILESYSTEM,
2313                 logfs_mount,
2314                 logfs_umount,
2315                 logfs_open,
2316                 (cyg_fsop_unlink *)cyg_fileio_erofs,
2317                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
2318                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
2319                 (cyg_fsop_rename *)cyg_fileio_erofs,
2320                 (cyg_fsop_link *)cyg_fileio_erofs,
2321                 (cyg_fsop_opendir *)cyg_fileio_erofs,
2322                 (cyg_fsop_chdir *)cyg_fileio_erofs,
2323                 (cyg_fsop_stat *)cyg_fileio_erofs,
2324                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
2325                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
2326
2327 // -------------------------------------------------------------------------
2328 // File operations.
2329 // This set of file operations are used for normal open files.
2330
2331 static cyg_fileops logfs_fileops =
2332 {
2333         (cyg_fileop_read *)cyg_fileio_erofs,
2334     (cyg_fileop_write *)logfs_fo_write,
2335                 (cyg_fileop_lseek *) cyg_fileio_erofs,
2336         (cyg_fileop_ioctl *)cyg_fileio_erofs,
2337     cyg_fileio_seltrue,
2338     logfs_fo_fsync,
2339     logfs_fo_close,
2340         (cyg_fileop_fstat *)cyg_fileio_erofs,
2341                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
2342         (cyg_fileop_setinfo *)cyg_fileio_erofs,
2343 };
2344
2345 // -------------------------------------------------------------------------
2346 // logfs_mount()
2347 // Process a mount request. This mainly finds root for the
2348 // filesystem.
2349
2350 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
2351 {
2352         return ENOERR;
2353 }
2354
2355 static int logfs_umount(cyg_mtab_entry *mte)
2356 {
2357         return ENOERR;
2358 }
2359
2360 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
2361                 int mode, cyg_file *file)
2362 {
2363         file->f_flag |= mode & CYG_FILE_MODE_MASK;
2364         file->f_type = CYG_FILE_TYPE_FILE;
2365         file->f_ops = &logfs_fileops;
2366         file->f_offset = 0;
2367         file->f_data = 0;
2368         file->f_xops = 0;
2369         return ENOERR;
2370 }
2371
2372 // -------------------------------------------------------------------------
2373 // logfs_fo_write()
2374 // Write data to file.
2375
2376 static int
2377 logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
2378 {
2379         int i;
2380         for (i = 0; i < uio->uio_iovcnt; i++)
2381         {
2382                 cyg_iovec *iov = &uio->uio_iov[i];
2383                 char *buf = (char *) iov->iov_base;
2384                 off_t len = iov->iov_len;
2385
2386                 diag_write(buf, len);
2387         }
2388         uio->uio_resid = 0;
2389
2390         return ENOERR;
2391 }
2392 static int
2393 logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
2394 {
2395         return ENOERR;
2396 }
2397
2398 // -------------------------------------------------------------------------
2399 // romfs_fo_close()
2400 // Close a file. We just clear out the data pointer.
2401
2402 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
2403 {
2404         return ENOERR;
2405 }