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   1 /***************************************************************************
   2  *   Copyright (C) 2007-2009 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 "types.h"
  25 #include "jtag.h"
  26 #include "configuration.h"
  27 #include "xsvf.h"
  28 #include "svf.h"
  29 #include "nand.h"
  30 #include "pld.h"
  31
  32 #include "server.h"
  33 #include "telnet_server.h"
  34 #include "gdb_server.h"
  35 #include "openocd.h"
  36
  37 #include <time_support.h>
  38 #include <sys/time.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <unistd.h>
  43 #include <errno.h>
  44
  45 #include <cyg/io/flash.h>
  46 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  47 #include <network.h>
  48
  49 #include <fcntl.h>
  50 #include <sys/stat.h>
  51 #include <cyg/fileio/fileio.h>
  52 #include <dirent.h>
  53 #include <cyg/athttpd/http.h>
  54 #include <cyg/athttpd/socket.h>
  55 #include <cyg/athttpd/handler.h>
  56 #include <cyg/athttpd/cgi.h>
  57 #include <cyg/athttpd/forms.h>
  58 #include <cyg/discover/discover.h>
  59 #include <cyg/hal/hal_diag.h>
  60 #include <cyg/kernel/kapi.h>
  61 #include <cyg/io/serialio.h>
  62 #include <cyg/io/io.h>
  63 #include <netinet/tcp.h>
  64 #include "rom.h"
  65 #include <sys/ioctl.h>
  66 #include <sys/socket.h>
  67 #include <netinet/in.h>
  68 #include <net/if.h>
  69 #include <arpa/inet.h>
  70 #include <sys/types.h>
  71 #include <sys/socket.h>
  72 #include <netdb.h>
  73 #include <netinet/in.h>
  74 #include <unistd.h>
  75 #include <arpa/inet.h>
  76 #include <stdio.h>
  77 #include <ifaddrs.h>
  78 #include <string.h>
  79
  80 #include <unistd.h>
  81 #include <stdio.h>
  82
  83 #include <openocd.h>
  84
  85 #ifdef CYGPKG_HAL_NIOS2
  86 #define ZY1000_SER_DEV "/dev/uart_0"
  87 #else
  88 #define ZY1000_SER_DEV "/dev/ser0"
  89
  90 #endif
  91
  92
  93 #define MAX_IFS 64
  94 #if defined(CYGPKG_NET_FREEBSD_STACK)
  95 #include <tftp_support.h>
  96 /* posix compatibility broken*/
  97 struct tftpd_fileops fileops =
  98 {
  99         (int (*)(const char *, int))open,
 100         close,
 101         (int (*)(int, const void *, int))write,
 102         (int (*)(int, void *, int))read
 103 };
 104
 105 #endif
 106
 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 char hwaddr[512];
 121
 122
 123 extern struct flash_driver *flash_drivers[];
 124 extern struct target_type *target_types[];
 125
 126 #ifdef CYGPKG_PROFILE_GPROF
 127 #include <cyg/profile/profile.h>
 128
 129 extern char _stext, _etext; // Defined by the linker
 130
 131 static char *start_of_code=&_stext;
 132 static char *end_of_code=&_etext;
 133
 134 void start_profile(void)
 135 {
 136         // This starts up the system-wide profiling, gathering
 137         // profile information on all of the code, with a 16 byte
 138         // "bucket" size, at a rate of 100us/profile hit.
 139         // Note: a bucket size of 16 will give pretty good function
 140         //       resolution.  Much smaller and the buffer becomes
 141         //       much too large for very little gain.
 142         // Note: a timer period of 100us is also a reasonable
 143         //       compromise.  Any smaller and the overhead of
 144         //       handling the timter (profile) interrupt could
 145         //       swamp the system.  A fast processor might get
 146         //       by with a smaller value, but a slow one could
 147         //       even be swamped by this value.  If the value is
 148         //       too large, the usefulness of the profile is reduced.
 149
 150         // no more interrupts than 1/10ms.
 151         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 152         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 153         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 154 }
 155 #endif
 156
 157 static FILE *log;
 158
 159 static char reboot_stack[2048];
 160
 161 static void zylinjtag_reboot(cyg_addrword_t data)
 162 {
 163         serialLog = true;
 164         diag_printf("Rebooting in 500 ticks..\n");
 165         cyg_thread_delay(500);
 166         diag_printf("Unmounting /config..\n");
 167         umount("/config");
 168         diag_printf("Rebooting..\n");
 169         HAL_PLATFORM_RESET();
 170 }
 171 static cyg_thread zylinjtag_thread_object;
 172 static cyg_handle_t zylinjtag_thread_handle;
 173
 174 void reboot(void)
 175 {
 176         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 177                         (void *) reboot_stack, sizeof(reboot_stack),
 178                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 179         cyg_thread_resume(zylinjtag_thread_handle);
 180 }
 181
 182 static char zylinjtag_reboot_port_stack[2048];
 183 static cyg_thread zylinjtag_reboot_port_thread_object;
 184 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 185
 186 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 187 {
 188         int so_reuseaddr_option = 1;
 189
 190         int fd;
 191         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 192         {
 193                 LOG_ERROR("error creating socket: %s", strerror(errno));
 194                 exit(-1);
 195         }
 196
 197         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 198                         sizeof(int));
 199
 200         struct sockaddr_in sin;
 201         unsigned int address_size;
 202         address_size = sizeof(sin);
 203         memset(&sin, 0, sizeof(sin));
 204         sin.sin_family = AF_INET;
 205         sin.sin_addr.s_addr = INADDR_ANY;
 206         sin.sin_port = htons(1234);
 207
 208         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 209         {
 210                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 211                 exit(-1);
 212         }
 213
 214         if (listen(fd, 1) == -1)
 215         {
 216                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 217                 exit(-1);
 218         }
 219         //      socket_nonblock(fd);
 220
 221
 222         accept(fd, (struct sockaddr *) &sin, &address_size);
 223
 224         diag_printf("Got reboot signal on port 1234");
 225
 226         reboot();
 227
 228 }
 229
 230 void reboot_port(void)
 231 {
 232         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 233                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 234                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 235         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 236 }
 237
 238 int configuration_output_handler(struct command_context *context,
 239                 const char* line)
 240 {
 241         diag_printf("%s", line);
 242
 243         return ERROR_OK;
 244 }
 245
 246 int zy1000_configuration_output_handler_log(struct command_context *context,
 247                 const char* line)
 248 {
 249         LOG_USER_N("%s", line);
 250
 251         return ERROR_OK;
 252 }
 253
 254 #ifdef CYGPKG_PROFILE_GPROF
 255
 256 int eCosBoard_handle_eCosBoard_profile_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc)
 257 {
 258         command_print(cmd_ctx, "Profiling started");
 259         start_profile();
 260         return ERROR_OK;
 261 }
 262
 263 #endif
 264
 265 externC void phi_init_all_network_interfaces(void);
 266
 267 struct command_context *cmd_ctx;
 268
 269 static bool webRunning = false;
 270
 271 void keep_webserver(void)
 272 {
 273         // Target initialisation is only attempted at startup, so we sleep forever and
 274         // let the http server bail us out(i.e. get config files set up).
 275         diag_printf("OpenOCD has invoked exit().\n"
 276                 "Use web server to correct any configuration settings and reboot.\n");
 277         if (!webRunning)
 278                 reboot();
 279
 280         // exit() will terminate the current thread and we we'll then sleep eternally or
 281         // we'll have a reboot scheduled.
 282 }
 283
 284 extern void printDccChar(char c);
 285
 286 static char logBuffer[128 * 1024];
 287 static const int logSize = sizeof(logBuffer);
 288 int writePtr = 0;
 289 int logCount = 0;
 290
 291 void _zylinjtag_diag_write_char(char c, void **param)
 292 {
 293         if (writeLog)
 294         {
 295                 logBuffer[writePtr] = c;
 296                 writePtr = (writePtr + 1) % logSize;
 297                 logCount++;
 298         }
 299         if (serialLog)
 300         {
 301                 if (c == '\n')
 302                 {
 303                         HAL_DIAG_WRITE_CHAR('\r');
 304                 }
 305                 HAL_DIAG_WRITE_CHAR(c);
 306         }
 307
 308 #ifdef CYGPKG_HAL_ZYLIN_PHI
 309         printDccChar(c);
 310 #endif
 311 }
 312
 313 void copyfile(char *name2, char *name1);
 314
 315 void copydir(char *name, char *destdir);
 316
 317 #if 0
 318 MTAB_ENTRY(romfs_mte1,
 319                 "/rom",
 320                 "romfs",
 321                 "",
 322                 (CYG_ADDRWORD) &filedata[0]);
 323 #endif
 324
 325 void openocd_sleep_prelude(void)
 326 {
 327         cyg_mutex_unlock(&httpstate.jim_lock);
 328 }
 329
 330 void openocd_sleep_postlude(void)
 331 {
 332         cyg_mutex_lock(&httpstate.jim_lock);
 333 }
 334
 335 void format(void)
 336 {
 337 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
 338         diag_printf("Formatting JFFS2...\n");
 339
 340         cyg_io_handle_t handle;
 341
 342         Cyg_ErrNo err;
 343         err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
 344         if (err != ENOERR)
 345         {
 346                 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
 347                 reboot();
 348         }
 349
 350         cyg_uint32 len;
 351         cyg_io_flash_getconfig_devsize_t ds;
 352         len = sizeof(ds);
 353         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
 354         if (err != ENOERR)
 355         {
 356                 diag_printf("Flash error cyg_io_get_config %d\n", err);
 357                 reboot();
 358         }
 359
 360         cyg_io_flash_getconfig_erase_t e;
 361         len = sizeof(e);
 362
 363         e.offset = 0;
 364         e.len = ds.dev_size;
 365
 366         diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
 367         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
 368         if (err != ENOERR)
 369         {
 370                 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
 371                 reboot();
 372         }
 373
 374         diag_printf("Flash formatted successfully\n");
 375 #endif
 376
 377         reboot();
 378 }
 379
 380 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
 381                 Jim_Obj * const *argv)
 382 {
 383         if (argc != 1)
 384         {
 385                 return JIM_ERR;
 386         }
 387
 388         format();
 389         for (;;)
 390                 ;
 391 }
 392
 393 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
 394                 Jim_Obj * const *argv)
 395 {
 396         cyg_handle_t thread = 0;
 397         cyg_uint16 id = 0;
 398         Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
 399
 400         /* Loop over the threads, and generate a table row for
 401          * each.
 402          */
 403         while (cyg_thread_get_next(&thread, &id))
 404         {
 405                 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
 406
 407                 cyg_thread_info info;
 408                 char *state_string;
 409
 410                 cyg_thread_get_info(thread, id, &info);
 411
 412                 if (info.name == NULL)
 413                         info.name = "<no name>";
 414
 415                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 416                                 info.name, strlen(info.name)));
 417
 418                 /* Translate the state into a string.
 419                  */
 420                 if (info.state == 0)
 421                         state_string = "RUN";
 422                 else if (info.state & 0x04)
 423                         state_string = "SUSP";
 424                 else
 425                         switch (info.state & 0x1b)
 426                         {
 427                         case 0x01:
 428                                 state_string = "SLEEP";
 429                                 break;
 430                         case 0x02:
 431                                 state_string = "CNTSLEEP";
 432                                 break;
 433                         case 0x08:
 434                                 state_string = "CREATE";
 435                                 break;
 436                         case 0x10:
 437                                 state_string = "EXIT";
 438                                 break;
 439                         default:
 440                                 state_string = "????";
 441                                 break;
 442                         }
 443
 444                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 445                                 state_string, strlen(state_string)));
 446
 447                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
 448                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 449                                 info.set_pri));
 450                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 451                                 info.cur_pri));
 452
 453                 Jim_ListAppendElement(interp, threads, threadObj);
 454         }
 455         Jim_SetResult(interp, threads);
 456
 457         return JIM_OK;
 458 }
 459
 460 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
 461                 Jim_Obj * const *argv)
 462 {
 463         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 464
 465         if (logCount >= logSize)
 466         {
 467                 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
 468                                 % logSize, logSize - logCount % logSize);
 469         }
 470         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
 471
 472         Jim_SetResult(interp, tclOutput);
 473         return JIM_OK;
 474 }
 475
 476 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
 477                 Jim_Obj * const *argv)
 478 {
 479         reboot();
 480         return JIM_OK;
 481 }
 482
 483 static void zylinjtag_startNetwork(void)
 484 {
 485         // Bring TCP/IP up immediately before we're ready to accept commands.
 486         //
 487         // That is as soon as a PING responds, we're accepting telnet sessions.
 488 #if defined(CYGPKG_NET_FREEBSD_STACK)
 489         phi_init_all_network_interfaces();
 490 #else
 491         lwip_init();
 492 #endif
 493         if (!eth0_up)
 494         {
 495                 diag_printf("Network not up and running\n");
 496                 exit(-1);
 497         }
 498
 499         /* very first thing we want is a reboot capability */
 500         reboot_port();
 501
 502 #if defined(CYGPKG_NET_FREEBSD_STACK)
 503         /*start TFTP*/
 504         tftpd_start(69, &fileops);
 505 #endif
 506
 507         cyg_httpd_init_tcl_interpreter();
 508
 509         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 510                         NULL, NULL);
 511         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 512                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 513         Jim_CreateCommand(httpstate.jim_interp, "threads",
 514                         zylinjtag_Jim_Command_threads, NULL, NULL);
 515         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 516                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 517
 518         cyg_httpd_start();
 519
 520         webRunning = true;
 521
 522         diag_printf("Web server running\n");
 523
 524         int s;
 525         struct ifreq ifr;
 526         s = socket(AF_INET, SOCK_DGRAM, 0);
 527         if (s >= 0)
 528         {
 529                 strcpy(ifr.ifr_name, "eth0");
 530                 int res;
 531                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 532                 close(s);
 533
 534                 if (res < 0)
 535                 {
 536                         diag_printf("Can't obtain MAC address\n");
 537                         reboot();
 538                 }
 539         }
 540
 541         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 542                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 543                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 544                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 545                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 546                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 547                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 548
 549         discover_message
 550                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 551
 552         discover_launch();
 553 }
 554
 555 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 556                 cyg_addrword_t info)
 557 {
 558         writeLog = false;
 559         serialLog = true;
 560         char *infoStr = "unknown";
 561         switch (exception)
 562         {
 563 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 564         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 565         infoStr = "undefined instruction";
 566         break;
 567         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 568         infoStr = "software interrupt";
 569         break;
 570         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 571         infoStr = "abort prefetch";
 572         break;
 573         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 574         infoStr = "abort data";
 575         break;
 576 #endif
 577         default:
 578                 break;
 579         }
 580
 581         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 582
 583         diag_printf("Dumping log\n---\n");
 584         if (logCount >= logSize)
 585         {
 586                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 587         }
 588         diag_write(logBuffer, writePtr);
 589
 590         diag_printf("---\nLogdump complete.\n");
 591         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 592         diag_printf("\n---\nRebooting\n");
 593         HAL_PLATFORM_RESET();
 594
 595 }
 596
 597 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 598 static void setHandler(cyg_code_t exception)
 599 {
 600         cyg_exception_handler_t *old_handler;
 601         cyg_addrword_t old_data;
 602
 603         cyg_exception_set_handler(exception, print_exception_handler, 0,
 604                         &old_handler, &old_data);
 605 }
 606 #endif
 607
 608 static cyg_thread zylinjtag_uart_thread_object;
 609 static cyg_handle_t zylinjtag_uart_thread_handle;
 610 static char uart_stack[4096];
 611
 612 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 613 static char backwardBuffer[1024];
 614
 615 void setNoDelay(int session, int flag)
 616 {
 617 #if 1
 618         // This decreases latency dramatically for e.g. GDB load which
 619         // does not have a sliding window protocol
 620         //
 621         // Can cause *lots* of TCP/IP packets to be sent and it would have
 622         // to be enabled/disabled on the fly to avoid the CPU being
 623         // overloaded...
 624         setsockopt(session, /* socket affected */
 625         IPPROTO_TCP, /* set option at TCP level */
 626         TCP_NODELAY, /* name of option */
 627         (char *) &flag, /* the cast is historical
 628          cruft */
 629         sizeof(int)); /* length of option value */
 630 #endif
 631 }
 632
 633 #define TEST_TCPIP() 0
 634
 635 #if TEST_TCPIP
 636 struct
 637 {
 638         int req;
 639         int actual;
 640         int req2;
 641         int actual2;
 642 } tcpipSent[512 * 1024];
 643 int cur;
 644 #endif
 645
 646 static void zylinjtag_uart(cyg_addrword_t data)
 647 {
 648         int so_reuseaddr_option = 1;
 649
 650         int fd;
 651         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 652         {
 653                 LOG_ERROR("error creating socket: %s", strerror(errno));
 654                 exit(-1);
 655         }
 656
 657         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 658                         sizeof(int));
 659
 660         struct sockaddr_in sin;
 661         unsigned int address_size;
 662         address_size = sizeof(sin);
 663         memset(&sin, 0, sizeof(sin));
 664         sin.sin_family = AF_INET;
 665         sin.sin_addr.s_addr = INADDR_ANY;
 666         sin.sin_port = htons(5555);
 667
 668         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 669         {
 670                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 671                 exit(-1);
 672         }
 673
 674         if (listen(fd, 1) == -1)
 675         {
 676                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 677                 exit(-1);
 678         }
 679         //      socket_nonblock(fd);
 680
 681
 682         for (;;)
 683         {
 684                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 685                 if (session < 0)
 686                 {
 687                         continue;
 688                 }
 689
 690                 setNoDelay(session, 1);
 691                 int oldopts = fcntl(session, F_GETFL, 0);
 692                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 693
 694                 int serHandle = open(ZY1000_SER_DEV, O_RDWR | O_NONBLOCK);
 695                 if (serHandle < 0)
 696                 {
 697                         close(session);
 698                         continue;
 699                 }
 700
 701 #ifdef CYGPKG_PROFILE_GPROF
 702                 start_profile();
 703 #endif
 704                 size_t actual = 0;
 705                 size_t actual2 = 0;
 706                 size_t pos, pos2;
 707                 pos = 0;
 708                 pos2 = 0;
 709 #if TEST_TCPIP
 710                 cur = 0;
 711 #endif
 712                 for (;;)
 713                 {
 714                         fd_set write_fds;
 715                         fd_set read_fds;
 716                         FD_ZERO(&write_fds);
 717                         FD_ZERO(&read_fds);
 718                         int fd_max = -1;
 719                         FD_SET(session, &read_fds);
 720                         fd_max = session;
 721                         FD_SET(serHandle, &read_fds);
 722                         if (serHandle > fd_max)
 723                         {
 724                                 fd_max = serHandle;
 725                         }
 726                         /* Wait... */
 727
 728                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 729                         if ((actual == 0) && (actual2 == 0))
 730                         {
 731                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 732                                 if (retval <= 0)
 733                                 {
 734                                         break;
 735                                 }
 736                         }
 737
 738                         if (actual2 <= 0)
 739                         {
 740                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 741                                 int t;
 742                                 t = read(serHandle, backwardBuffer,
 743                                                 sizeof(backwardBuffer));
 744                                 actual2 = t;
 745                                 if (t < 0)
 746                                 {
 747                                         if (errno != EAGAIN)
 748                                         {
 749                                                 goto closeSession;
 750                                         }
 751                                         actual2 = 0;
 752                                 }
 753                                 pos2 = 0;
 754                         }
 755
 756                         size_t y = 0;
 757                         if (actual2 > 0)
 758                         {
 759                                 int written = write(session, backwardBuffer + pos2, actual2);
 760                                 if (written <= 0)
 761                                         goto closeSession;
 762                                 actual2 -= written;
 763                                 pos2 += written;
 764                                 y = written;
 765                         }
 766
 767                         if (FD_ISSET(session, &read_fds)
 768                                         && (sizeof(forwardBuffer) > actual))
 769                         {
 770                                 // NB! Here it is important that we empty the TCP/IP read buffer
 771                                 // to make transmission tick right
 772                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 773                                 pos = 0;
 774                                 int t;
 775                                 // this will block if there is no data at all
 776                                 t = read_socket(session, forwardBuffer + actual,
 777                                                 sizeof(forwardBuffer) - actual);
 778                                 if (t <= 0)
 779                                 {
 780                                         goto closeSession;
 781                                 }
 782                                 actual += t;
 783                         }
 784
 785                         int y2 = 0;
 786                         if (actual > 0)
 787                         {
 788                                 /* Do not put things into the serial buffer if it has something to send
 789                                  * as that can cause a single byte to be sent at the time.
 790                                  *
 791                                  *
 792                                  */
 793                                 int written = write(serHandle, forwardBuffer + pos, actual);
 794                                 if (written < 0)
 795                                 {
 796                                         if (errno != EAGAIN)
 797                                         {
 798                                                 goto closeSession;
 799                                         }
 800                                         // The serial buffer is full
 801                                         written = 0;
 802                                 }
 803                                 else
 804                                 {
 805                                         actual -= written;
 806                                         pos += written;
 807                                 }
 808                                 y2 = written;
 809                         }
 810 #if TEST_TCPIP
 811                         if (cur < 1024)
 812                         {
 813                                 tcpipSent[cur].req = x;
 814                                 tcpipSent[cur].actual = y;
 815                                 tcpipSent[cur].req2 = x2;
 816                                 tcpipSent[cur].actual2 = y2;
 817                                 cur++;
 818                         }
 819 #endif
 820                 }
 821                 closeSession: close(session);
 822                 close(serHandle);
 823
 824 #if TEST_TCPIP
 825                 int i;
 826                 for (i = 0; i < 1024; i++)
 827                 {
 828                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 829                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 830
 831                 }
 832 #endif
 833         }
 834         close(fd);
 835
 836 }
 837
 838 void startUart(void)
 839 {
 840         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 841                         (void *) uart_stack, sizeof(uart_stack),
 842                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 843         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 844         cyg_thread_resume(zylinjtag_uart_thread_handle);
 845 }
 846
 847 static int zylinjtag_Jim_Command_uart(Jim_Interp *interp, int argc,
 848                 Jim_Obj * const *argv)
 849 {
 850         static int current_baud = 38400;
 851         if (argc == 1)
 852         {
 853                 command_print(cmd_ctx, "%d", current_baud);
 854                 return JIM_OK;
 855         }
 856         else if (argc != 2)
 857         {
 858                 return JIM_ERR;
 859         }
 860
 861         long new_baudrate;
 862         if (Jim_GetLong(interp, argv[1], &new_baudrate) != JIM_OK)
 863                 return JIM_ERR;
 864
 865         current_baud = new_baudrate;
 866
 867         int baud;
 868         switch (current_baud)
 869         {
 870         case 9600:
 871                 baud = CYGNUM_SERIAL_BAUD_9600;
 872                 break;
 873         case 19200:
 874                 baud = CYGNUM_SERIAL_BAUD_19200;
 875                 break;
 876         case 38400:
 877                 baud = CYGNUM_SERIAL_BAUD_38400;
 878                 break;
 879         case 57600:
 880                 baud = CYGNUM_SERIAL_BAUD_57600;
 881                 break;
 882         case 115200:
 883                 baud = CYGNUM_SERIAL_BAUD_115200;
 884                 break;
 885         case 230400:
 886                 baud = CYGNUM_SERIAL_BAUD_230400;
 887                 break;
 888         default:
 889                 command_print(cmd_ctx, "unsupported baudrate");
 890                 return ERROR_INVALID_ARGUMENTS;
 891         }
 892
 893         cyg_serial_info_t buf;
 894         cyg_uint32 len = 1;
 895         //get existing serial configuration
 896         len = sizeof(cyg_serial_info_t);
 897         int err;
 898         cyg_io_handle_t serial_handle;
 899
 900         err = cyg_io_lookup(ZY1000_SER_DEV, &serial_handle);
 901         if (err != ENOERR)
 902         {
 903                 LOG_ERROR("Could not open serial port\n");
 904                 return JIM_ERR;
 905         }
 906
 907         err = cyg_io_get_config(serial_handle,
 908                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 909         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 910                         &len);
 911         if (err != ENOERR)
 912         {
 913                 LOG_ERROR("Failed to get serial port settings %d", err);
 914                 return JIM_ERR;
 915         }
 916         buf.baud = baud;
 917
 918         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 919                         &len);
 920         if (err != ENOERR)
 921         {
 922                 LOG_ERROR("Failed to set serial port settings %d", err);
 923                 return JIM_ERR;
 924         }
 925
 926         return JIM_OK;
 927 }
 928
 929 bool logAllToSerial = false;
 930
 931
 932 int boolParam(char *var);
 933
 934
 935 static const char *zylin_config_dir="/config/settings";
 936
 937 static int add_default_dirs(void)
 938 {
 939         add_script_search_dir(zylin_config_dir);
 940         add_script_search_dir("/rom/lib/openocd");
 941         add_script_search_dir("/rom");
 942         return ERROR_OK;
 943 }
 944
 945 int ioutil_init(struct command_context *cmd_ctx);
 946
 947 int main(int argc, char *argv[])
 948 {
 949         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 950          * need to allocate towards the end of the heap.  */
 951
 952 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 953         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 954         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 955         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 956 #endif
 957
 958         int err;
 959
 960         atexit(keep_webserver);
 961
 962         diag_init_putc(_zylinjtag_diag_write_char);
 963         // We want this in the log.
 964         diag_printf("Zylin ZY1000.\n");
 965
 966         err = mount("", "/ram", "ramfs");
 967         if (err < 0)
 968         {
 969                 diag_printf("unable to mount ramfs\n");
 970         }
 971         chdir("/ram");
 972
 973         char address[16];
 974         sprintf(address, "%p", &filedata[0]);
 975         err = mount(address, "/rom", "romfs");
 976         if (err < 0)
 977         {
 978                 diag_printf("unable to mount /rom\n");
 979         }
 980
 981         err = mount("", "/log", "logfs");
 982         if (err < 0)
 983         {
 984                 diag_printf("unable to mount logfs\n");
 985         }
 986
 987         err = mount("", "/tftp", "tftpfs");
 988         if (err < 0)
 989         {
 990                 diag_printf("unable to mount logfs\n");
 991         }
 992
 993         log = fopen("/log/log", "w");
 994         if (log == NULL)
 995         {
 996                 diag_printf("Could not open log file /ram/log\n");
 997                 exit(-1);
 998         }
 999
1000
1001         copydir("/rom", "/ram/cgi");
1002
1003         err = mount("/dev/flash1", "/config", "jffs2");
1004         if (err < 0)
1005         {
1006                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1007                 err = mount("", "/config", "ramfs");
1008                 if (err < 0)
1009                 {
1010                         diag_printf("unable to mount /config as ramdisk.\n");
1011                         reboot();
1012                 }
1013         }
1014         else
1015         {
1016                 /* are we using a ram disk instead of a flash disk? This is used
1017                  * for ZY1000 live demo...
1018                  *
1019                  * copy over flash disk to ram block device
1020                  */
1021                 if (boolParam("ramdisk"))
1022                 {
1023                         diag_printf("Unmounting /config from flash and using ram instead\n");
1024                         err = umount("/config");
1025                         if (err < 0)
1026                         {
1027                                 diag_printf("unable to unmount jffs\n");
1028                                 reboot();
1029                         }
1030
1031                         err = mount("/dev/flash1", "/config2", "jffs2");
1032                         if (err < 0)
1033                         {
1034                                 diag_printf("unable to mount jffs\n");
1035                                 reboot();
1036                         }
1037
1038                         err = mount("", "/config", "ramfs");
1039                         if (err < 0)
1040                         {
1041                                 diag_printf("unable to mount ram block device\n");
1042                                 reboot();
1043                         }
1044
1045                         //              copydir("/config2", "/config");
1046                         copyfile("/config2/ip", "/config/ip");
1047                         copydir("/config2/settings", "/config/settings");
1048
1049                         umount("/config2");
1050                 }
1051         }
1052
1053         mkdir(zylin_config_dir, 0777);
1054         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1055         mkdir(dirname, 0777);
1056         free(dirname);
1057         dirname = alloc_printf("%s/board", zylin_config_dir);
1058         mkdir(dirname, 0777);
1059         free(dirname);
1060         dirname = alloc_printf("%s/event", zylin_config_dir);
1061         mkdir(dirname, 0777);
1062         free(dirname);
1063
1064         logAllToSerial = boolParam("logserial");
1065
1066         // We need the network & web server in case there is something wrong with
1067         // the config files that invoke exit()
1068         zylinjtag_startNetwork();
1069
1070         /* we're going to access the jim interpreter from here on... */
1071         openocd_sleep_postlude();
1072         startUart();
1073
1074         add_default_dirs();
1075
1076         /* initialize commandline interface */
1077         struct command_context * cmd_ctx;
1078         struct command_context *setup_command_handler(Jim_Interp *interp);
1079         cmd_ctx = setup_command_handler(httpstate.jim_interp);
1080         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1081         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1082
1083 #if BUILD_IOUTIL
1084         if (ioutil_init(cmd_ctx) != ERROR_OK)
1085         {
1086                 return EXIT_FAILURE;
1087         }
1088 #endif
1089
1090
1091 #ifdef CYGPKG_PROFILE_GPROF
1092         COMMAND_REGISTER(cmd_ctx, NULL, "ecosboard_profile", eCosBoard_handle_eCosBoard_profile_command,
1093                         COMMAND_ANY, NULL);
1094 #endif
1095
1096         Jim_CreateCommand(httpstate.jim_interp, "uart", zylinjtag_Jim_Command_uart, NULL, NULL);
1097
1098
1099         log_init();
1100
1101         set_log_output(cmd_ctx, log);
1102
1103         LOG_DEBUG("log init complete");
1104
1105         //      diag_printf("Executing config files\n");
1106
1107         if (logAllToSerial)
1108         {
1109                 diag_printf(
1110                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1111                 command_run_line(cmd_ctx, "debug_level 3");
1112         }
1113
1114         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1115
1116         int ret;
1117         ret = server_init(cmd_ctx);
1118         if (ERROR_OK != ret)
1119                 return EXIT_FAILURE;
1120
1121         /* we MUST always run the init command as it will launch telnet sessions */
1122         command_run_line(cmd_ctx, "init");
1123
1124         // FIX!!!  Yuk!
1125         // diag_printf() is really invoked from many more places than we trust it
1126         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1127         //
1128         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1129         // fingers that it doesn't cause any crashes.
1130         diag_printf("Init complete, GDB & telnet servers launched.\n");
1131         command_set_output_handler(cmd_ctx,
1132                         zy1000_configuration_output_handler_log, NULL);
1133         if (!logAllToSerial)
1134         {
1135                 serialLog = false;
1136         }
1137
1138         /* handle network connections */
1139         server_loop(cmd_ctx);
1140         openocd_sleep_prelude();
1141
1142         /* shut server down */
1143         server_quit();
1144
1145         /* free commandline interface */
1146         command_done(cmd_ctx);
1147         umount("/config");
1148
1149         exit(0);
1150         for (;;)
1151                 ;
1152 }
1153
1154 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1155 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1156 {
1157         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1158         return 0;
1159 }
1160
1161 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1162
1163 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1164 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1165
1166 #include <pkgconf/system.h>
1167 #include <pkgconf/hal.h>
1168 #include <pkgconf/kernel.h>
1169 #include <pkgconf/io_fileio.h>
1170 #include <pkgconf/fs_rom.h>
1171
1172 #include <cyg/kernel/ktypes.h>         // base kernel types
1173 #include <cyg/infra/cyg_trac.h>        // tracing macros
1174 #include <cyg/infra/cyg_ass.h>         // assertion macros
1175 #include <cyg/fileio/fileio.h>
1176 #include <cyg/kernel/kapi.h>
1177 #include <cyg/infra/diag.h>
1178
1179 //==========================================================================
1180 // Eventually we want to eXecute In Place from the ROM in a protected
1181 // environment, so we'll need executables to be aligned to a boundary
1182 // suitable for MMU protection. A suitable boundary would be the 4k
1183 // boundary in all the CPU architectures I am currently aware of.
1184
1185 // Forward definitions
1186
1187 // Filesystem operations
1188 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1189 static int tftpfs_umount(cyg_mtab_entry *mte);
1190 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1191                 int mode, cyg_file *fte);
1192 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1193 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1194
1195 // File operations
1196 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1197 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1198 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1199
1200 //==========================================================================
1201 // Filesystem table entries
1202
1203 // -------------------------------------------------------------------------
1204 // Fstab entry.
1205 // This defines the entry in the filesystem table.
1206 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1207 // we should never block in any filesystem operations.
1208 #if 1
1209 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1210                 CYG_SYNCMODE_NONE,
1211                 tftpfs_mount,
1212                 tftpfs_umount,
1213                 tftpfs_open,
1214                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1215                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1216                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1217                 (cyg_fsop_rename *)cyg_fileio_erofs,
1218                 (cyg_fsop_link *)cyg_fileio_erofs,
1219                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1220                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1221                 (cyg_fsop_stat *)cyg_fileio_erofs,
1222                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1223                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1224 #endif
1225
1226 // -------------------------------------------------------------------------
1227 // mtab entry.
1228 // This defines a single ROMFS loaded into ROM at the configured address
1229 //
1230 // MTAB_ENTRY(rom_mte,  // structure name
1231 //              "/rom",         // mount point
1232 //              "romfs",        // FIlesystem type
1233 //              "",             // hardware device
1234 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1235 //);
1236
1237
1238 // -------------------------------------------------------------------------
1239 // File operations.
1240 // This set of file operations are used for normal open files.
1241
1242 static cyg_fileops tftpfs_fileops =
1243 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1244                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1245                 tftpfs_fo_fsync, tftpfs_fo_close,
1246                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1247                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1248                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1249
1250 // -------------------------------------------------------------------------
1251 // tftpfs_mount()
1252 // Process a mount request. This mainly finds root for the
1253 // filesystem.
1254
1255 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1256 {
1257         return ENOERR;
1258 }
1259
1260 static int tftpfs_umount(cyg_mtab_entry *mte)
1261 {
1262         return ENOERR;
1263 }
1264
1265 struct Tftp
1266 {
1267         int write;
1268         int readFile;
1269         cyg_uint8 *mem;
1270         int actual;
1271         char *server;
1272         char *file;
1273 };
1274
1275 static void freeTftp(struct Tftp *t)
1276 {
1277         if (t == NULL)
1278                 return;
1279         if (t->mem)
1280                 free(t->mem);
1281         if (t->server)
1282                 free(t->server);
1283         if (t->file)
1284                 free(t->file);
1285         free(t);
1286 }
1287
1288 static const int tftpMaxSize = 8192 * 1024;
1289 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1290                 int mode, cyg_file *file)
1291 {
1292         struct Tftp *tftp;
1293         tftp = malloc(sizeof(struct Tftp));
1294         if (tftp == NULL)
1295                 return EMFILE;
1296         memset(tftp, 0, sizeof(struct Tftp));
1297
1298         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1299         file->f_type = CYG_FILE_TYPE_FILE;
1300         file->f_ops = &tftpfs_fileops;
1301         file->f_offset = 0;
1302         file->f_data = 0;
1303         file->f_xops = 0;
1304
1305         tftp->mem = malloc(tftpMaxSize);
1306         if (tftp->mem == NULL)
1307         {
1308                 freeTftp(tftp);
1309                 return EMFILE;
1310         }
1311
1312         char *server = strchr(name, '/');
1313         if (server == NULL)
1314         {
1315                 freeTftp(tftp);
1316                 return EMFILE;
1317         }
1318
1319         tftp->server = malloc(server - name + 1);
1320         if (tftp->server == NULL)
1321         {
1322                 freeTftp(tftp);
1323                 return EMFILE;
1324         }
1325         strncpy(tftp->server, name, server - name);
1326         tftp->server[server - name] = 0;
1327
1328         tftp->file = strdup(server + 1);
1329         if (tftp->file == NULL)
1330         {
1331                 freeTftp(tftp);
1332                 return EMFILE;
1333         }
1334
1335         file->f_data = (CYG_ADDRWORD) tftp;
1336
1337         return ENOERR;
1338 }
1339
1340 static int fetchTftp(struct Tftp *tftp)
1341 {
1342         if (!tftp->readFile)
1343         {
1344                 int err;
1345                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1346                                 tftpMaxSize, TFTP_OCTET, &err);
1347
1348                 if (tftp->actual < 0)
1349                 {
1350                         return EMFILE;
1351                 }
1352                 tftp->readFile = 1;
1353         }
1354         return ENOERR;
1355 }
1356
1357 // -------------------------------------------------------------------------
1358 // tftpfs_fo_write()
1359 // Read data from file.
1360
1361 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1362 {
1363         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1364
1365         if (fetchTftp(tftp) != ENOERR)
1366                 return EMFILE;
1367
1368         int i;
1369         off_t pos = fp->f_offset;
1370         int resid = 0;
1371         for (i = 0; i < uio->uio_iovcnt; i++)
1372         {
1373                 cyg_iovec *iov = &uio->uio_iov[i];
1374                 char *buf = (char *) iov->iov_base;
1375                 off_t len = iov->iov_len;
1376
1377                 if (len + pos > tftp->actual)
1378                 {
1379                         len = tftp->actual - pos;
1380                 }
1381                 resid += iov->iov_len - len;
1382
1383                 memcpy(buf, tftp->mem + pos, len);
1384                 pos += len;
1385
1386         }
1387         uio->uio_resid = resid;
1388         fp->f_offset = pos;
1389
1390         return ENOERR;
1391 }
1392
1393 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1394 {
1395         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1396
1397         int i;
1398         off_t pos = fp->f_offset;
1399         int resid = 0;
1400         for (i = 0; i < uio->uio_iovcnt; i++)
1401         {
1402                 cyg_iovec *iov = &uio->uio_iov[i];
1403                 char *buf = (char *) iov->iov_base;
1404                 off_t len = iov->iov_len;
1405
1406                 if (len + pos > tftpMaxSize)
1407                 {
1408                         len = tftpMaxSize - pos;
1409                 }
1410                 resid += iov->iov_len - len;
1411
1412                 memcpy(tftp->mem + pos, buf, len);
1413                 pos += len;
1414
1415         }
1416         uio->uio_resid = resid;
1417         fp->f_offset = pos;
1418
1419         tftp->write = 1;
1420
1421         return ENOERR;
1422 }
1423
1424 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1425 {
1426         int error = ENOERR;
1427         return error;
1428 }
1429
1430 // -------------------------------------------------------------------------
1431 // romfs_fo_close()
1432 // Close a file. We just clear out the data pointer.
1433
1434 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1435 {
1436         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1437         int error = ENOERR;
1438
1439         if (tftp->write)
1440         {
1441                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1442                                 TFTP_OCTET, &error);
1443         }
1444
1445         freeTftp(tftp);
1446         fp->f_data = 0;
1447         return error;
1448 }
1449
1450 // -------------------------------------------------------------------------
1451 // romfs_fo_lseek()
1452 // Seek to a new file position.
1453
1454 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1455 {
1456         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1457         off_t pos = *apos;
1458
1459         if (fetchTftp(tftp) != ENOERR)
1460                 return EMFILE;
1461
1462         switch (whence)
1463         {
1464         case SEEK_SET:
1465                 // Pos is already where we want to be.
1466                 break;
1467
1468         case SEEK_CUR:
1469                 // Add pos to current offset.
1470                 pos += fp->f_offset;
1471                 break;
1472
1473         case SEEK_END:
1474                 // Add pos to file size.
1475                 pos += tftp->actual;
1476                 break;
1477
1478         default:
1479                 return EINVAL;
1480         }
1481
1482         // Check that pos is still within current file size, or at the
1483         // very end.
1484         if (pos < 0 || pos > tftp->actual)
1485                 return EINVAL;
1486
1487         // All OK, set fp offset and return new position.
1488         *apos = fp->f_offset = pos;
1489
1490         return ENOERR;
1491 }
1492
1493 void usleep(int us)
1494 {
1495         if (us > 10000)
1496                 cyg_thread_delay(us / 10000 + 1);
1497         else
1498                 HAL_DELAY_US(us);
1499 }
1500
1501 // Chunked version.
1502 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1503 {
1504         cyg_httpd_start_chunked("text");
1505         if (logCount >= logSize)
1506         {
1507                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1508                                 - logCount % logSize);
1509         }
1510         cyg_httpd_write_chunked(logBuffer, writePtr);
1511         cyg_httpd_end_chunked();
1512         return -1;
1513 }
1514
1515 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1516
1517 // Filesystem operations
1518 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1519 static int logfs_umount(cyg_mtab_entry *mte);
1520 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1521                 int mode, cyg_file *fte);
1522 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1523
1524 // File operations
1525 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1526 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1527
1528 #include <cyg/io/devtab.h>
1529
1530 //==========================================================================
1531 // Filesystem table entries
1532
1533 // -------------------------------------------------------------------------
1534 // Fstab entry.
1535 // This defines the entry in the filesystem table.
1536 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1537 // we should never block in any filesystem operations.
1538 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1539                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1540                 logfs_mount,
1541                 logfs_umount,
1542                 logfs_open,
1543                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1544                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1545                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1546                 (cyg_fsop_rename *)cyg_fileio_erofs,
1547                 (cyg_fsop_link *)cyg_fileio_erofs,
1548                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1549                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1550                 (cyg_fsop_stat *)cyg_fileio_erofs,
1551                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1552                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1553
1554 // -------------------------------------------------------------------------
1555 // File operations.
1556 // This set of file operations are used for normal open files.
1557
1558 static cyg_fileops logfs_fileops =
1559 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1560                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1561                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1562                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1563                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1564                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1565
1566 // -------------------------------------------------------------------------
1567 // logfs_mount()
1568 // Process a mount request. This mainly finds root for the
1569 // filesystem.
1570
1571 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1572 {
1573         return ENOERR;
1574 }
1575
1576 static int logfs_umount(cyg_mtab_entry *mte)
1577 {
1578         return ENOERR;
1579 }
1580
1581 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1582                 int mode, cyg_file *file)
1583 {
1584         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1585         file->f_type = CYG_FILE_TYPE_FILE;
1586         file->f_ops = &logfs_fileops;
1587         file->f_offset = 0;
1588         file->f_data = 0;
1589         file->f_xops = 0;
1590         return ENOERR;
1591 }
1592
1593 // -------------------------------------------------------------------------
1594 // logfs_fo_write()
1595 // Write data to file.
1596
1597 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1598 {
1599         int i;
1600         for (i = 0; i < uio->uio_iovcnt; i++)
1601         {
1602                 cyg_iovec *iov = &uio->uio_iov[i];
1603                 char *buf = (char *) iov->iov_base;
1604                 off_t len = iov->iov_len;
1605
1606                 diag_write(buf, len);
1607         }
1608         uio->uio_resid = 0;
1609
1610         return ENOERR;
1611 }
1612 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1613 {
1614         return ENOERR;
1615 }
1616
1617 // -------------------------------------------------------------------------
1618 // romfs_fo_close()
1619 // Close a file. We just clear out the data pointer.
1620
1621 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1622 {
1623         return ENOERR;
1624 }
1625
1626 int loadFile(const char *fileName, void **data, int *len);
1627
1628 /* boolean parameter stored on config */
1629 int boolParam(char *var)
1630 {
1631         bool result = false;
1632         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1633         if (name == NULL)
1634                 return result;
1635
1636         void *data;
1637         int len;
1638         if (loadFile(name, &data, &len) == ERROR_OK)
1639         {
1640                 if (len > 1)
1641                         len = 1;
1642                 result = strncmp((char *) data, "1", len) == 0;
1643                 free(data);
1644         }
1645         free(name);
1646         return result;
1647 }
1648