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   1 /***************************************************************************
   2  *   Copyright (C) 2007-2008 by Øyvind Harboe                              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "log.h"
  25 #include "types.h"
  26 #include "jtag.h"
  27 #include "configuration.h"
  28 #include "xsvf.h"
  29 #include "svf.h"
  30 #include "target.h"
  31 #include "flash.h"
  32 #include "nand.h"
  33 #include "pld.h"
  34
  35 #include "command.h"
  36 #include "server.h"
  37 #include "telnet_server.h"
  38 #include "gdb_server.h"
  39 #include "openocd.h"
  40
  41 #include <time_support.h>
  42 #include <sys/time.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/discover/discover.h>
  63 #include <cyg/hal/hal_diag.h>
  64 #include <cyg/kernel/kapi.h>
  65 #include <cyg/io/serialio.h>
  66 #include <cyg/io/io.h>
  67 #include <netinet/tcp.h>
  68 #include "rom.h"
  69 #include <sys/ioctl.h>
  70 #include <sys/socket.h>
  71 #include <netinet/in.h>
  72 #include <net/if.h>
  73 #include <arpa/inet.h>
  74 #include <sys/types.h>
  75 #include <sys/socket.h>
  76 #include <netdb.h>
  77 #include <netinet/in.h>
  78 #include <unistd.h>
  79 #include <arpa/inet.h>
  80 #include <stdio.h>
  81 #include <ifaddrs.h>
  82 #include <string.h>
  83
  84 #include <unistd.h>
  85 #include <stdio.h>
  86
  87
  88 #define MAX_IFS 64
  89 #if defined(CYGPKG_NET_FREEBSD_STACK)
  90 #include <tftp_support.h>
  91 /* posix compatibility broken*/
  92 struct tftpd_fileops fileops =
  93 {
  94         (int (*)(const char *, int))open,
  95         close,
  96         (int (*)(int, const void *, int))write,
  97         (int (*)(int, void *, int))read
  98 };
  99
 100 #endif
 101
 102
 103 void diag_write(char *buf, int len)
 104 {
 105         int j;
 106         for (j = 0; j < len; j++)
 107         {
 108                 diag_printf("%c", buf[j]);
 109         }
 110 }
 111
 112 static bool serialLog = true;
 113 static bool writeLog = true;
 114
 115 char hwaddr[512];
 116
 117
 118 extern struct flash_driver *flash_drivers[];
 119 extern struct target_type *target_types[];
 120
 121 #ifdef CYGPKG_PROFILE_GPROF
 122 #include <cyg/profile/profile.h>
 123
 124 extern char _stext, _etext; // Defined by the linker
 125
 126 static char *start_of_code=&_stext;
 127 static char *end_of_code=&_etext;
 128
 129 void start_profile(void)
 130 {
 131         // This starts up the system-wide profiling, gathering
 132         // profile information on all of the code, with a 16 byte
 133         // "bucket" size, at a rate of 100us/profile hit.
 134         // Note: a bucket size of 16 will give pretty good function
 135         //       resolution.  Much smaller and the buffer becomes
 136         //       much too large for very little gain.
 137         // Note: a timer period of 100us is also a reasonable
 138         //       compromise.  Any smaller and the overhead of
 139         //       handling the timter (profile) interrupt could
 140         //       swamp the system.  A fast processor might get
 141         //       by with a smaller value, but a slow one could
 142         //       even be swamped by this value.  If the value is
 143         //       too large, the usefulness of the profile is reduced.
 144
 145         // no more interrupts than 1/10ms.
 146         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 147         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 148         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 149 }
 150 #endif
 151
 152 static FILE *log;
 153
 154 static char reboot_stack[2048];
 155
 156 static void zylinjtag_reboot(cyg_addrword_t data)
 157 {
 158         serialLog = true;
 159         diag_printf("Rebooting in 500 ticks..\n");
 160         cyg_thread_delay(500);
 161         diag_printf("Unmounting /config..\n");
 162         umount("/config");
 163         diag_printf("Rebooting..\n");
 164         HAL_PLATFORM_RESET();
 165 }
 166 static cyg_thread zylinjtag_thread_object;
 167 static cyg_handle_t zylinjtag_thread_handle;
 168
 169 void reboot(void)
 170 {
 171         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 172                         (void *) reboot_stack, sizeof(reboot_stack),
 173                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 174         cyg_thread_resume(zylinjtag_thread_handle);
 175 }
 176
 177 static char zylinjtag_reboot_port_stack[2048];
 178 static cyg_thread zylinjtag_reboot_port_thread_object;
 179 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 180
 181 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 182 {
 183         int so_reuseaddr_option = 1;
 184
 185         int fd;
 186         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 187         {
 188                 LOG_ERROR("error creating socket: %s", strerror(errno));
 189                 exit(-1);
 190         }
 191
 192         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 193                         sizeof(int));
 194
 195         struct sockaddr_in sin;
 196         unsigned int address_size;
 197         address_size = sizeof(sin);
 198         memset(&sin, 0, sizeof(sin));
 199         sin.sin_family = AF_INET;
 200         sin.sin_addr.s_addr = INADDR_ANY;
 201         sin.sin_port = htons(1234);
 202
 203         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 204         {
 205                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 206                 exit(-1);
 207         }
 208
 209         if (listen(fd, 1) == -1)
 210         {
 211                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 212                 exit(-1);
 213         }
 214         //      socket_nonblock(fd);
 215
 216
 217         accept(fd, (struct sockaddr *) &sin, &address_size);
 218
 219         diag_printf("Got reboot signal on port 1234");
 220
 221         reboot();
 222
 223 }
 224
 225 void reboot_port(void)
 226 {
 227         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 228                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 229                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 230         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 231 }
 232
 233 int configuration_output_handler(struct command_context *context,
 234                 const char* line)
 235 {
 236         diag_printf("%s", line);
 237
 238         return ERROR_OK;
 239 }
 240
 241 int zy1000_configuration_output_handler_log(struct command_context *context,
 242                 const char* line)
 243 {
 244         LOG_USER_N("%s", line);
 245
 246         return ERROR_OK;
 247 }
 248
 249 #ifdef CYGPKG_PROFILE_GPROF
 250
 251 int eCosBoard_handle_eCosBoard_profile_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc)
 252 {
 253         command_print(cmd_ctx, "Profiling started");
 254         start_profile();
 255         return ERROR_OK;
 256 }
 257
 258 #endif
 259
 260 externC void phi_init_all_network_interfaces(void);
 261
 262 struct command_context *cmd_ctx;
 263
 264 static bool webRunning = false;
 265
 266 void keep_webserver(void)
 267 {
 268         // Target initialisation is only attempted at startup, so we sleep forever and
 269         // let the http server bail us out(i.e. get config files set up).
 270         diag_printf("OpenOCD has invoked exit().\n"
 271                 "Use web server to correct any configuration settings and reboot.\n");
 272         if (!webRunning)
 273                 reboot();
 274
 275         // exit() will terminate the current thread and we we'll then sleep eternally or
 276         // we'll have a reboot scheduled.
 277 }
 278
 279 extern void printDccChar(char c);
 280
 281 static char logBuffer[128 * 1024];
 282 static const int logSize = sizeof(logBuffer);
 283 int writePtr = 0;
 284 int logCount = 0;
 285
 286 void _zylinjtag_diag_write_char(char c, void **param)
 287 {
 288         if (writeLog)
 289         {
 290                 logBuffer[writePtr] = c;
 291                 writePtr = (writePtr + 1) % logSize;
 292                 logCount++;
 293         }
 294         if (serialLog)
 295         {
 296                 if (c == '\n')
 297                 {
 298                         HAL_DIAG_WRITE_CHAR('\r');
 299                 }
 300                 HAL_DIAG_WRITE_CHAR(c);
 301         }
 302
 303 #ifdef CYGPKG_HAL_ZYLIN_PHI
 304         printDccChar(c);
 305 #endif
 306 }
 307
 308 void copyfile(char *name2, char *name1);
 309
 310 void copydir(char *name, char *destdir);
 311
 312 #if 0
 313 MTAB_ENTRY(romfs_mte1,
 314                 "/rom",
 315                 "romfs",
 316                 "",
 317                 (CYG_ADDRWORD) &filedata[0]);
 318 #endif
 319
 320 void openocd_sleep_prelude(void)
 321 {
 322         cyg_mutex_unlock(&httpstate.jim_lock);
 323 }
 324
 325 void openocd_sleep_postlude(void)
 326 {
 327         cyg_mutex_lock(&httpstate.jim_lock);
 328 }
 329
 330 void format(void)
 331 {
 332 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
 333         diag_printf("Formatting JFFS2...\n");
 334
 335         cyg_io_handle_t handle;
 336
 337         Cyg_ErrNo err;
 338         err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
 339         if (err != ENOERR)
 340         {
 341                 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
 342                 reboot();
 343         }
 344
 345         cyg_uint32 len;
 346         cyg_io_flash_getconfig_devsize_t ds;
 347         len = sizeof(ds);
 348         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
 349         if (err != ENOERR)
 350         {
 351                 diag_printf("Flash error cyg_io_get_config %d\n", err);
 352                 reboot();
 353         }
 354
 355         cyg_io_flash_getconfig_erase_t e;
 356         len = sizeof(e);
 357
 358         e.offset = 0;
 359         e.len = ds.dev_size;
 360
 361         diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
 362         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
 363         if (err != ENOERR)
 364         {
 365                 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
 366                 reboot();
 367         }
 368
 369         diag_printf("Flash formatted successfully\n");
 370 #endif
 371
 372         reboot();
 373 }
 374
 375 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
 376                 Jim_Obj * const *argv)
 377 {
 378         if (argc != 1)
 379         {
 380                 return JIM_ERR;
 381         }
 382
 383         format();
 384         for (;;)
 385                 ;
 386 }
 387
 388 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
 389                 Jim_Obj * const *argv)
 390 {
 391         cyg_handle_t thread = 0;
 392         cyg_uint16 id = 0;
 393         Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
 394
 395         /* Loop over the threads, and generate a table row for
 396          * each.
 397          */
 398         while (cyg_thread_get_next(&thread, &id))
 399         {
 400                 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
 401
 402                 cyg_thread_info info;
 403                 char *state_string;
 404
 405                 cyg_thread_get_info(thread, id, &info);
 406
 407                 if (info.name == NULL)
 408                         info.name = "<no name>";
 409
 410                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 411                                 info.name, strlen(info.name)));
 412
 413                 /* Translate the state into a string.
 414                  */
 415                 if (info.state == 0)
 416                         state_string = "RUN";
 417                 else if (info.state & 0x04)
 418                         state_string = "SUSP";
 419                 else
 420                         switch (info.state & 0x1b)
 421                         {
 422                         case 0x01:
 423                                 state_string = "SLEEP";
 424                                 break;
 425                         case 0x02:
 426                                 state_string = "CNTSLEEP";
 427                                 break;
 428                         case 0x08:
 429                                 state_string = "CREATE";
 430                                 break;
 431                         case 0x10:
 432                                 state_string = "EXIT";
 433                                 break;
 434                         default:
 435                                 state_string = "????";
 436                                 break;
 437                         }
 438
 439                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 440                                 state_string, strlen(state_string)));
 441
 442                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
 443                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 444                                 info.set_pri));
 445                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 446                                 info.cur_pri));
 447
 448                 Jim_ListAppendElement(interp, threads, threadObj);
 449         }
 450         Jim_SetResult(interp, threads);
 451
 452         return JIM_OK;
 453 }
 454
 455 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
 456                 Jim_Obj * const *argv)
 457 {
 458         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 459
 460         if (logCount >= logSize)
 461         {
 462                 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
 463                                 % logSize, logSize - logCount % logSize);
 464         }
 465         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
 466
 467         Jim_SetResult(interp, tclOutput);
 468         return JIM_OK;
 469 }
 470
 471 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
 472                 Jim_Obj * const *argv)
 473 {
 474         reboot();
 475         return JIM_OK;
 476 }
 477
 478 static void zylinjtag_startNetwork(void)
 479 {
 480         // Bring TCP/IP up immediately before we're ready to accept commands.
 481         //
 482         // That is as soon as a PING responds, we're accepting telnet sessions.
 483 #if defined(CYGPKG_NET_FREEBSD_STACK)
 484         phi_init_all_network_interfaces();
 485 #else
 486         lwip_init();
 487 #endif
 488         if (!eth0_up)
 489         {
 490                 diag_printf("Network not up and running\n");
 491                 exit(-1);
 492         }
 493
 494         /* very first thing we want is a reboot capability */
 495         reboot_port();
 496
 497 #if defined(CYGPKG_NET_FREEBSD_STACK)
 498         /*start TFTP*/
 499         tftpd_start(69, &fileops);
 500 #endif
 501
 502         cyg_httpd_init_tcl_interpreter();
 503
 504         interp = httpstate.jim_interp;
 505
 506         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 507                         NULL, NULL);
 508         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 509                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 510         Jim_CreateCommand(httpstate.jim_interp, "threads",
 511                         zylinjtag_Jim_Command_threads, NULL, NULL);
 512         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 513                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 514
 515         cyg_httpd_start();
 516
 517         webRunning = true;
 518
 519         diag_printf("Web server running\n");
 520
 521         int s;
 522         struct ifreq ifr;
 523         s = socket(AF_INET, SOCK_DGRAM, 0);
 524         if (s >= 0)
 525         {
 526                 strcpy(ifr.ifr_name, "eth0");
 527                 int res;
 528                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 529                 close(s);
 530
 531                 if (res < 0)
 532                 {
 533                         diag_printf("Can't obtain MAC address\n");
 534                         reboot();
 535                 }
 536         }
 537
 538         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 539                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 540                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 541                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 542                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 543                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 544                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 545
 546         discover_message
 547                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 548
 549         discover_launch();
 550 }
 551
 552 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 553                 cyg_addrword_t info)
 554 {
 555         writeLog = false;
 556         serialLog = true;
 557         char *infoStr = "unknown";
 558         switch (exception)
 559         {
 560 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 561         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 562         infoStr = "undefined instruction";
 563         break;
 564         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 565         infoStr = "software interrupt";
 566         break;
 567         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 568         infoStr = "abort prefetch";
 569         break;
 570         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 571         infoStr = "abort data";
 572         break;
 573 #endif
 574         default:
 575                 break;
 576         }
 577
 578         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 579
 580         diag_printf("Dumping log\n---\n");
 581         if (logCount >= logSize)
 582         {
 583                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 584         }
 585         diag_write(logBuffer, writePtr);
 586
 587         diag_printf("---\nLogdump complete.\n");
 588         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 589         diag_printf("\n---\nRebooting\n");
 590         HAL_PLATFORM_RESET();
 591
 592 }
 593
 594 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 595 static void setHandler(cyg_code_t exception)
 596 {
 597         cyg_exception_handler_t *old_handler;
 598         cyg_addrword_t old_data;
 599
 600         cyg_exception_set_handler(exception, print_exception_handler, 0,
 601                         &old_handler, &old_data);
 602 }
 603 #endif
 604
 605 static cyg_thread zylinjtag_uart_thread_object;
 606 static cyg_handle_t zylinjtag_uart_thread_handle;
 607 static char uart_stack[4096];
 608
 609 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 610 static char backwardBuffer[1024];
 611
 612 void setNoDelay(int session, int flag)
 613 {
 614 #if 1
 615         // This decreases latency dramatically for e.g. GDB load which
 616         // does not have a sliding window protocol
 617         //
 618         // Can cause *lots* of TCP/IP packets to be sent and it would have
 619         // to be enabled/disabled on the fly to avoid the CPU being
 620         // overloaded...
 621         setsockopt(session, /* socket affected */
 622         IPPROTO_TCP, /* set option at TCP level */
 623         TCP_NODELAY, /* name of option */
 624         (char *) &flag, /* the cast is historical
 625          cruft */
 626         sizeof(int)); /* length of option value */
 627 #endif
 628 }
 629
 630 #define TEST_TCPIP() 0
 631
 632 #if TEST_TCPIP
 633 struct
 634 {
 635         int req;
 636         int actual;
 637         int req2;
 638         int actual2;
 639 } tcpipSent[512 * 1024];
 640 int cur;
 641 #endif
 642
 643 static void zylinjtag_uart(cyg_addrword_t data)
 644 {
 645         int so_reuseaddr_option = 1;
 646
 647         int fd;
 648         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 649         {
 650                 LOG_ERROR("error creating socket: %s", strerror(errno));
 651                 exit(-1);
 652         }
 653
 654         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 655                         sizeof(int));
 656
 657         struct sockaddr_in sin;
 658         unsigned int address_size;
 659         address_size = sizeof(sin);
 660         memset(&sin, 0, sizeof(sin));
 661         sin.sin_family = AF_INET;
 662         sin.sin_addr.s_addr = INADDR_ANY;
 663         sin.sin_port = htons(5555);
 664
 665         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 666         {
 667                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 668                 exit(-1);
 669         }
 670
 671         if (listen(fd, 1) == -1)
 672         {
 673                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 674                 exit(-1);
 675         }
 676         //      socket_nonblock(fd);
 677
 678
 679         for (;;)
 680         {
 681                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 682                 if (session < 0)
 683                 {
 684                         continue;
 685                 }
 686
 687                 setNoDelay(session, 1);
 688                 int oldopts = fcntl(session, F_GETFL, 0);
 689                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 690
 691                 int serHandle = open("/dev/ser0", O_RDWR | O_NONBLOCK);
 692                 if (serHandle < 0)
 693                 {
 694                         close(session);
 695                         continue;
 696                 }
 697
 698 #ifdef CYGPKG_PROFILE_GPROF
 699                 start_profile();
 700 #endif
 701                 size_t actual = 0;
 702                 size_t actual2 = 0;
 703                 size_t pos, pos2;
 704                 pos = 0;
 705                 pos2 = 0;
 706 #if TEST_TCPIP
 707                 cur = 0;
 708 #endif
 709                 for (;;)
 710                 {
 711                         fd_set write_fds;
 712                         fd_set read_fds;
 713                         FD_ZERO(&write_fds);
 714                         FD_ZERO(&read_fds);
 715                         int fd_max = -1;
 716                         FD_SET(session, &read_fds);
 717                         fd_max = session;
 718                         FD_SET(serHandle, &read_fds);
 719                         if (serHandle > fd_max)
 720                         {
 721                                 fd_max = serHandle;
 722                         }
 723                         /* Wait... */
 724
 725                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 726                         if ((actual == 0) && (actual2 == 0))
 727                         {
 728                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 729                                 if (retval <= 0)
 730                                 {
 731                                         break;
 732                                 }
 733                         }
 734
 735                         if (actual2 <= 0)
 736                         {
 737                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 738                                 int t;
 739                                 t = read(serHandle, backwardBuffer,
 740                                                 sizeof(backwardBuffer));
 741                                 actual2 = t;
 742                                 if (t < 0)
 743                                 {
 744                                         if (errno != EAGAIN)
 745                                         {
 746                                                 goto closeSession;
 747                                         }
 748                                         actual2 = 0;
 749                                 }
 750                                 pos2 = 0;
 751                         }
 752
 753                         size_t y = 0;
 754                         if (actual2 > 0)
 755                         {
 756                                 int written = write(session, backwardBuffer + pos2, actual2);
 757                                 if (written <= 0)
 758                                         goto closeSession;
 759                                 actual2 -= written;
 760                                 pos2 += written;
 761                                 y = written;
 762                         }
 763
 764                         if (FD_ISSET(session, &read_fds)
 765                                         && (sizeof(forwardBuffer) > actual))
 766                         {
 767                                 // NB! Here it is important that we empty the TCP/IP read buffer
 768                                 // to make transmission tick right
 769                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 770                                 pos = 0;
 771                                 int t;
 772                                 // this will block if there is no data at all
 773                                 t = read_socket(session, forwardBuffer + actual,
 774                                                 sizeof(forwardBuffer) - actual);
 775                                 if (t <= 0)
 776                                 {
 777                                         goto closeSession;
 778                                 }
 779                                 actual += t;
 780                         }
 781
 782                         int y2 = 0;
 783                         if (actual > 0)
 784                         {
 785                                 /* Do not put things into the serial buffer if it has something to send
 786                                  * as that can cause a single byte to be sent at the time.
 787                                  *
 788                                  *
 789                                  */
 790                                 int written = write(serHandle, forwardBuffer + pos, actual);
 791                                 if (written < 0)
 792                                 {
 793                                         if (errno != EAGAIN)
 794                                         {
 795                                                 goto closeSession;
 796                                         }
 797                                         // The serial buffer is full
 798                                         written = 0;
 799                                 }
 800                                 else
 801                                 {
 802                                         actual -= written;
 803                                         pos += written;
 804                                 }
 805                                 y2 = written;
 806                         }
 807 #if TEST_TCPIP
 808                         if (cur < 1024)
 809                         {
 810                                 tcpipSent[cur].req = x;
 811                                 tcpipSent[cur].actual = y;
 812                                 tcpipSent[cur].req2 = x2;
 813                                 tcpipSent[cur].actual2 = y2;
 814                                 cur++;
 815                         }
 816 #endif
 817                 }
 818                 closeSession: close(session);
 819                 close(serHandle);
 820
 821 #if TEST_TCPIP
 822                 int i;
 823                 for (i = 0; i < 1024; i++)
 824                 {
 825                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 826                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 827
 828                 }
 829 #endif
 830         }
 831         close(fd);
 832
 833 }
 834
 835 void startUart(void)
 836 {
 837         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 838                         (void *) uart_stack, sizeof(uart_stack),
 839                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 840         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 841         cyg_thread_resume(zylinjtag_uart_thread_handle);
 842 }
 843
 844 int handle_uart_command(struct command_context *cmd_ctx, char *cmd,
 845                 char **args, int argc)
 846 {
 847         static int current_baud = 38400;
 848         if (argc == 0)
 849         {
 850                 command_print(cmd_ctx, "%d", current_baud);
 851                 return ERROR_OK;
 852         }
 853         else if (argc != 1)
 854         {
 855                 return ERROR_INVALID_ARGUMENTS;
 856         }
 857
 858         current_baud = atol(args[0]);
 859
 860         int baud;
 861         switch (current_baud)
 862         {
 863         case 9600:
 864                 baud = CYGNUM_SERIAL_BAUD_9600;
 865                 break;
 866         case 19200:
 867                 baud = CYGNUM_SERIAL_BAUD_19200;
 868                 break;
 869         case 38400:
 870                 baud = CYGNUM_SERIAL_BAUD_38400;
 871                 break;
 872         case 57600:
 873                 baud = CYGNUM_SERIAL_BAUD_57600;
 874                 break;
 875         case 115200:
 876                 baud = CYGNUM_SERIAL_BAUD_115200;
 877                 break;
 878         case 230400:
 879                 baud = CYGNUM_SERIAL_BAUD_230400;
 880                 break;
 881         default:
 882                 command_print(cmd_ctx, "unsupported baudrate");
 883                 return ERROR_INVALID_ARGUMENTS;
 884         }
 885
 886         cyg_serial_info_t buf;
 887         cyg_uint32 len = 1;
 888         //get existing serial configuration
 889         len = sizeof(cyg_serial_info_t);
 890         int err;
 891         cyg_io_handle_t serial_handle;
 892
 893         err = cyg_io_lookup("/dev/ser0", &serial_handle);
 894         if (err != ENOERR)
 895         {
 896                 LOG_ERROR("/dev/ser0 not found\n");
 897                 return ERROR_FAIL;
 898         }
 899
 900         err = cyg_io_get_config(serial_handle,
 901                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 902         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 903                         &len);
 904         if (err != ENOERR)
 905         {
 906                 command_print(cmd_ctx, "Failed to get serial port settings %d", err);
 907                 return ERROR_OK;
 908         }
 909         buf.baud = baud;
 910
 911         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 912                         &len);
 913         if (err != ENOERR)
 914         {
 915                 command_print(cmd_ctx, "Failed to set serial port settings %d", err);
 916                 return ERROR_OK;
 917         }
 918
 919         return ERROR_OK;
 920 }
 921
 922 bool logAllToSerial = false;
 923
 924
 925 int boolParam(char *var);
 926
 927
 928 struct command_context *setup_command_handler(void);
 929
 930 static const char *zylin_config_dir="/config/settings";
 931
 932 static int add_default_dirs(void)
 933 {
 934         add_script_search_dir(zylin_config_dir);
 935         add_script_search_dir("/rom/lib/openocd");
 936         add_script_search_dir("/rom");
 937         return ERROR_OK;
 938 }
 939
 940 int ioutil_init(struct command_context *cmd_ctx);
 941
 942 int main(int argc, char *argv[])
 943 {
 944         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 945          * need to allocate towards the end of the heap.  */
 946
 947 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 948         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 949         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 950         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 951 #endif
 952
 953         int err;
 954
 955         atexit(keep_webserver);
 956
 957         diag_init_putc(_zylinjtag_diag_write_char);
 958         // We want this in the log.
 959         diag_printf("Zylin ZY1000.\n");
 960
 961         err = mount("", "/ram", "ramfs");
 962         if (err < 0)
 963         {
 964                 diag_printf("unable to mount ramfs\n");
 965         }
 966         chdir("/ram");
 967
 968         char address[16];
 969         sprintf(address, "%p", &filedata[0]);
 970         err = mount(address, "/rom", "romfs");
 971         if (err < 0)
 972         {
 973                 diag_printf("unable to mount /rom\n");
 974         }
 975
 976         err = mount("", "/log", "logfs");
 977         if (err < 0)
 978         {
 979                 diag_printf("unable to mount logfs\n");
 980         }
 981
 982         err = mount("", "/tftp", "tftpfs");
 983         if (err < 0)
 984         {
 985                 diag_printf("unable to mount logfs\n");
 986         }
 987
 988         log = fopen("/log/log", "w");
 989         if (log == NULL)
 990         {
 991                 diag_printf("Could not open log file /ram/log\n");
 992                 exit(-1);
 993         }
 994
 995
 996         copydir("/rom", "/ram/cgi");
 997
 998         err = mount("/dev/flash1", "/config", "jffs2");
 999         if (err < 0)
1000         {
1001                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1002                 err = mount("", "/config", "ramfs");
1003                 if (err < 0)
1004                 {
1005                         diag_printf("unable to mount /config as ramdisk.\n");
1006                         reboot();
1007                 }
1008         }
1009         else
1010         {
1011                 /* are we using a ram disk instead of a flash disk? This is used
1012                  * for ZY1000 live demo...
1013                  *
1014                  * copy over flash disk to ram block device
1015                  */
1016                 if (boolParam("ramdisk"))
1017                 {
1018                         diag_printf("Unmounting /config from flash and using ram instead\n");
1019                         err = umount("/config");
1020                         if (err < 0)
1021                         {
1022                                 diag_printf("unable to unmount jffs\n");
1023                                 reboot();
1024                         }
1025
1026                         err = mount("/dev/flash1", "/config2", "jffs2");
1027                         if (err < 0)
1028                         {
1029                                 diag_printf("unable to mount jffs\n");
1030                                 reboot();
1031                         }
1032
1033                         err = mount("", "/config", "ramfs");
1034                         if (err < 0)
1035                         {
1036                                 diag_printf("unable to mount ram block device\n");
1037                                 reboot();
1038                         }
1039
1040                         //              copydir("/config2", "/config");
1041                         copyfile("/config2/ip", "/config/ip");
1042                         copydir("/config2/settings", "/config/settings");
1043
1044                         umount("/config2");
1045                 }
1046         }
1047
1048         mkdir(zylin_config_dir, 0777);
1049         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1050         mkdir(dirname, 0777);
1051         free(dirname);
1052         dirname = alloc_printf("%s/board", zylin_config_dir);
1053         mkdir(dirname, 0777);
1054         free(dirname);
1055         dirname = alloc_printf("%s/event", zylin_config_dir);
1056         mkdir(dirname, 0777);
1057         free(dirname);
1058
1059         logAllToSerial = boolParam("logserial");
1060
1061         // We need the network & web server in case there is something wrong with
1062         // the config files that invoke exit()
1063         zylinjtag_startNetwork();
1064
1065         /* we're going to access the jim interpreter from here on... */
1066         openocd_sleep_postlude();
1067         startUart();
1068
1069         add_default_dirs();
1070
1071         /* initialize commandline interface */
1072         struct command_context * cmd_ctx;
1073         cmd_ctx = setup_command_handler();
1074         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1075         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1076
1077 #if BUILD_IOUTIL
1078         if (ioutil_init(cmd_ctx) != ERROR_OK)
1079         {
1080                 return EXIT_FAILURE;
1081         }
1082 #endif
1083
1084
1085 #ifdef CYGPKG_PROFILE_GPROF
1086         register_command(cmd_ctx, NULL, "ecosboard_profile", eCosBoard_handle_eCosBoard_profile_command,
1087                         COMMAND_ANY, NULL);
1088 #endif
1089
1090         register_command(cmd_ctx, NULL, "uart", handle_uart_command, COMMAND_ANY,
1091                         "uart <baud>  - forward uart on port 5555");
1092
1093         int errVal;
1094         errVal = log_init(cmd_ctx);
1095         if (errVal != ERROR_OK)
1096         {
1097                 diag_printf("log_init() failed %d\n", errVal);
1098                 exit(-1);
1099         }
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         /* we MUST always run the init command as it will launch telnet sessions */
1117         command_run_line(cmd_ctx, "init");
1118
1119         // FIX!!!  Yuk!
1120         // diag_printf() is really invoked from many more places than we trust it
1121         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1122         //
1123         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1124         // fingers that it doesn't cause any crashes.
1125         diag_printf("Init complete, GDB & telnet servers launched.\n");
1126         command_set_output_handler(cmd_ctx,
1127                         zy1000_configuration_output_handler_log, NULL);
1128         if (!logAllToSerial)
1129         {
1130                 serialLog = false;
1131         }
1132
1133         /* handle network connections */
1134         server_loop(cmd_ctx);
1135         openocd_sleep_prelude();
1136
1137         /* shut server down */
1138         server_quit();
1139
1140         /* free commandline interface */
1141         command_done(cmd_ctx);
1142         umount("/config");
1143
1144         exit(0);
1145         for (;;)
1146                 ;
1147 }
1148
1149 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1150 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1151 {
1152         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1153         return 0;
1154 }
1155
1156 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1157
1158 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1159 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1160
1161 #include <pkgconf/system.h>
1162 #include <pkgconf/hal.h>
1163 #include <pkgconf/kernel.h>
1164 #include <pkgconf/io_fileio.h>
1165 #include <pkgconf/fs_rom.h>
1166
1167 #include <cyg/kernel/ktypes.h>         // base kernel types
1168 #include <cyg/infra/cyg_trac.h>        // tracing macros
1169 #include <cyg/infra/cyg_ass.h>         // assertion macros
1170 #include <cyg/fileio/fileio.h>
1171 #include <cyg/kernel/kapi.h>
1172 #include <cyg/infra/diag.h>
1173
1174 //==========================================================================
1175 // Eventually we want to eXecute In Place from the ROM in a protected
1176 // environment, so we'll need executables to be aligned to a boundary
1177 // suitable for MMU protection. A suitable boundary would be the 4k
1178 // boundary in all the CPU architectures I am currently aware of.
1179
1180 // Forward definitions
1181
1182 // Filesystem operations
1183 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1184 static int tftpfs_umount(cyg_mtab_entry *mte);
1185 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1186                 int mode, cyg_file *fte);
1187 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1188 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1189
1190 // File operations
1191 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1192 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1193 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1194
1195 //==========================================================================
1196 // Filesystem table entries
1197
1198 // -------------------------------------------------------------------------
1199 // Fstab entry.
1200 // This defines the entry in the filesystem table.
1201 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1202 // we should never block in any filesystem operations.
1203 #if 1
1204 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1205                 CYG_SYNCMODE_NONE,
1206                 tftpfs_mount,
1207                 tftpfs_umount,
1208                 tftpfs_open,
1209                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1210                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1211                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1212                 (cyg_fsop_rename *)cyg_fileio_erofs,
1213                 (cyg_fsop_link *)cyg_fileio_erofs,
1214                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1215                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1216                 (cyg_fsop_stat *)cyg_fileio_erofs,
1217                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1218                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1219 #endif
1220
1221 // -------------------------------------------------------------------------
1222 // mtab entry.
1223 // This defines a single ROMFS loaded into ROM at the configured address
1224 //
1225 // MTAB_ENTRY(rom_mte,  // structure name
1226 //              "/rom",         // mount point
1227 //              "romfs",        // FIlesystem type
1228 //              "",             // hardware device
1229 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1230 //);
1231
1232
1233 // -------------------------------------------------------------------------
1234 // File operations.
1235 // This set of file operations are used for normal open files.
1236
1237 static cyg_fileops tftpfs_fileops =
1238 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1239                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1240                 tftpfs_fo_fsync, tftpfs_fo_close,
1241                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1242                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1243                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1244
1245 // -------------------------------------------------------------------------
1246 // tftpfs_mount()
1247 // Process a mount request. This mainly finds root for the
1248 // filesystem.
1249
1250 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1251 {
1252         return ENOERR;
1253 }
1254
1255 static int tftpfs_umount(cyg_mtab_entry *mte)
1256 {
1257         return ENOERR;
1258 }
1259
1260 struct Tftp
1261 {
1262         int write;
1263         int readFile;
1264         cyg_uint8 *mem;
1265         int actual;
1266         char *server;
1267         char *file;
1268 };
1269
1270 static void freeTftp(struct Tftp *t)
1271 {
1272         if (t == NULL)
1273                 return;
1274         if (t->mem)
1275                 free(t->mem);
1276         if (t->server)
1277                 free(t->server);
1278         if (t->file)
1279                 free(t->file);
1280         free(t);
1281 }
1282
1283 static const int tftpMaxSize = 8192 * 1024;
1284 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1285                 int mode, cyg_file *file)
1286 {
1287         struct Tftp *tftp;
1288         tftp = malloc(sizeof(struct Tftp));
1289         if (tftp == NULL)
1290                 return EMFILE;
1291         memset(tftp, 0, sizeof(struct Tftp));
1292
1293         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1294         file->f_type = CYG_FILE_TYPE_FILE;
1295         file->f_ops = &tftpfs_fileops;
1296         file->f_offset = 0;
1297         file->f_data = 0;
1298         file->f_xops = 0;
1299
1300         tftp->mem = malloc(tftpMaxSize);
1301         if (tftp->mem == NULL)
1302         {
1303                 freeTftp(tftp);
1304                 return EMFILE;
1305         }
1306
1307         char *server = strchr(name, '/');
1308         if (server == NULL)
1309         {
1310                 freeTftp(tftp);
1311                 return EMFILE;
1312         }
1313
1314         tftp->server = malloc(server - name + 1);
1315         if (tftp->server == NULL)
1316         {
1317                 freeTftp(tftp);
1318                 return EMFILE;
1319         }
1320         strncpy(tftp->server, name, server - name);
1321         tftp->server[server - name] = 0;
1322
1323         tftp->file = strdup(server + 1);
1324         if (tftp->file == NULL)
1325         {
1326                 freeTftp(tftp);
1327                 return EMFILE;
1328         }
1329
1330         file->f_data = (CYG_ADDRWORD) tftp;
1331
1332         return ENOERR;
1333 }
1334
1335 static int fetchTftp(struct Tftp *tftp)
1336 {
1337         if (!tftp->readFile)
1338         {
1339                 int err;
1340                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1341                                 tftpMaxSize, TFTP_OCTET, &err);
1342
1343                 if (tftp->actual < 0)
1344                 {
1345                         return EMFILE;
1346                 }
1347                 tftp->readFile = 1;
1348         }
1349         return ENOERR;
1350 }
1351
1352 // -------------------------------------------------------------------------
1353 // tftpfs_fo_write()
1354 // Read data from file.
1355
1356 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1357 {
1358         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1359
1360         if (fetchTftp(tftp) != ENOERR)
1361                 return EMFILE;
1362
1363         int i;
1364         off_t pos = fp->f_offset;
1365         int resid = 0;
1366         for (i = 0; i < uio->uio_iovcnt; i++)
1367         {
1368                 cyg_iovec *iov = &uio->uio_iov[i];
1369                 char *buf = (char *) iov->iov_base;
1370                 off_t len = iov->iov_len;
1371
1372                 if (len + pos > tftp->actual)
1373                 {
1374                         len = tftp->actual - pos;
1375                 }
1376                 resid += iov->iov_len - len;
1377
1378                 memcpy(buf, tftp->mem + pos, len);
1379                 pos += len;
1380
1381         }
1382         uio->uio_resid = resid;
1383         fp->f_offset = pos;
1384
1385         return ENOERR;
1386 }
1387
1388 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1389 {
1390         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1391
1392         int i;
1393         off_t pos = fp->f_offset;
1394         int resid = 0;
1395         for (i = 0; i < uio->uio_iovcnt; i++)
1396         {
1397                 cyg_iovec *iov = &uio->uio_iov[i];
1398                 char *buf = (char *) iov->iov_base;
1399                 off_t len = iov->iov_len;
1400
1401                 if (len + pos > tftpMaxSize)
1402                 {
1403                         len = tftpMaxSize - pos;
1404                 }
1405                 resid += iov->iov_len - len;
1406
1407                 memcpy(tftp->mem + pos, buf, len);
1408                 pos += len;
1409
1410         }
1411         uio->uio_resid = resid;
1412         fp->f_offset = pos;
1413
1414         tftp->write = 1;
1415
1416         return ENOERR;
1417 }
1418
1419 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1420 {
1421         int error = ENOERR;
1422         return error;
1423 }
1424
1425 // -------------------------------------------------------------------------
1426 // romfs_fo_close()
1427 // Close a file. We just clear out the data pointer.
1428
1429 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1430 {
1431         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1432         int error = ENOERR;
1433
1434         if (tftp->write)
1435         {
1436                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1437                                 TFTP_OCTET, &error);
1438         }
1439
1440         freeTftp(tftp);
1441         fp->f_data = 0;
1442         return error;
1443 }
1444
1445 // -------------------------------------------------------------------------
1446 // romfs_fo_lseek()
1447 // Seek to a new file position.
1448
1449 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1450 {
1451         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1452         off_t pos = *apos;
1453
1454         if (fetchTftp(tftp) != ENOERR)
1455                 return EMFILE;
1456
1457         switch (whence)
1458         {
1459         case SEEK_SET:
1460                 // Pos is already where we want to be.
1461                 break;
1462
1463         case SEEK_CUR:
1464                 // Add pos to current offset.
1465                 pos += fp->f_offset;
1466                 break;
1467
1468         case SEEK_END:
1469                 // Add pos to file size.
1470                 pos += tftp->actual;
1471                 break;
1472
1473         default:
1474                 return EINVAL;
1475         }
1476
1477         // Check that pos is still within current file size, or at the
1478         // very end.
1479         if (pos < 0 || pos > tftp->actual)
1480                 return EINVAL;
1481
1482         // All OK, set fp offset and return new position.
1483         *apos = fp->f_offset = pos;
1484
1485         return ENOERR;
1486 }
1487
1488 void usleep(int us)
1489 {
1490         if (us > 10000)
1491                 cyg_thread_delay(us / 10000 + 1);
1492         else
1493                 HAL_DELAY_US(us);
1494 }
1495
1496 // Chunked version.
1497 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1498 {
1499         cyg_httpd_start_chunked("text");
1500         if (logCount >= logSize)
1501         {
1502                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1503                                 - logCount % logSize);
1504         }
1505         cyg_httpd_write_chunked(logBuffer, writePtr);
1506         cyg_httpd_end_chunked();
1507         return -1;
1508 }
1509
1510 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1511
1512 // Filesystem operations
1513 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1514 static int logfs_umount(cyg_mtab_entry *mte);
1515 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1516                 int mode, cyg_file *fte);
1517 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1518
1519 // File operations
1520 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1521 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1522
1523 #include <cyg/io/devtab.h>
1524
1525 //==========================================================================
1526 // Filesystem table entries
1527
1528 // -------------------------------------------------------------------------
1529 // Fstab entry.
1530 // This defines the entry in the filesystem table.
1531 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1532 // we should never block in any filesystem operations.
1533 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1534                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1535                 logfs_mount,
1536                 logfs_umount,
1537                 logfs_open,
1538                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1539                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1540                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1541                 (cyg_fsop_rename *)cyg_fileio_erofs,
1542                 (cyg_fsop_link *)cyg_fileio_erofs,
1543                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1544                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1545                 (cyg_fsop_stat *)cyg_fileio_erofs,
1546                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1547                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1548
1549 // -------------------------------------------------------------------------
1550 // File operations.
1551 // This set of file operations are used for normal open files.
1552
1553 static cyg_fileops logfs_fileops =
1554 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1555                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1556                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1557                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1558                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1559                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1560
1561 // -------------------------------------------------------------------------
1562 // logfs_mount()
1563 // Process a mount request. This mainly finds root for the
1564 // filesystem.
1565
1566 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1567 {
1568         return ENOERR;
1569 }
1570
1571 static int logfs_umount(cyg_mtab_entry *mte)
1572 {
1573         return ENOERR;
1574 }
1575
1576 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1577                 int mode, cyg_file *file)
1578 {
1579         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1580         file->f_type = CYG_FILE_TYPE_FILE;
1581         file->f_ops = &logfs_fileops;
1582         file->f_offset = 0;
1583         file->f_data = 0;
1584         file->f_xops = 0;
1585         return ENOERR;
1586 }
1587
1588 // -------------------------------------------------------------------------
1589 // logfs_fo_write()
1590 // Write data to file.
1591
1592 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1593 {
1594         int i;
1595         for (i = 0; i < uio->uio_iovcnt; i++)
1596         {
1597                 cyg_iovec *iov = &uio->uio_iov[i];
1598                 char *buf = (char *) iov->iov_base;
1599                 off_t len = iov->iov_len;
1600
1601                 diag_write(buf, len);
1602         }
1603         uio->uio_resid = 0;
1604
1605         return ENOERR;
1606 }
1607 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1608 {
1609         return ENOERR;
1610 }
1611
1612 // -------------------------------------------------------------------------
1613 // romfs_fo_close()
1614 // Close a file. We just clear out the data pointer.
1615
1616 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1617 {
1618         return ENOERR;
1619 }
1620
1621 int loadFile(const char *fileName, void **data, int *len);
1622
1623 /* boolean parameter stored on config */
1624 int boolParam(char *var)
1625 {
1626         bool result = false;
1627         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1628         if (name == NULL)
1629                 return result;
1630
1631         void *data;
1632         int len;
1633         if (loadFile(name, &data, &len) == ERROR_OK)
1634         {
1635                 if (len > 1)
1636                         len = 1;
1637                 result = strncmp((char *) data, "1", len) == 0;
1638                 free(data);
1639         }
1640         free(name);
1641         return result;
1642 }
1643