git.gag.com Git - fw/openocd/blob - src/ecosboard.c

   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 <helper/types.h>
  25 #include <jtag/jtag.h>
  26 #include <helper/ioutil.h>
  27 #include <helper/configuration.h>
  28
  29 #include <server/server.h>
  30 #include <server/telnet_server.h>
  31 #include <server/gdb_server.h>
  32 #include <openocd.h>
  33
  34 #include <helper/time_support.h>
  35
  36 #include <sys/time.h>
  37 #include <stdio.h>
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41 #include <errno.h>
  42
  43 #include <cyg/io/flash.h>
  44 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  45 #include <network.h>
  46
  47 #include <fcntl.h>
  48 #include <sys/stat.h>
  49 #include <cyg/fileio/fileio.h>
  50 #include <dirent.h>
  51 #include <cyg/athttpd/http.h>
  52 #include <cyg/athttpd/socket.h>
  53 #include <cyg/athttpd/handler.h>
  54 #include <cyg/athttpd/cgi.h>
  55 #include <cyg/athttpd/forms.h>
  56 #include <cyg/discover/discover.h>
  57 #include <cyg/io/io.h>
  58 #include <cyg/io/serialio.h>
  59 #include <netinet/tcp.h>
  60 #include <cyg/hal/hal_diag.h>
  61
  62 #include "rom.h"
  63
  64 #ifdef CYGPKG_HAL_NIOS2
  65 #include <cyg/hal/io.h>
  66 #define ZY1000_SER_DEV "/dev/uart_0"
  67 #else
  68 #define ZY1000_SER_DEV "/dev/ser0"
  69
  70 #endif
  71
  72
  73 #define MAX_IFS 64
  74 #if defined(CYGPKG_NET_FREEBSD_STACK)
  75 #include <tftp_support.h>
  76 /* posix compatibility broken*/
  77 struct tftpd_fileops fileops =
  78 {
  79         (int (*)(const char *, int))open,
  80         close,
  81         (int (*)(int, const void *, int))write,
  82         (int (*)(int, void *, int))read
  83 };
  84
  85 #endif
  86
  87
  88 void diag_write(char *buf, int len)
  89 {
  90         int j;
  91         for (j = 0; j < len; j++)
  92         {
  93                 diag_printf("%c", buf[j]);
  94         }
  95 }
  96
  97 static bool serialLog = true;
  98 static bool writeLog = true;
  99
 100 char hwaddr[512];
 101
 102
 103 extern struct flash_driver *flash_drivers[];
 104
 105 #ifdef CYGPKG_PROFILE_GPROF
 106 #include <cyg/profile/profile.h>
 107
 108 extern char _stext, _etext; // Defined by the linker
 109
 110 static char *start_of_code=&_stext;
 111 static char *end_of_code=&_etext;
 112
 113 void start_profile(void)
 114 {
 115         // This starts up the system-wide profiling, gathering
 116         // profile information on all of the code, with a 16 byte
 117         // "bucket" size, at a rate of 100us/profile hit.
 118         // Note: a bucket size of 16 will give pretty good function
 119         //       resolution.  Much smaller and the buffer becomes
 120         //       much too large for very little gain.
 121         // Note: a timer period of 100us is also a reasonable
 122         //       compromise.  Any smaller and the overhead of
 123         //       handling the timter (profile) interrupt could
 124         //       swamp the system.  A fast processor might get
 125         //       by with a smaller value, but a slow one could
 126         //       even be swamped by this value.  If the value is
 127         //       too large, the usefulness of the profile is reduced.
 128
 129         // no more interrupts than 1/10ms.
 130         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 131         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 132         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 133 }
 134 #endif
 135
 136 static FILE *log;
 137
 138 static char reboot_stack[2048];
 139
 140 static void zylinjtag_reboot(cyg_addrword_t data)
 141 {
 142         serialLog = true;
 143         diag_printf("Rebooting in 500 ticks..\n");
 144         cyg_thread_delay(500);
 145         diag_printf("Unmounting /config..\n");
 146         umount("/config");
 147         diag_printf("Rebooting..\n");
 148 #ifdef CYGPKG_HAL_NIOS2
 149         /* This will reboot & reconfigure the FPGA from the bootloader
 150          * and on.
 151          */
 152         IOWR(REMOTE_UPDATE_BASE, 0x20, 0x1);
 153 #else
 154         HAL_PLATFORM_RESET();
 155 #endif
 156 }
 157 static cyg_thread zylinjtag_thread_object;
 158 static cyg_handle_t zylinjtag_thread_handle;
 159
 160 void reboot(void)
 161 {
 162         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 163                         (void *) reboot_stack, sizeof(reboot_stack),
 164                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 165         cyg_thread_resume(zylinjtag_thread_handle);
 166 }
 167
 168 static char zylinjtag_reboot_port_stack[2048];
 169 static cyg_thread zylinjtag_reboot_port_thread_object;
 170 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 171
 172 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 173 {
 174         int so_reuseaddr_option = 1;
 175
 176         int fd;
 177         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 178         {
 179                 LOG_ERROR("error creating socket: %s", strerror(errno));
 180                 exit(-1);
 181         }
 182
 183         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 184                         sizeof(int));
 185
 186         struct sockaddr_in sin;
 187         unsigned int address_size;
 188         address_size = sizeof(sin);
 189         memset(&sin, 0, sizeof(sin));
 190         sin.sin_family = AF_INET;
 191         sin.sin_addr.s_addr = INADDR_ANY;
 192         sin.sin_port = htons(1234);
 193
 194         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 195         {
 196                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 197                 exit(-1);
 198         }
 199
 200         if (listen(fd, 1) == -1)
 201         {
 202                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 203                 exit(-1);
 204         }
 205         //      socket_nonblock(fd);
 206
 207
 208         accept(fd, (struct sockaddr *) &sin, &address_size);
 209
 210         diag_printf("Got reboot signal on port 1234");
 211
 212         reboot();
 213
 214 }
 215
 216 void reboot_port(void)
 217 {
 218         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 219                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 220                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 221         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 222 }
 223
 224 int configuration_output_handler(struct command_context *context,
 225                 const char* line)
 226 {
 227         diag_printf("%s", line);
 228
 229         return ERROR_OK;
 230 }
 231
 232 int zy1000_configuration_output_handler_log(struct command_context *context,
 233                 const char* line)
 234 {
 235         LOG_USER_N("%s", line);
 236
 237         return ERROR_OK;
 238 }
 239
 240 #ifdef CYGPKG_PROFILE_GPROF
 241 //extern int64_t totaltime;
 242
 243 static int zylinjtag_Jim_Command_profile(Jim_Interp *interp, int argc,
 244                 Jim_Obj * const *argv)
 245 {
 246         if ((argc == 2) && (strcmp(Jim_GetString(argv[1], NULL), "stats")==0))
 247         {
 248 //              profile_off();
 249                 //LOG_USER("Stats %dms sleeping in select()", (int)totaltime);
 250         } else
 251         {
 252                 LOG_USER("Profiling started");
 253                 start_profile();
 254                 //totaltime = 0;
 255         }
 256         return ERROR_OK;
 257 }
 258
 259 #endif
 260
 261 externC void phi_init_all_network_interfaces(void);
 262
 263 struct command_context *cmd_ctx;
 264
 265 static bool webRunning = false;
 266
 267 void keep_webserver(void)
 268 {
 269         // Target initialisation is only attempted at startup, so we sleep forever and
 270         // let the http server bail us out(i.e. get config files set up).
 271         diag_printf("OpenOCD has invoked exit().\n"
 272                 "Use web server to correct any configuration settings and reboot.\n");
 273         if (!webRunning)
 274                 reboot();
 275
 276         // exit() will terminate the current thread and we we'll then sleep eternally or
 277         // we'll have a reboot scheduled.
 278 }
 279
 280 extern void printDccChar(char c);
 281
 282 static char logBuffer[128 * 1024];
 283 static const int logSize = sizeof(logBuffer);
 284 int writePtr = 0;
 285 int logCount = 0;
 286
 287 void _zylinjtag_diag_write_char(char c, void **param)
 288 {
 289         if (writeLog)
 290         {
 291                 logBuffer[writePtr] = c;
 292                 writePtr = (writePtr + 1) % logSize;
 293                 logCount++;
 294         }
 295         if (serialLog)
 296         {
 297                 if (c == '\n')
 298                 {
 299                         HAL_DIAG_WRITE_CHAR('\r');
 300                 }
 301                 HAL_DIAG_WRITE_CHAR(c);
 302         }
 303
 304 #ifdef CYGPKG_HAL_ZYLIN_PHI
 305         printDccChar(c);
 306 #endif
 307 }
 308
 309 void copyfile(char *name2, char *name1);
 310
 311 void copydir(char *name, char *destdir);
 312
 313 #if 0
 314 MTAB_ENTRY(romfs_mte1,
 315                 "/rom",
 316                 "romfs",
 317                 "",
 318                 (CYG_ADDRWORD) &filedata[0]);
 319 #endif
 320
 321 void openocd_sleep_prelude(void)
 322 {
 323         cyg_mutex_unlock(&httpstate.jim_lock);
 324 }
 325
 326 void openocd_sleep_postlude(void)
 327 {
 328         cyg_mutex_lock(&httpstate.jim_lock);
 329 }
 330
 331 void format(void)
 332 {
 333 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
 334         diag_printf("Formatting JFFS2...\n");
 335
 336         cyg_io_handle_t handle;
 337
 338         Cyg_ErrNo err;
 339         err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
 340         if (err != ENOERR)
 341         {
 342                 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
 343                 reboot();
 344         }
 345
 346         cyg_uint32 len;
 347         cyg_io_flash_getconfig_devsize_t ds;
 348         len = sizeof(ds);
 349         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
 350         if (err != ENOERR)
 351         {
 352                 diag_printf("Flash error cyg_io_get_config %d\n", err);
 353                 reboot();
 354         }
 355
 356         cyg_io_flash_getconfig_erase_t e;
 357         len = sizeof(e);
 358
 359         e.offset = 0;
 360         e.len = ds.dev_size;
 361
 362         diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
 363         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
 364         if (err != ENOERR)
 365         {
 366                 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
 367                 reboot();
 368         }
 369
 370         diag_printf("Flash formatted successfully\n");
 371 #endif
 372
 373         reboot();
 374 }
 375
 376 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
 377                 Jim_Obj * const *argv)
 378 {
 379         if (argc != 1)
 380         {
 381                 return JIM_ERR;
 382         }
 383
 384         format();
 385         for (;;)
 386                 ;
 387 }
 388
 389 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
 390                 Jim_Obj * const *argv)
 391 {
 392         cyg_handle_t thread = 0;
 393         cyg_uint16 id = 0;
 394         Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
 395
 396         /* Loop over the threads, and generate a table row for
 397          * each.
 398          */
 399         while (cyg_thread_get_next(&thread, &id))
 400         {
 401                 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
 402
 403                 cyg_thread_info info;
 404                 char *state_string;
 405
 406                 cyg_thread_get_info(thread, id, &info);
 407
 408                 if (info.name == NULL)
 409                         info.name = "<no name>";
 410
 411                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 412                                 info.name, strlen(info.name)));
 413
 414                 /* Translate the state into a string.
 415                  */
 416                 if (info.state == 0)
 417                         state_string = "RUN";
 418                 else if (info.state & 0x04)
 419                         state_string = "SUSP";
 420                 else
 421                         switch (info.state & 0x1b)
 422                         {
 423                         case 0x01:
 424                                 state_string = "SLEEP";
 425                                 break;
 426                         case 0x02:
 427                                 state_string = "CNTSLEEP";
 428                                 break;
 429                         case 0x08:
 430                                 state_string = "CREATE";
 431                                 break;
 432                         case 0x10:
 433                                 state_string = "EXIT";
 434                                 break;
 435                         default:
 436                                 state_string = "????";
 437                                 break;
 438                         }
 439
 440                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 441                                 state_string, strlen(state_string)));
 442
 443                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
 444                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 445                                 info.set_pri));
 446                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 447                                 info.cur_pri));
 448
 449                 Jim_ListAppendElement(interp, threads, threadObj);
 450         }
 451         Jim_SetResult(interp, threads);
 452
 453         return JIM_OK;
 454 }
 455
 456 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
 457                 Jim_Obj * const *argv)
 458 {
 459         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 460
 461         if (logCount >= logSize)
 462         {
 463                 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
 464                                 % logSize, logSize - logCount % logSize);
 465         }
 466         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
 467
 468         Jim_SetResult(interp, tclOutput);
 469         return JIM_OK;
 470 }
 471
 472 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
 473                 Jim_Obj * const *argv)
 474 {
 475         reboot();
 476         return JIM_OK;
 477 }
 478
 479 static void zylinjtag_startNetwork(void)
 480 {
 481         // Bring TCP/IP up immediately before we're ready to accept commands.
 482         //
 483         // That is as soon as a PING responds, we're accepting telnet sessions.
 484 #if defined(CYGPKG_NET_FREEBSD_STACK)
 485         phi_init_all_network_interfaces();
 486 #else
 487         lwip_init();
 488 #endif
 489         if (!eth0_up)
 490         {
 491                 diag_printf("Network not up and running\n");
 492                 exit(-1);
 493         }
 494
 495         /* very first thing we want is a reboot capability */
 496         reboot_port();
 497
 498 #if defined(CYGPKG_NET_FREEBSD_STACK)
 499         /*start TFTP*/
 500         tftpd_start(69, &fileops);
 501 #endif
 502
 503         cyg_httpd_init_tcl_interpreter();
 504
 505         Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
 506                         NULL, NULL);
 507         Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
 508                         zylinjtag_Jim_Command_reboot, NULL, NULL);
 509         Jim_CreateCommand(httpstate.jim_interp, "threads",
 510                         zylinjtag_Jim_Command_threads, NULL, NULL);
 511         Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
 512                         zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
 513
 514         cyg_httpd_start();
 515
 516         webRunning = true;
 517
 518         diag_printf("Web server running\n");
 519
 520         int s;
 521         struct ifreq ifr;
 522         s = socket(AF_INET, SOCK_DGRAM, 0);
 523         if (s >= 0)
 524         {
 525                 strcpy(ifr.ifr_name, "eth0");
 526                 int res;
 527                 res = ioctl(s, SIOCGIFHWADDR, &ifr);
 528                 close(s);
 529
 530                 if (res < 0)
 531                 {
 532                         diag_printf("Can't obtain MAC address\n");
 533                         reboot();
 534                 }
 535         }
 536
 537         sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
 538                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
 539                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
 540                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
 541                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
 542                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
 543                         (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
 544
 545         discover_message
 546                         = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
 547
 548         discover_launch();
 549 }
 550
 551 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
 552                 cyg_addrword_t info)
 553 {
 554         writeLog = false;
 555         serialLog = true;
 556         char *infoStr = "unknown";
 557         switch (exception)
 558         {
 559 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 560         case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
 561         infoStr = "undefined instruction";
 562         break;
 563         case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
 564         infoStr = "software interrupt";
 565         break;
 566         case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
 567         infoStr = "abort prefetch";
 568         break;
 569         case CYGNUM_HAL_VECTOR_ABORT_DATA:
 570         infoStr = "abort data";
 571         break;
 572 #endif
 573         default:
 574                 break;
 575         }
 576
 577         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 578
 579         diag_printf("Dumping log\n---\n");
 580         if (logCount >= logSize)
 581         {
 582                 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
 583         }
 584         diag_write(logBuffer, writePtr);
 585
 586         diag_printf("---\nLogdump complete.\n");
 587         diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
 588         diag_printf("\n---\nRebooting\n");
 589         HAL_PLATFORM_RESET();
 590
 591 }
 592
 593 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 594 static void setHandler(cyg_code_t exception)
 595 {
 596         cyg_exception_handler_t *old_handler;
 597         cyg_addrword_t old_data;
 598
 599         cyg_exception_set_handler(exception, print_exception_handler, 0,
 600                         &old_handler, &old_data);
 601 }
 602 #endif
 603
 604 static cyg_thread zylinjtag_uart_thread_object;
 605 static cyg_handle_t zylinjtag_uart_thread_handle;
 606 static char uart_stack[4096];
 607
 608 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
 609 static char backwardBuffer[1024];
 610
 611 void setNoDelay(int session, int flag)
 612 {
 613 #if 1
 614         // This decreases latency dramatically for e.g. GDB load which
 615         // does not have a sliding window protocol
 616         //
 617         // Can cause *lots* of TCP/IP packets to be sent and it would have
 618         // to be enabled/disabled on the fly to avoid the CPU being
 619         // overloaded...
 620         setsockopt(session, /* socket affected */
 621         IPPROTO_TCP, /* set option at TCP level */
 622         TCP_NODELAY, /* name of option */
 623         (char *) &flag, /* the cast is historical
 624          cruft */
 625         sizeof(int)); /* length of option value */
 626 #endif
 627 }
 628
 629 #define TEST_TCPIP() 0
 630
 631 #if TEST_TCPIP
 632 struct
 633 {
 634         int req;
 635         int actual;
 636         int req2;
 637         int actual2;
 638 } tcpipSent[512 * 1024];
 639 int cur;
 640 #endif
 641
 642 static void zylinjtag_uart(cyg_addrword_t data)
 643 {
 644         int so_reuseaddr_option = 1;
 645
 646         int fd;
 647         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 648         {
 649                 LOG_ERROR("error creating socket: %s", strerror(errno));
 650                 exit(-1);
 651         }
 652
 653         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 654                         sizeof(int));
 655
 656         struct sockaddr_in sin;
 657         unsigned int address_size;
 658         address_size = sizeof(sin);
 659         memset(&sin, 0, sizeof(sin));
 660         sin.sin_family = AF_INET;
 661         sin.sin_addr.s_addr = INADDR_ANY;
 662         sin.sin_port = htons(5555);
 663
 664         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 665         {
 666                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 667                 exit(-1);
 668         }
 669
 670         if (listen(fd, 1) == -1)
 671         {
 672                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 673                 exit(-1);
 674         }
 675         //      socket_nonblock(fd);
 676
 677
 678         for (;;)
 679         {
 680                 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
 681                 if (session < 0)
 682                 {
 683                         continue;
 684                 }
 685
 686                 setNoDelay(session, 1);
 687                 int oldopts = fcntl(session, F_GETFL, 0);
 688                 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
 689
 690                 int serHandle = open(ZY1000_SER_DEV, O_RDWR | O_NONBLOCK);
 691                 if (serHandle < 0)
 692                 {
 693                         close(session);
 694                         continue;
 695                 }
 696
 697 #ifdef CYGPKG_PROFILE_GPROF
 698                 start_profile();
 699 #endif
 700                 size_t actual = 0;
 701                 size_t actual2 = 0;
 702                 size_t pos, pos2;
 703                 pos = 0;
 704                 pos2 = 0;
 705 #if TEST_TCPIP
 706                 cur = 0;
 707 #endif
 708                 for (;;)
 709                 {
 710                         fd_set write_fds;
 711                         fd_set read_fds;
 712                         FD_ZERO(&write_fds);
 713                         FD_ZERO(&read_fds);
 714                         int fd_max = -1;
 715                         FD_SET(session, &read_fds);
 716                         fd_max = session;
 717                         FD_SET(serHandle, &read_fds);
 718                         if (serHandle > fd_max)
 719                         {
 720                                 fd_max = serHandle;
 721                         }
 722                         /* Wait... */
 723
 724                         cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
 725                         if ((actual == 0) && (actual2 == 0))
 726                         {
 727                                 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
 728                                 if (retval <= 0)
 729                                 {
 730                                         break;
 731                                 }
 732                         }
 733
 734                         if (actual2 <= 0)
 735                         {
 736                                 memset(backwardBuffer, 's', sizeof(backwardBuffer));
 737                                 int t;
 738                                 t = read(serHandle, backwardBuffer,
 739                                                 sizeof(backwardBuffer));
 740                                 actual2 = t;
 741                                 if (t < 0)
 742                                 {
 743                                         if (errno != EAGAIN)
 744                                         {
 745                                                 goto closeSession;
 746                                         }
 747                                         actual2 = 0;
 748                                 }
 749                                 pos2 = 0;
 750                         }
 751
 752                         size_t y = 0;
 753                         if (actual2 > 0)
 754                         {
 755                                 int written = write(session, backwardBuffer + pos2, actual2);
 756                                 if (written <= 0)
 757                                         goto closeSession;
 758                                 actual2 -= written;
 759                                 pos2 += written;
 760                                 y = written;
 761                         }
 762
 763                         if (FD_ISSET(session, &read_fds)
 764                                         && (sizeof(forwardBuffer) > actual))
 765                         {
 766                                 // NB! Here it is important that we empty the TCP/IP read buffer
 767                                 // to make transmission tick right
 768                                 memmove(forwardBuffer, forwardBuffer + pos, actual);
 769                                 pos = 0;
 770                                 int t;
 771                                 // this will block if there is no data at all
 772                                 t = read_socket(session, forwardBuffer + actual,
 773                                                 sizeof(forwardBuffer) - actual);
 774                                 if (t <= 0)
 775                                 {
 776                                         goto closeSession;
 777                                 }
 778                                 actual += t;
 779                         }
 780
 781                         int y2 = 0;
 782                         if (actual > 0)
 783                         {
 784                                 /* Do not put things into the serial buffer if it has something to send
 785                                  * as that can cause a single byte to be sent at the time.
 786                                  *
 787                                  *
 788                                  */
 789                                 int written = write(serHandle, forwardBuffer + pos, actual);
 790                                 if (written < 0)
 791                                 {
 792                                         if (errno != EAGAIN)
 793                                         {
 794                                                 goto closeSession;
 795                                         }
 796                                         // The serial buffer is full
 797                                         written = 0;
 798                                 }
 799                                 else
 800                                 {
 801                                         actual -= written;
 802                                         pos += written;
 803                                 }
 804                                 y2 = written;
 805                         }
 806 #if TEST_TCPIP
 807                         if (cur < 1024)
 808                         {
 809                                 tcpipSent[cur].req = x;
 810                                 tcpipSent[cur].actual = y;
 811                                 tcpipSent[cur].req2 = x2;
 812                                 tcpipSent[cur].actual2 = y2;
 813                                 cur++;
 814                         }
 815 #endif
 816                 }
 817                 closeSession: close(session);
 818                 close(serHandle);
 819
 820 #if TEST_TCPIP
 821                 int i;
 822                 for (i = 0; i < 1024; i++)
 823                 {
 824                         diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
 825                                         tcpipSent[i].req2, tcpipSent[i].actual2);
 826
 827                 }
 828 #endif
 829         }
 830         close(fd);
 831
 832 }
 833
 834 void startUart(void)
 835 {
 836         cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
 837                         (void *) uart_stack, sizeof(uart_stack),
 838                         &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
 839         cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
 840         cyg_thread_resume(zylinjtag_uart_thread_handle);
 841 }
 842
 843 static int zylinjtag_Jim_Command_uart(Jim_Interp *interp, int argc,
 844                 Jim_Obj * const *argv)
 845 {
 846         static int current_baud = 38400;
 847         if (argc == 1)
 848         {
 849                 Jim_SetResult(interp, Jim_NewIntObj(interp, current_baud));
 850                 return JIM_OK;
 851         }
 852         else if (argc != 2)
 853         {
 854                 return JIM_ERR;
 855         }
 856
 857         long new_baudrate;
 858         if (Jim_GetLong(interp, argv[1], &new_baudrate) != JIM_OK)
 859                 return JIM_ERR;
 860
 861         current_baud = new_baudrate;
 862
 863         int baud;
 864         switch (current_baud)
 865         {
 866         case 9600:
 867                 baud = CYGNUM_SERIAL_BAUD_9600;
 868                 break;
 869         case 19200:
 870                 baud = CYGNUM_SERIAL_BAUD_19200;
 871                 break;
 872         case 38400:
 873                 baud = CYGNUM_SERIAL_BAUD_38400;
 874                 break;
 875         case 57600:
 876                 baud = CYGNUM_SERIAL_BAUD_57600;
 877                 break;
 878         case 115200:
 879                 baud = CYGNUM_SERIAL_BAUD_115200;
 880                 break;
 881         case 230400:
 882                 baud = CYGNUM_SERIAL_BAUD_230400;
 883                 break;
 884         default:
 885                 Jim_SetResult(interp, Jim_NewStringObj(interp, "unsupported baudrate", -1));
 886                 return JIM_ERR;
 887         }
 888
 889         cyg_serial_info_t buf;
 890         cyg_uint32 len = 1;
 891         //get existing serial configuration
 892         len = sizeof(cyg_serial_info_t);
 893         int err;
 894         cyg_io_handle_t serial_handle;
 895
 896         err = cyg_io_lookup(ZY1000_SER_DEV, &serial_handle);
 897         if (err != ENOERR)
 898         {
 899                 Jim_SetResult(interp, Jim_NewStringObj(interp, "Could not open serial port", -1));
 900                 return JIM_ERR;
 901         }
 902
 903         err = cyg_io_get_config(serial_handle,
 904                         CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
 905         err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
 906                         &len);
 907         if (err != ENOERR)
 908         {
 909                 Jim_SetResult(interp, Jim_NewStringObj(interp, "Failed to get serial port settings", -1));
 910                 return JIM_ERR;
 911         }
 912         buf.baud = baud;
 913
 914         err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
 915                         &len);
 916         if (err != ENOERR)
 917         {
 918                 Jim_SetResult(interp, Jim_NewStringObj(interp, "Failed to set serial port settings", -1));
 919                 return JIM_ERR;
 920         }
 921
 922         return JIM_OK;
 923 }
 924
 925 bool logAllToSerial = false;
 926
 927
 928 int boolParam(char *var);
 929
 930
 931 static const char *zylin_config_dir="/config/settings";
 932
 933 static int add_default_dirs(void)
 934 {
 935         add_script_search_dir(zylin_config_dir);
 936         add_script_search_dir("/rom/lib/openocd");
 937         add_script_search_dir("/rom");
 938         return ERROR_OK;
 939 }
 940
 941 int main(int argc, char *argv[])
 942 {
 943         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 944          * need to allocate towards the end of the heap.  */
 945
 946 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 947         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 948         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 949         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 950 #endif
 951
 952         int err;
 953
 954         atexit(keep_webserver);
 955
 956         diag_init_putc(_zylinjtag_diag_write_char);
 957         // We want this in the log.
 958 #ifdef CYGPKG_HAL_NIOS2
 959         diag_printf("Zylin ZY1000 PCB revc.\n");
 960 #else
 961         diag_printf("Zylin ZY1000 PCB revb.\n");
 962 #endif
 963
 964         err = mount("", "/ram", "ramfs");
 965         if (err < 0)
 966         {
 967                 diag_printf("unable to mount ramfs\n");
 968         }
 969         chdir("/ram");
 970
 971         char address[16];
 972         sprintf(address, "%p", &filedata[0]);
 973         err = mount(address, "/rom", "romfs");
 974         if (err < 0)
 975         {
 976                 diag_printf("unable to mount /rom\n");
 977         }
 978
 979         err = mount("", "/log", "logfs");
 980         if (err < 0)
 981         {
 982                 diag_printf("unable to mount logfs\n");
 983         }
 984
 985         err = mount("", "/tftp", "tftpfs");
 986         if (err < 0)
 987         {
 988                 diag_printf("unable to mount logfs\n");
 989         }
 990
 991         log = fopen("/log/log", "w");
 992         if (log == NULL)
 993         {
 994                 diag_printf("Could not open log file /ram/log\n");
 995                 exit(-1);
 996         }
 997
 998
 999         copydir("/rom", "/ram/cgi");
1000
1001 #ifdef CYGPKG_HAL_NIOS2
1002         cyg_flashaddr_t err_address;
1003 #define UNCACHED_EXT_FLASH_BASE (0x80000000 + EXT_FLASH_BASE)
1004         /* The revc flash is locked upon reset, unlock it */
1005 #ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
1006         if ((err = flash_unlock((void *) UNCACHED_EXT_FLASH_BASE, EXT_FLASH_SPAN,
1007                         (void **) &err_address)) != 0)
1008         {
1009                 diag_printf("Error: could not unlock flash\n");
1010         }
1011 #endif
1012 #endif
1013
1014
1015         err = mount("/dev/flash1", "/config", "jffs2");
1016         if (err < 0)
1017         {
1018                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1019                 err = mount("", "/config", "ramfs");
1020                 if (err < 0)
1021                 {
1022                         diag_printf("unable to mount /config as ramdisk.\n");
1023                         reboot();
1024                 }
1025         }
1026         else
1027         {
1028                 /* are we using a ram disk instead of a flash disk? This is used
1029                  * for ZY1000 live demo...
1030                  *
1031                  * copy over flash disk to ram block device
1032                  */
1033                 if (boolParam("ramdisk"))
1034                 {
1035                         diag_printf("Unmounting /config from flash and using ram instead\n");
1036                         err = umount("/config");
1037                         if (err < 0)
1038                         {
1039                                 diag_printf("unable to unmount jffs\n");
1040                                 reboot();
1041                         }
1042
1043                         err = mount("/dev/flash1", "/config2", "jffs2");
1044                         if (err < 0)
1045                         {
1046                                 diag_printf("unable to mount jffs\n");
1047                                 reboot();
1048                         }
1049
1050                         err = mount("", "/config", "ramfs");
1051                         if (err < 0)
1052                         {
1053                                 diag_printf("unable to mount ram block device\n");
1054                                 reboot();
1055                         }
1056
1057                         //              copydir("/config2", "/config");
1058                         copyfile("/config2/ip", "/config/ip");
1059                         copydir("/config2/settings", "/config/settings");
1060
1061                         umount("/config2");
1062                 }
1063         }
1064
1065         mkdir(zylin_config_dir, 0777);
1066         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1067         mkdir(dirname, 0777);
1068         free(dirname);
1069         dirname = alloc_printf("%s/board", zylin_config_dir);
1070         mkdir(dirname, 0777);
1071         free(dirname);
1072         dirname = alloc_printf("%s/event", zylin_config_dir);
1073         mkdir(dirname, 0777);
1074         free(dirname);
1075
1076         logAllToSerial = boolParam("logserial");
1077
1078         // We need the network & web server in case there is something wrong with
1079         // the config files that invoke exit()
1080         zylinjtag_startNetwork();
1081
1082         /* we're going to access the jim interpreter from here on... */
1083         openocd_sleep_postlude();
1084         startUart();
1085
1086         add_default_dirs();
1087
1088         /* initialize commandline interface */
1089         struct command_context * cmd_ctx;
1090         struct command_context *setup_command_handler(Jim_Interp *interp);
1091         cmd_ctx = setup_command_handler(httpstate.jim_interp);
1092         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1093         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1094
1095         if (ioutil_init(cmd_ctx) != ERROR_OK)
1096                 return EXIT_FAILURE;
1097
1098 #ifdef CYGPKG_PROFILE_GPROF
1099         Jim_CreateCommand(httpstate.jim_interp, "zy1000_profile", zylinjtag_Jim_Command_profile,
1100                         NULL, NULL);
1101 #endif
1102
1103         Jim_CreateCommand(httpstate.jim_interp, "zy1000_uart", zylinjtag_Jim_Command_uart, NULL, NULL);
1104
1105
1106         log_init();
1107
1108         set_log_output(cmd_ctx, log);
1109
1110         LOG_DEBUG("log init complete");
1111
1112         //      diag_printf("Executing config files\n");
1113
1114         if (logAllToSerial)
1115         {
1116                 diag_printf(
1117                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1118                 command_run_line(cmd_ctx, "debug_level 3");
1119         }
1120
1121         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1122
1123         int ret;
1124         ret = server_init(cmd_ctx);
1125         if (ERROR_OK != ret)
1126                 return EXIT_FAILURE;
1127
1128         /* we MUST always run the init command as it will launch telnet sessions */
1129         command_run_line(cmd_ctx, "init");
1130
1131         // FIX!!!  Yuk!
1132         // diag_printf() is really invoked from many more places than we trust it
1133         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1134         //
1135         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1136         // fingers that it doesn't cause any crashes.
1137         diag_printf("Init complete, GDB & telnet servers launched.\n");
1138         command_set_output_handler(cmd_ctx,
1139                         zy1000_configuration_output_handler_log, NULL);
1140         if (!logAllToSerial)
1141         {
1142                 serialLog = false;
1143         }
1144
1145         /* handle network connections */
1146         server_loop(cmd_ctx);
1147         openocd_sleep_prelude();
1148
1149         /* shut server down */
1150         server_quit();
1151
1152         /* free commandline interface */
1153         command_done(cmd_ctx);
1154         umount("/config");
1155
1156         exit(0);
1157         for (;;)
1158                 ;
1159 }
1160
1161 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1162 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1163 {
1164         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1165         return 0;
1166 }
1167
1168 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1169
1170 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1171 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1172
1173 #include <pkgconf/system.h>
1174 #include <pkgconf/hal.h>
1175 #include <pkgconf/kernel.h>
1176 #include <pkgconf/io_fileio.h>
1177 #include <pkgconf/fs_rom.h>
1178
1179 #include <cyg/kernel/ktypes.h>         // base kernel types
1180 #include <cyg/infra/cyg_trac.h>        // tracing macros
1181 #include <cyg/infra/cyg_ass.h>         // assertion macros
1182 #include <cyg/fileio/fileio.h>
1183 #include <cyg/kernel/kapi.h>
1184 #include <cyg/infra/diag.h>
1185
1186 //==========================================================================
1187 // Eventually we want to eXecute In Place from the ROM in a protected
1188 // environment, so we'll need executables to be aligned to a boundary
1189 // suitable for MMU protection. A suitable boundary would be the 4k
1190 // boundary in all the CPU architectures I am currently aware of.
1191
1192 // Forward definitions
1193
1194 // Filesystem operations
1195 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1196 static int tftpfs_umount(cyg_mtab_entry *mte);
1197 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1198                 int mode, cyg_file *fte);
1199 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1200 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1201
1202 // File operations
1203 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1204 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1205 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1206
1207 //==========================================================================
1208 // Filesystem table entries
1209
1210 // -------------------------------------------------------------------------
1211 // Fstab entry.
1212 // This defines the entry in the filesystem table.
1213 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1214 // we should never block in any filesystem operations.
1215 #if 1
1216 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1217                 CYG_SYNCMODE_NONE,
1218                 tftpfs_mount,
1219                 tftpfs_umount,
1220                 tftpfs_open,
1221                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1222                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1223                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1224                 (cyg_fsop_rename *)cyg_fileio_erofs,
1225                 (cyg_fsop_link *)cyg_fileio_erofs,
1226                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1227                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1228                 (cyg_fsop_stat *)cyg_fileio_erofs,
1229                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1230                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1231 #endif
1232
1233 // -------------------------------------------------------------------------
1234 // mtab entry.
1235 // This defines a single ROMFS loaded into ROM at the configured address
1236 //
1237 // MTAB_ENTRY(rom_mte,  // structure name
1238 //              "/rom",         // mount point
1239 //              "romfs",        // FIlesystem type
1240 //              "",             // hardware device
1241 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1242 //);
1243
1244
1245 // -------------------------------------------------------------------------
1246 // File operations.
1247 // This set of file operations are used for normal open files.
1248
1249 static cyg_fileops tftpfs_fileops =
1250 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1251                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1252                 tftpfs_fo_fsync, tftpfs_fo_close,
1253                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1254                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1255                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1256
1257 // -------------------------------------------------------------------------
1258 // tftpfs_mount()
1259 // Process a mount request. This mainly finds root for the
1260 // filesystem.
1261
1262 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1263 {
1264         return ENOERR;
1265 }
1266
1267 static int tftpfs_umount(cyg_mtab_entry *mte)
1268 {
1269         return ENOERR;
1270 }
1271
1272 struct Tftp
1273 {
1274         int write;
1275         int readFile;
1276         cyg_uint8 *mem;
1277         int actual;
1278         char *server;
1279         char *file;
1280 };
1281
1282 static void freeTftp(struct Tftp *t)
1283 {
1284         if (t == NULL)
1285                 return;
1286         if (t->mem)
1287                 free(t->mem);
1288         if (t->server)
1289                 free(t->server);
1290         if (t->file)
1291                 free(t->file);
1292         free(t);
1293 }
1294
1295 static const int tftpMaxSize = 8192 * 1024;
1296 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1297                 int mode, cyg_file *file)
1298 {
1299         struct Tftp *tftp;
1300         tftp = malloc(sizeof(struct Tftp));
1301         if (tftp == NULL)
1302                 return EMFILE;
1303         memset(tftp, 0, sizeof(struct Tftp));
1304
1305         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1306         file->f_type = CYG_FILE_TYPE_FILE;
1307         file->f_ops = &tftpfs_fileops;
1308         file->f_offset = 0;
1309         file->f_data = 0;
1310         file->f_xops = 0;
1311
1312         tftp->mem = malloc(tftpMaxSize);
1313         if (tftp->mem == NULL)
1314         {
1315                 freeTftp(tftp);
1316                 return EMFILE;
1317         }
1318
1319         char *server = strchr(name, '/');
1320         if (server == NULL)
1321         {
1322                 freeTftp(tftp);
1323                 return EMFILE;
1324         }
1325
1326         tftp->server = malloc(server - name + 1);
1327         if (tftp->server == NULL)
1328         {
1329                 freeTftp(tftp);
1330                 return EMFILE;
1331         }
1332         strncpy(tftp->server, name, server - name);
1333         tftp->server[server - name] = 0;
1334
1335         tftp->file = strdup(server + 1);
1336         if (tftp->file == NULL)
1337         {
1338                 freeTftp(tftp);
1339                 return EMFILE;
1340         }
1341
1342         file->f_data = (CYG_ADDRWORD) tftp;
1343
1344         return ENOERR;
1345 }
1346
1347 static int fetchTftp(struct Tftp *tftp)
1348 {
1349         if (!tftp->readFile)
1350         {
1351                 int err;
1352                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1353                                 tftpMaxSize, TFTP_OCTET, &err);
1354
1355                 if (tftp->actual < 0)
1356                 {
1357                         return EMFILE;
1358                 }
1359                 tftp->readFile = 1;
1360         }
1361         return ENOERR;
1362 }
1363
1364 // -------------------------------------------------------------------------
1365 // tftpfs_fo_write()
1366 // Read data from file.
1367
1368 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1369 {
1370         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1371
1372         if (fetchTftp(tftp) != ENOERR)
1373                 return EMFILE;
1374
1375         int i;
1376         off_t pos = fp->f_offset;
1377         int resid = 0;
1378         for (i = 0; i < uio->uio_iovcnt; i++)
1379         {
1380                 cyg_iovec *iov = &uio->uio_iov[i];
1381                 char *buf = (char *) iov->iov_base;
1382                 off_t len = iov->iov_len;
1383
1384                 if (len + pos > tftp->actual)
1385                 {
1386                         len = tftp->actual - pos;
1387                 }
1388                 resid += iov->iov_len - len;
1389
1390                 memcpy(buf, tftp->mem + pos, len);
1391                 pos += len;
1392
1393         }
1394         uio->uio_resid = resid;
1395         fp->f_offset = pos;
1396
1397         return ENOERR;
1398 }
1399
1400 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1401 {
1402         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1403
1404         int i;
1405         off_t pos = fp->f_offset;
1406         int resid = 0;
1407         for (i = 0; i < uio->uio_iovcnt; i++)
1408         {
1409                 cyg_iovec *iov = &uio->uio_iov[i];
1410                 char *buf = (char *) iov->iov_base;
1411                 off_t len = iov->iov_len;
1412
1413                 if (len + pos > tftpMaxSize)
1414                 {
1415                         len = tftpMaxSize - pos;
1416                 }
1417                 resid += iov->iov_len - len;
1418
1419                 memcpy(tftp->mem + pos, buf, len);
1420                 pos += len;
1421
1422         }
1423         uio->uio_resid = resid;
1424         fp->f_offset = pos;
1425
1426         tftp->write = 1;
1427
1428         return ENOERR;
1429 }
1430
1431 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1432 {
1433         int error = ENOERR;
1434         return error;
1435 }
1436
1437 // -------------------------------------------------------------------------
1438 // romfs_fo_close()
1439 // Close a file. We just clear out the data pointer.
1440
1441 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1442 {
1443         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1444         int error = ENOERR;
1445
1446         if (tftp->write)
1447         {
1448                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1449                                 TFTP_OCTET, &error);
1450         }
1451
1452         freeTftp(tftp);
1453         fp->f_data = 0;
1454         return error;
1455 }
1456
1457 // -------------------------------------------------------------------------
1458 // romfs_fo_lseek()
1459 // Seek to a new file position.
1460
1461 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1462 {
1463         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1464         off_t pos = *apos;
1465
1466         if (fetchTftp(tftp) != ENOERR)
1467                 return EMFILE;
1468
1469         switch (whence)
1470         {
1471         case SEEK_SET:
1472                 // Pos is already where we want to be.
1473                 break;
1474
1475         case SEEK_CUR:
1476                 // Add pos to current offset.
1477                 pos += fp->f_offset;
1478                 break;
1479
1480         case SEEK_END:
1481                 // Add pos to file size.
1482                 pos += tftp->actual;
1483                 break;
1484
1485         default:
1486                 return EINVAL;
1487         }
1488
1489         // Check that pos is still within current file size, or at the
1490         // very end.
1491         if (pos < 0 || pos > tftp->actual)
1492                 return EINVAL;
1493
1494         // All OK, set fp offset and return new position.
1495         *apos = fp->f_offset = pos;
1496
1497         return ENOERR;
1498 }
1499
1500 void usleep(int us)
1501 {
1502         if (us > 10000)
1503                 cyg_thread_delay(us / 10000 + 1);
1504         else
1505                 HAL_DELAY_US(us);
1506 }
1507
1508 // Chunked version.
1509 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1510 {
1511         cyg_httpd_start_chunked("text");
1512         if (logCount >= logSize)
1513         {
1514                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1515                                 - logCount % logSize);
1516         }
1517         cyg_httpd_write_chunked(logBuffer, writePtr);
1518         cyg_httpd_end_chunked();
1519         return -1;
1520 }
1521
1522 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1523
1524 // Filesystem operations
1525 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1526 static int logfs_umount(cyg_mtab_entry *mte);
1527 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1528                 int mode, cyg_file *fte);
1529 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1530
1531 // File operations
1532 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1533 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1534
1535 #include <cyg/io/devtab.h>
1536
1537 //==========================================================================
1538 // Filesystem table entries
1539
1540 // -------------------------------------------------------------------------
1541 // Fstab entry.
1542 // This defines the entry in the filesystem table.
1543 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1544 // we should never block in any filesystem operations.
1545 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1546                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1547                 logfs_mount,
1548                 logfs_umount,
1549                 logfs_open,
1550                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1551                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1552                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1553                 (cyg_fsop_rename *)cyg_fileio_erofs,
1554                 (cyg_fsop_link *)cyg_fileio_erofs,
1555                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1556                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1557                 (cyg_fsop_stat *)cyg_fileio_erofs,
1558                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1559                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1560
1561 // -------------------------------------------------------------------------
1562 // File operations.
1563 // This set of file operations are used for normal open files.
1564
1565 static cyg_fileops logfs_fileops =
1566 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1567                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1568                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1569                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1570                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1571                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1572
1573 // -------------------------------------------------------------------------
1574 // logfs_mount()
1575 // Process a mount request. This mainly finds root for the
1576 // filesystem.
1577
1578 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1579 {
1580         return ENOERR;
1581 }
1582
1583 static int logfs_umount(cyg_mtab_entry *mte)
1584 {
1585         return ENOERR;
1586 }
1587
1588 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1589                 int mode, cyg_file *file)
1590 {
1591         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1592         file->f_type = CYG_FILE_TYPE_FILE;
1593         file->f_ops = &logfs_fileops;
1594         file->f_offset = 0;
1595         file->f_data = 0;
1596         file->f_xops = 0;
1597         return ENOERR;
1598 }
1599
1600 // -------------------------------------------------------------------------
1601 // logfs_fo_write()
1602 // Write data to file.
1603
1604 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1605 {
1606         int i;
1607         for (i = 0; i < uio->uio_iovcnt; i++)
1608         {
1609                 cyg_iovec *iov = &uio->uio_iov[i];
1610                 char *buf = (char *) iov->iov_base;
1611                 off_t len = iov->iov_len;
1612
1613                 diag_write(buf, len);
1614         }
1615         uio->uio_resid = 0;
1616
1617         return ENOERR;
1618 }
1619 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1620 {
1621         return ENOERR;
1622 }
1623
1624 // -------------------------------------------------------------------------
1625 // romfs_fo_close()
1626 // Close a file. We just clear out the data pointer.
1627
1628 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1629 {
1630         return ENOERR;
1631 }
1632
1633 int loadFile(const char *fileName, void **data, int *len);
1634
1635 /* boolean parameter stored on config */
1636 int boolParam(char *var)
1637 {
1638         bool result = false;
1639         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1640         if (name == NULL)
1641                 return result;
1642
1643         void *data;
1644         int len;
1645         if (loadFile(name, &data, &len) == ERROR_OK)
1646         {
1647                 if (len > 1)
1648                         len = 1;
1649                 result = strncmp((char *) data, "1", len) == 0;
1650                 free(data);
1651         }
1652         free(name);
1653         return result;
1654 }
1655