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