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 "types.h"
  25 #include "jtag.h"
  26 #include "configuration.h"
  27 #include "xsvf.h"
  28 #include "svf.h"
  29 #include "nand.h"
  30 #include "pld.h"
  31
  32 #include "server.h"
  33 #include "telnet_server.h"
  34 #include "gdb_server.h"
  35 #include "openocd.h"
  36
  37 #include <time_support.h>
  38 #include <sys/time.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <unistd.h>
  43 #include <errno.h>
  44
  45 #include <cyg/io/flash.h>
  46 #include <pkgconf/fs_jffs2.h>   // Address of JFFS2
  47 #include <network.h>
  48
  49 #include <fcntl.h>
  50 #include <sys/stat.h>
  51 #include <cyg/fileio/fileio.h>
  52 #include <dirent.h>
  53 #include <cyg/athttpd/http.h>
  54 #include <cyg/athttpd/socket.h>
  55 #include <cyg/athttpd/handler.h>
  56 #include <cyg/athttpd/cgi.h>
  57 #include <cyg/athttpd/forms.h>
  58 #include <cyg/discover/discover.h>
  59 #include <cyg/hal/hal_diag.h>
  60 #include <cyg/kernel/kapi.h>
  61 #include <cyg/io/serialio.h>
  62 #include <cyg/io/io.h>
  63 #include <netinet/tcp.h>
  64 #include "rom.h"
  65 #include <sys/ioctl.h>
  66 #include <sys/socket.h>
  67 #include <netinet/in.h>
  68 #include <net/if.h>
  69 #include <arpa/inet.h>
  70 #include <sys/types.h>
  71 #include <sys/socket.h>
  72 #include <netdb.h>
  73 #include <netinet/in.h>
  74 #include <unistd.h>
  75 #include <arpa/inet.h>
  76 #include <stdio.h>
  77 #include <ifaddrs.h>
  78 #include <string.h>
  79
  80 #include <unistd.h>
  81 #include <stdio.h>
  82
  83
  84 #ifdef CYGPKG_HAL_NIOS2
  85 #define ZY1000_SER_DEV "/dev/uart_0"
  86 #else
  87 #define ZY1000_SER_DEV "/dev/ser0"
  88
  89 #endif
  90
  91
  92 #define MAX_IFS 64
  93 #if defined(CYGPKG_NET_FREEBSD_STACK)
  94 #include <tftp_support.h>
  95 /* posix compatibility broken*/
  96 struct tftpd_fileops fileops =
  97 {
  98         (int (*)(const char *, int))open,
  99         close,
 100         (int (*)(int, const void *, int))write,
 101         (int (*)(int, void *, int))read
 102 };
 103
 104 #endif
 105
 106
 107 void diag_write(char *buf, int len)
 108 {
 109         int j;
 110         for (j = 0; j < len; j++)
 111         {
 112                 diag_printf("%c", buf[j]);
 113         }
 114 }
 115
 116 static bool serialLog = true;
 117 static bool writeLog = true;
 118
 119 char hwaddr[512];
 120
 121
 122 extern struct flash_driver *flash_drivers[];
 123 extern struct target_type *target_types[];
 124
 125 #ifdef CYGPKG_PROFILE_GPROF
 126 #include <cyg/profile/profile.h>
 127
 128 extern char _stext, _etext; // Defined by the linker
 129
 130 static char *start_of_code=&_stext;
 131 static char *end_of_code=&_etext;
 132
 133 void start_profile(void)
 134 {
 135         // This starts up the system-wide profiling, gathering
 136         // profile information on all of the code, with a 16 byte
 137         // "bucket" size, at a rate of 100us/profile hit.
 138         // Note: a bucket size of 16 will give pretty good function
 139         //       resolution.  Much smaller and the buffer becomes
 140         //       much too large for very little gain.
 141         // Note: a timer period of 100us is also a reasonable
 142         //       compromise.  Any smaller and the overhead of
 143         //       handling the timter (profile) interrupt could
 144         //       swamp the system.  A fast processor might get
 145         //       by with a smaller value, but a slow one could
 146         //       even be swamped by this value.  If the value is
 147         //       too large, the usefulness of the profile is reduced.
 148
 149         // no more interrupts than 1/10ms.
 150         //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
 151         //      profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
 152         profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
 153 }
 154 #endif
 155
 156 static FILE *log;
 157
 158 static char reboot_stack[2048];
 159
 160 static void zylinjtag_reboot(cyg_addrword_t data)
 161 {
 162         serialLog = true;
 163         diag_printf("Rebooting in 500 ticks..\n");
 164         cyg_thread_delay(500);
 165         diag_printf("Unmounting /config..\n");
 166         umount("/config");
 167         diag_printf("Rebooting..\n");
 168         HAL_PLATFORM_RESET();
 169 }
 170 static cyg_thread zylinjtag_thread_object;
 171 static cyg_handle_t zylinjtag_thread_handle;
 172
 173 void reboot(void)
 174 {
 175         cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
 176                         (void *) reboot_stack, sizeof(reboot_stack),
 177                         &zylinjtag_thread_handle, &zylinjtag_thread_object);
 178         cyg_thread_resume(zylinjtag_thread_handle);
 179 }
 180
 181 static char zylinjtag_reboot_port_stack[2048];
 182 static cyg_thread zylinjtag_reboot_port_thread_object;
 183 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
 184
 185 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
 186 {
 187         int so_reuseaddr_option = 1;
 188
 189         int fd;
 190         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
 191         {
 192                 LOG_ERROR("error creating socket: %s", strerror(errno));
 193                 exit(-1);
 194         }
 195
 196         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
 197                         sizeof(int));
 198
 199         struct sockaddr_in sin;
 200         unsigned int address_size;
 201         address_size = sizeof(sin);
 202         memset(&sin, 0, sizeof(sin));
 203         sin.sin_family = AF_INET;
 204         sin.sin_addr.s_addr = INADDR_ANY;
 205         sin.sin_port = htons(1234);
 206
 207         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
 208         {
 209                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
 210                 exit(-1);
 211         }
 212
 213         if (listen(fd, 1) == -1)
 214         {
 215                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
 216                 exit(-1);
 217         }
 218         //      socket_nonblock(fd);
 219
 220
 221         accept(fd, (struct sockaddr *) &sin, &address_size);
 222
 223         diag_printf("Got reboot signal on port 1234");
 224
 225         reboot();
 226
 227 }
 228
 229 void reboot_port(void)
 230 {
 231         cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
 232                         (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
 233                         &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
 234         cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
 235 }
 236
 237 int configuration_output_handler(struct command_context *context,
 238                 const char* line)
 239 {
 240         diag_printf("%s", line);
 241
 242         return ERROR_OK;
 243 }
 244
 245 int zy1000_configuration_output_handler_log(struct command_context *context,
 246                 const char* line)
 247 {
 248         LOG_USER_N("%s", line);
 249
 250         return ERROR_OK;
 251 }
 252
 253 #ifdef CYGPKG_PROFILE_GPROF
 254
 255 int eCosBoard_handle_eCosBoard_profile_command(struct command_context *cmd_ctx, char *cmd, char **args, int argc)
 256 {
 257         command_print(cmd_ctx, "Profiling started");
 258         start_profile();
 259         return ERROR_OK;
 260 }
 261
 262 #endif
 263
 264 externC void phi_init_all_network_interfaces(void);
 265
 266 struct command_context *cmd_ctx;
 267
 268 static bool webRunning = false;
 269
 270 void keep_webserver(void)
 271 {
 272         // Target initialisation is only attempted at startup, so we sleep forever and
 273         // let the http server bail us out(i.e. get config files set up).
 274         diag_printf("OpenOCD has invoked exit().\n"
 275                 "Use web server to correct any configuration settings and reboot.\n");
 276         if (!webRunning)
 277                 reboot();
 278
 279         // exit() will terminate the current thread and we we'll then sleep eternally or
 280         // we'll have a reboot scheduled.
 281 }
 282
 283 extern void printDccChar(char c);
 284
 285 static char logBuffer[128 * 1024];
 286 static const int logSize = sizeof(logBuffer);
 287 int writePtr = 0;
 288 int logCount = 0;
 289
 290 void _zylinjtag_diag_write_char(char c, void **param)
 291 {
 292         if (writeLog)
 293         {
 294                 logBuffer[writePtr] = c;
 295                 writePtr = (writePtr + 1) % logSize;
 296                 logCount++;
 297         }
 298         if (serialLog)
 299         {
 300                 if (c == '\n')
 301                 {
 302                         HAL_DIAG_WRITE_CHAR('\r');
 303                 }
 304                 HAL_DIAG_WRITE_CHAR(c);
 305         }
 306
 307 #ifdef CYGPKG_HAL_ZYLIN_PHI
 308         printDccChar(c);
 309 #endif
 310 }
 311
 312 void copyfile(char *name2, char *name1);
 313
 314 void copydir(char *name, char *destdir);
 315
 316 #if 0
 317 MTAB_ENTRY(romfs_mte1,
 318                 "/rom",
 319                 "romfs",
 320                 "",
 321                 (CYG_ADDRWORD) &filedata[0]);
 322 #endif
 323
 324 void openocd_sleep_prelude(void)
 325 {
 326         cyg_mutex_unlock(&httpstate.jim_lock);
 327 }
 328
 329 void openocd_sleep_postlude(void)
 330 {
 331         cyg_mutex_lock(&httpstate.jim_lock);
 332 }
 333
 334 void format(void)
 335 {
 336 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
 337         diag_printf("Formatting JFFS2...\n");
 338
 339         cyg_io_handle_t handle;
 340
 341         Cyg_ErrNo err;
 342         err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
 343         if (err != ENOERR)
 344         {
 345                 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
 346                 reboot();
 347         }
 348
 349         cyg_uint32 len;
 350         cyg_io_flash_getconfig_devsize_t ds;
 351         len = sizeof(ds);
 352         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
 353         if (err != ENOERR)
 354         {
 355                 diag_printf("Flash error cyg_io_get_config %d\n", err);
 356                 reboot();
 357         }
 358
 359         cyg_io_flash_getconfig_erase_t e;
 360         len = sizeof(e);
 361
 362         e.offset = 0;
 363         e.len = ds.dev_size;
 364
 365         diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
 366         err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
 367         if (err != ENOERR)
 368         {
 369                 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
 370                 reboot();
 371         }
 372
 373         diag_printf("Flash formatted successfully\n");
 374 #endif
 375
 376         reboot();
 377 }
 378
 379 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
 380                 Jim_Obj * const *argv)
 381 {
 382         if (argc != 1)
 383         {
 384                 return JIM_ERR;
 385         }
 386
 387         format();
 388         for (;;)
 389                 ;
 390 }
 391
 392 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
 393                 Jim_Obj * const *argv)
 394 {
 395         cyg_handle_t thread = 0;
 396         cyg_uint16 id = 0;
 397         Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
 398
 399         /* Loop over the threads, and generate a table row for
 400          * each.
 401          */
 402         while (cyg_thread_get_next(&thread, &id))
 403         {
 404                 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
 405
 406                 cyg_thread_info info;
 407                 char *state_string;
 408
 409                 cyg_thread_get_info(thread, id, &info);
 410
 411                 if (info.name == NULL)
 412                         info.name = "<no name>";
 413
 414                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 415                                 info.name, strlen(info.name)));
 416
 417                 /* Translate the state into a string.
 418                  */
 419                 if (info.state == 0)
 420                         state_string = "RUN";
 421                 else if (info.state & 0x04)
 422                         state_string = "SUSP";
 423                 else
 424                         switch (info.state & 0x1b)
 425                         {
 426                         case 0x01:
 427                                 state_string = "SLEEP";
 428                                 break;
 429                         case 0x02:
 430                                 state_string = "CNTSLEEP";
 431                                 break;
 432                         case 0x08:
 433                                 state_string = "CREATE";
 434                                 break;
 435                         case 0x10:
 436                                 state_string = "EXIT";
 437                                 break;
 438                         default:
 439                                 state_string = "????";
 440                                 break;
 441                         }
 442
 443                 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
 444                                 state_string, strlen(state_string)));
 445
 446                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
 447                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 448                                 info.set_pri));
 449                 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
 450                                 info.cur_pri));
 451
 452                 Jim_ListAppendElement(interp, threads, threadObj);
 453         }
 454         Jim_SetResult(interp, threads);
 455
 456         return JIM_OK;
 457 }
 458
 459 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
 460                 Jim_Obj * const *argv)
 461 {
 462         Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
 463
 464         if (logCount >= logSize)
 465         {
 466                 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
 467                                 % logSize, logSize - logCount % logSize);
 468         }
 469         Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
 470
 471         Jim_SetResult(interp, tclOutput);
 472         return JIM_OK;
 473 }
 474
 475 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
 476                 Jim_Obj * const *argv)
 477 {
 478         reboot();
 479         return JIM_OK;
 480 }
 481
 482 static void zylinjtag_startNetwork(void)
 483 {
 484         // Bring TCP/IP up immediately before we're ready to accept commands.
 485         //
 486         // That is as soon as a PING responds, we're accepting telnet sessions.
 487 #if defined(CYGPKG_NET_FREEBSD_STACK)
 488         phi_init_all_network_interfaces();
 489 #else
 490         lwip_init();
 491 #endif
 492         if (!eth0_up)
 493         {
 494                 diag_printf("Network not up and running\n");
 495                 exit(-1);
 496         }
 497
 498         /* very first thing we want is a reboot capability */
 499         reboot_port();
 500
 501 #if defined(CYGPKG_NET_FREEBSD_STACK)
 502         /*start TFTP*/
 503         tftpd_start(69, &fileops);
 504 #endif
 505
 506         cyg_httpd_init_tcl_interpreter();
 507
 508         interp = httpstate.jim_interp;
 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 struct command_context *setup_command_handler(void);
 937
 938 static const char *zylin_config_dir="/config/settings";
 939
 940 static int add_default_dirs(void)
 941 {
 942         add_script_search_dir(zylin_config_dir);
 943         add_script_search_dir("/rom/lib/openocd");
 944         add_script_search_dir("/rom");
 945         return ERROR_OK;
 946 }
 947
 948 int ioutil_init(struct command_context *cmd_ctx);
 949
 950 int main(int argc, char *argv[])
 951 {
 952         /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
 953          * need to allocate towards the end of the heap.  */
 954
 955 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
 956         setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
 957         setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
 958         setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
 959 #endif
 960
 961         int err;
 962
 963         atexit(keep_webserver);
 964
 965         diag_init_putc(_zylinjtag_diag_write_char);
 966         // We want this in the log.
 967         diag_printf("Zylin ZY1000.\n");
 968
 969         err = mount("", "/ram", "ramfs");
 970         if (err < 0)
 971         {
 972                 diag_printf("unable to mount ramfs\n");
 973         }
 974         chdir("/ram");
 975
 976         char address[16];
 977         sprintf(address, "%p", &filedata[0]);
 978         err = mount(address, "/rom", "romfs");
 979         if (err < 0)
 980         {
 981                 diag_printf("unable to mount /rom\n");
 982         }
 983
 984         err = mount("", "/log", "logfs");
 985         if (err < 0)
 986         {
 987                 diag_printf("unable to mount logfs\n");
 988         }
 989
 990         err = mount("", "/tftp", "tftpfs");
 991         if (err < 0)
 992         {
 993                 diag_printf("unable to mount logfs\n");
 994         }
 995
 996         log = fopen("/log/log", "w");
 997         if (log == NULL)
 998         {
 999                 diag_printf("Could not open log file /ram/log\n");
1000                 exit(-1);
1001         }
1002
1003
1004         copydir("/rom", "/ram/cgi");
1005
1006         err = mount("/dev/flash1", "/config", "jffs2");
1007         if (err < 0)
1008         {
1009                 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1010                 err = mount("", "/config", "ramfs");
1011                 if (err < 0)
1012                 {
1013                         diag_printf("unable to mount /config as ramdisk.\n");
1014                         reboot();
1015                 }
1016         }
1017         else
1018         {
1019                 /* are we using a ram disk instead of a flash disk? This is used
1020                  * for ZY1000 live demo...
1021                  *
1022                  * copy over flash disk to ram block device
1023                  */
1024                 if (boolParam("ramdisk"))
1025                 {
1026                         diag_printf("Unmounting /config from flash and using ram instead\n");
1027                         err = umount("/config");
1028                         if (err < 0)
1029                         {
1030                                 diag_printf("unable to unmount jffs\n");
1031                                 reboot();
1032                         }
1033
1034                         err = mount("/dev/flash1", "/config2", "jffs2");
1035                         if (err < 0)
1036                         {
1037                                 diag_printf("unable to mount jffs\n");
1038                                 reboot();
1039                         }
1040
1041                         err = mount("", "/config", "ramfs");
1042                         if (err < 0)
1043                         {
1044                                 diag_printf("unable to mount ram block device\n");
1045                                 reboot();
1046                         }
1047
1048                         //              copydir("/config2", "/config");
1049                         copyfile("/config2/ip", "/config/ip");
1050                         copydir("/config2/settings", "/config/settings");
1051
1052                         umount("/config2");
1053                 }
1054         }
1055
1056         mkdir(zylin_config_dir, 0777);
1057         char *dirname = alloc_printf("%s/target", zylin_config_dir);
1058         mkdir(dirname, 0777);
1059         free(dirname);
1060         dirname = alloc_printf("%s/board", zylin_config_dir);
1061         mkdir(dirname, 0777);
1062         free(dirname);
1063         dirname = alloc_printf("%s/event", zylin_config_dir);
1064         mkdir(dirname, 0777);
1065         free(dirname);
1066
1067         logAllToSerial = boolParam("logserial");
1068
1069         // We need the network & web server in case there is something wrong with
1070         // the config files that invoke exit()
1071         zylinjtag_startNetwork();
1072
1073         /* we're going to access the jim interpreter from here on... */
1074         openocd_sleep_postlude();
1075         startUart();
1076
1077         add_default_dirs();
1078
1079         /* initialize commandline interface */
1080         struct command_context * cmd_ctx;
1081         cmd_ctx = setup_command_handler();
1082         command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1083         command_context_mode(cmd_ctx, COMMAND_CONFIG);
1084
1085 #if BUILD_IOUTIL
1086         if (ioutil_init(cmd_ctx) != ERROR_OK)
1087         {
1088                 return EXIT_FAILURE;
1089         }
1090 #endif
1091
1092
1093 #ifdef CYGPKG_PROFILE_GPROF
1094         COMMAND_REGISTER(cmd_ctx, NULL, "ecosboard_profile", eCosBoard_handle_eCosBoard_profile_command,
1095                         COMMAND_ANY, NULL);
1096 #endif
1097
1098         Jim_CreateCommand(interp, "uart", zylinjtag_Jim_Command_uart, NULL, NULL);
1099
1100
1101         int errVal;
1102         errVal = log_init(cmd_ctx);
1103         if (errVal != ERROR_OK)
1104         {
1105                 diag_printf("log_init() failed %d\n", errVal);
1106                 exit(-1);
1107         }
1108
1109         set_log_output(cmd_ctx, log);
1110
1111         LOG_DEBUG("log init complete");
1112
1113         //      diag_printf("Executing config files\n");
1114
1115         if (logAllToSerial)
1116         {
1117                 diag_printf(
1118                                  "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1119                 command_run_line(cmd_ctx, "debug_level 3");
1120         }
1121
1122         command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1123
1124         /* we MUST always run the init command as it will launch telnet sessions */
1125         command_run_line(cmd_ctx, "init");
1126
1127         // FIX!!!  Yuk!
1128         // diag_printf() is really invoked from many more places than we trust it
1129         // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1130         //
1131         // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1132         // fingers that it doesn't cause any crashes.
1133         diag_printf("Init complete, GDB & telnet servers launched.\n");
1134         command_set_output_handler(cmd_ctx,
1135                         zy1000_configuration_output_handler_log, NULL);
1136         if (!logAllToSerial)
1137         {
1138                 serialLog = false;
1139         }
1140
1141         /* handle network connections */
1142         server_loop(cmd_ctx);
1143         openocd_sleep_prelude();
1144
1145         /* shut server down */
1146         server_quit();
1147
1148         /* free commandline interface */
1149         command_done(cmd_ctx);
1150         umount("/config");
1151
1152         exit(0);
1153         for (;;)
1154                 ;
1155 }
1156
1157 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1158 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1159 {
1160         cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1161         return 0;
1162 }
1163
1164 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1165
1166 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1167 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1168
1169 #include <pkgconf/system.h>
1170 #include <pkgconf/hal.h>
1171 #include <pkgconf/kernel.h>
1172 #include <pkgconf/io_fileio.h>
1173 #include <pkgconf/fs_rom.h>
1174
1175 #include <cyg/kernel/ktypes.h>         // base kernel types
1176 #include <cyg/infra/cyg_trac.h>        // tracing macros
1177 #include <cyg/infra/cyg_ass.h>         // assertion macros
1178 #include <cyg/fileio/fileio.h>
1179 #include <cyg/kernel/kapi.h>
1180 #include <cyg/infra/diag.h>
1181
1182 //==========================================================================
1183 // Eventually we want to eXecute In Place from the ROM in a protected
1184 // environment, so we'll need executables to be aligned to a boundary
1185 // suitable for MMU protection. A suitable boundary would be the 4k
1186 // boundary in all the CPU architectures I am currently aware of.
1187
1188 // Forward definitions
1189
1190 // Filesystem operations
1191 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1192 static int tftpfs_umount(cyg_mtab_entry *mte);
1193 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1194                 int mode, cyg_file *fte);
1195 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1196 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1197
1198 // File operations
1199 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1200 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1201 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1202
1203 //==========================================================================
1204 // Filesystem table entries
1205
1206 // -------------------------------------------------------------------------
1207 // Fstab entry.
1208 // This defines the entry in the filesystem table.
1209 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1210 // we should never block in any filesystem operations.
1211 #if 1
1212 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1213                 CYG_SYNCMODE_NONE,
1214                 tftpfs_mount,
1215                 tftpfs_umount,
1216                 tftpfs_open,
1217                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1218                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1219                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1220                 (cyg_fsop_rename *)cyg_fileio_erofs,
1221                 (cyg_fsop_link *)cyg_fileio_erofs,
1222                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1223                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1224                 (cyg_fsop_stat *)cyg_fileio_erofs,
1225                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1226                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1227 #endif
1228
1229 // -------------------------------------------------------------------------
1230 // mtab entry.
1231 // This defines a single ROMFS loaded into ROM at the configured address
1232 //
1233 // MTAB_ENTRY(rom_mte,  // structure name
1234 //              "/rom",         // mount point
1235 //              "romfs",        // FIlesystem type
1236 //              "",             // hardware device
1237 //  (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS   // Address in ROM
1238 //);
1239
1240
1241 // -------------------------------------------------------------------------
1242 // File operations.
1243 // This set of file operations are used for normal open files.
1244
1245 static cyg_fileops tftpfs_fileops =
1246 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1247                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1248                 tftpfs_fo_fsync, tftpfs_fo_close,
1249                 (cyg_fileop_fstat *) cyg_fileio_erofs,
1250                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1251                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1252
1253 // -------------------------------------------------------------------------
1254 // tftpfs_mount()
1255 // Process a mount request. This mainly finds root for the
1256 // filesystem.
1257
1258 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1259 {
1260         return ENOERR;
1261 }
1262
1263 static int tftpfs_umount(cyg_mtab_entry *mte)
1264 {
1265         return ENOERR;
1266 }
1267
1268 struct Tftp
1269 {
1270         int write;
1271         int readFile;
1272         cyg_uint8 *mem;
1273         int actual;
1274         char *server;
1275         char *file;
1276 };
1277
1278 static void freeTftp(struct Tftp *t)
1279 {
1280         if (t == NULL)
1281                 return;
1282         if (t->mem)
1283                 free(t->mem);
1284         if (t->server)
1285                 free(t->server);
1286         if (t->file)
1287                 free(t->file);
1288         free(t);
1289 }
1290
1291 static const int tftpMaxSize = 8192 * 1024;
1292 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1293                 int mode, cyg_file *file)
1294 {
1295         struct Tftp *tftp;
1296         tftp = malloc(sizeof(struct Tftp));
1297         if (tftp == NULL)
1298                 return EMFILE;
1299         memset(tftp, 0, sizeof(struct Tftp));
1300
1301         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1302         file->f_type = CYG_FILE_TYPE_FILE;
1303         file->f_ops = &tftpfs_fileops;
1304         file->f_offset = 0;
1305         file->f_data = 0;
1306         file->f_xops = 0;
1307
1308         tftp->mem = malloc(tftpMaxSize);
1309         if (tftp->mem == NULL)
1310         {
1311                 freeTftp(tftp);
1312                 return EMFILE;
1313         }
1314
1315         char *server = strchr(name, '/');
1316         if (server == NULL)
1317         {
1318                 freeTftp(tftp);
1319                 return EMFILE;
1320         }
1321
1322         tftp->server = malloc(server - name + 1);
1323         if (tftp->server == NULL)
1324         {
1325                 freeTftp(tftp);
1326                 return EMFILE;
1327         }
1328         strncpy(tftp->server, name, server - name);
1329         tftp->server[server - name] = 0;
1330
1331         tftp->file = strdup(server + 1);
1332         if (tftp->file == NULL)
1333         {
1334                 freeTftp(tftp);
1335                 return EMFILE;
1336         }
1337
1338         file->f_data = (CYG_ADDRWORD) tftp;
1339
1340         return ENOERR;
1341 }
1342
1343 static int fetchTftp(struct Tftp *tftp)
1344 {
1345         if (!tftp->readFile)
1346         {
1347                 int err;
1348                 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1349                                 tftpMaxSize, TFTP_OCTET, &err);
1350
1351                 if (tftp->actual < 0)
1352                 {
1353                         return EMFILE;
1354                 }
1355                 tftp->readFile = 1;
1356         }
1357         return ENOERR;
1358 }
1359
1360 // -------------------------------------------------------------------------
1361 // tftpfs_fo_write()
1362 // Read data from file.
1363
1364 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1365 {
1366         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1367
1368         if (fetchTftp(tftp) != ENOERR)
1369                 return EMFILE;
1370
1371         int i;
1372         off_t pos = fp->f_offset;
1373         int resid = 0;
1374         for (i = 0; i < uio->uio_iovcnt; i++)
1375         {
1376                 cyg_iovec *iov = &uio->uio_iov[i];
1377                 char *buf = (char *) iov->iov_base;
1378                 off_t len = iov->iov_len;
1379
1380                 if (len + pos > tftp->actual)
1381                 {
1382                         len = tftp->actual - pos;
1383                 }
1384                 resid += iov->iov_len - len;
1385
1386                 memcpy(buf, tftp->mem + pos, len);
1387                 pos += len;
1388
1389         }
1390         uio->uio_resid = resid;
1391         fp->f_offset = pos;
1392
1393         return ENOERR;
1394 }
1395
1396 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1397 {
1398         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1399
1400         int i;
1401         off_t pos = fp->f_offset;
1402         int resid = 0;
1403         for (i = 0; i < uio->uio_iovcnt; i++)
1404         {
1405                 cyg_iovec *iov = &uio->uio_iov[i];
1406                 char *buf = (char *) iov->iov_base;
1407                 off_t len = iov->iov_len;
1408
1409                 if (len + pos > tftpMaxSize)
1410                 {
1411                         len = tftpMaxSize - pos;
1412                 }
1413                 resid += iov->iov_len - len;
1414
1415                 memcpy(tftp->mem + pos, buf, len);
1416                 pos += len;
1417
1418         }
1419         uio->uio_resid = resid;
1420         fp->f_offset = pos;
1421
1422         tftp->write = 1;
1423
1424         return ENOERR;
1425 }
1426
1427 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1428 {
1429         int error = ENOERR;
1430         return error;
1431 }
1432
1433 // -------------------------------------------------------------------------
1434 // romfs_fo_close()
1435 // Close a file. We just clear out the data pointer.
1436
1437 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1438 {
1439         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1440         int error = ENOERR;
1441
1442         if (tftp->write)
1443         {
1444                 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1445                                 TFTP_OCTET, &error);
1446         }
1447
1448         freeTftp(tftp);
1449         fp->f_data = 0;
1450         return error;
1451 }
1452
1453 // -------------------------------------------------------------------------
1454 // romfs_fo_lseek()
1455 // Seek to a new file position.
1456
1457 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1458 {
1459         struct Tftp *tftp = (struct Tftp *) fp->f_data;
1460         off_t pos = *apos;
1461
1462         if (fetchTftp(tftp) != ENOERR)
1463                 return EMFILE;
1464
1465         switch (whence)
1466         {
1467         case SEEK_SET:
1468                 // Pos is already where we want to be.
1469                 break;
1470
1471         case SEEK_CUR:
1472                 // Add pos to current offset.
1473                 pos += fp->f_offset;
1474                 break;
1475
1476         case SEEK_END:
1477                 // Add pos to file size.
1478                 pos += tftp->actual;
1479                 break;
1480
1481         default:
1482                 return EINVAL;
1483         }
1484
1485         // Check that pos is still within current file size, or at the
1486         // very end.
1487         if (pos < 0 || pos > tftp->actual)
1488                 return EINVAL;
1489
1490         // All OK, set fp offset and return new position.
1491         *apos = fp->f_offset = pos;
1492
1493         return ENOERR;
1494 }
1495
1496 void usleep(int us)
1497 {
1498         if (us > 10000)
1499                 cyg_thread_delay(us / 10000 + 1);
1500         else
1501                 HAL_DELAY_US(us);
1502 }
1503
1504 // Chunked version.
1505 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1506 {
1507         cyg_httpd_start_chunked("text");
1508         if (logCount >= logSize)
1509         {
1510                 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1511                                 - logCount % logSize);
1512         }
1513         cyg_httpd_write_chunked(logBuffer, writePtr);
1514         cyg_httpd_end_chunked();
1515         return -1;
1516 }
1517
1518 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1519
1520 // Filesystem operations
1521 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1522 static int logfs_umount(cyg_mtab_entry *mte);
1523 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1524                 int mode, cyg_file *fte);
1525 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1526
1527 // File operations
1528 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1529 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1530
1531 #include <cyg/io/devtab.h>
1532
1533 //==========================================================================
1534 // Filesystem table entries
1535
1536 // -------------------------------------------------------------------------
1537 // Fstab entry.
1538 // This defines the entry in the filesystem table.
1539 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1540 // we should never block in any filesystem operations.
1541 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1542                 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1543                 logfs_mount,
1544                 logfs_umount,
1545                 logfs_open,
1546                 (cyg_fsop_unlink *)cyg_fileio_erofs,
1547                 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1548                 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1549                 (cyg_fsop_rename *)cyg_fileio_erofs,
1550                 (cyg_fsop_link *)cyg_fileio_erofs,
1551                 (cyg_fsop_opendir *)cyg_fileio_erofs,
1552                 (cyg_fsop_chdir *)cyg_fileio_erofs,
1553                 (cyg_fsop_stat *)cyg_fileio_erofs,
1554                 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1555                 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1556
1557 // -------------------------------------------------------------------------
1558 // File operations.
1559 // This set of file operations are used for normal open files.
1560
1561 static cyg_fileops logfs_fileops =
1562 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1563                 (cyg_fileop_lseek *) cyg_fileio_erofs,
1564                 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1565                 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1566                 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1567                 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1568
1569 // -------------------------------------------------------------------------
1570 // logfs_mount()
1571 // Process a mount request. This mainly finds root for the
1572 // filesystem.
1573
1574 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1575 {
1576         return ENOERR;
1577 }
1578
1579 static int logfs_umount(cyg_mtab_entry *mte)
1580 {
1581         return ENOERR;
1582 }
1583
1584 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1585                 int mode, cyg_file *file)
1586 {
1587         file->f_flag |= mode & CYG_FILE_MODE_MASK;
1588         file->f_type = CYG_FILE_TYPE_FILE;
1589         file->f_ops = &logfs_fileops;
1590         file->f_offset = 0;
1591         file->f_data = 0;
1592         file->f_xops = 0;
1593         return ENOERR;
1594 }
1595
1596 // -------------------------------------------------------------------------
1597 // logfs_fo_write()
1598 // Write data to file.
1599
1600 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1601 {
1602         int i;
1603         for (i = 0; i < uio->uio_iovcnt; i++)
1604         {
1605                 cyg_iovec *iov = &uio->uio_iov[i];
1606                 char *buf = (char *) iov->iov_base;
1607                 off_t len = iov->iov_len;
1608
1609                 diag_write(buf, len);
1610         }
1611         uio->uio_resid = 0;
1612
1613         return ENOERR;
1614 }
1615 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1616 {
1617         return ENOERR;
1618 }
1619
1620 // -------------------------------------------------------------------------
1621 // romfs_fo_close()
1622 // Close a file. We just clear out the data pointer.
1623
1624 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1625 {
1626         return ENOERR;
1627 }
1628
1629 int loadFile(const char *fileName, void **data, int *len);
1630
1631 /* boolean parameter stored on config */
1632 int boolParam(char *var)
1633 {
1634         bool result = false;
1635         char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1636         if (name == NULL)
1637                 return result;
1638
1639         void *data;
1640         int len;
1641         if (loadFile(name, &data, &len) == ERROR_OK)
1642         {
1643                 if (len > 1)
1644                         len = 1;
1645                 result = strncmp((char *) data, "1", len) == 0;
1646                 free(data);
1647         }
1648         free(name);
1649         return result;
1650 }
1651