bitq: remove dead code
[openocd.git] / src / ecosboard.c
1 /***************************************************************************
2 * Copyright (C) 2007-2010 by √ėyvind 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/util.h>
28 #include <helper/configuration.h>
29
30 #include <server/server.h>
31 #include <server/telnet_server.h>
32 #include <server/gdb_server.h>
33 #include <openocd.h>
34
35 #include <helper/time_support.h>
36
37 #include <sys/time.h>
38 #include <stdio.h>
39 #include <stdlib.h>
40 #include <string.h>
41 #include <unistd.h>
42 #include <errno.h>
43
44 #include <cyg/io/flash.h>
45 #include <pkgconf/fs_jffs2.h> // Address of JFFS2
46 #include <network.h>
47
48 #include <fcntl.h>
49 #include <sys/stat.h>
50 #include <cyg/fileio/fileio.h>
51 #include <dirent.h>
52 #include <cyg/athttpd/http.h>
53 #include <cyg/athttpd/socket.h>
54 #include <cyg/athttpd/handler.h>
55 #include <cyg/athttpd/cgi.h>
56 #include <cyg/athttpd/forms.h>
57 #include <cyg/discover/discover.h>
58 #include <cyg/io/io.h>
59 #include <cyg/io/serialio.h>
60 #include <netinet/tcp.h>
61 #include <cyg/hal/hal_diag.h>
62
63 #include "rom.h"
64
65 #ifdef CYGPKG_HAL_NIOS2
66 #include <cyg/hal/io.h>
67 #define ZY1000_SER_DEV "/dev/uart_0"
68 #else
69 #define ZY1000_SER_DEV "/dev/ser0"
70
71 #endif
72
73
74 #define MAX_IFS 64
75 #if defined(CYGPKG_NET_FREEBSD_STACK)
76 #include <tftp_support.h>
77 /* posix compatibility broken*/
78 struct tftpd_fileops fileops =
79 {
80 (int (*)(const char *, int))open,
81 close,
82 (int (*)(int, const void *, int))write,
83 (int (*)(int, void *, int))read
84 };
85
86 #endif
87
88
89 void diag_write(char *buf, int len)
90 {
91 int j;
92 for (j = 0; j < len; j++)
93 {
94 diag_printf("%c", buf[j]);
95 }
96 }
97
98 static bool serialLog = true;
99 static bool writeLog = true;
100
101 char hwaddr[512];
102
103 #ifdef CYGPKG_PROFILE_GPROF
104 #include <cyg/profile/profile.h>
105
106 extern char _stext, _etext; // Defined by the linker
107
108 static char *start_of_code=&_stext;
109 static char *end_of_code=&_etext;
110
111 void start_profile(void)
112 {
113 // This starts up the system-wide profiling, gathering
114 // profile information on all of the code, with a 16 byte
115 // "bucket" size, at a rate of 100us/profile hit.
116 // Note: a bucket size of 16 will give pretty good function
117 // resolution. Much smaller and the buffer becomes
118 // much too large for very little gain.
119 // Note: a timer period of 100us is also a reasonable
120 // compromise. Any smaller and the overhead of
121 // handling the timter (profile) interrupt could
122 // swamp the system. A fast processor might get
123 // by with a smaller value, but a slow one could
124 // even be swamped by this value. If the value is
125 // too large, the usefulness of the profile is reduced.
126
127 // no more interrupts than 1/10ms.
128 //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
129 // profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
130 profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
131 }
132 #endif
133
134 static FILE *log;
135
136 static char reboot_stack[2048];
137
138 static void zylinjtag_reboot(cyg_addrword_t data)
139 {
140 serialLog = true;
141 diag_printf("Rebooting in 500 ticks..\n");
142 cyg_thread_delay(500);
143 diag_printf("Unmounting /config..\n");
144 umount("/config");
145 diag_printf("Rebooting..\n");
146 #ifdef CYGPKG_HAL_NIOS2
147 /* This will reboot & reconfigure the FPGA from the bootloader
148 * and on.
149 */
150 IOWR(REMOTE_UPDATE_BASE, 0x20, 0x1);
151 #else
152 HAL_PLATFORM_RESET();
153 #endif
154 }
155 static cyg_thread zylinjtag_thread_object;
156 static cyg_handle_t zylinjtag_thread_handle;
157
158 void reboot(void)
159 {
160 cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
161 (void *) reboot_stack, sizeof(reboot_stack),
162 &zylinjtag_thread_handle, &zylinjtag_thread_object);
163 cyg_thread_resume(zylinjtag_thread_handle);
164 }
165
166 static char zylinjtag_reboot_port_stack[2048];
167 static cyg_thread zylinjtag_reboot_port_thread_object;
168 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
169
170 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
171 {
172 int so_reuseaddr_option = 1;
173
174 int fd;
175 if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
176 {
177 LOG_ERROR("error creating socket: %s", strerror(errno));
178 exit(-1);
179 }
180
181 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
182 sizeof(int));
183
184 struct sockaddr_in sin;
185 unsigned int address_size;
186 address_size = sizeof(sin);
187 memset(&sin, 0, sizeof(sin));
188 sin.sin_family = AF_INET;
189 sin.sin_addr.s_addr = INADDR_ANY;
190 sin.sin_port = htons(1234);
191
192 if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
193 {
194 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
195 exit(-1);
196 }
197
198 if (listen(fd, 1) == -1)
199 {
200 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
201 exit(-1);
202 }
203 // socket_nonblock(fd);
204
205
206 accept(fd, (struct sockaddr *) &sin, &address_size);
207
208 diag_printf("Got reboot signal on port 1234");
209
210 reboot();
211
212 }
213
214 void reboot_port(void)
215 {
216 cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
217 (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
218 &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
219 cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
220 }
221
222 int configuration_output_handler(struct command_context *context,
223 const char* line)
224 {
225 diag_printf("%s", line);
226
227 return ERROR_OK;
228 }
229
230 int zy1000_configuration_output_handler_log(struct command_context *context,
231 const char* line)
232 {
233 LOG_USER_N("%s", line);
234
235 return ERROR_OK;
236 }
237
238 #ifdef CYGPKG_PROFILE_GPROF
239 //extern int64_t totaltime;
240
241 static int zylinjtag_Jim_Command_profile(Jim_Interp *interp, int argc,
242 Jim_Obj * const *argv)
243 {
244 if ((argc == 2) && (strcmp(Jim_GetString(argv[1], NULL), "stats")==0))
245 {
246 // profile_off();
247 //LOG_USER("Stats %dms sleeping in select()", (int)totaltime);
248 } else
249 {
250 LOG_USER("Profiling started");
251 start_profile();
252 //totaltime = 0;
253 }
254 return ERROR_OK;
255 }
256
257 #endif
258
259 externC void phi_init_all_network_interfaces(void);
260
261 struct command_context *cmd_ctx;
262
263 static bool webRunning = false;
264
265 void keep_webserver(void)
266 {
267 // Target initialisation is only attempted at startup, so we sleep forever and
268 // let the http server bail us out(i.e. get config files set up).
269 diag_printf("OpenOCD has invoked exit().\n"
270 "Use web server to correct any configuration settings and reboot.\n");
271 if (!webRunning)
272 reboot();
273
274 // exit() will terminate the current thread and we we'll then sleep eternally or
275 // we'll have a reboot scheduled.
276 }
277
278 extern void printDccChar(char c);
279
280 static char logBuffer[128 * 1024];
281 static const int logSize = sizeof(logBuffer);
282 int writePtr = 0;
283 int logCount = 0;
284
285 void _zylinjtag_diag_write_char(char c, void **param)
286 {
287 if (writeLog)
288 {
289 logBuffer[writePtr] = c;
290 writePtr = (writePtr + 1) % logSize;
291 logCount++;
292 }
293 if (serialLog)
294 {
295 if (c == '\n')
296 {
297 HAL_DIAG_WRITE_CHAR('\r');
298 }
299 HAL_DIAG_WRITE_CHAR(c);
300 }
301
302 #ifdef CYGPKG_HAL_ZYLIN_PHI
303 printDccChar(c);
304 #endif
305 }
306
307 void copyfile(char *name2, char *name1);
308
309 void copydir(char *name, char *destdir);
310
311 #if 0
312 MTAB_ENTRY(romfs_mte1,
313 "/rom",
314 "romfs",
315 "",
316 (CYG_ADDRWORD) &filedata[0]);
317 #endif
318
319 void openocd_sleep_prelude(void)
320 {
321 cyg_mutex_unlock(&httpstate.jim_lock);
322 }
323
324 void openocd_sleep_postlude(void)
325 {
326 cyg_mutex_lock(&httpstate.jim_lock);
327 }
328
329 void format(void)
330 {
331 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
332 diag_printf("Formatting JFFS2...\n");
333
334 cyg_io_handle_t handle;
335
336 Cyg_ErrNo err;
337 err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
338 if (err != ENOERR)
339 {
340 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
341 reboot();
342 }
343
344 cyg_uint32 len;
345 cyg_io_flash_getconfig_devsize_t ds;
346 len = sizeof(ds);
347 err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
348 if (err != ENOERR)
349 {
350 diag_printf("Flash error cyg_io_get_config %d\n", err);
351 reboot();
352 }
353
354 cyg_io_flash_getconfig_erase_t e;
355 len = sizeof(e);
356
357 e.offset = 0;
358 e.len = ds.dev_size;
359
360 diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
361 err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
362 if (err != ENOERR)
363 {
364 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
365 reboot();
366 }
367
368 diag_printf("Flash formatted successfully\n");
369 #endif
370
371 reboot();
372 }
373
374 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
375 Jim_Obj * const *argv)
376 {
377 if (argc != 1)
378 {
379 return JIM_ERR;
380 }
381
382 format();
383 for (;;)
384 ;
385 }
386
387 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
388 Jim_Obj * const *argv)
389 {
390 cyg_handle_t thread = 0;
391 cyg_uint16 id = 0;
392 Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
393
394 /* Loop over the threads, and generate a table row for
395 * each.
396 */
397 while (cyg_thread_get_next(&thread, &id))
398 {
399 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
400
401 cyg_thread_info info;
402 char *state_string;
403
404 cyg_thread_get_info(thread, id, &info);
405
406 if (info.name == NULL)
407 info.name = "<no name>";
408
409 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
410 info.name, strlen(info.name)));
411
412 /* Translate the state into a string.
413 */
414 if (info.state == 0)
415 state_string = "RUN";
416 else if (info.state & 0x04)
417 state_string = "SUSP";
418 else
419 switch (info.state & 0x1b)
420 {
421 case 0x01:
422 state_string = "SLEEP";
423 break;
424 case 0x02:
425 state_string = "CNTSLEEP";
426 break;
427 case 0x08:
428 state_string = "CREATE";
429 break;
430 case 0x10:
431 state_string = "EXIT";
432 break;
433 default:
434 state_string = "????";
435 break;
436 }
437
438 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
439 state_string, strlen(state_string)));
440
441 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
442 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
443 info.set_pri));
444 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
445 info.cur_pri));
446
447 Jim_ListAppendElement(interp, threads, threadObj);
448 }
449 Jim_SetResult(interp, threads);
450
451 return JIM_OK;
452 }
453
454 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
455 Jim_Obj * const *argv)
456 {
457 Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
458
459 if (logCount >= logSize)
460 {
461 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
462 % logSize, logSize - logCount % logSize);
463 }
464 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
465
466 Jim_SetResult(interp, tclOutput);
467 return JIM_OK;
468 }
469
470 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
471 Jim_Obj * const *argv)
472 {
473 reboot();
474 return JIM_OK;
475 }
476
477 static void zylinjtag_startNetwork(void)
478 {
479 // Bring TCP/IP up immediately before we're ready to accept commands.
480 //
481 // That is as soon as a PING responds, we're accepting telnet sessions.
482 #if defined(CYGPKG_NET_FREEBSD_STACK)
483 phi_init_all_network_interfaces();
484 #else
485 lwip_init();
486 #endif
487 if (!eth0_up)
488 {
489 diag_printf("Network not up and running\n");
490 exit(-1);
491 }
492
493 /* very first thing we want is a reboot capability */
494 reboot_port();
495
496 #if defined(CYGPKG_NET_FREEBSD_STACK)
497 /*start TFTP*/
498 tftpd_start(69, &fileops);
499 #endif
500
501 cyg_httpd_init_tcl_interpreter();
502
503 // Kludge! Why can't I do this from httpd.c??? I get linker errors...
504 // some of that --start/end-group stuff?
505 Jim_InitStaticExtensions(httpstate.jim_interp);
506
507 Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
508 NULL, NULL);
509 Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
510 zylinjtag_Jim_Command_reboot, NULL, NULL);
511 Jim_CreateCommand(httpstate.jim_interp, "threads",
512 zylinjtag_Jim_Command_threads, NULL, NULL);
513 Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
514 zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
515
516 cyg_httpd_start();
517
518 webRunning = true;
519
520 diag_printf("Web server running\n");
521
522 int s;
523 struct ifreq ifr;
524 s = socket(AF_INET, SOCK_DGRAM, 0);
525 if (s >= 0)
526 {
527 strcpy(ifr.ifr_name, "eth0");
528 int res;
529 res = ioctl(s, SIOCGIFHWADDR, &ifr);
530 close(s);
531
532 if (res < 0)
533 {
534 diag_printf("Can't obtain MAC address\n");
535 reboot();
536 }
537 }
538
539 sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
540 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
541 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
542 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
543 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
544 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
545 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
546
547 discover_message
548 = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
549
550 discover_launch();
551 }
552
553 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
554 cyg_addrword_t info)
555 {
556 writeLog = false;
557 serialLog = true;
558 char *infoStr = "unknown";
559 switch (exception)
560 {
561 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
562 case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
563 infoStr = "undefined instruction";
564 break;
565 case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
566 infoStr = "software interrupt";
567 break;
568 case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
569 infoStr = "abort prefetch";
570 break;
571 case CYGNUM_HAL_VECTOR_ABORT_DATA:
572 infoStr = "abort data";
573 break;
574 #endif
575 default:
576 break;
577 }
578
579 diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
580
581 diag_printf("Dumping log\n---\n");
582 if (logCount >= logSize)
583 {
584 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
585 }
586 diag_write(logBuffer, writePtr);
587
588 diag_printf("---\nLogdump complete.\n");
589 diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
590 diag_printf("\n---\nRebooting\n");
591 HAL_PLATFORM_RESET();
592
593 }
594
595 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
596 static void setHandler(cyg_code_t exception)
597 {
598 cyg_exception_handler_t *old_handler;
599 cyg_addrword_t old_data;
600
601 cyg_exception_set_handler(exception, print_exception_handler, 0,
602 &old_handler, &old_data);
603 }
604 #endif
605
606 static cyg_thread zylinjtag_uart_thread_object;
607 static cyg_handle_t zylinjtag_uart_thread_handle;
608 static char uart_stack[4096];
609
610 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
611 static char backwardBuffer[1024];
612
613 void setNoDelay(int session, int flag)
614 {
615 #if 1
616 // This decreases latency dramatically for e.g. GDB load which
617 // does not have a sliding window protocol
618 //
619 // Can cause *lots* of TCP/IP packets to be sent and it would have
620 // to be enabled/disabled on the fly to avoid the CPU being
621 // overloaded...
622 setsockopt(session, /* socket affected */
623 IPPROTO_TCP, /* set option at TCP level */
624 TCP_NODELAY, /* name of option */
625 (char *) &flag, /* the cast is historical
626 cruft */
627 sizeof(int)); /* length of option value */
628 #endif
629 }
630
631 #define TEST_TCPIP() 0
632
633 #if TEST_TCPIP
634 struct
635 {
636 int req;
637 int actual;
638 int req2;
639 int actual2;
640 } tcpipSent[512 * 1024];
641 int cur;
642 #endif
643
644 static void zylinjtag_uart(cyg_addrword_t data)
645 {
646 int so_reuseaddr_option = 1;
647
648 int fd;
649 if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
650 {
651 LOG_ERROR("error creating socket: %s", strerror(errno));
652 exit(-1);
653 }
654
655 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
656 sizeof(int));
657
658 struct sockaddr_in sin;
659 unsigned int address_size;
660 address_size = sizeof(sin);
661 memset(&sin, 0, sizeof(sin));
662 sin.sin_family = AF_INET;
663 sin.sin_addr.s_addr = INADDR_ANY;
664 sin.sin_port = htons(5555);
665
666 if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
667 {
668 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
669 exit(-1);
670 }
671
672 if (listen(fd, 1) == -1)
673 {
674 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
675 exit(-1);
676 }
677 // socket_nonblock(fd);
678
679
680 for (;;)
681 {
682 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
683 if (session < 0)
684 {
685 continue;
686 }
687
688 setNoDelay(session, 1);
689 int oldopts = fcntl(session, F_GETFL, 0);
690 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
691
692 int serHandle = open(ZY1000_SER_DEV, O_RDWR | O_NONBLOCK);
693 if (serHandle < 0)
694 {
695 close(session);
696 continue;
697 }
698
699 #ifdef CYGPKG_PROFILE_GPROF
700 start_profile();
701 #endif
702 size_t actual = 0;
703 size_t actual2 = 0;
704 size_t pos, pos2;
705 pos = 0;
706 pos2 = 0;
707 #if TEST_TCPIP
708 cur = 0;
709 #endif
710 for (;;)
711 {
712 fd_set write_fds;
713 fd_set read_fds;
714 FD_ZERO(&write_fds);
715 FD_ZERO(&read_fds);
716 int fd_max = -1;
717 FD_SET(session, &read_fds);
718 fd_max = session;
719 FD_SET(serHandle, &read_fds);
720 if (serHandle > fd_max)
721 {
722 fd_max = serHandle;
723 }
724 /* Wait... */
725
726 cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
727 if ((actual == 0) && (actual2 == 0))
728 {
729 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
730 if (retval <= 0)
731 {
732 break;
733 }
734 }
735
736 if (actual2 <= 0)
737 {
738 memset(backwardBuffer, 's', sizeof(backwardBuffer));
739 int t;
740 t = read(serHandle, backwardBuffer,
741 sizeof(backwardBuffer));
742 actual2 = t;
743 if (t < 0)
744 {
745 if (errno != EAGAIN)
746 {
747 goto closeSession;
748 }
749 actual2 = 0;
750 }
751 pos2 = 0;
752 }
753
754 size_t y = 0;
755 if (actual2 > 0)
756 {
757 int written = write(session, backwardBuffer + pos2, actual2);
758 if (written <= 0)
759 goto closeSession;
760 actual2 -= written;
761 pos2 += written;
762 y = written;
763 }
764
765 if (FD_ISSET(session, &read_fds)
766 && (sizeof(forwardBuffer) > actual))
767 {
768 // NB! Here it is important that we empty the TCP/IP read buffer
769 // to make transmission tick right
770 memmove(forwardBuffer, forwardBuffer + pos, actual);
771 pos = 0;
772 int t;
773 // this will block if there is no data at all
774 t = read_socket(session, forwardBuffer + actual,
775 sizeof(forwardBuffer) - actual);
776 if (t <= 0)
777 {
778 goto closeSession;
779 }
780 actual += t;
781 }
782
783 int y2 = 0;
784 if (actual > 0)
785 {
786 /* Do not put things into the serial buffer if it has something to send
787 * as that can cause a single byte to be sent at the time.
788 *
789 *
790 */
791 int written = write(serHandle, forwardBuffer + pos, actual);
792 if (written < 0)
793 {
794 if (errno != EAGAIN)
795 {
796 goto closeSession;
797 }
798 // The serial buffer is full
799 written = 0;
800 }
801 else
802 {
803 actual -= written;
804 pos += written;
805 }
806 y2 = written;
807 }
808 #if TEST_TCPIP
809 if (cur < 1024)
810 {
811 tcpipSent[cur].req = x;
812 tcpipSent[cur].actual = y;
813 tcpipSent[cur].req2 = x2;
814 tcpipSent[cur].actual2 = y2;
815 cur++;
816 }
817 #endif
818 }
819 closeSession: close(session);
820 close(serHandle);
821
822 #if TEST_TCPIP
823 int i;
824 for (i = 0; i < 1024; i++)
825 {
826 diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
827 tcpipSent[i].req2, tcpipSent[i].actual2);
828
829 }
830 #endif
831 }
832 close(fd);
833
834 }
835
836 void startUart(void)
837 {
838 cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
839 (void *) uart_stack, sizeof(uart_stack),
840 &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
841 cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
842 cyg_thread_resume(zylinjtag_uart_thread_handle);
843 }
844
845 static int zylinjtag_Jim_Command_uart(Jim_Interp *interp, int argc,
846 Jim_Obj * const *argv)
847 {
848 static int current_baud = 38400;
849 if (argc == 1)
850 {
851 Jim_SetResult(interp, Jim_NewIntObj(interp, current_baud));
852 return JIM_OK;
853 }
854 else if (argc != 2)
855 {
856 return JIM_ERR;
857 }
858
859 long new_baudrate;
860 if (Jim_GetLong(interp, argv[1], &new_baudrate) != JIM_OK)
861 return JIM_ERR;
862
863 current_baud = new_baudrate;
864
865 int baud;
866 switch (current_baud)
867 {
868 case 9600:
869 baud = CYGNUM_SERIAL_BAUD_9600;
870 break;
871 case 19200:
872 baud = CYGNUM_SERIAL_BAUD_19200;
873 break;
874 case 38400:
875 baud = CYGNUM_SERIAL_BAUD_38400;
876 break;
877 case 57600:
878 baud = CYGNUM_SERIAL_BAUD_57600;
879 break;
880 case 115200:
881 baud = CYGNUM_SERIAL_BAUD_115200;
882 break;
883 case 230400:
884 baud = CYGNUM_SERIAL_BAUD_230400;
885 break;
886 default:
887 Jim_SetResult(interp, Jim_NewStringObj(interp, "unsupported baudrate", -1));
888 return JIM_ERR;
889 }
890
891 cyg_serial_info_t buf;
892 cyg_uint32 len = 1;
893 //get existing serial configuration
894 len = sizeof(cyg_serial_info_t);
895 int err;
896 cyg_io_handle_t serial_handle;
897
898 err = cyg_io_lookup(ZY1000_SER_DEV, &serial_handle);
899 if (err != ENOERR)
900 {
901 Jim_SetResult(interp, Jim_NewStringObj(interp, "Could not open serial port", -1));
902 return JIM_ERR;
903 }
904
905 err = cyg_io_get_config(serial_handle,
906 CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
907 err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
908 &len);
909 if (err != ENOERR)
910 {
911 Jim_SetResult(interp, Jim_NewStringObj(interp, "Failed to get serial port settings", -1));
912 return JIM_ERR;
913 }
914 buf.baud = baud;
915
916 err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
917 &len);
918 if (err != ENOERR)
919 {
920 Jim_SetResult(interp, Jim_NewStringObj(interp, "Failed to set serial port settings", -1));
921 return JIM_ERR;
922 }
923
924 return JIM_OK;
925 }
926
927 bool logAllToSerial = false;
928
929
930 int boolParam(char *var);
931
932
933 static const char *zylin_config_dir="/config/settings";
934
935 static int add_default_dirs(void)
936 {
937 add_script_search_dir(zylin_config_dir);
938 add_script_search_dir("/rom/lib/openocd");
939 add_script_search_dir("/rom");
940 return ERROR_OK;
941 }
942
943 int main(int argc, char *argv[])
944 {
945 /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
946 * need to allocate towards the end of the heap. */
947
948 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
949 setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
950 setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
951 setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
952 #endif
953
954 int err;
955
956 atexit(keep_webserver);
957
958 diag_init_putc(_zylinjtag_diag_write_char);
959 // We want this in the log.
960 #ifdef CYGPKG_HAL_NIOS2
961 diag_printf("Zylin ZY1000 PCB revc.\n");
962 #else
963 diag_printf("Zylin ZY1000 PCB revb.\n");
964 #endif
965
966 err = mount("", "/ram", "ramfs");
967 if (err < 0)
968 {
969 diag_printf("unable to mount ramfs\n");
970 }
971 chdir("/ram");
972
973 char address[16];
974 sprintf(address, "%p", &filedata[0]);
975 err = mount(address, "/rom", "romfs");
976 if (err < 0)
977 {
978 diag_printf("unable to mount /rom\n");
979 }
980
981 err = mount("", "/log", "logfs");
982 if (err < 0)
983 {
984 diag_printf("unable to mount logfs\n");
985 }
986
987 err = mount("", "/tftp", "tftpfs");
988 if (err < 0)
989 {
990 diag_printf("unable to mount logfs\n");
991 }
992
993 log = fopen("/log/log", "w");
994 if (log == NULL)
995 {
996 diag_printf("Could not open log file /ram/log\n");
997 exit(-1);
998 }
999
1000
1001 copydir("/rom", "/ram/cgi");
1002
1003 #ifdef CYGPKG_HAL_NIOS2
1004 cyg_flashaddr_t err_address;
1005 #define UNCACHED_EXT_FLASH_BASE (0x80000000 + EXT_FLASH_BASE)
1006 /* The revc flash is locked upon reset, unlock it */
1007 #ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
1008 if ((err = flash_unlock((void *) UNCACHED_EXT_FLASH_BASE, EXT_FLASH_SPAN,
1009 (void **) &err_address)) != 0)
1010 {
1011 diag_printf("Error: could not unlock flash\n");
1012 }
1013 #endif
1014 #endif
1015
1016
1017 err = mount("/dev/flash1", "/config", "jffs2");
1018 if (err < 0)
1019 {
1020 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1021 err = mount("", "/config", "ramfs");
1022 if (err < 0)
1023 {
1024 diag_printf("unable to mount /config as ramdisk.\n");
1025 reboot();
1026 }
1027 }
1028 else
1029 {
1030 /* are we using a ram disk instead of a flash disk? This is used
1031 * for ZY1000 live demo...
1032 *
1033 * copy over flash disk to ram block device
1034 */
1035 if (boolParam("ramdisk"))
1036 {
1037 diag_printf("Unmounting /config from flash and using ram instead\n");
1038 err = umount("/config");
1039 if (err < 0)
1040 {
1041 diag_printf("unable to unmount jffs\n");
1042 reboot();
1043 }
1044
1045 err = mount("/dev/flash1", "/config2", "jffs2");
1046 if (err < 0)
1047 {
1048 diag_printf("unable to mount jffs\n");
1049 reboot();
1050 }
1051
1052 err = mount("", "/config", "ramfs");
1053 if (err < 0)
1054 {
1055 diag_printf("unable to mount ram block device\n");
1056 reboot();
1057 }
1058
1059 // copydir("/config2", "/config");
1060 copyfile("/config2/ip", "/config/ip");
1061 copydir("/config2/settings", "/config/settings");
1062
1063 umount("/config2");
1064 }
1065 }
1066
1067 mkdir(zylin_config_dir, 0777);
1068 char *dirname = alloc_printf("%s/target", zylin_config_dir);
1069 mkdir(dirname, 0777);
1070 free(dirname);
1071 dirname = alloc_printf("%s/board", zylin_config_dir);
1072 mkdir(dirname, 0777);
1073 free(dirname);
1074 dirname = alloc_printf("%s/event", zylin_config_dir);
1075 mkdir(dirname, 0777);
1076 free(dirname);
1077
1078 logAllToSerial = boolParam("logserial");
1079
1080 // We need the network & web server in case there is something wrong with
1081 // the config files that invoke exit()
1082 zylinjtag_startNetwork();
1083
1084 /* we're going to access the jim interpreter from here on... */
1085 openocd_sleep_postlude();
1086 startUart();
1087
1088 add_default_dirs();
1089
1090 /* initialize commandline interface */
1091 struct command_context * cmd_ctx;
1092 struct command_context *setup_command_handler(Jim_Interp *interp);
1093 cmd_ctx = setup_command_handler(httpstate.jim_interp);
1094 command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1095 command_context_mode(cmd_ctx, COMMAND_CONFIG);
1096
1097 if (util_init(cmd_ctx) != ERROR_OK)
1098 return EXIT_FAILURE;
1099
1100 if (ioutil_init(cmd_ctx) != ERROR_OK)
1101 return EXIT_FAILURE;
1102
1103 #ifdef CYGPKG_PROFILE_GPROF
1104 Jim_CreateCommand(httpstate.jim_interp, "zy1000_profile", zylinjtag_Jim_Command_profile,
1105 NULL, NULL);
1106 #endif
1107
1108 Jim_CreateCommand(httpstate.jim_interp, "zy1000_uart", zylinjtag_Jim_Command_uart, NULL, NULL);
1109
1110
1111 log_init();
1112
1113 set_log_output(cmd_ctx, log);
1114
1115 LOG_DEBUG("log init complete");
1116
1117 // diag_printf("Executing config files\n");
1118
1119 if (logAllToSerial)
1120 {
1121 diag_printf(
1122 "%s/logserial = 1 => sending log output to serial port using \"debug_level 3\" as default.\n", zylin_config_dir);
1123 command_run_line(cmd_ctx, "debug_level 3");
1124 }
1125
1126 command_run_linef(cmd_ctx, "script /rom/openocd.cfg");
1127
1128 int ret;
1129 ret = server_init(cmd_ctx);
1130 if (ERROR_OK != ret)
1131 return EXIT_FAILURE;
1132
1133 /* we MUST always run the init command as it will launch telnet sessions */
1134 command_run_line(cmd_ctx, "init");
1135
1136 // FIX!!! Yuk!
1137 // diag_printf() is really invoked from many more places than we trust it
1138 // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1139 //
1140 // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1141 // fingers that it doesn't cause any crashes.
1142 diag_printf("Init complete, GDB & telnet servers launched.\n");
1143 command_set_output_handler(cmd_ctx,
1144 zy1000_configuration_output_handler_log, NULL);
1145 if (!logAllToSerial)
1146 {
1147 serialLog = false;
1148 }
1149
1150 /* handle network connections */
1151 server_loop(cmd_ctx);
1152 openocd_sleep_prelude();
1153
1154 /* shut server down */
1155 server_quit();
1156
1157 /* free commandline interface */
1158 command_done(cmd_ctx);
1159 umount("/config");
1160
1161 exit(0);
1162 for (;;)
1163 ;
1164 }
1165
1166 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1167 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1168 {
1169 cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1170 return 0;
1171 }
1172
1173 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1174
1175 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1176 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1177
1178 #include <pkgconf/system.h>
1179 #include <pkgconf/hal.h>
1180 #include <pkgconf/kernel.h>
1181 #include <pkgconf/io_fileio.h>
1182 #include <pkgconf/fs_rom.h>
1183
1184 #include <cyg/kernel/ktypes.h> // base kernel types
1185 #include <cyg/infra/cyg_trac.h> // tracing macros
1186 #include <cyg/infra/cyg_ass.h> // assertion macros
1187 #include <cyg/fileio/fileio.h>
1188 #include <cyg/kernel/kapi.h>
1189 #include <cyg/infra/diag.h>
1190
1191 //==========================================================================
1192 // Eventually we want to eXecute In Place from the ROM in a protected
1193 // environment, so we'll need executables to be aligned to a boundary
1194 // suitable for MMU protection. A suitable boundary would be the 4k
1195 // boundary in all the CPU architectures I am currently aware of.
1196
1197 // Forward definitions
1198
1199 // Filesystem operations
1200 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1201 static int tftpfs_umount(cyg_mtab_entry *mte);
1202 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1203 int mode, cyg_file *fte);
1204 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1205 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1206
1207 // File operations
1208 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1209 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1210 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1211
1212 //==========================================================================
1213 // Filesystem table entries
1214
1215 // -------------------------------------------------------------------------
1216 // Fstab entry.
1217 // This defines the entry in the filesystem table.
1218 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1219 // we should never block in any filesystem operations.
1220 #if 1
1221 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1222 CYG_SYNCMODE_NONE,
1223 tftpfs_mount,
1224 tftpfs_umount,
1225 tftpfs_open,
1226 (cyg_fsop_unlink *)cyg_fileio_erofs,
1227 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1228 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1229 (cyg_fsop_rename *)cyg_fileio_erofs,
1230 (cyg_fsop_link *)cyg_fileio_erofs,
1231 (cyg_fsop_opendir *)cyg_fileio_erofs,
1232 (cyg_fsop_chdir *)cyg_fileio_erofs,
1233 (cyg_fsop_stat *)cyg_fileio_erofs,
1234 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1235 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1236 #endif
1237
1238 // -------------------------------------------------------------------------
1239 // mtab entry.
1240 // This defines a single ROMFS loaded into ROM at the configured address
1241 //
1242 // MTAB_ENTRY(rom_mte, // structure name
1243 // "/rom", // mount point
1244 // "romfs", // FIlesystem type
1245 // "", // hardware device
1246 // (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS // Address in ROM
1247 //);
1248
1249
1250 // -------------------------------------------------------------------------
1251 // File operations.
1252 // This set of file operations are used for normal open files.
1253
1254 static cyg_fileops tftpfs_fileops =
1255 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1256 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1257 tftpfs_fo_fsync, tftpfs_fo_close,
1258 (cyg_fileop_fstat *) cyg_fileio_erofs,
1259 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1260 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1261
1262 // -------------------------------------------------------------------------
1263 // tftpfs_mount()
1264 // Process a mount request. This mainly finds root for the
1265 // filesystem.
1266
1267 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1268 {
1269 return ENOERR;
1270 }
1271
1272 static int tftpfs_umount(cyg_mtab_entry *mte)
1273 {
1274 return ENOERR;
1275 }
1276
1277 struct Tftp
1278 {
1279 int write;
1280 int readFile;
1281 cyg_uint8 *mem;
1282 int actual;
1283 char *server;
1284 int port;
1285 char *file;
1286 };
1287
1288 static void freeTftp(struct Tftp *t)
1289 {
1290 if (t == NULL)
1291 return;
1292 if (t->mem)
1293 free(t->mem);
1294 if (t->server)
1295 free(t->server);
1296 if (t->file)
1297 free(t->file);
1298 free(t);
1299 }
1300
1301 static const int tftpMaxSize = 8192 * 1024;
1302 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1303 int mode, cyg_file *file)
1304 {
1305 struct Tftp *tftp;
1306 tftp = malloc(sizeof(struct Tftp));
1307 if (tftp == NULL)
1308 return EMFILE;
1309 memset(tftp, 0, sizeof(struct Tftp));
1310
1311 file->f_flag |= mode & CYG_FILE_MODE_MASK;
1312 file->f_type = CYG_FILE_TYPE_FILE;
1313 file->f_ops = &tftpfs_fileops;
1314 file->f_offset = 0;
1315 file->f_data = 0;
1316 file->f_xops = 0;
1317
1318 tftp->mem = malloc(tftpMaxSize);
1319 if (tftp->mem == NULL)
1320 {
1321 freeTftp(tftp);
1322 return EMFILE;
1323 }
1324
1325 char *server = strchr(name, '/');
1326 if (server == NULL)
1327 {
1328 freeTftp(tftp);
1329 return EMFILE;
1330 }
1331
1332 tftp->server = malloc(server - name + 1);
1333 if (tftp->server == NULL)
1334 {
1335 freeTftp(tftp);
1336 return EMFILE;
1337 }
1338 strncpy(tftp->server, name, server - name);
1339 tftp->server[server - name] = 0;
1340
1341 tftp->port = 0; /* default port 69 */
1342 char *port;
1343 port = strchr(tftp->server, ':');
1344 if (port != NULL)
1345 {
1346 tftp->port = atoi(port + 1);
1347 *port = 0;
1348 }
1349
1350 tftp->file = strdup(server + 1);
1351 if (tftp->file == NULL)
1352 {
1353 freeTftp(tftp);
1354 return EMFILE;
1355 }
1356
1357 file->f_data = (CYG_ADDRWORD) tftp;
1358
1359 return ENOERR;
1360 }
1361
1362 static int fetchTftp(struct Tftp *tftp)
1363 {
1364 if (!tftp->readFile)
1365 {
1366 int err;
1367 tftp->actual = tftp_client_get(tftp->file, tftp->server, tftp->port, tftp->mem,
1368 tftpMaxSize, TFTP_OCTET, &err);
1369
1370 if (tftp->actual < 0)
1371 {
1372 return EMFILE;
1373 }
1374 tftp->readFile = 1;
1375 }
1376 return ENOERR;
1377 }
1378
1379 // -------------------------------------------------------------------------
1380 // tftpfs_fo_write()
1381 // Read data from file.
1382
1383 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1384 {
1385 struct Tftp *tftp = (struct Tftp *) fp->f_data;
1386
1387 if (fetchTftp(tftp) != ENOERR)
1388 return EMFILE;
1389
1390 int i;
1391 off_t pos = fp->f_offset;
1392 int resid = 0;
1393 for (i = 0; i < uio->uio_iovcnt; i++)
1394 {
1395 cyg_iovec *iov = &uio->uio_iov[i];
1396 char *buf = (char *) iov->iov_base;
1397 off_t len = iov->iov_len;
1398
1399 if (len + pos > tftp->actual)
1400 {
1401 len = tftp->actual - pos;
1402 }
1403 resid += iov->iov_len - len;
1404
1405 memcpy(buf, tftp->mem + pos, len);
1406 pos += len;
1407
1408 }
1409 uio->uio_resid = resid;
1410 fp->f_offset = pos;
1411
1412 return ENOERR;
1413 }
1414
1415 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1416 {
1417 struct Tftp *tftp = (struct Tftp *) fp->f_data;
1418
1419 int i;
1420 off_t pos = fp->f_offset;
1421 int resid = 0;
1422 for (i = 0; i < uio->uio_iovcnt; i++)
1423 {
1424 cyg_iovec *iov = &uio->uio_iov[i];
1425 char *buf = (char *) iov->iov_base;
1426 off_t len = iov->iov_len;
1427
1428 if (len + pos > tftpMaxSize)
1429 {
1430 len = tftpMaxSize - pos;
1431 }
1432 resid += iov->iov_len - len;
1433
1434 memcpy(tftp->mem + pos, buf, len);
1435 pos += len;
1436
1437 }
1438 uio->uio_resid = resid;
1439 fp->f_offset = pos;
1440
1441 tftp->write = 1;
1442
1443 return ENOERR;
1444 }
1445
1446 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1447 {
1448 int error = ENOERR;
1449 return error;
1450 }
1451
1452 // -------------------------------------------------------------------------
1453 // romfs_fo_close()
1454 // Close a file. We just clear out the data pointer.
1455
1456 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1457 {
1458 struct Tftp *tftp = (struct Tftp *) fp->f_data;
1459 int error = ENOERR;
1460
1461 if (tftp->write)
1462 {
1463 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1464 TFTP_OCTET, &error);
1465 }
1466
1467 freeTftp(tftp);
1468 fp->f_data = 0;
1469 return error;
1470 }
1471
1472 // -------------------------------------------------------------------------
1473 // romfs_fo_lseek()
1474 // Seek to a new file position.
1475
1476 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1477 {
1478 struct Tftp *tftp = (struct Tftp *) fp->f_data;
1479 off_t pos = *apos;
1480
1481 if (fetchTftp(tftp) != ENOERR)
1482 return EMFILE;
1483
1484 switch (whence)
1485 {
1486 case SEEK_SET:
1487 // Pos is already where we want to be.
1488 break;
1489
1490 case SEEK_CUR:
1491 // Add pos to current offset.
1492 pos += fp->f_offset;
1493 break;
1494
1495 case SEEK_END:
1496 // Add pos to file size.
1497 pos += tftp->actual;
1498 break;
1499
1500 default:
1501 return EINVAL;
1502 }
1503
1504 // Check that pos is still within current file size, or at the
1505 // very end.
1506 if (pos < 0 || pos > tftp->actual)
1507 return EINVAL;
1508
1509 // All OK, set fp offset and return new position.
1510 *apos = fp->f_offset = pos;
1511
1512 return ENOERR;
1513 }
1514
1515 void usleep(int us)
1516 {
1517 if (us > 10000)
1518 cyg_thread_delay(us / 10000 + 1);
1519 else
1520 HAL_DELAY_US(us);
1521 }
1522
1523 // Chunked version.
1524 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1525 {
1526 cyg_httpd_start_chunked("text");
1527 if (logCount >= logSize)
1528 {
1529 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1530 - logCount % logSize);
1531 }
1532 cyg_httpd_write_chunked(logBuffer, writePtr);
1533 cyg_httpd_end_chunked();
1534 return -1;
1535 }
1536
1537 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1538
1539 // Filesystem operations
1540 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1541 static int logfs_umount(cyg_mtab_entry *mte);
1542 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1543 int mode, cyg_file *fte);
1544 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1545
1546 // File operations
1547 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1548 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1549
1550 #include <cyg/io/devtab.h>
1551
1552 //==========================================================================
1553 // Filesystem table entries
1554
1555 // -------------------------------------------------------------------------
1556 // Fstab entry.
1557 // This defines the entry in the filesystem table.
1558 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1559 // we should never block in any filesystem operations.
1560 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1561 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1562 logfs_mount,
1563 logfs_umount,
1564 logfs_open,
1565 (cyg_fsop_unlink *)cyg_fileio_erofs,
1566 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1567 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1568 (cyg_fsop_rename *)cyg_fileio_erofs,
1569 (cyg_fsop_link *)cyg_fileio_erofs,
1570 (cyg_fsop_opendir *)cyg_fileio_erofs,
1571 (cyg_fsop_chdir *)cyg_fileio_erofs,
1572 (cyg_fsop_stat *)cyg_fileio_erofs,
1573 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1574 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1575
1576 // -------------------------------------------------------------------------
1577 // File operations.
1578 // This set of file operations are used for normal open files.
1579
1580 static cyg_fileops logfs_fileops =
1581 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1582 (cyg_fileop_lseek *) cyg_fileio_erofs,
1583 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1584 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1585 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1586 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1587
1588 // -------------------------------------------------------------------------
1589 // logfs_mount()
1590 // Process a mount request. This mainly finds root for the
1591 // filesystem.
1592
1593 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1594 {
1595 return ENOERR;
1596 }
1597
1598 static int logfs_umount(cyg_mtab_entry *mte)
1599 {
1600 return ENOERR;
1601 }
1602
1603 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1604 int mode, cyg_file *file)
1605 {
1606 file->f_flag |= mode & CYG_FILE_MODE_MASK;
1607 file->f_type = CYG_FILE_TYPE_FILE;
1608 file->f_ops = &logfs_fileops;
1609 file->f_offset = 0;
1610 file->f_data = 0;
1611 file->f_xops = 0;
1612 return ENOERR;
1613 }
1614
1615 // -------------------------------------------------------------------------
1616 // logfs_fo_write()
1617 // Write data to file.
1618
1619 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1620 {
1621 int i;
1622 for (i = 0; i < uio->uio_iovcnt; i++)
1623 {
1624 cyg_iovec *iov = &uio->uio_iov[i];
1625 char *buf = (char *) iov->iov_base;
1626 off_t len = iov->iov_len;
1627
1628 diag_write(buf, len);
1629 }
1630 uio->uio_resid = 0;
1631
1632 return ENOERR;
1633 }
1634 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1635 {
1636 return ENOERR;
1637 }
1638
1639 // -------------------------------------------------------------------------
1640 // romfs_fo_close()
1641 // Close a file. We just clear out the data pointer.
1642
1643 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1644 {
1645 return ENOERR;
1646 }
1647
1648 int loadFile(const char *fileName, void **data, int *len);
1649
1650 /* boolean parameter stored on config */
1651 int boolParam(char *var)
1652 {
1653 bool result = false;
1654 char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1655 if (name == NULL)
1656 return result;
1657
1658 void *data;
1659 int len;
1660 if (loadFile(name, &data, &len) == ERROR_OK)
1661 {
1662 if (len > 1)
1663 len = 1;
1664 result = strncmp((char *) data, "1", len) == 0;
1665 free(data);
1666 }
1667 free(name);
1668 return result;
1669 }
1670