ARMv7-M: make DAP commands verify target is an ARMv7-M
[openocd.git] / src / ecosboard.c
1 /***************************************************************************
2 * Copyright (C) 2007-2009 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/configuration.h>
28
29 #include <server/server.h>
30 #include <server/telnet_server.h>
31 #include <server/gdb_server.h>
32 #include <openocd.h>
33
34 #include <helper/time_support.h>
35
36 #include <sys/time.h>
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <string.h>
40 #include <unistd.h>
41 #include <errno.h>
42
43 #include <cyg/io/flash.h>
44 #include <pkgconf/fs_jffs2.h> // Address of JFFS2
45 #include <network.h>
46
47 #include <fcntl.h>
48 #include <sys/stat.h>
49 #include <cyg/fileio/fileio.h>
50 #include <dirent.h>
51 #include <cyg/athttpd/http.h>
52 #include <cyg/athttpd/socket.h>
53 #include <cyg/athttpd/handler.h>
54 #include <cyg/athttpd/cgi.h>
55 #include <cyg/athttpd/forms.h>
56 #include <cyg/discover/discover.h>
57 #include <cyg/io/io.h>
58 #include <cyg/io/serialio.h>
59 #include <netinet/tcp.h>
60 #include <cyg/hal/hal_diag.h>
61
62 #include "rom.h"
63
64 #ifdef CYGPKG_HAL_NIOS2
65 #include <cyg/hal/io.h>
66 #define ZY1000_SER_DEV "/dev/uart_0"
67 #else
68 #define ZY1000_SER_DEV "/dev/ser0"
69
70 #endif
71
72
73 #define MAX_IFS 64
74 #if defined(CYGPKG_NET_FREEBSD_STACK)
75 #include <tftp_support.h>
76 /* posix compatibility broken*/
77 struct tftpd_fileops fileops =
78 {
79 (int (*)(const char *, int))open,
80 close,
81 (int (*)(int, const void *, int))write,
82 (int (*)(int, void *, int))read
83 };
84
85 #endif
86
87
88 void diag_write(char *buf, int len)
89 {
90 int j;
91 for (j = 0; j < len; j++)
92 {
93 diag_printf("%c", buf[j]);
94 }
95 }
96
97 static bool serialLog = true;
98 static bool writeLog = true;
99
100 char hwaddr[512];
101
102
103 extern struct flash_driver *flash_drivers[];
104 extern struct target_type *target_types[];
105
106 #ifdef CYGPKG_PROFILE_GPROF
107 #include <cyg/profile/profile.h>
108
109 extern char _stext, _etext; // Defined by the linker
110
111 static char *start_of_code=&_stext;
112 static char *end_of_code=&_etext;
113
114 void start_profile(void)
115 {
116 // This starts up the system-wide profiling, gathering
117 // profile information on all of the code, with a 16 byte
118 // "bucket" size, at a rate of 100us/profile hit.
119 // Note: a bucket size of 16 will give pretty good function
120 // resolution. Much smaller and the buffer becomes
121 // much too large for very little gain.
122 // Note: a timer period of 100us is also a reasonable
123 // compromise. Any smaller and the overhead of
124 // handling the timter (profile) interrupt could
125 // swamp the system. A fast processor might get
126 // by with a smaller value, but a slow one could
127 // even be swamped by this value. If the value is
128 // too large, the usefulness of the profile is reduced.
129
130 // no more interrupts than 1/10ms.
131 //profile_on((void *)0, (void *)0x40000, 16, 10000); // SRAM
132 // profile_on(0, &_etext, 16, 10000); // SRAM & DRAM
133 profile_on(start_of_code, end_of_code, 16, 10000); // Nios DRAM
134 }
135 #endif
136
137 static FILE *log;
138
139 static char reboot_stack[2048];
140
141 static void zylinjtag_reboot(cyg_addrword_t data)
142 {
143 serialLog = true;
144 diag_printf("Rebooting in 500 ticks..\n");
145 cyg_thread_delay(500);
146 diag_printf("Unmounting /config..\n");
147 umount("/config");
148 diag_printf("Rebooting..\n");
149 #ifdef CYGPKG_HAL_NIOS2
150 /* This will reboot & reconfigure the FPGA from the bootloader
151 * and on.
152 */
153 IOWR(REMOTE_UPDATE_BASE, 0x20, 0x1);
154 #else
155 HAL_PLATFORM_RESET();
156 #endif
157 }
158 static cyg_thread zylinjtag_thread_object;
159 static cyg_handle_t zylinjtag_thread_handle;
160
161 void reboot(void)
162 {
163 cyg_thread_create(1, zylinjtag_reboot, (cyg_addrword_t) 0, "reboot Thread",
164 (void *) reboot_stack, sizeof(reboot_stack),
165 &zylinjtag_thread_handle, &zylinjtag_thread_object);
166 cyg_thread_resume(zylinjtag_thread_handle);
167 }
168
169 static char zylinjtag_reboot_port_stack[2048];
170 static cyg_thread zylinjtag_reboot_port_thread_object;
171 static cyg_handle_t zylinjtag_reboot_port_thread_handle;
172
173 static void zylinjtag_reboot_port_task(cyg_addrword_t data)
174 {
175 int so_reuseaddr_option = 1;
176
177 int fd;
178 if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
179 {
180 LOG_ERROR("error creating socket: %s", strerror(errno));
181 exit(-1);
182 }
183
184 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
185 sizeof(int));
186
187 struct sockaddr_in sin;
188 unsigned int address_size;
189 address_size = sizeof(sin);
190 memset(&sin, 0, sizeof(sin));
191 sin.sin_family = AF_INET;
192 sin.sin_addr.s_addr = INADDR_ANY;
193 sin.sin_port = htons(1234);
194
195 if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
196 {
197 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
198 exit(-1);
199 }
200
201 if (listen(fd, 1) == -1)
202 {
203 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
204 exit(-1);
205 }
206 // socket_nonblock(fd);
207
208
209 accept(fd, (struct sockaddr *) &sin, &address_size);
210
211 diag_printf("Got reboot signal on port 1234");
212
213 reboot();
214
215 }
216
217 void reboot_port(void)
218 {
219 cyg_thread_create(1, zylinjtag_reboot_port_task, (cyg_addrword_t) 0, "wait for reboot signal on port 1234",
220 (void *) zylinjtag_reboot_port_stack, sizeof(zylinjtag_reboot_port_stack),
221 &zylinjtag_reboot_port_thread_handle, &zylinjtag_reboot_port_thread_object);
222 cyg_thread_resume(zylinjtag_reboot_port_thread_handle);
223 }
224
225 int configuration_output_handler(struct command_context *context,
226 const char* line)
227 {
228 diag_printf("%s", line);
229
230 return ERROR_OK;
231 }
232
233 int zy1000_configuration_output_handler_log(struct command_context *context,
234 const char* line)
235 {
236 LOG_USER_N("%s", line);
237
238 return ERROR_OK;
239 }
240
241 #ifdef CYGPKG_PROFILE_GPROF
242 //extern int64_t totaltime;
243
244 static int zylinjtag_Jim_Command_profile(Jim_Interp *interp, int argc,
245 Jim_Obj * const *argv)
246 {
247 if ((argc == 2) && (strcmp(Jim_GetString(argv[1], NULL), "stats")==0))
248 {
249 // profile_off();
250 //LOG_USER("Stats %dms sleeping in select()", (int)totaltime);
251 } else
252 {
253 LOG_USER("Profiling started");
254 start_profile();
255 //totaltime = 0;
256 }
257 return ERROR_OK;
258 }
259
260 #endif
261
262 externC void phi_init_all_network_interfaces(void);
263
264 struct command_context *cmd_ctx;
265
266 static bool webRunning = false;
267
268 void keep_webserver(void)
269 {
270 // Target initialisation is only attempted at startup, so we sleep forever and
271 // let the http server bail us out(i.e. get config files set up).
272 diag_printf("OpenOCD has invoked exit().\n"
273 "Use web server to correct any configuration settings and reboot.\n");
274 if (!webRunning)
275 reboot();
276
277 // exit() will terminate the current thread and we we'll then sleep eternally or
278 // we'll have a reboot scheduled.
279 }
280
281 extern void printDccChar(char c);
282
283 static char logBuffer[128 * 1024];
284 static const int logSize = sizeof(logBuffer);
285 int writePtr = 0;
286 int logCount = 0;
287
288 void _zylinjtag_diag_write_char(char c, void **param)
289 {
290 if (writeLog)
291 {
292 logBuffer[writePtr] = c;
293 writePtr = (writePtr + 1) % logSize;
294 logCount++;
295 }
296 if (serialLog)
297 {
298 if (c == '\n')
299 {
300 HAL_DIAG_WRITE_CHAR('\r');
301 }
302 HAL_DIAG_WRITE_CHAR(c);
303 }
304
305 #ifdef CYGPKG_HAL_ZYLIN_PHI
306 printDccChar(c);
307 #endif
308 }
309
310 void copyfile(char *name2, char *name1);
311
312 void copydir(char *name, char *destdir);
313
314 #if 0
315 MTAB_ENTRY(romfs_mte1,
316 "/rom",
317 "romfs",
318 "",
319 (CYG_ADDRWORD) &filedata[0]);
320 #endif
321
322 void openocd_sleep_prelude(void)
323 {
324 cyg_mutex_unlock(&httpstate.jim_lock);
325 }
326
327 void openocd_sleep_postlude(void)
328 {
329 cyg_mutex_lock(&httpstate.jim_lock);
330 }
331
332 void format(void)
333 {
334 #ifdef CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1
335 diag_printf("Formatting JFFS2...\n");
336
337 cyg_io_handle_t handle;
338
339 Cyg_ErrNo err;
340 err = cyg_io_lookup(CYGDAT_IO_FLASH_BLOCK_DEVICE_NAME_1, &handle);
341 if (err != ENOERR)
342 {
343 diag_printf("Flash Error cyg_io_lookup: %d\n", err);
344 reboot();
345 }
346
347 cyg_uint32 len;
348 cyg_io_flash_getconfig_devsize_t ds;
349 len = sizeof(ds);
350 err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_DEVSIZE, &ds, &len);
351 if (err != ENOERR)
352 {
353 diag_printf("Flash error cyg_io_get_config %d\n", err);
354 reboot();
355 }
356
357 cyg_io_flash_getconfig_erase_t e;
358 len = sizeof(e);
359
360 e.offset = 0;
361 e.len = ds.dev_size;
362
363 diag_printf("Formatting 0x%08x bytes\n", (int)ds.dev_size);
364 err = cyg_io_get_config(handle, CYG_IO_GET_CONFIG_FLASH_ERASE, &e, &len);
365 if (err != ENOERR)
366 {
367 diag_printf("Flash erase error %d offset 0x%08x\n", err, e.err_address);
368 reboot();
369 }
370
371 diag_printf("Flash formatted successfully\n");
372 #endif
373
374 reboot();
375 }
376
377 static int zylinjtag_Jim_Command_format_jffs2(Jim_Interp *interp, int argc,
378 Jim_Obj * const *argv)
379 {
380 if (argc != 1)
381 {
382 return JIM_ERR;
383 }
384
385 format();
386 for (;;)
387 ;
388 }
389
390 static int zylinjtag_Jim_Command_threads(Jim_Interp *interp, int argc,
391 Jim_Obj * const *argv)
392 {
393 cyg_handle_t thread = 0;
394 cyg_uint16 id = 0;
395 Jim_Obj *threads = Jim_NewListObj(interp, NULL, 0);
396
397 /* Loop over the threads, and generate a table row for
398 * each.
399 */
400 while (cyg_thread_get_next(&thread, &id))
401 {
402 Jim_Obj *threadObj = Jim_NewListObj(interp, NULL, 0);
403
404 cyg_thread_info info;
405 char *state_string;
406
407 cyg_thread_get_info(thread, id, &info);
408
409 if (info.name == NULL)
410 info.name = "<no name>";
411
412 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
413 info.name, strlen(info.name)));
414
415 /* Translate the state into a string.
416 */
417 if (info.state == 0)
418 state_string = "RUN";
419 else if (info.state & 0x04)
420 state_string = "SUSP";
421 else
422 switch (info.state & 0x1b)
423 {
424 case 0x01:
425 state_string = "SLEEP";
426 break;
427 case 0x02:
428 state_string = "CNTSLEEP";
429 break;
430 case 0x08:
431 state_string = "CREATE";
432 break;
433 case 0x10:
434 state_string = "EXIT";
435 break;
436 default:
437 state_string = "????";
438 break;
439 }
440
441 Jim_ListAppendElement(interp, threadObj, Jim_NewStringObj(interp,
442 state_string, strlen(state_string)));
443
444 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp, id));
445 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
446 info.set_pri));
447 Jim_ListAppendElement(interp, threadObj, Jim_NewIntObj(interp,
448 info.cur_pri));
449
450 Jim_ListAppendElement(interp, threads, threadObj);
451 }
452 Jim_SetResult(interp, threads);
453
454 return JIM_OK;
455 }
456
457 static int zylinjtag_Jim_Command_log(Jim_Interp *interp, int argc,
458 Jim_Obj * const *argv)
459 {
460 Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
461
462 if (logCount >= logSize)
463 {
464 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer + logCount
465 % logSize, logSize - logCount % logSize);
466 }
467 Jim_AppendString(httpstate.jim_interp, tclOutput, logBuffer, writePtr);
468
469 Jim_SetResult(interp, tclOutput);
470 return JIM_OK;
471 }
472
473 static int zylinjtag_Jim_Command_reboot(Jim_Interp *interp, int argc,
474 Jim_Obj * const *argv)
475 {
476 reboot();
477 return JIM_OK;
478 }
479
480 static void zylinjtag_startNetwork(void)
481 {
482 // Bring TCP/IP up immediately before we're ready to accept commands.
483 //
484 // That is as soon as a PING responds, we're accepting telnet sessions.
485 #if defined(CYGPKG_NET_FREEBSD_STACK)
486 phi_init_all_network_interfaces();
487 #else
488 lwip_init();
489 #endif
490 if (!eth0_up)
491 {
492 diag_printf("Network not up and running\n");
493 exit(-1);
494 }
495
496 /* very first thing we want is a reboot capability */
497 reboot_port();
498
499 #if defined(CYGPKG_NET_FREEBSD_STACK)
500 /*start TFTP*/
501 tftpd_start(69, &fileops);
502 #endif
503
504 cyg_httpd_init_tcl_interpreter();
505
506 Jim_CreateCommand(httpstate.jim_interp, "log", zylinjtag_Jim_Command_log,
507 NULL, NULL);
508 Jim_CreateCommand(httpstate.jim_interp, "zy1000_reboot",
509 zylinjtag_Jim_Command_reboot, NULL, NULL);
510 Jim_CreateCommand(httpstate.jim_interp, "threads",
511 zylinjtag_Jim_Command_threads, NULL, NULL);
512 Jim_CreateCommand(httpstate.jim_interp, "format_jffs2",
513 zylinjtag_Jim_Command_format_jffs2, NULL, NULL);
514
515 cyg_httpd_start();
516
517 webRunning = true;
518
519 diag_printf("Web server running\n");
520
521 int s;
522 struct ifreq ifr;
523 s = socket(AF_INET, SOCK_DGRAM, 0);
524 if (s >= 0)
525 {
526 strcpy(ifr.ifr_name, "eth0");
527 int res;
528 res = ioctl(s, SIOCGIFHWADDR, &ifr);
529 close(s);
530
531 if (res < 0)
532 {
533 diag_printf("Can't obtain MAC address\n");
534 reboot();
535 }
536 }
537
538 sprintf(hwaddr, "%02x:%02x:%02x:%02x:%02x:%02x",
539 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[0],
540 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[1],
541 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[2],
542 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[3],
543 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[4],
544 (int) ((unsigned char *) &ifr.ifr_hwaddr.sa_data)[5]);
545
546 discover_message
547 = alloc_printf("ZY1000 Zylin JTAG debugger MAC %s", hwaddr);
548
549 discover_launch();
550 }
551
552 static void print_exception_handler(cyg_addrword_t data, cyg_code_t exception,
553 cyg_addrword_t info)
554 {
555 writeLog = false;
556 serialLog = true;
557 char *infoStr = "unknown";
558 switch (exception)
559 {
560 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
561 case CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION:
562 infoStr = "undefined instruction";
563 break;
564 case CYGNUM_HAL_VECTOR_SOFTWARE_INTERRUPT:
565 infoStr = "software interrupt";
566 break;
567 case CYGNUM_HAL_VECTOR_ABORT_PREFETCH:
568 infoStr = "abort prefetch";
569 break;
570 case CYGNUM_HAL_VECTOR_ABORT_DATA:
571 infoStr = "abort data";
572 break;
573 #endif
574 default:
575 break;
576 }
577
578 diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
579
580 diag_printf("Dumping log\n---\n");
581 if (logCount >= logSize)
582 {
583 diag_write(logBuffer + logCount % logSize, logSize - logCount % logSize);
584 }
585 diag_write(logBuffer, writePtr);
586
587 diag_printf("---\nLogdump complete.\n");
588 diag_printf("Exception: %08x(%s) %08x\n", exception, infoStr, info);
589 diag_printf("\n---\nRebooting\n");
590 HAL_PLATFORM_RESET();
591
592 }
593
594 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
595 static void setHandler(cyg_code_t exception)
596 {
597 cyg_exception_handler_t *old_handler;
598 cyg_addrword_t old_data;
599
600 cyg_exception_set_handler(exception, print_exception_handler, 0,
601 &old_handler, &old_data);
602 }
603 #endif
604
605 static cyg_thread zylinjtag_uart_thread_object;
606 static cyg_handle_t zylinjtag_uart_thread_handle;
607 static char uart_stack[4096];
608
609 static char forwardBuffer[1024]; // NB! must be smaller than a TCP/IP packet!!!!!
610 static char backwardBuffer[1024];
611
612 void setNoDelay(int session, int flag)
613 {
614 #if 1
615 // This decreases latency dramatically for e.g. GDB load which
616 // does not have a sliding window protocol
617 //
618 // Can cause *lots* of TCP/IP packets to be sent and it would have
619 // to be enabled/disabled on the fly to avoid the CPU being
620 // overloaded...
621 setsockopt(session, /* socket affected */
622 IPPROTO_TCP, /* set option at TCP level */
623 TCP_NODELAY, /* name of option */
624 (char *) &flag, /* the cast is historical
625 cruft */
626 sizeof(int)); /* length of option value */
627 #endif
628 }
629
630 #define TEST_TCPIP() 0
631
632 #if TEST_TCPIP
633 struct
634 {
635 int req;
636 int actual;
637 int req2;
638 int actual2;
639 } tcpipSent[512 * 1024];
640 int cur;
641 #endif
642
643 static void zylinjtag_uart(cyg_addrword_t data)
644 {
645 int so_reuseaddr_option = 1;
646
647 int fd;
648 if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
649 {
650 LOG_ERROR("error creating socket: %s", strerror(errno));
651 exit(-1);
652 }
653
654 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
655 sizeof(int));
656
657 struct sockaddr_in sin;
658 unsigned int address_size;
659 address_size = sizeof(sin);
660 memset(&sin, 0, sizeof(sin));
661 sin.sin_family = AF_INET;
662 sin.sin_addr.s_addr = INADDR_ANY;
663 sin.sin_port = htons(5555);
664
665 if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
666 {
667 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
668 exit(-1);
669 }
670
671 if (listen(fd, 1) == -1)
672 {
673 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
674 exit(-1);
675 }
676 // socket_nonblock(fd);
677
678
679 for (;;)
680 {
681 int session = accept(fd, (struct sockaddr *) &sin, &address_size);
682 if (session < 0)
683 {
684 continue;
685 }
686
687 setNoDelay(session, 1);
688 int oldopts = fcntl(session, F_GETFL, 0);
689 fcntl(session, F_SETFL, oldopts | O_NONBLOCK); //
690
691 int serHandle = open(ZY1000_SER_DEV, O_RDWR | O_NONBLOCK);
692 if (serHandle < 0)
693 {
694 close(session);
695 continue;
696 }
697
698 #ifdef CYGPKG_PROFILE_GPROF
699 start_profile();
700 #endif
701 size_t actual = 0;
702 size_t actual2 = 0;
703 size_t pos, pos2;
704 pos = 0;
705 pos2 = 0;
706 #if TEST_TCPIP
707 cur = 0;
708 #endif
709 for (;;)
710 {
711 fd_set write_fds;
712 fd_set read_fds;
713 FD_ZERO(&write_fds);
714 FD_ZERO(&read_fds);
715 int fd_max = -1;
716 FD_SET(session, &read_fds);
717 fd_max = session;
718 FD_SET(serHandle, &read_fds);
719 if (serHandle > fd_max)
720 {
721 fd_max = serHandle;
722 }
723 /* Wait... */
724
725 cyg_thread_delay(5); // 50ms fixed delay to wait for data to be sent/received
726 if ((actual == 0) && (actual2 == 0))
727 {
728 int retval = select(fd_max + 1, &read_fds, NULL, NULL, NULL);
729 if (retval <= 0)
730 {
731 break;
732 }
733 }
734
735 if (actual2 <= 0)
736 {
737 memset(backwardBuffer, 's', sizeof(backwardBuffer));
738 int t;
739 t = read(serHandle, backwardBuffer,
740 sizeof(backwardBuffer));
741 actual2 = t;
742 if (t < 0)
743 {
744 if (errno != EAGAIN)
745 {
746 goto closeSession;
747 }
748 actual2 = 0;
749 }
750 pos2 = 0;
751 }
752
753 size_t y = 0;
754 if (actual2 > 0)
755 {
756 int written = write(session, backwardBuffer + pos2, actual2);
757 if (written <= 0)
758 goto closeSession;
759 actual2 -= written;
760 pos2 += written;
761 y = written;
762 }
763
764 if (FD_ISSET(session, &read_fds)
765 && (sizeof(forwardBuffer) > actual))
766 {
767 // NB! Here it is important that we empty the TCP/IP read buffer
768 // to make transmission tick right
769 memmove(forwardBuffer, forwardBuffer + pos, actual);
770 pos = 0;
771 int t;
772 // this will block if there is no data at all
773 t = read_socket(session, forwardBuffer + actual,
774 sizeof(forwardBuffer) - actual);
775 if (t <= 0)
776 {
777 goto closeSession;
778 }
779 actual += t;
780 }
781
782 int y2 = 0;
783 if (actual > 0)
784 {
785 /* Do not put things into the serial buffer if it has something to send
786 * as that can cause a single byte to be sent at the time.
787 *
788 *
789 */
790 int written = write(serHandle, forwardBuffer + pos, actual);
791 if (written < 0)
792 {
793 if (errno != EAGAIN)
794 {
795 goto closeSession;
796 }
797 // The serial buffer is full
798 written = 0;
799 }
800 else
801 {
802 actual -= written;
803 pos += written;
804 }
805 y2 = written;
806 }
807 #if TEST_TCPIP
808 if (cur < 1024)
809 {
810 tcpipSent[cur].req = x;
811 tcpipSent[cur].actual = y;
812 tcpipSent[cur].req2 = x2;
813 tcpipSent[cur].actual2 = y2;
814 cur++;
815 }
816 #endif
817 }
818 closeSession: close(session);
819 close(serHandle);
820
821 #if TEST_TCPIP
822 int i;
823 for (i = 0; i < 1024; i++)
824 {
825 diag_printf("%d %d %d %d\n", tcpipSent[i].req, tcpipSent[i].actual,
826 tcpipSent[i].req2, tcpipSent[i].actual2);
827
828 }
829 #endif
830 }
831 close(fd);
832
833 }
834
835 void startUart(void)
836 {
837 cyg_thread_create(1, zylinjtag_uart, (cyg_addrword_t) 0, "uart thread",
838 (void *) uart_stack, sizeof(uart_stack),
839 &zylinjtag_uart_thread_handle, &zylinjtag_uart_thread_object);
840 cyg_thread_set_priority(zylinjtag_uart_thread_handle, 1); // low priority as it sits in a busy loop
841 cyg_thread_resume(zylinjtag_uart_thread_handle);
842 }
843
844 static int zylinjtag_Jim_Command_uart(Jim_Interp *interp, int argc,
845 Jim_Obj * const *argv)
846 {
847 static int current_baud = 38400;
848 if (argc == 1)
849 {
850 command_print(cmd_ctx, "%d", current_baud);
851 return JIM_OK;
852 }
853 else if (argc != 2)
854 {
855 return JIM_ERR;
856 }
857
858 long new_baudrate;
859 if (Jim_GetLong(interp, argv[1], &new_baudrate) != JIM_OK)
860 return JIM_ERR;
861
862 current_baud = new_baudrate;
863
864 int baud;
865 switch (current_baud)
866 {
867 case 9600:
868 baud = CYGNUM_SERIAL_BAUD_9600;
869 break;
870 case 19200:
871 baud = CYGNUM_SERIAL_BAUD_19200;
872 break;
873 case 38400:
874 baud = CYGNUM_SERIAL_BAUD_38400;
875 break;
876 case 57600:
877 baud = CYGNUM_SERIAL_BAUD_57600;
878 break;
879 case 115200:
880 baud = CYGNUM_SERIAL_BAUD_115200;
881 break;
882 case 230400:
883 baud = CYGNUM_SERIAL_BAUD_230400;
884 break;
885 default:
886 command_print(cmd_ctx, "unsupported baudrate");
887 return ERROR_INVALID_ARGUMENTS;
888 }
889
890 cyg_serial_info_t buf;
891 cyg_uint32 len = 1;
892 //get existing serial configuration
893 len = sizeof(cyg_serial_info_t);
894 int err;
895 cyg_io_handle_t serial_handle;
896
897 err = cyg_io_lookup(ZY1000_SER_DEV, &serial_handle);
898 if (err != ENOERR)
899 {
900 LOG_ERROR("Could not open serial port\n");
901 return JIM_ERR;
902 }
903
904 err = cyg_io_get_config(serial_handle,
905 CYG_IO_GET_CONFIG_SERIAL_OUTPUT_DRAIN, &buf, &len);
906 err = cyg_io_get_config(serial_handle, CYG_IO_GET_CONFIG_SERIAL_INFO, &buf,
907 &len);
908 if (err != ENOERR)
909 {
910 LOG_ERROR("Failed to get serial port settings %d", err);
911 return JIM_ERR;
912 }
913 buf.baud = baud;
914
915 err = cyg_io_set_config(serial_handle, CYG_IO_SET_CONFIG_SERIAL_INFO, &buf,
916 &len);
917 if (err != ENOERR)
918 {
919 LOG_ERROR("Failed to set serial port settings %d", err);
920 return JIM_ERR;
921 }
922
923 return JIM_OK;
924 }
925
926 bool logAllToSerial = false;
927
928
929 int boolParam(char *var);
930
931
932 static const char *zylin_config_dir="/config/settings";
933
934 static int add_default_dirs(void)
935 {
936 add_script_search_dir(zylin_config_dir);
937 add_script_search_dir("/rom/lib/openocd");
938 add_script_search_dir("/rom");
939 return ERROR_OK;
940 }
941
942 int main(int argc, char *argv[])
943 {
944 /* ramblockdevice will be the same address every time. The deflate app uses a buffer 16mBytes out, so we
945 * need to allocate towards the end of the heap. */
946
947 #ifdef CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION
948 setHandler(CYGNUM_HAL_VECTOR_UNDEF_INSTRUCTION);
949 setHandler(CYGNUM_HAL_VECTOR_ABORT_PREFETCH);
950 setHandler(CYGNUM_HAL_VECTOR_ABORT_DATA);
951 #endif
952
953 int err;
954
955 atexit(keep_webserver);
956
957 diag_init_putc(_zylinjtag_diag_write_char);
958 // We want this in the log.
959 #ifdef CYGPKG_HAL_NIOS2
960 diag_printf("Zylin ZY1000 PCB revc.\n");
961 #else
962 diag_printf("Zylin ZY1000 PCB revb.\n");
963 #endif
964
965 err = mount("", "/ram", "ramfs");
966 if (err < 0)
967 {
968 diag_printf("unable to mount ramfs\n");
969 }
970 chdir("/ram");
971
972 char address[16];
973 sprintf(address, "%p", &filedata[0]);
974 err = mount(address, "/rom", "romfs");
975 if (err < 0)
976 {
977 diag_printf("unable to mount /rom\n");
978 }
979
980 err = mount("", "/log", "logfs");
981 if (err < 0)
982 {
983 diag_printf("unable to mount logfs\n");
984 }
985
986 err = mount("", "/tftp", "tftpfs");
987 if (err < 0)
988 {
989 diag_printf("unable to mount logfs\n");
990 }
991
992 log = fopen("/log/log", "w");
993 if (log == NULL)
994 {
995 diag_printf("Could not open log file /ram/log\n");
996 exit(-1);
997 }
998
999
1000 copydir("/rom", "/ram/cgi");
1001
1002 #ifdef CYGPKG_HAL_NIOS2
1003 cyg_flashaddr_t err_address;
1004 #define UNCACHED_EXT_FLASH_BASE (0x80000000 + EXT_FLASH_BASE)
1005 /* The revc flash is locked upon reset, unlock it */
1006 #ifdef CYGHWR_IO_FLASH_BLOCK_LOCKING
1007 if ((err = flash_unlock((void *) UNCACHED_EXT_FLASH_BASE, EXT_FLASH_SPAN,
1008 (void **) &err_address)) != 0)
1009 {
1010 diag_printf("Error: could not unlock flash\n");
1011 }
1012 #endif
1013 #endif
1014
1015
1016 err = mount("/dev/flash1", "/config", "jffs2");
1017 if (err < 0)
1018 {
1019 diag_printf("unable to mount jffs2, falling back to ram disk..\n");
1020 err = mount("", "/config", "ramfs");
1021 if (err < 0)
1022 {
1023 diag_printf("unable to mount /config as ramdisk.\n");
1024 reboot();
1025 }
1026 }
1027 else
1028 {
1029 /* are we using a ram disk instead of a flash disk? This is used
1030 * for ZY1000 live demo...
1031 *
1032 * copy over flash disk to ram block device
1033 */
1034 if (boolParam("ramdisk"))
1035 {
1036 diag_printf("Unmounting /config from flash and using ram instead\n");
1037 err = umount("/config");
1038 if (err < 0)
1039 {
1040 diag_printf("unable to unmount jffs\n");
1041 reboot();
1042 }
1043
1044 err = mount("/dev/flash1", "/config2", "jffs2");
1045 if (err < 0)
1046 {
1047 diag_printf("unable to mount jffs\n");
1048 reboot();
1049 }
1050
1051 err = mount("", "/config", "ramfs");
1052 if (err < 0)
1053 {
1054 diag_printf("unable to mount ram block device\n");
1055 reboot();
1056 }
1057
1058 // copydir("/config2", "/config");
1059 copyfile("/config2/ip", "/config/ip");
1060 copydir("/config2/settings", "/config/settings");
1061
1062 umount("/config2");
1063 }
1064 }
1065
1066 mkdir(zylin_config_dir, 0777);
1067 char *dirname = alloc_printf("%s/target", zylin_config_dir);
1068 mkdir(dirname, 0777);
1069 free(dirname);
1070 dirname = alloc_printf("%s/board", zylin_config_dir);
1071 mkdir(dirname, 0777);
1072 free(dirname);
1073 dirname = alloc_printf("%s/event", zylin_config_dir);
1074 mkdir(dirname, 0777);
1075 free(dirname);
1076
1077 logAllToSerial = boolParam("logserial");
1078
1079 // We need the network & web server in case there is something wrong with
1080 // the config files that invoke exit()
1081 zylinjtag_startNetwork();
1082
1083 /* we're going to access the jim interpreter from here on... */
1084 openocd_sleep_postlude();
1085 startUart();
1086
1087 add_default_dirs();
1088
1089 /* initialize commandline interface */
1090 struct command_context * cmd_ctx;
1091 struct command_context *setup_command_handler(Jim_Interp *interp);
1092 cmd_ctx = setup_command_handler(httpstate.jim_interp);
1093 command_set_output_handler(cmd_ctx, configuration_output_handler, NULL);
1094 command_context_mode(cmd_ctx, COMMAND_CONFIG);
1095
1096 if (ioutil_init(cmd_ctx) != ERROR_OK)
1097 return EXIT_FAILURE;
1098
1099 #ifdef CYGPKG_PROFILE_GPROF
1100 Jim_CreateCommand(httpstate.jim_interp, "zy1000_profile", zylinjtag_Jim_Command_profile,
1101 NULL, NULL);
1102 #endif
1103
1104 Jim_CreateCommand(httpstate.jim_interp, "zy1000_uart", zylinjtag_Jim_Command_uart, NULL, NULL);
1105
1106
1107 log_init();
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 int ret;
1125 ret = server_init(cmd_ctx);
1126 if (ERROR_OK != ret)
1127 return EXIT_FAILURE;
1128
1129 /* we MUST always run the init command as it will launch telnet sessions */
1130 command_run_line(cmd_ctx, "init");
1131
1132 // FIX!!! Yuk!
1133 // diag_printf() is really invoked from many more places than we trust it
1134 // not to cause instabilities(e.g. invoking fputc() from an interrupt is *BAD*).
1135 //
1136 // Disabling it here is safe and gives us enough logged debug output for now. Crossing
1137 // fingers that it doesn't cause any crashes.
1138 diag_printf("Init complete, GDB & telnet servers launched.\n");
1139 command_set_output_handler(cmd_ctx,
1140 zy1000_configuration_output_handler_log, NULL);
1141 if (!logAllToSerial)
1142 {
1143 serialLog = false;
1144 }
1145
1146 /* handle network connections */
1147 server_loop(cmd_ctx);
1148 openocd_sleep_prelude();
1149
1150 /* shut server down */
1151 server_quit();
1152
1153 /* free commandline interface */
1154 command_done(cmd_ctx);
1155 umount("/config");
1156
1157 exit(0);
1158 for (;;)
1159 ;
1160 }
1161
1162 cyg_int32 cyg_httpd_exec_cgi_tcl(char *file_name);
1163 cyg_int32 homeForm(CYG_HTTPD_STATE *p)
1164 {
1165 cyg_httpd_exec_cgi_tcl("/ram/cgi/index.tcl");
1166 return 0;
1167 }
1168
1169 CYG_HTTPD_HANDLER_TABLE_ENTRY(root_label, "/", homeForm);
1170
1171 CYG_HTTPD_MIME_TABLE_ENTRY(text_mime_label, "text", "text/plain");
1172 CYG_HTTPD_MIME_TABLE_ENTRY(bin_mime_label, "bin", "application/octet-stream");
1173
1174 #include <pkgconf/system.h>
1175 #include <pkgconf/hal.h>
1176 #include <pkgconf/kernel.h>
1177 #include <pkgconf/io_fileio.h>
1178 #include <pkgconf/fs_rom.h>
1179
1180 #include <cyg/kernel/ktypes.h> // base kernel types
1181 #include <cyg/infra/cyg_trac.h> // tracing macros
1182 #include <cyg/infra/cyg_ass.h> // assertion macros
1183 #include <cyg/fileio/fileio.h>
1184 #include <cyg/kernel/kapi.h>
1185 #include <cyg/infra/diag.h>
1186
1187 //==========================================================================
1188 // Eventually we want to eXecute In Place from the ROM in a protected
1189 // environment, so we'll need executables to be aligned to a boundary
1190 // suitable for MMU protection. A suitable boundary would be the 4k
1191 // boundary in all the CPU architectures I am currently aware of.
1192
1193 // Forward definitions
1194
1195 // Filesystem operations
1196 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1197 static int tftpfs_umount(cyg_mtab_entry *mte);
1198 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1199 int mode, cyg_file *fte);
1200 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1201 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1202
1203 // File operations
1204 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1205 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp);
1206 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence);
1207
1208 //==========================================================================
1209 // Filesystem table entries
1210
1211 // -------------------------------------------------------------------------
1212 // Fstab entry.
1213 // This defines the entry in the filesystem table.
1214 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1215 // we should never block in any filesystem operations.
1216 #if 1
1217 FSTAB_ENTRY(tftpfs_fste, "tftpfs", 0,
1218 CYG_SYNCMODE_NONE,
1219 tftpfs_mount,
1220 tftpfs_umount,
1221 tftpfs_open,
1222 (cyg_fsop_unlink *)cyg_fileio_erofs,
1223 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1224 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1225 (cyg_fsop_rename *)cyg_fileio_erofs,
1226 (cyg_fsop_link *)cyg_fileio_erofs,
1227 (cyg_fsop_opendir *)cyg_fileio_erofs,
1228 (cyg_fsop_chdir *)cyg_fileio_erofs,
1229 (cyg_fsop_stat *)cyg_fileio_erofs,
1230 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1231 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1232 #endif
1233
1234 // -------------------------------------------------------------------------
1235 // mtab entry.
1236 // This defines a single ROMFS loaded into ROM at the configured address
1237 //
1238 // MTAB_ENTRY(rom_mte, // structure name
1239 // "/rom", // mount point
1240 // "romfs", // FIlesystem type
1241 // "", // hardware device
1242 // (CYG_ADDRWORD) CYGNUM_FS_ROM_BASE_ADDRESS // Address in ROM
1243 //);
1244
1245
1246 // -------------------------------------------------------------------------
1247 // File operations.
1248 // This set of file operations are used for normal open files.
1249
1250 static cyg_fileops tftpfs_fileops =
1251 { tftpfs_fo_read, tftpfs_fo_write, tftpfs_fo_lseek,
1252 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1253 tftpfs_fo_fsync, tftpfs_fo_close,
1254 (cyg_fileop_fstat *) cyg_fileio_erofs,
1255 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1256 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1257
1258 // -------------------------------------------------------------------------
1259 // tftpfs_mount()
1260 // Process a mount request. This mainly finds root for the
1261 // filesystem.
1262
1263 static int tftpfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1264 {
1265 return ENOERR;
1266 }
1267
1268 static int tftpfs_umount(cyg_mtab_entry *mte)
1269 {
1270 return ENOERR;
1271 }
1272
1273 struct Tftp
1274 {
1275 int write;
1276 int readFile;
1277 cyg_uint8 *mem;
1278 int actual;
1279 char *server;
1280 char *file;
1281 };
1282
1283 static void freeTftp(struct Tftp *t)
1284 {
1285 if (t == NULL)
1286 return;
1287 if (t->mem)
1288 free(t->mem);
1289 if (t->server)
1290 free(t->server);
1291 if (t->file)
1292 free(t->file);
1293 free(t);
1294 }
1295
1296 static const int tftpMaxSize = 8192 * 1024;
1297 static int tftpfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1298 int mode, cyg_file *file)
1299 {
1300 struct Tftp *tftp;
1301 tftp = malloc(sizeof(struct Tftp));
1302 if (tftp == NULL)
1303 return EMFILE;
1304 memset(tftp, 0, sizeof(struct Tftp));
1305
1306 file->f_flag |= mode & CYG_FILE_MODE_MASK;
1307 file->f_type = CYG_FILE_TYPE_FILE;
1308 file->f_ops = &tftpfs_fileops;
1309 file->f_offset = 0;
1310 file->f_data = 0;
1311 file->f_xops = 0;
1312
1313 tftp->mem = malloc(tftpMaxSize);
1314 if (tftp->mem == NULL)
1315 {
1316 freeTftp(tftp);
1317 return EMFILE;
1318 }
1319
1320 char *server = strchr(name, '/');
1321 if (server == NULL)
1322 {
1323 freeTftp(tftp);
1324 return EMFILE;
1325 }
1326
1327 tftp->server = malloc(server - name + 1);
1328 if (tftp->server == NULL)
1329 {
1330 freeTftp(tftp);
1331 return EMFILE;
1332 }
1333 strncpy(tftp->server, name, server - name);
1334 tftp->server[server - name] = 0;
1335
1336 tftp->file = strdup(server + 1);
1337 if (tftp->file == NULL)
1338 {
1339 freeTftp(tftp);
1340 return EMFILE;
1341 }
1342
1343 file->f_data = (CYG_ADDRWORD) tftp;
1344
1345 return ENOERR;
1346 }
1347
1348 static int fetchTftp(struct Tftp *tftp)
1349 {
1350 if (!tftp->readFile)
1351 {
1352 int err;
1353 tftp->actual = tftp_client_get(tftp->file, tftp->server, 0, tftp->mem,
1354 tftpMaxSize, TFTP_OCTET, &err);
1355
1356 if (tftp->actual < 0)
1357 {
1358 return EMFILE;
1359 }
1360 tftp->readFile = 1;
1361 }
1362 return ENOERR;
1363 }
1364
1365 // -------------------------------------------------------------------------
1366 // tftpfs_fo_write()
1367 // Read data from file.
1368
1369 static int tftpfs_fo_read(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1370 {
1371 struct Tftp *tftp = (struct Tftp *) fp->f_data;
1372
1373 if (fetchTftp(tftp) != ENOERR)
1374 return EMFILE;
1375
1376 int i;
1377 off_t pos = fp->f_offset;
1378 int resid = 0;
1379 for (i = 0; i < uio->uio_iovcnt; i++)
1380 {
1381 cyg_iovec *iov = &uio->uio_iov[i];
1382 char *buf = (char *) iov->iov_base;
1383 off_t len = iov->iov_len;
1384
1385 if (len + pos > tftp->actual)
1386 {
1387 len = tftp->actual - pos;
1388 }
1389 resid += iov->iov_len - len;
1390
1391 memcpy(buf, tftp->mem + pos, len);
1392 pos += len;
1393
1394 }
1395 uio->uio_resid = resid;
1396 fp->f_offset = pos;
1397
1398 return ENOERR;
1399 }
1400
1401 static int tftpfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1402 {
1403 struct Tftp *tftp = (struct Tftp *) fp->f_data;
1404
1405 int i;
1406 off_t pos = fp->f_offset;
1407 int resid = 0;
1408 for (i = 0; i < uio->uio_iovcnt; i++)
1409 {
1410 cyg_iovec *iov = &uio->uio_iov[i];
1411 char *buf = (char *) iov->iov_base;
1412 off_t len = iov->iov_len;
1413
1414 if (len + pos > tftpMaxSize)
1415 {
1416 len = tftpMaxSize - pos;
1417 }
1418 resid += iov->iov_len - len;
1419
1420 memcpy(tftp->mem + pos, buf, len);
1421 pos += len;
1422
1423 }
1424 uio->uio_resid = resid;
1425 fp->f_offset = pos;
1426
1427 tftp->write = 1;
1428
1429 return ENOERR;
1430 }
1431
1432 static int tftpfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1433 {
1434 int error = ENOERR;
1435 return error;
1436 }
1437
1438 // -------------------------------------------------------------------------
1439 // romfs_fo_close()
1440 // Close a file. We just clear out the data pointer.
1441
1442 static int tftpfs_fo_close(struct CYG_FILE_TAG *fp)
1443 {
1444 struct Tftp *tftp = (struct Tftp *) fp->f_data;
1445 int error = ENOERR;
1446
1447 if (tftp->write)
1448 {
1449 tftp_client_put(tftp->file, tftp->server, 0, tftp->mem, fp->f_offset,
1450 TFTP_OCTET, &error);
1451 }
1452
1453 freeTftp(tftp);
1454 fp->f_data = 0;
1455 return error;
1456 }
1457
1458 // -------------------------------------------------------------------------
1459 // romfs_fo_lseek()
1460 // Seek to a new file position.
1461
1462 static int tftpfs_fo_lseek(struct CYG_FILE_TAG *fp, off_t *apos, int whence)
1463 {
1464 struct Tftp *tftp = (struct Tftp *) fp->f_data;
1465 off_t pos = *apos;
1466
1467 if (fetchTftp(tftp) != ENOERR)
1468 return EMFILE;
1469
1470 switch (whence)
1471 {
1472 case SEEK_SET:
1473 // Pos is already where we want to be.
1474 break;
1475
1476 case SEEK_CUR:
1477 // Add pos to current offset.
1478 pos += fp->f_offset;
1479 break;
1480
1481 case SEEK_END:
1482 // Add pos to file size.
1483 pos += tftp->actual;
1484 break;
1485
1486 default:
1487 return EINVAL;
1488 }
1489
1490 // Check that pos is still within current file size, or at the
1491 // very end.
1492 if (pos < 0 || pos > tftp->actual)
1493 return EINVAL;
1494
1495 // All OK, set fp offset and return new position.
1496 *apos = fp->f_offset = pos;
1497
1498 return ENOERR;
1499 }
1500
1501 void usleep(int us)
1502 {
1503 if (us > 10000)
1504 cyg_thread_delay(us / 10000 + 1);
1505 else
1506 HAL_DELAY_US(us);
1507 }
1508
1509 // Chunked version.
1510 cyg_int32 show_log_entry(CYG_HTTPD_STATE *phttpstate)
1511 {
1512 cyg_httpd_start_chunked("text");
1513 if (logCount >= logSize)
1514 {
1515 cyg_httpd_write_chunked(logBuffer + logCount % logSize, logSize
1516 - logCount % logSize);
1517 }
1518 cyg_httpd_write_chunked(logBuffer, writePtr);
1519 cyg_httpd_end_chunked();
1520 return -1;
1521 }
1522
1523 CYG_HTTPD_HANDLER_TABLE_ENTRY(show_log, "/ram/log", show_log_entry);
1524
1525 // Filesystem operations
1526 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte);
1527 static int logfs_umount(cyg_mtab_entry *mte);
1528 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1529 int mode, cyg_file *fte);
1530 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio);
1531
1532 // File operations
1533 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode);
1534 static int logfs_fo_close(struct CYG_FILE_TAG *fp);
1535
1536 #include <cyg/io/devtab.h>
1537
1538 //==========================================================================
1539 // Filesystem table entries
1540
1541 // -------------------------------------------------------------------------
1542 // Fstab entry.
1543 // This defines the entry in the filesystem table.
1544 // For simplicity we use _FILESYSTEM synchronization for all accesses since
1545 // we should never block in any filesystem operations.
1546 FSTAB_ENTRY(logfs_fste, "logfs", 0,
1547 CYG_SYNCMODE_FILE_FILESYSTEM | CYG_SYNCMODE_IO_FILESYSTEM,
1548 logfs_mount,
1549 logfs_umount,
1550 logfs_open,
1551 (cyg_fsop_unlink *)cyg_fileio_erofs,
1552 (cyg_fsop_mkdir *)cyg_fileio_erofs,
1553 (cyg_fsop_rmdir *)cyg_fileio_erofs,
1554 (cyg_fsop_rename *)cyg_fileio_erofs,
1555 (cyg_fsop_link *)cyg_fileio_erofs,
1556 (cyg_fsop_opendir *)cyg_fileio_erofs,
1557 (cyg_fsop_chdir *)cyg_fileio_erofs,
1558 (cyg_fsop_stat *)cyg_fileio_erofs,
1559 (cyg_fsop_getinfo *)cyg_fileio_erofs,
1560 (cyg_fsop_setinfo *)cyg_fileio_erofs);
1561
1562 // -------------------------------------------------------------------------
1563 // File operations.
1564 // This set of file operations are used for normal open files.
1565
1566 static cyg_fileops logfs_fileops =
1567 { (cyg_fileop_read *) cyg_fileio_erofs, (cyg_fileop_write *) logfs_fo_write,
1568 (cyg_fileop_lseek *) cyg_fileio_erofs,
1569 (cyg_fileop_ioctl *) cyg_fileio_erofs, cyg_fileio_seltrue,
1570 logfs_fo_fsync, logfs_fo_close, (cyg_fileop_fstat *) cyg_fileio_erofs,
1571 (cyg_fileop_getinfo *) cyg_fileio_erofs,
1572 (cyg_fileop_setinfo *) cyg_fileio_erofs, };
1573
1574 // -------------------------------------------------------------------------
1575 // logfs_mount()
1576 // Process a mount request. This mainly finds root for the
1577 // filesystem.
1578
1579 static int logfs_mount(cyg_fstab_entry *fste, cyg_mtab_entry *mte)
1580 {
1581 return ENOERR;
1582 }
1583
1584 static int logfs_umount(cyg_mtab_entry *mte)
1585 {
1586 return ENOERR;
1587 }
1588
1589 static int logfs_open(cyg_mtab_entry *mte, cyg_dir dir, const char *name,
1590 int mode, cyg_file *file)
1591 {
1592 file->f_flag |= mode & CYG_FILE_MODE_MASK;
1593 file->f_type = CYG_FILE_TYPE_FILE;
1594 file->f_ops = &logfs_fileops;
1595 file->f_offset = 0;
1596 file->f_data = 0;
1597 file->f_xops = 0;
1598 return ENOERR;
1599 }
1600
1601 // -------------------------------------------------------------------------
1602 // logfs_fo_write()
1603 // Write data to file.
1604
1605 static int logfs_fo_write(struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio)
1606 {
1607 int i;
1608 for (i = 0; i < uio->uio_iovcnt; i++)
1609 {
1610 cyg_iovec *iov = &uio->uio_iov[i];
1611 char *buf = (char *) iov->iov_base;
1612 off_t len = iov->iov_len;
1613
1614 diag_write(buf, len);
1615 }
1616 uio->uio_resid = 0;
1617
1618 return ENOERR;
1619 }
1620 static int logfs_fo_fsync(struct CYG_FILE_TAG *fp, int mode)
1621 {
1622 return ENOERR;
1623 }
1624
1625 // -------------------------------------------------------------------------
1626 // romfs_fo_close()
1627 // Close a file. We just clear out the data pointer.
1628
1629 static int logfs_fo_close(struct CYG_FILE_TAG *fp)
1630 {
1631 return ENOERR;
1632 }
1633
1634 int loadFile(const char *fileName, void **data, int *len);
1635
1636 /* boolean parameter stored on config */
1637 int boolParam(char *var)
1638 {
1639 bool result = false;
1640 char *name = alloc_printf("%s/%s", zylin_config_dir, var);
1641 if (name == NULL)
1642 return result;
1643
1644 void *data;
1645 int len;
1646 if (loadFile(name, &data, &len) == ERROR_OK)
1647 {
1648 if (len > 1)
1649 len = 1;
1650 result = strncmp((char *) data, "1", len) == 0;
1651 free(data);
1652 }
1653 free(name);
1654 return result;
1655 }
1656