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wdenk8bde7f72003-06-27 21:31:46 +00001/*
wdenk232c1502004-03-12 00:14:09 +00002 * (C) Copyright 2000-2004
wdenk8bde7f72003-06-27 21:31:46 +00003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * Serial up- and download support
26 */
27#include <common.h>
28#include <command.h>
wdenk8bde7f72003-06-27 21:31:46 +000029#include <s_record.h>
30#include <net.h>
wdenk27b207f2003-07-24 23:38:38 +000031#include <exports.h>
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +020032#include <xyzModem.h>
wdenk8bde7f72003-06-27 21:31:46 +000033
Wolfgang Denkd87080b2006-03-31 18:32:53 +020034DECLARE_GLOBAL_DATA_PTR;
wdenk8bde7f72003-06-27 21:31:46 +000035
Jon Loeligerc76fe472007-07-08 18:02:23 -050036#if defined(CONFIG_CMD_LOADB)
Wolfgang Denk8546e232006-05-02 00:11:25 +020037static ulong load_serial_ymodem (ulong offset);
38#endif
39
Jon Loeligerc76fe472007-07-08 18:02:23 -050040#if defined(CONFIG_CMD_LOADS)
Ricardo Ribalda Delgado2b22d602008-07-30 12:39:29 +020041static ulong load_serial (long offset);
wdenk8bde7f72003-06-27 21:31:46 +000042static int read_record (char *buf, ulong len);
Jon Loeligerc76fe472007-07-08 18:02:23 -050043# if defined(CONFIG_CMD_SAVES)
wdenk8bde7f72003-06-27 21:31:46 +000044static int save_serial (ulong offset, ulong size);
45static int write_record (char *buf);
Jon Loeliger90253172007-07-10 11:02:44 -050046#endif
wdenk8bde7f72003-06-27 21:31:46 +000047
48static int do_echo = 1;
Jon Loeliger90253172007-07-10 11:02:44 -050049#endif
wdenk8bde7f72003-06-27 21:31:46 +000050
51/* -------------------------------------------------------------------- */
52
Jon Loeligerc76fe472007-07-08 18:02:23 -050053#if defined(CONFIG_CMD_LOADS)
wdenk8bde7f72003-06-27 21:31:46 +000054int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
55{
Ricardo Ribalda Delgado2b22d602008-07-30 12:39:29 +020056 long offset = 0;
wdenk8bde7f72003-06-27 21:31:46 +000057 ulong addr;
58 int i;
59 char *env_echo;
60 int rcode = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020061#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
wdenk8bde7f72003-06-27 21:31:46 +000062 int load_baudrate, current_baudrate;
63
64 load_baudrate = current_baudrate = gd->baudrate;
65#endif
66
67 if (((env_echo = getenv("loads_echo")) != NULL) && (*env_echo == '1')) {
68 do_echo = 1;
69 } else {
70 do_echo = 0;
71 }
72
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020073#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
wdenk8bde7f72003-06-27 21:31:46 +000074 if (argc >= 2) {
Ricardo Ribalda Delgado2b22d602008-07-30 12:39:29 +020075 offset = simple_strtol(argv[1], NULL, 16);
wdenk8bde7f72003-06-27 21:31:46 +000076 }
77 if (argc == 3) {
78 load_baudrate = (int)simple_strtoul(argv[2], NULL, 10);
79
80 /* default to current baudrate */
81 if (load_baudrate == 0)
82 load_baudrate = current_baudrate;
83 }
84 if (load_baudrate != current_baudrate) {
85 printf ("## Switch baudrate to %d bps and press ENTER ...\n",
86 load_baudrate);
87 udelay(50000);
88 gd->baudrate = load_baudrate;
89 serial_setbrg ();
90 udelay(50000);
91 for (;;) {
92 if (getc() == '\r')
93 break;
94 }
95 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020096#else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
wdenk8bde7f72003-06-27 21:31:46 +000097 if (argc == 2) {
Ricardo Ribalda Delgado2b22d602008-07-30 12:39:29 +020098 offset = simple_strtol(argv[1], NULL, 16);
wdenk8bde7f72003-06-27 21:31:46 +000099 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200100#endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
wdenk8bde7f72003-06-27 21:31:46 +0000101
102 printf ("## Ready for S-Record download ...\n");
103
104 addr = load_serial (offset);
105
106 /*
107 * Gather any trailing characters (for instance, the ^D which
108 * is sent by 'cu' after sending a file), and give the
109 * box some time (100 * 1 ms)
110 */
111 for (i=0; i<100; ++i) {
wdenk232c1502004-03-12 00:14:09 +0000112 if (tstc()) {
113 (void) getc();
wdenk8bde7f72003-06-27 21:31:46 +0000114 }
115 udelay(1000);
116 }
117
118 if (addr == ~0) {
119 printf ("## S-Record download aborted\n");
120 rcode = 1;
121 } else {
122 printf ("## Start Addr = 0x%08lX\n", addr);
123 load_addr = addr;
124 }
125
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200126#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
wdenk8bde7f72003-06-27 21:31:46 +0000127 if (load_baudrate != current_baudrate) {
128 printf ("## Switch baudrate to %d bps and press ESC ...\n",
129 current_baudrate);
130 udelay (50000);
131 gd->baudrate = current_baudrate;
132 serial_setbrg ();
133 udelay (50000);
134 for (;;) {
135 if (getc() == 0x1B) /* ESC */
136 break;
137 }
138 }
139#endif
140 return rcode;
141}
142
143static ulong
Ricardo Ribalda Delgado2b22d602008-07-30 12:39:29 +0200144load_serial (long offset)
wdenk8bde7f72003-06-27 21:31:46 +0000145{
146 char record[SREC_MAXRECLEN + 1]; /* buffer for one S-Record */
147 char binbuf[SREC_MAXBINLEN]; /* buffer for binary data */
148 int binlen; /* no. of data bytes in S-Rec. */
149 int type; /* return code for record type */
150 ulong addr; /* load address from S-Record */
151 ulong size; /* number of bytes transferred */
152 char buf[32];
153 ulong store_addr;
154 ulong start_addr = ~0;
155 ulong end_addr = 0;
156 int line_count = 0;
157
158 while (read_record(record, SREC_MAXRECLEN + 1) >= 0) {
159 type = srec_decode (record, &binlen, &addr, binbuf);
160
161 if (type < 0) {
162 return (~0); /* Invalid S-Record */
163 }
164
165 switch (type) {
166 case SREC_DATA2:
167 case SREC_DATA3:
168 case SREC_DATA4:
169 store_addr = addr + offset;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200170#ifndef CONFIG_SYS_NO_FLASH
wdenk8bde7f72003-06-27 21:31:46 +0000171 if (addr2info(store_addr)) {
172 int rc;
173
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200174 rc = flash_write((char *)binbuf,store_addr,binlen);
wdenk8bde7f72003-06-27 21:31:46 +0000175 if (rc != 0) {
176 flash_perror (rc);
177 return (~0);
178 }
179 } else
180#endif
181 {
182 memcpy ((char *)(store_addr), binbuf, binlen);
183 }
184 if ((store_addr) < start_addr)
185 start_addr = store_addr;
186 if ((store_addr + binlen - 1) > end_addr)
187 end_addr = store_addr + binlen - 1;
188 break;
189 case SREC_END2:
190 case SREC_END3:
191 case SREC_END4:
192 udelay (10000);
193 size = end_addr - start_addr + 1;
194 printf ("\n"
195 "## First Load Addr = 0x%08lX\n"
196 "## Last Load Addr = 0x%08lX\n"
197 "## Total Size = 0x%08lX = %ld Bytes\n",
198 start_addr, end_addr, size, size
199 );
wdenk3f85ce22004-02-23 16:11:30 +0000200 flush_cache (start_addr, size);
wdenk8bde7f72003-06-27 21:31:46 +0000201 sprintf(buf, "%lX", size);
202 setenv("filesize", buf);
203 return (addr);
204 case SREC_START:
205 break;
206 default:
207 break;
208 }
209 if (!do_echo) { /* print a '.' every 100 lines */
210 if ((++line_count % 100) == 0)
211 putc ('.');
212 }
213 }
214
215 return (~0); /* Download aborted */
216}
217
218static int
219read_record (char *buf, ulong len)
220{
221 char *p;
222 char c;
223
224 --len; /* always leave room for terminating '\0' byte */
225
226 for (p=buf; p < buf+len; ++p) {
wdenk232c1502004-03-12 00:14:09 +0000227 c = getc(); /* read character */
wdenk8bde7f72003-06-27 21:31:46 +0000228 if (do_echo)
wdenk232c1502004-03-12 00:14:09 +0000229 putc (c); /* ... and echo it */
wdenk8bde7f72003-06-27 21:31:46 +0000230
231 switch (c) {
232 case '\r':
233 case '\n':
234 *p = '\0';
235 return (p - buf);
236 case '\0':
237 case 0x03: /* ^C - Control C */
238 return (-1);
239 default:
240 *p = c;
241 }
242
243 /* Check for the console hangup (if any different from serial) */
wdenk232c1502004-03-12 00:14:09 +0000244 if (gd->jt[XF_getc] != getc) {
wdenk8bde7f72003-06-27 21:31:46 +0000245 if (ctrlc()) {
246 return (-1);
247 }
248 }
wdenk8bde7f72003-06-27 21:31:46 +0000249 }
250
251 /* line too long - truncate */
252 *p = '\0';
253 return (p - buf);
254}
255
Jon Loeligerc76fe472007-07-08 18:02:23 -0500256#if defined(CONFIG_CMD_SAVES)
wdenk8bde7f72003-06-27 21:31:46 +0000257
258int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
259{
260 ulong offset = 0;
261 ulong size = 0;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200262#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
wdenk8bde7f72003-06-27 21:31:46 +0000263 int save_baudrate, current_baudrate;
264
265 save_baudrate = current_baudrate = gd->baudrate;
266#endif
267
268 if (argc >= 2) {
269 offset = simple_strtoul(argv[1], NULL, 16);
270 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200271#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
wdenk8bde7f72003-06-27 21:31:46 +0000272 if (argc >= 3) {
273 size = simple_strtoul(argv[2], NULL, 16);
274 }
275 if (argc == 4) {
276 save_baudrate = (int)simple_strtoul(argv[3], NULL, 10);
277
278 /* default to current baudrate */
279 if (save_baudrate == 0)
280 save_baudrate = current_baudrate;
281 }
282 if (save_baudrate != current_baudrate) {
283 printf ("## Switch baudrate to %d bps and press ENTER ...\n",
284 save_baudrate);
285 udelay(50000);
286 gd->baudrate = save_baudrate;
287 serial_setbrg ();
288 udelay(50000);
289 for (;;) {
290 if (getc() == '\r')
291 break;
292 }
293 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200294#else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
wdenk8bde7f72003-06-27 21:31:46 +0000295 if (argc == 3) {
296 size = simple_strtoul(argv[2], NULL, 16);
297 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200298#endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
wdenk8bde7f72003-06-27 21:31:46 +0000299
300 printf ("## Ready for S-Record upload, press ENTER to proceed ...\n");
301 for (;;) {
302 if (getc() == '\r')
303 break;
304 }
305 if(save_serial (offset, size)) {
306 printf ("## S-Record upload aborted\n");
307 } else {
308 printf ("## S-Record upload complete\n");
309 }
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200310#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
wdenk8bde7f72003-06-27 21:31:46 +0000311 if (save_baudrate != current_baudrate) {
312 printf ("## Switch baudrate to %d bps and press ESC ...\n",
313 (int)current_baudrate);
314 udelay (50000);
315 gd->baudrate = current_baudrate;
316 serial_setbrg ();
317 udelay (50000);
318 for (;;) {
319 if (getc() == 0x1B) /* ESC */
320 break;
321 }
322 }
323#endif
324 return 0;
325}
326
327#define SREC3_START "S0030000FC\n"
328#define SREC3_FORMAT "S3%02X%08lX%s%02X\n"
329#define SREC3_END "S70500000000FA\n"
330#define SREC_BYTES_PER_RECORD 16
331
332static int save_serial (ulong address, ulong count)
333{
334 int i, c, reclen, checksum, length;
335 char *hex = "0123456789ABCDEF";
336 char record[2*SREC_BYTES_PER_RECORD+16]; /* buffer for one S-Record */
337 char data[2*SREC_BYTES_PER_RECORD+1]; /* buffer for hex data */
338
339 reclen = 0;
340 checksum = 0;
341
342 if(write_record(SREC3_START)) /* write the header */
343 return (-1);
344 do {
345 if(count) { /* collect hex data in the buffer */
346 c = *(volatile uchar*)(address + reclen); /* get one byte */
347 checksum += c; /* accumulate checksum */
348 data[2*reclen] = hex[(c>>4)&0x0f];
349 data[2*reclen+1] = hex[c & 0x0f];
350 data[2*reclen+2] = '\0';
351 ++reclen;
352 --count;
353 }
354 if(reclen == SREC_BYTES_PER_RECORD || count == 0) {
355 /* enough data collected for one record: dump it */
356 if(reclen) { /* build & write a data record: */
357 /* address + data + checksum */
358 length = 4 + reclen + 1;
359
360 /* accumulate length bytes into checksum */
361 for(i = 0; i < 2; i++)
362 checksum += (length >> (8*i)) & 0xff;
363
364 /* accumulate address bytes into checksum: */
365 for(i = 0; i < 4; i++)
366 checksum += (address >> (8*i)) & 0xff;
367
368 /* make proper checksum byte: */
369 checksum = ~checksum & 0xff;
370
371 /* output one record: */
372 sprintf(record, SREC3_FORMAT, length, address, data, checksum);
373 if(write_record(record))
374 return (-1);
375 }
376 address += reclen; /* increment address */
377 checksum = 0;
378 reclen = 0;
379 }
380 }
381 while(count);
382 if(write_record(SREC3_END)) /* write the final record */
383 return (-1);
384 return(0);
385}
386
387static int
388write_record (char *buf)
389{
390 char c;
391
392 while((c = *buf++))
wdenk232c1502004-03-12 00:14:09 +0000393 putc(c);
wdenk8bde7f72003-06-27 21:31:46 +0000394
395 /* Check for the console hangup (if any different from serial) */
396
397 if (ctrlc()) {
398 return (-1);
399 }
400 return (0);
401}
Jon Loeliger90253172007-07-10 11:02:44 -0500402# endif
wdenk8bde7f72003-06-27 21:31:46 +0000403
Jon Loeliger90253172007-07-10 11:02:44 -0500404#endif
wdenk8bde7f72003-06-27 21:31:46 +0000405
406
Jon Loeligerc76fe472007-07-08 18:02:23 -0500407#if defined(CONFIG_CMD_LOADB)
Jon Loeliger65c450b2007-06-11 19:01:54 -0500408/*
409 * loadb command (load binary) included
410 */
wdenk8bde7f72003-06-27 21:31:46 +0000411#define XON_CHAR 17
412#define XOFF_CHAR 19
413#define START_CHAR 0x01
414#define ETX_CHAR 0x03
415#define END_CHAR 0x0D
416#define SPACE 0x20
417#define K_ESCAPE 0x23
418#define SEND_TYPE 'S'
419#define DATA_TYPE 'D'
420#define ACK_TYPE 'Y'
421#define NACK_TYPE 'N'
422#define BREAK_TYPE 'B'
423#define tochar(x) ((char) (((x) + SPACE) & 0xff))
424#define untochar(x) ((int) (((x) - SPACE) & 0xff))
425
wdenk8bde7f72003-06-27 21:31:46 +0000426static void set_kerm_bin_mode(unsigned long *);
427static int k_recv(void);
428static ulong load_serial_bin (ulong offset);
429
430
431char his_eol; /* character he needs at end of packet */
432int his_pad_count; /* number of pad chars he needs */
433char his_pad_char; /* pad chars he needs */
434char his_quote; /* quote chars he'll use */
435
436int do_load_serial_bin (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
437{
wdenk8bde7f72003-06-27 21:31:46 +0000438 ulong offset = 0;
439 ulong addr;
440 int load_baudrate, current_baudrate;
441 int rcode = 0;
442 char *s;
443
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200444 /* pre-set offset from CONFIG_SYS_LOAD_ADDR */
445 offset = CONFIG_SYS_LOAD_ADDR;
wdenk8bde7f72003-06-27 21:31:46 +0000446
447 /* pre-set offset from $loadaddr */
448 if ((s = getenv("loadaddr")) != NULL) {
449 offset = simple_strtoul(s, NULL, 16);
450 }
451
452 load_baudrate = current_baudrate = gd->baudrate;
453
454 if (argc >= 2) {
455 offset = simple_strtoul(argv[1], NULL, 16);
456 }
457 if (argc == 3) {
458 load_baudrate = (int)simple_strtoul(argv[2], NULL, 10);
459
460 /* default to current baudrate */
461 if (load_baudrate == 0)
462 load_baudrate = current_baudrate;
463 }
464
465 if (load_baudrate != current_baudrate) {
466 printf ("## Switch baudrate to %d bps and press ENTER ...\n",
467 load_baudrate);
468 udelay(50000);
469 gd->baudrate = load_baudrate;
470 serial_setbrg ();
471 udelay(50000);
472 for (;;) {
473 if (getc() == '\r')
474 break;
475 }
476 }
477
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200478 if (strcmp(argv[0],"loady")==0) {
479 printf ("## Ready for binary (ymodem) download "
480 "to 0x%08lX at %d bps...\n",
481 offset,
482 load_baudrate);
wdenk8bde7f72003-06-27 21:31:46 +0000483
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200484 addr = load_serial_ymodem (offset);
485
wdenk8bde7f72003-06-27 21:31:46 +0000486 } else {
wdenk8bde7f72003-06-27 21:31:46 +0000487
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200488 printf ("## Ready for binary (kermit) download "
489 "to 0x%08lX at %d bps...\n",
490 offset,
491 load_baudrate);
492 addr = load_serial_bin (offset);
493
494 if (addr == ~0) {
495 load_addr = 0;
496 printf ("## Binary (kermit) download aborted\n");
497 rcode = 1;
498 } else {
499 printf ("## Start Addr = 0x%08lX\n", addr);
500 load_addr = addr;
501 }
502 }
wdenk8bde7f72003-06-27 21:31:46 +0000503 if (load_baudrate != current_baudrate) {
504 printf ("## Switch baudrate to %d bps and press ESC ...\n",
505 current_baudrate);
506 udelay (50000);
507 gd->baudrate = current_baudrate;
508 serial_setbrg ();
509 udelay (50000);
510 for (;;) {
511 if (getc() == 0x1B) /* ESC */
512 break;
513 }
514 }
515
516#ifdef CONFIG_AUTOSCRIPT
517 if (load_addr) {
518 char *s;
519
520 if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) {
Marian Balakowicz424c4ab2008-03-12 10:33:00 +0100521 printf ("Running autoscript at addr 0x%08lX", load_addr);
522
523 s = getenv ("autoscript_uname");
524 if (s)
525 printf (":%s ...\n", s);
526 else
527 puts (" ...\n");
528
529 rcode = autoscript (load_addr, s);
wdenk8bde7f72003-06-27 21:31:46 +0000530 }
531 }
532#endif
533 return rcode;
534}
535
536
537static ulong load_serial_bin (ulong offset)
538{
539 int size, i;
540 char buf[32];
541
542 set_kerm_bin_mode ((ulong *) offset);
543 size = k_recv ();
544
545 /*
546 * Gather any trailing characters (for instance, the ^D which
547 * is sent by 'cu' after sending a file), and give the
548 * box some time (100 * 1 ms)
549 */
550 for (i=0; i<100; ++i) {
wdenk232c1502004-03-12 00:14:09 +0000551 if (tstc()) {
552 (void) getc();
wdenk8bde7f72003-06-27 21:31:46 +0000553 }
554 udelay(1000);
555 }
556
557 flush_cache (offset, size);
558
559 printf("## Total Size = 0x%08x = %d Bytes\n", size, size);
560 sprintf(buf, "%X", size);
561 setenv("filesize", buf);
562
563 return offset;
564}
565
566void send_pad (void)
567{
568 int count = his_pad_count;
569
570 while (count-- > 0)
wdenk232c1502004-03-12 00:14:09 +0000571 putc (his_pad_char);
wdenk8bde7f72003-06-27 21:31:46 +0000572}
573
574/* converts escaped kermit char to binary char */
575char ktrans (char in)
576{
577 if ((in & 0x60) == 0x40) {
578 return (char) (in & ~0x40);
579 } else if ((in & 0x7f) == 0x3f) {
580 return (char) (in | 0x40);
581 } else
582 return in;
583}
584
585int chk1 (char *buffer)
586{
587 int total = 0;
588
589 while (*buffer) {
590 total += *buffer++;
591 }
592 return (int) ((total + ((total >> 6) & 0x03)) & 0x3f);
593}
594
595void s1_sendpacket (char *packet)
596{
597 send_pad ();
598 while (*packet) {
wdenk232c1502004-03-12 00:14:09 +0000599 putc (*packet++);
wdenk8bde7f72003-06-27 21:31:46 +0000600 }
601}
602
603static char a_b[24];
604void send_ack (int n)
605{
606 a_b[0] = START_CHAR;
607 a_b[1] = tochar (3);
608 a_b[2] = tochar (n);
609 a_b[3] = ACK_TYPE;
610 a_b[4] = '\0';
611 a_b[4] = tochar (chk1 (&a_b[1]));
612 a_b[5] = his_eol;
613 a_b[6] = '\0';
614 s1_sendpacket (a_b);
615}
616
617void send_nack (int n)
618{
619 a_b[0] = START_CHAR;
620 a_b[1] = tochar (3);
621 a_b[2] = tochar (n);
622 a_b[3] = NACK_TYPE;
623 a_b[4] = '\0';
624 a_b[4] = tochar (chk1 (&a_b[1]));
625 a_b[5] = his_eol;
626 a_b[6] = '\0';
627 s1_sendpacket (a_b);
628}
629
630
wdenk8bde7f72003-06-27 21:31:46 +0000631void (*os_data_init) (void);
632void (*os_data_char) (char new_char);
633static int os_data_state, os_data_state_saved;
wdenk8bde7f72003-06-27 21:31:46 +0000634static char *os_data_addr, *os_data_addr_saved;
635static char *bin_start_address;
Gururaja Hebbar K Ra9fe0c32008-08-07 13:13:27 +0530636
wdenk8bde7f72003-06-27 21:31:46 +0000637static void bin_data_init (void)
638{
639 os_data_state = 0;
wdenk8bde7f72003-06-27 21:31:46 +0000640 os_data_addr = bin_start_address;
641}
Gururaja Hebbar K Ra9fe0c32008-08-07 13:13:27 +0530642
wdenk8bde7f72003-06-27 21:31:46 +0000643static void os_data_save (void)
644{
645 os_data_state_saved = os_data_state;
wdenk8bde7f72003-06-27 21:31:46 +0000646 os_data_addr_saved = os_data_addr;
647}
Gururaja Hebbar K Ra9fe0c32008-08-07 13:13:27 +0530648
wdenk8bde7f72003-06-27 21:31:46 +0000649static void os_data_restore (void)
650{
651 os_data_state = os_data_state_saved;
wdenk8bde7f72003-06-27 21:31:46 +0000652 os_data_addr = os_data_addr_saved;
653}
Gururaja Hebbar K Ra9fe0c32008-08-07 13:13:27 +0530654
wdenk8bde7f72003-06-27 21:31:46 +0000655static void bin_data_char (char new_char)
656{
657 switch (os_data_state) {
658 case 0: /* data */
659 *os_data_addr++ = new_char;
wdenk8bde7f72003-06-27 21:31:46 +0000660 break;
661 }
662}
Gururaja Hebbar K Ra9fe0c32008-08-07 13:13:27 +0530663
wdenk8bde7f72003-06-27 21:31:46 +0000664static void set_kerm_bin_mode (unsigned long *addr)
665{
666 bin_start_address = (char *) addr;
667 os_data_init = bin_data_init;
668 os_data_char = bin_data_char;
669}
670
671
672/* k_data_* simply handles the kermit escape translations */
673static int k_data_escape, k_data_escape_saved;
674void k_data_init (void)
675{
676 k_data_escape = 0;
677 os_data_init ();
678}
Gururaja Hebbar K Ra9fe0c32008-08-07 13:13:27 +0530679
wdenk8bde7f72003-06-27 21:31:46 +0000680void k_data_save (void)
681{
682 k_data_escape_saved = k_data_escape;
683 os_data_save ();
684}
Gururaja Hebbar K Ra9fe0c32008-08-07 13:13:27 +0530685
wdenk8bde7f72003-06-27 21:31:46 +0000686void k_data_restore (void)
687{
688 k_data_escape = k_data_escape_saved;
689 os_data_restore ();
690}
Gururaja Hebbar K Ra9fe0c32008-08-07 13:13:27 +0530691
wdenk8bde7f72003-06-27 21:31:46 +0000692void k_data_char (char new_char)
693{
694 if (k_data_escape) {
695 /* last char was escape - translate this character */
696 os_data_char (ktrans (new_char));
697 k_data_escape = 0;
698 } else {
699 if (new_char == his_quote) {
700 /* this char is escape - remember */
701 k_data_escape = 1;
702 } else {
703 /* otherwise send this char as-is */
704 os_data_char (new_char);
705 }
706 }
707}
708
709#define SEND_DATA_SIZE 20
710char send_parms[SEND_DATA_SIZE];
711char *send_ptr;
712
713/* handle_send_packet interprits the protocol info and builds and
714 sends an appropriate ack for what we can do */
715void handle_send_packet (int n)
716{
717 int length = 3;
718 int bytes;
719
720 /* initialize some protocol parameters */
721 his_eol = END_CHAR; /* default end of line character */
722 his_pad_count = 0;
723 his_pad_char = '\0';
724 his_quote = K_ESCAPE;
725
726 /* ignore last character if it filled the buffer */
727 if (send_ptr == &send_parms[SEND_DATA_SIZE - 1])
728 --send_ptr;
729 bytes = send_ptr - send_parms; /* how many bytes we'll process */
730 do {
731 if (bytes-- <= 0)
732 break;
733 /* handle MAXL - max length */
734 /* ignore what he says - most I'll take (here) is 94 */
735 a_b[++length] = tochar (94);
736 if (bytes-- <= 0)
737 break;
738 /* handle TIME - time you should wait for my packets */
739 /* ignore what he says - don't wait for my ack longer than 1 second */
740 a_b[++length] = tochar (1);
741 if (bytes-- <= 0)
742 break;
743 /* handle NPAD - number of pad chars I need */
744 /* remember what he says - I need none */
745 his_pad_count = untochar (send_parms[2]);
746 a_b[++length] = tochar (0);
747 if (bytes-- <= 0)
748 break;
749 /* handle PADC - pad chars I need */
750 /* remember what he says - I need none */
751 his_pad_char = ktrans (send_parms[3]);
752 a_b[++length] = 0x40; /* He should ignore this */
753 if (bytes-- <= 0)
754 break;
755 /* handle EOL - end of line he needs */
756 /* remember what he says - I need CR */
757 his_eol = untochar (send_parms[4]);
758 a_b[++length] = tochar (END_CHAR);
759 if (bytes-- <= 0)
760 break;
761 /* handle QCTL - quote control char he'll use */
762 /* remember what he says - I'll use '#' */
763 his_quote = send_parms[5];
764 a_b[++length] = '#';
765 if (bytes-- <= 0)
766 break;
767 /* handle QBIN - 8-th bit prefixing */
768 /* ignore what he says - I refuse */
769 a_b[++length] = 'N';
770 if (bytes-- <= 0)
771 break;
772 /* handle CHKT - the clock check type */
773 /* ignore what he says - I do type 1 (for now) */
774 a_b[++length] = '1';
775 if (bytes-- <= 0)
776 break;
777 /* handle REPT - the repeat prefix */
778 /* ignore what he says - I refuse (for now) */
779 a_b[++length] = 'N';
780 if (bytes-- <= 0)
781 break;
782 /* handle CAPAS - the capabilities mask */
783 /* ignore what he says - I only do long packets - I don't do windows */
784 a_b[++length] = tochar (2); /* only long packets */
785 a_b[++length] = tochar (0); /* no windows */
786 a_b[++length] = tochar (94); /* large packet msb */
787 a_b[++length] = tochar (94); /* large packet lsb */
788 } while (0);
789
790 a_b[0] = START_CHAR;
791 a_b[1] = tochar (length);
792 a_b[2] = tochar (n);
793 a_b[3] = ACK_TYPE;
794 a_b[++length] = '\0';
795 a_b[length] = tochar (chk1 (&a_b[1]));
796 a_b[++length] = his_eol;
797 a_b[++length] = '\0';
798 s1_sendpacket (a_b);
799}
800
801/* k_recv receives a OS Open image file over kermit line */
802static int k_recv (void)
803{
804 char new_char;
805 char k_state, k_state_saved;
806 int sum;
807 int done;
808 int length;
809 int n, last_n;
wdenk8bde7f72003-06-27 21:31:46 +0000810 int len_lo, len_hi;
811
812 /* initialize some protocol parameters */
813 his_eol = END_CHAR; /* default end of line character */
814 his_pad_count = 0;
815 his_pad_char = '\0';
816 his_quote = K_ESCAPE;
817
818 /* initialize the k_recv and k_data state machine */
819 done = 0;
820 k_state = 0;
821 k_data_init ();
822 k_state_saved = k_state;
823 k_data_save ();
824 n = 0; /* just to get rid of a warning */
825 last_n = -1;
826
827 /* expect this "type" sequence (but don't check):
828 S: send initiate
829 F: file header
830 D: data (multiple)
831 Z: end of file
832 B: break transmission
833 */
834
835 /* enter main loop */
836 while (!done) {
837 /* set the send packet pointer to begining of send packet parms */
838 send_ptr = send_parms;
839
840 /* With each packet, start summing the bytes starting with the length.
841 Save the current sequence number.
842 Note the type of the packet.
843 If a character less than SPACE (0x20) is received - error.
844 */
845
846#if 0
847 /* OLD CODE, Prior to checking sequence numbers */
848 /* first have all state machines save current states */
849 k_state_saved = k_state;
850 k_data_save ();
851#endif
852
853 /* get a packet */
854 /* wait for the starting character or ^C */
855 for (;;) {
wdenk232c1502004-03-12 00:14:09 +0000856 switch (getc ()) {
wdenk8bde7f72003-06-27 21:31:46 +0000857 case START_CHAR: /* start packet */
858 goto START;
859 case ETX_CHAR: /* ^C waiting for packet */
860 return (0);
861 default:
862 ;
863 }
864 }
865START:
866 /* get length of packet */
867 sum = 0;
wdenk232c1502004-03-12 00:14:09 +0000868 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000869 if ((new_char & 0xE0) == 0)
870 goto packet_error;
871 sum += new_char & 0xff;
872 length = untochar (new_char);
873 /* get sequence number */
wdenk232c1502004-03-12 00:14:09 +0000874 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000875 if ((new_char & 0xE0) == 0)
876 goto packet_error;
877 sum += new_char & 0xff;
878 n = untochar (new_char);
879 --length;
880
881 /* NEW CODE - check sequence numbers for retried packets */
882 /* Note - this new code assumes that the sequence number is correctly
883 * received. Handling an invalid sequence number adds another layer
884 * of complexity that may not be needed - yet! At this time, I'm hoping
885 * that I don't need to buffer the incoming data packets and can write
886 * the data into memory in real time.
887 */
888 if (n == last_n) {
889 /* same sequence number, restore the previous state */
890 k_state = k_state_saved;
891 k_data_restore ();
892 } else {
893 /* new sequence number, checkpoint the download */
894 last_n = n;
895 k_state_saved = k_state;
896 k_data_save ();
897 }
898 /* END NEW CODE */
899
900 /* get packet type */
wdenk232c1502004-03-12 00:14:09 +0000901 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000902 if ((new_char & 0xE0) == 0)
903 goto packet_error;
904 sum += new_char & 0xff;
905 k_state = new_char;
906 --length;
907 /* check for extended length */
908 if (length == -2) {
909 /* (length byte was 0, decremented twice) */
910 /* get the two length bytes */
wdenk232c1502004-03-12 00:14:09 +0000911 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000912 if ((new_char & 0xE0) == 0)
913 goto packet_error;
914 sum += new_char & 0xff;
915 len_hi = untochar (new_char);
wdenk232c1502004-03-12 00:14:09 +0000916 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000917 if ((new_char & 0xE0) == 0)
918 goto packet_error;
919 sum += new_char & 0xff;
920 len_lo = untochar (new_char);
921 length = len_hi * 95 + len_lo;
922 /* check header checksum */
wdenk232c1502004-03-12 00:14:09 +0000923 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000924 if ((new_char & 0xE0) == 0)
925 goto packet_error;
926 if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f))
927 goto packet_error;
928 sum += new_char & 0xff;
929/* --length; */ /* new length includes only data and block check to come */
930 }
931 /* bring in rest of packet */
932 while (length > 1) {
wdenk232c1502004-03-12 00:14:09 +0000933 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000934 if ((new_char & 0xE0) == 0)
935 goto packet_error;
936 sum += new_char & 0xff;
937 --length;
938 if (k_state == DATA_TYPE) {
939 /* pass on the data if this is a data packet */
940 k_data_char (new_char);
941 } else if (k_state == SEND_TYPE) {
942 /* save send pack in buffer as is */
943 *send_ptr++ = new_char;
944 /* if too much data, back off the pointer */
945 if (send_ptr >= &send_parms[SEND_DATA_SIZE])
946 --send_ptr;
947 }
948 }
949 /* get and validate checksum character */
wdenk232c1502004-03-12 00:14:09 +0000950 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000951 if ((new_char & 0xE0) == 0)
952 goto packet_error;
953 if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f))
954 goto packet_error;
955 /* get END_CHAR */
wdenk232c1502004-03-12 00:14:09 +0000956 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000957 if (new_char != END_CHAR) {
958 packet_error:
959 /* restore state machines */
960 k_state = k_state_saved;
961 k_data_restore ();
962 /* send a negative acknowledge packet in */
963 send_nack (n);
964 } else if (k_state == SEND_TYPE) {
965 /* crack the protocol parms, build an appropriate ack packet */
966 handle_send_packet (n);
967 } else {
968 /* send simple acknowledge packet in */
969 send_ack (n);
970 /* quit if end of transmission */
971 if (k_state == BREAK_TYPE)
972 done = 1;
973 }
wdenk8bde7f72003-06-27 21:31:46 +0000974 }
975 return ((ulong) os_data_addr - (ulong) bin_start_address);
976}
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200977
978static int getcxmodem(void) {
Wolfgang Denkcf48eb92006-04-16 10:51:58 +0200979 if (tstc())
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200980 return (getc());
981 return -1;
982}
983static ulong load_serial_ymodem (ulong offset)
984{
985 int size;
986 char buf[32];
987 int err;
988 int res;
989 connection_info_t info;
Wolfgang Denkcf48eb92006-04-16 10:51:58 +0200990 char ymodemBuf[1024];
991 ulong store_addr = ~0;
992 ulong addr = 0;
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200993
Wolfgang Denkcf48eb92006-04-16 10:51:58 +0200994 size = 0;
995 info.mode = xyzModem_ymodem;
996 res = xyzModem_stream_open (&info, &err);
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200997 if (!res) {
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200998
Wolfgang Denkcf48eb92006-04-16 10:51:58 +0200999 while ((res =
1000 xyzModem_stream_read (ymodemBuf, 1024, &err)) > 0) {
1001 store_addr = addr + offset;
1002 size += res;
1003 addr += res;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001004#ifndef CONFIG_SYS_NO_FLASH
Wolfgang Denkcf48eb92006-04-16 10:51:58 +02001005 if (addr2info (store_addr)) {
1006 int rc;
1007
1008 rc = flash_write ((char *) ymodemBuf,
1009 store_addr, res);
1010 if (rc != 0) {
1011 flash_perror (rc);
1012 return (~0);
1013 }
1014 } else
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +02001015#endif
Wolfgang Denkcf48eb92006-04-16 10:51:58 +02001016 {
1017 memcpy ((char *) (store_addr), ymodemBuf,
1018 res);
1019 }
1020
1021 }
1022 } else {
1023 printf ("%s\n", xyzModem_error (err));
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +02001024 }
Wolfgang Denkcf48eb92006-04-16 10:51:58 +02001025
1026 xyzModem_stream_close (&err);
1027 xyzModem_stream_terminate (false, &getcxmodem);
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +02001028
1029
1030 flush_cache (offset, size);
1031
Wolfgang Denkcf48eb92006-04-16 10:51:58 +02001032 printf ("## Total Size = 0x%08x = %d Bytes\n", size, size);
1033 sprintf (buf, "%X", size);
1034 setenv ("filesize", buf);
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +02001035
1036 return offset;
1037}
1038
Jon Loeliger90253172007-07-10 11:02:44 -05001039#endif
wdenk8bde7f72003-06-27 21:31:46 +00001040
1041/* -------------------------------------------------------------------- */
1042
Jon Loeligerc76fe472007-07-08 18:02:23 -05001043#if defined(CONFIG_CMD_LOADS)
wdenk8bde7f72003-06-27 21:31:46 +00001044
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001045#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
wdenk0d498392003-07-01 21:06:45 +00001046U_BOOT_CMD(
1047 loads, 3, 0, do_load_serial,
Peter Tyser2fb26042009-01-27 18:03:12 -06001048 "load S-Record file over serial line",
wdenk8bde7f72003-06-27 21:31:46 +00001049 "[ off ] [ baud ]\n"
1050 " - load S-Record file over serial line"
1051 " with offset 'off' and baudrate 'baud'\n"
1052);
1053
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001054#else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
wdenk0d498392003-07-01 21:06:45 +00001055U_BOOT_CMD(
1056 loads, 2, 0, do_load_serial,
Peter Tyser2fb26042009-01-27 18:03:12 -06001057 "load S-Record file over serial line",
wdenk8bde7f72003-06-27 21:31:46 +00001058 "[ off ]\n"
1059 " - load S-Record file over serial line with offset 'off'\n"
1060);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001061#endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
wdenk8bde7f72003-06-27 21:31:46 +00001062
1063/*
1064 * SAVES always requires LOADS support, but not vice versa
1065 */
1066
1067
Jon Loeligerc76fe472007-07-08 18:02:23 -05001068#if defined(CONFIG_CMD_SAVES)
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001069#ifdef CONFIG_SYS_LOADS_BAUD_CHANGE
wdenk0d498392003-07-01 21:06:45 +00001070U_BOOT_CMD(
1071 saves, 4, 0, do_save_serial,
Peter Tyser2fb26042009-01-27 18:03:12 -06001072 "save S-Record file over serial line",
wdenk8bde7f72003-06-27 21:31:46 +00001073 "[ off ] [size] [ baud ]\n"
1074 " - save S-Record file over serial line"
1075 " with offset 'off', size 'size' and baudrate 'baud'\n"
1076);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001077#else /* ! CONFIG_SYS_LOADS_BAUD_CHANGE */
wdenk0d498392003-07-01 21:06:45 +00001078U_BOOT_CMD(
1079 saves, 3, 0, do_save_serial,
Peter Tyser2fb26042009-01-27 18:03:12 -06001080 "save S-Record file over serial line",
wdenk8bde7f72003-06-27 21:31:46 +00001081 "[ off ] [size]\n"
1082 " - save S-Record file over serial line with offset 'off' and size 'size'\n"
1083);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +02001084#endif /* CONFIG_SYS_LOADS_BAUD_CHANGE */
Jon Loeliger90253172007-07-10 11:02:44 -05001085#endif
1086#endif
wdenk8bde7f72003-06-27 21:31:46 +00001087
1088
Jon Loeligerc76fe472007-07-08 18:02:23 -05001089#if defined(CONFIG_CMD_LOADB)
wdenk0d498392003-07-01 21:06:45 +00001090U_BOOT_CMD(
1091 loadb, 3, 0, do_load_serial_bin,
Peter Tyser2fb26042009-01-27 18:03:12 -06001092 "load binary file over serial line (kermit mode)",
wdenk8bde7f72003-06-27 21:31:46 +00001093 "[ off ] [ baud ]\n"
1094 " - load binary file over serial line"
1095 " with offset 'off' and baudrate 'baud'\n"
1096);
1097
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +02001098U_BOOT_CMD(
1099 loady, 3, 0, do_load_serial_bin,
Peter Tyser2fb26042009-01-27 18:03:12 -06001100 "load binary file over serial line (ymodem mode)",
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +02001101 "[ off ] [ baud ]\n"
1102 " - load binary file over serial line"
1103 " with offset 'off' and baudrate 'baud'\n"
1104);
1105
Jon Loeliger90253172007-07-10 11:02:44 -05001106#endif
wdenk8bde7f72003-06-27 21:31:46 +00001107
1108/* -------------------------------------------------------------------- */
1109
Jon Loeligerc76fe472007-07-08 18:02:23 -05001110#if defined(CONFIG_CMD_HWFLOW)
wdenk8bde7f72003-06-27 21:31:46 +00001111int do_hwflow (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1112{
1113 extern int hwflow_onoff(int);
1114
1115 if (argc == 2) {
1116 if (strcmp(argv[1], "off") == 0)
1117 hwflow_onoff(-1);
1118 else
1119 if (strcmp(argv[1], "on") == 0)
1120 hwflow_onoff(1);
1121 else
Peter Tyser62c3ae72009-01-27 18:03:10 -06001122 cmd_usage(cmdtp);
wdenk8bde7f72003-06-27 21:31:46 +00001123 }
1124 printf("RTS/CTS hardware flow control: %s\n", hwflow_onoff(0) ? "on" : "off");
1125 return 0;
1126}
1127
1128/* -------------------------------------------------------------------- */
1129
wdenk0d498392003-07-01 21:06:45 +00001130U_BOOT_CMD(
wdenkf12e5682003-07-07 20:07:54 +00001131 hwflow, 2, 0, do_hwflow,
Peter Tyser2fb26042009-01-27 18:03:12 -06001132 "turn the harwdare flow control on/off",
wdenkf12e5682003-07-07 20:07:54 +00001133 "[on|off]\n - change RTS/CTS hardware flow control over serial line\n"
wdenk8bde7f72003-06-27 21:31:46 +00001134);
1135
Jon Loeliger90253172007-07-10 11:02:44 -05001136#endif