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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
Wolfgang Denk8546e232006-05-02 00:11:25 +020036#if (CONFIG_COMMANDS & CFG_CMD_LOADB)
37static ulong load_serial_ymodem (ulong offset);
38#endif
39
wdenk8bde7f72003-06-27 21:31:46 +000040#if (CONFIG_COMMANDS & CFG_CMD_LOADS)
41static ulong load_serial (ulong offset);
42static int read_record (char *buf, ulong len);
43# if (CONFIG_COMMANDS & CFG_CMD_SAVES)
44static int save_serial (ulong offset, ulong size);
45static int write_record (char *buf);
46# endif /* CFG_CMD_SAVES */
47
48static int do_echo = 1;
49#endif /* CFG_CMD_LOADS */
50
51/* -------------------------------------------------------------------- */
52
53#if (CONFIG_COMMANDS & CFG_CMD_LOADS)
54int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
55{
56 ulong offset = 0;
57 ulong addr;
58 int i;
59 char *env_echo;
60 int rcode = 0;
61#ifdef CFG_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
73#ifdef CFG_LOADS_BAUD_CHANGE
74 if (argc >= 2) {
75 offset = simple_strtoul(argv[1], NULL, 16);
76 }
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 }
96#else /* ! CFG_LOADS_BAUD_CHANGE */
97 if (argc == 2) {
98 offset = simple_strtoul(argv[1], NULL, 16);
99 }
100#endif /* CFG_LOADS_BAUD_CHANGE */
101
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
126#ifdef CFG_LOADS_BAUD_CHANGE
127 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
144load_serial (ulong offset)
145{
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;
170#ifndef CFG_NO_FLASH
171 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
256#if (CONFIG_COMMANDS & CFG_CMD_SAVES)
257
258int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
259{
260 ulong offset = 0;
261 ulong size = 0;
262#ifdef CFG_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 }
271#ifdef CFG_LOADS_BAUD_CHANGE
272 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 }
294#else /* ! CFG_LOADS_BAUD_CHANGE */
295 if (argc == 3) {
296 size = simple_strtoul(argv[2], NULL, 16);
297 }
298#endif /* CFG_LOADS_BAUD_CHANGE */
299
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 }
310#ifdef CFG_LOADS_BAUD_CHANGE
311 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}
402# endif /* CFG_CMD_SAVES */
403
404#endif /* CFG_CMD_LOADS */
405
406
407#if (CONFIG_COMMANDS & CFG_CMD_LOADB) /* loadb command (load binary) included */
408
409#define XON_CHAR 17
410#define XOFF_CHAR 19
411#define START_CHAR 0x01
412#define ETX_CHAR 0x03
413#define END_CHAR 0x0D
414#define SPACE 0x20
415#define K_ESCAPE 0x23
416#define SEND_TYPE 'S'
417#define DATA_TYPE 'D'
418#define ACK_TYPE 'Y'
419#define NACK_TYPE 'N'
420#define BREAK_TYPE 'B'
421#define tochar(x) ((char) (((x) + SPACE) & 0xff))
422#define untochar(x) ((int) (((x) - SPACE) & 0xff))
423
424extern int os_data_count;
425extern int os_data_header[8];
426
427static void set_kerm_bin_mode(unsigned long *);
428static int k_recv(void);
429static ulong load_serial_bin (ulong offset);
430
431
432char his_eol; /* character he needs at end of packet */
433int his_pad_count; /* number of pad chars he needs */
434char his_pad_char; /* pad chars he needs */
435char his_quote; /* quote chars he'll use */
436
437int do_load_serial_bin (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
438{
wdenk8bde7f72003-06-27 21:31:46 +0000439 ulong offset = 0;
440 ulong addr;
441 int load_baudrate, current_baudrate;
442 int rcode = 0;
443 char *s;
444
445 /* pre-set offset from CFG_LOAD_ADDR */
446 offset = CFG_LOAD_ADDR;
447
448 /* pre-set offset from $loadaddr */
449 if ((s = getenv("loadaddr")) != NULL) {
450 offset = simple_strtoul(s, NULL, 16);
451 }
452
453 load_baudrate = current_baudrate = gd->baudrate;
454
455 if (argc >= 2) {
456 offset = simple_strtoul(argv[1], NULL, 16);
457 }
458 if (argc == 3) {
459 load_baudrate = (int)simple_strtoul(argv[2], NULL, 10);
460
461 /* default to current baudrate */
462 if (load_baudrate == 0)
463 load_baudrate = current_baudrate;
464 }
465
466 if (load_baudrate != current_baudrate) {
467 printf ("## Switch baudrate to %d bps and press ENTER ...\n",
468 load_baudrate);
469 udelay(50000);
470 gd->baudrate = load_baudrate;
471 serial_setbrg ();
472 udelay(50000);
473 for (;;) {
474 if (getc() == '\r')
475 break;
476 }
477 }
478
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200479 if (strcmp(argv[0],"loady")==0) {
480 printf ("## Ready for binary (ymodem) download "
481 "to 0x%08lX at %d bps...\n",
482 offset,
483 load_baudrate);
wdenk8bde7f72003-06-27 21:31:46 +0000484
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200485 addr = load_serial_ymodem (offset);
486
wdenk8bde7f72003-06-27 21:31:46 +0000487 } else {
wdenk8bde7f72003-06-27 21:31:46 +0000488
Markus Klotzbuecherf2841d32006-03-30 13:40:55 +0200489 printf ("## Ready for binary (kermit) download "
490 "to 0x%08lX at %d bps...\n",
491 offset,
492 load_baudrate);
493 addr = load_serial_bin (offset);
494
495 if (addr == ~0) {
496 load_addr = 0;
497 printf ("## Binary (kermit) download aborted\n");
498 rcode = 1;
499 } else {
500 printf ("## Start Addr = 0x%08lX\n", addr);
501 load_addr = addr;
502 }
503 }
wdenk8bde7f72003-06-27 21:31:46 +0000504 if (load_baudrate != current_baudrate) {
505 printf ("## Switch baudrate to %d bps and press ESC ...\n",
506 current_baudrate);
507 udelay (50000);
508 gd->baudrate = current_baudrate;
509 serial_setbrg ();
510 udelay (50000);
511 for (;;) {
512 if (getc() == 0x1B) /* ESC */
513 break;
514 }
515 }
516
517#ifdef CONFIG_AUTOSCRIPT
518 if (load_addr) {
519 char *s;
520
521 if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) {
522 printf("Running autoscript at addr 0x%08lX ...\n", load_addr);
523 rcode = autoscript (load_addr);
524 }
525 }
526#endif
527 return rcode;
528}
529
530
531static ulong load_serial_bin (ulong offset)
532{
533 int size, i;
534 char buf[32];
535
536 set_kerm_bin_mode ((ulong *) offset);
537 size = k_recv ();
538
539 /*
540 * Gather any trailing characters (for instance, the ^D which
541 * is sent by 'cu' after sending a file), and give the
542 * box some time (100 * 1 ms)
543 */
544 for (i=0; i<100; ++i) {
wdenk232c1502004-03-12 00:14:09 +0000545 if (tstc()) {
546 (void) getc();
wdenk8bde7f72003-06-27 21:31:46 +0000547 }
548 udelay(1000);
549 }
550
551 flush_cache (offset, size);
552
553 printf("## Total Size = 0x%08x = %d Bytes\n", size, size);
554 sprintf(buf, "%X", size);
555 setenv("filesize", buf);
556
557 return offset;
558}
559
560void send_pad (void)
561{
562 int count = his_pad_count;
563
564 while (count-- > 0)
wdenk232c1502004-03-12 00:14:09 +0000565 putc (his_pad_char);
wdenk8bde7f72003-06-27 21:31:46 +0000566}
567
568/* converts escaped kermit char to binary char */
569char ktrans (char in)
570{
571 if ((in & 0x60) == 0x40) {
572 return (char) (in & ~0x40);
573 } else if ((in & 0x7f) == 0x3f) {
574 return (char) (in | 0x40);
575 } else
576 return in;
577}
578
579int chk1 (char *buffer)
580{
581 int total = 0;
582
583 while (*buffer) {
584 total += *buffer++;
585 }
586 return (int) ((total + ((total >> 6) & 0x03)) & 0x3f);
587}
588
589void s1_sendpacket (char *packet)
590{
591 send_pad ();
592 while (*packet) {
wdenk232c1502004-03-12 00:14:09 +0000593 putc (*packet++);
wdenk8bde7f72003-06-27 21:31:46 +0000594 }
595}
596
597static char a_b[24];
598void send_ack (int n)
599{
600 a_b[0] = START_CHAR;
601 a_b[1] = tochar (3);
602 a_b[2] = tochar (n);
603 a_b[3] = ACK_TYPE;
604 a_b[4] = '\0';
605 a_b[4] = tochar (chk1 (&a_b[1]));
606 a_b[5] = his_eol;
607 a_b[6] = '\0';
608 s1_sendpacket (a_b);
609}
610
611void send_nack (int n)
612{
613 a_b[0] = START_CHAR;
614 a_b[1] = tochar (3);
615 a_b[2] = tochar (n);
616 a_b[3] = NACK_TYPE;
617 a_b[4] = '\0';
618 a_b[4] = tochar (chk1 (&a_b[1]));
619 a_b[5] = his_eol;
620 a_b[6] = '\0';
621 s1_sendpacket (a_b);
622}
623
624
625/* os_data_* takes an OS Open image and puts it into memory, and
626 puts the boot header in an array named os_data_header
627
628 if image is binary, no header is stored in os_data_header.
629*/
630void (*os_data_init) (void);
631void (*os_data_char) (char new_char);
632static int os_data_state, os_data_state_saved;
633int os_data_count;
634static int os_data_count_saved;
635static char *os_data_addr, *os_data_addr_saved;
636static char *bin_start_address;
637int os_data_header[8];
638static void bin_data_init (void)
639{
640 os_data_state = 0;
641 os_data_count = 0;
642 os_data_addr = bin_start_address;
643}
644static void os_data_save (void)
645{
646 os_data_state_saved = os_data_state;
647 os_data_count_saved = os_data_count;
648 os_data_addr_saved = os_data_addr;
649}
650static void os_data_restore (void)
651{
652 os_data_state = os_data_state_saved;
653 os_data_count = os_data_count_saved;
654 os_data_addr = os_data_addr_saved;
655}
656static void bin_data_char (char new_char)
657{
658 switch (os_data_state) {
659 case 0: /* data */
660 *os_data_addr++ = new_char;
661 --os_data_count;
662 break;
663 }
664}
665static void set_kerm_bin_mode (unsigned long *addr)
666{
667 bin_start_address = (char *) addr;
668 os_data_init = bin_data_init;
669 os_data_char = bin_data_char;
670}
671
672
673/* k_data_* simply handles the kermit escape translations */
674static int k_data_escape, k_data_escape_saved;
675void k_data_init (void)
676{
677 k_data_escape = 0;
678 os_data_init ();
679}
680void k_data_save (void)
681{
682 k_data_escape_saved = k_data_escape;
683 os_data_save ();
684}
685void k_data_restore (void)
686{
687 k_data_escape = k_data_escape_saved;
688 os_data_restore ();
689}
690void k_data_char (char new_char)
691{
692 if (k_data_escape) {
693 /* last char was escape - translate this character */
694 os_data_char (ktrans (new_char));
695 k_data_escape = 0;
696 } else {
697 if (new_char == his_quote) {
698 /* this char is escape - remember */
699 k_data_escape = 1;
700 } else {
701 /* otherwise send this char as-is */
702 os_data_char (new_char);
703 }
704 }
705}
706
707#define SEND_DATA_SIZE 20
708char send_parms[SEND_DATA_SIZE];
709char *send_ptr;
710
711/* handle_send_packet interprits the protocol info and builds and
712 sends an appropriate ack for what we can do */
713void handle_send_packet (int n)
714{
715 int length = 3;
716 int bytes;
717
718 /* initialize some protocol parameters */
719 his_eol = END_CHAR; /* default end of line character */
720 his_pad_count = 0;
721 his_pad_char = '\0';
722 his_quote = K_ESCAPE;
723
724 /* ignore last character if it filled the buffer */
725 if (send_ptr == &send_parms[SEND_DATA_SIZE - 1])
726 --send_ptr;
727 bytes = send_ptr - send_parms; /* how many bytes we'll process */
728 do {
729 if (bytes-- <= 0)
730 break;
731 /* handle MAXL - max length */
732 /* ignore what he says - most I'll take (here) is 94 */
733 a_b[++length] = tochar (94);
734 if (bytes-- <= 0)
735 break;
736 /* handle TIME - time you should wait for my packets */
737 /* ignore what he says - don't wait for my ack longer than 1 second */
738 a_b[++length] = tochar (1);
739 if (bytes-- <= 0)
740 break;
741 /* handle NPAD - number of pad chars I need */
742 /* remember what he says - I need none */
743 his_pad_count = untochar (send_parms[2]);
744 a_b[++length] = tochar (0);
745 if (bytes-- <= 0)
746 break;
747 /* handle PADC - pad chars I need */
748 /* remember what he says - I need none */
749 his_pad_char = ktrans (send_parms[3]);
750 a_b[++length] = 0x40; /* He should ignore this */
751 if (bytes-- <= 0)
752 break;
753 /* handle EOL - end of line he needs */
754 /* remember what he says - I need CR */
755 his_eol = untochar (send_parms[4]);
756 a_b[++length] = tochar (END_CHAR);
757 if (bytes-- <= 0)
758 break;
759 /* handle QCTL - quote control char he'll use */
760 /* remember what he says - I'll use '#' */
761 his_quote = send_parms[5];
762 a_b[++length] = '#';
763 if (bytes-- <= 0)
764 break;
765 /* handle QBIN - 8-th bit prefixing */
766 /* ignore what he says - I refuse */
767 a_b[++length] = 'N';
768 if (bytes-- <= 0)
769 break;
770 /* handle CHKT - the clock check type */
771 /* ignore what he says - I do type 1 (for now) */
772 a_b[++length] = '1';
773 if (bytes-- <= 0)
774 break;
775 /* handle REPT - the repeat prefix */
776 /* ignore what he says - I refuse (for now) */
777 a_b[++length] = 'N';
778 if (bytes-- <= 0)
779 break;
780 /* handle CAPAS - the capabilities mask */
781 /* ignore what he says - I only do long packets - I don't do windows */
782 a_b[++length] = tochar (2); /* only long packets */
783 a_b[++length] = tochar (0); /* no windows */
784 a_b[++length] = tochar (94); /* large packet msb */
785 a_b[++length] = tochar (94); /* large packet lsb */
786 } while (0);
787
788 a_b[0] = START_CHAR;
789 a_b[1] = tochar (length);
790 a_b[2] = tochar (n);
791 a_b[3] = ACK_TYPE;
792 a_b[++length] = '\0';
793 a_b[length] = tochar (chk1 (&a_b[1]));
794 a_b[++length] = his_eol;
795 a_b[++length] = '\0';
796 s1_sendpacket (a_b);
797}
798
799/* k_recv receives a OS Open image file over kermit line */
800static int k_recv (void)
801{
802 char new_char;
803 char k_state, k_state_saved;
804 int sum;
805 int done;
806 int length;
807 int n, last_n;
808 int z = 0;
809 int len_lo, len_hi;
810
811 /* initialize some protocol parameters */
812 his_eol = END_CHAR; /* default end of line character */
813 his_pad_count = 0;
814 his_pad_char = '\0';
815 his_quote = K_ESCAPE;
816
817 /* initialize the k_recv and k_data state machine */
818 done = 0;
819 k_state = 0;
820 k_data_init ();
821 k_state_saved = k_state;
822 k_data_save ();
823 n = 0; /* just to get rid of a warning */
824 last_n = -1;
825
826 /* expect this "type" sequence (but don't check):
827 S: send initiate
828 F: file header
829 D: data (multiple)
830 Z: end of file
831 B: break transmission
832 */
833
834 /* enter main loop */
835 while (!done) {
836 /* set the send packet pointer to begining of send packet parms */
837 send_ptr = send_parms;
838
839 /* With each packet, start summing the bytes starting with the length.
840 Save the current sequence number.
841 Note the type of the packet.
842 If a character less than SPACE (0x20) is received - error.
843 */
844
845#if 0
846 /* OLD CODE, Prior to checking sequence numbers */
847 /* first have all state machines save current states */
848 k_state_saved = k_state;
849 k_data_save ();
850#endif
851
852 /* get a packet */
853 /* wait for the starting character or ^C */
854 for (;;) {
wdenk232c1502004-03-12 00:14:09 +0000855 switch (getc ()) {
wdenk8bde7f72003-06-27 21:31:46 +0000856 case START_CHAR: /* start packet */
857 goto START;
858 case ETX_CHAR: /* ^C waiting for packet */
859 return (0);
860 default:
861 ;
862 }
863 }
864START:
865 /* get length of packet */
866 sum = 0;
wdenk232c1502004-03-12 00:14:09 +0000867 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000868 if ((new_char & 0xE0) == 0)
869 goto packet_error;
870 sum += new_char & 0xff;
871 length = untochar (new_char);
872 /* get sequence number */
wdenk232c1502004-03-12 00:14:09 +0000873 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000874 if ((new_char & 0xE0) == 0)
875 goto packet_error;
876 sum += new_char & 0xff;
877 n = untochar (new_char);
878 --length;
879
880 /* NEW CODE - check sequence numbers for retried packets */
881 /* Note - this new code assumes that the sequence number is correctly
882 * received. Handling an invalid sequence number adds another layer
883 * of complexity that may not be needed - yet! At this time, I'm hoping
884 * that I don't need to buffer the incoming data packets and can write
885 * the data into memory in real time.
886 */
887 if (n == last_n) {
888 /* same sequence number, restore the previous state */
889 k_state = k_state_saved;
890 k_data_restore ();
891 } else {
892 /* new sequence number, checkpoint the download */
893 last_n = n;
894 k_state_saved = k_state;
895 k_data_save ();
896 }
897 /* END NEW CODE */
898
899 /* get packet type */
wdenk232c1502004-03-12 00:14:09 +0000900 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000901 if ((new_char & 0xE0) == 0)
902 goto packet_error;
903 sum += new_char & 0xff;
904 k_state = new_char;
905 --length;
906 /* check for extended length */
907 if (length == -2) {
908 /* (length byte was 0, decremented twice) */
909 /* get the two length bytes */
wdenk232c1502004-03-12 00:14:09 +0000910 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000911 if ((new_char & 0xE0) == 0)
912 goto packet_error;
913 sum += new_char & 0xff;
914 len_hi = untochar (new_char);
wdenk232c1502004-03-12 00:14:09 +0000915 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000916 if ((new_char & 0xE0) == 0)
917 goto packet_error;
918 sum += new_char & 0xff;
919 len_lo = untochar (new_char);
920 length = len_hi * 95 + len_lo;
921 /* check header checksum */
wdenk232c1502004-03-12 00:14:09 +0000922 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000923 if ((new_char & 0xE0) == 0)
924 goto packet_error;
925 if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f))
926 goto packet_error;
927 sum += new_char & 0xff;
928/* --length; */ /* new length includes only data and block check to come */
929 }
930 /* bring in rest of packet */
931 while (length > 1) {
wdenk232c1502004-03-12 00:14:09 +0000932 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000933 if ((new_char & 0xE0) == 0)
934 goto packet_error;
935 sum += new_char & 0xff;
936 --length;
937 if (k_state == DATA_TYPE) {
938 /* pass on the data if this is a data packet */
939 k_data_char (new_char);
940 } else if (k_state == SEND_TYPE) {
941 /* save send pack in buffer as is */
942 *send_ptr++ = new_char;
943 /* if too much data, back off the pointer */
944 if (send_ptr >= &send_parms[SEND_DATA_SIZE])
945 --send_ptr;
946 }
947 }
948 /* get and validate checksum character */
wdenk232c1502004-03-12 00:14:09 +0000949 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000950 if ((new_char & 0xE0) == 0)
951 goto packet_error;
952 if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f))
953 goto packet_error;
954 /* get END_CHAR */
wdenk232c1502004-03-12 00:14:09 +0000955 new_char = getc ();
wdenk8bde7f72003-06-27 21:31:46 +0000956 if (new_char != END_CHAR) {
957 packet_error:
958 /* restore state machines */
959 k_state = k_state_saved;
960 k_data_restore ();
961 /* send a negative acknowledge packet in */
962 send_nack (n);
963 } else if (k_state == SEND_TYPE) {
964 /* crack the protocol parms, build an appropriate ack packet */
965 handle_send_packet (n);
966 } else {
967 /* send simple acknowledge packet in */
968 send_ack (n);
969 /* quit if end of transmission */
970 if (k_state == BREAK_TYPE)
971 done = 1;
972 }
973 ++z;
974 }
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;
1004#ifndef CFG_NO_FLASH
1005 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
wdenk8bde7f72003-06-27 21:31:46 +00001039#endif /* CFG_CMD_LOADB */
1040
1041/* -------------------------------------------------------------------- */
1042
1043#if (CONFIG_COMMANDS & CFG_CMD_LOADS)
1044
1045#ifdef CFG_LOADS_BAUD_CHANGE
wdenk0d498392003-07-01 21:06:45 +00001046U_BOOT_CMD(
1047 loads, 3, 0, do_load_serial,
wdenk8bde7f72003-06-27 21:31:46 +00001048 "loads - load S-Record file over serial line\n",
1049 "[ off ] [ baud ]\n"
1050 " - load S-Record file over serial line"
1051 " with offset 'off' and baudrate 'baud'\n"
1052);
1053
1054#else /* ! CFG_LOADS_BAUD_CHANGE */
wdenk0d498392003-07-01 21:06:45 +00001055U_BOOT_CMD(
1056 loads, 2, 0, do_load_serial,
wdenk8bde7f72003-06-27 21:31:46 +00001057 "loads - load S-Record file over serial line\n",
1058 "[ off ]\n"
1059 " - load S-Record file over serial line with offset 'off'\n"
1060);
1061#endif /* CFG_LOADS_BAUD_CHANGE */
1062
1063/*
1064 * SAVES always requires LOADS support, but not vice versa
1065 */
1066
1067
1068#if (CONFIG_COMMANDS & CFG_CMD_SAVES)
1069#ifdef CFG_LOADS_BAUD_CHANGE
wdenk0d498392003-07-01 21:06:45 +00001070U_BOOT_CMD(
1071 saves, 4, 0, do_save_serial,
wdenk8bde7f72003-06-27 21:31:46 +00001072 "saves - save S-Record file over serial line\n",
1073 "[ off ] [size] [ baud ]\n"
1074 " - save S-Record file over serial line"
1075 " with offset 'off', size 'size' and baudrate 'baud'\n"
1076);
1077#else /* ! CFG_LOADS_BAUD_CHANGE */
wdenk0d498392003-07-01 21:06:45 +00001078U_BOOT_CMD(
1079 saves, 3, 0, do_save_serial,
wdenk8bde7f72003-06-27 21:31:46 +00001080 "saves - save S-Record file over serial line\n",
1081 "[ off ] [size]\n"
1082 " - save S-Record file over serial line with offset 'off' and size 'size'\n"
1083);
1084#endif /* CFG_LOADS_BAUD_CHANGE */
1085#endif /* CFG_CMD_SAVES */
1086#endif /* CFG_CMD_LOADS */
1087
1088
1089#if (CONFIG_COMMANDS & CFG_CMD_LOADB)
wdenk0d498392003-07-01 21:06:45 +00001090U_BOOT_CMD(
1091 loadb, 3, 0, do_load_serial_bin,
wdenk8bde7f72003-06-27 21:31:46 +00001092 "loadb - load binary file over serial line (kermit mode)\n",
1093 "[ 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,
1100 "loady - load binary file over serial line (ymodem mode)\n",
1101 "[ off ] [ baud ]\n"
1102 " - load binary file over serial line"
1103 " with offset 'off' and baudrate 'baud'\n"
1104);
1105
wdenk8bde7f72003-06-27 21:31:46 +00001106#endif /* CFG_CMD_LOADB */
1107
1108/* -------------------------------------------------------------------- */
1109
1110#if (CONFIG_COMMANDS & CFG_CMD_HWFLOW)
1111int 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
1122 printf("Usage: %s\n", cmdtp->usage);
1123 }
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,
wdenk8bde7f72003-06-27 21:31:46 +00001132 "hwflow - turn the harwdare flow control on/off\n",
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
1136#endif /* CFG_CMD_HWFLOW */