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Commit | Line | Data |
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8bde7f77 | 1 | /* |
232c150a | 2 | * (C) Copyright 2000-2004 |
8bde7f77 WD |
3 | * 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> | |
8bde7f77 WD |
29 | #include <s_record.h> |
30 | #include <net.h> | |
27b207fd | 31 | #include <exports.h> |
8bde7f77 WD |
32 | |
33 | ||
34 | #if (CONFIG_COMMANDS & CFG_CMD_LOADS) | |
35 | static ulong load_serial (ulong offset); | |
36 | static int read_record (char *buf, ulong len); | |
37 | # if (CONFIG_COMMANDS & CFG_CMD_SAVES) | |
38 | static int save_serial (ulong offset, ulong size); | |
39 | static int write_record (char *buf); | |
40 | # endif /* CFG_CMD_SAVES */ | |
41 | ||
42 | static int do_echo = 1; | |
43 | #endif /* CFG_CMD_LOADS */ | |
44 | ||
45 | /* -------------------------------------------------------------------- */ | |
46 | ||
47 | #if (CONFIG_COMMANDS & CFG_CMD_LOADS) | |
48 | int do_load_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
49 | { | |
50 | ulong offset = 0; | |
51 | ulong addr; | |
52 | int i; | |
53 | char *env_echo; | |
54 | int rcode = 0; | |
55 | #ifdef CFG_LOADS_BAUD_CHANGE | |
56 | DECLARE_GLOBAL_DATA_PTR; | |
57 | int load_baudrate, current_baudrate; | |
58 | ||
59 | load_baudrate = current_baudrate = gd->baudrate; | |
60 | #endif | |
61 | ||
62 | if (((env_echo = getenv("loads_echo")) != NULL) && (*env_echo == '1')) { | |
63 | do_echo = 1; | |
64 | } else { | |
65 | do_echo = 0; | |
66 | } | |
67 | ||
68 | #ifdef CFG_LOADS_BAUD_CHANGE | |
69 | if (argc >= 2) { | |
70 | offset = simple_strtoul(argv[1], NULL, 16); | |
71 | } | |
72 | if (argc == 3) { | |
73 | load_baudrate = (int)simple_strtoul(argv[2], NULL, 10); | |
74 | ||
75 | /* default to current baudrate */ | |
76 | if (load_baudrate == 0) | |
77 | load_baudrate = current_baudrate; | |
78 | } | |
79 | if (load_baudrate != current_baudrate) { | |
80 | printf ("## Switch baudrate to %d bps and press ENTER ...\n", | |
81 | load_baudrate); | |
82 | udelay(50000); | |
83 | gd->baudrate = load_baudrate; | |
84 | serial_setbrg (); | |
85 | udelay(50000); | |
86 | for (;;) { | |
87 | if (getc() == '\r') | |
88 | break; | |
89 | } | |
90 | } | |
91 | #else /* ! CFG_LOADS_BAUD_CHANGE */ | |
92 | if (argc == 2) { | |
93 | offset = simple_strtoul(argv[1], NULL, 16); | |
94 | } | |
95 | #endif /* CFG_LOADS_BAUD_CHANGE */ | |
96 | ||
97 | printf ("## Ready for S-Record download ...\n"); | |
98 | ||
99 | addr = load_serial (offset); | |
100 | ||
101 | /* | |
102 | * Gather any trailing characters (for instance, the ^D which | |
103 | * is sent by 'cu' after sending a file), and give the | |
104 | * box some time (100 * 1 ms) | |
105 | */ | |
106 | for (i=0; i<100; ++i) { | |
232c150a WD |
107 | if (tstc()) { |
108 | (void) getc(); | |
8bde7f77 WD |
109 | } |
110 | udelay(1000); | |
111 | } | |
112 | ||
113 | if (addr == ~0) { | |
114 | printf ("## S-Record download aborted\n"); | |
115 | rcode = 1; | |
116 | } else { | |
117 | printf ("## Start Addr = 0x%08lX\n", addr); | |
118 | load_addr = addr; | |
119 | } | |
120 | ||
121 | #ifdef CFG_LOADS_BAUD_CHANGE | |
122 | if (load_baudrate != current_baudrate) { | |
123 | printf ("## Switch baudrate to %d bps and press ESC ...\n", | |
124 | current_baudrate); | |
125 | udelay (50000); | |
126 | gd->baudrate = current_baudrate; | |
127 | serial_setbrg (); | |
128 | udelay (50000); | |
129 | for (;;) { | |
130 | if (getc() == 0x1B) /* ESC */ | |
131 | break; | |
132 | } | |
133 | } | |
134 | #endif | |
135 | return rcode; | |
136 | } | |
137 | ||
138 | static ulong | |
139 | load_serial (ulong offset) | |
140 | { | |
141 | char record[SREC_MAXRECLEN + 1]; /* buffer for one S-Record */ | |
142 | char binbuf[SREC_MAXBINLEN]; /* buffer for binary data */ | |
143 | int binlen; /* no. of data bytes in S-Rec. */ | |
144 | int type; /* return code for record type */ | |
145 | ulong addr; /* load address from S-Record */ | |
146 | ulong size; /* number of bytes transferred */ | |
147 | char buf[32]; | |
148 | ulong store_addr; | |
149 | ulong start_addr = ~0; | |
150 | ulong end_addr = 0; | |
151 | int line_count = 0; | |
152 | ||
153 | while (read_record(record, SREC_MAXRECLEN + 1) >= 0) { | |
154 | type = srec_decode (record, &binlen, &addr, binbuf); | |
155 | ||
156 | if (type < 0) { | |
157 | return (~0); /* Invalid S-Record */ | |
158 | } | |
159 | ||
160 | switch (type) { | |
161 | case SREC_DATA2: | |
162 | case SREC_DATA3: | |
163 | case SREC_DATA4: | |
164 | store_addr = addr + offset; | |
165 | #ifndef CFG_NO_FLASH | |
166 | if (addr2info(store_addr)) { | |
167 | int rc; | |
168 | ||
169 | rc = flash_write((uchar *)binbuf,store_addr,binlen); | |
170 | if (rc != 0) { | |
171 | flash_perror (rc); | |
172 | return (~0); | |
173 | } | |
174 | } else | |
175 | #endif | |
176 | { | |
177 | memcpy ((char *)(store_addr), binbuf, binlen); | |
178 | } | |
179 | if ((store_addr) < start_addr) | |
180 | start_addr = store_addr; | |
181 | if ((store_addr + binlen - 1) > end_addr) | |
182 | end_addr = store_addr + binlen - 1; | |
183 | break; | |
184 | case SREC_END2: | |
185 | case SREC_END3: | |
186 | case SREC_END4: | |
187 | udelay (10000); | |
188 | size = end_addr - start_addr + 1; | |
189 | printf ("\n" | |
190 | "## First Load Addr = 0x%08lX\n" | |
191 | "## Last Load Addr = 0x%08lX\n" | |
192 | "## Total Size = 0x%08lX = %ld Bytes\n", | |
193 | start_addr, end_addr, size, size | |
194 | ); | |
3f85ce27 | 195 | flush_cache (start_addr, size); |
8bde7f77 WD |
196 | sprintf(buf, "%lX", size); |
197 | setenv("filesize", buf); | |
198 | return (addr); | |
199 | case SREC_START: | |
200 | break; | |
201 | default: | |
202 | break; | |
203 | } | |
204 | if (!do_echo) { /* print a '.' every 100 lines */ | |
205 | if ((++line_count % 100) == 0) | |
206 | putc ('.'); | |
207 | } | |
208 | } | |
209 | ||
210 | return (~0); /* Download aborted */ | |
211 | } | |
212 | ||
213 | static int | |
214 | read_record (char *buf, ulong len) | |
215 | { | |
27b207fd | 216 | DECLARE_GLOBAL_DATA_PTR; |
8bde7f77 WD |
217 | char *p; |
218 | char c; | |
219 | ||
220 | --len; /* always leave room for terminating '\0' byte */ | |
221 | ||
222 | for (p=buf; p < buf+len; ++p) { | |
232c150a | 223 | c = getc(); /* read character */ |
8bde7f77 | 224 | if (do_echo) |
232c150a | 225 | putc (c); /* ... and echo it */ |
8bde7f77 WD |
226 | |
227 | switch (c) { | |
228 | case '\r': | |
229 | case '\n': | |
230 | *p = '\0'; | |
231 | return (p - buf); | |
232 | case '\0': | |
233 | case 0x03: /* ^C - Control C */ | |
234 | return (-1); | |
235 | default: | |
236 | *p = c; | |
237 | } | |
238 | ||
239 | /* Check for the console hangup (if any different from serial) */ | |
232c150a | 240 | if (gd->jt[XF_getc] != getc) { |
8bde7f77 WD |
241 | if (ctrlc()) { |
242 | return (-1); | |
243 | } | |
244 | } | |
8bde7f77 WD |
245 | } |
246 | ||
247 | /* line too long - truncate */ | |
248 | *p = '\0'; | |
249 | return (p - buf); | |
250 | } | |
251 | ||
252 | #if (CONFIG_COMMANDS & CFG_CMD_SAVES) | |
253 | ||
254 | int do_save_serial (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
255 | { | |
256 | ulong offset = 0; | |
257 | ulong size = 0; | |
258 | #ifdef CFG_LOADS_BAUD_CHANGE | |
259 | DECLARE_GLOBAL_DATA_PTR; | |
260 | int save_baudrate, current_baudrate; | |
261 | ||
262 | save_baudrate = current_baudrate = gd->baudrate; | |
263 | #endif | |
264 | ||
265 | if (argc >= 2) { | |
266 | offset = simple_strtoul(argv[1], NULL, 16); | |
267 | } | |
268 | #ifdef CFG_LOADS_BAUD_CHANGE | |
269 | if (argc >= 3) { | |
270 | size = simple_strtoul(argv[2], NULL, 16); | |
271 | } | |
272 | if (argc == 4) { | |
273 | save_baudrate = (int)simple_strtoul(argv[3], NULL, 10); | |
274 | ||
275 | /* default to current baudrate */ | |
276 | if (save_baudrate == 0) | |
277 | save_baudrate = current_baudrate; | |
278 | } | |
279 | if (save_baudrate != current_baudrate) { | |
280 | printf ("## Switch baudrate to %d bps and press ENTER ...\n", | |
281 | save_baudrate); | |
282 | udelay(50000); | |
283 | gd->baudrate = save_baudrate; | |
284 | serial_setbrg (); | |
285 | udelay(50000); | |
286 | for (;;) { | |
287 | if (getc() == '\r') | |
288 | break; | |
289 | } | |
290 | } | |
291 | #else /* ! CFG_LOADS_BAUD_CHANGE */ | |
292 | if (argc == 3) { | |
293 | size = simple_strtoul(argv[2], NULL, 16); | |
294 | } | |
295 | #endif /* CFG_LOADS_BAUD_CHANGE */ | |
296 | ||
297 | printf ("## Ready for S-Record upload, press ENTER to proceed ...\n"); | |
298 | for (;;) { | |
299 | if (getc() == '\r') | |
300 | break; | |
301 | } | |
302 | if(save_serial (offset, size)) { | |
303 | printf ("## S-Record upload aborted\n"); | |
304 | } else { | |
305 | printf ("## S-Record upload complete\n"); | |
306 | } | |
307 | #ifdef CFG_LOADS_BAUD_CHANGE | |
308 | if (save_baudrate != current_baudrate) { | |
309 | printf ("## Switch baudrate to %d bps and press ESC ...\n", | |
310 | (int)current_baudrate); | |
311 | udelay (50000); | |
312 | gd->baudrate = current_baudrate; | |
313 | serial_setbrg (); | |
314 | udelay (50000); | |
315 | for (;;) { | |
316 | if (getc() == 0x1B) /* ESC */ | |
317 | break; | |
318 | } | |
319 | } | |
320 | #endif | |
321 | return 0; | |
322 | } | |
323 | ||
324 | #define SREC3_START "S0030000FC\n" | |
325 | #define SREC3_FORMAT "S3%02X%08lX%s%02X\n" | |
326 | #define SREC3_END "S70500000000FA\n" | |
327 | #define SREC_BYTES_PER_RECORD 16 | |
328 | ||
329 | static int save_serial (ulong address, ulong count) | |
330 | { | |
331 | int i, c, reclen, checksum, length; | |
332 | char *hex = "0123456789ABCDEF"; | |
333 | char record[2*SREC_BYTES_PER_RECORD+16]; /* buffer for one S-Record */ | |
334 | char data[2*SREC_BYTES_PER_RECORD+1]; /* buffer for hex data */ | |
335 | ||
336 | reclen = 0; | |
337 | checksum = 0; | |
338 | ||
339 | if(write_record(SREC3_START)) /* write the header */ | |
340 | return (-1); | |
341 | do { | |
342 | if(count) { /* collect hex data in the buffer */ | |
343 | c = *(volatile uchar*)(address + reclen); /* get one byte */ | |
344 | checksum += c; /* accumulate checksum */ | |
345 | data[2*reclen] = hex[(c>>4)&0x0f]; | |
346 | data[2*reclen+1] = hex[c & 0x0f]; | |
347 | data[2*reclen+2] = '\0'; | |
348 | ++reclen; | |
349 | --count; | |
350 | } | |
351 | if(reclen == SREC_BYTES_PER_RECORD || count == 0) { | |
352 | /* enough data collected for one record: dump it */ | |
353 | if(reclen) { /* build & write a data record: */ | |
354 | /* address + data + checksum */ | |
355 | length = 4 + reclen + 1; | |
356 | ||
357 | /* accumulate length bytes into checksum */ | |
358 | for(i = 0; i < 2; i++) | |
359 | checksum += (length >> (8*i)) & 0xff; | |
360 | ||
361 | /* accumulate address bytes into checksum: */ | |
362 | for(i = 0; i < 4; i++) | |
363 | checksum += (address >> (8*i)) & 0xff; | |
364 | ||
365 | /* make proper checksum byte: */ | |
366 | checksum = ~checksum & 0xff; | |
367 | ||
368 | /* output one record: */ | |
369 | sprintf(record, SREC3_FORMAT, length, address, data, checksum); | |
370 | if(write_record(record)) | |
371 | return (-1); | |
372 | } | |
373 | address += reclen; /* increment address */ | |
374 | checksum = 0; | |
375 | reclen = 0; | |
376 | } | |
377 | } | |
378 | while(count); | |
379 | if(write_record(SREC3_END)) /* write the final record */ | |
380 | return (-1); | |
381 | return(0); | |
382 | } | |
383 | ||
384 | static int | |
385 | write_record (char *buf) | |
386 | { | |
387 | char c; | |
388 | ||
389 | while((c = *buf++)) | |
232c150a | 390 | putc(c); |
8bde7f77 WD |
391 | |
392 | /* Check for the console hangup (if any different from serial) */ | |
393 | ||
394 | if (ctrlc()) { | |
395 | return (-1); | |
396 | } | |
397 | return (0); | |
398 | } | |
399 | # endif /* CFG_CMD_SAVES */ | |
400 | ||
401 | #endif /* CFG_CMD_LOADS */ | |
402 | ||
403 | ||
404 | #if (CONFIG_COMMANDS & CFG_CMD_LOADB) /* loadb command (load binary) included */ | |
405 | ||
406 | #define XON_CHAR 17 | |
407 | #define XOFF_CHAR 19 | |
408 | #define START_CHAR 0x01 | |
409 | #define ETX_CHAR 0x03 | |
410 | #define END_CHAR 0x0D | |
411 | #define SPACE 0x20 | |
412 | #define K_ESCAPE 0x23 | |
413 | #define SEND_TYPE 'S' | |
414 | #define DATA_TYPE 'D' | |
415 | #define ACK_TYPE 'Y' | |
416 | #define NACK_TYPE 'N' | |
417 | #define BREAK_TYPE 'B' | |
418 | #define tochar(x) ((char) (((x) + SPACE) & 0xff)) | |
419 | #define untochar(x) ((int) (((x) - SPACE) & 0xff)) | |
420 | ||
421 | extern int os_data_count; | |
422 | extern int os_data_header[8]; | |
423 | ||
424 | static void set_kerm_bin_mode(unsigned long *); | |
425 | static int k_recv(void); | |
426 | static ulong load_serial_bin (ulong offset); | |
427 | ||
428 | ||
429 | char his_eol; /* character he needs at end of packet */ | |
430 | int his_pad_count; /* number of pad chars he needs */ | |
431 | char his_pad_char; /* pad chars he needs */ | |
432 | char his_quote; /* quote chars he'll use */ | |
433 | ||
434 | int do_load_serial_bin (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
435 | { | |
436 | DECLARE_GLOBAL_DATA_PTR; | |
437 | ||
438 | ulong offset = 0; | |
439 | ulong addr; | |
440 | int load_baudrate, current_baudrate; | |
441 | int rcode = 0; | |
442 | char *s; | |
443 | ||
444 | /* pre-set offset from CFG_LOAD_ADDR */ | |
445 | offset = CFG_LOAD_ADDR; | |
446 | ||
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 | ||
478 | printf ("## Ready for binary (kermit) download " | |
479 | "to 0x%08lX at %d bps...\n", | |
480 | offset, | |
27b207fd | 481 | load_baudrate); |
8bde7f77 WD |
482 | addr = load_serial_bin (offset); |
483 | ||
484 | if (addr == ~0) { | |
485 | load_addr = 0; | |
486 | printf ("## Binary (kermit) download aborted\n"); | |
487 | rcode = 1; | |
488 | } else { | |
489 | printf ("## Start Addr = 0x%08lX\n", addr); | |
490 | load_addr = addr; | |
491 | } | |
492 | ||
493 | if (load_baudrate != current_baudrate) { | |
494 | printf ("## Switch baudrate to %d bps and press ESC ...\n", | |
495 | current_baudrate); | |
496 | udelay (50000); | |
497 | gd->baudrate = current_baudrate; | |
498 | serial_setbrg (); | |
499 | udelay (50000); | |
500 | for (;;) { | |
501 | if (getc() == 0x1B) /* ESC */ | |
502 | break; | |
503 | } | |
504 | } | |
505 | ||
506 | #ifdef CONFIG_AUTOSCRIPT | |
507 | if (load_addr) { | |
508 | char *s; | |
509 | ||
510 | if (((s = getenv("autoscript")) != NULL) && (strcmp(s,"yes") == 0)) { | |
511 | printf("Running autoscript at addr 0x%08lX ...\n", load_addr); | |
512 | rcode = autoscript (load_addr); | |
513 | } | |
514 | } | |
515 | #endif | |
516 | return rcode; | |
517 | } | |
518 | ||
519 | ||
520 | static ulong load_serial_bin (ulong offset) | |
521 | { | |
522 | int size, i; | |
523 | char buf[32]; | |
524 | ||
525 | set_kerm_bin_mode ((ulong *) offset); | |
526 | size = k_recv (); | |
527 | ||
528 | /* | |
529 | * Gather any trailing characters (for instance, the ^D which | |
530 | * is sent by 'cu' after sending a file), and give the | |
531 | * box some time (100 * 1 ms) | |
532 | */ | |
533 | for (i=0; i<100; ++i) { | |
232c150a WD |
534 | if (tstc()) { |
535 | (void) getc(); | |
8bde7f77 WD |
536 | } |
537 | udelay(1000); | |
538 | } | |
539 | ||
540 | flush_cache (offset, size); | |
541 | ||
542 | printf("## Total Size = 0x%08x = %d Bytes\n", size, size); | |
543 | sprintf(buf, "%X", size); | |
544 | setenv("filesize", buf); | |
545 | ||
546 | return offset; | |
547 | } | |
548 | ||
549 | void send_pad (void) | |
550 | { | |
551 | int count = his_pad_count; | |
552 | ||
553 | while (count-- > 0) | |
232c150a | 554 | putc (his_pad_char); |
8bde7f77 WD |
555 | } |
556 | ||
557 | /* converts escaped kermit char to binary char */ | |
558 | char ktrans (char in) | |
559 | { | |
560 | if ((in & 0x60) == 0x40) { | |
561 | return (char) (in & ~0x40); | |
562 | } else if ((in & 0x7f) == 0x3f) { | |
563 | return (char) (in | 0x40); | |
564 | } else | |
565 | return in; | |
566 | } | |
567 | ||
568 | int chk1 (char *buffer) | |
569 | { | |
570 | int total = 0; | |
571 | ||
572 | while (*buffer) { | |
573 | total += *buffer++; | |
574 | } | |
575 | return (int) ((total + ((total >> 6) & 0x03)) & 0x3f); | |
576 | } | |
577 | ||
578 | void s1_sendpacket (char *packet) | |
579 | { | |
580 | send_pad (); | |
581 | while (*packet) { | |
232c150a | 582 | putc (*packet++); |
8bde7f77 WD |
583 | } |
584 | } | |
585 | ||
586 | static char a_b[24]; | |
587 | void send_ack (int n) | |
588 | { | |
589 | a_b[0] = START_CHAR; | |
590 | a_b[1] = tochar (3); | |
591 | a_b[2] = tochar (n); | |
592 | a_b[3] = ACK_TYPE; | |
593 | a_b[4] = '\0'; | |
594 | a_b[4] = tochar (chk1 (&a_b[1])); | |
595 | a_b[5] = his_eol; | |
596 | a_b[6] = '\0'; | |
597 | s1_sendpacket (a_b); | |
598 | } | |
599 | ||
600 | void send_nack (int n) | |
601 | { | |
602 | a_b[0] = START_CHAR; | |
603 | a_b[1] = tochar (3); | |
604 | a_b[2] = tochar (n); | |
605 | a_b[3] = NACK_TYPE; | |
606 | a_b[4] = '\0'; | |
607 | a_b[4] = tochar (chk1 (&a_b[1])); | |
608 | a_b[5] = his_eol; | |
609 | a_b[6] = '\0'; | |
610 | s1_sendpacket (a_b); | |
611 | } | |
612 | ||
613 | ||
614 | /* os_data_* takes an OS Open image and puts it into memory, and | |
615 | puts the boot header in an array named os_data_header | |
616 | ||
617 | if image is binary, no header is stored in os_data_header. | |
618 | */ | |
619 | void (*os_data_init) (void); | |
620 | void (*os_data_char) (char new_char); | |
621 | static int os_data_state, os_data_state_saved; | |
622 | int os_data_count; | |
623 | static int os_data_count_saved; | |
624 | static char *os_data_addr, *os_data_addr_saved; | |
625 | static char *bin_start_address; | |
626 | int os_data_header[8]; | |
627 | static void bin_data_init (void) | |
628 | { | |
629 | os_data_state = 0; | |
630 | os_data_count = 0; | |
631 | os_data_addr = bin_start_address; | |
632 | } | |
633 | static void os_data_save (void) | |
634 | { | |
635 | os_data_state_saved = os_data_state; | |
636 | os_data_count_saved = os_data_count; | |
637 | os_data_addr_saved = os_data_addr; | |
638 | } | |
639 | static void os_data_restore (void) | |
640 | { | |
641 | os_data_state = os_data_state_saved; | |
642 | os_data_count = os_data_count_saved; | |
643 | os_data_addr = os_data_addr_saved; | |
644 | } | |
645 | static void bin_data_char (char new_char) | |
646 | { | |
647 | switch (os_data_state) { | |
648 | case 0: /* data */ | |
649 | *os_data_addr++ = new_char; | |
650 | --os_data_count; | |
651 | break; | |
652 | } | |
653 | } | |
654 | static void set_kerm_bin_mode (unsigned long *addr) | |
655 | { | |
656 | bin_start_address = (char *) addr; | |
657 | os_data_init = bin_data_init; | |
658 | os_data_char = bin_data_char; | |
659 | } | |
660 | ||
661 | ||
662 | /* k_data_* simply handles the kermit escape translations */ | |
663 | static int k_data_escape, k_data_escape_saved; | |
664 | void k_data_init (void) | |
665 | { | |
666 | k_data_escape = 0; | |
667 | os_data_init (); | |
668 | } | |
669 | void k_data_save (void) | |
670 | { | |
671 | k_data_escape_saved = k_data_escape; | |
672 | os_data_save (); | |
673 | } | |
674 | void k_data_restore (void) | |
675 | { | |
676 | k_data_escape = k_data_escape_saved; | |
677 | os_data_restore (); | |
678 | } | |
679 | void k_data_char (char new_char) | |
680 | { | |
681 | if (k_data_escape) { | |
682 | /* last char was escape - translate this character */ | |
683 | os_data_char (ktrans (new_char)); | |
684 | k_data_escape = 0; | |
685 | } else { | |
686 | if (new_char == his_quote) { | |
687 | /* this char is escape - remember */ | |
688 | k_data_escape = 1; | |
689 | } else { | |
690 | /* otherwise send this char as-is */ | |
691 | os_data_char (new_char); | |
692 | } | |
693 | } | |
694 | } | |
695 | ||
696 | #define SEND_DATA_SIZE 20 | |
697 | char send_parms[SEND_DATA_SIZE]; | |
698 | char *send_ptr; | |
699 | ||
700 | /* handle_send_packet interprits the protocol info and builds and | |
701 | sends an appropriate ack for what we can do */ | |
702 | void handle_send_packet (int n) | |
703 | { | |
704 | int length = 3; | |
705 | int bytes; | |
706 | ||
707 | /* initialize some protocol parameters */ | |
708 | his_eol = END_CHAR; /* default end of line character */ | |
709 | his_pad_count = 0; | |
710 | his_pad_char = '\0'; | |
711 | his_quote = K_ESCAPE; | |
712 | ||
713 | /* ignore last character if it filled the buffer */ | |
714 | if (send_ptr == &send_parms[SEND_DATA_SIZE - 1]) | |
715 | --send_ptr; | |
716 | bytes = send_ptr - send_parms; /* how many bytes we'll process */ | |
717 | do { | |
718 | if (bytes-- <= 0) | |
719 | break; | |
720 | /* handle MAXL - max length */ | |
721 | /* ignore what he says - most I'll take (here) is 94 */ | |
722 | a_b[++length] = tochar (94); | |
723 | if (bytes-- <= 0) | |
724 | break; | |
725 | /* handle TIME - time you should wait for my packets */ | |
726 | /* ignore what he says - don't wait for my ack longer than 1 second */ | |
727 | a_b[++length] = tochar (1); | |
728 | if (bytes-- <= 0) | |
729 | break; | |
730 | /* handle NPAD - number of pad chars I need */ | |
731 | /* remember what he says - I need none */ | |
732 | his_pad_count = untochar (send_parms[2]); | |
733 | a_b[++length] = tochar (0); | |
734 | if (bytes-- <= 0) | |
735 | break; | |
736 | /* handle PADC - pad chars I need */ | |
737 | /* remember what he says - I need none */ | |
738 | his_pad_char = ktrans (send_parms[3]); | |
739 | a_b[++length] = 0x40; /* He should ignore this */ | |
740 | if (bytes-- <= 0) | |
741 | break; | |
742 | /* handle EOL - end of line he needs */ | |
743 | /* remember what he says - I need CR */ | |
744 | his_eol = untochar (send_parms[4]); | |
745 | a_b[++length] = tochar (END_CHAR); | |
746 | if (bytes-- <= 0) | |
747 | break; | |
748 | /* handle QCTL - quote control char he'll use */ | |
749 | /* remember what he says - I'll use '#' */ | |
750 | his_quote = send_parms[5]; | |
751 | a_b[++length] = '#'; | |
752 | if (bytes-- <= 0) | |
753 | break; | |
754 | /* handle QBIN - 8-th bit prefixing */ | |
755 | /* ignore what he says - I refuse */ | |
756 | a_b[++length] = 'N'; | |
757 | if (bytes-- <= 0) | |
758 | break; | |
759 | /* handle CHKT - the clock check type */ | |
760 | /* ignore what he says - I do type 1 (for now) */ | |
761 | a_b[++length] = '1'; | |
762 | if (bytes-- <= 0) | |
763 | break; | |
764 | /* handle REPT - the repeat prefix */ | |
765 | /* ignore what he says - I refuse (for now) */ | |
766 | a_b[++length] = 'N'; | |
767 | if (bytes-- <= 0) | |
768 | break; | |
769 | /* handle CAPAS - the capabilities mask */ | |
770 | /* ignore what he says - I only do long packets - I don't do windows */ | |
771 | a_b[++length] = tochar (2); /* only long packets */ | |
772 | a_b[++length] = tochar (0); /* no windows */ | |
773 | a_b[++length] = tochar (94); /* large packet msb */ | |
774 | a_b[++length] = tochar (94); /* large packet lsb */ | |
775 | } while (0); | |
776 | ||
777 | a_b[0] = START_CHAR; | |
778 | a_b[1] = tochar (length); | |
779 | a_b[2] = tochar (n); | |
780 | a_b[3] = ACK_TYPE; | |
781 | a_b[++length] = '\0'; | |
782 | a_b[length] = tochar (chk1 (&a_b[1])); | |
783 | a_b[++length] = his_eol; | |
784 | a_b[++length] = '\0'; | |
785 | s1_sendpacket (a_b); | |
786 | } | |
787 | ||
788 | /* k_recv receives a OS Open image file over kermit line */ | |
789 | static int k_recv (void) | |
790 | { | |
791 | char new_char; | |
792 | char k_state, k_state_saved; | |
793 | int sum; | |
794 | int done; | |
795 | int length; | |
796 | int n, last_n; | |
797 | int z = 0; | |
798 | int len_lo, len_hi; | |
799 | ||
800 | /* initialize some protocol parameters */ | |
801 | his_eol = END_CHAR; /* default end of line character */ | |
802 | his_pad_count = 0; | |
803 | his_pad_char = '\0'; | |
804 | his_quote = K_ESCAPE; | |
805 | ||
806 | /* initialize the k_recv and k_data state machine */ | |
807 | done = 0; | |
808 | k_state = 0; | |
809 | k_data_init (); | |
810 | k_state_saved = k_state; | |
811 | k_data_save (); | |
812 | n = 0; /* just to get rid of a warning */ | |
813 | last_n = -1; | |
814 | ||
815 | /* expect this "type" sequence (but don't check): | |
816 | S: send initiate | |
817 | F: file header | |
818 | D: data (multiple) | |
819 | Z: end of file | |
820 | B: break transmission | |
821 | */ | |
822 | ||
823 | /* enter main loop */ | |
824 | while (!done) { | |
825 | /* set the send packet pointer to begining of send packet parms */ | |
826 | send_ptr = send_parms; | |
827 | ||
828 | /* With each packet, start summing the bytes starting with the length. | |
829 | Save the current sequence number. | |
830 | Note the type of the packet. | |
831 | If a character less than SPACE (0x20) is received - error. | |
832 | */ | |
833 | ||
834 | #if 0 | |
835 | /* OLD CODE, Prior to checking sequence numbers */ | |
836 | /* first have all state machines save current states */ | |
837 | k_state_saved = k_state; | |
838 | k_data_save (); | |
839 | #endif | |
840 | ||
841 | /* get a packet */ | |
842 | /* wait for the starting character or ^C */ | |
843 | for (;;) { | |
232c150a | 844 | switch (getc ()) { |
8bde7f77 WD |
845 | case START_CHAR: /* start packet */ |
846 | goto START; | |
847 | case ETX_CHAR: /* ^C waiting for packet */ | |
848 | return (0); | |
849 | default: | |
850 | ; | |
851 | } | |
852 | } | |
853 | START: | |
854 | /* get length of packet */ | |
855 | sum = 0; | |
232c150a | 856 | new_char = getc (); |
8bde7f77 WD |
857 | if ((new_char & 0xE0) == 0) |
858 | goto packet_error; | |
859 | sum += new_char & 0xff; | |
860 | length = untochar (new_char); | |
861 | /* get sequence number */ | |
232c150a | 862 | new_char = getc (); |
8bde7f77 WD |
863 | if ((new_char & 0xE0) == 0) |
864 | goto packet_error; | |
865 | sum += new_char & 0xff; | |
866 | n = untochar (new_char); | |
867 | --length; | |
868 | ||
869 | /* NEW CODE - check sequence numbers for retried packets */ | |
870 | /* Note - this new code assumes that the sequence number is correctly | |
871 | * received. Handling an invalid sequence number adds another layer | |
872 | * of complexity that may not be needed - yet! At this time, I'm hoping | |
873 | * that I don't need to buffer the incoming data packets and can write | |
874 | * the data into memory in real time. | |
875 | */ | |
876 | if (n == last_n) { | |
877 | /* same sequence number, restore the previous state */ | |
878 | k_state = k_state_saved; | |
879 | k_data_restore (); | |
880 | } else { | |
881 | /* new sequence number, checkpoint the download */ | |
882 | last_n = n; | |
883 | k_state_saved = k_state; | |
884 | k_data_save (); | |
885 | } | |
886 | /* END NEW CODE */ | |
887 | ||
888 | /* get packet type */ | |
232c150a | 889 | new_char = getc (); |
8bde7f77 WD |
890 | if ((new_char & 0xE0) == 0) |
891 | goto packet_error; | |
892 | sum += new_char & 0xff; | |
893 | k_state = new_char; | |
894 | --length; | |
895 | /* check for extended length */ | |
896 | if (length == -2) { | |
897 | /* (length byte was 0, decremented twice) */ | |
898 | /* get the two length bytes */ | |
232c150a | 899 | new_char = getc (); |
8bde7f77 WD |
900 | if ((new_char & 0xE0) == 0) |
901 | goto packet_error; | |
902 | sum += new_char & 0xff; | |
903 | len_hi = untochar (new_char); | |
232c150a | 904 | new_char = getc (); |
8bde7f77 WD |
905 | if ((new_char & 0xE0) == 0) |
906 | goto packet_error; | |
907 | sum += new_char & 0xff; | |
908 | len_lo = untochar (new_char); | |
909 | length = len_hi * 95 + len_lo; | |
910 | /* check header checksum */ | |
232c150a | 911 | new_char = getc (); |
8bde7f77 WD |
912 | if ((new_char & 0xE0) == 0) |
913 | goto packet_error; | |
914 | if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f)) | |
915 | goto packet_error; | |
916 | sum += new_char & 0xff; | |
917 | /* --length; */ /* new length includes only data and block check to come */ | |
918 | } | |
919 | /* bring in rest of packet */ | |
920 | while (length > 1) { | |
232c150a | 921 | new_char = getc (); |
8bde7f77 WD |
922 | if ((new_char & 0xE0) == 0) |
923 | goto packet_error; | |
924 | sum += new_char & 0xff; | |
925 | --length; | |
926 | if (k_state == DATA_TYPE) { | |
927 | /* pass on the data if this is a data packet */ | |
928 | k_data_char (new_char); | |
929 | } else if (k_state == SEND_TYPE) { | |
930 | /* save send pack in buffer as is */ | |
931 | *send_ptr++ = new_char; | |
932 | /* if too much data, back off the pointer */ | |
933 | if (send_ptr >= &send_parms[SEND_DATA_SIZE]) | |
934 | --send_ptr; | |
935 | } | |
936 | } | |
937 | /* get and validate checksum character */ | |
232c150a | 938 | new_char = getc (); |
8bde7f77 WD |
939 | if ((new_char & 0xE0) == 0) |
940 | goto packet_error; | |
941 | if (new_char != tochar ((sum + ((sum >> 6) & 0x03)) & 0x3f)) | |
942 | goto packet_error; | |
943 | /* get END_CHAR */ | |
232c150a | 944 | new_char = getc (); |
8bde7f77 WD |
945 | if (new_char != END_CHAR) { |
946 | packet_error: | |
947 | /* restore state machines */ | |
948 | k_state = k_state_saved; | |
949 | k_data_restore (); | |
950 | /* send a negative acknowledge packet in */ | |
951 | send_nack (n); | |
952 | } else if (k_state == SEND_TYPE) { | |
953 | /* crack the protocol parms, build an appropriate ack packet */ | |
954 | handle_send_packet (n); | |
955 | } else { | |
956 | /* send simple acknowledge packet in */ | |
957 | send_ack (n); | |
958 | /* quit if end of transmission */ | |
959 | if (k_state == BREAK_TYPE) | |
960 | done = 1; | |
961 | } | |
962 | ++z; | |
963 | } | |
964 | return ((ulong) os_data_addr - (ulong) bin_start_address); | |
965 | } | |
966 | #endif /* CFG_CMD_LOADB */ | |
967 | ||
968 | /* -------------------------------------------------------------------- */ | |
969 | ||
970 | #if (CONFIG_COMMANDS & CFG_CMD_LOADS) | |
971 | ||
972 | #ifdef CFG_LOADS_BAUD_CHANGE | |
0d498393 WD |
973 | U_BOOT_CMD( |
974 | loads, 3, 0, do_load_serial, | |
8bde7f77 WD |
975 | "loads - load S-Record file over serial line\n", |
976 | "[ off ] [ baud ]\n" | |
977 | " - load S-Record file over serial line" | |
978 | " with offset 'off' and baudrate 'baud'\n" | |
979 | ); | |
980 | ||
981 | #else /* ! CFG_LOADS_BAUD_CHANGE */ | |
0d498393 WD |
982 | U_BOOT_CMD( |
983 | loads, 2, 0, do_load_serial, | |
8bde7f77 WD |
984 | "loads - load S-Record file over serial line\n", |
985 | "[ off ]\n" | |
986 | " - load S-Record file over serial line with offset 'off'\n" | |
987 | ); | |
988 | #endif /* CFG_LOADS_BAUD_CHANGE */ | |
989 | ||
990 | /* | |
991 | * SAVES always requires LOADS support, but not vice versa | |
992 | */ | |
993 | ||
994 | ||
995 | #if (CONFIG_COMMANDS & CFG_CMD_SAVES) | |
996 | #ifdef CFG_LOADS_BAUD_CHANGE | |
0d498393 WD |
997 | U_BOOT_CMD( |
998 | saves, 4, 0, do_save_serial, | |
8bde7f77 WD |
999 | "saves - save S-Record file over serial line\n", |
1000 | "[ off ] [size] [ baud ]\n" | |
1001 | " - save S-Record file over serial line" | |
1002 | " with offset 'off', size 'size' and baudrate 'baud'\n" | |
1003 | ); | |
1004 | #else /* ! CFG_LOADS_BAUD_CHANGE */ | |
0d498393 WD |
1005 | U_BOOT_CMD( |
1006 | saves, 3, 0, do_save_serial, | |
8bde7f77 WD |
1007 | "saves - save S-Record file over serial line\n", |
1008 | "[ off ] [size]\n" | |
1009 | " - save S-Record file over serial line with offset 'off' and size 'size'\n" | |
1010 | ); | |
1011 | #endif /* CFG_LOADS_BAUD_CHANGE */ | |
1012 | #endif /* CFG_CMD_SAVES */ | |
1013 | #endif /* CFG_CMD_LOADS */ | |
1014 | ||
1015 | ||
1016 | #if (CONFIG_COMMANDS & CFG_CMD_LOADB) | |
0d498393 WD |
1017 | U_BOOT_CMD( |
1018 | loadb, 3, 0, do_load_serial_bin, | |
8bde7f77 WD |
1019 | "loadb - load binary file over serial line (kermit mode)\n", |
1020 | "[ off ] [ baud ]\n" | |
1021 | " - load binary file over serial line" | |
1022 | " with offset 'off' and baudrate 'baud'\n" | |
1023 | ); | |
1024 | ||
1025 | #endif /* CFG_CMD_LOADB */ | |
1026 | ||
1027 | /* -------------------------------------------------------------------- */ | |
1028 | ||
1029 | #if (CONFIG_COMMANDS & CFG_CMD_HWFLOW) | |
1030 | int do_hwflow (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
1031 | { | |
1032 | extern int hwflow_onoff(int); | |
1033 | ||
1034 | if (argc == 2) { | |
1035 | if (strcmp(argv[1], "off") == 0) | |
1036 | hwflow_onoff(-1); | |
1037 | else | |
1038 | if (strcmp(argv[1], "on") == 0) | |
1039 | hwflow_onoff(1); | |
1040 | else | |
1041 | printf("Usage: %s\n", cmdtp->usage); | |
1042 | } | |
1043 | printf("RTS/CTS hardware flow control: %s\n", hwflow_onoff(0) ? "on" : "off"); | |
1044 | return 0; | |
1045 | } | |
1046 | ||
1047 | /* -------------------------------------------------------------------- */ | |
1048 | ||
0d498393 | 1049 | U_BOOT_CMD( |
f12e568c | 1050 | hwflow, 2, 0, do_hwflow, |
8bde7f77 | 1051 | "hwflow - turn the harwdare flow control on/off\n", |
f12e568c | 1052 | "[on|off]\n - change RTS/CTS hardware flow control over serial line\n" |
8bde7f77 WD |
1053 | ); |
1054 | ||
1055 | #endif /* CFG_CMD_HWFLOW */ |