1
2
3
4
5
6
7
8
9#include <common.h>
10#include <env.h>
11#include <errno.h>
12#include <log.h>
13#include <malloc.h>
14#include <mmc.h>
15#include <fat.h>
16#include <dfu.h>
17#include <hash.h>
18#include <linux/list.h>
19#include <linux/compiler.h>
20
21LIST_HEAD(dfu_list);
22static int dfu_alt_num;
23static int alt_num_cnt;
24static struct hash_algo *dfu_hash_algo;
25#ifdef CONFIG_DFU_TIMEOUT
26static unsigned long dfu_timeout = 0;
27#endif
28
29bool dfu_reinit_needed = false;
30
31
32
33
34
35__weak void dfu_flush_callback(struct dfu_entity *dfu)
36{
37}
38
39
40
41
42
43__weak void dfu_initiated_callback(struct dfu_entity *dfu)
44{
45}
46
47
48
49
50
51__weak void dfu_error_callback(struct dfu_entity *dfu, const char *msg)
52{
53}
54
55
56
57
58
59
60
61
62
63
64
65
66__weak bool dfu_usb_get_reset(void)
67{
68#ifdef CONFIG_SPL_DFU_NO_RESET
69 return false;
70#else
71 return true;
72#endif
73}
74
75#ifdef CONFIG_DFU_TIMEOUT
76void dfu_set_timeout(unsigned long timeout)
77{
78 dfu_timeout = timeout;
79}
80
81unsigned long dfu_get_timeout(void)
82{
83 return dfu_timeout;
84}
85#endif
86
87static int dfu_find_alt_num(const char *s)
88{
89 int i = 0;
90
91 for (; *s; s++)
92 if (*s == ';')
93 i++;
94
95 return ++i;
96}
97
98
99
100
101
102
103
104
105int dfu_config_interfaces(char *env)
106{
107 struct dfu_entity *dfu;
108 char *s, *i, *d, *a, *part;
109 int ret = -EINVAL;
110 int n = 1;
111
112 s = env;
113 for (; *s; s++) {
114 if (*s == ';')
115 n++;
116 if (*s == '&')
117 n++;
118 }
119 ret = dfu_alt_init(n, &dfu);
120 if (ret)
121 return ret;
122
123 s = env;
124 while (s) {
125 ret = -EINVAL;
126 i = strsep(&s, " \t");
127 if (!i)
128 break;
129 s = skip_spaces(s);
130 d = strsep(&s, "=");
131 if (!d)
132 break;
133 a = strsep(&s, "&");
134 if (!a)
135 a = s;
136 do {
137 part = strsep(&a, ";");
138 ret = dfu_alt_add(dfu, i, d, part);
139 if (ret)
140 return ret;
141 } while (a);
142 }
143
144 return ret;
145}
146
147int dfu_init_env_entities(char *interface, char *devstr)
148{
149 const char *str_env;
150 char *env_bkp;
151 int ret = 0;
152
153 dfu_reinit_needed = false;
154
155#ifdef CONFIG_SET_DFU_ALT_INFO
156 set_dfu_alt_info(interface, devstr);
157#endif
158 str_env = env_get("dfu_alt_info");
159 if (!str_env) {
160 pr_err("\"dfu_alt_info\" env variable not defined!\n");
161 return -EINVAL;
162 }
163
164 env_bkp = strdup(str_env);
165 if (!interface && !devstr)
166 ret = dfu_config_interfaces(env_bkp);
167 else
168 ret = dfu_config_entities(env_bkp, interface, devstr);
169
170 if (ret) {
171 pr_err("DFU entities configuration failed!\n");
172 pr_err("(partition table does not match dfu_alt_info?)\n");
173 goto done;
174 }
175
176done:
177 free(env_bkp);
178 return ret;
179}
180
181static unsigned char *dfu_buf;
182static unsigned long dfu_buf_size;
183static enum dfu_device_type dfu_buf_device_type;
184
185unsigned char *dfu_free_buf(void)
186{
187 free(dfu_buf);
188 dfu_buf = NULL;
189 return dfu_buf;
190}
191
192unsigned long dfu_get_buf_size(void)
193{
194 return dfu_buf_size;
195}
196
197unsigned char *dfu_get_buf(struct dfu_entity *dfu)
198{
199 char *s;
200
201
202 if (dfu_buf && dfu->dev_type != dfu_buf_device_type)
203 dfu_free_buf();
204
205 if (dfu_buf != NULL)
206 return dfu_buf;
207
208 s = env_get("dfu_bufsiz");
209 if (s)
210 dfu_buf_size = (unsigned long)simple_strtol(s, NULL, 0);
211
212 if (!s || !dfu_buf_size)
213 dfu_buf_size = CONFIG_SYS_DFU_DATA_BUF_SIZE;
214
215 if (dfu->max_buf_size && dfu_buf_size > dfu->max_buf_size)
216 dfu_buf_size = dfu->max_buf_size;
217
218 dfu_buf = memalign(CONFIG_SYS_CACHELINE_SIZE, dfu_buf_size);
219 if (dfu_buf == NULL)
220 printf("%s: Could not memalign 0x%lx bytes\n",
221 __func__, dfu_buf_size);
222
223 dfu_buf_device_type = dfu->dev_type;
224 return dfu_buf;
225}
226
227static char *dfu_get_hash_algo(void)
228{
229 char *s;
230
231 s = env_get("dfu_hash_algo");
232 if (!s)
233 return NULL;
234
235 if (!strcmp(s, "crc32")) {
236 debug("%s: DFU hash method: %s\n", __func__, s);
237 return s;
238 }
239
240 pr_err("DFU hash method: %s not supported!\n", s);
241 return NULL;
242}
243
244static int dfu_write_buffer_drain(struct dfu_entity *dfu)
245{
246 long w_size;
247 int ret;
248
249
250 w_size = dfu->i_buf - dfu->i_buf_start;
251 if (w_size == 0)
252 return 0;
253
254 if (dfu_hash_algo)
255 dfu_hash_algo->hash_update(dfu_hash_algo, &dfu->crc,
256 dfu->i_buf_start, w_size, 0);
257
258 ret = dfu->write_medium(dfu, dfu->offset, dfu->i_buf_start, &w_size);
259 if (ret)
260 debug("%s: Write error!\n", __func__);
261
262
263 dfu->i_buf = dfu->i_buf_start;
264
265
266 dfu->offset += w_size;
267
268 puts("#");
269
270 return ret;
271}
272
273void dfu_transaction_cleanup(struct dfu_entity *dfu)
274{
275
276 dfu->crc = 0;
277 dfu->offset = 0;
278 dfu->i_blk_seq_num = 0;
279 dfu->i_buf_start = dfu_get_buf(dfu);
280 dfu->i_buf_end = dfu->i_buf_start;
281 dfu->i_buf = dfu->i_buf_start;
282 dfu->r_left = 0;
283 dfu->b_left = 0;
284 dfu->bad_skip = 0;
285
286 dfu->inited = 0;
287}
288
289int dfu_transaction_initiate(struct dfu_entity *dfu, bool read)
290{
291 int ret = 0;
292
293 if (dfu->inited)
294 return 0;
295
296 dfu_transaction_cleanup(dfu);
297
298 if (dfu->i_buf_start == NULL)
299 return -ENOMEM;
300
301 dfu->i_buf_end = dfu->i_buf_start + dfu_get_buf_size();
302
303 if (read) {
304 ret = dfu->get_medium_size(dfu, &dfu->r_left);
305 if (ret < 0)
306 return ret;
307 debug("%s: %s %lld [B]\n", __func__, dfu->name, dfu->r_left);
308 }
309
310 dfu->inited = 1;
311 dfu_initiated_callback(dfu);
312
313 return 0;
314}
315
316int dfu_flush(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
317{
318 int ret = 0;
319
320 ret = dfu_write_buffer_drain(dfu);
321 if (ret)
322 return ret;
323
324 if (dfu->flush_medium)
325 ret = dfu->flush_medium(dfu);
326
327 if (dfu_hash_algo)
328 printf("\nDFU complete %s: 0x%08x\n", dfu_hash_algo->name,
329 dfu->crc);
330
331 dfu_flush_callback(dfu);
332
333 dfu_transaction_cleanup(dfu);
334
335 return ret;
336}
337
338int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
339{
340 int ret;
341
342 debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x offset: 0x%llx bufoffset: 0x%lx\n",
343 __func__, dfu->name, buf, size, blk_seq_num, dfu->offset,
344 (unsigned long)(dfu->i_buf - dfu->i_buf_start));
345
346 ret = dfu_transaction_initiate(dfu, false);
347 if (ret < 0)
348 return ret;
349
350 if (dfu->i_blk_seq_num != blk_seq_num) {
351 printf("%s: Wrong sequence number! [%d] [%d]\n",
352 __func__, dfu->i_blk_seq_num, blk_seq_num);
353 dfu_transaction_cleanup(dfu);
354 dfu_error_callback(dfu, "Wrong sequence number");
355 return -1;
356 }
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372 dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff;
373
374
375 if ((dfu->i_buf + size) > dfu->i_buf_end) {
376 ret = dfu_write_buffer_drain(dfu);
377 if (ret) {
378 dfu_transaction_cleanup(dfu);
379 dfu_error_callback(dfu, "DFU write error");
380 return ret;
381 }
382 }
383
384
385 if ((dfu->i_buf + size) > dfu->i_buf_end) {
386 pr_err("Buffer overflow! (0x%p + 0x%x > 0x%p)\n", dfu->i_buf,
387 size, dfu->i_buf_end);
388 dfu_transaction_cleanup(dfu);
389 dfu_error_callback(dfu, "Buffer overflow");
390 return -1;
391 }
392
393 memcpy(dfu->i_buf, buf, size);
394 dfu->i_buf += size;
395
396
397 if (size == 0 || (dfu->i_buf + size) > dfu->i_buf_end) {
398 ret = dfu_write_buffer_drain(dfu);
399 if (ret) {
400 dfu_transaction_cleanup(dfu);
401 dfu_error_callback(dfu, "DFU write error");
402 return ret;
403 }
404 }
405
406 return 0;
407}
408
409static int dfu_read_buffer_fill(struct dfu_entity *dfu, void *buf, int size)
410{
411 long chunk;
412 int ret, readn;
413
414 readn = 0;
415 while (size > 0) {
416
417 chunk = min((long)size, dfu->b_left);
418
419 if (chunk > 0) {
420 memcpy(buf, dfu->i_buf, chunk);
421 if (dfu_hash_algo)
422 dfu_hash_algo->hash_update(dfu_hash_algo,
423 &dfu->crc, buf,
424 chunk, 0);
425
426 dfu->i_buf += chunk;
427 dfu->b_left -= chunk;
428 size -= chunk;
429 buf += chunk;
430 readn += chunk;
431 }
432
433
434 if (size > 0) {
435
436 if (dfu->r_left == 0)
437 break;
438
439 dfu->i_buf = dfu->i_buf_start;
440 dfu->b_left = dfu->i_buf_end - dfu->i_buf_start;
441
442
443 if (dfu->b_left > dfu->r_left)
444 dfu->b_left = dfu->r_left;
445 ret = dfu->read_medium(dfu, dfu->offset, dfu->i_buf,
446 &dfu->b_left);
447 if (ret != 0) {
448 debug("%s: Read error!\n", __func__);
449 return ret;
450 }
451 if (dfu->b_left == 0)
452 break;
453 dfu->offset += dfu->b_left;
454 dfu->r_left -= dfu->b_left;
455
456 puts("#");
457 }
458 }
459
460 return readn;
461}
462
463int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
464{
465 int ret = 0;
466
467 debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n",
468 __func__, dfu->name, buf, size, blk_seq_num, dfu->i_buf);
469
470 ret = dfu_transaction_initiate(dfu, true);
471 if (ret < 0)
472 return ret;
473
474 if (dfu->i_blk_seq_num != blk_seq_num) {
475 printf("%s: Wrong sequence number! [%d] [%d]\n",
476 __func__, dfu->i_blk_seq_num, blk_seq_num);
477 return -1;
478 }
479
480 dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff;
481
482 ret = dfu_read_buffer_fill(dfu, buf, size);
483 if (ret < 0) {
484 printf("%s: Failed to fill buffer\n", __func__);
485 return -1;
486 }
487
488 if (ret < size) {
489 if (dfu_hash_algo)
490 debug("%s: %s %s: 0x%x\n", __func__, dfu->name,
491 dfu_hash_algo->name, dfu->crc);
492 puts("\nUPLOAD ... done\nCtrl+C to exit ...\n");
493
494 dfu_transaction_cleanup(dfu);
495 }
496
497 return ret;
498}
499
500static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt,
501 char *interface, char *devstr)
502{
503 char *argv[DFU_MAX_ENTITY_ARGS];
504 int argc;
505 char *st;
506
507 debug("%s: %s interface: %s dev: %s\n", __func__, s, interface, devstr);
508 st = strsep(&s, " \t");
509 strlcpy(dfu->name, st, DFU_NAME_SIZE);
510
511
512 for (argc = 0; s && argc < DFU_MAX_ENTITY_ARGS; argc++) {
513 s = skip_spaces(s);
514 if (!*s)
515 break;
516 argv[argc] = strsep(&s, " \t");
517 }
518
519 if (argc == DFU_MAX_ENTITY_ARGS && s) {
520 s = skip_spaces(s);
521 if (*s) {
522 log_err("Too many arguments for %s\n", dfu->name);
523 return -EINVAL;
524 }
525 }
526
527 dfu->alt = alt;
528 dfu->max_buf_size = 0;
529 dfu->free_entity = NULL;
530
531
532 if (strcmp(interface, "mmc") == 0) {
533 if (dfu_fill_entity_mmc(dfu, devstr, argv, argc))
534 return -1;
535 } else if (strcmp(interface, "mtd") == 0) {
536 if (dfu_fill_entity_mtd(dfu, devstr, argv, argc))
537 return -1;
538 } else if (strcmp(interface, "nand") == 0) {
539 if (dfu_fill_entity_nand(dfu, devstr, argv, argc))
540 return -1;
541 } else if (strcmp(interface, "ram") == 0) {
542 if (dfu_fill_entity_ram(dfu, devstr, argv, argc))
543 return -1;
544 } else if (strcmp(interface, "sf") == 0) {
545 if (dfu_fill_entity_sf(dfu, devstr, argv, argc))
546 return -1;
547 } else if (strcmp(interface, "virt") == 0) {
548 if (dfu_fill_entity_virt(dfu, devstr, argv, argc))
549 return -1;
550 } else {
551 printf("%s: Device %s not (yet) supported!\n",
552 __func__, interface);
553 return -1;
554 }
555 dfu_get_buf(dfu);
556
557 return 0;
558}
559
560void dfu_free_entities(void)
561{
562 struct dfu_entity *dfu, *p, *t = NULL;
563
564 dfu_free_buf();
565 list_for_each_entry_safe_reverse(dfu, p, &dfu_list, list) {
566 list_del(&dfu->list);
567 if (dfu->free_entity)
568 dfu->free_entity(dfu);
569 t = dfu;
570 }
571 if (t)
572 free(t);
573 INIT_LIST_HEAD(&dfu_list);
574
575 alt_num_cnt = 0;
576}
577
578int dfu_alt_init(int num, struct dfu_entity **dfu)
579{
580 char *s;
581 int ret;
582
583 dfu_alt_num = num;
584 debug("%s: dfu_alt_num=%d\n", __func__, dfu_alt_num);
585
586 dfu_hash_algo = NULL;
587 s = dfu_get_hash_algo();
588 if (s) {
589 ret = hash_lookup_algo(s, &dfu_hash_algo);
590 if (ret)
591 pr_err("Hash algorithm %s not supported\n", s);
592 }
593
594 *dfu = calloc(sizeof(struct dfu_entity), dfu_alt_num);
595 if (!*dfu)
596 return -1;
597
598 return 0;
599}
600
601int dfu_alt_add(struct dfu_entity *dfu, char *interface, char *devstr, char *s)
602{
603 struct dfu_entity *p_dfu;
604 int ret;
605
606 if (alt_num_cnt >= dfu_alt_num)
607 return -1;
608
609 p_dfu = &dfu[alt_num_cnt];
610 ret = dfu_fill_entity(p_dfu, s, alt_num_cnt, interface, devstr);
611 if (ret)
612 return -1;
613
614 list_add_tail(&p_dfu->list, &dfu_list);
615 alt_num_cnt++;
616
617 return 0;
618}
619
620int dfu_config_entities(char *env, char *interface, char *devstr)
621{
622 struct dfu_entity *dfu;
623 int i, ret;
624 char *s;
625
626 ret = dfu_alt_init(dfu_find_alt_num(env), &dfu);
627 if (ret)
628 return -1;
629
630 for (i = 0; i < dfu_alt_num; i++) {
631 s = strsep(&env, ";");
632 ret = dfu_alt_add(dfu, interface, devstr, s);
633 if (ret) {
634
635 return -1;
636 }
637 }
638
639 return 0;
640}
641
642const char *dfu_get_dev_type(enum dfu_device_type t)
643{
644 const char *const dev_t[] = {NULL, "eMMC", "OneNAND", "NAND", "RAM",
645 "SF", "MTD", "VIRT"};
646 return dev_t[t];
647}
648
649const char *dfu_get_layout(enum dfu_layout l)
650{
651 const char *const dfu_layout[] = {NULL, "RAW_ADDR", "FAT", "EXT2",
652 "EXT3", "EXT4", "RAM_ADDR", "SKIP",
653 "SCRIPT" };
654 return dfu_layout[l];
655}
656
657void dfu_show_entities(void)
658{
659 struct dfu_entity *dfu;
660
661 puts("DFU alt settings list:\n");
662
663 list_for_each_entry(dfu, &dfu_list, list) {
664 printf("dev: %s alt: %d name: %s layout: %s\n",
665 dfu_get_dev_type(dfu->dev_type), dfu->alt,
666 dfu->name, dfu_get_layout(dfu->layout));
667 }
668}
669
670int dfu_get_alt_number(void)
671{
672 return dfu_alt_num;
673}
674
675struct dfu_entity *dfu_get_entity(int alt)
676{
677 struct dfu_entity *dfu;
678
679 list_for_each_entry(dfu, &dfu_list, list) {
680 if (dfu->alt == alt)
681 return dfu;
682 }
683
684 return NULL;
685}
686
687int dfu_get_alt(char *name)
688{
689 struct dfu_entity *dfu;
690 char *str;
691
692 list_for_each_entry(dfu, &dfu_list, list) {
693 if (dfu->name[0] != '/') {
694 if (!strncmp(dfu->name, name, strlen(dfu->name)))
695 return dfu->alt;
696 } else {
697
698
699
700
701
702
703
704
705
706
707 str = strstr(dfu->name, name);
708 if (!str)
709 continue;
710
711
712
713
714
715 if (strlen(dfu->name) ==
716 ((str - dfu->name) + strlen(name)))
717 return dfu->alt;
718 }
719 }
720
721 return -ENODEV;
722}
723
724int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size)
725{
726 unsigned long dfu_buf_size, write, left = size;
727 int i, ret = 0;
728 void *dp = buf;
729
730
731
732
733
734
735 dfu_get_buf(dfu);
736 dfu_buf_size = dfu_get_buf_size();
737 debug("%s: dfu buf size: %lu\n", __func__, dfu_buf_size);
738
739 for (i = 0; left > 0; i++) {
740 write = min(dfu_buf_size, left);
741
742 debug("%s: dp: 0x%p left: %lu write: %lu\n", __func__,
743 dp, left, write);
744 ret = dfu_write(dfu, dp, write, i);
745 if (ret) {
746 pr_err("DFU write failed\n");
747 return ret;
748 }
749
750 dp += write;
751 left -= write;
752 }
753
754 ret = dfu_flush(dfu, NULL, 0, i);
755 if (ret)
756 pr_err("DFU flush failed!");
757 puts("\n");
758
759 return ret;
760}
761