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Lukasz Majewskif22b11c2012-08-06 14:41:07 +02001/*
2 * dfu.c -- DFU back-end routines
3 *
4 * Copyright (C) 2012 Samsung Electronics
5 * author: Lukasz Majewski <l.majewski@samsung.com>
6 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02007 * SPDX-License-Identifier: GPL-2.0+
Lukasz Majewskif22b11c2012-08-06 14:41:07 +02008 */
9
10#include <common.h>
Heiko Schochere7e75c72013-06-12 06:05:51 +020011#include <errno.h>
Lukasz Majewskif22b11c2012-08-06 14:41:07 +020012#include <malloc.h>
13#include <mmc.h>
14#include <fat.h>
15#include <dfu.h>
Lukasz Majewskibd694242014-05-12 10:43:36 +020016#include <hash.h>
Lukasz Majewskif22b11c2012-08-06 14:41:07 +020017#include <linux/list.h>
18#include <linux/compiler.h>
19
20static LIST_HEAD(dfu_list);
21static int dfu_alt_num;
Przemyslaw Marczakb627eb42014-02-28 18:53:37 +010022static int alt_num_cnt;
Lukasz Majewskibd694242014-05-12 10:43:36 +020023static struct hash_algo *dfu_hash_algo;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +020024
Lukasz Majewski1cc03c52014-08-25 11:07:28 +020025/*
26 * The purpose of the dfu_usb_get_reset() function is to
27 * provide information if after USB_DETACH request
28 * being sent the dfu-util performed reset of USB
29 * bus.
30 *
31 * Described behaviour is the only way to distinct if
32 * user has typed -e (detach) or -R (reset) when invoking
33 * dfu-util command.
34 *
35 */
36__weak bool dfu_usb_get_reset(void)
Lukasz Majewski6bed7ce2013-07-18 13:19:14 +020037{
Lukasz Majewski1cc03c52014-08-25 11:07:28 +020038 return true;
Lukasz Majewski6bed7ce2013-07-18 13:19:14 +020039}
40
Lukasz Majewskif22b11c2012-08-06 14:41:07 +020041static int dfu_find_alt_num(const char *s)
42{
43 int i = 0;
44
45 for (; *s; s++)
46 if (*s == ';')
47 i++;
48
49 return ++i;
50}
51
Stephen Warrendd648272014-06-11 16:03:33 -060052int dfu_init_env_entities(char *interface, char *devstr)
Lukasz Majewski765c5ae2013-09-11 14:53:35 +020053{
54 const char *str_env;
55 char *env_bkp;
56 int ret;
57
Przemyslaw Marczak899a5282015-02-17 12:24:11 +010058#ifdef CONFIG_SET_DFU_ALT_INFO
59 set_dfu_alt_info(interface, devstr);
60#endif
Lukasz Majewski765c5ae2013-09-11 14:53:35 +020061 str_env = getenv("dfu_alt_info");
62 if (!str_env) {
63 error("\"dfu_alt_info\" env variable not defined!\n");
64 return -EINVAL;
65 }
66
67 env_bkp = strdup(str_env);
Stephen Warrendd648272014-06-11 16:03:33 -060068 ret = dfu_config_entities(env_bkp, interface, devstr);
Lukasz Majewski765c5ae2013-09-11 14:53:35 +020069 if (ret) {
70 error("DFU entities configuration failed!\n");
71 return ret;
72 }
73
74 free(env_bkp);
75 return 0;
76}
77
Heiko Schochere7e75c72013-06-12 06:05:51 +020078static unsigned char *dfu_buf;
Lukasz Majewskia7e68922015-07-08 23:43:18 +020079static unsigned long dfu_buf_size;
Heiko Schochere7e75c72013-06-12 06:05:51 +020080
Lukasz Majewskid4278262013-10-08 14:30:39 +020081unsigned char *dfu_free_buf(void)
Heiko Schochere7e75c72013-06-12 06:05:51 +020082{
83 free(dfu_buf);
84 dfu_buf = NULL;
85 return dfu_buf;
86}
87
Lukasz Majewski4fb12782013-12-09 16:20:13 +010088unsigned long dfu_get_buf_size(void)
89{
90 return dfu_buf_size;
91}
92
Stephen Warren7ac1b412014-06-11 16:03:34 -060093unsigned char *dfu_get_buf(struct dfu_entity *dfu)
Heiko Schochere7e75c72013-06-12 06:05:51 +020094{
95 char *s;
96
97 if (dfu_buf != NULL)
98 return dfu_buf;
99
100 s = getenv("dfu_bufsiz");
Przemyslaw Marczakf597fc32014-12-15 10:34:11 +0100101 if (s)
102 dfu_buf_size = (unsigned long)simple_strtol(s, NULL, 0);
103
104 if (!s || !dfu_buf_size)
105 dfu_buf_size = CONFIG_SYS_DFU_DATA_BUF_SIZE;
106
Stephen Warren7ac1b412014-06-11 16:03:34 -0600107 if (dfu->max_buf_size && dfu_buf_size > dfu->max_buf_size)
108 dfu_buf_size = dfu->max_buf_size;
Heiko Schochere7e75c72013-06-12 06:05:51 +0200109
110 dfu_buf = memalign(CONFIG_SYS_CACHELINE_SIZE, dfu_buf_size);
111 if (dfu_buf == NULL)
112 printf("%s: Could not memalign 0x%lx bytes\n",
113 __func__, dfu_buf_size);
114
115 return dfu_buf;
116}
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200117
Lukasz Majewskibd694242014-05-12 10:43:36 +0200118static char *dfu_get_hash_algo(void)
119{
120 char *s;
121
122 s = getenv("dfu_hash_algo");
Lukasz Majewski3d83e672014-06-10 12:25:59 +0200123 if (!s)
Lukasz Majewskibd694242014-05-12 10:43:36 +0200124 return NULL;
125
Lukasz Majewski3d83e672014-06-10 12:25:59 +0200126 if (!strcmp(s, "crc32")) {
127 debug("%s: DFU hash method: %s\n", __func__, s);
128 return s;
129 }
130
131 error("DFU hash method: %s not supported!\n", s);
Lukasz Majewskibd694242014-05-12 10:43:36 +0200132 return NULL;
133}
134
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000135static int dfu_write_buffer_drain(struct dfu_entity *dfu)
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200136{
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000137 long w_size;
138 int ret;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200139
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000140 /* flush size? */
141 w_size = dfu->i_buf - dfu->i_buf_start;
142 if (w_size == 0)
143 return 0;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200144
Lukasz Majewskibd694242014-05-12 10:43:36 +0200145 if (dfu_hash_algo)
146 dfu_hash_algo->hash_update(dfu_hash_algo, &dfu->crc,
147 dfu->i_buf_start, w_size, 0);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200148
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000149 ret = dfu->write_medium(dfu, dfu->offset, dfu->i_buf_start, &w_size);
150 if (ret)
151 debug("%s: Write error!\n", __func__);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200152
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000153 /* point back */
154 dfu->i_buf = dfu->i_buf_start;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200155
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000156 /* update offset */
157 dfu->offset += w_size;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200158
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000159 puts("#");
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200160
161 return ret;
162}
163
Stephen Warren3ee95932014-06-11 12:48:08 -0600164void dfu_write_transaction_cleanup(struct dfu_entity *dfu)
165{
166 /* clear everything */
Stephen Warren3ee95932014-06-11 12:48:08 -0600167 dfu->crc = 0;
168 dfu->offset = 0;
169 dfu->i_blk_seq_num = 0;
170 dfu->i_buf_start = dfu_buf;
171 dfu->i_buf_end = dfu_buf;
172 dfu->i_buf = dfu->i_buf_start;
173 dfu->inited = 0;
174}
175
Heiko Schochera2199af2014-03-18 08:09:55 +0100176int dfu_flush(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
177{
178 int ret = 0;
179
Przemyslaw Marczak1aa4bdc2014-05-12 12:05:33 +0200180 ret = dfu_write_buffer_drain(dfu);
181 if (ret)
182 return ret;
183
Heiko Schochera2199af2014-03-18 08:09:55 +0100184 if (dfu->flush_medium)
185 ret = dfu->flush_medium(dfu);
186
Lukasz Majewskibd694242014-05-12 10:43:36 +0200187 if (dfu_hash_algo)
188 printf("\nDFU complete %s: 0x%08x\n", dfu_hash_algo->name,
189 dfu->crc);
Heiko Schochera2199af2014-03-18 08:09:55 +0100190
Stephen Warren3ee95932014-06-11 12:48:08 -0600191 dfu_write_transaction_cleanup(dfu);
Heiko Schochera2199af2014-03-18 08:09:55 +0100192
193 return ret;
194}
195
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000196int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200197{
Stephen Warren3ee95932014-06-11 12:48:08 -0600198 int ret;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200199
Stephen Warrene621c7a2015-07-22 14:54:04 -0600200 debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x offset: 0x%llx bufoffset: 0x%lx\n",
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000201 __func__, dfu->name, buf, size, blk_seq_num, dfu->offset,
Stephen Warrene621c7a2015-07-22 14:54:04 -0600202 (unsigned long)(dfu->i_buf - dfu->i_buf_start));
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200203
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000204 if (!dfu->inited) {
205 /* initial state */
206 dfu->crc = 0;
207 dfu->offset = 0;
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000208 dfu->bad_skip = 0;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000209 dfu->i_blk_seq_num = 0;
Stephen Warren7ac1b412014-06-11 16:03:34 -0600210 dfu->i_buf_start = dfu_get_buf(dfu);
Heiko Schochere7e75c72013-06-12 06:05:51 +0200211 if (dfu->i_buf_start == NULL)
212 return -ENOMEM;
Stephen Warren7ac1b412014-06-11 16:03:34 -0600213 dfu->i_buf_end = dfu_get_buf(dfu) + dfu_buf_size;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000214 dfu->i_buf = dfu->i_buf_start;
215
216 dfu->inited = 1;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200217 }
218
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000219 if (dfu->i_blk_seq_num != blk_seq_num) {
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200220 printf("%s: Wrong sequence number! [%d] [%d]\n",
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000221 __func__, dfu->i_blk_seq_num, blk_seq_num);
Stephen Warren3ee95932014-06-11 12:48:08 -0600222 dfu_write_transaction_cleanup(dfu);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200223 return -1;
224 }
225
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000226 /* DFU 1.1 standard says:
227 * The wBlockNum field is a block sequence number. It increments each
228 * time a block is transferred, wrapping to zero from 65,535. It is used
229 * to provide useful context to the DFU loader in the device."
230 *
231 * This means that it's a 16 bit counter that roll-overs at
232 * 0xffff -> 0x0000. By having a typical 4K transfer block
233 * we roll-over at exactly 256MB. Not very fun to debug.
234 *
235 * Handling rollover, and having an inited variable,
236 * makes things work.
237 */
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200238
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000239 /* handle rollover */
240 dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff;
241
242 /* flush buffer if overflow */
243 if ((dfu->i_buf + size) > dfu->i_buf_end) {
Stephen Warren3ee95932014-06-11 12:48:08 -0600244 ret = dfu_write_buffer_drain(dfu);
245 if (ret) {
246 dfu_write_transaction_cleanup(dfu);
247 return ret;
248 }
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200249 }
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000250
251 /* we should be in buffer now (if not then size too large) */
252 if ((dfu->i_buf + size) > dfu->i_buf_end) {
Lukasz Majewskia7d2c3c2013-09-10 15:29:22 +0200253 error("Buffer overflow! (0x%p + 0x%x > 0x%p)\n", dfu->i_buf,
254 size, dfu->i_buf_end);
Stephen Warren3ee95932014-06-11 12:48:08 -0600255 dfu_write_transaction_cleanup(dfu);
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000256 return -1;
257 }
258
259 memcpy(dfu->i_buf, buf, size);
260 dfu->i_buf += size;
261
262 /* if end or if buffer full flush */
263 if (size == 0 || (dfu->i_buf + size) > dfu->i_buf_end) {
Stephen Warren3ee95932014-06-11 12:48:08 -0600264 ret = dfu_write_buffer_drain(dfu);
265 if (ret) {
266 dfu_write_transaction_cleanup(dfu);
267 return ret;
268 }
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000269 }
270
Stephen Warren3ee95932014-06-11 12:48:08 -0600271 return 0;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000272}
273
274static int dfu_read_buffer_fill(struct dfu_entity *dfu, void *buf, int size)
275{
276 long chunk;
277 int ret, readn;
278
279 readn = 0;
280 while (size > 0) {
281 /* get chunk that can be read */
Masahiro Yamadab4141192014-11-07 03:03:31 +0900282 chunk = min((long)size, dfu->b_left);
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000283 /* consume */
284 if (chunk > 0) {
285 memcpy(buf, dfu->i_buf, chunk);
Lukasz Majewskibd694242014-05-12 10:43:36 +0200286 if (dfu_hash_algo)
287 dfu_hash_algo->hash_update(dfu_hash_algo,
288 &dfu->crc, buf,
289 chunk, 0);
290
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000291 dfu->i_buf += chunk;
292 dfu->b_left -= chunk;
293 size -= chunk;
294 buf += chunk;
295 readn += chunk;
296 }
297
298 /* all done */
299 if (size > 0) {
300 /* no more to read */
301 if (dfu->r_left == 0)
302 break;
303
304 dfu->i_buf = dfu->i_buf_start;
305 dfu->b_left = dfu->i_buf_end - dfu->i_buf_start;
306
307 /* got to read, but buffer is empty */
308 if (dfu->b_left > dfu->r_left)
309 dfu->b_left = dfu->r_left;
310 ret = dfu->read_medium(dfu, dfu->offset, dfu->i_buf,
311 &dfu->b_left);
312 if (ret != 0) {
313 debug("%s: Read error!\n", __func__);
314 return ret;
315 }
316 dfu->offset += dfu->b_left;
317 dfu->r_left -= dfu->b_left;
318
319 puts("#");
320 }
321 }
322
323 return readn;
324}
325
326int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
327{
328 int ret = 0;
329
330 debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n",
331 __func__, dfu->name, buf, size, blk_seq_num, dfu->i_buf);
332
333 if (!dfu->inited) {
Stephen Warren7ac1b412014-06-11 16:03:34 -0600334 dfu->i_buf_start = dfu_get_buf(dfu);
Łukasz Majewski9df49552013-06-28 18:41:50 +0200335 if (dfu->i_buf_start == NULL)
336 return -ENOMEM;
337
Stephen Warren0e285b52014-06-11 12:47:27 -0600338 dfu->r_left = dfu->get_medium_size(dfu);
339 if (dfu->r_left < 0)
340 return dfu->r_left;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000341
342 debug("%s: %s %ld [B]\n", __func__, dfu->name, dfu->r_left);
343
344 dfu->i_blk_seq_num = 0;
345 dfu->crc = 0;
346 dfu->offset = 0;
Stephen Warren7ac1b412014-06-11 16:03:34 -0600347 dfu->i_buf_end = dfu_get_buf(dfu) + dfu_buf_size;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000348 dfu->i_buf = dfu->i_buf_start;
Stephen Warren0e285b52014-06-11 12:47:27 -0600349 dfu->b_left = 0;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000350
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000351 dfu->bad_skip = 0;
352
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000353 dfu->inited = 1;
354 }
355
356 if (dfu->i_blk_seq_num != blk_seq_num) {
357 printf("%s: Wrong sequence number! [%d] [%d]\n",
358 __func__, dfu->i_blk_seq_num, blk_seq_num);
359 return -1;
360 }
361 /* handle rollover */
362 dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff;
363
364 ret = dfu_read_buffer_fill(dfu, buf, size);
365 if (ret < 0) {
366 printf("%s: Failed to fill buffer\n", __func__);
367 return -1;
368 }
369
370 if (ret < size) {
Lukasz Majewskibd694242014-05-12 10:43:36 +0200371 if (dfu_hash_algo)
372 debug("%s: %s %s: 0x%x\n", __func__, dfu->name,
373 dfu_hash_algo->name, dfu->crc);
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000374 puts("\nUPLOAD ... done\nCtrl+C to exit ...\n");
375
376 dfu->i_blk_seq_num = 0;
377 dfu->crc = 0;
378 dfu->offset = 0;
379 dfu->i_buf_start = dfu_buf;
Heiko Schochere7e75c72013-06-12 06:05:51 +0200380 dfu->i_buf_end = dfu_buf;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000381 dfu->i_buf = dfu->i_buf_start;
382 dfu->b_left = 0;
383
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000384 dfu->bad_skip = 0;
385
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000386 dfu->inited = 0;
387 }
388
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200389 return ret;
390}
391
392static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt,
Stephen Warrendd648272014-06-11 16:03:33 -0600393 char *interface, char *devstr)
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200394{
395 char *st;
396
Stephen Warrendd648272014-06-11 16:03:33 -0600397 debug("%s: %s interface: %s dev: %s\n", __func__, s, interface, devstr);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200398 st = strsep(&s, " ");
399 strcpy(dfu->name, st);
400
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200401 dfu->alt = alt;
Stephen Warren7ac1b412014-06-11 16:03:34 -0600402 dfu->max_buf_size = 0;
Stephen Warrencb7bd2e2014-06-11 16:03:35 -0600403 dfu->free_entity = NULL;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200404
405 /* Specific for mmc device */
406 if (strcmp(interface, "mmc") == 0) {
Stephen Warrendd648272014-06-11 16:03:33 -0600407 if (dfu_fill_entity_mmc(dfu, devstr, s))
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200408 return -1;
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000409 } else if (strcmp(interface, "nand") == 0) {
Stephen Warrendd648272014-06-11 16:03:33 -0600410 if (dfu_fill_entity_nand(dfu, devstr, s))
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000411 return -1;
Afzal Mohammeda9479f02013-09-18 01:15:24 +0530412 } else if (strcmp(interface, "ram") == 0) {
Stephen Warrendd648272014-06-11 16:03:33 -0600413 if (dfu_fill_entity_ram(dfu, devstr, s))
Afzal Mohammeda9479f02013-09-18 01:15:24 +0530414 return -1;
Stephen Warren6f12ebf2014-06-11 16:03:36 -0600415 } else if (strcmp(interface, "sf") == 0) {
416 if (dfu_fill_entity_sf(dfu, devstr, s))
417 return -1;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200418 } else {
419 printf("%s: Device %s not (yet) supported!\n",
420 __func__, interface);
421 return -1;
422 }
Stephen Warren806bd242015-09-04 22:03:46 -0600423 dfu_get_buf(dfu);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200424
425 return 0;
426}
427
428void dfu_free_entities(void)
429{
430 struct dfu_entity *dfu, *p, *t = NULL;
431
Stephen Warren806bd242015-09-04 22:03:46 -0600432 dfu_free_buf();
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200433 list_for_each_entry_safe_reverse(dfu, p, &dfu_list, list) {
434 list_del(&dfu->list);
Stephen Warrencb7bd2e2014-06-11 16:03:35 -0600435 if (dfu->free_entity)
436 dfu->free_entity(dfu);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200437 t = dfu;
438 }
439 if (t)
440 free(t);
441 INIT_LIST_HEAD(&dfu_list);
Przemyslaw Marczakb627eb42014-02-28 18:53:37 +0100442
443 alt_num_cnt = 0;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200444}
445
Stephen Warrendd648272014-06-11 16:03:33 -0600446int dfu_config_entities(char *env, char *interface, char *devstr)
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200447{
448 struct dfu_entity *dfu;
449 int i, ret;
450 char *s;
451
452 dfu_alt_num = dfu_find_alt_num(env);
453 debug("%s: dfu_alt_num=%d\n", __func__, dfu_alt_num);
454
Lukasz Majewskibd694242014-05-12 10:43:36 +0200455 dfu_hash_algo = NULL;
456 s = dfu_get_hash_algo();
457 if (s) {
458 ret = hash_lookup_algo(s, &dfu_hash_algo);
459 if (ret)
460 error("Hash algorithm %s not supported\n", s);
461 }
462
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200463 dfu = calloc(sizeof(*dfu), dfu_alt_num);
464 if (!dfu)
465 return -1;
466 for (i = 0; i < dfu_alt_num; i++) {
467
468 s = strsep(&env, ";");
Stephen Warrendd648272014-06-11 16:03:33 -0600469 ret = dfu_fill_entity(&dfu[i], s, alt_num_cnt, interface,
470 devstr);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200471 if (ret)
472 return -1;
473
474 list_add_tail(&dfu[i].list, &dfu_list);
Przemyslaw Marczakb627eb42014-02-28 18:53:37 +0100475 alt_num_cnt++;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200476 }
477
478 return 0;
479}
480
481const char *dfu_get_dev_type(enum dfu_device_type t)
482{
Afzal Mohammeda9479f02013-09-18 01:15:24 +0530483 const char *dev_t[] = {NULL, "eMMC", "OneNAND", "NAND", "RAM" };
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200484 return dev_t[t];
485}
486
487const char *dfu_get_layout(enum dfu_layout l)
488{
489 const char *dfu_layout[] = {NULL, "RAW_ADDR", "FAT", "EXT2",
Afzal Mohammeda9479f02013-09-18 01:15:24 +0530490 "EXT3", "EXT4", "RAM_ADDR" };
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200491 return dfu_layout[l];
492}
493
494void dfu_show_entities(void)
495{
496 struct dfu_entity *dfu;
497
498 puts("DFU alt settings list:\n");
499
500 list_for_each_entry(dfu, &dfu_list, list) {
501 printf("dev: %s alt: %d name: %s layout: %s\n",
502 dfu_get_dev_type(dfu->dev_type), dfu->alt,
503 dfu->name, dfu_get_layout(dfu->layout));
504 }
505}
506
507int dfu_get_alt_number(void)
508{
509 return dfu_alt_num;
510}
511
512struct dfu_entity *dfu_get_entity(int alt)
513{
514 struct dfu_entity *dfu;
515
516 list_for_each_entry(dfu, &dfu_list, list) {
517 if (dfu->alt == alt)
518 return dfu;
519 }
520
521 return NULL;
522}
Lukasz Majewskifed936e2013-10-08 14:30:38 +0200523
524int dfu_get_alt(char *name)
525{
526 struct dfu_entity *dfu;
Lukasz Majewski5610b052014-11-05 10:54:16 +0100527 char *str;
Lukasz Majewskifed936e2013-10-08 14:30:38 +0200528
529 list_for_each_entry(dfu, &dfu_list, list) {
Lukasz Majewski5610b052014-11-05 10:54:16 +0100530 if (dfu->name[0] != '/') {
531 if (!strncmp(dfu->name, name, strlen(dfu->name)))
532 return dfu->alt;
533 } else {
534 /*
535 * One must also consider absolute path
536 * (/boot/bin/uImage) available at dfu->name when
537 * compared "plain" file name (uImage)
538 *
539 * It is the case for e.g. thor gadget where lthor SW
540 * sends only the file name, so only the very last part
541 * of path must be checked for equality
542 */
543
544 str = strstr(dfu->name, name);
545 if (!str)
546 continue;
547
548 /*
549 * Check if matching substring is the last element of
550 * dfu->name (uImage)
551 */
552 if (strlen(dfu->name) ==
553 ((str - dfu->name) + strlen(name)))
554 return dfu->alt;
555 }
Lukasz Majewskifed936e2013-10-08 14:30:38 +0200556 }
557
558 return -ENODEV;
559}
Lukasz Majewski2092e462015-08-24 00:21:46 +0200560
561int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size)
562{
563 unsigned long dfu_buf_size, write, left = size;
564 int i, ret = 0;
565 void *dp = buf;
566
567 /*
568 * Here we must call dfu_get_buf(dfu) first to be sure that dfu_buf_size
569 * has been properly initialized - e.g. if "dfu_bufsiz" has been taken
570 * into account.
571 */
572 dfu_get_buf(dfu);
573 dfu_buf_size = dfu_get_buf_size();
574 debug("%s: dfu buf size: %lu\n", __func__, dfu_buf_size);
575
576 for (i = 0; left > 0; i++) {
577 write = min(dfu_buf_size, left);
578
579 debug("%s: dp: 0x%p left: %lu write: %lu\n", __func__,
580 dp, left, write);
581 ret = dfu_write(dfu, dp, write, i);
582 if (ret) {
583 error("DFU write failed\n");
584 return ret;
585 }
586
587 dp += write;
588 left -= write;
589 }
590
591 ret = dfu_flush(dfu, NULL, 0, i);
592 if (ret)
593 error("DFU flush failed!");
594
595 return ret;
596}