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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;
79static unsigned long dfu_buf_size = CONFIG_SYS_DFU_DATA_BUF_SIZE;
80
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 */
167 dfu_free_buf();
168 dfu->crc = 0;
169 dfu->offset = 0;
170 dfu->i_blk_seq_num = 0;
171 dfu->i_buf_start = dfu_buf;
172 dfu->i_buf_end = dfu_buf;
173 dfu->i_buf = dfu->i_buf_start;
174 dfu->inited = 0;
175}
176
Heiko Schochera2199af2014-03-18 08:09:55 +0100177int dfu_flush(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
178{
179 int ret = 0;
180
Przemyslaw Marczak1aa4bdc2014-05-12 12:05:33 +0200181 ret = dfu_write_buffer_drain(dfu);
182 if (ret)
183 return ret;
184
Heiko Schochera2199af2014-03-18 08:09:55 +0100185 if (dfu->flush_medium)
186 ret = dfu->flush_medium(dfu);
187
Lukasz Majewskibd694242014-05-12 10:43:36 +0200188 if (dfu_hash_algo)
189 printf("\nDFU complete %s: 0x%08x\n", dfu_hash_algo->name,
190 dfu->crc);
Heiko Schochera2199af2014-03-18 08:09:55 +0100191
Stephen Warren3ee95932014-06-11 12:48:08 -0600192 dfu_write_transaction_cleanup(dfu);
Heiko Schochera2199af2014-03-18 08:09:55 +0100193
194 return ret;
195}
196
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000197int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200198{
Stephen Warren3ee95932014-06-11 12:48:08 -0600199 int ret;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200200
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000201 debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x offset: 0x%llx bufoffset: 0x%x\n",
202 __func__, dfu->name, buf, size, blk_seq_num, dfu->offset,
203 dfu->i_buf - dfu->i_buf_start);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200204
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000205 if (!dfu->inited) {
206 /* initial state */
207 dfu->crc = 0;
208 dfu->offset = 0;
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000209 dfu->bad_skip = 0;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000210 dfu->i_blk_seq_num = 0;
Stephen Warren7ac1b412014-06-11 16:03:34 -0600211 dfu->i_buf_start = dfu_get_buf(dfu);
Heiko Schochere7e75c72013-06-12 06:05:51 +0200212 if (dfu->i_buf_start == NULL)
213 return -ENOMEM;
Stephen Warren7ac1b412014-06-11 16:03:34 -0600214 dfu->i_buf_end = dfu_get_buf(dfu) + dfu_buf_size;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000215 dfu->i_buf = dfu->i_buf_start;
216
217 dfu->inited = 1;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200218 }
219
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000220 if (dfu->i_blk_seq_num != blk_seq_num) {
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200221 printf("%s: Wrong sequence number! [%d] [%d]\n",
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000222 __func__, dfu->i_blk_seq_num, blk_seq_num);
Stephen Warren3ee95932014-06-11 12:48:08 -0600223 dfu_write_transaction_cleanup(dfu);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200224 return -1;
225 }
226
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000227 /* DFU 1.1 standard says:
228 * The wBlockNum field is a block sequence number. It increments each
229 * time a block is transferred, wrapping to zero from 65,535. It is used
230 * to provide useful context to the DFU loader in the device."
231 *
232 * This means that it's a 16 bit counter that roll-overs at
233 * 0xffff -> 0x0000. By having a typical 4K transfer block
234 * we roll-over at exactly 256MB. Not very fun to debug.
235 *
236 * Handling rollover, and having an inited variable,
237 * makes things work.
238 */
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200239
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000240 /* handle rollover */
241 dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff;
242
243 /* flush buffer if overflow */
244 if ((dfu->i_buf + size) > dfu->i_buf_end) {
Stephen Warren3ee95932014-06-11 12:48:08 -0600245 ret = dfu_write_buffer_drain(dfu);
246 if (ret) {
247 dfu_write_transaction_cleanup(dfu);
248 return ret;
249 }
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200250 }
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000251
252 /* we should be in buffer now (if not then size too large) */
253 if ((dfu->i_buf + size) > dfu->i_buf_end) {
Lukasz Majewskia7d2c3c2013-09-10 15:29:22 +0200254 error("Buffer overflow! (0x%p + 0x%x > 0x%p)\n", dfu->i_buf,
255 size, dfu->i_buf_end);
Stephen Warren3ee95932014-06-11 12:48:08 -0600256 dfu_write_transaction_cleanup(dfu);
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000257 return -1;
258 }
259
260 memcpy(dfu->i_buf, buf, size);
261 dfu->i_buf += size;
262
263 /* if end or if buffer full flush */
264 if (size == 0 || (dfu->i_buf + size) > dfu->i_buf_end) {
Stephen Warren3ee95932014-06-11 12:48:08 -0600265 ret = dfu_write_buffer_drain(dfu);
266 if (ret) {
267 dfu_write_transaction_cleanup(dfu);
268 return ret;
269 }
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000270 }
271
Stephen Warren3ee95932014-06-11 12:48:08 -0600272 return 0;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000273}
274
275static int dfu_read_buffer_fill(struct dfu_entity *dfu, void *buf, int size)
276{
277 long chunk;
278 int ret, readn;
279
280 readn = 0;
281 while (size > 0) {
282 /* get chunk that can be read */
Masahiro Yamadab4141192014-11-07 03:03:31 +0900283 chunk = min((long)size, dfu->b_left);
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000284 /* consume */
285 if (chunk > 0) {
286 memcpy(buf, dfu->i_buf, chunk);
Lukasz Majewskibd694242014-05-12 10:43:36 +0200287 if (dfu_hash_algo)
288 dfu_hash_algo->hash_update(dfu_hash_algo,
289 &dfu->crc, buf,
290 chunk, 0);
291
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000292 dfu->i_buf += chunk;
293 dfu->b_left -= chunk;
294 size -= chunk;
295 buf += chunk;
296 readn += chunk;
297 }
298
299 /* all done */
300 if (size > 0) {
301 /* no more to read */
302 if (dfu->r_left == 0)
303 break;
304
305 dfu->i_buf = dfu->i_buf_start;
306 dfu->b_left = dfu->i_buf_end - dfu->i_buf_start;
307
308 /* got to read, but buffer is empty */
309 if (dfu->b_left > dfu->r_left)
310 dfu->b_left = dfu->r_left;
311 ret = dfu->read_medium(dfu, dfu->offset, dfu->i_buf,
312 &dfu->b_left);
313 if (ret != 0) {
314 debug("%s: Read error!\n", __func__);
315 return ret;
316 }
317 dfu->offset += dfu->b_left;
318 dfu->r_left -= dfu->b_left;
319
320 puts("#");
321 }
322 }
323
324 return readn;
325}
326
327int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num)
328{
329 int ret = 0;
330
331 debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n",
332 __func__, dfu->name, buf, size, blk_seq_num, dfu->i_buf);
333
334 if (!dfu->inited) {
Stephen Warren7ac1b412014-06-11 16:03:34 -0600335 dfu->i_buf_start = dfu_get_buf(dfu);
Łukasz Majewski9df49552013-06-28 18:41:50 +0200336 if (dfu->i_buf_start == NULL)
337 return -ENOMEM;
338
Stephen Warren0e285b52014-06-11 12:47:27 -0600339 dfu->r_left = dfu->get_medium_size(dfu);
340 if (dfu->r_left < 0)
341 return dfu->r_left;
342 switch (dfu->layout) {
343 case DFU_RAW_ADDR:
344 case DFU_RAM_ADDR:
345 break;
346 default:
Stephen Warren67ab0a52014-07-01 12:16:57 -0600347 if (dfu->r_left > dfu_buf_size) {
Stephen Warren0e285b52014-06-11 12:47:27 -0600348 printf("%s: File too big for buffer\n",
349 __func__);
350 return -EOVERFLOW;
351 }
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000352 }
353
354 debug("%s: %s %ld [B]\n", __func__, dfu->name, dfu->r_left);
355
356 dfu->i_blk_seq_num = 0;
357 dfu->crc = 0;
358 dfu->offset = 0;
Stephen Warren7ac1b412014-06-11 16:03:34 -0600359 dfu->i_buf_end = dfu_get_buf(dfu) + dfu_buf_size;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000360 dfu->i_buf = dfu->i_buf_start;
Stephen Warren0e285b52014-06-11 12:47:27 -0600361 dfu->b_left = 0;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000362
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000363 dfu->bad_skip = 0;
364
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000365 dfu->inited = 1;
366 }
367
368 if (dfu->i_blk_seq_num != blk_seq_num) {
369 printf("%s: Wrong sequence number! [%d] [%d]\n",
370 __func__, dfu->i_blk_seq_num, blk_seq_num);
371 return -1;
372 }
373 /* handle rollover */
374 dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff;
375
376 ret = dfu_read_buffer_fill(dfu, buf, size);
377 if (ret < 0) {
378 printf("%s: Failed to fill buffer\n", __func__);
379 return -1;
380 }
381
382 if (ret < size) {
Lukasz Majewskibd694242014-05-12 10:43:36 +0200383 if (dfu_hash_algo)
384 debug("%s: %s %s: 0x%x\n", __func__, dfu->name,
385 dfu_hash_algo->name, dfu->crc);
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000386 puts("\nUPLOAD ... done\nCtrl+C to exit ...\n");
387
Heiko Schochere7e75c72013-06-12 06:05:51 +0200388 dfu_free_buf();
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000389 dfu->i_blk_seq_num = 0;
390 dfu->crc = 0;
391 dfu->offset = 0;
392 dfu->i_buf_start = dfu_buf;
Heiko Schochere7e75c72013-06-12 06:05:51 +0200393 dfu->i_buf_end = dfu_buf;
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000394 dfu->i_buf = dfu->i_buf_start;
395 dfu->b_left = 0;
396
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000397 dfu->bad_skip = 0;
398
Pantelis Antoniouea2453d2013-03-14 05:32:48 +0000399 dfu->inited = 0;
400 }
401
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200402 return ret;
403}
404
405static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt,
Stephen Warrendd648272014-06-11 16:03:33 -0600406 char *interface, char *devstr)
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200407{
408 char *st;
409
Stephen Warrendd648272014-06-11 16:03:33 -0600410 debug("%s: %s interface: %s dev: %s\n", __func__, s, interface, devstr);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200411 st = strsep(&s, " ");
412 strcpy(dfu->name, st);
413
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200414 dfu->alt = alt;
Stephen Warren7ac1b412014-06-11 16:03:34 -0600415 dfu->max_buf_size = 0;
Stephen Warrencb7bd2e2014-06-11 16:03:35 -0600416 dfu->free_entity = NULL;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200417
418 /* Specific for mmc device */
419 if (strcmp(interface, "mmc") == 0) {
Stephen Warrendd648272014-06-11 16:03:33 -0600420 if (dfu_fill_entity_mmc(dfu, devstr, s))
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200421 return -1;
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000422 } else if (strcmp(interface, "nand") == 0) {
Stephen Warrendd648272014-06-11 16:03:33 -0600423 if (dfu_fill_entity_nand(dfu, devstr, s))
Pantelis Antoniouc6631762013-03-14 05:32:52 +0000424 return -1;
Afzal Mohammeda9479f02013-09-18 01:15:24 +0530425 } else if (strcmp(interface, "ram") == 0) {
Stephen Warrendd648272014-06-11 16:03:33 -0600426 if (dfu_fill_entity_ram(dfu, devstr, s))
Afzal Mohammeda9479f02013-09-18 01:15:24 +0530427 return -1;
Stephen Warren6f12ebf2014-06-11 16:03:36 -0600428 } else if (strcmp(interface, "sf") == 0) {
429 if (dfu_fill_entity_sf(dfu, devstr, s))
430 return -1;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200431 } else {
432 printf("%s: Device %s not (yet) supported!\n",
433 __func__, interface);
434 return -1;
435 }
436
437 return 0;
438}
439
440void dfu_free_entities(void)
441{
442 struct dfu_entity *dfu, *p, *t = NULL;
443
444 list_for_each_entry_safe_reverse(dfu, p, &dfu_list, list) {
445 list_del(&dfu->list);
Stephen Warrencb7bd2e2014-06-11 16:03:35 -0600446 if (dfu->free_entity)
447 dfu->free_entity(dfu);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200448 t = dfu;
449 }
450 if (t)
451 free(t);
452 INIT_LIST_HEAD(&dfu_list);
Przemyslaw Marczakb627eb42014-02-28 18:53:37 +0100453
454 alt_num_cnt = 0;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200455}
456
Stephen Warrendd648272014-06-11 16:03:33 -0600457int dfu_config_entities(char *env, char *interface, char *devstr)
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200458{
459 struct dfu_entity *dfu;
460 int i, ret;
461 char *s;
462
463 dfu_alt_num = dfu_find_alt_num(env);
464 debug("%s: dfu_alt_num=%d\n", __func__, dfu_alt_num);
465
Lukasz Majewskibd694242014-05-12 10:43:36 +0200466 dfu_hash_algo = NULL;
467 s = dfu_get_hash_algo();
468 if (s) {
469 ret = hash_lookup_algo(s, &dfu_hash_algo);
470 if (ret)
471 error("Hash algorithm %s not supported\n", s);
472 }
473
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200474 dfu = calloc(sizeof(*dfu), dfu_alt_num);
475 if (!dfu)
476 return -1;
477 for (i = 0; i < dfu_alt_num; i++) {
478
479 s = strsep(&env, ";");
Stephen Warrendd648272014-06-11 16:03:33 -0600480 ret = dfu_fill_entity(&dfu[i], s, alt_num_cnt, interface,
481 devstr);
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200482 if (ret)
483 return -1;
484
485 list_add_tail(&dfu[i].list, &dfu_list);
Przemyslaw Marczakb627eb42014-02-28 18:53:37 +0100486 alt_num_cnt++;
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200487 }
488
489 return 0;
490}
491
492const char *dfu_get_dev_type(enum dfu_device_type t)
493{
Afzal Mohammeda9479f02013-09-18 01:15:24 +0530494 const char *dev_t[] = {NULL, "eMMC", "OneNAND", "NAND", "RAM" };
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200495 return dev_t[t];
496}
497
498const char *dfu_get_layout(enum dfu_layout l)
499{
500 const char *dfu_layout[] = {NULL, "RAW_ADDR", "FAT", "EXT2",
Afzal Mohammeda9479f02013-09-18 01:15:24 +0530501 "EXT3", "EXT4", "RAM_ADDR" };
Lukasz Majewskif22b11c2012-08-06 14:41:07 +0200502 return dfu_layout[l];
503}
504
505void dfu_show_entities(void)
506{
507 struct dfu_entity *dfu;
508
509 puts("DFU alt settings list:\n");
510
511 list_for_each_entry(dfu, &dfu_list, list) {
512 printf("dev: %s alt: %d name: %s layout: %s\n",
513 dfu_get_dev_type(dfu->dev_type), dfu->alt,
514 dfu->name, dfu_get_layout(dfu->layout));
515 }
516}
517
518int dfu_get_alt_number(void)
519{
520 return dfu_alt_num;
521}
522
523struct dfu_entity *dfu_get_entity(int alt)
524{
525 struct dfu_entity *dfu;
526
527 list_for_each_entry(dfu, &dfu_list, list) {
528 if (dfu->alt == alt)
529 return dfu;
530 }
531
532 return NULL;
533}
Lukasz Majewskifed936e2013-10-08 14:30:38 +0200534
535int dfu_get_alt(char *name)
536{
537 struct dfu_entity *dfu;
Lukasz Majewski5610b052014-11-05 10:54:16 +0100538 char *str;
Lukasz Majewskifed936e2013-10-08 14:30:38 +0200539
540 list_for_each_entry(dfu, &dfu_list, list) {
Lukasz Majewski5610b052014-11-05 10:54:16 +0100541 if (dfu->name[0] != '/') {
542 if (!strncmp(dfu->name, name, strlen(dfu->name)))
543 return dfu->alt;
544 } else {
545 /*
546 * One must also consider absolute path
547 * (/boot/bin/uImage) available at dfu->name when
548 * compared "plain" file name (uImage)
549 *
550 * It is the case for e.g. thor gadget where lthor SW
551 * sends only the file name, so only the very last part
552 * of path must be checked for equality
553 */
554
555 str = strstr(dfu->name, name);
556 if (!str)
557 continue;
558
559 /*
560 * Check if matching substring is the last element of
561 * dfu->name (uImage)
562 */
563 if (strlen(dfu->name) ==
564 ((str - dfu->name) + strlen(name)))
565 return dfu->alt;
566 }
Lukasz Majewskifed936e2013-10-08 14:30:38 +0200567 }
568
569 return -ENODEV;
570}