blob: 53deb6f034095d330b285a20a3e8275dc36a0f9a [file] [log] [blame]
Nico Huber454f6132012-12-10 13:34:10 +00001/*
2 * This file is part of the flashrom project.
3 *
4 * Copyright (C) 2012, 2016 secunet Security Networks AG
5 * (Written by Nico Huber <nico.huber@secunet.com> for secunet)
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
Nico Huber454f6132012-12-10 13:34:10 +000016 */
17/**
18 * @mainpage
19 *
20 * Have a look at the Modules section for a function reference.
21 */
22
Nico Huber70461a92019-06-15 14:56:19 +020023#include <errno.h>
Nico Huber454f6132012-12-10 13:34:10 +000024#include <stdlib.h>
25#include <string.h>
26#include <stdarg.h>
27
28#include "flash.h"
Arthur Heymansc82900b2018-01-10 12:48:16 +010029#include "fmap.h"
Nico Huber454f6132012-12-10 13:34:10 +000030#include "programmer.h"
31#include "layout.h"
Nico Huber305f4172013-06-14 11:55:26 +020032#include "hwaccess.h"
33#include "ich_descriptors.h"
Nico Huber454f6132012-12-10 13:34:10 +000034#include "libflashrom.h"
Nikolai Artemievda1c8342021-10-21 00:58:12 +110035#include "writeprotect.h"
Nico Huber454f6132012-12-10 13:34:10 +000036
37/**
38 * @defgroup flashrom-general General
39 * @{
40 */
41
42/** Pointer to log callback function. */
43static flashrom_log_callback *global_log_callback = NULL;
44
45/**
46 * @brief Initialize libflashrom.
47 *
48 * @param perform_selfcheck If not zero, perform a self check.
49 * @return 0 on success
50 */
51int flashrom_init(const int perform_selfcheck)
52{
53 if (perform_selfcheck && selfcheck())
54 return 1;
55 myusec_calibrate_delay();
56 return 0;
57}
58
59/**
60 * @brief Shut down libflashrom.
61 * @return 0 on success
62 */
63int flashrom_shutdown(void)
64{
65 return 0; /* TODO: nothing to do? */
66}
67
68/* TODO: flashrom_set_loglevel()? do we need it?
Angel Pons0be623c2021-04-17 17:08:44 +020069 For now, let the user decide in their callback. */
Nico Huber454f6132012-12-10 13:34:10 +000070
71/**
72 * @brief Set the log callback function.
73 *
74 * Set a callback function which will be invoked whenever libflashrom wants
75 * to output messages. This allows frontends to do whatever they see fit with
76 * such messages, e.g. write them to syslog, or to file, or print them in a
77 * GUI window, etc.
78 *
79 * @param log_callback Pointer to the new log callback function.
80 */
81void flashrom_set_log_callback(flashrom_log_callback *const log_callback)
82{
83 global_log_callback = log_callback;
84}
85/** @private */
Nico Huberd152fb92017-06-19 12:57:10 +020086int print(const enum flashrom_log_level level, const char *const fmt, ...)
Nico Huber454f6132012-12-10 13:34:10 +000087{
88 if (global_log_callback) {
89 int ret;
90 va_list args;
91 va_start(args, fmt);
Nico Huberd152fb92017-06-19 12:57:10 +020092 ret = global_log_callback(level, fmt, args);
Nico Huber454f6132012-12-10 13:34:10 +000093 va_end(args);
94 return ret;
95 }
96 return 0;
97}
98
99/** @} */ /* end flashrom-general */
100
101
102
103/**
104 * @defgroup flashrom-query Querying
105 * @{
106 */
107
Nico Huberabfb70c2022-12-22 12:09:36 +0000108/* TBD */
Nico Huber454f6132012-12-10 13:34:10 +0000109
110/** @} */ /* end flashrom-query */
111
112
113
114/**
115 * @defgroup flashrom-prog Programmers
116 * @{
117 */
118
119/**
120 * @brief Initialize the specified programmer.
121 *
122 * Currently, only one programmer may be initialized at a time.
123 *
124 * @param[out] flashprog Points to a pointer of type struct flashrom_programmer
125 * that will be set if programmer initialization succeeds.
126 * *flashprog has to be shutdown by the caller with @ref
127 * flashrom_programmer_shutdown.
128 * @param[in] prog_name Name of the programmer to initialize.
129 * @param[in] prog_param Pointer to programmer specific parameters.
130 * @return 0 on success
131 */
132int flashrom_programmer_init(struct flashrom_programmer **const flashprog,
133 const char *const prog_name, const char *const prog_param)
134{
135 unsigned prog;
136
137 for (prog = 0; prog < PROGRAMMER_INVALID; prog++) {
138 if (strcmp(prog_name, programmer_table[prog].name) == 0)
139 break;
140 }
141 if (prog >= PROGRAMMER_INVALID) {
142 msg_ginfo("Error: Unknown programmer \"%s\". Valid choices are:\n", prog_name);
143 list_programmers_linebreak(0, 80, 0);
144 return 1;
145 }
146 return programmer_init(prog, prog_param);
147}
148
149/**
150 * @brief Shut down the initialized programmer.
151 *
152 * @param flashprog The programmer to shut down.
153 * @return 0 on success
154 */
155int flashrom_programmer_shutdown(struct flashrom_programmer *const flashprog)
156{
157 return programmer_shutdown();
158}
159
160/* TODO: flashrom_programmer_capabilities()? */
161
162/** @} */ /* end flashrom-prog */
163
164
165
166/**
167 * @defgroup flashrom-flash Flash chips
168 * @{
169 */
170
171/**
172 * @brief Probe for a flash chip.
173 *
174 * Probes for a flash chip and returns a flash context, that can be used
175 * later with flash chip and @ref flashrom-ops "image operations", if
176 * exactly one matching chip is found.
177 *
178 * @param[out] flashctx Points to a pointer of type struct flashrom_flashctx
179 * that will be set if exactly one chip is found. *flashctx
180 * has to be freed by the caller with @ref flashrom_flash_release.
181 * @param[in] flashprog The flash programmer used to access the chip.
182 * @param[in] chip_name Name of a chip to probe for, or NULL to probe for
183 * all known chips.
184 * @return 0 on success,
185 * 3 if multiple chips were found,
186 * 2 if no chip was found,
187 * or 1 on any other error.
188 */
189int flashrom_flash_probe(struct flashrom_flashctx **const flashctx,
190 const struct flashrom_programmer *const flashprog,
191 const char *const chip_name)
192{
193 int i, ret = 2;
194 struct flashrom_flashctx second_flashctx = { 0, };
195
196 chip_to_probe = chip_name; /* chip_to_probe is global in flashrom.c */
197
198 *flashctx = malloc(sizeof(**flashctx));
199 if (!*flashctx)
200 return 1;
201 memset(*flashctx, 0, sizeof(**flashctx));
202
203 for (i = 0; i < registered_master_count; ++i) {
204 int flash_idx = -1;
205 if (!ret || (flash_idx = probe_flash(&registered_masters[i], 0, *flashctx, 0)) != -1) {
206 ret = 0;
207 /* We found one chip, now check that there is no second match. */
208 if (probe_flash(&registered_masters[i], flash_idx + 1, &second_flashctx, 0) != -1) {
209 ret = 3;
210 break;
211 }
212 }
213 }
214 if (ret) {
215 free(*flashctx);
216 *flashctx = NULL;
217 }
218 return ret;
219}
220
221/**
222 * @brief Returns the size of the specified flash chip in bytes.
223 *
224 * @param flashctx The queried flash context.
225 * @return Size of flash chip in bytes.
226 */
227size_t flashrom_flash_getsize(const struct flashrom_flashctx *const flashctx)
228{
229 return flashctx->chip->total_size * 1024;
230}
231
232/**
233 * @brief Free a flash context.
234 *
235 * @param flashctx Flash context to free.
236 */
237void flashrom_flash_release(struct flashrom_flashctx *const flashctx)
238{
239 free(flashctx);
240}
241
242/**
243 * @brief Set a flag in the given flash context.
244 *
245 * @param flashctx Flash context to alter.
246 * @param flag Flag that is to be set / cleared.
247 * @param value Value to set.
248 */
249void flashrom_flag_set(struct flashrom_flashctx *const flashctx,
250 const enum flashrom_flag flag, const bool value)
251{
252 switch (flag) {
253 case FLASHROM_FLAG_FORCE: flashctx->flags.force = value; break;
254 case FLASHROM_FLAG_FORCE_BOARDMISMATCH: flashctx->flags.force_boardmismatch = value; break;
255 case FLASHROM_FLAG_VERIFY_AFTER_WRITE: flashctx->flags.verify_after_write = value; break;
256 case FLASHROM_FLAG_VERIFY_WHOLE_CHIP: flashctx->flags.verify_whole_chip = value; break;
257 }
258}
259
260/**
261 * @brief Return the current value of a flag in the given flash context.
262 *
263 * @param flashctx Flash context to read from.
264 * @param flag Flag to be read.
265 * @return Current value of the flag.
266 */
267bool flashrom_flag_get(const struct flashrom_flashctx *const flashctx, const enum flashrom_flag flag)
268{
269 switch (flag) {
270 case FLASHROM_FLAG_FORCE: return flashctx->flags.force;
271 case FLASHROM_FLAG_FORCE_BOARDMISMATCH: return flashctx->flags.force_boardmismatch;
272 case FLASHROM_FLAG_VERIFY_AFTER_WRITE: return flashctx->flags.verify_after_write;
273 case FLASHROM_FLAG_VERIFY_WHOLE_CHIP: return flashctx->flags.verify_whole_chip;
274 default: return false;
275 }
276}
277
278/** @} */ /* end flashrom-flash */
279
280
281
282/**
283 * @defgroup flashrom-layout Layout handling
284 * @{
285 */
286
287/**
Nico Huber305f4172013-06-14 11:55:26 +0200288 * @brief Read a layout from the Intel ICH descriptor in the flash.
289 *
290 * Optionally verify that the layout matches the one in the given
291 * descriptor dump.
292 *
293 * @param[out] layout Points to a struct flashrom_layout pointer that
294 * gets set if the descriptor is read and parsed
295 * successfully.
296 * @param[in] flashctx Flash context to read the descriptor from flash.
297 * @param[in] dump The descriptor dump to compare to or NULL.
298 * @param[in] len The length of the descriptor dump.
299 *
300 * @return 0 on success,
301 * 6 if descriptor parsing isn't implemented for the host,
302 * 5 if the descriptors don't match,
303 * 4 if the descriptor dump couldn't be parsed,
304 * 3 if the descriptor on flash couldn't be parsed,
305 * 2 if the descriptor on flash couldn't be read,
306 * 1 on any other error.
307 */
308int flashrom_layout_read_from_ifd(struct flashrom_layout **const layout, struct flashctx *const flashctx,
309 const void *const dump, const size_t len)
310{
311#ifndef __FLASHROM_LITTLE_ENDIAN__
312 return 6;
313#else
314 struct ich_layout dump_layout;
315 int ret = 1;
316
317 void *const desc = malloc(0x1000);
318 struct ich_layout *const chip_layout = malloc(sizeof(*chip_layout));
319 if (!desc || !chip_layout) {
320 msg_gerr("Out of memory!\n");
321 goto _free_ret;
322 }
323
324 if (prepare_flash_access(flashctx, true, false, false, false))
325 goto _free_ret;
326
327 msg_cinfo("Reading ich descriptor... ");
328 if (flashctx->chip->read(flashctx, desc, 0, 0x1000)) {
329 msg_cerr("Read operation failed!\n");
330 msg_cinfo("FAILED.\n");
331 ret = 2;
332 goto _finalize_ret;
333 }
334 msg_cinfo("done.\n");
335
336 if (layout_from_ich_descriptors(chip_layout, desc, 0x1000)) {
Patrick Rudolph911b8d82019-06-06 11:23:55 +0200337 msg_cerr("Couldn't parse the descriptor!\n");
Nico Huber305f4172013-06-14 11:55:26 +0200338 ret = 3;
339 goto _finalize_ret;
340 }
341
342 if (dump) {
343 if (layout_from_ich_descriptors(&dump_layout, dump, len)) {
Patrick Rudolph911b8d82019-06-06 11:23:55 +0200344 msg_cerr("Couldn't parse the descriptor!\n");
Nico Huber305f4172013-06-14 11:55:26 +0200345 ret = 4;
346 goto _finalize_ret;
347 }
348
349 if (chip_layout->base.num_entries != dump_layout.base.num_entries ||
350 memcmp(chip_layout->entries, dump_layout.entries, sizeof(dump_layout.entries))) {
Patrick Rudolph911b8d82019-06-06 11:23:55 +0200351 msg_cerr("Descriptors don't match!\n");
Nico Huber305f4172013-06-14 11:55:26 +0200352 ret = 5;
353 goto _finalize_ret;
354 }
355 }
356
357 *layout = (struct flashrom_layout *)chip_layout;
358 ret = 0;
359
360_finalize_ret:
361 finalize_flash_access(flashctx);
362_free_ret:
363 if (ret)
364 free(chip_layout);
365 free(desc);
366 return ret;
367#endif
368}
369
Nico Huberee13d0c2019-06-07 17:47:40 +0200370#ifdef __FLASHROM_LITTLE_ENDIAN__
Arthur Heymansc82900b2018-01-10 12:48:16 +0100371static int flashrom_layout_parse_fmap(struct flashrom_layout **layout,
372 struct flashctx *const flashctx, const struct fmap *const fmap)
373{
374 int i;
375 struct flashrom_layout *l = get_global_layout();
376
377 if (!fmap || !l)
378 return 1;
379
380 if (l->num_entries + fmap->nareas > MAX_ROMLAYOUT) {
381 msg_gerr("Cannot add fmap entries to layout - Too many entries.\n");
382 return 1;
383 }
384
385 for (i = 0; i < fmap->nareas; i++) {
386 l->entries[l->num_entries].start = fmap->areas[i].offset;
387 l->entries[l->num_entries].end = fmap->areas[i].offset + fmap->areas[i].size - 1;
388 l->entries[l->num_entries].included = false;
Nico Huber70461a92019-06-15 14:56:19 +0200389 l->entries[l->num_entries].name =
390 strndup((const char *)fmap->areas[i].name, FMAP_STRLEN);
391 if (!l->entries[l->num_entries].name) {
392 msg_gerr("Error adding layout entry: %s\n", strerror(errno));
393 return 1;
394 }
Arthur Heymansc82900b2018-01-10 12:48:16 +0100395 msg_gdbg("fmap %08x - %08x named %s\n",
396 l->entries[l->num_entries].start,
397 l->entries[l->num_entries].end,
398 l->entries[l->num_entries].name);
399 l->num_entries++;
400 }
401
402 *layout = l;
403 return 0;
404}
Nico Huberee13d0c2019-06-07 17:47:40 +0200405#endif /* __FLASHROM_LITTLE_ENDIAN__ */
Arthur Heymansc82900b2018-01-10 12:48:16 +0100406
407/**
408 * @brief Read a layout by searching the flash chip for fmap.
409 *
410 * @param[out] layout Points to a struct flashrom_layout pointer that
411 * gets set if the fmap is read and parsed successfully.
412 * @param[in] flashctx Flash context
413 * @param[in] offset Offset to begin searching for fmap.
414 * @param[in] offset Length of address space to search.
415 *
416 * @return 0 on success,
417 * 3 if fmap parsing isn't implemented for the host,
418 * 2 if the fmap couldn't be read,
419 * 1 on any other error.
420 */
421int flashrom_layout_read_fmap_from_rom(struct flashrom_layout **const layout,
422 struct flashctx *const flashctx, off_t offset, size_t len)
423{
424#ifndef __FLASHROM_LITTLE_ENDIAN__
425 return 3;
426#else
427 struct fmap *fmap = NULL;
428 int ret = 0;
429
430 msg_gdbg("Attempting to read fmap from ROM content.\n");
431 if (fmap_read_from_rom(&fmap, flashctx, offset, len)) {
432 msg_gerr("Failed to read fmap from ROM.\n");
433 return 1;
434 }
435
436 msg_gdbg("Adding fmap layout to global layout.\n");
437 if (flashrom_layout_parse_fmap(layout, flashctx, fmap)) {
438 msg_gerr("Failed to add fmap regions to layout.\n");
439 ret = 1;
440 }
441
442 free(fmap);
443 return ret;
444#endif
445}
446
447/**
448 * @brief Read a layout by searching buffer for fmap.
449 *
450 * @param[out] layout Points to a struct flashrom_layout pointer that
451 * gets set if the fmap is read and parsed successfully.
452 * @param[in] flashctx Flash context
453 * @param[in] buffer Buffer to search in
454 * @param[in] size Size of buffer to search
455 *
456 * @return 0 on success,
457 * 3 if fmap parsing isn't implemented for the host,
458 * 2 if the fmap couldn't be read,
459 * 1 on any other error.
460 */
461int flashrom_layout_read_fmap_from_buffer(struct flashrom_layout **const layout,
462 struct flashctx *const flashctx, const uint8_t *const buf, size_t size)
463{
464#ifndef __FLASHROM_LITTLE_ENDIAN__
465 return 3;
466#else
467 struct fmap *fmap = NULL;
468 int ret = 1;
469
470 if (!buf || !size)
471 goto _ret;
472
473 msg_gdbg("Attempting to read fmap from buffer.\n");
474 if (fmap_read_from_buffer(&fmap, buf, size)) {
475 msg_gerr("Failed to read fmap from buffer.\n");
476 goto _ret;
477 }
478
479 msg_gdbg("Adding fmap layout to global layout.\n");
480 if (flashrom_layout_parse_fmap(layout, flashctx, fmap)) {
481 msg_gerr("Failed to add fmap regions to layout.\n");
482 goto _free_ret;
483 }
484
485 ret = 0;
486_free_ret:
487 free(fmap);
488_ret:
489 return ret;
490#endif
491}
492
Nico Huber305f4172013-06-14 11:55:26 +0200493/**
Nico Huber454f6132012-12-10 13:34:10 +0000494 * @brief Set the active layout for a flash context.
495 *
496 * Note: This just sets a pointer. The caller must not release the layout
497 * as long as he uses it through the given flash context.
498 *
499 * @param flashctx Flash context whose layout will be set.
500 * @param layout Layout to bet set.
501 */
502void flashrom_layout_set(struct flashrom_flashctx *const flashctx, const struct flashrom_layout *const layout)
503{
504 flashctx->layout = layout;
505}
506
507/** @} */ /* end flashrom-layout */
Nikolai Artemievda1c8342021-10-21 00:58:12 +1100508
509
510/**
511 * @defgroup flashrom-wp
512 * @{
513 */
514
515/**
516 * @brief Create a new empty WP configuration.
517 *
518 * @param[out] cfg Points to a pointer of type struct flashrom_wp_cfg that will
519 * be set if creation succeeds. *cfg has to be freed by the
520 * caller with @ref flashrom_wp_cfg_release.
521 * @return 0 on success
522 * >0 on failure
523 */
524enum flashrom_wp_result flashrom_wp_cfg_new(struct flashrom_wp_cfg **cfg)
525{
526 *cfg = calloc(1, sizeof(**cfg));
527 return *cfg ? 0 : FLASHROM_WP_ERR_OTHER;
528}
529
530/**
531 * @brief Free a WP configuration.
532 *
533 * @param[out] cfg Pointer to the flashrom_wp_cfg to free.
534 */
535void flashrom_wp_cfg_release(struct flashrom_wp_cfg *cfg)
536{
537 free(cfg);
538}
539
540/**
541 * @brief Set the protection mode for a WP configuration.
542 *
543 * @param[in] mode The protection mode to set.
544 * @param[out] cfg Pointer to the flashrom_wp_cfg structure to modify.
545 */
546void flashrom_wp_set_mode(struct flashrom_wp_cfg *cfg, enum flashrom_wp_mode mode)
547{
548 cfg->mode = mode;
549}
550
551/**
552 * @brief Get the protection mode from a WP configuration.
553 *
554 * @param[in] cfg The WP configuration to get the protection mode from.
555 * @return The configuration's protection mode.
556 */
557enum flashrom_wp_mode flashrom_wp_get_mode(const struct flashrom_wp_cfg *cfg)
558{
559 return cfg->mode;
560}
561
562/**
563 * @brief Set the protection range for a WP configuration.
564 *
565 * @param[out] cfg Pointer to the flashrom_wp_cfg structure to modify.
566 * @param[in] start The range's start address.
567 * @param[in] len The range's length.
568 */
569void flashrom_wp_set_range(struct flashrom_wp_cfg *cfg, size_t start, size_t len)
570{
571 cfg->range.start = start;
572 cfg->range.len = len;
573}
574
575/**
576 * @brief Get the protection range from a WP configuration.
577 *
578 * @param[out] start Points to a size_t to write the range start to.
579 * @param[out] len Points to a size_t to write the range length to.
580 * @param[in] cfg The WP configuration to get the range from.
581 */
582void flashrom_wp_get_range(size_t *start, size_t *len, const struct flashrom_wp_cfg *cfg)
583{
584 *start = cfg->range.start;
585 *len = cfg->range.len;
586}
587
588/**
589 * @brief Write a WP configuration to a flash chip.
590 *
591 * @param[in] flash The flash context used to access the chip.
592 * @param[in] cfg The WP configuration to write to the chip.
593 * @return 0 on success
594 * >0 on failure
595 */
596enum flashrom_wp_result flashrom_wp_write_cfg(struct flashctx *flash, const struct flashrom_wp_cfg *cfg)
597{
598 /*
599 * TODO: Call custom implementation if the programmer is opaque, as
600 * direct WP operations require SPI access. In particular, linux_mtd
601 * has its own WP operations we should use instead.
602 */
603 if (flash->mst->buses_supported & BUS_SPI)
604 return wp_write_cfg(flash, cfg);
605
606 return FLASHROM_WP_ERR_OTHER;
607}
608
609/**
610 * @brief Read the current WP configuration from a flash chip.
611 *
612 * @param[out] cfg Pointer to a struct flashrom_wp_cfg to store the chip's
613 * configuration in.
614 * @param[in] flash The flash context used to access the chip.
615 * @return 0 on success
616 * >0 on failure
617 */
618enum flashrom_wp_result flashrom_wp_read_cfg(struct flashrom_wp_cfg *cfg, struct flashctx *flash)
619{
620 /*
621 * TODO: Call custom implementation if the programmer is opaque, as
622 * direct WP operations require SPI access. In particular, linux_mtd
623 * has its own WP operations we should use instead.
624 */
625 if (flash->mst->buses_supported & BUS_SPI)
626 return wp_read_cfg(cfg, flash);
627
628 return FLASHROM_WP_ERR_OTHER;
629}
630
Nikolai Artemiev077c0d12021-10-21 01:50:15 +1100631/**
632 * @brief Get a list of protection ranges supported by the flash chip.
633 *
634 * @param[out] ranges Points to a pointer of type struct flashrom_wp_ranges
635 * that will be set if available ranges are found. Finding
636 * available ranges may not always be possible, even if the
637 * chip's protection range can be read or modified. *ranges
638 * must be freed using @ref flashrom_wp_ranges_free.
639 * @param[in] flash The flash context used to access the chip.
640 * @return 0 on success
641 * >0 on failure
642 */
643enum flashrom_wp_result flashrom_wp_get_available_ranges(struct flashrom_wp_ranges **list, struct flashrom_flashctx *flash)
644{
645 /*
646 * TODO: Call custom implementation if the programmer is opaque, as
647 * direct WP operations require SPI access. We actually can't implement
648 * this in linux_mtd right now, but we should adopt a proper generic
649 * architechure to match the read and write functions anyway.
650 */
651 if (flash->mst->buses_supported & BUS_SPI)
652 return wp_get_available_ranges(list, flash);
653
654 return FLASHROM_WP_ERR_OTHER;
655}
656
657/**
658 * @brief Get a number of protection ranges in a range list.
659 *
660 * @param[in] ranges The range list to get the count from.
661 * @return Number of ranges in the list.
662 */
663size_t flashrom_wp_ranges_get_count(const struct flashrom_wp_ranges *list)
664{
665 return list->count;
666}
667
668/**
669 * @brief Get a protection range from a range list.
670 *
671 * @param[out] start Points to a size_t to write the range's start to.
672 * @param[out] len Points to a size_t to write the range's length to.
673 * @param[in] ranges The range list to get the range from.
674 * @param[in] index Index of the range to get.
675 * @return 0 on success
676 * >0 on failure
677 */
678enum flashrom_wp_result flashrom_wp_ranges_get_range(size_t *start, size_t *len, const struct flashrom_wp_ranges *list, unsigned int index)
679{
680 if (index >= list->count)
681 return FLASHROM_WP_ERR_OTHER;
682
683 *start = list->ranges[index].start;
684 *len = list->ranges[index].len;
685
686 return 0;
687}
688
689/**
690 * @brief Free a WP range list.
691 *
692 * @param[out] cfg Pointer to the flashrom_wp_ranges to free.
693 */
694void flashrom_wp_ranges_release(struct flashrom_wp_ranges *list)
695{
696 if (!list)
697 return;
698
699 free(list->ranges);
700 free(list);
701}
702
703
Nikolai Artemievda1c8342021-10-21 00:58:12 +1100704/** @} */ /* end flashrom-wp */