1 /*
2 * Copyright (c) 2017 Nordic Semiconductor ASA
3 * Copyright (c) 2015 Runtime Inc
4 *
5 * SPDX-License-Identifier: Apache-2.0
6 */
7
8 #include <zephyr/fs/fcb.h>
9 #include "fcb_priv.h"
10
11 /*
12 * Call 'cb' for every element in flash circular buffer. If sector is specified,
13 * only elements with that flash_sector are reported.
14 */
15 int
fcb_walk(struct fcb * fcb,struct flash_sector * sector,fcb_walk_cb cb,void * cb_arg)16 fcb_walk(struct fcb *fcb, struct flash_sector *sector, fcb_walk_cb cb,
17 void *cb_arg)
18 {
19 struct fcb_entry_ctx entry_ctx;
20 int rc;
21
22 entry_ctx.loc.fe_sector = sector;
23 entry_ctx.loc.fe_elem_off = 0U;
24
25 rc = k_mutex_lock(&fcb->f_mtx, K_FOREVER);
26 if (rc < 0) {
27 return -EINVAL;
28 }
29 while ((rc = fcb_getnext_nolock(fcb, &entry_ctx.loc)) !=
30 -ENOTSUP) {
31 k_mutex_unlock(&fcb->f_mtx);
32 if (sector && entry_ctx.loc.fe_sector != sector) {
33 return 0;
34 }
35
36 entry_ctx.fap = fcb->fap;
37
38 rc = cb(&entry_ctx, cb_arg);
39 if (rc) {
40 return rc;
41 }
42 rc = k_mutex_lock(&fcb->f_mtx, K_FOREVER);
43 if (rc < 0) {
44 return -EINVAL;
45 }
46 }
47 k_mutex_unlock(&fcb->f_mtx);
48 return 0;
49 }
50
