1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
20 #include <flash_map/flash_map.h>
21 #include <flash_map_backend/flash_map_backend.h>
22 #include <hal/hal_bsp.h>
23 #include <hal/hal_flash_int.h>
24
flash_area_id_from_multi_image_slot(int image_index,int slot)25 int flash_area_id_from_multi_image_slot(int image_index, int slot)
26 {
27 switch (slot) {
28 case 0: return FLASH_AREA_IMAGE_PRIMARY(image_index);
29 case 1: return FLASH_AREA_IMAGE_SECONDARY(image_index);
30 #if MCUBOOT_SWAP_USING_SCRATCH
31 case 2: return FLASH_AREA_IMAGE_SCRATCH;
32 #endif
33 }
34 return 255;
35 }
36
flash_area_id_to_multi_image_slot(int image_index,int area_id)37 int flash_area_id_to_multi_image_slot(int image_index, int area_id)
38 {
39 if (area_id == FLASH_AREA_IMAGE_PRIMARY(image_index)) {
40 return 0;
41 }
42 if (area_id == FLASH_AREA_IMAGE_SECONDARY(image_index)) {
43 return 1;
44 }
45 return 255;
46 }
47
flash_area_sector_from_off(off_t off,struct flash_sector * sector)48 int flash_area_sector_from_off(off_t off, struct flash_sector *sector)
49 {
50 const struct flash_area *fa;
51 const struct hal_flash *hf;
52 uint32_t start;
53 uint32_t size;
54 int rc;
55 int i;
56
57 rc = flash_area_open(FLASH_AREA_IMAGE_0, &fa);
58 if (rc != 0) {
59 return -1;
60 }
61
62 rc = -1;
63 hf = hal_bsp_flash_dev(fa->fa_device_id);
64 for (i = 0; i < hf->hf_sector_cnt; i++) {
65 hf->hf_itf->hff_sector_info(hf, i, &start, &size);
66 if (start < fa->fa_off) {
67 continue;
68 }
69 if (off >= start - fa->fa_off && off <= (start - fa->fa_off) + size) {
70 sector->fs_off = start - fa->fa_off;
71 sector->fs_size = size;
72 rc = 0;
73 break;
74 }
75 }
76
77 flash_area_close(fa);
78 return rc;
79 }
80
