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 #ifndef MCUBOOT_SINGLE_APPLICATION_SLOT
30 case 1: return FLASH_AREA_IMAGE_SECONDARY(image_index);
31 #endif
32 #if MCUBOOT_SWAP_USING_SCRATCH
33 case 2: return FLASH_AREA_IMAGE_SCRATCH;
34 #endif
35 }
36 return 255;
37 }
38
flash_area_id_to_multi_image_slot(int image_index,int area_id)39 int flash_area_id_to_multi_image_slot(int image_index, int area_id)
40 {
41 if (area_id == FLASH_AREA_IMAGE_PRIMARY(image_index)) {
42 return 0;
43 }
44 #ifndef MCUBOOT_SINGLE_APPLICATION_SLOT
45 if (area_id == FLASH_AREA_IMAGE_SECONDARY(image_index)) {
46 return 1;
47 }
48 #endif
49 return 255;
50 }
51
flash_area_sector_from_off(off_t off,struct flash_sector * sector)52 int flash_area_sector_from_off(off_t off, struct flash_sector *sector)
53 {
54 const struct flash_area *fa;
55 const struct hal_flash *hf;
56 uint32_t start;
57 uint32_t size;
58 int rc;
59 int i;
60
61 rc = flash_area_open(FLASH_AREA_IMAGE_0, &fa);
62 if (rc != 0) {
63 return -1;
64 }
65
66 rc = -1;
67 hf = hal_bsp_flash_dev(fa->fa_device_id);
68 for (i = 0; i < hf->hf_sector_cnt; i++) {
69 hf->hf_itf->hff_sector_info(hf, i, &start, &size);
70 if (start < fa->fa_off) {
71 continue;
72 }
73 if (off >= start - fa->fa_off && off <= (start - fa->fa_off) + size) {
74 sector->fs_off = start - fa->fa_off;
75 sector->fs_size = size;
76 rc = 0;
77 break;
78 }
79 }
80
81 flash_area_close(fa);
82 return rc;
83 }
84
