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9ace3fc8 SS |
1 | /* |
2 | * Copyright (c) 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0+ | |
5 | */ | |
6 | ||
7 | #include <common.h> | |
8 | #include <image.h> | |
9 | #include <android_image.h> | |
10 | ||
11 | static char andr_tmp_str[ANDR_BOOT_ARGS_SIZE + 1]; | |
12 | ||
13 | int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify, | |
14 | ulong *os_data, ulong *os_len) | |
15 | { | |
16 | /* | |
17 | * Not all Android tools use the id field for signing the image with | |
18 | * sha1 (or anything) so we don't check it. It is not obvious that the | |
19 | * string is null terminated so we take care of this. | |
20 | */ | |
21 | strncpy(andr_tmp_str, hdr->name, ANDR_BOOT_NAME_SIZE); | |
22 | andr_tmp_str[ANDR_BOOT_NAME_SIZE] = '\0'; | |
23 | if (strlen(andr_tmp_str)) | |
24 | printf("Android's image name: %s\n", andr_tmp_str); | |
25 | ||
26 | printf("Kernel load addr 0x%08x size %u KiB\n", | |
27 | hdr->kernel_addr, DIV_ROUND_UP(hdr->kernel_size, 1024)); | |
28 | strncpy(andr_tmp_str, hdr->cmdline, ANDR_BOOT_ARGS_SIZE); | |
29 | andr_tmp_str[ANDR_BOOT_ARGS_SIZE] = '\0'; | |
30 | if (strlen(andr_tmp_str)) { | |
31 | printf("Kernel command line: %s\n", andr_tmp_str); | |
32 | setenv("bootargs", andr_tmp_str); | |
33 | } | |
34 | if (hdr->ramdisk_size) | |
35 | printf("RAM disk load addr 0x%08x size %u KiB\n", | |
36 | hdr->ramdisk_addr, | |
37 | DIV_ROUND_UP(hdr->ramdisk_size, 1024)); | |
38 | ||
39 | if (os_data) { | |
40 | *os_data = (ulong)hdr; | |
41 | *os_data += hdr->page_size; | |
42 | } | |
43 | if (os_len) | |
44 | *os_len = hdr->kernel_size; | |
45 | return 0; | |
46 | } | |
47 | ||
48 | int android_image_check_header(const struct andr_img_hdr *hdr) | |
49 | { | |
50 | return memcmp(ANDR_BOOT_MAGIC, hdr->magic, ANDR_BOOT_MAGIC_SIZE); | |
51 | } | |
52 | ||
53 | ulong android_image_get_end(const struct andr_img_hdr *hdr) | |
54 | { | |
55 | u32 size = 0; | |
56 | /* | |
57 | * The header takes a full page, the remaining components are aligned | |
58 | * on page boundary | |
59 | */ | |
60 | size += hdr->page_size; | |
61 | size += ALIGN(hdr->kernel_size, hdr->page_size); | |
62 | size += ALIGN(hdr->ramdisk_size, hdr->page_size); | |
63 | size += ALIGN(hdr->second_size, hdr->page_size); | |
64 | ||
65 | return size; | |
66 | } | |
67 | ||
68 | ulong android_image_get_kload(const struct andr_img_hdr *hdr) | |
69 | { | |
70 | return hdr->kernel_addr; | |
71 | } | |
72 | ||
73 | int android_image_get_ramdisk(const struct andr_img_hdr *hdr, | |
74 | ulong *rd_data, ulong *rd_len) | |
75 | { | |
76 | if (!hdr->ramdisk_size) | |
77 | return -1; | |
78 | *rd_data = (unsigned long)hdr; | |
79 | *rd_data += hdr->page_size; | |
80 | *rd_data += ALIGN(hdr->kernel_size, hdr->page_size); | |
81 | ||
82 | *rd_len = hdr->ramdisk_size; | |
83 | return 0; | |
84 | } |