Blame view
cmd/abootimg.c
5.8 KB
94f6d0d1b cmd: abootimg: Ad... |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 |
// SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2020 * Sam Protsenko <joe.skb7@gmail.com> */ #include <android_image.h> #include <common.h> #include <mapmem.h> #define abootimg_addr() \ (_abootimg_addr == -1 ? image_load_addr : _abootimg_addr) /* Please use abootimg_addr() macro to obtain the boot image address */ static ulong _abootimg_addr = -1; static int abootimg_get_ver(int argc, char * const argv[]) { const struct andr_img_hdr *hdr; int res = CMD_RET_SUCCESS; if (argc > 1) return CMD_RET_USAGE; hdr = map_sysmem(abootimg_addr(), sizeof(*hdr)); if (android_image_check_header(hdr)) { printf("Error: Boot Image header is incorrect "); res = CMD_RET_FAILURE; goto exit; } if (argc == 0) printf("%u ", hdr->header_version); else env_set_ulong(argv[0], hdr->header_version); exit: unmap_sysmem(hdr); return res; } static int abootimg_get_recovery_dtbo(int argc, char * const argv[]) { ulong addr; u32 size; if (argc > 2) return CMD_RET_USAGE; if (!android_image_get_dtbo(abootimg_addr(), &addr, &size)) return CMD_RET_FAILURE; if (argc == 0) { printf("%lx ", addr); } else { env_set_hex(argv[0], addr); if (argc == 2) env_set_hex(argv[1], size); } return CMD_RET_SUCCESS; } static int abootimg_get_dtb_load_addr(int argc, char * const argv[]) { const struct andr_img_hdr *hdr; int res = CMD_RET_SUCCESS; if (argc > 1) return CMD_RET_USAGE; hdr = map_sysmem(abootimg_addr(), sizeof(*hdr)); if (android_image_check_header(hdr)) { printf("Error: Boot Image header is incorrect "); res = CMD_RET_FAILURE; goto exit; } if (hdr->header_version < 2) { printf("Error: header_version must be >= 2 for this "); res = CMD_RET_FAILURE; goto exit; } if (argc == 0) printf("%lx ", (ulong)hdr->dtb_addr); else env_set_hex(argv[0], (ulong)hdr->dtb_addr); exit: unmap_sysmem(hdr); return res; } static int abootimg_get_dtb_by_index(int argc, char * const argv[]) { const char *index_str; u32 num; char *endp; ulong addr; u32 size; if (argc < 1 || argc > 3) return CMD_RET_USAGE; index_str = argv[0] + strlen("--index="); if (index_str[0] == '\0') { printf("Error: Wrong index num "); return CMD_RET_FAILURE; } num = simple_strtoul(index_str, &endp, 0); if (*endp != '\0') { printf("Error: Wrong index num "); return CMD_RET_FAILURE; } if (!android_image_get_dtb_by_index(abootimg_addr(), num, &addr, &size)) { return CMD_RET_FAILURE; } if (argc == 1) { printf("%lx ", addr); } else { if (env_set_hex(argv[1], addr)) { printf("Error: Can't set [addr_var] "); return CMD_RET_FAILURE; } if (argc == 3) { if (env_set_hex(argv[2], size)) { printf("Error: Can't set [size_var] "); return CMD_RET_FAILURE; } } } return CMD_RET_SUCCESS; } static int abootimg_get_dtb(int argc, char * const argv[]) { if (argc < 1) return CMD_RET_USAGE; if (strstr(argv[0], "--index=")) return abootimg_get_dtb_by_index(argc, argv); return CMD_RET_USAGE; } static int do_abootimg_addr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { char *endp; ulong img_addr; if (argc != 2) return CMD_RET_USAGE; img_addr = simple_strtoul(argv[1], &endp, 16); if (*endp != '\0') { printf("Error: Wrong image address "); return CMD_RET_FAILURE; } _abootimg_addr = img_addr; return CMD_RET_SUCCESS; } static int do_abootimg_get(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { const char *param; if (argc < 2) return CMD_RET_USAGE; param = argv[1]; argc -= 2; argv += 2; if (!strcmp(param, "ver")) return abootimg_get_ver(argc, argv); else if (!strcmp(param, "recovery_dtbo")) return abootimg_get_recovery_dtbo(argc, argv); else if (!strcmp(param, "dtb_load_addr")) return abootimg_get_dtb_load_addr(argc, argv); else if (!strcmp(param, "dtb")) return abootimg_get_dtb(argc, argv); return CMD_RET_USAGE; } static int do_abootimg_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { if (argc != 2) return CMD_RET_USAGE; if (!strcmp(argv[1], "dtb")) { if (android_image_print_dtb_contents(abootimg_addr())) return CMD_RET_FAILURE; } else { return CMD_RET_USAGE; } return CMD_RET_SUCCESS; } static cmd_tbl_t cmd_abootimg_sub[] = { U_BOOT_CMD_MKENT(addr, 2, 1, do_abootimg_addr, "", ""), U_BOOT_CMD_MKENT(dump, 2, 1, do_abootimg_dump, "", ""), U_BOOT_CMD_MKENT(get, 5, 1, do_abootimg_get, "", ""), }; static int do_abootimg(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { cmd_tbl_t *cp; cp = find_cmd_tbl(argv[1], cmd_abootimg_sub, ARRAY_SIZE(cmd_abootimg_sub)); /* Strip off leading 'abootimg' command argument */ argc--; argv++; if (!cp || argc > cp->maxargs) return CMD_RET_USAGE; if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp)) return CMD_RET_SUCCESS; return cp->cmd(cmdtp, flag, argc, argv); } U_BOOT_CMD( abootimg, CONFIG_SYS_MAXARGS, 0, do_abootimg, "manipulate Android Boot Image", "addr <addr> " " - set the address in RAM where boot image is located " " ($loadaddr is used by default) " "abootimg dump dtb " " - print info for all DT blobs in DTB area " "abootimg get ver [varname] " " - get header version " "abootimg get recovery_dtbo [addr_var [size_var]] " " - get address and size (hex) of recovery DTBO area in the image " " [addr_var]: variable name to contain DTBO area address " " [size_var]: variable name to contain DTBO area size " "abootimg get dtb_load_addr [varname] " " - get load address (hex) of DTB, from image header " "abootimg get dtb --index=<num> [addr_var [size_var]] " " - get address and size (hex) of DT blob in the image by index " " <num>: index number of desired DT blob in DTB area " " [addr_var]: variable name to contain DT blob address " " [size_var]: variable name to contain DT blob size" ); |