diff options
Diffstat (limited to 'src/cbootimage.c')
| -rw-r--r-- | src/cbootimage.c | 103 |
1 files changed, 88 insertions, 15 deletions
diff --git a/src/cbootimage.c b/src/cbootimage.c index 1332c5f..2fdb0f2 100644 --- a/src/cbootimage.c +++ b/src/cbootimage.c @@ -49,6 +49,7 @@ struct option cbootcmd[] = { {"tegra", 1, NULL, 't'}, {"odmdata", 1, NULL, 'o'}, {"soc", 1, NULL, 's'}, + {"update", 0, NULL, 'u'}, {0, 0, 0, 0}, }; @@ -63,7 +64,7 @@ write_image_file(build_image_context *context) static void usage(void) { - printf("Usage: cbootimage [options] configfile imagename\n"); + printf("Usage: cbootimage [options] configfile [inputimage] outputimage\n"); printf(" options:\n"); printf(" -h, --help, -? Display this message.\n"); printf(" -d, --debug Output debugging information.\n"); @@ -75,18 +76,23 @@ usage(void) printf(" -s|--soc tegraNN Select target device. Must be one of:\n"); printf(" tegra20, tegra30, tegra114, tegra124.\n"); printf(" Default: tegra20.\n"); + printf(" -u|--update Copy input image data and update bct\n"); + printf(" configs into new image file.\n"); + printf(" This feature is only for tegra114/124.\n"); printf(" configfile File with configuration information\n"); - printf(" imagename Output image name\n"); + printf(" inputimage Input image name. This is required\n"); + printf(" if -u|--update option is used.\n"); + printf(" outputimage Output image name\n"); } static int process_command_line(int argc, char *argv[], build_image_context *context) { - int c; + int c, num_filenames = 2; context->generate_bct = 0; - while ((c = getopt_long(argc, argv, "hdg:t:o:s:", cbootcmd, NULL)) != -1) { + while ((c = getopt_long(argc, argv, "hdg:t:o:s:u", cbootcmd, NULL)) != -1) { switch (c) { case 'h': help_only = 1; @@ -131,10 +137,14 @@ process_command_line(int argc, char *argv[], build_image_context *context) case 'o': context->odm_data = strtoul(optarg, NULL, 16); break; + case 'u': + context->update_image = 1; + num_filenames = 3; + break; } } - if (argc - optind != 2) { + if (argc - optind != num_filenames) { printf("Missing configuration and/or image file name.\n"); usage(); return -EINVAL; @@ -145,14 +155,26 @@ process_command_line(int argc, char *argv[], build_image_context *context) t20_get_soc_config(context, &g_soc_config); /* Open the configuration file. */ - context->config_file = fopen(argv[optind], "r"); + context->config_file = fopen(argv[optind++], "r"); if (context->config_file == NULL) { printf("Error opening config file.\n"); return -ENODATA; } + /* Record the input image filename if update_image is necessary */ + if (context->update_image) + { + if (context->boot_data_version != BOOTDATA_VERSION_T114 && + context->boot_data_version != BOOTDATA_VERSION_T124) { + printf("Update image feature is only for Tegra114 and Tegra124.\n"); + return -EINVAL; + } + + context->input_image_filename = argv[optind++]; + } + /* Record the output filename */ - context->image_filename = argv[optind + 1]; + context->output_image_filename = argv[optind++]; return 0; } @@ -190,18 +212,69 @@ main(int argc, char *argv[]) } /* Open the raw output file. */ - context.raw_file = fopen(context.image_filename, - "w+"); + context.raw_file = fopen(context.output_image_filename, "w+"); if (context.raw_file == NULL) { printf("Error opening raw file %s.\n", - context.image_filename); + context.output_image_filename); goto fail; } - /* first, if we aren't generating the bct, read in config file */ - if (context.generate_bct == 0) { - process_config_file(&context, 1); + /* Read the bct data from image if bct configs needs to be updated */ + if (context.update_image) { + u_int32_t offset = 0, bct_size, actual_size; + u_int8_t *data_block; + struct stat stats; + + if (stat(context.input_image_filename, &stats) != 0) { + printf("Error: Unable to query info on input file path %s\n", + context.input_image_filename); + goto fail; + } + + /* Get BCT_SIZE from input image file */ + bct_size = get_bct_size_from_image(&context); + if (!bct_size) { + printf("Error: Invalid input image file %s\n", + context.input_image_filename); + goto fail; + } + + while (stats.st_size > offset) { + /* Read a block of data into memory */ + if (read_from_image(context.input_image_filename, offset, bct_size, + &data_block, &actual_size, file_type_bct)) { + printf("Error reading image file %s.\n", context.input_image_filename); + goto fail; + } + + /* Check if memory data is valid BCT */ + context.bct = data_block; + if (data_is_valid_bct(&context)) { + fseek(context.config_file, 0, SEEK_SET); + process_config_file(&context, 0); + e = sign_bct(&context, context.bct); + if (e != 0) { + printf("Signing BCT failed, error: %d.\n", e); + goto fail; + } + } + + /* Write the block of data to file */ + if (actual_size != write_data_block(context.raw_file, offset, actual_size, data_block)) { + printf("Error writing image file %s.\n", context.output_image_filename); + goto fail; + } + + offset += bct_size; + } + + printf("Image file %s has been successfully generated!\n", + context.output_image_filename); + goto fail; } + /* If we aren't generating the bct, read in config file */ + else if (context.generate_bct == 0) + process_config_file(&context, 1); /* Generate the new bct file */ else { /* Initialize the bct memory */ @@ -218,7 +291,7 @@ main(int argc, char *argv[]) fwrite(context.bct, 1, context.bct_size, context.raw_file); printf("New BCT file %s has been successfully generated!\n", - context.image_filename); + context.output_image_filename); goto fail; } @@ -234,7 +307,7 @@ main(int argc, char *argv[]) printf("Error writing image file.\n"); else printf("Image file %s has been successfully generated!\n", - context.image_filename); + context.output_image_filename); fail: /* Close the file(s). */ |