Eric Lee / smarc-uboot

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tools/fit_info.c 2.41 KB
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83d290c56   Tom Rini   SPDX: Convert all... 
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  // SPDX-License-Identifier: GPL-2.0+
6bf4ca076   Heiko Schocher   tools, fit: add f... 
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  /*
   * (C) Copyright 2014
   * DENX Software Engineering
   * Heiko Schocher <hs@denx.de>
   *
   * fit_info: print the offset and the len of a property from
   *	     node in a fit file.
   *
   * Based on:
   * (C) Copyright 2008 Semihalf
   *
   * (C) Copyright 2000-2004
   * DENX Software Engineering
   * Wolfgang Denk, wd@denx.de
   *
   * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
   *		FIT image specific code abstracted from mkimage.c
   *		some functions added to address abstraction
   *
   * All rights reserved.
6bf4ca076   Heiko Schocher   tools, fit: add f... 
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   */
  
  #include "mkimage.h"
  #include "fit_common.h"
  #include <image.h>
  #include <u-boot/crc.h>
  
  void usage(char *cmdname)
  {
  	fprintf(stderr, "Usage: %s -f fit file -n node -p property
  "
  			 "          -f ==> set fit file which is used'
  "
  			 "          -n ==> set node name'
  "
  			 "          -p ==> set property name'
  ",
  		cmdname);
  	exit(EXIT_FAILURE);
  }
  
  int main(int argc, char **argv)
  {
  	int ffd = -1;
  	struct stat fsbuf;
  	void *fit_blob;
  	int len;
  	int  nodeoffset;	/* node offset from libfdt */
  	const void *nodep;	/* property node pointer */
  	char *fdtfile = NULL;
  	char *nodename = NULL;
  	char *propertyname = NULL;
686dca0fc   Heiko Schocher   tools, fit_info: ... 
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  	char cmdname[256];
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  	int c;
686dca0fc   Heiko Schocher   tools, fit_info: ... 
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  	strncpy(cmdname, *argv, sizeof(cmdname) - 1);
  	cmdname[sizeof(cmdname) - 1] = '\0';
6bf4ca076   Heiko Schocher   tools, fit: add f... 
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  	while ((c = getopt(argc, argv, "f:n:p:")) != -1)
  		switch (c) {
  		case 'f':
  			fdtfile = optarg;
  			break;
  		case 'n':
  			nodename = optarg;
  			break;
  		case 'p':
  			propertyname = optarg;
  			break;
  		default:
  			usage(cmdname);
  			break;
  		}
ba923cab0   Simon Glass   tools: Check argu... 
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  	if (!fdtfile) {
  		fprintf(stderr, "%s: Missing fdt file
  ", *argv);
  		usage(*argv);
  	}
  	if (!nodename) {
  		fprintf(stderr, "%s: Missing node name
  ", *argv);
  		usage(*argv);
  	}
  	if (!propertyname) {
  		fprintf(stderr, "%s: Missing property name
  ", *argv);
  		usage(*argv);
  	}
7d57485a8   Luca Boccassi   tools: use read-o... 
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  	ffd = mmap_fdt(cmdname, fdtfile, 0, &fit_blob, &fsbuf, false, false);
6bf4ca076   Heiko Schocher   tools, fit: add f... 
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  	if (ffd < 0) {
  		printf("Could not open %s
  ", fdtfile);
  		exit(EXIT_FAILURE);
  	}
  
  	nodeoffset = fdt_path_offset(fit_blob, nodename);
  	if (nodeoffset < 0) {
  		printf("%s not found.", nodename);
  		exit(EXIT_FAILURE);
  	}
  	nodep = fdt_getprop(fit_blob, nodeoffset, propertyname, &len);
  	if (len == 0) {
  		printf("len == 0 %s
  ", propertyname);
  		exit(EXIT_FAILURE);
  	}
  
  	printf("NAME: %s
  ", fit_get_name(fit_blob, nodeoffset, NULL));
  	printf("LEN: %d
  ", len);
  	printf("OFF: %d
  ", (int)(nodep - fit_blob));
  	(void) munmap((void *)fit_blob, fsbuf.st_size);
  
  	close(ffd);
  	exit(EXIT_SUCCESS);
  }