tools/gpimage-common.c

   1 /*
   2  * (C) Copyright 2014
   3  * Texas Instruments Incorporated
   4  * Refactored common functions in to gpimage-common.c.
   5  *
   6  * (C) Copyright 2010
   7  * Linaro LTD, www.linaro.org
   8  * Author: John Rigby <john.rigby@linaro.org>
   9  * Based on TI's signGP.c
  10  *
  11  * (C) Copyright 2009
  12  * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
  13  *
  14  * (C) Copyright 2008
  15  * Marvell Semiconductor <www.marvell.com>
  16  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
  17  *
  18  * SPDX-License-Identifier:     GPL-2.0+
  19  */
  20
  21 #include "imagetool.h"
  22 #include <compiler.h>
  23 #include <image.h>
  24 #include "gpheader.h"
  25
  26 /* Helper to convert size and load_addr to big endian */
  27 void to_be32(uint32_t *gph_size, uint32_t *gph_load_addr)
  28 {
  29         *gph_size = cpu_to_be32(*gph_size);
  30         *gph_load_addr = cpu_to_be32(*gph_load_addr);
  31 }
  32
  33 int gph_verify_header(struct gp_header *gph, int be)
  34 {
  35         uint32_t gph_size = gph->size;
  36         uint32_t gph_load_addr = gph->load_addr;
  37
  38         if (be)
  39                 to_be32(&gph_size, &gph_load_addr);
  40
  41         if (!gph_size || !gph_load_addr)
  42                 return -1;
  43
  44         return 0;
  45 }
  46
  47 void gph_print_header(const struct gp_header *gph, int be)
  48 {
  49         uint32_t gph_size = gph->size, gph_load_addr = gph->load_addr;
  50
  51         if (be)
  52                 to_be32(&gph_size, &gph_load_addr);
  53
  54         if (!gph_size) {
  55                 fprintf(stderr, "Error: invalid image size %x\n", gph_size);
  56                 exit(EXIT_FAILURE);
  57         }
  58
  59         if (!gph_load_addr) {
  60                 fprintf(stderr, "Error: invalid image load address %x\n",
  61                         gph_load_addr);
  62                 exit(EXIT_FAILURE);
  63         }
  64         printf("GP Header: Size %x LoadAddr %x\n", gph_size, gph_load_addr);
  65 }
  66
  67 void gph_set_header(struct gp_header *gph, uint32_t size, uint32_t load_addr,
  68         int be)
  69 {
  70         gph->size = size;
  71         gph->load_addr = load_addr;
  72         if (be)
  73                 to_be32(&gph->size, &gph->load_addr);
  74 }
  75
  76 int gpimage_check_params(struct image_tool_params *params)
  77 {
  78         return  (params->dflag && (params->fflag || params->lflag)) ||
  79                 (params->fflag && (params->dflag || params->lflag)) ||
  80                 (params->lflag && (params->dflag || params->fflag));
  81 }