tools/rksd.c

   1 /*
   2  * (C) Copyright 2015 Google,  Inc
   3  * Written by Simon Glass <sjg@chromium.org>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  *
   7  * See README.rockchip for details of the rksd format
   8  */
   9
  10 #include "imagetool.h"
  11 #include <image.h>
  12 #include <rc4.h>
  13 #include "mkimage.h"
  14 #include "rkcommon.h"
  15
  16 static int rksd_verify_header(unsigned char *buf,  int size,
  17                                  struct image_tool_params *params)
  18 {
  19         return 0;
  20 }
  21
  22 static void rksd_print_header(const void *buf)
  23 {
  24 }
  25
  26 static void rksd_set_header(void *buf,  struct stat *sbuf,  int ifd,
  27                                struct image_tool_params *params)
  28 {
  29         unsigned int size;
  30         int ret;
  31
  32         printf("params->file_size %d\n", params->file_size);
  33         printf("params->orig_file_size %d\n", params->orig_file_size);
  34
  35         /*
  36          * We need to calculate this using 'RK_SPL_HDR_START' and not using
  37          * 'tparams->header_size', as the additional byte inserted when
  38          * 'is_boot0' is true counts towards the payload.
  39          */
  40         size = params->file_size - RK_SPL_HDR_START;
  41         ret = rkcommon_set_header(buf, size, params);
  42         if (ret) {
  43                 /* TODO(sjg@chromium.org): This method should return an error */
  44                 printf("Warning: SPL image is too large (size %#x) and will "
  45                        "not boot\n", size);
  46         }
  47 }
  48
  49 static int rksd_extract_subimage(void *buf,  struct image_tool_params *params)
  50 {
  51         return 0;
  52 }
  53
  54 static int rksd_check_image_type(uint8_t type)
  55 {
  56         if (type == IH_TYPE_RKSD)
  57                 return EXIT_SUCCESS;
  58         else
  59                 return EXIT_FAILURE;
  60 }
  61
  62 static int rksd_vrec_header(struct image_tool_params *params,
  63                             struct image_type_params *tparams)
  64 {
  65         /*
  66          * Pad to the RK_BLK_SIZE (512 bytes) to be consistent with init_size
  67          * being encoded in RK_BLK_SIZE units in header0 (see rkcommon.c).
  68          */
  69         return rkcommon_vrec_header(params, tparams, RK_BLK_SIZE);
  70 }
  71
  72 /*
  73  * rk_sd parameters
  74  */
  75 U_BOOT_IMAGE_TYPE(
  76         rksd,
  77         "Rockchip SD Boot Image support",
  78         0,
  79         NULL,
  80         rkcommon_check_params,
  81         rksd_verify_header,
  82         rksd_print_header,
  83         rksd_set_header,
  84         rksd_extract_subimage,
  85         rksd_check_image_type,
  86         NULL,
  87         rksd_vrec_header
  88 );