tools/mkimage.h

   1 /*
   2  * (C) Copyright 2000-2004
   3  * DENX Software Engineering
   4  * Wolfgang Denk, wd@denx.de
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #ifndef _MKIIMAGE_H_
  10 #define _MKIIMAGE_H_
  11
  12 #include "os_support.h"
  13 #include <errno.h>
  14 #include <fcntl.h>
  15 #include <stdio.h>
  16 #include <stdlib.h>
  17 #include <string.h>
  18 #include <sys/stat.h>
  19 #include <time.h>
  20 #include <unistd.h>
  21 #include <sha1.h>
  22 #include "fdt_host.h"
  23
  24 #undef MKIMAGE_DEBUG
  25
  26 #ifdef MKIMAGE_DEBUG
  27 #define debug(fmt,args...)      printf (fmt ,##args)
  28 #else
  29 #define debug(fmt,args...)
  30 #endif /* MKIMAGE_DEBUG */
  31
  32 #define ARRAY_SIZE(x)           (sizeof(x) / sizeof((x)[0]))
  33
  34 static inline void *map_sysmem(ulong paddr, unsigned long len)
  35 {
  36         return (void *)(uintptr_t)paddr;
  37 }
  38
  39 static inline ulong map_to_sysmem(void *ptr)
  40 {
  41         return (ulong)(uintptr_t)ptr;
  42 }
  43
  44 #define MKIMAGE_TMPFILE_SUFFIX          ".tmp"
  45 #define MKIMAGE_MAX_TMPFILE_LEN         256
  46 #define MKIMAGE_DEFAULT_DTC_OPTIONS     "-I dts -O dtb -p 500"
  47 #define MKIMAGE_MAX_DTC_CMDLINE_LEN     512
  48 #define MKIMAGE_DTC                     "dtc"   /* assume dtc is in $PATH */
  49
  50 #define IH_ARCH_DEFAULT         IH_ARCH_INVALID
  51
  52 /*
  53  * This structure defines all such variables those are initialized by
  54  * mkimage main core and need to be referred by image type specific
  55  * functions
  56  */
  57 struct mkimage_params {
  58         int dflag;
  59         int eflag;
  60         int fflag;
  61         int lflag;
  62         int vflag;
  63         int xflag;
  64         int skipcpy;
  65         int os;
  66         int arch;
  67         int type;
  68         int comp;
  69         char *dtc;
  70         unsigned int addr;
  71         unsigned int ep;
  72         char *imagename;
  73         char *imagename2;
  74         char *datafile;
  75         char *imagefile;
  76         char *cmdname;
  77         const char *keydir;     /* Directory holding private keys */
  78         const char *keydest;    /* Destination .dtb for public key */
  79         const char *comment;    /* Comment to add to signature node */
  80         int require_keys;       /* 1 to mark signing keys as 'required' */
  81 };
  82
  83 /*
  84  * image type specific variables and callback functions
  85  */
  86 struct image_type_params {
  87         /* name is an identification tag string for added support */
  88         char *name;
  89         /*
  90          * header size is local to the specific image type to be supported,
  91          * mkimage core treats this as number of bytes
  92          */
  93         uint32_t header_size;
  94         /* Image type header pointer */
  95         void *hdr;
  96         /*
  97          * There are several arguments that are passed on the command line
  98          * and are registered as flags in mkimage_params structure.
  99          * This callback function can be used to check the passed arguments
 100          * are in-lined with the image type to be supported
 101          *
 102          * Returns 1 if parameter check is successful
 103          */
 104         int (*check_params) (struct mkimage_params *);
 105         /*
 106          * This function is used by list command (i.e. mkimage -l <filename>)
 107          * image type verification code must be put here
 108          *
 109          * Returns 0 if image header verification is successful
 110          * otherwise, returns respective negative error codes
 111          */
 112         int (*verify_header) (unsigned char *, int, struct mkimage_params *);
 113         /* Prints image information abstracting from image header */
 114         void (*print_header) (const void *);
 115         /*
 116          * The header or image contents need to be set as per image type to
 117          * be generated using this callback function.
 118          * further output file post processing (for ex. checksum calculation,
 119          * padding bytes etc..) can also be done in this callback function.
 120          */
 121         void (*set_header) (void *, struct stat *, int,
 122                                         struct mkimage_params *);
 123         /*
 124          * Some image generation support for ex (default image type) supports
 125          * more than one type_ids, this callback function is used to check
 126          * whether input (-T <image_type>) is supported by registered image
 127          * generation/list low level code
 128          */
 129         int (*check_image_type) (uint8_t);
 130         /* This callback function will be executed if fflag is defined */
 131         int (*fflag_handle) (struct mkimage_params *);
 132         /*
 133          * This callback function will be executed for variable size record
 134          * It is expected to build this header in memory and return its length
 135          * and a pointer to it
 136          */
 137         int (*vrec_header) (struct mkimage_params *,
 138                 struct image_type_params *);
 139         /* pointer to the next registered entry in linked list */
 140         struct image_type_params *next;
 141 };
 142
 143 /*
 144  * Exported functions
 145  */
 146 void mkimage_register (struct image_type_params *tparams);
 147
 148 /*
 149  * There is a c file associated with supported image type low level code
 150  * for ex. default_image.c, fit_image.c
 151  * init is the only function referred by mkimage core.
 152  * to avoid a single lined header file, you can define them here
 153  *
 154  * Supported image types init functions
 155  */
 156 void pbl_load_uboot(int fd, struct mkimage_params *mparams);
 157 void init_pbl_image_type(void);
 158 void init_ais_image_type(void);
 159 void init_kwb_image_type (void);
 160 void init_imx_image_type (void);
 161 void init_default_image_type (void);
 162 void init_fit_image_type (void);
 163 void init_ubl_image_type(void);
 164 void init_omap_image_type(void);
 165
 166 #endif /* _MKIIMAGE_H_ */