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-rw-r--r--tools/mkimage.h101
1 files changed, 100 insertions, 1 deletions
diff --git a/tools/mkimage.h b/tools/mkimage.h
index c077dc9..120970f 100644
--- a/tools/mkimage.h
+++ b/tools/mkimage.h
@@ -19,6 +19,9 @@
* MA 02111-1307 USA
*/
+#ifndef _MKIIMAGE_H_
+#define _MKIIMAGE_H_
+
#include "os_support.h"
#include <errno.h>
#include <fcntl.h>
@@ -31,7 +34,7 @@
#include <sha1.h>
#include "fdt_host.h"
-#define MKIMAGE_DEBUG
+#undef MKIMAGE_DEBUG
#ifdef MKIMAGE_DEBUG
#define debug(fmt,args...) printf (fmt ,##args)
@@ -44,3 +47,99 @@
#define MKIMAGE_DEFAULT_DTC_OPTIONS "-I dts -O dtb -p 500"
#define MKIMAGE_MAX_DTC_CMDLINE_LEN 512
#define MKIMAGE_DTC "dtc" /* assume dtc is in $PATH */
+
+/*
+ * This structure defines all such variables those are initialized by
+ * mkimage main core and need to be referred by image type specific
+ * functions
+ */
+struct mkimage_params {
+ int dflag;
+ int eflag;
+ int fflag;
+ int lflag;
+ int vflag;
+ int xflag;
+ int os;
+ int arch;
+ int type;
+ int comp;
+ char *dtc;
+ unsigned int addr;
+ unsigned int ep;
+ char *imagename;
+ char *datafile;
+ char *imagefile;
+ char *cmdname;
+};
+
+/*
+ * image type specific variables and callback functions
+ */
+struct image_type_params {
+ /* name is an identification tag string for added support */
+ char *name;
+ /*
+ * header size is local to the specific image type to be supported,
+ * mkimage core treats this as number of bytes
+ */
+ uint32_t header_size;
+ /* Image type header pointer */
+ void *hdr;
+ /*
+ * There are several arguments that are passed on the command line
+ * and are registered as flags in mkimage_params structure.
+ * This callback function can be used to check the passed arguments
+ * are in-lined with the image type to be supported
+ *
+ * Returns 1 if parameter check is successful
+ */
+ int (*check_params) (struct mkimage_params *);
+ /*
+ * This function is used by list command (i.e. mkimage -l <filename>)
+ * image type verification code must be put here
+ *
+ * Returns 0 if image header verification is successful
+ * otherwise, returns respective negative error codes
+ */
+ int (*verify_header) (unsigned char *, int, struct mkimage_params *);
+ /* Prints image information abstracting from image header */
+ void (*print_header) (void *);
+ /*
+ * The header or image contents need to be set as per image type to
+ * be generated using this callback function.
+ * further output file post processing (for ex. checksum calculation,
+ * padding bytes etc..) can also be done in this callback function.
+ */
+ void (*set_header) (void *, struct stat *, int,
+ struct mkimage_params *);
+ /*
+ * Some image generation support for ex (default image type) supports
+ * more than one type_ids, this callback function is used to check
+ * whether input (-T <image_type>) is supported by registered image
+ * generation/list low level code
+ */
+ int (*check_image_type) (uint8_t);
+ /* This callback function will be executed if fflag is defined */
+ int (*fflag_handle) (struct mkimage_params *);
+ /* pointer to the next registered entry in linked list */
+ struct image_type_params *next;
+};
+
+/*
+ * Exported functions
+ */
+void mkimage_register (struct image_type_params *tparams);
+
+/*
+ * There is a c file associated with supported image type low level code
+ * for ex. default_image.c, fit_image.c
+ * init is the only function referred by mkimage core.
+ * to avoid a single lined header file, you can define them here
+ *
+ * Supported image types init functions
+ */
+void init_default_image_type (void);
+void init_fit_image_type (void);
+
+#endif /* _MKIIMAGE_H_ */