tools: moved code common to all image tools to a separated module.

In order to avoid duplicating code and keep only one point of modification,
the functions, structs and defines useful for "dumpimage" were moved from
"mkimage" to a common module called "imagetool".

This modification also weakens the coupling between image types (FIT, IMX, MXS,
and so on) and image tools (mkimage and dumpimage). Any tool may initialize the
"imagetool" through register_image_tool() function, while the image types
register themselves within an image tool using the register_image_type()
function:

                                                      +---------------+
                                               +------|   fit_image   |
 +--------------+          +-----------+       |      +---------------+
 |    mkimage   |--------> |           | <-----+
 +--------------+          |           |              +---------------+
                           | imagetool | <------------|    imximage   |
 +--------------+          |           |              +---------------+
 |  dumpimage   |--------> |           | <-----+
 +--------------+          +-----------+       |      +---------------+
                                               +------| default_image |
                                                      +---------------+

          register_image_tool()           register_image_type()

Also, the struct "mkimage_params" was renamed to "image_tool_params" to make
clear its general purpose.

Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/tools/ublimage.c b/tools/ublimage.c
index aafe248..cbbbe20 100644
--- a/tools/ublimage.c
+++ b/tools/ublimage.c
@@ -13,7 +13,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include "mkimage.h"
+#include "imagetool.h"
 #include <image.h>
 #include "ublimage.h"
 
@@ -193,7 +193,7 @@ static int ublimage_check_image_types(uint8_t type)
 }
 
 static int ublimage_verify_header(unsigned char *ptr, int image_size,
-			struct mkimage_params *params)
+			struct image_tool_params *params)
 {
 	struct ubl_header *ubl_hdr = (struct ubl_header *)ptr;
 
@@ -211,7 +211,7 @@ static void ublimage_print_header(const void *ptr)
 }
 
 static void ublimage_set_header(void *ptr, struct stat *sbuf, int ifd,
-				struct mkimage_params *params)
+				struct image_tool_params *params)
 {
 	struct ubl_header *ublhdr = (struct ubl_header *)ptr;
 
@@ -219,7 +219,7 @@ static void ublimage_set_header(void *ptr, struct stat *sbuf, int ifd,
 	parse_cfg_file(ublhdr, params->imagename);
 }
 
-int ublimage_check_params(struct mkimage_params *params)
+int ublimage_check_params(struct image_tool_params *params)
 {
 	if (!params)
 		return CFG_INVALID;
@@ -257,5 +257,5 @@ static struct image_type_params ublimage_params = {
 
 void init_ubl_image_type(void)
 {
-	mkimage_register(&ublimage_params);
+	register_image_type(&ublimage_params);
 }