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/default_image.c b/tools/default_image.c
index fd8b9f5..cc790b2 100644
--- a/tools/default_image.c
+++ b/tools/default_image.c
@@ -14,7 +14,7 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include "mkimage.h"
+#include "imagetool.h"
 #include <image.h>
 #include <u-boot/crc.h>
 
@@ -29,7 +29,7 @@ static int image_check_image_types(uint8_t type)
 		return EXIT_FAILURE;
 }
 
-static int image_check_params(struct mkimage_params *params)
+static int image_check_params(struct image_tool_params *params)
 {
 	return	((params->dflag && (params->fflag || params->lflag)) ||
 		(params->fflag && (params->dflag || params->lflag)) ||
@@ -37,7 +37,7 @@ static int image_check_params(struct mkimage_params *params)
 }
 
 static int image_verify_header(unsigned char *ptr, int image_size,
-			struct mkimage_params *params)
+			struct image_tool_params *params)
 {
 	uint32_t len;
 	const unsigned char *data;
@@ -86,7 +86,7 @@ static int image_verify_header(unsigned char *ptr, int image_size,
 }
 
 static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
-				struct mkimage_params *params)
+				struct image_tool_params *params)
 {
 	uint32_t checksum;
 
@@ -133,5 +133,5 @@ static struct image_type_params defimage_params = {
 
 void init_default_image_type(void)
 {
-	mkimage_register(&defimage_params);
+	register_image_type(&defimage_params);
 }