aboot: mdtp: Add support to multiple resolutions
mdtp.img used to hold a single set of images,
designed for a specific screen size.
This change was added to support the new mdtp.img
format, which now includes multiple image sets, for
multiple screen resolutions. The correct image set
to display is determined in runtime, based on the
actual screen resolution.
Change-Id: I6577a412632ad50b08e7de10bf57a5891d736c28
CRs-Fixed: 1008298
diff --git a/app/aboot/mdtp_fs.h b/app/aboot/mdtp_fs.h
index 33ddf55..e131c12 100644
--- a/app/aboot/mdtp_fs.h
+++ b/app/aboot/mdtp_fs.h
@@ -29,19 +29,26 @@
#ifndef MDTP_FS_H
#define MDTP_FS_H
-#define MAX_IMAGES (40)
-#define MDTP_HEADER_LEN (4096)
-#define META_DATA_PARTITION_LEN (2048)
-#define MAX_PARAMS (512)
+#define MAX_IMAGES (40)
+#define MDTP_HEADER_LEN (4096)
+#define META_DATA_PARTITION_LEN (2048)
+#define MAX_PARAMS (512)
+#define MDTP_PARAM_UNSET_VALUE (111)
+#define SUPPORTED_METADATA_VERSION (1)
+
/*
-MDTP header layout:
+MDTP image layout:
+-The mdtp image file contains two layers that both include mdtp_img headers:
+ 1. The first header includes the image sets metadata.
+ 2. Once we decided which image set we would like to display, we read the metadata
+ of that specific image set (contains metadata of the actual images).
-The mdtp_img header is a fixed length of 4096 Bytes.
--The mdtp_img header is devided into 2 partitions:
+-The mdtp_img header is divided into 2 partitions:
1.MDTP parameters (eFuse, digit-space, etc..)
- 2.Images meta-data (offset, width, height)
+ 2.Images/image sets meta-data (offset, width, height)
-Each partition size is 2048 Bytes.
--Each parameter is 4 Bytes long, 512 params MAX.
--Each meta-data part (offset/width/height) is 4 Bytes long.
+-Each parameter is 4 Bytes long, 512 params max.
+-Each meta-data parameter (offset/width/height) is 4 Bytes long.
*/
@@ -76,7 +83,9 @@
PIN_UNSELECTED_6 = 24, PIN_UNSELECTED_7 = 25,
PIN_UNSELECTED_8 = 26, PIN_UNSELECTED_9 = 27} mdtp_image_id_t;
-typedef enum {VIRTUAL_FUSE = 0, DIGIT_SPACE = 1} mdtp_parameter_id_t ;
+typedef enum {VIRTUAL_FUSE = 0, DIGIT_SPACE = 1, VERSION = 2, TYPE = 3, IMAGE_SETS_NUM = 4} mdtp_parameter_id_t;
+
+typedef enum {IMAGES = 1, IMAGE_SETS = 2} mdtp_metadata_type_t;
/*---------------------------------------------------------
* External Functions