payloads/tianocore: Add option for custom bootsplash

Add Kconfig options to use custom bootsplash file,
dependent on using MrChromebox's stable branch, with
help info conveying required file format.

Adjust Makefile to copy the custom bootsplash and
overwrite the default Logo.bmp file, handling both
absolute and relative paths, and restore the original
logo file after building so as to keep the working
directory clean.

Test: build with and without custom bootsplash, ensure
correct bootsplash displayed

Change-Id: I164f46777169801cff56633fd920bc81b7c8129a
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31561
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>

payloads/external/Makefile.inc

@@ -135,6 +135,7 @@ payloads/external/tianocore/tianocore/Build/UEFIPAYLOAD.fd tianocore: $(DOTCONFI
 		CONFIG_TIANOCORE_DEBUG=$(CONFIG_TIANOCORE_DEBUG) \
 		CONFIG_TIANOCORE_TARGET_IA32=$(CONFIG_TIANOCORE_TARGET_IA32) \
 		CONFIG_TIANOCORE_USE_8254_TIMER=$(CONFIG_TIANOCORE_USE_8254_TIMER) \
+		CONFIG_TIANOCORE_BOOTSPLASH_FILE=$(CONFIG_TIANOCORE_BOOTSPLASH_FILE) \
 		GCC_CC_x86_32=$(GCC_CC_x86_32) \
 		GCC_CC_x86_64=$(GCC_CC_x86_64) \
 		GCC_CC_arm=$(GCC_CC_arm) \

payloads/external/tianocore/Kconfig

@@ -87,4 +87,24 @@ config TIANOCORE_USE_8254_TIMER
 	help
 	  Use 8254 Timer for legacy support.
 
+config TIANOCORE_BOOTSPLASH_IMAGE
+	bool "Use a custom bootsplash image"
+	depends on TIANOCORE_STABLE
+	help
+	  Select this option if you have a bootsplash image that you would
+	  like to be used. If this option is not selected, the default
+	  coreboot logo (European Brown Hare) will used.
+
+config TIANOCORE_BOOTSPLASH_FILE
+	string "Tianocore Bootsplash path and filename"
+	depends on TIANOCORE_BOOTSPLASH_IMAGE
+	default "bootsplash.bmp"
+	help
+	  The path and filename of the file to use as graphical bootsplash
+	  screen. The file format must be uncompressed BMP, and the file's
+	  resolution must be less than the native resolution of the display.
+
+	  If an absolute path is not given, the path will assumed to be
+	  relative to the coreboot root directory.
+
 endif

payloads/external/tianocore/Makefile

@@ -81,6 +81,15 @@ checktools:
 build: update checktools
 	unset CC; $(MAKE) -C $(project_dir)/BaseTools
 	echo " build $(project_name) $(TAG-y)"
+	if [ -n $(CONFIG_TIANOCORE_BOOTSPLASH_FILE) ]; then \
+		echo "    Copying custom bootsplash image"; \
+		case "$(CONFIG_TIANOCORE_BOOTSPLASH_FILE)" in \
+			/*) cp $(CONFIG_TIANOCORE_BOOTSPLASH_FILE) \
+				$(project_dir)/CorebootPayloadPkg/Logo/Logo.bmp;; \
+			*) cp $(top)/$(CONFIG_TIANOCORE_BOOTSPLASH_FILE) \
+				$(project_dir)/CorebootPayloadPkg/Logo/Logo.bmp;; \
+		esac \
+	fi; \
 	cd $(project_dir); \
 		export EDK_TOOLS_PATH=$(project_dir)/BaseTools; \
 		export WORKSPACE=$(project_dir); \
@@ -90,7 +99,8 @@ build: update checktools
 			cat ../tools_def.txt >> $(project_dir)/Conf/tools_def.txt; \
 		fi; \
 		build $(BUILD_STR); \
-		mv $(project_dir)/Build/CorebootPayloadPkg*/*/FV/UEFIPAYLOAD.fd $(project_dir)/Build/UEFIPAYLOAD.fd
+		mv $(project_dir)/Build/CorebootPayloadPkg*/*/FV/UEFIPAYLOAD.fd $(project_dir)/Build/UEFIPAYLOAD.fd; \
+		git checkout CorebootPayloadPkg/Logo/Logo.bmp > /dev/null 2>&1
 
 clean:
 	test -d $(project_dir) && (cd $(project_dir); rm -rf Build; rm -f Conf/tools_def.txt) || exit 0