From e0e6bb182df551fe6c2e342fe6d071ec69b0b9fb Mon Sep 17 00:00:00 2001
From: "przemyslaw.radziszewski" <przemyslaw.radziszewski@home.net.pl>
Date: Wed, 14 Mar 2018 20:59:34 +0100
Subject: [PATCH] added frame buffer configuration

---
 packages/bsp/h3disp | 43 ++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 5 deletions(-)
 mode change 100644 => 100755 packages/bsp/h3disp

diff --git a/packages/bsp/h3disp b/packages/bsp/h3disp
old mode 100644
new mode 100755
index b4c89646c..6bef89713
--- a/packages/bsp/h3disp
+++ b/packages/bsp/h3disp
@@ -25,6 +25,8 @@
 #
 # CHANGES:
 #
+# v0.6: Added frame buffer config (fb[0-1]_format, fb[0-1]_width, fb[0-1]_height)
+#
 # v0.5: Added bare modes display (-i)
 #
 # v0.4: Added new modes in a combination with kernel patch, but they refuse to work.
@@ -102,6 +104,15 @@ Main() {
 				exit 1
 			fi
 		fi
+
+		if [ -v FrameBuffer ]; then
+			re='^(0|4|5|6|7|8|9|10|12):[0-9]{1,4}:[0-9]{1,4}$'
+			if ! [[ ${FrameBuffer} =~ ${re} ]] ; then
+				echo "$0: Invalid frame buffer config data. use -h option to help."
+				exit 1
+				fi
+		fi
+
 		case ${VideoMode} in
 			0|480i) # res
 				HDMIMode=0
@@ -224,7 +235,7 @@ Main() {
 				pll_video=688
 				;;
 			*)
-				if [ "X${VideoMode}" = "X" ]; then
+				if [ ${VideoMode} ]; then
 					echo -e "$0: missing video mode. Try one of the following:\n"
 				else
 					echo -e "$0: illegal video mode \"-m ${VideoMode}\". Try one of the following:\n"
@@ -251,7 +262,7 @@ Main() {
 } # Main
 
 ParseOptions() {
-	while getopts 'hHvVdDm:M:c:C:i' c ; do
+	while getopts 'hHvVdDm:M:c:C:i:f:F' c ; do
 	case ${c} in
 		H)
 			export FullUsage=TRUE
@@ -288,6 +299,10 @@ ParseOptions() {
 			# The colour-range in question
 			export ColourRange=${OPTARG}
 			;;
+		f|F)
+			# Set frame buffer config
+			export FrameBuffer=${OPTARG}
+			;;
 	esac
 	done
 } # ParseOptions
@@ -303,11 +318,11 @@ DisplayUsage() {
 			LGREEN='\033[1;32m'
 		fi
 	fi
-	echo -e "Usage: ${BOLD}${0##*/} [-h/-H] -m [video mode] [-d] [-c [0-2]]${NC}\n"
+	echo -e "Usage: ${BOLD}${0##*/} [-h/-H] -m [video mode] [-d] [-c [0-2]] [-f [fb_mode:fb_width:fb_height]]${NC}\n"
 	echo -e "############################################################################"
 	if [ ${FullUsage} ]; then
-	echo -e "\nDetailed Description:"
-	grep "^#" "$0" | grep -v "^#\!/bin/bash" | sed 's/^#//'
+		echo -e "\nDetailed Description:"
+		grep "^#" "$0" | grep -v "^#\!/bin/bash" | sed 's/^#//'
 	fi
 	echo -e "\n This is a tool to set the display resolution of your Orange"
 	echo -e " Pi by patching script.bin.\n\n In case you use an HDMI-to-DVI converter\c"
@@ -319,6 +334,14 @@ DisplayUsage() {
 	echo -e "    ${BOLD}0${NC} -- RGB range 16-255 (Default, use \"${LGREEN}-c 0${NC}\")"
 	echo -e "    ${BOLD}1${NC} -- RGB range 0-255 (Full range, use \"${LGREEN}-c 1${NC}\")"
 	echo -e "    ${BOLD}2${NC} -- RGB range 16-235 (Limited video, \"${LGREEN}-c 2${NC}\")\n"
+	echo -e "To change frame buffer config use ${LGREEN}-f${NC} option and data in format ${BOLD}fb_mode:fb_width:fb_height${NC} where:"
+	echo -e "    ${BOLD}fb_mode${NC} :"
+	echo -e "     ${LGREEN}0${NC} -- DEFAULT,  ${LGREEN}4${NC} -- RGB655, ${LGREEN}5${NC} -- RGB565,    ${LGREEN}6${NC} -- RGB556, ${LGREEN}7${NC} -- ARGB1555"
+	echo -e "     ${LGREEN}8${NC} -- RGBA5551, ${LGREEN}9${NC} -- RGB888, ${LGREEN}10${NC} -- ARGB8888, ${LGREEN}12${NC} -- ARGB4444"
+	echo -e "    ${BOLD}fb_width${NC}:"
+	echo -e "     width resolution in pixel -- range 0-9999"
+	echo -e "    ${BOLD}fb_height${NC}:"
+	echo -e "     height resolution in pixel -- range 0-9999"
 	echo -e "############################################################################\n"
 } # DisplayUsage
 
@@ -418,6 +441,16 @@ PatchScriptBin() {
 		FexChange "${MyTmpFile}" "disp_init" "screen0_out_color_range" "${ColourRange}"
 	fi
 
+	if [ -v FrameBuffer ]; then
+		FrameBuffer_config=($(echo "${FrameBuffer}" | tr ':' '\n'))
+		FexChange "${MyTmpFile}" "disp_init" "fb0_format" "${FrameBuffer_config[0]}"
+		FexChange "${MyTmpFile}" "disp_init" "fb0_width" "${FrameBuffer_config[1]}"
+		FexChange "${MyTmpFile}" "disp_init" "fb0_height" "${FrameBuffer_config[2]}"
+		FexChange "${MyTmpFile}" "disp_init" "fb1_format" "${FrameBuffer_config[0]}"
+		FexChange "${MyTmpFile}" "disp_init" "fb1_width" "${FrameBuffer_config[1]}"
+		FexChange "${MyTmpFile}" "disp_init" "fb1_height" "${FrameBuffer_config[2]}"
+	fi
+
 	if [ "X$2" = "XTRUE" ]; then
 		# add entries necessary for HDMI-to-DVI adapters
 		FexChange "${MyTmpFile}" "hdmi_para" "hdcp_enable" "0"