From bc50277cd4bb76ac251dcb8818fce2ceb5fa79cf Mon Sep 17 00:00:00 2001
From: Yongqin Liu <yongqin.liu@linaro.org>
Date: Wed, 19 Dec 2012 11:20:46 +0800
Subject: update-uInitrd.sh: add support for updating files in uInitrd online

add support for updateing file in uInitrd on line
like: update-uInitrd.sh ./init.partitions.rc

Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
---
 update-uInitrd.sh | 190 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 190 insertions(+)
 create mode 100755 update-uInitrd.sh

diff --git a/update-uInitrd.sh b/update-uInitrd.sh
new file mode 100755
index 0000000..9abe236
--- /dev/null
+++ b/update-uInitrd.sh
@@ -0,0 +1,190 @@
+#!/bin/bash
+
+# Author: Linaro Android Team <linaro-dev@lists.linaro.org>
+#
+# These files are Copyright (C) 2012 Linaro Limited and they
+# are licensed under the Apache License, Version 2.0.
+# You may obtain a copy of this license at
+# http://www.apache.org/licenses/LICENSE-2.0
+
+
+function show_usage() {
+    echo "Usage:"
+    echo -e "\t`basename $0` [--serial|-s <serial>] [--partition|-p <boot-partition>] [--target|-t <target-file>] <source-file>"
+    echo -e "\t\tUpdate the target file in uInitrd of the specified device"
+    echo -e "\t\twith the specified source file"
+    echo -e "\t\tWhen the target file is not specified, will update the file in"
+    echo -e "\t\tthe root directory that has the same file name of the source file"
+    echo ""
+    echo -e "\t`basename $0` --help|-h"
+    echo -e "\t\tPrint out this help information"
+}
+
+function parse_argv() {
+    while test -n "$1"; do
+        case "$1" in
+            --help|-h)
+                show_usage
+                exit 0
+                ;;
+            --serial|-s)
+                serial=$2;
+                shift 2
+                ;;
+            --partition|-p)
+                boot_partition=$2;
+                shift 2
+                ;;
+            --target|-t)
+                tgt_file=$2;
+                shift 2
+                ;;
+            *)
+                if [ -n "${src_file}" ]; then
+                    show_usage
+                    echo "Too many arguments, see --help for details"
+                    exit 1
+                else
+                    src_file="$1"
+                    shift
+                fi
+                ;;
+        esac
+    done
+}
+
+function export_serial(){
+    if [ -n "${serial}" ]; then
+        export ANDROID_SERIAL=${serial}
+    else
+        serial=`adb get-serialno|sed 's/\r//g'`
+        if [ "X${serial}" == "Xunknown" ]; then
+            echo "Can not get the serial number autotically,"
+            echo "Please specify the serial number with the -s option"
+            exit 1
+        else
+            export ANDROID_SERIAL=${serial}
+        fi
+    fi
+}
+
+
+function check_parameters(){
+    if [ -z "${src_file}" ]; then
+        echo "Please specify the path of the source file want to use"
+        exit 1
+    fi
+
+    if [ ! -f "${src_file}" ]; then
+        echo "The specified path(${src_file}) is not a file"
+        exit 1
+    fi
+
+#    will use the basename of the src_file
+#    if [ -z "${tgt_file}" ]; then
+#        echo "Please specify the path of the target file want to be updated"
+#        exit 1
+#    fi
+}
+
+function check_device_status(){
+    status=`adb get-state|sed 's/\r//g'`
+    if [ "X${status}" != "Xdevice" ]; then
+        echo "The device is not on line,"
+        echo "Please check the device status"
+        exit 1
+    fi
+}
+
+function get_boot_partition(){
+    product_device=`adb shell getprop ro.product.device|sed 's/\r//g'`
+    case "X${product_device}" in
+        "X" )
+            echo "Failed to get the value of ro.build.product property"
+            exit 1
+            ;;
+        "Xpandaboard" )
+            boot_partition="mmcblk0p1"
+            ;;
+        "Xorigen" )
+            boot_partition="mmcblk0p2"
+            ;;
+        "Xvexpress_a9" )
+            boot_partition="mmcblk0p1"
+            ;;
+        "Xvexpress" )
+            boot_partition="mmcblk0p1"
+            ;;
+        * )
+            echo "The product device(${product_device}) is not supported!"
+            exit 1
+            ;;
+    esac
+}
+
+function recreate_uinitrd(){
+    uinitrd_f="$1"
+    src_f="$2"
+    tgt_f="$3"
+    old_pwd=`pwd`
+
+    src_dir=`dirname $src_f`
+    src_name=`basename $src_f`
+    cd $src_dir
+    src_dir_abs_path=`pwd`
+    src_file_abs="${src_dir_abs_path}/${src_name}"
+    cd ${old_pwd}
+
+    uinitrd_dir=`dirname $uinitrd_f`
+    uinitrd_name=`basename $uinitrd_f`
+    cd ${uinitrd_dir}
+
+    dd if=${uinitrd_name} of=uInitrd.data ibs=64 skip=1
+    mv uInitrd.data ramdisk.cpio.gz
+    gzip -d -f ramdisk.cpio.gz
+    cpio -i -F ramdisk.cpio
+    cp -vf ${src_file_abs} ./${tgt_f}
+    cpio -i -t -F ramdisk.cpio | cpio -o -H newc | gzip > ramdisk_new.cpio.gz
+    mkimage -A arm -O linux -T ramdisk -n "Android Ramdisk Image" -d ramdisk_new.cpio.gz uInitrd
+
+    cd ${old_pwd}
+}
+
+function update_uinitrd(){
+    if [ -z "${boot_partition}" ]; then
+        get_boot_partition
+    fi
+    adb shell mount -t vfat /dev/block/${boot_partition} ${mountpoint}
+
+    org_uinitrd=`mktemp -d /tmp/uinitrd.XXX`
+    echo "Pull the original uInitrd file for backup in ${org_uinitrd}"
+    adb pull ${mountpoint}/uInitrd ${org_uinitrd} &>/dev/null
+    cp -uvf $org_uinitrd/uInitrd{,.org}
+    recreate_uinitrd "${org_uinitrd}/uInitrd" "${src_file}" "${tgt_file}"
+
+    adb push ${org_uinitrd}/uInitrd ${mountpoint}/uInitrd
+    adb push ${org_uinitrd}/uInitrd.org ${mountpoint}/uInitrd.org
+
+    adb shell sync
+    adb shell umount ${mountpoint}
+    rm -fr ${org_uinitrd}
+    echo "uInitrd updated successfully"
+}
+
+function main(){
+    src_file=""
+    tgt_file=""
+    partition=""
+    serial=""
+    mountpoint="/data/local/tmp"
+
+    parse_argv "$@"
+    check_parameters
+    if [ -z "$tgt_file" ]; then
+        tgt_file=`basename ${src_file}`
+    fi
+    export_serial
+    check_device_status
+    update_uinitrd
+}
+main "$@"
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