#!/bin/sh
FAMILIAR=familiar-0.3-dw2
KERNELVER=2.4.2-rmk1-np1-20010311
LIBMODULES=libmodules-2.4.2-rmk1-np1-20010312

#Changelog
# 0.3-pre3-dw1
# First familiar-0.3-pre3 build
#
# 0.3-pre3-dw2
# New libmodules tarball, with modules.dep and correct permissions
# sjohnson's xcalibrate with save/restore settings
#
# 0.3-pre3-dw3
# /dev/ppp and modules.conf additions for PPP
# sjohnson's xcalibrate startup script
#
# 0.3-pre3-dw4
# One-liner just to wind curious up and encourage him to use build.sh
#	instead of downloading the prebuilt images
# remove backupToFlash - we really don't want people trying to use it.
#
# 0.3-dw1
# Update to the real familiar-0.3 release
# Add --no-backup-if-mismatch to the patch args
#
# 0.3-dw2
# Add reboot, suspend and IrDA enable/disable to blackbox menu
# Add fixed wvlan_cs module - new libmodules 20010312
# Fix sa1100-rtc name
# Ensure we remove 'build' and 'modules.dep' from the lib/modules dir
#	after installing them.
# insmod ramfs.o and unix.o in /linuxrc
# fix scale script to load module
# Add CPU speed to blackbox menus


echo "Building JFFS2 image for $FAMILIAR"

if [ ! -x $MKJFFS2 ]; then
    echo "mkfs.jffs2 not found at $MKJFFS2. Exiting"
    exit 1
fi

if [ -e $FAMILIAR ]; then
    echo "File or directory \"$FAMILIAR\" already exists. Exiting"
    exit 1
fi

if [ ! -x mkfs.jffs2 ]; then 
    echo "mkfs.jffs2 not found. Downloading from ftp.uk.linux.org"
    wget ftp://ftp.uk.linux.org/pub/people/dwmw2/iPAQ/mkfs.jffs2
    if [ ! -e mkfs.jffs2 ]; then
	echo "Download failed. Exiting"
	exit 1
    fi
    chmod +x mkfs.jffs2
fi

echo "Checking presence of tarballs"
if [ ! -e $LIBMODULES.tar.gz ]; then
    echo "Downloading $LIBMODULES.tar.gz from ftp.uk.linux.org"
    wget ftp://ftp.uk.linux.org/pub/people/dwmw2/iPAQ/bits/$LIBMODULES.tar.gz
    if [ ! -e $LIBMODULES.tar.gz ]; then
	echo "Download failed. Exiting"
	exit 1
    fi
fi

if [ ! -e pppd ]; then
    echo "Downloading pppd binary from ftp.uk.linux.org"
    wget ftp://ftp.uk.linux.org/pub/people/dwmw2/iPAQ/bits/pppd
    if [ ! -e pppd ]; then
	echo "Download failed. Exiting"
	exit 1
    fi
fi

if [ ! -e apm ]; then
    echo "Downloading apm binary from ftp.handhelds.org"
    wget ftp://ftp.handhelds.org/pub/linux/compaq/ipaq/v0.21/apm
    if [ ! -e apm ]; then
	echo "Download failed. Exiting"
	exit 1
    fi
fi

if [ ! -e xcalibrate ]; then
    echo "Downloading xcalibrate binary from ftp.uk.linux.org"
    wget ftp://ftp.uk.linux.org/pub/people/dwmw2/iPAQ/bits/xcalibrate
    if [ ! -e xcalibrate ]; then
	echo "Download failed. Exiting"
	exit 1
    fi
fi

if [ ! -e init-v0.3-src.tar.gz ]; then
    echo "Downloading init-v0.3-src.tar.gz from ftp.handhelds.org"
    wget ftp://ftp.handhelds.org/pub/linux/dists/familiar/v0.3/init-v0.3-src.tar.gz
    if [ ! -e init-v0.3-src.tar.gz ]; then
	echo "Download failed. Exiting"
	exit 1
    fi
fi
if [ ! -e root-v0.3-src.tar.gz ]; then
    echo "Downloading root-v0.3-src.tar.gz from ftp.handhelds.org"
    wget ftp://ftp.handhelds.org/pub/linux/dists/familiar/v0.3/root-v0.3-src.tar.gz
    if [ ! -e root-v0.3-src.tar.gz ]; then
	echo "Download failed. Exiting"
	exit 1
    fi
fi
if [ ! -e usr-v0.3-src.tar.gz ]; then
    echo "Downloading usr-v0.3-src.tar.gz from ftp.handhelds.org"
    wget ftp://ftp.handhelds.org/pub/linux/dists/familiar/v0.3/usr-v0.3-src.tar.gz
    if [ ! -e usr-v0.3-src.tar.gz ]; then
	echo "Download failed. Exiting"
	exit 1
    fi
fi

echo "Verifying tarballs"

if !( md5sum -c <<EOF
f5b19f2594247471defef16ba4a92571  init-v0.3-src.tar.gz
8d335fa077fbc587b8f216ea8b2c2107  root-v0.3-src.tar.gz
363790f18c52cb00962864403b599adf  usr-v0.3-src.tar.gz
dacb4d59c87b045d2484fdcc41cf4dcd  $LIBMODULES.tar.gz
67a6925705228df2185abb11ae26f279  pppd
59436cd631b3e6bb4bfc55019ed3c1b5  apm
5c999e3f83408a5030ff9830c77f043c  xcalibrate
EOF
); then
	exit 1
fi

if [ -e init-v0.3-src ]; then
    echo "Removing old init-v0.3-src"
    if ! rm -rf init-v0.3-src &>/dev/null; then
	echo Removal failed. Exiting.
	exit 1
    fi
fi
if [ -e root-v0.3-src ]; then
    echo "Removing old root-v0.3-src"
    if ! rm -rf root-v0.3-src &>/dev/null; then
	echo Removal failed. Exiting.
	exit 1
    fi
fi
if [ -e usr-v0.3-src ]; then
    echo "Removing old usr-v0.3-src"
    if ! rm -rf usr-v0.3-src &>/dev/null; then
	echo Removal failed. Exiting.
	exit 1
    fi
fi

echo "Extracting init-v0.3-src.tar.gz"
if ! tar xfz init-v0.3-src.tar.gz ; then
    echo Extraction failed. Exiting
    exit 1
fi
echo "Extracting root-v0.3-src.tar.gz"
if ! tar xfz root-v0.3-src.tar.gz ; then
    echo Extraction failed. Exiting
    exit 1
fi
echo "Extracting usr-v0.3-src.tar.gz"
if ! tar xfz usr-v0.3-src.tar.gz ; then
    echo Extraction failed. Exiting
    exit 1
fi

mv root-v0.3-src $FAMILIAR

echo "Moving /usr directory into place"
rmdir $FAMILIAR/usr
mv usr-v0.3-src $FAMILIAR/usr

echo "Copying extra devices into place"
cp -a init-v0.3-src/dev/{mtd?,mtdr?,ircomm0,tty?} $FAMILIAR/dev

echo "Moving /root directory into place"
rm $FAMILIAR/root
mv init-v0.3-src/mnt/ramfs/root $FAMILIAR/root

echo "Moving /home directory into place"
rm $FAMILIAR/home
mv init-v0.3-src/mnt/ramfs/home $FAMILIAR/home

echo "Moving /etc directory into place"
rm $FAMILIAR/etc
mv init-v0.3-src/mnt/ramfs/etc $FAMILIAR/etc

echo "Fixing modules.conf for PPP"
cat >> $FAMILIAR/etc/modules.conf <<EOF
alias char-major-108 ppp_generic
alias tty-ldisc-3 ppp_async
alias tty-ldisc-14 ppp_synctty
alias irda0 sa1100_ir
EOF

echo "Making /dev/ppp node"
mknod $FAMILIAR/dev/ppp c 108 0

echo "Making symlink from /etc/mtab to /proc/mounts"
ln -sf /proc/mounts $FAMILIAR/etc/mtab

echo "Fixing /etc/pcmcia/config for ide-cs"
# perl -pi would be better, but we don't know it's installed 
cat $FAMILIAR/etc/pcmcia/config | sed s/ide_cs/ide-cs/g > tmp-pcmcia-config
mv tmp-pcmcia-config $FAMILIAR/etc/pcmcia/config

echo "Fixing /etc/modules for sa1100-rtc"
cat $FAMILIAR/etc/modules | sed s/sa1100_rtc/sa1100-rtc/ > tmp-etc-modules
mv tmp-etc-modules $FAMILIAR/etc/modules

echo "Making symlink for /etc/network/ifstate into ramfs"
ln -sf ../../mnt/ramfs/etc/network/ifstate $FAMILIAR/etc/network/ifstate 
mkdir -p init-v0.3-src/mnt/ramfs/etc/network
touch init-v0.3-src/mnt/ramfs/etc/network/ifstate

echo "Removing /mnt/ramfs/lib"
rm -rf init-v0.3-src/mnt/ramfs/lib

echo "Removing /mnt/ramfs/var/db"
rm -rf init-v0.3-src/mnt/ramfs/var/db

echo "Making tarball of /mnt/ramfs for extraction at boot"
tar cfz $FAMILIAR/.ramfs.tar.gz -C init-v0.3-src/mnt/ramfs .

echo "Installing new modules"
rm -rf $FAMILIAR/lib/modules
tar xfz $LIBMODULES.tar.gz -C $FAMILIAR
chown root.root -R $FAMILIAR/lib/modules
rm -f $FAMILIAR/lib/modules/modules.dep
rm -f $FAMILIAR/lib/modules/build

echo "Updating pppd"
cp pppd $FAMILIAR/usr/sbin
chown root.root $FAMILIAR/usr/sbin/pppd
chmod 4755 $FAMILIAR/usr/sbin/pppd

echo "Installing apm"
cp apm $FAMILIAR/usr/bin
chown root.root $FAMILIAR/usr/bin/apm
chmod 0755 $FAMILIAR/usr/bin/apm

echo "Installing xcalibrate"
cp xcalibrate $FAMILIAR/usr/X11R6/bin
chown root.root $FAMILIAR/usr/X11R6/bin/xcalibrate
chmod 0755 $FAMILIAR/usr/X11R6/bin/xcalibrate

echo "Patching /etc/init.d/x to restore touch screen settings"
patch -p0 --no-backup-if-mismatch <<EOF 
--- $FAMILIAR/etc/init.d/x.orig	Sun Mar 11 22:48:58 2001
+++ $FAMILIAR/etc/init.d/x	Sun Mar 11 22:50:03 2001
@@ -26,6 +26,11 @@
 
 	(cd familiar ; ./splash )
 
+	if [ -f /etc/xcalibrate.conf ]; then
+		echo "Restoring touch screen calibration"
+		/usr/X11R6/bin/xcalibrate -cal \`cat /etc/xcalibrate.conf\`
+	fi
+
 	blackbox &
 
 	xset s 30 180
EOF

echo "Patching /etc/X11/blackbox/blackbox-menu"
patch -p0 --no-backup-if-mismatch <<EOF
--- $FAMILIAR/etc/X11/blackbox/blackbox-menu.orig	Sun Mar 11 22:51:54 2001
+++ $FAMILIAR/etc/X11/blackbox/blackbox-menu	Sun Mar 11 22:52:51 2001
@@ -20,6 +20,18 @@
 			[exec] (fscrib) {fscrib}
 			[exec] (xvkbd) {xvkbd -ipaq -compact -geom 230x80}
 		[end]
+		[submenu] (IrDA)
+			[exec] (Enable) {ifconfig irda0 up ; echo 1 > /proc/sys/net/irda/discovery}
+			[exec] (Disable) {ifconfig irda0 down ; echo 0 > /proc/sys/net/irda/discovery}
+		[end]
+		[submenu] (Suspend iPAQ)
+			[exec] (Sure?) {/usr/bin/apm -s}
+			[exec] (No) {/bin/false}
+		[end]
+		[submenu] (Reboot iPAQ)
+			[exec] (Sure?) {/sbin/reboot}
+			[exec] (No) {/bin/false}
+		[end]
 		[nop]
 		[exec] (Xrefresh) {xrefresh}
       	[end]
@@ -54,8 +62,27 @@
 		[end]
 		[nop]
 		[exec] (System Settings) {sysset}
-		[exec] (Calibrate Touch Screen) {xcalibrate}
-		[exec] (Backup To Flash) {rxvt -title "Backup to Flash" -e /root/backupToFlash}
+		[submenu] (Touch Screen)
+		      [exec] (Calibrate) {xcalibrate}
+		      [exec] (Save Settings) {xcalibrate -view >/etc/xcalibrate.conf}
+		      [exec] (Restore Settings) {xcalibrate -cal \`cat /etc/xcalibrate.conf\`}
+		      [exec] (Delete Settings) {rm /etc/xcalibrate.conf}
+		[end]
+		[submenu] (CPU Speed)
+			[exec] (59 Mhz) {echo 0 > /proc/scale}
+			[exec] (74 Mhz) {echo 1 > /proc/scale}
+			[exec] (89 Mhz) {echo 2 > /proc/scale}
+			[exec] (103 Mhz) {echo 3 > /proc/scale}
+			[exec] (118 Mhz) {echo 4 > /proc/scale}
+			[exec] (133 Mhz) {echo 5 > /proc/scale}
+			[exec] (148 Mhz) {echo 6 > /proc/scale}
+			[exec] (162 Mhz) {echo 7 > /proc/scale}
+			[exec] (177 Mhz) {echo 8 > /proc/scale}
+			[exec] (192 Mhz) {echo 9 > /proc/scale}
+			[exec] (206 Mhz) {echo 10 > /proc/scale}
+			[exec] (OVERCLOCK to 221 Mhz) {echo 11 > /proc/scale}
+			[exec] (OVERCLOCK to 235 Mhz) {echo 12 > /proc/scale}
+		[end]
 	[end]
 	[workspaces] (Workspaces)
 	[nop]
EOF

echo "Removing backupToFlash"
rm -f $FAMILIAR/root/backupToFlash

echo "Changing fstab"
cat > $FAMILIAR/etc/fstab <<EOF
# <device>    <mountpoint>   <filesystemtype> <options> <dump> <fsckorder>
/dev/mtdblock3 	/               jffs2           defaults 0 0
ramfs		/mnt/ramfs	ramfs		defaults 0 0
proc            /proc           proc            defaults 0 0
devpts		/dev/pts	devpts		mode=0622       0 0
EOF

echo "Patching linuxrc"
patch -p0 --no-backup-if-mismatch <<EOF
--- $FAMILIAR/linuxrc.orig	Sun Mar 11 18:50:14 2001
+++ $FAMILIAR/linuxrc	Sun Mar 11 18:54:25 2001
@@ -3,18 +3,19 @@
 
 export PATH=/bin:/sbin
 
-echo "Setting up RAMFS, please wait... "
-mount -n -t ramfs ramfs /mnt/ramfs
-mount -n -t ramfs ramfs /dev
-
+echo "Loading floating point emulator..."
+/sbin/insmod nwfpe
 
-# Hack to make this all work:
+echo "Mounting /proc"
+mount -n /proc
 
-mknod /dev/mtdblock3 b 31 3
-
-echo "Untarring overlay... "
-cd /
-tar xfpz /dev/mtdblock3 > /dev/null 2>&1
+echo "Loading Unix socket support"
+/sbin/insmod unix
+
+echo "Setting up RAMFS, please wait... "
+/sbin/insmod ramfs
+mount /mnt/ramfs
+tar xfpz .ramfs.tar.gz -C /mnt/ramfs > /dev/null 2>&1
 
 if [ ! -s /etc/inittab ]
 then
@@ -23,17 +24,6 @@
     cd /tmp
     exec /bin/sh
 fi
-
-
-# Now we have to do a little housekeeping
-rm -f /etc/mtab
-
-# re-create the /etc/mtab entries
-echo "Recreating /etc/mtab..."
-mount -f -t cramfs -o ro /dev/mtdblock4 /
-mount -f -t ramfs ramfs /mnt/ramfs
-mount -f -t ramfs ramfs /dev
-mount -f -t proc none /proc

 echo "Setting Date/Time from previous settings"
 /bin/date -s "\`/bin/cat /etc/lastdate\`"
EOF

echo "Fixing /etc/init.d/scale.sh to load cpu-scale module"
patch -p0 --no-backup-if-mismatch <<EOF
--- $FAMILIAR/etc/init.d/scale.sh.orig	Mon Mar 12 13:20:49 2001
+++ $FAMILIAR/etc/init.d/scale.sh	Mon Mar 12 13:21:01 2001
@@ -1,4 +1,5 @@
 #!/bin/sh
 
 echo "Setting CPU Speed"
+insmod cpu-scale
 echo "10" > /proc/scale
EOF

echo "Fixing /etc/init.d/modutils not to recreate modules.dep on _every_ boot"
patch -p0 --no-backup-if-mismatch <<EOF
--- $FAMILIAR/etc/init.d/modutils.orig	Mon Mar 12 12:55:15 2001
+++ $FAMILIAR/etc/init.d/modutils	Mon Mar 12 12:56:06 2001
@@ -10,9 +10,13 @@
 # This is to make depmod and modprobe shut up about file timestamps. -- a7r
 touch /etc/modules.conf
 
-echo -n "Calculating module dependencies... "
-depmod -a > /dev/null
-echo "done."
+if [ -r /lib/modules/`uname -r`/modules.dep ]; then
+	echo "Not recalculating module dependencies"
+else
+	echo -n "Calculating module dependencies... "
+	depmod -a > /dev/null
+	echo "done."
+fi
 
 # Loop over every line in /etc/modules.
 echo -n 'Loading modules: '
EOF

echo "Making JFFS2 image"
./mkfs.jffs2 -o $FAMILIAR.jffs2 -r $FAMILIAR -p -e 0x40000

echo "Making md5sum"
md5sum $FAMILIAR.jffs2 > $FAMILIAR.jffs2.md5sum