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#!/bin/bash
if [ $(id -u) -ne 0 ]; then
echo "Installer must be run as root."
echo "Try 'sudo bash $0'"
exit 1
fi
clear
echo "This script enables basic PiTFT display"
echo "support for portable gaming, etc. Does"
echo "not cover X11, touchscreen or buttons"
echo "(see adafruit-pitft-helper for those)."
echo "HDMI output is set to PiTFT resolution,"
echo "not all monitors support this, PiTFT"
echo "may be only display after reboot."
echo "Run time ~5 minutes. Reboot required."
echo
echo -n "CONTINUE? [y/N] "
read
if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
echo "Canceled."
exit 0
fi
# FEATURE PROMPTS ----------------------------------------------------------
# Installation doesn't begin until after all user input is taken.
# Given a list of strings representing options, display each option
# preceded by a number (1 to N), display a prompt, check input until
# a valid number within the selection range is entered.
selectN() {
for ((i=1; i<=$#; i++)); do
echo $i. ${!i}
done
echo
REPLY=""
while :
do
echo -n "SELECT 1-$#: "
read
if [[ $REPLY -ge 1 ]] && [[ $REPLY -le $# ]]; then
return $REPLY
fi
done
}
echo
echo "Select project:"
selectN "PiGRRL 2" \
"Pocket PiGRRL" \
"PiGRRL Zero" \
"Cupcade (horizontal screen)" \
"Cupcade (vertical screen)" \
"Configure options manually"
PROJ_SELECT=$?
PITFT_VALUES=(pitft22 pitft28-resistive pitft28-capacitive pitft35-resistive)
WIDTH_VALUES=(320 320 320 480)
HEIGHT_VALUES=(240 240 240 320)
HZ_VALUES=(80000000 80000000 80000000 32000000)
# Framebuffer (HDMI out) rotation:
FBROTATE_VALUES=(0 1 2 3)
# PiTFT (MADCTL) rotation:
TFTROTATE_VALUES=(0 90 180 270)
if [ $PROJ_SELECT -lt 6 ]; then
# Use preconfigured settings per-project
# 3 elements per project; first is index (1+) into
# PITFT_VALUES, second and third are index into
# FBROTATE_VALUES and TFTROTATE_VALUES:
PROJ_VALUES=(2 1 4 1 1 4 1 1 4 2 1 2 2 2 2)
# FBROTATE index is almost always 1, except for HDMI portrait mode
PITFT_SELECT=${PROJ_VALUES[($PROJ_SELECT-1)*3]}
FBROTATE_SELECT=${PROJ_VALUES[($PROJ_SELECT-1)*3+1]}
TFTROTATE_SELECT=${PROJ_VALUES[($PROJ_SELECT-1)*3+2]}
else
# Configure options manually
echo
echo "Select display type:"
# 123456789012345678901234567890123456789
selectN "PiTFT 2.2\" HAT" \
"PiTFT / PiTFT Plus resistive 2.4-3.2\"" \
"PiTFT / PiTFT Plus 2.8\" capacitive" \
"PiTFT / PiTFT Plus 3.5\""
PITFT_SELECT=$?
echo
echo "HDMI rotation:"
selectN "Normal (landscape)" \
"90° clockwise (portrait)" \
"180° (landscape)" \
"90° counterclockwise (portrait)"
FBROTATE_SELECT=$?
echo
echo "TFT (MADCTL) rotation:"
selectN "0" \
"90" \
"180" \
"270"
TFTROTATE_SELECT=$?
fi
# START INSTALL ------------------------------------------------------------
echo
echo "Device: ${PITFT_VALUES[$PITFT_SELECT-1]}"
echo "HDMI framebuffer rotate: ${FBROTATE_VALUES[$FBROTATE_SELECT-1]}"
echo "TFT MADCTL rotate: ${TFTROTATE_VALUES[$TFTROTATE_SELECT-1]}"
echo
echo -n "CONTINUE? [y/N] "
read
if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
echo "Canceled."
exit 0
fi
# All selections are validated at this point...
# *_SELECT variables will have numeric index of 1+
echo
echo "Starting installation..."
echo "Updating package index files..."
apt-get update
# Given a filename, a regex pattern to match and a replacement string,
# perform replacement if found, else append replacement to end of file.
# (# $1 = filename, $2 = pattern to match, $3 = replacement)
reconfig() {
grep $2 $1 >/dev/null
if [ $? -eq 0 ]; then
# Pattern found; replace in file
sed -i "s/$2/$3/g" $1 >/dev/null
else
# Not found; append (silently)
echo $3 | sudo tee -a $1 >/dev/null
fi
}
# FBCP INSTALL -------------------------------------------------------------
echo "Downloading and installing fbcp..."
apt-get --yes --force-yes install cmake
cd /tmp
curl -LO https://github.com/tasanakorn/rpi-fbcp/archive/master.zip
unzip master.zip
cd rpi-fbcp-master
mkdir build
cd build
cmake ..
make
install fbcp /usr/local/bin/fbcp
cd ../..
rm -rf rpi-fbcp-master
# Add fbcp to /rc.local:
grep fbcp /etc/rc.local >/dev/null
if [ $? -eq 0 ]; then
# fbcp already in rc.local, but make sure correct:
sed -i "s/^.*fbcp.*$/\/usr\/local\/bin\/fbcp \&/g" /etc/rc.local >/dev/null
else
# Insert fbcp into rc.local before final 'exit 0'
sed -i "s/^exit 0/\/usr\/local\/bin\/fbcp \&\\nexit 0/g" /etc/rc.local >/dev/null
fi
# PITFT SETUP (/boot/config.txt mostly) ------------------------------------
echo "Configuring PiTFT..."
# Enable SPI using raspi-config
raspi-config nonint do_spi 0
# Set up PiTFT device tree overlay
reconfig /boot/config.txt "^.*dtoverlay=pitft.*$" "dtoverlay=${PITFT_VALUES[PITFT_SELECT-1]},rotate=${TFTROTATE_VALUES[TFTROTATE_SELECT-1]},speed=${HZ_VALUES[PITFT_SELECT-1]},fps=60"
# Set up framebuffer rotation
reconfig /boot/config.txt "^.*display_rotate.*$" "display_rotate=${FBROTATE_VALUES[FBROTATE_SELECT-1]}"
# Disable overscan compensation (use full screen):
raspi-config nonint do_overscan 1
# Set up HDMI parameters:
reconfig /boot/config.txt "^.*hdmi_force_hotplug.*$" "hdmi_force_hotplug=1"
reconfig /boot/config.txt "^.*hdmi_group.*$" "hdmi_group=2"
reconfig /boot/config.txt "^.*hdmi_mode.*$" "hdmi_mode=87"
reconfig /boot/config.txt "^.*hdmi_cvt.*$" "hdmi_cvt=${WIDTH_VALUES[PITFT_SELECT-1]} ${HEIGHT_VALUES[PITFT_SELECT-1]} 60 1 0 0 0"
# Use smaller console font:
reconfig /etc/default/console-setup "^.*FONTFACE.*$" "FONTFACE=\"Terminus\""
reconfig /etc/default/console-setup "^.*FONTSIZE.*$" "FONTSIZE=\"6x12\""
# Enable Retropie video smoothing
reconfig /opt/retropie/configs/all/retroarch.cfg "^.*video_smooth.*$" "video_smooth = \"true\""
# PROMPT FOR REBOOT --------------------------------------------------------
echo "Done."
echo
echo "Settings take effect on next boot."
echo
echo -n "REBOOT NOW? [y/N] "
read
if [[ ! "$REPLY" =~ ^(yes|y|Y)$ ]]; then
echo "Exiting without reboot."
exit 0
fi
echo "Reboot started..."
reboot
exit 0