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/boot/config.txt handling

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This commit is contained in:
Brennen Bearnes 2015-03-06 20:18:20 +00:00
parent 049e52fcbe
commit de9e627ee8
1 changed files with 33 additions and 18 deletions
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51
adafruit-pitft-helper
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@ -3,7 +3,7 @@
set -e
function print_version() {
echo "Adafruit PiTFT Helper v0.0.2"
echo "Adafruit PiTFT Helper v0.1.0"
exit 1
}
@ -11,7 +11,6 @@ function print_help() {
echo "Usage: $0 -t [pitfttype]"
echo " -h Print this help"
echo " -v Print version information"
echo " -r Turn the root filesystem into PiTFT compatible"
echo " -t [type] Specify the type of PiTFT: '28r' (PID 1601) or '28c' (PID 1983) or '35r' or '22'"
echo
echo "You must specify a type of display."
@ -71,31 +70,47 @@ function ask() {
done
}
# update /boot/config.txt with appropriate values
function update_configtxt() {
if grep -q "adafruit-pitft-helper" "/boot/config.txt" ; then
echo "Already have an adafruit-pitft-helper section in /boot/config.txt."
echo "Adding new section, but please run:"
echo "sudo nano /boot/config.txt"
echo "...and remove any duplicate sections."
fi
function update_adafruitconf() {
if [ "${pitfttype}" == "22" ] ; then
cat > /etc/modprobe.d/adafruit.conf <<EOF
options fbtft_device name=adafruit22a gpios=dc:25 rotate=270 frequency=32000000
EOF
# formerly: options fbtft_device name=adafruit22a gpios=dc:25 rotate=270 frequency=32000000
overlay="dtoverlay=pitft22,rotate=270,speed=32000000,fps=20"
fi
if [ "${pitfttype}" == "28r" ] ; then
cat > /etc/modprobe.d/adafruit.conf <<EOF
options fbtft_device name=adafruitrt28 rotate=90 frequency=32000000
EOF
overlay="dtoverlay=pitft28r,rotate=90,speed=32000000,fps=20"
fi
if [ "${pitfttype}" == "28c" ] ; then
cat > /etc/modprobe.d/adafruit.conf <<EOF
options fbtft_device name=adafruitct28 rotate=90 frequency=32000000
EOF
overlay="dtoverlay=pitft28c,rotate=90,speed=32000000,fps=20"
fi
if [ "${pitfttype}" == "35r" ] ; then
cat > /etc/modprobe.d/adafruit.conf <<EOF
options fbtft_device name=adafruitrt35 rotate=90 frequency=32000000
EOF
overlay="dtoverlay=pitft35r,rotate=90,speed=42000000,fps=20"
fi
date=`date`
cat >> /boot/config.txt <<EOF
# --- added by adafruit-pitft-helper $date ---
[pi2]
device_tree=bcm2709-rpi-2-b.dtb
[all]
dtparam=spi=on
dtparam=i2c1=on
dtparam=i2c_arm=on
$overlay
# --- end adafruit-pitft-helper $date ---
EOF
}
# currently for '90' rotation only
@ -247,9 +262,6 @@ then
print_help
fi
info PITFT "Updating /etc/modprobe.d/adafruit.conf..."
update_adafruitconf || bail "Unable to update /etc/modprobe.d/adafruit.conf"
info PITFT "Updating X11 default calibration..."
update_xorg || bail "Unable to update /etc/X11/xorg.conf.d/99-calibration.conf"
@ -275,3 +287,6 @@ if [ "${pitfttype}" != "35r" ]; then
install_onoffbutton || bail "Unable to add on/off button"
fi
fi
info PITFT "Updating /boot/config.txt..."
update_configtxt || bail "Unable to update /boot/config.txt"