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#!/bin/sh -e
#
# Copyright 2016 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Build and install raiden module and udev rules
bold=$(tput bold)
normal=$(tput sgr0)
error() {
echo "${bold}Install failed${normal}"
}
trap "error $LINENO" ERR
fallback=false
if [ "$1" = "--fallback" ]; then
fallback=true
shift
fi
if [ $# -ne 0 ]; then
echo ""
echo "Usage: ${bold}$0${normal} [--fallback]"
echo ""
echo "Install Raiden kernel module and udev rules for working with Case"
echo "Closed Debug enabled devices."
echo ""
echo "${bold}--fallback${normal}"
echo " Install udev rules to use usbserial directly without installing"
echo " the raiden module. This can be used when the raiden module fails"
echo " to build, or can not be used for other reasons."
echo ""
echo " The fallback solution will generate extra /dev/ttyUSB? entries"
echo " for the SPI and possibly other CCD bridges. These should be"
echo " ignored by you. Flashrom is smart enough to detach the kernel"
echo " driver from the SPI bridge, so they will not interfere with"
echo " flashing new firmware images over CCD."
echo ""
exit 1
fi
if [ "$fallback" = "false" ]; then
#
# The normal path builds and installs the raiden module
#
{
#
# Don't build the module as root so it's easier to clean up after
#
make modules &&
#
# Install the new module and update dependency and alias information
#
sudo make modules_install &&
sudo depmod -a
} || {
echo $bold
echo "Building and/or installing the raiden module failed, you may"
echo "want to use the --fallback option."
echo $normal
exit 1;
}
else
#
# The fallback path installs the fallback udev rule and its helper script.
#
sudo install -m644 51-google-serial-fallback.rules /etc/udev/rules.d
sudo install add_usb_serial_id /lib/udev
fi
#
# Install the udev rule for creating /dev/google symlinks.
#
sudo install -m644 51-google-serial.rules /etc/udev/rules.d
#
# Trigger udev to create the symlinks for any attached devices that have the
# Google Vendor ID. Limiting triggering like this prevents unwanted resetting
# of some device state, even with the change action specified.
#
for syspath in $(dirname $(grep -rxl --include=idVendor 18d1 /sys/devices)); do
sudo udevadm trigger --action=change --parent-match=${syspath}
done
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