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#!/bin/sh /etc/rc.common
# Copyright (C) 2008 OpenWrt.org
START=90
CONFIGFS_DIR="/config/gpiommc"
# add_device(name, DI_pin, DO_pin, CLK_pin, CS_pin, mode)
add_device() {
local dir="$CONFIGFS_DIR/$1"
mkdir $dir
[ $? -eq 0 ] || return 1
echo $2 > $dir/gpio_data_in
[ $? -eq 0 ] || return 1
echo $3 > $dir/gpio_data_out
[ $? -eq 0 ] || return 1
echo $4 > $dir/gpio_clock
[ $? -eq 0 ] || return 1
echo $5 > $dir/gpio_chipselect
[ $? -eq 0 ] || return 1
echo $6 > $dir/spi_mode
[ $? -eq 0 ] || return 1
# XXX We have more config options available. Use defaults for now.
echo 1 > $dir/register
[ $? -eq 0 ] || return 1
return 0
}
# remove_device(name)
remove_device() {
local dir="$CONFIGFS_DIR/$1"
rmdir $dir
}
mount_configfs() {
# FIXME: This should probably be done somewhere else.
mount | grep configfs
if [ $? -eq 0 ]; then
# already mounted
return 0
fi
mkdir -p /config
[ $? -eq 0 ] || return 1
mount configfs -t configfs /config
[ $? -eq 0 ] || return 1
return 0
}
start() {
# Make sure configfs is mounted
mount_configfs
[ $? -eq 0 ] || return 1
#FIXME we should use a config file, but I dunno how that parser works.
add_device "default" 5 4 3 7 0
}
stop() {
remove_device "default"
}
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