#!/bin/sh
#===============================================================================
#
#  accelerometer
#
#  Copyright (C) 2012-2013 by Digi International Inc.
#  All rights reserved.
#
#  This program is free software; you can redistribute it and/or modify it
#  under the terms of the GNU General Public License version 2 as published by
#  the Free Software Foundation.
#
#  !Description: Load accelerometer calibration
#
#===============================================================================

DEL_PLATFORM="$(cat /sys/kernel/machine/name)"

## Per-platform accelerometer data
# <platform> <driver_name> <i2c_address>
while read _pl _name _i2c; do
	eval "${_pl}_name=\"${_name}\""
	eval "${_pl}_i2c=\"${_i2c}\""
done<<-_EOF_
        ccimx51         mma7455l        1-001d
        ccimx53         mma7455l        2-001d
_EOF_

eval SYSFS_I2C_PATH="/sys/bus/i2c/drivers/\${${DEL_PLATFORM}_name}/\${${DEL_PLATFORM}_i2c}"

SYS_ACCEL_GSELECT="${SYSFS_I2C_PATH}/gSelect"
SYS_ACCEL_CALIBRATION="${SYSFS_I2C_PATH}/calibration"

CALIBRATION_CFG="/etc/accel_calibration"

if [ -f "${SYS_ACCEL_GSELECT}" -a -f "${SYS_ACCEL_CALIBRATION}" -a -f "${CALIBRATION_CFG}" ]; then
	read g x y z < "${CALIBRATION_CFG}"
	echo -n "${g}" > "${SYS_ACCEL_GSELECT}"
	echo -n "${x} ${y} ${z}" > "${SYS_ACCEL_CALIBRATION}"
fi