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/*
* fxls8471-i2c.c - Linux kernel modules for 3-Axis Smart Orientation
* /Motion Sensor
* Version : 01.00
* Time : Dec.26, 2012
* Author : rick zhang <rick.zhang@freescale.com>
*
* Copyright (C) 2010-2011 Freescale Semiconductor.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include "fxls8471.h"
static s32 fxls8471_i2c_write(struct fxls8471_data *pdata, u8 reg, u8 val)
{
struct i2c_client *client = (struct i2c_client *)pdata->bus_priv;
return i2c_smbus_write_byte_data(client, reg, val);
}
static int fxls8471_i2c_read(struct fxls8471_data *pdata, u8 reg)
{
struct i2c_client *client = (struct i2c_client *)pdata->bus_priv;
return i2c_smbus_read_byte_data(client, reg);
}
static int fxls8471_i2c_read_block(struct fxls8471_data *pdata, u8 reg, u8 len,
u8 *val)
{
struct i2c_client *client = (struct i2c_client *)pdata->bus_priv;
return i2c_smbus_read_i2c_block_data(client, reg, len, val);
}
static int fxls8471_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
fxls8471_dev.bus_priv = client;
fxls8471_dev.bus_type = BUS_I2C;
fxls8471_dev.irq = client->irq;
fxls8471_dev.read = fxls8471_i2c_read;
fxls8471_dev.write = fxls8471_i2c_write;
fxls8471_dev.read_block = fxls8471_i2c_read_block;
i2c_set_clientdata(client, &fxls8471_dev);
return fxls8471_driver_init(&fxls8471_dev);
}
static int fxls8471_i2c_remove(struct i2c_client *client)
{
return fxls8471_driver_remove(&fxls8471_dev);
}
#ifdef CONFIG_PM
static int fxls8471_i2c_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
return fxls8471_driver_suspend(i2c_get_clientdata(client));
}
static int fxls8471_i2c_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
return fxls8471_driver_resume(i2c_get_clientdata(client));
}
#else /* */
#define fxls8471_i2c_suspend NULL
#define fxls8471_i2c_resume NULL
#endif /* */
static const struct i2c_device_id fxls8471_i2c_id[] = {
{"fxls8471", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, fxls8471_i2c_id);
static SIMPLE_DEV_PM_OPS(fxls8471_pm_ops, fxls8471_i2c_suspend,
fxls8471_i2c_resume);
static struct i2c_driver fxls8471_i2c_driver = {
.driver = {
.name = "fxls8471",
.owner = THIS_MODULE,
.pm = &fxls8471_pm_ops,
},
.probe = fxls8471_i2c_probe,
.remove = fxls8471_i2c_remove,
.id_table = fxls8471_i2c_id,
};
module_i2c_driver(fxls8471_i2c_driver);
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_DESCRIPTION("FXLS8471 3-Axis Acc Sensor driver");
MODULE_LICENSE("GPL");
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