bmp085-i2c.c

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/*
 * Copyright (c) 2012  Bosch Sensortec GmbH
 * Copyright (c) 2012  Unixphere AB
 *
 * 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/i2c.h>
#include <linux/err.h>
#include "bmp085.h"

#define BMP085_I2C_ADDRESS  0x77

static const unsigned short normal_i2c[] = { BMP085_I2C_ADDRESS,
                            I2C_CLIENT_END };

static int bmp085_i2c_detect(struct i2c_client *client,
                 struct i2c_board_info *info)
{
    if (client->addr != BMP085_I2C_ADDRESS)
        return -ENODEV;

    return bmp085_detect(&client->dev);
}

static int __devinit bmp085_i2c_probe(struct i2c_client *client,
                      const struct i2c_device_id *id)
{
    int err;
    struct regmap *regmap = devm_regmap_init_i2c(client,
                             &bmp085_regmap_config);

    if (IS_ERR(regmap)) {
        err = PTR_ERR(regmap);
        dev_err(&client->dev, "Failed to init regmap: %d\n", err);
        return err;
    }

    return bmp085_probe(&client->dev, regmap);
}

static int bmp085_i2c_remove(struct i2c_client *client)
{
    return bmp085_remove(&client->dev);
}

static const struct i2c_device_id bmp085_id[] = {
    { BMP085_NAME, 0 },
    { "bmp180", 0 },
    { }
};
MODULE_DEVICE_TABLE(i2c, bmp085_id);

static struct i2c_driver bmp085_i2c_driver = {
    .driver = {
        .owner  = THIS_MODULE,
        .name   = BMP085_NAME,
    },
    .id_table   = bmp085_id,
    .probe      = bmp085_i2c_probe,
    .remove     = __devexit_p(bmp085_i2c_remove),

    .detect     = bmp085_i2c_detect,
    .address_list   = normal_i2c
};

module_i2c_driver(bmp085_i2c_driver);

MODULE_AUTHOR("Eric Andersson <[email protected]>");
MODULE_DESCRIPTION("BMP085 I2C bus driver");
MODULE_LICENSE("GPL");