Commit c17ca3f5 authored by Eric Andersson's avatar Eric Andersson Committed by Dmitry Torokhov
Browse files

Input: add driver for Bosch Sensortec's BMA150 accelerometer 



Signed-off-by: default avatarAlbert Zhang <xu.zhang@bosch-sensortec.com>
Signed-off-by: default avatarEric Andersson <eric.andersson@unixphere.com>
Acked-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Reviewed-by: default avatarAlan Cox <alan@linux.intel.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 5e3e4eb1

drivers/input/misc/Kconfig

+11 −0
Original line number Diff line number Diff line
@@ -62,6 +62,17 @@ config INPUT_AD714X_SPI 
	  To compile this driver as a module, choose M here: the

	  module will be called ad714x-spi.



config INPUT_BMA150

	tristate "BMA150/SMB380 acceleration sensor support"

	depends on I2C

	select INPUT_POLLDEV

	help

	  Say Y here if you have Bosch Sensortec's BMA150 or SMB380

	  acceleration sensor hooked to an I2C bus.



	  To compile this driver as a module, choose M here: the

	  module will be called bma150.



config INPUT_PCSPKR

	tristate "PC Speaker support"

	depends on PCSPKR_PLATFORM

drivers/input/misc/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o 
obj-$(CONFIG_INPUT_ATI_REMOTE2)		+= ati_remote2.o

obj-$(CONFIG_INPUT_ATLAS_BTNS)		+= atlas_btns.o

obj-$(CONFIG_INPUT_BFIN_ROTARY)		+= bfin_rotary.o

obj-$(CONFIG_INPUT_BMA150)		+= bma150.o

obj-$(CONFIG_INPUT_CM109)		+= cm109.o

obj-$(CONFIG_INPUT_CMA3000)		+= cma3000_d0x.o

obj-$(CONFIG_INPUT_CMA3000_I2C)		+= cma3000_d0x_i2c.o

drivers/input/misc/bma150.c

0 → 100644
+691 −0
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2011 Bosch Sensortec GmbH

 * Copyright (c) 2011 Unixphere

 *

 * This driver adds support for Bosch Sensortec's digital acceleration

 * sensors BMA150 and SMB380.

 * The SMB380 is fully compatible with BMA150 and only differs in packaging.

 *

 * The datasheet for the BMA150 chip can be found here:

 * http://www.bosch-sensortec.com/content/language1/downloads/BST-BMA150-DS000-07.pdf

 *

 * 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/kernel.h>

#include <linux/module.h>

#include <linux/i2c.h>

#include <linux/input.h>

#include <linux/input-polldev.h>

#include <linux/interrupt.h>

#include <linux/delay.h>

#include <linux/slab.h>

#include <linux/pm.h>

#include <linux/pm_runtime.h>

#include <linux/bma150.h>



#define ABSMAX_ACC_VAL		0x01FF

#define ABSMIN_ACC_VAL		-(ABSMAX_ACC_VAL)



/* Each axis is represented by a 2-byte data word */

#define BMA150_XYZ_DATA_SIZE	6



/* Input poll interval in milliseconds */

#define BMA150_POLL_INTERVAL	10

#define BMA150_POLL_MAX		200

#define BMA150_POLL_MIN		0



#define BMA150_BW_25HZ		0

#define BMA150_BW_50HZ		1

#define BMA150_BW_100HZ		2

#define BMA150_BW_190HZ		3

#define BMA150_BW_375HZ		4

#define BMA150_BW_750HZ		5

#define BMA150_BW_1500HZ	6



#define BMA150_RANGE_2G		0

#define BMA150_RANGE_4G		1

#define BMA150_RANGE_8G		2



#define BMA150_MODE_NORMAL	0

#define BMA150_MODE_SLEEP	2

#define BMA150_MODE_WAKE_UP	3



/* Data register addresses */

#define BMA150_DATA_0_REG	0x00

#define BMA150_DATA_1_REG	0x01

#define BMA150_DATA_2_REG	0x02



/* Control register addresses */

#define BMA150_CTRL_0_REG	0x0A

#define BMA150_CTRL_1_REG	0x0B

#define BMA150_CTRL_2_REG	0x14

#define BMA150_CTRL_3_REG	0x15



/* Configuration/Setting register addresses */

#define BMA150_CFG_0_REG	0x0C

#define BMA150_CFG_1_REG	0x0D

#define BMA150_CFG_2_REG	0x0E

#define BMA150_CFG_3_REG	0x0F

#define BMA150_CFG_4_REG	0x10

#define BMA150_CFG_5_REG	0x11



#define BMA150_CHIP_ID		2

#define BMA150_CHIP_ID_REG	BMA150_DATA_0_REG



#define BMA150_ACC_X_LSB_REG	BMA150_DATA_2_REG



#define BMA150_SLEEP_POS	0

#define BMA150_SLEEP_MSK	0x01

#define BMA150_SLEEP_REG	BMA150_CTRL_0_REG



#define BMA150_BANDWIDTH_POS	0

#define BMA150_BANDWIDTH_MSK	0x07

#define BMA150_BANDWIDTH_REG	BMA150_CTRL_2_REG



#define BMA150_RANGE_POS	3

#define BMA150_RANGE_MSK	0x18

#define BMA150_RANGE_REG	BMA150_CTRL_2_REG



#define BMA150_WAKE_UP_POS	0

#define BMA150_WAKE_UP_MSK	0x01

#define BMA150_WAKE_UP_REG	BMA150_CTRL_3_REG



#define BMA150_SW_RES_POS	1

#define BMA150_SW_RES_MSK	0x02

#define BMA150_SW_RES_REG	BMA150_CTRL_0_REG



/* Any-motion interrupt register fields */

#define BMA150_ANY_MOTION_EN_POS	6

#define BMA150_ANY_MOTION_EN_MSK	0x40

#define BMA150_ANY_MOTION_EN_REG	BMA150_CTRL_1_REG



#define BMA150_ANY_MOTION_DUR_POS	6

#define BMA150_ANY_MOTION_DUR_MSK	0xC0

#define BMA150_ANY_MOTION_DUR_REG	BMA150_CFG_5_REG



#define BMA150_ANY_MOTION_THRES_REG	BMA150_CFG_4_REG



/* Advanced interrupt register fields */

#define BMA150_ADV_INT_EN_POS		6

#define BMA150_ADV_INT_EN_MSK		0x40

#define BMA150_ADV_INT_EN_REG		BMA150_CTRL_3_REG



/* High-G interrupt register fields */

#define BMA150_HIGH_G_EN_POS		1

#define BMA150_HIGH_G_EN_MSK		0x02

#define BMA150_HIGH_G_EN_REG		BMA150_CTRL_1_REG



#define BMA150_HIGH_G_HYST_POS		3

#define BMA150_HIGH_G_HYST_MSK		0x38

#define BMA150_HIGH_G_HYST_REG		BMA150_CFG_5_REG



#define BMA150_HIGH_G_DUR_REG		BMA150_CFG_3_REG

#define BMA150_HIGH_G_THRES_REG		BMA150_CFG_2_REG



/* Low-G interrupt register fields */

#define BMA150_LOW_G_EN_POS		0

#define BMA150_LOW_G_EN_MSK		0x01

#define BMA150_LOW_G_EN_REG		BMA150_CTRL_1_REG



#define BMA150_LOW_G_HYST_POS		0

#define BMA150_LOW_G_HYST_MSK		0x07

#define BMA150_LOW_G_HYST_REG		BMA150_CFG_5_REG



#define BMA150_LOW_G_DUR_REG		BMA150_CFG_1_REG

#define BMA150_LOW_G_THRES_REG		BMA150_CFG_0_REG



struct bma150_data {

	struct i2c_client *client;

	struct input_polled_dev *input_polled;

	struct input_dev *input;

	u8 mode;

};



/*

 * The settings for the given range, bandwidth and interrupt features

 * are stated and verified by Bosch Sensortec where they are configured

 * to provide a generic sensitivity performance.

 */

static struct bma150_cfg default_cfg __devinitdata = {

	.any_motion_int = 1,

	.hg_int = 1,

	.lg_int = 1,

	.any_motion_dur = 0,

	.any_motion_thres = 0,

	.hg_hyst = 0,

	.hg_dur = 150,

	.hg_thres = 160,

	.lg_hyst = 0,

	.lg_dur = 150,

	.lg_thres = 20,

	.range = BMA150_RANGE_2G,

	.bandwidth = BMA150_BW_50HZ

};



static int bma150_write_byte(struct i2c_client *client, u8 reg, u8 val)

{

	s32 ret;



	/* As per specification, disable irq in between register writes */

	if (client->irq)

		disable_irq_nosync(client->irq);



	ret = i2c_smbus_write_byte_data(client, reg, val);



	if (client->irq)

		enable_irq(client->irq);



	return ret;

}



static int bma150_set_reg_bits(struct i2c_client *client,

					int val, int shift, u8 mask, u8 reg)

{

	int data;



	data = i2c_smbus_read_byte_data(client, reg);

	if (data < 0)

		return data;



	data = (data & ~mask) | ((val << shift) & mask);

	return bma150_write_byte(client, reg, data);

}



static int bma150_set_mode(struct bma150_data *bma150, u8 mode)

{

	int error;



	error = bma150_set_reg_bits(bma150->client, mode, BMA150_WAKE_UP_POS,

				BMA150_WAKE_UP_MSK, BMA150_WAKE_UP_REG);

	if (error)

		return error;



	error = bma150_set_reg_bits(bma150->client, mode, BMA150_SLEEP_POS,

				BMA150_SLEEP_MSK, BMA150_SLEEP_REG);

	if (error)

		return error;



	if (mode == BMA150_MODE_NORMAL)

		msleep(2);



	bma150->mode = mode;

	return 0;

}



static int __devinit bma150_soft_reset(struct bma150_data *bma150)

{

	int error;



	error = bma150_set_reg_bits(bma150->client, 1, BMA150_SW_RES_POS,

				BMA150_SW_RES_MSK, BMA150_SW_RES_REG);

	if (error)

		return error;



	msleep(2);

	return 0;

}



static int __devinit bma150_set_range(struct bma150_data *bma150, u8 range)

{

	return bma150_set_reg_bits(bma150->client, range, BMA150_RANGE_POS,

				BMA150_RANGE_MSK, BMA150_RANGE_REG);

}



static int __devinit bma150_set_bandwidth(struct bma150_data *bma150, u8 bw)

{

	return bma150_set_reg_bits(bma150->client, bw, BMA150_BANDWIDTH_POS,

				BMA150_BANDWIDTH_MSK, BMA150_BANDWIDTH_REG);

}



static int __devinit bma150_set_low_g_interrupt(struct bma150_data *bma150,

					u8 enable, u8 hyst, u8 dur, u8 thres)

{

	int error;



	error = bma150_set_reg_bits(bma150->client, hyst,

				BMA150_LOW_G_HYST_POS, BMA150_LOW_G_HYST_MSK,

				BMA150_LOW_G_HYST_REG);

	if (error)

		return error;



	error = bma150_write_byte(bma150->client, BMA150_LOW_G_DUR_REG, dur);

	if (error)

		return error;



	error = bma150_write_byte(bma150->client, BMA150_LOW_G_THRES_REG, thres);

	if (error)

		return error;



	return bma150_set_reg_bits(bma150->client, !!enable,

				BMA150_LOW_G_EN_POS, BMA150_LOW_G_EN_MSK,

				BMA150_LOW_G_EN_REG);

}



static int __devinit bma150_set_high_g_interrupt(struct bma150_data *bma150,

					u8 enable, u8 hyst, u8 dur, u8 thres)

{

	int error;



	error = bma150_set_reg_bits(bma150->client, hyst,

				BMA150_HIGH_G_HYST_POS, BMA150_HIGH_G_HYST_MSK,

				BMA150_HIGH_G_HYST_REG);

	if (error)

		return error;



	error = bma150_write_byte(bma150->client,

				BMA150_HIGH_G_DUR_REG, dur);

	if (error)

		return error;



	error = bma150_write_byte(bma150->client,

				BMA150_HIGH_G_THRES_REG, thres);

	if (error)

		return error;



	return bma150_set_reg_bits(bma150->client, !!enable,

				BMA150_HIGH_G_EN_POS, BMA150_HIGH_G_EN_MSK,

				BMA150_HIGH_G_EN_REG);

}





static int __devinit bma150_set_any_motion_interrupt(struct bma150_data *bma150,

						u8 enable, u8 dur, u8 thres)

{

	int error;



	error = bma150_set_reg_bits(bma150->client, dur,

				BMA150_ANY_MOTION_DUR_POS,

				BMA150_ANY_MOTION_DUR_MSK,

				BMA150_ANY_MOTION_DUR_REG);

	if (error)

		return error;



	error = bma150_write_byte(bma150->client,

				BMA150_ANY_MOTION_THRES_REG, thres);

	if (error)

		return error;



	error = bma150_set_reg_bits(bma150->client, !!enable,

				BMA150_ADV_INT_EN_POS, BMA150_ADV_INT_EN_MSK,

				BMA150_ADV_INT_EN_REG);

	if (error)

		return error;



	return bma150_set_reg_bits(bma150->client, !!enable,

				BMA150_ANY_MOTION_EN_POS,

				BMA150_ANY_MOTION_EN_MSK,

				BMA150_ANY_MOTION_EN_REG);

}



static void bma150_report_xyz(struct bma150_data *bma150)

{

	u8 data[BMA150_XYZ_DATA_SIZE];

	s16 x, y, z;

	s32 ret;



	ret = i2c_smbus_read_i2c_block_data(bma150->client,

			BMA150_ACC_X_LSB_REG, BMA150_XYZ_DATA_SIZE, data);

	if (ret != BMA150_XYZ_DATA_SIZE)

		return;



	x = ((0xc0 & data[0]) >> 6) | (data[1] << 2);

	y = ((0xc0 & data[2]) >> 6) | (data[3] << 2);

	z = ((0xc0 & data[4]) >> 6) | (data[5] << 2);



	/* sign extension */

	x = (s16) (x << 6) >> 6;

	y = (s16) (y << 6) >> 6;

	z = (s16) (z << 6) >> 6;



	input_report_abs(bma150->input, ABS_X, x);

	input_report_abs(bma150->input, ABS_Y, y);

	input_report_abs(bma150->input, ABS_Z, z);

	input_sync(bma150->input);

}



static irqreturn_t bma150_irq_thread(int irq, void *dev)

{

	bma150_report_xyz(dev);



	return IRQ_HANDLED;

}



static void bma150_poll(struct input_polled_dev *dev)

{

	bma150_report_xyz(dev->private);

}



static int bma150_open(struct bma150_data *bma150)

{

	int error;



	error = pm_runtime_get_sync(&bma150->client->dev);

	if (error && error != -ENOSYS)

		return error;



	/*

	 * See if runtime PM woke up the device. If runtime PM

	 * is disabled we need to do it ourselves.

	 */

	if (bma150->mode != BMA150_MODE_NORMAL) {

		error = bma150_set_mode(bma150, BMA150_MODE_NORMAL);

		if (error)

			return error;

	}



	return 0;

}



static void bma150_close(struct bma150_data *bma150)

{

	pm_runtime_put_sync(&bma150->client->dev);



	if (bma150->mode != BMA150_MODE_SLEEP)

		bma150_set_mode(bma150, BMA150_MODE_SLEEP);

}



static int bma150_irq_open(struct input_dev *input)

{

	struct bma150_data *bma150 = input_get_drvdata(input);



	return bma150_open(bma150);

}



static void bma150_irq_close(struct input_dev *input)

{

	struct bma150_data *bma150 = input_get_drvdata(input);



	bma150_close(bma150);

}



static void bma150_poll_open(struct input_polled_dev *ipoll_dev)

{

	struct bma150_data *bma150 = ipoll_dev->private;



	bma150_open(bma150);

}



static void bma150_poll_close(struct input_polled_dev *ipoll_dev)

{

	struct bma150_data *bma150 = ipoll_dev->private;



	bma150_close(bma150);

}



static int __devinit bma150_initialize(struct bma150_data *bma150,

				       const struct bma150_cfg *cfg)

{

	int error;



	error = bma150_soft_reset(bma150);

	if (error)

		return error;



	error = bma150_set_bandwidth(bma150, cfg->bandwidth);

	if (error)

		return error;



	error = bma150_set_range(bma150, cfg->range);

	if (error)

		return error;



	if (bma150->client->irq) {

		error = bma150_set_any_motion_interrupt(bma150,

					cfg->any_motion_int,

					cfg->any_motion_dur,

					cfg->any_motion_thres);

		if (error)

			return error;



		error = bma150_set_high_g_interrupt(bma150,

					cfg->hg_int, cfg->hg_hyst,

					cfg->hg_dur, cfg->hg_thres);

		if (error)

			return error;



		error = bma150_set_low_g_interrupt(bma150,

					cfg->lg_int, cfg->lg_hyst,

					cfg->lg_dur, cfg->lg_thres);

		if (error)

			return error;

	}



	return bma150_set_mode(bma150, BMA150_MODE_SLEEP);

}



static void __devinit bma150_init_input_device(struct bma150_data *bma150,

						struct input_dev *idev)

{

	idev->name = BMA150_DRIVER;

	idev->phys = BMA150_DRIVER "/input0";

	idev->id.bustype = BUS_I2C;

	idev->dev.parent = &bma150->client->dev;



	idev->evbit[0] = BIT_MASK(EV_ABS);

	input_set_abs_params(idev, ABS_X, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);

	input_set_abs_params(idev, ABS_Y, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);

	input_set_abs_params(idev, ABS_Z, ABSMIN_ACC_VAL, ABSMAX_ACC_VAL, 0, 0);

}



static int __devinit bma150_register_input_device(struct bma150_data *bma150)

{

	struct input_dev *idev;

	int error;



	idev = input_allocate_device();

	if (!idev)

		return -ENOMEM;



	bma150_init_input_device(bma150, idev);



	idev->open = bma150_irq_open;

	idev->close = bma150_irq_close;

	input_set_drvdata(idev, bma150);



	error = input_register_device(idev);

	if (error) {

		input_free_device(idev);

		return error;

	}



	bma150->input = idev;

	return 0;

}



static int __devinit bma150_register_polled_device(struct bma150_data *bma150)

{

	struct input_polled_dev *ipoll_dev;

	int error;



	ipoll_dev = input_allocate_polled_device();

	if (!ipoll_dev)

		return -ENOMEM;



	ipoll_dev->private = bma150;

	ipoll_dev->open = bma150_poll_open;

	ipoll_dev->close = bma150_poll_close;

	ipoll_dev->poll = bma150_poll;

	ipoll_dev->poll_interval = BMA150_POLL_INTERVAL;

	ipoll_dev->poll_interval_min = BMA150_POLL_MIN;

	ipoll_dev->poll_interval_max = BMA150_POLL_MAX;



	bma150_init_input_device(bma150, ipoll_dev->input);



	error = input_register_polled_device(ipoll_dev);

	if (error) {

		input_free_polled_device(ipoll_dev);

		return error;

	}



	bma150->input_polled = ipoll_dev;

	bma150->input = ipoll_dev->input;



	return 0;

}



static int __devinit bma150_probe(struct i2c_client *client,

				  const struct i2c_device_id *id)

{

	const struct bma150_platform_data *pdata = client->dev.platform_data;

	const struct bma150_cfg *cfg;

	struct bma150_data *bma150;

	int chip_id;

	int error;



	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {

		dev_err(&client->dev, "i2c_check_functionality error\n");

		return -EIO;

	}



	chip_id = i2c_smbus_read_byte_data(client, BMA150_CHIP_ID_REG);

	if (chip_id != BMA150_CHIP_ID) {

		dev_err(&client->dev, "BMA150 chip id error: %d\n", chip_id);

		return -EINVAL;

	}



	bma150 = kzalloc(sizeof(struct bma150_data), GFP_KERNEL);

	if (!bma150)

		return -ENOMEM;



	bma150->client = client;



	if (pdata) {

		if (pdata->irq_gpio_cfg) {

			error = pdata->irq_gpio_cfg();

			if (error) {

				dev_err(&client->dev,

					"IRQ GPIO conf. error %d, error %d\n",

					client->irq, error);

				goto err_free_mem;

			}

		}

		cfg = &pdata->cfg;

	} else {

		cfg = &default_cfg;

	}



	error = bma150_initialize(bma150, cfg);

	if (error)

		goto err_free_mem;



	if (client->irq > 0) {

		error = bma150_register_input_device(bma150);

		if (error)

			goto err_free_mem;



		error = request_threaded_irq(client->irq,

					NULL, bma150_irq_thread,

					IRQF_TRIGGER_RISING | IRQF_ONESHOT,

					BMA150_DRIVER, bma150);

		if (error) {

			dev_err(&client->dev,

				"irq request failed %d, error %d\n",

				client->irq, error);

			input_unregister_device(bma150->input);

			goto err_free_mem;

		}

	} else {

		error = bma150_register_polled_device(bma150);

		if (error)

			goto err_free_mem;

	}



	i2c_set_clientdata(client, bma150);



	pm_runtime_enable(&client->dev);



	return 0;



err_free_mem:

	kfree(bma150);

	return error;

}



static int __devexit bma150_remove(struct i2c_client *client)

{

	struct bma150_data *bma150 = i2c_get_clientdata(client);



	pm_runtime_disable(&client->dev);



	if (client->irq > 0) {

		free_irq(client->irq, bma150);

		input_unregister_device(bma150->input);

	} else {

		input_unregister_polled_device(bma150->input_polled);

		input_free_polled_device(bma150->input_polled);

	}



	kfree(bma150);



	return 0;

}



#ifdef CONFIG_PM

static int bma150_suspend(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct bma150_data *bma150 = i2c_get_clientdata(client);



	return bma150_set_mode(bma150, BMA150_MODE_SLEEP);

}



static int bma150_resume(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct bma150_data *bma150 = i2c_get_clientdata(client);



	return bma150_set_mode(bma150, BMA150_MODE_NORMAL);

}

#endif



static UNIVERSAL_DEV_PM_OPS(bma150_pm, bma150_suspend, bma150_resume, NULL);



static const struct i2c_device_id bma150_id[] = {

	{ "bma150", 0 },

	{ "smb380", 0 },

	{ "bma023", 0 },

	{ }

};



MODULE_DEVICE_TABLE(i2c, bma150_id);



static struct i2c_driver bma150_driver = {

	.driver = {

		.owner	= THIS_MODULE,

		.name	= BMA150_DRIVER,

		.pm	= &bma150_pm,

	},

	.class		= I2C_CLASS_HWMON,

	.id_table	= bma150_id,

	.probe		= bma150_probe,

	.remove		= __devexit_p(bma150_remove),

};



static int __init BMA150_init(void)

{

	return i2c_add_driver(&bma150_driver);

}



static void __exit BMA150_exit(void)

{

	i2c_del_driver(&bma150_driver);

}



MODULE_AUTHOR("Albert Zhang <xu.zhang@bosch-sensortec.com>");

MODULE_DESCRIPTION("BMA150 driver");

MODULE_LICENSE("GPL");



module_init(BMA150_init);

module_exit(BMA150_exit);

include/linux/bma150.h

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Original line number Diff line number Diff line 
/*

 * Copyright (c) 2011 Bosch Sensortec GmbH

 * Copyright (c) 2011 Unixphere

 *

 * 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.

 */



#ifndef _BMA150_H_

#define _BMA150_H_



#define BMA150_DRIVER		"bma150"



struct bma150_cfg {

	bool any_motion_int;		/* Set to enable any-motion interrupt */

	bool hg_int;			/* Set to enable high-G interrupt */

	bool lg_int;			/* Set to enable low-G interrupt */

	unsigned char any_motion_dur;	/* Any-motion duration */

	unsigned char any_motion_thres;	/* Any-motion threshold */

	unsigned char hg_hyst;		/* High-G hysterisis */

	unsigned char hg_dur;		/* High-G duration */

	unsigned char hg_thres;		/* High-G threshold */

	unsigned char lg_hyst;		/* Low-G hysterisis */

	unsigned char lg_dur;		/* Low-G duration */

	unsigned char lg_thres;		/* Low-G threshold */

	unsigned char range;		/* BMA0150_RANGE_xxx (in G) */

	unsigned char bandwidth;	/* BMA0150_BW_xxx (in Hz) */

};



struct bma150_platform_data {

	struct bma150_cfg cfg;

	int (*irq_gpio_cfg)(void);

};



#endif /* _BMA150_H_ */