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/* include/linux/input/kionix_accel.h - Kionix accelerometer driver
*
* Copyright (C) 2012 Kionix, Inc.
* Written by Kuching Tan <kuchingtan@kionix.com>
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __KIONIX_ACCEL_H__
#define __KIONIX_ACCEL_H__
#define KIONIX_ACCEL_I2C_ADDR 0x0E
#define KIONIX_ACCEL_NAME "kionix_accel"
#define KIONIX_ACCEL_IRQ "kionix-irq"
struct kionix_accel_platform_data {
/* Although the accelerometer can perform at high ODR,
* there is a need to keep the maximum ODR to a lower
* value due to power consumption or other concern.
* Use this variable to set the minimum allowable
* interval for data to be reported from the
* accelerometer. Unit is measured in milli-
* seconds. Recommended value is 5ms. */
unsigned int min_interval;
/* Use this variable to set the default interval for
* data to be reported from the accelerometer. This
* value will be used during driver setup process,
* but can be changed by the system during runtime via
* sysfs control. Recommended value is 200ms.*/
unsigned int poll_interval;
/* This variable controls the corresponding direction
* of the accelerometer that is mounted on the board
* of the device. Refer to the porting guide for
* details. Valid value is 1 to 8. */
u8 accel_direction;
/* Use this variable to choose whether or not to use
* DRDY hardware interrupt mode to trigger a data
* report event instead of using software polling.
* Note that for those accelerometer model that does
* not support DRDY hardware interrupt, the driver
* will revert to software polling mode automatically.
* Valid value is 0 or 1.*/
bool accel_irq_use_drdy;
/* Use this variable to control the number of
* effective bits of the accelerometer output.
* Use the macro definition to select the desired
* number of effective bits. */
#define KIONIX_ACCEL_RES_12BIT 0
#define KIONIX_ACCEL_RES_8BIT 1
#define KIONIX_ACCEL_RES_6BIT 2
u8 accel_res;
/* Use this variable to control the G range of
* the accelerometer output. Use the macro definition
* to select the desired G range.*/
#define KIONIX_ACCEL_G_2G 0
#define KIONIX_ACCEL_G_4G 1
#define KIONIX_ACCEL_G_6G 2
#define KIONIX_ACCEL_G_8G 3
u8 accel_g_range;
/* Optional callback functions that can be implemented
* on per product basis. If these callbacks are defined,
* they will be called by the driver. */
int (*init)(void);
void (*exit)(void);
int (*power_on)(void);
int (*power_off)(void);
};
#endif /* __KIONIX_ACCEL_H__ */
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