linux-imx

/*

 * KXCJK-1013 3-axis accelerometer driver

 * Copyright (c) 2014, Intel Corporation.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms and conditions of the GNU General Public License,

 * version 2, as published by the Free Software Foundation.

 *

 * This program is distributed in the hope 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.

 */

​

#include <linux/module.h>

#include <linux/i2c.h>

#include <linux/interrupt.h>

#include <linux/delay.h>

#include <linux/bitops.h>

#include <linux/slab.h>

#include <linux/string.h>

#include <linux/acpi.h>

#include <linux/pm.h>

#include <linux/pm_runtime.h>

#include <linux/iio/iio.h>

#include <linux/iio/sysfs.h>

#include <linux/iio/buffer.h>

#include <linux/iio/trigger.h>

#include <linux/iio/events.h>

#include <linux/iio/trigger_consumer.h>

#include <linux/iio/triggered_buffer.h>

#include <linux/iio/accel/kxcjk_1013.h>

​

#define KXCJK1013_DRV_NAME "kxcjk1013"

#define KXCJK1013_IRQ_NAME "kxcjk1013_event"

​

#define KXTF9_REG_HP_XOUT_L     0x00

#define KXTF9_REG_HP_XOUT_H     0x01

#define KXTF9_REG_HP_YOUT_L     0x02

#define KXTF9_REG_HP_YOUT_H     0x03

#define KXTF9_REG_HP_ZOUT_L     0x04

#define KXTF9_REG_HP_ZOUT_H     0x05

​

#define KXCJK1013_REG_XOUT_L        0x06

/*

 * From low byte X axis register, all the other addresses of Y and Z can be

 * obtained by just applying axis offset. The following axis defines are just

 * provide clarity, but not used.

 */

#define KXCJK1013_REG_XOUT_H        0x07

#define KXCJK1013_REG_YOUT_L        0x08

#define KXCJK1013_REG_YOUT_H        0x09

#define KXCJK1013_REG_ZOUT_L        0x0A

#define KXCJK1013_REG_ZOUT_H        0x0B

​

#define KXCJK1013_REG_DCST_RESP     0x0C

#define KXCJK1013_REG_WHO_AM_I      0x0F

#define KXTF9_REG_TILT_POS_CUR      0x10

#define KXTF9_REG_TILT_POS_PREV     0x11

#define KXTF9_REG_INT_SRC1      0x15

#define KXCJK1013_REG_INT_SRC1      0x16    /* compatible, but called INT_SRC2 in KXTF9 ds */

#define KXCJK1013_REG_INT_SRC2      0x17

#define KXCJK1013_REG_STATUS_REG    0x18

#define KXCJK1013_REG_INT_REL       0x1A

#define KXCJK1013_REG_CTRL1     0x1B

#define KXTF9_REG_CTRL2         0x1C

#define KXCJK1013_REG_CTRL2     0x1D    /* mostly compatible, CTRL_REG3 in KTXF9 ds */

#define KXCJK1013_REG_INT_CTRL1     0x1E

#define KXCJK1013_REG_INT_CTRL2     0x1F

#define KXTF9_REG_INT_CTRL3     0x20

#define KXCJK1013_REG_DATA_CTRL     0x21

#define KXTF9_REG_TILT_TIMER        0x28

#define KXCJK1013_REG_WAKE_TIMER    0x29

#define KXTF9_REG_TDT_TIMER     0x2B

#define KXTF9_REG_TDT_THRESH_H      0x2C

#define KXTF9_REG_TDT_THRESH_L      0x2D

#define KXTF9_REG_TDT_TAP_TIMER     0x2E

#define KXTF9_REG_TDT_TOTAL_TIMER   0x2F

#define KXTF9_REG_TDT_LATENCY_TIMER 0x30

#define KXTF9_REG_TDT_WINDOW_TIMER  0x31

#define KXCJK1013_REG_SELF_TEST     0x3A

#define KXTF9_REG_WAKE_THRESH       0x5A

#define KXTF9_REG_TILT_ANGLE        0x5C

#define KXTF9_REG_HYST_SET      0x5F

#define KXCJK1013_REG_WAKE_THRES    0x6A

​

#define KXCJK1013_REG_CTRL1_BIT_PC1 BIT(7)

#define KXCJK1013_REG_CTRL1_BIT_RES BIT(6)

#define KXCJK1013_REG_CTRL1_BIT_DRDY    BIT(5)

#define KXCJK1013_REG_CTRL1_BIT_GSEL1   BIT(4)

#define KXCJK1013_REG_CTRL1_BIT_GSEL0   BIT(3)

#define KXCJK1013_REG_CTRL1_BIT_WUFE    BIT(1)