linux/drivers/input/misc/cma3000_d0x.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * VTI CMA3000_D0x Accelerometer driver
 *
 * Copyright (C) 2010 Texas Instruments
 * Author: Hemanth V <[email protected]>
 */

#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/input.h>
#include <linux/input/cma3000.h>
#include <linux/module.h>

#include "cma3000_d0x.h"

#define CMA3000_WHOAMI …
#define CMA3000_REVID …
#define CMA3000_CTRL …
#define CMA3000_STATUS …
#define CMA3000_RSTR …
#define CMA3000_INTSTATUS …
#define CMA3000_DOUTX …
#define CMA3000_DOUTY …
#define CMA3000_DOUTZ …
#define CMA3000_MDTHR …
#define CMA3000_MDFFTMR …
#define CMA3000_FFTHR …

#define CMA3000_RANGE2G …
#define CMA3000_RANGE8G …
#define CMA3000_BUSI2C …
#define CMA3000_MODEMASK …
#define CMA3000_GRANGEMASK …

#define CMA3000_STATUS_PERR …
#define CMA3000_INTSTATUS_FFDET …

/* Settling time delay in ms */
#define CMA3000_SETDELAY …

/* Delay for clearing interrupt in us */
#define CMA3000_INTDELAY …


/*
 * Bit weights in mg for bit 0, other bits need
 * multiply factor 2^n. Eight bit is the sign bit.
 */
#define BIT_TO_2G …
#define BIT_TO_8G …

struct cma3000_accl_data { … };

#define CMA3000_READ(data, reg, msg) …
#define CMA3000_SET(data, reg, val, msg) …

/*
 * Conversion for each of the eight modes to g, depending
 * on G range i.e 2G or 8G. Some modes always operate in
 * 8G.
 */

static int mode_to_mg[8][2] = …;

static void decode_mg(struct cma3000_accl_data *data, int *datax,
				int *datay, int *dataz)
{ … }

static irqreturn_t cma3000_thread_irq(int irq, void *dev_id)
{ … }

static int cma3000_reset(struct cma3000_accl_data *data)
{ … }

static int cma3000_poweron(struct cma3000_accl_data *data)
{ … }

static int cma3000_poweroff(struct cma3000_accl_data *data)
{ … }

static int cma3000_open(struct input_dev *input_dev)
{ … }

static void cma3000_close(struct input_dev *input_dev)
{ … }

void cma3000_suspend(struct cma3000_accl_data *data)
{ … }
EXPORT_SYMBOL(…);


void cma3000_resume(struct cma3000_accl_data *data)
{ … }
EXPORT_SYMBOL(…);

struct cma3000_accl_data *cma3000_init(struct device *dev, int irq,
				       const struct cma3000_bus_ops *bops)
{ … }
EXPORT_SYMBOL(…);

void cma3000_exit(struct cma3000_accl_data *data)
{ … }
EXPORT_SYMBOL(…);

MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_AUTHOR(…) …;