linux/drivers/input/keyboard/qt1070.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  Atmel AT42QT1070 QTouch Sensor Controller
 *
 *  Copyright (C) 2011 Atmel
 *
 *  Authors: Bo Shen <[email protected]>
 *
 *  Base on AT42QT2160 driver by:
 *  Raphael Derosso Pereira <[email protected]>
 *  Copyright (C) 2009
 */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/slab.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/jiffies.h>
#include <linux/delay.h>

/* Address for each register */
#define CHIP_ID …
#define QT1070_CHIP_ID …

#define FW_VERSION …
#define QT1070_FW_VERSION …

#define DET_STATUS …

#define KEY_STATUS …

/* Calibrate */
#define CALIBRATE_CMD …
#define QT1070_CAL_TIME …

/* Reset */
#define RESET …
#define QT1070_RESET_TIME …

/* AT42QT1070 support up to 7 keys */
static const unsigned short qt1070_key2code[] = …;

struct qt1070_data { … };

static int qt1070_read(struct i2c_client *client, u8 reg)
{ … }

static int qt1070_write(struct i2c_client *client, u8 reg, u8 data)
{ … }

static bool qt1070_identify(struct i2c_client *client)
{ … }

static irqreturn_t qt1070_interrupt(int irq, void *dev_id)
{ … }

static int qt1070_probe(struct i2c_client *client)
{ … }

static int qt1070_suspend(struct device *dev)
{ … }

static int qt1070_resume(struct device *dev)
{ … }

static DEFINE_SIMPLE_DEV_PM_OPS(qt1070_pm_ops, qt1070_suspend, qt1070_resume);

static const struct i2c_device_id qt1070_id[] = …;
MODULE_DEVICE_TABLE(i2c, qt1070_id);

#ifdef CONFIG_OF
static const struct of_device_id qt1070_of_match[] = …;
MODULE_DEVICE_TABLE(of, qt1070_of_match);
#endif

static struct i2c_driver qt1070_driver = …;

module_i2c_driver(…) …;

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