linux/drivers/input/touchscreen/eeti_ts.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Touch Screen driver for EETI's I2C connected touch screen panels
 *   Copyright (c) 2009,2018 Daniel Mack <[email protected]>
 *
 * See EETI's software guide for the protocol specification:
 *   http://home.eeti.com.tw/documentation.html
 *
 * Based on migor_ts.c
 *   Copyright (c) 2008 Magnus Damm
 *   Copyright (c) 2007 Ujjwal Pande <[email protected]>
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/input.h>
#include <linux/input/touchscreen.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/timer.h>
#include <linux/gpio/consumer.h>
#include <linux/of.h>
#include <linux/slab.h>
#include <linux/unaligned.h>

struct eeti_ts { … };

#define EETI_TS_BITDEPTH …
#define EETI_MAXVAL …

#define REPORT_BIT_PRESSED …
#define REPORT_BIT_AD0 …
#define REPORT_BIT_AD1 …
#define REPORT_BIT_HAS_PRESSURE …
#define REPORT_RES_BITS(v) …

static void eeti_ts_report_event(struct eeti_ts *eeti, u8 *buf)
{ … }

static int eeti_ts_read(struct eeti_ts *eeti)
{ … }

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

static void eeti_ts_start(struct eeti_ts *eeti)
{ … }

static void eeti_ts_stop(struct eeti_ts *eeti)
{ … }

static int eeti_ts_open(struct input_dev *dev)
{ … }

static void eeti_ts_close(struct input_dev *dev)
{ … }

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

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

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

static DEFINE_SIMPLE_DEV_PM_OPS(eeti_ts_pm, eeti_ts_suspend, eeti_ts_resume);

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

#ifdef CONFIG_OF
static const struct of_device_id of_eeti_ts_match[] = …;
#endif

static struct i2c_driver eeti_ts_driver = …;

module_i2c_driver(…) …;

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