linux/drivers/input/serio/ps2mult.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * TQC PS/2 Multiplexer driver
 *
 * Copyright (C) 2010 Dmitry Eremin-Solenikov
 */


#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/serio.h>

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

#define PS2MULT_KB_SELECTOR …
#define PS2MULT_MS_SELECTOR …
#define PS2MULT_ESCAPE …
#define PS2MULT_BSYNC …
#define PS2MULT_SESSION_START …
#define PS2MULT_SESSION_END …

struct ps2mult_port { … };

#define PS2MULT_NUM_PORTS …
#define PS2MULT_KBD_PORT …
#define PS2MULT_MOUSE_PORT …

struct ps2mult { … };

/* First MUST come PS2MULT_NUM_PORTS selectors */
static const unsigned char ps2mult_controls[] = …;

static const struct serio_device_id ps2mult_serio_ids[] = …;

MODULE_DEVICE_TABLE(serio, ps2mult_serio_ids);

static void ps2mult_select_port(struct ps2mult *psm, struct ps2mult_port *port)
{ … }

static int ps2mult_serio_write(struct serio *serio, unsigned char data)
{ … }

static int ps2mult_serio_start(struct serio *serio)
{ … }

static void ps2mult_serio_stop(struct serio *serio)
{ … }

static int ps2mult_create_port(struct ps2mult *psm, int i)
{ … }

static void ps2mult_reset(struct ps2mult *psm)
{ … }

static int ps2mult_connect(struct serio *serio, struct serio_driver *drv)
{ … }

static void ps2mult_disconnect(struct serio *serio)
{ … }

static int ps2mult_reconnect(struct serio *serio)
{ … }

static irqreturn_t ps2mult_interrupt(struct serio *serio,
				     unsigned char data, unsigned int dfl)
{ … }

static struct serio_driver ps2mult_drv = …;

module_serio_driver(…) …;