linux-hardened/drivers/input/mouse/focaltech.c

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/*
* Focaltech TouchPad PS/2 mouse driver
*
* Copyright (c) 2014 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Red Hat authors:
*
* Hans de Goede <hdegoede@redhat.com>
*/
/*
* The Focaltech PS/2 touchpad protocol is unknown. This drivers deals with
* detection only, to avoid further detection attempts confusing the touchpad
* this way it at least works in PS/2 mouse compatibility mode.
*/
#include <linux/device.h>
#include <linux/libps2.h>
#include "psmouse.h"
static const char * const focaltech_pnp_ids[] = {
"FLT0101",
"FLT0102",
"FLT0103",
NULL
};
int focaltech_detect(struct psmouse *psmouse, bool set_properties)
{
if (!psmouse_matches_pnp_id(psmouse, focaltech_pnp_ids))
return -ENODEV;
if (set_properties) {
psmouse->vendor = "FocalTech";
psmouse->name = "FocalTech Touchpad in mouse emulation mode";
}
return 0;
}
int focaltech_init(struct psmouse *psmouse)
{
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
psmouse_reset(psmouse);
return 0;
}