/*
* HID driver for multitouch panels
*
* Copyright (c) 2010-2011 Stephane Chatty <chatty@enac.fr>
* Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com>
* Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France
*
* This code is partly based on hid-egalax.c:
*
* Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
* Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
* Copyright (c) 2010 Canonical, Ltd.
*
* This code is partly based on hid-3m-pct.c:
*
* Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
* Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
* Copyright (c) 2010 Canonical, Ltd.
*
*/
/*
* 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.
*/
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/input/mt.h>
#include "usbhid/usbhid.h"
MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
MODULE_DESCRIPTION("HID multitouch panels");
MODULE_LICENSE("GPL");
#include "hid-ids.h"
/* quirks to control the device */
#define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
#define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
#define MT_QUIRK_CYPRESS (1 << 2)
#define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
#define MT_QUIRK_VALID_IS_INRANGE (1 << 4)
#define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 5)
#define MT_QUIRK_EGALAX_XYZ_FIXUP (1 << 6)
#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 7)
struct mt_slot {
__s32 x, y, p, w, h;
__s32 contactid; /* the device ContactID assigned to this slot */
bool touch_state; /* is the touch valid? */
bool seen_in_this_frame;/* has this slot been updated */
};
struct mt_device {
struct mt_slot curdata; /* placeholder of incoming data */
struct mt_class *mtclass; /* our mt device class */
unsigned last_field_index; /* last field index of the report */
unsigned last_slot_field; /* the last field of a slot */
__s8 inputmode; /* InputMode HID feature, -1 if non-existent */
__u8 num_received; /* how many contacts we received */
__u8 num_expected; /* expected last contact index */
__u8 maxcontacts;
bool curvalid; /* is the current contact valid? */
struct mt_slot *slots;
};
struct mt_class {
__s32 name; /* MT_CLS */
__s32 quirks;
__s32 sn_move; /* Signal/noise ratio for move events */
__s32 sn_width; /* Signal/noise ratio for width events */
__s32 sn_height; /* Signal/noise ratio for height events */
__s32 sn_pressure; /* Signal/noise ratio for pressure events */
__u8 maxcontacts;
};
/* classes of device behavior */
#define MT_CLS_DEFAULT 0x0001
#define MT_CLS_CONFIDENCE 0x0002
#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0003
#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0004
#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0005
#define MT_CLS_DUAL_NSMU_CONTACTID 0x0006
/* vendor specific classes */
#define MT_CLS_3M 0x0101
#define MT_CLS_CYPRESS 0x0102
#define MT_CLS_EGALAX 0x0103
#define MT_DEFAULT_MAXCONTACT 10
/*
* these device-dependent functions determine what slot corresponds
* to a valid contact that was just read.
*/
static int cypress_compute_slot(struct mt_device *td)
{
if (td->curdata.contactid != 0 || td->num_received == 0)
return td->curdata.contactid;
else
return -1;
}
static int find_slot_from_contactid(struct mt_device *td)
{
int i;
for (i = 0; i < td->maxcontacts; ++i) {
if (td->slots[i].contactid == td->curdata.contactid &&
td->slots[i].touch_state)
return i;
}
for (i = 0; i < td->maxcontacts; ++i) {
if (!td->slots[i].seen_in_this_frame &&
!td->slots[i].touch_state)
return i;
}
/* should not occurs. If this happens that means
* that the device sent more touches that it says
* in the report descriptor. It is ignored then. */
return -1;
}
struct mt_class mt_classes[] = {
{ .name = MT_CLS_DEFAULT,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
{ .name = MT_CLS_CONFIDENCE,
.quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
{ .name = MT_CLS_CONFIDENCE_MINUS_ONE,
.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
{ .name = MT_CLS_DUAL_INRANGE_CONTACTID,
.quirks = MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_SLOT_IS_CONTACTID,
.maxcontacts = 2 },
{ .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
.quirks = MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_SLOT_IS_CONTACTNUMBER,
.maxcontacts = 2 },
{ .name = MT_CLS_DUAL_NSMU_CONTACTID,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
MT_QUIRK_SLOT_IS_CONTACTID,
.maxcontacts = 2 },
/*
* vendor specific classes
*/
{ .name = MT_CLS_3M,
.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
MT_QUIRK_SLOT_IS_CONTACTID,
.sn_move = 2048,
.sn_width = 128,
.sn_height = 128 },
{ .name = MT_CLS_CYPRESS,
.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
MT_QUIRK_CYPRESS,
.maxcontacts = 10 },
{ .name = MT_CLS_EGALAX,
.quirks = MT_QUIRK_SLOT_IS_CONTACTID |
MT_QUIRK_VALID_IS_INRANGE |
MT_QUIRK_EGALAX_XYZ_FIXUP,
.maxcontacts = 2,
.sn_move = 4096,
.sn_pressure = 32,
},
{ }
};
static void mt_feature_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct mt_device *td = hid_get_drvdata(hdev);
switch (usage->hid) {
case HID_DG_INPUTMODE:
td->inputmode = field->report->id;
break;
case HID_DG_CONTACTMAX:
td->maxcontacts = field->value[0];
if (td->mtclass->maxcontacts)
/* check if the maxcontacts is given by the class */
td->maxcontacts = td->mtclass->maxcontacts;
break;
}
}
static void set_abs(struct input_dev *input, unsigned int code,
struct hid_field *field, int snratio)
{
int fmin = field->logical_minimum;
int fmax = field->logical_maximum;
int fuzz = snratio ? (fmax - fmin) / snratio : 0;
input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
}
static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct mt_class *cls = td->mtclass;
__s32 quirks = cls->quirks;
switch (usage->hid & HID_USAGE_PAGE) {
case HID_UP_GENDESK:
switch (usage->hid) {
case HID_GD_X:
if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
field->logical_maximum = 32760;
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_POSITION_X);
set_abs(hi->input, ABS_MT_POSITION_X, field,
cls->sn_move);
/* touchscreen emulation */
set_abs(hi->input, ABS_X, field, cls->sn_move);
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
case HID_GD_Y:
if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
field->logical_maximum = 32760;
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_POSITION_Y);
set_abs(hi->input, ABS_MT_POSITION_Y, field,
cls->sn_move);
/* touchscreen emulation */
set_abs(hi->input, ABS_Y, field, cls->sn_move);
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
}
return 0;
case HID_UP_DIGITIZER:
switch (usage->hid) {
case HID_DG_INRANGE:
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
case HID_DG_CONFIDENCE:
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
case HID_DG_TIPSWITCH:
hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
case HID_DG_CONTACTID:
input_mt_init_slots(hi->input, td->maxcontacts);
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
case HID_DG_WIDTH:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TOUCH_MAJOR);
set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
cls->sn_width);
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
case HID_DG_HEIGHT:
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_TOUCH_MINOR);
set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
cls->sn_height);
input_set_abs_params(hi->input,
ABS_MT_ORIENTATION, 0, 1, 0, 0);
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
case HID_DG_TIPPRESSURE:
if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
field->logical_minimum = 0;
hid_map_usage(hi, usage, bit, max,
EV_ABS, ABS_MT_PRESSURE);
set_abs(hi->input, ABS_MT_PRESSURE, field,
cls->sn_pressure);
/* touchscreen emulation */
set_abs(hi->input, ABS_PRESSURE, field,
cls->sn_pressure);
td->last_slot_field = usage->hid;
td->last_field_index = field->index;
return 1;
case HID_DG_CONTACTCOUNT:
td->last_field_index = field->index;
return 1;
case HID_DG_CONTACTMAX:
/* we don't set td->last_slot_field as contactcount and
* contact max are global to the report */
td->last_field_index = field->index;
return -1;
}
/* let hid-input decide for the others */
return 0;
case 0xff000000:
/* we do not want to map these: no input-oriented meaning */
return -1;
}
return 0;
}
static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if (usage->type == EV_KEY || usage->type == EV_ABS)
set_bit(usage->type, hi->input->evbit);
return -1;
}
static int mt_compute_slot(struct mt_device *td)
{
__s32 quirks = td->mtclass->quirks;
if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
return td->curdata.contactid;
if (quirks & MT_QUIRK_CYPRESS)
return cypress_compute_slot(td);
if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
return td->num_received;
if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
return td->curdata.contactid - 1;
return find_slot_from_contactid(td);
}
/*
* this function is called when a whole contact has been processed,
* so that it can assign it to a slot and store the data there
*/
static void mt_complete_slot(struct mt_device *td)
{
td->curdata.seen_in_this_frame = true;
if (td->curvalid) {
int slotnum = mt_compute_slot(td);
if (slotnum >= 0 && slotnum < td->maxcontacts)
td->slots[slotnum] = td->curdata;
}
td->num_received++;
}
/*
* this function is called when a whole packet has been received and processed,
* so that it can decide what to send to the input layer.
*/
static void mt_emit_event(struct mt_device *td, struct input_dev *input)
{
int i;
for (i = 0; i < td->maxcontacts; ++i) {
struct mt_slot *s = &(td->slots[i]);
if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
!s->seen_in_this_frame) {
s->touch_state = false;
}
input_mt_slot(input, i);
input_mt_report_slot_state(input, MT_TOOL_FINGER,
s->touch_state);
if (s->touch_state) {
/* this finger is on the screen */
int wide = (s->w > s->h);
/* divided by two to match visual scale of touch */
int major = max(s->w, s->h) >> 1;
int minor = min(s->w, s->h) >> 1;
input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x);
input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y);
input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p);
input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
}
s->seen_in_this_frame = false;
}
input_mt_report_pointer_emulation(input, true);
input_sync(input);
td->num_received = 0;
}
static int mt_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct mt_device *td = hid_get_drvdata(hid);
__s32 quirks = td->mtclass->quirks;
if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
switch (usage->hid) {
case HID_DG_INRANGE:
if (quirks & MT_QUIRK_VALID_IS_INRANGE)
td->curvalid = value;
break;
case HID_DG_TIPSWITCH:
if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
td->curvalid = value;
td->curdata.touch_state = value;
break;
case HID_DG_CONFIDENCE:
if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
td->curvalid = value;
break;
case HID_DG_CONTACTID:
td->curdata.contactid = value;
break;
case HID_DG_TIPPRESSURE:
td->curdata.p = value;
break;
case HID_GD_X:
td->curdata.x = value;
break;
case HID_GD_Y:
td->curdata.y = value;
break;
case HID_DG_WIDTH:
td->curdata.w = value;
break;
case HID_DG_HEIGHT:
td->curdata.h = value;
break;
case HID_DG_CONTACTCOUNT:
/*
* Includes multi-packet support where subsequent
* packets are sent with zero contactcount.
*/
if (value)
td->num_expected = value;
break;
default:
/* fallback to the generic hidinput handling */
return 0;
}
if (usage->hid == td->last_slot_field) {
mt_complete_slot(td);
}
if (field->index == td->last_field_index
&& td->num_received >= td->num_expected)
mt_emit_event(td, field->hidinput->input);
}
/* we have handled the hidinput part, now remains hiddev */
if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
hid->hiddev_hid_event(hid, field, usage, value);
return 1;
}
static void mt_set_input_mode(struct hid_device *hdev)
{
struct mt_device *td = hid_get_drvdata(hdev);
struct hid_report *r;
struct hid_report_enum *re;
if (td->inputmode < 0)
return;
re = &(hdev->report_enum[HID_FEATURE_REPORT]);
r = re->report_id_hash[td->inputmode];
if (r) {
r->field[0]->value[0] = 0x02;
usbhid_submit_report(hdev, r, USB_DIR_OUT);
}
}
static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret, i;
struct mt_device *td;
struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */
for (i = 0; mt_classes[i].name ; i++) {
if (id->driver_data == mt_classes[i].name) {
mtclass = &(mt_classes[i]);
break;
}
}
/* This allows the driver to correctly support devices
* that emit events over several HID messages.
*/
hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
td = kzalloc(sizeof(struct mt_device), GFP_KERNEL);
if (!td) {
dev_err(&hdev->dev, "cannot allocate multitouch data\n");
return -ENOMEM;
}
td->mtclass = mtclass;
td->inputmode = -1;
hid_set_drvdata(hdev, td);
ret = hid_parse(hdev);
if (ret != 0)
goto fail;
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret)
goto fail;
if (!td->maxcontacts)
td->maxcontacts = MT_DEFAULT_MAXCONTACT;
td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot),
GFP_KERNEL);
if (!td->slots) {
dev_err(&hdev->dev, "cannot allocate multitouch slots\n");
hid_hw_stop(hdev);
ret = -ENOMEM;
goto fail;
}
mt_set_input_mode(hdev);
return 0;
fail:
kfree(td);
return ret;
}
#ifdef CONFIG_PM
static int mt_reset_resume(struct hid_device *hdev)
{
mt_set_input_mode(hdev);
return 0;
}
#endif
static void mt_remove(struct hid_device *hdev)
{
struct mt_device *td = hid_get_drvdata(hdev);
hid_hw_stop(hdev);
kfree(td->slots);
kfree(td);
hid_set_drvdata(hdev, NULL);
}
static const struct hid_device_id mt_devices[] = {
/* 3M panels */
{ .driver_data = MT_CLS_3M,
HID_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M1968) },
{ .driver_data = MT_CLS_3M,
HID_USB_DEVICE(USB_VENDOR_ID_3M,
USB_DEVICE_ID_3M2256) },
/* ActionStar panels */
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
USB_DEVICE_ID_ACTIONSTAR_1011) },
/* Cando panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
/* CVTouch panels */
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
USB_DEVICE_ID_CVTOUCH_SCREEN) },
/* Cypress panel */
{ .driver_data = MT_CLS_CYPRESS,
HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
/* eGalax devices (resistive) */
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
/* eGalax devices (capacitive) */
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
{ .driver_data = MT_CLS_EGALAX,
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
/* Elo TouchSystems IntelliTouch Plus panel */
{ .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
HID_USB_DEVICE(USB_VENDOR_ID_ELO,
USB_DEVICE_ID_ELO_TS2515) },
/* GeneralTouch panel */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
/* GoodTouch panels */
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
USB_DEVICE_ID_GOODTOUCH_000f) },
/* Ilitek dual touch panel */
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_ILITEK,
USB_DEVICE_ID_ILITEK_MULTITOUCH) },
/* IRTOUCH panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
/* Lumio panels */
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,
USB_DEVICE_ID_CRYSTALTOUCH) },
/* MosArt panels */
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
USB_DEVICE_ID_ASUS_T91MT)},
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
HID_USB_DEVICE(USB_VENDOR_ID_ASUS,
USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
HID_USB_DEVICE(USB_VENDOR_ID_TURBOX,
USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
/* PenMount panels */
{ .driver_data = MT_CLS_CONFIDENCE,
HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
USB_DEVICE_ID_PENMOUNT_PCI) },
/* PixCir-based panels */
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
USB_DEVICE_ID_HANVON_MULTITOUCH) },
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
/* Stantum panels */
{ .driver_data = MT_CLS_CONFIDENCE,
HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
USB_DEVICE_ID_MTP)},
{ .driver_data = MT_CLS_CONFIDENCE,
HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
USB_DEVICE_ID_MTP_STM)},
{ .driver_data = MT_CLS_CONFIDENCE,
HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
USB_DEVICE_ID_MTP_SITRONIX)},
/* Touch International panels */
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
/* Unitec panels */
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
{ .driver_data = MT_CLS_DEFAULT,
HID_USB_DEVICE(USB_VENDOR_ID_UNITEC,
USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
{ }
};
MODULE_DEVICE_TABLE(hid, mt_devices);
static const struct hid_usage_id mt_grabbed_usages[] = {
{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
};
static struct hid_driver mt_driver = {
.name = "hid-multitouch",
.id_table = mt_devices,
.probe = mt_probe,
.remove = mt_remove,
.input_mapping = mt_input_mapping,
.input_mapped = mt_input_mapped,
.feature_mapping = mt_feature_mapping,
.usage_table = mt_grabbed_usages,
.event = mt_event,
#ifdef CONFIG_PM
.reset_resume = mt_reset_resume,
#endif
};
static int __init mt_init(void)
{
return hid_register_driver(&mt_driver);
}
static void __exit mt_exit(void)
{
hid_unregister_driver(&mt_driver);
}
module_init(mt_init);
module_exit(mt_exit);
