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![Jiri Kosina](/assets/img/avatar_default.png)
- hid-multitouch devices should be put into high-latency mode when suspended in order to be in line with Windows Precision Touchpad guidelines. From Blaž Hrastnik.
2172 lines
60 KiB
C
2172 lines
60 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* HID driver for multitouch panels
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*
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* Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
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* Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>
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* Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
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* Copyright (c) 2012-2013 Red Hat, Inc
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*
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* This code is partly based on hid-egalax.c:
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*
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* Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
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* Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
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* Copyright (c) 2010 Canonical, Ltd.
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*
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* This code is partly based on hid-3m-pct.c:
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*
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* Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
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* Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
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* Copyright (c) 2010 Canonical, Ltd.
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*/
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/*
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*/
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/*
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* This driver is regularly tested thanks to the test suite in hid-tools[1].
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* Please run these regression tests before patching this module so that
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* your patch won't break existing known devices.
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*
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* [1] https://gitlab.freedesktop.org/libevdev/hid-tools
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*/
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#include <linux/device.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/input/mt.h>
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#include <linux/jiffies.h>
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#include <linux/string.h>
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#include <linux/timer.h>
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MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
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MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
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MODULE_DESCRIPTION("HID multitouch panels");
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MODULE_LICENSE("GPL");
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#include "hid-ids.h"
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/* quirks to control the device */
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#define MT_QUIRK_NOT_SEEN_MEANS_UP BIT(0)
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#define MT_QUIRK_SLOT_IS_CONTACTID BIT(1)
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#define MT_QUIRK_CYPRESS BIT(2)
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#define MT_QUIRK_SLOT_IS_CONTACTNUMBER BIT(3)
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#define MT_QUIRK_ALWAYS_VALID BIT(4)
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#define MT_QUIRK_VALID_IS_INRANGE BIT(5)
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#define MT_QUIRK_VALID_IS_CONFIDENCE BIT(6)
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#define MT_QUIRK_CONFIDENCE BIT(7)
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#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE BIT(8)
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#define MT_QUIRK_NO_AREA BIT(9)
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#define MT_QUIRK_IGNORE_DUPLICATES BIT(10)
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#define MT_QUIRK_HOVERING BIT(11)
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#define MT_QUIRK_CONTACT_CNT_ACCURATE BIT(12)
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#define MT_QUIRK_FORCE_GET_FEATURE BIT(13)
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#define MT_QUIRK_FIX_CONST_CONTACT_ID BIT(14)
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#define MT_QUIRK_TOUCH_SIZE_SCALING BIT(15)
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#define MT_QUIRK_STICKY_FINGERS BIT(16)
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#define MT_QUIRK_ASUS_CUSTOM_UP BIT(17)
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#define MT_QUIRK_WIN8_PTP_BUTTONS BIT(18)
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#define MT_QUIRK_SEPARATE_APP_REPORT BIT(19)
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#define MT_QUIRK_FORCE_MULTI_INPUT BIT(20)
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#define MT_INPUTMODE_TOUCHSCREEN 0x02
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#define MT_INPUTMODE_TOUCHPAD 0x03
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#define MT_BUTTONTYPE_CLICKPAD 0
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enum latency_mode {
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HID_LATENCY_NORMAL = 0,
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HID_LATENCY_HIGH = 1,
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};
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#define MT_IO_FLAGS_RUNNING 0
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#define MT_IO_FLAGS_ACTIVE_SLOTS 1
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#define MT_IO_FLAGS_PENDING_SLOTS 2
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static const bool mtrue = true; /* default for true */
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static const bool mfalse; /* default for false */
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static const __s32 mzero; /* default for 0 */
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#define DEFAULT_TRUE ((void *)&mtrue)
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#define DEFAULT_FALSE ((void *)&mfalse)
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#define DEFAULT_ZERO ((void *)&mzero)
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struct mt_usages {
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struct list_head list;
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__s32 *x, *y, *cx, *cy, *p, *w, *h, *a;
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__s32 *contactid; /* the device ContactID assigned to this slot */
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bool *tip_state; /* is the touch valid? */
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bool *inrange_state; /* is the finger in proximity of the sensor? */
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bool *confidence_state; /* is the touch made by a finger? */
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};
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struct mt_application {
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struct list_head list;
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unsigned int application;
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unsigned int report_id;
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struct list_head mt_usages; /* mt usages list */
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__s32 quirks;
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__s32 *scantime; /* scantime reported */
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__s32 scantime_logical_max; /* max value for raw scantime */
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__s32 *raw_cc; /* contact count in the report */
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int left_button_state; /* left button state */
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unsigned int mt_flags; /* flags to pass to input-mt */
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unsigned long *pending_palm_slots; /* slots where we reported palm
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* and need to release */
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__u8 num_received; /* how many contacts we received */
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__u8 num_expected; /* expected last contact index */
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__u8 buttons_count; /* number of physical buttons per touchpad */
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__u8 touches_by_report; /* how many touches are present in one report:
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* 1 means we should use a serial protocol
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* > 1 means hybrid (multitouch) protocol
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*/
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__s32 dev_time; /* the scan time provided by the device */
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unsigned long jiffies; /* the frame's jiffies */
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int timestamp; /* the timestamp to be sent */
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int prev_scantime; /* scantime reported previously */
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bool have_contact_count;
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};
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struct mt_class {
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__s32 name; /* MT_CLS */
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__s32 quirks;
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__s32 sn_move; /* Signal/noise ratio for move events */
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__s32 sn_width; /* Signal/noise ratio for width events */
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__s32 sn_height; /* Signal/noise ratio for height events */
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__s32 sn_pressure; /* Signal/noise ratio for pressure events */
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__u8 maxcontacts;
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bool is_indirect; /* true for touchpads */
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bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */
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};
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struct mt_report_data {
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struct list_head list;
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struct hid_report *report;
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struct mt_application *application;
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bool is_mt_collection;
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};
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struct mt_device {
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struct mt_class mtclass; /* our mt device class */
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struct timer_list release_timer; /* to release sticky fingers */
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struct hid_device *hdev; /* hid_device we're attached to */
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unsigned long mt_io_flags; /* mt flags (MT_IO_FLAGS_*) */
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__u8 inputmode_value; /* InputMode HID feature value */
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__u8 maxcontacts;
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bool is_buttonpad; /* is this device a button pad? */
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bool serial_maybe; /* need to check for serial protocol */
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struct list_head applications;
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struct list_head reports;
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};
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static void mt_post_parse_default_settings(struct mt_device *td,
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struct mt_application *app);
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static void mt_post_parse(struct mt_device *td, struct mt_application *app);
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/* classes of device behavior */
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#define MT_CLS_DEFAULT 0x0001
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#define MT_CLS_SERIAL 0x0002
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#define MT_CLS_CONFIDENCE 0x0003
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#define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
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#define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
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#define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
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#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
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/* reserved 0x0008 */
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#define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
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#define MT_CLS_NSMU 0x000a
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/* reserved 0x0010 */
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/* reserved 0x0011 */
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#define MT_CLS_WIN_8 0x0012
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#define MT_CLS_EXPORT_ALL_INPUTS 0x0013
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/* reserved 0x0014 */
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#define MT_CLS_WIN_8_FORCE_MULTI_INPUT 0x0015
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/* vendor specific classes */
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#define MT_CLS_3M 0x0101
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/* reserved 0x0102 */
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#define MT_CLS_EGALAX 0x0103
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#define MT_CLS_EGALAX_SERIAL 0x0104
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#define MT_CLS_TOPSEED 0x0105
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#define MT_CLS_PANASONIC 0x0106
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#define MT_CLS_FLATFROG 0x0107
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#define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
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#define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
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#define MT_CLS_LG 0x010a
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#define MT_CLS_ASUS 0x010b
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#define MT_CLS_VTL 0x0110
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#define MT_CLS_GOOGLE 0x0111
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#define MT_CLS_RAZER_BLADE_STEALTH 0x0112
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#define MT_CLS_SMART_TECH 0x0113
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#define MT_DEFAULT_MAXCONTACT 10
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#define MT_MAX_MAXCONTACT 250
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/*
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* Resync device and local timestamps after that many microseconds without
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* receiving data.
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*/
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#define MAX_TIMESTAMP_INTERVAL 1000000
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#define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
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#define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
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/*
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* these device-dependent functions determine what slot corresponds
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* to a valid contact that was just read.
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*/
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static int cypress_compute_slot(struct mt_application *application,
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struct mt_usages *slot)
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{
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if (*slot->contactid != 0 || application->num_received == 0)
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return *slot->contactid;
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else
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return -1;
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}
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static const struct mt_class mt_classes[] = {
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{ .name = MT_CLS_DEFAULT,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_CONTACT_CNT_ACCURATE },
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{ .name = MT_CLS_NSMU,
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.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
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{ .name = MT_CLS_SERIAL,
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.quirks = MT_QUIRK_ALWAYS_VALID},
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{ .name = MT_CLS_CONFIDENCE,
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.quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
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{ .name = MT_CLS_CONFIDENCE_CONTACT_ID,
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.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
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MT_QUIRK_SLOT_IS_CONTACTID },
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{ .name = MT_CLS_CONFIDENCE_MINUS_ONE,
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.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
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MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
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{ .name = MT_CLS_DUAL_INRANGE_CONTACTID,
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.quirks = MT_QUIRK_VALID_IS_INRANGE |
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MT_QUIRK_SLOT_IS_CONTACTID,
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.maxcontacts = 2 },
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{ .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
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.quirks = MT_QUIRK_VALID_IS_INRANGE |
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MT_QUIRK_SLOT_IS_CONTACTNUMBER,
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.maxcontacts = 2 },
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{ .name = MT_CLS_INRANGE_CONTACTNUMBER,
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.quirks = MT_QUIRK_VALID_IS_INRANGE |
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MT_QUIRK_SLOT_IS_CONTACTNUMBER },
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{ .name = MT_CLS_WIN_8,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_IGNORE_DUPLICATES |
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MT_QUIRK_HOVERING |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_STICKY_FINGERS |
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MT_QUIRK_WIN8_PTP_BUTTONS,
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.export_all_inputs = true },
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{ .name = MT_CLS_EXPORT_ALL_INPUTS,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_CONTACT_CNT_ACCURATE,
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.export_all_inputs = true },
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{ .name = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_IGNORE_DUPLICATES |
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MT_QUIRK_HOVERING |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_STICKY_FINGERS |
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MT_QUIRK_WIN8_PTP_BUTTONS |
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MT_QUIRK_FORCE_MULTI_INPUT,
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.export_all_inputs = true },
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/*
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* vendor specific classes
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*/
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{ .name = MT_CLS_3M,
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.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
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MT_QUIRK_SLOT_IS_CONTACTID |
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MT_QUIRK_TOUCH_SIZE_SCALING,
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.sn_move = 2048,
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.sn_width = 128,
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.sn_height = 128,
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.maxcontacts = 60,
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},
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{ .name = MT_CLS_EGALAX,
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.quirks = MT_QUIRK_SLOT_IS_CONTACTID |
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MT_QUIRK_VALID_IS_INRANGE,
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.sn_move = 4096,
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.sn_pressure = 32,
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},
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{ .name = MT_CLS_EGALAX_SERIAL,
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.quirks = MT_QUIRK_SLOT_IS_CONTACTID |
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MT_QUIRK_ALWAYS_VALID,
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.sn_move = 4096,
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.sn_pressure = 32,
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},
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{ .name = MT_CLS_TOPSEED,
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.quirks = MT_QUIRK_ALWAYS_VALID,
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.is_indirect = true,
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.maxcontacts = 2,
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},
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{ .name = MT_CLS_PANASONIC,
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.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
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.maxcontacts = 4 },
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{ .name = MT_CLS_GENERALTOUCH_TWOFINGERS,
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.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
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MT_QUIRK_VALID_IS_INRANGE |
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MT_QUIRK_SLOT_IS_CONTACTID,
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.maxcontacts = 2
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},
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{ .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
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.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
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MT_QUIRK_SLOT_IS_CONTACTID
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},
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{ .name = MT_CLS_FLATFROG,
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.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
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MT_QUIRK_NO_AREA,
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.sn_move = 2048,
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.maxcontacts = 40,
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},
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{ .name = MT_CLS_LG,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_FIX_CONST_CONTACT_ID |
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MT_QUIRK_IGNORE_DUPLICATES |
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MT_QUIRK_HOVERING |
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MT_QUIRK_CONTACT_CNT_ACCURATE },
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{ .name = MT_CLS_ASUS,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_ASUS_CUSTOM_UP },
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{ .name = MT_CLS_VTL,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_FORCE_GET_FEATURE,
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},
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{ .name = MT_CLS_GOOGLE,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_SLOT_IS_CONTACTID |
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MT_QUIRK_HOVERING
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},
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{ .name = MT_CLS_RAZER_BLADE_STEALTH,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_IGNORE_DUPLICATES |
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MT_QUIRK_HOVERING |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_WIN8_PTP_BUTTONS,
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},
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{ .name = MT_CLS_SMART_TECH,
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.quirks = MT_QUIRK_ALWAYS_VALID |
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MT_QUIRK_IGNORE_DUPLICATES |
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MT_QUIRK_CONTACT_CNT_ACCURATE |
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MT_QUIRK_SEPARATE_APP_REPORT,
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},
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{ }
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};
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static ssize_t mt_show_quirks(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct hid_device *hdev = to_hid_device(dev);
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struct mt_device *td = hid_get_drvdata(hdev);
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return sprintf(buf, "%u\n", td->mtclass.quirks);
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}
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static ssize_t mt_set_quirks(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t count)
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{
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struct hid_device *hdev = to_hid_device(dev);
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struct mt_device *td = hid_get_drvdata(hdev);
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struct mt_application *application;
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unsigned long val;
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if (kstrtoul(buf, 0, &val))
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return -EINVAL;
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td->mtclass.quirks = val;
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list_for_each_entry(application, &td->applications, list) {
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application->quirks = val;
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if (!application->have_contact_count)
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application->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
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}
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return count;
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}
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static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
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static struct attribute *sysfs_attrs[] = {
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&dev_attr_quirks.attr,
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NULL
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};
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static const struct attribute_group mt_attribute_group = {
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.attrs = sysfs_attrs
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};
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static void mt_get_feature(struct hid_device *hdev, struct hid_report *report)
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{
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int ret;
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u32 size = hid_report_len(report);
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u8 *buf;
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/*
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* Do not fetch the feature report if the device has been explicitly
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* marked as non-capable.
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*/
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if (hdev->quirks & HID_QUIRK_NO_INIT_REPORTS)
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return;
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buf = hid_alloc_report_buf(report, GFP_KERNEL);
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if (!buf)
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return;
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ret = hid_hw_raw_request(hdev, report->id, buf, size,
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HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
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if (ret < 0) {
|
|
dev_warn(&hdev->dev, "failed to fetch feature %d\n",
|
|
report->id);
|
|
} else {
|
|
ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, buf,
|
|
size, 0);
|
|
if (ret)
|
|
dev_warn(&hdev->dev, "failed to report feature\n");
|
|
}
|
|
|
|
kfree(buf);
|
|
}
|
|
|
|
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_CONTACTMAX:
|
|
mt_get_feature(hdev, field->report);
|
|
|
|
td->maxcontacts = field->value[0];
|
|
if (!td->maxcontacts &&
|
|
field->logical_maximum <= MT_MAX_MAXCONTACT)
|
|
td->maxcontacts = field->logical_maximum;
|
|
if (td->mtclass.maxcontacts)
|
|
/* check if the maxcontacts is given by the class */
|
|
td->maxcontacts = td->mtclass.maxcontacts;
|
|
|
|
break;
|
|
case HID_DG_BUTTONTYPE:
|
|
if (usage->usage_index >= field->report_count) {
|
|
dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n");
|
|
break;
|
|
}
|
|
|
|
mt_get_feature(hdev, field->report);
|
|
if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD)
|
|
td->is_buttonpad = true;
|
|
|
|
break;
|
|
case 0xff0000c5:
|
|
/* Retrieve the Win8 blob once to enable some devices */
|
|
if (usage->usage_index == 0)
|
|
mt_get_feature(hdev, field->report);
|
|
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);
|
|
input_abs_set_res(input, code, hidinput_calc_abs_res(field, code));
|
|
}
|
|
|
|
static struct mt_usages *mt_allocate_usage(struct hid_device *hdev,
|
|
struct mt_application *application)
|
|
{
|
|
struct mt_usages *usage;
|
|
|
|
usage = devm_kzalloc(&hdev->dev, sizeof(*usage), GFP_KERNEL);
|
|
if (!usage)
|
|
return NULL;
|
|
|
|
/* set some defaults so we do not need to check for null pointers */
|
|
usage->x = DEFAULT_ZERO;
|
|
usage->y = DEFAULT_ZERO;
|
|
usage->cx = DEFAULT_ZERO;
|
|
usage->cy = DEFAULT_ZERO;
|
|
usage->p = DEFAULT_ZERO;
|
|
usage->w = DEFAULT_ZERO;
|
|
usage->h = DEFAULT_ZERO;
|
|
usage->a = DEFAULT_ZERO;
|
|
usage->contactid = DEFAULT_ZERO;
|
|
usage->tip_state = DEFAULT_FALSE;
|
|
usage->inrange_state = DEFAULT_FALSE;
|
|
usage->confidence_state = DEFAULT_TRUE;
|
|
|
|
list_add_tail(&usage->list, &application->mt_usages);
|
|
|
|
return usage;
|
|
}
|
|
|
|
static struct mt_application *mt_allocate_application(struct mt_device *td,
|
|
struct hid_report *report)
|
|
{
|
|
unsigned int application = report->application;
|
|
struct mt_application *mt_application;
|
|
|
|
mt_application = devm_kzalloc(&td->hdev->dev, sizeof(*mt_application),
|
|
GFP_KERNEL);
|
|
if (!mt_application)
|
|
return NULL;
|
|
|
|
mt_application->application = application;
|
|
INIT_LIST_HEAD(&mt_application->mt_usages);
|
|
|
|
if (application == HID_DG_TOUCHSCREEN)
|
|
mt_application->mt_flags |= INPUT_MT_DIRECT;
|
|
|
|
/*
|
|
* Model touchscreens providing buttons as touchpads.
|
|
*/
|
|
if (application == HID_DG_TOUCHPAD) {
|
|
mt_application->mt_flags |= INPUT_MT_POINTER;
|
|
td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
|
|
}
|
|
|
|
mt_application->scantime = DEFAULT_ZERO;
|
|
mt_application->raw_cc = DEFAULT_ZERO;
|
|
mt_application->quirks = td->mtclass.quirks;
|
|
mt_application->report_id = report->id;
|
|
|
|
list_add_tail(&mt_application->list, &td->applications);
|
|
|
|
return mt_application;
|
|
}
|
|
|
|
static struct mt_application *mt_find_application(struct mt_device *td,
|
|
struct hid_report *report)
|
|
{
|
|
unsigned int application = report->application;
|
|
struct mt_application *tmp, *mt_application = NULL;
|
|
|
|
list_for_each_entry(tmp, &td->applications, list) {
|
|
if (application == tmp->application) {
|
|
if (!(td->mtclass.quirks & MT_QUIRK_SEPARATE_APP_REPORT) ||
|
|
tmp->report_id == report->id) {
|
|
mt_application = tmp;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!mt_application)
|
|
mt_application = mt_allocate_application(td, report);
|
|
|
|
return mt_application;
|
|
}
|
|
|
|
static struct mt_report_data *mt_allocate_report_data(struct mt_device *td,
|
|
struct hid_report *report)
|
|
{
|
|
struct mt_report_data *rdata;
|
|
struct hid_field *field;
|
|
int r, n;
|
|
|
|
rdata = devm_kzalloc(&td->hdev->dev, sizeof(*rdata), GFP_KERNEL);
|
|
if (!rdata)
|
|
return NULL;
|
|
|
|
rdata->report = report;
|
|
rdata->application = mt_find_application(td, report);
|
|
|
|
if (!rdata->application) {
|
|
devm_kfree(&td->hdev->dev, rdata);
|
|
return NULL;
|
|
}
|
|
|
|
for (r = 0; r < report->maxfield; r++) {
|
|
field = report->field[r];
|
|
|
|
if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
|
|
continue;
|
|
|
|
for (n = 0; n < field->report_count; n++) {
|
|
if (field->usage[n].hid == HID_DG_CONTACTID)
|
|
rdata->is_mt_collection = true;
|
|
}
|
|
}
|
|
|
|
list_add_tail(&rdata->list, &td->reports);
|
|
|
|
return rdata;
|
|
}
|
|
|
|
static struct mt_report_data *mt_find_report_data(struct mt_device *td,
|
|
struct hid_report *report)
|
|
{
|
|
struct mt_report_data *tmp, *rdata = NULL;
|
|
|
|
list_for_each_entry(tmp, &td->reports, list) {
|
|
if (report == tmp->report) {
|
|
rdata = tmp;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!rdata)
|
|
rdata = mt_allocate_report_data(td, report);
|
|
|
|
return rdata;
|
|
}
|
|
|
|
static void mt_store_field(struct hid_device *hdev,
|
|
struct mt_application *application,
|
|
__s32 *value,
|
|
size_t offset)
|
|
{
|
|
struct mt_usages *usage;
|
|
__s32 **target;
|
|
|
|
if (list_empty(&application->mt_usages))
|
|
usage = mt_allocate_usage(hdev, application);
|
|
else
|
|
usage = list_last_entry(&application->mt_usages,
|
|
struct mt_usages,
|
|
list);
|
|
|
|
if (!usage)
|
|
return;
|
|
|
|
target = (__s32 **)((char *)usage + offset);
|
|
|
|
/* the value has already been filled, create a new slot */
|
|
if (*target != DEFAULT_TRUE &&
|
|
*target != DEFAULT_FALSE &&
|
|
*target != DEFAULT_ZERO) {
|
|
if (usage->contactid == DEFAULT_ZERO ||
|
|
usage->x == DEFAULT_ZERO ||
|
|
usage->y == DEFAULT_ZERO) {
|
|
hid_dbg(hdev,
|
|
"ignoring duplicate usage on incomplete");
|
|
return;
|
|
}
|
|
usage = mt_allocate_usage(hdev, application);
|
|
if (!usage)
|
|
return;
|
|
|
|
target = (__s32 **)((char *)usage + offset);
|
|
}
|
|
|
|
*target = value;
|
|
}
|
|
|
|
#define MT_STORE_FIELD(__name) \
|
|
mt_store_field(hdev, app, \
|
|
&field->value[usage->usage_index], \
|
|
offsetof(struct mt_usages, __name))
|
|
|
|
static int mt_touch_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_application *app)
|
|
{
|
|
struct mt_device *td = hid_get_drvdata(hdev);
|
|
struct mt_class *cls = &td->mtclass;
|
|
int code;
|
|
struct hid_usage *prev_usage = NULL;
|
|
|
|
/*
|
|
* Model touchscreens providing buttons as touchpads.
|
|
*/
|
|
if (field->application == HID_DG_TOUCHSCREEN &&
|
|
(usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) {
|
|
app->mt_flags |= INPUT_MT_POINTER;
|
|
td->inputmode_value = MT_INPUTMODE_TOUCHPAD;
|
|
}
|
|
|
|
/* count the buttons on touchpads */
|
|
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON)
|
|
app->buttons_count++;
|
|
|
|
if (usage->usage_index)
|
|
prev_usage = &field->usage[usage->usage_index - 1];
|
|
|
|
switch (usage->hid & HID_USAGE_PAGE) {
|
|
|
|
case HID_UP_GENDESK:
|
|
switch (usage->hid) {
|
|
case HID_GD_X:
|
|
if (prev_usage && (prev_usage->hid == usage->hid)) {
|
|
code = ABS_MT_TOOL_X;
|
|
MT_STORE_FIELD(cx);
|
|
} else {
|
|
code = ABS_MT_POSITION_X;
|
|
MT_STORE_FIELD(x);
|
|
}
|
|
|
|
set_abs(hi->input, code, field, cls->sn_move);
|
|
|
|
/*
|
|
* A system multi-axis that exports X and Y has a high
|
|
* chance of being used directly on a surface
|
|
*/
|
|
if (field->application == HID_GD_SYSTEM_MULTIAXIS) {
|
|
__set_bit(INPUT_PROP_DIRECT,
|
|
hi->input->propbit);
|
|
input_set_abs_params(hi->input,
|
|
ABS_MT_TOOL_TYPE,
|
|
MT_TOOL_DIAL,
|
|
MT_TOOL_DIAL, 0, 0);
|
|
}
|
|
|
|
return 1;
|
|
case HID_GD_Y:
|
|
if (prev_usage && (prev_usage->hid == usage->hid)) {
|
|
code = ABS_MT_TOOL_Y;
|
|
MT_STORE_FIELD(cy);
|
|
} else {
|
|
code = ABS_MT_POSITION_Y;
|
|
MT_STORE_FIELD(y);
|
|
}
|
|
|
|
set_abs(hi->input, code, field, cls->sn_move);
|
|
|
|
return 1;
|
|
}
|
|
return 0;
|
|
|
|
case HID_UP_DIGITIZER:
|
|
switch (usage->hid) {
|
|
case HID_DG_INRANGE:
|
|
if (app->quirks & MT_QUIRK_HOVERING) {
|
|
input_set_abs_params(hi->input,
|
|
ABS_MT_DISTANCE, 0, 1, 0, 0);
|
|
}
|
|
MT_STORE_FIELD(inrange_state);
|
|
return 1;
|
|
case HID_DG_CONFIDENCE:
|
|
if ((cls->name == MT_CLS_WIN_8 ||
|
|
cls->name == MT_CLS_WIN_8_FORCE_MULTI_INPUT) &&
|
|
(field->application == HID_DG_TOUCHPAD ||
|
|
field->application == HID_DG_TOUCHSCREEN))
|
|
app->quirks |= MT_QUIRK_CONFIDENCE;
|
|
|
|
if (app->quirks & MT_QUIRK_CONFIDENCE)
|
|
input_set_abs_params(hi->input,
|
|
ABS_MT_TOOL_TYPE,
|
|
MT_TOOL_FINGER,
|
|
MT_TOOL_PALM, 0, 0);
|
|
|
|
MT_STORE_FIELD(confidence_state);
|
|
return 1;
|
|
case HID_DG_TIPSWITCH:
|
|
if (field->application != HID_GD_SYSTEM_MULTIAXIS)
|
|
input_set_capability(hi->input,
|
|
EV_KEY, BTN_TOUCH);
|
|
MT_STORE_FIELD(tip_state);
|
|
return 1;
|
|
case HID_DG_CONTACTID:
|
|
MT_STORE_FIELD(contactid);
|
|
app->touches_by_report++;
|
|
return 1;
|
|
case HID_DG_WIDTH:
|
|
if (!(app->quirks & MT_QUIRK_NO_AREA))
|
|
set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field,
|
|
cls->sn_width);
|
|
MT_STORE_FIELD(w);
|
|
return 1;
|
|
case HID_DG_HEIGHT:
|
|
if (!(app->quirks & MT_QUIRK_NO_AREA)) {
|
|
set_abs(hi->input, ABS_MT_TOUCH_MINOR, field,
|
|
cls->sn_height);
|
|
|
|
/*
|
|
* Only set ABS_MT_ORIENTATION if it is not
|
|
* already set by the HID_DG_AZIMUTH usage.
|
|
*/
|
|
if (!test_bit(ABS_MT_ORIENTATION,
|
|
hi->input->absbit))
|
|
input_set_abs_params(hi->input,
|
|
ABS_MT_ORIENTATION, 0, 1, 0, 0);
|
|
}
|
|
MT_STORE_FIELD(h);
|
|
return 1;
|
|
case HID_DG_TIPPRESSURE:
|
|
set_abs(hi->input, ABS_MT_PRESSURE, field,
|
|
cls->sn_pressure);
|
|
MT_STORE_FIELD(p);
|
|
return 1;
|
|
case HID_DG_SCANTIME:
|
|
input_set_capability(hi->input, EV_MSC, MSC_TIMESTAMP);
|
|
app->scantime = &field->value[usage->usage_index];
|
|
app->scantime_logical_max = field->logical_maximum;
|
|
return 1;
|
|
case HID_DG_CONTACTCOUNT:
|
|
app->have_contact_count = true;
|
|
app->raw_cc = &field->value[usage->usage_index];
|
|
return 1;
|
|
case HID_DG_AZIMUTH:
|
|
/*
|
|
* Azimuth has the range of [0, MAX) representing a full
|
|
* revolution. Set ABS_MT_ORIENTATION to a quarter of
|
|
* MAX according the definition of ABS_MT_ORIENTATION
|
|
*/
|
|
input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
|
|
-field->logical_maximum / 4,
|
|
field->logical_maximum / 4,
|
|
cls->sn_move ?
|
|
field->logical_maximum / cls->sn_move : 0, 0);
|
|
MT_STORE_FIELD(a);
|
|
return 1;
|
|
case HID_DG_CONTACTMAX:
|
|
/* contact max are global to the report */
|
|
return -1;
|
|
case HID_DG_TOUCH:
|
|
/* Legacy devices use TIPSWITCH and not TOUCH.
|
|
* Let's just ignore this field. */
|
|
return -1;
|
|
}
|
|
/* let hid-input decide for the others */
|
|
return 0;
|
|
|
|
case HID_UP_BUTTON:
|
|
code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE);
|
|
/*
|
|
* MS PTP spec says that external buttons left and right have
|
|
* usages 2 and 3.
|
|
*/
|
|
if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) &&
|
|
field->application == HID_DG_TOUCHPAD &&
|
|
(usage->hid & HID_USAGE) > 1)
|
|
code--;
|
|
|
|
if (field->application == HID_GD_SYSTEM_MULTIAXIS)
|
|
code = BTN_0 + ((usage->hid - 1) & HID_USAGE);
|
|
|
|
hid_map_usage(hi, usage, bit, max, EV_KEY, code);
|
|
if (!*bit)
|
|
return -1;
|
|
input_set_capability(hi->input, EV_KEY, code);
|
|
return 1;
|
|
|
|
case 0xff000000:
|
|
/* we do not want to map these: no input-oriented meaning */
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt_compute_slot(struct mt_device *td, struct mt_application *app,
|
|
struct mt_usages *slot,
|
|
struct input_dev *input)
|
|
{
|
|
__s32 quirks = app->quirks;
|
|
|
|
if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
|
|
return *slot->contactid;
|
|
|
|
if (quirks & MT_QUIRK_CYPRESS)
|
|
return cypress_compute_slot(app, slot);
|
|
|
|
if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER)
|
|
return app->num_received;
|
|
|
|
if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE)
|
|
return *slot->contactid - 1;
|
|
|
|
return input_mt_get_slot_by_key(input, *slot->contactid);
|
|
}
|
|
|
|
static void mt_release_pending_palms(struct mt_device *td,
|
|
struct mt_application *app,
|
|
struct input_dev *input)
|
|
{
|
|
int slotnum;
|
|
bool need_sync = false;
|
|
|
|
for_each_set_bit(slotnum, app->pending_palm_slots, td->maxcontacts) {
|
|
clear_bit(slotnum, app->pending_palm_slots);
|
|
|
|
input_mt_slot(input, slotnum);
|
|
input_mt_report_slot_inactive(input);
|
|
|
|
need_sync = true;
|
|
}
|
|
|
|
if (need_sync) {
|
|
input_mt_sync_frame(input);
|
|
input_sync(input);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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_sync_frame(struct mt_device *td, struct mt_application *app,
|
|
struct input_dev *input)
|
|
{
|
|
if (app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS)
|
|
input_event(input, EV_KEY, BTN_LEFT, app->left_button_state);
|
|
|
|
input_mt_sync_frame(input);
|
|
input_event(input, EV_MSC, MSC_TIMESTAMP, app->timestamp);
|
|
input_sync(input);
|
|
|
|
mt_release_pending_palms(td, app, input);
|
|
|
|
app->num_received = 0;
|
|
app->left_button_state = 0;
|
|
|
|
if (test_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags))
|
|
set_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags);
|
|
else
|
|
clear_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags);
|
|
clear_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags);
|
|
}
|
|
|
|
static int mt_compute_timestamp(struct mt_application *app, __s32 value)
|
|
{
|
|
long delta = value - app->prev_scantime;
|
|
unsigned long jdelta = jiffies_to_usecs(jiffies - app->jiffies);
|
|
|
|
app->jiffies = jiffies;
|
|
|
|
if (delta < 0)
|
|
delta += app->scantime_logical_max;
|
|
|
|
/* HID_DG_SCANTIME is expressed in 100us, we want it in us. */
|
|
delta *= 100;
|
|
|
|
if (jdelta > MAX_TIMESTAMP_INTERVAL)
|
|
/* No data received for a while, resync the timestamp. */
|
|
return 0;
|
|
else
|
|
return app->timestamp + delta;
|
|
}
|
|
|
|
static int mt_touch_event(struct hid_device *hid, struct hid_field *field,
|
|
struct hid_usage *usage, __s32 value)
|
|
{
|
|
/* we will handle the hidinput part later, now remains hiddev */
|
|
if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
|
|
hid->hiddev_hid_event(hid, field, usage, value);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int mt_process_slot(struct mt_device *td, struct input_dev *input,
|
|
struct mt_application *app,
|
|
struct mt_usages *slot)
|
|
{
|
|
struct input_mt *mt = input->mt;
|
|
__s32 quirks = app->quirks;
|
|
bool valid = true;
|
|
bool confidence_state = true;
|
|
bool inrange_state = false;
|
|
int active;
|
|
int slotnum;
|
|
int tool = MT_TOOL_FINGER;
|
|
|
|
if (!slot)
|
|
return -EINVAL;
|
|
|
|
if ((quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) &&
|
|
app->num_received >= app->num_expected)
|
|
return -EAGAIN;
|
|
|
|
if (!(quirks & MT_QUIRK_ALWAYS_VALID)) {
|
|
if (quirks & MT_QUIRK_VALID_IS_INRANGE)
|
|
valid = *slot->inrange_state;
|
|
if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
|
|
valid = *slot->tip_state;
|
|
if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE)
|
|
valid = *slot->confidence_state;
|
|
|
|
if (!valid)
|
|
return 0;
|
|
}
|
|
|
|
slotnum = mt_compute_slot(td, app, slot, input);
|
|
if (slotnum < 0 || slotnum >= td->maxcontacts)
|
|
return 0;
|
|
|
|
if ((quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) {
|
|
struct input_mt_slot *i_slot = &mt->slots[slotnum];
|
|
|
|
if (input_mt_is_active(i_slot) &&
|
|
input_mt_is_used(mt, i_slot))
|
|
return -EAGAIN;
|
|
}
|
|
|
|
if (quirks & MT_QUIRK_CONFIDENCE)
|
|
confidence_state = *slot->confidence_state;
|
|
|
|
if (quirks & MT_QUIRK_HOVERING)
|
|
inrange_state = *slot->inrange_state;
|
|
|
|
active = *slot->tip_state || inrange_state;
|
|
|
|
if (app->application == HID_GD_SYSTEM_MULTIAXIS)
|
|
tool = MT_TOOL_DIAL;
|
|
else if (unlikely(!confidence_state)) {
|
|
tool = MT_TOOL_PALM;
|
|
if (!active && mt &&
|
|
input_mt_is_active(&mt->slots[slotnum])) {
|
|
/*
|
|
* The non-confidence was reported for
|
|
* previously valid contact that is also no
|
|
* longer valid. We can't simply report
|
|
* lift-off as userspace will not be aware
|
|
* of non-confidence, so we need to split
|
|
* it into 2 events: active MT_TOOL_PALM
|
|
* and a separate liftoff.
|
|
*/
|
|
active = true;
|
|
set_bit(slotnum, app->pending_palm_slots);
|
|
}
|
|
}
|
|
|
|
input_mt_slot(input, slotnum);
|
|
input_mt_report_slot_state(input, tool, active);
|
|
if (active) {
|
|
/* this finger is in proximity of the sensor */
|
|
int wide = (*slot->w > *slot->h);
|
|
int major = max(*slot->w, *slot->h);
|
|
int minor = min(*slot->w, *slot->h);
|
|
int orientation = wide;
|
|
int max_azimuth;
|
|
int azimuth;
|
|
|
|
if (slot->a != DEFAULT_ZERO) {
|
|
/*
|
|
* Azimuth is counter-clockwise and ranges from [0, MAX)
|
|
* (a full revolution). Convert it to clockwise ranging
|
|
* [-MAX/2, MAX/2].
|
|
*
|
|
* Note that ABS_MT_ORIENTATION require us to report
|
|
* the limit of [-MAX/4, MAX/4], but the value can go
|
|
* out of range to [-MAX/2, MAX/2] to report an upside
|
|
* down ellipsis.
|
|
*/
|
|
azimuth = *slot->a;
|
|
max_azimuth = input_abs_get_max(input,
|
|
ABS_MT_ORIENTATION);
|
|
if (azimuth > max_azimuth * 2)
|
|
azimuth -= max_azimuth * 4;
|
|
orientation = -azimuth;
|
|
}
|
|
|
|
if (quirks & MT_QUIRK_TOUCH_SIZE_SCALING) {
|
|
/*
|
|
* divided by two to match visual scale of touch
|
|
* for devices with this quirk
|
|
*/
|
|
major = major >> 1;
|
|
minor = minor >> 1;
|
|
}
|
|
|
|
input_event(input, EV_ABS, ABS_MT_POSITION_X, *slot->x);
|
|
input_event(input, EV_ABS, ABS_MT_POSITION_Y, *slot->y);
|
|
input_event(input, EV_ABS, ABS_MT_TOOL_X, *slot->cx);
|
|
input_event(input, EV_ABS, ABS_MT_TOOL_Y, *slot->cy);
|
|
input_event(input, EV_ABS, ABS_MT_DISTANCE, !*slot->tip_state);
|
|
input_event(input, EV_ABS, ABS_MT_ORIENTATION, orientation);
|
|
input_event(input, EV_ABS, ABS_MT_PRESSURE, *slot->p);
|
|
input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
|
|
input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
|
|
|
|
set_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mt_process_mt_event(struct hid_device *hid,
|
|
struct mt_application *app,
|
|
struct hid_field *field,
|
|
struct hid_usage *usage,
|
|
__s32 value,
|
|
bool first_packet)
|
|
{
|
|
__s32 quirks = app->quirks;
|
|
struct input_dev *input = field->hidinput->input;
|
|
|
|
if (!usage->type || !(hid->claimed & HID_CLAIMED_INPUT))
|
|
return;
|
|
|
|
if (quirks & MT_QUIRK_WIN8_PTP_BUTTONS) {
|
|
|
|
/*
|
|
* For Win8 PTP touchpads we should only look at
|
|
* non finger/touch events in the first_packet of a
|
|
* (possible) multi-packet frame.
|
|
*/
|
|
if (!first_packet)
|
|
return;
|
|
|
|
/*
|
|
* For Win8 PTP touchpads we map both the clickpad click
|
|
* and any "external" left buttons to BTN_LEFT if a
|
|
* device claims to have both we need to report 1 for
|
|
* BTN_LEFT if either is pressed, so we or all values
|
|
* together and report the result in mt_sync_frame().
|
|
*/
|
|
if (usage->type == EV_KEY && usage->code == BTN_LEFT) {
|
|
app->left_button_state |= value;
|
|
return;
|
|
}
|
|
}
|
|
|
|
input_event(input, usage->type, usage->code, value);
|
|
}
|
|
|
|
static void mt_touch_report(struct hid_device *hid,
|
|
struct mt_report_data *rdata)
|
|
{
|
|
struct mt_device *td = hid_get_drvdata(hid);
|
|
struct hid_report *report = rdata->report;
|
|
struct mt_application *app = rdata->application;
|
|
struct hid_field *field;
|
|
struct input_dev *input;
|
|
struct mt_usages *slot;
|
|
bool first_packet;
|
|
unsigned count;
|
|
int r, n;
|
|
int scantime = 0;
|
|
int contact_count = -1;
|
|
|
|
/* sticky fingers release in progress, abort */
|
|
if (test_and_set_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
|
|
return;
|
|
|
|
scantime = *app->scantime;
|
|
app->timestamp = mt_compute_timestamp(app, scantime);
|
|
if (app->raw_cc != DEFAULT_ZERO)
|
|
contact_count = *app->raw_cc;
|
|
|
|
/*
|
|
* Includes multi-packet support where subsequent
|
|
* packets are sent with zero contactcount.
|
|
*/
|
|
if (contact_count >= 0) {
|
|
/*
|
|
* For Win8 PTPs the first packet (td->num_received == 0) may
|
|
* have a contactcount of 0 if there only is a button event.
|
|
* We double check that this is not a continuation packet
|
|
* of a possible multi-packet frame be checking that the
|
|
* timestamp has changed.
|
|
*/
|
|
if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) &&
|
|
app->num_received == 0 &&
|
|
app->prev_scantime != scantime)
|
|
app->num_expected = contact_count;
|
|
/* A non 0 contact count always indicates a first packet */
|
|
else if (contact_count)
|
|
app->num_expected = contact_count;
|
|
}
|
|
app->prev_scantime = scantime;
|
|
|
|
first_packet = app->num_received == 0;
|
|
|
|
input = report->field[0]->hidinput->input;
|
|
|
|
list_for_each_entry(slot, &app->mt_usages, list) {
|
|
if (!mt_process_slot(td, input, app, slot))
|
|
app->num_received++;
|
|
}
|
|
|
|
for (r = 0; r < report->maxfield; r++) {
|
|
field = report->field[r];
|
|
count = field->report_count;
|
|
|
|
if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
|
|
continue;
|
|
|
|
for (n = 0; n < count; n++)
|
|
mt_process_mt_event(hid, app, field,
|
|
&field->usage[n], field->value[n],
|
|
first_packet);
|
|
}
|
|
|
|
if (app->num_received >= app->num_expected)
|
|
mt_sync_frame(td, app, input);
|
|
|
|
/*
|
|
* Windows 8 specs says 2 things:
|
|
* - once a contact has been reported, it has to be reported in each
|
|
* subsequent report
|
|
* - the report rate when fingers are present has to be at least
|
|
* the refresh rate of the screen, 60 or 120 Hz
|
|
*
|
|
* I interprete this that the specification forces a report rate of
|
|
* at least 60 Hz for a touchscreen to be certified.
|
|
* Which means that if we do not get a report whithin 16 ms, either
|
|
* something wrong happens, either the touchscreen forgets to send
|
|
* a release. Taking a reasonable margin allows to remove issues
|
|
* with USB communication or the load of the machine.
|
|
*
|
|
* Given that Win 8 devices are forced to send a release, this will
|
|
* only affect laggish machines and the ones that have a firmware
|
|
* defect.
|
|
*/
|
|
if (app->quirks & MT_QUIRK_STICKY_FINGERS) {
|
|
if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags))
|
|
mod_timer(&td->release_timer,
|
|
jiffies + msecs_to_jiffies(100));
|
|
else
|
|
del_timer(&td->release_timer);
|
|
}
|
|
|
|
clear_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
|
|
}
|
|
|
|
static int mt_touch_input_configured(struct hid_device *hdev,
|
|
struct hid_input *hi,
|
|
struct mt_application *app)
|
|
{
|
|
struct mt_device *td = hid_get_drvdata(hdev);
|
|
struct mt_class *cls = &td->mtclass;
|
|
struct input_dev *input = hi->input;
|
|
int ret;
|
|
|
|
if (!td->maxcontacts)
|
|
td->maxcontacts = MT_DEFAULT_MAXCONTACT;
|
|
|
|
mt_post_parse(td, app);
|
|
if (td->serial_maybe)
|
|
mt_post_parse_default_settings(td, app);
|
|
|
|
if (cls->is_indirect)
|
|
app->mt_flags |= INPUT_MT_POINTER;
|
|
|
|
if (app->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP)
|
|
app->mt_flags |= INPUT_MT_DROP_UNUSED;
|
|
|
|
/* check for clickpads */
|
|
if ((app->mt_flags & INPUT_MT_POINTER) &&
|
|
(app->buttons_count == 1))
|
|
td->is_buttonpad = true;
|
|
|
|
if (td->is_buttonpad)
|
|
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
|
|
|
|
app->pending_palm_slots = devm_kcalloc(&hi->input->dev,
|
|
BITS_TO_LONGS(td->maxcontacts),
|
|
sizeof(long),
|
|
GFP_KERNEL);
|
|
if (!app->pending_palm_slots)
|
|
return -ENOMEM;
|
|
|
|
ret = input_mt_init_slots(input, td->maxcontacts, app->mt_flags);
|
|
if (ret)
|
|
return ret;
|
|
|
|
app->mt_flags = 0;
|
|
return 0;
|
|
}
|
|
|
|
#define mt_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \
|
|
max, EV_KEY, (c))
|
|
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_application *application;
|
|
struct mt_report_data *rdata;
|
|
|
|
rdata = mt_find_report_data(td, field->report);
|
|
if (!rdata) {
|
|
hid_err(hdev, "failed to allocate data for report\n");
|
|
return 0;
|
|
}
|
|
|
|
application = rdata->application;
|
|
|
|
/*
|
|
* If mtclass.export_all_inputs is not set, only map fields from
|
|
* TouchScreen or TouchPad collections. We need to ignore fields
|
|
* that belong to other collections such as Mouse that might have
|
|
* the same GenericDesktop usages.
|
|
*/
|
|
if (!td->mtclass.export_all_inputs &&
|
|
field->application != HID_DG_TOUCHSCREEN &&
|
|
field->application != HID_DG_PEN &&
|
|
field->application != HID_DG_TOUCHPAD &&
|
|
field->application != HID_GD_KEYBOARD &&
|
|
field->application != HID_GD_SYSTEM_CONTROL &&
|
|
field->application != HID_CP_CONSUMER_CONTROL &&
|
|
field->application != HID_GD_WIRELESS_RADIO_CTLS &&
|
|
field->application != HID_GD_SYSTEM_MULTIAXIS &&
|
|
!(field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS &&
|
|
application->quirks & MT_QUIRK_ASUS_CUSTOM_UP))
|
|
return -1;
|
|
|
|
/*
|
|
* Some Asus keyboard+touchpad devices have the hotkeys defined in the
|
|
* touchpad report descriptor. We need to treat these as an array to
|
|
* map usages to input keys.
|
|
*/
|
|
if (field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS &&
|
|
application->quirks & MT_QUIRK_ASUS_CUSTOM_UP &&
|
|
(usage->hid & HID_USAGE_PAGE) == HID_UP_CUSTOM) {
|
|
set_bit(EV_REP, hi->input->evbit);
|
|
if (field->flags & HID_MAIN_ITEM_VARIABLE)
|
|
field->flags &= ~HID_MAIN_ITEM_VARIABLE;
|
|
switch (usage->hid & HID_USAGE) {
|
|
case 0x10: mt_map_key_clear(KEY_BRIGHTNESSDOWN); break;
|
|
case 0x20: mt_map_key_clear(KEY_BRIGHTNESSUP); break;
|
|
case 0x35: mt_map_key_clear(KEY_DISPLAY_OFF); break;
|
|
case 0x6b: mt_map_key_clear(KEY_F21); break;
|
|
case 0x6c: mt_map_key_clear(KEY_SLEEP); break;
|
|
default:
|
|
return -1;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
if (rdata->is_mt_collection)
|
|
return mt_touch_input_mapping(hdev, hi, field, usage, bit, max,
|
|
application);
|
|
|
|
/*
|
|
* some egalax touchscreens have "application == DG_TOUCHSCREEN"
|
|
* for the stylus. Overwrite the hid_input application
|
|
*/
|
|
if (field->physical == HID_DG_STYLUS)
|
|
hi->application = HID_DG_STYLUS;
|
|
|
|
/* let hid-core decide for the others */
|
|
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)
|
|
{
|
|
struct mt_device *td = hid_get_drvdata(hdev);
|
|
struct mt_report_data *rdata;
|
|
|
|
rdata = mt_find_report_data(td, field->report);
|
|
if (rdata && rdata->is_mt_collection) {
|
|
/* We own these mappings, tell hid-input to ignore them */
|
|
return -1;
|
|
}
|
|
|
|
/* let hid-core decide for the others */
|
|
return 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);
|
|
struct mt_report_data *rdata;
|
|
|
|
rdata = mt_find_report_data(td, field->report);
|
|
if (rdata && rdata->is_mt_collection)
|
|
return mt_touch_event(hid, field, usage, value);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mt_report(struct hid_device *hid, struct hid_report *report)
|
|
{
|
|
struct mt_device *td = hid_get_drvdata(hid);
|
|
struct hid_field *field = report->field[0];
|
|
struct mt_report_data *rdata;
|
|
|
|
if (!(hid->claimed & HID_CLAIMED_INPUT))
|
|
return;
|
|
|
|
rdata = mt_find_report_data(td, report);
|
|
if (rdata && rdata->is_mt_collection)
|
|
return mt_touch_report(hid, rdata);
|
|
|
|
if (field && field->hidinput && field->hidinput->input)
|
|
input_sync(field->hidinput->input);
|
|
}
|
|
|
|
static bool mt_need_to_apply_feature(struct hid_device *hdev,
|
|
struct hid_field *field,
|
|
struct hid_usage *usage,
|
|
enum latency_mode latency,
|
|
bool surface_switch,
|
|
bool button_switch,
|
|
bool *inputmode_found)
|
|
{
|
|
struct mt_device *td = hid_get_drvdata(hdev);
|
|
struct mt_class *cls = &td->mtclass;
|
|
struct hid_report *report = field->report;
|
|
unsigned int index = usage->usage_index;
|
|
char *buf;
|
|
u32 report_len;
|
|
int max;
|
|
|
|
switch (usage->hid) {
|
|
case HID_DG_INPUTMODE:
|
|
/*
|
|
* Some elan panels wrongly declare 2 input mode features,
|
|
* and silently ignore when we set the value in the second
|
|
* field. Skip the second feature and hope for the best.
|
|
*/
|
|
if (*inputmode_found)
|
|
return false;
|
|
|
|
if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) {
|
|
report_len = hid_report_len(report);
|
|
buf = hid_alloc_report_buf(report, GFP_KERNEL);
|
|
if (!buf) {
|
|
hid_err(hdev,
|
|
"failed to allocate buffer for report\n");
|
|
return false;
|
|
}
|
|
hid_hw_raw_request(hdev, report->id, buf, report_len,
|
|
HID_FEATURE_REPORT,
|
|
HID_REQ_GET_REPORT);
|
|
kfree(buf);
|
|
}
|
|
|
|
field->value[index] = td->inputmode_value;
|
|
*inputmode_found = true;
|
|
return true;
|
|
|
|
case HID_DG_CONTACTMAX:
|
|
if (cls->maxcontacts) {
|
|
max = min_t(int, field->logical_maximum,
|
|
cls->maxcontacts);
|
|
if (field->value[index] != max) {
|
|
field->value[index] = max;
|
|
return true;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case HID_DG_LATENCYMODE:
|
|
field->value[index] = latency;
|
|
return true;
|
|
|
|
case HID_DG_SURFACESWITCH:
|
|
field->value[index] = surface_switch;
|
|
return true;
|
|
|
|
case HID_DG_BUTTONSWITCH:
|
|
field->value[index] = button_switch;
|
|
return true;
|
|
}
|
|
|
|
return false; /* no need to update the report */
|
|
}
|
|
|
|
static void mt_set_modes(struct hid_device *hdev, enum latency_mode latency,
|
|
bool surface_switch, bool button_switch)
|
|
{
|
|
struct hid_report_enum *rep_enum;
|
|
struct hid_report *rep;
|
|
struct hid_usage *usage;
|
|
int i, j;
|
|
bool update_report;
|
|
bool inputmode_found = false;
|
|
|
|
rep_enum = &hdev->report_enum[HID_FEATURE_REPORT];
|
|
list_for_each_entry(rep, &rep_enum->report_list, list) {
|
|
update_report = false;
|
|
|
|
for (i = 0; i < rep->maxfield; i++) {
|
|
/* Ignore if report count is out of bounds. */
|
|
if (rep->field[i]->report_count < 1)
|
|
continue;
|
|
|
|
for (j = 0; j < rep->field[i]->maxusage; j++) {
|
|
usage = &rep->field[i]->usage[j];
|
|
|
|
if (mt_need_to_apply_feature(hdev,
|
|
rep->field[i],
|
|
usage,
|
|
latency,
|
|
surface_switch,
|
|
button_switch,
|
|
&inputmode_found))
|
|
update_report = true;
|
|
}
|
|
}
|
|
|
|
if (update_report)
|
|
hid_hw_request(hdev, rep, HID_REQ_SET_REPORT);
|
|
}
|
|
}
|
|
|
|
static void mt_post_parse_default_settings(struct mt_device *td,
|
|
struct mt_application *app)
|
|
{
|
|
__s32 quirks = app->quirks;
|
|
|
|
/* unknown serial device needs special quirks */
|
|
if (list_is_singular(&app->mt_usages)) {
|
|
quirks |= MT_QUIRK_ALWAYS_VALID;
|
|
quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP;
|
|
quirks &= ~MT_QUIRK_VALID_IS_INRANGE;
|
|
quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE;
|
|
quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
|
|
}
|
|
|
|
app->quirks = quirks;
|
|
}
|
|
|
|
static void mt_post_parse(struct mt_device *td, struct mt_application *app)
|
|
{
|
|
if (!app->have_contact_count)
|
|
app->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE;
|
|
}
|
|
|
|
static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi)
|
|
{
|
|
struct mt_device *td = hid_get_drvdata(hdev);
|
|
char *name;
|
|
const char *suffix = NULL;
|
|
struct mt_report_data *rdata;
|
|
struct mt_application *mt_application = NULL;
|
|
struct hid_report *report;
|
|
int ret;
|
|
|
|
list_for_each_entry(report, &hi->reports, hidinput_list) {
|
|
rdata = mt_find_report_data(td, report);
|
|
if (!rdata) {
|
|
hid_err(hdev, "failed to allocate data for report\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
mt_application = rdata->application;
|
|
|
|
if (rdata->is_mt_collection) {
|
|
ret = mt_touch_input_configured(hdev, hi,
|
|
mt_application);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
switch (hi->application) {
|
|
case HID_GD_KEYBOARD:
|
|
case HID_GD_KEYPAD:
|
|
case HID_GD_MOUSE:
|
|
case HID_DG_TOUCHPAD:
|
|
case HID_GD_SYSTEM_CONTROL:
|
|
case HID_CP_CONSUMER_CONTROL:
|
|
case HID_GD_WIRELESS_RADIO_CTLS:
|
|
case HID_GD_SYSTEM_MULTIAXIS:
|
|
/* already handled by hid core */
|
|
break;
|
|
case HID_DG_TOUCHSCREEN:
|
|
/* we do not set suffix = "Touchscreen" */
|
|
hi->input->name = hdev->name;
|
|
break;
|
|
case HID_DG_STYLUS:
|
|
/* force BTN_STYLUS to allow tablet matching in udev */
|
|
__set_bit(BTN_STYLUS, hi->input->keybit);
|
|
break;
|
|
case HID_VD_ASUS_CUSTOM_MEDIA_KEYS:
|
|
suffix = "Custom Media Keys";
|
|
break;
|
|
case HID_DG_PEN:
|
|
suffix = "Stylus";
|
|
break;
|
|
default:
|
|
suffix = "UNKNOWN";
|
|
break;
|
|
}
|
|
|
|
if (suffix) {
|
|
name = devm_kzalloc(&hi->input->dev,
|
|
strlen(hdev->name) + strlen(suffix) + 2,
|
|
GFP_KERNEL);
|
|
if (name) {
|
|
sprintf(name, "%s %s", hdev->name, suffix);
|
|
hi->input->name = name;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mt_fix_const_field(struct hid_field *field, unsigned int usage)
|
|
{
|
|
if (field->usage[0].hid != usage ||
|
|
!(field->flags & HID_MAIN_ITEM_CONSTANT))
|
|
return;
|
|
|
|
field->flags &= ~HID_MAIN_ITEM_CONSTANT;
|
|
field->flags |= HID_MAIN_ITEM_VARIABLE;
|
|
}
|
|
|
|
static void mt_fix_const_fields(struct hid_device *hdev, unsigned int usage)
|
|
{
|
|
struct hid_report *report;
|
|
int i;
|
|
|
|
list_for_each_entry(report,
|
|
&hdev->report_enum[HID_INPUT_REPORT].report_list,
|
|
list) {
|
|
|
|
if (!report->maxfield)
|
|
continue;
|
|
|
|
for (i = 0; i < report->maxfield; i++)
|
|
if (report->field[i]->maxusage >= 1)
|
|
mt_fix_const_field(report->field[i], usage);
|
|
}
|
|
}
|
|
|
|
static void mt_release_contacts(struct hid_device *hid)
|
|
{
|
|
struct hid_input *hidinput;
|
|
struct mt_application *application;
|
|
struct mt_device *td = hid_get_drvdata(hid);
|
|
|
|
list_for_each_entry(hidinput, &hid->inputs, list) {
|
|
struct input_dev *input_dev = hidinput->input;
|
|
struct input_mt *mt = input_dev->mt;
|
|
int i;
|
|
|
|
if (mt) {
|
|
for (i = 0; i < mt->num_slots; i++) {
|
|
input_mt_slot(input_dev, i);
|
|
input_mt_report_slot_inactive(input_dev);
|
|
}
|
|
input_mt_sync_frame(input_dev);
|
|
input_sync(input_dev);
|
|
}
|
|
}
|
|
|
|
list_for_each_entry(application, &td->applications, list) {
|
|
application->num_received = 0;
|
|
}
|
|
}
|
|
|
|
static void mt_expired_timeout(struct timer_list *t)
|
|
{
|
|
struct mt_device *td = from_timer(td, t, release_timer);
|
|
struct hid_device *hdev = td->hdev;
|
|
|
|
/*
|
|
* An input report came in just before we release the sticky fingers,
|
|
* it will take care of the sticky fingers.
|
|
*/
|
|
if (test_and_set_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags))
|
|
return;
|
|
if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags))
|
|
mt_release_contacts(hdev);
|
|
clear_bit(MT_IO_FLAGS_RUNNING, &td->mt_io_flags);
|
|
}
|
|
|
|
static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
|
|
{
|
|
int ret, i;
|
|
struct mt_device *td;
|
|
const 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;
|
|
}
|
|
}
|
|
|
|
td = devm_kzalloc(&hdev->dev, sizeof(struct mt_device), GFP_KERNEL);
|
|
if (!td) {
|
|
dev_err(&hdev->dev, "cannot allocate multitouch data\n");
|
|
return -ENOMEM;
|
|
}
|
|
td->hdev = hdev;
|
|
td->mtclass = *mtclass;
|
|
td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN;
|
|
hid_set_drvdata(hdev, td);
|
|
|
|
INIT_LIST_HEAD(&td->applications);
|
|
INIT_LIST_HEAD(&td->reports);
|
|
|
|
if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID)
|
|
td->serial_maybe = true;
|
|
|
|
/* This allows the driver to correctly support devices
|
|
* that emit events over several HID messages.
|
|
*/
|
|
hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
|
|
|
|
/*
|
|
* This allows the driver to handle different input sensors
|
|
* that emits events through different applications on the same HID
|
|
* device.
|
|
*/
|
|
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
|
|
|
|
if (id->group != HID_GROUP_MULTITOUCH_WIN_8)
|
|
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
|
|
|
|
if (mtclass->quirks & MT_QUIRK_FORCE_MULTI_INPUT) {
|
|
hdev->quirks &= ~HID_QUIRK_INPUT_PER_APP;
|
|
hdev->quirks |= HID_QUIRK_MULTI_INPUT;
|
|
}
|
|
|
|
timer_setup(&td->release_timer, mt_expired_timeout, 0);
|
|
|
|
ret = hid_parse(hdev);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
if (mtclass->quirks & MT_QUIRK_FIX_CONST_CONTACT_ID)
|
|
mt_fix_const_fields(hdev, HID_DG_CONTACTID);
|
|
|
|
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
|
|
if (ret)
|
|
dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n",
|
|
hdev->name);
|
|
|
|
mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int mt_suspend(struct hid_device *hdev, pm_message_t state)
|
|
{
|
|
/* High latency is desirable for power savings during S3/S0ix */
|
|
mt_set_modes(hdev, HID_LATENCY_HIGH, true, true);
|
|
return 0;
|
|
}
|
|
|
|
static int mt_reset_resume(struct hid_device *hdev)
|
|
{
|
|
mt_release_contacts(hdev);
|
|
mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
|
|
return 0;
|
|
}
|
|
|
|
static int mt_resume(struct hid_device *hdev)
|
|
{
|
|
/* Some Elan legacy devices require SET_IDLE to be set on resume.
|
|
* It should be safe to send it to other devices too.
|
|
* Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
|
|
|
|
hid_hw_idle(hdev, 0, 0, HID_REQ_SET_IDLE);
|
|
|
|
mt_set_modes(hdev, HID_LATENCY_NORMAL, true, true);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static void mt_remove(struct hid_device *hdev)
|
|
{
|
|
struct mt_device *td = hid_get_drvdata(hdev);
|
|
|
|
del_timer_sync(&td->release_timer);
|
|
|
|
sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
|
|
hid_hw_stop(hdev);
|
|
}
|
|
|
|
/*
|
|
* This list contains only:
|
|
* - VID/PID of products not working with the default multitouch handling
|
|
* - 2 generic rules.
|
|
* So there is no point in adding here any device with MT_CLS_DEFAULT.
|
|
*/
|
|
static const struct hid_device_id mt_devices[] = {
|
|
|
|
/* 3M panels */
|
|
{ .driver_data = MT_CLS_3M,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_3M,
|
|
USB_DEVICE_ID_3M1968) },
|
|
{ .driver_data = MT_CLS_3M,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_3M,
|
|
USB_DEVICE_ID_3M2256) },
|
|
{ .driver_data = MT_CLS_3M,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_3M,
|
|
USB_DEVICE_ID_3M3266) },
|
|
|
|
/* Anton devices */
|
|
{ .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
|
|
USB_DEVICE_ID_ANTON_TOUCH_PAD) },
|
|
|
|
/* Asus T304UA */
|
|
{ .driver_data = MT_CLS_ASUS,
|
|
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
|
|
USB_VENDOR_ID_ASUSTEK,
|
|
USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD) },
|
|
|
|
/* Atmel panels */
|
|
{ .driver_data = MT_CLS_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
|
|
USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) },
|
|
|
|
/* Baanto multitouch devices */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_BAANTO,
|
|
USB_DEVICE_ID_BAANTO_MT_190W2) },
|
|
|
|
/* Cando panels */
|
|
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
|
|
USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
|
|
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
|
|
USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
|
|
|
|
/* Chunghwa Telecom touch panels */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT,
|
|
USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
|
|
|
|
/* CJTouch panels */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
|
|
USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH,
|
|
USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) },
|
|
|
|
/* CVTouch panels */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
|
|
USB_DEVICE_ID_CVTOUCH_SCREEN) },
|
|
|
|
/* eGalax devices (resistive) */
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
|
|
|
|
/* eGalax devices (capacitive) */
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) },
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) },
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) },
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) },
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) },
|
|
{ .driver_data = MT_CLS_EGALAX_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
|
|
{ .driver_data = MT_CLS_EGALAX,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
|
|
USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_C002) },
|
|
|
|
/* Elan devices */
|
|
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
|
|
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
|
|
USB_VENDOR_ID_ELAN, 0x313a) },
|
|
|
|
/* Elitegroup panel */
|
|
{ .driver_data = MT_CLS_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP,
|
|
USB_DEVICE_ID_ELITEGROUP_05D8) },
|
|
|
|
/* Flatfrog Panels */
|
|
{ .driver_data = MT_CLS_FLATFROG,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG,
|
|
USB_DEVICE_ID_MULTITOUCH_3200) },
|
|
|
|
/* FocalTech Panels */
|
|
{ .driver_data = MT_CLS_SERIAL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL,
|
|
USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) },
|
|
|
|
/* GeneralTouch panel */
|
|
{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
|
|
USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
|
|
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
|
|
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
|
|
{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
|
|
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
|
|
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
|
|
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
|
|
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
|
|
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
|
|
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
|
|
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
|
|
{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
|
|
USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
|
|
|
|
/* Gametel game controller */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL,
|
|
USB_DEVICE_ID_GAMETEL_MT_MODE) },
|
|
|
|
/* GoodTouch panels */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
|
|
USB_DEVICE_ID_GOODTOUCH_000f) },
|
|
|
|
/* Hanvon panels */
|
|
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
|
|
USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
|
|
|
|
/* Ilitek dual touch panel */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_ILITEK,
|
|
USB_DEVICE_ID_ILITEK_MULTITOUCH) },
|
|
|
|
/* LG Melfas panel */
|
|
{ .driver_data = MT_CLS_LG,
|
|
HID_USB_DEVICE(USB_VENDOR_ID_LG,
|
|
USB_DEVICE_ID_LG_MELFAS_MT) },
|
|
{ .driver_data = MT_CLS_LG,
|
|
HID_DEVICE(BUS_I2C, HID_GROUP_GENERIC,
|
|
USB_VENDOR_ID_LG, I2C_DEVICE_ID_LG_7010) },
|
|
|
|
/* Lenovo X1 TAB Gen 2 */
|
|
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
|
|
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
|
|
USB_VENDOR_ID_LENOVO,
|
|
USB_DEVICE_ID_LENOVO_X1_TAB) },
|
|
|
|
/* Lenovo X1 TAB Gen 3 */
|
|
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
|
|
HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
|
|
USB_VENDOR_ID_LENOVO,
|
|
USB_DEVICE_ID_LENOVO_X1_TAB3) },
|
|
|
|
/* MosArt panels */
|
|
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
|
|
USB_DEVICE_ID_ASUS_T91MT)},
|
|
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_ASUS,
|
|
USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
|
|
{ .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_TURBOX,
|
|
USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
|
|
|
|
/* Novatek Panel */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK,
|
|
USB_DEVICE_ID_NOVATEK_PCT) },
|
|
|
|
/* Ntrig Panel */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
|
|
USB_VENDOR_ID_NTRIG, 0x1b05) },
|
|
|
|
/* Panasonic panels */
|
|
{ .driver_data = MT_CLS_PANASONIC,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
|
|
USB_DEVICE_ID_PANABOARD_UBT780) },
|
|
{ .driver_data = MT_CLS_PANASONIC,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC,
|
|
USB_DEVICE_ID_PANABOARD_UBT880) },
|
|
|
|
/* PixArt optical touch screen */
|
|
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
|
|
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
|
|
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
|
|
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
|
|
{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_PIXART,
|
|
USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
|
|
|
|
/* PixCir-based panels */
|
|
{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_CANDO,
|
|
USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
|
|
|
|
/* Quanta-based panels */
|
|
{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
|
|
USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
|
|
|
|
/* Razer touchpads */
|
|
{ .driver_data = MT_CLS_RAZER_BLADE_STEALTH,
|
|
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
|
|
USB_VENDOR_ID_SYNAPTICS, 0x8323) },
|
|
|
|
/* Smart Tech panels */
|
|
{ .driver_data = MT_CLS_SMART_TECH,
|
|
MT_USB_DEVICE(0x0b8c, 0x0092)},
|
|
|
|
/* Stantum panels */
|
|
{ .driver_data = MT_CLS_CONFIDENCE,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM,
|
|
USB_DEVICE_ID_MTP_STM)},
|
|
|
|
/* Synaptics devices */
|
|
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
|
|
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
|
|
USB_VENDOR_ID_SYNAPTICS, 0xce08) },
|
|
|
|
{ .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
|
|
HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
|
|
USB_VENDOR_ID_SYNAPTICS, 0xce09) },
|
|
|
|
/* TopSeed panels */
|
|
{ .driver_data = MT_CLS_TOPSEED,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2,
|
|
USB_DEVICE_ID_TOPSEED2_PERIPAD_701) },
|
|
|
|
/* Touch International panels */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL,
|
|
USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
|
|
|
|
/* Unitec panels */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
|
|
USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
|
|
USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
|
|
|
|
/* VTL panels */
|
|
{ .driver_data = MT_CLS_VTL,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_VTL,
|
|
USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) },
|
|
|
|
/* Wistron panels */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
|
|
USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
|
|
|
|
/* XAT */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XAT,
|
|
USB_DEVICE_ID_XAT_CSR) },
|
|
|
|
/* Xiroku */
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_SPX) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_MPX) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_CSR) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_SPX1) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_MPX1) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_CSR1) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_SPX2) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_MPX2) },
|
|
{ .driver_data = MT_CLS_NSMU,
|
|
MT_USB_DEVICE(USB_VENDOR_ID_XIROKU,
|
|
USB_DEVICE_ID_XIROKU_CSR2) },
|
|
|
|
/* Google MT devices */
|
|
{ .driver_data = MT_CLS_GOOGLE,
|
|
HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE,
|
|
USB_DEVICE_ID_GOOGLE_TOUCH_ROSE) },
|
|
|
|
/* Generic MT device */
|
|
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) },
|
|
|
|
/* Generic Win 8 certified MT device */
|
|
{ .driver_data = MT_CLS_WIN_8,
|
|
HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8,
|
|
HID_ANY_ID, HID_ANY_ID) },
|
|
{ }
|
|
};
|
|
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,
|
|
.input_configured = mt_input_configured,
|
|
.feature_mapping = mt_feature_mapping,
|
|
.usage_table = mt_grabbed_usages,
|
|
.event = mt_event,
|
|
.report = mt_report,
|
|
#ifdef CONFIG_PM
|
|
.suspend = mt_suspend,
|
|
.reset_resume = mt_reset_resume,
|
|
.resume = mt_resume,
|
|
#endif
|
|
};
|
|
module_hid_driver(mt_driver);
|