| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Benjamin Tissoires | 6514 | 74.31% | 96 | 56.80% |
| Henrik Rydberg | 281 | 3.21% | 6 | 3.55% |
| Dmitry Torokhov | 258 | 2.94% | 5 | 2.96% |
| João Paulo Rechi Vita | 186 | 2.12% | 2 | 1.18% |
| Mika Westerberg | 147 | 1.68% | 1 | 0.59% |
| Wei-Ning Huang | 119 | 1.36% | 2 | 1.18% |
| Mathieu Magnaudet | 112 | 1.28% | 2 | 1.18% |
| Masatoshi Hoshikawa | 109 | 1.24% | 1 | 0.59% |
| Hans de Goede | 101 | 1.15% | 5 | 2.96% |
| Masaki Ota | 74 | 0.84% | 1 | 0.59% |
| Luosong | 72 | 0.82% | 1 | 0.59% |
| Seth Forshee | 66 | 0.75% | 1 | 0.59% |
| Jiri Kosina | 59 | 0.67% | 8 | 4.73% |
| Aaron Tian | 54 | 0.62% | 1 | 0.59% |
| Xianhan Yu | 50 | 0.57% | 1 | 0.59% |
| Denis Kovalev | 41 | 0.47% | 1 | 0.59% |
| Kai-Heng Feng | 37 | 0.42% | 2 | 1.18% |
| Nicolas Boichat | 37 | 0.42% | 1 | 0.59% |
| Richard Nauber | 36 | 0.41% | 1 | 0.59% |
| Allen Hung | 35 | 0.40% | 1 | 0.59% |
| Austin Zhang | 33 | 0.38% | 2 | 1.18% |
| Kees Cook | 32 | 0.37% | 1 | 0.59% |
| Yang Bo | 29 | 0.33% | 1 | 0.59% |
| Scott Liu | 28 | 0.32% | 1 | 0.59% |
| Andy Shevchenko | 27 | 0.31% | 1 | 0.59% |
| Andrew Duggan | 25 | 0.29% | 1 | 0.59% |
| Stephane Chatty | 20 | 0.23% | 1 | 0.59% |
| Mikael Wikström | 19 | 0.22% | 1 | 0.59% |
| Pavel Tatashin | 19 | 0.22% | 1 | 0.59% |
| Nicholas Krause | 18 | 0.21% | 1 | 0.59% |
| HungNien Chen | 16 | 0.18% | 1 | 0.59% |
| KaiChung Cheng | 15 | 0.17% | 1 | 0.59% |
| Tomas Sokorai | 15 | 0.17% | 1 | 0.59% |
| ice chien | 13 | 0.15% | 1 | 0.59% |
| Thierry Reding | 12 | 0.14% | 1 | 0.59% |
| Andreas Nielsen | 11 | 0.13% | 1 | 0.59% |
| Austin Hendrix | 10 | 0.11% | 1 | 0.59% |
| Chris Bagwell | 8 | 0.09% | 1 | 0.59% |
| John Sung | 6 | 0.07% | 1 | 0.59% |
| Benson Leung | 5 | 0.06% | 1 | 0.59% |
| Aaron Ma | 3 | 0.03% | 1 | 0.59% |
| Brent Adam | 3 | 0.03% | 1 | 0.59% |
| Thomas Gleixner | 3 | 0.03% | 1 | 0.59% |
| H Hartley Sweeten | 2 | 0.02% | 1 | 0.59% |
| Geliang Tang | 2 | 0.02% | 1 | 0.59% |
| Jeff Brown | 1 | 0.01% | 1 | 0.59% |
| Alan Cox | 1 | 0.01% | 1 | 0.59% |
| Marek Vašut | 1 | 0.01% | 1 | 0.59% |
| Arvind Yadav | 1 | 0.01% | 1 | 0.59% |
| Total | 8766 | 169 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * HID driver for multitouch panels * * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com> * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France * Copyright (c) 2012-2013 Red Hat, Inc * * 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 driver is regularly tested thanks to the test suite in hid-tools[1]. * Please run these regression tests before patching this module so that * your patch won't break existing known devices. * * [1] https://gitlab.freedesktop.org/libevdev/hid-tools */ #include <linux/device.h> #include <linux/hid.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/input/mt.h> #include <linux/jiffies.h> #include <linux/string.h> #include <linux/timer.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 BIT(0) #define MT_QUIRK_SLOT_IS_CONTACTID BIT(1) #define MT_QUIRK_CYPRESS BIT(2) #define MT_QUIRK_SLOT_IS_CONTACTNUMBER BIT(3) #define MT_QUIRK_ALWAYS_VALID BIT(4) #define MT_QUIRK_VALID_IS_INRANGE BIT(5) #define MT_QUIRK_VALID_IS_CONFIDENCE BIT(6) #define MT_QUIRK_CONFIDENCE BIT(7) #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE BIT(8) #define MT_QUIRK_NO_AREA BIT(9) #define MT_QUIRK_IGNORE_DUPLICATES BIT(10) #define MT_QUIRK_HOVERING BIT(11) #define MT_QUIRK_CONTACT_CNT_ACCURATE BIT(12) #define MT_QUIRK_FORCE_GET_FEATURE BIT(13) #define MT_QUIRK_FIX_CONST_CONTACT_ID BIT(14) #define MT_QUIRK_TOUCH_SIZE_SCALING BIT(15) #define MT_QUIRK_STICKY_FINGERS BIT(16) #define MT_QUIRK_ASUS_CUSTOM_UP BIT(17) #define MT_QUIRK_WIN8_PTP_BUTTONS BIT(18) #define MT_INPUTMODE_TOUCHSCREEN 0x02 #define MT_INPUTMODE_TOUCHPAD 0x03 #define MT_BUTTONTYPE_CLICKPAD 0 enum latency_mode { HID_LATENCY_NORMAL = 0, HID_LATENCY_HIGH = 1, }; #define MT_IO_FLAGS_RUNNING 0 #define MT_IO_FLAGS_ACTIVE_SLOTS 1 #define MT_IO_FLAGS_PENDING_SLOTS 2 static const bool mtrue = true; /* default for true */ static const bool mfalse; /* default for false */ static const __s32 mzero; /* default for 0 */ #define DEFAULT_TRUE ((void *)&mtrue) #define DEFAULT_FALSE ((void *)&mfalse) #define DEFAULT_ZERO ((void *)&mzero) struct mt_usages { struct list_head list; __s32 *x, *y, *cx, *cy, *p, *w, *h, *a; __s32 *contactid; /* the device ContactID assigned to this slot */ bool *tip_state; /* is the touch valid? */ bool *inrange_state; /* is the finger in proximity of the sensor? */ bool *confidence_state; /* is the touch made by a finger? */ }; struct mt_application { struct list_head list; unsigned int application; struct list_head mt_usages; /* mt usages list */ __s32 quirks; __s32 *scantime; /* scantime reported */ __s32 scantime_logical_max; /* max value for raw scantime */ __s32 *raw_cc; /* contact count in the report */ int left_button_state; /* left button state */ unsigned int mt_flags; /* flags to pass to input-mt */ unsigned long *pending_palm_slots; /* slots where we reported palm * and need to release */ __u8 num_received; /* how many contacts we received */ __u8 num_expected; /* expected last contact index */ __u8 buttons_count; /* number of physical buttons per touchpad */ __u8 touches_by_report; /* how many touches are present in one report: * 1 means we should use a serial protocol * > 1 means hybrid (multitouch) protocol */ __s32 dev_time; /* the scan time provided by the device */ unsigned long jiffies; /* the frame's jiffies */ int timestamp; /* the timestamp to be sent */ int prev_scantime; /* scantime reported previously */ bool have_contact_count; }; 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; bool is_indirect; /* true for touchpads */ bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ }; struct mt_report_data { struct list_head list; struct hid_report *report; struct mt_application *application; bool is_mt_collection; }; struct mt_device { struct mt_class mtclass; /* our mt device class */ struct timer_list release_timer; /* to release sticky fingers */ struct hid_device *hdev; /* hid_device we're attached to */ unsigned long mt_io_flags; /* mt flags (MT_IO_FLAGS_*) */ __u8 inputmode_value; /* InputMode HID feature value */ __u8 maxcontacts; bool is_buttonpad; /* is this device a button pad? */ bool serial_maybe; /* need to check for serial protocol */ struct list_head applications; struct list_head reports; }; static void mt_post_parse_default_settings(struct mt_device *td, struct mt_application *app); static void mt_post_parse(struct mt_device *td, struct mt_application *app); /* classes of device behavior */ #define MT_CLS_DEFAULT 0x0001 #define MT_CLS_SERIAL 0x0002 #define MT_CLS_CONFIDENCE 0x0003 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 /* reserved 0x0008 */ #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 #define MT_CLS_NSMU 0x000a /* reserved 0x0010 */ /* reserved 0x0011 */ #define MT_CLS_WIN_8 0x0012 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013 #define MT_CLS_WIN_8_DUAL 0x0014 /* vendor specific classes */ #define MT_CLS_3M 0x0101 /* reserved 0x0102 */ #define MT_CLS_EGALAX 0x0103 #define MT_CLS_EGALAX_SERIAL 0x0104 #define MT_CLS_TOPSEED 0x0105 #define MT_CLS_PANASONIC 0x0106 #define MT_CLS_FLATFROG 0x0107 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 #define MT_CLS_LG 0x010a #define MT_CLS_ASUS 0x010b #define MT_CLS_VTL 0x0110 #define MT_CLS_GOOGLE 0x0111 #define MT_CLS_RAZER_BLADE_STEALTH 0x0112 #define MT_DEFAULT_MAXCONTACT 10 #define MT_MAX_MAXCONTACT 250 /* * Resync device and local timestamps after that many microseconds without * receiving data. */ #define MAX_TIMESTAMP_INTERVAL 1000000 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) /* * these device-dependent functions determine what slot corresponds * to a valid contact that was just read. */ static int cypress_compute_slot(struct mt_application *application, struct mt_usages *slot) { if (*slot->contactid != 0 || application->num_received == 0) return *slot->contactid; else return -1; } static const struct mt_class mt_classes[] = { { .name = MT_CLS_DEFAULT, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_CONTACT_CNT_ACCURATE }, { .name = MT_CLS_NSMU, .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, { .name = MT_CLS_SERIAL, .quirks = MT_QUIRK_ALWAYS_VALID}, { .name = MT_CLS_CONFIDENCE, .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, { .name = MT_CLS_CONFIDENCE_CONTACT_ID, .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | MT_QUIRK_SLOT_IS_CONTACTID }, { .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_INRANGE_CONTACTNUMBER, .quirks = MT_QUIRK_VALID_IS_INRANGE | MT_QUIRK_SLOT_IS_CONTACTNUMBER }, { .name = MT_CLS_WIN_8, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_IGNORE_DUPLICATES | MT_QUIRK_HOVERING | MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_STICKY_FINGERS | MT_QUIRK_WIN8_PTP_BUTTONS }, { .name = MT_CLS_EXPORT_ALL_INPUTS, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_CONTACT_CNT_ACCURATE, .export_all_inputs = true }, { .name = MT_CLS_WIN_8_DUAL, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_IGNORE_DUPLICATES | MT_QUIRK_HOVERING | MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_WIN8_PTP_BUTTONS, .export_all_inputs = true }, /* * vendor specific classes */ { .name = MT_CLS_3M, .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | MT_QUIRK_SLOT_IS_CONTACTID | MT_QUIRK_TOUCH_SIZE_SCALING, .sn_move = 2048, .sn_width = 128, .sn_height = 128, .maxcontacts = 60, }, { .name = MT_CLS_EGALAX, .quirks = MT_QUIRK_SLOT_IS_CONTACTID | MT_QUIRK_VALID_IS_INRANGE, .sn_move = 4096, .sn_pressure = 32, }, { .name = MT_CLS_EGALAX_SERIAL, .quirks = MT_QUIRK_SLOT_IS_CONTACTID | MT_QUIRK_ALWAYS_VALID, .sn_move = 4096, .sn_pressure = 32, }, { .name = MT_CLS_TOPSEED, .quirks = MT_QUIRK_ALWAYS_VALID, .is_indirect = true, .maxcontacts = 2, }, { .name = MT_CLS_PANASONIC, .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, .maxcontacts = 4 }, { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | MT_QUIRK_VALID_IS_INRANGE | MT_QUIRK_SLOT_IS_CONTACTID, .maxcontacts = 2 }, { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | MT_QUIRK_SLOT_IS_CONTACTID }, { .name = MT_CLS_FLATFROG, .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | MT_QUIRK_NO_AREA, .sn_move = 2048, .maxcontacts = 40, }, { .name = MT_CLS_LG, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_FIX_CONST_CONTACT_ID | MT_QUIRK_IGNORE_DUPLICATES | MT_QUIRK_HOVERING | MT_QUIRK_CONTACT_CNT_ACCURATE }, { .name = MT_CLS_ASUS, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_ASUS_CUSTOM_UP }, { .name = MT_CLS_VTL, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_FORCE_GET_FEATURE, }, { .name = MT_CLS_GOOGLE, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_SLOT_IS_CONTACTID | MT_QUIRK_HOVERING }, { .name = MT_CLS_RAZER_BLADE_STEALTH, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_IGNORE_DUPLICATES | MT_QUIRK_HOVERING | MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_WIN8_PTP_BUTTONS, }, { } }; static ssize_t mt_show_quirks(struct device *dev, struct device_attribute *attr, char *buf) { struct hid_device *hdev = to_hid_device(dev); struct mt_device *td = hid_get_drvdata(hdev); return sprintf(buf, "%u\n", td->mtclass.quirks); } static ssize_t mt_set_quirks(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct hid_device *hdev = to_hid_device(dev); struct mt_device *td = hid_get_drvdata(hdev); struct mt_application *application; unsigned long val; if (kstrtoul(buf, 0, &val)) return -EINVAL; td->mtclass.quirks = val; list_for_each_entry(application, &td->applications, list) { application->quirks = val; if (!application->have_contact_count) application->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; } return count; } static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); static struct attribute *sysfs_attrs[] = { &dev_attr_quirks.attr, NULL }; static const struct attribute_group mt_attribute_group = { .attrs = sysfs_attrs }; static void mt_get_feature(struct hid_device *hdev, struct hid_report *report) { int ret; u32 size = hid_report_len(report); u8 *buf; /* * Do not fetch the feature report if the device has been explicitly * marked as non-capable. */ if (hdev->quirks & HID_QUIRK_NO_INIT_REPORTS) return; buf = hid_alloc_report_buf(report, GFP_KERNEL); if (!buf) return; ret = hid_hw_raw_request(hdev, report->id, buf, size, HID_FEATURE_REPORT, HID_REQ_GET_REPORT); 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, unsigned int 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; list_add_tail(&mt_application->list, &td->applications); return mt_application; } static struct mt_application *mt_find_application(struct mt_device *td, unsigned int application) { struct mt_application *tmp, *mt_application = NULL; list_for_each_entry(tmp, &td->applications, list) { if (application == tmp->application) { mt_application = tmp; break; } } if (!mt_application) mt_application = mt_allocate_application(td, application); 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->application); 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_DUAL) && (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); 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_state(input, MT_TOOL_PALM, false); 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 && 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; 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_state(input_dev, MT_TOOL_FINGER, false); } 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; 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_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); 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) }, /* Alps devices */ { .driver_data = MT_CLS_WIN_8_DUAL, HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL_PTP) }, { .driver_data = MT_CLS_WIN_8_DUAL, HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) }, { .driver_data = MT_CLS_WIN_8_DUAL, HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_1222) }, /* Lenovo X1 TAB Gen 2 */ { .driver_data = MT_CLS_WIN_8_DUAL, 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_DUAL, HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_TAB3) }, /* 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) }, /* Cirque devices */ { .driver_data = MT_CLS_WIN_8_DUAL, HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, I2C_VENDOR_ID_CIRQUE, I2C_PRODUCT_ID_CIRQUE_121F) }, /* 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) }, /* 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) }, /* 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) }, /* Stantum panels */ { .driver_data = MT_CLS_CONFIDENCE, MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM)}, /* 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 .reset_resume = mt_reset_resume, .resume = mt_resume, #endif }; module_hid_driver(mt_driver);
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