| // 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_QUIRK_SEPARATE_APP_REPORT BIT(19) |
| #define MT_QUIRK_FORCE_MULTI_INPUT BIT(20) |
| |
| #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; |
| unsigned int report_id; |
| 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 |
| /* reserved 0x0014 */ |
| #define MT_CLS_WIN_8_FORCE_MULTI_INPUT 0x0015 |
| |
| /* 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_CLS_SMART_TECH 0x0113 |
| |
| #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, |
| .export_all_inputs = true }, |
| { .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_FORCE_MULTI_INPUT, |
| .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 | |
| MT_QUIRK_FORCE_MULTI_INPUT, |
| .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, |
| }, |
| { .name = MT_CLS_SMART_TECH, |
| .quirks = MT_QUIRK_ALWAYS_VALID | |
| MT_QUIRK_IGNORE_DUPLICATES | |
| MT_QUIRK_CONTACT_CNT_ACCURATE | |
| MT_QUIRK_SEPARATE_APP_REPORT, |
| }, |
| { } |
| }; |
| |
| 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, |
| 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 && |
| (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 && 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_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; |
| |
| 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_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) }, |
| |
| /* 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) }, |
| |
| /* 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) }, |
| |
| /* 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); |