diff options
Diffstat (limited to 'kernel/drivers/hid/hid-multitouch.c')
| -rw-r--r-- | kernel/drivers/hid/hid-multitouch.c | 1407 |
1 files changed, 1407 insertions, 0 deletions
diff --git a/kernel/drivers/hid/hid-multitouch.c b/kernel/drivers/hid/hid-multitouch.c new file mode 100644 index 000000000..6a9b05b32 --- /dev/null +++ b/kernel/drivers/hid/hid-multitouch.c @@ -0,0 +1,1407 @@ +/* + * 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 program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +/* + * This driver is regularly tested thanks to the tool hid-test[1]. + * This tool relies on hid-replay[2] and a database of hid devices[3]. + * Please run these regression tests before patching this module so that + * your patch won't break existing known devices. + * + * [1] https://github.com/bentiss/hid-test + * [2] https://github.com/bentiss/hid-replay + * [3] https://github.com/bentiss/hid-devices + */ + +#include <linux/device.h> +#include <linux/hid.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/input/mt.h> +#include <linux/string.h> + + +MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); +MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); +MODULE_DESCRIPTION("HID multitouch panels"); +MODULE_LICENSE("GPL"); + +#include "hid-ids.h" + +/* quirks to control the device */ +#define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0) +#define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1) +#define MT_QUIRK_CYPRESS (1 << 2) +#define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) +#define MT_QUIRK_ALWAYS_VALID (1 << 4) +#define MT_QUIRK_VALID_IS_INRANGE (1 << 5) +#define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6) +#define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8) +#define MT_QUIRK_NO_AREA (1 << 9) +#define MT_QUIRK_IGNORE_DUPLICATES (1 << 10) +#define MT_QUIRK_HOVERING (1 << 11) +#define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12) +#define MT_QUIRK_FORCE_GET_FEATURE (1 << 13) + +#define MT_INPUTMODE_TOUCHSCREEN 0x02 +#define MT_INPUTMODE_TOUCHPAD 0x03 + +#define MT_BUTTONTYPE_CLICKPAD 0 + +struct mt_slot { + __s32 x, y, cx, cy, p, w, h; + __s32 contactid; /* the device ContactID assigned to this slot */ + bool touch_state; /* is the touch valid? */ + bool inrange_state; /* is the finger in proximity of the sensor? */ +}; + +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_fields { + unsigned usages[HID_MAX_FIELDS]; + unsigned int length; +}; + +struct mt_device { + struct mt_slot curdata; /* placeholder of incoming data */ + struct mt_class mtclass; /* our mt device class */ + struct mt_fields *fields; /* temporary placeholder for storing the + multitouch fields */ + int cc_index; /* contact count field index in the report */ + int cc_value_index; /* contact count value index in the field */ + unsigned last_slot_field; /* the last field of a slot */ + unsigned mt_report_id; /* the report ID of the multitouch device */ + __s16 inputmode; /* InputMode HID feature, -1 if non-existent */ + __s16 inputmode_index; /* InputMode HID feature index in the report */ + __s16 maxcontact_report_id; /* Maximum Contact Number HID feature, + -1 if non-existent */ + __u8 inputmode_value; /* InputMode HID feature value */ + __u8 num_received; /* how many contacts we received */ + __u8 num_expected; /* expected last contact index */ + __u8 maxcontacts; + __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 */ + __u8 buttons_count; /* number of physical buttons per touchpad */ + bool is_buttonpad; /* is this device a button pad? */ + bool serial_maybe; /* need to check for serial protocol */ + bool curvalid; /* is the current contact valid? */ + unsigned mt_flags; /* flags to pass to input-mt */ +}; + +static void mt_post_parse_default_settings(struct mt_device *td); +static void mt_post_parse(struct mt_device *td); + +/* 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 + +/* 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_VTL 0x0110 + +#define MT_DEFAULT_MAXCONTACT 10 +#define MT_MAX_MAXCONTACT 250 + +#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_device *td) +{ + if (td->curdata.contactid != 0 || td->num_received == 0) + return td->curdata.contactid; + else + return -1; +} + +static 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 }, + { .name = MT_CLS_EXPORT_ALL_INPUTS, + .quirks = MT_QUIRK_ALWAYS_VALID | + MT_QUIRK_CONTACT_CNT_ACCURATE, + .export_all_inputs = true }, + + /* + * vendor specific classes + */ + { .name = MT_CLS_3M, + .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | + MT_QUIRK_SLOT_IS_CONTACTID, + .sn_move = 2048, + .sn_width = 128, + .sn_height = 128, + .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_VTL, + .quirks = MT_QUIRK_ALWAYS_VALID | + MT_QUIRK_CONTACT_CNT_ACCURATE | + MT_QUIRK_FORCE_GET_FEATURE, + }, + { } +}; + +static ssize_t mt_show_quirks(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = container_of(dev, struct 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 = container_of(dev, struct hid_device, dev); + struct mt_device *td = hid_get_drvdata(hdev); + + unsigned long val; + + if (kstrtoul(buf, 0, &val)) + return -EINVAL; + + td->mtclass.quirks = val; + + if (td->cc_index < 0) + td->mtclass.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 struct attribute_group mt_attribute_group = { + .attrs = sysfs_attrs +}; + +static void mt_feature_mapping(struct hid_device *hdev, + struct hid_field *field, struct hid_usage *usage) +{ + struct mt_device *td = hid_get_drvdata(hdev); + + switch (usage->hid) { + case HID_DG_INPUTMODE: + /* Ignore if value index is out of bounds. */ + if (usage->usage_index >= field->report_count) { + dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); + break; + } + + td->inputmode = field->report->id; + td->inputmode_index = usage->usage_index; + + break; + case HID_DG_CONTACTMAX: + td->maxcontact_report_id = field->report->id; + 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; + } + + if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD) + td->is_buttonpad = true; + + 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 void mt_store_field(struct hid_usage *usage, struct mt_device *td, + struct hid_input *hi) +{ + struct mt_fields *f = td->fields; + + if (f->length >= HID_MAX_FIELDS) + return; + + f->usages[f->length++] = usage->hid; +} + +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_device *td = hid_get_drvdata(hdev); + struct mt_class *cls = &td->mtclass; + int code; + struct hid_usage *prev_usage = NULL; + + if (field->application == HID_DG_TOUCHSCREEN) + td->mt_flags |= INPUT_MT_DIRECT; + + /* + * Model touchscreens providing buttons as touchpads. + */ + if (field->application == HID_DG_TOUCHPAD || + (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { + td->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) + td->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)) { + hid_map_usage(hi, usage, bit, max, + EV_ABS, ABS_MT_TOOL_X); + set_abs(hi->input, ABS_MT_TOOL_X, field, + cls->sn_move); + } else { + hid_map_usage(hi, usage, bit, max, + EV_ABS, ABS_MT_POSITION_X); + set_abs(hi->input, ABS_MT_POSITION_X, field, + cls->sn_move); + } + + mt_store_field(usage, td, hi); + return 1; + case HID_GD_Y: + if (prev_usage && (prev_usage->hid == usage->hid)) { + hid_map_usage(hi, usage, bit, max, + EV_ABS, ABS_MT_TOOL_Y); + set_abs(hi->input, ABS_MT_TOOL_Y, field, + cls->sn_move); + } else { + hid_map_usage(hi, usage, bit, max, + EV_ABS, ABS_MT_POSITION_Y); + set_abs(hi->input, ABS_MT_POSITION_Y, field, + cls->sn_move); + } + + mt_store_field(usage, td, hi); + return 1; + } + return 0; + + case HID_UP_DIGITIZER: + switch (usage->hid) { + case HID_DG_INRANGE: + if (cls->quirks & MT_QUIRK_HOVERING) { + hid_map_usage(hi, usage, bit, max, + EV_ABS, ABS_MT_DISTANCE); + input_set_abs_params(hi->input, + ABS_MT_DISTANCE, 0, 1, 0, 0); + } + mt_store_field(usage, td, hi); + return 1; + case HID_DG_CONFIDENCE: + mt_store_field(usage, td, hi); + return 1; + case HID_DG_TIPSWITCH: + hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); + input_set_capability(hi->input, EV_KEY, BTN_TOUCH); + mt_store_field(usage, td, hi); + return 1; + case HID_DG_CONTACTID: + mt_store_field(usage, td, hi); + td->touches_by_report++; + td->mt_report_id = field->report->id; + return 1; + case HID_DG_WIDTH: + hid_map_usage(hi, usage, bit, max, + EV_ABS, ABS_MT_TOUCH_MAJOR); + if (!(cls->quirks & MT_QUIRK_NO_AREA)) + set_abs(hi->input, ABS_MT_TOUCH_MAJOR, field, + cls->sn_width); + mt_store_field(usage, td, hi); + return 1; + case HID_DG_HEIGHT: + hid_map_usage(hi, usage, bit, max, + EV_ABS, ABS_MT_TOUCH_MINOR); + if (!(cls->quirks & MT_QUIRK_NO_AREA)) { + set_abs(hi->input, ABS_MT_TOUCH_MINOR, field, + cls->sn_height); + input_set_abs_params(hi->input, + ABS_MT_ORIENTATION, 0, 1, 0, 0); + } + mt_store_field(usage, td, hi); + return 1; + case HID_DG_TIPPRESSURE: + hid_map_usage(hi, usage, bit, max, + EV_ABS, ABS_MT_PRESSURE); + set_abs(hi->input, ABS_MT_PRESSURE, field, + cls->sn_pressure); + mt_store_field(usage, td, hi); + return 1; + case HID_DG_CONTACTCOUNT: + /* Ignore if indexes are out of bounds. */ + if (field->index >= field->report->maxfield || + usage->usage_index >= field->report_count) + return 1; + td->cc_index = field->index; + td->cc_value_index = usage->usage_index; + return 1; + case HID_DG_CONTACTMAX: + /* we don't set td->last_slot_field as contactcount and + * contact max are global to the report */ + 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); + 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_touch_input_mapped(struct hid_device *hdev, struct hid_input *hi, + struct hid_field *field, struct hid_usage *usage, + unsigned long **bit, int *max) +{ + if (usage->type == EV_KEY || usage->type == EV_ABS) + set_bit(usage->type, hi->input->evbit); + + return -1; +} + +static int mt_compute_slot(struct mt_device *td, struct input_dev *input) +{ + __s32 quirks = td->mtclass.quirks; + + if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) + return td->curdata.contactid; + + if (quirks & MT_QUIRK_CYPRESS) + return cypress_compute_slot(td); + + if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) + return td->num_received; + + if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) + return td->curdata.contactid - 1; + + return input_mt_get_slot_by_key(input, td->curdata.contactid); +} + +/* + * this function is called when a whole contact has been processed, + * so that it can assign it to a slot and store the data there + */ +static void mt_complete_slot(struct mt_device *td, struct input_dev *input) +{ + if ((td->mtclass.quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && + td->num_received >= td->num_expected) + return; + + if (td->curvalid || (td->mtclass.quirks & MT_QUIRK_ALWAYS_VALID)) { + int slotnum = mt_compute_slot(td, input); + struct mt_slot *s = &td->curdata; + struct input_mt *mt = input->mt; + + if (slotnum < 0 || slotnum >= td->maxcontacts) + return; + + if ((td->mtclass.quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { + struct input_mt_slot *slot = &mt->slots[slotnum]; + if (input_mt_is_active(slot) && + input_mt_is_used(mt, slot)) + return; + } + + input_mt_slot(input, slotnum); + input_mt_report_slot_state(input, MT_TOOL_FINGER, + s->touch_state || s->inrange_state); + if (s->touch_state || s->inrange_state) { + /* this finger is in proximity of the sensor */ + int wide = (s->w > s->h); + /* divided by two to match visual scale of touch */ + int major = max(s->w, s->h) >> 1; + int minor = min(s->w, s->h) >> 1; + + input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); + input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); + input_event(input, EV_ABS, ABS_MT_TOOL_X, s->cx); + input_event(input, EV_ABS, ABS_MT_TOOL_Y, s->cy); + input_event(input, EV_ABS, ABS_MT_DISTANCE, + !s->touch_state); + input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide); + input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); + input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major); + input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor); + } + } + + td->num_received++; +} + +/* + * this function is called when a whole packet has been received and processed, + * so that it can decide what to send to the input layer. + */ +static void mt_sync_frame(struct mt_device *td, struct input_dev *input) +{ + input_mt_sync_frame(input); + input_sync(input); + td->num_received = 0; +} + +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 void mt_process_mt_event(struct hid_device *hid, struct hid_field *field, + struct hid_usage *usage, __s32 value) +{ + struct mt_device *td = hid_get_drvdata(hid); + __s32 quirks = td->mtclass.quirks; + struct input_dev *input = field->hidinput->input; + + if (hid->claimed & HID_CLAIMED_INPUT) { + switch (usage->hid) { + case HID_DG_INRANGE: + if (quirks & MT_QUIRK_VALID_IS_INRANGE) + td->curvalid = value; + if (quirks & MT_QUIRK_HOVERING) + td->curdata.inrange_state = value; + break; + case HID_DG_TIPSWITCH: + if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) + td->curvalid = value; + td->curdata.touch_state = value; + break; + case HID_DG_CONFIDENCE: + if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) + td->curvalid = value; + break; + case HID_DG_CONTACTID: + td->curdata.contactid = value; + break; + case HID_DG_TIPPRESSURE: + td->curdata.p = value; + break; + case HID_GD_X: + if (usage->code == ABS_MT_TOOL_X) + td->curdata.cx = value; + else + td->curdata.x = value; + break; + case HID_GD_Y: + if (usage->code == ABS_MT_TOOL_Y) + td->curdata.cy = value; + else + td->curdata.y = value; + break; + case HID_DG_WIDTH: + td->curdata.w = value; + break; + case HID_DG_HEIGHT: + td->curdata.h = value; + break; + case HID_DG_CONTACTCOUNT: + break; + case HID_DG_TOUCH: + /* do nothing */ + break; + + default: + if (usage->type) + input_event(input, usage->type, usage->code, + value); + return; + } + + if (usage->usage_index + 1 == field->report_count) { + /* we only take into account the last report. */ + if (usage->hid == td->last_slot_field) + mt_complete_slot(td, field->hidinput->input); + } + + } +} + +static void mt_touch_report(struct hid_device *hid, struct hid_report *report) +{ + struct mt_device *td = hid_get_drvdata(hid); + struct hid_field *field; + unsigned count; + int r, n; + + /* + * Includes multi-packet support where subsequent + * packets are sent with zero contactcount. + */ + if (td->cc_index >= 0) { + struct hid_field *field = report->field[td->cc_index]; + int value = field->value[td->cc_value_index]; + if (value) + td->num_expected = value; + } + + 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, field, &field->usage[n], + field->value[n]); + } + + if (td->num_received >= td->num_expected) + mt_sync_frame(td, report->field[0]->hidinput->input); +} + +static void mt_touch_input_configured(struct hid_device *hdev, + struct hid_input *hi) +{ + struct mt_device *td = hid_get_drvdata(hdev); + struct mt_class *cls = &td->mtclass; + struct input_dev *input = hi->input; + + if (!td->maxcontacts) + td->maxcontacts = MT_DEFAULT_MAXCONTACT; + + mt_post_parse(td); + if (td->serial_maybe) + mt_post_parse_default_settings(td); + + if (cls->is_indirect) + td->mt_flags |= INPUT_MT_POINTER; + + if (cls->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) + td->mt_flags |= INPUT_MT_DROP_UNUSED; + + /* check for clickpads */ + if ((td->mt_flags & INPUT_MT_POINTER) && (td->buttons_count == 1)) + td->is_buttonpad = true; + + if (td->is_buttonpad) + __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); + + input_mt_init_slots(input, td->maxcontacts, td->mt_flags); + + td->mt_flags = 0; +} + +static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, + struct hid_field *field, struct hid_usage *usage, + unsigned long **bit, int *max) +{ + struct mt_device *td = hid_get_drvdata(hdev); + + /* + * 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) + return -1; + + /* + * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" + * for the stylus. + */ + if (field->physical == HID_DG_STYLUS) + return 0; + + if (field->application == HID_DG_TOUCHSCREEN || + field->application == HID_DG_TOUCHPAD) + return mt_touch_input_mapping(hdev, hi, field, usage, bit, max); + + /* 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) +{ + /* + * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" + * for the stylus. + */ + if (field->physical == HID_DG_STYLUS) + return 0; + + if (field->application == HID_DG_TOUCHSCREEN || + field->application == HID_DG_TOUCHPAD) + return mt_touch_input_mapped(hdev, hi, field, usage, bit, max); + + /* 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); + + if (field->report->id == td->mt_report_id) + 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]; + + if (!(hid->claimed & HID_CLAIMED_INPUT)) + return; + + if (report->id == td->mt_report_id) + return mt_touch_report(hid, report); + + if (field && field->hidinput && field->hidinput->input) + input_sync(field->hidinput->input); +} + +static void mt_set_input_mode(struct hid_device *hdev) +{ + struct mt_device *td = hid_get_drvdata(hdev); + struct hid_report *r; + struct hid_report_enum *re; + struct mt_class *cls = &td->mtclass; + char *buf; + int report_len; + + if (td->inputmode < 0) + return; + + re = &(hdev->report_enum[HID_FEATURE_REPORT]); + r = re->report_id_hash[td->inputmode]; + if (r) { + if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { + report_len = hid_report_len(r); + buf = hid_alloc_report_buf(r, GFP_KERNEL); + if (!buf) { + hid_err(hdev, "failed to allocate buffer for report\n"); + return; + } + hid_hw_raw_request(hdev, r->id, buf, report_len, + HID_FEATURE_REPORT, + HID_REQ_GET_REPORT); + kfree(buf); + } + r->field[0]->value[td->inputmode_index] = td->inputmode_value; + hid_hw_request(hdev, r, HID_REQ_SET_REPORT); + } +} + +static void mt_set_maxcontacts(struct hid_device *hdev) +{ + struct mt_device *td = hid_get_drvdata(hdev); + struct hid_report *r; + struct hid_report_enum *re; + int fieldmax, max; + + if (td->maxcontact_report_id < 0) + return; + + if (!td->mtclass.maxcontacts) + return; + + re = &hdev->report_enum[HID_FEATURE_REPORT]; + r = re->report_id_hash[td->maxcontact_report_id]; + if (r) { + max = td->mtclass.maxcontacts; + fieldmax = r->field[0]->logical_maximum; + max = min(fieldmax, max); + if (r->field[0]->value[0] != max) { + r->field[0]->value[0] = max; + hid_hw_request(hdev, r, HID_REQ_SET_REPORT); + } + } +} + +static void mt_post_parse_default_settings(struct mt_device *td) +{ + __s32 quirks = td->mtclass.quirks; + + /* unknown serial device needs special quirks */ + if (td->touches_by_report == 1) { + 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; + } + + td->mtclass.quirks = quirks; +} + +static void mt_post_parse(struct mt_device *td) +{ + struct mt_fields *f = td->fields; + struct mt_class *cls = &td->mtclass; + + if (td->touches_by_report > 0) { + int field_count_per_touch = f->length / td->touches_by_report; + td->last_slot_field = f->usages[field_count_per_touch - 1]; + } + + if (td->cc_index < 0) + cls->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; +} + +static void 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 hid_field *field = hi->report->field[0]; + + if (hi->report->id == td->mt_report_id) + mt_touch_input_configured(hdev, hi); + + /* + * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN" + * for the stylus. Check this first, and then rely on the application + * field. + */ + if (hi->report->field[0]->physical == HID_DG_STYLUS) { + suffix = "Pen"; + /* force BTN_STYLUS to allow tablet matching in udev */ + __set_bit(BTN_STYLUS, hi->input->keybit); + } else { + switch (field->application) { + case HID_GD_KEYBOARD: + suffix = "Keyboard"; + break; + case HID_GD_KEYPAD: + suffix = "Keypad"; + break; + case HID_GD_MOUSE: + suffix = "Mouse"; + break; + case HID_DG_STYLUS: + suffix = "Pen"; + /* force BTN_STYLUS to allow tablet matching in udev */ + __set_bit(BTN_STYLUS, hi->input->keybit); + break; + case HID_DG_TOUCHSCREEN: + /* we do not set suffix = "Touchscreen" */ + break; + case HID_GD_SYSTEM_CONTROL: + suffix = "System Control"; + break; + case HID_CP_CONSUMER_CONTROL: + suffix = "Consumer Control"; + 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; + } + } +} + +static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int ret, i; + struct mt_device *td; + struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ + + for (i = 0; mt_classes[i].name ; i++) { + if (id->driver_data == mt_classes[i].name) { + mtclass = &(mt_classes[i]); + break; + } + } + + /* This allows the driver to correctly support devices + * that emit events over several HID messages. + */ + hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; + + /* + * This allows the driver to handle different input sensors + * that emits events through different reports on the same HID + * device. + */ + hdev->quirks |= HID_QUIRK_MULTI_INPUT; + hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT; + + /* + * Handle special quirks for Windows 8 certified devices. + */ + if (id->group == HID_GROUP_MULTITOUCH_WIN_8) + /* + * Some multitouch screens do not like to be polled for input + * reports. Fortunately, the Win8 spec says that all touches + * should be sent during each report, making the initialization + * of input reports unnecessary. + */ + hdev->quirks |= HID_QUIRK_NO_INIT_INPUT_REPORTS; + + 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->mtclass = *mtclass; + td->inputmode = -1; + td->maxcontact_report_id = -1; + td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; + td->cc_index = -1; + td->mt_report_id = -1; + hid_set_drvdata(hdev, td); + + td->fields = devm_kzalloc(&hdev->dev, sizeof(struct mt_fields), + GFP_KERNEL); + if (!td->fields) { + dev_err(&hdev->dev, "cannot allocate multitouch fields data\n"); + return -ENOMEM; + } + + if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) + td->serial_maybe = true; + + ret = hid_parse(hdev); + if (ret != 0) + return ret; + + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (ret) + return ret; + + ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group); + + mt_set_maxcontacts(hdev); + mt_set_input_mode(hdev); + + /* release .fields memory as it is not used anymore */ + devm_kfree(&hdev->dev, td->fields); + td->fields = NULL; + + return 0; +} + +#ifdef CONFIG_PM +static int mt_reset_resume(struct hid_device *hdev) +{ + mt_set_maxcontacts(hdev); + mt_set_input_mode(hdev); + 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) +{ + 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) }, + + /* 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) }, + + /* 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) }, + + /* 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) }, + + /* 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) }, + + /* Novatek Panel */ + { .driver_data = MT_CLS_NSMU, + MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, + USB_DEVICE_ID_NOVATEK_PCT) }, + + /* 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) }, + + /* 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) }, + + /* 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); |