+++ /dev/null
-/*
- * HID driver for 3M PCT multitouch panels
- *
- * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
- * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
- * Copyright (c) 2010 Canonical, Ltd.
- *
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <linux/device.h>
-#include <linux/hid.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/usb.h>
-#include <linux/input/mt.h>
-
-MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
-MODULE_DESCRIPTION("3M PCT multitouch panels");
-MODULE_LICENSE("GPL");
-
-#include "hid-ids.h"
-
-#define MAX_SLOTS 60
-
-/* estimated signal-to-noise ratios */
-#define SN_MOVE 2048
-#define SN_WIDTH 128
-
-struct mmm_finger {
- __s32 x, y, w, h;
- bool touch, valid;
-};
-
-struct mmm_data {
- struct mmm_finger f[MAX_SLOTS];
- __u8 curid;
- __u8 nexp, nreal;
- bool touch, valid;
-};
-
-static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
- struct hid_field *field, struct hid_usage *usage,
- unsigned long **bit, int *max)
-{
- int f1 = field->logical_minimum;
- int f2 = field->logical_maximum;
- int df = f2 - f1;
-
- switch (usage->hid & HID_USAGE_PAGE) {
-
- case HID_UP_BUTTON:
- return -1;
-
- case HID_UP_GENDESK:
- switch (usage->hid) {
- case HID_GD_X:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_POSITION_X);
- input_set_abs_params(hi->input, ABS_MT_POSITION_X,
- f1, f2, df / SN_MOVE, 0);
- /* touchscreen emulation */
- input_set_abs_params(hi->input, ABS_X,
- f1, f2, df / SN_MOVE, 0);
- return 1;
- case HID_GD_Y:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_POSITION_Y);
- input_set_abs_params(hi->input, ABS_MT_POSITION_Y,
- f1, f2, df / SN_MOVE, 0);
- /* touchscreen emulation */
- input_set_abs_params(hi->input, ABS_Y,
- f1, f2, df / SN_MOVE, 0);
- return 1;
- }
- return 0;
-
- case HID_UP_DIGITIZER:
- switch (usage->hid) {
- /* we do not want to map these: no input-oriented meaning */
- case 0x14:
- case 0x23:
- case HID_DG_INPUTMODE:
- case HID_DG_DEVICEINDEX:
- case HID_DG_CONTACTCOUNT:
- case HID_DG_CONTACTMAX:
- case HID_DG_INRANGE:
- case HID_DG_CONFIDENCE:
- return -1;
- case HID_DG_TIPSWITCH:
- /* touchscreen emulation */
- hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
- input_set_capability(hi->input, EV_KEY, BTN_TOUCH);
- return 1;
- case HID_DG_WIDTH:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_TOUCH_MAJOR);
- input_set_abs_params(hi->input, ABS_MT_TOUCH_MAJOR,
- f1, f2, df / SN_WIDTH, 0);
- return 1;
- case HID_DG_HEIGHT:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_TOUCH_MINOR);
- input_set_abs_params(hi->input, ABS_MT_TOUCH_MINOR,
- f1, f2, df / SN_WIDTH, 0);
- input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
- 0, 1, 0, 0);
- return 1;
- case HID_DG_CONTACTID:
- input_mt_init_slots(hi->input, MAX_SLOTS);
- return 1;
- }
- /* let hid-input decide for the others */
- return 0;
-
- case 0xff000000:
- /* we do not want to map these: no input-oriented meaning */
- return -1;
- }
-
- return 0;
-}
-
-static int mmm_input_mapped(struct hid_device *hdev, struct hid_input *hi,
- struct hid_field *field, struct hid_usage *usage,
- unsigned long **bit, int *max)
-{
- /* tell hid-input to skip setup of these event types */
- if (usage->type == EV_KEY || usage->type == EV_ABS)
- set_bit(usage->type, hi->input->evbit);
- return -1;
-}
-
-/*
- * 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 mmm_filter_event(struct mmm_data *md, struct input_dev *input)
-{
- int i;
- for (i = 0; i < MAX_SLOTS; ++i) {
- struct mmm_finger *f = &md->f[i];
- if (!f->valid) {
- /* this finger is just placeholder data, ignore */
- continue;
- }
- input_mt_slot(input, i);
- input_mt_report_slot_state(input, MT_TOOL_FINGER, f->touch);
- if (f->touch) {
- /* this finger is on the screen */
- int wide = (f->w > f->h);
- /* divided by two to match visual scale of touch */
- int major = max(f->w, f->h) >> 1;
- int minor = min(f->w, f->h) >> 1;
-
- input_event(input, EV_ABS, ABS_MT_POSITION_X, f->x);
- input_event(input, EV_ABS, ABS_MT_POSITION_Y, f->y);
- input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
- input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, major);
- input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, minor);
- }
- f->valid = 0;
- }
-
- input_mt_report_pointer_emulation(input, true);
- input_sync(input);
-}
-
-/*
- * this function is called upon all reports
- * so that we can accumulate contact point information,
- * and call input_mt_sync after each point.
- */
-static int mmm_event(struct hid_device *hid, struct hid_field *field,
- struct hid_usage *usage, __s32 value)
-{
- struct mmm_data *md = hid_get_drvdata(hid);
- /*
- * strangely, this function can be called before
- * field->hidinput is initialized!
- */
- if (hid->claimed & HID_CLAIMED_INPUT) {
- struct input_dev *input = field->hidinput->input;
- switch (usage->hid) {
- case HID_DG_TIPSWITCH:
- md->touch = value;
- break;
- case HID_DG_CONFIDENCE:
- md->valid = value;
- break;
- case HID_DG_WIDTH:
- if (md->valid)
- md->f[md->curid].w = value;
- break;
- case HID_DG_HEIGHT:
- if (md->valid)
- md->f[md->curid].h = value;
- break;
- case HID_DG_CONTACTID:
- value = clamp_val(value, 0, MAX_SLOTS - 1);
- if (md->valid) {
- md->curid = value;
- md->f[value].touch = md->touch;
- md->f[value].valid = 1;
- md->nreal++;
- }
- break;
- case HID_GD_X:
- if (md->valid)
- md->f[md->curid].x = value;
- break;
- case HID_GD_Y:
- if (md->valid)
- md->f[md->curid].y = value;
- break;
- case HID_DG_CONTACTCOUNT:
- if (value)
- md->nexp = value;
- if (md->nreal >= md->nexp) {
- mmm_filter_event(md, input);
- md->nreal = 0;
- }
- break;
- }
- }
-
- /* we have handled the hidinput part, now remains hiddev */
- if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
- hid->hiddev_hid_event(hid, field, usage, value);
-
- return 1;
-}
-
-static int mmm_probe(struct hid_device *hdev, const struct hid_device_id *id)
-{
- int ret;
- struct mmm_data *md;
-
- hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC;
-
- md = kzalloc(sizeof(struct mmm_data), GFP_KERNEL);
- if (!md) {
- hid_err(hdev, "cannot allocate 3M data\n");
- return -ENOMEM;
- }
- hid_set_drvdata(hdev, md);
-
- ret = hid_parse(hdev);
- if (!ret)
- ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
-
- if (ret)
- kfree(md);
- return ret;
-}
-
-static void mmm_remove(struct hid_device *hdev)
-{
- hid_hw_stop(hdev);
- kfree(hid_get_drvdata(hdev));
- hid_set_drvdata(hdev, NULL);
-}
-
-static const struct hid_device_id mmm_devices[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
- { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
- { }
-};
-MODULE_DEVICE_TABLE(hid, mmm_devices);
-
-static const struct hid_usage_id mmm_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 mmm_driver = {
- .name = "3m-pct",
- .id_table = mmm_devices,
- .probe = mmm_probe,
- .remove = mmm_remove,
- .input_mapping = mmm_input_mapping,
- .input_mapped = mmm_input_mapped,
- .usage_table = mmm_grabbed_usages,
- .event = mmm_event,
-};
-
-static int __init mmm_init(void)
-{
- return hid_register_driver(&mmm_driver);
-}
-
-static void __exit mmm_exit(void)
-{
- hid_unregister_driver(&mmm_driver);
-}
-
-module_init(mmm_init);
-module_exit(mmm_exit);
-
+++ /dev/null
-/*
- * HID driver for Cando dual-touch panels
- *
- * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
- *
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <linux/device.h>
-#include <linux/hid.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
-MODULE_DESCRIPTION("Cando dual-touch panel");
-MODULE_LICENSE("GPL");
-
-#include "hid-ids.h"
-
-struct cando_data {
- __u16 x, y;
- __u8 id;
- __s8 oldest; /* id of the oldest finger in previous frame */
- bool valid; /* valid finger data, or just placeholder? */
- bool first; /* is this the first finger in this frame? */
- __s8 firstid; /* id of the first finger in the frame */
- __u16 firstx, firsty; /* (x, y) of the first finger in the frame */
-};
-
-static int cando_input_mapping(struct hid_device *hdev, struct hid_input *hi,
- struct hid_field *field, struct hid_usage *usage,
- unsigned long **bit, int *max)
-{
- switch (usage->hid & HID_USAGE_PAGE) {
-
- case HID_UP_GENDESK:
- switch (usage->hid) {
- case HID_GD_X:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_POSITION_X);
- /* touchscreen emulation */
- input_set_abs_params(hi->input, ABS_X,
- field->logical_minimum,
- field->logical_maximum, 0, 0);
- return 1;
- case HID_GD_Y:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_POSITION_Y);
- /* touchscreen emulation */
- input_set_abs_params(hi->input, ABS_Y,
- field->logical_minimum,
- field->logical_maximum, 0, 0);
- return 1;
- }
- return 0;
-
- case HID_UP_DIGITIZER:
- switch (usage->hid) {
- case HID_DG_TIPSWITCH:
- case HID_DG_CONTACTMAX:
- return -1;
- case HID_DG_INRANGE:
- /* touchscreen emulation */
- hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
- return 1;
- case HID_DG_CONTACTID:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_TRACKING_ID);
- return 1;
- }
- return 0;
- }
-
- return 0;
-}
-
-static int cando_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)
- clear_bit(usage->code, *bit);
-
- return 0;
-}
-
-/*
- * this function is called when a whole finger has been parsed,
- * so that it can decide what to send to the input layer.
- */
-static void cando_filter_event(struct cando_data *td, struct input_dev *input)
-{
- td->first = !td->first; /* touchscreen emulation */
-
- if (!td->valid) {
- /*
- * touchscreen emulation: if this is the second finger and
- * the first was valid, the first was the oldest; if the
- * first was not valid and there was a valid finger in the
- * previous frame, this is a release.
- */
- if (td->first) {
- td->firstid = -1;
- } else if (td->firstid >= 0) {
- input_event(input, EV_ABS, ABS_X, td->firstx);
- input_event(input, EV_ABS, ABS_Y, td->firsty);
- td->oldest = td->firstid;
- } else if (td->oldest >= 0) {
- input_event(input, EV_KEY, BTN_TOUCH, 0);
- td->oldest = -1;
- }
-
- return;
- }
-
- input_event(input, EV_ABS, ABS_MT_TRACKING_ID, td->id);
- input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
- input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
-
- input_mt_sync(input);
-
- /*
- * touchscreen emulation: if there was no touching finger previously,
- * emit touch event
- */
- if (td->oldest < 0) {
- input_event(input, EV_KEY, BTN_TOUCH, 1);
- td->oldest = td->id;
- }
-
- /*
- * touchscreen emulation: if this is the first finger, wait for the
- * second; the oldest is then the second if it was the oldest already
- * or if there was no first, the first otherwise.
- */
- if (td->first) {
- td->firstx = td->x;
- td->firsty = td->y;
- td->firstid = td->id;
- } else {
- int x, y, oldest;
- if (td->id == td->oldest || td->firstid < 0) {
- x = td->x;
- y = td->y;
- oldest = td->id;
- } else {
- x = td->firstx;
- y = td->firsty;
- oldest = td->firstid;
- }
- input_event(input, EV_ABS, ABS_X, x);
- input_event(input, EV_ABS, ABS_Y, y);
- td->oldest = oldest;
- }
-}
-
-
-static int cando_event(struct hid_device *hid, struct hid_field *field,
- struct hid_usage *usage, __s32 value)
-{
- struct cando_data *td = hid_get_drvdata(hid);
-
- if (hid->claimed & HID_CLAIMED_INPUT) {
- struct input_dev *input = field->hidinput->input;
-
- switch (usage->hid) {
- case HID_DG_INRANGE:
- td->valid = value;
- break;
- case HID_DG_CONTACTID:
- td->id = value;
- break;
- case HID_GD_X:
- td->x = value;
- break;
- case HID_GD_Y:
- td->y = value;
- cando_filter_event(td, input);
- break;
- case HID_DG_TIPSWITCH:
- /* avoid interference from generic hidinput handling */
- break;
-
- default:
- /* fallback to the generic hidinput handling */
- return 0;
- }
- }
-
- /* we have handled the hidinput part, now remains hiddev */
- if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
- hid->hiddev_hid_event(hid, field, usage, value);
-
- return 1;
-}
-
-static int cando_probe(struct hid_device *hdev, const struct hid_device_id *id)
-{
- int ret;
- struct cando_data *td;
-
- td = kmalloc(sizeof(struct cando_data), GFP_KERNEL);
- if (!td) {
- hid_err(hdev, "cannot allocate Cando Touch data\n");
- return -ENOMEM;
- }
- hid_set_drvdata(hdev, td);
- td->first = false;
- td->oldest = -1;
- td->valid = false;
-
- ret = hid_parse(hdev);
- if (!ret)
- ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
-
- if (ret)
- kfree(td);
-
- return ret;
-}
-
-static void cando_remove(struct hid_device *hdev)
-{
- hid_hw_stop(hdev);
- kfree(hid_get_drvdata(hdev));
- hid_set_drvdata(hdev, NULL);
-}
-
-static const struct hid_device_id cando_devices[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
- USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
- { HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
- USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
- { HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
- USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
- { HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
- USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
- { }
-};
-MODULE_DEVICE_TABLE(hid, cando_devices);
-
-static const struct hid_usage_id cando_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 cando_driver = {
- .name = "cando-touch",
- .id_table = cando_devices,
- .probe = cando_probe,
- .remove = cando_remove,
- .input_mapping = cando_input_mapping,
- .input_mapped = cando_input_mapped,
- .usage_table = cando_grabbed_usages,
- .event = cando_event,
-};
-
-static int __init cando_init(void)
-{
- return hid_register_driver(&cando_driver);
-}
-
-static void __exit cando_exit(void)
-{
- hid_unregister_driver(&cando_driver);
-}
-
-module_init(cando_init);
-module_exit(cando_exit);
-
+++ /dev/null
-/*
- * HID driver for eGalax dual-touch panels
- *
- * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
- * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
- * Copyright (c) 2010 Canonical, Ltd.
- *
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <linux/device.h>
-#include <linux/hid.h>
-#include <linux/module.h>
-#include <linux/usb.h>
-#include <linux/input/mt.h>
-#include <linux/slab.h>
-#include "usbhid/usbhid.h"
-
-MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
-MODULE_DESCRIPTION("eGalax dual-touch panel");
-MODULE_LICENSE("GPL");
-
-#include "hid-ids.h"
-
-#define MAX_SLOTS 2
-
-/* estimated signal-to-noise ratios */
-#define SN_MOVE 4096
-#define SN_PRESSURE 32
-
-struct egalax_data {
- int valid;
- int slot;
- int touch;
- int x, y, z;
-};
-
-static void set_abs(struct input_dev *input, unsigned int code,
- struct hid_field *field, int snratio)
-{
- int fmin = field->logical_minimum;
- int fmax = field->logical_maximum;
- int fuzz = snratio ? (fmax - fmin) / snratio : 0;
- input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
-}
-
-static int egalax_input_mapping(struct hid_device *hdev, struct hid_input *hi,
- struct hid_field *field, struct hid_usage *usage,
- unsigned long **bit, int *max)
-{
- struct input_dev *input = hi->input;
-
- switch (usage->hid & HID_USAGE_PAGE) {
-
- case HID_UP_GENDESK:
- switch (usage->hid) {
- case HID_GD_X:
- field->logical_maximum = 32760;
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_POSITION_X);
- set_abs(input, ABS_MT_POSITION_X, field, SN_MOVE);
- /* touchscreen emulation */
- set_abs(input, ABS_X, field, SN_MOVE);
- return 1;
- case HID_GD_Y:
- field->logical_maximum = 32760;
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_POSITION_Y);
- set_abs(input, ABS_MT_POSITION_Y, field, SN_MOVE);
- /* touchscreen emulation */
- set_abs(input, ABS_Y, field, SN_MOVE);
- return 1;
- }
- return 0;
-
- case HID_UP_DIGITIZER:
- switch (usage->hid) {
- case HID_DG_TIPSWITCH:
- /* touchscreen emulation */
- hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
- input_set_capability(input, EV_KEY, BTN_TOUCH);
- return 1;
- case HID_DG_INRANGE:
- case HID_DG_CONFIDENCE:
- case HID_DG_CONTACTCOUNT:
- case HID_DG_CONTACTMAX:
- return -1;
- case HID_DG_CONTACTID:
- input_mt_init_slots(input, MAX_SLOTS);
- return 1;
- case HID_DG_TIPPRESSURE:
- field->logical_minimum = 0;
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_PRESSURE);
- set_abs(input, ABS_MT_PRESSURE, field, SN_PRESSURE);
- /* touchscreen emulation */
- set_abs(input, ABS_PRESSURE, field, SN_PRESSURE);
- return 1;
- }
- return 0;
- }
-
- /* ignore others (from other reports we won't get anyway) */
- return -1;
-}
-
-static int egalax_input_mapped(struct hid_device *hdev, struct hid_input *hi,
- struct hid_field *field, struct hid_usage *usage,
- unsigned long **bit, int *max)
-{
- /* tell hid-input to skip setup of these event types */
- if (usage->type == EV_KEY || usage->type == EV_ABS)
- set_bit(usage->type, hi->input->evbit);
- return -1;
-}
-
-/*
- * this function is called when a whole finger has been parsed,
- * so that it can decide what to send to the input layer.
- */
-static void egalax_filter_event(struct egalax_data *td, struct input_dev *input)
-{
- input_mt_slot(input, td->slot);
- input_mt_report_slot_state(input, MT_TOOL_FINGER, td->touch);
- if (td->touch) {
- input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
- input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
- input_event(input, EV_ABS, ABS_MT_PRESSURE, td->z);
- }
- input_mt_report_pointer_emulation(input, true);
-}
-
-static int egalax_event(struct hid_device *hid, struct hid_field *field,
- struct hid_usage *usage, __s32 value)
-{
- struct egalax_data *td = hid_get_drvdata(hid);
-
- /* Note, eGalax has two product lines: the first is resistive and
- * uses a standard parallel multitouch protocol (product ID ==
- * 48xx). The second is capacitive and uses an unusual "serial"
- * protocol with a different message for each multitouch finger
- * (product ID == 72xx).
- */
- if (hid->claimed & HID_CLAIMED_INPUT) {
- struct input_dev *input = field->hidinput->input;
-
- switch (usage->hid) {
- case HID_DG_INRANGE:
- td->valid = value;
- break;
- case HID_DG_CONFIDENCE:
- /* avoid interference from generic hidinput handling */
- break;
- case HID_DG_TIPSWITCH:
- td->touch = value;
- break;
- case HID_DG_TIPPRESSURE:
- td->z = value;
- break;
- case HID_DG_CONTACTID:
- td->slot = clamp_val(value, 0, MAX_SLOTS - 1);
- break;
- case HID_GD_X:
- td->x = value;
- break;
- case HID_GD_Y:
- td->y = value;
- /* this is the last field in a finger */
- if (td->valid)
- egalax_filter_event(td, input);
- break;
- case HID_DG_CONTACTCOUNT:
- /* touch emulation: this is the last field in a frame */
- break;
-
- default:
- /* fallback to the generic hidinput handling */
- return 0;
- }
- }
-
- /* we have handled the hidinput part, now remains hiddev */
- if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
- hid->hiddev_hid_event(hid, field, usage, value);
-
- return 1;
-}
-
-static int egalax_probe(struct hid_device *hdev, const struct hid_device_id *id)
-{
- int ret;
- struct egalax_data *td;
- struct hid_report *report;
-
- td = kzalloc(sizeof(struct egalax_data), GFP_KERNEL);
- if (!td) {
- hid_err(hdev, "cannot allocate eGalax data\n");
- return -ENOMEM;
- }
- hid_set_drvdata(hdev, td);
-
- ret = hid_parse(hdev);
- if (ret)
- goto end;
-
- ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
- if (ret)
- goto end;
-
- report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[5];
- if (report) {
- report->field[0]->value[0] = 2;
- usbhid_submit_report(hdev, report, USB_DIR_OUT);
- }
-
-end:
- if (ret)
- kfree(td);
-
- return ret;
-}
-
-static void egalax_remove(struct hid_device *hdev)
-{
- hid_hw_stop(hdev);
- kfree(hid_get_drvdata(hdev));
- hid_set_drvdata(hdev, NULL);
-}
-
-static const struct hid_device_id egalax_devices[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
- USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
- { HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
- USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
- { HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
- USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
- { HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
- USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
- { HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
- USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
- { }
-};
-MODULE_DEVICE_TABLE(hid, egalax_devices);
-
-static const struct hid_usage_id egalax_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 egalax_driver = {
- .name = "egalax-touch",
- .id_table = egalax_devices,
- .probe = egalax_probe,
- .remove = egalax_remove,
- .input_mapping = egalax_input_mapping,
- .input_mapped = egalax_input_mapped,
- .usage_table = egalax_grabbed_usages,
- .event = egalax_event,
-};
-
-static int __init egalax_init(void)
-{
- return hid_register_driver(&egalax_driver);
-}
-
-static void __exit egalax_exit(void)
-{
- hid_unregister_driver(&egalax_driver);
-}
-
-module_init(egalax_init);
-module_exit(egalax_exit);
-
+++ /dev/null
-/*
- * HID driver for Stantum multitouch panels
- *
- * Copyright (c) 2009 Stephane Chatty <chatty@enac.fr>
- *
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <linux/device.h>
-#include <linux/hid.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
-MODULE_DESCRIPTION("Stantum HID multitouch panels");
-MODULE_LICENSE("GPL");
-
-#include "hid-ids.h"
-
-struct stantum_data {
- __s32 x, y, z, w, h; /* x, y, pressure, width, height */
- __u16 id; /* touch id */
- bool valid; /* valid finger data, or just placeholder? */
- bool first; /* first finger in the HID packet? */
- bool activity; /* at least one active finger so far? */
-};
-
-static int stantum_input_mapping(struct hid_device *hdev, struct hid_input *hi,
- struct hid_field *field, struct hid_usage *usage,
- unsigned long **bit, int *max)
-{
- switch (usage->hid & HID_USAGE_PAGE) {
-
- case HID_UP_GENDESK:
- switch (usage->hid) {
- case HID_GD_X:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_POSITION_X);
- /* touchscreen emulation */
- input_set_abs_params(hi->input, ABS_X,
- field->logical_minimum,
- field->logical_maximum, 0, 0);
- return 1;
- case HID_GD_Y:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_POSITION_Y);
- /* touchscreen emulation */
- input_set_abs_params(hi->input, ABS_Y,
- field->logical_minimum,
- field->logical_maximum, 0, 0);
- return 1;
- }
- return 0;
-
- case HID_UP_DIGITIZER:
- switch (usage->hid) {
- case HID_DG_INRANGE:
- case HID_DG_CONFIDENCE:
- case HID_DG_INPUTMODE:
- case HID_DG_DEVICEINDEX:
- case HID_DG_CONTACTCOUNT:
- case HID_DG_CONTACTMAX:
- return -1;
-
- case HID_DG_TIPSWITCH:
- /* touchscreen emulation */
- hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
- return 1;
-
- case HID_DG_WIDTH:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_TOUCH_MAJOR);
- return 1;
- case HID_DG_HEIGHT:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_TOUCH_MINOR);
- input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
- 1, 1, 0, 0);
- return 1;
- case HID_DG_TIPPRESSURE:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_PRESSURE);
- return 1;
-
- case HID_DG_CONTACTID:
- hid_map_usage(hi, usage, bit, max,
- EV_ABS, ABS_MT_TRACKING_ID);
- return 1;
-
- }
- return 0;
-
- case 0xff000000:
- /* no input-oriented meaning */
- return -1;
- }
-
- return 0;
-}
-
-static int stantum_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)
- clear_bit(usage->code, *bit);
-
- return 0;
-}
-
-/*
- * this function is called when a whole finger has been parsed,
- * so that it can decide what to send to the input layer.
- */
-static void stantum_filter_event(struct stantum_data *sd,
- struct input_dev *input)
-{
- bool wide;
-
- if (!sd->valid) {
- /*
- * touchscreen emulation: if the first finger is not valid and
- * there previously was finger activity, this is a release
- */
- if (sd->first && sd->activity) {
- input_event(input, EV_KEY, BTN_TOUCH, 0);
- sd->activity = false;
- }
- return;
- }
-
- input_event(input, EV_ABS, ABS_MT_TRACKING_ID, sd->id);
- input_event(input, EV_ABS, ABS_MT_POSITION_X, sd->x);
- input_event(input, EV_ABS, ABS_MT_POSITION_Y, sd->y);
-
- wide = (sd->w > sd->h);
- input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
- input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, wide ? sd->w : sd->h);
- input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, wide ? sd->h : sd->w);
-
- input_event(input, EV_ABS, ABS_MT_PRESSURE, sd->z);
-
- input_mt_sync(input);
- sd->valid = false;
-
- /* touchscreen emulation */
- if (sd->first) {
- if (!sd->activity) {
- input_event(input, EV_KEY, BTN_TOUCH, 1);
- sd->activity = true;
- }
- input_event(input, EV_ABS, ABS_X, sd->x);
- input_event(input, EV_ABS, ABS_Y, sd->y);
- }
- sd->first = false;
-}
-
-
-static int stantum_event(struct hid_device *hid, struct hid_field *field,
- struct hid_usage *usage, __s32 value)
-{
- struct stantum_data *sd = hid_get_drvdata(hid);
-
- if (hid->claimed & HID_CLAIMED_INPUT) {
- struct input_dev *input = field->hidinput->input;
-
- switch (usage->hid) {
- case HID_DG_INRANGE:
- /* this is the last field in a finger */
- stantum_filter_event(sd, input);
- break;
- case HID_DG_WIDTH:
- sd->w = value;
- break;
- case HID_DG_HEIGHT:
- sd->h = value;
- break;
- case HID_GD_X:
- sd->x = value;
- break;
- case HID_GD_Y:
- sd->y = value;
- break;
- case HID_DG_TIPPRESSURE:
- sd->z = value;
- break;
- case HID_DG_CONTACTID:
- sd->id = value;
- break;
- case HID_DG_CONFIDENCE:
- sd->valid = !!value;
- break;
- case 0xff000002:
- /* this comes only before the first finger */
- sd->first = true;
- break;
-
- default:
- /* ignore the others */
- return 1;
- }
- }
-
- /* we have handled the hidinput part, now remains hiddev */
- if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
- hid->hiddev_hid_event(hid, field, usage, value);
-
- return 1;
-}
-
-static int stantum_probe(struct hid_device *hdev,
- const struct hid_device_id *id)
-{
- int ret;
- struct stantum_data *sd;
-
- sd = kmalloc(sizeof(struct stantum_data), GFP_KERNEL);
- if (!sd) {
- hid_err(hdev, "cannot allocate Stantum data\n");
- return -ENOMEM;
- }
- sd->valid = false;
- sd->first = false;
- sd->activity = false;
- hid_set_drvdata(hdev, sd);
-
- ret = hid_parse(hdev);
- if (!ret)
- ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
-
- if (ret)
- kfree(sd);
-
- return ret;
-}
-
-static void stantum_remove(struct hid_device *hdev)
-{
- hid_hw_stop(hdev);
- kfree(hid_get_drvdata(hdev));
- hid_set_drvdata(hdev, NULL);
-}
-
-static const struct hid_device_id stantum_devices[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
- { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
- { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
- { }
-};
-MODULE_DEVICE_TABLE(hid, stantum_devices);
-
-static const struct hid_usage_id stantum_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 stantum_driver = {
- .name = "stantum",
- .id_table = stantum_devices,
- .probe = stantum_probe,
- .remove = stantum_remove,
- .input_mapping = stantum_input_mapping,
- .input_mapped = stantum_input_mapped,
- .usage_table = stantum_grabbed_usages,
- .event = stantum_event,
-};
-
-static int __init stantum_init(void)
-{
- return hid_register_driver(&stantum_driver);
-}
-
-static void __exit stantum_exit(void)
-{
- hid_unregister_driver(&stantum_driver);
-}
-
-module_init(stantum_init);
-module_exit(stantum_exit);
-
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