Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: hid-multitouch: minor fixes based on additional review
  HID: Switch turbox/mosart touchscreen to hid-mosart
  HID: add Add Cando touch screen 10.1-inch product id
  HID: hid-mulitouch: add support for the 'Sensing Win7-TwoFinger'
  HID: hid-multitouch: add support for Cypress TrueTouch panels
  HID: hid-multitouch: support for PixCir-based panels
  HID: set HID_MAX_FIELD at 128
  HID: add feature_mapping callback

10 files changed, 568 insertions, 7 deletions

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index ffbc278647bf..24cca2f69dfc 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -295,6 +295,23 @@ config HID_MONTEREY
         ---help---
         Support for Monterey Genius KB29E.
 
+config HID_MULTITOUCH
+        tristate "HID Multitouch panels"
+        depends on USB_HID
+        ---help---
+          Generic support for HID multitouch panels.
+
+          Say Y here if you have one of the following devices:
+          - Cypress TrueTouch panels
+          - Hanvon dual touch panels
+          - Pixcir dual touch panels
+          - 'Sensing Win7-TwoFinger' panel by GeneralTouch
+
+          If unsure, say N.
+
+          To compile this driver as a module, choose M here: the
+          module will be called hid-multitouch.
+
 config HID_NTRIG
         tristate "N-Trig touch screen"
         depends on USB_HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 6eae9a90b8dd..6efc2a0370ad 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -47,6 +47,7 @@ obj-$(CONFIG_HID_MAGICMOUSE)    += hid-magicmouse.o
 obj-$(CONFIG_HID_MICROSOFT)     += hid-microsoft.o
 obj-$(CONFIG_HID_MONTEREY)      += hid-monterey.o
 obj-$(CONFIG_HID_MOSART)        += hid-mosart.o
+obj-$(CONFIG_HID_MULTITOUCH)    += hid-multitouch.o
 obj-$(CONFIG_HID_NTRIG)         += hid-ntrig.o
 obj-$(CONFIG_HID_ORTEK)         += hid-ortek.o
 obj-$(CONFIG_HID_PRODIKEYS)     += hid-prodikeys.o
diff --git a/drivers/hid/hid-cando.c b/drivers/hid/hid-cando.c
index 375b50929a50..1ea066c55201 100644
--- a/drivers/hid/hid-cando.c
+++ b/drivers/hid/hid-cando.c
@@ -236,6 +236,8 @@ 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) },
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 261168607c91..d678cf3d33d5 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1312,7 +1312,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
         { 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) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
@@ -1324,6 +1326,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
         { 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) },
@@ -1335,11 +1338,13 @@ static const struct hid_device_id hid_have_special_driver[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) },
         { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
@@ -1422,6 +1427,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
         { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
@@ -1640,7 +1646,6 @@ static const struct hid_device_id hid_ignore_list[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
-        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) },
         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index f65cace77729..92a0d61a7379 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -140,7 +140,9 @@
 #define USB_DEVICE_ID_BTC_EMPREX_REMOTE_2       0x5577
 
 #define USB_VENDOR_ID_CANDO             0x2087
+#define USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH 0x0703
 #define USB_DEVICE_ID_CANDO_MULTI_TOUCH 0x0a01
+#define USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1 0x0a02
 #define USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6 0x0b03
 #define USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6 0x0f01
 
@@ -186,6 +188,7 @@
 #define USB_DEVICE_ID_CYPRESS_BARCODE_1 0xde61
 #define USB_DEVICE_ID_CYPRESS_BARCODE_2 0xde64
 #define USB_DEVICE_ID_CYPRESS_BARCODE_3 0xbca1
+#define USB_DEVICE_ID_CYPRESS_TRUETOUCH 0xc001
 
 #define USB_VENDOR_ID_DEALEXTREAME      0x10c5
 #define USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701 0x819a
@@ -236,6 +239,7 @@
 #define USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR  0x0002
 
 #define USB_VENDOR_ID_GENERAL_TOUCH     0x0dfc
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS 0x0001
 
 #define USB_VENDOR_ID_GLAB              0x06c2
 #define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
@@ -318,6 +322,9 @@
 #define USB_DEVICE_ID_HANWANG_TABLET_FIRST      0x5000
 #define USB_DEVICE_ID_HANWANG_TABLET_LAST       0x8fff
 
+#define USB_VENDOR_ID_HANVON            0x20b3
+#define USB_DEVICE_ID_HANVON_MULTITOUCH 0x0a18
+
 #define USB_VENDOR_ID_HAPP              0x078b
 #define USB_DEVICE_ID_UGCI_DRIVING      0x0010
 #define USB_DEVICE_ID_UGCI_FLYING       0x0020
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index e60fdb88101f..7f552bfad32c 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -290,6 +290,14 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                 goto ignore;
         }
 
+        if (field->report_type == HID_FEATURE_REPORT) {
+                if (device->driver->feature_mapping) {
+                        device->driver->feature_mapping(device, hidinput, field,
+                                usage);
+                }
+                goto ignore;
+        }
+
         if (device->driver->input_mapping) {
                 int ret = device->driver->input_mapping(device, hidinput, field,
                                 usage, &bit, &max);
@@ -839,7 +847,6 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
         struct hid_input *hidinput = NULL;
         struct input_dev *input_dev;
         int i, j, k;
-        int max_report_type = HID_OUTPUT_REPORT;
 
         INIT_LIST_HEAD(&hid->inputs);
 
@@ -856,10 +863,11 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
                         return -1;
         }
 
-        if (hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
-                max_report_type = HID_INPUT_REPORT;
+        for (k = HID_INPUT_REPORT; k <= HID_FEATURE_REPORT; k++) {
+                if (k == HID_OUTPUT_REPORT &&
+                        hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
+                        continue;
 
-        for (k = HID_INPUT_REPORT; k <= max_report_type; k++)
                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 
                         if (!report->maxfield)
@@ -912,6 +920,7 @@ int hidinput_connect(struct hid_device *hid, unsigned int force)
                                 hidinput = NULL;
                         }
                 }
+        }
 
         if (hidinput && input_register_device(hidinput->input))
                 goto out_cleanup;
diff --git a/drivers/hid/hid-mosart.c b/drivers/hid/hid-mosart.c
index 9fb050ce6f04..aed7ffe36283 100644
--- a/drivers/hid/hid-mosart.c
+++ b/drivers/hid/hid-mosart.c
@@ -257,6 +257,7 @@ static void mosart_remove(struct hid_device *hdev)
 static const struct hid_device_id mosart_devices[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
         { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
         { }
 };
 MODULE_DEVICE_TABLE(hid, mosart_devices);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
new file mode 100644
index 000000000000..07d3183fdde5
--- /dev/null
+++ b/drivers/hid/hid-multitouch.c
@@ -0,0 +1,516 @@
+/*
+ *  HID driver for multitouch panels
+ *
+ *  Copyright (c) 2010-2011 Stephane Chatty <chatty@enac.fr>
+ *  Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+ *  Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France
+ *
+ */
+
+/*
+ * 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>
+#include "usbhid/usbhid.h"
+
+
+MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
+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_VALID_IS_INRANGE       (1 << 4)
+#define MT_QUIRK_VALID_IS_CONFIDENCE    (1 << 5)
+
+struct mt_slot {
+        __s32 x, y, p, w, h;
+        __s32 contactid;        /* the device ContactID assigned to this slot */
+        bool touch_state;       /* is the touch valid? */
+        bool seen_in_this_frame;/* has this slot been updated */
+};
+
+struct mt_device {
+        struct mt_slot curdata; /* placeholder of incoming data */
+        struct mt_class *mtclass;       /* our mt device class */
+        unsigned last_field_index;      /* last field index of the report */
+        unsigned last_slot_field;       /* the last field of a slot */
+        __s8 inputmode;         /* InputMode HID feature, -1 if non-existent */
+        __u8 num_received;      /* how many contacts we received */
+        __u8 num_expected;      /* expected last contact index */
+        bool curvalid;          /* is the current contact valid? */
+        struct mt_slot slots[0];        /* first slot */
+};
+
+struct mt_class {
+        __s32 name;     /* MT_CLS */
+        __s32 quirks;
+        __s32 sn_move;  /* Signal/noise ratio for move events */
+        __s32 sn_pressure;      /* Signal/noise ratio for pressure events */
+        __u8 maxcontacts;
+};
+
+/* classes of device behavior */
+#define MT_CLS_DEFAULT  1
+#define MT_CLS_DUAL1    2
+#define MT_CLS_DUAL2    3
+#define MT_CLS_CYPRESS  4
+
+/*
+ * 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 int find_slot_from_contactid(struct mt_device *td)
+{
+        int i;
+        for (i = 0; i < td->mtclass->maxcontacts; ++i) {
+                if (td->slots[i].contactid == td->curdata.contactid &&
+                        td->slots[i].touch_state)
+                        return i;
+        }
+        for (i = 0; i < td->mtclass->maxcontacts; ++i) {
+                if (!td->slots[i].seen_in_this_frame &&
+                        !td->slots[i].touch_state)
+                        return i;
+        }
+        /* should not occurs. If this happens that means
+         * that the device sent more touches that it says
+         * in the report descriptor. It is ignored then. */
+        return -1;
+}
+
+struct mt_class mt_classes[] = {
+        { .name = MT_CLS_DEFAULT,
+                .quirks = MT_QUIRK_VALID_IS_INRANGE,
+                .maxcontacts = 10 },
+        { .name = MT_CLS_DUAL1,
+                .quirks = MT_QUIRK_VALID_IS_INRANGE |
+                        MT_QUIRK_SLOT_IS_CONTACTID,
+                .maxcontacts = 2 },
+        { .name = MT_CLS_DUAL2,
+                .quirks = MT_QUIRK_VALID_IS_INRANGE |
+                        MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+                .maxcontacts = 2 },
+        { .name = MT_CLS_CYPRESS,
+                .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
+                        MT_QUIRK_CYPRESS,
+                .maxcontacts = 10 },
+
+        { }
+};
+
+static void mt_feature_mapping(struct hid_device *hdev, struct hid_input *hi,
+                struct hid_field *field, struct hid_usage *usage)
+{
+        if (usage->hid == HID_DG_INPUTMODE) {
+                struct mt_device *td = hid_get_drvdata(hdev);
+                td->inputmode = field->report->id;
+        }
+}
+
+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 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_class *cls = td->mtclass;
+        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);
+                        set_abs(hi->input, ABS_MT_POSITION_X, field,
+                                cls->sn_move);
+                        /* touchscreen emulation */
+                        set_abs(hi->input, ABS_X, field, cls->sn_move);
+                        td->last_slot_field = usage->hid;
+                        return 1;
+                case HID_GD_Y:
+                        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);
+                        /* touchscreen emulation */
+                        set_abs(hi->input, ABS_Y, field, cls->sn_move);
+                        td->last_slot_field = usage->hid;
+                        return 1;
+                }
+                return 0;
+
+        case HID_UP_DIGITIZER:
+                switch (usage->hid) {
+                case HID_DG_INRANGE:
+                        td->last_slot_field = usage->hid;
+                        return 1;
+                case HID_DG_CONFIDENCE:
+                        td->last_slot_field = usage->hid;
+                        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);
+                        td->last_slot_field = usage->hid;
+                        return 1;
+                case HID_DG_CONTACTID:
+                        input_mt_init_slots(hi->input,
+                                        td->mtclass->maxcontacts);
+                        td->last_slot_field = usage->hid;
+                        return 1;
+                case HID_DG_WIDTH:
+                        hid_map_usage(hi, usage, bit, max,
+                                        EV_ABS, ABS_MT_TOUCH_MAJOR);
+                        td->last_slot_field = usage->hid;
+                        return 1;
+                case HID_DG_HEIGHT:
+                        hid_map_usage(hi, usage, bit, max,
+                                        EV_ABS, ABS_MT_TOUCH_MINOR);
+                        field->logical_maximum = 1;
+                        field->logical_minimum = 0;
+                        set_abs(hi->input, ABS_MT_ORIENTATION, field, 0);
+                        td->last_slot_field = usage->hid;
+                        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);
+                        /* touchscreen emulation */
+                        set_abs(hi->input, ABS_PRESSURE, field,
+                                cls->sn_pressure);
+                        td->last_slot_field = usage->hid;
+                        return 1;
+                case HID_DG_CONTACTCOUNT:
+                        td->last_field_index = field->report->maxfield - 1;
+                        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;
+                }
+                /* 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 mt_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)
+{
+        __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;
+
+        return find_slot_from_contactid(td);
+}
+
+/*
+ * 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)
+{
+        td->curdata.seen_in_this_frame = true;
+        if (td->curvalid) {
+                int slotnum = mt_compute_slot(td);
+
+                if (slotnum >= 0 && slotnum < td->mtclass->maxcontacts)
+                        td->slots[slotnum] = td->curdata;
+        }
+        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_emit_event(struct mt_device *td, struct input_dev *input)
+{
+        int i;
+
+        for (i = 0; i < td->mtclass->maxcontacts; ++i) {
+                struct mt_slot *s = &(td->slots[i]);
+                if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
+                        !s->seen_in_this_frame) {
+                        s->touch_state = false;
+                }
+
+                input_mt_slot(input, i);
+                input_mt_report_slot_state(input, MT_TOOL_FINGER,
+                        s->touch_state);
+                if (s->touch_state) {
+                        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_PRESSURE, s->p);
+                        input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, s->w);
+                        input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, s->h);
+                }
+                s->seen_in_this_frame = false;
+
+        }
+
+        input_mt_report_pointer_emulation(input, true);
+        input_sync(input);
+        td->num_received = 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);
+        __s32 quirks = td->mtclass->quirks;
+
+        if (hid->claimed & HID_CLAIMED_INPUT) {
+                switch (usage->hid) {
+                case HID_DG_INRANGE:
+                        if (quirks & MT_QUIRK_VALID_IS_INRANGE)
+                                td->curvalid = 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:
+                        td->curdata.x = value;
+                        break;
+                case HID_GD_Y:
+                        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:
+                        /*
+                         * Includes multi-packet support where subsequent
+                         * packets are sent with zero contactcount.
+                         */
+                        if (value)
+                                td->num_expected = value;
+                        break;
+
+                default:
+                        /* fallback to the generic hidinput handling */
+                        return 0;
+                }
+
+                if (usage->hid == td->last_slot_field)
+                        mt_complete_slot(td);
+
+                if (field->index == td->last_field_index
+                        && td->num_received >= td->num_expected)
+                        mt_emit_event(td, field->hidinput->input);
+
+        }
+
+        /* 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 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;
+
+        if (td->inputmode < 0)
+                return;
+
+        re = &(hdev->report_enum[HID_FEATURE_REPORT]);
+        r = re->report_id_hash[td->inputmode];
+        if (r) {
+                r->field[0]->value[0] = 0x02;
+                usbhid_submit_report(hdev, r, USB_DIR_OUT);
+        }
+}
+
+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;
+
+        td = kzalloc(sizeof(struct mt_device) +
+                                mtclass->maxcontacts * sizeof(struct mt_slot),
+                                GFP_KERNEL);
+        if (!td) {
+                dev_err(&hdev->dev, "cannot allocate multitouch data\n");
+                return -ENOMEM;
+        }
+        td->mtclass = mtclass;
+        td->inputmode = -1;
+        hid_set_drvdata(hdev, td);
+
+        ret = hid_parse(hdev);
+        if (ret != 0)
+                goto fail;
+
+        ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+        if (ret)
+                goto fail;
+
+        mt_set_input_mode(hdev);
+
+        return 0;
+
+fail:
+        kfree(td);
+        return ret;
+}
+
+#ifdef CONFIG_PM
+static int mt_reset_resume(struct hid_device *hdev)
+{
+        mt_set_input_mode(hdev);
+        return 0;
+}
+#endif
+
+static void mt_remove(struct hid_device *hdev)
+{
+        struct mt_device *td = hid_get_drvdata(hdev);
+        hid_hw_stop(hdev);
+        kfree(td);
+        hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id mt_devices[] = {
+
+        /* Cypress panel */
+        { .driver_data = MT_CLS_CYPRESS,
+                HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS,
+                        USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
+
+        /* GeneralTouch panel */
+        { .driver_data = MT_CLS_DUAL2,
+                HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+                        USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
+
+        /* PixCir-based panels */
+        { .driver_data = MT_CLS_DUAL1,
+                HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
+                        USB_DEVICE_ID_HANVON_MULTITOUCH) },
+        { .driver_data = MT_CLS_DUAL1,
+                HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
+                        USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
+
+        { }
+};
+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,
+        .feature_mapping = mt_feature_mapping,
+        .usage_table = mt_grabbed_usages,
+        .event = mt_event,
+#ifdef CONFIG_PM
+        .reset_resume = mt_reset_resume,
+#endif
+};
+
+static int __init mt_init(void)
+{
+        return hid_register_driver(&mt_driver);
+}
+
+static void __exit mt_exit(void)
+{
+        hid_unregister_driver(&mt_driver);
+}
+
+module_init(mt_init);
+module_exit(mt_exit);
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 76b9a149c7df..9a94b643ccde 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -35,7 +35,6 @@ static const struct hid_blacklist {
         { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
         { USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER, HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET },
         { USB_VENDOR_ID_MOJO, USB_DEVICE_ID_RETRO_ADAPTER, HID_QUIRK_MULTI_INPUT },
-        { USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART, HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
         { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 20b9801f669b..d91c25e253c8 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -402,7 +402,7 @@ struct hid_field {
         __u16 dpad;                     /* dpad input code */
 };
 
-#define HID_MAX_FIELDS 64
+#define HID_MAX_FIELDS 128
 
 struct hid_report {
         struct list_head list;
@@ -593,6 +593,7 @@ struct hid_usage_id {
  * @report_fixup: called before report descriptor parsing (NULL means nop)
  * @input_mapping: invoked on input registering before mapping an usage
  * @input_mapped: invoked on input registering after mapping an usage
+ * @feature_mapping: invoked on feature registering
  * @suspend: invoked on suspend (NULL means nop)
  * @resume: invoked on resume if device was not reset (NULL means nop)
  * @reset_resume: invoked on resume if device was reset (NULL means nop)
@@ -636,6 +637,9 @@ struct hid_driver {
         int (*input_mapped)(struct hid_device *hdev,
                         struct hid_input *hidinput, struct hid_field *field,
                         struct hid_usage *usage, unsigned long **bit, int *max);
+        void (*feature_mapping)(struct hid_device *hdev,
+                        struct hid_input *hidinput, struct hid_field *field,
+                        struct hid_usage *usage);
 #ifdef CONFIG_PM
         int (*suspend)(struct hid_device *hdev, pm_message_t message);
         int (*resume)(struct hid_device *hdev);