HID: uclogic: merge hid-huion driver in hid-uclogic
authorNikolai Kondrashov <Nikolai.Kondrashov@redhat.com>
Tue, 3 Mar 2015 17:44:01 +0000 (12:44 -0500)
committerJiri Kosina <jkosina@suse.cz>
Tue, 3 Mar 2015 20:31:54 +0000 (21:31 +0100)
Merge the hid-huion driver into hid-uclogic as all the devices supported
by hid-huion are in fact UC-Logic devices.

Signed-off-by: Nikolai Kondrashov <Nikolai.Kondrashov@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/Kconfig
drivers/hid/Makefile
drivers/hid/hid-huion.c [deleted file]
drivers/hid/hid-uclogic.c

index 152b006833cda2518614f80b4cac15b518b0ef0b..8a55fd7f1fe30368a4a664c5bc48926c50b43552 100644 (file)
@@ -286,12 +286,6 @@ config HID_GT683R
        Currently the following devices are know to be supported:
          - MSI GT683R
 
-config HID_HUION
-       tristate "Huion tablets"
-       depends on USB_HID
-       ---help---
-       Support for Huion 580 tablet.
-
 config HID_KEYTOUCH
        tristate "Keytouch HID devices"
        depends on HID
@@ -314,7 +308,7 @@ config HID_UCLOGIC
        tristate "UC-Logic"
        depends on HID
        ---help---
-       Support for UC-Logic tablets.
+       Support for UC-Logic and Huion tablets.
 
 config HID_WALTOP
        tristate "Waltop"
index 6f19958dfc3876f26bed994e508f1e8845b69b4f..9c399fe394fa9cea422a450d24560e441c75d1c1 100644 (file)
@@ -41,7 +41,6 @@ obj-$(CONFIG_HID_GYRATION)    += hid-gyration.o
 obj-$(CONFIG_HID_HOLTEK)       += hid-holtek-kbd.o
 obj-$(CONFIG_HID_HOLTEK)       += hid-holtek-mouse.o
 obj-$(CONFIG_HID_HOLTEK)       += hid-holtekff.o
-obj-$(CONFIG_HID_HUION)                += hid-huion.o
 obj-$(CONFIG_HID_HYPERV_MOUSE) += hid-hyperv.o
 obj-$(CONFIG_HID_ICADE)                += hid-icade.o
 obj-$(CONFIG_HID_KENSINGTON)   += hid-kensington.o
diff --git a/drivers/hid/hid-huion.c b/drivers/hid/hid-huion.c
deleted file mode 100644 (file)
index 61b68ca..0000000
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- *  HID driver for Huion devices not fully compliant with HID standard
- *
- *  Copyright (c) 2013 Martin Rusko
- *  Copyright (c) 2014 Nikolai Kondrashov
- */
-
-/*
- * 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 <asm/unaligned.h>
-#include "usbhid/usbhid.h"
-
-#include "hid-ids.h"
-
-/* Report descriptor template placeholder head */
-#define HUION_PH_HEAD  0xFE, 0xED, 0x1D
-
-/* Report descriptor template placeholder IDs */
-enum huion_ph_id {
-       HUION_PH_ID_X_LM,
-       HUION_PH_ID_X_PM,
-       HUION_PH_ID_Y_LM,
-       HUION_PH_ID_Y_PM,
-       HUION_PH_ID_PRESSURE_LM,
-       HUION_PH_ID_NUM
-};
-
-/* Report descriptor template placeholder */
-#define HUION_PH(_ID) HUION_PH_HEAD, HUION_PH_ID_##_ID
-
-/* Fixed report descriptor template */
-static const __u8 huion_tablet_rdesc_template[] = {
-       0x05, 0x0D,             /*  Usage Page (Digitizer),                 */
-       0x09, 0x02,             /*  Usage (Pen),                            */
-       0xA1, 0x01,             /*  Collection (Application),               */
-       0x85, 0x07,             /*      Report ID (7),                      */
-       0x09, 0x20,             /*      Usage (Stylus),                     */
-       0xA0,                   /*      Collection (Physical),              */
-       0x14,                   /*          Logical Minimum (0),            */
-       0x25, 0x01,             /*          Logical Maximum (1),            */
-       0x75, 0x01,             /*          Report Size (1),                */
-       0x09, 0x42,             /*          Usage (Tip Switch),             */
-       0x09, 0x44,             /*          Usage (Barrel Switch),          */
-       0x09, 0x46,             /*          Usage (Tablet Pick),            */
-       0x95, 0x03,             /*          Report Count (3),               */
-       0x81, 0x02,             /*          Input (Variable),               */
-       0x95, 0x03,             /*          Report Count (3),               */
-       0x81, 0x03,             /*          Input (Constant, Variable),     */
-       0x09, 0x32,             /*          Usage (In Range),               */
-       0x95, 0x01,             /*          Report Count (1),               */
-       0x81, 0x02,             /*          Input (Variable),               */
-       0x95, 0x01,             /*          Report Count (1),               */
-       0x81, 0x03,             /*          Input (Constant, Variable),     */
-       0x75, 0x10,             /*          Report Size (16),               */
-       0x95, 0x01,             /*          Report Count (1),               */
-       0xA4,                   /*          Push,                           */
-       0x05, 0x01,             /*          Usage Page (Desktop),           */
-       0x65, 0x13,             /*          Unit (Inch),                    */
-       0x55, 0xFD,             /*          Unit Exponent (-3),             */
-       0x34,                   /*          Physical Minimum (0),           */
-       0x09, 0x30,             /*          Usage (X),                      */
-       0x27, HUION_PH(X_LM),   /*          Logical Maximum (PLACEHOLDER),  */
-       0x47, HUION_PH(X_PM),   /*          Physical Maximum (PLACEHOLDER), */
-       0x81, 0x02,             /*          Input (Variable),               */
-       0x09, 0x31,             /*          Usage (Y),                      */
-       0x27, HUION_PH(Y_LM),   /*          Logical Maximum (PLACEHOLDER),  */
-       0x47, HUION_PH(Y_PM),   /*          Physical Maximum (PLACEHOLDER), */
-       0x81, 0x02,             /*          Input (Variable),               */
-       0xB4,                   /*          Pop,                            */
-       0x09, 0x30,             /*          Usage (Tip Pressure),           */
-       0x27,
-       HUION_PH(PRESSURE_LM),  /*          Logical Maximum (PLACEHOLDER),  */
-       0x81, 0x02,             /*          Input (Variable),               */
-       0xC0,                   /*      End Collection,                     */
-       0xC0                    /*  End Collection                          */
-};
-
-/* Parameter indices */
-enum huion_prm {
-       HUION_PRM_X_LM          = 1,
-       HUION_PRM_Y_LM          = 2,
-       HUION_PRM_PRESSURE_LM   = 4,
-       HUION_PRM_RESOLUTION    = 5,
-       HUION_PRM_NUM
-};
-
-/* Driver data */
-struct huion_drvdata {
-       __u8 *rdesc;
-       unsigned int rsize;
-};
-
-static __u8 *huion_report_fixup(struct hid_device *hdev, __u8 *rdesc,
-               unsigned int *rsize)
-{
-       struct huion_drvdata *drvdata = hid_get_drvdata(hdev);
-       switch (hdev->product) {
-       case USB_DEVICE_ID_HUION_TABLET:
-               if (drvdata->rdesc != NULL) {
-                       rdesc = drvdata->rdesc;
-                       *rsize = drvdata->rsize;
-               }
-               break;
-       }
-       return rdesc;
-}
-
-/**
- * Enable fully-functional tablet mode and determine device parameters.
- *
- * @hdev:      HID device
- */
-static int huion_tablet_enable(struct hid_device *hdev)
-{
-       int rc;
-       struct usb_device *usb_dev = hid_to_usb_dev(hdev);
-       struct huion_drvdata *drvdata = hid_get_drvdata(hdev);
-       __le16 *buf = NULL;
-       size_t len;
-       s32 params[HUION_PH_ID_NUM];
-       s32 resolution;
-       __u8 *p;
-       s32 v;
-
-       /*
-        * Read string descriptor containing tablet parameters. The specific
-        * string descriptor and data were discovered by sniffing the Windows
-        * driver traffic.
-        * NOTE: This enables fully-functional tablet mode.
-        */
-       len = HUION_PRM_NUM * sizeof(*buf);
-       buf = kmalloc(len, GFP_KERNEL);
-       if (buf == NULL) {
-               hid_err(hdev, "failed to allocate parameter buffer\n");
-               rc = -ENOMEM;
-               goto cleanup;
-       }
-       rc = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
-                               USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
-                               (USB_DT_STRING << 8) + 0x64,
-                               0x0409, buf, len,
-                               USB_CTRL_GET_TIMEOUT);
-       if (rc == -EPIPE) {
-               hid_err(hdev, "device parameters not found\n");
-               rc = -ENODEV;
-               goto cleanup;
-       } else if (rc < 0) {
-               hid_err(hdev, "failed to get device parameters: %d\n", rc);
-               rc = -ENODEV;
-               goto cleanup;
-       } else if (rc != len) {
-               hid_err(hdev, "invalid device parameters\n");
-               rc = -ENODEV;
-               goto cleanup;
-       }
-
-       /* Extract device parameters */
-       params[HUION_PH_ID_X_LM] = le16_to_cpu(buf[HUION_PRM_X_LM]);
-       params[HUION_PH_ID_Y_LM] = le16_to_cpu(buf[HUION_PRM_Y_LM]);
-       params[HUION_PH_ID_PRESSURE_LM] =
-               le16_to_cpu(buf[HUION_PRM_PRESSURE_LM]);
-       resolution = le16_to_cpu(buf[HUION_PRM_RESOLUTION]);
-       if (resolution == 0) {
-               params[HUION_PH_ID_X_PM] = 0;
-               params[HUION_PH_ID_Y_PM] = 0;
-       } else {
-               params[HUION_PH_ID_X_PM] = params[HUION_PH_ID_X_LM] *
-                                               1000 / resolution;
-               params[HUION_PH_ID_Y_PM] = params[HUION_PH_ID_Y_LM] *
-                                               1000 / resolution;
-       }
-
-       /* Allocate fixed report descriptor */
-       drvdata->rdesc = devm_kmalloc(&hdev->dev,
-                               sizeof(huion_tablet_rdesc_template),
-                               GFP_KERNEL);
-       if (drvdata->rdesc == NULL) {
-               hid_err(hdev, "failed to allocate fixed rdesc\n");
-               rc = -ENOMEM;
-               goto cleanup;
-       }
-       drvdata->rsize = sizeof(huion_tablet_rdesc_template);
-
-       /* Format fixed report descriptor */
-       memcpy(drvdata->rdesc, huion_tablet_rdesc_template,
-               drvdata->rsize);
-       for (p = drvdata->rdesc;
-            p <= drvdata->rdesc + drvdata->rsize - 4;) {
-               if (p[0] == 0xFE && p[1] == 0xED && p[2] == 0x1D &&
-                   p[3] < sizeof(params)) {
-                       v = params[p[3]];
-                       put_unaligned(cpu_to_le32(v), (s32 *)p);
-                       p += 4;
-               } else {
-                       p++;
-               }
-       }
-
-       rc = 0;
-
-cleanup:
-       kfree(buf);
-       return rc;
-}
-
-static int huion_probe(struct hid_device *hdev, const struct hid_device_id *id)
-{
-       int rc;
-       struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-       struct huion_drvdata *drvdata;
-
-       /* Allocate and assign driver data */
-       drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
-       if (drvdata == NULL) {
-               hid_err(hdev, "failed to allocate driver data\n");
-               return -ENOMEM;
-       }
-       hid_set_drvdata(hdev, drvdata);
-
-       switch (id->product) {
-       case USB_DEVICE_ID_HUION_TABLET:
-               /* If this is the pen interface */
-               if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
-                       rc = huion_tablet_enable(hdev);
-                       if (rc) {
-                               hid_err(hdev, "tablet enabling failed\n");
-                               return rc;
-                       }
-               }
-               break;
-       }
-
-       rc = hid_parse(hdev);
-       if (rc) {
-               hid_err(hdev, "parse failed\n");
-               return rc;
-       }
-
-       rc = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
-       if (rc) {
-               hid_err(hdev, "hw start failed\n");
-               return rc;
-       }
-
-       return 0;
-}
-
-static int huion_raw_event(struct hid_device *hdev, struct hid_report *report,
-                       u8 *data, int size)
-{
-       struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-
-       /* If this is a pen input report */
-       if (intf->cur_altsetting->desc.bInterfaceNumber == 0 &&
-           report->type == HID_INPUT_REPORT &&
-           report->id == 0x07 && size >= 2)
-               /* Invert the in-range bit */
-               data[1] ^= 0x40;
-
-       return 0;
-}
-
-static const struct hid_device_id huion_devices[] = {
-       { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },
-       { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_HUION_TABLET) },
-       { }
-};
-MODULE_DEVICE_TABLE(hid, huion_devices);
-
-static struct hid_driver huion_driver = {
-       .name = "huion",
-       .id_table = huion_devices,
-       .probe = huion_probe,
-       .report_fixup = huion_report_fixup,
-       .raw_event = huion_raw_event,
-};
-module_hid_driver(huion_driver);
-
-MODULE_AUTHOR("Martin Rusko");
-MODULE_DESCRIPTION("Huion HID driver");
-MODULE_LICENSE("GPL");
index 22dccce6a85c65a42f5d31a05fd3b18c546630a4..397f1df05d8b2e10c37af838c9ce31c156a23861 100644 (file)
@@ -1,7 +1,8 @@
 /*
  *  HID driver for UC-Logic devices not fully compliant with HID standard
  *
- *  Copyright (c) 2010 Nikolai Kondrashov
+ *  Copyright (c) 2010-2014 Nikolai Kondrashov
+ *  Copyright (c) 2013 Martin Rusko
  */
 
 /*
@@ -15,6 +16,8 @@
 #include <linux/hid.h>
 #include <linux/module.h>
 #include <linux/usb.h>
+#include <asm/unaligned.h>
+#include "usbhid/usbhid.h"
 
 #include "hid-ids.h"
 
@@ -546,11 +549,90 @@ static __u8 twha60_rdesc_fixed1[] = {
        0xC0        /*  End Collection              */
 };
 
+/* Report descriptor template placeholder head */
+#define UCLOGIC_PH_HEAD        0xFE, 0xED, 0x1D
+
+/* Report descriptor template placeholder IDs */
+enum uclogic_ph_id {
+       UCLOGIC_PH_ID_X_LM,
+       UCLOGIC_PH_ID_X_PM,
+       UCLOGIC_PH_ID_Y_LM,
+       UCLOGIC_PH_ID_Y_PM,
+       UCLOGIC_PH_ID_PRESSURE_LM,
+       UCLOGIC_PH_ID_NUM
+};
+
+/* Report descriptor template placeholder */
+#define UCLOGIC_PH(_ID) UCLOGIC_PH_HEAD, UCLOGIC_PH_ID_##_ID
+
+/* Fixed report descriptor template */
+static const __u8 uclogic_tablet_rdesc_template[] = {
+       0x05, 0x0D,             /*  Usage Page (Digitizer),                 */
+       0x09, 0x02,             /*  Usage (Pen),                            */
+       0xA1, 0x01,             /*  Collection (Application),               */
+       0x85, 0x07,             /*      Report ID (7),                      */
+       0x09, 0x20,             /*      Usage (Stylus),                     */
+       0xA0,                   /*      Collection (Physical),              */
+       0x14,                   /*          Logical Minimum (0),            */
+       0x25, 0x01,             /*          Logical Maximum (1),            */
+       0x75, 0x01,             /*          Report Size (1),                */
+       0x09, 0x42,             /*          Usage (Tip Switch),             */
+       0x09, 0x44,             /*          Usage (Barrel Switch),          */
+       0x09, 0x46,             /*          Usage (Tablet Pick),            */
+       0x95, 0x03,             /*          Report Count (3),               */
+       0x81, 0x02,             /*          Input (Variable),               */
+       0x95, 0x03,             /*          Report Count (3),               */
+       0x81, 0x03,             /*          Input (Constant, Variable),     */
+       0x09, 0x32,             /*          Usage (In Range),               */
+       0x95, 0x01,             /*          Report Count (1),               */
+       0x81, 0x02,             /*          Input (Variable),               */
+       0x95, 0x01,             /*          Report Count (1),               */
+       0x81, 0x03,             /*          Input (Constant, Variable),     */
+       0x75, 0x10,             /*          Report Size (16),               */
+       0x95, 0x01,             /*          Report Count (1),               */
+       0xA4,                   /*          Push,                           */
+       0x05, 0x01,             /*          Usage Page (Desktop),           */
+       0x65, 0x13,             /*          Unit (Inch),                    */
+       0x55, 0xFD,             /*          Unit Exponent (-3),             */
+       0x34,                   /*          Physical Minimum (0),           */
+       0x09, 0x30,             /*          Usage (X),                      */
+       0x27, UCLOGIC_PH(X_LM), /*          Logical Maximum (PLACEHOLDER),  */
+       0x47, UCLOGIC_PH(X_PM), /*          Physical Maximum (PLACEHOLDER), */
+       0x81, 0x02,             /*          Input (Variable),               */
+       0x09, 0x31,             /*          Usage (Y),                      */
+       0x27, UCLOGIC_PH(Y_LM), /*          Logical Maximum (PLACEHOLDER),  */
+       0x47, UCLOGIC_PH(Y_PM), /*          Physical Maximum (PLACEHOLDER), */
+       0x81, 0x02,             /*          Input (Variable),               */
+       0xB4,                   /*          Pop,                            */
+       0x09, 0x30,             /*          Usage (Tip Pressure),           */
+       0x27,
+       UCLOGIC_PH(PRESSURE_LM),/*          Logical Maximum (PLACEHOLDER),  */
+       0x81, 0x02,             /*          Input (Variable),               */
+       0xC0,                   /*      End Collection,                     */
+       0xC0                    /*  End Collection                          */
+};
+
+/* Parameter indices */
+enum uclogic_prm {
+       UCLOGIC_PRM_X_LM        = 1,
+       UCLOGIC_PRM_Y_LM        = 2,
+       UCLOGIC_PRM_PRESSURE_LM = 4,
+       UCLOGIC_PRM_RESOLUTION  = 5,
+       UCLOGIC_PRM_NUM
+};
+
+/* Driver data */
+struct uclogic_drvdata {
+       __u8 *rdesc;
+       unsigned int rsize;
+};
+
 static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                                        unsigned int *rsize)
 {
        struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
        __u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
+       struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
 
        switch (hdev->product) {
        case USB_DEVICE_ID_UCLOGIC_TABLET_PF1209:
@@ -621,15 +703,120 @@ static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
                        break;
                }
                break;
+       default:
+               if (drvdata->rdesc != NULL) {
+                       rdesc = drvdata->rdesc;
+                       *rsize = drvdata->rsize;
+               }
        }
 
        return rdesc;
 }
 
+/**
+ * Enable fully-functional tablet mode and determine device parameters.
+ *
+ * @hdev:      HID device
+ */
+static int uclogic_tablet_enable(struct hid_device *hdev)
+{
+       int rc;
+       struct usb_device *usb_dev = hid_to_usb_dev(hdev);
+       struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
+       __le16 *buf = NULL;
+       size_t len;
+       s32 params[UCLOGIC_PH_ID_NUM];
+       s32 resolution;
+       __u8 *p;
+       s32 v;
+
+       /*
+        * Read string descriptor containing tablet parameters. The specific
+        * string descriptor and data were discovered by sniffing the Windows
+        * driver traffic.
+        * NOTE: This enables fully-functional tablet mode.
+        */
+       len = UCLOGIC_PRM_NUM * sizeof(*buf);
+       buf = kmalloc(len, GFP_KERNEL);
+       if (buf == NULL) {
+               hid_err(hdev, "failed to allocate parameter buffer\n");
+               rc = -ENOMEM;
+               goto cleanup;
+       }
+       rc = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
+                               USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
+                               (USB_DT_STRING << 8) + 0x64,
+                               0x0409, buf, len,
+                               USB_CTRL_GET_TIMEOUT);
+       if (rc == -EPIPE) {
+               hid_err(hdev, "device parameters not found\n");
+               rc = -ENODEV;
+               goto cleanup;
+       } else if (rc < 0) {
+               hid_err(hdev, "failed to get device parameters: %d\n", rc);
+               rc = -ENODEV;
+               goto cleanup;
+       } else if (rc != len) {
+               hid_err(hdev, "invalid device parameters\n");
+               rc = -ENODEV;
+               goto cleanup;
+       }
+
+       /* Extract device parameters */
+       params[UCLOGIC_PH_ID_X_LM] = le16_to_cpu(buf[UCLOGIC_PRM_X_LM]);
+       params[UCLOGIC_PH_ID_Y_LM] = le16_to_cpu(buf[UCLOGIC_PRM_Y_LM]);
+       params[UCLOGIC_PH_ID_PRESSURE_LM] =
+               le16_to_cpu(buf[UCLOGIC_PRM_PRESSURE_LM]);
+       resolution = le16_to_cpu(buf[UCLOGIC_PRM_RESOLUTION]);
+       if (resolution == 0) {
+               params[UCLOGIC_PH_ID_X_PM] = 0;
+               params[UCLOGIC_PH_ID_Y_PM] = 0;
+       } else {
+               params[UCLOGIC_PH_ID_X_PM] = params[UCLOGIC_PH_ID_X_LM] *
+                                               1000 / resolution;
+               params[UCLOGIC_PH_ID_Y_PM] = params[UCLOGIC_PH_ID_Y_LM] *
+                                               1000 / resolution;
+       }
+
+       /* Allocate fixed report descriptor */
+       drvdata->rdesc = devm_kzalloc(&hdev->dev,
+                               sizeof(uclogic_tablet_rdesc_template),
+                               GFP_KERNEL);
+       if (drvdata->rdesc == NULL) {
+               hid_err(hdev, "failed to allocate fixed rdesc\n");
+               rc = -ENOMEM;
+               goto cleanup;
+       }
+       drvdata->rsize = sizeof(uclogic_tablet_rdesc_template);
+
+       /* Format fixed report descriptor */
+       memcpy(drvdata->rdesc, uclogic_tablet_rdesc_template,
+               drvdata->rsize);
+       for (p = drvdata->rdesc;
+            p <= drvdata->rdesc + drvdata->rsize - 4;) {
+               if (p[0] == 0xFE && p[1] == 0xED && p[2] == 0x1D &&
+                   p[3] < sizeof(params)) {
+                       v = params[p[3]];
+                       put_unaligned(cpu_to_le32(v), (s32 *)p);
+                       p += 4;
+               } else {
+                       p++;
+               }
+       }
+
+       rc = 0;
+
+cleanup:
+       kfree(buf);
+       return rc;
+}
+
 static int uclogic_probe(struct hid_device *hdev,
                const struct hid_device_id *id)
 {
        int rc;
+       struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+       struct uclogic_drvdata *drvdata;
 
        /*
         * libinput requires the pad interface to be on a different node
@@ -637,6 +824,26 @@ static int uclogic_probe(struct hid_device *hdev,
         */
        hdev->quirks |= HID_QUIRK_MULTI_INPUT;
 
+       /* Allocate and assign driver data */
+       drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
+       if (drvdata == NULL)
+               return -ENOMEM;
+
+       hid_set_drvdata(hdev, drvdata);
+
+       switch (id->product) {
+       case USB_DEVICE_ID_HUION_TABLET:
+               /* If this is the pen interface */
+               if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
+                       rc = uclogic_tablet_enable(hdev);
+                       if (rc) {
+                               hid_err(hdev, "tablet enabling failed\n");
+                               return rc;
+                       }
+               }
+               break;
+       }
+
        rc = hid_parse(hdev);
        if (rc) {
                hid_err(hdev, "parse failed\n");
@@ -652,6 +859,21 @@ static int uclogic_probe(struct hid_device *hdev,
        return 0;
 }
 
+static int uclogic_raw_event(struct hid_device *hdev, struct hid_report *report,
+                       u8 *data, int size)
+{
+       struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+
+       /* If this is a pen input report */
+       if (intf->cur_altsetting->desc.bInterfaceNumber == 0 &&
+           report->type == HID_INPUT_REPORT &&
+           report->id == 0x07 && size >= 2)
+               /* Invert the in-range bit */
+               data[1] ^= 0x40;
+
+       return 0;
+}
+
 static const struct hid_device_id uclogic_devices[] = {
        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
                                USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
@@ -667,6 +889,8 @@ static const struct hid_device_id uclogic_devices[] = {
                                USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
                                USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },
+       { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_HUION_TABLET) },
        { }
 };
 MODULE_DEVICE_TABLE(hid, uclogic_devices);
@@ -676,7 +900,10 @@ static struct hid_driver uclogic_driver = {
        .id_table = uclogic_devices,
        .probe = uclogic_probe,
        .report_fixup = uclogic_report_fixup,
+       .raw_event = uclogic_raw_event,
 };
 module_hid_driver(uclogic_driver);
 
+MODULE_AUTHOR("Martin Rusko");
+MODULE_AUTHOR("Nikolai Kondrashov");
 MODULE_LICENSE("GPL");