3 files changed, 62 insertions, 6 deletions

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index f6da2f8a9c18..d8cc9ce165ff 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -422,6 +422,7 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
                                                 report_id, rep_data, 4, 1);
                 } while ((error < 0 || rep_data[1] != 4) && limit++ < WAC_MSG_RETRIES);
         } else if (features->type != TABLETPC &&
+                   features->type != WIRELESS &&
                    features->device_type == BTN_TOOL_PEN) {
                 do {
                         rep_data[0] = 2;
@@ -454,6 +455,21 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
         features->pressure_fuzz = 0;
         features->distance_fuzz = 0;
 
+        /*
+         * The wireless device HID is basic and layout conflicts with
+         * other tablets (monitor and touch interface can look like pen).
+         * Skip the query for this type and modify defaults based on
+         * interface number.
+         */
+        if (features->type == WIRELESS) {
+                if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
+                        features->device_type = 0;
+                } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) {
+                        features->device_type = BTN_TOOL_DOUBLETAP;
+                        features->pktlen = WACOM_PKGLEN_BBTOUCH3;
+                }
+        }
+
         /* only Tablet PCs and Bamboo P&T need to retrieve the info */
         if ((features->type != TABLETPC) && (features->type != TABLETPC2FG) &&
             (features->type != BAMBOO_PT))
@@ -928,14 +944,22 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
         if (error)
                 goto fail4;
 
-        error = wacom_register_input(wacom);
-        if (error)
-                goto fail5;
+        if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
+                error = wacom_register_input(wacom);
+                if (error)
+                        goto fail5;
+        }
 
         /* Note that if query fails it is not a hard failure */
         wacom_query_tablet_data(intf, features);
 
         usb_set_intfdata(intf, wacom);
+
+        if (features->quirks & WACOM_QUIRK_MONITOR) {
+                if (usb_submit_urb(wacom->irq, GFP_KERNEL))
+                        goto fail5;
+        }
+
         return 0;
 
  fail5: wacom_destroy_leds(wacom);
@@ -953,7 +977,8 @@ static void wacom_disconnect(struct usb_interface *intf)
         usb_set_intfdata(intf, NULL);
 
         usb_kill_urb(wacom->irq);
-        input_unregister_device(wacom->wacom_wac.input);
+        if (wacom->wacom_wac.input)
+                input_unregister_device(wacom->wacom_wac.input);
         wacom_destroy_leds(wacom);
         usb_free_urb(wacom->irq);
         usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
@@ -985,7 +1010,8 @@ static int wacom_resume(struct usb_interface *intf)
         wacom_query_tablet_data(intf, features);
         wacom_led_control(wacom);
 
-        if (wacom->open && usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
+        if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR)
+             && usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
                 rv = -EIO;
 
         mutex_unlock(&wacom->lock);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 07a1f218b5c1..6264e6a8d513 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -1044,6 +1044,14 @@ static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
         return 0;
 }
 
+static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
+{
+        if (len != WACOM_PKGLEN_WIRELESS)
+                return 0;
+
+        return 0;
+}
+
 void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 {
         bool sync;
@@ -1094,6 +1102,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
                 sync = wacom_bpt_irq(wacom_wac, len);
                 break;
 
+        case WIRELESS:
+                sync = wacom_wireless_irq(wacom_wac, len);
+                break;
+
         default:
                 sync = false;
                 break;
@@ -1155,7 +1167,7 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 
         /* these device have multiple inputs */
         if (features->type == TABLETPC || features->type == TABLETPC2FG ||
-            features->type == BAMBOO_PT)
+            features->type == BAMBOO_PT || features->type == WIRELESS)
                 features->quirks |= WACOM_QUIRK_MULTI_INPUT;
 
         /* quirk for bamboo touch with 2 low res touches */
@@ -1167,6 +1179,16 @@ void wacom_setup_device_quirks(struct wacom_features *features)
                 features->y_fuzz <<= 5;
                 features->quirks |= WACOM_QUIRK_BBTOUCH_LOWRES;
         }
+
+        if (features->type == WIRELESS) {
+
+                /* monitor never has input and pen/touch have delayed create */
+                features->quirks |= WACOM_QUIRK_NO_INPUT;
+
+                /* must be monitor interface if no device_type set */
+                if (!features->device_type)
+                        features->quirks |= WACOM_QUIRK_MONITOR;
+        }
 }
 
 static unsigned int wacom_calculate_touch_res(unsigned int logical_max,
@@ -1640,6 +1662,9 @@ static const struct wacom_features wacom_features_0xEC =
 static const struct wacom_features wacom_features_0x47 =
         { "Wacom Intuos2 6x8",    WACOM_PKGLEN_INTUOS,    20320, 16240, 1023,
           31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x84 =
+        { "Wacom Wireless Receiver", WACOM_PKGLEN_WIRELESS, 0, 0, 0,
+          0, WIRELESS, 0, 0 };
 static const struct wacom_features wacom_features_0xD0 =
         { "Wacom Bamboo 2FG",     WACOM_PKGLEN_BBFUN,     14720,  9200, 1023,
           31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -1766,6 +1791,7 @@ const struct usb_device_id wacom_ids[] = {
         { USB_DEVICE_DETAILED(0xCE, USB_CLASS_HID,
                               USB_INTERFACE_SUBCLASS_BOOT,
                               USB_INTERFACE_PROTOCOL_MOUSE) },
+        { USB_DEVICE_WACOM(0x84) },
         { USB_DEVICE_WACOM(0xD0) },
         { USB_DEVICE_WACOM(0xD1) },
         { USB_DEVICE_WACOM(0xD2) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 4f0ba21b0196..2c04b6248a56 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -24,6 +24,7 @@
 #define WACOM_PKGLEN_BBTOUCH    20
 #define WACOM_PKGLEN_BBTOUCH3   64
 #define WACOM_PKGLEN_BBPEN      10
+#define WACOM_PKGLEN_WIRELESS   32
 
 /* device IDs */
 #define STYLUS_DEVICE_ID        0x02
@@ -45,6 +46,8 @@
 /* device quirks */
 #define WACOM_QUIRK_MULTI_INPUT         0x0001
 #define WACOM_QUIRK_BBTOUCH_LOWRES      0x0002
+#define WACOM_QUIRK_NO_INPUT            0x0004
+#define WACOM_QUIRK_MONITOR             0x0008
 
 enum {
         PENPARTNER = 0,
@@ -54,6 +57,7 @@ enum {
         PL,
         DTU,
         BAMBOO_PT,
+        WIRELESS,
         INTUOS,
         INTUOS3S,
         INTUOS3,