1 files changed, 43 insertions, 1 deletions

diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 3af8095a7de1..86e563b8d644 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -4,9 +4,9 @@
  *  Copyright (c) 1999 Andreas Gal
  *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
  *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
- *  Copyright (c) 2006-2007 Jiri Kosina
  *  Copyright (c) 2007 Paul Walmsley
  *  Copyright (c) 2008 Jiri Slaby
+ *  Copyright (c) 2006-2008 Jiri Kosina
  */
 
 /*
@@ -23,6 +23,26 @@
 
 #include "hid-ids.h"
 
+#define VAIO_RDESC_CONSTANT 0x0001
+
+struct sony_sc {
+        unsigned long quirks;
+};
+
+/* Sony Vaio VGX has wrongly mouse pointer declared as constant */
+static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+                unsigned int rsize)
+{
+        struct sony_sc *sc = hid_get_drvdata(hdev);
+
+        if ((sc->quirks & VAIO_RDESC_CONSTANT) &&
+                        rsize >= 56 && rdesc[54] == 0x81 && rdesc[55] == 0x07) {
+                dev_info(&hdev->dev, "Fixing up Sony Vaio VGX report "
+                                "descriptor\n");
+                rdesc[55] = 0x06;
+        }
+}
+
 /*
  * Sending HID_REQ_GET_REPORT changes the operation mode of the ps3 controller
  * to "operational".  Without this, the ps3 controller will not report any
@@ -56,6 +76,17 @@ static int sony_set_operational(struct hid_device *hdev)
 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
         int ret;
+        unsigned long quirks = id->driver_data;
+        struct sony_sc *sc;
+
+        sc = kzalloc(sizeof(*sc), GFP_KERNEL);
+        if (sc == NULL) {
+                dev_err(&hdev->dev, "can't alloc apple descriptor\n");
+                return -ENOMEM;
+        }
+
+        sc->quirks = quirks;
+        hid_set_drvdata(hdev, sc);
 
         ret = hid_parse(hdev);
         if (ret) {
@@ -78,11 +109,20 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 err_stop:
         hid_hw_stop(hdev);
 err_free:
+        kfree(sc);
         return ret;
 }
 
+static void sony_remove(struct hid_device *hdev)
+{
+        hid_hw_stop(hdev);
+        kfree(hid_get_drvdata(hdev));
+}
+
 static const struct hid_device_id sony_devices[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
+                .driver_data = VAIO_RDESC_CONSTANT },
         { }
 };
 MODULE_DEVICE_TABLE(hid, sony_devices);
@@ -91,6 +131,8 @@ static struct hid_driver sony_driver = {
         .name = "sony",
         .id_table = sony_devices,
         .probe = sony_probe,
+        .remove = sony_remove,
+        .report_fixup = sony_report_fixup,
 };
 
 static int sony_init(void)