HID: wiimote: Register wiimote hid driver stub

The wiimote uses a fake HID protocol. Hence, we need to prevent
HIDINPUT and HIDDEV from parsing wiimote data and instead parse
raw hid events.
Add VID/PID to hid-core so the special driver is loaded on new
wiimotes.

Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 61 insertions, 1 deletions

diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote.c
index 8a770e62a8b4..ed4fe18c7fb5 100644
--- a/drivers/hid/hid-wiimote.c
+++ b/drivers/hid/hid-wiimote.c
@@ -10,18 +10,78 @@
  * any later version.
  */
 
+#include <linux/hid.h>
 #include <linux/module.h>
+#include "hid-ids.h"
 
 #define WIIMOTE_VERSION "0.1"
 #define WIIMOTE_NAME "Nintendo Wii Remote"
 
-static int __init wiimote_init(void)
+static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,
+                                                        u8 *raw_data, int size)
+{
+        if (size < 1)
+                return -EINVAL;
+
+        return 0;
+}
+
+static int wiimote_hid_probe(struct hid_device *hdev,
+                                const struct hid_device_id *id)
 {
+        int ret;
+
+        ret = hid_parse(hdev);
+        if (ret) {
+                hid_err(hdev, "HID parse failed\n");
+                return ret;
+        }
+
+        ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+        if (ret) {
+                hid_err(hdev, "HW start failed\n");
+                return ret;
+        }
+
+        hid_info(hdev, "New device registered\n");
         return 0;
 }
 
+static void wiimote_hid_remove(struct hid_device *hdev)
+{
+        hid_info(hdev, "Device removed\n");
+        hid_hw_stop(hdev);
+}
+
+static const struct hid_device_id wiimote_hid_devices[] = {
+        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
+                                USB_DEVICE_ID_NINTENDO_WIIMOTE) },
+        { }
+};
+MODULE_DEVICE_TABLE(hid, wiimote_hid_devices);
+
+static struct hid_driver wiimote_hid_driver = {
+        .name = "wiimote",
+        .id_table = wiimote_hid_devices,
+        .probe = wiimote_hid_probe,
+        .remove = wiimote_hid_remove,
+        .raw_event = wiimote_hid_event,
+};
+
+static int __init wiimote_init(void)
+{
+        int ret;
+
+        ret = hid_register_driver(&wiimote_hid_driver);
+        if (ret)
+                pr_err("Can't register wiimote hid driver\n");
+
+        return ret;
+}
+
 static void __exit wiimote_exit(void)
 {
+        hid_unregister_driver(&wiimote_hid_driver);
 }
 
 module_init(wiimote_init);