HID: driver for TopSeed Cyberlink quirky remote

I recently picked up a Cyberlink branded remote control produced
by TopSeed Tech Corp. Alas, it appears that this device is using
non-standard mappings for some of it's keys (Usage page 0xffbc).
Signed-off-by: Lev Babiev <harley@hosers.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/Kconfig

@@ -246,6 +246,13 @@ config GREENASIA_FF
 	(like MANTA Warior MM816 and SpeedLink Strike2 SL-6635) or adapter
 	and want to enable force feedback support for it.
 
+config HID_TOPSEED
+	tristate "TopSeed Cyberlink remote control support" if EMBEDDED
+	depends on USB_HID
+	default y
+	---help---
+	Say Y if you have a TopSeed Cyberlink remote control.
+
 config THRUSTMASTER_FF
 	tristate "ThrustMaster devices support"
 	depends on USB_HID

drivers/hid/Makefile

@@ -39,6 +39,7 @@ obj-$(CONFIG_HID_SONY)		+= hid-sony.o
 obj-$(CONFIG_HID_SUNPLUS)	+= hid-sunplus.o
 obj-$(CONFIG_GREENASIA_FF)	+= hid-gaff.o
 obj-$(CONFIG_THRUSTMASTER_FF)	+= hid-tmff.o
+obj-$(CONFIG_HID_TOPSEED)	+= hid-topseed.o
 obj-$(CONFIG_ZEROPLUS_FF)	+= hid-zpff.o
 
 obj-$(CONFIG_USB_HID)		+= usbhid/

drivers/hid/hid-core.c

@@ -1299,6 +1299,7 @@ static const struct hid_device_id hid_blacklist[] = {
 	{ 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) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
 
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 0x030c) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },

drivers/hid/hid-ids.h

@@ -375,6 +375,9 @@
 #define USB_VENDOR_ID_TOPMAX		0x0663
 #define USB_DEVICE_ID_TOPMAX_COBRAPAD	0x0103
 
+#define USB_VENDOR_ID_TOPSEED		0x0766
+#define USB_DEVICE_ID_TOPSEED_CYBERLINK	0x0204
+
 #define USB_VENDOR_ID_TURBOX		0x062a
 #define USB_DEVICE_ID_TURBOX_KEYBOARD	0x0201
 

drivers/hid/hid-topseed.c

+/*
+ *  HID driver for TopSeed Cyberlink remote
+ *
+ *  Copyright (c) 2008 Lev Babiev
+ *  based on hid-cherry driver
+ */
+
+/*
+ * 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 "hid-ids.h"
+
+#define ts_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
+					EV_KEY, (c))
+static int ts_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+		struct hid_field *field, struct hid_usage *usage,
+		unsigned long **bit, int *max)
+{
+	if ((usage->hid & HID_USAGE_PAGE) != 0x0ffbc0000)
+		return 0;
+
+	switch (usage->hid & HID_USAGE) {
+        case 0x00d: ts_map_key_clear(KEY_HOME);           break;
+        case 0x024: ts_map_key_clear(KEY_MENU);           break;
+        case 0x025: ts_map_key_clear(KEY_TV);             break;
+        case 0x048: ts_map_key_clear(KEY_RED);            break;
+        case 0x047: ts_map_key_clear(KEY_GREEN);          break;
+        case 0x049: ts_map_key_clear(KEY_YELLOW);         break;
+        case 0x04a: ts_map_key_clear(KEY_BLUE);           break;
+        case 0x04b: ts_map_key_clear(KEY_ANGLE);          break;
+        case 0x04c: ts_map_key_clear(KEY_LANGUAGE);       break;
+        case 0x04d: ts_map_key_clear(KEY_SUBTITLE);       break;
+        case 0x031: ts_map_key_clear(KEY_AUDIO);          break;
+        case 0x032: ts_map_key_clear(KEY_TEXT);           break;
+        case 0x033: ts_map_key_clear(KEY_CHANNEL);        break;
+	default:
+		return 0;
+	}
+
+	return 1;
+}
+
+static const struct hid_device_id ts_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
+	{ }
+};
+MODULE_DEVICE_TABLE(hid, ts_devices);
+
+static struct hid_driver ts_driver = {
+	.name = "topseed",
+	.id_table = ts_devices,
+	.input_mapping = ts_input_mapping,
+};
+
+static int ts_init(void)
+{
+	return hid_register_driver(&ts_driver);
+}
+
+static void ts_exit(void)
+{
+	hid_unregister_driver(&ts_driver);
+}
+
+module_init(ts_init);
+module_exit(ts_exit);
+MODULE_LICENSE("GPL");
+
+HID_COMPAT_LOAD_DRIVER(topseed);