/*
   *  HID driver for some gyration "special" devices
   *
   *  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) 2007 Paul Walmsley
   *  Copyright (c) 2008 Jiri Slaby

   *  Copyright (c) 2006-2008 Jiri Kosina

   */
  
  /*
   * 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/input.h>
  #include <linux/hid.h>
  #include <linux/module.h>
  
  #include "hid-ids.h"
  
  #define gy_map_key_clear(c)	hid_map_usage_clear(hi, usage, bit, max, \
  					EV_KEY, (c))
  static int gyration_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) != HID_UP_LOGIVENDOR)
  		return 0;
  
  	set_bit(EV_REP, hi->input->evbit);
  	switch (usage->hid & HID_USAGE) {
  	/* Reported on Gyration MCE Remote */
  	case 0x00d: gy_map_key_clear(KEY_HOME);		break;
  	case 0x024: gy_map_key_clear(KEY_DVD);		break;
  	case 0x025: gy_map_key_clear(KEY_PVR);		break;
  	case 0x046: gy_map_key_clear(KEY_MEDIA);	break;
  	case 0x047: gy_map_key_clear(KEY_MP3);		break;

  	case 0x048: gy_map_key_clear(KEY_MEDIA);	break;

  	case 0x049: gy_map_key_clear(KEY_CAMERA);	break;
  	case 0x04a: gy_map_key_clear(KEY_VIDEO);	break;

  	case 0x05a: gy_map_key_clear(KEY_TEXT);		break;
  	case 0x05b: gy_map_key_clear(KEY_RED);		break;
  	case 0x05c: gy_map_key_clear(KEY_GREEN);	break;
  	case 0x05d: gy_map_key_clear(KEY_YELLOW);	break;
  	case 0x05e: gy_map_key_clear(KEY_BLUE);		break;

  
  	default:
  		return 0;
  	}
  	return 1;
  }
  
  static int gyration_event(struct hid_device *hdev, struct hid_field *field,
  		struct hid_usage *usage, __s32 value)
  {

  
  	if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
  		return 0;

  
  	if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
  			(usage->hid & 0xff) == 0x82) {

  		struct input_dev *input = field->hidinput->input;

  		input_event(input, usage->type, usage->code, 1);
  		input_sync(input);
  		input_event(input, usage->type, usage->code, 0);
  		input_sync(input);
  		return 1;
  	}
  
  	return 0;
  }
  
  static const struct hid_device_id gyration_devices[] = {
  	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },

  	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },

  	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },

  	{ }
  };
  MODULE_DEVICE_TABLE(hid, gyration_devices);
  
  static struct hid_driver gyration_driver = {
  	.name = "gyration",
  	.id_table = gyration_devices,
  	.input_mapping = gyration_input_mapping,
  	.event = gyration_event,
  };

  static int __init gyration_init(void)

  {
  	return hid_register_driver(&gyration_driver);
  }

  static void __exit gyration_exit(void)

  {
  	hid_unregister_driver(&gyration_driver);
  }
  
  module_init(gyration_init);
  module_exit(gyration_exit);
  MODULE_LICENSE("GPL");