/*
   *  HID driver for PenMount touchscreens
   *
   *  Copyright (c) 2014 Christian Gmeiner <christian.gmeiner <at> gmail.com>
   *
   *  based on hid-penmount copyrighted by
   *    PenMount Touch Solutions <penmount <at> seed.net.tw>
   */
  
  /*
   * 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/module.h>
  #include <linux/hid.h>
  #include "hid-ids.h"
  
  static int penmount_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_BUTTON) {

  		if (((usage->hid - 1) & HID_USAGE) == 0) {
  			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
  			return 1;
  		} else {
  			return -1;
  		}

  	}
  
  	return 0;
  }
  
  static const struct hid_device_id penmount_devices[] = {
  	{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
  	{ }
  };
  MODULE_DEVICE_TABLE(hid, penmount_devices);
  
  static struct hid_driver penmount_driver = {
  	.name = "hid-penmount",
  	.id_table = penmount_devices,
  	.input_mapping = penmount_input_mapping,
  };
  
  module_hid_driver(penmount_driver);
  
  MODULE_AUTHOR("Christian Gmeiner <christian.gmeiner@gmail.com>");
  MODULE_DESCRIPTION("PenMount HID TouchScreen driver");
  MODULE_LICENSE("GPL");