#ifndef __HID_ROCCAT_ARVO_H
  #define __HID_ROCCAT_ARVO_H
  
  /*
   * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
   */
  
  /*
   * 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/types.h>
  
  struct arvo_mode_key { /* 2 bytes */
  	uint8_t command; /* ARVO_COMMAND_MODE_KEY */
  	uint8_t state;
  } __packed;
  
  struct arvo_button {
  	uint8_t unknown[24];
  } __packed;
  
  struct arvo_info {
  	uint8_t unknown[8];
  } __packed;
  
  struct arvo_key_mask { /* 2 bytes */
  	uint8_t command; /* ARVO_COMMAND_KEY_MASK */
  	uint8_t key_mask;
  } __packed;
  
  /* selected profile is persistent */
  struct arvo_actual_profile { /* 2 bytes */
  	uint8_t command; /* ARVO_COMMAND_ACTUAL_PROFILE */
  	uint8_t actual_profile;
  } __packed;
  
  enum arvo_commands {
  	ARVO_COMMAND_MODE_KEY = 0x3,
  	ARVO_COMMAND_BUTTON = 0x4,
  	ARVO_COMMAND_INFO = 0x5,
  	ARVO_COMMAND_KEY_MASK = 0x6,
  	ARVO_COMMAND_ACTUAL_PROFILE = 0x7,
  };

  struct arvo_special_report {
  	uint8_t unknown1; /* always 0x01 */
  	uint8_t event;
  	uint8_t unknown2; /* always 0x70 */
  } __packed;
  
  enum arvo_special_report_events {
  	ARVO_SPECIAL_REPORT_EVENT_ACTION_PRESS = 0x10,
  	ARVO_SPECIAL_REPORT_EVENT_ACTION_RELEASE = 0x0,
  };
  
  enum arvo_special_report_event_masks {
  	ARVO_SPECIAL_REPORT_EVENT_MASK_ACTION = 0xf0,
  	ARVO_SPECIAL_REPORT_EVENT_MASK_BUTTON = 0x0f,
  };
  
  struct arvo_roccat_report {
  	uint8_t profile;
  	uint8_t button;
  	uint8_t action;
  } __packed;
  
  enum arvo_roccat_report_action {
  	ARVO_ROCCAT_REPORT_ACTION_RELEASE = 0,
  	ARVO_ROCCAT_REPORT_ACTION_PRESS = 1,
  };
  
  struct arvo_device {
  	int roccat_claimed;
  	int chrdev_minor;
  
  	struct mutex arvo_lock;
  
  	int actual_profile;
  };
  
  #endif