text: /*
   * Linux driver for TerraTec DMX 6Fire USB
   *
   * Author:	Torsten Schenk <torsten.schenk@zoho.com>
   * Created:	Jan 01, 2011
   * Copyright:	(C) Torsten Schenk
   *
   * 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.
   */
  
  #ifndef USB6FIRE_CONTROL_H
  #define USB6FIRE_CONTROL_H
  
  #include "common.h"
  
  enum {
  	CONTROL_MAX_ELEMENTS = 32
  };
  
  enum {
  	CONTROL_RATE_44KHZ,
  	CONTROL_RATE_48KHZ,
  	CONTROL_RATE_88KHZ,
  	CONTROL_RATE_96KHZ,
  	CONTROL_RATE_176KHZ,
  	CONTROL_RATE_192KHZ,
  	CONTROL_N_RATES
  };
  
  struct control_runtime {
  	int (*update_streaming)(struct control_runtime *rt);
  	int (*set_rate)(struct control_runtime *rt, int rate);
  	int (*set_channels)(struct control_runtime *rt, int n_analog_out,
  		int n_analog_in, bool spdif_out, bool spdif_in);
  
  	struct sfire_chip *chip;
  
  	struct snd_kcontrol *element[CONTROL_MAX_ELEMENTS];
  	bool opt_coax_switch;
  	bool line_phono_switch;
  	bool digital_thru_switch;
  	bool usb_streaming;
  	u8 output_vol[6];
  	u8 ovol_updated;
  	u8 output_mute;
  	s8 input_vol[2];
  	u8 ivol_updated;
  };
  
  int usb6fire_control_init(struct sfire_chip *chip);
  void usb6fire_control_abort(struct sfire_chip *chip);
  void usb6fire_control_destroy(struct sfire_chip *chip);
  #endif /* USB6FIRE_CONTROL_H */
  
  