/* SPDX-License-Identifier: GPL-2.0 */

  #ifndef XONAR_DG_H_INCLUDED
  #define XONAR_DG_H_INCLUDED
  
  #include "oxygen.h"

  #define GPIO_MAGIC		0x0008
  #define GPIO_HP_DETECT		0x0010
  #define GPIO_INPUT_ROUTE	0x0060
  #define GPIO_HP_REAR		0x0080
  #define GPIO_OUTPUT_ENABLE	0x0100
  
  #define CAPTURE_SRC_MIC		0
  #define CAPTURE_SRC_FP_MIC	1
  #define CAPTURE_SRC_LINE	2
  #define CAPTURE_SRC_AUX		3
  
  #define PLAYBACK_DST_HP		0
  #define PLAYBACK_DST_HP_FP	1
  #define PLAYBACK_DST_MULTICH	2

  enum cs4245_shadow_operation {
  	CS4245_SAVE_TO_SHADOW,
  	CS4245_LOAD_FROM_SHADOW
  };

  struct dg {

  	/* shadow copy of the CS4245 register space */
  	unsigned char cs4245_shadow[17];

  	/* output select: headphone/speakers */

  	unsigned char output_sel;

  	/* volumes for all capture sources */
  	char input_vol[4][2];

  	/* input select: mic/fp mic/line/aux */
  	unsigned char input_sel;

  };

  /* Xonar DG control routines */
  int cs4245_write_spi(struct oxygen *chip, u8 reg);
  int cs4245_read_spi(struct oxygen *chip, u8 reg);
  int cs4245_shadow_control(struct oxygen *chip, enum cs4245_shadow_operation op);
  void dg_init(struct oxygen *chip);
  void set_cs4245_dac_params(struct oxygen *chip,
  				  struct snd_pcm_hw_params *params);
  void set_cs4245_adc_params(struct oxygen *chip,
  				  struct snd_pcm_hw_params *params);
  unsigned int adjust_dg_dac_routing(struct oxygen *chip,
  					  unsigned int play_routing);
  void dump_cs4245_registers(struct oxygen *chip,
  				struct snd_info_buffer *buffer);
  void dg_suspend(struct oxygen *chip);
  void dg_resume(struct oxygen *chip);
  void dg_cleanup(struct oxygen *chip);

  extern struct oxygen_model model_xonar_dg;
  
  #endif