#ifndef __SOUND_ES1688_H
  #define __SOUND_ES1688_H
  
  /*
   *  Header file for ES488/ES1688

   *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>

   *
   *
   *   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.
   *
   *   This program is distributed in the hope that it will be useful,
   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *   GNU General Public License for more details.
   *
   *   You should have received a copy of the GNU General Public License
   *   along with this program; if not, write to the Free Software
   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   *
   */
  
  #include "control.h"
  #include "pcm.h"
  #include <linux/interrupt.h>
  
  #define ES1688_HW_AUTO		0x0000
  #define ES1688_HW_688		0x0001
  #define ES1688_HW_1688		0x0002

  struct snd_es1688 {

  	unsigned long port;		/* port of ESS chip */
  	struct resource *res_port;
  	unsigned long mpu_port;		/* MPU-401 port of ESS chip */
  	int irq;			/* IRQ number of ESS chip */
  	int mpu_irq;			/* MPU IRQ */
  	int dma8;			/* 8-bit DMA */
  	unsigned short version;		/* version of ESS chip */
  	unsigned short hardware;	/* see to ES1688_HW_XXXX */
  
  	unsigned short trigger_value;
  	unsigned char pad;
  	unsigned int dma_size;

  	struct snd_pcm *pcm;
  	struct snd_pcm_substream *playback_substream;
  	struct snd_pcm_substream *capture_substream;

  
  	spinlock_t reg_lock;
  	spinlock_t mixer_lock;
  };

  /* I/O ports */
  
  #define ES1688P(codec, x) ((codec)->port + e_s_s_ESS1688##x)
  
  #define e_s_s_ESS1688RESET	0x6
  #define e_s_s_ESS1688READ	0xa
  #define e_s_s_ESS1688WRITE	0xc
  #define e_s_s_ESS1688COMMAND	0xc
  #define e_s_s_ESS1688STATUS	0xc
  #define e_s_s_ESS1688DATA_AVAIL	0xe
  #define e_s_s_ESS1688DATA_AVAIL_16 0xf
  #define e_s_s_ESS1688MIXER_ADDR	0x4
  #define e_s_s_ESS1688MIXER_DATA	0x5
  #define e_s_s_ESS1688OPL3_LEFT	0x0
  #define e_s_s_ESS1688OPL3_RIGHT	0x2
  #define e_s_s_ESS1688OPL3_BOTH	0x8
  #define e_s_s_ESS1688ENABLE0	0x0
  #define e_s_s_ESS1688ENABLE1	0x9
  #define e_s_s_ESS1688ENABLE2	0xb
  #define e_s_s_ESS1688INIT1	0x7
  
  #define ES1688_DSP_CMD_DMAOFF	0xd0
  #define ES1688_DSP_CMD_SPKON	0xd1
  #define ES1688_DSP_CMD_SPKOFF	0xd3
  #define ES1688_DSP_CMD_DMAON	0xd4
  
  #define ES1688_PCM_DEV		0x14
  #define ES1688_MIC_DEV		0x1a
  #define ES1688_REC_DEV		0x1c
  #define ES1688_MASTER_DEV	0x32
  #define ES1688_FM_DEV		0x36
  #define ES1688_CD_DEV		0x38
  #define ES1688_AUX_DEV		0x3a
  #define ES1688_SPEAKER_DEV	0x3c
  #define ES1688_LINE_DEV		0x3e
  #define ES1688_RECLEV_DEV	0xb4
  
  #define ES1688_MIXS_MASK	0x17
  #define ES1688_MIXS_MIC		0x00
  #define ES1688_MIXS_MIC_MASTER	0x01
  #define ES1688_MIXS_CD		0x02
  #define ES1688_MIXS_AOUT	0x03
  #define ES1688_MIXS_MIC1	0x04
  #define ES1688_MIXS_REC_MIX	0x05
  #define ES1688_MIXS_LINE	0x06
  #define ES1688_MIXS_MASTER	0x07
  #define ES1688_MIXS_MUTE	0x10
  
  /*
  
   */

  void snd_es1688_mixer_write(struct snd_es1688 *chip, unsigned char reg, unsigned char data);

  int snd_es1688_create(struct snd_card *card,

  		      struct snd_es1688 *chip,

  		      unsigned long port,
  		      unsigned long mpu_port,
  		      int irq,
  		      int mpu_irq,
  		      int dma8,

  		      unsigned short hardware);
  int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip, int device,
  		   struct snd_pcm **rpcm);
  int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip);

  int snd_es1688_reset(struct snd_es1688 *chip);

  
  #endif /* __SOUND_ES1688_H */