#ifndef __SOUND_WSS_H
  #define __SOUND_WSS_H

  
  /*

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

   *  Definitions for CS4231 & InterWave chips & compatible chips
   *
   *
   *   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 <sound/control.h>
  #include <sound/pcm.h>
  #include <sound/timer.h>

  #include <sound/cs4231-regs.h>

  
  /* defines for codec.mode */

  #define WSS_MODE_NONE	0x0000
  #define WSS_MODE_PLAY	0x0001
  #define WSS_MODE_RECORD	0x0002
  #define WSS_MODE_TIMER	0x0004
  #define WSS_MODE_OPEN	(WSS_MODE_PLAY|WSS_MODE_RECORD|WSS_MODE_TIMER)

  
  /* defines for codec.hardware */

  #define WSS_HW_DETECT        0x0000	/* let CS4231 driver detect chip */
  #define WSS_HW_DETECT3	0x0001	/* allow mode 3 */
  #define WSS_HW_TYPE_MASK	0xff00	/* type mask */
  #define WSS_HW_CS4231_MASK   0x0100	/* CS4231 serie */
  #define WSS_HW_CS4231        0x0100	/* CS4231 chip */
  #define WSS_HW_CS4231A       0x0101	/* CS4231A chip */
  #define WSS_HW_AD1845	0x0102	/* AD1845 chip */
  #define WSS_HW_CS4232_MASK   0x0200	/* CS4232 serie (has control ports) */
  #define WSS_HW_CS4232        0x0200	/* CS4232 */
  #define WSS_HW_CS4232A       0x0201	/* CS4232A */
  #define WSS_HW_CS4236	0x0202	/* CS4236 */
  #define WSS_HW_CS4236B_MASK	0x0400	/* CS4236B serie (has extended control regs) */
  #define WSS_HW_CS4235	0x0400	/* CS4235 - Crystal Clear (tm) stereo enhancement */
  #define WSS_HW_CS4236B       0x0401	/* CS4236B */
  #define WSS_HW_CS4237B       0x0402	/* CS4237B - SRS 3D */
  #define WSS_HW_CS4238B	0x0403	/* CS4238B - QSOUND 3D */
  #define WSS_HW_CS4239	0x0404	/* CS4239 - Crystal Clear (tm) stereo enhancement */

  #define WSS_HW_AD1848_MASK	0x0800	/* AD1848 serie (half duplex) */
  #define WSS_HW_AD1847		0x0801	/* AD1847 chip */
  #define WSS_HW_AD1848		0x0802	/* AD1848 chip */
  #define WSS_HW_CS4248		0x0803	/* CS4248 chip */
  #define WSS_HW_CMI8330		0x0804	/* CMI8330 chip */
  #define WSS_HW_THINKPAD		0x0805	/* Thinkpad 360/750/755 */

  /* compatible, but clones */

  #define WSS_HW_INTERWAVE     0x1000	/* InterWave chip */
  #define WSS_HW_OPL3SA2       0x1101	/* OPL3-SA2 chip, similar to cs4231 */
  #define WSS_HW_OPTI93X 	0x1102	/* Opti 930/931/933 */

  
  /* defines for codec.hwshare */

  #define WSS_HWSHARE_IRQ	(1<<0)
  #define WSS_HWSHARE_DMA1	(1<<1)
  #define WSS_HWSHARE_DMA2	(1<<2)

  /* IBM Thinkpad specific stuff */
  #define AD1848_THINKPAD_CTL_PORT1		0x15e8
  #define AD1848_THINKPAD_CTL_PORT2		0x15e9
  #define AD1848_THINKPAD_CS4248_ENABLE_BIT	0x02

  struct snd_wss {

  	unsigned long port;		/* base i/o port */

  	struct resource *res_port;
  	unsigned long cport;		/* control base i/o port (CS4236) */
  	struct resource *res_cport;
  	int irq;			/* IRQ line */
  	int dma1;			/* playback DMA */
  	int dma2;			/* record DMA */

  	unsigned short version;		/* version of CODEC chip */

  	unsigned short mode;		/* see to WSS_MODE_XXXX */
  	unsigned short hardware;	/* see to WSS_HW_XXXX */

  	unsigned short hwshare;		/* shared resources */

  	unsigned short single_dma:1,	/* forced single DMA mode (GUS 16-bit */
  					/* daughter board) or dma1 == dma2 */
  		       ebus_flag:1,	/* SPARC: EBUS present */
  		       thinkpad_flag:1;	/* Thinkpad CS4248 needs extra help */

  	struct snd_card *card;
  	struct snd_pcm *pcm;
  	struct snd_pcm_substream *playback_substream;
  	struct snd_pcm_substream *capture_substream;
  	struct snd_timer *timer;

  
  	unsigned char image[32];	/* registers image */
  	unsigned char eimage[32];	/* extended registers image */
  	unsigned char cimage[16];	/* control registers image */
  	int mce_bit;
  	int calibrate_mute;
  	int sw_3d_bit;

  	unsigned int p_dma_size;
  	unsigned int c_dma_size;

  
  	spinlock_t reg_lock;

  	struct mutex mce_mutex;
  	struct mutex open_mutex;

  	int (*rate_constraint) (struct snd_pcm_runtime *runtime);

  	void (*set_playback_format) (struct snd_wss *chip,
  				     struct snd_pcm_hw_params *hw_params,
  				     unsigned char pdfr);
  	void (*set_capture_format) (struct snd_wss *chip,
  				    struct snd_pcm_hw_params *hw_params,
  				    unsigned char cdfr);
  	void (*trigger) (struct snd_wss *chip, unsigned int what, int start);

  #ifdef CONFIG_PM

  	void (*suspend) (struct snd_wss *chip);
  	void (*resume) (struct snd_wss *chip);

  #endif
  	void *dma_private_data;

  	int (*claim_dma) (struct snd_wss *chip,
  			  void *dma_private_data, int dma);
  	int (*release_dma) (struct snd_wss *chip,
  			    void *dma_private_data, int dma);

  };
  
  /* exported functions */

  void snd_wss_out(struct snd_wss *chip, unsigned char reg, unsigned char val);
  unsigned char snd_wss_in(struct snd_wss *chip, unsigned char reg);
  void snd_cs4236_ext_out(struct snd_wss *chip,
  			unsigned char reg, unsigned char val);
  unsigned char snd_cs4236_ext_in(struct snd_wss *chip, unsigned char reg);
  void snd_wss_mce_up(struct snd_wss *chip);
  void snd_wss_mce_down(struct snd_wss *chip);

  void snd_wss_overrange(struct snd_wss *chip);

  irqreturn_t snd_wss_interrupt(int irq, void *dev_id);

  const char *snd_wss_chip_id(struct snd_wss *chip);

  int snd_wss_create(struct snd_card *card,

  		      unsigned long port,
  		      unsigned long cport,
  		      int irq, int dma1, int dma2,
  		      unsigned short hardware,
  		      unsigned short hwshare,

  		      struct snd_wss **rchip);
  int snd_wss_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm);
  int snd_wss_timer(struct snd_wss *chip, int device, struct snd_timer **rtimer);
  int snd_wss_mixer(struct snd_wss *chip);

  const struct snd_pcm_ops *snd_wss_get_pcm_ops(int direction);

  int snd_cs4236_create(struct snd_card *card,

  		      unsigned long port,
  		      unsigned long cport,
  		      int irq, int dma1, int dma2,
  		      unsigned short hardware,
  		      unsigned short hwshare,

  		      struct snd_wss **rchip);
  int snd_cs4236_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm);
  int snd_cs4236_mixer(struct snd_wss *chip);

  
  /*
   *  mixer library
   */

  #define WSS_SINGLE(xname, xindex, reg, shift, mask, invert) \
  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
    .name = xname, \
    .index = xindex, \
    .info = snd_wss_info_single, \
    .get = snd_wss_get_single, \
    .put = snd_wss_put_single, \

    .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }

  int snd_wss_info_single(struct snd_kcontrol *kcontrol,
  			struct snd_ctl_elem_info *uinfo);
  int snd_wss_get_single(struct snd_kcontrol *kcontrol,
  			struct snd_ctl_elem_value *ucontrol);
  int snd_wss_put_single(struct snd_kcontrol *kcontrol,
  			struct snd_ctl_elem_value *ucontrol);
  
  #define WSS_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
    .name = xname, \
    .index = xindex, \
    .info = snd_wss_info_double, \
    .get = snd_wss_get_double, \
    .put = snd_wss_put_double, \
    .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | \
  		   (shift_right << 19) | (mask << 24) | (invert << 22) }

  #define WSS_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
    .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
    .name = xname, \
    .index = xindex, \
    .info = snd_wss_info_single, \
    .get = snd_wss_get_single, \
    .put = snd_wss_put_single, \
    .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
    .tlv = { .p = (xtlv) } }
  
  #define WSS_DOUBLE_TLV(xname, xindex, left_reg, right_reg, \
  			shift_left, shift_right, mask, invert, xtlv) \
  { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
    .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
    .name = xname, \
    .index = xindex, \
    .info = snd_wss_info_double, \
    .get = snd_wss_get_double, \
    .put = snd_wss_put_double, \
    .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | \
  		   (shift_right << 19) | (mask << 24) | (invert << 22), \
    .tlv = { .p = (xtlv) } }

  int snd_wss_info_double(struct snd_kcontrol *kcontrol,
  			struct snd_ctl_elem_info *uinfo);
  int snd_wss_get_double(struct snd_kcontrol *kcontrol,
  			struct snd_ctl_elem_value *ucontrol);
  int snd_wss_put_double(struct snd_kcontrol *kcontrol,
  			struct snd_ctl_elem_value *ucontrol);
  
  #endif /* __SOUND_WSS_H */