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#ifndef __SOUND_SB16_CSP_H

#define __SOUND_SB16_CSP_H

/*

 *  Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>

 *                        Takashi Iwai <tiwai@suse.de>

 *

 *  SB16ASP/AWE32 CSP control

 *

 *   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

 *

 */

/* CSP modes */

#define SNDRV_SB_CSP_MODE_NONE          0x00

#define SNDRV_SB_CSP_MODE_DSP_READ      0x01    /* Record from DSP */

#define SNDRV_SB_CSP_MODE_DSP_WRITE     0x02    /* Play to DSP */

#define SNDRV_SB_CSP_MODE_QSOUND                0x04    /* QSound */

/* CSP load flags */

#define SNDRV_SB_CSP_LOAD_FROMUSER      0x01

#define SNDRV_SB_CSP_LOAD_INITBLOCK     0x02

/* CSP sample width */

#define SNDRV_SB_CSP_SAMPLE_8BIT                0x01

#define SNDRV_SB_CSP_SAMPLE_16BIT               0x02

/* CSP channels */

#define SNDRV_SB_CSP_MONO                       0x01

#define SNDRV_SB_CSP_STEREO             0x02

/* CSP rates */

#define SNDRV_SB_CSP_RATE_8000          0x01

#define SNDRV_SB_CSP_RATE_11025         0x02

#define SNDRV_SB_CSP_RATE_22050         0x04

#define SNDRV_SB_CSP_RATE_44100         0x08

#define SNDRV_SB_CSP_RATE_ALL           0x0f

/* CSP running state */

#define SNDRV_SB_CSP_ST_IDLE            0x00

#define SNDRV_SB_CSP_ST_LOADED          0x01

#define SNDRV_SB_CSP_ST_RUNNING         0x02

#define SNDRV_SB_CSP_ST_PAUSED          0x04

#define SNDRV_SB_CSP_ST_AUTO            0x08

#define SNDRV_SB_CSP_ST_QSOUND          0x10

/* maximum QSound value (180 degrees right) */

#define SNDRV_SB_CSP_QSOUND_MAX_RIGHT   0x20

/* maximum microcode RIFF file size */

#define SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE    0x3000

/* microcode header */

struct snd_sb_csp_mc_header {

        char codec_name[16];            /* id name of codec */

        unsigned short func_req;        /* requested function */

};

/* microcode to be loaded */

struct snd_sb_csp_microcode {

        struct snd_sb_csp_mc_header info;

        unsigned char data[SNDRV_SB_CSP_MAX_MICROCODE_FILE_SIZE];

};

/* start CSP with sample_width in mono/stereo */

struct snd_sb_csp_start {

        int sample_width;       /* sample width, look above */

        int channels;           /* channels, look above */

};

/* CSP information */

struct snd_sb_csp_info {

        char codec_name[16];            /* id name of codec */

        unsigned short func_nr;         /* function number */

        unsigned int acc_format;        /* accepted PCM formats */

        unsigned short acc_channels;    /* accepted channels */

        unsigned short acc_width;       /* accepted sample width */

        unsigned short acc_rates;       /* accepted sample rates */

        unsigned short csp_mode;        /* CSP mode, see above */

        unsigned short run_channels;    /* current channels  */

        unsigned short run_width;       /* current sample width */

        unsigned short version;         /* version id: 0x10 - 0x1f */

        unsigned short state;           /* state bits */

};

/* HWDEP controls */

/* get CSP information */

#define SNDRV_SB_CSP_IOCTL_INFO         _IOR('H', 0x10, struct snd_sb_csp_info)

/* load microcode to CSP */

#define SNDRV_SB_CSP_IOCTL_LOAD_CODE    _IOW('H', 0x11, struct snd_sb_csp_microcode)

/* unload microcode from CSP */

#define SNDRV_SB_CSP_IOCTL_UNLOAD_CODE  _IO('H', 0x12)

/* start CSP */

#define SNDRV_SB_CSP_IOCTL_START                _IOW('H', 0x13, struct snd_sb_csp_start)

/* stop CSP */

#define SNDRV_SB_CSP_IOCTL_STOP         _IO('H', 0x14)

/* pause CSP and DMA transfer */

#define SNDRV_SB_CSP_IOCTL_PAUSE                _IO('H', 0x15)

/* restart CSP and DMA transfer */

#define SNDRV_SB_CSP_IOCTL_RESTART      _IO('H', 0x16)

#ifdef __KERNEL__

#include "sb.h"

#include "hwdep.h"

#include <linux/firmware.h>

struct snd_sb_csp;

/* indices for the known CSP programs */

enum {

        CSP_PROGRAM_MULAW,

        CSP_PROGRAM_ALAW,

        CSP_PROGRAM_ADPCM_INIT,

        CSP_PROGRAM_ADPCM_PLAYBACK,

        CSP_PROGRAM_ADPCM_CAPTURE,

        CSP_PROGRAM_COUNT

};

/*

 * CSP operators

 */

struct snd_sb_csp_ops {

        int (*csp_use) (struct snd_sb_csp * p);

        int (*csp_unuse) (struct snd_sb_csp * p);

        int (*csp_autoload) (struct snd_sb_csp * p, int pcm_sfmt, int play_rec_mode);

        int (*csp_start) (struct snd_sb_csp * p, int sample_width, int channels);

        int (*csp_stop) (struct snd_sb_csp * p);

        int (*csp_qsound_transfer) (struct snd_sb_csp * p);

};

/*

 * CSP private data

 */

struct snd_sb_csp {

        struct snd_sb *chip;            /* SB16 DSP */

        int used;               /* usage flag - exclusive */

        char codec_name[16];    /* name of codec */

        unsigned short func_nr; /* function number */

        unsigned int acc_format;        /* accepted PCM formats */

        int acc_channels;       /* accepted channels */

        int acc_width;          /* accepted sample width */

        int acc_rates;          /* accepted sample rates */

        int mode;               /* MODE */

        int run_channels;       /* current CSP channels */

        int run_width;          /* current sample width */

        int version;            /* CSP version (0x10 - 0x1f) */

        int running;            /* running state */

        struct snd_sb_csp_ops ops;      /* operators */

        spinlock_t q_lock;      /* locking */

        int q_enabled;          /* enabled flag */

        int qpos_left;          /* left position */

        int qpos_right;         /* right position */

        int qpos_changed;       /* position changed flag */

        struct snd_kcontrol *qsound_switch;

        struct snd_kcontrol *qsound_space;

        struct mutex access_mutex;      /* locking */

        const struct firmware *csp_programs[CSP_PROGRAM_COUNT];

};

int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);

#endif

#endif /* __SOUND_SB16_CSP */