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au88x0_wt.h

/***************************************************************************
 *           WT register offsets.
 *
 *  Wed Oct 22 13:50:20 2003
 *  Copyright  2003  mjander
 *  mjander@users.sourceforge.org
 ****************************************************************************/
#ifndef _AU88X0_WT_H
#define _AU88X0_WT_H

/* WT channels are grouped in banks. Each bank has 0x20 channels. */
/* Bank register address boundary is 0x8000 */

#define NR_WT_PB 0x20

/* WT bank base register (as dword address). */
#define WT_BAR(x) (((x)&0xffe0)<<0x8)
#define WT_BANK(x) (x>>5)
/* WT Bank registers */
#define WT_CTRL(bank)   (((((bank)&1)<<0xd) + 0x00)<<2)     /* 0x0000 */
#define WT_SRAMP(bank)  (((((bank)&1)<<0xd) + 0x01)<<2)     /* 0x0004 */
#define WT_DSREG(bank)  (((((bank)&1)<<0xd) + 0x02)<<2)     /* 0x0008 */
#define WT_MRAMP(bank)  (((((bank)&1)<<0xd) + 0x03)<<2)     /* 0x000c */
#define WT_GMODE(bank)  (((((bank)&1)<<0xd) + 0x04)<<2)     /* 0x0010 */
#define WT_ARAMP(bank)  (((((bank)&1)<<0xd) + 0x05)<<2)     /* 0x0014 */
/* WT Voice registers */
#define WT_STEREO(voice)      ((WT_BAR(voice)+ 0x20 +(((voice)&0x1f)>>1))<<2) /* 0x0080 */
#define WT_MUTE(voice)        ((WT_BAR(voice)+ 0x40 +((voice)&0x1f))<<2)      /* 0x0100 */
#define WT_RUN(voice)         ((WT_BAR(voice)+ 0x60 +((voice)&0x1f))<<2)      /* 0x0180 */
/* Some kind of parameters. */
/* PARM0, PARM1 : Filter (0xFF000000), SampleRate (0x0000FFFF) */
/* PARM2, PARM3 : Still unknown */
#define WT_PARM(x,y)    (((WT_BAR(x))+ 0x80 +(((x)&0x1f)<<2)+(y))<<2)   /* 0x0200 */
#define WT_DELAY(x,y)   (((WT_BAR(x))+ 0x100 +(((x)&0x1f)<<2)+(y))<<2)  /* 0x0400 */

/* Numeric indexes used by SetReg() and GetReg() */
#if 0
enum {
      run = 0,          /* 0  W 1:run 0:stop */
      parm0,                  /* 1  W filter, samplerate */
      parm1,                  /* 2  W filter, samplerate */
      parm2,                  /* 3  W  */
      parm3,                  /* 4  RW volume. This value is calculated using floating point ops. */
      sramp,                  /* 5  W */
      mute,             /* 6  W 1:mute, 0:unmute */
      gmode,                  /* 7  RO Looks like only bit0 is used. */
      aramp,                  /* 8  W */
      mramp,                  /* 9  W */
      ctrl,             /* a  W */
      delay,                  /* b  W All 4 values are written at once with same value. */
      dsreg,                  /* c  (R)W */
} wt_reg;
#endif

typedef struct {
      unsigned int parm0;     /* this_1E4 */
      unsigned int parm1;     /* this_1E8 */
      unsigned int parm2;     /* this_1EC */
      unsigned int parm3;     /* this_1F0 */
      unsigned int this_1D0;
} wt_voice_t;

#endif                        /* _AU88X0_WT_H */

/* End of file */

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