/*      $OpenBSD: sbdspvar.h,v 1.19 2022/10/28 14:55:46 kn Exp $        */
/*      $NetBSD: sbdspvar.h,v 1.37 1998/08/10 00:20:39 mycroft Exp $    */

/*
 * Copyright (c) 1991-1993 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the Computer Systems
 *      Engineering Group at Lawrence Berkeley Laboratory.
 * 4. Neither the name of the University nor of the Laboratory may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */

#include "midi.h"
#if NMIDI > 0
#include <dev/ic/mpuvar.h>
#endif

#include <sys/timeout.h>

#define SB_MASTER_VOL   0
#define SB_MIDI_VOL     1
#define SB_CD_VOL       2
#define SB_VOICE_VOL    3
#define SB_OUTPUT_CLASS 4

#define SB_MIC_VOL      5
#define SB_LINE_IN_VOL  6
#define SB_RECORD_SOURCE 7
#define SB_TREBLE       8
#define SB_BASS         9
#define SB_RECORD_CLASS 10
#define SB_INPUT_CLASS  11

#define SB_PCSPEAKER    12
#define SB_INPUT_GAIN   13
#define SB_OUTPUT_GAIN  14
#define SB_AGC          15
#define SB_EQUALIZATION_CLASS 16

#define SB_CD_IN_MUTE   17
#define SB_MIC_IN_MUTE  18
#define SB_LINE_IN_MUTE 19
#define SB_MIDI_IN_MUTE 20

#define SB_CD_SWAP      21
#define SB_MIC_SWAP     22
#define SB_LINE_SWAP    23
#define SB_MIDI_SWAP    24

#define SB_CD_OUT_MUTE  25
#define SB_MIC_OUT_MUTE 26
#define SB_LINE_OUT_MUTE 27

#define SB_NDEVS        28

#define SB_IS_IN_MUTE(x) ((x) < SB_CD_SWAP)

/*
 * Software state, per SoundBlaster card.
 * The soundblaster has multiple functionality, which we must demultiplex.
 * One approach is to have one major device number for the soundblaster card,
 * and use different minor numbers to indicate which hardware function
 * we want.  This would make for one large driver.  Instead our approach
 * is to partition the design into a set of drivers that share an underlying
 * piece of hardware.  Most things are hard to share, for example, the audio
 * and midi ports.  For audio, we might want to mix two processes' signals,
 * and for midi we might want to merge streams (this is hard due to
 * running status).  Moreover, we should be able to re-use the high-level
 * modules with other kinds of hardware.  In this module, we only handle the
 * most basic communications with the sb card.
 */
struct sbdsp_softc {
        struct  device sc_dev;          /* base device */
        struct  isadev sc_id;           /* ISA device */
        isa_chipset_tag_t sc_ic;
        bus_space_tag_t sc_iot;         /* tag */
        bus_space_handle_t sc_ioh;      /* handle */
        void    *sc_ih;                 /* interrupt vectoring */
        struct device *sc_isa;
        struct timeout sc_tmo;

        int     sc_iobase;              /* I/O port base address */
        int     sc_irq;                 /* interrupt */
        int     sc_ist;                 /* interrupt share type */
        int     sc_drq8;                /* DMA (8-bit) */
        int     sc_drq16;               /* DMA (16-bit) */

        int     sc_open;                /* reference count of open calls */
#define SB_CLOSED 0
#define SB_OPEN_AUDIO 1
#define SB_OPEN_MIDI 2
        int     sc_openflags;           /* flags used on open */
        u_char  sc_fullduplex;          /* can do full duplex */

        u_char  gain[SB_NDEVS][2];      /* kept in input levels */
#define SB_LEFT 0
#define SB_RIGHT 1
#define SB_LR 0

        u_int   in_mask;                /* input ports */
        u_int   in_port;                /* XXX needed for MI interface */
        u_int   in_filter;              /* one of SB_TREBLE_EQ, SB_BASS_EQ, 0 */

        u_int   spkr_state;             /* non-null is on */

        struct sbdsp_state {
                u_int   rate;           /* Sample rate */
                u_char  tc;             /* Time constant */
                struct  sbmode *modep;
                u_char  bmode;
                int     dmachan;        /* DMA channel */
                int     blksize;        /* Block size, preadjusted */
                u_char  run;
#define SB_NOTRUNNING 0         /* Not running, not initialized */
#define SB_RUNNING 3            /* non-looping mode */
#define SB_LOOPING 2            /* DMA&PCM running (looping mode) */
        } sc_i, sc_o;                   /* Input and output state */

        u_long  sc_interrupts;          /* number of interrupts taken */

        int     (*sc_intr8)(void *);    /* dma completion intr handler */
        void    *sc_arg8;               /* arg for sc_intr8() */
        int     (*sc_intr16)(void *);   /* dma completion intr handler */
        void    *sc_arg16;              /* arg for sc_intr16() */
        void    (*sc_intrp)(void *);    /* PCM output intr handler */
        void    *sc_argp;               /* arg for sc_intrp() */
        void    (*sc_intrr)(void *);    /* PCM input intr handler */
        void    *sc_argr;               /* arg for sc_intrr() */
        void    (*sc_intrm)(void *, int);/* midi input intr handler */
        void    *sc_argm;               /* arg for sc_intrm() */

        u_int   sc_mixer_model;
#define SBM_NONE        0
#define SBM_CT1335      1
#define SBM_CT1345      2
#define SBM_CT1XX5      3
#define SBM_CT1745      4
#define ISSBM1745(x) ((x)->sc_mixer_model >= SBM_CT1XX5)

        int     sc_model;               /* DSP model */
#define SB_UNK  -1
#define SB_1    0                       /* original SB */
#define SB_20   1                       /* SB 2 */
#define SB_2x   2                       /* SB 2, new version */
#define SB_PRO  3                       /* SB Pro */
#define SB_JAZZ 4                       /* Jazz 16 */
#define SB_16   5                       /* SB 16 */
#define SB_32   6                       /* SB AWE 32 */
#define SB_64   7                       /* SB AWE 64 */

#define SB_NAMES { "SB_1", "SB_2.0", "SB_2.x", "SB_Pro", "Jazz_16", "SB_16", "SB_AWE_32", "SB_AWE_64" }

        u_int   sc_version;             /* DSP version */
#define SBVER_MAJOR(v)  (((v)>>8) & 0xff)
#define SBVER_MINOR(v)  ((v)&0xff)

#if NMIDI > 0
        int     sc_hasmpu;
        struct  mpu_softc sc_mpu_sc;    /* MPU401 Uart state */
#endif
};

#define ISSBPRO(sc) ((sc)->sc_model == SB_PRO || (sc)->sc_model == SB_JAZZ)
#define ISSBPROCLASS(sc) ((sc)->sc_model >= SB_PRO)
#define ISSB16CLASS(sc) ((sc)->sc_model >= SB_16)

#ifdef _KERNEL
int     sbdsp_open(void *, int);
void    sbdsp_close(void *);

int     sbdsp_probe(struct sbdsp_softc *);
void    sbdsp_attach(struct sbdsp_softc *);

int     sbdsp_set_in_gain(void *, u_int, u_char);
int     sbdsp_set_in_gain_real(void *, u_int, u_char);
int     sbdsp_get_in_gain(void *);
int     sbdsp_set_out_gain(void *, u_int, u_char);
int     sbdsp_set_out_gain_real(void *, u_int, u_char);
int     sbdsp_get_out_gain(void *);
int     sbdsp_set_monitor_gain(void *, u_int);
int     sbdsp_get_monitor_gain(void *);
int     sbdsp_set_params(void *, int, int, struct audio_params *, struct audio_params *);
int     sbdsp_round_blocksize(void *, int);
int     sbdsp_get_avail_in_ports(void *);
int     sbdsp_get_avail_out_ports(void *);
int     sbdsp_speaker_ctl(void *, int);

int     sbdsp_commit(void *);
int     sbdsp_trigger_output(void *, void *, void *, int, void (*)(void *),
            void *, struct audio_params *);
int     sbdsp_trigger_input(void *, void *, void *, int, void (*)(void *),
            void *, struct audio_params *);

int     sbdsp_haltdma(void *);

void    sbdsp_compress(int, u_char *, int);
void    sbdsp_expand(int, u_char *, int);

int     sbdsp_reset(struct sbdsp_softc *);
void    sbdsp_spkron(struct sbdsp_softc *);
void    sbdsp_spkroff(struct sbdsp_softc *);

int     sbdsp_wdsp(struct sbdsp_softc *, int v);
int     sbdsp_rdsp(struct sbdsp_softc *);

int     sbdsp_intr(void *);

int     sbdsp_set_sr(struct sbdsp_softc *, u_long *, int);

void    sbdsp_mix_write(struct sbdsp_softc *, int, int);
int     sbdsp_mix_read(struct sbdsp_softc *, int);

int     sbdsp_mixer_set_port(void *, mixer_ctrl_t *);
int     sbdsp_mixer_get_port(void *, mixer_ctrl_t *);
int     sbdsp_mixer_query_devinfo(void *, mixer_devinfo_t *);

void    *sb_malloc(void *, int, size_t, int, int);
void    sb_free(void *, void *, int);
size_t sb_round(void *, int, size_t);


int     sbdsp_midi_open(void *, int,
                             void (*iintr)(void *, int),
                             void (*ointr)(void *), void *arg);
void    sbdsp_midi_close(void *);
int     sbdsp_midi_output(void *, int);
void    sbdsp_midi_getinfo(void *, struct midi_info *);
#endif