/*      $OpenBSD: am7930var.h,v 1.6 2022/10/26 20:19:07 kn Exp $        */
/*      $NetBSD: am7930var.h,v 1.10 2005/01/15 15:19:52 kent Exp $      */

/*
 * Copyright (c) 1992, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * This software was developed by the Computer Systems Engineering group
 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
 * contributed to Berkeley.
 *
 * All advertising materials mentioning features or use of this software
 * must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Lawrence Berkeley Laboratory.
 *
 * 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. Neither the name of the University nor the names of its contributors
 *    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.
 *
 *      @(#)bsd_audiovar.h      8.1 (Berkeley) 6/11/93
 */

struct am7930_softc;

struct am7930_glue {
        uint8_t (*codec_iread)(struct am7930_softc *sc, int);
        void    (*codec_iwrite)(struct am7930_softc *sc, int, uint8_t);
        uint16_t        (*codec_iread16)(struct am7930_softc *sc, int);
        void    (*codec_iwrite16)(struct am7930_softc *sc, int, uint16_t);
        void    (*onopen)(struct am7930_softc *sc);
        void    (*onclose)(struct am7930_softc *sc);
        int     precision;
};

struct am7930_softc {
        struct device sc_dev;   /* base device */
        int     sc_open;
        int     sc_locked;

        uint8_t sc_rlevel;      /* record level */
        uint8_t sc_plevel;      /* play level */
        uint8_t sc_mlevel;      /* monitor level */
        uint8_t sc_out_port;    /* output port */
        uint8_t sc_mic_mute;

        struct am7930_glue *sc_glue;
};

extern int     am7930debug;

void    am7930_init(struct am7930_softc *, int);

#define AM7930_IWRITE(x,y,z)    (*(x)->sc_glue->codec_iwrite)((x),(y),(z))
#define AM7930_IREAD(x,y)       (*(x)->sc_glue->codec_iread)((x),(y))
#define AM7930_IWRITE16(x,y,z)  (*(x)->sc_glue->codec_iwrite16)((x),(y),(z))
#define AM7930_IREAD16(x,y)     (*(x)->sc_glue->codec_iread16)((x),(y))

#define AUDIOAMD_POLL_MODE      0
#define AUDIOAMD_DMA_MODE       1

/*
 * audio channel definitions.
 */

#define AUDIOAMD_SPEAKER_VOL    0       /* speaker volume */
#define AUDIOAMD_HEADPHONES_VOL 1       /* headphones volume */
#define AUDIOAMD_OUTPUT_CLASS   2

#define AUDIOAMD_MONITOR_VOL    3       /* monitor input volume */
#define AUDIOAMD_MONITOR_OUTPUT 4       /* output selector */
#define AUDIOAMD_MONITOR_CLASS  5

#define AUDIOAMD_MIC_VOL        6       /* microphone volume */
#define AUDIOAMD_MIC_MUTE       7
#define AUDIOAMD_INPUT_CLASS    8

#define AUDIOAMD_RECORD_SOURCE  9       /* source selector */
#define AUDIOAMD_RECORD_CLASS   10

/*
 * audio(9) MI callbacks from upper-level audio layer.
 */

struct audio_params;

int     am7930_open(void *, int);
void    am7930_close(void *);
int     am7930_set_params(void *, int, int, struct audio_params *,
            struct audio_params *);
int     am7930_commit_settings(void *);
int     am7930_round_blocksize(void *, int);
int     am7930_halt_output(void *);
int     am7930_halt_input(void *);
int     am7930_set_port(void *, mixer_ctrl_t *);
int     am7930_get_port(void *, mixer_ctrl_t *);
int     am7930_query_devinfo(void *, mixer_devinfo_t *);