/*      $NetBSD: am7930var.h,v 1.15 2020/09/12 05:19:16 isaki Exp $     */

struct am7930_softc;

struct am7930_glue {
        uint8_t (*codec_dread)(struct am7930_softc *sc, int);
        void    (*codec_dwrite)(struct am7930_softc *sc, int, uint8_t);
};

struct am7930_buf {
        uint8_t *start;
        uint8_t *end;
        uint8_t *data;
        uint8_t *blkend;
        uint blksize;

        void (*intr)(void *);
        void *arg;
        uint intr_pending;
};

struct am7930_softc {
        device_t sc_dev;        /* base device */

        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;
        struct am7930_buf sc_p; /* for play */
        struct am7930_buf sc_r; /* for rec */

        kmutex_t sc_lock;
        kmutex_t sc_intr_lock;
        void *sc_sicookie;              /* softint(9) cookie */
        struct evcnt sc_intrcnt;        /* statistics */
};

extern int     am7930debug;

void    am7930_init(struct am7930_softc *, int);
int     am7930_hwintr(void *);
void    am7930_swintr(void *);

/* direct access functions */
#define AM7930_DWRITE(x,y,z)    (*(x)->sc_glue->codec_dwrite)((x),(y),(z))
#define AM7930_DREAD(x,y)       (*(x)->sc_glue->codec_dread)((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.
 */

int     am7930_query_format(void *, audio_format_query_t *);
int     am7930_set_format(void *, int,
            const audio_params_t *, const audio_params_t *,
            audio_filter_reg_t *, audio_filter_reg_t *);
int     am7930_commit_settings(void *);
int     am7930_trigger_output(void *, void *, void *, int, void (*)(void *),
            void *, const audio_params_t *);
int     am7930_trigger_input(void *, void *, void *, int, void (*)(void *),
            void *, const audio_params_t *);
int     am7930_halt_output(void *);
int     am7930_halt_input(void *);
int     am7930_getdev(void *, struct audio_device *);
int     am7930_get_props(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 *);
void    am7930_get_locks(void *, kmutex_t **, kmutex_t **);