ctmixer.h

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#ifndef CTMIXER_H
#define CTMIXER_H

#include "ctatc.h"
#include "ctresource.h"

#define INIT_VOL    0x1c00

enum MIXER_PORT_T {
    MIX_WAVE_FRONT,
    MIX_WAVE_REAR,
    MIX_WAVE_CENTLFE,
    MIX_WAVE_SURROUND,
    MIX_SPDIF_OUT,
    MIX_PCMO_FRONT,
    MIX_MIC_IN,
    MIX_LINE_IN,
    MIX_SPDIF_IN,
    MIX_PCMI_FRONT,
    MIX_PCMI_REAR,
    MIX_PCMI_CENTLFE,
    MIX_PCMI_SURROUND,

    NUM_MIX_PORTS
};

/* alsa mixer descriptor */
struct ct_mixer {
    struct ct_atc *atc;

    void **amixers;     /* amixer resources for volume control */
    void **sums;        /* sum resources for signal collection */
    unsigned int switch_state; /* A bit-map to indicate state of switches */

    int (*get_output_ports)(struct ct_mixer *mixer, enum MIXER_PORT_T type,
                  struct rsc **rleft, struct rsc **rright);

    int (*set_input_left)(struct ct_mixer *mixer,
                  enum MIXER_PORT_T type, struct rsc *rsc);
    int (*set_input_right)(struct ct_mixer *mixer,
                   enum MIXER_PORT_T type, struct rsc *rsc);
#ifdef CONFIG_PM_SLEEP
    int (*resume)(struct ct_mixer *mixer);
#endif
};

int ct_alsa_mix_create(struct ct_atc *atc,
               enum CTALSADEVS device,
               const char *device_name);
int ct_mixer_create(struct ct_atc *atc, struct ct_mixer **rmixer);
int ct_mixer_destroy(struct ct_mixer *mixer);

#endif /* CTMIXER_H */