audio: Hacks for sound trigger

/*

 * Extrapolated / reversed header for Sound Trigger

 */

#ifndef SOUND_TRIGGER_PROP_INTF_H

#define SOUND_TRIGGER_PROP_INTF_H

struct sound_trigger_session_info {

    int capture_handle;

    struct pcm *pcm;

    struct pcm_config config;

};

enum audio_event_type {

    AUDIO_EVENT_CAPTURE_DEVICE_INACTIVE,

    AUDIO_EVENT_CAPTURE_DEVICE_ACTIVE,

    dummy1,

    dummy2,

    AUDIO_EVENT_STOP_LAB,

    AUDIO_EVENT_SSR,

    AUDIO_EVENT_NUM_ST_SESSIONS,

    AUDIO_EVENT_READ_SAMPLES,

};

enum sound_trigger_event_type {

    ST_EVENT_SESSION_REGISTER,

    ST_EVENT_SESSION_DEREGISTER

};

typedef enum sound_trigger_event_type sound_trigger_event_type_t;

enum ssr_event_status {

    SND_CARD_STATUS_OFFLINE,

    SND_CARD_STATUS_ONLINE,

    CPE_STATUS_OFFLINE,

    CPE_STATUS_ONLINE

};

struct sound_trigger_event_info {

    struct sound_trigger_session_info st_ses;

};

typedef struct sound_trigger_event_info sound_trigger_event_info_t;

struct audio_read_samples_info {

    struct sound_trigger_session_info *ses_info;

    void *buf;

    size_t num_bytes;

};

struct audio_event_info {

    union {

        enum ssr_event_status status;

        int value;

        struct sound_trigger_session_info ses_info;

        struct audio_read_samples_info aud_info;

    }u;

};

typedef struct audio_event_info audio_event_info_t;

typedef int (*sound_trigger_hw_call_back_t)(enum audio_event_type,

                                            struct audio_event_info*);

#endif