audio_device.h

/* SPDX-License-Identifier: GPL-3.0-or-later */
 
#ifndef OVE_AUDIO_DEVICE_H
#define OVE_AUDIO_DEVICE_H
 
#include "ove/audio.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* ── Transport types ────────────────────────────────────────────── */
 
enum ove_audio_transport {
    OVE_AUDIO_TRANSPORT_I2S,  
    OVE_AUDIO_TRANSPORT_PDM,  
    OVE_AUDIO_TRANSPORT_SDL2, 
};
 
/* ── Device configuration ───────────────────────────────────────── */
 
struct ove_audio_device_cfg {
    enum ove_audio_transport    transport;        
    struct ove_audio_fmt        fmt;              
    unsigned int                num_buffers;      
    unsigned int                thread_priority;  
    unsigned int                thread_stack_size; 
    union {
        struct {
            unsigned int        input_device; 
            unsigned int        slot_mask;    
        } i2s;
        struct {
            unsigned int        decimation;  
            unsigned int        clock_freq;  
        } pdm;
        struct {
            const char         *device_name; 
        } sdl2;
    };
};
 
/* ── Device node factories ──────────────────────────────────────── */
 
#ifdef CONFIG_OVE_AUDIO
 
int ove_audio_device_source(struct ove_audio_graph *g,
                            const struct ove_audio_device_cfg *cfg,
                            const char *name);
 
int ove_audio_device_sink(struct ove_audio_graph *g,
                          const struct ove_audio_device_cfg *cfg,
                          const char *name);
 
#endif /* CONFIG_OVE_AUDIO */
 
#ifdef __cplusplus
}
#endif
 
 
#endif /* OVE_AUDIO_DEVICE_H */