audio_device.h

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/* 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, 
};
 
/* ── 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;
    };
};
 
/* ── 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 */