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69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Copyright (C) 2025 by Sho Tanimoto
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#pragma once
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#include <stddef.h>
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#include <stdint.h>
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#include "config.h"
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#define PCM_SINK_HWVOL 0
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#ifdef WANT_SWVOL
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#define PCM_SINK_SWVOL 1
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#endif
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struct pcm_sink_caps {
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const unsigned long* samprs;
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uint8_t num_samprs;
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uint8_t default_freq;
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uint8_t volume_type;
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};
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struct pcm_sink_ops {
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void (*init)(void);
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void (*postinit)(void);
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void (*set_freq)(uint16_t freq);
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void (*lock)(void);
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void (*unlock)(void);
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void (*play)(const void* addr, size_t size);
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void (*stop)(void);
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};
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struct pcm_sink {
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/* characteristics */
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struct pcm_sink_caps caps;
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/* operations */
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const struct pcm_sink_ops ops;
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/* runtime states */
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unsigned long pending_freq;
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unsigned long configured_freq;
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};
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enum pcm_sink_ids {
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PCM_SINK_BUILTIN = 0,
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#ifdef USB_ENABLE_IAP
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PCM_SINK_IAP,
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#endif
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PCM_SINK_NUM
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};
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/* defined in each platform pcm source */
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extern struct pcm_sink builtin_pcm_sink;
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