46e357f1bb
* Get rid of non-async (ie tick task) mode due to inherent brokenness * Get rid of nonblock mode; we never write if buffers aren't sufficient * Move driver init into pcm_open() instead of pcm_init() * Much better underrun handling * Better error handling in some situations * Add in recording functionality * Use smaller audio buffers to avoid glitching * Don't start audio buffer with silence * Allow device name to be overridden by target Recording portions based on work done by Lorenzo Miori in g#633 Change-Id: I0197bdc1749c28109eb79def1e6a3e1d62d8cef3
39 lines
1.6 KiB
C
39 lines
1.6 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) 2016 Amaury Pouly
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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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#ifndef __PCM_ALSA_RB_H__
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#define __PCM_ALSA_RB_H__
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#include <config.h>
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#if defined(SONY_NWZ_LINUX) || defined(HAVE_FIIO_LINUX_CODEC)
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/* Set the PCM volume in dB: each sample with have this volume applied digitally
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* before being sent to ALSA. Volume must satisfy -43 <= dB <= 0 */
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void pcm_alsa_set_digital_volume(int vol_db_l, int vol_db_r);
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#endif
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/* These two should be invoked in your audiohw_preinit() call! */
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void pcm_alsa_set_playback_device(const char *device);
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#if defined(HAVE_RECORDING)
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void pcm_alsa_set_capture_device(const char *device);
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#endif
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int pcm_alsa_get_rate(void);
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#endif /* __PCM_ALSA_RB_H__ */
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