286a4c5caa
Additional status callback is added to pcm_play/rec_data instead of using a special function to set it. Status includes DMA error reporting to the status callback. Playback and recording callback become more alike except playback uses "const void **addr" (because the data should not be altered) and recording uses "void **addr". "const" is put in place throughout where appropriate. Most changes are fairly trivial. One that should be checked in particular because it isn't so much is telechips, if anyone cares to bother. PP5002 is not so trivial either but that tested as working. Change-Id: I4928d69b3b3be7fb93e259f81635232df9bd1df2 Reviewed-on: http://gerrit.rockbox.org/166 Reviewed-by: Michael Sevakis <jethead71@rockbox.org> Tested-by: Michael Sevakis <jethead71@rockbox.org>
114 lines
3.6 KiB
C
114 lines
3.6 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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* $Id$
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*
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* Copyright (C) 2005 by Linus Nielsen Feltzing
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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_PLAYBACK_H
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#define PCM_PLAYBACK_H
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#include <string.h> /* size_t */
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#include "config.h"
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enum pcm_dma_status
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{
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#ifdef HAVE_SPDIF_REC
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PCM_DMAST_ERR_SPDIF = -2,
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#endif
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PCM_DMAST_ERR_DMA = -1,
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PCM_DMAST_OK = 0,
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PCM_DMAST_STARTED = 1,
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};
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/** RAW PCM routines used with playback and recording **/
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/* Typedef for registered data callback */
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typedef void (*pcm_play_callback_type)(const void **start, size_t *size);
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/* Typedef for registered status callback */
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typedef enum pcm_dma_status (*pcm_status_callback_type)(enum pcm_dma_status status);
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/* set the pcm frequency - use values in hw_sampr_list
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* when CONFIG_SAMPR_TYPES is #defined, or-in SAMPR_TYPE_* fields with
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* frequency value. SAMPR_TYPE_PLAY is 0 and the default if none is
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* specified. */
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#ifdef CONFIG_SAMPR_TYPES
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#ifdef SAMPR_TYPE_REC
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unsigned int pcm_sampr_type_rec_to_play(unsigned int samplerate);
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#endif
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#endif /* CONFIG_SAMPR_TYPES */
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void pcm_set_frequency(unsigned int samplerate);
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/* apply settings to hardware immediately */
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void pcm_apply_settings(void);
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/** RAW PCM playback routines **/
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/* Reenterable locks for locking and unlocking the playback interrupt */
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void pcm_play_lock(void);
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void pcm_play_unlock(void);
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void pcm_init(void) INIT_ATTR;
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void pcm_postinit(void);
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bool pcm_is_initialized(void);
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/* This is for playing "raw" PCM data */
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void pcm_play_data(pcm_play_callback_type get_more,
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pcm_status_callback_type status_cb,
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const void *start, size_t size);
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void pcm_calculate_peaks(int *left, int *right);
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const void* pcm_get_peak_buffer(int* count);
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size_t pcm_get_bytes_waiting(void);
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void pcm_play_stop(void);
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void pcm_play_pause(bool play);
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bool pcm_is_paused(void);
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bool pcm_is_playing(void);
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#ifdef HAVE_RECORDING
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/** RAW PCM recording routines **/
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/* Typedef for registered data callback */
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typedef void (*pcm_rec_callback_type)(void **start, size_t *size);
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/* Reenterable locks for locking and unlocking the recording interrupt */
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void pcm_rec_lock(void);
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void pcm_rec_unlock(void);
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/* Initialize pcm recording interface */
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void pcm_init_recording(void);
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/* Uninitialize pcm recording interface */
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void pcm_close_recording(void);
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/* Start recording "raw" PCM data */
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void pcm_record_data(pcm_rec_callback_type more_ready,
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pcm_status_callback_type status_cb,
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void *start, size_t size);
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/* Stop tranferring data into supplied buffer */
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void pcm_stop_recording(void);
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/* Is pcm currently recording? */
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bool pcm_is_recording(void);
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void pcm_calculate_rec_peaks(int *left, int *right);
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#endif /* HAVE_RECORDING */
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#endif /* PCM_PLAYBACK_H */
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