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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef PCM_RECORD_H
#define PCM_RECORD_H
#define DMA_REC_ERROR_DMA (-1)
#ifdef HAVE_SPDIF_IN
#define DMA_REC_ERROR_SPDIF (-2)
#endif
/** Warnings **/
/* pcm (dma) buffer has overflowed */
#define PCMREC_W_PCM_BUFFER_OVF 0x00000001
/* encoder output buffer has overflowed */
#define PCMREC_W_ENC_BUFFER_OVF 0x00000002
#ifdef PCMREC_PARANOID
/* dma write position alignment incorrect */
#define PCMREC_W_DMA_WR_POS_ALIGN 0x00000004
/* pcm read position changed at some point not under control of recording */
#define PCMREC_W_PCM_RD_POS_TRASHED 0x00000008
/* dma write position changed at some point not under control of recording */
#define PCMREC_W_DMA_WR_POS_TRASHED 0x00000010
#endif /* PCMREC_PARANOID */
/** Errors **/
/* failed to load encoder */
#define PCMREC_E_LOAD_ENCODER 0x80001000
/* error originating in encoder */
#define PCMREC_E_ENCODER 0x80002000
/* filename queue has desynced from stream markers */
#define PCMREC_E_FNQ_DESYNC 0x80004000
#ifdef PCMREC_PARANOID
/* encoder has written past end of allotted space */
#define PCMREC_E_CHUNK_OVF 0x80008000
/* chunk header incorrect */
#define PCMREC_E_BAD_CHUNK 0x80010000
/* encoder read position changed outside of recording control */
#define PCMREC_E_ENC_RD_INDEX_TRASHED 0x80020000
/* encoder write position changed outside of recording control */
#define PCMREC_E_ENC_WR_INDEX_TRASHED 0x80040000
#endif /* PCMREC_PARANOID */
/**
* RAW pcm data recording
* These calls are nescessary only when using the raw pcm apis directly.
*/
/* Initialize pcm recording interface */
void pcm_init_recording(void);
/* Uninitialze pcm recording interface */
void pcm_close_recording(void);
/* Start recording "raw" PCM data */
void pcm_record_data(pcm_more_callback_type2 more_ready,
void *start, size_t size);
/* Stop tranferring data into supplied buffer */
void pcm_stop_recording(void);
/* Continue transferring data in - call during interrupt handler */
void pcm_record_more(void *start, size_t size);
void pcm_calculate_rec_peaks(int *left, int *right);
/** General functions for high level codec recording **/
/* pcm_rec_error_clear is deprecated for general use. audio_error_clear
should be used */
void pcm_rec_error_clear(void);
/* pcm_rec_status is deprecated for general use. audio_status merges the
results for consistency with the hardware codec version */
unsigned long pcm_rec_status(void);
unsigned long pcm_rec_get_warnings(void);
void pcm_rec_init(void);
int pcm_rec_current_bitrate(void);
int pcm_rec_encoder_afmt(void); /* AFMT_* value, AFMT_UNKNOWN if none */
int pcm_rec_rec_format(void); /* Format index or -1 otherwise */
unsigned long pcm_rec_sample_rate(void);
int pcm_get_num_unprocessed(void);
/* audio.h contains audio_* recording functions */
/** The following are for internal use between pcm_record.c and target-
specific portion **/
/* the registered callback function for when more data is available */
extern volatile pcm_more_callback_type2 pcm_callback_more_ready;
/* DMA transfer in is currently active */
extern volatile bool pcm_recording;
/* APIs implemented in the target-specific portion */
extern void pcm_rec_dma_start(void *addr, size_t size);
extern void pcm_rec_dma_stop(void);
#endif /* PCM_RECORD_H */
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