e189b33ff4
Mixer needn't keep peak data around that will never be used. Just pass pcm_peaks structure to it instead of allocating for every channel. Plugin API becomes incompatible. vu_meter digital mode was still using global peak calculation; switch it to playback channel like the rest. Remove some accumulated soil peaks inside pcm.c and make it more generic. Change-Id: Ib4d268d80b6a9d09915eea1c91eab483c1a2c009
115 lines
3.8 KiB
C
115 lines
3.8 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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* Copyright (C) 2011 by Michael Sevakis
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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_INTERNAL_H
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#define PCM_INTERNAL_H
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#include "config.h"
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/* Cheapo buffer align macro to align to the 16-16 PCM size */
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#define ALIGN_AUDIOBUF(start, size) \
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({ (start) = (void *)(((uintptr_t)(start) + 3) & ~3); \
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(size) &= ~3; })
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void pcm_do_peak_calculation(struct pcm_peaks *peaks, bool active,
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const void *addr, int count);
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/** The following are for internal use between pcm.c and target-
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specific portion **/
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static FORCE_INLINE enum pcm_dma_status pcm_call_status_cb(
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pcm_status_callback_type callback, enum pcm_dma_status status)
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{
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if (!callback)
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return status;
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return callback(status);
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}
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static FORCE_INLINE enum pcm_dma_status
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pcm_play_dma_status_callback(enum pcm_dma_status status)
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{
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extern enum pcm_dma_status
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(* volatile pcm_play_status_callback)(enum pcm_dma_status);
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return pcm_call_status_cb(pcm_play_status_callback, status);
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}
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/* Called by the bottom layer ISR when more data is needed. Returns true
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* if a new buffer is available, false otherwise. */
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bool pcm_play_dma_complete_callback(enum pcm_dma_status status,
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const void **addr, size_t *size);
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extern unsigned long pcm_curr_sampr;
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extern unsigned long pcm_sampr;
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extern int pcm_fsel;
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#ifdef HAVE_PCM_DMA_ADDRESS
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void * pcm_dma_addr(void *addr);
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#endif
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extern volatile bool pcm_playing;
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extern volatile bool pcm_paused;
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void pcm_play_dma_lock(void);
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void pcm_play_dma_unlock(void);
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void pcm_play_dma_init(void) INIT_ATTR;
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void pcm_play_dma_postinit(void);
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void pcm_play_dma_start(const void *addr, size_t size);
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void pcm_play_dma_stop(void);
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void pcm_play_dma_pause(bool pause);
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const void * pcm_play_dma_get_peak_buffer(int *count);
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void pcm_dma_apply_settings(void);
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#ifdef HAVE_RECORDING
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/* DMA transfer in is currently active */
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extern volatile bool pcm_recording;
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/* APIs implemented in the target-specific portion */
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void pcm_rec_dma_init(void);
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void pcm_rec_dma_close(void);
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void pcm_rec_dma_start(void *addr, size_t size);
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void pcm_rec_dma_stop(void);
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const void * pcm_rec_dma_get_peak_buffer(void);
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static FORCE_INLINE enum pcm_dma_status
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pcm_rec_dma_status_callback(enum pcm_dma_status status)
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{
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extern enum pcm_dma_status
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(* volatile pcm_rec_status_callback)(enum pcm_dma_status);
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return pcm_call_status_cb(pcm_rec_status_callback, status);
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}
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/* Called by the bottom layer ISR when more data is needed. Returns true
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* if a new buffer is available, false otherwise. */
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bool pcm_rec_dma_complete_callback(enum pcm_dma_status status,
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void **addr, size_t *size);
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#ifdef HAVE_PCM_REC_DMA_ADDRESS
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#define pcm_rec_dma_addr(addr) pcm_dma_addr(addr)
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#else
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#define pcm_rec_dma_addr(addr) addr
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#endif
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#endif /* HAVE_RECORDING */
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#endif /* PCM_INTERNAL_H */
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