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92 lines
2.8 KiB
92 lines
2.8 KiB
20 years ago
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/*
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**********************************************************************
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* cardwi.h -- header file for card wave input functions
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* Copyright 1999, 2000 Creative Labs, Inc.
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*
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**********************************************************************
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*
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* Date Author Summary of changes
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* ---- ------ ------------------
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* October 20, 1999 Bertrand Lee base code release
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*
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**********************************************************************
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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 as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
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* USA.
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*
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**********************************************************************
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*/
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#ifndef _CARDWI_H
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#define _CARDWI_H
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#include "icardwav.h"
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#include "audio.h"
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#include "timer.h"
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struct wavein_buffer {
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u16 ossfragshift;
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u32 fragment_size;
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u32 numfrags;
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u32 hw_pos; /* hardware cursor position */
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u32 pos; /* software cursor position */
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u32 bytestocopy; /* bytes of recorded data available */
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u32 size;
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u32 pages;
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u32 sizereg;
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u32 sizeregval;
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u32 addrreg;
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u32 idxreg;
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u32 adcctl;
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void *addr;
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u8 cov;
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dma_addr_t dma_handle;
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};
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struct wiinst
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{
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u8 state;
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struct emu_timer timer;
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struct wave_format format;
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struct wavein_buffer buffer;
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wait_queue_head_t wait_queue;
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u8 mmapped;
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u32 total_recorded; /* total bytes read() from device */
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u32 blocks;
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spinlock_t lock;
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u8 recsrc;
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u16 fxwc;
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};
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#define WAVEIN_MAXBUFSIZE 65536
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#define WAVEIN_MINBUFSIZE 368
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#define WAVEIN_DEFAULTFRAGLEN 100
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#define WAVEIN_DEFAULTBUFLEN 1000
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#define WAVEIN_MINFRAGSHIFT 8
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#define WAVEIN_MINFRAGS 2
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int emu10k1_wavein_open(struct emu10k1_wavedevice *);
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void emu10k1_wavein_close(struct emu10k1_wavedevice *);
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void emu10k1_wavein_start(struct emu10k1_wavedevice *);
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void emu10k1_wavein_stop(struct emu10k1_wavedevice *);
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void emu10k1_wavein_getxfersize(struct wiinst *, u32 *);
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void emu10k1_wavein_xferdata(struct wiinst *, u8 __user *, u32 *);
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int emu10k1_wavein_setformat(struct emu10k1_wavedevice *, struct wave_format *);
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void emu10k1_wavein_update(struct emu10k1_card *, struct wiinst *);
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#endif /* _CARDWI_H */
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