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