1/*
2 **********************************************************************
3 *     cardwi.h -- header file for card wave input functions
4 *     Copyright 1999, 2000 Creative Labs, Inc.
5 *
6 **********************************************************************
7 *
8 *     Date                 Author          Summary of changes
9 *     ----                 ------          ------------------
10 *     October 20, 1999     Bertrand Lee    base code release
11 *
12 **********************************************************************
13 *
14 *     This program is free software; you can redistribute it and/or
15 *     modify it under the terms of the GNU General Public License as
16 *     published by the Free Software Foundation; either version 2 of
17 *     the License, or (at your option) any later version.
18 *
19 *     This program is distributed in the hope that it will be useful,
20 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
21 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
22 *     GNU General Public License for more details.
23 *
24 *     You should have received a copy of the GNU General Public
25 *     License along with this program; if not, write to the Free
26 *     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
27 *     USA.
28 *
29 **********************************************************************
30 */
31#ifndef _CARDWI_H
32#define _CARDWI_H
33
34#include "icardwav.h"
35#include "audio.h"
36#include "timer.h"
37
38struct wavein_buffer {
39	u16 ossfragshift;
40        u32 fragment_size;
41        u32 numfrags;
42	u32 hw_pos;		/* hardware cursor position */
43	u32 pos;		/* software cursor position */
44	u32 bytestocopy;	/* bytes of recorded data available */
45	u32 size;
46	u32 pages;
47	u32 sizereg;
48	u32 sizeregval;
49        u32 addrreg;
50        u32 idxreg;
51        u32 adcctl;
52	void *addr;
53	u8 cov;
54	dma_addr_t dma_handle;
55};
56
57struct wiinst
58{
59	u8 state;
60	struct emu_timer timer;
61	struct wave_format format;
62	struct wavein_buffer buffer;
63	wait_queue_head_t wait_queue;
64	u8 mmapped;
65	u32 total_recorded;	/* total bytes read() from device */
66	u32 blocks;
67	spinlock_t lock;
68	u8 recsrc;
69	u16 fxwc;
70};
71
72#define WAVEIN_MAXBUFSIZE	65536
73#define WAVEIN_MINBUFSIZE	368
74
75#define WAVEIN_DEFAULTFRAGLEN	100
76#define WAVEIN_DEFAULTBUFLEN	1000
77
78#define WAVEIN_MINFRAGSHIFT	8
79#define WAVEIN_MINFRAGS		2
80
81int emu10k1_wavein_open(struct emu10k1_wavedevice *);
82void emu10k1_wavein_close(struct emu10k1_wavedevice *);
83void emu10k1_wavein_start(struct emu10k1_wavedevice *);
84void emu10k1_wavein_stop(struct emu10k1_wavedevice *);
85void emu10k1_wavein_getxfersize(struct wiinst *, u32 *);
86int emu10k1_wavein_xferdata(struct wiinst *, u8 __user *, u32 *);
87int emu10k1_wavein_setformat(struct emu10k1_wavedevice *, struct wave_format *);
88void emu10k1_wavein_update(struct emu10k1_card *, struct wiinst *);
89
90
91#endif /* _CARDWI_H */
92