| 1 | /* $Id: cardwo.h 142 2000-04-23 14:55:46Z ktk $ */
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| 2 |
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| 3 | /*
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| 4 | **********************************************************************
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| 5 | * cardwo.h -- header file for card wave out functions
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| 6 | * Copyright 1999, 2000 Creative Labs, Inc.
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| 7 | *
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| 8 | **********************************************************************
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| 9 | *
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| 10 | * Date Author Summary of changes
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| 11 | * ---- ------ ------------------
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| 12 | * October 20, 1999 Bertrand Lee base code release
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| 13 | *
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| 14 | **********************************************************************
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| 15 | *
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| 16 | * This program is free software; you can redistribute it and/or
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| 17 | * modify it under the terms of the GNU General Public License as
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| 18 | * published by the Free Software Foundation; either version 2 of
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| 19 | * the License, or (at your option) any later version.
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| 20 | *
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| 21 | * This program is distributed in the hope that it will be useful,
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| 22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 24 | * GNU General Public License for more details.
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| 25 | *
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| 26 | * You should have received a copy of the GNU General Public
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| 27 | * License along with this program; if not, write to the Free
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| 28 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
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| 29 | * USA.
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| 30 | *
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| 31 | **********************************************************************
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| 32 | */
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| 33 |
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| 34 | #ifndef _CARDWO_H
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| 35 | #define _CARDWO_H
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| 36 |
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| 37 | #include "icardwav.h"
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| 38 |
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| 39 | struct wave_xferbuf
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| 40 | {
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| 41 | u32 xferpos; /* where to write() next */
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| 42 | u32 silence_xferpos; /* where to xx_fillsilence() next */
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| 43 | u32 xferbufsize; /* transfer buffer size */
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| 44 | u32 numpages; /* number of pages in transfer buffer */
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| 45 | void **xferbuffer; /* pointer to the transfer buffer */
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| 46 | int is_stereo;
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| 47 | int is_16bit;
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| 48 | int bytespersample;
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| 49 | u32 stopposition;
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| 50 | };
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| 51 |
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| 52 | struct wave_out
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| 53 | {
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| 54 | u32 state;
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| 55 | struct emu_voice *voice;
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| 56 | int emupageindex;
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| 57 | struct emu_timer *timer;
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| 58 | struct wave_xferbuf *wavexferbuf;
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| 59 | void **pagetable;
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| 60 | u32 callbacksize;
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| 61 | u32 localvol;
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| 62 | u32 localreverb;
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| 63 | u32 localchorus;
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| 64 | u32 globalvolFactor;
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| 65 | u32 globalreverbFactor;
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| 66 | u32 globalchorusFactor;
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| 67 | int setpos;
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| 68 | u32 position;
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| 69 | struct wave_format wave_fmt;
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| 70 | int fill_silence;
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| 71 | };
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| 72 |
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| 73 | /* setting this to other than a power of two
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| 74 | may break some applications */
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| 75 | #define WAVEOUT_MAXBUFSIZE 32768
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| 76 | #define WAVEOUT_MINBUFSIZE 64
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| 77 |
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| 78 | #define WAVEOUT_DEFAULTFRAGLEN 100 /* Time to play a fragment in ms (latency) */
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| 79 | #define WAVEOUT_DEFAULTBUFLEN 1000 /* Time to play the entire buffer in ms */
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| 80 |
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| 81 | #define WAVEOUT_MINFRAGSHIFT 4
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| 82 |
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| 83 | struct woinst
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| 84 | {
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| 85 | struct wave_out *wave_out;
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| 86 | struct wave_format wave_fmt;
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| 87 | u16 ossfragshift;
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| 88 | u32 fragment_size;
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| 89 | u32 numfrags;
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| 90 | wait_queue_head_t wait_queue;
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| 91 | int mapped;
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| 92 | u32 total_copied; /* total number of bytes written() to the buffer (excluding silence) */
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| 93 | u32 total_played; /* total number of bytes played including silence */
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| 94 | u32 silence_bytes; /* total number of bytes xx_fillsilence() to the buffer */
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| 95 | u32 blocks;
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| 96 | u32 curpos; /* hardware cursor position */
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| 97 | u32 device;
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| 98 | spinlock_t lock;
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| 99 | };
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| 100 |
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| 101 | struct emu10k1_waveout
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| 102 | {
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| 103 | u32 globalvol;
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| 104 | u32 mute;
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| 105 | u32 left;
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| 106 | u32 right;
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| 107 | u32 globalreverb;
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| 108 | u32 globalchorus;
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| 109 | };
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| 110 |
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| 111 | int emu10k1_waveout_open(struct emu10k1_wavedevice *);
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| 112 | void emu10k1_waveout_close(struct emu10k1_wavedevice *);
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| 113 | int emu10k1_waveout_start(struct emu10k1_wavedevice *);
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| 114 | void emu10k1_waveout_stop(struct emu10k1_wavedevice *);
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| 115 | void emu10k1_waveout_getxfersize(struct woinst*, u32 *);
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| 116 | void emu10k1_waveout_xferdata(struct woinst*, u8*, u32 *);
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| 117 | void emu10k1_waveout_fillsilence(struct woinst*);
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| 118 | int emu10k1_waveout_setformat(struct emu10k1_wavedevice*);
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| 119 | void emu10k1_waveout_update(struct woinst*);
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| 120 |
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| 121 | #endif /* _CARDWO_H */
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