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