sound/oss/emu10k1/cardwi.h

   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
  38 struct 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
  57 struct 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
  81 int emu10k1_wavein_open(struct emu10k1_wavedevice *);
  82 void emu10k1_wavein_close(struct emu10k1_wavedevice *);
  83 void emu10k1_wavein_start(struct emu10k1_wavedevice *);
  84 void emu10k1_wavein_stop(struct emu10k1_wavedevice *);
  85 void emu10k1_wavein_getxfersize(struct wiinst *, u32 *);
  86 void emu10k1_wavein_xferdata(struct wiinst *, u8 __user *, u32 *);
  87 int emu10k1_wavein_setformat(struct emu10k1_wavedevice *, struct wave_format *);
  88 void emu10k1_wavein_update(struct emu10k1_card *, struct wiinst *);
  89
  90
  91 #endif /* _CARDWI_H */