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Diffstat (limited to 'sound/oss/emu10k1/cardwi.h')
-rw-r--r-- | sound/oss/emu10k1/cardwi.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/sound/oss/emu10k1/cardwi.h b/sound/oss/emu10k1/cardwi.h new file mode 100644 index 000000000000..15cfb9b35596 --- /dev/null +++ b/sound/oss/emu10k1/cardwi.h @@ -0,0 +1,91 @@ +/* + ********************************************************************** + * 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 *); +void 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 */ |