patch-2.3.99-pre6 linux/drivers/sound/emu10k1/cardwo.h

• Lines: 119
• Date: Fri Apr 21 16:08:45 2000
• Orig file: v2.3.99-pre5/linux/drivers/sound/emu10k1/cardwo.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.99-pre5/linux/drivers/sound/emu10k1/cardwo.h linux/drivers/sound/emu10k1/cardwo.h
@@ -0,0 +1,118 @@
+/*     
+ **********************************************************************
+ *     cardwo.h -- header file for card wave out 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 _CARDWO_H
+#define _CARDWO_H
+
+#include "icardwav.h"
+
+struct wave_xferbuf 
+{
+	u32     xferpos;
+	u32     silence_xferpos;
+	u32     xferbufsize;     /* transfer buffer size */
+	u32     numpages;        /* number of pages in transfer buffer */
+	void    **xferbuffer;    /* pointer to the transfer buffer */
+	int     is_stereo;
+	int     is_16bit;
+	int	bytespersample;
+	u32     stopposition;
+};
+
+struct wave_out
+{
+    u32             state;
+    struct emu_voice *voice;
+    int             emupageindex;
+    struct emu_timer *timer;
+    struct wave_xferbuf *wavexferbuf;
+    void 	    **pagetable;
+    u32             callbacksize;
+    u32             localvol;
+    u32             localreverb;
+    u32             localchorus;
+    u32             globalvolFactor;
+    u32             globalreverbFactor;
+    u32             globalchorusFactor;
+    int             setpos;
+    u32             position;
+    struct wave_format      wave_fmt;
+    int             fill_silence;
+};
+
+/* setting this to other than a power of two
+   may break some applications */
+#define WAVEOUT_MAXBUFSIZE          32768 
+#define WAVEOUT_MINBUFSIZE	    64
+
+#define WAVEOUT_DEFAULTFRAGLEN      100 /* Time to play a fragment in ms (latency) */
+#define WAVEOUT_DEFAULTBUFLEN       1000 /* Time to play the entire buffer in ms */
+
+#define WAVEOUT_MINFRAGSHIFT	4
+
+struct woinst 
+{
+        struct wave_out *wave_out;
+        struct wave_format wave_fmt;
+        u16 ossfragshift;
+        u32 fragment_size;
+        u32 numfrags;
+        wait_queue_head_t wait_queue;
+        int mapped;
+        u32 total_copied;
+        u32 total_played;
+        u32 blocks;
+	u32 curpos;
+	u32 device;
+	spinlock_t lock;
+};
+
+struct emu10k1_waveout
+{
+	u32 globalvol;
+	u32 mute;
+	u32 left;
+	u32 right;
+	u32 globalreverb;
+	u32 globalchorus;
+};
+
+int emu10k1_waveout_open(struct emu10k1_wavedevice *);
+void emu10k1_waveout_close(struct emu10k1_wavedevice *);
+int emu10k1_waveout_start(struct emu10k1_wavedevice *);
+void emu10k1_waveout_stop(struct emu10k1_wavedevice *);
+void emu10k1_waveout_getxfersize(struct wave_out *, u32 *, u32 *, u32 *);
+void emu10k1_waveout_xferdata(struct woinst*, u8*, u32 *);
+void emu10k1_waveout_fillsilence(struct woinst*);
+int emu10k1_waveout_setformat(struct emu10k1_wavedevice*);
+int emu10k1_waveout_getcontrol(struct wave_out*, u32, u32 *);
+
+#endif /* _CARDWO_H */