patch-2.2.17 linux/drivers/sound/emu10k1/hwaccess.h

• Lines: 190
• Date: Mon Sep 4 18:39:21 2000
• Orig file: v2.2.16/drivers/sound/emu10k1/hwaccess.h
• Orig date: Thu Jan 1 01:00:00 1970

diff -u --recursive --new-file v2.2.16/drivers/sound/emu10k1/hwaccess.h linux/drivers/sound/emu10k1/hwaccess.h
@@ -0,0 +1,189 @@
+/*
+ **********************************************************************
+ *     hwaccess.h
+ *     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 _HWACCESS_H
+#define _HWACCESS_H
+
+#include <linux/fs.h>
+#include <linux/sound.h>
+#include <linux/soundcard.h>
+#include <linux/pci.h>
+
+#include "emu_wrapper.h"
+
+#define EMUPAGESIZE     4096            /* don't change */
+#define NUM_G           64              /* use all channels */
+#define NUM_FXSENDS     4               /* don't change */
+/* setting this to other than a power of two may break some applications */
+#define MAXBUFSIZE	65536
+#define MAXPAGES	8192 
+#define BUFMAXPAGES     (MAXBUFSIZE / PAGE_SIZE)
+
+enum GlobalErrorCode
+{
+	CTSTATUS_SUCCESS = 0x0000,
+	CTSTATUS_ERROR,
+	CTSTATUS_NOMEMORY,
+	CTSTATUS_INUSE,
+};
+
+#define FLAGS_AVAILABLE     0x0001
+#define FLAGS_READY         0x0002
+
+#define min(x,y) ((x) < (y)) ? (x) : (y)
+
+struct memhandle
+{
+	dma_addr_t dma_handle;
+	void *addr;
+	u32 size;
+};
+
+#define DEBUG_LEVEL 2
+
+#ifdef EMU10K1_DEBUG
+# define DPD(level,x,y...) do {if(level <= DEBUG_LEVEL) printk( KERN_NOTICE "emu10k1: %s: %d: " x , __FILE__ , __LINE__ , y );} while(0)
+# define DPF(level,x)   do {if(level <= DEBUG_LEVEL) printk( KERN_NOTICE "emu10k1: %s: %d: " x , __FILE__ , __LINE__ );} while(0)
+#define ERROR() DPF(1,"error\n");
+#else
+# define DPD(level,x,y...) do { } while (0) /* not debugging: nothing */
+# define DPF(level,x) do { } while (0)
+#define ERROR() do { } while (0)
+#endif /* EMU10K1_DEBUG */
+
+/* DATA STRUCTURES */
+
+struct emu10k1_card 
+{
+	struct list_head list;
+
+	struct memhandle	virtualpagetable;
+	struct memhandle	tankmem;
+	struct memhandle	silentpage;
+
+	spinlock_t		lock;
+
+	u8			voicetable[NUM_G];
+	u16			emupagetable[MAXPAGES];
+
+	struct list_head	timers;
+	unsigned		timer_delay;
+	spinlock_t		timer_lock;
+
+	struct pci_dev		*pci_dev;
+	unsigned long           iobase;
+	unsigned long		length;
+	unsigned short		model;
+	unsigned int irq; 
+
+	unsigned long	audio1_num;
+	unsigned long	audio2_num;
+	unsigned long	mixer_num;
+	unsigned long	midi_num;
+
+	struct emu10k1_waveout	*waveout;
+	struct emu10k1_wavein	*wavein;
+	struct emu10k1_mpuout	*mpuout;
+	struct emu10k1_mpuin	*mpuin;
+
+	u16			arrwVol[SOUND_MIXER_NRDEVICES + 1];
+	/* array is used from the member 1 to save (-1) operation */
+	u32			digmix[9 * 6 * 2];
+	unsigned int		modcnt;
+	struct semaphore	open_sem;
+	mode_t			open_mode;
+	wait_queue_head_t	open_wait;
+
+	u32	    mpuacqcount;	  // Mpu acquire count
+	u32	    has_toslink;	       // TOSLink detection
+
+	u8 chiprev;                    /* Chip revision                */
+};
+
+int emu10k1_addxmgr_alloc(u32, struct emu10k1_card *);
+void emu10k1_addxmgr_free(struct emu10k1_card *, int);
+
+#ifdef PRIVATE_PCM_VOLUME
+
+#define MAX_PCM_CHANNELS NUM_G 
+struct sblive_pcm_volume_rec {
+	struct files_struct *files; // identification of the same thread
+	u8 attn_l;		// attenuation for left channel
+	u8 attn_r;		// attenuation for right channel
+	u16 mixer;		// saved mixer value for return
+	u8 channel_l;		// idx of left channel
+	u8 channel_r;		// idx of right channel
+	int opened;		// counter - locks element
+};
+extern struct sblive_pcm_volume_rec sblive_pcm_volume[];
+extern u16 pcm_last_mixer;
+#endif
+
+
+#define ENABLE 			0xffffffff
+#define DISABLE 		0x00000000
+
+#define TIMEOUT 		    16384
+
+u32 srToPitch(u32);
+u8 sumVolumeToAttenuation(u32);
+
+extern struct list_head emu10k1_devs;
+
+/* Hardware Abstraction Layer access functions */
+
+void emu10k1_writefn0(struct emu10k1_card *, u32 , u32 );
+u32 emu10k1_readfn0(struct emu10k1_card *, u32 );
+
+void sblive_writeptr(struct emu10k1_card *, u32 , u32 , u32 );
+void sblive_writeptr_tag(struct emu10k1_card *card, u32 channel, ...);
+#define TAGLIST_END 0
+
+u32 sblive_readptr(struct emu10k1_card *, u32 , u32 );
+
+void emu10k1_irq_enable(struct emu10k1_card *, u32);
+void emu10k1_irq_disable(struct emu10k1_card *, u32);
+void emu10k1_set_stop_on_loop(struct emu10k1_card *, u32);
+void emu10k1_clear_stop_on_loop(struct emu10k1_card *, u32);
+
+/* AC97 Mixer access function */
+int sblive_readac97(struct emu10k1_card *, u8, u16 *);
+int sblive_writeac97(struct emu10k1_card *, u8, u16);
+int sblive_rmwac97(struct emu10k1_card *, u8, u16, u16);
+
+/* MPU access function*/
+int emu10k1_mpu_write_data(struct emu10k1_card *, u8);
+int emu10k1_mpu_read_data(struct emu10k1_card *, u8 *);
+int emu10k1_mpu_reset(struct emu10k1_card *);
+int emu10k1_mpu_acquire(struct emu10k1_card *);
+int emu10k1_mpu_release(struct emu10k1_card *);
+
+#endif  /* _HWACCESS_H */