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/*
**********************************************************************
* 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)
#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)
#else
# define DPD(level,x,y...) do { } while (0) /* not debugging: nothing */
# define DPF(level,x) do { } while (0)
#endif /* EMU10K1_DEBUG */
#define ERROR() DPF(1,"error\n")
/* DATA STRUCTURES */
struct emu10k1_waveout
{
u16 send_routing[3];
u8 send_a[3];
u8 send_b[3];
u8 send_c[3];
u8 send_d[3];
};
struct emu10k1_wavein
{
struct wiinst *ac97;
struct wiinst *mic;
struct wiinst *fx;
u8 recsrc;
u32 fxwc;
};
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;
int audio_num;
int audio1_num;
int mixer_num;
int 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 isaps;
};
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 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 */
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