cregit-Linux how code gets into the kernel

Release 4.7 sound/oss/dev_table.h

Directory: sound/oss
/*
 *      dev_table.h
 *
 *      Global definitions for device call tables
 *
 *
 * Copyright (C) by Hannu Savolainen 1993-1997
 *
 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
 * Version 2 (June 1991). See the "COPYING" file distributed with this software
 * for more info.
 */


#ifndef _DEV_TABLE_H_

#define _DEV_TABLE_H_

#include <linux/spinlock.h>
/*
 * Sound card numbers 27 to 999. (1 to 26 are defined in soundcard.h)
 * Numbers 1000 to N are reserved for driver's internal use.
 */


#define SNDCARD_DESKPROXL		27	
/* Compaq Deskpro XL */

#define SNDCARD_VIDC			28	
/* ARMs VIDC */

#define SNDCARD_SBPNP			29

#define SNDCARD_SOFTOSS			36

#define SNDCARD_VMIDI			37

#define SNDCARD_OPL3SA1			38	
/* Note: clash in msnd.h */

#define SNDCARD_OPL3SA1_SB		39

#define SNDCARD_OPL3SA1_MPU		40

#define SNDCARD_WAVEFRONT               41

#define SNDCARD_OPL3SA2                 42

#define SNDCARD_OPL3SA2_MPU             43

#define SNDCARD_WAVEARTIST              44	
/* Waveartist */

#define SNDCARD_OPL3SA2_MSS             45	
/* Originally missed */

#define SNDCARD_AD1816                  88

/*
 *      NOTE!   NOTE!   NOTE!   NOTE!
 *
 *      If you modify this file, please check the dev_table.c also.
 *
 *      NOTE!   NOTE!   NOTE!   NOTE!
 */


struct driver_info 
{
	
char *driver_id;
	
int card_subtype;	/* Driver specific. Usually 0 */
	
int card_type;		/*      From soundcard.h        */
	
char *name;
	
void (*attach) (struct address_info *hw_config);
	
int (*probe) (struct address_info *hw_config);
	
void (*unload) (struct address_info *hw_config);
};


struct card_info 
{
	
int card_type;	/* Link (search key) to the driver list */
	
struct address_info config;
	
int enabled;
	
void *for_driver_use;
};


/*
 * Device specific parameters (used only by dmabuf.c)
 */

#define MAX_SUB_BUFFERS		(32*MAX_REALTIME_FACTOR)


#define DMODE_NONE		0

#define DMODE_OUTPUT		PCM_ENABLE_OUTPUT

#define DMODE_INPUT		PCM_ENABLE_INPUT


struct dma_buffparms 
{
	
int      dma_mode;	/* DMODE_INPUT, DMODE_OUTPUT or DMODE_NONE */
	
int	 closing;

	/*
         * Pointers to raw buffers
         */

  	
char     *raw_buf;
    	
unsigned long   raw_buf_phys;
	
int buffsize;

     	/*
         * Device state tables
         */

	
unsigned long flags;

#define DMA_BUSY	0x00000001

#define DMA_RESTART	0x00000002

#define DMA_ACTIVE	0x00000004

#define DMA_STARTED	0x00000008

#define DMA_EMPTY	0x00000010	

#define DMA_ALLOC_DONE	0x00000020

#define DMA_SYNCING	0x00000040

#define DMA_DIRTY	0x00000080

#define DMA_POST	0x00000100

#define DMA_NODMA	0x00000200

#define DMA_NOTIMEOUT	0x00000400

	
int      open_mode;

	/*
         * Queue parameters.
         */
	
int      qlen;
	
int      qhead;
	
int      qtail;
	
spinlock_t lock;
		
	
int	 cfrag;	/* Current incomplete fragment (write) */

	
int      nbufs;
	
int      counts[MAX_SUB_BUFFERS];
	
int      subdivision;

	
int      fragment_size;
        
int	 needs_reorg;
	
int	 max_fragments;

	
int	 bytes_in_use;

	
int	 underrun_count;
	
unsigned long	 byte_counter;
	
unsigned long	 user_counter;
	
unsigned long	 max_byte_counter;
	
int	 data_rate; /* Bytes/second */

	
int	 mapping_flags;

#define			DMA_MAP_MAPPED		0x00000001
	
char	neutral_byte;
	
int	dma;		/* DMA channel */

	
int     applic_profile;	/* Application profile (APF_*) */
	/* Interrupt callback stuff */
	
void (*audio_callback) (int dev, int parm);
	
int callback_parm;

	
int	 buf_flags[MAX_SUB_BUFFERS];

#define		 BUFF_EOF		0x00000001 /* Increment eof count */

#define		 BUFF_DIRTY		0x00000002 /* Buffer written */
};

/*
 * Structure for use with various microcontrollers and DSP processors 
 * in the recent sound cards.
 */

typedef struct coproc_operations 
{
	
char name[64];
	
struct module *owner;
	
int (*open) (void *devc, int sub_device);
	
void (*close) (void *devc, int sub_device);
	
int (*ioctl) (void *devc, unsigned int cmd, void __user * arg, int local);
	
void (*reset) (void *devc);

	
void *devc;		/* Driver specific info */
} 
coproc_operations;


struct audio_driver 
{
	
struct module *owner;
	
int (*open) (int dev, int mode);
	
void (*close) (int dev);
	
void (*output_block) (int dev, unsigned long buf, 
			      int count, int intrflag);
	
void (*start_input) (int dev, unsigned long buf, 
			     int count, int intrflag);
	
int (*ioctl) (int dev, unsigned int cmd, void __user * arg);
	
int (*prepare_for_input) (int dev, int bufsize, int nbufs);
	
int (*prepare_for_output) (int dev, int bufsize, int nbufs);
	
void (*halt_io) (int dev);
	
int (*local_qlen)(int dev);
	
void (*copy_user) (int dev,
			char *localbuf, int localoffs,
                        const char __user *userbuf, int useroffs,
                        int max_in, int max_out,
                        int *used, int *returned,
                        int len);
	
void (*halt_input) (int dev);
	
void (*halt_output) (int dev);
	
void (*trigger) (int dev, int bits);
	
int (*set_speed)(int dev, int speed);
	
unsigned int (*set_bits)(int dev, unsigned int bits);
	
short (*set_channels)(int dev, short channels);
	
void (*postprocess_write)(int dev); 	/* Device spesific postprocessing for written data */
	
void (*preprocess_read)(int dev); 	/* Device spesific preprocessing for read data */
	
void (*mmap)(int dev);
};


struct audio_operations 
{
        
char name[128];
	
int flags;

#define NOTHING_SPECIAL 	0x00

#define NEEDS_RESTART		0x01

#define DMA_AUTOMODE		0x02

#define DMA_DUPLEX		0x04

#define DMA_PSEUDO_AUTOMODE	0x08

#define DMA_HARDSTOP		0x10

#define DMA_EXACT		0x40

#define DMA_NORESET		0x80
	
int  format_mask;	/* Bitmask for supported audio formats */
	
void *devc;		/* Driver specific info */
	
struct audio_driver *d;
	
void *portc;		/* Driver specific info */
	

struct dma_buffparms *dmap_in, *dmap_out;
	
struct coproc_operations *coproc;
	
int mixer_dev;
	
int enable_bits;
 	
int open_mode;
	
int go;
	
int min_fragment;	/* 0 == unlimited */
	
int max_fragment;	/* 0 == unlimited */
	
int parent_dev;		/* 0 -> no parent, 1 to n -> parent=parent_dev+1 */

	/* fields formerly in dmabuf.c */
	
wait_queue_head_t in_sleeper;
	
wait_queue_head_t out_sleeper;
	
wait_queue_head_t poll_sleeper;

	/* fields formerly in audio.c */
	
int audio_mode;


#define		AM_NONE		0

#define		AM_WRITE	OPEN_WRITE

#define 	AM_READ		OPEN_READ

	
int local_format;
	
int audio_format;
	
int local_conversion;

#define CNV_MU_LAW	0x00000001

	/* large structures at the end to keep offsets small */
	
struct dma_buffparms dmaps[2];
};

int *load_mixer_volumes(char *name, int *levels, int present);


struct mixer_operations 
{
	
struct module *owner;
	
char id[16];
	
char name[64];
	
int (*ioctl) (int dev, unsigned int cmd, void __user * arg);
	
	
void *devc;
	
int modify_counter;
};


struct synth_operations 
{
	
struct module *owner;
	
char *id;	/* Unique identifier (ASCII) max 29 char */
	
struct synth_info *info;
	
int midi_dev;
	
int synth_type;
	
int synth_subtype;

	
int (*open) (int dev, int mode);
	
void (*close) (int dev);
	
int (*ioctl) (int dev, unsigned int cmd, void __user * arg);
	
int (*kill_note) (int dev, int voice, int note, int velocity);
	
int (*start_note) (int dev, int voice, int note, int velocity);
	
int (*set_instr) (int dev, int voice, int instr);
	
void (*reset) (int dev);
	
void (*hw_control) (int dev, unsigned char *event);
	
int (*load_patch) (int dev, int format, const char __user *addr,
	     int count, int pmgr_flag);
	
void (*aftertouch) (int dev, int voice, int pressure);
	
void (*controller) (int dev, int voice, int ctrl_num, int value);
	
void (*panning) (int dev, int voice, int value);
	
void (*volume_method) (int dev, int mode);
	
void (*bender) (int dev, int chn, int value);
	
int (*alloc_voice) (int dev, int chn, int note, struct voice_alloc_info *alloc);
	
void (*setup_voice) (int dev, int voice, int chn);
	
int (*send_sysex)(int dev, unsigned char *bytes, int len);

 	
struct voice_alloc_info alloc;
 	
struct channel_info chn_info[16];
	
int emulation;

#define	EMU_GM			1	/* General MIDI */

#define	EMU_XG			2	/* Yamaha XG */

#define MAX_SYSEX_BUF	64
	
unsigned char sysex_buf[MAX_SYSEX_BUF];
	
int sysex_ptr;
};


struct midi_input_info 
{
	/* MIDI input scanner variables */

#define MI_MAX	10
	
volatile int             m_busy;
    	
unsigned char   m_buf[MI_MAX];
	
unsigned char	m_prev_status;	/* For running status */
    	
int             m_ptr;

#define MST_INIT			0

#define MST_DATA			1

#define MST_SYSEX			2
    	
int             m_state;
    	
int             m_left;
};


struct midi_operations 
{
	
struct module *owner;
	
struct midi_info info;
	
struct synth_operations *converter;
	
struct midi_input_info in_info;
	
int (*open) (int dev, int mode,
		void (*inputintr)(int dev, unsigned char data),
		void (*outputintr)(int dev)
		);
	
void (*close) (int dev);
	
int (*ioctl) (int dev, unsigned int cmd, void __user * arg);
	
int (*outputc) (int dev, unsigned char data);
	
int (*start_read) (int dev);
	
int (*end_read) (int dev);
	
void (*kick)(int dev);
	
int (*command) (int dev, unsigned char *data);
	
int (*buffer_status) (int dev);
	
int (*prefix_cmd) (int dev, unsigned char status);
	
struct coproc_operations *coproc;
	
void *devc;
};


struct sound_lowlev_timer 
{
	
int dev;
	
int priority;
	
unsigned int (*tmr_start)(int dev, unsigned int usecs);
	
void (*tmr_disable)(int dev);
	
void (*tmr_restart)(int dev);
};


struct sound_timer_operations 
{
	
struct module *owner;
	
struct sound_timer_info info;
	
int priority;
	
int devlink;
	
int (*open)(int dev, int mode);
	
void (*close)(int dev);
	
int (*event)(int dev, unsigned char *ev);
	
unsigned long (*get_time)(int dev);
	
int (*ioctl) (int dev, unsigned int cmd, void __user * arg);
	
void (*arm_timer)(int dev, long time);
};

extern struct sound_timer_operations default_sound_timer;

extern struct audio_operations *audio_devs[MAX_AUDIO_DEV];
extern int num_audiodevs;
extern struct mixer_operations *mixer_devs[MAX_MIXER_DEV];
extern int num_mixers;
extern struct synth_operations *synth_devs[MAX_SYNTH_DEV+MAX_MIDI_DEV];
extern int num_synths;
extern struct midi_operations *midi_devs[MAX_MIDI_DEV];
extern int num_midis;
extern struct sound_timer_operations * sound_timer_devs[MAX_TIMER_DEV];
extern int num_sound_timers;

extern int sound_map_buffer (int dev, struct dma_buffparms *dmap, buffmem_desc *info);
void sound_timer_init (struct sound_lowlev_timer *t, char *name);
void sound_dma_intr (int dev, struct dma_buffparms *dmap, int chan);


#define AUDIO_DRIVER_VERSION	2

#define MIXER_DRIVER_VERSION	2
int sound_install_audiodrv(int vers, char *name, struct audio_driver *driver,
			int driver_size, int flags, unsigned int format_mask,
			void *devc, int dma1, int dma2);
int sound_install_mixer(int vers, char *name, struct mixer_operations *driver,
			int driver_size, void *devc);

void sound_unload_audiodev(int dev);
void sound_unload_mixerdev(int dev);
void sound_unload_mididev(int dev);
void sound_unload_synthdev(int dev);
void sound_unload_timerdev(int dev);
int sound_alloc_mixerdev(void);
int sound_alloc_timerdev(void);
int sound_alloc_synthdev(void);
int sound_alloc_mididev(void);
#endif	/* _DEV_TABLE_H_ */


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PersonTokensPropCommitsCommitProp
pre-gitpre-git188298.28%3291.43%
al viroal viro201.04%12.86%
peter waechtlerpeter waechtler80.42%12.86%
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Directory: sound/oss
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