[linux.git] / sound / oss / dev_table.h

/*
 *	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 offs, 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_ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* dev_table.h
	3	*
	4	* Global definitions for device call tables
	5	*
	6	*
	7	* Copyright (C) by Hannu Savolainen 1993-1997
	8	*
	9	* OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
	10	* Version 2 (June 1991). See the "COPYING" file distributed with this software
	11	* for more info.
	12	*/
	13
	14
	15	#ifndef _DEV_TABLE_H_
	16	#define _DEV_TABLE_H_
	17
	18	#include <linux/spinlock.h>
	19	/*
	20	* Sound card numbers 27 to 999. (1 to 26 are defined in soundcard.h)
	21	* Numbers 1000 to N are reserved for driver's internal use.
	22	*/
	23
	24	#define SNDCARD_DESKPROXL 27 /* Compaq Deskpro XL */
	25	#define SNDCARD_VIDC 28 /* ARMs VIDC */
	26	#define SNDCARD_SBPNP 29
	27	#define SNDCARD_SOFTOSS 36
	28	#define SNDCARD_VMIDI 37
	29	#define SNDCARD_OPL3SA1 38 /* Note: clash in msnd.h */
	30	#define SNDCARD_OPL3SA1_SB 39
	31	#define SNDCARD_OPL3SA1_MPU 40
	32	#define SNDCARD_WAVEFRONT 41
	33	#define SNDCARD_OPL3SA2 42
	34	#define SNDCARD_OPL3SA2_MPU 43
	35	#define SNDCARD_WAVEARTIST 44 /* Waveartist */
	36	#define SNDCARD_OPL3SA2_MSS 45 /* Originally missed */
	37	#define SNDCARD_AD1816 88
	38
	39	/*
	40	* NOTE! NOTE! NOTE! NOTE!
	41	*
	42	* If you modify this file, please check the dev_table.c also.
	43	*
	44	* NOTE! NOTE! NOTE! NOTE!
	45	*/
	46
	47	struct driver_info
	48	{
	49	char *driver_id;
	50	int card_subtype; /* Driver specific. Usually 0 */
	51	int card_type; /* From soundcard.h */
	52	char *name;
	53	void (attach) (struct address_info hw_config);
	54	int (probe) (struct address_info hw_config);
	55	void (unload) (struct address_info hw_config);
	56	};
	57
	58	struct card_info
	59	{
	60	int card_type; /* Link (search key) to the driver list */
	61	struct address_info config;
	62	int enabled;
	63	void *for_driver_use;
	64	};
65
66
67	/*
68	* Device specific parameters (used only by dmabuf.c)
69	*/
70	#define MAX_SUB_BUFFERS (32*MAX_REALTIME_FACTOR)
71
72	#define DMODE_NONE 0
73	#define DMODE_OUTPUT PCM_ENABLE_OUTPUT
74	#define DMODE_INPUT PCM_ENABLE_INPUT
75
76	struct dma_buffparms
77	{
78	int dma_mode; /* DMODE_INPUT, DMODE_OUTPUT or DMODE_NONE */
79	int closing;
80
81	/*
82	* Pointers to raw buffers
83	*/
84
85	char *raw_buf;
86	unsigned long raw_buf_phys;
87	int buffsize;
88
89	/*
90	* Device state tables
91	*/
92
93	unsigned long flags;
94	#define DMA_BUSY 0x00000001
95	#define DMA_RESTART 0x00000002
96	#define DMA_ACTIVE 0x00000004
97	#define DMA_STARTED 0x00000008
98	#define DMA_EMPTY 0x00000010
99	#define DMA_ALLOC_DONE 0x00000020
100	#define DMA_SYNCING 0x00000040
101	#define DMA_DIRTY 0x00000080
102	#define DMA_POST 0x00000100
103	#define DMA_NODMA 0x00000200
104	#define DMA_NOTIMEOUT 0x00000400
105
106	int open_mode;
107
108	/*
109	* Queue parameters.
110	*/
111	int qlen;
112	int qhead;
113	int qtail;
114	spinlock_t lock;
115
116	int cfrag; /* Current incomplete fragment (write) */
117
118	int nbufs;
119	int counts[MAX_SUB_BUFFERS];
120	int subdivision;
121
122	int fragment_size;
123	int needs_reorg;
124	int max_fragments;
125
126	int bytes_in_use;
127
128	int underrun_count;
129	unsigned long byte_counter;
130	unsigned long user_counter;
131	unsigned long max_byte_counter;
132	int data_rate; /* Bytes/second */
133
134	int mapping_flags;
135	#define DMA_MAP_MAPPED 0x00000001
136	char neutral_byte;
137	int dma; /* DMA channel */
138
139	int applic_profile; /* Application profile (APF_) /
140	/* Interrupt callback stuff */
141	void (*audio_callback) (int dev, int parm);
142	int callback_parm;
143
144	int buf_flags[MAX_SUB_BUFFERS];
145	#define BUFF_EOF 0x00000001 /* Increment eof count */
146	#define BUFF_DIRTY 0x00000002 /* Buffer written */
147	};
148
149	/*
150	* Structure for use with various microcontrollers and DSP processors
151	* in the recent sound cards.
152	*/
153	typedef struct coproc_operations
154	{
155	char name[64];
156	struct module *owner;
157	int (open) (void devc, int sub_device);
158	void (close) (void devc, int sub_device);
159	int (ioctl) (void devc, unsigned int cmd, void __user * arg, int local);
160	void (reset) (void devc);
161
162	void devc; / Driver specific info */
163	} coproc_operations;
164
165	struct audio_driver
166	{
167	struct module *owner;
168	int (*open) (int dev, int mode);
169	void (*close) (int dev);
170	void (*output_block) (int dev, unsigned long buf,
171	int count, int intrflag);
172	void (*start_input) (int dev, unsigned long buf,
173	int count, int intrflag);
174	int (ioctl) (int dev, unsigned int cmd, void __user arg);
175	int (*prepare_for_input) (int dev, int bufsize, int nbufs);
176	int (*prepare_for_output) (int dev, int bufsize, int nbufs);
177	void (*halt_io) (int dev);
178	int (*local_qlen)(int dev);
179	void (*copy_user) (int dev,
180	char *localbuf, int localoffs,
181	const char __user *userbuf, int useroffs,
182	int max_in, int max_out,
183	int used, int returned,
184	int len);
185	void (*halt_input) (int dev);
186	void (*halt_output) (int dev);
187	void (*trigger) (int dev, int bits);
188	int (*set_speed)(int dev, int speed);
189	unsigned int (*set_bits)(int dev, unsigned int bits);
190	short (*set_channels)(int dev, short channels);
191	void (postprocess_write)(int dev); / Device spesific postprocessing for written data */
192	void (preprocess_read)(int dev); / Device spesific preprocessing for read data */
193	void (*mmap)(int dev);
194	};
195
196	struct audio_operations
197	{
198	char name[128];
199	int flags;
200	#define NOTHING_SPECIAL 0x00
201	#define NEEDS_RESTART 0x01
202	#define DMA_AUTOMODE 0x02
203	#define DMA_DUPLEX 0x04
204	#define DMA_PSEUDO_AUTOMODE 0x08
205	#define DMA_HARDSTOP 0x10
206	#define DMA_EXACT 0x40
207	#define DMA_NORESET 0x80
208	int format_mask; /* Bitmask for supported audio formats */
209	void devc; / Driver specific info */
210	struct audio_driver *d;
211	void portc; / Driver specific info */
212	struct dma_buffparms dmap_in, dmap_out;
213	struct coproc_operations *coproc;
214	int mixer_dev;
215	int enable_bits;
216	int open_mode;
217	int go;
218	int min_fragment; /* 0 == unlimited */
219	int max_fragment; /* 0 == unlimited */
220	int parent_dev; /* 0 -> no parent, 1 to n -> parent=parent_dev+1 */
221
222	/* fields formerly in dmabuf.c */
223	wait_queue_head_t in_sleeper;
224	wait_queue_head_t out_sleeper;
225	wait_queue_head_t poll_sleeper;
226
227	/* fields formerly in audio.c */
228	int audio_mode;
229
230	#define AM_NONE 0
231	#define AM_WRITE OPEN_WRITE
232	#define AM_READ OPEN_READ
233
234	int local_format;
235	int audio_format;
236	int local_conversion;
237	#define CNV_MU_LAW 0x00000001
238
239	/* large structures at the end to keep offsets small */
240	struct dma_buffparms dmaps[2];
241	};
242
243	int load_mixer_volumes(char name, int *levels, int present);
244
245	struct mixer_operations
246	{
247	struct module *owner;
248	char id[16];
249	char name[64];
250	int (ioctl) (int dev, unsigned int cmd, void __user arg);
251
252	void *devc;
253	int modify_counter;
254	};
255
256	struct synth_operations
257	{
258	struct module *owner;
259	char id; / Unique identifier (ASCII) max 29 char */
260	struct synth_info *info;
261	int midi_dev;
262	int synth_type;
263	int synth_subtype;
264
265	int (*open) (int dev, int mode);
266	void (*close) (int dev);
267	int (ioctl) (int dev, unsigned int cmd, void __user arg);
268	int (*kill_note) (int dev, int voice, int note, int velocity);
269	int (*start_note) (int dev, int voice, int note, int velocity);
270	int (*set_instr) (int dev, int voice, int instr);
271	void (*reset) (int dev);
272	void (hw_control) (int dev, unsigned char event);
273	int (load_patch) (int dev, int format, const char __user addr,
274	int offs, int count, int pmgr_flag);
275	void (*aftertouch) (int dev, int voice, int pressure);
276	void (*controller) (int dev, int voice, int ctrl_num, int value);
277	void (*panning) (int dev, int voice, int value);
278	void (*volume_method) (int dev, int mode);
279	void (*bender) (int dev, int chn, int value);
280	int (alloc_voice) (int dev, int chn, int note, struct voice_alloc_info alloc);
281	void (*setup_voice) (int dev, int voice, int chn);
282	int (send_sysex)(int dev, unsigned char bytes, int len);
283
284	struct voice_alloc_info alloc;
285	struct channel_info chn_info[16];
286	int emulation;
287	#define EMU_GM 1 /* General MIDI */
288	#define EMU_XG 2 /* Yamaha XG */
289	#define MAX_SYSEX_BUF 64
290	unsigned char sysex_buf[MAX_SYSEX_BUF];
291	int sysex_ptr;
292	};
293
294	struct midi_input_info
295	{
296	/* MIDI input scanner variables */
297	#define MI_MAX 10
298	volatile int m_busy;
299	unsigned char m_buf[MI_MAX];
300	unsigned char m_prev_status; /* For running status */
301	int m_ptr;
302	#define MST_INIT 0
303	#define MST_DATA 1
304	#define MST_SYSEX 2
305	int m_state;
306	int m_left;
307	};
308
309	struct midi_operations
310	{
311	struct module *owner;
312	struct midi_info info;
313	struct synth_operations *converter;
314	struct midi_input_info in_info;
315	int (*open) (int dev, int mode,
316	void (*inputintr)(int dev, unsigned char data),
317	void (*outputintr)(int dev)
318	);
319	void (*close) (int dev);
320	int (ioctl) (int dev, unsigned int cmd, void __user arg);
321	int (*outputc) (int dev, unsigned char data);
322	int (*start_read) (int dev);
323	int (*end_read) (int dev);
324	void (*kick)(int dev);
325	int (command) (int dev, unsigned char data);
326	int (*buffer_status) (int dev);
327	int (*prefix_cmd) (int dev, unsigned char status);
328	struct coproc_operations *coproc;
329	void *devc;
330	};
331
332	struct sound_lowlev_timer
333	{
334	int dev;
335	int priority;
336	unsigned int (*tmr_start)(int dev, unsigned int usecs);
337	void (*tmr_disable)(int dev);
338	void (*tmr_restart)(int dev);
339	};
340
341	struct sound_timer_operations
342	{
343	struct module *owner;
344	struct sound_timer_info info;
345	int priority;
346	int devlink;
347	int (*open)(int dev, int mode);
348	void (*close)(int dev);
349	int (event)(int dev, unsigned char ev);
350	unsigned long (*get_time)(int dev);
351	int (ioctl) (int dev, unsigned int cmd, void __user arg);
352	void (*arm_timer)(int dev, long time);
353	};
354
1da177e4	355	extern struct sound_timer_operations default_sound_timer;
ece7f77b	356
1da177e4 LT	357	extern struct audio_operations *audio_devs[MAX_AUDIO_DEV];
	358	extern int num_audiodevs;
	359	extern struct mixer_operations *mixer_devs[MAX_MIXER_DEV];
	360	extern int num_mixers;
	361	extern struct synth_operations *synth_devs[MAX_SYNTH_DEV+MAX_MIDI_DEV];
	362	extern int num_synths;
	363	extern struct midi_operations *midi_devs[MAX_MIDI_DEV];
	364	extern int num_midis;
	365	extern struct sound_timer_operations * sound_timer_devs[MAX_TIMER_DEV];
	366	extern int num_sound_timers;
1da177e4 LT	367
	368	extern int sound_map_buffer (int dev, struct dma_buffparms dmap, buffmem_desc info);
	369	void sound_timer_init (struct sound_lowlev_timer t, char name);
	370	void sound_dma_intr (int dev, struct dma_buffparms *dmap, int chan);
	371
	372	#define AUDIO_DRIVER_VERSION 2
	373	#define MIXER_DRIVER_VERSION 2
	374	int sound_install_audiodrv(int vers, char name, struct audio_driver driver,
	375	int driver_size, int flags, unsigned int format_mask,
	376	void *devc, int dma1, int dma2);
	377	int sound_install_mixer(int vers, char name, struct mixer_operations driver,
	378	int driver_size, void *devc);
	379
	380	void sound_unload_audiodev(int dev);
	381	void sound_unload_mixerdev(int dev);
	382	void sound_unload_mididev(int dev);
	383	void sound_unload_synthdev(int dev);
	384	void sound_unload_timerdev(int dev);
	385	int sound_alloc_mixerdev(void);
	386	int sound_alloc_timerdev(void);
	387	int sound_alloc_synthdev(void);
	388	int sound_alloc_mididev(void);
	389	#endif /* _DEV_TABLE_H_ */
	390