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Linux/sound/oss/dev_table.h

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  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 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 
355 extern struct sound_timer_operations default_sound_timer;
356 
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;
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 
391 

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