Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef __SOUND_CORE_H |
2 | #define __SOUND_CORE_H | |
3 | ||
4 | /* | |
5 | * Main header file for the ALSA driver | |
6 | * Copyright (c) 1994-2001 by Jaroslav Kysela <perex@suse.cz> | |
7 | * | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | */ | |
24 | ||
25 | #include <linux/sched.h> /* wake_up() */ | |
26 | #include <asm/semaphore.h> /* struct semaphore */ | |
27 | #include <linux/rwsem.h> /* struct rw_semaphore */ | |
28 | #include <linux/workqueue.h> /* struct workqueue_struct */ | |
29 | #include <linux/pm.h> /* pm_message_t */ | |
30 | ||
31 | /* Typedef's */ | |
32 | typedef struct timespec snd_timestamp_t; | |
33 | typedef struct sndrv_interval snd_interval_t; | |
34 | typedef enum sndrv_card_type snd_card_type; | |
35 | typedef struct sndrv_xferi snd_xferi_t; | |
36 | typedef struct sndrv_xfern snd_xfern_t; | |
37 | typedef struct sndrv_xferv snd_xferv_t; | |
38 | ||
39 | /* forward declarations */ | |
40 | #ifdef CONFIG_PCI | |
41 | struct pci_dev; | |
42 | #endif | |
43 | #ifdef CONFIG_SBUS | |
44 | struct sbus_dev; | |
45 | #endif | |
46 | ||
47 | /* device allocation stuff */ | |
48 | ||
49 | #define SNDRV_DEV_TYPE_RANGE_SIZE 0x1000 | |
50 | ||
51 | typedef enum { | |
52 | SNDRV_DEV_TOPLEVEL = (0*SNDRV_DEV_TYPE_RANGE_SIZE), | |
53 | SNDRV_DEV_CONTROL, | |
54 | SNDRV_DEV_LOWLEVEL_PRE, | |
55 | SNDRV_DEV_LOWLEVEL_NORMAL = (1*SNDRV_DEV_TYPE_RANGE_SIZE), | |
56 | SNDRV_DEV_PCM, | |
57 | SNDRV_DEV_RAWMIDI, | |
58 | SNDRV_DEV_TIMER, | |
59 | SNDRV_DEV_SEQUENCER, | |
60 | SNDRV_DEV_HWDEP, | |
61 | SNDRV_DEV_INFO, | |
62 | SNDRV_DEV_BUS, | |
63 | SNDRV_DEV_CODEC, | |
64 | SNDRV_DEV_LOWLEVEL = (2*SNDRV_DEV_TYPE_RANGE_SIZE) | |
65 | } snd_device_type_t; | |
66 | ||
67 | typedef enum { | |
68 | SNDRV_DEV_BUILD, | |
69 | SNDRV_DEV_REGISTERED, | |
70 | SNDRV_DEV_DISCONNECTED | |
71 | } snd_device_state_t; | |
72 | ||
73 | typedef enum { | |
74 | SNDRV_DEV_CMD_PRE = 0, | |
75 | SNDRV_DEV_CMD_NORMAL = 1, | |
76 | SNDRV_DEV_CMD_POST = 2 | |
77 | } snd_device_cmd_t; | |
78 | ||
79 | typedef struct _snd_card snd_card_t; | |
80 | typedef struct _snd_device snd_device_t; | |
81 | ||
82 | typedef int (snd_dev_free_t)(snd_device_t *device); | |
83 | typedef int (snd_dev_register_t)(snd_device_t *device); | |
84 | typedef int (snd_dev_disconnect_t)(snd_device_t *device); | |
85 | typedef int (snd_dev_unregister_t)(snd_device_t *device); | |
86 | ||
87 | typedef struct { | |
88 | snd_dev_free_t *dev_free; | |
89 | snd_dev_register_t *dev_register; | |
90 | snd_dev_disconnect_t *dev_disconnect; | |
91 | snd_dev_unregister_t *dev_unregister; | |
92 | } snd_device_ops_t; | |
93 | ||
94 | struct _snd_device { | |
95 | struct list_head list; /* list of registered devices */ | |
96 | snd_card_t *card; /* card which holds this device */ | |
97 | snd_device_state_t state; /* state of the device */ | |
98 | snd_device_type_t type; /* device type */ | |
99 | void *device_data; /* device structure */ | |
100 | snd_device_ops_t *ops; /* operations */ | |
101 | }; | |
102 | ||
103 | #define snd_device(n) list_entry(n, snd_device_t, list) | |
104 | ||
105 | /* various typedefs */ | |
106 | ||
107 | typedef struct snd_info_entry snd_info_entry_t; | |
108 | typedef struct _snd_pcm snd_pcm_t; | |
109 | typedef struct _snd_pcm_str snd_pcm_str_t; | |
110 | typedef struct _snd_pcm_substream snd_pcm_substream_t; | |
111 | typedef struct _snd_mixer snd_kmixer_t; | |
112 | typedef struct _snd_rawmidi snd_rawmidi_t; | |
113 | typedef struct _snd_ctl_file snd_ctl_file_t; | |
114 | typedef struct _snd_kcontrol snd_kcontrol_t; | |
115 | typedef struct _snd_timer snd_timer_t; | |
116 | typedef struct _snd_timer_instance snd_timer_instance_t; | |
117 | typedef struct _snd_hwdep snd_hwdep_t; | |
118 | #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) | |
119 | typedef struct _snd_oss_mixer snd_mixer_oss_t; | |
120 | #endif | |
121 | ||
122 | /* monitor files for graceful shutdown (hotplug) */ | |
123 | ||
124 | struct snd_monitor_file { | |
125 | struct file *file; | |
126 | struct snd_monitor_file *next; | |
127 | }; | |
128 | ||
d5750f67 | 129 | struct snd_shutdown_f_ops; /* define it later in init.c */ |
1da177e4 LT |
130 | |
131 | /* main structure for soundcard */ | |
132 | ||
133 | struct _snd_card { | |
d5750f67 HK |
134 | int number; /* number of soundcard (index to |
135 | snd_cards) */ | |
1da177e4 LT |
136 | |
137 | char id[16]; /* id string of this card */ | |
138 | char driver[16]; /* driver name */ | |
139 | char shortname[32]; /* short name of this soundcard */ | |
140 | char longname[80]; /* name of this soundcard */ | |
141 | char mixername[80]; /* mixer name */ | |
d5750f67 HK |
142 | char components[80]; /* card components delimited with |
143 | space */ | |
1da177e4 LT |
144 | struct module *module; /* top-level module */ |
145 | ||
146 | void *private_data; /* private data for soundcard */ | |
d5750f67 HK |
147 | void (*private_free) (snd_card_t *card); /* callback for freeing of |
148 | private data */ | |
1da177e4 LT |
149 | struct list_head devices; /* devices */ |
150 | ||
151 | unsigned int last_numid; /* last used numeric ID */ | |
152 | struct rw_semaphore controls_rwsem; /* controls list lock */ | |
153 | rwlock_t ctl_files_rwlock; /* ctl_files list lock */ | |
154 | int controls_count; /* count of all controls */ | |
155 | int user_ctl_count; /* count of all user controls */ | |
156 | struct list_head controls; /* all controls for this card */ | |
157 | struct list_head ctl_files; /* active control files */ | |
158 | ||
159 | snd_info_entry_t *proc_root; /* root for soundcard specific files */ | |
160 | snd_info_entry_t *proc_id; /* the card id */ | |
161 | struct proc_dir_entry *proc_root_link; /* number link to real id */ | |
162 | ||
163 | struct snd_monitor_file *files; /* all files associated to this card */ | |
d5750f67 HK |
164 | struct snd_shutdown_f_ops *s_f_ops; /* file operations in the shutdown |
165 | state */ | |
1da177e4 LT |
166 | spinlock_t files_lock; /* lock the files for this card */ |
167 | int shutdown; /* this card is going down */ | |
168 | wait_queue_head_t shutdown_sleep; | |
169 | struct work_struct free_workq; /* for free in workqueue */ | |
170 | struct device *dev; | |
171 | ||
172 | #ifdef CONFIG_PM | |
173 | int (*pm_suspend)(snd_card_t *card, pm_message_t state); | |
174 | int (*pm_resume)(snd_card_t *card); | |
175 | void *pm_private_data; | |
176 | unsigned int power_state; /* power state */ | |
177 | struct semaphore power_lock; /* power lock */ | |
178 | wait_queue_head_t power_sleep; | |
179 | #ifdef CONFIG_SND_GENERIC_PM | |
180 | struct snd_generic_device *pm_dev; /* for ISA */ | |
181 | #endif | |
182 | #endif | |
183 | ||
184 | #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) | |
185 | snd_mixer_oss_t *mixer_oss; | |
186 | int mixer_oss_change_count; | |
187 | #endif | |
188 | }; | |
189 | ||
190 | #ifdef CONFIG_PM | |
191 | static inline void snd_power_lock(snd_card_t *card) | |
192 | { | |
193 | down(&card->power_lock); | |
194 | } | |
195 | ||
196 | static inline void snd_power_unlock(snd_card_t *card) | |
197 | { | |
198 | up(&card->power_lock); | |
199 | } | |
200 | ||
1da177e4 LT |
201 | static inline unsigned int snd_power_get_state(snd_card_t *card) |
202 | { | |
203 | return card->power_state; | |
204 | } | |
205 | ||
206 | static inline void snd_power_change_state(snd_card_t *card, unsigned int state) | |
207 | { | |
208 | card->power_state = state; | |
209 | wake_up(&card->power_sleep); | |
210 | } | |
d5750f67 HK |
211 | |
212 | /* init.c */ | |
213 | int snd_power_wait(snd_card_t *card, unsigned int power_state, struct file *file); | |
214 | ||
1da177e4 LT |
215 | int snd_card_set_pm_callback(snd_card_t *card, |
216 | int (*suspend)(snd_card_t *, pm_message_t), | |
217 | int (*resume)(snd_card_t *), | |
218 | void *private_data); | |
219 | int snd_card_set_generic_pm_callback(snd_card_t *card, | |
220 | int (*suspend)(snd_card_t *, pm_message_t), | |
221 | int (*resume)(snd_card_t *), | |
222 | void *private_data); | |
223 | #define snd_card_set_isa_pm_callback(card,suspend,resume,data) \ | |
224 | snd_card_set_generic_pm_callback(card, suspend, resume, data) | |
225 | struct pci_dev; | |
226 | int snd_card_pci_suspend(struct pci_dev *dev, pm_message_t state); | |
227 | int snd_card_pci_resume(struct pci_dev *dev); | |
228 | #define SND_PCI_PM_CALLBACKS \ | |
229 | .suspend = snd_card_pci_suspend, .resume = snd_card_pci_resume | |
230 | ||
231 | #else /* ! CONFIG_PM */ | |
232 | ||
233 | #define snd_power_lock(card) do { (void)(card); } while (0) | |
234 | #define snd_power_unlock(card) do { (void)(card); } while (0) | |
235 | static inline int snd_power_wait(snd_card_t *card, unsigned int state, struct file *file) { return 0; } | |
236 | #define snd_power_get_state(card) SNDRV_CTL_POWER_D0 | |
237 | #define snd_power_change_state(card, state) do { (void)(card); } while (0) | |
238 | #define snd_card_set_pm_callback(card,suspend,resume,data) | |
239 | #define snd_card_set_generic_pm_callback(card,suspend,resume,data) | |
240 | #define snd_card_set_isa_pm_callback(card,suspend,resume,data) | |
241 | #define SND_PCI_PM_CALLBACKS | |
242 | ||
243 | #endif /* CONFIG_PM */ | |
244 | ||
1da177e4 LT |
245 | struct _snd_minor { |
246 | struct list_head list; /* list of all minors per card */ | |
247 | int number; /* minor number */ | |
248 | int device; /* device number */ | |
249 | const char *comment; /* for /proc/asound/devices */ | |
250 | struct file_operations *f_ops; /* file operations */ | |
d5750f67 HK |
251 | char name[0]; /* device name (keep at the end of |
252 | structure) */ | |
1da177e4 LT |
253 | }; |
254 | ||
255 | typedef struct _snd_minor snd_minor_t; | |
256 | ||
257 | /* sound.c */ | |
258 | ||
259 | extern int snd_ecards_limit; | |
260 | ||
261 | void snd_request_card(int card); | |
262 | ||
263 | int snd_register_device(int type, snd_card_t *card, int dev, snd_minor_t *reg, const char *name); | |
264 | int snd_unregister_device(int type, snd_card_t *card, int dev); | |
265 | ||
266 | #ifdef CONFIG_SND_OSSEMUL | |
267 | int snd_register_oss_device(int type, snd_card_t *card, int dev, snd_minor_t *reg, const char *name); | |
268 | int snd_unregister_oss_device(int type, snd_card_t *card, int dev); | |
269 | #endif | |
270 | ||
271 | int snd_minor_info_init(void); | |
272 | int snd_minor_info_done(void); | |
273 | ||
274 | /* sound_oss.c */ | |
275 | ||
276 | #ifdef CONFIG_SND_OSSEMUL | |
277 | int snd_minor_info_oss_init(void); | |
278 | int snd_minor_info_oss_done(void); | |
279 | int snd_oss_init_module(void); | |
280 | #else | |
281 | #define snd_minor_info_oss_init() /*NOP*/ | |
282 | #define snd_minor_info_oss_done() /*NOP*/ | |
283 | #define snd_oss_init_module() 0 | |
284 | #endif | |
285 | ||
286 | /* memory.c */ | |
287 | ||
288 | #ifdef CONFIG_SND_DEBUG_MEMORY | |
289 | void snd_memory_init(void); | |
290 | void snd_memory_done(void); | |
291 | int snd_memory_info_init(void); | |
292 | int snd_memory_info_done(void); | |
5a0f217d VF |
293 | void *snd_hidden_kmalloc(size_t size, unsigned int __nocast flags); |
294 | void *snd_hidden_kcalloc(size_t n, size_t size, unsigned int __nocast flags); | |
1da177e4 LT |
295 | void snd_hidden_kfree(const void *obj); |
296 | void *snd_hidden_vmalloc(unsigned long size); | |
297 | void snd_hidden_vfree(void *obj); | |
5a0f217d | 298 | char *snd_hidden_kstrdup(const char *s, unsigned int __nocast flags); |
1da177e4 LT |
299 | #define kmalloc(size, flags) snd_hidden_kmalloc(size, flags) |
300 | #define kcalloc(n, size, flags) snd_hidden_kcalloc(n, size, flags) | |
301 | #define kfree(obj) snd_hidden_kfree(obj) | |
302 | #define vmalloc(size) snd_hidden_vmalloc(size) | |
303 | #define vfree(obj) snd_hidden_vfree(obj) | |
304 | #define kmalloc_nocheck(size, flags) snd_wrapper_kmalloc(size, flags) | |
305 | #define vmalloc_nocheck(size) snd_wrapper_vmalloc(size) | |
306 | #define kfree_nocheck(obj) snd_wrapper_kfree(obj) | |
307 | #define vfree_nocheck(obj) snd_wrapper_vfree(obj) | |
543537bd | 308 | #define kstrdup(s, flags) snd_hidden_kstrdup(s, flags) |
1da177e4 LT |
309 | #else |
310 | #define snd_memory_init() /*NOP*/ | |
311 | #define snd_memory_done() /*NOP*/ | |
312 | #define snd_memory_info_init() /*NOP*/ | |
313 | #define snd_memory_info_done() /*NOP*/ | |
314 | #define kmalloc_nocheck(size, flags) kmalloc(size, flags) | |
315 | #define vmalloc_nocheck(size) vmalloc(size) | |
316 | #define kfree_nocheck(obj) kfree(obj) | |
317 | #define vfree_nocheck(obj) vfree(obj) | |
318 | #endif | |
1da177e4 LT |
319 | int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count); |
320 | int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count); | |
321 | ||
322 | /* init.c */ | |
323 | ||
324 | extern unsigned int snd_cards_lock; | |
325 | extern snd_card_t *snd_cards[SNDRV_CARDS]; | |
326 | extern rwlock_t snd_card_rwlock; | |
327 | #if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE) | |
328 | #define SND_MIXER_OSS_NOTIFY_REGISTER 0 | |
329 | #define SND_MIXER_OSS_NOTIFY_DISCONNECT 1 | |
330 | #define SND_MIXER_OSS_NOTIFY_FREE 2 | |
331 | extern int (*snd_mixer_oss_notify_callback)(snd_card_t *card, int cmd); | |
332 | #endif | |
333 | ||
334 | snd_card_t *snd_card_new(int idx, const char *id, | |
335 | struct module *module, int extra_size); | |
336 | int snd_card_disconnect(snd_card_t *card); | |
337 | int snd_card_free(snd_card_t *card); | |
338 | int snd_card_free_in_thread(snd_card_t *card); | |
339 | int snd_card_register(snd_card_t *card); | |
340 | int snd_card_info_init(void); | |
341 | int snd_card_info_done(void); | |
342 | int snd_component_add(snd_card_t *card, const char *component); | |
343 | int snd_card_file_add(snd_card_t *card, struct file *file); | |
344 | int snd_card_file_remove(snd_card_t *card, struct file *file); | |
345 | ||
346 | #ifndef snd_card_set_dev | |
347 | #define snd_card_set_dev(card,devptr) ((card)->dev = (devptr)) | |
348 | #endif | |
349 | ||
350 | /* device.c */ | |
351 | ||
352 | int snd_device_new(snd_card_t *card, snd_device_type_t type, | |
353 | void *device_data, snd_device_ops_t *ops); | |
354 | int snd_device_register(snd_card_t *card, void *device_data); | |
355 | int snd_device_register_all(snd_card_t *card); | |
356 | int snd_device_disconnect(snd_card_t *card, void *device_data); | |
357 | int snd_device_disconnect_all(snd_card_t *card); | |
358 | int snd_device_free(snd_card_t *card, void *device_data); | |
359 | int snd_device_free_all(snd_card_t *card, snd_device_cmd_t cmd); | |
360 | ||
361 | /* isadma.c */ | |
362 | ||
363 | #define DMA_MODE_NO_ENABLE 0x0100 | |
364 | ||
365 | void snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode); | |
366 | void snd_dma_disable(unsigned long dma); | |
367 | unsigned int snd_dma_pointer(unsigned long dma, unsigned int size); | |
368 | ||
369 | /* misc.c */ | |
370 | ||
371 | int snd_task_name(struct task_struct *task, char *name, size_t size); | |
372 | #ifdef CONFIG_SND_VERBOSE_PRINTK | |
373 | void snd_verbose_printk(const char *file, int line, const char *format, ...) | |
374 | __attribute__ ((format (printf, 3, 4))); | |
375 | #endif | |
376 | #if defined(CONFIG_SND_DEBUG) && defined(CONFIG_SND_VERBOSE_PRINTK) | |
377 | void snd_verbose_printd(const char *file, int line, const char *format, ...) | |
378 | __attribute__ ((format (printf, 3, 4))); | |
379 | #endif | |
380 | ||
381 | /* --- */ | |
382 | ||
383 | #ifdef CONFIG_SND_VERBOSE_PRINTK | |
384 | /** | |
385 | * snd_printk - printk wrapper | |
386 | * @fmt: format string | |
387 | * | |
388 | * Works like print() but prints the file and the line of the caller | |
389 | * when configured with CONFIG_SND_VERBOSE_PRINTK. | |
390 | */ | |
391 | #define snd_printk(fmt, args...) \ | |
392 | snd_verbose_printk(__FILE__, __LINE__, fmt ,##args) | |
393 | #else | |
394 | #define snd_printk(fmt, args...) \ | |
395 | printk(fmt ,##args) | |
396 | #endif | |
397 | ||
398 | #ifdef CONFIG_SND_DEBUG | |
399 | ||
400 | #define __ASTRING__(x) #x | |
401 | ||
402 | #ifdef CONFIG_SND_VERBOSE_PRINTK | |
403 | /** | |
404 | * snd_printd - debug printk | |
405 | * @format: format string | |
406 | * | |
407 | * Compiled only when Works like snd_printk() for debugging purpose. | |
408 | * Ignored when CONFIG_SND_DEBUG is not set. | |
409 | */ | |
410 | #define snd_printd(fmt, args...) \ | |
411 | snd_verbose_printd(__FILE__, __LINE__, fmt ,##args) | |
412 | #else | |
413 | #define snd_printd(fmt, args...) \ | |
414 | printk(fmt ,##args) | |
415 | #endif | |
416 | /** | |
d5750f67 | 417 | * snd_assert - run-time assertion macro |
1da177e4 LT |
418 | * @expr: expression |
419 | * @args...: the action | |
420 | * | |
421 | * This macro checks the expression in run-time and invokes the commands | |
422 | * given in the rest arguments if the assertion is failed. | |
423 | * When CONFIG_SND_DEBUG is not set, the expression is executed but | |
424 | * not checked. | |
425 | */ | |
426 | #define snd_assert(expr, args...) do {\ | |
427 | if (unlikely(!(expr))) { \ | |
428 | snd_printk(KERN_ERR "BUG? (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\ | |
429 | args;\ | |
430 | }\ | |
431 | } while (0) | |
432 | /** | |
d5750f67 | 433 | * snd_runtime_check - run-time assertion macro |
1da177e4 LT |
434 | * @expr: expression |
435 | * @args...: the action | |
436 | * | |
437 | * This macro checks the expression in run-time and invokes the commands | |
438 | * given in the rest arguments if the assertion is failed. | |
439 | * Unlike snd_assert(), the action commands are executed even if | |
440 | * CONFIG_SND_DEBUG is not set but without any error messages. | |
441 | */ | |
442 | #define snd_runtime_check(expr, args...) do {\ | |
443 | if (unlikely(!(expr))) { \ | |
444 | snd_printk(KERN_ERR "ERROR (%s) (called from %p)\n", __ASTRING__(expr), __builtin_return_address(0));\ | |
445 | args;\ | |
446 | }\ | |
447 | } while (0) | |
448 | ||
449 | #else /* !CONFIG_SND_DEBUG */ | |
450 | ||
451 | #define snd_printd(fmt, args...) /* nothing */ | |
452 | #define snd_assert(expr, args...) (void)(expr) | |
453 | #define snd_runtime_check(expr, args...) do { if (!(expr)) { args; } } while (0) | |
454 | ||
455 | #endif /* CONFIG_SND_DEBUG */ | |
456 | ||
457 | #ifdef CONFIG_SND_DEBUG_DETECT | |
458 | /** | |
459 | * snd_printdd - debug printk | |
460 | * @format: format string | |
461 | * | |
462 | * Compiled only when Works like snd_printk() for debugging purpose. | |
463 | * Ignored when CONFIG_SND_DEBUG_DETECT is not set. | |
464 | */ | |
465 | #define snd_printdd(format, args...) snd_printk(format, ##args) | |
466 | #else | |
467 | #define snd_printdd(format, args...) /* nothing */ | |
468 | #endif | |
469 | ||
470 | #define snd_BUG() snd_assert(0, ) | |
471 | ||
472 | ||
473 | static inline void snd_timestamp_now(struct timespec *tstamp, int timespec) | |
474 | { | |
475 | struct timeval val; | |
476 | /* FIXME: use a linear time source */ | |
477 | do_gettimeofday(&val); | |
478 | tstamp->tv_sec = val.tv_sec; | |
479 | tstamp->tv_nsec = val.tv_usec; | |
480 | if (timespec) | |
481 | tstamp->tv_nsec *= 1000L; | |
482 | } | |
483 | ||
484 | static inline void snd_timestamp_zero(struct timespec *tstamp) | |
485 | { | |
486 | tstamp->tv_sec = 0; | |
487 | tstamp->tv_nsec = 0; | |
488 | } | |
489 | ||
490 | static inline int snd_timestamp_null(struct timespec *tstamp) | |
491 | { | |
492 | return tstamp->tv_sec == 0 && tstamp->tv_nsec == 0; | |
493 | } | |
494 | ||
495 | #define SNDRV_OSS_VERSION ((3<<16)|(8<<8)|(1<<4)|(0)) /* 3.8.1a */ | |
496 | ||
497 | /* for easier backward-porting */ | |
498 | #if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE) | |
499 | #ifndef gameport_set_dev_parent | |
500 | #define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev)) | |
501 | #define gameport_set_port_data(gp,r) ((gp)->port_data = (r)) | |
502 | #define gameport_get_port_data(gp) (gp)->port_data | |
503 | #endif | |
504 | #endif | |
505 | ||
506 | #endif /* __SOUND_CORE_H */ |