1#ifndef __SOUND_CORE_H
2#define __SOUND_CORE_H
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25#include <linux/module.h>
26#include <linux/sched.h>
27#include <linux/mutex.h>
28#include <linux/rwsem.h>
29#include <linux/pm.h>
30#include <linux/device.h>
31#include <linux/stringify.h>
32
33
34#ifdef CONFIG_SND_DYNAMIC_MINORS
35#define SNDRV_CARDS 32
36#else
37#define SNDRV_CARDS 8
38#endif
39
40#define CONFIG_SND_MAJOR 116
41
42
43#ifdef CONFIG_PCI
44struct pci_dev;
45#endif
46
47
48
49#define SNDRV_DEV_TYPE_RANGE_SIZE 0x1000
50
51typedef int __bitwise snd_device_type_t;
52#define SNDRV_DEV_TOPLEVEL ((__force snd_device_type_t) 0)
53#define SNDRV_DEV_CONTROL ((__force snd_device_type_t) 1)
54#define SNDRV_DEV_LOWLEVEL_PRE ((__force snd_device_type_t) 2)
55#define SNDRV_DEV_LOWLEVEL_NORMAL ((__force snd_device_type_t) 0x1000)
56#define SNDRV_DEV_PCM ((__force snd_device_type_t) 0x1001)
57#define SNDRV_DEV_RAWMIDI ((__force snd_device_type_t) 0x1002)
58#define SNDRV_DEV_TIMER ((__force snd_device_type_t) 0x1003)
59#define SNDRV_DEV_SEQUENCER ((__force snd_device_type_t) 0x1004)
60#define SNDRV_DEV_HWDEP ((__force snd_device_type_t) 0x1005)
61#define SNDRV_DEV_INFO ((__force snd_device_type_t) 0x1006)
62#define SNDRV_DEV_BUS ((__force snd_device_type_t) 0x1007)
63#define SNDRV_DEV_CODEC ((__force snd_device_type_t) 0x1008)
64#define SNDRV_DEV_JACK ((__force snd_device_type_t) 0x1009)
65#define SNDRV_DEV_LOWLEVEL ((__force snd_device_type_t) 0x2000)
66
67typedef int __bitwise snd_device_state_t;
68#define SNDRV_DEV_BUILD ((__force snd_device_state_t) 0)
69#define SNDRV_DEV_REGISTERED ((__force snd_device_state_t) 1)
70#define SNDRV_DEV_DISCONNECTED ((__force snd_device_state_t) 2)
71
72typedef int __bitwise snd_device_cmd_t;
73#define SNDRV_DEV_CMD_PRE ((__force snd_device_cmd_t) 0)
74#define SNDRV_DEV_CMD_NORMAL ((__force snd_device_cmd_t) 1)
75#define SNDRV_DEV_CMD_POST ((__force snd_device_cmd_t) 2)
76
77struct snd_device;
78
79struct snd_device_ops {
80 int (*dev_free)(struct snd_device *dev);
81 int (*dev_register)(struct snd_device *dev);
82 int (*dev_disconnect)(struct snd_device *dev);
83};
84
85struct snd_device {
86 struct list_head list;
87 struct snd_card *card;
88 snd_device_state_t state;
89 snd_device_type_t type;
90 void *device_data;
91 struct snd_device_ops *ops;
92};
93
94#define snd_device(n) list_entry(n, struct snd_device, list)
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97
98struct snd_card {
99 int number;
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101
102 char id[16];
103 char driver[16];
104 char shortname[32];
105 char longname[80];
106 char mixername[80];
107 char components[128];
108
109 struct module *module;
110
111 void *private_data;
112 void (*private_free) (struct snd_card *card);
113
114 struct list_head devices;
115
116 unsigned int last_numid;
117 struct rw_semaphore controls_rwsem;
118 rwlock_t ctl_files_rwlock;
119 int controls_count;
120 int user_ctl_count;
121 struct list_head controls;
122 struct list_head ctl_files;
123
124 struct snd_info_entry *proc_root;
125 struct snd_info_entry *proc_id;
126 struct proc_dir_entry *proc_root_link;
127
128 struct list_head files_list;
129 struct snd_shutdown_f_ops *s_f_ops;
130
131 spinlock_t files_lock;
132 int shutdown;
133 int free_on_last_close;
134 wait_queue_head_t shutdown_sleep;
135 struct device *dev;
136 struct device *card_dev;
137
138#ifdef CONFIG_PM
139 unsigned int power_state;
140 struct mutex power_lock;
141 wait_queue_head_t power_sleep;
142#endif
143
144#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
145 struct snd_mixer_oss *mixer_oss;
146 int mixer_oss_change_count;
147#endif
148};
149
150#ifdef CONFIG_PM
151static inline void snd_power_lock(struct snd_card *card)
152{
153 mutex_lock(&card->power_lock);
154}
155
156static inline void snd_power_unlock(struct snd_card *card)
157{
158 mutex_unlock(&card->power_lock);
159}
160
161static inline unsigned int snd_power_get_state(struct snd_card *card)
162{
163 return card->power_state;
164}
165
166static inline void snd_power_change_state(struct snd_card *card, unsigned int state)
167{
168 card->power_state = state;
169 wake_up(&card->power_sleep);
170}
171
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173int snd_power_wait(struct snd_card *card, unsigned int power_state);
174
175#else
176
177#define snd_power_lock(card) do { (void)(card); } while (0)
178#define snd_power_unlock(card) do { (void)(card); } while (0)
179static inline int snd_power_wait(struct snd_card *card, unsigned int state) { return 0; }
180#define snd_power_get_state(card) ({ (void)(card); SNDRV_CTL_POWER_D0; })
181#define snd_power_change_state(card, state) do { (void)(card); } while (0)
182
183#endif
184
185struct snd_minor {
186 int type;
187 int card;
188 int device;
189 const struct file_operations *f_ops;
190 void *private_data;
191 struct device *dev;
192};
193
194
195static inline struct device *snd_card_get_device_link(struct snd_card *card)
196{
197 return card ? card->card_dev : NULL;
198}
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202extern int snd_major;
203extern int snd_ecards_limit;
204extern struct class *sound_class;
205
206void snd_request_card(int card);
207
208int snd_register_device_for_dev(int type, struct snd_card *card,
209 int dev,
210 const struct file_operations *f_ops,
211 void *private_data,
212 const char *name,
213 struct device *device);
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232static inline int snd_register_device(int type, struct snd_card *card, int dev,
233 const struct file_operations *f_ops,
234 void *private_data,
235 const char *name)
236{
237 return snd_register_device_for_dev(type, card, dev, f_ops,
238 private_data, name,
239 snd_card_get_device_link(card));
240}
241
242int snd_unregister_device(int type, struct snd_card *card, int dev);
243void *snd_lookup_minor_data(unsigned int minor, int type);
244int snd_add_device_sysfs_file(int type, struct snd_card *card, int dev,
245 struct device_attribute *attr);
246
247#ifdef CONFIG_SND_OSSEMUL
248int snd_register_oss_device(int type, struct snd_card *card, int dev,
249 const struct file_operations *f_ops, void *private_data,
250 const char *name);
251int snd_unregister_oss_device(int type, struct snd_card *card, int dev);
252void *snd_lookup_oss_minor_data(unsigned int minor, int type);
253#endif
254
255int snd_minor_info_init(void);
256int snd_minor_info_done(void);
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260#ifdef CONFIG_SND_OSSEMUL
261int snd_minor_info_oss_init(void);
262int snd_minor_info_oss_done(void);
263#else
264static inline int snd_minor_info_oss_init(void) { return 0; }
265static inline int snd_minor_info_oss_done(void) { return 0; }
266#endif
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270int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count);
271int copy_from_user_toio(volatile void __iomem *dst, const void __user *src, size_t count);
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275extern struct snd_card *snd_cards[SNDRV_CARDS];
276int snd_card_locked(int card);
277#if defined(CONFIG_SND_MIXER_OSS) || defined(CONFIG_SND_MIXER_OSS_MODULE)
278#define SND_MIXER_OSS_NOTIFY_REGISTER 0
279#define SND_MIXER_OSS_NOTIFY_DISCONNECT 1
280#define SND_MIXER_OSS_NOTIFY_FREE 2
281extern int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int cmd);
282#endif
283
284int snd_card_create(int idx, const char *id,
285 struct module *module, int extra_size,
286 struct snd_card **card_ret);
287
288int snd_card_disconnect(struct snd_card *card);
289int snd_card_free(struct snd_card *card);
290int snd_card_free_when_closed(struct snd_card *card);
291void snd_card_set_id(struct snd_card *card, const char *id);
292int snd_card_register(struct snd_card *card);
293int snd_card_info_init(void);
294int snd_card_info_done(void);
295int snd_component_add(struct snd_card *card, const char *component);
296int snd_card_file_add(struct snd_card *card, struct file *file);
297int snd_card_file_remove(struct snd_card *card, struct file *file);
298
299#define snd_card_set_dev(card, devptr) ((card)->dev = (devptr))
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303int snd_device_new(struct snd_card *card, snd_device_type_t type,
304 void *device_data, struct snd_device_ops *ops);
305int snd_device_register(struct snd_card *card, void *device_data);
306int snd_device_register_all(struct snd_card *card);
307int snd_device_disconnect(struct snd_card *card, void *device_data);
308int snd_device_disconnect_all(struct snd_card *card);
309int snd_device_free(struct snd_card *card, void *device_data);
310int snd_device_free_all(struct snd_card *card, snd_device_cmd_t cmd);
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314#ifdef CONFIG_ISA_DMA_API
315#define DMA_MODE_NO_ENABLE 0x0100
316
317void snd_dma_program(unsigned long dma, unsigned long addr, unsigned int size, unsigned short mode);
318void snd_dma_disable(unsigned long dma);
319unsigned int snd_dma_pointer(unsigned long dma, unsigned int size);
320#endif
321
322
323struct resource;
324void release_and_free_resource(struct resource *res);
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328#if defined(CONFIG_SND_DEBUG) || defined(CONFIG_SND_VERBOSE_PRINTK)
329void __snd_printk(unsigned int level, const char *file, int line,
330 const char *format, ...)
331 __attribute__ ((format (printf, 4, 5)));
332#else
333#define __snd_printk(level, file, line, format, args...) \
334 printk(format, ##args)
335#endif
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344#define snd_printk(fmt, args...) \
345 __snd_printk(0, __FILE__, __LINE__, fmt, ##args)
346
347#ifdef CONFIG_SND_DEBUG
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355#define snd_printd(fmt, args...) \
356 __snd_printk(1, __FILE__, __LINE__, fmt, ##args)
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364#define snd_BUG() WARN(1, "BUG?\n")
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381#define snd_BUG_ON(cond) WARN((cond), "BUG? (%s)\n", __stringify(cond))
382
383#else
384
385#define snd_printd(fmt, args...) do { } while (0)
386#define snd_BUG() do { } while (0)
387static inline int __snd_bug_on(int cond)
388{
389 return 0;
390}
391#define snd_BUG_ON(cond) __snd_bug_on(0 && (cond))
392
393#endif
394
395#ifdef CONFIG_SND_DEBUG_VERBOSE
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403#define snd_printdd(format, args...) \
404 __snd_printk(2, __FILE__, __LINE__, format, ##args)
405#else
406#define snd_printdd(format, args...) do { } while (0)
407#endif
408
409
410#define SNDRV_OSS_VERSION ((3<<16)|(8<<8)|(1<<4)|(0))
411
412
413#if defined(CONFIG_GAMEPORT) || defined(CONFIG_GAMEPORT_MODULE)
414#define gameport_set_dev_parent(gp,xdev) ((gp)->dev.parent = (xdev))
415#define gameport_set_port_data(gp,r) ((gp)->port_data = (r))
416#define gameport_get_port_data(gp) (gp)->port_data
417#endif
418
419
420struct snd_pci_quirk {
421 unsigned short subvendor;
422 unsigned short subdevice;
423 unsigned short subdevice_mask;
424 int value;
425#ifdef CONFIG_SND_DEBUG_VERBOSE
426 const char *name;
427#endif
428};
429
430#define _SND_PCI_QUIRK_ID_MASK(vend, mask, dev) \
431 .subvendor = (vend), .subdevice = (dev), .subdevice_mask = (mask)
432#define _SND_PCI_QUIRK_ID(vend, dev) \
433 _SND_PCI_QUIRK_ID_MASK(vend, 0xffff, dev)
434#define SND_PCI_QUIRK_ID(vend,dev) {_SND_PCI_QUIRK_ID(vend, dev)}
435#ifdef CONFIG_SND_DEBUG_VERBOSE
436#define SND_PCI_QUIRK(vend,dev,xname,val) \
437 {_SND_PCI_QUIRK_ID(vend, dev), .value = (val), .name = (xname)}
438#define SND_PCI_QUIRK_VENDOR(vend, xname, val) \
439 {_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val), .name = (xname)}
440#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val) \
441 {_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), \
442 .value = (val), .name = (xname)}
443#else
444#define SND_PCI_QUIRK(vend,dev,xname,val) \
445 {_SND_PCI_QUIRK_ID(vend, dev), .value = (val)}
446#define SND_PCI_QUIRK_MASK(vend, mask, dev, xname, val) \
447 {_SND_PCI_QUIRK_ID_MASK(vend, mask, dev), .value = (val)}
448#define SND_PCI_QUIRK_VENDOR(vend, xname, val) \
449 {_SND_PCI_QUIRK_ID_MASK(vend, 0, 0), .value = (val)}
450#endif
451
452const struct snd_pci_quirk *
453snd_pci_quirk_lookup(struct pci_dev *pci, const struct snd_pci_quirk *list);
454
455const struct snd_pci_quirk *
456snd_pci_quirk_lookup_id(u16 vendor, u16 device,
457 const struct snd_pci_quirk *list);
458
459#endif
460