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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-11-25 17:23:57 -0500
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2012-11-25 17:23:57 -0500
commit2a859ab07b6ab66f4134c4fffc341398bd3d328c (patch)
treec5e7eaf3bffbc18feb326940e39794328d98dc07 /include/linux/usb/audio.h
parentcedddd812a79a4fda3885a15711aee3de78c4a24 (diff)
parente716e014384688d1a50d1aa5213ee74748c6d4e0 (diff)
Merge branch 'merge' into next
Merge my own merge branch to get various fixes from there and upstream, especially the hvc console tty refcouting fixes which which testing is quite a bit harder...
Diffstat (limited to 'include/linux/usb/audio.h')
-rw-r--r--include/linux/usb/audio.h524
1 files changed, 1 insertions, 523 deletions
diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
index a54b8255d75f..3d84619110a4 100644
--- a/include/linux/usb/audio.h
+++ b/include/linux/usb/audio.h
@@ -17,531 +17,11 @@
17 * Types and defines in this file are either specific to version 1.0 of 17 * Types and defines in this file are either specific to version 1.0 of
18 * this standard or common for newer versions. 18 * this standard or common for newer versions.
19 */ 19 */
20
21#ifndef __LINUX_USB_AUDIO_H 20#ifndef __LINUX_USB_AUDIO_H
22#define __LINUX_USB_AUDIO_H 21#define __LINUX_USB_AUDIO_H
23 22
24#include <linux/types.h> 23#include <uapi/linux/usb/audio.h>
25
26/* bInterfaceProtocol values to denote the version of the standard used */
27#define UAC_VERSION_1 0x00
28#define UAC_VERSION_2 0x20
29
30/* A.2 Audio Interface Subclass Codes */
31#define USB_SUBCLASS_AUDIOCONTROL 0x01
32#define USB_SUBCLASS_AUDIOSTREAMING 0x02
33#define USB_SUBCLASS_MIDISTREAMING 0x03
34
35/* A.5 Audio Class-Specific AC Interface Descriptor Subtypes */
36#define UAC_HEADER 0x01
37#define UAC_INPUT_TERMINAL 0x02
38#define UAC_OUTPUT_TERMINAL 0x03
39#define UAC_MIXER_UNIT 0x04
40#define UAC_SELECTOR_UNIT 0x05
41#define UAC_FEATURE_UNIT 0x06
42#define UAC1_PROCESSING_UNIT 0x07
43#define UAC1_EXTENSION_UNIT 0x08
44
45/* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */
46#define UAC_AS_GENERAL 0x01
47#define UAC_FORMAT_TYPE 0x02
48#define UAC_FORMAT_SPECIFIC 0x03
49
50/* A.7 Processing Unit Process Types */
51#define UAC_PROCESS_UNDEFINED 0x00
52#define UAC_PROCESS_UP_DOWNMIX 0x01
53#define UAC_PROCESS_DOLBY_PROLOGIC 0x02
54#define UAC_PROCESS_STEREO_EXTENDER 0x03
55#define UAC_PROCESS_REVERB 0x04
56#define UAC_PROCESS_CHORUS 0x05
57#define UAC_PROCESS_DYN_RANGE_COMP 0x06
58
59/* A.8 Audio Class-Specific Endpoint Descriptor Subtypes */
60#define UAC_EP_GENERAL 0x01
61
62/* A.9 Audio Class-Specific Request Codes */
63#define UAC_SET_ 0x00
64#define UAC_GET_ 0x80
65
66#define UAC__CUR 0x1
67#define UAC__MIN 0x2
68#define UAC__MAX 0x3
69#define UAC__RES 0x4
70#define UAC__MEM 0x5
71
72#define UAC_SET_CUR (UAC_SET_ | UAC__CUR)
73#define UAC_GET_CUR (UAC_GET_ | UAC__CUR)
74#define UAC_SET_MIN (UAC_SET_ | UAC__MIN)
75#define UAC_GET_MIN (UAC_GET_ | UAC__MIN)
76#define UAC_SET_MAX (UAC_SET_ | UAC__MAX)
77#define UAC_GET_MAX (UAC_GET_ | UAC__MAX)
78#define UAC_SET_RES (UAC_SET_ | UAC__RES)
79#define UAC_GET_RES (UAC_GET_ | UAC__RES)
80#define UAC_SET_MEM (UAC_SET_ | UAC__MEM)
81#define UAC_GET_MEM (UAC_GET_ | UAC__MEM)
82
83#define UAC_GET_STAT 0xff
84
85/* A.10 Control Selector Codes */
86
87/* A.10.1 Terminal Control Selectors */
88#define UAC_TERM_COPY_PROTECT 0x01
89
90/* A.10.2 Feature Unit Control Selectors */
91#define UAC_FU_MUTE 0x01
92#define UAC_FU_VOLUME 0x02
93#define UAC_FU_BASS 0x03
94#define UAC_FU_MID 0x04
95#define UAC_FU_TREBLE 0x05
96#define UAC_FU_GRAPHIC_EQUALIZER 0x06
97#define UAC_FU_AUTOMATIC_GAIN 0x07
98#define UAC_FU_DELAY 0x08
99#define UAC_FU_BASS_BOOST 0x09
100#define UAC_FU_LOUDNESS 0x0a
101
102#define UAC_CONTROL_BIT(CS) (1 << ((CS) - 1))
103
104/* A.10.3.1 Up/Down-mix Processing Unit Controls Selectors */
105#define UAC_UD_ENABLE 0x01
106#define UAC_UD_MODE_SELECT 0x02
107
108/* A.10.3.2 Dolby Prologic (tm) Processing Unit Controls Selectors */
109#define UAC_DP_ENABLE 0x01
110#define UAC_DP_MODE_SELECT 0x02
111
112/* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */
113#define UAC_3D_ENABLE 0x01
114#define UAC_3D_SPACE 0x02
115
116/* A.10.3.4 Reverberation Processing Unit Control Selectors */
117#define UAC_REVERB_ENABLE 0x01
118#define UAC_REVERB_LEVEL 0x02
119#define UAC_REVERB_TIME 0x03
120#define UAC_REVERB_FEEDBACK 0x04
121
122/* A.10.3.5 Chorus Processing Unit Control Selectors */
123#define UAC_CHORUS_ENABLE 0x01
124#define UAC_CHORUS_LEVEL 0x02
125#define UAC_CHORUS_RATE 0x03
126#define UAC_CHORUS_DEPTH 0x04
127
128/* A.10.3.6 Dynamic Range Compressor Unit Control Selectors */
129#define UAC_DCR_ENABLE 0x01
130#define UAC_DCR_RATE 0x02
131#define UAC_DCR_MAXAMPL 0x03
132#define UAC_DCR_THRESHOLD 0x04
133#define UAC_DCR_ATTACK_TIME 0x05
134#define UAC_DCR_RELEASE_TIME 0x06
135
136/* A.10.4 Extension Unit Control Selectors */
137#define UAC_XU_ENABLE 0x01
138
139/* MIDI - A.1 MS Class-Specific Interface Descriptor Subtypes */
140#define UAC_MS_HEADER 0x01
141#define UAC_MIDI_IN_JACK 0x02
142#define UAC_MIDI_OUT_JACK 0x03
143
144/* MIDI - A.1 MS Class-Specific Endpoint Descriptor Subtypes */
145#define UAC_MS_GENERAL 0x01
146
147/* Terminals - 2.1 USB Terminal Types */
148#define UAC_TERMINAL_UNDEFINED 0x100
149#define UAC_TERMINAL_STREAMING 0x101
150#define UAC_TERMINAL_VENDOR_SPEC 0x1FF
151
152/* Terminal Control Selectors */
153/* 4.3.2 Class-Specific AC Interface Descriptor */
154struct uac1_ac_header_descriptor {
155 __u8 bLength; /* 8 + n */
156 __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
157 __u8 bDescriptorSubtype; /* UAC_MS_HEADER */
158 __le16 bcdADC; /* 0x0100 */
159 __le16 wTotalLength; /* includes Unit and Terminal desc. */
160 __u8 bInCollection; /* n */
161 __u8 baInterfaceNr[]; /* [n] */
162} __attribute__ ((packed));
163
164#define UAC_DT_AC_HEADER_SIZE(n) (8 + (n))
165
166/* As above, but more useful for defining your own descriptors: */
167#define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n) \
168struct uac1_ac_header_descriptor_##n { \
169 __u8 bLength; \
170 __u8 bDescriptorType; \
171 __u8 bDescriptorSubtype; \
172 __le16 bcdADC; \
173 __le16 wTotalLength; \
174 __u8 bInCollection; \
175 __u8 baInterfaceNr[n]; \
176} __attribute__ ((packed))
177
178/* 4.3.2.1 Input Terminal Descriptor */
179struct uac_input_terminal_descriptor {
180 __u8 bLength; /* in bytes: 12 */
181 __u8 bDescriptorType; /* CS_INTERFACE descriptor type */
182 __u8 bDescriptorSubtype; /* INPUT_TERMINAL descriptor subtype */
183 __u8 bTerminalID; /* Constant uniquely terminal ID */
184 __le16 wTerminalType; /* USB Audio Terminal Types */
185 __u8 bAssocTerminal; /* ID of the Output Terminal associated */
186 __u8 bNrChannels; /* Number of logical output channels */
187 __le16 wChannelConfig;
188 __u8 iChannelNames;
189 __u8 iTerminal;
190} __attribute__ ((packed));
191
192#define UAC_DT_INPUT_TERMINAL_SIZE 12
193
194/* Terminals - 2.2 Input Terminal Types */
195#define UAC_INPUT_TERMINAL_UNDEFINED 0x200
196#define UAC_INPUT_TERMINAL_MICROPHONE 0x201
197#define UAC_INPUT_TERMINAL_DESKTOP_MICROPHONE 0x202
198#define UAC_INPUT_TERMINAL_PERSONAL_MICROPHONE 0x203
199#define UAC_INPUT_TERMINAL_OMNI_DIR_MICROPHONE 0x204
200#define UAC_INPUT_TERMINAL_MICROPHONE_ARRAY 0x205
201#define UAC_INPUT_TERMINAL_PROC_MICROPHONE_ARRAY 0x206
202
203/* Terminals - control selectors */
204
205#define UAC_TERMINAL_CS_COPY_PROTECT_CONTROL 0x01
206
207/* 4.3.2.2 Output Terminal Descriptor */
208struct uac1_output_terminal_descriptor {
209 __u8 bLength; /* in bytes: 9 */
210 __u8 bDescriptorType; /* CS_INTERFACE descriptor type */
211 __u8 bDescriptorSubtype; /* OUTPUT_TERMINAL descriptor subtype */
212 __u8 bTerminalID; /* Constant uniquely terminal ID */
213 __le16 wTerminalType; /* USB Audio Terminal Types */
214 __u8 bAssocTerminal; /* ID of the Input Terminal associated */
215 __u8 bSourceID; /* ID of the connected Unit or Terminal*/
216 __u8 iTerminal;
217} __attribute__ ((packed));
218
219#define UAC_DT_OUTPUT_TERMINAL_SIZE 9
220
221/* Terminals - 2.3 Output Terminal Types */
222#define UAC_OUTPUT_TERMINAL_UNDEFINED 0x300
223#define UAC_OUTPUT_TERMINAL_SPEAKER 0x301
224#define UAC_OUTPUT_TERMINAL_HEADPHONES 0x302
225#define UAC_OUTPUT_TERMINAL_HEAD_MOUNTED_DISPLAY_AUDIO 0x303
226#define UAC_OUTPUT_TERMINAL_DESKTOP_SPEAKER 0x304
227#define UAC_OUTPUT_TERMINAL_ROOM_SPEAKER 0x305
228#define UAC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER 0x306
229#define UAC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER 0x307
230
231/* Set bControlSize = 2 as default setting */
232#define UAC_DT_FEATURE_UNIT_SIZE(ch) (7 + ((ch) + 1) * 2)
233
234/* As above, but more useful for defining your own descriptors: */
235#define DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(ch) \
236struct uac_feature_unit_descriptor_##ch { \
237 __u8 bLength; \
238 __u8 bDescriptorType; \
239 __u8 bDescriptorSubtype; \
240 __u8 bUnitID; \
241 __u8 bSourceID; \
242 __u8 bControlSize; \
243 __le16 bmaControls[ch + 1]; \
244 __u8 iFeature; \
245} __attribute__ ((packed))
246
247/* 4.3.2.3 Mixer Unit Descriptor */
248struct uac_mixer_unit_descriptor {
249 __u8 bLength;
250 __u8 bDescriptorType;
251 __u8 bDescriptorSubtype;
252 __u8 bUnitID;
253 __u8 bNrInPins;
254 __u8 baSourceID[];
255} __attribute__ ((packed));
256 24
257static inline __u8 uac_mixer_unit_bNrChannels(struct uac_mixer_unit_descriptor *desc)
258{
259 return desc->baSourceID[desc->bNrInPins];
260}
261
262static inline __u32 uac_mixer_unit_wChannelConfig(struct uac_mixer_unit_descriptor *desc,
263 int protocol)
264{
265 if (protocol == UAC_VERSION_1)
266 return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
267 desc->baSourceID[desc->bNrInPins + 1];
268 else
269 return (desc->baSourceID[desc->bNrInPins + 4] << 24) |
270 (desc->baSourceID[desc->bNrInPins + 3] << 16) |
271 (desc->baSourceID[desc->bNrInPins + 2] << 8) |
272 (desc->baSourceID[desc->bNrInPins + 1]);
273}
274
275static inline __u8 uac_mixer_unit_iChannelNames(struct uac_mixer_unit_descriptor *desc,
276 int protocol)
277{
278 return (protocol == UAC_VERSION_1) ?
279 desc->baSourceID[desc->bNrInPins + 3] :
280 desc->baSourceID[desc->bNrInPins + 5];
281}
282
283static inline __u8 *uac_mixer_unit_bmControls(struct uac_mixer_unit_descriptor *desc,
284 int protocol)
285{
286 return (protocol == UAC_VERSION_1) ?
287 &desc->baSourceID[desc->bNrInPins + 4] :
288 &desc->baSourceID[desc->bNrInPins + 6];
289}
290
291static inline __u8 uac_mixer_unit_iMixer(struct uac_mixer_unit_descriptor *desc)
292{
293 __u8 *raw = (__u8 *) desc;
294 return raw[desc->bLength - 1];
295}
296
297/* 4.3.2.4 Selector Unit Descriptor */
298struct uac_selector_unit_descriptor {
299 __u8 bLength;
300 __u8 bDescriptorType;
301 __u8 bDescriptorSubtype;
302 __u8 bUintID;
303 __u8 bNrInPins;
304 __u8 baSourceID[];
305} __attribute__ ((packed));
306
307static inline __u8 uac_selector_unit_iSelector(struct uac_selector_unit_descriptor *desc)
308{
309 __u8 *raw = (__u8 *) desc;
310 return raw[desc->bLength - 1];
311}
312
313/* 4.3.2.5 Feature Unit Descriptor */
314struct uac_feature_unit_descriptor {
315 __u8 bLength;
316 __u8 bDescriptorType;
317 __u8 bDescriptorSubtype;
318 __u8 bUnitID;
319 __u8 bSourceID;
320 __u8 bControlSize;
321 __u8 bmaControls[0]; /* variable length */
322} __attribute__((packed));
323
324static inline __u8 uac_feature_unit_iFeature(struct uac_feature_unit_descriptor *desc)
325{
326 __u8 *raw = (__u8 *) desc;
327 return raw[desc->bLength - 1];
328}
329
330/* 4.3.2.6 Processing Unit Descriptors */
331struct uac_processing_unit_descriptor {
332 __u8 bLength;
333 __u8 bDescriptorType;
334 __u8 bDescriptorSubtype;
335 __u8 bUnitID;
336 __u16 wProcessType;
337 __u8 bNrInPins;
338 __u8 baSourceID[];
339} __attribute__ ((packed));
340
341static inline __u8 uac_processing_unit_bNrChannels(struct uac_processing_unit_descriptor *desc)
342{
343 return desc->baSourceID[desc->bNrInPins];
344}
345
346static inline __u32 uac_processing_unit_wChannelConfig(struct uac_processing_unit_descriptor *desc,
347 int protocol)
348{
349 if (protocol == UAC_VERSION_1)
350 return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
351 desc->baSourceID[desc->bNrInPins + 1];
352 else
353 return (desc->baSourceID[desc->bNrInPins + 4] << 24) |
354 (desc->baSourceID[desc->bNrInPins + 3] << 16) |
355 (desc->baSourceID[desc->bNrInPins + 2] << 8) |
356 (desc->baSourceID[desc->bNrInPins + 1]);
357}
358
359static inline __u8 uac_processing_unit_iChannelNames(struct uac_processing_unit_descriptor *desc,
360 int protocol)
361{
362 return (protocol == UAC_VERSION_1) ?
363 desc->baSourceID[desc->bNrInPins + 3] :
364 desc->baSourceID[desc->bNrInPins + 5];
365}
366
367static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_descriptor *desc,
368 int protocol)
369{
370 return (protocol == UAC_VERSION_1) ?
371 desc->baSourceID[desc->bNrInPins + 4] :
372 desc->baSourceID[desc->bNrInPins + 6];
373}
374
375static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc,
376 int protocol)
377{
378 return (protocol == UAC_VERSION_1) ?
379 &desc->baSourceID[desc->bNrInPins + 5] :
380 &desc->baSourceID[desc->bNrInPins + 7];
381}
382
383static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc,
384 int protocol)
385{
386 __u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
387 return desc->baSourceID[desc->bNrInPins + control_size];
388}
389
390static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc,
391 int protocol)
392{
393 __u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
394 return &desc->baSourceID[desc->bNrInPins + control_size + 1];
395}
396
397/* 4.5.2 Class-Specific AS Interface Descriptor */
398struct uac1_as_header_descriptor {
399 __u8 bLength; /* in bytes: 7 */
400 __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
401 __u8 bDescriptorSubtype; /* AS_GENERAL */
402 __u8 bTerminalLink; /* Terminal ID of connected Terminal */
403 __u8 bDelay; /* Delay introduced by the data path */
404 __le16 wFormatTag; /* The Audio Data Format */
405} __attribute__ ((packed));
406
407#define UAC_DT_AS_HEADER_SIZE 7
408
409/* Formats - A.1.1 Audio Data Format Type I Codes */
410#define UAC_FORMAT_TYPE_I_UNDEFINED 0x0
411#define UAC_FORMAT_TYPE_I_PCM 0x1
412#define UAC_FORMAT_TYPE_I_PCM8 0x2
413#define UAC_FORMAT_TYPE_I_IEEE_FLOAT 0x3
414#define UAC_FORMAT_TYPE_I_ALAW 0x4
415#define UAC_FORMAT_TYPE_I_MULAW 0x5
416
417struct uac_format_type_i_continuous_descriptor {
418 __u8 bLength; /* in bytes: 8 + (ns * 3) */
419 __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
420 __u8 bDescriptorSubtype; /* FORMAT_TYPE */
421 __u8 bFormatType; /* FORMAT_TYPE_1 */
422 __u8 bNrChannels; /* physical channels in the stream */
423 __u8 bSubframeSize; /* */
424 __u8 bBitResolution;
425 __u8 bSamFreqType;
426 __u8 tLowerSamFreq[3];
427 __u8 tUpperSamFreq[3];
428} __attribute__ ((packed));
429
430#define UAC_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE 14
431
432struct uac_format_type_i_discrete_descriptor {
433 __u8 bLength; /* in bytes: 8 + (ns * 3) */
434 __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
435 __u8 bDescriptorSubtype; /* FORMAT_TYPE */
436 __u8 bFormatType; /* FORMAT_TYPE_1 */
437 __u8 bNrChannels; /* physical channels in the stream */
438 __u8 bSubframeSize; /* */
439 __u8 bBitResolution;
440 __u8 bSamFreqType;
441 __u8 tSamFreq[][3];
442} __attribute__ ((packed));
443
444#define DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(n) \
445struct uac_format_type_i_discrete_descriptor_##n { \
446 __u8 bLength; \
447 __u8 bDescriptorType; \
448 __u8 bDescriptorSubtype; \
449 __u8 bFormatType; \
450 __u8 bNrChannels; \
451 __u8 bSubframeSize; \
452 __u8 bBitResolution; \
453 __u8 bSamFreqType; \
454 __u8 tSamFreq[n][3]; \
455} __attribute__ ((packed))
456
457#define UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(n) (8 + (n * 3))
458
459struct uac_format_type_i_ext_descriptor {
460 __u8 bLength;
461 __u8 bDescriptorType;
462 __u8 bDescriptorSubtype;
463 __u8 bFormatType;
464 __u8 bSubslotSize;
465 __u8 bBitResolution;
466 __u8 bHeaderLength;
467 __u8 bControlSize;
468 __u8 bSideBandProtocol;
469} __attribute__((packed));
470
471/* Formats - Audio Data Format Type I Codes */
472
473#define UAC_FORMAT_TYPE_II_MPEG 0x1001
474#define UAC_FORMAT_TYPE_II_AC3 0x1002
475
476struct uac_format_type_ii_discrete_descriptor {
477 __u8 bLength;
478 __u8 bDescriptorType;
479 __u8 bDescriptorSubtype;
480 __u8 bFormatType;
481 __le16 wMaxBitRate;
482 __le16 wSamplesPerFrame;
483 __u8 bSamFreqType;
484 __u8 tSamFreq[][3];
485} __attribute__((packed));
486
487struct uac_format_type_ii_ext_descriptor {
488 __u8 bLength;
489 __u8 bDescriptorType;
490 __u8 bDescriptorSubtype;
491 __u8 bFormatType;
492 __u16 wMaxBitRate;
493 __u16 wSamplesPerFrame;
494 __u8 bHeaderLength;
495 __u8 bSideBandProtocol;
496} __attribute__((packed));
497
498/* type III */
499#define UAC_FORMAT_TYPE_III_IEC1937_AC3 0x2001
500#define UAC_FORMAT_TYPE_III_IEC1937_MPEG1_LAYER1 0x2002
501#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_NOEXT 0x2003
502#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_EXT 0x2004
503#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER1_LS 0x2005
504#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER23_LS 0x2006
505
506/* Formats - A.2 Format Type Codes */
507#define UAC_FORMAT_TYPE_UNDEFINED 0x0
508#define UAC_FORMAT_TYPE_I 0x1
509#define UAC_FORMAT_TYPE_II 0x2
510#define UAC_FORMAT_TYPE_III 0x3
511#define UAC_EXT_FORMAT_TYPE_I 0x81
512#define UAC_EXT_FORMAT_TYPE_II 0x82
513#define UAC_EXT_FORMAT_TYPE_III 0x83
514
515struct uac_iso_endpoint_descriptor {
516 __u8 bLength; /* in bytes: 7 */
517 __u8 bDescriptorType; /* USB_DT_CS_ENDPOINT */
518 __u8 bDescriptorSubtype; /* EP_GENERAL */
519 __u8 bmAttributes;
520 __u8 bLockDelayUnits;
521 __le16 wLockDelay;
522} __attribute__((packed));
523#define UAC_ISO_ENDPOINT_DESC_SIZE 7
524
525#define UAC_EP_CS_ATTR_SAMPLE_RATE 0x01
526#define UAC_EP_CS_ATTR_PITCH_CONTROL 0x02
527#define UAC_EP_CS_ATTR_FILL_MAX 0x80
528
529/* status word format (3.7.1.1) */
530
531#define UAC1_STATUS_TYPE_ORIG_MASK 0x0f
532#define UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF 0x0
533#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_IF 0x1
534#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_EP 0x2
535
536#define UAC1_STATUS_TYPE_IRQ_PENDING (1 << 7)
537#define UAC1_STATUS_TYPE_MEM_CHANGED (1 << 6)
538
539struct uac1_status_word {
540 __u8 bStatusType;
541 __u8 bOriginator;
542} __attribute__((packed));
543
544#ifdef __KERNEL__
545 25
546struct usb_audio_control { 26struct usb_audio_control {
547 struct list_head list; 27 struct list_head list;
@@ -561,6 +41,4 @@ struct usb_audio_control_selector {
561 struct usb_descriptor_header *desc; 41 struct usb_descriptor_header *desc;
562}; 42};
563 43
564#endif /* __KERNEL__ */
565
566#endif /* __LINUX_USB_AUDIO_H */ 44#endif /* __LINUX_USB_AUDIO_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-10 10:49:52 -0500