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USB: Move vendor subclass definition from usb/audio.h to usb/ch9.h
[net-next-2.6.git] / include / linux / usb / audio.h
CommitLineData
f2ebf92c
BW		 1/*
2 * <linux/usb/audio.h> -- USB Audio definitions.
3 *
4 * Copyright (C) 2006 Thumtronics Pty Ltd.
5 * Developed for Thumtronics by Grey Innovation
6 * Ben Williamson <ben.williamson@greyinnovation.com>
7 *
8 * This software is distributed under the terms of the GNU General Public
9 * License ("GPL") version 2, as published by the Free Software Foundation.
10 *
11 * This file holds USB constants and structures defined
12 * by the USB Device Class Definition for Audio Devices.
13 * Comments below reference relevant sections of that document:
14 *
15 * http://www.usb.org/developers/devclass_docs/audio10.pdf
16 */
17
18#ifndef __LINUX_USB_AUDIO_H
19#define __LINUX_USB_AUDIO_H
20
21#include <linux/types.h>
22
23/* A.2 Audio Interface Subclass Codes */
24#define USB_SUBCLASS_AUDIOCONTROL 0x01
25#define USB_SUBCLASS_AUDIOSTREAMING 0x02
26#define USB_SUBCLASS_MIDISTREAMING 0x03
27
c47d7b09
BW		 28/* A.5 Audio Class-Specific AC interface Descriptor Subtypes*/
29#define HEADER 0x01
30#define INPUT_TERMINAL 0x02
31#define OUTPUT_TERMINAL 0x03
32#define MIXER_UNIT 0x04
33#define SELECTOR_UNIT 0x05
34#define FEATURE_UNIT 0x06
35#define PROCESSING_UNIT 0x07
36#define EXTENSION_UNIT 0x08
37
38#define AS_GENERAL 0x01
39#define FORMAT_TYPE 0x02
40#define FORMAT_SPECIFIC 0x03
41
42#define EP_GENERAL 0x01
43
44#define MS_GENERAL 0x01
45#define MIDI_IN_JACK 0x02
46#define MIDI_OUT_JACK 0x03
47
c47d7b09
BW		 48/* cs endpoint attributes */
49#define EP_CS_ATTR_SAMPLE_RATE 0x01
50#define EP_CS_ATTR_PITCH_CONTROL 0x02
51#define EP_CS_ATTR_FILL_MAX 0x80
52
53/* Audio Class specific Request Codes */
54#define USB_AUDIO_SET_INTF 0x21
55#define USB_AUDIO_SET_ENDPOINT 0x22
56#define USB_AUDIO_GET_INTF 0xa1
57#define USB_AUDIO_GET_ENDPOINT 0xa2
58
59#define SET_ 0x00
60#define GET_ 0x80
61
62#define _CUR 0x1
63#define _MIN 0x2
64#define _MAX 0x3
65#define _RES 0x4
66#define _MEM 0x5
67
68#define SET_CUR (SET_ | _CUR)
69#define GET_CUR (GET_ | _CUR)
70#define SET_MIN (SET_ | _MIN)
71#define GET_MIN (GET_ | _MIN)
72#define SET_MAX (SET_ | _MAX)
73#define GET_MAX (GET_ | _MAX)
74#define SET_RES (SET_ | _RES)
75#define GET_RES (GET_ | _RES)
76#define SET_MEM (SET_ | _MEM)
77#define GET_MEM (GET_ | _MEM)
78
79#define GET_STAT 0xff
80
81#define USB_AC_TERMINAL_UNDEFINED 0x100
82#define USB_AC_TERMINAL_STREAMING 0x101
83#define USB_AC_TERMINAL_VENDOR_SPEC 0x1FF
84
85/* Terminal Control Selectors */
f2ebf92c
BW		 86/* 4.3.2 Class-Specific AC Interface Descriptor */
87struct usb_ac_header_descriptor {
c47d7b09 88 __u8 bLength; /* 8 + n */
41dceed5
GKH		 89 __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
90 __u8 bDescriptorSubtype; /* USB_MS_HEADER */
91 __le16 bcdADC; /* 0x0100 */
92 __le16 wTotalLength; /* includes Unit and Terminal desc. */
93 __u8 bInCollection; /* n */
94 __u8 baInterfaceNr[]; /* [n] */
f2ebf92c
BW		 95} __attribute__ ((packed));
96
c47d7b09 97#define USB_DT_AC_HEADER_SIZE(n) (8 + (n))
f2ebf92c
BW		 98
99/* As above, but more useful for defining your own descriptors: */
100#define DECLARE_USB_AC_HEADER_DESCRIPTOR(n) \
101struct usb_ac_header_descriptor_##n { \
102 __u8 bLength; \
103 __u8 bDescriptorType; \
104 __u8 bDescriptorSubtype; \
105 __le16 bcdADC; \
106 __le16 wTotalLength; \
107 __u8 bInCollection; \
108 __u8 baInterfaceNr[n]; \
109} __attribute__ ((packed))
110
c47d7b09
BW		 111/* 4.3.2.1 Input Terminal Descriptor */
112struct usb_input_terminal_descriptor {
113 __u8 bLength; /* in bytes: 12 */
114 __u8 bDescriptorType; /* CS_INTERFACE descriptor type */
115 __u8 bDescriptorSubtype; /* INPUT_TERMINAL descriptor subtype */
116 __u8 bTerminalID; /* Constant uniquely terminal ID */
117 __le16 wTerminalType; /* USB Audio Terminal Types */
118 __u8 bAssocTerminal; /* ID of the Output Terminal associated */
119 __u8 bNrChannels; /* Number of logical output channels */
120 __le16 wChannelConfig;
121 __u8 iChannelNames;
122 __u8 iTerminal;
123} __attribute__ ((packed));
124
125#define USB_DT_AC_INPUT_TERMINAL_SIZE 12
126
127#define USB_AC_INPUT_TERMINAL_UNDEFINED 0x200
128#define USB_AC_INPUT_TERMINAL_MICROPHONE 0x201
129#define USB_AC_INPUT_TERMINAL_DESKTOP_MICROPHONE 0x202
130#define USB_AC_INPUT_TERMINAL_PERSONAL_MICROPHONE 0x203
131#define USB_AC_INPUT_TERMINAL_OMNI_DIR_MICROPHONE 0x204
132#define USB_AC_INPUT_TERMINAL_MICROPHONE_ARRAY 0x205
133#define USB_AC_INPUT_TERMINAL_PROC_MICROPHONE_ARRAY 0x206
134
135/* 4.3.2.2 Output Terminal Descriptor */
136struct usb_output_terminal_descriptor {
137 __u8 bLength; /* in bytes: 9 */
138 __u8 bDescriptorType; /* CS_INTERFACE descriptor type */
139 __u8 bDescriptorSubtype; /* OUTPUT_TERMINAL descriptor subtype */
140 __u8 bTerminalID; /* Constant uniquely terminal ID */
141 __le16 wTerminalType; /* USB Audio Terminal Types */
142 __u8 bAssocTerminal; /* ID of the Input Terminal associated */
143 __u8 bSourceID; /* ID of the connected Unit or Terminal*/
144 __u8 iTerminal;
145} __attribute__ ((packed));
146
147#define USB_DT_AC_OUTPUT_TERMINAL_SIZE 9
148
149#define USB_AC_OUTPUT_TERMINAL_UNDEFINED 0x300
150#define USB_AC_OUTPUT_TERMINAL_SPEAKER 0x301
151#define USB_AC_OUTPUT_TERMINAL_HEADPHONES 0x302
152#define USB_AC_OUTPUT_TERMINAL_HEAD_MOUNTED_DISPLAY_AUDIO 0x303
153#define USB_AC_OUTPUT_TERMINAL_DESKTOP_SPEAKER 0x304
154#define USB_AC_OUTPUT_TERMINAL_ROOM_SPEAKER 0x305
155#define USB_AC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER 0x306
156#define USB_AC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER 0x307
157
158/* Set bControlSize = 2 as default setting */
159#define USB_DT_AC_FEATURE_UNIT_SIZE(ch) (7 + ((ch) + 1) * 2)
160
161/* As above, but more useful for defining your own descriptors: */
162#define DECLARE_USB_AC_FEATURE_UNIT_DESCRIPTOR(ch) \
163struct usb_ac_feature_unit_descriptor_##ch { \
164 __u8 bLength; \
165 __u8 bDescriptorType; \
166 __u8 bDescriptorSubtype; \
167 __u8 bUnitID; \
168 __u8 bSourceID; \
169 __u8 bControlSize; \
170 __le16 bmaControls[ch + 1]; \
171 __u8 iFeature; \
172} __attribute__ ((packed))
173
174/* 4.5.2 Class-Specific AS Interface Descriptor */
175struct usb_as_header_descriptor {
176 __u8 bLength; /* in bytes: 7 */
177 __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
178 __u8 bDescriptorSubtype; /* AS_GENERAL */
179 __u8 bTerminalLink; /* Terminal ID of connected Terminal */
180 __u8 bDelay; /* Delay introduced by the data path */
181 __le16 wFormatTag; /* The Audio Data Format */
182} __attribute__ ((packed));
183
184#define USB_DT_AS_HEADER_SIZE 7
185
186#define USB_AS_AUDIO_FORMAT_TYPE_I_UNDEFINED 0x0
187#define USB_AS_AUDIO_FORMAT_TYPE_I_PCM 0x1
188#define USB_AS_AUDIO_FORMAT_TYPE_I_PCM8 0x2
189#define USB_AS_AUDIO_FORMAT_TYPE_I_IEEE_FLOAT 0x3
190#define USB_AS_AUDIO_FORMAT_TYPE_I_ALAW 0x4
191#define USB_AS_AUDIO_FORMAT_TYPE_I_MULAW 0x5
192
193struct usb_as_format_type_i_continuous_descriptor {
194 __u8 bLength; /* in bytes: 8 + (ns * 3) */
195 __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
196 __u8 bDescriptorSubtype; /* FORMAT_TYPE */
197 __u8 bFormatType; /* FORMAT_TYPE_1 */
198 __u8 bNrChannels; /* physical channels in the stream */
199 __u8 bSubframeSize; /* */
200 __u8 bBitResolution;
201 __u8 bSamFreqType;
202 __u8 tLowerSamFreq[3];
203 __u8 tUpperSamFreq[3];
204} __attribute__ ((packed));
205
206#define USB_AS_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE 14
207
208struct usb_as_formate_type_i_discrete_descriptor {
209 __u8 bLength; /* in bytes: 8 + (ns * 3) */
210 __u8 bDescriptorType; /* USB_DT_CS_INTERFACE */
211 __u8 bDescriptorSubtype; /* FORMAT_TYPE */
212 __u8 bFormatType; /* FORMAT_TYPE_1 */
213 __u8 bNrChannels; /* physical channels in the stream */
214 __u8 bSubframeSize; /* */
215 __u8 bBitResolution;
216 __u8 bSamFreqType;
217 __u8 tSamFreq[][3];
218} __attribute__ ((packed));
219
220#define DECLARE_USB_AS_FORMAT_TYPE_I_DISCRETE_DESC(n) \
221struct usb_as_formate_type_i_discrete_descriptor_##n { \
222 __u8 bLength; \
223 __u8 bDescriptorType; \
224 __u8 bDescriptorSubtype; \
225 __u8 bFormatType; \
226 __u8 bNrChannels; \
227 __u8 bSubframeSize; \
228 __u8 bBitResolution; \
229 __u8 bSamFreqType; \
230 __u8 tSamFreq[n][3]; \
231} __attribute__ ((packed))
232
233#define USB_AS_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(n) (8 + (n * 3))
234
235#define USB_AS_FORMAT_TYPE_UNDEFINED 0x0
236#define USB_AS_FORMAT_TYPE_I 0x1
237#define USB_AS_FORMAT_TYPE_II 0x2
238#define USB_AS_FORMAT_TYPE_III 0x3
239
c47d7b09
BW		 240struct usb_as_iso_endpoint_descriptor {
241 __u8 bLength; /* in bytes: 7 */
242 __u8 bDescriptorType; /* USB_DT_CS_ENDPOINT */
243 __u8 bDescriptorSubtype; /* EP_GENERAL */
244 __u8 bmAttributes;
245 __u8 bLockDelayUnits;
246 __le16 wLockDelay;
247};
248#define USB_AS_ISO_ENDPOINT_DESC_SIZE 7
249
250#define FU_CONTROL_UNDEFINED 0x00
251#define MUTE_CONTROL 0x01
252#define VOLUME_CONTROL 0x02
253#define BASS_CONTROL 0x03
254#define MID_CONTROL 0x04
255#define TREBLE_CONTROL 0x05
256#define GRAPHIC_EQUALIZER_CONTROL 0x06
257#define AUTOMATIC_GAIN_CONTROL 0x07
258#define DELAY_CONTROL 0x08
259#define BASS_BOOST_CONTROL 0x09
260#define LOUDNESS_CONTROL 0x0a
261
262#define FU_MUTE (1 << (MUTE_CONTROL - 1))
263#define FU_VOLUME (1 << (VOLUME_CONTROL - 1))
264#define FU_BASS (1 << (BASS_CONTROL - 1))
265#define FU_MID (1 << (MID_CONTROL - 1))
266#define FU_TREBLE (1 << (TREBLE_CONTROL - 1))
267#define FU_GRAPHIC_EQ (1 << (GRAPHIC_EQUALIZER_CONTROL - 1))
268#define FU_AUTO_GAIN (1 << (AUTOMATIC_GAIN_CONTROL - 1))
269#define FU_DELAY (1 << (DELAY_CONTROL - 1))
270#define FU_BASS_BOOST (1 << (BASS_BOOST_CONTROL - 1))
271#define FU_LOUDNESS (1 << (LOUDNESS_CONTROL - 1))
272
273struct usb_audio_control {
274 struct list_head list;
275 const char *name;
276 u8 type;
277 int data[5];
278 int (*set)(struct usb_audio_control *con, u8 cmd, int value);
279 int (*get)(struct usb_audio_control *con, u8 cmd);
280};
281
282static inline int generic_set_cmd(struct usb_audio_control *con, u8 cmd, int value)
283{
284 con->data[cmd] = value;
285
286 return 0;
287}
288
289static inline int generic_get_cmd(struct usb_audio_control *con, u8 cmd)
290{
291 return con->data[cmd];
292}
293
294struct usb_audio_control_selector {
295 struct list_head list;
296 struct list_head control;
297 u8 id;
298 const char *name;
299 u8 type;
300 struct usb_descriptor_header *desc;
301};
302
dda43a0e 303#endif /* __LINUX_USB_AUDIO_H */
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