blob: ecd724bfe5a5246dcb5edb25d2b06587caa89740 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __USBAUDIO_H
2#define __USBAUDIO_H
3/*
4 * (Tentative) USB Audio Driver for ALSA
5 *
6 * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
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/*
26 */
27
28#define USB_SUBCLASS_AUDIO_CONTROL 0x01
29#define USB_SUBCLASS_AUDIO_STREAMING 0x02
30#define USB_SUBCLASS_MIDI_STREAMING 0x03
31#define USB_SUBCLASS_VENDOR_SPEC 0xff
32
33#define CS_AUDIO_UNDEFINED 0x20
34#define CS_AUDIO_DEVICE 0x21
35#define CS_AUDIO_CONFIGURATION 0x22
36#define CS_AUDIO_STRING 0x23
37#define CS_AUDIO_INTERFACE 0x24
38#define CS_AUDIO_ENDPOINT 0x25
39
40#define HEADER 0x01
41#define INPUT_TERMINAL 0x02
42#define OUTPUT_TERMINAL 0x03
43#define MIXER_UNIT 0x04
44#define SELECTOR_UNIT 0x05
45#define FEATURE_UNIT 0x06
46#define PROCESSING_UNIT 0x07
47#define EXTENSION_UNIT 0x08
48
49#define AS_GENERAL 0x01
50#define FORMAT_TYPE 0x02
51#define FORMAT_SPECIFIC 0x03
52
53#define EP_GENERAL 0x01
54
55#define MS_GENERAL 0x01
56#define MIDI_IN_JACK 0x02
57#define MIDI_OUT_JACK 0x03
58
59/* endpoint attributes */
60#define EP_ATTR_MASK 0x0c
61#define EP_ATTR_ASYNC 0x04
62#define EP_ATTR_ADAPTIVE 0x08
63#define EP_ATTR_SYNC 0x0c
64
65/* cs endpoint attributes */
66#define EP_CS_ATTR_SAMPLE_RATE 0x01
67#define EP_CS_ATTR_PITCH_CONTROL 0x02
68#define EP_CS_ATTR_FILL_MAX 0x80
69
70/* Audio Class specific Request Codes */
71
72#define SET_CUR 0x01
73#define GET_CUR 0x81
74#define SET_MIN 0x02
75#define GET_MIN 0x82
76#define SET_MAX 0x03
77#define GET_MAX 0x83
78#define SET_RES 0x04
79#define GET_RES 0x84
80#define SET_MEM 0x05
81#define GET_MEM 0x85
82#define GET_STAT 0xff
83
84/* Terminal Control Selectors */
85
86#define COPY_PROTECT_CONTROL 0x01
87
88/* Endpoint Control Selectors */
89
90#define SAMPLING_FREQ_CONTROL 0x01
91#define PITCH_CONTROL 0x02
92
93/* Format Types */
94#define USB_FORMAT_TYPE_I 0x01
95#define USB_FORMAT_TYPE_II 0x02
96#define USB_FORMAT_TYPE_III 0x03
97
98/* type I */
99#define USB_AUDIO_FORMAT_PCM 0x01
100#define USB_AUDIO_FORMAT_PCM8 0x02
101#define USB_AUDIO_FORMAT_IEEE_FLOAT 0x03
102#define USB_AUDIO_FORMAT_ALAW 0x04
103#define USB_AUDIO_FORMAT_MU_LAW 0x05
104
105/* type II */
106#define USB_AUDIO_FORMAT_MPEG 0x1001
107#define USB_AUDIO_FORMAT_AC3 0x1002
108
109/* type III */
110#define USB_AUDIO_FORMAT_IEC1937_AC3 0x2001
111#define USB_AUDIO_FORMAT_IEC1937_MPEG1_LAYER1 0x2002
112#define USB_AUDIO_FORMAT_IEC1937_MPEG2_NOEXT 0x2003
113#define USB_AUDIO_FORMAT_IEC1937_MPEG2_EXT 0x2004
114#define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER1_LS 0x2005
115#define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER23_LS 0x2006
116
117
118/* maximum number of endpoints per interface */
119#define MIDI_MAX_ENDPOINTS 2
120
Clemens Ladisch27d10f52005-05-02 08:51:26 +0200121/* handling of USB vendor/product ID pairs as 32-bit numbers */
122#define USB_ID(vendor, product) (((vendor) << 16) | (product))
123#define USB_ID_VENDOR(id) ((id) >> 16)
124#define USB_ID_PRODUCT(id) ((u16)(id))
125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126/*
127 */
128
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129struct snd_usb_audio {
130 int index;
131 struct usb_device *dev;
Takashi Iwai86e07d32005-11-17 15:08:02 +0100132 struct snd_card *card;
Clemens Ladisch27d10f52005-05-02 08:51:26 +0200133 u32 usb_id;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 int shutdown;
135 int num_interfaces;
136
137 struct list_head pcm_list; /* list of pcm streams */
138 int pcm_devs;
139
140 struct list_head midi_list; /* list of midi interfaces */
141 int next_midi_device;
142
Clemens Ladisch84957a82005-04-29 16:23:13 +0200143 struct list_head mixer_list; /* list of mixer interfaces */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144};
145
146/*
147 * Information about devices with broken descriptors
148 */
149
150/* special values for .ifnum */
151#define QUIRK_NO_INTERFACE -2
152#define QUIRK_ANY_INTERFACE -1
153
Clemens Ladisch854af952005-07-25 16:19:10 +0200154enum quirk_type {
155 QUIRK_IGNORE_INTERFACE,
156 QUIRK_COMPOSITE,
157 QUIRK_MIDI_STANDARD_INTERFACE,
158 QUIRK_MIDI_FIXED_ENDPOINT,
159 QUIRK_MIDI_YAMAHA,
160 QUIRK_MIDI_MIDIMAN,
161 QUIRK_MIDI_NOVATION,
162 QUIRK_MIDI_RAW,
163 QUIRK_MIDI_EMAGIC,
164 QUIRK_MIDI_MIDITECH,
165 QUIRK_AUDIO_STANDARD_INTERFACE,
166 QUIRK_AUDIO_FIXED_ENDPOINT,
167 QUIRK_AUDIO_EDIROL_UA700_UA25,
168 QUIRK_AUDIO_EDIROL_UA1000,
169
170 QUIRK_TYPE_COUNT
171};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173struct snd_usb_audio_quirk {
174 const char *vendor_name;
175 const char *product_name;
176 int16_t ifnum;
Clemens Ladisch854af952005-07-25 16:19:10 +0200177 uint16_t type;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178 const void *data;
179};
180
181/* data for QUIRK_MIDI_FIXED_ENDPOINT */
182struct snd_usb_midi_endpoint_info {
183 int8_t out_ep; /* ep number, 0 autodetect */
184 uint8_t out_interval; /* interval for interrupt endpoints */
185 int8_t in_ep;
186 uint8_t in_interval;
187 uint16_t out_cables; /* bitmask */
188 uint16_t in_cables; /* bitmask */
189};
190
191/* for QUIRK_MIDI_YAMAHA, data is NULL */
192
193/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
194 * structure (out_cables and in_cables only) */
195
196/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
197 * structures, terminated with .ifnum = -1 */
198
199/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */
200
201/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */
202
203/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */
204
205/* for QUIRK_IGNORE_INTERFACE, data is NULL */
206
Clemens Ladisch6155aff2005-07-04 09:20:42 +0200207/* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208
209/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
210 * structure (out_cables and in_cables only) */
211
Clemens Ladischf38275f2005-07-25 16:17:29 +0200212/* for QUIRK_MIDI_MIDITECH, data is NULL */
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214/*
215 */
216
217#define combine_word(s) ((*s) | ((unsigned int)(s)[1] << 8))
218#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
219#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
220
221unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size);
222
223void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype);
224void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype);
225
Takashi Iwai86e07d32005-11-17 15:08:02 +0100226int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe,
227 __u8 request, __u8 requesttype, __u16 value, __u16 index,
228 void *data, __u16 size, int timeout);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229
Takashi Iwai86e07d32005-11-17 15:08:02 +0100230int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif);
Clemens Ladisch84957a82005-04-29 16:23:13 +0200231void snd_usb_mixer_disconnect(struct list_head *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232
Takashi Iwai86e07d32005-11-17 15:08:02 +0100233int snd_usb_create_midi_interface(struct snd_usb_audio *chip, struct usb_interface *iface,
234 const struct snd_usb_audio_quirk *quirk);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235void snd_usbmidi_input_stop(struct list_head* p);
236void snd_usbmidi_input_start(struct list_head* p);
Clemens Ladischee733392005-04-25 10:34:13 +0200237void snd_usbmidi_disconnect(struct list_head *p);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238
239/*
240 * retrieve usb_interface descriptor from the host interface
241 * (conditional for compatibility with the older API)
242 */
243#ifndef get_iface_desc
244#define get_iface_desc(iface) (&(iface)->desc)
245#define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc)
246#define get_ep_desc(ep) (&(ep)->desc)
247#define get_cfg_desc(cfg) (&(cfg)->desc)
248#endif
249
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250#ifndef snd_usb_get_speed
251#define snd_usb_get_speed(dev) ((dev)->speed)
252#endif
253
254#endif /* __USBAUDIO_H */