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1 | #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 HEADER 0x01 |
34 | #define INPUT_TERMINAL 0x02 |
35 | #define OUTPUT_TERMINAL 0x03 |
36 | #define MIXER_UNIT 0x04 |
37 | #define SELECTOR_UNIT 0x05 |
38 | #define FEATURE_UNIT 0x06 |
39 | #define PROCESSING_UNIT 0x07 |
40 | #define EXTENSION_UNIT 0x08 |
41 | |
42 | #define AS_GENERAL 0x01 |
43 | #define FORMAT_TYPE 0x02 |
44 | #define FORMAT_SPECIFIC 0x03 |
45 | |
46 | #define EP_GENERAL 0x01 |
47 | |
48 | #define MS_GENERAL 0x01 |
49 | #define MIDI_IN_JACK 0x02 |
50 | #define MIDI_OUT_JACK 0x03 |
51 | |
52 | /* endpoint attributes */ |
53 | #define EP_ATTR_MASK 0x0c |
54 | #define EP_ATTR_ASYNC 0x04 |
55 | #define EP_ATTR_ADAPTIVE 0x08 |
56 | #define EP_ATTR_SYNC 0x0c |
57 | |
58 | /* cs endpoint attributes */ |
59 | #define EP_CS_ATTR_SAMPLE_RATE 0x01 |
60 | #define EP_CS_ATTR_PITCH_CONTROL 0x02 |
61 | #define EP_CS_ATTR_FILL_MAX 0x80 |
62 | |
63 | /* Audio Class specific Request Codes */ |
64 | |
65 | #define SET_CUR 0x01 |
66 | #define GET_CUR 0x81 |
67 | #define SET_MIN 0x02 |
68 | #define GET_MIN 0x82 |
69 | #define SET_MAX 0x03 |
70 | #define GET_MAX 0x83 |
71 | #define SET_RES 0x04 |
72 | #define GET_RES 0x84 |
73 | #define SET_MEM 0x05 |
74 | #define GET_MEM 0x85 |
75 | #define GET_STAT 0xff |
76 | |
77 | /* Terminal Control Selectors */ |
78 | |
79 | #define COPY_PROTECT_CONTROL 0x01 |
80 | |
81 | /* Endpoint Control Selectors */ |
82 | |
83 | #define SAMPLING_FREQ_CONTROL 0x01 |
84 | #define PITCH_CONTROL 0x02 |
85 | |
86 | /* Format Types */ |
87 | #define USB_FORMAT_TYPE_I 0x01 |
88 | #define USB_FORMAT_TYPE_II 0x02 |
89 | #define USB_FORMAT_TYPE_III 0x03 |
90 | |
91 | /* type I */ |
92 | #define USB_AUDIO_FORMAT_PCM 0x01 |
93 | #define USB_AUDIO_FORMAT_PCM8 0x02 |
94 | #define USB_AUDIO_FORMAT_IEEE_FLOAT 0x03 |
95 | #define USB_AUDIO_FORMAT_ALAW 0x04 |
96 | #define USB_AUDIO_FORMAT_MU_LAW 0x05 |
97 | |
98 | /* type II */ |
99 | #define USB_AUDIO_FORMAT_MPEG 0x1001 |
100 | #define USB_AUDIO_FORMAT_AC3 0x1002 |
101 | |
102 | /* type III */ |
103 | #define USB_AUDIO_FORMAT_IEC1937_AC3 0x2001 |
104 | #define USB_AUDIO_FORMAT_IEC1937_MPEG1_LAYER1 0x2002 |
105 | #define USB_AUDIO_FORMAT_IEC1937_MPEG2_NOEXT 0x2003 |
106 | #define USB_AUDIO_FORMAT_IEC1937_MPEG2_EXT 0x2004 |
107 | #define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER1_LS 0x2005 |
108 | #define USB_AUDIO_FORMAT_IEC1937_MPEG2_LAYER23_LS 0x2006 |
109 | |
110 | |
111 | /* maximum number of endpoints per interface */ |
112 | #define MIDI_MAX_ENDPOINTS 2 |
113 | |
114 | /* handling of USB vendor/product ID pairs as 32-bit numbers */ |
115 | #define USB_ID(vendor, product) (((vendor) << 16) | (product)) |
116 | #define USB_ID_VENDOR(id) ((id) >> 16) |
117 | #define USB_ID_PRODUCT(id) ((u16)(id)) |
118 | |
119 | /* |
120 | */ |
121 | |
122 | struct snd_usb_audio { |
123 | int index; |
124 | struct usb_device *dev; |
125 | struct snd_card *card; |
126 | u32 usb_id; |
127 | int shutdown; |
128 | int num_interfaces; |
129 | int num_suspended_intf; |
130 | |
131 | struct list_head pcm_list; /* list of pcm streams */ |
132 | int pcm_devs; |
133 | |
134 | struct list_head midi_list; /* list of midi interfaces */ |
135 | int next_midi_device; |
136 | |
137 | struct list_head mixer_list; /* list of mixer interfaces */ |
138 | }; |
139 | |
140 | /* |
141 | * Information about devices with broken descriptors |
142 | */ |
143 | |
144 | /* special values for .ifnum */ |
145 | #define QUIRK_NO_INTERFACE -2 |
146 | #define QUIRK_ANY_INTERFACE -1 |
147 | |
148 | enum quirk_type { |
149 | QUIRK_IGNORE_INTERFACE, |
150 | QUIRK_COMPOSITE, |
151 | QUIRK_MIDI_STANDARD_INTERFACE, |
152 | QUIRK_MIDI_FIXED_ENDPOINT, |
153 | QUIRK_MIDI_YAMAHA, |
154 | QUIRK_MIDI_MIDIMAN, |
155 | QUIRK_MIDI_NOVATION, |
156 | QUIRK_MIDI_FASTLANE, |
157 | QUIRK_MIDI_EMAGIC, |
158 | QUIRK_MIDI_CME, |
159 | QUIRK_MIDI_US122L, |
160 | QUIRK_AUDIO_STANDARD_INTERFACE, |
161 | QUIRK_AUDIO_FIXED_ENDPOINT, |
162 | QUIRK_AUDIO_EDIROL_UA1000, |
163 | QUIRK_AUDIO_EDIROL_UA101, |
164 | QUIRK_AUDIO_EDIROL_UAXX, |
165 | |
166 | QUIRK_TYPE_COUNT |
167 | }; |
168 | |
169 | struct snd_usb_audio_quirk { |
170 | const char *vendor_name; |
171 | const char *product_name; |
172 | int16_t ifnum; |
173 | uint16_t type; |
174 | const void *data; |
175 | }; |
176 | |
177 | /* data for QUIRK_MIDI_FIXED_ENDPOINT */ |
178 | struct snd_usb_midi_endpoint_info { |
179 | int8_t out_ep; /* ep number, 0 autodetect */ |
180 | uint8_t out_interval; /* interval for interrupt endpoints */ |
181 | int8_t in_ep; |
182 | uint8_t in_interval; |
183 | uint16_t out_cables; /* bitmask */ |
184 | uint16_t in_cables; /* bitmask */ |
185 | }; |
186 | |
187 | /* for QUIRK_MIDI_YAMAHA, data is NULL */ |
188 | |
189 | /* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info |
190 | * structure (out_cables and in_cables only) */ |
191 | |
192 | /* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk |
193 | * structures, terminated with .ifnum = -1 */ |
194 | |
195 | /* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */ |
196 | |
197 | /* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */ |
198 | |
199 | /* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */ |
200 | |
201 | /* for QUIRK_IGNORE_INTERFACE, data is NULL */ |
202 | |
203 | /* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */ |
204 | |
205 | /* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info |
206 | * structure (out_cables and in_cables only) */ |
207 | |
208 | /* for QUIRK_MIDI_CME, data is NULL */ |
209 | |
210 | /* |
211 | */ |
212 | |
213 | #define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8)) |
214 | #define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) |
215 | #define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) |
216 | |
217 | unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size); |
218 | |
219 | void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype); |
220 | void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype); |
221 | |
222 | int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, |
223 | __u8 request, __u8 requesttype, __u16 value, __u16 index, |
224 | void *data, __u16 size, int timeout); |
225 | |
226 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
227 | int ignore_error); |
228 | void snd_usb_mixer_disconnect(struct list_head *p); |
229 | |
230 | int snd_usb_create_midi_interface(struct snd_usb_audio *chip, struct usb_interface *iface, |
231 | const struct snd_usb_audio_quirk *quirk); |
232 | void snd_usbmidi_input_stop(struct list_head* p); |
233 | void snd_usbmidi_input_start(struct list_head* p); |
234 | void snd_usbmidi_disconnect(struct list_head *p); |
235 | |
236 | /* |
237 | * retrieve usb_interface descriptor from the host interface |
238 | * (conditional for compatibility with the older API) |
239 | */ |
240 | #ifndef get_iface_desc |
241 | #define get_iface_desc(iface) (&(iface)->desc) |
242 | #define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc) |
243 | #define get_ep_desc(ep) (&(ep)->desc) |
244 | #define get_cfg_desc(cfg) (&(cfg)->desc) |
245 | #endif |
246 | |
247 | #ifndef snd_usb_get_speed |
248 | #define snd_usb_get_speed(dev) ((dev)->speed) |
249 | #endif |
250 | |
251 | #endif /* __USBAUDIO_H */ |
252 |
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