Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/sound/usb/usbaudio.h
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Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
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Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
File MIME type: text/plain
File size: 7133 byte(s)
Tag kernel26-2.6.12-alx-r9
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 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 | |
121 | /* |
122 | */ |
123 | |
124 | typedef struct snd_usb_audio snd_usb_audio_t; |
125 | |
126 | struct snd_usb_audio { |
127 | int index; |
128 | struct usb_device *dev; |
129 | snd_card_t *card; |
130 | int shutdown; |
131 | int num_interfaces; |
132 | |
133 | struct list_head pcm_list; /* list of pcm streams */ |
134 | int pcm_devs; |
135 | |
136 | struct list_head midi_list; /* list of midi interfaces */ |
137 | int next_midi_device; |
138 | |
139 | unsigned int ignore_ctl_error; /* for mixer */ |
140 | }; |
141 | |
142 | /* |
143 | * Information about devices with broken descriptors |
144 | */ |
145 | |
146 | /* special values for .ifnum */ |
147 | #define QUIRK_NO_INTERFACE -2 |
148 | #define QUIRK_ANY_INTERFACE -1 |
149 | |
150 | /* quirk type */ |
151 | #define QUIRK_MIDI_FIXED_ENDPOINT 0 |
152 | #define QUIRK_MIDI_YAMAHA 1 |
153 | #define QUIRK_MIDI_MIDIMAN 2 |
154 | #define QUIRK_COMPOSITE 3 |
155 | #define QUIRK_AUDIO_FIXED_ENDPOINT 4 |
156 | #define QUIRK_AUDIO_STANDARD_INTERFACE 5 |
157 | #define QUIRK_MIDI_STANDARD_INTERFACE 6 |
158 | #define QUIRK_AUDIO_EDIROL_UA700_UA25 7 |
159 | #define QUIRK_AUDIO_EDIROL_UA1000 8 |
160 | #define QUIRK_IGNORE_INTERFACE 9 |
161 | #define QUIRK_MIDI_NOVATION 10 |
162 | #define QUIRK_MIDI_MOTU 11 |
163 | #define QUIRK_MIDI_EMAGIC 12 |
164 | |
165 | typedef struct snd_usb_audio_quirk snd_usb_audio_quirk_t; |
166 | typedef struct snd_usb_midi_endpoint_info snd_usb_midi_endpoint_info_t; |
167 | |
168 | struct snd_usb_audio_quirk { |
169 | const char *vendor_name; |
170 | const char *product_name; |
171 | int16_t ifnum; |
172 | int16_t type; |
173 | const void *data; |
174 | }; |
175 | |
176 | /* data for QUIRK_MIDI_FIXED_ENDPOINT */ |
177 | struct snd_usb_midi_endpoint_info { |
178 | int8_t out_ep; /* ep number, 0 autodetect */ |
179 | uint8_t out_interval; /* interval for interrupt endpoints */ |
180 | int8_t in_ep; |
181 | uint8_t in_interval; |
182 | uint16_t out_cables; /* bitmask */ |
183 | uint16_t in_cables; /* bitmask */ |
184 | }; |
185 | |
186 | /* for QUIRK_MIDI_YAMAHA, data is NULL */ |
187 | |
188 | /* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info |
189 | * structure (out_cables and in_cables only) */ |
190 | |
191 | /* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk |
192 | * structures, terminated with .ifnum = -1 */ |
193 | |
194 | /* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */ |
195 | |
196 | /* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */ |
197 | |
198 | /* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */ |
199 | |
200 | /* for QUIRK_IGNORE_INTERFACE, data is NULL */ |
201 | |
202 | /* for QUIRK_MIDI_NOVATION and _MOTU, data is NULL */ |
203 | |
204 | /* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info |
205 | * structure (out_cables and in_cables only) */ |
206 | |
207 | /* |
208 | */ |
209 | |
210 | #define combine_word(s) ((*s) | ((unsigned int)(s)[1] << 8)) |
211 | #define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16)) |
212 | #define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24)) |
213 | |
214 | unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size); |
215 | |
216 | void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype); |
217 | void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype); |
218 | |
219 | int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, __u8 request, __u8 requesttype, __u16 value, __u16 index, void *data, __u16 size, int timeout); |
220 | |
221 | int snd_usb_create_mixer(snd_usb_audio_t *chip, int ctrlif); |
222 | |
223 | int snd_usb_create_midi_interface(snd_usb_audio_t *chip, struct usb_interface *iface, const snd_usb_audio_quirk_t *quirk); |
224 | void snd_usbmidi_input_stop(struct list_head* p); |
225 | void snd_usbmidi_input_start(struct list_head* p); |
226 | void snd_usbmidi_disconnect(struct list_head *p, struct usb_driver *driver); |
227 | |
228 | /* |
229 | * retrieve usb_interface descriptor from the host interface |
230 | * (conditional for compatibility with the older API) |
231 | */ |
232 | #ifndef get_iface_desc |
233 | #define get_iface_desc(iface) (&(iface)->desc) |
234 | #define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc) |
235 | #define get_ep_desc(ep) (&(ep)->desc) |
236 | #define get_cfg_desc(cfg) (&(cfg)->desc) |
237 | #endif |
238 | |
239 | #ifndef usb_pipe_needs_resubmit |
240 | #define usb_pipe_needs_resubmit(pipe) 1 |
241 | #endif |
242 | |
243 | #ifndef snd_usb_complete_callback |
244 | #define snd_usb_complete_callback(x) (x) |
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 */ |