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1da177e4 LT |
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 | ||
1da177e4 LT |
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 | ||
27d10f56 CL |
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 | ||
1da177e4 LT |
119 | /* |
120 | */ | |
121 | ||
1da177e4 LT |
122 | struct snd_usb_audio { |
123 | int index; | |
124 | struct usb_device *dev; | |
86e07d34 | 125 | struct snd_card *card; |
27d10f56 | 126 | u32 usb_id; |
1da177e4 LT |
127 | int shutdown; |
128 | int num_interfaces; | |
129 | ||
130 | struct list_head pcm_list; /* list of pcm streams */ | |
131 | int pcm_devs; | |
132 | ||
133 | struct list_head midi_list; /* list of midi interfaces */ | |
134 | int next_midi_device; | |
135 | ||
84957a8a | 136 | struct list_head mixer_list; /* list of mixer interfaces */ |
1da177e4 LT |
137 | }; |
138 | ||
139 | /* | |
140 | * Information about devices with broken descriptors | |
141 | */ | |
142 | ||
143 | /* special values for .ifnum */ | |
144 | #define QUIRK_NO_INTERFACE -2 | |
145 | #define QUIRK_ANY_INTERFACE -1 | |
146 | ||
854af957 CL |
147 | enum quirk_type { |
148 | QUIRK_IGNORE_INTERFACE, | |
149 | QUIRK_COMPOSITE, | |
150 | QUIRK_MIDI_STANDARD_INTERFACE, | |
151 | QUIRK_MIDI_FIXED_ENDPOINT, | |
152 | QUIRK_MIDI_YAMAHA, | |
153 | QUIRK_MIDI_MIDIMAN, | |
154 | QUIRK_MIDI_NOVATION, | |
155 | QUIRK_MIDI_RAW, | |
156 | QUIRK_MIDI_EMAGIC, | |
cc7a59bd | 157 | QUIRK_MIDI_CME, |
854af957 CL |
158 | QUIRK_AUDIO_STANDARD_INTERFACE, |
159 | QUIRK_AUDIO_FIXED_ENDPOINT, | |
160 | QUIRK_AUDIO_EDIROL_UA700_UA25, | |
161 | QUIRK_AUDIO_EDIROL_UA1000, | |
162 | ||
163 | QUIRK_TYPE_COUNT | |
164 | }; | |
1da177e4 | 165 | |
1da177e4 LT |
166 | struct snd_usb_audio_quirk { |
167 | const char *vendor_name; | |
168 | const char *product_name; | |
169 | int16_t ifnum; | |
854af957 | 170 | uint16_t type; |
1da177e4 LT |
171 | const void *data; |
172 | }; | |
173 | ||
174 | /* data for QUIRK_MIDI_FIXED_ENDPOINT */ | |
175 | struct snd_usb_midi_endpoint_info { | |
176 | int8_t out_ep; /* ep number, 0 autodetect */ | |
177 | uint8_t out_interval; /* interval for interrupt endpoints */ | |
178 | int8_t in_ep; | |
179 | uint8_t in_interval; | |
180 | uint16_t out_cables; /* bitmask */ | |
181 | uint16_t in_cables; /* bitmask */ | |
182 | }; | |
183 | ||
184 | /* for QUIRK_MIDI_YAMAHA, data is NULL */ | |
185 | ||
186 | /* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info | |
187 | * structure (out_cables and in_cables only) */ | |
188 | ||
189 | /* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk | |
190 | * structures, terminated with .ifnum = -1 */ | |
191 | ||
192 | /* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */ | |
193 | ||
194 | /* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */ | |
195 | ||
196 | /* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */ | |
197 | ||
198 | /* for QUIRK_IGNORE_INTERFACE, data is NULL */ | |
199 | ||
6155aff8 | 200 | /* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */ |
1da177e4 LT |
201 | |
202 | /* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info | |
203 | * structure (out_cables and in_cables only) */ | |
204 | ||
cc7a59bd | 205 | /* for QUIRK_MIDI_CME, data is NULL */ |
f38275fe | 206 | |
1da177e4 LT |
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 | ||
86e07d34 TI |
219 | int snd_usb_ctl_msg(struct usb_device *dev, unsigned int pipe, |
220 | __u8 request, __u8 requesttype, __u16 value, __u16 index, | |
221 | void *data, __u16 size, int timeout); | |
1da177e4 | 222 | |
86e07d34 | 223 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif); |
84957a8a | 224 | void snd_usb_mixer_disconnect(struct list_head *p); |
1da177e4 | 225 | |
86e07d34 TI |
226 | int snd_usb_create_midi_interface(struct snd_usb_audio *chip, struct usb_interface *iface, |
227 | const struct snd_usb_audio_quirk *quirk); | |
1da177e4 LT |
228 | void snd_usbmidi_input_stop(struct list_head* p); |
229 | void snd_usbmidi_input_start(struct list_head* p); | |
ee733397 | 230 | void snd_usbmidi_disconnect(struct list_head *p); |
1da177e4 LT |
231 | |
232 | /* | |
233 | * retrieve usb_interface descriptor from the host interface | |
234 | * (conditional for compatibility with the older API) | |
235 | */ | |
236 | #ifndef get_iface_desc | |
237 | #define get_iface_desc(iface) (&(iface)->desc) | |
238 | #define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc) | |
239 | #define get_ep_desc(ep) (&(ep)->desc) | |
240 | #define get_cfg_desc(cfg) (&(cfg)->desc) | |
241 | #endif | |
242 | ||
1da177e4 LT |
243 | #ifndef snd_usb_get_speed |
244 | #define snd_usb_get_speed(dev) ((dev)->speed) | |
245 | #endif | |
246 | ||
247 | #endif /* __USBAUDIO_H */ |