1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
#ifndef __USBAUDIO_H
#define __USBAUDIO_H
/*
* (Tentative) USB Audio Driver for ALSA
*
* Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* maximum number of endpoints per interface */
#define MIDI_MAX_ENDPOINTS 2
/* handling of USB vendor/product ID pairs as 32-bit numbers */
#define USB_ID(vendor, product) (((vendor) << 16) | (product))
#define USB_ID_VENDOR(id) ((id) >> 16)
#define USB_ID_PRODUCT(id) ((u16)(id))
/*
*/
struct snd_usb_audio {
int index;
struct usb_device *dev;
struct snd_card *card;
u32 usb_id;
int shutdown;
unsigned int txfr_quirk:1; /* Subframe boundaries on transfers */
int num_interfaces;
int num_suspended_intf;
/* for audio class v2 */
int clock_id;
struct list_head pcm_list; /* list of pcm streams */
int pcm_devs;
struct list_head midi_list; /* list of midi interfaces */
struct list_head mixer_list; /* list of mixer interfaces */
};
/*
* Information about devices with broken descriptors
*/
/* special values for .ifnum */
#define QUIRK_NO_INTERFACE -2
#define QUIRK_ANY_INTERFACE -1
enum quirk_type {
QUIRK_IGNORE_INTERFACE,
QUIRK_COMPOSITE,
QUIRK_MIDI_STANDARD_INTERFACE,
QUIRK_MIDI_FIXED_ENDPOINT,
QUIRK_MIDI_YAMAHA,
QUIRK_MIDI_MIDIMAN,
QUIRK_MIDI_NOVATION,
QUIRK_MIDI_FASTLANE,
QUIRK_MIDI_EMAGIC,
QUIRK_MIDI_CME,
QUIRK_MIDI_US122L,
QUIRK_AUDIO_STANDARD_INTERFACE,
QUIRK_AUDIO_FIXED_ENDPOINT,
QUIRK_AUDIO_EDIROL_UA1000,
QUIRK_AUDIO_EDIROL_UAXX,
QUIRK_AUDIO_ALIGN_TRANSFER,
QUIRK_TYPE_COUNT
};
struct snd_usb_audio_quirk {
const char *vendor_name;
const char *product_name;
int16_t ifnum;
uint16_t type;
const void *data;
};
/* data for QUIRK_MIDI_FIXED_ENDPOINT */
struct snd_usb_midi_endpoint_info {
int8_t out_ep; /* ep number, 0 autodetect */
uint8_t out_interval; /* interval for interrupt endpoints */
int8_t in_ep;
uint8_t in_interval;
uint16_t out_cables; /* bitmask */
uint16_t in_cables; /* bitmask */
};
/* for QUIRK_MIDI_YAMAHA, data is NULL */
/* for QUIRK_MIDI_MIDIMAN, data points to a snd_usb_midi_endpoint_info
* structure (out_cables and in_cables only) */
/* for QUIRK_COMPOSITE, data points to an array of snd_usb_audio_quirk
* structures, terminated with .ifnum = -1 */
/* for QUIRK_AUDIO_FIXED_ENDPOINT, data points to an audioformat structure */
/* for QUIRK_AUDIO/MIDI_STANDARD_INTERFACE, data is NULL */
/* for QUIRK_AUDIO_EDIROL_UA700_UA25/UA1000, data is NULL */
/* for QUIRK_IGNORE_INTERFACE, data is NULL */
/* for QUIRK_MIDI_NOVATION and _RAW, data is NULL */
/* for QUIRK_MIDI_EMAGIC, data points to a snd_usb_midi_endpoint_info
* structure (out_cables and in_cables only) */
/* for QUIRK_MIDI_CME, data is NULL */
/*
*/
/*E-mu USB samplerate control quirk*/
enum {
EMU_QUIRK_SR_44100HZ = 0,
EMU_QUIRK_SR_48000HZ,
EMU_QUIRK_SR_88200HZ,
EMU_QUIRK_SR_96000HZ,
EMU_QUIRK_SR_176400HZ,
EMU_QUIRK_SR_192000HZ
};
#define combine_word(s) ((*(s)) | ((unsigned int)(s)[1] << 8))
#define combine_triple(s) (combine_word(s) | ((unsigned int)(s)[2] << 16))
#define combine_quad(s) (combine_triple(s) | ((unsigned int)(s)[3] << 24))
unsigned int snd_usb_combine_bytes(unsigned char *bytes, int size);
void *snd_usb_find_desc(void *descstart, int desclen, void *after, u8 dtype);
void *snd_usb_find_csint_desc(void *descstart, int desclen, void *after, u8 dsubtype);
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);
int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
int ignore_error);
void snd_usb_mixer_disconnect(struct list_head *p);
int snd_usbmidi_create(struct snd_card *card,
struct usb_interface *iface,
struct list_head *midi_list,
const struct snd_usb_audio_quirk *quirk);
void snd_usbmidi_input_stop(struct list_head* p);
void snd_usbmidi_input_start(struct list_head* p);
void snd_usbmidi_disconnect(struct list_head *p);
void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
unsigned char samplerate_id);
/*
* retrieve usb_interface descriptor from the host interface
* (conditional for compatibility with the older API)
*/
#ifndef get_iface_desc
#define get_iface_desc(iface) (&(iface)->desc)
#define get_endpoint(alt,ep) (&(alt)->endpoint[ep].desc)
#define get_ep_desc(ep) (&(ep)->desc)
#define get_cfg_desc(cfg) (&(cfg)->desc)
#endif
#ifndef snd_usb_get_speed
#define snd_usb_get_speed(dev) ((dev)->speed)
#endif
#endif /* __USBAUDIO_H */
|
