1 /*
2 * Line6 Linux USB driver - 0.9.1beta
3 *
4 * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, version 2.
9 *
10 */
11
12 #include <sound/core.h>
13 #include <sound/initval.h>
14 #include <linux/export.h>
15
16 #include "driver.h"
17 #include "audio.h"
18
19 /*
20 Initialize the Line6 USB audio system.
21 */
line6_init_audio(struct usb_line6 * line6)22 int line6_init_audio(struct usb_line6 *line6)
23 {
24 struct snd_card *card;
25 int err;
26
27 err = snd_card_new(line6->ifcdev,
28 SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
29 THIS_MODULE, 0, &card);
30 if (err < 0)
31 return err;
32
33 line6->card = card;
34
35 strcpy(card->id, line6->properties->id);
36 strcpy(card->driver, DRIVER_NAME);
37 strcpy(card->shortname, line6->properties->name);
38 /* longname is 80 chars - see asound.h */
39 sprintf(card->longname, "Line6 %s at USB %s", line6->properties->name,
40 dev_name(line6->ifcdev));
41 return 0;
42 }
43
44 /*
45 Register the Line6 USB audio system.
46 */
line6_register_audio(struct usb_line6 * line6)47 int line6_register_audio(struct usb_line6 *line6)
48 {
49 int err;
50
51 err = snd_card_register(line6->card);
52 if (err < 0)
53 return err;
54
55 return 0;
56 }
57
58 /*
59 Cleanup the Line6 USB audio system.
60 */
line6_cleanup_audio(struct usb_line6 * line6)61 void line6_cleanup_audio(struct usb_line6 *line6)
62 {
63 struct snd_card *card = line6->card;
64
65 if (card == NULL)
66 return;
67
68 snd_card_disconnect(card);
69 snd_card_free(card);
70 line6->card = NULL;
71 }
72