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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/*
* Linux driver for TerraTec DMX 6Fire USB
*
* Main routines and module definitions.
*
* Author: Torsten Schenk <torsten.schenk@zoho.com>
* Created: Jan 01, 2011
* Copyright: (C) Torsten Schenk
*
* 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.
*/
#include "chip.h"
#include "firmware.h"
#include "pcm.h"
#include "control.h"
#include "comm.h"
#include "midi.h"
#include <linux/moduleparam.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/gfp.h>
#include <sound/initval.h>
MODULE_AUTHOR("Torsten Schenk <torsten.schenk@zoho.com>");
MODULE_DESCRIPTION("TerraTec DMX 6Fire USB audio driver");
MODULE_LICENSE("GPL v2");
MODULE_SUPPORTED_DEVICE("{{TerraTec, DMX 6Fire USB}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable card */
static struct sfire_chip *chips[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
static struct usb_device *devices[SNDRV_CARDS] = SNDRV_DEFAULT_PTR;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for the 6fire sound device");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for the 6fire sound device.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable the 6fire sound device.");
static DEFINE_MUTEX(register_mutex);
static void usb6fire_chip_abort(struct sfire_chip *chip)
{
if (chip) {
if (chip->pcm)
usb6fire_pcm_abort(chip);
if (chip->midi)
usb6fire_midi_abort(chip);
if (chip->comm)
usb6fire_comm_abort(chip);
if (chip->control)
usb6fire_control_abort(chip);
if (chip->card) {
snd_card_disconnect(chip->card);
snd_card_free_when_closed(chip->card);
chip->card = NULL;
}
}
}
static void usb6fire_chip_destroy(struct sfire_chip *chip)
{
if (chip) {
if (chip->pcm)
usb6fire_pcm_destroy(chip);
if (chip->midi)
usb6fire_midi_destroy(chip);
if (chip->comm)
usb6fire_comm_destroy(chip);
if (chip->control)
usb6fire_control_destroy(chip);
if (chip->card)
snd_card_free(chip->card);
}
}
static int __devinit usb6fire_chip_probe(struct usb_interface *intf,
const struct usb_device_id *usb_id)
{
int ret;
int i;
struct sfire_chip *chip = NULL;
struct usb_device *device = interface_to_usbdev(intf);
int regidx = -1; /* index in module parameter array */
struct snd_card *card = NULL;
/* look if we already serve this card and return if so */
mutex_lock(®ister_mutex);
for (i = 0; i < SNDRV_CARDS; i++) {
if (devices[i] == device) {
if (chips[i])
chips[i]->intf_count++;
usb_set_intfdata(intf, chips[i]);
mutex_unlock(®ister_mutex);
return 0;
} else if (regidx < 0)
regidx = i;
}
if (regidx < 0) {
mutex_unlock(®ister_mutex);
snd_printk(KERN_ERR PREFIX "too many cards registered.\n");
return -ENODEV;
}
devices[regidx] = device;
mutex_unlock(®ister_mutex);
/* check, if firmware is present on device, upload it if not */
ret = usb6fire_fw_init(intf);
if (ret < 0)
return ret;
else if (ret == FW_NOT_READY) /* firmware update performed */
return 0;
/* if we are here, card can be registered in alsa. */
if (usb_set_interface(device, 0, 0) != 0) {
snd_printk(KERN_ERR PREFIX "can't set first interface.\n");
return -EIO;
}
ret = snd_card_create(index[regidx], id[regidx], THIS_MODULE,
sizeof(struct sfire_chip), &card);
if (ret < 0) {
snd_printk(KERN_ERR PREFIX "cannot create alsa card.\n");
return ret;
}
strcpy(card->driver, "6FireUSB");
strcpy(card->shortname, "TerraTec DMX6FireUSB");
sprintf(card->longname, "%s at %d:%d", card->shortname,
device->bus->busnum, device->devnum);
snd_card_set_dev(card, &intf->dev);
chip = card->private_data;
chips[regidx] = chip;
chip->dev = device;
chip->regidx = regidx;
chip->intf_count = 1;
chip->card = card;
ret = usb6fire_comm_init(chip);
if (ret < 0) {
usb6fire_chip_destroy(chip);
return ret;
}
ret = usb6fire_midi_init(chip);
if (ret < 0) {
usb6fire_chip_destroy(chip);
return ret;
}
ret = usb6fire_pcm_init(chip);
if (ret < 0) {
usb6fire_chip_destroy(chip);
return ret;
}
ret = usb6fire_control_init(chip);
if (ret < 0) {
usb6fire_chip_destroy(chip);
return ret;
}
ret = snd_card_register(card);
if (ret < 0) {
snd_printk(KERN_ERR PREFIX "cannot register card.");
usb6fire_chip_destroy(chip);
return ret;
}
usb_set_intfdata(intf, chip);
return 0;
}
static void usb6fire_chip_disconnect(struct usb_interface *intf)
{
struct sfire_chip *chip;
struct snd_card *card;
chip = usb_get_intfdata(intf);
if (chip) { /* if !chip, fw upload has been performed */
card = chip->card;
chip->intf_count--;
if (!chip->intf_count) {
mutex_lock(®ister_mutex);
devices[chip->regidx] = NULL;
chips[chip->regidx] = NULL;
mutex_unlock(®ister_mutex);
chip->shutdown = true;
usb6fire_chip_abort(chip);
usb6fire_chip_destroy(chip);
}
}
}
static struct usb_device_id device_table[] = {
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = 0x0ccd,
.idProduct = 0x0080
},
{}
};
MODULE_DEVICE_TABLE(usb, device_table);
static struct usb_driver usb_driver = {
.name = "snd-usb-6fire",
.probe = usb6fire_chip_probe,
.disconnect = usb6fire_chip_disconnect,
.id_table = device_table,
};
module_usb_driver(usb_driver);
|
