summaryrefslogtreecommitdiff
path: root/sound/usb/hiface/chip.c
blob: 2670d646bda91c2f26af878fc177eec1f772007c (plain)
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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
/*
 * Linux driver for M2Tech hiFace compatible devices
 *
 * Copyright 2012-2013 (C) M2TECH S.r.l and Amarula Solutions B.V.
 *
 * Authors:  Michael Trimarchi <michael@amarulasolutions.com>
 *           Antonio Ospite <ao2@amarulasolutions.com>
 *
 * The driver is based on the work done in TerraTec DMX 6Fire USB
 *
 * 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 <linux/module.h>
#include <linux/slab.h>
#include <sound/initval.h>

#include "chip.h"
#include "pcm.h"

MODULE_AUTHOR("Michael Trimarchi <michael@amarulasolutions.com>");
MODULE_AUTHOR("Antonio Ospite <ao2@amarulasolutions.com>");
MODULE_DESCRIPTION("M2Tech hiFace USB-SPDIF audio driver");
MODULE_LICENSE("GPL v2");
MODULE_SUPPORTED_DEVICE("{{M2Tech,Young},"
			 "{M2Tech,hiFace},"
			 "{M2Tech,North Star},"
			 "{M2Tech,W4S Young},"
			 "{M2Tech,Corrson},"
			 "{M2Tech,AUDIA},"
			 "{M2Tech,SL Audio},"
			 "{M2Tech,Empirical},"
			 "{M2Tech,Rockna},"
			 "{M2Tech,Pathos},"
			 "{M2Tech,Metronome},"
			 "{M2Tech,CAD},"
			 "{M2Tech,Audio Esclusive},"
			 "{M2Tech,Rotel},"
			 "{M2Tech,Eeaudio},"
			 "{The Chord Company,CHORD},"
			 "{AVA Group A/S,Vitus}}");

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 this card */

#define DRIVER_NAME "snd-usb-hiface"
#define CARD_NAME "hiFace"

module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard.");

static DEFINE_MUTEX(register_mutex);

struct hiface_vendor_quirk {
	const char *device_name;
	u8 extra_freq;
};

static int hiface_chip_create(struct usb_interface *intf,
			      struct usb_device *device, int idx,
			      const struct hiface_vendor_quirk *quirk,
			      struct hiface_chip **rchip)
{
	struct snd_card *card = NULL;
	struct hiface_chip *chip;
	int ret;
	int len;

	*rchip = NULL;

	/* if we are here, card can be registered in alsa. */
	ret = snd_card_new(&intf->dev, index[idx], id[idx], THIS_MODULE,
			   sizeof(*chip), &card);
	if (ret < 0) {
		dev_err(&device->dev, "cannot create alsa card.\n");
		return ret;
	}

	strlcpy(card->driver, DRIVER_NAME, sizeof(card->driver));

	if (quirk && quirk->device_name)
		strlcpy(card->shortname, quirk->device_name, sizeof(card->shortname));
	else
		strlcpy(card->shortname, "M2Tech generic audio", sizeof(card->shortname));

	strlcat(card->longname, card->shortname, sizeof(card->longname));
	len = strlcat(card->longname, " at ", sizeof(card->longname));
	if (len < sizeof(card->longname))
		usb_make_path(device, card->longname + len,
			      sizeof(card->longname) - len);

	chip = card->private_data;
	chip->dev = device;
	chip->card = card;

	*rchip = chip;
	return 0;
}

static int hiface_chip_probe(struct usb_interface *intf,
			     const struct usb_device_id *usb_id)
{
	const struct hiface_vendor_quirk *quirk = (struct hiface_vendor_quirk *)usb_id->driver_info;
	int ret;
	int i;
	struct hiface_chip *chip;
	struct usb_device *device = interface_to_usbdev(intf);

	ret = usb_set_interface(device, 0, 0);
	if (ret != 0) {
		dev_err(&device->dev, "can't set first interface for " CARD_NAME " device.\n");
		return -EIO;
	}

	/* check whether the card is already registered */
	chip = NULL;
	mutex_lock(&register_mutex);

	for (i = 0; i < SNDRV_CARDS; i++)
		if (enable[i])
			break;

	if (i >= SNDRV_CARDS) {
		dev_err(&device->dev, "no available " CARD_NAME " audio device\n");
		ret = -ENODEV;
		goto err;
	}

	ret = hiface_chip_create(intf, device, i, quirk, &chip);
	if (ret < 0)
		goto err;

	ret = hiface_pcm_init(chip, quirk ? quirk->extra_freq : 0);
	if (ret < 0)
		goto err_chip_destroy;

	ret = snd_card_register(chip->card);
	if (ret < 0) {
		dev_err(&device->dev, "cannot register " CARD_NAME " card\n");
		goto err_chip_destroy;
	}

	mutex_unlock(&register_mutex);

	usb_set_intfdata(intf, chip);
	return 0;

err_chip_destroy:
	snd_card_free(chip->card);
err:
	mutex_unlock(&register_mutex);
	return ret;
}

static void hiface_chip_disconnect(struct usb_interface *intf)
{
	struct hiface_chip *chip;
	struct snd_card *card;

	chip = usb_get_intfdata(intf);
	if (!chip)
		return;

	card = chip->card;

	/* Make sure that the userspace cannot create new request */
	snd_card_disconnect(card);

	hiface_pcm_abort(chip);
	snd_card_free_when_closed(card);
}

static const struct usb_device_id device_table[] = {
	{
		USB_DEVICE(0x04b4, 0x0384),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Young",
			.extra_freq = 1,
		}
	},
	{
		USB_DEVICE(0x04b4, 0x930b),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "hiFace",
		}
	},
	{
		USB_DEVICE(0x04b4, 0x931b),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "North Star",
		}
	},
	{
		USB_DEVICE(0x04b4, 0x931c),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "W4S Young",
		}
	},
	{
		USB_DEVICE(0x04b4, 0x931d),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Corrson",
		}
	},
	{
		USB_DEVICE(0x04b4, 0x931e),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "AUDIA",
		}
	},
	{
		USB_DEVICE(0x04b4, 0x931f),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "SL Audio",
		}
	},
	{
		USB_DEVICE(0x04b4, 0x9320),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Empirical",
		}
	},
	{
		USB_DEVICE(0x04b4, 0x9321),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Rockna",
		}
	},
	{
		USB_DEVICE(0x249c, 0x9001),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Pathos",
		}
	},
	{
		USB_DEVICE(0x249c, 0x9002),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Metronome",
		}
	},
	{
		USB_DEVICE(0x249c, 0x9006),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "CAD",
		}
	},
	{
		USB_DEVICE(0x249c, 0x9008),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Audio Esclusive",
		}
	},
	{
		USB_DEVICE(0x249c, 0x931c),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Rotel",
		}
	},
	{
		USB_DEVICE(0x249c, 0x932c),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Eeaudio",
		}
	},
	{
		USB_DEVICE(0x245f, 0x931c),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "CHORD",
		}
	},
	{
		USB_DEVICE(0x25c6, 0x9002),
		.driver_info = (unsigned long)&(const struct hiface_vendor_quirk) {
			.device_name = "Vitus",
		}
	},
	{}
};

MODULE_DEVICE_TABLE(usb, device_table);

static struct usb_driver hiface_usb_driver = {
	.name = DRIVER_NAME,
	.probe = hiface_chip_probe,
	.disconnect = hiface_chip_disconnect,
	.id_table = device_table,
};

module_usb_driver(hiface_usb_driver);