aboutsummaryrefslogtreecommitdiffstats
path: root/sound/firewire/oxfw/oxfw.c
blob: 8c6ce019f437c310043a3686b634def68c92e424 (plain) (blame)
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
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
/*
 * oxfw.c - a part of driver for OXFW970/971 based devices
 *
 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
 * Licensed under the terms of the GNU General Public License, version 2.
 */

#include "oxfw.h"

#define OXFORD_FIRMWARE_ID_ADDRESS	(CSR_REGISTER_BASE + 0x50000)
/* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */

#define OXFORD_HARDWARE_ID_ADDRESS	(CSR_REGISTER_BASE + 0x90020)
#define OXFORD_HARDWARE_ID_OXFW970	0x39443841
#define OXFORD_HARDWARE_ID_OXFW971	0x39373100

#define VENDOR_LOUD		0x000ff2
#define VENDOR_GRIFFIN		0x001292
#define VENDOR_BEHRINGER	0x001564
#define VENDOR_LACIE		0x00d04b

#define SPECIFIER_1394TA	0x00a02d
#define VERSION_AVC		0x010001

MODULE_DESCRIPTION("Oxford Semiconductor FW970/971 driver");
MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("snd-firewire-speakers");

static bool detect_loud_models(struct fw_unit *unit)
{
	const char *const models[] = {
		"Onyxi",
		"Onyx-i",
		"d.Pro",
		"Mackie Onyx Satellite",
		"Tapco LINK.firewire 4x6",
		"U.420"};
	char model[32];
	unsigned int i;
	int err;

	err = fw_csr_string(unit->directory, CSR_MODEL,
			    model, sizeof(model));
	if (err < 0)
		return false;

	for (i = 0; i < ARRAY_SIZE(models); i++) {
		if (strcmp(models[i], model) == 0)
			break;
	}

	return (i < ARRAY_SIZE(models));
}

static int name_card(struct snd_oxfw *oxfw)
{
	struct fw_device *fw_dev = fw_parent_device(oxfw->unit);
	char vendor[24];
	char model[32];
	const char *d, *v, *m;
	u32 firmware;
	int err;

	/* get vendor name from root directory */
	err = fw_csr_string(fw_dev->config_rom + 5, CSR_VENDOR,
			    vendor, sizeof(vendor));
	if (err < 0)
		goto end;

	/* get model name from unit directory */
	err = fw_csr_string(oxfw->unit->directory, CSR_MODEL,
			    model, sizeof(model));
	if (err < 0)
		goto end;

	err = snd_fw_transaction(oxfw->unit, TCODE_READ_QUADLET_REQUEST,
				 OXFORD_FIRMWARE_ID_ADDRESS, &firmware, 4, 0);
	if (err < 0)
		goto end;
	be32_to_cpus(&firmware);

	/* to apply card definitions */
	if (oxfw->device_info) {
		d = oxfw->device_info->driver_name;
		v = oxfw->device_info->vendor_name;
		m = oxfw->device_info->model_name;
	} else {
		d = "OXFW";
		v = vendor;
		m = model;
	}

	strcpy(oxfw->card->driver, d);
	strcpy(oxfw->card->mixername, m);
	strcpy(oxfw->card->shortname, m);

	snprintf(oxfw->card->longname, sizeof(oxfw->card->longname),
		 "%s %s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
		 v, m, firmware >> 20, firmware & 0xffff,
		 fw_dev->config_rom[3], fw_dev->config_rom[4],
		 dev_name(&oxfw->unit->device), 100 << fw_dev->max_speed);
end:
	return err;
}

/*
 * This module releases the FireWire unit data after all ALSA character devices
 * are released by applications. This is for releasing stream data or finishing
 * transactions safely. Thus at returning from .remove(), this module still keep
 * references for the unit.
 */
static void oxfw_card_free(struct snd_card *card)
{
	struct snd_oxfw *oxfw = card->private_data;
	unsigned int i;

	snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
	if (oxfw->has_output)
		snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);

	fw_unit_put(oxfw->unit);

	for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
		kfree(oxfw->tx_stream_formats[i]);
		kfree(oxfw->rx_stream_formats[i]);
	}

	mutex_destroy(&oxfw->mutex);
}

static int oxfw_probe(struct fw_unit *unit,
		       const struct ieee1394_device_id *id)
{
	struct snd_card *card;
	struct snd_oxfw *oxfw;
	int err;

	if ((id->vendor_id == VENDOR_LOUD) && !detect_loud_models(unit))
		return -ENODEV;

	err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
			   sizeof(*oxfw), &card);
	if (err < 0)
		return err;

	card->private_free = oxfw_card_free;
	oxfw = card->private_data;
	oxfw->card = card;
	mutex_init(&oxfw->mutex);
	oxfw->unit = fw_unit_get(unit);
	oxfw->device_info = (const struct device_info *)id->driver_data;
	spin_lock_init(&oxfw->lock);
	init_waitqueue_head(&oxfw->hwdep_wait);

	err = snd_oxfw_stream_discover(oxfw);
	if (err < 0)
		goto error;

	err = name_card(oxfw);
	if (err < 0)
		goto error;

	err = snd_oxfw_create_pcm(oxfw);
	if (err < 0)
		goto error;

	if (oxfw->device_info) {
		err = snd_oxfw_create_mixer(oxfw);
		if (err < 0)
			goto error;
	}

	snd_oxfw_proc_init(oxfw);

	err = snd_oxfw_create_midi(oxfw);
	if (err < 0)
		goto error;

	err = snd_oxfw_create_hwdep(oxfw);
	if (err < 0)
		goto error;

	err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->rx_stream);
	if (err < 0)
		goto error;
	if (oxfw->has_output) {
		err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->tx_stream);
		if (err < 0)
			goto error;
	}

	err = snd_card_register(card);
	if (err < 0) {
		snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
		if (oxfw->has_output)
			snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
		goto error;
	}
	dev_set_drvdata(&unit->device, oxfw);

	return 0;
error:
	snd_card_free(card);
	return err;
}

static void oxfw_bus_reset(struct fw_unit *unit)
{
	struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);

	fcp_bus_reset(oxfw->unit);

	mutex_lock(&oxfw->mutex);

	snd_oxfw_stream_update_simplex(oxfw, &oxfw->rx_stream);
	if (oxfw->has_output)
		snd_oxfw_stream_update_simplex(oxfw, &oxfw->tx_stream);

	mutex_unlock(&oxfw->mutex);
}

static void oxfw_remove(struct fw_unit *unit)
{
	struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);

	/* No need to wait for releasing card object in this context. */
	snd_card_free_when_closed(oxfw->card);
}

static const struct device_info griffin_firewave = {
	.driver_name = "FireWave",
	.vendor_name = "Griffin",
	.model_name = "FireWave",
	.mixer_channels = 6,
	.mute_fb_id   = 0x01,
	.volume_fb_id = 0x02,
};

static const struct device_info lacie_speakers = {
	.driver_name = "FWSpeakers",
	.vendor_name = "LaCie",
	.model_name = "FireWire Speakers",
	.mixer_channels = 1,
	.mute_fb_id   = 0x01,
	.volume_fb_id = 0x01,
};

static const struct ieee1394_device_id oxfw_id_table[] = {
	{
		.match_flags  = IEEE1394_MATCH_VENDOR_ID |
				IEEE1394_MATCH_MODEL_ID |
				IEEE1394_MATCH_SPECIFIER_ID |
				IEEE1394_MATCH_VERSION,
		.vendor_id    = VENDOR_GRIFFIN,
		.model_id     = 0x00f970,
		.specifier_id = SPECIFIER_1394TA,
		.version      = VERSION_AVC,
		.driver_data  = (kernel_ulong_t)&griffin_firewave,
	},
	{
		.match_flags  = IEEE1394_MATCH_VENDOR_ID |
				IEEE1394_MATCH_MODEL_ID |
				IEEE1394_MATCH_SPECIFIER_ID |
				IEEE1394_MATCH_VERSION,
		.vendor_id    = VENDOR_LACIE,
		.model_id     = 0x00f970,
		.specifier_id = SPECIFIER_1394TA,
		.version      = VERSION_AVC,
		.driver_data  = (kernel_ulong_t)&lacie_speakers,
	},
	/* Behringer,F-Control Audio 202 */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= VENDOR_BEHRINGER,
		.model_id	= 0x00fc22,
	},
	/*
	 * Any Mackie(Loud) models (name string/model id):
	 *  Onyx-i series (former models):	0x081216
	 *  Mackie Onyx Satellite:		0x00200f
	 *  Tapco LINK.firewire 4x6:		0x000460
	 *  d.2 pro:				Unknown
	 *  d.4 pro:				Unknown
	 *  U.420:				Unknown
	 *  U.420d:				Unknown
	 */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_SPECIFIER_ID |
				  IEEE1394_MATCH_VERSION,
		.vendor_id	= VENDOR_LOUD,
		.specifier_id	= SPECIFIER_1394TA,
		.version	= VERSION_AVC,
	},
	{ }
};
MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table);

static struct fw_driver oxfw_driver = {
	.driver   = {
		.owner	= THIS_MODULE,
		.name	= KBUILD_MODNAME,
		.bus	= &fw_bus_type,
	},
	.probe    = oxfw_probe,
	.update   = oxfw_bus_reset,
	.remove   = oxfw_remove,
	.id_table = oxfw_id_table,
};

static int __init snd_oxfw_init(void)
{
	return driver_register(&oxfw_driver.driver);
}

static void __exit snd_oxfw_exit(void)
{
	driver_unregister(&oxfw_driver.driver);
}

module_init(snd_oxfw_init);
module_exit(snd_oxfw_exit);