summaryrefslogtreecommitdiff
path: root/sound/firewire/dice/dice.c
blob: 6036a5edbcb85eccd6c794945639a74ddb31a071 (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
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
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
// SPDX-License-Identifier: GPL-2.0-only
/*
 * TC Applied Technologies Digital Interface Communications Engine driver
 *
 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
 */

#include "dice.h"

MODULE_DESCRIPTION("DICE driver");
MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_LICENSE("GPL v2");

#define OUI_WEISS		0x001c6a
#define OUI_LOUD		0x000ff2
#define OUI_FOCUSRITE		0x00130e
#define OUI_TCELECTRONIC	0x000166
#define OUI_ALESIS		0x000595
#define OUI_MAUDIO		0x000d6c
#define OUI_MYTEK		0x001ee8
#define OUI_SSL			0x0050c2	// Actually ID reserved by IEEE.
#define OUI_PRESONUS		0x000a92
#define OUI_HARMAN		0x000fd7
#define OUI_AVID		0x00a07e

#define DICE_CATEGORY_ID	0x04
#define WEISS_CATEGORY_ID	0x00
#define LOUD_CATEGORY_ID	0x10
#define HARMAN_CATEGORY_ID	0x20

#define MODEL_ALESIS_IO_BOTH	0x000001

static int check_dice_category(struct fw_unit *unit)
{
	struct fw_device *device = fw_parent_device(unit);
	struct fw_csr_iterator it;
	int key, val, vendor = -1, model = -1;
	unsigned int category;

	/*
	 * Check that GUID and unit directory are constructed according to DICE
	 * rules, i.e., that the specifier ID is the GUID's OUI, and that the
	 * GUID chip ID consists of the 8-bit category ID, the 10-bit product
	 * ID, and a 22-bit serial number.
	 */
	fw_csr_iterator_init(&it, unit->directory);
	while (fw_csr_iterator_next(&it, &key, &val)) {
		switch (key) {
		case CSR_SPECIFIER_ID:
			vendor = val;
			break;
		case CSR_MODEL:
			model = val;
			break;
		}
	}

	if (vendor == OUI_WEISS)
		category = WEISS_CATEGORY_ID;
	else if (vendor == OUI_LOUD)
		category = LOUD_CATEGORY_ID;
	else if (vendor == OUI_HARMAN)
		category = HARMAN_CATEGORY_ID;
	else
		category = DICE_CATEGORY_ID;
	if (device->config_rom[3] != ((vendor << 8) | category) ||
	    device->config_rom[4] >> 22 != model)
		return -ENODEV;

	return 0;
}

static int check_clock_caps(struct snd_dice *dice)
{
	__be32 value;
	int err;

	/* some very old firmwares don't tell about their clock support */
	if (dice->clock_caps > 0) {
		err = snd_dice_transaction_read_global(dice,
						GLOBAL_CLOCK_CAPABILITIES,
						&value, 4);
		if (err < 0)
			return err;
		dice->clock_caps = be32_to_cpu(value);
	} else {
		/* this should be supported by any device */
		dice->clock_caps = CLOCK_CAP_RATE_44100 |
				   CLOCK_CAP_RATE_48000 |
				   CLOCK_CAP_SOURCE_ARX1 |
				   CLOCK_CAP_SOURCE_INTERNAL;
	}

	return 0;
}

static void dice_card_strings(struct snd_dice *dice)
{
	struct snd_card *card = dice->card;
	struct fw_device *dev = fw_parent_device(dice->unit);
	char vendor[32], model[32];
	unsigned int i;
	int err;

	strcpy(card->driver, "DICE");

	strcpy(card->shortname, "DICE");
	BUILD_BUG_ON(NICK_NAME_SIZE < sizeof(card->shortname));
	err = snd_dice_transaction_read_global(dice, GLOBAL_NICK_NAME,
					       card->shortname,
					       sizeof(card->shortname));
	if (err >= 0) {
		/* DICE strings are returned in "always-wrong" endianness */
		BUILD_BUG_ON(sizeof(card->shortname) % 4 != 0);
		for (i = 0; i < sizeof(card->shortname); i += 4)
			swab32s((u32 *)&card->shortname[i]);
		card->shortname[sizeof(card->shortname) - 1] = '\0';
	}

	strcpy(vendor, "?");
	fw_csr_string(dev->config_rom + 5, CSR_VENDOR, vendor, sizeof(vendor));
	strcpy(model, "?");
	fw_csr_string(dice->unit->directory, CSR_MODEL, model, sizeof(model));
	snprintf(card->longname, sizeof(card->longname),
		 "%s %s (serial %u) at %s, S%d",
		 vendor, model, dev->config_rom[4] & 0x3fffff,
		 dev_name(&dice->unit->device), 100 << dev->max_speed);

	strcpy(card->mixername, "DICE");
}

static void dice_card_free(struct snd_card *card)
{
	struct snd_dice *dice = card->private_data;

	snd_dice_stream_destroy_duplex(dice);
	snd_dice_transaction_destroy(dice);

	mutex_destroy(&dice->mutex);
	fw_unit_put(dice->unit);
}

static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *entry)
{
	struct snd_card *card;
	struct snd_dice *dice;
	snd_dice_detect_formats_t detect_formats;
	int err;

	if (!entry->driver_data && entry->vendor_id != OUI_SSL) {
		err = check_dice_category(unit);
		if (err < 0)
			return -ENODEV;
	}

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

	dice = card->private_data;
	dice->unit = fw_unit_get(unit);
	dev_set_drvdata(&unit->device, dice);
	dice->card = card;

	if (!entry->driver_data)
		detect_formats = snd_dice_stream_detect_current_formats;
	else
		detect_formats = (snd_dice_detect_formats_t)entry->driver_data;

	// Below models are compliant to IEC 61883-1/6 and have no quirk at high sampling transfer
	// frequency.
	// * Avid M-Box 3 Pro
	// * M-Audio Profire 610
	// * M-Audio Profire 2626
	if (entry->vendor_id == OUI_MAUDIO || entry->vendor_id == OUI_AVID)
		dice->disable_double_pcm_frames = true;

	spin_lock_init(&dice->lock);
	mutex_init(&dice->mutex);
	init_completion(&dice->clock_accepted);
	init_waitqueue_head(&dice->hwdep_wait);

	err = snd_dice_transaction_init(dice);
	if (err < 0)
		goto error;

	err = check_clock_caps(dice);
	if (err < 0)
		goto error;

	dice_card_strings(dice);

	err = detect_formats(dice);
	if (err < 0)
		goto error;

	err = snd_dice_stream_init_duplex(dice);
	if (err < 0)
		goto error;

	snd_dice_create_proc(dice);

	err = snd_dice_create_pcm(dice);
	if (err < 0)
		goto error;

	err = snd_dice_create_midi(dice);
	if (err < 0)
		goto error;

	err = snd_dice_create_hwdep(dice);
	if (err < 0)
		goto error;

	err = snd_card_register(card);
	if (err < 0)
		goto error;

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

static void dice_remove(struct fw_unit *unit)
{
	struct snd_dice *dice = dev_get_drvdata(&unit->device);

	// Block till all of ALSA character devices are released.
	snd_card_free(dice->card);
}

static void dice_bus_reset(struct fw_unit *unit)
{
	struct snd_dice *dice = dev_get_drvdata(&unit->device);

	/* The handler address register becomes initialized. */
	snd_dice_transaction_reinit(dice);

	mutex_lock(&dice->mutex);
	snd_dice_stream_update_duplex(dice);
	mutex_unlock(&dice->mutex);
}

#define DICE_INTERFACE	0x000001

#define DICE_DEV_ENTRY_TYPICAL(vendor, model, data) \
	{ \
		.match_flags	= IEEE1394_MATCH_VENDOR_ID | \
				  IEEE1394_MATCH_MODEL_ID | \
				  IEEE1394_MATCH_SPECIFIER_ID | \
				  IEEE1394_MATCH_VERSION, \
		.vendor_id	= (vendor), \
		.model_id	= (model), \
		.specifier_id	= (vendor), \
		.version	= DICE_INTERFACE, \
		.driver_data = (kernel_ulong_t)(data), \
	}

static const struct ieee1394_device_id dice_id_table[] = {
	// Avid M-Box 3 Pro. To match in probe function.
	DICE_DEV_ENTRY_TYPICAL(OUI_AVID, 0x000004, snd_dice_detect_extension_formats),
	/* M-Audio Profire 2626 has a different value in version field. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_MAUDIO,
		.model_id	= 0x000010,
		.driver_data = (kernel_ulong_t)snd_dice_detect_extension_formats,
	},
	/* M-Audio Profire 610 has a different value in version field. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_MAUDIO,
		.model_id	= 0x000011,
		.driver_data = (kernel_ulong_t)snd_dice_detect_extension_formats,
	},
	/* TC Electronic Konnekt 24D. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_TCELECTRONIC,
		.model_id	= 0x000020,
		.driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
	},
	/* TC Electronic Konnekt 8. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_TCELECTRONIC,
		.model_id	= 0x000021,
		.driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
	},
	/* TC Electronic Studio Konnekt 48. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_TCELECTRONIC,
		.model_id	= 0x000022,
		.driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
	},
	/* TC Electronic Konnekt Live. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_TCELECTRONIC,
		.model_id	= 0x000023,
		.driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
	},
	/* TC Electronic Desktop Konnekt 6. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_TCELECTRONIC,
		.model_id	= 0x000024,
		.driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
	},
	/* TC Electronic Impact Twin. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_TCELECTRONIC,
		.model_id	= 0x000027,
		.driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
	},
	/* TC Electronic Digital Konnekt x32. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_TCELECTRONIC,
		.model_id	= 0x000030,
		.driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
	},
	/* Alesis iO14/iO26. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_ALESIS,
		.model_id	= MODEL_ALESIS_IO_BOTH,
		.driver_data = (kernel_ulong_t)snd_dice_detect_alesis_formats,
	},
	// Alesis MasterControl.
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_ALESIS,
		.model_id	= 0x000002,
		.driver_data = (kernel_ulong_t)snd_dice_detect_alesis_mastercontrol_formats,
	},
	/* Mytek Stereo 192 DSD-DAC. */
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_MYTEK,
		.model_id	= 0x000002,
		.driver_data = (kernel_ulong_t)snd_dice_detect_mytek_formats,
	},
	// Solid State Logic, Duende Classic and Mini.
	// NOTE: each field of GUID in config ROM is not compliant to standard
	// DICE scheme.
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_SSL,
		.model_id	= 0x000070,
	},
	// Presonus FireStudio.
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_PRESONUS,
		.model_id	= 0x000008,
		.driver_data	= (kernel_ulong_t)snd_dice_detect_presonus_formats,
	},
	// Lexicon I-ONYX FW810S.
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_HARMAN,
		.model_id	= 0x000001,
		.driver_data	= (kernel_ulong_t)snd_dice_detect_harman_formats,
	},
	// Focusrite Saffire Pro 40 with TCD3070-CH.
	// The model has quirk in its GUID, in which model field is 0x000013 and different from
	// model ID (0x0000de) in its root/unit directory.
	{
		.match_flags	= IEEE1394_MATCH_VENDOR_ID |
				  IEEE1394_MATCH_MODEL_ID,
		.vendor_id	= OUI_FOCUSRITE,
		.model_id	= 0x0000de,
		.driver_data	= (kernel_ulong_t)snd_dice_detect_focusrite_pro40_tcd3070_formats,
	},
	{
		.match_flags = IEEE1394_MATCH_VERSION,
		.version     = DICE_INTERFACE,
	},
	{ }
};
MODULE_DEVICE_TABLE(ieee1394, dice_id_table);

static struct fw_driver dice_driver = {
	.driver   = {
		.owner	= THIS_MODULE,
		.name	= KBUILD_MODNAME,
		.bus	= &fw_bus_type,
	},
	.probe    = dice_probe,
	.update   = dice_bus_reset,
	.remove   = dice_remove,
	.id_table = dice_id_table,
};

static int __init alsa_dice_init(void)
{
	return driver_register(&dice_driver.driver);
}

static void __exit alsa_dice_exit(void)
{
	driver_unregister(&dice_driver.driver);
}

module_init(alsa_dice_init);
module_exit(alsa_dice_exit);