1
2
3
4
5
6
7
8#include "dice.h"
9
10MODULE_DESCRIPTION("DICE driver");
11MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
12MODULE_LICENSE("GPL v2");
13
14#define OUI_WEISS 0x001c6a
15#define OUI_LOUD 0x000ff2
16#define OUI_FOCUSRITE 0x00130e
17#define OUI_TCELECTRONIC 0x000166
18#define OUI_ALESIS 0x000595
19#define OUI_MAUDIO 0x000d6c
20#define OUI_MYTEK 0x001ee8
21#define OUI_SSL 0x0050c2
22#define OUI_PRESONUS 0x000a92
23
24#define DICE_CATEGORY_ID 0x04
25#define WEISS_CATEGORY_ID 0x00
26#define LOUD_CATEGORY_ID 0x10
27
28#define MODEL_ALESIS_IO_BOTH 0x000001
29
30static int check_dice_category(struct fw_unit *unit)
31{
32 struct fw_device *device = fw_parent_device(unit);
33 struct fw_csr_iterator it;
34 int key, val, vendor = -1, model = -1;
35 unsigned int category;
36
37
38
39
40
41
42
43 fw_csr_iterator_init(&it, unit->directory);
44 while (fw_csr_iterator_next(&it, &key, &val)) {
45 switch (key) {
46 case CSR_SPECIFIER_ID:
47 vendor = val;
48 break;
49 case CSR_MODEL:
50 model = val;
51 break;
52 }
53 }
54
55 if (vendor == OUI_WEISS)
56 category = WEISS_CATEGORY_ID;
57 else if (vendor == OUI_LOUD)
58 category = LOUD_CATEGORY_ID;
59 else
60 category = DICE_CATEGORY_ID;
61 if (device->config_rom[3] != ((vendor << 8) | category) ||
62 device->config_rom[4] >> 22 != model)
63 return -ENODEV;
64
65 return 0;
66}
67
68static int check_clock_caps(struct snd_dice *dice)
69{
70 __be32 value;
71 int err;
72
73
74 if (dice->clock_caps > 0) {
75 err = snd_dice_transaction_read_global(dice,
76 GLOBAL_CLOCK_CAPABILITIES,
77 &value, 4);
78 if (err < 0)
79 return err;
80 dice->clock_caps = be32_to_cpu(value);
81 } else {
82
83 dice->clock_caps = CLOCK_CAP_RATE_44100 |
84 CLOCK_CAP_RATE_48000 |
85 CLOCK_CAP_SOURCE_ARX1 |
86 CLOCK_CAP_SOURCE_INTERNAL;
87 }
88
89 return 0;
90}
91
92static void dice_card_strings(struct snd_dice *dice)
93{
94 struct snd_card *card = dice->card;
95 struct fw_device *dev = fw_parent_device(dice->unit);
96 char vendor[32], model[32];
97 unsigned int i;
98 int err;
99
100 strcpy(card->driver, "DICE");
101
102 strcpy(card->shortname, "DICE");
103 BUILD_BUG_ON(NICK_NAME_SIZE < sizeof(card->shortname));
104 err = snd_dice_transaction_read_global(dice, GLOBAL_NICK_NAME,
105 card->shortname,
106 sizeof(card->shortname));
107 if (err >= 0) {
108
109 BUILD_BUG_ON(sizeof(card->shortname) % 4 != 0);
110 for (i = 0; i < sizeof(card->shortname); i += 4)
111 swab32s((u32 *)&card->shortname[i]);
112 card->shortname[sizeof(card->shortname) - 1] = '\0';
113 }
114
115 strcpy(vendor, "?");
116 fw_csr_string(dev->config_rom + 5, CSR_VENDOR, vendor, sizeof(vendor));
117 strcpy(model, "?");
118 fw_csr_string(dice->unit->directory, CSR_MODEL, model, sizeof(model));
119 snprintf(card->longname, sizeof(card->longname),
120 "%s %s (serial %u) at %s, S%d",
121 vendor, model, dev->config_rom[4] & 0x3fffff,
122 dev_name(&dice->unit->device), 100 << dev->max_speed);
123
124 strcpy(card->mixername, "DICE");
125}
126
127static void dice_card_free(struct snd_card *card)
128{
129 struct snd_dice *dice = card->private_data;
130
131 snd_dice_stream_destroy_duplex(dice);
132 snd_dice_transaction_destroy(dice);
133}
134
135static void do_registration(struct work_struct *work)
136{
137 struct snd_dice *dice = container_of(work, struct snd_dice, dwork.work);
138 int err;
139
140 if (dice->registered)
141 return;
142
143 err = snd_card_new(&dice->unit->device, -1, NULL, THIS_MODULE, 0,
144 &dice->card);
145 if (err < 0)
146 return;
147 dice->card->private_free = dice_card_free;
148 dice->card->private_data = dice;
149
150 err = snd_dice_transaction_init(dice);
151 if (err < 0)
152 goto error;
153
154 err = check_clock_caps(dice);
155 if (err < 0)
156 goto error;
157
158 dice_card_strings(dice);
159
160 err = dice->detect_formats(dice);
161 if (err < 0)
162 goto error;
163
164 err = snd_dice_stream_init_duplex(dice);
165 if (err < 0)
166 goto error;
167
168 snd_dice_create_proc(dice);
169
170 err = snd_dice_create_pcm(dice);
171 if (err < 0)
172 goto error;
173
174 err = snd_dice_create_midi(dice);
175 if (err < 0)
176 goto error;
177
178 err = snd_dice_create_hwdep(dice);
179 if (err < 0)
180 goto error;
181
182 err = snd_card_register(dice->card);
183 if (err < 0)
184 goto error;
185
186 dice->registered = true;
187
188 return;
189error:
190 snd_card_free(dice->card);
191 dev_info(&dice->unit->device,
192 "Sound card registration failed: %d\n", err);
193}
194
195static int dice_probe(struct fw_unit *unit,
196 const struct ieee1394_device_id *entry)
197{
198 struct snd_dice *dice;
199 int err;
200
201 if (!entry->driver_data && entry->vendor_id != OUI_SSL) {
202 err = check_dice_category(unit);
203 if (err < 0)
204 return -ENODEV;
205 }
206
207
208 dice = devm_kzalloc(&unit->device, sizeof(struct snd_dice), GFP_KERNEL);
209 if (!dice)
210 return -ENOMEM;
211 dice->unit = fw_unit_get(unit);
212 dev_set_drvdata(&unit->device, dice);
213
214 if (!entry->driver_data) {
215 dice->detect_formats = snd_dice_stream_detect_current_formats;
216 } else {
217 dice->detect_formats =
218 (snd_dice_detect_formats_t)entry->driver_data;
219 }
220
221 spin_lock_init(&dice->lock);
222 mutex_init(&dice->mutex);
223 init_completion(&dice->clock_accepted);
224 init_waitqueue_head(&dice->hwdep_wait);
225
226
227 INIT_DEFERRABLE_WORK(&dice->dwork, do_registration);
228 snd_fw_schedule_registration(unit, &dice->dwork);
229
230 return 0;
231}
232
233static void dice_remove(struct fw_unit *unit)
234{
235 struct snd_dice *dice = dev_get_drvdata(&unit->device);
236
237
238
239
240
241
242 cancel_delayed_work_sync(&dice->dwork);
243
244 if (dice->registered) {
245
246 snd_card_free(dice->card);
247 }
248
249 mutex_destroy(&dice->mutex);
250 fw_unit_put(dice->unit);
251}
252
253static void dice_bus_reset(struct fw_unit *unit)
254{
255 struct snd_dice *dice = dev_get_drvdata(&unit->device);
256
257
258 if (!dice->registered)
259 snd_fw_schedule_registration(unit, &dice->dwork);
260
261
262 snd_dice_transaction_reinit(dice);
263
264
265
266
267
268 if (dice->registered) {
269 mutex_lock(&dice->mutex);
270 snd_dice_stream_update_duplex(dice);
271 mutex_unlock(&dice->mutex);
272 }
273}
274
275#define DICE_INTERFACE 0x000001
276
277static const struct ieee1394_device_id dice_id_table[] = {
278
279 {
280 .match_flags = IEEE1394_MATCH_VENDOR_ID |
281 IEEE1394_MATCH_MODEL_ID,
282 .vendor_id = OUI_MAUDIO,
283 .model_id = 0x000010,
284 .driver_data = (kernel_ulong_t)snd_dice_detect_extension_formats,
285 },
286
287 {
288 .match_flags = IEEE1394_MATCH_VENDOR_ID |
289 IEEE1394_MATCH_MODEL_ID,
290 .vendor_id = OUI_MAUDIO,
291 .model_id = 0x000011,
292 .driver_data = (kernel_ulong_t)snd_dice_detect_extension_formats,
293 },
294
295 {
296 .match_flags = IEEE1394_MATCH_VENDOR_ID |
297 IEEE1394_MATCH_MODEL_ID,
298 .vendor_id = OUI_TCELECTRONIC,
299 .model_id = 0x000020,
300 .driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
301 },
302
303 {
304 .match_flags = IEEE1394_MATCH_VENDOR_ID |
305 IEEE1394_MATCH_MODEL_ID,
306 .vendor_id = OUI_TCELECTRONIC,
307 .model_id = 0x000021,
308 .driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
309 },
310
311 {
312 .match_flags = IEEE1394_MATCH_VENDOR_ID |
313 IEEE1394_MATCH_MODEL_ID,
314 .vendor_id = OUI_TCELECTRONIC,
315 .model_id = 0x000022,
316 .driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
317 },
318
319 {
320 .match_flags = IEEE1394_MATCH_VENDOR_ID |
321 IEEE1394_MATCH_MODEL_ID,
322 .vendor_id = OUI_TCELECTRONIC,
323 .model_id = 0x000023,
324 .driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
325 },
326
327 {
328 .match_flags = IEEE1394_MATCH_VENDOR_ID |
329 IEEE1394_MATCH_MODEL_ID,
330 .vendor_id = OUI_TCELECTRONIC,
331 .model_id = 0x000024,
332 .driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
333 },
334
335 {
336 .match_flags = IEEE1394_MATCH_VENDOR_ID |
337 IEEE1394_MATCH_MODEL_ID,
338 .vendor_id = OUI_TCELECTRONIC,
339 .model_id = 0x000027,
340 .driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
341 },
342
343 {
344 .match_flags = IEEE1394_MATCH_VENDOR_ID |
345 IEEE1394_MATCH_MODEL_ID,
346 .vendor_id = OUI_TCELECTRONIC,
347 .model_id = 0x000030,
348 .driver_data = (kernel_ulong_t)snd_dice_detect_tcelectronic_formats,
349 },
350
351 {
352 .match_flags = IEEE1394_MATCH_VENDOR_ID |
353 IEEE1394_MATCH_MODEL_ID,
354 .vendor_id = OUI_ALESIS,
355 .model_id = MODEL_ALESIS_IO_BOTH,
356 .driver_data = (kernel_ulong_t)snd_dice_detect_alesis_formats,
357 },
358
359 {
360 .match_flags = IEEE1394_MATCH_VENDOR_ID |
361 IEEE1394_MATCH_MODEL_ID,
362 .vendor_id = OUI_MYTEK,
363 .model_id = 0x000002,
364 .driver_data = (kernel_ulong_t)snd_dice_detect_mytek_formats,
365 },
366
367
368
369 {
370 .match_flags = IEEE1394_MATCH_VENDOR_ID |
371 IEEE1394_MATCH_MODEL_ID,
372 .vendor_id = OUI_SSL,
373 .model_id = 0x000070,
374 },
375
376 {
377 .match_flags = IEEE1394_MATCH_VENDOR_ID |
378 IEEE1394_MATCH_MODEL_ID,
379 .vendor_id = OUI_PRESONUS,
380 .model_id = 0x000008,
381 .driver_data = (kernel_ulong_t)snd_dice_detect_presonus_formats,
382 },
383 {
384 .match_flags = IEEE1394_MATCH_VERSION,
385 .version = DICE_INTERFACE,
386 },
387 { }
388};
389MODULE_DEVICE_TABLE(ieee1394, dice_id_table);
390
391static struct fw_driver dice_driver = {
392 .driver = {
393 .owner = THIS_MODULE,
394 .name = KBUILD_MODNAME,
395 .bus = &fw_bus_type,
396 },
397 .probe = dice_probe,
398 .update = dice_bus_reset,
399 .remove = dice_remove,
400 .id_table = dice_id_table,
401};
402
403static int __init alsa_dice_init(void)
404{
405 return driver_register(&dice_driver.driver);
406}
407
408static void __exit alsa_dice_exit(void)
409{
410 driver_unregister(&dice_driver.driver);
411}
412
413module_init(alsa_dice_init);
414module_exit(alsa_dice_exit);
415
