Commit | Line | Data |
---|---|---|
82fbb4f7 CL |
1 | /* |
2 | * TC Applied Technologies Digital Interface Communications Engine driver | |
3 | * | |
4 | * Copyright (c) Clemens Ladisch <clemens@ladisch.de> | |
5 | * Licensed under the terms of the GNU General Public License, version 2. | |
6 | */ | |
7 | ||
0c29c918 | 8 | #include <linux/compat.h> |
15a75c8b | 9 | #include <linux/completion.h> |
82fbb4f7 CL |
10 | #include <linux/delay.h> |
11 | #include <linux/device.h> | |
12 | #include <linux/firewire.h> | |
13 | #include <linux/firewire-constants.h> | |
15a75c8b | 14 | #include <linux/jiffies.h> |
82fbb4f7 CL |
15 | #include <linux/module.h> |
16 | #include <linux/mod_devicetable.h> | |
17 | #include <linux/mutex.h> | |
18 | #include <linux/slab.h> | |
0c29c918 CL |
19 | #include <linux/spinlock.h> |
20 | #include <linux/wait.h> | |
82fbb4f7 CL |
21 | #include <sound/control.h> |
22 | #include <sound/core.h> | |
0c29c918 | 23 | #include <sound/firewire.h> |
82fbb4f7 | 24 | #include <sound/hwdep.h> |
c614475b | 25 | #include <sound/info.h> |
82fbb4f7 CL |
26 | #include <sound/initval.h> |
27 | #include <sound/pcm.h> | |
28 | #include <sound/pcm_params.h> | |
29 | #include "amdtp.h" | |
30 | #include "iso-resources.h" | |
31 | #include "lib.h" | |
54e72f0b | 32 | #include "dice-interface.h" |
82fbb4f7 CL |
33 | |
34 | ||
35 | struct dice { | |
36 | struct snd_card *card; | |
37 | struct fw_unit *unit; | |
0c29c918 | 38 | spinlock_t lock; |
82fbb4f7 CL |
39 | struct mutex mutex; |
40 | unsigned int global_offset; | |
41 | unsigned int rx_offset; | |
a0301998 | 42 | unsigned int clock_caps; |
15a75c8b CL |
43 | unsigned int rx_channels[3]; |
44 | unsigned int rx_midi_ports[3]; | |
82fbb4f7 CL |
45 | struct fw_address_handler notification_handler; |
46 | int owner_generation; | |
0c29c918 CL |
47 | int dev_lock_count; /* > 0 driver, < 0 userspace */ |
48 | bool dev_lock_changed; | |
82fbb4f7 | 49 | bool global_enabled; |
15a75c8b | 50 | struct completion clock_accepted; |
0c29c918 CL |
51 | wait_queue_head_t hwdep_wait; |
52 | u32 notification_bits; | |
82fbb4f7 | 53 | struct fw_iso_resources resources; |
be4a2894 | 54 | struct amdtp_stream stream; |
82fbb4f7 CL |
55 | }; |
56 | ||
57 | MODULE_DESCRIPTION("DICE driver"); | |
58 | MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); | |
59 | MODULE_LICENSE("GPL v2"); | |
60 | ||
341682cd | 61 | static const unsigned int dice_rates[] = { |
15a75c8b | 62 | /* mode 0 */ |
341682cd CL |
63 | [0] = 32000, |
64 | [1] = 44100, | |
65 | [2] = 48000, | |
15a75c8b | 66 | /* mode 1 */ |
341682cd CL |
67 | [3] = 88200, |
68 | [4] = 96000, | |
15a75c8b | 69 | /* mode 2 */ |
341682cd CL |
70 | [5] = 176400, |
71 | [6] = 192000, | |
72 | }; | |
73 | ||
4edeb831 CL |
74 | static unsigned int rate_to_index(unsigned int rate) |
75 | { | |
76 | unsigned int i; | |
77 | ||
78 | for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) | |
79 | if (dice_rates[i] == rate) | |
80 | return i; | |
81 | ||
82 | return 0; | |
83 | } | |
84 | ||
15a75c8b CL |
85 | static unsigned int rate_index_to_mode(unsigned int rate_index) |
86 | { | |
87 | return ((int)rate_index - 1) / 2; | |
88 | } | |
89 | ||
0c29c918 CL |
90 | static void dice_lock_changed(struct dice *dice) |
91 | { | |
92 | dice->dev_lock_changed = true; | |
93 | wake_up(&dice->hwdep_wait); | |
94 | } | |
95 | ||
96 | static int dice_try_lock(struct dice *dice) | |
97 | { | |
98 | int err; | |
99 | ||
100 | spin_lock_irq(&dice->lock); | |
101 | ||
102 | if (dice->dev_lock_count < 0) { | |
103 | err = -EBUSY; | |
104 | goto out; | |
105 | } | |
106 | ||
107 | if (dice->dev_lock_count++ == 0) | |
108 | dice_lock_changed(dice); | |
109 | err = 0; | |
110 | ||
111 | out: | |
112 | spin_unlock_irq(&dice->lock); | |
113 | ||
114 | return err; | |
115 | } | |
116 | ||
117 | static void dice_unlock(struct dice *dice) | |
118 | { | |
119 | spin_lock_irq(&dice->lock); | |
120 | ||
121 | if (WARN_ON(dice->dev_lock_count <= 0)) | |
122 | goto out; | |
123 | ||
124 | if (--dice->dev_lock_count == 0) | |
125 | dice_lock_changed(dice); | |
126 | ||
127 | out: | |
128 | spin_unlock_irq(&dice->lock); | |
129 | } | |
130 | ||
82fbb4f7 CL |
131 | static inline u64 global_address(struct dice *dice, unsigned int offset) |
132 | { | |
133 | return DICE_PRIVATE_SPACE + dice->global_offset + offset; | |
134 | } | |
135 | ||
136 | // TODO: rx index | |
137 | static inline u64 rx_address(struct dice *dice, unsigned int offset) | |
138 | { | |
139 | return DICE_PRIVATE_SPACE + dice->rx_offset + offset; | |
140 | } | |
141 | ||
142 | static int dice_owner_set(struct dice *dice) | |
143 | { | |
144 | struct fw_device *device = fw_parent_device(dice->unit); | |
145 | __be64 *buffer; | |
1b70485f | 146 | int err, errors = 0; |
82fbb4f7 CL |
147 | |
148 | buffer = kmalloc(2 * 8, GFP_KERNEL); | |
149 | if (!buffer) | |
150 | return -ENOMEM; | |
151 | ||
152 | for (;;) { | |
153 | buffer[0] = cpu_to_be64(OWNER_NO_OWNER); | |
154 | buffer[1] = cpu_to_be64( | |
155 | ((u64)device->card->node_id << OWNER_NODE_SHIFT) | | |
156 | dice->notification_handler.offset); | |
157 | ||
158 | dice->owner_generation = device->generation; | |
159 | smp_rmb(); /* node_id vs. generation */ | |
1b70485f CL |
160 | err = snd_fw_transaction(dice->unit, |
161 | TCODE_LOCK_COMPARE_SWAP, | |
162 | global_address(dice, GLOBAL_OWNER), | |
163 | buffer, 2 * 8, | |
164 | FW_FIXED_GENERATION | | |
165 | dice->owner_generation); | |
166 | ||
167 | if (err == 0) { | |
168 | if (buffer[0] != cpu_to_be64(OWNER_NO_OWNER)) { | |
82fbb4f7 CL |
169 | dev_err(&dice->unit->device, |
170 | "device is already in use\n"); | |
171 | err = -EBUSY; | |
172 | } | |
173 | break; | |
174 | } | |
1b70485f | 175 | if (err != -EAGAIN || ++errors >= 3) |
82fbb4f7 | 176 | break; |
1b70485f | 177 | |
82fbb4f7 CL |
178 | msleep(20); |
179 | } | |
180 | ||
181 | kfree(buffer); | |
182 | ||
183 | return err; | |
184 | } | |
185 | ||
186 | static int dice_owner_update(struct dice *dice) | |
187 | { | |
188 | struct fw_device *device = fw_parent_device(dice->unit); | |
189 | __be64 *buffer; | |
1b70485f | 190 | int err; |
82fbb4f7 CL |
191 | |
192 | if (dice->owner_generation == -1) | |
193 | return 0; | |
194 | ||
195 | buffer = kmalloc(2 * 8, GFP_KERNEL); | |
196 | if (!buffer) | |
197 | return -ENOMEM; | |
198 | ||
1b70485f CL |
199 | buffer[0] = cpu_to_be64(OWNER_NO_OWNER); |
200 | buffer[1] = cpu_to_be64( | |
201 | ((u64)device->card->node_id << OWNER_NODE_SHIFT) | | |
202 | dice->notification_handler.offset); | |
82fbb4f7 | 203 | |
1b70485f CL |
204 | dice->owner_generation = device->generation; |
205 | smp_rmb(); /* node_id vs. generation */ | |
206 | err = snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP, | |
207 | global_address(dice, GLOBAL_OWNER), | |
208 | buffer, 2 * 8, | |
209 | FW_FIXED_GENERATION | dice->owner_generation); | |
210 | ||
211 | if (err == 0) { | |
212 | if (buffer[0] != cpu_to_be64(OWNER_NO_OWNER)) { | |
82fbb4f7 | 213 | dev_err(&dice->unit->device, |
1b70485f CL |
214 | "device is already in use\n"); |
215 | err = -EBUSY; | |
82fbb4f7 | 216 | } |
1b70485f CL |
217 | } else if (err == -EAGAIN) { |
218 | err = 0; /* try again later */ | |
82fbb4f7 CL |
219 | } |
220 | ||
221 | kfree(buffer); | |
222 | ||
223 | if (err < 0) | |
224 | dice->owner_generation = -1; | |
225 | ||
226 | return err; | |
227 | } | |
228 | ||
229 | static void dice_owner_clear(struct dice *dice) | |
230 | { | |
231 | struct fw_device *device = fw_parent_device(dice->unit); | |
232 | __be64 *buffer; | |
82fbb4f7 CL |
233 | |
234 | buffer = kmalloc(2 * 8, GFP_KERNEL); | |
235 | if (!buffer) | |
236 | return; | |
237 | ||
1b70485f CL |
238 | buffer[0] = cpu_to_be64( |
239 | ((u64)device->card->node_id << OWNER_NODE_SHIFT) | | |
240 | dice->notification_handler.offset); | |
241 | buffer[1] = cpu_to_be64(OWNER_NO_OWNER); | |
242 | snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP, | |
243 | global_address(dice, GLOBAL_OWNER), | |
244 | buffer, 2 * 8, FW_QUIET | | |
245 | FW_FIXED_GENERATION | dice->owner_generation); | |
82fbb4f7 CL |
246 | |
247 | kfree(buffer); | |
248 | ||
249 | dice->owner_generation = -1; | |
250 | } | |
251 | ||
252 | static int dice_enable_set(struct dice *dice) | |
253 | { | |
82fbb4f7 | 254 | __be32 value; |
1b70485f | 255 | int err; |
82fbb4f7 | 256 | |
54e72f0b | 257 | value = cpu_to_be32(1); |
1b70485f CL |
258 | err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, |
259 | global_address(dice, GLOBAL_ENABLE), | |
260 | &value, 4, | |
261 | FW_FIXED_GENERATION | dice->owner_generation); | |
262 | if (err < 0) | |
263 | return err; | |
82fbb4f7 | 264 | |
1b70485f CL |
265 | dice->global_enabled = true; |
266 | ||
267 | return 0; | |
82fbb4f7 CL |
268 | } |
269 | ||
270 | static void dice_enable_clear(struct dice *dice) | |
271 | { | |
82fbb4f7 | 272 | __be32 value; |
82fbb4f7 | 273 | |
eadce07f CL |
274 | if (!dice->global_enabled) |
275 | return; | |
276 | ||
82fbb4f7 | 277 | value = 0; |
1b70485f CL |
278 | snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, |
279 | global_address(dice, GLOBAL_ENABLE), | |
280 | &value, 4, FW_QUIET | | |
281 | FW_FIXED_GENERATION | dice->owner_generation); | |
282 | ||
82fbb4f7 CL |
283 | dice->global_enabled = false; |
284 | } | |
285 | ||
286 | static void dice_notification(struct fw_card *card, struct fw_request *request, | |
287 | int tcode, int destination, int source, | |
288 | int generation, unsigned long long offset, | |
289 | void *data, size_t length, void *callback_data) | |
290 | { | |
291 | struct dice *dice = callback_data; | |
15a75c8b | 292 | u32 bits; |
0c29c918 | 293 | unsigned long flags; |
82fbb4f7 CL |
294 | |
295 | if (tcode != TCODE_WRITE_QUADLET_REQUEST) { | |
296 | fw_send_response(card, request, RCODE_TYPE_ERROR); | |
297 | return; | |
298 | } | |
299 | if ((offset & 3) != 0) { | |
300 | fw_send_response(card, request, RCODE_ADDRESS_ERROR); | |
301 | return; | |
302 | } | |
15a75c8b CL |
303 | |
304 | bits = be32_to_cpup(data); | |
305 | ||
0c29c918 | 306 | spin_lock_irqsave(&dice->lock, flags); |
15a75c8b | 307 | dice->notification_bits |= bits; |
0c29c918 | 308 | spin_unlock_irqrestore(&dice->lock, flags); |
15a75c8b | 309 | |
82fbb4f7 | 310 | fw_send_response(card, request, RCODE_COMPLETE); |
15a75c8b CL |
311 | |
312 | if (bits & NOTIFY_CLOCK_ACCEPTED) | |
313 | complete(&dice->clock_accepted); | |
0c29c918 | 314 | wake_up(&dice->hwdep_wait); |
82fbb4f7 CL |
315 | } |
316 | ||
4edeb831 CL |
317 | static int dice_rate_constraint(struct snd_pcm_hw_params *params, |
318 | struct snd_pcm_hw_rule *rule) | |
319 | { | |
320 | struct dice *dice = rule->private; | |
321 | const struct snd_interval *channels = | |
322 | hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
323 | struct snd_interval *rate = | |
324 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); | |
325 | struct snd_interval allowed_rates = { | |
326 | .min = UINT_MAX, .max = 0, .integer = 1 | |
327 | }; | |
328 | unsigned int i, mode; | |
329 | ||
330 | for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) { | |
331 | mode = rate_index_to_mode(i); | |
332 | if ((dice->clock_caps & (1 << i)) && | |
333 | snd_interval_test(channels, dice->rx_channels[mode])) { | |
334 | allowed_rates.min = min(allowed_rates.min, | |
335 | dice_rates[i]); | |
336 | allowed_rates.max = max(allowed_rates.max, | |
337 | dice_rates[i]); | |
338 | } | |
339 | } | |
340 | ||
341 | return snd_interval_refine(rate, &allowed_rates); | |
342 | } | |
343 | ||
344 | static int dice_channels_constraint(struct snd_pcm_hw_params *params, | |
345 | struct snd_pcm_hw_rule *rule) | |
346 | { | |
347 | struct dice *dice = rule->private; | |
348 | const struct snd_interval *rate = | |
349 | hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); | |
350 | struct snd_interval *channels = | |
351 | hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
352 | struct snd_interval allowed_channels = { | |
353 | .min = UINT_MAX, .max = 0, .integer = 1 | |
354 | }; | |
355 | unsigned int i, mode; | |
356 | ||
357 | for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) | |
358 | if ((dice->clock_caps & (1 << i)) && | |
359 | snd_interval_test(rate, dice_rates[i])) { | |
360 | mode = rate_index_to_mode(i); | |
361 | allowed_channels.min = min(allowed_channels.min, | |
362 | dice->rx_channels[mode]); | |
363 | allowed_channels.max = max(allowed_channels.max, | |
364 | dice->rx_channels[mode]); | |
365 | } | |
366 | ||
367 | return snd_interval_refine(channels, &allowed_channels); | |
368 | } | |
369 | ||
82fbb4f7 CL |
370 | static int dice_open(struct snd_pcm_substream *substream) |
371 | { | |
372 | static const struct snd_pcm_hardware hardware = { | |
373 | .info = SNDRV_PCM_INFO_MMAP | | |
374 | SNDRV_PCM_INFO_MMAP_VALID | | |
375 | SNDRV_PCM_INFO_BATCH | | |
376 | SNDRV_PCM_INFO_INTERLEAVED | | |
377 | SNDRV_PCM_INFO_BLOCK_TRANSFER, | |
378 | .formats = AMDTP_OUT_PCM_FORMAT_BITS, | |
4edeb831 CL |
379 | .channels_min = UINT_MAX, |
380 | .channels_max = 0, | |
82fbb4f7 CL |
381 | .buffer_bytes_max = 16 * 1024 * 1024, |
382 | .period_bytes_min = 1, | |
383 | .period_bytes_max = UINT_MAX, | |
384 | .periods_min = 1, | |
385 | .periods_max = UINT_MAX, | |
386 | }; | |
387 | struct dice *dice = substream->private_data; | |
388 | struct snd_pcm_runtime *runtime = substream->runtime; | |
4edeb831 | 389 | unsigned int i; |
82fbb4f7 CL |
390 | int err; |
391 | ||
0c29c918 CL |
392 | err = dice_try_lock(dice); |
393 | if (err < 0) | |
394 | goto error; | |
395 | ||
82fbb4f7 | 396 | runtime->hw = hardware; |
341682cd | 397 | |
4edeb831 CL |
398 | for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) |
399 | if (dice->clock_caps & (1 << i)) | |
400 | runtime->hw.rates |= | |
401 | snd_pcm_rate_to_rate_bit(dice_rates[i]); | |
341682cd CL |
402 | snd_pcm_limit_hw_rates(runtime); |
403 | ||
4edeb831 CL |
404 | for (i = 0; i < 3; ++i) |
405 | if (dice->rx_channels[i]) { | |
406 | runtime->hw.channels_min = min(runtime->hw.channels_min, | |
407 | dice->rx_channels[i]); | |
408 | runtime->hw.channels_max = max(runtime->hw.channels_max, | |
409 | dice->rx_channels[i]); | |
410 | } | |
82fbb4f7 | 411 | |
4edeb831 CL |
412 | err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, |
413 | dice_rate_constraint, dice, | |
414 | SNDRV_PCM_HW_PARAM_CHANNELS, -1); | |
415 | if (err < 0) | |
416 | goto err_lock; | |
417 | err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, | |
418 | dice_channels_constraint, dice, | |
419 | SNDRV_PCM_HW_PARAM_RATE, -1); | |
420 | if (err < 0) | |
421 | goto err_lock; | |
a7304e3b CL |
422 | |
423 | err = snd_pcm_hw_constraint_step(runtime, 0, | |
4edeb831 | 424 | SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 32); |
a7304e3b CL |
425 | if (err < 0) |
426 | goto err_lock; | |
427 | err = snd_pcm_hw_constraint_step(runtime, 0, | |
4edeb831 | 428 | SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); |
a7304e3b CL |
429 | if (err < 0) |
430 | goto err_lock; | |
82fbb4f7 CL |
431 | |
432 | err = snd_pcm_hw_constraint_minmax(runtime, | |
433 | SNDRV_PCM_HW_PARAM_PERIOD_TIME, | |
435a9be8 | 434 | 5000, UINT_MAX); |
82fbb4f7 | 435 | if (err < 0) |
0c29c918 | 436 | goto err_lock; |
82fbb4f7 CL |
437 | |
438 | err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24); | |
439 | if (err < 0) | |
0c29c918 | 440 | goto err_lock; |
82fbb4f7 CL |
441 | |
442 | return 0; | |
0c29c918 CL |
443 | |
444 | err_lock: | |
445 | dice_unlock(dice); | |
446 | error: | |
447 | return err; | |
82fbb4f7 CL |
448 | } |
449 | ||
450 | static int dice_close(struct snd_pcm_substream *substream) | |
451 | { | |
0c29c918 CL |
452 | struct dice *dice = substream->private_data; |
453 | ||
454 | dice_unlock(dice); | |
455 | ||
82fbb4f7 CL |
456 | return 0; |
457 | } | |
458 | ||
6abce9e6 | 459 | static int dice_stream_start_packets(struct dice *dice) |
82fbb4f7 | 460 | { |
6abce9e6 CL |
461 | int err; |
462 | ||
be4a2894 | 463 | if (amdtp_stream_running(&dice->stream)) |
6abce9e6 | 464 | return 0; |
82fbb4f7 | 465 | |
be4a2894 TS |
466 | err = amdtp_stream_start(&dice->stream, dice->resources.channel, |
467 | fw_parent_device(dice->unit)->max_speed); | |
6abce9e6 CL |
468 | if (err < 0) |
469 | return err; | |
82fbb4f7 | 470 | |
6abce9e6 CL |
471 | err = dice_enable_set(dice); |
472 | if (err < 0) { | |
be4a2894 | 473 | amdtp_stream_stop(&dice->stream); |
6abce9e6 CL |
474 | return err; |
475 | } | |
82fbb4f7 | 476 | |
6abce9e6 CL |
477 | return 0; |
478 | } | |
82fbb4f7 | 479 | |
6abce9e6 CL |
480 | static int dice_stream_start(struct dice *dice) |
481 | { | |
482 | __be32 channel; | |
483 | int err; | |
484 | ||
485 | if (!dice->resources.allocated) { | |
486 | err = fw_iso_resources_allocate(&dice->resources, | |
be4a2894 | 487 | amdtp_stream_get_max_payload(&dice->stream), |
6abce9e6 CL |
488 | fw_parent_device(dice->unit)->max_speed); |
489 | if (err < 0) | |
490 | goto error; | |
491 | ||
492 | channel = cpu_to_be32(dice->resources.channel); | |
493 | err = snd_fw_transaction(dice->unit, | |
494 | TCODE_WRITE_QUADLET_REQUEST, | |
495 | rx_address(dice, RX_ISOCHRONOUS), | |
1b70485f | 496 | &channel, 4, 0); |
6abce9e6 CL |
497 | if (err < 0) |
498 | goto err_resources; | |
82fbb4f7 | 499 | } |
6abce9e6 CL |
500 | |
501 | err = dice_stream_start_packets(dice); | |
502 | if (err < 0) | |
503 | goto err_rx_channel; | |
504 | ||
505 | return 0; | |
506 | ||
507 | err_rx_channel: | |
508 | channel = cpu_to_be32((u32)-1); | |
509 | snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, | |
1b70485f | 510 | rx_address(dice, RX_ISOCHRONOUS), &channel, 4, 0); |
6abce9e6 CL |
511 | err_resources: |
512 | fw_iso_resources_free(&dice->resources); | |
513 | error: | |
514 | return err; | |
515 | } | |
516 | ||
517 | static void dice_stream_stop_packets(struct dice *dice) | |
518 | { | |
be4a2894 | 519 | if (amdtp_stream_running(&dice->stream)) { |
20b65dd0 | 520 | dice_enable_clear(dice); |
be4a2894 | 521 | amdtp_stream_stop(&dice->stream); |
20b65dd0 | 522 | } |
6abce9e6 CL |
523 | } |
524 | ||
525 | static void dice_stream_stop(struct dice *dice) | |
526 | { | |
527 | __be32 channel; | |
528 | ||
529 | dice_stream_stop_packets(dice); | |
530 | ||
531 | if (!dice->resources.allocated) | |
532 | return; | |
533 | ||
534 | channel = cpu_to_be32((u32)-1); | |
535 | snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, | |
1b70485f | 536 | rx_address(dice, RX_ISOCHRONOUS), &channel, 4, 0); |
6abce9e6 CL |
537 | |
538 | fw_iso_resources_free(&dice->resources); | |
82fbb4f7 CL |
539 | } |
540 | ||
15a75c8b CL |
541 | static int dice_change_rate(struct dice *dice, unsigned int clock_rate) |
542 | { | |
543 | __be32 value; | |
544 | int err; | |
545 | ||
16735d02 | 546 | reinit_completion(&dice->clock_accepted); |
15a75c8b CL |
547 | |
548 | value = cpu_to_be32(clock_rate | CLOCK_SOURCE_ARX1); | |
549 | err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, | |
550 | global_address(dice, GLOBAL_CLOCK_SELECT), | |
551 | &value, 4, 0); | |
552 | if (err < 0) | |
553 | return err; | |
554 | ||
640d9b42 CL |
555 | if (!wait_for_completion_timeout(&dice->clock_accepted, |
556 | msecs_to_jiffies(100))) | |
557 | dev_warn(&dice->unit->device, "clock change timed out\n"); | |
15a75c8b CL |
558 | |
559 | return 0; | |
560 | } | |
561 | ||
82fbb4f7 CL |
562 | static int dice_hw_params(struct snd_pcm_substream *substream, |
563 | struct snd_pcm_hw_params *hw_params) | |
564 | { | |
565 | struct dice *dice = substream->private_data; | |
10550bea | 566 | unsigned int rate_index, mode, rate, channels, i; |
82fbb4f7 CL |
567 | int err; |
568 | ||
569 | mutex_lock(&dice->mutex); | |
6abce9e6 | 570 | dice_stream_stop(dice); |
82fbb4f7 CL |
571 | mutex_unlock(&dice->mutex); |
572 | ||
573 | err = snd_pcm_lib_alloc_vmalloc_buffer(substream, | |
574 | params_buffer_bytes(hw_params)); | |
575 | if (err < 0) | |
4edeb831 CL |
576 | return err; |
577 | ||
10550bea TS |
578 | rate = params_rate(hw_params); |
579 | rate_index = rate_to_index(rate); | |
4edeb831 CL |
580 | err = dice_change_rate(dice, rate_index << CLOCK_RATE_SHIFT); |
581 | if (err < 0) | |
582 | return err; | |
82fbb4f7 | 583 | |
10550bea TS |
584 | /* |
585 | * At rates above 96 kHz, pretend that the stream runs at half the | |
586 | * actual sample rate with twice the number of channels; two samples | |
587 | * of a channel are stored consecutively in the packet. Requires | |
588 | * blocking mode and PCM buffer size should be aligned to SYT_INTERVAL. | |
589 | */ | |
590 | channels = params_channels(hw_params); | |
591 | if (rate_index > 4) { | |
592 | if (channels > AMDTP_MAX_CHANNELS_FOR_PCM / 2) { | |
593 | err = -ENOSYS; | |
594 | return err; | |
595 | } | |
596 | ||
597 | for (i = 0; i < channels; i++) { | |
598 | dice->stream.pcm_positions[i * 2] = i; | |
599 | dice->stream.pcm_positions[i * 2 + 1] = i + channels; | |
600 | } | |
601 | ||
602 | rate /= 2; | |
603 | channels *= 2; | |
604 | } | |
605 | ||
4edeb831 | 606 | mode = rate_index_to_mode(rate_index); |
10550bea | 607 | amdtp_stream_set_parameters(&dice->stream, rate, channels, |
be4a2894 TS |
608 | dice->rx_midi_ports[mode]); |
609 | amdtp_stream_set_pcm_format(&dice->stream, | |
610 | params_format(hw_params)); | |
82fbb4f7 CL |
611 | |
612 | return 0; | |
82fbb4f7 CL |
613 | } |
614 | ||
615 | static int dice_hw_free(struct snd_pcm_substream *substream) | |
616 | { | |
617 | struct dice *dice = substream->private_data; | |
618 | ||
619 | mutex_lock(&dice->mutex); | |
6abce9e6 | 620 | dice_stream_stop(dice); |
82fbb4f7 CL |
621 | mutex_unlock(&dice->mutex); |
622 | ||
623 | return snd_pcm_lib_free_vmalloc_buffer(substream); | |
624 | } | |
625 | ||
626 | static int dice_prepare(struct snd_pcm_substream *substream) | |
627 | { | |
628 | struct dice *dice = substream->private_data; | |
82fbb4f7 CL |
629 | int err; |
630 | ||
631 | mutex_lock(&dice->mutex); | |
632 | ||
be4a2894 | 633 | if (amdtp_streaming_error(&dice->stream)) |
6abce9e6 | 634 | dice_stream_stop_packets(dice); |
82fbb4f7 | 635 | |
6abce9e6 CL |
636 | err = dice_stream_start(dice); |
637 | if (err < 0) { | |
638 | mutex_unlock(&dice->mutex); | |
639 | return err; | |
82fbb4f7 CL |
640 | } |
641 | ||
642 | mutex_unlock(&dice->mutex); | |
643 | ||
be4a2894 | 644 | amdtp_stream_pcm_prepare(&dice->stream); |
82fbb4f7 CL |
645 | |
646 | return 0; | |
82fbb4f7 CL |
647 | } |
648 | ||
649 | static int dice_trigger(struct snd_pcm_substream *substream, int cmd) | |
650 | { | |
651 | struct dice *dice = substream->private_data; | |
652 | struct snd_pcm_substream *pcm; | |
653 | ||
654 | switch (cmd) { | |
655 | case SNDRV_PCM_TRIGGER_START: | |
656 | pcm = substream; | |
657 | break; | |
658 | case SNDRV_PCM_TRIGGER_STOP: | |
659 | pcm = NULL; | |
660 | break; | |
661 | default: | |
662 | return -EINVAL; | |
663 | } | |
be4a2894 | 664 | amdtp_stream_pcm_trigger(&dice->stream, pcm); |
82fbb4f7 CL |
665 | |
666 | return 0; | |
667 | } | |
668 | ||
669 | static snd_pcm_uframes_t dice_pointer(struct snd_pcm_substream *substream) | |
670 | { | |
671 | struct dice *dice = substream->private_data; | |
672 | ||
be4a2894 | 673 | return amdtp_stream_pcm_pointer(&dice->stream); |
82fbb4f7 CL |
674 | } |
675 | ||
676 | static int dice_create_pcm(struct dice *dice) | |
677 | { | |
678 | static struct snd_pcm_ops ops = { | |
679 | .open = dice_open, | |
680 | .close = dice_close, | |
681 | .ioctl = snd_pcm_lib_ioctl, | |
682 | .hw_params = dice_hw_params, | |
683 | .hw_free = dice_hw_free, | |
684 | .prepare = dice_prepare, | |
685 | .trigger = dice_trigger, | |
686 | .pointer = dice_pointer, | |
687 | .page = snd_pcm_lib_get_vmalloc_page, | |
688 | .mmap = snd_pcm_lib_mmap_vmalloc, | |
689 | }; | |
82fbb4f7 CL |
690 | struct snd_pcm *pcm; |
691 | int err; | |
692 | ||
82fbb4f7 CL |
693 | err = snd_pcm_new(dice->card, "DICE", 0, 1, 0, &pcm); |
694 | if (err < 0) | |
695 | return err; | |
696 | pcm->private_data = dice; | |
697 | strcpy(pcm->name, dice->card->shortname); | |
8709f1e4 | 698 | pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->ops = &ops; |
82fbb4f7 CL |
699 | |
700 | return 0; | |
701 | } | |
702 | ||
82fbb4f7 CL |
703 | static long dice_hwdep_read(struct snd_hwdep *hwdep, char __user *buf, |
704 | long count, loff_t *offset) | |
705 | { | |
0c29c918 CL |
706 | struct dice *dice = hwdep->private_data; |
707 | DEFINE_WAIT(wait); | |
708 | union snd_firewire_event event; | |
709 | ||
710 | spin_lock_irq(&dice->lock); | |
711 | ||
712 | while (!dice->dev_lock_changed && dice->notification_bits == 0) { | |
713 | prepare_to_wait(&dice->hwdep_wait, &wait, TASK_INTERRUPTIBLE); | |
714 | spin_unlock_irq(&dice->lock); | |
715 | schedule(); | |
716 | finish_wait(&dice->hwdep_wait, &wait); | |
717 | if (signal_pending(current)) | |
718 | return -ERESTARTSYS; | |
719 | spin_lock_irq(&dice->lock); | |
720 | } | |
721 | ||
722 | memset(&event, 0, sizeof(event)); | |
723 | if (dice->dev_lock_changed) { | |
724 | event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; | |
725 | event.lock_status.status = dice->dev_lock_count > 0; | |
726 | dice->dev_lock_changed = false; | |
727 | ||
728 | count = min(count, (long)sizeof(event.lock_status)); | |
729 | } else { | |
730 | event.dice_notification.type = SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION; | |
731 | event.dice_notification.notification = dice->notification_bits; | |
732 | dice->notification_bits = 0; | |
733 | ||
734 | count = min(count, (long)sizeof(event.dice_notification)); | |
735 | } | |
736 | ||
737 | spin_unlock_irq(&dice->lock); | |
738 | ||
739 | if (copy_to_user(buf, &event, count)) | |
740 | return -EFAULT; | |
741 | ||
742 | return count; | |
82fbb4f7 CL |
743 | } |
744 | ||
0c29c918 CL |
745 | static unsigned int dice_hwdep_poll(struct snd_hwdep *hwdep, struct file *file, |
746 | poll_table *wait) | |
82fbb4f7 | 747 | { |
0c29c918 CL |
748 | struct dice *dice = hwdep->private_data; |
749 | unsigned int events; | |
750 | ||
751 | poll_wait(file, &dice->hwdep_wait, wait); | |
752 | ||
753 | spin_lock_irq(&dice->lock); | |
754 | if (dice->dev_lock_changed || dice->notification_bits != 0) | |
755 | events = POLLIN | POLLRDNORM; | |
756 | else | |
757 | events = 0; | |
758 | spin_unlock_irq(&dice->lock); | |
759 | ||
760 | return events; | |
82fbb4f7 CL |
761 | } |
762 | ||
0c29c918 | 763 | static int dice_hwdep_get_info(struct dice *dice, void __user *arg) |
82fbb4f7 | 764 | { |
0c29c918 CL |
765 | struct fw_device *dev = fw_parent_device(dice->unit); |
766 | struct snd_firewire_get_info info; | |
767 | ||
768 | memset(&info, 0, sizeof(info)); | |
769 | info.type = SNDRV_FIREWIRE_TYPE_DICE; | |
770 | info.card = dev->card->index; | |
771 | *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]); | |
772 | *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]); | |
773 | strlcpy(info.device_name, dev_name(&dev->device), | |
774 | sizeof(info.device_name)); | |
775 | ||
776 | if (copy_to_user(arg, &info, sizeof(info))) | |
777 | return -EFAULT; | |
778 | ||
82fbb4f7 CL |
779 | return 0; |
780 | } | |
781 | ||
0c29c918 CL |
782 | static int dice_hwdep_lock(struct dice *dice) |
783 | { | |
784 | int err; | |
785 | ||
786 | spin_lock_irq(&dice->lock); | |
787 | ||
788 | if (dice->dev_lock_count == 0) { | |
789 | dice->dev_lock_count = -1; | |
790 | err = 0; | |
791 | } else { | |
792 | err = -EBUSY; | |
793 | } | |
794 | ||
795 | spin_unlock_irq(&dice->lock); | |
796 | ||
797 | return err; | |
798 | } | |
799 | ||
800 | static int dice_hwdep_unlock(struct dice *dice) | |
82fbb4f7 | 801 | { |
0c29c918 CL |
802 | int err; |
803 | ||
804 | spin_lock_irq(&dice->lock); | |
805 | ||
806 | if (dice->dev_lock_count == -1) { | |
807 | dice->dev_lock_count = 0; | |
808 | err = 0; | |
809 | } else { | |
810 | err = -EBADFD; | |
811 | } | |
812 | ||
813 | spin_unlock_irq(&dice->lock); | |
814 | ||
815 | return err; | |
82fbb4f7 CL |
816 | } |
817 | ||
9dd81e31 CL |
818 | static int dice_hwdep_release(struct snd_hwdep *hwdep, struct file *file) |
819 | { | |
820 | struct dice *dice = hwdep->private_data; | |
821 | ||
822 | spin_lock_irq(&dice->lock); | |
823 | if (dice->dev_lock_count == -1) | |
824 | dice->dev_lock_count = 0; | |
825 | spin_unlock_irq(&dice->lock); | |
826 | ||
827 | return 0; | |
828 | } | |
829 | ||
82fbb4f7 CL |
830 | static int dice_hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file, |
831 | unsigned int cmd, unsigned long arg) | |
832 | { | |
0c29c918 CL |
833 | struct dice *dice = hwdep->private_data; |
834 | ||
835 | switch (cmd) { | |
836 | case SNDRV_FIREWIRE_IOCTL_GET_INFO: | |
837 | return dice_hwdep_get_info(dice, (void __user *)arg); | |
838 | case SNDRV_FIREWIRE_IOCTL_LOCK: | |
839 | return dice_hwdep_lock(dice); | |
840 | case SNDRV_FIREWIRE_IOCTL_UNLOCK: | |
841 | return dice_hwdep_unlock(dice); | |
842 | default: | |
843 | return -ENOIOCTLCMD; | |
844 | } | |
845 | } | |
846 | ||
847 | #ifdef CONFIG_COMPAT | |
848 | static int dice_hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file, | |
849 | unsigned int cmd, unsigned long arg) | |
850 | { | |
851 | return dice_hwdep_ioctl(hwdep, file, cmd, | |
852 | (unsigned long)compat_ptr(arg)); | |
82fbb4f7 | 853 | } |
0c29c918 CL |
854 | #else |
855 | #define dice_hwdep_compat_ioctl NULL | |
856 | #endif | |
82fbb4f7 CL |
857 | |
858 | static int dice_create_hwdep(struct dice *dice) | |
859 | { | |
860 | static const struct snd_hwdep_ops ops = { | |
861 | .read = dice_hwdep_read, | |
9dd81e31 | 862 | .release = dice_hwdep_release, |
82fbb4f7 CL |
863 | .poll = dice_hwdep_poll, |
864 | .ioctl = dice_hwdep_ioctl, | |
0c29c918 | 865 | .ioctl_compat = dice_hwdep_compat_ioctl, |
82fbb4f7 CL |
866 | }; |
867 | struct snd_hwdep *hwdep; | |
868 | int err; | |
869 | ||
870 | err = snd_hwdep_new(dice->card, "DICE", 0, &hwdep); | |
871 | if (err < 0) | |
872 | return err; | |
873 | strcpy(hwdep->name, "DICE"); | |
874 | hwdep->iface = SNDRV_HWDEP_IFACE_FW_DICE; | |
875 | hwdep->ops = ops; | |
876 | hwdep->private_data = dice; | |
877 | hwdep->exclusive = true; | |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
c614475b CL |
882 | static int dice_proc_read_mem(struct dice *dice, void *buffer, |
883 | unsigned int offset_q, unsigned int quadlets) | |
884 | { | |
885 | unsigned int i; | |
886 | int err; | |
887 | ||
888 | err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, | |
889 | DICE_PRIVATE_SPACE + 4 * offset_q, | |
890 | buffer, 4 * quadlets, 0); | |
891 | if (err < 0) | |
892 | return err; | |
893 | ||
894 | for (i = 0; i < quadlets; ++i) | |
895 | be32_to_cpus(&((u32 *)buffer)[i]); | |
896 | ||
897 | return 0; | |
898 | } | |
899 | ||
900 | static const char *str_from_array(const char *const strs[], unsigned int count, | |
901 | unsigned int i) | |
902 | { | |
903 | if (i < count) | |
904 | return strs[i]; | |
905 | else | |
906 | return "(unknown)"; | |
907 | } | |
908 | ||
909 | static void dice_proc_fixup_string(char *s, unsigned int size) | |
910 | { | |
911 | unsigned int i; | |
912 | ||
913 | for (i = 0; i < size; i += 4) | |
914 | cpu_to_le32s((u32 *)(s + i)); | |
915 | ||
916 | for (i = 0; i < size - 2; ++i) { | |
917 | if (s[i] == '\0') | |
918 | return; | |
919 | if (s[i] == '\\' && s[i + 1] == '\\') { | |
920 | s[i + 2] = '\0'; | |
921 | return; | |
922 | } | |
923 | } | |
924 | s[size - 1] = '\0'; | |
925 | } | |
926 | ||
927 | static void dice_proc_read(struct snd_info_entry *entry, | |
928 | struct snd_info_buffer *buffer) | |
929 | { | |
930 | static const char *const section_names[5] = { | |
931 | "global", "tx", "rx", "ext_sync", "unused2" | |
932 | }; | |
933 | static const char *const clock_sources[] = { | |
934 | "aes1", "aes2", "aes3", "aes4", "aes", "adat", "tdif", | |
935 | "wc", "arx1", "arx2", "arx3", "arx4", "internal" | |
936 | }; | |
937 | static const char *const rates[] = { | |
938 | "32000", "44100", "48000", "88200", "96000", "176400", "192000", | |
939 | "any low", "any mid", "any high", "none" | |
940 | }; | |
941 | struct dice *dice = entry->private_data; | |
942 | u32 sections[ARRAY_SIZE(section_names) * 2]; | |
943 | struct { | |
944 | u32 number; | |
945 | u32 size; | |
946 | } tx_rx_header; | |
947 | union { | |
948 | struct { | |
949 | u32 owner_hi, owner_lo; | |
950 | u32 notification; | |
951 | char nick_name[NICK_NAME_SIZE]; | |
952 | u32 clock_select; | |
953 | u32 enable; | |
954 | u32 status; | |
955 | u32 extended_status; | |
956 | u32 sample_rate; | |
957 | u32 version; | |
958 | u32 clock_caps; | |
959 | char clock_source_names[CLOCK_SOURCE_NAMES_SIZE]; | |
960 | } global; | |
961 | struct { | |
962 | u32 iso; | |
963 | u32 number_audio; | |
964 | u32 number_midi; | |
965 | u32 speed; | |
966 | char names[TX_NAMES_SIZE]; | |
967 | u32 ac3_caps; | |
968 | u32 ac3_enable; | |
969 | } tx; | |
970 | struct { | |
971 | u32 iso; | |
972 | u32 seq_start; | |
973 | u32 number_audio; | |
974 | u32 number_midi; | |
975 | char names[RX_NAMES_SIZE]; | |
976 | u32 ac3_caps; | |
977 | u32 ac3_enable; | |
978 | } rx; | |
979 | struct { | |
980 | u32 clock_source; | |
981 | u32 locked; | |
982 | u32 rate; | |
983 | u32 adat_user_data; | |
984 | } ext_sync; | |
985 | } buf; | |
986 | unsigned int quadlets, stream, i; | |
987 | ||
988 | if (dice_proc_read_mem(dice, sections, 0, ARRAY_SIZE(sections)) < 0) | |
989 | return; | |
990 | snd_iprintf(buffer, "sections:\n"); | |
991 | for (i = 0; i < ARRAY_SIZE(section_names); ++i) | |
992 | snd_iprintf(buffer, " %s: offset %u, size %u\n", | |
993 | section_names[i], | |
994 | sections[i * 2], sections[i * 2 + 1]); | |
995 | ||
996 | quadlets = min_t(u32, sections[1], sizeof(buf.global) / 4); | |
997 | if (dice_proc_read_mem(dice, &buf.global, sections[0], quadlets) < 0) | |
998 | return; | |
999 | snd_iprintf(buffer, "global:\n"); | |
1000 | snd_iprintf(buffer, " owner: %04x:%04x%08x\n", | |
1001 | buf.global.owner_hi >> 16, | |
1002 | buf.global.owner_hi & 0xffff, buf.global.owner_lo); | |
1003 | snd_iprintf(buffer, " notification: %08x\n", buf.global.notification); | |
1004 | dice_proc_fixup_string(buf.global.nick_name, NICK_NAME_SIZE); | |
1005 | snd_iprintf(buffer, " nick name: %s\n", buf.global.nick_name); | |
1006 | snd_iprintf(buffer, " clock select: %s %s\n", | |
1007 | str_from_array(clock_sources, ARRAY_SIZE(clock_sources), | |
1008 | buf.global.clock_select & CLOCK_SOURCE_MASK), | |
1009 | str_from_array(rates, ARRAY_SIZE(rates), | |
1010 | (buf.global.clock_select & CLOCK_RATE_MASK) | |
1011 | >> CLOCK_RATE_SHIFT)); | |
1012 | snd_iprintf(buffer, " enable: %u\n", buf.global.enable); | |
1013 | snd_iprintf(buffer, " status: %slocked %s\n", | |
1014 | buf.global.status & STATUS_SOURCE_LOCKED ? "" : "un", | |
1015 | str_from_array(rates, ARRAY_SIZE(rates), | |
1016 | (buf.global.status & | |
1017 | STATUS_NOMINAL_RATE_MASK) | |
1018 | >> CLOCK_RATE_SHIFT)); | |
1019 | snd_iprintf(buffer, " ext status: %08x\n", buf.global.extended_status); | |
1020 | snd_iprintf(buffer, " sample rate: %u\n", buf.global.sample_rate); | |
1021 | snd_iprintf(buffer, " version: %u.%u.%u.%u\n", | |
1022 | (buf.global.version >> 24) & 0xff, | |
1023 | (buf.global.version >> 16) & 0xff, | |
1024 | (buf.global.version >> 8) & 0xff, | |
1025 | (buf.global.version >> 0) & 0xff); | |
1026 | if (quadlets >= 90) { | |
1027 | snd_iprintf(buffer, " clock caps:"); | |
1028 | for (i = 0; i <= 6; ++i) | |
1029 | if (buf.global.clock_caps & (1 << i)) | |
1030 | snd_iprintf(buffer, " %s", rates[i]); | |
1031 | for (i = 0; i <= 12; ++i) | |
1032 | if (buf.global.clock_caps & (1 << (16 + i))) | |
1033 | snd_iprintf(buffer, " %s", clock_sources[i]); | |
1034 | snd_iprintf(buffer, "\n"); | |
1035 | dice_proc_fixup_string(buf.global.clock_source_names, | |
1036 | CLOCK_SOURCE_NAMES_SIZE); | |
1037 | snd_iprintf(buffer, " clock source names: %s\n", | |
1038 | buf.global.clock_source_names); | |
1039 | } | |
1040 | ||
1041 | if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0) | |
1042 | return; | |
4d6ff250 | 1043 | quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx) / 4); |
c614475b CL |
1044 | for (stream = 0; stream < tx_rx_header.number; ++stream) { |
1045 | if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 + | |
1046 | stream * tx_rx_header.size, | |
1047 | quadlets) < 0) | |
1048 | break; | |
1049 | snd_iprintf(buffer, "tx %u:\n", stream); | |
1050 | snd_iprintf(buffer, " iso channel: %d\n", (int)buf.tx.iso); | |
1051 | snd_iprintf(buffer, " audio channels: %u\n", | |
1052 | buf.tx.number_audio); | |
1053 | snd_iprintf(buffer, " midi ports: %u\n", buf.tx.number_midi); | |
1054 | snd_iprintf(buffer, " speed: S%u\n", 100u << buf.tx.speed); | |
1055 | if (quadlets >= 68) { | |
1056 | dice_proc_fixup_string(buf.tx.names, TX_NAMES_SIZE); | |
1057 | snd_iprintf(buffer, " names: %s\n", buf.tx.names); | |
1058 | } | |
1059 | if (quadlets >= 70) { | |
1060 | snd_iprintf(buffer, " ac3 caps: %08x\n", | |
1061 | buf.tx.ac3_caps); | |
1062 | snd_iprintf(buffer, " ac3 enable: %08x\n", | |
1063 | buf.tx.ac3_enable); | |
1064 | } | |
1065 | } | |
1066 | ||
1067 | if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0) | |
1068 | return; | |
4d6ff250 | 1069 | quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx) / 4); |
c614475b CL |
1070 | for (stream = 0; stream < tx_rx_header.number; ++stream) { |
1071 | if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 + | |
1072 | stream * tx_rx_header.size, | |
1073 | quadlets) < 0) | |
1074 | break; | |
1075 | snd_iprintf(buffer, "rx %u:\n", stream); | |
1076 | snd_iprintf(buffer, " iso channel: %d\n", (int)buf.rx.iso); | |
ed7e4826 | 1077 | snd_iprintf(buffer, " sequence start: %u\n", buf.rx.seq_start); |
c614475b CL |
1078 | snd_iprintf(buffer, " audio channels: %u\n", |
1079 | buf.rx.number_audio); | |
1080 | snd_iprintf(buffer, " midi ports: %u\n", buf.rx.number_midi); | |
1081 | if (quadlets >= 68) { | |
1082 | dice_proc_fixup_string(buf.rx.names, RX_NAMES_SIZE); | |
1083 | snd_iprintf(buffer, " names: %s\n", buf.rx.names); | |
1084 | } | |
1085 | if (quadlets >= 70) { | |
1086 | snd_iprintf(buffer, " ac3 caps: %08x\n", | |
1087 | buf.rx.ac3_caps); | |
1088 | snd_iprintf(buffer, " ac3 enable: %08x\n", | |
1089 | buf.rx.ac3_enable); | |
1090 | } | |
1091 | } | |
1092 | ||
1093 | quadlets = min_t(u32, sections[7], sizeof(buf.ext_sync) / 4); | |
1094 | if (quadlets >= 4) { | |
1095 | if (dice_proc_read_mem(dice, &buf.ext_sync, | |
1096 | sections[6], 4) < 0) | |
1097 | return; | |
1098 | snd_iprintf(buffer, "ext status:\n"); | |
1099 | snd_iprintf(buffer, " clock source: %s\n", | |
1100 | str_from_array(clock_sources, | |
1101 | ARRAY_SIZE(clock_sources), | |
1102 | buf.ext_sync.clock_source)); | |
1103 | snd_iprintf(buffer, " locked: %u\n", buf.ext_sync.locked); | |
1104 | snd_iprintf(buffer, " rate: %s\n", | |
1105 | str_from_array(rates, ARRAY_SIZE(rates), | |
1106 | buf.ext_sync.rate)); | |
1107 | snd_iprintf(buffer, " adat user data: "); | |
1108 | if (buf.ext_sync.adat_user_data & ADAT_USER_DATA_NO_DATA) | |
1109 | snd_iprintf(buffer, "-\n"); | |
1110 | else | |
1111 | snd_iprintf(buffer, "%x\n", | |
1112 | buf.ext_sync.adat_user_data); | |
1113 | } | |
1114 | } | |
1115 | ||
1116 | static void dice_create_proc(struct dice *dice) | |
1117 | { | |
1118 | struct snd_info_entry *entry; | |
1119 | ||
1120 | if (!snd_card_proc_new(dice->card, "dice", &entry)) | |
1121 | snd_info_set_text_ops(entry, dice, dice_proc_read); | |
1122 | } | |
1123 | ||
82fbb4f7 CL |
1124 | static void dice_card_free(struct snd_card *card) |
1125 | { | |
1126 | struct dice *dice = card->private_data; | |
1127 | ||
be4a2894 | 1128 | amdtp_stream_destroy(&dice->stream); |
82fbb4f7 CL |
1129 | fw_core_remove_address_handler(&dice->notification_handler); |
1130 | mutex_destroy(&dice->mutex); | |
1131 | } | |
1132 | ||
a471fcde CL |
1133 | #define OUI_WEISS 0x001c6a |
1134 | ||
1135 | #define DICE_CATEGORY_ID 0x04 | |
1136 | #define WEISS_CATEGORY_ID 0x00 | |
cbab328d CL |
1137 | |
1138 | static int dice_interface_check(struct fw_unit *unit) | |
1139 | { | |
1140 | static const int min_values[10] = { | |
1141 | 10, 0x64 / 4, | |
1142 | 10, 0x18 / 4, | |
1143 | 10, 0x18 / 4, | |
1144 | 0, 0, | |
1145 | 0, 0, | |
1146 | }; | |
1147 | struct fw_device *device = fw_parent_device(unit); | |
1148 | struct fw_csr_iterator it; | |
1149 | int key, value, vendor = -1, model = -1, err; | |
a471fcde | 1150 | unsigned int category, i; |
cbab328d | 1151 | __be32 pointers[ARRAY_SIZE(min_values)]; |
b20be8de | 1152 | __be32 tx_data[4]; |
cbab328d CL |
1153 | __be32 version; |
1154 | ||
1155 | /* | |
1156 | * Check that GUID and unit directory are constructed according to DICE | |
1157 | * rules, i.e., that the specifier ID is the GUID's OUI, and that the | |
a471fcde CL |
1158 | * GUID chip ID consists of the 8-bit category ID, the 10-bit product |
1159 | * ID, and a 22-bit serial number. | |
cbab328d CL |
1160 | */ |
1161 | fw_csr_iterator_init(&it, unit->directory); | |
1162 | while (fw_csr_iterator_next(&it, &key, &value)) { | |
1163 | switch (key) { | |
1164 | case CSR_SPECIFIER_ID: | |
1165 | vendor = value; | |
1166 | break; | |
1167 | case CSR_MODEL: | |
1168 | model = value; | |
1169 | break; | |
1170 | } | |
1171 | } | |
a471fcde CL |
1172 | if (vendor == OUI_WEISS) |
1173 | category = WEISS_CATEGORY_ID; | |
1174 | else | |
1175 | category = DICE_CATEGORY_ID; | |
1176 | if (device->config_rom[3] != ((vendor << 8) | category) || | |
cbab328d CL |
1177 | device->config_rom[4] >> 22 != model) |
1178 | return -ENODEV; | |
1179 | ||
1180 | /* | |
1181 | * Check that the sub address spaces exist and are located inside the | |
1182 | * private address space. The minimum values are chosen so that all | |
1183 | * minimally required registers are included. | |
1184 | */ | |
1185 | err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, | |
1186 | DICE_PRIVATE_SPACE, | |
1b70485f | 1187 | pointers, sizeof(pointers), 0); |
cbab328d CL |
1188 | if (err < 0) |
1189 | return -ENODEV; | |
1190 | for (i = 0; i < ARRAY_SIZE(pointers); ++i) { | |
1191 | value = be32_to_cpu(pointers[i]); | |
1192 | if (value < min_values[i] || value >= 0x40000) | |
1193 | return -ENODEV; | |
1194 | } | |
1195 | ||
b20be8de CL |
1196 | /* We support playback only. Let capture devices be handled by FFADO. */ |
1197 | err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, | |
1198 | DICE_PRIVATE_SPACE + | |
1199 | be32_to_cpu(pointers[2]) * 4, | |
1200 | tx_data, sizeof(tx_data), 0); | |
1201 | if (err < 0 || (tx_data[0] && tx_data[3])) | |
1202 | return -ENODEV; | |
1203 | ||
cbab328d CL |
1204 | /* |
1205 | * Check that the implemented DICE driver specification major version | |
1206 | * number matches. | |
1207 | */ | |
1208 | err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, | |
1209 | DICE_PRIVATE_SPACE + | |
1210 | be32_to_cpu(pointers[0]) * 4 + GLOBAL_VERSION, | |
1b70485f | 1211 | &version, 4, 0); |
cbab328d CL |
1212 | if (err < 0) |
1213 | return -ENODEV; | |
1214 | if ((version & cpu_to_be32(0xff000000)) != cpu_to_be32(0x01000000)) { | |
1215 | dev_err(&unit->device, | |
1216 | "unknown DICE version: 0x%08x\n", be32_to_cpu(version)); | |
1217 | return -ENODEV; | |
1218 | } | |
1219 | ||
1220 | return 0; | |
1221 | } | |
1222 | ||
15a75c8b CL |
1223 | static int highest_supported_mode_rate(struct dice *dice, unsigned int mode) |
1224 | { | |
1225 | int i; | |
1226 | ||
1227 | for (i = ARRAY_SIZE(dice_rates) - 1; i >= 0; --i) | |
1228 | if ((dice->clock_caps & (1 << i)) && | |
1229 | rate_index_to_mode(i) == mode) | |
1230 | return i; | |
1231 | ||
1232 | return -1; | |
1233 | } | |
1234 | ||
1235 | static int dice_read_mode_params(struct dice *dice, unsigned int mode) | |
1236 | { | |
1237 | __be32 values[2]; | |
1238 | int rate_index, err; | |
1239 | ||
1240 | rate_index = highest_supported_mode_rate(dice, mode); | |
1241 | if (rate_index < 0) { | |
1242 | dice->rx_channels[mode] = 0; | |
1243 | dice->rx_midi_ports[mode] = 0; | |
1244 | return 0; | |
1245 | } | |
1246 | ||
1247 | err = dice_change_rate(dice, rate_index << CLOCK_RATE_SHIFT); | |
1248 | if (err < 0) | |
1249 | return err; | |
1250 | ||
1251 | err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, | |
1252 | rx_address(dice, RX_NUMBER_AUDIO), | |
1253 | values, 2 * 4, 0); | |
1254 | if (err < 0) | |
1255 | return err; | |
1256 | ||
1257 | dice->rx_channels[mode] = be32_to_cpu(values[0]); | |
1258 | dice->rx_midi_ports[mode] = be32_to_cpu(values[1]); | |
1259 | ||
1260 | return 0; | |
1261 | } | |
1262 | ||
a0301998 | 1263 | static int dice_read_params(struct dice *dice) |
82fbb4f7 CL |
1264 | { |
1265 | __be32 pointers[6]; | |
a0301998 | 1266 | __be32 value; |
15a75c8b | 1267 | int mode, err; |
82fbb4f7 CL |
1268 | |
1269 | err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, | |
cbab328d | 1270 | DICE_PRIVATE_SPACE, |
1b70485f | 1271 | pointers, sizeof(pointers), 0); |
82fbb4f7 CL |
1272 | if (err < 0) |
1273 | return err; | |
1274 | ||
1275 | dice->global_offset = be32_to_cpu(pointers[0]) * 4; | |
82fbb4f7 | 1276 | dice->rx_offset = be32_to_cpu(pointers[4]) * 4; |
82fbb4f7 | 1277 | |
a0301998 CL |
1278 | /* some very old firmwares don't tell about their clock support */ |
1279 | if (be32_to_cpu(pointers[1]) * 4 >= GLOBAL_CLOCK_CAPABILITIES + 4) { | |
1280 | err = snd_fw_transaction( | |
1281 | dice->unit, TCODE_READ_QUADLET_REQUEST, | |
1282 | global_address(dice, GLOBAL_CLOCK_CAPABILITIES), | |
1283 | &value, 4, 0); | |
1284 | if (err < 0) | |
1285 | return err; | |
1286 | dice->clock_caps = be32_to_cpu(value); | |
1287 | } else { | |
1288 | /* this should be supported by any device */ | |
1289 | dice->clock_caps = CLOCK_CAP_RATE_44100 | | |
1290 | CLOCK_CAP_RATE_48000 | | |
1291 | CLOCK_CAP_SOURCE_ARX1 | | |
1292 | CLOCK_CAP_SOURCE_INTERNAL; | |
1293 | } | |
1294 | ||
15a75c8b CL |
1295 | for (mode = 2; mode >= 0; --mode) { |
1296 | err = dice_read_mode_params(dice, mode); | |
1297 | if (err < 0) | |
1298 | return err; | |
1299 | } | |
1300 | ||
82fbb4f7 CL |
1301 | return 0; |
1302 | } | |
1303 | ||
1304 | static void dice_card_strings(struct dice *dice) | |
1305 | { | |
1306 | struct snd_card *card = dice->card; | |
1307 | struct fw_device *dev = fw_parent_device(dice->unit); | |
1308 | char vendor[32], model[32]; | |
1309 | unsigned int i; | |
1310 | int err; | |
1311 | ||
1312 | strcpy(card->driver, "DICE"); | |
1313 | ||
1314 | strcpy(card->shortname, "DICE"); | |
1315 | BUILD_BUG_ON(NICK_NAME_SIZE < sizeof(card->shortname)); | |
1316 | err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, | |
1317 | global_address(dice, GLOBAL_NICK_NAME), | |
1b70485f | 1318 | card->shortname, sizeof(card->shortname), 0); |
82fbb4f7 CL |
1319 | if (err >= 0) { |
1320 | /* DICE strings are returned in "always-wrong" endianness */ | |
1321 | BUILD_BUG_ON(sizeof(card->shortname) % 4 != 0); | |
1322 | for (i = 0; i < sizeof(card->shortname); i += 4) | |
1323 | swab32s((u32 *)&card->shortname[i]); | |
1324 | card->shortname[sizeof(card->shortname) - 1] = '\0'; | |
1325 | } | |
1326 | ||
1327 | strcpy(vendor, "?"); | |
1328 | fw_csr_string(dev->config_rom + 5, CSR_VENDOR, vendor, sizeof(vendor)); | |
1329 | strcpy(model, "?"); | |
1330 | fw_csr_string(dice->unit->directory, CSR_MODEL, model, sizeof(model)); | |
1331 | snprintf(card->longname, sizeof(card->longname), | |
cbab328d CL |
1332 | "%s %s (serial %u) at %s, S%d", |
1333 | vendor, model, dev->config_rom[4] & 0x3fffff, | |
82fbb4f7 CL |
1334 | dev_name(&dice->unit->device), 100 << dev->max_speed); |
1335 | ||
1336 | strcpy(card->mixername, "DICE"); | |
1337 | } | |
1338 | ||
1339 | static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id) | |
1340 | { | |
1341 | struct snd_card *card; | |
1342 | struct dice *dice; | |
341682cd | 1343 | __be32 clock_sel; |
82fbb4f7 CL |
1344 | int err; |
1345 | ||
cbab328d CL |
1346 | err = dice_interface_check(unit); |
1347 | if (err < 0) | |
1348 | return err; | |
1349 | ||
06b45f00 TI |
1350 | err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, |
1351 | sizeof(*dice), &card); | |
82fbb4f7 CL |
1352 | if (err < 0) |
1353 | return err; | |
82fbb4f7 CL |
1354 | |
1355 | dice = card->private_data; | |
1356 | dice->card = card; | |
0c29c918 | 1357 | spin_lock_init(&dice->lock); |
82fbb4f7 CL |
1358 | mutex_init(&dice->mutex); |
1359 | dice->unit = unit; | |
15a75c8b | 1360 | init_completion(&dice->clock_accepted); |
0c29c918 | 1361 | init_waitqueue_head(&dice->hwdep_wait); |
82fbb4f7 | 1362 | |
82fbb4f7 CL |
1363 | dice->notification_handler.length = 4; |
1364 | dice->notification_handler.address_callback = dice_notification; | |
1365 | dice->notification_handler.callback_data = dice; | |
1366 | err = fw_core_add_address_handler(&dice->notification_handler, | |
1367 | &fw_high_memory_region); | |
1368 | if (err < 0) | |
1369 | goto err_mutex; | |
1370 | ||
5ea4018e | 1371 | err = dice_owner_set(dice); |
82fbb4f7 CL |
1372 | if (err < 0) |
1373 | goto err_notification_handler; | |
5ea4018e CL |
1374 | |
1375 | err = dice_read_params(dice); | |
1376 | if (err < 0) | |
1377 | goto err_owner; | |
1378 | ||
1379 | err = fw_iso_resources_init(&dice->resources, unit); | |
1380 | if (err < 0) | |
1381 | goto err_owner; | |
82fbb4f7 CL |
1382 | dice->resources.channels_mask = 0x00000000ffffffffuLL; |
1383 | ||
3ff7e8f0 | 1384 | err = amdtp_stream_init(&dice->stream, unit, AMDTP_OUT_STREAM, |
10550bea | 1385 | CIP_BLOCKING); |
82fbb4f7 CL |
1386 | if (err < 0) |
1387 | goto err_resources; | |
1388 | ||
82fbb4f7 CL |
1389 | card->private_free = dice_card_free; |
1390 | ||
1391 | dice_card_strings(dice); | |
1392 | ||
341682cd CL |
1393 | err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, |
1394 | global_address(dice, GLOBAL_CLOCK_SELECT), | |
1b70485f | 1395 | &clock_sel, 4, 0); |
341682cd CL |
1396 | if (err < 0) |
1397 | goto error; | |
1398 | clock_sel &= cpu_to_be32(~CLOCK_SOURCE_MASK); | |
1399 | clock_sel |= cpu_to_be32(CLOCK_SOURCE_ARX1); | |
1400 | err = snd_fw_transaction(unit, TCODE_WRITE_QUADLET_REQUEST, | |
1401 | global_address(dice, GLOBAL_CLOCK_SELECT), | |
1b70485f | 1402 | &clock_sel, 4, 0); |
341682cd CL |
1403 | if (err < 0) |
1404 | goto error; | |
1405 | ||
82fbb4f7 CL |
1406 | err = dice_create_pcm(dice); |
1407 | if (err < 0) | |
1408 | goto error; | |
1409 | ||
1410 | err = dice_create_hwdep(dice); | |
1411 | if (err < 0) | |
1412 | goto error; | |
1413 | ||
c614475b CL |
1414 | dice_create_proc(dice); |
1415 | ||
82fbb4f7 CL |
1416 | err = snd_card_register(card); |
1417 | if (err < 0) | |
1418 | goto error; | |
1419 | ||
1420 | dev_set_drvdata(&unit->device, dice); | |
1421 | ||
1422 | return 0; | |
1423 | ||
82fbb4f7 CL |
1424 | err_resources: |
1425 | fw_iso_resources_destroy(&dice->resources); | |
5ea4018e CL |
1426 | err_owner: |
1427 | dice_owner_clear(dice); | |
82fbb4f7 CL |
1428 | err_notification_handler: |
1429 | fw_core_remove_address_handler(&dice->notification_handler); | |
1430 | err_mutex: | |
1431 | mutex_destroy(&dice->mutex); | |
1432 | error: | |
1433 | snd_card_free(card); | |
1434 | return err; | |
1435 | } | |
1436 | ||
1437 | static void dice_remove(struct fw_unit *unit) | |
1438 | { | |
1439 | struct dice *dice = dev_get_drvdata(&unit->device); | |
1440 | ||
be4a2894 | 1441 | amdtp_stream_pcm_abort(&dice->stream); |
4ed31f20 CL |
1442 | |
1443 | snd_card_disconnect(dice->card); | |
1444 | ||
a8c558f6 SR |
1445 | mutex_lock(&dice->mutex); |
1446 | ||
6abce9e6 | 1447 | dice_stream_stop(dice); |
82fbb4f7 | 1448 | dice_owner_clear(dice); |
4ed31f20 | 1449 | |
82fbb4f7 CL |
1450 | mutex_unlock(&dice->mutex); |
1451 | ||
1452 | snd_card_free_when_closed(dice->card); | |
1453 | } | |
1454 | ||
1455 | static void dice_bus_reset(struct fw_unit *unit) | |
1456 | { | |
1457 | struct dice *dice = dev_get_drvdata(&unit->device); | |
1458 | ||
82fbb4f7 | 1459 | /* |
82fbb4f7 CL |
1460 | * On a bus reset, the DICE firmware disables streaming and then goes |
1461 | * off contemplating its own navel for hundreds of milliseconds before | |
1462 | * it can react to any of our attempts to reenable streaming. This | |
1463 | * means that we lose synchronization anyway, so we force our streams | |
1464 | * to stop so that the application can restart them in an orderly | |
1465 | * manner. | |
1466 | */ | |
be4a2894 | 1467 | amdtp_stream_pcm_abort(&dice->stream); |
eadce07f | 1468 | |
a8c558f6 SR |
1469 | mutex_lock(&dice->mutex); |
1470 | ||
eadce07f | 1471 | dice->global_enabled = false; |
6abce9e6 CL |
1472 | dice_stream_stop_packets(dice); |
1473 | ||
1474 | dice_owner_update(dice); | |
1475 | ||
1476 | fw_iso_resources_update(&dice->resources); | |
1477 | ||
82fbb4f7 CL |
1478 | mutex_unlock(&dice->mutex); |
1479 | } | |
1480 | ||
82fbb4f7 CL |
1481 | #define DICE_INTERFACE 0x000001 |
1482 | ||
1483 | static const struct ieee1394_device_id dice_id_table[] = { | |
1484 | { | |
cbab328d CL |
1485 | .match_flags = IEEE1394_MATCH_VERSION, |
1486 | .version = DICE_INTERFACE, | |
82fbb4f7 CL |
1487 | }, |
1488 | { } | |
1489 | }; | |
1490 | MODULE_DEVICE_TABLE(ieee1394, dice_id_table); | |
1491 | ||
1492 | static struct fw_driver dice_driver = { | |
1493 | .driver = { | |
1494 | .owner = THIS_MODULE, | |
1495 | .name = KBUILD_MODNAME, | |
1496 | .bus = &fw_bus_type, | |
1497 | }, | |
1498 | .probe = dice_probe, | |
1499 | .update = dice_bus_reset, | |
1500 | .remove = dice_remove, | |
1501 | .id_table = dice_id_table, | |
1502 | }; | |
1503 | ||
1504 | static int __init alsa_dice_init(void) | |
1505 | { | |
1506 | return driver_register(&dice_driver.driver); | |
1507 | } | |
1508 | ||
1509 | static void __exit alsa_dice_exit(void) | |
1510 | { | |
1511 | driver_unregister(&dice_driver.driver); | |
1512 | } | |
1513 | ||
1514 | module_init(alsa_dice_init); | |
1515 | module_exit(alsa_dice_exit); |