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x86/xen: resume timer irqs early
[linux/fpc-iii.git] / sound / firewire / speakers.c
blobfe9e6e2f2c5b2a825ae24a432541d45de8f029fb
1 /*
2 * OXFW970-based speakers 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
8 #include <linux/device.h>
9 #include <linux/firewire.h>
10 #include <linux/firewire-constants.h>
11 #include <linux/module.h>
12 #include <linux/mod_devicetable.h>
13 #include <linux/mutex.h>
14 #include <linux/slab.h>
15 #include <sound/control.h>
16 #include <sound/core.h>
17 #include <sound/initval.h>
18 #include <sound/pcm.h>
19 #include <sound/pcm_params.h>
20 #include "cmp.h"
21 #include "fcp.h"
22 #include "amdtp.h"
23 #include "lib.h"
24
25 #define OXFORD_FIRMWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x50000)
26 /* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */
27
28 #define OXFORD_HARDWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x90020)
29 #define OXFORD_HARDWARE_ID_OXFW970 0x39443841
30 #define OXFORD_HARDWARE_ID_OXFW971 0x39373100
31
32 #define VENDOR_GRIFFIN 0x001292
33 #define VENDOR_LACIE 0x00d04b
34
35 #define SPECIFIER_1394TA 0x00a02d
36 #define VERSION_AVC 0x010001
37
38 struct device_info {
39 const char *driver_name;
40 const char *short_name;
41 const char *long_name;
42 int (*pcm_constraints)(struct snd_pcm_runtime *runtime);
43 unsigned int mixer_channels;
44 u8 mute_fb_id;
45 u8 volume_fb_id;
46 };
47
48 struct fwspk {
49 struct snd_card *card;
50 struct fw_unit *unit;
51 const struct device_info *device_info;
52 struct mutex mutex;
53 struct cmp_connection connection;
54 struct amdtp_out_stream stream;
55 bool stream_running;
56 bool mute;
57 s16 volume[6];
58 s16 volume_min;
59 s16 volume_max;
60 };
61
62 MODULE_DESCRIPTION("FireWire speakers driver");
63 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
64 MODULE_LICENSE("GPL v2");
65
66 static int firewave_rate_constraint(struct snd_pcm_hw_params *params,
67 struct snd_pcm_hw_rule *rule)
68 {
69 static unsigned int stereo_rates[] = { 48000, 96000 };
70 struct snd_interval *channels =
71 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
72 struct snd_interval *rate =
73 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
74
75 /* two channels work only at 48/96 kHz */
76 if (snd_interval_max(channels) < 6)
77 return snd_interval_list(rate, 2, stereo_rates, 0);
78 return 0;
79 }
80
81 static int firewave_channels_constraint(struct snd_pcm_hw_params *params,
82 struct snd_pcm_hw_rule *rule)
83 {
84 static const struct snd_interval all_channels = { .min = 6, .max = 6 };
85 struct snd_interval *rate =
86 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
87 struct snd_interval *channels =
88 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
89
90 /* 32/44.1 kHz work only with all six channels */
91 if (snd_interval_max(rate) < 48000)
92 return snd_interval_refine(channels, &all_channels);
93 return 0;
94 }
95
96 static int firewave_constraints(struct snd_pcm_runtime *runtime)
97 {
98 static unsigned int channels_list[] = { 2, 6 };
99 static struct snd_pcm_hw_constraint_list channels_list_constraint = {
100 .count = 2,
101 .list = channels_list,
102 };
103 int err;
104
105 runtime->hw.rates = SNDRV_PCM_RATE_32000 |
106 SNDRV_PCM_RATE_44100 |
107 SNDRV_PCM_RATE_48000 |
108 SNDRV_PCM_RATE_96000;
109 runtime->hw.channels_max = 6;
110
111 err = snd_pcm_hw_constraint_list(runtime, 0,
112 SNDRV_PCM_HW_PARAM_CHANNELS,
113 &channels_list_constraint);
114 if (err < 0)
115 return err;
116 err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
117 firewave_rate_constraint, NULL,
118 SNDRV_PCM_HW_PARAM_CHANNELS, -1);
119 if (err < 0)
120 return err;
121 err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
122 firewave_channels_constraint, NULL,
123 SNDRV_PCM_HW_PARAM_RATE, -1);
124 if (err < 0)
125 return err;
126
127 return 0;
128 }
129
130 static int lacie_speakers_constraints(struct snd_pcm_runtime *runtime)
131 {
132 runtime->hw.rates = SNDRV_PCM_RATE_32000 |
133 SNDRV_PCM_RATE_44100 |
134 SNDRV_PCM_RATE_48000 |
135 SNDRV_PCM_RATE_88200 |
136 SNDRV_PCM_RATE_96000;
137
138 return 0;
139 }
140
141 static int fwspk_open(struct snd_pcm_substream *substream)
142 {
143 static const struct snd_pcm_hardware hardware = {
144 .info = SNDRV_PCM_INFO_MMAP |
145 SNDRV_PCM_INFO_MMAP_VALID |
146 SNDRV_PCM_INFO_BATCH |
147 SNDRV_PCM_INFO_INTERLEAVED |
148 SNDRV_PCM_INFO_BLOCK_TRANSFER,
149 .formats = AMDTP_OUT_PCM_FORMAT_BITS,
150 .channels_min = 2,
151 .channels_max = 2,
152 .buffer_bytes_max = 4 * 1024 * 1024,
153 .period_bytes_min = 1,
154 .period_bytes_max = UINT_MAX,
155 .periods_min = 1,
156 .periods_max = UINT_MAX,
157 };
158 struct fwspk *fwspk = substream->private_data;
159 struct snd_pcm_runtime *runtime = substream->runtime;
160 int err;
161
162 runtime->hw = hardware;
163
164 err = fwspk->device_info->pcm_constraints(runtime);
165 if (err < 0)
166 return err;
167 err = snd_pcm_limit_hw_rates(runtime);
168 if (err < 0)
169 return err;
170
171 err = snd_pcm_hw_constraint_minmax(runtime,
172 SNDRV_PCM_HW_PARAM_PERIOD_TIME,
173 5000, UINT_MAX);
174 if (err < 0)
175 return err;
176
177 err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
178 if (err < 0)
179 return err;
180
181 return 0;
182 }
183
184 static int fwspk_close(struct snd_pcm_substream *substream)
185 {
186 return 0;
187 }
188
189 static void fwspk_stop_stream(struct fwspk *fwspk)
190 {
191 if (fwspk->stream_running) {
192 amdtp_out_stream_stop(&fwspk->stream);
193 cmp_connection_break(&fwspk->connection);
194 fwspk->stream_running = false;
195 }
196 }
197
198 static int fwspk_set_rate(struct fwspk *fwspk, unsigned int sfc)
199 {
200 u8 *buf;
201 int err;
202
203 buf = kmalloc(8, GFP_KERNEL);
204 if (!buf)
205 return -ENOMEM;
206
207 buf[0] = 0x00; /* AV/C, CONTROL */
208 buf[1] = 0xff; /* unit */
209 buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */
210 buf[3] = 0x00; /* plug 0 */
211 buf[4] = 0x90; /* format: audio */
212 buf[5] = 0x00 | sfc; /* AM824, frequency */
213 buf[6] = 0xff; /* SYT (not used) */
214 buf[7] = 0xff;
215
216 err = fcp_avc_transaction(fwspk->unit, buf, 8, buf, 8,
217 BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5));
218 if (err < 0)
219 goto error;
220 if (err < 6 || buf[0] != 0x09 /* ACCEPTED */) {
221 dev_err(&fwspk->unit->device, "failed to set sample rate\n");
222 err = -EIO;
223 goto error;
224 }
225
226 err = 0;
227
228 error:
229 kfree(buf);
230
231 return err;
232 }
233
234 static int fwspk_hw_params(struct snd_pcm_substream *substream,
235 struct snd_pcm_hw_params *hw_params)
236 {
237 struct fwspk *fwspk = substream->private_data;
238 int err;
239
240 mutex_lock(&fwspk->mutex);
241 fwspk_stop_stream(fwspk);
242 mutex_unlock(&fwspk->mutex);
243
244 err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
245 params_buffer_bytes(hw_params));
246 if (err < 0)
247 goto error;
248
249 amdtp_out_stream_set_rate(&fwspk->stream, params_rate(hw_params));
250 amdtp_out_stream_set_pcm(&fwspk->stream, params_channels(hw_params));
251
252 amdtp_out_stream_set_pcm_format(&fwspk->stream,
253 params_format(hw_params));
254
255 err = fwspk_set_rate(fwspk, fwspk->stream.sfc);
256 if (err < 0)
257 goto err_buffer;
258
259 return 0;
260
261 err_buffer:
262 snd_pcm_lib_free_vmalloc_buffer(substream);
263 error:
264 return err;
265 }
266
267 static int fwspk_hw_free(struct snd_pcm_substream *substream)
268 {
269 struct fwspk *fwspk = substream->private_data;
270
271 mutex_lock(&fwspk->mutex);
272 fwspk_stop_stream(fwspk);
273 mutex_unlock(&fwspk->mutex);
274
275 return snd_pcm_lib_free_vmalloc_buffer(substream);
276 }
277
278 static int fwspk_prepare(struct snd_pcm_substream *substream)
279 {
280 struct fwspk *fwspk = substream->private_data;
281 int err;
282
283 mutex_lock(&fwspk->mutex);
284
285 if (amdtp_out_streaming_error(&fwspk->stream))
286 fwspk_stop_stream(fwspk);
287
288 if (!fwspk->stream_running) {
289 err = cmp_connection_establish(&fwspk->connection,
290 amdtp_out_stream_get_max_payload(&fwspk->stream));
291 if (err < 0)
292 goto err_mutex;
293
294 err = amdtp_out_stream_start(&fwspk->stream,
295 fwspk->connection.resources.channel,
296 fwspk->connection.speed);
297 if (err < 0)
298 goto err_connection;
299
300 fwspk->stream_running = true;
301 }
302
303 mutex_unlock(&fwspk->mutex);
304
305 amdtp_out_stream_pcm_prepare(&fwspk->stream);
306
307 return 0;
308
309 err_connection:
310 cmp_connection_break(&fwspk->connection);
311 err_mutex:
312 mutex_unlock(&fwspk->mutex);
313
314 return err;
315 }
316
317 static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd)
318 {
319 struct fwspk *fwspk = substream->private_data;
320 struct snd_pcm_substream *pcm;
321
322 switch (cmd) {
323 case SNDRV_PCM_TRIGGER_START:
324 pcm = substream;
325 break;
326 case SNDRV_PCM_TRIGGER_STOP:
327 pcm = NULL;
328 break;
329 default:
330 return -EINVAL;
331 }
332 amdtp_out_stream_pcm_trigger(&fwspk->stream, pcm);
333 return 0;
334 }
335
336 static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream)
337 {
338 struct fwspk *fwspk = substream->private_data;
339
340 return amdtp_out_stream_pcm_pointer(&fwspk->stream);
341 }
342
343 static int fwspk_create_pcm(struct fwspk *fwspk)
344 {
345 static struct snd_pcm_ops ops = {
346 .open = fwspk_open,
347 .close = fwspk_close,
348 .ioctl = snd_pcm_lib_ioctl,
349 .hw_params = fwspk_hw_params,
350 .hw_free = fwspk_hw_free,
351 .prepare = fwspk_prepare,
352 .trigger = fwspk_trigger,
353 .pointer = fwspk_pointer,
354 .page = snd_pcm_lib_get_vmalloc_page,
355 .mmap = snd_pcm_lib_mmap_vmalloc,
356 };
357 struct snd_pcm *pcm;
358 int err;
359
360 err = snd_pcm_new(fwspk->card, "OXFW970", 0, 1, 0, &pcm);
361 if (err < 0)
362 return err;
363 pcm->private_data = fwspk;
364 strcpy(pcm->name, fwspk->device_info->short_name);
365 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops);
366 return 0;
367 }
368
369 enum control_action { CTL_READ, CTL_WRITE };
370 enum control_attribute {
371 CTL_MIN = 0x02,
372 CTL_MAX = 0x03,
373 CTL_CURRENT = 0x10,
374 };
375
376 static int fwspk_mute_command(struct fwspk *fwspk, bool *value,
377 enum control_action action)
378 {
379 u8 *buf;
380 u8 response_ok;
381 int err;
382
383 buf = kmalloc(11, GFP_KERNEL);
384 if (!buf)
385 return -ENOMEM;
386
387 if (action == CTL_READ) {
388 buf[0] = 0x01; /* AV/C, STATUS */
389 response_ok = 0x0c; /* STABLE */
390 } else {
391 buf[0] = 0x00; /* AV/C, CONTROL */
392 response_ok = 0x09; /* ACCEPTED */
393 }
394 buf[1] = 0x08; /* audio unit 0 */
395 buf[2] = 0xb8; /* FUNCTION BLOCK */
396 buf[3] = 0x81; /* function block type: feature */
397 buf[4] = fwspk->device_info->mute_fb_id; /* function block ID */
398 buf[5] = 0x10; /* control attribute: current */
399 buf[6] = 0x02; /* selector length */
400 buf[7] = 0x00; /* audio channel number */
401 buf[8] = 0x01; /* control selector: mute */
402 buf[9] = 0x01; /* control data length */
403 if (action == CTL_READ)
404 buf[10] = 0xff;
405 else
406 buf[10] = *value ? 0x70 : 0x60;
407
408 err = fcp_avc_transaction(fwspk->unit, buf, 11, buf, 11, 0x3fe);
409 if (err < 0)
410 goto error;
411 if (err < 11) {
412 dev_err(&fwspk->unit->device, "short FCP response\n");
413 err = -EIO;
414 goto error;
415 }
416 if (buf[0] != response_ok) {
417 dev_err(&fwspk->unit->device, "mute command failed\n");
418 err = -EIO;
419 goto error;
420 }
421 if (action == CTL_READ)
422 *value = buf[10] == 0x70;
423
424 err = 0;
425
426 error:
427 kfree(buf);
428
429 return err;
430 }
431
432 static int fwspk_volume_command(struct fwspk *fwspk, s16 *value,
433 unsigned int channel,
434 enum control_attribute attribute,
435 enum control_action action)
436 {
437 u8 *buf;
438 u8 response_ok;
439 int err;
440
441 buf = kmalloc(12, GFP_KERNEL);
442 if (!buf)
443 return -ENOMEM;
444
445 if (action == CTL_READ) {
446 buf[0] = 0x01; /* AV/C, STATUS */
447 response_ok = 0x0c; /* STABLE */
448 } else {
449 buf[0] = 0x00; /* AV/C, CONTROL */
450 response_ok = 0x09; /* ACCEPTED */
451 }
452 buf[1] = 0x08; /* audio unit 0 */
453 buf[2] = 0xb8; /* FUNCTION BLOCK */
454 buf[3] = 0x81; /* function block type: feature */
455 buf[4] = fwspk->device_info->volume_fb_id; /* function block ID */
456 buf[5] = attribute; /* control attribute */
457 buf[6] = 0x02; /* selector length */
458 buf[7] = channel; /* audio channel number */
459 buf[8] = 0x02; /* control selector: volume */
460 buf[9] = 0x02; /* control data length */
461 if (action == CTL_READ) {
462 buf[10] = 0xff;
463 buf[11] = 0xff;
464 } else {
465 buf[10] = *value >> 8;
466 buf[11] = *value;
467 }
468
469 err = fcp_avc_transaction(fwspk->unit, buf, 12, buf, 12, 0x3fe);
470 if (err < 0)
471 goto error;
472 if (err < 12) {
473 dev_err(&fwspk->unit->device, "short FCP response\n");
474 err = -EIO;
475 goto error;
476 }
477 if (buf[0] != response_ok) {
478 dev_err(&fwspk->unit->device, "volume command failed\n");
479 err = -EIO;
480 goto error;
481 }
482 if (action == CTL_READ)
483 *value = (buf[10] << 8) | buf[11];
484
485 err = 0;
486
487 error:
488 kfree(buf);
489
490 return err;
491 }
492
493 static int fwspk_mute_get(struct snd_kcontrol *control,
494 struct snd_ctl_elem_value *value)
495 {
496 struct fwspk *fwspk = control->private_data;
497
498 value->value.integer.value[0] = !fwspk->mute;
499
500 return 0;
501 }
502
503 static int fwspk_mute_put(struct snd_kcontrol *control,
504 struct snd_ctl_elem_value *value)
505 {
506 struct fwspk *fwspk = control->private_data;
507 bool mute;
508 int err;
509
510 mute = !value->value.integer.value[0];
511
512 if (mute == fwspk->mute)
513 return 0;
514
515 err = fwspk_mute_command(fwspk, &mute, CTL_WRITE);
516 if (err < 0)
517 return err;
518 fwspk->mute = mute;
519
520 return 1;
521 }
522
523 static int fwspk_volume_info(struct snd_kcontrol *control,
524 struct snd_ctl_elem_info *info)
525 {
526 struct fwspk *fwspk = control->private_data;
527
528 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
529 info->count = fwspk->device_info->mixer_channels;
530 info->value.integer.min = fwspk->volume_min;
531 info->value.integer.max = fwspk->volume_max;
532
533 return 0;
534 }
535
536 static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 };
537
538 static int fwspk_volume_get(struct snd_kcontrol *control,
539 struct snd_ctl_elem_value *value)
540 {
541 struct fwspk *fwspk = control->private_data;
542 unsigned int i;
543
544 for (i = 0; i < fwspk->device_info->mixer_channels; ++i)
545 value->value.integer.value[channel_map[i]] = fwspk->volume[i];
546
547 return 0;
548 }
549
550 static int fwspk_volume_put(struct snd_kcontrol *control,
551 struct snd_ctl_elem_value *value)
552 {
553 struct fwspk *fwspk = control->private_data;
554 unsigned int i, changed_channels;
555 bool equal_values = true;
556 s16 volume;
557 int err;
558
559 for (i = 0; i < fwspk->device_info->mixer_channels; ++i) {
560 if (value->value.integer.value[i] < fwspk->volume_min ||
561 value->value.integer.value[i] > fwspk->volume_max)
562 return -EINVAL;
563 if (value->value.integer.value[i] !=
564 value->value.integer.value[0])
565 equal_values = false;
566 }
567
568 changed_channels = 0;
569 for (i = 0; i < fwspk->device_info->mixer_channels; ++i)
570 if (value->value.integer.value[channel_map[i]] !=
571 fwspk->volume[i])
572 changed_channels |= 1 << (i + 1);
573
574 if (equal_values && changed_channels != 0)
575 changed_channels = 1 << 0;
576
577 for (i = 0; i <= fwspk->device_info->mixer_channels; ++i) {
578 volume = value->value.integer.value[channel_map[i ? i - 1 : 0]];
579 if (changed_channels & (1 << i)) {
580 err = fwspk_volume_command(fwspk, &volume, i,
581 CTL_CURRENT, CTL_WRITE);
582 if (err < 0)
583 return err;
584 }
585 if (i > 0)
586 fwspk->volume[i - 1] = volume;
587 }
588
589 return changed_channels != 0;
590 }
591
592 static int fwspk_create_mixer(struct fwspk *fwspk)
593 {
594 static const struct snd_kcontrol_new controls[] = {
595 {
596 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
597 .name = "PCM Playback Switch",
598 .info = snd_ctl_boolean_mono_info,
599 .get = fwspk_mute_get,
600 .put = fwspk_mute_put,
601 },
602 {
603 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
604 .name = "PCM Playback Volume",
605 .info = fwspk_volume_info,
606 .get = fwspk_volume_get,
607 .put = fwspk_volume_put,
608 },
609 };
610 unsigned int i, first_ch;
611 int err;
612
613 err = fwspk_volume_command(fwspk, &fwspk->volume_min,
614 0, CTL_MIN, CTL_READ);
615 if (err < 0)
616 return err;
617 err = fwspk_volume_command(fwspk, &fwspk->volume_max,
618 0, CTL_MAX, CTL_READ);
619 if (err < 0)
620 return err;
621
622 err = fwspk_mute_command(fwspk, &fwspk->mute, CTL_READ);
623 if (err < 0)
624 return err;
625
626 first_ch = fwspk->device_info->mixer_channels == 1 ? 0 : 1;
627 for (i = 0; i < fwspk->device_info->mixer_channels; ++i) {
628 err = fwspk_volume_command(fwspk, &fwspk->volume[i],
629 first_ch + i, CTL_CURRENT, CTL_READ);
630 if (err < 0)
631 return err;
632 }
633
634 for (i = 0; i < ARRAY_SIZE(controls); ++i) {
635 err = snd_ctl_add(fwspk->card,
636 snd_ctl_new1(&controls[i], fwspk));
637 if (err < 0)
638 return err;
639 }
640
641 return 0;
642 }
643
644 static u32 fwspk_read_firmware_version(struct fw_unit *unit)
645 {
646 __be32 data;
647 int err;
648
649 err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
650 OXFORD_FIRMWARE_ID_ADDRESS, &data, 4);
651 return err >= 0 ? be32_to_cpu(data) : 0;
652 }
653
654 static void fwspk_card_free(struct snd_card *card)
655 {
656 struct fwspk *fwspk = card->private_data;
657
658 amdtp_out_stream_destroy(&fwspk->stream);
659 cmp_connection_destroy(&fwspk->connection);
660 fw_unit_put(fwspk->unit);
661 mutex_destroy(&fwspk->mutex);
662 }
663
664 static int fwspk_probe(struct fw_unit *unit,
665 const struct ieee1394_device_id *id)
666 {
667 struct fw_device *fw_dev = fw_parent_device(unit);
668 struct snd_card *card;
669 struct fwspk *fwspk;
670 u32 firmware;
671 int err;
672
673 err = snd_card_create(-1, NULL, THIS_MODULE, sizeof(*fwspk), &card);
674 if (err < 0)
675 return err;
676 snd_card_set_dev(card, &unit->device);
677
678 fwspk = card->private_data;
679 fwspk->card = card;
680 mutex_init(&fwspk->mutex);
681 fwspk->unit = fw_unit_get(unit);
682 fwspk->device_info = (const struct device_info *)id->driver_data;
683
684 err = cmp_connection_init(&fwspk->connection, unit, 0);
685 if (err < 0)
686 goto err_unit;
687
688 err = amdtp_out_stream_init(&fwspk->stream, unit, CIP_NONBLOCKING);
689 if (err < 0)
690 goto err_connection;
691
692 card->private_free = fwspk_card_free;
693
694 strcpy(card->driver, fwspk->device_info->driver_name);
695 strcpy(card->shortname, fwspk->device_info->short_name);
696 firmware = fwspk_read_firmware_version(unit);
697 snprintf(card->longname, sizeof(card->longname),
698 "%s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
699 fwspk->device_info->long_name,
700 firmware >> 20, firmware & 0xffff,
701 fw_dev->config_rom[3], fw_dev->config_rom[4],
702 dev_name(&unit->device), 100 << fw_dev->max_speed);
703 strcpy(card->mixername, "OXFW970");
704
705 err = fwspk_create_pcm(fwspk);
706 if (err < 0)
707 goto error;
708
709 err = fwspk_create_mixer(fwspk);
710 if (err < 0)
711 goto error;
712
713 err = snd_card_register(card);
714 if (err < 0)
715 goto error;
716
717 dev_set_drvdata(&unit->device, fwspk);
718
719 return 0;
720
721 err_connection:
722 cmp_connection_destroy(&fwspk->connection);
723 err_unit:
724 fw_unit_put(fwspk->unit);
725 mutex_destroy(&fwspk->mutex);
726 error:
727 snd_card_free(card);
728 return err;
729 }
730
731 static void fwspk_bus_reset(struct fw_unit *unit)
732 {
733 struct fwspk *fwspk = dev_get_drvdata(&unit->device);
734
735 fcp_bus_reset(fwspk->unit);
736
737 if (cmp_connection_update(&fwspk->connection) < 0) {
738 amdtp_out_stream_pcm_abort(&fwspk->stream);
739 mutex_lock(&fwspk->mutex);
740 fwspk_stop_stream(fwspk);
741 mutex_unlock(&fwspk->mutex);
742 return;
743 }
744
745 amdtp_out_stream_update(&fwspk->stream);
746 }
747
748 static void fwspk_remove(struct fw_unit *unit)
749 {
750 struct fwspk *fwspk = dev_get_drvdata(&unit->device);
751
752 amdtp_out_stream_pcm_abort(&fwspk->stream);
753 snd_card_disconnect(fwspk->card);
754
755 mutex_lock(&fwspk->mutex);
756 fwspk_stop_stream(fwspk);
757 mutex_unlock(&fwspk->mutex);
758
759 snd_card_free_when_closed(fwspk->card);
760 }
761
762 static const struct device_info griffin_firewave = {
763 .driver_name = "FireWave",
764 .short_name = "FireWave",
765 .long_name = "Griffin FireWave Surround",
766 .pcm_constraints = firewave_constraints,
767 .mixer_channels = 6,
768 .mute_fb_id = 0x01,
769 .volume_fb_id = 0x02,
770 };
771
772 static const struct device_info lacie_speakers = {
773 .driver_name = "FWSpeakers",
774 .short_name = "FireWire Speakers",
775 .long_name = "LaCie FireWire Speakers",
776 .pcm_constraints = lacie_speakers_constraints,
777 .mixer_channels = 1,
778 .mute_fb_id = 0x01,
779 .volume_fb_id = 0x01,
780 };
781
782 static const struct ieee1394_device_id fwspk_id_table[] = {
783 {
784 .match_flags = IEEE1394_MATCH_VENDOR_ID |
785 IEEE1394_MATCH_MODEL_ID |
786 IEEE1394_MATCH_SPECIFIER_ID |
787 IEEE1394_MATCH_VERSION,
788 .vendor_id = VENDOR_GRIFFIN,
789 .model_id = 0x00f970,
790 .specifier_id = SPECIFIER_1394TA,
791 .version = VERSION_AVC,
792 .driver_data = (kernel_ulong_t)&griffin_firewave,
793 },
794 {
795 .match_flags = IEEE1394_MATCH_VENDOR_ID |
796 IEEE1394_MATCH_MODEL_ID |
797 IEEE1394_MATCH_SPECIFIER_ID |
798 IEEE1394_MATCH_VERSION,
799 .vendor_id = VENDOR_LACIE,
800 .model_id = 0x00f970,
801 .specifier_id = SPECIFIER_1394TA,
802 .version = VERSION_AVC,
803 .driver_data = (kernel_ulong_t)&lacie_speakers,
804 },
805 { }
806 };
807 MODULE_DEVICE_TABLE(ieee1394, fwspk_id_table);
808
809 static struct fw_driver fwspk_driver = {
810 .driver = {
811 .owner = THIS_MODULE,
812 .name = KBUILD_MODNAME,
813 .bus = &fw_bus_type,
814 },
815 .probe = fwspk_probe,
816 .update = fwspk_bus_reset,
817 .remove = fwspk_remove,
818 .id_table = fwspk_id_table,
819 };
820
821 static int __init alsa_fwspk_init(void)
822 {
823 return driver_register(&fwspk_driver.driver);
824 }
825
826 static void __exit alsa_fwspk_exit(void)
827 {
828 driver_unregister(&fwspk_driver.driver);
829 }
830
831 module_init(alsa_fwspk_init);
832 module_exit(alsa_fwspk_exit);
Linux with added FPC-III support