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