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_stream stream;
55 bool mute;
56 s16 volume[6];
57 s16 volume_min;
58 s16 volume_max;
59 };
60
61 MODULE_DESCRIPTION("FireWire speakers driver");
62 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
63 MODULE_LICENSE("GPL v2");
64
firewave_rate_constraint(struct snd_pcm_hw_params * params,struct snd_pcm_hw_rule * rule)65 static 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
firewave_channels_constraint(struct snd_pcm_hw_params * params,struct snd_pcm_hw_rule * rule)80 static 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
firewave_constraints(struct snd_pcm_runtime * runtime)95 static 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
lacie_speakers_constraints(struct snd_pcm_runtime * runtime)129 static 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
fwspk_open(struct snd_pcm_substream * substream)140 static 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 = amdtp_stream_add_pcm_hw_constraints(&fwspk->stream, runtime);
171 if (err < 0)
172 return err;
173
174 return 0;
175 }
176
fwspk_close(struct snd_pcm_substream * substream)177 static int fwspk_close(struct snd_pcm_substream *substream)
178 {
179 return 0;
180 }
181
fwspk_stop_stream(struct fwspk * fwspk)182 static void fwspk_stop_stream(struct fwspk *fwspk)
183 {
184 if (amdtp_stream_running(&fwspk->stream)) {
185 amdtp_stream_stop(&fwspk->stream);
186 cmp_connection_break(&fwspk->connection);
187 }
188 }
189
fwspk_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)190 static int fwspk_hw_params(struct snd_pcm_substream *substream,
191 struct snd_pcm_hw_params *hw_params)
192 {
193 struct fwspk *fwspk = substream->private_data;
194 int err;
195
196 mutex_lock(&fwspk->mutex);
197 fwspk_stop_stream(fwspk);
198 mutex_unlock(&fwspk->mutex);
199
200 err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
201 params_buffer_bytes(hw_params));
202 if (err < 0)
203 goto error;
204
205 amdtp_stream_set_parameters(&fwspk->stream,
206 params_rate(hw_params),
207 params_channels(hw_params),
208 0);
209
210 amdtp_stream_set_pcm_format(&fwspk->stream,
211 params_format(hw_params));
212
213 err = avc_general_set_sig_fmt(fwspk->unit, params_rate(hw_params),
214 AVC_GENERAL_PLUG_DIR_IN, 0);
215 if (err < 0) {
216 dev_err(&fwspk->unit->device, "failed to set sample rate\n");
217 goto err_buffer;
218 }
219
220 return 0;
221
222 err_buffer:
223 snd_pcm_lib_free_vmalloc_buffer(substream);
224 error:
225 return err;
226 }
227
fwspk_hw_free(struct snd_pcm_substream * substream)228 static int fwspk_hw_free(struct snd_pcm_substream *substream)
229 {
230 struct fwspk *fwspk = substream->private_data;
231
232 mutex_lock(&fwspk->mutex);
233 fwspk_stop_stream(fwspk);
234 mutex_unlock(&fwspk->mutex);
235
236 return snd_pcm_lib_free_vmalloc_buffer(substream);
237 }
238
fwspk_prepare(struct snd_pcm_substream * substream)239 static int fwspk_prepare(struct snd_pcm_substream *substream)
240 {
241 struct fwspk *fwspk = substream->private_data;
242 int err;
243
244 mutex_lock(&fwspk->mutex);
245
246 if (amdtp_streaming_error(&fwspk->stream))
247 fwspk_stop_stream(fwspk);
248
249 if (!amdtp_stream_running(&fwspk->stream)) {
250 err = cmp_connection_establish(&fwspk->connection,
251 amdtp_stream_get_max_payload(&fwspk->stream));
252 if (err < 0)
253 goto err_mutex;
254
255 err = amdtp_stream_start(&fwspk->stream,
256 fwspk->connection.resources.channel,
257 fwspk->connection.speed);
258 if (err < 0)
259 goto err_connection;
260 }
261
262 mutex_unlock(&fwspk->mutex);
263
264 amdtp_stream_pcm_prepare(&fwspk->stream);
265
266 return 0;
267
268 err_connection:
269 cmp_connection_break(&fwspk->connection);
270 err_mutex:
271 mutex_unlock(&fwspk->mutex);
272
273 return err;
274 }
275
fwspk_trigger(struct snd_pcm_substream * substream,int cmd)276 static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd)
277 {
278 struct fwspk *fwspk = substream->private_data;
279 struct snd_pcm_substream *pcm;
280
281 switch (cmd) {
282 case SNDRV_PCM_TRIGGER_START:
283 pcm = substream;
284 break;
285 case SNDRV_PCM_TRIGGER_STOP:
286 pcm = NULL;
287 break;
288 default:
289 return -EINVAL;
290 }
291 amdtp_stream_pcm_trigger(&fwspk->stream, pcm);
292 return 0;
293 }
294
fwspk_pointer(struct snd_pcm_substream * substream)295 static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream)
296 {
297 struct fwspk *fwspk = substream->private_data;
298
299 return amdtp_stream_pcm_pointer(&fwspk->stream);
300 }
301
fwspk_create_pcm(struct fwspk * fwspk)302 static int fwspk_create_pcm(struct fwspk *fwspk)
303 {
304 static struct snd_pcm_ops ops = {
305 .open = fwspk_open,
306 .close = fwspk_close,
307 .ioctl = snd_pcm_lib_ioctl,
308 .hw_params = fwspk_hw_params,
309 .hw_free = fwspk_hw_free,
310 .prepare = fwspk_prepare,
311 .trigger = fwspk_trigger,
312 .pointer = fwspk_pointer,
313 .page = snd_pcm_lib_get_vmalloc_page,
314 .mmap = snd_pcm_lib_mmap_vmalloc,
315 };
316 struct snd_pcm *pcm;
317 int err;
318
319 err = snd_pcm_new(fwspk->card, "OXFW970", 0, 1, 0, &pcm);
320 if (err < 0)
321 return err;
322 pcm->private_data = fwspk;
323 strcpy(pcm->name, fwspk->device_info->short_name);
324 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &ops);
325 return 0;
326 }
327
328 enum control_action { CTL_READ, CTL_WRITE };
329 enum control_attribute {
330 CTL_MIN = 0x02,
331 CTL_MAX = 0x03,
332 CTL_CURRENT = 0x10,
333 };
334
fwspk_mute_command(struct fwspk * fwspk,bool * value,enum control_action action)335 static int fwspk_mute_command(struct fwspk *fwspk, bool *value,
336 enum control_action action)
337 {
338 u8 *buf;
339 u8 response_ok;
340 int err;
341
342 buf = kmalloc(11, GFP_KERNEL);
343 if (!buf)
344 return -ENOMEM;
345
346 if (action == CTL_READ) {
347 buf[0] = 0x01; /* AV/C, STATUS */
348 response_ok = 0x0c; /* STABLE */
349 } else {
350 buf[0] = 0x00; /* AV/C, CONTROL */
351 response_ok = 0x09; /* ACCEPTED */
352 }
353 buf[1] = 0x08; /* audio unit 0 */
354 buf[2] = 0xb8; /* FUNCTION BLOCK */
355 buf[3] = 0x81; /* function block type: feature */
356 buf[4] = fwspk->device_info->mute_fb_id; /* function block ID */
357 buf[5] = 0x10; /* control attribute: current */
358 buf[6] = 0x02; /* selector length */
359 buf[7] = 0x00; /* audio channel number */
360 buf[8] = 0x01; /* control selector: mute */
361 buf[9] = 0x01; /* control data length */
362 if (action == CTL_READ)
363 buf[10] = 0xff;
364 else
365 buf[10] = *value ? 0x70 : 0x60;
366
367 err = fcp_avc_transaction(fwspk->unit, buf, 11, buf, 11, 0x3fe);
368 if (err < 0)
369 goto error;
370 if (err < 11) {
371 dev_err(&fwspk->unit->device, "short FCP response\n");
372 err = -EIO;
373 goto error;
374 }
375 if (buf[0] != response_ok) {
376 dev_err(&fwspk->unit->device, "mute command failed\n");
377 err = -EIO;
378 goto error;
379 }
380 if (action == CTL_READ)
381 *value = buf[10] == 0x70;
382
383 err = 0;
384
385 error:
386 kfree(buf);
387
388 return err;
389 }
390
fwspk_volume_command(struct fwspk * fwspk,s16 * value,unsigned int channel,enum control_attribute attribute,enum control_action action)391 static int fwspk_volume_command(struct fwspk *fwspk, s16 *value,
392 unsigned int channel,
393 enum control_attribute attribute,
394 enum control_action action)
395 {
396 u8 *buf;
397 u8 response_ok;
398 int err;
399
400 buf = kmalloc(12, GFP_KERNEL);
401 if (!buf)
402 return -ENOMEM;
403
404 if (action == CTL_READ) {
405 buf[0] = 0x01; /* AV/C, STATUS */
406 response_ok = 0x0c; /* STABLE */
407 } else {
408 buf[0] = 0x00; /* AV/C, CONTROL */
409 response_ok = 0x09; /* ACCEPTED */
410 }
411 buf[1] = 0x08; /* audio unit 0 */
412 buf[2] = 0xb8; /* FUNCTION BLOCK */
413 buf[3] = 0x81; /* function block type: feature */
414 buf[4] = fwspk->device_info->volume_fb_id; /* function block ID */
415 buf[5] = attribute; /* control attribute */
416 buf[6] = 0x02; /* selector length */
417 buf[7] = channel; /* audio channel number */
418 buf[8] = 0x02; /* control selector: volume */
419 buf[9] = 0x02; /* control data length */
420 if (action == CTL_READ) {
421 buf[10] = 0xff;
422 buf[11] = 0xff;
423 } else {
424 buf[10] = *value >> 8;
425 buf[11] = *value;
426 }
427
428 err = fcp_avc_transaction(fwspk->unit, buf, 12, buf, 12, 0x3fe);
429 if (err < 0)
430 goto error;
431 if (err < 12) {
432 dev_err(&fwspk->unit->device, "short FCP response\n");
433 err = -EIO;
434 goto error;
435 }
436 if (buf[0] != response_ok) {
437 dev_err(&fwspk->unit->device, "volume command failed\n");
438 err = -EIO;
439 goto error;
440 }
441 if (action == CTL_READ)
442 *value = (buf[10] << 8) | buf[11];
443
444 err = 0;
445
446 error:
447 kfree(buf);
448
449 return err;
450 }
451
fwspk_mute_get(struct snd_kcontrol * control,struct snd_ctl_elem_value * value)452 static int fwspk_mute_get(struct snd_kcontrol *control,
453 struct snd_ctl_elem_value *value)
454 {
455 struct fwspk *fwspk = control->private_data;
456
457 value->value.integer.value[0] = !fwspk->mute;
458
459 return 0;
460 }
461
fwspk_mute_put(struct snd_kcontrol * control,struct snd_ctl_elem_value * value)462 static int fwspk_mute_put(struct snd_kcontrol *control,
463 struct snd_ctl_elem_value *value)
464 {
465 struct fwspk *fwspk = control->private_data;
466 bool mute;
467 int err;
468
469 mute = !value->value.integer.value[0];
470
471 if (mute == fwspk->mute)
472 return 0;
473
474 err = fwspk_mute_command(fwspk, &mute, CTL_WRITE);
475 if (err < 0)
476 return err;
477 fwspk->mute = mute;
478
479 return 1;
480 }
481
fwspk_volume_info(struct snd_kcontrol * control,struct snd_ctl_elem_info * info)482 static int fwspk_volume_info(struct snd_kcontrol *control,
483 struct snd_ctl_elem_info *info)
484 {
485 struct fwspk *fwspk = control->private_data;
486
487 info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
488 info->count = fwspk->device_info->mixer_channels;
489 info->value.integer.min = fwspk->volume_min;
490 info->value.integer.max = fwspk->volume_max;
491
492 return 0;
493 }
494
495 static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 };
496
fwspk_volume_get(struct snd_kcontrol * control,struct snd_ctl_elem_value * value)497 static int fwspk_volume_get(struct snd_kcontrol *control,
498 struct snd_ctl_elem_value *value)
499 {
500 struct fwspk *fwspk = control->private_data;
501 unsigned int i;
502
503 for (i = 0; i < fwspk->device_info->mixer_channels; ++i)
504 value->value.integer.value[channel_map[i]] = fwspk->volume[i];
505
506 return 0;
507 }
508
fwspk_volume_put(struct snd_kcontrol * control,struct snd_ctl_elem_value * value)509 static int fwspk_volume_put(struct snd_kcontrol *control,
510 struct snd_ctl_elem_value *value)
511 {
512 struct fwspk *fwspk = control->private_data;
513 unsigned int i, changed_channels;
514 bool equal_values = true;
515 s16 volume;
516 int err;
517
518 for (i = 0; i < fwspk->device_info->mixer_channels; ++i) {
519 if (value->value.integer.value[i] < fwspk->volume_min ||
520 value->value.integer.value[i] > fwspk->volume_max)
521 return -EINVAL;
522 if (value->value.integer.value[i] !=
523 value->value.integer.value[0])
524 equal_values = false;
525 }
526
527 changed_channels = 0;
528 for (i = 0; i < fwspk->device_info->mixer_channels; ++i)
529 if (value->value.integer.value[channel_map[i]] !=
530 fwspk->volume[i])
531 changed_channels |= 1 << (i + 1);
532
533 if (equal_values && changed_channels != 0)
534 changed_channels = 1 << 0;
535
536 for (i = 0; i <= fwspk->device_info->mixer_channels; ++i) {
537 volume = value->value.integer.value[channel_map[i ? i - 1 : 0]];
538 if (changed_channels & (1 << i)) {
539 err = fwspk_volume_command(fwspk, &volume, i,
540 CTL_CURRENT, CTL_WRITE);
541 if (err < 0)
542 return err;
543 }
544 if (i > 0)
545 fwspk->volume[i - 1] = volume;
546 }
547
548 return changed_channels != 0;
549 }
550
fwspk_create_mixer(struct fwspk * fwspk)551 static int fwspk_create_mixer(struct fwspk *fwspk)
552 {
553 static const struct snd_kcontrol_new controls[] = {
554 {
555 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
556 .name = "PCM Playback Switch",
557 .info = snd_ctl_boolean_mono_info,
558 .get = fwspk_mute_get,
559 .put = fwspk_mute_put,
560 },
561 {
562 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
563 .name = "PCM Playback Volume",
564 .info = fwspk_volume_info,
565 .get = fwspk_volume_get,
566 .put = fwspk_volume_put,
567 },
568 };
569 unsigned int i, first_ch;
570 int err;
571
572 err = fwspk_volume_command(fwspk, &fwspk->volume_min,
573 0, CTL_MIN, CTL_READ);
574 if (err < 0)
575 return err;
576 err = fwspk_volume_command(fwspk, &fwspk->volume_max,
577 0, CTL_MAX, CTL_READ);
578 if (err < 0)
579 return err;
580
581 err = fwspk_mute_command(fwspk, &fwspk->mute, CTL_READ);
582 if (err < 0)
583 return err;
584
585 first_ch = fwspk->device_info->mixer_channels == 1 ? 0 : 1;
586 for (i = 0; i < fwspk->device_info->mixer_channels; ++i) {
587 err = fwspk_volume_command(fwspk, &fwspk->volume[i],
588 first_ch + i, CTL_CURRENT, CTL_READ);
589 if (err < 0)
590 return err;
591 }
592
593 for (i = 0; i < ARRAY_SIZE(controls); ++i) {
594 err = snd_ctl_add(fwspk->card,
595 snd_ctl_new1(&controls[i], fwspk));
596 if (err < 0)
597 return err;
598 }
599
600 return 0;
601 }
602
fwspk_read_firmware_version(struct fw_unit * unit)603 static u32 fwspk_read_firmware_version(struct fw_unit *unit)
604 {
605 __be32 data;
606 int err;
607
608 err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
609 OXFORD_FIRMWARE_ID_ADDRESS, &data, 4, 0);
610 return err >= 0 ? be32_to_cpu(data) : 0;
611 }
612
fwspk_card_free(struct snd_card * card)613 static void fwspk_card_free(struct snd_card *card)
614 {
615 struct fwspk *fwspk = card->private_data;
616
617 amdtp_stream_destroy(&fwspk->stream);
618 cmp_connection_destroy(&fwspk->connection);
619 fw_unit_put(fwspk->unit);
620 mutex_destroy(&fwspk->mutex);
621 }
622
fwspk_probe(struct fw_unit * unit,const struct ieee1394_device_id * id)623 static int fwspk_probe(struct fw_unit *unit,
624 const struct ieee1394_device_id *id)
625 {
626 struct fw_device *fw_dev = fw_parent_device(unit);
627 struct snd_card *card;
628 struct fwspk *fwspk;
629 u32 firmware;
630 int err;
631
632 err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
633 sizeof(*fwspk), &card);
634 if (err < 0)
635 return err;
636
637 fwspk = card->private_data;
638 fwspk->card = card;
639 mutex_init(&fwspk->mutex);
640 fwspk->unit = fw_unit_get(unit);
641 fwspk->device_info = (const struct device_info *)id->driver_data;
642
643 err = cmp_connection_init(&fwspk->connection, unit, CMP_INPUT, 0);
644 if (err < 0)
645 goto err_unit;
646
647 err = amdtp_stream_init(&fwspk->stream, unit, AMDTP_OUT_STREAM,
648 CIP_NONBLOCKING);
649 if (err < 0)
650 goto err_connection;
651
652 card->private_free = fwspk_card_free;
653
654 strcpy(card->driver, fwspk->device_info->driver_name);
655 strcpy(card->shortname, fwspk->device_info->short_name);
656 firmware = fwspk_read_firmware_version(unit);
657 snprintf(card->longname, sizeof(card->longname),
658 "%s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
659 fwspk->device_info->long_name,
660 firmware >> 20, firmware & 0xffff,
661 fw_dev->config_rom[3], fw_dev->config_rom[4],
662 dev_name(&unit->device), 100 << fw_dev->max_speed);
663 strcpy(card->mixername, "OXFW970");
664
665 err = fwspk_create_pcm(fwspk);
666 if (err < 0)
667 goto error;
668
669 err = fwspk_create_mixer(fwspk);
670 if (err < 0)
671 goto error;
672
673 err = snd_card_register(card);
674 if (err < 0)
675 goto error;
676
677 dev_set_drvdata(&unit->device, fwspk);
678
679 return 0;
680
681 err_connection:
682 cmp_connection_destroy(&fwspk->connection);
683 err_unit:
684 fw_unit_put(fwspk->unit);
685 mutex_destroy(&fwspk->mutex);
686 error:
687 snd_card_free(card);
688 return err;
689 }
690
fwspk_bus_reset(struct fw_unit * unit)691 static void fwspk_bus_reset(struct fw_unit *unit)
692 {
693 struct fwspk *fwspk = dev_get_drvdata(&unit->device);
694
695 fcp_bus_reset(fwspk->unit);
696
697 if (cmp_connection_update(&fwspk->connection) < 0) {
698 amdtp_stream_pcm_abort(&fwspk->stream);
699 mutex_lock(&fwspk->mutex);
700 fwspk_stop_stream(fwspk);
701 mutex_unlock(&fwspk->mutex);
702 return;
703 }
704
705 amdtp_stream_update(&fwspk->stream);
706 }
707
fwspk_remove(struct fw_unit * unit)708 static void fwspk_remove(struct fw_unit *unit)
709 {
710 struct fwspk *fwspk = dev_get_drvdata(&unit->device);
711
712 amdtp_stream_pcm_abort(&fwspk->stream);
713 snd_card_disconnect(fwspk->card);
714
715 mutex_lock(&fwspk->mutex);
716 fwspk_stop_stream(fwspk);
717 mutex_unlock(&fwspk->mutex);
718
719 snd_card_free_when_closed(fwspk->card);
720 }
721
722 static const struct device_info griffin_firewave = {
723 .driver_name = "FireWave",
724 .short_name = "FireWave",
725 .long_name = "Griffin FireWave Surround",
726 .pcm_constraints = firewave_constraints,
727 .mixer_channels = 6,
728 .mute_fb_id = 0x01,
729 .volume_fb_id = 0x02,
730 };
731
732 static const struct device_info lacie_speakers = {
733 .driver_name = "FWSpeakers",
734 .short_name = "FireWire Speakers",
735 .long_name = "LaCie FireWire Speakers",
736 .pcm_constraints = lacie_speakers_constraints,
737 .mixer_channels = 1,
738 .mute_fb_id = 0x01,
739 .volume_fb_id = 0x01,
740 };
741
742 static const struct ieee1394_device_id fwspk_id_table[] = {
743 {
744 .match_flags = IEEE1394_MATCH_VENDOR_ID |
745 IEEE1394_MATCH_MODEL_ID |
746 IEEE1394_MATCH_SPECIFIER_ID |
747 IEEE1394_MATCH_VERSION,
748 .vendor_id = VENDOR_GRIFFIN,
749 .model_id = 0x00f970,
750 .specifier_id = SPECIFIER_1394TA,
751 .version = VERSION_AVC,
752 .driver_data = (kernel_ulong_t)&griffin_firewave,
753 },
754 {
755 .match_flags = IEEE1394_MATCH_VENDOR_ID |
756 IEEE1394_MATCH_MODEL_ID |
757 IEEE1394_MATCH_SPECIFIER_ID |
758 IEEE1394_MATCH_VERSION,
759 .vendor_id = VENDOR_LACIE,
760 .model_id = 0x00f970,
761 .specifier_id = SPECIFIER_1394TA,
762 .version = VERSION_AVC,
763 .driver_data = (kernel_ulong_t)&lacie_speakers,
764 },
765 { }
766 };
767 MODULE_DEVICE_TABLE(ieee1394, fwspk_id_table);
768
769 static struct fw_driver fwspk_driver = {
770 .driver = {
771 .owner = THIS_MODULE,
772 .name = KBUILD_MODNAME,
773 .bus = &fw_bus_type,
774 },
775 .probe = fwspk_probe,
776 .update = fwspk_bus_reset,
777 .remove = fwspk_remove,
778 .id_table = fwspk_id_table,
779 };
780
alsa_fwspk_init(void)781 static int __init alsa_fwspk_init(void)
782 {
783 return driver_register(&fwspk_driver.driver);
784 }
785
alsa_fwspk_exit(void)786 static void __exit alsa_fwspk_exit(void)
787 {
788 driver_unregister(&fwspk_driver.driver);
789 }
790
791 module_init(alsa_fwspk_init);
792 module_exit(alsa_fwspk_exit);
793