Commit | Line | Data |
---|---|---|
1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
e8e8babf | 2 | /* |
e8e8babf DM |
3 | */ |
4 | ||
5 | ||
6 | #include <linux/init.h> | |
7 | #include <linux/slab.h> | |
8 | #include <linux/usb.h> | |
9 | #include <linux/usb/audio.h> | |
10 | #include <linux/usb/audio-v2.h> | |
9a2fe9b8 | 11 | #include <linux/usb/audio-v3.h> |
e8e8babf DM |
12 | |
13 | #include <sound/core.h> | |
14 | #include <sound/pcm.h> | |
04324ccc TI |
15 | #include <sound/control.h> |
16 | #include <sound/tlv.h> | |
e8e8babf DM |
17 | |
18 | #include "usbaudio.h" | |
19 | #include "card.h" | |
20 | #include "proc.h" | |
21 | #include "quirks.h" | |
22 | #include "endpoint.h" | |
e8e8babf DM |
23 | #include "pcm.h" |
24 | #include "helper.h" | |
25 | #include "format.h" | |
26 | #include "clock.h" | |
27 | #include "stream.h" | |
7edf3b5e | 28 | #include "power.h" |
66354f18 | 29 | #include "media.h" |
e8e8babf | 30 | |
c1ae5e7f TI |
31 | static void audioformat_free(struct audioformat *fp) |
32 | { | |
33 | list_del(&fp->list); /* unlink for avoiding double-free */ | |
34 | kfree(fp->rate_table); | |
35 | kfree(fp->chmap); | |
36 | kfree(fp); | |
37 | } | |
38 | ||
e8e8babf DM |
39 | /* |
40 | * free a substream | |
41 | */ | |
42 | static void free_substream(struct snd_usb_substream *subs) | |
43 | { | |
88766f04 | 44 | struct audioformat *fp, *n; |
e8e8babf DM |
45 | |
46 | if (!subs->num_formats) | |
47 | return; /* not initialized */ | |
c1ae5e7f TI |
48 | list_for_each_entry_safe(fp, n, &subs->fmt_list, list) |
49 | audioformat_free(fp); | |
e8e8babf | 50 | kfree(subs->rate_list.list); |
7edf3b5e | 51 | kfree(subs->str_pd); |
66354f18 | 52 | snd_media_stream_delete(subs); |
e8e8babf DM |
53 | } |
54 | ||
55 | ||
56 | /* | |
57 | * free a usb stream instance | |
58 | */ | |
59 | static void snd_usb_audio_stream_free(struct snd_usb_stream *stream) | |
60 | { | |
61 | free_substream(&stream->substream[0]); | |
62 | free_substream(&stream->substream[1]); | |
63 | list_del(&stream->list); | |
64 | kfree(stream); | |
65 | } | |
66 | ||
67 | static void snd_usb_audio_pcm_free(struct snd_pcm *pcm) | |
68 | { | |
69 | struct snd_usb_stream *stream = pcm->private_data; | |
70 | if (stream) { | |
71 | stream->pcm = NULL; | |
72 | snd_usb_audio_stream_free(stream); | |
73 | } | |
74 | } | |
75 | ||
edcd3633 DM |
76 | /* |
77 | * initialize the substream instance. | |
78 | */ | |
79 | ||
80 | static void snd_usb_init_substream(struct snd_usb_stream *as, | |
81 | int stream, | |
7edf3b5e JS |
82 | struct audioformat *fp, |
83 | struct snd_usb_power_domain *pd) | |
edcd3633 DM |
84 | { |
85 | struct snd_usb_substream *subs = &as->substream[stream]; | |
86 | ||
87 | INIT_LIST_HEAD(&subs->fmt_list); | |
88 | spin_lock_init(&subs->lock); | |
89 | ||
90 | subs->stream = as; | |
91 | subs->direction = stream; | |
92 | subs->dev = as->chip->dev; | |
93 | subs->txfr_quirk = as->chip->txfr_quirk; | |
e0570446 | 94 | subs->tx_length_quirk = as->chip->tx_length_quirk; |
978520b7 | 95 | subs->speed = snd_usb_get_speed(subs->dev); |
1539d4f8 | 96 | subs->pkt_offset_adj = 0; |
1b7ecc24 | 97 | subs->stream_offset_adj = 0; |
edcd3633 DM |
98 | |
99 | snd_usb_set_pcm_ops(as->pcm, stream); | |
100 | ||
101 | list_add_tail(&fp->list, &subs->fmt_list); | |
102 | subs->formats |= fp->formats; | |
103 | subs->num_formats++; | |
104 | subs->fmt_type = fp->fmt_type; | |
8260ef07 | 105 | subs->ep_num = fp->endpoint; |
04324ccc TI |
106 | if (fp->channels > subs->channels_max) |
107 | subs->channels_max = fp->channels; | |
f274baa4 | 108 | |
a0a4959e | 109 | if (pd) { |
7edf3b5e | 110 | subs->str_pd = pd; |
a0a4959e JS |
111 | /* Initialize Power Domain to idle status D1 */ |
112 | snd_usb_power_domain_set(subs->stream->chip, pd, | |
113 | UAC3_PD_STATE_D1); | |
114 | } | |
7edf3b5e | 115 | |
f274baa4 | 116 | snd_usb_preallocate_buffer(subs); |
04324ccc TI |
117 | } |
118 | ||
119 | /* kctl callbacks for usb-audio channel maps */ | |
120 | static int usb_chmap_ctl_info(struct snd_kcontrol *kcontrol, | |
121 | struct snd_ctl_elem_info *uinfo) | |
122 | { | |
123 | struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); | |
124 | struct snd_usb_substream *subs = info->private_data; | |
125 | ||
126 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
127 | uinfo->count = subs->channels_max; | |
128 | uinfo->value.integer.min = 0; | |
129 | uinfo->value.integer.max = SNDRV_CHMAP_LAST; | |
130 | return 0; | |
131 | } | |
132 | ||
133 | /* check whether a duplicated entry exists in the audiofmt list */ | |
134 | static bool have_dup_chmap(struct snd_usb_substream *subs, | |
135 | struct audioformat *fp) | |
136 | { | |
f67d71ae | 137 | struct audioformat *prev = fp; |
04324ccc | 138 | |
f67d71ae | 139 | list_for_each_entry_continue_reverse(prev, &subs->fmt_list, list) { |
04324ccc TI |
140 | if (prev->chmap && |
141 | !memcmp(prev->chmap, fp->chmap, sizeof(*fp->chmap))) | |
142 | return true; | |
143 | } | |
144 | return false; | |
145 | } | |
146 | ||
147 | static int usb_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag, | |
148 | unsigned int size, unsigned int __user *tlv) | |
149 | { | |
150 | struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); | |
151 | struct snd_usb_substream *subs = info->private_data; | |
152 | struct audioformat *fp; | |
153 | unsigned int __user *dst; | |
154 | int count = 0; | |
155 | ||
156 | if (size < 8) | |
157 | return -ENOMEM; | |
158 | if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv)) | |
159 | return -EFAULT; | |
160 | size -= 8; | |
161 | dst = tlv + 2; | |
162 | list_for_each_entry(fp, &subs->fmt_list, list) { | |
163 | int i, ch_bytes; | |
164 | ||
165 | if (!fp->chmap) | |
166 | continue; | |
167 | if (have_dup_chmap(subs, fp)) | |
168 | continue; | |
169 | /* copy the entry */ | |
170 | ch_bytes = fp->chmap->channels * 4; | |
171 | if (size < 8 + ch_bytes) | |
172 | return -ENOMEM; | |
173 | if (put_user(SNDRV_CTL_TLVT_CHMAP_FIXED, dst) || | |
174 | put_user(ch_bytes, dst + 1)) | |
175 | return -EFAULT; | |
176 | dst += 2; | |
177 | for (i = 0; i < fp->chmap->channels; i++, dst++) { | |
178 | if (put_user(fp->chmap->map[i], dst)) | |
179 | return -EFAULT; | |
180 | } | |
181 | ||
182 | count += 8 + ch_bytes; | |
183 | size -= 8 + ch_bytes; | |
184 | } | |
185 | if (put_user(count, tlv + 1)) | |
186 | return -EFAULT; | |
187 | return 0; | |
188 | } | |
189 | ||
190 | static int usb_chmap_ctl_get(struct snd_kcontrol *kcontrol, | |
191 | struct snd_ctl_elem_value *ucontrol) | |
192 | { | |
193 | struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); | |
194 | struct snd_usb_substream *subs = info->private_data; | |
195 | struct snd_pcm_chmap_elem *chmap = NULL; | |
196 | int i; | |
197 | ||
198 | memset(ucontrol->value.integer.value, 0, | |
199 | sizeof(ucontrol->value.integer.value)); | |
200 | if (subs->cur_audiofmt) | |
201 | chmap = subs->cur_audiofmt->chmap; | |
202 | if (chmap) { | |
203 | for (i = 0; i < chmap->channels; i++) | |
204 | ucontrol->value.integer.value[i] = chmap->map[i]; | |
205 | } | |
206 | return 0; | |
207 | } | |
208 | ||
209 | /* create a chmap kctl assigned to the given USB substream */ | |
210 | static int add_chmap(struct snd_pcm *pcm, int stream, | |
211 | struct snd_usb_substream *subs) | |
212 | { | |
213 | struct audioformat *fp; | |
214 | struct snd_pcm_chmap *chmap; | |
215 | struct snd_kcontrol *kctl; | |
216 | int err; | |
217 | ||
218 | list_for_each_entry(fp, &subs->fmt_list, list) | |
219 | if (fp->chmap) | |
220 | goto ok; | |
221 | /* no chmap is found */ | |
222 | return 0; | |
223 | ||
224 | ok: | |
225 | err = snd_pcm_add_chmap_ctls(pcm, stream, NULL, 0, 0, &chmap); | |
226 | if (err < 0) | |
227 | return err; | |
228 | ||
229 | /* override handlers */ | |
230 | chmap->private_data = subs; | |
231 | kctl = chmap->kctl; | |
232 | kctl->info = usb_chmap_ctl_info; | |
233 | kctl->get = usb_chmap_ctl_get; | |
234 | kctl->tlv.c = usb_chmap_ctl_tlv; | |
235 | ||
236 | return 0; | |
237 | } | |
238 | ||
239 | /* convert from USB ChannelConfig bits to ALSA chmap element */ | |
240 | static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits, | |
241 | int protocol) | |
242 | { | |
a01df925 | 243 | static const unsigned int uac1_maps[] = { |
04324ccc TI |
244 | SNDRV_CHMAP_FL, /* left front */ |
245 | SNDRV_CHMAP_FR, /* right front */ | |
246 | SNDRV_CHMAP_FC, /* center front */ | |
247 | SNDRV_CHMAP_LFE, /* LFE */ | |
248 | SNDRV_CHMAP_SL, /* left surround */ | |
249 | SNDRV_CHMAP_SR, /* right surround */ | |
250 | SNDRV_CHMAP_FLC, /* left of center */ | |
251 | SNDRV_CHMAP_FRC, /* right of center */ | |
252 | SNDRV_CHMAP_RC, /* surround */ | |
253 | SNDRV_CHMAP_SL, /* side left */ | |
254 | SNDRV_CHMAP_SR, /* side right */ | |
255 | SNDRV_CHMAP_TC, /* top */ | |
256 | 0 /* terminator */ | |
257 | }; | |
a01df925 | 258 | static const unsigned int uac2_maps[] = { |
04324ccc TI |
259 | SNDRV_CHMAP_FL, /* front left */ |
260 | SNDRV_CHMAP_FR, /* front right */ | |
261 | SNDRV_CHMAP_FC, /* front center */ | |
262 | SNDRV_CHMAP_LFE, /* LFE */ | |
263 | SNDRV_CHMAP_RL, /* back left */ | |
264 | SNDRV_CHMAP_RR, /* back right */ | |
265 | SNDRV_CHMAP_FLC, /* front left of center */ | |
266 | SNDRV_CHMAP_FRC, /* front right of center */ | |
267 | SNDRV_CHMAP_RC, /* back center */ | |
268 | SNDRV_CHMAP_SL, /* side left */ | |
269 | SNDRV_CHMAP_SR, /* side right */ | |
270 | SNDRV_CHMAP_TC, /* top center */ | |
271 | SNDRV_CHMAP_TFL, /* top front left */ | |
272 | SNDRV_CHMAP_TFC, /* top front center */ | |
273 | SNDRV_CHMAP_TFR, /* top front right */ | |
274 | SNDRV_CHMAP_TRL, /* top back left */ | |
275 | SNDRV_CHMAP_TRC, /* top back center */ | |
276 | SNDRV_CHMAP_TRR, /* top back right */ | |
277 | SNDRV_CHMAP_TFLC, /* top front left of center */ | |
278 | SNDRV_CHMAP_TFRC, /* top front right of center */ | |
279 | SNDRV_CHMAP_LLFE, /* left LFE */ | |
280 | SNDRV_CHMAP_RLFE, /* right LFE */ | |
281 | SNDRV_CHMAP_TSL, /* top side left */ | |
282 | SNDRV_CHMAP_TSR, /* top side right */ | |
283 | SNDRV_CHMAP_BC, /* bottom center */ | |
71373fdd AH |
284 | SNDRV_CHMAP_RLC, /* back left of center */ |
285 | SNDRV_CHMAP_RRC, /* back right of center */ | |
04324ccc TI |
286 | 0 /* terminator */ |
287 | }; | |
288 | struct snd_pcm_chmap_elem *chmap; | |
289 | const unsigned int *maps; | |
290 | int c; | |
291 | ||
04324ccc TI |
292 | if (channels > ARRAY_SIZE(chmap->map)) |
293 | return NULL; | |
294 | ||
295 | chmap = kzalloc(sizeof(*chmap), GFP_KERNEL); | |
296 | if (!chmap) | |
297 | return NULL; | |
298 | ||
299 | maps = protocol == UAC_VERSION_2 ? uac2_maps : uac1_maps; | |
300 | chmap->channels = channels; | |
301 | c = 0; | |
0dca01c3 DH |
302 | |
303 | if (bits) { | |
304 | for (; bits && *maps; maps++, bits >>= 1) | |
305 | if (bits & 1) | |
306 | chmap->map[c++] = *maps; | |
307 | } else { | |
308 | /* If we're missing wChannelConfig, then guess something | |
309 | to make sure the channel map is not skipped entirely */ | |
310 | if (channels == 1) | |
311 | chmap->map[c++] = SNDRV_CHMAP_MONO; | |
312 | else | |
313 | for (; c < channels && *maps; maps++) | |
314 | chmap->map[c++] = *maps; | |
04324ccc TI |
315 | } |
316 | ||
317 | for (; c < channels; c++) | |
318 | chmap->map[c] = SNDRV_CHMAP_UNKNOWN; | |
319 | ||
320 | return chmap; | |
edcd3633 | 321 | } |
e8e8babf | 322 | |
9a2fe9b8 RB |
323 | /* UAC3 device stores channels information in Cluster Descriptors */ |
324 | static struct | |
325 | snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor | |
326 | *cluster) | |
327 | { | |
328 | unsigned int channels = cluster->bNrChannels; | |
329 | struct snd_pcm_chmap_elem *chmap; | |
330 | void *p = cluster; | |
331 | int len, c; | |
332 | ||
333 | if (channels > ARRAY_SIZE(chmap->map)) | |
334 | return NULL; | |
335 | ||
336 | chmap = kzalloc(sizeof(*chmap), GFP_KERNEL); | |
337 | if (!chmap) | |
338 | return NULL; | |
339 | ||
340 | len = le16_to_cpu(cluster->wLength); | |
341 | c = 0; | |
342 | p += sizeof(struct uac3_cluster_header_descriptor); | |
343 | ||
344 | while (((p - (void *)cluster) < len) && (c < channels)) { | |
345 | struct uac3_cluster_segment_descriptor *cs_desc = p; | |
346 | u16 cs_len; | |
347 | u8 cs_type; | |
348 | ||
349 | cs_len = le16_to_cpu(cs_desc->wLength); | |
350 | cs_type = cs_desc->bSegmentType; | |
351 | ||
352 | if (cs_type == UAC3_CHANNEL_INFORMATION) { | |
353 | struct uac3_cluster_information_segment_descriptor *is = p; | |
354 | unsigned char map; | |
355 | ||
356 | /* | |
357 | * TODO: this conversion is not complete, update it | |
358 | * after adding UAC3 values to asound.h | |
359 | */ | |
8e0428a7 | 360 | switch (is->bChRelationship) { |
9a2fe9b8 RB |
361 | case UAC3_CH_MONO: |
362 | map = SNDRV_CHMAP_MONO; | |
363 | break; | |
364 | case UAC3_CH_LEFT: | |
365 | case UAC3_CH_FRONT_LEFT: | |
366 | case UAC3_CH_HEADPHONE_LEFT: | |
367 | map = SNDRV_CHMAP_FL; | |
368 | break; | |
369 | case UAC3_CH_RIGHT: | |
370 | case UAC3_CH_FRONT_RIGHT: | |
371 | case UAC3_CH_HEADPHONE_RIGHT: | |
372 | map = SNDRV_CHMAP_FR; | |
373 | break; | |
374 | case UAC3_CH_FRONT_CENTER: | |
375 | map = SNDRV_CHMAP_FC; | |
376 | break; | |
377 | case UAC3_CH_FRONT_LEFT_OF_CENTER: | |
378 | map = SNDRV_CHMAP_FLC; | |
379 | break; | |
380 | case UAC3_CH_FRONT_RIGHT_OF_CENTER: | |
381 | map = SNDRV_CHMAP_FRC; | |
382 | break; | |
383 | case UAC3_CH_SIDE_LEFT: | |
384 | map = SNDRV_CHMAP_SL; | |
385 | break; | |
386 | case UAC3_CH_SIDE_RIGHT: | |
387 | map = SNDRV_CHMAP_SR; | |
388 | break; | |
389 | case UAC3_CH_BACK_LEFT: | |
390 | map = SNDRV_CHMAP_RL; | |
391 | break; | |
392 | case UAC3_CH_BACK_RIGHT: | |
393 | map = SNDRV_CHMAP_RR; | |
394 | break; | |
395 | case UAC3_CH_BACK_CENTER: | |
396 | map = SNDRV_CHMAP_RC; | |
397 | break; | |
398 | case UAC3_CH_BACK_LEFT_OF_CENTER: | |
399 | map = SNDRV_CHMAP_RLC; | |
400 | break; | |
401 | case UAC3_CH_BACK_RIGHT_OF_CENTER: | |
402 | map = SNDRV_CHMAP_RRC; | |
403 | break; | |
404 | case UAC3_CH_TOP_CENTER: | |
405 | map = SNDRV_CHMAP_TC; | |
406 | break; | |
407 | case UAC3_CH_TOP_FRONT_LEFT: | |
408 | map = SNDRV_CHMAP_TFL; | |
409 | break; | |
410 | case UAC3_CH_TOP_FRONT_RIGHT: | |
411 | map = SNDRV_CHMAP_TFR; | |
412 | break; | |
413 | case UAC3_CH_TOP_FRONT_CENTER: | |
414 | map = SNDRV_CHMAP_TFC; | |
415 | break; | |
416 | case UAC3_CH_TOP_FRONT_LOC: | |
417 | map = SNDRV_CHMAP_TFLC; | |
418 | break; | |
419 | case UAC3_CH_TOP_FRONT_ROC: | |
420 | map = SNDRV_CHMAP_TFRC; | |
421 | break; | |
422 | case UAC3_CH_TOP_SIDE_LEFT: | |
423 | map = SNDRV_CHMAP_TSL; | |
424 | break; | |
425 | case UAC3_CH_TOP_SIDE_RIGHT: | |
426 | map = SNDRV_CHMAP_TSR; | |
427 | break; | |
428 | case UAC3_CH_TOP_BACK_LEFT: | |
429 | map = SNDRV_CHMAP_TRL; | |
430 | break; | |
431 | case UAC3_CH_TOP_BACK_RIGHT: | |
432 | map = SNDRV_CHMAP_TRR; | |
433 | break; | |
434 | case UAC3_CH_TOP_BACK_CENTER: | |
435 | map = SNDRV_CHMAP_TRC; | |
436 | break; | |
437 | case UAC3_CH_BOTTOM_CENTER: | |
438 | map = SNDRV_CHMAP_BC; | |
439 | break; | |
440 | case UAC3_CH_LOW_FREQUENCY_EFFECTS: | |
441 | map = SNDRV_CHMAP_LFE; | |
442 | break; | |
443 | case UAC3_CH_LFE_LEFT: | |
444 | map = SNDRV_CHMAP_LLFE; | |
445 | break; | |
446 | case UAC3_CH_LFE_RIGHT: | |
447 | map = SNDRV_CHMAP_RLFE; | |
448 | break; | |
449 | case UAC3_CH_RELATIONSHIP_UNDEFINED: | |
450 | default: | |
451 | map = SNDRV_CHMAP_UNKNOWN; | |
452 | break; | |
453 | } | |
454 | chmap->map[c++] = map; | |
455 | } | |
456 | p += cs_len; | |
457 | } | |
458 | ||
459 | if (channels < c) | |
460 | pr_err("%s: channel number mismatch\n", __func__); | |
461 | ||
462 | chmap->channels = channels; | |
463 | ||
464 | for (; c < channels; c++) | |
465 | chmap->map[c] = SNDRV_CHMAP_UNKNOWN; | |
466 | ||
467 | return chmap; | |
468 | } | |
469 | ||
e8e8babf DM |
470 | /* |
471 | * add this endpoint to the chip instance. | |
472 | * if a stream with the same endpoint already exists, append to it. | |
836b34a9 VD |
473 | * if not, create a new pcm stream. note, fp is added to the substream |
474 | * fmt_list and will be freed on the chip instance release. do not free | |
475 | * fp or do remove it from the substream fmt_list to avoid double-free. | |
e8e8babf | 476 | */ |
7edf3b5e JS |
477 | static int __snd_usb_add_audio_stream(struct snd_usb_audio *chip, |
478 | int stream, | |
479 | struct audioformat *fp, | |
480 | struct snd_usb_power_domain *pd) | |
481 | ||
e8e8babf | 482 | { |
e8e8babf DM |
483 | struct snd_usb_stream *as; |
484 | struct snd_usb_substream *subs; | |
485 | struct snd_pcm *pcm; | |
486 | int err; | |
487 | ||
88766f04 | 488 | list_for_each_entry(as, &chip->pcm_list, list) { |
e8e8babf DM |
489 | if (as->fmt_type != fp->fmt_type) |
490 | continue; | |
491 | subs = &as->substream[stream]; | |
8260ef07 | 492 | if (subs->ep_num == fp->endpoint) { |
e8e8babf DM |
493 | list_add_tail(&fp->list, &subs->fmt_list); |
494 | subs->num_formats++; | |
495 | subs->formats |= fp->formats; | |
496 | return 0; | |
497 | } | |
498 | } | |
499 | /* look for an empty stream */ | |
88766f04 | 500 | list_for_each_entry(as, &chip->pcm_list, list) { |
e8e8babf DM |
501 | if (as->fmt_type != fp->fmt_type) |
502 | continue; | |
503 | subs = &as->substream[stream]; | |
8260ef07 | 504 | if (subs->ep_num) |
e8e8babf | 505 | continue; |
a4aad563 TI |
506 | if (snd_device_get_state(chip->card, as->pcm) != |
507 | SNDRV_DEV_BUILD) | |
508 | chip->need_delayed_register = true; | |
e8e8babf DM |
509 | err = snd_pcm_new_stream(as->pcm, stream, 1); |
510 | if (err < 0) | |
511 | return err; | |
7edf3b5e | 512 | snd_usb_init_substream(as, stream, fp, pd); |
04324ccc | 513 | return add_chmap(as->pcm, stream, subs); |
e8e8babf DM |
514 | } |
515 | ||
516 | /* create a new pcm */ | |
517 | as = kzalloc(sizeof(*as), GFP_KERNEL); | |
518 | if (!as) | |
519 | return -ENOMEM; | |
520 | as->pcm_index = chip->pcm_devs; | |
521 | as->chip = chip; | |
522 | as->fmt_type = fp->fmt_type; | |
523 | err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs, | |
524 | stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0, | |
525 | stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1, | |
526 | &pcm); | |
527 | if (err < 0) { | |
528 | kfree(as); | |
529 | return err; | |
530 | } | |
531 | as->pcm = pcm; | |
532 | pcm->private_data = as; | |
533 | pcm->private_free = snd_usb_audio_pcm_free; | |
534 | pcm->info_flags = 0; | |
535 | if (chip->pcm_devs > 0) | |
536 | sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs); | |
537 | else | |
538 | strcpy(pcm->name, "USB Audio"); | |
539 | ||
7edf3b5e | 540 | snd_usb_init_substream(as, stream, fp, pd); |
e8e8babf | 541 | |
5ee20bc7 JR |
542 | /* |
543 | * Keep using head insertion for M-Audio Audiophile USB (tm) which has a | |
544 | * fix to swap capture stream order in conf/cards/USB-audio.conf | |
545 | */ | |
546 | if (chip->usb_id == USB_ID(0x0763, 0x2003)) | |
547 | list_add(&as->list, &chip->pcm_list); | |
548 | else | |
549 | list_add_tail(&as->list, &chip->pcm_list); | |
550 | ||
e8e8babf DM |
551 | chip->pcm_devs++; |
552 | ||
553 | snd_usb_proc_pcm_format_add(as); | |
554 | ||
04324ccc | 555 | return add_chmap(pcm, stream, &as->substream[stream]); |
e8e8babf DM |
556 | } |
557 | ||
7edf3b5e JS |
558 | int snd_usb_add_audio_stream(struct snd_usb_audio *chip, |
559 | int stream, | |
560 | struct audioformat *fp) | |
561 | { | |
562 | return __snd_usb_add_audio_stream(chip, stream, fp, NULL); | |
563 | } | |
564 | ||
565 | static int snd_usb_add_audio_stream_v3(struct snd_usb_audio *chip, | |
566 | int stream, | |
567 | struct audioformat *fp, | |
568 | struct snd_usb_power_domain *pd) | |
569 | { | |
570 | return __snd_usb_add_audio_stream(chip, stream, fp, pd); | |
571 | } | |
572 | ||
e8e8babf DM |
573 | static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip, |
574 | struct usb_host_interface *alts, | |
575 | int protocol, int iface_no) | |
576 | { | |
577 | /* parsed with a v1 header here. that's ok as we only look at the | |
578 | * header first which is the same for both versions */ | |
579 | struct uac_iso_endpoint_descriptor *csep; | |
580 | struct usb_interface_descriptor *altsd = get_iface_desc(alts); | |
581 | int attributes = 0; | |
582 | ||
583 | csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT); | |
584 | ||
585 | /* Creamware Noah has this descriptor after the 2nd endpoint */ | |
586 | if (!csep && altsd->bNumEndpoints >= 2) | |
587 | csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT); | |
588 | ||
ebfc594c DM |
589 | /* |
590 | * If we can't locate the USB_DT_CS_ENDPOINT descriptor in the extra | |
591 | * bytes after the first endpoint, go search the entire interface. | |
592 | * Some devices have it directly *before* the standard endpoint. | |
593 | */ | |
594 | if (!csep) | |
595 | csep = snd_usb_find_desc(alts->extra, alts->extralen, NULL, USB_DT_CS_ENDPOINT); | |
596 | ||
e8e8babf | 597 | if (!csep || csep->bLength < 7 || |
3e96d728 TI |
598 | csep->bDescriptorSubtype != UAC_EP_GENERAL) |
599 | goto error; | |
e8e8babf DM |
600 | |
601 | if (protocol == UAC_VERSION_1) { | |
602 | attributes = csep->bmAttributes; | |
c99f0802 | 603 | } else if (protocol == UAC_VERSION_2) { |
e8e8babf DM |
604 | struct uac2_iso_endpoint_descriptor *csep2 = |
605 | (struct uac2_iso_endpoint_descriptor *) csep; | |
606 | ||
3e96d728 TI |
607 | if (csep2->bLength < sizeof(*csep2)) |
608 | goto error; | |
e8e8babf DM |
609 | attributes = csep->bmAttributes & UAC_EP_CS_ATTR_FILL_MAX; |
610 | ||
611 | /* emulate the endpoint attributes of a v1 device */ | |
612 | if (csep2->bmControls & UAC2_CONTROL_PITCH) | |
613 | attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL; | |
c99f0802 JS |
614 | } else { /* UAC_VERSION_3 */ |
615 | struct uac3_iso_endpoint_descriptor *csep3 = | |
616 | (struct uac3_iso_endpoint_descriptor *) csep; | |
617 | ||
3e96d728 TI |
618 | if (csep3->bLength < sizeof(*csep3)) |
619 | goto error; | |
c99f0802 JS |
620 | /* emulate the endpoint attributes of a v1 device */ |
621 | if (le32_to_cpu(csep3->bmControls) & UAC2_CONTROL_PITCH) | |
622 | attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL; | |
e8e8babf DM |
623 | } |
624 | ||
625 | return attributes; | |
3e96d728 TI |
626 | |
627 | error: | |
628 | usb_audio_warn(chip, | |
629 | "%u:%d : no or invalid class specific endpoint descriptor\n", | |
630 | iface_no, altsd->bAlternateSetting); | |
631 | return 0; | |
e8e8babf DM |
632 | } |
633 | ||
04324ccc TI |
634 | /* find an input terminal descriptor (either UAC1 or UAC2) with the given |
635 | * terminal id | |
636 | */ | |
637 | static void * | |
638 | snd_usb_find_input_terminal_descriptor(struct usb_host_interface *ctrl_iface, | |
57f87706 | 639 | int terminal_id, int protocol) |
e8e8babf DM |
640 | { |
641 | struct uac2_input_terminal_descriptor *term = NULL; | |
642 | ||
643 | while ((term = snd_usb_find_csint_desc(ctrl_iface->extra, | |
644 | ctrl_iface->extralen, | |
645 | term, UAC_INPUT_TERMINAL))) { | |
57f87706 | 646 | if (!snd_usb_validate_audio_desc(term, protocol)) |
3e96d728 | 647 | continue; |
e8e8babf DM |
648 | if (term->bTerminalID == terminal_id) |
649 | return term; | |
650 | } | |
651 | ||
652 | return NULL; | |
653 | } | |
654 | ||
9a2fe9b8 RB |
655 | static void * |
656 | snd_usb_find_output_terminal_descriptor(struct usb_host_interface *ctrl_iface, | |
57f87706 | 657 | int terminal_id, int protocol) |
e8e8babf | 658 | { |
9a2fe9b8 | 659 | /* OK to use with both UAC2 and UAC3 */ |
e8e8babf DM |
660 | struct uac2_output_terminal_descriptor *term = NULL; |
661 | ||
662 | while ((term = snd_usb_find_csint_desc(ctrl_iface->extra, | |
663 | ctrl_iface->extralen, | |
664 | term, UAC_OUTPUT_TERMINAL))) { | |
57f87706 TI |
665 | if (!snd_usb_validate_audio_desc(term, protocol)) |
666 | continue; | |
667 | if (term->bTerminalID == terminal_id) | |
e8e8babf DM |
668 | return term; |
669 | } | |
670 | ||
671 | return NULL; | |
672 | } | |
673 | ||
4d47fa84 RB |
674 | static struct audioformat * |
675 | audio_format_alloc_init(struct snd_usb_audio *chip, | |
676 | struct usb_host_interface *alts, | |
677 | int protocol, int iface_no, int altset_idx, | |
678 | int altno, int num_channels, int clock) | |
679 | { | |
680 | struct audioformat *fp; | |
681 | ||
682 | fp = kzalloc(sizeof(*fp), GFP_KERNEL); | |
683 | if (!fp) | |
684 | return NULL; | |
685 | ||
686 | fp->iface = iface_no; | |
687 | fp->altsetting = altno; | |
688 | fp->altset_idx = altset_idx; | |
689 | fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress; | |
690 | fp->ep_attr = get_endpoint(alts, 0)->bmAttributes; | |
691 | fp->datainterval = snd_usb_parse_datainterval(chip, alts); | |
692 | fp->protocol = protocol; | |
693 | fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); | |
694 | fp->channels = num_channels; | |
695 | if (snd_usb_get_speed(chip->dev) == USB_SPEED_HIGH) | |
696 | fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1) | |
697 | * (fp->maxpacksize & 0x7ff); | |
698 | fp->clock = clock; | |
699 | INIT_LIST_HEAD(&fp->list); | |
700 | ||
701 | return fp; | |
702 | } | |
703 | ||
68faa863 RB |
704 | static struct audioformat * |
705 | snd_usb_get_audioformat_uac12(struct snd_usb_audio *chip, | |
706 | struct usb_host_interface *alts, | |
707 | int protocol, int iface_no, int altset_idx, | |
708 | int altno, int stream, int bm_quirk) | |
709 | { | |
710 | struct usb_device *dev = chip->dev; | |
711 | struct uac_format_type_i_continuous_descriptor *fmt; | |
712 | unsigned int num_channels = 0, chconfig = 0; | |
713 | struct audioformat *fp; | |
714 | int clock = 0; | |
715 | u64 format; | |
716 | ||
717 | /* get audio formats */ | |
718 | if (protocol == UAC_VERSION_1) { | |
719 | struct uac1_as_header_descriptor *as = | |
720 | snd_usb_find_csint_desc(alts->extra, alts->extralen, | |
721 | NULL, UAC_AS_GENERAL); | |
722 | struct uac_input_terminal_descriptor *iterm; | |
723 | ||
724 | if (!as) { | |
725 | dev_err(&dev->dev, | |
726 | "%u:%d : UAC_AS_GENERAL descriptor not found\n", | |
727 | iface_no, altno); | |
728 | return NULL; | |
729 | } | |
730 | ||
731 | if (as->bLength < sizeof(*as)) { | |
732 | dev_err(&dev->dev, | |
733 | "%u:%d : invalid UAC_AS_GENERAL desc\n", | |
734 | iface_no, altno); | |
735 | return NULL; | |
736 | } | |
737 | ||
738 | format = le16_to_cpu(as->wFormatTag); /* remember the format value */ | |
739 | ||
740 | iterm = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf, | |
3e96d728 | 741 | as->bTerminalLink, |
57f87706 | 742 | protocol); |
68faa863 RB |
743 | if (iterm) { |
744 | num_channels = iterm->bNrChannels; | |
745 | chconfig = le16_to_cpu(iterm->wChannelConfig); | |
746 | } | |
747 | } else { /* UAC_VERSION_2 */ | |
748 | struct uac2_input_terminal_descriptor *input_term; | |
749 | struct uac2_output_terminal_descriptor *output_term; | |
750 | struct uac2_as_header_descriptor *as = | |
751 | snd_usb_find_csint_desc(alts->extra, alts->extralen, | |
752 | NULL, UAC_AS_GENERAL); | |
753 | ||
754 | if (!as) { | |
755 | dev_err(&dev->dev, | |
756 | "%u:%d : UAC_AS_GENERAL descriptor not found\n", | |
757 | iface_no, altno); | |
758 | return NULL; | |
759 | } | |
760 | ||
761 | if (as->bLength < sizeof(*as)) { | |
762 | dev_err(&dev->dev, | |
763 | "%u:%d : invalid UAC_AS_GENERAL desc\n", | |
764 | iface_no, altno); | |
765 | return NULL; | |
766 | } | |
767 | ||
768 | num_channels = as->bNrChannels; | |
769 | format = le32_to_cpu(as->bmFormats); | |
770 | chconfig = le32_to_cpu(as->bmChannelConfig); | |
771 | ||
772 | /* | |
773 | * lookup the terminal associated to this interface | |
774 | * to extract the clock | |
775 | */ | |
776 | input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf, | |
3e96d728 | 777 | as->bTerminalLink, |
57f87706 | 778 | protocol); |
68faa863 RB |
779 | if (input_term) { |
780 | clock = input_term->bCSourceID; | |
781 | if (!chconfig && (num_channels == input_term->bNrChannels)) | |
782 | chconfig = le32_to_cpu(input_term->bmChannelConfig); | |
783 | goto found_clock; | |
784 | } | |
785 | ||
786 | output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf, | |
57f87706 TI |
787 | as->bTerminalLink, |
788 | protocol); | |
68faa863 RB |
789 | if (output_term) { |
790 | clock = output_term->bCSourceID; | |
791 | goto found_clock; | |
792 | } | |
793 | ||
794 | dev_err(&dev->dev, | |
795 | "%u:%d : bogus bTerminalLink %d\n", | |
796 | iface_no, altno, as->bTerminalLink); | |
797 | return NULL; | |
798 | } | |
799 | ||
800 | found_clock: | |
801 | /* get format type */ | |
802 | fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, | |
803 | NULL, UAC_FORMAT_TYPE); | |
804 | if (!fmt) { | |
805 | dev_err(&dev->dev, | |
806 | "%u:%d : no UAC_FORMAT_TYPE desc\n", | |
807 | iface_no, altno); | |
808 | return NULL; | |
809 | } | |
810 | if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8)) | |
811 | || ((protocol == UAC_VERSION_2) && | |
812 | (fmt->bLength < 6))) { | |
813 | dev_err(&dev->dev, | |
814 | "%u:%d : invalid UAC_FORMAT_TYPE desc\n", | |
815 | iface_no, altno); | |
816 | return NULL; | |
817 | } | |
818 | ||
819 | /* | |
820 | * Blue Microphones workaround: The last altsetting is | |
821 | * identical with the previous one, except for a larger | |
822 | * packet size, but is actually a mislabeled two-channel | |
823 | * setting; ignore it. | |
824 | * | |
825 | * Part 2: analyze quirk flag and format | |
826 | */ | |
827 | if (bm_quirk && fmt->bNrChannels == 1 && fmt->bSubframeSize == 2) | |
828 | return NULL; | |
829 | ||
830 | fp = audio_format_alloc_init(chip, alts, protocol, iface_no, | |
831 | altset_idx, altno, num_channels, clock); | |
832 | if (!fp) | |
833 | return ERR_PTR(-ENOMEM); | |
834 | ||
835 | fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol, | |
836 | iface_no); | |
837 | ||
838 | /* some quirks for attributes here */ | |
839 | snd_usb_audioformat_attributes_quirk(chip, fp, stream); | |
840 | ||
841 | /* ok, let's parse further... */ | |
842 | if (snd_usb_parse_audio_format(chip, fp, format, | |
843 | fmt, stream) < 0) { | |
c1ae5e7f | 844 | audioformat_free(fp); |
68faa863 RB |
845 | return NULL; |
846 | } | |
847 | ||
848 | /* Create chmap */ | |
849 | if (fp->channels != num_channels) | |
850 | chconfig = 0; | |
851 | ||
852 | fp->chmap = convert_chmap(fp->channels, chconfig, protocol); | |
853 | ||
854 | return fp; | |
855 | } | |
4d47fa84 | 856 | |
eda553f4 RB |
857 | static struct audioformat * |
858 | snd_usb_get_audioformat_uac3(struct snd_usb_audio *chip, | |
859 | struct usb_host_interface *alts, | |
7edf3b5e | 860 | struct snd_usb_power_domain **pd_out, |
eda553f4 RB |
861 | int iface_no, int altset_idx, |
862 | int altno, int stream) | |
863 | { | |
864 | struct usb_device *dev = chip->dev; | |
865 | struct uac3_input_terminal_descriptor *input_term; | |
866 | struct uac3_output_terminal_descriptor *output_term; | |
867 | struct uac3_cluster_header_descriptor *cluster; | |
17156f23 | 868 | struct uac3_as_header_descriptor *as = NULL; |
eda553f4 RB |
869 | struct uac3_hc_descriptor_header hc_header; |
870 | struct snd_pcm_chmap_elem *chmap; | |
7edf3b5e | 871 | struct snd_usb_power_domain *pd; |
17156f23 RB |
872 | unsigned char badd_profile; |
873 | u64 badd_formats = 0; | |
eda553f4 RB |
874 | unsigned int num_channels; |
875 | struct audioformat *fp; | |
876 | u16 cluster_id, wLength; | |
877 | int clock = 0; | |
878 | int err; | |
879 | ||
17156f23 RB |
880 | badd_profile = chip->badd_profile; |
881 | ||
882 | if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { | |
883 | unsigned int maxpacksize = | |
884 | le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize); | |
885 | ||
886 | switch (maxpacksize) { | |
887 | default: | |
888 | dev_err(&dev->dev, | |
889 | "%u:%d : incorrect wMaxPacketSize for BADD profile\n", | |
890 | iface_no, altno); | |
891 | return NULL; | |
892 | case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16: | |
893 | case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16: | |
894 | badd_formats = SNDRV_PCM_FMTBIT_S16_LE; | |
895 | num_channels = 1; | |
896 | break; | |
897 | case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24: | |
898 | case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24: | |
899 | badd_formats = SNDRV_PCM_FMTBIT_S24_3LE; | |
900 | num_channels = 1; | |
901 | break; | |
902 | case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16: | |
903 | case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16: | |
904 | badd_formats = SNDRV_PCM_FMTBIT_S16_LE; | |
905 | num_channels = 2; | |
906 | break; | |
907 | case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24: | |
908 | case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24: | |
909 | badd_formats = SNDRV_PCM_FMTBIT_S24_3LE; | |
910 | num_channels = 2; | |
911 | break; | |
912 | } | |
913 | ||
914 | chmap = kzalloc(sizeof(*chmap), GFP_KERNEL); | |
915 | if (!chmap) | |
916 | return ERR_PTR(-ENOMEM); | |
917 | ||
918 | if (num_channels == 1) { | |
919 | chmap->map[0] = SNDRV_CHMAP_MONO; | |
920 | } else { | |
921 | chmap->map[0] = SNDRV_CHMAP_FL; | |
922 | chmap->map[1] = SNDRV_CHMAP_FR; | |
923 | } | |
924 | ||
925 | chmap->channels = num_channels; | |
926 | clock = UAC3_BADD_CS_ID9; | |
927 | goto found_clock; | |
928 | } | |
929 | ||
eda553f4 RB |
930 | as = snd_usb_find_csint_desc(alts->extra, alts->extralen, |
931 | NULL, UAC_AS_GENERAL); | |
932 | if (!as) { | |
933 | dev_err(&dev->dev, | |
934 | "%u:%d : UAC_AS_GENERAL descriptor not found\n", | |
935 | iface_no, altno); | |
936 | return NULL; | |
937 | } | |
938 | ||
939 | if (as->bLength < sizeof(*as)) { | |
940 | dev_err(&dev->dev, | |
941 | "%u:%d : invalid UAC_AS_GENERAL desc\n", | |
942 | iface_no, altno); | |
943 | return NULL; | |
944 | } | |
945 | ||
946 | cluster_id = le16_to_cpu(as->wClusterDescrID); | |
947 | if (!cluster_id) { | |
948 | dev_err(&dev->dev, | |
949 | "%u:%d : no cluster descriptor\n", | |
950 | iface_no, altno); | |
951 | return NULL; | |
952 | } | |
953 | ||
954 | /* | |
955 | * Get number of channels and channel map through | |
956 | * High Capability Cluster Descriptor | |
957 | * | |
958 | * First step: get High Capability header and | |
959 | * read size of Cluster Descriptor | |
960 | */ | |
961 | err = snd_usb_ctl_msg(chip->dev, | |
962 | usb_rcvctrlpipe(chip->dev, 0), | |
963 | UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, | |
964 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
965 | cluster_id, | |
966 | snd_usb_ctrl_intf(chip), | |
967 | &hc_header, sizeof(hc_header)); | |
968 | if (err < 0) | |
969 | return ERR_PTR(err); | |
970 | else if (err != sizeof(hc_header)) { | |
971 | dev_err(&dev->dev, | |
972 | "%u:%d : can't get High Capability descriptor\n", | |
973 | iface_no, altno); | |
974 | return ERR_PTR(-EIO); | |
975 | } | |
976 | ||
977 | /* | |
978 | * Second step: allocate needed amount of memory | |
979 | * and request Cluster Descriptor | |
980 | */ | |
981 | wLength = le16_to_cpu(hc_header.wLength); | |
982 | cluster = kzalloc(wLength, GFP_KERNEL); | |
983 | if (!cluster) | |
984 | return ERR_PTR(-ENOMEM); | |
985 | err = snd_usb_ctl_msg(chip->dev, | |
986 | usb_rcvctrlpipe(chip->dev, 0), | |
987 | UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR, | |
988 | USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN, | |
989 | cluster_id, | |
990 | snd_usb_ctrl_intf(chip), | |
991 | cluster, wLength); | |
992 | if (err < 0) { | |
993 | kfree(cluster); | |
994 | return ERR_PTR(err); | |
995 | } else if (err != wLength) { | |
996 | dev_err(&dev->dev, | |
997 | "%u:%d : can't get Cluster Descriptor\n", | |
998 | iface_no, altno); | |
999 | kfree(cluster); | |
1000 | return ERR_PTR(-EIO); | |
1001 | } | |
1002 | ||
1003 | num_channels = cluster->bNrChannels; | |
1004 | chmap = convert_chmap_v3(cluster); | |
1005 | kfree(cluster); | |
1006 | ||
1007 | /* | |
1008 | * lookup the terminal associated to this interface | |
1009 | * to extract the clock | |
1010 | */ | |
1011 | input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf, | |
3e96d728 | 1012 | as->bTerminalLink, |
57f87706 | 1013 | UAC_VERSION_3); |
eda553f4 RB |
1014 | if (input_term) { |
1015 | clock = input_term->bCSourceID; | |
1016 | goto found_clock; | |
1017 | } | |
1018 | ||
1019 | output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf, | |
57f87706 TI |
1020 | as->bTerminalLink, |
1021 | UAC_VERSION_3); | |
eda553f4 RB |
1022 | if (output_term) { |
1023 | clock = output_term->bCSourceID; | |
1024 | goto found_clock; | |
1025 | } | |
1026 | ||
1027 | dev_err(&dev->dev, "%u:%d : bogus bTerminalLink %d\n", | |
1028 | iface_no, altno, as->bTerminalLink); | |
6cd17ea7 | 1029 | kfree(chmap); |
eda553f4 RB |
1030 | return NULL; |
1031 | ||
1032 | found_clock: | |
1033 | fp = audio_format_alloc_init(chip, alts, UAC_VERSION_3, iface_no, | |
1034 | altset_idx, altno, num_channels, clock); | |
6cd17ea7 RB |
1035 | if (!fp) { |
1036 | kfree(chmap); | |
eda553f4 | 1037 | return ERR_PTR(-ENOMEM); |
6cd17ea7 | 1038 | } |
eda553f4 | 1039 | |
eda553f4 RB |
1040 | fp->chmap = chmap; |
1041 | ||
17156f23 RB |
1042 | if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) { |
1043 | fp->attributes = 0; /* No attributes */ | |
1044 | ||
1045 | fp->fmt_type = UAC_FORMAT_TYPE_I; | |
1046 | fp->formats = badd_formats; | |
1047 | ||
1048 | fp->nr_rates = 0; /* SNDRV_PCM_RATE_CONTINUOUS */ | |
1049 | fp->rate_min = UAC3_BADD_SAMPLING_RATE; | |
1050 | fp->rate_max = UAC3_BADD_SAMPLING_RATE; | |
1051 | fp->rates = SNDRV_PCM_RATE_CONTINUOUS; | |
1052 | ||
11175556 | 1053 | pd = kzalloc(sizeof(*pd), GFP_KERNEL); |
7edf3b5e | 1054 | if (!pd) { |
c1ae5e7f | 1055 | audioformat_free(fp); |
7edf3b5e JS |
1056 | return NULL; |
1057 | } | |
1058 | pd->pd_id = (stream == SNDRV_PCM_STREAM_PLAYBACK) ? | |
1059 | UAC3_BADD_PD_ID10 : UAC3_BADD_PD_ID11; | |
1060 | pd->pd_d1d0_rec = UAC3_BADD_PD_RECOVER_D1D0; | |
1061 | pd->pd_d2d0_rec = UAC3_BADD_PD_RECOVER_D2D0; | |
1062 | ||
17156f23 RB |
1063 | } else { |
1064 | fp->attributes = parse_uac_endpoint_attributes(chip, alts, | |
1065 | UAC_VERSION_3, | |
1066 | iface_no); | |
7edf3b5e JS |
1067 | |
1068 | pd = snd_usb_find_power_domain(chip->ctrl_intf, | |
1069 | as->bTerminalLink); | |
1070 | ||
17156f23 RB |
1071 | /* ok, let's parse further... */ |
1072 | if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) { | |
7edf3b5e | 1073 | kfree(pd); |
c1ae5e7f | 1074 | audioformat_free(fp); |
17156f23 RB |
1075 | return NULL; |
1076 | } | |
eda553f4 RB |
1077 | } |
1078 | ||
7edf3b5e JS |
1079 | if (pd) |
1080 | *pd_out = pd; | |
1081 | ||
eda553f4 RB |
1082 | return fp; |
1083 | } | |
1084 | ||
f7f53018 AT |
1085 | static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip, |
1086 | int iface_no, | |
1087 | bool *has_non_pcm, bool non_pcm) | |
e8e8babf DM |
1088 | { |
1089 | struct usb_device *dev; | |
1090 | struct usb_interface *iface; | |
1091 | struct usb_host_interface *alts; | |
1092 | struct usb_interface_descriptor *altsd; | |
1093 | int i, altno, err, stream; | |
e8e8babf | 1094 | struct audioformat *fp = NULL; |
7edf3b5e | 1095 | struct snd_usb_power_domain *pd = NULL; |
eda553f4 | 1096 | int num, protocol; |
e8e8babf DM |
1097 | |
1098 | dev = chip->dev; | |
1099 | ||
1100 | /* parse the interface's altsettings */ | |
1101 | iface = usb_ifnum_to_if(dev, iface_no); | |
1102 | ||
1103 | num = iface->num_altsetting; | |
1104 | ||
1105 | /* | |
1106 | * Dallas DS4201 workaround: It presents 5 altsettings, but the last | |
1107 | * one misses syncpipe, and does not produce any sound. | |
1108 | */ | |
1109 | if (chip->usb_id == USB_ID(0x04fa, 0x4201)) | |
1110 | num = 4; | |
1111 | ||
1112 | for (i = 0; i < num; i++) { | |
1113 | alts = &iface->altsetting[i]; | |
1114 | altsd = get_iface_desc(alts); | |
1115 | protocol = altsd->bInterfaceProtocol; | |
1116 | /* skip invalid one */ | |
aafe77cc CL |
1117 | if (((altsd->bInterfaceClass != USB_CLASS_AUDIO || |
1118 | (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING && | |
1119 | altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC)) && | |
e8e8babf | 1120 | altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) || |
e8e8babf DM |
1121 | altsd->bNumEndpoints < 1 || |
1122 | le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0) | |
1123 | continue; | |
1124 | /* must be isochronous */ | |
1125 | if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != | |
1126 | USB_ENDPOINT_XFER_ISOC) | |
1127 | continue; | |
1128 | /* check direction */ | |
1129 | stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ? | |
1130 | SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK; | |
1131 | altno = altsd->bAlternateSetting; | |
1132 | ||
1133 | if (snd_usb_apply_interface_quirk(chip, iface_no, altno)) | |
1134 | continue; | |
1135 | ||
aafe77cc CL |
1136 | /* |
1137 | * Roland audio streaming interfaces are marked with protocols | |
1138 | * 0/1/2, but are UAC 1 compatible. | |
1139 | */ | |
1140 | if (USB_ID_VENDOR(chip->usb_id) == 0x0582 && | |
1141 | altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC && | |
1142 | protocol <= 2) | |
1143 | protocol = UAC_VERSION_1; | |
1144 | ||
e8e8babf DM |
1145 | switch (protocol) { |
1146 | default: | |
0ba41d91 TI |
1147 | dev_dbg(&dev->dev, "%u:%d: unknown interface protocol %#02x, assuming v1\n", |
1148 | iface_no, altno, protocol); | |
e8e8babf | 1149 | protocol = UAC_VERSION_1; |
c0dbbdad | 1150 | fallthrough; |
68faa863 | 1151 | case UAC_VERSION_1: |
e8e8babf | 1152 | case UAC_VERSION_2: { |
68faa863 | 1153 | int bm_quirk = 0; |
e8e8babf | 1154 | |
68faa863 RB |
1155 | /* |
1156 | * Blue Microphones workaround: The last altsetting is | |
1157 | * identical with the previous one, except for a larger | |
1158 | * packet size, but is actually a mislabeled two-channel | |
1159 | * setting; ignore it. | |
1160 | * | |
1161 | * Part 1: prepare quirk flag | |
1162 | */ | |
1163 | if (altno == 2 && num == 3 && | |
1164 | fp && fp->altsetting == 1 && fp->channels == 1 && | |
1165 | fp->formats == SNDRV_PCM_FMTBIT_S16_LE && | |
1166 | protocol == UAC_VERSION_1 && | |
1167 | le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == | |
1168 | fp->maxpacksize * 2) | |
1169 | bm_quirk = 1; | |
e8e8babf | 1170 | |
68faa863 RB |
1171 | fp = snd_usb_get_audioformat_uac12(chip, alts, protocol, |
1172 | iface_no, i, altno, | |
1173 | stream, bm_quirk); | |
1174 | break; | |
e8e8babf | 1175 | } |
eda553f4 | 1176 | case UAC_VERSION_3: |
7edf3b5e | 1177 | fp = snd_usb_get_audioformat_uac3(chip, alts, &pd, |
eda553f4 RB |
1178 | iface_no, i, altno, stream); |
1179 | break; | |
9a2fe9b8 | 1180 | } |
e8e8babf | 1181 | |
9ecb2406 | 1182 | if (!fp) |
68faa863 | 1183 | continue; |
eda553f4 RB |
1184 | else if (IS_ERR(fp)) |
1185 | return PTR_ERR(fp); | |
e8e8babf | 1186 | |
f7f53018 AT |
1187 | if (fp->fmt_type != UAC_FORMAT_TYPE_I) |
1188 | *has_non_pcm = true; | |
1189 | if ((fp->fmt_type == UAC_FORMAT_TYPE_I) == non_pcm) { | |
1190 | audioformat_free(fp); | |
1191 | kfree(pd); | |
1192 | fp = NULL; | |
1193 | pd = NULL; | |
1194 | continue; | |
1195 | } | |
1196 | ||
0ba41d91 | 1197 | dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint); |
7edf3b5e JS |
1198 | if (protocol == UAC_VERSION_3) |
1199 | err = snd_usb_add_audio_stream_v3(chip, stream, fp, pd); | |
1200 | else | |
1201 | err = snd_usb_add_audio_stream(chip, stream, fp); | |
1202 | ||
e8e8babf | 1203 | if (err < 0) { |
c1ae5e7f | 1204 | audioformat_free(fp); |
7edf3b5e | 1205 | kfree(pd); |
e8e8babf DM |
1206 | return err; |
1207 | } | |
1208 | /* try to set the interface... */ | |
1209 | usb_set_interface(chip->dev, iface_no, altno); | |
1210 | snd_usb_init_pitch(chip, iface_no, alts, fp); | |
1211 | snd_usb_init_sample_rate(chip, iface_no, alts, fp, fp->rate_max); | |
1212 | } | |
1213 | return 0; | |
1214 | } | |
1215 | ||
f7f53018 AT |
1216 | int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no) |
1217 | { | |
1218 | int err; | |
1219 | bool has_non_pcm = false; | |
1220 | ||
1221 | /* parse PCM formats */ | |
1222 | err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, false); | |
1223 | if (err < 0) | |
1224 | return err; | |
1225 | ||
1226 | if (has_non_pcm) { | |
1227 | /* parse non-PCM formats */ | |
1228 | err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, true); | |
1229 | if (err < 0) | |
1230 | return err; | |
1231 | } | |
1232 | ||
1233 | return 0; | |
1234 | } | |
1235 |