1 // SPDX-License-Identifier: GPL-2.0-or-later <<
2 /* 1 /*
>> 2 * This program is free software; you can redistribute it and/or modify
>> 3 * it under the terms of the GNU General Public License as published by
>> 4 * the Free Software Foundation; either version 2 of the License, or
>> 5 * (at your option) any later version.
>> 6 *
>> 7 * This program is distributed in the hope that it will be useful,
>> 8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> 9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> 10 * GNU General Public License for more details.
>> 11 *
>> 12 * You should have received a copy of the GNU General Public License
>> 13 * along with this program; if not, write to the Free Software
>> 14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
3 */ 15 */
4 16
5 17
6 #include <linux/init.h> 18 #include <linux/init.h>
7 #include <linux/slab.h> 19 #include <linux/slab.h>
8 #include <linux/usb.h> 20 #include <linux/usb.h>
9 #include <linux/usb/audio.h> 21 #include <linux/usb/audio.h>
10 #include <linux/usb/audio-v2.h> 22 #include <linux/usb/audio-v2.h>
11 #include <linux/usb/audio-v3.h> <<
12 23
13 #include <sound/core.h> 24 #include <sound/core.h>
14 #include <sound/pcm.h> 25 #include <sound/pcm.h>
15 #include <sound/control.h> 26 #include <sound/control.h>
16 #include <sound/tlv.h> 27 #include <sound/tlv.h>
17 28
18 #include "usbaudio.h" 29 #include "usbaudio.h"
19 #include "card.h" 30 #include "card.h"
20 #include "proc.h" 31 #include "proc.h"
21 #include "quirks.h" 32 #include "quirks.h"
22 #include "endpoint.h" 33 #include "endpoint.h"
23 #include "pcm.h" 34 #include "pcm.h"
24 #include "helper.h" 35 #include "helper.h"
25 #include "format.h" 36 #include "format.h"
26 #include "clock.h" 37 #include "clock.h"
27 #include "stream.h" 38 #include "stream.h"
28 #include "power.h" <<
29 #include "media.h" <<
30 <<
31 static void audioformat_free(struct audioforma <<
32 { <<
33 list_del(&fp->list); /* unlink for avo <<
34 kfree(fp->rate_table); <<
35 kfree(fp->chmap); <<
36 kfree(fp); <<
37 } <<
38 39
39 /* 40 /*
40 * free a substream 41 * free a substream
41 */ 42 */
42 static void free_substream(struct snd_usb_subs 43 static void free_substream(struct snd_usb_substream *subs)
43 { 44 {
44 struct audioformat *fp, *n; 45 struct audioformat *fp, *n;
45 46
46 if (!subs->num_formats) 47 if (!subs->num_formats)
47 return; /* not initialized */ 48 return; /* not initialized */
48 list_for_each_entry_safe(fp, n, &subs- !! 49 list_for_each_entry_safe(fp, n, &subs->fmt_list, list) {
49 audioformat_free(fp); !! 50 kfree(fp->rate_table);
50 kfree(subs->str_pd); !! 51 kfree(fp->chmap);
51 snd_media_stream_delete(subs); !! 52 kfree(fp);
>> 53 }
>> 54 kfree(subs->rate_list.list);
52 } 55 }
53 56
54 57
55 /* 58 /*
56 * free a usb stream instance 59 * free a usb stream instance
57 */ 60 */
58 static void snd_usb_audio_stream_free(struct s 61 static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)
59 { 62 {
60 free_substream(&stream->substream[0]); 63 free_substream(&stream->substream[0]);
61 free_substream(&stream->substream[1]); 64 free_substream(&stream->substream[1]);
62 list_del(&stream->list); 65 list_del(&stream->list);
63 kfree(stream); 66 kfree(stream);
64 } 67 }
65 68
66 static void snd_usb_audio_pcm_free(struct snd_ 69 static void snd_usb_audio_pcm_free(struct snd_pcm *pcm)
67 { 70 {
68 struct snd_usb_stream *stream = pcm->p 71 struct snd_usb_stream *stream = pcm->private_data;
69 if (stream) { 72 if (stream) {
70 stream->pcm = NULL; 73 stream->pcm = NULL;
71 snd_usb_audio_stream_free(stre 74 snd_usb_audio_stream_free(stream);
72 } 75 }
73 } 76 }
74 77
75 /* 78 /*
76 * initialize the substream instance. 79 * initialize the substream instance.
77 */ 80 */
78 81
79 static void snd_usb_init_substream(struct snd_ 82 static void snd_usb_init_substream(struct snd_usb_stream *as,
80 int stream, 83 int stream,
81 struct audi !! 84 struct audioformat *fp)
82 struct snd_ <<
83 { 85 {
84 struct snd_usb_substream *subs = &as-> 86 struct snd_usb_substream *subs = &as->substream[stream];
85 87
86 INIT_LIST_HEAD(&subs->fmt_list); 88 INIT_LIST_HEAD(&subs->fmt_list);
87 spin_lock_init(&subs->lock); 89 spin_lock_init(&subs->lock);
88 90
89 subs->stream = as; 91 subs->stream = as;
90 subs->direction = stream; 92 subs->direction = stream;
91 subs->dev = as->chip->dev; 93 subs->dev = as->chip->dev;
92 subs->txfr_quirk = !!(as->chip->quirk_ !! 94 subs->txfr_quirk = as->chip->txfr_quirk;
93 subs->tx_length_quirk = !!(as->chip->q !! 95 subs->tx_length_quirk = as->chip->tx_length_quirk;
94 subs->speed = snd_usb_get_speed(subs-> 96 subs->speed = snd_usb_get_speed(subs->dev);
95 subs->pkt_offset_adj = 0; 97 subs->pkt_offset_adj = 0;
96 subs->stream_offset_adj = 0; <<
97 98
98 snd_usb_set_pcm_ops(as->pcm, stream); 99 snd_usb_set_pcm_ops(as->pcm, stream);
99 100
100 list_add_tail(&fp->list, &subs->fmt_li 101 list_add_tail(&fp->list, &subs->fmt_list);
101 subs->formats |= fp->formats; 102 subs->formats |= fp->formats;
102 subs->num_formats++; 103 subs->num_formats++;
103 subs->fmt_type = fp->fmt_type; 104 subs->fmt_type = fp->fmt_type;
104 subs->ep_num = fp->endpoint; 105 subs->ep_num = fp->endpoint;
105 if (fp->channels > subs->channels_max) 106 if (fp->channels > subs->channels_max)
106 subs->channels_max = fp->chann 107 subs->channels_max = fp->channels;
107 <<
108 if (pd) { <<
109 subs->str_pd = pd; <<
110 /* Initialize Power Domain to <<
111 snd_usb_power_domain_set(subs- <<
112 UAC3_ <<
113 } <<
114 <<
115 snd_usb_preallocate_buffer(subs); <<
116 } 108 }
117 109
118 /* kctl callbacks for usb-audio channel maps * 110 /* kctl callbacks for usb-audio channel maps */
119 static int usb_chmap_ctl_info(struct snd_kcont 111 static int usb_chmap_ctl_info(struct snd_kcontrol *kcontrol,
120 struct snd_ctl_e 112 struct snd_ctl_elem_info *uinfo)
121 { 113 {
122 struct snd_pcm_chmap *info = snd_kcont 114 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
123 struct snd_usb_substream *subs = info- 115 struct snd_usb_substream *subs = info->private_data;
124 116
125 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTE 117 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
126 uinfo->count = subs->channels_max; 118 uinfo->count = subs->channels_max;
127 uinfo->value.integer.min = 0; 119 uinfo->value.integer.min = 0;
128 uinfo->value.integer.max = SNDRV_CHMAP 120 uinfo->value.integer.max = SNDRV_CHMAP_LAST;
129 return 0; 121 return 0;
130 } 122 }
131 123
132 /* check whether a duplicated entry exists in 124 /* check whether a duplicated entry exists in the audiofmt list */
133 static bool have_dup_chmap(struct snd_usb_subs 125 static bool have_dup_chmap(struct snd_usb_substream *subs,
134 struct audioformat 126 struct audioformat *fp)
135 { 127 {
136 struct audioformat *prev = fp; 128 struct audioformat *prev = fp;
137 129
138 list_for_each_entry_continue_reverse(p 130 list_for_each_entry_continue_reverse(prev, &subs->fmt_list, list) {
139 if (prev->chmap && 131 if (prev->chmap &&
140 !memcmp(prev->chmap, fp->c 132 !memcmp(prev->chmap, fp->chmap, sizeof(*fp->chmap)))
141 return true; 133 return true;
142 } 134 }
143 return false; 135 return false;
144 } 136 }
145 137
146 static int usb_chmap_ctl_tlv(struct snd_kcontr 138 static int usb_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
147 unsigned int size 139 unsigned int size, unsigned int __user *tlv)
148 { 140 {
149 struct snd_pcm_chmap *info = snd_kcont 141 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
150 struct snd_usb_substream *subs = info- 142 struct snd_usb_substream *subs = info->private_data;
151 struct audioformat *fp; 143 struct audioformat *fp;
152 unsigned int __user *dst; 144 unsigned int __user *dst;
153 int count = 0; 145 int count = 0;
154 146
155 if (size < 8) 147 if (size < 8)
156 return -ENOMEM; 148 return -ENOMEM;
157 if (put_user(SNDRV_CTL_TLVT_CONTAINER, 149 if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
158 return -EFAULT; 150 return -EFAULT;
159 size -= 8; 151 size -= 8;
160 dst = tlv + 2; 152 dst = tlv + 2;
161 list_for_each_entry(fp, &subs->fmt_lis 153 list_for_each_entry(fp, &subs->fmt_list, list) {
162 int i, ch_bytes; 154 int i, ch_bytes;
163 155
164 if (!fp->chmap) 156 if (!fp->chmap)
165 continue; 157 continue;
166 if (have_dup_chmap(subs, fp)) 158 if (have_dup_chmap(subs, fp))
167 continue; 159 continue;
168 /* copy the entry */ 160 /* copy the entry */
169 ch_bytes = fp->chmap->channels 161 ch_bytes = fp->chmap->channels * 4;
170 if (size < 8 + ch_bytes) 162 if (size < 8 + ch_bytes)
171 return -ENOMEM; 163 return -ENOMEM;
172 if (put_user(SNDRV_CTL_TLVT_CH 164 if (put_user(SNDRV_CTL_TLVT_CHMAP_FIXED, dst) ||
173 put_user(ch_bytes, dst + 1 165 put_user(ch_bytes, dst + 1))
174 return -EFAULT; 166 return -EFAULT;
175 dst += 2; 167 dst += 2;
176 for (i = 0; i < fp->chmap->cha 168 for (i = 0; i < fp->chmap->channels; i++, dst++) {
177 if (put_user(fp->chmap 169 if (put_user(fp->chmap->map[i], dst))
178 return -EFAULT 170 return -EFAULT;
179 } 171 }
180 172
181 count += 8 + ch_bytes; 173 count += 8 + ch_bytes;
182 size -= 8 + ch_bytes; 174 size -= 8 + ch_bytes;
183 } 175 }
184 if (put_user(count, tlv + 1)) 176 if (put_user(count, tlv + 1))
185 return -EFAULT; 177 return -EFAULT;
186 return 0; 178 return 0;
187 } 179 }
188 180
189 static int usb_chmap_ctl_get(struct snd_kcontr 181 static int usb_chmap_ctl_get(struct snd_kcontrol *kcontrol,
190 struct snd_ctl_el 182 struct snd_ctl_elem_value *ucontrol)
191 { 183 {
192 struct snd_pcm_chmap *info = snd_kcont 184 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
193 struct snd_usb_substream *subs = info- 185 struct snd_usb_substream *subs = info->private_data;
194 struct snd_pcm_chmap_elem *chmap = NUL 186 struct snd_pcm_chmap_elem *chmap = NULL;
195 int i = 0; !! 187 int i;
196 188
>> 189 memset(ucontrol->value.integer.value, 0,
>> 190 sizeof(ucontrol->value.integer.value));
197 if (subs->cur_audiofmt) 191 if (subs->cur_audiofmt)
198 chmap = subs->cur_audiofmt->ch 192 chmap = subs->cur_audiofmt->chmap;
199 if (chmap) { 193 if (chmap) {
200 for (i = 0; i < chmap->channel 194 for (i = 0; i < chmap->channels; i++)
201 ucontrol->value.intege 195 ucontrol->value.integer.value[i] = chmap->map[i];
202 } 196 }
203 for (; i < subs->channels_max; i++) <<
204 ucontrol->value.integer.value[ <<
205 return 0; 197 return 0;
206 } 198 }
207 199
208 /* create a chmap kctl assigned to the given U 200 /* create a chmap kctl assigned to the given USB substream */
209 static int add_chmap(struct snd_pcm *pcm, int 201 static int add_chmap(struct snd_pcm *pcm, int stream,
210 struct snd_usb_substream 202 struct snd_usb_substream *subs)
211 { 203 {
212 struct audioformat *fp; 204 struct audioformat *fp;
213 struct snd_pcm_chmap *chmap; 205 struct snd_pcm_chmap *chmap;
214 struct snd_kcontrol *kctl; 206 struct snd_kcontrol *kctl;
215 int err; 207 int err;
216 208
217 list_for_each_entry(fp, &subs->fmt_lis 209 list_for_each_entry(fp, &subs->fmt_list, list)
218 if (fp->chmap) 210 if (fp->chmap)
219 goto ok; 211 goto ok;
220 /* no chmap is found */ 212 /* no chmap is found */
221 return 0; 213 return 0;
222 214
223 ok: 215 ok:
224 err = snd_pcm_add_chmap_ctls(pcm, stre 216 err = snd_pcm_add_chmap_ctls(pcm, stream, NULL, 0, 0, &chmap);
225 if (err < 0) 217 if (err < 0)
226 return err; 218 return err;
227 219
228 /* override handlers */ 220 /* override handlers */
229 chmap->private_data = subs; 221 chmap->private_data = subs;
230 kctl = chmap->kctl; 222 kctl = chmap->kctl;
231 kctl->info = usb_chmap_ctl_info; 223 kctl->info = usb_chmap_ctl_info;
232 kctl->get = usb_chmap_ctl_get; 224 kctl->get = usb_chmap_ctl_get;
233 kctl->tlv.c = usb_chmap_ctl_tlv; 225 kctl->tlv.c = usb_chmap_ctl_tlv;
234 226
235 return 0; 227 return 0;
236 } 228 }
237 229
238 /* convert from USB ChannelConfig bits to ALSA 230 /* convert from USB ChannelConfig bits to ALSA chmap element */
239 static struct snd_pcm_chmap_elem *convert_chma 231 static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits,
240 232 int protocol)
241 { 233 {
242 static const unsigned int uac1_maps[] !! 234 static unsigned int uac1_maps[] = {
243 SNDRV_CHMAP_FL, /* lef 235 SNDRV_CHMAP_FL, /* left front */
244 SNDRV_CHMAP_FR, /* rig 236 SNDRV_CHMAP_FR, /* right front */
245 SNDRV_CHMAP_FC, /* cen 237 SNDRV_CHMAP_FC, /* center front */
246 SNDRV_CHMAP_LFE, /* LFE 238 SNDRV_CHMAP_LFE, /* LFE */
247 SNDRV_CHMAP_RL, /* lef !! 239 SNDRV_CHMAP_SL, /* left surround */
248 SNDRV_CHMAP_RR, /* rig !! 240 SNDRV_CHMAP_SR, /* right surround */
249 SNDRV_CHMAP_FLC, /* lef 241 SNDRV_CHMAP_FLC, /* left of center */
250 SNDRV_CHMAP_FRC, /* rig 242 SNDRV_CHMAP_FRC, /* right of center */
251 SNDRV_CHMAP_RC, /* sur 243 SNDRV_CHMAP_RC, /* surround */
252 SNDRV_CHMAP_SL, /* sid 244 SNDRV_CHMAP_SL, /* side left */
253 SNDRV_CHMAP_SR, /* sid 245 SNDRV_CHMAP_SR, /* side right */
254 SNDRV_CHMAP_TC, /* top 246 SNDRV_CHMAP_TC, /* top */
255 0 /* terminator */ 247 0 /* terminator */
256 }; 248 };
257 static const unsigned int uac2_maps[] !! 249 static unsigned int uac2_maps[] = {
258 SNDRV_CHMAP_FL, /* fro 250 SNDRV_CHMAP_FL, /* front left */
259 SNDRV_CHMAP_FR, /* fro 251 SNDRV_CHMAP_FR, /* front right */
260 SNDRV_CHMAP_FC, /* fro 252 SNDRV_CHMAP_FC, /* front center */
261 SNDRV_CHMAP_LFE, /* LFE 253 SNDRV_CHMAP_LFE, /* LFE */
262 SNDRV_CHMAP_RL, /* bac 254 SNDRV_CHMAP_RL, /* back left */
263 SNDRV_CHMAP_RR, /* bac 255 SNDRV_CHMAP_RR, /* back right */
264 SNDRV_CHMAP_FLC, /* fro 256 SNDRV_CHMAP_FLC, /* front left of center */
265 SNDRV_CHMAP_FRC, /* fro 257 SNDRV_CHMAP_FRC, /* front right of center */
266 SNDRV_CHMAP_RC, /* bac 258 SNDRV_CHMAP_RC, /* back center */
267 SNDRV_CHMAP_SL, /* sid 259 SNDRV_CHMAP_SL, /* side left */
268 SNDRV_CHMAP_SR, /* sid 260 SNDRV_CHMAP_SR, /* side right */
269 SNDRV_CHMAP_TC, /* top 261 SNDRV_CHMAP_TC, /* top center */
270 SNDRV_CHMAP_TFL, /* top 262 SNDRV_CHMAP_TFL, /* top front left */
271 SNDRV_CHMAP_TFC, /* top 263 SNDRV_CHMAP_TFC, /* top front center */
272 SNDRV_CHMAP_TFR, /* top 264 SNDRV_CHMAP_TFR, /* top front right */
273 SNDRV_CHMAP_TRL, /* top 265 SNDRV_CHMAP_TRL, /* top back left */
274 SNDRV_CHMAP_TRC, /* top 266 SNDRV_CHMAP_TRC, /* top back center */
275 SNDRV_CHMAP_TRR, /* top 267 SNDRV_CHMAP_TRR, /* top back right */
276 SNDRV_CHMAP_TFLC, /* top 268 SNDRV_CHMAP_TFLC, /* top front left of center */
277 SNDRV_CHMAP_TFRC, /* top 269 SNDRV_CHMAP_TFRC, /* top front right of center */
278 SNDRV_CHMAP_LLFE, /* lef 270 SNDRV_CHMAP_LLFE, /* left LFE */
279 SNDRV_CHMAP_RLFE, /* rig 271 SNDRV_CHMAP_RLFE, /* right LFE */
280 SNDRV_CHMAP_TSL, /* top 272 SNDRV_CHMAP_TSL, /* top side left */
281 SNDRV_CHMAP_TSR, /* top 273 SNDRV_CHMAP_TSR, /* top side right */
282 SNDRV_CHMAP_BC, /* bot 274 SNDRV_CHMAP_BC, /* bottom center */
283 SNDRV_CHMAP_RLC, /* bac 275 SNDRV_CHMAP_RLC, /* back left of center */
284 SNDRV_CHMAP_RRC, /* bac 276 SNDRV_CHMAP_RRC, /* back right of center */
285 0 /* terminator */ 277 0 /* terminator */
286 }; 278 };
287 struct snd_pcm_chmap_elem *chmap; 279 struct snd_pcm_chmap_elem *chmap;
288 const unsigned int *maps; 280 const unsigned int *maps;
289 int c; 281 int c;
290 282
291 if (channels > ARRAY_SIZE(chmap->map)) 283 if (channels > ARRAY_SIZE(chmap->map))
292 return NULL; 284 return NULL;
293 285
294 chmap = kzalloc(sizeof(*chmap), GFP_KE 286 chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
295 if (!chmap) 287 if (!chmap)
296 return NULL; 288 return NULL;
297 289
298 maps = protocol == UAC_VERSION_2 ? uac 290 maps = protocol == UAC_VERSION_2 ? uac2_maps : uac1_maps;
299 chmap->channels = channels; 291 chmap->channels = channels;
300 c = 0; 292 c = 0;
301 293
302 if (bits) { 294 if (bits) {
303 for (; bits && *maps; maps++, !! 295 for (; bits && *maps; maps++, bits >>= 1)
304 if (bits & 1) 296 if (bits & 1)
305 chmap->map[c++ 297 chmap->map[c++] = *maps;
306 if (c == chmap->channe <<
307 break; <<
308 } <<
309 } else { 298 } else {
310 /* If we're missing wChannelCo 299 /* If we're missing wChannelConfig, then guess something
311 to make sure the channel m 300 to make sure the channel map is not skipped entirely */
312 if (channels == 1) 301 if (channels == 1)
313 chmap->map[c++] = SNDR 302 chmap->map[c++] = SNDRV_CHMAP_MONO;
314 else 303 else
315 for (; c < channels && 304 for (; c < channels && *maps; maps++)
316 chmap->map[c++ 305 chmap->map[c++] = *maps;
317 } 306 }
318 307
319 for (; c < channels; c++) 308 for (; c < channels; c++)
320 chmap->map[c] = SNDRV_CHMAP_UN 309 chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
321 310
322 return chmap; 311 return chmap;
323 } 312 }
324 313
325 /* UAC3 device stores channels information in <<
326 static struct <<
327 snd_pcm_chmap_elem *convert_chmap_v3(struct ua <<
328 <<
329 { <<
330 unsigned int channels = cluster->bNrCh <<
331 struct snd_pcm_chmap_elem *chmap; <<
332 void *p = cluster; <<
333 int len, c; <<
334 <<
335 if (channels > ARRAY_SIZE(chmap->map)) <<
336 return NULL; <<
337 <<
338 chmap = kzalloc(sizeof(*chmap), GFP_KE <<
339 if (!chmap) <<
340 return NULL; <<
341 <<
342 len = le16_to_cpu(cluster->wLength); <<
343 c = 0; <<
344 p += sizeof(struct uac3_cluster_header <<
345 <<
346 while (((p - (void *)cluster) < len) & <<
347 struct uac3_cluster_segment_de <<
348 u16 cs_len; <<
349 u8 cs_type; <<
350 <<
351 cs_len = le16_to_cpu(cs_desc-> <<
352 cs_type = cs_desc->bSegmentTyp <<
353 <<
354 if (cs_type == UAC3_CHANNEL_IN <<
355 struct uac3_cluster_in <<
356 unsigned char map; <<
357 <<
358 /* <<
359 * TODO: this conversi <<
360 * after adding UAC3 v <<
361 */ <<
362 switch (is->bChRelatio <<
363 case UAC3_CH_MONO: <<
364 map = SNDRV_CH <<
365 break; <<
366 case UAC3_CH_LEFT: <<
367 case UAC3_CH_FRONT_LEF <<
368 case UAC3_CH_HEADPHONE <<
369 map = SNDRV_CH <<
370 break; <<
371 case UAC3_CH_RIGHT: <<
372 case UAC3_CH_FRONT_RIG <<
373 case UAC3_CH_HEADPHONE <<
374 map = SNDRV_CH <<
375 break; <<
376 case UAC3_CH_FRONT_CEN <<
377 map = SNDRV_CH <<
378 break; <<
379 case UAC3_CH_FRONT_LEF <<
380 map = SNDRV_CH <<
381 break; <<
382 case UAC3_CH_FRONT_RIG <<
383 map = SNDRV_CH <<
384 break; <<
385 case UAC3_CH_SIDE_LEFT <<
386 map = SNDRV_CH <<
387 break; <<
388 case UAC3_CH_SIDE_RIGH <<
389 map = SNDRV_CH <<
390 break; <<
391 case UAC3_CH_BACK_LEFT <<
392 map = SNDRV_CH <<
393 break; <<
394 case UAC3_CH_BACK_RIGH <<
395 map = SNDRV_CH <<
396 break; <<
397 case UAC3_CH_BACK_CENT <<
398 map = SNDRV_CH <<
399 break; <<
400 case UAC3_CH_BACK_LEFT <<
401 map = SNDRV_CH <<
402 break; <<
403 case UAC3_CH_BACK_RIGH <<
404 map = SNDRV_CH <<
405 break; <<
406 case UAC3_CH_TOP_CENTE <<
407 map = SNDRV_CH <<
408 break; <<
409 case UAC3_CH_TOP_FRONT <<
410 map = SNDRV_CH <<
411 break; <<
412 case UAC3_CH_TOP_FRONT <<
413 map = SNDRV_CH <<
414 break; <<
415 case UAC3_CH_TOP_FRONT <<
416 map = SNDRV_CH <<
417 break; <<
418 case UAC3_CH_TOP_FRONT <<
419 map = SNDRV_CH <<
420 break; <<
421 case UAC3_CH_TOP_FRONT <<
422 map = SNDRV_CH <<
423 break; <<
424 case UAC3_CH_TOP_SIDE_ <<
425 map = SNDRV_CH <<
426 break; <<
427 case UAC3_CH_TOP_SIDE_ <<
428 map = SNDRV_CH <<
429 break; <<
430 case UAC3_CH_TOP_BACK_ <<
431 map = SNDRV_CH <<
432 break; <<
433 case UAC3_CH_TOP_BACK_ <<
434 map = SNDRV_CH <<
435 break; <<
436 case UAC3_CH_TOP_BACK_ <<
437 map = SNDRV_CH <<
438 break; <<
439 case UAC3_CH_BOTTOM_CE <<
440 map = SNDRV_CH <<
441 break; <<
442 case UAC3_CH_LOW_FREQU <<
443 map = SNDRV_CH <<
444 break; <<
445 case UAC3_CH_LFE_LEFT: <<
446 map = SNDRV_CH <<
447 break; <<
448 case UAC3_CH_LFE_RIGHT <<
449 map = SNDRV_CH <<
450 break; <<
451 case UAC3_CH_RELATIONS <<
452 default: <<
453 map = SNDRV_CH <<
454 break; <<
455 } <<
456 chmap->map[c++] = map; <<
457 } <<
458 p += cs_len; <<
459 } <<
460 <<
461 if (channels < c) <<
462 pr_err("%s: channel number mis <<
463 <<
464 chmap->channels = channels; <<
465 <<
466 for (; c < channels; c++) <<
467 chmap->map[c] = SNDRV_CHMAP_UN <<
468 <<
469 return chmap; <<
470 } <<
471 <<
472 /* 314 /*
473 * add this endpoint to the chip instance. 315 * add this endpoint to the chip instance.
474 * if a stream with the same endpoint already 316 * if a stream with the same endpoint already exists, append to it.
475 * if not, create a new pcm stream. note, fp i 317 * if not, create a new pcm stream. note, fp is added to the substream
476 * fmt_list and will be freed on the chip inst 318 * fmt_list and will be freed on the chip instance release. do not free
477 * fp or do remove it from the substream fmt_l 319 * fp or do remove it from the substream fmt_list to avoid double-free.
478 */ 320 */
479 static int __snd_usb_add_audio_stream(struct s !! 321 int snd_usb_add_audio_stream(struct snd_usb_audio *chip,
480 int stre !! 322 int stream,
481 struct a !! 323 struct audioformat *fp)
482 struct s <<
483 <<
484 { 324 {
485 struct snd_usb_stream *as; 325 struct snd_usb_stream *as;
486 struct snd_usb_substream *subs; 326 struct snd_usb_substream *subs;
487 struct snd_pcm *pcm; 327 struct snd_pcm *pcm;
488 int err; 328 int err;
489 329
490 list_for_each_entry(as, &chip->pcm_lis 330 list_for_each_entry(as, &chip->pcm_list, list) {
491 if (as->fmt_type != fp->fmt_ty 331 if (as->fmt_type != fp->fmt_type)
492 continue; 332 continue;
493 subs = &as->substream[stream]; 333 subs = &as->substream[stream];
494 if (subs->ep_num == fp->endpoi 334 if (subs->ep_num == fp->endpoint) {
495 list_add_tail(&fp->lis 335 list_add_tail(&fp->list, &subs->fmt_list);
496 subs->num_formats++; 336 subs->num_formats++;
497 subs->formats |= fp->f 337 subs->formats |= fp->formats;
498 return 0; 338 return 0;
499 } 339 }
500 } 340 }
501 <<
502 if (chip->card->registered) <<
503 chip->need_delayed_register = <<
504 <<
505 /* look for an empty stream */ 341 /* look for an empty stream */
506 list_for_each_entry(as, &chip->pcm_lis 342 list_for_each_entry(as, &chip->pcm_list, list) {
507 if (as->fmt_type != fp->fmt_ty 343 if (as->fmt_type != fp->fmt_type)
508 continue; 344 continue;
509 subs = &as->substream[stream]; 345 subs = &as->substream[stream];
510 if (subs->ep_num) 346 if (subs->ep_num)
511 continue; 347 continue;
512 err = snd_pcm_new_stream(as->p 348 err = snd_pcm_new_stream(as->pcm, stream, 1);
513 if (err < 0) 349 if (err < 0)
514 return err; 350 return err;
515 snd_usb_init_substream(as, str !! 351 snd_usb_init_substream(as, stream, fp);
516 return add_chmap(as->pcm, stre 352 return add_chmap(as->pcm, stream, subs);
517 } 353 }
518 354
519 /* create a new pcm */ 355 /* create a new pcm */
520 as = kzalloc(sizeof(*as), GFP_KERNEL); 356 as = kzalloc(sizeof(*as), GFP_KERNEL);
521 if (!as) 357 if (!as)
522 return -ENOMEM; 358 return -ENOMEM;
523 as->pcm_index = chip->pcm_devs; 359 as->pcm_index = chip->pcm_devs;
524 as->chip = chip; 360 as->chip = chip;
525 as->fmt_type = fp->fmt_type; 361 as->fmt_type = fp->fmt_type;
526 err = snd_pcm_new(chip->card, "USB Aud 362 err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs,
527 stream == SNDRV_PCM_ 363 stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0,
528 stream == SNDRV_PCM_ 364 stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1,
529 &pcm); 365 &pcm);
530 if (err < 0) { 366 if (err < 0) {
531 kfree(as); 367 kfree(as);
532 return err; 368 return err;
533 } 369 }
534 as->pcm = pcm; 370 as->pcm = pcm;
535 pcm->private_data = as; 371 pcm->private_data = as;
536 pcm->private_free = snd_usb_audio_pcm_ 372 pcm->private_free = snd_usb_audio_pcm_free;
537 pcm->info_flags = 0; 373 pcm->info_flags = 0;
538 if (chip->pcm_devs > 0) 374 if (chip->pcm_devs > 0)
539 sprintf(pcm->name, "USB Audio 375 sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs);
540 else 376 else
541 strcpy(pcm->name, "USB Audio") 377 strcpy(pcm->name, "USB Audio");
542 378
543 snd_usb_init_substream(as, stream, fp, !! 379 snd_usb_init_substream(as, stream, fp);
544 380
545 /* 381 /*
546 * Keep using head insertion for M-Aud 382 * Keep using head insertion for M-Audio Audiophile USB (tm) which has a
547 * fix to swap capture stream order in 383 * fix to swap capture stream order in conf/cards/USB-audio.conf
548 */ 384 */
549 if (chip->usb_id == USB_ID(0x0763, 0x2 385 if (chip->usb_id == USB_ID(0x0763, 0x2003))
550 list_add(&as->list, &chip->pcm 386 list_add(&as->list, &chip->pcm_list);
551 else 387 else
552 list_add_tail(&as->list, &chip 388 list_add_tail(&as->list, &chip->pcm_list);
553 389
554 chip->pcm_devs++; 390 chip->pcm_devs++;
555 391
556 snd_usb_proc_pcm_format_add(as); 392 snd_usb_proc_pcm_format_add(as);
557 393
558 return add_chmap(pcm, stream, &as->sub 394 return add_chmap(pcm, stream, &as->substream[stream]);
559 } 395 }
560 396
561 int snd_usb_add_audio_stream(struct snd_usb_au <<
562 int stream, <<
563 struct audioforma <<
564 { <<
565 return __snd_usb_add_audio_stream(chip <<
566 } <<
567 <<
568 static int snd_usb_add_audio_stream_v3(struct <<
569 int str <<
570 struct <<
571 struct <<
572 { <<
573 return __snd_usb_add_audio_stream(chip <<
574 } <<
575 <<
576 static int parse_uac_endpoint_attributes(struc 397 static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip,
577 struc 398 struct usb_host_interface *alts,
578 int p 399 int protocol, int iface_no)
579 { 400 {
580 /* parsed with a v1 header here. that' 401 /* parsed with a v1 header here. that's ok as we only look at the
581 * header first which is the same for 402 * header first which is the same for both versions */
582 struct uac_iso_endpoint_descriptor *cs 403 struct uac_iso_endpoint_descriptor *csep;
583 struct usb_interface_descriptor *altsd 404 struct usb_interface_descriptor *altsd = get_iface_desc(alts);
584 int attributes = 0; 405 int attributes = 0;
585 406
586 csep = snd_usb_find_desc(alts->endpoin 407 csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT);
587 408
588 /* Creamware Noah has this descriptor 409 /* Creamware Noah has this descriptor after the 2nd endpoint */
589 if (!csep && altsd->bNumEndpoints >= 2 410 if (!csep && altsd->bNumEndpoints >= 2)
590 csep = snd_usb_find_desc(alts- 411 csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);
591 412
592 /* 413 /*
593 * If we can't locate the USB_DT_CS_EN 414 * If we can't locate the USB_DT_CS_ENDPOINT descriptor in the extra
594 * bytes after the first endpoint, go 415 * bytes after the first endpoint, go search the entire interface.
595 * Some devices have it directly *befo 416 * Some devices have it directly *before* the standard endpoint.
596 */ 417 */
597 if (!csep) 418 if (!csep)
598 csep = snd_usb_find_desc(alts- 419 csep = snd_usb_find_desc(alts->extra, alts->extralen, NULL, USB_DT_CS_ENDPOINT);
599 420
600 if (!csep || csep->bLength < 7 || 421 if (!csep || csep->bLength < 7 ||
601 csep->bDescriptorSubtype != UAC_EP !! 422 csep->bDescriptorSubtype != UAC_EP_GENERAL) {
602 goto error; !! 423 usb_audio_warn(chip,
>> 424 "%u:%d : no or invalid class specific endpoint descriptor\n",
>> 425 iface_no, altsd->bAlternateSetting);
>> 426 return 0;
>> 427 }
603 428
604 if (protocol == UAC_VERSION_1) { 429 if (protocol == UAC_VERSION_1) {
605 attributes = csep->bmAttribute 430 attributes = csep->bmAttributes;
606 } else if (protocol == UAC_VERSION_2) !! 431 } else {
607 struct uac2_iso_endpoint_descr 432 struct uac2_iso_endpoint_descriptor *csep2 =
608 (struct uac2_iso_endpo 433 (struct uac2_iso_endpoint_descriptor *) csep;
609 434
610 if (csep2->bLength < sizeof(*c <<
611 goto error; <<
612 attributes = csep->bmAttribute 435 attributes = csep->bmAttributes & UAC_EP_CS_ATTR_FILL_MAX;
613 436
614 /* emulate the endpoint attrib 437 /* emulate the endpoint attributes of a v1 device */
615 if (csep2->bmControls & UAC2_C 438 if (csep2->bmControls & UAC2_CONTROL_PITCH)
616 attributes |= UAC_EP_C 439 attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
617 } else { /* UAC_VERSION_3 */ <<
618 struct uac3_iso_endpoint_descr <<
619 (struct uac3_iso_endpo <<
620 <<
621 if (csep3->bLength < sizeof(*c <<
622 goto error; <<
623 /* emulate the endpoint attrib <<
624 if (le32_to_cpu(csep3->bmContr <<
625 attributes |= UAC_EP_C <<
626 } 440 }
627 441
628 return attributes; 442 return attributes;
629 <<
630 error: <<
631 usb_audio_warn(chip, <<
632 "%u:%d : no or invalid <<
633 iface_no, altsd->bAlter <<
634 return 0; <<
635 } 443 }
636 444
637 /* find an input terminal descriptor (either U 445 /* find an input terminal descriptor (either UAC1 or UAC2) with the given
638 * terminal id 446 * terminal id
639 */ 447 */
640 static void * 448 static void *
641 snd_usb_find_input_terminal_descriptor(struct 449 snd_usb_find_input_terminal_descriptor(struct usb_host_interface *ctrl_iface,
642 int ter !! 450 int terminal_id)
643 { 451 {
644 struct uac2_input_terminal_descriptor 452 struct uac2_input_terminal_descriptor *term = NULL;
645 453
646 while ((term = snd_usb_find_csint_desc 454 while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
647 455 ctrl_iface->extralen,
648 456 term, UAC_INPUT_TERMINAL))) {
649 if (!snd_usb_validate_audio_de <<
650 continue; <<
651 if (term->bTerminalID == termi 457 if (term->bTerminalID == terminal_id)
652 return term; 458 return term;
653 } 459 }
654 460
655 return NULL; 461 return NULL;
656 } 462 }
657 463
658 static void * !! 464 static struct uac2_output_terminal_descriptor *
659 snd_usb_find_output_terminal_descriptor(struct !! 465 snd_usb_find_output_terminal_descriptor(struct usb_host_interface *ctrl_iface,
660 int te !! 466 int terminal_id)
661 { 467 {
662 /* OK to use with both UAC2 and UAC3 * <<
663 struct uac2_output_terminal_descriptor 468 struct uac2_output_terminal_descriptor *term = NULL;
664 469
665 while ((term = snd_usb_find_csint_desc 470 while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
666 471 ctrl_iface->extralen,
667 472 term, UAC_OUTPUT_TERMINAL))) {
668 if (!snd_usb_validate_audio_de <<
669 continue; <<
670 if (term->bTerminalID == termi 473 if (term->bTerminalID == terminal_id)
671 return term; 474 return term;
672 } 475 }
673 476
674 return NULL; 477 return NULL;
675 } 478 }
676 479
677 static struct audioformat * !! 480 int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
678 audio_format_alloc_init(struct snd_usb_audio * <<
679 struct usb_host_interfa <<
680 int protocol, int iface <<
681 int altno, int num_chan <<
682 { <<
683 struct audioformat *fp; <<
684 <<
685 fp = kzalloc(sizeof(*fp), GFP_KERNEL); <<
686 if (!fp) <<
687 return NULL; <<
688 <<
689 fp->iface = iface_no; <<
690 fp->altsetting = altno; <<
691 fp->altset_idx = altset_idx; <<
692 fp->endpoint = get_endpoint(alts, 0)-> <<
693 fp->ep_attr = get_endpoint(alts, 0)->b <<
694 fp->datainterval = snd_usb_parse_datai <<
695 fp->protocol = protocol; <<
696 fp->maxpacksize = le16_to_cpu(get_endp <<
697 fp->channels = num_channels; <<
698 if (snd_usb_get_speed(chip->dev) == US <<
699 fp->maxpacksize = (((fp->maxpa <<
700 * (fp->maxpack <<
701 fp->clock = clock; <<
702 INIT_LIST_HEAD(&fp->list); <<
703 <<
704 return fp; <<
705 } <<
706 <<
707 static struct audioformat * <<
708 snd_usb_get_audioformat_uac12(struct snd_usb_a <<
709 struct usb_host_ <<
710 int protocol, in <<
711 int altno, int s <<
712 { <<
713 struct usb_device *dev = chip->dev; <<
714 struct uac_format_type_i_continuous_de <<
715 unsigned int num_channels = 0, chconfi <<
716 struct usb_host_interface *ctrl_intf; <<
717 struct audioformat *fp; <<
718 int clock = 0; <<
719 u64 format; <<
720 <<
721 ctrl_intf = snd_usb_find_ctrl_interfac <<
722 <<
723 /* get audio formats */ <<
724 if (protocol == UAC_VERSION_1) { <<
725 struct uac1_as_header_descript <<
726 snd_usb_find_csint_des <<
727 <<
728 struct uac_input_terminal_desc <<
729 <<
730 if (!as) { <<
731 dev_err(&dev->dev, <<
732 "%u:%d : UAC_A <<
733 iface_no, altn <<
734 return NULL; <<
735 } <<
736 <<
737 if (as->bLength < sizeof(*as)) <<
738 dev_err(&dev->dev, <<
739 "%u:%d : inval <<
740 iface_no, altn <<
741 return NULL; <<
742 } <<
743 <<
744 format = le16_to_cpu(as->wForm <<
745 <<
746 iterm = snd_usb_find_input_ter <<
747 <<
748 <<
749 if (iterm) { <<
750 num_channels = iterm-> <<
751 chconfig = le16_to_cpu <<
752 } <<
753 } else { /* UAC_VERSION_2 */ <<
754 struct uac2_input_terminal_des <<
755 struct uac2_output_terminal_de <<
756 struct uac2_as_header_descript <<
757 snd_usb_find_csint_des <<
758 <<
759 <<
760 if (!as) { <<
761 dev_err(&dev->dev, <<
762 "%u:%d : UAC_A <<
763 iface_no, altn <<
764 return NULL; <<
765 } <<
766 <<
767 if (as->bLength < sizeof(*as)) <<
768 dev_err(&dev->dev, <<
769 "%u:%d : inval <<
770 iface_no, altn <<
771 return NULL; <<
772 } <<
773 <<
774 num_channels = as->bNrChannels <<
775 format = le32_to_cpu(as->bmFor <<
776 chconfig = le32_to_cpu(as->bmC <<
777 <<
778 /* <<
779 * lookup the terminal associa <<
780 * to extract the clock <<
781 */ <<
782 input_term = snd_usb_find_inpu <<
783 <<
784 <<
785 if (input_term) { <<
786 clock = input_term->bC <<
787 if (!chconfig && (num_ <<
788 chconfig = le3 <<
789 goto found_clock; <<
790 } <<
791 <<
792 output_term = snd_usb_find_out <<
793 <<
794 <<
795 if (output_term) { <<
796 clock = output_term->b <<
797 goto found_clock; <<
798 } <<
799 <<
800 dev_err(&dev->dev, <<
801 "%u:%d : bogus bTermin <<
802 iface_no, altno, as->b <<
803 return NULL; <<
804 } <<
805 <<
806 found_clock: <<
807 /* get format type */ <<
808 fmt = snd_usb_find_csint_desc(alts->ex <<
809 NULL, UA <<
810 if (!fmt) { <<
811 dev_err(&dev->dev, <<
812 "%u:%d : no UAC_FORMAT <<
813 iface_no, altno); <<
814 return NULL; <<
815 } <<
816 if (((protocol == UAC_VERSION_1) && (f <<
817 || ((protocol == UAC_V <<
818 (fmt-> <<
819 dev_err(&dev->dev, <<
820 "%u:%d : invalid UAC_F <<
821 iface_no, altno); <<
822 return NULL; <<
823 } <<
824 <<
825 /* <<
826 * Blue Microphones workaround: The la <<
827 * identical with the previous one, ex <<
828 * packet size, but is actually a misl <<
829 * setting; ignore it. <<
830 * <<
831 * Part 2: analyze quirk flag and form <<
832 */ <<
833 if (bm_quirk && fmt->bNrChannels == 1 <<
834 return NULL; <<
835 <<
836 fp = audio_format_alloc_init(chip, alt <<
837 altset_id <<
838 if (!fp) <<
839 return ERR_PTR(-ENOMEM); <<
840 <<
841 fp->attributes = parse_uac_endpoint_at <<
842 <<
843 <<
844 /* some quirks for attributes here */ <<
845 snd_usb_audioformat_attributes_quirk(c <<
846 <<
847 /* ok, let's parse further... */ <<
848 if (snd_usb_parse_audio_format(chip, f <<
849 fmt, s <<
850 audioformat_free(fp); <<
851 return NULL; <<
852 } <<
853 <<
854 /* Create chmap */ <<
855 if (fp->channels != num_channels) <<
856 chconfig = 0; <<
857 <<
858 fp->chmap = convert_chmap(fp->channels <<
859 <<
860 return fp; <<
861 } <<
862 <<
863 static struct audioformat * <<
864 snd_usb_get_audioformat_uac3(struct snd_usb_au <<
865 struct usb_host_i <<
866 struct snd_usb_po <<
867 int iface_no, int <<
868 int altno, int st <<
869 { <<
870 struct usb_device *dev = chip->dev; <<
871 struct uac3_input_terminal_descriptor <<
872 struct uac3_output_terminal_descriptor <<
873 struct uac3_cluster_header_descriptor <<
874 struct uac3_as_header_descriptor *as = <<
875 struct uac3_hc_descriptor_header hc_he <<
876 struct usb_host_interface *ctrl_intf; <<
877 struct snd_pcm_chmap_elem *chmap; <<
878 struct snd_usb_power_domain *pd; <<
879 unsigned char badd_profile; <<
880 u64 badd_formats = 0; <<
881 unsigned int num_channels; <<
882 struct audioformat *fp; <<
883 u16 cluster_id, wLength; <<
884 int clock = 0; <<
885 int err; <<
886 <<
887 badd_profile = chip->badd_profile; <<
888 ctrl_intf = snd_usb_find_ctrl_interfac <<
889 <<
890 if (badd_profile >= UAC3_FUNCTION_SUBC <<
891 unsigned int maxpacksize = <<
892 le16_to_cpu(get_endpoi <<
893 <<
894 switch (maxpacksize) { <<
895 default: <<
896 dev_err(&dev->dev, <<
897 "%u:%d : incor <<
898 iface_no, altn <<
899 return NULL; <<
900 case UAC3_BADD_EP_MAXPSIZE_SYN <<
901 case UAC3_BADD_EP_MAXPSIZE_ASY <<
902 badd_formats = SNDRV_P <<
903 num_channels = 1; <<
904 break; <<
905 case UAC3_BADD_EP_MAXPSIZE_SYN <<
906 case UAC3_BADD_EP_MAXPSIZE_ASY <<
907 badd_formats = SNDRV_P <<
908 num_channels = 1; <<
909 break; <<
910 case UAC3_BADD_EP_MAXPSIZE_SYN <<
911 case UAC3_BADD_EP_MAXPSIZE_ASY <<
912 badd_formats = SNDRV_P <<
913 num_channels = 2; <<
914 break; <<
915 case UAC3_BADD_EP_MAXPSIZE_SYN <<
916 case UAC3_BADD_EP_MAXPSIZE_ASY <<
917 badd_formats = SNDRV_P <<
918 num_channels = 2; <<
919 break; <<
920 } <<
921 <<
922 chmap = kzalloc(sizeof(*chmap) <<
923 if (!chmap) <<
924 return ERR_PTR(-ENOMEM <<
925 <<
926 if (num_channels == 1) { <<
927 chmap->map[0] = SNDRV_ <<
928 } else { <<
929 chmap->map[0] = SNDRV_ <<
930 chmap->map[1] = SNDRV_ <<
931 } <<
932 <<
933 chmap->channels = num_channels <<
934 clock = UAC3_BADD_CS_ID9; <<
935 goto found_clock; <<
936 } <<
937 <<
938 as = snd_usb_find_csint_desc(alts->ext <<
939 NULL, UAC <<
940 if (!as) { <<
941 dev_err(&dev->dev, <<
942 "%u:%d : UAC_AS_GENERA <<
943 iface_no, altno); <<
944 return NULL; <<
945 } <<
946 <<
947 if (as->bLength < sizeof(*as)) { <<
948 dev_err(&dev->dev, <<
949 "%u:%d : invalid UAC_A <<
950 iface_no, altno); <<
951 return NULL; <<
952 } <<
953 <<
954 cluster_id = le16_to_cpu(as->wClusterD <<
955 if (!cluster_id) { <<
956 dev_err(&dev->dev, <<
957 "%u:%d : no cluster de <<
958 iface_no, altno); <<
959 return NULL; <<
960 } <<
961 <<
962 /* <<
963 * Get number of channels and channel <<
964 * High Capability Cluster Descriptor <<
965 * <<
966 * First step: get High Capability hea <<
967 * read size of Cluster Descriptor <<
968 */ <<
969 err = snd_usb_ctl_msg(chip->dev, <<
970 usb_rcvctrlpipe(chip-> <<
971 UAC3_CS_REQ_HIGH_CAPAB <<
972 USB_RECIP_INTERFACE | <<
973 cluster_id, <<
974 snd_usb_ctrl_intf(ctrl <<
975 &hc_header, sizeof(hc_ <<
976 if (err < 0) <<
977 return ERR_PTR(err); <<
978 else if (err != sizeof(hc_header)) { <<
979 dev_err(&dev->dev, <<
980 "%u:%d : can't get Hig <<
981 iface_no, altno); <<
982 return ERR_PTR(-EIO); <<
983 } <<
984 <<
985 /* <<
986 * Second step: allocate needed amount <<
987 * and request Cluster Descriptor <<
988 */ <<
989 wLength = le16_to_cpu(hc_header.wLengt <<
990 cluster = kzalloc(wLength, GFP_KERNEL) <<
991 if (!cluster) <<
992 return ERR_PTR(-ENOMEM); <<
993 err = snd_usb_ctl_msg(chip->dev, <<
994 usb_rcvctrlpipe(chip-> <<
995 UAC3_CS_REQ_HIGH_CAPAB <<
996 USB_RECIP_INTERFACE | <<
997 cluster_id, <<
998 snd_usb_ctrl_intf(ctrl <<
999 cluster, wLength); <<
1000 if (err < 0) { <<
1001 kfree(cluster); <<
1002 return ERR_PTR(err); <<
1003 } else if (err != wLength) { <<
1004 dev_err(&dev->dev, <<
1005 "%u:%d : can't get Cl <<
1006 iface_no, altno); <<
1007 kfree(cluster); <<
1008 return ERR_PTR(-EIO); <<
1009 } <<
1010 <<
1011 num_channels = cluster->bNrChannels; <<
1012 chmap = convert_chmap_v3(cluster); <<
1013 kfree(cluster); <<
1014 <<
1015 /* <<
1016 * lookup the terminal associated to <<
1017 * to extract the clock <<
1018 */ <<
1019 input_term = snd_usb_find_input_termi <<
1020 <<
1021 <<
1022 if (input_term) { <<
1023 clock = input_term->bCSourceI <<
1024 goto found_clock; <<
1025 } <<
1026 <<
1027 output_term = snd_usb_find_output_ter <<
1028 <<
1029 <<
1030 if (output_term) { <<
1031 clock = output_term->bCSource <<
1032 goto found_clock; <<
1033 } <<
1034 <<
1035 dev_err(&dev->dev, "%u:%d : bogus bTe <<
1036 iface_no, altno, as-> <<
1037 kfree(chmap); <<
1038 return NULL; <<
1039 <<
1040 found_clock: <<
1041 fp = audio_format_alloc_init(chip, al <<
1042 altset_i <<
1043 if (!fp) { <<
1044 kfree(chmap); <<
1045 return ERR_PTR(-ENOMEM); <<
1046 } <<
1047 <<
1048 fp->chmap = chmap; <<
1049 <<
1050 if (badd_profile >= UAC3_FUNCTION_SUB <<
1051 fp->attributes = 0; /* No att <<
1052 <<
1053 fp->fmt_type = UAC_FORMAT_TYP <<
1054 fp->formats = badd_formats; <<
1055 <<
1056 fp->nr_rates = 0; /* SN <<
1057 fp->rate_min = UAC3_BADD_SAMP <<
1058 fp->rate_max = UAC3_BADD_SAMP <<
1059 fp->rates = SNDRV_PCM_RATE_CO <<
1060 <<
1061 pd = kzalloc(sizeof(*pd), GFP <<
1062 if (!pd) { <<
1063 audioformat_free(fp); <<
1064 return NULL; <<
1065 } <<
1066 pd->pd_id = (stream == SNDRV_ <<
1067 UAC3_ <<
1068 pd->pd_d1d0_rec = UAC3_BADD_P <<
1069 pd->pd_d2d0_rec = UAC3_BADD_P <<
1070 pd->ctrl_iface = ctrl_intf; <<
1071 <<
1072 } else { <<
1073 fp->attributes = parse_uac_en <<
1074 <<
1075 <<
1076 <<
1077 pd = snd_usb_find_power_domai <<
1078 <<
1079 <<
1080 /* ok, let's parse further... <<
1081 if (snd_usb_parse_audio_forma <<
1082 kfree(pd); <<
1083 audioformat_free(fp); <<
1084 return NULL; <<
1085 } <<
1086 } <<
1087 <<
1088 if (pd) <<
1089 *pd_out = pd; <<
1090 <<
1091 return fp; <<
1092 } <<
1093 <<
1094 static int __snd_usb_parse_audio_interface(st <<
1095 in <<
1096 bo <<
1097 { 481 {
1098 struct usb_device *dev; 482 struct usb_device *dev;
1099 struct usb_interface *iface; 483 struct usb_interface *iface;
1100 struct usb_host_interface *alts; 484 struct usb_host_interface *alts;
1101 struct usb_interface_descriptor *alts 485 struct usb_interface_descriptor *altsd;
1102 int i, altno, err, stream; 486 int i, altno, err, stream;
>> 487 unsigned int format = 0, num_channels = 0;
1103 struct audioformat *fp = NULL; 488 struct audioformat *fp = NULL;
1104 struct snd_usb_power_domain *pd = NUL !! 489 int num, protocol, clock = 0;
1105 bool set_iface_first; !! 490 struct uac_format_type_i_continuous_descriptor *fmt;
1106 int num, protocol; !! 491 unsigned int chconfig;
1107 492
1108 dev = chip->dev; 493 dev = chip->dev;
1109 494
1110 /* parse the interface's altsettings 495 /* parse the interface's altsettings */
1111 iface = usb_ifnum_to_if(dev, iface_no 496 iface = usb_ifnum_to_if(dev, iface_no);
1112 497
1113 num = iface->num_altsetting; 498 num = iface->num_altsetting;
1114 499
1115 /* 500 /*
1116 * Dallas DS4201 workaround: It prese 501 * Dallas DS4201 workaround: It presents 5 altsettings, but the last
1117 * one misses syncpipe, and does not 502 * one misses syncpipe, and does not produce any sound.
1118 */ 503 */
1119 if (chip->usb_id == USB_ID(0x04fa, 0x !! 504 if (chip->usb_id == USB_ID(0x04fa, 0x4201))
1120 num = 4; 505 num = 4;
1121 506
1122 for (i = 0; i < num; i++) { 507 for (i = 0; i < num; i++) {
1123 alts = &iface->altsetting[i]; 508 alts = &iface->altsetting[i];
1124 altsd = get_iface_desc(alts); 509 altsd = get_iface_desc(alts);
1125 protocol = altsd->bInterfaceP 510 protocol = altsd->bInterfaceProtocol;
1126 /* skip invalid one */ 511 /* skip invalid one */
1127 if (((altsd->bInterfaceClass 512 if (((altsd->bInterfaceClass != USB_CLASS_AUDIO ||
1128 (altsd->bInterfaceSubCl 513 (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING &&
1129 altsd->bInterfaceSubCl 514 altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC)) &&
1130 altsd->bInterfaceClass ! 515 altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
1131 altsd->bNumEndpoints < 1 516 altsd->bNumEndpoints < 1 ||
1132 le16_to_cpu(get_endpoint( 517 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0)
1133 continue; 518 continue;
1134 /* must be isochronous */ 519 /* must be isochronous */
1135 if ((get_endpoint(alts, 0)->b 520 if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1136 USB_ENDPOINT_XFER_ISOC) 521 USB_ENDPOINT_XFER_ISOC)
1137 continue; 522 continue;
1138 /* check direction */ 523 /* check direction */
1139 stream = (get_endpoint(alts, 524 stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ?
1140 SNDRV_PCM_STREAM_CAPT 525 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
1141 altno = altsd->bAlternateSett 526 altno = altsd->bAlternateSetting;
1142 527
1143 if (snd_usb_apply_interface_q 528 if (snd_usb_apply_interface_quirk(chip, iface_no, altno))
1144 continue; 529 continue;
1145 530
1146 /* 531 /*
1147 * Roland audio streaming int 532 * Roland audio streaming interfaces are marked with protocols
1148 * 0/1/2, but are UAC 1 compa 533 * 0/1/2, but are UAC 1 compatible.
1149 */ 534 */
1150 if (USB_ID_VENDOR(chip->usb_i 535 if (USB_ID_VENDOR(chip->usb_id) == 0x0582 &&
1151 altsd->bInterfaceClass == 536 altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
1152 protocol <= 2) 537 protocol <= 2)
1153 protocol = UAC_VERSIO 538 protocol = UAC_VERSION_1;
1154 539
>> 540 chconfig = 0;
>> 541 /* get audio formats */
1155 switch (protocol) { 542 switch (protocol) {
1156 default: 543 default:
1157 dev_dbg(&dev->dev, "% 544 dev_dbg(&dev->dev, "%u:%d: unknown interface protocol %#02x, assuming v1\n",
1158 iface_no, alt 545 iface_no, altno, protocol);
1159 protocol = UAC_VERSIO 546 protocol = UAC_VERSION_1;
1160 fallthrough; !! 547 /* fall through */
1161 case UAC_VERSION_1: <<
1162 case UAC_VERSION_2: { <<
1163 int bm_quirk = 0; <<
1164 548
1165 /* !! 549 case UAC_VERSION_1: {
1166 * Blue Microphones w !! 550 struct uac1_as_header_descriptor *as =
1167 * identical with the !! 551 snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
1168 * packet size, but i !! 552 struct uac_input_terminal_descriptor *iterm;
1169 * setting; ignore it !! 553
1170 * !! 554 if (!as) {
1171 * Part 1: prepare qu !! 555 dev_err(&dev->dev,
1172 */ !! 556 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
1173 if (altno == 2 && num !! 557 iface_no, altno);
1174 fp && fp->altsett !! 558 continue;
1175 fp->formats == SN !! 559 }
1176 protocol == UAC_V !! 560
1177 le16_to_cpu(get_e !! 561 if (as->bLength < sizeof(*as)) {
1178 !! 562 dev_err(&dev->dev,
1179 bm_quirk = 1; !! 563 "%u:%d : invalid UAC_AS_GENERAL desc\n",
>> 564 iface_no, altno);
>> 565 continue;
>> 566 }
>> 567
>> 568 format = le16_to_cpu(as->wFormatTag); /* remember the format value */
>> 569
>> 570 iterm = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
>> 571 as->bTerminalLink);
>> 572 if (iterm) {
>> 573 num_channels = iterm->bNrChannels;
>> 574 chconfig = le16_to_cpu(iterm->wChannelConfig);
>> 575 }
1180 576
1181 fp = snd_usb_get_audi <<
1182 <<
1183 <<
1184 break; <<
1185 } <<
1186 case UAC_VERSION_3: <<
1187 fp = snd_usb_get_audi <<
1188 <<
1189 break; 577 break;
1190 } 578 }
1191 579
1192 if (!fp) !! 580 case UAC_VERSION_2: {
1193 continue; !! 581 struct uac2_input_terminal_descriptor *input_term;
1194 else if (IS_ERR(fp)) !! 582 struct uac2_output_terminal_descriptor *output_term;
1195 return PTR_ERR(fp); !! 583 struct uac2_as_header_descriptor *as =
>> 584 snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
>> 585
>> 586 if (!as) {
>> 587 dev_err(&dev->dev,
>> 588 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
>> 589 iface_no, altno);
>> 590 continue;
>> 591 }
1196 592
1197 if (fp->fmt_type != UAC_FORMA !! 593 if (as->bLength < sizeof(*as)) {
1198 *has_non_pcm = true; !! 594 dev_err(&dev->dev,
1199 if ((fp->fmt_type == UAC_FORM !! 595 "%u:%d : invalid UAC_AS_GENERAL desc\n",
1200 audioformat_free(fp); !! 596 iface_no, altno);
1201 kfree(pd); !! 597 continue;
1202 fp = NULL; !! 598 }
1203 pd = NULL; <<
1204 continue; <<
1205 } <<
1206 599
1207 snd_usb_audioformat_set_sync_ !! 600 num_channels = as->bNrChannels;
>> 601 format = le32_to_cpu(as->bmFormats);
>> 602 chconfig = le32_to_cpu(as->bmChannelConfig);
>> 603
>> 604 /* lookup the terminal associated to this interface
>> 605 * to extract the clock */
>> 606 input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
>> 607 as->bTerminalLink);
>> 608 if (input_term) {
>> 609 clock = input_term->bCSourceID;
>> 610 if (!chconfig && (num_channels == input_term->bNrChannels))
>> 611 chconfig = le32_to_cpu(input_term->bmChannelConfig);
>> 612 break;
>> 613 }
1208 614
1209 dev_dbg(&dev->dev, "%u:%d: ad !! 615 output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf,
1210 if (protocol == UAC_VERSION_3 !! 616 as->bTerminalLink);
1211 err = snd_usb_add_aud !! 617 if (output_term) {
1212 else !! 618 clock = output_term->bCSourceID;
1213 err = snd_usb_add_aud !! 619 break;
>> 620 }
1214 621
1215 if (err < 0) { !! 622 dev_err(&dev->dev,
1216 audioformat_free(fp); !! 623 "%u:%d : bogus bTerminalLink %d\n",
1217 kfree(pd); !! 624 iface_no, altno, as->bTerminalLink);
1218 return err; !! 625 continue;
>> 626 }
1219 } 627 }
1220 628
1221 /* add endpoints */ !! 629 /* get format type */
1222 err = snd_usb_add_endpoint(ch !! 630 fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_FORMAT_TYPE);
1223 SN !! 631 if (!fmt) {
1224 if (err < 0) !! 632 dev_err(&dev->dev,
1225 return err; !! 633 "%u:%d : no UAC_FORMAT_TYPE desc\n",
1226 !! 634 iface_no, altno);
1227 if (fp->sync_ep) { !! 635 continue;
1228 err = snd_usb_add_end !! 636 }
1229 !! 637 if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8)) ||
1230 !! 638 ((protocol == UAC_VERSION_2) && (fmt->bLength < 6))) {
1231 !! 639 dev_err(&dev->dev,
1232 if (err < 0) !! 640 "%u:%d : invalid UAC_FORMAT_TYPE desc\n",
1233 return err; !! 641 iface_no, altno);
>> 642 continue;
1234 } 643 }
1235 644
1236 set_iface_first = false; !! 645 /*
1237 if (protocol == UAC_VERSION_1 !! 646 * Blue Microphones workaround: The last altsetting is identical
1238 (chip->quirk_flags & QUIR !! 647 * with the previous one, except for a larger packet size, but
1239 set_iface_first = tru !! 648 * is actually a mislabeled two-channel setting; ignore it.
>> 649 */
>> 650 if (fmt->bNrChannels == 1 &&
>> 651 fmt->bSubframeSize == 2 &&
>> 652 altno == 2 && num == 3 &&
>> 653 fp && fp->altsetting == 1 && fp->channels == 1 &&
>> 654 fp->formats == SNDRV_PCM_FMTBIT_S16_LE &&
>> 655 protocol == UAC_VERSION_1 &&
>> 656 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) ==
>> 657 fp->maxpacksize * 2)
>> 658 continue;
1240 659
1241 /* try to set the interface.. !! 660 fp = kzalloc(sizeof(*fp), GFP_KERNEL);
1242 usb_set_interface(chip->dev, !! 661 if (! fp) {
1243 if (set_iface_first) !! 662 dev_err(&dev->dev, "cannot malloc\n");
1244 usb_set_interface(chi !! 663 return -ENOMEM;
1245 snd_usb_init_pitch(chip, fp); !! 664 }
1246 snd_usb_init_sample_rate(chip <<
1247 if (!set_iface_first) <<
1248 usb_set_interface(chi <<
1249 } <<
1250 return 0; <<
1251 } <<
1252 665
1253 int snd_usb_parse_audio_interface(struct snd_ !! 666 fp->iface = iface_no;
1254 { !! 667 fp->altsetting = altno;
1255 int err; !! 668 fp->altset_idx = i;
1256 bool has_non_pcm = false; !! 669 fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
>> 670 fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
>> 671 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
>> 672 fp->protocol = protocol;
>> 673 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
>> 674 fp->channels = num_channels;
>> 675 if (snd_usb_get_speed(dev) == USB_SPEED_HIGH)
>> 676 fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
>> 677 * (fp->maxpacksize & 0x7ff);
>> 678 fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol, iface_no);
>> 679 fp->clock = clock;
>> 680 INIT_LIST_HEAD(&fp->list);
>> 681
>> 682 /* some quirks for attributes here */
>> 683
>> 684 switch (chip->usb_id) {
>> 685 case USB_ID(0x0a92, 0x0053): /* AudioTrak Optoplay */
>> 686 /* Optoplay sets the sample rate attribute although
>> 687 * it seems not supporting it in fact.
>> 688 */
>> 689 fp->attributes &= ~UAC_EP_CS_ATTR_SAMPLE_RATE;
>> 690 break;
>> 691 case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
>> 692 case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
>> 693 /* doesn't set the sample rate attribute, but supports it */
>> 694 fp->attributes |= UAC_EP_CS_ATTR_SAMPLE_RATE;
>> 695 break;
>> 696 case USB_ID(0x0763, 0x2001): /* M-Audio Quattro USB */
>> 697 case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro USB */
>> 698 case USB_ID(0x047f, 0x0ca1): /* plantronics headset */
>> 699 case USB_ID(0x077d, 0x07af): /* Griffin iMic (note that there is
>> 700 an older model 77d:223) */
>> 701 /*
>> 702 * plantronics headset and Griffin iMic have set adaptive-in
>> 703 * although it's really not...
>> 704 */
>> 705 fp->ep_attr &= ~USB_ENDPOINT_SYNCTYPE;
>> 706 if (stream == SNDRV_PCM_STREAM_PLAYBACK)
>> 707 fp->ep_attr |= USB_ENDPOINT_SYNC_ADAPTIVE;
>> 708 else
>> 709 fp->ep_attr |= USB_ENDPOINT_SYNC_SYNC;
>> 710 break;
>> 711 }
1257 712
1258 /* parse PCM formats */ !! 713 /* ok, let's parse further... */
1259 err = __snd_usb_parse_audio_interface !! 714 if (snd_usb_parse_audio_format(chip, fp, format, fmt, stream) < 0) {
1260 if (err < 0) !! 715 kfree(fp->rate_table);
1261 return err; !! 716 kfree(fp);
>> 717 fp = NULL;
>> 718 continue;
>> 719 }
1262 720
1263 if (has_non_pcm) { !! 721 /* Create chmap */
1264 /* parse non-PCM formats */ !! 722 if (fp->channels != num_channels)
1265 err = __snd_usb_parse_audio_i !! 723 chconfig = 0;
1266 if (err < 0) !! 724 fp->chmap = convert_chmap(fp->channels, chconfig, protocol);
>> 725
>> 726 dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint);
>> 727 err = snd_usb_add_audio_stream(chip, stream, fp);
>> 728 if (err < 0) {
>> 729 list_del(&fp->list); /* unlink for avoiding double-free */
>> 730 kfree(fp->rate_table);
>> 731 kfree(fp->chmap);
>> 732 kfree(fp);
1267 return err; 733 return err;
>> 734 }
>> 735 /* try to set the interface... */
>> 736 usb_set_interface(chip->dev, iface_no, altno);
>> 737 snd_usb_init_pitch(chip, iface_no, alts, fp);
>> 738 snd_usb_init_sample_rate(chip, iface_no, alts, fp, fp->rate_max);
1268 } 739 }
1269 <<
1270 return 0; 740 return 0;
1271 } 741 }
1272 742
1273 743
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