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> 23 #include <linux/usb/audio-v3.h>
12 24
13 #include <sound/core.h> 25 #include <sound/core.h>
14 #include <sound/pcm.h> 26 #include <sound/pcm.h>
15 #include <sound/control.h> 27 #include <sound/control.h>
16 #include <sound/tlv.h> 28 #include <sound/tlv.h>
17 29
18 #include "usbaudio.h" 30 #include "usbaudio.h"
19 #include "card.h" 31 #include "card.h"
20 #include "proc.h" 32 #include "proc.h"
21 #include "quirks.h" 33 #include "quirks.h"
22 #include "endpoint.h" 34 #include "endpoint.h"
23 #include "pcm.h" 35 #include "pcm.h"
24 #include "helper.h" 36 #include "helper.h"
25 #include "format.h" 37 #include "format.h"
26 #include "clock.h" 38 #include "clock.h"
27 #include "stream.h" 39 #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 40
39 /* 41 /*
40 * free a substream 42 * free a substream
41 */ 43 */
42 static void free_substream(struct snd_usb_subs 44 static void free_substream(struct snd_usb_substream *subs)
43 { 45 {
44 struct audioformat *fp, *n; 46 struct audioformat *fp, *n;
45 47
46 if (!subs->num_formats) 48 if (!subs->num_formats)
47 return; /* not initialized */ 49 return; /* not initialized */
48 list_for_each_entry_safe(fp, n, &subs- !! 50 list_for_each_entry_safe(fp, n, &subs->fmt_list, list) {
49 audioformat_free(fp); !! 51 kfree(fp->rate_table);
50 kfree(subs->str_pd); !! 52 kfree(fp->chmap);
51 snd_media_stream_delete(subs); !! 53 kfree(fp);
>> 54 }
>> 55 kfree(subs->rate_list.list);
52 } 56 }
53 57
54 58
55 /* 59 /*
56 * free a usb stream instance 60 * free a usb stream instance
57 */ 61 */
58 static void snd_usb_audio_stream_free(struct s 62 static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)
59 { 63 {
60 free_substream(&stream->substream[0]); 64 free_substream(&stream->substream[0]);
61 free_substream(&stream->substream[1]); 65 free_substream(&stream->substream[1]);
62 list_del(&stream->list); 66 list_del(&stream->list);
63 kfree(stream); 67 kfree(stream);
64 } 68 }
65 69
66 static void snd_usb_audio_pcm_free(struct snd_ 70 static void snd_usb_audio_pcm_free(struct snd_pcm *pcm)
67 { 71 {
68 struct snd_usb_stream *stream = pcm->p 72 struct snd_usb_stream *stream = pcm->private_data;
69 if (stream) { 73 if (stream) {
70 stream->pcm = NULL; 74 stream->pcm = NULL;
71 snd_usb_audio_stream_free(stre 75 snd_usb_audio_stream_free(stream);
72 } 76 }
73 } 77 }
74 78
75 /* 79 /*
76 * initialize the substream instance. 80 * initialize the substream instance.
77 */ 81 */
78 82
79 static void snd_usb_init_substream(struct snd_ 83 static void snd_usb_init_substream(struct snd_usb_stream *as,
80 int stream, 84 int stream,
81 struct audi !! 85 struct audioformat *fp)
82 struct snd_ <<
83 { 86 {
84 struct snd_usb_substream *subs = &as-> 87 struct snd_usb_substream *subs = &as->substream[stream];
85 88
86 INIT_LIST_HEAD(&subs->fmt_list); 89 INIT_LIST_HEAD(&subs->fmt_list);
87 spin_lock_init(&subs->lock); 90 spin_lock_init(&subs->lock);
88 91
89 subs->stream = as; 92 subs->stream = as;
90 subs->direction = stream; 93 subs->direction = stream;
91 subs->dev = as->chip->dev; 94 subs->dev = as->chip->dev;
92 subs->txfr_quirk = !!(as->chip->quirk_ !! 95 subs->txfr_quirk = as->chip->txfr_quirk;
93 subs->tx_length_quirk = !!(as->chip->q !! 96 subs->tx_length_quirk = as->chip->tx_length_quirk;
94 subs->speed = snd_usb_get_speed(subs-> 97 subs->speed = snd_usb_get_speed(subs->dev);
95 subs->pkt_offset_adj = 0; 98 subs->pkt_offset_adj = 0;
96 subs->stream_offset_adj = 0; <<
97 99
98 snd_usb_set_pcm_ops(as->pcm, stream); 100 snd_usb_set_pcm_ops(as->pcm, stream);
99 101
100 list_add_tail(&fp->list, &subs->fmt_li 102 list_add_tail(&fp->list, &subs->fmt_list);
101 subs->formats |= fp->formats; 103 subs->formats |= fp->formats;
102 subs->num_formats++; 104 subs->num_formats++;
103 subs->fmt_type = fp->fmt_type; 105 subs->fmt_type = fp->fmt_type;
104 subs->ep_num = fp->endpoint; 106 subs->ep_num = fp->endpoint;
105 if (fp->channels > subs->channels_max) 107 if (fp->channels > subs->channels_max)
106 subs->channels_max = fp->chann 108 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 } 109 }
117 110
118 /* kctl callbacks for usb-audio channel maps * 111 /* kctl callbacks for usb-audio channel maps */
119 static int usb_chmap_ctl_info(struct snd_kcont 112 static int usb_chmap_ctl_info(struct snd_kcontrol *kcontrol,
120 struct snd_ctl_e 113 struct snd_ctl_elem_info *uinfo)
121 { 114 {
122 struct snd_pcm_chmap *info = snd_kcont 115 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
123 struct snd_usb_substream *subs = info- 116 struct snd_usb_substream *subs = info->private_data;
124 117
125 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTE 118 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
126 uinfo->count = subs->channels_max; 119 uinfo->count = subs->channels_max;
127 uinfo->value.integer.min = 0; 120 uinfo->value.integer.min = 0;
128 uinfo->value.integer.max = SNDRV_CHMAP 121 uinfo->value.integer.max = SNDRV_CHMAP_LAST;
129 return 0; 122 return 0;
130 } 123 }
131 124
132 /* check whether a duplicated entry exists in 125 /* check whether a duplicated entry exists in the audiofmt list */
133 static bool have_dup_chmap(struct snd_usb_subs 126 static bool have_dup_chmap(struct snd_usb_substream *subs,
134 struct audioformat 127 struct audioformat *fp)
135 { 128 {
136 struct audioformat *prev = fp; 129 struct audioformat *prev = fp;
137 130
138 list_for_each_entry_continue_reverse(p 131 list_for_each_entry_continue_reverse(prev, &subs->fmt_list, list) {
139 if (prev->chmap && 132 if (prev->chmap &&
140 !memcmp(prev->chmap, fp->c 133 !memcmp(prev->chmap, fp->chmap, sizeof(*fp->chmap)))
141 return true; 134 return true;
142 } 135 }
143 return false; 136 return false;
144 } 137 }
145 138
146 static int usb_chmap_ctl_tlv(struct snd_kcontr 139 static int usb_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
147 unsigned int size 140 unsigned int size, unsigned int __user *tlv)
148 { 141 {
149 struct snd_pcm_chmap *info = snd_kcont 142 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
150 struct snd_usb_substream *subs = info- 143 struct snd_usb_substream *subs = info->private_data;
151 struct audioformat *fp; 144 struct audioformat *fp;
152 unsigned int __user *dst; 145 unsigned int __user *dst;
153 int count = 0; 146 int count = 0;
154 147
155 if (size < 8) 148 if (size < 8)
156 return -ENOMEM; 149 return -ENOMEM;
157 if (put_user(SNDRV_CTL_TLVT_CONTAINER, 150 if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
158 return -EFAULT; 151 return -EFAULT;
159 size -= 8; 152 size -= 8;
160 dst = tlv + 2; 153 dst = tlv + 2;
161 list_for_each_entry(fp, &subs->fmt_lis 154 list_for_each_entry(fp, &subs->fmt_list, list) {
162 int i, ch_bytes; 155 int i, ch_bytes;
163 156
164 if (!fp->chmap) 157 if (!fp->chmap)
165 continue; 158 continue;
166 if (have_dup_chmap(subs, fp)) 159 if (have_dup_chmap(subs, fp))
167 continue; 160 continue;
168 /* copy the entry */ 161 /* copy the entry */
169 ch_bytes = fp->chmap->channels 162 ch_bytes = fp->chmap->channels * 4;
170 if (size < 8 + ch_bytes) 163 if (size < 8 + ch_bytes)
171 return -ENOMEM; 164 return -ENOMEM;
172 if (put_user(SNDRV_CTL_TLVT_CH 165 if (put_user(SNDRV_CTL_TLVT_CHMAP_FIXED, dst) ||
173 put_user(ch_bytes, dst + 1 166 put_user(ch_bytes, dst + 1))
174 return -EFAULT; 167 return -EFAULT;
175 dst += 2; 168 dst += 2;
176 for (i = 0; i < fp->chmap->cha 169 for (i = 0; i < fp->chmap->channels; i++, dst++) {
177 if (put_user(fp->chmap 170 if (put_user(fp->chmap->map[i], dst))
178 return -EFAULT 171 return -EFAULT;
179 } 172 }
180 173
181 count += 8 + ch_bytes; 174 count += 8 + ch_bytes;
182 size -= 8 + ch_bytes; 175 size -= 8 + ch_bytes;
183 } 176 }
184 if (put_user(count, tlv + 1)) 177 if (put_user(count, tlv + 1))
185 return -EFAULT; 178 return -EFAULT;
186 return 0; 179 return 0;
187 } 180 }
188 181
189 static int usb_chmap_ctl_get(struct snd_kcontr 182 static int usb_chmap_ctl_get(struct snd_kcontrol *kcontrol,
190 struct snd_ctl_el 183 struct snd_ctl_elem_value *ucontrol)
191 { 184 {
192 struct snd_pcm_chmap *info = snd_kcont 185 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
193 struct snd_usb_substream *subs = info- 186 struct snd_usb_substream *subs = info->private_data;
194 struct snd_pcm_chmap_elem *chmap = NUL 187 struct snd_pcm_chmap_elem *chmap = NULL;
195 int i = 0; !! 188 int i;
196 189
>> 190 memset(ucontrol->value.integer.value, 0,
>> 191 sizeof(ucontrol->value.integer.value));
197 if (subs->cur_audiofmt) 192 if (subs->cur_audiofmt)
198 chmap = subs->cur_audiofmt->ch 193 chmap = subs->cur_audiofmt->chmap;
199 if (chmap) { 194 if (chmap) {
200 for (i = 0; i < chmap->channel 195 for (i = 0; i < chmap->channels; i++)
201 ucontrol->value.intege 196 ucontrol->value.integer.value[i] = chmap->map[i];
202 } 197 }
203 for (; i < subs->channels_max; i++) <<
204 ucontrol->value.integer.value[ <<
205 return 0; 198 return 0;
206 } 199 }
207 200
208 /* create a chmap kctl assigned to the given U 201 /* create a chmap kctl assigned to the given USB substream */
209 static int add_chmap(struct snd_pcm *pcm, int 202 static int add_chmap(struct snd_pcm *pcm, int stream,
210 struct snd_usb_substream 203 struct snd_usb_substream *subs)
211 { 204 {
212 struct audioformat *fp; 205 struct audioformat *fp;
213 struct snd_pcm_chmap *chmap; 206 struct snd_pcm_chmap *chmap;
214 struct snd_kcontrol *kctl; 207 struct snd_kcontrol *kctl;
215 int err; 208 int err;
216 209
217 list_for_each_entry(fp, &subs->fmt_lis 210 list_for_each_entry(fp, &subs->fmt_list, list)
218 if (fp->chmap) 211 if (fp->chmap)
219 goto ok; 212 goto ok;
220 /* no chmap is found */ 213 /* no chmap is found */
221 return 0; 214 return 0;
222 215
223 ok: 216 ok:
224 err = snd_pcm_add_chmap_ctls(pcm, stre 217 err = snd_pcm_add_chmap_ctls(pcm, stream, NULL, 0, 0, &chmap);
225 if (err < 0) 218 if (err < 0)
226 return err; 219 return err;
227 220
228 /* override handlers */ 221 /* override handlers */
229 chmap->private_data = subs; 222 chmap->private_data = subs;
230 kctl = chmap->kctl; 223 kctl = chmap->kctl;
231 kctl->info = usb_chmap_ctl_info; 224 kctl->info = usb_chmap_ctl_info;
232 kctl->get = usb_chmap_ctl_get; 225 kctl->get = usb_chmap_ctl_get;
233 kctl->tlv.c = usb_chmap_ctl_tlv; 226 kctl->tlv.c = usb_chmap_ctl_tlv;
234 227
235 return 0; 228 return 0;
236 } 229 }
237 230
238 /* convert from USB ChannelConfig bits to ALSA 231 /* convert from USB ChannelConfig bits to ALSA chmap element */
239 static struct snd_pcm_chmap_elem *convert_chma 232 static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits,
240 233 int protocol)
241 { 234 {
242 static const unsigned int uac1_maps[] !! 235 static unsigned int uac1_maps[] = {
243 SNDRV_CHMAP_FL, /* lef 236 SNDRV_CHMAP_FL, /* left front */
244 SNDRV_CHMAP_FR, /* rig 237 SNDRV_CHMAP_FR, /* right front */
245 SNDRV_CHMAP_FC, /* cen 238 SNDRV_CHMAP_FC, /* center front */
246 SNDRV_CHMAP_LFE, /* LFE 239 SNDRV_CHMAP_LFE, /* LFE */
247 SNDRV_CHMAP_RL, /* lef !! 240 SNDRV_CHMAP_SL, /* left surround */
248 SNDRV_CHMAP_RR, /* rig !! 241 SNDRV_CHMAP_SR, /* right surround */
249 SNDRV_CHMAP_FLC, /* lef 242 SNDRV_CHMAP_FLC, /* left of center */
250 SNDRV_CHMAP_FRC, /* rig 243 SNDRV_CHMAP_FRC, /* right of center */
251 SNDRV_CHMAP_RC, /* sur 244 SNDRV_CHMAP_RC, /* surround */
252 SNDRV_CHMAP_SL, /* sid 245 SNDRV_CHMAP_SL, /* side left */
253 SNDRV_CHMAP_SR, /* sid 246 SNDRV_CHMAP_SR, /* side right */
254 SNDRV_CHMAP_TC, /* top 247 SNDRV_CHMAP_TC, /* top */
255 0 /* terminator */ 248 0 /* terminator */
256 }; 249 };
257 static const unsigned int uac2_maps[] !! 250 static unsigned int uac2_maps[] = {
258 SNDRV_CHMAP_FL, /* fro 251 SNDRV_CHMAP_FL, /* front left */
259 SNDRV_CHMAP_FR, /* fro 252 SNDRV_CHMAP_FR, /* front right */
260 SNDRV_CHMAP_FC, /* fro 253 SNDRV_CHMAP_FC, /* front center */
261 SNDRV_CHMAP_LFE, /* LFE 254 SNDRV_CHMAP_LFE, /* LFE */
262 SNDRV_CHMAP_RL, /* bac 255 SNDRV_CHMAP_RL, /* back left */
263 SNDRV_CHMAP_RR, /* bac 256 SNDRV_CHMAP_RR, /* back right */
264 SNDRV_CHMAP_FLC, /* fro 257 SNDRV_CHMAP_FLC, /* front left of center */
265 SNDRV_CHMAP_FRC, /* fro 258 SNDRV_CHMAP_FRC, /* front right of center */
266 SNDRV_CHMAP_RC, /* bac 259 SNDRV_CHMAP_RC, /* back center */
267 SNDRV_CHMAP_SL, /* sid 260 SNDRV_CHMAP_SL, /* side left */
268 SNDRV_CHMAP_SR, /* sid 261 SNDRV_CHMAP_SR, /* side right */
269 SNDRV_CHMAP_TC, /* top 262 SNDRV_CHMAP_TC, /* top center */
270 SNDRV_CHMAP_TFL, /* top 263 SNDRV_CHMAP_TFL, /* top front left */
271 SNDRV_CHMAP_TFC, /* top 264 SNDRV_CHMAP_TFC, /* top front center */
272 SNDRV_CHMAP_TFR, /* top 265 SNDRV_CHMAP_TFR, /* top front right */
273 SNDRV_CHMAP_TRL, /* top 266 SNDRV_CHMAP_TRL, /* top back left */
274 SNDRV_CHMAP_TRC, /* top 267 SNDRV_CHMAP_TRC, /* top back center */
275 SNDRV_CHMAP_TRR, /* top 268 SNDRV_CHMAP_TRR, /* top back right */
276 SNDRV_CHMAP_TFLC, /* top 269 SNDRV_CHMAP_TFLC, /* top front left of center */
277 SNDRV_CHMAP_TFRC, /* top 270 SNDRV_CHMAP_TFRC, /* top front right of center */
278 SNDRV_CHMAP_LLFE, /* lef 271 SNDRV_CHMAP_LLFE, /* left LFE */
279 SNDRV_CHMAP_RLFE, /* rig 272 SNDRV_CHMAP_RLFE, /* right LFE */
280 SNDRV_CHMAP_TSL, /* top 273 SNDRV_CHMAP_TSL, /* top side left */
281 SNDRV_CHMAP_TSR, /* top 274 SNDRV_CHMAP_TSR, /* top side right */
282 SNDRV_CHMAP_BC, /* bot 275 SNDRV_CHMAP_BC, /* bottom center */
283 SNDRV_CHMAP_RLC, /* bac 276 SNDRV_CHMAP_RLC, /* back left of center */
284 SNDRV_CHMAP_RRC, /* bac 277 SNDRV_CHMAP_RRC, /* back right of center */
285 0 /* terminator */ 278 0 /* terminator */
286 }; 279 };
287 struct snd_pcm_chmap_elem *chmap; 280 struct snd_pcm_chmap_elem *chmap;
288 const unsigned int *maps; 281 const unsigned int *maps;
289 int c; 282 int c;
290 283
291 if (channels > ARRAY_SIZE(chmap->map)) 284 if (channels > ARRAY_SIZE(chmap->map))
292 return NULL; 285 return NULL;
293 286
294 chmap = kzalloc(sizeof(*chmap), GFP_KE 287 chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
295 if (!chmap) 288 if (!chmap)
296 return NULL; 289 return NULL;
297 290
298 maps = protocol == UAC_VERSION_2 ? uac 291 maps = protocol == UAC_VERSION_2 ? uac2_maps : uac1_maps;
299 chmap->channels = channels; 292 chmap->channels = channels;
300 c = 0; 293 c = 0;
301 294
302 if (bits) { 295 if (bits) {
303 for (; bits && *maps; maps++, !! 296 for (; bits && *maps; maps++, bits >>= 1)
304 if (bits & 1) 297 if (bits & 1)
305 chmap->map[c++ 298 chmap->map[c++] = *maps;
306 if (c == chmap->channe <<
307 break; <<
308 } <<
309 } else { 299 } else {
310 /* If we're missing wChannelCo 300 /* If we're missing wChannelConfig, then guess something
311 to make sure the channel m 301 to make sure the channel map is not skipped entirely */
312 if (channels == 1) 302 if (channels == 1)
313 chmap->map[c++] = SNDR 303 chmap->map[c++] = SNDRV_CHMAP_MONO;
314 else 304 else
315 for (; c < channels && 305 for (; c < channels && *maps; maps++)
316 chmap->map[c++ 306 chmap->map[c++] = *maps;
317 } 307 }
318 308
319 for (; c < channels; c++) 309 for (; c < channels; c++)
320 chmap->map[c] = SNDRV_CHMAP_UN 310 chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
321 311
322 return chmap; 312 return chmap;
323 } 313 }
324 314
325 /* UAC3 device stores channels information in 315 /* UAC3 device stores channels information in Cluster Descriptors */
326 static struct 316 static struct
327 snd_pcm_chmap_elem *convert_chmap_v3(struct ua 317 snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor
328 318 *cluster)
329 { 319 {
330 unsigned int channels = cluster->bNrCh 320 unsigned int channels = cluster->bNrChannels;
331 struct snd_pcm_chmap_elem *chmap; 321 struct snd_pcm_chmap_elem *chmap;
332 void *p = cluster; 322 void *p = cluster;
333 int len, c; 323 int len, c;
334 324
335 if (channels > ARRAY_SIZE(chmap->map)) 325 if (channels > ARRAY_SIZE(chmap->map))
336 return NULL; 326 return NULL;
337 327
338 chmap = kzalloc(sizeof(*chmap), GFP_KE 328 chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
339 if (!chmap) 329 if (!chmap)
340 return NULL; 330 return NULL;
341 331
342 len = le16_to_cpu(cluster->wLength); 332 len = le16_to_cpu(cluster->wLength);
343 c = 0; 333 c = 0;
344 p += sizeof(struct uac3_cluster_header 334 p += sizeof(struct uac3_cluster_header_descriptor);
345 335
346 while (((p - (void *)cluster) < len) & 336 while (((p - (void *)cluster) < len) && (c < channels)) {
347 struct uac3_cluster_segment_de 337 struct uac3_cluster_segment_descriptor *cs_desc = p;
348 u16 cs_len; 338 u16 cs_len;
349 u8 cs_type; 339 u8 cs_type;
350 340
351 cs_len = le16_to_cpu(cs_desc-> 341 cs_len = le16_to_cpu(cs_desc->wLength);
352 cs_type = cs_desc->bSegmentTyp 342 cs_type = cs_desc->bSegmentType;
353 343
354 if (cs_type == UAC3_CHANNEL_IN 344 if (cs_type == UAC3_CHANNEL_INFORMATION) {
355 struct uac3_cluster_in 345 struct uac3_cluster_information_segment_descriptor *is = p;
356 unsigned char map; 346 unsigned char map;
357 347
358 /* 348 /*
359 * TODO: this conversi 349 * TODO: this conversion is not complete, update it
360 * after adding UAC3 v 350 * after adding UAC3 values to asound.h
361 */ 351 */
362 switch (is->bChRelatio 352 switch (is->bChRelationship) {
363 case UAC3_CH_MONO: 353 case UAC3_CH_MONO:
364 map = SNDRV_CH 354 map = SNDRV_CHMAP_MONO;
365 break; 355 break;
366 case UAC3_CH_LEFT: 356 case UAC3_CH_LEFT:
367 case UAC3_CH_FRONT_LEF 357 case UAC3_CH_FRONT_LEFT:
368 case UAC3_CH_HEADPHONE 358 case UAC3_CH_HEADPHONE_LEFT:
369 map = SNDRV_CH 359 map = SNDRV_CHMAP_FL;
370 break; 360 break;
371 case UAC3_CH_RIGHT: 361 case UAC3_CH_RIGHT:
372 case UAC3_CH_FRONT_RIG 362 case UAC3_CH_FRONT_RIGHT:
373 case UAC3_CH_HEADPHONE 363 case UAC3_CH_HEADPHONE_RIGHT:
374 map = SNDRV_CH 364 map = SNDRV_CHMAP_FR;
375 break; 365 break;
376 case UAC3_CH_FRONT_CEN 366 case UAC3_CH_FRONT_CENTER:
377 map = SNDRV_CH 367 map = SNDRV_CHMAP_FC;
378 break; 368 break;
379 case UAC3_CH_FRONT_LEF 369 case UAC3_CH_FRONT_LEFT_OF_CENTER:
380 map = SNDRV_CH 370 map = SNDRV_CHMAP_FLC;
381 break; 371 break;
382 case UAC3_CH_FRONT_RIG 372 case UAC3_CH_FRONT_RIGHT_OF_CENTER:
383 map = SNDRV_CH 373 map = SNDRV_CHMAP_FRC;
384 break; 374 break;
385 case UAC3_CH_SIDE_LEFT 375 case UAC3_CH_SIDE_LEFT:
386 map = SNDRV_CH 376 map = SNDRV_CHMAP_SL;
387 break; 377 break;
388 case UAC3_CH_SIDE_RIGH 378 case UAC3_CH_SIDE_RIGHT:
389 map = SNDRV_CH 379 map = SNDRV_CHMAP_SR;
390 break; 380 break;
391 case UAC3_CH_BACK_LEFT 381 case UAC3_CH_BACK_LEFT:
392 map = SNDRV_CH 382 map = SNDRV_CHMAP_RL;
393 break; 383 break;
394 case UAC3_CH_BACK_RIGH 384 case UAC3_CH_BACK_RIGHT:
395 map = SNDRV_CH 385 map = SNDRV_CHMAP_RR;
396 break; 386 break;
397 case UAC3_CH_BACK_CENT 387 case UAC3_CH_BACK_CENTER:
398 map = SNDRV_CH 388 map = SNDRV_CHMAP_RC;
399 break; 389 break;
400 case UAC3_CH_BACK_LEFT 390 case UAC3_CH_BACK_LEFT_OF_CENTER:
401 map = SNDRV_CH 391 map = SNDRV_CHMAP_RLC;
402 break; 392 break;
403 case UAC3_CH_BACK_RIGH 393 case UAC3_CH_BACK_RIGHT_OF_CENTER:
404 map = SNDRV_CH 394 map = SNDRV_CHMAP_RRC;
405 break; 395 break;
406 case UAC3_CH_TOP_CENTE 396 case UAC3_CH_TOP_CENTER:
407 map = SNDRV_CH 397 map = SNDRV_CHMAP_TC;
408 break; 398 break;
409 case UAC3_CH_TOP_FRONT 399 case UAC3_CH_TOP_FRONT_LEFT:
410 map = SNDRV_CH 400 map = SNDRV_CHMAP_TFL;
411 break; 401 break;
412 case UAC3_CH_TOP_FRONT 402 case UAC3_CH_TOP_FRONT_RIGHT:
413 map = SNDRV_CH 403 map = SNDRV_CHMAP_TFR;
414 break; 404 break;
415 case UAC3_CH_TOP_FRONT 405 case UAC3_CH_TOP_FRONT_CENTER:
416 map = SNDRV_CH 406 map = SNDRV_CHMAP_TFC;
417 break; 407 break;
418 case UAC3_CH_TOP_FRONT 408 case UAC3_CH_TOP_FRONT_LOC:
419 map = SNDRV_CH 409 map = SNDRV_CHMAP_TFLC;
420 break; 410 break;
421 case UAC3_CH_TOP_FRONT 411 case UAC3_CH_TOP_FRONT_ROC:
422 map = SNDRV_CH 412 map = SNDRV_CHMAP_TFRC;
423 break; 413 break;
424 case UAC3_CH_TOP_SIDE_ 414 case UAC3_CH_TOP_SIDE_LEFT:
425 map = SNDRV_CH 415 map = SNDRV_CHMAP_TSL;
426 break; 416 break;
427 case UAC3_CH_TOP_SIDE_ 417 case UAC3_CH_TOP_SIDE_RIGHT:
428 map = SNDRV_CH 418 map = SNDRV_CHMAP_TSR;
429 break; 419 break;
430 case UAC3_CH_TOP_BACK_ 420 case UAC3_CH_TOP_BACK_LEFT:
431 map = SNDRV_CH 421 map = SNDRV_CHMAP_TRL;
432 break; 422 break;
433 case UAC3_CH_TOP_BACK_ 423 case UAC3_CH_TOP_BACK_RIGHT:
434 map = SNDRV_CH 424 map = SNDRV_CHMAP_TRR;
435 break; 425 break;
436 case UAC3_CH_TOP_BACK_ 426 case UAC3_CH_TOP_BACK_CENTER:
437 map = SNDRV_CH 427 map = SNDRV_CHMAP_TRC;
438 break; 428 break;
439 case UAC3_CH_BOTTOM_CE 429 case UAC3_CH_BOTTOM_CENTER:
440 map = SNDRV_CH 430 map = SNDRV_CHMAP_BC;
441 break; 431 break;
442 case UAC3_CH_LOW_FREQU 432 case UAC3_CH_LOW_FREQUENCY_EFFECTS:
443 map = SNDRV_CH 433 map = SNDRV_CHMAP_LFE;
444 break; 434 break;
445 case UAC3_CH_LFE_LEFT: 435 case UAC3_CH_LFE_LEFT:
446 map = SNDRV_CH 436 map = SNDRV_CHMAP_LLFE;
447 break; 437 break;
448 case UAC3_CH_LFE_RIGHT 438 case UAC3_CH_LFE_RIGHT:
449 map = SNDRV_CH 439 map = SNDRV_CHMAP_RLFE;
450 break; 440 break;
451 case UAC3_CH_RELATIONS 441 case UAC3_CH_RELATIONSHIP_UNDEFINED:
452 default: 442 default:
453 map = SNDRV_CH 443 map = SNDRV_CHMAP_UNKNOWN;
454 break; 444 break;
455 } 445 }
456 chmap->map[c++] = map; 446 chmap->map[c++] = map;
457 } 447 }
458 p += cs_len; 448 p += cs_len;
459 } 449 }
460 450
461 if (channels < c) 451 if (channels < c)
462 pr_err("%s: channel number mis 452 pr_err("%s: channel number mismatch\n", __func__);
463 453
464 chmap->channels = channels; 454 chmap->channels = channels;
465 455
466 for (; c < channels; c++) 456 for (; c < channels; c++)
467 chmap->map[c] = SNDRV_CHMAP_UN 457 chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
468 458
469 return chmap; 459 return chmap;
470 } 460 }
471 461
472 /* 462 /*
473 * add this endpoint to the chip instance. 463 * add this endpoint to the chip instance.
474 * if a stream with the same endpoint already 464 * if a stream with the same endpoint already exists, append to it.
475 * if not, create a new pcm stream. note, fp i 465 * 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 466 * 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 467 * fp or do remove it from the substream fmt_list to avoid double-free.
478 */ 468 */
479 static int __snd_usb_add_audio_stream(struct s !! 469 int snd_usb_add_audio_stream(struct snd_usb_audio *chip,
480 int stre !! 470 int stream,
481 struct a !! 471 struct audioformat *fp)
482 struct s <<
483 <<
484 { 472 {
485 struct snd_usb_stream *as; 473 struct snd_usb_stream *as;
486 struct snd_usb_substream *subs; 474 struct snd_usb_substream *subs;
487 struct snd_pcm *pcm; 475 struct snd_pcm *pcm;
488 int err; 476 int err;
489 477
490 list_for_each_entry(as, &chip->pcm_lis 478 list_for_each_entry(as, &chip->pcm_list, list) {
491 if (as->fmt_type != fp->fmt_ty 479 if (as->fmt_type != fp->fmt_type)
492 continue; 480 continue;
493 subs = &as->substream[stream]; 481 subs = &as->substream[stream];
494 if (subs->ep_num == fp->endpoi 482 if (subs->ep_num == fp->endpoint) {
495 list_add_tail(&fp->lis 483 list_add_tail(&fp->list, &subs->fmt_list);
496 subs->num_formats++; 484 subs->num_formats++;
497 subs->formats |= fp->f 485 subs->formats |= fp->formats;
498 return 0; 486 return 0;
499 } 487 }
500 } 488 }
501 <<
502 if (chip->card->registered) <<
503 chip->need_delayed_register = <<
504 <<
505 /* look for an empty stream */ 489 /* look for an empty stream */
506 list_for_each_entry(as, &chip->pcm_lis 490 list_for_each_entry(as, &chip->pcm_list, list) {
507 if (as->fmt_type != fp->fmt_ty 491 if (as->fmt_type != fp->fmt_type)
508 continue; 492 continue;
509 subs = &as->substream[stream]; 493 subs = &as->substream[stream];
510 if (subs->ep_num) 494 if (subs->ep_num)
511 continue; 495 continue;
512 err = snd_pcm_new_stream(as->p 496 err = snd_pcm_new_stream(as->pcm, stream, 1);
513 if (err < 0) 497 if (err < 0)
514 return err; 498 return err;
515 snd_usb_init_substream(as, str !! 499 snd_usb_init_substream(as, stream, fp);
516 return add_chmap(as->pcm, stre 500 return add_chmap(as->pcm, stream, subs);
517 } 501 }
518 502
519 /* create a new pcm */ 503 /* create a new pcm */
520 as = kzalloc(sizeof(*as), GFP_KERNEL); 504 as = kzalloc(sizeof(*as), GFP_KERNEL);
521 if (!as) 505 if (!as)
522 return -ENOMEM; 506 return -ENOMEM;
523 as->pcm_index = chip->pcm_devs; 507 as->pcm_index = chip->pcm_devs;
524 as->chip = chip; 508 as->chip = chip;
525 as->fmt_type = fp->fmt_type; 509 as->fmt_type = fp->fmt_type;
526 err = snd_pcm_new(chip->card, "USB Aud 510 err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs,
527 stream == SNDRV_PCM_ 511 stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0,
528 stream == SNDRV_PCM_ 512 stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1,
529 &pcm); 513 &pcm);
530 if (err < 0) { 514 if (err < 0) {
531 kfree(as); 515 kfree(as);
532 return err; 516 return err;
533 } 517 }
534 as->pcm = pcm; 518 as->pcm = pcm;
535 pcm->private_data = as; 519 pcm->private_data = as;
536 pcm->private_free = snd_usb_audio_pcm_ 520 pcm->private_free = snd_usb_audio_pcm_free;
537 pcm->info_flags = 0; 521 pcm->info_flags = 0;
538 if (chip->pcm_devs > 0) 522 if (chip->pcm_devs > 0)
539 sprintf(pcm->name, "USB Audio 523 sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs);
540 else 524 else
541 strcpy(pcm->name, "USB Audio") 525 strcpy(pcm->name, "USB Audio");
542 526
543 snd_usb_init_substream(as, stream, fp, !! 527 snd_usb_init_substream(as, stream, fp);
544 528
545 /* 529 /*
546 * Keep using head insertion for M-Aud 530 * Keep using head insertion for M-Audio Audiophile USB (tm) which has a
547 * fix to swap capture stream order in 531 * fix to swap capture stream order in conf/cards/USB-audio.conf
548 */ 532 */
549 if (chip->usb_id == USB_ID(0x0763, 0x2 533 if (chip->usb_id == USB_ID(0x0763, 0x2003))
550 list_add(&as->list, &chip->pcm 534 list_add(&as->list, &chip->pcm_list);
551 else 535 else
552 list_add_tail(&as->list, &chip 536 list_add_tail(&as->list, &chip->pcm_list);
553 537
554 chip->pcm_devs++; 538 chip->pcm_devs++;
555 539
556 snd_usb_proc_pcm_format_add(as); 540 snd_usb_proc_pcm_format_add(as);
557 541
558 return add_chmap(pcm, stream, &as->sub 542 return add_chmap(pcm, stream, &as->substream[stream]);
559 } 543 }
560 544
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 545 static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip,
577 struc 546 struct usb_host_interface *alts,
578 int p 547 int protocol, int iface_no)
579 { 548 {
580 /* parsed with a v1 header here. that' 549 /* parsed with a v1 header here. that's ok as we only look at the
581 * header first which is the same for 550 * header first which is the same for both versions */
582 struct uac_iso_endpoint_descriptor *cs 551 struct uac_iso_endpoint_descriptor *csep;
583 struct usb_interface_descriptor *altsd 552 struct usb_interface_descriptor *altsd = get_iface_desc(alts);
584 int attributes = 0; 553 int attributes = 0;
585 554
586 csep = snd_usb_find_desc(alts->endpoin 555 csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT);
587 556
588 /* Creamware Noah has this descriptor 557 /* Creamware Noah has this descriptor after the 2nd endpoint */
589 if (!csep && altsd->bNumEndpoints >= 2 558 if (!csep && altsd->bNumEndpoints >= 2)
590 csep = snd_usb_find_desc(alts- 559 csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);
591 560
592 /* 561 /*
593 * If we can't locate the USB_DT_CS_EN 562 * If we can't locate the USB_DT_CS_ENDPOINT descriptor in the extra
594 * bytes after the first endpoint, go 563 * bytes after the first endpoint, go search the entire interface.
595 * Some devices have it directly *befo 564 * Some devices have it directly *before* the standard endpoint.
596 */ 565 */
597 if (!csep) 566 if (!csep)
598 csep = snd_usb_find_desc(alts- 567 csep = snd_usb_find_desc(alts->extra, alts->extralen, NULL, USB_DT_CS_ENDPOINT);
599 568
600 if (!csep || csep->bLength < 7 || 569 if (!csep || csep->bLength < 7 ||
601 csep->bDescriptorSubtype != UAC_EP !! 570 csep->bDescriptorSubtype != UAC_EP_GENERAL) {
602 goto error; !! 571 usb_audio_warn(chip,
>> 572 "%u:%d : no or invalid class specific endpoint descriptor\n",
>> 573 iface_no, altsd->bAlternateSetting);
>> 574 return 0;
>> 575 }
603 576
604 if (protocol == UAC_VERSION_1) { 577 if (protocol == UAC_VERSION_1) {
605 attributes = csep->bmAttribute 578 attributes = csep->bmAttributes;
606 } else if (protocol == UAC_VERSION_2) 579 } else if (protocol == UAC_VERSION_2) {
607 struct uac2_iso_endpoint_descr 580 struct uac2_iso_endpoint_descriptor *csep2 =
608 (struct uac2_iso_endpo 581 (struct uac2_iso_endpoint_descriptor *) csep;
609 582
610 if (csep2->bLength < sizeof(*c <<
611 goto error; <<
612 attributes = csep->bmAttribute 583 attributes = csep->bmAttributes & UAC_EP_CS_ATTR_FILL_MAX;
613 584
614 /* emulate the endpoint attrib 585 /* emulate the endpoint attributes of a v1 device */
615 if (csep2->bmControls & UAC2_C 586 if (csep2->bmControls & UAC2_CONTROL_PITCH)
616 attributes |= UAC_EP_C 587 attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
617 } else { /* UAC_VERSION_3 */ 588 } else { /* UAC_VERSION_3 */
618 struct uac3_iso_endpoint_descr 589 struct uac3_iso_endpoint_descriptor *csep3 =
619 (struct uac3_iso_endpo 590 (struct uac3_iso_endpoint_descriptor *) csep;
620 591
621 if (csep3->bLength < sizeof(*c <<
622 goto error; <<
623 /* emulate the endpoint attrib 592 /* emulate the endpoint attributes of a v1 device */
624 if (le32_to_cpu(csep3->bmContr 593 if (le32_to_cpu(csep3->bmControls) & UAC2_CONTROL_PITCH)
625 attributes |= UAC_EP_C 594 attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
626 } 595 }
627 596
628 return attributes; 597 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 } 598 }
636 599
637 /* find an input terminal descriptor (either U 600 /* find an input terminal descriptor (either UAC1 or UAC2) with the given
638 * terminal id 601 * terminal id
639 */ 602 */
640 static void * 603 static void *
641 snd_usb_find_input_terminal_descriptor(struct 604 snd_usb_find_input_terminal_descriptor(struct usb_host_interface *ctrl_iface,
642 int ter !! 605 int terminal_id)
643 { 606 {
644 struct uac2_input_terminal_descriptor 607 struct uac2_input_terminal_descriptor *term = NULL;
645 608
646 while ((term = snd_usb_find_csint_desc 609 while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
647 610 ctrl_iface->extralen,
648 611 term, UAC_INPUT_TERMINAL))) {
649 if (!snd_usb_validate_audio_de <<
650 continue; <<
651 if (term->bTerminalID == termi 612 if (term->bTerminalID == terminal_id)
652 return term; 613 return term;
653 } 614 }
654 615
655 return NULL; 616 return NULL;
656 } 617 }
657 618
658 static void * 619 static void *
659 snd_usb_find_output_terminal_descriptor(struct 620 snd_usb_find_output_terminal_descriptor(struct usb_host_interface *ctrl_iface,
660 int te !! 621 int terminal_id)
661 { 622 {
662 /* OK to use with both UAC2 and UAC3 * 623 /* OK to use with both UAC2 and UAC3 */
663 struct uac2_output_terminal_descriptor 624 struct uac2_output_terminal_descriptor *term = NULL;
664 625
665 while ((term = snd_usb_find_csint_desc 626 while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
666 627 ctrl_iface->extralen,
667 628 term, UAC_OUTPUT_TERMINAL))) {
668 if (!snd_usb_validate_audio_de <<
669 continue; <<
670 if (term->bTerminalID == termi 629 if (term->bTerminalID == terminal_id)
671 return term; 630 return term;
672 } 631 }
673 632
674 return NULL; 633 return NULL;
675 } 634 }
676 635
677 static struct audioformat * !! 636 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 { 637 {
1098 struct usb_device *dev; 638 struct usb_device *dev;
1099 struct usb_interface *iface; 639 struct usb_interface *iface;
1100 struct usb_host_interface *alts; 640 struct usb_host_interface *alts;
1101 struct usb_interface_descriptor *alts 641 struct usb_interface_descriptor *altsd;
1102 int i, altno, err, stream; 642 int i, altno, err, stream;
>> 643 u64 format = 0;
>> 644 unsigned int num_channels = 0;
1103 struct audioformat *fp = NULL; 645 struct audioformat *fp = NULL;
1104 struct snd_usb_power_domain *pd = NUL !! 646 int num, protocol, clock = 0;
1105 bool set_iface_first; !! 647 struct uac_format_type_i_continuous_descriptor *fmt = NULL;
1106 int num, protocol; !! 648 struct snd_pcm_chmap_elem *chmap_v3 = NULL;
>> 649 unsigned int chconfig;
1107 650
1108 dev = chip->dev; 651 dev = chip->dev;
1109 652
1110 /* parse the interface's altsettings 653 /* parse the interface's altsettings */
1111 iface = usb_ifnum_to_if(dev, iface_no 654 iface = usb_ifnum_to_if(dev, iface_no);
1112 655
1113 num = iface->num_altsetting; 656 num = iface->num_altsetting;
1114 657
1115 /* 658 /*
1116 * Dallas DS4201 workaround: It prese 659 * Dallas DS4201 workaround: It presents 5 altsettings, but the last
1117 * one misses syncpipe, and does not 660 * one misses syncpipe, and does not produce any sound.
1118 */ 661 */
1119 if (chip->usb_id == USB_ID(0x04fa, 0x !! 662 if (chip->usb_id == USB_ID(0x04fa, 0x4201))
1120 num = 4; 663 num = 4;
1121 664
1122 for (i = 0; i < num; i++) { 665 for (i = 0; i < num; i++) {
1123 alts = &iface->altsetting[i]; 666 alts = &iface->altsetting[i];
1124 altsd = get_iface_desc(alts); 667 altsd = get_iface_desc(alts);
1125 protocol = altsd->bInterfaceP 668 protocol = altsd->bInterfaceProtocol;
1126 /* skip invalid one */ 669 /* skip invalid one */
1127 if (((altsd->bInterfaceClass 670 if (((altsd->bInterfaceClass != USB_CLASS_AUDIO ||
1128 (altsd->bInterfaceSubCl 671 (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING &&
1129 altsd->bInterfaceSubCl 672 altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC)) &&
1130 altsd->bInterfaceClass ! 673 altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
1131 altsd->bNumEndpoints < 1 674 altsd->bNumEndpoints < 1 ||
1132 le16_to_cpu(get_endpoint( 675 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0)
1133 continue; 676 continue;
1134 /* must be isochronous */ 677 /* must be isochronous */
1135 if ((get_endpoint(alts, 0)->b 678 if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1136 USB_ENDPOINT_XFER_ISOC) 679 USB_ENDPOINT_XFER_ISOC)
1137 continue; 680 continue;
1138 /* check direction */ 681 /* check direction */
1139 stream = (get_endpoint(alts, 682 stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ?
1140 SNDRV_PCM_STREAM_CAPT 683 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
1141 altno = altsd->bAlternateSett 684 altno = altsd->bAlternateSetting;
1142 685
1143 if (snd_usb_apply_interface_q 686 if (snd_usb_apply_interface_quirk(chip, iface_no, altno))
1144 continue; 687 continue;
1145 688
1146 /* 689 /*
1147 * Roland audio streaming int 690 * Roland audio streaming interfaces are marked with protocols
1148 * 0/1/2, but are UAC 1 compa 691 * 0/1/2, but are UAC 1 compatible.
1149 */ 692 */
1150 if (USB_ID_VENDOR(chip->usb_i 693 if (USB_ID_VENDOR(chip->usb_id) == 0x0582 &&
1151 altsd->bInterfaceClass == 694 altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
1152 protocol <= 2) 695 protocol <= 2)
1153 protocol = UAC_VERSIO 696 protocol = UAC_VERSION_1;
1154 697
>> 698 chconfig = 0;
>> 699 /* get audio formats */
1155 switch (protocol) { 700 switch (protocol) {
1156 default: 701 default:
1157 dev_dbg(&dev->dev, "% 702 dev_dbg(&dev->dev, "%u:%d: unknown interface protocol %#02x, assuming v1\n",
1158 iface_no, alt 703 iface_no, altno, protocol);
1159 protocol = UAC_VERSIO 704 protocol = UAC_VERSION_1;
1160 fallthrough; !! 705 /* fall through */
1161 case UAC_VERSION_1: !! 706
>> 707 case UAC_VERSION_1: {
>> 708 struct uac1_as_header_descriptor *as =
>> 709 snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
>> 710 struct uac_input_terminal_descriptor *iterm;
>> 711
>> 712 if (!as) {
>> 713 dev_err(&dev->dev,
>> 714 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
>> 715 iface_no, altno);
>> 716 continue;
>> 717 }
>> 718
>> 719 if (as->bLength < sizeof(*as)) {
>> 720 dev_err(&dev->dev,
>> 721 "%u:%d : invalid UAC_AS_GENERAL desc\n",
>> 722 iface_no, altno);
>> 723 continue;
>> 724 }
>> 725
>> 726 format = le16_to_cpu(as->wFormatTag); /* remember the format value */
>> 727
>> 728 iterm = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
>> 729 as->bTerminalLink);
>> 730 if (iterm) {
>> 731 num_channels = iterm->bNrChannels;
>> 732 chconfig = le16_to_cpu(iterm->wChannelConfig);
>> 733 }
>> 734
>> 735 break;
>> 736 }
>> 737
1162 case UAC_VERSION_2: { 738 case UAC_VERSION_2: {
1163 int bm_quirk = 0; !! 739 struct uac2_input_terminal_descriptor *input_term;
>> 740 struct uac2_output_terminal_descriptor *output_term;
>> 741 struct uac2_as_header_descriptor *as =
>> 742 snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, UAC_AS_GENERAL);
>> 743
>> 744 if (!as) {
>> 745 dev_err(&dev->dev,
>> 746 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
>> 747 iface_no, altno);
>> 748 continue;
>> 749 }
>> 750
>> 751 if (as->bLength < sizeof(*as)) {
>> 752 dev_err(&dev->dev,
>> 753 "%u:%d : invalid UAC_AS_GENERAL desc\n",
>> 754 iface_no, altno);
>> 755 continue;
>> 756 }
>> 757
>> 758 num_channels = as->bNrChannels;
>> 759 format = le32_to_cpu(as->bmFormats);
>> 760 chconfig = le32_to_cpu(as->bmChannelConfig);
>> 761
>> 762 /* lookup the terminal associated to this interface
>> 763 * to extract the clock */
>> 764 input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
>> 765 as->bTerminalLink);
>> 766 if (input_term) {
>> 767 clock = input_term->bCSourceID;
>> 768 if (!chconfig && (num_channels == input_term->bNrChannels))
>> 769 chconfig = le32_to_cpu(input_term->bmChannelConfig);
>> 770 break;
>> 771 }
>> 772
>> 773 output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf,
>> 774 as->bTerminalLink);
>> 775 if (output_term) {
>> 776 clock = output_term->bCSourceID;
>> 777 break;
>> 778 }
>> 779
>> 780 dev_err(&dev->dev,
>> 781 "%u:%d : bogus bTerminalLink %d\n",
>> 782 iface_no, altno, as->bTerminalLink);
>> 783 continue;
>> 784 }
>> 785
>> 786 case UAC_VERSION_3: {
>> 787 struct uac3_input_terminal_descriptor *input_term;
>> 788 struct uac3_output_terminal_descriptor *output_term;
>> 789 struct uac3_as_header_descriptor *as;
>> 790 struct uac3_cluster_header_descriptor *cluster;
>> 791 struct uac3_hc_descriptor_header hc_header;
>> 792 u16 cluster_id, wLength;
>> 793
>> 794 as = snd_usb_find_csint_desc(alts->extra,
>> 795 alts->extralen,
>> 796 NULL, UAC_AS_GENERAL);
>> 797
>> 798 if (!as) {
>> 799 dev_err(&dev->dev,
>> 800 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
>> 801 iface_no, altno);
>> 802 continue;
>> 803 }
>> 804
>> 805 if (as->bLength < sizeof(*as)) {
>> 806 dev_err(&dev->dev,
>> 807 "%u:%d : invalid UAC_AS_GENERAL desc\n",
>> 808 iface_no, altno);
>> 809 continue;
>> 810 }
>> 811
>> 812 cluster_id = le16_to_cpu(as->wClusterDescrID);
>> 813 if (!cluster_id) {
>> 814 dev_err(&dev->dev,
>> 815 "%u:%d : no cluster descriptor\n",
>> 816 iface_no, altno);
>> 817 continue;
>> 818 }
>> 819
>> 820 /*
>> 821 * Get number of channels and channel map through
>> 822 * High Capability Cluster Descriptor
>> 823 *
>> 824 * First step: get High Capability header and
>> 825 * read size of Cluster Descriptor
>> 826 */
>> 827 err = snd_usb_ctl_msg(chip->dev,
>> 828 usb_rcvctrlpipe(chip->dev, 0),
>> 829 UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
>> 830 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
>> 831 cluster_id,
>> 832 snd_usb_ctrl_intf(chip),
>> 833 &hc_header, sizeof(hc_header));
>> 834 if (err < 0)
>> 835 return err;
>> 836 else if (err != sizeof(hc_header)) {
>> 837 dev_err(&dev->dev,
>> 838 "%u:%d : can't get High Capability descriptor\n",
>> 839 iface_no, altno);
>> 840 return -EIO;
>> 841 }
>> 842
>> 843 /*
>> 844 * Second step: allocate needed amount of memory
>> 845 * and request Cluster Descriptor
>> 846 */
>> 847 wLength = le16_to_cpu(hc_header.wLength);
>> 848 cluster = kzalloc(wLength, GFP_KERNEL);
>> 849 if (!cluster)
>> 850 return -ENOMEM;
>> 851 err = snd_usb_ctl_msg(chip->dev,
>> 852 usb_rcvctrlpipe(chip->dev, 0),
>> 853 UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
>> 854 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
>> 855 cluster_id,
>> 856 snd_usb_ctrl_intf(chip),
>> 857 cluster, wLength);
>> 858 if (err < 0) {
>> 859 kfree(cluster);
>> 860 return err;
>> 861 } else if (err != wLength) {
>> 862 dev_err(&dev->dev,
>> 863 "%u:%d : can't get Cluster Descriptor\n",
>> 864 iface_no, altno);
>> 865 kfree(cluster);
>> 866 return -EIO;
>> 867 }
>> 868
>> 869 num_channels = cluster->bNrChannels;
>> 870 chmap_v3 = convert_chmap_v3(cluster);
>> 871
>> 872 kfree(cluster);
>> 873
>> 874 format = le64_to_cpu(as->bmFormats);
>> 875
>> 876 /* lookup the terminal associated to this interface
>> 877 * to extract the clock */
>> 878 input_term = snd_usb_find_input_terminal_descriptor(
>> 879 chip->ctrl_intf,
>> 880 as->bTerminalLink);
>> 881
>> 882 if (input_term) {
>> 883 clock = input_term->bCSourceID;
>> 884 break;
>> 885 }
>> 886
>> 887 output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf,
>> 888 as->bTerminalLink);
>> 889 if (output_term) {
>> 890 clock = output_term->bCSourceID;
>> 891 break;
>> 892 }
>> 893
>> 894 dev_err(&dev->dev,
>> 895 "%u:%d : bogus bTerminalLink %d\n",
>> 896 iface_no, altno, as->bTerminalLink);
>> 897 continue;
>> 898 }
>> 899 }
>> 900
>> 901 if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) {
>> 902 /* get format type */
>> 903 fmt = snd_usb_find_csint_desc(alts->extra,
>> 904 alts->extralen,
>> 905 NULL, UAC_FORMAT_TYPE);
>> 906 if (!fmt) {
>> 907 dev_err(&dev->dev,
>> 908 "%u:%d : no UAC_FORMAT_TYPE desc\n",
>> 909 iface_no, altno);
>> 910 continue;
>> 911 }
>> 912 if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8))
>> 913 || ((protocol == UAC_VERSION_2) &&
>> 914 (fmt->bLength < 6))) {
>> 915 dev_err(&dev->dev,
>> 916 "%u:%d : invalid UAC_FORMAT_TYPE desc\n",
>> 917 iface_no, altno);
>> 918 continue;
>> 919 }
1164 920
1165 /* 921 /*
1166 * Blue Microphones w 922 * Blue Microphones workaround: The last altsetting is
1167 * identical with the 923 * identical with the previous one, except for a larger
1168 * packet size, but i 924 * packet size, but is actually a mislabeled two-channel
1169 * setting; ignore it 925 * setting; ignore it.
1170 * <<
1171 * Part 1: prepare qu <<
1172 */ 926 */
1173 if (altno == 2 && num !! 927 if (fmt->bNrChannels == 1 &&
>> 928 fmt->bSubframeSize == 2 &&
>> 929 altno == 2 && num == 3 &&
1174 fp && fp->altsett 930 fp && fp->altsetting == 1 && fp->channels == 1 &&
1175 fp->formats == SN 931 fp->formats == SNDRV_PCM_FMTBIT_S16_LE &&
1176 protocol == UAC_V 932 protocol == UAC_VERSION_1 &&
1177 le16_to_cpu(get_e 933 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) ==
1178 934 fp->maxpacksize * 2)
1179 bm_quirk = 1; !! 935 continue;
1180 <<
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; <<
1190 } 936 }
1191 937
>> 938 fp = kzalloc(sizeof(*fp), GFP_KERNEL);
1192 if (!fp) 939 if (!fp)
1193 continue; !! 940 return -ENOMEM;
1194 else if (IS_ERR(fp)) <<
1195 return PTR_ERR(fp); <<
1196 941
1197 if (fp->fmt_type != UAC_FORMA !! 942 fp->iface = iface_no;
1198 *has_non_pcm = true; !! 943 fp->altsetting = altno;
1199 if ((fp->fmt_type == UAC_FORM !! 944 fp->altset_idx = i;
1200 audioformat_free(fp); !! 945 fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
1201 kfree(pd); !! 946 fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
1202 fp = NULL; !! 947 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
1203 pd = NULL; !! 948 fp->protocol = protocol;
1204 continue; !! 949 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
>> 950 fp->channels = num_channels;
>> 951 if (snd_usb_get_speed(dev) == USB_SPEED_HIGH)
>> 952 fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
>> 953 * (fp->maxpacksize & 0x7ff);
>> 954 fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol, iface_no);
>> 955 fp->clock = clock;
>> 956 INIT_LIST_HEAD(&fp->list);
>> 957
>> 958 /* some quirks for attributes here */
>> 959 snd_usb_audioformat_attributes_quirk(chip, fp, stream);
>> 960
>> 961 /* ok, let's parse further... */
>> 962 if (protocol == UAC_VERSION_1 || protocol == UAC_VERSION_2) {
>> 963 if (snd_usb_parse_audio_format(chip, fp, format,
>> 964 fmt, stream) < 0) {
>> 965 kfree(fp->rate_table);
>> 966 kfree(fp);
>> 967 fp = NULL;
>> 968 continue;
>> 969 }
>> 970 } else {
>> 971 struct uac3_as_header_descriptor *as;
>> 972
>> 973 as = snd_usb_find_csint_desc(alts->extra,
>> 974 alts->extralen,
>> 975 NULL, UAC_AS_GENERAL);
>> 976
>> 977 if (snd_usb_parse_audio_format_v3(chip, fp, as,
>> 978 stream) < 0) {
>> 979 kfree(fp->rate_table);
>> 980 kfree(fp);
>> 981 fp = NULL;
>> 982 continue;
>> 983 }
1205 } 984 }
1206 985
1207 snd_usb_audioformat_set_sync_ !! 986 /* Create chmap */
>> 987 if (fp->channels != num_channels)
>> 988 chconfig = 0;
1208 989
1209 dev_dbg(&dev->dev, "%u:%d: ad <<
1210 if (protocol == UAC_VERSION_3 990 if (protocol == UAC_VERSION_3)
1211 err = snd_usb_add_aud !! 991 fp->chmap = chmap_v3;
1212 else 992 else
1213 err = snd_usb_add_aud !! 993 fp->chmap = convert_chmap(fp->channels, chconfig,
>> 994 protocol);
1214 995
>> 996 dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint);
>> 997 err = snd_usb_add_audio_stream(chip, stream, fp);
1215 if (err < 0) { 998 if (err < 0) {
1216 audioformat_free(fp); !! 999 list_del(&fp->list); /* unlink for avoiding double-free */
1217 kfree(pd); !! 1000 kfree(fp->rate_table);
>> 1001 kfree(fp->chmap);
>> 1002 kfree(fp);
1218 return err; 1003 return err;
1219 } 1004 }
1220 <<
1221 /* add endpoints */ <<
1222 err = snd_usb_add_endpoint(ch <<
1223 SN <<
1224 if (err < 0) <<
1225 return err; <<
1226 <<
1227 if (fp->sync_ep) { <<
1228 err = snd_usb_add_end <<
1229 <<
1230 <<
1231 <<
1232 if (err < 0) <<
1233 return err; <<
1234 } <<
1235 <<
1236 set_iface_first = false; <<
1237 if (protocol == UAC_VERSION_1 <<
1238 (chip->quirk_flags & QUIR <<
1239 set_iface_first = tru <<
1240 <<
1241 /* try to set the interface.. 1005 /* try to set the interface... */
1242 usb_set_interface(chip->dev, !! 1006 usb_set_interface(chip->dev, iface_no, altno);
1243 if (set_iface_first) !! 1007 snd_usb_init_pitch(chip, iface_no, alts, fp);
1244 usb_set_interface(chi !! 1008 snd_usb_init_sample_rate(chip, iface_no, alts, fp, fp->rate_max);
1245 snd_usb_init_pitch(chip, fp); <<
1246 snd_usb_init_sample_rate(chip <<
1247 if (!set_iface_first) <<
1248 usb_set_interface(chi <<
1249 } 1009 }
1250 return 0; <<
1251 } <<
1252 <<
1253 int snd_usb_parse_audio_interface(struct snd_ <<
1254 { <<
1255 int err; <<
1256 bool has_non_pcm = false; <<
1257 <<
1258 /* parse PCM formats */ <<
1259 err = __snd_usb_parse_audio_interface <<
1260 if (err < 0) <<
1261 return err; <<
1262 <<
1263 if (has_non_pcm) { <<
1264 /* parse non-PCM formats */ <<
1265 err = __snd_usb_parse_audio_i <<
1266 if (err < 0) <<
1267 return err; <<
1268 } <<
1269 <<
1270 return 0; 1010 return 0;
1271 } 1011 }
1272 1012
1273 1013
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