1 // SPDX-License-Identifier: GPL-2.0-or-later 1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* 2 /*
3 */ 3 */
4 4
5 5
6 #include <linux/init.h> 6 #include <linux/init.h>
7 #include <linux/slab.h> 7 #include <linux/slab.h>
8 #include <linux/usb.h> 8 #include <linux/usb.h>
9 #include <linux/usb/audio.h> 9 #include <linux/usb/audio.h>
10 #include <linux/usb/audio-v2.h> 10 #include <linux/usb/audio-v2.h>
11 #include <linux/usb/audio-v3.h> 11 #include <linux/usb/audio-v3.h>
12 12
13 #include <sound/core.h> 13 #include <sound/core.h>
14 #include <sound/pcm.h> 14 #include <sound/pcm.h>
15 #include <sound/control.h> 15 #include <sound/control.h>
16 #include <sound/tlv.h> 16 #include <sound/tlv.h>
17 17
18 #include "usbaudio.h" 18 #include "usbaudio.h"
19 #include "card.h" 19 #include "card.h"
20 #include "proc.h" 20 #include "proc.h"
21 #include "quirks.h" 21 #include "quirks.h"
22 #include "endpoint.h" 22 #include "endpoint.h"
23 #include "pcm.h" 23 #include "pcm.h"
24 #include "helper.h" 24 #include "helper.h"
25 #include "format.h" 25 #include "format.h"
26 #include "clock.h" 26 #include "clock.h"
27 #include "stream.h" 27 #include "stream.h"
28 #include "power.h" 28 #include "power.h"
29 #include "media.h" 29 #include "media.h"
30 30
31 static void audioformat_free(struct audioforma 31 static void audioformat_free(struct audioformat *fp)
32 { 32 {
33 list_del(&fp->list); /* unlink for avo 33 list_del(&fp->list); /* unlink for avoiding double-free */
34 kfree(fp->rate_table); 34 kfree(fp->rate_table);
35 kfree(fp->chmap); 35 kfree(fp->chmap);
36 kfree(fp); 36 kfree(fp);
37 } 37 }
38 38
39 /* 39 /*
40 * free a substream 40 * free a substream
41 */ 41 */
42 static void free_substream(struct snd_usb_subs 42 static void free_substream(struct snd_usb_substream *subs)
43 { 43 {
44 struct audioformat *fp, *n; 44 struct audioformat *fp, *n;
45 45
46 if (!subs->num_formats) 46 if (!subs->num_formats)
47 return; /* not initialized */ 47 return; /* not initialized */
48 list_for_each_entry_safe(fp, n, &subs- 48 list_for_each_entry_safe(fp, n, &subs->fmt_list, list)
49 audioformat_free(fp); 49 audioformat_free(fp);
50 kfree(subs->str_pd); 50 kfree(subs->str_pd);
51 snd_media_stream_delete(subs); 51 snd_media_stream_delete(subs);
52 } 52 }
53 53
54 54
55 /* 55 /*
56 * free a usb stream instance 56 * free a usb stream instance
57 */ 57 */
58 static void snd_usb_audio_stream_free(struct s 58 static void snd_usb_audio_stream_free(struct snd_usb_stream *stream)
59 { 59 {
60 free_substream(&stream->substream[0]); 60 free_substream(&stream->substream[0]);
61 free_substream(&stream->substream[1]); 61 free_substream(&stream->substream[1]);
62 list_del(&stream->list); 62 list_del(&stream->list);
63 kfree(stream); 63 kfree(stream);
64 } 64 }
65 65
66 static void snd_usb_audio_pcm_free(struct snd_ 66 static void snd_usb_audio_pcm_free(struct snd_pcm *pcm)
67 { 67 {
68 struct snd_usb_stream *stream = pcm->p 68 struct snd_usb_stream *stream = pcm->private_data;
69 if (stream) { 69 if (stream) {
70 stream->pcm = NULL; 70 stream->pcm = NULL;
71 snd_usb_audio_stream_free(stre 71 snd_usb_audio_stream_free(stream);
72 } 72 }
73 } 73 }
74 74
75 /* 75 /*
76 * initialize the substream instance. 76 * initialize the substream instance.
77 */ 77 */
78 78
79 static void snd_usb_init_substream(struct snd_ 79 static void snd_usb_init_substream(struct snd_usb_stream *as,
80 int stream, 80 int stream,
81 struct audi 81 struct audioformat *fp,
82 struct snd_ 82 struct snd_usb_power_domain *pd)
83 { 83 {
84 struct snd_usb_substream *subs = &as-> 84 struct snd_usb_substream *subs = &as->substream[stream];
85 85
86 INIT_LIST_HEAD(&subs->fmt_list); 86 INIT_LIST_HEAD(&subs->fmt_list);
87 spin_lock_init(&subs->lock); 87 spin_lock_init(&subs->lock);
88 88
89 subs->stream = as; 89 subs->stream = as;
90 subs->direction = stream; 90 subs->direction = stream;
91 subs->dev = as->chip->dev; 91 subs->dev = as->chip->dev;
92 subs->txfr_quirk = !!(as->chip->quirk_ !! 92 subs->txfr_quirk = as->chip->txfr_quirk;
93 subs->tx_length_quirk = !!(as->chip->q !! 93 subs->tx_length_quirk = as->chip->tx_length_quirk;
94 subs->speed = snd_usb_get_speed(subs-> 94 subs->speed = snd_usb_get_speed(subs->dev);
95 subs->pkt_offset_adj = 0; 95 subs->pkt_offset_adj = 0;
96 subs->stream_offset_adj = 0; 96 subs->stream_offset_adj = 0;
97 97
98 snd_usb_set_pcm_ops(as->pcm, stream); 98 snd_usb_set_pcm_ops(as->pcm, stream);
99 99
100 list_add_tail(&fp->list, &subs->fmt_li 100 list_add_tail(&fp->list, &subs->fmt_list);
101 subs->formats |= fp->formats; 101 subs->formats |= fp->formats;
102 subs->num_formats++; 102 subs->num_formats++;
103 subs->fmt_type = fp->fmt_type; 103 subs->fmt_type = fp->fmt_type;
104 subs->ep_num = fp->endpoint; 104 subs->ep_num = fp->endpoint;
105 if (fp->channels > subs->channels_max) 105 if (fp->channels > subs->channels_max)
106 subs->channels_max = fp->chann 106 subs->channels_max = fp->channels;
107 107
108 if (pd) { 108 if (pd) {
109 subs->str_pd = pd; 109 subs->str_pd = pd;
110 /* Initialize Power Domain to 110 /* Initialize Power Domain to idle status D1 */
111 snd_usb_power_domain_set(subs- 111 snd_usb_power_domain_set(subs->stream->chip, pd,
112 UAC3_ 112 UAC3_PD_STATE_D1);
113 } 113 }
114 114
115 snd_usb_preallocate_buffer(subs); 115 snd_usb_preallocate_buffer(subs);
116 } 116 }
117 117
118 /* kctl callbacks for usb-audio channel maps * 118 /* kctl callbacks for usb-audio channel maps */
119 static int usb_chmap_ctl_info(struct snd_kcont 119 static int usb_chmap_ctl_info(struct snd_kcontrol *kcontrol,
120 struct snd_ctl_e 120 struct snd_ctl_elem_info *uinfo)
121 { 121 {
122 struct snd_pcm_chmap *info = snd_kcont 122 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
123 struct snd_usb_substream *subs = info- 123 struct snd_usb_substream *subs = info->private_data;
124 124
125 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTE 125 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
126 uinfo->count = subs->channels_max; 126 uinfo->count = subs->channels_max;
127 uinfo->value.integer.min = 0; 127 uinfo->value.integer.min = 0;
128 uinfo->value.integer.max = SNDRV_CHMAP 128 uinfo->value.integer.max = SNDRV_CHMAP_LAST;
129 return 0; 129 return 0;
130 } 130 }
131 131
132 /* check whether a duplicated entry exists in 132 /* check whether a duplicated entry exists in the audiofmt list */
133 static bool have_dup_chmap(struct snd_usb_subs 133 static bool have_dup_chmap(struct snd_usb_substream *subs,
134 struct audioformat 134 struct audioformat *fp)
135 { 135 {
136 struct audioformat *prev = fp; 136 struct audioformat *prev = fp;
137 137
138 list_for_each_entry_continue_reverse(p 138 list_for_each_entry_continue_reverse(prev, &subs->fmt_list, list) {
139 if (prev->chmap && 139 if (prev->chmap &&
140 !memcmp(prev->chmap, fp->c 140 !memcmp(prev->chmap, fp->chmap, sizeof(*fp->chmap)))
141 return true; 141 return true;
142 } 142 }
143 return false; 143 return false;
144 } 144 }
145 145
146 static int usb_chmap_ctl_tlv(struct snd_kcontr 146 static int usb_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
147 unsigned int size 147 unsigned int size, unsigned int __user *tlv)
148 { 148 {
149 struct snd_pcm_chmap *info = snd_kcont 149 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
150 struct snd_usb_substream *subs = info- 150 struct snd_usb_substream *subs = info->private_data;
151 struct audioformat *fp; 151 struct audioformat *fp;
152 unsigned int __user *dst; 152 unsigned int __user *dst;
153 int count = 0; 153 int count = 0;
154 154
155 if (size < 8) 155 if (size < 8)
156 return -ENOMEM; 156 return -ENOMEM;
157 if (put_user(SNDRV_CTL_TLVT_CONTAINER, 157 if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
158 return -EFAULT; 158 return -EFAULT;
159 size -= 8; 159 size -= 8;
160 dst = tlv + 2; 160 dst = tlv + 2;
161 list_for_each_entry(fp, &subs->fmt_lis 161 list_for_each_entry(fp, &subs->fmt_list, list) {
162 int i, ch_bytes; 162 int i, ch_bytes;
163 163
164 if (!fp->chmap) 164 if (!fp->chmap)
165 continue; 165 continue;
166 if (have_dup_chmap(subs, fp)) 166 if (have_dup_chmap(subs, fp))
167 continue; 167 continue;
168 /* copy the entry */ 168 /* copy the entry */
169 ch_bytes = fp->chmap->channels 169 ch_bytes = fp->chmap->channels * 4;
170 if (size < 8 + ch_bytes) 170 if (size < 8 + ch_bytes)
171 return -ENOMEM; 171 return -ENOMEM;
172 if (put_user(SNDRV_CTL_TLVT_CH 172 if (put_user(SNDRV_CTL_TLVT_CHMAP_FIXED, dst) ||
173 put_user(ch_bytes, dst + 1 173 put_user(ch_bytes, dst + 1))
174 return -EFAULT; 174 return -EFAULT;
175 dst += 2; 175 dst += 2;
176 for (i = 0; i < fp->chmap->cha 176 for (i = 0; i < fp->chmap->channels; i++, dst++) {
177 if (put_user(fp->chmap 177 if (put_user(fp->chmap->map[i], dst))
178 return -EFAULT 178 return -EFAULT;
179 } 179 }
180 180
181 count += 8 + ch_bytes; 181 count += 8 + ch_bytes;
182 size -= 8 + ch_bytes; 182 size -= 8 + ch_bytes;
183 } 183 }
184 if (put_user(count, tlv + 1)) 184 if (put_user(count, tlv + 1))
185 return -EFAULT; 185 return -EFAULT;
186 return 0; 186 return 0;
187 } 187 }
188 188
189 static int usb_chmap_ctl_get(struct snd_kcontr 189 static int usb_chmap_ctl_get(struct snd_kcontrol *kcontrol,
190 struct snd_ctl_el 190 struct snd_ctl_elem_value *ucontrol)
191 { 191 {
192 struct snd_pcm_chmap *info = snd_kcont 192 struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
193 struct snd_usb_substream *subs = info- 193 struct snd_usb_substream *subs = info->private_data;
194 struct snd_pcm_chmap_elem *chmap = NUL 194 struct snd_pcm_chmap_elem *chmap = NULL;
195 int i = 0; 195 int i = 0;
196 196
197 if (subs->cur_audiofmt) 197 if (subs->cur_audiofmt)
198 chmap = subs->cur_audiofmt->ch 198 chmap = subs->cur_audiofmt->chmap;
199 if (chmap) { 199 if (chmap) {
200 for (i = 0; i < chmap->channel 200 for (i = 0; i < chmap->channels; i++)
201 ucontrol->value.intege 201 ucontrol->value.integer.value[i] = chmap->map[i];
202 } 202 }
203 for (; i < subs->channels_max; i++) 203 for (; i < subs->channels_max; i++)
204 ucontrol->value.integer.value[ 204 ucontrol->value.integer.value[i] = 0;
205 return 0; 205 return 0;
206 } 206 }
207 207
208 /* create a chmap kctl assigned to the given U 208 /* create a chmap kctl assigned to the given USB substream */
209 static int add_chmap(struct snd_pcm *pcm, int 209 static int add_chmap(struct snd_pcm *pcm, int stream,
210 struct snd_usb_substream 210 struct snd_usb_substream *subs)
211 { 211 {
212 struct audioformat *fp; 212 struct audioformat *fp;
213 struct snd_pcm_chmap *chmap; 213 struct snd_pcm_chmap *chmap;
214 struct snd_kcontrol *kctl; 214 struct snd_kcontrol *kctl;
215 int err; 215 int err;
216 216
217 list_for_each_entry(fp, &subs->fmt_lis 217 list_for_each_entry(fp, &subs->fmt_list, list)
218 if (fp->chmap) 218 if (fp->chmap)
219 goto ok; 219 goto ok;
220 /* no chmap is found */ 220 /* no chmap is found */
221 return 0; 221 return 0;
222 222
223 ok: 223 ok:
224 err = snd_pcm_add_chmap_ctls(pcm, stre 224 err = snd_pcm_add_chmap_ctls(pcm, stream, NULL, 0, 0, &chmap);
225 if (err < 0) 225 if (err < 0)
226 return err; 226 return err;
227 227
228 /* override handlers */ 228 /* override handlers */
229 chmap->private_data = subs; 229 chmap->private_data = subs;
230 kctl = chmap->kctl; 230 kctl = chmap->kctl;
231 kctl->info = usb_chmap_ctl_info; 231 kctl->info = usb_chmap_ctl_info;
232 kctl->get = usb_chmap_ctl_get; 232 kctl->get = usb_chmap_ctl_get;
233 kctl->tlv.c = usb_chmap_ctl_tlv; 233 kctl->tlv.c = usb_chmap_ctl_tlv;
234 234
235 return 0; 235 return 0;
236 } 236 }
237 237
238 /* convert from USB ChannelConfig bits to ALSA 238 /* convert from USB ChannelConfig bits to ALSA chmap element */
239 static struct snd_pcm_chmap_elem *convert_chma 239 static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits,
240 240 int protocol)
241 { 241 {
242 static const unsigned int uac1_maps[] 242 static const unsigned int uac1_maps[] = {
243 SNDRV_CHMAP_FL, /* lef 243 SNDRV_CHMAP_FL, /* left front */
244 SNDRV_CHMAP_FR, /* rig 244 SNDRV_CHMAP_FR, /* right front */
245 SNDRV_CHMAP_FC, /* cen 245 SNDRV_CHMAP_FC, /* center front */
246 SNDRV_CHMAP_LFE, /* LFE 246 SNDRV_CHMAP_LFE, /* LFE */
247 SNDRV_CHMAP_RL, /* lef !! 247 SNDRV_CHMAP_SL, /* left surround */
248 SNDRV_CHMAP_RR, /* rig !! 248 SNDRV_CHMAP_SR, /* right surround */
249 SNDRV_CHMAP_FLC, /* lef 249 SNDRV_CHMAP_FLC, /* left of center */
250 SNDRV_CHMAP_FRC, /* rig 250 SNDRV_CHMAP_FRC, /* right of center */
251 SNDRV_CHMAP_RC, /* sur 251 SNDRV_CHMAP_RC, /* surround */
252 SNDRV_CHMAP_SL, /* sid 252 SNDRV_CHMAP_SL, /* side left */
253 SNDRV_CHMAP_SR, /* sid 253 SNDRV_CHMAP_SR, /* side right */
254 SNDRV_CHMAP_TC, /* top 254 SNDRV_CHMAP_TC, /* top */
255 0 /* terminator */ 255 0 /* terminator */
256 }; 256 };
257 static const unsigned int uac2_maps[] 257 static const unsigned int uac2_maps[] = {
258 SNDRV_CHMAP_FL, /* fro 258 SNDRV_CHMAP_FL, /* front left */
259 SNDRV_CHMAP_FR, /* fro 259 SNDRV_CHMAP_FR, /* front right */
260 SNDRV_CHMAP_FC, /* fro 260 SNDRV_CHMAP_FC, /* front center */
261 SNDRV_CHMAP_LFE, /* LFE 261 SNDRV_CHMAP_LFE, /* LFE */
262 SNDRV_CHMAP_RL, /* bac 262 SNDRV_CHMAP_RL, /* back left */
263 SNDRV_CHMAP_RR, /* bac 263 SNDRV_CHMAP_RR, /* back right */
264 SNDRV_CHMAP_FLC, /* fro 264 SNDRV_CHMAP_FLC, /* front left of center */
265 SNDRV_CHMAP_FRC, /* fro 265 SNDRV_CHMAP_FRC, /* front right of center */
266 SNDRV_CHMAP_RC, /* bac 266 SNDRV_CHMAP_RC, /* back center */
267 SNDRV_CHMAP_SL, /* sid 267 SNDRV_CHMAP_SL, /* side left */
268 SNDRV_CHMAP_SR, /* sid 268 SNDRV_CHMAP_SR, /* side right */
269 SNDRV_CHMAP_TC, /* top 269 SNDRV_CHMAP_TC, /* top center */
270 SNDRV_CHMAP_TFL, /* top 270 SNDRV_CHMAP_TFL, /* top front left */
271 SNDRV_CHMAP_TFC, /* top 271 SNDRV_CHMAP_TFC, /* top front center */
272 SNDRV_CHMAP_TFR, /* top 272 SNDRV_CHMAP_TFR, /* top front right */
273 SNDRV_CHMAP_TRL, /* top 273 SNDRV_CHMAP_TRL, /* top back left */
274 SNDRV_CHMAP_TRC, /* top 274 SNDRV_CHMAP_TRC, /* top back center */
275 SNDRV_CHMAP_TRR, /* top 275 SNDRV_CHMAP_TRR, /* top back right */
276 SNDRV_CHMAP_TFLC, /* top 276 SNDRV_CHMAP_TFLC, /* top front left of center */
277 SNDRV_CHMAP_TFRC, /* top 277 SNDRV_CHMAP_TFRC, /* top front right of center */
278 SNDRV_CHMAP_LLFE, /* lef 278 SNDRV_CHMAP_LLFE, /* left LFE */
279 SNDRV_CHMAP_RLFE, /* rig 279 SNDRV_CHMAP_RLFE, /* right LFE */
280 SNDRV_CHMAP_TSL, /* top 280 SNDRV_CHMAP_TSL, /* top side left */
281 SNDRV_CHMAP_TSR, /* top 281 SNDRV_CHMAP_TSR, /* top side right */
282 SNDRV_CHMAP_BC, /* bot 282 SNDRV_CHMAP_BC, /* bottom center */
283 SNDRV_CHMAP_RLC, /* bac 283 SNDRV_CHMAP_RLC, /* back left of center */
284 SNDRV_CHMAP_RRC, /* bac 284 SNDRV_CHMAP_RRC, /* back right of center */
285 0 /* terminator */ 285 0 /* terminator */
286 }; 286 };
287 struct snd_pcm_chmap_elem *chmap; 287 struct snd_pcm_chmap_elem *chmap;
288 const unsigned int *maps; 288 const unsigned int *maps;
289 int c; 289 int c;
290 290
291 if (channels > ARRAY_SIZE(chmap->map)) 291 if (channels > ARRAY_SIZE(chmap->map))
292 return NULL; 292 return NULL;
293 293
294 chmap = kzalloc(sizeof(*chmap), GFP_KE 294 chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
295 if (!chmap) 295 if (!chmap)
296 return NULL; 296 return NULL;
297 297
298 maps = protocol == UAC_VERSION_2 ? uac 298 maps = protocol == UAC_VERSION_2 ? uac2_maps : uac1_maps;
299 chmap->channels = channels; 299 chmap->channels = channels;
300 c = 0; 300 c = 0;
301 301
302 if (bits) { 302 if (bits) {
303 for (; bits && *maps; maps++, !! 303 for (; bits && *maps; maps++, bits >>= 1)
304 if (bits & 1) 304 if (bits & 1)
305 chmap->map[c++ 305 chmap->map[c++] = *maps;
306 if (c == chmap->channe <<
307 break; <<
308 } <<
309 } else { 306 } else {
310 /* If we're missing wChannelCo 307 /* If we're missing wChannelConfig, then guess something
311 to make sure the channel m 308 to make sure the channel map is not skipped entirely */
312 if (channels == 1) 309 if (channels == 1)
313 chmap->map[c++] = SNDR 310 chmap->map[c++] = SNDRV_CHMAP_MONO;
314 else 311 else
315 for (; c < channels && 312 for (; c < channels && *maps; maps++)
316 chmap->map[c++ 313 chmap->map[c++] = *maps;
317 } 314 }
318 315
319 for (; c < channels; c++) 316 for (; c < channels; c++)
320 chmap->map[c] = SNDRV_CHMAP_UN 317 chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
321 318
322 return chmap; 319 return chmap;
323 } 320 }
324 321
325 /* UAC3 device stores channels information in 322 /* UAC3 device stores channels information in Cluster Descriptors */
326 static struct 323 static struct
327 snd_pcm_chmap_elem *convert_chmap_v3(struct ua 324 snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor
328 325 *cluster)
329 { 326 {
330 unsigned int channels = cluster->bNrCh 327 unsigned int channels = cluster->bNrChannels;
331 struct snd_pcm_chmap_elem *chmap; 328 struct snd_pcm_chmap_elem *chmap;
332 void *p = cluster; 329 void *p = cluster;
333 int len, c; 330 int len, c;
334 331
335 if (channels > ARRAY_SIZE(chmap->map)) 332 if (channels > ARRAY_SIZE(chmap->map))
336 return NULL; 333 return NULL;
337 334
338 chmap = kzalloc(sizeof(*chmap), GFP_KE 335 chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
339 if (!chmap) 336 if (!chmap)
340 return NULL; 337 return NULL;
341 338
342 len = le16_to_cpu(cluster->wLength); 339 len = le16_to_cpu(cluster->wLength);
343 c = 0; 340 c = 0;
344 p += sizeof(struct uac3_cluster_header 341 p += sizeof(struct uac3_cluster_header_descriptor);
345 342
346 while (((p - (void *)cluster) < len) & 343 while (((p - (void *)cluster) < len) && (c < channels)) {
347 struct uac3_cluster_segment_de 344 struct uac3_cluster_segment_descriptor *cs_desc = p;
348 u16 cs_len; 345 u16 cs_len;
349 u8 cs_type; 346 u8 cs_type;
350 347
351 cs_len = le16_to_cpu(cs_desc-> 348 cs_len = le16_to_cpu(cs_desc->wLength);
352 cs_type = cs_desc->bSegmentTyp 349 cs_type = cs_desc->bSegmentType;
353 350
354 if (cs_type == UAC3_CHANNEL_IN 351 if (cs_type == UAC3_CHANNEL_INFORMATION) {
355 struct uac3_cluster_in 352 struct uac3_cluster_information_segment_descriptor *is = p;
356 unsigned char map; 353 unsigned char map;
357 354
358 /* 355 /*
359 * TODO: this conversi 356 * TODO: this conversion is not complete, update it
360 * after adding UAC3 v 357 * after adding UAC3 values to asound.h
361 */ 358 */
362 switch (is->bChRelatio 359 switch (is->bChRelationship) {
363 case UAC3_CH_MONO: 360 case UAC3_CH_MONO:
364 map = SNDRV_CH 361 map = SNDRV_CHMAP_MONO;
365 break; 362 break;
366 case UAC3_CH_LEFT: 363 case UAC3_CH_LEFT:
367 case UAC3_CH_FRONT_LEF 364 case UAC3_CH_FRONT_LEFT:
368 case UAC3_CH_HEADPHONE 365 case UAC3_CH_HEADPHONE_LEFT:
369 map = SNDRV_CH 366 map = SNDRV_CHMAP_FL;
370 break; 367 break;
371 case UAC3_CH_RIGHT: 368 case UAC3_CH_RIGHT:
372 case UAC3_CH_FRONT_RIG 369 case UAC3_CH_FRONT_RIGHT:
373 case UAC3_CH_HEADPHONE 370 case UAC3_CH_HEADPHONE_RIGHT:
374 map = SNDRV_CH 371 map = SNDRV_CHMAP_FR;
375 break; 372 break;
376 case UAC3_CH_FRONT_CEN 373 case UAC3_CH_FRONT_CENTER:
377 map = SNDRV_CH 374 map = SNDRV_CHMAP_FC;
378 break; 375 break;
379 case UAC3_CH_FRONT_LEF 376 case UAC3_CH_FRONT_LEFT_OF_CENTER:
380 map = SNDRV_CH 377 map = SNDRV_CHMAP_FLC;
381 break; 378 break;
382 case UAC3_CH_FRONT_RIG 379 case UAC3_CH_FRONT_RIGHT_OF_CENTER:
383 map = SNDRV_CH 380 map = SNDRV_CHMAP_FRC;
384 break; 381 break;
385 case UAC3_CH_SIDE_LEFT 382 case UAC3_CH_SIDE_LEFT:
386 map = SNDRV_CH 383 map = SNDRV_CHMAP_SL;
387 break; 384 break;
388 case UAC3_CH_SIDE_RIGH 385 case UAC3_CH_SIDE_RIGHT:
389 map = SNDRV_CH 386 map = SNDRV_CHMAP_SR;
390 break; 387 break;
391 case UAC3_CH_BACK_LEFT 388 case UAC3_CH_BACK_LEFT:
392 map = SNDRV_CH 389 map = SNDRV_CHMAP_RL;
393 break; 390 break;
394 case UAC3_CH_BACK_RIGH 391 case UAC3_CH_BACK_RIGHT:
395 map = SNDRV_CH 392 map = SNDRV_CHMAP_RR;
396 break; 393 break;
397 case UAC3_CH_BACK_CENT 394 case UAC3_CH_BACK_CENTER:
398 map = SNDRV_CH 395 map = SNDRV_CHMAP_RC;
399 break; 396 break;
400 case UAC3_CH_BACK_LEFT 397 case UAC3_CH_BACK_LEFT_OF_CENTER:
401 map = SNDRV_CH 398 map = SNDRV_CHMAP_RLC;
402 break; 399 break;
403 case UAC3_CH_BACK_RIGH 400 case UAC3_CH_BACK_RIGHT_OF_CENTER:
404 map = SNDRV_CH 401 map = SNDRV_CHMAP_RRC;
405 break; 402 break;
406 case UAC3_CH_TOP_CENTE 403 case UAC3_CH_TOP_CENTER:
407 map = SNDRV_CH 404 map = SNDRV_CHMAP_TC;
408 break; 405 break;
409 case UAC3_CH_TOP_FRONT 406 case UAC3_CH_TOP_FRONT_LEFT:
410 map = SNDRV_CH 407 map = SNDRV_CHMAP_TFL;
411 break; 408 break;
412 case UAC3_CH_TOP_FRONT 409 case UAC3_CH_TOP_FRONT_RIGHT:
413 map = SNDRV_CH 410 map = SNDRV_CHMAP_TFR;
414 break; 411 break;
415 case UAC3_CH_TOP_FRONT 412 case UAC3_CH_TOP_FRONT_CENTER:
416 map = SNDRV_CH 413 map = SNDRV_CHMAP_TFC;
417 break; 414 break;
418 case UAC3_CH_TOP_FRONT 415 case UAC3_CH_TOP_FRONT_LOC:
419 map = SNDRV_CH 416 map = SNDRV_CHMAP_TFLC;
420 break; 417 break;
421 case UAC3_CH_TOP_FRONT 418 case UAC3_CH_TOP_FRONT_ROC:
422 map = SNDRV_CH 419 map = SNDRV_CHMAP_TFRC;
423 break; 420 break;
424 case UAC3_CH_TOP_SIDE_ 421 case UAC3_CH_TOP_SIDE_LEFT:
425 map = SNDRV_CH 422 map = SNDRV_CHMAP_TSL;
426 break; 423 break;
427 case UAC3_CH_TOP_SIDE_ 424 case UAC3_CH_TOP_SIDE_RIGHT:
428 map = SNDRV_CH 425 map = SNDRV_CHMAP_TSR;
429 break; 426 break;
430 case UAC3_CH_TOP_BACK_ 427 case UAC3_CH_TOP_BACK_LEFT:
431 map = SNDRV_CH 428 map = SNDRV_CHMAP_TRL;
432 break; 429 break;
433 case UAC3_CH_TOP_BACK_ 430 case UAC3_CH_TOP_BACK_RIGHT:
434 map = SNDRV_CH 431 map = SNDRV_CHMAP_TRR;
435 break; 432 break;
436 case UAC3_CH_TOP_BACK_ 433 case UAC3_CH_TOP_BACK_CENTER:
437 map = SNDRV_CH 434 map = SNDRV_CHMAP_TRC;
438 break; 435 break;
439 case UAC3_CH_BOTTOM_CE 436 case UAC3_CH_BOTTOM_CENTER:
440 map = SNDRV_CH 437 map = SNDRV_CHMAP_BC;
441 break; 438 break;
442 case UAC3_CH_LOW_FREQU 439 case UAC3_CH_LOW_FREQUENCY_EFFECTS:
443 map = SNDRV_CH 440 map = SNDRV_CHMAP_LFE;
444 break; 441 break;
445 case UAC3_CH_LFE_LEFT: 442 case UAC3_CH_LFE_LEFT:
446 map = SNDRV_CH 443 map = SNDRV_CHMAP_LLFE;
447 break; 444 break;
448 case UAC3_CH_LFE_RIGHT 445 case UAC3_CH_LFE_RIGHT:
449 map = SNDRV_CH 446 map = SNDRV_CHMAP_RLFE;
450 break; 447 break;
451 case UAC3_CH_RELATIONS 448 case UAC3_CH_RELATIONSHIP_UNDEFINED:
452 default: 449 default:
453 map = SNDRV_CH 450 map = SNDRV_CHMAP_UNKNOWN;
454 break; 451 break;
455 } 452 }
456 chmap->map[c++] = map; 453 chmap->map[c++] = map;
457 } 454 }
458 p += cs_len; 455 p += cs_len;
459 } 456 }
460 457
461 if (channels < c) 458 if (channels < c)
462 pr_err("%s: channel number mis 459 pr_err("%s: channel number mismatch\n", __func__);
463 460
464 chmap->channels = channels; 461 chmap->channels = channels;
465 462
466 for (; c < channels; c++) 463 for (; c < channels; c++)
467 chmap->map[c] = SNDRV_CHMAP_UN 464 chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
468 465
469 return chmap; 466 return chmap;
470 } 467 }
471 468
472 /* 469 /*
473 * add this endpoint to the chip instance. 470 * add this endpoint to the chip instance.
474 * if a stream with the same endpoint already 471 * if a stream with the same endpoint already exists, append to it.
475 * if not, create a new pcm stream. note, fp i 472 * 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 473 * 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 474 * fp or do remove it from the substream fmt_list to avoid double-free.
478 */ 475 */
479 static int __snd_usb_add_audio_stream(struct s 476 static int __snd_usb_add_audio_stream(struct snd_usb_audio *chip,
480 int stre 477 int stream,
481 struct a 478 struct audioformat *fp,
482 struct s 479 struct snd_usb_power_domain *pd)
483 480
484 { 481 {
485 struct snd_usb_stream *as; 482 struct snd_usb_stream *as;
486 struct snd_usb_substream *subs; 483 struct snd_usb_substream *subs;
487 struct snd_pcm *pcm; 484 struct snd_pcm *pcm;
488 int err; 485 int err;
489 486
490 list_for_each_entry(as, &chip->pcm_lis 487 list_for_each_entry(as, &chip->pcm_list, list) {
491 if (as->fmt_type != fp->fmt_ty 488 if (as->fmt_type != fp->fmt_type)
492 continue; 489 continue;
493 subs = &as->substream[stream]; 490 subs = &as->substream[stream];
494 if (subs->ep_num == fp->endpoi 491 if (subs->ep_num == fp->endpoint) {
495 list_add_tail(&fp->lis 492 list_add_tail(&fp->list, &subs->fmt_list);
496 subs->num_formats++; 493 subs->num_formats++;
497 subs->formats |= fp->f 494 subs->formats |= fp->formats;
498 return 0; 495 return 0;
499 } 496 }
500 } 497 }
501 <<
502 if (chip->card->registered) <<
503 chip->need_delayed_register = <<
504 <<
505 /* look for an empty stream */ 498 /* look for an empty stream */
506 list_for_each_entry(as, &chip->pcm_lis 499 list_for_each_entry(as, &chip->pcm_list, list) {
507 if (as->fmt_type != fp->fmt_ty 500 if (as->fmt_type != fp->fmt_type)
508 continue; 501 continue;
509 subs = &as->substream[stream]; 502 subs = &as->substream[stream];
510 if (subs->ep_num) 503 if (subs->ep_num)
511 continue; 504 continue;
>> 505 if (snd_device_get_state(chip->card, as->pcm) !=
>> 506 SNDRV_DEV_BUILD)
>> 507 chip->need_delayed_register = true;
512 err = snd_pcm_new_stream(as->p 508 err = snd_pcm_new_stream(as->pcm, stream, 1);
513 if (err < 0) 509 if (err < 0)
514 return err; 510 return err;
515 snd_usb_init_substream(as, str 511 snd_usb_init_substream(as, stream, fp, pd);
516 return add_chmap(as->pcm, stre 512 return add_chmap(as->pcm, stream, subs);
517 } 513 }
518 514
519 /* create a new pcm */ 515 /* create a new pcm */
520 as = kzalloc(sizeof(*as), GFP_KERNEL); 516 as = kzalloc(sizeof(*as), GFP_KERNEL);
521 if (!as) 517 if (!as)
522 return -ENOMEM; 518 return -ENOMEM;
523 as->pcm_index = chip->pcm_devs; 519 as->pcm_index = chip->pcm_devs;
524 as->chip = chip; 520 as->chip = chip;
525 as->fmt_type = fp->fmt_type; 521 as->fmt_type = fp->fmt_type;
526 err = snd_pcm_new(chip->card, "USB Aud 522 err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs,
527 stream == SNDRV_PCM_ 523 stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0,
528 stream == SNDRV_PCM_ 524 stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1,
529 &pcm); 525 &pcm);
530 if (err < 0) { 526 if (err < 0) {
531 kfree(as); 527 kfree(as);
532 return err; 528 return err;
533 } 529 }
534 as->pcm = pcm; 530 as->pcm = pcm;
535 pcm->private_data = as; 531 pcm->private_data = as;
536 pcm->private_free = snd_usb_audio_pcm_ 532 pcm->private_free = snd_usb_audio_pcm_free;
537 pcm->info_flags = 0; 533 pcm->info_flags = 0;
538 if (chip->pcm_devs > 0) 534 if (chip->pcm_devs > 0)
539 sprintf(pcm->name, "USB Audio 535 sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs);
540 else 536 else
541 strcpy(pcm->name, "USB Audio") 537 strcpy(pcm->name, "USB Audio");
542 538
543 snd_usb_init_substream(as, stream, fp, 539 snd_usb_init_substream(as, stream, fp, pd);
544 540
545 /* 541 /*
546 * Keep using head insertion for M-Aud 542 * Keep using head insertion for M-Audio Audiophile USB (tm) which has a
547 * fix to swap capture stream order in 543 * fix to swap capture stream order in conf/cards/USB-audio.conf
548 */ 544 */
549 if (chip->usb_id == USB_ID(0x0763, 0x2 545 if (chip->usb_id == USB_ID(0x0763, 0x2003))
550 list_add(&as->list, &chip->pcm 546 list_add(&as->list, &chip->pcm_list);
551 else 547 else
552 list_add_tail(&as->list, &chip 548 list_add_tail(&as->list, &chip->pcm_list);
553 549
554 chip->pcm_devs++; 550 chip->pcm_devs++;
555 551
556 snd_usb_proc_pcm_format_add(as); 552 snd_usb_proc_pcm_format_add(as);
557 553
558 return add_chmap(pcm, stream, &as->sub 554 return add_chmap(pcm, stream, &as->substream[stream]);
559 } 555 }
560 556
561 int snd_usb_add_audio_stream(struct snd_usb_au 557 int snd_usb_add_audio_stream(struct snd_usb_audio *chip,
562 int stream, 558 int stream,
563 struct audioforma 559 struct audioformat *fp)
564 { 560 {
565 return __snd_usb_add_audio_stream(chip 561 return __snd_usb_add_audio_stream(chip, stream, fp, NULL);
566 } 562 }
567 563
568 static int snd_usb_add_audio_stream_v3(struct 564 static int snd_usb_add_audio_stream_v3(struct snd_usb_audio *chip,
569 int str 565 int stream,
570 struct 566 struct audioformat *fp,
571 struct 567 struct snd_usb_power_domain *pd)
572 { 568 {
573 return __snd_usb_add_audio_stream(chip 569 return __snd_usb_add_audio_stream(chip, stream, fp, pd);
574 } 570 }
575 571
576 static int parse_uac_endpoint_attributes(struc 572 static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip,
577 struc 573 struct usb_host_interface *alts,
578 int p 574 int protocol, int iface_no)
579 { 575 {
580 /* parsed with a v1 header here. that' 576 /* parsed with a v1 header here. that's ok as we only look at the
581 * header first which is the same for 577 * header first which is the same for both versions */
582 struct uac_iso_endpoint_descriptor *cs 578 struct uac_iso_endpoint_descriptor *csep;
583 struct usb_interface_descriptor *altsd 579 struct usb_interface_descriptor *altsd = get_iface_desc(alts);
584 int attributes = 0; 580 int attributes = 0;
585 581
586 csep = snd_usb_find_desc(alts->endpoin 582 csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT);
587 583
588 /* Creamware Noah has this descriptor 584 /* Creamware Noah has this descriptor after the 2nd endpoint */
589 if (!csep && altsd->bNumEndpoints >= 2 585 if (!csep && altsd->bNumEndpoints >= 2)
590 csep = snd_usb_find_desc(alts- 586 csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);
591 587
592 /* 588 /*
593 * If we can't locate the USB_DT_CS_EN 589 * If we can't locate the USB_DT_CS_ENDPOINT descriptor in the extra
594 * bytes after the first endpoint, go 590 * bytes after the first endpoint, go search the entire interface.
595 * Some devices have it directly *befo 591 * Some devices have it directly *before* the standard endpoint.
596 */ 592 */
597 if (!csep) 593 if (!csep)
598 csep = snd_usb_find_desc(alts- 594 csep = snd_usb_find_desc(alts->extra, alts->extralen, NULL, USB_DT_CS_ENDPOINT);
599 595
600 if (!csep || csep->bLength < 7 || 596 if (!csep || csep->bLength < 7 ||
601 csep->bDescriptorSubtype != UAC_EP 597 csep->bDescriptorSubtype != UAC_EP_GENERAL)
602 goto error; 598 goto error;
603 599
604 if (protocol == UAC_VERSION_1) { 600 if (protocol == UAC_VERSION_1) {
605 attributes = csep->bmAttribute 601 attributes = csep->bmAttributes;
606 } else if (protocol == UAC_VERSION_2) 602 } else if (protocol == UAC_VERSION_2) {
607 struct uac2_iso_endpoint_descr 603 struct uac2_iso_endpoint_descriptor *csep2 =
608 (struct uac2_iso_endpo 604 (struct uac2_iso_endpoint_descriptor *) csep;
609 605
610 if (csep2->bLength < sizeof(*c 606 if (csep2->bLength < sizeof(*csep2))
611 goto error; 607 goto error;
612 attributes = csep->bmAttribute 608 attributes = csep->bmAttributes & UAC_EP_CS_ATTR_FILL_MAX;
613 609
614 /* emulate the endpoint attrib 610 /* emulate the endpoint attributes of a v1 device */
615 if (csep2->bmControls & UAC2_C 611 if (csep2->bmControls & UAC2_CONTROL_PITCH)
616 attributes |= UAC_EP_C 612 attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
617 } else { /* UAC_VERSION_3 */ 613 } else { /* UAC_VERSION_3 */
618 struct uac3_iso_endpoint_descr 614 struct uac3_iso_endpoint_descriptor *csep3 =
619 (struct uac3_iso_endpo 615 (struct uac3_iso_endpoint_descriptor *) csep;
620 616
621 if (csep3->bLength < sizeof(*c 617 if (csep3->bLength < sizeof(*csep3))
622 goto error; 618 goto error;
623 /* emulate the endpoint attrib 619 /* emulate the endpoint attributes of a v1 device */
624 if (le32_to_cpu(csep3->bmContr 620 if (le32_to_cpu(csep3->bmControls) & UAC2_CONTROL_PITCH)
625 attributes |= UAC_EP_C 621 attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
626 } 622 }
627 623
628 return attributes; 624 return attributes;
629 625
630 error: 626 error:
631 usb_audio_warn(chip, 627 usb_audio_warn(chip,
632 "%u:%d : no or invalid 628 "%u:%d : no or invalid class specific endpoint descriptor\n",
633 iface_no, altsd->bAlter 629 iface_no, altsd->bAlternateSetting);
634 return 0; 630 return 0;
635 } 631 }
636 632
637 /* find an input terminal descriptor (either U 633 /* find an input terminal descriptor (either UAC1 or UAC2) with the given
638 * terminal id 634 * terminal id
639 */ 635 */
640 static void * 636 static void *
641 snd_usb_find_input_terminal_descriptor(struct 637 snd_usb_find_input_terminal_descriptor(struct usb_host_interface *ctrl_iface,
642 int ter 638 int terminal_id, int protocol)
643 { 639 {
644 struct uac2_input_terminal_descriptor 640 struct uac2_input_terminal_descriptor *term = NULL;
645 641
646 while ((term = snd_usb_find_csint_desc 642 while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
647 643 ctrl_iface->extralen,
648 644 term, UAC_INPUT_TERMINAL))) {
649 if (!snd_usb_validate_audio_de 645 if (!snd_usb_validate_audio_desc(term, protocol))
650 continue; 646 continue;
651 if (term->bTerminalID == termi 647 if (term->bTerminalID == terminal_id)
652 return term; 648 return term;
653 } 649 }
654 650
655 return NULL; 651 return NULL;
656 } 652 }
657 653
658 static void * 654 static void *
659 snd_usb_find_output_terminal_descriptor(struct 655 snd_usb_find_output_terminal_descriptor(struct usb_host_interface *ctrl_iface,
660 int te 656 int terminal_id, int protocol)
661 { 657 {
662 /* OK to use with both UAC2 and UAC3 * 658 /* OK to use with both UAC2 and UAC3 */
663 struct uac2_output_terminal_descriptor 659 struct uac2_output_terminal_descriptor *term = NULL;
664 660
665 while ((term = snd_usb_find_csint_desc 661 while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
666 662 ctrl_iface->extralen,
667 663 term, UAC_OUTPUT_TERMINAL))) {
668 if (!snd_usb_validate_audio_de 664 if (!snd_usb_validate_audio_desc(term, protocol))
669 continue; 665 continue;
670 if (term->bTerminalID == termi 666 if (term->bTerminalID == terminal_id)
671 return term; 667 return term;
672 } 668 }
673 669
674 return NULL; 670 return NULL;
675 } 671 }
676 672
677 static struct audioformat * 673 static struct audioformat *
678 audio_format_alloc_init(struct snd_usb_audio * 674 audio_format_alloc_init(struct snd_usb_audio *chip,
679 struct usb_host_interfa 675 struct usb_host_interface *alts,
680 int protocol, int iface 676 int protocol, int iface_no, int altset_idx,
681 int altno, int num_chan 677 int altno, int num_channels, int clock)
682 { 678 {
683 struct audioformat *fp; 679 struct audioformat *fp;
684 680
685 fp = kzalloc(sizeof(*fp), GFP_KERNEL); 681 fp = kzalloc(sizeof(*fp), GFP_KERNEL);
686 if (!fp) 682 if (!fp)
687 return NULL; 683 return NULL;
688 684
689 fp->iface = iface_no; 685 fp->iface = iface_no;
690 fp->altsetting = altno; 686 fp->altsetting = altno;
691 fp->altset_idx = altset_idx; 687 fp->altset_idx = altset_idx;
692 fp->endpoint = get_endpoint(alts, 0)-> 688 fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
693 fp->ep_attr = get_endpoint(alts, 0)->b 689 fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
694 fp->datainterval = snd_usb_parse_datai 690 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
695 fp->protocol = protocol; 691 fp->protocol = protocol;
696 fp->maxpacksize = le16_to_cpu(get_endp 692 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
697 fp->channels = num_channels; 693 fp->channels = num_channels;
698 if (snd_usb_get_speed(chip->dev) == US 694 if (snd_usb_get_speed(chip->dev) == USB_SPEED_HIGH)
699 fp->maxpacksize = (((fp->maxpa 695 fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
700 * (fp->maxpack 696 * (fp->maxpacksize & 0x7ff);
701 fp->clock = clock; 697 fp->clock = clock;
702 INIT_LIST_HEAD(&fp->list); 698 INIT_LIST_HEAD(&fp->list);
703 699
704 return fp; 700 return fp;
705 } 701 }
706 702
707 static struct audioformat * 703 static struct audioformat *
708 snd_usb_get_audioformat_uac12(struct snd_usb_a 704 snd_usb_get_audioformat_uac12(struct snd_usb_audio *chip,
709 struct usb_host_ 705 struct usb_host_interface *alts,
710 int protocol, in 706 int protocol, int iface_no, int altset_idx,
711 int altno, int s 707 int altno, int stream, int bm_quirk)
712 { 708 {
713 struct usb_device *dev = chip->dev; 709 struct usb_device *dev = chip->dev;
714 struct uac_format_type_i_continuous_de 710 struct uac_format_type_i_continuous_descriptor *fmt;
715 unsigned int num_channels = 0, chconfi 711 unsigned int num_channels = 0, chconfig = 0;
716 struct usb_host_interface *ctrl_intf; <<
717 struct audioformat *fp; 712 struct audioformat *fp;
718 int clock = 0; 713 int clock = 0;
719 u64 format; 714 u64 format;
720 715
721 ctrl_intf = snd_usb_find_ctrl_interfac <<
722 <<
723 /* get audio formats */ 716 /* get audio formats */
724 if (protocol == UAC_VERSION_1) { 717 if (protocol == UAC_VERSION_1) {
725 struct uac1_as_header_descript 718 struct uac1_as_header_descriptor *as =
726 snd_usb_find_csint_des 719 snd_usb_find_csint_desc(alts->extra, alts->extralen,
727 720 NULL, UAC_AS_GENERAL);
728 struct uac_input_terminal_desc 721 struct uac_input_terminal_descriptor *iterm;
729 722
730 if (!as) { 723 if (!as) {
731 dev_err(&dev->dev, 724 dev_err(&dev->dev,
732 "%u:%d : UAC_A 725 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
733 iface_no, altn 726 iface_no, altno);
734 return NULL; 727 return NULL;
735 } 728 }
736 729
737 if (as->bLength < sizeof(*as)) 730 if (as->bLength < sizeof(*as)) {
738 dev_err(&dev->dev, 731 dev_err(&dev->dev,
739 "%u:%d : inval 732 "%u:%d : invalid UAC_AS_GENERAL desc\n",
740 iface_no, altn 733 iface_no, altno);
741 return NULL; 734 return NULL;
742 } 735 }
743 736
744 format = le16_to_cpu(as->wForm 737 format = le16_to_cpu(as->wFormatTag); /* remember the format value */
745 738
746 iterm = snd_usb_find_input_ter !! 739 iterm = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
747 740 as->bTerminalLink,
748 741 protocol);
749 if (iterm) { 742 if (iterm) {
750 num_channels = iterm-> 743 num_channels = iterm->bNrChannels;
751 chconfig = le16_to_cpu 744 chconfig = le16_to_cpu(iterm->wChannelConfig);
752 } 745 }
753 } else { /* UAC_VERSION_2 */ 746 } else { /* UAC_VERSION_2 */
754 struct uac2_input_terminal_des 747 struct uac2_input_terminal_descriptor *input_term;
755 struct uac2_output_terminal_de 748 struct uac2_output_terminal_descriptor *output_term;
756 struct uac2_as_header_descript 749 struct uac2_as_header_descriptor *as =
757 snd_usb_find_csint_des 750 snd_usb_find_csint_desc(alts->extra, alts->extralen,
758 751 NULL, UAC_AS_GENERAL);
759 752
760 if (!as) { 753 if (!as) {
761 dev_err(&dev->dev, 754 dev_err(&dev->dev,
762 "%u:%d : UAC_A 755 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
763 iface_no, altn 756 iface_no, altno);
764 return NULL; 757 return NULL;
765 } 758 }
766 759
767 if (as->bLength < sizeof(*as)) 760 if (as->bLength < sizeof(*as)) {
768 dev_err(&dev->dev, 761 dev_err(&dev->dev,
769 "%u:%d : inval 762 "%u:%d : invalid UAC_AS_GENERAL desc\n",
770 iface_no, altn 763 iface_no, altno);
771 return NULL; 764 return NULL;
772 } 765 }
773 766
774 num_channels = as->bNrChannels 767 num_channels = as->bNrChannels;
775 format = le32_to_cpu(as->bmFor 768 format = le32_to_cpu(as->bmFormats);
776 chconfig = le32_to_cpu(as->bmC 769 chconfig = le32_to_cpu(as->bmChannelConfig);
777 770
778 /* 771 /*
779 * lookup the terminal associa 772 * lookup the terminal associated to this interface
780 * to extract the clock 773 * to extract the clock
781 */ 774 */
782 input_term = snd_usb_find_inpu !! 775 input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
783 776 as->bTerminalLink,
784 777 protocol);
785 if (input_term) { 778 if (input_term) {
786 clock = input_term->bC 779 clock = input_term->bCSourceID;
787 if (!chconfig && (num_ 780 if (!chconfig && (num_channels == input_term->bNrChannels))
788 chconfig = le3 781 chconfig = le32_to_cpu(input_term->bmChannelConfig);
789 goto found_clock; 782 goto found_clock;
790 } 783 }
791 784
792 output_term = snd_usb_find_out !! 785 output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf,
793 786 as->bTerminalLink,
794 787 protocol);
795 if (output_term) { 788 if (output_term) {
796 clock = output_term->b 789 clock = output_term->bCSourceID;
797 goto found_clock; 790 goto found_clock;
798 } 791 }
799 792
800 dev_err(&dev->dev, 793 dev_err(&dev->dev,
801 "%u:%d : bogus bTermin 794 "%u:%d : bogus bTerminalLink %d\n",
802 iface_no, altno, as->b 795 iface_no, altno, as->bTerminalLink);
803 return NULL; 796 return NULL;
804 } 797 }
805 798
806 found_clock: 799 found_clock:
807 /* get format type */ 800 /* get format type */
808 fmt = snd_usb_find_csint_desc(alts->ex 801 fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen,
809 NULL, UA 802 NULL, UAC_FORMAT_TYPE);
810 if (!fmt) { 803 if (!fmt) {
811 dev_err(&dev->dev, 804 dev_err(&dev->dev,
812 "%u:%d : no UAC_FORMAT 805 "%u:%d : no UAC_FORMAT_TYPE desc\n",
813 iface_no, altno); 806 iface_no, altno);
814 return NULL; 807 return NULL;
815 } 808 }
816 if (((protocol == UAC_VERSION_1) && (f 809 if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8))
817 || ((protocol == UAC_V 810 || ((protocol == UAC_VERSION_2) &&
818 (fmt-> 811 (fmt->bLength < 6))) {
819 dev_err(&dev->dev, 812 dev_err(&dev->dev,
820 "%u:%d : invalid UAC_F 813 "%u:%d : invalid UAC_FORMAT_TYPE desc\n",
821 iface_no, altno); 814 iface_no, altno);
822 return NULL; 815 return NULL;
823 } 816 }
824 817
825 /* 818 /*
826 * Blue Microphones workaround: The la 819 * Blue Microphones workaround: The last altsetting is
827 * identical with the previous one, ex 820 * identical with the previous one, except for a larger
828 * packet size, but is actually a misl 821 * packet size, but is actually a mislabeled two-channel
829 * setting; ignore it. 822 * setting; ignore it.
830 * 823 *
831 * Part 2: analyze quirk flag and form 824 * Part 2: analyze quirk flag and format
832 */ 825 */
833 if (bm_quirk && fmt->bNrChannels == 1 826 if (bm_quirk && fmt->bNrChannels == 1 && fmt->bSubframeSize == 2)
834 return NULL; 827 return NULL;
835 828
836 fp = audio_format_alloc_init(chip, alt 829 fp = audio_format_alloc_init(chip, alts, protocol, iface_no,
837 altset_id 830 altset_idx, altno, num_channels, clock);
838 if (!fp) 831 if (!fp)
839 return ERR_PTR(-ENOMEM); 832 return ERR_PTR(-ENOMEM);
840 833
841 fp->attributes = parse_uac_endpoint_at 834 fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol,
842 835 iface_no);
843 836
844 /* some quirks for attributes here */ 837 /* some quirks for attributes here */
845 snd_usb_audioformat_attributes_quirk(c 838 snd_usb_audioformat_attributes_quirk(chip, fp, stream);
846 839
847 /* ok, let's parse further... */ 840 /* ok, let's parse further... */
848 if (snd_usb_parse_audio_format(chip, f 841 if (snd_usb_parse_audio_format(chip, fp, format,
849 fmt, s 842 fmt, stream) < 0) {
850 audioformat_free(fp); 843 audioformat_free(fp);
851 return NULL; 844 return NULL;
852 } 845 }
853 846
854 /* Create chmap */ 847 /* Create chmap */
855 if (fp->channels != num_channels) 848 if (fp->channels != num_channels)
856 chconfig = 0; 849 chconfig = 0;
857 850
858 fp->chmap = convert_chmap(fp->channels 851 fp->chmap = convert_chmap(fp->channels, chconfig, protocol);
859 852
860 return fp; 853 return fp;
861 } 854 }
862 855
863 static struct audioformat * 856 static struct audioformat *
864 snd_usb_get_audioformat_uac3(struct snd_usb_au 857 snd_usb_get_audioformat_uac3(struct snd_usb_audio *chip,
865 struct usb_host_i 858 struct usb_host_interface *alts,
866 struct snd_usb_po 859 struct snd_usb_power_domain **pd_out,
867 int iface_no, int 860 int iface_no, int altset_idx,
868 int altno, int st 861 int altno, int stream)
869 { 862 {
870 struct usb_device *dev = chip->dev; 863 struct usb_device *dev = chip->dev;
871 struct uac3_input_terminal_descriptor 864 struct uac3_input_terminal_descriptor *input_term;
872 struct uac3_output_terminal_descriptor 865 struct uac3_output_terminal_descriptor *output_term;
873 struct uac3_cluster_header_descriptor 866 struct uac3_cluster_header_descriptor *cluster;
874 struct uac3_as_header_descriptor *as = 867 struct uac3_as_header_descriptor *as = NULL;
875 struct uac3_hc_descriptor_header hc_he 868 struct uac3_hc_descriptor_header hc_header;
876 struct usb_host_interface *ctrl_intf; <<
877 struct snd_pcm_chmap_elem *chmap; 869 struct snd_pcm_chmap_elem *chmap;
878 struct snd_usb_power_domain *pd; 870 struct snd_usb_power_domain *pd;
879 unsigned char badd_profile; 871 unsigned char badd_profile;
880 u64 badd_formats = 0; 872 u64 badd_formats = 0;
881 unsigned int num_channels; 873 unsigned int num_channels;
882 struct audioformat *fp; 874 struct audioformat *fp;
883 u16 cluster_id, wLength; 875 u16 cluster_id, wLength;
884 int clock = 0; 876 int clock = 0;
885 int err; 877 int err;
886 878
887 badd_profile = chip->badd_profile; 879 badd_profile = chip->badd_profile;
888 ctrl_intf = snd_usb_find_ctrl_interfac <<
889 880
890 if (badd_profile >= UAC3_FUNCTION_SUBC 881 if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
891 unsigned int maxpacksize = 882 unsigned int maxpacksize =
892 le16_to_cpu(get_endpoi 883 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
893 884
894 switch (maxpacksize) { 885 switch (maxpacksize) {
895 default: 886 default:
896 dev_err(&dev->dev, 887 dev_err(&dev->dev,
897 "%u:%d : incor 888 "%u:%d : incorrect wMaxPacketSize for BADD profile\n",
898 iface_no, altn 889 iface_no, altno);
899 return NULL; 890 return NULL;
900 case UAC3_BADD_EP_MAXPSIZE_SYN 891 case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16:
901 case UAC3_BADD_EP_MAXPSIZE_ASY 892 case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16:
902 badd_formats = SNDRV_P 893 badd_formats = SNDRV_PCM_FMTBIT_S16_LE;
903 num_channels = 1; 894 num_channels = 1;
904 break; 895 break;
905 case UAC3_BADD_EP_MAXPSIZE_SYN 896 case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24:
906 case UAC3_BADD_EP_MAXPSIZE_ASY 897 case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24:
907 badd_formats = SNDRV_P 898 badd_formats = SNDRV_PCM_FMTBIT_S24_3LE;
908 num_channels = 1; 899 num_channels = 1;
909 break; 900 break;
910 case UAC3_BADD_EP_MAXPSIZE_SYN 901 case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16:
911 case UAC3_BADD_EP_MAXPSIZE_ASY 902 case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16:
912 badd_formats = SNDRV_P 903 badd_formats = SNDRV_PCM_FMTBIT_S16_LE;
913 num_channels = 2; 904 num_channels = 2;
914 break; 905 break;
915 case UAC3_BADD_EP_MAXPSIZE_SYN 906 case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24:
916 case UAC3_BADD_EP_MAXPSIZE_ASY 907 case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24:
917 badd_formats = SNDRV_P 908 badd_formats = SNDRV_PCM_FMTBIT_S24_3LE;
918 num_channels = 2; 909 num_channels = 2;
919 break; 910 break;
920 } 911 }
921 912
922 chmap = kzalloc(sizeof(*chmap) 913 chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
923 if (!chmap) 914 if (!chmap)
924 return ERR_PTR(-ENOMEM 915 return ERR_PTR(-ENOMEM);
925 916
926 if (num_channels == 1) { 917 if (num_channels == 1) {
927 chmap->map[0] = SNDRV_ 918 chmap->map[0] = SNDRV_CHMAP_MONO;
928 } else { 919 } else {
929 chmap->map[0] = SNDRV_ 920 chmap->map[0] = SNDRV_CHMAP_FL;
930 chmap->map[1] = SNDRV_ 921 chmap->map[1] = SNDRV_CHMAP_FR;
931 } 922 }
932 923
933 chmap->channels = num_channels 924 chmap->channels = num_channels;
934 clock = UAC3_BADD_CS_ID9; 925 clock = UAC3_BADD_CS_ID9;
935 goto found_clock; 926 goto found_clock;
936 } 927 }
937 928
938 as = snd_usb_find_csint_desc(alts->ext 929 as = snd_usb_find_csint_desc(alts->extra, alts->extralen,
939 NULL, UAC 930 NULL, UAC_AS_GENERAL);
940 if (!as) { 931 if (!as) {
941 dev_err(&dev->dev, 932 dev_err(&dev->dev,
942 "%u:%d : UAC_AS_GENERA 933 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
943 iface_no, altno); 934 iface_no, altno);
944 return NULL; 935 return NULL;
945 } 936 }
946 937
947 if (as->bLength < sizeof(*as)) { 938 if (as->bLength < sizeof(*as)) {
948 dev_err(&dev->dev, 939 dev_err(&dev->dev,
949 "%u:%d : invalid UAC_A 940 "%u:%d : invalid UAC_AS_GENERAL desc\n",
950 iface_no, altno); 941 iface_no, altno);
951 return NULL; 942 return NULL;
952 } 943 }
953 944
954 cluster_id = le16_to_cpu(as->wClusterD 945 cluster_id = le16_to_cpu(as->wClusterDescrID);
955 if (!cluster_id) { 946 if (!cluster_id) {
956 dev_err(&dev->dev, 947 dev_err(&dev->dev,
957 "%u:%d : no cluster de 948 "%u:%d : no cluster descriptor\n",
958 iface_no, altno); 949 iface_no, altno);
959 return NULL; 950 return NULL;
960 } 951 }
961 952
962 /* 953 /*
963 * Get number of channels and channel 954 * Get number of channels and channel map through
964 * High Capability Cluster Descriptor 955 * High Capability Cluster Descriptor
965 * 956 *
966 * First step: get High Capability hea 957 * First step: get High Capability header and
967 * read size of Cluster Descriptor 958 * read size of Cluster Descriptor
968 */ 959 */
969 err = snd_usb_ctl_msg(chip->dev, 960 err = snd_usb_ctl_msg(chip->dev,
970 usb_rcvctrlpipe(chip-> 961 usb_rcvctrlpipe(chip->dev, 0),
971 UAC3_CS_REQ_HIGH_CAPAB 962 UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
972 USB_RECIP_INTERFACE | 963 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
973 cluster_id, 964 cluster_id,
974 snd_usb_ctrl_intf(ctrl !! 965 snd_usb_ctrl_intf(chip),
975 &hc_header, sizeof(hc_ 966 &hc_header, sizeof(hc_header));
976 if (err < 0) 967 if (err < 0)
977 return ERR_PTR(err); 968 return ERR_PTR(err);
978 else if (err != sizeof(hc_header)) { 969 else if (err != sizeof(hc_header)) {
979 dev_err(&dev->dev, 970 dev_err(&dev->dev,
980 "%u:%d : can't get Hig 971 "%u:%d : can't get High Capability descriptor\n",
981 iface_no, altno); 972 iface_no, altno);
982 return ERR_PTR(-EIO); 973 return ERR_PTR(-EIO);
983 } 974 }
984 975
985 /* 976 /*
986 * Second step: allocate needed amount 977 * Second step: allocate needed amount of memory
987 * and request Cluster Descriptor 978 * and request Cluster Descriptor
988 */ 979 */
989 wLength = le16_to_cpu(hc_header.wLengt 980 wLength = le16_to_cpu(hc_header.wLength);
990 cluster = kzalloc(wLength, GFP_KERNEL) 981 cluster = kzalloc(wLength, GFP_KERNEL);
991 if (!cluster) 982 if (!cluster)
992 return ERR_PTR(-ENOMEM); 983 return ERR_PTR(-ENOMEM);
993 err = snd_usb_ctl_msg(chip->dev, 984 err = snd_usb_ctl_msg(chip->dev,
994 usb_rcvctrlpipe(chip-> 985 usb_rcvctrlpipe(chip->dev, 0),
995 UAC3_CS_REQ_HIGH_CAPAB 986 UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
996 USB_RECIP_INTERFACE | 987 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
997 cluster_id, 988 cluster_id,
998 snd_usb_ctrl_intf(ctrl !! 989 snd_usb_ctrl_intf(chip),
999 cluster, wLength); 990 cluster, wLength);
1000 if (err < 0) { 991 if (err < 0) {
1001 kfree(cluster); 992 kfree(cluster);
1002 return ERR_PTR(err); 993 return ERR_PTR(err);
1003 } else if (err != wLength) { 994 } else if (err != wLength) {
1004 dev_err(&dev->dev, 995 dev_err(&dev->dev,
1005 "%u:%d : can't get Cl 996 "%u:%d : can't get Cluster Descriptor\n",
1006 iface_no, altno); 997 iface_no, altno);
1007 kfree(cluster); 998 kfree(cluster);
1008 return ERR_PTR(-EIO); 999 return ERR_PTR(-EIO);
1009 } 1000 }
1010 1001
1011 num_channels = cluster->bNrChannels; 1002 num_channels = cluster->bNrChannels;
1012 chmap = convert_chmap_v3(cluster); 1003 chmap = convert_chmap_v3(cluster);
1013 kfree(cluster); 1004 kfree(cluster);
1014 1005
1015 /* 1006 /*
1016 * lookup the terminal associated to 1007 * lookup the terminal associated to this interface
1017 * to extract the clock 1008 * to extract the clock
1018 */ 1009 */
1019 input_term = snd_usb_find_input_termi !! 1010 input_term = snd_usb_find_input_terminal_descriptor(chip->ctrl_intf,
1020 1011 as->bTerminalLink,
1021 1012 UAC_VERSION_3);
1022 if (input_term) { 1013 if (input_term) {
1023 clock = input_term->bCSourceI 1014 clock = input_term->bCSourceID;
1024 goto found_clock; 1015 goto found_clock;
1025 } 1016 }
1026 1017
1027 output_term = snd_usb_find_output_ter !! 1018 output_term = snd_usb_find_output_terminal_descriptor(chip->ctrl_intf,
1028 1019 as->bTerminalLink,
1029 1020 UAC_VERSION_3);
1030 if (output_term) { 1021 if (output_term) {
1031 clock = output_term->bCSource 1022 clock = output_term->bCSourceID;
1032 goto found_clock; 1023 goto found_clock;
1033 } 1024 }
1034 1025
1035 dev_err(&dev->dev, "%u:%d : bogus bTe 1026 dev_err(&dev->dev, "%u:%d : bogus bTerminalLink %d\n",
1036 iface_no, altno, as-> 1027 iface_no, altno, as->bTerminalLink);
1037 kfree(chmap); 1028 kfree(chmap);
1038 return NULL; 1029 return NULL;
1039 1030
1040 found_clock: 1031 found_clock:
1041 fp = audio_format_alloc_init(chip, al 1032 fp = audio_format_alloc_init(chip, alts, UAC_VERSION_3, iface_no,
1042 altset_i 1033 altset_idx, altno, num_channels, clock);
1043 if (!fp) { 1034 if (!fp) {
1044 kfree(chmap); 1035 kfree(chmap);
1045 return ERR_PTR(-ENOMEM); 1036 return ERR_PTR(-ENOMEM);
1046 } 1037 }
1047 1038
1048 fp->chmap = chmap; 1039 fp->chmap = chmap;
1049 1040
1050 if (badd_profile >= UAC3_FUNCTION_SUB 1041 if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
1051 fp->attributes = 0; /* No att 1042 fp->attributes = 0; /* No attributes */
1052 1043
1053 fp->fmt_type = UAC_FORMAT_TYP 1044 fp->fmt_type = UAC_FORMAT_TYPE_I;
1054 fp->formats = badd_formats; 1045 fp->formats = badd_formats;
1055 1046
1056 fp->nr_rates = 0; /* SN 1047 fp->nr_rates = 0; /* SNDRV_PCM_RATE_CONTINUOUS */
1057 fp->rate_min = UAC3_BADD_SAMP 1048 fp->rate_min = UAC3_BADD_SAMPLING_RATE;
1058 fp->rate_max = UAC3_BADD_SAMP 1049 fp->rate_max = UAC3_BADD_SAMPLING_RATE;
1059 fp->rates = SNDRV_PCM_RATE_CO 1050 fp->rates = SNDRV_PCM_RATE_CONTINUOUS;
1060 1051
1061 pd = kzalloc(sizeof(*pd), GFP 1052 pd = kzalloc(sizeof(*pd), GFP_KERNEL);
1062 if (!pd) { 1053 if (!pd) {
1063 audioformat_free(fp); 1054 audioformat_free(fp);
1064 return NULL; 1055 return NULL;
1065 } 1056 }
1066 pd->pd_id = (stream == SNDRV_ 1057 pd->pd_id = (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
1067 UAC3_ 1058 UAC3_BADD_PD_ID10 : UAC3_BADD_PD_ID11;
1068 pd->pd_d1d0_rec = UAC3_BADD_P 1059 pd->pd_d1d0_rec = UAC3_BADD_PD_RECOVER_D1D0;
1069 pd->pd_d2d0_rec = UAC3_BADD_P 1060 pd->pd_d2d0_rec = UAC3_BADD_PD_RECOVER_D2D0;
1070 pd->ctrl_iface = ctrl_intf; <<
1071 1061
1072 } else { 1062 } else {
1073 fp->attributes = parse_uac_en 1063 fp->attributes = parse_uac_endpoint_attributes(chip, alts,
1074 1064 UAC_VERSION_3,
1075 1065 iface_no);
1076 1066
1077 pd = snd_usb_find_power_domai !! 1067 pd = snd_usb_find_power_domain(chip->ctrl_intf,
1078 1068 as->bTerminalLink);
1079 1069
1080 /* ok, let's parse further... 1070 /* ok, let's parse further... */
1081 if (snd_usb_parse_audio_forma 1071 if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) {
1082 kfree(pd); 1072 kfree(pd);
1083 audioformat_free(fp); 1073 audioformat_free(fp);
1084 return NULL; 1074 return NULL;
1085 } 1075 }
1086 } 1076 }
1087 1077
1088 if (pd) 1078 if (pd)
1089 *pd_out = pd; 1079 *pd_out = pd;
1090 1080
1091 return fp; 1081 return fp;
1092 } 1082 }
1093 1083
1094 static int __snd_usb_parse_audio_interface(st 1084 static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip,
1095 in 1085 int iface_no,
1096 bo 1086 bool *has_non_pcm, bool non_pcm)
1097 { 1087 {
1098 struct usb_device *dev; 1088 struct usb_device *dev;
1099 struct usb_interface *iface; 1089 struct usb_interface *iface;
1100 struct usb_host_interface *alts; 1090 struct usb_host_interface *alts;
1101 struct usb_interface_descriptor *alts 1091 struct usb_interface_descriptor *altsd;
1102 int i, altno, err, stream; 1092 int i, altno, err, stream;
1103 struct audioformat *fp = NULL; 1093 struct audioformat *fp = NULL;
1104 struct snd_usb_power_domain *pd = NUL 1094 struct snd_usb_power_domain *pd = NULL;
1105 bool set_iface_first; <<
1106 int num, protocol; 1095 int num, protocol;
1107 1096
1108 dev = chip->dev; 1097 dev = chip->dev;
1109 1098
1110 /* parse the interface's altsettings 1099 /* parse the interface's altsettings */
1111 iface = usb_ifnum_to_if(dev, iface_no 1100 iface = usb_ifnum_to_if(dev, iface_no);
1112 1101
1113 num = iface->num_altsetting; 1102 num = iface->num_altsetting;
1114 1103
1115 /* 1104 /*
1116 * Dallas DS4201 workaround: It prese 1105 * Dallas DS4201 workaround: It presents 5 altsettings, but the last
1117 * one misses syncpipe, and does not 1106 * one misses syncpipe, and does not produce any sound.
1118 */ 1107 */
1119 if (chip->usb_id == USB_ID(0x04fa, 0x !! 1108 if (chip->usb_id == USB_ID(0x04fa, 0x4201))
1120 num = 4; 1109 num = 4;
1121 1110
1122 for (i = 0; i < num; i++) { 1111 for (i = 0; i < num; i++) {
1123 alts = &iface->altsetting[i]; 1112 alts = &iface->altsetting[i];
1124 altsd = get_iface_desc(alts); 1113 altsd = get_iface_desc(alts);
1125 protocol = altsd->bInterfaceP 1114 protocol = altsd->bInterfaceProtocol;
1126 /* skip invalid one */ 1115 /* skip invalid one */
1127 if (((altsd->bInterfaceClass 1116 if (((altsd->bInterfaceClass != USB_CLASS_AUDIO ||
1128 (altsd->bInterfaceSubCl 1117 (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING &&
1129 altsd->bInterfaceSubCl 1118 altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC)) &&
1130 altsd->bInterfaceClass ! 1119 altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
1131 altsd->bNumEndpoints < 1 1120 altsd->bNumEndpoints < 1 ||
1132 le16_to_cpu(get_endpoint( 1121 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0)
1133 continue; 1122 continue;
1134 /* must be isochronous */ 1123 /* must be isochronous */
1135 if ((get_endpoint(alts, 0)->b 1124 if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1136 USB_ENDPOINT_XFER_ISOC) 1125 USB_ENDPOINT_XFER_ISOC)
1137 continue; 1126 continue;
1138 /* check direction */ 1127 /* check direction */
1139 stream = (get_endpoint(alts, 1128 stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ?
1140 SNDRV_PCM_STREAM_CAPT 1129 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
1141 altno = altsd->bAlternateSett 1130 altno = altsd->bAlternateSetting;
1142 1131
1143 if (snd_usb_apply_interface_q 1132 if (snd_usb_apply_interface_quirk(chip, iface_no, altno))
1144 continue; 1133 continue;
1145 1134
1146 /* 1135 /*
1147 * Roland audio streaming int 1136 * Roland audio streaming interfaces are marked with protocols
1148 * 0/1/2, but are UAC 1 compa 1137 * 0/1/2, but are UAC 1 compatible.
1149 */ 1138 */
1150 if (USB_ID_VENDOR(chip->usb_i 1139 if (USB_ID_VENDOR(chip->usb_id) == 0x0582 &&
1151 altsd->bInterfaceClass == 1140 altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
1152 protocol <= 2) 1141 protocol <= 2)
1153 protocol = UAC_VERSIO 1142 protocol = UAC_VERSION_1;
1154 1143
1155 switch (protocol) { 1144 switch (protocol) {
1156 default: 1145 default:
1157 dev_dbg(&dev->dev, "% 1146 dev_dbg(&dev->dev, "%u:%d: unknown interface protocol %#02x, assuming v1\n",
1158 iface_no, alt 1147 iface_no, altno, protocol);
1159 protocol = UAC_VERSIO 1148 protocol = UAC_VERSION_1;
1160 fallthrough; 1149 fallthrough;
1161 case UAC_VERSION_1: 1150 case UAC_VERSION_1:
1162 case UAC_VERSION_2: { 1151 case UAC_VERSION_2: {
1163 int bm_quirk = 0; 1152 int bm_quirk = 0;
1164 1153
1165 /* 1154 /*
1166 * Blue Microphones w 1155 * Blue Microphones workaround: The last altsetting is
1167 * identical with the 1156 * identical with the previous one, except for a larger
1168 * packet size, but i 1157 * packet size, but is actually a mislabeled two-channel
1169 * setting; ignore it 1158 * setting; ignore it.
1170 * 1159 *
1171 * Part 1: prepare qu 1160 * Part 1: prepare quirk flag
1172 */ 1161 */
1173 if (altno == 2 && num 1162 if (altno == 2 && num == 3 &&
1174 fp && fp->altsett 1163 fp && fp->altsetting == 1 && fp->channels == 1 &&
1175 fp->formats == SN 1164 fp->formats == SNDRV_PCM_FMTBIT_S16_LE &&
1176 protocol == UAC_V 1165 protocol == UAC_VERSION_1 &&
1177 le16_to_cpu(get_e 1166 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) ==
1178 1167 fp->maxpacksize * 2)
1179 bm_quirk = 1; 1168 bm_quirk = 1;
1180 1169
1181 fp = snd_usb_get_audi 1170 fp = snd_usb_get_audioformat_uac12(chip, alts, protocol,
1182 1171 iface_no, i, altno,
1183 1172 stream, bm_quirk);
1184 break; 1173 break;
1185 } 1174 }
1186 case UAC_VERSION_3: 1175 case UAC_VERSION_3:
1187 fp = snd_usb_get_audi 1176 fp = snd_usb_get_audioformat_uac3(chip, alts, &pd,
1188 1177 iface_no, i, altno, stream);
1189 break; 1178 break;
1190 } 1179 }
1191 1180
1192 if (!fp) 1181 if (!fp)
1193 continue; 1182 continue;
1194 else if (IS_ERR(fp)) 1183 else if (IS_ERR(fp))
1195 return PTR_ERR(fp); 1184 return PTR_ERR(fp);
1196 1185
1197 if (fp->fmt_type != UAC_FORMA 1186 if (fp->fmt_type != UAC_FORMAT_TYPE_I)
1198 *has_non_pcm = true; 1187 *has_non_pcm = true;
1199 if ((fp->fmt_type == UAC_FORM 1188 if ((fp->fmt_type == UAC_FORMAT_TYPE_I) == non_pcm) {
1200 audioformat_free(fp); 1189 audioformat_free(fp);
1201 kfree(pd); 1190 kfree(pd);
1202 fp = NULL; 1191 fp = NULL;
1203 pd = NULL; 1192 pd = NULL;
1204 continue; 1193 continue;
1205 } 1194 }
1206 1195
1207 snd_usb_audioformat_set_sync_ 1196 snd_usb_audioformat_set_sync_ep(chip, fp);
1208 1197
1209 dev_dbg(&dev->dev, "%u:%d: ad 1198 dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint);
1210 if (protocol == UAC_VERSION_3 1199 if (protocol == UAC_VERSION_3)
1211 err = snd_usb_add_aud 1200 err = snd_usb_add_audio_stream_v3(chip, stream, fp, pd);
1212 else 1201 else
1213 err = snd_usb_add_aud 1202 err = snd_usb_add_audio_stream(chip, stream, fp);
1214 1203
1215 if (err < 0) { 1204 if (err < 0) {
1216 audioformat_free(fp); 1205 audioformat_free(fp);
1217 kfree(pd); 1206 kfree(pd);
1218 return err; 1207 return err;
1219 } 1208 }
1220 1209
1221 /* add endpoints */ 1210 /* add endpoints */
1222 err = snd_usb_add_endpoint(ch 1211 err = snd_usb_add_endpoint(chip, fp->endpoint,
1223 SN 1212 SND_USB_ENDPOINT_TYPE_DATA);
1224 if (err < 0) 1213 if (err < 0)
1225 return err; 1214 return err;
1226 1215
1227 if (fp->sync_ep) { 1216 if (fp->sync_ep) {
1228 err = snd_usb_add_end 1217 err = snd_usb_add_endpoint(chip, fp->sync_ep,
1229 1218 fp->implicit_fb ?
1230 1219 SND_USB_ENDPOINT_TYPE_DATA :
1231 1220 SND_USB_ENDPOINT_TYPE_SYNC);
1232 if (err < 0) 1221 if (err < 0)
1233 return err; 1222 return err;
1234 } 1223 }
1235 1224
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.. 1225 /* try to set the interface... */
1242 usb_set_interface(chip->dev, 1226 usb_set_interface(chip->dev, iface_no, 0);
1243 if (set_iface_first) <<
1244 usb_set_interface(chi <<
1245 snd_usb_init_pitch(chip, fp); 1227 snd_usb_init_pitch(chip, fp);
1246 snd_usb_init_sample_rate(chip 1228 snd_usb_init_sample_rate(chip, fp, fp->rate_max);
1247 if (!set_iface_first) !! 1229 usb_set_interface(chip->dev, iface_no, altno);
1248 usb_set_interface(chi <<
1249 } 1230 }
1250 return 0; 1231 return 0;
1251 } 1232 }
1252 1233
1253 int snd_usb_parse_audio_interface(struct snd_ 1234 int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
1254 { 1235 {
1255 int err; 1236 int err;
1256 bool has_non_pcm = false; 1237 bool has_non_pcm = false;
1257 1238
1258 /* parse PCM formats */ 1239 /* parse PCM formats */
1259 err = __snd_usb_parse_audio_interface 1240 err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, false);
1260 if (err < 0) 1241 if (err < 0)
1261 return err; 1242 return err;
1262 1243
1263 if (has_non_pcm) { 1244 if (has_non_pcm) {
1264 /* parse non-PCM formats */ 1245 /* parse non-PCM formats */
1265 err = __snd_usb_parse_audio_i 1246 err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, true);
1266 if (err < 0) 1247 if (err < 0)
1267 return err; 1248 return err;
1268 } 1249 }
1269 1250
1270 return 0; 1251 return 0;
1271 } 1252 }
1272 1253
1273 1254
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