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->quirk_flags & QUIRK_FLAG_ALIGN_TRANSFER);
93 subs->tx_length_quirk = !!(as->chip->q 93 subs->tx_length_quirk = !!(as->chip->quirk_flags & QUIRK_FLAG_TX_LENGTH);
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_RL, /* left surround */
248 SNDRV_CHMAP_RR, /* rig 248 SNDRV_CHMAP_RR, /* 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 306 if (c == chmap->channels)
307 break; 307 break;
308 } 308 }
309 } else { 309 } else {
310 /* If we're missing wChannelCo 310 /* If we're missing wChannelConfig, then guess something
311 to make sure the channel m 311 to make sure the channel map is not skipped entirely */
312 if (channels == 1) 312 if (channels == 1)
313 chmap->map[c++] = SNDR 313 chmap->map[c++] = SNDRV_CHMAP_MONO;
314 else 314 else
315 for (; c < channels && 315 for (; c < channels && *maps; maps++)
316 chmap->map[c++ 316 chmap->map[c++] = *maps;
317 } 317 }
318 318
319 for (; c < channels; c++) 319 for (; c < channels; c++)
320 chmap->map[c] = SNDRV_CHMAP_UN 320 chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
321 321
322 return chmap; 322 return chmap;
323 } 323 }
324 324
325 /* UAC3 device stores channels information in 325 /* UAC3 device stores channels information in Cluster Descriptors */
326 static struct 326 static struct
327 snd_pcm_chmap_elem *convert_chmap_v3(struct ua 327 snd_pcm_chmap_elem *convert_chmap_v3(struct uac3_cluster_header_descriptor
328 328 *cluster)
329 { 329 {
330 unsigned int channels = cluster->bNrCh 330 unsigned int channels = cluster->bNrChannels;
331 struct snd_pcm_chmap_elem *chmap; 331 struct snd_pcm_chmap_elem *chmap;
332 void *p = cluster; 332 void *p = cluster;
333 int len, c; 333 int len, c;
334 334
335 if (channels > ARRAY_SIZE(chmap->map)) 335 if (channels > ARRAY_SIZE(chmap->map))
336 return NULL; 336 return NULL;
337 337
338 chmap = kzalloc(sizeof(*chmap), GFP_KE 338 chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
339 if (!chmap) 339 if (!chmap)
340 return NULL; 340 return NULL;
341 341
342 len = le16_to_cpu(cluster->wLength); 342 len = le16_to_cpu(cluster->wLength);
343 c = 0; 343 c = 0;
344 p += sizeof(struct uac3_cluster_header 344 p += sizeof(struct uac3_cluster_header_descriptor);
345 345
346 while (((p - (void *)cluster) < len) & 346 while (((p - (void *)cluster) < len) && (c < channels)) {
347 struct uac3_cluster_segment_de 347 struct uac3_cluster_segment_descriptor *cs_desc = p;
348 u16 cs_len; 348 u16 cs_len;
349 u8 cs_type; 349 u8 cs_type;
350 350
351 cs_len = le16_to_cpu(cs_desc-> 351 cs_len = le16_to_cpu(cs_desc->wLength);
352 cs_type = cs_desc->bSegmentTyp 352 cs_type = cs_desc->bSegmentType;
353 353
354 if (cs_type == UAC3_CHANNEL_IN 354 if (cs_type == UAC3_CHANNEL_INFORMATION) {
355 struct uac3_cluster_in 355 struct uac3_cluster_information_segment_descriptor *is = p;
356 unsigned char map; 356 unsigned char map;
357 357
358 /* 358 /*
359 * TODO: this conversi 359 * TODO: this conversion is not complete, update it
360 * after adding UAC3 v 360 * after adding UAC3 values to asound.h
361 */ 361 */
362 switch (is->bChRelatio 362 switch (is->bChRelationship) {
363 case UAC3_CH_MONO: 363 case UAC3_CH_MONO:
364 map = SNDRV_CH 364 map = SNDRV_CHMAP_MONO;
365 break; 365 break;
366 case UAC3_CH_LEFT: 366 case UAC3_CH_LEFT:
367 case UAC3_CH_FRONT_LEF 367 case UAC3_CH_FRONT_LEFT:
368 case UAC3_CH_HEADPHONE 368 case UAC3_CH_HEADPHONE_LEFT:
369 map = SNDRV_CH 369 map = SNDRV_CHMAP_FL;
370 break; 370 break;
371 case UAC3_CH_RIGHT: 371 case UAC3_CH_RIGHT:
372 case UAC3_CH_FRONT_RIG 372 case UAC3_CH_FRONT_RIGHT:
373 case UAC3_CH_HEADPHONE 373 case UAC3_CH_HEADPHONE_RIGHT:
374 map = SNDRV_CH 374 map = SNDRV_CHMAP_FR;
375 break; 375 break;
376 case UAC3_CH_FRONT_CEN 376 case UAC3_CH_FRONT_CENTER:
377 map = SNDRV_CH 377 map = SNDRV_CHMAP_FC;
378 break; 378 break;
379 case UAC3_CH_FRONT_LEF 379 case UAC3_CH_FRONT_LEFT_OF_CENTER:
380 map = SNDRV_CH 380 map = SNDRV_CHMAP_FLC;
381 break; 381 break;
382 case UAC3_CH_FRONT_RIG 382 case UAC3_CH_FRONT_RIGHT_OF_CENTER:
383 map = SNDRV_CH 383 map = SNDRV_CHMAP_FRC;
384 break; 384 break;
385 case UAC3_CH_SIDE_LEFT 385 case UAC3_CH_SIDE_LEFT:
386 map = SNDRV_CH 386 map = SNDRV_CHMAP_SL;
387 break; 387 break;
388 case UAC3_CH_SIDE_RIGH 388 case UAC3_CH_SIDE_RIGHT:
389 map = SNDRV_CH 389 map = SNDRV_CHMAP_SR;
390 break; 390 break;
391 case UAC3_CH_BACK_LEFT 391 case UAC3_CH_BACK_LEFT:
392 map = SNDRV_CH 392 map = SNDRV_CHMAP_RL;
393 break; 393 break;
394 case UAC3_CH_BACK_RIGH 394 case UAC3_CH_BACK_RIGHT:
395 map = SNDRV_CH 395 map = SNDRV_CHMAP_RR;
396 break; 396 break;
397 case UAC3_CH_BACK_CENT 397 case UAC3_CH_BACK_CENTER:
398 map = SNDRV_CH 398 map = SNDRV_CHMAP_RC;
399 break; 399 break;
400 case UAC3_CH_BACK_LEFT 400 case UAC3_CH_BACK_LEFT_OF_CENTER:
401 map = SNDRV_CH 401 map = SNDRV_CHMAP_RLC;
402 break; 402 break;
403 case UAC3_CH_BACK_RIGH 403 case UAC3_CH_BACK_RIGHT_OF_CENTER:
404 map = SNDRV_CH 404 map = SNDRV_CHMAP_RRC;
405 break; 405 break;
406 case UAC3_CH_TOP_CENTE 406 case UAC3_CH_TOP_CENTER:
407 map = SNDRV_CH 407 map = SNDRV_CHMAP_TC;
408 break; 408 break;
409 case UAC3_CH_TOP_FRONT 409 case UAC3_CH_TOP_FRONT_LEFT:
410 map = SNDRV_CH 410 map = SNDRV_CHMAP_TFL;
411 break; 411 break;
412 case UAC3_CH_TOP_FRONT 412 case UAC3_CH_TOP_FRONT_RIGHT:
413 map = SNDRV_CH 413 map = SNDRV_CHMAP_TFR;
414 break; 414 break;
415 case UAC3_CH_TOP_FRONT 415 case UAC3_CH_TOP_FRONT_CENTER:
416 map = SNDRV_CH 416 map = SNDRV_CHMAP_TFC;
417 break; 417 break;
418 case UAC3_CH_TOP_FRONT 418 case UAC3_CH_TOP_FRONT_LOC:
419 map = SNDRV_CH 419 map = SNDRV_CHMAP_TFLC;
420 break; 420 break;
421 case UAC3_CH_TOP_FRONT 421 case UAC3_CH_TOP_FRONT_ROC:
422 map = SNDRV_CH 422 map = SNDRV_CHMAP_TFRC;
423 break; 423 break;
424 case UAC3_CH_TOP_SIDE_ 424 case UAC3_CH_TOP_SIDE_LEFT:
425 map = SNDRV_CH 425 map = SNDRV_CHMAP_TSL;
426 break; 426 break;
427 case UAC3_CH_TOP_SIDE_ 427 case UAC3_CH_TOP_SIDE_RIGHT:
428 map = SNDRV_CH 428 map = SNDRV_CHMAP_TSR;
429 break; 429 break;
430 case UAC3_CH_TOP_BACK_ 430 case UAC3_CH_TOP_BACK_LEFT:
431 map = SNDRV_CH 431 map = SNDRV_CHMAP_TRL;
432 break; 432 break;
433 case UAC3_CH_TOP_BACK_ 433 case UAC3_CH_TOP_BACK_RIGHT:
434 map = SNDRV_CH 434 map = SNDRV_CHMAP_TRR;
435 break; 435 break;
436 case UAC3_CH_TOP_BACK_ 436 case UAC3_CH_TOP_BACK_CENTER:
437 map = SNDRV_CH 437 map = SNDRV_CHMAP_TRC;
438 break; 438 break;
439 case UAC3_CH_BOTTOM_CE 439 case UAC3_CH_BOTTOM_CENTER:
440 map = SNDRV_CH 440 map = SNDRV_CHMAP_BC;
441 break; 441 break;
442 case UAC3_CH_LOW_FREQU 442 case UAC3_CH_LOW_FREQUENCY_EFFECTS:
443 map = SNDRV_CH 443 map = SNDRV_CHMAP_LFE;
444 break; 444 break;
445 case UAC3_CH_LFE_LEFT: 445 case UAC3_CH_LFE_LEFT:
446 map = SNDRV_CH 446 map = SNDRV_CHMAP_LLFE;
447 break; 447 break;
448 case UAC3_CH_LFE_RIGHT 448 case UAC3_CH_LFE_RIGHT:
449 map = SNDRV_CH 449 map = SNDRV_CHMAP_RLFE;
450 break; 450 break;
451 case UAC3_CH_RELATIONS 451 case UAC3_CH_RELATIONSHIP_UNDEFINED:
452 default: 452 default:
453 map = SNDRV_CH 453 map = SNDRV_CHMAP_UNKNOWN;
454 break; 454 break;
455 } 455 }
456 chmap->map[c++] = map; 456 chmap->map[c++] = map;
457 } 457 }
458 p += cs_len; 458 p += cs_len;
459 } 459 }
460 460
461 if (channels < c) 461 if (channels < c)
462 pr_err("%s: channel number mis 462 pr_err("%s: channel number mismatch\n", __func__);
463 463
464 chmap->channels = channels; 464 chmap->channels = channels;
465 465
466 for (; c < channels; c++) 466 for (; c < channels; c++)
467 chmap->map[c] = SNDRV_CHMAP_UN 467 chmap->map[c] = SNDRV_CHMAP_UNKNOWN;
468 468
469 return chmap; 469 return chmap;
470 } 470 }
471 471
472 /* 472 /*
473 * add this endpoint to the chip instance. 473 * add this endpoint to the chip instance.
474 * if a stream with the same endpoint already 474 * if a stream with the same endpoint already exists, append to it.
475 * if not, create a new pcm stream. note, fp i 475 * 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 476 * 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 477 * fp or do remove it from the substream fmt_list to avoid double-free.
478 */ 478 */
479 static int __snd_usb_add_audio_stream(struct s 479 static int __snd_usb_add_audio_stream(struct snd_usb_audio *chip,
480 int stre 480 int stream,
481 struct a 481 struct audioformat *fp,
482 struct s 482 struct snd_usb_power_domain *pd)
483 483
484 { 484 {
485 struct snd_usb_stream *as; 485 struct snd_usb_stream *as;
486 struct snd_usb_substream *subs; 486 struct snd_usb_substream *subs;
487 struct snd_pcm *pcm; 487 struct snd_pcm *pcm;
488 int err; 488 int err;
489 489
490 list_for_each_entry(as, &chip->pcm_lis 490 list_for_each_entry(as, &chip->pcm_list, list) {
491 if (as->fmt_type != fp->fmt_ty 491 if (as->fmt_type != fp->fmt_type)
492 continue; 492 continue;
493 subs = &as->substream[stream]; 493 subs = &as->substream[stream];
494 if (subs->ep_num == fp->endpoi 494 if (subs->ep_num == fp->endpoint) {
495 list_add_tail(&fp->lis 495 list_add_tail(&fp->list, &subs->fmt_list);
496 subs->num_formats++; 496 subs->num_formats++;
497 subs->formats |= fp->f 497 subs->formats |= fp->formats;
498 return 0; 498 return 0;
499 } 499 }
500 } 500 }
501 501
502 if (chip->card->registered) 502 if (chip->card->registered)
503 chip->need_delayed_register = 503 chip->need_delayed_register = true;
504 504
505 /* look for an empty stream */ 505 /* look for an empty stream */
506 list_for_each_entry(as, &chip->pcm_lis 506 list_for_each_entry(as, &chip->pcm_list, list) {
507 if (as->fmt_type != fp->fmt_ty 507 if (as->fmt_type != fp->fmt_type)
508 continue; 508 continue;
509 subs = &as->substream[stream]; 509 subs = &as->substream[stream];
510 if (subs->ep_num) 510 if (subs->ep_num)
511 continue; 511 continue;
512 err = snd_pcm_new_stream(as->p 512 err = snd_pcm_new_stream(as->pcm, stream, 1);
513 if (err < 0) 513 if (err < 0)
514 return err; 514 return err;
515 snd_usb_init_substream(as, str 515 snd_usb_init_substream(as, stream, fp, pd);
516 return add_chmap(as->pcm, stre 516 return add_chmap(as->pcm, stream, subs);
517 } 517 }
518 518
519 /* create a new pcm */ 519 /* create a new pcm */
520 as = kzalloc(sizeof(*as), GFP_KERNEL); 520 as = kzalloc(sizeof(*as), GFP_KERNEL);
521 if (!as) 521 if (!as)
522 return -ENOMEM; 522 return -ENOMEM;
523 as->pcm_index = chip->pcm_devs; 523 as->pcm_index = chip->pcm_devs;
524 as->chip = chip; 524 as->chip = chip;
525 as->fmt_type = fp->fmt_type; 525 as->fmt_type = fp->fmt_type;
526 err = snd_pcm_new(chip->card, "USB Aud 526 err = snd_pcm_new(chip->card, "USB Audio", chip->pcm_devs,
527 stream == SNDRV_PCM_ 527 stream == SNDRV_PCM_STREAM_PLAYBACK ? 1 : 0,
528 stream == SNDRV_PCM_ 528 stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1,
529 &pcm); 529 &pcm);
530 if (err < 0) { 530 if (err < 0) {
531 kfree(as); 531 kfree(as);
532 return err; 532 return err;
533 } 533 }
534 as->pcm = pcm; 534 as->pcm = pcm;
535 pcm->private_data = as; 535 pcm->private_data = as;
536 pcm->private_free = snd_usb_audio_pcm_ 536 pcm->private_free = snd_usb_audio_pcm_free;
537 pcm->info_flags = 0; 537 pcm->info_flags = 0;
538 if (chip->pcm_devs > 0) 538 if (chip->pcm_devs > 0)
539 sprintf(pcm->name, "USB Audio 539 sprintf(pcm->name, "USB Audio #%d", chip->pcm_devs);
540 else 540 else
541 strcpy(pcm->name, "USB Audio") 541 strcpy(pcm->name, "USB Audio");
542 542
543 snd_usb_init_substream(as, stream, fp, 543 snd_usb_init_substream(as, stream, fp, pd);
544 544
545 /* 545 /*
546 * Keep using head insertion for M-Aud 546 * Keep using head insertion for M-Audio Audiophile USB (tm) which has a
547 * fix to swap capture stream order in 547 * fix to swap capture stream order in conf/cards/USB-audio.conf
548 */ 548 */
549 if (chip->usb_id == USB_ID(0x0763, 0x2 549 if (chip->usb_id == USB_ID(0x0763, 0x2003))
550 list_add(&as->list, &chip->pcm 550 list_add(&as->list, &chip->pcm_list);
551 else 551 else
552 list_add_tail(&as->list, &chip 552 list_add_tail(&as->list, &chip->pcm_list);
553 553
554 chip->pcm_devs++; 554 chip->pcm_devs++;
555 555
556 snd_usb_proc_pcm_format_add(as); 556 snd_usb_proc_pcm_format_add(as);
557 557
558 return add_chmap(pcm, stream, &as->sub 558 return add_chmap(pcm, stream, &as->substream[stream]);
559 } 559 }
560 560
561 int snd_usb_add_audio_stream(struct snd_usb_au 561 int snd_usb_add_audio_stream(struct snd_usb_audio *chip,
562 int stream, 562 int stream,
563 struct audioforma 563 struct audioformat *fp)
564 { 564 {
565 return __snd_usb_add_audio_stream(chip 565 return __snd_usb_add_audio_stream(chip, stream, fp, NULL);
566 } 566 }
567 567
568 static int snd_usb_add_audio_stream_v3(struct 568 static int snd_usb_add_audio_stream_v3(struct snd_usb_audio *chip,
569 int str 569 int stream,
570 struct 570 struct audioformat *fp,
571 struct 571 struct snd_usb_power_domain *pd)
572 { 572 {
573 return __snd_usb_add_audio_stream(chip 573 return __snd_usb_add_audio_stream(chip, stream, fp, pd);
574 } 574 }
575 575
576 static int parse_uac_endpoint_attributes(struc 576 static int parse_uac_endpoint_attributes(struct snd_usb_audio *chip,
577 struc 577 struct usb_host_interface *alts,
578 int p 578 int protocol, int iface_no)
579 { 579 {
580 /* parsed with a v1 header here. that' 580 /* parsed with a v1 header here. that's ok as we only look at the
581 * header first which is the same for 581 * header first which is the same for both versions */
582 struct uac_iso_endpoint_descriptor *cs 582 struct uac_iso_endpoint_descriptor *csep;
583 struct usb_interface_descriptor *altsd 583 struct usb_interface_descriptor *altsd = get_iface_desc(alts);
584 int attributes = 0; 584 int attributes = 0;
585 585
586 csep = snd_usb_find_desc(alts->endpoin 586 csep = snd_usb_find_desc(alts->endpoint[0].extra, alts->endpoint[0].extralen, NULL, USB_DT_CS_ENDPOINT);
587 587
588 /* Creamware Noah has this descriptor 588 /* Creamware Noah has this descriptor after the 2nd endpoint */
589 if (!csep && altsd->bNumEndpoints >= 2 589 if (!csep && altsd->bNumEndpoints >= 2)
590 csep = snd_usb_find_desc(alts- 590 csep = snd_usb_find_desc(alts->endpoint[1].extra, alts->endpoint[1].extralen, NULL, USB_DT_CS_ENDPOINT);
591 591
592 /* 592 /*
593 * If we can't locate the USB_DT_CS_EN 593 * If we can't locate the USB_DT_CS_ENDPOINT descriptor in the extra
594 * bytes after the first endpoint, go 594 * bytes after the first endpoint, go search the entire interface.
595 * Some devices have it directly *befo 595 * Some devices have it directly *before* the standard endpoint.
596 */ 596 */
597 if (!csep) 597 if (!csep)
598 csep = snd_usb_find_desc(alts- 598 csep = snd_usb_find_desc(alts->extra, alts->extralen, NULL, USB_DT_CS_ENDPOINT);
599 599
600 if (!csep || csep->bLength < 7 || 600 if (!csep || csep->bLength < 7 ||
601 csep->bDescriptorSubtype != UAC_EP 601 csep->bDescriptorSubtype != UAC_EP_GENERAL)
602 goto error; 602 goto error;
603 603
604 if (protocol == UAC_VERSION_1) { 604 if (protocol == UAC_VERSION_1) {
605 attributes = csep->bmAttribute 605 attributes = csep->bmAttributes;
606 } else if (protocol == UAC_VERSION_2) 606 } else if (protocol == UAC_VERSION_2) {
607 struct uac2_iso_endpoint_descr 607 struct uac2_iso_endpoint_descriptor *csep2 =
608 (struct uac2_iso_endpo 608 (struct uac2_iso_endpoint_descriptor *) csep;
609 609
610 if (csep2->bLength < sizeof(*c 610 if (csep2->bLength < sizeof(*csep2))
611 goto error; 611 goto error;
612 attributes = csep->bmAttribute 612 attributes = csep->bmAttributes & UAC_EP_CS_ATTR_FILL_MAX;
613 613
614 /* emulate the endpoint attrib 614 /* emulate the endpoint attributes of a v1 device */
615 if (csep2->bmControls & UAC2_C 615 if (csep2->bmControls & UAC2_CONTROL_PITCH)
616 attributes |= UAC_EP_C 616 attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
617 } else { /* UAC_VERSION_3 */ 617 } else { /* UAC_VERSION_3 */
618 struct uac3_iso_endpoint_descr 618 struct uac3_iso_endpoint_descriptor *csep3 =
619 (struct uac3_iso_endpo 619 (struct uac3_iso_endpoint_descriptor *) csep;
620 620
621 if (csep3->bLength < sizeof(*c 621 if (csep3->bLength < sizeof(*csep3))
622 goto error; 622 goto error;
623 /* emulate the endpoint attrib 623 /* emulate the endpoint attributes of a v1 device */
624 if (le32_to_cpu(csep3->bmContr 624 if (le32_to_cpu(csep3->bmControls) & UAC2_CONTROL_PITCH)
625 attributes |= UAC_EP_C 625 attributes |= UAC_EP_CS_ATTR_PITCH_CONTROL;
626 } 626 }
627 627
628 return attributes; 628 return attributes;
629 629
630 error: 630 error:
631 usb_audio_warn(chip, 631 usb_audio_warn(chip,
632 "%u:%d : no or invalid 632 "%u:%d : no or invalid class specific endpoint descriptor\n",
633 iface_no, altsd->bAlter 633 iface_no, altsd->bAlternateSetting);
634 return 0; 634 return 0;
635 } 635 }
636 636
637 /* find an input terminal descriptor (either U 637 /* find an input terminal descriptor (either UAC1 or UAC2) with the given
638 * terminal id 638 * terminal id
639 */ 639 */
640 static void * 640 static void *
641 snd_usb_find_input_terminal_descriptor(struct 641 snd_usb_find_input_terminal_descriptor(struct usb_host_interface *ctrl_iface,
642 int ter 642 int terminal_id, int protocol)
643 { 643 {
644 struct uac2_input_terminal_descriptor 644 struct uac2_input_terminal_descriptor *term = NULL;
645 645
646 while ((term = snd_usb_find_csint_desc 646 while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
647 647 ctrl_iface->extralen,
648 648 term, UAC_INPUT_TERMINAL))) {
649 if (!snd_usb_validate_audio_de 649 if (!snd_usb_validate_audio_desc(term, protocol))
650 continue; 650 continue;
651 if (term->bTerminalID == termi 651 if (term->bTerminalID == terminal_id)
652 return term; 652 return term;
653 } 653 }
654 654
655 return NULL; 655 return NULL;
656 } 656 }
657 657
658 static void * 658 static void *
659 snd_usb_find_output_terminal_descriptor(struct 659 snd_usb_find_output_terminal_descriptor(struct usb_host_interface *ctrl_iface,
660 int te 660 int terminal_id, int protocol)
661 { 661 {
662 /* OK to use with both UAC2 and UAC3 * 662 /* OK to use with both UAC2 and UAC3 */
663 struct uac2_output_terminal_descriptor 663 struct uac2_output_terminal_descriptor *term = NULL;
664 664
665 while ((term = snd_usb_find_csint_desc 665 while ((term = snd_usb_find_csint_desc(ctrl_iface->extra,
666 666 ctrl_iface->extralen,
667 667 term, UAC_OUTPUT_TERMINAL))) {
668 if (!snd_usb_validate_audio_de 668 if (!snd_usb_validate_audio_desc(term, protocol))
669 continue; 669 continue;
670 if (term->bTerminalID == termi 670 if (term->bTerminalID == terminal_id)
671 return term; 671 return term;
672 } 672 }
673 673
674 return NULL; 674 return NULL;
675 } 675 }
676 676
677 static struct audioformat * 677 static struct audioformat *
678 audio_format_alloc_init(struct snd_usb_audio * 678 audio_format_alloc_init(struct snd_usb_audio *chip,
679 struct usb_host_interfa 679 struct usb_host_interface *alts,
680 int protocol, int iface 680 int protocol, int iface_no, int altset_idx,
681 int altno, int num_chan 681 int altno, int num_channels, int clock)
682 { 682 {
683 struct audioformat *fp; 683 struct audioformat *fp;
684 684
685 fp = kzalloc(sizeof(*fp), GFP_KERNEL); 685 fp = kzalloc(sizeof(*fp), GFP_KERNEL);
686 if (!fp) 686 if (!fp)
687 return NULL; 687 return NULL;
688 688
689 fp->iface = iface_no; 689 fp->iface = iface_no;
690 fp->altsetting = altno; 690 fp->altsetting = altno;
691 fp->altset_idx = altset_idx; 691 fp->altset_idx = altset_idx;
692 fp->endpoint = get_endpoint(alts, 0)-> 692 fp->endpoint = get_endpoint(alts, 0)->bEndpointAddress;
693 fp->ep_attr = get_endpoint(alts, 0)->b 693 fp->ep_attr = get_endpoint(alts, 0)->bmAttributes;
694 fp->datainterval = snd_usb_parse_datai 694 fp->datainterval = snd_usb_parse_datainterval(chip, alts);
695 fp->protocol = protocol; 695 fp->protocol = protocol;
696 fp->maxpacksize = le16_to_cpu(get_endp 696 fp->maxpacksize = le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
697 fp->channels = num_channels; 697 fp->channels = num_channels;
698 if (snd_usb_get_speed(chip->dev) == US 698 if (snd_usb_get_speed(chip->dev) == USB_SPEED_HIGH)
699 fp->maxpacksize = (((fp->maxpa 699 fp->maxpacksize = (((fp->maxpacksize >> 11) & 3) + 1)
700 * (fp->maxpack 700 * (fp->maxpacksize & 0x7ff);
701 fp->clock = clock; 701 fp->clock = clock;
702 INIT_LIST_HEAD(&fp->list); 702 INIT_LIST_HEAD(&fp->list);
703 703
704 return fp; 704 return fp;
705 } 705 }
706 706
707 static struct audioformat * 707 static struct audioformat *
708 snd_usb_get_audioformat_uac12(struct snd_usb_a 708 snd_usb_get_audioformat_uac12(struct snd_usb_audio *chip,
709 struct usb_host_ 709 struct usb_host_interface *alts,
710 int protocol, in 710 int protocol, int iface_no, int altset_idx,
711 int altno, int s 711 int altno, int stream, int bm_quirk)
712 { 712 {
713 struct usb_device *dev = chip->dev; 713 struct usb_device *dev = chip->dev;
714 struct uac_format_type_i_continuous_de 714 struct uac_format_type_i_continuous_descriptor *fmt;
715 unsigned int num_channels = 0, chconfi 715 unsigned int num_channels = 0, chconfig = 0;
716 struct usb_host_interface *ctrl_intf; 716 struct usb_host_interface *ctrl_intf;
717 struct audioformat *fp; 717 struct audioformat *fp;
718 int clock = 0; 718 int clock = 0;
719 u64 format; 719 u64 format;
720 720
721 ctrl_intf = snd_usb_find_ctrl_interfac 721 ctrl_intf = snd_usb_find_ctrl_interface(chip, iface_no);
722 722
723 /* get audio formats */ 723 /* get audio formats */
724 if (protocol == UAC_VERSION_1) { 724 if (protocol == UAC_VERSION_1) {
725 struct uac1_as_header_descript 725 struct uac1_as_header_descriptor *as =
726 snd_usb_find_csint_des 726 snd_usb_find_csint_desc(alts->extra, alts->extralen,
727 727 NULL, UAC_AS_GENERAL);
728 struct uac_input_terminal_desc 728 struct uac_input_terminal_descriptor *iterm;
729 729
730 if (!as) { 730 if (!as) {
731 dev_err(&dev->dev, 731 dev_err(&dev->dev,
732 "%u:%d : UAC_A 732 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
733 iface_no, altn 733 iface_no, altno);
734 return NULL; 734 return NULL;
735 } 735 }
736 736
737 if (as->bLength < sizeof(*as)) 737 if (as->bLength < sizeof(*as)) {
738 dev_err(&dev->dev, 738 dev_err(&dev->dev,
739 "%u:%d : inval 739 "%u:%d : invalid UAC_AS_GENERAL desc\n",
740 iface_no, altn 740 iface_no, altno);
741 return NULL; 741 return NULL;
742 } 742 }
743 743
744 format = le16_to_cpu(as->wForm 744 format = le16_to_cpu(as->wFormatTag); /* remember the format value */
745 745
746 iterm = snd_usb_find_input_ter 746 iterm = snd_usb_find_input_terminal_descriptor(ctrl_intf,
747 747 as->bTerminalLink,
748 748 protocol);
749 if (iterm) { 749 if (iterm) {
750 num_channels = iterm-> 750 num_channels = iterm->bNrChannels;
751 chconfig = le16_to_cpu 751 chconfig = le16_to_cpu(iterm->wChannelConfig);
752 } 752 }
753 } else { /* UAC_VERSION_2 */ 753 } else { /* UAC_VERSION_2 */
754 struct uac2_input_terminal_des 754 struct uac2_input_terminal_descriptor *input_term;
755 struct uac2_output_terminal_de 755 struct uac2_output_terminal_descriptor *output_term;
756 struct uac2_as_header_descript 756 struct uac2_as_header_descriptor *as =
757 snd_usb_find_csint_des 757 snd_usb_find_csint_desc(alts->extra, alts->extralen,
758 758 NULL, UAC_AS_GENERAL);
759 759
760 if (!as) { 760 if (!as) {
761 dev_err(&dev->dev, 761 dev_err(&dev->dev,
762 "%u:%d : UAC_A 762 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
763 iface_no, altn 763 iface_no, altno);
764 return NULL; 764 return NULL;
765 } 765 }
766 766
767 if (as->bLength < sizeof(*as)) 767 if (as->bLength < sizeof(*as)) {
768 dev_err(&dev->dev, 768 dev_err(&dev->dev,
769 "%u:%d : inval 769 "%u:%d : invalid UAC_AS_GENERAL desc\n",
770 iface_no, altn 770 iface_no, altno);
771 return NULL; 771 return NULL;
772 } 772 }
773 773
774 num_channels = as->bNrChannels 774 num_channels = as->bNrChannels;
775 format = le32_to_cpu(as->bmFor 775 format = le32_to_cpu(as->bmFormats);
776 chconfig = le32_to_cpu(as->bmC 776 chconfig = le32_to_cpu(as->bmChannelConfig);
777 777
778 /* 778 /*
779 * lookup the terminal associa 779 * lookup the terminal associated to this interface
780 * to extract the clock 780 * to extract the clock
781 */ 781 */
782 input_term = snd_usb_find_inpu 782 input_term = snd_usb_find_input_terminal_descriptor(ctrl_intf,
783 783 as->bTerminalLink,
784 784 protocol);
785 if (input_term) { 785 if (input_term) {
786 clock = input_term->bC 786 clock = input_term->bCSourceID;
787 if (!chconfig && (num_ 787 if (!chconfig && (num_channels == input_term->bNrChannels))
788 chconfig = le3 788 chconfig = le32_to_cpu(input_term->bmChannelConfig);
789 goto found_clock; 789 goto found_clock;
790 } 790 }
791 791
792 output_term = snd_usb_find_out 792 output_term = snd_usb_find_output_terminal_descriptor(ctrl_intf,
793 793 as->bTerminalLink,
794 794 protocol);
795 if (output_term) { 795 if (output_term) {
796 clock = output_term->b 796 clock = output_term->bCSourceID;
797 goto found_clock; 797 goto found_clock;
798 } 798 }
799 799
800 dev_err(&dev->dev, 800 dev_err(&dev->dev,
801 "%u:%d : bogus bTermin 801 "%u:%d : bogus bTerminalLink %d\n",
802 iface_no, altno, as->b 802 iface_no, altno, as->bTerminalLink);
803 return NULL; 803 return NULL;
804 } 804 }
805 805
806 found_clock: 806 found_clock:
807 /* get format type */ 807 /* get format type */
808 fmt = snd_usb_find_csint_desc(alts->ex 808 fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen,
809 NULL, UA 809 NULL, UAC_FORMAT_TYPE);
810 if (!fmt) { 810 if (!fmt) {
811 dev_err(&dev->dev, 811 dev_err(&dev->dev,
812 "%u:%d : no UAC_FORMAT 812 "%u:%d : no UAC_FORMAT_TYPE desc\n",
813 iface_no, altno); 813 iface_no, altno);
814 return NULL; 814 return NULL;
815 } 815 }
816 if (((protocol == UAC_VERSION_1) && (f 816 if (((protocol == UAC_VERSION_1) && (fmt->bLength < 8))
817 || ((protocol == UAC_V 817 || ((protocol == UAC_VERSION_2) &&
818 (fmt-> 818 (fmt->bLength < 6))) {
819 dev_err(&dev->dev, 819 dev_err(&dev->dev,
820 "%u:%d : invalid UAC_F 820 "%u:%d : invalid UAC_FORMAT_TYPE desc\n",
821 iface_no, altno); 821 iface_no, altno);
822 return NULL; 822 return NULL;
823 } 823 }
824 824
825 /* 825 /*
826 * Blue Microphones workaround: The la 826 * Blue Microphones workaround: The last altsetting is
827 * identical with the previous one, ex 827 * identical with the previous one, except for a larger
828 * packet size, but is actually a misl 828 * packet size, but is actually a mislabeled two-channel
829 * setting; ignore it. 829 * setting; ignore it.
830 * 830 *
831 * Part 2: analyze quirk flag and form 831 * Part 2: analyze quirk flag and format
832 */ 832 */
833 if (bm_quirk && fmt->bNrChannels == 1 833 if (bm_quirk && fmt->bNrChannels == 1 && fmt->bSubframeSize == 2)
834 return NULL; 834 return NULL;
835 835
836 fp = audio_format_alloc_init(chip, alt 836 fp = audio_format_alloc_init(chip, alts, protocol, iface_no,
837 altset_id 837 altset_idx, altno, num_channels, clock);
838 if (!fp) 838 if (!fp)
839 return ERR_PTR(-ENOMEM); 839 return ERR_PTR(-ENOMEM);
840 840
841 fp->attributes = parse_uac_endpoint_at 841 fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol,
842 842 iface_no);
843 843
844 /* some quirks for attributes here */ 844 /* some quirks for attributes here */
845 snd_usb_audioformat_attributes_quirk(c 845 snd_usb_audioformat_attributes_quirk(chip, fp, stream);
846 846
847 /* ok, let's parse further... */ 847 /* ok, let's parse further... */
848 if (snd_usb_parse_audio_format(chip, f 848 if (snd_usb_parse_audio_format(chip, fp, format,
849 fmt, s 849 fmt, stream) < 0) {
850 audioformat_free(fp); 850 audioformat_free(fp);
851 return NULL; 851 return NULL;
852 } 852 }
853 853
854 /* Create chmap */ 854 /* Create chmap */
855 if (fp->channels != num_channels) 855 if (fp->channels != num_channels)
856 chconfig = 0; 856 chconfig = 0;
857 857
858 fp->chmap = convert_chmap(fp->channels 858 fp->chmap = convert_chmap(fp->channels, chconfig, protocol);
859 859
860 return fp; 860 return fp;
861 } 861 }
862 862
863 static struct audioformat * 863 static struct audioformat *
864 snd_usb_get_audioformat_uac3(struct snd_usb_au 864 snd_usb_get_audioformat_uac3(struct snd_usb_audio *chip,
865 struct usb_host_i 865 struct usb_host_interface *alts,
866 struct snd_usb_po 866 struct snd_usb_power_domain **pd_out,
867 int iface_no, int 867 int iface_no, int altset_idx,
868 int altno, int st 868 int altno, int stream)
869 { 869 {
870 struct usb_device *dev = chip->dev; 870 struct usb_device *dev = chip->dev;
871 struct uac3_input_terminal_descriptor 871 struct uac3_input_terminal_descriptor *input_term;
872 struct uac3_output_terminal_descriptor 872 struct uac3_output_terminal_descriptor *output_term;
873 struct uac3_cluster_header_descriptor 873 struct uac3_cluster_header_descriptor *cluster;
874 struct uac3_as_header_descriptor *as = 874 struct uac3_as_header_descriptor *as = NULL;
875 struct uac3_hc_descriptor_header hc_he 875 struct uac3_hc_descriptor_header hc_header;
876 struct usb_host_interface *ctrl_intf; 876 struct usb_host_interface *ctrl_intf;
877 struct snd_pcm_chmap_elem *chmap; 877 struct snd_pcm_chmap_elem *chmap;
878 struct snd_usb_power_domain *pd; 878 struct snd_usb_power_domain *pd;
879 unsigned char badd_profile; 879 unsigned char badd_profile;
880 u64 badd_formats = 0; 880 u64 badd_formats = 0;
881 unsigned int num_channels; 881 unsigned int num_channels;
882 struct audioformat *fp; 882 struct audioformat *fp;
883 u16 cluster_id, wLength; 883 u16 cluster_id, wLength;
884 int clock = 0; 884 int clock = 0;
885 int err; 885 int err;
886 886
887 badd_profile = chip->badd_profile; 887 badd_profile = chip->badd_profile;
888 ctrl_intf = snd_usb_find_ctrl_interfac 888 ctrl_intf = snd_usb_find_ctrl_interface(chip, iface_no);
889 889
890 if (badd_profile >= UAC3_FUNCTION_SUBC 890 if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
891 unsigned int maxpacksize = 891 unsigned int maxpacksize =
892 le16_to_cpu(get_endpoi 892 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize);
893 893
894 switch (maxpacksize) { 894 switch (maxpacksize) {
895 default: 895 default:
896 dev_err(&dev->dev, 896 dev_err(&dev->dev,
897 "%u:%d : incor 897 "%u:%d : incorrect wMaxPacketSize for BADD profile\n",
898 iface_no, altn 898 iface_no, altno);
899 return NULL; 899 return NULL;
900 case UAC3_BADD_EP_MAXPSIZE_SYN 900 case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16:
901 case UAC3_BADD_EP_MAXPSIZE_ASY 901 case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16:
902 badd_formats = SNDRV_P 902 badd_formats = SNDRV_PCM_FMTBIT_S16_LE;
903 num_channels = 1; 903 num_channels = 1;
904 break; 904 break;
905 case UAC3_BADD_EP_MAXPSIZE_SYN 905 case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24:
906 case UAC3_BADD_EP_MAXPSIZE_ASY 906 case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24:
907 badd_formats = SNDRV_P 907 badd_formats = SNDRV_PCM_FMTBIT_S24_3LE;
908 num_channels = 1; 908 num_channels = 1;
909 break; 909 break;
910 case UAC3_BADD_EP_MAXPSIZE_SYN 910 case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16:
911 case UAC3_BADD_EP_MAXPSIZE_ASY 911 case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16:
912 badd_formats = SNDRV_P 912 badd_formats = SNDRV_PCM_FMTBIT_S16_LE;
913 num_channels = 2; 913 num_channels = 2;
914 break; 914 break;
915 case UAC3_BADD_EP_MAXPSIZE_SYN 915 case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24:
916 case UAC3_BADD_EP_MAXPSIZE_ASY 916 case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24:
917 badd_formats = SNDRV_P 917 badd_formats = SNDRV_PCM_FMTBIT_S24_3LE;
918 num_channels = 2; 918 num_channels = 2;
919 break; 919 break;
920 } 920 }
921 921
922 chmap = kzalloc(sizeof(*chmap) 922 chmap = kzalloc(sizeof(*chmap), GFP_KERNEL);
923 if (!chmap) 923 if (!chmap)
924 return ERR_PTR(-ENOMEM 924 return ERR_PTR(-ENOMEM);
925 925
926 if (num_channels == 1) { 926 if (num_channels == 1) {
927 chmap->map[0] = SNDRV_ 927 chmap->map[0] = SNDRV_CHMAP_MONO;
928 } else { 928 } else {
929 chmap->map[0] = SNDRV_ 929 chmap->map[0] = SNDRV_CHMAP_FL;
930 chmap->map[1] = SNDRV_ 930 chmap->map[1] = SNDRV_CHMAP_FR;
931 } 931 }
932 932
933 chmap->channels = num_channels 933 chmap->channels = num_channels;
934 clock = UAC3_BADD_CS_ID9; 934 clock = UAC3_BADD_CS_ID9;
935 goto found_clock; 935 goto found_clock;
936 } 936 }
937 937
938 as = snd_usb_find_csint_desc(alts->ext 938 as = snd_usb_find_csint_desc(alts->extra, alts->extralen,
939 NULL, UAC 939 NULL, UAC_AS_GENERAL);
940 if (!as) { 940 if (!as) {
941 dev_err(&dev->dev, 941 dev_err(&dev->dev,
942 "%u:%d : UAC_AS_GENERA 942 "%u:%d : UAC_AS_GENERAL descriptor not found\n",
943 iface_no, altno); 943 iface_no, altno);
944 return NULL; 944 return NULL;
945 } 945 }
946 946
947 if (as->bLength < sizeof(*as)) { 947 if (as->bLength < sizeof(*as)) {
948 dev_err(&dev->dev, 948 dev_err(&dev->dev,
949 "%u:%d : invalid UAC_A 949 "%u:%d : invalid UAC_AS_GENERAL desc\n",
950 iface_no, altno); 950 iface_no, altno);
951 return NULL; 951 return NULL;
952 } 952 }
953 953
954 cluster_id = le16_to_cpu(as->wClusterD 954 cluster_id = le16_to_cpu(as->wClusterDescrID);
955 if (!cluster_id) { 955 if (!cluster_id) {
956 dev_err(&dev->dev, 956 dev_err(&dev->dev,
957 "%u:%d : no cluster de 957 "%u:%d : no cluster descriptor\n",
958 iface_no, altno); 958 iface_no, altno);
959 return NULL; 959 return NULL;
960 } 960 }
961 961
962 /* 962 /*
963 * Get number of channels and channel 963 * Get number of channels and channel map through
964 * High Capability Cluster Descriptor 964 * High Capability Cluster Descriptor
965 * 965 *
966 * First step: get High Capability hea 966 * First step: get High Capability header and
967 * read size of Cluster Descriptor 967 * read size of Cluster Descriptor
968 */ 968 */
969 err = snd_usb_ctl_msg(chip->dev, 969 err = snd_usb_ctl_msg(chip->dev,
970 usb_rcvctrlpipe(chip-> 970 usb_rcvctrlpipe(chip->dev, 0),
971 UAC3_CS_REQ_HIGH_CAPAB 971 UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
972 USB_RECIP_INTERFACE | 972 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
973 cluster_id, 973 cluster_id,
974 snd_usb_ctrl_intf(ctrl 974 snd_usb_ctrl_intf(ctrl_intf),
975 &hc_header, sizeof(hc_ 975 &hc_header, sizeof(hc_header));
976 if (err < 0) 976 if (err < 0)
977 return ERR_PTR(err); 977 return ERR_PTR(err);
978 else if (err != sizeof(hc_header)) { 978 else if (err != sizeof(hc_header)) {
979 dev_err(&dev->dev, 979 dev_err(&dev->dev,
980 "%u:%d : can't get Hig 980 "%u:%d : can't get High Capability descriptor\n",
981 iface_no, altno); 981 iface_no, altno);
982 return ERR_PTR(-EIO); 982 return ERR_PTR(-EIO);
983 } 983 }
984 984
985 /* 985 /*
986 * Second step: allocate needed amount 986 * Second step: allocate needed amount of memory
987 * and request Cluster Descriptor 987 * and request Cluster Descriptor
988 */ 988 */
989 wLength = le16_to_cpu(hc_header.wLengt 989 wLength = le16_to_cpu(hc_header.wLength);
990 cluster = kzalloc(wLength, GFP_KERNEL) 990 cluster = kzalloc(wLength, GFP_KERNEL);
991 if (!cluster) 991 if (!cluster)
992 return ERR_PTR(-ENOMEM); 992 return ERR_PTR(-ENOMEM);
993 err = snd_usb_ctl_msg(chip->dev, 993 err = snd_usb_ctl_msg(chip->dev,
994 usb_rcvctrlpipe(chip-> 994 usb_rcvctrlpipe(chip->dev, 0),
995 UAC3_CS_REQ_HIGH_CAPAB 995 UAC3_CS_REQ_HIGH_CAPABILITY_DESCRIPTOR,
996 USB_RECIP_INTERFACE | 996 USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
997 cluster_id, 997 cluster_id,
998 snd_usb_ctrl_intf(ctrl 998 snd_usb_ctrl_intf(ctrl_intf),
999 cluster, wLength); 999 cluster, wLength);
1000 if (err < 0) { 1000 if (err < 0) {
1001 kfree(cluster); 1001 kfree(cluster);
1002 return ERR_PTR(err); 1002 return ERR_PTR(err);
1003 } else if (err != wLength) { 1003 } else if (err != wLength) {
1004 dev_err(&dev->dev, 1004 dev_err(&dev->dev,
1005 "%u:%d : can't get Cl 1005 "%u:%d : can't get Cluster Descriptor\n",
1006 iface_no, altno); 1006 iface_no, altno);
1007 kfree(cluster); 1007 kfree(cluster);
1008 return ERR_PTR(-EIO); 1008 return ERR_PTR(-EIO);
1009 } 1009 }
1010 1010
1011 num_channels = cluster->bNrChannels; 1011 num_channels = cluster->bNrChannels;
1012 chmap = convert_chmap_v3(cluster); 1012 chmap = convert_chmap_v3(cluster);
1013 kfree(cluster); 1013 kfree(cluster);
1014 1014
1015 /* 1015 /*
1016 * lookup the terminal associated to 1016 * lookup the terminal associated to this interface
1017 * to extract the clock 1017 * to extract the clock
1018 */ 1018 */
1019 input_term = snd_usb_find_input_termi 1019 input_term = snd_usb_find_input_terminal_descriptor(ctrl_intf,
1020 1020 as->bTerminalLink,
1021 1021 UAC_VERSION_3);
1022 if (input_term) { 1022 if (input_term) {
1023 clock = input_term->bCSourceI 1023 clock = input_term->bCSourceID;
1024 goto found_clock; 1024 goto found_clock;
1025 } 1025 }
1026 1026
1027 output_term = snd_usb_find_output_ter 1027 output_term = snd_usb_find_output_terminal_descriptor(ctrl_intf,
1028 1028 as->bTerminalLink,
1029 1029 UAC_VERSION_3);
1030 if (output_term) { 1030 if (output_term) {
1031 clock = output_term->bCSource 1031 clock = output_term->bCSourceID;
1032 goto found_clock; 1032 goto found_clock;
1033 } 1033 }
1034 1034
1035 dev_err(&dev->dev, "%u:%d : bogus bTe 1035 dev_err(&dev->dev, "%u:%d : bogus bTerminalLink %d\n",
1036 iface_no, altno, as-> 1036 iface_no, altno, as->bTerminalLink);
1037 kfree(chmap); 1037 kfree(chmap);
1038 return NULL; 1038 return NULL;
1039 1039
1040 found_clock: 1040 found_clock:
1041 fp = audio_format_alloc_init(chip, al 1041 fp = audio_format_alloc_init(chip, alts, UAC_VERSION_3, iface_no,
1042 altset_i 1042 altset_idx, altno, num_channels, clock);
1043 if (!fp) { 1043 if (!fp) {
1044 kfree(chmap); 1044 kfree(chmap);
1045 return ERR_PTR(-ENOMEM); 1045 return ERR_PTR(-ENOMEM);
1046 } 1046 }
1047 1047
1048 fp->chmap = chmap; 1048 fp->chmap = chmap;
1049 1049
1050 if (badd_profile >= UAC3_FUNCTION_SUB 1050 if (badd_profile >= UAC3_FUNCTION_SUBCLASS_GENERIC_IO) {
1051 fp->attributes = 0; /* No att 1051 fp->attributes = 0; /* No attributes */
1052 1052
1053 fp->fmt_type = UAC_FORMAT_TYP 1053 fp->fmt_type = UAC_FORMAT_TYPE_I;
1054 fp->formats = badd_formats; 1054 fp->formats = badd_formats;
1055 1055
1056 fp->nr_rates = 0; /* SN 1056 fp->nr_rates = 0; /* SNDRV_PCM_RATE_CONTINUOUS */
1057 fp->rate_min = UAC3_BADD_SAMP 1057 fp->rate_min = UAC3_BADD_SAMPLING_RATE;
1058 fp->rate_max = UAC3_BADD_SAMP 1058 fp->rate_max = UAC3_BADD_SAMPLING_RATE;
1059 fp->rates = SNDRV_PCM_RATE_CO 1059 fp->rates = SNDRV_PCM_RATE_CONTINUOUS;
1060 1060
1061 pd = kzalloc(sizeof(*pd), GFP 1061 pd = kzalloc(sizeof(*pd), GFP_KERNEL);
1062 if (!pd) { 1062 if (!pd) {
1063 audioformat_free(fp); 1063 audioformat_free(fp);
1064 return NULL; 1064 return NULL;
1065 } 1065 }
1066 pd->pd_id = (stream == SNDRV_ 1066 pd->pd_id = (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
1067 UAC3_ 1067 UAC3_BADD_PD_ID10 : UAC3_BADD_PD_ID11;
1068 pd->pd_d1d0_rec = UAC3_BADD_P 1068 pd->pd_d1d0_rec = UAC3_BADD_PD_RECOVER_D1D0;
1069 pd->pd_d2d0_rec = UAC3_BADD_P 1069 pd->pd_d2d0_rec = UAC3_BADD_PD_RECOVER_D2D0;
1070 pd->ctrl_iface = ctrl_intf; 1070 pd->ctrl_iface = ctrl_intf;
1071 1071
1072 } else { 1072 } else {
1073 fp->attributes = parse_uac_en 1073 fp->attributes = parse_uac_endpoint_attributes(chip, alts,
1074 1074 UAC_VERSION_3,
1075 1075 iface_no);
1076 1076
1077 pd = snd_usb_find_power_domai 1077 pd = snd_usb_find_power_domain(ctrl_intf,
1078 1078 as->bTerminalLink);
1079 1079
1080 /* ok, let's parse further... 1080 /* ok, let's parse further... */
1081 if (snd_usb_parse_audio_forma 1081 if (snd_usb_parse_audio_format_v3(chip, fp, as, stream) < 0) {
1082 kfree(pd); 1082 kfree(pd);
1083 audioformat_free(fp); 1083 audioformat_free(fp);
1084 return NULL; 1084 return NULL;
1085 } 1085 }
1086 } 1086 }
1087 1087
1088 if (pd) 1088 if (pd)
1089 *pd_out = pd; 1089 *pd_out = pd;
1090 1090
1091 return fp; 1091 return fp;
1092 } 1092 }
1093 1093
1094 static int __snd_usb_parse_audio_interface(st 1094 static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip,
1095 in 1095 int iface_no,
1096 bo 1096 bool *has_non_pcm, bool non_pcm)
1097 { 1097 {
1098 struct usb_device *dev; 1098 struct usb_device *dev;
1099 struct usb_interface *iface; 1099 struct usb_interface *iface;
1100 struct usb_host_interface *alts; 1100 struct usb_host_interface *alts;
1101 struct usb_interface_descriptor *alts 1101 struct usb_interface_descriptor *altsd;
1102 int i, altno, err, stream; 1102 int i, altno, err, stream;
1103 struct audioformat *fp = NULL; 1103 struct audioformat *fp = NULL;
1104 struct snd_usb_power_domain *pd = NUL 1104 struct snd_usb_power_domain *pd = NULL;
1105 bool set_iface_first; 1105 bool set_iface_first;
1106 int num, protocol; 1106 int num, protocol;
1107 1107
1108 dev = chip->dev; 1108 dev = chip->dev;
1109 1109
1110 /* parse the interface's altsettings 1110 /* parse the interface's altsettings */
1111 iface = usb_ifnum_to_if(dev, iface_no 1111 iface = usb_ifnum_to_if(dev, iface_no);
1112 1112
1113 num = iface->num_altsetting; 1113 num = iface->num_altsetting;
1114 1114
1115 /* 1115 /*
1116 * Dallas DS4201 workaround: It prese 1116 * Dallas DS4201 workaround: It presents 5 altsettings, but the last
1117 * one misses syncpipe, and does not 1117 * one misses syncpipe, and does not produce any sound.
1118 */ 1118 */
1119 if (chip->usb_id == USB_ID(0x04fa, 0x 1119 if (chip->usb_id == USB_ID(0x04fa, 0x4201) && num >= 4)
1120 num = 4; 1120 num = 4;
1121 1121
1122 for (i = 0; i < num; i++) { 1122 for (i = 0; i < num; i++) {
1123 alts = &iface->altsetting[i]; 1123 alts = &iface->altsetting[i];
1124 altsd = get_iface_desc(alts); 1124 altsd = get_iface_desc(alts);
1125 protocol = altsd->bInterfaceP 1125 protocol = altsd->bInterfaceProtocol;
1126 /* skip invalid one */ 1126 /* skip invalid one */
1127 if (((altsd->bInterfaceClass 1127 if (((altsd->bInterfaceClass != USB_CLASS_AUDIO ||
1128 (altsd->bInterfaceSubCl 1128 (altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING &&
1129 altsd->bInterfaceSubCl 1129 altsd->bInterfaceSubClass != USB_SUBCLASS_VENDOR_SPEC)) &&
1130 altsd->bInterfaceClass ! 1130 altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
1131 altsd->bNumEndpoints < 1 1131 altsd->bNumEndpoints < 1 ||
1132 le16_to_cpu(get_endpoint( 1132 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) == 0)
1133 continue; 1133 continue;
1134 /* must be isochronous */ 1134 /* must be isochronous */
1135 if ((get_endpoint(alts, 0)->b 1135 if ((get_endpoint(alts, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
1136 USB_ENDPOINT_XFER_ISOC) 1136 USB_ENDPOINT_XFER_ISOC)
1137 continue; 1137 continue;
1138 /* check direction */ 1138 /* check direction */
1139 stream = (get_endpoint(alts, 1139 stream = (get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN) ?
1140 SNDRV_PCM_STREAM_CAPT 1140 SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
1141 altno = altsd->bAlternateSett 1141 altno = altsd->bAlternateSetting;
1142 1142
1143 if (snd_usb_apply_interface_q 1143 if (snd_usb_apply_interface_quirk(chip, iface_no, altno))
1144 continue; 1144 continue;
1145 1145
1146 /* 1146 /*
1147 * Roland audio streaming int 1147 * Roland audio streaming interfaces are marked with protocols
1148 * 0/1/2, but are UAC 1 compa 1148 * 0/1/2, but are UAC 1 compatible.
1149 */ 1149 */
1150 if (USB_ID_VENDOR(chip->usb_i 1150 if (USB_ID_VENDOR(chip->usb_id) == 0x0582 &&
1151 altsd->bInterfaceClass == 1151 altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC &&
1152 protocol <= 2) 1152 protocol <= 2)
1153 protocol = UAC_VERSIO 1153 protocol = UAC_VERSION_1;
1154 1154
1155 switch (protocol) { 1155 switch (protocol) {
1156 default: 1156 default:
1157 dev_dbg(&dev->dev, "% 1157 dev_dbg(&dev->dev, "%u:%d: unknown interface protocol %#02x, assuming v1\n",
1158 iface_no, alt 1158 iface_no, altno, protocol);
1159 protocol = UAC_VERSIO 1159 protocol = UAC_VERSION_1;
1160 fallthrough; 1160 fallthrough;
1161 case UAC_VERSION_1: 1161 case UAC_VERSION_1:
1162 case UAC_VERSION_2: { 1162 case UAC_VERSION_2: {
1163 int bm_quirk = 0; 1163 int bm_quirk = 0;
1164 1164
1165 /* 1165 /*
1166 * Blue Microphones w 1166 * Blue Microphones workaround: The last altsetting is
1167 * identical with the 1167 * identical with the previous one, except for a larger
1168 * packet size, but i 1168 * packet size, but is actually a mislabeled two-channel
1169 * setting; ignore it 1169 * setting; ignore it.
1170 * 1170 *
1171 * Part 1: prepare qu 1171 * Part 1: prepare quirk flag
1172 */ 1172 */
1173 if (altno == 2 && num 1173 if (altno == 2 && num == 3 &&
1174 fp && fp->altsett 1174 fp && fp->altsetting == 1 && fp->channels == 1 &&
1175 fp->formats == SN 1175 fp->formats == SNDRV_PCM_FMTBIT_S16_LE &&
1176 protocol == UAC_V 1176 protocol == UAC_VERSION_1 &&
1177 le16_to_cpu(get_e 1177 le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize) ==
1178 1178 fp->maxpacksize * 2)
1179 bm_quirk = 1; 1179 bm_quirk = 1;
1180 1180
1181 fp = snd_usb_get_audi 1181 fp = snd_usb_get_audioformat_uac12(chip, alts, protocol,
1182 1182 iface_no, i, altno,
1183 1183 stream, bm_quirk);
1184 break; 1184 break;
1185 } 1185 }
1186 case UAC_VERSION_3: 1186 case UAC_VERSION_3:
1187 fp = snd_usb_get_audi 1187 fp = snd_usb_get_audioformat_uac3(chip, alts, &pd,
1188 1188 iface_no, i, altno, stream);
1189 break; 1189 break;
1190 } 1190 }
1191 1191
1192 if (!fp) 1192 if (!fp)
1193 continue; 1193 continue;
1194 else if (IS_ERR(fp)) 1194 else if (IS_ERR(fp))
1195 return PTR_ERR(fp); 1195 return PTR_ERR(fp);
1196 1196
1197 if (fp->fmt_type != UAC_FORMA 1197 if (fp->fmt_type != UAC_FORMAT_TYPE_I)
1198 *has_non_pcm = true; 1198 *has_non_pcm = true;
1199 if ((fp->fmt_type == UAC_FORM 1199 if ((fp->fmt_type == UAC_FORMAT_TYPE_I) == non_pcm) {
1200 audioformat_free(fp); 1200 audioformat_free(fp);
1201 kfree(pd); 1201 kfree(pd);
1202 fp = NULL; 1202 fp = NULL;
1203 pd = NULL; 1203 pd = NULL;
1204 continue; 1204 continue;
1205 } 1205 }
1206 1206
1207 snd_usb_audioformat_set_sync_ 1207 snd_usb_audioformat_set_sync_ep(chip, fp);
1208 1208
1209 dev_dbg(&dev->dev, "%u:%d: ad 1209 dev_dbg(&dev->dev, "%u:%d: add audio endpoint %#x\n", iface_no, altno, fp->endpoint);
1210 if (protocol == UAC_VERSION_3 1210 if (protocol == UAC_VERSION_3)
1211 err = snd_usb_add_aud 1211 err = snd_usb_add_audio_stream_v3(chip, stream, fp, pd);
1212 else 1212 else
1213 err = snd_usb_add_aud 1213 err = snd_usb_add_audio_stream(chip, stream, fp);
1214 1214
1215 if (err < 0) { 1215 if (err < 0) {
1216 audioformat_free(fp); 1216 audioformat_free(fp);
1217 kfree(pd); 1217 kfree(pd);
1218 return err; 1218 return err;
1219 } 1219 }
1220 1220
1221 /* add endpoints */ 1221 /* add endpoints */
1222 err = snd_usb_add_endpoint(ch 1222 err = snd_usb_add_endpoint(chip, fp->endpoint,
1223 SN 1223 SND_USB_ENDPOINT_TYPE_DATA);
1224 if (err < 0) 1224 if (err < 0)
1225 return err; 1225 return err;
1226 1226
1227 if (fp->sync_ep) { 1227 if (fp->sync_ep) {
1228 err = snd_usb_add_end 1228 err = snd_usb_add_endpoint(chip, fp->sync_ep,
1229 1229 fp->implicit_fb ?
1230 1230 SND_USB_ENDPOINT_TYPE_DATA :
1231 1231 SND_USB_ENDPOINT_TYPE_SYNC);
1232 if (err < 0) 1232 if (err < 0)
1233 return err; 1233 return err;
1234 } 1234 }
1235 1235
1236 set_iface_first = false; 1236 set_iface_first = false;
1237 if (protocol == UAC_VERSION_1 1237 if (protocol == UAC_VERSION_1 ||
1238 (chip->quirk_flags & QUIR 1238 (chip->quirk_flags & QUIRK_FLAG_SET_IFACE_FIRST))
1239 set_iface_first = tru 1239 set_iface_first = true;
1240 1240
1241 /* try to set the interface.. 1241 /* try to set the interface... */
1242 usb_set_interface(chip->dev, 1242 usb_set_interface(chip->dev, iface_no, 0);
1243 if (set_iface_first) 1243 if (set_iface_first)
1244 usb_set_interface(chi 1244 usb_set_interface(chip->dev, iface_no, altno);
1245 snd_usb_init_pitch(chip, fp); 1245 snd_usb_init_pitch(chip, fp);
1246 snd_usb_init_sample_rate(chip 1246 snd_usb_init_sample_rate(chip, fp, fp->rate_max);
1247 if (!set_iface_first) 1247 if (!set_iface_first)
1248 usb_set_interface(chi 1248 usb_set_interface(chip->dev, iface_no, altno);
1249 } 1249 }
1250 return 0; 1250 return 0;
1251 } 1251 }
1252 1252
1253 int snd_usb_parse_audio_interface(struct snd_ 1253 int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
1254 { 1254 {
1255 int err; 1255 int err;
1256 bool has_non_pcm = false; 1256 bool has_non_pcm = false;
1257 1257
1258 /* parse PCM formats */ 1258 /* parse PCM formats */
1259 err = __snd_usb_parse_audio_interface 1259 err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, false);
1260 if (err < 0) 1260 if (err < 0)
1261 return err; 1261 return err;
1262 1262
1263 if (has_non_pcm) { 1263 if (has_non_pcm) {
1264 /* parse non-PCM formats */ 1264 /* parse non-PCM formats */
1265 err = __snd_usb_parse_audio_i 1265 err = __snd_usb_parse_audio_interface(chip, iface_no, &has_non_pcm, true);
1266 if (err < 0) 1266 if (err < 0)
1267 return err; 1267 return err;
1268 } 1268 }
1269 1269
1270 return 0; 1270 return 0;
1271 } 1271 }
1272 1272
1273 1273
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.