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