Commit | Line | Data |
---|---|---|
1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
e5779998 | 2 | /* |
e5779998 DM |
3 | */ |
4 | ||
5 | #include <linux/init.h> | |
9966ddaf | 6 | #include <linux/slab.h> |
44dcbbb1 | 7 | #include <linux/bitrev.h> |
edcd3633 | 8 | #include <linux/ratelimit.h> |
e5779998 DM |
9 | #include <linux/usb.h> |
10 | #include <linux/usb/audio.h> | |
7e847894 | 11 | #include <linux/usb/audio-v2.h> |
e5779998 DM |
12 | |
13 | #include <sound/core.h> | |
14 | #include <sound/pcm.h> | |
15 | #include <sound/pcm_params.h> | |
16 | ||
17 | #include "usbaudio.h" | |
18 | #include "card.h" | |
19 | #include "quirks.h" | |
c731bc96 | 20 | #include "endpoint.h" |
e5779998 DM |
21 | #include "helper.h" |
22 | #include "pcm.h" | |
79f920fb | 23 | #include "clock.h" |
88a8516a | 24 | #include "power.h" |
66354f18 | 25 | #include "media.h" |
e5779998 | 26 | |
edcd3633 DM |
27 | #define SUBSTREAM_FLAG_DATA_EP_STARTED 0 |
28 | #define SUBSTREAM_FLAG_SYNC_EP_STARTED 1 | |
29 | ||
294c4fb8 PLB |
30 | /* return the estimated delay based on USB frame counters */ |
31 | snd_pcm_uframes_t snd_usb_pcm_delay(struct snd_usb_substream *subs, | |
32 | unsigned int rate) | |
33 | { | |
34 | int current_frame_number; | |
35 | int frame_diff; | |
36 | int est_delay; | |
37 | ||
48779a0b TI |
38 | if (!subs->last_delay) |
39 | return 0; /* short path */ | |
40 | ||
294c4fb8 PLB |
41 | current_frame_number = usb_get_current_frame_number(subs->dev); |
42 | /* | |
43 | * HCD implementations use different widths, use lower 8 bits. | |
44 | * The delay will be managed up to 256ms, which is more than | |
45 | * enough | |
46 | */ | |
47 | frame_diff = (current_frame_number - subs->last_frame_number) & 0xff; | |
48 | ||
49 | /* Approximation based on number of samples per USB frame (ms), | |
50 | some truncation for 44.1 but the estimate is good enough */ | |
e4cc6153 PLB |
51 | est_delay = frame_diff * rate / 1000; |
52 | if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) | |
53 | est_delay = subs->last_delay - est_delay; | |
54 | else | |
55 | est_delay = subs->last_delay + est_delay; | |
56 | ||
294c4fb8 PLB |
57 | if (est_delay < 0) |
58 | est_delay = 0; | |
59 | return est_delay; | |
60 | } | |
61 | ||
e5779998 DM |
62 | /* |
63 | * return the current pcm pointer. just based on the hwptr_done value. | |
64 | */ | |
65 | static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream) | |
66 | { | |
e92be814 | 67 | struct snd_usb_substream *subs = substream->runtime->private_data; |
e5779998 DM |
68 | unsigned int hwptr_done; |
69 | ||
47ab1545 | 70 | if (atomic_read(&subs->stream->chip->shutdown)) |
978520b7 | 71 | return SNDRV_PCM_POS_XRUN; |
e5779998 DM |
72 | spin_lock(&subs->lock); |
73 | hwptr_done = subs->hwptr_done; | |
e4cc6153 | 74 | substream->runtime->delay = snd_usb_pcm_delay(subs, |
294c4fb8 | 75 | substream->runtime->rate); |
e5779998 DM |
76 | spin_unlock(&subs->lock); |
77 | return hwptr_done / (substream->runtime->frame_bits >> 3); | |
78 | } | |
79 | ||
80 | /* | |
81 | * find a matching audio format | |
82 | */ | |
5a6c3e11 TI |
83 | static struct audioformat *find_format(struct list_head *fmt_list_head, |
84 | snd_pcm_format_t format, | |
85 | unsigned int rate, | |
86 | unsigned int channels, | |
87 | struct snd_usb_substream *subs) | |
e5779998 | 88 | { |
88766f04 | 89 | struct audioformat *fp; |
e5779998 DM |
90 | struct audioformat *found = NULL; |
91 | int cur_attr = 0, attr; | |
92 | ||
5a6c3e11 TI |
93 | list_for_each_entry(fp, fmt_list_head, list) { |
94 | if (!(fp->formats & pcm_format_to_bits(format))) | |
015eb0b0 | 95 | continue; |
5a6c3e11 | 96 | if (fp->channels != channels) |
e5779998 | 97 | continue; |
5a6c3e11 | 98 | if (rate < fp->rate_min || rate > fp->rate_max) |
e5779998 | 99 | continue; |
5a6c3e11 | 100 | if (!(fp->rates & SNDRV_PCM_RATE_CONTINUOUS)) { |
e5779998 DM |
101 | unsigned int i; |
102 | for (i = 0; i < fp->nr_rates; i++) | |
5a6c3e11 | 103 | if (fp->rate_table[i] == rate) |
e5779998 DM |
104 | break; |
105 | if (i >= fp->nr_rates) | |
106 | continue; | |
107 | } | |
108 | attr = fp->ep_attr & USB_ENDPOINT_SYNCTYPE; | |
5a6c3e11 | 109 | if (!found) { |
e5779998 DM |
110 | found = fp; |
111 | cur_attr = attr; | |
112 | continue; | |
113 | } | |
114 | /* avoid async out and adaptive in if the other method | |
115 | * supports the same format. | |
116 | * this is a workaround for the case like | |
117 | * M-audio audiophile USB. | |
118 | */ | |
5a6c3e11 | 119 | if (subs && attr != cur_attr) { |
e5779998 DM |
120 | if ((attr == USB_ENDPOINT_SYNC_ASYNC && |
121 | subs->direction == SNDRV_PCM_STREAM_PLAYBACK) || | |
122 | (attr == USB_ENDPOINT_SYNC_ADAPTIVE && | |
123 | subs->direction == SNDRV_PCM_STREAM_CAPTURE)) | |
124 | continue; | |
125 | if ((cur_attr == USB_ENDPOINT_SYNC_ASYNC && | |
126 | subs->direction == SNDRV_PCM_STREAM_PLAYBACK) || | |
127 | (cur_attr == USB_ENDPOINT_SYNC_ADAPTIVE && | |
128 | subs->direction == SNDRV_PCM_STREAM_CAPTURE)) { | |
129 | found = fp; | |
130 | cur_attr = attr; | |
131 | continue; | |
132 | } | |
133 | } | |
134 | /* find the format with the largest max. packet size */ | |
135 | if (fp->maxpacksize > found->maxpacksize) { | |
136 | found = fp; | |
137 | cur_attr = attr; | |
138 | } | |
139 | } | |
140 | return found; | |
141 | } | |
142 | ||
5a6c3e11 TI |
143 | static struct audioformat *find_substream_format(struct snd_usb_substream *subs) |
144 | { | |
145 | return find_format(&subs->fmt_list, subs->pcm_format, subs->cur_rate, | |
146 | subs->channels, subs); | |
147 | } | |
148 | ||
73037c8d | 149 | static int init_pitch_v1(struct snd_usb_audio *chip, |
767d75ad DM |
150 | struct audioformat *fmt) |
151 | { | |
152 | struct usb_device *dev = chip->dev; | |
153 | unsigned int ep; | |
154 | unsigned char data[1]; | |
155 | int err; | |
156 | ||
73037c8d | 157 | ep = fmt->endpoint; |
767d75ad | 158 | |
767d75ad | 159 | data[0] = 1; |
f25ecf8f TI |
160 | err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, |
161 | USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, | |
162 | UAC_EP_CS_ATTR_PITCH_CONTROL << 8, ep, | |
163 | data, sizeof(data)); | |
164 | if (err < 0) { | |
0ba41d91 | 165 | usb_audio_err(chip, "%d:%d: cannot set enable PITCH\n", |
73037c8d | 166 | fmt->iface, ep); |
767d75ad DM |
167 | return err; |
168 | } | |
169 | ||
170 | return 0; | |
171 | } | |
e5779998 | 172 | |
73037c8d | 173 | static int init_pitch_v2(struct snd_usb_audio *chip, |
92c25611 DM |
174 | struct audioformat *fmt) |
175 | { | |
176 | struct usb_device *dev = chip->dev; | |
177 | unsigned char data[1]; | |
92c25611 DM |
178 | int err; |
179 | ||
92c25611 | 180 | data[0] = 1; |
f25ecf8f TI |
181 | err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR, |
182 | USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT, | |
183 | UAC2_EP_CS_PITCH << 8, 0, | |
184 | data, sizeof(data)); | |
185 | if (err < 0) { | |
0ba41d91 | 186 | usb_audio_err(chip, "%d:%d: cannot set enable PITCH (v2)\n", |
73037c8d | 187 | fmt->iface, fmt->altsetting); |
92c25611 DM |
188 | return err; |
189 | } | |
190 | ||
191 | return 0; | |
192 | } | |
193 | ||
e5779998 | 194 | /* |
92c25611 | 195 | * initialize the pitch control and sample rate |
e5779998 | 196 | */ |
73037c8d | 197 | int snd_usb_init_pitch(struct snd_usb_audio *chip, |
e5779998 DM |
198 | struct audioformat *fmt) |
199 | { | |
92c25611 DM |
200 | /* if endpoint doesn't have pitch control, bail out */ |
201 | if (!(fmt->attributes & UAC_EP_CS_ATTR_PITCH_CONTROL)) | |
202 | return 0; | |
203 | ||
8f898e92 | 204 | switch (fmt->protocol) { |
767d75ad | 205 | case UAC_VERSION_1: |
a2acad82 | 206 | default: |
73037c8d | 207 | return init_pitch_v1(chip, fmt); |
767d75ad DM |
208 | |
209 | case UAC_VERSION_2: | |
73037c8d | 210 | return init_pitch_v2(chip, fmt); |
767d75ad | 211 | } |
767d75ad DM |
212 | } |
213 | ||
1d0f9530 | 214 | static int start_endpoints(struct snd_usb_substream *subs) |
edcd3633 DM |
215 | { |
216 | int err; | |
217 | ||
218 | if (!subs->data_endpoint) | |
219 | return -EINVAL; | |
220 | ||
221 | if (!test_and_set_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) { | |
222 | struct snd_usb_endpoint *ep = subs->data_endpoint; | |
223 | ||
e93e890e | 224 | dev_dbg(&subs->dev->dev, "Starting data EP 0x%x\n", ep->ep_num); |
edcd3633 DM |
225 | |
226 | ep->data_subs = subs; | |
1d0f9530 | 227 | err = snd_usb_endpoint_start(ep); |
edcd3633 DM |
228 | if (err < 0) { |
229 | clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags); | |
230 | return err; | |
231 | } | |
232 | } | |
233 | ||
234 | if (subs->sync_endpoint && | |
235 | !test_and_set_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags)) { | |
236 | struct snd_usb_endpoint *ep = subs->sync_endpoint; | |
237 | ||
e93e890e | 238 | dev_dbg(&subs->dev->dev, "Starting sync EP 0x%x\n", ep->ep_num); |
edcd3633 DM |
239 | |
240 | ep->sync_slave = subs->data_endpoint; | |
1d0f9530 | 241 | err = snd_usb_endpoint_start(ep); |
edcd3633 DM |
242 | if (err < 0) { |
243 | clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags); | |
1803503f | 244 | ep->sync_slave = NULL; |
edcd3633 DM |
245 | return err; |
246 | } | |
247 | } | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
dc5eafe7 TI |
252 | static void sync_pending_stops(struct snd_usb_substream *subs) |
253 | { | |
254 | snd_usb_endpoint_sync_pending_stop(subs->sync_endpoint); | |
255 | snd_usb_endpoint_sync_pending_stop(subs->data_endpoint); | |
256 | } | |
257 | ||
258 | static void stop_endpoints(struct snd_usb_substream *subs) | |
edcd3633 | 259 | { |
1803503f | 260 | if (test_and_clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags)) { |
e93e890e TI |
261 | dev_dbg(&subs->dev->dev, "Stopping sync EP 0x%x\n", |
262 | subs->sync_endpoint->ep_num); | |
b2eb950d | 263 | snd_usb_endpoint_stop(subs->sync_endpoint); |
1803503f TI |
264 | subs->sync_endpoint->sync_slave = NULL; |
265 | } | |
edcd3633 | 266 | |
e93e890e TI |
267 | if (test_and_clear_bit(SUBSTREAM_FLAG_DATA_EP_STARTED, &subs->flags)) { |
268 | dev_dbg(&subs->dev->dev, "Stopping data EP 0x%x\n", | |
269 | subs->data_endpoint->ep_num); | |
b2eb950d | 270 | snd_usb_endpoint_stop(subs->data_endpoint); |
e93e890e | 271 | } |
dc5eafe7 | 272 | } |
b2eb950d | 273 | |
dc5eafe7 TI |
274 | /* PCM sync_stop callback */ |
275 | static int snd_usb_pcm_sync_stop(struct snd_pcm_substream *substream) | |
276 | { | |
277 | struct snd_usb_substream *subs = substream->runtime->private_data; | |
278 | ||
279 | if (!snd_usb_lock_shutdown(subs->stream->chip)) { | |
280 | sync_pending_stops(subs); | |
281 | snd_usb_unlock_shutdown(subs->stream->chip); | |
b2eb950d | 282 | } |
dc5eafe7 | 283 | return 0; |
edcd3633 DM |
284 | } |
285 | ||
2e43aae2 | 286 | /* Check whether the given iface:altsetting points to an implicit fb source */ |
e42a09bc | 287 | static bool search_generic_implicit_fb(struct snd_usb_audio *chip, int ifnum, |
2e43aae2 TI |
288 | unsigned int altsetting, |
289 | struct usb_host_interface **altsp, | |
290 | unsigned int *ep) | |
ba7c2be1 | 291 | { |
2e43aae2 TI |
292 | struct usb_host_interface *alts; |
293 | struct usb_interface_descriptor *altsd; | |
294 | struct usb_endpoint_descriptor *epd; | |
295 | ||
e42a09bc | 296 | alts = snd_usb_get_host_interface(chip, ifnum, altsetting); |
2e43aae2 TI |
297 | if (!alts) |
298 | return false; | |
299 | altsd = get_iface_desc(alts); | |
300 | if (altsd->bInterfaceClass != USB_CLASS_AUDIO || | |
301 | altsd->bInterfaceSubClass != USB_SUBCLASS_AUDIOSTREAMING || | |
302 | altsd->bInterfaceProtocol != UAC_VERSION_2 || | |
303 | altsd->bNumEndpoints < 1) | |
304 | return false; | |
305 | epd = get_endpoint(alts, 0); | |
306 | if (!usb_endpoint_is_isoc_in(epd) || | |
307 | (epd->bmAttributes & USB_ENDPOINT_USAGE_MASK) != | |
308 | USB_ENDPOINT_USAGE_IMPLICIT_FB) | |
309 | return false; | |
310 | *ep = epd->bEndpointAddress; | |
311 | *altsp = alts; | |
312 | return true; | |
313 | } | |
314 | ||
315 | /* Like the function above, but specific to Roland with vendor class and hack */ | |
e42a09bc | 316 | static bool search_roland_implicit_fb(struct snd_usb_audio *chip, int ifnum, |
2e43aae2 TI |
317 | unsigned int altsetting, |
318 | struct usb_host_interface **altsp, | |
319 | unsigned int *ep) | |
320 | { | |
2e43aae2 | 321 | struct usb_host_interface *alts; |
ba7c2be1 CL |
322 | struct usb_interface_descriptor *altsd; |
323 | struct usb_endpoint_descriptor *epd; | |
324 | ||
e42a09bc | 325 | alts = snd_usb_get_host_interface(chip, ifnum, altsetting); |
2e43aae2 TI |
326 | if (!alts) |
327 | return false; | |
328 | altsd = get_iface_desc(alts); | |
329 | if (altsd->bInterfaceClass != USB_CLASS_VENDOR_SPEC || | |
ba7c2be1 | 330 | (altsd->bInterfaceSubClass != 2 && |
2e43aae2 | 331 | altsd->bInterfaceProtocol != 2) || |
ba7c2be1 | 332 | altsd->bNumEndpoints < 1) |
2e43aae2 TI |
333 | return false; |
334 | epd = get_endpoint(alts, 0); | |
ba7c2be1 CL |
335 | if (!usb_endpoint_is_isoc_in(epd) || |
336 | (epd->bmAttributes & USB_ENDPOINT_USAGE_MASK) != | |
337 | USB_ENDPOINT_USAGE_IMPLICIT_FB) | |
2e43aae2 | 338 | return false; |
ba7c2be1 | 339 | *ep = epd->bEndpointAddress; |
2e43aae2 TI |
340 | *altsp = alts; |
341 | return true; | |
ba7c2be1 CL |
342 | } |
343 | ||
2bc16b9f MR |
344 | /* Setup an implicit feedback endpoint from a quirk. Returns 0 if no quirk |
345 | * applies. Returns 1 if a quirk was found. | |
346 | */ | |
f6581c0e TI |
347 | static int audioformat_implicit_fb_quirk(struct snd_usb_audio *chip, |
348 | struct audioformat *fmt, | |
f6581c0e | 349 | struct usb_host_interface *alts) |
e5779998 | 350 | { |
f6581c0e TI |
351 | struct usb_device *dev = chip->dev; |
352 | struct usb_interface_descriptor *altsd = get_iface_desc(alts); | |
e42a09bc | 353 | struct usb_interface *iface; |
f6581c0e | 354 | unsigned int attr = fmt->ep_attr & USB_ENDPOINT_SYNCTYPE; |
a60945fd | 355 | unsigned int ep; |
103e9625 | 356 | unsigned int ifnum; |
c75a8a7a | 357 | |
f6581c0e | 358 | switch (chip->usb_id) { |
ca10a7eb | 359 | case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */ |
e9a25e04 | 360 | case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C600 */ |
0938ecae | 361 | case USB_ID(0x22f0, 0x0006): /* Allen&Heath Qu-16 */ |
914273c7 | 362 | ep = 0x81; |
103e9625 AA |
363 | ifnum = 3; |
364 | goto add_sync_ep_from_ifnum; | |
c75a8a7a DM |
365 | case USB_ID(0x0763, 0x2080): /* M-Audio FastTrack Ultra */ |
366 | case USB_ID(0x0763, 0x2081): | |
914273c7 | 367 | ep = 0x81; |
103e9625 AA |
368 | ifnum = 2; |
369 | goto add_sync_ep_from_ifnum; | |
370 | case USB_ID(0x2466, 0x8003): /* Fractal Audio Axe-Fx II */ | |
26201ddc | 371 | case USB_ID(0x0499, 0x172a): /* Yamaha MODX */ |
17f08b0d | 372 | ep = 0x86; |
103e9625 AA |
373 | ifnum = 2; |
374 | goto add_sync_ep_from_ifnum; | |
91a8561d AA |
375 | case USB_ID(0x2466, 0x8010): /* Fractal Audio Axe-Fx III */ |
376 | ep = 0x81; | |
377 | ifnum = 2; | |
378 | goto add_sync_ep_from_ifnum; | |
f15cfca8 KW |
379 | case USB_ID(0x1686, 0xf029): /* Zoom UAC-2 */ |
380 | ep = 0x82; | |
381 | ifnum = 2; | |
382 | goto add_sync_ep_from_ifnum; | |
1a15718b | 383 | case USB_ID(0x1397, 0x0001): /* Behringer UFX1604 */ |
103e9625 | 384 | case USB_ID(0x1397, 0x0002): /* Behringer UFX1204 */ |
5e35dc03 | 385 | ep = 0x81; |
103e9625 AA |
386 | ifnum = 1; |
387 | goto add_sync_ep_from_ifnum; | |
2edb84e3 AT |
388 | case USB_ID(0x07fd, 0x0004): /* MOTU MicroBook II/IIc */ |
389 | /* MicroBook IIc */ | |
390 | if (altsd->bInterfaceClass == USB_CLASS_AUDIO) | |
391 | return 0; | |
392 | ||
393 | /* MicroBook II */ | |
a634090a MR |
394 | ep = 0x84; |
395 | ifnum = 0; | |
396 | goto add_sync_ep_from_ifnum; | |
c2491779 | 397 | case USB_ID(0x07fd, 0x0008): /* MOTU M Series */ |
3da87ec6 | 398 | case USB_ID(0x31e9, 0x0001): /* Solid State Logic SSL2 */ |
e7585db1 | 399 | case USB_ID(0x31e9, 0x0002): /* Solid State Logic SSL2+ */ |
7c5b892e | 400 | case USB_ID(0x0499, 0x172f): /* Steinberg UR22C */ |
b6a1e78b | 401 | case USB_ID(0x0d9a, 0x00df): /* RTX6001 */ |
c2491779 AT |
402 | ep = 0x81; |
403 | ifnum = 2; | |
404 | goto add_sync_ep_from_ifnum; | |
7fccfecf | 405 | case USB_ID(0x2b73, 0x000a): /* Pioneer DJ DJM-900NXS2 */ |
14335d8b | 406 | case USB_ID(0x2b73, 0x0017): /* Pioneer DJ DJM-250MK2 */ |
7fccfecf DP |
407 | ep = 0x82; |
408 | ifnum = 0; | |
409 | goto add_sync_ep_from_ifnum; | |
7571b6a1 SS |
410 | case USB_ID(0x0582, 0x01d8): /* BOSS Katana */ |
411 | /* BOSS Katana amplifiers do not need quirks */ | |
412 | return 0; | |
c75a8a7a | 413 | } |
103e9625 | 414 | |
2e43aae2 TI |
415 | /* Generic UAC2 implicit feedback */ |
416 | if (attr == USB_ENDPOINT_SYNC_ASYNC && | |
417 | altsd->bInterfaceClass == USB_CLASS_AUDIO && | |
418 | altsd->bInterfaceProtocol == UAC_VERSION_2 && | |
419 | altsd->bNumEndpoints == 1) { | |
420 | ifnum = altsd->bInterfaceNumber + 1; | |
e42a09bc | 421 | if (search_generic_implicit_fb(chip, ifnum, |
2e43aae2 TI |
422 | altsd->bAlternateSetting, |
423 | &alts, &ep)) | |
424 | goto add_sync_ep; | |
425 | } | |
426 | ||
427 | /* Roland/BOSS implicit feedback with vendor spec class */ | |
914273c7 | 428 | if (attr == USB_ENDPOINT_SYNC_ASYNC && |
ba7c2be1 CL |
429 | altsd->bInterfaceClass == USB_CLASS_VENDOR_SPEC && |
430 | altsd->bInterfaceProtocol == 2 && | |
431 | altsd->bNumEndpoints == 1 && | |
f6581c0e TI |
432 | USB_ID_VENDOR(chip->usb_id) == 0x0582 /* Roland */) { |
433 | ifnum = altsd->bInterfaceNumber + 1; | |
e42a09bc | 434 | if (search_roland_implicit_fb(chip, ifnum, |
f6581c0e TI |
435 | altsd->bAlternateSetting, |
436 | &alts, &ep)) | |
437 | goto add_sync_ep; | |
438 | } | |
edcd3633 | 439 | |
a60945fd EZ |
440 | /* No quirk */ |
441 | return 0; | |
442 | ||
103e9625 AA |
443 | add_sync_ep_from_ifnum: |
444 | iface = usb_ifnum_to_if(dev, ifnum); | |
445 | ||
5d1b7122 | 446 | if (!iface || iface->num_altsetting < 2) |
f6581c0e | 447 | return 0; |
103e9625 AA |
448 | |
449 | alts = &iface->altsetting[1]; | |
450 | ||
a60945fd | 451 | add_sync_ep: |
f6581c0e TI |
452 | fmt->sync_ep = ep; |
453 | fmt->sync_iface = ifnum; | |
454 | fmt->sync_altsetting = alts->desc.bAlternateSetting; | |
455 | fmt->implicit_fb = 1; | |
456 | dev_dbg(&dev->dev, "%d:%d: found implicit_fb sync_ep=%x, iface=%d, alt=%d\n", | |
457 | fmt->iface, fmt->altsetting, fmt->sync_ep, fmt->sync_iface, | |
458 | fmt->sync_altsetting); | |
a60945fd | 459 | |
2bc16b9f | 460 | return 1; |
a60945fd EZ |
461 | } |
462 | ||
f6581c0e TI |
463 | int snd_usb_audioformat_set_sync_ep(struct snd_usb_audio *chip, |
464 | struct audioformat *fmt) | |
a60945fd | 465 | { |
f6581c0e | 466 | struct usb_device *dev = chip->dev; |
f6581c0e TI |
467 | struct usb_host_interface *alts; |
468 | struct usb_interface_descriptor *altsd; | |
469 | unsigned int ep, attr, sync_attr; | |
470 | bool is_playback; | |
a60945fd EZ |
471 | int err; |
472 | ||
e42a09bc | 473 | alts = snd_usb_get_host_interface(chip, fmt->iface, fmt->altsetting); |
f6581c0e | 474 | if (!alts) |
2bc16b9f | 475 | return 0; |
f6581c0e TI |
476 | altsd = get_iface_desc(alts); |
477 | ||
478 | is_playback = !(get_endpoint(alts, 0)->bEndpointAddress & USB_DIR_IN); | |
479 | if (is_playback) { | |
e42a09bc | 480 | err = audioformat_implicit_fb_quirk(chip, fmt, alts); |
f6581c0e TI |
481 | if (err > 0) |
482 | return 0; | |
483 | } | |
2bc16b9f | 484 | |
f34d0650 EZ |
485 | if (altsd->bNumEndpoints < 2) |
486 | return 0; | |
c75a8a7a | 487 | |
f6581c0e | 488 | attr = fmt->ep_attr & USB_ENDPOINT_SYNCTYPE; |
395ae54b PLB |
489 | if ((is_playback && (attr == USB_ENDPOINT_SYNC_SYNC || |
490 | attr == USB_ENDPOINT_SYNC_ADAPTIVE)) || | |
f34d0650 EZ |
491 | (!is_playback && attr != USB_ENDPOINT_SYNC_ADAPTIVE)) |
492 | return 0; | |
edcd3633 | 493 | |
f6581c0e TI |
494 | sync_attr = get_endpoint(alts, 1)->bmAttributes; |
495 | ||
395ae54b PLB |
496 | /* |
497 | * In case of illegal SYNC_NONE for OUT endpoint, we keep going to see | |
498 | * if we don't find a sync endpoint, as on M-Audio Transit. In case of | |
499 | * error fall back to SYNC mode and don't create sync endpoint | |
500 | */ | |
501 | ||
f34d0650 EZ |
502 | /* check sync-pipe endpoint */ |
503 | /* ... and check descriptor size before accessing bSynchAddress | |
504 | because there is a version of the SB Audigy 2 NX firmware lacking | |
505 | the audio fields in the endpoint descriptors */ | |
f6581c0e | 506 | if ((sync_attr & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_ISOC || |
f34d0650 | 507 | (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && |
95fec883 | 508 | get_endpoint(alts, 1)->bSynchAddress != 0)) { |
0ba41d91 TI |
509 | dev_err(&dev->dev, |
510 | "%d:%d : invalid sync pipe. bmAttributes %02x, bLength %d, bSynchAddress %02x\n", | |
511 | fmt->iface, fmt->altsetting, | |
f34d0650 EZ |
512 | get_endpoint(alts, 1)->bmAttributes, |
513 | get_endpoint(alts, 1)->bLength, | |
514 | get_endpoint(alts, 1)->bSynchAddress); | |
395ae54b PLB |
515 | if (is_playback && attr == USB_ENDPOINT_SYNC_NONE) |
516 | return 0; | |
f34d0650 EZ |
517 | return -EINVAL; |
518 | } | |
519 | ep = get_endpoint(alts, 1)->bEndpointAddress; | |
95fec883 | 520 | if (get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && |
1b34121d | 521 | get_endpoint(alts, 0)->bSynchAddress != 0 && |
f34d0650 EZ |
522 | ((is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) || |
523 | (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)))) { | |
0ba41d91 TI |
524 | dev_err(&dev->dev, |
525 | "%d:%d : invalid sync pipe. is_playback %d, ep %02x, bSynchAddress %02x\n", | |
526 | fmt->iface, fmt->altsetting, | |
f34d0650 | 527 | is_playback, ep, get_endpoint(alts, 0)->bSynchAddress); |
395ae54b PLB |
528 | if (is_playback && attr == USB_ENDPOINT_SYNC_NONE) |
529 | return 0; | |
f34d0650 | 530 | return -EINVAL; |
edcd3633 | 531 | } |
e5779998 | 532 | |
f6581c0e TI |
533 | fmt->sync_ep = ep; |
534 | fmt->sync_iface = altsd->bInterfaceNumber; | |
535 | fmt->sync_altsetting = altsd->bAlternateSetting; | |
536 | if ((sync_attr & USB_ENDPOINT_USAGE_MASK) == USB_ENDPOINT_USAGE_IMPLICIT_FB) | |
537 | fmt->implicit_fb = 1; | |
538 | ||
539 | dev_dbg(&dev->dev, "%d:%d: found sync_ep=0x%x, iface=%d, alt=%d, implicit_fb=%d\n", | |
540 | fmt->iface, fmt->altsetting, fmt->sync_ep, fmt->sync_iface, | |
541 | fmt->sync_altsetting, fmt->implicit_fb); | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | static int set_sync_endpoint(struct snd_usb_substream *subs, | |
547 | struct audioformat *fmt) | |
548 | { | |
549 | struct usb_device *dev = subs->dev; | |
f6581c0e | 550 | struct usb_host_interface *alts; |
d767aba2 | 551 | struct snd_usb_audio *chip = subs->stream->chip; |
f6581c0e TI |
552 | int is_playback = subs->direction == SNDRV_PCM_STREAM_PLAYBACK; |
553 | unsigned int ep; | |
554 | int err; | |
555 | ||
556 | subs->sync_endpoint = NULL; | |
557 | subs->data_endpoint->sync_master = NULL; | |
558 | ||
559 | ep = fmt->sync_ep; | |
560 | if (!ep) | |
561 | return 0; | |
562 | ||
e42a09bc TI |
563 | alts = snd_usb_get_host_interface(subs->stream->chip, fmt->sync_iface, |
564 | fmt->altsetting); | |
f6581c0e TI |
565 | if (!alts) |
566 | return 0; | |
f34d0650 | 567 | |
d767aba2 | 568 | subs->sync_endpoint = snd_usb_get_endpoint(chip, ep); |
395ae54b | 569 | if (!subs->sync_endpoint) { |
f6581c0e TI |
570 | if (is_playback && |
571 | (fmt->ep_attr & USB_ENDPOINT_SYNCTYPE) == USB_ENDPOINT_SYNC_NONE) | |
395ae54b | 572 | return 0; |
f34d0650 | 573 | return -EINVAL; |
395ae54b | 574 | } |
f34d0650 | 575 | |
54cb3190 TI |
576 | subs->sync_endpoint->iface = fmt->sync_iface; |
577 | subs->sync_endpoint->altsetting = fmt->sync_altsetting; | |
f6581c0e | 578 | subs->sync_endpoint->is_implicit_feedback = fmt->implicit_fb; |
10ce77e4 | 579 | |
f34d0650 EZ |
580 | subs->data_endpoint->sync_master = subs->sync_endpoint; |
581 | ||
54cb3190 TI |
582 | snd_usb_endpoint_set_syncinterval(subs->stream->chip, subs->sync_endpoint, alts); |
583 | ||
5fd255f4 TI |
584 | if (!subs->sync_endpoint->use_count && |
585 | (subs->data_endpoint->iface != subs->sync_endpoint->iface || | |
586 | subs->data_endpoint->altsetting != subs->sync_endpoint->altsetting)) { | |
4974b795 TI |
587 | err = usb_set_interface(subs->dev, |
588 | subs->sync_endpoint->iface, | |
589 | subs->sync_endpoint->altsetting); | |
590 | if (err < 0) | |
591 | return err; | |
592 | dev_dbg(&dev->dev, "setting usb interface %d:%d\n", | |
593 | subs->sync_endpoint->iface, | |
594 | subs->sync_endpoint->altsetting); | |
d767aba2 | 595 | snd_usb_set_interface_quirk(chip); |
4974b795 TI |
596 | } |
597 | ||
71bb64c5 EZ |
598 | return 0; |
599 | } | |
600 | ||
601 | /* | |
602 | * find a matching format and set up the interface | |
603 | */ | |
604 | static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) | |
605 | { | |
606 | struct usb_device *dev = subs->dev; | |
d767aba2 | 607 | struct snd_usb_audio *chip = subs->stream->chip; |
71bb64c5 | 608 | struct usb_host_interface *alts; |
71bb64c5 | 609 | struct usb_interface *iface; |
5fd255f4 | 610 | struct snd_usb_endpoint *ep; |
71bb64c5 EZ |
611 | int err; |
612 | ||
613 | iface = usb_ifnum_to_if(dev, fmt->iface); | |
614 | if (WARN_ON(!iface)) | |
615 | return -EINVAL; | |
b099b969 | 616 | alts = usb_altnum_to_altsetting(iface, fmt->altsetting); |
0141254b | 617 | if (WARN_ON(!alts)) |
71bb64c5 EZ |
618 | return -EINVAL; |
619 | ||
92adc96f | 620 | if (fmt == subs->cur_audiofmt && !subs->need_setup_fmt) |
71bb64c5 EZ |
621 | return 0; |
622 | ||
5fd255f4 TI |
623 | /* shared EP with implicit fb */ |
624 | if (fmt->implicit_fb && !subs->need_setup_fmt) { | |
d767aba2 | 625 | ep = snd_usb_get_endpoint(chip, fmt->endpoint); |
5fd255f4 TI |
626 | if (ep && ep->use_count > 0) |
627 | goto add_data_ep; | |
628 | } | |
629 | ||
71bb64c5 | 630 | /* close the old interface */ |
92adc96f | 631 | if (subs->interface >= 0 && (subs->interface != fmt->iface || subs->need_setup_fmt)) { |
98215056 TI |
632 | err = usb_set_interface(subs->dev, subs->interface, 0); |
633 | if (err < 0) { | |
634 | dev_err(&dev->dev, | |
635 | "%d:%d: return to setting 0 failed (%d)\n", | |
636 | fmt->iface, fmt->altsetting, err); | |
637 | return -EIO; | |
71bb64c5 EZ |
638 | } |
639 | subs->interface = -1; | |
640 | subs->altset_idx = 0; | |
641 | } | |
642 | ||
92adc96f HW |
643 | if (subs->need_setup_fmt) |
644 | subs->need_setup_fmt = false; | |
645 | ||
71bb64c5 | 646 | /* set interface */ |
b099b969 | 647 | if (iface->cur_altsetting != alts) { |
d767aba2 | 648 | err = snd_usb_select_mode_quirk(chip, fmt); |
6874daad JK |
649 | if (err < 0) |
650 | return -EIO; | |
651 | ||
71bb64c5 EZ |
652 | err = usb_set_interface(dev, fmt->iface, fmt->altsetting); |
653 | if (err < 0) { | |
0ba41d91 TI |
654 | dev_err(&dev->dev, |
655 | "%d:%d: usb_set_interface failed (%d)\n", | |
656 | fmt->iface, fmt->altsetting, err); | |
71bb64c5 EZ |
657 | return -EIO; |
658 | } | |
0ba41d91 TI |
659 | dev_dbg(&dev->dev, "setting usb interface %d:%d\n", |
660 | fmt->iface, fmt->altsetting); | |
d767aba2 | 661 | snd_usb_set_interface_quirk(chip); |
71bb64c5 EZ |
662 | } |
663 | ||
5fd255f4 TI |
664 | subs->need_setup_ep = true; |
665 | ||
666 | add_data_ep: | |
b099b969 TI |
667 | subs->interface = fmt->iface; |
668 | subs->altset_idx = fmt->altset_idx; | |
d767aba2 | 669 | subs->data_endpoint = snd_usb_get_endpoint(chip, fmt->endpoint); |
71bb64c5 EZ |
670 | if (!subs->data_endpoint) |
671 | return -EINVAL; | |
54cb3190 TI |
672 | subs->data_endpoint->iface = fmt->iface; |
673 | subs->data_endpoint->altsetting = fmt->altsetting; | |
71bb64c5 | 674 | |
f6581c0e | 675 | err = set_sync_endpoint(subs, fmt); |
71bb64c5 EZ |
676 | if (err < 0) |
677 | return err; | |
678 | ||
5fd255f4 | 679 | if (subs->need_setup_ep) { |
73037c8d | 680 | err = snd_usb_init_pitch(chip, fmt); |
5fd255f4 TI |
681 | if (err < 0) |
682 | return err; | |
683 | } | |
e5779998 DM |
684 | |
685 | subs->cur_audiofmt = fmt; | |
686 | ||
687 | snd_usb_set_format_quirk(subs, fmt); | |
688 | ||
e5779998 DM |
689 | return 0; |
690 | } | |
691 | ||
0d9741c0 EZ |
692 | /* |
693 | * Return the score of matching two audioformats. | |
694 | * Veto the audioformat if: | |
695 | * - It has no channels for some reason. | |
696 | * - Requested PCM format is not supported. | |
697 | * - Requested sample rate is not supported. | |
698 | */ | |
0ba41d91 TI |
699 | static int match_endpoint_audioformats(struct snd_usb_substream *subs, |
700 | struct audioformat *fp, | |
701 | struct audioformat *match, int rate, | |
702 | snd_pcm_format_t pcm_format) | |
0d9741c0 EZ |
703 | { |
704 | int i; | |
705 | int score = 0; | |
706 | ||
707 | if (fp->channels < 1) { | |
0ba41d91 TI |
708 | dev_dbg(&subs->dev->dev, |
709 | "%s: (fmt @%p) no channels\n", __func__, fp); | |
0d9741c0 EZ |
710 | return 0; |
711 | } | |
712 | ||
74c34ca1 | 713 | if (!(fp->formats & pcm_format_to_bits(pcm_format))) { |
0ba41d91 TI |
714 | dev_dbg(&subs->dev->dev, |
715 | "%s: (fmt @%p) no match for format %d\n", __func__, | |
0d9741c0 EZ |
716 | fp, pcm_format); |
717 | return 0; | |
718 | } | |
719 | ||
720 | for (i = 0; i < fp->nr_rates; i++) { | |
721 | if (fp->rate_table[i] == rate) { | |
722 | score++; | |
723 | break; | |
724 | } | |
725 | } | |
726 | if (!score) { | |
0ba41d91 TI |
727 | dev_dbg(&subs->dev->dev, |
728 | "%s: (fmt @%p) no match for rate %d\n", __func__, | |
0d9741c0 EZ |
729 | fp, rate); |
730 | return 0; | |
731 | } | |
732 | ||
733 | if (fp->channels == match->channels) | |
734 | score++; | |
735 | ||
0ba41d91 TI |
736 | dev_dbg(&subs->dev->dev, |
737 | "%s: (fmt @%p) score %d\n", __func__, fp, score); | |
0d9741c0 EZ |
738 | |
739 | return score; | |
740 | } | |
741 | ||
742 | /* | |
743 | * Configure the sync ep using the rate and pcm format of the data ep. | |
744 | */ | |
745 | static int configure_sync_endpoint(struct snd_usb_substream *subs) | |
746 | { | |
0d9741c0 EZ |
747 | struct audioformat *fp; |
748 | struct audioformat *sync_fp = NULL; | |
749 | int cur_score = 0; | |
750 | int sync_period_bytes = subs->period_bytes; | |
751 | struct snd_usb_substream *sync_subs = | |
752 | &subs->stream->substream[subs->direction ^ 1]; | |
753 | ||
5a6c3e11 TI |
754 | if (subs->fixed_hw || |
755 | !subs->sync_endpoint->is_implicit_feedback) { | |
756 | sync_fp = subs->cur_audiofmt; | |
757 | goto configure; | |
758 | } | |
759 | ||
760 | sync_fp = find_format(&sync_subs->fmt_list, subs->pcm_format, | |
761 | subs->cur_rate, subs->channels, NULL); | |
762 | if (sync_fp) | |
763 | goto configure; | |
31be5425 | 764 | |
0d9741c0 EZ |
765 | /* Try to find the best matching audioformat. */ |
766 | list_for_each_entry(fp, &sync_subs->fmt_list, list) { | |
0ba41d91 TI |
767 | int score = match_endpoint_audioformats(subs, |
768 | fp, subs->cur_audiofmt, | |
0d9741c0 EZ |
769 | subs->cur_rate, subs->pcm_format); |
770 | ||
771 | if (score > cur_score) { | |
772 | sync_fp = fp; | |
773 | cur_score = score; | |
774 | } | |
775 | } | |
776 | ||
777 | if (unlikely(sync_fp == NULL)) { | |
0ba41d91 TI |
778 | dev_err(&subs->dev->dev, |
779 | "%s: no valid audioformat for sync ep %x found\n", | |
0d9741c0 EZ |
780 | __func__, sync_subs->ep_num); |
781 | return -EINVAL; | |
782 | } | |
783 | ||
784 | /* | |
785 | * Recalculate the period bytes if channel number differ between | |
786 | * data and sync ep audioformat. | |
787 | */ | |
788 | if (sync_fp->channels != subs->channels) { | |
789 | sync_period_bytes = (subs->period_bytes / subs->channels) * | |
790 | sync_fp->channels; | |
0ba41d91 TI |
791 | dev_dbg(&subs->dev->dev, |
792 | "%s: adjusted sync ep period bytes (%d -> %d)\n", | |
0d9741c0 EZ |
793 | __func__, subs->period_bytes, sync_period_bytes); |
794 | } | |
795 | ||
5a6c3e11 TI |
796 | configure: |
797 | return snd_usb_endpoint_set_params(subs->sync_endpoint, | |
798 | subs->pcm_format, | |
799 | sync_fp->channels, | |
800 | sync_period_bytes, | |
801 | subs->period_frames, | |
802 | subs->buffer_periods, | |
803 | subs->cur_rate, | |
804 | sync_fp, | |
805 | NULL); | |
0d9741c0 EZ |
806 | } |
807 | ||
61a70950 DR |
808 | /* |
809 | * configure endpoint params | |
810 | * | |
811 | * called during initial setup and upon resume | |
812 | */ | |
813 | static int configure_endpoint(struct snd_usb_substream *subs) | |
814 | { | |
815 | int ret; | |
816 | ||
61a70950 | 817 | /* format changed */ |
dc5eafe7 TI |
818 | stop_endpoints(subs); |
819 | sync_pending_stops(subs); | |
61a70950 DR |
820 | ret = snd_usb_endpoint_set_params(subs->data_endpoint, |
821 | subs->pcm_format, | |
822 | subs->channels, | |
823 | subs->period_bytes, | |
976b6c06 AS |
824 | subs->period_frames, |
825 | subs->buffer_periods, | |
61a70950 DR |
826 | subs->cur_rate, |
827 | subs->cur_audiofmt, | |
828 | subs->sync_endpoint); | |
829 | if (ret < 0) | |
978520b7 | 830 | return ret; |
61a70950 DR |
831 | |
832 | if (subs->sync_endpoint) | |
0d9741c0 EZ |
833 | ret = configure_sync_endpoint(subs); |
834 | ||
61a70950 DR |
835 | return ret; |
836 | } | |
837 | ||
3f59aa11 JS |
838 | static int snd_usb_pcm_change_state(struct snd_usb_substream *subs, int state) |
839 | { | |
840 | int ret; | |
841 | ||
842 | if (!subs->str_pd) | |
843 | return 0; | |
844 | ||
845 | ret = snd_usb_power_domain_set(subs->stream->chip, subs->str_pd, state); | |
846 | if (ret < 0) { | |
847 | dev_err(&subs->dev->dev, | |
848 | "Cannot change Power Domain ID: %d to state: %d. Err: %d\n", | |
849 | subs->str_pd->pd_id, state, ret); | |
850 | return ret; | |
851 | } | |
852 | ||
853 | return 0; | |
854 | } | |
855 | ||
856 | int snd_usb_pcm_suspend(struct snd_usb_stream *as) | |
857 | { | |
858 | int ret; | |
859 | ||
860 | ret = snd_usb_pcm_change_state(&as->substream[0], UAC3_PD_STATE_D2); | |
861 | if (ret < 0) | |
862 | return ret; | |
863 | ||
864 | ret = snd_usb_pcm_change_state(&as->substream[1], UAC3_PD_STATE_D2); | |
865 | if (ret < 0) | |
866 | return ret; | |
867 | ||
868 | return 0; | |
869 | } | |
870 | ||
871 | int snd_usb_pcm_resume(struct snd_usb_stream *as) | |
872 | { | |
873 | int ret; | |
874 | ||
a0a4959e | 875 | ret = snd_usb_pcm_change_state(&as->substream[0], UAC3_PD_STATE_D1); |
3f59aa11 JS |
876 | if (ret < 0) |
877 | return ret; | |
878 | ||
a0a4959e | 879 | ret = snd_usb_pcm_change_state(&as->substream[1], UAC3_PD_STATE_D1); |
3f59aa11 JS |
880 | if (ret < 0) |
881 | return ret; | |
882 | ||
883 | return 0; | |
884 | } | |
885 | ||
e5779998 DM |
886 | /* |
887 | * hw_params callback | |
888 | * | |
889 | * allocate a buffer and set the given audio format. | |
890 | * | |
891 | * so far we use a physically linear buffer although packetize transfer | |
892 | * doesn't need a continuous area. | |
893 | * if sg buffer is supported on the later version of alsa, we'll follow | |
894 | * that. | |
895 | */ | |
896 | static int snd_usb_hw_params(struct snd_pcm_substream *substream, | |
897 | struct snd_pcm_hw_params *hw_params) | |
898 | { | |
899 | struct snd_usb_substream *subs = substream->runtime->private_data; | |
900 | struct audioformat *fmt; | |
61a70950 | 901 | int ret; |
e5779998 | 902 | |
66354f18 SK |
903 | ret = snd_media_start_pipeline(subs); |
904 | if (ret) | |
905 | return ret; | |
906 | ||
61a70950 DR |
907 | subs->pcm_format = params_format(hw_params); |
908 | subs->period_bytes = params_period_bytes(hw_params); | |
976b6c06 AS |
909 | subs->period_frames = params_period_size(hw_params); |
910 | subs->buffer_periods = params_periods(hw_params); | |
61a70950 DR |
911 | subs->channels = params_channels(hw_params); |
912 | subs->cur_rate = params_rate(hw_params); | |
913 | ||
5a6c3e11 | 914 | fmt = find_substream_format(subs); |
e5779998 | 915 | if (!fmt) { |
0ba41d91 TI |
916 | dev_dbg(&subs->dev->dev, |
917 | "cannot set format: format = %#x, rate = %d, channels = %d\n", | |
61a70950 | 918 | subs->pcm_format, subs->cur_rate, subs->channels); |
66354f18 SK |
919 | ret = -EINVAL; |
920 | goto stop_pipeline; | |
e5779998 DM |
921 | } |
922 | ||
47ab1545 TI |
923 | ret = snd_usb_lock_shutdown(subs->stream->chip); |
924 | if (ret < 0) | |
66354f18 | 925 | goto stop_pipeline; |
a0a4959e JS |
926 | |
927 | ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D0); | |
928 | if (ret < 0) | |
929 | goto unlock; | |
930 | ||
47ab1545 | 931 | ret = set_format(subs, fmt); |
978520b7 | 932 | if (ret < 0) |
a0a4959e | 933 | goto unlock; |
e5779998 | 934 | |
a0a4959e JS |
935 | unlock: |
936 | snd_usb_unlock_shutdown(subs->stream->chip); | |
66354f18 SK |
937 | if (ret < 0) |
938 | goto stop_pipeline; | |
939 | return ret; | |
940 | ||
941 | stop_pipeline: | |
942 | snd_media_stop_pipeline(subs); | |
a0a4959e | 943 | return ret; |
e5779998 DM |
944 | } |
945 | ||
946 | /* | |
947 | * hw_free callback | |
948 | * | |
949 | * reset the audio format and release the buffer | |
950 | */ | |
951 | static int snd_usb_hw_free(struct snd_pcm_substream *substream) | |
952 | { | |
953 | struct snd_usb_substream *subs = substream->runtime->private_data; | |
5a6c3e11 | 954 | struct snd_usb_audio *chip = subs->stream->chip; |
e5779998 | 955 | |
66354f18 | 956 | snd_media_stop_pipeline(subs); |
e5779998 DM |
957 | subs->cur_audiofmt = NULL; |
958 | subs->cur_rate = 0; | |
959 | subs->period_bytes = 0; | |
5a6c3e11 | 960 | if (!snd_usb_lock_shutdown(chip)) { |
dc5eafe7 TI |
961 | stop_endpoints(subs); |
962 | sync_pending_stops(subs); | |
26de5d0a EZ |
963 | snd_usb_endpoint_deactivate(subs->sync_endpoint); |
964 | snd_usb_endpoint_deactivate(subs->data_endpoint); | |
1803503f TI |
965 | if (subs->data_endpoint) { |
966 | subs->data_endpoint->sync_master = NULL; | |
967 | subs->data_endpoint = NULL; | |
968 | } | |
969 | subs->sync_endpoint = NULL; | |
5a6c3e11 | 970 | snd_usb_unlock_shutdown(chip); |
978520b7 | 971 | } |
f274baa4 | 972 | |
6dd9486c | 973 | return 0; |
e5779998 DM |
974 | } |
975 | ||
976 | /* | |
977 | * prepare callback | |
978 | * | |
979 | * only a few subtle things... | |
980 | */ | |
981 | static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) | |
982 | { | |
983 | struct snd_pcm_runtime *runtime = substream->runtime; | |
984 | struct snd_usb_substream *subs = runtime->private_data; | |
61a70950 DR |
985 | struct usb_host_interface *alts; |
986 | struct usb_interface *iface; | |
987 | int ret; | |
e5779998 DM |
988 | |
989 | if (! subs->cur_audiofmt) { | |
0ba41d91 | 990 | dev_err(&subs->dev->dev, "no format is specified!\n"); |
e5779998 DM |
991 | return -ENXIO; |
992 | } | |
993 | ||
47ab1545 TI |
994 | ret = snd_usb_lock_shutdown(subs->stream->chip); |
995 | if (ret < 0) | |
996 | return ret; | |
978520b7 TI |
997 | if (snd_BUG_ON(!subs->data_endpoint)) { |
998 | ret = -EIO; | |
999 | goto unlock; | |
1000 | } | |
edcd3633 | 1001 | |
a0a4959e JS |
1002 | ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D0); |
1003 | if (ret < 0) | |
1004 | goto unlock; | |
1005 | ||
61a70950 DR |
1006 | ret = set_format(subs, subs->cur_audiofmt); |
1007 | if (ret < 0) | |
978520b7 | 1008 | goto unlock; |
61a70950 | 1009 | |
384dc085 | 1010 | if (subs->need_setup_ep) { |
1e2e3fe4 DG |
1011 | |
1012 | iface = usb_ifnum_to_if(subs->dev, subs->cur_audiofmt->iface); | |
1013 | alts = &iface->altsetting[subs->cur_audiofmt->altset_idx]; | |
1014 | ret = snd_usb_init_sample_rate(subs->stream->chip, | |
1e2e3fe4 DG |
1015 | subs->cur_audiofmt, |
1016 | subs->cur_rate); | |
1017 | if (ret < 0) | |
1018 | goto unlock; | |
1019 | ||
384dc085 TI |
1020 | ret = configure_endpoint(subs); |
1021 | if (ret < 0) | |
978520b7 | 1022 | goto unlock; |
384dc085 TI |
1023 | subs->need_setup_ep = false; |
1024 | } | |
61a70950 | 1025 | |
e5779998 | 1026 | /* some unit conversions in runtime */ |
edcd3633 DM |
1027 | subs->data_endpoint->maxframesize = |
1028 | bytes_to_frames(runtime, subs->data_endpoint->maxpacksize); | |
1029 | subs->data_endpoint->curframesize = | |
1030 | bytes_to_frames(runtime, subs->data_endpoint->curpacksize); | |
e5779998 DM |
1031 | |
1032 | /* reset the pointer */ | |
1033 | subs->hwptr_done = 0; | |
1034 | subs->transfer_done = 0; | |
294c4fb8 PLB |
1035 | subs->last_delay = 0; |
1036 | subs->last_frame_number = 0; | |
e5779998 DM |
1037 | runtime->delay = 0; |
1038 | ||
edcd3633 DM |
1039 | /* for playback, submit the URBs now; otherwise, the first hwptr_done |
1040 | * updates for all URBs would happen at the same time when starting */ | |
1041 | if (subs->direction == SNDRV_PCM_STREAM_PLAYBACK) | |
1d0f9530 | 1042 | ret = start_endpoints(subs); |
edcd3633 | 1043 | |
978520b7 | 1044 | unlock: |
47ab1545 | 1045 | snd_usb_unlock_shutdown(subs->stream->chip); |
978520b7 | 1046 | return ret; |
e5779998 DM |
1047 | } |
1048 | ||
7ec827b9 TI |
1049 | /* |
1050 | * h/w constraints | |
1051 | */ | |
1052 | ||
1053 | #ifdef HW_CONST_DEBUG | |
1054 | #define hwc_debug(fmt, args...) pr_debug(fmt, ##args) | |
1055 | #else | |
1056 | #define hwc_debug(fmt, args...) do { } while(0) | |
1057 | #endif | |
1058 | ||
aaffbf78 | 1059 | static const struct snd_pcm_hardware snd_usb_hardware = |
e5779998 DM |
1060 | { |
1061 | .info = SNDRV_PCM_INFO_MMAP | | |
1062 | SNDRV_PCM_INFO_MMAP_VALID | | |
1063 | SNDRV_PCM_INFO_BATCH | | |
1064 | SNDRV_PCM_INFO_INTERLEAVED | | |
1065 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
1066 | SNDRV_PCM_INFO_PAUSE, | |
1067 | .buffer_bytes_max = 1024 * 1024, | |
1068 | .period_bytes_min = 64, | |
1069 | .period_bytes_max = 512 * 1024, | |
1070 | .periods_min = 2, | |
1071 | .periods_max = 1024, | |
1072 | }; | |
1073 | ||
1074 | static int hw_check_valid_format(struct snd_usb_substream *subs, | |
1075 | struct snd_pcm_hw_params *params, | |
1076 | struct audioformat *fp) | |
1077 | { | |
1078 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); | |
1079 | struct snd_interval *ct = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); | |
1080 | struct snd_mask *fmts = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); | |
1081 | struct snd_interval *pt = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_TIME); | |
015eb0b0 | 1082 | struct snd_mask check_fmts; |
e5779998 DM |
1083 | unsigned int ptime; |
1084 | ||
1085 | /* check the format */ | |
015eb0b0 CL |
1086 | snd_mask_none(&check_fmts); |
1087 | check_fmts.bits[0] = (u32)fp->formats; | |
1088 | check_fmts.bits[1] = (u32)(fp->formats >> 32); | |
1089 | snd_mask_intersect(&check_fmts, fmts); | |
1090 | if (snd_mask_empty(&check_fmts)) { | |
e5779998 DM |
1091 | hwc_debug(" > check: no supported format %d\n", fp->format); |
1092 | return 0; | |
1093 | } | |
1094 | /* check the channels */ | |
1095 | if (fp->channels < ct->min || fp->channels > ct->max) { | |
1096 | hwc_debug(" > check: no valid channels %d (%d/%d)\n", fp->channels, ct->min, ct->max); | |
1097 | return 0; | |
1098 | } | |
1099 | /* check the rate is within the range */ | |
1100 | if (fp->rate_min > it->max || (fp->rate_min == it->max && it->openmax)) { | |
1101 | hwc_debug(" > check: rate_min %d > max %d\n", fp->rate_min, it->max); | |
1102 | return 0; | |
1103 | } | |
1104 | if (fp->rate_max < it->min || (fp->rate_max == it->min && it->openmin)) { | |
1105 | hwc_debug(" > check: rate_max %d < min %d\n", fp->rate_max, it->min); | |
1106 | return 0; | |
1107 | } | |
1108 | /* check whether the period time is >= the data packet interval */ | |
978520b7 | 1109 | if (subs->speed != USB_SPEED_FULL) { |
e5779998 DM |
1110 | ptime = 125 * (1 << fp->datainterval); |
1111 | if (ptime > pt->max || (ptime == pt->max && pt->openmax)) { | |
1112 | hwc_debug(" > check: ptime %u > max %u\n", ptime, pt->max); | |
1113 | return 0; | |
1114 | } | |
1115 | } | |
1116 | return 1; | |
1117 | } | |
1118 | ||
7726dce1 TI |
1119 | static int apply_hw_params_minmax(struct snd_interval *it, unsigned int rmin, |
1120 | unsigned int rmax) | |
1121 | { | |
1122 | int changed; | |
1123 | ||
1124 | if (rmin > rmax) { | |
1125 | hwc_debug(" --> get empty\n"); | |
1126 | it->empty = 1; | |
1127 | return -EINVAL; | |
1128 | } | |
1129 | ||
1130 | changed = 0; | |
1131 | if (it->min < rmin) { | |
1132 | it->min = rmin; | |
1133 | it->openmin = 0; | |
1134 | changed = 1; | |
1135 | } | |
1136 | if (it->max > rmax) { | |
1137 | it->max = rmax; | |
1138 | it->openmax = 0; | |
1139 | changed = 1; | |
1140 | } | |
1141 | if (snd_interval_checkempty(it)) { | |
1142 | it->empty = 1; | |
1143 | return -EINVAL; | |
1144 | } | |
1145 | hwc_debug(" --> (%d, %d) (changed = %d)\n", it->min, it->max, changed); | |
1146 | return changed; | |
1147 | } | |
1148 | ||
e5779998 DM |
1149 | static int hw_rule_rate(struct snd_pcm_hw_params *params, |
1150 | struct snd_pcm_hw_rule *rule) | |
1151 | { | |
1152 | struct snd_usb_substream *subs = rule->private; | |
88766f04 | 1153 | struct audioformat *fp; |
e5779998 | 1154 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); |
bc4e94aa | 1155 | unsigned int rmin, rmax, r; |
bc4e94aa | 1156 | int i; |
e5779998 DM |
1157 | |
1158 | hwc_debug("hw_rule_rate: (%d,%d)\n", it->min, it->max); | |
bc4e94aa TI |
1159 | rmin = UINT_MAX; |
1160 | rmax = 0; | |
88766f04 | 1161 | list_for_each_entry(fp, &subs->fmt_list, list) { |
e5779998 DM |
1162 | if (!hw_check_valid_format(subs, params, fp)) |
1163 | continue; | |
bc4e94aa TI |
1164 | if (fp->rate_table && fp->nr_rates) { |
1165 | for (i = 0; i < fp->nr_rates; i++) { | |
1166 | r = fp->rate_table[i]; | |
1167 | if (!snd_interval_test(it, r)) | |
1168 | continue; | |
1169 | rmin = min(rmin, r); | |
1170 | rmax = max(rmax, r); | |
1171 | } | |
e5779998 | 1172 | } else { |
bc4e94aa TI |
1173 | rmin = min(rmin, fp->rate_min); |
1174 | rmax = max(rmax, fp->rate_max); | |
e5779998 DM |
1175 | } |
1176 | } | |
1177 | ||
7726dce1 | 1178 | return apply_hw_params_minmax(it, rmin, rmax); |
e5779998 DM |
1179 | } |
1180 | ||
1181 | ||
1182 | static int hw_rule_channels(struct snd_pcm_hw_params *params, | |
1183 | struct snd_pcm_hw_rule *rule) | |
1184 | { | |
1185 | struct snd_usb_substream *subs = rule->private; | |
88766f04 | 1186 | struct audioformat *fp; |
e5779998 DM |
1187 | struct snd_interval *it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); |
1188 | unsigned int rmin, rmax; | |
e5779998 DM |
1189 | |
1190 | hwc_debug("hw_rule_channels: (%d,%d)\n", it->min, it->max); | |
7726dce1 TI |
1191 | rmin = UINT_MAX; |
1192 | rmax = 0; | |
88766f04 | 1193 | list_for_each_entry(fp, &subs->fmt_list, list) { |
e5779998 DM |
1194 | if (!hw_check_valid_format(subs, params, fp)) |
1195 | continue; | |
7726dce1 TI |
1196 | rmin = min(rmin, fp->channels); |
1197 | rmax = max(rmax, fp->channels); | |
e5779998 DM |
1198 | } |
1199 | ||
7726dce1 | 1200 | return apply_hw_params_minmax(it, rmin, rmax); |
e5779998 DM |
1201 | } |
1202 | ||
1203 | static int hw_rule_format(struct snd_pcm_hw_params *params, | |
1204 | struct snd_pcm_hw_rule *rule) | |
1205 | { | |
1206 | struct snd_usb_substream *subs = rule->private; | |
88766f04 | 1207 | struct audioformat *fp; |
e5779998 DM |
1208 | struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); |
1209 | u64 fbits; | |
1210 | u32 oldbits[2]; | |
1211 | int changed; | |
1212 | ||
1213 | hwc_debug("hw_rule_format: %x:%x\n", fmt->bits[0], fmt->bits[1]); | |
1214 | fbits = 0; | |
88766f04 | 1215 | list_for_each_entry(fp, &subs->fmt_list, list) { |
e5779998 DM |
1216 | if (!hw_check_valid_format(subs, params, fp)) |
1217 | continue; | |
015eb0b0 | 1218 | fbits |= fp->formats; |
e5779998 DM |
1219 | } |
1220 | ||
1221 | oldbits[0] = fmt->bits[0]; | |
1222 | oldbits[1] = fmt->bits[1]; | |
1223 | fmt->bits[0] &= (u32)fbits; | |
1224 | fmt->bits[1] &= (u32)(fbits >> 32); | |
1225 | if (!fmt->bits[0] && !fmt->bits[1]) { | |
1226 | hwc_debug(" --> get empty\n"); | |
1227 | return -EINVAL; | |
1228 | } | |
1229 | changed = (oldbits[0] != fmt->bits[0] || oldbits[1] != fmt->bits[1]); | |
1230 | hwc_debug(" --> %x:%x (changed = %d)\n", fmt->bits[0], fmt->bits[1], changed); | |
1231 | return changed; | |
1232 | } | |
1233 | ||
1234 | static int hw_rule_period_time(struct snd_pcm_hw_params *params, | |
1235 | struct snd_pcm_hw_rule *rule) | |
1236 | { | |
1237 | struct snd_usb_substream *subs = rule->private; | |
1238 | struct audioformat *fp; | |
1239 | struct snd_interval *it; | |
1240 | unsigned char min_datainterval; | |
1241 | unsigned int pmin; | |
e5779998 DM |
1242 | |
1243 | it = hw_param_interval(params, SNDRV_PCM_HW_PARAM_PERIOD_TIME); | |
1244 | hwc_debug("hw_rule_period_time: (%u,%u)\n", it->min, it->max); | |
1245 | min_datainterval = 0xff; | |
1246 | list_for_each_entry(fp, &subs->fmt_list, list) { | |
1247 | if (!hw_check_valid_format(subs, params, fp)) | |
1248 | continue; | |
1249 | min_datainterval = min(min_datainterval, fp->datainterval); | |
1250 | } | |
1251 | if (min_datainterval == 0xff) { | |
a7ce2e0d | 1252 | hwc_debug(" --> get empty\n"); |
e5779998 DM |
1253 | it->empty = 1; |
1254 | return -EINVAL; | |
1255 | } | |
1256 | pmin = 125 * (1 << min_datainterval); | |
7726dce1 TI |
1257 | |
1258 | return apply_hw_params_minmax(it, pmin, UINT_MAX); | |
e5779998 DM |
1259 | } |
1260 | ||
5a6c3e11 TI |
1261 | /* apply PCM hw constraints from the concurrent sync EP */ |
1262 | static int apply_hw_constraint_from_sync(struct snd_pcm_runtime *runtime, | |
1263 | struct snd_usb_substream *subs) | |
1264 | { | |
1265 | struct snd_usb_audio *chip = subs->stream->chip; | |
1266 | struct snd_usb_endpoint *ep; | |
1267 | struct audioformat *fp; | |
1268 | int err; | |
1269 | ||
1270 | subs->fixed_hw = 0; | |
1271 | list_for_each_entry(fp, &subs->fmt_list, list) { | |
54cb3190 | 1272 | ep = snd_usb_get_endpoint(chip, fp->endpoint); |
5a6c3e11 TI |
1273 | if (ep && ep->cur_rate) |
1274 | goto found; | |
1275 | if (!fp->implicit_fb) | |
1276 | continue; | |
1277 | /* for the implicit fb, check the sync ep as well */ | |
54cb3190 | 1278 | ep = snd_usb_get_endpoint(chip, fp->sync_ep); |
5a6c3e11 TI |
1279 | if (ep && ep->cur_rate) |
1280 | goto found; | |
1281 | } | |
1282 | return 0; | |
1283 | ||
1284 | found: | |
1285 | if (!find_format(&subs->fmt_list, ep->cur_format, ep->cur_rate, | |
1286 | ep->cur_channels, NULL)) { | |
1287 | usb_audio_dbg(chip, "EP 0x%x being used, but not applicable\n", | |
1288 | ep->ep_num); | |
1289 | return 0; | |
1290 | } | |
1291 | ||
1292 | usb_audio_dbg(chip, "EP 0x%x being used, using fixed params:\n", | |
1293 | ep->ep_num); | |
1294 | usb_audio_dbg(chip, "rate=%d, format=%s, channels=%d, period_size=%d, periods=%d\n", | |
1295 | ep->cur_rate, snd_pcm_format_name(ep->cur_format), | |
1296 | ep->cur_channels, ep->cur_period_frames, | |
1297 | ep->cur_buffer_periods); | |
1298 | ||
1299 | runtime->hw.formats = pcm_format_to_bits(ep->cur_format); | |
1300 | runtime->hw.rate_min = runtime->hw.rate_max = ep->cur_rate; | |
1301 | runtime->hw.channels_min = runtime->hw.channels_max = | |
1302 | ep->cur_channels; | |
1303 | runtime->hw.rates = SNDRV_PCM_RATE_KNOT; | |
1304 | runtime->hw.periods_min = runtime->hw.periods_max = | |
1305 | ep->cur_buffer_periods; | |
1306 | subs->fixed_hw = 1; | |
1307 | ||
1308 | err = snd_pcm_hw_constraint_minmax(runtime, | |
1309 | SNDRV_PCM_HW_PARAM_PERIOD_SIZE, | |
1310 | ep->cur_period_frames, | |
1311 | ep->cur_period_frames); | |
1312 | if (err < 0) | |
1313 | return err; | |
1314 | ||
1315 | return 1; /* notify the finding */ | |
1316 | } | |
e5779998 DM |
1317 | |
1318 | /* | |
1319 | * set up the runtime hardware information. | |
1320 | */ | |
1321 | ||
1322 | static int setup_hw_info(struct snd_pcm_runtime *runtime, struct snd_usb_substream *subs) | |
1323 | { | |
5a6c3e11 | 1324 | struct snd_usb_audio *chip = subs->stream->chip; |
88766f04 | 1325 | struct audioformat *fp; |
e5779998 | 1326 | unsigned int pt, ptmin; |
5a6c3e11 | 1327 | int param_period_time_if_needed = -1; |
e5779998 DM |
1328 | int err; |
1329 | ||
5a6c3e11 TI |
1330 | mutex_lock(&chip->mutex); |
1331 | err = apply_hw_constraint_from_sync(runtime, subs); | |
1332 | mutex_unlock(&chip->mutex); | |
1333 | if (err < 0) | |
1334 | return err; | |
1335 | if (err > 0) /* found the matching? */ | |
1336 | goto add_extra_rules; | |
1337 | ||
e5779998 DM |
1338 | runtime->hw.formats = subs->formats; |
1339 | ||
1340 | runtime->hw.rate_min = 0x7fffffff; | |
1341 | runtime->hw.rate_max = 0; | |
1342 | runtime->hw.channels_min = 256; | |
1343 | runtime->hw.channels_max = 0; | |
1344 | runtime->hw.rates = 0; | |
1345 | ptmin = UINT_MAX; | |
1346 | /* check min/max rates and channels */ | |
88766f04 | 1347 | list_for_each_entry(fp, &subs->fmt_list, list) { |
e5779998 DM |
1348 | runtime->hw.rates |= fp->rates; |
1349 | if (runtime->hw.rate_min > fp->rate_min) | |
1350 | runtime->hw.rate_min = fp->rate_min; | |
1351 | if (runtime->hw.rate_max < fp->rate_max) | |
1352 | runtime->hw.rate_max = fp->rate_max; | |
1353 | if (runtime->hw.channels_min > fp->channels) | |
1354 | runtime->hw.channels_min = fp->channels; | |
1355 | if (runtime->hw.channels_max < fp->channels) | |
1356 | runtime->hw.channels_max = fp->channels; | |
1357 | if (fp->fmt_type == UAC_FORMAT_TYPE_II && fp->frame_size > 0) { | |
1358 | /* FIXME: there might be more than one audio formats... */ | |
1359 | runtime->hw.period_bytes_min = runtime->hw.period_bytes_max = | |
1360 | fp->frame_size; | |
1361 | } | |
1362 | pt = 125 * (1 << fp->datainterval); | |
1363 | ptmin = min(ptmin, pt); | |
1364 | } | |
1365 | ||
1366 | param_period_time_if_needed = SNDRV_PCM_HW_PARAM_PERIOD_TIME; | |
978520b7 | 1367 | if (subs->speed == USB_SPEED_FULL) |
e5779998 DM |
1368 | /* full speed devices have fixed data packet interval */ |
1369 | ptmin = 1000; | |
1370 | if (ptmin == 1000) | |
1371 | /* if period time doesn't go below 1 ms, no rules needed */ | |
1372 | param_period_time_if_needed = -1; | |
e92be814 TI |
1373 | |
1374 | err = snd_pcm_hw_constraint_minmax(runtime, | |
1375 | SNDRV_PCM_HW_PARAM_PERIOD_TIME, | |
1376 | ptmin, UINT_MAX); | |
1377 | if (err < 0) | |
1378 | return err; | |
1379 | ||
1380 | err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, | |
1381 | hw_rule_rate, subs, | |
1382 | SNDRV_PCM_HW_PARAM_FORMAT, | |
1383 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
1384 | param_period_time_if_needed, | |
1385 | -1); | |
1386 | if (err < 0) | |
1387 | return err; | |
5a6c3e11 TI |
1388 | |
1389 | add_extra_rules: | |
e92be814 TI |
1390 | err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, |
1391 | hw_rule_channels, subs, | |
1392 | SNDRV_PCM_HW_PARAM_FORMAT, | |
1393 | SNDRV_PCM_HW_PARAM_RATE, | |
1394 | param_period_time_if_needed, | |
1395 | -1); | |
1396 | if (err < 0) | |
1397 | return err; | |
1398 | err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, | |
1399 | hw_rule_format, subs, | |
1400 | SNDRV_PCM_HW_PARAM_RATE, | |
1401 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
1402 | param_period_time_if_needed, | |
1403 | -1); | |
1404 | if (err < 0) | |
1405 | return err; | |
e5779998 DM |
1406 | if (param_period_time_if_needed >= 0) { |
1407 | err = snd_pcm_hw_rule_add(runtime, 0, | |
1408 | SNDRV_PCM_HW_PARAM_PERIOD_TIME, | |
1409 | hw_rule_period_time, subs, | |
1410 | SNDRV_PCM_HW_PARAM_FORMAT, | |
1411 | SNDRV_PCM_HW_PARAM_CHANNELS, | |
1412 | SNDRV_PCM_HW_PARAM_RATE, | |
1413 | -1); | |
1414 | if (err < 0) | |
e92be814 | 1415 | return err; |
e5779998 | 1416 | } |
88a8516a | 1417 | |
1865211d | 1418 | return 0; |
e5779998 DM |
1419 | } |
1420 | ||
6fddc797 | 1421 | static int snd_usb_pcm_open(struct snd_pcm_substream *substream) |
e5779998 | 1422 | { |
6fddc797 | 1423 | int direction = substream->stream; |
e5779998 DM |
1424 | struct snd_usb_stream *as = snd_pcm_substream_chip(substream); |
1425 | struct snd_pcm_runtime *runtime = substream->runtime; | |
1426 | struct snd_usb_substream *subs = &as->substream[direction]; | |
66354f18 | 1427 | int ret; |
e5779998 DM |
1428 | |
1429 | subs->interface = -1; | |
e11b4e0e | 1430 | subs->altset_idx = 0; |
e5779998 DM |
1431 | runtime->hw = snd_usb_hardware; |
1432 | runtime->private_data = subs; | |
1433 | subs->pcm_substream = substream; | |
88a8516a | 1434 | /* runtime PM is also done there */ |
d24f5061 DM |
1435 | |
1436 | /* initialize DSD/DOP context */ | |
1437 | subs->dsd_dop.byte_idx = 0; | |
1438 | subs->dsd_dop.channel = 0; | |
1439 | subs->dsd_dop.marker = 1; | |
1440 | ||
66354f18 | 1441 | ret = setup_hw_info(runtime, subs); |
1865211d TI |
1442 | if (ret < 0) |
1443 | return ret; | |
1444 | ret = snd_usb_autoresume(subs->stream->chip); | |
1445 | if (ret < 0) | |
1446 | return ret; | |
1447 | ret = snd_media_stream_init(subs, as->pcm, direction); | |
1448 | if (ret < 0) | |
1449 | snd_usb_autosuspend(subs->stream->chip); | |
66354f18 | 1450 | return ret; |
e5779998 DM |
1451 | } |
1452 | ||
6fddc797 | 1453 | static int snd_usb_pcm_close(struct snd_pcm_substream *substream) |
e5779998 | 1454 | { |
6fddc797 | 1455 | int direction = substream->stream; |
e5779998 DM |
1456 | struct snd_usb_stream *as = snd_pcm_substream_chip(substream); |
1457 | struct snd_usb_substream *subs = &as->substream[direction]; | |
a0a4959e | 1458 | int ret; |
e5779998 | 1459 | |
66354f18 | 1460 | snd_media_stop_pipeline(subs); |
68e67f40 | 1461 | |
98215056 | 1462 | if (subs->interface >= 0 && |
47ab1545 | 1463 | !snd_usb_lock_shutdown(subs->stream->chip)) { |
68e67f40 DM |
1464 | usb_set_interface(subs->dev, subs->interface, 0); |
1465 | subs->interface = -1; | |
a0a4959e | 1466 | ret = snd_usb_pcm_change_state(subs, UAC3_PD_STATE_D1); |
47ab1545 | 1467 | snd_usb_unlock_shutdown(subs->stream->chip); |
a0a4959e JS |
1468 | if (ret < 0) |
1469 | return ret; | |
68e67f40 DM |
1470 | } |
1471 | ||
e5779998 | 1472 | subs->pcm_substream = NULL; |
88a8516a | 1473 | snd_usb_autosuspend(subs->stream->chip); |
edcd3633 | 1474 | |
68e67f40 | 1475 | return 0; |
edcd3633 DM |
1476 | } |
1477 | ||
1478 | /* Since a URB can handle only a single linear buffer, we must use double | |
1479 | * buffering when the data to be transferred overflows the buffer boundary. | |
1480 | * To avoid inconsistencies when updating hwptr_done, we use double buffering | |
1481 | * for all URBs. | |
1482 | */ | |
1483 | static void retire_capture_urb(struct snd_usb_substream *subs, | |
1484 | struct urb *urb) | |
1485 | { | |
1486 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; | |
1487 | unsigned int stride, frames, bytes, oldptr; | |
1488 | int i, period_elapsed = 0; | |
1489 | unsigned long flags; | |
1490 | unsigned char *cp; | |
e4cc6153 PLB |
1491 | int current_frame_number; |
1492 | ||
1493 | /* read frame number here, update pointer in critical section */ | |
1494 | current_frame_number = usb_get_current_frame_number(subs->dev); | |
edcd3633 DM |
1495 | |
1496 | stride = runtime->frame_bits >> 3; | |
1497 | ||
1498 | for (i = 0; i < urb->number_of_packets; i++) { | |
1539d4f8 | 1499 | cp = (unsigned char *)urb->transfer_buffer + urb->iso_frame_desc[i].offset + subs->pkt_offset_adj; |
edcd3633 | 1500 | if (urb->iso_frame_desc[i].status && printk_ratelimit()) { |
0ba41d91 TI |
1501 | dev_dbg(&subs->dev->dev, "frame %d active: %d\n", |
1502 | i, urb->iso_frame_desc[i].status); | |
edcd3633 DM |
1503 | // continue; |
1504 | } | |
1505 | bytes = urb->iso_frame_desc[i].actual_length; | |
1b7ecc24 HM |
1506 | if (subs->stream_offset_adj > 0) { |
1507 | unsigned int adj = min(subs->stream_offset_adj, bytes); | |
1508 | cp += adj; | |
1509 | bytes -= adj; | |
1510 | subs->stream_offset_adj -= adj; | |
1511 | } | |
edcd3633 DM |
1512 | frames = bytes / stride; |
1513 | if (!subs->txfr_quirk) | |
1514 | bytes = frames * stride; | |
1515 | if (bytes % (runtime->sample_bits >> 3) != 0) { | |
edcd3633 | 1516 | int oldbytes = bytes; |
edcd3633 | 1517 | bytes = frames * stride; |
377a879d | 1518 | dev_warn_ratelimited(&subs->dev->dev, |
0ba41d91 | 1519 | "Corrected urb data len. %d->%d\n", |
edcd3633 DM |
1520 | oldbytes, bytes); |
1521 | } | |
1522 | /* update the current pointer */ | |
1523 | spin_lock_irqsave(&subs->lock, flags); | |
1524 | oldptr = subs->hwptr_done; | |
1525 | subs->hwptr_done += bytes; | |
1526 | if (subs->hwptr_done >= runtime->buffer_size * stride) | |
1527 | subs->hwptr_done -= runtime->buffer_size * stride; | |
1528 | frames = (bytes + (oldptr % stride)) / stride; | |
1529 | subs->transfer_done += frames; | |
1530 | if (subs->transfer_done >= runtime->period_size) { | |
1531 | subs->transfer_done -= runtime->period_size; | |
1532 | period_elapsed = 1; | |
1533 | } | |
e4cc6153 PLB |
1534 | /* capture delay is by construction limited to one URB, |
1535 | * reset delays here | |
1536 | */ | |
1537 | runtime->delay = subs->last_delay = 0; | |
1538 | ||
1539 | /* realign last_frame_number */ | |
1540 | subs->last_frame_number = current_frame_number; | |
1541 | subs->last_frame_number &= 0xFF; /* keep 8 LSBs */ | |
1542 | ||
edcd3633 DM |
1543 | spin_unlock_irqrestore(&subs->lock, flags); |
1544 | /* copy a data chunk */ | |
1545 | if (oldptr + bytes > runtime->buffer_size * stride) { | |
1546 | unsigned int bytes1 = | |
1547 | runtime->buffer_size * stride - oldptr; | |
1548 | memcpy(runtime->dma_area + oldptr, cp, bytes1); | |
1549 | memcpy(runtime->dma_area, cp + bytes1, bytes - bytes1); | |
1550 | } else { | |
1551 | memcpy(runtime->dma_area + oldptr, cp, bytes); | |
1552 | } | |
1553 | } | |
1554 | ||
1555 | if (period_elapsed) | |
1556 | snd_pcm_period_elapsed(subs->pcm_substream); | |
1557 | } | |
1558 | ||
d24f5061 DM |
1559 | static inline void fill_playback_urb_dsd_dop(struct snd_usb_substream *subs, |
1560 | struct urb *urb, unsigned int bytes) | |
1561 | { | |
1562 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; | |
1563 | unsigned int stride = runtime->frame_bits >> 3; | |
1564 | unsigned int dst_idx = 0; | |
1565 | unsigned int src_idx = subs->hwptr_done; | |
1566 | unsigned int wrap = runtime->buffer_size * stride; | |
1567 | u8 *dst = urb->transfer_buffer; | |
1568 | u8 *src = runtime->dma_area; | |
1569 | u8 marker[] = { 0x05, 0xfa }; | |
1570 | ||
1571 | /* | |
1572 | * The DSP DOP format defines a way to transport DSD samples over | |
1573 | * normal PCM data endpoints. It requires stuffing of marker bytes | |
1574 | * (0x05 and 0xfa, alternating per sample frame), and then expects | |
1575 | * 2 additional bytes of actual payload. The whole frame is stored | |
1576 | * LSB. | |
1577 | * | |
1578 | * Hence, for a stereo transport, the buffer layout looks like this, | |
1579 | * where L refers to left channel samples and R to right. | |
1580 | * | |
1581 | * L1 L2 0x05 R1 R2 0x05 L3 L4 0xfa R3 R4 0xfa | |
1582 | * L5 L6 0x05 R5 R6 0x05 L7 L8 0xfa R7 R8 0xfa | |
1583 | * ..... | |
1584 | * | |
1585 | */ | |
1586 | ||
1587 | while (bytes--) { | |
1588 | if (++subs->dsd_dop.byte_idx == 3) { | |
1589 | /* frame boundary? */ | |
1590 | dst[dst_idx++] = marker[subs->dsd_dop.marker]; | |
1591 | src_idx += 2; | |
1592 | subs->dsd_dop.byte_idx = 0; | |
1593 | ||
1594 | if (++subs->dsd_dop.channel % runtime->channels == 0) { | |
1595 | /* alternate the marker */ | |
1596 | subs->dsd_dop.marker++; | |
1597 | subs->dsd_dop.marker %= ARRAY_SIZE(marker); | |
1598 | subs->dsd_dop.channel = 0; | |
1599 | } | |
1600 | } else { | |
1601 | /* stuff the DSD payload */ | |
1602 | int idx = (src_idx + subs->dsd_dop.byte_idx - 1) % wrap; | |
44dcbbb1 DM |
1603 | |
1604 | if (subs->cur_audiofmt->dsd_bitrev) | |
1605 | dst[dst_idx++] = bitrev8(src[idx]); | |
1606 | else | |
1607 | dst[dst_idx++] = src[idx]; | |
1608 | ||
d24f5061 DM |
1609 | subs->hwptr_done++; |
1610 | } | |
1611 | } | |
4c4e4391 RW |
1612 | if (subs->hwptr_done >= runtime->buffer_size * stride) |
1613 | subs->hwptr_done -= runtime->buffer_size * stride; | |
d24f5061 DM |
1614 | } |
1615 | ||
b97a9369 RW |
1616 | static void copy_to_urb(struct snd_usb_substream *subs, struct urb *urb, |
1617 | int offset, int stride, unsigned int bytes) | |
07a40c2f RW |
1618 | { |
1619 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; | |
1620 | ||
1621 | if (subs->hwptr_done + bytes > runtime->buffer_size * stride) { | |
1622 | /* err, the transferred area goes over buffer boundary. */ | |
1623 | unsigned int bytes1 = | |
1624 | runtime->buffer_size * stride - subs->hwptr_done; | |
b97a9369 | 1625 | memcpy(urb->transfer_buffer + offset, |
07a40c2f | 1626 | runtime->dma_area + subs->hwptr_done, bytes1); |
b97a9369 | 1627 | memcpy(urb->transfer_buffer + offset + bytes1, |
07a40c2f RW |
1628 | runtime->dma_area, bytes - bytes1); |
1629 | } else { | |
b97a9369 | 1630 | memcpy(urb->transfer_buffer + offset, |
07a40c2f RW |
1631 | runtime->dma_area + subs->hwptr_done, bytes); |
1632 | } | |
1633 | subs->hwptr_done += bytes; | |
4c4e4391 RW |
1634 | if (subs->hwptr_done >= runtime->buffer_size * stride) |
1635 | subs->hwptr_done -= runtime->buffer_size * stride; | |
07a40c2f RW |
1636 | } |
1637 | ||
e0570446 RW |
1638 | static unsigned int copy_to_urb_quirk(struct snd_usb_substream *subs, |
1639 | struct urb *urb, int stride, | |
1640 | unsigned int bytes) | |
1641 | { | |
1642 | __le32 packet_length; | |
1643 | int i; | |
1644 | ||
1645 | /* Put __le32 length descriptor at start of each packet. */ | |
1646 | for (i = 0; i < urb->number_of_packets; i++) { | |
1647 | unsigned int length = urb->iso_frame_desc[i].length; | |
1648 | unsigned int offset = urb->iso_frame_desc[i].offset; | |
1649 | ||
1650 | packet_length = cpu_to_le32(length); | |
1651 | offset += i * sizeof(packet_length); | |
1652 | urb->iso_frame_desc[i].offset = offset; | |
1653 | urb->iso_frame_desc[i].length += sizeof(packet_length); | |
1654 | memcpy(urb->transfer_buffer + offset, | |
1655 | &packet_length, sizeof(packet_length)); | |
1656 | copy_to_urb(subs, urb, offset + sizeof(packet_length), | |
1657 | stride, length); | |
1658 | } | |
1659 | /* Adjust transfer size accordingly. */ | |
1660 | bytes += urb->number_of_packets * sizeof(packet_length); | |
1661 | return bytes; | |
1662 | } | |
1663 | ||
edcd3633 DM |
1664 | static void prepare_playback_urb(struct snd_usb_substream *subs, |
1665 | struct urb *urb) | |
1666 | { | |
1667 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; | |
245baf98 | 1668 | struct snd_usb_endpoint *ep = subs->data_endpoint; |
edcd3633 DM |
1669 | struct snd_urb_ctx *ctx = urb->context; |
1670 | unsigned int counts, frames, bytes; | |
1671 | int i, stride, period_elapsed = 0; | |
1672 | unsigned long flags; | |
1673 | ||
1674 | stride = runtime->frame_bits >> 3; | |
1675 | ||
1676 | frames = 0; | |
1677 | urb->number_of_packets = 0; | |
1678 | spin_lock_irqsave(&subs->lock, flags); | |
976b6c06 | 1679 | subs->frame_limit += ep->max_urb_frames; |
edcd3633 | 1680 | for (i = 0; i < ctx->packets; i++) { |
245baf98 DM |
1681 | if (ctx->packet_size[i]) |
1682 | counts = ctx->packet_size[i]; | |
f0bd62b6 AT |
1683 | else if (ep->sync_master) |
1684 | counts = snd_usb_endpoint_slave_next_packet_size(ep); | |
245baf98 DM |
1685 | else |
1686 | counts = snd_usb_endpoint_next_packet_size(ep); | |
1687 | ||
edcd3633 | 1688 | /* set up descriptor */ |
8a2a74d2 DM |
1689 | urb->iso_frame_desc[i].offset = frames * ep->stride; |
1690 | urb->iso_frame_desc[i].length = counts * ep->stride; | |
edcd3633 DM |
1691 | frames += counts; |
1692 | urb->number_of_packets++; | |
1693 | subs->transfer_done += counts; | |
1694 | if (subs->transfer_done >= runtime->period_size) { | |
1695 | subs->transfer_done -= runtime->period_size; | |
976b6c06 | 1696 | subs->frame_limit = 0; |
edcd3633 DM |
1697 | period_elapsed = 1; |
1698 | if (subs->fmt_type == UAC_FORMAT_TYPE_II) { | |
1699 | if (subs->transfer_done > 0) { | |
1700 | /* FIXME: fill-max mode is not | |
1701 | * supported yet */ | |
1702 | frames -= subs->transfer_done; | |
1703 | counts -= subs->transfer_done; | |
1704 | urb->iso_frame_desc[i].length = | |
8a2a74d2 | 1705 | counts * ep->stride; |
edcd3633 DM |
1706 | subs->transfer_done = 0; |
1707 | } | |
1708 | i++; | |
1709 | if (i < ctx->packets) { | |
1710 | /* add a transfer delimiter */ | |
1711 | urb->iso_frame_desc[i].offset = | |
8a2a74d2 | 1712 | frames * ep->stride; |
edcd3633 DM |
1713 | urb->iso_frame_desc[i].length = 0; |
1714 | urb->number_of_packets++; | |
1715 | } | |
1716 | break; | |
1717 | } | |
1718 | } | |
976b6c06 AS |
1719 | /* finish at the period boundary or after enough frames */ |
1720 | if ((period_elapsed || | |
1721 | subs->transfer_done >= subs->frame_limit) && | |
1722 | !snd_usb_endpoint_implicit_feedback_sink(ep)) | |
edcd3633 DM |
1723 | break; |
1724 | } | |
8a2a74d2 | 1725 | bytes = frames * ep->stride; |
d24f5061 DM |
1726 | |
1727 | if (unlikely(subs->pcm_format == SNDRV_PCM_FORMAT_DSD_U16_LE && | |
1728 | subs->cur_audiofmt->dsd_dop)) { | |
1729 | fill_playback_urb_dsd_dop(subs, urb, bytes); | |
44dcbbb1 DM |
1730 | } else if (unlikely(subs->pcm_format == SNDRV_PCM_FORMAT_DSD_U8 && |
1731 | subs->cur_audiofmt->dsd_bitrev)) { | |
1732 | /* bit-reverse the bytes */ | |
1733 | u8 *buf = urb->transfer_buffer; | |
1734 | for (i = 0; i < bytes; i++) { | |
1735 | int idx = (subs->hwptr_done + i) | |
1736 | % (runtime->buffer_size * stride); | |
1737 | buf[i] = bitrev8(runtime->dma_area[idx]); | |
1738 | } | |
1739 | ||
1740 | subs->hwptr_done += bytes; | |
4c4e4391 RW |
1741 | if (subs->hwptr_done >= runtime->buffer_size * stride) |
1742 | subs->hwptr_done -= runtime->buffer_size * stride; | |
edcd3633 | 1743 | } else { |
d24f5061 | 1744 | /* usual PCM */ |
e0570446 RW |
1745 | if (!subs->tx_length_quirk) |
1746 | copy_to_urb(subs, urb, 0, stride, bytes); | |
1747 | else | |
1748 | bytes = copy_to_urb_quirk(subs, urb, stride, bytes); | |
1749 | /* bytes is now amount of outgoing data */ | |
edcd3633 | 1750 | } |
d24f5061 | 1751 | |
fbcfbf5f DM |
1752 | /* update delay with exact number of samples queued */ |
1753 | runtime->delay = subs->last_delay; | |
edcd3633 | 1754 | runtime->delay += frames; |
fbcfbf5f DM |
1755 | subs->last_delay = runtime->delay; |
1756 | ||
1757 | /* realign last_frame_number */ | |
1758 | subs->last_frame_number = usb_get_current_frame_number(subs->dev); | |
1759 | subs->last_frame_number &= 0xFF; /* keep 8 LSBs */ | |
1760 | ||
ea33d359 PLB |
1761 | if (subs->trigger_tstamp_pending_update) { |
1762 | /* this is the first actual URB submitted, | |
1763 | * update trigger timestamp to reflect actual start time | |
1764 | */ | |
1765 | snd_pcm_gettime(runtime, &runtime->trigger_tstamp); | |
1766 | subs->trigger_tstamp_pending_update = false; | |
1767 | } | |
1768 | ||
edcd3633 DM |
1769 | spin_unlock_irqrestore(&subs->lock, flags); |
1770 | urb->transfer_buffer_length = bytes; | |
1771 | if (period_elapsed) | |
1772 | snd_pcm_period_elapsed(subs->pcm_substream); | |
1773 | } | |
1774 | ||
1775 | /* | |
1776 | * process after playback data complete | |
1777 | * - decrease the delay count again | |
1778 | */ | |
1779 | static void retire_playback_urb(struct snd_usb_substream *subs, | |
1780 | struct urb *urb) | |
1781 | { | |
1782 | unsigned long flags; | |
1783 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; | |
8a2a74d2 DM |
1784 | struct snd_usb_endpoint *ep = subs->data_endpoint; |
1785 | int processed = urb->transfer_buffer_length / ep->stride; | |
fbcfbf5f | 1786 | int est_delay; |
edcd3633 | 1787 | |
5ff40e6d AT |
1788 | /* ignore the delay accounting when processed=0 is given, i.e. |
1789 | * silent payloads are processed before handling the actual data | |
1213a205 TI |
1790 | */ |
1791 | if (!processed) | |
1792 | return; | |
1793 | ||
edcd3633 | 1794 | spin_lock_irqsave(&subs->lock, flags); |
48779a0b TI |
1795 | if (!subs->last_delay) |
1796 | goto out; /* short path */ | |
1797 | ||
fbcfbf5f DM |
1798 | est_delay = snd_usb_pcm_delay(subs, runtime->rate); |
1799 | /* update delay with exact number of samples played */ | |
1800 | if (processed > subs->last_delay) | |
1801 | subs->last_delay = 0; | |
edcd3633 | 1802 | else |
fbcfbf5f DM |
1803 | subs->last_delay -= processed; |
1804 | runtime->delay = subs->last_delay; | |
1805 | ||
1806 | /* | |
1807 | * Report when delay estimate is off by more than 2ms. | |
1808 | * The error should be lower than 2ms since the estimate relies | |
1809 | * on two reads of a counter updated every ms. | |
1810 | */ | |
b7a77235 SE |
1811 | if (abs(est_delay - subs->last_delay) * 1000 > runtime->rate * 2) |
1812 | dev_dbg_ratelimited(&subs->dev->dev, | |
0ba41d91 | 1813 | "delay: estimated %d, actual %d\n", |
fbcfbf5f DM |
1814 | est_delay, subs->last_delay); |
1815 | ||
48779a0b TI |
1816 | if (!subs->running) { |
1817 | /* update last_frame_number for delay counting here since | |
1818 | * prepare_playback_urb won't be called during pause | |
1819 | */ | |
1820 | subs->last_frame_number = | |
1821 | usb_get_current_frame_number(subs->dev) & 0xff; | |
1822 | } | |
1823 | ||
1824 | out: | |
edcd3633 | 1825 | spin_unlock_irqrestore(&subs->lock, flags); |
e5779998 DM |
1826 | } |
1827 | ||
edcd3633 DM |
1828 | static int snd_usb_substream_playback_trigger(struct snd_pcm_substream *substream, |
1829 | int cmd) | |
1830 | { | |
1831 | struct snd_usb_substream *subs = substream->runtime->private_data; | |
1832 | ||
1833 | switch (cmd) { | |
1834 | case SNDRV_PCM_TRIGGER_START: | |
ea33d359 | 1835 | subs->trigger_tstamp_pending_update = true; |
c0dbbdad | 1836 | fallthrough; |
edcd3633 DM |
1837 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: |
1838 | subs->data_endpoint->prepare_data_urb = prepare_playback_urb; | |
1839 | subs->data_endpoint->retire_data_urb = retire_playback_urb; | |
97f8d3b6 | 1840 | subs->running = 1; |
edcd3633 DM |
1841 | return 0; |
1842 | case SNDRV_PCM_TRIGGER_STOP: | |
dc5eafe7 | 1843 | stop_endpoints(subs); |
97f8d3b6 | 1844 | subs->running = 0; |
edcd3633 DM |
1845 | return 0; |
1846 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1847 | subs->data_endpoint->prepare_data_urb = NULL; | |
48779a0b TI |
1848 | /* keep retire_data_urb for delay calculation */ |
1849 | subs->data_endpoint->retire_data_urb = retire_playback_urb; | |
97f8d3b6 | 1850 | subs->running = 0; |
edcd3633 | 1851 | return 0; |
92adc96f HW |
1852 | case SNDRV_PCM_TRIGGER_SUSPEND: |
1853 | if (subs->stream->chip->setup_fmt_after_resume_quirk) { | |
a032ff0e | 1854 | stop_endpoints(subs); |
92adc96f HW |
1855 | subs->need_setup_fmt = true; |
1856 | return 0; | |
1857 | } | |
1858 | break; | |
edcd3633 DM |
1859 | } |
1860 | ||
1861 | return -EINVAL; | |
1862 | } | |
1863 | ||
afe25967 DM |
1864 | static int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream, |
1865 | int cmd) | |
edcd3633 DM |
1866 | { |
1867 | int err; | |
1868 | struct snd_usb_substream *subs = substream->runtime->private_data; | |
1869 | ||
1870 | switch (cmd) { | |
1871 | case SNDRV_PCM_TRIGGER_START: | |
1d0f9530 | 1872 | err = start_endpoints(subs); |
edcd3633 DM |
1873 | if (err < 0) |
1874 | return err; | |
1875 | ||
1876 | subs->data_endpoint->retire_data_urb = retire_capture_urb; | |
97f8d3b6 | 1877 | subs->running = 1; |
edcd3633 DM |
1878 | return 0; |
1879 | case SNDRV_PCM_TRIGGER_STOP: | |
dc5eafe7 | 1880 | stop_endpoints(subs); |
ff58bbc7 | 1881 | subs->data_endpoint->retire_data_urb = NULL; |
97f8d3b6 | 1882 | subs->running = 0; |
edcd3633 DM |
1883 | return 0; |
1884 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
1885 | subs->data_endpoint->retire_data_urb = NULL; | |
97f8d3b6 | 1886 | subs->running = 0; |
edcd3633 DM |
1887 | return 0; |
1888 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
1889 | subs->data_endpoint->retire_data_urb = retire_capture_urb; | |
97f8d3b6 | 1890 | subs->running = 1; |
edcd3633 | 1891 | return 0; |
92adc96f HW |
1892 | case SNDRV_PCM_TRIGGER_SUSPEND: |
1893 | if (subs->stream->chip->setup_fmt_after_resume_quirk) { | |
a032ff0e | 1894 | stop_endpoints(subs); |
92adc96f HW |
1895 | subs->need_setup_fmt = true; |
1896 | return 0; | |
1897 | } | |
1898 | break; | |
edcd3633 DM |
1899 | } |
1900 | ||
1901 | return -EINVAL; | |
1902 | } | |
1903 | ||
31cb1fb4 | 1904 | static const struct snd_pcm_ops snd_usb_playback_ops = { |
6fddc797 TI |
1905 | .open = snd_usb_pcm_open, |
1906 | .close = snd_usb_pcm_close, | |
e5779998 DM |
1907 | .hw_params = snd_usb_hw_params, |
1908 | .hw_free = snd_usb_hw_free, | |
1909 | .prepare = snd_usb_pcm_prepare, | |
1910 | .trigger = snd_usb_substream_playback_trigger, | |
dc5eafe7 | 1911 | .sync_stop = snd_usb_pcm_sync_stop, |
e5779998 | 1912 | .pointer = snd_usb_pcm_pointer, |
e5779998 DM |
1913 | }; |
1914 | ||
31cb1fb4 | 1915 | static const struct snd_pcm_ops snd_usb_capture_ops = { |
6fddc797 TI |
1916 | .open = snd_usb_pcm_open, |
1917 | .close = snd_usb_pcm_close, | |
e5779998 DM |
1918 | .hw_params = snd_usb_hw_params, |
1919 | .hw_free = snd_usb_hw_free, | |
1920 | .prepare = snd_usb_pcm_prepare, | |
1921 | .trigger = snd_usb_substream_capture_trigger, | |
dc5eafe7 | 1922 | .sync_stop = snd_usb_pcm_sync_stop, |
e5779998 | 1923 | .pointer = snd_usb_pcm_pointer, |
f274baa4 TI |
1924 | }; |
1925 | ||
e5779998 DM |
1926 | void snd_usb_set_pcm_ops(struct snd_pcm *pcm, int stream) |
1927 | { | |
f274baa4 TI |
1928 | const struct snd_pcm_ops *ops; |
1929 | ||
b315997d | 1930 | ops = stream == SNDRV_PCM_STREAM_PLAYBACK ? |
f274baa4 | 1931 | &snd_usb_playback_ops : &snd_usb_capture_ops; |
f274baa4 TI |
1932 | snd_pcm_set_ops(pcm, stream, ops); |
1933 | } | |
1934 | ||
1935 | void snd_usb_preallocate_buffer(struct snd_usb_substream *subs) | |
1936 | { | |
1937 | struct snd_pcm *pcm = subs->stream->pcm; | |
1938 | struct snd_pcm_substream *s = pcm->streams[subs->direction].substream; | |
1939 | struct device *dev = subs->dev->bus->controller; | |
1940 | ||
b315997d | 1941 | if (snd_usb_use_vmalloc) |
6dd9486c TI |
1942 | snd_pcm_set_managed_buffer(s, SNDRV_DMA_TYPE_VMALLOC, |
1943 | NULL, 0, 0); | |
b315997d | 1944 | else |
6dd9486c TI |
1945 | snd_pcm_set_managed_buffer(s, SNDRV_DMA_TYPE_DEV_SG, |
1946 | dev, 64*1024, 512*1024); | |
e5779998 | 1947 | } |