Commit | Line | Data |
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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * US-X2Y AUDIO | |
4 | * Copyright (c) 2002-2004 by Karsten Wiese | |
5 | * | |
6 | * based on | |
7 | * | |
8 | * (Tentative) USB Audio Driver for ALSA | |
9 | * | |
10 | * Main and PCM part | |
11 | * | |
12 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
13 | * | |
14 | * Many codes borrowed from audio.c by | |
15 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
16 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
1da177e4 LT |
17 | */ |
18 | ||
19 | ||
1da177e4 | 20 | #include <linux/interrupt.h> |
5a0e3ad6 | 21 | #include <linux/slab.h> |
1da177e4 | 22 | #include <linux/usb.h> |
31623caa | 23 | #include <linux/moduleparam.h> |
1da177e4 LT |
24 | #include <sound/core.h> |
25 | #include <sound/info.h> | |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include "usx2y.h" | |
29 | #include "usbusx2y.h" | |
30 | ||
31 | #define USX2Y_NRPACKS 4 /* Default value used for nr of packs per urb. | |
32 | 1 to 4 have been tested ok on uhci. | |
33 | To use 3 on ohci, you'd need a patch: | |
34 | look for "0000425-linux-2.6.9-rc4-mm1_ohci-hcd.patch.gz" on | |
35 | "https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000425" | |
36 | . | |
37 | 1, 2 and 4 work out of the box on ohci, if I recall correctly. | |
38 | Bigger is safer operation, | |
39 | smaller gives lower latencies. | |
40 | */ | |
41 | #define USX2Y_NRPACKS_VARIABLE y /* If your system works ok with this module's parameter | |
42 | nrpacks set to 1, you might as well comment | |
43 | this #define out, and thereby produce smaller, faster code. | |
44 | You'd also set USX2Y_NRPACKS to 1 then. | |
45 | */ | |
46 | ||
47 | #ifdef USX2Y_NRPACKS_VARIABLE | |
48 | static int nrpacks = USX2Y_NRPACKS; /* number of packets per urb */ | |
49 | #define nr_of_packs() nrpacks | |
50 | module_param(nrpacks, int, 0444); | |
51 | MODULE_PARM_DESC(nrpacks, "Number of packets per URB."); | |
52 | #else | |
53 | #define nr_of_packs() USX2Y_NRPACKS | |
54 | #endif | |
55 | ||
56 | ||
bbe85bbd | 57 | static int usX2Y_urb_capt_retire(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
58 | { |
59 | struct urb *urb = subs->completed_urb; | |
bbe85bbd | 60 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; |
1da177e4 LT |
61 | unsigned char *cp; |
62 | int i, len, lens = 0, hwptr_done = subs->hwptr_done; | |
bbe85bbd | 63 | struct usX2Ydev *usX2Y = subs->usX2Y; |
1da177e4 LT |
64 | |
65 | for (i = 0; i < nr_of_packs(); i++) { | |
66 | cp = (unsigned char*)urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
67 | if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */ | |
bbe85bbd | 68 | snd_printk(KERN_ERR "active frame status %i. " |
6e8d5d2f | 69 | "Most probably some hardware problem.\n", |
bbe85bbd | 70 | urb->iso_frame_desc[i].status); |
1da177e4 LT |
71 | return urb->iso_frame_desc[i].status; |
72 | } | |
73 | len = urb->iso_frame_desc[i].actual_length / usX2Y->stride; | |
74 | if (! len) { | |
75 | snd_printd("0 == len ERROR!\n"); | |
76 | continue; | |
77 | } | |
78 | ||
79 | /* copy a data chunk */ | |
80 | if ((hwptr_done + len) > runtime->buffer_size) { | |
81 | int cnt = runtime->buffer_size - hwptr_done; | |
82 | int blen = cnt * usX2Y->stride; | |
83 | memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, blen); | |
84 | memcpy(runtime->dma_area, cp + blen, len * usX2Y->stride - blen); | |
85 | } else { | |
bbe85bbd TI |
86 | memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, |
87 | len * usX2Y->stride); | |
1da177e4 LT |
88 | } |
89 | lens += len; | |
90 | if ((hwptr_done += len) >= runtime->buffer_size) | |
91 | hwptr_done -= runtime->buffer_size; | |
92 | } | |
93 | ||
94 | subs->hwptr_done = hwptr_done; | |
95 | subs->transfer_done += lens; | |
96 | /* update the pointer, call callback if necessary */ | |
97 | if (subs->transfer_done >= runtime->period_size) { | |
98 | subs->transfer_done -= runtime->period_size; | |
99 | snd_pcm_period_elapsed(subs->pcm_substream); | |
100 | } | |
101 | return 0; | |
102 | } | |
103 | /* | |
104 | * prepare urb for playback data pipe | |
105 | * | |
106 | * we copy the data directly from the pcm buffer. | |
107 | * the current position to be copied is held in hwptr field. | |
108 | * since a urb can handle only a single linear buffer, if the total | |
109 | * transferred area overflows the buffer boundary, we cannot send | |
110 | * it directly from the buffer. thus the data is once copied to | |
111 | * a temporary buffer and urb points to that. | |
112 | */ | |
bbe85bbd | 113 | static int usX2Y_urb_play_prepare(struct snd_usX2Y_substream *subs, |
1da177e4 LT |
114 | struct urb *cap_urb, |
115 | struct urb *urb) | |
116 | { | |
117 | int count, counts, pack; | |
bbe85bbd TI |
118 | struct usX2Ydev *usX2Y = subs->usX2Y; |
119 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; | |
1da177e4 LT |
120 | |
121 | count = 0; | |
122 | for (pack = 0; pack < nr_of_packs(); pack++) { | |
123 | /* calculate the size of a packet */ | |
124 | counts = cap_urb->iso_frame_desc[pack].actual_length / usX2Y->stride; | |
125 | count += counts; | |
126 | if (counts < 43 || counts > 50) { | |
d3d579f8 | 127 | snd_printk(KERN_ERR "should not be here with counts=%i\n", counts); |
1da177e4 LT |
128 | return -EPIPE; |
129 | } | |
130 | /* set up descriptor */ | |
131 | urb->iso_frame_desc[pack].offset = pack ? | |
bbe85bbd TI |
132 | urb->iso_frame_desc[pack - 1].offset + |
133 | urb->iso_frame_desc[pack - 1].length : | |
1da177e4 LT |
134 | 0; |
135 | urb->iso_frame_desc[pack].length = cap_urb->iso_frame_desc[pack].actual_length; | |
136 | } | |
137 | if (atomic_read(&subs->state) >= state_PRERUNNING) | |
138 | if (subs->hwptr + count > runtime->buffer_size) { | |
139 | /* err, the transferred area goes over buffer boundary. | |
140 | * copy the data to the temp buffer. | |
141 | */ | |
142 | int len; | |
143 | len = runtime->buffer_size - subs->hwptr; | |
144 | urb->transfer_buffer = subs->tmpbuf; | |
bbe85bbd TI |
145 | memcpy(subs->tmpbuf, runtime->dma_area + |
146 | subs->hwptr * usX2Y->stride, len * usX2Y->stride); | |
147 | memcpy(subs->tmpbuf + len * usX2Y->stride, | |
148 | runtime->dma_area, (count - len) * usX2Y->stride); | |
1da177e4 LT |
149 | subs->hwptr += count; |
150 | subs->hwptr -= runtime->buffer_size; | |
151 | } else { | |
152 | /* set the buffer pointer */ | |
153 | urb->transfer_buffer = runtime->dma_area + subs->hwptr * usX2Y->stride; | |
154 | if ((subs->hwptr += count) >= runtime->buffer_size) | |
82bd59bc | 155 | subs->hwptr -= runtime->buffer_size; |
1da177e4 LT |
156 | } |
157 | else | |
158 | urb->transfer_buffer = subs->tmpbuf; | |
159 | urb->transfer_buffer_length = count * usX2Y->stride; | |
160 | return 0; | |
161 | } | |
162 | ||
163 | /* | |
164 | * process after playback data complete | |
165 | * | |
166 | * update the current position and call callback if a period is processed. | |
167 | */ | |
bbe85bbd | 168 | static void usX2Y_urb_play_retire(struct snd_usX2Y_substream *subs, struct urb *urb) |
1da177e4 | 169 | { |
bbe85bbd | 170 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; |
1da177e4 LT |
171 | int len = urb->actual_length / subs->usX2Y->stride; |
172 | ||
173 | subs->transfer_done += len; | |
174 | subs->hwptr_done += len; | |
175 | if (subs->hwptr_done >= runtime->buffer_size) | |
176 | subs->hwptr_done -= runtime->buffer_size; | |
177 | if (subs->transfer_done >= runtime->period_size) { | |
178 | subs->transfer_done -= runtime->period_size; | |
179 | snd_pcm_period_elapsed(subs->pcm_substream); | |
180 | } | |
181 | } | |
182 | ||
bbe85bbd | 183 | static int usX2Y_urb_submit(struct snd_usX2Y_substream *subs, struct urb *urb, int frame) |
1da177e4 LT |
184 | { |
185 | int err; | |
186 | if (!urb) | |
187 | return -ENODEV; | |
188 | urb->start_frame = (frame + NRURBS * nr_of_packs()); // let hcd do rollover sanity checks | |
189 | urb->hcpriv = NULL; | |
a014bbad | 190 | urb->dev = subs->usX2Y->dev; /* we need to set this at each time */ |
1da177e4 | 191 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { |
d3d579f8 | 192 | snd_printk(KERN_ERR "usb_submit_urb() returned %i\n", err); |
1da177e4 LT |
193 | return err; |
194 | } | |
195 | return 0; | |
196 | } | |
197 | ||
bbe85bbd TI |
198 | static inline int usX2Y_usbframe_complete(struct snd_usX2Y_substream *capsubs, |
199 | struct snd_usX2Y_substream *playbacksubs, | |
200 | int frame) | |
1da177e4 LT |
201 | { |
202 | int err, state; | |
cb432379 TI |
203 | struct urb *urb = playbacksubs->completed_urb; |
204 | ||
205 | state = atomic_read(&playbacksubs->state); | |
206 | if (NULL != urb) { | |
207 | if (state == state_RUNNING) | |
208 | usX2Y_urb_play_retire(playbacksubs, urb); | |
bbe85bbd TI |
209 | else if (state >= state_PRERUNNING) |
210 | atomic_inc(&playbacksubs->state); | |
cb432379 TI |
211 | } else { |
212 | switch (state) { | |
213 | case state_STARTING1: | |
214 | urb = playbacksubs->urb[0]; | |
215 | atomic_inc(&playbacksubs->state); | |
216 | break; | |
217 | case state_STARTING2: | |
218 | urb = playbacksubs->urb[1]; | |
219 | atomic_inc(&playbacksubs->state); | |
220 | break; | |
1da177e4 | 221 | } |
1da177e4 | 222 | } |
cb432379 TI |
223 | if (urb) { |
224 | if ((err = usX2Y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb)) || | |
bbe85bbd | 225 | (err = usX2Y_urb_submit(playbacksubs, urb, frame))) { |
cb432379 | 226 | return err; |
bbe85bbd | 227 | } |
cb432379 TI |
228 | } |
229 | ||
230 | playbacksubs->completed_urb = NULL; | |
231 | ||
1da177e4 LT |
232 | state = atomic_read(&capsubs->state); |
233 | if (state >= state_PREPARED) { | |
234 | if (state == state_RUNNING) { | |
235 | if ((err = usX2Y_urb_capt_retire(capsubs))) | |
236 | return err; | |
cb432379 TI |
237 | } else if (state >= state_PRERUNNING) |
238 | atomic_inc(&capsubs->state); | |
1da177e4 LT |
239 | if ((err = usX2Y_urb_submit(capsubs, capsubs->completed_urb, frame))) |
240 | return err; | |
241 | } | |
242 | capsubs->completed_urb = NULL; | |
243 | return 0; | |
244 | } | |
245 | ||
246 | ||
bbe85bbd | 247 | static void usX2Y_clients_stop(struct usX2Ydev *usX2Y) |
1da177e4 LT |
248 | { |
249 | int s, u; | |
bbe85bbd | 250 | |
1da177e4 | 251 | for (s = 0; s < 4; s++) { |
bbe85bbd | 252 | struct snd_usX2Y_substream *subs = usX2Y->subs[s]; |
1da177e4 LT |
253 | if (subs) { |
254 | snd_printdd("%i %p state=%i\n", s, subs, atomic_read(&subs->state)); | |
255 | atomic_set(&subs->state, state_STOPPED); | |
256 | } | |
257 | } | |
258 | for (s = 0; s < 4; s++) { | |
bbe85bbd | 259 | struct snd_usX2Y_substream *subs = usX2Y->subs[s]; |
1da177e4 | 260 | if (subs) { |
1fb8510c TI |
261 | if (atomic_read(&subs->state) >= state_PRERUNNING) |
262 | snd_pcm_stop_xrun(subs->pcm_substream); | |
1da177e4 LT |
263 | for (u = 0; u < NRURBS; u++) { |
264 | struct urb *urb = subs->urb[u]; | |
265 | if (NULL != urb) | |
bbe85bbd TI |
266 | snd_printdd("%i status=%i start_frame=%i\n", |
267 | u, urb->status, urb->start_frame); | |
1da177e4 LT |
268 | } |
269 | } | |
270 | } | |
271 | usX2Y->prepare_subs = NULL; | |
272 | wake_up(&usX2Y->prepare_wait_queue); | |
273 | } | |
274 | ||
bbe85bbd TI |
275 | static void usX2Y_error_urb_status(struct usX2Ydev *usX2Y, |
276 | struct snd_usX2Y_substream *subs, struct urb *urb) | |
1da177e4 | 277 | { |
d3d579f8 | 278 | snd_printk(KERN_ERR "ep=%i stalled with status=%i\n", subs->endpoint, urb->status); |
1da177e4 LT |
279 | urb->status = 0; |
280 | usX2Y_clients_stop(usX2Y); | |
281 | } | |
282 | ||
7d12e780 | 283 | static void i_usX2Y_urb_complete(struct urb *urb) |
1da177e4 | 284 | { |
bbe85bbd TI |
285 | struct snd_usX2Y_substream *subs = urb->context; |
286 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
1da177e4 LT |
287 | |
288 | if (unlikely(atomic_read(&subs->state) < state_PREPARED)) { | |
bbe85bbd | 289 | snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", |
a014bbad | 290 | usb_get_current_frame_number(usX2Y->dev), |
bbe85bbd TI |
291 | subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", |
292 | urb->status, urb->start_frame); | |
1da177e4 LT |
293 | return; |
294 | } | |
295 | if (unlikely(urb->status)) { | |
296 | usX2Y_error_urb_status(usX2Y, subs, urb); | |
297 | return; | |
298 | } | |
a9d14bc0 DM |
299 | |
300 | subs->completed_urb = urb; | |
301 | ||
1da177e4 | 302 | { |
bbe85bbd | 303 | struct snd_usX2Y_substream *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE], |
1da177e4 | 304 | *playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; |
bbe85bbd TI |
305 | if (capsubs->completed_urb && |
306 | atomic_read(&capsubs->state) >= state_PREPARED && | |
307 | (playbacksubs->completed_urb || | |
308 | atomic_read(&playbacksubs->state) < state_PREPARED)) { | |
635bbb35 KW |
309 | if (!usX2Y_usbframe_complete(capsubs, playbacksubs, urb->start_frame)) |
310 | usX2Y->wait_iso_frame += nr_of_packs(); | |
311 | else { | |
1da177e4 LT |
312 | snd_printdd("\n"); |
313 | usX2Y_clients_stop(usX2Y); | |
314 | } | |
315 | } | |
316 | } | |
317 | } | |
318 | ||
bbe85bbd | 319 | static void usX2Y_urbs_set_complete(struct usX2Ydev * usX2Y, |
7d12e780 | 320 | void (*complete)(struct urb *)) |
1da177e4 LT |
321 | { |
322 | int s, u; | |
323 | for (s = 0; s < 4; s++) { | |
bbe85bbd | 324 | struct snd_usX2Y_substream *subs = usX2Y->subs[s]; |
1da177e4 LT |
325 | if (NULL != subs) |
326 | for (u = 0; u < NRURBS; u++) { | |
327 | struct urb * urb = subs->urb[u]; | |
328 | if (NULL != urb) | |
329 | urb->complete = complete; | |
330 | } | |
331 | } | |
332 | } | |
333 | ||
bbe85bbd | 334 | static void usX2Y_subs_startup_finish(struct usX2Ydev * usX2Y) |
1da177e4 LT |
335 | { |
336 | usX2Y_urbs_set_complete(usX2Y, i_usX2Y_urb_complete); | |
337 | usX2Y->prepare_subs = NULL; | |
338 | } | |
339 | ||
7d12e780 | 340 | static void i_usX2Y_subs_startup(struct urb *urb) |
1da177e4 | 341 | { |
bbe85bbd TI |
342 | struct snd_usX2Y_substream *subs = urb->context; |
343 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
344 | struct snd_usX2Y_substream *prepare_subs = usX2Y->prepare_subs; | |
1da177e4 LT |
345 | if (NULL != prepare_subs) |
346 | if (urb->start_frame == prepare_subs->urb[0]->start_frame) { | |
347 | usX2Y_subs_startup_finish(usX2Y); | |
348 | atomic_inc(&prepare_subs->state); | |
349 | wake_up(&usX2Y->prepare_wait_queue); | |
350 | } | |
351 | ||
7d12e780 | 352 | i_usX2Y_urb_complete(urb); |
1da177e4 LT |
353 | } |
354 | ||
bbe85bbd | 355 | static void usX2Y_subs_prepare(struct snd_usX2Y_substream *subs) |
1da177e4 | 356 | { |
bbe85bbd TI |
357 | snd_printdd("usX2Y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n", |
358 | subs, subs->endpoint, subs->urb[0], subs->urb[1]); | |
1da177e4 LT |
359 | /* reset the pointer */ |
360 | subs->hwptr = 0; | |
361 | subs->hwptr_done = 0; | |
362 | subs->transfer_done = 0; | |
363 | } | |
364 | ||
365 | ||
bbe85bbd | 366 | static void usX2Y_urb_release(struct urb **urb, int free_tb) |
1da177e4 LT |
367 | { |
368 | if (*urb) { | |
369 | usb_kill_urb(*urb); | |
370 | if (free_tb) | |
371 | kfree((*urb)->transfer_buffer); | |
372 | usb_free_urb(*urb); | |
373 | *urb = NULL; | |
374 | } | |
375 | } | |
376 | /* | |
377 | * release a substreams urbs | |
378 | */ | |
bbe85bbd | 379 | static void usX2Y_urbs_release(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
380 | { |
381 | int i; | |
382 | snd_printdd("usX2Y_urbs_release() %i\n", subs->endpoint); | |
383 | for (i = 0; i < NRURBS; i++) | |
bbe85bbd TI |
384 | usX2Y_urb_release(subs->urb + i, |
385 | subs != subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]); | |
1da177e4 | 386 | |
4d572776 JJ |
387 | kfree(subs->tmpbuf); |
388 | subs->tmpbuf = NULL; | |
1da177e4 LT |
389 | } |
390 | /* | |
391 | * initialize a substream's urbs | |
392 | */ | |
bbe85bbd | 393 | static int usX2Y_urbs_allocate(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
394 | { |
395 | int i; | |
396 | unsigned int pipe; | |
397 | int is_playback = subs == subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; | |
a014bbad | 398 | struct usb_device *dev = subs->usX2Y->dev; |
1da177e4 LT |
399 | |
400 | pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) : | |
401 | usb_rcvisocpipe(dev, subs->endpoint); | |
402 | subs->maxpacksize = usb_maxpacket(dev, pipe, is_playback); | |
403 | if (!subs->maxpacksize) | |
404 | return -EINVAL; | |
405 | ||
406 | if (is_playback && NULL == subs->tmpbuf) { /* allocate a temporary buffer for playback */ | |
407 | subs->tmpbuf = kcalloc(nr_of_packs(), subs->maxpacksize, GFP_KERNEL); | |
6fd9ff7b | 408 | if (!subs->tmpbuf) |
1da177e4 | 409 | return -ENOMEM; |
1da177e4 LT |
410 | } |
411 | /* allocate and initialize data urbs */ | |
412 | for (i = 0; i < NRURBS; i++) { | |
cb432379 | 413 | struct urb **purb = subs->urb + i; |
1da177e4 LT |
414 | if (*purb) { |
415 | usb_kill_urb(*purb); | |
416 | continue; | |
417 | } | |
418 | *purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL); | |
419 | if (NULL == *purb) { | |
420 | usX2Y_urbs_release(subs); | |
421 | return -ENOMEM; | |
422 | } | |
423 | if (!is_playback && !(*purb)->transfer_buffer) { | |
424 | /* allocate a capture buffer per urb */ | |
6da2ec56 KC |
425 | (*purb)->transfer_buffer = |
426 | kmalloc_array(subs->maxpacksize, | |
427 | nr_of_packs(), GFP_KERNEL); | |
1da177e4 LT |
428 | if (NULL == (*purb)->transfer_buffer) { |
429 | usX2Y_urbs_release(subs); | |
430 | return -ENOMEM; | |
431 | } | |
432 | } | |
433 | (*purb)->dev = dev; | |
434 | (*purb)->pipe = pipe; | |
435 | (*purb)->number_of_packets = nr_of_packs(); | |
436 | (*purb)->context = subs; | |
437 | (*purb)->interval = 1; | |
438 | (*purb)->complete = i_usX2Y_subs_startup; | |
439 | } | |
440 | return 0; | |
441 | } | |
442 | ||
bbe85bbd | 443 | static void usX2Y_subs_startup(struct snd_usX2Y_substream *subs) |
1da177e4 | 444 | { |
bbe85bbd | 445 | struct usX2Ydev *usX2Y = subs->usX2Y; |
1da177e4 LT |
446 | usX2Y->prepare_subs = subs; |
447 | subs->urb[0]->start_frame = -1; | |
448 | wmb(); | |
449 | usX2Y_urbs_set_complete(usX2Y, i_usX2Y_subs_startup); | |
450 | } | |
451 | ||
bbe85bbd | 452 | static int usX2Y_urbs_start(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
453 | { |
454 | int i, err; | |
bbe85bbd | 455 | struct usX2Ydev *usX2Y = subs->usX2Y; |
1da177e4 LT |
456 | |
457 | if ((err = usX2Y_urbs_allocate(subs)) < 0) | |
458 | return err; | |
459 | subs->completed_urb = NULL; | |
460 | for (i = 0; i < 4; i++) { | |
bbe85bbd | 461 | struct snd_usX2Y_substream *subs = usX2Y->subs[i]; |
1da177e4 LT |
462 | if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED) |
463 | goto start; | |
464 | } | |
cb432379 | 465 | |
1da177e4 | 466 | start: |
cb432379 TI |
467 | usX2Y_subs_startup(subs); |
468 | for (i = 0; i < NRURBS; i++) { | |
469 | struct urb *urb = subs->urb[i]; | |
470 | if (usb_pipein(urb->pipe)) { | |
471 | unsigned long pack; | |
472 | if (0 == i) | |
473 | atomic_set(&subs->state, state_STARTING3); | |
a014bbad | 474 | urb->dev = usX2Y->dev; |
cb432379 TI |
475 | for (pack = 0; pack < nr_of_packs(); pack++) { |
476 | urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack; | |
477 | urb->iso_frame_desc[pack].length = subs->maxpacksize; | |
478 | } | |
479 | urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs(); | |
480 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { | |
481 | snd_printk (KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err); | |
482 | err = -EPIPE; | |
483 | goto cleanup; | |
635bbb35 KW |
484 | } else |
485 | if (i == 0) | |
cb432379 | 486 | usX2Y->wait_iso_frame = urb->start_frame; |
cb432379 TI |
487 | urb->transfer_flags = 0; |
488 | } else { | |
489 | atomic_set(&subs->state, state_STARTING1); | |
490 | break; | |
1da177e4 | 491 | } |
cb432379 TI |
492 | } |
493 | err = 0; | |
494 | wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs); | |
495 | if (atomic_read(&subs->state) != state_PREPARED) | |
496 | err = -EPIPE; | |
497 | ||
498 | cleanup: | |
499 | if (err) { | |
500 | usX2Y_subs_startup_finish(usX2Y); | |
501 | usX2Y_clients_stop(usX2Y); // something is completely wroong > stop evrything | |
1da177e4 LT |
502 | } |
503 | return err; | |
504 | } | |
505 | ||
506 | /* | |
507 | * return the current pcm pointer. just return the hwptr_done value. | |
508 | */ | |
bbe85bbd | 509 | static snd_pcm_uframes_t snd_usX2Y_pcm_pointer(struct snd_pcm_substream *substream) |
1da177e4 | 510 | { |
bbe85bbd | 511 | struct snd_usX2Y_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
512 | return subs->hwptr_done; |
513 | } | |
514 | /* | |
515 | * start/stop substream | |
516 | */ | |
bbe85bbd | 517 | static int snd_usX2Y_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
1da177e4 | 518 | { |
bbe85bbd | 519 | struct snd_usX2Y_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
520 | |
521 | switch (cmd) { | |
522 | case SNDRV_PCM_TRIGGER_START: | |
523 | snd_printdd("snd_usX2Y_pcm_trigger(START)\n"); | |
524 | if (atomic_read(&subs->state) == state_PREPARED && | |
525 | atomic_read(&subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]->state) >= state_PREPARED) { | |
526 | atomic_set(&subs->state, state_PRERUNNING); | |
527 | } else { | |
528 | snd_printdd("\n"); | |
529 | return -EPIPE; | |
530 | } | |
531 | break; | |
532 | case SNDRV_PCM_TRIGGER_STOP: | |
533 | snd_printdd("snd_usX2Y_pcm_trigger(STOP)\n"); | |
534 | if (atomic_read(&subs->state) >= state_PRERUNNING) | |
535 | atomic_set(&subs->state, state_PREPARED); | |
536 | break; | |
537 | default: | |
538 | return -EINVAL; | |
539 | } | |
540 | return 0; | |
541 | } | |
542 | ||
543 | ||
544 | /* | |
545 | * allocate a buffer, setup samplerate | |
546 | * | |
547 | * so far we use a physically linear buffer although packetize transfer | |
548 | * doesn't need a continuous area. | |
549 | * if sg buffer is supported on the later version of alsa, we'll follow | |
550 | * that. | |
551 | */ | |
552 | static struct s_c2 | |
553 | { | |
554 | char c1, c2; | |
555 | } | |
556 | SetRate44100[] = | |
557 | { | |
558 | { 0x14, 0x08}, // this line sets 44100, well actually a little less | |
559 | { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... | |
560 | { 0x18, 0x42}, | |
561 | { 0x18, 0x45}, | |
562 | { 0x18, 0x46}, | |
563 | { 0x18, 0x48}, | |
564 | { 0x18, 0x4A}, | |
565 | { 0x18, 0x4C}, | |
566 | { 0x18, 0x4E}, | |
567 | { 0x18, 0x50}, | |
568 | { 0x18, 0x52}, | |
569 | { 0x18, 0x54}, | |
570 | { 0x18, 0x56}, | |
571 | { 0x18, 0x58}, | |
572 | { 0x18, 0x5A}, | |
573 | { 0x18, 0x5C}, | |
574 | { 0x18, 0x5E}, | |
575 | { 0x18, 0x60}, | |
576 | { 0x18, 0x62}, | |
577 | { 0x18, 0x64}, | |
578 | { 0x18, 0x66}, | |
579 | { 0x18, 0x68}, | |
580 | { 0x18, 0x6A}, | |
581 | { 0x18, 0x6C}, | |
582 | { 0x18, 0x6E}, | |
583 | { 0x18, 0x70}, | |
584 | { 0x18, 0x72}, | |
585 | { 0x18, 0x74}, | |
586 | { 0x18, 0x76}, | |
587 | { 0x18, 0x78}, | |
588 | { 0x18, 0x7A}, | |
589 | { 0x18, 0x7C}, | |
590 | { 0x18, 0x7E} | |
591 | }; | |
592 | static struct s_c2 SetRate48000[] = | |
593 | { | |
594 | { 0x14, 0x09}, // this line sets 48000, well actually a little less | |
595 | { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... | |
596 | { 0x18, 0x42}, | |
597 | { 0x18, 0x45}, | |
598 | { 0x18, 0x46}, | |
599 | { 0x18, 0x48}, | |
600 | { 0x18, 0x4A}, | |
601 | { 0x18, 0x4C}, | |
602 | { 0x18, 0x4E}, | |
603 | { 0x18, 0x50}, | |
604 | { 0x18, 0x52}, | |
605 | { 0x18, 0x54}, | |
606 | { 0x18, 0x56}, | |
607 | { 0x18, 0x58}, | |
608 | { 0x18, 0x5A}, | |
609 | { 0x18, 0x5C}, | |
610 | { 0x18, 0x5E}, | |
611 | { 0x18, 0x60}, | |
612 | { 0x18, 0x62}, | |
613 | { 0x18, 0x64}, | |
614 | { 0x18, 0x66}, | |
615 | { 0x18, 0x68}, | |
616 | { 0x18, 0x6A}, | |
617 | { 0x18, 0x6C}, | |
618 | { 0x18, 0x6E}, | |
619 | { 0x18, 0x70}, | |
620 | { 0x18, 0x73}, | |
621 | { 0x18, 0x74}, | |
622 | { 0x18, 0x76}, | |
623 | { 0x18, 0x78}, | |
624 | { 0x18, 0x7A}, | |
625 | { 0x18, 0x7C}, | |
626 | { 0x18, 0x7E} | |
627 | }; | |
628 | #define NOOF_SETRATE_URBS ARRAY_SIZE(SetRate48000) | |
629 | ||
7d12e780 | 630 | static void i_usX2Y_04Int(struct urb *urb) |
1da177e4 | 631 | { |
bbe85bbd | 632 | struct usX2Ydev *usX2Y = urb->context; |
1da177e4 | 633 | |
d3d579f8 TI |
634 | if (urb->status) |
635 | snd_printk(KERN_ERR "snd_usX2Y_04Int() urb->status=%i\n", urb->status); | |
1da177e4 LT |
636 | if (0 == --usX2Y->US04->len) |
637 | wake_up(&usX2Y->In04WaitQueue); | |
638 | } | |
639 | ||
bbe85bbd | 640 | static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate) |
1da177e4 LT |
641 | { |
642 | int err = 0, i; | |
bbe85bbd | 643 | struct snd_usX2Y_urbSeq *us = NULL; |
1da177e4 LT |
644 | int *usbdata = NULL; |
645 | struct s_c2 *ra = rate == 48000 ? SetRate48000 : SetRate44100; | |
646 | ||
647 | if (usX2Y->rate != rate) { | |
cb432379 | 648 | us = kzalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL); |
1da177e4 LT |
649 | if (NULL == us) { |
650 | err = -ENOMEM; | |
651 | goto cleanup; | |
652 | } | |
6da2ec56 KC |
653 | usbdata = kmalloc_array(NOOF_SETRATE_URBS, sizeof(int), |
654 | GFP_KERNEL); | |
1da177e4 LT |
655 | if (NULL == usbdata) { |
656 | err = -ENOMEM; | |
657 | goto cleanup; | |
658 | } | |
659 | for (i = 0; i < NOOF_SETRATE_URBS; ++i) { | |
660 | if (NULL == (us->urb[i] = usb_alloc_urb(0, GFP_KERNEL))) { | |
661 | err = -ENOMEM; | |
662 | goto cleanup; | |
663 | } | |
664 | ((char*)(usbdata + i))[0] = ra[i].c1; | |
665 | ((char*)(usbdata + i))[1] = ra[i].c2; | |
a014bbad | 666 | usb_fill_bulk_urb(us->urb[i], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 4), |
1da177e4 | 667 | usbdata + i, 2, i_usX2Y_04Int, usX2Y); |
1da177e4 | 668 | } |
1f100349 TI |
669 | err = usb_urb_ep_type_check(us->urb[0]); |
670 | if (err < 0) | |
671 | goto cleanup; | |
1da177e4 LT |
672 | us->submitted = 0; |
673 | us->len = NOOF_SETRATE_URBS; | |
674 | usX2Y->US04 = us; | |
675 | wait_event_timeout(usX2Y->In04WaitQueue, 0 == us->len, HZ); | |
676 | usX2Y->US04 = NULL; | |
677 | if (us->len) | |
678 | err = -ENODEV; | |
679 | cleanup: | |
680 | if (us) { | |
681 | us->submitted = 2*NOOF_SETRATE_URBS; | |
682 | for (i = 0; i < NOOF_SETRATE_URBS; ++i) { | |
683 | struct urb *urb = us->urb[i]; | |
684 | if (urb->status) { | |
685 | if (!err) | |
686 | err = -ENODEV; | |
687 | usb_kill_urb(urb); | |
688 | } | |
689 | usb_free_urb(urb); | |
690 | } | |
691 | usX2Y->US04 = NULL; | |
692 | kfree(usbdata); | |
693 | kfree(us); | |
cb432379 | 694 | if (!err) |
1da177e4 | 695 | usX2Y->rate = rate; |
1da177e4 LT |
696 | } |
697 | } | |
698 | ||
699 | return err; | |
700 | } | |
701 | ||
702 | ||
bbe85bbd | 703 | static int usX2Y_format_set(struct usX2Ydev *usX2Y, snd_pcm_format_t format) |
1da177e4 LT |
704 | { |
705 | int alternate, err; | |
706 | struct list_head* p; | |
707 | if (format == SNDRV_PCM_FORMAT_S24_3LE) { | |
708 | alternate = 2; | |
709 | usX2Y->stride = 6; | |
710 | } else { | |
711 | alternate = 1; | |
712 | usX2Y->stride = 4; | |
713 | } | |
d82af9f9 | 714 | list_for_each(p, &usX2Y->midi_list) { |
1da177e4 LT |
715 | snd_usbmidi_input_stop(p); |
716 | } | |
717 | usb_kill_urb(usX2Y->In04urb); | |
a014bbad | 718 | if ((err = usb_set_interface(usX2Y->dev, 0, alternate))) { |
d3d579f8 | 719 | snd_printk(KERN_ERR "usb_set_interface error \n"); |
1da177e4 LT |
720 | return err; |
721 | } | |
a014bbad | 722 | usX2Y->In04urb->dev = usX2Y->dev; |
1da177e4 | 723 | err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL); |
d82af9f9 | 724 | list_for_each(p, &usX2Y->midi_list) { |
1da177e4 LT |
725 | snd_usbmidi_input_start(p); |
726 | } | |
727 | usX2Y->format = format; | |
728 | usX2Y->rate = 0; | |
729 | return err; | |
730 | } | |
731 | ||
732 | ||
bbe85bbd TI |
733 | static int snd_usX2Y_pcm_hw_params(struct snd_pcm_substream *substream, |
734 | struct snd_pcm_hw_params *hw_params) | |
1da177e4 LT |
735 | { |
736 | int err = 0; | |
737 | unsigned int rate = params_rate(hw_params); | |
738 | snd_pcm_format_t format = params_format(hw_params); | |
bbe85bbd | 739 | struct snd_card *card = substream->pstr->pcm->card; |
e2439a54 TI |
740 | struct usX2Ydev *dev = usX2Y(card); |
741 | int i; | |
cb432379 | 742 | |
e2439a54 | 743 | mutex_lock(&usX2Y(card)->pcm_mutex); |
cb432379 | 744 | snd_printdd("snd_usX2Y_hw_params(%p, %p)\n", substream, hw_params); |
e2439a54 TI |
745 | /* all pcm substreams off one usX2Y have to operate at the same |
746 | * rate & format | |
747 | */ | |
748 | for (i = 0; i < dev->pcm_devs * 2; i++) { | |
749 | struct snd_usX2Y_substream *subs = dev->subs[i]; | |
750 | struct snd_pcm_substream *test_substream; | |
751 | ||
752 | if (!subs) | |
753 | continue; | |
754 | test_substream = subs->pcm_substream; | |
755 | if (!test_substream || test_substream == substream || | |
756 | !test_substream->runtime) | |
cb432379 | 757 | continue; |
e2439a54 TI |
758 | if ((test_substream->runtime->format && |
759 | test_substream->runtime->format != format) || | |
760 | (test_substream->runtime->rate && | |
761 | test_substream->runtime->rate != rate)) { | |
762 | err = -EINVAL; | |
763 | goto error; | |
1da177e4 LT |
764 | } |
765 | } | |
e2439a54 TI |
766 | |
767 | err = snd_pcm_lib_malloc_pages(substream, | |
768 | params_buffer_bytes(hw_params)); | |
769 | if (err < 0) { | |
bbe85bbd TI |
770 | snd_printk(KERN_ERR "snd_pcm_lib_malloc_pages(%p, %i) returned %i\n", |
771 | substream, params_buffer_bytes(hw_params), err); | |
e2439a54 | 772 | goto error; |
1da177e4 | 773 | } |
e2439a54 TI |
774 | |
775 | error: | |
776 | mutex_unlock(&usX2Y(card)->pcm_mutex); | |
777 | return err; | |
1da177e4 LT |
778 | } |
779 | ||
780 | /* | |
781 | * free the buffer | |
782 | */ | |
bbe85bbd | 783 | static int snd_usX2Y_pcm_hw_free(struct snd_pcm_substream *substream) |
1da177e4 | 784 | { |
bbe85bbd TI |
785 | struct snd_pcm_runtime *runtime = substream->runtime; |
786 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
e2439a54 | 787 | mutex_lock(&subs->usX2Y->pcm_mutex); |
1da177e4 LT |
788 | snd_printdd("snd_usX2Y_hw_free(%p)\n", substream); |
789 | ||
790 | if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { | |
bbe85bbd | 791 | struct snd_usX2Y_substream *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]; |
1da177e4 LT |
792 | atomic_set(&subs->state, state_STOPPED); |
793 | usX2Y_urbs_release(subs); | |
794 | if (!cap_subs->pcm_substream || | |
795 | !cap_subs->pcm_substream->runtime || | |
796 | !cap_subs->pcm_substream->runtime->status || | |
797 | cap_subs->pcm_substream->runtime->status->state < SNDRV_PCM_STATE_PREPARED) { | |
798 | atomic_set(&cap_subs->state, state_STOPPED); | |
799 | usX2Y_urbs_release(cap_subs); | |
800 | } | |
801 | } else { | |
bbe85bbd | 802 | struct snd_usX2Y_substream *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; |
1da177e4 LT |
803 | if (atomic_read(&playback_subs->state) < state_PREPARED) { |
804 | atomic_set(&subs->state, state_STOPPED); | |
805 | usX2Y_urbs_release(subs); | |
806 | } | |
807 | } | |
e2439a54 | 808 | mutex_unlock(&subs->usX2Y->pcm_mutex); |
1da177e4 LT |
809 | return snd_pcm_lib_free_pages(substream); |
810 | } | |
811 | /* | |
812 | * prepare callback | |
813 | * | |
814 | * set format and initialize urbs | |
815 | */ | |
bbe85bbd | 816 | static int snd_usX2Y_pcm_prepare(struct snd_pcm_substream *substream) |
1da177e4 | 817 | { |
bbe85bbd TI |
818 | struct snd_pcm_runtime *runtime = substream->runtime; |
819 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
820 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
821 | struct snd_usX2Y_substream *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]; | |
1da177e4 LT |
822 | int err = 0; |
823 | snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream); | |
824 | ||
e2439a54 | 825 | mutex_lock(&usX2Y->pcm_mutex); |
1da177e4 LT |
826 | usX2Y_subs_prepare(subs); |
827 | // Start hardware streams | |
828 | // SyncStream first.... | |
829 | if (atomic_read(&capsubs->state) < state_PREPARED) { | |
830 | if (usX2Y->format != runtime->format) | |
831 | if ((err = usX2Y_format_set(usX2Y, runtime->format)) < 0) | |
832 | goto up_prepare_mutex; | |
833 | if (usX2Y->rate != runtime->rate) | |
834 | if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0) | |
835 | goto up_prepare_mutex; | |
836 | snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe"); | |
837 | if (0 > (err = usX2Y_urbs_start(capsubs))) | |
838 | goto up_prepare_mutex; | |
839 | } | |
840 | ||
841 | if (subs != capsubs && atomic_read(&subs->state) < state_PREPARED) | |
842 | err = usX2Y_urbs_start(subs); | |
843 | ||
844 | up_prepare_mutex: | |
e2439a54 | 845 | mutex_unlock(&usX2Y->pcm_mutex); |
1da177e4 LT |
846 | return err; |
847 | } | |
848 | ||
bbe85bbd | 849 | static struct snd_pcm_hardware snd_usX2Y_2c = |
1da177e4 LT |
850 | { |
851 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
852 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
2008f137 TI |
853 | SNDRV_PCM_INFO_MMAP_VALID | |
854 | SNDRV_PCM_INFO_BATCH), | |
1da177e4 LT |
855 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE, |
856 | .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, | |
857 | .rate_min = 44100, | |
858 | .rate_max = 48000, | |
859 | .channels_min = 2, | |
860 | .channels_max = 2, | |
861 | .buffer_bytes_max = (2*128*1024), | |
862 | .period_bytes_min = 64, | |
863 | .period_bytes_max = (128*1024), | |
864 | .periods_min = 2, | |
865 | .periods_max = 1024, | |
866 | .fifo_size = 0 | |
867 | }; | |
868 | ||
869 | ||
870 | ||
bbe85bbd | 871 | static int snd_usX2Y_pcm_open(struct snd_pcm_substream *substream) |
1da177e4 | 872 | { |
bbe85bbd | 873 | struct snd_usX2Y_substream *subs = ((struct snd_usX2Y_substream **) |
1da177e4 | 874 | snd_pcm_substream_chip(substream))[substream->stream]; |
bbe85bbd | 875 | struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4 LT |
876 | |
877 | if (subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS) | |
878 | return -EBUSY; | |
879 | ||
880 | runtime->hw = snd_usX2Y_2c; | |
881 | runtime->private_data = subs; | |
882 | subs->pcm_substream = substream; | |
883 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000); | |
884 | return 0; | |
885 | } | |
886 | ||
887 | ||
888 | ||
bbe85bbd | 889 | static int snd_usX2Y_pcm_close(struct snd_pcm_substream *substream) |
1da177e4 | 890 | { |
bbe85bbd TI |
891 | struct snd_pcm_runtime *runtime = substream->runtime; |
892 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
1da177e4 LT |
893 | |
894 | subs->pcm_substream = NULL; | |
895 | ||
bbe85bbd | 896 | return 0; |
1da177e4 LT |
897 | } |
898 | ||
899 | ||
31cb1fb4 | 900 | static const struct snd_pcm_ops snd_usX2Y_pcm_ops = |
1da177e4 LT |
901 | { |
902 | .open = snd_usX2Y_pcm_open, | |
903 | .close = snd_usX2Y_pcm_close, | |
904 | .ioctl = snd_pcm_lib_ioctl, | |
905 | .hw_params = snd_usX2Y_pcm_hw_params, | |
906 | .hw_free = snd_usX2Y_pcm_hw_free, | |
907 | .prepare = snd_usX2Y_pcm_prepare, | |
908 | .trigger = snd_usX2Y_pcm_trigger, | |
909 | .pointer = snd_usX2Y_pcm_pointer, | |
910 | }; | |
911 | ||
912 | ||
913 | /* | |
914 | * free a usb stream instance | |
915 | */ | |
bbe85bbd | 916 | static void usX2Y_audio_stream_free(struct snd_usX2Y_substream **usX2Y_substream) |
1da177e4 | 917 | { |
c111b8de RK |
918 | kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]); |
919 | usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK] = NULL; | |
920 | ||
1da177e4 LT |
921 | kfree(usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]); |
922 | usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE] = NULL; | |
923 | } | |
924 | ||
bbe85bbd | 925 | static void snd_usX2Y_pcm_private_free(struct snd_pcm *pcm) |
1da177e4 | 926 | { |
bbe85bbd | 927 | struct snd_usX2Y_substream **usX2Y_stream = pcm->private_data; |
c3e6f7d8 | 928 | if (usX2Y_stream) |
1da177e4 | 929 | usX2Y_audio_stream_free(usX2Y_stream); |
1da177e4 LT |
930 | } |
931 | ||
bbe85bbd | 932 | static int usX2Y_audio_stream_new(struct snd_card *card, int playback_endpoint, int capture_endpoint) |
1da177e4 | 933 | { |
bbe85bbd | 934 | struct snd_pcm *pcm; |
1da177e4 | 935 | int err, i; |
bbe85bbd | 936 | struct snd_usX2Y_substream **usX2Y_substream = |
a014bbad | 937 | usX2Y(card)->subs + 2 * usX2Y(card)->pcm_devs; |
1da177e4 LT |
938 | |
939 | for (i = playback_endpoint ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE; | |
940 | i <= SNDRV_PCM_STREAM_CAPTURE; ++i) { | |
bbe85bbd | 941 | usX2Y_substream[i] = kzalloc(sizeof(struct snd_usX2Y_substream), GFP_KERNEL); |
6fd9ff7b | 942 | if (!usX2Y_substream[i]) |
1da177e4 | 943 | return -ENOMEM; |
6fd9ff7b | 944 | |
1da177e4 LT |
945 | usX2Y_substream[i]->usX2Y = usX2Y(card); |
946 | } | |
947 | ||
948 | if (playback_endpoint) | |
949 | usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]->endpoint = playback_endpoint; | |
950 | usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]->endpoint = capture_endpoint; | |
951 | ||
a014bbad | 952 | err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usX2Y(card)->pcm_devs, |
1da177e4 LT |
953 | playback_endpoint ? 1 : 0, 1, |
954 | &pcm); | |
955 | if (err < 0) { | |
956 | usX2Y_audio_stream_free(usX2Y_substream); | |
957 | return err; | |
958 | } | |
959 | ||
960 | if (playback_endpoint) | |
961 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usX2Y_pcm_ops); | |
962 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_pcm_ops); | |
963 | ||
964 | pcm->private_data = usX2Y_substream; | |
965 | pcm->private_free = snd_usX2Y_pcm_private_free; | |
966 | pcm->info_flags = 0; | |
967 | ||
a014bbad | 968 | sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usX2Y(card)->pcm_devs); |
1da177e4 | 969 | |
4d1b5303 TI |
970 | if (playback_endpoint) { |
971 | snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, | |
972 | SNDRV_DMA_TYPE_CONTINUOUS, | |
0af0a4fe | 973 | NULL, |
4d1b5303 | 974 | 64*1024, 128*1024); |
1da177e4 | 975 | } |
4d1b5303 TI |
976 | |
977 | snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, | |
978 | SNDRV_DMA_TYPE_CONTINUOUS, | |
0af0a4fe | 979 | NULL, |
4d1b5303 | 980 | 64*1024, 128*1024); |
a014bbad | 981 | usX2Y(card)->pcm_devs++; |
1da177e4 LT |
982 | |
983 | return 0; | |
984 | } | |
985 | ||
986 | /* | |
987 | * create a chip instance and set its names. | |
988 | */ | |
bbe85bbd | 989 | int usX2Y_audio_create(struct snd_card *card) |
1da177e4 LT |
990 | { |
991 | int err = 0; | |
992 | ||
a014bbad | 993 | INIT_LIST_HEAD(&usX2Y(card)->pcm_list); |
1da177e4 LT |
994 | |
995 | if (0 > (err = usX2Y_audio_stream_new(card, 0xA, 0x8))) | |
996 | return err; | |
a014bbad | 997 | if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) == USB_ID_US428) |
1da177e4 LT |
998 | if (0 > (err = usX2Y_audio_stream_new(card, 0, 0xA))) |
999 | return err; | |
a014bbad | 1000 | if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) != USB_ID_US122) |
1da177e4 LT |
1001 | err = usX2Y_rate_set(usX2Y(card), 44100); // Lets us428 recognize output-volume settings, disturbs us122. |
1002 | return err; | |
1003 | } |