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1da177e4 LT |
1 | /* |
2 | * US-X2Y AUDIO | |
3 | * Copyright (c) 2002-2004 by Karsten Wiese | |
4 | * | |
5 | * based on | |
6 | * | |
7 | * (Tentative) USB Audio Driver for ALSA | |
8 | * | |
9 | * Main and PCM part | |
10 | * | |
11 | * Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de> | |
12 | * | |
13 | * Many codes borrowed from audio.c by | |
14 | * Alan Cox (alan@lxorguk.ukuu.org.uk) | |
15 | * Thomas Sailer (sailer@ife.ee.ethz.ch) | |
16 | * | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify | |
19 | * it under the terms of the GNU General Public License as published by | |
20 | * the Free Software Foundation; either version 2 of the License, or | |
21 | * (at your option) any later version. | |
22 | * | |
23 | * This program is distributed in the hope that it will be useful, | |
24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
26 | * GNU General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License | |
29 | * along with this program; if not, write to the Free Software | |
30 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
31 | */ | |
32 | ||
33 | ||
1da177e4 | 34 | #include <linux/interrupt.h> |
5a0e3ad6 | 35 | #include <linux/slab.h> |
1da177e4 | 36 | #include <linux/usb.h> |
31623caa | 37 | #include <linux/moduleparam.h> |
1da177e4 LT |
38 | #include <sound/core.h> |
39 | #include <sound/info.h> | |
40 | #include <sound/pcm.h> | |
41 | #include <sound/pcm_params.h> | |
42 | #include "usx2y.h" | |
43 | #include "usbusx2y.h" | |
44 | ||
45 | #define USX2Y_NRPACKS 4 /* Default value used for nr of packs per urb. | |
46 | 1 to 4 have been tested ok on uhci. | |
47 | To use 3 on ohci, you'd need a patch: | |
48 | look for "0000425-linux-2.6.9-rc4-mm1_ohci-hcd.patch.gz" on | |
49 | "https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000425" | |
50 | . | |
51 | 1, 2 and 4 work out of the box on ohci, if I recall correctly. | |
52 | Bigger is safer operation, | |
53 | smaller gives lower latencies. | |
54 | */ | |
55 | #define USX2Y_NRPACKS_VARIABLE y /* If your system works ok with this module's parameter | |
56 | nrpacks set to 1, you might as well comment | |
57 | this #define out, and thereby produce smaller, faster code. | |
58 | You'd also set USX2Y_NRPACKS to 1 then. | |
59 | */ | |
60 | ||
61 | #ifdef USX2Y_NRPACKS_VARIABLE | |
62 | static int nrpacks = USX2Y_NRPACKS; /* number of packets per urb */ | |
63 | #define nr_of_packs() nrpacks | |
64 | module_param(nrpacks, int, 0444); | |
65 | MODULE_PARM_DESC(nrpacks, "Number of packets per URB."); | |
66 | #else | |
67 | #define nr_of_packs() USX2Y_NRPACKS | |
68 | #endif | |
69 | ||
70 | ||
bbe85bbd | 71 | static int usX2Y_urb_capt_retire(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
72 | { |
73 | struct urb *urb = subs->completed_urb; | |
bbe85bbd | 74 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; |
1da177e4 LT |
75 | unsigned char *cp; |
76 | int i, len, lens = 0, hwptr_done = subs->hwptr_done; | |
bbe85bbd | 77 | struct usX2Ydev *usX2Y = subs->usX2Y; |
1da177e4 LT |
78 | |
79 | for (i = 0; i < nr_of_packs(); i++) { | |
80 | cp = (unsigned char*)urb->transfer_buffer + urb->iso_frame_desc[i].offset; | |
81 | if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */ | |
bbe85bbd | 82 | snd_printk(KERN_ERR "active frame status %i. " |
6e8d5d2f | 83 | "Most probably some hardware problem.\n", |
bbe85bbd | 84 | urb->iso_frame_desc[i].status); |
1da177e4 LT |
85 | return urb->iso_frame_desc[i].status; |
86 | } | |
87 | len = urb->iso_frame_desc[i].actual_length / usX2Y->stride; | |
88 | if (! len) { | |
89 | snd_printd("0 == len ERROR!\n"); | |
90 | continue; | |
91 | } | |
92 | ||
93 | /* copy a data chunk */ | |
94 | if ((hwptr_done + len) > runtime->buffer_size) { | |
95 | int cnt = runtime->buffer_size - hwptr_done; | |
96 | int blen = cnt * usX2Y->stride; | |
97 | memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, blen); | |
98 | memcpy(runtime->dma_area, cp + blen, len * usX2Y->stride - blen); | |
99 | } else { | |
bbe85bbd TI |
100 | memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp, |
101 | len * usX2Y->stride); | |
1da177e4 LT |
102 | } |
103 | lens += len; | |
104 | if ((hwptr_done += len) >= runtime->buffer_size) | |
105 | hwptr_done -= runtime->buffer_size; | |
106 | } | |
107 | ||
108 | subs->hwptr_done = hwptr_done; | |
109 | subs->transfer_done += lens; | |
110 | /* update the pointer, call callback if necessary */ | |
111 | if (subs->transfer_done >= runtime->period_size) { | |
112 | subs->transfer_done -= runtime->period_size; | |
113 | snd_pcm_period_elapsed(subs->pcm_substream); | |
114 | } | |
115 | return 0; | |
116 | } | |
117 | /* | |
118 | * prepare urb for playback data pipe | |
119 | * | |
120 | * we copy the data directly from the pcm buffer. | |
121 | * the current position to be copied is held in hwptr field. | |
122 | * since a urb can handle only a single linear buffer, if the total | |
123 | * transferred area overflows the buffer boundary, we cannot send | |
124 | * it directly from the buffer. thus the data is once copied to | |
125 | * a temporary buffer and urb points to that. | |
126 | */ | |
bbe85bbd | 127 | static int usX2Y_urb_play_prepare(struct snd_usX2Y_substream *subs, |
1da177e4 LT |
128 | struct urb *cap_urb, |
129 | struct urb *urb) | |
130 | { | |
131 | int count, counts, pack; | |
bbe85bbd TI |
132 | struct usX2Ydev *usX2Y = subs->usX2Y; |
133 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; | |
1da177e4 LT |
134 | |
135 | count = 0; | |
136 | for (pack = 0; pack < nr_of_packs(); pack++) { | |
137 | /* calculate the size of a packet */ | |
138 | counts = cap_urb->iso_frame_desc[pack].actual_length / usX2Y->stride; | |
139 | count += counts; | |
140 | if (counts < 43 || counts > 50) { | |
d3d579f8 | 141 | snd_printk(KERN_ERR "should not be here with counts=%i\n", counts); |
1da177e4 LT |
142 | return -EPIPE; |
143 | } | |
144 | /* set up descriptor */ | |
145 | urb->iso_frame_desc[pack].offset = pack ? | |
bbe85bbd TI |
146 | urb->iso_frame_desc[pack - 1].offset + |
147 | urb->iso_frame_desc[pack - 1].length : | |
1da177e4 LT |
148 | 0; |
149 | urb->iso_frame_desc[pack].length = cap_urb->iso_frame_desc[pack].actual_length; | |
150 | } | |
151 | if (atomic_read(&subs->state) >= state_PRERUNNING) | |
152 | if (subs->hwptr + count > runtime->buffer_size) { | |
153 | /* err, the transferred area goes over buffer boundary. | |
154 | * copy the data to the temp buffer. | |
155 | */ | |
156 | int len; | |
157 | len = runtime->buffer_size - subs->hwptr; | |
158 | urb->transfer_buffer = subs->tmpbuf; | |
bbe85bbd TI |
159 | memcpy(subs->tmpbuf, runtime->dma_area + |
160 | subs->hwptr * usX2Y->stride, len * usX2Y->stride); | |
161 | memcpy(subs->tmpbuf + len * usX2Y->stride, | |
162 | runtime->dma_area, (count - len) * usX2Y->stride); | |
1da177e4 LT |
163 | subs->hwptr += count; |
164 | subs->hwptr -= runtime->buffer_size; | |
165 | } else { | |
166 | /* set the buffer pointer */ | |
167 | urb->transfer_buffer = runtime->dma_area + subs->hwptr * usX2Y->stride; | |
168 | if ((subs->hwptr += count) >= runtime->buffer_size) | |
82bd59bc | 169 | subs->hwptr -= runtime->buffer_size; |
1da177e4 LT |
170 | } |
171 | else | |
172 | urb->transfer_buffer = subs->tmpbuf; | |
173 | urb->transfer_buffer_length = count * usX2Y->stride; | |
174 | return 0; | |
175 | } | |
176 | ||
177 | /* | |
178 | * process after playback data complete | |
179 | * | |
180 | * update the current position and call callback if a period is processed. | |
181 | */ | |
bbe85bbd | 182 | static void usX2Y_urb_play_retire(struct snd_usX2Y_substream *subs, struct urb *urb) |
1da177e4 | 183 | { |
bbe85bbd | 184 | struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime; |
1da177e4 LT |
185 | int len = urb->actual_length / subs->usX2Y->stride; |
186 | ||
187 | subs->transfer_done += len; | |
188 | subs->hwptr_done += len; | |
189 | if (subs->hwptr_done >= runtime->buffer_size) | |
190 | subs->hwptr_done -= runtime->buffer_size; | |
191 | if (subs->transfer_done >= runtime->period_size) { | |
192 | subs->transfer_done -= runtime->period_size; | |
193 | snd_pcm_period_elapsed(subs->pcm_substream); | |
194 | } | |
195 | } | |
196 | ||
bbe85bbd | 197 | static int usX2Y_urb_submit(struct snd_usX2Y_substream *subs, struct urb *urb, int frame) |
1da177e4 LT |
198 | { |
199 | int err; | |
200 | if (!urb) | |
201 | return -ENODEV; | |
202 | urb->start_frame = (frame + NRURBS * nr_of_packs()); // let hcd do rollover sanity checks | |
203 | urb->hcpriv = NULL; | |
a014bbad | 204 | urb->dev = subs->usX2Y->dev; /* we need to set this at each time */ |
1da177e4 | 205 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { |
d3d579f8 | 206 | snd_printk(KERN_ERR "usb_submit_urb() returned %i\n", err); |
1da177e4 LT |
207 | return err; |
208 | } | |
209 | return 0; | |
210 | } | |
211 | ||
bbe85bbd TI |
212 | static inline int usX2Y_usbframe_complete(struct snd_usX2Y_substream *capsubs, |
213 | struct snd_usX2Y_substream *playbacksubs, | |
214 | int frame) | |
1da177e4 LT |
215 | { |
216 | int err, state; | |
cb432379 TI |
217 | struct urb *urb = playbacksubs->completed_urb; |
218 | ||
219 | state = atomic_read(&playbacksubs->state); | |
220 | if (NULL != urb) { | |
221 | if (state == state_RUNNING) | |
222 | usX2Y_urb_play_retire(playbacksubs, urb); | |
bbe85bbd TI |
223 | else if (state >= state_PRERUNNING) |
224 | atomic_inc(&playbacksubs->state); | |
cb432379 TI |
225 | } else { |
226 | switch (state) { | |
227 | case state_STARTING1: | |
228 | urb = playbacksubs->urb[0]; | |
229 | atomic_inc(&playbacksubs->state); | |
230 | break; | |
231 | case state_STARTING2: | |
232 | urb = playbacksubs->urb[1]; | |
233 | atomic_inc(&playbacksubs->state); | |
234 | break; | |
1da177e4 | 235 | } |
1da177e4 | 236 | } |
cb432379 TI |
237 | if (urb) { |
238 | if ((err = usX2Y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb)) || | |
bbe85bbd | 239 | (err = usX2Y_urb_submit(playbacksubs, urb, frame))) { |
cb432379 | 240 | return err; |
bbe85bbd | 241 | } |
cb432379 TI |
242 | } |
243 | ||
244 | playbacksubs->completed_urb = NULL; | |
245 | ||
1da177e4 LT |
246 | state = atomic_read(&capsubs->state); |
247 | if (state >= state_PREPARED) { | |
248 | if (state == state_RUNNING) { | |
249 | if ((err = usX2Y_urb_capt_retire(capsubs))) | |
250 | return err; | |
cb432379 TI |
251 | } else if (state >= state_PRERUNNING) |
252 | atomic_inc(&capsubs->state); | |
1da177e4 LT |
253 | if ((err = usX2Y_urb_submit(capsubs, capsubs->completed_urb, frame))) |
254 | return err; | |
255 | } | |
256 | capsubs->completed_urb = NULL; | |
257 | return 0; | |
258 | } | |
259 | ||
260 | ||
bbe85bbd | 261 | static void usX2Y_clients_stop(struct usX2Ydev *usX2Y) |
1da177e4 LT |
262 | { |
263 | int s, u; | |
bbe85bbd | 264 | |
1da177e4 | 265 | for (s = 0; s < 4; s++) { |
bbe85bbd | 266 | struct snd_usX2Y_substream *subs = usX2Y->subs[s]; |
1da177e4 LT |
267 | if (subs) { |
268 | snd_printdd("%i %p state=%i\n", s, subs, atomic_read(&subs->state)); | |
269 | atomic_set(&subs->state, state_STOPPED); | |
270 | } | |
271 | } | |
272 | for (s = 0; s < 4; s++) { | |
bbe85bbd | 273 | struct snd_usX2Y_substream *subs = usX2Y->subs[s]; |
1da177e4 | 274 | if (subs) { |
1fb8510c TI |
275 | if (atomic_read(&subs->state) >= state_PRERUNNING) |
276 | snd_pcm_stop_xrun(subs->pcm_substream); | |
1da177e4 LT |
277 | for (u = 0; u < NRURBS; u++) { |
278 | struct urb *urb = subs->urb[u]; | |
279 | if (NULL != urb) | |
bbe85bbd TI |
280 | snd_printdd("%i status=%i start_frame=%i\n", |
281 | u, urb->status, urb->start_frame); | |
1da177e4 LT |
282 | } |
283 | } | |
284 | } | |
285 | usX2Y->prepare_subs = NULL; | |
286 | wake_up(&usX2Y->prepare_wait_queue); | |
287 | } | |
288 | ||
bbe85bbd TI |
289 | static void usX2Y_error_urb_status(struct usX2Ydev *usX2Y, |
290 | struct snd_usX2Y_substream *subs, struct urb *urb) | |
1da177e4 | 291 | { |
d3d579f8 | 292 | snd_printk(KERN_ERR "ep=%i stalled with status=%i\n", subs->endpoint, urb->status); |
1da177e4 LT |
293 | urb->status = 0; |
294 | usX2Y_clients_stop(usX2Y); | |
295 | } | |
296 | ||
7d12e780 | 297 | static void i_usX2Y_urb_complete(struct urb *urb) |
1da177e4 | 298 | { |
bbe85bbd TI |
299 | struct snd_usX2Y_substream *subs = urb->context; |
300 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
1da177e4 LT |
301 | |
302 | if (unlikely(atomic_read(&subs->state) < state_PREPARED)) { | |
bbe85bbd | 303 | snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", |
a014bbad | 304 | usb_get_current_frame_number(usX2Y->dev), |
bbe85bbd TI |
305 | subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", |
306 | urb->status, urb->start_frame); | |
1da177e4 LT |
307 | return; |
308 | } | |
309 | if (unlikely(urb->status)) { | |
310 | usX2Y_error_urb_status(usX2Y, subs, urb); | |
311 | return; | |
312 | } | |
a9d14bc0 DM |
313 | |
314 | subs->completed_urb = urb; | |
315 | ||
1da177e4 | 316 | { |
bbe85bbd | 317 | struct snd_usX2Y_substream *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE], |
1da177e4 | 318 | *playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; |
bbe85bbd TI |
319 | if (capsubs->completed_urb && |
320 | atomic_read(&capsubs->state) >= state_PREPARED && | |
321 | (playbacksubs->completed_urb || | |
322 | atomic_read(&playbacksubs->state) < state_PREPARED)) { | |
635bbb35 KW |
323 | if (!usX2Y_usbframe_complete(capsubs, playbacksubs, urb->start_frame)) |
324 | usX2Y->wait_iso_frame += nr_of_packs(); | |
325 | else { | |
1da177e4 LT |
326 | snd_printdd("\n"); |
327 | usX2Y_clients_stop(usX2Y); | |
328 | } | |
329 | } | |
330 | } | |
331 | } | |
332 | ||
bbe85bbd | 333 | static void usX2Y_urbs_set_complete(struct usX2Ydev * usX2Y, |
7d12e780 | 334 | void (*complete)(struct urb *)) |
1da177e4 LT |
335 | { |
336 | int s, u; | |
337 | for (s = 0; s < 4; s++) { | |
bbe85bbd | 338 | struct snd_usX2Y_substream *subs = usX2Y->subs[s]; |
1da177e4 LT |
339 | if (NULL != subs) |
340 | for (u = 0; u < NRURBS; u++) { | |
341 | struct urb * urb = subs->urb[u]; | |
342 | if (NULL != urb) | |
343 | urb->complete = complete; | |
344 | } | |
345 | } | |
346 | } | |
347 | ||
bbe85bbd | 348 | static void usX2Y_subs_startup_finish(struct usX2Ydev * usX2Y) |
1da177e4 LT |
349 | { |
350 | usX2Y_urbs_set_complete(usX2Y, i_usX2Y_urb_complete); | |
351 | usX2Y->prepare_subs = NULL; | |
352 | } | |
353 | ||
7d12e780 | 354 | static void i_usX2Y_subs_startup(struct urb *urb) |
1da177e4 | 355 | { |
bbe85bbd TI |
356 | struct snd_usX2Y_substream *subs = urb->context; |
357 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
358 | struct snd_usX2Y_substream *prepare_subs = usX2Y->prepare_subs; | |
1da177e4 LT |
359 | if (NULL != prepare_subs) |
360 | if (urb->start_frame == prepare_subs->urb[0]->start_frame) { | |
361 | usX2Y_subs_startup_finish(usX2Y); | |
362 | atomic_inc(&prepare_subs->state); | |
363 | wake_up(&usX2Y->prepare_wait_queue); | |
364 | } | |
365 | ||
7d12e780 | 366 | i_usX2Y_urb_complete(urb); |
1da177e4 LT |
367 | } |
368 | ||
bbe85bbd | 369 | static void usX2Y_subs_prepare(struct snd_usX2Y_substream *subs) |
1da177e4 | 370 | { |
bbe85bbd TI |
371 | snd_printdd("usX2Y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n", |
372 | subs, subs->endpoint, subs->urb[0], subs->urb[1]); | |
1da177e4 LT |
373 | /* reset the pointer */ |
374 | subs->hwptr = 0; | |
375 | subs->hwptr_done = 0; | |
376 | subs->transfer_done = 0; | |
377 | } | |
378 | ||
379 | ||
bbe85bbd | 380 | static void usX2Y_urb_release(struct urb **urb, int free_tb) |
1da177e4 LT |
381 | { |
382 | if (*urb) { | |
383 | usb_kill_urb(*urb); | |
384 | if (free_tb) | |
385 | kfree((*urb)->transfer_buffer); | |
386 | usb_free_urb(*urb); | |
387 | *urb = NULL; | |
388 | } | |
389 | } | |
390 | /* | |
391 | * release a substreams urbs | |
392 | */ | |
bbe85bbd | 393 | static void usX2Y_urbs_release(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
394 | { |
395 | int i; | |
396 | snd_printdd("usX2Y_urbs_release() %i\n", subs->endpoint); | |
397 | for (i = 0; i < NRURBS; i++) | |
bbe85bbd TI |
398 | usX2Y_urb_release(subs->urb + i, |
399 | subs != subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]); | |
1da177e4 | 400 | |
4d572776 JJ |
401 | kfree(subs->tmpbuf); |
402 | subs->tmpbuf = NULL; | |
1da177e4 LT |
403 | } |
404 | /* | |
405 | * initialize a substream's urbs | |
406 | */ | |
bbe85bbd | 407 | static int usX2Y_urbs_allocate(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
408 | { |
409 | int i; | |
410 | unsigned int pipe; | |
411 | int is_playback = subs == subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; | |
a014bbad | 412 | struct usb_device *dev = subs->usX2Y->dev; |
1da177e4 LT |
413 | |
414 | pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) : | |
415 | usb_rcvisocpipe(dev, subs->endpoint); | |
416 | subs->maxpacksize = usb_maxpacket(dev, pipe, is_playback); | |
417 | if (!subs->maxpacksize) | |
418 | return -EINVAL; | |
419 | ||
420 | if (is_playback && NULL == subs->tmpbuf) { /* allocate a temporary buffer for playback */ | |
421 | subs->tmpbuf = kcalloc(nr_of_packs(), subs->maxpacksize, GFP_KERNEL); | |
6fd9ff7b | 422 | if (!subs->tmpbuf) |
1da177e4 | 423 | return -ENOMEM; |
1da177e4 LT |
424 | } |
425 | /* allocate and initialize data urbs */ | |
426 | for (i = 0; i < NRURBS; i++) { | |
cb432379 | 427 | struct urb **purb = subs->urb + i; |
1da177e4 LT |
428 | if (*purb) { |
429 | usb_kill_urb(*purb); | |
430 | continue; | |
431 | } | |
432 | *purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL); | |
433 | if (NULL == *purb) { | |
434 | usX2Y_urbs_release(subs); | |
435 | return -ENOMEM; | |
436 | } | |
437 | if (!is_playback && !(*purb)->transfer_buffer) { | |
438 | /* allocate a capture buffer per urb */ | |
6da2ec56 KC |
439 | (*purb)->transfer_buffer = |
440 | kmalloc_array(subs->maxpacksize, | |
441 | nr_of_packs(), GFP_KERNEL); | |
1da177e4 LT |
442 | if (NULL == (*purb)->transfer_buffer) { |
443 | usX2Y_urbs_release(subs); | |
444 | return -ENOMEM; | |
445 | } | |
446 | } | |
447 | (*purb)->dev = dev; | |
448 | (*purb)->pipe = pipe; | |
449 | (*purb)->number_of_packets = nr_of_packs(); | |
450 | (*purb)->context = subs; | |
451 | (*purb)->interval = 1; | |
452 | (*purb)->complete = i_usX2Y_subs_startup; | |
453 | } | |
454 | return 0; | |
455 | } | |
456 | ||
bbe85bbd | 457 | static void usX2Y_subs_startup(struct snd_usX2Y_substream *subs) |
1da177e4 | 458 | { |
bbe85bbd | 459 | struct usX2Ydev *usX2Y = subs->usX2Y; |
1da177e4 LT |
460 | usX2Y->prepare_subs = subs; |
461 | subs->urb[0]->start_frame = -1; | |
462 | wmb(); | |
463 | usX2Y_urbs_set_complete(usX2Y, i_usX2Y_subs_startup); | |
464 | } | |
465 | ||
bbe85bbd | 466 | static int usX2Y_urbs_start(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
467 | { |
468 | int i, err; | |
bbe85bbd | 469 | struct usX2Ydev *usX2Y = subs->usX2Y; |
1da177e4 LT |
470 | |
471 | if ((err = usX2Y_urbs_allocate(subs)) < 0) | |
472 | return err; | |
473 | subs->completed_urb = NULL; | |
474 | for (i = 0; i < 4; i++) { | |
bbe85bbd | 475 | struct snd_usX2Y_substream *subs = usX2Y->subs[i]; |
1da177e4 LT |
476 | if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED) |
477 | goto start; | |
478 | } | |
cb432379 | 479 | |
1da177e4 | 480 | start: |
cb432379 TI |
481 | usX2Y_subs_startup(subs); |
482 | for (i = 0; i < NRURBS; i++) { | |
483 | struct urb *urb = subs->urb[i]; | |
484 | if (usb_pipein(urb->pipe)) { | |
485 | unsigned long pack; | |
486 | if (0 == i) | |
487 | atomic_set(&subs->state, state_STARTING3); | |
a014bbad | 488 | urb->dev = usX2Y->dev; |
cb432379 TI |
489 | for (pack = 0; pack < nr_of_packs(); pack++) { |
490 | urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack; | |
491 | urb->iso_frame_desc[pack].length = subs->maxpacksize; | |
492 | } | |
493 | urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs(); | |
494 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { | |
495 | snd_printk (KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err); | |
496 | err = -EPIPE; | |
497 | goto cleanup; | |
635bbb35 KW |
498 | } else |
499 | if (i == 0) | |
cb432379 | 500 | usX2Y->wait_iso_frame = urb->start_frame; |
cb432379 TI |
501 | urb->transfer_flags = 0; |
502 | } else { | |
503 | atomic_set(&subs->state, state_STARTING1); | |
504 | break; | |
1da177e4 | 505 | } |
cb432379 TI |
506 | } |
507 | err = 0; | |
508 | wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs); | |
509 | if (atomic_read(&subs->state) != state_PREPARED) | |
510 | err = -EPIPE; | |
511 | ||
512 | cleanup: | |
513 | if (err) { | |
514 | usX2Y_subs_startup_finish(usX2Y); | |
515 | usX2Y_clients_stop(usX2Y); // something is completely wroong > stop evrything | |
1da177e4 LT |
516 | } |
517 | return err; | |
518 | } | |
519 | ||
520 | /* | |
521 | * return the current pcm pointer. just return the hwptr_done value. | |
522 | */ | |
bbe85bbd | 523 | static snd_pcm_uframes_t snd_usX2Y_pcm_pointer(struct snd_pcm_substream *substream) |
1da177e4 | 524 | { |
bbe85bbd | 525 | struct snd_usX2Y_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
526 | return subs->hwptr_done; |
527 | } | |
528 | /* | |
529 | * start/stop substream | |
530 | */ | |
bbe85bbd | 531 | static int snd_usX2Y_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
1da177e4 | 532 | { |
bbe85bbd | 533 | struct snd_usX2Y_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
534 | |
535 | switch (cmd) { | |
536 | case SNDRV_PCM_TRIGGER_START: | |
537 | snd_printdd("snd_usX2Y_pcm_trigger(START)\n"); | |
538 | if (atomic_read(&subs->state) == state_PREPARED && | |
539 | atomic_read(&subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]->state) >= state_PREPARED) { | |
540 | atomic_set(&subs->state, state_PRERUNNING); | |
541 | } else { | |
542 | snd_printdd("\n"); | |
543 | return -EPIPE; | |
544 | } | |
545 | break; | |
546 | case SNDRV_PCM_TRIGGER_STOP: | |
547 | snd_printdd("snd_usX2Y_pcm_trigger(STOP)\n"); | |
548 | if (atomic_read(&subs->state) >= state_PRERUNNING) | |
549 | atomic_set(&subs->state, state_PREPARED); | |
550 | break; | |
551 | default: | |
552 | return -EINVAL; | |
553 | } | |
554 | return 0; | |
555 | } | |
556 | ||
557 | ||
558 | /* | |
559 | * allocate a buffer, setup samplerate | |
560 | * | |
561 | * so far we use a physically linear buffer although packetize transfer | |
562 | * doesn't need a continuous area. | |
563 | * if sg buffer is supported on the later version of alsa, we'll follow | |
564 | * that. | |
565 | */ | |
566 | static struct s_c2 | |
567 | { | |
568 | char c1, c2; | |
569 | } | |
570 | SetRate44100[] = | |
571 | { | |
572 | { 0x14, 0x08}, // this line sets 44100, well actually a little less | |
573 | { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... | |
574 | { 0x18, 0x42}, | |
575 | { 0x18, 0x45}, | |
576 | { 0x18, 0x46}, | |
577 | { 0x18, 0x48}, | |
578 | { 0x18, 0x4A}, | |
579 | { 0x18, 0x4C}, | |
580 | { 0x18, 0x4E}, | |
581 | { 0x18, 0x50}, | |
582 | { 0x18, 0x52}, | |
583 | { 0x18, 0x54}, | |
584 | { 0x18, 0x56}, | |
585 | { 0x18, 0x58}, | |
586 | { 0x18, 0x5A}, | |
587 | { 0x18, 0x5C}, | |
588 | { 0x18, 0x5E}, | |
589 | { 0x18, 0x60}, | |
590 | { 0x18, 0x62}, | |
591 | { 0x18, 0x64}, | |
592 | { 0x18, 0x66}, | |
593 | { 0x18, 0x68}, | |
594 | { 0x18, 0x6A}, | |
595 | { 0x18, 0x6C}, | |
596 | { 0x18, 0x6E}, | |
597 | { 0x18, 0x70}, | |
598 | { 0x18, 0x72}, | |
599 | { 0x18, 0x74}, | |
600 | { 0x18, 0x76}, | |
601 | { 0x18, 0x78}, | |
602 | { 0x18, 0x7A}, | |
603 | { 0x18, 0x7C}, | |
604 | { 0x18, 0x7E} | |
605 | }; | |
606 | static struct s_c2 SetRate48000[] = | |
607 | { | |
608 | { 0x14, 0x09}, // this line sets 48000, well actually a little less | |
609 | { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... | |
610 | { 0x18, 0x42}, | |
611 | { 0x18, 0x45}, | |
612 | { 0x18, 0x46}, | |
613 | { 0x18, 0x48}, | |
614 | { 0x18, 0x4A}, | |
615 | { 0x18, 0x4C}, | |
616 | { 0x18, 0x4E}, | |
617 | { 0x18, 0x50}, | |
618 | { 0x18, 0x52}, | |
619 | { 0x18, 0x54}, | |
620 | { 0x18, 0x56}, | |
621 | { 0x18, 0x58}, | |
622 | { 0x18, 0x5A}, | |
623 | { 0x18, 0x5C}, | |
624 | { 0x18, 0x5E}, | |
625 | { 0x18, 0x60}, | |
626 | { 0x18, 0x62}, | |
627 | { 0x18, 0x64}, | |
628 | { 0x18, 0x66}, | |
629 | { 0x18, 0x68}, | |
630 | { 0x18, 0x6A}, | |
631 | { 0x18, 0x6C}, | |
632 | { 0x18, 0x6E}, | |
633 | { 0x18, 0x70}, | |
634 | { 0x18, 0x73}, | |
635 | { 0x18, 0x74}, | |
636 | { 0x18, 0x76}, | |
637 | { 0x18, 0x78}, | |
638 | { 0x18, 0x7A}, | |
639 | { 0x18, 0x7C}, | |
640 | { 0x18, 0x7E} | |
641 | }; | |
642 | #define NOOF_SETRATE_URBS ARRAY_SIZE(SetRate48000) | |
643 | ||
7d12e780 | 644 | static void i_usX2Y_04Int(struct urb *urb) |
1da177e4 | 645 | { |
bbe85bbd | 646 | struct usX2Ydev *usX2Y = urb->context; |
1da177e4 | 647 | |
d3d579f8 TI |
648 | if (urb->status) |
649 | snd_printk(KERN_ERR "snd_usX2Y_04Int() urb->status=%i\n", urb->status); | |
1da177e4 LT |
650 | if (0 == --usX2Y->US04->len) |
651 | wake_up(&usX2Y->In04WaitQueue); | |
652 | } | |
653 | ||
bbe85bbd | 654 | static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate) |
1da177e4 LT |
655 | { |
656 | int err = 0, i; | |
bbe85bbd | 657 | struct snd_usX2Y_urbSeq *us = NULL; |
1da177e4 LT |
658 | int *usbdata = NULL; |
659 | struct s_c2 *ra = rate == 48000 ? SetRate48000 : SetRate44100; | |
660 | ||
661 | if (usX2Y->rate != rate) { | |
cb432379 | 662 | us = kzalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL); |
1da177e4 LT |
663 | if (NULL == us) { |
664 | err = -ENOMEM; | |
665 | goto cleanup; | |
666 | } | |
6da2ec56 KC |
667 | usbdata = kmalloc_array(NOOF_SETRATE_URBS, sizeof(int), |
668 | GFP_KERNEL); | |
1da177e4 LT |
669 | if (NULL == usbdata) { |
670 | err = -ENOMEM; | |
671 | goto cleanup; | |
672 | } | |
673 | for (i = 0; i < NOOF_SETRATE_URBS; ++i) { | |
674 | if (NULL == (us->urb[i] = usb_alloc_urb(0, GFP_KERNEL))) { | |
675 | err = -ENOMEM; | |
676 | goto cleanup; | |
677 | } | |
678 | ((char*)(usbdata + i))[0] = ra[i].c1; | |
679 | ((char*)(usbdata + i))[1] = ra[i].c2; | |
a014bbad | 680 | usb_fill_bulk_urb(us->urb[i], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 4), |
1da177e4 | 681 | usbdata + i, 2, i_usX2Y_04Int, usX2Y); |
1da177e4 | 682 | } |
1f100349 TI |
683 | err = usb_urb_ep_type_check(us->urb[0]); |
684 | if (err < 0) | |
685 | goto cleanup; | |
1da177e4 LT |
686 | us->submitted = 0; |
687 | us->len = NOOF_SETRATE_URBS; | |
688 | usX2Y->US04 = us; | |
689 | wait_event_timeout(usX2Y->In04WaitQueue, 0 == us->len, HZ); | |
690 | usX2Y->US04 = NULL; | |
691 | if (us->len) | |
692 | err = -ENODEV; | |
693 | cleanup: | |
694 | if (us) { | |
695 | us->submitted = 2*NOOF_SETRATE_URBS; | |
696 | for (i = 0; i < NOOF_SETRATE_URBS; ++i) { | |
697 | struct urb *urb = us->urb[i]; | |
698 | if (urb->status) { | |
699 | if (!err) | |
700 | err = -ENODEV; | |
701 | usb_kill_urb(urb); | |
702 | } | |
703 | usb_free_urb(urb); | |
704 | } | |
705 | usX2Y->US04 = NULL; | |
706 | kfree(usbdata); | |
707 | kfree(us); | |
cb432379 | 708 | if (!err) |
1da177e4 | 709 | usX2Y->rate = rate; |
1da177e4 LT |
710 | } |
711 | } | |
712 | ||
713 | return err; | |
714 | } | |
715 | ||
716 | ||
bbe85bbd | 717 | static int usX2Y_format_set(struct usX2Ydev *usX2Y, snd_pcm_format_t format) |
1da177e4 LT |
718 | { |
719 | int alternate, err; | |
720 | struct list_head* p; | |
721 | if (format == SNDRV_PCM_FORMAT_S24_3LE) { | |
722 | alternate = 2; | |
723 | usX2Y->stride = 6; | |
724 | } else { | |
725 | alternate = 1; | |
726 | usX2Y->stride = 4; | |
727 | } | |
d82af9f9 | 728 | list_for_each(p, &usX2Y->midi_list) { |
1da177e4 LT |
729 | snd_usbmidi_input_stop(p); |
730 | } | |
731 | usb_kill_urb(usX2Y->In04urb); | |
a014bbad | 732 | if ((err = usb_set_interface(usX2Y->dev, 0, alternate))) { |
d3d579f8 | 733 | snd_printk(KERN_ERR "usb_set_interface error \n"); |
1da177e4 LT |
734 | return err; |
735 | } | |
a014bbad | 736 | usX2Y->In04urb->dev = usX2Y->dev; |
1da177e4 | 737 | err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL); |
d82af9f9 | 738 | list_for_each(p, &usX2Y->midi_list) { |
1da177e4 LT |
739 | snd_usbmidi_input_start(p); |
740 | } | |
741 | usX2Y->format = format; | |
742 | usX2Y->rate = 0; | |
743 | return err; | |
744 | } | |
745 | ||
746 | ||
bbe85bbd TI |
747 | static int snd_usX2Y_pcm_hw_params(struct snd_pcm_substream *substream, |
748 | struct snd_pcm_hw_params *hw_params) | |
1da177e4 LT |
749 | { |
750 | int err = 0; | |
751 | unsigned int rate = params_rate(hw_params); | |
752 | snd_pcm_format_t format = params_format(hw_params); | |
bbe85bbd | 753 | struct snd_card *card = substream->pstr->pcm->card; |
e2439a54 TI |
754 | struct usX2Ydev *dev = usX2Y(card); |
755 | int i; | |
cb432379 | 756 | |
e2439a54 | 757 | mutex_lock(&usX2Y(card)->pcm_mutex); |
cb432379 | 758 | snd_printdd("snd_usX2Y_hw_params(%p, %p)\n", substream, hw_params); |
e2439a54 TI |
759 | /* all pcm substreams off one usX2Y have to operate at the same |
760 | * rate & format | |
761 | */ | |
762 | for (i = 0; i < dev->pcm_devs * 2; i++) { | |
763 | struct snd_usX2Y_substream *subs = dev->subs[i]; | |
764 | struct snd_pcm_substream *test_substream; | |
765 | ||
766 | if (!subs) | |
767 | continue; | |
768 | test_substream = subs->pcm_substream; | |
769 | if (!test_substream || test_substream == substream || | |
770 | !test_substream->runtime) | |
cb432379 | 771 | continue; |
e2439a54 TI |
772 | if ((test_substream->runtime->format && |
773 | test_substream->runtime->format != format) || | |
774 | (test_substream->runtime->rate && | |
775 | test_substream->runtime->rate != rate)) { | |
776 | err = -EINVAL; | |
777 | goto error; | |
1da177e4 LT |
778 | } |
779 | } | |
e2439a54 TI |
780 | |
781 | err = snd_pcm_lib_malloc_pages(substream, | |
782 | params_buffer_bytes(hw_params)); | |
783 | if (err < 0) { | |
bbe85bbd TI |
784 | snd_printk(KERN_ERR "snd_pcm_lib_malloc_pages(%p, %i) returned %i\n", |
785 | substream, params_buffer_bytes(hw_params), err); | |
e2439a54 | 786 | goto error; |
1da177e4 | 787 | } |
e2439a54 TI |
788 | |
789 | error: | |
790 | mutex_unlock(&usX2Y(card)->pcm_mutex); | |
791 | return err; | |
1da177e4 LT |
792 | } |
793 | ||
794 | /* | |
795 | * free the buffer | |
796 | */ | |
bbe85bbd | 797 | static int snd_usX2Y_pcm_hw_free(struct snd_pcm_substream *substream) |
1da177e4 | 798 | { |
bbe85bbd TI |
799 | struct snd_pcm_runtime *runtime = substream->runtime; |
800 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
e2439a54 | 801 | mutex_lock(&subs->usX2Y->pcm_mutex); |
1da177e4 LT |
802 | snd_printdd("snd_usX2Y_hw_free(%p)\n", substream); |
803 | ||
804 | if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { | |
bbe85bbd | 805 | struct snd_usX2Y_substream *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]; |
1da177e4 LT |
806 | atomic_set(&subs->state, state_STOPPED); |
807 | usX2Y_urbs_release(subs); | |
808 | if (!cap_subs->pcm_substream || | |
809 | !cap_subs->pcm_substream->runtime || | |
810 | !cap_subs->pcm_substream->runtime->status || | |
811 | cap_subs->pcm_substream->runtime->status->state < SNDRV_PCM_STATE_PREPARED) { | |
812 | atomic_set(&cap_subs->state, state_STOPPED); | |
813 | usX2Y_urbs_release(cap_subs); | |
814 | } | |
815 | } else { | |
bbe85bbd | 816 | struct snd_usX2Y_substream *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; |
1da177e4 LT |
817 | if (atomic_read(&playback_subs->state) < state_PREPARED) { |
818 | atomic_set(&subs->state, state_STOPPED); | |
819 | usX2Y_urbs_release(subs); | |
820 | } | |
821 | } | |
e2439a54 | 822 | mutex_unlock(&subs->usX2Y->pcm_mutex); |
1da177e4 LT |
823 | return snd_pcm_lib_free_pages(substream); |
824 | } | |
825 | /* | |
826 | * prepare callback | |
827 | * | |
828 | * set format and initialize urbs | |
829 | */ | |
bbe85bbd | 830 | static int snd_usX2Y_pcm_prepare(struct snd_pcm_substream *substream) |
1da177e4 | 831 | { |
bbe85bbd TI |
832 | struct snd_pcm_runtime *runtime = substream->runtime; |
833 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
834 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
835 | struct snd_usX2Y_substream *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]; | |
1da177e4 LT |
836 | int err = 0; |
837 | snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream); | |
838 | ||
e2439a54 | 839 | mutex_lock(&usX2Y->pcm_mutex); |
1da177e4 LT |
840 | usX2Y_subs_prepare(subs); |
841 | // Start hardware streams | |
842 | // SyncStream first.... | |
843 | if (atomic_read(&capsubs->state) < state_PREPARED) { | |
844 | if (usX2Y->format != runtime->format) | |
845 | if ((err = usX2Y_format_set(usX2Y, runtime->format)) < 0) | |
846 | goto up_prepare_mutex; | |
847 | if (usX2Y->rate != runtime->rate) | |
848 | if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0) | |
849 | goto up_prepare_mutex; | |
850 | snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe"); | |
851 | if (0 > (err = usX2Y_urbs_start(capsubs))) | |
852 | goto up_prepare_mutex; | |
853 | } | |
854 | ||
855 | if (subs != capsubs && atomic_read(&subs->state) < state_PREPARED) | |
856 | err = usX2Y_urbs_start(subs); | |
857 | ||
858 | up_prepare_mutex: | |
e2439a54 | 859 | mutex_unlock(&usX2Y->pcm_mutex); |
1da177e4 LT |
860 | return err; |
861 | } | |
862 | ||
bbe85bbd | 863 | static struct snd_pcm_hardware snd_usX2Y_2c = |
1da177e4 LT |
864 | { |
865 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
866 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
2008f137 TI |
867 | SNDRV_PCM_INFO_MMAP_VALID | |
868 | SNDRV_PCM_INFO_BATCH), | |
1da177e4 LT |
869 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE, |
870 | .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, | |
871 | .rate_min = 44100, | |
872 | .rate_max = 48000, | |
873 | .channels_min = 2, | |
874 | .channels_max = 2, | |
875 | .buffer_bytes_max = (2*128*1024), | |
876 | .period_bytes_min = 64, | |
877 | .period_bytes_max = (128*1024), | |
878 | .periods_min = 2, | |
879 | .periods_max = 1024, | |
880 | .fifo_size = 0 | |
881 | }; | |
882 | ||
883 | ||
884 | ||
bbe85bbd | 885 | static int snd_usX2Y_pcm_open(struct snd_pcm_substream *substream) |
1da177e4 | 886 | { |
bbe85bbd | 887 | struct snd_usX2Y_substream *subs = ((struct snd_usX2Y_substream **) |
1da177e4 | 888 | snd_pcm_substream_chip(substream))[substream->stream]; |
bbe85bbd | 889 | struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4 LT |
890 | |
891 | if (subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS) | |
892 | return -EBUSY; | |
893 | ||
894 | runtime->hw = snd_usX2Y_2c; | |
895 | runtime->private_data = subs; | |
896 | subs->pcm_substream = substream; | |
897 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000); | |
898 | return 0; | |
899 | } | |
900 | ||
901 | ||
902 | ||
bbe85bbd | 903 | static int snd_usX2Y_pcm_close(struct snd_pcm_substream *substream) |
1da177e4 | 904 | { |
bbe85bbd TI |
905 | struct snd_pcm_runtime *runtime = substream->runtime; |
906 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
1da177e4 LT |
907 | |
908 | subs->pcm_substream = NULL; | |
909 | ||
bbe85bbd | 910 | return 0; |
1da177e4 LT |
911 | } |
912 | ||
913 | ||
31cb1fb4 | 914 | static const struct snd_pcm_ops snd_usX2Y_pcm_ops = |
1da177e4 LT |
915 | { |
916 | .open = snd_usX2Y_pcm_open, | |
917 | .close = snd_usX2Y_pcm_close, | |
918 | .ioctl = snd_pcm_lib_ioctl, | |
919 | .hw_params = snd_usX2Y_pcm_hw_params, | |
920 | .hw_free = snd_usX2Y_pcm_hw_free, | |
921 | .prepare = snd_usX2Y_pcm_prepare, | |
922 | .trigger = snd_usX2Y_pcm_trigger, | |
923 | .pointer = snd_usX2Y_pcm_pointer, | |
924 | }; | |
925 | ||
926 | ||
927 | /* | |
928 | * free a usb stream instance | |
929 | */ | |
bbe85bbd | 930 | static void usX2Y_audio_stream_free(struct snd_usX2Y_substream **usX2Y_substream) |
1da177e4 | 931 | { |
c111b8de RK |
932 | kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]); |
933 | usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK] = NULL; | |
934 | ||
1da177e4 LT |
935 | kfree(usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]); |
936 | usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE] = NULL; | |
937 | } | |
938 | ||
bbe85bbd | 939 | static void snd_usX2Y_pcm_private_free(struct snd_pcm *pcm) |
1da177e4 | 940 | { |
bbe85bbd | 941 | struct snd_usX2Y_substream **usX2Y_stream = pcm->private_data; |
c3e6f7d8 | 942 | if (usX2Y_stream) |
1da177e4 | 943 | usX2Y_audio_stream_free(usX2Y_stream); |
1da177e4 LT |
944 | } |
945 | ||
bbe85bbd | 946 | static int usX2Y_audio_stream_new(struct snd_card *card, int playback_endpoint, int capture_endpoint) |
1da177e4 | 947 | { |
bbe85bbd | 948 | struct snd_pcm *pcm; |
1da177e4 | 949 | int err, i; |
bbe85bbd | 950 | struct snd_usX2Y_substream **usX2Y_substream = |
a014bbad | 951 | usX2Y(card)->subs + 2 * usX2Y(card)->pcm_devs; |
1da177e4 LT |
952 | |
953 | for (i = playback_endpoint ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE; | |
954 | i <= SNDRV_PCM_STREAM_CAPTURE; ++i) { | |
bbe85bbd | 955 | usX2Y_substream[i] = kzalloc(sizeof(struct snd_usX2Y_substream), GFP_KERNEL); |
6fd9ff7b | 956 | if (!usX2Y_substream[i]) |
1da177e4 | 957 | return -ENOMEM; |
6fd9ff7b | 958 | |
1da177e4 LT |
959 | usX2Y_substream[i]->usX2Y = usX2Y(card); |
960 | } | |
961 | ||
962 | if (playback_endpoint) | |
963 | usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]->endpoint = playback_endpoint; | |
964 | usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]->endpoint = capture_endpoint; | |
965 | ||
a014bbad | 966 | err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usX2Y(card)->pcm_devs, |
1da177e4 LT |
967 | playback_endpoint ? 1 : 0, 1, |
968 | &pcm); | |
969 | if (err < 0) { | |
970 | usX2Y_audio_stream_free(usX2Y_substream); | |
971 | return err; | |
972 | } | |
973 | ||
974 | if (playback_endpoint) | |
975 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usX2Y_pcm_ops); | |
976 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_pcm_ops); | |
977 | ||
978 | pcm->private_data = usX2Y_substream; | |
979 | pcm->private_free = snd_usX2Y_pcm_private_free; | |
980 | pcm->info_flags = 0; | |
981 | ||
a014bbad | 982 | sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usX2Y(card)->pcm_devs); |
1da177e4 LT |
983 | |
984 | if ((playback_endpoint && | |
985 | 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, | |
986 | SNDRV_DMA_TYPE_CONTINUOUS, | |
987 | snd_dma_continuous_data(GFP_KERNEL), | |
988 | 64*1024, 128*1024))) || | |
989 | 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, | |
990 | SNDRV_DMA_TYPE_CONTINUOUS, | |
991 | snd_dma_continuous_data(GFP_KERNEL), | |
992 | 64*1024, 128*1024))) { | |
993 | snd_usX2Y_pcm_private_free(pcm); | |
994 | return err; | |
995 | } | |
a014bbad | 996 | usX2Y(card)->pcm_devs++; |
1da177e4 LT |
997 | |
998 | return 0; | |
999 | } | |
1000 | ||
1001 | /* | |
1002 | * create a chip instance and set its names. | |
1003 | */ | |
bbe85bbd | 1004 | int usX2Y_audio_create(struct snd_card *card) |
1da177e4 LT |
1005 | { |
1006 | int err = 0; | |
1007 | ||
a014bbad | 1008 | INIT_LIST_HEAD(&usX2Y(card)->pcm_list); |
1da177e4 LT |
1009 | |
1010 | if (0 > (err = usX2Y_audio_stream_new(card, 0xA, 0x8))) | |
1011 | return err; | |
a014bbad | 1012 | if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) == USB_ID_US428) |
1da177e4 LT |
1013 | if (0 > (err = usX2Y_audio_stream_new(card, 0, 0xA))) |
1014 | return err; | |
a014bbad | 1015 | if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) != USB_ID_US122) |
1da177e4 LT |
1016 | err = usX2Y_rate_set(usX2Y(card), 44100); // Lets us428 recognize output-volume settings, disturbs us122. |
1017 | return err; | |
1018 | } |