Commit | Line | Data |
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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 TI |
82 | snd_printk(KERN_ERR "active frame status %i. " |
83 | "Most propably some hardware problem.\n", | |
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) | |
169 | subs->hwptr -= runtime->buffer_size; | |
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 LT |
274 | if (subs) { |
275 | if (atomic_read(&subs->state) >= state_PRERUNNING) { | |
276 | snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN); | |
277 | } | |
278 | for (u = 0; u < NRURBS; u++) { | |
279 | struct urb *urb = subs->urb[u]; | |
280 | if (NULL != urb) | |
bbe85bbd TI |
281 | snd_printdd("%i status=%i start_frame=%i\n", |
282 | u, urb->status, urb->start_frame); | |
1da177e4 LT |
283 | } |
284 | } | |
285 | } | |
286 | usX2Y->prepare_subs = NULL; | |
287 | wake_up(&usX2Y->prepare_wait_queue); | |
288 | } | |
289 | ||
bbe85bbd TI |
290 | static void usX2Y_error_urb_status(struct usX2Ydev *usX2Y, |
291 | struct snd_usX2Y_substream *subs, struct urb *urb) | |
1da177e4 | 292 | { |
d3d579f8 | 293 | snd_printk(KERN_ERR "ep=%i stalled with status=%i\n", subs->endpoint, urb->status); |
1da177e4 LT |
294 | urb->status = 0; |
295 | usX2Y_clients_stop(usX2Y); | |
296 | } | |
297 | ||
bbe85bbd TI |
298 | static void usX2Y_error_sequence(struct usX2Ydev *usX2Y, |
299 | struct snd_usX2Y_substream *subs, struct urb *urb) | |
1da177e4 | 300 | { |
ad361c98 JP |
301 | snd_printk(KERN_ERR |
302 | "Sequence Error!(hcd_frame=%i ep=%i%s;wait=%i,frame=%i).\n" | |
303 | "Most propably some urb of usb-frame %i is still missing.\n" | |
304 | "Cause could be too long delays in usb-hcd interrupt handling.\n", | |
a014bbad | 305 | usb_get_current_frame_number(usX2Y->dev), |
bbe85bbd TI |
306 | subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", |
307 | usX2Y->wait_iso_frame, urb->start_frame, usX2Y->wait_iso_frame); | |
1da177e4 LT |
308 | usX2Y_clients_stop(usX2Y); |
309 | } | |
310 | ||
7d12e780 | 311 | static void i_usX2Y_urb_complete(struct urb *urb) |
1da177e4 | 312 | { |
bbe85bbd TI |
313 | struct snd_usX2Y_substream *subs = urb->context; |
314 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
1da177e4 LT |
315 | |
316 | if (unlikely(atomic_read(&subs->state) < state_PREPARED)) { | |
bbe85bbd | 317 | snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n", |
a014bbad | 318 | usb_get_current_frame_number(usX2Y->dev), |
bbe85bbd TI |
319 | subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out", |
320 | urb->status, urb->start_frame); | |
1da177e4 LT |
321 | return; |
322 | } | |
323 | if (unlikely(urb->status)) { | |
324 | usX2Y_error_urb_status(usX2Y, subs, urb); | |
325 | return; | |
326 | } | |
bc6191b1 | 327 | if (likely((urb->start_frame & 0xFFFF) == (usX2Y->wait_iso_frame & 0xFFFF))) |
1da177e4 LT |
328 | subs->completed_urb = urb; |
329 | else { | |
330 | usX2Y_error_sequence(usX2Y, subs, urb); | |
331 | return; | |
332 | } | |
333 | { | |
bbe85bbd | 334 | struct snd_usX2Y_substream *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE], |
1da177e4 | 335 | *playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; |
bbe85bbd TI |
336 | if (capsubs->completed_urb && |
337 | atomic_read(&capsubs->state) >= state_PREPARED && | |
338 | (playbacksubs->completed_urb || | |
339 | atomic_read(&playbacksubs->state) < state_PREPARED)) { | |
635bbb35 KW |
340 | if (!usX2Y_usbframe_complete(capsubs, playbacksubs, urb->start_frame)) |
341 | usX2Y->wait_iso_frame += nr_of_packs(); | |
342 | else { | |
1da177e4 LT |
343 | snd_printdd("\n"); |
344 | usX2Y_clients_stop(usX2Y); | |
345 | } | |
346 | } | |
347 | } | |
348 | } | |
349 | ||
bbe85bbd | 350 | static void usX2Y_urbs_set_complete(struct usX2Ydev * usX2Y, |
7d12e780 | 351 | void (*complete)(struct urb *)) |
1da177e4 LT |
352 | { |
353 | int s, u; | |
354 | for (s = 0; s < 4; s++) { | |
bbe85bbd | 355 | struct snd_usX2Y_substream *subs = usX2Y->subs[s]; |
1da177e4 LT |
356 | if (NULL != subs) |
357 | for (u = 0; u < NRURBS; u++) { | |
358 | struct urb * urb = subs->urb[u]; | |
359 | if (NULL != urb) | |
360 | urb->complete = complete; | |
361 | } | |
362 | } | |
363 | } | |
364 | ||
bbe85bbd | 365 | static void usX2Y_subs_startup_finish(struct usX2Ydev * usX2Y) |
1da177e4 LT |
366 | { |
367 | usX2Y_urbs_set_complete(usX2Y, i_usX2Y_urb_complete); | |
368 | usX2Y->prepare_subs = NULL; | |
369 | } | |
370 | ||
7d12e780 | 371 | static void i_usX2Y_subs_startup(struct urb *urb) |
1da177e4 | 372 | { |
bbe85bbd TI |
373 | struct snd_usX2Y_substream *subs = urb->context; |
374 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
375 | struct snd_usX2Y_substream *prepare_subs = usX2Y->prepare_subs; | |
1da177e4 LT |
376 | if (NULL != prepare_subs) |
377 | if (urb->start_frame == prepare_subs->urb[0]->start_frame) { | |
378 | usX2Y_subs_startup_finish(usX2Y); | |
379 | atomic_inc(&prepare_subs->state); | |
380 | wake_up(&usX2Y->prepare_wait_queue); | |
381 | } | |
382 | ||
7d12e780 | 383 | i_usX2Y_urb_complete(urb); |
1da177e4 LT |
384 | } |
385 | ||
bbe85bbd | 386 | static void usX2Y_subs_prepare(struct snd_usX2Y_substream *subs) |
1da177e4 | 387 | { |
bbe85bbd TI |
388 | snd_printdd("usX2Y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n", |
389 | subs, subs->endpoint, subs->urb[0], subs->urb[1]); | |
1da177e4 LT |
390 | /* reset the pointer */ |
391 | subs->hwptr = 0; | |
392 | subs->hwptr_done = 0; | |
393 | subs->transfer_done = 0; | |
394 | } | |
395 | ||
396 | ||
bbe85bbd | 397 | static void usX2Y_urb_release(struct urb **urb, int free_tb) |
1da177e4 LT |
398 | { |
399 | if (*urb) { | |
400 | usb_kill_urb(*urb); | |
401 | if (free_tb) | |
402 | kfree((*urb)->transfer_buffer); | |
403 | usb_free_urb(*urb); | |
404 | *urb = NULL; | |
405 | } | |
406 | } | |
407 | /* | |
408 | * release a substreams urbs | |
409 | */ | |
bbe85bbd | 410 | static void usX2Y_urbs_release(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
411 | { |
412 | int i; | |
413 | snd_printdd("usX2Y_urbs_release() %i\n", subs->endpoint); | |
414 | for (i = 0; i < NRURBS; i++) | |
bbe85bbd TI |
415 | usX2Y_urb_release(subs->urb + i, |
416 | subs != subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]); | |
1da177e4 | 417 | |
4d572776 JJ |
418 | kfree(subs->tmpbuf); |
419 | subs->tmpbuf = NULL; | |
1da177e4 LT |
420 | } |
421 | /* | |
422 | * initialize a substream's urbs | |
423 | */ | |
bbe85bbd | 424 | static int usX2Y_urbs_allocate(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
425 | { |
426 | int i; | |
427 | unsigned int pipe; | |
428 | int is_playback = subs == subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; | |
a014bbad | 429 | struct usb_device *dev = subs->usX2Y->dev; |
1da177e4 LT |
430 | |
431 | pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) : | |
432 | usb_rcvisocpipe(dev, subs->endpoint); | |
433 | subs->maxpacksize = usb_maxpacket(dev, pipe, is_playback); | |
434 | if (!subs->maxpacksize) | |
435 | return -EINVAL; | |
436 | ||
437 | if (is_playback && NULL == subs->tmpbuf) { /* allocate a temporary buffer for playback */ | |
438 | subs->tmpbuf = kcalloc(nr_of_packs(), subs->maxpacksize, GFP_KERNEL); | |
439 | if (NULL == subs->tmpbuf) { | |
440 | snd_printk(KERN_ERR "cannot malloc tmpbuf\n"); | |
441 | return -ENOMEM; | |
442 | } | |
443 | } | |
444 | /* allocate and initialize data urbs */ | |
445 | for (i = 0; i < NRURBS; i++) { | |
cb432379 | 446 | struct urb **purb = subs->urb + i; |
1da177e4 LT |
447 | if (*purb) { |
448 | usb_kill_urb(*purb); | |
449 | continue; | |
450 | } | |
451 | *purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL); | |
452 | if (NULL == *purb) { | |
453 | usX2Y_urbs_release(subs); | |
454 | return -ENOMEM; | |
455 | } | |
456 | if (!is_playback && !(*purb)->transfer_buffer) { | |
457 | /* allocate a capture buffer per urb */ | |
458 | (*purb)->transfer_buffer = kmalloc(subs->maxpacksize * nr_of_packs(), GFP_KERNEL); | |
459 | if (NULL == (*purb)->transfer_buffer) { | |
460 | usX2Y_urbs_release(subs); | |
461 | return -ENOMEM; | |
462 | } | |
463 | } | |
464 | (*purb)->dev = dev; | |
465 | (*purb)->pipe = pipe; | |
466 | (*purb)->number_of_packets = nr_of_packs(); | |
467 | (*purb)->context = subs; | |
468 | (*purb)->interval = 1; | |
469 | (*purb)->complete = i_usX2Y_subs_startup; | |
470 | } | |
471 | return 0; | |
472 | } | |
473 | ||
bbe85bbd | 474 | static void usX2Y_subs_startup(struct snd_usX2Y_substream *subs) |
1da177e4 | 475 | { |
bbe85bbd | 476 | struct usX2Ydev *usX2Y = subs->usX2Y; |
1da177e4 LT |
477 | usX2Y->prepare_subs = subs; |
478 | subs->urb[0]->start_frame = -1; | |
479 | wmb(); | |
480 | usX2Y_urbs_set_complete(usX2Y, i_usX2Y_subs_startup); | |
481 | } | |
482 | ||
bbe85bbd | 483 | static int usX2Y_urbs_start(struct snd_usX2Y_substream *subs) |
1da177e4 LT |
484 | { |
485 | int i, err; | |
bbe85bbd | 486 | struct usX2Ydev *usX2Y = subs->usX2Y; |
1da177e4 LT |
487 | |
488 | if ((err = usX2Y_urbs_allocate(subs)) < 0) | |
489 | return err; | |
490 | subs->completed_urb = NULL; | |
491 | for (i = 0; i < 4; i++) { | |
bbe85bbd | 492 | struct snd_usX2Y_substream *subs = usX2Y->subs[i]; |
1da177e4 LT |
493 | if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED) |
494 | goto start; | |
495 | } | |
cb432379 | 496 | |
1da177e4 | 497 | start: |
cb432379 TI |
498 | usX2Y_subs_startup(subs); |
499 | for (i = 0; i < NRURBS; i++) { | |
500 | struct urb *urb = subs->urb[i]; | |
501 | if (usb_pipein(urb->pipe)) { | |
502 | unsigned long pack; | |
503 | if (0 == i) | |
504 | atomic_set(&subs->state, state_STARTING3); | |
a014bbad | 505 | urb->dev = usX2Y->dev; |
cb432379 TI |
506 | urb->transfer_flags = URB_ISO_ASAP; |
507 | for (pack = 0; pack < nr_of_packs(); pack++) { | |
508 | urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack; | |
509 | urb->iso_frame_desc[pack].length = subs->maxpacksize; | |
510 | } | |
511 | urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs(); | |
512 | if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { | |
513 | snd_printk (KERN_ERR "cannot submit datapipe for urb %d, err = %d\n", i, err); | |
514 | err = -EPIPE; | |
515 | goto cleanup; | |
635bbb35 KW |
516 | } else |
517 | if (i == 0) | |
cb432379 | 518 | usX2Y->wait_iso_frame = urb->start_frame; |
cb432379 TI |
519 | urb->transfer_flags = 0; |
520 | } else { | |
521 | atomic_set(&subs->state, state_STARTING1); | |
522 | break; | |
1da177e4 | 523 | } |
cb432379 TI |
524 | } |
525 | err = 0; | |
526 | wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs); | |
527 | if (atomic_read(&subs->state) != state_PREPARED) | |
528 | err = -EPIPE; | |
529 | ||
530 | cleanup: | |
531 | if (err) { | |
532 | usX2Y_subs_startup_finish(usX2Y); | |
533 | usX2Y_clients_stop(usX2Y); // something is completely wroong > stop evrything | |
1da177e4 LT |
534 | } |
535 | return err; | |
536 | } | |
537 | ||
538 | /* | |
539 | * return the current pcm pointer. just return the hwptr_done value. | |
540 | */ | |
bbe85bbd | 541 | static snd_pcm_uframes_t snd_usX2Y_pcm_pointer(struct snd_pcm_substream *substream) |
1da177e4 | 542 | { |
bbe85bbd | 543 | struct snd_usX2Y_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
544 | return subs->hwptr_done; |
545 | } | |
546 | /* | |
547 | * start/stop substream | |
548 | */ | |
bbe85bbd | 549 | static int snd_usX2Y_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
1da177e4 | 550 | { |
bbe85bbd | 551 | struct snd_usX2Y_substream *subs = substream->runtime->private_data; |
1da177e4 LT |
552 | |
553 | switch (cmd) { | |
554 | case SNDRV_PCM_TRIGGER_START: | |
555 | snd_printdd("snd_usX2Y_pcm_trigger(START)\n"); | |
556 | if (atomic_read(&subs->state) == state_PREPARED && | |
557 | atomic_read(&subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]->state) >= state_PREPARED) { | |
558 | atomic_set(&subs->state, state_PRERUNNING); | |
559 | } else { | |
560 | snd_printdd("\n"); | |
561 | return -EPIPE; | |
562 | } | |
563 | break; | |
564 | case SNDRV_PCM_TRIGGER_STOP: | |
565 | snd_printdd("snd_usX2Y_pcm_trigger(STOP)\n"); | |
566 | if (atomic_read(&subs->state) >= state_PRERUNNING) | |
567 | atomic_set(&subs->state, state_PREPARED); | |
568 | break; | |
569 | default: | |
570 | return -EINVAL; | |
571 | } | |
572 | return 0; | |
573 | } | |
574 | ||
575 | ||
576 | /* | |
577 | * allocate a buffer, setup samplerate | |
578 | * | |
579 | * so far we use a physically linear buffer although packetize transfer | |
580 | * doesn't need a continuous area. | |
581 | * if sg buffer is supported on the later version of alsa, we'll follow | |
582 | * that. | |
583 | */ | |
584 | static struct s_c2 | |
585 | { | |
586 | char c1, c2; | |
587 | } | |
588 | SetRate44100[] = | |
589 | { | |
590 | { 0x14, 0x08}, // this line sets 44100, well actually a little less | |
591 | { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... | |
592 | { 0x18, 0x42}, | |
593 | { 0x18, 0x45}, | |
594 | { 0x18, 0x46}, | |
595 | { 0x18, 0x48}, | |
596 | { 0x18, 0x4A}, | |
597 | { 0x18, 0x4C}, | |
598 | { 0x18, 0x4E}, | |
599 | { 0x18, 0x50}, | |
600 | { 0x18, 0x52}, | |
601 | { 0x18, 0x54}, | |
602 | { 0x18, 0x56}, | |
603 | { 0x18, 0x58}, | |
604 | { 0x18, 0x5A}, | |
605 | { 0x18, 0x5C}, | |
606 | { 0x18, 0x5E}, | |
607 | { 0x18, 0x60}, | |
608 | { 0x18, 0x62}, | |
609 | { 0x18, 0x64}, | |
610 | { 0x18, 0x66}, | |
611 | { 0x18, 0x68}, | |
612 | { 0x18, 0x6A}, | |
613 | { 0x18, 0x6C}, | |
614 | { 0x18, 0x6E}, | |
615 | { 0x18, 0x70}, | |
616 | { 0x18, 0x72}, | |
617 | { 0x18, 0x74}, | |
618 | { 0x18, 0x76}, | |
619 | { 0x18, 0x78}, | |
620 | { 0x18, 0x7A}, | |
621 | { 0x18, 0x7C}, | |
622 | { 0x18, 0x7E} | |
623 | }; | |
624 | static struct s_c2 SetRate48000[] = | |
625 | { | |
626 | { 0x14, 0x09}, // this line sets 48000, well actually a little less | |
627 | { 0x18, 0x40}, // only tascam / frontier design knows the further lines ....... | |
628 | { 0x18, 0x42}, | |
629 | { 0x18, 0x45}, | |
630 | { 0x18, 0x46}, | |
631 | { 0x18, 0x48}, | |
632 | { 0x18, 0x4A}, | |
633 | { 0x18, 0x4C}, | |
634 | { 0x18, 0x4E}, | |
635 | { 0x18, 0x50}, | |
636 | { 0x18, 0x52}, | |
637 | { 0x18, 0x54}, | |
638 | { 0x18, 0x56}, | |
639 | { 0x18, 0x58}, | |
640 | { 0x18, 0x5A}, | |
641 | { 0x18, 0x5C}, | |
642 | { 0x18, 0x5E}, | |
643 | { 0x18, 0x60}, | |
644 | { 0x18, 0x62}, | |
645 | { 0x18, 0x64}, | |
646 | { 0x18, 0x66}, | |
647 | { 0x18, 0x68}, | |
648 | { 0x18, 0x6A}, | |
649 | { 0x18, 0x6C}, | |
650 | { 0x18, 0x6E}, | |
651 | { 0x18, 0x70}, | |
652 | { 0x18, 0x73}, | |
653 | { 0x18, 0x74}, | |
654 | { 0x18, 0x76}, | |
655 | { 0x18, 0x78}, | |
656 | { 0x18, 0x7A}, | |
657 | { 0x18, 0x7C}, | |
658 | { 0x18, 0x7E} | |
659 | }; | |
660 | #define NOOF_SETRATE_URBS ARRAY_SIZE(SetRate48000) | |
661 | ||
7d12e780 | 662 | static void i_usX2Y_04Int(struct urb *urb) |
1da177e4 | 663 | { |
bbe85bbd | 664 | struct usX2Ydev *usX2Y = urb->context; |
1da177e4 | 665 | |
d3d579f8 TI |
666 | if (urb->status) |
667 | snd_printk(KERN_ERR "snd_usX2Y_04Int() urb->status=%i\n", urb->status); | |
1da177e4 LT |
668 | if (0 == --usX2Y->US04->len) |
669 | wake_up(&usX2Y->In04WaitQueue); | |
670 | } | |
671 | ||
bbe85bbd | 672 | static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate) |
1da177e4 LT |
673 | { |
674 | int err = 0, i; | |
bbe85bbd | 675 | struct snd_usX2Y_urbSeq *us = NULL; |
1da177e4 LT |
676 | int *usbdata = NULL; |
677 | struct s_c2 *ra = rate == 48000 ? SetRate48000 : SetRate44100; | |
678 | ||
679 | if (usX2Y->rate != rate) { | |
cb432379 | 680 | us = kzalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL); |
1da177e4 LT |
681 | if (NULL == us) { |
682 | err = -ENOMEM; | |
683 | goto cleanup; | |
684 | } | |
cb432379 | 685 | usbdata = kmalloc(sizeof(int) * NOOF_SETRATE_URBS, GFP_KERNEL); |
1da177e4 LT |
686 | if (NULL == usbdata) { |
687 | err = -ENOMEM; | |
688 | goto cleanup; | |
689 | } | |
690 | for (i = 0; i < NOOF_SETRATE_URBS; ++i) { | |
691 | if (NULL == (us->urb[i] = usb_alloc_urb(0, GFP_KERNEL))) { | |
692 | err = -ENOMEM; | |
693 | goto cleanup; | |
694 | } | |
695 | ((char*)(usbdata + i))[0] = ra[i].c1; | |
696 | ((char*)(usbdata + i))[1] = ra[i].c2; | |
a014bbad | 697 | usb_fill_bulk_urb(us->urb[i], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 4), |
1da177e4 LT |
698 | usbdata + i, 2, i_usX2Y_04Int, usX2Y); |
699 | #ifdef OLD_USB | |
700 | us->urb[i]->transfer_flags = USB_QUEUE_BULK; | |
701 | #endif | |
702 | } | |
703 | us->submitted = 0; | |
704 | us->len = NOOF_SETRATE_URBS; | |
705 | usX2Y->US04 = us; | |
706 | wait_event_timeout(usX2Y->In04WaitQueue, 0 == us->len, HZ); | |
707 | usX2Y->US04 = NULL; | |
708 | if (us->len) | |
709 | err = -ENODEV; | |
710 | cleanup: | |
711 | if (us) { | |
712 | us->submitted = 2*NOOF_SETRATE_URBS; | |
713 | for (i = 0; i < NOOF_SETRATE_URBS; ++i) { | |
714 | struct urb *urb = us->urb[i]; | |
715 | if (urb->status) { | |
716 | if (!err) | |
717 | err = -ENODEV; | |
718 | usb_kill_urb(urb); | |
719 | } | |
720 | usb_free_urb(urb); | |
721 | } | |
722 | usX2Y->US04 = NULL; | |
723 | kfree(usbdata); | |
724 | kfree(us); | |
cb432379 | 725 | if (!err) |
1da177e4 | 726 | usX2Y->rate = rate; |
1da177e4 LT |
727 | } |
728 | } | |
729 | ||
730 | return err; | |
731 | } | |
732 | ||
733 | ||
bbe85bbd | 734 | static int usX2Y_format_set(struct usX2Ydev *usX2Y, snd_pcm_format_t format) |
1da177e4 LT |
735 | { |
736 | int alternate, err; | |
737 | struct list_head* p; | |
738 | if (format == SNDRV_PCM_FORMAT_S24_3LE) { | |
739 | alternate = 2; | |
740 | usX2Y->stride = 6; | |
741 | } else { | |
742 | alternate = 1; | |
743 | usX2Y->stride = 4; | |
744 | } | |
d82af9f9 | 745 | list_for_each(p, &usX2Y->midi_list) { |
1da177e4 LT |
746 | snd_usbmidi_input_stop(p); |
747 | } | |
748 | usb_kill_urb(usX2Y->In04urb); | |
a014bbad | 749 | if ((err = usb_set_interface(usX2Y->dev, 0, alternate))) { |
d3d579f8 | 750 | snd_printk(KERN_ERR "usb_set_interface error \n"); |
1da177e4 LT |
751 | return err; |
752 | } | |
a014bbad | 753 | usX2Y->In04urb->dev = usX2Y->dev; |
1da177e4 | 754 | err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL); |
d82af9f9 | 755 | list_for_each(p, &usX2Y->midi_list) { |
1da177e4 LT |
756 | snd_usbmidi_input_start(p); |
757 | } | |
758 | usX2Y->format = format; | |
759 | usX2Y->rate = 0; | |
760 | return err; | |
761 | } | |
762 | ||
763 | ||
bbe85bbd TI |
764 | static int snd_usX2Y_pcm_hw_params(struct snd_pcm_substream *substream, |
765 | struct snd_pcm_hw_params *hw_params) | |
1da177e4 LT |
766 | { |
767 | int err = 0; | |
768 | unsigned int rate = params_rate(hw_params); | |
769 | snd_pcm_format_t format = params_format(hw_params); | |
bbe85bbd TI |
770 | struct snd_card *card = substream->pstr->pcm->card; |
771 | struct list_head *list; | |
cb432379 TI |
772 | |
773 | snd_printdd("snd_usX2Y_hw_params(%p, %p)\n", substream, hw_params); | |
774 | // all pcm substreams off one usX2Y have to operate at the same rate & format | |
775 | list_for_each(list, &card->devices) { | |
bbe85bbd TI |
776 | struct snd_device *dev; |
777 | struct snd_pcm *pcm; | |
cb432379 TI |
778 | int s; |
779 | dev = snd_device(list); | |
780 | if (dev->type != SNDRV_DEV_PCM) | |
781 | continue; | |
782 | pcm = dev->device_data; | |
783 | for (s = 0; s < 2; ++s) { | |
bbe85bbd | 784 | struct snd_pcm_substream *test_substream; |
cb432379 TI |
785 | test_substream = pcm->streams[s].substream; |
786 | if (test_substream && test_substream != substream && | |
787 | test_substream->runtime && | |
788 | ((test_substream->runtime->format && | |
789 | test_substream->runtime->format != format) || | |
790 | (test_substream->runtime->rate && | |
791 | test_substream->runtime->rate != rate))) | |
792 | return -EINVAL; | |
1da177e4 LT |
793 | } |
794 | } | |
795 | if (0 > (err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)))) { | |
bbe85bbd TI |
796 | snd_printk(KERN_ERR "snd_pcm_lib_malloc_pages(%p, %i) returned %i\n", |
797 | substream, params_buffer_bytes(hw_params), err); | |
1da177e4 LT |
798 | return err; |
799 | } | |
800 | return 0; | |
801 | } | |
802 | ||
803 | /* | |
804 | * free the buffer | |
805 | */ | |
bbe85bbd | 806 | static int snd_usX2Y_pcm_hw_free(struct snd_pcm_substream *substream) |
1da177e4 | 807 | { |
bbe85bbd TI |
808 | struct snd_pcm_runtime *runtime = substream->runtime; |
809 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
12aa7579 | 810 | mutex_lock(&subs->usX2Y->prepare_mutex); |
1da177e4 LT |
811 | snd_printdd("snd_usX2Y_hw_free(%p)\n", substream); |
812 | ||
813 | if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) { | |
bbe85bbd | 814 | struct snd_usX2Y_substream *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]; |
1da177e4 LT |
815 | atomic_set(&subs->state, state_STOPPED); |
816 | usX2Y_urbs_release(subs); | |
817 | if (!cap_subs->pcm_substream || | |
818 | !cap_subs->pcm_substream->runtime || | |
819 | !cap_subs->pcm_substream->runtime->status || | |
820 | cap_subs->pcm_substream->runtime->status->state < SNDRV_PCM_STATE_PREPARED) { | |
821 | atomic_set(&cap_subs->state, state_STOPPED); | |
822 | usX2Y_urbs_release(cap_subs); | |
823 | } | |
824 | } else { | |
bbe85bbd | 825 | struct snd_usX2Y_substream *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]; |
1da177e4 LT |
826 | if (atomic_read(&playback_subs->state) < state_PREPARED) { |
827 | atomic_set(&subs->state, state_STOPPED); | |
828 | usX2Y_urbs_release(subs); | |
829 | } | |
830 | } | |
12aa7579 | 831 | mutex_unlock(&subs->usX2Y->prepare_mutex); |
1da177e4 LT |
832 | return snd_pcm_lib_free_pages(substream); |
833 | } | |
834 | /* | |
835 | * prepare callback | |
836 | * | |
837 | * set format and initialize urbs | |
838 | */ | |
bbe85bbd | 839 | static int snd_usX2Y_pcm_prepare(struct snd_pcm_substream *substream) |
1da177e4 | 840 | { |
bbe85bbd TI |
841 | struct snd_pcm_runtime *runtime = substream->runtime; |
842 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
843 | struct usX2Ydev *usX2Y = subs->usX2Y; | |
844 | struct snd_usX2Y_substream *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]; | |
1da177e4 LT |
845 | int err = 0; |
846 | snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream); | |
847 | ||
12aa7579 | 848 | mutex_lock(&usX2Y->prepare_mutex); |
1da177e4 LT |
849 | usX2Y_subs_prepare(subs); |
850 | // Start hardware streams | |
851 | // SyncStream first.... | |
852 | if (atomic_read(&capsubs->state) < state_PREPARED) { | |
853 | if (usX2Y->format != runtime->format) | |
854 | if ((err = usX2Y_format_set(usX2Y, runtime->format)) < 0) | |
855 | goto up_prepare_mutex; | |
856 | if (usX2Y->rate != runtime->rate) | |
857 | if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0) | |
858 | goto up_prepare_mutex; | |
859 | snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe"); | |
860 | if (0 > (err = usX2Y_urbs_start(capsubs))) | |
861 | goto up_prepare_mutex; | |
862 | } | |
863 | ||
864 | if (subs != capsubs && atomic_read(&subs->state) < state_PREPARED) | |
865 | err = usX2Y_urbs_start(subs); | |
866 | ||
867 | up_prepare_mutex: | |
12aa7579 | 868 | mutex_unlock(&usX2Y->prepare_mutex); |
1da177e4 LT |
869 | return err; |
870 | } | |
871 | ||
bbe85bbd | 872 | static struct snd_pcm_hardware snd_usX2Y_2c = |
1da177e4 LT |
873 | { |
874 | .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | | |
875 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
2008f137 TI |
876 | SNDRV_PCM_INFO_MMAP_VALID | |
877 | SNDRV_PCM_INFO_BATCH), | |
1da177e4 LT |
878 | .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE, |
879 | .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, | |
880 | .rate_min = 44100, | |
881 | .rate_max = 48000, | |
882 | .channels_min = 2, | |
883 | .channels_max = 2, | |
884 | .buffer_bytes_max = (2*128*1024), | |
885 | .period_bytes_min = 64, | |
886 | .period_bytes_max = (128*1024), | |
887 | .periods_min = 2, | |
888 | .periods_max = 1024, | |
889 | .fifo_size = 0 | |
890 | }; | |
891 | ||
892 | ||
893 | ||
bbe85bbd | 894 | static int snd_usX2Y_pcm_open(struct snd_pcm_substream *substream) |
1da177e4 | 895 | { |
bbe85bbd | 896 | struct snd_usX2Y_substream *subs = ((struct snd_usX2Y_substream **) |
1da177e4 | 897 | snd_pcm_substream_chip(substream))[substream->stream]; |
bbe85bbd | 898 | struct snd_pcm_runtime *runtime = substream->runtime; |
1da177e4 LT |
899 | |
900 | if (subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS) | |
901 | return -EBUSY; | |
902 | ||
903 | runtime->hw = snd_usX2Y_2c; | |
904 | runtime->private_data = subs; | |
905 | subs->pcm_substream = substream; | |
906 | snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000); | |
907 | return 0; | |
908 | } | |
909 | ||
910 | ||
911 | ||
bbe85bbd | 912 | static int snd_usX2Y_pcm_close(struct snd_pcm_substream *substream) |
1da177e4 | 913 | { |
bbe85bbd TI |
914 | struct snd_pcm_runtime *runtime = substream->runtime; |
915 | struct snd_usX2Y_substream *subs = runtime->private_data; | |
1da177e4 LT |
916 | |
917 | subs->pcm_substream = NULL; | |
918 | ||
bbe85bbd | 919 | return 0; |
1da177e4 LT |
920 | } |
921 | ||
922 | ||
bbe85bbd | 923 | static struct snd_pcm_ops snd_usX2Y_pcm_ops = |
1da177e4 LT |
924 | { |
925 | .open = snd_usX2Y_pcm_open, | |
926 | .close = snd_usX2Y_pcm_close, | |
927 | .ioctl = snd_pcm_lib_ioctl, | |
928 | .hw_params = snd_usX2Y_pcm_hw_params, | |
929 | .hw_free = snd_usX2Y_pcm_hw_free, | |
930 | .prepare = snd_usX2Y_pcm_prepare, | |
931 | .trigger = snd_usX2Y_pcm_trigger, | |
932 | .pointer = snd_usX2Y_pcm_pointer, | |
933 | }; | |
934 | ||
935 | ||
936 | /* | |
937 | * free a usb stream instance | |
938 | */ | |
bbe85bbd | 939 | static void usX2Y_audio_stream_free(struct snd_usX2Y_substream **usX2Y_substream) |
1da177e4 | 940 | { |
c111b8de RK |
941 | kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]); |
942 | usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK] = NULL; | |
943 | ||
1da177e4 LT |
944 | kfree(usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]); |
945 | usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE] = NULL; | |
946 | } | |
947 | ||
bbe85bbd | 948 | static void snd_usX2Y_pcm_private_free(struct snd_pcm *pcm) |
1da177e4 | 949 | { |
bbe85bbd | 950 | struct snd_usX2Y_substream **usX2Y_stream = pcm->private_data; |
c3e6f7d8 | 951 | if (usX2Y_stream) |
1da177e4 | 952 | usX2Y_audio_stream_free(usX2Y_stream); |
1da177e4 LT |
953 | } |
954 | ||
bbe85bbd | 955 | static int usX2Y_audio_stream_new(struct snd_card *card, int playback_endpoint, int capture_endpoint) |
1da177e4 | 956 | { |
bbe85bbd | 957 | struct snd_pcm *pcm; |
1da177e4 | 958 | int err, i; |
bbe85bbd | 959 | struct snd_usX2Y_substream **usX2Y_substream = |
a014bbad | 960 | usX2Y(card)->subs + 2 * usX2Y(card)->pcm_devs; |
1da177e4 LT |
961 | |
962 | for (i = playback_endpoint ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE; | |
963 | i <= SNDRV_PCM_STREAM_CAPTURE; ++i) { | |
bbe85bbd | 964 | usX2Y_substream[i] = kzalloc(sizeof(struct snd_usX2Y_substream), GFP_KERNEL); |
1da177e4 LT |
965 | if (NULL == usX2Y_substream[i]) { |
966 | snd_printk(KERN_ERR "cannot malloc\n"); | |
967 | return -ENOMEM; | |
968 | } | |
969 | usX2Y_substream[i]->usX2Y = usX2Y(card); | |
970 | } | |
971 | ||
972 | if (playback_endpoint) | |
973 | usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]->endpoint = playback_endpoint; | |
974 | usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]->endpoint = capture_endpoint; | |
975 | ||
a014bbad | 976 | err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usX2Y(card)->pcm_devs, |
1da177e4 LT |
977 | playback_endpoint ? 1 : 0, 1, |
978 | &pcm); | |
979 | if (err < 0) { | |
980 | usX2Y_audio_stream_free(usX2Y_substream); | |
981 | return err; | |
982 | } | |
983 | ||
984 | if (playback_endpoint) | |
985 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usX2Y_pcm_ops); | |
986 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_pcm_ops); | |
987 | ||
988 | pcm->private_data = usX2Y_substream; | |
989 | pcm->private_free = snd_usX2Y_pcm_private_free; | |
990 | pcm->info_flags = 0; | |
991 | ||
a014bbad | 992 | sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usX2Y(card)->pcm_devs); |
1da177e4 LT |
993 | |
994 | if ((playback_endpoint && | |
995 | 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream, | |
996 | SNDRV_DMA_TYPE_CONTINUOUS, | |
997 | snd_dma_continuous_data(GFP_KERNEL), | |
998 | 64*1024, 128*1024))) || | |
999 | 0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream, | |
1000 | SNDRV_DMA_TYPE_CONTINUOUS, | |
1001 | snd_dma_continuous_data(GFP_KERNEL), | |
1002 | 64*1024, 128*1024))) { | |
1003 | snd_usX2Y_pcm_private_free(pcm); | |
1004 | return err; | |
1005 | } | |
a014bbad | 1006 | usX2Y(card)->pcm_devs++; |
1da177e4 LT |
1007 | |
1008 | return 0; | |
1009 | } | |
1010 | ||
1011 | /* | |
1012 | * create a chip instance and set its names. | |
1013 | */ | |
bbe85bbd | 1014 | int usX2Y_audio_create(struct snd_card *card) |
1da177e4 LT |
1015 | { |
1016 | int err = 0; | |
1017 | ||
a014bbad | 1018 | INIT_LIST_HEAD(&usX2Y(card)->pcm_list); |
1da177e4 LT |
1019 | |
1020 | if (0 > (err = usX2Y_audio_stream_new(card, 0xA, 0x8))) | |
1021 | return err; | |
a014bbad | 1022 | if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) == USB_ID_US428) |
1da177e4 LT |
1023 | if (0 > (err = usX2Y_audio_stream_new(card, 0, 0xA))) |
1024 | return err; | |
a014bbad | 1025 | if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) != USB_ID_US122) |
1da177e4 LT |
1026 | err = usX2Y_rate_set(usX2Y(card), 44100); // Lets us428 recognize output-volume settings, disturbs us122. |
1027 | return err; | |
1028 | } |