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2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/sound/usb/usx2y/usbusx2yaudio.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  *   US-X2Y AUDIO
34  *   Copyright (c) 2002-2004 by Karsten Wiese
....@@ -13,21 +14,6 @@
1314  *   Many codes borrowed from audio.c by 
1415  *	    Alan Cox (alan@lxorguk.ukuu.org.uk)
1516  *	    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
3117  */
3218 
3319 
....@@ -68,13 +54,13 @@
6854 #endif
6955 
7056 
71
-static int usX2Y_urb_capt_retire(struct snd_usX2Y_substream *subs)
57
+static int usx2y_urb_capt_retire(struct snd_usx2y_substream *subs)
7258 {
7359 	struct urb	*urb = subs->completed_urb;
7460 	struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
7561 	unsigned char	*cp;
7662 	int 		i, len, lens = 0, hwptr_done = subs->hwptr_done;
77
-	struct usX2Ydev	*usX2Y = subs->usX2Y;
63
+	struct usx2ydev	*usx2y = subs->usx2y;
7864 
7965 	for (i = 0; i < nr_of_packs(); i++) {
8066 		cp = (unsigned char*)urb->transfer_buffer + urb->iso_frame_desc[i].offset;
....@@ -84,7 +70,7 @@
8470 				   urb->iso_frame_desc[i].status);
8571 			return urb->iso_frame_desc[i].status;
8672 		}
87
-		len = urb->iso_frame_desc[i].actual_length / usX2Y->stride;
73
+		len = urb->iso_frame_desc[i].actual_length / usx2y->stride;
8874 		if (! len) {
8975 			snd_printd("0 == len ERROR!\n");
9076 			continue;
....@@ -93,12 +79,12 @@
9379 		/* copy a data chunk */
9480 		if ((hwptr_done + len) > runtime->buffer_size) {
9581 			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);
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);
9985 		} else {
100
-			memcpy(runtime->dma_area + hwptr_done * usX2Y->stride, cp,
101
-			       len * usX2Y->stride);
86
+			memcpy(runtime->dma_area + hwptr_done * usx2y->stride, cp,
87
+			       len * usx2y->stride);
10288 		}
10389 		lens += len;
10490 		if ((hwptr_done += len) >= runtime->buffer_size)
....@@ -124,18 +110,18 @@
124110  * it directly from the buffer.  thus the data is once copied to
125111  * a temporary buffer and urb points to that.
126112  */
127
-static int usX2Y_urb_play_prepare(struct snd_usX2Y_substream *subs,
113
+static int usx2y_urb_play_prepare(struct snd_usx2y_substream *subs,
128114 				  struct urb *cap_urb,
129115 				  struct urb *urb)
130116 {
131117 	int count, counts, pack;
132
-	struct usX2Ydev *usX2Y = subs->usX2Y;
118
+	struct usx2ydev *usx2y = subs->usx2y;
133119 	struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
134120 
135121 	count = 0;
136122 	for (pack = 0; pack <  nr_of_packs(); pack++) {
137123 		/* calculate the size of a packet */
138
-		counts = cap_urb->iso_frame_desc[pack].actual_length / usX2Y->stride;
124
+		counts = cap_urb->iso_frame_desc[pack].actual_length / usx2y->stride;
139125 		count += counts;
140126 		if (counts < 43 || counts > 50) {
141127 			snd_printk(KERN_ERR "should not be here with counts=%i\n", counts);
....@@ -148,7 +134,7 @@
148134 			0;
149135 		urb->iso_frame_desc[pack].length = cap_urb->iso_frame_desc[pack].actual_length;
150136 	}
151
-	if (atomic_read(&subs->state) >= state_PRERUNNING)
137
+	if (atomic_read(&subs->state) >= STATE_PRERUNNING)
152138 		if (subs->hwptr + count > runtime->buffer_size) {
153139 			/* err, the transferred area goes over buffer boundary.
154140 			 * copy the data to the temp buffer.
....@@ -157,20 +143,20 @@
157143 			len = runtime->buffer_size - subs->hwptr;
158144 			urb->transfer_buffer = subs->tmpbuf;
159145 			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);
146
+			       subs->hwptr * usx2y->stride, len * usx2y->stride);
147
+			memcpy(subs->tmpbuf + len * usx2y->stride,
148
+			       runtime->dma_area, (count - len) * usx2y->stride);
163149 			subs->hwptr += count;
164150 			subs->hwptr -= runtime->buffer_size;
165151 		} else {
166152 			/* set the buffer pointer */
167
-			urb->transfer_buffer = runtime->dma_area + subs->hwptr * usX2Y->stride;
153
+			urb->transfer_buffer = runtime->dma_area + subs->hwptr * usx2y->stride;
168154 			if ((subs->hwptr += count) >= runtime->buffer_size)
169155 				subs->hwptr -= runtime->buffer_size;
170156 		}
171157 	else
172158 		urb->transfer_buffer = subs->tmpbuf;
173
-	urb->transfer_buffer_length = count * usX2Y->stride;
159
+	urb->transfer_buffer_length = count * usx2y->stride;
174160 	return 0;
175161 }
176162 
....@@ -179,10 +165,10 @@
179165  *
180166  * update the current position and call callback if a period is processed.
181167  */
182
-static void usX2Y_urb_play_retire(struct snd_usX2Y_substream *subs, struct urb *urb)
168
+static void usx2y_urb_play_retire(struct snd_usx2y_substream *subs, struct urb *urb)
183169 {
184170 	struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
185
-	int		len = urb->actual_length / subs->usX2Y->stride;
171
+	int		len = urb->actual_length / subs->usx2y->stride;
186172 
187173 	subs->transfer_done += len;
188174 	subs->hwptr_done +=  len;
....@@ -194,14 +180,14 @@
194180 	}
195181 }
196182 
197
-static int usX2Y_urb_submit(struct snd_usX2Y_substream *subs, struct urb *urb, int frame)
183
+static int usx2y_urb_submit(struct snd_usx2y_substream *subs, struct urb *urb, int frame)
198184 {
199185 	int err;
200186 	if (!urb)
201187 		return -ENODEV;
202188 	urb->start_frame = (frame + NRURBS * nr_of_packs());  // let hcd do rollover sanity checks
203189 	urb->hcpriv = NULL;
204
-	urb->dev = subs->usX2Y->dev; /* we need to set this at each time */
190
+	urb->dev = subs->usx2y->dev; /* we need to set this at each time */
205191 	if ((err = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
206192 		snd_printk(KERN_ERR "usb_submit_urb() returned %i\n", err);
207193 		return err;
....@@ -209,8 +195,8 @@
209195 	return 0;
210196 }
211197 
212
-static inline int usX2Y_usbframe_complete(struct snd_usX2Y_substream *capsubs,
213
-					  struct snd_usX2Y_substream *playbacksubs,
198
+static inline int usx2y_usbframe_complete(struct snd_usx2y_substream *capsubs,
199
+					  struct snd_usx2y_substream *playbacksubs,
214200 					  int frame)
215201 {
216202 	int err, state;
....@@ -218,25 +204,25 @@
218204 
219205 	state = atomic_read(&playbacksubs->state);
220206 	if (NULL != urb) {
221
-		if (state == state_RUNNING)
222
-			usX2Y_urb_play_retire(playbacksubs, urb);
223
-		else if (state >= state_PRERUNNING)
207
+		if (state == STATE_RUNNING)
208
+			usx2y_urb_play_retire(playbacksubs, urb);
209
+		else if (state >= STATE_PRERUNNING)
224210 			atomic_inc(&playbacksubs->state);
225211 	} else {
226212 		switch (state) {
227
-		case state_STARTING1:
213
+		case STATE_STARTING1:
228214 			urb = playbacksubs->urb[0];
229215 			atomic_inc(&playbacksubs->state);
230216 			break;
231
-		case state_STARTING2:
217
+		case STATE_STARTING2:
232218 			urb = playbacksubs->urb[1];
233219 			atomic_inc(&playbacksubs->state);
234220 			break;
235221 		}
236222 	}
237223 	if (urb) {
238
-		if ((err = usX2Y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb)) ||
239
-		    (err = usX2Y_urb_submit(playbacksubs, urb, frame))) {
224
+		if ((err = usx2y_urb_play_prepare(playbacksubs, capsubs->completed_urb, urb)) ||
225
+		    (err = usx2y_urb_submit(playbacksubs, urb, frame))) {
240226 			return err;
241227 		}
242228 	}
....@@ -244,13 +230,13 @@
244230 	playbacksubs->completed_urb = NULL;
245231 
246232 	state = atomic_read(&capsubs->state);
247
-	if (state >= state_PREPARED) {
248
-		if (state == state_RUNNING) {
249
-			if ((err = usX2Y_urb_capt_retire(capsubs)))
233
+	if (state >= STATE_PREPARED) {
234
+		if (state == STATE_RUNNING) {
235
+			if ((err = usx2y_urb_capt_retire(capsubs)))
250236 				return err;
251
-		} else if (state >= state_PRERUNNING)
237
+		} else if (state >= STATE_PRERUNNING)
252238 			atomic_inc(&capsubs->state);
253
-		if ((err = usX2Y_urb_submit(capsubs, capsubs->completed_urb, frame)))
239
+		if ((err = usx2y_urb_submit(capsubs, capsubs->completed_urb, frame)))
254240 			return err;
255241 	}
256242 	capsubs->completed_urb = NULL;
....@@ -258,21 +244,21 @@
258244 }
259245 
260246 
261
-static void usX2Y_clients_stop(struct usX2Ydev *usX2Y)
247
+static void usx2y_clients_stop(struct usx2ydev *usx2y)
262248 {
263249 	int s, u;
264250 
265251 	for (s = 0; s < 4; s++) {
266
-		struct snd_usX2Y_substream *subs = usX2Y->subs[s];
252
+		struct snd_usx2y_substream *subs = usx2y->subs[s];
267253 		if (subs) {
268254 			snd_printdd("%i %p state=%i\n", s, subs, atomic_read(&subs->state));
269
-			atomic_set(&subs->state, state_STOPPED);
255
+			atomic_set(&subs->state, STATE_STOPPED);
270256 		}
271257 	}
272258 	for (s = 0; s < 4; s++) {
273
-		struct snd_usX2Y_substream *subs = usX2Y->subs[s];
259
+		struct snd_usx2y_substream *subs = usx2y->subs[s];
274260 		if (subs) {
275
-			if (atomic_read(&subs->state) >= state_PRERUNNING)
261
+			if (atomic_read(&subs->state) >= STATE_PRERUNNING)
276262 				snd_pcm_stop_xrun(subs->pcm_substream);
277263 			for (u = 0; u < NRURBS; u++) {
278264 				struct urb *urb = subs->urb[u];
....@@ -282,60 +268,60 @@
282268 			}
283269 		}
284270 	}
285
-	usX2Y->prepare_subs = NULL;
286
-	wake_up(&usX2Y->prepare_wait_queue);
271
+	usx2y->prepare_subs = NULL;
272
+	wake_up(&usx2y->prepare_wait_queue);
287273 }
288274 
289
-static void usX2Y_error_urb_status(struct usX2Ydev *usX2Y,
290
-				   struct snd_usX2Y_substream *subs, struct urb *urb)
275
+static void usx2y_error_urb_status(struct usx2ydev *usx2y,
276
+				   struct snd_usx2y_substream *subs, struct urb *urb)
291277 {
292278 	snd_printk(KERN_ERR "ep=%i stalled with status=%i\n", subs->endpoint, urb->status);
293279 	urb->status = 0;
294
-	usX2Y_clients_stop(usX2Y);
280
+	usx2y_clients_stop(usx2y);
295281 }
296282 
297
-static void i_usX2Y_urb_complete(struct urb *urb)
283
+static void i_usx2y_urb_complete(struct urb *urb)
298284 {
299
-	struct snd_usX2Y_substream *subs = urb->context;
300
-	struct usX2Ydev *usX2Y = subs->usX2Y;
285
+	struct snd_usx2y_substream *subs = urb->context;
286
+	struct usx2ydev *usx2y = subs->usx2y;
301287 
302
-	if (unlikely(atomic_read(&subs->state) < state_PREPARED)) {
288
+	if (unlikely(atomic_read(&subs->state) < STATE_PREPARED)) {
303289 		snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n",
304
-			    usb_get_current_frame_number(usX2Y->dev),
290
+			    usb_get_current_frame_number(usx2y->dev),
305291 			    subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out",
306292 			    urb->status, urb->start_frame);
307293 		return;
308294 	}
309295 	if (unlikely(urb->status)) {
310
-		usX2Y_error_urb_status(usX2Y, subs, urb);
296
+		usx2y_error_urb_status(usx2y, subs, urb);
311297 		return;
312298 	}
313299 
314300 	subs->completed_urb = urb;
315301 
316302 	{
317
-		struct snd_usX2Y_substream *capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE],
318
-			*playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
303
+		struct snd_usx2y_substream *capsubs = usx2y->subs[SNDRV_PCM_STREAM_CAPTURE],
304
+			*playbacksubs = usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK];
319305 		if (capsubs->completed_urb &&
320
-		    atomic_read(&capsubs->state) >= state_PREPARED &&
306
+		    atomic_read(&capsubs->state) >= STATE_PREPARED &&
321307 		    (playbacksubs->completed_urb ||
322
-		     atomic_read(&playbacksubs->state) < state_PREPARED)) {
323
-			if (!usX2Y_usbframe_complete(capsubs, playbacksubs, urb->start_frame))
324
-				usX2Y->wait_iso_frame += nr_of_packs();
308
+		     atomic_read(&playbacksubs->state) < STATE_PREPARED)) {
309
+			if (!usx2y_usbframe_complete(capsubs, playbacksubs, urb->start_frame))
310
+				usx2y->wait_iso_frame += nr_of_packs();
325311 			else {
326312 				snd_printdd("\n");
327
-				usX2Y_clients_stop(usX2Y);
313
+				usx2y_clients_stop(usx2y);
328314 			}
329315 		}
330316 	}
331317 }
332318 
333
-static void usX2Y_urbs_set_complete(struct usX2Ydev * usX2Y,
319
+static void usx2y_urbs_set_complete(struct usx2ydev * usx2y,
334320 				    void (*complete)(struct urb *))
335321 {
336322 	int s, u;
337323 	for (s = 0; s < 4; s++) {
338
-		struct snd_usX2Y_substream *subs = usX2Y->subs[s];
324
+		struct snd_usx2y_substream *subs = usx2y->subs[s];
339325 		if (NULL != subs)
340326 			for (u = 0; u < NRURBS; u++) {
341327 				struct urb * urb = subs->urb[u];
....@@ -345,30 +331,30 @@
345331 	}
346332 }
347333 
348
-static void usX2Y_subs_startup_finish(struct usX2Ydev * usX2Y)
334
+static void usx2y_subs_startup_finish(struct usx2ydev * usx2y)
349335 {
350
-	usX2Y_urbs_set_complete(usX2Y, i_usX2Y_urb_complete);
351
-	usX2Y->prepare_subs = NULL;
336
+	usx2y_urbs_set_complete(usx2y, i_usx2y_urb_complete);
337
+	usx2y->prepare_subs = NULL;
352338 }
353339 
354
-static void i_usX2Y_subs_startup(struct urb *urb)
340
+static void i_usx2y_subs_startup(struct urb *urb)
355341 {
356
-	struct snd_usX2Y_substream *subs = urb->context;
357
-	struct usX2Ydev *usX2Y = subs->usX2Y;
358
-	struct snd_usX2Y_substream *prepare_subs = usX2Y->prepare_subs;
342
+	struct snd_usx2y_substream *subs = urb->context;
343
+	struct usx2ydev *usx2y = subs->usx2y;
344
+	struct snd_usx2y_substream *prepare_subs = usx2y->prepare_subs;
359345 	if (NULL != prepare_subs)
360346 		if (urb->start_frame == prepare_subs->urb[0]->start_frame) {
361
-			usX2Y_subs_startup_finish(usX2Y);
347
+			usx2y_subs_startup_finish(usx2y);
362348 			atomic_inc(&prepare_subs->state);
363
-			wake_up(&usX2Y->prepare_wait_queue);
349
+			wake_up(&usx2y->prepare_wait_queue);
364350 		}
365351 
366
-	i_usX2Y_urb_complete(urb);
352
+	i_usx2y_urb_complete(urb);
367353 }
368354 
369
-static void usX2Y_subs_prepare(struct snd_usX2Y_substream *subs)
355
+static void usx2y_subs_prepare(struct snd_usx2y_substream *subs)
370356 {
371
-	snd_printdd("usX2Y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n",
357
+	snd_printdd("usx2y_substream_prepare(%p) ep=%i urb0=%p urb1=%p\n",
372358 		    subs, subs->endpoint, subs->urb[0], subs->urb[1]);
373359 	/* reset the pointer */
374360 	subs->hwptr = 0;
....@@ -377,7 +363,7 @@
377363 }
378364 
379365 
380
-static void usX2Y_urb_release(struct urb **urb, int free_tb)
366
+static void usx2y_urb_release(struct urb **urb, int free_tb)
381367 {
382368 	if (*urb) {
383369 		usb_kill_urb(*urb);
....@@ -390,13 +376,13 @@
390376 /*
391377  * release a substreams urbs
392378  */
393
-static void usX2Y_urbs_release(struct snd_usX2Y_substream *subs)
379
+static void usx2y_urbs_release(struct snd_usx2y_substream *subs)
394380 {
395381 	int i;
396
-	snd_printdd("usX2Y_urbs_release() %i\n", subs->endpoint);
382
+	snd_printdd("usx2y_urbs_release() %i\n", subs->endpoint);
397383 	for (i = 0; i < NRURBS; i++)
398
-		usX2Y_urb_release(subs->urb + i,
399
-				  subs != subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK]);
384
+		usx2y_urb_release(subs->urb + i,
385
+				  subs != subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]);
400386 
401387 	kfree(subs->tmpbuf);
402388 	subs->tmpbuf = NULL;
....@@ -404,12 +390,12 @@
404390 /*
405391  * initialize a substream's urbs
406392  */
407
-static int usX2Y_urbs_allocate(struct snd_usX2Y_substream *subs)
393
+static int usx2y_urbs_allocate(struct snd_usx2y_substream *subs)
408394 {
409395 	int i;
410396 	unsigned int pipe;
411
-	int is_playback = subs == subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
412
-	struct usb_device *dev = subs->usX2Y->dev;
397
+	int is_playback = subs == subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK];
398
+	struct usb_device *dev = subs->usx2y->dev;
413399 
414400 	pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) :
415401 			usb_rcvisocpipe(dev, subs->endpoint);
....@@ -431,7 +417,7 @@
431417 		}
432418 		*purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL);
433419 		if (NULL == *purb) {
434
-			usX2Y_urbs_release(subs);
420
+			usx2y_urbs_release(subs);
435421 			return -ENOMEM;
436422 		}
437423 		if (!is_playback && !(*purb)->transfer_buffer) {
....@@ -440,7 +426,7 @@
440426 				kmalloc_array(subs->maxpacksize,
441427 					      nr_of_packs(), GFP_KERNEL);
442428 			if (NULL == (*purb)->transfer_buffer) {
443
-				usX2Y_urbs_release(subs);
429
+				usx2y_urbs_release(subs);
444430 				return -ENOMEM;
445431 			}
446432 		}
....@@ -449,43 +435,43 @@
449435 		(*purb)->number_of_packets = nr_of_packs();
450436 		(*purb)->context = subs;
451437 		(*purb)->interval = 1;
452
-		(*purb)->complete = i_usX2Y_subs_startup;
438
+		(*purb)->complete = i_usx2y_subs_startup;
453439 	}
454440 	return 0;
455441 }
456442 
457
-static void usX2Y_subs_startup(struct snd_usX2Y_substream *subs)
443
+static void usx2y_subs_startup(struct snd_usx2y_substream *subs)
458444 {
459
-	struct usX2Ydev *usX2Y = subs->usX2Y;
460
-	usX2Y->prepare_subs = subs;
445
+	struct usx2ydev *usx2y = subs->usx2y;
446
+	usx2y->prepare_subs = subs;
461447 	subs->urb[0]->start_frame = -1;
462448 	wmb();
463
-	usX2Y_urbs_set_complete(usX2Y, i_usX2Y_subs_startup);
449
+	usx2y_urbs_set_complete(usx2y, i_usx2y_subs_startup);
464450 }
465451 
466
-static int usX2Y_urbs_start(struct snd_usX2Y_substream *subs)
452
+static int usx2y_urbs_start(struct snd_usx2y_substream *subs)
467453 {
468454 	int i, err;
469
-	struct usX2Ydev *usX2Y = subs->usX2Y;
455
+	struct usx2ydev *usx2y = subs->usx2y;
470456 
471
-	if ((err = usX2Y_urbs_allocate(subs)) < 0)
457
+	if ((err = usx2y_urbs_allocate(subs)) < 0)
472458 		return err;
473459 	subs->completed_urb = NULL;
474460 	for (i = 0; i < 4; i++) {
475
-		struct snd_usX2Y_substream *subs = usX2Y->subs[i];
476
-		if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED)
461
+		struct snd_usx2y_substream *subs = usx2y->subs[i];
462
+		if (subs != NULL && atomic_read(&subs->state) >= STATE_PREPARED)
477463 			goto start;
478464 	}
479465 
480466  start:
481
-	usX2Y_subs_startup(subs);
467
+	usx2y_subs_startup(subs);
482468 	for (i = 0; i < NRURBS; i++) {
483469 		struct urb *urb = subs->urb[i];
484470 		if (usb_pipein(urb->pipe)) {
485471 			unsigned long pack;
486472 			if (0 == i)
487
-				atomic_set(&subs->state, state_STARTING3);
488
-			urb->dev = usX2Y->dev;
473
+				atomic_set(&subs->state, STATE_STARTING3);
474
+			urb->dev = usx2y->dev;
489475 			for (pack = 0; pack < nr_of_packs(); pack++) {
490476 				urb->iso_frame_desc[pack].offset = subs->maxpacksize * pack;
491477 				urb->iso_frame_desc[pack].length = subs->maxpacksize;
....@@ -497,22 +483,22 @@
497483 				goto cleanup;
498484 			} else
499485 				if (i == 0)
500
-					usX2Y->wait_iso_frame = urb->start_frame;
486
+					usx2y->wait_iso_frame = urb->start_frame;
501487 			urb->transfer_flags = 0;
502488 		} else {
503
-			atomic_set(&subs->state, state_STARTING1);
489
+			atomic_set(&subs->state, STATE_STARTING1);
504490 			break;
505491 		}
506492 	}
507493 	err = 0;
508
-	wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs);
509
-	if (atomic_read(&subs->state) != state_PREPARED)
494
+	wait_event(usx2y->prepare_wait_queue, NULL == usx2y->prepare_subs);
495
+	if (atomic_read(&subs->state) != STATE_PREPARED)
510496 		err = -EPIPE;
511497 
512498  cleanup:
513499 	if (err) {
514
-		usX2Y_subs_startup_finish(usX2Y);
515
-		usX2Y_clients_stop(usX2Y);		// something is completely wroong > stop evrything
500
+		usx2y_subs_startup_finish(usx2y);
501
+		usx2y_clients_stop(usx2y);		// something is completely wroong > stop evrything
516502 	}
517503 	return err;
518504 }
....@@ -520,33 +506,33 @@
520506 /*
521507  * return the current pcm pointer.  just return the hwptr_done value.
522508  */
523
-static snd_pcm_uframes_t snd_usX2Y_pcm_pointer(struct snd_pcm_substream *substream)
509
+static snd_pcm_uframes_t snd_usx2y_pcm_pointer(struct snd_pcm_substream *substream)
524510 {
525
-	struct snd_usX2Y_substream *subs = substream->runtime->private_data;
511
+	struct snd_usx2y_substream *subs = substream->runtime->private_data;
526512 	return subs->hwptr_done;
527513 }
528514 /*
529515  * start/stop substream
530516  */
531
-static int snd_usX2Y_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
517
+static int snd_usx2y_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
532518 {
533
-	struct snd_usX2Y_substream *subs = substream->runtime->private_data;
519
+	struct snd_usx2y_substream *subs = substream->runtime->private_data;
534520 
535521 	switch (cmd) {
536522 	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);
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);
541527 		} else {
542528 			snd_printdd("\n");
543529 			return -EPIPE;
544530 		}
545531 		break;
546532 	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);
533
+		snd_printdd("snd_usx2y_pcm_trigger(STOP)\n");
534
+		if (atomic_read(&subs->state) >= STATE_PRERUNNING)
535
+			atomic_set(&subs->state, STATE_PREPARED);
550536 		break;
551537 	default:
552538 		return -EINVAL;
....@@ -563,11 +549,11 @@
563549  * if sg buffer is supported on the later version of alsa, we'll follow
564550  * that.
565551  */
566
-static struct s_c2
552
+static const struct s_c2
567553 {
568554 	char c1, c2;
569555 }
570
-	SetRate44100[] =
556
+	setrate_44100[] =
571557 {
572558 	{ 0x14, 0x08},	// this line sets 44100, well actually a little less
573559 	{ 0x18, 0x40},	// only tascam / frontier design knows the further lines .......
....@@ -603,7 +589,7 @@
603589 	{ 0x18, 0x7C},
604590 	{ 0x18, 0x7E}
605591 };
606
-static struct s_c2 SetRate48000[] =
592
+static const struct s_c2 setrate_48000[] =
607593 {
608594 	{ 0x14, 0x09},	// this line sets 48000, well actually a little less
609595 	{ 0x18, 0x40},	// only tascam / frontier design knows the further lines .......
....@@ -639,26 +625,26 @@
639625 	{ 0x18, 0x7C},
640626 	{ 0x18, 0x7E}
641627 };
642
-#define NOOF_SETRATE_URBS ARRAY_SIZE(SetRate48000)
628
+#define NOOF_SETRATE_URBS ARRAY_SIZE(setrate_48000)
643629 
644
-static void i_usX2Y_04Int(struct urb *urb)
630
+static void i_usx2y_04int(struct urb *urb)
645631 {
646
-	struct usX2Ydev *usX2Y = urb->context;
632
+	struct usx2ydev *usx2y = urb->context;
647633 	
648634 	if (urb->status)
649
-		snd_printk(KERN_ERR "snd_usX2Y_04Int() urb->status=%i\n", urb->status);
650
-	if (0 == --usX2Y->US04->len)
651
-		wake_up(&usX2Y->In04WaitQueue);
635
+		snd_printk(KERN_ERR "snd_usx2y_04int() urb->status=%i\n", urb->status);
636
+	if (0 == --usx2y->us04->len)
637
+		wake_up(&usx2y->in04_wait_queue);
652638 }
653639 
654
-static int usX2Y_rate_set(struct usX2Ydev *usX2Y, int rate)
640
+static int usx2y_rate_set(struct usx2ydev *usx2y, int rate)
655641 {
656642 	int			err = 0, i;
657
-	struct snd_usX2Y_urbSeq	*us = NULL;
643
+	struct snd_usx2y_urb_seq	*us = NULL;
658644 	int			*usbdata = NULL;
659
-	struct s_c2		*ra = rate == 48000 ? SetRate48000 : SetRate44100;
645
+	const struct s_c2	*ra = rate == 48000 ? setrate_48000 : setrate_44100;
660646 
661
-	if (usX2Y->rate != rate) {
647
+	if (usx2y->rate != rate) {
662648 		us = kzalloc(sizeof(*us) + sizeof(struct urb*) * NOOF_SETRATE_URBS, GFP_KERNEL);
663649 		if (NULL == us) {
664650 			err = -ENOMEM;
....@@ -677,17 +663,17 @@
677663 			}
678664 			((char*)(usbdata + i))[0] = ra[i].c1;
679665 			((char*)(usbdata + i))[1] = ra[i].c2;
680
-			usb_fill_bulk_urb(us->urb[i], usX2Y->dev, usb_sndbulkpipe(usX2Y->dev, 4),
681
-					  usbdata + i, 2, i_usX2Y_04Int, usX2Y);
666
+			usb_fill_bulk_urb(us->urb[i], usx2y->dev, usb_sndbulkpipe(usx2y->dev, 4),
667
+					  usbdata + i, 2, i_usx2y_04int, usx2y);
682668 		}
683669 		err = usb_urb_ep_type_check(us->urb[0]);
684670 		if (err < 0)
685671 			goto cleanup;
686672 		us->submitted =	0;
687673 		us->len =	NOOF_SETRATE_URBS;
688
-		usX2Y->US04 =	us;
689
-		wait_event_timeout(usX2Y->In04WaitQueue, 0 == us->len, HZ);
690
-		usX2Y->US04 =	NULL;
674
+		usx2y->us04 =	us;
675
+		wait_event_timeout(usx2y->in04_wait_queue, 0 == us->len, HZ);
676
+		usx2y->us04 =	NULL;
691677 		if (us->len)
692678 			err = -ENODEV;
693679 	cleanup:
....@@ -704,11 +690,11 @@
704690 				}
705691 				usb_free_urb(urb);
706692 			}
707
-			usX2Y->US04 = NULL;
693
+			usx2y->us04 = NULL;
708694 			kfree(usbdata);
709695 			kfree(us);
710696 			if (!err)
711
-				usX2Y->rate = rate;
697
+				usx2y->rate = rate;
712698 		}
713699 	}
714700 
....@@ -716,53 +702,53 @@
716702 }
717703 
718704 
719
-static int usX2Y_format_set(struct usX2Ydev *usX2Y, snd_pcm_format_t format)
705
+static int usx2y_format_set(struct usx2ydev *usx2y, snd_pcm_format_t format)
720706 {
721707 	int alternate, err;
722708 	struct list_head* p;
723709 	if (format == SNDRV_PCM_FORMAT_S24_3LE) {
724710 		alternate = 2;
725
-		usX2Y->stride = 6;
711
+		usx2y->stride = 6;
726712 	} else {
727713 		alternate = 1;
728
-		usX2Y->stride = 4;
714
+		usx2y->stride = 4;
729715 	}
730
-	list_for_each(p, &usX2Y->midi_list) {
716
+	list_for_each(p, &usx2y->midi_list) {
731717 		snd_usbmidi_input_stop(p);
732718 	}
733
-	usb_kill_urb(usX2Y->In04urb);
734
-	if ((err = usb_set_interface(usX2Y->dev, 0, alternate))) {
719
+	usb_kill_urb(usx2y->in04_urb);
720
+	if ((err = usb_set_interface(usx2y->dev, 0, alternate))) {
735721 		snd_printk(KERN_ERR "usb_set_interface error \n");
736722 		return err;
737723 	}
738
-	usX2Y->In04urb->dev = usX2Y->dev;
739
-	err = usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
740
-	list_for_each(p, &usX2Y->midi_list) {
724
+	usx2y->in04_urb->dev = usx2y->dev;
725
+	err = usb_submit_urb(usx2y->in04_urb, GFP_KERNEL);
726
+	list_for_each(p, &usx2y->midi_list) {
741727 		snd_usbmidi_input_start(p);
742728 	}
743
-	usX2Y->format = format;
744
-	usX2Y->rate = 0;
729
+	usx2y->format = format;
730
+	usx2y->rate = 0;
745731 	return err;
746732 }
747733 
748734 
749
-static int snd_usX2Y_pcm_hw_params(struct snd_pcm_substream *substream,
735
+static int snd_usx2y_pcm_hw_params(struct snd_pcm_substream *substream,
750736 				   struct snd_pcm_hw_params *hw_params)
751737 {
752738 	int			err = 0;
753739 	unsigned int		rate = params_rate(hw_params);
754740 	snd_pcm_format_t	format = params_format(hw_params);
755741 	struct snd_card *card = substream->pstr->pcm->card;
756
-	struct usX2Ydev	*dev = usX2Y(card);
742
+	struct usx2ydev	*dev = usx2y(card);
757743 	int i;
758744 
759
-	mutex_lock(&usX2Y(card)->pcm_mutex);
760
-	snd_printdd("snd_usX2Y_hw_params(%p, %p)\n", substream, hw_params);
761
-	/* all pcm substreams off one usX2Y have to operate at the same
745
+	mutex_lock(&usx2y(card)->pcm_mutex);
746
+	snd_printdd("snd_usx2y_hw_params(%p, %p)\n", substream, hw_params);
747
+	/* all pcm substreams off one usx2y have to operate at the same
762748 	 * rate & format
763749 	 */
764750 	for (i = 0; i < dev->pcm_devs * 2; i++) {
765
-		struct snd_usX2Y_substream *subs = dev->subs[i];
751
+		struct snd_usx2y_substream *subs = dev->subs[i];
766752 		struct snd_pcm_substream *test_substream;
767753 
768754 		if (!subs)
....@@ -780,89 +766,81 @@
780766 		}
781767 	}
782768 
783
-	err = snd_pcm_lib_malloc_pages(substream,
784
-				       params_buffer_bytes(hw_params));
785
-	if (err < 0) {
786
-		snd_printk(KERN_ERR "snd_pcm_lib_malloc_pages(%p, %i) returned %i\n",
787
-			   substream, params_buffer_bytes(hw_params), err);
788
-		goto error;
789
-	}
790
-
791769  error:
792
-	mutex_unlock(&usX2Y(card)->pcm_mutex);
770
+	mutex_unlock(&usx2y(card)->pcm_mutex);
793771 	return err;
794772 }
795773 
796774 /*
797775  * free the buffer
798776  */
799
-static int snd_usX2Y_pcm_hw_free(struct snd_pcm_substream *substream)
777
+static int snd_usx2y_pcm_hw_free(struct snd_pcm_substream *substream)
800778 {
801779 	struct snd_pcm_runtime *runtime = substream->runtime;
802
-	struct snd_usX2Y_substream *subs = runtime->private_data;
803
-	mutex_lock(&subs->usX2Y->pcm_mutex);
804
-	snd_printdd("snd_usX2Y_hw_free(%p)\n", substream);
780
+	struct snd_usx2y_substream *subs = runtime->private_data;
781
+	mutex_lock(&subs->usx2y->pcm_mutex);
782
+	snd_printdd("snd_usx2y_hw_free(%p)\n", substream);
805783 
806784 	if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) {
807
-		struct snd_usX2Y_substream *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
808
-		atomic_set(&subs->state, state_STOPPED);
809
-		usX2Y_urbs_release(subs);
785
+		struct snd_usx2y_substream *cap_subs = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE];
786
+		atomic_set(&subs->state, STATE_STOPPED);
787
+		usx2y_urbs_release(subs);
810788 		if (!cap_subs->pcm_substream ||
811789 		    !cap_subs->pcm_substream->runtime ||
812790 		    !cap_subs->pcm_substream->runtime->status ||
813791 		    cap_subs->pcm_substream->runtime->status->state < SNDRV_PCM_STATE_PREPARED) {
814
-			atomic_set(&cap_subs->state, state_STOPPED);
815
-			usX2Y_urbs_release(cap_subs);
792
+			atomic_set(&cap_subs->state, STATE_STOPPED);
793
+			usx2y_urbs_release(cap_subs);
816794 		}
817795 	} else {
818
-		struct snd_usX2Y_substream *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
819
-		if (atomic_read(&playback_subs->state) < state_PREPARED) {
820
-			atomic_set(&subs->state, state_STOPPED);
821
-			usX2Y_urbs_release(subs);
796
+		struct snd_usx2y_substream *playback_subs = subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK];
797
+		if (atomic_read(&playback_subs->state) < STATE_PREPARED) {
798
+			atomic_set(&subs->state, STATE_STOPPED);
799
+			usx2y_urbs_release(subs);
822800 		}
823801 	}
824
-	mutex_unlock(&subs->usX2Y->pcm_mutex);
825
-	return snd_pcm_lib_free_pages(substream);
802
+	mutex_unlock(&subs->usx2y->pcm_mutex);
803
+	return 0;
826804 }
827805 /*
828806  * prepare callback
829807  *
830808  * set format and initialize urbs
831809  */
832
-static int snd_usX2Y_pcm_prepare(struct snd_pcm_substream *substream)
810
+static int snd_usx2y_pcm_prepare(struct snd_pcm_substream *substream)
833811 {
834812 	struct snd_pcm_runtime *runtime = substream->runtime;
835
-	struct snd_usX2Y_substream *subs = runtime->private_data;
836
-	struct usX2Ydev *usX2Y = subs->usX2Y;
837
-	struct snd_usX2Y_substream *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
813
+	struct snd_usx2y_substream *subs = runtime->private_data;
814
+	struct usx2ydev *usx2y = subs->usx2y;
815
+	struct snd_usx2y_substream *capsubs = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE];
838816 	int err = 0;
839
-	snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream);
817
+	snd_printdd("snd_usx2y_pcm_prepare(%p)\n", substream);
840818 
841
-	mutex_lock(&usX2Y->pcm_mutex);
842
-	usX2Y_subs_prepare(subs);
819
+	mutex_lock(&usx2y->pcm_mutex);
820
+	usx2y_subs_prepare(subs);
843821 // Start hardware streams
844822 // SyncStream first....
845
-	if (atomic_read(&capsubs->state) < state_PREPARED) {
846
-		if (usX2Y->format != runtime->format)
847
-			if ((err = usX2Y_format_set(usX2Y, runtime->format)) < 0)
823
+	if (atomic_read(&capsubs->state) < STATE_PREPARED) {
824
+		if (usx2y->format != runtime->format)
825
+			if ((err = usx2y_format_set(usx2y, runtime->format)) < 0)
848826 				goto up_prepare_mutex;
849
-		if (usX2Y->rate != runtime->rate)
850
-			if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0)
827
+		if (usx2y->rate != runtime->rate)
828
+			if ((err = usx2y_rate_set(usx2y, runtime->rate)) < 0)
851829 				goto up_prepare_mutex;
852830 		snd_printdd("starting capture pipe for %s\n", subs == capsubs ? "self" : "playpipe");
853
-		if (0 > (err = usX2Y_urbs_start(capsubs)))
831
+		if (0 > (err = usx2y_urbs_start(capsubs)))
854832 			goto up_prepare_mutex;
855833 	}
856834 
857
-	if (subs != capsubs && atomic_read(&subs->state) < state_PREPARED)
858
-		err = usX2Y_urbs_start(subs);
835
+	if (subs != capsubs && atomic_read(&subs->state) < STATE_PREPARED)
836
+		err = usx2y_urbs_start(subs);
859837 
860838  up_prepare_mutex:
861
-	mutex_unlock(&usX2Y->pcm_mutex);
839
+	mutex_unlock(&usx2y->pcm_mutex);
862840 	return err;
863841 }
864842 
865
-static struct snd_pcm_hardware snd_usX2Y_2c =
843
+static const struct snd_pcm_hardware snd_usx2y_2c =
866844 {
867845 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
868846 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
....@@ -884,16 +862,16 @@
884862 
885863 
886864 
887
-static int snd_usX2Y_pcm_open(struct snd_pcm_substream *substream)
865
+static int snd_usx2y_pcm_open(struct snd_pcm_substream *substream)
888866 {
889
-	struct snd_usX2Y_substream	*subs = ((struct snd_usX2Y_substream **)
867
+	struct snd_usx2y_substream	*subs = ((struct snd_usx2y_substream **)
890868 					 snd_pcm_substream_chip(substream))[substream->stream];
891869 	struct snd_pcm_runtime	*runtime = substream->runtime;
892870 
893
-	if (subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS)
871
+	if (subs->usx2y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS)
894872 		return -EBUSY;
895873 
896
-	runtime->hw = snd_usX2Y_2c;
874
+	runtime->hw = snd_usx2y_2c;
897875 	runtime->private_data = subs;
898876 	subs->pcm_substream = substream;
899877 	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000);
....@@ -902,10 +880,10 @@
902880 
903881 
904882 
905
-static int snd_usX2Y_pcm_close(struct snd_pcm_substream *substream)
883
+static int snd_usx2y_pcm_close(struct snd_pcm_substream *substream)
906884 {
907885 	struct snd_pcm_runtime *runtime = substream->runtime;
908
-	struct snd_usX2Y_substream *subs = runtime->private_data;
886
+	struct snd_usx2y_substream *subs = runtime->private_data;
909887 
910888 	subs->pcm_substream = NULL;
911889 
....@@ -913,89 +891,88 @@
913891 }
914892 
915893 
916
-static const struct snd_pcm_ops snd_usX2Y_pcm_ops =
894
+static const struct snd_pcm_ops snd_usx2y_pcm_ops =
917895 {
918
-	.open =		snd_usX2Y_pcm_open,
919
-	.close =	snd_usX2Y_pcm_close,
920
-	.ioctl =	snd_pcm_lib_ioctl,
921
-	.hw_params =	snd_usX2Y_pcm_hw_params,
922
-	.hw_free =	snd_usX2Y_pcm_hw_free,
923
-	.prepare =	snd_usX2Y_pcm_prepare,
924
-	.trigger =	snd_usX2Y_pcm_trigger,
925
-	.pointer =	snd_usX2Y_pcm_pointer,
896
+	.open =		snd_usx2y_pcm_open,
897
+	.close =	snd_usx2y_pcm_close,
898
+	.hw_params =	snd_usx2y_pcm_hw_params,
899
+	.hw_free =	snd_usx2y_pcm_hw_free,
900
+	.prepare =	snd_usx2y_pcm_prepare,
901
+	.trigger =	snd_usx2y_pcm_trigger,
902
+	.pointer =	snd_usx2y_pcm_pointer,
926903 };
927904 
928905 
929906 /*
930907  * free a usb stream instance
931908  */
932
-static void usX2Y_audio_stream_free(struct snd_usX2Y_substream **usX2Y_substream)
909
+static void usx2y_audio_stream_free(struct snd_usx2y_substream **usx2y_substream)
933910 {
934
-	kfree(usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]);
935
-	usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK] = NULL;
911
+	int stream;
936912 
937
-	kfree(usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]);
938
-	usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE] = NULL;
913
+	for_each_pcm_streams(stream) {
914
+		kfree(usx2y_substream[stream]);
915
+		usx2y_substream[stream] = NULL;
916
+	}
939917 }
940918 
941
-static void snd_usX2Y_pcm_private_free(struct snd_pcm *pcm)
919
+static void snd_usx2y_pcm_private_free(struct snd_pcm *pcm)
942920 {
943
-	struct snd_usX2Y_substream **usX2Y_stream = pcm->private_data;
944
-	if (usX2Y_stream)
945
-		usX2Y_audio_stream_free(usX2Y_stream);
921
+	struct snd_usx2y_substream **usx2y_stream = pcm->private_data;
922
+	if (usx2y_stream)
923
+		usx2y_audio_stream_free(usx2y_stream);
946924 }
947925 
948
-static int usX2Y_audio_stream_new(struct snd_card *card, int playback_endpoint, int capture_endpoint)
926
+static int usx2y_audio_stream_new(struct snd_card *card, int playback_endpoint, int capture_endpoint)
949927 {
950928 	struct snd_pcm *pcm;
951929 	int err, i;
952
-	struct snd_usX2Y_substream **usX2Y_substream =
953
-		usX2Y(card)->subs + 2 * usX2Y(card)->pcm_devs;
930
+	struct snd_usx2y_substream **usx2y_substream =
931
+		usx2y(card)->subs + 2 * usx2y(card)->pcm_devs;
954932 
955933 	for (i = playback_endpoint ? SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE;
956934 	     i <= SNDRV_PCM_STREAM_CAPTURE; ++i) {
957
-		usX2Y_substream[i] = kzalloc(sizeof(struct snd_usX2Y_substream), GFP_KERNEL);
958
-		if (!usX2Y_substream[i])
935
+		usx2y_substream[i] = kzalloc(sizeof(struct snd_usx2y_substream), GFP_KERNEL);
936
+		if (!usx2y_substream[i])
959937 			return -ENOMEM;
960938 
961
-		usX2Y_substream[i]->usX2Y = usX2Y(card);
939
+		usx2y_substream[i]->usx2y = usx2y(card);
962940 	}
963941 
964942 	if (playback_endpoint)
965
-		usX2Y_substream[SNDRV_PCM_STREAM_PLAYBACK]->endpoint = playback_endpoint;
966
-	usX2Y_substream[SNDRV_PCM_STREAM_CAPTURE]->endpoint = capture_endpoint;
943
+		usx2y_substream[SNDRV_PCM_STREAM_PLAYBACK]->endpoint = playback_endpoint;
944
+	usx2y_substream[SNDRV_PCM_STREAM_CAPTURE]->endpoint = capture_endpoint;
967945 
968
-	err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usX2Y(card)->pcm_devs,
946
+	err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usx2y(card)->pcm_devs,
969947 			  playback_endpoint ? 1 : 0, 1,
970948 			  &pcm);
971949 	if (err < 0) {
972
-		usX2Y_audio_stream_free(usX2Y_substream);
950
+		usx2y_audio_stream_free(usx2y_substream);
973951 		return err;
974952 	}
975953 
976954 	if (playback_endpoint)
977
-		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usX2Y_pcm_ops);
978
-	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_pcm_ops);
955
+		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usx2y_pcm_ops);
956
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usx2y_pcm_ops);
979957 
980
-	pcm->private_data = usX2Y_substream;
981
-	pcm->private_free = snd_usX2Y_pcm_private_free;
958
+	pcm->private_data = usx2y_substream;
959
+	pcm->private_free = snd_usx2y_pcm_private_free;
982960 	pcm->info_flags = 0;
983961 
984
-	sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usX2Y(card)->pcm_devs);
962
+	sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usx2y(card)->pcm_devs);
985963 
986
-	if ((playback_endpoint &&
987
-	     0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream,
988
-						     SNDRV_DMA_TYPE_CONTINUOUS,
989
-						     snd_dma_continuous_data(GFP_KERNEL),
990
-						     64*1024, 128*1024))) ||
991
-	    0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
992
-	    					     SNDRV_DMA_TYPE_CONTINUOUS,
993
-	    					     snd_dma_continuous_data(GFP_KERNEL),
994
-						     64*1024, 128*1024))) {
995
-		snd_usX2Y_pcm_private_free(pcm);
996
-		return err;
964
+	if (playback_endpoint) {
965
+		snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream,
966
+					   SNDRV_DMA_TYPE_CONTINUOUS,
967
+					   NULL,
968
+					   64*1024, 128*1024);
997969 	}
998
-	usX2Y(card)->pcm_devs++;
970
+
971
+	snd_pcm_set_managed_buffer(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
972
+				   SNDRV_DMA_TYPE_CONTINUOUS,
973
+				   NULL,
974
+				   64*1024, 128*1024);
975
+	usx2y(card)->pcm_devs++;
999976 
1000977 	return 0;
1001978 }
....@@ -1003,18 +980,18 @@
1003980 /*
1004981  * create a chip instance and set its names.
1005982  */
1006
-int usX2Y_audio_create(struct snd_card *card)
983
+int usx2y_audio_create(struct snd_card *card)
1007984 {
1008985 	int err = 0;
1009986 	
1010
-	INIT_LIST_HEAD(&usX2Y(card)->pcm_list);
987
+	INIT_LIST_HEAD(&usx2y(card)->pcm_list);
1011988 
1012
-	if (0 > (err = usX2Y_audio_stream_new(card, 0xA, 0x8)))
989
+	if (0 > (err = usx2y_audio_stream_new(card, 0xA, 0x8)))
1013990 		return err;
1014
-	if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) == USB_ID_US428)
1015
-	     if (0 > (err = usX2Y_audio_stream_new(card, 0, 0xA)))
991
+	if (le16_to_cpu(usx2y(card)->dev->descriptor.idProduct) == USB_ID_US428)
992
+	     if (0 > (err = usx2y_audio_stream_new(card, 0, 0xA)))
1016993 		     return err;
1017
-	if (le16_to_cpu(usX2Y(card)->dev->descriptor.idProduct) != USB_ID_US122)
1018
-		err = usX2Y_rate_set(usX2Y(card), 44100);	// Lets us428 recognize output-volume settings, disturbs us122.
994
+	if (le16_to_cpu(usx2y(card)->dev->descriptor.idProduct) != USB_ID_US122)
995
+		err = usx2y_rate_set(usx2y(card), 44100);	// Lets us428 recognize output-volume settings, disturbs us122.
1019996 	return err;
1020997 }