forked from ~ljy/RK356X_SDK_RELEASE
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hc
2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376 
 kernel/sound/usb/usx2y/usbusx2y.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * usbusy2y.c - ALSA USB US-428 Driver
34  *
....@@ -16,7 +17,7 @@
1617 
1718 2004-10-26 Karsten Wiese
1819 	Version 0.8.6:
19
-	wake_up() process waiting in usX2Y_urbs_start() on error.
20
+	wake_up() process waiting in usx2y_urbs_start() on error.
2021 
2122 2004-10-21 Karsten Wiese
2223 	Version 0.8.5:
....@@ -47,7 +48,7 @@
4748 2004-06-12 Karsten Wiese
4849 	Version 0.6.3:
4950 	Made it thus the following rule is enforced:
50
-	"All pcm substreams of one usX2Y have to operate at the same rate & format."
51
+	"All pcm substreams of one usx2y have to operate at the same rate & format."
5152 
5253 2004-04-06 Karsten Wiese
5354 	Version 0.6.0:
....@@ -114,20 +115,6 @@
114115 	The firmware has been sniffed from win2k us-428 driver 3.09.
115116 
116117  *   Copyright (c) 2002 - 2004 Karsten Wiese
117
- *
118
- *   This program is free software; you can redistribute it and/or modify
119
- *   it under the terms of the GNU General Public License as published by
120
- *   the Free Software Foundation; either version 2 of the License, or
121
- *   (at your option) any later version.
122
- *
123
- *   This program is distributed in the hope that it will be useful,
124
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
125
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
126
- *   GNU General Public License for more details.
127
- *
128
- *   You should have received a copy of the GNU General Public License
129
- *   along with this program; if not, write to the Free Software
130
- *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
131118 */
132119 
133120 #include <linux/init.h>
....@@ -164,163 +151,161 @@
164151 MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
165152 
166153 
167
-static int snd_usX2Y_card_used[SNDRV_CARDS];
154
+static int snd_usx2y_card_used[SNDRV_CARDS];
168155 
169
-static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
170
-static void snd_usX2Y_card_private_free(struct snd_card *card);
156
+static void usx2y_usb_disconnect(struct usb_device* usb_device, void* ptr);
157
+static void snd_usx2y_card_private_free(struct snd_card *card);
171158 
172159 /* 
173160  * pipe 4 is used for switching the lamps, setting samplerate, volumes ....   
174161  */
175
-static void i_usX2Y_Out04Int(struct urb *urb)
162
+static void i_usx2y_out04_int(struct urb *urb)
176163 {
177164 #ifdef CONFIG_SND_DEBUG
178165 	if (urb->status) {
179166 		int 		i;
180
-		struct usX2Ydev *usX2Y = urb->context;
181
-		for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++);
182
-		snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status);
167
+		struct usx2ydev *usx2y = urb->context;
168
+		for (i = 0; i < 10 && usx2y->as04.urb[i] != urb; i++);
169
+		snd_printdd("i_usx2y_out04_int() urb %i status=%i\n", i, urb->status);
183170 	}
184171 #endif
185172 }
186173 
187
-static void i_usX2Y_In04Int(struct urb *urb)
174
+static void i_usx2y_in04_int(struct urb *urb)
188175 {
189176 	int			err = 0;
190
-	struct usX2Ydev		*usX2Y = urb->context;
191
-	struct us428ctls_sharedmem	*us428ctls = usX2Y->us428ctls_sharedmem;
177
+	struct usx2ydev		*usx2y = urb->context;
178
+	struct us428ctls_sharedmem	*us428ctls = usx2y->us428ctls_sharedmem;
192179 
193
-	usX2Y->In04IntCalls++;
180
+	usx2y->in04_int_calls++;
194181 
195182 	if (urb->status) {
196183 		snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
197184 		return;
198185 	}
199186 
200
-	//	printk("%i:0x%02X ", 8, (int)((unsigned char*)usX2Y->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
187
+	//	printk("%i:0x%02X ", 8, (int)((unsigned char*)usx2y->in04_buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
201188 	if (us428ctls) {
202189 		int diff = -1;
203
-		if (-2 == us428ctls->CtlSnapShotLast) {
190
+		if (-2 == us428ctls->ctl_snapshot_last) {
204191 			diff = 0;
205
-			memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last));
206
-			us428ctls->CtlSnapShotLast = -1;
192
+			memcpy(usx2y->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_last));
193
+			us428ctls->ctl_snapshot_last = -1;
207194 		} else {
208195 			int i;
209196 			for (i = 0; i < 21; i++) {
210
-				if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) {
197
+				if (usx2y->in04_last[i] != ((char*)usx2y->in04_buf)[i]) {
211198 					if (diff < 0)
212199 						diff = i;
213
-					usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i];
200
+					usx2y->in04_last[i] = ((char*)usx2y->in04_buf)[i];
214201 				}
215202 			}
216203 		}
217204 		if (0 <= diff) {
218
-			int n = us428ctls->CtlSnapShotLast + 1;
219
-			if (n >= N_us428_ctl_BUFS  ||  n < 0)
205
+			int n = us428ctls->ctl_snapshot_last + 1;
206
+			if (n >= N_US428_CTL_BUFS  ||  n < 0)
220207 				n = 0;
221
-			memcpy(us428ctls->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0]));
222
-			us428ctls->CtlSnapShotDiffersAt[n] = diff;
223
-			us428ctls->CtlSnapShotLast = n;
224
-			wake_up(&usX2Y->us428ctls_wait_queue_head);
208
+			memcpy(us428ctls->ctl_snapshot + n, usx2y->in04_buf, sizeof(us428ctls->ctl_snapshot[0]));
209
+			us428ctls->ctl_snapshot_differs_at[n] = diff;
210
+			us428ctls->ctl_snapshot_last = n;
211
+			wake_up(&usx2y->us428ctls_wait_queue_head);
225212 		}
226213 	}
227214 	
228215 	
229
-	if (usX2Y->US04) {
230
-		if (0 == usX2Y->US04->submitted)
216
+	if (usx2y->us04) {
217
+		if (0 == usx2y->us04->submitted)
231218 			do {
232
-				err = usb_submit_urb(usX2Y->US04->urb[usX2Y->US04->submitted++], GFP_ATOMIC);
233
-			} while (!err && usX2Y->US04->submitted < usX2Y->US04->len);
219
+				err = usb_submit_urb(usx2y->us04->urb[usx2y->us04->submitted++], GFP_ATOMIC);
220
+			} while (!err && usx2y->us04->submitted < usx2y->us04->len);
234221 	} else
235
-		if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) {
236
-			if (us428ctls->p4outLast != us428ctls->p4outSent) {
237
-				int j, send = us428ctls->p4outSent + 1;
238
-				if (send >= N_us428_p4out_BUFS)
222
+		if (us428ctls && us428ctls->p4out_last >= 0 && us428ctls->p4out_last < N_US428_P4OUT_BUFS) {
223
+			if (us428ctls->p4out_last != us428ctls->p4out_sent) {
224
+				int j, send = us428ctls->p4out_sent + 1;
225
+				if (send >= N_US428_P4OUT_BUFS)
239226 					send = 0;
240
-				for (j = 0; j < URBS_AsyncSeq  &&  !err; ++j)
241
-					if (0 == usX2Y->AS04.urb[j]->status) {
227
+				for (j = 0; j < URBS_ASYNC_SEQ  &&  !err; ++j)
228
+					if (0 == usx2y->as04.urb[j]->status) {
242229 						struct us428_p4out *p4out = us428ctls->p4out + send;	// FIXME if more than 1 p4out is new, 1 gets lost.
243
-						usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->dev,
244
-								  usb_sndbulkpipe(usX2Y->dev, 0x04), &p4out->val.vol,
245
-								  p4out->type == eLT_Light ? sizeof(struct us428_lights) : 5,
246
-								  i_usX2Y_Out04Int, usX2Y);
247
-						err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC);
248
-						us428ctls->p4outSent = send;
230
+						usb_fill_bulk_urb(usx2y->as04.urb[j], usx2y->dev,
231
+								  usb_sndbulkpipe(usx2y->dev, 0x04), &p4out->val.vol,
232
+								  p4out->type == ELT_LIGHT ? sizeof(struct us428_lights) : 5,
233
+								  i_usx2y_out04_int, usx2y);
234
+						err = usb_submit_urb(usx2y->as04.urb[j], GFP_ATOMIC);
235
+						us428ctls->p4out_sent = send;
249236 						break;
250237 					}
251238 			}
252239 		}
253240 
254241 	if (err)
255
-		snd_printk(KERN_ERR "In04Int() usb_submit_urb err=%i\n", err);
242
+		snd_printk(KERN_ERR "in04_int() usb_submit_urb err=%i\n", err);
256243 
257
-	urb->dev = usX2Y->dev;
244
+	urb->dev = usx2y->dev;
258245 	usb_submit_urb(urb, GFP_ATOMIC);
259246 }
260247 
261248 /*
262249  * Prepare some urbs
263250  */
264
-int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y)
251
+int usx2y_async_seq04_init(struct usx2ydev *usx2y)
265252 {
266253 	int	err = 0,
267254 		i;
268255 
269
-	usX2Y->AS04.buffer = kmalloc_array(URBS_AsyncSeq,
270
-					   URB_DataLen_AsyncSeq, GFP_KERNEL);
271
-	if (NULL == usX2Y->AS04.buffer) {
256
+	usx2y->as04.buffer = kmalloc_array(URBS_ASYNC_SEQ,
257
+					   URB_DATA_LEN_ASYNC_SEQ, GFP_KERNEL);
258
+	if (NULL == usx2y->as04.buffer) {
272259 		err = -ENOMEM;
273260 	} else
274
-		for (i = 0; i < URBS_AsyncSeq; ++i) {
275
-			if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
261
+		for (i = 0; i < URBS_ASYNC_SEQ; ++i) {
262
+			if (NULL == (usx2y->as04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
276263 				err = -ENOMEM;
277264 				break;
278265 			}
279
-			usb_fill_bulk_urb(	usX2Y->AS04.urb[i], usX2Y->dev,
280
-						usb_sndbulkpipe(usX2Y->dev, 0x04),
281
-						usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
282
-						i_usX2Y_Out04Int, usX2Y
266
+			usb_fill_bulk_urb(	usx2y->as04.urb[i], usx2y->dev,
267
+						usb_sndbulkpipe(usx2y->dev, 0x04),
268
+						usx2y->as04.buffer + URB_DATA_LEN_ASYNC_SEQ*i, 0,
269
+						i_usx2y_out04_int, usx2y
283270 				);
284
-			err = usb_urb_ep_type_check(usX2Y->AS04.urb[i]);
271
+			err = usb_urb_ep_type_check(usx2y->as04.urb[i]);
285272 			if (err < 0)
286273 				break;
287274 		}
288275 	return err;
289276 }
290277 
291
-int usX2Y_In04_init(struct usX2Ydev *usX2Y)
278
+int usx2y_in04_init(struct usx2ydev *usx2y)
292279 {
293
-	if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
280
+	if (! (usx2y->in04_urb = usb_alloc_urb(0, GFP_KERNEL)))
294281 		return -ENOMEM;
295282 
296
-	if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) {
297
-		usb_free_urb(usX2Y->In04urb);
283
+	if (! (usx2y->in04_buf = kmalloc(21, GFP_KERNEL)))
298284 		return -ENOMEM;
299
-	}
300285 	 
301
-	init_waitqueue_head(&usX2Y->In04WaitQueue);
302
-	usb_fill_int_urb(usX2Y->In04urb, usX2Y->dev, usb_rcvintpipe(usX2Y->dev, 0x4),
303
-			 usX2Y->In04Buf, 21,
304
-			 i_usX2Y_In04Int, usX2Y,
286
+	init_waitqueue_head(&usx2y->in04_wait_queue);
287
+	usb_fill_int_urb(usx2y->in04_urb, usx2y->dev, usb_rcvintpipe(usx2y->dev, 0x4),
288
+			 usx2y->in04_buf, 21,
289
+			 i_usx2y_in04_int, usx2y,
305290 			 10);
306
-	if (usb_urb_ep_type_check(usX2Y->In04urb))
291
+	if (usb_urb_ep_type_check(usx2y->in04_urb))
307292 		return -EINVAL;
308
-	return usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
293
+	return usb_submit_urb(usx2y->in04_urb, GFP_KERNEL);
309294 }
310295 
311
-static void usX2Y_unlinkSeq(struct snd_usX2Y_AsyncSeq *S)
296
+static void usx2y_unlinkseq(struct snd_usx2y_async_seq *s)
312297 {
313298 	int	i;
314
-	for (i = 0; i < URBS_AsyncSeq; ++i) {
315
-		usb_kill_urb(S->urb[i]);
316
-		usb_free_urb(S->urb[i]);
317
-		S->urb[i] = NULL;
299
+	for (i = 0; i < URBS_ASYNC_SEQ; ++i) {
300
+		usb_kill_urb(s->urb[i]);
301
+		usb_free_urb(s->urb[i]);
302
+		s->urb[i] = NULL;
318303 	}
319
-	kfree(S->buffer);
304
+	kfree(s->buffer);
320305 }
321306 
322307 
323
-static const struct usb_device_id snd_usX2Y_usb_id_table[] = {
308
+static const struct usb_device_id snd_usx2y_usb_id_table[] = {
324309 	{
325310 		.match_flags =	USB_DEVICE_ID_MATCH_DEVICE,
326311 		.idVendor =	0x1604,
....@@ -339,7 +324,7 @@
339324 	{ /* terminator */ }
340325 };
341326 
342
-static int usX2Y_create_card(struct usb_device *device,
327
+static int usx2y_create_card(struct usb_device *device,
343328 			     struct usb_interface *intf,
344329 			     struct snd_card **cardp)
345330 {
....@@ -348,20 +333,20 @@
348333 	int err;
349334 
350335 	for (dev = 0; dev < SNDRV_CARDS; ++dev)
351
-		if (enable[dev] && !snd_usX2Y_card_used[dev])
336
+		if (enable[dev] && !snd_usx2y_card_used[dev])
352337 			break;
353338 	if (dev >= SNDRV_CARDS)
354339 		return -ENODEV;
355340 	err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE,
356
-			   sizeof(struct usX2Ydev), &card);
341
+			   sizeof(struct usx2ydev), &card);
357342 	if (err < 0)
358343 		return err;
359
-	snd_usX2Y_card_used[usX2Y(card)->card_index = dev] = 1;
360
-	card->private_free = snd_usX2Y_card_private_free;
361
-	usX2Y(card)->dev = device;
362
-	init_waitqueue_head(&usX2Y(card)->prepare_wait_queue);
363
-	mutex_init(&usX2Y(card)->pcm_mutex);
364
-	INIT_LIST_HEAD(&usX2Y(card)->midi_list);
344
+	snd_usx2y_card_used[usx2y(card)->card_index = dev] = 1;
345
+	card->private_free = snd_usx2y_card_private_free;
346
+	usx2y(card)->dev = device;
347
+	init_waitqueue_head(&usx2y(card)->prepare_wait_queue);
348
+	mutex_init(&usx2y(card)->pcm_mutex);
349
+	INIT_LIST_HEAD(&usx2y(card)->midi_list);
365350 	strcpy(card->driver, "USB "NAME_ALLCAPS"");
366351 	sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
367352 	sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
....@@ -369,14 +354,14 @@
369354 		le16_to_cpu(device->descriptor.idVendor),
370355 		le16_to_cpu(device->descriptor.idProduct),
371356 		0,//us428(card)->usbmidi.ifnum,
372
-		usX2Y(card)->dev->bus->busnum, usX2Y(card)->dev->devnum
357
+		usx2y(card)->dev->bus->busnum, usx2y(card)->dev->devnum
373358 		);
374359 	*cardp = card;
375360 	return 0;
376361 }
377362 
378363 
379
-static int usX2Y_usb_probe(struct usb_device *device,
364
+static int usx2y_usb_probe(struct usb_device *device,
380365 			   struct usb_interface *intf,
381366 			   const struct usb_device_id *device_id,
382367 			   struct snd_card **cardp)
....@@ -391,10 +376,10 @@
391376 	     le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428))
392377 		return -EINVAL;
393378 
394
-	err = usX2Y_create_card(device, intf, &card);
379
+	err = usx2y_create_card(device, intf, &card);
395380 	if (err < 0)
396381 		return err;
397
-	if ((err = usX2Y_hwdep_new(card, device)) < 0  ||
382
+	if ((err = usx2y_hwdep_new(card, device)) < 0  ||
398383 	    (err = snd_card_register(card)) < 0) {
399384 		snd_card_free(card);
400385 		return err;
....@@ -406,63 +391,64 @@
406391 /*
407392  * new 2.5 USB kernel API
408393  */
409
-static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
394
+static int snd_usx2y_probe(struct usb_interface *intf, const struct usb_device_id *id)
410395 {
411396 	struct snd_card *card;
412397 	int err;
413398 
414
-	err = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id, &card);
399
+	err = usx2y_usb_probe(interface_to_usbdev(intf), intf, id, &card);
415400 	if (err < 0)
416401 		return err;
417402 	dev_set_drvdata(&intf->dev, card);
418403 	return 0;
419404 }
420405 
421
-static void snd_usX2Y_disconnect(struct usb_interface *intf)
406
+static void snd_usx2y_disconnect(struct usb_interface *intf)
422407 {
423
-	usX2Y_usb_disconnect(interface_to_usbdev(intf),
408
+	usx2y_usb_disconnect(interface_to_usbdev(intf),
424409 				 usb_get_intfdata(intf));
425410 }
426411 
427
-MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);
428
-static struct usb_driver snd_usX2Y_usb_driver = {
412
+MODULE_DEVICE_TABLE(usb, snd_usx2y_usb_id_table);
413
+static struct usb_driver snd_usx2y_usb_driver = {
429414 	.name =		"snd-usb-usx2y",
430
-	.probe =	snd_usX2Y_probe,
431
-	.disconnect =	snd_usX2Y_disconnect,
432
-	.id_table =	snd_usX2Y_usb_id_table,
415
+	.probe =	snd_usx2y_probe,
416
+	.disconnect =	snd_usx2y_disconnect,
417
+	.id_table =	snd_usx2y_usb_id_table,
433418 };
434419 
435
-static void snd_usX2Y_card_private_free(struct snd_card *card)
420
+static void snd_usx2y_card_private_free(struct snd_card *card)
436421 {
437
-	kfree(usX2Y(card)->In04Buf);
438
-	usb_free_urb(usX2Y(card)->In04urb);
439
-	if (usX2Y(card)->us428ctls_sharedmem)
440
-		snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem));
441
-	if (usX2Y(card)->card_index >= 0  &&  usX2Y(card)->card_index < SNDRV_CARDS)
442
-		snd_usX2Y_card_used[usX2Y(card)->card_index] = 0;
422
+	kfree(usx2y(card)->in04_buf);
423
+	usb_free_urb(usx2y(card)->in04_urb);
424
+	if (usx2y(card)->us428ctls_sharedmem)
425
+		free_pages_exact(usx2y(card)->us428ctls_sharedmem,
426
+				 sizeof(*usx2y(card)->us428ctls_sharedmem));
427
+	if (usx2y(card)->card_index >= 0  &&  usx2y(card)->card_index < SNDRV_CARDS)
428
+		snd_usx2y_card_used[usx2y(card)->card_index] = 0;
443429 }
444430 
445431 /*
446432  * Frees the device.
447433  */
448
-static void usX2Y_usb_disconnect(struct usb_device *device, void* ptr)
434
+static void usx2y_usb_disconnect(struct usb_device *device, void* ptr)
449435 {
450436 	if (ptr) {
451437 		struct snd_card *card = ptr;
452
-		struct usX2Ydev *usX2Y = usX2Y(card);
438
+		struct usx2ydev *usx2y = usx2y(card);
453439 		struct list_head *p;
454
-		usX2Y->chip_status = USX2Y_STAT_CHIP_HUP;
455
-		usX2Y_unlinkSeq(&usX2Y->AS04);
456
-		usb_kill_urb(usX2Y->In04urb);
440
+		usx2y->chip_status = USX2Y_STAT_CHIP_HUP;
441
+		usx2y_unlinkseq(&usx2y->as04);
442
+		usb_kill_urb(usx2y->in04_urb);
457443 		snd_card_disconnect(card);
458444 		/* release the midi resources */
459
-		list_for_each(p, &usX2Y->midi_list) {
445
+		list_for_each(p, &usx2y->midi_list) {
460446 			snd_usbmidi_disconnect(p);
461447 		}
462
-		if (usX2Y->us428ctls_sharedmem) 
463
-			wake_up(&usX2Y->us428ctls_wait_queue_head);
448
+		if (usx2y->us428ctls_sharedmem) 
449
+			wake_up(&usx2y->us428ctls_wait_queue_head);
464450 		snd_card_free(card);
465451 	}
466452 }
467453 
468
-module_usb_driver(snd_usX2Y_usb_driver);
454
+module_usb_driver(snd_usx2y_usb_driver);