add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/drivers/media/pci/ivtv/ivtv-alsa-pcm.c
..
..
@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  *  ALSA PCM device for the
3
4
  *  ALSA interface to ivtv PCM capture streams
..
..
@@ -6,16 +7,6 @@
6
7
  *  Copyright (C) 2009  Devin Heitmueller <dheitmueller@kernellabs.com>
7
8
  *
8
9
  *  Portions of this work were sponsored by ONELAN Limited for the cx18 driver
9
- *
10
- *  This program is free software; you can redistribute it and/or modify
11
- *  it under the terms of the GNU General Public License as published by
12
- *  the Free Software Foundation; either version 2 of the License, or
13
- *  (at your option) any later version.
14
- *
15
- *  This program is distributed in the hope that it will be useful,
16
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
- *  GNU General Public License for more details.
19
10
  */
20
11
 
21
12
 #include "ivtv-driver.h"
..
..
@@ -24,8 +15,6 @@
24
15
 #include "ivtv-fileops.h"
25
16
 #include "ivtv-alsa.h"
26
17
 #include "ivtv-alsa-pcm.h"
27
-
28
-#include <linux/vmalloc.h>
29
18
 
30
19
 #include <sound/core.h>
31
20
 #include <sound/pcm.h>
..
..
@@ -215,67 +204,6 @@
215
204
 	return 0;
216
205
 }
217
206
 
218
-static int snd_ivtv_pcm_ioctl(struct snd_pcm_substream *substream,
219
-		     unsigned int cmd, void *arg)
220
-{
221
-	struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
222
-	int ret;
223
-
224
-	snd_ivtv_lock(itvsc);
225
-	ret = snd_pcm_lib_ioctl(substream, cmd, arg);
226
-	snd_ivtv_unlock(itvsc);
227
-	return ret;
228
-}
229
-
230
-
231
-static int snd_pcm_alloc_vmalloc_buffer(struct snd_pcm_substream *subs,
232
-					size_t size)
233
-{
234
-	struct snd_pcm_runtime *runtime = subs->runtime;
235
-
236
-	dprintk("Allocating vbuffer\n");
237
-	if (runtime->dma_area) {
238
-		if (runtime->dma_bytes > size)
239
-			return 0;
240
-
241
-		vfree(runtime->dma_area);
242
-	}
243
-	runtime->dma_area = vmalloc(size);
244
-	if (!runtime->dma_area)
245
-		return -ENOMEM;
246
-
247
-	runtime->dma_bytes = size;
248
-
249
-	return 0;
250
-}
251
-
252
-static int snd_ivtv_pcm_hw_params(struct snd_pcm_substream *substream,
253
-			 struct snd_pcm_hw_params *params)
254
-{
255
-	dprintk("%s called\n", __func__);
256
-
257
-	return snd_pcm_alloc_vmalloc_buffer(substream,
258
-					   params_buffer_bytes(params));
259
-}
260
-
261
-static int snd_ivtv_pcm_hw_free(struct snd_pcm_substream *substream)
262
-{
263
-	struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
264
-	unsigned long flags;
265
-	unsigned char *dma_area = NULL;
266
-
267
-	spin_lock_irqsave(&itvsc->slock, flags);
268
-	if (substream->runtime->dma_area) {
269
-		dprintk("freeing pcm capture region\n");
270
-		dma_area = substream->runtime->dma_area;
271
-		substream->runtime->dma_area = NULL;
272
-	}
273
-	spin_unlock_irqrestore(&itvsc->slock, flags);
274
-	vfree(dma_area);
275
-
276
-	return 0;
277
-}
278
-
279
207
 static int snd_ivtv_pcm_prepare(struct snd_pcm_substream *substream)
280
208
 {
281
209
 	struct snd_ivtv_card *itvsc = snd_pcm_substream_chip(substream);
..
..
@@ -305,24 +233,12 @@
305
233
 	return hwptr_done;
306
234
 }
307
235
 
308
-static struct page *snd_pcm_get_vmalloc_page(struct snd_pcm_substream *subs,
309
-					     unsigned long offset)
310
-{
311
-	void *pageptr = subs->runtime->dma_area + offset;
312
-
313
-	return vmalloc_to_page(pageptr);
314
-}
315
-
316
236
 static const struct snd_pcm_ops snd_ivtv_pcm_capture_ops = {
317
237
 	.open		= snd_ivtv_pcm_capture_open,
318
238
 	.close		= snd_ivtv_pcm_capture_close,
319
-	.ioctl		= snd_ivtv_pcm_ioctl,
320
-	.hw_params	= snd_ivtv_pcm_hw_params,
321
-	.hw_free	= snd_ivtv_pcm_hw_free,
322
239
 	.prepare	= snd_ivtv_pcm_prepare,
323
240
 	.trigger	= snd_ivtv_pcm_trigger,
324
241
 	.pointer	= snd_ivtv_pcm_pointer,
325
-	.page		= snd_pcm_get_vmalloc_page,
326
242
 };
327
243
 
328
244
 int snd_ivtv_pcm_create(struct snd_ivtv_card *itvsc)
..
..
@@ -348,9 +264,10 @@
348
264
 
349
265
 	snd_pcm_set_ops(sp, SNDRV_PCM_STREAM_CAPTURE,
350
266
 			&snd_ivtv_pcm_capture_ops);
267
+	snd_pcm_set_managed_buffer_all(sp, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
351
268
 	sp->info_flags = 0;
352
269
 	sp->private_data = itvsc;
353
-	strlcpy(sp->name, itv->card_name, sizeof(sp->name));
270
+	strscpy(sp->name, itv->card_name, sizeof(sp->name));
354
271
 
355
272
 	return 0;
356
273