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hc
2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c 
 kernel/sound/soc/au1x/dbdma2.c
....@@ -1,15 +1,11 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Au12x0/Au1550 PSC ALSA ASoC audio support.
34  *
45  * (c) 2007-2008 MSC Vertriebsges.m.b.H.,
56  *	Manuel Lauss <manuel.lauss@gmail.com>
67  *
7
- * This program is free software; you can redistribute it and/or modify
8
- * it under the terms of the GNU General Public License version 2 as
9
- * published by the Free Software Foundation.
10
- *
118  * DMA glue for Au1x-PSC audio.
12
- *
139  */
1410 
1511 
....@@ -186,27 +182,23 @@
186182 	return 0;
187183 }
188184 
189
-static inline struct au1xpsc_audio_dmadata *to_dmadata(struct snd_pcm_substream *ss)
185
+static inline struct au1xpsc_audio_dmadata *to_dmadata(struct snd_pcm_substream *ss,
186
+						       struct snd_soc_component *component)
190187 {
191
-	struct snd_soc_pcm_runtime *rtd = ss->private_data;
192
-	struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
193188 	struct au1xpsc_audio_dmadata *pcd = snd_soc_component_get_drvdata(component);
194189 	return &pcd[ss->stream];
195190 }
196191 
197
-static int au1xpsc_pcm_hw_params(struct snd_pcm_substream *substream,
192
+static int au1xpsc_pcm_hw_params(struct snd_soc_component *component,
193
+				 struct snd_pcm_substream *substream,
198194 				 struct snd_pcm_hw_params *params)
199195 {
200196 	struct snd_pcm_runtime *runtime = substream->runtime;
201197 	struct au1xpsc_audio_dmadata *pcd;
202198 	int stype, ret;
203199 
204
-	ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
205
-	if (ret < 0)
206
-		goto out;
207
-
208200 	stype = substream->stream;
209
-	pcd = to_dmadata(substream);
201
+	pcd = to_dmadata(substream, component);
210202 
211203 	DBG("runtime->dma_area = 0x%08lx dma_addr_t = 0x%08lx dma_size = %zu "
212204 	    "runtime->min_align %lu\n",
....@@ -236,15 +228,10 @@
236228 	return ret;
237229 }
238230 
239
-static int au1xpsc_pcm_hw_free(struct snd_pcm_substream *substream)
231
+static int au1xpsc_pcm_prepare(struct snd_soc_component *component,
232
+			       struct snd_pcm_substream *substream)
240233 {
241
-	snd_pcm_lib_free_pages(substream);
242
-	return 0;
243
-}
244
-
245
-static int au1xpsc_pcm_prepare(struct snd_pcm_substream *substream)
246
-{
247
-	struct au1xpsc_audio_dmadata *pcd = to_dmadata(substream);
234
+	struct au1xpsc_audio_dmadata *pcd = to_dmadata(substream, component);
248235 
249236 	au1xxx_dbdma_reset(pcd->ddma_chan);
250237 
....@@ -259,9 +246,10 @@
259246 	return 0;
260247 }
261248 
262
-static int au1xpsc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
249
+static int au1xpsc_pcm_trigger(struct snd_soc_component *component,
250
+			       struct snd_pcm_substream *substream, int cmd)
263251 {
264
-	u32 c = to_dmadata(substream)->ddma_chan;
252
+	u32 c = to_dmadata(substream, component)->ddma_chan;
265253 
266254 	switch (cmd) {
267255 	case SNDRV_PCM_TRIGGER_START:
....@@ -279,18 +267,21 @@
279267 }
280268 
281269 static snd_pcm_uframes_t
282
-au1xpsc_pcm_pointer(struct snd_pcm_substream *substream)
270
+au1xpsc_pcm_pointer(struct snd_soc_component *component,
271
+		    struct snd_pcm_substream *substream)
283272 {
284
-	return bytes_to_frames(substream->runtime, to_dmadata(substream)->pos);
273
+	return bytes_to_frames(substream->runtime,
274
+			       to_dmadata(substream, component)->pos);
285275 }
286276 
287
-static int au1xpsc_pcm_open(struct snd_pcm_substream *substream)
277
+static int au1xpsc_pcm_open(struct snd_soc_component *component,
278
+			    struct snd_pcm_substream *substream)
288279 {
289
-	struct au1xpsc_audio_dmadata *pcd = to_dmadata(substream);
290
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
280
+	struct au1xpsc_audio_dmadata *pcd = to_dmadata(substream, component);
281
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
291282 	int stype = substream->stream, *dmaids;
292283 
293
-	dmaids = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
284
+	dmaids = snd_soc_dai_get_dma_data(asoc_rtd_to_cpu(rtd, 0), substream);
294285 	if (!dmaids)
295286 		return -ENODEV;	/* whoa, has ordering changed? */
296287 
....@@ -300,29 +291,20 @@
300291 	return 0;
301292 }
302293 
303
-static int au1xpsc_pcm_close(struct snd_pcm_substream *substream)
294
+static int au1xpsc_pcm_close(struct snd_soc_component *component,
295
+			     struct snd_pcm_substream *substream)
304296 {
305
-	au1x_pcm_dbdma_free(to_dmadata(substream));
297
+	au1x_pcm_dbdma_free(to_dmadata(substream, component));
306298 	return 0;
307299 }
308300 
309
-static const struct snd_pcm_ops au1xpsc_pcm_ops = {
310
-	.open		= au1xpsc_pcm_open,
311
-	.close		= au1xpsc_pcm_close,
312
-	.ioctl		= snd_pcm_lib_ioctl,
313
-	.hw_params	= au1xpsc_pcm_hw_params,
314
-	.hw_free	= au1xpsc_pcm_hw_free,
315
-	.prepare	= au1xpsc_pcm_prepare,
316
-	.trigger	= au1xpsc_pcm_trigger,
317
-	.pointer	= au1xpsc_pcm_pointer,
318
-};
319
-
320
-static int au1xpsc_pcm_new(struct snd_soc_pcm_runtime *rtd)
301
+static int au1xpsc_pcm_new(struct snd_soc_component *component,
302
+			   struct snd_soc_pcm_runtime *rtd)
321303 {
322304 	struct snd_card *card = rtd->card->snd_card;
323305 	struct snd_pcm *pcm = rtd->pcm;
324306 
325
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
307
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
326308 		card->dev, AU1XPSC_BUFFER_MIN_BYTES, (4096 * 1024) - 1);
327309 
328310 	return 0;
....@@ -331,8 +313,13 @@
331313 /* au1xpsc audio platform */
332314 static struct snd_soc_component_driver au1xpsc_soc_component = {
333315 	.name		= DRV_NAME,
334
-	.ops		= &au1xpsc_pcm_ops,
335
-	.pcm_new	= au1xpsc_pcm_new,
316
+	.open		= au1xpsc_pcm_open,
317
+	.close		= au1xpsc_pcm_close,
318
+	.hw_params	= au1xpsc_pcm_hw_params,
319
+	.prepare	= au1xpsc_pcm_prepare,
320
+	.trigger	= au1xpsc_pcm_trigger,
321
+	.pointer	= au1xpsc_pcm_pointer,
322
+	.pcm_construct	= au1xpsc_pcm_new,
336323 };
337324 
338325 static int au1xpsc_pcm_drvprobe(struct platform_device *pdev)