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2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/sound/soc/intel/atom/sst-mfld-platform-pcm.c
....@@ -1,3 +1,4 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  *  sst_mfld_platform.c - Intel MID Platform driver
34  *
....@@ -5,15 +6,6 @@
56  *  Author: Vinod Koul <vinod.koul@intel.com>
67  *  Author: Harsha Priya <priya.harsha@intel.com>
78  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
8
- *
9
- *  This program is free software; you can redistribute it and/or modify
10
- *  it under the terms of the GNU General Public License as published by
11
- *  the Free Software Foundation; version 2 of the License.
12
- *
13
- *  This program is distributed in the hope that it will be useful, but
14
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
15
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16
- *  General Public License for more details.
179  *
1810  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1911  */
....@@ -190,7 +182,7 @@
190182 	map = ctx->pdata->pdev_strm_map;
191183 	map_size = ctx->pdata->strm_map_size;
192184 
193
-	if (is_compress == true)
185
+	if (is_compress)
194186 		cstream = (struct snd_compr_stream *)substream;
195187 	else
196188 		pstream = (struct snd_pcm_substream *)substream;
....@@ -281,7 +273,7 @@
281273 {
282274 	struct sst_runtime_stream *stream =
283275 			substream->runtime->private_data;
284
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
276
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
285277 	int ret_val;
286278 
287279 	dev_dbg(rtd->dev, "setting buffer ptr param\n");
....@@ -340,6 +332,17 @@
340332 	if (ret_val < 0)
341333 		goto out_power_up;
342334 
335
+	/*
336
+	 * Make sure the period to be multiple of 1ms to align the
337
+	 * design of firmware. Apply same rule to buffer size to make
338
+	 * sure alsa could always find a value for period size
339
+	 * regardless the buffer size given by user space.
340
+	 */
341
+	snd_pcm_hw_constraint_step(substream->runtime, 0,
342
+			   SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 48);
343
+	snd_pcm_hw_constraint_step(substream->runtime, 0,
344
+			   SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 48);
345
+
343346 	/* Make sure, that the period size is always even */
344347 	snd_pcm_hw_constraint_step(substream->runtime, 0,
345348 			   SNDRV_PCM_HW_PARAM_PERIODS, 2);
....@@ -373,7 +376,7 @@
373376 		struct snd_soc_dai *dai)
374377 {
375378 	struct sst_runtime_stream *stream;
376
-	int ret_val = 0, str_id;
379
+	int ret_val, str_id;
377380 
378381 	stream = substream->runtime->private_data;
379382 	str_id = stream->stream_info.str_id;
....@@ -392,28 +395,7 @@
392395 	if (ret_val)
393396 		return ret_val;
394397 	substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
395
-	return ret_val;
396
-}
397
-
398
-static int sst_media_hw_params(struct snd_pcm_substream *substream,
399
-				struct snd_pcm_hw_params *params,
400
-				struct snd_soc_dai *dai)
401
-{
402
-	int ret;
403
-
404
-	ret =
405
-		snd_pcm_lib_malloc_pages(substream,
406
-				params_buffer_bytes(params));
407
-	if (ret)
408
-		return ret;
409
-	memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
410398 	return 0;
411
-}
412
-
413
-static int sst_media_hw_free(struct snd_pcm_substream *substream,
414
-		struct snd_soc_dai *dai)
415
-{
416
-	return snd_pcm_lib_free_pages(substream);
417399 }
418400 
419401 static int sst_enable_ssp(struct snd_pcm_substream *substream,
....@@ -421,7 +403,7 @@
421403 {
422404 	int ret = 0;
423405 
424
-	if (!dai->active) {
406
+	if (!snd_soc_dai_active(dai)) {
425407 		ret = sst_handle_vb_timer(dai, true);
426408 		sst_fill_ssp_defaults(dai);
427409 	}
....@@ -434,7 +416,7 @@
434416 {
435417 	int ret = 0;
436418 
437
-	if (dai->active == 1)
419
+	if (snd_soc_dai_active(dai) == 1)
438420 		ret = send_ssp_cmd(dai, dai->name, 1);
439421 	return ret;
440422 }
....@@ -443,7 +425,7 @@
443425 {
444426 	int ret = 0;
445427 
446
-	if (!dai->active)
428
+	if (!snd_soc_dai_active(dai))
447429 		return 0;
448430 
449431 	ret = sst_fill_ssp_config(dai, fmt);
....@@ -458,7 +440,7 @@
458440 			int slots, int slot_width) {
459441 	int ret = 0;
460442 
461
-	if (!dai->active)
443
+	if (!snd_soc_dai_active(dai))
462444 		return ret;
463445 
464446 	ret = sst_fill_ssp_slot(dai, tx_mask, rx_mask, slots, slot_width);
....@@ -471,7 +453,7 @@
471453 static void sst_disable_ssp(struct snd_pcm_substream *substream,
472454 			struct snd_soc_dai *dai)
473455 {
474
-	if (!dai->active) {
456
+	if (!snd_soc_dai_active(dai)) {
475457 		send_ssp_cmd(dai, dai->name, 0);
476458 		sst_handle_vb_timer(dai, false);
477459 	}
....@@ -481,8 +463,6 @@
481463 	.startup = sst_media_open,
482464 	.shutdown = sst_media_close,
483465 	.prepare = sst_media_prepare,
484
-	.hw_params = sst_media_hw_params,
485
-	.hw_free = sst_media_hw_free,
486466 	.mute_stream = sst_media_digital_mute,
487467 };
488468 
....@@ -594,7 +574,8 @@
594574 },
595575 };
596576 
597
-static int sst_platform_open(struct snd_pcm_substream *substream)
577
+static int sst_soc_open(struct snd_soc_component *component,
578
+			struct snd_pcm_substream *substream)
598579 {
599580 	struct snd_pcm_runtime *runtime;
600581 
....@@ -606,15 +587,15 @@
606587 	return 0;
607588 }
608589 
609
-static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream,
610
-					int cmd)
590
+static int sst_soc_trigger(struct snd_soc_component *component,
591
+			   struct snd_pcm_substream *substream, int cmd)
611592 {
612593 	int ret_val = 0, str_id;
613594 	struct sst_runtime_stream *stream;
614595 	int status;
615
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
596
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
616597 
617
-	dev_dbg(rtd->dev, "sst_platform_pcm_trigger called\n");
598
+	dev_dbg(rtd->dev, "%s called\n", __func__);
618599 	if (substream->pcm->internal)
619600 		return 0;
620601 	stream = substream->runtime->private_data;
....@@ -654,13 +635,13 @@
654635 }
655636 
656637 
657
-static snd_pcm_uframes_t sst_platform_pcm_pointer
658
-			(struct snd_pcm_substream *substream)
638
+static snd_pcm_uframes_t sst_soc_pointer(struct snd_soc_component *component,
639
+					 struct snd_pcm_substream *substream)
659640 {
660641 	struct sst_runtime_stream *stream;
661642 	int ret_val, status;
662643 	struct pcm_stream_info *str_info;
663
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
644
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
664645 
665646 	stream = substream->runtime->private_data;
666647 	status = sst_get_stream_status(stream);
....@@ -676,31 +657,20 @@
676657 	return str_info->buffer_ptr;
677658 }
678659 
679
-static const struct snd_pcm_ops sst_platform_ops = {
680
-	.open = sst_platform_open,
681
-	.ioctl = snd_pcm_lib_ioctl,
682
-	.trigger = sst_platform_pcm_trigger,
683
-	.pointer = sst_platform_pcm_pointer,
684
-};
685
-
686
-static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd)
660
+static int sst_soc_pcm_new(struct snd_soc_component *component,
661
+			   struct snd_soc_pcm_runtime *rtd)
687662 {
688
-	struct snd_soc_dai *dai = rtd->cpu_dai;
663
+	struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
689664 	struct snd_pcm *pcm = rtd->pcm;
690
-	int retval = 0;
691665 
692666 	if (dai->driver->playback.channels_min ||
693667 			dai->driver->capture.channels_min) {
694
-		retval =  snd_pcm_lib_preallocate_pages_for_all(pcm,
668
+		snd_pcm_set_managed_buffer_all(pcm,
695669 			SNDRV_DMA_TYPE_CONTINUOUS,
696670 			snd_dma_continuous_data(GFP_DMA),
697671 			SST_MIN_BUFFER, SST_MAX_BUFFER);
698
-		if (retval) {
699
-			dev_err(rtd->dev, "dma buffer allocation failure\n");
700
-			return retval;
701
-		}
702672 	}
703
-	return retval;
673
+	return 0;
704674 }
705675 
706676 static int sst_soc_probe(struct snd_soc_component *component)
....@@ -722,9 +692,11 @@
722692 	.name		= DRV_NAME,
723693 	.probe		= sst_soc_probe,
724694 	.remove		= sst_soc_remove,
725
-	.ops		= &sst_platform_ops,
726
-	.compr_ops	= &sst_platform_compr_ops,
727
-	.pcm_new	= sst_pcm_new,
695
+	.open		= sst_soc_open,
696
+	.trigger	= sst_soc_trigger,
697
+	.pointer	= sst_soc_pointer,
698
+	.compress_ops	= &sst_platform_compress_ops,
699
+	.pcm_construct	= sst_soc_pcm_new,
728700 };
729701 
730702 static int sst_platform_probe(struct platform_device *pdev)
....@@ -779,10 +751,10 @@
779751 	snd_soc_poweroff(drv->soc_card->dev);
780752 
781753 	/* set the SSPs to idle */
782
-	list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) {
783
-		struct snd_soc_dai *dai = rtd->cpu_dai;
754
+	for_each_card_rtds(drv->soc_card, rtd) {
755
+		struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
784756 
785
-		if (dai->active) {
757
+		if (snd_soc_dai_active(dai)) {
786758 			send_ssp_cmd(dai, dai->name, 0);
787759 			sst_handle_vb_timer(dai, false);
788760 		}
....@@ -800,10 +772,10 @@
800772 		return;
801773 
802774 	/* restart SSPs */
803
-	list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) {
804
-		struct snd_soc_dai *dai = rtd->cpu_dai;
775
+	for_each_card_rtds(drv->soc_card, rtd) {
776
+		struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
805777 
806
-		if (dai->active) {
778
+		if (snd_soc_dai_active(dai)) {
807779 			sst_handle_vb_timer(dai, true);
808780 			send_ssp_cmd(dai, dai->name, 1);
809781 		}