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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc 
 kernel/sound/mips/hal2.c
....@@ -1,23 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  *  Driver for A2 audio system used in SGI machines
34  *  Copyright (c) 2008 Thomas Bogendoerfer <tsbogend@alpha.fanken.de>
45  *
56  *  Based on OSS code from Ladislav Michl <ladis@linux-mips.org>, which
67  *  was based on code from Ulf Carlsson
7
- *
8
- *  This program is free software; you can redistribute it and/or modify
9
- *  it under the terms of the GNU General Public License version 2 as
10
- *  published by the Free Software Foundation.
11
- *
12
- *  This program is distributed in the hope that it will be useful,
13
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
- *  GNU General Public License for more details.
16
- *
17
- *  You should have received a copy of the GNU General Public License
18
- *  along with this program; if not, write to the Free Software
19
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
- *
218  */
229 #include <linux/kernel.h>
2310 #include <linux/init.h>
....@@ -454,22 +441,24 @@
454441 	hal2->adc.pbus.pbus->pbdma_ctrl = HPC3_PDMACTRL_LD;
455442 }
456443 
457
-static int hal2_alloc_dmabuf(struct hal2_codec *codec)
444
+static int hal2_alloc_dmabuf(struct snd_hal2 *hal2, struct hal2_codec *codec,
445
+		enum dma_data_direction buffer_dir)
458446 {
447
+	struct device *dev = hal2->card->dev;
459448 	struct hal2_desc *desc;
460449 	dma_addr_t desc_dma, buffer_dma;
461450 	int count = H2_BUF_SIZE / H2_BLOCK_SIZE;
462451 	int i;
463452 
464
-	codec->buffer = dma_alloc_attrs(NULL, H2_BUF_SIZE, &buffer_dma,
465
-					GFP_KERNEL, DMA_ATTR_NON_CONSISTENT);
453
+	codec->buffer = dma_alloc_noncoherent(dev, H2_BUF_SIZE, &buffer_dma,
454
+					buffer_dir, GFP_KERNEL);
466455 	if (!codec->buffer)
467456 		return -ENOMEM;
468
-	desc = dma_alloc_attrs(NULL, count * sizeof(struct hal2_desc),
469
-			       &desc_dma, GFP_KERNEL, DMA_ATTR_NON_CONSISTENT);
457
+	desc = dma_alloc_noncoherent(dev, count * sizeof(struct hal2_desc),
458
+			&desc_dma, DMA_BIDIRECTIONAL, GFP_KERNEL);
470459 	if (!desc) {
471
-		dma_free_attrs(NULL, H2_BUF_SIZE, codec->buffer, buffer_dma,
472
-			       DMA_ATTR_NON_CONSISTENT);
460
+		dma_free_noncoherent(dev, H2_BUF_SIZE, codec->buffer, buffer_dma,
461
+				buffer_dir);
473462 		return -ENOMEM;
474463 	}
475464 	codec->buffer_dma = buffer_dma;
....@@ -482,25 +471,30 @@
482471 		      desc_dma : desc_dma + (i + 1) * sizeof(struct hal2_desc);
483472 		desc++;
484473 	}
485
-	dma_cache_sync(NULL, codec->desc, count * sizeof(struct hal2_desc),
486
-		       DMA_TO_DEVICE);
474
+	dma_sync_single_for_device(dev, codec->desc_dma,
475
+				   count * sizeof(struct hal2_desc),
476
+				   DMA_BIDIRECTIONAL);
487477 	codec->desc_count = count;
488478 	return 0;
489479 }
490480 
491
-static void hal2_free_dmabuf(struct hal2_codec *codec)
481
+static void hal2_free_dmabuf(struct snd_hal2 *hal2, struct hal2_codec *codec,
482
+		enum dma_data_direction buffer_dir)
492483 {
493
-	dma_free_attrs(NULL, codec->desc_count * sizeof(struct hal2_desc),
494
-		       codec->desc, codec->desc_dma, DMA_ATTR_NON_CONSISTENT);
495
-	dma_free_attrs(NULL, H2_BUF_SIZE, codec->buffer, codec->buffer_dma,
496
-		       DMA_ATTR_NON_CONSISTENT);
484
+	struct device *dev = hal2->card->dev;
485
+
486
+	dma_free_noncoherent(dev, codec->desc_count * sizeof(struct hal2_desc),
487
+		       codec->desc, codec->desc_dma, DMA_BIDIRECTIONAL);
488
+	dma_free_noncoherent(dev, H2_BUF_SIZE, codec->buffer, codec->buffer_dma,
489
+			buffer_dir);
497490 }
498491 
499492 static const struct snd_pcm_hardware hal2_pcm_hw = {
500493 	.info = (SNDRV_PCM_INFO_MMAP |
501494 		 SNDRV_PCM_INFO_MMAP_VALID |
502495 		 SNDRV_PCM_INFO_INTERLEAVED |
503
-		 SNDRV_PCM_INFO_BLOCK_TRANSFER),
496
+		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
497
+		 SNDRV_PCM_INFO_SYNC_APPLPTR),
504498 	.formats =          SNDRV_PCM_FMTBIT_S16_BE,
505499 	.rates =            SNDRV_PCM_RATE_8000_48000,
506500 	.rate_min =         8000,
....@@ -514,42 +508,20 @@
514508 	.periods_max =      1024,
515509 };
516510 
517
-static int hal2_pcm_hw_params(struct snd_pcm_substream *substream,
518
-			      struct snd_pcm_hw_params *params)
519
-{
520
-	int err;
521
-
522
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
523
-	if (err < 0)
524
-		return err;
525
-
526
-	return 0;
527
-}
528
-
529
-static int hal2_pcm_hw_free(struct snd_pcm_substream *substream)
530
-{
531
-	return snd_pcm_lib_free_pages(substream);
532
-}
533
-
534511 static int hal2_playback_open(struct snd_pcm_substream *substream)
535512 {
536513 	struct snd_pcm_runtime *runtime = substream->runtime;
537514 	struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
538
-	int err;
539515 
540516 	runtime->hw = hal2_pcm_hw;
541
-
542
-	err = hal2_alloc_dmabuf(&hal2->dac);
543
-	if (err)
544
-		return err;
545
-	return 0;
517
+	return hal2_alloc_dmabuf(hal2, &hal2->dac, DMA_TO_DEVICE);
546518 }
547519 
548520 static int hal2_playback_close(struct snd_pcm_substream *substream)
549521 {
550522 	struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
551523 
552
-	hal2_free_dmabuf(&hal2->dac);
524
+	hal2_free_dmabuf(hal2, &hal2->dac, DMA_TO_DEVICE);
553525 	return 0;
554526 }
555527 
....@@ -563,6 +535,8 @@
563535 	dac->sample_rate = hal2_compute_rate(dac, runtime->rate);
564536 	memset(&dac->pcm_indirect, 0, sizeof(dac->pcm_indirect));
565537 	dac->pcm_indirect.hw_buffer_size = H2_BUF_SIZE;
538
+	dac->pcm_indirect.hw_queue_size = H2_BUF_SIZE / 2;
539
+	dac->pcm_indirect.hw_io = dac->buffer_dma;
566540 	dac->pcm_indirect.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
567541 	dac->substream = substream;
568542 	hal2_setup_dac(hal2);
....@@ -575,9 +549,6 @@
575549 
576550 	switch (cmd) {
577551 	case SNDRV_PCM_TRIGGER_START:
578
-		hal2->dac.pcm_indirect.hw_io = hal2->dac.buffer_dma;
579
-		hal2->dac.pcm_indirect.hw_data = 0;
580
-		substream->ops->ack(substream);
581552 		hal2_start_dac(hal2);
582553 		break;
583554 	case SNDRV_PCM_TRIGGER_STOP:
....@@ -606,7 +577,9 @@
606577 	unsigned char *buf = hal2->dac.buffer + rec->hw_data;
607578 
608579 	memcpy(buf, substream->runtime->dma_area + rec->sw_data, bytes);
609
-	dma_cache_sync(NULL, buf, bytes, DMA_TO_DEVICE);
580
+	dma_sync_single_for_device(hal2->card->dev,
581
+			hal2->dac.buffer_dma + rec->hw_data, bytes,
582
+			DMA_TO_DEVICE);
610583 
611584 }
612585 
....@@ -615,7 +588,6 @@
615588 	struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
616589 	struct hal2_codec *dac = &hal2->dac;
617590 
618
-	dac->pcm_indirect.hw_queue_size = H2_BUF_SIZE / 2;
619591 	return snd_pcm_indirect_playback_transfer(substream,
620592 						  &dac->pcm_indirect,
621593 						  hal2_playback_transfer);
....@@ -625,22 +597,16 @@
625597 {
626598 	struct snd_pcm_runtime *runtime = substream->runtime;
627599 	struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
628
-	struct hal2_codec *adc = &hal2->adc;
629
-	int err;
630600 
631601 	runtime->hw = hal2_pcm_hw;
632
-
633
-	err = hal2_alloc_dmabuf(adc);
634
-	if (err)
635
-		return err;
636
-	return 0;
602
+	return hal2_alloc_dmabuf(hal2, &hal2->adc, DMA_FROM_DEVICE);
637603 }
638604 
639605 static int hal2_capture_close(struct snd_pcm_substream *substream)
640606 {
641607 	struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
642608 
643
-	hal2_free_dmabuf(&hal2->adc);
609
+	hal2_free_dmabuf(hal2, &hal2->adc, DMA_FROM_DEVICE);
644610 	return 0;
645611 }
646612 
....@@ -655,6 +621,7 @@
655621 	memset(&adc->pcm_indirect, 0, sizeof(adc->pcm_indirect));
656622 	adc->pcm_indirect.hw_buffer_size = H2_BUF_SIZE;
657623 	adc->pcm_indirect.hw_queue_size = H2_BUF_SIZE / 2;
624
+	adc->pcm_indirect.hw_io = adc->buffer_dma;
658625 	adc->pcm_indirect.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
659626 	adc->substream = substream;
660627 	hal2_setup_adc(hal2);
....@@ -667,9 +634,6 @@
667634 
668635 	switch (cmd) {
669636 	case SNDRV_PCM_TRIGGER_START:
670
-		hal2->adc.pcm_indirect.hw_io = hal2->adc.buffer_dma;
671
-		hal2->adc.pcm_indirect.hw_data = 0;
672
-		printk(KERN_DEBUG "buffer_dma %x\n", hal2->adc.buffer_dma);
673637 		hal2_start_adc(hal2);
674638 		break;
675639 	case SNDRV_PCM_TRIGGER_STOP:
....@@ -697,7 +661,9 @@
697661 	struct snd_hal2 *hal2 = snd_pcm_substream_chip(substream);
698662 	unsigned char *buf = hal2->adc.buffer + rec->hw_data;
699663 
700
-	dma_cache_sync(NULL, buf, bytes, DMA_FROM_DEVICE);
664
+	dma_sync_single_for_cpu(hal2->card->dev,
665
+			hal2->adc.buffer_dma + rec->hw_data, bytes,
666
+			DMA_FROM_DEVICE);
701667 	memcpy(substream->runtime->dma_area + rec->sw_data, buf, bytes);
702668 }
703669 
....@@ -714,9 +680,6 @@
714680 static const struct snd_pcm_ops hal2_playback_ops = {
715681 	.open =        hal2_playback_open,
716682 	.close =       hal2_playback_close,
717
-	.ioctl =       snd_pcm_lib_ioctl,
718
-	.hw_params =   hal2_pcm_hw_params,
719
-	.hw_free =     hal2_pcm_hw_free,
720683 	.prepare =     hal2_playback_prepare,
721684 	.trigger =     hal2_playback_trigger,
722685 	.pointer =     hal2_playback_pointer,
....@@ -726,9 +689,6 @@
726689 static const struct snd_pcm_ops hal2_capture_ops = {
727690 	.open =        hal2_capture_open,
728691 	.close =       hal2_capture_close,
729
-	.ioctl =       snd_pcm_lib_ioctl,
730
-	.hw_params =   hal2_pcm_hw_params,
731
-	.hw_free =     hal2_pcm_hw_free,
732692 	.prepare =     hal2_capture_prepare,
733693 	.trigger =     hal2_capture_trigger,
734694 	.pointer =     hal2_capture_pointer,
....@@ -753,9 +713,8 @@
753713 			&hal2_playback_ops);
754714 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
755715 			&hal2_capture_ops);
756
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
757
-					   snd_dma_continuous_data(GFP_KERNEL),
758
-					   0, 1024 * 1024);
716
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
717
+				       NULL, 0, 1024 * 1024);
759718 
760719 	return 0;
761720 }
....@@ -769,7 +728,7 @@
769728 	return 0;
770729 }
771730 
772
-static struct snd_device_ops hal2_ops = {
731
+static const struct snd_device_ops hal2_ops = {
773732 	.dev_free = hal2_dev_free,
774733 };
775734