1 files changed, 31 insertions, 127 deletions

diff --git a/sound/soc/sof/compress.c b/sound/soc/sof/compress.c
index 57d5bf0a171e..01ca85f0b87f 100644
--- a/sound/soc/sof/compress.c
+++ b/sound/soc/sof/compress.c
@@ -1,147 +1,51 @@
 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
 //
-// This file is provided under a dual BSD/GPLv2 license.  When using or
-// redistributing this file, you may do so under either license.
-//
-// Copyright(c) 2019-2020 Intel Corporation. All rights reserved.
-//
-// Author: Cezary Rojewski <cezary.rojewski@intel.com>
+// Copyright 2021 NXP
 //
+// Author: Daniel Baluta <daniel.baluta@nxp.com>
 
 #include <sound/soc.h>
-#include "compress.h"
-#include "ops.h"
-#include "probe.h"
-
-const struct snd_compress_ops sof_probe_compressed_ops = {
-	.copy		= sof_probe_compr_copy,
-};
-EXPORT_SYMBOL(sof_probe_compressed_ops);
-
-int sof_probe_compr_open(struct snd_compr_stream *cstream,
-		struct snd_soc_dai *dai)
-{
-	struct snd_sof_dev *sdev =
-				snd_soc_component_get_drvdata(dai->component);
-	int ret;
-
-	ret = snd_sof_probe_compr_assign(sdev, cstream, dai);
-	if (ret < 0) {
-		dev_err(dai->dev, "Failed to assign probe stream: %d\n", ret);
-		return ret;
-	}
+#include <sound/sof.h>
+#include <sound/compress_driver.h>
+#include "sof-audio.h"
+#include "sof-priv.h"
 
-	sdev->extractor_stream_tag = ret;
-	return 0;
-}
-EXPORT_SYMBOL(sof_probe_compr_open);
-
-int sof_probe_compr_free(struct snd_compr_stream *cstream,
-		struct snd_soc_dai *dai)
+static void snd_sof_compr_fragment_elapsed_work(struct work_struct *work)
 {
-	struct snd_sof_dev *sdev =
-				snd_soc_component_get_drvdata(dai->component);
-	struct sof_probe_point_desc *desc;
-	size_t num_desc;
-	int i, ret;
-
-	/* disconnect all probe points */
-	ret = sof_ipc_probe_points_info(sdev, &desc, &num_desc);
-	if (ret < 0) {
-		dev_err(dai->dev, "Failed to get probe points: %d\n", ret);
-		goto exit;
-	}
-
-	for (i = 0; i < num_desc; i++)
-		sof_ipc_probe_points_remove(sdev, &desc[i].buffer_id, 1);
-	kfree(desc);
-
-exit:
-	ret = sof_ipc_probe_deinit(sdev);
-	if (ret < 0)
-		dev_err(dai->dev, "Failed to deinit probe: %d\n", ret);
-
-	sdev->extractor_stream_tag = SOF_PROBE_INVALID_NODE_ID;
-	snd_compr_free_pages(cstream);
+	struct snd_sof_pcm_stream *sps =
+		container_of(work, struct snd_sof_pcm_stream,
+			     period_elapsed_work);
 
-	return snd_sof_probe_compr_free(sdev, cstream, dai);
+	snd_compr_fragment_elapsed(sps->cstream);
 }
-EXPORT_SYMBOL(sof_probe_compr_free);
 
-int sof_probe_compr_set_params(struct snd_compr_stream *cstream,
-		struct snd_compr_params *params, struct snd_soc_dai *dai)
+void snd_sof_compr_init_elapsed_work(struct work_struct *work)
 {
-	struct snd_compr_runtime *rtd = cstream->runtime;
-	struct snd_sof_dev *sdev =
-				snd_soc_component_get_drvdata(dai->component);
-	int ret;
-
-	cstream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV_SG;
-	cstream->dma_buffer.dev.dev = sdev->dev;
-	ret = snd_compr_malloc_pages(cstream, rtd->buffer_size);
-	if (ret < 0)
-		return ret;
-
-	ret = snd_sof_probe_compr_set_params(sdev, cstream, params, dai);
-	if (ret < 0)
-		return ret;
-
-	ret = sof_ipc_probe_init(sdev, sdev->extractor_stream_tag,
-				 rtd->dma_bytes);
-	if (ret < 0) {
-		dev_err(dai->dev, "Failed to init probe: %d\n", ret);
-		return ret;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(sof_probe_compr_set_params);
-
-int sof_probe_compr_trigger(struct snd_compr_stream *cstream, int cmd,
-		struct snd_soc_dai *dai)
-{
-	struct snd_sof_dev *sdev =
-				snd_soc_component_get_drvdata(dai->component);
-
-	return snd_sof_probe_compr_trigger(sdev, cstream, cmd, dai);
-}
-EXPORT_SYMBOL(sof_probe_compr_trigger);
-
-int sof_probe_compr_pointer(struct snd_compr_stream *cstream,
-		struct snd_compr_tstamp *tstamp, struct snd_soc_dai *dai)
-{
-	struct snd_sof_dev *sdev =
-				snd_soc_component_get_drvdata(dai->component);
-
-	return snd_sof_probe_compr_pointer(sdev, cstream, tstamp, dai);
+	INIT_WORK(work, snd_sof_compr_fragment_elapsed_work);
 }
-EXPORT_SYMBOL(sof_probe_compr_pointer);
 
-int sof_probe_compr_copy(struct snd_soc_component *component,
-			 struct snd_compr_stream *cstream,
-			 char __user *buf, size_t count)
+/*
+ * sof compr fragment elapse, this could be called in irq thread context
+ */
+void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream)
 {
-	struct snd_compr_runtime *rtd = cstream->runtime;
-	unsigned int offset, n;
-	void *ptr;
-	int ret;
+	struct snd_soc_component *component;
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_sof_pcm *spcm;
 
-	if (count > rtd->buffer_size)
-		count = rtd->buffer_size;
+	if (!cstream)
+		return;
 
-	div_u64_rem(rtd->total_bytes_transferred, rtd->buffer_size, &offset);
-	ptr = rtd->dma_area + offset;
-	n = rtd->buffer_size - offset;
+	rtd = cstream->private_data;
+	component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
 
-	if (count < n) {
-		ret = copy_to_user(buf, ptr, count);
-	} else {
-		ret = copy_to_user(buf, ptr, n);
-		ret += copy_to_user(buf + n, rtd->dma_area, count - n);
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm) {
+		dev_err(component->dev,
+			"fragment elapsed called for unknown stream!\n");
+		return;
 	}
 
-	if (ret)
-		return count - ret;
-	return count;
+	/* use the same workqueue-based solution as for PCM, cf. snd_sof_pcm_elapsed */
+	schedule_work(&spcm->stream[cstream->direction].period_elapsed_work);
 }
-EXPORT_SYMBOL(sof_probe_compr_copy);