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147 lines
3.8 KiB
147 lines
3.8 KiB
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) |
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// |
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// This file is provided under a dual BSD/GPLv2 license. When using or |
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// redistributing this file, you may do so under either license. |
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// |
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// Copyright(c) 2019-2020 Intel Corporation. All rights reserved. |
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// |
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// Author: Cezary Rojewski <[email protected]> |
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// |
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#include <sound/soc.h> |
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#include "compress.h" |
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#include "ops.h" |
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#include "probe.h" |
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struct snd_compress_ops sof_probe_compressed_ops = { |
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.copy = sof_probe_compr_copy, |
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}; |
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EXPORT_SYMBOL(sof_probe_compressed_ops); |
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int sof_probe_compr_open(struct snd_compr_stream *cstream, |
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struct snd_soc_dai *dai) |
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{ |
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struct snd_sof_dev *sdev = |
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snd_soc_component_get_drvdata(dai->component); |
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int ret; |
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ret = snd_sof_probe_compr_assign(sdev, cstream, dai); |
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if (ret < 0) { |
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dev_err(dai->dev, "Failed to assign probe stream: %d\n", ret); |
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return ret; |
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} |
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sdev->extractor_stream_tag = ret; |
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return 0; |
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} |
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EXPORT_SYMBOL(sof_probe_compr_open); |
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int sof_probe_compr_free(struct snd_compr_stream *cstream, |
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struct snd_soc_dai *dai) |
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{ |
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struct snd_sof_dev *sdev = |
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snd_soc_component_get_drvdata(dai->component); |
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struct sof_probe_point_desc *desc; |
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size_t num_desc; |
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int i, ret; |
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/* disconnect all probe points */ |
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ret = sof_ipc_probe_points_info(sdev, &desc, &num_desc); |
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if (ret < 0) { |
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dev_err(dai->dev, "Failed to get probe points: %d\n", ret); |
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goto exit; |
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} |
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for (i = 0; i < num_desc; i++) |
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sof_ipc_probe_points_remove(sdev, &desc[i].buffer_id, 1); |
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kfree(desc); |
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exit: |
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ret = sof_ipc_probe_deinit(sdev); |
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if (ret < 0) |
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dev_err(dai->dev, "Failed to deinit probe: %d\n", ret); |
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sdev->extractor_stream_tag = SOF_PROBE_INVALID_NODE_ID; |
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snd_compr_free_pages(cstream); |
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return snd_sof_probe_compr_free(sdev, cstream, dai); |
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} |
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EXPORT_SYMBOL(sof_probe_compr_free); |
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int sof_probe_compr_set_params(struct snd_compr_stream *cstream, |
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struct snd_compr_params *params, struct snd_soc_dai *dai) |
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{ |
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struct snd_compr_runtime *rtd = cstream->runtime; |
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struct snd_sof_dev *sdev = |
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snd_soc_component_get_drvdata(dai->component); |
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int ret; |
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cstream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV_SG; |
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cstream->dma_buffer.dev.dev = sdev->dev; |
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ret = snd_compr_malloc_pages(cstream, rtd->buffer_size); |
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if (ret < 0) |
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return ret; |
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ret = snd_sof_probe_compr_set_params(sdev, cstream, params, dai); |
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if (ret < 0) |
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return ret; |
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ret = sof_ipc_probe_init(sdev, sdev->extractor_stream_tag, |
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rtd->dma_bytes); |
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if (ret < 0) { |
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dev_err(dai->dev, "Failed to init probe: %d\n", ret); |
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return ret; |
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} |
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return 0; |
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} |
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EXPORT_SYMBOL(sof_probe_compr_set_params); |
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int sof_probe_compr_trigger(struct snd_compr_stream *cstream, int cmd, |
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struct snd_soc_dai *dai) |
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{ |
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struct snd_sof_dev *sdev = |
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snd_soc_component_get_drvdata(dai->component); |
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return snd_sof_probe_compr_trigger(sdev, cstream, cmd, dai); |
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} |
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EXPORT_SYMBOL(sof_probe_compr_trigger); |
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int sof_probe_compr_pointer(struct snd_compr_stream *cstream, |
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struct snd_compr_tstamp *tstamp, struct snd_soc_dai *dai) |
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{ |
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struct snd_sof_dev *sdev = |
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snd_soc_component_get_drvdata(dai->component); |
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return snd_sof_probe_compr_pointer(sdev, cstream, tstamp, dai); |
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} |
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EXPORT_SYMBOL(sof_probe_compr_pointer); |
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int sof_probe_compr_copy(struct snd_soc_component *component, |
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struct snd_compr_stream *cstream, |
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char __user *buf, size_t count) |
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{ |
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struct snd_compr_runtime *rtd = cstream->runtime; |
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unsigned int offset, n; |
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void *ptr; |
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int ret; |
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if (count > rtd->buffer_size) |
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count = rtd->buffer_size; |
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div_u64_rem(rtd->total_bytes_transferred, rtd->buffer_size, &offset); |
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ptr = rtd->dma_area + offset; |
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n = rtd->buffer_size - offset; |
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if (count < n) { |
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ret = copy_to_user(buf, ptr, count); |
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} else { |
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ret = copy_to_user(buf, ptr, n); |
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ret += copy_to_user(buf + n, rtd->dma_area, count - n); |
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} |
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if (ret) |
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return count - ret; |
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return count; |
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} |
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EXPORT_SYMBOL(sof_probe_compr_copy);
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