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94 lines
2.5 KiB
94 lines
2.5 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) 2018 Intel Corporation. All rights reserved. |
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// |
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// Authors: Liam Girdwood <[email protected]> |
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// Ranjani Sridharan <[email protected]> |
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// Rander Wang <[email protected]> |
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// Keyon Jie <[email protected]> |
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// |
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/* |
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* Hardware interface for generic Intel audio DSP HDA IP |
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*/ |
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#include <sound/hdaudio_ext.h> |
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#include "../ops.h" |
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#include "hda.h" |
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static int hda_dsp_trace_prepare(struct snd_sof_dev *sdev) |
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{ |
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struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; |
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struct hdac_ext_stream *stream = hda->dtrace_stream; |
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struct hdac_stream *hstream = &stream->hstream; |
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struct snd_dma_buffer *dmab = &sdev->dmatb; |
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int ret; |
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hstream->period_bytes = 0;/* initialize period_bytes */ |
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hstream->bufsize = sdev->dmatb.bytes; |
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ret = hda_dsp_stream_hw_params(sdev, stream, dmab, NULL); |
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if (ret < 0) |
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dev_err(sdev->dev, "error: hdac prepare failed: %d\n", ret); |
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return ret; |
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} |
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int hda_dsp_trace_init(struct snd_sof_dev *sdev, u32 *stream_tag) |
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{ |
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struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; |
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int ret; |
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hda->dtrace_stream = hda_dsp_stream_get(sdev, SNDRV_PCM_STREAM_CAPTURE, |
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SOF_HDA_STREAM_DMI_L1_COMPATIBLE); |
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if (!hda->dtrace_stream) { |
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dev_err(sdev->dev, |
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"error: no available capture stream for DMA trace\n"); |
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return -ENODEV; |
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} |
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*stream_tag = hda->dtrace_stream->hstream.stream_tag; |
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/* |
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* initialize capture stream, set BDL address and return corresponding |
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* stream tag which will be sent to the firmware by IPC message. |
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*/ |
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ret = hda_dsp_trace_prepare(sdev); |
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if (ret < 0) { |
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dev_err(sdev->dev, "error: hdac trace init failed: %d\n", ret); |
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hda_dsp_stream_put(sdev, SNDRV_PCM_STREAM_CAPTURE, *stream_tag); |
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hda->dtrace_stream = NULL; |
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*stream_tag = 0; |
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} |
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return ret; |
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} |
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int hda_dsp_trace_release(struct snd_sof_dev *sdev) |
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{ |
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struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; |
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struct hdac_stream *hstream; |
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if (hda->dtrace_stream) { |
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hstream = &hda->dtrace_stream->hstream; |
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hda_dsp_stream_put(sdev, |
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SNDRV_PCM_STREAM_CAPTURE, |
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hstream->stream_tag); |
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hda->dtrace_stream = NULL; |
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return 0; |
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} |
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dev_dbg(sdev->dev, "DMA trace stream is not opened!\n"); |
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return -ENODEV; |
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} |
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int hda_dsp_trace_trigger(struct snd_sof_dev *sdev, int cmd) |
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{ |
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struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata; |
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return hda_dsp_stream_trigger(sdev, hda->dtrace_stream, cmd); |
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}
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