mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-11 13:04:03 +08:00
4b49cbd1e7
Stop host code (AMD, Intel) to access sdev->dmatb directly. Modify the trace_init prototype to include the pointer to a struct snd_dma_buffer. The ipc3-dtrace passes for now the pointer to sdev->dmatb, but the aim is to move all tracing related runtime information local to a trace implementation. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://lore.kernel.org/r/20220516104711.26115-7-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
// 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) 2018 Intel Corporation. All rights reserved.
|
|
//
|
|
// Authors: Liam Girdwood <liam.r.girdwood@linux.intel.com>
|
|
// Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
|
|
// Rander Wang <rander.wang@intel.com>
|
|
// Keyon Jie <yang.jie@linux.intel.com>
|
|
//
|
|
|
|
/*
|
|
* Hardware interface for generic Intel audio DSP HDA IP
|
|
*/
|
|
|
|
#include <sound/hdaudio_ext.h>
|
|
#include "../ops.h"
|
|
#include "hda.h"
|
|
|
|
static int hda_dsp_trace_prepare(struct snd_sof_dev *sdev, struct snd_dma_buffer *dmab)
|
|
{
|
|
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
|
|
struct hdac_ext_stream *hext_stream = hda->dtrace_stream;
|
|
struct hdac_stream *hstream = &hext_stream->hstream;
|
|
int ret;
|
|
|
|
hstream->period_bytes = 0;/* initialize period_bytes */
|
|
hstream->bufsize = dmab->bytes;
|
|
|
|
ret = hda_dsp_stream_hw_params(sdev, hext_stream, dmab, NULL);
|
|
if (ret < 0)
|
|
dev_err(sdev->dev, "error: hdac prepare failed: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int hda_dsp_trace_init(struct snd_sof_dev *sdev, struct snd_dma_buffer *dmab,
|
|
struct sof_ipc_dma_trace_params_ext *dtrace_params)
|
|
{
|
|
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
|
|
int ret;
|
|
|
|
hda->dtrace_stream = hda_dsp_stream_get(sdev, SNDRV_PCM_STREAM_CAPTURE,
|
|
SOF_HDA_STREAM_DMI_L1_COMPATIBLE);
|
|
|
|
if (!hda->dtrace_stream) {
|
|
dev_err(sdev->dev,
|
|
"error: no available capture stream for DMA trace\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
dtrace_params->stream_tag = hda->dtrace_stream->hstream.stream_tag;
|
|
|
|
/*
|
|
* initialize capture stream, set BDL address and return corresponding
|
|
* stream tag which will be sent to the firmware by IPC message.
|
|
*/
|
|
ret = hda_dsp_trace_prepare(sdev, dmab);
|
|
if (ret < 0) {
|
|
dev_err(sdev->dev, "error: hdac trace init failed: %d\n", ret);
|
|
hda_dsp_stream_put(sdev, SNDRV_PCM_STREAM_CAPTURE,
|
|
dtrace_params->stream_tag);
|
|
hda->dtrace_stream = NULL;
|
|
dtrace_params->stream_tag = 0;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int hda_dsp_trace_release(struct snd_sof_dev *sdev)
|
|
{
|
|
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
|
|
struct hdac_stream *hstream;
|
|
|
|
if (hda->dtrace_stream) {
|
|
hstream = &hda->dtrace_stream->hstream;
|
|
hda_dsp_stream_put(sdev,
|
|
SNDRV_PCM_STREAM_CAPTURE,
|
|
hstream->stream_tag);
|
|
hda->dtrace_stream = NULL;
|
|
return 0;
|
|
}
|
|
|
|
dev_dbg(sdev->dev, "DMA trace stream is not opened!\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
int hda_dsp_trace_trigger(struct snd_sof_dev *sdev, int cmd)
|
|
{
|
|
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
|
|
|
|
return hda_dsp_stream_trigger(sdev, hda->dtrace_stream, cmd);
|
|
}
|