1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
7 //
8 // Authors: Vishnuvardhanrao Ravuapati <vishnuvardhanrao.ravulapati@amd.com>
9 // V Sujith Kumar Reddy <Vsujithkumar.Reddy@amd.com>
10
11 /*This file support Host TRACE Logger driver callback for SOF FW */
12
13 #include "acp.h"
14
15 #define ACP_LOGGER_STREAM 8
16 #define NUM_PAGES 16
17
18 int acp_sof_trace_release(struct snd_sof_dev *sdev)
19 {
20 struct acp_dsp_stream *stream;
21 struct acp_dev_data *adata;
22 int ret;
23
24 adata = sdev->pdata->hw_pdata;
25 stream = adata->dtrace_stream;
26 ret = acp_dsp_stream_put(sdev, stream);
27 if (ret < 0) {
28 dev_err(sdev->dev, "Failed to release trace stream\n");
29 return ret;
30 }
31
32 adata->dtrace_stream = NULL;
33 return 0;
34 }
35 EXPORT_SYMBOL_NS(acp_sof_trace_release, SND_SOC_SOF_AMD_COMMON);
36
37 int acp_sof_trace_init(struct snd_sof_dev *sdev, struct snd_dma_buffer *dmab,
38 struct sof_ipc_dma_trace_params_ext *dtrace_params)
39 {
40 struct acp_dsp_stream *stream;
41 struct acp_dev_data *adata;
42 int ret;
43
44 adata = sdev->pdata->hw_pdata;
45 stream = acp_dsp_stream_get(sdev, ACP_LOGGER_STREAM);
46 if (!stream)
47 return -ENODEV;
48
49 stream->dmab = dmab;
50 stream->num_pages = NUM_PAGES;
51
52 ret = acp_dsp_stream_config(sdev, stream);
53 if (ret < 0) {
54 acp_dsp_stream_put(sdev, stream);
55 return ret;
56 }
57
58 adata->dtrace_stream = stream;
59 dtrace_params->stream_tag = stream->stream_tag;
60 dtrace_params->buffer.phy_addr = stream->reg_offset;
61
62 return 0;
63 }
64 EXPORT_SYMBOL_NS(acp_sof_trace_init, SND_SOC_SOF_AMD_COMMON);
65
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