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) 2019-2020 Intel Corporation. All rights reserved.
7//
8// Author: Cezary Rojewski <cezary.rojewski@intel.com>
9//
10
11#include <sound/hdaudio_ext.h>
12#include <sound/soc.h>
13#include "../sof-priv.h"
14#include "hda.h"
15
16static inline struct hdac_ext_stream *
17hda_compr_get_stream(struct snd_compr_stream *cstream)
18{
19	return cstream->runtime->private_data;
20}
21
22int hda_probe_compr_assign(struct snd_sof_dev *sdev,
23			   struct snd_compr_stream *cstream,
24			   struct snd_soc_dai *dai)
25{
26	struct hdac_ext_stream *stream;
27
28	stream = hda_dsp_stream_get(sdev, cstream->direction);
29	if (!stream)
30		return -EBUSY;
31
32	hdac_stream(stream)->curr_pos = 0;
33	hdac_stream(stream)->cstream = cstream;
34	cstream->runtime->private_data = stream;
35
36	return hdac_stream(stream)->stream_tag;
37}
38
39int hda_probe_compr_free(struct snd_sof_dev *sdev,
40			 struct snd_compr_stream *cstream,
41			 struct snd_soc_dai *dai)
42{
43	struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
44	int ret;
45
46	ret = hda_dsp_stream_put(sdev, cstream->direction,
47				 hdac_stream(stream)->stream_tag);
48	if (ret < 0) {
49		dev_dbg(sdev->dev, "stream put failed: %d\n", ret);
50		return ret;
51	}
52
53	hdac_stream(stream)->cstream = NULL;
54	cstream->runtime->private_data = NULL;
55
56	return 0;
57}
58
59int hda_probe_compr_set_params(struct snd_sof_dev *sdev,
60			       struct snd_compr_stream *cstream,
61			       struct snd_compr_params *params,
62			       struct snd_soc_dai *dai)
63{
64	struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
65	struct hdac_stream *hstream = hdac_stream(stream);
66	struct snd_dma_buffer *dmab;
67	u32 bits, rate;
68	int bps, ret;
69
70	dmab = cstream->runtime->dma_buffer_p;
71	/* compr params do not store bit depth, default to S32_LE */
72	bps = snd_pcm_format_physical_width(SNDRV_PCM_FORMAT_S32_LE);
73	if (bps < 0)
74		return bps;
75	bits = hda_dsp_get_bits(sdev, bps);
76	rate = hda_dsp_get_mult_div(sdev, params->codec.sample_rate);
77
78	hstream->format_val = rate | bits | (params->codec.ch_out - 1);
79	hstream->bufsize = cstream->runtime->buffer_size;
80	hstream->period_bytes = cstream->runtime->fragment_size;
81	hstream->no_period_wakeup = 0;
82
83	ret = hda_dsp_stream_hw_params(sdev, stream, dmab, NULL);
84	if (ret < 0) {
85		dev_err(sdev->dev, "error: hdac prepare failed: %x\n", ret);
86		return ret;
87	}
88
89	return 0;
90}
91
92int hda_probe_compr_trigger(struct snd_sof_dev *sdev,
93			    struct snd_compr_stream *cstream, int cmd,
94			    struct snd_soc_dai *dai)
95{
96	struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
97
98	return hda_dsp_stream_trigger(sdev, stream, cmd);
99}
100
101int hda_probe_compr_pointer(struct snd_sof_dev *sdev,
102			    struct snd_compr_stream *cstream,
103			    struct snd_compr_tstamp *tstamp,
104			    struct snd_soc_dai *dai)
105{
106	struct hdac_ext_stream *stream = hda_compr_get_stream(cstream);
107	struct snd_soc_pcm_stream *pstream;
108
109	pstream = &dai->driver->capture;
110	tstamp->copied_total = hdac_stream(stream)->curr_pos;
111	tstamp->sampling_rate = snd_pcm_rate_bit_to_rate(pstream->rates);
112
113	return 0;
114}
115