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) 2019-2021 Intel Corporation
7 //
8 // Author: Cezary Rojewski <cezary.rojewski@intel.com>
9 // Converted to SOF client:
10 // Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
11 // Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
12 //
13
14 #include <linux/module.h>
15 #include <sound/hdaudio_ext.h>
16 #include <sound/soc.h>
17 #include "../sof-priv.h"
18 #include "../sof-client-probes.h"
19 #include "../sof-client.h"
20 #include "hda.h"
21
22 static inline struct hdac_ext_stream *
23 hda_compr_get_stream(struct snd_compr_stream *cstream)
24 {
25 return cstream->runtime->private_data;
26 }
27
28 static int hda_probes_compr_startup(struct sof_client_dev *cdev,
29 struct snd_compr_stream *cstream,
30 struct snd_soc_dai *dai, u32 *stream_id)
31 {
32 struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev);
33 struct hdac_ext_stream *hext_stream;
34
35 hext_stream = hda_dsp_stream_get(sdev, cstream->direction, 0);
36 if (!hext_stream)
37 return -EBUSY;
38
39 hdac_stream(hext_stream)->curr_pos = 0;
40 hdac_stream(hext_stream)->cstream = cstream;
41 cstream->runtime->private_data = hext_stream;
42
43 *stream_id = hdac_stream(hext_stream)->stream_tag;
44
45 return 0;
46 }
47
48 static int hda_probes_compr_shutdown(struct sof_client_dev *cdev,
49 struct snd_compr_stream *cstream,
50 struct snd_soc_dai *dai)
51 {
52 struct hdac_ext_stream *hext_stream = hda_compr_get_stream(cstream);
53 struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev);
54 int ret;
55
56 ret = hda_dsp_stream_put(sdev, cstream->direction,
57 hdac_stream(hext_stream)->stream_tag);
58 if (ret < 0) {
59 dev_dbg(sdev->dev, "stream put failed: %d\n", ret);
60 return ret;
61 }
62
63 hdac_stream(hext_stream)->cstream = NULL;
64 cstream->runtime->private_data = NULL;
65
66 return 0;
67 }
68
69 static int hda_probes_compr_set_params(struct sof_client_dev *cdev,
70 struct snd_compr_stream *cstream,
71 struct snd_compr_params *params,
72 struct snd_soc_dai *dai)
73 {
74 struct hdac_ext_stream *hext_stream = hda_compr_get_stream(cstream);
75 struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev);
76 struct hdac_stream *hstream = hdac_stream(hext_stream);
77 struct snd_dma_buffer *dmab;
78 u32 bits, rate;
79 int bps, ret;
80
81 dmab = cstream->runtime->dma_buffer_p;
82 /* compr params do not store bit depth, default to S32_LE */
83 bps = snd_pcm_format_physical_width(SNDRV_PCM_FORMAT_S32_LE);
84 if (bps < 0)
85 return bps;
86 bits = hda_dsp_get_bits(sdev, bps);
87 rate = hda_dsp_get_mult_div(sdev, params->codec.sample_rate);
88
89 hstream->format_val = rate | bits | (params->codec.ch_out - 1);
90 hstream->bufsize = cstream->runtime->buffer_size;
91 hstream->period_bytes = cstream->runtime->fragment_size;
92 hstream->no_period_wakeup = 0;
93
94 ret = hda_dsp_stream_hw_params(sdev, hext_stream, dmab, NULL);
95 if (ret < 0) {
96 dev_err(sdev->dev, "error: hdac prepare failed: %d\n", ret);
97 return ret;
98 }
99
100 return 0;
101 }
102
103 static int hda_probes_compr_trigger(struct sof_client_dev *cdev,
104 struct snd_compr_stream *cstream,
105 int cmd, struct snd_soc_dai *dai)
106 {
107 struct hdac_ext_stream *hext_stream = hda_compr_get_stream(cstream);
108 struct snd_sof_dev *sdev = sof_client_dev_to_sof_dev(cdev);
109
110 return hda_dsp_stream_trigger(sdev, hext_stream, cmd);
111 }
112
113 static int hda_probes_compr_pointer(struct sof_client_dev *cdev,
114 struct snd_compr_stream *cstream,
115 struct snd_compr_tstamp *tstamp,
116 struct snd_soc_dai *dai)
117 {
118 struct hdac_ext_stream *hext_stream = hda_compr_get_stream(cstream);
119 struct snd_soc_pcm_stream *pstream;
120
121 pstream = &dai->driver->capture;
122 tstamp->copied_total = hdac_stream(hext_stream)->curr_pos;
123 tstamp->sampling_rate = snd_pcm_rate_bit_to_rate(pstream->rates);
124
125 return 0;
126 }
127
128 /* SOF client implementation */
129 static const struct sof_probes_host_ops hda_probes_ops = {
130 .startup = hda_probes_compr_startup,
131 .shutdown = hda_probes_compr_shutdown,
132 .set_params = hda_probes_compr_set_params,
133 .trigger = hda_probes_compr_trigger,
134 .pointer = hda_probes_compr_pointer,
135 };
136
137 int hda_probes_register(struct snd_sof_dev *sdev)
138 {
139 return sof_client_dev_register(sdev, "hda-probes", 0, &hda_probes_ops,
140 sizeof(hda_probes_ops));
141 }
142 EXPORT_SYMBOL_NS(hda_probes_register, SND_SOC_SOF_INTEL_HDA_COMMON);
143
144 void hda_probes_unregister(struct snd_sof_dev *sdev)
145 {
146 sof_client_dev_unregister(sdev, "hda-probes", 0);
147 }
148 EXPORT_SYMBOL_NS(hda_probes_unregister, SND_SOC_SOF_INTEL_HDA_COMMON);
149
150 MODULE_IMPORT_NS(SND_SOC_SOF_CLIENT);
151
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