1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
// SPDX-License-Identifier: (GPL-2.0 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) 2019-2020 Intel Corporation. All rights reserved.
//
// Author: Cezary Rojewski <cezary.rojewski@intel.com>
//
#include <sound/soc.h>
#include "compress.h"
#include "ops.h"
#include "probe.h"
struct snd_compr_ops sof_probe_compressed_ops = {
.copy = sof_probe_compr_copy,
};
EXPORT_SYMBOL(sof_probe_compressed_ops);
int sof_probe_compr_open(struct snd_compr_stream *cstream,
struct snd_soc_dai *dai)
{
struct snd_sof_dev *sdev =
snd_soc_component_get_drvdata(dai->component);
int ret;
ret = snd_sof_probe_compr_assign(sdev, cstream, dai);
if (ret < 0) {
dev_err(dai->dev, "Failed to assign probe stream: %d\n", ret);
return ret;
}
sdev->extractor_stream_tag = ret;
return 0;
}
EXPORT_SYMBOL(sof_probe_compr_open);
int sof_probe_compr_free(struct snd_compr_stream *cstream,
struct snd_soc_dai *dai)
{
struct snd_sof_dev *sdev =
snd_soc_component_get_drvdata(dai->component);
struct sof_probe_point_desc *desc;
size_t num_desc;
int i, ret;
/* disconnect all probe points */
ret = sof_ipc_probe_points_info(sdev, &desc, &num_desc);
if (ret < 0) {
dev_err(dai->dev, "Failed to get probe points: %d\n", ret);
goto exit;
}
for (i = 0; i < num_desc; i++)
sof_ipc_probe_points_remove(sdev, &desc[i].buffer_id, 1);
kfree(desc);
exit:
ret = sof_ipc_probe_deinit(sdev);
if (ret < 0)
dev_err(dai->dev, "Failed to deinit probe: %d\n", ret);
sdev->extractor_stream_tag = SOF_PROBE_INVALID_NODE_ID;
snd_compr_free_pages(cstream);
return snd_sof_probe_compr_free(sdev, cstream, dai);
}
EXPORT_SYMBOL(sof_probe_compr_free);
int sof_probe_compr_set_params(struct snd_compr_stream *cstream,
struct snd_compr_params *params, struct snd_soc_dai *dai)
{
struct snd_compr_runtime *rtd = cstream->runtime;
struct snd_sof_dev *sdev =
snd_soc_component_get_drvdata(dai->component);
int ret;
cstream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV_SG;
cstream->dma_buffer.dev.dev = sdev->dev;
ret = snd_compr_malloc_pages(cstream, rtd->buffer_size);
if (ret < 0)
return ret;
ret = snd_sof_probe_compr_set_params(sdev, cstream, params, dai);
if (ret < 0)
return ret;
ret = sof_ipc_probe_init(sdev, sdev->extractor_stream_tag,
rtd->dma_bytes);
if (ret < 0) {
dev_err(dai->dev, "Failed to init probe: %d\n", ret);
return ret;
}
return 0;
}
EXPORT_SYMBOL(sof_probe_compr_set_params);
int sof_probe_compr_trigger(struct snd_compr_stream *cstream, int cmd,
struct snd_soc_dai *dai)
{
struct snd_sof_dev *sdev =
snd_soc_component_get_drvdata(dai->component);
return snd_sof_probe_compr_trigger(sdev, cstream, cmd, dai);
}
EXPORT_SYMBOL(sof_probe_compr_trigger);
int sof_probe_compr_pointer(struct snd_compr_stream *cstream,
struct snd_compr_tstamp *tstamp, struct snd_soc_dai *dai)
{
struct snd_sof_dev *sdev =
snd_soc_component_get_drvdata(dai->component);
return snd_sof_probe_compr_pointer(sdev, cstream, tstamp, dai);
}
EXPORT_SYMBOL(sof_probe_compr_pointer);
int sof_probe_compr_copy(struct snd_compr_stream *cstream,
char __user *buf, size_t count)
{
struct snd_compr_runtime *rtd = cstream->runtime;
unsigned int offset, n;
void *ptr;
int ret;
if (count > rtd->buffer_size)
count = rtd->buffer_size;
div_u64_rem(rtd->total_bytes_transferred, rtd->buffer_size, &offset);
ptr = rtd->dma_area + offset;
n = rtd->buffer_size - offset;
if (count < n) {
ret = copy_to_user(buf, ptr, count);
} else {
ret = copy_to_user(buf, ptr, n);
ret += copy_to_user(buf + n, rtd->dma_area, count - n);
}
if (ret)
return count - ret;
return count;
}
EXPORT_SYMBOL(sof_probe_compr_copy);
|
