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
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* ipa_vimc.cpp - Vimc Image Processing Algorithm module
*/
#include <libcamera/ipa/vimc_ipa_interface.h>
#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include <iostream>
#include <libcamera/base/file.h>
#include <libcamera/base/log.h>
#include <libcamera/ipa/ipa_interface.h>
#include <libcamera/ipa/ipa_module_info.h>
namespace libcamera {
LOG_DEFINE_CATEGORY(IPAVimc)
class IPAVimc : public ipa::vimc::IPAVimcInterface
{
public:
IPAVimc();
~IPAVimc();
int init(const IPASettings &settings) override;
int start() override;
void stop() override;
private:
void initTrace();
void trace(enum ipa::vimc::IPAOperationCode operation);
int fd_;
};
IPAVimc::IPAVimc()
: fd_(-1)
{
initTrace();
}
IPAVimc::~IPAVimc()
{
if (fd_ != -1)
::close(fd_);
}
int IPAVimc::init(const IPASettings &settings)
{
trace(ipa::vimc::IPAOperationInit);
LOG(IPAVimc, Debug)
<< "initializing vimc IPA with configuration file "
<< settings.configurationFile;
File conf(settings.configurationFile);
if (!conf.open(File::ReadOnly)) {
LOG(IPAVimc, Error) << "Failed to open configuration file";
return -EINVAL;
}
return 0;
}
int IPAVimc::start()
{
trace(ipa::vimc::IPAOperationStart);
LOG(IPAVimc, Debug) << "start vimc IPA!";
return 0;
}
void IPAVimc::stop()
{
trace(ipa::vimc::IPAOperationStop);
LOG(IPAVimc, Debug) << "stop vimc IPA!";
}
void IPAVimc::initTrace()
{
struct stat fifoStat;
int ret = stat(ipa::vimc::VimcIPAFIFOPath.c_str(), &fifoStat);
if (ret)
return;
ret = ::open(ipa::vimc::VimcIPAFIFOPath.c_str(), O_WRONLY);
if (ret < 0) {
ret = errno;
LOG(IPAVimc, Error) << "Failed to open vimc IPA test FIFO: "
<< strerror(ret);
return;
}
fd_ = ret;
}
void IPAVimc::trace(enum ipa::vimc::IPAOperationCode operation)
{
if (fd_ < 0)
return;
int ret = ::write(fd_, &operation, sizeof(operation));
if (ret < 0) {
ret = errno;
LOG(IPAVimc, Error) << "Failed to write to vimc IPA test FIFO: "
<< strerror(ret);
}
}
/*
* External IPA module interface
*/
extern "C" {
const struct IPAModuleInfo ipaModuleInfo = {
IPA_MODULE_API_VERSION,
0,
"PipelineHandlerVimc",
"vimc",
};
IPAInterface *ipaCreate()
{
return new IPAVimc();
}
}
} /* namespace libcamera */
|
