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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "SensorsSubHal.h"
#include <android/hardware/sensors/2.0/types.h>
#include <log/log.h>
ISensorsSubHal* sensorsHalGetSubHal(uint32_t* version) {
static ::android::hardware::sensors::V2_0::subhal::implementation::SensorsSubHal subHal;
*version = SUB_HAL_2_0_VERSION;
return &subHal;
}
namespace android {
namespace hardware {
namespace sensors {
namespace V2_0 {
namespace subhal {
namespace implementation {
using ::android::hardware::Void;
using ::android::hardware::sensors::V1_0::Event;
using ::android::hardware::sensors::V1_0::OperationMode;
using ::android::hardware::sensors::V1_0::RateLevel;
using ::android::hardware::sensors::V1_0::Result;
using ::android::hardware::sensors::V1_0::SharedMemInfo;
using ::android::hardware::sensors::V2_0::SensorTimeout;
using ::android::hardware::sensors::V2_0::WakeLockQueueFlagBits;
using ::android::hardware::sensors::V2_0::implementation::ScopedWakelock;
#define SENSOR_SUPPORTED(SENSOR_NAME, SENSOR_TYPE) \
{ .name = SENSOR_NAME, .type = SENSOR_TYPE, }
static const std::vector<sensors_supported_hal> sensors_supported = {
SENSOR_SUPPORTED("scmi.iio.accel", SensorType::ACCELEROMETER),
SENSOR_SUPPORTED("scmi.iio.gyro", SensorType::GYROSCOPE),
};
SensorsSubHal::SensorsSubHal() : mCallback(nullptr), mNextHandle(1) {
int err;
std::vector<iio_device_data> iio_devices;
err = load_iio_devices(&iio_devices, sensors_supported);
if (err == 0) {
for (auto i = 0u; i < iio_devices.size(); i++) {
err = scan_elements(iio_devices[i].sysfspath, &iio_devices[i]);
if (err == 0) {
err = enable_sensor(iio_devices[i].sysfspath, false);
if (err == 0) {
switch (iio_devices[i].type) {
case SensorType::ACCELEROMETER:
if (iio_devices[i].channelInfo.size() == NUM_OF_CHANNEL_SUPPORTED) {
AddSensor<Accelerometer>(iio_devices[i]);
} else {
ALOGE("Unexpected number of channels for Accelerometer");
}
break;
case SensorType::GYROSCOPE:
if (iio_devices[i].channelInfo.size() == NUM_OF_CHANNEL_SUPPORTED) {
AddSensor<Gyroscope>(iio_devices[i]);
} else {
ALOGE("Unexpected number fo channels for Gyroscope");
}
break;
default:
break;
}
} else {
ALOGE("SensorsSubHal(): Error in enabling_sensor %s to %d error code %d",
iio_devices[i].sysfspath.c_str(), false, err);
}
} else {
ALOGE("SensorsSubHal(): Error in scanning channels for IIO device %s error code %d",
iio_devices[i].sysfspath.c_str(), err);
}
}
} else {
ALOGE("SensorsSubHal: load_iio_devices returned error %d", err);
}
}
// Methods from ::android::hardware::sensors::V2_0::ISensors follow.
Return<void> SensorsSubHal::getSensorsList(getSensorsList_cb _hidl_cb) {
std::vector<SensorInfo> sensors;
for (const auto& sensor : mSensors) {
SensorInfo sensorInfo = sensor.second->getSensorInfo();
sensorInfo.flags &= ~static_cast<uint32_t>(V1_0::SensorFlagBits::MASK_DIRECT_CHANNEL);
sensorInfo.flags &= ~static_cast<uint32_t>(V1_0::SensorFlagBits::MASK_DIRECT_REPORT);
sensors.push_back(sensorInfo);
}
_hidl_cb(sensors);
return Void();
}
Return<Result> SensorsSubHal::setOperationMode(OperationMode mode) {
for (auto& sensor : mSensors) {
sensor.second->setOperationMode(mode);
}
mCurrentOperationMode = mode;
return Result::OK;
}
Return<Result> SensorsSubHal::activate(int32_t sensorHandle, bool enabled) {
auto sensor = mSensors.find(sensorHandle);
if (sensor != mSensors.end()) {
sensor->second->activate(enabled);
return Result::OK;
}
return Result::BAD_VALUE;
}
Return<Result> SensorsSubHal::batch(int32_t sensorHandle, int64_t samplingPeriodNs,
int64_t /* maxReportLatencyNs */) {
auto sensor = mSensors.find(sensorHandle);
if (sensor != mSensors.end()) {
sensor->second->batch(samplingPeriodNs);
return Result::OK;
}
return Result::BAD_VALUE;
}
Return<Result> SensorsSubHal::flush(int32_t sensorHandle) {
auto sensor = mSensors.find(sensorHandle);
if (sensor != mSensors.end()) {
return sensor->second->flush();
}
return Result::BAD_VALUE;
}
Return<Result> SensorsSubHal::injectSensorData(const Event& /* event */) {
return Result::INVALID_OPERATION;
}
Return<void> SensorsSubHal::registerDirectChannel(const SharedMemInfo& /* mem */,
registerDirectChannel_cb _hidl_cb) {
_hidl_cb(Result::INVALID_OPERATION, -1 /* channelHandle */);
return Return<void>();
}
Return<Result> SensorsSubHal::unregisterDirectChannel(int32_t /* channelHandle */) {
return Result::INVALID_OPERATION;
}
Return<void> SensorsSubHal::configDirectReport(int32_t /* sensorHandle */,
int32_t /* channelHandle */, RateLevel /* rate */,
configDirectReport_cb _hidl_cb) {
_hidl_cb(Result::INVALID_OPERATION, 0 /* reportToken */);
return Return<void>();
}
Return<void> SensorsSubHal::debug(const hidl_handle& fd, const hidl_vec<hidl_string>& args) {
if (fd.getNativeHandle() == nullptr || fd->numFds < 1) {
ALOGE("%s: missing fd for writing", __FUNCTION__);
return Void();
}
FILE* out = fdopen(dup(fd->data[0]), "w");
if (args.size() != 0) {
fprintf(out,
"Note: sub-HAL %s currently does not support args. Input arguments are "
"ignored.\n",
getName().c_str());
}
std::ostringstream stream;
stream << "Available sensors:" << std::endl;
for (auto& sensor : mSensors) {
SensorInfo info = sensor.second->getSensorInfo();
HWSensorBase* hwSensor = static_cast<HWSensorBase*>(sensor.second.get());
stream << "Name: " << info.name << std::endl;
stream << "handle: " << info.sensorHandle << std::endl;
stream << "resolution: " << info.resolution << " minDelay: " << info.minDelay
<< " maxDelay:" << info.maxDelay << std::endl;
stream << "iio path" << hwSensor->miio_data.sysfspath << std::endl;
}
stream << std::endl;
fprintf(out, "%s", stream.str().c_str());
fclose(out);
return Return<void>();
}
Return<Result> SensorsSubHal::initialize(const sp<IHalProxyCallback>& halProxyCallback) {
mCallback = halProxyCallback;
setOperationMode(OperationMode::NORMAL);
return Result::OK;
}
void SensorsSubHal::postEvents(const std::vector<Event>& events, bool wakeup) {
ScopedWakelock wakelock = mCallback->createScopedWakelock(wakeup);
mCallback->postEvents(events, std::move(wakelock));
}
} // namespace implementation
} // namespace subhal
} // namespace V2_0
} // namespace sensors
} // namespace hardware
} // namespace android
|
