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Merge "Remove obsolete source of sensor of P23."

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TreeHugger Robot 2022-10-21 09:04:09 +00:00 • committed by Android (Google) Code Review
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sensorhal/sensorlist.cpp
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/*
* Copyright (C) 2016 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 "sensorlist.h"
#include <math.h>
#include "hubdefs.h"
using namespace android;
const int kVersion = 1;
const float kMinSampleRateHzAccel = 6.250f;
const float kMaxSampleRateHzAccel = 400.0f;
const float kAccelRangeG = 16.0f;
extern const float kScaleAccel = (kAccelRangeG * 9.81f / 32768.0f);
const float kMinSampleRateHzGyro = 6.250f;
const float kMaxSampleRateHzGyro = 400.0f;
const float kMinSampleRateHzMag = 3.125f;
const float kMaxSampleRateHzMag = 50.0f;
extern const float kScaleMag = 0.15f;
const float kMinSampleRateHzPolling = 0.1f;
const float kMaxSampleRateHzPolling = 25.0f;
const float kMinSampleRateHzPressure = 0.1f;
const float kMaxSampleRateHzPressure = 10.0f;
const float kMinSampleRateHzTemperature = kMinSampleRateHzPolling;
const float kMaxSampleRateHzTemperature = kMaxSampleRateHzPolling;
const float kMinSampleRateHzProximity = kMinSampleRateHzPolling;
const float kMaxSampleRateHzProximity = 5.0;
const float kMinSampleRateHzLight = kMinSampleRateHzPolling;
const float kMaxSampleRateHzLight = 5.0;
const float kMinSampleRateHzOrientation = 12.5f;
const float kMaxSampleRateHzOrientation = 200.0f;
#ifdef DIRECT_REPORT_ENABLED
constexpr uint32_t kDirectReportFlagAccel = (
// support up to rate level fast (nominal 200Hz);
(SENSOR_DIRECT_RATE_FAST << SENSOR_FLAG_SHIFT_DIRECT_REPORT)
// support ashmem and gralloc direct channel
| SENSOR_FLAG_DIRECT_CHANNEL_ASHMEM
| SENSOR_FLAG_DIRECT_CHANNEL_GRALLOC);
constexpr uint32_t kDirectReportFlagGyro = (
// support up to rate level fast (nominal 200Hz);
(SENSOR_DIRECT_RATE_FAST << SENSOR_FLAG_SHIFT_DIRECT_REPORT)
// support ashmem and gralloc direct channel
| SENSOR_FLAG_DIRECT_CHANNEL_ASHMEM
| SENSOR_FLAG_DIRECT_CHANNEL_GRALLOC);
constexpr uint32_t kDirectReportFlagMag = (
// support up to rate level normal (nominal 50Hz);
(SENSOR_DIRECT_RATE_NORMAL << SENSOR_FLAG_SHIFT_DIRECT_REPORT)
// support ashmem and gralloc direct channel
| SENSOR_FLAG_DIRECT_CHANNEL_ASHMEM
| SENSOR_FLAG_DIRECT_CHANNEL_GRALLOC);
#else
constexpr uint32_t kDirectReportFlagAccel = 0;
constexpr uint32_t kDirectReportFlagGyro = 0;
constexpr uint32_t kDirectReportFlagMag = 0;
#endif
/*
* The fowllowing max count is determined by the total number of blocks
* avaliable in the shared nanohub buffer and number of samples each type of
* event can hold within a buffer block.
* For marlin's case, there are 239 blocks in the shared sensor buffer and
* each block can hold 30 OneAxis Samples, 15 ThreeAxis Samples or 24
* RawThreeAxies Samples.
*/
const int kMaxOneAxisEventCount = 7170;
const int kMaxThreeAxisEventCount = 3585;
const int kMaxRawThreeAxisEventCount = 5736;
const int kMinFifoReservedEventCount = 20;
const char SENSOR_STRING_TYPE_INTERNAL_TEMPERATURE[] =
"com.google.sensor.internal_temperature";
const char SENSOR_STRING_TYPE_SYNC[] =
"com.google.sensor.sync";
const char SENSOR_STRING_TYPE_DOUBLE_TWIST[] =
"com.google.sensor.double_twist";
const char SENSOR_STRING_TYPE_DOUBLE_TAP[] =
"com.google.sensor.double_tap";
const char SENSOR_STRING_TYPE_DOUBLE_TOUCH[] =
"com.google.sensor.double_touch";
extern const sensor_t kSensorList[] = {
{
"TMD4903 Proximity Sensor",
"AMS",
kVersion,
COMMS_SENSOR_PROXIMITY,
SENSOR_TYPE_PROXIMITY,
5.0f, // maxRange (cm)
1.0f, // resolution (cm)
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzProximity), // minDelay
300, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_PROXIMITY,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzProximity), // maxDelay
SENSOR_FLAG_WAKE_UP | SENSOR_FLAG_ON_CHANGE_MODE,
{ NULL, NULL }
},
{
"TMD4903 Light Sensor",
"AMS",
kVersion,
COMMS_SENSOR_LIGHT,
SENSOR_TYPE_LIGHT,
43000.0f, // maxRange (lx)
10.0f, // XXX resolution (lx)
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzLight), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_LIGHT,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzLight), // maxDelay
SENSOR_FLAG_ON_CHANGE_MODE,
{ NULL, NULL }
},
{
"BMI160 accelerometer",
"Bosch",
kVersion,
COMMS_SENSOR_ACCEL,
SENSOR_TYPE_ACCELEROMETER,
GRAVITY_EARTH * kAccelRangeG, // maxRange
GRAVITY_EARTH * kAccelRangeG / 32768.0f, // resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzAccel), // minDelay
3000, // XXX fifoReservedEventCount
kMaxRawThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_ACCELEROMETER,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzAccel), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE | kDirectReportFlagAccel,
{ NULL, NULL }
},
{
"BMI160 gyroscope",
"Bosch",
kVersion,
COMMS_SENSOR_GYRO,
SENSOR_TYPE_GYROSCOPE,
1000.0f * M_PI / 180.0f, // maxRange
1000.0f * M_PI / (180.0f * 32768.0f), // resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzGyro), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_GYROSCOPE,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzGyro), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE | kDirectReportFlagGyro,
{ NULL, NULL }
},
{
"BMI160 gyroscope (uncalibrated)",
"Bosch",
kVersion,
COMMS_SENSOR_GYRO_UNCALIBRATED,
SENSOR_TYPE_GYROSCOPE_UNCALIBRATED,
1000.0f * M_PI / 180.0f, // maxRange
1000.0f * M_PI / (180.0f * 32768.0f), // resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzGyro), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_GYROSCOPE_UNCALIBRATED,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzGyro), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE | kDirectReportFlagGyro,
{ NULL, NULL }
},
{
"AK09915 magnetometer",
"AKM",
kVersion,
COMMS_SENSOR_MAG,
SENSOR_TYPE_MAGNETIC_FIELD,
1300.0f, // XXX maxRange
0.0f, // XXX resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzMag), // minDelay
600, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_MAGNETIC_FIELD,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzMag), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE | kDirectReportFlagMag,
{ NULL, NULL }
},
{
"AK09915 magnetometer (uncalibrated)",
"AKM",
kVersion,
COMMS_SENSOR_MAG_UNCALIBRATED,
SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED,
1300.0f, // XXX maxRange
0.0f, // XXX resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzMag), // minDelay
600, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_MAGNETIC_FIELD_UNCALIBRATED,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzMag), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE | kDirectReportFlagMag,
{ NULL, NULL }
},
{
"BMP285 pressure",
"Bosch",
kVersion,
COMMS_SENSOR_PRESSURE,
SENSOR_TYPE_PRESSURE,
1100.0f, // maxRange (hPa)
0.005f, // resolution (hPa)
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzPressure), // minDelay
300, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_PRESSURE,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzPressure), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE,
{ NULL, NULL }
},
{
"BMP285 temperature",
"Bosch",
kVersion,
COMMS_SENSOR_TEMPERATURE,
SENSOR_TYPE_INTERNAL_TEMPERATURE,
85.0f, // maxRange (degC)
0.01, // resolution (degC)
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzTemperature), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_INTERNAL_TEMPERATURE,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzTemperature), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE,
{ NULL, NULL }
},
{
"Orientation",
"Google",
kVersion,
COMMS_SENSOR_ORIENTATION,
SENSOR_TYPE_ORIENTATION,
360.0f, // maxRange (deg)
1.0f, // XXX resolution (deg)
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzOrientation), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_ORIENTATION,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzOrientation), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE,
{ NULL, NULL }
},
{
"BMI160 Step detector",
"Bosch",
kVersion,
COMMS_SENSOR_STEP_DETECTOR,
SENSOR_TYPE_STEP_DETECTOR,
1.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
0, // minDelay
100, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_STEP_DETECTOR,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_SPECIAL_REPORTING_MODE,
{ NULL, NULL }
},
{
"BMI160 Step counter",
"Bosch",
kVersion,
COMMS_SENSOR_STEP_COUNTER,
SENSOR_TYPE_STEP_COUNTER,
1.0f, // XXX maxRange
1.0f, // resolution
0.0f, // XXX power
0, // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_STEP_COUNTER,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_ON_CHANGE_MODE,
{ NULL, NULL }
},
{
"Significant motion",
"Google",
kVersion,
COMMS_SENSOR_SIGNIFICANT_MOTION,
SENSOR_TYPE_SIGNIFICANT_MOTION,
1.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
-1, // minDelay
0, // XXX fifoReservedEventCount
0, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_SIGNIFICANT_MOTION,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_WAKE_UP | SENSOR_FLAG_ONE_SHOT_MODE,
{ NULL, NULL }
},
{
"Gravity",
"Google",
kVersion,
COMMS_SENSOR_GRAVITY,
SENSOR_TYPE_GRAVITY,
1000.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzOrientation), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_GRAVITY,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzOrientation), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE,
{ NULL, NULL }
},
{
"Linear Acceleration",
"Google",
kVersion,
COMMS_SENSOR_LINEAR_ACCEL,
SENSOR_TYPE_LINEAR_ACCELERATION,
1000.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzOrientation), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_LINEAR_ACCELERATION,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzOrientation), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE,
{ NULL, NULL }
},
{
"Rotation Vector",
"Google",
kVersion,
COMMS_SENSOR_ROTATION_VECTOR,
SENSOR_TYPE_ROTATION_VECTOR,
1000.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzOrientation), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_ROTATION_VECTOR,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzOrientation), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE,
{ NULL, NULL }
},
{
"Geomagnetic Rotation Vector",
"Google",
kVersion,
COMMS_SENSOR_GEO_MAG,
SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR,
1000.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzOrientation), // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_GEOMAGNETIC_ROTATION_VECTOR,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzOrientation), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE,
{ NULL, NULL }
},
{
"Game Rotation Vector",
"Google",
kVersion,
COMMS_SENSOR_GAME_ROTATION_VECTOR,
SENSOR_TYPE_GAME_ROTATION_VECTOR,
1000.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzOrientation), // minDelay
300, // XXX fifoReservedEventCount
kMaxThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_GAME_ROTATION_VECTOR,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzOrientation), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE,
{ NULL, NULL }
},
{
"Tilt Detector",
"Google",
kVersion,
COMMS_SENSOR_TILT,
SENSOR_TYPE_TILT_DETECTOR,
1.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
0, // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_TILT_DETECTOR,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_WAKE_UP | SENSOR_FLAG_SPECIAL_REPORTING_MODE,
{ NULL, NULL }
},
{
"Pickup Gesture",
"Google",
kVersion,
COMMS_SENSOR_GESTURE,
SENSOR_TYPE_PICK_UP_GESTURE,
1.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
-1, // minDelay
0, // XXX fifoReservedEventCount
0, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_PICK_UP_GESTURE,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_WAKE_UP | SENSOR_FLAG_ONE_SHOT_MODE,
{ NULL, NULL }
},
{
"Sensors Sync",
"Google",
kVersion,
COMMS_SENSOR_SYNC,
SENSOR_TYPE_SYNC,
1.0f, // maxRange
1.0f, // XXX resolution
0.1f, // XXX power
0, // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_SYNC,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_SPECIAL_REPORTING_MODE,
{ NULL, NULL }
},
{
"Double Twist",
"Google",
kVersion,
COMMS_SENSOR_DOUBLE_TWIST,
SENSOR_TYPE_DOUBLE_TWIST,
1.0f, // maxRange
1.0f, // XXX resolution
0.1f, // XXX power
0, // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_DOUBLE_TWIST,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_WAKE_UP | SENSOR_FLAG_SPECIAL_REPORTING_MODE,
{ NULL, NULL }
},
{
"Double Tap",
"Google",
kVersion,
COMMS_SENSOR_DOUBLE_TAP,
SENSOR_TYPE_DOUBLE_TAP,
1.0f, // maxRange
1.0f, // XXX resolution
0.1f, // XXX power
0, // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_DOUBLE_TAP,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_SPECIAL_REPORTING_MODE,
{ NULL, NULL }
},
{
"Device Orientation",
"Google",
kVersion,
COMMS_SENSOR_WINDOW_ORIENTATION,
SENSOR_TYPE_DEVICE_ORIENTATION,
3.0f, // maxRange
1.0f, // XXX resolution
0.1f, // XXX power
0, // minDelay
kMinFifoReservedEventCount, // XXX fifoReservedEventCount
kMaxOneAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_DEVICE_ORIENTATION,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_ON_CHANGE_MODE,
{ NULL, NULL }
},
{
"Double Touch",
"Google",
kVersion,
COMMS_SENSOR_DOUBLE_TOUCH,
SENSOR_TYPE_DOUBLE_TOUCH,
1.0f, // maxRange
1.0f, // XXX resolution
0.0f, // XXX power
-1, // minDelay
0, // XXX fifoReservedEventCount
0, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_DOUBLE_TOUCH,
"", // requiredPermission
0, // maxDelay
SENSOR_FLAG_WAKE_UP | SENSOR_FLAG_ONE_SHOT_MODE,
{ NULL, NULL }
},
{
"BMI160 accelerometer (uncalibrated)",
"Bosch",
kVersion,
COMMS_SENSOR_ACCEL_UNCALIBRATED,
SENSOR_TYPE_ACCELEROMETER_UNCALIBRATED,
GRAVITY_EARTH * kAccelRangeG, // maxRange
GRAVITY_EARTH * kAccelRangeG / 32768.0f, // resolution
0.0f, // XXX power
(int32_t)(1.0E6f / kMaxSampleRateHzAccel), // minDelay
3000, // XXX fifoReservedEventCount
kMaxRawThreeAxisEventCount, // XXX fifoMaxEventCount
SENSOR_STRING_TYPE_ACCELEROMETER_UNCALIBRATED,
"", // requiredPermission
(long)(1.0E6f / kMinSampleRateHzAccel), // maxDelay
SENSOR_FLAG_CONTINUOUS_MODE | kDirectReportFlagAccel,
{ NULL, NULL }
},
};
extern const size_t kSensorCount = sizeof(kSensorList) / sizeof(sensor_t);

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sensors/Android.mk
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# Copyright (C) 2009 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.
ifeq ($(BOARD_USES_EXYNOS_SENSORS_DUMMY), true)
LOCAL_PATH := $(call my-dir)
# HAL module implemenation stored in
# hw/<SENSORS_HARDWARE_MODULE_ID>.<ro.hardware>.so
include $(CLEAR_VARS)
LOCAL_MODULE_RELATIVE_PATH := hw
LOCAL_SHARED_LIBRARIES := liblog libcutils libhardware
LOCAL_SRC_FILES := sensors_dummy.c
LOCAL_MODULE := sensors.zuma
LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
LOCAL_LICENSE_CONDITIONS := notice
LOCAL_NOTICE_FILE := $(LOCAL_PATH)/../NOTICE
LOCAL_PROPRIETARY_MODULE := true
include $(BUILD_SHARED_LIBRARY)
endif

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sensors/sensors_dummy.c
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/*
* Copyright (C) 2009 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.
*/
/* this implements a sensors hardware library for the Android emulator.
* the following code should be built as a shared library that will be
* placed into /system/lib/hw/sensors.goldfish.so
*
* it will be loaded by the code in hardware/libhardware/hardware.c
* which is itself called from com_android_server_SensorService.cpp
*/
#define SENSORS_SERVICE_NAME "sensors"
#define LOG_TAG "Dummy_Sensors"
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <log/log.h>
#include <cutils/sockets.h>
#include <hardware/sensors.h>
#include <pthread.h>
#if 0
#define D(...) ALOGD(__VA_ARGS__)
#else
#define D(...) ((void)0)
#endif
#define E(...) ALOGE(__VA_ARGS__)
/** SENSOR IDS AND NAMES
**/
#define MAX_NUM_SENSORS 8
#define SUPPORTED_SENSORS ((1<<MAX_NUM_SENSORS)-1)
#define ID_BASE SENSORS_HANDLE_BASE
#define ID_ACCELERATION (ID_BASE+0)
#define ID_MAGNETIC_FIELD (ID_BASE+1)
#define ID_ORIENTATION (ID_BASE+2)
#define ID_TEMPERATURE (ID_BASE+3)
#define ID_PROXIMITY (ID_BASE+4)
#define ID_LIGHT (ID_BASE+5)
#define ID_PRESSURE (ID_BASE+6)
#define ID_HUMIDITY (ID_BASE+7)
#define SENSORS_ACCELERATION (1 << ID_ACCELERATION)
#define SENSORS_MAGNETIC_FIELD (1 << ID_MAGNETIC_FIELD)
#define SENSORS_ORIENTATION (1 << ID_ORIENTATION)
#define SENSORS_TEMPERATURE (1 << ID_TEMPERATURE)
#define SENSORS_PROXIMITY (1 << ID_PROXIMITY)
#define SENSORS_LIGHT (1 << ID_LIGHT)
#define SENSORS_PRESSURE (1 << ID_PRESSURE)
#define SENSORS_HUMIDITY (1 << ID_HUMIDITY)
#define ID_CHECK(x) ((unsigned)((x) - ID_BASE) < MAX_NUM_SENSORS)
#define SENSORS_LIST \
SENSOR_(ACCELERATION,"acceleration") \
SENSOR_(MAGNETIC_FIELD,"magnetic-field") \
SENSOR_(ORIENTATION,"orientation") \
SENSOR_(TEMPERATURE,"temperature") \
SENSOR_(PROXIMITY,"proximity") \
SENSOR_(LIGHT, "light") \
SENSOR_(PRESSURE, "pressure") \
SENSOR_(HUMIDITY, "humidity")
static const struct {
const char* name;
int id; } _sensorIds[MAX_NUM_SENSORS] =
{
#define SENSOR_(x,y) { y, ID_##x },
SENSORS_LIST
#undef SENSOR_
};
static const char*
_sensorIdToName( int id )
{
int nn;
for (nn = 0; nn < MAX_NUM_SENSORS; nn++)
if (id == _sensorIds[nn].id)
return _sensorIds[nn].name;
return "<UNKNOWN>";
}
static int
_sensorIdFromName( const char* name )
{
int nn;
if (name == NULL)
return -1;
for (nn = 0; nn < MAX_NUM_SENSORS; nn++)
if (!strcmp(name, _sensorIds[nn].name))
return _sensorIds[nn].id;
return -1;
}
/* return the current time in nanoseconds */
static int64_t now_ns(void) {
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return (int64_t)ts.tv_sec * 1000000000 + ts.tv_nsec;
}
/** SENSORS POLL DEVICE
**
** This one is used to read sensor data from the hardware.
** We implement this by simply reading the data from the
** emulator through the QEMUD channel.
**/
typedef struct SensorDevice {
struct sensors_poll_device_1 device;
sensors_event_t sensors[MAX_NUM_SENSORS];
uint32_t pendingSensors;
int64_t timeStart;
int64_t timeOffset;
uint32_t active_sensors;
int fd;
pthread_mutex_t lock;
} SensorDevice;
/* Grab the file descriptor to the emulator's sensors service pipe.
* This function returns a file descriptor on success, or -errno on
* failure, and assumes the SensorDevice instance's lock is held.
*
* This is needed because set_delay(), poll() and activate() can be called
* from different threads, and poll() is blocking.
*
* 1) On a first thread, de-activate() all sensors first, then call poll(),
* which results in the thread blocking.
*
* 2) On a second thread, slightly later, call set_delay() then activate()
* to enable the acceleration sensor.
*
* The system expects this to unblock the first thread which will receive
* new sensor events after the activate() call in 2).
*
* This cannot work if both threads don't use the same connection.
*
* TODO(digit): This protocol is brittle, implement another control channel
* for set_delay()/activate()/batch() when supporting HAL 1.3
*/
static int sensor_device_get_fd_locked(SensorDevice* dev) {
/* Create connection to service on first call */
if (dev->fd < 0) {
int ret = -errno;
E("%s: Could not open connection to service: %s", __FUNCTION__,
strerror(-ret));
return ret;
}
return dev->fd;
}
/* Pick up one pending sensor event. On success, this returns the sensor
* id, and sets |*event| accordingly. On failure, i.e. if there are no
* pending events, return -EINVAL.
*
* Note: The device's lock must be acquired.
*/
static int sensor_device_pick_pending_event_locked(SensorDevice* d,
sensors_event_t* event)
{
uint32_t mask = SUPPORTED_SENSORS & d->pendingSensors;
if (mask) {
uint32_t i = 31 - __builtin_clz(mask);
pthread_mutex_lock(&d->lock);
d->pendingSensors &= ~(1U << i);
*event = d->sensors[i];
event->sensor = i;
event->version = sizeof(*event);
pthread_mutex_unlock(&d->lock);
D("%s: %d [%f, %f, %f]", __FUNCTION__,
i,
event->data[0],
event->data[1],
event->data[2]);
return i;
}
E("No sensor to return!!! pendingSensors=0x%08x", d->pendingSensors);
// we may end-up in a busy loop, slow things down, just in case.
usleep(1000);
return -EINVAL;
}
static int sensor_device_close(struct hw_device_t* dev0)
{
SensorDevice* dev = (void*)dev0;
// Assume that there are no other threads blocked on poll()
if (dev->fd >= 0) {
close(dev->fd);
dev->fd = -1;
}
pthread_mutex_destroy(&dev->lock);
free(dev);
return 0;
}
/* Return an array of sensor data. This function blocks until there is sensor
* related events to report. On success, it will write the events into the
* |data| array, which contains |count| items. The function returns the number
* of events written into the array, which shall never be greater than |count|.
* On error, return -errno code.
*
* Note that according to the sensor HAL [1], it shall never return 0!
*
* [1] http://source.android.com/devices/sensors/hal-interface.html
*/
static int sensor_device_poll(struct sensors_poll_device_t *dev0,
sensors_event_t* data, int count)
{
return -EIO;
}
static int sensor_device_activate(struct sensors_poll_device_t *dev0,
int handle,
int enabled)
{
SensorDevice* dev = (void*)dev0;
D("%s: handle=%s (%d) enabled=%d", __FUNCTION__,
_sensorIdToName(handle), handle, enabled);
/* Sanity check */
if (!ID_CHECK(handle)) {
E("%s: bad handle ID", __FUNCTION__);
return -EINVAL;
}
/* Exit early if sensor is already enabled/disabled. */
uint32_t mask = (1U << handle);
uint32_t sensors = enabled ? mask : 0;
pthread_mutex_lock(&dev->lock);
uint32_t active = dev->active_sensors;
uint32_t new_sensors = (active & ~mask) | (sensors & mask);
uint32_t changed = active ^ new_sensors;
if (changed)
dev->active_sensors = new_sensors;
pthread_mutex_unlock(&dev->lock);
return 0;
}
static int sensor_device_default_flush(
struct sensors_poll_device_1* dev0,
int handle) {
SensorDevice* dev = (void*)dev0;
D("%s: handle=%s (%d)", __FUNCTION__,
_sensorIdToName(handle), handle);
/* Sanity check */
if (!ID_CHECK(handle)) {
E("%s: bad handle ID", __FUNCTION__);
return -EINVAL;
}
pthread_mutex_lock(&dev->lock);
dev->sensors[handle].version = META_DATA_VERSION;
dev->sensors[handle].type = SENSOR_TYPE_META_DATA;
dev->sensors[handle].sensor = 0;
dev->sensors[handle].timestamp = 0;
dev->sensors[handle].meta_data.what = META_DATA_FLUSH_COMPLETE;
dev->pendingSensors |= (1U << handle);
pthread_mutex_unlock(&dev->lock);
return 0;
}
static int sensor_device_set_delay(struct sensors_poll_device_t *dev0,
int handle __unused,
int64_t ns)
{
return 0;
}
static int sensor_device_default_batch(
struct sensors_poll_device_1* dev,
int sensor_handle,
int flags,
int64_t sampling_period_ns,
int64_t max_report_latency_ns) {
return sensor_device_set_delay(dev, sensor_handle, sampling_period_ns);
}
/** MODULE REGISTRATION SUPPORT
**
** This is required so that hardware/libhardware/hardware.c
** will dlopen() this library appropriately.
**/
/*
* the following is the list of all supported sensors.
* this table is used to build sSensorList declared below
* according to which hardware sensors are reported as
* available from the emulator (see get_sensors_list below)
*
* note: numerical values for maxRange/resolution/power for
* all sensors but light, pressure and humidity were
* taken from the reference AK8976A implementation
*/
static const struct sensor_t sSensorListInit[] = {
{ .name = "Accelerometer",
.vendor = "The Android Open Source Project",
.version = 1,
.handle = ID_ACCELERATION,
.type = SENSOR_TYPE_ACCELEROMETER,
.maxRange = 2.8f,
.resolution = 1.0f/4032.0f,
.power = 3.0f,
.minDelay = 10000,
.maxDelay = 60 * 1000 * 1000,
.fifoReservedEventCount = 0,
.fifoMaxEventCount = 0,
.stringType = 0,
.requiredPermission = 0,
.flags = SENSOR_FLAG_CONTINUOUS_MODE,
.reserved = {}
},
};
static struct sensor_t sSensorList[1];
static int sensors__get_sensors_list(struct sensors_module_t* module __unused,
struct sensor_t const** list)
{
*list = sSensorList;
return 0;
}
static int
open_sensors(const struct hw_module_t* module,
const char* name,
struct hw_device_t* *device)
{
int status = -EINVAL;
D("%s: name=%s", __FUNCTION__, name);
if (!strcmp(name, SENSORS_HARDWARE_POLL)) {
SensorDevice *dev = malloc(sizeof(*dev));
memset(dev, 0, sizeof(*dev));
dev->device.common.tag = HARDWARE_DEVICE_TAG;
dev->device.common.version = SENSORS_DEVICE_API_VERSION_1_3;
dev->device.common.module = (struct hw_module_t*) module;
dev->device.common.close = sensor_device_close;
dev->device.poll = sensor_device_poll;
dev->device.activate = sensor_device_activate;
dev->device.setDelay = sensor_device_set_delay;
// Version 1.3-specific functions
dev->device.batch = sensor_device_default_batch;
dev->device.flush = sensor_device_default_flush;
dev->fd = -1;
pthread_mutex_init(&dev->lock, NULL);
*device = &dev->device.common;
status = 0;
}
return status;
}
static struct hw_module_methods_t sensors_module_methods = {
.open = open_sensors
};
struct sensors_module_t HAL_MODULE_INFO_SYM = {
.common = {
.tag = HARDWARE_MODULE_TAG,
.version_major = 1,
.version_minor = 0,
.id = SENSORS_HARDWARE_MODULE_ID,
.name = "Dummy SENSORS Module",
.author = "The Android Open Source Project",
.methods = &sensors_module_methods,
},
.get_sensors_list = sensors__get_sensors_list
};