diff options
author | Sebastian Mauer <sebastian@n-unity.de> | 2011-11-30 00:49:33 +0100 |
---|---|---|
committer | Sebastian Mauer <sebastian@n-unity.de> | 2011-11-30 00:49:33 +0100 |
commit | c550d7563a5c51040d5d7f91e23b9fa4baa69d8a (patch) | |
tree | 3254526daf435e420e703889fe39b05981a72c49 /libsensors | |
download | device_samsung_n7000-c550d7563a5c51040d5d7f91e23b9fa4baa69d8a.zip device_samsung_n7000-c550d7563a5c51040d5d7f91e23b9fa4baa69d8a.tar.gz device_samsung_n7000-c550d7563a5c51040d5d7f91e23b9fa4baa69d8a.tar.bz2 |
Initial import
Diffstat (limited to 'libsensors')
-rwxr-xr-x | libsensors/AkmSensor.cpp | 310 | ||||
-rwxr-xr-x | libsensors/AkmSensor.h | 62 | ||||
-rwxr-xr-x | libsensors/Android.mk | 45 | ||||
-rwxr-xr-x | libsensors/GyroSensor.cpp | 185 | ||||
-rwxr-xr-x | libsensors/GyroSensor.h | 55 | ||||
-rwxr-xr-x | libsensors/InputEventReader.cpp | 88 | ||||
-rwxr-xr-x | libsensors/InputEventReader.h | 47 | ||||
-rwxr-xr-x | libsensors/LightSensor.cpp | 160 | ||||
-rwxr-xr-x | libsensors/LightSensor.h | 55 | ||||
-rwxr-xr-x | libsensors/MODULE_LICENSE_APACHE2 | 0 | ||||
-rwxr-xr-x | libsensors/ProximitySensor.cpp | 143 | ||||
-rwxr-xr-x | libsensors/ProximitySensor.h | 54 | ||||
-rwxr-xr-x | libsensors/SensorBase.cpp | 128 | ||||
-rwxr-xr-x | libsensors/SensorBase.h | 65 | ||||
-rwxr-xr-x | libsensors/ak8973b.h | 51 | ||||
-rwxr-xr-x | libsensors/sensors.cpp | 326 | ||||
-rwxr-xr-x | libsensors/sensors.h | 144 |
17 files changed, 1918 insertions, 0 deletions
diff --git a/libsensors/AkmSensor.cpp b/libsensors/AkmSensor.cpp new file mode 100755 index 0000000..c147bd6 --- /dev/null +++ b/libsensors/AkmSensor.cpp @@ -0,0 +1,310 @@ +/* + * Copyright (C) 2008 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 <fcntl.h> +#include <errno.h> +#include <math.h> +#include <poll.h> +#include <unistd.h> +#include <dirent.h> +#include <sys/select.h> +#include <dlfcn.h> + +#include "ak8973b.h" + +#include <cutils/log.h> +#include "AkmSensor.h" + +//#define LOG_NDEBUG 0 + +/*****************************************************************************/ + +int (*akm_is_sensor_enabled)(uint32_t sensor_type); +int (*akm_enable_sensor)(uint32_t sensor_type); +int (*akm_disable_sensor)(uint32_t sensor_type); +int (*akm_set_delay)(uint32_t sensor_type, uint64_t delay); + +int stub_is_sensor_enabled(uint32_t sensor_type) { + return 0; +} + +int stub_enable_disable_sensor(uint32_t sensor_type) { + return -ENODEV; +} + +int stub_set_delay(uint32_t sensor_type, uint64_t delay) { + return -ENODEV; +} + +AkmSensor::AkmSensor() +: SensorBase(NULL, NULL), + mEnabled(0), + mPendingMask(0), + mInputReader(32) +{ + /* Open the library before opening the input device. The library + * creates a uinput device. + */ + if (loadAKMLibrary() == 0) { + data_name = "compass_sensor"; + data_fd = openInput("compass_sensor"); + } + + memset(mPendingEvents, 0, sizeof(mPendingEvents)); + + mPendingEvents[Accelerometer].version = sizeof(sensors_event_t); + mPendingEvents[Accelerometer].sensor = ID_A; + mPendingEvents[Accelerometer].type = SENSOR_TYPE_ACCELEROMETER; + mPendingEvents[Accelerometer].acceleration.status = SENSOR_STATUS_ACCURACY_HIGH; + + mPendingEvents[MagneticField].version = sizeof(sensors_event_t); + mPendingEvents[MagneticField].sensor = ID_M; + mPendingEvents[MagneticField].type = SENSOR_TYPE_MAGNETIC_FIELD; + mPendingEvents[MagneticField].magnetic.status = SENSOR_STATUS_ACCURACY_HIGH; + + mPendingEvents[Orientation ].version = sizeof(sensors_event_t); + mPendingEvents[Orientation ].sensor = ID_O; + mPendingEvents[Orientation ].type = SENSOR_TYPE_ORIENTATION; + mPendingEvents[Orientation ].orientation.status = SENSOR_STATUS_ACCURACY_HIGH; + + // read the actual value of all sensors if they're enabled already + struct input_absinfo absinfo; + short flags = 0; + + if (akm_is_sensor_enabled(SENSOR_TYPE_ACCELEROMETER)) { + mEnabled |= 1<<Accelerometer; + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_ACCEL_X), &absinfo)) { + mPendingEvents[Accelerometer].acceleration.x = absinfo.value * CONVERT_A_X; + } + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_ACCEL_Y), &absinfo)) { + mPendingEvents[Accelerometer].acceleration.y = absinfo.value * CONVERT_A_Y; + } + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_ACCEL_Z), &absinfo)) { + mPendingEvents[Accelerometer].acceleration.z = absinfo.value * CONVERT_A_Z; + } + } + if (akm_is_sensor_enabled(SENSOR_TYPE_MAGNETIC_FIELD)) { + mEnabled |= 1<<MagneticField; + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_MAGV_X), &absinfo)) { + mPendingEvents[MagneticField].magnetic.x = absinfo.value * CONVERT_M_X; + } + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_MAGV_Y), &absinfo)) { + mPendingEvents[MagneticField].magnetic.y = absinfo.value * CONVERT_M_Y; + } + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_MAGV_Z), &absinfo)) { + mPendingEvents[MagneticField].magnetic.z = absinfo.value * CONVERT_M_Z; + } + } + if (akm_is_sensor_enabled(SENSOR_TYPE_ORIENTATION)) { + mEnabled |= 1<<Orientation; + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_YAW), &absinfo)) { + mPendingEvents[Orientation].orientation.azimuth = absinfo.value; + } + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_PITCH), &absinfo)) { + mPendingEvents[Orientation].orientation.pitch = absinfo.value; + } + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_ROLL), &absinfo)) { + mPendingEvents[Orientation].orientation.roll = -absinfo.value; + } + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_ORIENT_STATUS), &absinfo)) { + mPendingEvents[Orientation].orientation.status = uint8_t(absinfo.value & SENSOR_STATE_MASK); + } + } + + // disable temperature sensor, since it is not supported + akm_disable_sensor(SENSOR_TYPE_TEMPERATURE); +} + +AkmSensor::~AkmSensor() +{ + if (mLibAKM) { + unsigned ref = ::dlclose(mLibAKM); + } +} + +int AkmSensor::enable(int32_t handle, int en) +{ + int what = -1; + + switch (handle) { + case ID_A: what = Accelerometer; break; + case ID_M: what = MagneticField; break; + case ID_O: what = Orientation; break; + } + + if (uint32_t(what) >= numSensors) + return -EINVAL; + + int newState = en ? 1 : 0; + int err = 0; + + if ((uint32_t(newState)<<what) != (mEnabled & (1<<what))) { + uint32_t sensor_type; + switch (what) { + case Accelerometer: sensor_type = SENSOR_TYPE_ACCELEROMETER; break; + case MagneticField: sensor_type = SENSOR_TYPE_MAGNETIC_FIELD; break; + case Orientation: sensor_type = SENSOR_TYPE_ORIENTATION; break; + } + short flags = newState; + if (en) + err = akm_enable_sensor(sensor_type); + else + err = akm_disable_sensor(sensor_type); + + LOGE_IF(err, "Could not change sensor state (%s)", strerror(-err)); + if (!err) { + mEnabled &= ~(1<<what); + mEnabled |= (uint32_t(flags)<<what); + } + } + return err; +} + +int AkmSensor::setDelay(int32_t handle, int64_t ns) +{ + uint32_t sensor_type = 0; + + if (ns < 0) + return -EINVAL; + + switch (handle) { + case ID_A: sensor_type = SENSOR_TYPE_ACCELEROMETER; break; + case ID_M: sensor_type = SENSOR_TYPE_MAGNETIC_FIELD; break; + case ID_O: sensor_type = SENSOR_TYPE_ORIENTATION; break; + } + + if (sensor_type == 0) + return -EINVAL; + + return akm_set_delay(sensor_type, ns); +} + +int AkmSensor::loadAKMLibrary() +{ + mLibAKM = dlopen("libakm.so", RTLD_NOW); + + if (!mLibAKM) { + akm_is_sensor_enabled = stub_is_sensor_enabled; + akm_enable_sensor = stub_enable_disable_sensor; + akm_disable_sensor = stub_enable_disable_sensor; + akm_set_delay = stub_set_delay; + LOGE("AkmSensor: unable to load AKM Library, %s", dlerror()); + return -ENOENT; + } + + *(void **)&akm_is_sensor_enabled = dlsym(mLibAKM, "akm_is_sensor_enabled"); + *(void **)&akm_enable_sensor = dlsym(mLibAKM, "akm_enable_sensor"); + *(void **)&akm_disable_sensor = dlsym(mLibAKM, "akm_disable_sensor"); + *(void **)&akm_set_delay = dlsym(mLibAKM, "akm_set_delay"); + + return 0; +} + +int AkmSensor::readEvents(sensors_event_t* data, int count) +{ + if (count < 1) + return -EINVAL; + + ssize_t n = mInputReader.fill(data_fd); + if (n < 0) + return n; + + int numEventReceived = 0; + input_event const* event; + + while (count && mInputReader.readEvent(&event)) { + int type = event->type; + if (type == EV_REL) { + processEvent(event->code, event->value); + mInputReader.next(); + } else if (type == EV_SYN) { + int64_t time = timevalToNano(event->time); + for (int j=0 ; count && mPendingMask && j<numSensors ; j++) { + if (mPendingMask & (1<<j)) { + mPendingMask &= ~(1<<j); + mPendingEvents[j].timestamp = time; + if (mEnabled & (1<<j)) { + *data++ = mPendingEvents[j]; + count--; + numEventReceived++; + } + } + } + if (!mPendingMask) { + mInputReader.next(); + } + } else { + LOGE("AkmSensor: unknown event (type=%d, code=%d)", + type, event->code); + mInputReader.next(); + } + } + return numEventReceived; +} + +void AkmSensor::processEvent(int code, int value) +{ + switch (code) { + case EVENT_TYPE_ACCEL_X: + mPendingMask |= 1<<Accelerometer; + mPendingEvents[Accelerometer].acceleration.x = value * CONVERT_A_X; + break; + case EVENT_TYPE_ACCEL_Y: + mPendingMask |= 1<<Accelerometer; + mPendingEvents[Accelerometer].acceleration.y = value * CONVERT_A_Y; + break; + case EVENT_TYPE_ACCEL_Z: + mPendingMask |= 1<<Accelerometer; + mPendingEvents[Accelerometer].acceleration.z = value * CONVERT_A_Z; + break; + + case EVENT_TYPE_MAGV_X: + LOGV("AkmSensor: EVENT_TYPE_MAGV_X value =%d", value); + mPendingMask |= 1<<MagneticField; + mPendingEvents[MagneticField].magnetic.x = value * CONVERT_M_X; + break; + case EVENT_TYPE_MAGV_Y: + LOGV("AkmSensor: EVENT_TYPE_MAGV_Y value =%d", value); + mPendingMask |= 1<<MagneticField; + mPendingEvents[MagneticField].magnetic.y = value * CONVERT_M_Y; + break; + case EVENT_TYPE_MAGV_Z: + LOGV("AkmSensor: EVENT_TYPE_MAGV_Z value =%d", value); + mPendingMask |= 1<<MagneticField; + mPendingEvents[MagneticField].magnetic.z = value * CONVERT_M_Z; + break; + + case EVENT_TYPE_YAW: + mPendingMask |= 1<<Orientation; + mPendingEvents[Orientation].orientation.azimuth = value * CONVERT_O_A; + break; + case EVENT_TYPE_PITCH: + mPendingMask |= 1<<Orientation; + mPendingEvents[Orientation].orientation.pitch = value * CONVERT_O_P; + break; + case EVENT_TYPE_ROLL: + mPendingMask |= 1<<Orientation; + mPendingEvents[Orientation].orientation.roll = value * CONVERT_O_R; + break; + case EVENT_TYPE_ORIENT_STATUS: + uint8_t status = uint8_t(value & SENSOR_STATE_MASK); + if (status == 4) + status = 0; + mPendingMask |= 1<<Orientation; + mPendingEvents[Orientation].orientation.status = status; + break; + } +} diff --git a/libsensors/AkmSensor.h b/libsensors/AkmSensor.h new file mode 100755 index 0000000..44214e0 --- /dev/null +++ b/libsensors/AkmSensor.h @@ -0,0 +1,62 @@ +/* + * Copyright (C) 2008 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. + */ + +#ifndef ANDROID_AKM_SENSOR_H +#define ANDROID_AKM_SENSOR_H + +#include <stdint.h> +#include <errno.h> +#include <sys/cdefs.h> +#include <sys/types.h> + + +#include "sensors.h" +#include "SensorBase.h" +#include "InputEventReader.h" + +/*****************************************************************************/ + +struct input_event; + +class AkmSensor : public SensorBase { +public: + AkmSensor(); + virtual ~AkmSensor(); + + enum { + Accelerometer = 0, + MagneticField = 1, + Orientation = 2, + numSensors + }; + + virtual int setDelay(int32_t handle, int64_t ns); + virtual int enable(int32_t handle, int enabled); + virtual int readEvents(sensors_event_t* data, int count); + void processEvent(int code, int value); + +private: + int loadAKMLibrary(); + void *mLibAKM; + uint32_t mEnabled; + uint32_t mPendingMask; + InputEventCircularReader mInputReader; + sensors_event_t mPendingEvents[numSensors]; +}; + +/*****************************************************************************/ + +#endif // ANDROID_AKM_SENSOR_H diff --git a/libsensors/Android.mk b/libsensors/Android.mk new file mode 100755 index 0000000..15c29a2 --- /dev/null +++ b/libsensors/Android.mk @@ -0,0 +1,45 @@ +# Copyright (C) 2008 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. + + +LOCAL_PATH := $(call my-dir) + +ifneq ($(TARGET_SIMULATOR),true) + +# HAL module implemenation, not prelinked, and stored in +# hw/<SENSORS_HARDWARE_MODULE_ID>.<ro.product.board>.so +include $(CLEAR_VARS) + +LOCAL_MODULE := sensors.$(TARGET_BOARD_PLATFORM) + +LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw + +LOCAL_MODULE_TAGS := optional + +LOCAL_CFLAGS := -DLOG_TAG=\"Sensors\" +LOCAL_SRC_FILES := \ + sensors.cpp \ + SensorBase.cpp \ + LightSensor.cpp \ + ProximitySensor.cpp \ + AkmSensor.cpp \ + GyroSensor.cpp \ + InputEventReader.cpp + +LOCAL_SHARED_LIBRARIES := liblog libcutils libdl +LOCAL_PRELINK_MODULE := false + +include $(BUILD_SHARED_LIBRARY) + +endif # !TARGET_SIMULATOR diff --git a/libsensors/GyroSensor.cpp b/libsensors/GyroSensor.cpp new file mode 100755 index 0000000..ef0c01c --- /dev/null +++ b/libsensors/GyroSensor.cpp @@ -0,0 +1,185 @@ +/* + * Copyright (C) 2008 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 <fcntl.h> +#include <errno.h> +#include <math.h> +#include <poll.h> +#include <unistd.h> +#include <dirent.h> +#include <sys/select.h> +#include <cutils/log.h> + +#include "GyroSensor.h" + +#define FETCH_FULL_EVENT_BEFORE_RETURN 1 +#define IGNORE_EVENT_TIME 350000000 +/*****************************************************************************/ + +GyroSensor::GyroSensor() + : SensorBase(NULL, "gyro_sensor"), + mEnabled(0), + mInputReader(4), + mHasPendingEvent(false), + mEnabledTime(0) +{ + mPendingEvent.version = sizeof(sensors_event_t); + mPendingEvent.sensor = ID_GY; + mPendingEvent.type = SENSOR_TYPE_GYROSCOPE; + memset(mPendingEvent.data, 0, sizeof(mPendingEvent.data)); + + if (data_fd) { + strcpy(input_sysfs_path, "/sys/class/input/"); + strcat(input_sysfs_path, input_name); + strcat(input_sysfs_path, "/device/"); + input_sysfs_path_len = strlen(input_sysfs_path); + enable(0, 1); + } +} + +GyroSensor::~GyroSensor() { + if (mEnabled) { + enable(0, 0); + } +} + +int GyroSensor::setInitialState() { + struct input_absinfo absinfo_x; + struct input_absinfo absinfo_y; + struct input_absinfo absinfo_z; + float value; + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_GYRO_X), &absinfo_x) && + !ioctl(data_fd, EVIOCGABS(EVENT_TYPE_GYRO_X), &absinfo_y) && + !ioctl(data_fd, EVIOCGABS(EVENT_TYPE_GYRO_X), &absinfo_z)) { + value = absinfo_x.value; + mPendingEvent.data[0] = value * CONVERT_GYRO_X; + value = absinfo_x.value; + mPendingEvent.data[1] = value * CONVERT_GYRO_Y; + value = absinfo_x.value; + mPendingEvent.data[2] = value * CONVERT_GYRO_Z; + mHasPendingEvent = true; + } + return 0; +} + +int GyroSensor::enable(int32_t, int en) { + int flags = en ? 1 : 0; + if (flags != mEnabled) { + int fd; + strcpy(&input_sysfs_path[input_sysfs_path_len], "enable"); + fd = open(input_sysfs_path, O_RDWR); + if (fd >= 0) { + char buf[2]; + int err; + buf[1] = 0; + if (flags) { + buf[0] = '1'; + mEnabledTime = getTimestamp() + IGNORE_EVENT_TIME; + } else { + buf[0] = '0'; + } + err = write(fd, buf, sizeof(buf)); + close(fd); + mEnabled = flags; + setInitialState(); + return 0; + } + return -1; + } + return 0; +} + +bool GyroSensor::hasPendingEvents() const { + return mHasPendingEvent; +} + +int GyroSensor::setDelay(int32_t handle, int64_t delay_ns) +{ + int fd; + strcpy(&input_sysfs_path[input_sysfs_path_len], "poll_delay"); + fd = open(input_sysfs_path, O_RDWR); + if (fd >= 0) { + char buf[80]; + sprintf(buf, "%lld", delay_ns); + write(fd, buf, strlen(buf)+1); + close(fd); + return 0; + } + return -1; +} + +int GyroSensor::readEvents(sensors_event_t* data, int count) +{ + if (count < 1) + return -EINVAL; + + if (mHasPendingEvent) { + mHasPendingEvent = false; + mPendingEvent.timestamp = getTimestamp(); + *data = mPendingEvent; + return mEnabled ? 1 : 0; + } + + ssize_t n = mInputReader.fill(data_fd); + if (n < 0) + return n; + + int numEventReceived = 0; + input_event const* event; + +#if FETCH_FULL_EVENT_BEFORE_RETURN +again: +#endif + while (count && mInputReader.readEvent(&event)) { + int type = event->type; + if (type == EV_REL) { + float value = event->value; + if (event->code == EVENT_TYPE_GYRO_X) { + mPendingEvent.data[0] = value * CONVERT_GYRO_X; + } else if (event->code == EVENT_TYPE_GYRO_Y) { + mPendingEvent.data[1] = value * CONVERT_GYRO_Y; + } else if (event->code == EVENT_TYPE_GYRO_Z) { + mPendingEvent.data[2] = value * CONVERT_GYRO_Z; + } + } else if (type == EV_SYN) { + mPendingEvent.timestamp = timevalToNano(event->time); + if (mEnabled) { + if (mPendingEvent.timestamp >= mEnabledTime) { + *data++ = mPendingEvent; + numEventReceived++; + } + count--; + } + } else { + LOGE("GyroSensor: unknown event (type=%d, code=%d)", + type, event->code); + } + mInputReader.next(); + } + +#if FETCH_FULL_EVENT_BEFORE_RETURN + /* if we didn't read a complete event, see if we can fill and + try again instead of returning with nothing and redoing poll. */ + if (numEventReceived == 0 && mEnabled == 1) { + n = mInputReader.fill(data_fd); + if (n) + goto again; + } +#endif + + return numEventReceived; +} + diff --git a/libsensors/GyroSensor.h b/libsensors/GyroSensor.h new file mode 100755 index 0000000..e8997de --- /dev/null +++ b/libsensors/GyroSensor.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2008 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. + */ + +#ifndef ANDROID_GYRO_SENSOR_H +#define ANDROID_GYRO_SENSOR_H + +#include <stdint.h> +#include <errno.h> +#include <sys/cdefs.h> +#include <sys/types.h> + +#include "sensors.h" +#include "SensorBase.h" +#include "InputEventReader.h" + +/*****************************************************************************/ + +struct input_event; + +class GyroSensor : public SensorBase { + int mEnabled; + InputEventCircularReader mInputReader; + sensors_event_t mPendingEvent; + bool mHasPendingEvent; + char input_sysfs_path[PATH_MAX]; + int input_sysfs_path_len; + int64_t mEnabledTime; + + int setInitialState(); + +public: + GyroSensor(); + virtual ~GyroSensor(); + virtual int readEvents(sensors_event_t* data, int count); + virtual bool hasPendingEvents() const; + virtual int setDelay(int32_t handle, int64_t ns); + virtual int enable(int32_t handle, int enabled); +}; + +/*****************************************************************************/ + +#endif // ANDROID_GYRO_SENSOR_H diff --git a/libsensors/InputEventReader.cpp b/libsensors/InputEventReader.cpp new file mode 100755 index 0000000..1014f29 --- /dev/null +++ b/libsensors/InputEventReader.cpp @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2008 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 <stdint.h> +#include <errno.h> +#include <unistd.h> +#include <poll.h> + +#include <sys/cdefs.h> +#include <sys/types.h> + +#include <linux/input.h> + +#include <cutils/log.h> + +#include "InputEventReader.h" + +/*****************************************************************************/ + +struct input_event; + +InputEventCircularReader::InputEventCircularReader(size_t numEvents) + : mBuffer(new input_event[numEvents * 2]), + mBufferEnd(mBuffer + numEvents), + mHead(mBuffer), + mCurr(mBuffer), + mFreeSpace(numEvents) +{ +} + +InputEventCircularReader::~InputEventCircularReader() +{ + delete [] mBuffer; +} + +ssize_t InputEventCircularReader::fill(int fd) +{ + size_t numEventsRead = 0; + if (mFreeSpace) { + const ssize_t nread = read(fd, mHead, mFreeSpace * sizeof(input_event)); + if (nread<0 || nread % sizeof(input_event)) { + // we got a partial event!! + return nread<0 ? -errno : -EINVAL; + } + + numEventsRead = nread / sizeof(input_event); + if (numEventsRead) { + mHead += numEventsRead; + mFreeSpace -= numEventsRead; + if (mHead > mBufferEnd) { + size_t s = mHead - mBufferEnd; + memcpy(mBuffer, mBufferEnd, s * sizeof(input_event)); + mHead = mBuffer + s; + } + } + } + + return numEventsRead; +} + +ssize_t InputEventCircularReader::readEvent(input_event const** events) +{ + *events = mCurr; + ssize_t available = (mBufferEnd - mBuffer) - mFreeSpace; + return available ? 1 : 0; +} + +void InputEventCircularReader::next() +{ + mCurr++; + mFreeSpace++; + if (mCurr >= mBufferEnd) { + mCurr = mBuffer; + } +} diff --git a/libsensors/InputEventReader.h b/libsensors/InputEventReader.h new file mode 100755 index 0000000..180aade --- /dev/null +++ b/libsensors/InputEventReader.h @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2008 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. + */ + +#ifndef ANDROID_INPUT_EVENT_READER_H +#define ANDROID_INPUT_EVENT_READER_H + +#include <stdint.h> +#include <errno.h> +#include <sys/cdefs.h> +#include <sys/types.h> + +/*****************************************************************************/ + +struct input_event; + +class InputEventCircularReader +{ + struct input_event* const mBuffer; + struct input_event* const mBufferEnd; + struct input_event* mHead; + struct input_event* mCurr; + ssize_t mFreeSpace; + +public: + InputEventCircularReader(size_t numEvents); + ~InputEventCircularReader(); + ssize_t fill(int fd); + ssize_t readEvent(input_event const** events); + void next(); +}; + +/*****************************************************************************/ + +#endif // ANDROID_INPUT_EVENT_READER_H diff --git a/libsensors/LightSensor.cpp b/libsensors/LightSensor.cpp new file mode 100755 index 0000000..1d4f0e4 --- /dev/null +++ b/libsensors/LightSensor.cpp @@ -0,0 +1,160 @@ +/* + * Copyright (C) 2008 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 <fcntl.h> +#include <errno.h> +#include <math.h> +#include <poll.h> +#include <unistd.h> +#include <dirent.h> +#include <sys/select.h> + +#include <linux/lightsensor.h> + +#include <cutils/log.h> + +#include "LightSensor.h" + +// #define LOG_NDEBUG 0 + +/*****************************************************************************/ + +LightSensor::LightSensor() + : SensorBase(NULL, "light_sensor"), + mEnabled(0), + mInputReader(4), + mHasPendingEvent(false) +{ + mPendingEvent.version = sizeof(sensors_event_t); + mPendingEvent.sensor = ID_L; + mPendingEvent.type = SENSOR_TYPE_LIGHT; + memset(mPendingEvent.data, 0, sizeof(mPendingEvent.data)); + + if (data_fd) { + strcpy(input_sysfs_path, "/sys/class/input/"); + strcat(input_sysfs_path, input_name); + strcat(input_sysfs_path, "/device/"); + input_sysfs_path_len = strlen(input_sysfs_path); + enable(0, 1); + } +} + +LightSensor::~LightSensor() { + if (mEnabled) { + enable(0, 0); + } +} + +int LightSensor::setInitialState() { + struct input_absinfo absinfo; + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_LIGHT), &absinfo)) { + // make sure to report an event immediately + mHasPendingEvent = true; + mPendingEvent.light = absinfo.value; + } + return 0; +} + +int LightSensor::setDelay(int32_t handle, int64_t ns) +{ + int fd; + strcpy(&input_sysfs_path[input_sysfs_path_len], "poll_delay"); + fd = open(input_sysfs_path, O_RDWR); + if (fd >= 0) { + char buf[80]; + sprintf(buf, "%lld", ns); + write(fd, buf, strlen(buf)+1); + close(fd); + return 0; + } + return -1; +} + +int LightSensor::enable(int32_t handle, int en) +{ + int flags = en ? 1 : 0; + if (flags != mEnabled) { + int fd; + strcpy(&input_sysfs_path[input_sysfs_path_len], "enable"); + fd = open(input_sysfs_path, O_RDWR); + if (fd >= 0) { + char buf[2]; + int err; + buf[1] = 0; + if (flags) { + buf[0] = '1'; + } else { + buf[0] = '0'; + } + err = write(fd, buf, sizeof(buf)); + close(fd); + mEnabled = flags; + return 0; + } + return -1; + } + return 0; +} + +bool LightSensor::hasPendingEvents() const { + return mHasPendingEvent; +} + +int LightSensor::readEvents(sensors_event_t* data, int count) +{ + if (count < 1) + return -EINVAL; + + if (mHasPendingEvent) { + mHasPendingEvent = false; + mPendingEvent.timestamp = getTimestamp(); + *data = mPendingEvent; + return mEnabled ? 1 : 0; + } + + ssize_t n = mInputReader.fill(data_fd); + if (n < 0) + return n; + + int numEventReceived = 0; + input_event const* event; + + while (count && mInputReader.readEvent(&event)) { + int type = event->type; + if (type == EV_ABS) { + if (event->code == EVENT_TYPE_LIGHT) { + if (event->value != -1) { + LOGV("LightSensor: event (value=%d)", event->value); + // FIXME: not sure why we're getting -1 sometimes + mPendingEvent.light = event->value; + } + } + } else if (type == EV_SYN) { + mPendingEvent.timestamp = timevalToNano(event->time); + if (mEnabled) { + *data++ = mPendingEvent; + count--; + numEventReceived++; + } + } else { + LOGE("LightSensor: unknown event (type=%d, code=%d)", + type, event->code); + } + mInputReader.next(); + } + + return numEventReceived; +} diff --git a/libsensors/LightSensor.h b/libsensors/LightSensor.h new file mode 100755 index 0000000..85e65d9 --- /dev/null +++ b/libsensors/LightSensor.h @@ -0,0 +1,55 @@ +/* + * Copyright (C) 2008 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. + */ + +#ifndef ANDROID_LIGHT_SENSOR_H +#define ANDROID_LIGHT_SENSOR_H + +#include <stdint.h> +#include <errno.h> +#include <sys/cdefs.h> +#include <sys/types.h> + +#include "sensors.h" +#include "SensorBase.h" +#include "InputEventReader.h" + +/*****************************************************************************/ + +struct input_event; + +class LightSensor : public SensorBase { + int mEnabled; + InputEventCircularReader mInputReader; + sensors_event_t mPendingEvent; + bool mHasPendingEvent; + char input_sysfs_path[PATH_MAX]; + int input_sysfs_path_len; + + float indexToValue(size_t index) const; + int setInitialState(); + +public: + LightSensor(); + virtual ~LightSensor(); + virtual int readEvents(sensors_event_t* data, int count); + virtual bool hasPendingEvents() const; + virtual int setDelay(int32_t handle, int64_t ns); + virtual int enable(int32_t handle, int enabled); +}; + +/*****************************************************************************/ + +#endif // ANDROID_LIGHT_SENSOR_H diff --git a/libsensors/MODULE_LICENSE_APACHE2 b/libsensors/MODULE_LICENSE_APACHE2 new file mode 100755 index 0000000..e69de29 --- /dev/null +++ b/libsensors/MODULE_LICENSE_APACHE2 diff --git a/libsensors/ProximitySensor.cpp b/libsensors/ProximitySensor.cpp new file mode 100755 index 0000000..3029e5a --- /dev/null +++ b/libsensors/ProximitySensor.cpp @@ -0,0 +1,143 @@ +/* + * Copyright (C) 2008 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 <fcntl.h> +#include <errno.h> +#include <math.h> +#include <poll.h> +#include <unistd.h> +#include <dirent.h> +#include <sys/select.h> + +#include <linux/capella_cm3602.h> + +#include <cutils/log.h> + +#include "ProximitySensor.h" + +/*****************************************************************************/ + +ProximitySensor::ProximitySensor() + : SensorBase(CM_DEVICE_NAME, "proximity_sensor"), + mEnabled(0), + mInputReader(4), + mHasPendingEvent(false) +{ + mPendingEvent.version = sizeof(sensors_event_t); + mPendingEvent.sensor = ID_P; + mPendingEvent.type = SENSOR_TYPE_PROXIMITY; + memset(mPendingEvent.data, 0, sizeof(mPendingEvent.data)); + + if (data_fd) { + strcpy(input_sysfs_path, "/sys/class/input/"); + strcat(input_sysfs_path, input_name); + strcat(input_sysfs_path, "/device/"); + input_sysfs_path_len = strlen(input_sysfs_path); + enable(0, 1); + } +} + +ProximitySensor::~ProximitySensor() { + if (mEnabled) { + enable(0, 0); + } +} + +int ProximitySensor::setInitialState() { + struct input_absinfo absinfo; + if (!ioctl(data_fd, EVIOCGABS(EVENT_TYPE_PROXIMITY), &absinfo)) { + // make sure to report an event immediately + mHasPendingEvent = true; + mPendingEvent.distance = indexToValue(absinfo.value); + } + return 0; +} + +int ProximitySensor::enable(int32_t, int en) { + int flags = en ? 1 : 0; + if (flags != mEnabled) { + int fd; + strcpy(&input_sysfs_path[input_sysfs_path_len], "enable"); + fd = open(input_sysfs_path, O_RDWR); + if (fd >= 0) { + char buf[2]; + buf[1] = 0; + if (flags) { + buf[0] = '1'; + } else { + buf[0] = '0'; + } + write(fd, buf, sizeof(buf)); + close(fd); + mEnabled = flags; + setInitialState(); + return 0; + } + return -1; + } + return 0; +} + +bool ProximitySensor::hasPendingEvents() const { + return mHasPendingEvent; +} + +int ProximitySensor::readEvents(sensors_event_t* data, int count) +{ + if (count < 1) + return -EINVAL; + + if (mHasPendingEvent) { + mHasPendingEvent = false; + mPendingEvent.timestamp = getTimestamp(); + *data = mPendingEvent; + return mEnabled ? 1 : 0; + } + + ssize_t n = mInputReader.fill(data_fd); + if (n < 0) + return n; + + int numEventReceived = 0; + input_event const* event; + + while (count && mInputReader.readEvent(&event)) { + int type = event->type; + if (type == EV_ABS) { + if (event->code == EVENT_TYPE_PROXIMITY) { + mPendingEvent.distance = indexToValue(event->value); + } + } else if (type == EV_SYN) { + mPendingEvent.timestamp = timevalToNano(event->time); + if (mEnabled) { + *data++ = mPendingEvent; + count--; + numEventReceived++; + } + } else { + LOGE("ProximitySensor: unknown event (type=%d, code=%d)", + type, event->code); + } + mInputReader.next(); + } + + return numEventReceived; +} + +float ProximitySensor::indexToValue(size_t index) const +{ + return index * PROXIMITY_THRESHOLD_CM; +} diff --git a/libsensors/ProximitySensor.h b/libsensors/ProximitySensor.h new file mode 100755 index 0000000..08ea49c --- /dev/null +++ b/libsensors/ProximitySensor.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2008 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. + */ + +#ifndef ANDROID_PROXIMITY_SENSOR_H +#define ANDROID_PROXIMITY_SENSOR_H + +#include <stdint.h> +#include <errno.h> +#include <sys/cdefs.h> +#include <sys/types.h> + +#include "sensors.h" +#include "SensorBase.h" +#include "InputEventReader.h" + +/*****************************************************************************/ + +struct input_event; + +class ProximitySensor : public SensorBase { + int mEnabled; + InputEventCircularReader mInputReader; + sensors_event_t mPendingEvent; + bool mHasPendingEvent; + char input_sysfs_path[PATH_MAX]; + int input_sysfs_path_len; + + int setInitialState(); + float indexToValue(size_t index) const; + +public: + ProximitySensor(); + virtual ~ProximitySensor(); + virtual int readEvents(sensors_event_t* data, int count); + virtual bool hasPendingEvents() const; + virtual int enable(int32_t handle, int enabled); +}; + +/*****************************************************************************/ + +#endif // ANDROID_PROXIMITY_SENSOR_H diff --git a/libsensors/SensorBase.cpp b/libsensors/SensorBase.cpp new file mode 100755 index 0000000..d448eb2 --- /dev/null +++ b/libsensors/SensorBase.cpp @@ -0,0 +1,128 @@ +/* + * Copyright (C) 2008 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 <fcntl.h> +#include <errno.h> +#include <math.h> +#include <poll.h> +#include <unistd.h> +#include <dirent.h> +#include <sys/select.h> + +#include <cutils/log.h> + +#include <linux/input.h> + +#include "SensorBase.h" + +/*****************************************************************************/ + +SensorBase::SensorBase( + const char* dev_name, + const char* data_name) + : dev_name(dev_name), data_name(data_name), + dev_fd(-1), data_fd(-1) +{ + if (data_name) { + data_fd = openInput(data_name); + } +} + +SensorBase::~SensorBase() { + if (data_fd >= 0) { + close(data_fd); + } + if (dev_fd >= 0) { + close(dev_fd); + } +} + +int SensorBase::open_device() { + if (dev_fd<0 && dev_name) { + dev_fd = open(dev_name, O_RDONLY); + LOGE_IF(dev_fd<0, "Couldn't open %s (%s)", dev_name, strerror(errno)); + } + return 0; +} + +int SensorBase::close_device() { + if (dev_fd >= 0) { + close(dev_fd); + dev_fd = -1; + } + return 0; +} + +int SensorBase::getFd() const { + if (!data_name) { + return dev_fd; + } + return data_fd; +} + +int SensorBase::setDelay(int32_t handle, int64_t ns) { + return 0; +} + +bool SensorBase::hasPendingEvents() const { + return false; +} + +int64_t SensorBase::getTimestamp() { + struct timespec t; + t.tv_sec = t.tv_nsec = 0; + clock_gettime(CLOCK_MONOTONIC, &t); + return int64_t(t.tv_sec)*1000000000LL + t.tv_nsec; +} + +int SensorBase::openInput(const char* inputName) { + int fd = -1; + const char *dirname = "/dev/input"; + char devname[PATH_MAX]; + char *filename; + DIR *dir; + struct dirent *de; + dir = opendir(dirname); + if(dir == NULL) + return -1; + strcpy(devname, dirname); + filename = devname + strlen(devname); + *filename++ = '/'; + while((de = readdir(dir))) { + if(de->d_name[0] == '.' && + (de->d_name[1] == '\0' || + (de->d_name[1] == '.' && de->d_name[2] == '\0'))) + continue; + strcpy(filename, de->d_name); + fd = open(devname, O_RDONLY); + if (fd>=0) { + char name[80]; + if (ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name) < 1) { + name[0] = '\0'; + } + if (!strcmp(name, inputName)) { + strcpy(input_name, filename); + break; + } else { + close(fd); + fd = -1; + } + } + } + closedir(dir); + LOGE_IF(fd<0, "couldn't find '%s' input device", inputName); + return fd; +} diff --git a/libsensors/SensorBase.h b/libsensors/SensorBase.h new file mode 100755 index 0000000..bb4d055 --- /dev/null +++ b/libsensors/SensorBase.h @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2008 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. + */ + +#ifndef ANDROID_SENSOR_BASE_H +#define ANDROID_SENSOR_BASE_H + +#include <stdint.h> +#include <errno.h> +#include <sys/cdefs.h> +#include <sys/types.h> + + +/*****************************************************************************/ + +struct sensors_event_t; + +class SensorBase { +protected: + const char* dev_name; + const char* data_name; + char input_name[PATH_MAX]; + int dev_fd; + int data_fd; + + int openInput(const char* inputName); + static int64_t getTimestamp(); + + + static int64_t timevalToNano(timeval const& t) { + return t.tv_sec*1000000000LL + t.tv_usec*1000; + } + + int open_device(); + int close_device(); + +public: + SensorBase( + const char* dev_name, + const char* data_name); + + virtual ~SensorBase(); + + virtual int readEvents(sensors_event_t* data, int count) = 0; + virtual bool hasPendingEvents() const; + virtual int getFd() const; + virtual int setDelay(int32_t handle, int64_t ns); + virtual int enable(int32_t handle, int enabled) = 0; +}; + +/*****************************************************************************/ + +#endif // ANDROID_SENSOR_BASE_H diff --git a/libsensors/ak8973b.h b/libsensors/ak8973b.h new file mode 100755 index 0000000..9b7ab60 --- /dev/null +++ b/libsensors/ak8973b.h @@ -0,0 +1,51 @@ +/* + * Definitions for akm8973 compass chip. + */ +#ifndef AKM8973_H +#define AKM8973_H + +#include <linux/ioctl.h> + +#define AKM8973_I2C_NAME "ak8973b" + +#define AKMIO 0xA1 + +/* IOCTLs for AKM library */ +#define ECS_IOCTL_WRITE _IOW(AKMIO, 0x01, char*) +#define ECS_IOCTL_READ _IOWR(AKMIO, 0x02, char*) +#define ECS_IOCTL_RESET _IO(AKMIO, 0x03) +#define ECS_IOCTL_SET_MODE _IOW(AKMIO, 0x04, short) +#define ECS_IOCTL_GETDATA _IOR(AKMIO, 0x05, char[SENSOR_DATA_SIZE]) +#define ECS_IOCTL_SET_YPR _IOW(AKMIO, 0x06, short[12]) +#define ECS_IOCTL_GET_OPEN_STATUS _IOR(AKMIO, 0x07, int) +#define ECS_IOCTL_GET_CLOSE_STATUS _IOR(AKMIO, 0x08, int) +#define ECS_IOCTL_GET_DELAY _IOR(AKMIO, 0x30, int64_t) +#define ECS_IOCTL_GET_PROJECT_NAME _IOR(AKMIO, 0x0D, char[64]) +#define ECS_IOCTL_GET_MATRIX _IOR(AKMIO, 0x0E, short [4][3][3]) + +/* IOCTLs for APPs */ +#define ECS_IOCTL_APP_SET_MODE _IOW(AKMIO, 0x10, short) +#define ECS_IOCTL_APP_SET_MFLAG _IOW(AKMIO, 0x11, short) +#define ECS_IOCTL_APP_GET_MFLAG _IOW(AKMIO, 0x12, short) +#define ECS_IOCTL_APP_SET_AFLAG _IOW(AKMIO, 0x13, short) +#define ECS_IOCTL_APP_GET_AFLAG _IOR(AKMIO, 0x14, short) +#define ECS_IOCTL_APP_SET_TFLAG _IOR(AKMIO, 0x15, short) +#define ECS_IOCTL_APP_GET_TFLAG _IOR(AKMIO, 0x16, short) +#define ECS_IOCTL_APP_RESET_PEDOMETER _IO(AKMIO, 0x17) +#define ECS_IOCTL_APP_SET_DELAY _IOW(AKMIO, 0x18, int64_t) +#define ECS_IOCTL_APP_GET_DELAY ECS_IOCTL_GET_DELAY + +/* Set raw magnetic vector flag */ +#define ECS_IOCTL_APP_SET_MVFLAG _IOW(AKMIO, 0x19, short) + +/* Get raw magnetic vector flag */ +#define ECS_IOCTL_APP_GET_MVFLAG _IOR(AKMIO, 0x1A, short) + +struct akm8973_platform_data { + short layouts[4][3][3]; + char project_name[64]; + int gpio_RST; + int gpio_INT; +}; + +#endif diff --git a/libsensors/sensors.cpp b/libsensors/sensors.cpp new file mode 100755 index 0000000..6f0bdad --- /dev/null +++ b/libsensors/sensors.cpp @@ -0,0 +1,326 @@ +/* + * Copyright (C) 2008 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. + */ + +#define LOG_TAG "Sensors" + +#include <hardware/sensors.h> +#include <fcntl.h> +#include <errno.h> +#include <dirent.h> +#include <math.h> +#include <poll.h> +#include <pthread.h> +#include <stdlib.h> + +#include <linux/input.h> + +#include <utils/Atomic.h> +#include <utils/Log.h> + +#include "sensors.h" + +#include "LightSensor.h" +#include "ProximitySensor.h" +#include "AkmSensor.h" +#include "GyroSensor.h" + +/*****************************************************************************/ + +#define DELAY_OUT_TIME 0x7FFFFFFF + +#define LIGHT_SENSOR_POLLTIME 2000000000 + + +#define SENSORS_ACCELERATION (1<<ID_A) +#define SENSORS_MAGNETIC_FIELD (1<<ID_M) +#define SENSORS_ORIENTATION (1<<ID_O) +#define SENSORS_LIGHT (1<<ID_L) +#define SENSORS_PROXIMITY (1<<ID_P) +#define SENSORS_GYROSCOPE (1<<ID_GY) + +#define SENSORS_ACCELERATION_HANDLE 0 +#define SENSORS_MAGNETIC_FIELD_HANDLE 1 +#define SENSORS_ORIENTATION_HANDLE 2 +#define SENSORS_LIGHT_HANDLE 3 +#define SENSORS_PROXIMITY_HANDLE 4 +#define SENSORS_GYROSCOPE_HANDLE 5 + +#define AKM_FTRACE 0 +#define AKM_DEBUG 0 +#define AKM_DATA 0 + +/*****************************************************************************/ + +/* The SENSORS Module */ +static const struct sensor_t sSensorList[] = { + { "KR3DM 3-axis Accelerometer", + "STMicroelectronics", + 1, SENSORS_ACCELERATION_HANDLE, + SENSOR_TYPE_ACCELEROMETER, RANGE_A, CONVERT_A, 0.23f, 20000, { } }, + { "AK8975 3-axis Magnetic field sensor", + "Asahi Kasei Microdevices", + 1, SENSORS_MAGNETIC_FIELD_HANDLE, + SENSOR_TYPE_MAGNETIC_FIELD, 2000.0f, CONVERT_M, 6.8f, 16667, { } }, + { "AK8973 Orientation sensor", + "Asahi Kasei Microdevices", + 1, SENSORS_ORIENTATION_HANDLE, + SENSOR_TYPE_ORIENTATION, 360.0f, CONVERT_O, 7.8f, 16667, { } }, + { "CM3663 Light sensor", + "Capella Microsystems", + 1, SENSORS_LIGHT_HANDLE, + SENSOR_TYPE_LIGHT, 10240.0f, 1.0f, 0.75f, 0, { } }, + { "CM3663 Proximity sensor", + "Capella Microsystems", + 1, SENSORS_PROXIMITY_HANDLE, + SENSOR_TYPE_PROXIMITY, 5.0f, 5.0f, 0.75f, 0, { } }, + { "K3G Gyroscope sensor", + "STMicroelectronics", + 1, SENSORS_GYROSCOPE_HANDLE, + SENSOR_TYPE_GYROSCOPE, RANGE_GYRO, CONVERT_GYRO, 6.1f, 1190, { } }, +}; + + +static int open_sensors(const struct hw_module_t* module, const char* id, + struct hw_device_t** device); + + +static int sensors__get_sensors_list(struct sensors_module_t* module, + struct sensor_t const** list) +{ + *list = sSensorList; + return ARRAY_SIZE(sSensorList); +} + +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: "Samsung Sensor module", + author: "Samsung Electronic Company", + methods: &sensors_module_methods, + }, + get_sensors_list: sensors__get_sensors_list, +}; + +struct sensors_poll_context_t { + struct sensors_poll_device_t device; // must be first + + sensors_poll_context_t(); + ~sensors_poll_context_t(); + int activate(int handle, int enabled); + int setDelay(int handle, int64_t ns); + int pollEvents(sensors_event_t* data, int count); + +private: + enum { + light = 0, + proximity = 1, + akm = 2, + gyro = 3, + numSensorDrivers, + numFds, + }; + + static const size_t wake = numFds - 1; + static const char WAKE_MESSAGE = 'W'; + struct pollfd mPollFds[numFds]; + int mWritePipeFd; + SensorBase* mSensors[numSensorDrivers]; + + int handleToDriver(int handle) const { + switch (handle) { + case ID_A: + case ID_M: + case ID_O: + return akm; + case ID_P: + return proximity; + case ID_L: + return light; + case ID_GY: + return gyro; + } + return -EINVAL; + } +}; + +/*****************************************************************************/ + +sensors_poll_context_t::sensors_poll_context_t() +{ + mSensors[light] = new LightSensor(); + mPollFds[light].fd = mSensors[light]->getFd(); + mPollFds[light].events = POLLIN; + mPollFds[light].revents = 0; + + mSensors[proximity] = new ProximitySensor(); + mPollFds[proximity].fd = mSensors[proximity]->getFd(); + mPollFds[proximity].events = POLLIN; + mPollFds[proximity].revents = 0; + + mSensors[akm] = new AkmSensor(); + mPollFds[akm].fd = mSensors[akm]->getFd(); + mPollFds[akm].events = POLLIN; + mPollFds[akm].revents = 0; + + mSensors[gyro] = new GyroSensor(); + mPollFds[gyro].fd = mSensors[gyro]->getFd(); + mPollFds[gyro].events = POLLIN; + mPollFds[gyro].revents = 0; + + int wakeFds[2]; + int result = pipe(wakeFds); + LOGE_IF(result<0, "error creating wake pipe (%s)", strerror(errno)); + fcntl(wakeFds[0], F_SETFL, O_NONBLOCK); + fcntl(wakeFds[1], F_SETFL, O_NONBLOCK); + mWritePipeFd = wakeFds[1]; + + mPollFds[wake].fd = wakeFds[0]; + mPollFds[wake].events = POLLIN; + mPollFds[wake].revents = 0; +} + +sensors_poll_context_t::~sensors_poll_context_t() { + for (int i=0 ; i<numSensorDrivers ; i++) { + delete mSensors[i]; + } + close(mPollFds[wake].fd); + close(mWritePipeFd); +} + +int sensors_poll_context_t::activate(int handle, int enabled) { + int index = handleToDriver(handle); + if (index < 0) return index; + int err = mSensors[index]->enable(handle, enabled); + if (enabled && !err) { + const char wakeMessage(WAKE_MESSAGE); + int result = write(mWritePipeFd, &wakeMessage, 1); + LOGE_IF(result<0, "error sending wake message (%s)", strerror(errno)); + } + return err; +} + +int sensors_poll_context_t::setDelay(int handle, int64_t ns) { + + int index = handleToDriver(handle); + if (index < 0) return index; + return mSensors[index]->setDelay(handle, ns); +} + +int sensors_poll_context_t::pollEvents(sensors_event_t* data, int count) +{ + int nbEvents = 0; + int n = 0; + + do { + // see if we have some leftover from the last poll() + for (int i=0 ; count && i<numSensorDrivers ; i++) { + SensorBase* const sensor(mSensors[i]); + if ((mPollFds[i].revents & POLLIN) || (sensor->hasPendingEvents())) { + int nb = sensor->readEvents(data, count); + if (nb < count) { + // no more data for this sensor + mPollFds[i].revents = 0; + } + count -= nb; + nbEvents += nb; + data += nb; + } + } + + if (count) { + // we still have some room, so try to see if we can get + // some events immediately or just wait if we don't have + // anything to return + n = poll(mPollFds, numFds, nbEvents ? 0 : -1); + if (n<0) { + LOGE("poll() failed (%s)", strerror(errno)); + return -errno; + } + if (mPollFds[wake].revents & POLLIN) { + char msg; + int result = read(mPollFds[wake].fd, &msg, 1); + LOGE_IF(result<0, "error reading from wake pipe (%s)", strerror(errno)); + LOGE_IF(msg != WAKE_MESSAGE, "unknown message on wake queue (0x%02x)", int(msg)); + mPollFds[wake].revents = 0; + } + } + // if we have events and space, go read them + } while (n && count); + + return nbEvents; +} + +/*****************************************************************************/ + +static int poll__close(struct hw_device_t *dev) +{ + sensors_poll_context_t *ctx = (sensors_poll_context_t *)dev; + if (ctx) { + delete ctx; + } + return 0; +} + +static int poll__activate(struct sensors_poll_device_t *dev, + int handle, int enabled) { + sensors_poll_context_t *ctx = (sensors_poll_context_t *)dev; + return ctx->activate(handle, enabled); +} + +static int poll__setDelay(struct sensors_poll_device_t *dev, + int handle, int64_t ns) { + sensors_poll_context_t *ctx = (sensors_poll_context_t *)dev; + return ctx->setDelay(handle, ns); +} + +static int poll__poll(struct sensors_poll_device_t *dev, + sensors_event_t* data, int count) { + sensors_poll_context_t *ctx = (sensors_poll_context_t *)dev; + return ctx->pollEvents(data, count); +} + +/*****************************************************************************/ + +/** Open a new instance of a sensor device using name */ +static int open_sensors(const struct hw_module_t* module, const char* id, + struct hw_device_t** device) +{ + int status = -EINVAL; + sensors_poll_context_t *dev = new sensors_poll_context_t(); + + memset(&dev->device, 0, sizeof(sensors_poll_device_t)); + + dev->device.common.tag = HARDWARE_DEVICE_TAG; + dev->device.common.version = 0; + dev->device.common.module = const_cast<hw_module_t*>(module); + dev->device.common.close = poll__close; + dev->device.activate = poll__activate; + dev->device.setDelay = poll__setDelay; + dev->device.poll = poll__poll; + + *device = &dev->device.common; + status = 0; + + return status; +} + diff --git a/libsensors/sensors.h b/libsensors/sensors.h new file mode 100755 index 0000000..ecc6fed --- /dev/null +++ b/libsensors/sensors.h @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2008 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. + */ + +#ifndef ANDROID_SENSORS_H +#define ANDROID_SENSORS_H + +#include <stdint.h> +#include <errno.h> +#include <sys/cdefs.h> +#include <sys/types.h> + +#include <linux/input.h> + +#include <hardware/hardware.h> +#include <hardware/sensors.h> + +__BEGIN_DECLS + +/*****************************************************************************/ + +#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0])) + +#define ID_A (0) +#define ID_M (1) +#define ID_O (2) +#define ID_L (3) +#define ID_P (4) +#define ID_GY (5) + +/*****************************************************************************/ + +/* + * The SENSORS Module + */ + +/* the CM3663 is a binary proximity sensor that triggers around 6 cm on + * this hardware */ +#define PROXIMITY_THRESHOLD_CM 6.0f + +/*****************************************************************************/ + +#define AKM_DEVICE_NAME "/dev/akm8975" +#define CM_DEVICE_NAME "/dev/i2c11" // FIXME Proximity +#define LS_DEVICE_NAME "/dev/i2c11" // FIXME Lig + +/* + E/Sensors ( 2656): AkmSensor: processing event (type=0, code=0) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=8) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=3) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=4) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=5) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=0) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=1) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=2) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=6) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=7) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=9) + E/Sensors ( 2656): AkmSensor: processing event (type=0, code=0) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=8) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=3) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=4) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=5) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=0) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=1) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=2) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=6) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=7) + E/Sensors ( 2656): AkmSensor: processing event (type=2, code=9) +*/ + +// for akm8975 +#define EVENT_TYPE_ACCEL_X ABS_Y //1 +#define EVENT_TYPE_ACCEL_Y ABS_X //0 +#define EVENT_TYPE_ACCEL_Z ABS_Z //2 +//#define EVENT_TYPE_ACCEL_STATUS ABS_WHEEL //8 + +#define EVENT_TYPE_YAW ABS_RX //3 +#define EVENT_TYPE_PITCH ABS_RY //4 +#define EVENT_TYPE_ROLL ABS_RZ //5 +#define EVENT_TYPE_ORIENT_STATUS ABS_WHEEL //8 + +#define EVENT_TYPE_MAGV_X ABS_RUDDER // 6 +#define EVENT_TYPE_MAGV_Y ABS_THROTTLE // 7 +#define EVENT_TYPE_MAGV_Z ABS_GAS // 9 + +#define EVENT_TYPE_TEMPERATURE ABS_THROTTLE +#define EVENT_TYPE_STEP_COUNT ABS_GAS +#define EVENT_TYPE_PROXIMITY ABS_DISTANCE +#define EVENT_TYPE_LIGHT ABS_MISC + +#define EVENT_TYPE_GYRO_X REL_RY +#define EVENT_TYPE_GYRO_Y REL_RX +#define EVENT_TYPE_GYRO_Z REL_RZ + +// 90 LSB = 1G for KR3DM +#define LSB (90.0f) +#define NUMOFACCDATA (8.0f) + +// conversion of acceleration data to SI units (m/s^2) +#define RANGE_A (2*GRAVITY_EARTH) +#define CONVERT_A (GRAVITY_EARTH / LSB / NUMOFACCDATA) +#define CONVERT_A_X (CONVERT_A) +#define CONVERT_A_Y (-CONVERT_A) +#define CONVERT_A_Z (-CONVERT_A) + +// conversion of magnetic data to uT units +#define CONVERT_M (1.0f/16.0f) +#define CONVERT_M_X (CONVERT_M) +#define CONVERT_M_Y (-CONVERT_M) +#define CONVERT_M_Z (CONVERT_M) + +/* conversion of orientation data to degree units */ +#define CONVERT_O (1.0f/64.0f) +#define CONVERT_O_A (CONVERT_O) +#define CONVERT_O_P (CONVERT_O) +#define CONVERT_O_R (-CONVERT_O) + +// conversion of gyro data to SI units (radian/sec) +#define RANGE_GYRO (2000.0f*(float)M_PI/180.0f) +#define CONVERT_GYRO ((70.0f / 1000.0f) * ((float)M_PI / 180.0f)) +#define CONVERT_GYRO_X (CONVERT_GYRO) +#define CONVERT_GYRO_Y (-CONVERT_GYRO) +#define CONVERT_GYRO_Z (CONVERT_GYRO) + +#define SENSOR_STATE_MASK (0x7FFF) + +/*****************************************************************************/ + +__END_DECLS + +#endif // ANDROID_SENSORS_H |