diff options
Diffstat (limited to 'libsensors_iio/sensors_mpl.cpp')
| -rw-r--r-- | libsensors_iio/sensors_mpl.cpp | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/libsensors_iio/sensors_mpl.cpp b/libsensors_iio/sensors_mpl.cpp new file mode 100644 index 0000000..990c5f5 --- /dev/null +++ b/libsensors_iio/sensors_mpl.cpp @@ -0,0 +1,236 @@ +/*
+* Copyright (C) 2012 Invensense, Inc.
+*
+* 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 FUNC_LOG LOGV("%s", __PRETTY_FUNCTION__)
+
+#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 "MPLSensor.h"
+#include "local_log_def.h"
+
+/*****************************************************************************/
+/* The SENSORS Module */
+#define LOCAL_SENSORS (7)
+
+static struct sensor_t sSensorList[7];
+static int numSensors = LOCAL_SENSORS;
+
+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 numSensors;
+}
+
+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: "Invensense module",
+ author: "Invensense Inc.",
+ 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 {
+ mpl = 0,
+ compass,
+ numSensorDrivers, // wake pipe goes here
+ numFds,
+ };
+
+ struct pollfd mPollFds[numSensorDrivers];
+ SensorBase *mSensor;
+ CompassSensor *mCompassSensor;
+};
+
+/******************************************************************************/
+
+sensors_poll_context_t::sensors_poll_context_t() {
+ VFUNC_LOG;
+
+ CompassSensor *mCompassSensor = new CompassSensor();
+ MPLSensor *mplSensor = new MPLSensor(mCompassSensor);
+
+ // setup the callback object for handing mpl callbacks
+ setCallbackObject(mplSensor);
+
+ // populate the sensor list
+ numSensors =
+ mplSensor->populateSensorList(sSensorList, sizeof(sSensorList));
+
+ mSensor = mplSensor;
+ mPollFds[mpl].fd = mSensor->getFd();
+ mPollFds[mpl].events = POLLIN;
+ mPollFds[mpl].revents = 0;
+
+ mPollFds[compass].fd = mCompassSensor->getFd();
+ mPollFds[compass].events = POLLIN;
+ mPollFds[compass].revents = 0;
+}
+
+sensors_poll_context_t::~sensors_poll_context_t() {
+ FUNC_LOG;
+ delete mSensor;
+ delete mCompassSensor;
+}
+
+int sensors_poll_context_t::activate(int handle, int enabled) {
+ FUNC_LOG;
+ return mSensor->enable(handle, enabled);
+}
+
+int sensors_poll_context_t::setDelay(int handle, int64_t ns)
+{
+ FUNC_LOG;
+ return mSensor->setDelay(handle, ns);
+}
+
+int sensors_poll_context_t::pollEvents(sensors_event_t *data, int count)
+{
+ VHANDLER_LOG;
+
+ int nbEvents = 0;
+ int nb, polltime = -1;
+
+ // look for new events
+ nb = poll(mPollFds, numSensorDrivers, polltime);
+
+ if (nb > 0) {
+ for (int i = 0; count && i < numSensorDrivers; i++) {
+ if (mPollFds[i].revents & POLLIN) {
+ nb = 0;
+ if (i == mpl) {
+ nb = mSensor->readEvents(data, count);
+ }
+ else if (i == compass) {
+ nb = ((MPLSensor*) mSensor)->readCompassEvents(data, count);
+ }
+/*
+ if (nb > 0) {
+ count -= nb;
+ nbEvents += nb;
+ data += nb;
+ mPollFds[i].revents = 0;
+ }
+ */
+ }
+ }
+ nb = ((MPLSensor*) mSensor)->executeOnData(data, count);
+ if (nb > 0) {
+ count -= nb;
+ nbEvents += nb;
+ data += nb;
+ mPollFds[mpl].revents = 0;
+ mPollFds[compass].revents = 0;
+ }
+ }
+
+ return nbEvents;
+}
+
+/******************************************************************************/
+
+static int poll__close(struct hw_device_t *dev)
+{
+ FUNC_LOG;
+ 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;
+ int s= ctx->setDelay(handle, ns);
+ return s;
+}
+
+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)
+{
+ FUNC_LOG;
+ 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;
+}
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