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authorKyle Repinski <repinski23@gmail.com>2015-12-02 12:32:39 -0600
committerZiyan <jaraidaniel@gmail.com>2016-01-17 22:41:00 +0100
commit153b50ec9714ff4ba6ce083ca0d49fd31658ce15 (patch)
tree8dab0e630a39552385d42a266ba39dfdaf837752 /libsensors/SensorBase.cpp
parentb8515d8e0376e300ed17598f0288fad0e6ae0d89 (diff)
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sensors: Merge invensense HAL into main tuna HAL.
Since these are both in our device tree now, there's no need to have them be separated. This saves about 14KB of space as well. Change-Id: Ibfcd7da4b30bb261586ecd9373e6fd4a343e0e06
Diffstat (limited to 'libsensors/SensorBase.cpp')
-rw-r--r--libsensors/SensorBase.cpp122
1 files changed, 122 insertions, 0 deletions
diff --git a/libsensors/SensorBase.cpp b/libsensors/SensorBase.cpp
new file mode 100644
index 0000000..6d6ab25
--- /dev/null
+++ b/libsensors/SensorBase.cpp
@@ -0,0 +1,122 @@
+/*
+ * 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 <string.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);
+ ALOGE_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 __unused, int64_t ns __unused) {
+ return 0;
+}
+
+bool SensorBase::hasPendingEvents() const {
+ return false;
+}
+
+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);
+ ALOGE_IF(fd<0, "couldn't find '%s' input device", inputName);
+ return fd;
+}