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author | Scott Warner <Tortel1210@gmail.com> | 2015-10-11 08:30:01 -0400 |
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committer | Scott Warner <Tortel1210@gmail.com> | 2015-10-12 09:40:33 -0400 |
commit | 901b63272e2eb758fe2f4a588e6e9f308fe50f6c (patch) | |
tree | eefd9603dc5f829b80bc7bb116e9de5ba4297714 /60xx/libsensors/SensorBase.cpp | |
parent | e0c1691f695f828608c36315fa405db2fa8d153e (diff) | |
download | android_hardware_invensense-901b63272e2eb758fe2f4a588e6e9f308fe50f6c.tar.gz android_hardware_invensense-901b63272e2eb758fe2f4a588e6e9f308fe50f6c.tar.bz2 android_hardware_invensense-901b63272e2eb758fe2f4a588e6e9f308fe50f6c.zip |
Revert "Remove files for unsupported devices."
This reverts commit f5f584ee173faef40f226c6e0e8580a2ecbe079b.
Change-Id: I4e1b41922b5ccaac2314dac7f43df5740e2e9361
Diffstat (limited to '60xx/libsensors/SensorBase.cpp')
-rw-r--r-- | 60xx/libsensors/SensorBase.cpp | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/60xx/libsensors/SensorBase.cpp b/60xx/libsensors/SensorBase.cpp new file mode 100644 index 0000000..9cc1ee8 --- /dev/null +++ b/60xx/libsensors/SensorBase.cpp @@ -0,0 +1,129 @@ +/* + * 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, 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); + ALOGE_IF(fd<0, "couldn't find '%s' input device", inputName); + return fd; +} |