diff options
Diffstat (limited to 'libsensors_iio/SensorBase.cpp')
-rw-r--r-- | libsensors_iio/SensorBase.cpp | 285 |
1 files changed, 142 insertions, 143 deletions
diff --git a/libsensors_iio/SensorBase.cpp b/libsensors_iio/SensorBase.cpp index fd0e2ca..0cf17af 100644 --- a/libsensors_iio/SensorBase.cpp +++ b/libsensors_iio/SensorBase.cpp @@ -1,143 +1,142 @@ -/*
-* 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.
-*/
-
-#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"
-#include "local_log_def.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);
- LOGV_IF(EXTRA_VERBOSE, "path open %s", devname);
- LOGI("path open %s", devname);
- if (fd >= 0) {
- char name[80];
- if (ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name) < 1) {
- name[0] = '\0';
- }
- LOGV_IF(EXTRA_VERBOSE, "name read %s", name);
- 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;
-}
-
-int SensorBase::enable(int32_t handle, int enabled)
-{
- return 0;
-}
+/* +* 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. +*/ + +#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); + LOGV_IF(EXTRA_VERBOSE, "path open %s", devname); + LOGI("path open %s", devname); + if (fd >= 0) { + char name[80]; + if (ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name) < 1) { + name[0] = '\0'; + } + LOGV_IF(EXTRA_VERBOSE, "name read %s", name); + 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; +} + +int SensorBase::enable(int32_t handle, int enabled) +{ + return 0; +} |