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Diffstat (limited to 'libsensors/lsm330dlc_gyroscope.c')
-rw-r--r--libsensors/lsm330dlc_gyroscope.c256
1 files changed, 0 insertions, 256 deletions
diff --git a/libsensors/lsm330dlc_gyroscope.c b/libsensors/lsm330dlc_gyroscope.c
deleted file mode 100644
index b91b433..0000000
--- a/libsensors/lsm330dlc_gyroscope.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- * Copyright (C) 2013 Paul Kocialkowski <contact@paulk.fr>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdint.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <math.h>
-#include <sys/types.h>
-#include <linux/ioctl.h>
-#include <linux/input.h>
-
-#include <hardware/sensors.h>
-#include <hardware/hardware.h>
-
-#define LOG_TAG "smdk4x12_sensors"
-#include <utils/Log.h>
-
-#include "smdk4x12_sensors.h"
-
-struct lsm330dlc_gyroscope_data {
- char path_enable[PATH_MAX];
- char path_delay[PATH_MAX];
-
- sensors_vec_t gyro;
-};
-
-int lsm330dlc_gyroscope_init(struct smdk4x12_sensors_handlers *handlers,
- struct smdk4x12_sensors_device *device)
-{
- struct lsm330dlc_gyroscope_data *data = NULL;
- char path[PATH_MAX] = { 0 };
- int input_fd = -1;
- int rc;
-
- ALOGD("%s(%p, %p)", __func__, handlers, device);
-
- if (handlers == NULL)
- return -EINVAL;
-
- data = (struct lsm330dlc_gyroscope_data *) calloc(1, sizeof(struct lsm330dlc_gyroscope_data));
-
- input_fd = input_open("gyro_sensor");
- if (input_fd < 0) {
- ALOGE("%s: Unable to open input", __func__);
- goto error;
- }
-
- rc = sysfs_path_prefix("gyro_sensor", (char *) &path);
- if (rc < 0 || path[0] == '\0') {
- ALOGE("%s: Unable to open sysfs", __func__);
- goto error;
- }
-
- snprintf(data->path_enable, PATH_MAX, "%s/enable", path);
- snprintf(data->path_delay, PATH_MAX, "%s/poll_delay", path);
-
- handlers->poll_fd = input_fd;
- handlers->data = (void *) data;
-
- return 0;
-
-error:
- if (data != NULL)
- free(data);
-
- if (input_fd >= 0)
- close(input_fd);
-
- handlers->poll_fd = -1;
- handlers->data = NULL;
-
- return -1;
-}
-
-int lsm330dlc_gyroscope_deinit(struct smdk4x12_sensors_handlers *handlers)
-{
- ALOGD("%s(%p)", __func__, handlers);
-
- if (handlers == NULL)
- return -EINVAL;
-
- if (handlers->poll_fd >= 0)
- close(handlers->poll_fd);
- handlers->poll_fd = -1;
-
- if (handlers->data != NULL)
- free(handlers->data);
- handlers->data = NULL;
-
- return 0;
-}
-
-int lsm330dlc_gyroscope_activate(struct smdk4x12_sensors_handlers *handlers)
-{
- struct lsm330dlc_gyroscope_data *data;
- int rc;
-
- ALOGD("%s(%p)", __func__, handlers);
-
- if (handlers == NULL || handlers->data == NULL)
- return -EINVAL;
-
- data = (struct lsm330dlc_gyroscope_data *) handlers->data;
-
- rc = sysfs_value_write(data->path_enable, 1);
- if (rc < 0) {
- ALOGE("%s: Unable to write sysfs value", __func__);
- return -1;
- }
-
- handlers->activated = 1;
-
- return 0;
-}
-
-int lsm330dlc_gyroscope_deactivate(struct smdk4x12_sensors_handlers *handlers)
-{
- struct lsm330dlc_gyroscope_data *data;
- int rc;
-
- ALOGD("%s(%p)", __func__, handlers);
-
- if (handlers == NULL || handlers->data == NULL)
- return -EINVAL;
-
- data = (struct lsm330dlc_gyroscope_data *) handlers->data;
-
- rc = sysfs_value_write(data->path_enable, 0);
- if (rc < 0) {
- ALOGE("%s: Unable to write sysfs value", __func__);
- return -1;
- }
-
- handlers->activated = 1;
-
- return 0;
-}
-
-int lsm330dlc_gyroscope_set_delay(struct smdk4x12_sensors_handlers *handlers, int64_t delay)
-{
- struct lsm330dlc_gyroscope_data *data;
- int rc;
-
- ALOGD("%s(%p, %" PRId64 ")", __func__, handlers, delay);
-
- if (handlers == NULL || handlers->data == NULL)
- return -EINVAL;
-
- data = (struct lsm330dlc_gyroscope_data *) handlers->data;
-
- rc = sysfs_value_write(data->path_delay, delay);
- if (rc < 0) {
- ALOGE("%s: Unable to write sysfs value", __func__);
- return -1;
- }
-
- return 0;
-}
-
-float lsm330dlc_gyroscope_convert(int value)
-{
- return value * (70.0f / 4000.0f) * (3.1415926535f / 180.0f);
-}
-
-int lsm330dlc_gyroscope_get_data(struct smdk4x12_sensors_handlers *handlers,
- struct sensors_event_t *event)
-{
- struct lsm330dlc_gyroscope_data *data;
- struct input_event input_event;
- int input_fd;
- int rc;
-
-// ALOGD("%s(%p, %p)", __func__, handlers, event);
-
- if (handlers == NULL || handlers->data == NULL || event == NULL)
- return -EINVAL;
-
- data = (struct lsm330dlc_gyroscope_data *) handlers->data;
-
- input_fd = handlers->poll_fd;
- if (input_fd < 0)
- return -EINVAL;
-
- memset(event, 0, sizeof(struct sensors_event_t));
- event->version = sizeof(struct sensors_event_t);
- event->sensor = handlers->handle;
- event->type = handlers->handle;
-
- event->gyro.x = data->gyro.x;
- event->gyro.y = data->gyro.y;
- event->gyro.z = data->gyro.z;
-
- event->gyro.status = SENSOR_STATUS_ACCURACY_MEDIUM;
-
- do {
- rc = read(input_fd, &input_event, sizeof(input_event));
- if (rc < (int) sizeof(input_event))
- break;
-
- if (input_event.type == EV_REL) {
- switch (input_event.code) {
- case REL_RX:
- event->gyro.x = lsm330dlc_gyroscope_convert(input_event.value);
- break;
- case REL_RY:
- event->gyro.y = lsm330dlc_gyroscope_convert(input_event.value);
- break;
- case REL_RZ:
- event->gyro.z = lsm330dlc_gyroscope_convert(input_event.value);
- break;
- default:
- continue;
- }
- } else if (input_event.type == EV_SYN) {
- if (input_event.code == SYN_REPORT)
- event->timestamp = input_timestamp(&input_event);
- }
- } while (input_event.type != EV_SYN);
-
- data->gyro.x = event->gyro.x;
- data->gyro.y = event->gyro.y;
- data->gyro.z = event->gyro.z;
-
- return 0;
-}
-
-struct smdk4x12_sensors_handlers lsm330dlc_gyroscope = {
- .name = "LSM330DLC Gyroscope",
- .handle = SENSOR_TYPE_GYROSCOPE,
- .init = lsm330dlc_gyroscope_init,
- .deinit = lsm330dlc_gyroscope_deinit,
- .activate = lsm330dlc_gyroscope_activate,
- .deactivate = lsm330dlc_gyroscope_deactivate,
- .set_delay = lsm330dlc_gyroscope_set_delay,
- .get_data = lsm330dlc_gyroscope_get_data,
- .activated = 0,
- .needed = 0,
- .poll_fd = -1,
- .data = NULL,
-};