Implemented APIs for the tilt sensor

Change-Id: Iae5d8e69d183e4d5860f4e15279997d5b9788cde

6 files changed, 132 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 760d11a..01102f7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -52,6 +52,7 @@ ADD_EXECUTABLE(${PROJECT_NAME}
 	${PROJECT_ROOT_DIR}/src/resource/resource_vibration_sensor.c
 	${PROJECT_ROOT_DIR}/src/resource/resource_flame_sensor.c
 	${PROJECT_ROOT_DIR}/src/resource/resource_sound_detection_sensor.c
+	${PROJECT_ROOT_DIR}/src/resource/resource_tilt_sensor.c
 )
 
 TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${pkgs_LDFLAGS} -lm)
diff --git a/inc/resource.h b/inc/resource.h
index ac016b6..cc7fb4b 100644
--- a/inc/resource.h
+++ b/inc/resource.h
@@ -34,5 +34,6 @@
 #include "resource/resource_vibration_sensor.h"
 #include "resource/resource_flame_sensor.h"
 #include "resource/resource_sound_detection_sensor.h"
+#include "resource/resource_tilt_sensor.h"
 
 #endif /* __POSITION_FINDER_RESOURCE_H__ */
diff --git a/inc/resource/resource_tilt_sensor.h b/inc/resource/resource_tilt_sensor.h
new file mode 100644
index 0000000..20d8403
--- /dev/null
+++ b/inc/resource/resource_tilt_sensor.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ *
+ * Contact: Jin Yoon <jinny.yoon@samsung.com>
+ *          Geunsun Lee <gs86.lee@samsung.com>
+ *          Eunyoung Lee <ey928.lee@samsung.com>
+ *          Junkyu Han <junkyu.han@samsung.com>
+ *
+ * Licensed under the Flora License, Version 1.1 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://floralicense.org/license/
+ *
+ * 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.
+ */
+
+#ifndef __POSITION_FINDER_RESOURCE_TILT_SENSOR_H__
+#define __POSITION_FINDER_RESOURCE_TILT_SENSOR_H__
+
+/**
+ * @brief Reads the value of gpio connected tilt sensor(SZH-EK084).
+ * @param[in] pin_num The number of the gpio pin connected to the tilt sensor
+ * @param[out] out_value The vaule of the gpio (zero or non-zero)
+ * @return 0 on success, otherwise a negative error value
+ *
+ * @see If the gpio pin is not open, creates gpio handle before reading the value of gpio.
+ */
+extern int resource_read_tilt_sensor(int pin_num, int *out_value);
+
+#endif /* __POSITION_FINDER_RESOURCE_TILT_SENSOR_H__ */
diff --git a/inc/resource/resource_tilt_sensor_internal.h b/inc/resource/resource_tilt_sensor_internal.h
new file mode 100644
index 0000000..4468929
--- /dev/null
+++ b/inc/resource/resource_tilt_sensor_internal.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ *
+ * Contact: Jin Yoon <jinny.yoon@samsung.com>
+ *          Geunsun Lee <gs86.lee@samsung.com>
+ *          Eunyoung Lee <ey928.lee@samsung.com>
+ *          Junkyu Han <junkyu.han@samsung.com>
+ *
+ * Licensed under the Flora License, Version 1.1 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://floralicense.org/license/
+ *
+ * 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.
+ */
+
+#ifndef __POSITION_FINDER_RESOURCE_TILT_SENSOR_INTERNAL_H__
+#define __POSITION_FINDER_RESOURCE_TILT_SENSOR_INTERNAL_H__
+
+/**
+ * @brief Releases the gpio handle and changes the gpio pin state to the close(0).
+ * @param[in] pin_num The number of the gpio pin connected to the tilt sensor
+ */
+extern void resource_close_tilt_sensor(int pin_num);
+
+#endif /* __POSITION_FINDER_RESOURCE_TILT_SENSOR_INTERNAL_H__ */
diff --git a/inc/resource_internal.h b/inc/resource_internal.h
index c5790dc..a1ce1eb 100644
--- a/inc/resource_internal.h
+++ b/inc/resource_internal.h
@@ -33,6 +33,7 @@
 #include "resource/resource_vibration_sensor_internal.h"
 #include "resource/resource_flame_sensor_internal.h"
 #include "resource/resource_sound_detection_sensor_internal.h"
+#include "resource/resource_tilt_sensor_internal.h"
 
 #define PIN_MAX 40
 
diff --git a/src/resource/resource_tilt_sensor.c b/src/resource/resource_tilt_sensor.c
new file mode 100644
index 0000000..5a946c4
--- /dev/null
+++ b/src/resource/resource_tilt_sensor.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd.
+ *
+ * Contact: Jin Yoon <jinny.yoon@samsung.com>
+ *          Geunsun Lee <gs86.lee@samsung.com>
+ *          Eunyoung Lee <ey928.lee@samsung.com>
+ *          Junkyu Han <junkyu.han@samsung.com>
+ *
+ * Licensed under the Flora License, Version 1.1 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://floralicense.org/license/
+ *
+ * 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 <stdlib.h>
+#include <unistd.h>
+#include <peripheral_io.h>
+#include <sys/time.h>
+
+#include "log.h"
+#include "resource_internal.h"
+
+void resource_close_tilt_sensor(int pin_num)
+{
+	if (!resource_get_info(pin_num)->opened) return;
+
+	_I("Infrared Motion Sensor is finishing...");
+	peripheral_gpio_close(resource_get_info(pin_num)->sensor_h);
+	resource_get_info(pin_num)->opened = 0;
+}
+
+int resource_read_tilt_sensor(int pin_num, int *out_value)
+{
+	int ret = PERIPHERAL_ERROR_NONE;
+
+	if (!resource_get_info(pin_num)->opened) {
+		ret = peripheral_gpio_open(pin_num, &resource_get_info(pin_num)->sensor_h);
+		retv_if(!resource_get_info(pin_num)->sensor_h, -1);
+
+		ret = peripheral_gpio_set_direction(resource_get_info(pin_num)->sensor_h, PERIPHERAL_GPIO_DIRECTION_IN);
+		retv_if(ret != 0, -1);
+
+		resource_get_info(pin_num)->opened = 1;
+		resource_get_info(pin_num)->close = resource_close_tilt_sensor;
+	}
+
+	/**
+	 * This model(SZH-EK084) normally outputs 1, and outputs 0 as out_value when the sensor is tilted.
+	 */
+	ret = peripheral_gpio_read(resource_get_info(pin_num)->sensor_h, out_value);
+	retv_if(ret < 0, -1);
+
+	*out_value = !*out_value;
+
+	return 0;
+}