Add auto brightness working position feature

an angle of 0~20 degrees from horizontality
 : auto brightness is working normally.
an angle over 20 degrees from horizontality
 : lcd does not get dark, but get bright by lux.

* based on that phone is lying on the floor.

Change-Id: I639a76f2438bd900290aedd47f01841519dcd36c

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 278920b..597d862 100755 (executable)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -152,7 +152,7 @@ CONFIGURE_FILE(${DEVICED_NAME}.pc.in ${DEVICED_NAME}.pc @ONLY)
 INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/${DEVICED_NAME}.pc DESTINATION lib/pkgconfig)
 
 ADD_EXECUTABLE(${PROJECT_NAME} ${SRCS})
-TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${pkgs_LDFLAGS} "-ldl" "-ludev")
+TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${pkgs_LDFLAGS} "-ldl" "-lm" "-ludev")
 INSTALL(TARGETS ${PROJECT_NAME} DESTINATION bin)
 
 INSTALL(FILES ${MOVINAND_FORMAT} DESTINATION bin)

diff --git a/src/display/lsensor.c b/src/display/lsensor.c
index ad5a826..f8e6599 100644 (file)
--- a/src/display/lsensor.c
+++ b/src/display/lsensor.c
@@ -19,6 +19,7 @@
 
 #include <stdbool.h>
 #include <stdio.h>
+#include <math.h>
 #include <limits.h>
 #include <unistd.h>
 #include <stdlib.h>
@@ -36,10 +37,16 @@
 #define SAMPLING_INTERVAL      2       /* 2 sec */
 #define MAX_FAULT              5
 
+#define RADIAN_VALUE           (57.2957)
+#define ROTATION_90            90
+#define WORKING_ANGLE_MIN      0
+#define WORKING_ANGLE_MAX      20
+
 static int (*prev_init_extention) (void *data);
 static int (*_default_action) (int);
 static Ecore_Timer *alc_timeout_id = 0;
-static int sf_handle = -1;
+static int light_handle = -1;
+static int accel_handle = -1;
 static int fault_count = 0;
 static int power_saving_display_stat = 0;
 static int sampling_interval = SAMPLING_INTERVAL;
@@ -58,7 +65,7 @@ static bool alc_handler(void* data)
                        ecore_timer_del(alc_timeout_id);
                alc_timeout_id = NULL;
        } else {
-               if (sf_get_data(sf_handle, LIGHT_BASE_DATA_SET, &light_data) < 0) {
+               if (sf_get_data(light_handle, LIGHT_BASE_DATA_SET, &light_data) < 0) {
                        fault_count++;
                } else {
                        if (light_data.values[0] < 0.0 || light_data.values[0] > 10.0) {
@@ -116,32 +123,66 @@ static int alc_action(int timeout)
 static int connect_sfsvc(void)
 {
        int sf_state = -1;
-       /* connect with sensor fw */
+
        _I("connect with sensor fw");
-       sf_handle = sf_connect(LIGHT_SENSOR);
-       if (sf_handle < 0) {
-               _E("sensor attach fail");
-               return -1;
+       /* light sensor */
+       light_handle = sf_connect(LIGHT_SENSOR);
+       if (light_handle < 0) {
+               _E("light sensor attach fail");
+               goto error;
+       }
+       sf_state = sf_start(light_handle, 0);
+       if (sf_state < 0) {
+               _E("light sensor attach fail");
+               sf_disconnect(light_handle);
+               light_handle = -1;
+               goto error;
+       }
+       /* accelerometer sensor */
+       accel_handle = sf_connect(ACCELEROMETER_SENSOR);
+       if (accel_handle < 0) {
+               _E("accelerometer sensor attach fail");
+               goto error;
        }
-       sf_state = sf_start(sf_handle, 0);
+       sf_state = sf_start(accel_handle, 0);
        if (sf_state < 0) {
-               _E("sensor attach fail");
-               sf_disconnect(sf_handle);
-               sf_handle = -1;
-               return -2;
+               _E("accelerometer sensor attach fail");
+               sf_disconnect(accel_handle);
+               light_handle = -1;
+               goto error;
        }
+
        fault_count = 0;
        return 0;
+
+error:
+       if (light_handle >= 0) {
+               sf_stop(light_handle);
+               sf_disconnect(light_handle);
+               light_handle = -1;
+       }
+       if (accel_handle >= 0) {
+               sf_stop(accel_handle);
+               sf_disconnect(accel_handle);
+               accel_handle = -1;
+       }
+       return -EIO;
 }
 
 static int disconnect_sfsvc(void)
 {
        _I("disconnect with sensor fw");
-       if(sf_handle >= 0)
-       {
-               sf_stop(sf_handle);
-               sf_disconnect(sf_handle);
-               sf_handle = -1;
+       /* light sensor*/
+       if(light_handle >= 0) {
+               sf_stop(light_handle);
+               sf_disconnect(light_handle);
+               light_handle = -1;
+       }
+       /* accelerometer sensor*/
+       if(accel_handle >= 0) {
+               sf_stop(accel_handle);
+               sf_disconnect(accel_handle);
+               accel_handle = -1;
        }
 
        if (_default_action != NULL) {