From: Jinhyung Choi <jinhyung2.choi@samsung.com>
Date: Tue, 23 Jun 2015 05:42:36 +0000 (+0900)
Subject: sensor: support angular rotation
X-Git-Tag: Tizen_Studio_1.3_Release_p2.3.2~350
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=57c7db70c767669beb5ed98ef6264285dac41f9b;p=sdk%2Femulator%2Fqemu.git

sensor: support angular rotation

Change-Id: I38730c2c82f0c9ab3eb95774a467828716851894
Signed-off-by: Jinhyung Choi <jinhyung2.choi@samsung.com>
---

diff --git a/tizen/src/ecs/ecs.h b/tizen/src/ecs/ecs.h
index 7bf2af621b..a59821dd60 100644
--- a/tizen/src/ecs/ecs.h
+++ b/tizen/src/ecs/ecs.h
@@ -238,6 +238,7 @@ void send_target_image_information(ECS_Client* ccli);
 /* request */
 int accel_min_max(double value);
 void req_set_sensor_accel(int x, int y, int z);
+void req_set_sensor_accel_angle(int angle);
 void set_injector_data(const char* data);
 
 /* Monitor */
diff --git a/tizen/src/ecs/ecs_sensor.c b/tizen/src/ecs/ecs_sensor.c
index 4be4cea0c0..707f445abd 100644
--- a/tizen/src/ecs/ecs_sensor.c
+++ b/tizen/src/ecs/ecs_sensor.c
@@ -35,6 +35,8 @@
 //#include "qemu-config.h"
 //#include "qemu-timer.h"
 
+#include <math.h>
+
 #include "ecs.h"
 #include "hw/virtio/maru_virtio_sensor.h"
 #include "hw/virtio/maru_virtio_power.h"
@@ -49,6 +51,9 @@ MULTI_DEBUG_CHANNEL(qemu, ecs);
 
 #define ACCEL_MAX       1961330
 
+#define SENSOR_ANGLE_MIN    0
+#define SENSOR_ANGLE_MAX    360
+
 static int parse_val(const char *buff, unsigned char data, char *parsbuf)
 {
     int count=0;
@@ -108,6 +113,68 @@ void req_set_sensor_accel(int x, int y, int z)
     set_sensor_accel(tmp, strlen(tmp));
 }
 
+static int convert_abs_angle(int angle) {
+    if (angle < SENSOR_ANGLE_MIN) {
+        return convert_abs_angle(angle + SENSOR_ANGLE_MAX);
+    } else if (angle > SENSOR_ANGLE_MAX) {
+        return convert_abs_angle(angle - SENSOR_ANGLE_MAX);
+    } else {
+        return angle;
+    }
+}
+
+static int convert_accel(int angle, bool x_axis)
+{
+    double acc;
+    int value;
+    double rad = angle * M_PI / 180;
+
+    if (x_axis) {
+        acc = -sin(rad) * 980665;
+    } else {
+        acc = cos(rad) * 980665;
+    }
+    LOG_TRACE("original accel value int : '%e'\n", acc);
+
+    value = (int)acc;
+    LOG_TRACE("convert accel value int : '%d'\n", value);
+
+    if (value == 0) {
+        value = 100;
+    }
+
+    return value;
+}
+
+void req_set_sensor_accel_angle(int angle)
+{
+    int degree;
+    int accel_x = 0;
+    int accel_y = 0;
+    char accel [TEMP_BUF_SIZE];
+
+    if (angle < SENSOR_ANGLE_MAX * -3 || angle > SENSOR_ANGLE_MAX * 3) {
+        LOG_SEVERE("wrong input degree : %d.\n", angle);
+        return;
+    }
+
+    LOG_TRACE("input degree : '%d'\n", angle);
+
+    degree = convert_abs_angle(angle);
+    LOG_TRACE("converted degree : '%d'\n", degree);
+
+    accel_x = convert_accel(degree, true);
+    LOG_TRACE("accel_x: '%d'\n", accel_x);
+
+    accel_y = convert_accel(degree, false);
+    LOG_TRACE("accel_y: '%d'\n", accel_y);
+
+    snprintf(accel, sizeof(accel), "%d,%d,%d", accel_x, accel_y, 100);
+    LOG_INFO("rotation %d degree with setting: %s\n", angle, accel);
+
+    set_sensor_accel(accel, strlen(accel));
+}
+
 static void _req_set_sensor_accel(int len, const char* data)
 {
     char tmp[TEMP_BUF_SIZE];