Add display_get_state to remove dependency with enlightenment

Change-Id: I826e14589707f1a2e58c6105b7658ddbb4d8a108
Signed-off-by: lokilee73 <changjoo.lee@samsung.com>

diff --git a/hw/display/display.c b/hw/display/display.c
index 0eb19cb..a38ebd0 100755 (executable)
--- a/hw/display/display.c
+++ b/hw/display/display.c
@@ -31,6 +31,10 @@
 #define BACKLIGHT_PATH  "/sys/class/backlight/s6e8fa0"
 #endif
 
+#ifndef LCD_PATH
+#define LCD_PATH  "/sys/class/drm/card0"
+#endif
+
 #define MAX_BRIGHTNESS_TEMP 100
 
 static int brightness_temp;
@@ -100,6 +104,56 @@ static int display_set_brightness(int brightness)
        return 0;
 }
 
+static int display_get_state(enum display_state *state)
+{
+       int r;
+       char status[64];
+
+       // PANEL
+       r = sys_get_str(LCD_PATH"/card0-DSI-1/enabled", status, sizeof(status));
+       if (r < 0) {
+               _E("fail to get panel (errno:%d)", r);
+               return r;
+       }
+
+       if (!strncmp(status, "enabled", 7)) {
+               r = sys_get_str(LCD_PATH"/card0-DSI-1/dpms", status, sizeof(status));
+               if (r < 0) {
+                       _E("fail to get state (errno:%d)", r);
+                       return r;
+               }
+               goto out;
+       }
+
+       //HDMI
+       r = sys_get_str(LCD_PATH"/card0-HDMI-A-1/enabled", status, sizeof(status));
+       if (r < 0) {
+               _E("fail to get hdmi (errno:%d)", r);
+               return r;
+       }
+
+       if (!strncmp(status, "enabled", 7)) {
+               r = sys_get_str(LCD_PATH"/card0-HDMI-A-1/dpms", status, sizeof(status));
+               if (r < 0) {
+                       _E("fail to get state (errno:%d)", r);
+                       return r;
+               }
+       }
+
+       //Add here for more LCD device
+
+out:
+       //remap LCD state
+       if (!strncmp(status, "On", 2)) {
+               *state = DISPLAY_ON;
+       } else if (!strncmp(status, "Off", 3)) {
+               *state = DISPLAY_OFF;
+       } else
+               *state = -EINVAL;
+
+       return 0;
+}
+
 static int display_open(struct hw_info *info,
                const char *id, struct hw_common **common)
 {
@@ -116,6 +170,7 @@ static int display_open(struct hw_info *info,
        display_dev->get_max_brightness = display_get_max_brightness;
        display_dev->get_brightness = display_get_brightness;
        display_dev->set_brightness = display_set_brightness;
+       display_dev->get_state = display_get_state;
 
        *common = (struct hw_common *)display_dev;
        return 0;