ecore-drm: Add API function to return the edid of a given output

Summary: This adds a new API function to return the EDID string of a
given output.

@feature

Signed-off-by: Chris Michael <cp.michael@samsung.com>

src/lib/ecore_drm/Ecore_Drm.h

@@ -824,6 +824,18 @@ EAPI unsigned int ecore_drm_output_connector_type_get(Ecore_Drm_Output *output);
  */
 EAPI Eina_Bool ecore_drm_output_backlight_get(Ecore_Drm_Output *output);
 
+/**
+ * Get the edid of a given output
+ *
+ * @param output The Ecore_Drm_Output to get the backlight of
+ *
+ * @return A string representing the edid
+ *
+ * @ingroup Ecore_Drm_Output_Group
+ * @since 1.15
+ */
+EAPI char *ecore_drm_output_edid_get(Ecore_Drm_Output *output);
+
 #ifdef __cplusplus
 }
 #endif

src/lib/ecore_drm/ecore_drm_output.c

@@ -160,10 +160,13 @@ _ecore_drm_output_edid_find(Ecore_Drm_Output *output, drmModeConnector *conn)
                                            conn->prop_values[i]);
           }
         drmModeFreeProperty(prop);
+        if (blob) break;
      }
 
    if (!blob) return;
 
+   output->edid_blob = (char *)eina_memdup(blob->data, blob->length, 1);
+
    ret = _ecore_drm_output_edid_parse(output, blob->data, blob->length);
    if (!ret)
      {
@@ -1125,3 +1128,12 @@ ecore_drm_output_backlight_get(Ecore_Drm_Output *output)
    EINA_SAFETY_ON_NULL_RETURN_VAL(output, EINA_FALSE);
    return (output->backlight != NULL);
 }
+
+EAPI char *
+ecore_drm_output_edid_get(Ecore_Drm_Output *output)
+{
+   EINA_SAFETY_ON_NULL_RETURN_VAL(output, NULL);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(output->edid_blob, NULL);
+
+   return strdup(output->edid_blob);
+}

src/lib/ecore_drm/ecore_drm_private.h

@@ -131,6 +131,8 @@ struct _Ecore_Drm_Output
    Ecore_Drm_Output_Mode *current_mode;
    Eina_List *modes;
 
+   char *edid_blob;
+
    struct
      {
         char eisa[13];