Add target build for ESP8266 board.

JerryScript-DCO-1.0-Signed-off-by: SaeHie Park saehie.park@samsung.com

targets/esp8266/source/jerry_extapi.cpp

@@ -0,0 +1,195 @@
+/* Copyright 2015 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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 <stdio.h>
+
+#include "jerry-core/jerry.h"
+#include "jerry-core/jrt/jrt.h"  /* for JERRY_ERROR_MSG */
+#include "jerry_extapi.h"
+
+#include "native_esp8266.h"
+
+
+
+#ifndef MIN
+#define MIN(A,B) ((A)<(B)?(A):(B))
+#endif
+
+
+#define __UNSED__ __attribute__((unused))
+
+#define DELCARE_HANDLER(NAME) \
+static bool \
+NAME ## _handler (const jerry_api_object_t * function_obj_p __UNSED__, \
+                  const jerry_api_value_t *  this_p __UNSED__, \
+                  jerry_api_value_t *        ret_val_p __UNSED__, \
+                  const jerry_api_value_t    args_p[], \
+                  const jerry_api_length_t   args_cnt)
+
+#define REGISTER_HANDLER(NAME) \
+  register_native_function ( # NAME, NAME ## _handler)
+
+//-----------------------------------------------------------------------------
+
+DELCARE_HANDLER(assert) {
+  if (args_cnt == 1
+      && args_p[0].type == JERRY_API_DATA_TYPE_BOOLEAN
+      && args_p[0].v_bool == true)
+  {
+    printf (">> Jerry assert true\r\n");
+    return true;
+  }
+  JERRY_ERROR_MSG ("Script assertion failed\n");
+  exit (JERRY_STANDALONE_EXIT_CODE_FAIL);
+  return false;
+}
+
+
+DELCARE_HANDLER(print) {
+  jerry_api_length_t cc;
+
+  if (args_cnt)
+  {
+    printf(">> print(%d) :", (int)args_cnt);
+    for (cc=0; cc<args_cnt; cc++)
+    {
+      if (args_p[cc].type == JERRY_API_DATA_TYPE_STRING && args_p[cc].v_string)
+      {
+        static char buffer[128];
+        int length, maxlength;
+        length = -jerry_api_string_to_char_buffer (args_p[0].v_string, NULL, 0);
+        maxlength  = MIN(length, 126);
+        jerry_api_string_to_char_buffer (args_p[cc].v_string,
+                                         (jerry_api_char_t *) buffer,
+                                         maxlength);
+        *(buffer + length) = 0;
+        printf("[%s] ", buffer);
+      }
+      else
+      {
+        printf ("(%d) ", args_p[cc].type);
+      }
+    }
+    printf ("\r\n");
+  }
+  return true;
+}
+
+
+//-----------------------------------------------------------------------------
+
+DELCARE_HANDLER(gpio_dir) {
+  if (args_cnt < 2)
+  {
+    return false;
+  }
+
+  int port, value;
+  port = (int)JS_VALUE_TO_NUMBER (&args_p[0]);
+  value = (int)JS_VALUE_TO_NUMBER (&args_p[1]);
+
+  native_gpio_dir (port, value);
+
+  return true;
+} /* gpio_dir_handler */
+
+DELCARE_HANDLER(gpio_set) {
+  if (args_cnt < 2)
+  {
+    return false;
+  }
+
+  int port, value;
+  port = (int)JS_VALUE_TO_NUMBER (&args_p[0]);
+  value = (int)JS_VALUE_TO_NUMBER (&args_p[1]);
+
+  native_gpio_set (port, value);
+
+  return true;
+} /* gpio_dir_handler */
+
+
+DELCARE_HANDLER(gpio_get) {
+  if (args_cnt < 1)
+  {
+    return false;
+  }
+
+  int port, value;
+  port = (int)JS_VALUE_TO_NUMBER (&args_p[0]);
+
+  value = native_gpio_get (port) ? 1 : 0;
+
+  ret_val_p->type = JERRY_API_DATA_TYPE_FLOAT64;
+  ret_val_p->v_float64 = (double)value;
+
+  return true;
+} /* gpio_dir_handler */
+
+
+//-----------------------------------------------------------------------------
+static bool
+register_native_function (const char* name,
+                          jerry_external_handler_t handler)
+{
+  jerry_api_object_t *global_obj_p;
+  jerry_api_object_t *reg_func_p;
+  jerry_api_value_t reg_value;
+  bool bok;
+
+  global_obj_p = jerry_api_get_global ();
+  reg_func_p = jerry_api_create_external_function (handler);
+
+  if (!(reg_func_p != NULL
+                && jerry_api_is_function (reg_func_p)
+                && jerry_api_is_constructor (reg_func_p)))
+  {
+    printf ("!!! create_external_function failed !!!\r\n");
+    jerry_api_release_object (global_obj_p);
+    return false;
+  }
+
+  jerry_api_acquire_object (reg_func_p);
+  reg_value.type = JERRY_API_DATA_TYPE_OBJECT;
+  reg_value.v_object = reg_func_p;
+
+  bok = jerry_api_set_object_field_value (global_obj_p,
+                                          (jerry_api_char_t *)name,
+                                          &reg_value);
+
+  jerry_api_release_value (&reg_value);
+  jerry_api_release_object (reg_func_p);
+  jerry_api_release_object (global_obj_p);
+
+  if (!bok)
+  {
+    printf ("!!! register_native_function failed: [%s]\r\n", name);
+  }
+
+  return bok;
+}
+
+
+//-----------------------------------------------------------------------------
+
+void js_register_functions (void)
+{
+  REGISTER_HANDLER(assert);
+  REGISTER_HANDLER(print);
+  REGISTER_HANDLER(gpio_dir);
+  REGISTER_HANDLER(gpio_set);
+  REGISTER_HANDLER(gpio_get);
+}