Separate targets into os and baremetal-sdk parts (#4842)

JerryScript-DCO-1.0-Signed-off-by: Roland Takacs roland.takacs@h-lab.eu
2021-12-06 11:02:52 +01:00
parent 9860d66a56
commit af297bc578
110 changed files with 119 additions and 85 deletions
@@ -0,0 +1,327 @@
+/* Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * 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 "jerryscript-mbed-drivers/I2C-js.h"
+
+#include "jerryscript-mbed-library-registry/wrap_tools.h"
+#include "jerryscript-mbed-util/logging.h"
+#include "mbed.h"
+
+/**
+ * I2C#destructor
+ *
+ * Called if/when the I2C object is GC'ed.
+ */
+void
+NAME_FOR_CLASS_NATIVE_DESTRUCTOR (I2C) (void *void_ptr, jerry_object_native_info_t *info_p)
+{
+  (void) info_p;
+  delete static_cast<I2C *> (void_ptr);
+}
+
+/**
+ * Type infomation of the native I2C pointer
+ *
+ * Set I2C#destructor as the free callback.
+ */
+static const jerry_object_native_info_t native_obj_type_info = { .free_cb = NAME_FOR_CLASS_NATIVE_DESTRUCTOR (I2C) };
+
+/**
+ * I2C#frequency (native JavaScript method)
+ *
+ * Set the frequency of the I2C bus.
+ *
+ * @param frequency New I2C Frequency
+ */
+DECLARE_CLASS_FUNCTION (I2C, frequency)
+{
+  CHECK_ARGUMENT_COUNT (I2C, frequency, (args_count == 1));
+  CHECK_ARGUMENT_TYPE_ALWAYS (I2C, frequency, 0, number);
+
+  // Unwrap native I2C object
+  void *void_ptr = jerry_object_get_native_ptr (call_info_p->this_value, &native_obj_type_info);
+
+  if (void_ptr == NULL)
+  {
+    return jerry_throw_sz (JERRY_ERROR_TYPE, "Failed to get native I2C pointer");
+  }
+
+  I2C *native_ptr = static_cast<I2C *> (void_ptr);
+
+  int hz = jerry_value_as_number (args[0]);
+  native_ptr->frequency (hz);
+
+  return jerry_undefined ();
+}
+
+/**
+ * I2C#read (native JavaScript method)
+ *
+ * Read data from the I2C bus.
+ *
+ * @overload I2C#read(int)
+ * Read a single byte from the I2C bus
+ *
+ * @param ack indicates if the byte is to be acknowledged (1 => acknowledge)
+ *
+ * @returns array: Data read from the I2C bus
+ *
+ * @overload I2C#read(int, array, int)
+ * Read a series of bytes from the I2C bus
+ *
+ * @param address I2C address to read from
+ * @param data Array to read into
+ * @param length Length of data to read
+ *
+ * @returns array: Data read from the I2C bus
+ */
+DECLARE_CLASS_FUNCTION (I2C, read)
+{
+  CHECK_ARGUMENT_COUNT (I2C, read, (args_count == 1 || args_count == 3 || args_count == 4));
+
+  if (args_count == 1)
+  {
+    CHECK_ARGUMENT_TYPE_ALWAYS (I2C, read, 0, number);
+    void *void_ptr = jerry_object_get_native_ptr (call_info_p->this_value, &native_obj_type_info);
+
+    if (void_ptr == NULL)
+    {
+      return jerry_throw_sz (JERRY_ERROR_TYPE, "Failed to get native I2C pointer");
+    }
+
+    I2C *native_ptr = static_cast<I2C *> (void_ptr);
+
+    int data = jerry_value_as_number (args[0]);
+    int result = native_ptr->read (data);
+
+    return jerry_number (result);
+  }
+  else
+  {
+    CHECK_ARGUMENT_TYPE_ALWAYS (I2C, read, 0, number);
+    CHECK_ARGUMENT_TYPE_ALWAYS (I2C, read, 1, array);
+    CHECK_ARGUMENT_TYPE_ALWAYS (I2C, read, 2, number);
+
+    CHECK_ARGUMENT_TYPE_ON_CONDITION (I2C, read, 3, boolean, (args_count == 4));
+
+    void *void_ptr = jerry_object_get_native_ptr (call_info_p->this_value, &native_obj_type_info);
+
+    if (void_ptr == NULL)
+    {
+      return jerry_throw_sz (JERRY_ERROR_TYPE, "Failed to get native I2C pointer");
+    }
+
+    I2C *native_ptr = static_cast<I2C *> (void_ptr);
+
+    const uint32_t data_len = jerry_array_length (args[1]);
+
+    int address = jerry_value_as_number (args[0]);
+    int length = jerry_value_as_number (args[2]);
+
+    char *data = new char[data_len];
+
+    bool repeated = false;
+    if (args_count == 4)
+    {
+      repeated = jerry_value_is_true (args[3]);
+    }
+
+    int result = native_ptr->read (address, data, length, repeated);
+
+    jerry_value_t out_array = jerry_array (data_len);
+
+    for (uint32_t i = 0; i < data_len; i++)
+    {
+      jerry_value_t val = jerry_number (double (data[i]));
+      jerry_value_free (jerry_object_set_index (out_array, i, val));
+      jerry_value_free (val);
+    }
+
+    delete[] data;
+
+    if (result == 0)
+    {
+      // ACK
+      return out_array;
+    }
+    else
+    {
+      // NACK
+      const char *error_msg = "NACK received from I2C bus";
+
+      jerry_value_free (out_array);
+      return jerry_throw_sz (JERRY_ERROR_COMMON, error_msg);
+    }
+  }
+}
+
+/**
+ * I2C#write (native JavaScript method)
+ *
+ * @overload I2C#write(int)
+ * Write a single byte to the I2C bus
+ *
+ * @param data Data byte to write to the I2C bus
+ *
+ * @returns 1 on success, 0 on failure
+ *
+ * @overload I2C#write(int, array, int, bool)
+ * Write an array of data to a certain address on the I2C bus
+ *
+ * @param address 8-bit I2C slave address
+ * @param data Array of bytes to send
+ * @param length Length of data to write
+ * @param repeated (optional) If true, do not send stop at end.
+ *
+ * @returns 0 on success, non-0 on failure
+ */
+DECLARE_CLASS_FUNCTION (I2C, write)
+{
+  CHECK_ARGUMENT_COUNT (I2C, write, (args_count == 1 || args_count == 3 || args_count == 4));
+
+  if (args_count == 1)
+  {
+    CHECK_ARGUMENT_TYPE_ALWAYS (I2C, write, 0, number);
+
+    // Extract native I2C object
+    void *void_ptr = jerry_object_get_native_ptr (call_info_p->this_value, &native_obj_type_info);
+
+    if (void_ptr == NULL)
+    {
+      return jerry_throw_sz (JERRY_ERROR_TYPE, "Failed to get native I2C pointer");
+    }
+
+    I2C *native_ptr = static_cast<I2C *> (void_ptr);
+
+    // Unwrap arguments
+    int data = jerry_value_as_number (args[0]);
+
+    int result = native_ptr->write (data);
+    return jerry_number (result);
+  }
+  else
+  {
+    // 3 or 4
+    CHECK_ARGUMENT_TYPE_ALWAYS (I2C, write, 0, number);
+    CHECK_ARGUMENT_TYPE_ALWAYS (I2C, write, 1, array);
+    CHECK_ARGUMENT_TYPE_ALWAYS (I2C, write, 2, number);
+    CHECK_ARGUMENT_TYPE_ON_CONDITION (I2C, write, 3, boolean, (args_count == 4));
+
+    // Extract native I2C object
+    void *void_ptr = jerry_object_get_native_ptr (call_info_p->this_value, &native_obj_type_info);
+
+    if (void_ptr != NULL)
+    {
+      return jerry_throw_sz (JERRY_ERROR_TYPE, "Failed to get native I2C pointer");
+    }
+
+    I2C *native_ptr = static_cast<I2C *> (void_ptr);
+
+    // Unwrap arguments
+    int address = jerry_value_as_number (args[0]);
+    const uint32_t data_len = jerry_array_length (args[1]);
+    int length = jerry_value_as_number (args[2]);
+    bool repeated = args_count == 4 && jerry_value_is_true (args[3]);
+
+    // Construct data byte array
+    char *data = new char[data_len];
+    for (uint32_t i = 0; i < data_len; i++)
+    {
+      data[i] = jerry_value_as_number (jerry_object_get_index (args[1], i));
+    }
+
+    int result = native_ptr->write (address, data, length, repeated);
+
+    // free dynamically allocated resources
+    delete[] data;
+
+    return jerry_number (result);
+  }
+}
+
+/**
+ * I2C#start (native JavaScript method)
+ *
+ * Creates a start condition on the I2C bus.
+ */
+DECLARE_CLASS_FUNCTION (I2C, start)
+{
+  CHECK_ARGUMENT_COUNT (I2C, start, (args_count == 0));
+
+  // Extract native I2C object
+  void *void_ptr = jerry_object_get_native_ptr (call_info_p->this_value, &native_obj_type_info);
+
+  if (void_ptr == NULL)
+  {
+    return jerry_throw_sz (JERRY_ERROR_TYPE, "Failed to get native I2C pointer");
+  }
+
+  I2C *native_ptr = static_cast<I2C *> (void_ptr);
+
+  native_ptr->start ();
+  return jerry_undefined ();
+}
+
+/**
+ * I2C#stop (native JavaScript method)
+ *
+ * Creates a stop condition on the I2C bus.
+ */
+DECLARE_CLASS_FUNCTION (I2C, stop)
+{
+  CHECK_ARGUMENT_COUNT (I2C, stop, (args_count == 0));
+
+  // Extract native I2C object
+  void *void_ptr = jerry_object_get_native_ptr (call_info_p->this_value, &native_obj_type_info);
+
+  if (void_ptr == NULL)
+  {
+    return jerry_throw_sz (JERRY_ERROR_TYPE, "Failed to get native I2C pointer");
+  }
+
+  I2C *native_ptr = static_cast<I2C *> (void_ptr);
+
+  native_ptr->stop ();
+  return jerry_undefined ();
+}
+
+/**
+ * I2C (native JavaScript constructor)
+ *
+ * @param sda mbed pin for I2C data
+ * @param scl mbed pin for I2C clock
+ * @returns a JavaScript object representing the I2C bus.
+ */
+DECLARE_CLASS_CONSTRUCTOR (I2C)
+{
+  CHECK_ARGUMENT_COUNT (I2C, __constructor, (args_count == 2));
+  CHECK_ARGUMENT_TYPE_ALWAYS (I2C, __constructor, 0, number);
+  CHECK_ARGUMENT_TYPE_ALWAYS (I2C, __constructor, 1, number);
+
+  int sda = jerry_value_as_number (args[0]);
+  int scl = jerry_value_as_number (args[1]);
+
+  I2C *native_ptr = new I2C ((PinName) sda, (PinName) scl);
+
+  jerry_value_t js_object = jerry_object ();
+  jerry_object_set_native_ptr (js_object, &native_obj_type_info, native_ptr);
+
+  ATTACH_CLASS_FUNCTION (js_object, I2C, frequency);
+  ATTACH_CLASS_FUNCTION (js_object, I2C, read);
+  ATTACH_CLASS_FUNCTION (js_object, I2C, write);
+  ATTACH_CLASS_FUNCTION (js_object, I2C, start);
+  ATTACH_CLASS_FUNCTION (js_object, I2C, stop);
+
+  return js_object;
+}