Add Zephyr core support.

Author: facchinm

library.properties

@@ -6,5 +6,5 @@ sentence=Enables Bluetooth® Low Energy connectivity on the Arduino MKR WiFi 101
 paragraph=This library supports creating a Bluetooth® Low Energy peripheral & central mode.
 category=Communication
 url=https://www.arduino.cc/en/Reference/ArduinoBLE
-architectures=samd,megaavr,mbed,apollo3,mbed_nano,mbed_portenta,mbed_nicla,esp32,mbed_giga,renesas,renesas_portenta,mbed_opta,renesas_uno,silabs
+architectures=*
 includes=ArduinoBLE.h

src/local/BLELocalDevice.cpp

@@ -25,6 +25,14 @@
 
 #include "BLELocalDevice.h"
 
+#ifdef __ZEPHYR__
+#undef ARDUINO_PORTENTA_H7_M7
+#undef ARDUINO_OPTA
+#undef ARDUINO_GIGA
+#undef ARDUINO_NICLA_VISION
+#undef ARDUINO_PORTENTA_C33
+#endif
+
 #if defined(PORTENTA_H7_PINS) || defined(ARDUINO_PORTENTA_H7_M7) || defined(ARDUINO_OPTA)
 #ifndef BT_REG_ON
 #define BT_REG_ON PJ_12

src/utility/HCIUartTransport.cpp

@@ -17,7 +17,7 @@
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-#if !defined(ARDUINO_ARCH_MBED) && !defined(ESP32) && !defined(ARDUINO_SILABS) && !defined(ARDUINO_UNOR4_WIFI) || defined(TARGET_NANO_RP2040_CONNECT) //|| defined(CORE_CM4)
+#if !defined(ARDUINO_ARCH_MBED) && !defined(__ZEPHYR__) && !defined(ESP32) && !defined(ARDUINO_SILABS) && !defined(ARDUINO_UNOR4_WIFI) && !defined(__ZEPHYR__) || defined(TARGET_NANO_RP2040_CONNECT) //|| defined(CORE_CM4)
 
 #include "HCIUartTransport.h"
 

src/utility/HCIVirtualTransportZephyr.cpp

@@ -0,0 +1,120 @@
+/*
+  This file is part of the ArduinoBLE library.
+  Copyright (c) 2018-2025 Arduino SA. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#if defined(__ZEPHYR__)
+
+#include "HCIVirtualTransportZephyr.h"
+
+#include <zephyr/bluetooth/hci.h>
+#include <zephyr/bluetooth/buf.h>
+#include <zephyr/bluetooth/hci_vs.h>
+
+static K_FIFO_DEFINE(rx_queue);
+struct k_fifo* __rx_queue = &rx_queue;
+extern "C" int bt_h4_vnd_setup(const struct device *dev);
+
+HCIVirtualTransportZephyrClass::HCIVirtualTransportZephyrClass() {
+
+}
+
+HCIVirtualTransportZephyrClass::~HCIVirtualTransportZephyrClass() {
+
+}
+
+int HCIVirtualTransportZephyrClass::begin() {
+  bt_enable_raw(__rx_queue);
+
+#if CONFIG_BT_HCI_SETUP
+  const struct device *uart = DEVICE_DT_GET(DT_PARENT(DT_CHOSEN(zephyr_bt_hci)));
+  if (!uart) {
+    return 0;
+  }
+
+  if (bt_h4_vnd_setup(uart)) {
+    return 0;
+  }
+#endif /* CONFIG_BT_HCI_SETUP */
+
+  rxbuf.clear();
+
+  return 1;
+}
+
+void HCIVirtualTransportZephyrClass::end() {
+
+}
+
+void HCIVirtualTransportZephyrClass::wait(unsigned long timeout) {
+  delay(timeout);
+}
+
+int HCIVirtualTransportZephyrClass::available() {
+  static struct net_buf *buf = NULL;
+
+  if (rxbuf.available()) {
+    return rxbuf.available();
+  }
+
+  buf = (struct net_buf *) k_fifo_get(__rx_queue, K_MSEC(10));
+  if (!buf) {
+    return 0;
+  }
+
+  for (int i=0; i<buf->len; i++) {
+    rxbuf.store_char((uint8_t)buf->data[i]);
+  }
+
+  net_buf_pull(buf, buf->len);
+  if (!buf->len) {
+    net_buf_unref(buf);
+    buf = NULL;
+  }
+
+  return rxbuf.available();
+}
+
+int HCIVirtualTransportZephyrClass::peek() {
+  return -1;
+}
+
+int HCIVirtualTransportZephyrClass::read() {
+  if (rxbuf.available()) {
+    return rxbuf.read_char();
+  }
+
+  return -1;
+}
+
+size_t HCIVirtualTransportZephyrClass::write(const uint8_t* data, size_t length) {
+  enum bt_buf_type type = bt_buf_type_from_h4(data[0], BT_BUF_OUT);
+  struct net_buf *buf = bt_buf_get_tx(type, K_FOREVER, &data[1], length - 1);
+
+  if (buf) {
+    auto err = bt_send(buf);
+    if (err) {
+    	net_buf_unref(buf);
+    }
+    return length;
+  }
+  return 0;
+}
+
+HCIVirtualTransportZephyrClass HCIVirtualTransportZephyr;
+HCITransportInterface& HCITransport = HCIVirtualTransportZephyr;
+#endif

src/utility/HCIVirtualTransportZephyr.h

@@ -0,0 +1,49 @@
+/*
+  This file is part of the ArduinoBLE library.
+  Copyright (c) 2018-2025 Arduino SA. All rights reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "HCITransport.h"
+#include "api/RingBuffer.h"
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+extern "C" {
+#include <zephyr/bluetooth/hci_raw.h>
+#include <zephyr/bluetooth/buf.h>
+}
+
+class HCIVirtualTransportZephyrClass : public HCITransportInterface {
+public:
+  HCIVirtualTransportZephyrClass();
+  virtual ~HCIVirtualTransportZephyrClass();
+
+  virtual int begin();
+  virtual void end();
+
+  virtual void wait(unsigned long timeout);
+
+  virtual int available();
+  virtual int peek();
+  virtual int read();
+
+  virtual size_t write(const uint8_t* data, size_t length);
+
+private:
+  RingBufferN<258> rxbuf;
+};