From ff6ebfa1c99bc4dc37f5e83d280ef9896059a9d8 Mon Sep 17 00:00:00 2001
From: Andrea Gilardoni <a.gilardoni@arduino.cc>
Date: Thu, 9 Jan 2025 09:57:12 +0100
Subject: [PATCH] enabling hci through spi commands

---
 src/utility/HCINinaSpiTransport.cpp | 64 +++++++++++++++++++++++++++++
 src/utility/HCINinaSpiTransport.h   | 32 +++++++++++++++
 2 files changed, 96 insertions(+)
 create mode 100644 src/utility/HCINinaSpiTransport.cpp
 create mode 100644 src/utility/HCINinaSpiTransport.h

diff --git a/src/utility/HCINinaSpiTransport.cpp b/src/utility/HCINinaSpiTransport.cpp
new file mode 100644
index 00000000..38d46766
--- /dev/null
+++ b/src/utility/HCINinaSpiTransport.cpp
@@ -0,0 +1,64 @@
+/*
+  This file is part of the ArduinoBLE library.
+
+  Copyright (c) 2024 Arduino SA
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+#if defined(ARDUINO_AVR_UNO_WIFI_REV2) || defined(ARDUINO_SAMD_MKRWIFI1010) || defined(ARDUINO_SAMD_NANO_33_IOT) || defined(TARGET_NANO_RP2040_CONNECT)
+#include "HCINinaSpiTransport.h"
+#include <WiFiNINA.h>
+
+int HCINinaSpiTransportClass::begin()
+{
+  WiFiDrv::wifiDriverInit();
+  return WiFiDrv::bleBegin();
+}
+
+void HCINinaSpiTransportClass::end()
+{
+  WiFiDrv::bleEnd();
+}
+
+void HCINinaSpiTransportClass::wait(unsigned long timeout)
+{
+  for (unsigned long start = millis(); (millis() - start) < timeout;) {
+    if (available()) {
+      break;
+    }
+  }
+}
+
+int HCINinaSpiTransportClass::available()
+{
+  return WiFiDrv::bleAvailable();
+}
+
+int HCINinaSpiTransportClass::peek()
+{
+  int res=-1;
+  WiFiDrv::blePeek((uint8_t*)&res, 1); // read a single byte, if nothing is returned we return -1
+
+  return res;
+}
+
+int HCINinaSpiTransportClass::read()
+{
+  int res=-1;
+  WiFiDrv::bleRead((uint8_t*)&res, 1); // read a single byte, if nothing is returned we return -1
+
+  return res;
+}
+
+size_t HCINinaSpiTransportClass::write(const uint8_t* data, size_t length)
+{
+  return WiFiDrv::bleWrite(data, length);
+}
+
+HCINinaSpiTransportClass HCINinaSpiTransport;
+HCITransportInterface& HCITransport = HCINinaSpiTransport;
+
+#endif
diff --git a/src/utility/HCINinaSpiTransport.h b/src/utility/HCINinaSpiTransport.h
new file mode 100644
index 00000000..55cb1068
--- /dev/null
+++ b/src/utility/HCINinaSpiTransport.h
@@ -0,0 +1,32 @@
+/*
+  This file is part of the ArduinoBLE library.
+
+  Copyright (c) 2024 Arduino SA
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
+*/
+
+#ifndef _HCI_NINA_SPI_TRANSPORT_H_
+#define _HCI_NINA_SPI_TRANSPORT_H_
+
+#include "HCITransport.h"
+
+class HCINinaSpiTransportClass : public HCITransportInterface {
+public:
+  HCINinaSpiTransportClass() {}
+
+  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);
+};
+
+#endif