zephyr raw hci porting

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(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 +1,111 @@
+/*
+  This file is part of the ArduinoBLE library.
+  Copyright (c) 2018 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"
+
+extern "C" struct k_fifo* __rx_queue;
+
+HCIVirtualTransportZephyrClass::HCIVirtualTransportZephyrClass()
+{
+}
+
+HCIVirtualTransportZephyrClass::~HCIVirtualTransportZephyrClass()
+{
+}
+
+extern "C" void set_public_address(struct k_fifo *rx_queue);
+int HCIVirtualTransportZephyrClass::begin()
+{
+  bt_enable_raw(__rx_queue);
+  //bt_hci_raw_set_mode(BT_HCI_RAW_MODE_PASSTHROUGH);
+  set_public_address(__rx_queue);
+  bt_hci_raw_set_mode(BT_HCI_RAW_MODE_H4);
+  rxbuf.clear();
+  return 1;
+}
+
+void HCIVirtualTransportZephyrClass::end()
+{
+}
+
+void HCIVirtualTransportZephyrClass::wait(unsigned long timeout)
+{
+  delay(timeout);
+}
+
+int HCIVirtualTransportZephyrClass::available()
+{
+  if (rxbuf.available()) {
+    return rxbuf.available();
+  }
+
+  static struct net_buf *buf;
+	buf = net_buf_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();
+}
+
+// never called
+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)
+{
+  struct net_buf *__net_buf = bt_buf_get_tx(BT_BUF_H4, K_MSEC(10), data, length);
+  if (__net_buf) {
+    auto err = bt_send(__net_buf);
+		if (err) {
+			net_buf_unref(__net_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 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;
+};

src/utility/HCIVirtualZephyrMacros.c

@@ -0,0 +1,43 @@
+#if defined(__ZEPHYR__)
+
+#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;
+
+
+// from https://github.com/thomasstenersen/sdk-zephyr/commit/df546a0eb9b96b453373f38483959d2363a83cae#diff-217778ef1d0638c89207786f06425396891f987713120e83db724d26b9813eebR331
+// referenced by https://devzone.nordicsemi.com/f/nordic-q-a/73310/incompatibility-between-mcumgr-cli-and-hci_usb-when-running-with-bt_ll_softdevice-enabled
+
+void set_public_address(struct k_fifo *rx_queue)
+{
+	const struct bt_hci_cp_vs_write_bd_addr cmd = {
+		.bdaddr.val = {0xFA, 0xFA, 0xFA, 0xFA, 0xFA, 0xFA}
+	};
+	const struct bt_hci_cmd_hdr cmd_header = {
+		.opcode = BT_HCI_OP_VS_WRITE_BD_ADDR,
+		.param_len = sizeof(cmd)
+	};
+	struct net_buf *buf;
+	int err;
+	buf = bt_buf_get_tx(BT_BUF_CMD, K_NO_WAIT,
+			    &cmd_header, sizeof(cmd_header));
+	net_buf_add_mem(buf, &cmd, sizeof(cmd));
+	err = bt_send(buf);
+	__ASSERT_NO_MSG(err == 0);
+	/* Pull out the command complete. */
+	buf = net_buf_get(rx_queue, K_SECONDS(10)); /* 10s == HCI_CMD_TIMEOUT */
+	struct bt_hci_evt_hdr *hdr;
+	__ASSERT_NO_MSG(buf != NULL);
+	__ASSERT_NO_MSG(buf->len >= sizeof(*hdr));
+	hdr = net_buf_pull_mem(buf, sizeof(*hdr));
+	__ASSERT_NO_MSG(hdr->evt == BT_HCI_EVT_CMD_COMPLETE);
+	struct bt_hci_evt_cmd_complete *evt;
+	evt = net_buf_pull_mem(buf, sizeof(*evt));
+	__ASSERT_NO_MSG(sys_le16_to_cpu(evt->opcode) == BT_HCI_OP_VS_WRITE_BD_ADDR);
+	net_buf_unref(buf);
+}
+
+#endif