bluetooth:add btslip driver

add btslip driver.

Signed-off-by: chengkai <chengkai@xiaomi.com>

drivers/wireless/bluetooth/Kconfig

@@ -85,4 +85,24 @@ config BLUETOOTH_RPMSG
 	depends on EXPERIMENTAL && RPTUN
 	default n
 
+config BLUETOOTH_SLIP
+	bool "Bluetooth SLIP support"
+	default n
+
+if BLUETOOTH_SLIP
+
+config BLUETOOTH_SLIP_TXBUFSIZE
+	int "BT H5 UART TX Buffer Size"
+	default 2048
+	---help---
+		H5 UART TX Buffer Size.  Default: 2048
+
+config BLUETOOTH_SLIP_TXWIN
+	int "BT H5 Uart TX Window Size"
+	default 4
+	---help---
+		H5 UART TX Window Size.  Default: 4
+
+endif # BLUETOOTH_SLIP
+
 endif # DRIVERS_BLUETOOTH

drivers/wireless/bluetooth/Make.defs

@@ -56,6 +56,10 @@ ifeq ($(CONFIG_BLUETOOTH_RPMSG),y)
 CSRCS += bt_rpmsghci.c
 endif
 
+ifeq ($(CONFIG_BLUETOOTH_SLIP),y)
+CSRCS += bt_slip.c
+endif
+
 # Include common Bluetooth driver build support
 
 DEPPATH += --dep-path wireless$(DELIM)bluetooth

include/nuttx/wireless/bluetooth/bt_slip.h

@@ -0,0 +1,49 @@
+/****************************************************************************
+ * include/nuttx/wireless/bluetooth/bt_slip.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you 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.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_NUTTX_WIRELESS_BLUETOOTH_BT_SLIP_H
+#define __INCLUDE_NUTTX_WIRELESS_BLUETOOTH_BT_SLIP_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/wireless/bluetooth/bt_driver.h>
+
+/****************************************************************************
+ * Name: bt_slip_register
+ *
+ * Description:
+ *   SLIP-HCI initialize function, the h5 hci protocol would call
+ *   this function.
+ *
+ * Parameters:
+ *   drv - SLIP-HCI low bt driver
+ *
+ * Returned Values:
+ *   OK on success; A negated errno value is returned on any failure.
+ *
+ ****************************************************************************/
+
+FAR struct bt_driver_s *bt_slip_register(FAR struct bt_driver_s *drv);
+
+#endif /* __INCLUDE_NUTTX_WIRELESS_BLUETOOTH_BT_SLIPHCI_H */