serial/uart/h5: add bt h5 uart serial driver

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

arch/sim/Kconfig

@@ -434,7 +434,7 @@ endmenu
 config SIM_HCISOCKET
 	bool "Attach Host Bluetooth"
 	default false
-	depends on HOST_LINUX && (UART_BTH4 || WIRELESS_BLUETOOTH)
+	depends on HOST_LINUX && (UART_BTH4 || UART_BTH5 || WIRELESS_BLUETOOTH)
 	---help---
 		Attached the local bluetooth device to the simulation
 		target via HCI_CHANNEL_USER. This gives NuttX full

drivers/serial/Kconfig

@@ -715,7 +715,7 @@ config PSEUDOTERM_TXBUFSIZE
 endif # PSEUDOTERM
 
 menuconfig UART_BTH4
-	bool "BT H4 uart pseudo device"
+	bool "BT H4 UART Pseudo Device"
 	default n
 	depends on DRIVERS_BLUETOOTH
 	---help---
@@ -727,19 +727,19 @@ menuconfig UART_BTH4
 if UART_BTH4
 
 config UART_BTH4_TXBUFSIZE
-	int "BT H4 uart TX buffer size"
+	int "BT H4 UART TX Buffer Size"
 	default 2048
 	---help---
-		H4 UART TX buffer size.  Default: 2048
+		H4 UART TX Buffer Size.  Default: 2048
 
 config UART_BTH4_RXBUFSIZE
-	int "BT H4 uart RX buffer size"
+	int "BT H4 UART RX Buffer Size"
 	default 8096
 	---help---
-		H4 UART RX buffer size.  Default: 8096
+		H4 UART RX Buffer Size.  Default: 8096
 
 config UART_BTH4_NPOLLWAITERS
-	int "Number of poll threads"
+	int "Number Of Poll Threads"
 	default 2
 	---help---
 		Maximum number of threads than can be waiting for POLL events.
@@ -747,4 +747,43 @@ config UART_BTH4_NPOLLWAITERS
 
 endif # UART_BTH4
 
+menuconfig UART_BTH5
+	bool "BT H5 UART Pseudo Device"
+	default n
+	depends on DRIVERS_BLUETOOTH
+	---help---
+		Enable support for Bluetooth H5 UART Pseudo Device(eg. /dev/ttyHCI).
+		This instantiates a serial-like interface over an existing bluetooth
+		controller via HCI interface. Useful for external Bluetooth
+		stacks working this way instead of the socket based interface.
+
+if UART_BTH5
+
+config UART_BTH5_TXBUFSIZE
+	int "BT H5 UART TX Buffer Size"
+	default 2048
+	---help---
+		H5 UART TX Buffer Size.  Default: 2048
+
+config UART_BTH5_TXWIN
+	int "BT H5 Uart TX Window Size"
+	default 4
+	---help---
+		H5 UART TX Window Size.  Default: 4
+
+config UART_BTH5_RXBUFSIZE
+	int "BT H5 Uart RX Buffer Size"
+	default 8096
+	---help---
+		H5 UART RX Buffer Size.  Default: 8096
+
+config UART_BTH5_NPOLLWAITERS
+	int "Number Of Poll Threads"
+	default 2
+	---help---
+		Maximum number of threads than can be waiting for POLL events.
+		Default: 2
+
+endif # UART_BTH5
+
 endif # SERIAL

drivers/serial/Make.defs

@@ -55,6 +55,13 @@ ifeq ($(CONFIG_UART_BTH4),y)
   CSRCS += uart_bth4.c
 endif
 
+# Bluetooth H:5 UART driver
+
+ifeq ($(CONFIG_UART_BTH5),y)
+  CSRCS += uart_bth5.c
+endif
+
+
 # Include serial build support
 
 DEPPATH += --dep-path serial

include/nuttx/serial/uart_bth5.h

@@ -0,0 +1,64 @@
+/****************************************************************************
+ * include/nuttx/serial/uart_bth5.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_SERIAL_UART_BTH5_H
+#define __INCLUDE_NUTTX_SERIAL_UART_BTH5_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/wireless/bluetooth/bt_driver.h>
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: uart_bth5_register
+ *
+ * Description:
+ *   Register bluetooth H:5 UART driver.
+ *
+ ****************************************************************************/
+
+int uart_bth5_register(FAR const char *path, FAR struct bt_driver_s *drv);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __INCLUDE_NUTTX_SERIAL_UART_BTH4_H */