dcea1b90e7
Modify the kernel to use only atomic_xx and atomic64_xx interfaces, avoiding the use of sizeof or typeof to determine the type of atomic operations, thereby simplifying the kernel's atomic interface operations. Signed-off-by: zhangyuan29 <zhangyuan29@xiaomi.com>
84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
/****************************************************************************
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* include/nuttx/serial/uart_ram.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_SERIAL_UART_RAM_H
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#define __INCLUDE_NUTTX_SERIAL_UART_RAM_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_RAM_UART
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#include <stdbool.h>
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#include <nuttx/atomic.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Type Declarations
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****************************************************************************/
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struct uart_rambuf_s
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{
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char buffer[CONFIG_RAM_UART_BUFSIZE];
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atomic_t wroff;
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atomic_t rdoff;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/****************************************************************************
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* Name: uart_ram_register
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****************************************************************************/
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int uart_ram_register(FAR const char *devname,
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FAR struct uart_rambuf_s buffer[2], bool slave);
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/****************************************************************************
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* Name: ram_serialinit
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****************************************************************************/
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void ram_serialinit(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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