c860a6e5f1
Before this commit, each rpmsgdev server only manages one file no matter how many times the client opened. It can't work fine with some complex drivers, such as input driver (keyboard, touchscreen and button), because input driver will alloc a new private open structure for every open operation to make sure all the applications don't miss data when input driver is used by multiple applications. This commit solves this problem by making the files in server and client be one-to-one. Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
127 lines
4.0 KiB
C
127 lines
4.0 KiB
C
/****************************************************************************
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* drivers/misc/rpmsgdev.h
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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 __DRIVERS_MISC_RPMSGDEV_H
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#define __DRIVERS_MISC_RPMSGDEV_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/compiler.h>
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/****************************************************************************
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* Pre-processor definitions
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****************************************************************************/
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#ifndef ARRAY_SIZE
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# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#endif
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#define RPMSGDEV_NAME_PREFIX "rpmsgdev-"
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#define RPMSGDEV_NAME_PREFIX_LEN 9
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#define RPMSGDEV_OPEN 1
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#define RPMSGDEV_CLOSE 2
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#define RPMSGDEV_READ 3
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#define RPMSGDEV_WRITE 4
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#define RPMSGDEV_LSEEK 5
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#define RPMSGDEV_IOCTL 6
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#define RPMSGDEV_POLL 7
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#define RPMSGDEV_NOTIFY 8
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/****************************************************************************
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* Public Types
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****************************************************************************/
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begin_packed_struct struct rpmsgdev_header_s
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{
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uint32_t command;
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int32_t result;
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uint64_t cookie;
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} end_packed_struct;
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begin_packed_struct struct rpmsgdev_open_s
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{
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struct rpmsgdev_header_s header;
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uint64_t filep;
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int32_t flags;
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} end_packed_struct;
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begin_packed_struct struct rpmsgdev_close_s
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{
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struct rpmsgdev_header_s header;
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uint64_t filep;
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} end_packed_struct;
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begin_packed_struct struct rpmsgdev_read_s
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{
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struct rpmsgdev_header_s header;
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uint64_t filep;
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uint32_t count;
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char buf[1];
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} end_packed_struct;
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#define rpmsgdev_write_s rpmsgdev_read_s
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begin_packed_struct struct rpmsgdev_lseek_s
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{
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struct rpmsgdev_header_s header;
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uint64_t filep;
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int32_t whence;
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int32_t offset;
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} end_packed_struct;
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begin_packed_struct struct rpmsgdev_ioctl_s
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{
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struct rpmsgdev_header_s header;
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uint64_t filep;
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uint64_t arg;
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uint32_t arglen;
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int32_t request;
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char buf[1];
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} end_packed_struct;
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begin_packed_struct struct rpmsgdev_poll_s
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{
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struct rpmsgdev_header_s header;
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uint64_t filep;
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uint32_t events;
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uint32_t setup;
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uint64_t fds;
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} end_packed_struct;
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begin_packed_struct struct rpmsgdev_notify_s
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{
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struct rpmsgdev_header_s header;
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uint64_t fds;
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uint32_t revents;
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} end_packed_struct;
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/****************************************************************************
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* Internal function prototypes
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****************************************************************************/
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/****************************************************************************
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* Internal data
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****************************************************************************/
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#endif /* __DRIVERS_MISC_RPMSGDEV_H */
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