84fa994f51
1. rpmsgdev ioctl: should assgin back the client return value to cookie->result, then this return value can be returned to the application; 2. rpmsgdev seek: the type "off_t" may be 64bit, so modify the offset in "struct rpmsgdev_lseek" to int64_t too; 3. rpmsgdev_seek: the rpmsgdev_seek in client should update the filep->f_pos after the seek operation; Signed-off-by: wangbowen6 <wangbowen6@xiaomi.com>
127 lines
4.0 KiB
C
127 lines
4.0 KiB
C
/****************************************************************************
|
|
* drivers/misc/rpmsgdev.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 __DRIVERS_MISC_RPMSGDEV_H
|
|
#define __DRIVERS_MISC_RPMSGDEV_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/compiler.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor definitions
|
|
****************************************************************************/
|
|
|
|
#ifndef ARRAY_SIZE
|
|
# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
|
|
#endif
|
|
|
|
#define RPMSGDEV_NAME_PREFIX "rpmsgdev-"
|
|
#define RPMSGDEV_NAME_PREFIX_LEN 9
|
|
|
|
#define RPMSGDEV_OPEN 1
|
|
#define RPMSGDEV_CLOSE 2
|
|
#define RPMSGDEV_READ 3
|
|
#define RPMSGDEV_WRITE 4
|
|
#define RPMSGDEV_LSEEK 5
|
|
#define RPMSGDEV_IOCTL 6
|
|
#define RPMSGDEV_POLL 7
|
|
#define RPMSGDEV_NOTIFY 8
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
begin_packed_struct struct rpmsgdev_header_s
|
|
{
|
|
uint32_t command;
|
|
int32_t result;
|
|
uint64_t cookie;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct rpmsgdev_open_s
|
|
{
|
|
struct rpmsgdev_header_s header;
|
|
uint64_t filep;
|
|
int32_t flags;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct rpmsgdev_close_s
|
|
{
|
|
struct rpmsgdev_header_s header;
|
|
uint64_t filep;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct rpmsgdev_read_s
|
|
{
|
|
struct rpmsgdev_header_s header;
|
|
uint64_t filep;
|
|
uint32_t count;
|
|
char buf[1];
|
|
} end_packed_struct;
|
|
|
|
#define rpmsgdev_write_s rpmsgdev_read_s
|
|
|
|
begin_packed_struct struct rpmsgdev_lseek_s
|
|
{
|
|
struct rpmsgdev_header_s header;
|
|
uint64_t filep;
|
|
int64_t offset;
|
|
int32_t whence;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct rpmsgdev_ioctl_s
|
|
{
|
|
struct rpmsgdev_header_s header;
|
|
uint64_t filep;
|
|
uint64_t arg;
|
|
uint32_t arglen;
|
|
int32_t request;
|
|
char buf[1];
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct rpmsgdev_poll_s
|
|
{
|
|
struct rpmsgdev_header_s header;
|
|
uint64_t filep;
|
|
uint32_t events;
|
|
uint32_t setup;
|
|
uint64_t fds;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct rpmsgdev_notify_s
|
|
{
|
|
struct rpmsgdev_header_s header;
|
|
uint64_t fds;
|
|
uint32_t revents;
|
|
} end_packed_struct;
|
|
|
|
/****************************************************************************
|
|
* Internal function prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Internal data
|
|
****************************************************************************/
|
|
|
|
#endif /* __DRIVERS_MISC_RPMSGDEV_H */
|