mirror of
https://github.com/hardkernel/kernel_common_drivers.git
synced 2026-06-25 12:03:48 +09:00
qinglin.li
a6e49c140c
PD#SWPL-94401 Problem: repeat open file crash read return error Solution: repeat open file wait file close optimize read file poll Verify: sc2 Signed-off-by: qinglin.li <qinglin.li@amlogic.com> Change-Id: Iec70f2461d047f96ccbf80d9508c01ebb5092267
38 lines
925 B
C
38 lines
925 B
C
/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
|
|
/*
|
|
* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
|
|
*/
|
|
|
|
#ifndef __AMLOGIC_DEBUG_FILE_H
|
|
#define __AMLOGIC_DEBUG_FILE_H
|
|
|
|
#include <linux/kfifo.h>
|
|
#include <linux/list.h>
|
|
#include <linux/fcntl.h>
|
|
|
|
#define DEBUG_FILE_NAME_LEN 200
|
|
struct debug_file_param {
|
|
int id;
|
|
int status;
|
|
int flags;
|
|
unsigned int mode;
|
|
char filename[DEBUG_FILE_NAME_LEN];
|
|
};
|
|
|
|
struct debug_file {
|
|
struct delayed_work release_work;
|
|
struct kfifo kfifo_buf;
|
|
struct list_head list;
|
|
struct mutex mutex; /* */
|
|
struct proc_dir_entry *proc_file;
|
|
struct debug_file_param param;
|
|
wait_queue_head_t wq;
|
|
};
|
|
|
|
struct debug_file *debug_file_open(const char *filename, int flags, umode_t mode);
|
|
ssize_t debug_file_read(struct debug_file *filp, void *buf, size_t count);
|
|
ssize_t debug_file_write(struct debug_file *filp, const void *buf, size_t count);
|
|
int debug_file_close(struct debug_file *filp);
|
|
|
|
#endif
|