/* * Copyright (C) 2021 HiSilicon (Shanghai) Technologies CO., LIMITED. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __OAL_FILE_H__ #define __OAL_FILE_H__ /* **************************************************************************** 1 其他头文件包含 **************************************************************************** */ #if (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION) #include #include #elif (_PRE_OS_VERSION_LITEOS == _PRE_OS_VERSION) #include #include #include #endif #include "oal_mm.h" #ifdef __cplusplus #if __cplusplus extern "C" { #endif #endif /* **************************************************************************** 2 宏定义 **************************************************************************** */ /* 文件属性 */ #define OAL_O_ACCMODE O_ACCMODE #define OAL_O_RDONLY O_RDONLY #define OAL_O_WRONLY O_WRONLY #define OAL_O_RDWR O_RDWR #define OAL_O_CREAT O_CREAT #define OAL_O_TRUNC O_TRUNC #define OAL_O_APPEND O_APPEND #define OAL_SEEK_SET SEEK_SET /* Seek from beginning of file. */ #define OAL_SEEK_CUR SEEK_CUR /* Seek from current position. */ #define OAL_SEEK_END SEEK_END /* Set file pointer to EOF plus "offset" */ #if (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION) #define OAL_FILE_POS(pst_file) (pst_file->fp->f_pos) #define OAL_FILE_FAIL HI_NULL #elif (_PRE_OS_VERSION_LITEOS == _PRE_OS_VERSION) #define OAL_FILE_POS(pst_file) oal_get_file_pos(pst_file) #endif /* **************************************************************************** 3 枚举定义 **************************************************************************** */ /* **************************************************************************** 4 全局变量声明 **************************************************************************** */ /* **************************************************************************** 5 消息头定义 **************************************************************************** */ /* **************************************************************************** 6 消息定义 **************************************************************************** */ /* **************************************************************************** 7 STRUCT定义 **************************************************************************** */ typedef struct _oal_file_stru_ { #if (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION) struct file *fp; #elif (_PRE_OS_VERSION_LITEOS == _PRE_OS_VERSION) int fd; #endif } oal_file_stru; /* **************************************************************************** 8 UNION定义 **************************************************************************** */ /* **************************************************************************** 9 OTHERS定义 **************************************************************************** */ /* **************************************************************************** 10 函数声明 **************************************************************************** */ /* **************************************************************************** 功能描述 : 打开文件 输入参数 : pc_path: 文件路径，flags:打开方式,rights:打开权限 输出参数 : 无 返 回 值 : 文件句柄 **************************************************************************** */ static inline oal_file_stru *oal_file_open(const hi_char *pc_path, hi_s32 flags, hi_s32 rights) { oal_file_stru *pst_file = NULL; pst_file = oal_kzalloc(sizeof(oal_file_stru), OAL_GFP_KERNEL); if (pst_file == NULL) { return HI_NULL; } #if (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION) pst_file->fp = filp_open(pc_path, flags, rights); if (IS_ERR_OR_NULL(pst_file->fp)) { oal_free(pst_file); return HI_NULL; } #elif (_PRE_OS_VERSION_LITEOS == _PRE_OS_VERSION) pst_file->fd = open(pc_path, flags, rights); if (pst_file->fd < 0) { oal_free(pst_file); return HI_NULL; } #endif return pst_file; } /* **************************************************************************** 功能描述 : 写文件 输入参数 : file: 文件句柄 : pc_string: 输入内容地址 : ul_length: 输入内容长度 输出参数 : 无 返 回 值 : 文件句柄 **************************************************************************** */ static inline hi_u32 oal_file_write(const oal_file_stru *pst_file, const hi_char *pc_string, hi_u32 ul_length) { #if (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION) hi_u32 ul_ret; mm_segment_t fs; fs = get_fs(); set_fs(KERNEL_DS); ul_ret = vfs_write(pst_file->fp, pc_string, ul_length, &(pst_file->fp->f_pos)); set_fs(fs); return ul_ret; #elif (_PRE_OS_VERSION_LITEOS == _PRE_OS_VERSION) return (hi_u32)write(pst_file->fd, pc_string, ul_length); #endif } /* **************************************************************************** 功能描述 : 关闭文件 输入参数 : pc_path: 文件路径 输出参数 : 无 返 回 值 : 文件句柄 **************************************************************************** */ static inline hi_void oal_file_close(oal_file_stru *pst_file) { if (pst_file != HI_NULL) { #if (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION) filp_close(pst_file->fp, NULL); #elif (_PRE_OS_VERSION_LITEOS == _PRE_OS_VERSION) close(pst_file->fd); #endif oal_free(pst_file); pst_file = NULL; } } /* **************************************************************************** 功能描述 : 内核读文件，从头开始读 输入参数 : file:指向要读取的文件的指针 puc_buf:从文件读出数据后存放的buf ul_count:指定要读取的长度 输出参数 : 无 返 回 值 : **************************************************************************** */ static inline hi_s32 oal_file_read(const oal_file_stru *pst_file, hi_u8 *pc_buf, hi_u32 ul_count) { #if (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION) return kernel_read(pst_file->fp, pc_buf, ul_count, &(pst_file->fp->f_pos)); #elif (_PRE_OS_VERSION_LITEOS == _PRE_OS_VERSION) return read(pst_file->fd, pc_buf, ul_count); #endif } static inline hi_s64 oal_file_lseek(const oal_file_stru *pst_file, hi_s64 offset, hi_s32 whence) { #if (_PRE_OS_VERSION_LINUX == _PRE_OS_VERSION) return vfs_llseek(pst_file->fp, offset, whence); #elif (_PRE_OS_VERSION_LITEOS == _PRE_OS_VERSION) return lseek(pst_file->fd, offset, whence); #endif } #ifdef __cplusplus #if __cplusplus } #endif #endif #endif /* end of oal_file.h */