blob: 6ffbb84a7b6788b4a009a7621bae719da0cf1fe1 [file] [log] [blame]
/*
* Copyright (c) 2011, Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef __FS_H__
#define __FS_H__
#define MAX_FILENAME 256
struct file {
EFI_FILE_HANDLE handle;
EFI_FILE_HANDLE fh;
};
/**
* volume_open - Open the root directory on a volume
* @vol: the volume to open
* @fh: place to return the open file handle for the root directory
*/
static inline EFI_STATUS
volume_open(EFI_FILE_IO_INTERFACE *vol, EFI_FILE_HANDLE *fh)
{
return uefi_call_wrapper(vol->OpenVolume, 2, vol, fh);
}
/**
* file_read - Read from an open file
* @f: the file to read
* @size: size in bytes to read from @f
* @buf: place to store the data read
*/
static inline EFI_STATUS
file_read(struct file *f, UINTN *size, void *buf)
{
return uefi_call_wrapper(f->handle->Read, 3, f->fh, size, buf);
}
/**
* file_set_position - Set the current offset of a file
* @f: the file on which we're changing current file position
* @pos: the file offset to set the current position to
*/
static inline EFI_STATUS
file_set_position(struct file *f, UINT64 pos)
{
return uefi_call_wrapper(f->fh->SetPosition, 2, f->fh, pos);
}
/**
* file_size - Get the size (in bytes) of @file
* @f: the file to query
* @size: where to store the size of the file
*/
static inline EFI_STATUS
file_size(struct file *f, UINT64 *size)
{
EFI_FILE_INFO *info;
info = LibFileInfo(f->fh);
if (!info)
return EFI_UNSUPPORTED;
*size = info->FileSize;
free_pool(info);
return EFI_SUCCESS;
}
extern EFI_STATUS file_open(CHAR16 *name, struct file **file);
extern EFI_STATUS file_close(struct file *f);
extern void list_boot_devices(void);
extern void fs_close(void);
extern EFI_STATUS fs_init(void);
extern void fs_exit(void);
#endif /* __FS_H__ */