f99a4f557d
Gregory Nutt is has submitted the SGA Ken Pettit has submitted the ICLA as a result we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
138 lines
4.8 KiB
C
138 lines
4.8 KiB
C
/****************************************************************************
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* apps/futils/mkfatfs/mkfatfs.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 __APPS_FSUTILS_MKFATFS_MKFATFS_H
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#define __APPS_FSUTILS_MKFATFS_MKFATFS_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Only the "hard drive" media type is used */
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#define FAT_DEFAULT_MEDIA_TYPE 0xf8
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/* Default hard driver geometry */
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#define FAT_DEFAULT_SECPERTRK 63
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#define FAT_DEFAULT_NUMHEADS 255
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/* FSINFO is always at this sector */
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#define FAT_DEFAULT_FSINFO_SECTOR 1
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/* FAT32 foot cluster number */
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#define FAT32_DEFAULT_ROOT_CLUSTER 2
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* This structure (plus the user-provided struct fat_format_s) describes
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* the format FAT file system. All "global" variables used in the format
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* logic are contained in this structure so that is possible to format two
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* block devices concurrently.
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*/
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struct fat_var_s
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{
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int fv_fd; /* File descriptor of open block driver */
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uint8_t fv_jump[3]; /* 3-byte boot jump instruction */
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uint8_t fv_sectshift; /* Log2 of fv_sectorsize */
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uint8_t fv_nrootdirsects; /* Number of root directory sectors */
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uint8_t fv_fattype; /* FAT size: 0 (not determined), 12, 16, or 32 */
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uint16_t fv_bootcodesize; /* Size of array at fv_bootcode */
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uint32_t fv_createtime; /* Creation time */
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uint32_t fv_sectorsize; /* Size of one hardware sector */
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uint32_t fv_nfatsects; /* Number of sectors in each FAT */
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uint32_t fv_nclusters; /* Number of clusters */
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uint8_t *fv_sect; /* Allocated working sector buffer */
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const uint8_t *fv_bootcode; /* Points to boot code to put into MBR */
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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struct fat_format_s; /* Forward reference */
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/****************************************************************************
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* Name: mkfatfs_configfatfs
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*
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* Description:
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* Based on the geometry of the block device and upon the caller-selected
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* values, configure the FAT filesystem for the device.
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*
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* Input:
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* fmt - Caller specified format parameters
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* var - Holds disk geometry data. Also, the location to return FAT
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* configuration data
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*
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* Return:
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* Zero on success; negated errno on failure
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*
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****************************************************************************/
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int mkfatfs_configfatfs(FAR struct fat_format_s *fmt,
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FAR struct fat_var_s *var);
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/****************************************************************************
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* Name: mkfatfs_writefat
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*
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* Description:
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* Write the configured fat filesystem to the block device
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*
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* Input:
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* fmt - Caller specified format parameters
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* var - Other format parameters that are not caller specifiable. (Most
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* set by mkfatfs_configfatfs()).
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*
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* Return:
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* Zero on success; negated errno on failure
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*
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****************************************************************************/
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int mkfatfs_writefatfs(FAR struct fat_format_s *fmt,
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FAR struct fat_var_s *var);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __APPS_FSUTILS_MKFATFS_MKFATFS_H */
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