161 lines
5.5 KiB
C
161 lines
5.5 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @defgroup filesystem FileSystem
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* @defgroup mtd_partition Multi Partition
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* @ingroup filesystem
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*/
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#ifndef _MTD_PARTITION_H
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#define _MTD_PARTITION_H
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#include "sys/types.h"
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#include "los_mux.h"
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#include "mtd_list.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#define SPIBLK_NAME "/dev/spinorblk"
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#define SPICHR_NAME "/dev/spinorchr"
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#define NANDBLK_NAME "/dev/nandblk"
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#define NANDCHR_NAME "/dev/nandchr"
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typedef struct mtd_node {
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UINT32 start_block;
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UINT32 end_block;
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UINT32 patitionnum;
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CHAR *blockdriver_name;
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CHAR *chardriver_name;
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CHAR *mountpoint_name;
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VOID *mtd_info; /* Driver used by a partition */
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LOS_DL_LIST node_info;
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LosMux lock;
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UINT32 user_num;
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} mtd_partition;
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typedef struct par_param {
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mtd_partition *partition_head;
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struct MtdDev *flash_mtd;
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const struct block_operations *flash_ops;
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const struct file_operations_vfs *char_ops;
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CHAR *blockname;
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CHAR *charname;
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UINT32 block_size;
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} partition_param;
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#define CONFIG_MTD_PATTITION_NUM 20
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#define ALIGN_ASSIGN(len, startAddr, startBlk, endBlk, blkSize) do { \
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(len) = (((len) + ((blkSize) - 1)) & ~((blkSize) - 1)); \
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(startAddr) = ((startAddr) & ~((blkSize) - 1)); \
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(startBlk) = (startAddr) / (blkSize); \
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(endBlk) = (len) / (blkSize) + ((startBlk) - 1); \
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} while (0)
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#define PAR_ASSIGNMENT(node, len, startAddr, num, mtd, blkSize) do { \
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(node)->start_block = (startAddr) / (blkSize); \
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(node)->end_block = (len) / (blkSize) + ((node)->start_block - 1); \
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(node)->patitionnum = (num); \
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(node)->mtd_info = (mtd); \
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(node)->mountpoint_name = NULL; \
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} while (0)
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partition_param *GetNandPartParam(VOID);
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partition_param *GetSpinorPartParam(VOID);
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mtd_partition *GetSpinorPartitionHead(VOID);
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/**
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* @ingroup mtd_partition
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* @brief Add a partition.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to add a partition according to the passed-in parameters.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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*
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* @param type [IN] Storage medium type, support "nand" and "spinor" currently.
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* @param startAddr [IN] Starting address of a partition.
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* @param length [IN] Partition size.
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* @param partitionNum [IN] Partition number, less than the value defined by CONFIG_MTD_PATTITION_NUM.
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*
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* @retval #-ENODEV The driver is not found.
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* @retval #-EINVAL Invalid parameter.
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* @retval #-ENOMEM Insufficient memory.
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* @retval #ENOERR The partition is successfully created.
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*
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* @par Dependency:
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* <ul><li>mtd_partition.h: the header file that contains the API declaration.</li></ul>
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* @see delete_mtd_partition
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*/
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extern INT32 add_mtd_partition(const CHAR *type, UINT32 startAddr, UINT32 length, UINT32 partitionNum);
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/**
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* @ingroup mtd_partition
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* @brief Delete a partition.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to delete a partition according to its partition number and storage medium type.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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*
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* @param partitionNum [IN] Partition number, less than the value defined by CONFIG_MTD_PATTITION_NUM.
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* @param type [IN] Storage medium type, support "nand" and "spinor" currently.
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*
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* @retval #-EINVAL Invalid parameter.
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* @retval #ENOERR The partition is successfully deleted.
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*
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* @par Dependency:
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* <ul><li>mtd_partition.h: the header file that contains the API declaration.</li></ul>
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* @see add_mtd_partition
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*/
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extern INT32 delete_mtd_partition(UINT32 partitionNum, const CHAR *type);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _MTD_PARTITION_H */
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