mirror of
https://github.com/apache/nuttx.git
synced 2026-05-23 06:39:01 +08:00
More NAND stuff
This commit is contained in:
Gregory Nutt
@@ -50,6 +50,7 @@
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <semaphore.h>
|
||||
|
||||
#include <nuttx/mtd/mtd.h>
|
||||
#include <nuttx/mtd/nand_raw.h>
|
||||
@@ -71,6 +72,7 @@ struct nand_dev_s
|
||||
{
|
||||
struct mtd_dev_s mtd; /* Externally visible part of the driver */
|
||||
FAR struct nand_raw_s *raw; /* Retained reference to the lower half */
|
||||
sem_t exclsem; /* For exclusive access to the NAND flas */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
|
||||
@@ -0,0 +1,130 @@
|
||||
/****************************************************************************
|
||||
* include/nuttx/mtd/nand_ecc.h
|
||||
*
|
||||
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* This logic was based largely on Atmel sample code with modifications for
|
||||
* better integration with NuttX. The Atmel sample code has a BSD
|
||||
* compatibile license that requires this copyright notice:
|
||||
*
|
||||
* Copyright (c) 2012, Atmel Corporation
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. 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.
|
||||
* 3. Neither the names NuttX nor Atmel 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 __INCLUDE_NUTTX_MTD_ECC_H
|
||||
#define __INCLUDE_NUTTX_MTD_ECC_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/mtd/nand_config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-Processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C"
|
||||
{
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nandecc_readpage
|
||||
*
|
||||
* Description:
|
||||
* Reads the data and/or the spare areas of a page of a NAND FLASH into the
|
||||
* provided buffers.
|
||||
*
|
||||
* Input parameters:
|
||||
* nand - Upper-half, NAND FLASH interface
|
||||
* block - Number of the block where the page to read resides.
|
||||
* page - Number of the page to read inside the given block.
|
||||
* data - Buffer where the data area will be stored.
|
||||
* spare - Buffer where the spare area will be stored.
|
||||
*
|
||||
* Returned value.
|
||||
* OK is returned in success; a negated errno value is returned on failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int nandecc_readpage(FAR struct nand_dev_s *nand, off_t block,
|
||||
unsigned int page, FAR void *data, FAR void *spare);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nandecc_writepage
|
||||
*
|
||||
* Description:
|
||||
* Writes the data and/or the spare area of a page on a NAND FLASH chip.
|
||||
*
|
||||
* Input parameters:
|
||||
* nand - Upper-half, NAND FLASH interface
|
||||
* block - Number of the block where the page to write resides.
|
||||
* page - Number of the page to write inside the given block.
|
||||
* data - Buffer containing the data to be writting
|
||||
* spare - Buffer conatining the spare data to be written.
|
||||
*
|
||||
* Returned value.
|
||||
* OK is returned in success; a negated errno value is returned on failure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int nandecc_writepage(FAR struct nand_dev_s *nand, off_t block,
|
||||
unsigned int page, FAR const void *data,
|
||||
FAR const void *spare);
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __INCLUDE_NUTTX_MTD_ECC_H */
|
||||
@@ -193,7 +193,7 @@ int nandmodel_translate(FAR const struct nand_model_s *model, off_t address,
|
||||
#define nandmodel_getdevid(m) ((m)->devid)
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nandmodel_getdevblocksize
|
||||
* Name: nandmodel_getdevblocks
|
||||
*
|
||||
* Description:
|
||||
* Returns the number of blocks in the entire device.
|
||||
@@ -206,7 +206,7 @@ int nandmodel_translate(FAR const struct nand_model_s *model, off_t address,
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#define nandmodel_getdevblocksize(m) \
|
||||
#define nandmodel_getdevblocks(m) \
|
||||
((off_t)((m)->devsize << 10) / (m)->blocksize)
|
||||
|
||||
/****************************************************************************
|
||||
@@ -244,23 +244,7 @@ int nandmodel_translate(FAR const struct nand_model_s *model, off_t address,
|
||||
#define nandmodel_getdevmbsize(m) ((uint32_t)((m)->devsize))
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nandmodel_getblocksize
|
||||
*
|
||||
* Description:
|
||||
* Returns the number of pages in one single block of a device.
|
||||
*
|
||||
* Input Parameters:
|
||||
* model Pointer to a nand_model_s instance.
|
||||
*
|
||||
* Returned Values:
|
||||
*
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
unsigned int nandmodel_getblocksize(FAR const struct nand_model_s *model);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nandmodel_getpageblocksize
|
||||
* Name: nandmodel_pagesperblock
|
||||
*
|
||||
* Description:
|
||||
* Returns the number of pages in one single block of a device.
|
||||
@@ -273,7 +257,7 @@ unsigned int nandmodel_getblocksize(FAR const struct nand_model_s *model);
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#define nandmodel_getpageblocksize(m) \
|
||||
#define nandmodel_pagesperblock(m) \
|
||||
((uint32_t)((m)->blocksize << 10) / model->pagesize)
|
||||
|
||||
/****************************************************************************
|
||||
@@ -291,7 +275,7 @@ unsigned int nandmodel_getblocksize(FAR const struct nand_model_s *model);
|
||||
****************************************************************************/
|
||||
|
||||
#define nandmodel_getdevpagesize(m) \
|
||||
((uint32_t)nandmodel_getdevblocksize(m) * nandmodel_getpageblocksize(m))
|
||||
((uint32_t)nandmodel_getdevblocks(m) * nandmodel_pagesperblock(m))
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nandmodel_getbyteblocksize
|
||||
|
||||
Reference in New Issue
Block a user