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Add bulk erase IOCTL; add byte read method

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2158 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2009-10-18 20:58:04 +00:00
parent 23683fe846
commit d754ee2caf
6 changed files with 304 additions and 132 deletions
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include/nuttx/ioctl.h
+2
View File
@@ -118,6 +118,8 @@
* OUT: If media is directly acccesible,
* return (void*) base address
* of device memory */
#define MTDIOC_BULKERASE _MTDIOC(0x0003) /* IN: None
* OUT: None */
/* NuttX ARP driver ioctl definitions (see netinet/arp.h) */
include/nuttx/mtd.h
+25 -10
View File
@@ -2,7 +2,7 @@
* include/nuttx/mtd.h
* Memory Technology Device (MTD) interface
*
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Copyright (C) 2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
@@ -50,10 +50,11 @@
/* Macros to hide implementation */
#define MTD_ERASE(d,s,n) ((d)->erase ? (d)->erase(d,s,n) : (-ENOSYS))
#define MTD_READ(d,s,n,b) ((d)->read ? (d)->read(d,s,n,b) : (-ENOSYS))
#define MTD_WRITE(d,s,n,b) ((d)->write ? (d)->write(d,s,n,b) : (-ENOSYS))
#define MTD_IOCTL(d,c,a) ((d)->ioctl ? (d)->ioctl(d,c,a) : (-ENOSYS))
#define MTD_ERASE(d,s,n) ((d)->erase ? (d)->erase(d,s,n) : (-ENOSYS))
#define MTD_BREAD(d,s,n,b) ((d)->bread ? (d)->bread(d,s,n,b) : (-ENOSYS))
#define MTD_READ(d,a,n,b) ((d)->read ? (d)->read(d,s,n,b) : (-ENOSYS))
#define MTD_BWRITE(d,s,n,b)((d)->bwrite ? (d)->bwrite(d,s,n,b) : (-ENOSYS))
#define MTD_IOCTL(d,c,a) ((d)->ioctl ? (d)->ioctl(d,c,a) : (-ENOSYS))
/****************************************************************************
* Public Types
@@ -88,14 +89,24 @@ struct mtd_dev_s
/* Read/write from the specified read/write blocks */
int (*read)(FAR struct mtd_dev_s *dev, off_t startblock, size_t nblocks,
int (*bread)(FAR struct mtd_dev_s *dev, off_t startblock, size_t nblocks,
FAR ubyte *buffer);
int (*bwrite)(FAR struct mtd_dev_s *dev, off_t startblock, size_t nblocks,
FAR const ubyte *buffer);
/* Some devices may support byte oriented read (optional). Byte-oriented
* writing is inherently block oriented on most MTD devices and is not supported.
* It is recommended that low-level drivers not support read() if it requires
* buffering.
*/
int (*read)(FAR struct mtd_dev_s *dev, off_t offset, size_t nbytes,
FAR ubyte *buffer);
int (*write)(FAR struct mtd_dev_s *dev, off_t startblock, size_t nblocks,
FAR const ubyte *buffer);
/* Support other, less frequently used commands:
* - MTDIOC_GEOMETRY: Get MTD geometry
* - MTDIOC_XIPBASE: Convert block to physical address for eXecute-In-Place
* - MTDIOC_GEOMETRY: Get MTD geometry
* - MTDIOC_XIPBASE: Convert block to physical address for eXecute-In-Place
* - MTDIOC_BULKERASE: Erase the entire device
* (see include/nuttx/ioctl.h)
*/
@@ -119,6 +130,10 @@ extern "C" {
* Public Function Prototypes
****************************************************************************/
/* MTD drivers available in drivers/mtd */
EXTERN FAR struct mtd_dev_s *m25p_initialize(FAR struct spi_dev_s *dev);
#undef EXTERN
#ifdef __cplusplus
}