123 lines
3.7 KiB
C
123 lines
3.7 KiB
C
/**
|
|
* \file
|
|
* <!--
|
|
* This file is part of BeRTOS.
|
|
*
|
|
* Bertos is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
* As a special exception, you may use this file as part of a free software
|
|
* library without restriction. Specifically, if other files instantiate
|
|
* templates or use macros or inline functions from this file, or you compile
|
|
* this file and link it with other files to produce an executable, this
|
|
* file does not by itself cause the resulting executable to be covered by
|
|
* the GNU General Public License. This exception does not however
|
|
* invalidate any other reasons why the executable file might be covered by
|
|
* the GNU General Public License.
|
|
*
|
|
* Copyright 2007 Develer S.r.l. (http://www.develer.com/)
|
|
* -->
|
|
*
|
|
* \brief Function library for secure digital memory.
|
|
*
|
|
*
|
|
* \author Francesco Sacchi <batt@develer.com>
|
|
*
|
|
* $WIZ$ module_name = "sd"
|
|
* $WIZ$ module_depends = "kfile", "timer", "kblock"
|
|
* $WIZ$ module_hw = "bertos/hw/hw_sd.h"
|
|
* $WIZ$ module_configuration = "bertos/cfg/cfg_sd.h"
|
|
*/
|
|
|
|
|
|
#ifndef DRV_SD_H
|
|
#define DRV_SD_H
|
|
|
|
#include "cfg/cfg_sd.h"
|
|
|
|
#include <io/kfile.h>
|
|
#include <io/kblock.h>
|
|
|
|
#include <fs/fatfs/diskio.h>
|
|
|
|
|
|
#define SD_UNBUFFERED BV(0) ///< Open SD memory disabling page caching, no modification and partial write are allowed.
|
|
|
|
/**
|
|
* SD Card context structure.
|
|
*/
|
|
typedef struct Sd
|
|
{
|
|
KBlock b; ///< KBlock base class
|
|
KFile *ch; ///< SPI communication channel
|
|
uint16_t r1; ///< Last status data received from SD
|
|
uint16_t tranfer_len; ///< Lenght for the read/write commands, cached in order to increase speed.
|
|
} Sd;
|
|
|
|
bool sd_initUnbuf(Sd *sd, KFile *ch);
|
|
bool sd_initBuf(Sd *sd, KFile *ch);
|
|
|
|
#if CONFIG_SD_OLD_INIT
|
|
#if !(ARCH & ARCH_NIGHTTEST)
|
|
#warning "Deprecated: this API will be removed in the next major release,"
|
|
#warning "please disable CONFIG_SD_OLD_INIT and pass explicitly the SD context to sd_init()."
|
|
#endif
|
|
|
|
/**
|
|
* Initializes the SD driver.
|
|
*
|
|
* \param ch A pointer to a SPI channel where the SD will read/write to.
|
|
*
|
|
* \return true if initialization succeds, false otherwise.
|
|
*
|
|
* \note This API is deprecated, disable CONFIG_SD_OLD_INIT and
|
|
* use the new one instead.
|
|
*
|
|
* \see CONFIG_SD_OLD_INIT.
|
|
*/
|
|
#define sd_init(ch) {static struct Sd sd; sd_initUnbuf(&sd, (ch));}
|
|
|
|
#else
|
|
|
|
/**
|
|
* Initializes the SD driver.
|
|
*
|
|
* \param sd The SD KBlock context.
|
|
* \param ch A pointer to a SPI channel where the SD will read/write to.
|
|
* \param buffered Set to true if you want the KBlock to be buffered,
|
|
* to false otherwise. The FatFs module does not require the device
|
|
* to be buffered because it has an internal cache. This will save
|
|
* 512 bytes of RAM in this case.
|
|
*
|
|
* \return true if initialization succeds, false otherwise.
|
|
*/
|
|
#define sd_init(sd, ch, buffered) ((buffered & SD_UNBUFFERED) ? sd_initUnbuf((sd), (ch)) : sd_initBuf((sd), (ch)))
|
|
|
|
#endif
|
|
|
|
|
|
#define KBT_SD MAKE_ID('S', 'D', 'B', 'K')
|
|
|
|
bool sd_test(Sd *sd);
|
|
void sd_writeTest(Sd *sd);
|
|
|
|
INLINE Sd *SD_CAST(KBlock *b)
|
|
{
|
|
ASSERT(b->priv.type == KBT_SD);
|
|
return (Sd *)b;
|
|
}
|
|
|
|
|
|
#endif /* DRV_SD_H */
|