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/*
* Copyright (c) 2006-2008 by Roland Riegel <feedback@roland-riegel.de>
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of either the GNU General Public License version 2
* or the GNU Lesser General Public License version 2.1, both as
* published by the Free Software Foundation.
*/
#ifndef SD_RAW_H
#define SD_RAW_H
#include <stdint.h>
#include "sd_raw_config.h"
/**
* \addtogroup sd_raw
*
* @{
*/
/**
* \file
* MMC/SD/SDHC raw access header (license: GPLv2 or LGPLv2.1)
*
* \author Roland Riegel
*/
/**
* The card's layout is harddisk-like, which means it contains
* a master boot record with a partition table.
*/
#define SD_RAW_FORMAT_HARDDISK 0
/**
* The card contains a single filesystem and no partition table.
*/
#define SD_RAW_FORMAT_SUPERFLOPPY 1
/**
* The card's layout follows the Universal File Format.
*/
#define SD_RAW_FORMAT_UNIVERSAL 2
/**
* The card's layout is unknown.
*/
#define SD_RAW_FORMAT_UNKNOWN 3
/**
* This struct is used by sd_raw_get_info() to return
* manufacturing and status information of the card.
*/
struct sd_raw_info
{
/**
* A manufacturer code globally assigned by the SD card organization.
*/
uint8_t manufacturer;
/**
* A string describing the card's OEM or content, globally assigned by the SD card organization.
*/
uint8_t oem[3];
/**
* A product name.
*/
uint8_t product[6];
/**
* The card's revision, coded in packed BCD.
*
* For example, the revision value \c 0x32 means "3.2".
*/
uint8_t revision;
/**
* A serial number assigned by the manufacturer.
*/
uint32_t serial;
/**
* The year of manufacturing.
*
* A value of zero means year 2000.
*/
uint8_t manufacturing_year;
/**
* The month of manufacturing.
*/
uint8_t manufacturing_month;
/**
* The card's total capacity in bytes.
*/
offset_t capacity;
/**
* Defines wether the card's content is original or copied.
*
* A value of \c 0 means original, \c 1 means copied.
*/
uint8_t flag_copy;
/**
* Defines wether the card's content is write-protected.
*
* \note This is an internal flag and does not represent the
* state of the card's mechanical write-protect switch.
*/
uint8_t flag_write_protect;
/**
* Defines wether the card's content is temporarily write-protected.
*
* \note This is an internal flag and does not represent the
* state of the card's mechanical write-protect switch.
*/
uint8_t flag_write_protect_temp;
/**
* The card's data layout.
*
* See the \c SD_RAW_FORMAT_* constants for details.
*
* \note This value is not guaranteed to match reality.
*/
uint8_t format;
};
typedef uint8_t (*sd_raw_read_interval_handler_t)(uint8_t* buffer, offset_t offset, void* p);
typedef uintptr_t (*sd_raw_write_interval_handler_t)(uint8_t* buffer, offset_t offset, void* p);
uint8_t sd_raw_init();
uint8_t sd_raw_available();
uint8_t sd_raw_locked();
uint8_t sd_raw_read(offset_t offset, uint8_t* buffer, uintptr_t length);
uint8_t sd_raw_read_interval(offset_t offset, uint8_t* buffer, uintptr_t interval, uintptr_t length, sd_raw_read_interval_handler_t callback, void* p);
uint8_t sd_raw_write(offset_t offset, const uint8_t* buffer, uintptr_t length);
uint8_t sd_raw_write_interval(offset_t offset, uint8_t* buffer, uintptr_t length, sd_raw_write_interval_handler_t callback, void* p);
uint8_t sd_raw_sync();
uint8_t sd_raw_get_info(struct sd_raw_info* info);
/**
* @}
*/
#endif
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