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/* Arduino Sd2Card Library
* Copyright (C) 2009 by William Greiman
*
* This file is part of the Arduino Sd2Card Library
*
* This Library 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 3 of the License, or
* (at your option) any later version.
*
* This Library 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 the Arduino Sd2Card Library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include "Marlin.h"
#ifdef SDSUPPORT
#ifndef SdInfo_h
#define SdInfo_h
#include <stdint.h>
// Based on the document:
//
// SD Specifications
// Part 1
// Physical Layer
// Simplified Specification
// Version 3.01
// May 18, 2010
//
// http://www.sdcard.org/developers/tech/sdcard/pls/simplified_specs
//------------------------------------------------------------------------------
// SD card commands
/** GO_IDLE_STATE - init card in spi mode if CS low */
uint8_t const CMD0 = 0X00;
/** SEND_IF_COND - verify SD Memory Card interface operating condition.*/
uint8_t const CMD8 = 0X08;
/** SEND_CSD - read the Card Specific Data (CSD register) */
uint8_t const CMD9 = 0X09;
/** SEND_CID - read the card identification information (CID register) */
uint8_t const CMD10 = 0X0A;
/** STOP_TRANSMISSION - end multiple block read sequence */
uint8_t const CMD12 = 0X0C;
/** SEND_STATUS - read the card status register */
uint8_t const CMD13 = 0X0D;
/** READ_SINGLE_BLOCK - read a single data block from the card */
uint8_t const CMD17 = 0X11;
/** READ_MULTIPLE_BLOCK - read a multiple data blocks from the card */
uint8_t const CMD18 = 0X12;
/** WRITE_BLOCK - write a single data block to the card */
uint8_t const CMD24 = 0X18;
/** WRITE_MULTIPLE_BLOCK - write blocks of data until a STOP_TRANSMISSION */
uint8_t const CMD25 = 0X19;
/** ERASE_WR_BLK_START - sets the address of the first block to be erased */
uint8_t const CMD32 = 0X20;
/** ERASE_WR_BLK_END - sets the address of the last block of the continuous
range to be erased*/
uint8_t const CMD33 = 0X21;
/** ERASE - erase all previously selected blocks */
uint8_t const CMD38 = 0X26;
/** APP_CMD - escape for application specific command */
uint8_t const CMD55 = 0X37;
/** READ_OCR - read the OCR register of a card */
uint8_t const CMD58 = 0X3A;
/** SET_WR_BLK_ERASE_COUNT - Set the number of write blocks to be
pre-erased before writing */
uint8_t const ACMD23 = 0X17;
/** SD_SEND_OP_COMD - Sends host capacity support information and
activates the card's initialization process */
uint8_t const ACMD41 = 0X29;
//------------------------------------------------------------------------------
/** status for card in the ready state */
uint8_t const R1_READY_STATE = 0X00;
/** status for card in the idle state */
uint8_t const R1_IDLE_STATE = 0X01;
/** status bit for illegal command */
uint8_t const R1_ILLEGAL_COMMAND = 0X04;
/** start data token for read or write single block*/
uint8_t const DATA_START_BLOCK = 0XFE;
/** stop token for write multiple blocks*/
uint8_t const STOP_TRAN_TOKEN = 0XFD;
/** start data token for write multiple blocks*/
uint8_t const WRITE_MULTIPLE_TOKEN = 0XFC;
/** mask for data response tokens after a write block operation */
uint8_t const DATA_RES_MASK = 0X1F;
/** write data accepted token */
uint8_t const DATA_RES_ACCEPTED = 0X05;
//------------------------------------------------------------------------------
/** Card IDentification (CID) register */
typedef struct CID {
// byte 0
/** Manufacturer ID */
unsigned char mid;
// byte 1-2
/** OEM/Application ID */
char oid[2];
// byte 3-7
/** Product name */
char pnm[5];
// byte 8
/** Product revision least significant digit */
unsigned char prv_m : 4;
/** Product revision most significant digit */
unsigned char prv_n : 4;
// byte 9-12
/** Product serial number */
uint32_t psn;
// byte 13
/** Manufacturing date year low digit */
unsigned char mdt_year_high : 4;
/** not used */
unsigned char reserved : 4;
// byte 14
/** Manufacturing date month */
unsigned char mdt_month : 4;
/** Manufacturing date year low digit */
unsigned char mdt_year_low :4;
// byte 15
/** not used always 1 */
unsigned char always1 : 1;
/** CRC7 checksum */
unsigned char crc : 7;
}cid_t;
//------------------------------------------------------------------------------
/** CSD for version 1.00 cards */
typedef struct CSDV1 {
// byte 0
unsigned char reserved1 : 6;
unsigned char csd_ver : 2;
// byte 1
unsigned char taac;
// byte 2
unsigned char nsac;
// byte 3
unsigned char tran_speed;
// byte 4
unsigned char ccc_high;
// byte 5
unsigned char read_bl_len : 4;
unsigned char ccc_low : 4;
// byte 6
unsigned char c_size_high : 2;
unsigned char reserved2 : 2;
unsigned char dsr_imp : 1;
unsigned char read_blk_misalign :1;
unsigned char write_blk_misalign : 1;
unsigned char read_bl_partial : 1;
// byte 7
unsigned char c_size_mid;
// byte 8
unsigned char vdd_r_curr_max : 3;
unsigned char vdd_r_curr_min : 3;
unsigned char c_size_low :2;
// byte 9
unsigned char c_size_mult_high : 2;
unsigned char vdd_w_cur_max : 3;
unsigned char vdd_w_curr_min : 3;
// byte 10
unsigned char sector_size_high : 6;
unsigned char erase_blk_en : 1;
unsigned char c_size_mult_low : 1;
// byte 11
unsigned char wp_grp_size : 7;
unsigned char sector_size_low : 1;
// byte 12
unsigned char write_bl_len_high : 2;
unsigned char r2w_factor : 3;
unsigned char reserved3 : 2;
unsigned char wp_grp_enable : 1;
// byte 13
unsigned char reserved4 : 5;
unsigned char write_partial : 1;
unsigned char write_bl_len_low : 2;
// byte 14
unsigned char reserved5: 2;
unsigned char file_format : 2;
unsigned char tmp_write_protect : 1;
unsigned char perm_write_protect : 1;
unsigned char copy : 1;
/** Indicates the file format on the card */
unsigned char file_format_grp : 1;
// byte 15
unsigned char always1 : 1;
unsigned char crc : 7;
}csd1_t;
//------------------------------------------------------------------------------
/** CSD for version 2.00 cards */
typedef struct CSDV2 {
// byte 0
unsigned char reserved1 : 6;
unsigned char csd_ver : 2;
// byte 1
/** fixed to 0X0E */
unsigned char taac;
// byte 2
/** fixed to 0 */
unsigned char nsac;
// byte 3
unsigned char tran_speed;
// byte 4
unsigned char ccc_high;
// byte 5
/** This field is fixed to 9h, which indicates READ_BL_LEN=512 Byte */
unsigned char read_bl_len : 4;
unsigned char ccc_low : 4;
// byte 6
/** not used */
unsigned char reserved2 : 4;
unsigned char dsr_imp : 1;
/** fixed to 0 */
unsigned char read_blk_misalign :1;
/** fixed to 0 */
unsigned char write_blk_misalign : 1;
/** fixed to 0 - no partial read */
unsigned char read_bl_partial : 1;
// byte 7
/** not used */
unsigned char reserved3 : 2;
/** high part of card size */
unsigned char c_size_high : 6;
// byte 8
/** middle part of card size */
unsigned char c_size_mid;
// byte 9
/** low part of card size */
unsigned char c_size_low;
// byte 10
/** sector size is fixed at 64 KB */
unsigned char sector_size_high : 6;
/** fixed to 1 - erase single is supported */
unsigned char erase_blk_en : 1;
/** not used */
unsigned char reserved4 : 1;
// byte 11
unsigned char wp_grp_size : 7;
/** sector size is fixed at 64 KB */
unsigned char sector_size_low : 1;
// byte 12
/** write_bl_len fixed for 512 byte blocks */
unsigned char write_bl_len_high : 2;
/** fixed value of 2 */
unsigned char r2w_factor : 3;
/** not used */
unsigned char reserved5 : 2;
/** fixed value of 0 - no write protect groups */
unsigned char wp_grp_enable : 1;
// byte 13
unsigned char reserved6 : 5;
/** always zero - no partial block read*/
unsigned char write_partial : 1;
/** write_bl_len fixed for 512 byte blocks */
unsigned char write_bl_len_low : 2;
// byte 14
unsigned char reserved7: 2;
/** Do not use always 0 */
unsigned char file_format : 2;
unsigned char tmp_write_protect : 1;
unsigned char perm_write_protect : 1;
unsigned char copy : 1;
/** Do not use always 0 */
unsigned char file_format_grp : 1;
// byte 15
/** not used always 1 */
unsigned char always1 : 1;
/** checksum */
unsigned char crc : 7;
}csd2_t;
//------------------------------------------------------------------------------
/** union of old and new style CSD register */
union csd_t {
csd1_t v1;
csd2_t v2;
};
#endif // SdInfo_h
#endif
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