SdInfo.h

/* 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
uint8_t const CMD0 = 0X00;
uint8_t const CMD8 = 0X08;
uint8_t const CMD9 = 0X09;
uint8_t const CMD10 = 0X0A;
uint8_t const CMD12 = 0X0C;
uint8_t const CMD13 = 0X0D;
uint8_t const CMD17 = 0X11;
uint8_t const CMD18 = 0X12;
uint8_t const CMD24 = 0X18;
uint8_t const CMD25 = 0X19;
uint8_t const CMD32 = 0X20;
uint8_t const CMD33 = 0X21;
uint8_t const CMD38 = 0X26;
 
uint8_t const CMD48 = 0x30;
uint8_t const CMD49 = 0x31;
 
uint8_t const CMD55 = 0X37;
uint8_t const CMD58 = 0X3A;
uint8_t const ACMD23 = 0X17;
uint8_t const ACMD41 = 0X29;
//------------------------------------------------------------------------------
uint8_t const R1_READY_STATE = 0X00;
uint8_t const R1_IDLE_STATE = 0X01;
uint8_t const R1_ILLEGAL_COMMAND = 0X04;
uint8_t const DATA_START_BLOCK = 0XFE;
uint8_t const STOP_TRAN_TOKEN = 0XFD;
uint8_t const WRITE_MULTIPLE_TOKEN = 0XFC;
uint8_t const DATA_RES_MASK = 0X1F;
uint8_t const DATA_RES_ACCEPTED = 0X05;
//------------------------------------------------------------------------------
typedef struct CID {
  // byte 0
  unsigned char mid;
  // byte 1-2
  char oid[2];
  // byte 3-7
  char pnm[5];
  // byte 8
  unsigned char prv_m : 4;
  unsigned char prv_n : 4;
  // byte 9-12
  uint32_t psn;
  // byte 13
  unsigned char mdt_year_high : 4;
  unsigned char reserved : 4;
  // byte 14
  unsigned char mdt_month : 4;
  unsigned char mdt_year_low :4;
  // byte 15
  unsigned char always1 : 1;
  unsigned char crc : 7;
}cid_t;
//------------------------------------------------------------------------------
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;
  unsigned char file_format_grp : 1;
  // byte 15
  unsigned char always1 : 1;
  unsigned char crc : 7;
}csd1_t;
//------------------------------------------------------------------------------
typedef struct CSDV2 {
  // 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 reserved2 : 4;
  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 reserved3 : 2;
  unsigned char c_size_high : 6;
  // byte 8
  unsigned char c_size_mid;
  // byte 9
  unsigned char c_size_low;
  // byte 10
  unsigned char sector_size_high : 6;
  unsigned char erase_blk_en : 1;
  unsigned char reserved4 : 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 reserved5 : 2;
  unsigned char wp_grp_enable : 1;
  // byte 13
  unsigned char reserved6 : 5;
  unsigned char write_partial : 1;
  unsigned char write_bl_len_low : 2;
  // byte 14
  unsigned char reserved7: 2;
  unsigned char file_format : 2;
  unsigned char tmp_write_protect : 1;
  unsigned char perm_write_protect : 1;
  unsigned char copy : 1;
  unsigned char file_format_grp : 1;
  // byte 15
  unsigned char always1 : 1;
  unsigned char crc : 7;
}csd2_t;
//------------------------------------------------------------------------------
union csd_t {
  csd1_t v1;
  csd2_t v2;
};
#endif  // SdInfo_h
 
#endif