266 lines
8.3 KiB
C
266 lines
8.3 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#pragma once
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/**
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* Arduino Sd2Card Library
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* Copyright (c) 2009 by William Greiman
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*
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* This file is part of the Arduino Sd2Card Library
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*/
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#include <stdint.h>
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// Based on the document:
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//
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// SD Specifications
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// Part 1
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// Physical Layer
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// Simplified Specification
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// Version 3.01
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// May 18, 2010
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//
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// http://www.sdcard.org/developers/tech/sdcard/pls/simplified_specs
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// SD card commands
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uint8_t const CMD0 = 0x00, // GO_IDLE_STATE - init card in spi mode if CS low
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CMD8 = 0x08, // SEND_IF_COND - verify SD Memory Card interface operating condition
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CMD9 = 0x09, // SEND_CSD - read the Card Specific Data (CSD register)
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CMD10 = 0x0A, // SEND_CID - read the card identification information (CID register)
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CMD12 = 0x0C, // STOP_TRANSMISSION - end multiple block read sequence
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CMD13 = 0x0D, // SEND_STATUS - read the card status register
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CMD17 = 0x11, // READ_SINGLE_BLOCK - read a single data block from the card
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CMD18 = 0x12, // READ_MULTIPLE_BLOCK - read a multiple data blocks from the card
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CMD24 = 0x18, // WRITE_BLOCK - write a single data block to the card
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CMD25 = 0x19, // WRITE_MULTIPLE_BLOCK - write blocks of data until a STOP_TRANSMISSION
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CMD32 = 0x20, // ERASE_WR_BLK_START - sets the address of the first block to be erased
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CMD33 = 0x21, // ERASE_WR_BLK_END - sets the address of the last block of the continuous range to be erased
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CMD38 = 0x26, // ERASE - erase all previously selected blocks
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CMD55 = 0x37, // APP_CMD - escape for application specific command
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CMD58 = 0x3A, // READ_OCR - read the OCR register of a card
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CMD59 = 0x3B, // CRC_ON_OFF - enable or disable CRC checking
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ACMD23 = 0x17, // SET_WR_BLK_ERASE_COUNT - Set the number of write blocks to be pre-erased before writing
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ACMD41 = 0x29; // SD_SEND_OP_COMD - Sends host capacity support information and activates the card's initialization process
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/** status for card in the ready state */
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uint8_t const R1_READY_STATE = 0x00;
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/** status for card in the idle state */
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uint8_t const R1_IDLE_STATE = 0x01;
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/** status bit for illegal command */
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uint8_t const R1_ILLEGAL_COMMAND = 0x04;
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/** start data token for read or write single block*/
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uint8_t const DATA_START_BLOCK = 0xFE;
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/** stop token for write multiple blocks*/
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uint8_t const STOP_TRAN_TOKEN = 0xFD;
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/** start data token for write multiple blocks*/
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uint8_t const WRITE_MULTIPLE_TOKEN = 0xFC;
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/** mask for data response tokens after a write block operation */
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uint8_t const DATA_RES_MASK = 0x1F;
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/** write data accepted token */
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uint8_t const DATA_RES_ACCEPTED = 0x05;
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/** Card IDentification (CID) register */
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typedef struct CID {
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// byte 0
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/** Manufacturer ID */
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unsigned char mid;
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// byte 1-2
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/** OEM/Application ID */
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char oid[2];
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// byte 3-7
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/** Product name */
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char pnm[5];
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// byte 8
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/** Product revision least significant digit */
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unsigned char prv_m : 4;
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/** Product revision most significant digit */
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unsigned char prv_n : 4;
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// byte 9-12
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/** Product serial number */
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uint32_t psn;
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// byte 13
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/** Manufacturing date year low digit */
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unsigned char mdt_year_high : 4;
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/** not used */
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unsigned char reserved : 4;
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// byte 14
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/** Manufacturing date month */
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unsigned char mdt_month : 4;
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/** Manufacturing date year low digit */
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unsigned char mdt_year_low : 4;
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// byte 15
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/** not used always 1 */
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unsigned char always1 : 1;
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/** CRC7 checksum */
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unsigned char crc : 7;
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} cid_t;
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/** CSD for version 1.00 cards */
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typedef struct CSDV1 {
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// byte 0
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unsigned char reserved1 : 6;
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unsigned char csd_ver : 2;
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// byte 1
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unsigned char taac;
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// byte 2
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unsigned char nsac;
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// byte 3
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unsigned char tran_speed;
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// byte 4
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unsigned char ccc_high;
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// byte 5
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unsigned char read_bl_len : 4;
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unsigned char ccc_low : 4;
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// byte 6
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unsigned char c_size_high : 2;
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unsigned char reserved2 : 2;
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unsigned char dsr_imp : 1;
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unsigned char read_blk_misalign : 1;
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unsigned char write_blk_misalign : 1;
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unsigned char read_bl_partial : 1;
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// byte 7
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unsigned char c_size_mid;
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// byte 8
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unsigned char vdd_r_curr_max : 3;
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unsigned char vdd_r_curr_min : 3;
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unsigned char c_size_low : 2;
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// byte 9
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unsigned char c_size_mult_high : 2;
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unsigned char vdd_w_cur_max : 3;
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unsigned char vdd_w_curr_min : 3;
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// byte 10
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unsigned char sector_size_high : 6;
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unsigned char erase_blk_en : 1;
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unsigned char c_size_mult_low : 1;
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// byte 11
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unsigned char wp_grp_size : 7;
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unsigned char sector_size_low : 1;
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// byte 12
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unsigned char write_bl_len_high : 2;
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unsigned char r2w_factor : 3;
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unsigned char reserved3 : 2;
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unsigned char wp_grp_enable : 1;
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// byte 13
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unsigned char reserved4 : 5;
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unsigned char write_partial : 1;
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unsigned char write_bl_len_low : 2;
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// byte 14
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unsigned char reserved5: 2;
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unsigned char file_format : 2;
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unsigned char tmp_write_protect : 1;
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unsigned char perm_write_protect : 1;
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unsigned char copy : 1;
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/** Indicates the file format on the card */
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unsigned char file_format_grp : 1;
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// byte 15
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unsigned char always1 : 1;
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unsigned char crc : 7;
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} csd1_t;
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/** CSD for version 2.00 cards */
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typedef struct CSDV2 {
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// byte 0
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unsigned char reserved1 : 6;
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unsigned char csd_ver : 2;
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// byte 1
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/** fixed to 0x0E */
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unsigned char taac;
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// byte 2
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/** fixed to 0 */
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unsigned char nsac;
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// byte 3
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unsigned char tran_speed;
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// byte 4
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unsigned char ccc_high;
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// byte 5
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/** This field is fixed to 9h, which indicates READ_BL_LEN=512 Byte */
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unsigned char read_bl_len : 4;
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unsigned char ccc_low : 4;
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// byte 6
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/** not used */
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unsigned char reserved2 : 4;
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unsigned char dsr_imp : 1;
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/** fixed to 0 */
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unsigned char read_blk_misalign : 1;
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/** fixed to 0 */
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unsigned char write_blk_misalign : 1;
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/** fixed to 0 - no partial read */
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unsigned char read_bl_partial : 1;
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// byte 7
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/** not used */
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unsigned char reserved3 : 2;
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/** high part of card size */
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unsigned char c_size_high : 6;
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// byte 8
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/** middle part of card size */
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unsigned char c_size_mid;
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// byte 9
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/** low part of card size */
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unsigned char c_size_low;
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// byte 10
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/** sector size is fixed at 64 KB */
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unsigned char sector_size_high : 6;
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/** fixed to 1 - erase single is supported */
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unsigned char erase_blk_en : 1;
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/** not used */
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unsigned char reserved4 : 1;
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// byte 11
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unsigned char wp_grp_size : 7;
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/** sector size is fixed at 64 KB */
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unsigned char sector_size_low : 1;
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// byte 12
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/** write_bl_len fixed for 512 byte blocks */
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unsigned char write_bl_len_high : 2;
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/** fixed value of 2 */
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unsigned char r2w_factor : 3;
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/** not used */
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unsigned char reserved5 : 2;
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/** fixed value of 0 - no write protect groups */
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unsigned char wp_grp_enable : 1;
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// byte 13
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unsigned char reserved6 : 5;
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/** always zero - no partial block read*/
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unsigned char write_partial : 1;
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/** write_bl_len fixed for 512 byte blocks */
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unsigned char write_bl_len_low : 2;
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// byte 14
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unsigned char reserved7: 2;
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/** Do not use always 0 */
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unsigned char file_format : 2;
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unsigned char tmp_write_protect : 1;
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unsigned char perm_write_protect : 1;
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unsigned char copy : 1;
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/** Do not use always 0 */
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unsigned char file_format_grp : 1;
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// byte 15
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/** not used always 1 */
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unsigned char always1 : 1;
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/** checksum */
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unsigned char crc : 7;
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} csd2_t;
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/** union of old and new style CSD register */
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union csd_t {
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csd1_t v1;
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csd2_t v2;
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};
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