FTE-denshi / Mbed 2 deprecated FTE-06

東北大学学友会準加盟団体 From The Earth の高高度ロケットFTE-06（通称：海豚）にて使用したソフトウェアです．ご自由にお使いください．このプログラムによって生じた損害について当団体は一切責任を負いません．また，各モジュールのライブラリは当団体が作成したものではないので再配布は禁止します．

Dependencies:   mbed FATFileSystem

Fork of FTE-06 by Tetsushi Amano

SDFileSystem/SDFileSystem.h@57:d78497a079cf, 2017-08-25 (annotated)

Committer:
mizuki_akaike
Date:
Fri Aug 25 03:42:30 2017 +0000
Revision:
57:d78497a079cf
Parent:
22:b2e90f18ea55 
??????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mizuki_akaike 22:b2e90f18ea55 1 /* SD/MMC File System Library
mizuki_akaike 22:b2e90f18ea55 2 * Copyright (c) 2016 Neil Thiessen
mizuki_akaike 22:b2e90f18ea55 3 *
mizuki_akaike 22:b2e90f18ea55 4 * Licensed under the Apache License, Version 2.0 (the "License");
mizuki_akaike 22:b2e90f18ea55 5 * you may not use this file except in compliance with the License.
mizuki_akaike 22:b2e90f18ea55 6 * You may obtain a copy of the License at
mizuki_akaike 22:b2e90f18ea55 7 *
mizuki_akaike 22:b2e90f18ea55 8 * http://www.apache.org/licenses/LICENSE-2.0
mizuki_akaike 22:b2e90f18ea55 9 *
mizuki_akaike 22:b2e90f18ea55 10 * Unless required by applicable law or agreed to in writing, software
mizuki_akaike 22:b2e90f18ea55 11 * distributed under the License is distributed on an "AS IS" BASIS,
mizuki_akaike 22:b2e90f18ea55 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mizuki_akaike 22:b2e90f18ea55 13 * See the License for the specific language governing permissions and
mizuki_akaike 22:b2e90f18ea55 14 * limitations under the License.
mizuki_akaike 22:b2e90f18ea55 15 */
mizuki_akaike 22:b2e90f18ea55 16
mizuki_akaike 22:b2e90f18ea55 17 #ifndef SD_FILE_SYSTEM_H
mizuki_akaike 22:b2e90f18ea55 18 #define SD_FILE_SYSTEM_H
mizuki_akaike 22:b2e90f18ea55 19
mizuki_akaike 22:b2e90f18ea55 20 #include "mbed.h"
mizuki_akaike 22:b2e90f18ea55 21 #include "FATFileSystem.h"
mizuki_akaike 22:b2e90f18ea55 22
mizuki_akaike 22:b2e90f18ea55 23 /** SDFileSystem class.
mizuki_akaike 22:b2e90f18ea55 24 * Used for creating a virtual file system for accessing SD/MMC cards via SPI.
mizuki_akaike 22:b2e90f18ea55 25 *
mizuki_akaike 22:b2e90f18ea55 26 * Example:
mizuki_akaike 22:b2e90f18ea55 27 * @code
mizuki_akaike 22:b2e90f18ea55 28 * #include "mbed.h"
mizuki_akaike 22:b2e90f18ea55 29 * #include "SDFileSystem.h"
mizuki_akaike 22:b2e90f18ea55 30 *
mizuki_akaike 22:b2e90f18ea55 31 * //Create an SDFileSystem object
mizuki_akaike 22:b2e90f18ea55 32 * SDFileSystem sd(p5, p6, p7, p20, "sd");
mizuki_akaike 22:b2e90f18ea55 33 *
mizuki_akaike 22:b2e90f18ea55 34 * int main()
mizuki_akaike 22:b2e90f18ea55 35 * {
mizuki_akaike 22:b2e90f18ea55 36 * //Mount the filesystem
mizuki_akaike 22:b2e90f18ea55 37 * sd.mount();
mizuki_akaike 22:b2e90f18ea55 38 *
mizuki_akaike 22:b2e90f18ea55 39 * //Perform a write test
mizuki_akaike 22:b2e90f18ea55 40 * printf("\nWriting to SD card...");
mizuki_akaike 22:b2e90f18ea55 41 * FILE *fp = fopen("/sd/sdtest.txt", "w");
mizuki_akaike 22:b2e90f18ea55 42 * if (fp != NULL) {
mizuki_akaike 22:b2e90f18ea55 43 * fprintf(fp, "We're writing to an SD card!");
mizuki_akaike 22:b2e90f18ea55 44 * fclose(fp);
mizuki_akaike 22:b2e90f18ea55 45 * printf("success!\n");
mizuki_akaike 22:b2e90f18ea55 46 * } else {
mizuki_akaike 22:b2e90f18ea55 47 * printf("failed!\n");
mizuki_akaike 22:b2e90f18ea55 48 * }
mizuki_akaike 22:b2e90f18ea55 49 *
mizuki_akaike 22:b2e90f18ea55 50 * //Perform a read test
mizuki_akaike 22:b2e90f18ea55 51 * printf("Reading from SD card...");
mizuki_akaike 22:b2e90f18ea55 52 * fp = fopen("/sd/sdtest.txt", "r");
mizuki_akaike 22:b2e90f18ea55 53 * if (fp != NULL) {
mizuki_akaike 22:b2e90f18ea55 54 * char c = fgetc(fp);
mizuki_akaike 22:b2e90f18ea55 55 * if (c == 'W')
mizuki_akaike 22:b2e90f18ea55 56 * printf("success!\n");
mizuki_akaike 22:b2e90f18ea55 57 * else
mizuki_akaike 22:b2e90f18ea55 58 * printf("incorrect char (%c)!\n", c);
mizuki_akaike 22:b2e90f18ea55 59 * fclose(fp);
mizuki_akaike 22:b2e90f18ea55 60 * } else {
mizuki_akaike 22:b2e90f18ea55 61 * printf("failed!\n");
mizuki_akaike 22:b2e90f18ea55 62 * }
mizuki_akaike 22:b2e90f18ea55 63 *
mizuki_akaike 22:b2e90f18ea55 64 * //Unmount the filesystem
mizuki_akaike 22:b2e90f18ea55 65 * sd.unmount();
mizuki_akaike 22:b2e90f18ea55 66 * }
mizuki_akaike 22:b2e90f18ea55 67 * @endcode
mizuki_akaike 22:b2e90f18ea55 68 */
mizuki_akaike 22:b2e90f18ea55 69 class SDFileSystem : public FATFileSystem
mizuki_akaike 22:b2e90f18ea55 70 {
mizuki_akaike 22:b2e90f18ea55 71 public:
mizuki_akaike 22:b2e90f18ea55 72 /** Represents the different card detect switch types
mizuki_akaike 22:b2e90f18ea55 73 */
mizuki_akaike 22:b2e90f18ea55 74 enum SwitchType {
mizuki_akaike 22:b2e90f18ea55 75 SWITCH_NONE, /**< No card detect switch (assumes socket is always occupied) */
mizuki_akaike 22:b2e90f18ea55 76 SWITCH_POS_NO, /**< Switch shorts to VDD when the socket is occupied (positive logic, normally open) */
mizuki_akaike 22:b2e90f18ea55 77 SWITCH_POS_NC, /**< Switch shorts to VDD when the socket is empty (positive logic, normally closed) */
mizuki_akaike 22:b2e90f18ea55 78 SWITCH_NEG_NO, /**< Switch shorts to GND when the socket is occupied (negative logic, normally open) */
mizuki_akaike 22:b2e90f18ea55 79 SWITCH_NEG_NC /**< Switch shorts to GND when the socket is empty (negative logic, normally closed) */
mizuki_akaike 22:b2e90f18ea55 80 };
mizuki_akaike 22:b2e90f18ea55 81
mizuki_akaike 22:b2e90f18ea55 82 /** Represents the different SD/MMC card types
mizuki_akaike 22:b2e90f18ea55 83 */
mizuki_akaike 22:b2e90f18ea55 84 enum CardType {
mizuki_akaike 22:b2e90f18ea55 85 CARD_NONE, /**< No card is present */
mizuki_akaike 22:b2e90f18ea55 86 CARD_MMC, /**< MMC card */
mizuki_akaike 22:b2e90f18ea55 87 CARD_SD, /**< Standard capacity SD card */
mizuki_akaike 22:b2e90f18ea55 88 CARD_SDHC, /**< High capacity SD card */
mizuki_akaike 22:b2e90f18ea55 89 CARD_UNKNOWN /**< Unknown or unsupported card */
mizuki_akaike 22:b2e90f18ea55 90 };
mizuki_akaike 22:b2e90f18ea55 91
mizuki_akaike 22:b2e90f18ea55 92 /** Create a virtual file system for accessing SD/MMC cards via SPI
mizuki_akaike 22:b2e90f18ea55 93 *
mizuki_akaike 22:b2e90f18ea55 94 * @param mosi The SPI data out pin.
mizuki_akaike 22:b2e90f18ea55 95 * @param miso The SPI data in pin.
mizuki_akaike 22:b2e90f18ea55 96 * @param sclk The SPI clock pin.
mizuki_akaike 22:b2e90f18ea55 97 * @param cs The SPI chip select pin.
mizuki_akaike 22:b2e90f18ea55 98 * @param name The name used to access the virtual filesystem.
mizuki_akaike 22:b2e90f18ea55 99 * @param cd The card detect pin.
mizuki_akaike 22:b2e90f18ea55 100 * @param cdtype The type of card detect switch.
mizuki_akaike 22:b2e90f18ea55 101 * @param hz The SPI bus frequency (defaults to 1MHz).
mizuki_akaike 22:b2e90f18ea55 102 */
mizuki_akaike 22:b2e90f18ea55 103 SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name, PinName cd = NC, SwitchType cdtype = SWITCH_NONE, int hz = 1000000);
mizuki_akaike 22:b2e90f18ea55 104
mizuki_akaike 22:b2e90f18ea55 105 /** Determine whether or not a card is present
mizuki_akaike 22:b2e90f18ea55 106 *
mizuki_akaike 22:b2e90f18ea55 107 * @returns
mizuki_akaike 22:b2e90f18ea55 108 * 'true' if a card is present,
mizuki_akaike 22:b2e90f18ea55 109 * 'false' if no card is present.
mizuki_akaike 22:b2e90f18ea55 110 */
mizuki_akaike 22:b2e90f18ea55 111 bool card_present();
mizuki_akaike 22:b2e90f18ea55 112
mizuki_akaike 22:b2e90f18ea55 113 /** Get the detected SD/MMC card type
mizuki_akaike 22:b2e90f18ea55 114 *
mizuki_akaike 22:b2e90f18ea55 115 * @returns The detected card type as a CardType enum.
mizuki_akaike 22:b2e90f18ea55 116 *
mizuki_akaike 22:b2e90f18ea55 117 * @note Valid after the filesystem has been mounted.
mizuki_akaike 22:b2e90f18ea55 118 */
mizuki_akaike 22:b2e90f18ea55 119 SDFileSystem::CardType card_type();
mizuki_akaike 22:b2e90f18ea55 120
mizuki_akaike 22:b2e90f18ea55 121 /** Get whether or not CRC is enabled for commands and data
mizuki_akaike 22:b2e90f18ea55 122 *
mizuki_akaike 22:b2e90f18ea55 123 * @returns
mizuki_akaike 22:b2e90f18ea55 124 * 'true' if CRC is enabled for commands and data,
mizuki_akaike 22:b2e90f18ea55 125 * 'false' if CRC is disabled for commands and data.
mizuki_akaike 22:b2e90f18ea55 126 */
mizuki_akaike 22:b2e90f18ea55 127 bool crc();
mizuki_akaike 22:b2e90f18ea55 128
mizuki_akaike 22:b2e90f18ea55 129 /** Set whether or not CRC is enabled for commands and data
mizuki_akaike 22:b2e90f18ea55 130 *
mizuki_akaike 22:b2e90f18ea55 131 * @param enabled Whether or not to enable CRC for commands and data.
mizuki_akaike 22:b2e90f18ea55 132 */
mizuki_akaike 22:b2e90f18ea55 133 void crc(bool enabled);
mizuki_akaike 22:b2e90f18ea55 134
mizuki_akaike 22:b2e90f18ea55 135 /** Get whether or not 16-bit frames are enabled for data read/write operations
mizuki_akaike 22:b2e90f18ea55 136 *
mizuki_akaike 22:b2e90f18ea55 137 * @returns
mizuki_akaike 22:b2e90f18ea55 138 * 'true' if 16-bit frames will be used during data read/write operations,
mizuki_akaike 22:b2e90f18ea55 139 * 'false' if 8-bit frames will be used during data read/write operations.
mizuki_akaike 22:b2e90f18ea55 140 */
mizuki_akaike 22:b2e90f18ea55 141 bool large_frames();
mizuki_akaike 22:b2e90f18ea55 142
mizuki_akaike 22:b2e90f18ea55 143 /** Set whether or not 16-bit frames are enabled for data read/write operations
mizuki_akaike 22:b2e90f18ea55 144 *
mizuki_akaike 22:b2e90f18ea55 145 * @param enabled Whether or not 16-bit frames are enabled for data read/write operations.
mizuki_akaike 22:b2e90f18ea55 146 */
mizuki_akaike 22:b2e90f18ea55 147 void large_frames(bool enabled);
mizuki_akaike 22:b2e90f18ea55 148
mizuki_akaike 22:b2e90f18ea55 149 /** Get whether or not write validation is enabled for data write operations
mizuki_akaike 22:b2e90f18ea55 150 *
mizuki_akaike 22:b2e90f18ea55 151 * @returns
mizuki_akaike 22:b2e90f18ea55 152 * 'true' if data writes will be verified using CMD13,
mizuki_akaike 22:b2e90f18ea55 153 * 'false' if data writes will not be verified.
mizuki_akaike 22:b2e90f18ea55 154 */
mizuki_akaike 22:b2e90f18ea55 155 bool write_validation();
mizuki_akaike 22:b2e90f18ea55 156
mizuki_akaike 22:b2e90f18ea55 157 /** Set whether or not write validation is enabled for data write operations
mizuki_akaike 22:b2e90f18ea55 158 *
mizuki_akaike 22:b2e90f18ea55 159 * @param enabled Whether or not write validation is enabled for data write operations.
mizuki_akaike 22:b2e90f18ea55 160 */
mizuki_akaike 22:b2e90f18ea55 161 void write_validation(bool enabled);
mizuki_akaike 22:b2e90f18ea55 162
mizuki_akaike 22:b2e90f18ea55 163 virtual int unmount();
mizuki_akaike 22:b2e90f18ea55 164 virtual int disk_initialize();
mizuki_akaike 22:b2e90f18ea55 165 virtual int disk_status();
mizuki_akaike 22:b2e90f18ea55 166 virtual int disk_read(uint8_t* buffer, uint32_t sector, uint32_t count);
mizuki_akaike 22:b2e90f18ea55 167 virtual int disk_write(const uint8_t* buffer, uint32_t sector, uint32_t count);
mizuki_akaike 22:b2e90f18ea55 168 virtual int disk_sync();
mizuki_akaike 22:b2e90f18ea55 169 virtual uint32_t disk_sectors();
mizuki_akaike 22:b2e90f18ea55 170
mizuki_akaike 22:b2e90f18ea55 171 private:
mizuki_akaike 22:b2e90f18ea55 172 //Commands
mizuki_akaike 22:b2e90f18ea55 173 enum Command {
mizuki_akaike 22:b2e90f18ea55 174 CMD0 = (0x40 | 0), /**< GO_IDLE_STATE */
mizuki_akaike 22:b2e90f18ea55 175 CMD1 = (0x40 | 1), /**< SEND_OP_COND */
mizuki_akaike 22:b2e90f18ea55 176 CMD6 = (0x40 | 6), /**< SWITCH_FUNC */
mizuki_akaike 22:b2e90f18ea55 177 CMD8 = (0x40 | 8), /**< SEND_IF_COND */
mizuki_akaike 22:b2e90f18ea55 178 CMD9 = (0x40 | 9), /**< SEND_CSD */
mizuki_akaike 22:b2e90f18ea55 179 CMD12 = (0x40 | 12), /**< STOP_TRANSMISSION */
mizuki_akaike 22:b2e90f18ea55 180 CMD13 = (0x40 | 13), /**< SEND_STATUS */
mizuki_akaike 22:b2e90f18ea55 181 CMD16 = (0x40 | 16), /**< SET_BLOCKLEN */
mizuki_akaike 22:b2e90f18ea55 182 CMD17 = (0x40 | 17), /**< READ_SINGLE_BLOCK */
mizuki_akaike 22:b2e90f18ea55 183 CMD18 = (0x40 | 18), /**< READ_MULTIPLE_BLOCK */
mizuki_akaike 22:b2e90f18ea55 184 ACMD22 = (0x40 | 22), /**< SEND_NUM_WR_BLOCKS */
mizuki_akaike 22:b2e90f18ea55 185 ACMD23 = (0x40 | 23), /**< SET_WR_BLK_ERASE_COUNT */
mizuki_akaike 22:b2e90f18ea55 186 CMD24 = (0x40 | 24), /**< WRITE_BLOCK */
mizuki_akaike 22:b2e90f18ea55 187 CMD25 = (0x40 | 25), /**< WRITE_MULTIPLE_BLOCK */
mizuki_akaike 22:b2e90f18ea55 188 ACMD41 = (0x40 | 41), /**< SD_SEND_OP_COND */
mizuki_akaike 22:b2e90f18ea55 189 ACMD42 = (0x40 | 42), /**< SET_CLR_CARD_DETECT */
mizuki_akaike 22:b2e90f18ea55 190 CMD55 = (0x40 | 55), /**< APP_CMD */
mizuki_akaike 22:b2e90f18ea55 191 CMD58 = (0x40 | 58), /**< READ_OCR */
mizuki_akaike 22:b2e90f18ea55 192 CMD59 = (0x40 | 59) /**< CRC_ON_OFF */
mizuki_akaike 22:b2e90f18ea55 193 };
mizuki_akaike 22:b2e90f18ea55 194
mizuki_akaike 22:b2e90f18ea55 195 //Member variables
mizuki_akaike 22:b2e90f18ea55 196 Timer m_Timer;
mizuki_akaike 22:b2e90f18ea55 197 SPI m_Spi;
mizuki_akaike 22:b2e90f18ea55 198 DigitalOut m_Cs;
mizuki_akaike 22:b2e90f18ea55 199 InterruptIn m_Cd;
mizuki_akaike 22:b2e90f18ea55 200 int m_CdAssert;
mizuki_akaike 22:b2e90f18ea55 201 const int m_FREQ;
mizuki_akaike 22:b2e90f18ea55 202 SDFileSystem::CardType m_CardType;
mizuki_akaike 22:b2e90f18ea55 203 bool m_Crc;
mizuki_akaike 22:b2e90f18ea55 204 bool m_LargeFrames;
mizuki_akaike 22:b2e90f18ea55 205 bool m_WriteValidation;
mizuki_akaike 22:b2e90f18ea55 206 int m_Status;
mizuki_akaike 22:b2e90f18ea55 207
mizuki_akaike 22:b2e90f18ea55 208 //Internal methods
mizuki_akaike 22:b2e90f18ea55 209 void onCardRemoval();
mizuki_akaike 22:b2e90f18ea55 210 void checkSocket();
mizuki_akaike 22:b2e90f18ea55 211 bool waitReady(int timeout);
mizuki_akaike 22:b2e90f18ea55 212 bool select();
mizuki_akaike 22:b2e90f18ea55 213 void deselect();
mizuki_akaike 22:b2e90f18ea55 214 char commandTransaction(char cmd, unsigned int arg, unsigned int* resp = NULL);
mizuki_akaike 22:b2e90f18ea55 215 char writeCommand(char cmd, unsigned int arg, unsigned int* resp = NULL);
mizuki_akaike 22:b2e90f18ea55 216 bool readData(char* buffer, int length);
mizuki_akaike 22:b2e90f18ea55 217 char writeData(const char* buffer, char token);
mizuki_akaike 22:b2e90f18ea55 218 bool readBlock(char* buffer, unsigned int lba);
mizuki_akaike 22:b2e90f18ea55 219 bool readBlocks(char* buffer, unsigned int lba, unsigned int count);
mizuki_akaike 22:b2e90f18ea55 220 bool writeBlock(const char* buffer, unsigned int lba);
mizuki_akaike 22:b2e90f18ea55 221 bool writeBlocks(const char* buffer, unsigned int lba, unsigned int count);
mizuki_akaike 22:b2e90f18ea55 222 bool enableHighSpeedMode();
mizuki_akaike 22:b2e90f18ea55 223 };
mizuki_akaike 22:b2e90f18ea55 224
mizuki_akaike 22:b2e90f18ea55 225 #endif