samp Srinivasan / Mbed 2 deprecated CDMS_CODE_FM_28JAN2017

FM

Dependencies:   SimpleDMA eeprom mbed-rtos mbed FreescaleIAP

Fork of CDMS_CODE by shubham c

cdms_sd.h@190:3b924ffa4d19, 2016-06-28 (annotated)

Committer:
ee12b079
Date:
Tue Jun 28 05:40:08 2016 +0000
Revision:
190:3b924ffa4d19
Parent:
174:44a6d7c7674c 
Testing SDCARD functionalities

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ee12b079 86:a26f5f22631d 1
ee12b079 86:a26f5f22631d 2
ee12b079 86:a26f5f22631d 3
ee12b079 86:a26f5f22631d 4 //SPI spi(PTE1, PTE3, PTE2); // MOSI,MISO, CLOCK microcontroller(in order)
ee12b079 86:a26f5f22631d 5 //DigitalOut cs_sd(PTE22);
ee12b079 86:a26f5f22631d 6
ee12b079 86:a26f5f22631d 7 //Serial sd1(USBTX,USBRX);
ee12b079 86:a26f5f22631d 8
ee12b079 86:a26f5f22631d 9
ee12b079 86:a26f5f22631d 10 #define SD_COMMAND_TIMEOUT 5000
ee12b079 86:a26f5f22631d 11
ee12b079 86:a26f5f22631d 12 #define SD_DBG 0
ee12b079 86:a26f5f22631d 13
ee12b079 86:a26f5f22631d 14 #define R1_IDLE_STATE (1 << 0)
ee12b079 86:a26f5f22631d 15 #define R1_ERASE_RESET (1 << 1)
ee12b079 86:a26f5f22631d 16 #define R1_ILLEGAL_COMMAND (1 << 2)
ee12b079 86:a26f5f22631d 17 #define R1_COM_CRC_ERROR (1 << 3)
ee12b079 86:a26f5f22631d 18 #define R1_ERASE_SEQUENCE_ERROR (1 << 4)
ee12b079 86:a26f5f22631d 19 #define R1_ADDRESS_ERROR (1 << 5)
ee12b079 86:a26f5f22631d 20 #define R1_PARAMETER_ERROR (1 << 6)
ee12b079 86:a26f5f22631d 21
ee12b079 86:a26f5f22631d 22
ee12b079 86:a26f5f22631d 23
ee12b079 86:a26f5f22631d 24 #define SD_MAX_CYCLES 10000
ee12b079 86:a26f5f22631d 25
ee12b079 86:a26f5f22631d 26 extern uint8_t SD_INIT_FLAGS;
ee12b079 86:a26f5f22631d 27
ee12b079 86:a26f5f22631d 28
ee12b079 86:a26f5f22631d 29
ee12b079 86:a26f5f22631d 30 int initialise_card();
ee12b079 86:a26f5f22631d 31 int initialise_card_v1();
ee12b079 86:a26f5f22631d 32 int initialise_card_v2();
ee12b079 86:a26f5f22631d 33 int disk_write(const uint8_t *, uint64_t);
ee12b079 86:a26f5f22631d 34 int disk_read(uint8_t *, uint64_t);
ee12b079 86:a26f5f22631d 35 int disk_initialize();
ee12b079 86:a26f5f22631d 36 int disk_erase(int,int);
ee12b079 86:a26f5f22631d 37
ee12b079 86:a26f5f22631d 38 //void FCTN_CDMS_INIT_SD();
ee12b079 86:a26f5f22631d 39 //int FCTN_CDMS_WR_SD(const uint8_t *, uint64_t);
ee12b079 86:a26f5f22631d 40 //int FCTN_CDMS_RD_SD(uint8_t *, uint64_t);
ee12b079 92:bce22b38c440 41 uint32_t FCTN_SD_MNGR(uint8_t);
ee12b079 86:a26f5f22631d 42
ee12b079 86:a26f5f22631d 43
ee12b079 86:a26f5f22631d 44 int cmd(int, int);
ee12b079 86:a26f5f22631d 45 int cmd58();
ee12b079 86:a26f5f22631d 46 int cmdx(int, int);
ee12b079 86:a26f5f22631d 47 int cmd8();
ee12b079 86:a26f5f22631d 48 int read(uint8_t*, uint32_t );
ee12b079 86:a26f5f22631d 49 int write(const uint8_t*, uint32_t );
ee12b079 86:a26f5f22631d 50 static uint32_t ext_bits(unsigned char *, int , int );
ee12b079 92:bce22b38c440 51 int SD_WRITE(uint8_t*,uint32_t,uint8_t);
ee12b079 86:a26f5f22631d 52 void FCTN_CDMS_SD_INIT();
ee12b079 92:bce22b38c440 53 int SD_READ(uint8_t*,uint32_t,uint8_t);
ee12b079 86:a26f5f22631d 54 #define SDCARD_FAIL 0
ee12b079 86:a26f5f22631d 55 #define SDCARD_V1 1
ee12b079 86:a26f5f22631d 56 #define SDCARD_V2 2
ee12b079 86:a26f5f22631d 57 #define SDCARD_V2HC 3
ee12b079 86:a26f5f22631d 58
ee12b079 86:a26f5f22631d 59
ee12b079 86:a26f5f22631d 60
ee12b079 86:a26f5f22631d 61
ee12b079 86:a26f5f22631d 62
ee12b079 86:a26f5f22631d 63
ee12b079 86:a26f5f22631d 64
ee12b079 86:a26f5f22631d 65
ee12b079 86:a26f5f22631d 66
ee12b079 86:a26f5f22631d 67
ee12b079 86:a26f5f22631d 68
ee12b079 86:a26f5f22631d 69 int cdv;
ee12b079 86:a26f5f22631d 70 uint64_t sd_sectors();
ee12b079 86:a26f5f22631d 71 uint64_t sectors;
ee12b079 86:a26f5f22631d 72
ee12b079 86:a26f5f22631d 73 void FCTN_CDMS_SD_INIT()
ee12b079 86:a26f5f22631d 74 {
ee12b079 86:a26f5f22631d 75
ee12b079 86:a26f5f22631d 76 initialise_card();
ee12b079 86:a26f5f22631d 77
ee12b079 86:a26f5f22631d 78 disk_initialize();
ee12b079 86:a26f5f22631d 79
ee12b079 86:a26f5f22631d 80 }
ee12b079 86:a26f5f22631d 81
ee12b079 86:a26f5f22631d 82
ee12b079 86:a26f5f22631d 83
ee12b079 92:bce22b38c440 84 uint32_t FCTN_SD_MNGR(uint8_t sid)
ee12b079 86:a26f5f22631d 85
ee12b079 86:a26f5f22631d 86 {
ee12b079 92:bce22b38c440 87
ee12b079 86:a26f5f22631d 88 uint32_t SD_MNG_SECT=7000;
ee12b079 92:bce22b38c440 89
ee12b079 92:bce22b38c440 90 uint32_t fsc;
ee12b079 190:3b924ffa4d19 91 uint32_t temp;
ee12b079 92:bce22b38c440 92 uint8_t buffer[512];
ee12b079 92:bce22b38c440 93 int b=disk_read(buffer, SD_MNG_SECT);
ee12b079 86:a26f5f22631d 94 if(sid==0x0)
ee12b079 86:a26f5f22631d 95 {
ee12b079 92:bce22b38c440 96 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
ee12b079 92:bce22b38c440 97 uint32_t next_fsc=fsc+1;
ee12b079 92:bce22b38c440 98 buffer[0]=(uint8_t) (next_fsc>>24 & 0xFF);
ee12b079 92:bce22b38c440 99 buffer[1]=(uint8_t) (next_fsc>>16 & 0xFF);
ee12b079 92:bce22b38c440 100 buffer[2]=(uint8_t) (next_fsc>>8 & 0xFF);
ee12b079 92:bce22b38c440 101 buffer[3]=(uint8_t) (next_fsc & 0xFF);
ee12b079 86:a26f5f22631d 102 buffer[511]+=2;
ee12b079 86:a26f5f22631d 103 disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 104 }
ee12b079 86:a26f5f22631d 105 if(sid==0x1)
ee12b079 86:a26f5f22631d 106 {
ee12b079 92:bce22b38c440 107 fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
ee12b079 92:bce22b38c440 108 uint32_t next_fsc=fsc+1;
ee12b079 92:bce22b38c440 109 buffer[4]=(uint8_t) (next_fsc>>24 & 0xFF);
ee12b079 92:bce22b38c440 110 buffer[5]=(uint8_t) (next_fsc>>16 & 0xFF);
ee12b079 92:bce22b38c440 111 buffer[6]=(uint8_t) (next_fsc>>8 & 0xFF);
ee12b079 92:bce22b38c440 112 buffer[7]=(uint8_t) (next_fsc & 0xFF);
ee12b079 86:a26f5f22631d 113 buffer[511]+=2;
ee12b079 86:a26f5f22631d 114 disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 115 }
ee12b079 86:a26f5f22631d 116 if(sid==0x2)
ee12b079 86:a26f5f22631d 117 {
ee12b079 92:bce22b38c440 118 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
ee12b079 92:bce22b38c440 119 uint32_t next_fsc=fsc+1;
ee12b079 92:bce22b38c440 120 buffer[8]=(uint8_t) (next_fsc>>24 & 0xFF);
ee12b079 92:bce22b38c440 121 buffer[9]=(uint8_t) (next_fsc>>16 & 0xFF);
ee12b079 92:bce22b38c440 122 buffer[10]=(uint8_t) (next_fsc>>8 & 0xFF);
ee12b079 92:bce22b38c440 123 buffer[11]=(uint8_t) (next_fsc & 0xFF);
ee12b079 86:a26f5f22631d 124 buffer[511]+=2;
ee12b079 86:a26f5f22631d 125 disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 126 }
ee12b079 86:a26f5f22631d 127 if(sid==0x3)
ee12b079 86:a26f5f22631d 128 {
ee12b079 92:bce22b38c440 129 fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
ee12b079 92:bce22b38c440 130 uint32_t next_fsc=fsc+1;
ee12b079 92:bce22b38c440 131 buffer[12]=(uint8_t) (next_fsc>>24 & 0xFF);
ee12b079 92:bce22b38c440 132 buffer[13]=(uint8_t) (next_fsc>>16 & 0xFF);
ee12b079 92:bce22b38c440 133 buffer[14]=(uint8_t) (next_fsc>>8 & 0xFF);
ee12b079 92:bce22b38c440 134 buffer[15]=(uint8_t) (next_fsc & 0xFF);
ee12b079 86:a26f5f22631d 135 buffer[511]+=2;
ee12b079 86:a26f5f22631d 136 disk_write(buffer,SD_MNG_SECT);
ee12b079 190:3b924ffa4d19 137 disk_read(buffer, SD_MNG_SECT);
ee12b079 190:3b924ffa4d19 138 temp=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
ee12b079 190:3b924ffa4d19 139 gPC.printf("%d %d %d",fsc,next_fsc,temp);
ee12b079 190:3b924ffa4d19 140
ee12b079 86:a26f5f22631d 141 }
ee12b079 86:a26f5f22631d 142 if(sid==0x4)
ee12b079 86:a26f5f22631d 143 {
ee12b079 92:bce22b38c440 144 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
ee12b079 190:3b924ffa4d19 145 uint32_t next_fsc=fsc+1;
ee12b079 92:bce22b38c440 146 buffer[16]=(uint8_t) (next_fsc>>24 & 0xFF);
ee12b079 92:bce22b38c440 147 buffer[17]=(uint8_t) (next_fsc>>16 & 0xFF);
ee12b079 92:bce22b38c440 148 buffer[18]=(uint8_t) (next_fsc>>8 & 0xFF);
ee12b079 92:bce22b38c440 149 buffer[19]=(uint8_t) (next_fsc & 0xFF);
ee12b079 86:a26f5f22631d 150 buffer[511]+=2;
ee12b079 86:a26f5f22631d 151 disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 152 }
ee12b079 86:a26f5f22631d 153 return fsc;
ee12b079 86:a26f5f22631d 154 }
ee12b079 86:a26f5f22631d 155
ee12b079 86:a26f5f22631d 156
ee12b079 92:bce22b38c440 157 int SD_WRITE(uint8_t* buffer,uint32_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 158 {
ee12b079 86:a26f5f22631d 159
ee12b079 86:a26f5f22631d 160 uint32_t SD_SCP_FIRST=1001;
ee12b079 86:a26f5f22631d 161 uint32_t SD_SCP_LAST=2000;
ee12b079 86:a26f5f22631d 162 uint32_t SD_SFF_AT_FIRST=2001;
ee12b079 86:a26f5f22631d 163 uint32_t SD_SFF_AT_LAST = 3000;
ee12b079 86:a26f5f22631d 164 uint32_t SD_SFF_BT_FIRST =3001;
ee12b079 86:a26f5f22631d 165 uint32_t SD_SFF_BT_LAST=4000;
ee12b079 86:a26f5f22631d 166 uint32_t SD_HK_ARCH_FIRST=4001;
ee12b079 86:a26f5f22631d 167 uint32_t SD_HK_ARCH_LAST= 5000;
ee12b079 86:a26f5f22631d 168 uint32_t LOG_FIRST =5001;
ee12b079 86:a26f5f22631d 169 uint32_t LOG_LAST=6000;
ee12b079 86:a26f5f22631d 170 uint32_t SD_MNG_SECT=7000;
ee12b079 86:a26f5f22631d 171 uint32_t block_number;
ee12b079 86:a26f5f22631d 172 int result;
ee12b079 86:a26f5f22631d 173 if(sid==0x0)
ee12b079 86:a26f5f22631d 174 {
ee12b079 92:bce22b38c440 175 block_number=SD_SCP_FIRST+fsc;
ee12b079 86:a26f5f22631d 176 // printf("write_block_number=%d\r\n",block_number);
ee12b079 86:a26f5f22631d 177 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 178 return result;
ee12b079 86:a26f5f22631d 179 }
ee12b079 86:a26f5f22631d 180 if(sid==0x1)
ee12b079 86:a26f5f22631d 181 {
ee12b079 86:a26f5f22631d 182 block_number=SD_SFF_AT_FIRST + fsc;
ee12b079 86:a26f5f22631d 183 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 184 return result;
ee12b079 86:a26f5f22631d 185 }
ee12b079 86:a26f5f22631d 186 if(sid==0x2)
ee12b079 86:a26f5f22631d 187 {
ee12b079 86:a26f5f22631d 188 block_number=SD_SFF_BT_FIRST + fsc;
ee12b079 86:a26f5f22631d 189 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 190 return result;
ee12b079 86:a26f5f22631d 191 }
ee12b079 86:a26f5f22631d 192 if(sid==0x3)
ee12b079 86:a26f5f22631d 193 {
ee12b079 86:a26f5f22631d 194 block_number=SD_HK_ARCH_FIRST+fsc;
ee12b079 86:a26f5f22631d 195 // sd1.printf("Block number is %d \r\n",block_number);
ee12b079 86:a26f5f22631d 196 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 197 return result;
ee12b079 86:a26f5f22631d 198 }
ee12b079 86:a26f5f22631d 199 if(sid==0x4)
ee12b079 86:a26f5f22631d 200 {
ee12b079 86:a26f5f22631d 201 block_number=LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 202 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 203 return result;
ee12b079 86:a26f5f22631d 204 }
ee12b079 86:a26f5f22631d 205 return 1;
ee12b079 86:a26f5f22631d 206 }
ee12b079 86:a26f5f22631d 207
ee12b079 92:bce22b38c440 208 int SD_READ(uint8_t* buffer,uint32_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 209 {
ee12b079 86:a26f5f22631d 210
ee12b079 86:a26f5f22631d 211 uint32_t SD_SCP_FIRST=1001;
ee12b079 86:a26f5f22631d 212 uint32_t SD_SCP_LAST=2000;
ee12b079 86:a26f5f22631d 213 uint32_t SD_SFF_AT_FIRST=2001;
ee12b079 86:a26f5f22631d 214 uint32_t SD_SFF_AT_LAST = 3000;
ee12b079 86:a26f5f22631d 215 uint32_t SD_SFF_BT_FIRST =3001;
ee12b079 86:a26f5f22631d 216 uint32_t SD_SFF_BT_LAST=4000;
ee12b079 86:a26f5f22631d 217 uint32_t SD_HK_ARCH_FIRST=4001;
ee12b079 86:a26f5f22631d 218 uint32_t SD_HK_ARCH_LAST= 5000;
ee12b079 86:a26f5f22631d 219 uint32_t LOG_FIRST =5001;
ee12b079 86:a26f5f22631d 220 uint32_t LOG_LAST=6000;
ee12b079 86:a26f5f22631d 221 uint32_t SD_MNG_SECT=7000;
ee12b079 86:a26f5f22631d 222 uint32_t block_number;
ee12b079 86:a26f5f22631d 223 int result;
ee12b079 86:a26f5f22631d 224 if(sid==0x0)
ee12b079 86:a26f5f22631d 225 {
ee12b079 92:bce22b38c440 226 block_number=SD_SCP_FIRST + fsc;
ee12b079 86:a26f5f22631d 227 // sd1.printf("read_block_number=%d\r\n",block_number);
ee12b079 86:a26f5f22631d 228 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 229 }
ee12b079 86:a26f5f22631d 230 else if(sid==0x1)
ee12b079 86:a26f5f22631d 231 {
ee12b079 86:a26f5f22631d 232 block_number=SD_SFF_AT_FIRST + fsc;
ee12b079 86:a26f5f22631d 233 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 234 }
ee12b079 86:a26f5f22631d 235 else if(sid==0x2)
ee12b079 86:a26f5f22631d 236 {
ee12b079 86:a26f5f22631d 237 block_number=SD_SFF_BT_FIRST + fsc;
ee12b079 86:a26f5f22631d 238 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 239 }
ee12b079 86:a26f5f22631d 240 else if(sid==0x3)
ee12b079 86:a26f5f22631d 241 {
ee12b079 86:a26f5f22631d 242 block_number=SD_HK_ARCH_FIRST + fsc;
ee12b079 86:a26f5f22631d 243 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 244 }
ee12b079 86:a26f5f22631d 245 else if(sid==0x4)
ee12b079 86:a26f5f22631d 246 {
ee12b079 86:a26f5f22631d 247 block_number=LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 248 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 249 }
ee12b079 86:a26f5f22631d 250 else
ee12b079 86:a26f5f22631d 251 {
ee12b079 86:a26f5f22631d 252 return 1;
ee12b079 86:a26f5f22631d 253 }
ee12b079 86:a26f5f22631d 254 return result;
ee12b079 86:a26f5f22631d 255 }
ee12b079 86:a26f5f22631d 256
ee12b079 86:a26f5f22631d 257
ee12b079 86:a26f5f22631d 258 int initialise_card()
ee12b079 86:a26f5f22631d 259 {
ee12b079 86:a26f5f22631d 260 // Set to 100kHz for initialisation, and clock card with cs_sd = 1
ee12b079 86:a26f5f22631d 261 spi.frequency(100000); // changed on 31 12 2015 to 1 MHz
ee12b079 86:a26f5f22631d 262 cs_sd = 1;
ee12b079 86:a26f5f22631d 263 for (int i = 0; i < 16; i++) {
ee12b079 86:a26f5f22631d 264 spi.write(0xFF);
ee12b079 86:a26f5f22631d 265 }
ee12b079 86:a26f5f22631d 266
ee12b079 86:a26f5f22631d 267 // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
ee12b079 86:a26f5f22631d 268 if (cmd(0, 0) != R1_IDLE_STATE) {
ee12b079 86:a26f5f22631d 269 debug("No disk, or could not put SD card in to spi idle state\r\n");
ee12b079 86:a26f5f22631d 270 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 271 }
ee12b079 86:a26f5f22631d 272
ee12b079 86:a26f5f22631d 273 // send CMD8 to determine whther it is ver 2.x
ee12b079 86:a26f5f22631d 274 int r = cmd8();
ee12b079 86:a26f5f22631d 275 if (r == R1_IDLE_STATE) {
ee12b079 174:44a6d7c7674c 276 gPC.printf("\rEntering v2\r\n");
ee12b079 86:a26f5f22631d 277 return initialise_card_v2();
ee12b079 86:a26f5f22631d 278
ee12b079 86:a26f5f22631d 279 } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
ee12b079 174:44a6d7c7674c 280 gPC.printf("\rEntering v1\r\n");
ee12b079 86:a26f5f22631d 281 return initialise_card_v1();
ee12b079 86:a26f5f22631d 282
ee12b079 86:a26f5f22631d 283 } else {
ee12b079 86:a26f5f22631d 284 debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n");
ee12b079 86:a26f5f22631d 285 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 286 }
ee12b079 86:a26f5f22631d 287 }
ee12b079 86:a26f5f22631d 288
ee12b079 86:a26f5f22631d 289 int initialise_card_v1()
ee12b079 86:a26f5f22631d 290 {
ee12b079 86:a26f5f22631d 291 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 292 cmd(55, 0);
ee12b079 86:a26f5f22631d 293 if (cmd(41, 0) == 0) {
ee12b079 96:4ca92f9775e0 294 gPC.puts("\rv1 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 295 cdv = 512;
ee12b079 86:a26f5f22631d 296 debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r");
ee12b079 86:a26f5f22631d 297
ee12b079 86:a26f5f22631d 298 return SDCARD_V1;
ee12b079 86:a26f5f22631d 299 }
ee12b079 86:a26f5f22631d 300 }
ee12b079 86:a26f5f22631d 301
ee12b079 86:a26f5f22631d 302 debug("\rTimeout waiting for v1.x card\r\n");
ee12b079 86:a26f5f22631d 303 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 304 }
ee12b079 86:a26f5f22631d 305
ee12b079 86:a26f5f22631d 306
ee12b079 86:a26f5f22631d 307 int initialise_card_v2()
ee12b079 86:a26f5f22631d 308 {
ee12b079 86:a26f5f22631d 309 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 310 wait_ms(50);
ee12b079 86:a26f5f22631d 311 cmd58();
ee12b079 86:a26f5f22631d 312 cmd(55, 0);
ee12b079 86:a26f5f22631d 313 if (cmd(41, 0x40000000) == 0) {
ee12b079 99:efde3df6cd94 314 #if DEBUG
ee12b079 99:efde3df6cd94 315 gPC.puts("\rv2 initialization successfull\r\n");
ee12b079 99:efde3df6cd94 316 #endif
ee12b079 86:a26f5f22631d 317 cmd58();
ee12b079 86:a26f5f22631d 318 debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r");
ee12b079 86:a26f5f22631d 319 cdv = 1;
ee12b079 86:a26f5f22631d 320
ee12b079 86:a26f5f22631d 321 return SDCARD_V2;
ee12b079 86:a26f5f22631d 322 }
ee12b079 86:a26f5f22631d 323 }
ee12b079 86:a26f5f22631d 324
ee12b079 86:a26f5f22631d 325 debug("\rTimeout waiting for v2.x card\r\n");
ee12b079 86:a26f5f22631d 326 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 327 }
ee12b079 86:a26f5f22631d 328
ee12b079 86:a26f5f22631d 329 int cmd(int cmd, int arg)
ee12b079 86:a26f5f22631d 330 {
ee12b079 86:a26f5f22631d 331 cs_sd = 0;
ee12b079 86:a26f5f22631d 332
ee12b079 86:a26f5f22631d 333 // send a command
ee12b079 86:a26f5f22631d 334 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 335 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 336 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 337 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 338 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 339 spi.write(0x95);
ee12b079 86:a26f5f22631d 340
ee12b079 86:a26f5f22631d 341 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 342 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 343 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 344 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 345 cs_sd = 1;
ee12b079 86:a26f5f22631d 346 spi.write(0xFF);
ee12b079 86:a26f5f22631d 347 return response;
ee12b079 86:a26f5f22631d 348 }
ee12b079 86:a26f5f22631d 349 }
ee12b079 86:a26f5f22631d 350 cs_sd = 1;
ee12b079 86:a26f5f22631d 351 spi.write(0xFF);
ee12b079 86:a26f5f22631d 352 return -1; // timeout
ee12b079 86:a26f5f22631d 353 }
ee12b079 86:a26f5f22631d 354
ee12b079 86:a26f5f22631d 355
ee12b079 86:a26f5f22631d 356 int cmd58()
ee12b079 86:a26f5f22631d 357 {
ee12b079 86:a26f5f22631d 358 cs_sd = 0;
ee12b079 86:a26f5f22631d 359 int arg = 0;
ee12b079 86:a26f5f22631d 360
ee12b079 86:a26f5f22631d 361 // send a command
ee12b079 86:a26f5f22631d 362 spi.write(0x40 | 58);
ee12b079 86:a26f5f22631d 363 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 364 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 365 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 366 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 367 spi.write(0x95);
ee12b079 86:a26f5f22631d 368
ee12b079 86:a26f5f22631d 369 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 370 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 371 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 372 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 373 int ocr = spi.write(0xFF) << 24;
ee12b079 86:a26f5f22631d 374 ocr |= spi.write(0xFF) << 16;
ee12b079 86:a26f5f22631d 375 ocr |= spi.write(0xFF) << 8;
ee12b079 86:a26f5f22631d 376 ocr |= spi.write(0xFF) << 0;
ee12b079 86:a26f5f22631d 377 cs_sd = 1;
ee12b079 86:a26f5f22631d 378 spi.write(0xFF);
ee12b079 86:a26f5f22631d 379 return response;
ee12b079 86:a26f5f22631d 380 }
ee12b079 86:a26f5f22631d 381 }
ee12b079 86:a26f5f22631d 382 cs_sd = 1;
ee12b079 86:a26f5f22631d 383 spi.write(0xFF);
ee12b079 86:a26f5f22631d 384 return -1; // timeout
ee12b079 86:a26f5f22631d 385 }
ee12b079 86:a26f5f22631d 386
ee12b079 86:a26f5f22631d 387
ee12b079 86:a26f5f22631d 388 int cmd8()
ee12b079 86:a26f5f22631d 389 {
ee12b079 86:a26f5f22631d 390 cs_sd = 0;
ee12b079 86:a26f5f22631d 391
ee12b079 86:a26f5f22631d 392 // send a command
ee12b079 86:a26f5f22631d 393 spi.write(0x40 | 8); // CMD8
ee12b079 86:a26f5f22631d 394 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 395 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 396 spi.write(0x01); // 3.3v
ee12b079 86:a26f5f22631d 397 spi.write(0xAA); // check pattern
ee12b079 86:a26f5f22631d 398 spi.write(0x87); // crc
ee12b079 86:a26f5f22631d 399
ee12b079 86:a26f5f22631d 400 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 401 for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) {
ee12b079 86:a26f5f22631d 402 char response[5];
ee12b079 86:a26f5f22631d 403 response[0] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 404 if (!(response[0] & 0x80)) {
ee12b079 86:a26f5f22631d 405 for (int j = 1; j < 5; j++) {
ee12b079 86:a26f5f22631d 406 response[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 407 }
ee12b079 86:a26f5f22631d 408 cs_sd = 1;
ee12b079 86:a26f5f22631d 409 spi.write(0xFF);
ee12b079 86:a26f5f22631d 410 return response[0];
ee12b079 86:a26f5f22631d 411 }
ee12b079 86:a26f5f22631d 412 }
ee12b079 86:a26f5f22631d 413 cs_sd = 1;
ee12b079 86:a26f5f22631d 414 spi.write(0xFF);
ee12b079 86:a26f5f22631d 415 return -1; // timeout
ee12b079 86:a26f5f22631d 416 }
ee12b079 86:a26f5f22631d 417
ee12b079 86:a26f5f22631d 418 uint64_t sd_sectors()
ee12b079 86:a26f5f22631d 419 {
ee12b079 86:a26f5f22631d 420 uint32_t c_size, c_size_mult, read_bl_len;
ee12b079 86:a26f5f22631d 421 uint32_t block_len, mult, blocknr, capacity;
ee12b079 86:a26f5f22631d 422 uint32_t hc_c_size;
ee12b079 86:a26f5f22631d 423 uint64_t blocks;
ee12b079 86:a26f5f22631d 424
ee12b079 86:a26f5f22631d 425 // CMD9, Response R2 (R1 byte + 16-byte block read)
ee12b079 86:a26f5f22631d 426 if (cmdx(9, 0) != 0) {
ee12b079 86:a26f5f22631d 427 debug("\rDidn't get a response from the disk\n");
ee12b079 86:a26f5f22631d 428 return 0;
ee12b079 86:a26f5f22631d 429 }
ee12b079 86:a26f5f22631d 430
ee12b079 86:a26f5f22631d 431 uint8_t cs_sdd[16];
ee12b079 86:a26f5f22631d 432 if (read(cs_sdd, 16) != 0) {
ee12b079 86:a26f5f22631d 433 debug("\rCouldn't read cs_sdd response from disk\n");
ee12b079 86:a26f5f22631d 434 return 0;
ee12b079 86:a26f5f22631d 435 }
ee12b079 86:a26f5f22631d 436
ee12b079 86:a26f5f22631d 437 // cs_sdd_structure : cs_sdd[127:126]
ee12b079 86:a26f5f22631d 438 // c_size : cs_sdd[73:62]
ee12b079 86:a26f5f22631d 439 // c_size_mult : cs_sdd[49:47]
ee12b079 86:a26f5f22631d 440 // read_bl_len : cs_sdd[83:80] - the *maximum* read block length
ee12b079 86:a26f5f22631d 441
ee12b079 86:a26f5f22631d 442 int cs_sdd_structure = ext_bits(cs_sdd, 127, 126);
ee12b079 86:a26f5f22631d 443
ee12b079 86:a26f5f22631d 444 switch (cs_sdd_structure) {
ee12b079 86:a26f5f22631d 445 case 0:
ee12b079 86:a26f5f22631d 446 cdv = 512;
ee12b079 86:a26f5f22631d 447 c_size = ext_bits(cs_sdd, 73, 62);
ee12b079 86:a26f5f22631d 448 c_size_mult = ext_bits(cs_sdd, 49, 47);
ee12b079 86:a26f5f22631d 449 read_bl_len = ext_bits(cs_sdd, 83, 80);
ee12b079 86:a26f5f22631d 450
ee12b079 86:a26f5f22631d 451 block_len = 1 << read_bl_len;
ee12b079 86:a26f5f22631d 452 mult = 1 << (c_size_mult + 2);
ee12b079 86:a26f5f22631d 453 blocknr = (c_size + 1) * mult;
ee12b079 86:a26f5f22631d 454 capacity = blocknr * block_len;
ee12b079 86:a26f5f22631d 455 blocks = capacity / 512;
ee12b079 86:a26f5f22631d 456 debug_if(SD_DBG, "\n\rSDCard\n\rc_size: %d \n\rcapacity: %ld \n\rsectors: %lld\n\r", c_size, capacity, blocks);
ee12b079 86:a26f5f22631d 457 break;
ee12b079 86:a26f5f22631d 458
ee12b079 86:a26f5f22631d 459 case 1:
ee12b079 86:a26f5f22631d 460 cdv = 1;
ee12b079 86:a26f5f22631d 461 hc_c_size = ext_bits(cs_sdd, 63, 48);
ee12b079 86:a26f5f22631d 462 blocks = (hc_c_size+1)*1024;
ee12b079 86:a26f5f22631d 463 debug_if(SD_DBG, "\n\rSDHC Card \n\rhc_c_size: %d\n\rcapacity: %lld \n\rsectors: %lld\n\r", hc_c_size, blocks*512, blocks);
ee12b079 86:a26f5f22631d 464 break;
ee12b079 86:a26f5f22631d 465
ee12b079 86:a26f5f22631d 466 default:
ee12b079 86:a26f5f22631d 467 debug("cs_sdD struct unsupported\r\n");
ee12b079 86:a26f5f22631d 468 return 0;
ee12b079 86:a26f5f22631d 469 };
ee12b079 86:a26f5f22631d 470 return blocks;
ee12b079 86:a26f5f22631d 471 }
ee12b079 86:a26f5f22631d 472
ee12b079 86:a26f5f22631d 473 int cmdx(int cmd, int arg)
ee12b079 86:a26f5f22631d 474 {
ee12b079 86:a26f5f22631d 475 cs_sd = 0;
ee12b079 86:a26f5f22631d 476
ee12b079 86:a26f5f22631d 477 // send a command
ee12b079 86:a26f5f22631d 478 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 479 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 480 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 481 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 482 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 483 spi.write(0x95);
ee12b079 86:a26f5f22631d 484
ee12b079 86:a26f5f22631d 485 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 486 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 487 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 488 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 489 return response;
ee12b079 86:a26f5f22631d 490 }
ee12b079 86:a26f5f22631d 491 }
ee12b079 86:a26f5f22631d 492 cs_sd = 1;
ee12b079 86:a26f5f22631d 493 spi.write(0xFF);
ee12b079 86:a26f5f22631d 494 return -1; // timeout
ee12b079 86:a26f5f22631d 495 }
ee12b079 86:a26f5f22631d 496
ee12b079 86:a26f5f22631d 497 static uint32_t ext_bits(unsigned char *data, int msb, int lsb)
ee12b079 86:a26f5f22631d 498 {
ee12b079 86:a26f5f22631d 499 uint32_t bits = 0;
ee12b079 86:a26f5f22631d 500 uint32_t size = 1 + msb - lsb;
ee12b079 86:a26f5f22631d 501 for (int i = 0; i < size; i++) {
ee12b079 86:a26f5f22631d 502 uint32_t position = lsb + i;
ee12b079 86:a26f5f22631d 503 uint32_t byte = 15 - (position >> 3);
ee12b079 86:a26f5f22631d 504 uint32_t bit = position & 0x7;
ee12b079 86:a26f5f22631d 505 uint32_t value = (data[byte] >> bit) & 1;
ee12b079 86:a26f5f22631d 506 bits |= value << i;
ee12b079 86:a26f5f22631d 507 }
ee12b079 86:a26f5f22631d 508 return bits;
ee12b079 86:a26f5f22631d 509 }
ee12b079 86:a26f5f22631d 510
ee12b079 86:a26f5f22631d 511 int disk_initialize()
ee12b079 86:a26f5f22631d 512 {
ee12b079 86:a26f5f22631d 513 int i = initialise_card();
ee12b079 86:a26f5f22631d 514 debug_if(SD_DBG, "init card = %d\n", i);
ee12b079 86:a26f5f22631d 515 sectors = sd_sectors();
ee12b079 86:a26f5f22631d 516
ee12b079 86:a26f5f22631d 517 // Set block length to 512 (CMD16)
ee12b079 86:a26f5f22631d 518 if (cmd(16, 512) != 0) {
ee12b079 86:a26f5f22631d 519 debug("\rSet 512-byte block timed out\r\n");
ee12b079 86:a26f5f22631d 520 return 1;
ee12b079 86:a26f5f22631d 521 } else {
ee12b079 174:44a6d7c7674c 522 gPC.printf("\rDisk initialization successfull\r\n");
ee12b079 86:a26f5f22631d 523 }
ee12b079 86:a26f5f22631d 524
ee12b079 86:a26f5f22631d 525 spi.frequency(1000000); // Set to 1MHz for data transfer
ee12b079 86:a26f5f22631d 526 return 0;
ee12b079 86:a26f5f22631d 527 }
ee12b079 86:a26f5f22631d 528
ee12b079 86:a26f5f22631d 529 int disk_write(const uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 530
ee12b079 86:a26f5f22631d 531 {
ee12b079 86:a26f5f22631d 532 // set write address for single block (CMD24)
ee12b079 86:a26f5f22631d 533 if (cmd(24, block_number * cdv) != 0) {
ee12b079 86:a26f5f22631d 534 return 1;
ee12b079 86:a26f5f22631d 535 }
ee12b079 86:a26f5f22631d 536
ee12b079 86:a26f5f22631d 537 // send the data block
ee12b079 86:a26f5f22631d 538 write(buffer, 512);
ee12b079 86:a26f5f22631d 539 //printf("Written Successfully bro \n");
ee12b079 86:a26f5f22631d 540 return 0;
ee12b079 86:a26f5f22631d 541 }
ee12b079 86:a26f5f22631d 542
ee12b079 86:a26f5f22631d 543 int write(const uint8_t*buffer, uint32_t length)
ee12b079 86:a26f5f22631d 544 {
ee12b079 86:a26f5f22631d 545 cs_sd = 0;
ee12b079 86:a26f5f22631d 546
ee12b079 86:a26f5f22631d 547 // indicate start of block
ee12b079 86:a26f5f22631d 548 spi.write(0xFE);
ee12b079 86:a26f5f22631d 549
ee12b079 86:a26f5f22631d 550 // write the data
ee12b079 86:a26f5f22631d 551 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 552 spi.write(buffer[i]);
ee12b079 86:a26f5f22631d 553 }
ee12b079 86:a26f5f22631d 554
ee12b079 86:a26f5f22631d 555 // write the checksum
ee12b079 86:a26f5f22631d 556 spi.write(0xFF);
ee12b079 86:a26f5f22631d 557 spi.write(0xFF);
ee12b079 86:a26f5f22631d 558
ee12b079 86:a26f5f22631d 559 // check the response token
ee12b079 86:a26f5f22631d 560 if ((spi.write(0xFF) & 0x1F) != 0x05) {
ee12b079 86:a26f5f22631d 561 cs_sd = 1;
ee12b079 86:a26f5f22631d 562 spi.write(0xFF);
ee12b079 86:a26f5f22631d 563 return 1;
ee12b079 86:a26f5f22631d 564 }
ee12b079 86:a26f5f22631d 565
ee12b079 86:a26f5f22631d 566 // wait for write to finish
ee12b079 86:a26f5f22631d 567 while (spi.write(0xFF) == 0);
ee12b079 86:a26f5f22631d 568
ee12b079 86:a26f5f22631d 569 cs_sd = 1;
ee12b079 86:a26f5f22631d 570 spi.write(0xFF);
ee12b079 86:a26f5f22631d 571 return 0;
ee12b079 86:a26f5f22631d 572 }
ee12b079 86:a26f5f22631d 573
ee12b079 86:a26f5f22631d 574 int disk_read(uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 575 {
ee12b079 86:a26f5f22631d 576 // set read address for single block (CMD17)
ee12b079 86:a26f5f22631d 577 if (cmd(17, block_number * cdv) != 0) {
ee12b079 86:a26f5f22631d 578 return 1;
ee12b079 86:a26f5f22631d 579 }
ee12b079 86:a26f5f22631d 580
ee12b079 86:a26f5f22631d 581 // receive the data
ee12b079 86:a26f5f22631d 582 read(buffer, 512);
ee12b079 86:a26f5f22631d 583 return 0;
ee12b079 86:a26f5f22631d 584 }
ee12b079 86:a26f5f22631d 585
ee12b079 86:a26f5f22631d 586 int read(uint8_t *buffer, uint32_t length)
ee12b079 86:a26f5f22631d 587 {
ee12b079 86:a26f5f22631d 588 cs_sd = 0;
ee12b079 86:a26f5f22631d 589
ee12b079 86:a26f5f22631d 590 // read until start byte (0xFF)
ee12b079 86:a26f5f22631d 591 while (spi.write(0xFF) != 0xFE);
ee12b079 86:a26f5f22631d 592
ee12b079 86:a26f5f22631d 593 // read data
ee12b079 86:a26f5f22631d 594 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 595 buffer[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 596 }
ee12b079 86:a26f5f22631d 597 spi.write(0xFF); // checksum
ee12b079 86:a26f5f22631d 598 spi.write(0xFF);
ee12b079 86:a26f5f22631d 599
ee12b079 86:a26f5f22631d 600 cs_sd = 1;
ee12b079 86:a26f5f22631d 601 spi.write(0xFF);
ee12b079 86:a26f5f22631d 602 return 0;
ee12b079 86:a26f5f22631d 603 }
ee12b079 86:a26f5f22631d 604
ee12b079 86:a26f5f22631d 605 int disk_erase(int startBlock, int totalBlocks)
ee12b079 86:a26f5f22631d 606 {
ee12b079 86:a26f5f22631d 607 if(cmd(32, startBlock * cdv) != 0) {
ee12b079 86:a26f5f22631d 608 return 1;
ee12b079 86:a26f5f22631d 609 }
ee12b079 86:a26f5f22631d 610 if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) {
ee12b079 86:a26f5f22631d 611 return 1;
ee12b079 86:a26f5f22631d 612 }
ee12b079 86:a26f5f22631d 613 if (cmd(38,0) != 0) {
ee12b079 86:a26f5f22631d 614 return 1;
ee12b079 86:a26f5f22631d 615 }
ee12b079 86:a26f5f22631d 616
ee12b079 86:a26f5f22631d 617 return 0; //normal return
ee12b079 92:bce22b38c440 618 }