samp Srinivasan / Mbed 2 deprecated CDMS_CODE_samp_23SEP_DMA_flag

CDMS_CODE_samp_23SEP_DMA_flag

Dependencies:   FreescaleIAP SimpleDMA mbed-rtos mbed

Fork of CDMS_CODE_samp_23SEP_DMA by iitm sat

cdms_sd.h@99:efde3df6cd94, 2016-01-26 (annotated)

Committer:
ee12b079
Date:
Tue Jan 26 12:18:53 2016 +0000
Revision:
99:efde3df6cd94
Parent:
96:4ca92f9775e0
Child:
132:d4a4461214ad
Child:
134:4694fc291ce1
Child:
174:44a6d7c7674c
DATA checked for one fsc, with one OBSRS telecommand

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