samp Srinivasan / Mbed 2 deprecated CDMS_CODE_samp_22Nov16

publishing to check changes in cdms code

Dependencies:   FreescaleIAP SimpleDMA mbed-rtos mbed

Fork of CDMS_CODE_samp_23SEP_DMA_flag by samp Srinivasan

cdms_sd.h@86:a26f5f22631d, 2016-01-20 (annotated)

Committer:
ee12b079
Date:
Wed Jan 20 16:40:28 2016 +0000
Revision:
86:a26f5f22631d
Child:
92:bce22b38c440
SDCard code integrated, works for MMS TC, to be tested for OBSRS TC

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 86:a26f5f22631d 41 uint8_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 86:a26f5f22631d 51 int SD_WRITE(uint8_t*,uint8_t,uint8_t);
ee12b079 86:a26f5f22631d 52 void FCTN_CDMS_SD_INIT();
ee12b079 86:a26f5f22631d 53 int SD_READ(uint8_t*,uint8_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 86:a26f5f22631d 84 uint8_t FCTN_SD_MNGR(uint8_t sid)
ee12b079 86:a26f5f22631d 85
ee12b079 86:a26f5f22631d 86 {
ee12b079 86:a26f5f22631d 87
ee12b079 86:a26f5f22631d 88 uint32_t SD_MNG_SECT=7000;
ee12b079 86:a26f5f22631d 89 uint32_t block_number;
ee12b079 86:a26f5f22631d 90 uint8_t fsc;
ee12b079 86:a26f5f22631d 91 uint8_t *buffer;
ee12b079 86:a26f5f22631d 92 uint32_t i=0;
ee12b079 86:a26f5f22631d 93 disk_read(buffer, SD_MNG_SECT);
ee12b079 86:a26f5f22631d 94
ee12b079 86:a26f5f22631d 95 if(sid==0x0)
ee12b079 86:a26f5f22631d 96 {
ee12b079 86:a26f5f22631d 97 fsc=buffer[0];
ee12b079 86:a26f5f22631d 98 buffer[0]++;
ee12b079 86:a26f5f22631d 99 buffer[511]+=2;
ee12b079 86:a26f5f22631d 100 disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 101 }
ee12b079 86:a26f5f22631d 102 if(sid==0x1)
ee12b079 86:a26f5f22631d 103 {
ee12b079 86:a26f5f22631d 104 fsc=buffer[1];
ee12b079 86:a26f5f22631d 105 buffer[1]++;
ee12b079 86:a26f5f22631d 106 buffer[511]+=2;
ee12b079 86:a26f5f22631d 107 disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 108 }
ee12b079 86:a26f5f22631d 109 if(sid==0x2)
ee12b079 86:a26f5f22631d 110 {
ee12b079 86:a26f5f22631d 111 fsc=buffer[2];
ee12b079 86:a26f5f22631d 112 buffer[2]++;
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==0x3)
ee12b079 86:a26f5f22631d 117 {
ee12b079 86:a26f5f22631d 118 fsc=buffer[30];
ee12b079 86:a26f5f22631d 119 printf("Hey buffer[300] pre-increment is %d\r\n",buffer[300]);
ee12b079 86:a26f5f22631d 120 buffer[300]+=1;
ee12b079 86:a26f5f22631d 121 printf("Hey buffer[300] post-increment is %d\r\n",buffer[300]);
ee12b079 86:a26f5f22631d 122 buffer[511]+=2;
ee12b079 86:a26f5f22631d 123 disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 124 disk_read(buffer, SD_MNG_SECT);
ee12b079 86:a26f5f22631d 125 printf("Hey buffer[300] post writing is %d\r\n",buffer[300]);
ee12b079 86:a26f5f22631d 126 printf("Hey buffer[511] post writing is %d\r\n",buffer[511]);
ee12b079 86:a26f5f22631d 127 }
ee12b079 86:a26f5f22631d 128 if(sid==0x4)
ee12b079 86:a26f5f22631d 129 {
ee12b079 86:a26f5f22631d 130 fsc=buffer[4];
ee12b079 86:a26f5f22631d 131 buffer[4]++;
ee12b079 86:a26f5f22631d 132 buffer[511]+=2;
ee12b079 86:a26f5f22631d 133 disk_write(buffer,SD_MNG_SECT);
ee12b079 86:a26f5f22631d 134 }
ee12b079 86:a26f5f22631d 135 return fsc;
ee12b079 86:a26f5f22631d 136 }
ee12b079 86:a26f5f22631d 137
ee12b079 86:a26f5f22631d 138
ee12b079 86:a26f5f22631d 139 int SD_WRITE(uint8_t* buffer,uint8_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 140 {
ee12b079 86:a26f5f22631d 141
ee12b079 86:a26f5f22631d 142 uint32_t SD_SCP_FIRST=1001;
ee12b079 86:a26f5f22631d 143 uint32_t SD_SCP_LAST=2000;
ee12b079 86:a26f5f22631d 144 uint32_t SD_SFF_AT_FIRST=2001;
ee12b079 86:a26f5f22631d 145 uint32_t SD_SFF_AT_LAST = 3000;
ee12b079 86:a26f5f22631d 146 uint32_t SD_SFF_BT_FIRST =3001;
ee12b079 86:a26f5f22631d 147 uint32_t SD_SFF_BT_LAST=4000;
ee12b079 86:a26f5f22631d 148 uint32_t SD_HK_ARCH_FIRST=4001;
ee12b079 86:a26f5f22631d 149 uint32_t SD_HK_ARCH_LAST= 5000;
ee12b079 86:a26f5f22631d 150 uint32_t LOG_FIRST =5001;
ee12b079 86:a26f5f22631d 151 uint32_t LOG_LAST=6000;
ee12b079 86:a26f5f22631d 152 uint32_t SD_MNG_SECT=7000;
ee12b079 86:a26f5f22631d 153 uint32_t block_number;
ee12b079 86:a26f5f22631d 154 int result;
ee12b079 86:a26f5f22631d 155 if(sid==0x0)
ee12b079 86:a26f5f22631d 156 {
ee12b079 86:a26f5f22631d 157 block_number=SD_SCP_FIRST+uint32_t(fsc);
ee12b079 86:a26f5f22631d 158 // printf("write_block_number=%d\r\n",block_number);
ee12b079 86:a26f5f22631d 159 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 160 return result;
ee12b079 86:a26f5f22631d 161 }
ee12b079 86:a26f5f22631d 162 if(sid==0x1)
ee12b079 86:a26f5f22631d 163 {
ee12b079 86:a26f5f22631d 164 block_number=SD_SFF_AT_FIRST + fsc;
ee12b079 86:a26f5f22631d 165 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 166 return result;
ee12b079 86:a26f5f22631d 167 }
ee12b079 86:a26f5f22631d 168 if(sid==0x2)
ee12b079 86:a26f5f22631d 169 {
ee12b079 86:a26f5f22631d 170 block_number=SD_SFF_BT_FIRST + fsc;
ee12b079 86:a26f5f22631d 171 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 172 return result;
ee12b079 86:a26f5f22631d 173 }
ee12b079 86:a26f5f22631d 174 if(sid==0x3)
ee12b079 86:a26f5f22631d 175 {
ee12b079 86:a26f5f22631d 176 block_number=SD_HK_ARCH_FIRST+fsc;
ee12b079 86:a26f5f22631d 177 // sd1.printf("Block number is %d \r\n",block_number);
ee12b079 86:a26f5f22631d 178 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 179 return result;
ee12b079 86:a26f5f22631d 180 }
ee12b079 86:a26f5f22631d 181 if(sid==0x4)
ee12b079 86:a26f5f22631d 182 {
ee12b079 86:a26f5f22631d 183 block_number=LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 184 result= disk_write(buffer,block_number);
ee12b079 86:a26f5f22631d 185 return result;
ee12b079 86:a26f5f22631d 186 }
ee12b079 86:a26f5f22631d 187 return 1;
ee12b079 86:a26f5f22631d 188 }
ee12b079 86:a26f5f22631d 189
ee12b079 86:a26f5f22631d 190 int SD_READ(uint8_t* buffer,uint8_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 191 {
ee12b079 86:a26f5f22631d 192
ee12b079 86:a26f5f22631d 193 uint32_t SD_SCP_FIRST=1001;
ee12b079 86:a26f5f22631d 194 uint32_t SD_SCP_LAST=2000;
ee12b079 86:a26f5f22631d 195 uint32_t SD_SFF_AT_FIRST=2001;
ee12b079 86:a26f5f22631d 196 uint32_t SD_SFF_AT_LAST = 3000;
ee12b079 86:a26f5f22631d 197 uint32_t SD_SFF_BT_FIRST =3001;
ee12b079 86:a26f5f22631d 198 uint32_t SD_SFF_BT_LAST=4000;
ee12b079 86:a26f5f22631d 199 uint32_t SD_HK_ARCH_FIRST=4001;
ee12b079 86:a26f5f22631d 200 uint32_t SD_HK_ARCH_LAST= 5000;
ee12b079 86:a26f5f22631d 201 uint32_t LOG_FIRST =5001;
ee12b079 86:a26f5f22631d 202 uint32_t LOG_LAST=6000;
ee12b079 86:a26f5f22631d 203 uint32_t SD_MNG_SECT=7000;
ee12b079 86:a26f5f22631d 204 uint32_t block_number;
ee12b079 86:a26f5f22631d 205 int result;
ee12b079 86:a26f5f22631d 206 if(sid==0x0)
ee12b079 86:a26f5f22631d 207 {
ee12b079 86:a26f5f22631d 208 block_number=SD_SCP_FIRST + uint32_t(fsc);
ee12b079 86:a26f5f22631d 209 // sd1.printf("read_block_number=%d\r\n",block_number);
ee12b079 86:a26f5f22631d 210 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 211 }
ee12b079 86:a26f5f22631d 212 else if(sid==0x1)
ee12b079 86:a26f5f22631d 213 {
ee12b079 86:a26f5f22631d 214 block_number=SD_SFF_AT_FIRST + fsc;
ee12b079 86:a26f5f22631d 215 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 216 }
ee12b079 86:a26f5f22631d 217 else if(sid==0x2)
ee12b079 86:a26f5f22631d 218 {
ee12b079 86:a26f5f22631d 219 block_number=SD_SFF_BT_FIRST + fsc;
ee12b079 86:a26f5f22631d 220 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 221 }
ee12b079 86:a26f5f22631d 222 else if(sid==0x3)
ee12b079 86:a26f5f22631d 223 {
ee12b079 86:a26f5f22631d 224 block_number=SD_HK_ARCH_FIRST + fsc;
ee12b079 86:a26f5f22631d 225 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 226 }
ee12b079 86:a26f5f22631d 227 else if(sid==0x4)
ee12b079 86:a26f5f22631d 228 {
ee12b079 86:a26f5f22631d 229 block_number=LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 230 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 231 }
ee12b079 86:a26f5f22631d 232 else
ee12b079 86:a26f5f22631d 233 {
ee12b079 86:a26f5f22631d 234 return 1;
ee12b079 86:a26f5f22631d 235 }
ee12b079 86:a26f5f22631d 236 return result;
ee12b079 86:a26f5f22631d 237 }
ee12b079 86:a26f5f22631d 238
ee12b079 86:a26f5f22631d 239
ee12b079 86:a26f5f22631d 240 int initialise_card()
ee12b079 86:a26f5f22631d 241 {
ee12b079 86:a26f5f22631d 242 // Set to 100kHz for initialisation, and clock card with cs_sd = 1
ee12b079 86:a26f5f22631d 243 spi.frequency(100000); // changed on 31 12 2015 to 1 MHz
ee12b079 86:a26f5f22631d 244 cs_sd = 1;
ee12b079 86:a26f5f22631d 245 for (int i = 0; i < 16; i++) {
ee12b079 86:a26f5f22631d 246 spi.write(0xFF);
ee12b079 86:a26f5f22631d 247 }
ee12b079 86:a26f5f22631d 248
ee12b079 86:a26f5f22631d 249 // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
ee12b079 86:a26f5f22631d 250 if (cmd(0, 0) != R1_IDLE_STATE) {
ee12b079 86:a26f5f22631d 251 debug("No disk, or could not put SD card in to spi idle state\r\n");
ee12b079 86:a26f5f22631d 252 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 253 }
ee12b079 86:a26f5f22631d 254
ee12b079 86:a26f5f22631d 255 // send CMD8 to determine whther it is ver 2.x
ee12b079 86:a26f5f22631d 256 int r = cmd8();
ee12b079 86:a26f5f22631d 257 if (r == R1_IDLE_STATE) {
ee12b079 86:a26f5f22631d 258 printf("\rEntering v2\r\n");
ee12b079 86:a26f5f22631d 259 return initialise_card_v2();
ee12b079 86:a26f5f22631d 260
ee12b079 86:a26f5f22631d 261 } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
ee12b079 86:a26f5f22631d 262 printf("\rEntering v1\r\n");
ee12b079 86:a26f5f22631d 263 return initialise_card_v1();
ee12b079 86:a26f5f22631d 264
ee12b079 86:a26f5f22631d 265 } else {
ee12b079 86:a26f5f22631d 266 debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n");
ee12b079 86:a26f5f22631d 267 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 268 }
ee12b079 86:a26f5f22631d 269 }
ee12b079 86:a26f5f22631d 270
ee12b079 86:a26f5f22631d 271 int initialise_card_v1()
ee12b079 86:a26f5f22631d 272 {
ee12b079 86:a26f5f22631d 273 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 274 cmd(55, 0);
ee12b079 86:a26f5f22631d 275 if (cmd(41, 0) == 0) {
ee12b079 86:a26f5f22631d 276 printf("\rv1 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 277 cdv = 512;
ee12b079 86:a26f5f22631d 278 debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r");
ee12b079 86:a26f5f22631d 279
ee12b079 86:a26f5f22631d 280 return SDCARD_V1;
ee12b079 86:a26f5f22631d 281 }
ee12b079 86:a26f5f22631d 282 }
ee12b079 86:a26f5f22631d 283
ee12b079 86:a26f5f22631d 284 debug("\rTimeout waiting for v1.x 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_v2()
ee12b079 86:a26f5f22631d 290 {
ee12b079 86:a26f5f22631d 291 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 292 wait_ms(50);
ee12b079 86:a26f5f22631d 293 cmd58();
ee12b079 86:a26f5f22631d 294 cmd(55, 0);
ee12b079 86:a26f5f22631d 295 if (cmd(41, 0x40000000) == 0) {
ee12b079 86:a26f5f22631d 296 printf("\rv2 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 297 cmd58();
ee12b079 86:a26f5f22631d 298 debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r");
ee12b079 86:a26f5f22631d 299 cdv = 1;
ee12b079 86:a26f5f22631d 300
ee12b079 86:a26f5f22631d 301 return SDCARD_V2;
ee12b079 86:a26f5f22631d 302 }
ee12b079 86:a26f5f22631d 303 }
ee12b079 86:a26f5f22631d 304
ee12b079 86:a26f5f22631d 305 debug("\rTimeout waiting for v2.x card\r\n");
ee12b079 86:a26f5f22631d 306 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 307 }
ee12b079 86:a26f5f22631d 308
ee12b079 86:a26f5f22631d 309 int cmd(int cmd, int arg)
ee12b079 86:a26f5f22631d 310 {
ee12b079 86:a26f5f22631d 311 cs_sd = 0;
ee12b079 86:a26f5f22631d 312
ee12b079 86:a26f5f22631d 313 // send a command
ee12b079 86:a26f5f22631d 314 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 315 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 316 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 317 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 318 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 319 spi.write(0x95);
ee12b079 86:a26f5f22631d 320
ee12b079 86:a26f5f22631d 321 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 322 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 323 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 324 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 325 cs_sd = 1;
ee12b079 86:a26f5f22631d 326 spi.write(0xFF);
ee12b079 86:a26f5f22631d 327 return response;
ee12b079 86:a26f5f22631d 328 }
ee12b079 86:a26f5f22631d 329 }
ee12b079 86:a26f5f22631d 330 cs_sd = 1;
ee12b079 86:a26f5f22631d 331 spi.write(0xFF);
ee12b079 86:a26f5f22631d 332 return -1; // timeout
ee12b079 86:a26f5f22631d 333 }
ee12b079 86:a26f5f22631d 334
ee12b079 86:a26f5f22631d 335
ee12b079 86:a26f5f22631d 336 int cmd58()
ee12b079 86:a26f5f22631d 337 {
ee12b079 86:a26f5f22631d 338 cs_sd = 0;
ee12b079 86:a26f5f22631d 339 int arg = 0;
ee12b079 86:a26f5f22631d 340
ee12b079 86:a26f5f22631d 341 // send a command
ee12b079 86:a26f5f22631d 342 spi.write(0x40 | 58);
ee12b079 86:a26f5f22631d 343 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 344 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 345 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 346 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 347 spi.write(0x95);
ee12b079 86:a26f5f22631d 348
ee12b079 86:a26f5f22631d 349 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 350 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 351 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 352 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 353 int ocr = spi.write(0xFF) << 24;
ee12b079 86:a26f5f22631d 354 ocr |= spi.write(0xFF) << 16;
ee12b079 86:a26f5f22631d 355 ocr |= spi.write(0xFF) << 8;
ee12b079 86:a26f5f22631d 356 ocr |= spi.write(0xFF) << 0;
ee12b079 86:a26f5f22631d 357 cs_sd = 1;
ee12b079 86:a26f5f22631d 358 spi.write(0xFF);
ee12b079 86:a26f5f22631d 359 return response;
ee12b079 86:a26f5f22631d 360 }
ee12b079 86:a26f5f22631d 361 }
ee12b079 86:a26f5f22631d 362 cs_sd = 1;
ee12b079 86:a26f5f22631d 363 spi.write(0xFF);
ee12b079 86:a26f5f22631d 364 return -1; // timeout
ee12b079 86:a26f5f22631d 365 }
ee12b079 86:a26f5f22631d 366
ee12b079 86:a26f5f22631d 367
ee12b079 86:a26f5f22631d 368 int cmd8()
ee12b079 86:a26f5f22631d 369 {
ee12b079 86:a26f5f22631d 370 cs_sd = 0;
ee12b079 86:a26f5f22631d 371
ee12b079 86:a26f5f22631d 372 // send a command
ee12b079 86:a26f5f22631d 373 spi.write(0x40 | 8); // CMD8
ee12b079 86:a26f5f22631d 374 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 375 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 376 spi.write(0x01); // 3.3v
ee12b079 86:a26f5f22631d 377 spi.write(0xAA); // check pattern
ee12b079 86:a26f5f22631d 378 spi.write(0x87); // crc
ee12b079 86:a26f5f22631d 379
ee12b079 86:a26f5f22631d 380 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 381 for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) {
ee12b079 86:a26f5f22631d 382 char response[5];
ee12b079 86:a26f5f22631d 383 response[0] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 384 if (!(response[0] & 0x80)) {
ee12b079 86:a26f5f22631d 385 for (int j = 1; j < 5; j++) {
ee12b079 86:a26f5f22631d 386 response[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 387 }
ee12b079 86:a26f5f22631d 388 cs_sd = 1;
ee12b079 86:a26f5f22631d 389 spi.write(0xFF);
ee12b079 86:a26f5f22631d 390 return response[0];
ee12b079 86:a26f5f22631d 391 }
ee12b079 86:a26f5f22631d 392 }
ee12b079 86:a26f5f22631d 393 cs_sd = 1;
ee12b079 86:a26f5f22631d 394 spi.write(0xFF);
ee12b079 86:a26f5f22631d 395 return -1; // timeout
ee12b079 86:a26f5f22631d 396 }
ee12b079 86:a26f5f22631d 397
ee12b079 86:a26f5f22631d 398 uint64_t sd_sectors()
ee12b079 86:a26f5f22631d 399 {
ee12b079 86:a26f5f22631d 400 uint32_t c_size, c_size_mult, read_bl_len;
ee12b079 86:a26f5f22631d 401 uint32_t block_len, mult, blocknr, capacity;
ee12b079 86:a26f5f22631d 402 uint32_t hc_c_size;
ee12b079 86:a26f5f22631d 403 uint64_t blocks;
ee12b079 86:a26f5f22631d 404
ee12b079 86:a26f5f22631d 405 // CMD9, Response R2 (R1 byte + 16-byte block read)
ee12b079 86:a26f5f22631d 406 if (cmdx(9, 0) != 0) {
ee12b079 86:a26f5f22631d 407 debug("\rDidn't get a response from the disk\n");
ee12b079 86:a26f5f22631d 408 return 0;
ee12b079 86:a26f5f22631d 409 }
ee12b079 86:a26f5f22631d 410
ee12b079 86:a26f5f22631d 411 uint8_t cs_sdd[16];
ee12b079 86:a26f5f22631d 412 if (read(cs_sdd, 16) != 0) {
ee12b079 86:a26f5f22631d 413 debug("\rCouldn't read cs_sdd response from disk\n");
ee12b079 86:a26f5f22631d 414 return 0;
ee12b079 86:a26f5f22631d 415 }
ee12b079 86:a26f5f22631d 416
ee12b079 86:a26f5f22631d 417 // cs_sdd_structure : cs_sdd[127:126]
ee12b079 86:a26f5f22631d 418 // c_size : cs_sdd[73:62]
ee12b079 86:a26f5f22631d 419 // c_size_mult : cs_sdd[49:47]
ee12b079 86:a26f5f22631d 420 // read_bl_len : cs_sdd[83:80] - the *maximum* read block length
ee12b079 86:a26f5f22631d 421
ee12b079 86:a26f5f22631d 422 int cs_sdd_structure = ext_bits(cs_sdd, 127, 126);
ee12b079 86:a26f5f22631d 423
ee12b079 86:a26f5f22631d 424 switch (cs_sdd_structure) {
ee12b079 86:a26f5f22631d 425 case 0:
ee12b079 86:a26f5f22631d 426 cdv = 512;
ee12b079 86:a26f5f22631d 427 c_size = ext_bits(cs_sdd, 73, 62);
ee12b079 86:a26f5f22631d 428 c_size_mult = ext_bits(cs_sdd, 49, 47);
ee12b079 86:a26f5f22631d 429 read_bl_len = ext_bits(cs_sdd, 83, 80);
ee12b079 86:a26f5f22631d 430
ee12b079 86:a26f5f22631d 431 block_len = 1 << read_bl_len;
ee12b079 86:a26f5f22631d 432 mult = 1 << (c_size_mult + 2);
ee12b079 86:a26f5f22631d 433 blocknr = (c_size + 1) * mult;
ee12b079 86:a26f5f22631d 434 capacity = blocknr * block_len;
ee12b079 86:a26f5f22631d 435 blocks = capacity / 512;
ee12b079 86:a26f5f22631d 436 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 437 break;
ee12b079 86:a26f5f22631d 438
ee12b079 86:a26f5f22631d 439 case 1:
ee12b079 86:a26f5f22631d 440 cdv = 1;
ee12b079 86:a26f5f22631d 441 hc_c_size = ext_bits(cs_sdd, 63, 48);
ee12b079 86:a26f5f22631d 442 blocks = (hc_c_size+1)*1024;
ee12b079 86:a26f5f22631d 443 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 444 break;
ee12b079 86:a26f5f22631d 445
ee12b079 86:a26f5f22631d 446 default:
ee12b079 86:a26f5f22631d 447 debug("cs_sdD struct unsupported\r\n");
ee12b079 86:a26f5f22631d 448 return 0;
ee12b079 86:a26f5f22631d 449 };
ee12b079 86:a26f5f22631d 450 return blocks;
ee12b079 86:a26f5f22631d 451 }
ee12b079 86:a26f5f22631d 452
ee12b079 86:a26f5f22631d 453 int cmdx(int cmd, int arg)
ee12b079 86:a26f5f22631d 454 {
ee12b079 86:a26f5f22631d 455 cs_sd = 0;
ee12b079 86:a26f5f22631d 456
ee12b079 86:a26f5f22631d 457 // send a command
ee12b079 86:a26f5f22631d 458 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 459 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 460 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 461 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 462 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 463 spi.write(0x95);
ee12b079 86:a26f5f22631d 464
ee12b079 86:a26f5f22631d 465 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 466 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 467 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 468 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 469 return response;
ee12b079 86:a26f5f22631d 470 }
ee12b079 86:a26f5f22631d 471 }
ee12b079 86:a26f5f22631d 472 cs_sd = 1;
ee12b079 86:a26f5f22631d 473 spi.write(0xFF);
ee12b079 86:a26f5f22631d 474 return -1; // timeout
ee12b079 86:a26f5f22631d 475 }
ee12b079 86:a26f5f22631d 476
ee12b079 86:a26f5f22631d 477 static uint32_t ext_bits(unsigned char *data, int msb, int lsb)
ee12b079 86:a26f5f22631d 478 {
ee12b079 86:a26f5f22631d 479 uint32_t bits = 0;
ee12b079 86:a26f5f22631d 480 uint32_t size = 1 + msb - lsb;
ee12b079 86:a26f5f22631d 481 for (int i = 0; i < size; i++) {
ee12b079 86:a26f5f22631d 482 uint32_t position = lsb + i;
ee12b079 86:a26f5f22631d 483 uint32_t byte = 15 - (position >> 3);
ee12b079 86:a26f5f22631d 484 uint32_t bit = position & 0x7;
ee12b079 86:a26f5f22631d 485 uint32_t value = (data[byte] >> bit) & 1;
ee12b079 86:a26f5f22631d 486 bits |= value << i;
ee12b079 86:a26f5f22631d 487 }
ee12b079 86:a26f5f22631d 488 return bits;
ee12b079 86:a26f5f22631d 489 }
ee12b079 86:a26f5f22631d 490
ee12b079 86:a26f5f22631d 491 int disk_initialize()
ee12b079 86:a26f5f22631d 492 {
ee12b079 86:a26f5f22631d 493 int i = initialise_card();
ee12b079 86:a26f5f22631d 494 debug_if(SD_DBG, "init card = %d\n", i);
ee12b079 86:a26f5f22631d 495 sectors = sd_sectors();
ee12b079 86:a26f5f22631d 496
ee12b079 86:a26f5f22631d 497 // Set block length to 512 (CMD16)
ee12b079 86:a26f5f22631d 498 if (cmd(16, 512) != 0) {
ee12b079 86:a26f5f22631d 499 debug("\rSet 512-byte block timed out\r\n");
ee12b079 86:a26f5f22631d 500 return 1;
ee12b079 86:a26f5f22631d 501 } else {
ee12b079 86:a26f5f22631d 502 printf("\rDisk initialization successfull\r\n");
ee12b079 86:a26f5f22631d 503 }
ee12b079 86:a26f5f22631d 504
ee12b079 86:a26f5f22631d 505 spi.frequency(1000000); // Set to 1MHz for data transfer
ee12b079 86:a26f5f22631d 506 return 0;
ee12b079 86:a26f5f22631d 507 }
ee12b079 86:a26f5f22631d 508
ee12b079 86:a26f5f22631d 509 int disk_write(const uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 510
ee12b079 86:a26f5f22631d 511 {
ee12b079 86:a26f5f22631d 512 // set write address for single block (CMD24)
ee12b079 86:a26f5f22631d 513 if (cmd(24, block_number * cdv) != 0) {
ee12b079 86:a26f5f22631d 514 return 1;
ee12b079 86:a26f5f22631d 515 }
ee12b079 86:a26f5f22631d 516
ee12b079 86:a26f5f22631d 517 // send the data block
ee12b079 86:a26f5f22631d 518 write(buffer, 512);
ee12b079 86:a26f5f22631d 519 //printf("Written Successfully bro \n");
ee12b079 86:a26f5f22631d 520 return 0;
ee12b079 86:a26f5f22631d 521 }
ee12b079 86:a26f5f22631d 522
ee12b079 86:a26f5f22631d 523 int write(const uint8_t*buffer, uint32_t length)
ee12b079 86:a26f5f22631d 524 {
ee12b079 86:a26f5f22631d 525 cs_sd = 0;
ee12b079 86:a26f5f22631d 526
ee12b079 86:a26f5f22631d 527 // indicate start of block
ee12b079 86:a26f5f22631d 528 spi.write(0xFE);
ee12b079 86:a26f5f22631d 529
ee12b079 86:a26f5f22631d 530 // write the data
ee12b079 86:a26f5f22631d 531 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 532 spi.write(buffer[i]);
ee12b079 86:a26f5f22631d 533 }
ee12b079 86:a26f5f22631d 534
ee12b079 86:a26f5f22631d 535 // write the checksum
ee12b079 86:a26f5f22631d 536 spi.write(0xFF);
ee12b079 86:a26f5f22631d 537 spi.write(0xFF);
ee12b079 86:a26f5f22631d 538
ee12b079 86:a26f5f22631d 539 // check the response token
ee12b079 86:a26f5f22631d 540 if ((spi.write(0xFF) & 0x1F) != 0x05) {
ee12b079 86:a26f5f22631d 541 cs_sd = 1;
ee12b079 86:a26f5f22631d 542 spi.write(0xFF);
ee12b079 86:a26f5f22631d 543 return 1;
ee12b079 86:a26f5f22631d 544 }
ee12b079 86:a26f5f22631d 545
ee12b079 86:a26f5f22631d 546 // wait for write to finish
ee12b079 86:a26f5f22631d 547 while (spi.write(0xFF) == 0);
ee12b079 86:a26f5f22631d 548
ee12b079 86:a26f5f22631d 549 cs_sd = 1;
ee12b079 86:a26f5f22631d 550 spi.write(0xFF);
ee12b079 86:a26f5f22631d 551 return 0;
ee12b079 86:a26f5f22631d 552 }
ee12b079 86:a26f5f22631d 553
ee12b079 86:a26f5f22631d 554 int disk_read(uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 555 {
ee12b079 86:a26f5f22631d 556 // set read address for single block (CMD17)
ee12b079 86:a26f5f22631d 557 if (cmd(17, block_number * cdv) != 0) {
ee12b079 86:a26f5f22631d 558 return 1;
ee12b079 86:a26f5f22631d 559 }
ee12b079 86:a26f5f22631d 560
ee12b079 86:a26f5f22631d 561 // receive the data
ee12b079 86:a26f5f22631d 562 read(buffer, 512);
ee12b079 86:a26f5f22631d 563 return 0;
ee12b079 86:a26f5f22631d 564 }
ee12b079 86:a26f5f22631d 565
ee12b079 86:a26f5f22631d 566 int read(uint8_t *buffer, uint32_t length)
ee12b079 86:a26f5f22631d 567 {
ee12b079 86:a26f5f22631d 568 cs_sd = 0;
ee12b079 86:a26f5f22631d 569
ee12b079 86:a26f5f22631d 570 // read until start byte (0xFF)
ee12b079 86:a26f5f22631d 571 while (spi.write(0xFF) != 0xFE);
ee12b079 86:a26f5f22631d 572
ee12b079 86:a26f5f22631d 573 // read data
ee12b079 86:a26f5f22631d 574 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 575 buffer[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 576 }
ee12b079 86:a26f5f22631d 577 spi.write(0xFF); // checksum
ee12b079 86:a26f5f22631d 578 spi.write(0xFF);
ee12b079 86:a26f5f22631d 579
ee12b079 86:a26f5f22631d 580 cs_sd = 1;
ee12b079 86:a26f5f22631d 581 spi.write(0xFF);
ee12b079 86:a26f5f22631d 582 return 0;
ee12b079 86:a26f5f22631d 583 }
ee12b079 86:a26f5f22631d 584
ee12b079 86:a26f5f22631d 585 int disk_erase(int startBlock, int totalBlocks)
ee12b079 86:a26f5f22631d 586 {
ee12b079 86:a26f5f22631d 587 if(cmd(32, startBlock * cdv) != 0) {
ee12b079 86:a26f5f22631d 588 return 1;
ee12b079 86:a26f5f22631d 589 }
ee12b079 86:a26f5f22631d 590 if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) {
ee12b079 86:a26f5f22631d 591 return 1;
ee12b079 86:a26f5f22631d 592 }
ee12b079 86:a26f5f22631d 593 if (cmd(38,0) != 0) {
ee12b079 86:a26f5f22631d 594 return 1;
ee12b079 86:a26f5f22631d 595 }
ee12b079 86:a26f5f22631d 596
ee12b079 86:a26f5f22631d 597 return 0; //normal return
ee12b079 86:a26f5f22631d 598 }