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@207:28a07943dded, 2016-07-02 (annotated)

Committer:
chaithanyarss
Date:
Sat Jul 02 10:48:30 2016 +0000
Revision:
207:28a07943dded
Parent:
206:fba4aeebf004 
Except Flash everything else.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ee12b079 86:a26f5f22631d 1 //SPI spi(PTE1, PTE3, PTE2); // MOSI,MISO, CLOCK microcontroller(in order)
ee12b079 86:a26f5f22631d 2 //DigitalOut cs_sd(PTE22);
ee12b079 86:a26f5f22631d 3
ee12b079 86:a26f5f22631d 4 //Serial sd1(USBTX,USBRX);
ee12b079 86:a26f5f22631d 5
ee12b079 86:a26f5f22631d 6
ee12b079 86:a26f5f22631d 7 #define SD_COMMAND_TIMEOUT 5000
ee12b079 86:a26f5f22631d 8
ee12b079 86:a26f5f22631d 9 #define SD_DBG 0
ee12b079 86:a26f5f22631d 10
ee12b079 86:a26f5f22631d 11 #define R1_IDLE_STATE (1 << 0)
ee12b079 86:a26f5f22631d 12 #define R1_ERASE_RESET (1 << 1)
ee12b079 86:a26f5f22631d 13 #define R1_ILLEGAL_COMMAND (1 << 2)
ee12b079 86:a26f5f22631d 14 #define R1_COM_CRC_ERROR (1 << 3)
ee12b079 86:a26f5f22631d 15 #define R1_ERASE_SEQUENCE_ERROR (1 << 4)
ee12b079 86:a26f5f22631d 16 #define R1_ADDRESS_ERROR (1 << 5)
ee12b079 86:a26f5f22631d 17 #define R1_PARAMETER_ERROR (1 << 6)
ee12b079 86:a26f5f22631d 18
ee12b079 86:a26f5f22631d 19
ee12b079 86:a26f5f22631d 20
ee12b079 86:a26f5f22631d 21 #define SD_MAX_CYCLES 10000
ee12b079 86:a26f5f22631d 22
chaithanyarss 187:2c7263530c57 23 uint32_t SD_SCP_FIRST=1001;
chaithanyarss 187:2c7263530c57 24 uint32_t SD_SCP_LAST=2000;
chaithanyarss 187:2c7263530c57 25 uint32_t SD_SFF_AT_FIRST=2001;
chaithanyarss 187:2c7263530c57 26 uint32_t SD_SFF_AT_LAST = 3000;
chaithanyarss 187:2c7263530c57 27 uint32_t SD_SFF_BT_FIRST =3001;
chaithanyarss 187:2c7263530c57 28 uint32_t SD_SFF_BT_LAST=4000;
chaithanyarss 187:2c7263530c57 29 uint32_t SD_HK_ARCH_FIRST=4001;
chaithanyarss 187:2c7263530c57 30 uint32_t SD_HK_ARCH_LAST= 5000;
chaithanyarss 187:2c7263530c57 31 uint32_t LOG_FIRST =5001;
chaithanyarss 187:2c7263530c57 32 uint32_t LOG_LAST=6000;
chaithanyarss 187:2c7263530c57 33 uint32_t SD_MNG_SECT=7000;
chaithanyarss 206:fba4aeebf004 34 uint16_t SD_LIB_WRITES = 0;
ee12b079 86:a26f5f22631d 35
chaithanyarss 187:2c7263530c57 36 extern uint8_t SD_INIT_FLAGS;
ee12b079 86:a26f5f22631d 37
ee12b079 86:a26f5f22631d 38 int initialise_card();
ee12b079 86:a26f5f22631d 39 int initialise_card_v1();
ee12b079 86:a26f5f22631d 40 int initialise_card_v2();
ee12b079 86:a26f5f22631d 41 int disk_write(const uint8_t *, uint64_t);
ee12b079 86:a26f5f22631d 42 int disk_read(uint8_t *, uint64_t);
ee12b079 86:a26f5f22631d 43 int disk_erase(int,int);
chaithanyarss 207:28a07943dded 44 int disk_read_statusbits(uint8_t *);
ee12b079 86:a26f5f22631d 45
chaithanyarss 206:fba4aeebf004 46 void FCTN_SD_MNG();
chaithanyarss 187:2c7263530c57 47 int INCREMENT_SD_LIB(uint8_t);
ee12b079 86:a26f5f22631d 48
ee12b079 86:a26f5f22631d 49
ee12b079 86:a26f5f22631d 50 int cmd(int, int);
ee12b079 86:a26f5f22631d 51 int cmd58();
ee12b079 86:a26f5f22631d 52 int cmdx(int, int);
ee12b079 86:a26f5f22631d 53 int cmd8();
ee12b079 86:a26f5f22631d 54 int read(uint8_t*, uint32_t );
ee12b079 86:a26f5f22631d 55 int write(const uint8_t*, uint32_t );
ee12b079 86:a26f5f22631d 56 static uint32_t ext_bits(unsigned char *, int , int );
ee12b079 92:bce22b38c440 57 int SD_WRITE(uint8_t*,uint32_t,uint8_t);
chaithanyarss 187:2c7263530c57 58 int FCTN_CDMS_SD_INIT();
chaithanyarss 206:fba4aeebf004 59 uint8_t SD_READ(uint8_t*,uint32_t,uint8_t);
ee12b079 86:a26f5f22631d 60 #define SDCARD_FAIL 0
ee12b079 86:a26f5f22631d 61 #define SDCARD_V1 1
ee12b079 86:a26f5f22631d 62 #define SDCARD_V2 2
ee12b079 86:a26f5f22631d 63 #define SDCARD_V2HC 3
ee12b079 86:a26f5f22631d 64
ee12b079 86:a26f5f22631d 65 int cdv;
ee12b079 86:a26f5f22631d 66 uint64_t sd_sectors();
ee12b079 86:a26f5f22631d 67 uint64_t sectors;
ee12b079 86:a26f5f22631d 68
chaithanyarss 187:2c7263530c57 69 int FCTN_CDMS_SD_INIT()
chaithanyarss 187:2c7263530c57 70 {
chaithanyarss 187:2c7263530c57 71 int i = initialise_card();
chaithanyarss 187:2c7263530c57 72 debug_if(SD_DBG, "init card = %d\n", i);
chaithanyarss 187:2c7263530c57 73 sectors = sd_sectors();
chaithanyarss 187:2c7263530c57 74
chaithanyarss 187:2c7263530c57 75 // Set block length to 512 (CMD16)
chaithanyarss 187:2c7263530c57 76 if (cmd(16, 512) != 0) {
chaithanyarss 187:2c7263530c57 77 debug("\rSet 512-byte block timed out\r\n");
chaithanyarss 187:2c7263530c57 78 return 1;
chaithanyarss 187:2c7263530c57 79 } else {
chaithanyarss 187:2c7263530c57 80 //printf("\rDisk initialization successfull\r\n");
chaithanyarss 187:2c7263530c57 81 }
chaithanyarss 187:2c7263530c57 82
chaithanyarss 187:2c7263530c57 83 spi.frequency(1000000); // Set to 1MHz for data transfer
chaithanyarss 187:2c7263530c57 84 return 0;
ee12b079 86:a26f5f22631d 85 }
ee12b079 86:a26f5f22631d 86
chaithanyarss 206:fba4aeebf004 87 void FCTN_SD_MNGR()
ee12b079 86:a26f5f22631d 88 {
ee12b079 92:bce22b38c440 89 uint32_t fsc;
chaithanyarss 187:2c7263530c57 90 uint32_t start_fsc;
ee12b079 92:bce22b38c440 91 uint8_t buffer[512];
ee12b079 92:bce22b38c440 92 int b=disk_read(buffer, SD_MNG_SECT);
chaithanyarss 206:fba4aeebf004 93
chaithanyarss 206:fba4aeebf004 94 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
chaithanyarss 206:fba4aeebf004 95 start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
chaithanyarss 206:fba4aeebf004 96 FSC_CURRENT[1] = fsc;
chaithanyarss 206:fba4aeebf004 97 FSC_LAST[1] = start_fsc;
chaithanyarss 206:fba4aeebf004 98
chaithanyarss 206:fba4aeebf004 99 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
chaithanyarss 206:fba4aeebf004 100 start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
chaithanyarss 206:fba4aeebf004 101 FSC_CURRENT[2] = fsc;
chaithanyarss 206:fba4aeebf004 102 FSC_LAST[2] = start_fsc;
chaithanyarss 206:fba4aeebf004 103
chaithanyarss 206:fba4aeebf004 104 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
chaithanyarss 206:fba4aeebf004 105 start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23];
chaithanyarss 206:fba4aeebf004 106 FSC_CURRENT[3] = fsc;
chaithanyarss 206:fba4aeebf004 107 FSC_LAST[3] = start_fsc;
chaithanyarss 206:fba4aeebf004 108
chaithanyarss 206:fba4aeebf004 109 fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27];
chaithanyarss 206:fba4aeebf004 110 start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31];
chaithanyarss 206:fba4aeebf004 111 FSC_CURRENT[4] = fsc;
chaithanyarss 206:fba4aeebf004 112 FSC_LAST[4] = start_fsc;
chaithanyarss 206:fba4aeebf004 113
chaithanyarss 206:fba4aeebf004 114 fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35];
chaithanyarss 206:fba4aeebf004 115 start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39];
chaithanyarss 206:fba4aeebf004 116 FSC_CURRENT[5] = fsc;
chaithanyarss 206:fba4aeebf004 117 FSC_LAST[5] = start_fsc;
chaithanyarss 187:2c7263530c57 118 }
chaithanyarss 187:2c7263530c57 119
chaithanyarss 187:2c7263530c57 120 int INCREMENT_SD_LIB(uint8_t sid)
chaithanyarss 187:2c7263530c57 121 {
chaithanyarss 187:2c7263530c57 122 uint32_t fsc;
chaithanyarss 187:2c7263530c57 123 uint32_t start_fsc;
chaithanyarss 206:fba4aeebf004 124 int i;
chaithanyarss 187:2c7263530c57 125 uint8_t buffer[512];
chaithanyarss 206:fba4aeebf004 126 SD_MNG_SECT += SD_LIB_WRITES/(int)0xFFFF;
chaithanyarss 206:fba4aeebf004 127 SD_LIB_WRITES = SD_LIB_WRITES%(int)0xFFFF;
chaithanyarss 187:2c7263530c57 128 disk_read(buffer,SD_MNG_SECT);
chaithanyarss 187:2c7263530c57 129 if(sid==0x01)
ee12b079 86:a26f5f22631d 130 {
chaithanyarss 187:2c7263530c57 131 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
chaithanyarss 187:2c7263530c57 132 start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
chaithanyarss 207:28a07943dded 133 fsc++;
chaithanyarss 187:2c7263530c57 134 buffer[0]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 135 buffer[1]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 136 buffer[2]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 137 buffer[3]=(uint8_t) (fsc & 0xFF);
chaithanyarss 187:2c7263530c57 138 if(fsc > SD_SCP_LAST-SD_SCP_FIRST+1)
chaithanyarss 187:2c7263530c57 139 {
chaithanyarss 187:2c7263530c57 140 start_fsc = start_fsc+1;
chaithanyarss 187:2c7263530c57 141 buffer[4]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 142 buffer[5]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 143 buffer[6]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 144 buffer[7]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 187:2c7263530c57 145 }
chaithanyarss 207:28a07943dded 146
chaithanyarss 207:28a07943dded 147 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 207:28a07943dded 148 if(i == 0)
chaithanyarss 207:28a07943dded 149 {
chaithanyarss 207:28a07943dded 150 FSC_CURRENT[1] = fsc;
chaithanyarss 207:28a07943dded 151 FSC_LAST[1] = start_fsc;
chaithanyarss 207:28a07943dded 152 return i;
chaithanyarss 207:28a07943dded 153 }
ee12b079 86:a26f5f22631d 154 }
chaithanyarss 187:2c7263530c57 155 if(sid==0x02)
ee12b079 86:a26f5f22631d 156 {
ee12b079 92:bce22b38c440 157 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
chaithanyarss 187:2c7263530c57 158 start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
chaithanyarss 207:28a07943dded 159 fsc++;
chaithanyarss 187:2c7263530c57 160 buffer[8]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 161 buffer[9]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 162 buffer[10]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 163 buffer[11]=(uint8_t) (fsc & 0xFF);
chaithanyarss 187:2c7263530c57 164 if(fsc > SD_SFF_AT_LAST-SD_SFF_AT_FIRST+1)
chaithanyarss 187:2c7263530c57 165 {
chaithanyarss 187:2c7263530c57 166 start_fsc = start_fsc+1;
chaithanyarss 187:2c7263530c57 167 buffer[12]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 168 buffer[13]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 169 buffer[14]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 170 buffer[15]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 187:2c7263530c57 171 }
chaithanyarss 207:28a07943dded 172 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 207:28a07943dded 173 if(i == 0)
chaithanyarss 207:28a07943dded 174 {
chaithanyarss 207:28a07943dded 175 FSC_CURRENT[2] = fsc;
chaithanyarss 207:28a07943dded 176 FSC_LAST[2] = start_fsc;
chaithanyarss 207:28a07943dded 177 return i;
chaithanyarss 207:28a07943dded 178 }
ee12b079 86:a26f5f22631d 179 }
chaithanyarss 187:2c7263530c57 180 if(sid==0x03)
ee12b079 86:a26f5f22631d 181 {
ee12b079 92:bce22b38c440 182 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
chaithanyarss 187:2c7263530c57 183 start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23];
chaithanyarss 207:28a07943dded 184 fsc++;
chaithanyarss 187:2c7263530c57 185 buffer[16]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 186 buffer[17]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 187 buffer[18]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 188 buffer[19]=(uint8_t) (fsc & 0xFF);
chaithanyarss 187:2c7263530c57 189 if(fsc > SD_SFF_BT_LAST-SD_SFF_BT_FIRST+1)
chaithanyarss 187:2c7263530c57 190 {
chaithanyarss 187:2c7263530c57 191 start_fsc = start_fsc+1;
chaithanyarss 187:2c7263530c57 192 buffer[20]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 193 buffer[21]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 194 buffer[22]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 195 buffer[23]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 187:2c7263530c57 196 }
chaithanyarss 207:28a07943dded 197 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 207:28a07943dded 198 if(i == 0)
chaithanyarss 207:28a07943dded 199 {
chaithanyarss 207:28a07943dded 200 FSC_CURRENT[3] = fsc;
chaithanyarss 207:28a07943dded 201 FSC_LAST[3] = start_fsc;
chaithanyarss 207:28a07943dded 202 return i;
chaithanyarss 207:28a07943dded 203 }
ee12b079 86:a26f5f22631d 204 }
chaithanyarss 187:2c7263530c57 205 if(sid==0x04)
chaithanyarss 187:2c7263530c57 206 {
chaithanyarss 187:2c7263530c57 207 fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27];
chaithanyarss 187:2c7263530c57 208 start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31];
chaithanyarss 207:28a07943dded 209 fsc++;
chaithanyarss 187:2c7263530c57 210 buffer[24]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 211 buffer[25]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 212 buffer[26]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 213 buffer[27]=(uint8_t) (fsc & 0xFF);
chaithanyarss 187:2c7263530c57 214 if(fsc > SD_HK_ARCH_LAST-SD_HK_ARCH_FIRST+1)
chaithanyarss 187:2c7263530c57 215 {
chaithanyarss 187:2c7263530c57 216 start_fsc = start_fsc+1;
chaithanyarss 187:2c7263530c57 217 buffer[28]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 218 buffer[29]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 219 buffer[30]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 220 buffer[31]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 187:2c7263530c57 221 }
chaithanyarss 207:28a07943dded 222 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 207:28a07943dded 223 if(i == 0)
chaithanyarss 207:28a07943dded 224 {
chaithanyarss 207:28a07943dded 225 FSC_CURRENT[4] = fsc;
chaithanyarss 207:28a07943dded 226 FSC_LAST[4] = start_fsc;
chaithanyarss 207:28a07943dded 227 return i;
chaithanyarss 207:28a07943dded 228 }
chaithanyarss 187:2c7263530c57 229 }
chaithanyarss 187:2c7263530c57 230 if(sid==0x05)
chaithanyarss 187:2c7263530c57 231 {
chaithanyarss 187:2c7263530c57 232 fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35];
chaithanyarss 187:2c7263530c57 233 start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39];
chaithanyarss 207:28a07943dded 234 fsc++;
chaithanyarss 187:2c7263530c57 235 buffer[32]=(uint8_t) (fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 236 buffer[33]=(uint8_t) (fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 237 buffer[34]=(uint8_t) (fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 238 buffer[35]=(uint8_t) (fsc & 0xFF);
chaithanyarss 187:2c7263530c57 239 if(fsc > LOG_LAST-LOG_FIRST+1)
chaithanyarss 187:2c7263530c57 240 {
chaithanyarss 187:2c7263530c57 241 start_fsc = start_fsc+1;
chaithanyarss 187:2c7263530c57 242 buffer[36]=(uint8_t) (start_fsc>>24 & 0xFF);
chaithanyarss 187:2c7263530c57 243 buffer[37]=(uint8_t) (start_fsc>>16 & 0xFF);
chaithanyarss 187:2c7263530c57 244 buffer[38]=(uint8_t) (start_fsc>>8 & 0xFF);
chaithanyarss 187:2c7263530c57 245 buffer[39]=(uint8_t) (start_fsc & 0xFF);
chaithanyarss 187:2c7263530c57 246 }
chaithanyarss 207:28a07943dded 247 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 207:28a07943dded 248 if(i == 0)
chaithanyarss 207:28a07943dded 249 {
chaithanyarss 207:28a07943dded 250 FSC_CURRENT[5] = fsc;
chaithanyarss 207:28a07943dded 251 FSC_LAST[5] = start_fsc;
chaithanyarss 207:28a07943dded 252 return i;
chaithanyarss 207:28a07943dded 253 }
chaithanyarss 187:2c7263530c57 254 }
chaithanyarss 187:2c7263530c57 255 return -1;
ee12b079 86:a26f5f22631d 256 }
ee12b079 86:a26f5f22631d 257
ee12b079 86:a26f5f22631d 258
ee12b079 92:bce22b38c440 259 int SD_WRITE(uint8_t* buffer,uint32_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 260 {
ee12b079 86:a26f5f22631d 261 uint32_t block_number;
chaithanyarss 187:2c7263530c57 262 int result = 10;
chaithanyarss 187:2c7263530c57 263 if(sid==0x01)
ee12b079 86:a26f5f22631d 264 {
chaithanyarss 187:2c7263530c57 265 //block_number=SD_SCP_FIRST+(fsc%(SD_SCP_LAST-SD_SCP_FIRST+1))-1;
ee12b079 92:bce22b38c440 266 block_number=SD_SCP_FIRST+fsc;
ee12b079 86:a26f5f22631d 267 result= disk_write(buffer,block_number);
chaithanyarss 187:2c7263530c57 268 if(result == 0)
chaithanyarss 206:fba4aeebf004 269 {
chaithanyarss 206:fba4aeebf004 270 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 206:fba4aeebf004 271 SD_LIB_WRITES++;
chaithanyarss 206:fba4aeebf004 272 }
chaithanyarss 187:2c7263530c57 273 return result;
chaithanyarss 187:2c7263530c57 274 }
chaithanyarss 187:2c7263530c57 275 if(sid==0x02)
chaithanyarss 187:2c7263530c57 276 {
chaithanyarss 187:2c7263530c57 277 //block_number= SD_SFF_AT_FIRST+(fsc%(SD_SFF_AT_LAST - SD_SFF_AT_FIRST+1))-1;
chaithanyarss 187:2c7263530c57 278 block_number= SD_SFF_AT_FIRST+fsc;
chaithanyarss 187:2c7263530c57 279 result= disk_write(buffer,block_number);
chaithanyarss 187:2c7263530c57 280 if(result == 0)
chaithanyarss 206:fba4aeebf004 281 {
chaithanyarss 206:fba4aeebf004 282 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 206:fba4aeebf004 283 SD_LIB_WRITES++;
chaithanyarss 206:fba4aeebf004 284 }
ee12b079 86:a26f5f22631d 285 return result;
ee12b079 86:a26f5f22631d 286 }
chaithanyarss 187:2c7263530c57 287 if(sid==0x03)
ee12b079 86:a26f5f22631d 288 {
chaithanyarss 187:2c7263530c57 289 //block_number= SD_SFF_BT_FIRST +(fsc%(SD_SFF_BT_LAST - SD_SFF_BT_FIRST +1))-1;
chaithanyarss 187:2c7263530c57 290 block_number= SD_SFF_BT_FIRST +fsc;
ee12b079 86:a26f5f22631d 291 result= disk_write(buffer,block_number);
chaithanyarss 187:2c7263530c57 292 if(result == 0)
chaithanyarss 206:fba4aeebf004 293 {
chaithanyarss 206:fba4aeebf004 294 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 206:fba4aeebf004 295 SD_LIB_WRITES++;
chaithanyarss 206:fba4aeebf004 296 }
ee12b079 86:a26f5f22631d 297 return result;
ee12b079 86:a26f5f22631d 298 }
chaithanyarss 187:2c7263530c57 299 if(sid==0x04)
ee12b079 86:a26f5f22631d 300 {
chaithanyarss 187:2c7263530c57 301 //block_number=SD_HK_ARCH_FIRST +(fsc%(SD_HK_ARCH_LAST - SD_HK_ARCH_FIRST +1))-1;
chaithanyarss 187:2c7263530c57 302 block_number=SD_HK_ARCH_FIRST +fsc;
ee12b079 86:a26f5f22631d 303 result= disk_write(buffer,block_number);
chaithanyarss 187:2c7263530c57 304 if(result == 0)
chaithanyarss 206:fba4aeebf004 305 {
chaithanyarss 206:fba4aeebf004 306 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 206:fba4aeebf004 307 SD_LIB_WRITES++;
chaithanyarss 206:fba4aeebf004 308 }
ee12b079 86:a26f5f22631d 309 return result;
ee12b079 86:a26f5f22631d 310 }
chaithanyarss 187:2c7263530c57 311 if(sid==0x05)
ee12b079 86:a26f5f22631d 312 {
chaithanyarss 187:2c7263530c57 313 //block_number= LOG_FIRST +(fsc%(LOG_FIRST - LOG_FIRST +1))-1;
chaithanyarss 187:2c7263530c57 314 block_number= LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 315 result= disk_write(buffer,block_number);
chaithanyarss 187:2c7263530c57 316 if(result == 0)
chaithanyarss 206:fba4aeebf004 317 {
chaithanyarss 206:fba4aeebf004 318 if(INCREMENT_SD_LIB(sid) == 0)
chaithanyarss 206:fba4aeebf004 319 SD_LIB_WRITES++;
chaithanyarss 206:fba4aeebf004 320 }
ee12b079 86:a26f5f22631d 321 return result;
ee12b079 86:a26f5f22631d 322 }
ee12b079 86:a26f5f22631d 323 return 1;
ee12b079 86:a26f5f22631d 324 }
ee12b079 86:a26f5f22631d 325
chaithanyarss 188:5f75962ae7ea 326 uint8_t SD_READ(uint8_t* buffer,uint32_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 327 {
chaithanyarss 206:fba4aeebf004 328 FCTN_SD_MNGR();
chaithanyarss 206:fba4aeebf004 329 uint32_t block_number;
chaithanyarss 206:fba4aeebf004 330 int result;
chaithanyarss 188:5f75962ae7ea 331 if(SD_SW_EN_DS == 1)
chaithanyarss 188:5f75962ae7ea 332 return 0x89;
chaithanyarss 187:2c7263530c57 333 if(sid==0x01)
ee12b079 86:a26f5f22631d 334 {
chaithanyarss 188:5f75962ae7ea 335 if(!(FSC_LAST[1]<=fsc && fsc<=FSC_CURRENT[1])){
chaithanyarss 188:5f75962ae7ea 336 return 0x86;
chaithanyarss 188:5f75962ae7ea 337 }
ee12b079 92:bce22b38c440 338 block_number=SD_SCP_FIRST + fsc;
ee12b079 86:a26f5f22631d 339 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 340 }
chaithanyarss 187:2c7263530c57 341 else if(sid==0x02)
ee12b079 86:a26f5f22631d 342 {
chaithanyarss 188:5f75962ae7ea 343 if(!(FSC_LAST[2]<=fsc && fsc<=FSC_CURRENT[2])){
chaithanyarss 188:5f75962ae7ea 344 return 0x86;
chaithanyarss 188:5f75962ae7ea 345 }
ee12b079 86:a26f5f22631d 346 block_number=SD_SFF_AT_FIRST + fsc;
ee12b079 86:a26f5f22631d 347 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 348 }
chaithanyarss 187:2c7263530c57 349 else if(sid==0x03)
ee12b079 86:a26f5f22631d 350 {
chaithanyarss 188:5f75962ae7ea 351 if(!(FSC_LAST[3]<=fsc && fsc<=FSC_CURRENT[3])){
chaithanyarss 188:5f75962ae7ea 352 return 0x86;
chaithanyarss 188:5f75962ae7ea 353 }
ee12b079 86:a26f5f22631d 354 block_number=SD_SFF_BT_FIRST + fsc;
ee12b079 86:a26f5f22631d 355 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 356 }
chaithanyarss 187:2c7263530c57 357 else if(sid==0x04)
ee12b079 86:a26f5f22631d 358 {
chaithanyarss 188:5f75962ae7ea 359 if(!(FSC_LAST[4]<=fsc && fsc<=FSC_CURRENT[4])){
chaithanyarss 188:5f75962ae7ea 360 return 0x86;
chaithanyarss 188:5f75962ae7ea 361 }
ee12b079 86:a26f5f22631d 362 block_number=SD_HK_ARCH_FIRST + fsc;
ee12b079 86:a26f5f22631d 363 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 364 }
chaithanyarss 187:2c7263530c57 365 else if(sid==0x05)
ee12b079 86:a26f5f22631d 366 {
chaithanyarss 188:5f75962ae7ea 367 if(!(FSC_LAST[5]<=fsc && fsc<=FSC_CURRENT[5])){
chaithanyarss 188:5f75962ae7ea 368 return 0x86;
chaithanyarss 188:5f75962ae7ea 369 }
ee12b079 86:a26f5f22631d 370 block_number=LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 371 result= disk_read(buffer,block_number);
ee12b079 86:a26f5f22631d 372 }
ee12b079 86:a26f5f22631d 373 else
ee12b079 86:a26f5f22631d 374 {
chaithanyarss 188:5f75962ae7ea 375 return 0x02;
ee12b079 86:a26f5f22631d 376 }
chaithanyarss 188:5f75962ae7ea 377 if(result == 0)
chaithanyarss 188:5f75962ae7ea 378 return 0xA0;
chaithanyarss 188:5f75962ae7ea 379 else
chaithanyarss 188:5f75962ae7ea 380 return 0x88;
ee12b079 86:a26f5f22631d 381 }
ee12b079 86:a26f5f22631d 382
ee12b079 86:a26f5f22631d 383
ee12b079 86:a26f5f22631d 384 int initialise_card()
ee12b079 86:a26f5f22631d 385 {
ee12b079 86:a26f5f22631d 386 // Set to 100kHz for initialisation, and clock card with cs_sd = 1
ee12b079 86:a26f5f22631d 387 spi.frequency(100000); // changed on 31 12 2015 to 1 MHz
ee12b079 86:a26f5f22631d 388 cs_sd = 1;
ee12b079 86:a26f5f22631d 389 for (int i = 0; i < 16; i++) {
ee12b079 86:a26f5f22631d 390 spi.write(0xFF);
ee12b079 86:a26f5f22631d 391 }
chaithanyarss 187:2c7263530c57 392 uint8_t R1_response = cmd(0,0);
chaithanyarss 187:2c7263530c57 393 gPC.printf("0x%02X",R1_response);
ee12b079 86:a26f5f22631d 394 // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
chaithanyarss 187:2c7263530c57 395 if (R1_response != R1_IDLE_STATE) {
ee12b079 86:a26f5f22631d 396 debug("No disk, or could not put SD card in to spi idle state\r\n");
ee12b079 86:a26f5f22631d 397 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 398 }
chaithanyarss 187:2c7263530c57 399 else
chaithanyarss 187:2c7263530c57 400 gPC.puts("SD Card is in IDLE state\n\r");
ee12b079 86:a26f5f22631d 401
chaithanyarss 187:2c7263530c57 402 // send CMD8 to determine whther it is ver 2.x
ee12b079 86:a26f5f22631d 403 int r = cmd8();
ee12b079 86:a26f5f22631d 404 if (r == R1_IDLE_STATE) {
chaithanyarss 187:2c7263530c57 405 gPC.puts("Entering V2\r");
chaithanyarss 187:2c7263530c57 406 int q = initialise_card_v2();
chaithanyarss 187:2c7263530c57 407 return q;
ee12b079 86:a26f5f22631d 408
ee12b079 86:a26f5f22631d 409 } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
chaithanyarss 187:2c7263530c57 410 gPC.puts("Entering V1");
ee12b079 86:a26f5f22631d 411 return initialise_card_v1();
ee12b079 86:a26f5f22631d 412
ee12b079 86:a26f5f22631d 413 } else {
ee12b079 86:a26f5f22631d 414 debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n");
ee12b079 86:a26f5f22631d 415 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 416 }
ee12b079 86:a26f5f22631d 417 }
ee12b079 86:a26f5f22631d 418
ee12b079 86:a26f5f22631d 419 int initialise_card_v1()
ee12b079 86:a26f5f22631d 420 {
ee12b079 86:a26f5f22631d 421 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 422 cmd(55, 0);
ee12b079 86:a26f5f22631d 423 if (cmd(41, 0) == 0) {
ee12b079 96:4ca92f9775e0 424 gPC.puts("\rv1 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 425 cdv = 512;
ee12b079 86:a26f5f22631d 426 debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r");
ee12b079 86:a26f5f22631d 427
ee12b079 86:a26f5f22631d 428 return SDCARD_V1;
ee12b079 86:a26f5f22631d 429 }
ee12b079 86:a26f5f22631d 430 }
ee12b079 86:a26f5f22631d 431
ee12b079 86:a26f5f22631d 432 debug("\rTimeout waiting for v1.x card\r\n");
ee12b079 86:a26f5f22631d 433 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 434 }
ee12b079 86:a26f5f22631d 435
ee12b079 86:a26f5f22631d 436
ee12b079 86:a26f5f22631d 437 int initialise_card_v2()
ee12b079 86:a26f5f22631d 438 {
ee12b079 86:a26f5f22631d 439 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 440 wait_ms(50);
ee12b079 86:a26f5f22631d 441 cmd58();
ee12b079 86:a26f5f22631d 442 cmd(55, 0);
ee12b079 86:a26f5f22631d 443 if (cmd(41, 0x40000000) == 0) {
ee12b079 134:4694fc291ce1 444 if (DEBUG)
ee12b079 134:4694fc291ce1 445 gPC.puts("\rv2 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 446 cmd58();
ee12b079 86:a26f5f22631d 447 debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r");
ee12b079 86:a26f5f22631d 448 cdv = 1;
ee12b079 86:a26f5f22631d 449 return SDCARD_V2;
ee12b079 86:a26f5f22631d 450 }
ee12b079 86:a26f5f22631d 451 }
ee12b079 86:a26f5f22631d 452
ee12b079 86:a26f5f22631d 453 debug("\rTimeout waiting for v2.x card\r\n");
ee12b079 86:a26f5f22631d 454 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 455 }
ee12b079 86:a26f5f22631d 456
ee12b079 86:a26f5f22631d 457 int cmd(int cmd, int arg)
ee12b079 86:a26f5f22631d 458 {
ee12b079 86:a26f5f22631d 459 cs_sd = 0;
ee12b079 86:a26f5f22631d 460
ee12b079 86:a26f5f22631d 461 // send a command
ee12b079 86:a26f5f22631d 462 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 463 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 464 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 465 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 466 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 467 spi.write(0x95);
ee12b079 86:a26f5f22631d 468
ee12b079 86:a26f5f22631d 469 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 470 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 471 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 472 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 473 cs_sd = 1;
ee12b079 86:a26f5f22631d 474 spi.write(0xFF);
ee12b079 86:a26f5f22631d 475 return response;
ee12b079 86:a26f5f22631d 476 }
ee12b079 86:a26f5f22631d 477 }
ee12b079 86:a26f5f22631d 478 cs_sd = 1;
ee12b079 86:a26f5f22631d 479 spi.write(0xFF);
ee12b079 86:a26f5f22631d 480 return -1; // timeout
ee12b079 86:a26f5f22631d 481 }
ee12b079 86:a26f5f22631d 482
ee12b079 86:a26f5f22631d 483
ee12b079 86:a26f5f22631d 484 int cmd58()
ee12b079 86:a26f5f22631d 485 {
ee12b079 86:a26f5f22631d 486 cs_sd = 0;
ee12b079 86:a26f5f22631d 487 int arg = 0;
ee12b079 86:a26f5f22631d 488
ee12b079 86:a26f5f22631d 489 // send a command
ee12b079 86:a26f5f22631d 490 spi.write(0x40 | 58);
ee12b079 86:a26f5f22631d 491 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 492 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 493 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 494 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 495 spi.write(0x95);
ee12b079 86:a26f5f22631d 496
ee12b079 86:a26f5f22631d 497 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 498 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 499 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 500 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 501 int ocr = spi.write(0xFF) << 24;
ee12b079 86:a26f5f22631d 502 ocr |= spi.write(0xFF) << 16;
ee12b079 86:a26f5f22631d 503 ocr |= spi.write(0xFF) << 8;
ee12b079 86:a26f5f22631d 504 ocr |= spi.write(0xFF) << 0;
ee12b079 86:a26f5f22631d 505 cs_sd = 1;
ee12b079 86:a26f5f22631d 506 spi.write(0xFF);
ee12b079 86:a26f5f22631d 507 return response;
ee12b079 86:a26f5f22631d 508 }
ee12b079 86:a26f5f22631d 509 }
ee12b079 86:a26f5f22631d 510 cs_sd = 1;
ee12b079 86:a26f5f22631d 511 spi.write(0xFF);
ee12b079 86:a26f5f22631d 512 return -1; // timeout
ee12b079 86:a26f5f22631d 513 }
ee12b079 86:a26f5f22631d 514
ee12b079 86:a26f5f22631d 515
ee12b079 86:a26f5f22631d 516 int cmd8()
ee12b079 86:a26f5f22631d 517 {
ee12b079 86:a26f5f22631d 518 cs_sd = 0;
ee12b079 86:a26f5f22631d 519
ee12b079 86:a26f5f22631d 520 // send a command
ee12b079 86:a26f5f22631d 521 spi.write(0x40 | 8); // CMD8
ee12b079 86:a26f5f22631d 522 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 523 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 524 spi.write(0x01); // 3.3v
ee12b079 86:a26f5f22631d 525 spi.write(0xAA); // check pattern
ee12b079 86:a26f5f22631d 526 spi.write(0x87); // crc
ee12b079 86:a26f5f22631d 527
ee12b079 86:a26f5f22631d 528 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 529 for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) {
ee12b079 86:a26f5f22631d 530 char response[5];
ee12b079 86:a26f5f22631d 531 response[0] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 532 if (!(response[0] & 0x80)) {
ee12b079 86:a26f5f22631d 533 for (int j = 1; j < 5; j++) {
ee12b079 86:a26f5f22631d 534 response[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 535 }
ee12b079 86:a26f5f22631d 536 cs_sd = 1;
ee12b079 86:a26f5f22631d 537 spi.write(0xFF);
ee12b079 86:a26f5f22631d 538 return response[0];
ee12b079 86:a26f5f22631d 539 }
ee12b079 86:a26f5f22631d 540 }
ee12b079 86:a26f5f22631d 541 cs_sd = 1;
ee12b079 86:a26f5f22631d 542 spi.write(0xFF);
ee12b079 86:a26f5f22631d 543 return -1; // timeout
ee12b079 86:a26f5f22631d 544 }
ee12b079 86:a26f5f22631d 545
ee12b079 86:a26f5f22631d 546 uint64_t sd_sectors()
ee12b079 86:a26f5f22631d 547 {
ee12b079 86:a26f5f22631d 548 uint32_t c_size, c_size_mult, read_bl_len;
ee12b079 86:a26f5f22631d 549 uint32_t block_len, mult, blocknr, capacity;
ee12b079 86:a26f5f22631d 550 uint32_t hc_c_size;
ee12b079 86:a26f5f22631d 551 uint64_t blocks;
ee12b079 86:a26f5f22631d 552
ee12b079 86:a26f5f22631d 553 // CMD9, Response R2 (R1 byte + 16-byte block read)
ee12b079 86:a26f5f22631d 554 if (cmdx(9, 0) != 0) {
ee12b079 86:a26f5f22631d 555 debug("\rDidn't get a response from the disk\n");
ee12b079 86:a26f5f22631d 556 return 0;
ee12b079 86:a26f5f22631d 557 }
ee12b079 86:a26f5f22631d 558
ee12b079 86:a26f5f22631d 559 uint8_t cs_sdd[16];
ee12b079 86:a26f5f22631d 560 if (read(cs_sdd, 16) != 0) {
ee12b079 86:a26f5f22631d 561 debug("\rCouldn't read cs_sdd response from disk\n");
ee12b079 86:a26f5f22631d 562 return 0;
ee12b079 86:a26f5f22631d 563 }
ee12b079 86:a26f5f22631d 564
ee12b079 86:a26f5f22631d 565 // cs_sdd_structure : cs_sdd[127:126]
ee12b079 86:a26f5f22631d 566 // c_size : cs_sdd[73:62]
ee12b079 86:a26f5f22631d 567 // c_size_mult : cs_sdd[49:47]
ee12b079 86:a26f5f22631d 568 // read_bl_len : cs_sdd[83:80] - the *maximum* read block length
ee12b079 86:a26f5f22631d 569
ee12b079 86:a26f5f22631d 570 int cs_sdd_structure = ext_bits(cs_sdd, 127, 126);
ee12b079 86:a26f5f22631d 571
ee12b079 86:a26f5f22631d 572 switch (cs_sdd_structure) {
ee12b079 86:a26f5f22631d 573 case 0:
ee12b079 86:a26f5f22631d 574 cdv = 512;
ee12b079 86:a26f5f22631d 575 c_size = ext_bits(cs_sdd, 73, 62);
ee12b079 86:a26f5f22631d 576 c_size_mult = ext_bits(cs_sdd, 49, 47);
ee12b079 86:a26f5f22631d 577 read_bl_len = ext_bits(cs_sdd, 83, 80);
ee12b079 86:a26f5f22631d 578
ee12b079 86:a26f5f22631d 579 block_len = 1 << read_bl_len;
ee12b079 86:a26f5f22631d 580 mult = 1 << (c_size_mult + 2);
ee12b079 86:a26f5f22631d 581 blocknr = (c_size + 1) * mult;
ee12b079 86:a26f5f22631d 582 capacity = blocknr * block_len;
ee12b079 86:a26f5f22631d 583 blocks = capacity / 512;
ee12b079 86:a26f5f22631d 584 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 585 break;
ee12b079 86:a26f5f22631d 586
ee12b079 86:a26f5f22631d 587 case 1:
ee12b079 86:a26f5f22631d 588 cdv = 1;
ee12b079 86:a26f5f22631d 589 hc_c_size = ext_bits(cs_sdd, 63, 48);
ee12b079 86:a26f5f22631d 590 blocks = (hc_c_size+1)*1024;
ee12b079 86:a26f5f22631d 591 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 592 break;
ee12b079 86:a26f5f22631d 593
ee12b079 86:a26f5f22631d 594 default:
ee12b079 86:a26f5f22631d 595 debug("cs_sdD struct unsupported\r\n");
ee12b079 86:a26f5f22631d 596 return 0;
ee12b079 86:a26f5f22631d 597 };
ee12b079 86:a26f5f22631d 598 return blocks;
ee12b079 86:a26f5f22631d 599 }
ee12b079 86:a26f5f22631d 600
ee12b079 86:a26f5f22631d 601 int cmdx(int cmd, int arg)
ee12b079 86:a26f5f22631d 602 {
ee12b079 86:a26f5f22631d 603 cs_sd = 0;
ee12b079 86:a26f5f22631d 604
ee12b079 86:a26f5f22631d 605 // send a command
ee12b079 86:a26f5f22631d 606 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 607 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 608 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 609 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 610 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 611 spi.write(0x95);
ee12b079 86:a26f5f22631d 612
ee12b079 86:a26f5f22631d 613 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 614 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 615 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 616 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 617 return response;
ee12b079 86:a26f5f22631d 618 }
ee12b079 86:a26f5f22631d 619 }
ee12b079 86:a26f5f22631d 620 cs_sd = 1;
ee12b079 86:a26f5f22631d 621 spi.write(0xFF);
chaithanyarss 187:2c7263530c57 622 return 1; // timeout
ee12b079 86:a26f5f22631d 623 }
ee12b079 86:a26f5f22631d 624
ee12b079 86:a26f5f22631d 625 static uint32_t ext_bits(unsigned char *data, int msb, int lsb)
ee12b079 86:a26f5f22631d 626 {
ee12b079 86:a26f5f22631d 627 uint32_t bits = 0;
ee12b079 86:a26f5f22631d 628 uint32_t size = 1 + msb - lsb;
ee12b079 86:a26f5f22631d 629 for (int i = 0; i < size; i++) {
ee12b079 86:a26f5f22631d 630 uint32_t position = lsb + i;
ee12b079 86:a26f5f22631d 631 uint32_t byte = 15 - (position >> 3);
ee12b079 86:a26f5f22631d 632 uint32_t bit = position & 0x7;
ee12b079 86:a26f5f22631d 633 uint32_t value = (data[byte] >> bit) & 1;
ee12b079 86:a26f5f22631d 634 bits |= value << i;
ee12b079 86:a26f5f22631d 635 }
ee12b079 86:a26f5f22631d 636 return bits;
ee12b079 86:a26f5f22631d 637 }
ee12b079 86:a26f5f22631d 638
ee12b079 86:a26f5f22631d 639 int disk_write(const uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 640
ee12b079 86:a26f5f22631d 641 {
ee12b079 86:a26f5f22631d 642 // set write address for single block (CMD24)
ee12b079 86:a26f5f22631d 643 if (cmd(24, block_number * cdv) != 0) {
ee12b079 86:a26f5f22631d 644 return 1;
ee12b079 86:a26f5f22631d 645 }
chaithanyarss 206:fba4aeebf004 646
chaithanyarss 206:fba4aeebf004 647 uint64_t temp;
chaithanyarss 206:fba4aeebf004 648 int r = write(buffer, 512);
chaithanyarss 206:fba4aeebf004 649 if(r == 0 ){
chaithanyarss 206:fba4aeebf004 650 temp = FCTN_CDMS_RD_RTC();
chaithanyarss 206:fba4aeebf004 651 TIME_LATEST_SD_RD = temp >> 7;
chaithanyarss 206:fba4aeebf004 652 }
chaithanyarss 206:fba4aeebf004 653 return r;
ee12b079 86:a26f5f22631d 654 }
ee12b079 86:a26f5f22631d 655
ee12b079 86:a26f5f22631d 656 int write(const uint8_t*buffer, uint32_t length)
ee12b079 86:a26f5f22631d 657 {
ee12b079 86:a26f5f22631d 658 cs_sd = 0;
ee12b079 86:a26f5f22631d 659
ee12b079 86:a26f5f22631d 660 // indicate start of block
ee12b079 86:a26f5f22631d 661 spi.write(0xFE);
ee12b079 86:a26f5f22631d 662
ee12b079 86:a26f5f22631d 663 // write the data
ee12b079 86:a26f5f22631d 664 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 665 spi.write(buffer[i]);
ee12b079 86:a26f5f22631d 666 }
ee12b079 86:a26f5f22631d 667
ee12b079 86:a26f5f22631d 668 // write the checksum
ee12b079 86:a26f5f22631d 669 spi.write(0xFF);
ee12b079 86:a26f5f22631d 670 spi.write(0xFF);
ee12b079 86:a26f5f22631d 671
ee12b079 86:a26f5f22631d 672 // check the response token
ee12b079 86:a26f5f22631d 673 if ((spi.write(0xFF) & 0x1F) != 0x05) {
ee12b079 86:a26f5f22631d 674 cs_sd = 1;
ee12b079 86:a26f5f22631d 675 spi.write(0xFF);
ee12b079 86:a26f5f22631d 676 return 1;
ee12b079 86:a26f5f22631d 677 }
ee12b079 86:a26f5f22631d 678
ee12b079 86:a26f5f22631d 679 // wait for write to finish
ee12b079 86:a26f5f22631d 680 while (spi.write(0xFF) == 0);
ee12b079 86:a26f5f22631d 681
ee12b079 86:a26f5f22631d 682 cs_sd = 1;
ee12b079 86:a26f5f22631d 683 spi.write(0xFF);
ee12b079 86:a26f5f22631d 684 return 0;
ee12b079 86:a26f5f22631d 685 }
ee12b079 86:a26f5f22631d 686
ee12b079 86:a26f5f22631d 687 int disk_read(uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 688 {
ee12b079 86:a26f5f22631d 689 // set read address for single block (CMD17)
ee12b079 86:a26f5f22631d 690 if (cmd(17, block_number * cdv) != 0) {
chaithanyarss 207:28a07943dded 691 SD_RD_ERROR = 1;
ee12b079 86:a26f5f22631d 692 return 1;
ee12b079 86:a26f5f22631d 693 }
ee12b079 86:a26f5f22631d 694
ee12b079 86:a26f5f22631d 695 // receive the data
ee12b079 86:a26f5f22631d 696 read(buffer, 512);
chaithanyarss 206:fba4aeebf004 697 uint64_t temp = FCTN_CDMS_RD_RTC();
chaithanyarss 206:fba4aeebf004 698 TIME_LATEST_SD_RD = temp >> 7;
ee12b079 86:a26f5f22631d 699 return 0;
ee12b079 86:a26f5f22631d 700 }
ee12b079 86:a26f5f22631d 701
ee12b079 86:a26f5f22631d 702 int read(uint8_t *buffer, uint32_t length)
ee12b079 86:a26f5f22631d 703 {
ee12b079 86:a26f5f22631d 704 cs_sd = 0;
ee12b079 86:a26f5f22631d 705
ee12b079 86:a26f5f22631d 706 // read until start byte (0xFF)
ee12b079 86:a26f5f22631d 707 while (spi.write(0xFF) != 0xFE);
ee12b079 86:a26f5f22631d 708
ee12b079 86:a26f5f22631d 709 // read data
ee12b079 86:a26f5f22631d 710 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 711 buffer[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 712 }
ee12b079 86:a26f5f22631d 713 spi.write(0xFF); // checksum
ee12b079 86:a26f5f22631d 714 spi.write(0xFF);
ee12b079 86:a26f5f22631d 715
ee12b079 86:a26f5f22631d 716 cs_sd = 1;
ee12b079 86:a26f5f22631d 717 spi.write(0xFF);
ee12b079 86:a26f5f22631d 718 return 0;
ee12b079 86:a26f5f22631d 719 }
ee12b079 86:a26f5f22631d 720
ee12b079 86:a26f5f22631d 721 int disk_erase(int startBlock, int totalBlocks)
ee12b079 86:a26f5f22631d 722 {
ee12b079 86:a26f5f22631d 723 if(cmd(32, startBlock * cdv) != 0) {
ee12b079 86:a26f5f22631d 724 return 1;
ee12b079 86:a26f5f22631d 725 }
ee12b079 86:a26f5f22631d 726 if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) {
ee12b079 86:a26f5f22631d 727 return 1;
ee12b079 86:a26f5f22631d 728 }
ee12b079 86:a26f5f22631d 729 if (cmd(38,0) != 0) {
ee12b079 86:a26f5f22631d 730 return 1;
ee12b079 86:a26f5f22631d 731 }
ee12b079 86:a26f5f22631d 732
ee12b079 86:a26f5f22631d 733 return 0; //normal return
chaithanyarss 207:28a07943dded 734 }
chaithanyarss 207:28a07943dded 735
chaithanyarss 207:28a07943dded 736 int disk_read_statusbits(uint8_t *buffer)
chaithanyarss 207:28a07943dded 737 {
chaithanyarss 207:28a07943dded 738 if (cmd(17, 0) != 0) {
chaithanyarss 207:28a07943dded 739 SD_RD_ERROR = 1;
chaithanyarss 207:28a07943dded 740 return -1;
chaithanyarss 207:28a07943dded 741 }
chaithanyarss 207:28a07943dded 742
chaithanyarss 207:28a07943dded 743 // receive the data
chaithanyarss 207:28a07943dded 744 return read(buffer,64);
ee12b079 92:bce22b38c440 745 }