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@223:7c802e1ccd30, 2016-07-04 (annotated)

Committer:
chaithanyarss
Date:
Mon Jul 04 13:53:20 2016 +0000
Revision:
223:7c802e1ccd30
Parent:
215:570251b23c7b 
All thread added, testing TCs

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chaithanyarss 215:570251b23c7b 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
ee12b079 194:ab528911780d 23 uint32_t SD_SCP_FIRST=1001;
ee12b079 194:ab528911780d 24 uint32_t SD_SCP_LAST=2000;
ee12b079 194:ab528911780d 25 uint32_t SD_SFF_AT_FIRST=2001;
ee12b079 194:ab528911780d 26 uint32_t SD_SFF_AT_LAST = 3000;
ee12b079 194:ab528911780d 27 uint32_t SD_SFF_BT_FIRST =3001;
ee12b079 194:ab528911780d 28 uint32_t SD_SFF_BT_LAST=4000;
ee12b079 194:ab528911780d 29 uint32_t SD_HK_ARCH_FIRST=4001;
ee12b079 194:ab528911780d 30 uint32_t SD_HK_ARCH_LAST= 5000;
ee12b079 194:ab528911780d 31 uint32_t LOG_FIRST =5001;
ee12b079 194:ab528911780d 32 uint32_t LOG_LAST=6000;
ee12b079 194:ab528911780d 33 uint32_t SD_MNG_SECT=7000;
ee12b079 209:63e9c8f8b5d2 34 uint16_t SD_LIB_WRITES = 0;
ee12b079 86:a26f5f22631d 35
ee12b079 194:ab528911780d 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);
ee12b079 209:63e9c8f8b5d2 44 int disk_read_statusbits(uint8_t *);
ee12b079 86:a26f5f22631d 45
ee12b079 209:63e9c8f8b5d2 46 void FCTN_SD_MNG();
ee12b079 194:ab528911780d 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);
ee12b079 194:ab528911780d 58 int FCTN_CDMS_SD_INIT();
ee12b079 195:6a549c0e9287 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
ee12b079 194:ab528911780d 69 int FCTN_CDMS_SD_INIT()
chaithanyarss 215:570251b23c7b 70 {
ee12b079 194:ab528911780d 71 int i = initialise_card();
ee12b079 194:ab528911780d 72 debug_if(SD_DBG, "init card = %d\n", i);
ee12b079 194:ab528911780d 73 sectors = sd_sectors();
ee12b079 194:ab528911780d 74
ee12b079 194:ab528911780d 75 // Set block length to 512 (CMD16)
ee12b079 194:ab528911780d 76 if (cmd(16, 512) != 0) {
ee12b079 194:ab528911780d 77 debug("\rSet 512-byte block timed out\r\n");
ee12b079 194:ab528911780d 78 return 1;
ee12b079 194:ab528911780d 79 } else {
chaithanyarss 215:570251b23c7b 80 //printf("\rDisk initialization successfull\r\n");
ee12b079 194:ab528911780d 81 }
ee12b079 194:ab528911780d 82
ee12b079 194:ab528911780d 83 spi.frequency(1000000); // Set to 1MHz for data transfer
ee12b079 194:ab528911780d 84 return 0;
ee12b079 86:a26f5f22631d 85 }
ee12b079 86:a26f5f22631d 86
ee12b079 209:63e9c8f8b5d2 87 void FCTN_SD_MNGR()
ee12b079 86:a26f5f22631d 88 {
chaithanyarss 223:7c802e1ccd30 89 /* cs_sd = 1;
chaithanyarss 223:7c802e1ccd30 90 gCS_RTC = 1;
chaithanyarss 223:7c802e1ccd30 91 gCS_ADF = 1;*/
ee12b079 92:bce22b38c440 92 uint32_t fsc;
ee12b079 194:ab528911780d 93 uint32_t start_fsc;
ee12b079 92:bce22b38c440 94 uint8_t buffer[512];
ee12b079 92:bce22b38c440 95 int b=disk_read(buffer, SD_MNG_SECT);
chaithanyarss 215:570251b23c7b 96
ee12b079 195:6a549c0e9287 97 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
ee12b079 195:6a549c0e9287 98 start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
ee12b079 195:6a549c0e9287 99 FSC_CURRENT[1] = fsc;
ee12b079 195:6a549c0e9287 100 FSC_LAST[1] = start_fsc;
ee12b079 209:63e9c8f8b5d2 101
ee12b079 195:6a549c0e9287 102 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
ee12b079 195:6a549c0e9287 103 start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
ee12b079 195:6a549c0e9287 104 FSC_CURRENT[2] = fsc;
ee12b079 195:6a549c0e9287 105 FSC_LAST[2] = start_fsc;
ee12b079 195:6a549c0e9287 106
ee12b079 195:6a549c0e9287 107 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
ee12b079 195:6a549c0e9287 108 start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23];
ee12b079 195:6a549c0e9287 109 FSC_CURRENT[3] = fsc;
ee12b079 195:6a549c0e9287 110 FSC_LAST[3] = start_fsc;
ee12b079 209:63e9c8f8b5d2 111
ee12b079 195:6a549c0e9287 112 fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27];
ee12b079 195:6a549c0e9287 113 start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31];
ee12b079 195:6a549c0e9287 114 FSC_CURRENT[4] = fsc;
ee12b079 195:6a549c0e9287 115 FSC_LAST[4] = start_fsc;
ee12b079 209:63e9c8f8b5d2 116
ee12b079 195:6a549c0e9287 117 fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35];
ee12b079 195:6a549c0e9287 118 start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39];
ee12b079 195:6a549c0e9287 119 FSC_CURRENT[5] = fsc;
ee12b079 195:6a549c0e9287 120 FSC_LAST[5] = start_fsc;
ee12b079 194:ab528911780d 121 }
ee12b079 194:ab528911780d 122
ee12b079 194:ab528911780d 123 int INCREMENT_SD_LIB(uint8_t sid)
ee12b079 194:ab528911780d 124 {
ee12b079 194:ab528911780d 125 uint32_t fsc;
ee12b079 194:ab528911780d 126 uint32_t start_fsc;
ee12b079 209:63e9c8f8b5d2 127 int i;
ee12b079 194:ab528911780d 128 uint8_t buffer[512];
ee12b079 209:63e9c8f8b5d2 129 SD_MNG_SECT += SD_LIB_WRITES/(int)0xFFFF;
ee12b079 209:63e9c8f8b5d2 130 SD_LIB_WRITES = SD_LIB_WRITES%(int)0xFFFF;
ee12b079 194:ab528911780d 131 disk_read(buffer,SD_MNG_SECT);
chaithanyarss 215:570251b23c7b 132 if(sid==0x01) {
ee12b079 194:ab528911780d 133 fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3];
ee12b079 194:ab528911780d 134 start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7];
ee12b079 203:424308159a56 135 fsc++;
ee12b079 194:ab528911780d 136 buffer[0]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 137 buffer[1]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 138 buffer[2]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 139 buffer[3]=(uint8_t) (fsc & 0xFF);
chaithanyarss 215:570251b23c7b 140 if(fsc > SD_SCP_LAST-SD_SCP_FIRST+1) {
ee12b079 194:ab528911780d 141 start_fsc = start_fsc+1;
ee12b079 194:ab528911780d 142 buffer[4]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 143 buffer[5]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 144 buffer[6]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 145 buffer[7]=(uint8_t) (start_fsc & 0xFF);
ee12b079 194:ab528911780d 146 }
chaithanyarss 215:570251b23c7b 147
ee12b079 203:424308159a56 148 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 215:570251b23c7b 149 if(i == 0) {
ee12b079 209:63e9c8f8b5d2 150 FSC_CURRENT[1] = fsc;
ee12b079 209:63e9c8f8b5d2 151 FSC_LAST[1] = start_fsc;
ee12b079 209:63e9c8f8b5d2 152 return i;
chaithanyarss 215:570251b23c7b 153 }
ee12b079 86:a26f5f22631d 154 }
chaithanyarss 215:570251b23c7b 155 if(sid==0x02) {
ee12b079 92:bce22b38c440 156 fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11];
ee12b079 194:ab528911780d 157 start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15];
ee12b079 203:424308159a56 158 fsc++;
ee12b079 194:ab528911780d 159 buffer[8]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 160 buffer[9]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 161 buffer[10]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 162 buffer[11]=(uint8_t) (fsc & 0xFF);
chaithanyarss 215:570251b23c7b 163 if(fsc > SD_SFF_AT_LAST-SD_SFF_AT_FIRST+1) {
ee12b079 194:ab528911780d 164 start_fsc = start_fsc+1;
ee12b079 194:ab528911780d 165 buffer[12]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 166 buffer[13]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 167 buffer[14]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 168 buffer[15]=(uint8_t) (start_fsc & 0xFF);
ee12b079 194:ab528911780d 169 }
ee12b079 203:424308159a56 170 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 215:570251b23c7b 171 if(i == 0) {
ee12b079 209:63e9c8f8b5d2 172 FSC_CURRENT[2] = fsc;
ee12b079 209:63e9c8f8b5d2 173 FSC_LAST[2] = start_fsc;
ee12b079 209:63e9c8f8b5d2 174 return i;
ee12b079 209:63e9c8f8b5d2 175 }
ee12b079 86:a26f5f22631d 176 }
chaithanyarss 215:570251b23c7b 177 if(sid==0x03) {
ee12b079 92:bce22b38c440 178 fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19];
ee12b079 194:ab528911780d 179 start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23];
ee12b079 203:424308159a56 180 fsc++;
ee12b079 194:ab528911780d 181 buffer[16]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 182 buffer[17]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 183 buffer[18]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 184 buffer[19]=(uint8_t) (fsc & 0xFF);
chaithanyarss 215:570251b23c7b 185 if(fsc > SD_SFF_BT_LAST-SD_SFF_BT_FIRST+1) {
ee12b079 194:ab528911780d 186 start_fsc = start_fsc+1;
ee12b079 194:ab528911780d 187 buffer[20]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 188 buffer[21]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 189 buffer[22]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 190 buffer[23]=(uint8_t) (start_fsc & 0xFF);
ee12b079 194:ab528911780d 191 }
ee12b079 203:424308159a56 192 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 215:570251b23c7b 193 if(i == 0) {
ee12b079 209:63e9c8f8b5d2 194 FSC_CURRENT[3] = fsc;
ee12b079 209:63e9c8f8b5d2 195 FSC_LAST[3] = start_fsc;
ee12b079 209:63e9c8f8b5d2 196 return i;
ee12b079 209:63e9c8f8b5d2 197 }
ee12b079 86:a26f5f22631d 198 }
chaithanyarss 215:570251b23c7b 199 if(sid==0x04) {
ee12b079 194:ab528911780d 200 fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27];
ee12b079 194:ab528911780d 201 start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31];
ee12b079 203:424308159a56 202 fsc++;
ee12b079 194:ab528911780d 203 buffer[24]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 204 buffer[25]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 205 buffer[26]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 206 buffer[27]=(uint8_t) (fsc & 0xFF);
chaithanyarss 215:570251b23c7b 207 if(fsc > SD_HK_ARCH_LAST-SD_HK_ARCH_FIRST+1) {
ee12b079 194:ab528911780d 208 start_fsc = start_fsc+1;
ee12b079 194:ab528911780d 209 buffer[28]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 210 buffer[29]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 211 buffer[30]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 212 buffer[31]=(uint8_t) (start_fsc & 0xFF);
ee12b079 194:ab528911780d 213 }
ee12b079 203:424308159a56 214 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 215:570251b23c7b 215 if(i == 0) {
ee12b079 209:63e9c8f8b5d2 216 FSC_CURRENT[4] = fsc;
ee12b079 209:63e9c8f8b5d2 217 FSC_LAST[4] = start_fsc;
ee12b079 209:63e9c8f8b5d2 218 return i;
ee12b079 209:63e9c8f8b5d2 219 }
ee12b079 194:ab528911780d 220 }
chaithanyarss 215:570251b23c7b 221 if(sid==0x05) {
ee12b079 194:ab528911780d 222 fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35];
ee12b079 194:ab528911780d 223 start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39];
ee12b079 203:424308159a56 224 fsc++;
ee12b079 194:ab528911780d 225 buffer[32]=(uint8_t) (fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 226 buffer[33]=(uint8_t) (fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 227 buffer[34]=(uint8_t) (fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 228 buffer[35]=(uint8_t) (fsc & 0xFF);
chaithanyarss 215:570251b23c7b 229 if(fsc > LOG_LAST-LOG_FIRST+1) {
ee12b079 194:ab528911780d 230 start_fsc = start_fsc+1;
ee12b079 194:ab528911780d 231 buffer[36]=(uint8_t) (start_fsc>>24 & 0xFF);
ee12b079 194:ab528911780d 232 buffer[37]=(uint8_t) (start_fsc>>16 & 0xFF);
ee12b079 194:ab528911780d 233 buffer[38]=(uint8_t) (start_fsc>>8 & 0xFF);
ee12b079 194:ab528911780d 234 buffer[39]=(uint8_t) (start_fsc & 0xFF);
ee12b079 194:ab528911780d 235 }
ee12b079 203:424308159a56 236 i = disk_write(buffer,SD_MNG_SECT);
chaithanyarss 215:570251b23c7b 237 if(i == 0) {
ee12b079 209:63e9c8f8b5d2 238 FSC_CURRENT[5] = fsc;
ee12b079 209:63e9c8f8b5d2 239 FSC_LAST[5] = start_fsc;
ee12b079 209:63e9c8f8b5d2 240 return i;
ee12b079 209:63e9c8f8b5d2 241 }
ee12b079 194:ab528911780d 242 }
ee12b079 194:ab528911780d 243 return -1;
ee12b079 86:a26f5f22631d 244 }
ee12b079 86:a26f5f22631d 245
ee12b079 86:a26f5f22631d 246
ee12b079 92:bce22b38c440 247 int SD_WRITE(uint8_t* buffer,uint32_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 248 {
ee12b079 86:a26f5f22631d 249 uint32_t block_number;
ee12b079 194:ab528911780d 250 int result = 10;
chaithanyarss 215:570251b23c7b 251 if(sid==0x01) {
ee12b079 194:ab528911780d 252 //block_number=SD_SCP_FIRST+(fsc%(SD_SCP_LAST-SD_SCP_FIRST+1))-1;
ee12b079 92:bce22b38c440 253 block_number=SD_SCP_FIRST+fsc;
ee12b079 86:a26f5f22631d 254 result= disk_write(buffer,block_number);
chaithanyarss 215:570251b23c7b 255 if(result == 0) {
ee12b079 209:63e9c8f8b5d2 256 if(INCREMENT_SD_LIB(sid) == 0)
ee12b079 209:63e9c8f8b5d2 257 SD_LIB_WRITES++;
ee12b079 209:63e9c8f8b5d2 258 }
ee12b079 194:ab528911780d 259 return result;
ee12b079 194:ab528911780d 260 }
chaithanyarss 215:570251b23c7b 261 if(sid==0x02) {
ee12b079 194:ab528911780d 262 //block_number= SD_SFF_AT_FIRST+(fsc%(SD_SFF_AT_LAST - SD_SFF_AT_FIRST+1))-1;
ee12b079 194:ab528911780d 263 block_number= SD_SFF_AT_FIRST+fsc;
ee12b079 194:ab528911780d 264 result= disk_write(buffer,block_number);
chaithanyarss 215:570251b23c7b 265 if(result == 0) {
ee12b079 209:63e9c8f8b5d2 266 if(INCREMENT_SD_LIB(sid) == 0)
ee12b079 209:63e9c8f8b5d2 267 SD_LIB_WRITES++;
ee12b079 209:63e9c8f8b5d2 268 }
ee12b079 86:a26f5f22631d 269 return result;
ee12b079 86:a26f5f22631d 270 }
chaithanyarss 215:570251b23c7b 271 if(sid==0x03) {
ee12b079 194:ab528911780d 272 //block_number= SD_SFF_BT_FIRST +(fsc%(SD_SFF_BT_LAST - SD_SFF_BT_FIRST +1))-1;
ee12b079 194:ab528911780d 273 block_number= SD_SFF_BT_FIRST +fsc;
ee12b079 86:a26f5f22631d 274 result= disk_write(buffer,block_number);
chaithanyarss 215:570251b23c7b 275 if(result == 0) {
ee12b079 209:63e9c8f8b5d2 276 if(INCREMENT_SD_LIB(sid) == 0)
ee12b079 209:63e9c8f8b5d2 277 SD_LIB_WRITES++;
ee12b079 209:63e9c8f8b5d2 278 }
ee12b079 86:a26f5f22631d 279 return result;
ee12b079 86:a26f5f22631d 280 }
chaithanyarss 215:570251b23c7b 281 if(sid==0x04) {
ee12b079 194:ab528911780d 282 //block_number=SD_HK_ARCH_FIRST +(fsc%(SD_HK_ARCH_LAST - SD_HK_ARCH_FIRST +1))-1;
ee12b079 194:ab528911780d 283 block_number=SD_HK_ARCH_FIRST +fsc;
ee12b079 86:a26f5f22631d 284 result= disk_write(buffer,block_number);
chaithanyarss 215:570251b23c7b 285 if(result == 0) {
ee12b079 209:63e9c8f8b5d2 286 if(INCREMENT_SD_LIB(sid) == 0)
ee12b079 209:63e9c8f8b5d2 287 SD_LIB_WRITES++;
ee12b079 209:63e9c8f8b5d2 288 }
ee12b079 86:a26f5f22631d 289 return result;
ee12b079 86:a26f5f22631d 290 }
chaithanyarss 215:570251b23c7b 291 if(sid==0x05) {
ee12b079 194:ab528911780d 292 //block_number= LOG_FIRST +(fsc%(LOG_FIRST - LOG_FIRST +1))-1;
ee12b079 194:ab528911780d 293 block_number= LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 294 result= disk_write(buffer,block_number);
chaithanyarss 215:570251b23c7b 295 if(result == 0) {
ee12b079 209:63e9c8f8b5d2 296 if(INCREMENT_SD_LIB(sid) == 0)
ee12b079 209:63e9c8f8b5d2 297 SD_LIB_WRITES++;
ee12b079 209:63e9c8f8b5d2 298 }
ee12b079 86:a26f5f22631d 299 return result;
ee12b079 86:a26f5f22631d 300 }
ee12b079 86:a26f5f22631d 301 return 1;
ee12b079 86:a26f5f22631d 302 }
ee12b079 86:a26f5f22631d 303
ee12b079 195:6a549c0e9287 304 uint8_t SD_READ(uint8_t* buffer,uint32_t fsc,uint8_t sid)
ee12b079 86:a26f5f22631d 305 {
ee12b079 195:6a549c0e9287 306 FCTN_SD_MNGR();
ee12b079 209:63e9c8f8b5d2 307 uint32_t block_number;
ee12b079 209:63e9c8f8b5d2 308 int result;
ee12b079 195:6a549c0e9287 309 if(SD_SW_EN_DS == 1)
ee12b079 195:6a549c0e9287 310 return 0x89;
chaithanyarss 215:570251b23c7b 311 if(sid==0x01) {
chaithanyarss 215:570251b23c7b 312 if(!(FSC_LAST[1]<=fsc && fsc<=FSC_CURRENT[1])) {
ee12b079 195:6a549c0e9287 313 return 0x86;
ee12b079 195:6a549c0e9287 314 }
ee12b079 92:bce22b38c440 315 block_number=SD_SCP_FIRST + fsc;
ee12b079 86:a26f5f22631d 316 result= disk_read(buffer,block_number);
chaithanyarss 215:570251b23c7b 317 } else if(sid==0x02) {
chaithanyarss 215:570251b23c7b 318 if(!(FSC_LAST[2]<=fsc && fsc<=FSC_CURRENT[2])) {
ee12b079 195:6a549c0e9287 319 return 0x86;
ee12b079 195:6a549c0e9287 320 }
ee12b079 86:a26f5f22631d 321 block_number=SD_SFF_AT_FIRST + fsc;
ee12b079 86:a26f5f22631d 322 result= disk_read(buffer,block_number);
chaithanyarss 215:570251b23c7b 323 } else if(sid==0x03) {
chaithanyarss 215:570251b23c7b 324 if(!(FSC_LAST[3]<=fsc && fsc<=FSC_CURRENT[3])) {
ee12b079 195:6a549c0e9287 325 return 0x86;
ee12b079 195:6a549c0e9287 326 }
ee12b079 86:a26f5f22631d 327 block_number=SD_SFF_BT_FIRST + fsc;
ee12b079 86:a26f5f22631d 328 result= disk_read(buffer,block_number);
chaithanyarss 215:570251b23c7b 329 } else if(sid==0x04) {
chaithanyarss 215:570251b23c7b 330 if(!(FSC_LAST[4]<=fsc && fsc<=FSC_CURRENT[4])) {
ee12b079 195:6a549c0e9287 331 return 0x86;
ee12b079 195:6a549c0e9287 332 }
ee12b079 86:a26f5f22631d 333 block_number=SD_HK_ARCH_FIRST + fsc;
ee12b079 86:a26f5f22631d 334 result= disk_read(buffer,block_number);
chaithanyarss 215:570251b23c7b 335 } else if(sid==0x05) {
chaithanyarss 215:570251b23c7b 336 if(!(FSC_LAST[5]<=fsc && fsc<=FSC_CURRENT[5])) {
ee12b079 195:6a549c0e9287 337 return 0x86;
ee12b079 195:6a549c0e9287 338 }
ee12b079 86:a26f5f22631d 339 block_number=LOG_FIRST +fsc;
ee12b079 86:a26f5f22631d 340 result= disk_read(buffer,block_number);
chaithanyarss 215:570251b23c7b 341 } else {
ee12b079 195:6a549c0e9287 342 return 0x02;
ee12b079 86:a26f5f22631d 343 }
ee12b079 195:6a549c0e9287 344 if(result == 0)
ee12b079 195:6a549c0e9287 345 return 0xA0;
ee12b079 195:6a549c0e9287 346 else
ee12b079 195:6a549c0e9287 347 return 0x88;
ee12b079 86:a26f5f22631d 348 }
ee12b079 86:a26f5f22631d 349
ee12b079 86:a26f5f22631d 350
ee12b079 86:a26f5f22631d 351 int initialise_card()
ee12b079 86:a26f5f22631d 352 {
ee12b079 86:a26f5f22631d 353 // Set to 100kHz for initialisation, and clock card with cs_sd = 1
chaithanyarss 215:570251b23c7b 354 spi.frequency(100000); // changed on 31 12 2015 to 1 MHz
ee12b079 86:a26f5f22631d 355 cs_sd = 1;
ee12b079 86:a26f5f22631d 356 for (int i = 0; i < 16; i++) {
ee12b079 86:a26f5f22631d 357 spi.write(0xFF);
ee12b079 86:a26f5f22631d 358 }
ee12b079 194:ab528911780d 359 uint8_t R1_response = cmd(0,0);
ee12b079 194:ab528911780d 360 gPC.printf("0x%02X",R1_response);
ee12b079 86:a26f5f22631d 361 // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
ee12b079 194:ab528911780d 362 if (R1_response != R1_IDLE_STATE) {
ee12b079 86:a26f5f22631d 363 debug("No disk, or could not put SD card in to spi idle state\r\n");
ee12b079 86:a26f5f22631d 364 return SDCARD_FAIL;
chaithanyarss 215:570251b23c7b 365 } else
chaithanyarss 215:570251b23c7b 366 gPC.puts("SD Card is in IDLE state\n\r");
ee12b079 86:a26f5f22631d 367
ee12b079 194:ab528911780d 368 // send CMD8 to determine whther it is ver 2.x
ee12b079 86:a26f5f22631d 369 int r = cmd8();
ee12b079 86:a26f5f22631d 370 if (r == R1_IDLE_STATE) {
ee12b079 194:ab528911780d 371 gPC.puts("Entering V2\r");
ee12b079 194:ab528911780d 372 int q = initialise_card_v2();
ee12b079 194:ab528911780d 373 return q;
ee12b079 86:a26f5f22631d 374
ee12b079 86:a26f5f22631d 375 } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
ee12b079 194:ab528911780d 376 gPC.puts("Entering V1");
ee12b079 86:a26f5f22631d 377 return initialise_card_v1();
ee12b079 86:a26f5f22631d 378
ee12b079 86:a26f5f22631d 379 } else {
ee12b079 86:a26f5f22631d 380 debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n");
ee12b079 86:a26f5f22631d 381 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 382 }
ee12b079 86:a26f5f22631d 383 }
ee12b079 86:a26f5f22631d 384
ee12b079 86:a26f5f22631d 385 int initialise_card_v1()
ee12b079 86:a26f5f22631d 386 {
ee12b079 86:a26f5f22631d 387 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 388 cmd(55, 0);
ee12b079 86:a26f5f22631d 389 if (cmd(41, 0) == 0) {
ee12b079 96:4ca92f9775e0 390 gPC.puts("\rv1 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 391 cdv = 512;
ee12b079 86:a26f5f22631d 392 debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r");
ee12b079 86:a26f5f22631d 393
ee12b079 86:a26f5f22631d 394 return SDCARD_V1;
ee12b079 86:a26f5f22631d 395 }
ee12b079 86:a26f5f22631d 396 }
ee12b079 86:a26f5f22631d 397
ee12b079 86:a26f5f22631d 398 debug("\rTimeout waiting for v1.x card\r\n");
ee12b079 86:a26f5f22631d 399 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 400 }
ee12b079 86:a26f5f22631d 401
ee12b079 86:a26f5f22631d 402
ee12b079 86:a26f5f22631d 403 int initialise_card_v2()
ee12b079 86:a26f5f22631d 404 {
ee12b079 86:a26f5f22631d 405 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 406 wait_ms(50);
ee12b079 86:a26f5f22631d 407 cmd58();
ee12b079 86:a26f5f22631d 408 cmd(55, 0);
ee12b079 86:a26f5f22631d 409 if (cmd(41, 0x40000000) == 0) {
ee12b079 194:ab528911780d 410 if (DEBUG)
ee12b079 194:ab528911780d 411 gPC.puts("\rv2 initialization successfull\r\n");
ee12b079 86:a26f5f22631d 412 cmd58();
ee12b079 86:a26f5f22631d 413 debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r");
ee12b079 86:a26f5f22631d 414 cdv = 1;
ee12b079 86:a26f5f22631d 415 return SDCARD_V2;
ee12b079 86:a26f5f22631d 416 }
ee12b079 86:a26f5f22631d 417 }
ee12b079 86:a26f5f22631d 418
ee12b079 86:a26f5f22631d 419 debug("\rTimeout waiting for v2.x card\r\n");
ee12b079 86:a26f5f22631d 420 return SDCARD_FAIL;
ee12b079 86:a26f5f22631d 421 }
ee12b079 86:a26f5f22631d 422
ee12b079 86:a26f5f22631d 423 int cmd(int cmd, int arg)
ee12b079 86:a26f5f22631d 424 {
ee12b079 86:a26f5f22631d 425 cs_sd = 0;
ee12b079 86:a26f5f22631d 426
ee12b079 86:a26f5f22631d 427 // send a command
ee12b079 86:a26f5f22631d 428 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 429 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 430 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 431 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 432 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 433 spi.write(0x95);
ee12b079 86:a26f5f22631d 434
ee12b079 86:a26f5f22631d 435 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 436 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 437 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 438 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 439 cs_sd = 1;
ee12b079 86:a26f5f22631d 440 spi.write(0xFF);
ee12b079 86:a26f5f22631d 441 return response;
ee12b079 86:a26f5f22631d 442 }
ee12b079 86:a26f5f22631d 443 }
ee12b079 86:a26f5f22631d 444 cs_sd = 1;
ee12b079 86:a26f5f22631d 445 spi.write(0xFF);
ee12b079 86:a26f5f22631d 446 return -1; // timeout
ee12b079 86:a26f5f22631d 447 }
ee12b079 86:a26f5f22631d 448
ee12b079 86:a26f5f22631d 449
ee12b079 86:a26f5f22631d 450 int cmd58()
ee12b079 86:a26f5f22631d 451 {
ee12b079 86:a26f5f22631d 452 cs_sd = 0;
ee12b079 86:a26f5f22631d 453 int arg = 0;
ee12b079 86:a26f5f22631d 454
ee12b079 86:a26f5f22631d 455 // send a command
ee12b079 86:a26f5f22631d 456 spi.write(0x40 | 58);
ee12b079 86:a26f5f22631d 457 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 458 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 459 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 460 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 461 spi.write(0x95);
ee12b079 86:a26f5f22631d 462
ee12b079 86:a26f5f22631d 463 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 464 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 465 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 466 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 467 int ocr = spi.write(0xFF) << 24;
ee12b079 86:a26f5f22631d 468 ocr |= spi.write(0xFF) << 16;
ee12b079 86:a26f5f22631d 469 ocr |= spi.write(0xFF) << 8;
ee12b079 86:a26f5f22631d 470 ocr |= spi.write(0xFF) << 0;
ee12b079 86:a26f5f22631d 471 cs_sd = 1;
ee12b079 86:a26f5f22631d 472 spi.write(0xFF);
ee12b079 86:a26f5f22631d 473 return response;
ee12b079 86:a26f5f22631d 474 }
ee12b079 86:a26f5f22631d 475 }
ee12b079 86:a26f5f22631d 476 cs_sd = 1;
ee12b079 86:a26f5f22631d 477 spi.write(0xFF);
ee12b079 86:a26f5f22631d 478 return -1; // timeout
ee12b079 86:a26f5f22631d 479 }
ee12b079 86:a26f5f22631d 480
ee12b079 86:a26f5f22631d 481
ee12b079 86:a26f5f22631d 482 int cmd8()
ee12b079 86:a26f5f22631d 483 {
ee12b079 86:a26f5f22631d 484 cs_sd = 0;
ee12b079 86:a26f5f22631d 485
ee12b079 86:a26f5f22631d 486 // send a command
ee12b079 86:a26f5f22631d 487 spi.write(0x40 | 8); // CMD8
ee12b079 86:a26f5f22631d 488 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 489 spi.write(0x00); // reserved
ee12b079 86:a26f5f22631d 490 spi.write(0x01); // 3.3v
ee12b079 86:a26f5f22631d 491 spi.write(0xAA); // check pattern
ee12b079 86:a26f5f22631d 492 spi.write(0x87); // crc
ee12b079 86:a26f5f22631d 493
ee12b079 86:a26f5f22631d 494 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 495 for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) {
ee12b079 86:a26f5f22631d 496 char response[5];
ee12b079 86:a26f5f22631d 497 response[0] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 498 if (!(response[0] & 0x80)) {
ee12b079 86:a26f5f22631d 499 for (int j = 1; j < 5; j++) {
ee12b079 86:a26f5f22631d 500 response[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 501 }
ee12b079 86:a26f5f22631d 502 cs_sd = 1;
ee12b079 86:a26f5f22631d 503 spi.write(0xFF);
ee12b079 86:a26f5f22631d 504 return response[0];
ee12b079 86:a26f5f22631d 505 }
ee12b079 86:a26f5f22631d 506 }
ee12b079 86:a26f5f22631d 507 cs_sd = 1;
ee12b079 86:a26f5f22631d 508 spi.write(0xFF);
ee12b079 86:a26f5f22631d 509 return -1; // timeout
ee12b079 86:a26f5f22631d 510 }
ee12b079 86:a26f5f22631d 511
ee12b079 86:a26f5f22631d 512 uint64_t sd_sectors()
ee12b079 86:a26f5f22631d 513 {
ee12b079 86:a26f5f22631d 514 uint32_t c_size, c_size_mult, read_bl_len;
ee12b079 86:a26f5f22631d 515 uint32_t block_len, mult, blocknr, capacity;
ee12b079 86:a26f5f22631d 516 uint32_t hc_c_size;
ee12b079 86:a26f5f22631d 517 uint64_t blocks;
ee12b079 86:a26f5f22631d 518
ee12b079 86:a26f5f22631d 519 // CMD9, Response R2 (R1 byte + 16-byte block read)
ee12b079 86:a26f5f22631d 520 if (cmdx(9, 0) != 0) {
ee12b079 86:a26f5f22631d 521 debug("\rDidn't get a response from the disk\n");
ee12b079 86:a26f5f22631d 522 return 0;
ee12b079 86:a26f5f22631d 523 }
ee12b079 86:a26f5f22631d 524
ee12b079 86:a26f5f22631d 525 uint8_t cs_sdd[16];
ee12b079 86:a26f5f22631d 526 if (read(cs_sdd, 16) != 0) {
ee12b079 86:a26f5f22631d 527 debug("\rCouldn't read cs_sdd response from disk\n");
ee12b079 86:a26f5f22631d 528 return 0;
ee12b079 86:a26f5f22631d 529 }
ee12b079 86:a26f5f22631d 530
ee12b079 86:a26f5f22631d 531 // cs_sdd_structure : cs_sdd[127:126]
ee12b079 86:a26f5f22631d 532 // c_size : cs_sdd[73:62]
ee12b079 86:a26f5f22631d 533 // c_size_mult : cs_sdd[49:47]
ee12b079 86:a26f5f22631d 534 // read_bl_len : cs_sdd[83:80] - the *maximum* read block length
ee12b079 86:a26f5f22631d 535
ee12b079 86:a26f5f22631d 536 int cs_sdd_structure = ext_bits(cs_sdd, 127, 126);
ee12b079 86:a26f5f22631d 537
ee12b079 86:a26f5f22631d 538 switch (cs_sdd_structure) {
ee12b079 86:a26f5f22631d 539 case 0:
ee12b079 86:a26f5f22631d 540 cdv = 512;
ee12b079 86:a26f5f22631d 541 c_size = ext_bits(cs_sdd, 73, 62);
ee12b079 86:a26f5f22631d 542 c_size_mult = ext_bits(cs_sdd, 49, 47);
ee12b079 86:a26f5f22631d 543 read_bl_len = ext_bits(cs_sdd, 83, 80);
ee12b079 86:a26f5f22631d 544
ee12b079 86:a26f5f22631d 545 block_len = 1 << read_bl_len;
ee12b079 86:a26f5f22631d 546 mult = 1 << (c_size_mult + 2);
ee12b079 86:a26f5f22631d 547 blocknr = (c_size + 1) * mult;
ee12b079 86:a26f5f22631d 548 capacity = blocknr * block_len;
ee12b079 86:a26f5f22631d 549 blocks = capacity / 512;
ee12b079 86:a26f5f22631d 550 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 551 break;
ee12b079 86:a26f5f22631d 552
ee12b079 86:a26f5f22631d 553 case 1:
ee12b079 86:a26f5f22631d 554 cdv = 1;
ee12b079 86:a26f5f22631d 555 hc_c_size = ext_bits(cs_sdd, 63, 48);
ee12b079 86:a26f5f22631d 556 blocks = (hc_c_size+1)*1024;
ee12b079 86:a26f5f22631d 557 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 558 break;
ee12b079 86:a26f5f22631d 559
ee12b079 86:a26f5f22631d 560 default:
ee12b079 86:a26f5f22631d 561 debug("cs_sdD struct unsupported\r\n");
ee12b079 86:a26f5f22631d 562 return 0;
ee12b079 86:a26f5f22631d 563 };
ee12b079 86:a26f5f22631d 564 return blocks;
ee12b079 86:a26f5f22631d 565 }
ee12b079 86:a26f5f22631d 566
ee12b079 86:a26f5f22631d 567 int cmdx(int cmd, int arg)
ee12b079 86:a26f5f22631d 568 {
ee12b079 86:a26f5f22631d 569 cs_sd = 0;
ee12b079 86:a26f5f22631d 570
ee12b079 86:a26f5f22631d 571 // send a command
ee12b079 86:a26f5f22631d 572 spi.write(0x40 | cmd);
ee12b079 86:a26f5f22631d 573 spi.write(arg >> 24);
ee12b079 86:a26f5f22631d 574 spi.write(arg >> 16);
ee12b079 86:a26f5f22631d 575 spi.write(arg >> 8);
ee12b079 86:a26f5f22631d 576 spi.write(arg >> 0);
ee12b079 86:a26f5f22631d 577 spi.write(0x95);
ee12b079 86:a26f5f22631d 578
ee12b079 86:a26f5f22631d 579 // wait for the repsonse (response[7] == 0)
ee12b079 86:a26f5f22631d 580 for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
ee12b079 86:a26f5f22631d 581 int response = spi.write(0xFF);
ee12b079 86:a26f5f22631d 582 if (!(response & 0x80)) {
ee12b079 86:a26f5f22631d 583 return response;
ee12b079 86:a26f5f22631d 584 }
ee12b079 86:a26f5f22631d 585 }
ee12b079 86:a26f5f22631d 586 cs_sd = 1;
ee12b079 86:a26f5f22631d 587 spi.write(0xFF);
ee12b079 194:ab528911780d 588 return 1; // timeout
ee12b079 86:a26f5f22631d 589 }
ee12b079 86:a26f5f22631d 590
ee12b079 86:a26f5f22631d 591 static uint32_t ext_bits(unsigned char *data, int msb, int lsb)
ee12b079 86:a26f5f22631d 592 {
ee12b079 86:a26f5f22631d 593 uint32_t bits = 0;
ee12b079 86:a26f5f22631d 594 uint32_t size = 1 + msb - lsb;
ee12b079 86:a26f5f22631d 595 for (int i = 0; i < size; i++) {
ee12b079 86:a26f5f22631d 596 uint32_t position = lsb + i;
ee12b079 86:a26f5f22631d 597 uint32_t byte = 15 - (position >> 3);
ee12b079 86:a26f5f22631d 598 uint32_t bit = position & 0x7;
ee12b079 86:a26f5f22631d 599 uint32_t value = (data[byte] >> bit) & 1;
ee12b079 86:a26f5f22631d 600 bits |= value << i;
ee12b079 86:a26f5f22631d 601 }
ee12b079 86:a26f5f22631d 602 return bits;
ee12b079 86:a26f5f22631d 603 }
ee12b079 86:a26f5f22631d 604
ee12b079 86:a26f5f22631d 605 int disk_write(const uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 606
ee12b079 86:a26f5f22631d 607 {
ee12b079 86:a26f5f22631d 608 // set write address for single block (CMD24)
ee12b079 86:a26f5f22631d 609 if (cmd(24, block_number * cdv) != 0) {
ee12b079 86:a26f5f22631d 610 return 1;
ee12b079 86:a26f5f22631d 611 }
chaithanyarss 215:570251b23c7b 612
ee12b079 209:63e9c8f8b5d2 613 int r = write(buffer, 512);
chaithanyarss 215:570251b23c7b 614 if(r == 0 )
chaithanyarss 215:570251b23c7b 615 TIME_LATEST_SD_WR = FCTN_CDMS_RD_RTC() >> 7;
ee12b079 209:63e9c8f8b5d2 616 return r;
ee12b079 86:a26f5f22631d 617 }
ee12b079 86:a26f5f22631d 618
ee12b079 86:a26f5f22631d 619 int write(const uint8_t*buffer, uint32_t length)
ee12b079 86:a26f5f22631d 620 {
ee12b079 86:a26f5f22631d 621 cs_sd = 0;
ee12b079 86:a26f5f22631d 622
ee12b079 86:a26f5f22631d 623 // indicate start of block
ee12b079 86:a26f5f22631d 624 spi.write(0xFE);
ee12b079 86:a26f5f22631d 625
ee12b079 86:a26f5f22631d 626 // write the data
ee12b079 86:a26f5f22631d 627 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 628 spi.write(buffer[i]);
ee12b079 86:a26f5f22631d 629 }
ee12b079 86:a26f5f22631d 630
ee12b079 86:a26f5f22631d 631 // write the checksum
ee12b079 86:a26f5f22631d 632 spi.write(0xFF);
ee12b079 86:a26f5f22631d 633 spi.write(0xFF);
ee12b079 86:a26f5f22631d 634
ee12b079 86:a26f5f22631d 635 // check the response token
ee12b079 86:a26f5f22631d 636 if ((spi.write(0xFF) & 0x1F) != 0x05) {
ee12b079 86:a26f5f22631d 637 cs_sd = 1;
ee12b079 86:a26f5f22631d 638 spi.write(0xFF);
ee12b079 86:a26f5f22631d 639 return 1;
ee12b079 86:a26f5f22631d 640 }
ee12b079 86:a26f5f22631d 641
ee12b079 86:a26f5f22631d 642 // wait for write to finish
ee12b079 86:a26f5f22631d 643 while (spi.write(0xFF) == 0);
ee12b079 86:a26f5f22631d 644
ee12b079 86:a26f5f22631d 645 cs_sd = 1;
ee12b079 86:a26f5f22631d 646 spi.write(0xFF);
ee12b079 86:a26f5f22631d 647 return 0;
ee12b079 86:a26f5f22631d 648 }
ee12b079 86:a26f5f22631d 649
ee12b079 86:a26f5f22631d 650 int disk_read(uint8_t *buffer, uint64_t block_number)
ee12b079 86:a26f5f22631d 651 {
ee12b079 86:a26f5f22631d 652 // set read address for single block (CMD17)
ee12b079 86:a26f5f22631d 653 if (cmd(17, block_number * cdv) != 0) {
ee12b079 209:63e9c8f8b5d2 654 SD_RD_ERROR = 1;
ee12b079 86:a26f5f22631d 655 return 1;
ee12b079 86:a26f5f22631d 656 }
ee12b079 86:a26f5f22631d 657
ee12b079 86:a26f5f22631d 658 // receive the data
ee12b079 86:a26f5f22631d 659 read(buffer, 512);
chaithanyarss 215:570251b23c7b 660 TIME_LATEST_SD_RD = FCTN_CDMS_RD_RTC() >> 7;
ee12b079 86:a26f5f22631d 661 return 0;
ee12b079 86:a26f5f22631d 662 }
ee12b079 86:a26f5f22631d 663
ee12b079 86:a26f5f22631d 664 int read(uint8_t *buffer, uint32_t length)
ee12b079 86:a26f5f22631d 665 {
ee12b079 86:a26f5f22631d 666 cs_sd = 0;
ee12b079 86:a26f5f22631d 667
ee12b079 86:a26f5f22631d 668 // read until start byte (0xFF)
ee12b079 86:a26f5f22631d 669 while (spi.write(0xFF) != 0xFE);
ee12b079 86:a26f5f22631d 670
ee12b079 86:a26f5f22631d 671 // read data
ee12b079 86:a26f5f22631d 672 for (int i = 0; i < length; i++) {
ee12b079 86:a26f5f22631d 673 buffer[i] = spi.write(0xFF);
ee12b079 86:a26f5f22631d 674 }
ee12b079 86:a26f5f22631d 675 spi.write(0xFF); // checksum
ee12b079 86:a26f5f22631d 676 spi.write(0xFF);
ee12b079 86:a26f5f22631d 677
ee12b079 86:a26f5f22631d 678 cs_sd = 1;
ee12b079 86:a26f5f22631d 679 spi.write(0xFF);
ee12b079 86:a26f5f22631d 680 return 0;
ee12b079 86:a26f5f22631d 681 }
ee12b079 86:a26f5f22631d 682
ee12b079 86:a26f5f22631d 683 int disk_erase(int startBlock, int totalBlocks)
ee12b079 86:a26f5f22631d 684 {
ee12b079 86:a26f5f22631d 685 if(cmd(32, startBlock * cdv) != 0) {
ee12b079 86:a26f5f22631d 686 return 1;
ee12b079 86:a26f5f22631d 687 }
ee12b079 86:a26f5f22631d 688 if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) {
ee12b079 86:a26f5f22631d 689 return 1;
ee12b079 86:a26f5f22631d 690 }
ee12b079 86:a26f5f22631d 691 if (cmd(38,0) != 0) {
ee12b079 86:a26f5f22631d 692 return 1;
ee12b079 86:a26f5f22631d 693 }
chaithanyarss 215:570251b23c7b 694
ee12b079 86:a26f5f22631d 695 return 0; //normal return
ee12b079 209:63e9c8f8b5d2 696 }
ee12b079 209:63e9c8f8b5d2 697
ee12b079 209:63e9c8f8b5d2 698 int disk_read_statusbits(uint8_t *buffer)
ee12b079 209:63e9c8f8b5d2 699 {
ee12b079 209:63e9c8f8b5d2 700 if (cmd(17, 0) != 0) {
chaithanyarss 215:570251b23c7b 701 SD_RD_ERROR = 1;
ee12b079 209:63e9c8f8b5d2 702 return -1;
ee12b079 209:63e9c8f8b5d2 703 }
ee12b079 209:63e9c8f8b5d2 704
ee12b079 209:63e9c8f8b5d2 705 // receive the data
ee12b079 209:63e9c8f8b5d2 706 return read(buffer,64);
ee12b079 92:bce22b38c440 707 }