working version
Dependencies: mbed mbed-rtos SimpleDMA FreescaleIAP eeprom
Fork of CDMS_CODE_FM_28JAN2017 by
cdms_sd.h@214:6848a51af734, 2016-07-03 (annotated)
- Committer:
- chaithanyarss
- Date:
- Sun Jul 03 09:33:33 2016 +0000
- Revision:
- 214:6848a51af734
- Parent:
- 209:63e9c8f8b5d2
- Child:
- 223:7c802e1ccd30
Reset CDMS added;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
chaithanyarss | 214:6848a51af734 | 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 | 214:6848a51af734 | 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 | 214:6848a51af734 | 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 | { |
ee12b079 | 92:bce22b38c440 | 89 | uint32_t fsc; |
ee12b079 | 194:ab528911780d | 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 | 214:6848a51af734 | 93 | |
ee12b079 | 195:6a549c0e9287 | 94 | fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3]; |
ee12b079 | 195:6a549c0e9287 | 95 | start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7]; |
ee12b079 | 195:6a549c0e9287 | 96 | FSC_CURRENT[1] = fsc; |
ee12b079 | 195:6a549c0e9287 | 97 | FSC_LAST[1] = start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 98 | |
ee12b079 | 195:6a549c0e9287 | 99 | fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11]; |
ee12b079 | 195:6a549c0e9287 | 100 | start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15]; |
ee12b079 | 195:6a549c0e9287 | 101 | FSC_CURRENT[2] = fsc; |
ee12b079 | 195:6a549c0e9287 | 102 | FSC_LAST[2] = start_fsc; |
ee12b079 | 195:6a549c0e9287 | 103 | |
ee12b079 | 195:6a549c0e9287 | 104 | fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19]; |
ee12b079 | 195:6a549c0e9287 | 105 | start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23]; |
ee12b079 | 195:6a549c0e9287 | 106 | FSC_CURRENT[3] = fsc; |
ee12b079 | 195:6a549c0e9287 | 107 | FSC_LAST[3] = start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 108 | |
ee12b079 | 195:6a549c0e9287 | 109 | fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27]; |
ee12b079 | 195:6a549c0e9287 | 110 | start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31]; |
ee12b079 | 195:6a549c0e9287 | 111 | FSC_CURRENT[4] = fsc; |
ee12b079 | 195:6a549c0e9287 | 112 | FSC_LAST[4] = start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 113 | |
ee12b079 | 195:6a549c0e9287 | 114 | fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35]; |
ee12b079 | 195:6a549c0e9287 | 115 | start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39]; |
ee12b079 | 195:6a549c0e9287 | 116 | FSC_CURRENT[5] = fsc; |
ee12b079 | 195:6a549c0e9287 | 117 | FSC_LAST[5] = start_fsc; |
ee12b079 | 194:ab528911780d | 118 | } |
ee12b079 | 194:ab528911780d | 119 | |
ee12b079 | 194:ab528911780d | 120 | int INCREMENT_SD_LIB(uint8_t sid) |
ee12b079 | 194:ab528911780d | 121 | { |
ee12b079 | 194:ab528911780d | 122 | uint32_t fsc; |
ee12b079 | 194:ab528911780d | 123 | uint32_t start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 124 | int i; |
ee12b079 | 194:ab528911780d | 125 | uint8_t buffer[512]; |
ee12b079 | 209:63e9c8f8b5d2 | 126 | SD_MNG_SECT += SD_LIB_WRITES/(int)0xFFFF; |
ee12b079 | 209:63e9c8f8b5d2 | 127 | SD_LIB_WRITES = SD_LIB_WRITES%(int)0xFFFF; |
ee12b079 | 194:ab528911780d | 128 | disk_read(buffer,SD_MNG_SECT); |
chaithanyarss | 214:6848a51af734 | 129 | if(sid==0x01) { |
ee12b079 | 194:ab528911780d | 130 | fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3]; |
ee12b079 | 194:ab528911780d | 131 | start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7]; |
ee12b079 | 203:424308159a56 | 132 | fsc++; |
ee12b079 | 194:ab528911780d | 133 | buffer[0]=(uint8_t) (fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 134 | buffer[1]=(uint8_t) (fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 135 | buffer[2]=(uint8_t) (fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 136 | buffer[3]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 214:6848a51af734 | 137 | if(fsc > SD_SCP_LAST-SD_SCP_FIRST+1) { |
ee12b079 | 194:ab528911780d | 138 | start_fsc = start_fsc+1; |
ee12b079 | 194:ab528911780d | 139 | buffer[4]=(uint8_t) (start_fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 140 | buffer[5]=(uint8_t) (start_fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 141 | buffer[6]=(uint8_t) (start_fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 142 | buffer[7]=(uint8_t) (start_fsc & 0xFF); |
ee12b079 | 194:ab528911780d | 143 | } |
chaithanyarss | 214:6848a51af734 | 144 | |
ee12b079 | 203:424308159a56 | 145 | i = disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 214:6848a51af734 | 146 | if(i == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 147 | FSC_CURRENT[1] = fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 148 | FSC_LAST[1] = start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 149 | return i; |
chaithanyarss | 214:6848a51af734 | 150 | } |
ee12b079 | 86:a26f5f22631d | 151 | } |
chaithanyarss | 214:6848a51af734 | 152 | if(sid==0x02) { |
ee12b079 | 92:bce22b38c440 | 153 | fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11]; |
ee12b079 | 194:ab528911780d | 154 | start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15]; |
ee12b079 | 203:424308159a56 | 155 | fsc++; |
ee12b079 | 194:ab528911780d | 156 | buffer[8]=(uint8_t) (fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 157 | buffer[9]=(uint8_t) (fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 158 | buffer[10]=(uint8_t) (fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 159 | buffer[11]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 214:6848a51af734 | 160 | if(fsc > SD_SFF_AT_LAST-SD_SFF_AT_FIRST+1) { |
ee12b079 | 194:ab528911780d | 161 | start_fsc = start_fsc+1; |
ee12b079 | 194:ab528911780d | 162 | buffer[12]=(uint8_t) (start_fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 163 | buffer[13]=(uint8_t) (start_fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 164 | buffer[14]=(uint8_t) (start_fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 165 | buffer[15]=(uint8_t) (start_fsc & 0xFF); |
ee12b079 | 194:ab528911780d | 166 | } |
ee12b079 | 203:424308159a56 | 167 | i = disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 214:6848a51af734 | 168 | if(i == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 169 | FSC_CURRENT[2] = fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 170 | FSC_LAST[2] = start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 171 | return i; |
ee12b079 | 209:63e9c8f8b5d2 | 172 | } |
ee12b079 | 86:a26f5f22631d | 173 | } |
chaithanyarss | 214:6848a51af734 | 174 | if(sid==0x03) { |
ee12b079 | 92:bce22b38c440 | 175 | fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19]; |
ee12b079 | 194:ab528911780d | 176 | start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23]; |
ee12b079 | 203:424308159a56 | 177 | fsc++; |
ee12b079 | 194:ab528911780d | 178 | buffer[16]=(uint8_t) (fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 179 | buffer[17]=(uint8_t) (fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 180 | buffer[18]=(uint8_t) (fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 181 | buffer[19]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 214:6848a51af734 | 182 | if(fsc > SD_SFF_BT_LAST-SD_SFF_BT_FIRST+1) { |
ee12b079 | 194:ab528911780d | 183 | start_fsc = start_fsc+1; |
ee12b079 | 194:ab528911780d | 184 | buffer[20]=(uint8_t) (start_fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 185 | buffer[21]=(uint8_t) (start_fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 186 | buffer[22]=(uint8_t) (start_fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 187 | buffer[23]=(uint8_t) (start_fsc & 0xFF); |
ee12b079 | 194:ab528911780d | 188 | } |
ee12b079 | 203:424308159a56 | 189 | i = disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 214:6848a51af734 | 190 | if(i == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 191 | FSC_CURRENT[3] = fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 192 | FSC_LAST[3] = start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 193 | return i; |
ee12b079 | 209:63e9c8f8b5d2 | 194 | } |
ee12b079 | 86:a26f5f22631d | 195 | } |
chaithanyarss | 214:6848a51af734 | 196 | if(sid==0x04) { |
ee12b079 | 194:ab528911780d | 197 | fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27]; |
ee12b079 | 194:ab528911780d | 198 | start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31]; |
ee12b079 | 203:424308159a56 | 199 | fsc++; |
ee12b079 | 194:ab528911780d | 200 | buffer[24]=(uint8_t) (fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 201 | buffer[25]=(uint8_t) (fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 202 | buffer[26]=(uint8_t) (fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 203 | buffer[27]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 214:6848a51af734 | 204 | if(fsc > SD_HK_ARCH_LAST-SD_HK_ARCH_FIRST+1) { |
ee12b079 | 194:ab528911780d | 205 | start_fsc = start_fsc+1; |
ee12b079 | 194:ab528911780d | 206 | buffer[28]=(uint8_t) (start_fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 207 | buffer[29]=(uint8_t) (start_fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 208 | buffer[30]=(uint8_t) (start_fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 209 | buffer[31]=(uint8_t) (start_fsc & 0xFF); |
ee12b079 | 194:ab528911780d | 210 | } |
ee12b079 | 203:424308159a56 | 211 | i = disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 214:6848a51af734 | 212 | if(i == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 213 | FSC_CURRENT[4] = fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 214 | FSC_LAST[4] = start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 215 | return i; |
ee12b079 | 209:63e9c8f8b5d2 | 216 | } |
ee12b079 | 194:ab528911780d | 217 | } |
chaithanyarss | 214:6848a51af734 | 218 | if(sid==0x05) { |
ee12b079 | 194:ab528911780d | 219 | fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35]; |
ee12b079 | 194:ab528911780d | 220 | start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39]; |
ee12b079 | 203:424308159a56 | 221 | fsc++; |
ee12b079 | 194:ab528911780d | 222 | buffer[32]=(uint8_t) (fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 223 | buffer[33]=(uint8_t) (fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 224 | buffer[34]=(uint8_t) (fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 225 | buffer[35]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 214:6848a51af734 | 226 | if(fsc > LOG_LAST-LOG_FIRST+1) { |
ee12b079 | 194:ab528911780d | 227 | start_fsc = start_fsc+1; |
ee12b079 | 194:ab528911780d | 228 | buffer[36]=(uint8_t) (start_fsc>>24 & 0xFF); |
ee12b079 | 194:ab528911780d | 229 | buffer[37]=(uint8_t) (start_fsc>>16 & 0xFF); |
ee12b079 | 194:ab528911780d | 230 | buffer[38]=(uint8_t) (start_fsc>>8 & 0xFF); |
ee12b079 | 194:ab528911780d | 231 | buffer[39]=(uint8_t) (start_fsc & 0xFF); |
ee12b079 | 194:ab528911780d | 232 | } |
ee12b079 | 203:424308159a56 | 233 | i = disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 214:6848a51af734 | 234 | if(i == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 235 | FSC_CURRENT[5] = fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 236 | FSC_LAST[5] = start_fsc; |
ee12b079 | 209:63e9c8f8b5d2 | 237 | return i; |
ee12b079 | 209:63e9c8f8b5d2 | 238 | } |
ee12b079 | 194:ab528911780d | 239 | } |
ee12b079 | 194:ab528911780d | 240 | return -1; |
ee12b079 | 86:a26f5f22631d | 241 | } |
ee12b079 | 86:a26f5f22631d | 242 | |
ee12b079 | 86:a26f5f22631d | 243 | |
ee12b079 | 92:bce22b38c440 | 244 | int SD_WRITE(uint8_t* buffer,uint32_t fsc,uint8_t sid) |
ee12b079 | 86:a26f5f22631d | 245 | { |
ee12b079 | 86:a26f5f22631d | 246 | uint32_t block_number; |
ee12b079 | 194:ab528911780d | 247 | int result = 10; |
chaithanyarss | 214:6848a51af734 | 248 | if(sid==0x01) { |
ee12b079 | 194:ab528911780d | 249 | //block_number=SD_SCP_FIRST+(fsc%(SD_SCP_LAST-SD_SCP_FIRST+1))-1; |
ee12b079 | 92:bce22b38c440 | 250 | block_number=SD_SCP_FIRST+fsc; |
ee12b079 | 86:a26f5f22631d | 251 | result= disk_write(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 252 | if(result == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 253 | if(INCREMENT_SD_LIB(sid) == 0) |
ee12b079 | 209:63e9c8f8b5d2 | 254 | SD_LIB_WRITES++; |
ee12b079 | 209:63e9c8f8b5d2 | 255 | } |
ee12b079 | 194:ab528911780d | 256 | return result; |
ee12b079 | 194:ab528911780d | 257 | } |
chaithanyarss | 214:6848a51af734 | 258 | if(sid==0x02) { |
ee12b079 | 194:ab528911780d | 259 | //block_number= SD_SFF_AT_FIRST+(fsc%(SD_SFF_AT_LAST - SD_SFF_AT_FIRST+1))-1; |
ee12b079 | 194:ab528911780d | 260 | block_number= SD_SFF_AT_FIRST+fsc; |
ee12b079 | 194:ab528911780d | 261 | result= disk_write(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 262 | if(result == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 263 | if(INCREMENT_SD_LIB(sid) == 0) |
ee12b079 | 209:63e9c8f8b5d2 | 264 | SD_LIB_WRITES++; |
ee12b079 | 209:63e9c8f8b5d2 | 265 | } |
ee12b079 | 86:a26f5f22631d | 266 | return result; |
ee12b079 | 86:a26f5f22631d | 267 | } |
chaithanyarss | 214:6848a51af734 | 268 | if(sid==0x03) { |
ee12b079 | 194:ab528911780d | 269 | //block_number= SD_SFF_BT_FIRST +(fsc%(SD_SFF_BT_LAST - SD_SFF_BT_FIRST +1))-1; |
ee12b079 | 194:ab528911780d | 270 | block_number= SD_SFF_BT_FIRST +fsc; |
ee12b079 | 86:a26f5f22631d | 271 | result= disk_write(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 272 | if(result == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 273 | if(INCREMENT_SD_LIB(sid) == 0) |
ee12b079 | 209:63e9c8f8b5d2 | 274 | SD_LIB_WRITES++; |
ee12b079 | 209:63e9c8f8b5d2 | 275 | } |
ee12b079 | 86:a26f5f22631d | 276 | return result; |
ee12b079 | 86:a26f5f22631d | 277 | } |
chaithanyarss | 214:6848a51af734 | 278 | if(sid==0x04) { |
ee12b079 | 194:ab528911780d | 279 | //block_number=SD_HK_ARCH_FIRST +(fsc%(SD_HK_ARCH_LAST - SD_HK_ARCH_FIRST +1))-1; |
ee12b079 | 194:ab528911780d | 280 | block_number=SD_HK_ARCH_FIRST +fsc; |
ee12b079 | 86:a26f5f22631d | 281 | result= disk_write(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 282 | if(result == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 283 | if(INCREMENT_SD_LIB(sid) == 0) |
ee12b079 | 209:63e9c8f8b5d2 | 284 | SD_LIB_WRITES++; |
ee12b079 | 209:63e9c8f8b5d2 | 285 | } |
ee12b079 | 86:a26f5f22631d | 286 | return result; |
ee12b079 | 86:a26f5f22631d | 287 | } |
chaithanyarss | 214:6848a51af734 | 288 | if(sid==0x05) { |
ee12b079 | 194:ab528911780d | 289 | //block_number= LOG_FIRST +(fsc%(LOG_FIRST - LOG_FIRST +1))-1; |
ee12b079 | 194:ab528911780d | 290 | block_number= LOG_FIRST +fsc; |
ee12b079 | 86:a26f5f22631d | 291 | result= disk_write(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 292 | if(result == 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 293 | if(INCREMENT_SD_LIB(sid) == 0) |
ee12b079 | 209:63e9c8f8b5d2 | 294 | SD_LIB_WRITES++; |
ee12b079 | 209:63e9c8f8b5d2 | 295 | } |
ee12b079 | 86:a26f5f22631d | 296 | return result; |
ee12b079 | 86:a26f5f22631d | 297 | } |
ee12b079 | 86:a26f5f22631d | 298 | return 1; |
ee12b079 | 86:a26f5f22631d | 299 | } |
ee12b079 | 86:a26f5f22631d | 300 | |
ee12b079 | 195:6a549c0e9287 | 301 | uint8_t SD_READ(uint8_t* buffer,uint32_t fsc,uint8_t sid) |
ee12b079 | 86:a26f5f22631d | 302 | { |
ee12b079 | 195:6a549c0e9287 | 303 | FCTN_SD_MNGR(); |
ee12b079 | 209:63e9c8f8b5d2 | 304 | uint32_t block_number; |
ee12b079 | 209:63e9c8f8b5d2 | 305 | int result; |
ee12b079 | 195:6a549c0e9287 | 306 | if(SD_SW_EN_DS == 1) |
ee12b079 | 195:6a549c0e9287 | 307 | return 0x89; |
chaithanyarss | 214:6848a51af734 | 308 | if(sid==0x01) { |
chaithanyarss | 214:6848a51af734 | 309 | if(!(FSC_LAST[1]<=fsc && fsc<=FSC_CURRENT[1])) { |
ee12b079 | 195:6a549c0e9287 | 310 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 311 | } |
ee12b079 | 92:bce22b38c440 | 312 | block_number=SD_SCP_FIRST + fsc; |
ee12b079 | 86:a26f5f22631d | 313 | result= disk_read(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 314 | } else if(sid==0x02) { |
chaithanyarss | 214:6848a51af734 | 315 | if(!(FSC_LAST[2]<=fsc && fsc<=FSC_CURRENT[2])) { |
ee12b079 | 195:6a549c0e9287 | 316 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 317 | } |
ee12b079 | 86:a26f5f22631d | 318 | block_number=SD_SFF_AT_FIRST + fsc; |
ee12b079 | 86:a26f5f22631d | 319 | result= disk_read(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 320 | } else if(sid==0x03) { |
chaithanyarss | 214:6848a51af734 | 321 | if(!(FSC_LAST[3]<=fsc && fsc<=FSC_CURRENT[3])) { |
ee12b079 | 195:6a549c0e9287 | 322 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 323 | } |
ee12b079 | 86:a26f5f22631d | 324 | block_number=SD_SFF_BT_FIRST + fsc; |
ee12b079 | 86:a26f5f22631d | 325 | result= disk_read(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 326 | } else if(sid==0x04) { |
chaithanyarss | 214:6848a51af734 | 327 | if(!(FSC_LAST[4]<=fsc && fsc<=FSC_CURRENT[4])) { |
ee12b079 | 195:6a549c0e9287 | 328 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 329 | } |
ee12b079 | 86:a26f5f22631d | 330 | block_number=SD_HK_ARCH_FIRST + fsc; |
ee12b079 | 86:a26f5f22631d | 331 | result= disk_read(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 332 | } else if(sid==0x05) { |
chaithanyarss | 214:6848a51af734 | 333 | if(!(FSC_LAST[5]<=fsc && fsc<=FSC_CURRENT[5])) { |
ee12b079 | 195:6a549c0e9287 | 334 | return 0x86; |
ee12b079 | 195:6a549c0e9287 | 335 | } |
ee12b079 | 86:a26f5f22631d | 336 | block_number=LOG_FIRST +fsc; |
ee12b079 | 86:a26f5f22631d | 337 | result= disk_read(buffer,block_number); |
chaithanyarss | 214:6848a51af734 | 338 | } else { |
ee12b079 | 195:6a549c0e9287 | 339 | return 0x02; |
ee12b079 | 86:a26f5f22631d | 340 | } |
ee12b079 | 195:6a549c0e9287 | 341 | if(result == 0) |
ee12b079 | 195:6a549c0e9287 | 342 | return 0xA0; |
ee12b079 | 195:6a549c0e9287 | 343 | else |
ee12b079 | 195:6a549c0e9287 | 344 | return 0x88; |
ee12b079 | 86:a26f5f22631d | 345 | } |
ee12b079 | 86:a26f5f22631d | 346 | |
ee12b079 | 86:a26f5f22631d | 347 | |
ee12b079 | 86:a26f5f22631d | 348 | int initialise_card() |
ee12b079 | 86:a26f5f22631d | 349 | { |
ee12b079 | 86:a26f5f22631d | 350 | // Set to 100kHz for initialisation, and clock card with cs_sd = 1 |
chaithanyarss | 214:6848a51af734 | 351 | spi.frequency(100000); // changed on 31 12 2015 to 1 MHz |
ee12b079 | 86:a26f5f22631d | 352 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 353 | for (int i = 0; i < 16; i++) { |
ee12b079 | 86:a26f5f22631d | 354 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 355 | } |
ee12b079 | 194:ab528911780d | 356 | uint8_t R1_response = cmd(0,0); |
ee12b079 | 194:ab528911780d | 357 | gPC.printf("0x%02X",R1_response); |
ee12b079 | 86:a26f5f22631d | 358 | // send CMD0, should return with all zeros except IDLE STATE set (bit 0) |
ee12b079 | 194:ab528911780d | 359 | if (R1_response != R1_IDLE_STATE) { |
ee12b079 | 86:a26f5f22631d | 360 | debug("No disk, or could not put SD card in to spi idle state\r\n"); |
ee12b079 | 86:a26f5f22631d | 361 | return SDCARD_FAIL; |
chaithanyarss | 214:6848a51af734 | 362 | } else |
chaithanyarss | 214:6848a51af734 | 363 | gPC.puts("SD Card is in IDLE state\n\r"); |
ee12b079 | 86:a26f5f22631d | 364 | |
ee12b079 | 194:ab528911780d | 365 | // send CMD8 to determine whther it is ver 2.x |
ee12b079 | 86:a26f5f22631d | 366 | int r = cmd8(); |
ee12b079 | 86:a26f5f22631d | 367 | if (r == R1_IDLE_STATE) { |
ee12b079 | 194:ab528911780d | 368 | gPC.puts("Entering V2\r"); |
ee12b079 | 194:ab528911780d | 369 | int q = initialise_card_v2(); |
ee12b079 | 194:ab528911780d | 370 | return q; |
ee12b079 | 86:a26f5f22631d | 371 | |
ee12b079 | 86:a26f5f22631d | 372 | } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) { |
ee12b079 | 194:ab528911780d | 373 | gPC.puts("Entering V1"); |
ee12b079 | 86:a26f5f22631d | 374 | return initialise_card_v1(); |
ee12b079 | 86:a26f5f22631d | 375 | |
ee12b079 | 86:a26f5f22631d | 376 | } else { |
ee12b079 | 86:a26f5f22631d | 377 | debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n"); |
ee12b079 | 86:a26f5f22631d | 378 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 379 | } |
ee12b079 | 86:a26f5f22631d | 380 | } |
ee12b079 | 86:a26f5f22631d | 381 | |
ee12b079 | 86:a26f5f22631d | 382 | int initialise_card_v1() |
ee12b079 | 86:a26f5f22631d | 383 | { |
ee12b079 | 86:a26f5f22631d | 384 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 385 | cmd(55, 0); |
ee12b079 | 86:a26f5f22631d | 386 | if (cmd(41, 0) == 0) { |
ee12b079 | 96:4ca92f9775e0 | 387 | gPC.puts("\rv1 initialization successfull\r\n"); |
ee12b079 | 86:a26f5f22631d | 388 | cdv = 512; |
ee12b079 | 86:a26f5f22631d | 389 | debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r"); |
ee12b079 | 86:a26f5f22631d | 390 | |
ee12b079 | 86:a26f5f22631d | 391 | return SDCARD_V1; |
ee12b079 | 86:a26f5f22631d | 392 | } |
ee12b079 | 86:a26f5f22631d | 393 | } |
ee12b079 | 86:a26f5f22631d | 394 | |
ee12b079 | 86:a26f5f22631d | 395 | debug("\rTimeout waiting for v1.x card\r\n"); |
ee12b079 | 86:a26f5f22631d | 396 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 397 | } |
ee12b079 | 86:a26f5f22631d | 398 | |
ee12b079 | 86:a26f5f22631d | 399 | |
ee12b079 | 86:a26f5f22631d | 400 | int initialise_card_v2() |
ee12b079 | 86:a26f5f22631d | 401 | { |
ee12b079 | 86:a26f5f22631d | 402 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 403 | wait_ms(50); |
ee12b079 | 86:a26f5f22631d | 404 | cmd58(); |
ee12b079 | 86:a26f5f22631d | 405 | cmd(55, 0); |
ee12b079 | 86:a26f5f22631d | 406 | if (cmd(41, 0x40000000) == 0) { |
ee12b079 | 194:ab528911780d | 407 | if (DEBUG) |
ee12b079 | 194:ab528911780d | 408 | gPC.puts("\rv2 initialization successfull\r\n"); |
ee12b079 | 86:a26f5f22631d | 409 | cmd58(); |
ee12b079 | 86:a26f5f22631d | 410 | debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r"); |
ee12b079 | 86:a26f5f22631d | 411 | cdv = 1; |
ee12b079 | 86:a26f5f22631d | 412 | return SDCARD_V2; |
ee12b079 | 86:a26f5f22631d | 413 | } |
ee12b079 | 86:a26f5f22631d | 414 | } |
ee12b079 | 86:a26f5f22631d | 415 | |
ee12b079 | 86:a26f5f22631d | 416 | debug("\rTimeout waiting for v2.x card\r\n"); |
ee12b079 | 86:a26f5f22631d | 417 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 418 | } |
ee12b079 | 86:a26f5f22631d | 419 | |
ee12b079 | 86:a26f5f22631d | 420 | int cmd(int cmd, int arg) |
ee12b079 | 86:a26f5f22631d | 421 | { |
ee12b079 | 86:a26f5f22631d | 422 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 423 | |
ee12b079 | 86:a26f5f22631d | 424 | // send a command |
ee12b079 | 86:a26f5f22631d | 425 | spi.write(0x40 | cmd); |
ee12b079 | 86:a26f5f22631d | 426 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 427 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 428 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 429 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 430 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 431 | |
ee12b079 | 86:a26f5f22631d | 432 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 433 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 434 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 435 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 436 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 437 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 438 | return response; |
ee12b079 | 86:a26f5f22631d | 439 | } |
ee12b079 | 86:a26f5f22631d | 440 | } |
ee12b079 | 86:a26f5f22631d | 441 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 442 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 443 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 444 | } |
ee12b079 | 86:a26f5f22631d | 445 | |
ee12b079 | 86:a26f5f22631d | 446 | |
ee12b079 | 86:a26f5f22631d | 447 | int cmd58() |
ee12b079 | 86:a26f5f22631d | 448 | { |
ee12b079 | 86:a26f5f22631d | 449 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 450 | int arg = 0; |
ee12b079 | 86:a26f5f22631d | 451 | |
ee12b079 | 86:a26f5f22631d | 452 | // send a command |
ee12b079 | 86:a26f5f22631d | 453 | spi.write(0x40 | 58); |
ee12b079 | 86:a26f5f22631d | 454 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 455 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 456 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 457 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 458 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 459 | |
ee12b079 | 86:a26f5f22631d | 460 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 461 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 462 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 463 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 464 | int ocr = spi.write(0xFF) << 24; |
ee12b079 | 86:a26f5f22631d | 465 | ocr |= spi.write(0xFF) << 16; |
ee12b079 | 86:a26f5f22631d | 466 | ocr |= spi.write(0xFF) << 8; |
ee12b079 | 86:a26f5f22631d | 467 | ocr |= spi.write(0xFF) << 0; |
ee12b079 | 86:a26f5f22631d | 468 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 469 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 470 | return response; |
ee12b079 | 86:a26f5f22631d | 471 | } |
ee12b079 | 86:a26f5f22631d | 472 | } |
ee12b079 | 86:a26f5f22631d | 473 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 474 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 475 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 476 | } |
ee12b079 | 86:a26f5f22631d | 477 | |
ee12b079 | 86:a26f5f22631d | 478 | |
ee12b079 | 86:a26f5f22631d | 479 | int cmd8() |
ee12b079 | 86:a26f5f22631d | 480 | { |
ee12b079 | 86:a26f5f22631d | 481 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 482 | |
ee12b079 | 86:a26f5f22631d | 483 | // send a command |
ee12b079 | 86:a26f5f22631d | 484 | spi.write(0x40 | 8); // CMD8 |
ee12b079 | 86:a26f5f22631d | 485 | spi.write(0x00); // reserved |
ee12b079 | 86:a26f5f22631d | 486 | spi.write(0x00); // reserved |
ee12b079 | 86:a26f5f22631d | 487 | spi.write(0x01); // 3.3v |
ee12b079 | 86:a26f5f22631d | 488 | spi.write(0xAA); // check pattern |
ee12b079 | 86:a26f5f22631d | 489 | spi.write(0x87); // crc |
ee12b079 | 86:a26f5f22631d | 490 | |
ee12b079 | 86:a26f5f22631d | 491 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 492 | for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) { |
ee12b079 | 86:a26f5f22631d | 493 | char response[5]; |
ee12b079 | 86:a26f5f22631d | 494 | response[0] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 495 | if (!(response[0] & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 496 | for (int j = 1; j < 5; j++) { |
ee12b079 | 86:a26f5f22631d | 497 | response[i] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 498 | } |
ee12b079 | 86:a26f5f22631d | 499 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 500 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 501 | return response[0]; |
ee12b079 | 86:a26f5f22631d | 502 | } |
ee12b079 | 86:a26f5f22631d | 503 | } |
ee12b079 | 86:a26f5f22631d | 504 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 505 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 506 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 507 | } |
ee12b079 | 86:a26f5f22631d | 508 | |
ee12b079 | 86:a26f5f22631d | 509 | uint64_t sd_sectors() |
ee12b079 | 86:a26f5f22631d | 510 | { |
ee12b079 | 86:a26f5f22631d | 511 | uint32_t c_size, c_size_mult, read_bl_len; |
ee12b079 | 86:a26f5f22631d | 512 | uint32_t block_len, mult, blocknr, capacity; |
ee12b079 | 86:a26f5f22631d | 513 | uint32_t hc_c_size; |
ee12b079 | 86:a26f5f22631d | 514 | uint64_t blocks; |
ee12b079 | 86:a26f5f22631d | 515 | |
ee12b079 | 86:a26f5f22631d | 516 | // CMD9, Response R2 (R1 byte + 16-byte block read) |
ee12b079 | 86:a26f5f22631d | 517 | if (cmdx(9, 0) != 0) { |
ee12b079 | 86:a26f5f22631d | 518 | debug("\rDidn't get a response from the disk\n"); |
ee12b079 | 86:a26f5f22631d | 519 | return 0; |
ee12b079 | 86:a26f5f22631d | 520 | } |
ee12b079 | 86:a26f5f22631d | 521 | |
ee12b079 | 86:a26f5f22631d | 522 | uint8_t cs_sdd[16]; |
ee12b079 | 86:a26f5f22631d | 523 | if (read(cs_sdd, 16) != 0) { |
ee12b079 | 86:a26f5f22631d | 524 | debug("\rCouldn't read cs_sdd response from disk\n"); |
ee12b079 | 86:a26f5f22631d | 525 | return 0; |
ee12b079 | 86:a26f5f22631d | 526 | } |
ee12b079 | 86:a26f5f22631d | 527 | |
ee12b079 | 86:a26f5f22631d | 528 | // cs_sdd_structure : cs_sdd[127:126] |
ee12b079 | 86:a26f5f22631d | 529 | // c_size : cs_sdd[73:62] |
ee12b079 | 86:a26f5f22631d | 530 | // c_size_mult : cs_sdd[49:47] |
ee12b079 | 86:a26f5f22631d | 531 | // read_bl_len : cs_sdd[83:80] - the *maximum* read block length |
ee12b079 | 86:a26f5f22631d | 532 | |
ee12b079 | 86:a26f5f22631d | 533 | int cs_sdd_structure = ext_bits(cs_sdd, 127, 126); |
ee12b079 | 86:a26f5f22631d | 534 | |
ee12b079 | 86:a26f5f22631d | 535 | switch (cs_sdd_structure) { |
ee12b079 | 86:a26f5f22631d | 536 | case 0: |
ee12b079 | 86:a26f5f22631d | 537 | cdv = 512; |
ee12b079 | 86:a26f5f22631d | 538 | c_size = ext_bits(cs_sdd, 73, 62); |
ee12b079 | 86:a26f5f22631d | 539 | c_size_mult = ext_bits(cs_sdd, 49, 47); |
ee12b079 | 86:a26f5f22631d | 540 | read_bl_len = ext_bits(cs_sdd, 83, 80); |
ee12b079 | 86:a26f5f22631d | 541 | |
ee12b079 | 86:a26f5f22631d | 542 | block_len = 1 << read_bl_len; |
ee12b079 | 86:a26f5f22631d | 543 | mult = 1 << (c_size_mult + 2); |
ee12b079 | 86:a26f5f22631d | 544 | blocknr = (c_size + 1) * mult; |
ee12b079 | 86:a26f5f22631d | 545 | capacity = blocknr * block_len; |
ee12b079 | 86:a26f5f22631d | 546 | blocks = capacity / 512; |
ee12b079 | 86:a26f5f22631d | 547 | 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 | 548 | break; |
ee12b079 | 86:a26f5f22631d | 549 | |
ee12b079 | 86:a26f5f22631d | 550 | case 1: |
ee12b079 | 86:a26f5f22631d | 551 | cdv = 1; |
ee12b079 | 86:a26f5f22631d | 552 | hc_c_size = ext_bits(cs_sdd, 63, 48); |
ee12b079 | 86:a26f5f22631d | 553 | blocks = (hc_c_size+1)*1024; |
ee12b079 | 86:a26f5f22631d | 554 | 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 | 555 | break; |
ee12b079 | 86:a26f5f22631d | 556 | |
ee12b079 | 86:a26f5f22631d | 557 | default: |
ee12b079 | 86:a26f5f22631d | 558 | debug("cs_sdD struct unsupported\r\n"); |
ee12b079 | 86:a26f5f22631d | 559 | return 0; |
ee12b079 | 86:a26f5f22631d | 560 | }; |
ee12b079 | 86:a26f5f22631d | 561 | return blocks; |
ee12b079 | 86:a26f5f22631d | 562 | } |
ee12b079 | 86:a26f5f22631d | 563 | |
ee12b079 | 86:a26f5f22631d | 564 | int cmdx(int cmd, int arg) |
ee12b079 | 86:a26f5f22631d | 565 | { |
ee12b079 | 86:a26f5f22631d | 566 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 567 | |
ee12b079 | 86:a26f5f22631d | 568 | // send a command |
ee12b079 | 86:a26f5f22631d | 569 | spi.write(0x40 | cmd); |
ee12b079 | 86:a26f5f22631d | 570 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 571 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 572 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 573 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 574 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 575 | |
ee12b079 | 86:a26f5f22631d | 576 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 577 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 578 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 579 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 580 | return response; |
ee12b079 | 86:a26f5f22631d | 581 | } |
ee12b079 | 86:a26f5f22631d | 582 | } |
ee12b079 | 86:a26f5f22631d | 583 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 584 | spi.write(0xFF); |
ee12b079 | 194:ab528911780d | 585 | return 1; // timeout |
ee12b079 | 86:a26f5f22631d | 586 | } |
ee12b079 | 86:a26f5f22631d | 587 | |
ee12b079 | 86:a26f5f22631d | 588 | static uint32_t ext_bits(unsigned char *data, int msb, int lsb) |
ee12b079 | 86:a26f5f22631d | 589 | { |
ee12b079 | 86:a26f5f22631d | 590 | uint32_t bits = 0; |
ee12b079 | 86:a26f5f22631d | 591 | uint32_t size = 1 + msb - lsb; |
ee12b079 | 86:a26f5f22631d | 592 | for (int i = 0; i < size; i++) { |
ee12b079 | 86:a26f5f22631d | 593 | uint32_t position = lsb + i; |
ee12b079 | 86:a26f5f22631d | 594 | uint32_t byte = 15 - (position >> 3); |
ee12b079 | 86:a26f5f22631d | 595 | uint32_t bit = position & 0x7; |
ee12b079 | 86:a26f5f22631d | 596 | uint32_t value = (data[byte] >> bit) & 1; |
ee12b079 | 86:a26f5f22631d | 597 | bits |= value << i; |
ee12b079 | 86:a26f5f22631d | 598 | } |
ee12b079 | 86:a26f5f22631d | 599 | return bits; |
ee12b079 | 86:a26f5f22631d | 600 | } |
ee12b079 | 86:a26f5f22631d | 601 | |
ee12b079 | 86:a26f5f22631d | 602 | int disk_write(const uint8_t *buffer, uint64_t block_number) |
ee12b079 | 86:a26f5f22631d | 603 | |
ee12b079 | 86:a26f5f22631d | 604 | { |
ee12b079 | 86:a26f5f22631d | 605 | // set write address for single block (CMD24) |
ee12b079 | 86:a26f5f22631d | 606 | if (cmd(24, block_number * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 607 | return 1; |
ee12b079 | 86:a26f5f22631d | 608 | } |
chaithanyarss | 214:6848a51af734 | 609 | |
ee12b079 | 209:63e9c8f8b5d2 | 610 | int r = write(buffer, 512); |
chaithanyarss | 214:6848a51af734 | 611 | if(r == 0 ) |
chaithanyarss | 214:6848a51af734 | 612 | TIME_LATEST_SD_WR = FCTN_CDMS_RD_RTC() >> 7; |
ee12b079 | 209:63e9c8f8b5d2 | 613 | return r; |
ee12b079 | 86:a26f5f22631d | 614 | } |
ee12b079 | 86:a26f5f22631d | 615 | |
ee12b079 | 86:a26f5f22631d | 616 | int write(const uint8_t*buffer, uint32_t length) |
ee12b079 | 86:a26f5f22631d | 617 | { |
ee12b079 | 86:a26f5f22631d | 618 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 619 | |
ee12b079 | 86:a26f5f22631d | 620 | // indicate start of block |
ee12b079 | 86:a26f5f22631d | 621 | spi.write(0xFE); |
ee12b079 | 86:a26f5f22631d | 622 | |
ee12b079 | 86:a26f5f22631d | 623 | // write the data |
ee12b079 | 86:a26f5f22631d | 624 | for (int i = 0; i < length; i++) { |
ee12b079 | 86:a26f5f22631d | 625 | spi.write(buffer[i]); |
ee12b079 | 86:a26f5f22631d | 626 | } |
ee12b079 | 86:a26f5f22631d | 627 | |
ee12b079 | 86:a26f5f22631d | 628 | // write the checksum |
ee12b079 | 86:a26f5f22631d | 629 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 630 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 631 | |
ee12b079 | 86:a26f5f22631d | 632 | // check the response token |
ee12b079 | 86:a26f5f22631d | 633 | if ((spi.write(0xFF) & 0x1F) != 0x05) { |
ee12b079 | 86:a26f5f22631d | 634 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 635 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 636 | return 1; |
ee12b079 | 86:a26f5f22631d | 637 | } |
ee12b079 | 86:a26f5f22631d | 638 | |
ee12b079 | 86:a26f5f22631d | 639 | // wait for write to finish |
ee12b079 | 86:a26f5f22631d | 640 | while (spi.write(0xFF) == 0); |
ee12b079 | 86:a26f5f22631d | 641 | |
ee12b079 | 86:a26f5f22631d | 642 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 643 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 644 | return 0; |
ee12b079 | 86:a26f5f22631d | 645 | } |
ee12b079 | 86:a26f5f22631d | 646 | |
ee12b079 | 86:a26f5f22631d | 647 | int disk_read(uint8_t *buffer, uint64_t block_number) |
ee12b079 | 86:a26f5f22631d | 648 | { |
ee12b079 | 86:a26f5f22631d | 649 | // set read address for single block (CMD17) |
ee12b079 | 86:a26f5f22631d | 650 | if (cmd(17, block_number * cdv) != 0) { |
ee12b079 | 209:63e9c8f8b5d2 | 651 | SD_RD_ERROR = 1; |
ee12b079 | 86:a26f5f22631d | 652 | return 1; |
ee12b079 | 86:a26f5f22631d | 653 | } |
ee12b079 | 86:a26f5f22631d | 654 | |
ee12b079 | 86:a26f5f22631d | 655 | // receive the data |
ee12b079 | 86:a26f5f22631d | 656 | read(buffer, 512); |
chaithanyarss | 214:6848a51af734 | 657 | TIME_LATEST_SD_RD = FCTN_CDMS_RD_RTC() >> 7; |
ee12b079 | 86:a26f5f22631d | 658 | return 0; |
ee12b079 | 86:a26f5f22631d | 659 | } |
ee12b079 | 86:a26f5f22631d | 660 | |
ee12b079 | 86:a26f5f22631d | 661 | int read(uint8_t *buffer, uint32_t length) |
ee12b079 | 86:a26f5f22631d | 662 | { |
ee12b079 | 86:a26f5f22631d | 663 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 664 | |
ee12b079 | 86:a26f5f22631d | 665 | // read until start byte (0xFF) |
ee12b079 | 86:a26f5f22631d | 666 | while (spi.write(0xFF) != 0xFE); |
ee12b079 | 86:a26f5f22631d | 667 | |
ee12b079 | 86:a26f5f22631d | 668 | // read data |
ee12b079 | 86:a26f5f22631d | 669 | for (int i = 0; i < length; i++) { |
ee12b079 | 86:a26f5f22631d | 670 | buffer[i] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 671 | } |
ee12b079 | 86:a26f5f22631d | 672 | spi.write(0xFF); // checksum |
ee12b079 | 86:a26f5f22631d | 673 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 674 | |
ee12b079 | 86:a26f5f22631d | 675 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 676 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 677 | return 0; |
ee12b079 | 86:a26f5f22631d | 678 | } |
ee12b079 | 86:a26f5f22631d | 679 | |
ee12b079 | 86:a26f5f22631d | 680 | int disk_erase(int startBlock, int totalBlocks) |
ee12b079 | 86:a26f5f22631d | 681 | { |
ee12b079 | 86:a26f5f22631d | 682 | if(cmd(32, startBlock * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 683 | return 1; |
ee12b079 | 86:a26f5f22631d | 684 | } |
ee12b079 | 86:a26f5f22631d | 685 | if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 686 | return 1; |
ee12b079 | 86:a26f5f22631d | 687 | } |
ee12b079 | 86:a26f5f22631d | 688 | if (cmd(38,0) != 0) { |
ee12b079 | 86:a26f5f22631d | 689 | return 1; |
ee12b079 | 86:a26f5f22631d | 690 | } |
chaithanyarss | 214:6848a51af734 | 691 | |
ee12b079 | 86:a26f5f22631d | 692 | return 0; //normal return |
ee12b079 | 209:63e9c8f8b5d2 | 693 | } |
ee12b079 | 209:63e9c8f8b5d2 | 694 | |
ee12b079 | 209:63e9c8f8b5d2 | 695 | int disk_read_statusbits(uint8_t *buffer) |
ee12b079 | 209:63e9c8f8b5d2 | 696 | { |
ee12b079 | 209:63e9c8f8b5d2 | 697 | if (cmd(17, 0) != 0) { |
chaithanyarss | 214:6848a51af734 | 698 | SD_RD_ERROR = 1; |
ee12b079 | 209:63e9c8f8b5d2 | 699 | return -1; |
ee12b079 | 209:63e9c8f8b5d2 | 700 | } |
ee12b079 | 209:63e9c8f8b5d2 | 701 | |
ee12b079 | 209:63e9c8f8b5d2 | 702 | // receive the data |
ee12b079 | 209:63e9c8f8b5d2 | 703 | return read(buffer,64); |
ee12b079 | 92:bce22b38c440 | 704 | } |