To fix the hang problem
Dependencies: FreescaleIAP SimpleDMA mbed-rtos mbed
Fork of CDMS_CODE by
cdms_sd.h@187:2c7263530c57, 2016-06-29 (annotated)
- Committer:
- chaithanyarss
- Date:
- Wed Jun 29 13:59:21 2016 +0000
- Revision:
- 187:2c7263530c57
- Parent:
- 134:4694fc291ce1
- Child:
- 188:5f75962ae7ea
SD card finalized code
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ee12b079 | 86:a26f5f22631d | 1 | |
ee12b079 | 86:a26f5f22631d | 2 | |
ee12b079 | 86:a26f5f22631d | 3 | |
ee12b079 | 86:a26f5f22631d | 4 | //SPI spi(PTE1, PTE3, PTE2); // MOSI,MISO, CLOCK microcontroller(in order) |
ee12b079 | 86:a26f5f22631d | 5 | //DigitalOut cs_sd(PTE22); |
ee12b079 | 86:a26f5f22631d | 6 | |
ee12b079 | 86:a26f5f22631d | 7 | //Serial sd1(USBTX,USBRX); |
ee12b079 | 86:a26f5f22631d | 8 | |
ee12b079 | 86:a26f5f22631d | 9 | |
ee12b079 | 86:a26f5f22631d | 10 | #define SD_COMMAND_TIMEOUT 5000 |
ee12b079 | 86:a26f5f22631d | 11 | |
ee12b079 | 86:a26f5f22631d | 12 | #define SD_DBG 0 |
ee12b079 | 86:a26f5f22631d | 13 | |
ee12b079 | 86:a26f5f22631d | 14 | #define R1_IDLE_STATE (1 << 0) |
ee12b079 | 86:a26f5f22631d | 15 | #define R1_ERASE_RESET (1 << 1) |
ee12b079 | 86:a26f5f22631d | 16 | #define R1_ILLEGAL_COMMAND (1 << 2) |
ee12b079 | 86:a26f5f22631d | 17 | #define R1_COM_CRC_ERROR (1 << 3) |
ee12b079 | 86:a26f5f22631d | 18 | #define R1_ERASE_SEQUENCE_ERROR (1 << 4) |
ee12b079 | 86:a26f5f22631d | 19 | #define R1_ADDRESS_ERROR (1 << 5) |
ee12b079 | 86:a26f5f22631d | 20 | #define R1_PARAMETER_ERROR (1 << 6) |
ee12b079 | 86:a26f5f22631d | 21 | |
ee12b079 | 86:a26f5f22631d | 22 | |
ee12b079 | 86:a26f5f22631d | 23 | |
ee12b079 | 86:a26f5f22631d | 24 | #define SD_MAX_CYCLES 10000 |
ee12b079 | 86:a26f5f22631d | 25 | |
chaithanyarss | 187:2c7263530c57 | 26 | uint32_t SD_SCP_FIRST=1001; |
chaithanyarss | 187:2c7263530c57 | 27 | uint32_t SD_SCP_LAST=2000; |
chaithanyarss | 187:2c7263530c57 | 28 | uint32_t SD_SFF_AT_FIRST=2001; |
chaithanyarss | 187:2c7263530c57 | 29 | uint32_t SD_SFF_AT_LAST = 3000; |
chaithanyarss | 187:2c7263530c57 | 30 | uint32_t SD_SFF_BT_FIRST =3001; |
chaithanyarss | 187:2c7263530c57 | 31 | uint32_t SD_SFF_BT_LAST=4000; |
chaithanyarss | 187:2c7263530c57 | 32 | uint32_t SD_HK_ARCH_FIRST=4001; |
chaithanyarss | 187:2c7263530c57 | 33 | uint32_t SD_HK_ARCH_LAST= 5000; |
chaithanyarss | 187:2c7263530c57 | 34 | uint32_t LOG_FIRST =5001; |
chaithanyarss | 187:2c7263530c57 | 35 | uint32_t LOG_LAST=6000; |
chaithanyarss | 187:2c7263530c57 | 36 | uint32_t SD_MNG_SECT=7000; |
ee12b079 | 86:a26f5f22631d | 37 | |
chaithanyarss | 187:2c7263530c57 | 38 | extern uint8_t SD_INIT_FLAGS; |
ee12b079 | 86:a26f5f22631d | 39 | |
ee12b079 | 86:a26f5f22631d | 40 | int initialise_card(); |
ee12b079 | 86:a26f5f22631d | 41 | int initialise_card_v1(); |
ee12b079 | 86:a26f5f22631d | 42 | int initialise_card_v2(); |
ee12b079 | 86:a26f5f22631d | 43 | int disk_write(const uint8_t *, uint64_t); |
ee12b079 | 86:a26f5f22631d | 44 | int disk_read(uint8_t *, uint64_t); |
ee12b079 | 86:a26f5f22631d | 45 | int disk_erase(int,int); |
ee12b079 | 86:a26f5f22631d | 46 | |
chaithanyarss | 187:2c7263530c57 | 47 | uint32_t FCTN_SD_MNG(uint8_t); |
chaithanyarss | 187:2c7263530c57 | 48 | int INCREMENT_SD_LIB(uint8_t); |
ee12b079 | 86:a26f5f22631d | 49 | |
ee12b079 | 86:a26f5f22631d | 50 | |
ee12b079 | 86:a26f5f22631d | 51 | int cmd(int, int); |
ee12b079 | 86:a26f5f22631d | 52 | int cmd58(); |
ee12b079 | 86:a26f5f22631d | 53 | int cmdx(int, int); |
ee12b079 | 86:a26f5f22631d | 54 | int cmd8(); |
ee12b079 | 86:a26f5f22631d | 55 | int read(uint8_t*, uint32_t ); |
ee12b079 | 86:a26f5f22631d | 56 | int write(const uint8_t*, uint32_t ); |
ee12b079 | 86:a26f5f22631d | 57 | static uint32_t ext_bits(unsigned char *, int , int ); |
ee12b079 | 92:bce22b38c440 | 58 | int SD_WRITE(uint8_t*,uint32_t,uint8_t); |
chaithanyarss | 187:2c7263530c57 | 59 | int FCTN_CDMS_SD_INIT(); |
ee12b079 | 92:bce22b38c440 | 60 | int SD_READ(uint8_t*,uint32_t,uint8_t); |
ee12b079 | 86:a26f5f22631d | 61 | #define SDCARD_FAIL 0 |
ee12b079 | 86:a26f5f22631d | 62 | #define SDCARD_V1 1 |
ee12b079 | 86:a26f5f22631d | 63 | #define SDCARD_V2 2 |
ee12b079 | 86:a26f5f22631d | 64 | #define SDCARD_V2HC 3 |
ee12b079 | 86:a26f5f22631d | 65 | |
ee12b079 | 86:a26f5f22631d | 66 | |
ee12b079 | 86:a26f5f22631d | 67 | int cdv; |
ee12b079 | 86:a26f5f22631d | 68 | uint64_t sd_sectors(); |
ee12b079 | 86:a26f5f22631d | 69 | uint64_t sectors; |
ee12b079 | 86:a26f5f22631d | 70 | |
chaithanyarss | 187:2c7263530c57 | 71 | int FCTN_CDMS_SD_INIT() |
chaithanyarss | 187:2c7263530c57 | 72 | { |
chaithanyarss | 187:2c7263530c57 | 73 | int i = initialise_card(); |
chaithanyarss | 187:2c7263530c57 | 74 | debug_if(SD_DBG, "init card = %d\n", i); |
chaithanyarss | 187:2c7263530c57 | 75 | sectors = sd_sectors(); |
chaithanyarss | 187:2c7263530c57 | 76 | |
chaithanyarss | 187:2c7263530c57 | 77 | // Set block length to 512 (CMD16) |
chaithanyarss | 187:2c7263530c57 | 78 | if (cmd(16, 512) != 0) { |
chaithanyarss | 187:2c7263530c57 | 79 | debug("\rSet 512-byte block timed out\r\n"); |
chaithanyarss | 187:2c7263530c57 | 80 | return 1; |
chaithanyarss | 187:2c7263530c57 | 81 | } else { |
chaithanyarss | 187:2c7263530c57 | 82 | //printf("\rDisk initialization successfull\r\n"); |
chaithanyarss | 187:2c7263530c57 | 83 | } |
chaithanyarss | 187:2c7263530c57 | 84 | |
chaithanyarss | 187:2c7263530c57 | 85 | spi.frequency(1000000); // Set to 1MHz for data transfer |
chaithanyarss | 187:2c7263530c57 | 86 | return 0; |
ee12b079 | 86:a26f5f22631d | 87 | } |
ee12b079 | 86:a26f5f22631d | 88 | |
ee12b079 | 86:a26f5f22631d | 89 | |
ee12b079 | 86:a26f5f22631d | 90 | |
ee12b079 | 92:bce22b38c440 | 91 | uint32_t FCTN_SD_MNGR(uint8_t sid) |
ee12b079 | 86:a26f5f22631d | 92 | { |
ee12b079 | 92:bce22b38c440 | 93 | uint32_t fsc; |
chaithanyarss | 187:2c7263530c57 | 94 | uint32_t start_fsc; |
ee12b079 | 92:bce22b38c440 | 95 | uint8_t buffer[512]; |
ee12b079 | 92:bce22b38c440 | 96 | int b=disk_read(buffer, SD_MNG_SECT); |
chaithanyarss | 187:2c7263530c57 | 97 | if(sid==0x01) |
ee12b079 | 86:a26f5f22631d | 98 | { |
ee12b079 | 92:bce22b38c440 | 99 | fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3]; |
chaithanyarss | 187:2c7263530c57 | 100 | start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7]; |
chaithanyarss | 187:2c7263530c57 | 101 | FSC_CURRENT[1] = fsc; |
chaithanyarss | 187:2c7263530c57 | 102 | FSC_LAST[1] = start_fsc; |
chaithanyarss | 187:2c7263530c57 | 103 | } |
chaithanyarss | 187:2c7263530c57 | 104 | if(sid==0x02) |
chaithanyarss | 187:2c7263530c57 | 105 | { |
chaithanyarss | 187:2c7263530c57 | 106 | fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11]; |
chaithanyarss | 187:2c7263530c57 | 107 | start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15]; |
chaithanyarss | 187:2c7263530c57 | 108 | FSC_CURRENT[2] = fsc; |
chaithanyarss | 187:2c7263530c57 | 109 | FSC_LAST[2] = start_fsc; |
chaithanyarss | 187:2c7263530c57 | 110 | } |
chaithanyarss | 187:2c7263530c57 | 111 | if(sid==0x03) |
chaithanyarss | 187:2c7263530c57 | 112 | { |
chaithanyarss | 187:2c7263530c57 | 113 | fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19]; |
chaithanyarss | 187:2c7263530c57 | 114 | start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23]; |
chaithanyarss | 187:2c7263530c57 | 115 | FSC_CURRENT[3] = fsc; |
chaithanyarss | 187:2c7263530c57 | 116 | FSC_LAST[3] = start_fsc; |
chaithanyarss | 187:2c7263530c57 | 117 | } |
chaithanyarss | 187:2c7263530c57 | 118 | if(sid==0x04) |
chaithanyarss | 187:2c7263530c57 | 119 | { |
chaithanyarss | 187:2c7263530c57 | 120 | fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27]; |
chaithanyarss | 187:2c7263530c57 | 121 | start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31]; |
chaithanyarss | 187:2c7263530c57 | 122 | FSC_CURRENT[4] = fsc; |
chaithanyarss | 187:2c7263530c57 | 123 | FSC_LAST[4] = start_fsc; |
ee12b079 | 86:a26f5f22631d | 124 | } |
chaithanyarss | 187:2c7263530c57 | 125 | if(sid==0x05) |
chaithanyarss | 187:2c7263530c57 | 126 | { |
chaithanyarss | 187:2c7263530c57 | 127 | fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35]; |
chaithanyarss | 187:2c7263530c57 | 128 | start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39]; |
chaithanyarss | 187:2c7263530c57 | 129 | FSC_CURRENT[5] = fsc; |
chaithanyarss | 187:2c7263530c57 | 130 | FSC_LAST[5] = start_fsc; |
chaithanyarss | 187:2c7263530c57 | 131 | } |
chaithanyarss | 187:2c7263530c57 | 132 | return fsc; |
chaithanyarss | 187:2c7263530c57 | 133 | } |
chaithanyarss | 187:2c7263530c57 | 134 | |
chaithanyarss | 187:2c7263530c57 | 135 | int INCREMENT_SD_LIB(uint8_t sid) |
chaithanyarss | 187:2c7263530c57 | 136 | { |
chaithanyarss | 187:2c7263530c57 | 137 | uint32_t fsc; |
chaithanyarss | 187:2c7263530c57 | 138 | uint32_t start_fsc; |
chaithanyarss | 187:2c7263530c57 | 139 | uint8_t buffer[512]; |
chaithanyarss | 187:2c7263530c57 | 140 | disk_read(buffer,SD_MNG_SECT); |
chaithanyarss | 187:2c7263530c57 | 141 | if(sid==0x01) |
ee12b079 | 86:a26f5f22631d | 142 | { |
chaithanyarss | 187:2c7263530c57 | 143 | fsc=(uint32_t)(buffer[0]<<24)+(uint32_t)(buffer[1]<<16)+(uint32_t)(buffer[2]<<8)+(uint32_t)buffer[3]; |
chaithanyarss | 187:2c7263530c57 | 144 | start_fsc=(uint32_t)(buffer[4]<<24)+(uint32_t)(buffer[5]<<16)+(uint32_t)(buffer[6]<<8)+(uint32_t)buffer[7]; |
chaithanyarss | 187:2c7263530c57 | 145 | buffer[0]=(uint8_t) (fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 146 | buffer[1]=(uint8_t) (fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 147 | buffer[2]=(uint8_t) (fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 148 | buffer[3]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 149 | if(fsc > SD_SCP_LAST-SD_SCP_FIRST+1) |
chaithanyarss | 187:2c7263530c57 | 150 | { |
chaithanyarss | 187:2c7263530c57 | 151 | start_fsc = start_fsc+1; |
chaithanyarss | 187:2c7263530c57 | 152 | buffer[4]=(uint8_t) (start_fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 153 | buffer[5]=(uint8_t) (start_fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 154 | buffer[6]=(uint8_t) (start_fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 155 | buffer[7]=(uint8_t) (start_fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 156 | } |
chaithanyarss | 187:2c7263530c57 | 157 | return disk_write(buffer,SD_MNG_SECT); |
ee12b079 | 86:a26f5f22631d | 158 | } |
chaithanyarss | 187:2c7263530c57 | 159 | if(sid==0x02) |
ee12b079 | 86:a26f5f22631d | 160 | { |
ee12b079 | 92:bce22b38c440 | 161 | fsc=(uint32_t)(buffer[8]<<24)+(uint32_t)(buffer[9]<<16)+(uint32_t)(buffer[10]<<8)+(uint32_t)buffer[11]; |
chaithanyarss | 187:2c7263530c57 | 162 | start_fsc=(uint32_t)(buffer[12]<<24)+(uint32_t)(buffer[13]<<16)+(uint32_t)(buffer[14]<<8)+(uint32_t)buffer[15]; |
chaithanyarss | 187:2c7263530c57 | 163 | buffer[8]=(uint8_t) (fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 164 | buffer[9]=(uint8_t) (fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 165 | buffer[10]=(uint8_t) (fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 166 | buffer[11]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 167 | if(fsc > SD_SFF_AT_LAST-SD_SFF_AT_FIRST+1) |
chaithanyarss | 187:2c7263530c57 | 168 | { |
chaithanyarss | 187:2c7263530c57 | 169 | start_fsc = start_fsc+1; |
chaithanyarss | 187:2c7263530c57 | 170 | buffer[12]=(uint8_t) (start_fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 171 | buffer[13]=(uint8_t) (start_fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 172 | buffer[14]=(uint8_t) (start_fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 173 | buffer[15]=(uint8_t) (start_fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 174 | } |
chaithanyarss | 187:2c7263530c57 | 175 | return disk_write(buffer,SD_MNG_SECT); |
ee12b079 | 86:a26f5f22631d | 176 | } |
chaithanyarss | 187:2c7263530c57 | 177 | if(sid==0x03) |
ee12b079 | 86:a26f5f22631d | 178 | { |
ee12b079 | 92:bce22b38c440 | 179 | fsc=(uint32_t)(buffer[16]<<24)+(uint32_t)(buffer[17]<<16)+(uint32_t)(buffer[18]<<8)+(uint32_t)buffer[19]; |
chaithanyarss | 187:2c7263530c57 | 180 | start_fsc=(uint32_t)(buffer[20]<<24)+(uint32_t)(buffer[21]<<16)+(uint32_t)(buffer[22]<<8)+(uint32_t)buffer[23]; |
chaithanyarss | 187:2c7263530c57 | 181 | buffer[16]=(uint8_t) (fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 182 | buffer[17]=(uint8_t) (fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 183 | buffer[18]=(uint8_t) (fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 184 | buffer[19]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 185 | if(fsc > SD_SFF_BT_LAST-SD_SFF_BT_FIRST+1) |
chaithanyarss | 187:2c7263530c57 | 186 | { |
chaithanyarss | 187:2c7263530c57 | 187 | start_fsc = start_fsc+1; |
chaithanyarss | 187:2c7263530c57 | 188 | buffer[20]=(uint8_t) (start_fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 189 | buffer[21]=(uint8_t) (start_fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 190 | buffer[22]=(uint8_t) (start_fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 191 | buffer[23]=(uint8_t) (start_fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 192 | } |
chaithanyarss | 187:2c7263530c57 | 193 | return disk_write(buffer,SD_MNG_SECT); |
ee12b079 | 86:a26f5f22631d | 194 | } |
chaithanyarss | 187:2c7263530c57 | 195 | if(sid==0x04) |
chaithanyarss | 187:2c7263530c57 | 196 | { |
chaithanyarss | 187:2c7263530c57 | 197 | fsc=(uint32_t)(buffer[24]<<24)+(uint32_t)(buffer[25]<<16)+(uint32_t)(buffer[26]<<8)+(uint32_t)buffer[27]; |
chaithanyarss | 187:2c7263530c57 | 198 | start_fsc=(uint32_t)(buffer[28]<<24)+(uint32_t)(buffer[29]<<16)+(uint32_t)(buffer[30]<<8)+(uint32_t)buffer[31]; |
chaithanyarss | 187:2c7263530c57 | 199 | buffer[24]=(uint8_t) (fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 200 | buffer[25]=(uint8_t) (fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 201 | buffer[26]=(uint8_t) (fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 202 | buffer[27]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 203 | if(fsc > SD_HK_ARCH_LAST-SD_HK_ARCH_FIRST+1) |
chaithanyarss | 187:2c7263530c57 | 204 | { |
chaithanyarss | 187:2c7263530c57 | 205 | start_fsc = start_fsc+1; |
chaithanyarss | 187:2c7263530c57 | 206 | buffer[28]=(uint8_t) (start_fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 207 | buffer[29]=(uint8_t) (start_fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 208 | buffer[30]=(uint8_t) (start_fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 209 | buffer[31]=(uint8_t) (start_fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 210 | } |
chaithanyarss | 187:2c7263530c57 | 211 | return disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 187:2c7263530c57 | 212 | } |
chaithanyarss | 187:2c7263530c57 | 213 | if(sid==0x05) |
chaithanyarss | 187:2c7263530c57 | 214 | { |
chaithanyarss | 187:2c7263530c57 | 215 | fsc=(uint32_t)(buffer[32]<<24)+(uint32_t)(buffer[33]<<16)+(uint32_t)(buffer[34]<<8)+(uint32_t)buffer[35]; |
chaithanyarss | 187:2c7263530c57 | 216 | start_fsc=(uint32_t)(buffer[36]<<24)+(uint32_t)(buffer[37]<<16)+(uint32_t)(buffer[38]<<8)+(uint32_t)buffer[39]; |
chaithanyarss | 187:2c7263530c57 | 217 | buffer[32]=(uint8_t) (fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 218 | buffer[33]=(uint8_t) (fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 219 | buffer[34]=(uint8_t) (fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 220 | buffer[35]=(uint8_t) (fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 221 | if(fsc > LOG_LAST-LOG_FIRST+1) |
chaithanyarss | 187:2c7263530c57 | 222 | { |
chaithanyarss | 187:2c7263530c57 | 223 | start_fsc = start_fsc+1; |
chaithanyarss | 187:2c7263530c57 | 224 | buffer[36]=(uint8_t) (start_fsc>>24 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 225 | buffer[37]=(uint8_t) (start_fsc>>16 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 226 | buffer[38]=(uint8_t) (start_fsc>>8 & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 227 | buffer[39]=(uint8_t) (start_fsc & 0xFF); |
chaithanyarss | 187:2c7263530c57 | 228 | } |
chaithanyarss | 187:2c7263530c57 | 229 | return disk_write(buffer,SD_MNG_SECT); |
chaithanyarss | 187:2c7263530c57 | 230 | } |
chaithanyarss | 187:2c7263530c57 | 231 | return -1; |
ee12b079 | 86:a26f5f22631d | 232 | } |
ee12b079 | 86:a26f5f22631d | 233 | |
ee12b079 | 86:a26f5f22631d | 234 | |
ee12b079 | 92:bce22b38c440 | 235 | int SD_WRITE(uint8_t* buffer,uint32_t fsc,uint8_t sid) |
ee12b079 | 86:a26f5f22631d | 236 | { |
ee12b079 | 86:a26f5f22631d | 237 | uint32_t block_number; |
chaithanyarss | 187:2c7263530c57 | 238 | int result = 10; |
chaithanyarss | 187:2c7263530c57 | 239 | if(sid==0x01) |
ee12b079 | 86:a26f5f22631d | 240 | { |
chaithanyarss | 187:2c7263530c57 | 241 | //block_number=SD_SCP_FIRST+(fsc%(SD_SCP_LAST-SD_SCP_FIRST+1))-1; |
ee12b079 | 92:bce22b38c440 | 242 | block_number=SD_SCP_FIRST+fsc; |
ee12b079 | 86:a26f5f22631d | 243 | result= disk_write(buffer,block_number); |
chaithanyarss | 187:2c7263530c57 | 244 | if(result == 0) |
chaithanyarss | 187:2c7263530c57 | 245 | INCREMENT_SD_LIB(sid); |
chaithanyarss | 187:2c7263530c57 | 246 | return result; |
chaithanyarss | 187:2c7263530c57 | 247 | } |
chaithanyarss | 187:2c7263530c57 | 248 | if(sid==0x02) |
chaithanyarss | 187:2c7263530c57 | 249 | { |
chaithanyarss | 187:2c7263530c57 | 250 | //block_number= SD_SFF_AT_FIRST+(fsc%(SD_SFF_AT_LAST - SD_SFF_AT_FIRST+1))-1; |
chaithanyarss | 187:2c7263530c57 | 251 | block_number= SD_SFF_AT_FIRST+fsc; |
chaithanyarss | 187:2c7263530c57 | 252 | result= disk_write(buffer,block_number); |
chaithanyarss | 187:2c7263530c57 | 253 | if(result == 0) |
chaithanyarss | 187:2c7263530c57 | 254 | INCREMENT_SD_LIB(sid); |
ee12b079 | 86:a26f5f22631d | 255 | return result; |
ee12b079 | 86:a26f5f22631d | 256 | } |
chaithanyarss | 187:2c7263530c57 | 257 | if(sid==0x03) |
ee12b079 | 86:a26f5f22631d | 258 | { |
chaithanyarss | 187:2c7263530c57 | 259 | //block_number= SD_SFF_BT_FIRST +(fsc%(SD_SFF_BT_LAST - SD_SFF_BT_FIRST +1))-1; |
chaithanyarss | 187:2c7263530c57 | 260 | block_number= SD_SFF_BT_FIRST +fsc; |
ee12b079 | 86:a26f5f22631d | 261 | result= disk_write(buffer,block_number); |
chaithanyarss | 187:2c7263530c57 | 262 | if(result == 0) |
chaithanyarss | 187:2c7263530c57 | 263 | INCREMENT_SD_LIB(sid); |
ee12b079 | 86:a26f5f22631d | 264 | return result; |
ee12b079 | 86:a26f5f22631d | 265 | } |
chaithanyarss | 187:2c7263530c57 | 266 | if(sid==0x04) |
ee12b079 | 86:a26f5f22631d | 267 | { |
chaithanyarss | 187:2c7263530c57 | 268 | //block_number=SD_HK_ARCH_FIRST +(fsc%(SD_HK_ARCH_LAST - SD_HK_ARCH_FIRST +1))-1; |
chaithanyarss | 187:2c7263530c57 | 269 | block_number=SD_HK_ARCH_FIRST +fsc; |
ee12b079 | 86:a26f5f22631d | 270 | result= disk_write(buffer,block_number); |
chaithanyarss | 187:2c7263530c57 | 271 | if(result == 0) |
chaithanyarss | 187:2c7263530c57 | 272 | INCREMENT_SD_LIB(sid); |
ee12b079 | 86:a26f5f22631d | 273 | return result; |
ee12b079 | 86:a26f5f22631d | 274 | } |
chaithanyarss | 187:2c7263530c57 | 275 | if(sid==0x05) |
ee12b079 | 86:a26f5f22631d | 276 | { |
chaithanyarss | 187:2c7263530c57 | 277 | //block_number= LOG_FIRST +(fsc%(LOG_FIRST - LOG_FIRST +1))-1; |
chaithanyarss | 187:2c7263530c57 | 278 | block_number= LOG_FIRST +fsc; |
ee12b079 | 86:a26f5f22631d | 279 | result= disk_write(buffer,block_number); |
chaithanyarss | 187:2c7263530c57 | 280 | if(result == 0) |
chaithanyarss | 187:2c7263530c57 | 281 | INCREMENT_SD_LIB(sid); |
ee12b079 | 86:a26f5f22631d | 282 | return result; |
ee12b079 | 86:a26f5f22631d | 283 | } |
ee12b079 | 86:a26f5f22631d | 284 | return 1; |
ee12b079 | 86:a26f5f22631d | 285 | } |
ee12b079 | 86:a26f5f22631d | 286 | |
ee12b079 | 92:bce22b38c440 | 287 | int SD_READ(uint8_t* buffer,uint32_t fsc,uint8_t sid) |
ee12b079 | 86:a26f5f22631d | 288 | { |
ee12b079 | 86:a26f5f22631d | 289 | uint32_t block_number; |
ee12b079 | 86:a26f5f22631d | 290 | int result; |
chaithanyarss | 187:2c7263530c57 | 291 | if(sid==0x01) |
ee12b079 | 86:a26f5f22631d | 292 | { |
ee12b079 | 92:bce22b38c440 | 293 | block_number=SD_SCP_FIRST + fsc; |
ee12b079 | 86:a26f5f22631d | 294 | result= disk_read(buffer,block_number); |
ee12b079 | 86:a26f5f22631d | 295 | } |
chaithanyarss | 187:2c7263530c57 | 296 | else if(sid==0x02) |
ee12b079 | 86:a26f5f22631d | 297 | { |
ee12b079 | 86:a26f5f22631d | 298 | block_number=SD_SFF_AT_FIRST + fsc; |
ee12b079 | 86:a26f5f22631d | 299 | result= disk_read(buffer,block_number); |
ee12b079 | 86:a26f5f22631d | 300 | } |
chaithanyarss | 187:2c7263530c57 | 301 | else if(sid==0x03) |
ee12b079 | 86:a26f5f22631d | 302 | { |
ee12b079 | 86:a26f5f22631d | 303 | block_number=SD_SFF_BT_FIRST + fsc; |
ee12b079 | 86:a26f5f22631d | 304 | result= disk_read(buffer,block_number); |
ee12b079 | 86:a26f5f22631d | 305 | } |
chaithanyarss | 187:2c7263530c57 | 306 | else if(sid==0x04) |
ee12b079 | 86:a26f5f22631d | 307 | { |
ee12b079 | 86:a26f5f22631d | 308 | block_number=SD_HK_ARCH_FIRST + fsc; |
ee12b079 | 86:a26f5f22631d | 309 | result= disk_read(buffer,block_number); |
ee12b079 | 86:a26f5f22631d | 310 | } |
chaithanyarss | 187:2c7263530c57 | 311 | else if(sid==0x05) |
ee12b079 | 86:a26f5f22631d | 312 | { |
ee12b079 | 86:a26f5f22631d | 313 | block_number=LOG_FIRST +fsc; |
ee12b079 | 86:a26f5f22631d | 314 | result= disk_read(buffer,block_number); |
ee12b079 | 86:a26f5f22631d | 315 | } |
ee12b079 | 86:a26f5f22631d | 316 | else |
ee12b079 | 86:a26f5f22631d | 317 | { |
ee12b079 | 86:a26f5f22631d | 318 | return 1; |
ee12b079 | 86:a26f5f22631d | 319 | } |
ee12b079 | 86:a26f5f22631d | 320 | return result; |
ee12b079 | 86:a26f5f22631d | 321 | } |
ee12b079 | 86:a26f5f22631d | 322 | |
ee12b079 | 86:a26f5f22631d | 323 | |
ee12b079 | 86:a26f5f22631d | 324 | int initialise_card() |
ee12b079 | 86:a26f5f22631d | 325 | { |
ee12b079 | 86:a26f5f22631d | 326 | // Set to 100kHz for initialisation, and clock card with cs_sd = 1 |
ee12b079 | 86:a26f5f22631d | 327 | spi.frequency(100000); // changed on 31 12 2015 to 1 MHz |
ee12b079 | 86:a26f5f22631d | 328 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 329 | for (int i = 0; i < 16; i++) { |
ee12b079 | 86:a26f5f22631d | 330 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 331 | } |
chaithanyarss | 187:2c7263530c57 | 332 | uint8_t R1_response = cmd(0,0); |
chaithanyarss | 187:2c7263530c57 | 333 | gPC.printf("0x%02X",R1_response); |
ee12b079 | 86:a26f5f22631d | 334 | // send CMD0, should return with all zeros except IDLE STATE set (bit 0) |
chaithanyarss | 187:2c7263530c57 | 335 | if (R1_response != R1_IDLE_STATE) { |
ee12b079 | 86:a26f5f22631d | 336 | debug("No disk, or could not put SD card in to spi idle state\r\n"); |
ee12b079 | 86:a26f5f22631d | 337 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 338 | } |
chaithanyarss | 187:2c7263530c57 | 339 | else |
chaithanyarss | 187:2c7263530c57 | 340 | gPC.puts("SD Card is in IDLE state\n\r"); |
ee12b079 | 86:a26f5f22631d | 341 | |
chaithanyarss | 187:2c7263530c57 | 342 | // send CMD8 to determine whther it is ver 2.x |
ee12b079 | 86:a26f5f22631d | 343 | int r = cmd8(); |
ee12b079 | 86:a26f5f22631d | 344 | if (r == R1_IDLE_STATE) { |
chaithanyarss | 187:2c7263530c57 | 345 | gPC.puts("Entering V2\r"); |
chaithanyarss | 187:2c7263530c57 | 346 | int q = initialise_card_v2(); |
chaithanyarss | 187:2c7263530c57 | 347 | return q; |
ee12b079 | 86:a26f5f22631d | 348 | |
ee12b079 | 86:a26f5f22631d | 349 | } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) { |
chaithanyarss | 187:2c7263530c57 | 350 | gPC.puts("Entering V1"); |
ee12b079 | 86:a26f5f22631d | 351 | return initialise_card_v1(); |
ee12b079 | 86:a26f5f22631d | 352 | |
ee12b079 | 86:a26f5f22631d | 353 | } else { |
ee12b079 | 86:a26f5f22631d | 354 | debug("\rNot in idle state after sending CMD8 (not an SD card?)\r\n"); |
ee12b079 | 86:a26f5f22631d | 355 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 356 | } |
ee12b079 | 86:a26f5f22631d | 357 | } |
ee12b079 | 86:a26f5f22631d | 358 | |
ee12b079 | 86:a26f5f22631d | 359 | int initialise_card_v1() |
ee12b079 | 86:a26f5f22631d | 360 | { |
ee12b079 | 86:a26f5f22631d | 361 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 362 | cmd(55, 0); |
ee12b079 | 86:a26f5f22631d | 363 | if (cmd(41, 0) == 0) { |
ee12b079 | 96:4ca92f9775e0 | 364 | gPC.puts("\rv1 initialization successfull\r\n"); |
ee12b079 | 86:a26f5f22631d | 365 | cdv = 512; |
ee12b079 | 86:a26f5f22631d | 366 | debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r"); |
ee12b079 | 86:a26f5f22631d | 367 | |
ee12b079 | 86:a26f5f22631d | 368 | return SDCARD_V1; |
ee12b079 | 86:a26f5f22631d | 369 | } |
ee12b079 | 86:a26f5f22631d | 370 | } |
ee12b079 | 86:a26f5f22631d | 371 | |
ee12b079 | 86:a26f5f22631d | 372 | debug("\rTimeout waiting for v1.x card\r\n"); |
ee12b079 | 86:a26f5f22631d | 373 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 374 | } |
ee12b079 | 86:a26f5f22631d | 375 | |
ee12b079 | 86:a26f5f22631d | 376 | |
ee12b079 | 86:a26f5f22631d | 377 | int initialise_card_v2() |
ee12b079 | 86:a26f5f22631d | 378 | { |
ee12b079 | 86:a26f5f22631d | 379 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 380 | wait_ms(50); |
ee12b079 | 86:a26f5f22631d | 381 | cmd58(); |
ee12b079 | 86:a26f5f22631d | 382 | cmd(55, 0); |
ee12b079 | 86:a26f5f22631d | 383 | if (cmd(41, 0x40000000) == 0) { |
ee12b079 | 134:4694fc291ce1 | 384 | if (DEBUG) |
ee12b079 | 134:4694fc291ce1 | 385 | gPC.puts("\rv2 initialization successfull\r\n"); |
ee12b079 | 86:a26f5f22631d | 386 | cmd58(); |
ee12b079 | 86:a26f5f22631d | 387 | debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r"); |
ee12b079 | 86:a26f5f22631d | 388 | cdv = 1; |
ee12b079 | 86:a26f5f22631d | 389 | return SDCARD_V2; |
ee12b079 | 86:a26f5f22631d | 390 | } |
ee12b079 | 86:a26f5f22631d | 391 | } |
ee12b079 | 86:a26f5f22631d | 392 | |
ee12b079 | 86:a26f5f22631d | 393 | debug("\rTimeout waiting for v2.x card\r\n"); |
ee12b079 | 86:a26f5f22631d | 394 | return SDCARD_FAIL; |
ee12b079 | 86:a26f5f22631d | 395 | } |
ee12b079 | 86:a26f5f22631d | 396 | |
ee12b079 | 86:a26f5f22631d | 397 | int cmd(int cmd, int arg) |
ee12b079 | 86:a26f5f22631d | 398 | { |
ee12b079 | 86:a26f5f22631d | 399 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 400 | |
ee12b079 | 86:a26f5f22631d | 401 | // send a command |
ee12b079 | 86:a26f5f22631d | 402 | spi.write(0x40 | cmd); |
ee12b079 | 86:a26f5f22631d | 403 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 404 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 405 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 406 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 407 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 408 | |
ee12b079 | 86:a26f5f22631d | 409 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 410 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 411 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 412 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 413 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 414 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 415 | return response; |
ee12b079 | 86:a26f5f22631d | 416 | } |
ee12b079 | 86:a26f5f22631d | 417 | } |
ee12b079 | 86:a26f5f22631d | 418 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 419 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 420 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 421 | } |
ee12b079 | 86:a26f5f22631d | 422 | |
ee12b079 | 86:a26f5f22631d | 423 | |
ee12b079 | 86:a26f5f22631d | 424 | int cmd58() |
ee12b079 | 86:a26f5f22631d | 425 | { |
ee12b079 | 86:a26f5f22631d | 426 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 427 | int arg = 0; |
ee12b079 | 86:a26f5f22631d | 428 | |
ee12b079 | 86:a26f5f22631d | 429 | // send a command |
ee12b079 | 86:a26f5f22631d | 430 | spi.write(0x40 | 58); |
ee12b079 | 86:a26f5f22631d | 431 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 432 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 433 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 434 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 435 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 436 | |
ee12b079 | 86:a26f5f22631d | 437 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 438 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 439 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 440 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 441 | int ocr = spi.write(0xFF) << 24; |
ee12b079 | 86:a26f5f22631d | 442 | ocr |= spi.write(0xFF) << 16; |
ee12b079 | 86:a26f5f22631d | 443 | ocr |= spi.write(0xFF) << 8; |
ee12b079 | 86:a26f5f22631d | 444 | ocr |= spi.write(0xFF) << 0; |
ee12b079 | 86:a26f5f22631d | 445 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 446 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 447 | return response; |
ee12b079 | 86:a26f5f22631d | 448 | } |
ee12b079 | 86:a26f5f22631d | 449 | } |
ee12b079 | 86:a26f5f22631d | 450 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 451 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 452 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 453 | } |
ee12b079 | 86:a26f5f22631d | 454 | |
ee12b079 | 86:a26f5f22631d | 455 | |
ee12b079 | 86:a26f5f22631d | 456 | int cmd8() |
ee12b079 | 86:a26f5f22631d | 457 | { |
ee12b079 | 86:a26f5f22631d | 458 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 459 | |
ee12b079 | 86:a26f5f22631d | 460 | // send a command |
ee12b079 | 86:a26f5f22631d | 461 | spi.write(0x40 | 8); // CMD8 |
ee12b079 | 86:a26f5f22631d | 462 | spi.write(0x00); // reserved |
ee12b079 | 86:a26f5f22631d | 463 | spi.write(0x00); // reserved |
ee12b079 | 86:a26f5f22631d | 464 | spi.write(0x01); // 3.3v |
ee12b079 | 86:a26f5f22631d | 465 | spi.write(0xAA); // check pattern |
ee12b079 | 86:a26f5f22631d | 466 | spi.write(0x87); // crc |
ee12b079 | 86:a26f5f22631d | 467 | |
ee12b079 | 86:a26f5f22631d | 468 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 469 | for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) { |
ee12b079 | 86:a26f5f22631d | 470 | char response[5]; |
ee12b079 | 86:a26f5f22631d | 471 | response[0] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 472 | if (!(response[0] & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 473 | for (int j = 1; j < 5; j++) { |
ee12b079 | 86:a26f5f22631d | 474 | response[i] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 475 | } |
ee12b079 | 86:a26f5f22631d | 476 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 477 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 478 | return response[0]; |
ee12b079 | 86:a26f5f22631d | 479 | } |
ee12b079 | 86:a26f5f22631d | 480 | } |
ee12b079 | 86:a26f5f22631d | 481 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 482 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 483 | return -1; // timeout |
ee12b079 | 86:a26f5f22631d | 484 | } |
ee12b079 | 86:a26f5f22631d | 485 | |
ee12b079 | 86:a26f5f22631d | 486 | uint64_t sd_sectors() |
ee12b079 | 86:a26f5f22631d | 487 | { |
ee12b079 | 86:a26f5f22631d | 488 | uint32_t c_size, c_size_mult, read_bl_len; |
ee12b079 | 86:a26f5f22631d | 489 | uint32_t block_len, mult, blocknr, capacity; |
ee12b079 | 86:a26f5f22631d | 490 | uint32_t hc_c_size; |
ee12b079 | 86:a26f5f22631d | 491 | uint64_t blocks; |
ee12b079 | 86:a26f5f22631d | 492 | |
ee12b079 | 86:a26f5f22631d | 493 | // CMD9, Response R2 (R1 byte + 16-byte block read) |
ee12b079 | 86:a26f5f22631d | 494 | if (cmdx(9, 0) != 0) { |
ee12b079 | 86:a26f5f22631d | 495 | debug("\rDidn't get a response from the disk\n"); |
ee12b079 | 86:a26f5f22631d | 496 | return 0; |
ee12b079 | 86:a26f5f22631d | 497 | } |
ee12b079 | 86:a26f5f22631d | 498 | |
ee12b079 | 86:a26f5f22631d | 499 | uint8_t cs_sdd[16]; |
ee12b079 | 86:a26f5f22631d | 500 | if (read(cs_sdd, 16) != 0) { |
ee12b079 | 86:a26f5f22631d | 501 | debug("\rCouldn't read cs_sdd response from disk\n"); |
ee12b079 | 86:a26f5f22631d | 502 | return 0; |
ee12b079 | 86:a26f5f22631d | 503 | } |
ee12b079 | 86:a26f5f22631d | 504 | |
ee12b079 | 86:a26f5f22631d | 505 | // cs_sdd_structure : cs_sdd[127:126] |
ee12b079 | 86:a26f5f22631d | 506 | // c_size : cs_sdd[73:62] |
ee12b079 | 86:a26f5f22631d | 507 | // c_size_mult : cs_sdd[49:47] |
ee12b079 | 86:a26f5f22631d | 508 | // read_bl_len : cs_sdd[83:80] - the *maximum* read block length |
ee12b079 | 86:a26f5f22631d | 509 | |
ee12b079 | 86:a26f5f22631d | 510 | int cs_sdd_structure = ext_bits(cs_sdd, 127, 126); |
ee12b079 | 86:a26f5f22631d | 511 | |
ee12b079 | 86:a26f5f22631d | 512 | switch (cs_sdd_structure) { |
ee12b079 | 86:a26f5f22631d | 513 | case 0: |
ee12b079 | 86:a26f5f22631d | 514 | cdv = 512; |
ee12b079 | 86:a26f5f22631d | 515 | c_size = ext_bits(cs_sdd, 73, 62); |
ee12b079 | 86:a26f5f22631d | 516 | c_size_mult = ext_bits(cs_sdd, 49, 47); |
ee12b079 | 86:a26f5f22631d | 517 | read_bl_len = ext_bits(cs_sdd, 83, 80); |
ee12b079 | 86:a26f5f22631d | 518 | |
ee12b079 | 86:a26f5f22631d | 519 | block_len = 1 << read_bl_len; |
ee12b079 | 86:a26f5f22631d | 520 | mult = 1 << (c_size_mult + 2); |
ee12b079 | 86:a26f5f22631d | 521 | blocknr = (c_size + 1) * mult; |
ee12b079 | 86:a26f5f22631d | 522 | capacity = blocknr * block_len; |
ee12b079 | 86:a26f5f22631d | 523 | blocks = capacity / 512; |
ee12b079 | 86:a26f5f22631d | 524 | 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 | 525 | break; |
ee12b079 | 86:a26f5f22631d | 526 | |
ee12b079 | 86:a26f5f22631d | 527 | case 1: |
ee12b079 | 86:a26f5f22631d | 528 | cdv = 1; |
ee12b079 | 86:a26f5f22631d | 529 | hc_c_size = ext_bits(cs_sdd, 63, 48); |
ee12b079 | 86:a26f5f22631d | 530 | blocks = (hc_c_size+1)*1024; |
ee12b079 | 86:a26f5f22631d | 531 | 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 | 532 | break; |
ee12b079 | 86:a26f5f22631d | 533 | |
ee12b079 | 86:a26f5f22631d | 534 | default: |
ee12b079 | 86:a26f5f22631d | 535 | debug("cs_sdD struct unsupported\r\n"); |
ee12b079 | 86:a26f5f22631d | 536 | return 0; |
ee12b079 | 86:a26f5f22631d | 537 | }; |
ee12b079 | 86:a26f5f22631d | 538 | return blocks; |
ee12b079 | 86:a26f5f22631d | 539 | } |
ee12b079 | 86:a26f5f22631d | 540 | |
ee12b079 | 86:a26f5f22631d | 541 | int cmdx(int cmd, int arg) |
ee12b079 | 86:a26f5f22631d | 542 | { |
ee12b079 | 86:a26f5f22631d | 543 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 544 | |
ee12b079 | 86:a26f5f22631d | 545 | // send a command |
ee12b079 | 86:a26f5f22631d | 546 | spi.write(0x40 | cmd); |
ee12b079 | 86:a26f5f22631d | 547 | spi.write(arg >> 24); |
ee12b079 | 86:a26f5f22631d | 548 | spi.write(arg >> 16); |
ee12b079 | 86:a26f5f22631d | 549 | spi.write(arg >> 8); |
ee12b079 | 86:a26f5f22631d | 550 | spi.write(arg >> 0); |
ee12b079 | 86:a26f5f22631d | 551 | spi.write(0x95); |
ee12b079 | 86:a26f5f22631d | 552 | |
ee12b079 | 86:a26f5f22631d | 553 | // wait for the repsonse (response[7] == 0) |
ee12b079 | 86:a26f5f22631d | 554 | for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) { |
ee12b079 | 86:a26f5f22631d | 555 | int response = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 556 | if (!(response & 0x80)) { |
ee12b079 | 86:a26f5f22631d | 557 | return response; |
ee12b079 | 86:a26f5f22631d | 558 | } |
ee12b079 | 86:a26f5f22631d | 559 | } |
ee12b079 | 86:a26f5f22631d | 560 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 561 | spi.write(0xFF); |
chaithanyarss | 187:2c7263530c57 | 562 | return 1; // timeout |
ee12b079 | 86:a26f5f22631d | 563 | } |
ee12b079 | 86:a26f5f22631d | 564 | |
ee12b079 | 86:a26f5f22631d | 565 | static uint32_t ext_bits(unsigned char *data, int msb, int lsb) |
ee12b079 | 86:a26f5f22631d | 566 | { |
ee12b079 | 86:a26f5f22631d | 567 | uint32_t bits = 0; |
ee12b079 | 86:a26f5f22631d | 568 | uint32_t size = 1 + msb - lsb; |
ee12b079 | 86:a26f5f22631d | 569 | for (int i = 0; i < size; i++) { |
ee12b079 | 86:a26f5f22631d | 570 | uint32_t position = lsb + i; |
ee12b079 | 86:a26f5f22631d | 571 | uint32_t byte = 15 - (position >> 3); |
ee12b079 | 86:a26f5f22631d | 572 | uint32_t bit = position & 0x7; |
ee12b079 | 86:a26f5f22631d | 573 | uint32_t value = (data[byte] >> bit) & 1; |
ee12b079 | 86:a26f5f22631d | 574 | bits |= value << i; |
ee12b079 | 86:a26f5f22631d | 575 | } |
ee12b079 | 86:a26f5f22631d | 576 | return bits; |
ee12b079 | 86:a26f5f22631d | 577 | } |
ee12b079 | 86:a26f5f22631d | 578 | |
ee12b079 | 86:a26f5f22631d | 579 | int disk_initialize() |
ee12b079 | 86:a26f5f22631d | 580 | { |
ee12b079 | 86:a26f5f22631d | 581 | |
ee12b079 | 86:a26f5f22631d | 582 | } |
ee12b079 | 86:a26f5f22631d | 583 | |
ee12b079 | 86:a26f5f22631d | 584 | int disk_write(const uint8_t *buffer, uint64_t block_number) |
ee12b079 | 86:a26f5f22631d | 585 | |
ee12b079 | 86:a26f5f22631d | 586 | { |
ee12b079 | 86:a26f5f22631d | 587 | // set write address for single block (CMD24) |
ee12b079 | 86:a26f5f22631d | 588 | if (cmd(24, block_number * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 589 | return 1; |
ee12b079 | 86:a26f5f22631d | 590 | } |
ee12b079 | 86:a26f5f22631d | 591 | |
ee12b079 | 86:a26f5f22631d | 592 | // send the data block |
ee12b079 | 86:a26f5f22631d | 593 | write(buffer, 512); |
ee12b079 | 86:a26f5f22631d | 594 | //printf("Written Successfully bro \n"); |
ee12b079 | 86:a26f5f22631d | 595 | return 0; |
ee12b079 | 86:a26f5f22631d | 596 | } |
ee12b079 | 86:a26f5f22631d | 597 | |
ee12b079 | 86:a26f5f22631d | 598 | int write(const uint8_t*buffer, uint32_t length) |
ee12b079 | 86:a26f5f22631d | 599 | { |
ee12b079 | 86:a26f5f22631d | 600 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 601 | |
ee12b079 | 86:a26f5f22631d | 602 | // indicate start of block |
ee12b079 | 86:a26f5f22631d | 603 | spi.write(0xFE); |
ee12b079 | 86:a26f5f22631d | 604 | |
ee12b079 | 86:a26f5f22631d | 605 | // write the data |
ee12b079 | 86:a26f5f22631d | 606 | for (int i = 0; i < length; i++) { |
ee12b079 | 86:a26f5f22631d | 607 | spi.write(buffer[i]); |
ee12b079 | 86:a26f5f22631d | 608 | } |
ee12b079 | 86:a26f5f22631d | 609 | |
ee12b079 | 86:a26f5f22631d | 610 | // write the checksum |
ee12b079 | 86:a26f5f22631d | 611 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 612 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 613 | |
ee12b079 | 86:a26f5f22631d | 614 | // check the response token |
ee12b079 | 86:a26f5f22631d | 615 | if ((spi.write(0xFF) & 0x1F) != 0x05) { |
ee12b079 | 86:a26f5f22631d | 616 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 617 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 618 | return 1; |
ee12b079 | 86:a26f5f22631d | 619 | } |
ee12b079 | 86:a26f5f22631d | 620 | |
ee12b079 | 86:a26f5f22631d | 621 | // wait for write to finish |
ee12b079 | 86:a26f5f22631d | 622 | while (spi.write(0xFF) == 0); |
ee12b079 | 86:a26f5f22631d | 623 | |
ee12b079 | 86:a26f5f22631d | 624 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 625 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 626 | return 0; |
ee12b079 | 86:a26f5f22631d | 627 | } |
ee12b079 | 86:a26f5f22631d | 628 | |
ee12b079 | 86:a26f5f22631d | 629 | int disk_read(uint8_t *buffer, uint64_t block_number) |
ee12b079 | 86:a26f5f22631d | 630 | { |
ee12b079 | 86:a26f5f22631d | 631 | // set read address for single block (CMD17) |
ee12b079 | 86:a26f5f22631d | 632 | if (cmd(17, block_number * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 633 | return 1; |
ee12b079 | 86:a26f5f22631d | 634 | } |
ee12b079 | 86:a26f5f22631d | 635 | |
ee12b079 | 86:a26f5f22631d | 636 | // receive the data |
ee12b079 | 86:a26f5f22631d | 637 | read(buffer, 512); |
ee12b079 | 86:a26f5f22631d | 638 | return 0; |
ee12b079 | 86:a26f5f22631d | 639 | } |
ee12b079 | 86:a26f5f22631d | 640 | |
ee12b079 | 86:a26f5f22631d | 641 | int read(uint8_t *buffer, uint32_t length) |
ee12b079 | 86:a26f5f22631d | 642 | { |
ee12b079 | 86:a26f5f22631d | 643 | cs_sd = 0; |
ee12b079 | 86:a26f5f22631d | 644 | |
ee12b079 | 86:a26f5f22631d | 645 | // read until start byte (0xFF) |
ee12b079 | 86:a26f5f22631d | 646 | while (spi.write(0xFF) != 0xFE); |
ee12b079 | 86:a26f5f22631d | 647 | |
ee12b079 | 86:a26f5f22631d | 648 | // read data |
ee12b079 | 86:a26f5f22631d | 649 | for (int i = 0; i < length; i++) { |
ee12b079 | 86:a26f5f22631d | 650 | buffer[i] = spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 651 | } |
ee12b079 | 86:a26f5f22631d | 652 | spi.write(0xFF); // checksum |
ee12b079 | 86:a26f5f22631d | 653 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 654 | |
ee12b079 | 86:a26f5f22631d | 655 | cs_sd = 1; |
ee12b079 | 86:a26f5f22631d | 656 | spi.write(0xFF); |
ee12b079 | 86:a26f5f22631d | 657 | return 0; |
ee12b079 | 86:a26f5f22631d | 658 | } |
ee12b079 | 86:a26f5f22631d | 659 | |
ee12b079 | 86:a26f5f22631d | 660 | int disk_erase(int startBlock, int totalBlocks) |
ee12b079 | 86:a26f5f22631d | 661 | { |
ee12b079 | 86:a26f5f22631d | 662 | if(cmd(32, startBlock * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 663 | return 1; |
ee12b079 | 86:a26f5f22631d | 664 | } |
ee12b079 | 86:a26f5f22631d | 665 | if (cmd(33, (startBlock+totalBlocks-1) * cdv) != 0) { |
ee12b079 | 86:a26f5f22631d | 666 | return 1; |
ee12b079 | 86:a26f5f22631d | 667 | } |
ee12b079 | 86:a26f5f22631d | 668 | if (cmd(38,0) != 0) { |
ee12b079 | 86:a26f5f22631d | 669 | return 1; |
ee12b079 | 86:a26f5f22631d | 670 | } |
ee12b079 | 86:a26f5f22631d | 671 | |
ee12b079 | 86:a26f5f22631d | 672 | return 0; //normal return |
ee12b079 | 92:bce22b38c440 | 673 | } |