MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_sd.c@46:b156ef445742, 2017-06-03 (annotated)

Committer:
sahilmgandhi
Date:
Sat Jun 03 00:22:44 2017 +0000
Revision:
46:b156ef445742
Parent:
18:6a4db94011d3 
Final code for internal battlebot competition.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /**************************************************************************//**
sahilmgandhi 18:6a4db94011d3 2 * @file SD.c
sahilmgandhi 18:6a4db94011d3 3 * @version V1.00
sahilmgandhi 18:6a4db94011d3 4 * $Revision: 16 $
sahilmgandhi 18:6a4db94011d3 5 * $Date: 15/11/26 10:45a $
sahilmgandhi 18:6a4db94011d3 6 * @brief NUC472/NUC442 SD driver source file
sahilmgandhi 18:6a4db94011d3 7 *
sahilmgandhi 18:6a4db94011d3 8 * @note
sahilmgandhi 18:6a4db94011d3 9 * Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
sahilmgandhi 18:6a4db94011d3 10 *****************************************************************************/
sahilmgandhi 18:6a4db94011d3 11 #include <stdio.h>
sahilmgandhi 18:6a4db94011d3 12 #include <stdlib.h>
sahilmgandhi 18:6a4db94011d3 13 #include <string.h>
sahilmgandhi 18:6a4db94011d3 14 #include "NUC472_442.h"
sahilmgandhi 18:6a4db94011d3 15
sahilmgandhi 18:6a4db94011d3 16 /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
sahilmgandhi 18:6a4db94011d3 17 @{
sahilmgandhi 18:6a4db94011d3 18 */
sahilmgandhi 18:6a4db94011d3 19
sahilmgandhi 18:6a4db94011d3 20 /** @addtogroup NUC472_442_SD_Driver SD Driver
sahilmgandhi 18:6a4db94011d3 21 @{
sahilmgandhi 18:6a4db94011d3 22 */
sahilmgandhi 18:6a4db94011d3 23
sahilmgandhi 18:6a4db94011d3 24
sahilmgandhi 18:6a4db94011d3 25 /** @addtogroup NUC472_442_SD_EXPORTED_FUNCTIONS SD Exported Functions
sahilmgandhi 18:6a4db94011d3 26 @{
sahilmgandhi 18:6a4db94011d3 27 */
sahilmgandhi 18:6a4db94011d3 28 #define SD_BLOCK_SIZE 512
sahilmgandhi 18:6a4db94011d3 29
sahilmgandhi 18:6a4db94011d3 30 /// @cond HIDDEN_SYMBOLS
sahilmgandhi 18:6a4db94011d3 31
sahilmgandhi 18:6a4db94011d3 32 // global variables
sahilmgandhi 18:6a4db94011d3 33 // For response R3 (such as ACMD41, CRC-7 is invalid; but SD controller will still
sahilmgandhi 18:6a4db94011d3 34 // calculate CRC-7 and get an error result, software should ignore this error and clear SDISR [CRC_IF] flag
sahilmgandhi 18:6a4db94011d3 35 // _sd_uR3_CMD is the flag for it. 1 means software should ignore CRC-7 error
sahilmgandhi 18:6a4db94011d3 36 uint32_t _sd_uR3_CMD=0;
sahilmgandhi 18:6a4db94011d3 37 uint32_t _sd_uR7_CMD=0;
sahilmgandhi 18:6a4db94011d3 38 uint8_t volatile _sd_SDDataReady = FALSE;
sahilmgandhi 18:6a4db94011d3 39
sahilmgandhi 18:6a4db94011d3 40 uint8_t *_sd_pSDHCBuffer;
sahilmgandhi 18:6a4db94011d3 41 uint32_t _sd_ReferenceClock;
sahilmgandhi 18:6a4db94011d3 42
sahilmgandhi 18:6a4db94011d3 43 #if defined (__CC_ARM)
sahilmgandhi 18:6a4db94011d3 44 __align(4096) uint8_t _sd_ucSDHCBuffer[512];
sahilmgandhi 18:6a4db94011d3 45 #elif defined ( __ICCARM__ ) /*!< IAR Compiler */
sahilmgandhi 18:6a4db94011d3 46 #pragma data_alignment = 4096
sahilmgandhi 18:6a4db94011d3 47 uint8_t _sd_ucSDHCBuffer[512];
sahilmgandhi 18:6a4db94011d3 48 #elif defined ( __GNUC__ )
sahilmgandhi 18:6a4db94011d3 49 uint8_t _sd_ucSDHCBuffer[512] __attribute__((aligned (4096)));
sahilmgandhi 18:6a4db94011d3 50 #endif
sahilmgandhi 18:6a4db94011d3 51
sahilmgandhi 18:6a4db94011d3 52 int sd0_ok = 0;
sahilmgandhi 18:6a4db94011d3 53 int sd1_ok = 0;
sahilmgandhi 18:6a4db94011d3 54
sahilmgandhi 18:6a4db94011d3 55 uint8_t pSD0_offset = 0;
sahilmgandhi 18:6a4db94011d3 56 uint8_t pSD1_offset = 0;
sahilmgandhi 18:6a4db94011d3 57
sahilmgandhi 18:6a4db94011d3 58 DISK_DATA_T SD_DiskInfo0;
sahilmgandhi 18:6a4db94011d3 59 DISK_DATA_T SD_DiskInfo1;
sahilmgandhi 18:6a4db94011d3 60
sahilmgandhi 18:6a4db94011d3 61 SD_INFO_T SD0;
sahilmgandhi 18:6a4db94011d3 62 SD_INFO_T SD1;
sahilmgandhi 18:6a4db94011d3 63
sahilmgandhi 18:6a4db94011d3 64 void SD_CheckRB()
sahilmgandhi 18:6a4db94011d3 65 {
sahilmgandhi 18:6a4db94011d3 66 while(1) {
sahilmgandhi 18:6a4db94011d3 67 SD->CTL |= SDH_CTL_CLK8OEN_Msk;
sahilmgandhi 18:6a4db94011d3 68 while(SD->CTL & SDH_CTL_CLK8OEN_Msk);
sahilmgandhi 18:6a4db94011d3 69 if (SD->INTSTS & SDH_INTSTS_DAT0STS_Msk)
sahilmgandhi 18:6a4db94011d3 70 break;
sahilmgandhi 18:6a4db94011d3 71 }
sahilmgandhi 18:6a4db94011d3 72 }
sahilmgandhi 18:6a4db94011d3 73
sahilmgandhi 18:6a4db94011d3 74
sahilmgandhi 18:6a4db94011d3 75 int SD_SDCommand(SD_INFO_T *pSD, uint8_t ucCmd, uint32_t uArg)
sahilmgandhi 18:6a4db94011d3 76 {
sahilmgandhi 18:6a4db94011d3 77 volatile int buf;
sahilmgandhi 18:6a4db94011d3 78
sahilmgandhi 18:6a4db94011d3 79 SD->CMDARG = uArg;
sahilmgandhi 18:6a4db94011d3 80 buf = (SD->CTL&(~SDH_CTL_CMDCODE_Msk))|(ucCmd << 8)|(SDH_CTL_COEN_Msk);
sahilmgandhi 18:6a4db94011d3 81 SD->CTL = buf;
sahilmgandhi 18:6a4db94011d3 82
sahilmgandhi 18:6a4db94011d3 83 while(SD->CTL & SDH_CTL_COEN_Msk) {
sahilmgandhi 18:6a4db94011d3 84 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 85 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 86 }
sahilmgandhi 18:6a4db94011d3 87 return Successful;
sahilmgandhi 18:6a4db94011d3 88 }
sahilmgandhi 18:6a4db94011d3 89
sahilmgandhi 18:6a4db94011d3 90
sahilmgandhi 18:6a4db94011d3 91 int SD_SDCmdAndRsp(SD_INFO_T *pSD, uint8_t ucCmd, uint32_t uArg, int ntickCount)
sahilmgandhi 18:6a4db94011d3 92 {
sahilmgandhi 18:6a4db94011d3 93 volatile int buf;
sahilmgandhi 18:6a4db94011d3 94
sahilmgandhi 18:6a4db94011d3 95 SD->CMDARG = uArg;
sahilmgandhi 18:6a4db94011d3 96 buf = (SD->CTL&(~SDH_CTL_CMDCODE_Msk))|(ucCmd << 8)|(SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk);
sahilmgandhi 18:6a4db94011d3 97 SD->CTL = buf;
sahilmgandhi 18:6a4db94011d3 98
sahilmgandhi 18:6a4db94011d3 99 if (ntickCount > 0) {
sahilmgandhi 18:6a4db94011d3 100 while(SD->CTL & SDH_CTL_RIEN_Msk) {
sahilmgandhi 18:6a4db94011d3 101 if(ntickCount-- == 0) {
sahilmgandhi 18:6a4db94011d3 102 SD->CTL |= SDH_CTL_CTLRST_Msk; // reset SD engine
sahilmgandhi 18:6a4db94011d3 103 return 2;
sahilmgandhi 18:6a4db94011d3 104 }
sahilmgandhi 18:6a4db94011d3 105 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 106 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 107 }
sahilmgandhi 18:6a4db94011d3 108 } else {
sahilmgandhi 18:6a4db94011d3 109 while(SD->CTL & SDH_CTL_RIEN_Msk) {
sahilmgandhi 18:6a4db94011d3 110 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 111 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 112 }
sahilmgandhi 18:6a4db94011d3 113 }
sahilmgandhi 18:6a4db94011d3 114
sahilmgandhi 18:6a4db94011d3 115 if (_sd_uR7_CMD) {
sahilmgandhi 18:6a4db94011d3 116 if (((SD->RESP1 & 0xff) != 0x55) && ((SD->RESP0 & 0xf) != 0x01)) {
sahilmgandhi 18:6a4db94011d3 117 _sd_uR7_CMD = 0;
sahilmgandhi 18:6a4db94011d3 118 return SD_CMD8_ERROR;
sahilmgandhi 18:6a4db94011d3 119 }
sahilmgandhi 18:6a4db94011d3 120 }
sahilmgandhi 18:6a4db94011d3 121
sahilmgandhi 18:6a4db94011d3 122 if (!_sd_uR3_CMD) {
sahilmgandhi 18:6a4db94011d3 123 if (SD->INTSTS & SDH_INTSTS_CRC7_Msk) // check CRC7
sahilmgandhi 18:6a4db94011d3 124 return Successful;
sahilmgandhi 18:6a4db94011d3 125 else {
sahilmgandhi 18:6a4db94011d3 126 return SD_CRC7_ERROR;
sahilmgandhi 18:6a4db94011d3 127 }
sahilmgandhi 18:6a4db94011d3 128 } else { // ignore CRC error for R3 case
sahilmgandhi 18:6a4db94011d3 129 _sd_uR3_CMD = 0;
sahilmgandhi 18:6a4db94011d3 130 SD->INTSTS = SDH_INTSTS_CRCIF_Msk;
sahilmgandhi 18:6a4db94011d3 131 return Successful;
sahilmgandhi 18:6a4db94011d3 132 }
sahilmgandhi 18:6a4db94011d3 133 }
sahilmgandhi 18:6a4db94011d3 134
sahilmgandhi 18:6a4db94011d3 135
sahilmgandhi 18:6a4db94011d3 136 int SD_Swap32(int val)
sahilmgandhi 18:6a4db94011d3 137 {
sahilmgandhi 18:6a4db94011d3 138 #if 1
sahilmgandhi 18:6a4db94011d3 139 int buf;
sahilmgandhi 18:6a4db94011d3 140
sahilmgandhi 18:6a4db94011d3 141 buf = val;
sahilmgandhi 18:6a4db94011d3 142 val <<= 24;
sahilmgandhi 18:6a4db94011d3 143 val |= (buf<<8)&0xff0000;
sahilmgandhi 18:6a4db94011d3 144 val |= (buf>>8)&0xff00;
sahilmgandhi 18:6a4db94011d3 145 val |= (buf>>24)&0xff;
sahilmgandhi 18:6a4db94011d3 146 return val;
sahilmgandhi 18:6a4db94011d3 147
sahilmgandhi 18:6a4db94011d3 148 #else
sahilmgandhi 18:6a4db94011d3 149 return ((val<<24) | ((val<<8)&0xff0000) | ((val>>8)&0xff00) | (val>>24));
sahilmgandhi 18:6a4db94011d3 150 #endif
sahilmgandhi 18:6a4db94011d3 151 }
sahilmgandhi 18:6a4db94011d3 152
sahilmgandhi 18:6a4db94011d3 153 // Get 16 bytes CID or CSD
sahilmgandhi 18:6a4db94011d3 154 int SD_SDCmdAndRsp2(SD_INFO_T *pSD, uint8_t ucCmd, uint32_t uArg, uint32_t *puR2ptr)
sahilmgandhi 18:6a4db94011d3 155 {
sahilmgandhi 18:6a4db94011d3 156 unsigned int i, buf;
sahilmgandhi 18:6a4db94011d3 157 unsigned int tmpBuf[5];
sahilmgandhi 18:6a4db94011d3 158
sahilmgandhi 18:6a4db94011d3 159 SD->CMDARG = uArg;
sahilmgandhi 18:6a4db94011d3 160 buf = (SD->CTL&(~SDH_CTL_CMDCODE_Msk))|(ucCmd << 8)|(SDH_CTL_COEN_Msk | SDH_CTL_R2EN_Msk);
sahilmgandhi 18:6a4db94011d3 161 SD->CTL = buf;
sahilmgandhi 18:6a4db94011d3 162
sahilmgandhi 18:6a4db94011d3 163 while(SD->CTL & SDH_CTL_R2EN_Msk) {
sahilmgandhi 18:6a4db94011d3 164 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 165 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 166 }
sahilmgandhi 18:6a4db94011d3 167
sahilmgandhi 18:6a4db94011d3 168 if (SD->INTSTS & SDH_INTSTS_CRC7_Msk) {
sahilmgandhi 18:6a4db94011d3 169 for (i=0; i<5; i++) {
sahilmgandhi 18:6a4db94011d3 170 tmpBuf[i] = SD_Swap32(*(int*)(SD_BASE+i*4));
sahilmgandhi 18:6a4db94011d3 171 }
sahilmgandhi 18:6a4db94011d3 172 for (i=0; i<4; i++)
sahilmgandhi 18:6a4db94011d3 173 *puR2ptr++ = ((tmpBuf[i] & 0x00ffffff)<<8) | ((tmpBuf[i+1] & 0xff000000)>>24);
sahilmgandhi 18:6a4db94011d3 174 return Successful;
sahilmgandhi 18:6a4db94011d3 175 } else
sahilmgandhi 18:6a4db94011d3 176 return SD_CRC7_ERROR;
sahilmgandhi 18:6a4db94011d3 177 }
sahilmgandhi 18:6a4db94011d3 178
sahilmgandhi 18:6a4db94011d3 179
sahilmgandhi 18:6a4db94011d3 180 int SD_SDCmdAndRspDataIn(SD_INFO_T *pSD, uint8_t ucCmd, uint32_t uArg)
sahilmgandhi 18:6a4db94011d3 181 {
sahilmgandhi 18:6a4db94011d3 182 volatile int buf;
sahilmgandhi 18:6a4db94011d3 183
sahilmgandhi 18:6a4db94011d3 184 SD->CMDARG = uArg;
sahilmgandhi 18:6a4db94011d3 185 buf = (SD->CTL&(~SDH_CTL_CMDCODE_Msk))|(ucCmd << 8)|
sahilmgandhi 18:6a4db94011d3 186 (SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DIEN_Msk);
sahilmgandhi 18:6a4db94011d3 187
sahilmgandhi 18:6a4db94011d3 188 SD->CTL = buf;
sahilmgandhi 18:6a4db94011d3 189
sahilmgandhi 18:6a4db94011d3 190 while (SD->CTL & SDH_CTL_RIEN_Msk) {
sahilmgandhi 18:6a4db94011d3 191 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 192 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 193 }
sahilmgandhi 18:6a4db94011d3 194
sahilmgandhi 18:6a4db94011d3 195 while (SD->CTL & SDH_CTL_DIEN_Msk) {
sahilmgandhi 18:6a4db94011d3 196 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 197 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 198 }
sahilmgandhi 18:6a4db94011d3 199
sahilmgandhi 18:6a4db94011d3 200 if (!(SD->INTSTS & SDH_INTSTS_CRC7_Msk)) { // check CRC7
sahilmgandhi 18:6a4db94011d3 201 return SD_CRC7_ERROR;
sahilmgandhi 18:6a4db94011d3 202 }
sahilmgandhi 18:6a4db94011d3 203
sahilmgandhi 18:6a4db94011d3 204 if (!(SD->INTSTS & SDH_INTSTS_CRC16_Msk)) { // check CRC16
sahilmgandhi 18:6a4db94011d3 205 return SD_CRC16_ERROR;
sahilmgandhi 18:6a4db94011d3 206 }
sahilmgandhi 18:6a4db94011d3 207 return Successful;
sahilmgandhi 18:6a4db94011d3 208 }
sahilmgandhi 18:6a4db94011d3 209
sahilmgandhi 18:6a4db94011d3 210 // there are 8 bits for divider0, maximum is 256
sahilmgandhi 18:6a4db94011d3 211 #define SD_CLK_DIV0_MAX 256
sahilmgandhi 18:6a4db94011d3 212
sahilmgandhi 18:6a4db94011d3 213 void SD_Set_clock(uint32_t sd_clock_khz)
sahilmgandhi 18:6a4db94011d3 214 {
sahilmgandhi 18:6a4db94011d3 215 uint32_t rate, div1, i;
sahilmgandhi 18:6a4db94011d3 216 uint32_t u32SD_ClkSrc;
sahilmgandhi 18:6a4db94011d3 217
sahilmgandhi 18:6a4db94011d3 218 if(sd_clock_khz >= 24000) {
sahilmgandhi 18:6a4db94011d3 219 sd_clock_khz = 24000;
sahilmgandhi 18:6a4db94011d3 220 }
sahilmgandhi 18:6a4db94011d3 221
sahilmgandhi 18:6a4db94011d3 222 u32SD_ClkSrc = (CLK->CLKSEL0 & CLK_CLKSEL0_SDHSEL_Msk);
sahilmgandhi 18:6a4db94011d3 223
sahilmgandhi 18:6a4db94011d3 224 if(u32SD_ClkSrc == CLK_CLKSEL0_SDHSEL_HXT)
sahilmgandhi 18:6a4db94011d3 225 _sd_ReferenceClock = (CLK_GetHXTFreq() / 1000);
sahilmgandhi 18:6a4db94011d3 226 else if(u32SD_ClkSrc == CLK_CLKSEL0_SDHSEL_HIRC)
sahilmgandhi 18:6a4db94011d3 227 _sd_ReferenceClock = (__HIRC / 1000);
sahilmgandhi 18:6a4db94011d3 228 else if(u32SD_ClkSrc == CLK_CLKSEL0_SDHSEL_PLL)
sahilmgandhi 18:6a4db94011d3 229 _sd_ReferenceClock = (CLK_GetPLLClockFreq() / 1000);
sahilmgandhi 18:6a4db94011d3 230 else if(u32SD_ClkSrc == CLK_CLKSEL0_SDHSEL_HCLK)
sahilmgandhi 18:6a4db94011d3 231 _sd_ReferenceClock = (CLK_GetHCLKFreq() / 1000);
sahilmgandhi 18:6a4db94011d3 232
sahilmgandhi 18:6a4db94011d3 233 rate = _sd_ReferenceClock / sd_clock_khz;
sahilmgandhi 18:6a4db94011d3 234
sahilmgandhi 18:6a4db94011d3 235 // choose slower clock if system clock cannot divisible by wanted clock
sahilmgandhi 18:6a4db94011d3 236 if (_sd_ReferenceClock % sd_clock_khz != 0)
sahilmgandhi 18:6a4db94011d3 237 rate++;
sahilmgandhi 18:6a4db94011d3 238
sahilmgandhi 18:6a4db94011d3 239 if(rate >= SD_CLK_DIV0_MAX) {
sahilmgandhi 18:6a4db94011d3 240 rate = SD_CLK_DIV0_MAX;
sahilmgandhi 18:6a4db94011d3 241 }
sahilmgandhi 18:6a4db94011d3 242
sahilmgandhi 18:6a4db94011d3 243 //--- calculate the second divider CLKDIV0[SDHOST_N]
sahilmgandhi 18:6a4db94011d3 244 div1 = ((rate -1) & 0xFF);
sahilmgandhi 18:6a4db94011d3 245
sahilmgandhi 18:6a4db94011d3 246 //--- setup register
sahilmgandhi 18:6a4db94011d3 247 CLK->CLKDIV0 &= ~CLK_CLKDIV0_SDHDIV_Msk;
sahilmgandhi 18:6a4db94011d3 248 CLK->CLKDIV0 |= (div1 << CLK_CLKDIV0_SDHDIV_Pos);
sahilmgandhi 18:6a4db94011d3 249
sahilmgandhi 18:6a4db94011d3 250 for(i=0; i<1000; i++); // waiting for clock become stable
sahilmgandhi 18:6a4db94011d3 251 return;
sahilmgandhi 18:6a4db94011d3 252 }
sahilmgandhi 18:6a4db94011d3 253
sahilmgandhi 18:6a4db94011d3 254 void SD_CardSelect(int cardSel)
sahilmgandhi 18:6a4db94011d3 255 {
sahilmgandhi 18:6a4db94011d3 256 if(cardSel == 0) {
sahilmgandhi 18:6a4db94011d3 257 SD->CTL |= (SD->CTL & ~SDH_CTL_SDPORT_Msk);
sahilmgandhi 18:6a4db94011d3 258 } else if(cardSel == 1) {
sahilmgandhi 18:6a4db94011d3 259 SD->CTL |= ((SD->CTL & ~SDH_CTL_SDPORT_Msk) | (1 << SDH_CTL_SDPORT_Pos));
sahilmgandhi 18:6a4db94011d3 260 }
sahilmgandhi 18:6a4db94011d3 261 }
sahilmgandhi 18:6a4db94011d3 262
sahilmgandhi 18:6a4db94011d3 263 uint32_t SD_CardDetection(uint32_t u32CardNum)
sahilmgandhi 18:6a4db94011d3 264 {
sahilmgandhi 18:6a4db94011d3 265 uint32_t i;
sahilmgandhi 18:6a4db94011d3 266
sahilmgandhi 18:6a4db94011d3 267 if (u32CardNum == SD_PORT0) {
sahilmgandhi 18:6a4db94011d3 268 if(SD->INTEN & SDH_INTEN_CDSRC0_Msk) { // Card detect pin from GPIO
sahilmgandhi 18:6a4db94011d3 269 if(SD->INTSTS & SDH_INTSTS_CDSTS0_Msk) { // Card remove
sahilmgandhi 18:6a4db94011d3 270 SD0.IsCardInsert = FALSE;
sahilmgandhi 18:6a4db94011d3 271 return FALSE;
sahilmgandhi 18:6a4db94011d3 272 } else
sahilmgandhi 18:6a4db94011d3 273 SD0.IsCardInsert = TRUE;
sahilmgandhi 18:6a4db94011d3 274 } else if(!(SD->INTEN & SDH_INTEN_CDSRC0_Msk)) {
sahilmgandhi 18:6a4db94011d3 275 SD->CTL |= SDH_CTL_CLKKEEP0_Msk;
sahilmgandhi 18:6a4db94011d3 276 for(i= 0; i < 5000; i++);
sahilmgandhi 18:6a4db94011d3 277
sahilmgandhi 18:6a4db94011d3 278 if(SD->INTSTS & SDH_INTSTS_CDSTS0_Msk) // Card insert
sahilmgandhi 18:6a4db94011d3 279 SD0.IsCardInsert = TRUE;
sahilmgandhi 18:6a4db94011d3 280 else {
sahilmgandhi 18:6a4db94011d3 281 SD0.IsCardInsert = FALSE;
sahilmgandhi 18:6a4db94011d3 282 return FALSE;
sahilmgandhi 18:6a4db94011d3 283 }
sahilmgandhi 18:6a4db94011d3 284
sahilmgandhi 18:6a4db94011d3 285 SD->CTL &= ~SDH_CTL_CLKKEEP0_Msk;
sahilmgandhi 18:6a4db94011d3 286 }
sahilmgandhi 18:6a4db94011d3 287
sahilmgandhi 18:6a4db94011d3 288 } else if (u32CardNum == SD_PORT1) {
sahilmgandhi 18:6a4db94011d3 289 if(SD->INTEN & SDH_INTEN_CDSRC1_Msk) { // Card detect pin from GPIO
sahilmgandhi 18:6a4db94011d3 290 if(SD->INTSTS & SDH_INTSTS_CDSTS1_Msk) { // Card remove
sahilmgandhi 18:6a4db94011d3 291 SD1.IsCardInsert = FALSE;
sahilmgandhi 18:6a4db94011d3 292 return FALSE;
sahilmgandhi 18:6a4db94011d3 293 } else
sahilmgandhi 18:6a4db94011d3 294 SD1.IsCardInsert = TRUE;
sahilmgandhi 18:6a4db94011d3 295 } else if(!(SD->INTEN & SDH_INTEN_CDSRC1_Msk)) {
sahilmgandhi 18:6a4db94011d3 296 SD->CTL |= SDH_CTL_CLKKEEP1_Msk;
sahilmgandhi 18:6a4db94011d3 297 for(i= 0; i < 5000; i++);
sahilmgandhi 18:6a4db94011d3 298
sahilmgandhi 18:6a4db94011d3 299 if(SD->INTSTS & SDH_INTSTS_CDSTS1_Msk) // Card insert
sahilmgandhi 18:6a4db94011d3 300 SD1.IsCardInsert = TRUE;
sahilmgandhi 18:6a4db94011d3 301 else {
sahilmgandhi 18:6a4db94011d3 302 SD1.IsCardInsert = FALSE;
sahilmgandhi 18:6a4db94011d3 303 return FALSE;
sahilmgandhi 18:6a4db94011d3 304 }
sahilmgandhi 18:6a4db94011d3 305
sahilmgandhi 18:6a4db94011d3 306 SD->CTL &= ~SDH_CTL_CLKKEEP1_Msk;
sahilmgandhi 18:6a4db94011d3 307 }
sahilmgandhi 18:6a4db94011d3 308
sahilmgandhi 18:6a4db94011d3 309 }
sahilmgandhi 18:6a4db94011d3 310
sahilmgandhi 18:6a4db94011d3 311 return TRUE;
sahilmgandhi 18:6a4db94011d3 312 }
sahilmgandhi 18:6a4db94011d3 313
sahilmgandhi 18:6a4db94011d3 314
sahilmgandhi 18:6a4db94011d3 315 // Initial
sahilmgandhi 18:6a4db94011d3 316 int SD_Init(SD_INFO_T *pSD)
sahilmgandhi 18:6a4db94011d3 317 {
sahilmgandhi 18:6a4db94011d3 318 int volatile i, status;
sahilmgandhi 18:6a4db94011d3 319 unsigned int resp;
sahilmgandhi 18:6a4db94011d3 320 unsigned int CIDBuffer[4];
sahilmgandhi 18:6a4db94011d3 321 unsigned int volatile u32CmdTimeOut;
sahilmgandhi 18:6a4db94011d3 322
sahilmgandhi 18:6a4db94011d3 323 // set the clock to 200KHz
sahilmgandhi 18:6a4db94011d3 324 //SD_Set_clock(200);
sahilmgandhi 18:6a4db94011d3 325 SD_Set_clock(100);
sahilmgandhi 18:6a4db94011d3 326
sahilmgandhi 18:6a4db94011d3 327 // power ON 74 clock
sahilmgandhi 18:6a4db94011d3 328 SD->CTL |= SDH_CTL_CLK74OEN_Msk;
sahilmgandhi 18:6a4db94011d3 329
sahilmgandhi 18:6a4db94011d3 330 while(SD->CTL & SDH_CTL_CLK74OEN_Msk) {
sahilmgandhi 18:6a4db94011d3 331 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 332 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 333 }
sahilmgandhi 18:6a4db94011d3 334
sahilmgandhi 18:6a4db94011d3 335 SD_SDCommand(pSD, 0, 0); // reset all cards
sahilmgandhi 18:6a4db94011d3 336 for (i=0x1000; i>0; i--);
sahilmgandhi 18:6a4db94011d3 337
sahilmgandhi 18:6a4db94011d3 338 // initial SDHC
sahilmgandhi 18:6a4db94011d3 339 _sd_uR7_CMD = 1;
sahilmgandhi 18:6a4db94011d3 340 //u32CmdTimeOut = 5000;
sahilmgandhi 18:6a4db94011d3 341 u32CmdTimeOut = 0xFFFFF;
sahilmgandhi 18:6a4db94011d3 342 //u32CmdTimeOut = 0;
sahilmgandhi 18:6a4db94011d3 343
sahilmgandhi 18:6a4db94011d3 344 i = SD_SDCmdAndRsp(pSD, 8, 0x00000155, u32CmdTimeOut);
sahilmgandhi 18:6a4db94011d3 345 if (i == Successful) {
sahilmgandhi 18:6a4db94011d3 346 // SD 2.0
sahilmgandhi 18:6a4db94011d3 347 SD_SDCmdAndRsp(pSD, 55, 0x00, u32CmdTimeOut);
sahilmgandhi 18:6a4db94011d3 348 _sd_uR3_CMD = 1;
sahilmgandhi 18:6a4db94011d3 349 SD_SDCmdAndRsp(pSD, 41, 0x40ff8000, u32CmdTimeOut); // 2.7v-3.6v
sahilmgandhi 18:6a4db94011d3 350 resp = SD->RESP0;
sahilmgandhi 18:6a4db94011d3 351
sahilmgandhi 18:6a4db94011d3 352 while (!(resp & 0x00800000)) { // check if card is ready
sahilmgandhi 18:6a4db94011d3 353 SD_SDCmdAndRsp(pSD, 55, 0x00, u32CmdTimeOut);
sahilmgandhi 18:6a4db94011d3 354 _sd_uR3_CMD = 1;
sahilmgandhi 18:6a4db94011d3 355 SD_SDCmdAndRsp(pSD, 41, 0x40ff8000, u32CmdTimeOut); // 3.0v-3.4v
sahilmgandhi 18:6a4db94011d3 356 resp = SD->RESP0;
sahilmgandhi 18:6a4db94011d3 357 }
sahilmgandhi 18:6a4db94011d3 358 if (resp & 0x00400000)
sahilmgandhi 18:6a4db94011d3 359 pSD->CardType = SD_TYPE_SD_HIGH;
sahilmgandhi 18:6a4db94011d3 360 else
sahilmgandhi 18:6a4db94011d3 361 pSD->CardType = SD_TYPE_SD_LOW;
sahilmgandhi 18:6a4db94011d3 362 } else {
sahilmgandhi 18:6a4db94011d3 363 // SD 1.1
sahilmgandhi 18:6a4db94011d3 364 SD_SDCommand(pSD, 0, 0); // reset all cards
sahilmgandhi 18:6a4db94011d3 365 for (i=0x100; i>0; i--);
sahilmgandhi 18:6a4db94011d3 366
sahilmgandhi 18:6a4db94011d3 367 i = SD_SDCmdAndRsp(pSD, 55, 0x00, u32CmdTimeOut);
sahilmgandhi 18:6a4db94011d3 368 if (i == 2) { // MMC memory
sahilmgandhi 18:6a4db94011d3 369
sahilmgandhi 18:6a4db94011d3 370 SD_SDCommand(pSD, 0, 0); // reset
sahilmgandhi 18:6a4db94011d3 371 for (i=0x100; i>0; i--);
sahilmgandhi 18:6a4db94011d3 372
sahilmgandhi 18:6a4db94011d3 373 _sd_uR3_CMD = 1;
sahilmgandhi 18:6a4db94011d3 374
sahilmgandhi 18:6a4db94011d3 375 if (SD_SDCmdAndRsp(pSD, 1, 0x40ff8000, u32CmdTimeOut) != 2) { // eMMC memory
sahilmgandhi 18:6a4db94011d3 376 resp = SD->RESP0;
sahilmgandhi 18:6a4db94011d3 377 while (!(resp & 0x00800000)) { // check if card is ready
sahilmgandhi 18:6a4db94011d3 378 _sd_uR3_CMD = 1;
sahilmgandhi 18:6a4db94011d3 379
sahilmgandhi 18:6a4db94011d3 380 SD_SDCmdAndRsp(pSD, 1, 0x40ff8000, u32CmdTimeOut); // high voltage
sahilmgandhi 18:6a4db94011d3 381 resp = SD->RESP0;
sahilmgandhi 18:6a4db94011d3 382 }
sahilmgandhi 18:6a4db94011d3 383
sahilmgandhi 18:6a4db94011d3 384 if(resp & 0x00400000)
sahilmgandhi 18:6a4db94011d3 385 pSD->CardType = SD_TYPE_EMMC;
sahilmgandhi 18:6a4db94011d3 386 else
sahilmgandhi 18:6a4db94011d3 387 pSD->CardType = SD_TYPE_MMC;
sahilmgandhi 18:6a4db94011d3 388 } else {
sahilmgandhi 18:6a4db94011d3 389 pSD->CardType = SD_TYPE_UNKNOWN;
sahilmgandhi 18:6a4db94011d3 390 return SD_ERR_DEVICE;
sahilmgandhi 18:6a4db94011d3 391 }
sahilmgandhi 18:6a4db94011d3 392 } else if (i == 0) { // SD Memory
sahilmgandhi 18:6a4db94011d3 393 _sd_uR3_CMD = 1;
sahilmgandhi 18:6a4db94011d3 394 SD_SDCmdAndRsp(pSD, 41, 0x00ff8000, u32CmdTimeOut); // 3.0v-3.4v
sahilmgandhi 18:6a4db94011d3 395 resp = SD->RESP0;
sahilmgandhi 18:6a4db94011d3 396 while (!(resp & 0x00800000)) { // check if card is ready
sahilmgandhi 18:6a4db94011d3 397 SD_SDCmdAndRsp(pSD, 55, 0x00,u32CmdTimeOut);
sahilmgandhi 18:6a4db94011d3 398 _sd_uR3_CMD = 1;
sahilmgandhi 18:6a4db94011d3 399 SD_SDCmdAndRsp(pSD, 41, 0x00ff8000, u32CmdTimeOut); // 3.0v-3.4v
sahilmgandhi 18:6a4db94011d3 400 resp = SD->RESP0;
sahilmgandhi 18:6a4db94011d3 401 }
sahilmgandhi 18:6a4db94011d3 402 pSD->CardType = SD_TYPE_SD_LOW;
sahilmgandhi 18:6a4db94011d3 403 } else {
sahilmgandhi 18:6a4db94011d3 404 pSD->CardType = SD_TYPE_UNKNOWN;
sahilmgandhi 18:6a4db94011d3 405 return SD_INIT_ERROR;
sahilmgandhi 18:6a4db94011d3 406 }
sahilmgandhi 18:6a4db94011d3 407 }
sahilmgandhi 18:6a4db94011d3 408
sahilmgandhi 18:6a4db94011d3 409 // CMD2, CMD3
sahilmgandhi 18:6a4db94011d3 410 if (pSD->CardType != SD_TYPE_UNKNOWN) {
sahilmgandhi 18:6a4db94011d3 411 SD_SDCmdAndRsp2(pSD, 2, 0x00, CIDBuffer);
sahilmgandhi 18:6a4db94011d3 412 if ((pSD->CardType == SD_TYPE_MMC) || (pSD->CardType == SD_TYPE_EMMC)) {
sahilmgandhi 18:6a4db94011d3 413 if ((status = SD_SDCmdAndRsp(pSD, 3, 0x10000, 0)) != Successful) // set RCA
sahilmgandhi 18:6a4db94011d3 414 return status;
sahilmgandhi 18:6a4db94011d3 415 pSD->RCA = 0x10000;
sahilmgandhi 18:6a4db94011d3 416 } else {
sahilmgandhi 18:6a4db94011d3 417 if ((status = SD_SDCmdAndRsp(pSD, 3, 0x00, 0)) != Successful) // get RCA
sahilmgandhi 18:6a4db94011d3 418 return status;
sahilmgandhi 18:6a4db94011d3 419 else
sahilmgandhi 18:6a4db94011d3 420 pSD->RCA = (SD->RESP0 << 8) & 0xffff0000;
sahilmgandhi 18:6a4db94011d3 421 }
sahilmgandhi 18:6a4db94011d3 422 }
sahilmgandhi 18:6a4db94011d3 423
sahilmgandhi 18:6a4db94011d3 424 return Successful;
sahilmgandhi 18:6a4db94011d3 425 }
sahilmgandhi 18:6a4db94011d3 426
sahilmgandhi 18:6a4db94011d3 427
sahilmgandhi 18:6a4db94011d3 428 int SD_SwitchToHighSpeed(SD_INFO_T *pSD)
sahilmgandhi 18:6a4db94011d3 429 {
sahilmgandhi 18:6a4db94011d3 430 int volatile status=0;
sahilmgandhi 18:6a4db94011d3 431 uint16_t current_comsumption, busy_status0;
sahilmgandhi 18:6a4db94011d3 432
sahilmgandhi 18:6a4db94011d3 433 SD->DMASA = (uint32_t)_sd_pSDHCBuffer; // set DMA transfer starting address
sahilmgandhi 18:6a4db94011d3 434 SD->BLEN = 63; // 512 bit
sahilmgandhi 18:6a4db94011d3 435
sahilmgandhi 18:6a4db94011d3 436 if ((status = SD_SDCmdAndRspDataIn(pSD, 6, 0x00ffff01)) != Successful)
sahilmgandhi 18:6a4db94011d3 437 return Fail;
sahilmgandhi 18:6a4db94011d3 438
sahilmgandhi 18:6a4db94011d3 439 current_comsumption = _sd_pSDHCBuffer[0]<<8 | _sd_pSDHCBuffer[1];
sahilmgandhi 18:6a4db94011d3 440 if (!current_comsumption)
sahilmgandhi 18:6a4db94011d3 441 return Fail;
sahilmgandhi 18:6a4db94011d3 442
sahilmgandhi 18:6a4db94011d3 443 busy_status0 = _sd_pSDHCBuffer[28]<<8 | _sd_pSDHCBuffer[29];
sahilmgandhi 18:6a4db94011d3 444
sahilmgandhi 18:6a4db94011d3 445 if (!busy_status0) { // function ready
sahilmgandhi 18:6a4db94011d3 446 SD->DMASA = (uint32_t)_sd_pSDHCBuffer; // set DMA transfer starting address
sahilmgandhi 18:6a4db94011d3 447 SD->BLEN = 63; // 512 bit
sahilmgandhi 18:6a4db94011d3 448
sahilmgandhi 18:6a4db94011d3 449 if ((status = SD_SDCmdAndRspDataIn(pSD, 6, 0x80ffff01)) != Successful)
sahilmgandhi 18:6a4db94011d3 450 return Fail;
sahilmgandhi 18:6a4db94011d3 451
sahilmgandhi 18:6a4db94011d3 452 // function change timing: 8 clocks
sahilmgandhi 18:6a4db94011d3 453 SD->CTL |= SDH_CTL_CLK8OEN_Msk;
sahilmgandhi 18:6a4db94011d3 454 while(SD->CTL & SDH_CTL_CLK8OEN_Msk);
sahilmgandhi 18:6a4db94011d3 455
sahilmgandhi 18:6a4db94011d3 456 current_comsumption = _sd_pSDHCBuffer[0]<<8 | _sd_pSDHCBuffer[1];
sahilmgandhi 18:6a4db94011d3 457 if (!current_comsumption)
sahilmgandhi 18:6a4db94011d3 458 return Fail;
sahilmgandhi 18:6a4db94011d3 459
sahilmgandhi 18:6a4db94011d3 460 return Successful;
sahilmgandhi 18:6a4db94011d3 461 } else
sahilmgandhi 18:6a4db94011d3 462 return Fail;
sahilmgandhi 18:6a4db94011d3 463 }
sahilmgandhi 18:6a4db94011d3 464
sahilmgandhi 18:6a4db94011d3 465
sahilmgandhi 18:6a4db94011d3 466 int SD_SelectCardType(SD_INFO_T *pSD)
sahilmgandhi 18:6a4db94011d3 467 {
sahilmgandhi 18:6a4db94011d3 468 int volatile status=0;
sahilmgandhi 18:6a4db94011d3 469 unsigned int arg;
sahilmgandhi 18:6a4db94011d3 470
sahilmgandhi 18:6a4db94011d3 471 if ((status = SD_SDCmdAndRsp(pSD, 7, pSD->RCA, 0)) != Successful)
sahilmgandhi 18:6a4db94011d3 472 return status;
sahilmgandhi 18:6a4db94011d3 473
sahilmgandhi 18:6a4db94011d3 474 SD_CheckRB();
sahilmgandhi 18:6a4db94011d3 475
sahilmgandhi 18:6a4db94011d3 476 // if SD card set 4bit
sahilmgandhi 18:6a4db94011d3 477 if (pSD->CardType == SD_TYPE_SD_HIGH) {
sahilmgandhi 18:6a4db94011d3 478 _sd_pSDHCBuffer = (uint8_t *)((uint32_t)_sd_ucSDHCBuffer);
sahilmgandhi 18:6a4db94011d3 479 SD->DMASA = (uint32_t)_sd_pSDHCBuffer; // set DMA transfer starting address
sahilmgandhi 18:6a4db94011d3 480 SD->BLEN = 0x07; // 64 bit
sahilmgandhi 18:6a4db94011d3 481
sahilmgandhi 18:6a4db94011d3 482 if ((status = SD_SDCmdAndRsp(pSD, 55, pSD->RCA, 0)) != Successful)
sahilmgandhi 18:6a4db94011d3 483 return status;
sahilmgandhi 18:6a4db94011d3 484 if ((status = SD_SDCmdAndRspDataIn(pSD, 51, 0x00)) != Successful)
sahilmgandhi 18:6a4db94011d3 485 return status;
sahilmgandhi 18:6a4db94011d3 486
sahilmgandhi 18:6a4db94011d3 487 if ((_sd_ucSDHCBuffer[0] & 0xf) == 0x2) {
sahilmgandhi 18:6a4db94011d3 488 status = SD_SwitchToHighSpeed(pSD);
sahilmgandhi 18:6a4db94011d3 489 if (status == Successful) {
sahilmgandhi 18:6a4db94011d3 490 /* divider */
sahilmgandhi 18:6a4db94011d3 491 SD_Set_clock(SDHC_FREQ);
sahilmgandhi 18:6a4db94011d3 492 }
sahilmgandhi 18:6a4db94011d3 493 }
sahilmgandhi 18:6a4db94011d3 494
sahilmgandhi 18:6a4db94011d3 495 if ((status = SD_SDCmdAndRsp(pSD, 55, pSD->RCA, 0)) != Successful)
sahilmgandhi 18:6a4db94011d3 496 return status;
sahilmgandhi 18:6a4db94011d3 497 if ((status = SD_SDCmdAndRsp(pSD, 6, 0x02, 0)) != Successful) // set bus width
sahilmgandhi 18:6a4db94011d3 498 return status;
sahilmgandhi 18:6a4db94011d3 499
sahilmgandhi 18:6a4db94011d3 500 SD->CTL |= SDH_CTL_DBW_Msk;
sahilmgandhi 18:6a4db94011d3 501 } else if (pSD->CardType == SD_TYPE_SD_LOW) {
sahilmgandhi 18:6a4db94011d3 502 _sd_pSDHCBuffer = (uint8_t *)((uint32_t)_sd_ucSDHCBuffer);
sahilmgandhi 18:6a4db94011d3 503 SD->DMASA = (uint32_t) _sd_pSDHCBuffer; // set DMA transfer starting address
sahilmgandhi 18:6a4db94011d3 504 SD->BLEN = 0x07; // 64 bit
sahilmgandhi 18:6a4db94011d3 505
sahilmgandhi 18:6a4db94011d3 506 if ((status = SD_SDCmdAndRsp(pSD, 55, pSD->RCA, 0)) != Successful)
sahilmgandhi 18:6a4db94011d3 507 return status;
sahilmgandhi 18:6a4db94011d3 508 if ((status = SD_SDCmdAndRspDataIn(pSD, 51, 0x00)) != Successful)
sahilmgandhi 18:6a4db94011d3 509 return status;
sahilmgandhi 18:6a4db94011d3 510
sahilmgandhi 18:6a4db94011d3 511 // set data bus width. ACMD6 for SD card, SDCR_DBW for host.
sahilmgandhi 18:6a4db94011d3 512 if ((status = SD_SDCmdAndRsp(pSD, 55, pSD->RCA, 0)) != Successful)
sahilmgandhi 18:6a4db94011d3 513 return status;
sahilmgandhi 18:6a4db94011d3 514
sahilmgandhi 18:6a4db94011d3 515 if ((status = SD_SDCmdAndRsp(pSD, 6, 0x02, 0)) != Successful) // set bus width
sahilmgandhi 18:6a4db94011d3 516 return status;
sahilmgandhi 18:6a4db94011d3 517
sahilmgandhi 18:6a4db94011d3 518 SD->CTL |= SDH_CTL_DBW_Msk;
sahilmgandhi 18:6a4db94011d3 519 } else if ((pSD->CardType == SD_TYPE_MMC) ||(pSD->CardType == SD_TYPE_EMMC)) {
sahilmgandhi 18:6a4db94011d3 520
sahilmgandhi 18:6a4db94011d3 521 if(pSD->CardType == SD_TYPE_MMC)
sahilmgandhi 18:6a4db94011d3 522 SD->CTL &= ~SDH_CTL_DBW_Msk;
sahilmgandhi 18:6a4db94011d3 523
sahilmgandhi 18:6a4db94011d3 524 //--- sent CMD6 to MMC card to set bus width to 4 bits mode
sahilmgandhi 18:6a4db94011d3 525 // set CMD6 argument Access field to 3, Index to 183, Value to 1 (4-bit mode)
sahilmgandhi 18:6a4db94011d3 526 arg = (3 << 24) | (183 << 16) | (1 << 8);
sahilmgandhi 18:6a4db94011d3 527 if ((status = SD_SDCmdAndRsp(pSD, 6, arg, 0)) != Successful)
sahilmgandhi 18:6a4db94011d3 528 return status;
sahilmgandhi 18:6a4db94011d3 529 SD_CheckRB();
sahilmgandhi 18:6a4db94011d3 530
sahilmgandhi 18:6a4db94011d3 531 SD->CTL |= SDH_CTL_DBW_Msk;; // set bus width to 4-bit mode for SD host controller
sahilmgandhi 18:6a4db94011d3 532
sahilmgandhi 18:6a4db94011d3 533 }
sahilmgandhi 18:6a4db94011d3 534
sahilmgandhi 18:6a4db94011d3 535 if ((status = SD_SDCmdAndRsp(pSD, 16, SD_BLOCK_SIZE, 0)) != Successful) // set block length
sahilmgandhi 18:6a4db94011d3 536 return status;
sahilmgandhi 18:6a4db94011d3 537 SD->BLEN = SD_BLOCK_SIZE - 1; // set the block size
sahilmgandhi 18:6a4db94011d3 538
sahilmgandhi 18:6a4db94011d3 539 SD_SDCommand(pSD, 7, 0);
sahilmgandhi 18:6a4db94011d3 540 SD->CTL |= SDH_CTL_CLK8OEN_Msk;
sahilmgandhi 18:6a4db94011d3 541 while(SD->CTL & SDH_CTL_CLK8OEN_Msk);
sahilmgandhi 18:6a4db94011d3 542
sahilmgandhi 18:6a4db94011d3 543 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 544 SD->INTEN |= SDH_INTEN_BLKDIEN_Msk;
sahilmgandhi 18:6a4db94011d3 545 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 546
sahilmgandhi 18:6a4db94011d3 547 return Successful;
sahilmgandhi 18:6a4db94011d3 548 }
sahilmgandhi 18:6a4db94011d3 549
sahilmgandhi 18:6a4db94011d3 550 void SD_Get_SD_info(SD_INFO_T *pSD, DISK_DATA_T *_info)
sahilmgandhi 18:6a4db94011d3 551 {
sahilmgandhi 18:6a4db94011d3 552 unsigned int R_LEN, C_Size, MULT, size;
sahilmgandhi 18:6a4db94011d3 553 unsigned int Buffer[4];
sahilmgandhi 18:6a4db94011d3 554 unsigned char *ptr;
sahilmgandhi 18:6a4db94011d3 555
sahilmgandhi 18:6a4db94011d3 556 SD_SDCmdAndRsp2(pSD, 9, pSD->RCA, Buffer);
sahilmgandhi 18:6a4db94011d3 557
sahilmgandhi 18:6a4db94011d3 558 if ((pSD->CardType == SD_TYPE_MMC) || (pSD->CardType == SD_TYPE_EMMC)) {
sahilmgandhi 18:6a4db94011d3 559 // for MMC/eMMC card
sahilmgandhi 18:6a4db94011d3 560 if ((Buffer[0] & 0xc0000000) == 0xc0000000) {
sahilmgandhi 18:6a4db94011d3 561 // CSD_STRUCTURE [127:126] is 3
sahilmgandhi 18:6a4db94011d3 562 // CSD version depend on EXT_CSD register in eMMC v4.4 for card size > 2GB
sahilmgandhi 18:6a4db94011d3 563 SD_SDCmdAndRsp(pSD, 7, pSD->RCA, 0);
sahilmgandhi 18:6a4db94011d3 564
sahilmgandhi 18:6a4db94011d3 565 ptr = (uint8_t *)((uint32_t)_sd_ucSDHCBuffer );
sahilmgandhi 18:6a4db94011d3 566 SD->DMASA = (uint32_t)ptr; // set DMA transfer starting address
sahilmgandhi 18:6a4db94011d3 567 SD->BLEN = 511; // read 512 bytes for EXT_CSD
sahilmgandhi 18:6a4db94011d3 568
sahilmgandhi 18:6a4db94011d3 569 if (SD_SDCmdAndRspDataIn(pSD, 8, 0x00) != Successful)
sahilmgandhi 18:6a4db94011d3 570 return;
sahilmgandhi 18:6a4db94011d3 571
sahilmgandhi 18:6a4db94011d3 572 SD_SDCommand(pSD, 7, 0);
sahilmgandhi 18:6a4db94011d3 573 SD->CTL |= SDH_CTL_CLK8OEN_Msk;
sahilmgandhi 18:6a4db94011d3 574 while(SD->CTL & SDH_CTL_CLK8OEN_Msk);
sahilmgandhi 18:6a4db94011d3 575
sahilmgandhi 18:6a4db94011d3 576 _info->totalSectorN = (*(uint32_t *)(ptr+212));
sahilmgandhi 18:6a4db94011d3 577 _info->diskSize = _info->totalSectorN / 2;
sahilmgandhi 18:6a4db94011d3 578 } else {
sahilmgandhi 18:6a4db94011d3 579 // CSD version v1.0/1.1/1.2 in eMMC v4.4 spec for card size <= 2GB
sahilmgandhi 18:6a4db94011d3 580 R_LEN = (Buffer[1] & 0x000f0000) >> 16;
sahilmgandhi 18:6a4db94011d3 581 C_Size = ((Buffer[1] & 0x000003ff) << 2) | ((Buffer[2] & 0xc0000000) >> 30);
sahilmgandhi 18:6a4db94011d3 582 MULT = (Buffer[2] & 0x00038000) >> 15;
sahilmgandhi 18:6a4db94011d3 583 size = (C_Size+1) * (1<<(MULT+2)) * (1<<R_LEN);
sahilmgandhi 18:6a4db94011d3 584
sahilmgandhi 18:6a4db94011d3 585 _info->diskSize = size / 1024;
sahilmgandhi 18:6a4db94011d3 586 _info->totalSectorN = size / 512;
sahilmgandhi 18:6a4db94011d3 587 }
sahilmgandhi 18:6a4db94011d3 588 } else {
sahilmgandhi 18:6a4db94011d3 589 if (Buffer[0] & 0xc0000000) {
sahilmgandhi 18:6a4db94011d3 590 C_Size = ((Buffer[1] & 0x0000003f) << 16) | ((Buffer[2] & 0xffff0000) >> 16);
sahilmgandhi 18:6a4db94011d3 591 size = (C_Size+1) * 512; // Kbytes
sahilmgandhi 18:6a4db94011d3 592
sahilmgandhi 18:6a4db94011d3 593 _info->diskSize = size;
sahilmgandhi 18:6a4db94011d3 594 _info->totalSectorN = size << 1;
sahilmgandhi 18:6a4db94011d3 595 } else {
sahilmgandhi 18:6a4db94011d3 596 R_LEN = (Buffer[1] & 0x000f0000) >> 16;
sahilmgandhi 18:6a4db94011d3 597 C_Size = ((Buffer[1] & 0x000003ff) << 2) | ((Buffer[2] & 0xc0000000) >> 30);
sahilmgandhi 18:6a4db94011d3 598 MULT = (Buffer[2] & 0x00038000) >> 15;
sahilmgandhi 18:6a4db94011d3 599 size = (C_Size+1) * (1<<(MULT+2)) * (1<<R_LEN);
sahilmgandhi 18:6a4db94011d3 600
sahilmgandhi 18:6a4db94011d3 601 _info->diskSize = size / 1024;
sahilmgandhi 18:6a4db94011d3 602 _info->totalSectorN = size / 512;
sahilmgandhi 18:6a4db94011d3 603 }
sahilmgandhi 18:6a4db94011d3 604 }
sahilmgandhi 18:6a4db94011d3 605
sahilmgandhi 18:6a4db94011d3 606 _info->sectorSize = 512;
sahilmgandhi 18:6a4db94011d3 607 }
sahilmgandhi 18:6a4db94011d3 608
sahilmgandhi 18:6a4db94011d3 609 int SD_ChipErase(SD_INFO_T *pSD, DISK_DATA_T *_info)
sahilmgandhi 18:6a4db94011d3 610 {
sahilmgandhi 18:6a4db94011d3 611 int status=0;
sahilmgandhi 18:6a4db94011d3 612
sahilmgandhi 18:6a4db94011d3 613 status = SD_SDCmdAndRsp(pSD, 32, 512, 6000);
sahilmgandhi 18:6a4db94011d3 614 if (status < 0) {
sahilmgandhi 18:6a4db94011d3 615 return status;
sahilmgandhi 18:6a4db94011d3 616 }
sahilmgandhi 18:6a4db94011d3 617 status = SD_SDCmdAndRsp(pSD, 33, _info->totalSectorN*512, 6000);
sahilmgandhi 18:6a4db94011d3 618 if (status < 0) {
sahilmgandhi 18:6a4db94011d3 619 return status;
sahilmgandhi 18:6a4db94011d3 620 }
sahilmgandhi 18:6a4db94011d3 621 status = SD_SDCmdAndRsp(pSD, 38, 0, 6000);
sahilmgandhi 18:6a4db94011d3 622 if (status < 0) {
sahilmgandhi 18:6a4db94011d3 623 return status;
sahilmgandhi 18:6a4db94011d3 624 }
sahilmgandhi 18:6a4db94011d3 625 SD_CheckRB();
sahilmgandhi 18:6a4db94011d3 626
sahilmgandhi 18:6a4db94011d3 627 return 0;
sahilmgandhi 18:6a4db94011d3 628 }
sahilmgandhi 18:6a4db94011d3 629
sahilmgandhi 18:6a4db94011d3 630 /// @endcond HIDDEN_SYMBOLS
sahilmgandhi 18:6a4db94011d3 631
sahilmgandhi 18:6a4db94011d3 632
sahilmgandhi 18:6a4db94011d3 633 /**
sahilmgandhi 18:6a4db94011d3 634 * @brief This function use to reset SD function and select card detection source and pin.
sahilmgandhi 18:6a4db94011d3 635 *
sahilmgandhi 18:6a4db94011d3 636 * @param[in] u32CardDetSrc Select card detection source from SD0 or SD1. ( \ref SD_PORT0 / \ref SD_PORT1) \n
sahilmgandhi 18:6a4db94011d3 637 * And also select card detection pin from GPIO or DAT3 pin. ( \ref CardDetect_From_GPIO / \ref CardDetect_From_DAT3)
sahilmgandhi 18:6a4db94011d3 638 *
sahilmgandhi 18:6a4db94011d3 639 * @return None
sahilmgandhi 18:6a4db94011d3 640 */
sahilmgandhi 18:6a4db94011d3 641 void SD_Open(uint32_t u32CardDetSrc)
sahilmgandhi 18:6a4db94011d3 642 {
sahilmgandhi 18:6a4db94011d3 643 // Enable SD Card Host Controller operation.
sahilmgandhi 18:6a4db94011d3 644 //CLK->AHBCLK |= CLK_AHBCLK_SDHCKEN_Msk;
sahilmgandhi 18:6a4db94011d3 645
sahilmgandhi 18:6a4db94011d3 646 // enable DMAC
sahilmgandhi 18:6a4db94011d3 647 SD->DMACTL = SDH_DMACTL_DMARST_Msk;
sahilmgandhi 18:6a4db94011d3 648 while(SD->DMACTL & SDH_DMACTL_DMARST_Msk);
sahilmgandhi 18:6a4db94011d3 649
sahilmgandhi 18:6a4db94011d3 650 SD->DMACTL = SDH_DMACTL_DMAEN_Msk;
sahilmgandhi 18:6a4db94011d3 651
sahilmgandhi 18:6a4db94011d3 652 //Reset FMI
sahilmgandhi 18:6a4db94011d3 653 SD->GCTL = SDH_GCTL_GCTLRST_Msk; // Start reset FMI controller.
sahilmgandhi 18:6a4db94011d3 654 while(SD->GCTL & SDH_GCTL_GCTLRST_Msk);
sahilmgandhi 18:6a4db94011d3 655
sahilmgandhi 18:6a4db94011d3 656
sahilmgandhi 18:6a4db94011d3 657 //#ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 658 // NVIC_EnableIRQ(SD_IRQn);
sahilmgandhi 18:6a4db94011d3 659 //#endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 660
sahilmgandhi 18:6a4db94011d3 661 // enable SD
sahilmgandhi 18:6a4db94011d3 662 SD->GCTL = SDH_GCTL_SDEN_Msk;
sahilmgandhi 18:6a4db94011d3 663
sahilmgandhi 18:6a4db94011d3 664 if(u32CardDetSrc & SD_PORT0) {
sahilmgandhi 18:6a4db94011d3 665 SD->CTL |= (SD->CTL & ~SDH_CTL_SDPORT_Msk);
sahilmgandhi 18:6a4db94011d3 666
sahilmgandhi 18:6a4db94011d3 667 if(u32CardDetSrc & CardDetect_From_DAT3) {
sahilmgandhi 18:6a4db94011d3 668 SD->INTEN &= ~SDH_INTEN_CDSRC0_Msk;
sahilmgandhi 18:6a4db94011d3 669 } else {
sahilmgandhi 18:6a4db94011d3 670 SD->INTEN |= SDH_INTEN_CDSRC0_Msk;
sahilmgandhi 18:6a4db94011d3 671 }
sahilmgandhi 18:6a4db94011d3 672 } else if(u32CardDetSrc & SD_PORT1) {
sahilmgandhi 18:6a4db94011d3 673 SD->CTL |= ((SD->CTL & ~SDH_CTL_SDPORT_Msk) | (1 << SDH_CTL_SDPORT_Pos));
sahilmgandhi 18:6a4db94011d3 674
sahilmgandhi 18:6a4db94011d3 675 if(u32CardDetSrc & CardDetect_From_DAT3) {
sahilmgandhi 18:6a4db94011d3 676 SD->INTEN &= ~SDH_INTEN_CDSRC1_Msk;
sahilmgandhi 18:6a4db94011d3 677 } else {
sahilmgandhi 18:6a4db94011d3 678 SD->INTEN |= SDH_INTEN_CDSRC1_Msk;
sahilmgandhi 18:6a4db94011d3 679 }
sahilmgandhi 18:6a4db94011d3 680 }
sahilmgandhi 18:6a4db94011d3 681
sahilmgandhi 18:6a4db94011d3 682 SD->CTL |= SDH_CTL_CTLRST_Msk; // SD software reset
sahilmgandhi 18:6a4db94011d3 683 while(SD->CTL & SDH_CTL_CTLRST_Msk);
sahilmgandhi 18:6a4db94011d3 684
sahilmgandhi 18:6a4db94011d3 685 SD->CTL &= ~((0xFF) | (SDH_CTL_CLKKEEP1_Msk)); // disable SD clock output
sahilmgandhi 18:6a4db94011d3 686
sahilmgandhi 18:6a4db94011d3 687 if(u32CardDetSrc & SD_PORT0) {
sahilmgandhi 18:6a4db94011d3 688 memset(&SD0, 0, sizeof(SD_INFO_T));
sahilmgandhi 18:6a4db94011d3 689 } else if(u32CardDetSrc & SD_PORT1) {
sahilmgandhi 18:6a4db94011d3 690 memset(&SD1, 0, sizeof(SD_INFO_T));
sahilmgandhi 18:6a4db94011d3 691 }
sahilmgandhi 18:6a4db94011d3 692
sahilmgandhi 18:6a4db94011d3 693 }
sahilmgandhi 18:6a4db94011d3 694
sahilmgandhi 18:6a4db94011d3 695 /**
sahilmgandhi 18:6a4db94011d3 696 * @brief This function use to initial SD card.
sahilmgandhi 18:6a4db94011d3 697 *
sahilmgandhi 18:6a4db94011d3 698 * @param[in] u32CardNum Select initial SD0 or SD1. ( \ref SD_PORT0 / \ref SD_PORT1)
sahilmgandhi 18:6a4db94011d3 699 *
sahilmgandhi 18:6a4db94011d3 700 * @return None
sahilmgandhi 18:6a4db94011d3 701 */
sahilmgandhi 18:6a4db94011d3 702 void SD_Probe(uint32_t u32CardNum)
sahilmgandhi 18:6a4db94011d3 703 {
sahilmgandhi 18:6a4db94011d3 704 // Disable FMI/SD host interrupt
sahilmgandhi 18:6a4db94011d3 705 SD->GINTEN = 0;
sahilmgandhi 18:6a4db94011d3 706
sahilmgandhi 18:6a4db94011d3 707 SD->CTL &= ~SDH_CTL_SDNWR_Msk;
sahilmgandhi 18:6a4db94011d3 708 SD->CTL |= 0x09 << SDH_CTL_SDNWR_Pos; // set SDNWR = 9
sahilmgandhi 18:6a4db94011d3 709 SD->CTL &= ~SDH_CTL_BLKCNT_Msk;
sahilmgandhi 18:6a4db94011d3 710 SD->CTL |= 0x01 << SDH_CTL_BLKCNT_Pos; // set BLKCNT = 1
sahilmgandhi 18:6a4db94011d3 711 SD->CTL &= ~SDH_CTL_DBW_Msk; // SD 1-bit data bus
sahilmgandhi 18:6a4db94011d3 712
sahilmgandhi 18:6a4db94011d3 713 if(!(SD_CardDetection(u32CardNum)))
sahilmgandhi 18:6a4db94011d3 714 return;
sahilmgandhi 18:6a4db94011d3 715
sahilmgandhi 18:6a4db94011d3 716 if (u32CardNum == SD_PORT0) {
sahilmgandhi 18:6a4db94011d3 717 if (SD_Init(&SD0) < 0)
sahilmgandhi 18:6a4db94011d3 718 return;
sahilmgandhi 18:6a4db94011d3 719
sahilmgandhi 18:6a4db94011d3 720 /* divider */
sahilmgandhi 18:6a4db94011d3 721 if (SD0.CardType == SD_TYPE_MMC)
sahilmgandhi 18:6a4db94011d3 722 SD_Set_clock(20000);
sahilmgandhi 18:6a4db94011d3 723 else
sahilmgandhi 18:6a4db94011d3 724 SD_Set_clock(SD_FREQ);
sahilmgandhi 18:6a4db94011d3 725
sahilmgandhi 18:6a4db94011d3 726 SD_Get_SD_info(&SD0, &SD_DiskInfo0);
sahilmgandhi 18:6a4db94011d3 727
sahilmgandhi 18:6a4db94011d3 728 if (SD_SelectCardType(&SD0))
sahilmgandhi 18:6a4db94011d3 729 return;
sahilmgandhi 18:6a4db94011d3 730
sahilmgandhi 18:6a4db94011d3 731 sd0_ok = 1;
sahilmgandhi 18:6a4db94011d3 732 } else if (u32CardNum == SD_PORT1) {
sahilmgandhi 18:6a4db94011d3 733 if (SD_Init(&SD1) < 0)
sahilmgandhi 18:6a4db94011d3 734 return;
sahilmgandhi 18:6a4db94011d3 735
sahilmgandhi 18:6a4db94011d3 736 /* divider */
sahilmgandhi 18:6a4db94011d3 737 if (SD1.CardType == SD_TYPE_MMC)
sahilmgandhi 18:6a4db94011d3 738 SD_Set_clock(20000);
sahilmgandhi 18:6a4db94011d3 739 else
sahilmgandhi 18:6a4db94011d3 740 SD_Set_clock(SD_FREQ);
sahilmgandhi 18:6a4db94011d3 741
sahilmgandhi 18:6a4db94011d3 742 SD_Get_SD_info(&SD1, &SD_DiskInfo1);
sahilmgandhi 18:6a4db94011d3 743
sahilmgandhi 18:6a4db94011d3 744 if (SD_SelectCardType(&SD1))
sahilmgandhi 18:6a4db94011d3 745 return;
sahilmgandhi 18:6a4db94011d3 746
sahilmgandhi 18:6a4db94011d3 747 sd1_ok = 1;
sahilmgandhi 18:6a4db94011d3 748 }
sahilmgandhi 18:6a4db94011d3 749
sahilmgandhi 18:6a4db94011d3 750
sahilmgandhi 18:6a4db94011d3 751 }
sahilmgandhi 18:6a4db94011d3 752
sahilmgandhi 18:6a4db94011d3 753 /**
sahilmgandhi 18:6a4db94011d3 754 * @brief This function use to read data from SD card.
sahilmgandhi 18:6a4db94011d3 755 *
sahilmgandhi 18:6a4db94011d3 756 * @param[in] u32CardNum Select card: SD0 or SD1. ( \ref SD_PORT0 / \ref SD_PORT1)
sahilmgandhi 18:6a4db94011d3 757 * @param[out] pu8BufAddr The buffer to receive the data from SD card.
sahilmgandhi 18:6a4db94011d3 758 * @param[in] u32StartSec The start read sector address.
sahilmgandhi 18:6a4db94011d3 759 * @param[in] u32SecCount The the read sector number of data
sahilmgandhi 18:6a4db94011d3 760 *
sahilmgandhi 18:6a4db94011d3 761 * @return None
sahilmgandhi 18:6a4db94011d3 762 */
sahilmgandhi 18:6a4db94011d3 763 uint32_t SD_Read(uint32_t u32CardNum, uint8_t *pu8BufAddr, uint32_t u32StartSec, uint32_t u32SecCount)
sahilmgandhi 18:6a4db94011d3 764 {
sahilmgandhi 18:6a4db94011d3 765 char volatile bIsSendCmd = FALSE, buf;
sahilmgandhi 18:6a4db94011d3 766 unsigned int volatile reg;
sahilmgandhi 18:6a4db94011d3 767 int volatile i, loop, status;
sahilmgandhi 18:6a4db94011d3 768 uint32_t blksize = SD_BLOCK_SIZE;
sahilmgandhi 18:6a4db94011d3 769
sahilmgandhi 18:6a4db94011d3 770 SD_INFO_T *pSD;
sahilmgandhi 18:6a4db94011d3 771
sahilmgandhi 18:6a4db94011d3 772 if(u32CardNum == SD_PORT0)
sahilmgandhi 18:6a4db94011d3 773 pSD = &SD0;
sahilmgandhi 18:6a4db94011d3 774 else
sahilmgandhi 18:6a4db94011d3 775 pSD = &SD1;
sahilmgandhi 18:6a4db94011d3 776
sahilmgandhi 18:6a4db94011d3 777 //--- check input parameters
sahilmgandhi 18:6a4db94011d3 778 if (u32SecCount == 0) {
sahilmgandhi 18:6a4db94011d3 779 return SD_SELECT_ERROR;
sahilmgandhi 18:6a4db94011d3 780 }
sahilmgandhi 18:6a4db94011d3 781
sahilmgandhi 18:6a4db94011d3 782 if ((status = SD_SDCmdAndRsp(pSD, 7, pSD->RCA, 0)) != Successful)
sahilmgandhi 18:6a4db94011d3 783 return status;
sahilmgandhi 18:6a4db94011d3 784 SD_CheckRB();
sahilmgandhi 18:6a4db94011d3 785
sahilmgandhi 18:6a4db94011d3 786 SD->BLEN = blksize - 1; // the actual byte count is equal to (SDBLEN+1)
sahilmgandhi 18:6a4db94011d3 787
sahilmgandhi 18:6a4db94011d3 788 if ( (pSD->CardType == SD_TYPE_SD_HIGH) || (pSD->CardType == SD_TYPE_EMMC) )
sahilmgandhi 18:6a4db94011d3 789 SD->CMDARG = u32StartSec;
sahilmgandhi 18:6a4db94011d3 790 else
sahilmgandhi 18:6a4db94011d3 791 SD->CMDARG = u32StartSec * blksize;
sahilmgandhi 18:6a4db94011d3 792
sahilmgandhi 18:6a4db94011d3 793 SD->DMASA = (uint32_t)pu8BufAddr;
sahilmgandhi 18:6a4db94011d3 794
sahilmgandhi 18:6a4db94011d3 795 loop = u32SecCount / 255;
sahilmgandhi 18:6a4db94011d3 796 for (i=0; i<loop; i++) {
sahilmgandhi 18:6a4db94011d3 797 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 798 _sd_SDDataReady = FALSE;
sahilmgandhi 18:6a4db94011d3 799 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 800
sahilmgandhi 18:6a4db94011d3 801 reg = SD->CTL & ~SDH_CTL_CMDCODE_Msk;
sahilmgandhi 18:6a4db94011d3 802 reg = reg | 0xff0000; // set BLK_CNT to 255
sahilmgandhi 18:6a4db94011d3 803 if (bIsSendCmd == FALSE) {
sahilmgandhi 18:6a4db94011d3 804 SD->CTL = reg|(18<<8)|(SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DIEN_Msk);
sahilmgandhi 18:6a4db94011d3 805 bIsSendCmd = TRUE;
sahilmgandhi 18:6a4db94011d3 806 } else
sahilmgandhi 18:6a4db94011d3 807 SD->CTL = reg | SDH_CTL_DIEN_Msk;
sahilmgandhi 18:6a4db94011d3 808
sahilmgandhi 18:6a4db94011d3 809 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 810 while(!_sd_SDDataReady)
sahilmgandhi 18:6a4db94011d3 811 #else
sahilmgandhi 18:6a4db94011d3 812 while(1)
sahilmgandhi 18:6a4db94011d3 813 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 814 {
sahilmgandhi 18:6a4db94011d3 815 if(_sd_SDDataReady) break;
sahilmgandhi 18:6a4db94011d3 816
sahilmgandhi 18:6a4db94011d3 817 #ifndef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 818 if ((SD->INTSTS & SDH_INTSTS_BLKDIF_Msk) && (!(SD->CTL & SDH_CTL_DIEN_Msk))) {
sahilmgandhi 18:6a4db94011d3 819 SD->INTSTS = SDH_INTSTS_BLKDIF_Msk;
sahilmgandhi 18:6a4db94011d3 820 break;
sahilmgandhi 18:6a4db94011d3 821 }
sahilmgandhi 18:6a4db94011d3 822 #endif
sahilmgandhi 18:6a4db94011d3 823 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 824 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 825 }
sahilmgandhi 18:6a4db94011d3 826
sahilmgandhi 18:6a4db94011d3 827 if (!(SD->INTSTS & SDH_INTSTS_CRC7_Msk)) { // check CRC7
sahilmgandhi 18:6a4db94011d3 828 //printf("sdioSD_Read_in_blksize(): response error!\n");
sahilmgandhi 18:6a4db94011d3 829 return SD_CRC7_ERROR;
sahilmgandhi 18:6a4db94011d3 830 }
sahilmgandhi 18:6a4db94011d3 831
sahilmgandhi 18:6a4db94011d3 832 if (!(SD->INTSTS & SDH_INTSTS_CRC16_Msk)) { // check CRC16
sahilmgandhi 18:6a4db94011d3 833 //printf("sdioSD_Read_in_blksize() :read data error!\n");
sahilmgandhi 18:6a4db94011d3 834 return SD_CRC16_ERROR;
sahilmgandhi 18:6a4db94011d3 835 }
sahilmgandhi 18:6a4db94011d3 836 }
sahilmgandhi 18:6a4db94011d3 837
sahilmgandhi 18:6a4db94011d3 838 loop = u32SecCount % 255;
sahilmgandhi 18:6a4db94011d3 839 if (loop != 0) {
sahilmgandhi 18:6a4db94011d3 840 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 841 _sd_SDDataReady = FALSE;
sahilmgandhi 18:6a4db94011d3 842 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 843
sahilmgandhi 18:6a4db94011d3 844 reg = SD->CTL & (~SDH_CTL_CMDCODE_Msk);
sahilmgandhi 18:6a4db94011d3 845 reg = reg & (~SDH_CTL_BLKCNT_Msk);
sahilmgandhi 18:6a4db94011d3 846 reg |= (loop << 16); // setup SDCR_BLKCNT
sahilmgandhi 18:6a4db94011d3 847
sahilmgandhi 18:6a4db94011d3 848 if (bIsSendCmd == FALSE) {
sahilmgandhi 18:6a4db94011d3 849 SD->CTL = reg|(18<<8)|(SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DIEN_Msk);
sahilmgandhi 18:6a4db94011d3 850 bIsSendCmd = TRUE;
sahilmgandhi 18:6a4db94011d3 851 } else
sahilmgandhi 18:6a4db94011d3 852 SD->CTL = reg | SDH_CTL_DIEN_Msk;
sahilmgandhi 18:6a4db94011d3 853
sahilmgandhi 18:6a4db94011d3 854 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 855 while(!_sd_SDDataReady)
sahilmgandhi 18:6a4db94011d3 856 #else
sahilmgandhi 18:6a4db94011d3 857 while(1)
sahilmgandhi 18:6a4db94011d3 858 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 859 {
sahilmgandhi 18:6a4db94011d3 860
sahilmgandhi 18:6a4db94011d3 861 #ifndef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 862 if ((SD->INTSTS & SDH_INTSTS_BLKDIF_Msk) && (!(SD->CTL & SDH_CTL_DIEN_Msk))) {
sahilmgandhi 18:6a4db94011d3 863 SD->INTSTS = SDH_INTSTS_BLKDIF_Msk;
sahilmgandhi 18:6a4db94011d3 864 break;
sahilmgandhi 18:6a4db94011d3 865 }
sahilmgandhi 18:6a4db94011d3 866 #endif
sahilmgandhi 18:6a4db94011d3 867
sahilmgandhi 18:6a4db94011d3 868 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 869 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 870 }
sahilmgandhi 18:6a4db94011d3 871
sahilmgandhi 18:6a4db94011d3 872 if (!(SD->INTSTS & SDH_INTSTS_CRC7_Msk)) { // check CRC7
sahilmgandhi 18:6a4db94011d3 873 //printf("sdioSD_Read_in_blksize(): response error!\n");
sahilmgandhi 18:6a4db94011d3 874 return SD_CRC7_ERROR;
sahilmgandhi 18:6a4db94011d3 875 }
sahilmgandhi 18:6a4db94011d3 876
sahilmgandhi 18:6a4db94011d3 877 if (!(SD->INTSTS & SDH_INTSTS_CRC16_Msk)) { // check CRC16
sahilmgandhi 18:6a4db94011d3 878 //printf("sdioSD_Read_in_blksize(): read data error!\n");
sahilmgandhi 18:6a4db94011d3 879 return SD_CRC16_ERROR;
sahilmgandhi 18:6a4db94011d3 880 }
sahilmgandhi 18:6a4db94011d3 881 }
sahilmgandhi 18:6a4db94011d3 882
sahilmgandhi 18:6a4db94011d3 883 if (SD_SDCmdAndRsp(pSD, 12, 0, 0)) { // stop command
sahilmgandhi 18:6a4db94011d3 884 //printf("stop command fail !!\n");
sahilmgandhi 18:6a4db94011d3 885 return SD_CRC7_ERROR;
sahilmgandhi 18:6a4db94011d3 886 }
sahilmgandhi 18:6a4db94011d3 887 SD_CheckRB();
sahilmgandhi 18:6a4db94011d3 888
sahilmgandhi 18:6a4db94011d3 889 SD_SDCommand(pSD, 7, 0);
sahilmgandhi 18:6a4db94011d3 890 SD->CTL |= SDH_CTL_CLK8OEN_Msk;
sahilmgandhi 18:6a4db94011d3 891 while(SD->CTL & SDH_CTL_CLK8OEN_Msk);
sahilmgandhi 18:6a4db94011d3 892
sahilmgandhi 18:6a4db94011d3 893 return Successful;
sahilmgandhi 18:6a4db94011d3 894 }
sahilmgandhi 18:6a4db94011d3 895
sahilmgandhi 18:6a4db94011d3 896
sahilmgandhi 18:6a4db94011d3 897 /**
sahilmgandhi 18:6a4db94011d3 898 * @brief This function use to write data to SD card.
sahilmgandhi 18:6a4db94011d3 899 *
sahilmgandhi 18:6a4db94011d3 900 * @param[in] u32CardNum Select card: SD0 or SD1. ( \ref SD_PORT0 / \ref SD_PORT1)
sahilmgandhi 18:6a4db94011d3 901 * @param[in] pu8BufAddr The buffer to send the data to SD card.
sahilmgandhi 18:6a4db94011d3 902 * @param[in] u32StartSec The start write sector address.
sahilmgandhi 18:6a4db94011d3 903 * @param[in] u32SecCount The the write sector number of data.
sahilmgandhi 18:6a4db94011d3 904 *
sahilmgandhi 18:6a4db94011d3 905 * @return \ref SD_SELECT_ERROR : u32SecCount is zero. \n
sahilmgandhi 18:6a4db94011d3 906 * \ref SD_NO_SD_CARD : SD card be removed. \n
sahilmgandhi 18:6a4db94011d3 907 * \ref SD_CRC_ERROR : CRC error happen. \n
sahilmgandhi 18:6a4db94011d3 908 * \ref SD_CRC7_ERROR : CRC7 error happen. \n
sahilmgandhi 18:6a4db94011d3 909 * \ref Successful : Write data to SD card success.
sahilmgandhi 18:6a4db94011d3 910 */
sahilmgandhi 18:6a4db94011d3 911 uint32_t SD_Write(uint32_t u32CardNum, uint8_t *pu8BufAddr, uint32_t u32StartSec, uint32_t u32SecCount)
sahilmgandhi 18:6a4db94011d3 912 {
sahilmgandhi 18:6a4db94011d3 913 char volatile bIsSendCmd = FALSE;
sahilmgandhi 18:6a4db94011d3 914 unsigned int volatile reg;
sahilmgandhi 18:6a4db94011d3 915 int volatile i, loop, status;
sahilmgandhi 18:6a4db94011d3 916
sahilmgandhi 18:6a4db94011d3 917 SD_INFO_T *pSD;
sahilmgandhi 18:6a4db94011d3 918
sahilmgandhi 18:6a4db94011d3 919 if(u32CardNum == SD_PORT0)
sahilmgandhi 18:6a4db94011d3 920 pSD = &SD0;
sahilmgandhi 18:6a4db94011d3 921 else
sahilmgandhi 18:6a4db94011d3 922 pSD = &SD1;
sahilmgandhi 18:6a4db94011d3 923
sahilmgandhi 18:6a4db94011d3 924
sahilmgandhi 18:6a4db94011d3 925 //--- check input parameters
sahilmgandhi 18:6a4db94011d3 926 if (u32SecCount == 0) {
sahilmgandhi 18:6a4db94011d3 927 return SD_SELECT_ERROR;
sahilmgandhi 18:6a4db94011d3 928 }
sahilmgandhi 18:6a4db94011d3 929
sahilmgandhi 18:6a4db94011d3 930 if ((status = SD_SDCmdAndRsp(pSD, 7, pSD->RCA, 0)) != Successful)
sahilmgandhi 18:6a4db94011d3 931 return status;
sahilmgandhi 18:6a4db94011d3 932
sahilmgandhi 18:6a4db94011d3 933 SD_CheckRB();
sahilmgandhi 18:6a4db94011d3 934
sahilmgandhi 18:6a4db94011d3 935 // According to SD Spec v2.0, the write CMD block size MUST be 512, and the start address MUST be 512*n.
sahilmgandhi 18:6a4db94011d3 936 SD->BLEN = SD_BLOCK_SIZE - 1; // set the block size
sahilmgandhi 18:6a4db94011d3 937
sahilmgandhi 18:6a4db94011d3 938 if ((pSD->CardType == SD_TYPE_SD_HIGH) || (pSD->CardType == SD_TYPE_EMMC))
sahilmgandhi 18:6a4db94011d3 939 SD->CMDARG = u32StartSec;
sahilmgandhi 18:6a4db94011d3 940 else
sahilmgandhi 18:6a4db94011d3 941 SD->CMDARG = u32StartSec * SD_BLOCK_SIZE; // set start address for SD CMD
sahilmgandhi 18:6a4db94011d3 942
sahilmgandhi 18:6a4db94011d3 943 SD->DMASA = (uint32_t)pu8BufAddr;
sahilmgandhi 18:6a4db94011d3 944 loop = u32SecCount / 255; // the maximum block count is 0xFF=255 for register SDCR[BLK_CNT]
sahilmgandhi 18:6a4db94011d3 945 for (i=0; i<loop; i++) {
sahilmgandhi 18:6a4db94011d3 946 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 947 _sd_SDDataReady = FALSE;
sahilmgandhi 18:6a4db94011d3 948 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 949
sahilmgandhi 18:6a4db94011d3 950 reg = SD->CTL & 0xff00c080;
sahilmgandhi 18:6a4db94011d3 951 reg = reg | 0xff0000; // set BLK_CNT to 0xFF=255
sahilmgandhi 18:6a4db94011d3 952 if (!bIsSendCmd) {
sahilmgandhi 18:6a4db94011d3 953 SD->CTL = reg|(25<<8)|(SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DOEN_Msk);
sahilmgandhi 18:6a4db94011d3 954 bIsSendCmd = TRUE;
sahilmgandhi 18:6a4db94011d3 955 } else
sahilmgandhi 18:6a4db94011d3 956 SD->CTL = reg | SDH_CTL_DOEN_Msk;
sahilmgandhi 18:6a4db94011d3 957
sahilmgandhi 18:6a4db94011d3 958 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 959 while(!_sd_SDDataReady)
sahilmgandhi 18:6a4db94011d3 960 #else
sahilmgandhi 18:6a4db94011d3 961 while(1)
sahilmgandhi 18:6a4db94011d3 962 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 963 {
sahilmgandhi 18:6a4db94011d3 964 #ifndef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 965 if ((SD->INTSTS & SDH_INTSTS_BLKDIF_Msk) && (!(SD->CTL & SDH_CTL_DOEN_Msk))) {
sahilmgandhi 18:6a4db94011d3 966 SD->INTSTS = SDH_INTSTS_BLKDIF_Msk;
sahilmgandhi 18:6a4db94011d3 967 break;
sahilmgandhi 18:6a4db94011d3 968 }
sahilmgandhi 18:6a4db94011d3 969 #endif
sahilmgandhi 18:6a4db94011d3 970 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 971 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 972 }
sahilmgandhi 18:6a4db94011d3 973
sahilmgandhi 18:6a4db94011d3 974 if ((SD->INTSTS & SDH_INTSTS_CRCIF_Msk) != 0) { // check CRC
sahilmgandhi 18:6a4db94011d3 975 SD->INTSTS = SDH_INTSTS_CRCIF_Msk;
sahilmgandhi 18:6a4db94011d3 976 return SD_CRC_ERROR;
sahilmgandhi 18:6a4db94011d3 977 }
sahilmgandhi 18:6a4db94011d3 978 }
sahilmgandhi 18:6a4db94011d3 979
sahilmgandhi 18:6a4db94011d3 980 loop = u32SecCount % 255;
sahilmgandhi 18:6a4db94011d3 981 if (loop != 0) {
sahilmgandhi 18:6a4db94011d3 982 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 983 _sd_SDDataReady = FALSE;
sahilmgandhi 18:6a4db94011d3 984 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 985
sahilmgandhi 18:6a4db94011d3 986 reg = (SD->CTL & 0xff00c080) | (loop << 16);
sahilmgandhi 18:6a4db94011d3 987 if (!bIsSendCmd) {
sahilmgandhi 18:6a4db94011d3 988 SD->CTL = reg|(25<<8)|(SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DOEN_Msk);
sahilmgandhi 18:6a4db94011d3 989 bIsSendCmd = TRUE;
sahilmgandhi 18:6a4db94011d3 990 } else
sahilmgandhi 18:6a4db94011d3 991 SD->CTL = reg | SDH_CTL_DOEN_Msk;
sahilmgandhi 18:6a4db94011d3 992
sahilmgandhi 18:6a4db94011d3 993 #ifdef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 994 while(!_sd_SDDataReady)
sahilmgandhi 18:6a4db94011d3 995 #else
sahilmgandhi 18:6a4db94011d3 996 while(1)
sahilmgandhi 18:6a4db94011d3 997 #endif //_SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 998 {
sahilmgandhi 18:6a4db94011d3 999 #ifndef _SD_USE_INT_
sahilmgandhi 18:6a4db94011d3 1000 if ((SD->INTSTS & SDH_INTSTS_BLKDIF_Msk) && (!(SD->CTL & SDH_CTL_DOEN_Msk))) {
sahilmgandhi 18:6a4db94011d3 1001 SD->INTSTS = SDH_INTSTS_BLKDIF_Msk;
sahilmgandhi 18:6a4db94011d3 1002 break;
sahilmgandhi 18:6a4db94011d3 1003 }
sahilmgandhi 18:6a4db94011d3 1004 #endif
sahilmgandhi 18:6a4db94011d3 1005 if (pSD->IsCardInsert == FALSE)
sahilmgandhi 18:6a4db94011d3 1006 return SD_NO_SD_CARD;
sahilmgandhi 18:6a4db94011d3 1007 }
sahilmgandhi 18:6a4db94011d3 1008
sahilmgandhi 18:6a4db94011d3 1009 if ((SD->INTSTS & SDH_INTSTS_CRCIF_Msk) != 0) { // check CRC
sahilmgandhi 18:6a4db94011d3 1010 SD->INTSTS = SDH_INTSTS_CRCIF_Msk;
sahilmgandhi 18:6a4db94011d3 1011 return SD_CRC_ERROR;
sahilmgandhi 18:6a4db94011d3 1012 }
sahilmgandhi 18:6a4db94011d3 1013 }
sahilmgandhi 18:6a4db94011d3 1014 SD->INTSTS = SDH_INTSTS_CRCIF_Msk;
sahilmgandhi 18:6a4db94011d3 1015
sahilmgandhi 18:6a4db94011d3 1016 if (SD_SDCmdAndRsp(pSD, 12, 0, 0)) { // stop command
sahilmgandhi 18:6a4db94011d3 1017 return SD_CRC7_ERROR;
sahilmgandhi 18:6a4db94011d3 1018 }
sahilmgandhi 18:6a4db94011d3 1019 SD_CheckRB();
sahilmgandhi 18:6a4db94011d3 1020
sahilmgandhi 18:6a4db94011d3 1021 SD_SDCommand(pSD, 7, 0);
sahilmgandhi 18:6a4db94011d3 1022 SD->CTL |= SDH_CTL_CLK8OEN_Msk;
sahilmgandhi 18:6a4db94011d3 1023 while(SD->CTL & SDH_CTL_CLK8OEN_Msk);
sahilmgandhi 18:6a4db94011d3 1024
sahilmgandhi 18:6a4db94011d3 1025 return Successful;
sahilmgandhi 18:6a4db94011d3 1026 }
sahilmgandhi 18:6a4db94011d3 1027
sahilmgandhi 18:6a4db94011d3 1028
sahilmgandhi 18:6a4db94011d3 1029 /*@}*/ /* end of group NUC472_442_SD_EXPORTED_FUNCTIONS */
sahilmgandhi 18:6a4db94011d3 1030
sahilmgandhi 18:6a4db94011d3 1031 /*@}*/ /* end of group NUC472_442_SD_Driver */
sahilmgandhi 18:6a4db94011d3 1032
sahilmgandhi 18:6a4db94011d3 1033 /*@}*/ /* end of group NUC472_442_Device_Driver */
sahilmgandhi 18:6a4db94011d3 1034
sahilmgandhi 18:6a4db94011d3 1035 /*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
sahilmgandhi 18:6a4db94011d3 1036
sahilmgandhi 18:6a4db94011d3 1037
sahilmgandhi 18:6a4db94011d3 1038
sahilmgandhi 18:6a4db94011d3 1039
sahilmgandhi 18:6a4db94011d3 1040
sahilmgandhi 18:6a4db94011d3 1041
sahilmgandhi 18:6a4db94011d3 1042
sahilmgandhi 18:6a4db94011d3 1043