1 /**************************************************************************//**
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4 * @brief M2351 SDH driver source file
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7 * @copyright (C) 2017 Nuvoton Technology Corp. All rights reserved.
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8 *****************************************************************************/
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12 #include "NuMicro.h"
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14 #if defined (__ICCARM__)
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15 # pragma diag_suppress=Pm073, Pm143 /* Misra C 2004 rule 14.7 */
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19 /** @addtogroup Standard_Driver Standard Driver
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23 /** @addtogroup SDH_Driver SDH Driver
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27 /** @addtogroup SDH_EXPORTED_FUNCTIONS SDH Exported Functions
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31 #define SDH_BLOCK_SIZE 512UL
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33 /* #define DEBUG_PRINTF printf */
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34 #define DEBUG_PRINTF(...)
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36 /** @cond HIDDEN_SYMBOLS */
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38 /* global variables */
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39 /* For response R3 (such as ACMD41, CRC-7 is invalid; but SD controller will still */
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40 /* calculate CRC-7 and get an error result, software should ignore this error and clear SDISR [CRC_IF] flag */
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41 /* _sd_uR3_CMD is the flag for it. 1 means software should ignore CRC-7 error */
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42 uint8_t g_u8R3Flag = 0UL;
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43 uint8_t volatile g_u8SDDataReadyFlag = (uint8_t)FALSE;
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45 static uint32_t _SDH_uR7_CMD = 0UL;
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46 static uint32_t _SDH_ReferenceClock;
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48 #if defined ( __ICCARM__ ) /*!< IAR Compiler */
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49 #pragma data_alignment = 4
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50 static uint8_t _SDH_ucSDHCBuffer[512];
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52 static __attribute__((aligned)) uint8_t _SDH_ucSDHCBuffer[512];
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55 /* Declare these functions here to avoid MISRA C 2004 rule 8.1 error */
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56 void SDH_CheckRB(SDH_T *sdh);
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57 uint32_t SDH_SDCommand(SDH_T *sdh, uint32_t u32Cmd, uint32_t u32Arg);
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58 uint32_t SDH_SDCmdAndRsp(SDH_T *sdh, uint32_t u32Cmd, uint32_t u32Arg, uint32_t u32TickCount);
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59 uint32_t SDH_Swap32(uint32_t u32Val);
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60 uint32_t SDH_SDCmdAndRsp2(SDH_T *sdh, uint32_t u32Cmd, uint32_t u32Arg, uint32_t pu32R2ptr[]);
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61 uint32_t SDH_SDCmdAndRspDataIn(SDH_T *sdh, uint32_t u32Cmd, uint32_t u32Arg);
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62 void SDH_Set_clock(SDH_T *sdh, uint32_t u32SDClockKhz);
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63 uint32_t SDH_CardDetection(SDH_T *sdh);
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64 uint32_t SDH_Init(SDH_T *sdh);
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65 uint32_t SDH_SwitchToHighSpeed(SDH_T *sdh, SDH_INFO_T *pSD);
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66 uint32_t SDH_SelectCardType(SDH_T *sdh);
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67 void SDH_Get_SD_info(SDH_T *sdh);
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73 void SDH_CheckRB(SDH_T *sdh)
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77 sdh->CTL |= SDH_CTL_CLK8OEN_Msk;
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78 while(sdh->CTL & SDH_CTL_CLK8OEN_Msk) {}
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79 if(sdh->INTSTS & SDH_INTSTS_DAT0STS_Msk)
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87 uint32_t SDH_SDCommand(SDH_T *sdh, uint32_t u32Cmd, uint32_t u32Arg)
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90 volatile uint32_t u32Status = Successful;
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92 /* M2351 is only support SDH0 */
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95 sdh->CMDARG = u32Arg;
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96 sdh->CTL = (sdh->CTL & (~SDH_CTL_CMDCODE_Msk)) | (u32Cmd << 8) | (SDH_CTL_COEN_Msk);
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98 while(sdh->CTL & SDH_CTL_COEN_Msk)
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100 if(pSD->IsCardInsert == (uint32_t)FALSE)
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102 u32Status = SDH_NO_SD_CARD;
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109 uint32_t SDH_SDCmdAndRsp(SDH_T *sdh, uint32_t u32Cmd, uint32_t u32Arg, uint32_t u32TickCount)
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113 /* M2351 is only support SDH0 */
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116 sdh->CMDARG = u32Arg;
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117 sdh->CTL = (sdh->CTL & (~SDH_CTL_CMDCODE_Msk)) | (u32Cmd << 8) | (SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk);
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119 if(u32TickCount > 0UL)
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121 while(sdh->CTL & SDH_CTL_RIEN_Msk)
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123 if(u32TickCount-- == 0UL)
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125 sdh->CTL |= SDH_CTL_CTLRST_Msk; /* reset SD engine */
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128 if(pSD->IsCardInsert == (uint8_t)FALSE)
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130 return SDH_NO_SD_CARD;
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136 while(sdh->CTL & SDH_CTL_RIEN_Msk)
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138 if(pSD->IsCardInsert == (uint8_t)FALSE)
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140 return SDH_NO_SD_CARD;
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147 if((sdh->RESP1 & 0xffUL) != 0x55UL)
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149 if((sdh->RESP0 & 0xfUL) != 0x01UL)
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151 _SDH_uR7_CMD = 0UL;
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152 return SDH_CMD8_ERROR;
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159 if(sdh->INTSTS & SDH_INTSTS_CRC7_Msk) /* check CRC7 */
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165 return SDH_CRC7_ERROR;
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168 else /* ignore CRC error for R3 case */
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171 sdh->INTSTS = SDH_INTSTS_CRCIF_Msk;
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177 uint32_t SDH_Swap32(uint32_t u32Val)
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183 u32Val |= (u32Buf << 8) & 0xff0000UL;
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184 u32Val |= (u32Buf >> 8) & 0xff00UL;
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185 u32Val |= (u32Buf >> 24) & 0xffUL;
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189 /* Get 16 bytes CID or CSD */
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190 uint32_t SDH_SDCmdAndRsp2(SDH_T *sdh, uint32_t u32Cmd, uint32_t u32Arg, uint32_t pu32R2ptr[])
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193 uint32_t au32TmpBuf[5];
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196 /* M2351 is only support SDH0 */
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199 sdh->CMDARG = u32Arg;
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200 sdh->CTL = (sdh->CTL & (~SDH_CTL_CMDCODE_Msk)) | (u32Cmd << 8) | (SDH_CTL_COEN_Msk | SDH_CTL_R2EN_Msk);
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202 while(sdh->CTL & SDH_CTL_R2EN_Msk)
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204 if(pSD->IsCardInsert == (uint8_t)FALSE)
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206 return SDH_NO_SD_CARD;
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210 if(sdh->INTSTS & SDH_INTSTS_CRC7_Msk)
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212 for(i = 0UL; i < 5UL; i++)
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214 au32TmpBuf[i] = SDH_Swap32(sdh->FB[i]);
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216 for(i = 0UL; i < 4UL; i++)
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218 pu32R2ptr[i] = ((au32TmpBuf[i] & 0x00ffffffUL) << 8) | ((au32TmpBuf[i + 1UL] & 0xff000000UL) >> 24);
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224 return SDH_CRC7_ERROR;
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229 uint32_t SDH_SDCmdAndRspDataIn(SDH_T *sdh, uint32_t u32Cmd, uint32_t u32Arg)
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233 /* M2351 is only support SDH0 */
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236 sdh->CMDARG = u32Arg;
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237 sdh->CTL = (sdh->CTL & (~SDH_CTL_CMDCODE_Msk)) | ((uint32_t)u32Cmd << 8) |
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238 (SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DIEN_Msk);
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240 while(sdh->CTL & SDH_CTL_RIEN_Msk)
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242 if(pSD->IsCardInsert == (uint32_t)FALSE)
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244 return SDH_NO_SD_CARD;
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248 while(sdh->CTL & SDH_CTL_DIEN_Msk)
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250 if(pSD->IsCardInsert == (uint32_t)FALSE)
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252 return SDH_NO_SD_CARD;
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256 if(!(sdh->INTSTS & SDH_INTSTS_CRC7_Msk)) /* check CRC7 */
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258 return SDH_CRC7_ERROR;
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261 if(!(sdh->INTSTS & SDH_INTSTS_CRC16_Msk)) /* check CRC16 */
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263 return SDH_CRC16_ERROR;
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269 /* there are 8 bits for divider0, maximum is 256 */
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270 #define SDH_CLK_DIV0_MAX 256UL
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272 void SDH_Set_clock(SDH_T *sdh, uint32_t u32SDClockKhz)
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274 if(!(__PC() & (1UL << 28)))
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276 uint32_t u32Rate, u32Div1;
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277 static uint32_t u32SDClkSrc = 0UL;
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279 /* M2351 is only support SDH0 */
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280 u32SDClkSrc = (CLK->CLKSEL0 & CLK_CLKSEL0_SDH0SEL_Msk);
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281 if(u32SDClkSrc == CLK_CLKSEL0_SDH0SEL_HXT)
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283 _SDH_ReferenceClock = (CLK_GetHXTFreq() / 1000UL);
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285 else if(u32SDClkSrc == CLK_CLKSEL0_SDH0SEL_HIRC)
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287 _SDH_ReferenceClock = (__HIRC / 1000UL);
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289 else if(u32SDClkSrc == CLK_CLKSEL0_SDH0SEL_PLL)
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291 _SDH_ReferenceClock = (CLK_GetPLLClockFreq() / 1000UL);
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293 else if(u32SDClkSrc == CLK_CLKSEL0_SDH0SEL_HCLK)
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295 _SDH_ReferenceClock = (CLK_GetHCLKFreq() / 1000UL);
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298 if(u32SDClockKhz >= 50000UL)
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300 u32SDClockKhz = 50000UL;
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302 u32Rate = _SDH_ReferenceClock / u32SDClockKhz;
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304 /* choose slower clock if system clock cannot divisible by wanted clock */
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305 if(_SDH_ReferenceClock % u32SDClockKhz != 0UL)
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310 if(u32Rate >= SDH_CLK_DIV0_MAX)
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312 u32Rate = SDH_CLK_DIV0_MAX;
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315 /* --- calculate the second divider CLKDIV0[SDHOST_N] */
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322 u32Div1 = ((u32Rate - 1UL) & 0xFFUL);
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325 /* --- setup register */
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326 /* M2351 is only support SDH0 */
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327 CLK->CLKDIV0 &= ~CLK_CLKDIV0_SDH0DIV_Msk;
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328 CLK->CLKDIV0 |= (u32Div1 << CLK_CLKDIV0_SDH0DIV_Pos);
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332 uint32_t SDH_CardDetection(SDH_T *sdh)
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334 uint32_t i, u32Status = (uint32_t)TRUE;
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337 /* M2351 is only support SDH0 */
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340 if(sdh->INTEN & SDH_INTEN_CDSRC_Msk) /* Card detect pin from GPIO */
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342 if(sdh->INTSTS & SDH_INTSTS_CDSTS_Msk) /* Card remove */
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344 pSD->IsCardInsert = (uint8_t)FALSE;
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345 u32Status = (uint32_t)FALSE;
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349 pSD->IsCardInsert = (uint8_t)TRUE;
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352 else if(!(sdh->INTEN & SDH_INTEN_CDSRC_Msk))
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354 sdh->CTL |= SDH_CTL_CLKKEEP_Msk;
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355 for(i = 0UL; i < 5000UL; i++) {}
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357 if(sdh->INTSTS & SDH_INTSTS_CDSTS_Msk) /* Card insert */
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359 pSD->IsCardInsert = (uint8_t)TRUE;
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363 pSD->IsCardInsert = (uint8_t)FALSE;
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364 u32Status = (uint32_t)FALSE;
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367 sdh->CTL &= ~SDH_CTL_CLKKEEP_Msk;
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375 uint32_t SDH_Init(SDH_T *sdh)
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377 uint32_t volatile i, u32Status;
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379 uint32_t au32CIDBuffer[4];
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380 uint32_t volatile u32CmdTimeOut;
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383 /* M2351 is only support SDH0 */
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386 /* set the clock to 300KHz */
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387 SDH_Set_clock(sdh, 300UL);
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389 /* power ON 74 clock */
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390 sdh->CTL |= SDH_CTL_CLK74OEN_Msk;
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392 while(sdh->CTL & SDH_CTL_CLK74OEN_Msk)
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394 if(pSD->IsCardInsert == (uint8_t)FALSE)
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396 return SDH_NO_SD_CARD;
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400 SDH_SDCommand(sdh, 0UL, 0UL); /* reset all cards */
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401 for(i = 0x1000UL; i > 0UL; i--) {}
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404 _SDH_uR7_CMD = 1UL;
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405 u32CmdTimeOut = 0xFFFFFUL;
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407 i = SDH_SDCmdAndRsp(sdh, 8UL, 0x00000155UL, u32CmdTimeOut);
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408 if(i == Successful)
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411 SDH_SDCmdAndRsp(sdh, 55UL, 0x00UL, u32CmdTimeOut);
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413 SDH_SDCmdAndRsp(sdh, 41UL, 0x40ff8000UL, u32CmdTimeOut); /* 2.7v-3.6v */
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414 u32Resp = sdh->RESP0;
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416 while(!(u32Resp & 0x00800000UL)) /* check if card is ready */
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418 SDH_SDCmdAndRsp(sdh, 55UL, 0x00UL, u32CmdTimeOut);
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420 SDH_SDCmdAndRsp(sdh, 41UL, 0x40ff8000UL, u32CmdTimeOut); /* 3.0v-3.4v */
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421 u32Resp = sdh->RESP0;
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423 if(u32Resp & 0x00400000UL)
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425 pSD->CardType = SDH_TYPE_SD_HIGH;
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429 pSD->CardType = SDH_TYPE_SD_LOW;
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435 SDH_SDCommand(sdh, 0UL, 0UL); /* reset all cards */
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436 for(i = 0x100UL; i > 0UL; i--) {}
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438 i = SDH_SDCmdAndRsp(sdh, 55UL, 0x00UL, u32CmdTimeOut);
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439 if(i == 2UL) /* MMC memory */
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441 SDH_SDCommand(sdh, 0UL, 0UL); /* reset */
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442 for(i = 0x100UL; i > 0UL; i--) {}
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446 if(SDH_SDCmdAndRsp(sdh, 1UL, 0x40ff8000UL, u32CmdTimeOut) != 2UL) /* eMMC memory */
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448 u32Resp = sdh->RESP0;
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449 while(!(u32Resp & 0x00800000UL)) /* check if card is ready */
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453 SDH_SDCmdAndRsp(sdh, 1UL, 0x40ff8000UL, u32CmdTimeOut); /* high voltage */
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454 u32Resp = sdh->RESP0;
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457 if(u32Resp & 0x00400000UL)
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459 pSD->CardType = SDH_TYPE_EMMC;
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463 pSD->CardType = SDH_TYPE_MMC;
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468 pSD->CardType = SDH_TYPE_UNKNOWN;
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469 return SDH_ERR_DEVICE;
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472 else if(i == 0UL) /* SD Memory */
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475 SDH_SDCmdAndRsp(sdh, 41UL, 0x00ff8000UL, u32CmdTimeOut); /* 3.0v-3.4v */
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476 u32Resp = sdh->RESP0;
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477 while(!(u32Resp & 0x00800000UL)) /* check if card is ready */
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479 SDH_SDCmdAndRsp(sdh, 55UL, 0x00UL, u32CmdTimeOut);
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481 SDH_SDCmdAndRsp(sdh, 41UL, 0x00ff8000UL, u32CmdTimeOut); /* 3.0v-3.4v */
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482 u32Resp = sdh->RESP0;
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484 pSD->CardType = SDH_TYPE_SD_LOW;
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488 pSD->CardType = SDH_TYPE_UNKNOWN;
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489 return SDH_INIT_ERROR;
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494 if(pSD->CardType != SDH_TYPE_UNKNOWN)
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496 SDH_SDCmdAndRsp2(sdh, 2UL, 0x00UL, au32CIDBuffer);
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497 if((pSD->CardType == SDH_TYPE_MMC) || (pSD->CardType == SDH_TYPE_EMMC))
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499 if((u32Status = SDH_SDCmdAndRsp(sdh, 3UL, 0x10000UL, 0UL)) != Successful) /* set RCA */
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503 pSD->RCA = 0x10000UL;
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507 if((u32Status = SDH_SDCmdAndRsp(sdh, 3UL, 0x00UL, 0UL)) != Successful) /* get RCA */
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513 pSD->RCA = (sdh->RESP0 << 8) & 0xffff0000UL;
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522 uint32_t SDH_SwitchToHighSpeed(SDH_T *sdh, SDH_INFO_T *pSD)
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524 uint32_t volatile u32Status = 0UL;
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525 uint16_t u16CurrentComsumption, u16BusyStatus0;
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527 sdh->DMASA = (uint32_t)_SDH_ucSDHCBuffer; /* set DMA transfer starting address */
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528 sdh->BLEN = 63UL; /* 512 bit */
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530 if((u32Status = SDH_SDCmdAndRspDataIn(sdh, 6UL, 0x00ffff01UL)) != Successful)
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535 u16CurrentComsumption = (uint16_t)_SDH_ucSDHCBuffer[0] << 8;
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536 u16CurrentComsumption |= (uint16_t)_SDH_ucSDHCBuffer[1];
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537 if(!u16CurrentComsumption)
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542 u16BusyStatus0 = (uint16_t)_SDH_ucSDHCBuffer[28] << 8;
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543 u16BusyStatus0 |= (uint16_t)_SDH_ucSDHCBuffer[29];
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545 if(!u16BusyStatus0) /* function ready */
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547 sdh->DMASA = (uint32_t)_SDH_ucSDHCBuffer; /* set DMA transfer starting address */
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548 sdh->BLEN = 63UL; /* 512 bit */
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550 if((u32Status = SDH_SDCmdAndRspDataIn(sdh, 6UL, 0x80ffff01UL)) != Successful)
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555 /* function change timing: 8 clocks */
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556 sdh->CTL |= SDH_CTL_CLK8OEN_Msk;
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557 while(sdh->CTL & SDH_CTL_CLK8OEN_Msk) {}
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559 u16CurrentComsumption = (uint16_t)_SDH_ucSDHCBuffer[0] << 8;
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560 u16CurrentComsumption |= (uint16_t)_SDH_ucSDHCBuffer[1];
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561 if(!u16CurrentComsumption)
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575 uint32_t SDH_SelectCardType(SDH_T *sdh)
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577 uint32_t volatile u32Status = 0UL;
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581 /* M2351 is only support SDH0 */
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584 if((u32Status = SDH_SDCmdAndRsp(sdh, 7UL, pSD->RCA, 0UL)) != Successful)
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591 /* if SD card set 4bit */
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592 if(pSD->CardType == SDH_TYPE_SD_HIGH)
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594 sdh->DMASA = (uint32_t)_SDH_ucSDHCBuffer; /* set DMA transfer starting address */
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595 sdh->BLEN = 0x07UL; /* 64 bit */
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597 if((u32Status = SDH_SDCmdAndRsp(sdh, 55UL, pSD->RCA, 0UL)) != Successful)
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602 sdh->DMACTL |= 0x2;
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603 while(sdh->DMACTL & 0x2) {};
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605 if((u32Status = SDH_SDCmdAndRspDataIn(sdh, 51UL, 0x00UL)) != Successful)
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610 if((_SDH_ucSDHCBuffer[0] & 0xfUL) == 0xfUL)
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612 u32Status = SDH_SwitchToHighSpeed(sdh, pSD);
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613 if(u32Status == Successful)
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616 SDH_Set_clock(sdh, SDHC_FREQ);
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620 if((u32Status = SDH_SDCmdAndRsp(sdh, 55UL, pSD->RCA, 0UL)) != Successful)
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624 if((u32Status = SDH_SDCmdAndRsp(sdh, 6UL, 0x02UL, 0UL)) != Successful) /* set bus width */
\r
629 sdh->CTL |= SDH_CTL_DBW_Msk;
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631 else if(pSD->CardType == SDH_TYPE_SD_LOW)
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633 sdh->DMASA = (uint32_t) _SDH_ucSDHCBuffer; /* set DMA transfer starting address */
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634 sdh->BLEN = 0x07UL; /* 64 bit */
\r
636 if((u32Status = SDH_SDCmdAndRsp(sdh, 55UL, pSD->RCA, 0UL)) != Successful)
\r
640 if((u32Status = SDH_SDCmdAndRspDataIn(sdh, 51UL, 0x00UL)) != Successful)
\r
645 /* set data bus width. ACMD6 for SD card, SDCR_DBW for host. */
\r
646 if((u32Status = SDH_SDCmdAndRsp(sdh, 55UL, pSD->RCA, 0UL)) != Successful)
\r
651 if((u32Status = SDH_SDCmdAndRsp(sdh, 6UL, 0x02UL, 0UL)) != Successful) /* set bus width */
\r
656 sdh->CTL |= SDH_CTL_DBW_Msk;
\r
658 else if((pSD->CardType == SDH_TYPE_MMC) || (pSD->CardType == SDH_TYPE_EMMC))
\r
661 if(pSD->CardType == SDH_TYPE_MMC)
\r
663 sdh->CTL &= ~SDH_CTL_DBW_Msk;
\r
666 /* --- sent CMD6 to MMC card to set bus width to 4 bits mode */
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667 /* set CMD6 argument Access field to 3, Index to 183, Value to 1 (4-bit mode) */
\r
668 u32Param = (3UL << 24) | (183UL << 16) | (1UL << 8);
\r
669 if((u32Status = SDH_SDCmdAndRsp(sdh, 6UL, u32Param, 0UL)) != Successful)
\r
675 sdh->CTL |= SDH_CTL_DBW_Msk; /* set bus width to 4-bit mode for SD host controller */
\r
678 if((u32Status = SDH_SDCmdAndRsp(sdh, 16UL, SDH_BLOCK_SIZE, 0UL)) != Successful) /* set block length */
\r
682 sdh->BLEN = SDH_BLOCK_SIZE - 1UL; /* set the block size */
\r
684 SDH_SDCommand(sdh, 7UL, 0UL);
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685 sdh->CTL |= SDH_CTL_CLK8OEN_Msk;
\r
686 while(sdh->CTL & SDH_CTL_CLK8OEN_Msk) {}
\r
688 sdh->INTEN |= SDH_INTEN_BLKDIEN_Msk;
\r
693 void SDH_Get_SD_info(SDH_T *sdh)
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695 uint32_t u32RLen, u32CSize, u32Mult, u32Size;
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696 uint32_t au32Buffer[4];
\r
699 /* M2351 is only support SDH0 */
\r
702 SDH_SDCmdAndRsp2(sdh, 9UL, pSD->RCA, au32Buffer);
\r
704 if((pSD->CardType == SDH_TYPE_MMC) || (pSD->CardType == SDH_TYPE_EMMC))
\r
706 /* for MMC/eMMC card */
\r
707 if((au32Buffer[0] & 0xc0000000UL) == 0xc0000000UL)
\r
709 /* CSD_STRUCTURE [127:126] is 3 */
\r
710 /* CSD version depend on EXT_CSD register in eMMC v4.4 for card size > 2GB */
\r
711 SDH_SDCmdAndRsp(sdh, 7UL, pSD->RCA, 0UL);
\r
713 sdh->DMASA = (uint32_t)_SDH_ucSDHCBuffer; /* set DMA transfer starting address */
\r
714 sdh->BLEN = 511UL; /* read 512 bytes for EXT_CSD */
\r
716 if(SDH_SDCmdAndRspDataIn(sdh, 8UL, 0x00UL) != Successful)
\r
721 SDH_SDCommand(sdh, 7UL, 0UL);
\r
722 sdh->CTL |= SDH_CTL_CLK8OEN_Msk;
\r
723 while(sdh->CTL & SDH_CTL_CLK8OEN_Msk) {}
\r
725 pSD->totalSectorN = (uint32_t)_SDH_ucSDHCBuffer[215] << 24;
\r
726 pSD->totalSectorN |= (uint32_t)_SDH_ucSDHCBuffer[214] << 16;
\r
727 pSD->totalSectorN |= (uint32_t)_SDH_ucSDHCBuffer[213] << 8;
\r
728 pSD->totalSectorN |= (uint32_t)_SDH_ucSDHCBuffer[212];
\r
729 pSD->diskSize = pSD->totalSectorN / 2UL;
\r
733 /* CSD version v1.0/1.1/1.2 in eMMC v4.4 spec for card size <= 2GB */
\r
734 u32RLen = (au32Buffer[1] & 0x000f0000UL) >> 16;
\r
735 u32CSize = ((au32Buffer[1] & 0x000003ffUL) << 2) | ((au32Buffer[2] & 0xc0000000UL) >> 30);
\r
736 u32Mult = (au32Buffer[2] & 0x00038000UL) >> 15;
\r
737 u32Size = (u32CSize + 1UL) * (1UL << (u32Mult + 2UL)) * (1UL << u32RLen);
\r
739 pSD->diskSize = u32Size / 1024UL;
\r
740 pSD->totalSectorN = u32Size / 512UL;
\r
745 if(au32Buffer[0] & 0xc0000000UL)
\r
747 u32CSize = ((au32Buffer[1] & 0x0000003fUL) << 16) | ((au32Buffer[2] & 0xffff0000UL) >> 16);
\r
748 u32Size = (u32CSize + 1UL) * 512UL; /* Kbytes */
\r
750 pSD->diskSize = u32Size;
\r
751 pSD->totalSectorN = u32Size << 1;
\r
755 u32RLen = (au32Buffer[1] & 0x000f0000UL) >> 16;
\r
756 u32CSize = ((au32Buffer[1] & 0x000003ffUL) << 2) | ((au32Buffer[2] & 0xc0000000UL) >> 30);
\r
757 u32Mult = (au32Buffer[2] & 0x00038000UL) >> 15;
\r
758 u32Size = (u32CSize + 1UL) * (1UL << (u32Mult + 2UL)) * (1UL << u32RLen);
\r
760 pSD->diskSize = u32Size / 1024UL;
\r
761 pSD->totalSectorN = u32Size / 512UL;
\r
764 pSD->sectorSize = (int)512UL;
\r
767 /** @endcond HIDDEN_SYMBOLS */
\r
771 * @brief This function use to reset SD function and select card detection source and pin.
\r
773 * @param[in] sdh The pointer of the specified SDH module.
\r
774 * @param[in] u32CardDetSrc Select card detection pin from GPIO or DAT3 pin. ( \ref CardDetect_From_GPIO / \ref CardDetect_From_DAT3)
\r
778 void SDH_Open(SDH_T *sdh, uint32_t u32CardDetSrc)
\r
781 sdh->DMACTL = SDH_DMACTL_DMARST_Msk;
\r
782 while(sdh->DMACTL & SDH_DMACTL_DMARST_Msk) {}
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784 sdh->DMACTL = SDH_DMACTL_DMAEN_Msk;
\r
787 sdh->GCTL = SDH_GCTL_GCTLRST_Msk | SDH_GCTL_SDEN_Msk; /* Start reset FMI controller. */
\r
788 while(sdh->GCTL & SDH_GCTL_GCTLRST_Msk) {}
\r
790 memset(&SD0, 0, sizeof(SDH_INFO_T));
\r
793 sdh->GCTL = SDH_GCTL_SDEN_Msk;
\r
795 if(u32CardDetSrc & CardDetect_From_DAT3)
\r
797 sdh->INTEN &= ~SDH_INTEN_CDSRC_Msk;
\r
801 sdh->INTEN |= SDH_INTEN_CDSRC_Msk;
\r
803 sdh->INTEN |= SDH_INTEN_CDIEN_Msk;
\r
805 sdh->CTL |= SDH_CTL_CTLRST_Msk; /* SD software reset */
\r
806 while(sdh->CTL & SDH_CTL_CTLRST_Msk) {}
\r
811 * @brief This function use to initial SD card.
\r
813 * @param[in] sdh The pointer of the specified SDH module.
\r
817 * @details This function is used to initial SD card.
\r
818 * SD initial state needs 400KHz clock output, driver will use HIRC for SD initial clock source.
\r
819 * And then switch back to the user's setting.
\r
821 uint32_t SDH_Probe(SDH_T *sdh)
\r
825 /* Disable FMI/SD host interrupt */
\r
828 sdh->CTL &= ~SDH_CTL_SDNWR_Msk;
\r
829 sdh->CTL |= 0x09UL << SDH_CTL_SDNWR_Pos; /* set SDNWR = 9 */
\r
830 sdh->CTL &= ~SDH_CTL_BLKCNT_Msk;
\r
831 sdh->CTL |= 0x01UL << SDH_CTL_BLKCNT_Pos; /* set BLKCNT = 1 */
\r
832 sdh->CTL &= ~SDH_CTL_DBW_Msk; /* SD 1-bit data bus */
\r
834 if(!(SDH_CardDetection(sdh)))
\r
836 return SDH_NO_SD_CARD;
\r
839 if((u32Val = SDH_Init(sdh)) != 0UL)
\r
845 if(SD0.CardType == SDH_TYPE_MMC)
\r
847 SDH_Set_clock(sdh, MMC_FREQ);
\r
851 SDH_Set_clock(sdh, SD_FREQ);
\r
853 SDH_Get_SD_info(sdh);
\r
855 if((u32Val = SDH_SelectCardType(sdh)) != 0UL)
\r
865 * @brief This function use to read data from SD card.
\r
867 * @param[in] sdh The pointer of the specified SDH module.
\r
868 * @param[out] pu8BufAddr The buffer to receive the data from SD card.
\r
869 * @param[in] u32StartSec The start read sector address.
\r
870 * @param[in] u32SecCount The the read sector number of data
\r
874 uint32_t SDH_Read(SDH_T *sdh, uint8_t *pu8BufAddr, uint32_t u32StartSec, uint32_t u32SecCount)
\r
876 uint32_t volatile u32IsSendCmd = (uint32_t)FALSE, u32Buf;
\r
877 uint32_t volatile u32Reg;
\r
878 uint32_t volatile i, u32Loop, u32Status;
\r
879 uint32_t u32BlkSize = SDH_BLOCK_SIZE;
\r
883 /* M2351 is only support SDH0 */
\r
886 /* --- check input parameters */
\r
887 if(u32SecCount == 0UL)
\r
889 return SDH_SELECT_ERROR;
\r
892 if((u32Status = SDH_SDCmdAndRsp(sdh, 7UL, pSD->RCA, 0UL)) != Successful)
\r
898 sdh->BLEN = u32BlkSize - 1UL; /* the actual byte count is equal to (SDBLEN+1) */
\r
900 if((pSD->CardType == SDH_TYPE_SD_HIGH) || (pSD->CardType == SDH_TYPE_EMMC))
\r
902 sdh->CMDARG = u32StartSec;
\r
906 sdh->CMDARG = u32StartSec * u32BlkSize;
\r
909 sdh->DMASA = (uint32_t)pu8BufAddr;
\r
911 u32Loop = u32SecCount / 255UL;
\r
912 while(u32Loop > 0UL)
\r
914 g_u8SDDataReadyFlag = (uint8_t)FALSE;
\r
915 u32Reg = sdh->CTL & ~SDH_CTL_CMDCODE_Msk;
\r
916 u32Reg = u32Reg | 0xff0000UL; /* set BLK_CNT to 255 */
\r
917 if(u32IsSendCmd == (uint32_t)FALSE)
\r
919 sdh->CTL = u32Reg | (18UL << 8) | (SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DIEN_Msk);
\r
920 u32IsSendCmd = (uint32_t)TRUE;
\r
924 sdh->CTL = u32Reg | SDH_CTL_DIEN_Msk;
\r
927 while(!g_u8SDDataReadyFlag)
\r
929 if(g_u8SDDataReadyFlag)
\r
933 if(pSD->IsCardInsert == (uint8_t)FALSE)
\r
935 return SDH_NO_SD_CARD;
\r
939 if(!(sdh->INTSTS & SDH_INTSTS_CRC7_Msk)) /* check CRC7 */
\r
941 return SDH_CRC7_ERROR;
\r
944 if(!(sdh->INTSTS & SDH_INTSTS_CRC16_Msk)) /* check CRC16 */
\r
946 return SDH_CRC16_ERROR;
\r
951 u32Loop = u32SecCount % 255UL;
\r
954 uint32_t u32RegTmp;
\r
955 g_u8SDDataReadyFlag = (uint8_t)FALSE;
\r
956 u32Reg = sdh->CTL & (~SDH_CTL_CMDCODE_Msk);
\r
957 u32Reg = u32Reg & (~SDH_CTL_BLKCNT_Msk);
\r
958 u32RegTmp = (u32Loop << 16);
\r
959 u32Reg |= u32RegTmp; /* setup SDCR_BLKCNT */
\r
961 if(u32IsSendCmd == (uint32_t)FALSE)
\r
963 sdh->CTL = u32Reg | (18UL << 8) | (SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DIEN_Msk);
\r
964 u32IsSendCmd = (uint32_t)TRUE;
\r
968 sdh->CTL = u32Reg | SDH_CTL_DIEN_Msk;
\r
971 while(!g_u8SDDataReadyFlag)
\r
973 if(pSD->IsCardInsert == (uint8_t)FALSE)
\r
975 return SDH_NO_SD_CARD;
\r
979 if(!(sdh->INTSTS & SDH_INTSTS_CRC7_Msk)) /* check CRC7 */
\r
981 return SDH_CRC7_ERROR;
\r
984 if(!(sdh->INTSTS & SDH_INTSTS_CRC16_Msk)) /* check CRC16 */
\r
986 return SDH_CRC16_ERROR;
\r
990 if(SDH_SDCmdAndRsp(sdh, 12UL, 0UL, 0UL)) /* stop command */
\r
992 return SDH_CRC7_ERROR;
\r
996 SDH_SDCommand(sdh, 7UL, 0UL);
\r
997 sdh->CTL |= SDH_CTL_CLK8OEN_Msk;
\r
998 while(sdh->CTL & SDH_CTL_CLK8OEN_Msk) {}
\r
1000 return Successful;
\r
1004 * @brief This function use to write data to SD card.
\r
1006 * @param[in] sdh The pointer of the specified SDH module.
\r
1007 * @param[in] pu8BufAddr The buffer to send the data to SD card.
\r
1008 * @param[in] u32StartSec The start write sector address.
\r
1009 * @param[in] u32SecCount The the write sector number of data.
\r
1011 * @return \ref SDH_SELECT_ERROR : u32SecCount is zero. \n
\r
1012 * \ref SDH_NO_SD_CARD : SD card be removed. \n
\r
1013 * \ref SDH_CRC_ERROR : CRC error happen. \n
\r
1014 * \ref SDH_CRC7_ERROR : CRC7 error happen. \n
\r
1015 * \ref Successful : Write data to SD card success.
\r
1017 uint32_t SDH_Write(SDH_T *sdh, uint8_t *pu8BufAddr, uint32_t u32StartSec, uint32_t u32SecCount)
\r
1019 uint32_t volatile u32IsSendCmd = (uint32_t)FALSE;
\r
1020 uint32_t volatile u32Reg;
\r
1021 uint32_t volatile i, u32Loop, u32Status;
\r
1025 /* M2351 is only support SDH0 */
\r
1028 /* --- check input parameters */
\r
1029 if(u32SecCount == 0UL)
\r
1031 return SDH_SELECT_ERROR;
\r
1034 if((u32Status = SDH_SDCmdAndRsp(sdh, 7UL, pSD->RCA, 0UL)) != Successful)
\r
1041 /* According to SD Spec v2.0, the write CMD block size MUST be 512, and the start address MUST be 512*n. */
\r
1042 sdh->BLEN = SDH_BLOCK_SIZE - 1UL; /* set the block size */
\r
1044 if((pSD->CardType == SDH_TYPE_SD_HIGH) || (pSD->CardType == SDH_TYPE_EMMC))
\r
1046 sdh->CMDARG = u32StartSec;
\r
1050 sdh->CMDARG = u32StartSec * SDH_BLOCK_SIZE; /* set start address for SD CMD */
\r
1053 sdh->DMASA = (uint32_t)pu8BufAddr;
\r
1054 u32Loop = u32SecCount / 255UL; /* the maximum block count is 0xFF=255 for register SDCR[BLK_CNT] */
\r
1055 while(u32Loop > 0UL)
\r
1057 g_u8SDDataReadyFlag = (uint8_t)FALSE;
\r
1058 u32Reg = sdh->CTL & 0xff00c080UL;
\r
1059 u32Reg = u32Reg | 0xff0000UL; /* set BLK_CNT to 0xFF=255 */
\r
1062 sdh->CTL = u32Reg | (25UL << 8) | (SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DOEN_Msk);
\r
1063 u32IsSendCmd = (uint32_t)TRUE;
\r
1067 sdh->CTL = u32Reg | SDH_CTL_DOEN_Msk;
\r
1070 while(!g_u8SDDataReadyFlag)
\r
1072 if(pSD->IsCardInsert == (uint8_t)FALSE)
\r
1074 return SDH_NO_SD_CARD;
\r
1078 if((sdh->INTSTS & SDH_INTSTS_CRCIF_Msk) != 0UL) /* check CRC */
\r
1080 sdh->INTSTS = SDH_INTSTS_CRCIF_Msk;
\r
1081 return SDH_CRC_ERROR;
\r
1086 u32Loop = u32SecCount % 255UL;
\r
1087 if(u32Loop != 0UL)
\r
1089 uint32_t u32RegTmp;
\r
1090 g_u8SDDataReadyFlag = (uint8_t)FALSE;
\r
1091 u32RegTmp = (u32Loop << 16);
\r
1092 u32Reg = (sdh->CTL & 0xff00c080UL) | u32RegTmp;
\r
1095 sdh->CTL = u32Reg | (25UL << 8) | (SDH_CTL_COEN_Msk | SDH_CTL_RIEN_Msk | SDH_CTL_DOEN_Msk);
\r
1096 u32IsSendCmd = (uint32_t)TRUE;
\r
1100 sdh->CTL = u32Reg | SDH_CTL_DOEN_Msk;
\r
1103 while(!g_u8SDDataReadyFlag)
\r
1105 if(pSD->IsCardInsert == (uint8_t)FALSE)
\r
1107 return SDH_NO_SD_CARD;
\r
1111 if((sdh->INTSTS & SDH_INTSTS_CRCIF_Msk) != 0UL) /* check CRC */
\r
1113 sdh->INTSTS = SDH_INTSTS_CRCIF_Msk;
\r
1114 return SDH_CRC_ERROR;
\r
1117 sdh->INTSTS = SDH_INTSTS_CRCIF_Msk;
\r
1119 if(SDH_SDCmdAndRsp(sdh, 12UL, 0UL, 0UL)) /* stop command */
\r
1121 return SDH_CRC7_ERROR;
\r
1125 SDH_SDCommand(sdh, 7UL, 0UL);
\r
1126 sdh->CTL |= SDH_CTL_CLK8OEN_Msk;
\r
1127 while(sdh->CTL & SDH_CTL_CLK8OEN_Msk) {}
\r
1129 return Successful;
\r
1133 /*@}*/ /* end of group SDH_EXPORTED_FUNCTIONS */
\r
1135 /*@}*/ /* end of group SDH_Driver */
\r
1137 /*@}*/ /* end of group Standard_Driver */
\r
1139 /*** (C) COPYRIGHT 2017 Nuvoton Technology Corp. ***/
\r