/******************************************************************************* * Function Name : Read_Memory * Description : Handle the Read operation from the microSD card. * Input : None. * Output : None. * Return : None. *******************************************************************************/ void Read_Memory(uint8_t lun, uint32_t Memory_Offset, uint32_t Transfer_Length) { static uint32_t Offset, Length; if (TransferState == TXFR_IDLE ) { Offset = Memory_Offset * Mass_Block_Size[lun]; Length = Transfer_Length * Mass_Block_Size[lun]; TransferState = TXFR_ONGOING; } if (TransferState == TXFR_ONGOING ) { if (!Block_Read_count) { MAL_Read(lun , Offset , Data_Buffer, Mass_Block_Size[lun]); USB_SIL_Write(EP1_IN, (uint8_t *)Data_Buffer, BULK_MAX_PACKET_SIZE); Block_Read_count = Mass_Block_Size[lun] - BULK_MAX_PACKET_SIZE; Block_offset = BULK_MAX_PACKET_SIZE; } else { USB_SIL_Write(EP1_IN, (uint8_t *)Data_Buffer + Block_offset, BULK_MAX_PACKET_SIZE); Block_Read_count -= BULK_MAX_PACKET_SIZE; Block_offset += BULK_MAX_PACKET_SIZE; } SetEPTxCount(ENDP1, BULK_MAX_PACKET_SIZE); #ifndef USE_STM3210C_EVAL SetEPTxStatus(ENDP1, EP_TX_VALID); #endif Offset += BULK_MAX_PACKET_SIZE; Length -= BULK_MAX_PACKET_SIZE; CSW.dDataResidue -= BULK_MAX_PACKET_SIZE; Led_RW_ON(); } if (Length == 0) { Block_Read_count = 0; Block_offset = 0; Offset = 0; Bot_State = BOT_DATA_IN_LAST; TransferState = TXFR_IDLE; Led_RW_OFF(); } }
/******************************************************************************* * Function Name : Read_Memory * Description : Handle the Read operation from the microSD card. * Input : None. * Output : None. * Return : None. *******************************************************************************/ void Read_Memory(uint8_t lun, uint32_t Memory_Offset, uint32_t Transfer_Length) { static uint64_t Offset, Length;//要支持大于4G的SD卡,必须使用long long(64位)数据类型 u8 STA;//新增一个定义 if (TransferState == TXFR_IDLE ) { Offset = (long long)Memory_Offset * Mass_Block_Size[lun]; Length = (long long)Transfer_Length * Mass_Block_Size[lun]; TransferState = TXFR_ONGOING; } if (TransferState == TXFR_ONGOING ) { if (!Block_Read_count) { STA=MAL_Read(lun ,Offset,Data_Buffer,Mass_Block_Size[lun]); if(STA)USB_STATUS_REG|=0X08;//SD卡读错误! USB_SIL_Write(EP1_IN, (uint8_t *)Data_Buffer, BULK_MAX_PACKET_SIZE); Block_Read_count = Mass_Block_Size[lun] - BULK_MAX_PACKET_SIZE; Block_offset = BULK_MAX_PACKET_SIZE; }else { USB_SIL_Write(EP1_IN, (uint8_t *)Data_Buffer + Block_offset, BULK_MAX_PACKET_SIZE); Block_Read_count -= BULK_MAX_PACKET_SIZE; Block_offset += BULK_MAX_PACKET_SIZE; } SetEPTxCount(ENDP1, BULK_MAX_PACKET_SIZE); SetEPTxStatus(ENDP1, EP_TX_VALID); Offset += BULK_MAX_PACKET_SIZE; Length -= BULK_MAX_PACKET_SIZE; CSW.dDataResidue -= BULK_MAX_PACKET_SIZE; Led_RW_ON(); } if (Length == 0) { Block_Read_count = 0; Block_offset = 0; Offset = 0; Bot_State = BOT_DATA_IN_LAST; TransferState = TXFR_IDLE; Led_RW_OFF(); } }
/******************************************************************************* * Function Name : Write_Memory * Description : Handle the Write operation to the microSD card. * Input : None. * Output : None. * Return : None. *******************************************************************************/ void Write_Memory (uint8_t lun, uint32_t Memory_Offset, uint32_t Transfer_Length) { static uint32_t W_Offset, W_Length; uint32_t temp = Counter + 64; if (TransferState == TXFR_IDLE ) { W_Offset = Memory_Offset * Mass_Block_Size[lun]; W_Length = Transfer_Length * Mass_Block_Size[lun]; TransferState = TXFR_ONGOING; } if (TransferState == TXFR_ONGOING ) { for (Idx = 0 ; Counter < temp; Counter++) { *((uint8_t *)Data_Buffer + Counter) = Bulk_Data_Buff[Idx++]; } W_Offset += Data_Len; W_Length -= Data_Len; if (!(W_Length % Mass_Block_Size[lun])) { Counter = 0; MAL_Write(lun , W_Offset - Mass_Block_Size[lun], Data_Buffer, Mass_Block_Size[lun]); } CSW.dDataResidue -= Data_Len; #ifndef STM32F10X_CL SetEPRxStatus(ENDP2, EP_RX_VALID); /* enable the next transaction*/ #endif /* STM32F10X_CL */ Led_RW_ON(); } if ((W_Length == 0) || (Bot_State == BOT_CSW_Send)) { Counter = 0; Set_CSW (CSW_CMD_PASSED, SEND_CSW_ENABLE); TransferState = TXFR_IDLE; Led_RW_OFF(); } }
/******************************************************************************* * Function Name : Read_Memory * Description : Handle the Read operation from the microSD card. * Input : None. * Output : None. * Return : None. *******************************************************************************/ void Read_Memory(u8 lun, u32 Memory_Offset, u32 Transfer_Length) { static u32 Offset, Length; if (TransferState == TXFR_IDLE ) { Offset = Memory_Offset * Mass_Block_Size[lun]; Length = Transfer_Length * Mass_Block_Size[lun]; TransferState = TXFR_ONGOING; } if (TransferState == TXFR_ONGOING ) { if (!Block_Read_count) { MAL_Read(lun , Offset , Data_Buffer, Mass_Block_Size[lun]); UserToPMABufferCopy((u8 *)Data_Buffer, ENDP1_TXADDR, BULK_MAX_PACKET_SIZE); Block_Read_count = Mass_Block_Size[lun] - BULK_MAX_PACKET_SIZE; Block_offset = BULK_MAX_PACKET_SIZE; } else { UserToPMABufferCopy((u8 *)Data_Buffer + Block_offset, ENDP1_TXADDR, BULK_MAX_PACKET_SIZE); Block_Read_count -= BULK_MAX_PACKET_SIZE; Block_offset += BULK_MAX_PACKET_SIZE; } SetEPTxCount(ENDP1, BULK_MAX_PACKET_SIZE); SetEPTxStatus(ENDP1, EP_TX_VALID); Offset += BULK_MAX_PACKET_SIZE; Length -= BULK_MAX_PACKET_SIZE; CSW.dDataResidue -= BULK_MAX_PACKET_SIZE; Led_RW_ON(); } if (Length == 0) { Block_Read_count = 0; Block_offset = 0; Offset = 0; Bot_State = BOT_DATA_IN_LAST; TransferState = TXFR_IDLE; Led_RW_OFF(); } }
/******************************************************************************* * Function Name : Write_Memory * Description : Handle the Write operation to the microSD card. * Input : None. * Output : None. * Return : None. *******************************************************************************/ void Write_Memory (uint8_t lun, uint32_t Memory_Offset, uint32_t Transfer_Length) { static uint64_t W_Offset, W_Length;//要支持大于4G的SD卡,必须使用long long(64位)数据类型 u8 STA;//新增一个定义 uint32_t temp = Counter + 64; if (TransferState == TXFR_IDLE ) { W_Offset = (long long)Memory_Offset * Mass_Block_Size[lun]; W_Length = (long long)Transfer_Length * Mass_Block_Size[lun]; TransferState = TXFR_ONGOING; } if (TransferState == TXFR_ONGOING ) { for (Idx = 0 ; Counter < temp; Counter++) { *((uint8_t *)Data_Buffer + Counter) = Bulk_Data_Buff[Idx++]; } W_Offset += Data_Len; W_Length -= Data_Len; if (!(W_Length % Mass_Block_Size[lun])) { Counter = 0; STA=MAL_Write(lun,W_Offset - Mass_Block_Size[lun],Data_Buffer,Mass_Block_Size[lun]); if(STA)USB_STATUS_REG|=0X04;//SD卡写错误! } CSW.dDataResidue -= Data_Len; SetEPRxStatus(ENDP2, EP_RX_VALID); /* enable the next transaction*/ Led_RW_ON(); } if ((W_Length == 0) || (Bot_State == BOT_CSW_Send)) { Counter = 0; Set_CSW (CSW_CMD_PASSED, SEND_CSW_ENABLE); TransferState = TXFR_IDLE; Led_RW_OFF(); } }