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1372 lines
42 KiB
1372 lines
42 KiB
/*
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* Copyright (c) 2015, Freescale Semiconductor, Inc.
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* Copyright 2016-2019 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <string.h>
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#include "fsl_sdspi.h"
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/*******************************************************************************
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* Definitons
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******************************************************************************/
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/*! @brief Card command maximum retry times value */
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#define SDSPI_TRANSFER_RETRY_TIMES (20000U)
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/*! @brief define SDSPI command code length */
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#define SDSPI_COMMAND_CODE_BYTE_LEN (6U)
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#define SDSPI_COMMAND_FORMAT_GET_INDEX(command) (((command) >> 8U) & 0xFFU)
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#define SDSPI_COMMAND_FORMAT_GET_RESPONSE_TYPE(command) ((command)&0xFFU)
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#define SDSPI_COMMAND_IDLE_CRC (0x95U)
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#define SDSPI_COMMAND_SEND_INTERFACE_CRC (0x87U)
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/*! @brief Reverse byte sequence in uint32_t */
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#define SWAP_WORD_BYTE_SEQUENCE(x) (__REV(x))
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/*******************************************************************************
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* Prototypes
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******************************************************************************/
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/*!
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* @brief Wait card to be ready state.
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*
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* @param host Host state.
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* @retval kStatus_SDSPI_ExchangeFailed Exchange data over SPI failed.
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* @retval kStatus_SDSPI_ResponseError Response is error.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_WaitReady(sdspi_host_t *host);
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#if SDSPI_CARD_CRC_PROTECTION_ENABLE
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/*!
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* @brief Calculate CRC7
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*
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* @param buffer Data buffer.
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* @param length Data length.
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* @param crc The orginal crc value.
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* @return Generated CRC7.
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*/
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static uint32_t SDSPI_GenerateCRC7(uint8_t *buffer, uint32_t length, uint32_t crc);
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#endif
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/*!
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* @brief Send command.
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*
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* @param host Host state.
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* @param command The command to be wrote.
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* @param arg command argument
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* @param response response buffer
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* @retval kStatus_SDSPI_WaitReadyFailed Wait ready failed.
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* @retval kStatus_SDSPI_ExchangeFailed Exchange data over SPI failed.
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* @retval kStatus_SDSPI_ResponseError Response is error.
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* @retval kStatus_Fail Send command failed.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_SendCommand(sdspi_host_t *host, uint32_t command, uint32_t arg, uint8_t *response);
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/*!
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* @brief Send GO_IDLE command.
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*
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* @param card Card descriptor.
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* @retval kStatus_SDSPI_ExchangeFailed Send timing byte failed.
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* @retval kStatus_SDSPI_SendCommandFailed Send command failed.
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* @retval kStatus_SDSPI_ResponseError Response is error.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_GoIdle(sdspi_card_t *card);
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/*!
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* @brief Send GET_INTERFACE_CONDITION command.
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*
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* This function checks card interface condition, which includes host supply voltage information and asks the card
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* whether it supports voltage.
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*
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* @param card Card descriptor.
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* @param flags The Host Capacity Support flag
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* @retval kStatus_SDSPI_SendCommandFailed Send command failed.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_SendInterfaceCondition(sdspi_card_t *card, uint32_t *flags);
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/*!
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* @brief Send SEND_APPLICATION_COMMAND command.
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*
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* @param card Card descriptor.
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* @retval kStatus_SDSPI_SendCommandFailed Send command failed.
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* @retval kStatus_SDSPI_ResponseError Response is error.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_SendApplicationCmd(sdspi_card_t *card);
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/*!
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* @brief Send GET_OPERATION_CONDITION command.
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*
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* @param card Card descriptor.
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* @param argument Operation condition.
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* @retval kStatus_Timeout Timeout.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_ApplicationSendOperationCondition(sdspi_card_t *card, uint32_t argument);
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/*!
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* @brief Send READ_OCR command to get OCR register content.
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*
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* @param card Card descriptor.
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* @retval kStatus_SDSPI_SendCommandFailed Send command failed.
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* @retval kStatus_SDSPI_ResponseError Response is error.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_ReadOcr(sdspi_card_t *card);
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/*!
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* @brief Send SET_BLOCK_SIZE command.
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*
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* This function sets the block length in bytes for SDSC cards. For SDHC cards, it does not affect memory
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* read or write commands, always 512 bytes fixed block length is used.
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* @param card Card descriptor.
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* @param blockSize Block size.
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* @retval kStatus_SDSPI_SendCommandFailed Send command failed.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_SetBlockSize(sdspi_card_t *card, uint32_t blockSize);
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/*!
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* @brief Read data from card
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*
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* @param host Host state.
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* @param buffer Buffer to save data.
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* @param size The data size to read.
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* @retval kStatus_SDSPI_ResponseError Response is error.
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* @retval kStatus_SDSPI_ExchangeFailed Exchange data over SPI failed.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_Read(sdspi_host_t *host, uint8_t *buffer, uint32_t size);
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/*!
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* @brief Decode CSD register
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*
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* @param card Card descriptor.
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* @param rawCsd Raw CSD register content.
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*/
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static void SDSPI_DecodeCsd(sdspi_card_t *card, uint8_t *rawCsd);
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/*!
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* @brief Send GET-CSD command.
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*
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* @param card Card descriptor.
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* @retval kStatus_SDSPI_SendCommandFailed Send command failed.
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* @retval kStatus_SDSPI_ReadFailed Read data blocks failed.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_SendCsd(sdspi_card_t *card);
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/*!
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* @brief Decode raw CID register.
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* In our sdspi init function, this function is removed for better code size, if id information
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* is needed, you can call it after the init function directly.
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* @param card Card descriptor.
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* @param rawCid Raw CID register content.
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*/
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static void SDSPI_DecodeCid(sdspi_card_t *card, uint8_t *rawCid);
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/*!
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* @brief Decode SCR register.
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*
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* @param card Card descriptor.
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* @param rawScr Raw SCR register content.
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*/
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static void SDSPI_DecodeScr(sdspi_card_t *card, uint8_t *rawScr);
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/*!
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* @brief Send SEND_SCR command.
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*
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* @param card Card descriptor.
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* @retval kStatus_SDSPI_SendCommandFailed Send command failed.
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* @retval kStatus_SDSPI_ReadFailed Read data blocks failed.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_SendScr(sdspi_card_t *card);
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/*!
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* @brief Send STOP_TRANSMISSION command to card to stop ongoing data transferring.
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*
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* @param card Card descriptor.
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* @retval kStatus_SDSPI_SendCommandFailed Send command failed.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_StopTransmission(sdspi_card_t *card);
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/*!
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* @brief Write data to card
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*
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* @param host Host state.
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* @param buffer Data to send.
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* @param size Data size.
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* @param token The data token.
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* @retval kStatus_SDSPI_WaitReadyFailed Card is busy error.
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* @retval kStatus_SDSPI_ExchangeFailed Exchange data over SPI failed.
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* @retval kStatus_InvalidArgument Invalid argument.
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* @retval kStatus_SDSPI_ResponseError Response is error.
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* @retval kStatus_Success Operate successfully.
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*/
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static status_t SDSPI_Write(sdspi_host_t *host, uint8_t *buffer, uint32_t size, uint8_t token);
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/*!
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* @brief select function.
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*
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* @param card card descriptor.
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* @param group function group.
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* @param function function name.
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*/
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static status_t SDSPI_SelectFunction(sdspi_card_t *card, uint32_t group, uint32_t function);
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/*!
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* @brief Send SWITCH_FUNCTION command to switch the card function group.
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*
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* @param card card descriptor.
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* @param mode 0 to check function group, 1 to switch function group.
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* @param group function group.
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* @param number function name.
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* @status buffer to recieve function status.
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*/
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static status_t SDSPI_SwitchFunction(
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sdspi_card_t *card, uint32_t mode, uint32_t group, uint32_t number, uint32_t *status);
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/*!
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* @brief Erase data for the given block range..
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*
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* @param card card descriptor.
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* @param startBlock start block address.
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* @param blockCount the number of block to be erase.
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*/
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static status_t SDSPI_Erase(sdspi_card_t *card, uint32_t startBlock, uint32_t blockCount);
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/*******************************************************************************
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* Variables
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******************************************************************************/
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/*******************************************************************************
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* Code
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******************************************************************************/
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static status_t SDSPI_WaitReady(sdspi_host_t *host)
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{
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uint8_t response;
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uint8_t timingByte = 0xFFU; /* The byte need to be sent as read/write data block timing requirement */
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uint32_t retryCount = SDSPI_TRANSFER_RETRY_TIMES;
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do
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{
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if (kStatus_Success != host->exchange(&timingByte, &response, 1U))
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{
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return kStatus_SDSPI_ExchangeFailed;
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}
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retryCount--;
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} while ((response != 0xFFU) && (retryCount != 0U));
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/* Response 0xFF means card is still busy. */
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if (response != 0xFFU)
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{
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return kStatus_SDSPI_ResponseError;
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}
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return kStatus_Success;
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}
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#if SDSPI_CARD_CRC_PROTECTION_ENABLE
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static uint32_t SDSPI_GenerateCRC7(uint8_t *buffer, uint32_t length, uint32_t crc)
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{
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uint32_t index;
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static const uint8_t crcTable[] = {0x00U, 0x09U, 0x12U, 0x1BU, 0x24U, 0x2DU, 0x36U, 0x3FU,
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0x48U, 0x41U, 0x5AU, 0x53U, 0x6CU, 0x65U, 0x7EU, 0x77U};
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while (length != 0U)
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{
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index = (((crc >> 3U) & 0x0FU) ^ ((*buffer) >> 4U));
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crc = ((crc << 4U) ^ crcTable[index]);
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index = (((crc >> 3U) & 0x0FU) ^ ((*buffer) & 0x0FU));
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crc = ((crc << 4U) ^ crcTable[index]);
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buffer++;
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length--;
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}
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return (crc & 0x7FU);
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}
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static uint16_t SDSPI_GenerateCRC16(uint8_t *buffer, uint32_t length, uint16_t crc)
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{
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while (length != 0U)
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{
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crc = (uint8_t)(crc >> 8U) | (crc << 8U);
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crc ^= *buffer++;
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crc ^= (uint8_t)(crc & 0xffU) >> 4U;
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crc ^= (crc << 8U) << 4U;
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crc ^= ((crc & 0xffU) << 4U) << 1U;
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length--;
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}
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return (crc >> 8U) | (crc << 8U);
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}
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#endif
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static status_t SDSPI_SendCommand(sdspi_host_t *host, uint32_t command, uint32_t arg, uint8_t *response)
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{
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assert(host != NULL);
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assert(response != NULL);
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uint32_t i;
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uint8_t timingByte = 0xFFU; /* The byte need to be sent as read/write data block timing requirement */
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uint8_t buffer[SDSPI_COMMAND_CODE_BYTE_LEN] = {0U};
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uint32_t responseType = SDSPI_COMMAND_FORMAT_GET_RESPONSE_TYPE(command);
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uint8_t index = (uint8_t)SDSPI_COMMAND_FORMAT_GET_INDEX(command);
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if ((kStatus_Success != SDSPI_WaitReady(host)) && (index != (uint8_t)kSDMMC_GoIdleState))
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{
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return kStatus_SDSPI_WaitReadyFailed;
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}
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/* Send command. */
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buffer[0U] = (index | 0x40U);
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buffer[1U] = (uint8_t)((arg >> 24U) & 0xFFU);
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buffer[2U] = (uint8_t)((arg >> 16U) & 0xFFU);
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buffer[3U] = (uint8_t)((arg >> 8U) & 0xFFU);
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buffer[4U] = (uint8_t)(arg & 0xFFU);
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#if SDSPI_CARD_CRC_PROTECTION_ENABLE
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buffer[5U] = ((SDSPI_GenerateCRC7(buffer, 5U, 0U) << 1U) | 1U);
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#else
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if (index == (uint8_t)kSDMMC_GoIdleState)
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{
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buffer[5U] = SDSPI_COMMAND_IDLE_CRC;
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}
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else if (index == (uint8_t)kSD_SendInterfaceCondition)
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{
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buffer[5U] = SDSPI_COMMAND_SEND_INTERFACE_CRC;
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}
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else
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{
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/* Intentional empty */
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}
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#endif
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if (host->exchange(buffer, NULL, SDSPI_COMMAND_CODE_BYTE_LEN) != kStatus_Success)
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{
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return kStatus_SDSPI_ExchangeFailed;
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}
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/* Wait for the response coming, the left most bit which is transfered first in first response byte is 0 */
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for (i = 0U; i < 9U; i++)
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{
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if (kStatus_Success != host->exchange(&timingByte, &response[0U], 1U))
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{
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return kStatus_SDSPI_ExchangeFailed;
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}
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/* Check if response 0 coming. */
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if (0U == (response[0U] & 0x80U))
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{
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break;
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}
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}
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if ((response[0U] & 0x80U) != 0U) /* Max index byte is high means response comming. */
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{
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return kStatus_SDSPI_ResponseError;
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}
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if (responseType != (uint32_t)kSDSPI_ResponseTypeR1)
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{
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if (responseType == (uint32_t)kSDSPI_ResponseTypeR1b)
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{
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if (kStatus_Success != SDSPI_WaitReady(host))
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{
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return kStatus_SDSPI_WaitReadyFailed;
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}
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}
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else if (responseType == (uint32_t)kSDSPI_ResponseTypeR2)
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{
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if (kStatus_Success != host->exchange(&timingByte, &(response[1U]), 1U))
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{
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return kStatus_SDSPI_ExchangeFailed;
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}
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}
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else if ((responseType == (uint32_t)kSDSPI_ResponseTypeR3) || (responseType == (uint32_t)kSDSPI_ResponseTypeR7))
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{
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/* Left 4 bytes in response type R3 and R7(total 5 bytes in SPI mode) */
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if (kStatus_Success != host->exchange(&timingByte, &(response[1U]), 4U))
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{
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return kStatus_SDSPI_ExchangeFailed;
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}
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}
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else
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{
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/* Intentional empty */
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}
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}
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return kStatus_Success;
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}
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#if SDSPI_CARD_CRC_PROTECTION_ENABLE
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status_t SDSPI_CommandCrc(sdspi_card_t *card, bool enable)
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{
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uint8_t response = 0U;
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if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdCrc, enable, &response))
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{
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return kStatus_SDSPI_SendCommandFailed;
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}
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return kStatus_Success;
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}
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#endif
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static status_t SDSPI_GoIdle(sdspi_card_t *card)
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{
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assert(card != NULL);
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assert(card->host != NULL);
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uint8_t response = 0U;
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uint32_t retryCount = SDSPI_TRANSFER_RETRY_TIMES;
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/* SD card will enter SPI mode if the CS is asserted (negative) during the reception of the reset command (CMD0)
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and the card will be IDLE state. */
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do
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{
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if ((kStatus_Success == SDSPI_SendCommand(card->host, kSDSPI_CmdGoIdle, 0U, &response)) &&
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(response == (uint8_t)kSDSPI_R1InIdleStateFlag))
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{
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return kStatus_Success;
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}
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} while (--retryCount != 0U);
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return kStatus_SDSPI_SendCommandFailed;
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}
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static status_t SDSPI_SendInterfaceCondition(sdspi_card_t *card, uint32_t *flags)
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{
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assert(card != NULL);
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assert(card->host != NULL);
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uint8_t response[5U] = {0U};
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uint32_t i = SDSPI_TRANSFER_RETRY_TIMES;
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do
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{
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/* CMD8 is used to check if the card accept the current supply voltage and check if
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the card support CMD8 */
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if (kStatus_Success == SDSPI_SendCommand(card->host, kSDSPI_CmdSendInterfaceCondition, 0x1AAU, response))
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{
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/* not support CMD8, clear hcs flag */
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if ((response[0U] & (uint8_t)kSDSPI_R1IllegalCommandFlag) != 0U)
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{
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return kStatus_Success;
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}
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/* if VCA is set and pattern is match, then break */
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if ((response[3U] == 0x1U) && (response[4U] == 0xAAU))
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{
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*flags |= SDMMC_MASK(kSD_OcrHostCapacitySupportFlag);
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return kStatus_Success;
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}
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/* if VCA in the reponse not set, then the card not support current voltage, return fail */
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else if (response[3U] == 0U)
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{
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return kStatus_SDSPI_InvalidVoltage;
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}
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else
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{
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/* Intentional empty */
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}
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}
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else
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{
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return kStatus_SDSPI_SendCommandFailed;
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}
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} while (--i != 0U);
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return kStatus_Fail;
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}
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static status_t SDSPI_SendApplicationCmd(sdspi_card_t *card)
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{
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assert(card != NULL);
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assert(card->host != NULL);
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uint8_t response = 0U;
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|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdApplicationCmd, 0U, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
if ((response != 0U) && (0U == (response & (uint8_t)kSDSPI_R1InIdleStateFlag)))
|
|
{
|
|
return kStatus_SDSPI_ResponseError;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_ApplicationSendOperationCondition(sdspi_card_t *card, uint32_t argument)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
|
|
uint8_t response = 0U;
|
|
uint32_t i = SDSPI_TRANSFER_RETRY_TIMES;
|
|
|
|
do
|
|
{
|
|
if (kStatus_Success == SDSPI_SendApplicationCmd(card))
|
|
{
|
|
if (kStatus_Success ==
|
|
SDSPI_SendCommand(card->host, kSDSPI_CmdAppSendOperationCondition, argument, &response))
|
|
{
|
|
if ((response & (uint8_t)kSDSPI_R1InIdleStateFlag) == 0U)
|
|
{
|
|
return kStatus_Success;
|
|
}
|
|
}
|
|
}
|
|
|
|
} while (--i != 0U);
|
|
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
static status_t SDSPI_ReadOcr(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
|
|
uint32_t i = 0U;
|
|
uint8_t response[5U] = {0U};
|
|
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdReadOcr, 0U, response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
if (response[0U] != 0U)
|
|
{
|
|
return kStatus_SDSPI_ResponseError;
|
|
}
|
|
|
|
/* Switch the bytes sequence. All register's content is transferred from highest byte to lowest byte. */
|
|
card->ocr = 0U;
|
|
for (i = 4U; i > 0U; i--)
|
|
{
|
|
card->ocr |= (uint32_t)response[i] << ((4U - i) * 8U);
|
|
}
|
|
|
|
if ((card->ocr & SDMMC_MASK(kSD_OcrCardCapacitySupportFlag)) != 0U)
|
|
{
|
|
card->flags |= (uint32_t)kSDSPI_SupportHighCapacityFlag;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_SetBlockSize(sdspi_card_t *card, uint32_t blockSize)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
|
|
uint8_t response = 0U;
|
|
uint32_t i = SDSPI_TRANSFER_RETRY_TIMES;
|
|
|
|
do
|
|
{
|
|
if (kStatus_Success == SDSPI_SendCommand(card->host, kSDSPI_CmdSetBlockLength, blockSize, &response))
|
|
{
|
|
return kStatus_Success;
|
|
}
|
|
} while (--i != 0U);
|
|
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
static void SDSPI_DecodeCsd(sdspi_card_t *card, uint8_t *rawCsd)
|
|
{
|
|
assert(rawCsd != NULL);
|
|
assert(card != NULL);
|
|
|
|
sd_csd_t *csd = &(card->csd);
|
|
|
|
csd->csdStructure = (rawCsd[0U] >> 6U);
|
|
csd->dataReadAccessTime1 = rawCsd[1U];
|
|
csd->dataReadAccessTime2 = rawCsd[2U];
|
|
csd->transferSpeed = rawCsd[3U];
|
|
csd->cardCommandClass = (uint16_t)(((uint32_t)rawCsd[4U] << 4U) | ((uint32_t)rawCsd[5U] >> 4U));
|
|
csd->readBlockLength = ((rawCsd)[5U] & 0xFU);
|
|
if ((rawCsd[6U] & 0x80U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdReadBlockPartialFlag;
|
|
}
|
|
if ((rawCsd[6U] & 0x40U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdWriteBlockMisalignFlag;
|
|
}
|
|
if ((rawCsd[6U] & 0x20U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdReadBlockMisalignFlag;
|
|
}
|
|
if ((rawCsd[6U] & 0x10U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdDsrImplementedFlag;
|
|
}
|
|
|
|
/* Some fileds is different when csdStructure is different. */
|
|
if (csd->csdStructure == 0U) /* Decode the bits when CSD structure is version 1.0 */
|
|
{
|
|
csd->deviceSize =
|
|
((((uint32_t)rawCsd[6] & 0x3U) << 10U) | ((uint32_t)rawCsd[7U] << 2U) | ((uint32_t)rawCsd[8U] >> 6U));
|
|
csd->readCurrentVddMin = ((rawCsd[8U] >> 3U) & 7U);
|
|
csd->readCurrentVddMax = (rawCsd[8U] >> 7U);
|
|
csd->writeCurrentVddMin = ((rawCsd[9U] >> 5U) & 7U);
|
|
csd->writeCurrentVddMax = (rawCsd[9U] >> 2U);
|
|
csd->deviceSizeMultiplier = (((rawCsd[9U] & 3U) << 1U) | (rawCsd[10U] >> 7U));
|
|
|
|
card->blockCount = (csd->deviceSize + 1U) << (csd->deviceSizeMultiplier + 2U);
|
|
card->blockSize = (1UL << (csd->readBlockLength));
|
|
|
|
if (card->blockSize != FSL_SDSPI_DEFAULT_BLOCK_SIZE)
|
|
{
|
|
card->blockCount = (card->blockCount * card->blockSize);
|
|
card->blockSize = FSL_SDSPI_DEFAULT_BLOCK_SIZE;
|
|
card->blockCount = (card->blockCount / card->blockSize);
|
|
}
|
|
/* CSD V1.0 support SDSC card only */
|
|
card->flags |= (uint32_t)kSDSPI_SupportSdscFlag;
|
|
}
|
|
else if (csd->csdStructure == 1U) /* Decode the bits when CSD structure is version 2.0 */
|
|
{
|
|
card->blockSize = FSL_SDSPI_DEFAULT_BLOCK_SIZE;
|
|
csd->deviceSize =
|
|
((((uint32_t)rawCsd[7U] & 0x3FU) << 16U) | ((uint32_t)rawCsd[8U] << 8U) | ((uint32_t)rawCsd[9U]));
|
|
if (csd->deviceSize >= 0xFFFFU)
|
|
{
|
|
card->flags |= (uint32_t)kSDSPI_SupportSdxcFlag;
|
|
}
|
|
else
|
|
{
|
|
card->flags |= (uint32_t)kSDSPI_SupportSdhcFlag;
|
|
}
|
|
card->blockCount = ((csd->deviceSize + 1U) * 1024U);
|
|
}
|
|
else
|
|
{
|
|
/* Intentional empty */
|
|
}
|
|
|
|
if (((rawCsd[10U] >> 6U) & 1U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdEraseBlockEnabledFlag;
|
|
}
|
|
csd->eraseSectorSize = (((rawCsd[10U] & 0x3FU) << 1U) | (rawCsd[11U] >> 7U));
|
|
csd->writeProtectGroupSize = (rawCsd[11U] & 0x7FU);
|
|
if ((rawCsd[12U] >> 7U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdWriteProtectGroupEnabledFlag;
|
|
}
|
|
csd->writeSpeedFactor = ((rawCsd[12U] >> 2U) & 7U);
|
|
csd->writeBlockLength = (((rawCsd[12U] & 3U) << 2U) | (rawCsd[13U] >> 6U));
|
|
if (((rawCsd[13U] >> 5U) & 1U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdWriteBlockPartialFlag;
|
|
}
|
|
if ((rawCsd[14U] >> 7U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdFileFormatGroupFlag;
|
|
}
|
|
if (((rawCsd[14U] >> 6U) & 1U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdCopyFlag;
|
|
}
|
|
if (((rawCsd[14U] >> 5U) & 1U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdPermanentWriteProtectFlag;
|
|
}
|
|
if (((rawCsd[14U] >> 4U) & 1U) != 0U)
|
|
{
|
|
csd->flags |= (uint16_t)kSD_CsdTemporaryWriteProtectFlag;
|
|
}
|
|
csd->fileFormat = ((rawCsd[14U] >> 2U) & 3U);
|
|
}
|
|
|
|
static status_t SDSPI_SendCsd(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
|
|
uint8_t response = 0U;
|
|
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdSendCsd, 0U, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
(void)memset(card->internalBuffer, 0, 16U);
|
|
|
|
if (kStatus_Success != SDSPI_Read(card->host, card->internalBuffer, 16U))
|
|
{
|
|
return kStatus_SDSPI_ReadFailed;
|
|
}
|
|
|
|
SDSPI_DecodeCsd(card, card->internalBuffer);
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static void SDSPI_DecodeCid(sdspi_card_t *card, uint8_t *rawCid)
|
|
{
|
|
assert(card != NULL);
|
|
assert(rawCid != NULL);
|
|
|
|
sd_cid_t *cid = &(card->cid);
|
|
cid->manufacturerID = rawCid[0U];
|
|
cid->applicationID = (uint16_t)(((uint32_t)rawCid[1U] << 8U) | (uint32_t)(rawCid[2U]));
|
|
(void)memcpy(cid->productName, &rawCid[3U], SD_PRODUCT_NAME_BYTES);
|
|
cid->productVersion = rawCid[8U];
|
|
cid->productSerialNumber = (((uint32_t)rawCid[9U] << 24U) | ((uint32_t)rawCid[10U] << 16U) |
|
|
((uint32_t)rawCid[11U] << 8U) | ((uint32_t)rawCid[12U]));
|
|
cid->manufacturerData = (uint16_t)((((uint32_t)rawCid[13U] & 0x0FU) << 8U) | ((uint32_t)rawCid[14U]));
|
|
}
|
|
|
|
status_t SDSPI_SendCid(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
|
|
uint8_t response = 0U;
|
|
|
|
(void)memset(card->internalBuffer, 0, 16U);
|
|
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdSendCid, 0U, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
if (kStatus_Success != (SDSPI_Read(card->host, card->internalBuffer, 16U)))
|
|
{
|
|
return kStatus_SDSPI_ReadFailed;
|
|
}
|
|
|
|
SDSPI_DecodeCid(card, card->internalBuffer);
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static void SDSPI_DecodeScr(sdspi_card_t *card, uint8_t *rawScr)
|
|
{
|
|
assert(card != NULL);
|
|
assert(rawScr != NULL);
|
|
|
|
sd_scr_t *scr = &(card->scr);
|
|
scr->scrStructure = ((rawScr[0U] & 0xF0U) >> 4U);
|
|
scr->sdSpecification = (rawScr[0U] & 0x0FU);
|
|
if ((rawScr[1U] & 0x80U) != 0U)
|
|
{
|
|
scr->flags |= (uint16_t)kSD_ScrDataStatusAfterErase;
|
|
}
|
|
scr->sdSecurity = ((rawScr[1U] & 0x70U) >> 4U);
|
|
scr->sdBusWidths = (rawScr[1U] & 0x0FU);
|
|
if ((rawScr[2U] & 0x80U) != 0U)
|
|
{
|
|
scr->flags |= (uint16_t)kSD_ScrSdSpecification3;
|
|
}
|
|
scr->extendedSecurity = ((rawScr[2U] & 0x78U) >> 3U);
|
|
scr->commandSupport = (rawScr[3U] & 0x03U);
|
|
}
|
|
|
|
static status_t SDSPI_SendScr(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
|
|
uint8_t response = 0U;
|
|
|
|
(void)memset(card->internalBuffer, 0, 8U);
|
|
|
|
if (kStatus_Success != SDSPI_SendApplicationCmd(card))
|
|
{
|
|
return kStatus_SDSPI_SendApplicationCommandFailed;
|
|
}
|
|
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdSendScr, 0U, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
if (kStatus_Success != (SDSPI_Read(card->host, card->internalBuffer, 8U)))
|
|
{
|
|
return kStatus_SDSPI_ReadFailed;
|
|
}
|
|
|
|
SDSPI_DecodeScr(card, card->internalBuffer);
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_StopTransmission(sdspi_card_t *card)
|
|
{
|
|
uint8_t response = 0U;
|
|
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdStopTransfer, 0U, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_Write(sdspi_host_t *host, uint8_t *buffer, uint32_t size, uint8_t token)
|
|
{
|
|
assert(host != NULL);
|
|
assert(host->exchange != NULL);
|
|
|
|
uint8_t response;
|
|
uint16_t timingByte = 0xFFFFU; /* The byte need to be sent as read/write data block timing requirement */
|
|
|
|
if (kStatus_Success != SDSPI_WaitReady(host))
|
|
{
|
|
return kStatus_SDSPI_WaitReadyFailed;
|
|
}
|
|
|
|
/* Write data token. */
|
|
if (host->exchange(&token, NULL, 1U) != kStatus_Success)
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
if (token == (uint8_t)kSDSPI_DataTokenStopTransfer)
|
|
{
|
|
return kStatus_Success;
|
|
}
|
|
|
|
if ((0U == size) || (NULL == buffer))
|
|
{
|
|
return kStatus_InvalidArgument;
|
|
}
|
|
|
|
/* Write data. */
|
|
if (kStatus_Success != host->exchange(buffer, NULL, size))
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
|
|
#if SDSPI_CARD_CRC_PROTECTION_ENABLE
|
|
timingByte = SDSPI_GenerateCRC16(buffer, size, 0U);
|
|
#endif
|
|
|
|
/* Get the last two bytes CRC */
|
|
if (host->exchange((uint8_t *)&timingByte, NULL, 2U) != kStatus_Success)
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
/* Get the response token. */
|
|
if (host->exchange((uint8_t *)&timingByte, &response, 1U) != kStatus_Success)
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
if ((response & SDSPI_DATA_RESPONSE_TOKEN_MASK) != (uint8_t)kSDSPI_DataResponseTokenAccepted)
|
|
{
|
|
return kStatus_SDSPI_ResponseError;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_Read(sdspi_host_t *host, uint8_t *buffer, uint32_t size)
|
|
{
|
|
assert(host != NULL);
|
|
assert(host->exchange != NULL);
|
|
assert(buffer != NULL);
|
|
|
|
uint8_t response;
|
|
uint32_t i = SDSPI_TRANSFER_RETRY_TIMES;
|
|
uint16_t timingByte = 0xFFFFU; /* The byte need to be sent as read/write data block timing requirement */
|
|
uint16_t crc = 0U;
|
|
|
|
if (size == 0U)
|
|
{
|
|
return kStatus_InvalidArgument;
|
|
}
|
|
|
|
(void)memset(buffer, 0xFF, size);
|
|
|
|
/* Wait data token comming */
|
|
do
|
|
{
|
|
if (kStatus_Success != host->exchange((uint8_t *)&timingByte, &response, 1U))
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
|
|
i--;
|
|
|
|
} while ((response == 0xFFU) && (i != 0U));
|
|
|
|
/* Check data token and exchange data. */
|
|
if (response != (uint8_t)kSDSPI_DataTokenBlockRead)
|
|
{
|
|
return kStatus_SDSPI_ResponseError;
|
|
}
|
|
if (host->exchange(buffer, buffer, size) != kStatus_Success)
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
|
|
/* Get 16 bit CRC */
|
|
if (kStatus_Success != host->exchange((uint8_t *)&timingByte, (uint8_t *)&crc, 2U))
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_Erase(sdspi_card_t *card, uint32_t startBlock, uint32_t blockCount)
|
|
{
|
|
assert(card != NULL);
|
|
assert(blockCount != 0U);
|
|
|
|
uint8_t response = 0U;
|
|
uint32_t eraseBlockStart;
|
|
uint32_t eraseBlockEnd;
|
|
|
|
if (kStatus_Success != SDSPI_WaitReady(card->host))
|
|
{
|
|
return kStatus_SDSPI_WaitReadyFailed;
|
|
}
|
|
|
|
eraseBlockStart =
|
|
(card->flags & (uint32_t)kSDSPI_SupportHighCapacityFlag) == 0U ? (startBlock * card->blockSize) : startBlock;
|
|
eraseBlockEnd =
|
|
eraseBlockStart +
|
|
((card->flags & (uint32_t)kSDSPI_SupportHighCapacityFlag) == 0U ? card->blockSize : 1U) * (blockCount - 1U);
|
|
|
|
/* set erase start address */
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdWrBlkEraseStart, eraseBlockStart, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
/* set erase end address */
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdWrBlkEraseEnd, eraseBlockEnd, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
/* start erase */
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdWrBlkErase, 0U, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_SwitchFunction(
|
|
sdspi_card_t *card, uint32_t mode, uint32_t group, uint32_t number, uint32_t *status)
|
|
{
|
|
assert(card != NULL);
|
|
assert(status != NULL);
|
|
|
|
uint8_t response = 0u;
|
|
uint32_t argument = 0U;
|
|
|
|
argument = (mode << 31U | 0x00FFFFFFU);
|
|
argument &= ~((uint32_t)(0xFU) << (group * 4U));
|
|
argument |= (number << (group * 4U));
|
|
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdSwitch, argument, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
if (kStatus_Success != (SDSPI_Read(card->host, (uint8_t *)status, 64U)))
|
|
{
|
|
return kStatus_SDSPI_ReadFailed;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_SelectFunction(sdspi_card_t *card, uint32_t group, uint32_t function)
|
|
{
|
|
assert(card != NULL);
|
|
|
|
uint32_t functionStatus[16U] = {0U};
|
|
uint16_t functionGroupInfo[6U] = {0};
|
|
uint32_t currentFunctionStatus = 0U;
|
|
|
|
/* check if card support CMD6 */
|
|
if (0U == (card->csd.cardCommandClass & (uint16_t)kSDMMC_CommandClassSwitch))
|
|
{
|
|
return kStatus_SDSPI_NotSupportYet;
|
|
}
|
|
|
|
/* Check if card support high speed mode. */
|
|
if (kStatus_Success != SDSPI_SwitchFunction(card, (uint32_t)kSD_SwitchCheck, group, function, functionStatus))
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
/* In little endian mode, SD bus byte transferred first is the byte stored in lowest byte position in
|
|
a word which will cause 4 byte's sequence in a word is not consistent with their original sequence from
|
|
card. So the sequence of 4 bytes received in a word should be converted. */
|
|
functionStatus[0U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[0U]);
|
|
functionStatus[1U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[1U]);
|
|
functionStatus[2U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[2U]);
|
|
functionStatus[3U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[3U]);
|
|
functionStatus[4U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[4U]);
|
|
|
|
/* -functionStatus[0U]---bit511~bit480;
|
|
-functionStatus[1U]---bit479~bit448;
|
|
-functionStatus[2U]---bit447~bit416;
|
|
-functionStatus[3U]---bit415~bit384;
|
|
-functionStatus[4U]---bit383~bit352;
|
|
According to the "switch function status[bits 511~0]" return by switch command in mode "check function":
|
|
-Check if function 1(high speed) in function group 1 is supported by checking if bit 401 is set;
|
|
-check if function 1 is ready and can be switched by checking if bits 379~376 equal value 1;
|
|
*/
|
|
functionGroupInfo[5U] = (uint16_t)functionStatus[0U];
|
|
functionGroupInfo[4U] = (uint16_t)(functionStatus[1U] >> 16U);
|
|
functionGroupInfo[3U] = (uint16_t)(functionStatus[1U]);
|
|
functionGroupInfo[2U] = (uint16_t)(functionStatus[2U] >> 16U);
|
|
functionGroupInfo[1U] = (uint16_t)(functionStatus[2U]);
|
|
functionGroupInfo[0U] = (uint16_t)(functionStatus[3U] >> 16U);
|
|
currentFunctionStatus = ((functionStatus[3U] & 0xFFU) << 8U) | (functionStatus[4U] >> 24U);
|
|
|
|
/* check if function is support */
|
|
if (((functionGroupInfo[group] & (uint16_t)(1UL << function)) == 0U) ||
|
|
((currentFunctionStatus >> (group * 4U)) & 0xFU) != function)
|
|
{
|
|
return kStatus_SDSPI_NotSupportYet;
|
|
}
|
|
|
|
/* Switch to high speed mode. */
|
|
if (kStatus_Success != SDSPI_SwitchFunction(card, (uint32_t)kSD_SwitchSet, group, function, functionStatus))
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
/* In little endian mode is little endian, SD bus byte transferred first is the byte stored in lowest byte
|
|
position in a word which will cause 4 byte's sequence in a word is not consistent with their original
|
|
sequence from card. So the sequence of 4 bytes received in a word should be converted. */
|
|
functionStatus[3U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[3U]);
|
|
functionStatus[4U] = SWAP_WORD_BYTE_SEQUENCE(functionStatus[4U]);
|
|
|
|
/* According to the "switch function status[bits 511~0]" return by switch command in mode "set function":
|
|
-check if group 1 is successfully changed to function 1 by checking if bits 379~376 equal value 1;
|
|
*/
|
|
currentFunctionStatus = ((functionStatus[3U] & 0xFFU) << 8U) | (functionStatus[4U] >> 24U);
|
|
|
|
if (((currentFunctionStatus >> (group * 4U)) & 0xFU) != function)
|
|
{
|
|
return kStatus_SDSPI_SwitchCmdFail;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
static status_t SDSPI_SendCardActive(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
|
|
/* Send 80 clocks to active card */
|
|
(void)memset(card->internalBuffer, 0, 10U);
|
|
|
|
if (card->host->csActivePolarity != NULL)
|
|
{
|
|
card->host->csActivePolarity(kSDSPI_CsActivePolarityHigh);
|
|
}
|
|
|
|
if (kStatus_Success != card->host->exchange(NULL, card->internalBuffer, 10U))
|
|
{
|
|
return kStatus_SDSPI_ExchangeFailed;
|
|
}
|
|
|
|
if (card->host->csActivePolarity != NULL)
|
|
{
|
|
card->host->csActivePolarity(kSDSPI_CsActivePolarityLow);
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
status_t SDSPI_Init(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
assert(card->host->setFrequency != NULL);
|
|
assert(card->host->exchange != NULL);
|
|
assert(card->host->init != NULL);
|
|
|
|
uint32_t applicationCommand41Argument = 0U;
|
|
|
|
card->host->init();
|
|
|
|
/* Card must be initialized in 400KHZ. */
|
|
if (card->host->setFrequency(SDMMC_CLOCK_400KHZ) != kStatus_Success)
|
|
{
|
|
return kStatus_SDSPI_SetFrequencyFailed;
|
|
}
|
|
|
|
/* send 80 clock to active card */
|
|
(void)SDSPI_SendCardActive(card);
|
|
|
|
/* Reset the card by CMD0. */
|
|
if (kStatus_Success != SDSPI_GoIdle(card))
|
|
{
|
|
return kStatus_SDSPI_GoIdleFailed;
|
|
}
|
|
|
|
/* Check the card's supported interface condition. */
|
|
if (kStatus_Success != SDSPI_SendInterfaceCondition(card, &applicationCommand41Argument))
|
|
{
|
|
return kStatus_SDSPI_SendInterfaceConditionFailed;
|
|
}
|
|
|
|
#if SDSPI_CARD_CRC_PROTECTION_ENABLE
|
|
/* enable command crc protection. */
|
|
if (kStatus_Success != SDSPI_CommandCrc(card, true))
|
|
{
|
|
return kStatus_SDSPI_SwitchCmdFail;
|
|
}
|
|
#endif
|
|
|
|
/* Set card's interface condition according to host's capability and card's supported interface condition */
|
|
if (kStatus_Success != SDSPI_ApplicationSendOperationCondition(card, applicationCommand41Argument))
|
|
{
|
|
return kStatus_SDSPI_SendOperationConditionFailed;
|
|
}
|
|
|
|
if (kStatus_Success != SDSPI_ReadOcr(card))
|
|
{
|
|
return kStatus_SDSPI_ReadOcrFailed;
|
|
}
|
|
|
|
/* Force to use 512-byte length block, no matter which version. */
|
|
if (kStatus_Success != SDSPI_SetBlockSize(card, FSL_SDSPI_DEFAULT_BLOCK_SIZE))
|
|
{
|
|
return kStatus_SDSPI_SetBlockSizeFailed;
|
|
}
|
|
|
|
/* get csd */
|
|
if (kStatus_Success != SDSPI_SendCsd(card))
|
|
{
|
|
return kStatus_SDSPI_SendCsdFailed;
|
|
}
|
|
|
|
/* Set to max frequency according to the max frequency information in CSD register. */
|
|
if (kStatus_Success !=
|
|
card->host->setFrequency(SD_CLOCK_25MHZ > card->host->busBaudRate ? card->host->busBaudRate : SD_CLOCK_25MHZ))
|
|
{
|
|
return kStatus_SDSPI_SetFrequencyFailed;
|
|
}
|
|
|
|
if (kStatus_Success != SDSPI_SendScr(card))
|
|
{
|
|
return kStatus_SDSPI_SendCsdFailed;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
void SDSPI_Deinit(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
|
|
if (card->host->deinit != NULL)
|
|
{
|
|
card->host->deinit();
|
|
}
|
|
|
|
(void)memset(card, 0, sizeof(sdspi_card_t));
|
|
}
|
|
|
|
bool SDSPI_CheckReadOnly(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
|
|
if (((card->csd.flags & (uint16_t)kSD_CsdPermanentWriteProtectFlag) != 0U) ||
|
|
((card->csd.flags & (uint16_t)kSD_CsdTemporaryWriteProtectFlag) != 0U))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
status_t SDSPI_ReadBlocks(sdspi_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockCount)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
assert(buffer != NULL);
|
|
assert(blockCount != 0U);
|
|
|
|
uint32_t i;
|
|
uint8_t response = 0U;
|
|
|
|
/* send command */
|
|
if (kStatus_Success !=
|
|
SDSPI_SendCommand(
|
|
card->host, blockCount == 1U ? (uint32_t)kSDSPI_CmdReadSigleBlock : (uint32_t)kSDSPI_CmdReadMultiBlock,
|
|
((card->flags & (uint32_t)kSDSPI_SupportHighCapacityFlag) == 0U ? (startBlock * card->blockSize) :
|
|
startBlock),
|
|
&response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
/* read data */
|
|
for (i = 0U; i < blockCount; i++)
|
|
{
|
|
if (kStatus_Success != SDSPI_Read(card->host, buffer, card->blockSize))
|
|
{
|
|
return kStatus_SDSPI_ReadFailed;
|
|
}
|
|
buffer = (uint8_t *)((uintptr_t)buffer + card->blockSize);
|
|
}
|
|
|
|
/* Write stop transmission command after the last data block. */
|
|
if (blockCount > 1U)
|
|
{
|
|
if (kStatus_Success != SDSPI_StopTransmission(card))
|
|
{
|
|
return kStatus_SDSPI_StopTransmissionFailed;
|
|
}
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
status_t SDSPI_WriteBlocks(sdspi_card_t *card, uint8_t *buffer, uint32_t startBlock, uint32_t blockCount)
|
|
{
|
|
assert(card != NULL);
|
|
assert(card->host != NULL);
|
|
assert(buffer != NULL);
|
|
assert(blockCount != 0U);
|
|
|
|
uint32_t i;
|
|
uint8_t response = 0U;
|
|
|
|
if (SDSPI_CheckReadOnly(card))
|
|
{
|
|
return kStatus_SDSPI_WriteProtected;
|
|
}
|
|
|
|
/* send command */
|
|
if (kStatus_Success !=
|
|
SDSPI_SendCommand(
|
|
card->host, blockCount == 1U ? (uint32_t)kSDSPI_CmdWriteSigleBlock : (uint32_t)kSDSPI_CmdWriteMultiBlock,
|
|
((card->flags & (uint32_t)kSDSPI_SupportHighCapacityFlag) == 0U ? (startBlock * card->blockSize) :
|
|
startBlock),
|
|
&response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
/* check response */
|
|
if (response != 0U)
|
|
{
|
|
return kStatus_SDSPI_ResponseError;
|
|
}
|
|
/* write data */
|
|
for (i = 0U; i < blockCount; i++)
|
|
{
|
|
if (kStatus_Success != SDSPI_Write(card->host, buffer, card->blockSize,
|
|
blockCount == 1U ? (uint8_t)kSDSPI_DataTokenSingleBlockWrite :
|
|
(uint8_t)kSDSPI_DataTokenMultipleBlockWrite))
|
|
{
|
|
return kStatus_SDSPI_WriteFailed;
|
|
}
|
|
buffer = (uint8_t *)((uintptr_t)buffer + card->blockSize);
|
|
}
|
|
/* stop transfer */
|
|
if (blockCount > 1U)
|
|
{
|
|
if (kStatus_Success != SDSPI_Write(card->host, NULL, 0U, (uint8_t)kSDSPI_DataTokenStopTransfer))
|
|
{
|
|
return kStatus_SDSPI_WriteFailed;
|
|
}
|
|
|
|
/* Wait the card programming end. */
|
|
if (kStatus_Success != SDSPI_WaitReady(card->host))
|
|
{
|
|
return kStatus_SDSPI_WaitReadyFailed;
|
|
}
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
status_t SDSPI_SendPreErase(sdspi_card_t *card, uint32_t blockCount)
|
|
{
|
|
assert(blockCount > 1U);
|
|
|
|
uint8_t response = 0U;
|
|
|
|
/* Pre-erase before writing data */
|
|
if (kStatus_Success != SDSPI_SendApplicationCmd(card))
|
|
{
|
|
return kStatus_SDSPI_SendApplicationCommandFailed;
|
|
}
|
|
|
|
if (kStatus_Success != SDSPI_SendCommand(card->host, kSDSPI_CmdWrBlkEraseCount, blockCount, &response))
|
|
{
|
|
return kStatus_SDSPI_SendCommandFailed;
|
|
}
|
|
|
|
if (response != 0U)
|
|
{
|
|
return kStatus_SDSPI_ResponseError;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
status_t SDSPI_EraseBlocks(sdspi_card_t *card, uint32_t startBlock, uint32_t blockCount)
|
|
{
|
|
assert(card != NULL);
|
|
assert(blockCount != 0U);
|
|
|
|
uint32_t blockCountOneTime; /* The block count can be erased in one time sending ERASE_BLOCKS command. */
|
|
uint32_t blockDone = 0U; /* The block count has been erased. */
|
|
uint32_t blockLeft; /* Left block count to be erase. */
|
|
|
|
blockLeft = blockCount;
|
|
while (blockLeft != 0U)
|
|
{
|
|
if (blockLeft > (card->csd.eraseSectorSize + 1UL))
|
|
{
|
|
blockCountOneTime = card->csd.eraseSectorSize + 1UL;
|
|
blockLeft = blockLeft - blockCountOneTime;
|
|
}
|
|
else
|
|
{
|
|
blockCountOneTime = blockLeft;
|
|
blockLeft = 0U;
|
|
}
|
|
|
|
if (SDSPI_Erase(card, (startBlock + blockDone), blockCountOneTime) != kStatus_Success)
|
|
{
|
|
return kStatus_Fail;
|
|
}
|
|
|
|
blockDone += blockCountOneTime;
|
|
}
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
status_t SDSPI_SwitchToHighSpeed(sdspi_card_t *card)
|
|
{
|
|
assert(card != NULL);
|
|
|
|
if (SDSPI_SelectFunction(card, kSD_GroupTimingMode, kSD_FunctionSDR25HighSpeed) == kStatus_Success)
|
|
{
|
|
(void)card->host->setFrequency(SD_CLOCK_50MHZ > card->host->busBaudRate ? card->host->busBaudRate :
|
|
SD_CLOCK_50MHZ);
|
|
|
|
return kStatus_Success;
|
|
}
|
|
|
|
return kStatus_Fail;
|
|
}
|
|
|