kopia lustrzana https://github.com/micropython/micropython
2945 wiersze
91 KiB
C
2945 wiersze
91 KiB
C
/**
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******************************************************************************
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* @file stm324x7i_eval_sdio_sd.c
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* @author MCD Application Team
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* @version V1.0.0
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* @date 11-January-2013
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* @brief This file provides a set of functions needed to manage the SDIO SD
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* Card memory mounted on STM324x7I-EVAL evaluation board.
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*
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* @verbatim
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*
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* ===================================================================
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* How to use this driver
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* ===================================================================
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* It implements a high level communication layer for read and write
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* from/to this memory. The needed STM32 hardware resources (SDIO and
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* GPIO) are defined in stm324x7i_eval.h file, and the initialization is
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* performed in SD_LowLevel_Init() function declared in stm324x7i_eval.c
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* file.
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* You can easily tailor this driver to any other development board,
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* by just adapting the defines for hardware resources and
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* SD_LowLevel_Init() function.
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*
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* A - SD Card Initialization and configuration
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* ============================================
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* - To initialize the SD Card, use the SD_Init() function. It
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* Initializes the SD Card and put it into StandBy State (Ready
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* for data transfer). This function provide the following operations:
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*
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* 1 - Apply the SD Card initialization process at 400KHz and check
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* the SD Card type (Standard Capacity or High Capacity). You
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* can change or adapt this frequency by adjusting the
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* "SDIO_INIT_CLK_DIV" define inside the stm324x7i_eval.h file.
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* The SD Card frequency (SDIO_CK) is computed as follows:
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*
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* +---------------------------------------------+
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* | SDIO_CK = SDIOCLK / (SDIO_INIT_CLK_DIV + 2) |
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* +---------------------------------------------+
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*
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* In initialization mode and according to the SD Card standard,
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* make sure that the SDIO_CK frequency don't exceed 400KHz.
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*
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* 2 - Get the SD CID and CSD data. All these information are
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* managed by the SDCardInfo structure. This structure provide
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* also ready computed SD Card capacity and Block size.
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*
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* 3 - Configure the SD Card Data transfer frequency. By Default,
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* the card transfer frequency is set to 24MHz. You can change
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* or adapt this frequency by adjusting the "SDIO_TRANSFER_CLK_DIV"
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* define inside the stm324x7i_eval.h file.
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* The SD Card frequency (SDIO_CK) is computed as follows:
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*
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* +---------------------------------------------+
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* | SDIO_CK = SDIOCLK / (SDIO_INIT_CLK_DIV + 2) |
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* +---------------------------------------------+
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*
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* In transfer mode and according to the SD Card standard,
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* make sure that the SDIO_CK frequency don't exceed 25MHz
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* and 50MHz in High-speed mode switch.
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* To be able to use a frequency higher than 24MHz, you should
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* use the SDIO peripheral in bypass mode. Refer to the
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* corresponding reference manual for more details.
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*
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* 4 - Select the corresponding SD Card according to the address
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* read with the step 2.
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*
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* 5 - Configure the SD Card in wide bus mode: 4-bits data.
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*
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* B - SD Card Read operation
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* ==========================
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* - You can read SD card by using two function: SD_ReadBlock() and
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* SD_ReadMultiBlocks() functions. These functions support only
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* 512-byte block length.
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* - The SD_ReadBlock() function read only one block (512-byte). This
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* function can transfer the data using DMA controller or using
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* polling mode. To select between DMA or polling mode refer to
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* "SD_DMA_MODE" or "SD_POLLING_MODE" inside the stm324x7i_eval_sdio_sd.h
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* file and uncomment the corresponding line. By default the SD DMA
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* mode is selected
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* - The SD_ReadMultiBlocks() function read only mutli blocks (multiple
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* of 512-byte).
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* - Any read operation should be followed by two functions to check
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* if the DMA Controller and SD Card status.
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* - SD_ReadWaitOperation(): this function insure that the DMA
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* controller has finished all data transfer.
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* - SD_GetStatus(): to check that the SD Card has finished the
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* data transfer and it is ready for data.
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*
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* - The DMA transfer is finished by the SDIO Data End interrupt.
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* User has to call the SD_ProcessIRQ() function inside the SDIO_IRQHandler()
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* and SD_ProcessDMAIRQ() function inside the DMA2_Streamx_IRQHandler().
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* Don't forget to enable the SDIO_IRQn and DMA2_Stream3_IRQn or
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* DMA2_Stream6_IRQn interrupts using the NVIC controller.
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*
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* C - SD Card Write operation
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* ===========================
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* - You can write SD card by using two function: SD_WriteBlock() and
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* SD_WriteMultiBlocks() functions. These functions support only
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* 512-byte block length.
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* - The SD_WriteBlock() function write only one block (512-byte). This
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* function can transfer the data using DMA controller or using
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* polling mode. To select between DMA or polling mode refer to
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* "SD_DMA_MODE" or "SD_POLLING_MODE" inside the stm324x7i_eval_sdio_sd.h
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* file and uncomment the corresponding line. By default the SD DMA
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* mode is selected
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* - The SD_WriteMultiBlocks() function write only mutli blocks (multiple
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* of 512-byte).
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* - Any write operation should be followed by two functions to check
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* if the DMA Controller and SD Card status.
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* - SD_ReadWaitOperation(): this function insure that the DMA
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* controller has finished all data transfer.
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* - SD_GetStatus(): to check that the SD Card has finished the
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* data transfer and it is ready for data.
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*
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* - The DMA transfer is finished by the SDIO Data End interrupt.
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* User has to call the SD_ProcessIRQ() function inside the SDIO_IRQHandler()
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* and SD_ProcessDMAIRQ() function inside the DMA2_Streamx_IRQHandler().
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* Don't forget to enable the SDIO_IRQn and DMA2_Stream3_IRQn or
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* DMA2_Stream6_IRQn interrupts using the NVIC controller.
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*
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*
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* D - SD card status
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* ==================
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* - At any time, you can check the SD Card status and get the SD card
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* state by using the SD_GetStatus() function. This function checks
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* first if the SD card is still connected and then get the internal
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* SD Card transfer state.
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* - You can also get the SD card SD Status register by using the
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* SD_SendSDStatus() function.
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*
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* E - Programming Model (Selecting DMA for SDIO data Transfer)
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* ============================================================
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* Status = SD_Init(); // Initialization Step as described in section A
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*
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* // SDIO Interrupt ENABLE
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* NVIC_InitStructure.NVIC_IRQChannel = SDIO_IRQn;
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* NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
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* NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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* NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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* NVIC_Init(&NVIC_InitStructure);
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* // DMA2 STREAMx Interrupt ENABLE
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* NVIC_InitStructure.NVIC_IRQChannel = SD_SDIO_DMA_IRQn;
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* NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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* NVIC_Init(&NVIC_InitStructure);
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*
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* // Write operation as described in Section C
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* Status = SD_WriteBlock(buffer, address, 512);
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* Status = SD_WaitWriteOperation();
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* while(SD_GetStatus() != SD_TRANSFER_OK);
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*
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* Status = SD_WriteMultiBlocks(buffer, address, 512, NUMBEROFBLOCKS);
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* Status = SD_WaitWriteOperation();
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* while(SD_GetStatus() != SD_TRANSFER_OK);
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*
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* // Read operation as described in Section B
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* Status = SD_ReadBlock(buffer, address, 512);
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* Status = SD_WaitReadOperation();
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* while(SD_GetStatus() != SD_TRANSFER_OK);
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*
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* Status = SD_ReadMultiBlocks(buffer, address, 512, NUMBEROFBLOCKS);
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* Status = SD_WaitReadOperation();
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* while(SD_GetStatus() != SD_TRANSFER_OK);
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*
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* - Add the SDIO and DMA2 StreamX (3 or 6) IRQ Handlers:
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* void SDIO_IRQHandler(void)
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* {
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* SD_ProcessIRQ();
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* }
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* void SD_SDIO_DMA_IRQHANDLER(void)
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* {
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* SD_ProcessDMAIRQ();
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* }
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*
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* F - Programming Model (Selecting Polling for SDIO data Transfer)
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* ================================================================
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* //Only SD Card Single Block operation are managed.
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* Status = SD_Init(); // Initialization Step as described in section
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*
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* // Write operation as described in Section C
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* Status = SD_WriteBlock(buffer, address, 512);
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*
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* // Read operation as described in Section B
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* Status = SD_ReadBlock(buffer, address, 512);
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*
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* STM32 SDIO Pin assignment
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* =========================
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* +-----------------------------------------------------------+
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* | Pin assignment |
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* +-----------------------------+---------------+-------------+
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* | STM32 SDIO Pins | SD | Pin |
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* +-----------------------------+---------------+-------------+
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* | SDIO D2 | D2 | 1 |
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* | SDIO D3 | D3 | 2 |
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* | SDIO CMD | CMD | 3 |
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* | | VCC | 4 (3.3 V)|
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* | SDIO CLK | CLK | 5 |
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* | | GND | 6 (0 V) |
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* | SDIO D0 | D0 | 7 |
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* | SDIO D1 | D1 | 8 |
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* +-----------------------------+---------------+-------------+
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*
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* @endverbatim
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*
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2013 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx_dma.h"
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#include "stm32f4xx_gpio.h"
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#include "stm32f4xx_sdio.h"
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#include "stm324x7i_eval_sdio_sd.h"
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//#include "std.h"
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/** @addtogroup Utilities
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* @{
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*/
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/** @addtogroup STM32_EVAL
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* @{
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*/
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/** @addtogroup STM324x7I_EVAL
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* @{
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*/
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/** @addtogroup STM324x7I_EVAL_SDIO_SD
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* @brief This file provides all the SD Card driver firmware functions.
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* @{
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*/
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/** @defgroup STM324x7I_EVAL_SDIO_SD_Private_Types
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup stm324x7i_EVAL_SDIO_SD_Private_Defines
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* @{
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*/
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/**
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* @brief SDIO Static flags, TimeOut, FIFO Address
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*/
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#define NULL 0
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#define SDIO_STATIC_FLAGS ((uint32_t)0x000005FF)
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#define SDIO_CMD0TIMEOUT ((uint32_t)0x00080000) // dpgeorge: was 0x10000
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/**
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* @brief Mask for errors Card Status R1 (OCR Register)
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*/
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#define SD_OCR_ADDR_OUT_OF_RANGE ((uint32_t)0x80000000)
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#define SD_OCR_ADDR_MISALIGNED ((uint32_t)0x40000000)
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#define SD_OCR_BLOCK_LEN_ERR ((uint32_t)0x20000000)
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#define SD_OCR_ERASE_SEQ_ERR ((uint32_t)0x10000000)
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#define SD_OCR_BAD_ERASE_PARAM ((uint32_t)0x08000000)
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#define SD_OCR_WRITE_PROT_VIOLATION ((uint32_t)0x04000000)
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#define SD_OCR_LOCK_UNLOCK_FAILED ((uint32_t)0x01000000)
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#define SD_OCR_COM_CRC_FAILED ((uint32_t)0x00800000)
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#define SD_OCR_ILLEGAL_CMD ((uint32_t)0x00400000)
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#define SD_OCR_CARD_ECC_FAILED ((uint32_t)0x00200000)
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#define SD_OCR_CC_ERROR ((uint32_t)0x00100000)
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#define SD_OCR_GENERAL_UNKNOWN_ERROR ((uint32_t)0x00080000)
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#define SD_OCR_STREAM_READ_UNDERRUN ((uint32_t)0x00040000)
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#define SD_OCR_STREAM_WRITE_OVERRUN ((uint32_t)0x00020000)
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#define SD_OCR_CID_CSD_OVERWRIETE ((uint32_t)0x00010000)
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#define SD_OCR_WP_ERASE_SKIP ((uint32_t)0x00008000)
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#define SD_OCR_CARD_ECC_DISABLED ((uint32_t)0x00004000)
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#define SD_OCR_ERASE_RESET ((uint32_t)0x00002000)
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#define SD_OCR_AKE_SEQ_ERROR ((uint32_t)0x00000008)
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#define SD_OCR_ERRORBITS ((uint32_t)0xFDFFE008)
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/**
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* @brief Masks for R6 Response
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*/
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#define SD_R6_GENERAL_UNKNOWN_ERROR ((uint32_t)0x00002000)
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#define SD_R6_ILLEGAL_CMD ((uint32_t)0x00004000)
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#define SD_R6_COM_CRC_FAILED ((uint32_t)0x00008000)
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#define SD_VOLTAGE_WINDOW_SD ((uint32_t)0x80100000)
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#define SD_HIGH_CAPACITY ((uint32_t)0x40000000)
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#define SD_STD_CAPACITY ((uint32_t)0x00000000)
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#define SD_CHECK_PATTERN ((uint32_t)0x000001AA)
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#define SD_MAX_VOLT_TRIAL ((uint32_t)0x0000FFFF)
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#define SD_ALLZERO ((uint32_t)0x00000000)
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#define SD_WIDE_BUS_SUPPORT ((uint32_t)0x00040000)
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#define SD_SINGLE_BUS_SUPPORT ((uint32_t)0x00010000)
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#define SD_CARD_LOCKED ((uint32_t)0x02000000)
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#define SD_DATATIMEOUT ((uint32_t)0xFFFFFFFF)
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#define SD_0TO7BITS ((uint32_t)0x000000FF)
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#define SD_8TO15BITS ((uint32_t)0x0000FF00)
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#define SD_16TO23BITS ((uint32_t)0x00FF0000)
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#define SD_24TO31BITS ((uint32_t)0xFF000000)
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#define SD_MAX_DATA_LENGTH ((uint32_t)0x01FFFFFF)
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#define SD_HALFFIFO ((uint32_t)0x00000008)
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#define SD_HALFFIFOBYTES ((uint32_t)0x00000020)
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/**
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* @brief Command Class Supported
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*/
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#define SD_CCCC_LOCK_UNLOCK ((uint32_t)0x00000080)
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#define SD_CCCC_WRITE_PROT ((uint32_t)0x00000040)
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#define SD_CCCC_ERASE ((uint32_t)0x00000020)
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/**
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* @brief Following commands are SD Card Specific commands.
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* SDIO_APP_CMD should be sent before sending these commands.
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*/
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#define SDIO_SEND_IF_COND ((uint32_t)0x00000008)
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/**
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* @}
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*/
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/** @defgroup STM324x7I_EVAL_SDIO_SD_Private_Macros
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* @{
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*/
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/**
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* @}
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*/
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/** @defgroup STM324x7I_EVAL_SDIO_SD_Private_Variables
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* @{
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*/
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static uint32_t CardType = SDIO_STD_CAPACITY_SD_CARD_V1_1;
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static uint32_t CSD_Tab[4], CID_Tab[4], RCA = 0;
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static uint8_t SDSTATUS_Tab[16];
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__IO uint32_t StopCondition = 0;
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__IO SD_Error TransferError = SD_OK;
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__IO uint32_t TransferEnd = 0, DMAEndOfTransfer = 0;
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SD_CardInfo SDCardInfo;
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SDIO_InitTypeDef SDIO_InitStructure;
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SDIO_CmdInitTypeDef SDIO_CmdInitStructure;
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SDIO_DataInitTypeDef SDIO_DataInitStructure;
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/**
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* @}
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*/
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/** @defgroup STM324x7I_EVAL_SDIO_SD_Private_Function_Prototypes
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* @{
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*/
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static SD_Error CmdError(void);
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static SD_Error CmdResp1Error(uint8_t cmd);
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static SD_Error CmdResp7Error(void);
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static SD_Error CmdResp3Error(void);
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static SD_Error CmdResp2Error(void);
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static SD_Error CmdResp6Error(uint8_t cmd, uint16_t *prca);
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static SD_Error SDEnWideBus(FunctionalState NewState);
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static SD_Error IsCardProgramming(uint8_t *pstatus);
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static SD_Error FindSCR(uint16_t rca, uint32_t *pscr);
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uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes);
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/**
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* @}
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*/
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/** @defgroup STM324x7I_EVAL_SDIO_SD_Private_Functions
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* @{
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*/
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/**
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* @brief DeInitializes the SDIO interface.
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* @param None
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* @retval None
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*/
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void SD_DeInit(void)
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{
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SD_LowLevel_DeInit();
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}
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/**
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* @brief Initializes the SD Card and put it into StandBy State (Ready for data
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* transfer).
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* @param None
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* @retval SD_Error: SD Card Error code.
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*/
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SD_Error SD_Init(void)
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{
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__IO SD_Error errorstatus = SD_OK;
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/* SDIO Peripheral Low Level Init */
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SD_LowLevel_Init();
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SDIO_DeInit();
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errorstatus = SD_PowerON();
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if (errorstatus != SD_OK)
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{
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/*!< CMD Response TimeOut (wait for CMDSENT flag) */
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return(errorstatus);
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}
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errorstatus = SD_InitializeCards();
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if (errorstatus != SD_OK)
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{
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/*!< CMD Response TimeOut (wait for CMDSENT flag) */
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return(errorstatus);
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}
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/*!< Configure the SDIO peripheral */
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/*!< SDIO_CK = SDIOCLK / (SDIO_TRANSFER_CLK_DIV + 2) */
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/*!< on STM32F4xx devices, SDIOCLK is fixed to 48MHz */
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SDIO_InitStructure.SDIO_ClockDiv = SDIO_TRANSFER_CLK_DIV;
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SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising;
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SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable;
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SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
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SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b;
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SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
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SDIO_Init(&SDIO_InitStructure);
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/*----------------- Read CSD/CID MSD registers ------------------*/
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errorstatus = SD_GetCardInfo(&SDCardInfo);
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if (errorstatus == SD_OK)
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{
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/*----------------- Select Card --------------------------------*/
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errorstatus = SD_SelectDeselect((uint32_t) (SDCardInfo.RCA << 16));
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}
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if (errorstatus == SD_OK)
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{
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errorstatus = SD_EnableWideBusOperation(SDIO_BusWide_4b);
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}
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return(errorstatus);
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}
|
|
|
|
/**
|
|
* @brief Gets the cuurent sd card data transfer status.
|
|
* @param None
|
|
* @retval SDTransferState: Data Transfer state.
|
|
* This value can be:
|
|
* - SD_TRANSFER_OK: No data transfer is acting
|
|
* - SD_TRANSFER_BUSY: Data transfer is acting
|
|
*/
|
|
SDTransferState SD_GetStatus(void)
|
|
{
|
|
SDCardState cardstate = SD_CARD_TRANSFER;
|
|
|
|
cardstate = SD_GetState();
|
|
|
|
if (cardstate == SD_CARD_TRANSFER)
|
|
{
|
|
return(SD_TRANSFER_OK);
|
|
}
|
|
else if(cardstate == SD_CARD_ERROR)
|
|
{
|
|
return (SD_TRANSFER_ERROR);
|
|
}
|
|
else
|
|
{
|
|
return(SD_TRANSFER_BUSY);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Returns the current card's state.
|
|
* @param None
|
|
* @retval SDCardState: SD Card Error or SD Card Current State.
|
|
*/
|
|
SDCardState SD_GetState(void)
|
|
{
|
|
uint32_t resp1 = 0;
|
|
|
|
if(SD_Detect()== SD_PRESENT)
|
|
{
|
|
if (SD_SendStatus(&resp1) != SD_OK)
|
|
{
|
|
return SD_CARD_ERROR;
|
|
}
|
|
else
|
|
{
|
|
return (SDCardState)((resp1 >> 9) & 0x0F);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return SD_CARD_ERROR;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Detect if SD card is correctly plugged in the memory slot.
|
|
* @param None
|
|
* @retval Return if SD is detected or not
|
|
*/
|
|
uint8_t SD_Detect(void)
|
|
{
|
|
__IO uint8_t status = SD_PRESENT;
|
|
|
|
/*!< Check GPIO to detect SD */
|
|
if (GPIO_ReadInputDataBit(SD_DETECT_GPIO_PORT, SD_DETECT_PIN) != Bit_SET)
|
|
{
|
|
status = SD_NOT_PRESENT;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Enquires cards about their operating voltage and configures
|
|
* clock controls.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_PowerON(void)
|
|
{
|
|
__IO SD_Error errorstatus = SD_OK;
|
|
uint32_t response = 0, count = 0, validvoltage = 0;
|
|
uint32_t SDType = SD_STD_CAPACITY;
|
|
|
|
/*!< Power ON Sequence -----------------------------------------------------*/
|
|
/*!< Configure the SDIO peripheral */
|
|
/*!< SDIO_CK = SDIOCLK / (SDIO_INIT_CLK_DIV + 2) */
|
|
/*!< on STM32F4xx devices, SDIOCLK is fixed to 48MHz */
|
|
/*!< SDIO_CK for initialization should not exceed 400 KHz */
|
|
SDIO_InitStructure.SDIO_ClockDiv = SDIO_INIT_CLK_DIV;
|
|
SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising;
|
|
SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable;
|
|
SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
|
|
SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b;
|
|
SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
|
|
SDIO_Init(&SDIO_InitStructure);
|
|
|
|
/*!< Set Power State to ON */
|
|
SDIO_SetPowerState(SDIO_PowerState_ON);
|
|
|
|
/*!< Enable SDIO Clock */
|
|
SDIO_ClockCmd(ENABLE);
|
|
|
|
/*!< CMD0: GO_IDLE_STATE ---------------------------------------------------*/
|
|
/*!< No CMD response required */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_GO_IDLE_STATE;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_No;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdError();
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
/*!< CMD Response TimeOut (wait for CMDSENT flag) */
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< CMD8: SEND_IF_COND ----------------------------------------------------*/
|
|
/*!< Send CMD8 to verify SD card interface operating condition */
|
|
/*!< Argument: - [31:12]: Reserved (shall be set to '0')
|
|
- [11:8]: Supply Voltage (VHS) 0x1 (Range: 2.7-3.6 V)
|
|
- [7:0]: Check Pattern (recommended 0xAA) */
|
|
/*!< CMD Response: R7 */
|
|
SDIO_CmdInitStructure.SDIO_Argument = SD_CHECK_PATTERN;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SDIO_SEND_IF_COND;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp7Error();
|
|
|
|
if (errorstatus == SD_OK)
|
|
{
|
|
CardType = SDIO_STD_CAPACITY_SD_CARD_V2_0; /*!< SD Card 2.0 */
|
|
SDType = SD_HIGH_CAPACITY;
|
|
}
|
|
else
|
|
{
|
|
/*!< CMD55 */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
|
|
}
|
|
/*!< CMD55 */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
|
|
|
|
/*!< If errorstatus is Command TimeOut, it is a MMC card */
|
|
/*!< If errorstatus is SD_OK it is a SD card: SD card 2.0 (voltage range mismatch)
|
|
or SD card 1.x */
|
|
if (errorstatus == SD_OK)
|
|
{
|
|
/*!< SD CARD */
|
|
/*!< Send ACMD41 SD_APP_OP_COND with Argument 0x80100000 */
|
|
while ((!validvoltage) && (count < SD_MAX_VOLT_TRIAL))
|
|
{
|
|
|
|
/*!< SEND CMD55 APP_CMD with RCA as 0 */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
SDIO_CmdInitStructure.SDIO_Argument = SD_VOLTAGE_WINDOW_SD | SDType;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_APP_OP_COND;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp3Error();
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
response = SDIO_GetResponse(SDIO_RESP1);
|
|
validvoltage = (((response >> 31) == 1) ? 1 : 0);
|
|
count++;
|
|
}
|
|
if (count >= SD_MAX_VOLT_TRIAL)
|
|
{
|
|
errorstatus = SD_INVALID_VOLTRANGE;
|
|
return(errorstatus);
|
|
}
|
|
|
|
if (response &= SD_HIGH_CAPACITY)
|
|
{
|
|
CardType = SDIO_HIGH_CAPACITY_SD_CARD;
|
|
}
|
|
|
|
}/*!< else MMC Card */
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Turns the SDIO output signals off.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_PowerOFF(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
|
|
/*!< Set Power State to OFF */
|
|
SDIO_SetPowerState(SDIO_PowerState_OFF);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Intialises all cards or single card as the case may be Card(s) come
|
|
* into standby state.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_InitializeCards(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint16_t rca = 0x01;
|
|
|
|
if (SDIO_GetPowerState() == SDIO_PowerState_OFF)
|
|
{
|
|
errorstatus = SD_REQUEST_NOT_APPLICABLE;
|
|
return(errorstatus);
|
|
}
|
|
|
|
if (SDIO_SECURE_DIGITAL_IO_CARD != CardType)
|
|
{
|
|
/*!< Send CMD2 ALL_SEND_CID */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_ALL_SEND_CID;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp2Error();
|
|
|
|
if (SD_OK != errorstatus)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
CID_Tab[0] = SDIO_GetResponse(SDIO_RESP1);
|
|
CID_Tab[1] = SDIO_GetResponse(SDIO_RESP2);
|
|
CID_Tab[2] = SDIO_GetResponse(SDIO_RESP3);
|
|
CID_Tab[3] = SDIO_GetResponse(SDIO_RESP4);
|
|
}
|
|
if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_SECURE_DIGITAL_IO_COMBO_CARD == CardType)
|
|
|| (SDIO_HIGH_CAPACITY_SD_CARD == CardType))
|
|
{
|
|
/*!< Send CMD3 SET_REL_ADDR with argument 0 */
|
|
/*!< SD Card publishes its RCA. */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_REL_ADDR;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp6Error(SD_CMD_SET_REL_ADDR, &rca);
|
|
|
|
if (SD_OK != errorstatus)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
}
|
|
|
|
if (SDIO_SECURE_DIGITAL_IO_CARD != CardType)
|
|
{
|
|
RCA = rca;
|
|
|
|
/*!< Send CMD9 SEND_CSD with argument as card's RCA */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)(rca << 16);
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_CSD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Long;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp2Error();
|
|
|
|
if (SD_OK != errorstatus)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
CSD_Tab[0] = SDIO_GetResponse(SDIO_RESP1);
|
|
CSD_Tab[1] = SDIO_GetResponse(SDIO_RESP2);
|
|
CSD_Tab[2] = SDIO_GetResponse(SDIO_RESP3);
|
|
CSD_Tab[3] = SDIO_GetResponse(SDIO_RESP4);
|
|
}
|
|
|
|
errorstatus = SD_OK; /*!< All cards get intialized */
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Returns information about specific card.
|
|
* @param cardinfo: pointer to a SD_CardInfo structure that contains all SD card
|
|
* information.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_GetCardInfo(SD_CardInfo *cardinfo)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint8_t tmp = 0;
|
|
|
|
cardinfo->CardType = (uint8_t)CardType;
|
|
cardinfo->RCA = (uint16_t)RCA;
|
|
|
|
/*!< Byte 0 */
|
|
tmp = (uint8_t)((CSD_Tab[0] & 0xFF000000) >> 24);
|
|
cardinfo->SD_csd.CSDStruct = (tmp & 0xC0) >> 6;
|
|
cardinfo->SD_csd.SysSpecVersion = (tmp & 0x3C) >> 2;
|
|
cardinfo->SD_csd.Reserved1 = tmp & 0x03;
|
|
|
|
/*!< Byte 1 */
|
|
tmp = (uint8_t)((CSD_Tab[0] & 0x00FF0000) >> 16);
|
|
cardinfo->SD_csd.TAAC = tmp;
|
|
|
|
/*!< Byte 2 */
|
|
tmp = (uint8_t)((CSD_Tab[0] & 0x0000FF00) >> 8);
|
|
cardinfo->SD_csd.NSAC = tmp;
|
|
|
|
/*!< Byte 3 */
|
|
tmp = (uint8_t)(CSD_Tab[0] & 0x000000FF);
|
|
cardinfo->SD_csd.MaxBusClkFrec = tmp;
|
|
|
|
/*!< Byte 4 */
|
|
tmp = (uint8_t)((CSD_Tab[1] & 0xFF000000) >> 24);
|
|
cardinfo->SD_csd.CardComdClasses = tmp << 4;
|
|
|
|
/*!< Byte 5 */
|
|
tmp = (uint8_t)((CSD_Tab[1] & 0x00FF0000) >> 16);
|
|
cardinfo->SD_csd.CardComdClasses |= (tmp & 0xF0) >> 4;
|
|
cardinfo->SD_csd.RdBlockLen = tmp & 0x0F;
|
|
|
|
/*!< Byte 6 */
|
|
tmp = (uint8_t)((CSD_Tab[1] & 0x0000FF00) >> 8);
|
|
cardinfo->SD_csd.PartBlockRead = (tmp & 0x80) >> 7;
|
|
cardinfo->SD_csd.WrBlockMisalign = (tmp & 0x40) >> 6;
|
|
cardinfo->SD_csd.RdBlockMisalign = (tmp & 0x20) >> 5;
|
|
cardinfo->SD_csd.DSRImpl = (tmp & 0x10) >> 4;
|
|
cardinfo->SD_csd.Reserved2 = 0; /*!< Reserved */
|
|
|
|
if ((CardType == SDIO_STD_CAPACITY_SD_CARD_V1_1) || (CardType == SDIO_STD_CAPACITY_SD_CARD_V2_0))
|
|
{
|
|
cardinfo->SD_csd.DeviceSize = (tmp & 0x03) << 10;
|
|
|
|
/*!< Byte 7 */
|
|
tmp = (uint8_t)(CSD_Tab[1] & 0x000000FF);
|
|
cardinfo->SD_csd.DeviceSize |= (tmp) << 2;
|
|
|
|
/*!< Byte 8 */
|
|
tmp = (uint8_t)((CSD_Tab[2] & 0xFF000000) >> 24);
|
|
cardinfo->SD_csd.DeviceSize |= (tmp & 0xC0) >> 6;
|
|
|
|
cardinfo->SD_csd.MaxRdCurrentVDDMin = (tmp & 0x38) >> 3;
|
|
cardinfo->SD_csd.MaxRdCurrentVDDMax = (tmp & 0x07);
|
|
|
|
/*!< Byte 9 */
|
|
tmp = (uint8_t)((CSD_Tab[2] & 0x00FF0000) >> 16);
|
|
cardinfo->SD_csd.MaxWrCurrentVDDMin = (tmp & 0xE0) >> 5;
|
|
cardinfo->SD_csd.MaxWrCurrentVDDMax = (tmp & 0x1C) >> 2;
|
|
cardinfo->SD_csd.DeviceSizeMul = (tmp & 0x03) << 1;
|
|
/*!< Byte 10 */
|
|
tmp = (uint8_t)((CSD_Tab[2] & 0x0000FF00) >> 8);
|
|
cardinfo->SD_csd.DeviceSizeMul |= (tmp & 0x80) >> 7;
|
|
|
|
cardinfo->CardCapacity = (cardinfo->SD_csd.DeviceSize + 1) ;
|
|
cardinfo->CardCapacity *= (1 << (cardinfo->SD_csd.DeviceSizeMul + 2));
|
|
cardinfo->CardBlockSize = 1 << (cardinfo->SD_csd.RdBlockLen);
|
|
cardinfo->CardCapacity *= cardinfo->CardBlockSize;
|
|
}
|
|
else if (CardType == SDIO_HIGH_CAPACITY_SD_CARD)
|
|
{
|
|
/*!< Byte 7 */
|
|
tmp = (uint8_t)(CSD_Tab[1] & 0x000000FF);
|
|
cardinfo->SD_csd.DeviceSize = (tmp & 0x3F) << 16;
|
|
|
|
/*!< Byte 8 */
|
|
tmp = (uint8_t)((CSD_Tab[2] & 0xFF000000) >> 24);
|
|
|
|
cardinfo->SD_csd.DeviceSize |= (tmp << 8);
|
|
|
|
/*!< Byte 9 */
|
|
tmp = (uint8_t)((CSD_Tab[2] & 0x00FF0000) >> 16);
|
|
|
|
cardinfo->SD_csd.DeviceSize |= (tmp);
|
|
|
|
/*!< Byte 10 */
|
|
tmp = (uint8_t)((CSD_Tab[2] & 0x0000FF00) >> 8);
|
|
|
|
cardinfo->CardCapacity = ((uint64_t)cardinfo->SD_csd.DeviceSize + 1) * 512 * 1024;
|
|
cardinfo->CardBlockSize = 512;
|
|
}
|
|
|
|
|
|
cardinfo->SD_csd.EraseGrSize = (tmp & 0x40) >> 6;
|
|
cardinfo->SD_csd.EraseGrMul = (tmp & 0x3F) << 1;
|
|
|
|
/*!< Byte 11 */
|
|
tmp = (uint8_t)(CSD_Tab[2] & 0x000000FF);
|
|
cardinfo->SD_csd.EraseGrMul |= (tmp & 0x80) >> 7;
|
|
cardinfo->SD_csd.WrProtectGrSize = (tmp & 0x7F);
|
|
|
|
/*!< Byte 12 */
|
|
tmp = (uint8_t)((CSD_Tab[3] & 0xFF000000) >> 24);
|
|
cardinfo->SD_csd.WrProtectGrEnable = (tmp & 0x80) >> 7;
|
|
cardinfo->SD_csd.ManDeflECC = (tmp & 0x60) >> 5;
|
|
cardinfo->SD_csd.WrSpeedFact = (tmp & 0x1C) >> 2;
|
|
cardinfo->SD_csd.MaxWrBlockLen = (tmp & 0x03) << 2;
|
|
|
|
/*!< Byte 13 */
|
|
tmp = (uint8_t)((CSD_Tab[3] & 0x00FF0000) >> 16);
|
|
cardinfo->SD_csd.MaxWrBlockLen |= (tmp & 0xC0) >> 6;
|
|
cardinfo->SD_csd.WriteBlockPaPartial = (tmp & 0x20) >> 5;
|
|
cardinfo->SD_csd.Reserved3 = 0;
|
|
cardinfo->SD_csd.ContentProtectAppli = (tmp & 0x01);
|
|
|
|
/*!< Byte 14 */
|
|
tmp = (uint8_t)((CSD_Tab[3] & 0x0000FF00) >> 8);
|
|
cardinfo->SD_csd.FileFormatGrouop = (tmp & 0x80) >> 7;
|
|
cardinfo->SD_csd.CopyFlag = (tmp & 0x40) >> 6;
|
|
cardinfo->SD_csd.PermWrProtect = (tmp & 0x20) >> 5;
|
|
cardinfo->SD_csd.TempWrProtect = (tmp & 0x10) >> 4;
|
|
cardinfo->SD_csd.FileFormat = (tmp & 0x0C) >> 2;
|
|
cardinfo->SD_csd.ECC = (tmp & 0x03);
|
|
|
|
/*!< Byte 15 */
|
|
tmp = (uint8_t)(CSD_Tab[3] & 0x000000FF);
|
|
cardinfo->SD_csd.CSD_CRC = (tmp & 0xFE) >> 1;
|
|
cardinfo->SD_csd.Reserved4 = 1;
|
|
|
|
|
|
/*!< Byte 0 */
|
|
tmp = (uint8_t)((CID_Tab[0] & 0xFF000000) >> 24);
|
|
cardinfo->SD_cid.ManufacturerID = tmp;
|
|
|
|
/*!< Byte 1 */
|
|
tmp = (uint8_t)((CID_Tab[0] & 0x00FF0000) >> 16);
|
|
cardinfo->SD_cid.OEM_AppliID = tmp << 8;
|
|
|
|
/*!< Byte 2 */
|
|
tmp = (uint8_t)((CID_Tab[0] & 0x000000FF00) >> 8);
|
|
cardinfo->SD_cid.OEM_AppliID |= tmp;
|
|
|
|
/*!< Byte 3 */
|
|
tmp = (uint8_t)(CID_Tab[0] & 0x000000FF);
|
|
cardinfo->SD_cid.ProdName1 = tmp << 24;
|
|
|
|
/*!< Byte 4 */
|
|
tmp = (uint8_t)((CID_Tab[1] & 0xFF000000) >> 24);
|
|
cardinfo->SD_cid.ProdName1 |= tmp << 16;
|
|
|
|
/*!< Byte 5 */
|
|
tmp = (uint8_t)((CID_Tab[1] & 0x00FF0000) >> 16);
|
|
cardinfo->SD_cid.ProdName1 |= tmp << 8;
|
|
|
|
/*!< Byte 6 */
|
|
tmp = (uint8_t)((CID_Tab[1] & 0x0000FF00) >> 8);
|
|
cardinfo->SD_cid.ProdName1 |= tmp;
|
|
|
|
/*!< Byte 7 */
|
|
tmp = (uint8_t)(CID_Tab[1] & 0x000000FF);
|
|
cardinfo->SD_cid.ProdName2 = tmp;
|
|
|
|
/*!< Byte 8 */
|
|
tmp = (uint8_t)((CID_Tab[2] & 0xFF000000) >> 24);
|
|
cardinfo->SD_cid.ProdRev = tmp;
|
|
|
|
/*!< Byte 9 */
|
|
tmp = (uint8_t)((CID_Tab[2] & 0x00FF0000) >> 16);
|
|
cardinfo->SD_cid.ProdSN = tmp << 24;
|
|
|
|
/*!< Byte 10 */
|
|
tmp = (uint8_t)((CID_Tab[2] & 0x0000FF00) >> 8);
|
|
cardinfo->SD_cid.ProdSN |= tmp << 16;
|
|
|
|
/*!< Byte 11 */
|
|
tmp = (uint8_t)(CID_Tab[2] & 0x000000FF);
|
|
cardinfo->SD_cid.ProdSN |= tmp << 8;
|
|
|
|
/*!< Byte 12 */
|
|
tmp = (uint8_t)((CID_Tab[3] & 0xFF000000) >> 24);
|
|
cardinfo->SD_cid.ProdSN |= tmp;
|
|
|
|
/*!< Byte 13 */
|
|
tmp = (uint8_t)((CID_Tab[3] & 0x00FF0000) >> 16);
|
|
cardinfo->SD_cid.Reserved1 |= (tmp & 0xF0) >> 4;
|
|
cardinfo->SD_cid.ManufactDate = (tmp & 0x0F) << 8;
|
|
|
|
/*!< Byte 14 */
|
|
tmp = (uint8_t)((CID_Tab[3] & 0x0000FF00) >> 8);
|
|
cardinfo->SD_cid.ManufactDate |= tmp;
|
|
|
|
/*!< Byte 15 */
|
|
tmp = (uint8_t)(CID_Tab[3] & 0x000000FF);
|
|
cardinfo->SD_cid.CID_CRC = (tmp & 0xFE) >> 1;
|
|
cardinfo->SD_cid.Reserved2 = 1;
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Enables wide bus opeartion for the requeseted card if supported by
|
|
* card.
|
|
* @param WideMode: Specifies the SD card wide bus mode.
|
|
* This parameter can be one of the following values:
|
|
* @arg SDIO_BusWide_8b: 8-bit data transfer (Only for MMC)
|
|
* @arg SDIO_BusWide_4b: 4-bit data transfer
|
|
* @arg SDIO_BusWide_1b: 1-bit data transfer
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_GetCardStatus(SD_CardStatus *cardstatus)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint8_t tmp = 0;
|
|
|
|
errorstatus = SD_SendSDStatus((uint32_t *)SDSTATUS_Tab);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Byte 0 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[0] & 0xC0) >> 6);
|
|
cardstatus->DAT_BUS_WIDTH = tmp;
|
|
|
|
/*!< Byte 0 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[0] & 0x20) >> 5);
|
|
cardstatus->SECURED_MODE = tmp;
|
|
|
|
/*!< Byte 2 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[2] & 0xFF));
|
|
cardstatus->SD_CARD_TYPE = tmp << 8;
|
|
|
|
/*!< Byte 3 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[3] & 0xFF));
|
|
cardstatus->SD_CARD_TYPE |= tmp;
|
|
|
|
/*!< Byte 4 */
|
|
tmp = (uint8_t)(SDSTATUS_Tab[4] & 0xFF);
|
|
cardstatus->SIZE_OF_PROTECTED_AREA = tmp << 24;
|
|
|
|
/*!< Byte 5 */
|
|
tmp = (uint8_t)(SDSTATUS_Tab[5] & 0xFF);
|
|
cardstatus->SIZE_OF_PROTECTED_AREA |= tmp << 16;
|
|
|
|
/*!< Byte 6 */
|
|
tmp = (uint8_t)(SDSTATUS_Tab[6] & 0xFF);
|
|
cardstatus->SIZE_OF_PROTECTED_AREA |= tmp << 8;
|
|
|
|
/*!< Byte 7 */
|
|
tmp = (uint8_t)(SDSTATUS_Tab[7] & 0xFF);
|
|
cardstatus->SIZE_OF_PROTECTED_AREA |= tmp;
|
|
|
|
/*!< Byte 8 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[8] & 0xFF));
|
|
cardstatus->SPEED_CLASS = tmp;
|
|
|
|
/*!< Byte 9 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[9] & 0xFF));
|
|
cardstatus->PERFORMANCE_MOVE = tmp;
|
|
|
|
/*!< Byte 10 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[10] & 0xF0) >> 4);
|
|
cardstatus->AU_SIZE = tmp;
|
|
|
|
/*!< Byte 11 */
|
|
tmp = (uint8_t)(SDSTATUS_Tab[11] & 0xFF);
|
|
cardstatus->ERASE_SIZE = tmp << 8;
|
|
|
|
/*!< Byte 12 */
|
|
tmp = (uint8_t)(SDSTATUS_Tab[12] & 0xFF);
|
|
cardstatus->ERASE_SIZE |= tmp;
|
|
|
|
/*!< Byte 13 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[13] & 0xFC) >> 2);
|
|
cardstatus->ERASE_TIMEOUT = tmp;
|
|
|
|
/*!< Byte 13 */
|
|
tmp = (uint8_t)((SDSTATUS_Tab[13] & 0x3));
|
|
cardstatus->ERASE_OFFSET = tmp;
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Enables wide bus opeartion for the requeseted card if supported by
|
|
* card.
|
|
* @param WideMode: Specifies the SD card wide bus mode.
|
|
* This parameter can be one of the following values:
|
|
* @arg SDIO_BusWide_8b: 8-bit data transfer (Only for MMC)
|
|
* @arg SDIO_BusWide_4b: 4-bit data transfer
|
|
* @arg SDIO_BusWide_1b: 1-bit data transfer
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_EnableWideBusOperation(uint32_t WideMode)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
|
|
/*!< MMC Card doesn't support this feature */
|
|
if (SDIO_MULTIMEDIA_CARD == CardType)
|
|
{
|
|
errorstatus = SD_UNSUPPORTED_FEATURE;
|
|
return(errorstatus);
|
|
}
|
|
else if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType))
|
|
{
|
|
if (SDIO_BusWide_8b == WideMode)
|
|
{
|
|
errorstatus = SD_UNSUPPORTED_FEATURE;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_BusWide_4b == WideMode)
|
|
{
|
|
errorstatus = SDEnWideBus(ENABLE);
|
|
|
|
if (SD_OK == errorstatus)
|
|
{
|
|
/*!< Configure the SDIO peripheral */
|
|
SDIO_InitStructure.SDIO_ClockDiv = SDIO_TRANSFER_CLK_DIV;
|
|
SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising;
|
|
SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable;
|
|
SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
|
|
SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_4b;
|
|
SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
|
|
SDIO_Init(&SDIO_InitStructure);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
errorstatus = SDEnWideBus(DISABLE);
|
|
|
|
if (SD_OK == errorstatus)
|
|
{
|
|
/*!< Configure the SDIO peripheral */
|
|
SDIO_InitStructure.SDIO_ClockDiv = SDIO_TRANSFER_CLK_DIV;
|
|
SDIO_InitStructure.SDIO_ClockEdge = SDIO_ClockEdge_Rising;
|
|
SDIO_InitStructure.SDIO_ClockBypass = SDIO_ClockBypass_Disable;
|
|
SDIO_InitStructure.SDIO_ClockPowerSave = SDIO_ClockPowerSave_Disable;
|
|
SDIO_InitStructure.SDIO_BusWide = SDIO_BusWide_1b;
|
|
SDIO_InitStructure.SDIO_HardwareFlowControl = SDIO_HardwareFlowControl_Disable;
|
|
SDIO_Init(&SDIO_InitStructure);
|
|
}
|
|
}
|
|
}
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Selects od Deselects the corresponding card.
|
|
* @param addr: Address of the Card to be selected.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_SelectDeselect(uint64_t addr)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
|
|
/*!< Send CMD7 SDIO_SEL_DESEL_CARD */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)addr;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEL_DESEL_CARD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SEL_DESEL_CARD);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Allows to read one block from a specified address in a card. The Data
|
|
* transfer can be managed by DMA mode or Polling mode.
|
|
* @note This operation should be followed by two functions to check if the
|
|
* DMA Controller and SD Card status.
|
|
* - SD_ReadWaitOperation(): this function insure that the DMA
|
|
* controller has finished all data transfer.
|
|
* - SD_GetStatus(): to check that the SD Card has finished the
|
|
* data transfer and it is ready for data.
|
|
* @param readbuff: pointer to the buffer that will contain the received data
|
|
* @param ReadAddr: Address from where data are to be read.
|
|
* @param BlockSize: the SD card Data block size. The Block size should be 512.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_ReadBlock(uint8_t *readbuff, uint64_t ReadAddr, uint16_t BlockSize)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
#if defined (SD_POLLING_MODE)
|
|
uint32_t count = 0, *tempbuff = (uint32_t *)readbuff;
|
|
#endif
|
|
|
|
TransferError = SD_OK;
|
|
TransferEnd = 0;
|
|
StopCondition = 0;
|
|
|
|
SDIO->DCTRL = 0x0;
|
|
|
|
#if defined (SD_DMA_MODE)
|
|
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE);
|
|
SDIO_DMACmd(ENABLE);
|
|
SD_LowLevel_DMA_RxConfig((uint32_t *)readbuff, BlockSize);
|
|
#endif
|
|
|
|
if (CardType == SDIO_HIGH_CAPACITY_SD_CARD)
|
|
{
|
|
BlockSize = 512;
|
|
ReadAddr /= 512;
|
|
}
|
|
|
|
/* Set Block Size for Card */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN);
|
|
|
|
if (SD_OK != errorstatus)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
|
|
SDIO_DataInitStructure.SDIO_DataLength = BlockSize;
|
|
SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) 9 << 4;
|
|
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO;
|
|
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
|
|
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
|
|
SDIO_DataConfig(&SDIO_DataInitStructure);
|
|
|
|
/*!< Send CMD17 READ_SINGLE_BLOCK */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)ReadAddr;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_READ_SINGLE_BLOCK;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_READ_SINGLE_BLOCK);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
#if defined (SD_POLLING_MODE)
|
|
/*!< In case of single block transfer, no need of stop transfer at all.*/
|
|
/*!< Polling mode */
|
|
while (!(SDIO->STA &(SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DBCKEND | SDIO_FLAG_STBITERR)))
|
|
{
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET)
|
|
{
|
|
for (count = 0; count < 8; count++)
|
|
{
|
|
*(tempbuff + count) = SDIO_ReadData();
|
|
}
|
|
tempbuff += 8;
|
|
}
|
|
}
|
|
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
|
|
errorstatus = SD_DATA_TIMEOUT;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
|
|
errorstatus = SD_DATA_CRC_FAIL;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_RXOVERR);
|
|
errorstatus = SD_RX_OVERRUN;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
|
|
errorstatus = SD_START_BIT_ERR;
|
|
return(errorstatus);
|
|
}
|
|
count = SD_DATATIMEOUT;
|
|
while ((SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) && (count > 0))
|
|
{
|
|
*tempbuff = SDIO_ReadData();
|
|
tempbuff++;
|
|
count--;
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
#endif
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Allows to read blocks from a specified address in a card. The Data
|
|
* transfer can be managed by DMA mode or Polling mode.
|
|
* @note This operation should be followed by two functions to check if the
|
|
* DMA Controller and SD Card status.
|
|
* - SD_ReadWaitOperation(): this function insure that the DMA
|
|
* controller has finished all data transfer.
|
|
* - SD_GetStatus(): to check that the SD Card has finished the
|
|
* data transfer and it is ready for data.
|
|
* @param readbuff: pointer to the buffer that will contain the received data.
|
|
* @param ReadAddr: Address from where data are to be read.
|
|
* @param BlockSize: the SD card Data block size. The Block size should be 512.
|
|
* @param NumberOfBlocks: number of blocks to be read.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_ReadMultiBlocks(uint8_t *readbuff, uint64_t ReadAddr, uint16_t BlockSize, uint32_t NumberOfBlocks)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
TransferError = SD_OK;
|
|
TransferEnd = 0;
|
|
StopCondition = 1;
|
|
|
|
SDIO->DCTRL = 0x0;
|
|
|
|
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE);
|
|
SD_LowLevel_DMA_RxConfig((uint32_t *)readbuff, (NumberOfBlocks * BlockSize));
|
|
SDIO_DMACmd(ENABLE);
|
|
|
|
if (CardType == SDIO_HIGH_CAPACITY_SD_CARD)
|
|
{
|
|
BlockSize = 512;
|
|
ReadAddr /= 512;
|
|
}
|
|
|
|
/*!< Set Block Size for Card */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN);
|
|
|
|
if (SD_OK != errorstatus)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
|
|
SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize;
|
|
SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) 9 << 4;
|
|
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO;
|
|
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
|
|
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
|
|
SDIO_DataConfig(&SDIO_DataInitStructure);
|
|
|
|
/*!< Send CMD18 READ_MULT_BLOCK with argument data address */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)ReadAddr;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_READ_MULT_BLOCK;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_READ_MULT_BLOCK);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief This function waits until the SDIO DMA data transfer is finished.
|
|
* This function should be called after SDIO_ReadMultiBlocks() function
|
|
* to insure that all data sent by the card are already transferred by
|
|
* the DMA controller.
|
|
* @param None.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_WaitReadOperation(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t timeout;
|
|
|
|
timeout = SD_DATATIMEOUT;
|
|
|
|
while ((DMAEndOfTransfer == 0x00) && (TransferEnd == 0) && (TransferError == SD_OK) && (timeout > 0))
|
|
{
|
|
timeout--;
|
|
}
|
|
|
|
DMAEndOfTransfer = 0x00;
|
|
|
|
timeout = SD_DATATIMEOUT;
|
|
|
|
while(((SDIO->STA & SDIO_FLAG_RXACT)) && (timeout > 0))
|
|
{
|
|
timeout--;
|
|
}
|
|
|
|
if (StopCondition == 1)
|
|
{
|
|
errorstatus = SD_StopTransfer();
|
|
StopCondition = 0;
|
|
}
|
|
|
|
if ((timeout == 0) && (errorstatus == SD_OK))
|
|
{
|
|
errorstatus = SD_DATA_TIMEOUT;
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
if (TransferError != SD_OK)
|
|
{
|
|
return(TransferError);
|
|
}
|
|
else
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Allows to write one block starting from a specified address in a card.
|
|
* The Data transfer can be managed by DMA mode or Polling mode.
|
|
* @note This operation should be followed by two functions to check if the
|
|
* DMA Controller and SD Card status.
|
|
* - SD_ReadWaitOperation(): this function insure that the DMA
|
|
* controller has finished all data transfer.
|
|
* - SD_GetStatus(): to check that the SD Card has finished the
|
|
* data transfer and it is ready for data.
|
|
* @param writebuff: pointer to the buffer that contain the data to be transferred.
|
|
* @param WriteAddr: Address from where data are to be read.
|
|
* @param BlockSize: the SD card Data block size. The Block size should be 512.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_WriteBlock(uint8_t *writebuff, uint64_t WriteAddr, uint16_t BlockSize)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
|
|
#if defined (SD_POLLING_MODE)
|
|
uint32_t bytestransferred = 0, count = 0, restwords = 0;
|
|
uint32_t *tempbuff = (uint32_t *)writebuff;
|
|
#endif
|
|
|
|
TransferError = SD_OK;
|
|
TransferEnd = 0;
|
|
StopCondition = 0;
|
|
|
|
SDIO->DCTRL = 0x0;
|
|
|
|
#if defined (SD_DMA_MODE)
|
|
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE);
|
|
SD_LowLevel_DMA_TxConfig((uint32_t *)writebuff, BlockSize);
|
|
SDIO_DMACmd(ENABLE);
|
|
#endif
|
|
|
|
if (CardType == SDIO_HIGH_CAPACITY_SD_CARD)
|
|
{
|
|
BlockSize = 512;
|
|
WriteAddr /= 512;
|
|
}
|
|
|
|
/* Set Block Size for Card */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN);
|
|
|
|
if (SD_OK != errorstatus)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Send CMD24 WRITE_SINGLE_BLOCK */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)WriteAddr;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_WRITE_SINGLE_BLOCK;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_WRITE_SINGLE_BLOCK);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
|
|
SDIO_DataInitStructure.SDIO_DataLength = BlockSize;
|
|
SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) 9 << 4;
|
|
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard;
|
|
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
|
|
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
|
|
SDIO_DataConfig(&SDIO_DataInitStructure);
|
|
|
|
/*!< In case of single data block transfer no need of stop command at all */
|
|
#if defined (SD_POLLING_MODE)
|
|
while (!(SDIO->STA & (SDIO_FLAG_DBCKEND | SDIO_FLAG_TXUNDERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_STBITERR)))
|
|
{
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_TXFIFOHE) != RESET)
|
|
{
|
|
if ((512 - bytestransferred) < 32)
|
|
{
|
|
restwords = ((512 - bytestransferred) % 4 == 0) ? ((512 - bytestransferred) / 4) : (( 512 - bytestransferred) / 4 + 1);
|
|
for (count = 0; count < restwords; count++, tempbuff++, bytestransferred += 4)
|
|
{
|
|
SDIO_WriteData(*tempbuff);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (count = 0; count < 8; count++)
|
|
{
|
|
SDIO_WriteData(*(tempbuff + count));
|
|
}
|
|
tempbuff += 8;
|
|
bytestransferred += 32;
|
|
}
|
|
}
|
|
}
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
|
|
errorstatus = SD_DATA_TIMEOUT;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
|
|
errorstatus = SD_DATA_CRC_FAIL;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_TXUNDERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_TXUNDERR);
|
|
errorstatus = SD_TX_UNDERRUN;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
|
|
errorstatus = SD_START_BIT_ERR;
|
|
return(errorstatus);
|
|
}
|
|
|
|
#endif
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Allows to write blocks starting from a specified address in a card.
|
|
* The Data transfer can be managed by DMA mode only.
|
|
* @note This operation should be followed by two functions to check if the
|
|
* DMA Controller and SD Card status.
|
|
* - SD_ReadWaitOperation(): this function insure that the DMA
|
|
* controller has finished all data transfer.
|
|
* - SD_GetStatus(): to check that the SD Card has finished the
|
|
* data transfer and it is ready for data.
|
|
* @param WriteAddr: Address from where data are to be read.
|
|
* @param writebuff: pointer to the buffer that contain the data to be transferred.
|
|
* @param BlockSize: the SD card Data block size. The Block size should be 512.
|
|
* @param NumberOfBlocks: number of blocks to be written.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_WriteMultiBlocks(uint8_t *writebuff, uint64_t WriteAddr, uint16_t BlockSize, uint32_t NumberOfBlocks)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
|
|
TransferError = SD_OK;
|
|
TransferEnd = 0;
|
|
StopCondition = 1;
|
|
SDIO->DCTRL = 0x0;
|
|
|
|
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND | SDIO_IT_RXOVERR | SDIO_IT_STBITERR, ENABLE);
|
|
SD_LowLevel_DMA_TxConfig((uint32_t *)writebuff, (NumberOfBlocks * BlockSize));
|
|
SDIO_DMACmd(ENABLE);
|
|
|
|
if (CardType == SDIO_HIGH_CAPACITY_SD_CARD)
|
|
{
|
|
BlockSize = 512;
|
|
WriteAddr /= 512;
|
|
}
|
|
|
|
/* Set Block Size for Card */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) BlockSize;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN);
|
|
|
|
if (SD_OK != errorstatus)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< To improve performance */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) (RCA << 16);
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
/*!< To improve performance */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)NumberOfBlocks;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCK_COUNT;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SET_BLOCK_COUNT);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
|
|
/*!< Send CMD25 WRITE_MULT_BLOCK with argument data address */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)WriteAddr;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_WRITE_MULT_BLOCK;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_WRITE_MULT_BLOCK);
|
|
|
|
if (SD_OK != errorstatus)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
|
|
SDIO_DataInitStructure.SDIO_DataLength = NumberOfBlocks * BlockSize;
|
|
SDIO_DataInitStructure.SDIO_DataBlockSize = (uint32_t) 9 << 4;
|
|
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToCard;
|
|
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
|
|
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
|
|
SDIO_DataConfig(&SDIO_DataInitStructure);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief This function waits until the SDIO DMA data transfer is finished.
|
|
* This function should be called after SDIO_WriteBlock() and
|
|
* SDIO_WriteMultiBlocks() function to insure that all data sent by the
|
|
* card are already transferred by the DMA controller.
|
|
* @param None.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_WaitWriteOperation(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t timeout;
|
|
|
|
timeout = SD_DATATIMEOUT;
|
|
|
|
while ((DMAEndOfTransfer == 0x00) && (TransferEnd == 0) && (TransferError == SD_OK) && (timeout > 0))
|
|
{
|
|
timeout--;
|
|
}
|
|
|
|
DMAEndOfTransfer = 0x00;
|
|
|
|
timeout = SD_DATATIMEOUT;
|
|
|
|
while(((SDIO->STA & SDIO_FLAG_TXACT)) && (timeout > 0))
|
|
{
|
|
timeout--;
|
|
}
|
|
|
|
if (StopCondition == 1)
|
|
{
|
|
errorstatus = SD_StopTransfer();
|
|
StopCondition = 0;
|
|
}
|
|
|
|
if ((timeout == 0) && (errorstatus == SD_OK))
|
|
{
|
|
errorstatus = SD_DATA_TIMEOUT;
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
if (TransferError != SD_OK)
|
|
{
|
|
return(TransferError);
|
|
}
|
|
else
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Gets the cuurent data transfer state.
|
|
* @param None
|
|
* @retval SDTransferState: Data Transfer state.
|
|
* This value can be:
|
|
* - SD_TRANSFER_OK: No data transfer is acting
|
|
* - SD_TRANSFER_BUSY: Data transfer is acting
|
|
*/
|
|
SDTransferState SD_GetTransferState(void)
|
|
{
|
|
if (SDIO->STA & (SDIO_FLAG_TXACT | SDIO_FLAG_RXACT))
|
|
{
|
|
return(SD_TRANSFER_BUSY);
|
|
}
|
|
else
|
|
{
|
|
return(SD_TRANSFER_OK);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Aborts an ongoing data transfer.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_StopTransfer(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
|
|
/*!< Send CMD12 STOP_TRANSMISSION */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_STOP_TRANSMISSION;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_STOP_TRANSMISSION);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Allows to erase memory area specified for the given card.
|
|
* @param startaddr: the start address.
|
|
* @param endaddr: the end address.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_Erase(uint64_t startaddr, uint64_t endaddr)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t delay = 0;
|
|
__IO uint32_t maxdelay = 0;
|
|
uint8_t cardstate = 0;
|
|
|
|
/*!< Check if the card coomnd class supports erase command */
|
|
if (((CSD_Tab[1] >> 20) & SD_CCCC_ERASE) == 0)
|
|
{
|
|
errorstatus = SD_REQUEST_NOT_APPLICABLE;
|
|
return(errorstatus);
|
|
}
|
|
|
|
maxdelay = 120000 / ((SDIO->CLKCR & 0xFF) + 2);
|
|
|
|
if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED)
|
|
{
|
|
errorstatus = SD_LOCK_UNLOCK_FAILED;
|
|
return(errorstatus);
|
|
}
|
|
|
|
if (CardType == SDIO_HIGH_CAPACITY_SD_CARD)
|
|
{
|
|
startaddr /= 512;
|
|
endaddr /= 512;
|
|
}
|
|
|
|
/*!< According to sd-card spec 1.0 ERASE_GROUP_START (CMD32) and erase_group_end(CMD33) */
|
|
if ((SDIO_STD_CAPACITY_SD_CARD_V1_1 == CardType) || (SDIO_STD_CAPACITY_SD_CARD_V2_0 == CardType) || (SDIO_HIGH_CAPACITY_SD_CARD == CardType))
|
|
{
|
|
/*!< Send CMD32 SD_ERASE_GRP_START with argument as addr */
|
|
SDIO_CmdInitStructure.SDIO_Argument =(uint32_t)startaddr;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_ERASE_GRP_START;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SD_ERASE_GRP_START);
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Send CMD33 SD_ERASE_GRP_END with argument as addr */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)endaddr;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_ERASE_GRP_END;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SD_ERASE_GRP_END);
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
}
|
|
|
|
/*!< Send CMD38 ERASE */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_ERASE;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_ERASE);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
for (delay = 0; delay < maxdelay; delay++)
|
|
{}
|
|
|
|
/*!< Wait till the card is in programming state */
|
|
errorstatus = IsCardProgramming(&cardstate);
|
|
delay = SD_DATATIMEOUT;
|
|
while ((delay > 0) && (errorstatus == SD_OK) && ((SD_CARD_PROGRAMMING == cardstate) || (SD_CARD_RECEIVING == cardstate)))
|
|
{
|
|
errorstatus = IsCardProgramming(&cardstate);
|
|
delay--;
|
|
}
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Returns the current card's status.
|
|
* @param pcardstatus: pointer to the buffer that will contain the SD card
|
|
* status (Card Status register).
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_SendStatus(uint32_t *pcardstatus)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
|
|
if (pcardstatus == NULL)
|
|
{
|
|
errorstatus = SD_INVALID_PARAMETER;
|
|
return(errorstatus);
|
|
}
|
|
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_STATUS;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SEND_STATUS);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
*pcardstatus = SDIO_GetResponse(SDIO_RESP1);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Returns the current SD card's status.
|
|
* @param psdstatus: pointer to the buffer that will contain the SD card status
|
|
* (SD Status register).
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_SendSDStatus(uint32_t *psdstatus)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t count = 0;
|
|
|
|
if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED)
|
|
{
|
|
errorstatus = SD_LOCK_UNLOCK_FAILED;
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Set block size for card if it is not equal to current block size for card. */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 64;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< CMD55 */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
|
|
SDIO_DataInitStructure.SDIO_DataLength = 64;
|
|
SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_64b;
|
|
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO;
|
|
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
|
|
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
|
|
SDIO_DataConfig(&SDIO_DataInitStructure);
|
|
|
|
/*!< Send ACMD13 SD_APP_STAUS with argument as card's RCA.*/
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_APP_STAUS;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
errorstatus = CmdResp1Error(SD_CMD_SD_APP_STAUS);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
while (!(SDIO->STA &(SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DBCKEND | SDIO_FLAG_STBITERR)))
|
|
{
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET)
|
|
{
|
|
for (count = 0; count < 8; count++)
|
|
{
|
|
*(psdstatus + count) = SDIO_ReadData();
|
|
}
|
|
psdstatus += 8;
|
|
}
|
|
}
|
|
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
|
|
errorstatus = SD_DATA_TIMEOUT;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
|
|
errorstatus = SD_DATA_CRC_FAIL;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_RXOVERR);
|
|
errorstatus = SD_RX_OVERRUN;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
|
|
errorstatus = SD_START_BIT_ERR;
|
|
return(errorstatus);
|
|
}
|
|
|
|
count = SD_DATATIMEOUT;
|
|
while ((SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) && (count > 0))
|
|
{
|
|
*psdstatus = SDIO_ReadData();
|
|
psdstatus++;
|
|
count--;
|
|
}
|
|
/*!< Clear all the static status flags*/
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Allows to process all the interrupts that are high.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_ProcessIRQSrc(void)
|
|
{
|
|
if (SDIO_GetITStatus(SDIO_IT_DATAEND) != RESET)
|
|
{
|
|
TransferError = SD_OK;
|
|
SDIO_ClearITPendingBit(SDIO_IT_DATAEND);
|
|
TransferEnd = 1;
|
|
}
|
|
else if (SDIO_GetITStatus(SDIO_IT_DCRCFAIL) != RESET)
|
|
{
|
|
SDIO_ClearITPendingBit(SDIO_IT_DCRCFAIL);
|
|
TransferError = SD_DATA_CRC_FAIL;
|
|
}
|
|
else if (SDIO_GetITStatus(SDIO_IT_DTIMEOUT) != RESET)
|
|
{
|
|
SDIO_ClearITPendingBit(SDIO_IT_DTIMEOUT);
|
|
TransferError = SD_DATA_TIMEOUT;
|
|
}
|
|
else if (SDIO_GetITStatus(SDIO_IT_RXOVERR) != RESET)
|
|
{
|
|
SDIO_ClearITPendingBit(SDIO_IT_RXOVERR);
|
|
TransferError = SD_RX_OVERRUN;
|
|
}
|
|
else if (SDIO_GetITStatus(SDIO_IT_TXUNDERR) != RESET)
|
|
{
|
|
SDIO_ClearITPendingBit(SDIO_IT_TXUNDERR);
|
|
TransferError = SD_TX_UNDERRUN;
|
|
}
|
|
else if (SDIO_GetITStatus(SDIO_IT_STBITERR) != RESET)
|
|
{
|
|
SDIO_ClearITPendingBit(SDIO_IT_STBITERR);
|
|
TransferError = SD_START_BIT_ERR;
|
|
}
|
|
|
|
SDIO_ITConfig(SDIO_IT_DCRCFAIL | SDIO_IT_DTIMEOUT | SDIO_IT_DATAEND |
|
|
SDIO_IT_TXFIFOHE | SDIO_IT_RXFIFOHF | SDIO_IT_TXUNDERR |
|
|
SDIO_IT_RXOVERR | SDIO_IT_STBITERR, DISABLE);
|
|
return(TransferError);
|
|
}
|
|
|
|
/**
|
|
* @brief This function waits until the SDIO DMA data transfer is finished.
|
|
* @param None.
|
|
* @retval None.
|
|
*/
|
|
void SD_ProcessDMAIRQ(void)
|
|
{
|
|
if(DMA2->LISR & SD_SDIO_DMA_FLAG_TCIF)
|
|
{
|
|
DMAEndOfTransfer = 0x01;
|
|
DMA_ClearFlag(SD_SDIO_DMA_STREAM, SD_SDIO_DMA_FLAG_TCIF|SD_SDIO_DMA_FLAG_FEIF);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Checks for error conditions for CMD0.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error CmdError(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t timeout;
|
|
|
|
timeout = SDIO_CMD0TIMEOUT; /*!< 10000 */
|
|
|
|
while ((timeout > 0) && (SDIO_GetFlagStatus(SDIO_FLAG_CMDSENT) == RESET))
|
|
{
|
|
timeout--;
|
|
}
|
|
|
|
if (timeout == 0)
|
|
{
|
|
errorstatus = SD_CMD_RSP_TIMEOUT;
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Checks for error conditions for R7 response.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error CmdResp7Error(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t status;
|
|
uint32_t timeout = SDIO_CMD0TIMEOUT;
|
|
|
|
status = SDIO->STA;
|
|
|
|
while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)) && (timeout > 0))
|
|
{
|
|
timeout--;
|
|
status = SDIO->STA;
|
|
}
|
|
|
|
if ((timeout == 0) || (status & SDIO_FLAG_CTIMEOUT))
|
|
{
|
|
/*!< Card is not V2.0 complient or card does not support the set voltage range */
|
|
errorstatus = SD_CMD_RSP_TIMEOUT;
|
|
SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT);
|
|
return(errorstatus);
|
|
}
|
|
|
|
if (status & SDIO_FLAG_CMDREND)
|
|
{
|
|
/*!< Card is SD V2.0 compliant */
|
|
errorstatus = SD_OK;
|
|
SDIO_ClearFlag(SDIO_FLAG_CMDREND);
|
|
return(errorstatus);
|
|
}
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Checks for error conditions for R1 response.
|
|
* @param cmd: The sent command index.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error CmdResp1Error(uint8_t cmd)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t status;
|
|
uint32_t response_r1;
|
|
|
|
status = SDIO->STA;
|
|
|
|
while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)))
|
|
{
|
|
status = SDIO->STA;
|
|
}
|
|
|
|
if (status & SDIO_FLAG_CTIMEOUT)
|
|
{
|
|
errorstatus = SD_CMD_RSP_TIMEOUT;
|
|
SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT);
|
|
return(errorstatus);
|
|
}
|
|
else if (status & SDIO_FLAG_CCRCFAIL)
|
|
{
|
|
errorstatus = SD_CMD_CRC_FAIL;
|
|
SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL);
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Check response received is of desired command */
|
|
if (SDIO_GetCommandResponse() != cmd)
|
|
{
|
|
errorstatus = SD_ILLEGAL_CMD;
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
/*!< We have received response, retrieve it for analysis */
|
|
response_r1 = SDIO_GetResponse(SDIO_RESP1);
|
|
|
|
if ((response_r1 & SD_OCR_ERRORBITS) == SD_ALLZERO)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_ADDR_OUT_OF_RANGE)
|
|
{
|
|
return(SD_ADDR_OUT_OF_RANGE);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_ADDR_MISALIGNED)
|
|
{
|
|
return(SD_ADDR_MISALIGNED);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_BLOCK_LEN_ERR)
|
|
{
|
|
return(SD_BLOCK_LEN_ERR);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_ERASE_SEQ_ERR)
|
|
{
|
|
return(SD_ERASE_SEQ_ERR);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_BAD_ERASE_PARAM)
|
|
{
|
|
return(SD_BAD_ERASE_PARAM);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_WRITE_PROT_VIOLATION)
|
|
{
|
|
return(SD_WRITE_PROT_VIOLATION);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_LOCK_UNLOCK_FAILED)
|
|
{
|
|
return(SD_LOCK_UNLOCK_FAILED);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_COM_CRC_FAILED)
|
|
{
|
|
return(SD_COM_CRC_FAILED);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_ILLEGAL_CMD)
|
|
{
|
|
return(SD_ILLEGAL_CMD);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_CARD_ECC_FAILED)
|
|
{
|
|
return(SD_CARD_ECC_FAILED);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_CC_ERROR)
|
|
{
|
|
return(SD_CC_ERROR);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_GENERAL_UNKNOWN_ERROR)
|
|
{
|
|
return(SD_GENERAL_UNKNOWN_ERROR);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_STREAM_READ_UNDERRUN)
|
|
{
|
|
return(SD_STREAM_READ_UNDERRUN);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_STREAM_WRITE_OVERRUN)
|
|
{
|
|
return(SD_STREAM_WRITE_OVERRUN);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_CID_CSD_OVERWRIETE)
|
|
{
|
|
return(SD_CID_CSD_OVERWRITE);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_WP_ERASE_SKIP)
|
|
{
|
|
return(SD_WP_ERASE_SKIP);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_CARD_ECC_DISABLED)
|
|
{
|
|
return(SD_CARD_ECC_DISABLED);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_ERASE_RESET)
|
|
{
|
|
return(SD_ERASE_RESET);
|
|
}
|
|
|
|
if (response_r1 & SD_OCR_AKE_SEQ_ERROR)
|
|
{
|
|
return(SD_AKE_SEQ_ERROR);
|
|
}
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Checks for error conditions for R3 (OCR) response.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error CmdResp3Error(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t status;
|
|
|
|
status = SDIO->STA;
|
|
|
|
while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)))
|
|
{
|
|
status = SDIO->STA;
|
|
}
|
|
|
|
if (status & SDIO_FLAG_CTIMEOUT)
|
|
{
|
|
errorstatus = SD_CMD_RSP_TIMEOUT;
|
|
SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT);
|
|
return(errorstatus);
|
|
}
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Checks for error conditions for R2 (CID or CSD) response.
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error CmdResp2Error(void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t status;
|
|
|
|
status = SDIO->STA;
|
|
|
|
while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CTIMEOUT | SDIO_FLAG_CMDREND)))
|
|
{
|
|
status = SDIO->STA;
|
|
}
|
|
|
|
if (status & SDIO_FLAG_CTIMEOUT)
|
|
{
|
|
errorstatus = SD_CMD_RSP_TIMEOUT;
|
|
SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT);
|
|
return(errorstatus);
|
|
}
|
|
else if (status & SDIO_FLAG_CCRCFAIL)
|
|
{
|
|
errorstatus = SD_CMD_CRC_FAIL;
|
|
SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL);
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Checks for error conditions for R6 (RCA) response.
|
|
* @param cmd: The sent command index.
|
|
* @param prca: pointer to the variable that will contain the SD card relative
|
|
* address RCA.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error CmdResp6Error(uint8_t cmd, uint16_t *prca)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t status;
|
|
uint32_t response_r1;
|
|
|
|
status = SDIO->STA;
|
|
|
|
while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CTIMEOUT | SDIO_FLAG_CMDREND)))
|
|
{
|
|
status = SDIO->STA;
|
|
}
|
|
|
|
if (status & SDIO_FLAG_CTIMEOUT)
|
|
{
|
|
errorstatus = SD_CMD_RSP_TIMEOUT;
|
|
SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT);
|
|
return(errorstatus);
|
|
}
|
|
else if (status & SDIO_FLAG_CCRCFAIL)
|
|
{
|
|
errorstatus = SD_CMD_CRC_FAIL;
|
|
SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL);
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Check response received is of desired command */
|
|
if (SDIO_GetCommandResponse() != cmd)
|
|
{
|
|
errorstatus = SD_ILLEGAL_CMD;
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
/*!< We have received response, retrieve it. */
|
|
response_r1 = SDIO_GetResponse(SDIO_RESP1);
|
|
|
|
if (SD_ALLZERO == (response_r1 & (SD_R6_GENERAL_UNKNOWN_ERROR | SD_R6_ILLEGAL_CMD | SD_R6_COM_CRC_FAILED)))
|
|
{
|
|
*prca = (uint16_t) (response_r1 >> 16);
|
|
return(errorstatus);
|
|
}
|
|
|
|
if (response_r1 & SD_R6_GENERAL_UNKNOWN_ERROR)
|
|
{
|
|
return(SD_GENERAL_UNKNOWN_ERROR);
|
|
}
|
|
|
|
if (response_r1 & SD_R6_ILLEGAL_CMD)
|
|
{
|
|
return(SD_ILLEGAL_CMD);
|
|
}
|
|
|
|
if (response_r1 & SD_R6_COM_CRC_FAILED)
|
|
{
|
|
return(SD_COM_CRC_FAILED);
|
|
}
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Enables or disables the SDIO wide bus mode.
|
|
* @param NewState: new state of the SDIO wide bus mode.
|
|
* This parameter can be: ENABLE or DISABLE.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error SDEnWideBus(FunctionalState NewState)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
|
|
uint32_t scr[2] = {0, 0};
|
|
|
|
if (SDIO_GetResponse(SDIO_RESP1) & SD_CARD_LOCKED)
|
|
{
|
|
errorstatus = SD_LOCK_UNLOCK_FAILED;
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Get SCR Register */
|
|
errorstatus = FindSCR(RCA, scr);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< If wide bus operation to be enabled */
|
|
if (NewState == ENABLE)
|
|
{
|
|
/*!< If requested card supports wide bus operation */
|
|
if ((scr[1] & SD_WIDE_BUS_SUPPORT) != SD_ALLZERO)
|
|
{
|
|
/*!< Send CMD55 APP_CMD with argument as card's RCA.*/
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Send ACMD6 APP_CMD with argument as 2 for wide bus mode */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x2;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_SD_SET_BUSWIDTH;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_SD_SET_BUSWIDTH);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
return(errorstatus);
|
|
}
|
|
else
|
|
{
|
|
errorstatus = SD_REQUEST_NOT_APPLICABLE;
|
|
return(errorstatus);
|
|
}
|
|
} /*!< If wide bus operation to be disabled */
|
|
else
|
|
{
|
|
/*!< If requested card supports 1 bit mode operation */
|
|
if ((scr[1] & SD_SINGLE_BUS_SUPPORT) != SD_ALLZERO)
|
|
{
|
|
/*!< Send CMD55 APP_CMD with argument as card's RCA.*/
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Send ACMD6 APP_CMD with argument as 2 for wide bus mode */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x00;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_SD_SET_BUSWIDTH;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_SD_SET_BUSWIDTH);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
return(errorstatus);
|
|
}
|
|
else
|
|
{
|
|
errorstatus = SD_REQUEST_NOT_APPLICABLE;
|
|
return(errorstatus);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Checks if the SD card is in programming state.
|
|
* @param pstatus: pointer to the variable that will contain the SD card state.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error IsCardProgramming(uint8_t *pstatus)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
__IO uint32_t respR1 = 0, status = 0;
|
|
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SEND_STATUS;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
status = SDIO->STA;
|
|
while (!(status & (SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT)))
|
|
{
|
|
status = SDIO->STA;
|
|
}
|
|
|
|
if (status & SDIO_FLAG_CTIMEOUT)
|
|
{
|
|
errorstatus = SD_CMD_RSP_TIMEOUT;
|
|
SDIO_ClearFlag(SDIO_FLAG_CTIMEOUT);
|
|
return(errorstatus);
|
|
}
|
|
else if (status & SDIO_FLAG_CCRCFAIL)
|
|
{
|
|
errorstatus = SD_CMD_CRC_FAIL;
|
|
SDIO_ClearFlag(SDIO_FLAG_CCRCFAIL);
|
|
return(errorstatus);
|
|
}
|
|
|
|
status = (uint32_t)SDIO_GetCommandResponse();
|
|
|
|
/*!< Check response received is of desired command */
|
|
if (status != SD_CMD_SEND_STATUS)
|
|
{
|
|
errorstatus = SD_ILLEGAL_CMD;
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
|
|
/*!< We have received response, retrieve it for analysis */
|
|
respR1 = SDIO_GetResponse(SDIO_RESP1);
|
|
|
|
/*!< Find out card status */
|
|
*pstatus = (uint8_t) ((respR1 >> 9) & 0x0000000F);
|
|
|
|
if ((respR1 & SD_OCR_ERRORBITS) == SD_ALLZERO)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_ADDR_OUT_OF_RANGE)
|
|
{
|
|
return(SD_ADDR_OUT_OF_RANGE);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_ADDR_MISALIGNED)
|
|
{
|
|
return(SD_ADDR_MISALIGNED);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_BLOCK_LEN_ERR)
|
|
{
|
|
return(SD_BLOCK_LEN_ERR);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_ERASE_SEQ_ERR)
|
|
{
|
|
return(SD_ERASE_SEQ_ERR);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_BAD_ERASE_PARAM)
|
|
{
|
|
return(SD_BAD_ERASE_PARAM);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_WRITE_PROT_VIOLATION)
|
|
{
|
|
return(SD_WRITE_PROT_VIOLATION);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_LOCK_UNLOCK_FAILED)
|
|
{
|
|
return(SD_LOCK_UNLOCK_FAILED);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_COM_CRC_FAILED)
|
|
{
|
|
return(SD_COM_CRC_FAILED);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_ILLEGAL_CMD)
|
|
{
|
|
return(SD_ILLEGAL_CMD);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_CARD_ECC_FAILED)
|
|
{
|
|
return(SD_CARD_ECC_FAILED);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_CC_ERROR)
|
|
{
|
|
return(SD_CC_ERROR);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_GENERAL_UNKNOWN_ERROR)
|
|
{
|
|
return(SD_GENERAL_UNKNOWN_ERROR);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_STREAM_READ_UNDERRUN)
|
|
{
|
|
return(SD_STREAM_READ_UNDERRUN);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_STREAM_WRITE_OVERRUN)
|
|
{
|
|
return(SD_STREAM_WRITE_OVERRUN);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_CID_CSD_OVERWRIETE)
|
|
{
|
|
return(SD_CID_CSD_OVERWRITE);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_WP_ERASE_SKIP)
|
|
{
|
|
return(SD_WP_ERASE_SKIP);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_CARD_ECC_DISABLED)
|
|
{
|
|
return(SD_CARD_ECC_DISABLED);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_ERASE_RESET)
|
|
{
|
|
return(SD_ERASE_RESET);
|
|
}
|
|
|
|
if (respR1 & SD_OCR_AKE_SEQ_ERROR)
|
|
{
|
|
return(SD_AKE_SEQ_ERROR);
|
|
}
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Find the SD card SCR register value.
|
|
* @param rca: selected card address.
|
|
* @param pscr: pointer to the buffer that will contain the SCR value.
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
static SD_Error FindSCR(uint16_t rca, uint32_t *pscr)
|
|
{
|
|
uint32_t index = 0;
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t tempscr[2] = {0, 0};
|
|
|
|
/*!< Set Block Size To 8 Bytes */
|
|
/*!< Send CMD55 APP_CMD with argument as card's RCA */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)8;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Send CMD55 APP_CMD with argument as card's RCA */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t) RCA << 16;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_APP_CMD;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_APP_CMD);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
|
|
SDIO_DataInitStructure.SDIO_DataLength = 8;
|
|
SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_8b;
|
|
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO;
|
|
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
|
|
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
|
|
SDIO_DataConfig(&SDIO_DataInitStructure);
|
|
|
|
|
|
/*!< Send ACMD51 SD_APP_SEND_SCR with argument as 0 */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x0;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SD_APP_SEND_SCR;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
|
|
errorstatus = CmdResp1Error(SD_CMD_SD_APP_SEND_SCR);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
while (!(SDIO->STA & (SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DBCKEND | SDIO_FLAG_STBITERR)))
|
|
{
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET)
|
|
{
|
|
*(tempscr + index) = SDIO_ReadData();
|
|
index++;
|
|
}
|
|
}
|
|
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
|
|
errorstatus = SD_DATA_TIMEOUT;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
|
|
errorstatus = SD_DATA_CRC_FAIL;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_RXOVERR);
|
|
errorstatus = SD_RX_OVERRUN;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
|
|
errorstatus = SD_START_BIT_ERR;
|
|
return(errorstatus);
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
*(pscr + 1) = ((tempscr[0] & SD_0TO7BITS) << 24) | ((tempscr[0] & SD_8TO15BITS) << 8) | ((tempscr[0] & SD_16TO23BITS) >> 8) | ((tempscr[0] & SD_24TO31BITS) >> 24);
|
|
|
|
*(pscr) = ((tempscr[1] & SD_0TO7BITS) << 24) | ((tempscr[1] & SD_8TO15BITS) << 8) | ((tempscr[1] & SD_16TO23BITS) >> 8) | ((tempscr[1] & SD_24TO31BITS) >> 24);
|
|
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @brief Converts the number of bytes in power of two and returns the power.
|
|
* @param NumberOfBytes: number of bytes.
|
|
* @retval None
|
|
*/
|
|
uint8_t convert_from_bytes_to_power_of_two(uint16_t NumberOfBytes)
|
|
{
|
|
uint8_t count = 0;
|
|
|
|
while (NumberOfBytes != 1)
|
|
{
|
|
NumberOfBytes >>= 1;
|
|
count++;
|
|
}
|
|
return(count);
|
|
}
|
|
|
|
/**
|
|
* @brief Switch mode High-Speed
|
|
* @note This function must be used after "Transfer State"
|
|
* @note This operation should be followed by the configuration
|
|
* of PLL to have SDIOCK clock between 67 and 75 MHz
|
|
* @param None
|
|
* @retval SD_Error: SD Card Error code.
|
|
*/
|
|
SD_Error SD_HighSpeed (void)
|
|
{
|
|
SD_Error errorstatus = SD_OK;
|
|
uint32_t scr[2] = {0, 0};
|
|
uint32_t SD_SPEC = 0 ;
|
|
uint8_t hs[64] = {0} ;
|
|
uint32_t count = 0, *tempbuff = (uint32_t *)hs;
|
|
TransferError = SD_OK;
|
|
TransferEnd = 0;
|
|
StopCondition = 0;
|
|
|
|
SDIO->DCTRL = 0x0;
|
|
|
|
/*!< Get SCR Register */
|
|
errorstatus = FindSCR(RCA, scr);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
|
|
/* Test the Version supported by the card*/
|
|
SD_SPEC = (scr[1] & 0x01000000)||(scr[1] & 0x02000000);
|
|
|
|
if (SD_SPEC != SD_ALLZERO)
|
|
{
|
|
/* Set Block Size for Card */
|
|
SDIO_CmdInitStructure.SDIO_Argument = (uint32_t)64;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_SET_BLOCKLEN;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
errorstatus = CmdResp1Error(SD_CMD_SET_BLOCKLEN);
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
SDIO_DataInitStructure.SDIO_DataTimeOut = SD_DATATIMEOUT;
|
|
SDIO_DataInitStructure.SDIO_DataLength = 64;
|
|
SDIO_DataInitStructure.SDIO_DataBlockSize = SDIO_DataBlockSize_64b ;
|
|
SDIO_DataInitStructure.SDIO_TransferDir = SDIO_TransferDir_ToSDIO;
|
|
SDIO_DataInitStructure.SDIO_TransferMode = SDIO_TransferMode_Block;
|
|
SDIO_DataInitStructure.SDIO_DPSM = SDIO_DPSM_Enable;
|
|
SDIO_DataConfig(&SDIO_DataInitStructure);
|
|
|
|
/*!< Send CMD6 switch mode */
|
|
SDIO_CmdInitStructure.SDIO_Argument = 0x80FFFF01;
|
|
SDIO_CmdInitStructure.SDIO_CmdIndex = SD_CMD_HS_SWITCH;
|
|
SDIO_CmdInitStructure.SDIO_Response = SDIO_Response_Short;
|
|
SDIO_CmdInitStructure.SDIO_Wait = SDIO_Wait_No;
|
|
SDIO_CmdInitStructure.SDIO_CPSM = SDIO_CPSM_Enable;
|
|
SDIO_SendCommand(&SDIO_CmdInitStructure);
|
|
errorstatus = CmdResp1Error(SD_CMD_HS_SWITCH);
|
|
|
|
if (errorstatus != SD_OK)
|
|
{
|
|
return(errorstatus);
|
|
}
|
|
while (!(SDIO->STA &(SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DBCKEND | SDIO_FLAG_STBITERR)))
|
|
{
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_RXFIFOHF) != RESET)
|
|
{
|
|
for (count = 0; count < 8; count++)
|
|
{
|
|
*(tempbuff + count) = SDIO_ReadData();
|
|
}
|
|
tempbuff += 8;
|
|
}
|
|
}
|
|
|
|
if (SDIO_GetFlagStatus(SDIO_FLAG_DTIMEOUT) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DTIMEOUT);
|
|
errorstatus = SD_DATA_TIMEOUT;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_DCRCFAIL) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_DCRCFAIL);
|
|
errorstatus = SD_DATA_CRC_FAIL;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_RXOVERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_RXOVERR);
|
|
errorstatus = SD_RX_OVERRUN;
|
|
return(errorstatus);
|
|
}
|
|
else if (SDIO_GetFlagStatus(SDIO_FLAG_STBITERR) != RESET)
|
|
{
|
|
SDIO_ClearFlag(SDIO_FLAG_STBITERR);
|
|
errorstatus = SD_START_BIT_ERR;
|
|
return(errorstatus);
|
|
}
|
|
count = SD_DATATIMEOUT;
|
|
while ((SDIO_GetFlagStatus(SDIO_FLAG_RXDAVL) != RESET) && (count > 0))
|
|
{
|
|
*tempbuff = SDIO_ReadData();
|
|
tempbuff++;
|
|
count--;
|
|
}
|
|
|
|
/*!< Clear all the static flags */
|
|
SDIO_ClearFlag(SDIO_STATIC_FLAGS);
|
|
|
|
/* Test if the switch mode HS is ok */
|
|
if ((hs[13]& 0x2)==0x2)
|
|
{
|
|
errorstatus=SD_OK;
|
|
}
|
|
else
|
|
{
|
|
errorstatus=SD_UNSUPPORTED_FEATURE ;
|
|
}
|
|
}
|
|
return(errorstatus);
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|