158 lines
4.6 KiB
C
158 lines
4.6 KiB
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#define __IO volatile
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#define SD_TIMEOUT_MS (1000)
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#define SD_BLOCK_SIZE 512
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typedef enum {
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SdSpiStatusOK,
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SdSpiStatusError,
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SdSpiStatusTimeout,
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} SdSpiStatus;
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/**
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* @brief Card Specific Data: CSD Register
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*/
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typedef struct {
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/* Header part */
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uint8_t CSDStruct : 2; /* CSD structure */
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uint8_t Reserved1 : 6; /* Reserved */
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uint8_t TAAC : 8; /* Data read access-time 1 */
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uint8_t NSAC : 8; /* Data read access-time 2 in CLK cycles */
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uint8_t MaxBusClkFrec : 8; /* Max. bus clock frequency */
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uint16_t CardComdClasses : 12; /* Card command classes */
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uint8_t RdBlockLen : 4; /* Max. read data block length */
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uint8_t PartBlockRead : 1; /* Partial blocks for read allowed */
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uint8_t WrBlockMisalign : 1; /* Write block misalignment */
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uint8_t RdBlockMisalign : 1; /* Read block misalignment */
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uint8_t DSRImpl : 1; /* DSR implemented */
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/* v1 or v2 struct */
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union csd_version {
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struct {
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uint8_t Reserved1 : 2; /* Reserved */
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uint16_t DeviceSize : 12; /* Device Size */
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uint8_t MaxRdCurrentVDDMin : 3; /* Max. read current @ VDD min */
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uint8_t MaxRdCurrentVDDMax : 3; /* Max. read current @ VDD max */
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uint8_t MaxWrCurrentVDDMin : 3; /* Max. write current @ VDD min */
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uint8_t MaxWrCurrentVDDMax : 3; /* Max. write current @ VDD max */
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uint8_t DeviceSizeMul : 3; /* Device size multiplier */
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} v1;
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struct {
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uint8_t Reserved1 : 6; /* Reserved */
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uint32_t DeviceSize : 22; /* Device Size */
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uint8_t Reserved2 : 1; /* Reserved */
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} v2;
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} version;
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uint8_t EraseSingleBlockEnable : 1; /* Erase single block enable */
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uint8_t EraseSectorSize : 7; /* Erase group size multiplier */
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uint8_t WrProtectGrSize : 7; /* Write protect group size */
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uint8_t WrProtectGrEnable : 1; /* Write protect group enable */
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uint8_t Reserved2 : 2; /* Reserved */
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uint8_t WrSpeedFact : 3; /* Write speed factor */
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uint8_t MaxWrBlockLen : 4; /* Max. write data block length */
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uint8_t WriteBlockPartial : 1; /* Partial blocks for write allowed */
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uint8_t Reserved3 : 5; /* Reserved */
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uint8_t FileFormatGrouop : 1; /* File format group */
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uint8_t CopyFlag : 1; /* Copy flag (OTP) */
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uint8_t PermWrProtect : 1; /* Permanent write protection */
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uint8_t TempWrProtect : 1; /* Temporary write protection */
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uint8_t FileFormat : 2; /* File Format */
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uint8_t Reserved4 : 2; /* Reserved */
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uint8_t crc : 7; /* Reserved */
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uint8_t Reserved5 : 1; /* always 1*/
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} SD_CSD;
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/**
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* @brief Card Identification Data: CID Register
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*/
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typedef struct {
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uint8_t ManufacturerID; /* ManufacturerID */
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char OEM_AppliID[2]; /* OEM/Application ID */
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char ProdName[5]; /* Product Name */
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uint8_t ProdRev; /* Product Revision */
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uint32_t ProdSN; /* Product Serial Number */
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uint8_t Reserved1; /* Reserved1 */
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uint8_t ManufactYear; /* Manufacturing Year */
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uint8_t ManufactMonth; /* Manufacturing Month */
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uint8_t CID_CRC; /* CID CRC */
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uint8_t Reserved2; /* always 1 */
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} SD_CID;
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/**
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* @brief SD Card information structure
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*/
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typedef struct {
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SD_CSD Csd;
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SD_CID Cid;
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uint64_t CardCapacity; /*!< Card Capacity */
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uint32_t CardBlockSize; /*!< Card Block Size */
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uint32_t LogBlockNbr; /*!< Specifies the Card logical Capacity in blocks */
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uint32_t LogBlockSize; /*!< Specifies logical block size in bytes */
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} SD_CardInfo;
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/**
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* @brief SD card max mount retry count
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*
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* @return uint8_t
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*/
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uint8_t sd_max_mount_retry_count();
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/**
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* @brief Init sd card
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*
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* @param power_reset reset card power
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* @return SdSpiStatus
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*/
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SdSpiStatus sd_init(bool power_reset);
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/**
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* @brief Get card state
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*
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* @return SdSpiStatus
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*/
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SdSpiStatus sd_get_card_state(void);
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/**
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* @brief Get card info
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*
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* @param card_info
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* @return SdSpiStatus
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*/
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SdSpiStatus sd_get_card_info(SD_CardInfo* card_info);
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/**
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* @brief Read blocks
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*
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* @param data
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* @param address
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* @param blocks
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* @param timeout_ms
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* @return SdSpiStatus
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*/
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SdSpiStatus sd_read_blocks(uint32_t* data, uint32_t address, uint32_t blocks, uint32_t timeout_ms);
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/**
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* @brief Write blocks
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*
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* @param data
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* @param address
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* @param blocks
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* @param timeout_ms
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* @return SdSpiStatus
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*/
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SdSpiStatus
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sd_write_blocks(uint32_t* data, uint32_t address, uint32_t blocks, uint32_t timeout_ms);
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/**
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* @brief Get card CSD register
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*
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* @param Cid
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* @return SdSpiStatus
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*/
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SdSpiStatus sd_get_cid(SD_CID* cid); |