Generic MMC driver. More...

Collaboration diagram for MMC over SPI Driver:

Detailed Description

Generic MMC driver.

This module implements a portable MMC/SD driver that uses a SPI driver as physical layer. Hot plugging and removal are supported through kernel events.

Precondition: In order to use the MMC_SPI driver the HAL_USE_MMC_SPI and HAL_USE_SPI options must be enabled in halconf.h.

Driver State Machine

This driver implements a state machine internally, see the Abstract I/O Block Device module documentation for details.

Driver Operations

This driver allows to read or write single or multiple 512 bytes blocks on a SD Card.

Macros
#define	_mmc_driver_methods _mmcsd_block_device_methods
	`MMCDriver` specific methods. More...

MMC_SPI configuration options
#define	MMC_NICE_WAITING TRUE
	Delays insertions. More...

Macro Functions
#define	mmcIsCardInserted(mmcp) mmc_lld_is_card_inserted(mmcp)
	Returns the card insertion status. More...

#define	mmcIsWriteProtected(mmcp) mmc_lld_is_write_protected(mmcp)
	Returns the write protect status. More...

Data Structures
struct	MMCConfig
	MMC/SD over SPI driver configuration structure. More...

struct	MMCDriverVMT
	`MMCDriver` virtual methods table. More...

struct	MMCDriver
	Structure representing a MMC/SD over SPI driver. More...

Functions
static uint8_t	crc7 (uint8_t crc, const uint8_t *buffer, size_t len)
	Calculate the MMC standard CRC-7 based on a lookup table. More...

static void	wait (MMCDriver *mmcp)
	Waits an idle condition. More...

static void	send_hdr (MMCDriver *mmcp, uint8_t cmd, uint32_t arg)
	Sends a command header. More...

static uint8_t	recvr1 (MMCDriver *mmcp)
	Receives a single byte response. More...

static uint8_t	recvr3 (MMCDriver mmcp, uint8_t buffer)
	Receives a three byte response. More...

static uint8_t	send_command_R1 (MMCDriver *mmcp, uint8_t cmd, uint32_t arg)
	Sends a command an returns a single byte response. More...

static uint8_t	send_command_R3 (MMCDriver mmcp, uint8_t cmd, uint32_t arg, uint8_t response)
	Sends a command which returns a five bytes response (R3). More...

static bool	read_CxD (MMCDriver *mmcp, uint8_t cmd, uint32_t cxd[4])
	Reads the CSD. More...

static void	sync (MMCDriver *mmcp)
	Waits that the card reaches an idle state. More...

void	mmcInit (void)
	MMC over SPI driver initialization. More...

void	mmcObjectInit (MMCDriver *mmcp)
	Initializes an instance. More...

void	mmcStart (MMCDriver mmcp, const MMCConfig config)
	Configures and activates the MMC peripheral. More...

void	mmcStop (MMCDriver *mmcp)
	Disables the MMC peripheral. More...

bool	mmcConnect (MMCDriver *mmcp)
	Performs the initialization procedure on the inserted card. More...

bool	mmcDisconnect (MMCDriver *mmcp)
	Brings the driver in a state safe for card removal. More...

bool	mmcStartSequentialRead (MMCDriver *mmcp, uint32_t startblk)
	Starts a sequential read. More...

bool	mmcSequentialRead (MMCDriver mmcp, uint8_t buffer)
	Reads a block within a sequential read operation. More...

bool	mmcStopSequentialRead (MMCDriver *mmcp)
	Stops a sequential read gracefully. More...

bool	mmcStartSequentialWrite (MMCDriver *mmcp, uint32_t startblk)
	Starts a sequential write. More...

bool	mmcSequentialWrite (MMCDriver mmcp, const uint8_t buffer)
	Writes a block within a sequential write operation. More...

bool	mmcStopSequentialWrite (MMCDriver *mmcp)
	Stops a sequential write gracefully. More...

bool	mmcSync (MMCDriver *mmcp)
	Waits for card idle condition. More...

bool	mmcGetInfo (MMCDriver mmcp, BlockDeviceInfo bdip)
	Returns the media info. More...

bool	mmcErase (MMCDriver *mmcp, uint32_t startblk, uint32_t endblk)
	Erases blocks. More...

Variables
static const struct MMCDriverVMT	mmc_vmt
	Virtual methods table. More...

static const uint8_t	crc7_lookup_table [256]
	Lookup table for CRC-7 ( based on polynomial x^7 + x^3 + 1). More...

Macro Definition Documentation

#define MMC_NICE_WAITING TRUE

Delays insertions.

If enabled this options inserts delays into the MMC waiting routines releasing some extra CPU time for the threads with lower priority, this may slow down the driver a bit however. This option is recommended also if the SPI driver does not use a DMA channel and heavily loads the CPU.

Definition at line 56 of file hal_mmc_spi.h.

#define _mmc_driver_methods _mmcsd_block_device_methods

MMCDriver specific methods.

Definition at line 93 of file hal_mmc_spi.h.

#define mmcIsCardInserted ( mmcp ) mmc_lld_is_card_inserted(mmcp)

Returns the card insertion status.

Note: This macro wraps a low level function named sdc_lld_is_card_inserted(), this function must be provided by the application because it is not part of the SDC driver.

Parameters

[in] mmcp pointer to the MMCDriver object

Returns: The card state.

Return values

false	card not inserted.
true	card inserted.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 148 of file hal_mmc_spi.h.

#define mmcIsWriteProtected ( mmcp ) mmc_lld_is_write_protected(mmcp)

Returns the write protect status.

Parameters

[in] mmcp pointer to the MMCDriver object

Returns: The card state.

Return values

false	card not inserted.
true	card inserted.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 160 of file hal_mmc_spi.h.

Function Documentation

static uint8_t crc7	(	uint8_t	crc,
		const uint8_t *	buffer,
		size_t	len
	)

static

Calculate the MMC standard CRC-7 based on a lookup table.

Parameters

[in]	crc	start value for CRC
[in]	buffer	pointer to data buffer
[in]	len	length of data

Returns: Calculated CRC

Definition at line 149 of file hal_mmc_spi.c.

References crc7_lookup_table.

Referenced by send_hdr().

static void wait ( MMCDriver * mmcp )

static

Waits an idle condition.

Parameters

[in] mmcp pointer to the MMCDriver object

Function Class:Not an API, this function is for internal use only.

Definition at line 165 of file hal_mmc_spi.c.

References MMCDriver::config, osalThreadSleepMilliseconds, MMCConfig::spip, and spiReceive().

Referenced by mmcSequentialWrite(), and send_hdr().

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static void send_hdr	(	MMCDriver *	mmcp,
		uint8_t	cmd,
		uint32_t	arg
	)

static

Sends a command header.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[in]	cmd	the command id
[in]	arg	the command argument

Function Class:Not an API, this function is for internal use only.

Definition at line 197 of file hal_mmc_spi.c.

References MMCDriver::config, crc7(), MMCConfig::spip, spiSend(), and wait().

Referenced by mmcStartSequentialRead(), mmcStartSequentialWrite(), read_CxD(), send_command_R1(), and send_command_R3().

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static uint8_t recvr1 ( MMCDriver * mmcp )

static

Receives a single byte response.

Parameters

[in] mmcp pointer to the MMCDriver object

Returns: The response as an uint8_t value.

Return values

0xFF	timed out.

Function Class:Not an API, this function is for internal use only.

Definition at line 223 of file hal_mmc_spi.c.

References MMCDriver::config, MMCConfig::spip, and spiReceive().

Referenced by mmcStartSequentialRead(), mmcStartSequentialWrite(), mmcStopSequentialRead(), read_CxD(), recvr3(), and send_command_R1().

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static uint8_t recvr3	(	MMCDriver *	mmcp,
		uint8_t *	buffer
	)

static

Receives a three byte response.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[out]	buffer	pointer to four bytes wide buffer

Returns: First response byte as an uint8_t value.

Return values

0xFF	timed out.

Function Class:Not an API, this function is for internal use only.

Definition at line 246 of file hal_mmc_spi.c.

References MMCDriver::config, recvr1(), MMCConfig::spip, and spiReceive().

Referenced by send_command_R3().

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static uint8_t send_command_R1	(	MMCDriver *	mmcp,
		uint8_t	cmd,
		uint32_t	arg
	)

static

Sends a command an returns a single byte response.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[in]	cmd	the command id
[in]	arg	the command argument

Returns: The response as an uint8_t value.

Return values

0xFF	timed out.

Function Class:Not an API, this function is for internal use only.

Definition at line 266 of file hal_mmc_spi.c.

References MMCDriver::config, recvr1(), send_hdr(), MMCConfig::spip, spiSelect(), and spiUnselect().

Referenced by mmcConnect(), and mmcErase().

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static uint8_t send_command_R3	(	MMCDriver *	mmcp,
		uint8_t	cmd,
		uint32_t	arg,
		uint8_t *	response
	)

static

Sends a command which returns a five bytes response (R3).

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[in]	cmd	the command id
[in]	arg	the command argument
[out]	response	pointer to four bytes wide uint8_t buffer

Returns: The first byte of the response (R1) as an uint8_t value.

Return values

0xFF	timed out.

Function Class:Not an API, this function is for internal use only.

Definition at line 289 of file hal_mmc_spi.c.

References MMCDriver::config, recvr3(), send_hdr(), MMCConfig::spip, spiSelect(), and spiUnselect().

Referenced by mmcConnect().

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static bool read_CxD	(	MMCDriver *	mmcp,
		uint8_t	cmd,
		uint32_t	cxd[4]
	)

static

Reads the CSD.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[out]	cmd	command
[out]	cxd	pointer to the CSD/CID buffer

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Not an API, this function is for internal use only.

Definition at line 313 of file hal_mmc_spi.c.

References MMCDriver::config, recvr1(), send_hdr(), spiIgnore(), MMCConfig::spip, spiReceive(), spiSelect(), and spiUnselect().

Referenced by mmcConnect().

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static void sync ( MMCDriver * mmcp )

static

Waits that the card reaches an idle state.

Parameters

[in] mmcp pointer to the MMCDriver object

Function Class:Not an API, this function is for internal use only.

Definition at line 355 of file hal_mmc_spi.c.

References MMCDriver::config, osalThreadSleepMilliseconds, MMCConfig::spip, spiReceive(), spiSelect(), and spiUnselect().

Referenced by mmcDisconnect(), and mmcSync().

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void mmcInit ( void )

MMC over SPI driver initialization.

Note: This function is implicitly invoked by halInit(), there is no need to explicitly initialize the driver.

Function Class:Initializer, this function just initializes an object and can be invoked before the kernel is initialized.

Definition at line 383 of file hal_mmc_spi.c.

Referenced by halInit().

void mmcObjectInit ( MMCDriver * mmcp )

Initializes an instance.

Parameters

[out] mmcp pointer to the MMCDriver object

Function Class:Initializer, this function just initializes an object and can be invoked before the kernel is initialized.

Definition at line 394 of file hal_mmc_spi.c.

References BLK_STOP, MMCDriver::config, mmc_vmt, and MMCDriver::vmt.

void mmcStart	(	MMCDriver *	mmcp,
		const MMCConfig *	config
	)

Configures and activates the MMC peripheral.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[in]	config	pointer to the `MMCConfig` object.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 410 of file hal_mmc_spi.c.

References BLK_ACTIVE, BLK_STOP, MMCDriver::config, osalDbgAssert, and osalDbgCheck.

void mmcStop ( MMCDriver * mmcp )

Disables the MMC peripheral.

Parameters

[in] mmcp pointer to the MMCDriver object

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 427 of file hal_mmc_spi.c.

References BLK_ACTIVE, BLK_STOP, MMCDriver::config, osalDbgAssert, osalDbgCheck, MMCConfig::spip, and spiStop().

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bool mmcConnect ( MMCDriver * mmcp )

Performs the initialization procedure on the inserted card.

This function should be invoked when a card is inserted and brings the driver in the MMC_READY state where it is possible to perform read and write operations.

Note: It is possible to invoke this function from the insertion event handler.

Parameters

[in] mmcp pointer to the MMCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded and the driver is now in the `MMC_READY` state.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 455 of file hal_mmc_spi.c.

References _mmcsd_get_capacity(), BLK_ACTIVE, BLK_CONNECTING, BLK_READY, MMCDriver::config, MMCConfig::hscfg, MMCConfig::lscfg, MMCSD_BLOCK_SIZE, MMCSD_CMD8_PATTERN, osalDbgAssert, osalDbgCheck, osalThreadSleepMilliseconds, read_CxD(), send_command_R1(), send_command_R3(), spiIgnore(), MMCConfig::spip, spiStart(), and spiStop().

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bool mmcDisconnect ( MMCDriver * mmcp )

Brings the driver in a state safe for card removal.

Parameters

[in] mmcp pointer to the MMCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded and the driver is now in the `MMC_INSERTED` state.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 577 of file hal_mmc_spi.c.

References BLK_ACTIVE, BLK_DISCONNECTING, BLK_READY, MMCDriver::config, MMCConfig::hscfg, osalDbgAssert, osalDbgCheck, osalSysLock(), osalSysUnlock(), MMCConfig::spip, spiStart(), spiStop(), and sync().

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bool mmcStartSequentialRead	(	MMCDriver *	mmcp,
		uint32_t	startblk
	)

Starts a sequential read.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[in]	startblk	first block to read

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 612 of file hal_mmc_spi.c.

References BLK_READING, BLK_READY, MMCDriver::config, MMCConfig::hscfg, MMCSD_BLOCK_SIZE, osalDbgAssert, osalDbgCheck, recvr1(), send_hdr(), MMCConfig::spip, spiSelect(), spiStart(), and spiStop().

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bool mmcSequentialRead	(	MMCDriver *	mmcp,
		uint8_t *	buffer
	)

Reads a block within a sequential read operation.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[out]	buffer	pointer to the read buffer

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 652 of file hal_mmc_spi.c.

References BLK_READING, BLK_READY, MMCDriver::config, MMCSD_BLOCK_SIZE, osalDbgCheck, spiIgnore(), MMCConfig::spip, spiReceive(), spiStop(), and spiUnselect().

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bool mmcStopSequentialRead ( MMCDriver * mmcp )

Stops a sequential read gracefully.

Parameters

[in] mmcp pointer to the MMCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 688 of file hal_mmc_spi.c.

References BLK_READING, BLK_READY, MMCDriver::config, osalDbgCheck, recvr1(), MMCConfig::spip, spiSend(), and spiUnselect().

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bool mmcStartSequentialWrite	(	MMCDriver *	mmcp,
		uint32_t	startblk
	)

Starts a sequential write.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[in]	startblk	first block to write

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 722 of file hal_mmc_spi.c.

References BLK_READY, BLK_WRITING, MMCDriver::config, MMCConfig::hscfg, MMCSD_BLOCK_SIZE, osalDbgAssert, osalDbgCheck, recvr1(), send_hdr(), MMCConfig::spip, spiSelect(), spiStart(), and spiStop().

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bool mmcSequentialWrite	(	MMCDriver *	mmcp,
		const uint8_t *	buffer
	)

Writes a block within a sequential write operation.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[out]	buffer	pointer to the write buffer

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 760 of file hal_mmc_spi.c.

References BLK_READY, BLK_WRITING, MMCDriver::config, MMCSD_BLOCK_SIZE, osalDbgCheck, spiIgnore(), MMCConfig::spip, spiReceive(), spiSend(), spiStop(), spiUnselect(), and wait().

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bool mmcStopSequentialWrite ( MMCDriver * mmcp )

Stops a sequential write gracefully.

Parameters

[in] mmcp pointer to the MMCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 797 of file hal_mmc_spi.c.

References BLK_READY, BLK_WRITING, MMCDriver::config, osalDbgCheck, MMCConfig::spip, spiSend(), and spiUnselect().

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bool mmcSync ( MMCDriver * mmcp )

Waits for card idle condition.

Parameters

[in] mmcp pointer to the MMCDriver object

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 825 of file hal_mmc_spi.c.

References BLK_READY, BLK_SYNCING, MMCDriver::config, MMCConfig::hscfg, osalDbgCheck, MMCConfig::spip, spiStart(), and sync().

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bool mmcGetInfo	(	MMCDriver *	mmcp,
		BlockDeviceInfo *	bdip
	)

Returns the media info.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[out]	bdip	pointer to a `BlockDeviceInfo` structure

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 856 of file hal_mmc_spi.c.

References BlockDeviceInfo::blk_num, BLK_READY, BlockDeviceInfo::blk_size, MMCSD_BLOCK_SIZE, and osalDbgCheck.

bool mmcErase	(	MMCDriver *	mmcp,
		uint32_t	startblk,
		uint32_t	endblk
	)

Erases blocks.

Parameters

[in]	mmcp	pointer to the `MMCDriver` object
[in]	startblk	starting block number
[in]	endblk	ending block number

Returns: The operation status.

Return values

HAL_SUCCESS	the operation succeeded.
HAL_FAILED	the operation failed.

Function Class:Normal API, this function can be invoked by regular system threads but not from within a lock zone.

Definition at line 883 of file hal_mmc_spi.c.

References BLK_READY, BLK_WRITING, MMCDriver::config, MMCSD_BLOCK_SIZE, osalDbgCheck, send_command_R1(), MMCConfig::spip, and spiStop().

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Variable Documentation

const struct MMCDriverVMT mmc_vmt

static

Initial value:

= {
  (size_t)0,
  (bool (*)(void *))mmc_lld_is_card_inserted,
  (bool (*)(void *))mmc_lld_is_write_protected,
  (bool (*)(void *))mmcConnect,
  (bool (*)(void *))mmcDisconnect,
  mmc_read,
  mmc_write,
  (bool (*)(void *))mmcSync,
  (bool (*)(void *, BlockDeviceInfo *))mmcGetInfo
}

Virtual methods table.

Definition at line 55 of file hal_mmc_spi.c.

Referenced by mmcObjectInit().

const uint8_t crc7_lookup_table[256]

static

Initial value:

= {
  0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f, 0x48, 0x41, 0x5a, 0x53,
  0x6c, 0x65, 0x7e, 0x77, 0x19, 0x10, 0x0b, 0x02, 0x3d, 0x34, 0x2f, 0x26,
  0x51, 0x58, 0x43, 0x4a, 0x75, 0x7c, 0x67, 0x6e, 0x32, 0x3b, 0x20, 0x29,
  0x16, 0x1f, 0x04, 0x0d, 0x7a, 0x73, 0x68, 0x61, 0x5e, 0x57, 0x4c, 0x45,
  0x2b, 0x22, 0x39, 0x30, 0x0f, 0x06, 0x1d, 0x14, 0x63, 0x6a, 0x71, 0x78,
  0x47, 0x4e, 0x55, 0x5c, 0x64, 0x6d, 0x76, 0x7f, 0x40, 0x49, 0x52, 0x5b,
  0x2c, 0x25, 0x3e, 0x37, 0x08, 0x01, 0x1a, 0x13, 0x7d, 0x74, 0x6f, 0x66,
  0x59, 0x50, 0x4b, 0x42, 0x35, 0x3c, 0x27, 0x2e, 0x11, 0x18, 0x03, 0x0a,
  0x56, 0x5f, 0x44, 0x4d, 0x72, 0x7b, 0x60, 0x69, 0x1e, 0x17, 0x0c, 0x05,
  0x3a, 0x33, 0x28, 0x21, 0x4f, 0x46, 0x5d, 0x54, 0x6b, 0x62, 0x79, 0x70,
  0x07, 0x0e, 0x15, 0x1c, 0x23, 0x2a, 0x31, 0x38, 0x41, 0x48, 0x53, 0x5a,
  0x65, 0x6c, 0x77, 0x7e, 0x09, 0x00, 0x1b, 0x12, 0x2d, 0x24, 0x3f, 0x36,
  0x58, 0x51, 0x4a, 0x43, 0x7c, 0x75, 0x6e, 0x67, 0x10, 0x19, 0x02, 0x0b,
  0x34, 0x3d, 0x26, 0x2f, 0x73, 0x7a, 0x61, 0x68, 0x57, 0x5e, 0x45, 0x4c,
  0x3b, 0x32, 0x29, 0x20, 0x1f, 0x16, 0x0d, 0x04, 0x6a, 0x63, 0x78, 0x71,
  0x4e, 0x47, 0x5c, 0x55, 0x22, 0x2b, 0x30, 0x39, 0x06, 0x0f, 0x14, 0x1d,
  0x25, 0x2c, 0x37, 0x3e, 0x01, 0x08, 0x13, 0x1a, 0x6d, 0x64, 0x7f, 0x76,
  0x49, 0x40, 0x5b, 0x52, 0x3c, 0x35, 0x2e, 0x27, 0x18, 0x11, 0x0a, 0x03,
  0x74, 0x7d, 0x66, 0x6f, 0x50, 0x59, 0x42, 0x4b, 0x17, 0x1e, 0x05, 0x0c,
  0x33, 0x3a, 0x21, 0x28, 0x5f, 0x56, 0x4d, 0x44, 0x7b, 0x72, 0x69, 0x60,
  0x0e, 0x07, 0x1c, 0x15, 0x2a, 0x23, 0x38, 0x31, 0x46, 0x4f, 0x54, 0x5d,
  0x62, 0x6b, 0x70, 0x79
}

Lookup table for CRC-7 ( based on polynomial x^7 + x^3 + 1).

Definition at line 70 of file hal_mmc_spi.c.

Referenced by crc7().

Detailed Description

Driver State Machine

Driver Operations

Macros

MMC_SPI configuration options

Macro Functions

Data Structures

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation