drivers/sdmmc/card.c File Reference

SD/MMC card logic. More...

#include <bitops.h>
#include <byteorder.h>
#include <debug.h>
#include <errno.h>
#include <stdbool.h>
#include <string.h>
#include <util.h>
#include <sdmmc/sdmmc.h>
#include "protocol.h"

Include dependency graph for card.c:

Go to the source code of this file.

Functions
void	sdmmc_decode_sd_cid (struct sdmmc_card *card, const be32_t *raw_cid)
	Decode SD card CID (Card Identification).
int	sdmmc_decode_mmc_cid (struct sdmmc_card *card, const be32_t *raw_cid)
	Decode MMC card CID (Card Identification).
int	sdmmc_decode_sd_csd (struct sdmmc_card *card, const be32_t *raw_csd)
	Decode SD card CSD (Card-Specific Data).
int	sdmmc_decode_mmc_csd (struct sdmmc_card *card, const be32_t *raw_csd)
	Decode MMC card CSD (Card-Specific Data).
void	sdmmc_card_update_timeouts (struct sdmmc_card *card, uint32_t mmc_hz)
	Update data timeout calculations.

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Detailed Description

SD/MMC card logic.

SD/MMC card logic providing utility functions to analyze card information.

• Compiler: IAR EWAVR32 and GNU GCC for AVR32
• Supported devices: All devices
• AppNote:

Author:

Atmel Corporation: http://www.atmel.com
Support and FAQ: http://support.atmel.no/

Definition in file card.c.

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Function Documentation

void sdmmc_card_update_timeouts	(	struct sdmmc_card *	card,
		uint32_t	mmc_hz
	)

Update data timeout calculations.

Parameters:

	card	Card to calculate timeout for
	mmc_hz	The current frequence running on the slot

Definition at line 396 of file card.c.

int sdmmc_decode_mmc_cid	(	struct sdmmc_card *	card,
		const be32_t *	raw_cid
	)

Decode MMC card CID (Card Identification).

Parameters:

	card	Card structure to fill data into
	resp	Response from command requesting CID

Return values:

	0	Success
	<0	decode failure

Definition at line 127 of file card.c.

References sdmmc_cid::application_id, sdmmc_cid::checksum, sdmmc_card::cid, sdmmc_card::csd, dbg_printf, extract_bitfield(), sdmmc_cid::manu_month, sdmmc_cid::manu_year, sdmmc_cid::manufacturer_id, sdmmc_csd::mmc_version, sdmmc_cid::name, sdmmc_cid::revision, and sdmmc_cid::serial.

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int sdmmc_decode_mmc_csd	(	struct sdmmc_card *	card,
		const be32_t *	raw_csd
	)

Decode MMC card CSD (Card-Specific Data).

Parameters:

	card	Card structure to fill data into
	raw_csd	Response from command requesting CSD

Return values:

	0	Success
	<0	decode failure

Definition at line 296 of file card.c.

References sdmmc_csd::can_read_misaligned, sdmmc_csd::can_read_partial, sdmmc_csd::can_write_misaligned, sdmmc_csd::can_write_partial, sdmmc_csd::capacity, sdmmc_csd::command_classes, sdmmc_card::csd, dbg_printf, extract_bitfield(), sdmmc_csd::max_transfer_rate, sdmmc_csd::mmc_version, sdmmc_csd::read_access_time_clks, sdmmc_csd::read_access_time_ns, sdmmc_csd::read_block_length, sdmmc_card_get_slot(), sdmmc_slot_update(), sdmmc_csd::write_block_length, and sdmmc_csd::write_speed_factor.

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void sdmmc_decode_sd_cid	(	struct sdmmc_card *	card,
		const be32_t *	raw_cid
	)

Decode SD card CID (Card Identification).

Parameters:

	card	Card structure to fill data into
	resp	Response from command requesting CID

Definition at line 101 of file card.c.

References sdmmc_cid::application_id, sdmmc_cid::checksum, sdmmc_card::cid, extract_bitfield(), sdmmc_cid::manu_month, sdmmc_cid::manu_year, sdmmc_cid::manufacturer_id, sdmmc_cid::name, sdmmc_cid::revision, and sdmmc_cid::serial.

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int sdmmc_decode_sd_csd	(	struct sdmmc_card *	card,
		const be32_t *	raw_csd
	)

Decode SD card CSD (Card-Specific Data).

Parameters:

	card	Card structure to fill data into
	raw_csd	Response from command requesting CSD

Return values:

	0	Success
	<0	decode failure

Definition at line 207 of file card.c.

References sdmmc_csd::can_read_misaligned, sdmmc_csd::can_read_partial, sdmmc_csd::can_write_misaligned, sdmmc_csd::can_write_partial, sdmmc_csd::capacity, sdmmc_csd::command_classes, sdmmc_card::csd, dbg_printf, extract_bitfield(), sdmmc_csd::max_transfer_rate, sdmmc_csd::read_access_time_clks, sdmmc_csd::read_access_time_ns, sdmmc_csd::read_block_length, sdmmc_card_get_slot(), sdmmc_slot_update(), sdmmc_csd::write_block_length, and sdmmc_csd::write_speed_factor.

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