drivers/sdmmc/request.c File Reference

SD/MMC request utility functions. More...

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

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Functions
void	sdmmc_req_prep_transfer (struct sdmmc_slot *slot, struct sdmmc_request *req, uint32_t lba, uint32_t nr_blocks, bool write)
	Prepare SD/MMC request for data transfer.

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Detailed Description

SD/MMC request utility functions.

• 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 request.c.

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Function Documentation

void sdmmc_req_prep_transfer	(	struct sdmmc_slot *	slot,
		struct sdmmc_request *	req,
		uint32_t	lba,
		uint32_t	nr_blocks,
		bool	write
	)

Prepare SD/MMC request for data transfer.

Parameters:

	slot	Slot this request is intended for
	req	Request
	lba	Logical Block Address
	nr_blocks	Number of block to transfer
	write	Set to true for write request and to false for read request

Definition at line 51 of file request.c.

References sdmmc_card::block_size, sdmmc_request::block_size, sdmmc_request::blocks, sdmmc_slot::card, sdmmc_request::flags, sdmmc_card_block2addr(), sdmmc_req_prep_cmd(), SDMMC_REQ_STOP, SDMMC_REQ_WRITE, and set_bit().

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