hal_mmc_spi.c File Reference

MMC over SPI driver code. More...

#include <string.h>
#include "hal.h"

Go to the source code of this file.

Functions
static bool	mmc_is_card_inserted (void *instance)
static bool	mmc_is_write_protected (void *instance)
static bool	mmc_connect (void *instance)
static bool	mmc_disconnect (void *instance)
static bool	mmc_read (void *instance, uint32_t startblk, uint8_t *buffer, uint32_t n)
static bool	mmc_write (void *instance, uint32_t startblk, const uint8_t *buffer, uint32_t n)
static bool	mmc_sync (void *instance)
static bool	mmc_get_info (void *instance, BlockDeviceInfo *bdip)
static uint8_t	mmc_crc7 (uint8_t crc, const uint8_t *buffer, size_t len)
	Calculate the MMC standard CRC-7 based on a lookup table.
static bool	mmc_wait_idle (MMCDriver *mmcp)
	Waits an idle condition.
static bool	mmc_send_hdr (MMCDriver *mmcp, uint8_t cmd, uint32_t arg)
	Sends a command header.
static bool	mmc_recvr1 (MMCDriver *mmcp, uint8_t *r1p)
	Receives a single byte response.
static bool	mmc_recvr3 (MMCDriver *mmcp, uint8_t *r1p)
	Receives a three byte response.
static bool	mmc_send_command_R1 (MMCDriver *mmcp, uint8_t cmd, uint32_t arg, uint8_t *r1p)
	Sends a command an returns a single byte response.
static bool	mmc_send_command_R3 (MMCDriver *mmcp, uint8_t cmd, uint32_t arg, uint8_t *r1p)
	Sends a command which returns a five bytes response (R3).
static bool	mmc_read_CxD (MMCDriver *mmcp, uint8_t cmd, uint32_t cxd[4])
	Reads the CSD.
void	mmcInit (void)
	MMC over SPI driver initialization.
void	mmcObjectInit (MMCDriver *mmcp, uint8_t *buffer)
	Initializes an instance.
msg_t	mmcStart (MMCDriver *mmcp, const MMCConfig *config)
	Configures and activates the MMC peripheral.
void	mmcStop (MMCDriver *mmcp)
	Disables the MMC peripheral.
bool	mmcConnect (MMCDriver *mmcp)
	Performs the initialization procedure on the inserted card.
bool	mmcDisconnect (MMCDriver *mmcp)
	Brings the driver in a state safe for card removal.
bool	mmcStartSequentialRead (MMCDriver *mmcp, uint32_t startblk)
	Starts a sequential read.
bool	mmcSequentialRead (MMCDriver *mmcp, uint8_t *buffer)
	Reads a block within a sequential read operation.
bool	mmcStopSequentialRead (MMCDriver *mmcp)
	Stops a sequential read gracefully.
bool	mmcStartSequentialWrite (MMCDriver *mmcp, uint32_t startblk)
	Starts a sequential write.
bool	mmcSequentialWrite (MMCDriver *mmcp, const uint8_t *buffer)
	Writes a block within a sequential write operation.
bool	mmcStopSequentialWrite (MMCDriver *mmcp)
	Stops a sequential write gracefully.
bool	mmcSync (MMCDriver *mmcp)
	Waits for card idle condition.
bool	mmcGetInfo (MMCDriver *mmcp, BlockDeviceInfo *bdip)
	Returns the media info.
bool	mmcErase (MMCDriver *mmcp, uint32_t startblk, uint32_t endblk)
	Erases blocks.

Variables
static const struct mmc_spi_driver_vmt	mmc_vmt
	Virtual methods table.
static const uint8_t	mmc_crc7_lookup_table [256]
	Lookup table for CRC-7 ( based on polynomial x^7 + x^3 + 1).

Detailed Description

MMC over SPI driver code.

Definition in file hal_mmc_spi.c.