hal_sdc.c File Reference

SDC Driver code. More...

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

Go to the source code of this file.

Enumerations
enum	mmc_switch_t { MMC_SWITCH_COMMAND_SET = 0 , MMC_SWITCH_SET_BITS = 1 , MMC_SWITCH_CLEAR_BITS = 2 , MMC_SWITCH_WRITE_BYTE = 3 }
	MMC switch mode. More...
enum	sd_switch_t { SD_SWITCH_CHECK = 0 , SD_SWITCH_SET = 1 }
	SDC switch mode. More...
enum	sd_switch_function_t { SD_SWITCH_FUNCTION_SPEED = 0 , SD_SWITCH_FUNCTION_CMD_SYSTEM = 1 , SD_SWITCH_FUNCTION_DRIVER_STRENGTH = 2 , SD_SWITCH_FUNCTION_CURRENT_LIMIT = 3 }
	SDC switch function. More...

Functions
static bool	mode_detect (SDCDriver *sdcp)
	Detects card mode.
static bool	mmc_init (SDCDriver *sdcp)
	Init procedure for MMC.
static bool	sdc_init (SDCDriver *sdcp)
	Init procedure for SDC.
static uint32_t	mmc_cmd6_construct (mmc_switch_t access, uint32_t idx, uint32_t value, uint32_t cmd_set)
	Constructs CMD6 argument for MMC.
static uint32_t	sdc_cmd6_construct (sd_switch_t mode, sd_switch_function_t function, uint32_t value)
	Constructs CMD6 argument for SDC.
static uint16_t	sdc_cmd6_extract_info (sd_switch_function_t function, const uint8_t *buf)
	Extracts information from CMD6 answer.
static bool	sdc_cmd6_check_status (sd_switch_function_t function, const uint8_t *buf)
	Checks status after switching using CMD6.
static bool	sdc_detect_bus_clk (SDCDriver *sdcp, sdcbusclk_t *clk)
	Reads supported bus clock and switch SDC to appropriate mode.
static bool	mmc_detect_bus_clk (SDCDriver *sdcp, sdcbusclk_t *clk)
	Reads supported bus clock and switch MMC to appropriate mode.
static bool	detect_bus_clk (SDCDriver *sdcp, sdcbusclk_t *clk)
	Reads supported bus clock and switch card to appropriate mode.
static bool	sdc_set_bus_width (SDCDriver *sdcp)
	Sets bus width for SDC.
static bool	mmc_set_bus_width (SDCDriver *sdcp)
	Sets bus width for MMC.
static bool	_sdc_wait_for_transfer_state_internal (SDCDriver *sdcp, bool crc_check)
	Wait for the card to complete pending operations.
bool	_sdc_wait_for_transfer_state (SDCDriver *sdcp)
	Wait for the card to complete pending operations with CRC check.
bool	_sdc_wait_for_transfer_state_nocrc (SDCDriver *sdcp)
	Wait for the card to complete pending operations without CRC check.
void	sdcInit (void)
	SDC Driver initialization.
void	sdcObjectInit (SDCDriver *sdcp)
	Initializes the standard part of a SDCDriver structure.
msg_t	sdcStart (SDCDriver *sdcp, const SDCConfig *config)
	Configures and activates the SDC peripheral.
void	sdcStop (SDCDriver *sdcp)
	Deactivates the SDC peripheral.
bool	sdcConnect (SDCDriver *sdcp)
	Performs the initialization procedure on the inserted card.
bool	sdcDisconnect (SDCDriver *sdcp)
	Brings the driver in a state safe for card removal.
bool	sdcRead (SDCDriver *sdcp, uint32_t startblk, uint8_t *buf, uint32_t n)
	Reads one or more blocks.
bool	sdcWrite (SDCDriver *sdcp, uint32_t startblk, const uint8_t *buf, uint32_t n)
	Writes one or more blocks.
sdcflags_t	sdcGetAndClearErrors (SDCDriver *sdcp)
	Returns the errors mask associated to the previous operation.
bool	sdcSync (SDCDriver *sdcp)
	Waits for card idle condition.
bool	sdcGetInfo (SDCDriver *sdcp, BlockDeviceInfo *bdip)
	Returns the media info.
bool	sdcErase (SDCDriver *sdcp, uint32_t startblk, uint32_t endblk)
	Erases the supplied blocks.

Variables
static const struct SDCDriverVMT	sdc_vmt
	Virtual methods table.

Detailed Description

SDC Driver code.

Definition in file hal_sdc.c.