hpm_sdmmc_common.c File Reference

#include "hpm_sdmmc_common.h"
#include "hpm_sdmmc_card.h"
#include <string.h>

Functions
hpm_stat_t	sdmmc_go_idle_state (sdmmc_host_t *host, uint32_t argument)
	Switch device to Idle state. More...
hpm_stat_t	sdmmc_go_inactive_state (sdmmc_host_t *host, uint16_t relative_addr)
	Switch device to Inactive state. More...
hpm_stat_t	sdmmc_select_card (sdmmc_host_t *host, uint16_t relative_addr, bool is_selected)
	Select/De-select the device. More...
hpm_stat_t	sdmmc_send_application_command (sdmmc_host_t *host, uint16_t relative_addr)
	Send Application Command. More...
hpm_stat_t	sdmmc_set_block_count (sdmmc_host_t *host, uint32_t block_count)
	Set block count. More...
hpm_stat_t	sdmmc_set_block_size (sdmmc_host_t *host, uint32_t block_size)
	Set Block size. More...
hpm_stat_t	sdmmc_enable_auto_tuning (sdmmc_host_t *host)
	Enable Auto Tuning mode. More...
uint32_t	extract_csd_field (const uint32_t *raw_csd, uint8_t end_offset, uint8_t start_offset)
	Extract Fields from raw CSD data. More...

Function Documentation

extract_csd_field()

uint32_t extract_csd_field	(	const uint32_t *	raw_csd,
		uint8_t	end_offset,
		uint8_t	start_offset
	)

Extract Fields from raw CSD data.

Parameters

[in]	raw_csd	Raw CSD data array
[in]	end_offset	end offset of the specific field (in terms of bit)
[in]	start_offset	start offset of the specific field (in terms of bit)

Returns

Extracted CSD field

sdmmc_enable_auto_tuning()

hpm_stat_t sdmmc_enable_auto_tuning

(

sdmmc_host_t *

host

)

Enable Auto Tuning mode.

Parameters

[in/out]

host SD/MMC Host Context

Returns

status_success if operation is successful

sdmmc_go_idle_state()

hpm_stat_t sdmmc_go_idle_state	(	sdmmc_host_t *	host,
		uint32_t	argument
	)

Switch device to Idle state.

Parameters

	[in/out]	host SD/MMC Host Context
[in]	argument	Argument for CMD0

Returns

status_success if operation is successful

sdmmc_go_inactive_state()

hpm_stat_t sdmmc_go_inactive_state	(	sdmmc_host_t *	host,
		uint16_t	relative_addr
	)

Switch device to Inactive state.

Parameters

	[in/out]	host SD/MMC Host Context
[in]	relative_addr	device relative address

Returns

status_succes if operation is successful

sdmmc_select_card()

hpm_stat_t sdmmc_select_card	(	sdmmc_host_t *	host,
		uint16_t	relative_addr,
		bool	is_selected
	)

Select/De-select the device.

Parameters

	[in/out]	host SD/MMC Host Context
[in]	relative_addr	device relative address
[in]	is_selected	true: select, false: de-select

Returns

status_success if operation is successful

sdmmc_send_application_command()

hpm_stat_t sdmmc_send_application_command	(	sdmmc_host_t *	host,
		uint16_t	relative_addr
	)

Send Application Command.

Parameters

	[in/out]	host SD/MMC Host Context
[in]	relative_addr	device related address

Returns

status_success if operation is successful

sdmmc_set_block_count()

hpm_stat_t sdmmc_set_block_count	(	sdmmc_host_t *	host,
		uint32_t	block_count
	)

Set block count.

Parameters

	[in/out]	host SD/MMC Host Context
[in]	block_count	SD/MMC Block count

Returns

status_success if operation is successful

sdmmc_set_block_size()

hpm_stat_t sdmmc_set_block_size	(	sdmmc_host_t *	host,
		uint32_t	block_size
	)

Set Block size.

Parameters

	[in/out]	host SD/MMC Host Context
[in]	block_size	SD/MMC Block size

Returns

status_success if operation is successful