SD/MMC Memory

SD/MMC memory APIs required by CTRL_ACCESS module (Memory Control Access).

For usual application which use the SD/MMC card in memory mode through a file system or a USB device MSC, only a call of sd_mmc_init() function is required in the startup.

Modules
	Implementation of SD/MMC Memory

Control Interface
Ctrl_status	sd_mmc_test_unit_ready (uint8_t slot)
	Tests the memory state and initializes the memory if required. More...
Ctrl_status	sd_mmc_test_unit_ready_0 (void)
	Instance Declaration for sd_mmc_test_unit_ready Slot O. More...
Ctrl_status	sd_mmc_test_unit_ready_1 (void)
	Instance Declaration for sd_mmc_test_unit_ready Slot 1. More...
Ctrl_status	sd_mmc_read_capacity (uint8_t slot, uint32_t *u32_nb_sector)
	Returns the address of the last valid sector in the memory. More...
Ctrl_status	sd_mmc_read_capacity_0 (uint32_t *u32_nb_sector)
	Instance Declaration for sd_mmc_read_capacity Slot O. More...
Ctrl_status	sd_mmc_read_capacity_1 (uint32_t *u32_nb_sector)
	Instance Declaration for sd_mmc_read_capacity Slot 1. More...
bool	sd_mmc_unload (uint8_t slot, bool unload)
	Unload/Load the SD/MMC card selected. More...
bool	sd_mmc_unload_0 (bool unload)
	Instance Declaration for sd_mmc_unload Slot O. More...
bool	sd_mmc_unload_1 (bool unload)
	Instance Declaration for sd_mmc_unload Slot 1. More...
bool	sd_mmc_wr_protect (uint8_t slot)
	Returns the write-protection state of the memory. More...
bool	sd_mmc_wr_protect_0 (void)
	Instance Declaration for sd_mmc_wr_protect Slot O. More...
bool	sd_mmc_wr_protect_1 (void)
	Instance Declaration for sd_mmc_wr_protect Slot 1. More...
bool	sd_mmc_removal (uint8_t slot)
	Tells whether the memory is removable. More...
bool	sd_mmc_removal_0 (void)
	Instance Declaration for sd_mmc_removal Slot O. More...
bool	sd_mmc_removal_1 (void)
	Instance Declaration for sd_mmc_removal Slot 1. More...

MEM <-> RAM Interface
Ctrl_status	sd_mmc_mem_2_ram (uint8_t slot, uint32_t addr, void *ram)
	Copies 1 data sector from the memory to RAM. More...
Ctrl_status	sd_mmc_mem_2_ram_0 (uint32_t addr, void *ram)
	Instance Declaration for sd_mmc_mem_2_ram Slot O. More...
Ctrl_status	sd_mmc_mem_2_ram_1 (uint32_t addr, void *ram)
	Instance Declaration for sd_mmc_mem_2_ram Slot 1. More...
Ctrl_status	sd_mmc_ram_2_mem (uint8_t slot, uint32_t addr, const void *ram)
	Copies 1 data sector from RAM to the memory. More...
Ctrl_status	sd_mmc_ram_2_mem_0 (uint32_t addr, const void *ram)
	Instance Declaration for sd_mmc_mem_2_ram Slot O. More...
Ctrl_status	sd_mmc_ram_2_mem_1 (uint32_t addr, const void *ram)
	Instance Declaration for sd_mmc_mem_2_ram Slot 1. More...

Ctrl_status sd_mmc_mem_2_ram	(	uint8_t	slot,
		uint32_t	addr,
		void *	ram
	)

Copies 1 data sector from the memory to RAM.

Parameters

slot	SD/MMC Slot Card Selected.
addr	Address of first memory sector to read.
ram	Pointer to RAM buffer to write.

Returns

Status.

References CTRL_FAIL, CTRL_GOOD, CTRL_NO_PRESENT, SD_MMC_ERR_NO_CARD, sd_mmc_init_read_blocks(), SD_MMC_OK, sd_mmc_start_read_blocks(), and sd_mmc_wait_end_of_read_blocks().

Referenced by sd_mmc_mem_2_ram_0(), and sd_mmc_mem_2_ram_1().

Ctrl_status sd_mmc_mem_2_ram_0	(	uint32_t	addr,
		void *	ram
	)

Instance Declaration for sd_mmc_mem_2_ram Slot O.

References sd_mmc_mem_2_ram().

Ctrl_status sd_mmc_mem_2_ram_1	(	uint32_t	addr,
		void *	ram
	)

Instance Declaration for sd_mmc_mem_2_ram Slot 1.

References sd_mmc_mem_2_ram().

Ctrl_status sd_mmc_ram_2_mem	(	uint8_t	slot,
		uint32_t	addr,
		const void *	ram
	)

Copies 1 data sector from RAM to the memory.

Parameters

slot	SD/MMC Slot Card Selected.
addr	Address of first memory sector to write.
ram	Pointer to RAM buffer to read.

Returns

Status.

References CTRL_FAIL, CTRL_GOOD, CTRL_NO_PRESENT, SD_MMC_ERR_NO_CARD, sd_mmc_init_write_blocks(), SD_MMC_OK, sd_mmc_start_write_blocks(), and sd_mmc_wait_end_of_write_blocks().

Referenced by sd_mmc_ram_2_mem_0(), and sd_mmc_ram_2_mem_1().

Ctrl_status sd_mmc_ram_2_mem_0	(	uint32_t	addr,
		const void *	ram
	)

Instance Declaration for sd_mmc_mem_2_ram Slot O.

References sd_mmc_ram_2_mem().

Ctrl_status sd_mmc_ram_2_mem_1	(	uint32_t	addr,
		const void *	ram
	)

Instance Declaration for sd_mmc_mem_2_ram Slot 1.

References sd_mmc_ram_2_mem().

Ctrl_status sd_mmc_read_capacity	(	uint8_t	slot,
		uint32_t *	u32_nb_sector
	)

Returns the address of the last valid sector in the memory.

Parameters

slot	SD/MMC Slot Card Selected.
u32_nb_sector	Pointer to the address of the last valid sector.

Returns

Status.

References sd_mmc_get_capacity(), and sd_mmc_test_unit_ready().

Referenced by sd_mmc_read_capacity_0(), and sd_mmc_read_capacity_1().

Ctrl_status sd_mmc_read_capacity_0

(

uint32_t *

u32_nb_sector

)

Instance Declaration for sd_mmc_read_capacity Slot O.

References sd_mmc_read_capacity().

Ctrl_status sd_mmc_read_capacity_1

(

uint32_t *

u32_nb_sector

)

Instance Declaration for sd_mmc_read_capacity Slot 1.

References sd_mmc_read_capacity().

bool sd_mmc_removal

(

uint8_t

slot

)

Tells whether the memory is removable.

Parameters

slot	SD/MMC Slot Card Selected.

Returns

true if the memory is removable, else false.

References UNUSED.

Referenced by sd_mmc_removal_0(), and sd_mmc_removal_1().

bool sd_mmc_removal_0

(

void

)

Instance Declaration for sd_mmc_removal Slot O.

References sd_mmc_removal().

bool sd_mmc_removal_1

(

void

)

Instance Declaration for sd_mmc_removal Slot 1.

References sd_mmc_removal().

Ctrl_status sd_mmc_test_unit_ready

(

uint8_t

slot

)

Tests the memory state and initializes the memory if required.

The TEST UNIT READY SCSI primary command allows an application client to poll a LUN until it is ready without having to allocate memory for returned data.

This command may be used to check the media status of LUNs with removable media.

Parameters

slot	SD/MMC Slot Card Selected.

Returns

Status.

References CARD_TYPE_MMC, CARD_TYPE_SD, CTRL_BUSY, CTRL_FAIL, CTRL_GOOD, CTRL_NO_PRESENT, sd_mmc_check(), sd_mmc_ejected, SD_MMC_ERR_NO_CARD, sd_mmc_get_type(), SD_MMC_INIT_ONGOING, and SD_MMC_OK.

Referenced by main(), sd_mmc_read_capacity(), sd_mmc_test_unit_ready_0(), and sd_mmc_test_unit_ready_1().

Ctrl_status sd_mmc_test_unit_ready_0

(

void

)

Instance Declaration for sd_mmc_test_unit_ready Slot O.

References sd_mmc_test_unit_ready().

Ctrl_status sd_mmc_test_unit_ready_1

(

void

)

Instance Declaration for sd_mmc_test_unit_ready Slot 1.

References sd_mmc_test_unit_ready().

bool sd_mmc_unload	(	uint8_t	slot,
		bool	unload
	)

Unload/Load the SD/MMC card selected.

The START STOP UNIT SCSI optional command allows an application client to eject the removable medium on a LUN.

Parameters

slot	SD/MMC Slot Card Selected.
unload	true to unload the medium, false to load the medium.

Returns

true if unload/load done success.

References sd_mmc_ejected, and unload.

Referenced by sd_mmc_unload_0(), and sd_mmc_unload_1().

bool sd_mmc_unload_0

(

bool

unload

)

Instance Declaration for sd_mmc_unload Slot O.

References sd_mmc_unload().

bool sd_mmc_unload_1

(

bool

unload

)

Instance Declaration for sd_mmc_unload Slot 1.

References sd_mmc_unload().

bool sd_mmc_wr_protect

(

uint8_t

slot

)

Returns the write-protection state of the memory.

Parameters

slot	SD/MMC Slot Card Selected.

Returns

true if the memory is write-protected, else false.

Note

Only used by removable memories with hardware-specific write protection.

References sd_mmc_is_write_protected().

Referenced by sd_mmc_wr_protect_0(), and sd_mmc_wr_protect_1().

bool sd_mmc_wr_protect_0

(

void

)

Instance Declaration for sd_mmc_wr_protect Slot O.

References sd_mmc_wr_protect().

bool sd_mmc_wr_protect_1

(

void

)

Instance Declaration for sd_mmc_wr_protect Slot 1.

References sd_mmc_wr_protect().