This module implements unified block device API. It could used as a middle layer between filesystems and memories. More...

Modules
	Empty implementation

	QSPI implementation

	Serial flash memory parameters

	RAM implementation
	This module implements block device API. It should be used as a reference block device.

	SDC implementation

Data Structures
struct	nrf_block_req_t
	Block device request descriptor item. More...

struct	nrf_block_dev_event_t
	Block device event. More...

struct	nrf_block_dev_geometry_t
	Block device geometry. More...

struct	nrf_block_dev_info_strings_t
	Block device information strings. More...

struct	nrf_block_dev_s
	Block device API. More...

Macros
#define	NRF_BLOCK_DEV_REQUEST(name, block_start, block_count, buff)
	Helper macro to create block device read/write request item. More...

#define	NFR_BLOCK_DEV_INFO_CONFIG(vendor, product, revision)
	Block device information config. More...

#define	NFR_BLOCK_DEV_INFO_CONFIG_EMPTY NFR_BLOCK_DEV_INFO_CONFIG(NULL, NULL, NULL)
	Empty info string initializer.

#define	NRF_BLOCKDEV_BASE_ADDR(instance, member) &(instance).member
	Helper macro to get block device address from specific instance. More...

Typedefs
typedef void(*	nrf_block_dev_ev_handler )(struct nrf_block_dev_s const p_blk_dev, nrf_block_dev_event_t const p_event)
	Block device event handler. More...

typedef struct nrf_block_dev_s	nrf_block_dev_t
	Block device API.

typedef struct nrf_block_dev_ops_s	nrf_block_dev_ops_t
	Internals of nrf_block_dev_t.

Enumerations
enum	nrf_block_dev_event_type_t { NRF_BLOCK_DEV_EVT_INIT, NRF_BLOCK_DEV_EVT_UNINIT, NRF_BLOCK_DEV_EVT_BLK_READ_DONE, NRF_BLOCK_DEV_EVT_BLK_WRITE_DONE }
	Block device events. More...

enum	nrf_block_dev_result_t { NRF_BLOCK_DEV_RESULT_SUCCESS = 0, NRF_BLOCK_DEV_RESULT_IO_ERROR, NRF_BLOCK_DEV_RESULT_TIMEOUT }

enum	nrf_block_dev_ioctl_req_t { NRF_BLOCK_DEV_IOCTL_REQ_CACHE_FLUSH = 0, NRF_BLOCK_DEV_IOCTL_REQ_INFO_STRINGS }
	Block device IOCTL requests. More...

Functions
static ret_code_t	nrf_blk_dev_init (nrf_block_dev_t const p_blk_dev, nrf_block_dev_ev_handler ev_handler, void const p_context)
	Initializes a block device. More...

static ret_code_t	nrf_blk_dev_uninit (nrf_block_dev_t const *p_blk_dev)
	Un-initializes a block device. More...

static ret_code_t	nrf_blk_dev_read_req (nrf_block_dev_t const p_blk_dev, nrf_block_req_t const p_blk)
	Block read request. More...

static ret_code_t	nrf_blk_dev_write_req (nrf_block_dev_t const p_blk_dev, nrf_block_req_t const p_blk)
	Block write request. More...

static ret_code_t	nrf_blk_dev_ioctl (nrf_block_dev_t const p_blk_dev, nrf_block_dev_ioctl_req_t req, void p_data)
	IO control function. More...

static nrf_block_dev_geometry_t const *	nrf_blk_dev_geometry (nrf_block_dev_t const *p_blk_dev)
	Return a geometry of a block device. More...

Detailed Description

This module implements unified block device API. It could used as a middle layer between filesystems and memories.

Macro Definition Documentation

#define NFR_BLOCK_DEV_INFO_CONFIG	(	vendor,
		product,
		revision
	)

Value:

( { \
 .p_vendor = vendor, \
 .p_product = product, \
 .p_revision = revision, \
})

Block device information config.

Parameters

vendor	Vendor string
product	Product string
revision	Revision string

#define NRF_BLOCK_DEV_REQUEST	(	name,
		block_start,
		block_count,
		buff
	)

Value:

nrf_block_req_t name = { \
 .blk_id = block_start, \
 .blk_count = block_count, \
 .p_buff = buff, \
 }

Helper macro to create block device read/write request item.

Parameters

name	Instance name
block_start	Block number start
block_count	Number of blocks
buff	Buffer to read/write

#define NRF_BLOCKDEV_BASE_ADDR	(	instance,
		member
	)	&(instance).member

Helper macro to get block device address from specific instance.

Parameters

instance	Block device instance
member	Block device member name

Typedef Documentation

typedef void(* nrf_block_dev_ev_handler)(struct nrf_block_dev_s const *p_blk_dev, nrf_block_dev_event_t const *p_event)

Block device event handler.

Parameters

[in]	p_blk_dev	Block device handle
[in]	p_event	Block device event

Enumeration Type Documentation

enum nrf_block_dev_event_type_t

Block device events.

Events are propagated when event handler is defined (nrf_blk_dev_init)

Enumerator
NRF_BLOCK_DEV_EVT_INIT	Passed to event handler when init is done
NRF_BLOCK_DEV_EVT_UNINIT	Passed to event handler when uninit is done
NRF_BLOCK_DEV_EVT_BLK_READ_DONE	Passed to event handler block read operation is done
NRF_BLOCK_DEV_EVT_BLK_WRITE_DONE	Passed to event handler block write operation is done

enum nrf_block_dev_ioctl_req_t

Block device IOCTL requests.

Enumerator
NRF_BLOCK_DEV_IOCTL_REQ_CACHE_FLUSH	Cache flush IOCTL request
NRF_BLOCK_DEV_IOCTL_REQ_INFO_STRINGS	Get info strings IOCTL request

enum nrf_block_dev_result_t

Enumerator
NRF_BLOCK_DEV_RESULT_SUCCESS	Operation completed succsefully
NRF_BLOCK_DEV_RESULT_IO_ERROR	I/O error
NRF_BLOCK_DEV_RESULT_TIMEOUT	Device timeout

Function Documentation

static nrf_block_dev_geometry_t const* nrf_blk_dev_geometry ( nrf_block_dev_t const * p_blk_dev )

inlinestatic

Return a geometry of a block device.

Parameters

[in] p_blk_dev Block device handle

Returns: Block size and count nrf_block_dev_geometry_t

static ret_code_t nrf_blk_dev_init	(	nrf_block_dev_t const *	p_blk_dev,
		nrf_block_dev_ev_handler	ev_handler,
		void const *	p_context
	)

inlinestatic

Initializes a block device.

Parameters

[in]	p_blk_dev	Block device handle
[in]	ev_handler	Event handler (pass NULL to work in synchronous mode)
[in]	p_context	Context passed to event handler

Returns: Standard error code

static ret_code_t nrf_blk_dev_ioctl	(	nrf_block_dev_t const *	p_blk_dev,
		nrf_block_dev_ioctl_req_t	req,
		void *	p_data
	)

inlinestatic

IO control function.

Parameters

[in]	p_blk_dev	Block device handle
[in]	req	Block device ioctl request
[in]	p_data	Block device ioctl data

Returns: Standard error code

static ret_code_t nrf_blk_dev_read_req	(	nrf_block_dev_t const *	p_blk_dev,
		nrf_block_req_t const *	p_blk
	)

inlinestatic

Block read request.

In synchronous mode this function will execute the read operation and wait for its completion. In asynchronous mode the function will only request the operation and return immediately. Then, the NRF_BLOCK_DEV_EVT_BLK_READ_DONE event will signal that operation has been completed and the specified buffer contains valid data.

Parameters

[in]	p_blk_dev	Block device handle
[in]	p_blk	Block device request

Returns: Standard error code

static ret_code_t nrf_blk_dev_uninit ( nrf_block_dev_t const * p_blk_dev )

inlinestatic

Un-initializes a block device.

Parameters

[in] p_blk_dev Block device handle

Returns: Standard error code

static ret_code_t nrf_blk_dev_write_req	(	nrf_block_dev_t const *	p_blk_dev,
		nrf_block_req_t const *	p_blk
	)

inlinestatic

Block write request.

In synchronous mode this function will execute the write operation and wait for its completion. In asynchronous mode the function will only request the operation and return immediately. Then, the NRF_BLOCK_DEV_EVT_BLK_WRITE_DONE event will signal that operation has been completed and the specified buffer can be freed.

Parameters

[in]	p_blk_dev	Block device handle
[in]	p_blk	Block device request

Returns: Standard error code

Modules

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation