rtio.h File Reference

#include <zephyr/kernel.h>
#include <zephyr/drivers/i3c.h>
#include <zephyr/rtio/rtio.h>

Go to the source code of this file.

Data Structures
struct	i3c_rtio
	Driver context for implementing i3c with rtio. More...

Macros
#define	I3C_RTIO_DEFINE(_name, _sq_sz, _cq_sz)
	Statically define an i3c_rtio context.

Functions
struct rtio_sqe *	i3c_rtio_copy (struct rtio *r, struct rtio_iodev *iodev, const struct i3c_msg *msgs, uint8_t num_msgs)
	Copy an array of i3c_msgs to rtio submissions and a transaction.
void	i3c_rtio_init (struct i3c_rtio *ctx)
	Initialize an i3c rtio context.
bool	i3c_rtio_complete (struct i3c_rtio *ctx, int status)
	Signal that the current (ctx->txn_curr) submission has been completed.
bool	i3c_rtio_submit (struct i3c_rtio *ctx, struct rtio_iodev_sqe *iodev_sqe)
	Submit, atomically, a submission to work on at some point.
int	i3c_rtio_configure (struct i3c_rtio *ctx, enum i3c_config_type type, void *config)
	Configure the I3C bus controller.
int	i3c_rtio_transfer (struct i3c_rtio *ctx, struct i3c_msg *msgs, uint8_t num_msgs, struct i3c_device_desc *desc)
	Transfer i3c messages in a blocking call.
int	i3c_rtio_recover (struct i3c_rtio *ctx)
	Perform an I3C bus recovery in a blocking call.
int	i3c_rtio_ccc (struct i3c_rtio *ctx, struct i3c_ccc_payload *payload)
	Perform an I3C CCC in a blocking call.

Macro Definition Documentation

I3C_RTIO_DEFINE

#define I3C_RTIO_DEFINE	(		_name,
			_sq_sz,
			_cq_sz )

Value:

        RTIO_DEFINE(CONCAT(_name, _r), _sq_sz, _cq_sz); \
        static struct i3c_rtio _name = {                \
                .r = &CONCAT(_name, _r),                \
        };

Statically define an i3c_rtio context.

Parameters

_name	Symbolic name of the context
_sq_sz	Submission queue entry pool size
_cq_sz	Completion queue entry pool size

Function Documentation

i3c_rtio_ccc()

int i3c_rtio_ccc	(	struct i3c_rtio *	ctx,
		struct i3c_ccc_payload *	payload )

Perform an I3C CCC in a blocking call.

Provides a compatible API for the existing i3c_do_ccc API, and blocks the caller until the process completes.

See i3c_do_ccc().

i3c_rtio_complete()

bool i3c_rtio_complete	(	struct i3c_rtio *	ctx,
		int	status )

Signal that the current (ctx->txn_curr) submission has been completed.

Parameters

ctx	I3C RTIO driver context
status	Completion status, negative values are errors

Return values

true	Next submission is ready to start
false	No more submissions to work on

i3c_rtio_configure()

int i3c_rtio_configure	(	struct i3c_rtio *	ctx,
		enum i3c_config_type	type,
		void *	config )

Configure the I3C bus controller.

Provides a compatible API for the existing i3c_configure API, and blocks the caller until the transfer completes.

See i3c_configure().

i3c_rtio_copy()

struct rtio_sqe * i3c_rtio_copy	(	struct rtio *	r,
		struct rtio_iodev *	iodev,
		const struct i3c_msg *	msgs,
		uint8_t	num_msgs )

Copy an array of i3c_msgs to rtio submissions and a transaction.

Return values

sqe	Last sqe setup in the copy
NULL	Not enough memory to copy the transaction

i3c_rtio_init()

void i3c_rtio_init

(

struct i3c_rtio *

ctx

)

Initialize an i3c rtio context.

Parameters

ctx	I3C RTIO driver context

i3c_rtio_recover()

int i3c_rtio_recover

(

struct i3c_rtio *

ctx

)

Perform an I3C bus recovery in a blocking call.

Provides a compatible API for the existing i3c_recover API, and blocks the caller until the process completes.

See i3c_recover().

i3c_rtio_submit()

bool i3c_rtio_submit	(	struct i3c_rtio *	ctx,
		struct rtio_iodev_sqe *	iodev_sqe )

Submit, atomically, a submission to work on at some point.

Return values

true	Next submission is ready to start
false	No new submission to start or submissions are in progress already

i3c_rtio_transfer()

int i3c_rtio_transfer	(	struct i3c_rtio *	ctx,
		struct i3c_msg *	msgs,
		uint8_t	num_msgs,
		struct i3c_device_desc *	desc )

Transfer i3c messages in a blocking call.

Provides a compatible API for the existing i3c_transfer API, and blocks the caller until the transfer completes.

See i3c_transfer().