jr.h File Reference

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Functions
int	caam_jr_register (struct device *ctrldev, struct device **rdev)
int	caam_jr_deregister (struct device *rdev)
int	caam_jr_enqueue (struct device *dev, u32 *desc, void(*cbk)(struct device *dev, u32 *desc, u32 status, void *areq), void *areq)
int	caam_jr_probe (struct platform_device *pdev, struct device_node *np, int ring)
int	caam_jr_shutdown (struct device *dev)

Function Documentation

int caam_jr_deregister

(

struct device *

rdev

)

caam_jr_deregister() - Deregister an API and release the queue. Returns 0 if OK, -EBUSY if queue still contains pending entries or unprocessed results at the time of the call - points to the dev that identifies the queue to be released.

Definition at line 170 of file jr.c.

int caam_jr_enqueue	(	struct device *	dev,
		u32 *	desc,
		void(*)(struct device *dev, u32 *desc, u32 status, void *areq)	cbk,
		void *	areq
	)

caam_jr_enqueue() - Enqueue a job descriptor head. Returns 0 if OK, -EBUSY if the queue is full, -EIO if it cannot map the caller's descriptor. : device of the job ring to be used. This device should have been assigned prior by caam_jr_register(). : points to a job descriptor that execute our request. All descriptors (and all referenced data) must be in a DMAable region, and all data references must be physical addresses accessible to CAAM (i.e. within a PAMU window granted to it). : pointer to a callback function to be invoked upon completion of this request. This has the form: callback(struct device *dev, u32 *desc, u32 stat, void *arg) where: : contains the job ring device that processed this response. : descriptor that initiated the request, same as "desc" being argued to caam_jr_enqueue(). : untranslated status received from CAAM. See the reference manual for a detailed description of error meaning, or see the JRSTA definitions in the register header file : optional pointer to an argument passed with the original request : optional pointer to a user argument for use at callback time.

Definition at line 222 of file jr.c.

int caam_jr_probe	(	struct platform_device *	pdev,
		struct device_node *	np,
		int	ring
	)

Definition at line 418 of file jr.c.

int caam_jr_register	(	struct device *	ctrldev,
		struct device **	rdev
	)

caam_jr_register() - Alloc a ring for someone to use as needed. Returns an ordinal of the rings allocated, else returns -ENODEV if no rings are available. : points to the controller level dev (parent) that owns rings available for use. : points to where a pointer to the newly allocated queue's dev can be written to if successful.

Definition at line 137 of file jr.c.

int caam_jr_shutdown

(

struct device *

dev

)

Definition at line 389 of file jr.c.