1 Kernel

Data Structures
struct	arm_2d_runtime_feature_t
struct	arm_2d_version_t

Functions
void	arm_2d_init (void)
	initialise arm-2d More...
arm_2d_tile_t *	arm_2d_set_default_frame_buffer (const arm_2d_tile_t *ptFrameBuffer)
	set the default frame buffer More...
arm_2d_tile_t *	arm_2d_get_default_frame_buffer (void)
	get the default frame buffer More...
void	arm_2d_set_user_param (arm_2d_op_core_t *ptOP, uintptr_t pUserParam)
	attach a user param (which could be a pointer) to specified OP More...
bool	arm_2d_op_wait_async (arm_2d_op_core_t *ptOP)
	wait asynchronouse operation complete More...
arm_2d_op_status_t	arm_2d_get_op_status (arm_2d_op_core_t *ptOP)
	get the status of a specified OP, More...
arm_fsm_rt_t	arm_2d_task (arm_2d_task_t *ptTask)
	arm-2d pixel pipeline task entery More...

Variables
arm_2d_runtime_feature_t	ARM_2D_RUNTIME_FEATURE
const arm_2d_version_t	ARM_2D_VERSION

arm-2d version
#define	ARM_2D_VERSION_MAJOR   1
#define	ARM_2D_VERSION_MINOR   0
#define	ARM_2D_VERSION_PATCH   0
#define	ARM_2D_VERSION_STR   "preview"
#define	ARM_2D_VERISON

Description

---

Data Structure Documentation

arm_2d_runtime_feature_t

struct arm_2d_runtime_feature_t

Data Fields
uint8_t	TREAT_OUT_OF_RANGE_AS_COMPLETE: 1	if the target region is out of the target tile, return arm_fsm_rt_cpl
uint8_t	HAS_DEDICATED_THREAD_FOR_2D_TASK: 1	indicate that there is a dedicated thread to run arm_2d_task() in RTOS env

arm_2d_version_t

struct arm_2d_version_t

Data Fields
uint8_t	Major
uint8_t	Minor
uint8_t	Patch

Macro Definition Documentation

ARM_2D_VERISON

#define ARM_2D_VERISON

Value:

                                    (   ARM_2D_VERSION_MAJOR * 10000ul          \
                                    +   ARM_2D_VERSION_MINOR * 100ul            \
                                        ARM_2D_VERSION_PATCH)

Function Documentation

arm_2d_init()

void arm_2d_init

(

void

)

initialise arm-2d

arm_2d_set_default_frame_buffer()

arm_2d_tile_t * arm_2d_set_default_frame_buffer

(

const arm_2d_tile_t *

ptFrameBuffer

)

set the default frame buffer

Parameters

ptFrameBuffer

the new frame buffer,

Note

Passing NULL means using no default framebuffer

Returns

arm_2d_tile_t* the address of the old frame buffer

arm_2d_get_default_frame_buffer()

arm_2d_tile_t * arm_2d_get_default_frame_buffer

(

void

)

get the default frame buffer

Returns

arm_2d_tile_t* the address of the default frame buffer

arm_2d_set_user_param()

void arm_2d_set_user_param	(	arm_2d_op_core_t *	ptOP,
		uintptr_t	pUserParam
	)

attach a user param (which could be a pointer) to specified OP

Parameters

ptOP	the address of the target OP (NULL means using the default OP)
pUserParam	a user parameter (it can be used as a pointer)

arm_2d_op_wait_async()

bool arm_2d_op_wait_async

(

arm_2d_op_core_t *

ptOP

)

wait asynchronouse operation complete

Return values

true	sync up with operation
false	operation is busy

arm_2d_get_op_status()

arm_2d_op_status_t arm_2d_get_op_status

(

arm_2d_op_core_t *

ptOP

)

get the status of a specified OP,

usually, it is used after calling arm_2d_op_wait_async(). E.g.

//! wait for previous operation complete
do {
    arm_2d_op_wait_async();
    arm_2d_op_status_t tStatus = arm_2d_get_op_status();
    if (tStatus.bIOError) {
        //! error detected
        ...
    } else if (tStatus.bOpCpl) {
        break;
    }
} while(true);

Parameters

ptOP	the address of the target OP (NULL means using the default OP)

Returns

arm_2d_op_status_t the operation status

arm_2d_task()

arm_fsm_rt_t arm_2d_task

(

arm_2d_task_t *

ptTask

)

arm-2d pixel pipeline task entery

Note

This function is TRHEAD-SAFE

Parameters

ptTask

the address of an arm-2d task control block

Return values

arm_fsm_rt_cpl	The sub-task FIFO is empty, the caller can wait for a semaphore set by arm_2d_notif_sub_task_fifo_task_arrive()
arm_fsm_rt_on_going	The arm_2d_task yields
arm_fsm_rt_async	You shouldn't see this value
arm_fsm_rt_wait_for_obj	hardware accelerator wants to sync-up with applications.
(<0)	Serious error is detected.