Sync Manager Buffer mode handling

Introduction

Functions
uint16_t	bsp_get_process_data_address (PRUICSS_Handle pruIcssHandle, uint16_t address, uint16_t len, int16_t *p_sm_index)
	Get the actual address of the buffer for PDI side read/write from host in 3-buffer mode. More...
void	bsp_process_data_access_complete (PRUICSS_Handle pruIcssHandle, uint16_t address, uint16_t len, int16_t sm_index)
	This API is invoked after PDI side completes read/write to PD address returned by bsp_get_process_data_address to indicate this to firmware for swapping buffers etc. More...

Function Documentation

bsp_get_process_data_address()

uint16_t bsp_get_process_data_address	(	PRUICSS_Handle	pruIcssHandle,
		uint16_t	address,
		uint16_t	len,
		int16_t *	p_sm_index
	)

Get the actual address of the buffer for PDI side read/write from host in 3-buffer mode.

Parameters

pruIcssHandle	PRUSS Handle
address	SM buffer address for PDI side access
len	SM Buffer length for PDI side access
p_sm_index	Matching SM index corresponding to address

Return values

actual

PDI address in memory. 0 in case of error, or lock unavailability (See LOCK_PD_BUF_CHECK_AVAILABILITY_RETRY_COUNT)

bsp_process_data_access_complete()

void bsp_process_data_access_complete	(	PRUICSS_Handle	pruIcssHandle,
		uint16_t	address,
		uint16_t	len,
		int16_t	sm_index
	)

This API is invoked after PDI side completes read/write to PD address returned by bsp_get_process_data_address to indicate this to firmware for swapping buffers etc.

Parameters

pruIcssHandle	PRUSS Handle
address	SM buffer address for PDI side access
len	SM buffer length for PDI side access
sm_index	SM index of this process data buffer