Introduction

Implements Datapath doppler processing functionality using the HWA. Based on the RF parameters and range FFT output, dopplerProc configures hardware accelerator FFT engine in FFT mode, does the absolute sum across antenna and then starts creation of range doppler heatmap (takes 2-range bins to fill 64-bit EDMA interconnect). It also configures data input and output EDMA channels to bring data in and out of Doppler Processing memory.

The process is triggered in the inter-frame processing time after 1D-FFT.

After HWA processing is done, it generates interrupt to dopplerProc DPU, at the same time triggers EDMA data output channel to copy range-doppler heatmap results. EDMA interrupt done interrupt is triggered by EDMA hardware after the copy is completed.

Go to the source code of this file.

Data Structures
struct	DPU_DopplerProcHWA_InitParams
	dopplerProc DPU initial configuration parameters More...

struct	DPU_DopplerProcHWA_HwaSumOutput
	Sum filled by HWA statistics block. More...

struct	DPU_DopplerProcHWA_HwaCfg
	dopplerProc DPU HWA configuration parameters More...

struct	DPU_DopplerProcHWA_EdmaCfg
	dopplerProc DPU EDMA configuration parameters More...

struct	DPU_DopplerProcHWA_HW_Resources
	Doppler DPU HW configuration parameters. More...

struct	DPU_DopplerProcHWA_compressCfg
	Compression parameters. More...

struct	DPU_DopplerProcHWA_StaticConfig
	Doppler DPU static configuration parameters. More...

struct	DPU_DopplerProcHWA_Config
	dopplerProc DPU configuration parameters More...

struct	DPU_DopplerProcHWA_OutParams
	DPU processing output parameters. More...

Macros
#define	DPU_DOPPLERPROCHWA_EINVAL (DP_ERRNO_DOPPLER_PROC_BASE-1)
	Error Code: Invalid argument. More...

#define	DPU_DOPPLERPROCHWA_ENOMEM (DP_ERRNO_DOPPLER_PROC_BASE-2)
	Error Code: Out of memory. More...

#define	DPU_DOPPLERPROCHWA_EINPROGRESS (DP_ERRNO_DOPPLER_PROC_BASE-3)
	Error Code: DPU is in progress. More...

#define	DPU_DOPPLERPROCHWA_EHWARES (DP_ERRNO_DOPPLER_PROC_BASE-4)
	Error Code: Out of HWA resources. More...

#define	DPU_DOPPLERPROCHWA_ESEMA (DP_ERRNO_DOPPLER_PROC_BASE-5)
	Error Code: Semaphore creation failed. More...

#define	DPU_DOPPLERPROCHWA_ESEMASTATUS (DP_ERRNO_DOPPLER_PROC_BASE-6)
	Error Code: Bad semaphore status. More...

#define	DPU_DOPPLERPROCHWA_EEXCEEDHWAMEM (DP_ERRNO_DOPPLER_PROC_BASE-7)
	Error Code: Configure parameters exceed HWA memory bank size. More...

#define	DPU_DOPPLERPROCHWA_ECUBEFORMAT (DP_ERRNO_DOPPLER_PROC_BASE-8)
	Error Code: Unsupported radar cube format. More...

#define	DPU_DOPPLERPROCHWA_EDETMFORMAT (DP_ERRNO_DOPPLER_PROC_BASE-9)
	Error Code: Unsupported detection matrix format. More...

#define	DPU_DOPPLERPROCHWA_EDETMSIZE (DP_ERRNO_DOPPLER_PROC_BASE-10)
	Error Code: Insufficient detection matrix size. More...

#define	DPU_DOPPLERPROCHWA_EWINDSIZE (DP_ERRNO_DOPPLER_PROC_BASE-11)
	Error Code: Wrong window size. More...

#define	DPU_DOPPLERPROCHWA_MAX_NUM_HWA_PARAMSET 12
	Maximum number of HWA paramsets used by DPU. Computed as follows: 2(1 for each of the range bin 2DFFT)2(ping/pong) + 2(1 for each of the range bin Sum-Abs)2(ping/pong) = 8. More...

#define	DPU_DOPPLERPROCHWA_NUM_HWA_PARAMSET_PER_RANGE_BIN 2
	Number of HWA paramsets used by DPU for 2D FFT + detection matrix per range bin per ping/pong Computed as follows: (1 for Doppler FFT and 1 for detection matrix) = 2. More...

#define	DPU_DOPPLERPROCHWA_NUM_HWA_MEMBANKS 4
	Number of HWA memory banks needed. More...

#define	DPU_DOPPLERPROCHWA_FIRST_SCALING_DISABLED ((uint8_t)0U)
	Disables first butterfly stage scaling. More...

#define	DPU_DOPPLERPROCHWA_FIRST_SCALING_ENABLED ((uint8_t)1U)
	Enables first butterfly stage scaling. More...

Typedefs
typedef void *	DPU_DopplerProcHWA_Handle
	Handle for Doppler Processing DPU. More...

Functions
DPU_DopplerProcHWA_Handle	DPU_DopplerProcHWA_init (DPU_DopplerProcHWA_InitParams initCfg, int32_t errCode)

int32_t	DPU_DopplerProcHWA_process (DPU_DopplerProcHWA_Handle handle, DPU_DopplerProcHWA_OutParams *outParams)

int32_t	DPU_DopplerProcHWA_deinit (DPU_DopplerProcHWA_Handle handle)

int32_t	DPU_DopplerProcHWA_config (DPU_DopplerProcHWA_Handle handle, DPU_DopplerProcHWA_Config *cfg)

int32_t	DPU_DopplerProcHWA_GetNumUsedHwaParamSets (DPU_DopplerProcHWA_Handle handle, uint8_t *numUsedHwaParamSets)

Macro Definition Documentation

◆ DPU_DOPPLERPROCHWA_MAX_NUM_HWA_PARAMSET

#define DPU_DOPPLERPROCHWA_MAX_NUM_HWA_PARAMSET 12

Maximum number of HWA paramsets used by DPU. Computed as follows:
2*(1 for each of the range bin 2DFFT)*2(ping/pong) + 2*(1 for each of the range bin Sum-Abs)*2(ping/pong) = 8.

◆ DPU_DOPPLERPROCHWA_NUM_HWA_PARAMSET_PER_RANGE_BIN

#define DPU_DOPPLERPROCHWA_NUM_HWA_PARAMSET_PER_RANGE_BIN 2

Number of HWA paramsets used by DPU for 2D FFT + detection matrix per range bin per ping/pong Computed as follows:
(1 for Doppler FFT and 1 for detection matrix) = 2.

◆ DPU_DOPPLERPROCHWA_NUM_HWA_MEMBANKS

#define DPU_DOPPLERPROCHWA_NUM_HWA_MEMBANKS 4

Number of HWA memory banks needed.

◆ DPU_DOPPLERPROCHWA_FIRST_SCALING_DISABLED

#define DPU_DOPPLERPROCHWA_FIRST_SCALING_DISABLED ((uint8_t)0U)

Disables first butterfly stage scaling.

◆ DPU_DOPPLERPROCHWA_FIRST_SCALING_ENABLED

#define DPU_DOPPLERPROCHWA_FIRST_SCALING_ENABLED ((uint8_t)1U)

Enables first butterfly stage scaling.

Typedef Documentation

◆ DPU_DopplerProcHWA_Handle

typedef void* DPU_DopplerProcHWA_Handle

Handle for Doppler Processing DPU.

Function Documentation

◆ DPU_DopplerProcHWA_init()

DPU_DopplerProcHWA_Handle DPU_DopplerProcHWA_init	(	DPU_DopplerProcHWA_InitParams *	initCfg,
		int32_t *	errCode
	)

◆ DPU_DopplerProcHWA_process()

int32_t DPU_DopplerProcHWA_process	(	DPU_DopplerProcHWA_Handle	handle,
		DPU_DopplerProcHWA_OutParams *	outParams
	)

◆ DPU_DopplerProcHWA_deinit()

int32_t DPU_DopplerProcHWA_deinit ( DPU_DopplerProcHWA_Handle handle )

◆ DPU_DopplerProcHWA_config()

int32_t DPU_DopplerProcHWA_config	(	DPU_DopplerProcHWA_Handle	handle,
		DPU_DopplerProcHWA_Config *	cfg
	)

◆ DPU_DopplerProcHWA_GetNumUsedHwaParamSets()

int32_t DPU_DopplerProcHWA_GetNumUsedHwaParamSets	(	DPU_DopplerProcHWA_Handle	handle,
		uint8_t *	numUsedHwaParamSets
	)