main.c File Reference

#include "xparameters.h"
#include "sleep.h"
#include "xv_gamma_lut.h"
#include "xv_tpg.h"
#include "xvtc.h"
#include "xvidc.h"

Macros
#define	VideoClockGen_WriteReg(RegOffset, Data)   Xil_Out32((XPAR_VIDEO_CLK_WIZ_BASEADDR) + (RegOffset), (u32)(Data))
	Writes a value to the Video Clock Generator register. More...
#define	VideoClockGen_ReadReg(RegOffset)   Xil_In32((XPAR_VIDEO_CLK_WIZ_BASEADDR) + (RegOffset))
	Reads a value from the Video Clock Generator register. More...

Functions
int	driverInit ()
	Initializes video pipeline IP drivers. More...
void	videoIpConfig (XVidC_VideoMode videoMode)
	Configures video IP cores for the specified video mode. More...
int	videoClockConfig (XVidC_VideoMode videoMode)
	Configures the video clock generator for the specified video mode. More...
void	resetIp (void)
	Resets all video processing IP cores. More...
int	main ()
	Main test application for Gamma LUT video pipeline. More...

Macro Definition Documentation

#define VideoClockGen_ReadReg

(

RegOffset

)

Xil_In32((XPAR_VIDEO_CLK_WIZ_BASEADDR) + (RegOffset))

Reads a value from the Video Clock Generator register.

Referenced by videoClockConfig().

#define VideoClockGen_WriteReg	(		RegOffset,
			Data
	)		Xil_Out32((XPAR_VIDEO_CLK_WIZ_BASEADDR) + (RegOffset), (u32)(Data))

Writes a value to the Video Clock Generator register.

Referenced by videoClockConfig().

Function Documentation

int driverInit

(

)

Initializes video pipeline IP drivers.

This function initializes the VTC (Video Timing Controller), TPG (Test Pattern Generator), and Gamma LUT IP cores by looking up their configurations and performing configuration initialization.

Returns

XST_SUCCESS on successful initialization, XST_DEVICE_NOT_FOUND if any device is not found, or XST_FAILURE if initialization fails.

Note

This function supports both SDT and non-SDT build configurations.

References XV_gamma_lut_Config::BaseAddress, XV_gamma_lut_CfgInitialize(), and XV_gamma_lut_LookupConfig().

Referenced by main().

int main

(

)

Main test application for Gamma LUT video pipeline.

This function tests the video pipeline with Gamma LUT processing across multiple video resolutions (1080p60, 4K30, 4K60) based on the hardware capabilities. It initializes all IP drivers, configures the video clock and IP cores for each test mode, and verifies video lock status.

Returns

0 (XST_SUCCESS) if all tests pass, XST_FAILURE if any test fails.

Note

4K30 and 4K60 tests are conditionally executed based on the TPG's pixels-per-clock configuration capability.

References driverInit(), resetIp(), videoClockConfig(), and videoIpConfig().

void resetIp

(

void

)

Resets all video processing IP cores.

This function performs a hardware reset of all video IP cores in the pipeline by asserting the reset signal, waiting for stabilization, then releasing the reset signal.

Returns

None

Note

The reset is applied via GPIO and includes appropriate delays for hardware stabilization.

Referenced by main().

int videoClockConfig

(

XVidC_VideoMode

videoMode

)

Configures the video clock generator for the specified video mode.

This function programs the Video Clock Wizard IP to generate the appropriate pixel clock frequency for the requested video mode. It configures the PLL parameters (dividers, multipliers, and fractional values) based on the video resolution and pixels-per-clock setting, then waits for PLL lock.

Parameters

videoMode

The video mode identifier (e.g., 1080p60, 4K30, 4K60).

Returns

XST_SUCCESS if clock configuration succeeds and PLL locks, XST_FAILURE if the video mode is not supported or PLL fails to lock.

Note

Supports 1080p60, 4K30, and 4K60 video modes with variable pixels-per- clock configurations (1, 2, 4, or 8 PPC).

References VideoClockGen_ReadReg, and VideoClockGen_WriteReg.

Referenced by main().

void videoIpConfig

(

XVidC_VideoMode

videoMode

)

Configures video IP cores for the specified video mode.

This function configures the TPG (Test Pattern Generator), Gamma LUT, and VTC (Video Timing Controller) for the specified video resolution and timing. It sets up the frame dimensions, color format, pattern type, and timing parameters based on the requested video mode.

Parameters

videoMode

The video mode identifier (e.g., 1080p60, 4K30, 4K60).

Returns

None

Note

The TPG is configured to generate color bars pattern.

References XV_gamma_lut_EnableAutoRestart(), XV_gamma_lut_Set_HwReg_height(), XV_gamma_lut_Set_HwReg_video_format(), XV_gamma_lut_Set_HwReg_width(), and XV_gamma_lut_Start().

Referenced by main().