dppt.h File Reference

Overview

This file contains functions to configure Video Pattern Generator core.

MODIFICATION HISTORY:

Ver   Who    Date     Changes



1.00  YB    07/01/15 Initial release.

MODIFICATION HISTORY:

Ver   Who    Date     Changes



1.00  KI    07/13/17 Initial release.

#include <stdio.h>
#include <math.h>
#include "xiic.h"
#include "xiic_l.h"
#include "xbasic_types.h"
#include "xil_types.h"
#include "xparameters.h"
#include "xil_cache.h"
#include "xgpio.h"
#include "xuartlite.h"
#include "xuartlite_l.h"
#include "xtmrctr.h"
#include "xintc.h"
#include "xvphy.h"
#include "xvphy_i.h"
#include "xvidc_edid.h"
#include "xvidc.h"
#include "xdptxss.h"
#include "xdprxss.h"
#include "xdp.h"
#include "stdlib.h"
#include "xvid_pat_gen.h"
#include "idt_8t49n24x.h"
#include "ti_lmk03318.h"
#include "videofmc_defs.h"
#include "xdebug.h"
#include "xlib_string.h"
#include "xedid_print_example.h"
#include "xaxivdma.h"
#include "dppt_vdma.h"
#include "dppt_vid_phy_config.h"
#include "xvidframe_crc.h"

Functions
int	DpPt_SetupIntrSystem ()
	This function is sets up Interrupt system and start it. More...
void	DpPt_HpdEventHandler (void *InstancePtr)
	This function takes care HPD event. More...
void	DpPt_HpdPulseHandler (void *InstancePtr)
	This function takes care HPD pulse interrupt. More...
void	DpPt_LinkrateChgHandler (void *InstancePtr)
	This function sets link line rate. More...
u8	get_LineRate (void)
	This function returns current line rate. More...
void	DpRxSs_AccessLaneSetHandler (void *InstancePtr)
	This function is the callback function for Access lane set request. More...
void	DpRxSs_AccessLinkQualHandler (void *InstancePtr)
	This function is the callback function for Access link qual request. More...
void	DpRxSs_AccessErrorCounterHandler (void *InstancePtr)
	This function is the callback function for Access prbs error count. More...
void	DpRxSs_CRCTestEventHandler (void *InstancePtr)
	This function is the callback function for Test CRC Event request. More...
void	DpRxSs_InfoPacketHandler (void *InstancePtr)
	This function is the callback function for Info Packet Handling. More...
void	DpRxSs_ExtPacketHandler (void *InstancePtr)
	This function is the callback function for Generic Packet Handling of 32-Bytes payload. More...
void	DpPt_CustomWaitUs (void *InstancePtr, u32 MicroSeconds)
	This function use h/w timer to count specific Microseconds. More...
void	hpd_con ()
	This function is called when a Hot-Plug-Detect (HPD) event is received by the DisplayPort TX Subsystem core. More...
void	hpd_pulse_con ()
	This function is called when a Hot-Plug-Detect (HPD) pulse is received by the DisplayPort TX Subsystem core. More...
void	start_tx (u8 line_rate, u8 lane_count, XVidC_VideoMode res_table, u8 bpc, u8 pat, u8 pat_update)
	This is for Tx only mode This function will start outputting internal video pattern image Setup GT, DP, pattern and generator. More...
void	reset_clkwiz ()
	This function will reset Tx side MMCM. More...
void	clk_wiz_locked ()
	This function to check MMCM lock status. More...
u8	i2c_read_dp141 (u32 I2CBaseAddress, u8 I2CSlaveAddress, u16 RegisterAddress)
	This function reads DP141 VFMC- IIC. More...
int	VideoFMC_Init (void)
	This function will detect video resolution/frequency change Many GPUs won't re-train when only video res/freq change. More...
void	I2C_Scan (u32 BaseAddress)
	This function scans VFMC- IIC. More...
void	video_change_detect (u32 *count_track, u32 *rxMsamisc0_track, u32 *bpc_track, u32 *recv_clk_freq_track, float *recv_frame_clk_track, u32 *recv_frame_clk_int_track, int *track_count)
	This function will detect video resolution/frequency change Many GPUs won't re-train when only video res/freq change. More...
void	detect_rx_video_and_startTx (int *track_count1)
	This function detects incoming video and find out video parameters Based on the parameters, set up Tx and VDMA, then start Tx output. More...
void	switch_to_Tx_only (int *track_switch, u8 *pwr_dwn_x)
	This function will be used when no incoming video at pass-through mode If no video, switching to internal pattern generator. More...
void	sink_power_cycle (u32 power_down_time)
	This function will send power down and power up command over AUX. More...
void	Vpg_Audio_start (void)
	This function starts audio pattern generator. More...
void	Vpg_Audio_stop ()
	This function stops audio pattern generator. More...
void	resetIp ()
	This function toggles HW reset line for all IP's. More...
void	update_edid ()
	This function will update and overwrite EDID color depth 10BPC will be changed to 8BPC due to design limitation. More...
void	Print_InfoPkt ()
	This function is the callback function for Info Packet Handling. More...
void	Print_ExtPkt ()
	This function is the callback function for Ext Packet Handling. More...

Function Documentation

void clk_wiz_locked

(

void

)

This function to check MMCM lock status.

Parameters

None.

Returns

None.

Note

None.

This function to check MMCM lock status.

Returns

None

Referenced by start_tx().

void detect_rx_video_and_startTx

(

int *

track_count1

)

This function detects incoming video and find out video parameters Based on the parameters, set up Tx and VDMA, then start Tx output.

Returns

None

References XDpTxSs::DpPtr, Vpg_StreamSrcConfigure(), Vpg_VidgenSetUserPattern(), XDpTxSs_Reset(), and XDpTxSs_Stop().

void DpPt_CustomWaitUs	(	void *	InstancePtr,
		u32	MicroSeconds
	)

This function use h/w timer to count specific Microseconds.

Parameters

pointer	to timer
MicroSeconds	to wait

Returns

None.

Note

None.

This function use h/w timer to count specific Microseconds.

It provides timer with predefined amount of loop iterations.

Parameters

InstancePtr

is a pointer to the XDp instance.

Returns

None.

Note

Use the XDpTxSs_SetUserTimerHandler driver function to set this function as the handler custom delay/sleep.

Referenced by DpTxSs_SetupIntrSystem(), reconfig_clkwiz(), sink_power_cycle(), and start_tx().

void DpPt_HpdEventHandler

(

void *

InstancePtr

)

This function takes care HPD event.

Returns

None.

Note

None.

References XDpTxSs::DpPtr, sink_power_down(), sink_power_up(), and XDpTxSs_IsConnected().

Referenced by DpTxSs_SetupIntrSystem().

void DpPt_HpdPulseHandler

(

void *

InstancePtr

)

This function takes care HPD pulse interrupt.

Returns

None.

Note

None.

References XDpTxSs::DpPtr.

Referenced by DpTxSs_SetupIntrSystem().

void DpPt_LinkrateChgHandler

(

void *

InstancePtr

)

This function sets link line rate.

Parameters

@return

None.

Note

None.

References get_LineRate(), and set_vphy().

Referenced by DpTxSs_SetupIntrSystem().

int DpPt_SetupIntrSystem

(

)

This function is sets up Interrupt system and start it.

Returns

None.

References XDpTxSs::Config, and XDpTxSs_DpIntrHandler().

void DpRxSs_AccessErrorCounterHandler

(

void *

InstancePtr

)

This function is the callback function for Access prbs error count.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

void DpRxSs_AccessLaneSetHandler

(

void *

InstancePtr

)

This function is the callback function for Access lane set request.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

void DpRxSs_AccessLinkQualHandler

(

void *

InstancePtr

)

This function is the callback function for Access link qual request.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

void DpRxSs_CRCTestEventHandler

(

void *

InstancePtr

)

This function is the callback function for Test CRC Event request.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

void DpRxSs_ExtPacketHandler

(

void *

InstancePtr

)

This function is the callback function for Generic Packet Handling of 32-Bytes payload.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

void DpRxSs_InfoPacketHandler

(

void *

InstancePtr

)

This function is the callback function for Info Packet Handling.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

u8 get_LineRate

(

void

)

This function returns current line rate.

Parameters

None.

Returns

None.

Note

None.

References XDpTxSs::DpPtr.

void hpd_con

(

)

This function is called when a Hot-Plug-Detect (HPD) event is received by the DisplayPort TX Subsystem core.

Parameters

InstancePtr

is a pointer to the XDpTxSs instance.

Returns

None.

Note

Use the XDpTxSs_SetCallback driver function to set this function as the handler for HPD event.

References XDpTxSs::DpPtr, update_edid(), XDpTxSs_SetLaneCount(), and XDpTxSs_SetLinkRate().

void hpd_pulse_con

(

)

This function is called when a Hot-Plug-Detect (HPD) pulse is received by the DisplayPort TX Subsystem core.

Parameters

InstancePtr

is a pointer to the XDpTxSs instance.

Returns

None.

Note

Use the XDpTxSs_SetCallback driver function to set this function as the handler for HPD pulse.

References XDpTxSs::DpPtr, XDpTxSs_SetLaneCount(), and XDpTxSs_SetLinkRate().

u8 i2c_read_dp141	(	u32	I2CBaseAddress,
		u8	I2CSlaveAddress,
		u16	RegisterAddress
	)

This function reads DP141 VFMC- IIC.

Parameters

None.

Returns

None.

Note

None.

void I2C_Scan

(

u32

BaseAddress

)

This function scans VFMC- IIC.

Parameters

None.

Returns

None.

Note

None.

Referenced by VideoFMC_Init().

void Print_ExtPkt

(

)

This function is the callback function for Ext Packet Handling.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

void Print_InfoPkt

(

)

This function is the callback function for Info Packet Handling.

Parameters

InstancePtr

is a pointer to the XDpRxSs instance.

Returns

None.

Note

None.

void reset_clkwiz

(

)

This function will reset Tx side MMCM.

Returns

None

void resetIp

(

)

This function toggles HW reset line for all IP's.

Returns

None

void sink_power_cycle

(

u32

power_down_time

)

This function will send power down and power up command over AUX.

Returns

None

References DpPt_CustomWaitUs(), and XDpTxSs::DpPtr.

void start_tx	(	u8	line_rate,
		u8	lane_count,
		XVidC_VideoMode	res_table,
		u8	bpc,
		u8	pat,
		u8	pat_update
	)

This is for Tx only mode This function will start outputting internal video pattern image Setup GT, DP, pattern and generator.

Parameters

line_rate	Link rate setting for the DisplayPort transmission
lane_count	Number of lanes to use for transmission
res_table	Video resolution mode from the resolution table
bpc	Bits per color component (e.g., 8, 10, 12)
pat	Pattern type identifier (unused parameter)
pat_update	Pattern update flag to select video pattern

Note

This function configures the DisplayPort TX subsystem with the specified parameters, trains the link, and starts video output with the selected internal pattern generator settings.

References clk_wiz_locked(), DpPt_CustomWaitUs(), XDpTxSs::DpPtr, XDpTxSs_UsrOpt::NumOfStreams, sink_power_cycle(), XDpTxSs::UsrOpt, Vpg_StreamSrcConfigure(), Vpg_VidgenSetUserPattern(), XDpTxSs_UsrOpt::VtcAdjustBs, XDpTxSs::VtcPtr, XDpTxSs_CheckLinkStatus(), XDpTxSs_SetBpc(), XDpTxSs_SetLaneCount(), XDpTxSs_SetLinkRate(), XDpTxSs_SetVidMode(), and XDpTxSs_VtcSetup().

void switch_to_Tx_only	(	int *	track_switch,
		u8 *	pwr_dwn_x
	)

This function will be used when no incoming video at pass-through mode If no video, switching to internal pattern generator.

Returns

None

References XDpTxSs::DpPtr, PHY_Configuration_Tx(), sink_power_cycle(), start_tx(), Vpg_StreamSrcConfigure(), Vpg_VidgenSetUserPattern(), XDpTxSs_Reset(), and XDpTxSs_Stop().

void update_edid

(

)

This function will update and overwrite EDID color depth 10BPC will be changed to 8BPC due to design limitation.

Returns

None

Referenced by hpd_con().

void video_change_detect	(	u32 *	count_track,
		u32 *	rxMsamisc0_track,
		u32 *	bpc_track,
		u32 *	recv_clk_freq_track,
		float *	recv_frame_clk_track,
		u32 *	recv_frame_clk_int_track,
		int *	track_count
	)

This function will detect video resolution/frequency change Many GPUs won't re-train when only video res/freq change.

Application needs to know if it changed and need to detect new parameter. Based on the parameter, re-set and re-start VDAM and Tx

Returns

None

References XDpTxSs::DpPtr, Vpg_VidgenSetUserPattern(), and XDpTxSs_Stop().

int VideoFMC_Init

(

void

)

This function will detect video resolution/frequency change Many GPUs won't re-train when only video res/freq change.

Application needs to know if it changed and need to detect new parameter. Based on the parameter, re-set and re-start VDAM and Tx

Returns

None

This function will detect video resolution/frequency change Many GPUs won't re-train when only video res/freq change.

Parameters

None.

Returns

None.

Note

None.

Application needs to know if it changed and need to detect new parameter. Based on the parameter, re-set and re-start VDAM and Tx

Returns

None

This function will detect video resolution/frequency change Many GPUs won't re-train when only video res/freq change.

Parameters

None.

Returns

None.

Note

None.

References I2C_IDT8N49_ADDR, I2C_LMK03318_ADDR, I2C_MUX_ADDR, I2C_VFMCEXP_0_ADDR, I2C_VFMCEXP_1_ADDR, IDT_8T49N24x_Init(), and TI_LMK03318_PowerDown().

void Vpg_Audio_start

(

void

)

This function starts audio pattern generator.

Returns

None.

Note

None.

void Vpg_Audio_stop

(

void

)

This function stops audio pattern generator.

Returns

None.

Note

None.