tx.h File Reference

Overview

MODIFICATION HISTORY:

Ver   Who    Date     Changes

Functions
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...
void	DpTxSs_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 (XDpTxSs *InstancePtr, u8 Edid_org[128], u8 Edid1_org[128], u16 res_update)
	This function is called when a Hot-Plug-Detect (HPD) event is received by the DisplayPort TX Subsystem core. More...
void	hpd_pulse_con (XDpTxSs *InstancePtr, XDpTxSs_MainStreamAttributes Msa[4])
	This function is the main hpd pulse process. More...
char	xil_getc (u32 timeout_ms)
	This function to get uart input from user. More...
void	Vpg_Audio_start (void)
	This function starts audio pattern generator. More...
void	Vpg_Audio_stop (void)
	This function stops audio pattern generator. More...
u32	start_tx (u8 line_rate, u8 lane_count, user_config_struct user_config, XDpTxSs_MainStreamAttributes Msa[4])
	This function starts tx process. More...
u32	config_phy (int LineRate_init_tx)
	This function sets VPHY based on the linerate. More...
void	Vpg_VidgenSetUserPattern (XDp *InstancePtr, u8 Pattern)
	This function sets user pattern. More...
void	sink_power_down (void)
	This function powers down sink. More...
void	sink_power_up (void)
	This function powers down sink. More...
u8	get_LineRate (void)
	This function returns current line rate. More...
u8	get_Lanecounts (void)
	This function returns current lane counts. More...
void	sink_power_cycle (void)
	This function power cycle the sink. More...
int	IDT_8T49N24x_SetClock (u32 I2CBaseAddress, u8 I2CSlaveAddress, int FIn, int FOut, u8 FreeRun)
	This function calculates and sets the IDT 8TN49N24x device with the given clock configuration. More...
int	IDT_8T49N24x_Init (u32 I2CBaseAddress, u8 I2CSlaveAddress)
	This function initializes the IDT 8TN49N24x with default values for use with the Video FMC. More...
int	TI_LMK03318_PowerDown (u32 I2CBaseAddress, u8 I2CSlaveAddress)
	This function puts the TI LMK03318 into sleep. More...
void	DpTxSs_Setup (u8 *LineRate_init, u8 *LaneCount_init, u8 Edid_org[128], u8 Edid1_org[128])
	This function sets up DPTxSubsystem. More...
u32	DpTxSs_SetupIntrSystem (void)
	This function sets up the interrupt system so interrupts can occur for the DisplayPort TX Subsystem core. More...

Function Documentation

u32 config_phy

(

int

LineRate_init_tx

)

This function sets VPHY based on the linerate.

Parameters

user_config_struct.

Returns

Status.

Note

None.

Parameters

LineRate_init_tx

- Linerate LaneCount_init_tx - Lanecount

Returns

Status.

Note

None.

Referenced by DpPt_LinkrateChgHandler().

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.

References TmrCtr.

Referenced by DpTxSs_SetupIntrSystem().

void DpPt_HpdEventHandler

(

void *

InstancePtr

)

This function takes care HPD event.

Returns

None.

Note

None.

References XDpTxSs::DpPtr, 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 config_phy(), and get_LineRate().

Referenced by DpTxSs_SetupIntrSystem().

void DpTxSs_ExtPacketHandler

(

void *

InstancePtr

)

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

Parameters

InstancePtr

is a pointer to the XDpTxSs instance.

Returns

None.

Note

None.

Referenced by DpTxSs_SetupIntrSystem().

void DpTxSs_Setup	(	u8 *	LineRate_init,
		u8 *	LaneCount_init,
		u8	Edid_org[128],
		u8	Edid1_org[128]
	)

This function sets up DPTxSubsystem.

Parameters

LineRate
LaneCount
edid	1st block
edid	2nd block

Returns

None.

Note

None.

References XDpTxSs::DpPtr, sink_power_cycle(), and XDpTxSs_IsConnected().

u32 DpTxSs_SetupIntrSystem

(

void

)

This function sets up the interrupt system so interrupts can occur for the DisplayPort TX Subsystem core.

The function is application-specific since the actual system may or may not have an interrupt controller. The DPTX Subsystem core could be directly connected to a processor without an interrupt controller. The user should modify this function to fit the application.

Parameters

None

Returns

• XST_SUCCESS if interrupt setup was successful.
• A specific error code defined in "xstatus.h" if an error occurs.

Note

None.

References DpPt_CustomWaitUs(), DpPt_HpdEventHandler(), DpPt_HpdPulseHandler(), DpPt_LinkrateChgHandler(), DpTxSs_ExtPacketHandler(), TmrCtr, XDPTXSS_HANDLER_DP_EXT_PKT_EVENT, XDPTXSS_HANDLER_DP_FFE_PRESET_ADJUST, XDPTXSS_HANDLER_DP_HPD_EVENT, XDPTXSS_HANDLER_DP_HPD_PULSE, XDPTXSS_HANDLER_DP_LINK_RATE_CHG, XDPTXSS_HANDLER_DP_PE_VS_ADJUST, XDPTXSS_HANDLER_DP_VSYNC, XDpTxSs_SetCallBack(), and XDpTxSs_SetUserTimerHandler().

u8 get_Lanecounts

(

void

)

This function returns current lane counts.

Parameters

None.

Returns

None.

Note

None.

References XDpTxSs::DpPtr.

u8 get_LineRate

(

void

)

This function returns current line rate.

Parameters

None.

Returns

None.

Note

None.

References XDpTxSs_GetLinkRate().

Referenced by DpPt_LinkrateChgHandler().

void hpd_con	(	XDpTxSs *	InstancePtr,
		u8	Edid_org[128],
		u8	Edid1_org[128],
		u16	res_update
	)

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.

void hpd_pulse_con	(	XDpTxSs *	InstancePtr,
		XDpTxSs_MainStreamAttributes	Msa[4]
	)

This function is the main hpd pulse process.

Returns

None.

Note

None.

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

void sink_power_cycle

(

void

)

This function power cycle the sink.

Parameters

user_config_struct.

Returns

Status.

Note

None.

References sink_power_up().

Referenced by DpTxSs_Setup(), and start_tx().

void sink_power_down

(

void

)

This function powers down sink.

Parameters

None.

Returns

None.

Note

None.

References XDpTxSs::DpPtr.

void sink_power_up

(

void

)

This function powers down sink.

Parameters

None.

Returns

None.

Note

None.

References XDpTxSs::DpPtr.

Referenced by DpPt_HpdEventHandler(), and sink_power_cycle().

u32 start_tx	(	u8	line_rate,
		u8	lane_count,
		user_config_struct	user_config,
		XDpTxSs_MainStreamAttributes	Msa_test[4]
	)

This function starts tx process.

Parameters

line	rate
lane	counts
pointer	to resolution table
bit	per components
video	pattern to output

Returns

• XST_SUCCESS if interrupt setup was successful.
• A specific error code defined in "xstatus.h" if an error occurs.

Note

None.

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

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.

void Vpg_VidgenSetUserPattern	(	XDp *	InstancePtr,
		u8	Pattern
	)

This function sets user pattern.

Parameters

InstancePtr	is a pointer to the XDp instance.
Pattern	number to set with

Returns

None.

Note

None.

char xil_getc

(

u32

timeout_ms

)

This function to get uart input from user.

Parameters

timeout_ms

Returns

• received charactor

Note

None.

References TmrCtr.