DisplayPort Intel® FPGA IP User Guide

ID 683273
Date 4/29/2022
Public

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9.22. btc_dprx_mst_conn_stat_notify_rep

Prototype:

int btc_dprx_mst_conn_stat_notify_rep ( 
   BYTE rx_idx,
   BYTE *GUID, 
   BYTE *reas_for_nak, 
   BYTE *nak_data)

Thread-safe:

No

Available from ISR:

No

Include:

< btc_dprx_syslib.h >

Return:

0 = ACK, 1 = NAK, 2 = not ready

Parameters:

  • rx_idx—RX instance index (0 - 3)
  • GUID—For NAK replies, GUID originating the NAK
  • reas_for_nak—For NAK replies, reason_for_nak (pointer to 1 byte)
  • nak_data—For NAK replies, nak_data (pointer to 1 byte)

Description:

This function returns the connected Upstream DisplayPort source reply to the last issued CONNECTION_STATUS_NOTIFY UP_REQUEST MST node broadcast sideband message. Call this function until either ACK or NACK is returned. ‘2’ is returned when the reply has not yet been received.

Example: btc_dprx_mst_conn_stat_notify_rep(0, p_GUID, p_rfn, p_nd);