c04ad88a10
This patch adds examples for driver DisplayPort Receiver Subsystem Signed-off-by: Shadul Shaikh <shaduls@xilinx.com> Acked-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
290 lines
8.8 KiB
C
290 lines
8.8 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2015 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Use of the Software is limited solely to applications:
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* (a) running on a Xilinx device, or
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* (b) that interact with a Xilinx device through a bus or interconnect.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* in advertising or otherwise to promote the sale, use or other dealings in
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* this Software without prior written authorization from Xilinx.
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*
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******************************************************************************/
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/*****************************************************************************/
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/**
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*
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* @file xdprxss_debug_example.c
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*
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* This file contains a design example using the XDpRxSs driver in single stream
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* (SST) transport or multi-stream transport (MST) mode and provides DisplayPort
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* RX Subsystem debug information at runtime.
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*
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* @note For this example to display output, the user need to implement
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* initialization of the system (DpRxSs_PlatformInit), Video Phy
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* (DpRxSs_VideoPhyInit), start DisplayPort RX subsystem
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* (XDpRxSs_Start) and DisplayPort TX Subsystem setup
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* (DpTxSs_Setup).
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* The input to the Subsystem is from RX (GT).
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* The functions DpRxSs_PlatformInit, DpRxSs_VideoPhyInit and
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* DpTxSs_Setup are declared and are left up to the user to
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* implement.
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* In addition to the setups, this example requires to implement
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* required interrupts to view the output.
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*
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* <pre>
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* MODIFICATION HISTORY:
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*
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* Ver Who Date Changes
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* ---- --- -------- --------------------------------------------------
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* 1.00 sha 07/29/15 Initial release.
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* </pre>
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*
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******************************************************************************/
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/***************************** Include Files *********************************/
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#include "xdprxss.h"
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#include "xil_printf.h"
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#include "xil_types.h"
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#include "xparameters.h"
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#include "xstatus.h"
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#include "string.h"
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/************************** Constant Definitions *****************************/
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/* The unique device ID of the DisplayPort Receiver Subsystem HIP instance
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* to be used
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*/
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#define XDPRXSS_DEVICE_ID XPAR_DPRXSS_0_DEVICE_ID
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/* Example will run either in MST or SST mode based upon config parameters.
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* In MST mode, this example exposes maximum number of input and output ports
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* of DP RX that will be included while replying to sideband messages from TX.
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*/
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#define DPRXSS_LINK_RATE XDPRXSS_LINK_BW_SET_540GBPS
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#define DPRXSS_LANE_COUNT XDPRXSS_LANE_COUNT_SET_4
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/***************** Macros (Inline Functions) Definitions *********************/
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/**************************** Type Definitions *******************************/
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/************************** Function Prototypes ******************************/
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u32 DpRxSs_DebugExample(u16 DeviceId);
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u32 DpRxSs_PlatformInit(void);
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u32 DpRxSs_VideoPhyInit(void);
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u32 DpTxSs_Setup(void);
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/************************** Variable Definitions *****************************/
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XDpRxSs DpRxSsInst; /* The DPRX Subsystem instance.*/
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/************************** Function Definitions *****************************/
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/*****************************************************************************/
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/**
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*
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* This is the main function for XDpRxSs SST/MST example.
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*
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* @param None.
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*
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* @return
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* - XST_SUCCESS if the MST/SST example passed.
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* - XST_FAILURE if the MST/SST example was unsuccessful.
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*
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* @note None.
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*
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******************************************************************************/
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int main()
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{
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u32 Status;
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xil_printf("-------------------------------------------\n\r");
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xil_printf("DisplayPort RX Subsystem debug example\n\r");
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xil_printf("(c) 2015 by Xilinx\n\r");
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xil_printf("-------------------------------------------\n\r\n\r");
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Status = DpRxSs_DebugExample(XDPRXSS_DEVICE_ID);
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if (Status != XST_SUCCESS) {
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xil_printf("DisplayPort RX Subsystem debug example failed."
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"\n\r");
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return XST_FAILURE;
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}
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xil_printf("DisplayPort RX Subsystem debug example passed\n\r");
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return XST_SUCCESS;
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}
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/*****************************************************************************/
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/**
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*
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* This function is the main entry point for the debug example using the
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* XDpRxSs driver. This function will print values set during DisplayPort RX
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* Subsystem set up to work in MST/SST mode.
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*
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* @param DeviceId is the unique device ID of the DisplayPort RX
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* Subsystem core.
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*
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* @return
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* - XST_SUCCESS if DisplayPort RX Subsystem prints debug
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* information successfully.
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* - XST_FAILURE, otherwise.
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*
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* @note None.
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*
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******************************************************************************/
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u32 DpRxSs_DebugExample(u16 DeviceId)
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{
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u32 Status;
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XDpRxSs_Config *ConfigPtr;
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/* Do platform initialization in this function. This is hardware
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* system specific. It is up to the user to implement this function.
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*/
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xil_printf("PlatformInit\n\r");
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Status = DpRxSs_PlatformInit();
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if (Status != XST_SUCCESS) {
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xil_printf("Platform init failed!\n\r");
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}
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xil_printf("Platform initialization done.\n\r");
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/* Obtain the device configuration for the DisplayPort RX Subsystem */
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ConfigPtr = XDpRxSs_LookupConfig(DeviceId);
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if (!ConfigPtr) {
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return XST_FAILURE;
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}
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/* Copy the device configuration into the DpRxSsInst's Config
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* structure. */
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Status = XDpRxSs_CfgInitialize(&DpRxSsInst, ConfigPtr,
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ConfigPtr->BaseAddress);
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if (Status != XST_SUCCESS) {
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xil_printf("DPRXSS config initialization failed.\n\r");
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return XST_FAILURE;
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}
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/* Check for SST/MST support */
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if (DpRxSsInst.UsrOpt.MstSupport) {
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xil_printf("\n\rINFO:DPRXSS is MST enabled. DPRXSS can be "
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"switched to SST/MST\n\r\n\r");
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}
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else {
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xil_printf("\n\rINFO:DPRXSS is SST enabled. DPRXSS works "
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"only in SST mode.\n\r\n\r");
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}
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/* Set Link rate and lane count to maximum */
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XDpRxSs_SetLinkRate(&DpRxSsInst, DPRXSS_LINK_RATE);
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XDpRxSs_SetLaneCount(&DpRxSsInst, DPRXSS_LANE_COUNT);
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/* Start DPRXSS */
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Status = XDpRxSs_Start(&DpRxSsInst);
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if (Status != XST_SUCCESS) {
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xil_printf("ERR:DPRX SS start failed\n\r");
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return XST_FAILURE;
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}
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/* Setup Video Phy, left to the user for implementation */
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DpRxSs_VideoPhyInit();
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/* Setup DPTX SS, left to the user for implementation */
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DpTxSs_Setup();
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/* Print available sub-cores of subsystem */
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XDpRxSs_ReportCoreInfo(&DpRxSsInst);
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/* Print link info that was configured during link training */
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XDpRxSs_ReportLinkInfo(&DpRxSsInst);
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/* Print Multi-stream attributes being set during subsystem set up */
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XDpRxSs_ReportMsaInfo(&DpRxSsInst);
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return XST_SUCCESS;
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}
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/*****************************************************************************/
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/**
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*
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* This function initialize required platform specific peripherals.
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*
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* @param None.
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*
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* @return
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* - XST_SUCCESS if required peripherals are initialized and
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* configured successfully.
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* - XST_FAILURE, otherwise.
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*
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* @note None.
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*
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******************************************************************************/
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u32 DpRxSs_PlatformInit(void)
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{
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/* User is responsible to setup platform specific initialization */
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return XST_SUCCESS;
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}
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/*****************************************************************************/
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/**
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*
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* This function configures Video Phy.
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*
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* @param None.
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*
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* @return
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* - XST_SUCCESS if Video Phy configured successfully.
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* - XST_FAILURE, otherwise.
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*
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* @note None.
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*
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******************************************************************************/
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u32 DpRxSs_VideoPhyInit(void)
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{
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/* User is responsible to setup Video Phy */
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return XST_SUCCESS;
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}
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/*****************************************************************************/
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/**
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*
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* This function configures DisplayPort TX Subsystem.
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*
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* @param None.
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*
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* @return
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* - XST_SUCCESS if DPTX Subsystem configured successfully.
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* - XST_FAILURE, otherwise.
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*
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* @note None.
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*
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******************************************************************************/
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u32 DpTxSs_Setup(void)
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{
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/* User is responsible to setup Video Phy */
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return XST_SUCCESS;
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}
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