dptx: MST: Added an MST example and updated existing examples.
Also added more MST comments. Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
This commit is contained in:
Andrei-Liviu Simion
Jagannadha Sutradharudu Teki
parent
3d6faf54b3
commit
16172f3743
14 changed files with 458 additions and 43 deletions
|
|
@ -1,5 +1,6 @@
|
|||
xdptx_audio_example.c=xdptx_example_common.h,xdptx_example_common.c
|
||||
xdptx_intr_example.c=xdptx_example_common.h,xdptx_example_common.c
|
||||
xdptx_mst_example.c=xdptx_example_common.h,xdptx_example_common.c
|
||||
xdptx_poll_example.c=xdptx_example_common.h,xdptx_example_common.c
|
||||
xdptx_selftest_example.c=xdptx_example_common.h,xdptx_example_common.c
|
||||
xdptx_timer_example.c=xdptx_example_common.h,xdptx_example_common.c
|
||||
|
|
|
|||
|
|
@ -12,6 +12,7 @@
|
|||
<ul>
|
||||
<li>xdptx_audio_example.c <a href="xdptx_audio_example.c">(source)</a> </li>
|
||||
<li>xdptx_intr_example.c <a href="xdptx_intr_example.c">(source)</a> </li>
|
||||
<li>xdptx_mst_example.c <a href="xdptx_mst_example.c">(source)</a> </li>
|
||||
<li>xdptx_poll_example.c <a href="xdptx_poll_example.c">(source)</a> </li>
|
||||
<li>xdptx_selftest_example.c <a href="xdptx_selftest_example.c">(source)</a> </li>
|
||||
<li>xdptx_timer_example.c <a href="xdptx_timer_example.c">(source)</a> </li>
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
There are 5 examples included in this directory:
|
||||
There are 6 examples included in this directory:
|
||||
1) xdptx_audio_example.c : This audio example, apart from training the main link
|
||||
and outputting video, illustrates the sequence required for setting up audio
|
||||
in the DisplayPort TX. This example requires that an audio source, such as a
|
||||
|
|
@ -16,10 +16,19 @@ There are 5 examples included in this directory:
|
|||
interrupt event occurs. An interrupt controller with a connection to the
|
||||
DisplayPort interrupt signal needs to exist in the hardware system.
|
||||
|
||||
3) xdptx_poll_example.c : This interrupt example shows how to poll the
|
||||
3) xdptx_mst_example.c : This multi-stream transport (MST) example shows how to
|
||||
use the driver's MST capabilities. Streams can be directed at sinks using two
|
||||
methods:
|
||||
a) After topology discover has created a sink list, streams may be assigned
|
||||
to sinks using the index in the sink list.
|
||||
b) The streams may be assigned to sinks directly without using topology
|
||||
discovery if their relative addresses (and total number of DisplayPort
|
||||
links) from the DisplayPort source is known beforehand.
|
||||
|
||||
4) xdptx_poll_example.c : This interrupt example shows how to poll the
|
||||
DisplayPort TX instance's registers for DisplayPort interrupt events.
|
||||
|
||||
4) xdptx_timer_example.c : This timer example shows how to override the default
|
||||
5) xdptx_timer_example.c : This timer example shows how to override the default
|
||||
sleep/delay functionality for MicroBlaze. A timer needs to exist in the
|
||||
hardware system and will be used for sleep/delay functionality inside of a
|
||||
callback function. The default behavior in MicroBlaze for sleep/delay is to
|
||||
|
|
@ -27,7 +36,7 @@ There are 5 examples included in this directory:
|
|||
For ARM/Zynq SoC systems, the supplied callback function will be ignored -
|
||||
the usleep function will be called since the SoC has a timer built-in.
|
||||
|
||||
5) xdptx_selftest_example.c : This self test example will perform a sanity check
|
||||
6) xdptx_selftest_example.c : This self test example will perform a sanity check
|
||||
on the state of the DisplayPort TX instance. It may be called prior to usage
|
||||
of the core or after a reset to ensure that (a subset of) the registers hold
|
||||
their default values.
|
||||
|
|
@ -42,8 +51,8 @@ Additionally, in order to be able to use the interrupt, polling, and timer
|
|||
examples, the user will need to implement and link the following functions:
|
||||
1) Dptx_InitPlatform : This function needs to do all hardware system
|
||||
initialization. This function is invoked when calling
|
||||
2) Dptx_ConfigureStreamSrc : This function needs to configure the source of the
|
||||
stream (pattern generators, video input, etc.) such that a video stream, with
|
||||
2) Dptx_StreamSrc* : These function need to configure the source of the stream
|
||||
(pattern generators, video input, etc.) such that a video stream, with
|
||||
timings and video attributes that correspond to the main stream attributes
|
||||
(MSA) configuration, is received by the DisplayPort Tx. The examples call
|
||||
this function from the Dptx_Run->Dptx_StartVideoStream functions in
|
||||
|
|
|
|||
|
|
@ -52,11 +52,11 @@
|
|||
* @note For this example to display output, after training is complete,
|
||||
* the user will need to implement configuration of the video
|
||||
* stream source in order to provide the DisplayPort core with
|
||||
* input (Dptx_ConfigureStreamSrc - called in
|
||||
* xdptx_example_common.c). See XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_ConfigureStreamSrc are
|
||||
* declared extern in xdptx_example_common.h and are left up to the
|
||||
* user to implement. The functions Dptx_ConfigureAudioSrc and
|
||||
* input (Dptx_StreamSrc* - called in xdptx_example_common.c). See
|
||||
* XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_StreamSrc* are declared
|
||||
* extern in xdptx_example_common.h and are left up to the user to
|
||||
* implement. The functions Dptx_ConfigureAudioSrc and
|
||||
* Dptx_AudioSendInfoFrame are present in this file and are also
|
||||
* left for the user to implement.
|
||||
*
|
||||
|
|
@ -131,6 +131,10 @@ u32 Dptx_AudioExample(XDptx *InstancePtr, u16 DeviceId)
|
|||
{
|
||||
u32 Status;
|
||||
|
||||
/* Use single-stream transport (SST) mode for this example. Audio is
|
||||
* not supported in multi-stream transport (MST) mode. */
|
||||
XDptx_MstCfgModeDisable(InstancePtr);
|
||||
|
||||
/* Do platform initialization here. This is hardware system specific -
|
||||
* it is up to the user to implement this function. */
|
||||
Dptx_PlatformInit();
|
||||
|
|
|
|||
|
|
@ -63,7 +63,6 @@
|
|||
|
||||
/**************************** Function Prototypes *****************************/
|
||||
|
||||
static u32 Dptx_StartLink(XDptx *InstancePtr);
|
||||
static void Dptx_StartVideoStream(XDptx *InstancePtr);
|
||||
|
||||
/**************************** Function Definitions ****************************/
|
||||
|
|
@ -155,7 +154,7 @@ u32 Dptx_SetupExample(XDptx *InstancePtr, u16 DeviceId)
|
|||
* @note None.
|
||||
*
|
||||
*******************************************************************************/
|
||||
static u32 Dptx_StartLink(XDptx *InstancePtr)
|
||||
u32 Dptx_StartLink(XDptx *InstancePtr)
|
||||
{
|
||||
u32 VsLevelTx;
|
||||
u32 PeLevelTx;
|
||||
|
|
@ -256,7 +255,7 @@ static u32 Dptx_StartLink(XDptx *InstancePtr)
|
|||
*
|
||||
* @return None.
|
||||
*
|
||||
* @note Dptx_ConfigureStreamSrc is intentionally left for the user to
|
||||
* @note The Dptx_StreamSrc* are intentionally left for the user to
|
||||
* implement since configuration of the stream source is
|
||||
* application-specific.
|
||||
* @note The Extended Display Identification Data (EDID) is read in order
|
||||
|
|
@ -270,15 +269,16 @@ static void Dptx_StartVideoStream(XDptx *InstancePtr)
|
|||
u8 AuxData[1];
|
||||
|
||||
/* Set the bits per color. If not set, the default is 6. */
|
||||
XDptx_CfgMsaSetBpc(InstancePtr, 1, 8);
|
||||
XDptx_CfgMsaSetBpc(InstancePtr, XDPTX_STREAM_ID1, 8);
|
||||
|
||||
/* Choose a method for selecting the video mode. There are 3 ways to do this:
|
||||
* 1) Use the preferred timing from the monitor's EDID:
|
||||
* XDptx_GetEdid(InstancePtr);
|
||||
* XDptx_CfgMsaUseEdidPreferredTiming(InstancePtr, 1);
|
||||
* XDptx_CfgMsaUseEdidPreferredTiming(InstancePtr, XDPTX_STREAM_ID1);
|
||||
*
|
||||
* 2) Use a standard video timing mode (see mode_table.h):
|
||||
* XDptx_CfgMsaUseStandardVideoMode(InstancePtr, 1, XDPTX_VM_640x480_60_P);
|
||||
* XDptx_CfgMsaUseStandardVideoMode(InstancePtr, XDPTX_STREAM_ID1,
|
||||
XDPTX_VM_640x480_60_P);
|
||||
*
|
||||
* 3) Use a custom configuration for the main stream attributes (MSA):
|
||||
* XDptx_MainStreamAttributes MsaConfigCustom;
|
||||
|
|
@ -293,14 +293,16 @@ static void Dptx_StartVideoStream(XDptx *InstancePtr)
|
|||
* MsaConfigCustom.Dmt.VFrontPorch = 1;
|
||||
* MsaConfigCustom.Dmt.VSyncPulseWidth = 3;
|
||||
* MsaConfigCustom.Dmt.VBackPorch = 38;
|
||||
* XDptx_CfgMsaUseCustom(InstancePtr, 1, &MsaConfigCustom, 1);
|
||||
* XDptx_CfgMsaUseCustom(InstancePtr, XDPTX_STREAM_ID1,
|
||||
* &MsaConfigCustom, 1);
|
||||
*/
|
||||
Status = XDptx_GetEdid(InstancePtr);
|
||||
if (Status == XST_SUCCESS) {
|
||||
XDptx_CfgMsaUseEdidPreferredTiming(InstancePtr, 1);
|
||||
XDptx_CfgMsaUseEdidPreferredTiming(InstancePtr,
|
||||
XDPTX_STREAM_ID1);
|
||||
}
|
||||
else {
|
||||
XDptx_CfgMsaUseStandardVideoMode(InstancePtr, 1,
|
||||
XDptx_CfgMsaUseStandardVideoMode(InstancePtr, XDPTX_STREAM_ID1,
|
||||
XDPTX_VM_640x480_60_P);
|
||||
}
|
||||
|
||||
|
|
@ -317,10 +319,16 @@ static void Dptx_StartVideoStream(XDptx *InstancePtr)
|
|||
XDPTX_SOFT_RESET_VIDEO_STREAM_ALL_MASK);
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_SOFT_RESET, 0x0);
|
||||
|
||||
/* Configure video stream source or generator here. This function needs
|
||||
/* Set the DisplayPort TX video mode. */
|
||||
XDptx_SetVideoMode(InstancePtr, XDPTX_STREAM_ID1);
|
||||
|
||||
/* Configure video stream source or generator here. These function need
|
||||
* to be implemented in order for video to be displayed and is hardware
|
||||
* system specific. It is up to the user to implement this function. */
|
||||
Dptx_ConfigureStreamSrc(InstancePtr, 1);
|
||||
* system specific. It is up to the user to implement these
|
||||
* functions. */
|
||||
Dptx_StreamSrcSetup(InstancePtr);
|
||||
Dptx_StreamSrcConfigure(InstancePtr);
|
||||
Dptx_StreamSrcSync(InstancePtr);
|
||||
/*********************************/
|
||||
|
||||
XDptx_EnableMainLink(InstancePtr);
|
||||
|
|
|
|||
|
|
@ -121,9 +121,12 @@
|
|||
/**************************** Function Prototypes *****************************/
|
||||
|
||||
extern u32 Dptx_PlatformInit(void);
|
||||
extern u32 Dptx_ConfigureStreamSrc(XDptx *InstancePtr, u8 Stream);
|
||||
extern u32 Dptx_StreamSrcSync(XDptx *InstancePtr);
|
||||
extern u32 Dptx_StreamSrcSetup(XDptx *InstancePtr);
|
||||
extern u32 Dptx_StreamSrcConfigure(XDptx *InstancePtr);
|
||||
|
||||
u32 Dptx_SetupExample(XDptx *InstancePtr, u16 DeviceId);
|
||||
u32 Dptx_StartLink(XDptx *InstancePtr);
|
||||
u32 Dptx_Run(XDptx *InstancePtr);
|
||||
|
||||
/*************************** Variable Declarations ****************************/
|
||||
|
|
|
|||
|
|
@ -44,11 +44,11 @@
|
|||
* implement initialization of the system (Dptx_PlatformInit) and,
|
||||
* after training is complete, implement configuration of the video
|
||||
* stream source in order to provide the DisplayPort core with
|
||||
* input (Dptx_ConfigureStreamSrc - called in
|
||||
* xdptx_example_common.c). See XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_ConfigureStreamSrc are
|
||||
* declared extern in xdptx_example_common.h and are left up to the
|
||||
* user to implement.
|
||||
* input (Dptx_StreamSrc* - called in xdptx_example_common.c). See
|
||||
* XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_StreamSrc* are declared
|
||||
* extern in xdptx_example_common.h and are left up to the user to
|
||||
* implement.
|
||||
*
|
||||
* <pre>
|
||||
* MODIFICATION HISTORY:
|
||||
|
|
@ -175,6 +175,9 @@ u32 Dptx_IntrExample(XDptx *InstancePtr, u16 DeviceId, INTC *IntcPtr,
|
|||
{
|
||||
u32 Status;
|
||||
|
||||
/* Use single-stream transport (SST) mode for this example. */
|
||||
XDptx_MstCfgModeDisable(InstancePtr);
|
||||
|
||||
/* Do platform initialization here. This is hardware system specific -
|
||||
* it is up to the user to implement this function. */
|
||||
Dptx_PlatformInit();
|
||||
|
|
|
|||
325
XilinxProcessorIPLib/drivers/dptx/examples/xdptx_mst_example.c
Normal file
325
XilinxProcessorIPLib/drivers/dptx/examples/xdptx_mst_example.c
Normal file
|
|
@ -0,0 +1,325 @@
|
|||
/*******************************************************************************
|
||||
*
|
||||
* Copyright (C) 2014 Xilinx, Inc. All rights reserved.
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* Use of the Software is limited solely to applications:
|
||||
* (a) running on a Xilinx device, or
|
||||
* (b) that interact with a Xilinx device through a bus or interconnect.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
|
||||
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
* SOFTWARE.
|
||||
*
|
||||
* Except as contained in this notice, the name of the Xilinx shall not be used
|
||||
* in advertising or otherwise to promote the sale, use or other dealings in
|
||||
* this Software without prior written authorization from Xilinx.
|
||||
*
|
||||
*******************************************************************************/
|
||||
/******************************************************************************/
|
||||
/**
|
||||
*
|
||||
* @file xdptx_mst_example.c
|
||||
*
|
||||
* Contains a design example using the XDptx driver in multi-stream transport
|
||||
* (MST) mode.
|
||||
*
|
||||
* @note When topology discovery is enabled, the required stack size will
|
||||
* be larger than the default that SDK sets of 0x400. Increase the
|
||||
* stack size if the ALLOCATE_FROM_SINKLIST option is used. Testing
|
||||
* was done with a stack size of 0x1000.
|
||||
* @note For this example to display output, the user will need to
|
||||
* implement initialization of the system (Dptx_PlatformInit) and,
|
||||
* after training is complete, implement configuration of the video
|
||||
* stream source in order to provide the DisplayPort core with
|
||||
* input. See XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_StreamSrc* are declared
|
||||
* extern in xdptx_example_common.h and are left up to the user to
|
||||
* implement.
|
||||
*
|
||||
* <pre>
|
||||
* MODIFICATION HISTORY:
|
||||
*
|
||||
* Ver Who Date Changes
|
||||
* ----- ---- -------- -----------------------------------------------
|
||||
* 1.00a als 08/07/14 Initial creation.
|
||||
* </pre>
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
/******************************* Include Files ********************************/
|
||||
|
||||
#include "xdptx_example_common.h"
|
||||
|
||||
/**************************** Constant Definitions ****************************/
|
||||
|
||||
/* The number of streams to enable. */
|
||||
#define NUM_STREAMS 4
|
||||
|
||||
/* This enables topology discovery which will create a list of sinks in the
|
||||
* topology. If ALLOCATE_FROM_SINKLIST is defined, the streams will sent to
|
||||
* to the sinks with the corresponding index. See the function calls for
|
||||
* the XDptx_SetStreamSelectFromSinkList driver function below. */
|
||||
#define ALLOCATE_FROM_SINKLIST
|
||||
#ifdef ALLOCATE_FROM_SINKLIST
|
||||
/* Define the mapping between sinks and streams. The sink numbers are in the
|
||||
* order that they are discovered by the XDptx_FindAccessibleDpDevices driver
|
||||
* function. */
|
||||
#define STREAM1_USE_SINKNUM 0
|
||||
#define STREAM2_USE_SINKNUM 1
|
||||
#define STREAM3_USE_SINKNUM 2
|
||||
#define STREAM4_USE_SINKNUM 3
|
||||
#endif
|
||||
|
||||
/* The video resolution from the display mode timings (DMT) table to use for
|
||||
* each stream. */
|
||||
#define USE_VIDEO_MODE XDPTX_VM_1920x1080_60_P
|
||||
|
||||
/* The color depth (bits per color component) to use for each stream. */
|
||||
#define USE_BPC 8
|
||||
|
||||
/**************************** Function Prototypes *****************************/
|
||||
|
||||
u32 Dptx_MstExample(XDptx *InstancePtr, u16 DeviceId);
|
||||
|
||||
/**************************** Function Definitions ****************************/
|
||||
|
||||
/******************************************************************************/
|
||||
/**
|
||||
* This function is the main function of the XDptx multi-stream transport (MST)
|
||||
* example.
|
||||
*
|
||||
* @param None.
|
||||
*
|
||||
* @return
|
||||
* - XST_FAILURE if the MST example was unsuccessful - system
|
||||
* setup failed.
|
||||
*
|
||||
* @note Unless setup failed, main will never return since
|
||||
* Dptx_MstExample is blocking.
|
||||
*
|
||||
*******************************************************************************/
|
||||
int main(void)
|
||||
{
|
||||
/* Run the XDptx MST example. */
|
||||
Dptx_MstExample(&DptxInstance, DPTX_DEVICE_ID);
|
||||
|
||||
return XST_FAILURE;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
/**
|
||||
* The main entry point for the multi-stream transport (MST) example using the
|
||||
* XDptx driver. This function will either discover the topology and map streams
|
||||
* to the sinks in the sink list, or map streams to relative addresses.
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance.
|
||||
* @param DeviceId is the unique device ID of the DisplayPort TX core
|
||||
* instance.
|
||||
*
|
||||
* @return
|
||||
* - XST_FAILURE if the system setup failed.
|
||||
* - XST_SUCCESS should never return since this function, if setup
|
||||
* was successful, is blocking.
|
||||
*
|
||||
* @note If system setup was successful, this function is blocking.
|
||||
*
|
||||
*******************************************************************************/
|
||||
u32 Dptx_MstExample(XDptx *InstancePtr, u16 DeviceId)
|
||||
{
|
||||
u32 Status;
|
||||
XDptx_VideoMode VideoMode = USE_VIDEO_MODE;
|
||||
u8 Bpc = USE_BPC;
|
||||
u32 MaskVal;
|
||||
|
||||
/* Enable multi-stream transport (MST) mode for this example. */
|
||||
XDptx_MstCfgModeEnable(InstancePtr);
|
||||
if (NUM_STREAMS >= 1) {
|
||||
XDptx_MstCfgStreamEnable(InstancePtr, XDPTX_STREAM_ID1);
|
||||
}
|
||||
if (NUM_STREAMS >= 2) {
|
||||
XDptx_MstCfgStreamEnable(InstancePtr, XDPTX_STREAM_ID2);
|
||||
}
|
||||
if (NUM_STREAMS >= 3) {
|
||||
XDptx_MstCfgStreamEnable(InstancePtr, XDPTX_STREAM_ID3);
|
||||
}
|
||||
if (NUM_STREAMS >= 4) {
|
||||
XDptx_MstCfgStreamEnable(InstancePtr, XDPTX_STREAM_ID4);
|
||||
}
|
||||
|
||||
/* Do platform initialization here. This is hardware system specific -
|
||||
* it is up to the user to implement this function. */
|
||||
Dptx_PlatformInit();
|
||||
/******************/
|
||||
|
||||
Status = Dptx_SetupExample(InstancePtr, DeviceId);
|
||||
if (Status != XST_SUCCESS) {
|
||||
return XST_FAILURE;
|
||||
}
|
||||
|
||||
/* A DisplayPort connection must exist at this point. See the interrupt
|
||||
* and polling examples for waiting for connection events. */
|
||||
Status = Dptx_StartLink(InstancePtr);
|
||||
if (Status != XST_SUCCESS) {
|
||||
return XST_FAILURE;
|
||||
}
|
||||
|
||||
XDptx_EnableTrainAdaptive(InstancePtr, TRAIN_ADAPTIVE);
|
||||
XDptx_SetHasRedriverInPath(InstancePtr, TRAIN_HAS_REDRIVER);
|
||||
|
||||
XDptx_CfgMsaSetBpc(InstancePtr, XDPTX_STREAM_ID1, Bpc);
|
||||
XDptx_CfgMsaSetBpc(InstancePtr, XDPTX_STREAM_ID2, Bpc);
|
||||
XDptx_CfgMsaSetBpc(InstancePtr, XDPTX_STREAM_ID3, Bpc);
|
||||
XDptx_CfgMsaSetBpc(InstancePtr, XDPTX_STREAM_ID4, Bpc);
|
||||
|
||||
Status = XDptx_GetRxCapabilities(InstancePtr);
|
||||
if (Status != XST_SUCCESS) {
|
||||
return XST_FAILURE;
|
||||
}
|
||||
|
||||
#ifndef ALLOCATE_FROM_SINKLIST
|
||||
u8 Lct;
|
||||
u8 Rad[15];
|
||||
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID1)) {
|
||||
Lct = 2; Rad[0] = 8;
|
||||
XDptx_SetStreamSinkRad(InstancePtr, XDPTX_STREAM_ID1, Lct, Rad);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID2)) {
|
||||
Lct = 3; Rad[0] = 1; Rad[1] = 8;
|
||||
XDptx_SetStreamSinkRad(InstancePtr, XDPTX_STREAM_ID2, Lct, Rad);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID3)) {
|
||||
Lct = 4; Rad[0] = 1; Rad[1] = 1; Rad[2] = 8;
|
||||
XDptx_SetStreamSinkRad(InstancePtr, XDPTX_STREAM_ID3, Lct, Rad);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID4)) {
|
||||
Lct = 4; Rad[0] = 1; Rad[1] = 1; Rad[2] = 9;
|
||||
XDptx_SetStreamSinkRad(InstancePtr, XDPTX_STREAM_ID4, Lct, Rad);
|
||||
}
|
||||
|
||||
#else
|
||||
xil_printf("Find topology >>>\n");
|
||||
InstancePtr->Topology.NodeTotal = 0;
|
||||
InstancePtr->Topology.SinkTotal = 0;
|
||||
|
||||
XDptx_FindAccessibleDpDevices(InstancePtr, 1, NULL);
|
||||
xil_printf("<<< Find topology DONE.\n");
|
||||
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID1)) {
|
||||
XDptx_SetStreamSelectFromSinkList(InstancePtr, XDPTX_STREAM_ID1,
|
||||
STREAM1_USE_SINKNUM);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID1)) {
|
||||
XDptx_SetStreamSelectFromSinkList(InstancePtr, XDPTX_STREAM_ID2,
|
||||
STREAM2_USE_SINKNUM);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID1)) {
|
||||
XDptx_SetStreamSelectFromSinkList(InstancePtr, XDPTX_STREAM_ID3,
|
||||
STREAM3_USE_SINKNUM);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID1)) {
|
||||
XDptx_SetStreamSelectFromSinkList(InstancePtr, XDPTX_STREAM_ID4,
|
||||
STREAM4_USE_SINKNUM);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Disable MST for now. */
|
||||
XDptx_MstDisable(InstancePtr);
|
||||
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID1)) {
|
||||
XDptx_CfgMsaUseStandardVideoMode(InstancePtr, XDPTX_STREAM_ID1,
|
||||
VideoMode);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID2)) {
|
||||
XDptx_CfgMsaUseStandardVideoMode(InstancePtr, XDPTX_STREAM_ID2,
|
||||
VideoMode);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID3)) {
|
||||
XDptx_CfgMsaUseStandardVideoMode(InstancePtr, XDPTX_STREAM_ID3,
|
||||
VideoMode);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID4)) {
|
||||
XDptx_CfgMsaUseStandardVideoMode(InstancePtr, XDPTX_STREAM_ID4,
|
||||
VideoMode);
|
||||
}
|
||||
|
||||
/* Disable main stream to force sending of IDLE patterns. */
|
||||
XDptx_DisableMainLink(InstancePtr);
|
||||
|
||||
/* Reset the transmitter. */
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_SOFT_RESET,
|
||||
XDPTX_SOFT_RESET_VIDEO_STREAM_ALL_MASK);
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_SOFT_RESET, 0x0);
|
||||
|
||||
/* Set the video modes for each stream. */
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID1)) {
|
||||
XDptx_SetVideoMode(InstancePtr, XDPTX_STREAM_ID1);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID2)) {
|
||||
XDptx_SetVideoMode(InstancePtr, XDPTX_STREAM_ID2);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID3)) {
|
||||
XDptx_SetVideoMode(InstancePtr, XDPTX_STREAM_ID3);
|
||||
}
|
||||
if (XDptx_MstStreamIsEnabled(InstancePtr, XDPTX_STREAM_ID4)) {
|
||||
XDptx_SetVideoMode(InstancePtr, XDPTX_STREAM_ID4);
|
||||
}
|
||||
|
||||
/* Configure video stream source or generator here. This function needs
|
||||
* to be implemented in order for video to be displayed and is hardware
|
||||
* system specific. It is up to the user to implement this function. */
|
||||
Dptx_StreamSrcSetup(InstancePtr);
|
||||
Dptx_StreamSrcConfigure(InstancePtr);
|
||||
Dptx_StreamSrcSync(InstancePtr);
|
||||
////////////////////////////////////
|
||||
|
||||
/* Reset the transmitter. */
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_SOFT_RESET,
|
||||
XDPTX_SOFT_RESET_VIDEO_STREAM_ALL_MASK);
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_SOFT_RESET, 0x0);
|
||||
|
||||
/* Mask interrupts while allocating payloads. */
|
||||
MaskVal = XDptx_ReadReg(InstancePtr->Config.BaseAddr,
|
||||
XDPTX_INTERRUPT_MASK);
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_INTERRUPT_MASK,
|
||||
0x3F);
|
||||
|
||||
/* Allocate payloads. */
|
||||
XDptx_MstEnable(InstancePtr);
|
||||
XDptx_AllocatePayloadStreams(InstancePtr);
|
||||
|
||||
/* Reset the transmitter. */
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_SOFT_RESET,
|
||||
XDPTX_SOFT_RESET_VIDEO_STREAM_ALL_MASK);
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_SOFT_RESET, 0x0);
|
||||
|
||||
/* Sync the stream source to the DisplayPort TX if needed. */
|
||||
Dptx_StreamSrcSync(InstancePtr);
|
||||
////////////////////////////////////
|
||||
|
||||
/* Enable the main link. */
|
||||
XDptx_EnableMainLink(InstancePtr);
|
||||
|
||||
/* Unmask interrupts. */
|
||||
XDptx_WriteReg(InstancePtr->Config.BaseAddr, XDPTX_INTERRUPT_MASK,
|
||||
MaskVal);
|
||||
|
||||
/* Do not return. */
|
||||
while (1);
|
||||
|
||||
return XST_SUCCESS;
|
||||
}
|
||||
|
|
@ -42,11 +42,11 @@
|
|||
* implement initialization of the system (Dptx_PlatformInit) and,
|
||||
* after training is complete, implement configuration of the video
|
||||
* stream source in order to provide the DisplayPort core with
|
||||
* input (Dptx_ConfigureStreamSrc - called in
|
||||
* xdptx_example_common.c). See XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_ConfigureStreamSrc are
|
||||
* declared extern in xdptx_example_common.h and are left up to the
|
||||
* user to implement.
|
||||
* input (Dptx_StreamSrc* - called in xdptx_example_common.c). See
|
||||
* XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_StreamSrc* are declared
|
||||
* extern in xdptx_example_common.h and are left up to the user to
|
||||
* implement.
|
||||
*
|
||||
* <pre>
|
||||
* MODIFICATION HISTORY:
|
||||
|
|
|
|||
|
|
@ -45,11 +45,11 @@
|
|||
* implement initialization of the system (Dptx_PlatformInit) and,
|
||||
* after training is complete, implement configuration of the video
|
||||
* stream source in order to provide the DisplayPort core with
|
||||
* input (Dptx_ConfigureStreamSrc - called in
|
||||
* xdptx_example_common.c). See XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_ConfigureStreamSrc are
|
||||
* declared extern in xdptx_example_common.h and are left up to the
|
||||
* user to implement.
|
||||
* input (Dptx_StreamSrc* - called in xdptx_example_common.c). See
|
||||
* XAPP1178 for reference.
|
||||
* @note The functions Dptx_PlatformInit and Dptx_StreamSrc* are declared
|
||||
* extern in xdptx_example_common.h and are left up to the user to
|
||||
* implement.
|
||||
*
|
||||
* <pre>
|
||||
* MODIFICATION HISTORY:
|
||||
|
|
@ -131,6 +131,9 @@ u32 Dptx_TimerExample(XDptx *InstancePtr, u16 DeviceId,
|
|||
{
|
||||
u32 Status;
|
||||
|
||||
/* Use single-stream transport (SST) mode for this example. */
|
||||
XDptx_MstCfgModeDisable(InstancePtr);
|
||||
|
||||
/* Do platform initialization here. This is hardware system specific -
|
||||
* it is up to the user to implement this function. */
|
||||
Dptx_PlatformInit();
|
||||
|
|
|
|||
|
|
@ -137,6 +137,19 @@
|
|||
* function and, for the HPD pulse handler, the XDptx_SetHpdPulseHandler
|
||||
* function.
|
||||
*
|
||||
* <b>Multi-stream transport (MST) mode</b>
|
||||
*
|
||||
* The driver handles MST mode functionality, including sideband messaging,
|
||||
* topology discovery, virtual channel payload ID table management, and
|
||||
* directing streams to different sinks.
|
||||
*
|
||||
* MST testing has been done at 5.40Gbps per 4 lanes, with 4 sinks in a daisy-
|
||||
* chain configuration, with each stream having the same resolution. Extensive
|
||||
* testing has been done at resolutions of 1080p for each of 1 to 4 streams and
|
||||
* UHD/2 for each of 1 or 2 streams. Other resolutions have been tested as well,
|
||||
* however with the current version of the driver, some monitors required a
|
||||
* power cycle for all streams to come up.
|
||||
*
|
||||
* <b>Audio</b>
|
||||
*
|
||||
* The driver does not handle audio. For an example as to how to configure and
|
||||
|
|
@ -153,8 +166,24 @@
|
|||
* it is recommended that application developers leave asserts on during
|
||||
* development.
|
||||
*
|
||||
* <b>Limitations</b>
|
||||
* <b>Limitations and known issues</b>
|
||||
*
|
||||
* - For MST mode to correctly display, the current version of the driver
|
||||
* requires that each of the DisplayPort TX streams be allocated without
|
||||
* skipping streams (i.e. assign stream 1, stream 2, and stream 3 - problems
|
||||
* were experienced if skipping stream 2 and assigning stream 4 instead).
|
||||
* skipping monitors in a daisy chain is OK as long as they are assigned to
|
||||
* streams in order.
|
||||
* - In MST mode, the current version of the driver does not support removal of
|
||||
* an allocated stream from the virtual channel payload ID table without
|
||||
* clearing the entire table.
|
||||
* - Some sideband messages have not been implemented in the current version of
|
||||
* the driver for MST mode. Notable, reception of a CONNECTION_STATUS_NOTIFY
|
||||
* sideband message.
|
||||
* - Some monitors required a power cycle for all streams to come up at certain
|
||||
* resolutions (outside of the 1080p and UHD/2 resolutions) during testing.
|
||||
* Different resolutions for different streams were not tested. This will be
|
||||
* investigated for the next SDK release.
|
||||
* - The driver does not handle audio. See the audio example in the driver
|
||||
* examples directory for the required sequence for enabling audio.
|
||||
*
|
||||
|
|
@ -167,6 +196,7 @@
|
|||
* Ver Who Date Changes
|
||||
* ----- ---- -------- -----------------------------------------------
|
||||
* 1.00a als 05/17/14 Initial release.
|
||||
* als 08/03/14 Initial MST addition.
|
||||
* </pre>
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
|
|
|||
|
|
@ -46,6 +46,7 @@
|
|||
* Ver Who Date Changes
|
||||
* ----- ---- -------- -----------------------------------------------
|
||||
* 1.00a als 05/17/14 Initial release.
|
||||
* als 08/03/14 Initial MST addition.
|
||||
* </pre>
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
|
|
|||
|
|
@ -878,9 +878,9 @@ u32 XDptx_ClearPayloadVcIdTable(XDptx *InstancePtr)
|
|||
* source to the target DisplayPort device.
|
||||
* @param DpcdAddress is the DPCD address of the target device that data
|
||||
* will be written to.
|
||||
* @param BytesToRead is the number of bytes to write to the specified
|
||||
* @param BytesToWrite is the number of bytes to write to the specified
|
||||
* DPCD address.
|
||||
* @param ReadData is a pointer to a buffer that stores the data to write
|
||||
* @param WriteData is a pointer to a buffer that stores the data to write
|
||||
* to the DPCD location.
|
||||
*
|
||||
* @return
|
||||
|
|
|
|||
|
|
@ -93,6 +93,8 @@ static void XDptx_CalculateTs(XDptx *InstancePtr, u8 Stream, u8 BitsPerPixel);
|
|||
* - Vertical back porch
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance.
|
||||
* @param Stream is the stream number for which to calculate the MSA
|
||||
* values.
|
||||
*
|
||||
* @return None.
|
||||
*
|
||||
|
|
@ -253,6 +255,8 @@ void XDptx_CfgMsaRecalculate(XDptx *InstancePtr, u8 Stream)
|
|||
* XDptx_VideoMode enumeration in xdptx.h lists the available video modes.
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance.
|
||||
* @param Stream is the stream number for which the MSA values will be
|
||||
* used for.
|
||||
* @param VideoMode is one of the enumerated standard video modes that is
|
||||
* used to determine the MSA values to be used.
|
||||
*
|
||||
|
|
@ -300,6 +304,8 @@ void XDptx_CfgMsaUseStandardVideoMode(XDptx *InstancePtr, u8 Stream,
|
|||
* Identification Data (EDID).
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance
|
||||
* @param Stream is the stream number for which the MSA values will be
|
||||
* used for.
|
||||
*
|
||||
* @return None.
|
||||
*
|
||||
|
|
@ -385,7 +391,7 @@ void XDptx_CfgMsaUseEdidPreferredTiming(XDptx *InstancePtr, u8 Stream)
|
|||
* This function takes a the main stream attributes from MsaConfigCustom and
|
||||
* copies them into InstancePtr->MsaConfig. If desired, given a base set of
|
||||
* attributes, the rest of the attributes may be derived. The minimal required
|
||||
* main stream attributes that must be contained in the MsaConfigCustom
|
||||
* main stream attributes (MSA) that must be contained in the MsaConfigCustom
|
||||
* structure are:
|
||||
* - Pixel clock (in KHz)
|
||||
* - Horizontal sync polarity
|
||||
|
|
@ -400,6 +406,8 @@ void XDptx_CfgMsaUseEdidPreferredTiming(XDptx *InstancePtr, u8 Stream)
|
|||
* - Horizontal front porch
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance.
|
||||
* @param Stream is the stream number for which the MSA values will be
|
||||
* used for.
|
||||
* @param MsaConfigCustom is the structure that will be used to copy the
|
||||
* main stream attributes from (into InstancePtr->MsaConfig).
|
||||
* @param Recalculate is a boolean enable that determines whether or not
|
||||
|
|
@ -461,6 +469,7 @@ void XDptx_CfgMsaUseCustom(XDptx *InstancePtr, u8 Stream,
|
|||
* This function sets the bits per color value of the video stream.
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance
|
||||
* @param Stream is the stream number for which to set the color depth.
|
||||
* @param BitsPerColor is the new number of bits per color to use.
|
||||
*
|
||||
* @return None.
|
||||
|
|
@ -484,6 +493,21 @@ void XDptx_CfgMsaSetBpc(XDptx *InstancePtr, u8 Stream, u8 BitsPerColor)
|
|||
XDptx_CfgMsaRecalculate(InstancePtr, Stream);
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
/**
|
||||
* This function enables or disables synchronous clock mode for a video stream.
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance
|
||||
* @param Stream is the stream number for which to enable or disable
|
||||
* synchronous clock mode.
|
||||
* @param Enable if set to 1, will enable synchronous clock mode.
|
||||
* Otherwise, if set to 0, synchronous clock mode will be disabled.
|
||||
*
|
||||
* @return None.
|
||||
*
|
||||
* @note None.
|
||||
*
|
||||
*******************************************************************************/
|
||||
void XDptx_CfgMsaEnSynchClkMode(XDptx *InstancePtr, u8 Stream, u8 Enable)
|
||||
{
|
||||
XDptx_MainStreamAttributes *MsaConfig =
|
||||
|
|
@ -512,6 +536,7 @@ void XDptx_CfgMsaEnSynchClkMode(XDptx *InstancePtr, u8 Stream, u8 Enable)
|
|||
* configuration structure.
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance
|
||||
* @param Stream is the stream number for which to set the MSA values for.
|
||||
*
|
||||
* @return None.
|
||||
*
|
||||
|
|
@ -535,6 +560,7 @@ void XDptx_SetVideoMode(XDptx *InstancePtr, u8 Stream)
|
|||
* TX core.
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance.
|
||||
* @param Stream is the stream number for which to clear the MSA values.
|
||||
*
|
||||
* @return None.
|
||||
*
|
||||
|
|
@ -596,6 +622,7 @@ void XDptx_ClearMsaValues(XDptx *InstancePtr, u8 Stream)
|
|||
* structure.
|
||||
*
|
||||
* @param InstancePtr is a pointer to the XDptx instance.
|
||||
* @param Stream is the stream number for which to set the MSA values for.
|
||||
*
|
||||
* @return None.
|
||||
*
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue