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Hi,
I would like to create use case in Vision SDK which takes input from 3 camera and will display output on 3 LCD's , please help me.
We have already explored given examples of singlecamdualdisplay and dualcamdualdisplay but they were not helpful.
Thanks,
Hi Rajesh,
You can follow dual cam and dual display and add one more capture and display into it. What issue are you facing in it?
Regards,
Brijesh
Hi Rajesh,
This is a sample example utility to configure LCDs. You could very well change it to output on two or three LCDs using different overlay managers.
By default, VSDK uses HDMI as output device. So you see HDMI and one of the LCD as output devices. You could add support for third LCD in your display controller tree and have three LCD outputs.
Regards,
Brijesh
Hi,
Thanks for your reply and just would like to inform you that we are working on this issue since one week and we have already tried to configure second LCD and also tried adding one more LCD but none of that work and it gives assertion error and location was chains_lvdsVipDualCam_DualDisplay_priv.c.
The reason is we are not able to understand it properly, could you please guide us to add one more LCD in place of HDMI as a first step?
Thanks,
Hi Brijesh,
Thanks for your reply and as I said we are working on this issue since week and we already made changes in chains_common.c as you have suggested , please see the attached file for the function where we have made changes.
But after this changes we are getting display on second LCD only, meaning the LCD which is replaced with HDMI doesn't have display.
Int32 ChainsCommon_DualDisplay_StartDisplayCtrl(
Chains_DisplayType lcdType, UInt32 displayLCDWidth, UInt32 displayLCDHeight)
{
Int32 status;
DisplayCtrlLink_ConfigParams *pPrm = &gChains_commonObj.dctrlCfgPrms;
DisplayCtrlLink_VencInfo *pVInfo;
DisplayCtrlLink_OvlyParams *pOvlyPrms;
DisplayCtrlLink_OvlyPipeParams *pPipeOvlyPrms;
DisplayCtrlLink_OvlyParams ovlyPrms[2];
/* Set the link id */
gChains_commonObj.displayCtrlLinkId = SYSTEM_LINK_ID_DISPLAYCTRL;
/* Number of valid entries in vencInfo array */
pPrm->numVencs = 2;
/* Bitmask of tied vencs. Two vencs, which uses same pixel clock and whose vsync are synchronized, can be tied together. */
pPrm->tiedVencs = 0;
/* Activate the HDMI BSP layer in the Dctrl link. This is not required if there is no HDMI display in use. */
// pPrm->deviceId = DISPLAYCTRL_LINK_USE_HDMI;
/*
//Configure HDMI display
pVInfo = &pPrm->vencInfo[0];
pVInfo->vencId = SYSTEM_DCTRL_DSS_VENC_HDMI;
pVInfo->outputPort = SYSTEM_DCTRL_DSS_HDMI_OUTPUT;
pVInfo->vencOutputInfo.vsPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;
pVInfo->vencOutputInfo.hsPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;
//Below are of dont care for EVM LCD
pVInfo->vencOutputInfo.fidPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
pVInfo->vencOutputInfo.actVidPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;
//We use 1080p60 - set to SYSTEM_STD_720P_60 for 720p!
pVInfo->mInfo.standard = SYSTEM_STD_1080P_60;
// Configure HDMI overlay parameters
pVInfo->mode = 0;
pVInfo->isInputPipeConnected[0] = TRUE;
pVInfo->isInputPipeConnected[1] = FALSE;
pVInfo->isInputPipeConnected[2] = FALSE;
pVInfo->isInputPipeConnected[3] = TRUE;
pVInfo->writeBackEnabledFlag = FALSE;
pVInfo->vencOutputInfo.dataFormat = SYSTEM_DF_RGB24_888;
pVInfo->vencOutputInfo.dvoFormat = SYSTEM_DCTRL_DVOFMT_GENERIC_DISCSYNC;
pVInfo->vencOutputInfo.videoIfWidth = SYSTEM_VIFW_24BIT;
pVInfo->vencOutputInfo.pixelClkPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;
pVInfo->vencOutputInfo.aFmt = SYSTEM_DCTRL_A_OUTPUT_MAX;
pOvlyPrms = &ovlyPrms[0];
pOvlyPrms->vencId = pVInfo->vencId;
pOvlyPrms->deltaLinesPerPanel = 0;
pOvlyPrms->alphaBlenderEnable = 0;
pOvlyPrms->backGroundColor = 0x0;
pOvlyPrms->colorKeyEnable = 1;
pOvlyPrms->colorKeySel = SYSTEM_DSS_DISPC_TRANS_COLOR_KEY_SRC;
pOvlyPrms->ovlyOptimization = SYSTEM_DSS_DISPC_OVLY_FETCH_ALLDATA;
pOvlyPrms->transColorKey = DRAW2D_TRANSPARENT_COLOR;
*/
pVInfo = &pPrm->vencInfo[0];
pVInfo->vencId = SYSTEM_DCTRL_DSS_VENC_LCD2;
pVInfo->outputPort = SYSTEM_DCTRL_DSS_DPI2_OUTPUT;
Vps_printf("dpi port 2 is set for lcd 2 \n");
pVInfo->vencOutputInfo.vsPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
pVInfo->vencOutputInfo.hsPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
/* Below are of dont care for EVM LCD */
pVInfo->vencOutputInfo.fidPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
pVInfo->vencOutputInfo.actVidPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
pVInfo->mInfo.standard = SYSTEM_STD_CUSTOM;
pVInfo->mInfo.scanFormat = SYSTEM_SF_PROGRESSIVE;
pVInfo->mInfo.width = 800;
pVInfo->mInfo.height = 480;
//if(lcdType == CHAINS_DISPLAY_TYPE_LCD_7_INCH)
//{
pVInfo->mInfo.pixelClock = 29232u;
pVInfo->mInfo.fps = 60U;
pVInfo->mInfo.hFrontPorch = 40u;
pVInfo->mInfo.hBackPorch = 40u;
pVInfo->mInfo.hSyncLen = 48u;
pVInfo->mInfo.vFrontPorch = 13u;
pVInfo->mInfo.vBackPorch = 29u;
pVInfo->mInfo.vSyncLen = 3u;
pVInfo->vencDivisorInfo.divisorLCD = 1;
pVInfo->vencDivisorInfo.divisorPCD = 4;
//}
/* Configure LCD overlay params */
pVInfo->mode = 0;
pVInfo->isInputPipeConnected[0] = TRUE;
pVInfo->isInputPipeConnected[1] = FALSE;
pVInfo->isInputPipeConnected[2] = FALSE;
pVInfo->isInputPipeConnected[3] = TRUE;
pVInfo->writeBackEnabledFlag = FALSE;
pVInfo->vencOutputInfo.dataFormat = SYSTEM_DF_RGB16_565;
pVInfo->vencOutputInfo.dvoFormat = SYSTEM_DCTRL_DVOFMT_GENERIC_DISCSYNC;
pVInfo->vencOutputInfo.videoIfWidth = SYSTEM_VIFW_16BIT;
pVInfo->vencOutputInfo.pixelClkPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;
pVInfo->vencOutputInfo.aFmt = SYSTEM_DCTRL_A_OUTPUT_MAX;
pOvlyPrms = &ovlyPrms[0];
pOvlyPrms->vencId = pVInfo->vencId;
pOvlyPrms->deltaLinesPerPanel = 0;
pOvlyPrms->alphaBlenderEnable = 0;
pOvlyPrms->backGroundColor = 0x0;
pOvlyPrms->colorKeyEnable = 1;
pOvlyPrms->colorKeySel = SYSTEM_DSS_DISPC_TRANS_COLOR_KEY_SRC;
pOvlyPrms->ovlyOptimization = SYSTEM_DSS_DISPC_OVLY_FETCH_ALLDATA;
pOvlyPrms->transColorKey = DRAW2D_TRANSPARENT_COLOR;
/* Configure LCD */
pVInfo = &pPrm->vencInfo[1];
pVInfo->vencId = SYSTEM_DCTRL_DSS_VENC_LCD1;
pVInfo->outputPort = SYSTEM_DCTRL_DSS_DPI1_OUTPUT;
if ((BSP_PLATFORM_SOC_ID_TDA2EX == Bsp_platformGetSocId()) &&
(BSP_PLATFORM_PACKAGE_TYPE_17x17 == Bsp_platformGetPackageType()))
{
/* In case of TDA2EX and Package is 17 X 17, LCD is on DPI 3 */
pVInfo->vencId = SYSTEM_DCTRL_DSS_VENC_LCD3;
pVInfo->outputPort = SYSTEM_DCTRL_DSS_DPI3_OUTPUT;
}
pVInfo->vencOutputInfo.vsPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
pVInfo->vencOutputInfo.hsPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
/* Below are of dont care for EVM LCD */
pVInfo->vencOutputInfo.fidPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;
pVInfo->vencOutputInfo.actVidPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;
pVInfo->mInfo.standard = SYSTEM_STD_CUSTOM;
pVInfo->mInfo.scanFormat = SYSTEM_SF_PROGRESSIVE;
pVInfo->mInfo.width = displayLCDWidth;
pVInfo->mInfo.height = displayLCDHeight;
if(lcdType == CHAINS_DISPLAY_TYPE_LCD_7_INCH)
{
pVInfo->mInfo.pixelClock = 29232u;
pVInfo->mInfo.fps = 60U;
pVInfo->mInfo.hFrontPorch = 40u;
pVInfo->mInfo.hBackPorch = 40u;
pVInfo->mInfo.hSyncLen = 48u;
pVInfo->mInfo.vFrontPorch = 13u;
pVInfo->mInfo.vBackPorch = 29u;
pVInfo->mInfo.vSyncLen = 3u;
pVInfo->vencDivisorInfo.divisorLCD = 1;
pVInfo->vencDivisorInfo.divisorPCD = 4;
}
else if(lcdType == CHAINS_DISPLAY_TYPE_LCD_10_INCH)
{
pVInfo->mInfo.pixelClock = 74500U;
pVInfo->mInfo.fps = 60U;
pVInfo->mInfo.hBackPorch = 80U;
pVInfo->mInfo.hSyncLen = 62U;
pVInfo->mInfo.hFrontPorch = 48U;
pVInfo->mInfo.vBackPorch = 12U;
pVInfo->mInfo.vSyncLen = 35U;
pVInfo->mInfo.vFrontPorch = 6U;
pVInfo->vencDivisorInfo.divisorLCD = 1;
pVInfo->vencDivisorInfo.divisorPCD = 1;
}
else if (lcdType ==
CHAINS_DISPLAY_TYPE_LDC_10_INCH_LCDCTRL_TC358778_MIPI_DSI_1920_1200)
{
pVInfo->mInfo.pixelClock = 147000U;
pVInfo->mInfo.fps = 60U;
pVInfo->mInfo.hBackPorch = 30U;
pVInfo->mInfo.hSyncLen = 16U;
pVInfo->mInfo.hFrontPorch = 32U;
pVInfo->mInfo.vBackPorch = 16U;
pVInfo->mInfo.vSyncLen = 2U;
pVInfo->mInfo.vFrontPorch = 7U;
pVInfo->vencDivisorInfo.divisorLCD = 1;
pVInfo->vencDivisorInfo.divisorPCD = 1;
}
else
UTILS_assert(NULL);
/* Configure LCD overlay params */
pVInfo->mode = 0;
pVInfo->isInputPipeConnected[0] = FALSE;
pVInfo->isInputPipeConnected[1] = TRUE;
pVInfo->isInputPipeConnected[2] = TRUE;
pVInfo->isInputPipeConnected[3] = FALSE;
pVInfo->writeBackEnabledFlag = FALSE;
pVInfo->vencOutputInfo.dataFormat = SYSTEM_DF_RGB16_565;
pVInfo->vencOutputInfo.dvoFormat = SYSTEM_DCTRL_DVOFMT_GENERIC_DISCSYNC;
pVInfo->vencOutputInfo.videoIfWidth = SYSTEM_VIFW_16BIT;
pVInfo->vencOutputInfo.pixelClkPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
pVInfo->vencOutputInfo.aFmt = SYSTEM_DCTRL_A_OUTPUT_MAX;
pOvlyPrms = &ovlyPrms[1];
pOvlyPrms->vencId = pVInfo->vencId;
pOvlyPrms->deltaLinesPerPanel = 0;
pOvlyPrms->alphaBlenderEnable = 0;
pOvlyPrms->backGroundColor = 0x0;
pOvlyPrms->colorKeyEnable = 1;
pOvlyPrms->colorKeySel = SYSTEM_DSS_DISPC_TRANS_COLOR_KEY_SRC;
pOvlyPrms->ovlyOptimization = SYSTEM_DSS_DISPC_OVLY_FETCH_ALLDATA;
pOvlyPrms->transColorKey = DRAW2D_TRANSPARENT_COLOR;
/* Setting HDMI overlay pipe parameters */
pPipeOvlyPrms = &gChains_commonObj.pipeParams[0];
pPipeOvlyPrms->pipeLine = SYSTEM_DSS_DISPC_PIPE_VID1;
pPipeOvlyPrms->globalAlpha = 0xFF;
pPipeOvlyPrms->preMultiplyAlpha = 0;
pPipeOvlyPrms->zorderEnable = TRUE;
pPipeOvlyPrms->zorder = SYSTEM_DSS_DISPC_ZORDER0;
/* Setting LCD overlay pipe parameters */
pPipeOvlyPrms = &gChains_commonObj.pipeParams[1];
pPipeOvlyPrms->pipeLine = SYSTEM_DSS_DISPC_PIPE_VID2;
pPipeOvlyPrms->globalAlpha = 0xFF;
pPipeOvlyPrms->preMultiplyAlpha = 0;
pPipeOvlyPrms->zorderEnable = TRUE;
pPipeOvlyPrms->zorder = SYSTEM_DSS_DISPC_ZORDER0;
/* Setting PIP overlay pipe parameters on LCD */
pPipeOvlyPrms = &gChains_commonObj.pipeParams[2];
pPipeOvlyPrms->pipeLine = SYSTEM_DSS_DISPC_PIPE_VID3;
pPipeOvlyPrms->globalAlpha = 0xFF;
pPipeOvlyPrms->preMultiplyAlpha = 0;
pPipeOvlyPrms->zorderEnable = TRUE;
pPipeOvlyPrms->zorder = SYSTEM_DSS_DISPC_ZORDER2;
/* Configure graphics overlay for HDMI */
pPipeOvlyPrms = &gChains_commonObj.pipeParams[3];
pPipeOvlyPrms->pipeLine = SYSTEM_DSS_DISPC_PIPE_GFX1;
pPipeOvlyPrms->globalAlpha = 0xFF;
pPipeOvlyPrms->preMultiplyAlpha = 0;
pPipeOvlyPrms->zorderEnable = TRUE;
pPipeOvlyPrms->zorder = SYSTEM_DSS_DISPC_ZORDER3;
/* Create, configure and start the Display Ctrl link */
status = System_linkCreate(gChains_commonObj.displayCtrlLinkId,
NULL,
0);
UTILS_assert(status == SYSTEM_LINK_STATUS_SOK);
status = System_linkControl(gChains_commonObj.displayCtrlLinkId,
DISPLAYCTRL_LINK_CMD_SET_CONFIG,
&gChains_commonObj.dctrlCfgPrms,
sizeof(DisplayCtrlLink_ConfigParams),
TRUE);
UTILS_assert(status == SYSTEM_LINK_STATUS_SOK);
status = System_linkControl(gChains_commonObj.displayCtrlLinkId,
DISPLAYCTRL_LINK_CMD_SET_OVLY_PARAMS,
&ovlyPrms[0],
sizeof(DisplayCtrlLink_OvlyParams),
TRUE);
UTILS_assert(status == SYSTEM_LINK_STATUS_SOK);
status = System_linkControl(gChains_commonObj.displayCtrlLinkId,
DISPLAYCTRL_LINK_CMD_SET_OVLY_PARAMS,
&ovlyPrms[1],
sizeof(DisplayCtrlLink_OvlyParams),
TRUE);
UTILS_assert(status == SYSTEM_LINK_STATUS_SOK);
status = System_linkControl(gChains_commonObj.displayCtrlLinkId,
DISPLAYCTRL_LINK_CMD_SET_OVLY_PIPELINE_PARAMS,
&gChains_commonObj.pipeParams[0],
sizeof(DisplayCtrlLink_OvlyPipeParams),
TRUE);
UTILS_assert(status == SYSTEM_LINK_STATUS_SOK);
status = System_linkControl(gChains_commonObj.displayCtrlLinkId,
DISPLAYCTRL_LINK_CMD_SET_OVLY_PIPELINE_PARAMS,
&gChains_commonObj.pipeParams[1],
sizeof(DisplayCtrlLink_OvlyPipeParams),
TRUE);
UTILS_assert(status == SYSTEM_LINK_STATUS_SOK);
status = System_linkControl(gChains_commonObj.displayCtrlLinkId,
DISPLAYCTRL_LINK_CMD_SET_OVLY_PIPELINE_PARAMS,
&gChains_commonObj.pipeParams[2],
sizeof(DisplayCtrlLink_OvlyPipeParams),
TRUE);
UTILS_assert(status == SYSTEM_LINK_STATUS_SOK);
status = System_linkControl(gChains_commonObj.displayCtrlLinkId,
DISPLAYCTRL_LINK_CMD_SET_OVLY_PIPELINE_PARAMS,
&gChains_commonObj.pipeParams[3],
sizeof(DisplayCtrlLink_OvlyPipeParams),
TRUE);
UTILS_assert(status == SYSTEM_LINK_STATUS_SOK);
return status;
}