DM385通过DVO2(VOUT0)输出PAL视频问题

你好，

DVO2可以独立与HDMI输出数字信号，DVO2没有自带video ADC，不能直接输出模拟视频。

我手上有一份资料是基于DVR RDK4.0上去掉DVO2和HDMI时序绑定的修改，你参考看看是否有帮助。

非常感谢 Chris Meng 

    首先纠正一下问题，我不是直接输出模拟视频，是要输出数字视频，分辨率为720*576 ；

需要DVO2独立输出；

  我先看看你给的参考文档，谢谢

孟工 你好：

参照你提供的文档，主要是TI814X 解绑DVO2的解释，参照该文档，我修改了以下几个地方；

1、在/mcfw/src_bios6/links_m3vpss/system/system_dctrl.c中改为
#if defined(TI_8107_BUILD)
/* Display Controller Configuration */
/* To tie DVO2 and HDCOMP together refer following Mesh */
Vps_DcConfig gSystem_dctrlTriDisplayConfig = {
VPS_DC_USERSETTINGS, /* Use Case */
/* Edge information */
{
{VPS_DC_BP0_INPUT_PATH, VPS_DC_VCOMP_MUX},
{VPS_DC_VCOMP_MUX, VPS_DC_VCOMP},
{VPS_DC_CIG_NON_CONSTRAINED_OUTPUT, VPS_DC_HDMI_BLEND},

{VPS_DC_BP1_INPUT_PATH, VPS_DC_HDCOMP_MUX},
{VPS_DC_HDCOMP_MUX, VPS_DC_CIG_PIP_INPUT},
{VPS_DC_CIG_PIP_OUTPUT, VPS_DC_DVO2_BLEND},

{VPS_DC_GRPX0_INPUT_PATH, VPS_DC_HDMI_BLEND},
{VPS_DC_GRPX1_INPUT_PATH, VPS_DC_DVO2_BLEND},

{VPS_DC_MAIN_INPUT_PATH, VPS_DC_VCOMP},
{VPS_DC_AUX_INPUT_PATH, VPS_DC_VCOMP_MUX},
},
10,
/* VENC information */
{
/* Mode information */
{
{VPS_DC_VENC_HDMI, {FVID2_STD_1080P_60}
}
, /* 1080p30 is mode
* is overwritten
* later inside
* System_displayCtrlInit
*/
{VPS_DC_VENC_HDCOMP, {FVID2_STD_1080P_60}
}, /* 1080p30 is mode
* is overwritten
* later inside
* System_displayCtrlInit
*/

{VPS_DC_VENC_SD, {FVID2_STD_NTSC}
},

{VPS_DC_VENC_DVO2, {FVID2_STD_PAL}
}

}
,
// (VPS_DC_VENC_HDMI | VPS_DC_VENC_HDCOMP), /* Tied VENC bit * mask */
0,

4u /* Number of VENCs
*/
}
};
#endif

2、在ipnc_rdk/ipnc_mcfw/mcfw/src_bios6/links_m3vpss/system/system_dctrl_modeInfo.c中

#if defined(TI_8107_BUILD)
if(System_getVencMode(pPrm->deviceParams[SYSTEM_DC_VENC_HDMI].resolution) != FVID2_STD_CUSTOM)
{
gSystem_objVpss.displayCtrlCfg.vencInfo.modeInfo[0].mInfo.standard =
System_getVencMode(pPrm->deviceParams[SYSTEM_DC_VENC_HDMI].resolution);
}
else
{
retVal = System_setVencModeInfo(0, pPrm->deviceParams[SYSTEM_DC_VENC_HDMI].resolution);
UTILS_assert(0 == retVal);
}

if(System_getVencMode(pPrm->deviceParams[SYSTEM_DC_VENC_HDCOMP].resolution) != FVID2_STD_CUSTOM)
{
gSystem_objVpss.displayCtrlCfg.vencInfo.modeInfo[1].mInfo.standard =
System_getVencMode(pPrm->deviceParams[SYSTEM_DC_VENC_HDCOMP].resolution);
}
else
{
retVal = System_setVencModeInfo(1, pPrm->deviceParams[SYSTEM_DC_VENC_HDCOMP].resolution);
UTILS_assert(0 == retVal);
}

if(System_getVencMode(pPrm->deviceParams[SYSTEM_DC_VENC_SD].resolution) != FVID2_STD_CUSTOM)
{
gSystem_objVpss.displayCtrlCfg.vencInfo.modeInfo[2].mInfo.standard =
System_getVencMode(pPrm->deviceParams[SYSTEM_DC_VENC_SD].resolution);
}
else
{
retVal = System_setVencModeInfo(2, pPrm->deviceParams[SYSTEM_DC_VENC_SD].resolution);
UTILS_assert(0 == retVal);
}
//add xiaolei

if(System_getVencMode(pPrm->deviceParams[SYSTEM_DC_VENC_DVO2].resolution) != FVID2_STD_CUSTOM)
{
gSystem_objVpss.displayCtrlCfg.vencInfo.modeInfo[3].mInfo.standard =
System_getVencMode(pPrm->deviceParams[SYSTEM_DC_VENC_DVO2].resolution);
}
else
{
retVal = System_setVencModeInfo(3, pPrm->deviceParams[SYSTEM_DC_VENC_DVO2].resolution);
UTILS_assert(0 == retVal);
}
#endif

3、在ti_mcfw_ipnc_main.c中

 vdisParams.deviceParams[VDIS_DEV_DVO2].resolution = VSYS_STD_PAL;

4、在ti_vids文件Void Vdis_params_init(VDIS_PARAMS_S * pContext)函数中

//  pContext->tiedDevicesMask = VDIS_VENC_HDMI | VDIS_VENC_DVO2;

pContext->tiedDevicesMask = 0;

pContext->enableConfigExtVideoEncoder = TRUE;

5、在 ipnc_mcfw/mcfw/src_linux/mcfw_api/usecases/multich_encode_decode.c中设置

// gVdisModuleContext.displayId[VDIS_DEV_SD] = SYSTEM_LINK_ID_DISPLAY_2;
// gVdisModuleContext.displayId[VDIS_DEV_HDMI] = SYSTEM_LINK_ID_DISPLAY_0;
gVdisModuleContext.displayId[VDIS_DEV_DVO2] = SYSTEM_LINK_ID_DISPLAY_1;

……

// HDMI DISPLAY
//displayPrm_SD.displayRes = gVdisModuleContext.vdisConfig.deviceParams[VDIS_DEV_HDMI].resolution;
//displayPrm_SD.displayId = DISPLAY_LINK_DISPLAY_SC1;

//PAL DISPLAY
// displayPrm_SD.displayRes = gVdisModuleContext.vdisConfig.deviceParams[VDIS_DEV_SD].resolution;
// displayPrm_SD.displayId = DISPLAY_LINK_DISPLAY_SD;

//LCD DISPLAY

displayPrm_SD.displayRes = gVdisModuleContext.vdisConfig.deviceParams[VDIS_DEV_DVO2].resolution;
displayPrm_SD.displayId = DISPLAY_LINK_DISPLAY_BP1;

……

以上修改后，程序报错：

[host] MCFW_IPCBITS:App_ipcBitsRecvStreamFxn:Entered...
[host] MCFW_IPCFRAMES:App_ipcFramesSendRecvFxn:Entered...
[host] Vsys_allocBuf - addr = 0x51e5b000,size = 27562
SD Inserted

[host] DCC buffer allocated for size 27562

[host] DCC Default File Intialization Done

[host] Before System_linkControl SYSTEM_M3VPSS_CMD_GET_DISPLAYCTRL_INIT
[m3vpss ] tiedVencs ##########################
mount: mounting /dev/mmcblk0 on /mnt/mmc failed: Invalid argument
[m3vpss ] VPS_DCTRL_INST_0
[m3vpss ] IOCTL_VPS_DCTRL_SET_VENC_OUTPUT SYSTEM_DC_VENC_DVO2
[m3vpss ] IOCTL_VPS_DCTRL_SET_VENC_OUTPUT SYSTEM_DC_VENC_HDMI
[m3vpss ] IOCTL_VPS_DCTRL_SET_VENC_OUTPUT SYSTEM_DC_VENC_SD
[m3vpss ] IOCTL_VPS_DCTRL_SET_VENC_OUTPUT SYSTEM_DC_VENC_HDCOMP
[m3vpss ] IOCTL_VPS_DCTRL_SET_VENC_CLK_SRC ###################
[m3vpss ] HDCOMPCLK
[m3vpss ] 2402: Assertion @ Line: 708 in links_m3vpss/system/system_dctrl.c: retVal == FVID2_SOK : failed !!!
inside autorun

另外我测试HS/VS/CLK都有信号，测试值为74.25M，30HZ

理论上VSYS_STD_PAL应该是27M才对是吧

以上配置都对吗？还是哪里没有配置？请指点指点，谢谢

你好，

一般的video dac都不需要activeid的信号，你能否确认一下? 如果不需要该信号，就不需要配置这个pinmux。

另，请查看这个硬件是否有做其他用途导致你修改pinmux后对系统产生影响？