PROCESSOR-SDK-DRA8X-TDA4X: How to access ISP registers?

Zs lei

Part Number: PROCESSOR-SDK-DRA8X-TDA4X

Hi,

I want to ask how to access ISP registers, especially some blocks which have not been supported by DCC 2.1, such as rawfe, EE, NF.

Could you help indicate the position in code?

Thanks.

Best regards,

Zhishen

over 5 years ago

0 Mayank Mangla over 5 years ago

TI__Mastermind 24525 points

Please look at the files in the folder tiovx/tiovx_dev/kernels_j7/hwa/vpac_viss

You can find functions like tivxVpacVissSetNsf4Config, tivxVpacVissSetRfeConfig etc.

0 Zs lei over 5 years ago in reply to Mayank Mangla

Intellectual 660 points

Hello Mayank,

Thanks for your reply. Let me ask in details.

1. I can find vpac_viss folder in \tiovx\kernels_j7\hwa\vpac_viss, not tiovx/tiovx_dev/kernels_j7/hwa/vpac_viss. Could you help check it?

2. tivxVpacVissSetRfeConfig function. I paste some codes here.

vx_status           status = (vx_status)VX_SUCCESS;
    int32_t             fvid2_status = FVID2_SOK;
    Rfe_Control         rfeCtrl;

    if (NULL != vissCfgRef->lPwlCfg)
    {
        /* PWL for Long Input */
        rfeCtrl.module = RFE_MODULE_PWL1;
        rfeCtrl.pwl1Cfg = vissCfgRef->lPwlCfg;
        fvid2_status = Fvid2_control(vissObj->handle, IOCTL_RFE_SET_CONFIG,
            (void *)&rfeCtrl, NULL);
        if (FVID2_SOK != fvid2_status)
        {
            VX_PRINT(VX_ZONE_ERROR,
                "tivxVpacVissSetRfeConfig: Failed to set PWL1 Config !!!\n");
        }

        /* Reset Pointer */
        vissCfgRef->lPwlCfg = NULL;
    }

My question is where Fvid2_control definition is?

Thanks.

Best regards,

Zhishen

0 Mayank Mangla over 5 years ago in reply to Zs lei

TI__Mastermind 24525 points

Hello Zhishen,

You are looking at the right files. Fvid2_control is a driver API. I guess you are trying to understand where IOCTL_RFE_SET_CONFIG is handled. Please refer to the file pdk\packages\ti\drv\vhwa\src\drv\vhwa_m2mVissApi.c. The function vhwa_m2mVissControl handles all the control commands from OpenVX node and updates ISP registers accordingly.

Regards,

Mayank

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PROCESSOR-SDK-DRA8X-TDA4X: How to access ISP registers?