DM6467: During auto-detection (NTSC or PAL) not getting the interrupt

Hi,

Driver does not supporting input mode detection from VPIF. It has to be supported in TVP5154. VPIF, as such, has been tested for NTSC and PAL modes with the TVP5147 decoder chip, so i don't think there is any issue on the VPIF side. Please add support of this feature in TVp5154 driver and check if it works.

Thanks,

Brijesh Jadav

Hi,

Thanks for the information.  Do you mean to set any register from TVP5154 to enable input mode detection from VPIF? 

Please let us know the register number and value for the same.

thanks & regards,

manisha

From by brief look:

It looks like you have to work with reg8Ch (Status Register #5), set the autoswitch to ON, and detect the input from the bits 1-3 (table provided in the daasheet).

So you should do a QUERY_STD and then S_STD to the appropriate to sync the VPIF appropriately.

Brijesh can add/correct me.

-Manju

Hi,

This is correct, Select autoswitch mode in "Video Standard Register (0x28)", wait for some time (around 200ms) and detected mode will be in "Status register #5 (0x8C)". Add code for this detection mechanism in quesrystd function of tvp driver. You can also check whether input is connected or not using the same method in setInput function as it is done in tvp514x driver.

In the application, call QUERYSTD ioctl and then S_STD ioctl to sync VPIF with the detected mode.

Thanks,

Brijesh Jadav

Hello,

Your post refers to a tvp5154 linux driver.  Would you please direct me to where I would I find this driver?

Thank you,

Dave Munch

Hi,

It is in LinuxKernel/drivers/media/video directory.

Thx,

Brijesh Jadav

Thanks Brijesh,

That is where the tvp5146 driver is located in my DVSDK - but there is no tvp5154 driver.  Can you tell me which sdk you are using and if it is available online?

Best regards,

dave

Hi,

TVP5154 driver is not availble in the open source kernel. you will have to write it in sub device framework.

Thanks,

Brijesh Jadav