Suggestion:S3C64XX and next-S3C MFC need IOCTL_MFC_RESET ?

[jiujin.hong@mid-fun.com (tommy)]

hi,emailist!
  
  I think S3C64XX and next-s3c MFC driver need IOCTL_MFC_RESET,because
if APP unlegal exit mfc operation or MFC met some uncorrect
h264/mpeg4/vc1/wmv9 media stream,can cause MFC inter unit become
uncorrect state,it need RESET to recover to work for next!When under
that uncorrect condition,APP must use ioctl_MFC_RESET to recover!

 i have test it ,also OK even met uncorrect stream and unlegal app file
descriptor exit !



patch may be similiar as following:

               /*For MFC RESET,when met uncorrect stram or unlegal file
descriptor exit ,for APP engineer*/
                case IOCTL_MFC_RESET:
                        MFC_Mutex_Lock();
          
                        MFC_HW_Init(); /*RESET MFC,download
firmware ,reset mfc busy flag*/

                        MFC_Mutex_Release();
                        break;


Tommy at China