H_SWID_2PIX
if( h_sync_wid < H_SWID_2PIX( 3 ))
h_sync_wid = H_SWID_2PIX( 3 );
if( h_sync_wid > H_SWID_2PIX( RADEON_CRTC_H_SYNC_WID >> RADEON_CRTC_H_SYNC_WID_SHIFT ) )
h_sync_wid = H_SWID_2PIX( RADEON_CRTC_H_SYNC_WID >> RADEON_CRTC_H_SYNC_WID_SHIFT );
h_sync_wid = H_SWID_2PIX( H_SWID_2REG( h_sync_wid ));
h_sync_wid = H_SWID_2PIX( H_SWID_2REG( h_sync_wid ));