PL_PCM_ENABLED
else if (cmd & PL_PCM_ENABLED) { /* asserted SC_JOIN, scrub.completed*/
PL_PCM_ENABLED | PL_SELF_TEST | PL_EBUF_ERR;
PL_PCM_ENABLED | PL_SELF_TEST ;
PL_PCM_ENABLED | PL_SELF_TEST | PL_EBUF_ERR;