1: /* 2: * Copyright (c) 1986 Regents of the University of California. 3: * All rights reserved. The Berkeley software License Agreement 4: * specifies the terms and conditions for redistribution. 5: * 6: * @(#)dhuauto.c 1.2 (2.11BSD GTE) 12/30/92 7: */ 8: 9: #include "param.h" 10: #include "../machine/autoconfig.h" 11: #include "../machine/machparam.h" 12: #include "../pdpuba/dhvreg.h" 13: 14: dhvprobe(addr,vector) 15: struct dhvdevice *addr; 16: int vector; 17: { 18: if ( grab ( &(addr->dhvcsr) ) & DHV_CS_MCLR ) 19: DELAY(35000L); 20: if ( grab ( &(addr->dhvcsr) ) & (DHV_CS_MCLR|DHV_CS_DFAIL) ) 21: return ( 0 ); 22: stuff ( DHV_CS_RI | DHV_CS_RIE, &(addr->dhvcsr) ); 23: DELAY(3500L); 24: stuff ( 0, &(addr->dhvcsr) ); 25: return(ACP_IFINTR); 26: }