1 /* 2 * Copyright (c) 1982, 1986, 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)conf.c 8.1 (Berkeley) 06/10/93 8 */ 9 10 #include <sys/param.h> 11 #include <stand.att/saio.h> 12 13 extern int nullsys(), nodev(), noioctl(); 14 15 #ifdef BOOT 16 #define ctstrategy nullsys 17 #define ctopen nodev 18 #define ctclose nullsys 19 #else 20 int ctstrategy(), ctopen(), ctclose(); 21 #endif 22 #define ctioctl noioctl 23 24 int rdstrategy(), rdopen(); 25 #define rdioctl noioctl 26 27 int sdstrategy(), sdopen(); 28 #define sdioctl noioctl 29 30 31 struct devsw devsw[] = { 32 { "ct", ctstrategy, ctopen, ctclose, ctioctl }, /*0*/ 33 { "??", nullsys, nodev, nullsys, noioctl }, /*1*/ 34 { "rd", rdstrategy, rdopen, nullsys, rdioctl }, /*2*/ 35 { "??", nullsys, nodev, nullsys, noioctl }, /*3*/ 36 { "sd", sdstrategy, sdopen, nullsys, sdioctl }, /*4*/ 37 }; 38 39 int ndevs = (sizeof(devsw)/sizeof(devsw[0])); 40 41 /* 42 * Convert old style unit syntax into adaptor/controller/unit 43 */ 44 devconvert(io) 45 register struct iob *io; 46 { 47 if (io->i_unit == 0 || io->i_adapt || io->i_ctlr) 48 return; 49 io->i_adapt = io->i_unit / 8; 50 io->i_ctlr = io->i_unit % 8; 51 io->i_unit = 0; 52 } 53