152118Smckusick /* 252118Smckusick * Copyright (c) 1988 University of Utah. 352118Smckusick * Copyright (c) 1992 The Regents of the University of California. 452118Smckusick * All rights reserved. 552118Smckusick * 652118Smckusick * This code is derived from software contributed to Berkeley by 752118Smckusick * the Systems Programming Group of the University of Utah Computer 852118Smckusick * Science Department and Ralph Campbell. 952118Smckusick * 1052118Smckusick * %sccs.include.redist.c% 1152118Smckusick * 1252118Smckusick * from: Utah $Hdr: cons.c 1.1 90/07/09$ 1352118Smckusick * 14*56828Sralph * @(#)cons.c 7.5 (Berkeley) 11/15/92 1552118Smckusick */ 1652118Smckusick 1756524Sbostic #include <sys/param.h> 1856524Sbostic #include <sys/proc.h> 1956524Sbostic #include <sys/systm.h> 2056524Sbostic #include <sys/buf.h> 2156524Sbostic #include <sys/ioctl.h> 2256524Sbostic #include <sys/tty.h> 2356524Sbostic #include <sys/file.h> 2456524Sbostic #include <sys/conf.h> 2552118Smckusick 26*56828Sralph #include <pmax/stand/dec_prom.h> 2752118Smckusick 2852118Smckusick /* 29*56828Sralph * Console I/O is redirected to the appropriate device, either a screen and 30*56828Sralph * keyboard or a serial port. 3152118Smckusick */ 32*56828Sralph #include <pmax/pmax/cons.h> 3352118Smckusick 34*56828Sralph struct consdev cn_tab = { 35*56828Sralph 1, 36*56828Sralph 1, 37*56828Sralph NODEV, 38*56828Sralph (struct pmax_fb *)0, 39*56828Sralph (int (*)())0, 40*56828Sralph (int (*)())0, 41*56828Sralph (void (*)())0, 42*56828Sralph (struct tty *)0, 43*56828Sralph }; 44*56828Sralph 45*56828Sralph cnopen(dev, flag, mode, p) 46*56828Sralph dev_t dev; 47*56828Sralph int flag, mode; 48*56828Sralph struct proc *p; 49*56828Sralph { 50*56828Sralph if (cn_tab.cn_dev == NODEV) 51*56828Sralph return (0); 52*56828Sralph dev = cn_tab.cn_dev; 53*56828Sralph return ((*cdevsw[major(dev)].d_open)(dev, flag, mode, p)); 54*56828Sralph } 55*56828Sralph 56*56828Sralph cnclose(dev, flag, mode, p) 57*56828Sralph dev_t dev; 58*56828Sralph int flag, mode; 59*56828Sralph struct proc *p; 60*56828Sralph { 61*56828Sralph if (cn_tab.cn_dev == NODEV) 62*56828Sralph return (0); 63*56828Sralph dev = cn_tab.cn_dev; 64*56828Sralph return ((*cdevsw[major(dev)].d_close)(dev, flag, mode, p)); 65*56828Sralph } 66*56828Sralph 67*56828Sralph cnread(dev, uio, flag) 68*56828Sralph dev_t dev; 69*56828Sralph struct uio *uio; 70*56828Sralph { 71*56828Sralph if (cn_tab.cn_dev == NODEV) 72*56828Sralph return (0); 73*56828Sralph dev = cn_tab.cn_dev; 74*56828Sralph return ((*cdevsw[major(dev)].d_read)(dev, uio, flag)); 75*56828Sralph } 76*56828Sralph 77*56828Sralph cnwrite(dev, uio, flag) 78*56828Sralph dev_t dev; 79*56828Sralph struct uio *uio; 80*56828Sralph { 81*56828Sralph if (cn_tab.cn_dev == NODEV) 82*56828Sralph return (0); 83*56828Sralph dev = cn_tab.cn_dev; 84*56828Sralph return ((*cdevsw[major(dev)].d_write)(dev, uio, flag)); 85*56828Sralph } 86*56828Sralph 87*56828Sralph cnioctl(dev, cmd, data, flag, p) 88*56828Sralph dev_t dev; 89*56828Sralph caddr_t data; 90*56828Sralph struct proc *p; 91*56828Sralph { 92*56828Sralph int error; 93*56828Sralph 94*56828Sralph if (cn_tab.cn_dev == NODEV) 95*56828Sralph return (0); 96*56828Sralph dev = cn_tab.cn_dev; 97*56828Sralph return ((*cdevsw[major(dev)].d_ioctl)(dev, cmd, data, flag, p)); 98*56828Sralph } 99*56828Sralph 100*56828Sralph /*ARGSUSED*/ 101*56828Sralph cnselect(dev, rw, p) 102*56828Sralph dev_t dev; 103*56828Sralph int rw; 104*56828Sralph struct proc *p; 105*56828Sralph { 106*56828Sralph if (cn_tab.cn_dev == NODEV) 107*56828Sralph return (1); 108*56828Sralph return (ttselect(cn_tab.cn_dev, rw, p)); 109*56828Sralph } 110*56828Sralph 11152118Smckusick /* 11252118Smckusick * Get character from console. 11352118Smckusick */ 11452118Smckusick cngetc() 11552118Smckusick { 11652118Smckusick 11752701Sralph /* check to be sure device has been initialized */ 118*56828Sralph if (cn_tab.cn_dev == NODEV || cn_tab.cn_disabled) 119*56828Sralph return ((*callv->getchar)()); 120*56828Sralph return ((*cn_tab.cn_getc)(cn_tab.cn_dev)); 12152118Smckusick } 12252118Smckusick 12352118Smckusick /* 12452118Smckusick * Print a character on console. 12552118Smckusick */ 12652118Smckusick cnputc(c) 12752118Smckusick register int c; 12852118Smckusick { 12952118Smckusick int s; 13052118Smckusick 131*56828Sralph if (cn_tab.cn_dev == NODEV || cn_tab.cn_disabled) { 132*56828Sralph s = splhigh(); 133*56828Sralph (*callv->printf)("%c", c); 134*56828Sralph splx(s); 135*56828Sralph } else if (c) { 136*56828Sralph if (c == '\n') 137*56828Sralph (*cn_tab.cn_putc)(cn_tab.cn_dev, '\r'); 138*56828Sralph (*cn_tab.cn_putc)(cn_tab.cn_dev, c); 139*56828Sralph } 14052118Smckusick } 141