1 /* $NetBSD: ite_compat.c,v 1.6 2002/10/23 09:11:28 jdolecek Exp $ */ 2 3 /* 4 * Copyright (C) 2000 Scott Reynolds 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * The main thing to realize about this emulator is that the old console 32 * emulator was largely compatible with the DEC VT-220. Since the 33 * wsdiplay driver has a more complete emulation of that terminal, it's 34 * reasonable to pass virtually everything up to that driver without 35 * modification. 36 */ 37 38 #include "ite.h" 39 #include "wsdisplay.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/conf.h> 44 #include <sys/device.h> 45 #include <sys/ioctl.h> 46 #include <sys/ttycom.h> 47 48 #include <dev/cons.h> 49 50 #include <machine/cpu.h> 51 #include <machine/iteioctl.h> 52 53 dev_type_open(iteopen); 54 dev_type_close(iteclose); 55 dev_type_read(iteread); 56 dev_type_write(itewrite); 57 dev_type_ioctl(iteioctl); 58 dev_type_tty(itetty); 59 dev_type_poll(itepoll); 60 dev_type_kqfilter(itekqfilter); 61 62 const struct cdevsw ite_cdevsw = { 63 iteopen, iteclose, iteread, itewrite, iteioctl, 64 nostop, itetty, itepoll, nommap, itekqfilter, D_TTY 65 }; 66 67 #if NWSDISPLAY > 0 68 extern const struct cdevsw wsdisplay_cdevsw; 69 #endif 70 71 void iteattach __P((int)); 72 73 static int ite_initted = 0; 74 static int ite_bell_freq = 1880; 75 static int ite_bell_length = 10; 76 static int ite_bell_volume = 100; 77 78 79 /*ARGSUSED*/ 80 void 81 iteattach(n) 82 int n; 83 { 84 #if NWSDISPLAY > 0 85 int maj; 86 87 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 88 KASSERT(maj != -1); 89 90 if (maj != major(cn_tab->cn_dev)) 91 return; 92 93 ite_initted = 1; 94 #endif 95 } 96 97 /* 98 * Tty handling functions 99 */ 100 101 /*ARGSUSED*/ 102 int 103 iteopen(dev, mode, devtype, p) 104 dev_t dev; 105 int mode; 106 int devtype; 107 struct proc *p; 108 { 109 return ite_initted ? (0) : (ENXIO); 110 } 111 112 /*ARGSUSED*/ 113 int 114 iteclose(dev, flag, mode, p) 115 dev_t dev; 116 int flag; 117 int mode; 118 struct proc *p; 119 { 120 return ite_initted ? (0) : (ENXIO); 121 } 122 123 /*ARGSUSED*/ 124 int 125 iteread(dev, uio, flag) 126 dev_t dev; 127 struct uio *uio; 128 int flag; 129 { 130 return ite_initted ? 131 (*wsdisplay_cdevsw.d_read)(cn_tab->cn_dev, uio, flag) : (ENXIO); 132 } 133 134 /*ARGSUSED*/ 135 int 136 itewrite(dev, uio, flag) 137 dev_t dev; 138 struct uio *uio; 139 int flag; 140 { 141 return ite_initted ? 142 (*wsdisplay_cdevsw.d_write)(cn_tab->cn_dev, uio, flag) : (ENXIO); 143 } 144 145 /*ARGSUSED*/ 146 struct tty * 147 itetty(dev) 148 dev_t dev; 149 { 150 return ite_initted ? (*wsdisplay_cdevsw.d_tty)(cn_tab->cn_dev) : (NULL); 151 } 152 153 /*ARGSUSED*/ 154 int 155 iteioctl(dev, cmd, addr, flag, p) 156 dev_t dev; 157 u_long cmd; 158 caddr_t addr; 159 int flag; 160 struct proc *p; 161 { 162 if (!ite_initted) 163 return (ENXIO); 164 165 switch (cmd) { 166 case ITEIOC_RINGBELL: 167 return mac68k_ring_bell(ite_bell_freq, 168 ite_bell_length, ite_bell_volume); 169 case ITEIOC_SETBELL: 170 { 171 struct bellparams *bp = (void *)addr; 172 173 /* Do some sanity checks. */ 174 if (bp->freq < 10 || bp->freq > 40000) 175 return (EINVAL); 176 if (bp->len < 0 || bp->len > 3600) 177 return (EINVAL); 178 if (bp->vol < 0 || bp->vol > 100) 179 return (EINVAL); 180 181 ite_bell_freq = bp->freq; 182 ite_bell_length = bp->len; 183 ite_bell_volume = bp->vol; 184 return (0); 185 } 186 case ITEIOC_GETBELL: 187 { 188 struct bellparams *bp = (void *)addr; 189 190 ite_bell_freq = bp->freq; 191 ite_bell_length = bp->len; 192 ite_bell_volume = bp->vol; 193 return (0); 194 } 195 default: 196 return ((*wsdisplay_cdevsw.d_ioctl)(cn_tab->cn_dev, cmd, 197 addr, flag, p)); 198 } 199 200 return (ENOTTY); 201 } 202 203 /*ARGSUSED*/ 204 int 205 itepoll(dev, events, p) 206 dev_t dev; 207 int events; 208 struct proc *p; 209 { 210 return ite_initted ? 211 (*wsdisplay_cdevsw.d_poll)(cn_tab->cn_dev, events, p) : (ENXIO); 212 } 213 214 int 215 itekqfilter(dev, kn) 216 dev_t dev; 217 struct knote *kn; 218 { 219 return ite_initted ? 220 (*wsdisplay_cdevsw.d_kqfilter)(cn_tab->cn_dev, kn) : (ENXIO); 221 } 222