ite_compat.c revision 1.7
1 /* $NetBSD: ite_compat.c,v 1.7 2003/07/15 02:43:17 lukem 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 <sys/cdefs.h> 39 __KERNEL_RCSID(0, "$NetBSD: ite_compat.c,v 1.7 2003/07/15 02:43:17 lukem Exp $"); 40 41 #include "ite.h" 42 #include "wsdisplay.h" 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/conf.h> 47 #include <sys/device.h> 48 #include <sys/ioctl.h> 49 #include <sys/ttycom.h> 50 51 #include <dev/cons.h> 52 53 #include <machine/cpu.h> 54 #include <machine/iteioctl.h> 55 56 dev_type_open(iteopen); 57 dev_type_close(iteclose); 58 dev_type_read(iteread); 59 dev_type_write(itewrite); 60 dev_type_ioctl(iteioctl); 61 dev_type_tty(itetty); 62 dev_type_poll(itepoll); 63 dev_type_kqfilter(itekqfilter); 64 65 const struct cdevsw ite_cdevsw = { 66 iteopen, iteclose, iteread, itewrite, iteioctl, 67 nostop, itetty, itepoll, nommap, itekqfilter, D_TTY 68 }; 69 70 #if NWSDISPLAY > 0 71 extern const struct cdevsw wsdisplay_cdevsw; 72 #endif 73 74 void iteattach __P((int)); 75 76 static int ite_initted = 0; 77 static int ite_bell_freq = 1880; 78 static int ite_bell_length = 10; 79 static int ite_bell_volume = 100; 80 81 82 /*ARGSUSED*/ 83 void 84 iteattach(n) 85 int n; 86 { 87 #if NWSDISPLAY > 0 88 int maj; 89 90 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 91 KASSERT(maj != -1); 92 93 if (maj != major(cn_tab->cn_dev)) 94 return; 95 96 ite_initted = 1; 97 #endif 98 } 99 100 /* 101 * Tty handling functions 102 */ 103 104 /*ARGSUSED*/ 105 int 106 iteopen(dev, mode, devtype, p) 107 dev_t dev; 108 int mode; 109 int devtype; 110 struct proc *p; 111 { 112 return ite_initted ? (0) : (ENXIO); 113 } 114 115 /*ARGSUSED*/ 116 int 117 iteclose(dev, flag, mode, p) 118 dev_t dev; 119 int flag; 120 int mode; 121 struct proc *p; 122 { 123 return ite_initted ? (0) : (ENXIO); 124 } 125 126 /*ARGSUSED*/ 127 int 128 iteread(dev, uio, flag) 129 dev_t dev; 130 struct uio *uio; 131 int flag; 132 { 133 return ite_initted ? 134 (*wsdisplay_cdevsw.d_read)(cn_tab->cn_dev, uio, flag) : (ENXIO); 135 } 136 137 /*ARGSUSED*/ 138 int 139 itewrite(dev, uio, flag) 140 dev_t dev; 141 struct uio *uio; 142 int flag; 143 { 144 return ite_initted ? 145 (*wsdisplay_cdevsw.d_write)(cn_tab->cn_dev, uio, flag) : (ENXIO); 146 } 147 148 /*ARGSUSED*/ 149 struct tty * 150 itetty(dev) 151 dev_t dev; 152 { 153 return ite_initted ? (*wsdisplay_cdevsw.d_tty)(cn_tab->cn_dev) : (NULL); 154 } 155 156 /*ARGSUSED*/ 157 int 158 iteioctl(dev, cmd, addr, flag, p) 159 dev_t dev; 160 u_long cmd; 161 caddr_t addr; 162 int flag; 163 struct proc *p; 164 { 165 if (!ite_initted) 166 return (ENXIO); 167 168 switch (cmd) { 169 case ITEIOC_RINGBELL: 170 return mac68k_ring_bell(ite_bell_freq, 171 ite_bell_length, ite_bell_volume); 172 case ITEIOC_SETBELL: 173 { 174 struct bellparams *bp = (void *)addr; 175 176 /* Do some sanity checks. */ 177 if (bp->freq < 10 || bp->freq > 40000) 178 return (EINVAL); 179 if (bp->len < 0 || bp->len > 3600) 180 return (EINVAL); 181 if (bp->vol < 0 || bp->vol > 100) 182 return (EINVAL); 183 184 ite_bell_freq = bp->freq; 185 ite_bell_length = bp->len; 186 ite_bell_volume = bp->vol; 187 return (0); 188 } 189 case ITEIOC_GETBELL: 190 { 191 struct bellparams *bp = (void *)addr; 192 193 ite_bell_freq = bp->freq; 194 ite_bell_length = bp->len; 195 ite_bell_volume = bp->vol; 196 return (0); 197 } 198 default: 199 return ((*wsdisplay_cdevsw.d_ioctl)(cn_tab->cn_dev, cmd, 200 addr, flag, p)); 201 } 202 203 return (ENOTTY); 204 } 205 206 /*ARGSUSED*/ 207 int 208 itepoll(dev, events, p) 209 dev_t dev; 210 int events; 211 struct proc *p; 212 { 213 return ite_initted ? 214 (*wsdisplay_cdevsw.d_poll)(cn_tab->cn_dev, events, p) : (ENXIO); 215 } 216 217 int 218 itekqfilter(dev, kn) 219 dev_t dev; 220 struct knote *kn; 221 { 222 return ite_initted ? 223 (*wsdisplay_cdevsw.d_kqfilter)(cn_tab->cn_dev, kn) : (ENXIO); 224 } 225
Indexes created Sat Nov 01 05:10:12 GMT 2025