1 /* $NetBSD: ite_compat.c,v 1.10 2007/03/04 06:00:07 christos 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 1.10 2007/03/04 06:00:07 christos 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(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(int n) 85 { 86 #if NWSDISPLAY > 0 87 int maj; 88 89 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 90 KASSERT(maj != -1); 91 92 if (maj != major(cn_tab->cn_dev)) 93 return; 94 95 ite_initted = 1; 96 #endif 97 } 98 99 /* 100 * Tty handling functions 101 */ 102 103 /*ARGSUSED*/ 104 int 105 iteopen(dev_t dev, int mode, int devtype, struct lwp *l) 106 { 107 return ite_initted ? (0) : (ENXIO); 108 } 109 110 /*ARGSUSED*/ 111 int 112 iteclose(dev_t dev, int flag, int mode, struct lwp *l) 113 { 114 return ite_initted ? (0) : (ENXIO); 115 } 116 117 /*ARGSUSED*/ 118 int 119 iteread(dev_t dev, struct uio *uio, int flag) 120 { 121 return ite_initted ? 122 (*wsdisplay_cdevsw.d_read)(cn_tab->cn_dev, uio, flag) : (ENXIO); 123 } 124 125 /*ARGSUSED*/ 126 int 127 itewrite(dev_t dev, struct uio *uio, int flag) 128 { 129 return ite_initted ? 130 (*wsdisplay_cdevsw.d_write)(cn_tab->cn_dev, uio, flag) : (ENXIO); 131 } 132 133 /*ARGSUSED*/ 134 struct tty * 135 itetty(dev_t dev) 136 { 137 return ite_initted ? (*wsdisplay_cdevsw.d_tty)(cn_tab->cn_dev) : (NULL); 138 } 139 140 /*ARGSUSED*/ 141 int 142 iteioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) 143 { 144 if (!ite_initted) 145 return (ENXIO); 146 147 switch (cmd) { 148 case ITEIOC_RINGBELL: 149 return mac68k_ring_bell(ite_bell_freq, 150 ite_bell_length, ite_bell_volume); 151 case ITEIOC_SETBELL: 152 { 153 struct bellparams *bp = (void *)addr; 154 155 /* Do some sanity checks. */ 156 if (bp->freq < 10 || bp->freq > 40000) 157 return (EINVAL); 158 if (bp->len < 0 || bp->len > 3600) 159 return (EINVAL); 160 if (bp->vol < 0 || bp->vol > 100) 161 return (EINVAL); 162 163 ite_bell_freq = bp->freq; 164 ite_bell_length = bp->len; 165 ite_bell_volume = bp->vol; 166 return (0); 167 } 168 case ITEIOC_GETBELL: 169 { 170 struct bellparams *bp = (void *)addr; 171 172 ite_bell_freq = bp->freq; 173 ite_bell_length = bp->len; 174 ite_bell_volume = bp->vol; 175 return (0); 176 } 177 default: 178 return ((*wsdisplay_cdevsw.d_ioctl)(cn_tab->cn_dev, cmd, 179 addr, flag, l)); 180 } 181 182 return (ENOTTY); 183 } 184 185 /*ARGSUSED*/ 186 int 187 itepoll(dev_t dev, int events, struct lwp *l) 188 { 189 return ite_initted ? 190 (*wsdisplay_cdevsw.d_poll)(cn_tab->cn_dev, events, l) : (ENXIO); 191 } 192 193 int 194 itekqfilter(dev_t dev, struct knote *kn) 195 { 196 return ite_initted ? 197 (*wsdisplay_cdevsw.d_kqfilter)(cn_tab->cn_dev, kn) : (ENXIO); 198 } 199