1 /* $NetBSD: ite_compat.c,v 1.11 2014/03/16 05:20:24 dholland 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 1.11 2014/03/16 05:20:24 dholland 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 .d_open = iteopen, 67 .d_close = iteclose, 68 .d_read = iteread, 69 .d_write = itewrite, 70 .d_ioctl = iteioctl, 71 .d_stop = nostop, 72 .d_tty = itetty, 73 .d_poll = itepoll, 74 .d_mmap = nommap, 75 .d_kqfilter = itekqfilter, 76 .d_flag = D_TTY 77 }; 78 79 #if NWSDISPLAY > 0 80 extern const struct cdevsw wsdisplay_cdevsw; 81 #endif 82 83 void iteattach(int); 84 85 static int ite_initted = 0; 86 static int ite_bell_freq = 1880; 87 static int ite_bell_length = 10; 88 static int ite_bell_volume = 100; 89 90 91 /*ARGSUSED*/ 92 void 93 iteattach(int n) 94 { 95 #if NWSDISPLAY > 0 96 int maj; 97 98 maj = cdevsw_lookup_major(&wsdisplay_cdevsw); 99 KASSERT(maj != -1); 100 101 if (maj != major(cn_tab->cn_dev)) 102 return; 103 104 ite_initted = 1; 105 #endif 106 } 107 108 /* 109 * Tty handling functions 110 */ 111 112 /*ARGSUSED*/ 113 int 114 iteopen(dev_t dev, int mode, int devtype, struct lwp *l) 115 { 116 return ite_initted ? (0) : (ENXIO); 117 } 118 119 /*ARGSUSED*/ 120 int 121 iteclose(dev_t dev, int flag, int mode, struct lwp *l) 122 { 123 return ite_initted ? (0) : (ENXIO); 124 } 125 126 /*ARGSUSED*/ 127 int 128 iteread(dev_t dev, struct uio *uio, 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_t dev, struct uio *uio, int flag) 137 { 138 return ite_initted ? 139 (*wsdisplay_cdevsw.d_write)(cn_tab->cn_dev, uio, flag) : (ENXIO); 140 } 141 142 /*ARGSUSED*/ 143 struct tty * 144 itetty(dev_t dev) 145 { 146 return ite_initted ? (*wsdisplay_cdevsw.d_tty)(cn_tab->cn_dev) : (NULL); 147 } 148 149 /*ARGSUSED*/ 150 int 151 iteioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) 152 { 153 if (!ite_initted) 154 return (ENXIO); 155 156 switch (cmd) { 157 case ITEIOC_RINGBELL: 158 return mac68k_ring_bell(ite_bell_freq, 159 ite_bell_length, ite_bell_volume); 160 case ITEIOC_SETBELL: 161 { 162 struct bellparams *bp = (void *)addr; 163 164 /* Do some sanity checks. */ 165 if (bp->freq < 10 || bp->freq > 40000) 166 return (EINVAL); 167 if (bp->len < 0 || bp->len > 3600) 168 return (EINVAL); 169 if (bp->vol < 0 || bp->vol > 100) 170 return (EINVAL); 171 172 ite_bell_freq = bp->freq; 173 ite_bell_length = bp->len; 174 ite_bell_volume = bp->vol; 175 return (0); 176 } 177 case ITEIOC_GETBELL: 178 { 179 struct bellparams *bp = (void *)addr; 180 181 ite_bell_freq = bp->freq; 182 ite_bell_length = bp->len; 183 ite_bell_volume = bp->vol; 184 return (0); 185 } 186 default: 187 return ((*wsdisplay_cdevsw.d_ioctl)(cn_tab->cn_dev, cmd, 188 addr, flag, l)); 189 } 190 191 return (ENOTTY); 192 } 193 194 /*ARGSUSED*/ 195 int 196 itepoll(dev_t dev, int events, struct lwp *l) 197 { 198 return ite_initted ? 199 (*wsdisplay_cdevsw.d_poll)(cn_tab->cn_dev, events, l) : (ENXIO); 200 } 201 202 int 203 itekqfilter(dev_t dev, struct knote *kn) 204 { 205 return ite_initted ? 206 (*wsdisplay_cdevsw.d_kqfilter)(cn_tab->cn_dev, kn) : (ENXIO); 207 } 208