rcons_kern.c revision 1.11
1 /* $NetBSD: rcons_kern.c,v 1.11 2000/03/20 11:24:46 pk Exp $ */ 2 3 /* 4 * Copyright (c) 1991, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)rcons_kern.c 8.1 (Berkeley) 6/11/93 45 */ 46 47 #include <sys/param.h> 48 #include <sys/device.h> 49 #include <sys/kernel.h> 50 #include <sys/systm.h> 51 #include <sys/ioctl.h> 52 #include <sys/tty.h> 53 #include <sys/proc.h> 54 55 #include <dev/rcons/raster.h> 56 #include <dev/rcons/rcons.h> 57 58 static void rcons_belltmr(void *); 59 60 static struct rconsole *mydevicep; /* XXX */ 61 static void rcons_output __P((struct tty *)); 62 63 void 64 rcons_cnputc(c) 65 int c; 66 { 67 char buf[1]; 68 long attr; 69 70 /* Swap in kernel attribute */ 71 attr = mydevicep->rc_attr; 72 mydevicep->rc_attr = mydevicep->rc_kern_attr; 73 74 if (c == '\n') 75 rcons_puts(mydevicep, "\r\n", 2); 76 else { 77 buf[0] = c; 78 rcons_puts(mydevicep, buf, 1); 79 } 80 81 /* Swap out kernel attribute */ 82 mydevicep->rc_attr = attr; 83 } 84 85 static void 86 rcons_output(tp) 87 struct tty *tp; 88 { 89 int s, n; 90 char buf[OBUFSIZ]; 91 92 s = spltty(); 93 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 94 splx(s); 95 return; 96 } 97 tp->t_state |= TS_BUSY; 98 splx(s); 99 n = q_to_b(&tp->t_outq, buf, sizeof(buf)); 100 rcons_puts(mydevicep, buf, n); 101 102 s = spltty(); 103 tp->t_state &= ~TS_BUSY; 104 /* Come back if there's more to do */ 105 if (tp->t_outq.c_cc) { 106 tp->t_state |= TS_TIMEOUT; 107 timeout(ttrstrt, tp, 1); 108 } 109 if (tp->t_outq.c_cc <= tp->t_lowat) { 110 if (tp->t_state&TS_ASLEEP) { 111 tp->t_state &= ~TS_ASLEEP; 112 wakeup((caddr_t)&tp->t_outq); 113 } 114 selwakeup(&tp->t_wsel); 115 } 116 splx(s); 117 } 118 119 /* Ring the console bell */ 120 void 121 rcons_bell(rc) 122 struct rconsole *rc; 123 { 124 int i, s; 125 126 if (rc->rc_bits & FB_VISBELL) { 127 /* invert the screen twice */ 128 i = ((rc->rc_bits & FB_INVERT) == 0); 129 rcons_invert(rc, i); 130 rcons_invert(rc, i ^ 1); 131 } 132 133 s = splhigh(); 134 if (rc->rc_belldepth++) { 135 if (rc->rc_belldepth > 3) 136 rc->rc_belldepth = 3; 137 splx(s); 138 } else { 139 rc->rc_ringing = 1; 140 splx(s); 141 (*rc->rc_bell)(1); 142 /* XXX Chris doesn't like the following divide */ 143 timeout(rcons_belltmr, rc, hz/10); 144 } 145 } 146 147 /* Bell timer service routine */ 148 static void 149 rcons_belltmr(p) 150 void *p; 151 { 152 struct rconsole *rc = p; 153 int s = splhigh(), i; 154 155 if (rc->rc_ringing) { 156 rc->rc_ringing = 0; 157 i = --rc->rc_belldepth; 158 splx(s); 159 (*rc->rc_bell)(0); 160 if (i != 0) 161 /* XXX Chris doesn't like the following divide */ 162 timeout(rcons_belltmr, rc, hz/30); 163 } else { 164 rc->rc_ringing = 1; 165 splx(s); 166 (*rc->rc_bell)(1); 167 timeout(rcons_belltmr, rc, hz/10); 168 } 169 } 170 171 void 172 rcons_init(rc, clear) 173 struct rconsole *rc; 174 int clear; 175 { 176 mydevicep = rc; 177 178 /* Initialize operations set, clear screen and turn cursor on */ 179 rcons_init_ops(rc); 180 if (clear) { 181 rc->rc_col = 0; 182 rc->rc_row = 0; 183 rcons_clear2eop(rc); 184 } 185 rcons_cursor(rc); 186 } 187 188 void 189 rcons_ttyinit(tp) 190 struct tty *tp; 191 { 192 /* XXX this should go away */ 193 struct rconsole *rc = mydevicep; 194 struct winsize *ws; 195 196 if (rc == NULL) 197 return; 198 199 /* Let the system know how big the console is */ 200 ws = &tp->t_winsize; 201 ws->ws_row = rc->rc_maxrow; 202 ws->ws_col = rc->rc_maxcol; 203 ws->ws_xpixel = rc->rc_width; 204 ws->ws_ypixel = rc->rc_height; 205 206 /* Initialization done; hook us up */ 207 tp->t_oproc = rcons_output; 208 /*tp->t_stop = (void (*)()) nullop;*/ 209 } 210
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