rcons_kern.c revision 1.7
1 /* $NetBSD: rcons_kern.c,v 1.7 1999/04/13 18:43:17 ad 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 extern struct tty *fbconstty; 59 60 static void rcons_belltmr(void *); 61 62 static struct rconsole *mydevicep; /* XXX */ 63 static void rcons_output __P((struct tty *)); 64 65 void 66 rcons_cnputc(c) 67 int c; 68 { 69 char buf[1]; 70 long attr; 71 72 /* Swap in kernel attribute */ 73 attr = mydevicep->rc_attr; 74 mydevicep->rc_attr = mydevicep->rc_kern_attr; 75 76 if (c == '\n') 77 rcons_puts(mydevicep, "\r\n", 2); 78 else { 79 buf[0] = c; 80 rcons_puts(mydevicep, buf, 1); 81 } 82 83 /* Swap out kernel attribute */ 84 mydevicep->rc_attr = attr; 85 } 86 87 static void 88 rcons_output(tp) 89 struct tty *tp; 90 { 91 int s, n; 92 char buf[OBUFSIZ]; 93 94 s = spltty(); 95 if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 96 splx(s); 97 return; 98 } 99 tp->t_state |= TS_BUSY; 100 splx(s); 101 n = q_to_b(&tp->t_outq, buf, sizeof(buf)); 102 rcons_puts(mydevicep, buf, n); 103 104 s = spltty(); 105 tp->t_state &= ~TS_BUSY; 106 /* Come back if there's more to do */ 107 if (tp->t_outq.c_cc) { 108 tp->t_state |= TS_TIMEOUT; 109 timeout(ttrstrt, tp, 1); 110 } 111 if (tp->t_outq.c_cc <= tp->t_lowat) { 112 if (tp->t_state&TS_ASLEEP) { 113 tp->t_state &= ~TS_ASLEEP; 114 wakeup((caddr_t)&tp->t_outq); 115 } 116 selwakeup(&tp->t_wsel); 117 } 118 splx(s); 119 } 120 121 /* Ring the console bell */ 122 void 123 rcons_bell(rc) 124 struct rconsole *rc; 125 { 126 int i, s; 127 128 if (rc->rc_bits & FB_VISBELL) { 129 /* invert the screen twice */ 130 i = ((rc->rc_bits & FB_INVERT) == 0); 131 rcons_invert(rc, i); 132 rcons_invert(rc, i ^ 1); 133 } 134 135 s = splhigh(); 136 if (rc->rc_belldepth++) { 137 if (rc->rc_belldepth > 3) 138 rc->rc_belldepth = 3; 139 splx(s); 140 } else { 141 rc->rc_ringing = 1; 142 splx(s); 143 (*rc->rc_bell)(1); 144 /* XXX Chris doesn't like the following divide */ 145 timeout(rcons_belltmr, rc, hz/10); 146 } 147 } 148 149 /* Bell timer service routine */ 150 static void 151 rcons_belltmr(p) 152 void *p; 153 { 154 struct rconsole *rc = p; 155 int s = splhigh(), i; 156 157 if (rc->rc_ringing) { 158 rc->rc_ringing = 0; 159 i = --rc->rc_belldepth; 160 splx(s); 161 (*rc->rc_bell)(0); 162 if (i != 0) 163 /* XXX Chris doesn't like the following divide */ 164 timeout(rcons_belltmr, rc, hz/30); 165 } else { 166 rc->rc_ringing = 1; 167 splx(s); 168 (*rc->rc_bell)(1); 169 timeout(rcons_belltmr, rc, hz/10); 170 } 171 } 172 173 void 174 rcons_init(rc) 175 struct rconsole *rc; 176 { 177 /* XXX this should go away */ 178 struct winsize *ws; 179 180 mydevicep = rc; 181 182 /* Let the system know how big the console is */ 183 ws = &fbconstty->t_winsize; 184 ws->ws_row = rc->rc_maxrow; 185 ws->ws_col = rc->rc_maxcol; 186 ws->ws_xpixel = rc->rc_width; 187 ws->ws_ypixel = rc->rc_height; 188 189 /* Initialize operations set, clear screen and turn cursor on */ 190 rcons_init_ops(rc); 191 rc->rc_col = 0; 192 rc->rc_row = 0; 193 rcons_clear2eop(rc); 194 rcons_cursor(rc); 195 196 /* Initialization done; hook us up */ 197 fbconstty->t_oproc = rcons_output; 198 /*fbconstty->t_stop = (void (*)()) nullop;*/ 199 } 200
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