/* $NetBSD: rcons_kern.c,v 1.2 1995/10/04 23:57:25 pk Exp $ */ /* * Copyright (c) 1991, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)rcons_kern.c 8.1 (Berkeley) 6/11/93 */ #include #include #include #include #include #include #include #include extern struct tty *fbconstty; static void rcons_belltmr(void *); #include "rcons_subr.h" static struct rconsole *mydevicep; void rcons_cnputc(c) int c; { char buf[1]; if (c == '\n') rcons_puts(mydevicep, "\r\n", 2); else { buf[0] = c; rcons_puts(mydevicep, buf, 1); } } static void rcons_output(tp) register struct tty *tp; { register int s, n, i; char buf[OBUFSIZ]; s = spltty(); if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { splx(s); return; } tp->t_state |= TS_BUSY; splx(s); n = q_to_b(&tp->t_outq, buf, sizeof(buf)); rcons_puts(mydevicep, buf, n); s = spltty(); tp->t_state &= ~TS_BUSY; /* Come back if there's more to do */ if (tp->t_outq.c_cc) { tp->t_state |= TS_TIMEOUT; timeout(ttrstrt, tp, 1); } if (tp->t_outq.c_cc <= tp->t_lowat) { if (tp->t_state&TS_ASLEEP) { tp->t_state &= ~TS_ASLEEP; wakeup((caddr_t)&tp->t_outq); } selwakeup(&tp->t_wsel); } splx(s); } /* Ring the console bell */ void rcons_bell(rc) register struct rconsole *rc; { register int i, s; if (rc->rc_bits & FB_VISBELL) { /* invert the screen twice */ for (i = 0; i < 2; ++i) raster_op(rc->rc_sp, 0, 0, rc->rc_sp->width, rc->rc_sp->height, RAS_INVERT, (struct raster *) 0, 0, 0); } s = splhigh(); if (rc->rc_belldepth++) { if (rc->rc_belldepth > 3) rc->rc_belldepth = 3; splx(s); } else { rc->rc_ringing = 1; splx(s); (*rc->rc_bell)(1); /* XXX Chris doesn't like the following divide */ timeout(rcons_belltmr, rc, hz/10); } } /* Bell timer service routine */ static void rcons_belltmr(p) void *p; { register struct rconsole *rc = p; register int s = splhigh(), i; if (rc->rc_ringing) { rc->rc_ringing = 0; i = --rc->rc_belldepth; splx(s); (*rc->rc_bell)(0); if (i != 0) /* XXX Chris doesn't like the following divide */ timeout(rcons_belltmr, rc, hz/30); } else { rc->rc_ringing = 1; splx(s); (*rc->rc_bell)(1); timeout(rcons_belltmr, rc, hz/10); } } void rcons_init(rc) register struct rconsole *rc; { /* XXX this should go away */ static struct raster xxxraster; register struct raster *rp = rc->rc_sp = &xxxraster; register struct winsize *ws; register int i; static int row, col; mydevicep = rc; /* XXX mostly duplicates of data in other places */ rp->width = rc->rc_width; rp->height = rc->rc_height; rp->depth = rc->rc_depth; if (rc->rc_linebytes & 0x3) { printf("rcons_init: linebytes assumption botched (0x%x)\n", rc->rc_linebytes); return; } rp->linelongs = rc->rc_linebytes >> 2; rp->pixels = (u_long *)rc->rc_pixels; rc->rc_ras_blank = RAS_CLEAR; /* Impose upper bounds on rc_max{row,col} */ i = rc->rc_height / rc->rc_font->height; if (rc->rc_maxrow > i) rc->rc_maxrow = i; i = rc->rc_width / rc->rc_font->width; if (rc->rc_maxcol > i) rc->rc_maxcol = i; /* Let the system know how big the console is */ ws = &fbconstty->t_winsize; ws->ws_row = rc->rc_maxrow; ws->ws_col = rc->rc_maxcol; ws->ws_xpixel = rc->rc_width; ws->ws_ypixel = rc->rc_height; /* Center emulator screen (but align x origin to 32 bits) */ rc->rc_xorigin = ((rc->rc_width - rc->rc_maxcol * rc->rc_font->width) / 2) & ~0x1f; rc->rc_yorigin = (rc->rc_height - rc->rc_maxrow * rc->rc_font->height) / 2; /* Emulator width and height used for scrolling */ rc->rc_emuwidth = rc->rc_maxcol * rc->rc_font->width; if (rc->rc_emuwidth & 0x1f) { /* Pad to 32 bits */ i = (rc->rc_emuwidth + 0x1f) & ~0x1f; /* Make sure emulator width isn't too wide */ if (rc->rc_xorigin + i <= rc->rc_width) rc->rc_emuwidth = i; } rc->rc_emuheight = rc->rc_maxrow * rc->rc_font->height; #ifdef RASTERCONS_WONB rc->rc_ras_blank = RAS_NOT(rc->rc_ras_blank); rc->rc_bits |= FB_INVERT; #endif if (rc->rc_row == NULL || rc->rc_col == NULL) { /* * No address passed; use private copies * go to LL corner and scroll. */ rc->rc_row = &row; rc->rc_col = &col; row = rc->rc_maxrow; col = 0; #if 0 rcons_clear2eop(rc); /* clear the display */ #endif rcons_scroll(rc, 1); rcons_cursor(rc); /* and draw the initial cursor */ } else { /* Prom emulator cursor is currently visible */ rc->rc_bits |= FB_CURSOR; } /* Initialization done; hook us up */ fbconstty->t_oproc = rcons_output; /*fbconstty->t_stop = (void (*)()) nullop;*/ }