84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
399 lines
8.2 KiB
C
399 lines
8.2 KiB
C
/* $NetBSD: pcio.c,v 1.30 2011/06/08 16:04:40 joerg Exp $ */
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/*
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* Copyright (c) 1996, 1997
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* Matthias Drochner. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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* console I/O
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* needs lowlevel routines from conio.S and comio.S
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*/
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#include <lib/libsa/stand.h>
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#include <lib/libkern/libkern.h>
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#include <sys/bootblock.h>
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#include "libi386.h"
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#include "bootinfo.h"
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extern struct x86_boot_params boot_params;
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struct btinfo_console btinfo_console;
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#ifdef SUPPORT_SERIAL
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static int iodev;
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#ifdef DIRECT_SERIAL
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#include "comio_direct.h"
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#define cominit_x() btinfo_console.speed = \
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cominit_d(btinfo_console.addr, btinfo_console.speed)
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#define computc_x(ch) computc_d(ch, btinfo_console.addr)
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#define comgetc_x() comgetc_d(btinfo_console.addr)
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#define comstatus_x() comstatus_d(btinfo_console.addr)
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#else
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#define cominit_x() cominit(iodev - CONSDEV_COM0)
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#define computc_x(ch) computc(ch, iodev - CONSDEV_COM0)
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#define comgetc_x() comgetc(iodev - CONSDEV_COM0)
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#define comstatus_x() comstatus(iodev - CONSDEV_COM0)
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#endif /* DIRECT_SERIAL */
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static int getcomaddr(int);
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#endif /* SUPPORT_SERIAL */
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#define POLL_FREQ 10
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static void
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wait(int us)
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{
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int prev = biosgetsystime();
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int tgt = prev + (20 * us) / 1000000;
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int new;
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while ((new = biosgetsystime()) < tgt) {
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if (new < prev) /* XXX timer wrapped */
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break;
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prev = new;
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}
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}
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#ifdef SUPPORT_SERIAL
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static int
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getcomaddr(int idx)
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{
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short addr;
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#ifdef CONSADDR
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if (CONSADDR != 0)
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return CONSADDR;
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#endif
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/* read in BIOS data area */
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pvbcopy((void *)(0x400 + 2 * idx), &addr, 2);
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return addr;
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}
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#endif
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void
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clear_pc_screen(void)
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{
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#ifdef SUPPORT_SERIAL
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/* Clear the screen if we are on a glass tty. */
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if (iodev == CONSDEV_PC)
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conclr();
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#endif
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}
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void
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initio(int dev)
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{
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#ifdef SUPPORT_SERIAL
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int i;
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#if defined(DIRECT_SERIAL) && defined(CONSPEED)
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btinfo_console.speed = CONSPEED;
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#else
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btinfo_console.speed = 9600;
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#endif
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switch (dev) {
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case CONSDEV_AUTO:
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for (i = 0; i < 3; i++) {
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iodev = CONSDEV_COM0 + i;
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btinfo_console.addr = getcomaddr(i);
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if (!btinfo_console.addr)
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break;
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conputc('0' + i); /* to tell user what happens */
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cominit_x();
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#ifdef DIRECT_SERIAL
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/* check for:
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* 1. successful output
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* 2. optionally, keypress within 7s
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*/
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if ( computc_x(':') &&
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computc_x('-') &&
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computc_x('(')
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#ifdef COMCONS_KEYPRESS
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&& awaitkey(7, 0)
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#endif
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)
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goto ok;
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#else /* ! DIRECT_SERIAL */
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/*
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* serial console must have hardware handshake!
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* check:
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* 1. character output without error
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* 2. status bits for modem ready set
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* (status seems only useful after character output)
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* 3. optionally, keypress within 7s
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*/
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if (!(computc_x('@') & 0x80)
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&& (comstatus_x() & 0x00b0)
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#ifdef COMCONS_KEYPRESS
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&& awaitkey(7, 0)
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#endif
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)
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goto ok;
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#endif /* DIRECT_SERIAL */
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}
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iodev = CONSDEV_PC;
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ok:
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break;
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case CONSDEV_COM0:
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case CONSDEV_COM1:
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case CONSDEV_COM2:
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case CONSDEV_COM3:
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iodev = dev;
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btinfo_console.addr = getcomaddr(iodev - CONSDEV_COM0);
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if (!btinfo_console.addr)
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goto nocom;
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cominit_x();
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break;
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case CONSDEV_COM0KBD:
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case CONSDEV_COM1KBD:
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case CONSDEV_COM2KBD:
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case CONSDEV_COM3KBD:
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iodev = dev - CONSDEV_COM0KBD + CONSDEV_COM0;
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i = iodev - CONSDEV_COM0;
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btinfo_console.addr = getcomaddr(i);
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if (!btinfo_console.addr)
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goto nocom;
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conputc('0' + i); /* to tell user what happens */
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cominit_x();
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#ifdef DIRECT_SERIAL
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/* check for:
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* 1. successful output
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* 2. optionally, keypress within 7s
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*/
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if ( computc_x(':') &&
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computc_x('-') &&
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computc_x('(')
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#ifdef COMCONS_KEYPRESS
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&& awaitkey(7, 0)
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#endif
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)
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break;
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#else /* ! DIRECT_SERIAL */
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/*
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* serial console must have hardware handshake!
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* check:
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* 1. character output without error
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* 2. status bits for modem ready set
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* (status seems only useful after character output)
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* 3. optionally, keypress within 7s
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*/
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if (!(computc_x('@') & 0x80)
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&& (comstatus_x() & 0x00b0)
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#ifdef COMCONS_KEYPRESS
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&& awaitkey(7, 0)
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#endif
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)
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break;
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#endif /* DIRECT_SERIAL */
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default:
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nocom:
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iodev = CONSDEV_PC;
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break;
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}
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conputc('\015');
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conputc('\n');
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strncpy(btinfo_console.devname, iodev == CONSDEV_PC ? "pc" : "com", 16);
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#else /* !SUPPORT_SERIAL */
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btinfo_console.devname[0] = 'p';
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btinfo_console.devname[1] = 'c';
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btinfo_console.devname[2] = 0;
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#endif /* SUPPORT_SERIAL */
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}
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static inline void internal_putchar(int);
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static inline void
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internal_putchar(int c)
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{
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#ifdef SUPPORT_SERIAL
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switch (iodev) {
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case CONSDEV_PC:
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#endif
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conputc(c);
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#ifdef SUPPORT_SERIAL
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break;
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case CONSDEV_COM0:
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case CONSDEV_COM1:
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case CONSDEV_COM2:
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case CONSDEV_COM3:
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computc_x(c);
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break;
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}
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#endif
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}
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void
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putchar(int c)
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{
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if (c == '\n')
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internal_putchar('\r');
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internal_putchar(c);
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}
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int
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#if !defined(__minix)
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getchar(void)
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#else
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getchar_ex(void)
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#endif /* !defined(__minix) */
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{
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int c;
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#ifdef SUPPORT_SERIAL
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switch (iodev) {
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default: /* to make gcc -Wall happy... */
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case CONSDEV_PC:
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#endif
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while (!coniskey())
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;
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c = congetc();
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#ifdef CONSOLE_KEYMAP
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{
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#if !defined(__minix)
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char *cp = strchr(CONSOLE_KEYMAP, c);
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#else
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char *cp = strchr(CONSOLE_KEYMAP, c & 0xff);
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#endif /* !defined(__minix) */
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if (cp != 0 && cp[1] != 0)
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#if !defined(__minix)
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c = cp[1];
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#else
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c = cp[1] | (c & 0xff00);
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#endif /* !defined(__minix) */
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}
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#endif
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return c;
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#ifdef SUPPORT_SERIAL
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case CONSDEV_COM0:
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case CONSDEV_COM1:
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case CONSDEV_COM2:
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case CONSDEV_COM3:
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#ifdef DIRECT_SERIAL
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c = comgetc_x();
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#else
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do {
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c = comgetc_x();
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} while ((c >> 8) == 0xe0); /* catch timeout */
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#ifdef COMDEBUG
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if (c & 0x8000) {
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printf("com input %x, status %x\n",
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c, comstatus_x());
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}
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#endif
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c &= 0xff;
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#endif /* DIRECT_SERIAL */
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return c;
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}
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#endif /* SUPPORT_SERIAL */
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}
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#if defined(__minix)
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int
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getchar(void)
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{
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return getchar_ex() & 0xff;
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}
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#endif /* defined(__minix) */
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int
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iskey(int intr)
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{
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#ifdef SUPPORT_SERIAL
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switch (iodev) {
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default: /* to make gcc -Wall happy... */
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case CONSDEV_PC:
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#endif
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return (intr && conisshift()) || coniskey();
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#ifdef SUPPORT_SERIAL
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case CONSDEV_COM0:
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case CONSDEV_COM1:
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case CONSDEV_COM2:
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case CONSDEV_COM3:
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#ifdef DIRECT_SERIAL
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return !!comstatus_x();
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#else
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return !!(comstatus_x() & 0x0100);
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#endif
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}
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#endif /* SUPPORT_SERIAL */
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}
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char
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awaitkey(int timeout, int tell)
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{
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int i;
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char c = 0;
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i = timeout * POLL_FREQ;
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for (;;) {
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if (tell && (i % POLL_FREQ) == 0) {
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char numbuf[32];
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int len;
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len = snprintf(numbuf, sizeof(numbuf), "%d seconds. ",
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i/POLL_FREQ);
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if (len > 0 && len < sizeof(numbuf)) {
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char *p = numbuf;
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printf("%s", numbuf);
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while (*p)
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*p++ = '\b';
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printf("%s", numbuf);
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}
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}
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if (iskey(1)) {
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/* flush input buffer */
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while (iskey(0))
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c = getchar();
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if (c == 0)
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c = -1;
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goto out;
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}
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if (i--)
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wait(1000000 / POLL_FREQ);
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else
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break;
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}
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out:
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if (tell)
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printf("0 seconds. \n");
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return c;
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}
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void
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wait_sec(int sec)
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{
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wait(sec * 1000000);
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}
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