155 lines
3.8 KiB
C
155 lines
3.8 KiB
C
/* $FreeBSD$ */
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/* $NetBSD: dec_eb164.c,v 1.26 1998/04/17 02:45:19 mjacob Exp $ */
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/*
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* Copyright (c) 1995, 1996, 1997 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* Additional Copyright (c) 1997 by Matthew Jacob for NASA/Ames Research Center
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*/
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#include "opt_ddb.h"
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#include <sys/param.h>
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#include <sys/reboot.h>
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#include <sys/systm.h>
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#include <sys/termios.h>
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#include <sys/bus.h>
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#include <machine/rpb.h>
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#include <machine/cpuconf.h>
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#include <machine/clock.h>
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#include <alpha/pci/ciavar.h>
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#include "opt_dev_sc.h"
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#ifndef CONSPEED
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#define CONSPEED TTYDEF_SPEED
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#endif
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static int comcnrate = CONSPEED;
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void dec_eb164_init(void);
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static void dec_eb164_cons_init(void);
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static void eb164_intr_init(void);
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extern void eb164_intr_enable(int irq);
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extern void eb164_intr_disable(int irq);
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extern void eb164_intr_enable_icsr(int irq);
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extern void eb164_intr_disable_icsr(int irq);
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extern int siocnattach(int, int);
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extern int siogdbattach(int, int);
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extern int sccnattach(void);
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void
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dec_eb164_init()
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{
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platform.family = "EB164";
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if ((platform.model = alpha_dsr_sysname()) == NULL) {
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/* XXX Don't know the system variations, yet. */
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platform.model = alpha_unknown_sysname();
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}
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platform.iobus = "cia";
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platform.cons_init = dec_eb164_cons_init;
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platform.pci_intr_init = eb164_intr_init;
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platform.pci_intr_map = NULL;
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if (strncmp(platform.model, "Digital AlphaPC 164 ", 20) == 0) {
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platform.pci_intr_disable = eb164_intr_disable_icsr;
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platform.pci_intr_enable = eb164_intr_enable_icsr;
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} else {
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platform.pci_intr_disable = eb164_intr_disable;
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platform.pci_intr_enable = eb164_intr_enable;
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}
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}
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extern int comconsole; /* XXX for forcing comconsole when srm serial console is used */
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static void
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dec_eb164_cons_init()
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{
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struct ctb *ctb;
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cia_init();
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#ifdef DDB
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siogdbattach(0x2f8, 57600);
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#endif
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ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
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switch (ctb->ctb_term_type) {
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case 2:
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/* serial console ... */
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/* XXX */
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{
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/*
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* Delay to allow PROM putchars to complete.
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* FIFO depth * character time,
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* character time = (1000000 / (defaultrate / 10))
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*/
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DELAY(160000000 / comcnrate);
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/*
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* Force a comconsole on com1 if the SRM has a serial
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* console.
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*/
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comconsole = 0;
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if (siocnattach(0x3f8, comcnrate))
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panic("can't init serial console");
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boothowto |= RB_SERIAL;
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break;
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}
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case 3:
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/* display console ... */
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/* XXX */
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#ifdef DEV_SC
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sccnattach();
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#else
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panic("not configured to use display && keyboard console");
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#endif
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break;
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default:
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printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
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printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
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panic("consinit: unknown console type %d\n",
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(int)ctb->ctb_term_type);
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}
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}
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static void
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eb164_intr_init()
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{
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/*
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* Enable ISA-PCI cascade interrupt.
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*/
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eb164_intr_enable(4);
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}
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