303 lines
7.1 KiB
C
303 lines
7.1 KiB
C
/* $NetBSD: dec_550.c,v 1.36 2012/10/13 17:58:54 jdc 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_kgdb.h"
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#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
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__KERNEL_RCSID(0, "$NetBSD: dec_550.c,v 1.36 2012/10/13 17:58:54 jdc Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/termios.h>
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#include <sys/conf.h>
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#include <dev/cons.h>
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#include <uvm/uvm_extern.h>
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#include <machine/rpb.h>
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#include <machine/autoconf.h>
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#include <machine/cpuconf.h>
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#include <sys/bus.h>
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#include <dev/ic/comreg.h>
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#include <dev/ic/comvar.h>
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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#include <dev/ic/i8042reg.h>
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#include <dev/ic/pckbcvar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <alpha/pci/ciareg.h>
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#include <alpha/pci/ciavar.h>
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#include <dev/scsipi/scsi_all.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsiconf.h>
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#include <dev/ata/atavar.h>
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/* Write this to Pyxis General Purpose Output to turn off the power. */
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#define DEC_550_PYXIS_GPO_POWERDOWN 0x00000400
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#include "pckbd.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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#define DR_VERBOSE(f) while (0)
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void dec_550_init(void);
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static void dec_550_cons_init(void);
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static void dec_550_device_register(device_t, void *);
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static void dec_550_powerdown(void);
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#ifdef KGDB
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#include <machine/db_machdep.h>
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static const char *kgdb_devlist[] = {
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"com",
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NULL,
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};
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#endif /* KGDB */
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void
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dec_550_init(void)
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{
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platform.family = "Digital Personal Workstation";
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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_550_cons_init;
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platform.device_register = dec_550_device_register;
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platform.powerdown = dec_550_powerdown;
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/*
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* If Miata systems have a secondary cache, it's 2MB.
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*/
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uvmexp.ncolors = atop(2 * 1024 * 1024);
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}
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static void
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dec_550_cons_init(void)
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{
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struct ctb *ctb;
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struct cia_config *ccp;
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extern struct cia_config cia_configuration;
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ccp = &cia_configuration;
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cia_init(ccp, 0);
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ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
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switch (ctb->ctb_term_type) {
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case CTB_PRINTERPORT:
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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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if(comcnattach(&ccp->cc_iot, 0x3f8, comcnrate,
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COM_FREQ, COM_TYPE_NORMAL,
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(TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
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panic("can't init serial console");
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break;
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}
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case CTB_GRAPHICS:
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#if NPCKBD > 0
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/* display console ... */
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/* XXX */
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(void) pckbc_cnattach(&ccp->cc_iot, IO_KBD, KBCMDP,
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PCKBC_KBD_SLOT, 0);
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if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
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CTB_TURBOSLOT_TYPE_ISA)
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isa_display_console(&ccp->cc_iot, &ccp->cc_memt);
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else
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pci_display_console(&ccp->cc_iot, &ccp->cc_memt,
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&ccp->cc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
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CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
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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 %ld",
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ctb->ctb_term_type);
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}
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#ifdef KGDB
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/* Attach the KGDB device. */
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alpha_kgdb_init(kgdb_devlist, &ccp->cc_iot);
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#endif /* KGDB */
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}
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static void
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dec_550_device_register(device_t dev, void *aux)
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{
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static int found, initted, diskboot, netboot;
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static device_t pcidev, ctrlrdev;
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struct bootdev_data *b = bootdev_data;
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device_t parent = device_parent(dev);
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if (found)
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return;
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if (!initted) {
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diskboot = (strcasecmp(b->protocol, "SCSI") == 0) ||
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(strcasecmp(b->protocol, "IDE") == 0);
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netboot = (strcasecmp(b->protocol, "BOOTP") == 0) ||
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(strcasecmp(b->protocol, "MOP") == 0);
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DR_VERBOSE(printf("diskboot = %d, netboot = %d\n", diskboot,
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netboot));
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initted = 1;
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}
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if (pcidev == NULL) {
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if (!device_is_a(dev, "pci"))
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return;
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else {
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struct pcibus_attach_args *pba = aux;
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if ((b->slot / 1000) != pba->pba_bus)
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return;
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pcidev = dev;
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DR_VERBOSE(printf("\npcidev = %s\n", device_xname(dev)));
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return;
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}
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}
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if (ctrlrdev == NULL) {
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if (parent != pcidev)
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return;
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else {
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struct pci_attach_args *pa = aux;
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int slot;
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slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
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pa->pa_device;
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if (b->slot != slot)
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return;
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if (netboot) {
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booted_device = dev;
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DR_VERBOSE(printf("\nbooted_device = %s\n",
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device_xname(dev)));
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found = 1;
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} else {
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ctrlrdev = dev;
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DR_VERBOSE(printf("\nctrlrdev = %s\n",
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device_xname(dev)));
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}
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return;
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}
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}
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if (!diskboot)
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return;
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if (device_is_a(dev, "sd") ||
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device_is_a(dev, "st") ||
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device_is_a(dev, "cd")) {
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struct scsipibus_attach_args *sa = aux;
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struct scsipi_periph *periph = sa->sa_periph;
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int unit;
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if (device_parent(parent) != ctrlrdev)
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return;
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unit = periph->periph_target * 100 + periph->periph_lun;
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if (b->unit != unit)
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return;
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if (b->channel != periph->periph_channel->chan_channel)
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return;
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/* we've found it! */
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booted_device = dev;
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DR_VERBOSE(printf("\nbooted_device = %s\n", device_xname(dev)));
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found = 1;
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}
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/*
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* Support to boot from IDE drives.
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*/
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if (device_is_a(dev, "wd")) {
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struct ata_device *adev = aux;
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if (!device_is_a(parent, "atabus"))
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return;
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if (device_parent(parent) != ctrlrdev)
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return;
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DR_VERBOSE(printf("\nAtapi info: drive: %d, channel %d\n",
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adev->adev_drv_data->drive, adev->adev_channel));
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DR_VERBOSE(printf("Bootdev info: unit: %d, channel: %d\n",
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b->unit, b->channel));
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if (b->unit != adev->adev_drv_data->drive ||
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b->channel != adev->adev_channel)
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return;
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/* we've found it! */
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booted_device = dev;
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DR_VERBOSE(printf("booted_device = %s\n", device_xname(dev)));
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found = 1;
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}
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}
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static void
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dec_550_powerdown(void)
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{
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REGVAL(PYXIS_GPO) = DEC_550_PYXIS_GPO_POWERDOWN;
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alpha_mb();
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}
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