185 lines
4.5 KiB
C
185 lines
4.5 KiB
C
/* $NetBSD: pm_ds.c,v 1.13 2000/01/09 03:55:40 simonb Exp $ */
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/*
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* Copyright 1996 The Board of Trustees of The Leland Stanford
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* Junior University. All Rights Reserved.
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*
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* Permission to use, copy, modify, and distribute this
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* software and its documentation for any purpose and without
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* fee is hereby granted, provided that the above copyright
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* notice appear in all copies. Stanford University
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* makes no representations about the suitability of this
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* software for any purpose. It is provided "as is" without
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* express or implied warranty.
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*
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* this driver contributed by Jonathan Stone
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/device.h>
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#include <sys/tty.h>
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#include <machine/autoconf.h>
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#include <pmax/ibus/ibusvar.h>
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#include <pmax/pmax/kn01.h>
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#include <pmax/pmax/cons.h>
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#include <sys/ioctl.h>
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#include <machine/pmioctl.h>
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#include <machine/fbio.h>
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#include <machine/fbvar.h>
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#include <pmax/dev/fbreg.h>
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#include <pmax/dev/dcvar.h>
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#include <machine/dc7085cons.h> /* XXX */
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#include <pmax/dev/pmvar.h> /* XXX move */
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#include "fb.h"
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#include "pm.h"
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#include "dc.h"
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#if 0 /* XXX not used */
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static int ds_pm_init __P((struct fbinfo *fi, int unit,
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int cold_console_flag));
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#endif
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static int pm_ds_match __P((struct device *, struct cfdata *, void *));
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static void pm_ds_attach __P((struct device *, struct device *, void *));
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/*
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* Define decstation pm front-end driver for autoconfig
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*/
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extern struct cfattach pm_ds_ca;
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struct cfattach pm_ds_ca = {
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sizeof(struct device), pm_ds_match, pm_ds_attach
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};
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#if 0 /* XXX not used */
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/*
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* Intialize pm framebuffer as console while cold
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*/
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static int
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ds_pm_init (fi, unit, cold_console_flag)
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struct fbinfo *fi;
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int unit;
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int cold_console_flag;
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{
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caddr_t base;
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base = (caddr_t)MIPS_PHYS_TO_KSEG1(KN01_SYS_PCC);
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/* only have one pm, address &c hardcoded in pminit() */
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return (pminit(fi, base, unit, cold_console_flag));
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}
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#endif
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static int
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pm_ds_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct ibus_attach_args *ia = aux;
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caddr_t pmaddr = (caddr_t)ia->ia_addr;
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/* make sure that we're looking for this type of device. */
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if (strcmp(ia->ia_name, "pm") != 0)
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return (0);
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if (badaddr(pmaddr, 4))
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return (0);
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return (1);
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}
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static void
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pm_ds_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct ibus_attach_args *ia = aux;
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caddr_t base = (caddr_t)ia->ia_addr;
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struct fbinfo *fi;
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/* Allocate a struct fbinfo and point the softc at it */
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if (fballoc(base, &fi) == 0 && !pminit(fi, base, 0, 0))
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return;
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if ((((struct fbsoftc *)self)->sc_fi = fi) == NULL)
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return;
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/* no interrupts for PM */
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/*BUS_INTR_ESTABLISH(ca, sccintr, self->dv_unit);*/
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printf("\n");
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return;
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}
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/*
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* pmax FB initialization. This is abstracted out from pmattach() so
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* that a console framebuffer can be initialized early in boot.
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*
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* Compute cursor-chip address, raster address, depth, initialize
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* statically-allocated "softc", and pass to pmattach().
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*/
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int
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pminit(fi, base, unit, cold_console_flag)
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struct fbinfo *fi;
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caddr_t base;
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int unit;
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int cold_console_flag;
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{
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/* Set address of frame buffer... */
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fi->fi_unit = unit;
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fi->fi_base = base;
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fi->fi_pixels = (caddr_t)MIPS_PHYS_TO_KSEG1(KN01_PHYS_FBUF_START);
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fi->fi_vdac = (caddr_t)MIPS_PHYS_TO_KSEG1(KN01_SYS_VDAC);
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/* check for no frame buffer */
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if (badaddr((char *)fi->fi_pixels, 4))
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return (0);
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/* Fill in the stuff that differs from monochrome to color. */
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if (*(volatile u_short *)MIPS_PHYS_TO_KSEG1(KN01_SYS_CSR) &
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KN01_CSR_MONO) {
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fi->fi_type.fb_depth = 1;
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}
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else {
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fi->fi_type.fb_depth = 8;
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}
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/*
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* Set mmap'able address of qvss-compatible user info structure.
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*
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* Must be in Uncached space since the fbuaccess structure is
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* mapped into the user's address space uncached.
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*
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* XXX can go away when MI support for d_mmap entrypoints added.
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*/
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fi->fi_fbu = (struct fbuaccess *)
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MIPS_PHYS_TO_KSEG1(MIPS_KSEG0_TO_PHYS(&pmu));
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fi->fi_glasstty = &pmfb;
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/*
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* set putc/getc entry point
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*/
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/*
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* XXX
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* pmax raster-console infrastructure needs to reset the mouse, so
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* we need a driver callback.
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* pm framebuffers are only found in {dec,vax}station 3100s with
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* dc7085s we hardcode an entry point to dcPutc();
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* XXX
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*/
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fi->fi_glasstty->KBDPutc = dcPutc; /* XXX */
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fi->fi_glasstty->kbddev = makedev(DCDEV, DCKBD_PORT);
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/* call back-end to initialize hardware and attach to rcons */
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return (pmattach(fi, unit, cold_console_flag));
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}
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