384 lines
9.4 KiB
C
384 lines
9.4 KiB
C
/* $NetBSD: asic.c,v 1.30 1998/09/05 05:54:15 nisimura Exp $ */
|
||
|
||
/*
|
||
* Copyright (c) 1994, 1995 Carnegie-Mellon University.
|
||
* All rights reserved.
|
||
*
|
||
* Author: Keith Bostic, Chris G. Demetriou, Jonathan Stone
|
||
*
|
||
* Permission to use, copy, modify and distribute this software and
|
||
* its documentation is hereby granted, provided that both the copyright
|
||
* notice and this permission notice appear in all copies of the
|
||
* software, derivative works or modified versions, and any portions
|
||
* thereof, and that both notices appear in supporting documentation.
|
||
*
|
||
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
||
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
||
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
||
*
|
||
* Carnegie Mellon requests users of this software to return to
|
||
*
|
||
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
||
* School of Computer Science
|
||
* Carnegie Mellon University
|
||
* Pittsburgh PA 15213-3890
|
||
*
|
||
* any improvements or extensions that they make and grant Carnegie the
|
||
* rights to redistribute these changes.
|
||
*/
|
||
|
||
#include <sys/param.h>
|
||
#include <sys/kernel.h>
|
||
#include <sys/systm.h>
|
||
#include <sys/device.h>
|
||
#include <dev/tc/tcvar.h>
|
||
#include <dev/tc/ioasicvar.h>
|
||
|
||
#include <machine/bus.h> /* wbflush() */
|
||
#include <machine/autoconf.h>
|
||
|
||
#ifdef alpha
|
||
#include <machine/rpb.h>
|
||
#include <alpha/tc/tc.h>
|
||
#include <alpha/tc/asic.h>
|
||
#endif
|
||
|
||
#ifdef pmax
|
||
#include <pmax/pmax/pmaxtype.h>
|
||
#include <pmax/pmax/machdep.h> /* XXX ioasic_init( */
|
||
#include <pmax/pmax/asic.h>
|
||
#include <pmax/pmax/kmin.h>
|
||
#include <pmax/pmax/maxine.h>
|
||
#include <pmax/pmax/kn03.h>
|
||
#include <pmax/pmax/turbochannel.h> /* interrupt enable declaration */
|
||
|
||
#include <pmax/pmax/kmin.h>
|
||
#include <pmax/pmax/nameglue.h>
|
||
|
||
/*
|
||
* Which system models were configured?
|
||
*/
|
||
#include "opt_dec_3max.h"
|
||
#include "opt_dec_3min.h"
|
||
#include "opt_dec_3maxplus.h"
|
||
#include "opt_dec_maxine.h"
|
||
|
||
|
||
|
||
#define C(x) ((void*)(x))
|
||
#define ASIC_NDEVS(x) (sizeof(x)/sizeof(x[0]))
|
||
#define ARRAY_SIZEOF(x) (sizeof((x)) / sizeof ((x)[0]))
|
||
|
||
#if defined(DEC_3MAXPLUS) || defined(DEC_3MIN)
|
||
struct ioasicdev_attach_args kn03_ioasic_devs[] = {
|
||
/* 0 */ { "lance", 0x0C0000, 0, C(KN03_LANCE_SLOT) },
|
||
/* 1 */ { "scc", 0x100000, 0, C(KN03_SCC0_SLOT) },
|
||
/* 2 */ { "scc", 0x180000, 0, C(KN03_SCC1_SLOT) },
|
||
/* 3 */ { "mc146818", 0x200000, 0, C(0), },
|
||
/* 4 */ { "asc", 0x300000, 0, C(KN03_SCSI_SLOT) },
|
||
};
|
||
const int nkn03_ioasic_devs = ARRAY_SIZEOF(kn03_ioasic_devs);
|
||
#endif /* DEC_3MAXPLUS || DEC_3MIN */
|
||
|
||
#if defined(DEC_MAXINE)
|
||
struct ioasicdev_attach_args xine_ioasic_devs[] = {
|
||
/* 0 */ { "lance", 0x0C0000, 0, C(XINE_LANCE_SLOT), },
|
||
/* 1 */ { "scc", 0x100000, 0, C(XINE_SCC0_SLOT), },
|
||
/* 2 */ { "mc146818", 0x200000, 0, C(0), },
|
||
/* 3 */ { "isdn", 0x240000, 0, C(XINE_ISDN_SLOT), },
|
||
/* 4 */ { "dtop", 0x280000, 0, C(XINE_DTOP_SLOT), },
|
||
/* 5 */ { "fdc", 0x2C0000, 0, C(XINE_FLOPPY_SLOT), },
|
||
/* 6 */ { "asc", 0x300000, 0, C(XINE_SCSI_SLOT), },
|
||
};
|
||
const int nxine_ioasic_devs = ARRAY_SIZEOF(xine_ioasic_devs);
|
||
#endif /* DEC_MAXINE */
|
||
|
||
#if defined(DEC_3MAX)
|
||
struct ioasicdev_attach_args kn02_ioasic_devs[] = {
|
||
/* 0 */ { "dc", 0x200000, 0, C(7), },
|
||
/* 0 */ { "mc146818", 0x280000, 0, C(0), },
|
||
};
|
||
const int nkn02_ioasic_devs = ARRAY_SIZEOF(kn02_ioasic_devs);
|
||
#endif /* DEC_3MAX */
|
||
#endif /* pmax */
|
||
|
||
struct asic_softc {
|
||
struct device sc_dv;
|
||
tc_addr_t sc_base;
|
||
};
|
||
|
||
/* Definition of the driver for autoconfig. */
|
||
int ioasicmatch __P((struct device *, struct cfdata *, void *));
|
||
void ioasicattach __P((struct device *, struct device *, void *));
|
||
int ioasicprint(void *, const char *);
|
||
|
||
/* Device locators. */
|
||
#include "locators.h"
|
||
#define ioasiccf_offset cf_loc[IOASICCF_OFFSET] /* offset */
|
||
|
||
struct cfattach ioasic_ca = {
|
||
sizeof(struct asic_softc), ioasicmatch, ioasicattach
|
||
};
|
||
|
||
void asic_intr_establish __P((struct confargs *, intr_handler_t,
|
||
intr_arg_t));
|
||
void asic_intr_disestablish __P((struct confargs *));
|
||
caddr_t ioasic_cvtaddr __P((struct confargs *));
|
||
|
||
int asic_intrnull __P((intr_arg_t));
|
||
|
||
struct asic_slot {
|
||
struct confargs as_ca;
|
||
intr_handler_t as_handler;
|
||
void *iada_cookie;
|
||
u_int iada_intrbits;
|
||
};
|
||
|
||
#ifdef pmax
|
||
/*#define IOASIC_DEBUG*/
|
||
|
||
struct ioasicdev_attach_args *asic_slots;
|
||
|
||
extern tc_addr_t ioasic_base;
|
||
tc_addr_t ioasic_base = 0;
|
||
#endif /*pmax*/
|
||
|
||
|
||
#ifdef IOASIC_DEBUG
|
||
#define IOASIC_DPRINTF(x) printf x
|
||
#else
|
||
#define IOASIC_DPRINTF(x) do { if (0) printf x ; } while (0)
|
||
#endif
|
||
|
||
int
|
||
ioasicmatch(parent, cf, aux)
|
||
struct device *parent;
|
||
struct cfdata *cf;
|
||
void *aux;
|
||
{
|
||
struct tc_attach_args *ta = aux;
|
||
|
||
IOASIC_DPRINTF(("asicmatch: %s slot %d offset 0x%x pri %d\n",
|
||
ta->ta_modname, ta->ta_slot, ta->ta_offset, (int)ta->ta_cookie));
|
||
|
||
/* An IOCTL asic can only occur on the turbochannel, anyway. */
|
||
#ifdef notyet
|
||
if (parent != &tccd)
|
||
return (0);
|
||
#endif
|
||
|
||
|
||
/*
|
||
* XXX This is wrong.
|
||
*/
|
||
/* The 3MAX (kn02) is special. */
|
||
if (TC_BUS_MATCHNAME(ta, KN02_ASIC_NAME)) {
|
||
#if 0
|
||
printf("(configuring KN02 system slot as asic)\n");
|
||
#endif
|
||
goto gotasic;
|
||
}
|
||
|
||
/* Make sure that we're looking for this type of device. */
|
||
if (!TC_BUS_MATCHNAME(ta, "IOCTL "))
|
||
return (0);
|
||
gotasic:
|
||
|
||
if (cf->cf_unit > 0)
|
||
return (0);
|
||
|
||
return (1);
|
||
}
|
||
|
||
void
|
||
ioasicattach(parent, self, aux)
|
||
struct device *parent, *self;
|
||
void *aux;
|
||
{
|
||
struct asic_softc *sc = (struct asic_softc *)self;
|
||
struct tc_attach_args *ta = aux;
|
||
struct ioasicdev_attach_args idev;
|
||
int i, nslots;
|
||
|
||
/* See if the unit number is valid. */
|
||
switch (systype) {
|
||
#if defined(DEC_3MAXPLUS) || defined(DEC_3MIN)
|
||
case DS_3MIN:
|
||
case DS_3MAXPLUS:
|
||
/* 3min ioasic addressees are the same as 3maxplus. */
|
||
asic_slots = kn03_ioasic_devs;
|
||
nslots = nkn03_ioasic_devs;
|
||
break;
|
||
#endif
|
||
|
||
#ifdef DEC_MAXINE
|
||
case DS_MAXINE:
|
||
asic_slots = xine_ioasic_devs;
|
||
nslots = nxine_ioasic_devs;
|
||
break;
|
||
#endif
|
||
|
||
#ifdef DEC_3MAX
|
||
case DS_3MAX:
|
||
asic_slots = kn02_ioasic_devs;
|
||
nslots = nkn02_ioasic_devs;
|
||
break;
|
||
#endif
|
||
|
||
default:
|
||
panic("ioasicattach: shouldn't be here, really...");
|
||
}
|
||
|
||
IOASIC_DPRINTF(("asicattach: %s\n", sc->sc_dv.dv_xname));
|
||
|
||
sc->sc_base = ta->ta_addr;
|
||
|
||
ioasic_base = sc->sc_base; /* XXX XXX XXX */
|
||
|
||
#ifdef pmax
|
||
printf("\n");
|
||
#else /* Alpha AXP: select ASIC speed */
|
||
#ifdef DEC_3000_300
|
||
if (systype == ST_DEC_3000_300) {
|
||
*(volatile u_int *)IOASIC_REG_CSR(sc->sc_base) |=
|
||
IOASIC_CSR_FASTMODE;
|
||
MB();
|
||
printf(": slow mode\n");
|
||
} else
|
||
#endif /*DEC_3000_300*/
|
||
printf(": fast mode\n");
|
||
|
||
/* Decstations use hand-craft code to enable asic interrupts */
|
||
BUS_INTR_ESTABLISH(ta, asic_intr, sc);
|
||
|
||
#endif /* Alpha AXP: select ASIC speed */
|
||
|
||
|
||
/* The MAXINE has seven pseudo-slots in its system slot */
|
||
#define ASIC_MAX_NSLOTS 7 /*XXX*/
|
||
|
||
/* Try to configure each CPU-internal device */
|
||
for (i = 0; i < nslots; i++) {
|
||
|
||
IOASIC_DPRINTF(("asicattach: entry %d, base addr %x\n",
|
||
i, sc->sc_base));
|
||
|
||
/* Compute address at runtime. Leave table readonly. */
|
||
idev = asic_slots[i];
|
||
idev.iada_addr =((u_long)sc->sc_base) + idev.iada_offset;
|
||
|
||
if (idev.iada_modname == NULL || idev.iada_modname[0] == 0)
|
||
break;
|
||
|
||
IOASIC_DPRINTF((" adding %s offset %x addr %x\n",
|
||
idev.iada_modname, idev.iada_offset, idev.iada_addr));
|
||
|
||
/* Tell the autoconfig machinery we've found the hardware. */
|
||
config_found(self, &idev, ioasicprint);
|
||
}
|
||
IOASIC_DPRINTF(("asicattach: done\n"));
|
||
}
|
||
|
||
int
|
||
ioasicprint(aux, pnp)
|
||
void *aux;
|
||
const char *pnp;
|
||
{
|
||
struct ioasicdev_attach_args *d = aux;
|
||
|
||
if (pnp)
|
||
printf("%s at %s", d->iada_modname, pnp);
|
||
printf(" offset 0x%x", d->iada_offset);
|
||
printf(" priority %d", (int)d->iada_cookie);
|
||
return (UNCONF);
|
||
}
|
||
|
||
int
|
||
ioasic_submatch(match, d)
|
||
struct cfdata *match;
|
||
struct ioasicdev_attach_args *d;
|
||
{
|
||
|
||
return ((match->ioasiccf_offset == d->iada_offset) ||
|
||
(match->ioasiccf_offset == IOASICCF_OFFSET_DEFAULT));
|
||
}
|
||
|
||
|
||
void
|
||
ioasic_intr_establish(dev, cookie, level, handler, val)
|
||
struct device *dev;
|
||
void *cookie;
|
||
tc_intrlevel_t level;
|
||
intr_handler_t handler;
|
||
void *val;
|
||
{
|
||
|
||
(*tc_enable_interrupt)((int)cookie, handler, val, 1);
|
||
}
|
||
|
||
int
|
||
asic_intrnull(val)
|
||
intr_arg_t val;
|
||
{
|
||
|
||
panic("uncaught IOCTL ASIC intr for slot %ld\n", (long)val);
|
||
}
|
||
|
||
|
||
/* XXX */
|
||
char *
|
||
ioasic_lance_ether_address()
|
||
{
|
||
return (u_char *)IOASIC_SYS_ETHER_ADDRESS(ioasic_base);
|
||
}
|
||
|
||
void
|
||
ioasic_lance_dma_setup(v)
|
||
void *v;
|
||
{
|
||
volatile u_int32_t *ldp;
|
||
tc_addr_t tca;
|
||
|
||
tca = (tc_addr_t)v;
|
||
|
||
ldp = (volatile u_int *)IOASIC_REG_LANCE_DMAPTR(ioasic_base);
|
||
*ldp = ((tca << 3) & ~(tc_addr_t)0x1f) | ((tca >> 29) & 0x1f);
|
||
tc_wmb();
|
||
|
||
*(volatile u_int32_t *)IOASIC_REG_CSR(ioasic_base) |=
|
||
IOASIC_CSR_DMAEN_LANCE;
|
||
tc_mb();
|
||
}
|
||
|
||
void ioasic_init(int flag);
|
||
|
||
/*
|
||
* Initialize the I/O asic
|
||
*/
|
||
void
|
||
ioasic_init(bogus)
|
||
int bogus; /* XXX */
|
||
{
|
||
/* common across 3min, 3maxplus and maxine */
|
||
*(volatile u_int *)(ioasic_base + IOASIC_LANCE_DECODE) = 0x3;
|
||
*(volatile u_int *)(ioasic_base + IOASIC_SCSI_DECODE) = 0xe;
|
||
|
||
#if 0
|
||
switch (systype) {
|
||
case DS_3MIN:
|
||
case DS_3MAXPLUS:
|
||
*(volatile u_int *)(ioasic_base + IOASIC_SCC0_DECODE) = (0x10|4);
|
||
*(volatile u_int *)(ioasic_base + IOASIC_SCC1_DECODE) = (0x10|6);
|
||
*(volatile u_int *)(ioasic_base + IOASIC_CSR) = 0x00000f00;
|
||
break;
|
||
|
||
case DS_MAXINE:
|
||
*(volatile u_int *)(ioasic_base + IOASIC_SCC0_DECODE) = (0x10|4);
|
||
*(volatile u_int *)(ioasic_base + IOASIC_DTOP_DECODE) = 10;
|
||
*(volatile u_int *)(ioasic_base + IOASIC_FLOPPY_DECODE) = 13;
|
||
*(volatile u_int *)(ioasic_base + IOASIC_CSR) = 0x00001fc1;
|
||
break;
|
||
}
|
||
#endif
|
||
}
|