NetBSD/sys/arch/alpha/tc/tcasic.c

168 lines
4.2 KiB
C

/* $NetBSD: tcasic.c,v 1.22 1998/01/19 02:54:24 thorpej Exp $ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* 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 "opt_dec_3000_300.h"
#include "opt_dec_3000_500.h"
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: tcasic.c,v 1.22 1998/01/19 02:54:24 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/rpb.h>
#include <dev/tc/tcvar.h>
#include <alpha/tc/tc_conf.h>
/* Definition of the driver for autoconfig. */
int tcasicmatch(struct device *, struct cfdata *, void *);
void tcasicattach(struct device *, struct device *, void *);
struct cfattach tcasic_ca = {
sizeof (struct device), tcasicmatch, tcasicattach,
};
extern struct cfdriver tcasic_cd;
int tcasicprint __P((void *, const char *));
extern int cputype;
/* There can be only one. */
int tcasicfound;
int
tcasicmatch(parent, cfdata, aux)
struct device *parent;
struct cfdata *cfdata;
void *aux;
{
struct confargs *ca = aux;
/* Make sure that we're looking for a TurboChannel ASIC. */
if (strcmp(ca->ca_name, tcasic_cd.cd_name))
return (0);
/* Make sure that the system supports a TurboChannel ASIC. */
if ((cputype != ST_DEC_3000_500) && (cputype != ST_DEC_3000_300))
return (0);
if (tcasicfound)
return (0);
return (1);
}
void
tcasicattach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct tcbus_attach_args tba;
void (*intr_setup) __P((void));
void (*iointr) __P((void *, unsigned long));
printf("\n");
tcasicfound = 1;
switch (cputype) {
#ifdef DEC_3000_500
case ST_DEC_3000_500:
intr_setup = tc_3000_500_intr_setup;
iointr = tc_3000_500_iointr;
tba.tba_speed = TC_SPEED_25_MHZ;
tba.tba_nslots = tc_3000_500_nslots;
tba.tba_slots = tc_3000_500_slots;
if (hwrpb->rpb_variation & SV_GRAPHICS) {
tba.tba_nbuiltins = tc_3000_500_graphics_nbuiltins;
tba.tba_builtins = tc_3000_500_graphics_builtins;
} else {
tba.tba_nbuiltins = tc_3000_500_nographics_nbuiltins;
tba.tba_builtins = tc_3000_500_nographics_builtins;
}
tba.tba_intr_establish = tc_3000_500_intr_establish;
tba.tba_intr_disestablish = tc_3000_500_intr_disestablish;
tba.tba_get_dma_tag = tc_dma_get_tag_3000_500;
/* Do 3000/500-specific DMA setup now. */
tc_dma_init_3000_500(tc_3000_500_nslots);
break;
#endif /* DEC_3000_500 */
#ifdef DEC_3000_300
case ST_DEC_3000_300:
intr_setup = tc_3000_300_intr_setup;
iointr = tc_3000_300_iointr;
tba.tba_speed = TC_SPEED_12_5_MHZ;
tba.tba_nslots = tc_3000_300_nslots;
tba.tba_slots = tc_3000_300_slots;
tba.tba_nbuiltins = tc_3000_300_nbuiltins;
tba.tba_builtins = tc_3000_300_builtins;
tba.tba_intr_establish = tc_3000_300_intr_establish;
tba.tba_intr_disestablish = tc_3000_300_intr_disestablish;
tba.tba_get_dma_tag = tc_dma_get_tag_3000_300;
break;
#endif /* DEC_3000_300 */
default:
panic("tcasicattach: bad cputype");
}
tba.tba_busname = "tc";
tba.tba_memt = tc_bus_mem_init(NULL);
tc_dma_init();
(*intr_setup)();
set_iointr(iointr);
config_found(self, &tba, tcasicprint);
}
int
tcasicprint(aux, pnp)
void *aux;
const char *pnp;
{
/* only TCs can attach to tcasics; easy. */
if (pnp)
printf("tc at %s", pnp);
return (UNCONF);
}