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/* $OpenBSD: tcasic.c,v 1.19 2022/03/13 08:04:13 mpi Exp $ */
/* $NetBSD: tcasic.c,v 1.36 2001/08/23 01:16:52 nisimura 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/rpb.h>
#include <machine/cpu.h>
#include <dev/tc/tcvar.h>
#include <alpha/tc/tc_conf.h>
/* Definition of the driver for autoconfig. */
int tcasicmatch(struct device *, void *, void *);
void tcasicattach(struct device *, struct device *, void *);
int tcasicactivate(struct device *, int);
const struct cfattach tcasic_ca = {
.ca_devsize = sizeof (struct device),
.ca_match = tcasicmatch,
.ca_attach = tcasicattach,
.ca_activate = tcasicactivate
};
struct cfdriver tcasic_cd = {
NULL, "tcasic", DV_DULL,
};
int tcasicprint(void *, const char *);
/* There can be only one. */
int tcasicfound;
int
tcasicmatch(parent, cfdata, aux)
struct device *parent;
void *cfdata, *aux;
{
struct mainbus_attach_args *ma = aux;
/* Make sure that we're looking for a TurboChannel ASIC. */
if (strcmp(ma->ma_name, tcasic_cd.cd_name))
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)(void);
void (*iointr)(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;
if ((hwrpb->rpb_type & SV_ST_MASK) == SV_ST_SANDPIPER)
tba.tba_speed = TC_SPEED_22_5_MHZ;
else
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)();
/* They all come in at 0x800. */
scb_set(0x800, iointr, NULL);
config_found(self, &tba, tcasicprint);
}
int
tcasicactivate(struct device *self, int act)
{
switch (cputype) {
#ifdef DEC_3000_500
case ST_DEC_3000_500:
return tc_3000_500_activate(self, act);
#endif
default:
return config_activate_children(self, act);
}
}
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);
}
int
tc_fb_cnattach(tcaddr)
tc_addr_t tcaddr;
{
return (ENXIO);
}
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