Home | History | Annotate | Line # | Download | only in tc
tcasic.c revision 1.16 
      1 /* $NetBSD: tcasic.c,v 1.16 1997/04/06 22:32:06 cgd Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
      5  * All rights reserved.
      6  *
      7  * Author: Chris G. Demetriou
      8  *
      9  * Permission to use, copy, modify and distribute this software and
     10  * its documentation is hereby granted, provided that both the copyright
     11  * notice and this permission notice appear in all copies of the
     12  * software, derivative works or modified versions, and any portions
     13  * thereof, and that both notices appear in supporting documentation.
     14  *
     15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  *
     19  * Carnegie Mellon requests users of this software to return to
     20  *
     21  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  *  School of Computer Science
     23  *  Carnegie Mellon University
     24  *  Pittsburgh PA 15213-3890
     25  *
     26  * any improvements or extensions that they make and grant Carnegie the
     27  * rights to redistribute these changes.
     28  */
     29 
     30 #include <machine/options.h>		/* Pull in config options headers */
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/device.h>
     35 
     36 #include <machine/autoconf.h>
     37 #include <machine/rpb.h>
     38 
     39 #include <dev/tc/tcvar.h>
     40 #include <alpha/tc/tc_conf.h>
     41 
     42 /* Definition of the driver for autoconfig. */
     43 int	tcasicmatch(struct device *, struct cfdata *, void *);
     44 void	tcasicattach(struct device *, struct device *, void *);
     45 
     46 struct cfattach tcasic_ca = {
     47 	sizeof (struct device), tcasicmatch, tcasicattach,
     48 };
     49 
     50 struct cfdriver tcasic_cd = {
     51 	NULL, "tcasic", DV_DULL,
     52 };
     53 
     54 int	tcasicprint __P((void *, const char *));
     55 
     56 extern int cputype;
     57 
     58 /* There can be only one. */
     59 int	tcasicfound;
     60 
     61 int
     62 tcasicmatch(parent, cfdata, aux)
     63 	struct device *parent;
     64 	struct cfdata *cfdata;
     65 	void *aux;
     66 {
     67 	struct confargs *ca = aux;
     68 
     69         /* Make sure that we're looking for a TurboChannel ASIC. */
     70         if (strcmp(ca->ca_name, tcasic_cd.cd_name))
     71                 return (0);
     72 
     73         /* Make sure that the system supports a TurboChannel ASIC. */
     74 	if ((cputype != ST_DEC_3000_500) && (cputype != ST_DEC_3000_300))
     75 		return (0);
     76 
     77 	if (tcasicfound)
     78 		return (0);
     79 
     80 	return (1);
     81 }
     82 
     83 void
     84 tcasicattach(parent, self, aux)
     85 	struct device *parent;
     86 	struct device *self;
     87 	void *aux;
     88 {
     89 	struct tcbus_attach_args tba;
     90 	void (*intr_setup) __P((void));
     91 	void (*iointr) __P((void *, unsigned long));
     92 
     93 	printf("\n");
     94 	tcasicfound = 1;
     95 
     96 	switch (cputype) {
     97 #ifdef DEC_3000_500
     98 	case ST_DEC_3000_500:
     99 
    100 		intr_setup = tc_3000_500_intr_setup;
    101 		iointr = tc_3000_500_iointr;
    102 
    103 		tba.tba_busname = "tc";
    104 		tba.tba_speed = TC_SPEED_25_MHZ;
    105 		tba.tba_nslots = tc_3000_500_nslots;
    106 		tba.tba_slots = tc_3000_500_slots;
    107 		if (hwrpb->rpb_variation & SV_GRAPHICS) {
    108 			tba.tba_nbuiltins = tc_3000_500_graphics_nbuiltins;
    109 			tba.tba_builtins = tc_3000_500_graphics_builtins;
    110 		} else {
    111 			tba.tba_nbuiltins = tc_3000_500_nographics_nbuiltins;
    112 			tba.tba_builtins = tc_3000_500_nographics_builtins;
    113 		}
    114 		tba.tba_intr_establish = tc_3000_500_intr_establish;
    115 		tba.tba_intr_disestablish = tc_3000_500_intr_disestablish;
    116 		break;
    117 #endif /* DEC_3000_500 */
    118 
    119 #ifdef DEC_3000_300
    120 	case ST_DEC_3000_300:
    121 
    122 		intr_setup = tc_3000_300_intr_setup;
    123 		iointr = tc_3000_300_iointr;
    124 
    125 		tba.tba_busname = "tc";
    126 		tba.tba_speed = TC_SPEED_12_5_MHZ;
    127 		tba.tba_nslots = tc_3000_300_nslots;
    128 		tba.tba_slots = tc_3000_300_slots;
    129 		tba.tba_nbuiltins = tc_3000_300_nbuiltins;
    130 		tba.tba_builtins = tc_3000_300_builtins;
    131 		tba.tba_intr_establish = tc_3000_300_intr_establish;
    132 		tba.tba_intr_disestablish = tc_3000_300_intr_disestablish;
    133 		break;
    134 #endif /* DEC_3000_300 */
    135 
    136 	default:
    137 		panic("tcasicattach: bad cputype");
    138 	}
    139 
    140 	tba.tba_memt = tc_bus_mem_init(NULL);
    141 
    142 	/* XXX XXX BEGIN XXX XXX */
    143 	{							/* XXX */
    144 		extern vm_offset_t alpha_XXX_dmamap_or;		/* XXX */
    145 		alpha_XXX_dmamap_or = 0;			/* XXX */
    146 	}							/* XXX */
    147 	/* XXX XXX END XXX XXX */
    148 
    149 	(*intr_setup)();
    150 	set_iointr(iointr);
    151 
    152 	config_found(self, &tba, tcasicprint);
    153 }
    154 
    155 int
    156 tcasicprint(aux, pnp)
    157 	void *aux;
    158 	const char *pnp;
    159 {
    160 
    161 	/* only TCs can attach to tcasics; easy. */
    162 	if (pnp)
    163 		printf("tc at %s", pnp);
    164 	return (UNCONF);
    165 }
    166