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tcasic.c revision 1.17 
      1 /* $NetBSD: tcasic.c,v 1.17 1997/04/07 23:41:00 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>		/* Config options headers */
     31 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
     32 
     33 __KERNEL_RCSID(0, "$NetBSD: tcasic.c,v 1.17 1997/04/07 23:41:00 cgd Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/device.h>
     38 
     39 #include <machine/autoconf.h>
     40 #include <machine/rpb.h>
     41 
     42 #include <dev/tc/tcvar.h>
     43 #include <alpha/tc/tc_conf.h>
     44 
     45 /* Definition of the driver for autoconfig. */
     46 int	tcasicmatch(struct device *, struct cfdata *, void *);
     47 void	tcasicattach(struct device *, struct device *, void *);
     48 
     49 struct cfattach tcasic_ca = {
     50 	sizeof (struct device), tcasicmatch, tcasicattach,
     51 };
     52 
     53 struct cfdriver tcasic_cd = {
     54 	NULL, "tcasic", DV_DULL,
     55 };
     56 
     57 int	tcasicprint __P((void *, const char *));
     58 
     59 extern int cputype;
     60 
     61 /* There can be only one. */
     62 int	tcasicfound;
     63 
     64 int
     65 tcasicmatch(parent, cfdata, aux)
     66 	struct device *parent;
     67 	struct cfdata *cfdata;
     68 	void *aux;
     69 {
     70 	struct confargs *ca = aux;
     71 
     72         /* Make sure that we're looking for a TurboChannel ASIC. */
     73         if (strcmp(ca->ca_name, tcasic_cd.cd_name))
     74                 return (0);
     75 
     76         /* Make sure that the system supports a TurboChannel ASIC. */
     77 	if ((cputype != ST_DEC_3000_500) && (cputype != ST_DEC_3000_300))
     78 		return (0);
     79 
     80 	if (tcasicfound)
     81 		return (0);
     82 
     83 	return (1);
     84 }
     85 
     86 void
     87 tcasicattach(parent, self, aux)
     88 	struct device *parent;
     89 	struct device *self;
     90 	void *aux;
     91 {
     92 	struct tcbus_attach_args tba;
     93 	void (*intr_setup) __P((void));
     94 	void (*iointr) __P((void *, unsigned long));
     95 
     96 	printf("\n");
     97 	tcasicfound = 1;
     98 
     99 	switch (cputype) {
    100 #ifdef DEC_3000_500
    101 	case ST_DEC_3000_500:
    102 
    103 		intr_setup = tc_3000_500_intr_setup;
    104 		iointr = tc_3000_500_iointr;
    105 
    106 		tba.tba_busname = "tc";
    107 		tba.tba_speed = TC_SPEED_25_MHZ;
    108 		tba.tba_nslots = tc_3000_500_nslots;
    109 		tba.tba_slots = tc_3000_500_slots;
    110 		if (hwrpb->rpb_variation & SV_GRAPHICS) {
    111 			tba.tba_nbuiltins = tc_3000_500_graphics_nbuiltins;
    112 			tba.tba_builtins = tc_3000_500_graphics_builtins;
    113 		} else {
    114 			tba.tba_nbuiltins = tc_3000_500_nographics_nbuiltins;
    115 			tba.tba_builtins = tc_3000_500_nographics_builtins;
    116 		}
    117 		tba.tba_intr_establish = tc_3000_500_intr_establish;
    118 		tba.tba_intr_disestablish = tc_3000_500_intr_disestablish;
    119 		break;
    120 #endif /* DEC_3000_500 */
    121 
    122 #ifdef DEC_3000_300
    123 	case ST_DEC_3000_300:
    124 
    125 		intr_setup = tc_3000_300_intr_setup;
    126 		iointr = tc_3000_300_iointr;
    127 
    128 		tba.tba_busname = "tc";
    129 		tba.tba_speed = TC_SPEED_12_5_MHZ;
    130 		tba.tba_nslots = tc_3000_300_nslots;
    131 		tba.tba_slots = tc_3000_300_slots;
    132 		tba.tba_nbuiltins = tc_3000_300_nbuiltins;
    133 		tba.tba_builtins = tc_3000_300_builtins;
    134 		tba.tba_intr_establish = tc_3000_300_intr_establish;
    135 		tba.tba_intr_disestablish = tc_3000_300_intr_disestablish;
    136 		break;
    137 #endif /* DEC_3000_300 */
    138 
    139 	default:
    140 		panic("tcasicattach: bad cputype");
    141 	}
    142 
    143 	tba.tba_memt = tc_bus_mem_init(NULL);
    144 
    145 	/* XXX XXX BEGIN XXX XXX */
    146 	{							/* XXX */
    147 		extern vm_offset_t alpha_XXX_dmamap_or;		/* XXX */
    148 		alpha_XXX_dmamap_or = 0;			/* XXX */
    149 	}							/* XXX */
    150 	/* XXX XXX END XXX XXX */
    151 
    152 	(*intr_setup)();
    153 	set_iointr(iointr);
    154 
    155 	config_found(self, &tba, tcasicprint);
    156 }
    157 
    158 int
    159 tcasicprint(aux, pnp)
    160 	void *aux;
    161 	const char *pnp;
    162 {
    163 
    164 	/* only TCs can attach to tcasics; easy. */
    165 	if (pnp)
    166 		printf("tc at %s", pnp);
    167 	return (UNCONF);
    168 }
    169