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tcasic.c revision 1.1 
      1 /*	$NetBSD: tcasic.c,v 1.1 1995/12/20 00:43:34 cgd Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1994, 1995 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 <sys/param.h>
     31 #include <sys/device.h>
     32 
     33 #include <machine/autoconf.h>
     34 #include <machine/rpb.h>
     35 
     36 #include <dev/tc/tcvar.h>
     37 #include <alpha/tc/tc_conf.h>
     38 
     39 /* Definition of the driver for autoconfig. */
     40 int	tcasicmatch(struct device *, void *, void *);
     41 void	tcasicattach(struct device *, struct device *, void *);
     42 struct cfdriver tcasiccd =
     43     { NULL, "tcasic", tcasicmatch, tcasicattach, DV_DULL,
     44     sizeof (struct device) };
     45 
     46 int	tcasicprint __P((void *, char *));
     47 
     48 extern int cputype;
     49 
     50 /* There can be only one. */
     51 int	tcasicfound;
     52 
     53 int
     54 tcasicmatch(parent, cfdata, aux)
     55 	struct device *parent;
     56 	void *cfdata;
     57 	void *aux;
     58 {
     59 	struct confargs *ca = aux;
     60 
     61         /* Make sure that we're looking for a TurboChannel ASIC. */
     62         if (strcmp(ca->ca_name, tcasiccd.cd_name))
     63                 return (0);
     64 
     65         /* Make sure that the system supports a TurboChannel ASIC. */
     66 	if ((cputype != ST_DEC_3000_500) && (cputype != ST_DEC_3000_300))
     67 		return (0);
     68 
     69 	if (tcasicfound)
     70 		return (0);
     71 
     72 	return (1);
     73 }
     74 
     75 void
     76 tcasicattach(parent, self, aux)
     77 	struct device *parent;
     78 	struct device *self;
     79 	void *aux;
     80 {
     81 	struct tc_attach_args tc;
     82 	void (*intr_setup) __P((void));
     83 	void (*iointr) __P((void *, int));
     84 
     85 	tcasicfound = 1;
     86 
     87 	switch (cputype) {
     88 #ifdef DEC_3000_500
     89 	case ST_DEC_3000_500:
     90 		printf(": 25MHz\n");
     91 
     92 		intr_setup = tc_3000_500_intr_setup;
     93 		iointr = tc_3000_500_iointr;
     94 
     95 		tc.tca_nslots = tc_3000_500_nslots;
     96 		tc.tca_slots = tc_3000_500_slots;
     97 		tc.tca_nbuiltins = tc_3000_500_nbuiltins;
     98 		tc.tca_builtins = tc_3000_500_builtins;
     99 		tc.tca_intr_establish = tc_3000_500_intr_establish;
    100 		tc.tca_intr_disestablish = tc_3000_500_intr_disestablish;
    101 		break;
    102 #endif /* DEC_3000_500 */
    103 
    104 #ifdef DEC_3000_300
    105 	case ST_DEC_3000_300:
    106 		printf(": 12.5MHz\n");
    107 
    108 		intr_setup = tc_3000_300_intr_setup;
    109 		iointr = tc_3000_300_iointr;
    110 
    111 		tc.tca_nslots = tc_3000_300_nslots;
    112 		tc.tca_slots = tc_3000_300_slots;
    113 		tc.tca_nbuiltins = tc_3000_300_nbuiltins;
    114 		tc.tca_builtins = tc_3000_300_builtins;
    115 		tc.tca_intr_establish = tc_3000_300_intr_establish;
    116 		tc.tca_intr_disestablish = tc_3000_300_intr_disestablish;
    117 		break;
    118 #endif /* DEC_3000_300 */
    119 
    120 	default:
    121 		printf("\n");
    122 		panic("tcasicattach: bad cputype");
    123 	}
    124 
    125 	(*intr_setup)();
    126 	set_iointr(iointr);
    127 
    128 	config_found(self, &tc, tcasicprint);
    129 }
    130 
    131 int
    132 tcasicprint(aux, pnp)
    133 	void *aux;
    134 	char *pnp;
    135 {
    136 
    137 	/* only TCs can attach to tcasics; easy. */
    138 	if (pnp)
    139 		printf("tc at %s", pnp);
    140 	return (UNCONF);
    141 }
    142