tcasic.c revision 1.29
1 /* $NetBSD: tcasic.c,v 1.29 2000/06/04 19:14:30 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 "opt_dec_3000_300.h" 31 #include "opt_dec_3000_500.h" 32 33 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 34 35 __KERNEL_RCSID(0, "$NetBSD: tcasic.c,v 1.29 2000/06/04 19:14:30 cgd Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 #include <machine/autoconf.h> 42 #include <machine/rpb.h> 43 #include <machine/alpha.h> 44 #include <machine/intrcnt.h> 45 46 #include <dev/tc/tcvar.h> 47 #include <alpha/tc/tc_conf.h> 48 49 /* Definition of the driver for autoconfig. */ 50 int tcasicmatch(struct device *, struct cfdata *, void *); 51 void tcasicattach(struct device *, struct device *, void *); 52 53 struct cfattach tcasic_ca = { 54 sizeof (struct device), tcasicmatch, tcasicattach, 55 }; 56 57 extern struct cfdriver tcasic_cd; 58 59 int tcasicprint __P((void *, const char *)); 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 mainbus_attach_args *ma = aux; 71 72 /* Make sure that we're looking for a TurboChannel ASIC. */ 73 if (strcmp(ma->ma_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_speed = TC_SPEED_25_MHZ; 107 tba.tba_nslots = tc_3000_500_nslots; 108 tba.tba_slots = tc_3000_500_slots; 109 if (hwrpb->rpb_variation & SV_GRAPHICS) { 110 tba.tba_nbuiltins = tc_3000_500_graphics_nbuiltins; 111 tba.tba_builtins = tc_3000_500_graphics_builtins; 112 } else { 113 tba.tba_nbuiltins = tc_3000_500_nographics_nbuiltins; 114 tba.tba_builtins = tc_3000_500_nographics_builtins; 115 } 116 tba.tba_intr_evcnt = tc_3000_500_intr_evcnt; 117 tba.tba_intr_establish = tc_3000_500_intr_establish; 118 tba.tba_intr_disestablish = tc_3000_500_intr_disestablish; 119 tba.tba_get_dma_tag = tc_dma_get_tag_3000_500; 120 121 /* Do 3000/500-specific DMA setup now. */ 122 tc_dma_init_3000_500(tc_3000_500_nslots); 123 break; 124 #endif /* DEC_3000_500 */ 125 126 #ifdef DEC_3000_300 127 case ST_DEC_3000_300: 128 129 intr_setup = tc_3000_300_intr_setup; 130 iointr = tc_3000_300_iointr; 131 132 tba.tba_speed = TC_SPEED_12_5_MHZ; 133 tba.tba_nslots = tc_3000_300_nslots; 134 tba.tba_slots = tc_3000_300_slots; 135 tba.tba_nbuiltins = tc_3000_300_nbuiltins; 136 tba.tba_builtins = tc_3000_300_builtins; 137 tba.tba_intr_evcnt = tc_3000_300_intr_evcnt; 138 tba.tba_intr_establish = tc_3000_300_intr_establish; 139 tba.tba_intr_disestablish = tc_3000_300_intr_disestablish; 140 tba.tba_get_dma_tag = tc_dma_get_tag_3000_300; 141 break; 142 #endif /* DEC_3000_300 */ 143 144 default: 145 panic("tcasicattach: bad cputype"); 146 } 147 148 tba.tba_busname = "tc"; 149 tba.tba_memt = tc_bus_mem_init(NULL); 150 151 tc_dma_init(); 152 153 (*intr_setup)(); 154 set_iointr(iointr); 155 156 config_found(self, &tba, tcasicprint); 157 } 158 159 int 160 tcasicprint(aux, pnp) 161 void *aux; 162 const char *pnp; 163 { 164 165 /* only TCs can attach to tcasics; easy. */ 166 if (pnp) 167 printf("tc at %s", pnp); 168 return (UNCONF); 169 } 170 171 #include "wsdisplay.h" 172 173 #if NWSDISPLAY > 0 174 175 #include "cfb.h" 176 #include "sfb.h" 177 178 extern int sfb_cnattach __P((tc_addr_t)); 179 extern int cfb_cnattach __P((tc_addr_t)); 180 extern int tc_checkslot __P((tc_addr_t, char *)); 181 182 /* 183 * tc_fb_cnattach -- 184 * Attempt to attach the appropriate display driver to the 185 * output console. 186 */ 187 int 188 tc_fb_cnattach(tcaddr) 189 tc_addr_t tcaddr; 190 { 191 char tcname[TC_ROM_LLEN]; 192 193 if (tc_badaddr(tcaddr) || (tc_checkslot(tcaddr, tcname) == 0)) { 194 return EINVAL; 195 } 196 197 #if NSFB > 0 198 if (strncmp("PMAGB-BA", tcname, TC_ROM_LLEN) == 0) { 199 sfb_cnattach(tcaddr); 200 return 0; 201 } 202 #endif 203 #if NCFB > 0 204 if (strncmp("PMAG-BA ", tcname, TC_ROM_LLEN) == 0) { 205 cfb_cnattach(tcaddr); 206 return 0; 207 } 208 #endif 209 return ENXIO; 210 } 211 #endif /* if NWSDISPLAY > 0 */ 212
Indexes created Thu Oct 02 10:09:58 GMT 2025