1 /* $NetBSD: dec_550.c,v 1.32 2009/03/14 15:35:59 dsl Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1996, 1997 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@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 * Additional Copyright (c) 1997 by Matthew Jacob for NASA/Ames Research Center 31 */ 32 33 #include "opt_kgdb.h" 34 35 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 36 37 __KERNEL_RCSID(0, "$NetBSD: dec_550.c,v 1.32 2009/03/14 15:35:59 dsl Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/termios.h> 43 #include <sys/conf.h> 44 #include <dev/cons.h> 45 46 #include <uvm/uvm_extern.h> 47 48 #include <machine/rpb.h> 49 #include <machine/autoconf.h> 50 #include <machine/cpuconf.h> 51 #include <machine/bus.h> 52 53 #include <dev/ic/comreg.h> 54 #include <dev/ic/comvar.h> 55 56 #include <dev/isa/isareg.h> 57 #include <dev/isa/isavar.h> 58 #include <dev/ic/i8042reg.h> 59 #include <dev/ic/pckbcvar.h> 60 #include <dev/pci/pcireg.h> 61 #include <dev/pci/pcivar.h> 62 63 #include <alpha/pci/ciareg.h> 64 #include <alpha/pci/ciavar.h> 65 66 #include <dev/scsipi/scsi_all.h> 67 #include <dev/scsipi/scsipi_all.h> 68 #include <dev/scsipi/scsiconf.h> 69 #include <dev/ata/atavar.h> 70 71 /* Write this to Pyxis General Purpose Output to turn off the power. */ 72 #define DEC_550_PYXIS_GPO_POWERDOWN 0x00000400 73 74 #include "pckbd.h" 75 76 #ifndef CONSPEED 77 #define CONSPEED TTYDEF_SPEED 78 #endif 79 static int comcnrate = CONSPEED; 80 81 #define DR_VERBOSE(f) while (0) 82 83 void dec_550_init(void); 84 static void dec_550_cons_init(void); 85 static void dec_550_device_register(struct device *, void *); 86 static void dec_550_powerdown(void); 87 88 #ifdef KGDB 89 #include <machine/db_machdep.h> 90 91 static const char *kgdb_devlist[] = { 92 "com", 93 NULL, 94 }; 95 #endif /* KGDB */ 96 97 void 98 dec_550_init() 99 { 100 101 platform.family = "Digital Personal Workstation"; 102 103 if ((platform.model = alpha_dsr_sysname()) == NULL) { 104 /* XXX Don't know the system variations, yet. */ 105 platform.model = alpha_unknown_sysname(); 106 } 107 108 platform.iobus = "cia"; 109 platform.cons_init = dec_550_cons_init; 110 platform.device_register = dec_550_device_register; 111 platform.powerdown = dec_550_powerdown; 112 113 /* 114 * If Miata systems have a secondary cache, it's 2MB. 115 */ 116 uvmexp.ncolors = atop(2 * 1024 * 1024); 117 } 118 119 static void 120 dec_550_cons_init() 121 { 122 struct ctb *ctb; 123 struct cia_config *ccp; 124 extern struct cia_config cia_configuration; 125 126 ccp = &cia_configuration; 127 cia_init(ccp, 0); 128 129 ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off); 130 131 switch (ctb->ctb_term_type) { 132 case CTB_PRINTERPORT: 133 /* serial console ... */ 134 /* XXX */ 135 { 136 /* 137 * Delay to allow PROM putchars to complete. 138 * FIFO depth * character time, 139 * character time = (1000000 / (defaultrate / 10)) 140 */ 141 DELAY(160000000 / comcnrate); 142 143 if(comcnattach(&ccp->cc_iot, 0x3f8, comcnrate, 144 COM_FREQ, COM_TYPE_NORMAL, 145 (TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8)) 146 panic("can't init serial console"); 147 148 break; 149 } 150 151 case CTB_GRAPHICS: 152 #if NPCKBD > 0 153 /* display console ... */ 154 /* XXX */ 155 (void) pckbc_cnattach(&ccp->cc_iot, IO_KBD, KBCMDP, 156 PCKBC_KBD_SLOT); 157 158 if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) == 159 CTB_TURBOSLOT_TYPE_ISA) 160 isa_display_console(&ccp->cc_iot, &ccp->cc_memt); 161 else 162 pci_display_console(&ccp->cc_iot, &ccp->cc_memt, 163 &ccp->cc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot), 164 CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0); 165 #else 166 panic("not configured to use display && keyboard console"); 167 #endif 168 break; 169 170 default: 171 printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type); 172 printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot); 173 174 panic("consinit: unknown console type %ld", 175 ctb->ctb_term_type); 176 } 177 #ifdef KGDB 178 /* Attach the KGDB device. */ 179 alpha_kgdb_init(kgdb_devlist, &ccp->cc_iot); 180 #endif /* KGDB */ 181 } 182 183 static void 184 dec_550_device_register(struct device *dev, void *aux) 185 { 186 static int found, initted, diskboot, netboot; 187 static struct device *pcidev, *ctrlrdev; 188 struct bootdev_data *b = bootdev_data; 189 struct device *parent = device_parent(dev); 190 191 if (found) 192 return; 193 194 if (!initted) { 195 diskboot = (strcasecmp(b->protocol, "SCSI") == 0) || 196 (strcasecmp(b->protocol, "IDE") == 0); 197 netboot = (strcasecmp(b->protocol, "BOOTP") == 0) || 198 (strcasecmp(b->protocol, "MOP") == 0); 199 DR_VERBOSE(printf("diskboot = %d, netboot = %d\n", diskboot, 200 netboot)); 201 initted = 1; 202 } 203 204 if (pcidev == NULL) { 205 if (!device_is_a(dev, "pci")) 206 return; 207 else { 208 struct pcibus_attach_args *pba = aux; 209 210 if ((b->slot / 1000) != pba->pba_bus) 211 return; 212 213 pcidev = dev; 214 DR_VERBOSE(printf("\npcidev = %s\n", dev->dv_xname)); 215 return; 216 } 217 } 218 219 if (ctrlrdev == NULL) { 220 if (parent != pcidev) 221 return; 222 else { 223 struct pci_attach_args *pa = aux; 224 int slot; 225 226 slot = pa->pa_bus * 1000 + pa->pa_function * 100 + 227 pa->pa_device; 228 if (b->slot != slot) 229 return; 230 231 if (netboot) { 232 booted_device = dev; 233 DR_VERBOSE(printf("\nbooted_device = %s\n", 234 dev->dv_xname)); 235 found = 1; 236 } else { 237 ctrlrdev = dev; 238 DR_VERBOSE(printf("\nctrlrdev = %s\n", 239 dev->dv_xname)); 240 } 241 return; 242 } 243 } 244 245 if (!diskboot) 246 return; 247 248 if (device_is_a(dev, "sd") || 249 device_is_a(dev, "st") || 250 device_is_a(dev, "cd")) { 251 struct scsipibus_attach_args *sa = aux; 252 struct scsipi_periph *periph = sa->sa_periph; 253 int unit; 254 255 if (device_parent(parent) != ctrlrdev) 256 return; 257 258 unit = periph->periph_target * 100 + periph->periph_lun; 259 if (b->unit != unit) 260 return; 261 if (b->channel != periph->periph_channel->chan_channel) 262 return; 263 264 /* we've found it! */ 265 booted_device = dev; 266 DR_VERBOSE(printf("\nbooted_device = %s\n", dev->dv_xname)); 267 found = 1; 268 } 269 270 /* 271 * Support to boot from IDE drives. 272 */ 273 if (device_is_a(dev, "wd")) { 274 struct ata_device *adev = aux; 275 276 if (!device_is_a(parent, "atabus")) 277 return; 278 if (device_parent(parent) != ctrlrdev) 279 return; 280 281 DR_VERBOSE(printf("\nAtapi info: drive: %d, channel %d\n", 282 adev->adev_drv_data->drive, adev->adev_channel)); 283 DR_VERBOSE(printf("Bootdev info: unit: %d, channel: %d\n", 284 b->unit, b->channel)); 285 if (b->unit != adev->adev_drv_data->drive || 286 b->channel != adev->adev_channel) 287 return; 288 289 /* we've found it! */ 290 booted_device = dev; 291 DR_VERBOSE(printf("booted_device = %s\n", dev->dv_xname)); 292 found = 1; 293 } 294 } 295 296 static void 297 dec_550_powerdown() 298 { 299 300 REGVAL(PYXIS_GPO) = DEC_550_PYXIS_GPO_POWERDOWN; 301 alpha_mb(); 302 } 303