1 /* $NetBSD: console.c,v 1.46 2026/04/30 02:56:26 adrian 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 <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: console.c,v 1.46 2026/04/30 02:56:26 adrian Exp $"); 32 33 #include "opt_kgdb.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/termios.h> 38 #include <sys/device.h> 39 40 #include <sys/bus.h> 41 #include <machine/machtype.h> 42 43 #include <dev/cons.h> 44 #include <dev/arcbios/arcbios.h> 45 #include <dev/arcbios/arcbiosvar.h> 46 #include <dev/ic/comreg.h> 47 #include <dev/ic/comvar.h> 48 #include <dev/ic/i8042reg.h> 49 #include <dev/ic/pckbcvar.h> 50 51 #include <sgimips/gio/giovar.h> 52 #include <sgimips/hpc/hpcreg.h> 53 #include <sgimips/ioc/iocreg.h> 54 #include <sgimips/mace/macereg.h> 55 56 #include "com.h" 57 #include "scn.h" 58 #include "zsc.h" 59 #include "gio.h" 60 #include "pckbc.h" 61 #include "zskbd.h" 62 #include "crmfb.h" 63 64 #ifndef CONMODE 65 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 66 #endif 67 int comcnmode = CONMODE; 68 69 extern struct consdev scn_cn; 70 extern struct consdev zs_cn; 71 72 extern void zs_kgdb_init(void); 73 extern void zskbd_cnattach(int, int); 74 #if (NCRMFB > 0) 75 extern int crmfb_probe(void); 76 #endif 77 78 void kgdb_port_init(void); 79 static int scn_serial_init(const char *); 80 static int zs_serial_init(const char *); 81 static int gio_video_init(const char *); 82 static int mace_serial_init(const char *); 83 84 void 85 consinit(void) 86 { 87 const char *consdev; 88 89 /* Ask ARCS what it is using for console output. */ 90 consdev = arcbios_GetEnvironmentVariable("ConsoleOut"); 91 92 if (consdev == NULL) { 93 printf("WARNING: ConsoleOut environment variable not set\n"); 94 return; 95 } 96 97 switch (mach_type) { 98 case MACH_SGI_IP6 | MACH_SGI_IP10: 99 if (scn_serial_init(consdev)) 100 return; 101 break; 102 103 case MACH_SGI_IP12: 104 case MACH_SGI_IP20: 105 case MACH_SGI_IP22: 106 if (gio_video_init(consdev) || zs_serial_init(consdev)) 107 return; 108 break; 109 110 case MACH_SGI_IP32: 111 if (mace_serial_init(consdev)) 112 return; 113 #if (NCRMFB > 0) 114 if (crmfb_probe()) { 115 return; 116 } 117 #else 118 panic("this ip32 kernel does not contain framebuffer support."); 119 #endif 120 break; 121 122 default: 123 panic("consinit(): unknown machine type IP%d\n", mach_type); 124 break; 125 } 126 127 printf("Using ARCS for console I/O.\n"); 128 } 129 130 static int 131 scn_serial_init(const char *consdev) 132 { 133 #if (NSCN > 0) 134 if ((strlen(consdev) == 9) && (!strncmp(consdev, "serial", 6)) && 135 (consdev[7] == '0' || consdev[7] == '1')) { 136 cn_tab = &scn_cn; 137 (*cn_tab->cn_init)(cn_tab); 138 139 return (1); 140 } 141 #endif 142 143 return (0); 144 } 145 146 static int 147 zs_serial_init(const char *consdev) 148 { 149 #if (NZSC > 0) 150 if ((strlen(consdev) == 9) && (!strncmp(consdev, "serial", 6)) && 151 (consdev[7] == '0' || consdev[7] == '1')) { 152 cn_tab = &zs_cn; 153 (*cn_tab->cn_init)(cn_tab); 154 155 return (1); 156 } 157 #endif 158 159 return (0); 160 } 161 162 static int 163 gio_video_init(const char *consdev) 164 { 165 #if (NGIO > 0) 166 if (strcmp(consdev, "video()") == 0) { 167 /* 168 * XXX Assumes that if output is video() 169 * input must be keyboard(). 170 */ 171 if (gio_cnattach() != 0) 172 return (0); 173 174 switch(mach_type) { 175 case MACH_SGI_IP12: 176 case MACH_SGI_IP20: 177 #if (NZSKBD > 0) 178 /* XXX Hardcoded unit, channel */ 179 zskbd_cnattach(0, 0); 180 #endif 181 break; 182 183 case MACH_SGI_IP22: 184 #if (NPCKBC > 0) 185 /* XXX Hardcoded iotag, HPC address XXX */ 186 pckbc_cnattach(normal_memt, 187 HPC_BASE_ADDRESS_0 + 188 HPC3_PBUS_CH6_DEVREGS + IOC_KB_REGS, KBCMDP, 189 PCKBC_KBD_SLOT, 0); 190 #endif 191 break; 192 } 193 194 return (1); 195 } 196 #endif 197 198 return (0); 199 } 200 201 static int 202 mace_serial_init(const char *consdev) 203 { 204 #if (NCOM > 0) 205 const char *dbaud; 206 int speed; 207 u_int32_t base; 208 209 if ((strlen(consdev) == 9) && (!strncmp(consdev, "serial", 6)) && 210 (consdev[7] == '0' || consdev[7] == '1')) { 211 /* Get comm speed from ARCS */ 212 dbaud = arcbios_GetEnvironmentVariable("dbaud"); 213 speed = strtoul(dbaud, NULL, 10); 214 base = (consdev[7] == '0') ? MACE_ISA_SER1_BASE : 215 MACE_ISA_SER2_BASE; 216 217 delay(10000); 218 219 /* XXX: hardcoded MACE iotag */ 220 mace_init_bus(); 221 if (comcnattach(mace_isa_memt, MACE_BASE + base, 222 speed, COM_FREQ, COM_TYPE_NORMAL, comcnmode) == 0) 223 return (1); 224 } 225 #endif 226 227 return (0); 228 } 229 230 #if defined(KGDB) 231 void 232 kgdb_port_init(void) 233 { 234 # if (NCOM > 0) 235 # define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) 236 if (mach_type == MACH_SGI_IP32) { 237 mace_init_bus(); 238 com_kgdb_attach(mace_isa_memt, 0xbf398000, 9600, COM_FREQ, COM_TYPE_NORMAL, 239 KGDB_DEVMODE); 240 } 241 # endif /* (NCOM > 0) */ 242 243 # if (NZSC > 0) 244 switch(mach_type) { 245 case MACH_SGI_IP12: 246 case MACH_SGI_IP20: 247 case MACH_SGI_IP22: 248 zs_kgdb_init(); /* XXX */ 249 } 250 # endif 251 } 252 #endif /* KGDB */ 253
Indexes created Sun Oct 25 00:26:45 UTC 2026