consinit.c revision 1.1.10.3
1 1.1.10.3 jdolecek /* $NetBSD: consinit.c,v 1.1.10.3 2002/10/10 18:36:52 jdolecek Exp $ */ 2 1.1.10.2 jdolecek 3 1.1.10.2 jdolecek /*- 4 1.1.10.2 jdolecek * Copyright (c) 2001 Matthew Fredette 5 1.1.10.2 jdolecek * Copyright (c) 1999 Eduardo E. Horvath 6 1.1.10.2 jdolecek * All rights reserved. 7 1.1.10.2 jdolecek * 8 1.1.10.2 jdolecek * Redistribution and use in source and binary forms, with or without 9 1.1.10.2 jdolecek * modification, are permitted provided that the following conditions 10 1.1.10.2 jdolecek * are met: 11 1.1.10.2 jdolecek * 1. Redistributions of source code must retain the above copyright 12 1.1.10.2 jdolecek * notice, this list of conditions and the following disclaimer. 13 1.1.10.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 14 1.1.10.2 jdolecek * notice, this list of conditions and the following disclaimer in the 15 1.1.10.2 jdolecek * documentation and/or other materials provided with the distribution. 16 1.1.10.2 jdolecek * 3. The name of the author may not be used to endorse or promote products 17 1.1.10.2 jdolecek * derived from this software without specific prior written permission. 18 1.1.10.2 jdolecek * 19 1.1.10.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 1.1.10.2 jdolecek * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 1.1.10.2 jdolecek * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 1.1.10.2 jdolecek * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 1.1.10.2 jdolecek * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 1.1.10.2 jdolecek * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 1.1.10.2 jdolecek * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 1.1.10.2 jdolecek * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 1.1.10.2 jdolecek * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 1.1.10.2 jdolecek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 1.1.10.2 jdolecek * SUCH DAMAGE. 30 1.1.10.2 jdolecek */ 31 1.1.10.2 jdolecek 32 1.1.10.2 jdolecek #include "opt_ddb.h" 33 1.1.10.2 jdolecek #include "opt_kgdb.h" 34 1.1.10.2 jdolecek #include "pcons.h" 35 1.1.10.2 jdolecek #include "kbd.h" 36 1.1.10.2 jdolecek #include "zs.h" 37 1.1.10.2 jdolecek 38 1.1.10.2 jdolecek #include <sys/param.h> 39 1.1.10.2 jdolecek #include <sys/systm.h> 40 1.1.10.2 jdolecek #include <sys/conf.h> 41 1.1.10.2 jdolecek #include <sys/device.h> 42 1.1.10.2 jdolecek #include <sys/file.h> 43 1.1.10.2 jdolecek #include <sys/ioctl.h> 44 1.1.10.2 jdolecek #include <sys/kernel.h> 45 1.1.10.2 jdolecek #include <sys/proc.h> 46 1.1.10.2 jdolecek #include <sys/tty.h> 47 1.1.10.2 jdolecek #include <sys/time.h> 48 1.1.10.2 jdolecek #include <sys/syslog.h> 49 1.1.10.2 jdolecek #include <sys/kgdb.h> 50 1.1.10.2 jdolecek 51 1.1.10.2 jdolecek #include <machine/autoconf.h> 52 1.1.10.2 jdolecek #include <machine/promlib.h> 53 1.1.10.2 jdolecek #include <machine/cpu.h> 54 1.1.10.2 jdolecek #include <machine/eeprom.h> 55 1.1.10.2 jdolecek #include <machine/psl.h> 56 1.1.10.2 jdolecek #include <machine/z8530var.h> 57 1.1.10.2 jdolecek 58 1.1.10.2 jdolecek #include <dev/cons.h> 59 1.1.10.2 jdolecek 60 1.1.10.2 jdolecek #include <sun2/dev/cons.h> 61 1.1.10.2 jdolecek 62 1.1.10.2 jdolecek static void prom_cnprobe __P((struct consdev *)); 63 1.1.10.2 jdolecek static void prom_cninit __P((struct consdev *)); 64 1.1.10.2 jdolecek int prom_cngetc __P((dev_t)); 65 1.1.10.2 jdolecek static void prom_cnputc __P((dev_t, int)); 66 1.1.10.2 jdolecek static void prom_cnpollc __P((dev_t, int)); 67 1.1.10.2 jdolecek static void prom_cnputc __P((dev_t, int)); 68 1.1.10.2 jdolecek 69 1.1.10.2 jdolecek #ifdef PROM_OBP_V2 70 1.1.10.2 jdolecek /* 71 1.1.10.2 jdolecek * The following several variables are related to 72 1.1.10.2 jdolecek * the configuration process, and are used in initializing 73 1.1.10.2 jdolecek * the machine. 74 1.1.10.2 jdolecek */ 75 1.1.10.2 jdolecek int prom_stdin_node; /* node ID of ROM's console input device */ 76 1.1.10.2 jdolecek int prom_stdout_node; /* node ID of ROM's console output device */ 77 1.1.10.2 jdolecek char prom_stdin_args[16]; 78 1.1.10.2 jdolecek char prom_stdout_args[16]; 79 1.1.10.2 jdolecek #endif /* PROM_OBP_V2 */ 80 1.1.10.2 jdolecek 81 1.1.10.2 jdolecek /* 82 1.1.10.2 jdolecek * The console is set to this one initially, 83 1.1.10.2 jdolecek * which lets us use the PROM until consinit() 84 1.1.10.2 jdolecek * is called to select a real console. 85 1.1.10.2 jdolecek */ 86 1.1.10.2 jdolecek struct consdev consdev_prom = { 87 1.1.10.2 jdolecek prom_cnprobe, 88 1.1.10.2 jdolecek prom_cninit, 89 1.1.10.2 jdolecek prom_cngetc, 90 1.1.10.2 jdolecek prom_cnputc, 91 1.1.10.2 jdolecek prom_cnpollc, 92 1.1.10.2 jdolecek NULL, 93 1.1.10.2 jdolecek }; 94 1.1.10.2 jdolecek 95 1.1.10.2 jdolecek /* 96 1.1.10.2 jdolecek * The console table pointer is statically initialized 97 1.1.10.2 jdolecek * to point to the PROM (output only) table, so that 98 1.1.10.2 jdolecek * early calls to printf will work. 99 1.1.10.2 jdolecek */ 100 1.1.10.2 jdolecek struct consdev *cn_tab = &consdev_prom; 101 1.1.10.2 jdolecek 102 1.1.10.2 jdolecek void 103 1.1.10.2 jdolecek prom_cnprobe(cd) 104 1.1.10.2 jdolecek struct consdev *cd; 105 1.1.10.2 jdolecek { 106 1.1.10.2 jdolecek #if NPCONS > 0 107 1.1.10.3 jdolecek extern const struct cdevsw pcons_cdevsw; 108 1.1.10.2 jdolecek 109 1.1.10.3 jdolecek cd->cn_dev = makedev(cdevsw_lookup_major(&pcons_cdevsw), 0); 110 1.1.10.2 jdolecek cd->cn_pri = CN_INTERNAL; 111 1.1.10.2 jdolecek #endif 112 1.1.10.2 jdolecek } 113 1.1.10.2 jdolecek 114 1.1.10.2 jdolecek int 115 1.1.10.2 jdolecek prom_cngetc(dev) 116 1.1.10.2 jdolecek dev_t dev; 117 1.1.10.2 jdolecek { 118 1.1.10.2 jdolecek int ch; 119 1.1.10.2 jdolecek #ifdef DDB 120 1.1.10.2 jdolecek static int nplus = 0; 121 1.1.10.2 jdolecek #endif 122 1.1.10.2 jdolecek 123 1.1.10.2 jdolecek ch = prom_getchar(); 124 1.1.10.2 jdolecek #ifdef DDB 125 1.1.10.2 jdolecek if (ch == '+') { 126 1.1.10.2 jdolecek if (nplus++ > 3) Debugger(); 127 1.1.10.2 jdolecek } else nplus = 0; 128 1.1.10.2 jdolecek #endif 129 1.1.10.2 jdolecek return ch; 130 1.1.10.2 jdolecek } 131 1.1.10.2 jdolecek 132 1.1.10.2 jdolecek static void 133 1.1.10.2 jdolecek prom_cninit(cn) 134 1.1.10.2 jdolecek struct consdev *cn; 135 1.1.10.2 jdolecek { 136 1.1.10.2 jdolecek } 137 1.1.10.2 jdolecek 138 1.1.10.2 jdolecek /* 139 1.1.10.2 jdolecek * PROM console output putchar. 140 1.1.10.2 jdolecek */ 141 1.1.10.2 jdolecek static void 142 1.1.10.2 jdolecek prom_cnputc(dev, c) 143 1.1.10.2 jdolecek dev_t dev; 144 1.1.10.2 jdolecek int c; 145 1.1.10.2 jdolecek { 146 1.1.10.2 jdolecek int s; 147 1.1.10.2 jdolecek 148 1.1.10.2 jdolecek s = splhigh(); 149 1.1.10.2 jdolecek prom_putchar(c); 150 1.1.10.2 jdolecek splx(s); 151 1.1.10.2 jdolecek } 152 1.1.10.2 jdolecek 153 1.1.10.2 jdolecek void 154 1.1.10.2 jdolecek prom_cnpollc(dev, on) 155 1.1.10.2 jdolecek dev_t dev; 156 1.1.10.2 jdolecek int on; 157 1.1.10.2 jdolecek { 158 1.1.10.2 jdolecek if (on) { 159 1.1.10.2 jdolecek /* Entering debugger. */ 160 1.1.10.2 jdolecek #if NFB > 0 161 1.1.10.2 jdolecek fb_unblank(); 162 1.1.10.2 jdolecek #endif 163 1.1.10.2 jdolecek } else { 164 1.1.10.2 jdolecek /* Resuming kernel. */ 165 1.1.10.2 jdolecek } 166 1.1.10.2 jdolecek #if NPCONS > 0 167 1.1.10.2 jdolecek pcons_cnpollc(dev, on); 168 1.1.10.2 jdolecek #endif 169 1.1.10.2 jdolecek } 170 1.1.10.2 jdolecek 171 1.1.10.2 jdolecek /*****************************************************************/ 172 1.1.10.2 jdolecek 173 1.1.10.2 jdolecek #ifdef DEBUG 174 1.1.10.2 jdolecek #define DBPRINT(x) prom_printf x 175 1.1.10.2 jdolecek #else 176 1.1.10.2 jdolecek #define DBPRINT(x) 177 1.1.10.2 jdolecek #endif 178 1.1.10.2 jdolecek 179 1.1.10.2 jdolecek #ifdef notyet /* PROM_OBP_V2 */ 180 1.1.10.2 jdolecek void 181 1.1.10.2 jdolecek prom_get_device_args(prop, dev, dev_sz, args, args_sz) 182 1.1.10.2 jdolecek const char *prop; 183 1.1.10.2 jdolecek char *dev; 184 1.1.10.2 jdolecek unsigned int dev_sz; 185 1.1.10.2 jdolecek char *args; 186 1.1.10.2 jdolecek unsigned int args_sz; 187 1.1.10.2 jdolecek { 188 1.1.10.2 jdolecek char *cp, buffer[128]; 189 1.1.10.2 jdolecek 190 1.1.10.2 jdolecek getpropstringA(prom_findroot(), (char *)prop, buffer, sizeof buffer); 191 1.1.10.2 jdolecek 192 1.1.10.2 jdolecek /* 193 1.1.10.2 jdolecek * Extract device-specific arguments from a PROM device path (if any) 194 1.1.10.2 jdolecek */ 195 1.1.10.2 jdolecek cp = buffer + strlen(buffer); 196 1.1.10.2 jdolecek while (cp >= buffer) { 197 1.1.10.2 jdolecek if (*cp == ':') { 198 1.1.10.2 jdolecek strncpy(args, cp+1, args_sz); 199 1.1.10.2 jdolecek *cp = '\0'; 200 1.1.10.2 jdolecek strncpy(dev, buffer, dev_sz); 201 1.1.10.2 jdolecek break; 202 1.1.10.2 jdolecek } 203 1.1.10.2 jdolecek cp--; 204 1.1.10.2 jdolecek } 205 1.1.10.2 jdolecek } 206 1.1.10.2 jdolecek #endif /* PROM_OBP_V2 */ 207 1.1.10.2 jdolecek 208 1.1.10.2 jdolecek /* 209 1.1.10.2 jdolecek * This function replaces sys/dev/cninit.c 210 1.1.10.2 jdolecek * Determine which device is the console using 211 1.1.10.2 jdolecek * the PROM "input source" and "output sink". 212 1.1.10.2 jdolecek */ 213 1.1.10.2 jdolecek void 214 1.1.10.2 jdolecek consinit() 215 1.1.10.2 jdolecek { 216 1.1.10.2 jdolecek #ifdef notyet /* PROM_OBP_V2 */ 217 1.1.10.2 jdolecek char buffer[128]; 218 1.1.10.2 jdolecek #endif /* PROM_OBP_V2 */ 219 1.1.10.2 jdolecek char *consname = "unknown"; 220 1.1.10.3 jdolecek #if KGDB 221 1.1.10.3 jdolecek #if NZS > 0 222 1.1.10.3 jdolecek extern const struct cdevsw zstty_cdevsw; 223 1.1.10.3 jdolecek #endif 224 1.1.10.3 jdolecek #endif 225 1.1.10.2 jdolecek 226 1.1.10.2 jdolecek DBPRINT(("consinit()\r\n")); 227 1.1.10.2 jdolecek if (cn_tab != &consdev_prom) return; 228 1.1.10.2 jdolecek 229 1.1.10.2 jdolecek switch(prom_version()) { 230 1.1.10.2 jdolecek #ifdef PROM_OLDMON 231 1.1.10.2 jdolecek case PROM_OLDMON: 232 1.1.10.2 jdolecek case PROM_OBP_V0: 233 1.1.10.2 jdolecek switch(prom_stdin()) { 234 1.1.10.2 jdolecek case PROMDEV_KBD: 235 1.1.10.2 jdolecek consname = "keyboard/display"; 236 1.1.10.2 jdolecek break; 237 1.1.10.2 jdolecek case PROMDEV_TTYA: 238 1.1.10.2 jdolecek consname = "ttya"; 239 1.1.10.2 jdolecek break; 240 1.1.10.2 jdolecek case PROMDEV_TTYB: 241 1.1.10.2 jdolecek consname = "ttyb"; 242 1.1.10.2 jdolecek break; 243 1.1.10.2 jdolecek } 244 1.1.10.2 jdolecek break; 245 1.1.10.2 jdolecek #endif /* PROM_OLDMON */ 246 1.1.10.2 jdolecek 247 1.1.10.2 jdolecek #ifdef notyet /* PROM_OBP_V2 */ 248 1.1.10.2 jdolecek case PROM_OBP_V2: 249 1.1.10.2 jdolecek case PROM_OBP_V3: 250 1.1.10.2 jdolecek case PROM_OPENFIRM: 251 1.1.10.2 jdolecek 252 1.1.10.2 jdolecek /* Save PROM arguments for device matching */ 253 1.1.10.2 jdolecek prom_get_device_args("stdin-path", 254 1.1.10.2 jdolecek buffer, 255 1.1.10.2 jdolecek sizeof(buffer), 256 1.1.10.2 jdolecek prom_stdin_args, 257 1.1.10.2 jdolecek sizeof(prom_stdin_args)); 258 1.1.10.2 jdolecek prom_get_device_args("stdout-path", 259 1.1.10.2 jdolecek buffer, 260 1.1.10.2 jdolecek sizeof(buffer), 261 1.1.10.2 jdolecek prom_stdout_args, 262 1.1.10.2 jdolecek sizeof(prom_stdout_args)); 263 1.1.10.2 jdolecek 264 1.1.10.2 jdolecek /* 265 1.1.10.2 jdolecek * Translate the STDIO package instance (`ihandle') -- that 266 1.1.10.2 jdolecek * the PROM has already opened for us -- to a device tree 267 1.1.10.2 jdolecek * node (i.e. a `phandle'). 268 1.1.10.2 jdolecek */ 269 1.1.10.2 jdolecek DBPRINT(("stdin instance = %x\r\n", prom_stdin())); 270 1.1.10.2 jdolecek if ((prom_stdin_node = prom_instance_to_package(prom_stdin())) == 0) { 271 1.1.10.2 jdolecek printf("WARNING: no PROM stdin\n"); 272 1.1.10.2 jdolecek } 273 1.1.10.2 jdolecek DBPRINT(("stdin package = %x\r\n", prom_stdin_node)); 274 1.1.10.2 jdolecek 275 1.1.10.2 jdolecek DBPRINT(("stdout instance = %x\r\n", prom_stdout())); 276 1.1.10.2 jdolecek if ((prom_stdout_node = prom_instance_to_package(prom_stdout())) == 0) { 277 1.1.10.2 jdolecek printf("WARNING: no PROM stdout\n"); 278 1.1.10.2 jdolecek } 279 1.1.10.2 jdolecek DBPRINT(("stdout package = %x\r\n", prom_stdout_node)); 280 1.1.10.2 jdolecek DBPRINT(("buffer @ %p\r\n", buffer)); 281 1.1.10.2 jdolecek 282 1.1.10.2 jdolecek if (prom_stdin_node && prom_node_has_property(prom_stdin_node, "keyboard") { 283 1.1.10.2 jdolecek #if NKBD == 0 284 1.1.10.2 jdolecek printf("cninit: kdb/display not configured\n"); 285 1.1.10.2 jdolecek #endif 286 1.1.10.2 jdolecek consname = "keyboard/display"; 287 1.1.10.2 jdolecek } else if (prom_stdout_node) 288 1.1.10.2 jdolecek consname = buffer; 289 1.1.10.2 jdolecek #endif /* PROM_OBP_V2 */ 290 1.1.10.2 jdolecek } 291 1.1.10.2 jdolecek printf("console is %s\n", consname); 292 1.1.10.2 jdolecek 293 1.1.10.2 jdolecek /* Initialize PROM console */ 294 1.1.10.2 jdolecek (*cn_tab->cn_probe)(cn_tab); 295 1.1.10.2 jdolecek (*cn_tab->cn_init)(cn_tab); 296 1.1.10.2 jdolecek 297 1.1.10.2 jdolecek #ifdef KGDB 298 1.1.10.2 jdolecek /* Set up KGDB */ 299 1.1.10.2 jdolecek #if NZS > 0 300 1.1.10.3 jdolecek if (cdevsw_lookup(kgdb_dev) == &zstty_cdevsw) 301 1.1.10.2 jdolecek zs_kgdb_init(); 302 1.1.10.2 jdolecek #endif /* NZS > 0 */ 303 1.1.10.2 jdolecek #endif /* KGDB */ 304 1.1.10.2 jdolecek } 305 1.1.10.2 jdolecek 306
Indexes created Wed Oct 01 19:09:53 GMT 2025