pcons.c revision 1.1.10.2
1 1.1.10.2 jdolecek /* $NetBSD: pcons.c,v 1.1.10.2 2002/06/23 17:42:30 jdolecek Exp $ */ 2 1.1.10.2 jdolecek 3 1.1.10.2 jdolecek /*- 4 1.1.10.2 jdolecek * Copyright (c) 2000 Eduardo E. Horvath 5 1.1.10.2 jdolecek * All rights reserved. 6 1.1.10.2 jdolecek * 7 1.1.10.2 jdolecek * Redistribution and use in source and binary forms, with or without 8 1.1.10.2 jdolecek * modification, are permitted provided that the following conditions 9 1.1.10.2 jdolecek * are met: 10 1.1.10.2 jdolecek * 1. Redistributions of source code must retain the above copyright 11 1.1.10.2 jdolecek * notice, this list of conditions and the following disclaimer. 12 1.1.10.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.10.2 jdolecek * notice, this list of conditions and the following disclaimer in the 14 1.1.10.2 jdolecek * documentation and/or other materials provided with the distribution. 15 1.1.10.2 jdolecek * 3. The name of the author may not be used to endorse or promote products 16 1.1.10.2 jdolecek * derived from this software without specific prior written permission. 17 1.1.10.2 jdolecek * 18 1.1.10.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 1.1.10.2 jdolecek * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 1.1.10.2 jdolecek * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 1.1.10.2 jdolecek * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 1.1.10.2 jdolecek * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 1.1.10.2 jdolecek * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 1.1.10.2 jdolecek * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 1.1.10.2 jdolecek * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 1.1.10.2 jdolecek * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 1.1.10.2 jdolecek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 1.1.10.2 jdolecek * SUCH DAMAGE. 29 1.1.10.2 jdolecek */ 30 1.1.10.2 jdolecek 31 1.1.10.2 jdolecek /* 32 1.1.10.2 jdolecek * Default console driver. Uses the PROM or whatever 33 1.1.10.2 jdolecek * driver(s) are appropriate. 34 1.1.10.2 jdolecek */ 35 1.1.10.2 jdolecek 36 1.1.10.2 jdolecek #include "opt_ddb.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 50 1.1.10.2 jdolecek #include <machine/autoconf.h> 51 1.1.10.2 jdolecek #include <machine/promlib.h> 52 1.1.10.2 jdolecek #include <machine/conf.h> 53 1.1.10.2 jdolecek #include <machine/cpu.h> 54 1.1.10.2 jdolecek #include <machine/psl.h> 55 1.1.10.2 jdolecek 56 1.1.10.2 jdolecek #include <dev/cons.h> 57 1.1.10.2 jdolecek 58 1.1.10.2 jdolecek #include <sun2/dev/cons.h> 59 1.1.10.2 jdolecek 60 1.1.10.2 jdolecek static int pconsmatch __P((struct device *, struct cfdata *, void *)); 61 1.1.10.2 jdolecek static void pconsattach __P((struct device *, struct device *, void *)); 62 1.1.10.2 jdolecek 63 1.1.10.2 jdolecek struct cfattach pcons_ca = { 64 1.1.10.2 jdolecek sizeof(struct pconssoftc), pconsmatch, pconsattach 65 1.1.10.2 jdolecek }; 66 1.1.10.2 jdolecek 67 1.1.10.2 jdolecek extern struct cfdriver pcons_cd; 68 1.1.10.2 jdolecek static struct cnm_state pcons_cnm_state; 69 1.1.10.2 jdolecek 70 1.1.10.2 jdolecek static int pconsprobe __P((void)); 71 1.1.10.2 jdolecek extern struct consdev *cn_tab; 72 1.1.10.2 jdolecek 73 1.1.10.2 jdolecek static int 74 1.1.10.2 jdolecek pconsmatch(parent, match, aux) 75 1.1.10.2 jdolecek struct device *parent; 76 1.1.10.2 jdolecek struct cfdata *match; 77 1.1.10.2 jdolecek void *aux; 78 1.1.10.2 jdolecek { 79 1.1.10.2 jdolecek struct mainbus_attach_args *ma = aux; 80 1.1.10.2 jdolecek extern int prom_cngetc __P((dev_t)); 81 1.1.10.2 jdolecek 82 1.1.10.2 jdolecek /* Only attach if no other console has attached. */ 83 1.1.10.2 jdolecek return ((ma->ma_name != NULL) && 84 1.1.10.2 jdolecek (strcmp("pcons", ma->ma_name) == 0) && 85 1.1.10.2 jdolecek (cn_tab->cn_getc == prom_cngetc)); 86 1.1.10.2 jdolecek 87 1.1.10.2 jdolecek } 88 1.1.10.2 jdolecek 89 1.1.10.2 jdolecek static void 90 1.1.10.2 jdolecek pconsattach(parent, self, aux) 91 1.1.10.2 jdolecek struct device *parent, *self; 92 1.1.10.2 jdolecek void *aux; 93 1.1.10.2 jdolecek { 94 1.1.10.2 jdolecek struct pconssoftc *sc = (struct pconssoftc *) self; 95 1.1.10.2 jdolecek 96 1.1.10.2 jdolecek printf("\n"); 97 1.1.10.2 jdolecek if (!pconsprobe()) 98 1.1.10.2 jdolecek return; 99 1.1.10.2 jdolecek 100 1.1.10.2 jdolecek cn_init_magic(&pcons_cnm_state); 101 1.1.10.2 jdolecek cn_set_magic("+++++"); 102 1.1.10.2 jdolecek callout_init(&sc->sc_poll_ch); 103 1.1.10.2 jdolecek } 104 1.1.10.2 jdolecek 105 1.1.10.2 jdolecek static void pconsstart __P((struct tty *)); 106 1.1.10.2 jdolecek static int pconsparam __P((struct tty *, struct termios *)); 107 1.1.10.2 jdolecek static void pcons_poll __P((void *)); 108 1.1.10.2 jdolecek 109 1.1.10.2 jdolecek int 110 1.1.10.2 jdolecek pconsopen(dev, flag, mode, p) 111 1.1.10.2 jdolecek dev_t dev; 112 1.1.10.2 jdolecek int flag, mode; 113 1.1.10.2 jdolecek struct proc *p; 114 1.1.10.2 jdolecek { 115 1.1.10.2 jdolecek struct pconssoftc *sc; 116 1.1.10.2 jdolecek int unit = minor(dev); 117 1.1.10.2 jdolecek struct tty *tp; 118 1.1.10.2 jdolecek 119 1.1.10.2 jdolecek if (unit >= pcons_cd.cd_ndevs) 120 1.1.10.2 jdolecek return ENXIO; 121 1.1.10.2 jdolecek sc = pcons_cd.cd_devs[unit]; 122 1.1.10.2 jdolecek if (!sc) 123 1.1.10.2 jdolecek return ENXIO; 124 1.1.10.2 jdolecek if (!(tp = sc->of_tty)) 125 1.1.10.2 jdolecek sc->of_tty = tp = ttymalloc(); 126 1.1.10.2 jdolecek tp->t_oproc = pconsstart; 127 1.1.10.2 jdolecek tp->t_param = pconsparam; 128 1.1.10.2 jdolecek tp->t_dev = dev; 129 1.1.10.2 jdolecek cn_tab->cn_dev = dev; 130 1.1.10.2 jdolecek if (!(tp->t_state & TS_ISOPEN)) { 131 1.1.10.2 jdolecek ttychars(tp); 132 1.1.10.2 jdolecek tp->t_iflag = TTYDEF_IFLAG; 133 1.1.10.2 jdolecek tp->t_oflag = TTYDEF_OFLAG; 134 1.1.10.2 jdolecek tp->t_cflag = TTYDEF_CFLAG; 135 1.1.10.2 jdolecek tp->t_lflag = TTYDEF_LFLAG; 136 1.1.10.2 jdolecek tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 137 1.1.10.2 jdolecek pconsparam(tp, &tp->t_termios); 138 1.1.10.2 jdolecek ttsetwater(tp); 139 1.1.10.2 jdolecek } else if ((tp->t_state&TS_XCLUDE) && suser(p->p_ucred, &p->p_acflag)) 140 1.1.10.2 jdolecek return EBUSY; 141 1.1.10.2 jdolecek tp->t_state |= TS_CARR_ON; 142 1.1.10.2 jdolecek 143 1.1.10.2 jdolecek if (!(sc->of_flags & OFPOLL)) { 144 1.1.10.2 jdolecek sc->of_flags |= OFPOLL; 145 1.1.10.2 jdolecek callout_reset(&sc->sc_poll_ch, 1, pcons_poll, sc); 146 1.1.10.2 jdolecek } 147 1.1.10.2 jdolecek 148 1.1.10.2 jdolecek return (*tp->t_linesw->l_open)(dev, tp); 149 1.1.10.2 jdolecek } 150 1.1.10.2 jdolecek 151 1.1.10.2 jdolecek int 152 1.1.10.2 jdolecek pconsclose(dev, flag, mode, p) 153 1.1.10.2 jdolecek dev_t dev; 154 1.1.10.2 jdolecek int flag, mode; 155 1.1.10.2 jdolecek struct proc *p; 156 1.1.10.2 jdolecek { 157 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 158 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 159 1.1.10.2 jdolecek 160 1.1.10.2 jdolecek callout_stop(&sc->sc_poll_ch); 161 1.1.10.2 jdolecek sc->of_flags &= ~OFPOLL; 162 1.1.10.2 jdolecek (*tp->t_linesw->l_close)(tp, flag); 163 1.1.10.2 jdolecek ttyclose(tp); 164 1.1.10.2 jdolecek return 0; 165 1.1.10.2 jdolecek } 166 1.1.10.2 jdolecek 167 1.1.10.2 jdolecek int 168 1.1.10.2 jdolecek pconsread(dev, uio, flag) 169 1.1.10.2 jdolecek dev_t dev; 170 1.1.10.2 jdolecek struct uio *uio; 171 1.1.10.2 jdolecek int flag; 172 1.1.10.2 jdolecek { 173 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 174 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 175 1.1.10.2 jdolecek 176 1.1.10.2 jdolecek return (*tp->t_linesw->l_read)(tp, uio, flag); 177 1.1.10.2 jdolecek } 178 1.1.10.2 jdolecek 179 1.1.10.2 jdolecek int 180 1.1.10.2 jdolecek pconswrite(dev, uio, flag) 181 1.1.10.2 jdolecek dev_t dev; 182 1.1.10.2 jdolecek struct uio *uio; 183 1.1.10.2 jdolecek int flag; 184 1.1.10.2 jdolecek { 185 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 186 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 187 1.1.10.2 jdolecek 188 1.1.10.2 jdolecek return (*tp->t_linesw->l_write)(tp, uio, flag); 189 1.1.10.2 jdolecek } 190 1.1.10.2 jdolecek 191 1.1.10.2 jdolecek int 192 1.1.10.2 jdolecek pconspoll(dev, events, p) 193 1.1.10.2 jdolecek dev_t dev; 194 1.1.10.2 jdolecek int events; 195 1.1.10.2 jdolecek struct proc *p; 196 1.1.10.2 jdolecek { 197 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 198 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 199 1.1.10.2 jdolecek 200 1.1.10.2 jdolecek return ((*tp->t_linesw->l_poll)(tp, events, p)); 201 1.1.10.2 jdolecek } 202 1.1.10.2 jdolecek 203 1.1.10.2 jdolecek int 204 1.1.10.2 jdolecek pconsioctl(dev, cmd, data, flag, p) 205 1.1.10.2 jdolecek dev_t dev; 206 1.1.10.2 jdolecek u_long cmd; 207 1.1.10.2 jdolecek caddr_t data; 208 1.1.10.2 jdolecek int flag; 209 1.1.10.2 jdolecek struct proc *p; 210 1.1.10.2 jdolecek { 211 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 212 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 213 1.1.10.2 jdolecek int error; 214 1.1.10.2 jdolecek 215 1.1.10.2 jdolecek if ((error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, p)) >= 0) 216 1.1.10.2 jdolecek return error; 217 1.1.10.2 jdolecek if ((error = ttioctl(tp, cmd, data, flag, p)) >= 0) 218 1.1.10.2 jdolecek return error; 219 1.1.10.2 jdolecek return ENOTTY; 220 1.1.10.2 jdolecek } 221 1.1.10.2 jdolecek 222 1.1.10.2 jdolecek struct tty * 223 1.1.10.2 jdolecek pconstty(dev) 224 1.1.10.2 jdolecek dev_t dev; 225 1.1.10.2 jdolecek { 226 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 227 1.1.10.2 jdolecek 228 1.1.10.2 jdolecek return sc->of_tty; 229 1.1.10.2 jdolecek } 230 1.1.10.2 jdolecek 231 1.1.10.2 jdolecek void 232 1.1.10.2 jdolecek pconsstop(tp, flag) 233 1.1.10.2 jdolecek struct tty *tp; 234 1.1.10.2 jdolecek int flag; 235 1.1.10.2 jdolecek { 236 1.1.10.2 jdolecek } 237 1.1.10.2 jdolecek 238 1.1.10.2 jdolecek static void 239 1.1.10.2 jdolecek pconsstart(tp) 240 1.1.10.2 jdolecek struct tty *tp; 241 1.1.10.2 jdolecek { 242 1.1.10.2 jdolecek struct clist *cl; 243 1.1.10.2 jdolecek int s, len; 244 1.1.10.2 jdolecek u_char buf[OFBURSTLEN]; 245 1.1.10.2 jdolecek 246 1.1.10.2 jdolecek s = spltty(); 247 1.1.10.2 jdolecek if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 248 1.1.10.2 jdolecek splx(s); 249 1.1.10.2 jdolecek return; 250 1.1.10.2 jdolecek } 251 1.1.10.2 jdolecek tp->t_state |= TS_BUSY; 252 1.1.10.2 jdolecek splx(s); 253 1.1.10.2 jdolecek cl = &tp->t_outq; 254 1.1.10.2 jdolecek len = q_to_b(cl, buf, OFBURSTLEN); 255 1.1.10.2 jdolecek prom_putstr(buf, len); 256 1.1.10.2 jdolecek s = spltty(); 257 1.1.10.2 jdolecek tp->t_state &= ~TS_BUSY; 258 1.1.10.2 jdolecek if (cl->c_cc) { 259 1.1.10.2 jdolecek tp->t_state |= TS_TIMEOUT; 260 1.1.10.2 jdolecek callout_reset(&tp->t_rstrt_ch, 1, ttrstrt, (void *)tp); 261 1.1.10.2 jdolecek } 262 1.1.10.2 jdolecek if (cl->c_cc <= tp->t_lowat) { 263 1.1.10.2 jdolecek if (tp->t_state & TS_ASLEEP) { 264 1.1.10.2 jdolecek tp->t_state &= ~TS_ASLEEP; 265 1.1.10.2 jdolecek wakeup(cl); 266 1.1.10.2 jdolecek } 267 1.1.10.2 jdolecek selwakeup(&tp->t_wsel); 268 1.1.10.2 jdolecek } 269 1.1.10.2 jdolecek splx(s); 270 1.1.10.2 jdolecek } 271 1.1.10.2 jdolecek 272 1.1.10.2 jdolecek static int 273 1.1.10.2 jdolecek pconsparam(tp, t) 274 1.1.10.2 jdolecek struct tty *tp; 275 1.1.10.2 jdolecek struct termios *t; 276 1.1.10.2 jdolecek { 277 1.1.10.2 jdolecek tp->t_ispeed = t->c_ispeed; 278 1.1.10.2 jdolecek tp->t_ospeed = t->c_ospeed; 279 1.1.10.2 jdolecek tp->t_cflag = t->c_cflag; 280 1.1.10.2 jdolecek return 0; 281 1.1.10.2 jdolecek } 282 1.1.10.2 jdolecek 283 1.1.10.2 jdolecek static void 284 1.1.10.2 jdolecek pcons_poll(aux) 285 1.1.10.2 jdolecek void *aux; 286 1.1.10.2 jdolecek { 287 1.1.10.2 jdolecek struct pconssoftc *sc = aux; 288 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 289 1.1.10.2 jdolecek int c; 290 1.1.10.2 jdolecek char ch; 291 1.1.10.2 jdolecek 292 1.1.10.2 jdolecek while ((c = prom_peekchar()) >= 0) { 293 1.1.10.2 jdolecek ch = c; 294 1.1.10.2 jdolecek cn_check_magic(tp->t_dev, ch, pcons_cnm_state); 295 1.1.10.2 jdolecek if (tp && (tp->t_state & TS_ISOPEN)) 296 1.1.10.2 jdolecek (*tp->t_linesw->l_rint)(ch, tp); 297 1.1.10.2 jdolecek } 298 1.1.10.2 jdolecek callout_reset(&sc->sc_poll_ch, 1, pcons_poll, sc); 299 1.1.10.2 jdolecek } 300 1.1.10.2 jdolecek 301 1.1.10.2 jdolecek int 302 1.1.10.2 jdolecek pconsprobe() 303 1.1.10.2 jdolecek { 304 1.1.10.2 jdolecek switch (prom_version()) { 305 1.1.10.2 jdolecek #ifdef PROM_OLDMON 306 1.1.10.2 jdolecek case PROM_OLDMON: 307 1.1.10.2 jdolecek case PROM_OBP_V0: 308 1.1.10.2 jdolecek return (1); 309 1.1.10.2 jdolecek #endif /* PROM_OLDMON */ 310 1.1.10.2 jdolecek #ifdef PROM_OBP_V2 311 1.1.10.2 jdolecek case PROM_OBP_V2: 312 1.1.10.2 jdolecek case PROM_OBP_V3: 313 1.1.10.2 jdolecek case PROM_OPENFIRM: 314 1.1.10.2 jdolecek return (prom_stdin() && prom_stdout()); 315 1.1.10.2 jdolecek #endif /* PROM_OBP_V2 */ 316 1.1.10.2 jdolecek default: break; 317 1.1.10.2 jdolecek } 318 1.1.10.2 jdolecek return (0); 319 1.1.10.2 jdolecek } 320 1.1.10.2 jdolecek 321 1.1.10.2 jdolecek void 322 1.1.10.2 jdolecek pcons_cnpollc(dev, on) 323 1.1.10.2 jdolecek dev_t dev; 324 1.1.10.2 jdolecek int on; 325 1.1.10.2 jdolecek { 326 1.1.10.2 jdolecek struct pconssoftc *sc = NULL; 327 1.1.10.2 jdolecek 328 1.1.10.2 jdolecek if (pcons_cd.cd_devs) 329 1.1.10.2 jdolecek sc = pcons_cd.cd_devs[minor(dev)]; 330 1.1.10.2 jdolecek 331 1.1.10.2 jdolecek if (on) { 332 1.1.10.2 jdolecek if (!sc) return; 333 1.1.10.2 jdolecek if (sc->of_flags & OFPOLL) 334 1.1.10.2 jdolecek callout_stop(&sc->sc_poll_ch); 335 1.1.10.2 jdolecek sc->of_flags &= ~OFPOLL; 336 1.1.10.2 jdolecek } else { 337 1.1.10.2 jdolecek /* Resuming kernel. */ 338 1.1.10.2 jdolecek if (sc && !(sc->of_flags & OFPOLL)) { 339 1.1.10.2 jdolecek sc->of_flags |= OFPOLL; 340 1.1.10.2 jdolecek callout_reset(&sc->sc_poll_ch, 1, pcons_poll, sc); 341 1.1.10.2 jdolecek } 342 1.1.10.2 jdolecek } 343 1.1.10.2 jdolecek } 344 1.1.10.2 jdolecek 345 1.1.10.2 jdolecek void pcons_dopoll __P((void)); 346 1.1.10.2 jdolecek void 347 1.1.10.2 jdolecek pcons_dopoll() { 348 1.1.10.2 jdolecek pcons_poll((void*)pcons_cd.cd_devs[0]); 349 1.1.10.2 jdolecek } 350
Indexes created Thu Oct 02 10:09:58 GMT 2025