pcons.c revision 1.1.10.3
1 1.1.10.3 jdolecek /* $NetBSD: pcons.c,v 1.1.10.3 2002/10/10 18:36:53 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/cpu.h> 53 1.1.10.2 jdolecek #include <machine/psl.h> 54 1.1.10.2 jdolecek 55 1.1.10.2 jdolecek #include <dev/cons.h> 56 1.1.10.2 jdolecek 57 1.1.10.2 jdolecek #include <sun2/dev/cons.h> 58 1.1.10.2 jdolecek 59 1.1.10.2 jdolecek static int pconsmatch __P((struct device *, struct cfdata *, void *)); 60 1.1.10.2 jdolecek static void pconsattach __P((struct device *, struct device *, void *)); 61 1.1.10.2 jdolecek 62 1.1.10.3 jdolecek CFATTACH_DECL(pcons, sizeof(struct pconssoftc), 63 1.1.10.3 jdolecek pconsmatch, pconsattach, NULL, NULL); 64 1.1.10.2 jdolecek 65 1.1.10.2 jdolecek extern struct cfdriver pcons_cd; 66 1.1.10.2 jdolecek static struct cnm_state pcons_cnm_state; 67 1.1.10.2 jdolecek 68 1.1.10.2 jdolecek static int pconsprobe __P((void)); 69 1.1.10.2 jdolecek extern struct consdev *cn_tab; 70 1.1.10.2 jdolecek 71 1.1.10.3 jdolecek dev_type_open(pconsopen); 72 1.1.10.3 jdolecek dev_type_close(pconsclose); 73 1.1.10.3 jdolecek dev_type_read(pconsread); 74 1.1.10.3 jdolecek dev_type_write(pconswrite); 75 1.1.10.3 jdolecek dev_type_ioctl(pconsioctl); 76 1.1.10.3 jdolecek dev_type_tty(pconstty); 77 1.1.10.3 jdolecek dev_type_poll(pconspoll); 78 1.1.10.3 jdolecek 79 1.1.10.3 jdolecek const struct cdevsw pcons_cdevsw = { 80 1.1.10.3 jdolecek pconsopen, pconsclose, pconsread, pconswrite, pconsioctl, 81 1.1.10.3 jdolecek nostop, pconstty, pconspoll, nommap, ttykqfilter, D_TTY 82 1.1.10.3 jdolecek }; 83 1.1.10.3 jdolecek 84 1.1.10.2 jdolecek static int 85 1.1.10.2 jdolecek pconsmatch(parent, match, aux) 86 1.1.10.2 jdolecek struct device *parent; 87 1.1.10.2 jdolecek struct cfdata *match; 88 1.1.10.2 jdolecek void *aux; 89 1.1.10.2 jdolecek { 90 1.1.10.2 jdolecek struct mainbus_attach_args *ma = aux; 91 1.1.10.2 jdolecek extern int prom_cngetc __P((dev_t)); 92 1.1.10.2 jdolecek 93 1.1.10.2 jdolecek /* Only attach if no other console has attached. */ 94 1.1.10.2 jdolecek return ((ma->ma_name != NULL) && 95 1.1.10.2 jdolecek (strcmp("pcons", ma->ma_name) == 0) && 96 1.1.10.2 jdolecek (cn_tab->cn_getc == prom_cngetc)); 97 1.1.10.2 jdolecek 98 1.1.10.2 jdolecek } 99 1.1.10.2 jdolecek 100 1.1.10.2 jdolecek static void 101 1.1.10.2 jdolecek pconsattach(parent, self, aux) 102 1.1.10.2 jdolecek struct device *parent, *self; 103 1.1.10.2 jdolecek void *aux; 104 1.1.10.2 jdolecek { 105 1.1.10.2 jdolecek struct pconssoftc *sc = (struct pconssoftc *) self; 106 1.1.10.2 jdolecek 107 1.1.10.2 jdolecek printf("\n"); 108 1.1.10.2 jdolecek if (!pconsprobe()) 109 1.1.10.2 jdolecek return; 110 1.1.10.2 jdolecek 111 1.1.10.2 jdolecek cn_init_magic(&pcons_cnm_state); 112 1.1.10.2 jdolecek cn_set_magic("+++++"); 113 1.1.10.2 jdolecek callout_init(&sc->sc_poll_ch); 114 1.1.10.2 jdolecek } 115 1.1.10.2 jdolecek 116 1.1.10.2 jdolecek static void pconsstart __P((struct tty *)); 117 1.1.10.2 jdolecek static int pconsparam __P((struct tty *, struct termios *)); 118 1.1.10.2 jdolecek static void pcons_poll __P((void *)); 119 1.1.10.2 jdolecek 120 1.1.10.2 jdolecek int 121 1.1.10.2 jdolecek pconsopen(dev, flag, mode, p) 122 1.1.10.2 jdolecek dev_t dev; 123 1.1.10.2 jdolecek int flag, mode; 124 1.1.10.2 jdolecek struct proc *p; 125 1.1.10.2 jdolecek { 126 1.1.10.2 jdolecek struct pconssoftc *sc; 127 1.1.10.2 jdolecek int unit = minor(dev); 128 1.1.10.2 jdolecek struct tty *tp; 129 1.1.10.2 jdolecek 130 1.1.10.2 jdolecek if (unit >= pcons_cd.cd_ndevs) 131 1.1.10.2 jdolecek return ENXIO; 132 1.1.10.2 jdolecek sc = pcons_cd.cd_devs[unit]; 133 1.1.10.2 jdolecek if (!sc) 134 1.1.10.2 jdolecek return ENXIO; 135 1.1.10.2 jdolecek if (!(tp = sc->of_tty)) 136 1.1.10.2 jdolecek sc->of_tty = tp = ttymalloc(); 137 1.1.10.2 jdolecek tp->t_oproc = pconsstart; 138 1.1.10.2 jdolecek tp->t_param = pconsparam; 139 1.1.10.2 jdolecek tp->t_dev = dev; 140 1.1.10.2 jdolecek cn_tab->cn_dev = dev; 141 1.1.10.2 jdolecek if (!(tp->t_state & TS_ISOPEN)) { 142 1.1.10.2 jdolecek ttychars(tp); 143 1.1.10.2 jdolecek tp->t_iflag = TTYDEF_IFLAG; 144 1.1.10.2 jdolecek tp->t_oflag = TTYDEF_OFLAG; 145 1.1.10.2 jdolecek tp->t_cflag = TTYDEF_CFLAG; 146 1.1.10.2 jdolecek tp->t_lflag = TTYDEF_LFLAG; 147 1.1.10.2 jdolecek tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED; 148 1.1.10.2 jdolecek pconsparam(tp, &tp->t_termios); 149 1.1.10.2 jdolecek ttsetwater(tp); 150 1.1.10.2 jdolecek } else if ((tp->t_state&TS_XCLUDE) && suser(p->p_ucred, &p->p_acflag)) 151 1.1.10.2 jdolecek return EBUSY; 152 1.1.10.2 jdolecek tp->t_state |= TS_CARR_ON; 153 1.1.10.2 jdolecek 154 1.1.10.2 jdolecek if (!(sc->of_flags & OFPOLL)) { 155 1.1.10.2 jdolecek sc->of_flags |= OFPOLL; 156 1.1.10.2 jdolecek callout_reset(&sc->sc_poll_ch, 1, pcons_poll, sc); 157 1.1.10.2 jdolecek } 158 1.1.10.2 jdolecek 159 1.1.10.2 jdolecek return (*tp->t_linesw->l_open)(dev, tp); 160 1.1.10.2 jdolecek } 161 1.1.10.2 jdolecek 162 1.1.10.2 jdolecek int 163 1.1.10.2 jdolecek pconsclose(dev, flag, mode, p) 164 1.1.10.2 jdolecek dev_t dev; 165 1.1.10.2 jdolecek int flag, mode; 166 1.1.10.2 jdolecek struct proc *p; 167 1.1.10.2 jdolecek { 168 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 169 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 170 1.1.10.2 jdolecek 171 1.1.10.2 jdolecek callout_stop(&sc->sc_poll_ch); 172 1.1.10.2 jdolecek sc->of_flags &= ~OFPOLL; 173 1.1.10.2 jdolecek (*tp->t_linesw->l_close)(tp, flag); 174 1.1.10.2 jdolecek ttyclose(tp); 175 1.1.10.2 jdolecek return 0; 176 1.1.10.2 jdolecek } 177 1.1.10.2 jdolecek 178 1.1.10.2 jdolecek int 179 1.1.10.2 jdolecek pconsread(dev, uio, flag) 180 1.1.10.2 jdolecek dev_t dev; 181 1.1.10.2 jdolecek struct uio *uio; 182 1.1.10.2 jdolecek int flag; 183 1.1.10.2 jdolecek { 184 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 185 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 186 1.1.10.2 jdolecek 187 1.1.10.2 jdolecek return (*tp->t_linesw->l_read)(tp, uio, flag); 188 1.1.10.2 jdolecek } 189 1.1.10.2 jdolecek 190 1.1.10.2 jdolecek int 191 1.1.10.2 jdolecek pconswrite(dev, uio, flag) 192 1.1.10.2 jdolecek dev_t dev; 193 1.1.10.2 jdolecek struct uio *uio; 194 1.1.10.2 jdolecek int flag; 195 1.1.10.2 jdolecek { 196 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 197 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 198 1.1.10.2 jdolecek 199 1.1.10.2 jdolecek return (*tp->t_linesw->l_write)(tp, uio, flag); 200 1.1.10.2 jdolecek } 201 1.1.10.2 jdolecek 202 1.1.10.2 jdolecek int 203 1.1.10.2 jdolecek pconspoll(dev, events, p) 204 1.1.10.2 jdolecek dev_t dev; 205 1.1.10.2 jdolecek int events; 206 1.1.10.2 jdolecek struct proc *p; 207 1.1.10.2 jdolecek { 208 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 209 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 210 1.1.10.2 jdolecek 211 1.1.10.2 jdolecek return ((*tp->t_linesw->l_poll)(tp, events, p)); 212 1.1.10.2 jdolecek } 213 1.1.10.2 jdolecek 214 1.1.10.2 jdolecek int 215 1.1.10.2 jdolecek pconsioctl(dev, cmd, data, flag, p) 216 1.1.10.2 jdolecek dev_t dev; 217 1.1.10.2 jdolecek u_long cmd; 218 1.1.10.2 jdolecek caddr_t data; 219 1.1.10.2 jdolecek int flag; 220 1.1.10.2 jdolecek struct proc *p; 221 1.1.10.2 jdolecek { 222 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 223 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 224 1.1.10.2 jdolecek int error; 225 1.1.10.2 jdolecek 226 1.1.10.2 jdolecek if ((error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, p)) >= 0) 227 1.1.10.2 jdolecek return error; 228 1.1.10.2 jdolecek if ((error = ttioctl(tp, cmd, data, flag, p)) >= 0) 229 1.1.10.2 jdolecek return error; 230 1.1.10.2 jdolecek return ENOTTY; 231 1.1.10.2 jdolecek } 232 1.1.10.2 jdolecek 233 1.1.10.2 jdolecek struct tty * 234 1.1.10.2 jdolecek pconstty(dev) 235 1.1.10.2 jdolecek dev_t dev; 236 1.1.10.2 jdolecek { 237 1.1.10.2 jdolecek struct pconssoftc *sc = pcons_cd.cd_devs[minor(dev)]; 238 1.1.10.2 jdolecek 239 1.1.10.2 jdolecek return sc->of_tty; 240 1.1.10.2 jdolecek } 241 1.1.10.2 jdolecek 242 1.1.10.2 jdolecek static void 243 1.1.10.2 jdolecek pconsstart(tp) 244 1.1.10.2 jdolecek struct tty *tp; 245 1.1.10.2 jdolecek { 246 1.1.10.2 jdolecek struct clist *cl; 247 1.1.10.2 jdolecek int s, len; 248 1.1.10.2 jdolecek u_char buf[OFBURSTLEN]; 249 1.1.10.2 jdolecek 250 1.1.10.2 jdolecek s = spltty(); 251 1.1.10.2 jdolecek if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) { 252 1.1.10.2 jdolecek splx(s); 253 1.1.10.2 jdolecek return; 254 1.1.10.2 jdolecek } 255 1.1.10.2 jdolecek tp->t_state |= TS_BUSY; 256 1.1.10.2 jdolecek splx(s); 257 1.1.10.2 jdolecek cl = &tp->t_outq; 258 1.1.10.2 jdolecek len = q_to_b(cl, buf, OFBURSTLEN); 259 1.1.10.2 jdolecek prom_putstr(buf, len); 260 1.1.10.2 jdolecek s = spltty(); 261 1.1.10.2 jdolecek tp->t_state &= ~TS_BUSY; 262 1.1.10.2 jdolecek if (cl->c_cc) { 263 1.1.10.2 jdolecek tp->t_state |= TS_TIMEOUT; 264 1.1.10.2 jdolecek callout_reset(&tp->t_rstrt_ch, 1, ttrstrt, (void *)tp); 265 1.1.10.2 jdolecek } 266 1.1.10.2 jdolecek if (cl->c_cc <= tp->t_lowat) { 267 1.1.10.2 jdolecek if (tp->t_state & TS_ASLEEP) { 268 1.1.10.2 jdolecek tp->t_state &= ~TS_ASLEEP; 269 1.1.10.2 jdolecek wakeup(cl); 270 1.1.10.2 jdolecek } 271 1.1.10.2 jdolecek selwakeup(&tp->t_wsel); 272 1.1.10.2 jdolecek } 273 1.1.10.2 jdolecek splx(s); 274 1.1.10.2 jdolecek } 275 1.1.10.2 jdolecek 276 1.1.10.2 jdolecek static int 277 1.1.10.2 jdolecek pconsparam(tp, t) 278 1.1.10.2 jdolecek struct tty *tp; 279 1.1.10.2 jdolecek struct termios *t; 280 1.1.10.2 jdolecek { 281 1.1.10.2 jdolecek tp->t_ispeed = t->c_ispeed; 282 1.1.10.2 jdolecek tp->t_ospeed = t->c_ospeed; 283 1.1.10.2 jdolecek tp->t_cflag = t->c_cflag; 284 1.1.10.2 jdolecek return 0; 285 1.1.10.2 jdolecek } 286 1.1.10.2 jdolecek 287 1.1.10.2 jdolecek static void 288 1.1.10.2 jdolecek pcons_poll(aux) 289 1.1.10.2 jdolecek void *aux; 290 1.1.10.2 jdolecek { 291 1.1.10.2 jdolecek struct pconssoftc *sc = aux; 292 1.1.10.2 jdolecek struct tty *tp = sc->of_tty; 293 1.1.10.2 jdolecek int c; 294 1.1.10.2 jdolecek char ch; 295 1.1.10.2 jdolecek 296 1.1.10.2 jdolecek while ((c = prom_peekchar()) >= 0) { 297 1.1.10.2 jdolecek ch = c; 298 1.1.10.2 jdolecek cn_check_magic(tp->t_dev, ch, pcons_cnm_state); 299 1.1.10.2 jdolecek if (tp && (tp->t_state & TS_ISOPEN)) 300 1.1.10.2 jdolecek (*tp->t_linesw->l_rint)(ch, tp); 301 1.1.10.2 jdolecek } 302 1.1.10.2 jdolecek callout_reset(&sc->sc_poll_ch, 1, pcons_poll, sc); 303 1.1.10.2 jdolecek } 304 1.1.10.2 jdolecek 305 1.1.10.2 jdolecek int 306 1.1.10.2 jdolecek pconsprobe() 307 1.1.10.2 jdolecek { 308 1.1.10.2 jdolecek switch (prom_version()) { 309 1.1.10.2 jdolecek #ifdef PROM_OLDMON 310 1.1.10.2 jdolecek case PROM_OLDMON: 311 1.1.10.2 jdolecek case PROM_OBP_V0: 312 1.1.10.2 jdolecek return (1); 313 1.1.10.2 jdolecek #endif /* PROM_OLDMON */ 314 1.1.10.2 jdolecek #ifdef PROM_OBP_V2 315 1.1.10.2 jdolecek case PROM_OBP_V2: 316 1.1.10.2 jdolecek case PROM_OBP_V3: 317 1.1.10.2 jdolecek case PROM_OPENFIRM: 318 1.1.10.2 jdolecek return (prom_stdin() && prom_stdout()); 319 1.1.10.2 jdolecek #endif /* PROM_OBP_V2 */ 320 1.1.10.2 jdolecek default: break; 321 1.1.10.2 jdolecek } 322 1.1.10.2 jdolecek return (0); 323 1.1.10.2 jdolecek } 324 1.1.10.2 jdolecek 325 1.1.10.2 jdolecek void 326 1.1.10.2 jdolecek pcons_cnpollc(dev, on) 327 1.1.10.2 jdolecek dev_t dev; 328 1.1.10.2 jdolecek int on; 329 1.1.10.2 jdolecek { 330 1.1.10.2 jdolecek struct pconssoftc *sc = NULL; 331 1.1.10.2 jdolecek 332 1.1.10.2 jdolecek if (pcons_cd.cd_devs) 333 1.1.10.2 jdolecek sc = pcons_cd.cd_devs[minor(dev)]; 334 1.1.10.2 jdolecek 335 1.1.10.2 jdolecek if (on) { 336 1.1.10.2 jdolecek if (!sc) return; 337 1.1.10.2 jdolecek if (sc->of_flags & OFPOLL) 338 1.1.10.2 jdolecek callout_stop(&sc->sc_poll_ch); 339 1.1.10.2 jdolecek sc->of_flags &= ~OFPOLL; 340 1.1.10.2 jdolecek } else { 341 1.1.10.2 jdolecek /* Resuming kernel. */ 342 1.1.10.2 jdolecek if (sc && !(sc->of_flags & OFPOLL)) { 343 1.1.10.2 jdolecek sc->of_flags |= OFPOLL; 344 1.1.10.2 jdolecek callout_reset(&sc->sc_poll_ch, 1, pcons_poll, sc); 345 1.1.10.2 jdolecek } 346 1.1.10.2 jdolecek } 347 1.1.10.2 jdolecek } 348 1.1.10.2 jdolecek 349 1.1.10.2 jdolecek void pcons_dopoll __P((void)); 350 1.1.10.2 jdolecek void 351 1.1.10.2 jdolecek pcons_dopoll() { 352 1.1.10.2 jdolecek pcons_poll((void*)pcons_cd.cd_devs[0]); 353 1.1.10.2 jdolecek } 354
Indexes created Thu Oct 02 10:09:58 GMT 2025