dz_vsbus.c revision 1.29
1 /* $NetBSD: dz_vsbus.c,v 1.29 2002/10/02 16:02:37 thorpej Exp $ */ 2 /* 3 * Copyright (c) 1998 Ludd, University of Lule}, Sweden. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed at Ludd, University of 17 * Lule}, Sweden and its contributors. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 34 35 #include <sys/param.h> 36 #include <sys/proc.h> 37 #include <sys/systm.h> 38 #include <sys/ioctl.h> 39 #include <sys/tty.h> 40 #include <sys/file.h> 41 #include <sys/conf.h> 42 #include <sys/device.h> 43 #include <sys/reboot.h> 44 45 #include <dev/cons.h> 46 47 #include <machine/mtpr.h> 48 #include <machine/sid.h> 49 #include <machine/uvax.h> 50 #include <machine/vsbus.h> 51 #include <machine/cpu.h> 52 #include <machine/scb.h> 53 54 #include <arch/vax/vax/gencons.h> 55 56 #include <dev/dec/dzreg.h> 57 #include <dev/dec/dzvar.h> 58 59 #include "ioconf.h" 60 #include "dzkbd.h" 61 #include "dzms.h" 62 #include "opt_cputype.h" 63 64 #if NDZKBD > 0 || NDZMS > 0 65 #include <dev/dec/dzkbdvar.h> 66 67 #if 0 68 static struct dz_linestate dz_conslinestate = { NULL, -1, NULL, NULL, NULL }; 69 #endif 70 #endif 71 72 static int dz_vsbus_match(struct device *, struct cfdata *, void *); 73 static void dz_vsbus_attach(struct device *, struct device *, void *); 74 75 static vaddr_t dz_regs; /* Used for console */ 76 77 CFATTACH_DECL(dz_vsbus, sizeof(struct dz_softc), 78 dz_vsbus_match, dz_vsbus_attach, NULL, NULL); 79 80 #define REG(name) short name; short X##name##X; 81 static volatile struct ss_dz {/* base address of DZ-controller: 0x200A0000 */ 82 REG(csr); /* 00 Csr: control/status register */ 83 REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */ 84 REG(tcr); /* 08 Tcr: transmit console register */ 85 REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */ 86 REG(lpr0); /* 10 Lpr0: */ 87 REG(lpr1); /* 14 Lpr0: */ 88 REG(lpr2); /* 18 Lpr0: */ 89 REG(lpr3); /* 1C Lpr0: */ 90 } *dz; 91 #undef REG 92 93 cons_decl(dz); 94 95 #if NDZKBD > 0 || NDZMS > 0 96 static int 97 dz_print(void *aux, const char *name) 98 { 99 #if 0 100 #if NDZKBD > 0 || NDZMS > 0 101 struct dz_attach_args *dz_args = aux; 102 if (name == NULL) { 103 printf (" line %d", dz_args->line); 104 if (dz_args->hwflags & DZ_HWFLAG_CONSOLE) 105 printf (" (console)"); 106 } 107 return (QUIET); 108 #else 109 if (name) 110 printf ("lkc at %s", name); 111 return (UNCONF); 112 #endif 113 #endif 114 return (UNCONF); 115 } 116 #endif 117 118 static int 119 dz_vsbus_match(struct device *parent, struct cfdata *cf, void *aux) 120 { 121 struct vsbus_attach_args *va = aux; 122 struct ss_dz *dzP; 123 short i; 124 125 #if VAX53 || VAX49 || VAXANY 126 if (vax_boardtype == VAX_BTYP_53 || vax_boardtype == VAX_BTYP_49) 127 if (cf->cf_loc[0] != 0x25000000) 128 return 0; /* Ugly */ 129 #endif 130 131 dzP = (struct ss_dz *)va->va_addr; 132 i = dzP->tcr; 133 dzP->csr = DZ_CSR_MSE|DZ_CSR_TXIE; 134 dzP->tcr = 0; 135 DELAY(1000); 136 dzP->tcr = 1; 137 DELAY(100000); 138 dzP->tcr = i; 139 140 /* If the device doesn't exist, no interrupt has been generated */ 141 return 1; 142 } 143 144 static void 145 dz_vsbus_attach(struct device *parent, struct device *self, void *aux) 146 { 147 struct dz_softc *sc = (void *)self; 148 struct vsbus_attach_args *va = aux; 149 #if NDZKBD > 0 150 extern const struct cdevsw dz_cdevsw; 151 #endif 152 #if NDZKBD > 0 || NDZMS > 0 153 struct dzkm_attach_args daa; 154 #endif 155 int s, consline; 156 157 /* 158 * XXX - This is evil and ugly, but... 159 * due to the nature of how bus_space_* works on VAX, this will 160 * be perfectly good until everything is converted. 161 */ 162 if (dz_regs == 0) /* This isn't console */ { 163 dz_regs = vax_map_physmem(va->va_paddr, 1); 164 consline = -1; 165 } else 166 consline = minor(cn_tab->cn_dev); 167 sc->sc_ioh = dz_regs; 168 sc->sc_dr.dr_csr = 0; 169 sc->sc_dr.dr_rbuf = 4; 170 sc->sc_dr.dr_dtr = 9; 171 sc->sc_dr.dr_break = 13; 172 sc->sc_dr.dr_tbuf = 12; 173 sc->sc_dr.dr_tcr = 8; 174 sc->sc_dr.dr_dcd = 13; 175 sc->sc_dr.dr_ring = 13; 176 177 sc->sc_type = DZ_DZV; 178 179 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 180 181 scb_vecalloc(va->va_cvec, dzxint, sc, SCB_ISTACK, &sc->sc_tintrcnt); 182 scb_vecalloc(va->va_cvec - 4, dzrint, sc, SCB_ISTACK, &sc->sc_rintrcnt); 183 184 printf("\n%s: 4 lines", self->dv_xname); 185 186 dzattach(sc, NULL, consline); 187 DELAY(10000); 188 189 #if NDZKBD > 0 190 /* Don't touch this port if this is the console */ 191 if (cn_tab->cn_dev != makedev(cdevsw_lookup_major(&dz_cdevsw), 0)) { 192 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) 193 | DZ_LPR_8_BIT_CHAR; 194 daa.daa_line = 0; 195 daa.daa_flags = 196 (cn_tab->cn_pri == CN_INTERNAL ? DZKBD_CONSOLE : 0); 197 config_found(self, &daa, dz_print); 198 } 199 #endif 200 #if NDZMS > 0 201 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_8_BIT_CHAR \ 202 | DZ_LPR_PARENB | DZ_LPR_OPAR | 1 /* line */; 203 daa.daa_line = 1; 204 daa.daa_flags = 0; 205 config_found(self, &daa, dz_print); 206 #endif 207 s = spltty(); 208 dzrint(sc); 209 dzxint(sc); 210 splx(s); 211 } 212 213 int 214 dzcngetc(dev_t dev) 215 { 216 int c = 0; 217 int mino = minor(dev); 218 u_short rbuf; 219 220 do { 221 while ((dz->csr & 0x80) == 0) 222 ; /* Wait for char */ 223 rbuf = dz->rbuf; 224 if (((rbuf >> 8) & 3) != mino) 225 continue; 226 c = rbuf & 0x7f; 227 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 228 229 if (c == 13) 230 c = 10; 231 232 return (c); 233 } 234 235 void 236 dzcnprobe(struct consdev *cndev) 237 { 238 extern vaddr_t iospace; 239 int diagcons; 240 paddr_t ioaddr = 0x200A0000; 241 extern const struct cdevsw dz_cdevsw; 242 243 switch (vax_boardtype) { 244 case VAX_BTYP_410: 245 case VAX_BTYP_420: 246 case VAX_BTYP_43: 247 diagcons = (vax_confdata & 0x20 ? 3 : 0); 248 break; 249 250 case VAX_BTYP_46: 251 case VAX_BTYP_48: 252 diagcons = (vax_confdata & 0x100 ? 3 : 0); 253 break; 254 255 case VAX_BTYP_49: 256 case VAX_BTYP_53: 257 ioaddr = 0x25000000; 258 diagcons = 3; 259 break; 260 261 default: 262 cndev->cn_pri = CN_DEAD; 263 return; 264 } 265 if (diagcons) 266 cndev->cn_pri = CN_REMOTE; 267 else 268 cndev->cn_pri = CN_NORMAL; 269 cndev->cn_dev = makedev(cdevsw_lookup_major(&dz_cdevsw), diagcons); 270 (vaddr_t)dz = dz_regs = iospace; 271 ioaccess(iospace, ioaddr, 1); 272 } 273 274 void 275 dzcninit(struct consdev *cndev) 276 { 277 dz = (void*)dz_regs; 278 279 dz->csr = 0; /* Disable scanning until initting is done */ 280 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 281 dz->csr = 0x20; /* Turn scanning back on */ 282 } 283 284 285 void 286 dzcnputc(dev_t dev, int ch) 287 { 288 int timeout = 1<<15; /* don't hang the machine! */ 289 int mino = minor(dev); 290 u_short tcr; 291 292 if (mfpr(PR_MAPEN) == 0) 293 return; 294 295 tcr = dz->tcr; /* remember which lines to scan */ 296 dz->tcr = (1 << mino); 297 298 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 299 if (--timeout < 0) 300 break; 301 dz->tdr = ch; /* Put the character */ 302 timeout = 1<<15; 303 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 304 if (--timeout < 0) 305 break; 306 307 dz->tcr = tcr; 308 } 309 310 void 311 dzcnpollc(dev_t dev, int pollflag) 312 { 313 static u_char mask; 314 315 if (pollflag) 316 mask = vsbus_setmask(0); 317 else 318 vsbus_setmask(mask); 319 } 320 321 #if NDZKBD > 0 || NDZMS > 0 322 int 323 dzgetc(struct dz_linestate *ls) 324 { 325 int line = ls->dz_line; 326 u_short rbuf; 327 328 for (;;) { 329 for(; (dz->csr & DZ_CSR_RX_DONE) == 0;); 330 rbuf = dz->rbuf; 331 if (((rbuf >> 8) & 3) == line) 332 return (rbuf & 0xff); 333 } 334 } 335 336 void 337 dzputc(struct dz_linestate *ls, int ch) 338 { 339 int line; 340 u_short tcr; 341 int s; 342 extern const struct cdevsw dz_cdevsw; 343 344 /* if the dz has already been attached, the MI 345 driver will do the transmitting: */ 346 if (ls && ls->dz_sc) { 347 s = spltty(); 348 line = ls->dz_line; 349 putc(ch, &ls->dz_tty->t_outq); 350 tcr = dz->tcr; 351 if (!(tcr & (1 << line))) 352 dz->tcr = tcr | (1 << line); 353 dzxint(ls->dz_sc); 354 splx(s); 355 return; 356 } 357 358 /* use dzcnputc to do the transmitting: */ 359 dzcnputc(makedev(cdevsw_lookup_major(&dz_cdevsw), 0), ch); 360 } 361 #endif /* NDZKBD > 0 || NDZMS > 0 */ 362
Indexes created Tue Sep 30 17:09:57 GMT 2025