dz_vsbus.c revision 1.33
1 /* $NetBSD: dz_vsbus.c,v 1.33 2003/10/18 12:09:18 ragge 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 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: dz_vsbus.c,v 1.33 2003/10/18 12:09:18 ragge Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/proc.h> 38 #include <sys/systm.h> 39 #include <sys/ioctl.h> 40 #include <sys/tty.h> 41 #include <sys/file.h> 42 #include <sys/conf.h> 43 #include <sys/device.h> 44 #include <sys/reboot.h> 45 46 #include <dev/cons.h> 47 48 #include <machine/mtpr.h> 49 #include <machine/sid.h> 50 #include <machine/uvax.h> 51 #include <machine/vsbus.h> 52 #include <machine/cpu.h> 53 #include <machine/scb.h> 54 55 #include <arch/vax/vax/gencons.h> 56 57 #include <dev/dec/dzreg.h> 58 #include <dev/dec/dzvar.h> 59 60 #include "ioconf.h" 61 #include "dzkbd.h" 62 #include "dzms.h" 63 #include "opt_cputype.h" 64 65 #if NDZKBD > 0 || NDZMS > 0 66 #include <dev/dec/dzkbdvar.h> 67 68 #if 0 69 static struct dz_linestate dz_conslinestate = { NULL, -1, NULL, NULL, NULL }; 70 #endif 71 #endif 72 73 static int dz_vsbus_match(struct device *, struct cfdata *, void *); 74 static void dz_vsbus_attach(struct device *, struct device *, void *); 75 76 static vaddr_t dz_regs; /* Used for console */ 77 78 CFATTACH_DECL(dz_vsbus, sizeof(struct dz_softc), 79 dz_vsbus_match, dz_vsbus_attach, NULL, NULL); 80 81 #define REG(name) short name; short X##name##X; 82 static volatile struct ss_dz {/* base address of DZ-controller: 0x200A0000 */ 83 REG(csr); /* 00 Csr: control/status register */ 84 REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */ 85 REG(tcr); /* 08 Tcr: transmit console register */ 86 REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */ 87 REG(lpr0); /* 10 Lpr0: */ 88 REG(lpr1); /* 14 Lpr0: */ 89 REG(lpr2); /* 18 Lpr0: */ 90 REG(lpr3); /* 1C Lpr0: */ 91 } *dz; 92 #undef REG 93 94 cons_decl(dz); 95 96 #if NDZKBD > 0 || NDZMS > 0 97 static int 98 dz_print(void *aux, const char *name) 99 { 100 #if 0 101 #if NDZKBD > 0 || NDZMS > 0 102 struct dz_attach_args *dz_args = aux; 103 if (name == NULL) { 104 aprint_normal (" line %d", dz_args->line); 105 if (dz_args->hwflags & DZ_HWFLAG_CONSOLE) 106 aprint_normal (" (console)"); 107 } 108 return (QUIET); 109 #else 110 if (name) 111 aprint_normal ("lkc at %s", name); 112 return (UNCONF); 113 #endif 114 #endif 115 return (UNCONF); 116 } 117 #endif 118 119 static int 120 dz_vsbus_match(struct device *parent, struct cfdata *cf, void *aux) 121 { 122 struct vsbus_attach_args *va = aux; 123 struct ss_dz *dzP; 124 short i; 125 126 #if VAX53 || VAX49 || VAXANY 127 if (vax_boardtype == VAX_BTYP_53 || vax_boardtype == VAX_BTYP_49) 128 if (cf->cf_loc[0] != 0x25000000) 129 return 0; /* Ugly */ 130 #endif 131 132 dzP = (struct ss_dz *)va->va_addr; 133 i = dzP->tcr; 134 dzP->csr = DZ_CSR_MSE|DZ_CSR_TXIE; 135 dzP->tcr = 0; 136 DELAY(1000); 137 dzP->tcr = 1; 138 DELAY(100000); 139 dzP->tcr = i; 140 141 /* If the device doesn't exist, no interrupt has been generated */ 142 return 1; 143 } 144 145 static void 146 dz_vsbus_attach(struct device *parent, struct device *self, void *aux) 147 { 148 struct dz_softc *sc = (void *)self; 149 struct vsbus_attach_args *va = aux; 150 #if NDZKBD > 0 151 extern const struct cdevsw dz_cdevsw; 152 #endif 153 #if NDZKBD > 0 || NDZMS > 0 154 struct dzkm_attach_args daa; 155 #endif 156 int s, consline; 157 158 /* 159 * XXX - This is evil and ugly, but... 160 * due to the nature of how bus_space_* works on VAX, this will 161 * be perfectly good until everything is converted. 162 */ 163 if (dz_regs == 0) /* This isn't console */ { 164 dz_regs = vax_map_physmem(va->va_paddr, 1); 165 consline = -1; 166 } else 167 consline = minor(cn_tab->cn_dev); 168 sc->sc_ioh = dz_regs; 169 sc->sc_dr.dr_csr = 0; 170 sc->sc_dr.dr_rbuf = 4; 171 sc->sc_dr.dr_dtr = 9; 172 sc->sc_dr.dr_break = 13; 173 sc->sc_dr.dr_tbuf = 12; 174 sc->sc_dr.dr_tcr = 8; 175 sc->sc_dr.dr_dcd = 13; 176 sc->sc_dr.dr_ring = 13; 177 178 sc->sc_type = DZ_DZV; 179 180 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 181 182 scb_vecalloc(va->va_cvec, dzxint, sc, SCB_ISTACK, &sc->sc_tintrcnt); 183 scb_vecalloc(va->va_cvec - 4, dzrint, sc, SCB_ISTACK, &sc->sc_rintrcnt); 184 185 printf("\n%s: 4 lines", self->dv_xname); 186 187 dzattach(sc, NULL, consline); 188 DELAY(10000); 189 190 if (consline != -1) 191 cn_set_magic("\033D"); /* set VAX DDB escape sequence */ 192 193 #if NDZKBD > 0 194 /* Don't touch this port if this is the console */ 195 if (cn_tab->cn_dev != makedev(cdevsw_lookup_major(&dz_cdevsw), 0)) { 196 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) 197 | DZ_LPR_8_BIT_CHAR; 198 daa.daa_line = 0; 199 daa.daa_flags = 200 (cn_tab->cn_pri == CN_INTERNAL ? DZKBD_CONSOLE : 0); 201 config_found(self, &daa, dz_print); 202 } 203 #endif 204 #if NDZMS > 0 205 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_8_BIT_CHAR \ 206 | DZ_LPR_PARENB | DZ_LPR_OPAR | 1 /* line */; 207 daa.daa_line = 1; 208 daa.daa_flags = 0; 209 config_found(self, &daa, dz_print); 210 #endif 211 s = spltty(); 212 dzrint(sc); 213 dzxint(sc); 214 splx(s); 215 } 216 217 int 218 dzcngetc(dev_t dev) 219 { 220 int c = 0, s; 221 int mino = minor(dev); 222 u_short rbuf; 223 224 s = spltty(); 225 do { 226 while ((dz->csr & 0x80) == 0) 227 ; /* Wait for char */ 228 rbuf = dz->rbuf; 229 if (((rbuf >> 8) & 3) != mino) 230 continue; 231 c = rbuf & 0x7f; 232 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 233 splx(s); 234 235 if (c == 13) 236 c = 10; 237 238 return (c); 239 } 240 241 void 242 dzcnprobe(struct consdev *cndev) 243 { 244 extern vaddr_t iospace; 245 int diagcons; 246 paddr_t ioaddr = 0x200A0000; 247 extern const struct cdevsw dz_cdevsw; 248 249 switch (vax_boardtype) { 250 case VAX_BTYP_410: 251 case VAX_BTYP_420: 252 case VAX_BTYP_43: 253 diagcons = (vax_confdata & 0x20 ? 3 : 0); 254 break; 255 256 case VAX_BTYP_46: 257 case VAX_BTYP_48: 258 diagcons = (vax_confdata & 0x100 ? 3 : 0); 259 break; 260 261 case VAX_BTYP_49: 262 case VAX_BTYP_53: 263 ioaddr = 0x25000000; 264 diagcons = (vax_confdata & 8 ? 3 : 0); 265 break; 266 267 default: 268 cndev->cn_pri = CN_DEAD; 269 return; 270 } 271 if (diagcons) 272 cndev->cn_pri = CN_REMOTE; 273 else 274 cndev->cn_pri = CN_NORMAL; 275 cndev->cn_dev = makedev(cdevsw_lookup_major(&dz_cdevsw), diagcons); 276 (vaddr_t)dz = dz_regs = iospace; 277 ioaccess(iospace, ioaddr, 1); 278 } 279 280 void 281 dzcninit(struct consdev *cndev) 282 { 283 dz = (void*)dz_regs; 284 285 dz->csr = 0; /* Disable scanning until initting is done */ 286 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 287 dz->csr = 0x20; /* Turn scanning back on */ 288 } 289 290 291 void 292 dzcnputc(dev_t dev, int ch) 293 { 294 int timeout = 1<<15; /* don't hang the machine! */ 295 int mino = minor(dev); 296 int s; 297 u_short tcr; 298 299 if (mfpr(PR_MAPEN) == 0) 300 return; 301 302 s = spltty(); 303 tcr = dz->tcr; /* remember which lines to scan */ 304 dz->tcr = (1 << mino); 305 306 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 307 if (--timeout < 0) 308 break; 309 dz->tdr = ch; /* Put the character */ 310 timeout = 1<<15; 311 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 312 if (--timeout < 0) 313 break; 314 315 dz->tcr = tcr; 316 splx(s); 317 } 318 319 void 320 dzcnpollc(dev_t dev, int pollflag) 321 { 322 static u_char mask; 323 324 if (pollflag) 325 mask = vsbus_setmask(0); 326 else 327 vsbus_setmask(mask); 328 } 329 330 #if NDZKBD > 0 || NDZMS > 0 331 int 332 dzgetc(struct dz_linestate *ls) 333 { 334 int line = ls->dz_line; 335 int s; 336 u_short rbuf; 337 338 s = spltty(); 339 for (;;) { 340 for(; (dz->csr & DZ_CSR_RX_DONE) == 0;); 341 rbuf = dz->rbuf; 342 if (((rbuf >> 8) & 3) == line) { 343 splx(s); 344 return (rbuf & 0xff); 345 } 346 } 347 } 348 349 void 350 dzputc(struct dz_linestate *ls, int ch) 351 { 352 int line; 353 u_short tcr; 354 int s; 355 extern const struct cdevsw dz_cdevsw; 356 357 /* if the dz has already been attached, the MI 358 driver will do the transmitting: */ 359 if (ls && ls->dz_sc) { 360 s = spltty(); 361 line = ls->dz_line; 362 putc(ch, &ls->dz_tty->t_outq); 363 tcr = dz->tcr; 364 if (!(tcr & (1 << line))) 365 dz->tcr = tcr | (1 << line); 366 dzxint(ls->dz_sc); 367 splx(s); 368 return; 369 } 370 371 /* use dzcnputc to do the transmitting: */ 372 dzcnputc(makedev(cdevsw_lookup_major(&dz_cdevsw), 0), ch); 373 } 374 #endif /* NDZKBD > 0 || NDZMS > 0 */ 375
Indexes created Wed Oct 01 15:09:59 GMT 2025