dz_vsbus.c revision 1.46
1 /* $NetBSD: dz_vsbus.c,v 1.46 2021/08/07 16:19:07 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: dz_vsbus.c,v 1.46 2021/08/07 16:19:07 thorpej Exp $"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/conf.h> 33 #include <sys/cpu.h> 34 #include <sys/device.h> 35 #include <sys/file.h> 36 #include <sys/ioctl.h> 37 #include <sys/proc.h> 38 #include <sys/tty.h> 39 40 #include <dev/cons.h> 41 42 #include <machine/sid.h> 43 #include <machine/vsbus.h> 44 #include <machine/scb.h> 45 46 #include <arch/vax/vax/gencons.h> 47 48 #include <dev/dec/dzreg.h> 49 #include <dev/dec/dzvar.h> 50 51 #include "ioconf.h" 52 #include "locators.h" 53 #include "dzkbd.h" 54 #include "dzms.h" 55 #include "opt_cputype.h" 56 57 #if NDZKBD > 0 || NDZMS > 0 58 #include <dev/dec/dzkbdvar.h> 59 60 #if 0 61 static struct dz_linestate dz_conslinestate = { NULL, -1, NULL, NULL, NULL }; 62 #endif 63 #endif 64 65 static int dz_vsbus_match(device_t, cfdata_t, void *); 66 static void dz_vsbus_attach(device_t, device_t, void *); 67 68 static vaddr_t dz_regs; /* Used for console */ 69 70 CFATTACH_DECL_NEW(dz_vsbus, sizeof(struct dz_softc), 71 dz_vsbus_match, dz_vsbus_attach, NULL, NULL); 72 73 #define REG(name) short name; short X##name##X; 74 static volatile struct ss_dz {/* base address of DZ-controller: 0x200A0000 */ 75 REG(csr); /* 00 Csr: control/status register */ 76 REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */ 77 REG(tcr); /* 08 Tcr: transmit console register */ 78 REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */ 79 REG(lpr0); /* 10 Lpr0: */ 80 REG(lpr1); /* 14 Lpr0: */ 81 REG(lpr2); /* 18 Lpr0: */ 82 REG(lpr3); /* 1C Lpr0: */ 83 } *dz; 84 #undef REG 85 86 cons_decl(dz); 87 88 #if NDZKBD > 0 || NDZMS > 0 89 static int 90 dz_print(void *aux, const char *name) 91 { 92 #if 0 93 #if NDZKBD > 0 || NDZMS > 0 94 struct dz_attach_args *dz_args = aux; 95 if (name == NULL) { 96 aprint_normal (" line %d", dz_args->line); 97 if (dz_args->hwflags & DZ_HWFLAG_CONSOLE) 98 aprint_normal (" (console)"); 99 } 100 return (QUIET); 101 #else 102 if (name) 103 aprint_normal ("lkc at %s", name); 104 return (UNCONF); 105 #endif 106 #endif 107 return (UNCONF); 108 } 109 #endif 110 111 static int 112 dz_vsbus_match(device_t parent, cfdata_t cf, void *aux) 113 { 114 struct vsbus_attach_args * const va = aux; 115 struct ss_dz *dzP; 116 short i; 117 118 #if VAX53 || VAX49 || VAXANY 119 if (vax_boardtype == VAX_BTYP_53 || vax_boardtype == VAX_BTYP_49) 120 if (cf->cf_loc[VSBUSCF_CSR] != DZ_CSR_KA49) 121 return 0; /* Ugly */ 122 #endif 123 124 dzP = (struct ss_dz *)va->va_addr; 125 i = dzP->tcr; 126 dzP->csr = DZ_CSR_MSE|DZ_CSR_TXIE; 127 dzP->tcr = 0; 128 DELAY(1000); 129 dzP->tcr = 1; 130 DELAY(100000); 131 dzP->tcr = i; 132 133 /* If the device doesn't exist, no interrupt has been generated */ 134 return 1; 135 } 136 137 static void 138 dz_vsbus_attach(device_t parent, device_t self, void *aux) 139 { 140 struct dz_softc * const sc = device_private(self); 141 struct vsbus_attach_args * const va = aux; 142 #if NDZKBD > 0 143 extern const struct cdevsw dz_cdevsw; 144 #endif 145 #if NDZKBD > 0 || NDZMS > 0 146 struct dzkm_attach_args daa; 147 #endif 148 int s, consline; 149 150 sc->sc_dev = self; 151 /* 152 * XXX - This is evil and ugly, but... 153 * due to the nature of how bus_space_* works on VAX, this will 154 * be perfectly good until everything is converted. 155 */ 156 if (cn_tab->cn_dev != makedev(cdevsw_lookup_major(&dz_cdevsw), 0)) { 157 dz_regs = vax_map_physmem(va->va_paddr, 1); 158 consline = -1; 159 } else 160 consline = minor(cn_tab->cn_dev); 161 sc->sc_ioh = dz_regs; 162 sc->sc_dr.dr_csr = 0; 163 sc->sc_dr.dr_rbuf = 4; 164 sc->sc_dr.dr_dtr = 9; 165 sc->sc_dr.dr_break = 13; 166 sc->sc_dr.dr_tbuf = 12; 167 sc->sc_dr.dr_tcr = 8; 168 sc->sc_dr.dr_dcd = 13; 169 sc->sc_dr.dr_ring = 13; 170 171 sc->sc_dr.dr_firstreg = 0; 172 sc->sc_dr.dr_winsize = 14; 173 174 sc->sc_type = DZ_DZV; 175 176 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 177 178 scb_vecalloc(va->va_cvec, dzxint, sc, SCB_ISTACK, &sc->sc_tintrcnt); 179 scb_vecalloc(va->va_cvec - 4, dzrint, sc, SCB_ISTACK, &sc->sc_rintrcnt); 180 181 aprint_normal("\n"); 182 aprint_normal_dev(self, "4 lines"); 183 184 dzattach(sc, NULL, consline); 185 DELAY(10000); 186 187 if (consline != -1) 188 cn_set_magic("\033D"); /* set VAX DDB escape sequence */ 189 190 #if NDZKBD > 0 191 /* Don't touch this port if this is the console */ 192 if (cn_tab->cn_dev != makedev(cdevsw_lookup_major(&dz_cdevsw), 0)) { 193 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) 194 | DZ_LPR_8_BIT_CHAR; 195 daa.daa_line = 0; 196 daa.daa_flags = 197 (cn_tab->cn_pri == CN_INTERNAL ? DZKBD_CONSOLE : 0); 198 config_found(self, &daa, dz_print, CFARGS_NONE); 199 } 200 #endif 201 #if NDZMS > 0 202 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_8_BIT_CHAR \ 203 | DZ_LPR_PARENB | DZ_LPR_OPAR | 1 /* line */; 204 daa.daa_line = 1; 205 daa.daa_flags = 0; 206 config_found(self, &daa, dz_print, CFARGS_NONE); 207 #endif 208 s = spltty(); 209 dzrint(sc); 210 dzxint(sc); 211 splx(s); 212 } 213 214 int 215 dzcngetc(dev_t dev) 216 { 217 int c = 0, s; 218 int mino = minor(dev); 219 u_short rbuf; 220 221 s = spltty(); 222 do { 223 while ((dz->csr & 0x80) == 0) 224 ; /* Wait for char */ 225 rbuf = dz->rbuf; 226 if (((rbuf >> 8) & 3) != mino) 227 continue; 228 c = rbuf & 0x7f; 229 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 230 splx(s); 231 232 if (c == 13) 233 c = 10; 234 235 return (c); 236 } 237 238 void 239 dzcnprobe(struct consdev *cndev) 240 { 241 extern vaddr_t iospace; 242 int diagcons; 243 paddr_t ioaddr = 0x200A0000; 244 extern const struct cdevsw dz_cdevsw; 245 246 switch (vax_boardtype) { 247 case VAX_BTYP_410: 248 case VAX_BTYP_420: 249 case VAX_BTYP_43: 250 diagcons = (vax_confdata & 0x20 ? 3 : 0); 251 break; 252 253 case VAX_BTYP_46: 254 case VAX_BTYP_48: 255 diagcons = (vax_confdata & 0x100 ? 3 : 0); 256 break; 257 258 case VAX_BTYP_49: 259 ioaddr = DZ_CSR_KA49; 260 diagcons = (vax_confdata & 8 ? 3 : 0); 261 break; 262 263 case VAX_BTYP_53: 264 ioaddr = DZ_CSR_KA49; 265 diagcons = 3; 266 break; 267 268 default: 269 cndev->cn_pri = CN_DEAD; 270 return; 271 } 272 if (diagcons) 273 cndev->cn_pri = CN_REMOTE; 274 else 275 cndev->cn_pri = CN_NORMAL; 276 cndev->cn_dev = makedev(cdevsw_lookup_major(&dz_cdevsw), diagcons); 277 dz_regs = iospace; 278 dz = (void *)dz_regs; 279 ioaccess(iospace, ioaddr, 1); 280 dz->csr = 0; /* Disable scanning until initting is done */ 281 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 282 dz->csr = 0x20; /* Turn scanning back on */ 283 } 284 285 void 286 dzcninit(struct consdev *cndev) 287 { 288 dz = (void*)dz_regs; 289 290 dz->csr = 0; /* Disable scanning until initting is done */ 291 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 292 dz->csr = 0x20; /* Turn scanning back on */ 293 } 294 295 296 void 297 dzcnputc(dev_t dev, int ch) 298 { 299 int timeout = 1<<15; /* don't hang the machine! */ 300 int mino = minor(dev); 301 int s; 302 u_short tcr; 303 304 if (mfpr(PR_MAPEN) == 0) 305 return; 306 307 s = spltty(); 308 tcr = dz->tcr; /* remember which lines to scan */ 309 dz->tcr = (1 << mino); 310 311 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 312 if (--timeout < 0) 313 break; 314 dz->tdr = ch; /* Put the character */ 315 timeout = 1<<15; 316 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 317 if (--timeout < 0) 318 break; 319 320 dz->tcr = tcr; 321 splx(s); 322 } 323 324 void 325 dzcnpollc(dev_t dev, int pollflag) 326 { 327 static u_char mask; 328 329 if (pollflag) 330 mask = vsbus_setmask(0); 331 else 332 vsbus_setmask(mask); 333 } 334 335 #if NDZKBD > 0 || NDZMS > 0 336 int 337 dzgetc(struct dz_linestate *ls) 338 { 339 int line = ls->dz_line; 340 int s; 341 u_short rbuf; 342 343 s = spltty(); 344 for (;;) { 345 for(; (dz->csr & DZ_CSR_RX_DONE) == 0;); 346 rbuf = dz->rbuf; 347 if (((rbuf >> 8) & 3) == line) { 348 splx(s); 349 return (rbuf & 0xff); 350 } 351 } 352 } 353 354 void 355 dzputc(struct dz_linestate *ls, int ch) 356 { 357 int line; 358 u_short tcr; 359 int s; 360 extern const struct cdevsw dz_cdevsw; 361 362 /* if the dz has already been attached, the MI 363 driver will do the transmitting: */ 364 if (ls && ls->dz_sc) { 365 s = spltty(); 366 line = ls->dz_line; 367 putc(ch, &ls->dz_tty->t_outq); 368 tcr = dz->tcr; 369 if (!(tcr & (1 << line))) 370 dz->tcr = tcr | (1 << line); 371 dzxint(ls->dz_sc); 372 splx(s); 373 return; 374 } 375 376 /* use dzcnputc to do the transmitting: */ 377 dzcnputc(makedev(cdevsw_lookup_major(&dz_cdevsw), 0), ch); 378 } 379 #endif /* NDZKBD > 0 || NDZMS > 0 */ 380
Indexes created Wed Oct 01 13:09:50 GMT 2025