dz_vsbus.c revision 1.42
1 /* $NetBSD: dz_vsbus.c,v 1.42 2010/12/14 23:31:16 matt 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 1.42 2010/12/14 23:31:16 matt Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/conf.h> 39 #include <sys/cpu.h> 40 #include <sys/device.h> 41 #include <sys/file.h> 42 #include <sys/ioctl.h> 43 #include <sys/proc.h> 44 #include <sys/tty.h> 45 46 #include <dev/cons.h> 47 48 #include <machine/sid.h> 49 #include <machine/vsbus.h> 50 #include <machine/scb.h> 51 52 #include <arch/vax/vax/gencons.h> 53 54 #include <dev/dec/dzreg.h> 55 #include <dev/dec/dzvar.h> 56 57 #include "ioconf.h" 58 #include "locators.h" 59 #include "dzkbd.h" 60 #include "dzms.h" 61 #include "opt_cputype.h" 62 63 #if NDZKBD > 0 || NDZMS > 0 64 #include <dev/dec/dzkbdvar.h> 65 66 #if 0 67 static struct dz_linestate dz_conslinestate = { NULL, -1, NULL, NULL, NULL }; 68 #endif 69 #endif 70 71 static int dz_vsbus_match(device_t, cfdata_t, void *); 72 static void dz_vsbus_attach(device_t, device_t, void *); 73 74 static vaddr_t dz_regs; /* Used for console */ 75 76 CFATTACH_DECL_NEW(dz_vsbus, sizeof(struct dz_softc), 77 dz_vsbus_match, dz_vsbus_attach, NULL, NULL); 78 79 #define REG(name) short name; short X##name##X; 80 static volatile struct ss_dz {/* base address of DZ-controller: 0x200A0000 */ 81 REG(csr); /* 00 Csr: control/status register */ 82 REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */ 83 REG(tcr); /* 08 Tcr: transmit console register */ 84 REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */ 85 REG(lpr0); /* 10 Lpr0: */ 86 REG(lpr1); /* 14 Lpr0: */ 87 REG(lpr2); /* 18 Lpr0: */ 88 REG(lpr3); /* 1C Lpr0: */ 89 } *dz; 90 #undef REG 91 92 cons_decl(dz); 93 94 #if NDZKBD > 0 || NDZMS > 0 95 static int 96 dz_print(void *aux, const char *name) 97 { 98 #if 0 99 #if NDZKBD > 0 || NDZMS > 0 100 struct dz_attach_args *dz_args = aux; 101 if (name == NULL) { 102 aprint_normal (" line %d", dz_args->line); 103 if (dz_args->hwflags & DZ_HWFLAG_CONSOLE) 104 aprint_normal (" (console)"); 105 } 106 return (QUIET); 107 #else 108 if (name) 109 aprint_normal ("lkc at %s", name); 110 return (UNCONF); 111 #endif 112 #endif 113 return (UNCONF); 114 } 115 #endif 116 117 static int 118 dz_vsbus_match(device_t parent, cfdata_t cf, void *aux) 119 { 120 struct vsbus_attach_args * const va = aux; 121 struct ss_dz *dzP; 122 short i; 123 124 #if VAX53 || VAX49 || VAXANY 125 if (vax_boardtype == VAX_BTYP_53 || vax_boardtype == VAX_BTYP_49) 126 if (cf->cf_loc[VSBUSCF_CSR] != 0x25000000) 127 return 0; /* Ugly */ 128 #endif 129 130 dzP = (struct ss_dz *)va->va_addr; 131 i = dzP->tcr; 132 dzP->csr = DZ_CSR_MSE|DZ_CSR_TXIE; 133 dzP->tcr = 0; 134 DELAY(1000); 135 dzP->tcr = 1; 136 DELAY(100000); 137 dzP->tcr = i; 138 139 /* If the device doesn't exist, no interrupt has been generated */ 140 return 1; 141 } 142 143 static void 144 dz_vsbus_attach(device_t parent, device_t self, void *aux) 145 { 146 struct dz_softc * const sc = device_private(self); 147 struct vsbus_attach_args * const va = aux; 148 #if NDZKBD > 0 149 extern const struct cdevsw dz_cdevsw; 150 #endif 151 #if NDZKBD > 0 || NDZMS > 0 152 struct dzkm_attach_args daa; 153 #endif 154 int s, consline; 155 156 sc->sc_dev = self; 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 (cn_tab->cn_dev != makedev(cdevsw_lookup_major(&dz_cdevsw), 0)) { 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_dr.dr_firstreg = 0; 178 sc->sc_dr.dr_winsize = 14; 179 180 sc->sc_type = DZ_DZV; 181 182 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 183 184 scb_vecalloc(va->va_cvec, dzxint, sc, SCB_ISTACK, &sc->sc_tintrcnt); 185 scb_vecalloc(va->va_cvec - 4, dzrint, sc, SCB_ISTACK, &sc->sc_rintrcnt); 186 187 aprint_normal("\n"); 188 aprint_normal_dev(self, "4 lines"); 189 190 dzattach(sc, NULL, consline); 191 DELAY(10000); 192 193 if (consline != -1) 194 cn_set_magic("\033D"); /* set VAX DDB escape sequence */ 195 196 #if NDZKBD > 0 197 /* Don't touch this port if this is the console */ 198 if (cn_tab->cn_dev != makedev(cdevsw_lookup_major(&dz_cdevsw), 0)) { 199 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) 200 | DZ_LPR_8_BIT_CHAR; 201 daa.daa_line = 0; 202 daa.daa_flags = 203 (cn_tab->cn_pri == CN_INTERNAL ? DZKBD_CONSOLE : 0); 204 config_found(self, &daa, dz_print); 205 } 206 #endif 207 #if NDZMS > 0 208 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_8_BIT_CHAR \ 209 | DZ_LPR_PARENB | DZ_LPR_OPAR | 1 /* line */; 210 daa.daa_line = 1; 211 daa.daa_flags = 0; 212 config_found(self, &daa, dz_print); 213 #endif 214 s = spltty(); 215 dzrint(sc); 216 dzxint(sc); 217 splx(s); 218 } 219 220 int 221 dzcngetc(dev_t dev) 222 { 223 int c = 0, s; 224 int mino = minor(dev); 225 u_short rbuf; 226 227 s = spltty(); 228 do { 229 while ((dz->csr & 0x80) == 0) 230 ; /* Wait for char */ 231 rbuf = dz->rbuf; 232 if (((rbuf >> 8) & 3) != mino) 233 continue; 234 c = rbuf & 0x7f; 235 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 236 splx(s); 237 238 if (c == 13) 239 c = 10; 240 241 return (c); 242 } 243 244 void 245 dzcnprobe(struct consdev *cndev) 246 { 247 extern vaddr_t iospace; 248 int diagcons; 249 paddr_t ioaddr = 0x200A0000; 250 extern const struct cdevsw dz_cdevsw; 251 252 switch (vax_boardtype) { 253 case VAX_BTYP_410: 254 case VAX_BTYP_420: 255 case VAX_BTYP_43: 256 diagcons = (vax_confdata & 0x20 ? 3 : 0); 257 break; 258 259 case VAX_BTYP_46: 260 case VAX_BTYP_48: 261 diagcons = (vax_confdata & 0x100 ? 3 : 0); 262 break; 263 264 case VAX_BTYP_49: 265 ioaddr = 0x25000000; 266 diagcons = (vax_confdata & 8 ? 3 : 0); 267 break; 268 269 case VAX_BTYP_53: 270 ioaddr = 0x25000000; 271 diagcons = 3; 272 break; 273 274 default: 275 cndev->cn_pri = CN_DEAD; 276 return; 277 } 278 if (diagcons) 279 cndev->cn_pri = CN_REMOTE; 280 else 281 cndev->cn_pri = CN_NORMAL; 282 cndev->cn_dev = makedev(cdevsw_lookup_major(&dz_cdevsw), diagcons); 283 dz_regs = iospace; 284 dz = (void *)dz_regs; 285 ioaccess(iospace, ioaddr, 1); 286 dz->csr = 0; /* Disable scanning until initting is done */ 287 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 288 dz->csr = 0x20; /* Turn scanning back on */ 289 } 290 291 void 292 dzcninit(struct consdev *cndev) 293 { 294 dz = (void*)dz_regs; 295 296 dz->csr = 0; /* Disable scanning until initting is done */ 297 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 298 dz->csr = 0x20; /* Turn scanning back on */ 299 } 300 301 302 void 303 dzcnputc(dev_t dev, int ch) 304 { 305 int timeout = 1<<15; /* don't hang the machine! */ 306 int mino = minor(dev); 307 int s; 308 u_short tcr; 309 310 if (mfpr(PR_MAPEN) == 0) 311 return; 312 313 s = spltty(); 314 tcr = dz->tcr; /* remember which lines to scan */ 315 dz->tcr = (1 << mino); 316 317 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 318 if (--timeout < 0) 319 break; 320 dz->tdr = ch; /* Put the character */ 321 timeout = 1<<15; 322 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 323 if (--timeout < 0) 324 break; 325 326 dz->tcr = tcr; 327 splx(s); 328 } 329 330 void 331 dzcnpollc(dev_t dev, int pollflag) 332 { 333 static u_char mask; 334 335 if (pollflag) 336 mask = vsbus_setmask(0); 337 else 338 vsbus_setmask(mask); 339 } 340 341 #if NDZKBD > 0 || NDZMS > 0 342 int 343 dzgetc(struct dz_linestate *ls) 344 { 345 int line = ls->dz_line; 346 int s; 347 u_short rbuf; 348 349 s = spltty(); 350 for (;;) { 351 for(; (dz->csr & DZ_CSR_RX_DONE) == 0;); 352 rbuf = dz->rbuf; 353 if (((rbuf >> 8) & 3) == line) { 354 splx(s); 355 return (rbuf & 0xff); 356 } 357 } 358 } 359 360 void 361 dzputc(struct dz_linestate *ls, int ch) 362 { 363 int line; 364 u_short tcr; 365 int s; 366 extern const struct cdevsw dz_cdevsw; 367 368 /* if the dz has already been attached, the MI 369 driver will do the transmitting: */ 370 if (ls && ls->dz_sc) { 371 s = spltty(); 372 line = ls->dz_line; 373 putc(ch, &ls->dz_tty->t_outq); 374 tcr = dz->tcr; 375 if (!(tcr & (1 << line))) 376 dz->tcr = tcr | (1 << line); 377 dzxint(ls->dz_sc); 378 splx(s); 379 return; 380 } 381 382 /* use dzcnputc to do the transmitting: */ 383 dzcnputc(makedev(cdevsw_lookup_major(&dz_cdevsw), 0), ch); 384 } 385 #endif /* NDZKBD > 0 || NDZMS > 0 */ 386
Indexes created Wed Oct 01 19:09:53 GMT 2025