dz_vsbus.c revision 1.15
1 /* $NetBSD: dz_vsbus.c,v 1.15 2001/01/28 19:26:34 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 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/qbus/dzreg.h> 57 #include <dev/qbus/dzvar.h> 58 59 #include "ioconf.h" 60 #include "dzkbd.h" 61 #include "dzms.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(struct device *, struct cfdata *, void *); 72 static void dz_vsbus_attach(struct device *, struct device *, void *); 73 74 static vaddr_t dz_regs; /* Used for console */ 75 76 struct cfattach dz_vsbus_ca = { 77 sizeof(struct dz_softc), dz_vsbus_match, dz_vsbus_attach 78 }; 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 cdev_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 printf (" line %d", dz_args->line); 105 if (dz_args->hwflags & DZ_HWFLAG_CONSOLE) 106 printf (" (console)"); 107 } 108 return (QUIET); 109 #else 110 if (name) 111 printf ("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 dzP = (struct ss_dz *)va->va_addr; 127 i = dzP->tcr; 128 dzP->csr = DZ_CSR_MSE|DZ_CSR_TXIE; 129 dzP->tcr = 0; 130 DELAY(1000); 131 dzP->tcr = 1; 132 DELAY(100000); 133 dzP->tcr = i; 134 135 /* If the device doesn't exist, no interrupt has been generated */ 136 return 1; 137 } 138 139 static void 140 dz_vsbus_attach(struct device *parent, struct device *self, void *aux) 141 { 142 struct dz_softc *sc = (void *)self; 143 struct vsbus_attach_args *va = aux; 144 #if NDZKBD > 0 || NDZMS > 0 145 struct dzkm_attach_args daa; 146 #endif 147 148 /* 149 * XXX - This is evil and ugly, but... 150 * due to the nature of how bus_space_* works on VAX, this will 151 * be perfectly good until everything is converted. 152 */ 153 sc->sc_ioh = dz_regs; 154 sc->sc_dr.dr_csr = 0; 155 sc->sc_dr.dr_rbuf = 4; 156 sc->sc_dr.dr_dtr = 9; 157 sc->sc_dr.dr_break = 13; 158 sc->sc_dr.dr_tbuf = 12; 159 sc->sc_dr.dr_tcr = 8; 160 sc->sc_dr.dr_dcd = 13; 161 sc->sc_dr.dr_ring = 13; 162 163 sc->sc_type = DZ_DZV; 164 165 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 166 167 scb_vecalloc(va->va_cvec, dzxint, sc, SCB_ISTACK, &sc->sc_tintrcnt); 168 scb_vecalloc(va->va_cvec - 4, dzrint, sc, SCB_ISTACK, &sc->sc_rintrcnt); 169 170 printf("\n%s: 4 lines", self->dv_xname); 171 172 dzattach(sc, NULL); 173 174 #if NDZKBD > 0 175 /* Don't change speed if this is the console */ 176 if (cn_tab->cn_dev != makedev(getmajor(dzopen), 0)) 177 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) 178 | DZ_LPR_8_BIT_CHAR; 179 daa.daa_line = 0; 180 daa.daa_flags = (cn_tab->cn_pri == CN_INTERNAL ? DZKBD_CONSOLE : 0); 181 config_found(self, &daa, dz_print); 182 #endif 183 #if NDZMS > 0 184 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_7_BIT_CHAR \ 185 | DZ_LPR_PARENB | DZ_LPR_OPAR | 1 /* line */; 186 daa.daa_line = 1; 187 daa.daa_flags = 0; 188 config_found(self, &daa, dz_print); 189 #endif 190 dzrint(sc); 191 dzxint(sc); 192 } 193 194 int 195 dzcngetc(dev_t dev) 196 { 197 int c = 0; 198 int mino = minor(dev); 199 u_short rbuf; 200 201 do { 202 while ((dz->csr & 0x80) == 0) 203 ; /* Wait for char */ 204 rbuf = dz->rbuf; 205 if (((rbuf >> 8) & 3) != mino) 206 continue; 207 c = rbuf & 0x7f; 208 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 209 210 if (c == 13) 211 c = 10; 212 213 return (c); 214 } 215 216 void 217 dzcnprobe(struct consdev *cndev) 218 { 219 extern vaddr_t iospace; 220 int diagcons; 221 paddr_t ioaddr = 0x200A0000; 222 223 switch (vax_boardtype) { 224 case VAX_BTYP_410: 225 case VAX_BTYP_420: 226 case VAX_BTYP_43: 227 diagcons = (vax_confdata & 0x20 ? 3 : 0); 228 break; 229 230 case VAX_BTYP_46: 231 case VAX_BTYP_48: 232 diagcons = (vax_confdata & 0x100 ? 3 : 0); 233 break; 234 235 case VAX_BTYP_49: 236 ioaddr = 0x25000000; 237 diagcons = 3; 238 break; 239 240 default: 241 cndev->cn_pri = CN_DEAD; 242 return; 243 } 244 if (diagcons) 245 cndev->cn_pri = CN_REMOTE; 246 else 247 cndev->cn_pri = CN_NORMAL; 248 cndev->cn_dev = makedev(getmajor(dzopen), diagcons); 249 (vaddr_t)dz = dz_regs = iospace; 250 ioaccess(iospace, ioaddr, 1); 251 } 252 253 void 254 dzcninit(struct consdev *cndev) 255 { 256 dz = (void*)dz_regs; 257 258 dz->csr = 0; /* Disable scanning until initting is done */ 259 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 260 dz->csr = 0x20; /* Turn scanning back on */ 261 } 262 263 264 void 265 dzcnputc(dev_t dev, int ch) 266 { 267 int timeout = 1<<15; /* don't hang the machine! */ 268 int mino = minor(dev); 269 u_short tcr; 270 271 if (mfpr(PR_MAPEN) == 0) 272 return; 273 274 tcr = dz->tcr; /* remember which lines to scan */ 275 dz->tcr = (1 << mino); 276 277 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 278 if (--timeout < 0) 279 break; 280 dz->tdr = ch; /* Put the character */ 281 timeout = 1<<15; 282 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 283 if (--timeout < 0) 284 break; 285 286 dz->tcr = tcr; 287 } 288 289 void 290 dzcnpollc(dev_t dev, int pollflag) 291 { 292 static u_char mask; 293 294 if (pollflag) 295 mask = vsbus_setmask(0); 296 else 297 vsbus_setmask(mask); 298 } 299 300 #if NDZKBD > 0 || NDZMS > 0 301 int 302 dzgetc(struct dz_linestate *ls) 303 { 304 int line = ls->dz_line; 305 u_short rbuf; 306 307 for (;;) { 308 for(; (dz->csr & DZ_CSR_RX_DONE) == 0;); 309 rbuf = dz->rbuf; 310 if (((rbuf >> 8) & 3) == line) 311 return (rbuf & 0xff); 312 } 313 } 314 315 void 316 dzputc(struct dz_linestate *ls, int ch) 317 { 318 int line = 0; /* = ls->dz_line; */ 319 u_short tcr; 320 int s; 321 322 /* if the dz has already been attached, the MI 323 driver will do the transmitting: */ 324 if (ls && ls->dz_sc) { 325 s = spltty(); 326 putc(ch, &ls->dz_sc->sc_dz[line].dz_tty->t_outq); 327 tcr = dz->tcr; 328 if (!(tcr & (1 << line))) 329 dz->tcr = tcr | (1 << line); 330 dzxint(ls->dz_sc); 331 splx(s); 332 return; 333 } 334 335 /* use dzcnputc to do the transmitting: */ 336 dzcnputc(makedev(getmajor(dzopen), line), ch); 337 } 338 #endif /* NDZKBD > 0 || NDZMS > 0 */ 339
Indexes created Wed Oct 01 15:09:59 GMT 2025