dz_vsbus.c revision 1.13
1 /* $NetBSD: dz_vsbus.c,v 1.13 1999/06/06 19:10:49 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 <machine/../vax/gencons.h> 55 56 #include <dev/qbus/dzreg.h> 57 #include <dev/qbus/dzvar.h> 58 59 #include "ioconf.h" 60 #include "lkc.h" 61 62 static int dz_vsbus_match __P((struct device *, struct cfdata *, void *)); 63 static void dz_vsbus_attach __P((struct device *, struct device *, void *)); 64 static int dz_print __P((void *, const char *)); 65 66 static vaddr_t dz_regs; /* Used for console */ 67 68 struct cfattach dz_vsbus_ca = { 69 sizeof(struct dz_softc), dz_vsbus_match, dz_vsbus_attach 70 }; 71 72 #define REG(name) short name; short X##name##X; 73 static volatile struct ss_dz {/* base address of DZ-controller: 0x200A0000 */ 74 REG(csr); /* 00 Csr: control/status register */ 75 REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */ 76 REG(tcr); /* 08 Tcr: transmit console register */ 77 REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */ 78 REG(lpr0); /* 10 Lpr0: */ 79 REG(lpr1); /* 14 Lpr0: */ 80 REG(lpr2); /* 18 Lpr0: */ 81 REG(lpr3); /* 1C Lpr0: */ 82 } *dz; 83 #undef REG 84 85 cons_decl(dz); 86 87 int 88 dz_print(aux, name) 89 void *aux; 90 const char *name; 91 { 92 if (name) 93 printf ("lkc at %s", name); 94 return (UNCONF); 95 } 96 97 static int 98 dz_vsbus_match(parent, cf, aux) 99 struct device *parent; 100 struct cfdata *cf; 101 void *aux; 102 { 103 struct vsbus_attach_args *va = aux; 104 struct ss_dz *dzP; 105 short i; 106 107 dzP = (struct ss_dz *)va->va_addr; 108 i = dzP->tcr; 109 dzP->csr = DZ_CSR_MSE; 110 dzP->tcr = 0; 111 DELAY(1000); 112 dzP->tcr = 1; 113 DELAY(100000); 114 dzP->tcr = i; 115 va->va_ivec = dzxint; 116 117 /* If the device doesn't exist, no interrupt has been generated */ 118 return 1; 119 } 120 121 static void 122 dz_vsbus_attach(parent, self, aux) 123 struct device *parent, *self; 124 void *aux; 125 { 126 struct dz_softc *sc = (void *)self; 127 struct vsbus_attach_args *va = aux; 128 129 /* 130 * XXX - This is evil and ugly, but... 131 * due to the nature of how bus_space_* works on VAX, this will 132 * be perfectly good until everything is converted. 133 */ 134 sc->sc_ioh = dz_regs; 135 sc->sc_dr.dr_csr = 0; 136 sc->sc_dr.dr_rbuf = 4; 137 sc->sc_dr.dr_dtr = 9; 138 sc->sc_dr.dr_break = 13; 139 sc->sc_dr.dr_tbuf = 12; 140 sc->sc_dr.dr_tcr = 8; 141 sc->sc_dr.dr_dcd = 13; 142 sc->sc_dr.dr_ring = 13; 143 144 sc->sc_type = DZ_DZV; 145 146 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 147 scb_vecalloc(va->va_cvec - 4, dzrint, self->dv_unit, SCB_ISTACK); 148 printf("\n%s: 4 lines", self->dv_xname); 149 150 dzattach(sc); 151 152 if (((vax_confdata & 0x80) == 0) ||/* workstation, have lkc */ 153 (vax_boardtype == VAX_BTYP_48)) 154 if (cn_tab->cn_pri > CN_NORMAL) /* Passed cnsl detect */ 155 config_found(self, 0, dz_print); 156 } 157 158 int 159 dzcngetc(dev) 160 dev_t dev; 161 { 162 int c = 0; 163 int mino = minor(dev); 164 u_short rbuf; 165 166 do { 167 while ((dz->csr & 0x80) == 0) 168 ; /* Wait for char */ 169 rbuf = dz->rbuf; 170 if (((rbuf >> 8) & 3) != mino) 171 continue; 172 c = rbuf & 0x7f; 173 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 174 175 if (c == 13) 176 c = 10; 177 178 return (c); 179 } 180 181 #define DZMAJOR 1 182 183 void 184 dzcnprobe(cndev) 185 struct consdev *cndev; 186 { 187 extern vaddr_t iospace; 188 int diagcons; 189 190 switch (vax_boardtype) { 191 case VAX_BTYP_410: 192 case VAX_BTYP_420: 193 case VAX_BTYP_43: 194 diagcons = (vax_confdata & 0x20 ? 3 : 0); 195 break; 196 197 case VAX_BTYP_46: 198 case VAX_BTYP_48: 199 diagcons = (vax_confdata & 0x100 ? 3 : 0); 200 break; 201 202 case VAX_BTYP_49: 203 diagcons = 3; 204 break; 205 206 default: 207 cndev->cn_pri = CN_DEAD; 208 return; 209 } 210 if (diagcons) 211 cndev->cn_pri = CN_REMOTE; 212 else 213 cndev->cn_pri = CN_NORMAL; 214 cndev->cn_dev = makedev(DZMAJOR, diagcons); 215 dz_regs = iospace; 216 ioaccess(iospace, 0x200A0000, 1); 217 } 218 219 void 220 dzcninit(cndev) 221 struct consdev *cndev; 222 { 223 dz = (void*)dz_regs; 224 225 dz->csr = 0; /* Disable scanning until initting is done */ 226 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 227 dz->csr = 0x20; /* Turn scanning back on */ 228 } 229 230 231 void 232 dzcnputc(dev,ch) 233 dev_t dev; 234 int ch; 235 { 236 int timeout = 1<<15; /* don't hang the machine! */ 237 int mino = minor(dev); 238 u_short tcr; 239 240 if (mfpr(PR_MAPEN) == 0) 241 return; 242 243 tcr = dz->tcr; /* remember which lines to scan */ 244 dz->tcr = (1 << mino); 245 246 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 247 if (--timeout < 0) 248 break; 249 dz->tdr = ch; /* Put the character */ 250 timeout = 1<<15; 251 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 252 if (--timeout < 0) 253 break; 254 255 dz->tcr = tcr; 256 } 257 258 void 259 dzcnpollc(dev, pollflag) 260 dev_t dev; 261 int pollflag; 262 { 263 static u_char mask; 264 265 if (pollflag) 266 mask = vsbus_setmask(0); 267 else 268 vsbus_setmask(mask); 269 } 270 271 #if NLKC 272 cons_decl(lkc); 273 274 void 275 lkccninit(cndev) 276 struct consdev *cndev; 277 { 278 dz = (void*)dz_regs; 279 280 dz->csr = 0; /* Disable scanning until initting is done */ 281 dz->tcr = 1; /* Turn off all but line 0's xmitter */ 282 dz->rbuf = 0x1c18; /* XXX */ 283 dz->csr = 0x20; /* Turn scanning back on */ 284 } 285 286 int 287 lkccngetc(dev) 288 dev_t dev; 289 { 290 int lkc_decode(int); 291 int c; 292 // u_char mask; 293 294 295 // mask = vsbus_setmask(0); /* save old state */ 296 297 loop: 298 while ((dz->csr & 0x80) == 0) 299 ; /* Wait for char */ 300 301 c = lkc_decode(dz->rbuf & 255); 302 if (c < 1) 303 goto loop; 304 305 // vsbus_clrintr(0x80); /* XXX */ 306 // vsbus_setmask(mask); 307 308 return (c); 309 } 310 #endif 311
Indexes created Tue Sep 30 11:09:46 GMT 2025