dz_vsbus.c revision 1.10
1 /* $NetBSD: dz_vsbus.c,v 1.10 1999/03/26 22:04:07 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 <vax/uba/dzreg.h> 57 #include <vax/uba/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 sc->sc_dr.dr_csr = (void *)(dz_regs + 0); 130 sc->sc_dr.dr_rbuf = (void *)(dz_regs + 4); 131 sc->sc_dr.dr_dtr = (void *)(dz_regs + 9); 132 sc->sc_dr.dr_break = (void *)(dz_regs + 13); 133 sc->sc_dr.dr_tbuf = (void *)(dz_regs + 12); 134 sc->sc_dr.dr_tcr = (void *)(dz_regs + 8); 135 sc->sc_dr.dr_dcd = (void *)(dz_regs + 13); 136 sc->sc_dr.dr_ring = (void *)(dz_regs + 13); 137 138 sc->sc_type = DZ_DZV; 139 140 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 141 scb_vecalloc(va->va_cvec - 4, dzrint, self->dv_unit, SCB_ISTACK); 142 printf("\n%s: 4 lines", self->dv_xname); 143 144 dzattach(sc); 145 146 if (((vax_confdata & 0x80) == 0) ||/* workstation, have lkc */ 147 (vax_boardtype == VAX_BTYP_48)) 148 config_found(self, 0, dz_print); 149 } 150 151 int 152 dzcngetc(dev) 153 dev_t dev; 154 { 155 int c = 0; 156 int mino = minor(dev); 157 u_short rbuf; 158 159 do { 160 while ((dz->csr & 0x80) == 0) 161 ; /* Wait for char */ 162 rbuf = dz->rbuf; 163 if (((rbuf >> 8) & 3) != mino) 164 continue; 165 c = rbuf & 0x7f; 166 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 167 168 if (c == 13) 169 c = 10; 170 171 return (c); 172 } 173 174 #define DZMAJOR 1 175 176 void 177 dzcnprobe(cndev) 178 struct consdev *cndev; 179 { 180 extern vaddr_t iospace; 181 int pri = CN_NORMAL, min = 0; 182 183 switch (vax_boardtype) { 184 case VAX_BTYP_410: 185 case VAX_BTYP_420: 186 case VAX_BTYP_43: 187 if (vax_confdata & 0x20) { 188 min = 3; 189 pri = CN_REMOTE; 190 } 191 break; 192 193 case VAX_BTYP_46: 194 /* if (vax_confdata & 0x100) */ 195 min = 3; 196 break; 197 198 case VAX_BTYP_49: 199 case VAX_BTYP_48: 200 min = 3; 201 break; 202 203 default: 204 pri = CN_DEAD; 205 break; 206 } 207 cndev->cn_pri = pri; 208 if (pri != CN_DEAD) { 209 cndev->cn_dev = makedev(DZMAJOR, min); 210 dz_regs = iospace; 211 ioaccess(iospace, 0x200A0000, 1); 212 } 213 } 214 215 void 216 dzcninit(cndev) 217 struct consdev *cndev; 218 { 219 dz = (void*)dz_regs; 220 221 dz->csr = 0; /* Disable scanning until initting is done */ 222 dz->tcr = (1 << minor(cndev->cn_dev)); /* Turn on xmitter */ 223 dz->csr = 0x20; /* Turn scanning back on */ 224 } 225 226 227 void 228 dzcnputc(dev,ch) 229 dev_t dev; 230 int ch; 231 { 232 int timeout = 1<<15; /* don't hang the machine! */ 233 int mino = minor(dev); 234 u_short tcr; 235 236 if (mfpr(PR_MAPEN) == 0) 237 return; 238 239 tcr = dz->tcr; /* remember which lines to scan */ 240 dz->tcr = (1 << mino); 241 242 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 243 if (--timeout < 0) 244 break; 245 dz->tdr = ch; /* Put the character */ 246 timeout = 1<<15; 247 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 248 if (--timeout < 0) 249 break; 250 251 dz->tcr = tcr; 252 } 253 254 void 255 dzcnpollc(dev, pollflag) 256 dev_t dev; 257 int pollflag; 258 { 259 static u_char mask; 260 261 if (pollflag) 262 mask = vsbus_setmask(0); 263 else 264 vsbus_setmask(mask); 265 } 266 267 #if NLKC 268 cons_decl(lkc); 269 270 void 271 lkccninit(cndev) 272 struct consdev *cndev; 273 { 274 dz = (void*)dz_regs; 275 276 dz->csr = 0; /* Disable scanning until initting is done */ 277 dz->tcr = 1; /* Turn off all but line 0's xmitter */ 278 dz->rbuf = 0x1c18; /* XXX */ 279 dz->csr = 0x20; /* Turn scanning back on */ 280 } 281 282 int 283 lkccngetc(dev) 284 dev_t dev; 285 { 286 int lkc_decode(int); 287 int c; 288 // u_char mask; 289 290 291 // mask = vsbus_setmask(0); /* save old state */ 292 293 loop: 294 while ((dz->csr & 0x80) == 0) 295 ; /* Wait for char */ 296 297 c = lkc_decode(dz->rbuf & 255); 298 if (c < 1) 299 goto loop; 300 301 // vsbus_clrintr(0x80); /* XXX */ 302 // vsbus_setmask(mask); 303 304 return (c); 305 } 306 #endif 307
Indexes created Wed Oct 01 07:09:59 GMT 2025