dz_vsbus.c revision 1.7
1 /* $NetBSD: dz_vsbus.c,v 1.7 1999/02/02 18:37:21 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 53 #include <machine/../vax/gencons.h> 54 55 #include <vax/uba/dzreg.h> 56 #include <vax/uba/dzvar.h> 57 58 #include "ioconf.h" 59 #include "lkc.h" 60 61 static int dz_vsbus_match __P((struct device *, struct cfdata *, void *)); 62 static void dz_vsbus_attach __P((struct device *, struct device *, void *)); 63 static int dz_print __P((void *, const char *)); 64 static void txon __P((void)); 65 static void rxon __P((void)); 66 67 static vaddr_t dz_regs; /* Used for console */ 68 69 struct cfattach dz_vsbus_ca = { 70 sizeof(struct dz_softc), dz_vsbus_match, dz_vsbus_attach 71 }; 72 73 static void 74 rxon() 75 { 76 vsbus_intr_enable(inr_sr); 77 } 78 79 static void 80 txon() 81 { 82 vsbus_intr_enable(inr_st); 83 } 84 85 int 86 dz_print(aux, name) 87 void *aux; 88 const char *name; 89 { 90 if (name) 91 printf ("lkc at %s", name); 92 return (UNCONF); 93 } 94 95 static int 96 dz_vsbus_match(parent, cf, aux) 97 struct device *parent; 98 struct cfdata *cf; 99 void *aux; 100 { 101 struct vsbus_attach_args *va = aux; 102 if (va->va_type == inr_sr) 103 return 1; 104 return 0; 105 } 106 107 static void 108 dz_vsbus_attach(parent, self, aux) 109 struct device *parent, *self; 110 void *aux; 111 { 112 struct dz_softc *sc = (void *)self; 113 114 sc->sc_dr.dr_csr = (void *)(dz_regs + 0); 115 sc->sc_dr.dr_rbuf = (void *)(dz_regs + 4); 116 sc->sc_dr.dr_dtr = (void *)(dz_regs + 9); 117 sc->sc_dr.dr_break = (void *)(dz_regs + 13); 118 sc->sc_dr.dr_tbuf = (void *)(dz_regs + 12); 119 sc->sc_dr.dr_tcr = (void *)(dz_regs + 8); 120 sc->sc_dr.dr_dcd = (void *)(dz_regs + 13); 121 sc->sc_dr.dr_ring = (void *)(dz_regs + 13); 122 123 sc->sc_type = DZ_DZV; 124 125 sc->sc_txon = txon; 126 sc->sc_rxon = rxon; 127 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 128 vsbus_intr_attach(inr_sr, dzrint, 0); 129 vsbus_intr_attach(inr_st, dzxint, 0); 130 printf(": DC367"); 131 132 dzattach(sc); 133 134 if ((vax_confdata & 0x80) == 0) /* workstation, have lkc */ 135 config_found(self, 0, dz_print); 136 } 137 138 /*----------------------------------------------------------------------*/ 139 140 #define REG(name) short name; short X##name##X; 141 static volatile struct {/* base address of DZ-controller: 0x200A0000 */ 142 REG(csr); /* 00 Csr: control/status register */ 143 REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */ 144 REG(tcr); /* 08 Tcr: transmit console register */ 145 REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */ 146 REG(lpr0); /* 10 Lpr0: */ 147 REG(lpr1); /* 14 Lpr0: */ 148 REG(lpr2); /* 18 Lpr0: */ 149 REG(lpr3); /* 1C Lpr0: */ 150 } *dz = (void*)0x200A0000; 151 #undef REG 152 153 cons_decl(dz); 154 155 int 156 dzcngetc(dev) 157 dev_t dev; 158 { 159 int c = 0; 160 int mino = minor(dev); 161 u_short rbuf; 162 #if 0 163 u_char mask; 164 165 mask = vs_cpu->vc_intmsk; /* save old state */ 166 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 167 #endif 168 169 do { 170 while ((dz->csr & 0x80) == 0) 171 ; /* Wait for char */ 172 rbuf = dz->rbuf; 173 if (((rbuf >> 8) & 3) != mino) 174 continue; 175 c = rbuf & 0x7f; 176 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 177 178 if (c == 13) 179 c = 10; 180 181 #if 0 182 vs_cpu->vc_intclr = 0x80; /* clear te interrupt request */ 183 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 184 #endif 185 186 return (c); 187 } 188 189 #define DZMAJOR 1 190 191 void 192 dzcnprobe(cndev) 193 struct consdev *cndev; 194 { 195 extern vaddr_t iospace; 196 197 switch (vax_boardtype) { 198 case VAX_BTYP_410: 199 case VAX_BTYP_420: 200 case VAX_BTYP_43: 201 case VAX_BTYP_46: 202 cndev->cn_dev = makedev(DZMAJOR, 3); 203 dz_regs = iospace; 204 ioaccess(iospace, 0x200A0000, 1); 205 cndev->cn_pri = CN_NORMAL; 206 break; 207 208 default: 209 cndev->cn_pri = CN_DEAD; 210 break; 211 } 212 213 return; 214 } 215 216 void 217 dzcninit(cndev) 218 struct consdev *cndev; 219 { 220 dz = (void*)dz_regs; 221 222 dz->csr = 0; /* Disable scanning until initting is done */ 223 dz->tcr = 8; /* Turn off all but line 3's xmitter */ 224 dz->csr = 0x20; /* Turn scanning back on */ 225 } 226 227 228 void 229 dzcnputc(dev,ch) 230 dev_t dev; 231 int ch; 232 { 233 int timeout = 1<<15; /* don't hang the machine! */ 234 int mino = minor(dev); 235 u_short tcr; 236 #if 0 237 u_char mask; 238 #endif 239 240 if (mfpr(PR_MAPEN) == 0) 241 return; 242 243 #if 0 244 mask = vs_cpu->vc_intmsk; /* save old state */ 245 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 246 #endif 247 tcr = dz->tcr; /* remember which lines to scan */ 248 dz->tcr = (1 << mino); 249 250 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 251 if (--timeout < 0) 252 break; 253 dz->tdr = ch; /* Put the character */ 254 255 dz->tcr = tcr; 256 #if 0 257 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 258 #endif 259 } 260 261 void 262 dzcnpollc(dev, pollflag) 263 dev_t dev; 264 int pollflag; 265 { 266 } 267 268 #if NLKC 269 cons_decl(lkc); 270 271 void 272 lkccninit(cndev) 273 struct consdev *cndev; 274 { 275 dz = (void*)dz_regs; 276 277 dz->csr = 0; /* Disable scanning until initting is done */ 278 dz->tcr = 1; /* Turn off all but line 0's xmitter */ 279 dz->rbuf = 0x1c18; /* XXX */ 280 dz->csr = 0x20; /* Turn scanning back on */ 281 } 282 283 int 284 lkccngetc(dev) 285 dev_t dev; 286 { 287 int lkc_decode(int); 288 int c; 289 #if 0 290 u_char mask; 291 292 mask = vs_cpu->vc_intmsk; /* save old state */ 293 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 294 #endif 295 296 loop: 297 while ((dz->csr & 0x80) == 0) 298 ; /* Wait for char */ 299 300 c = lkc_decode(dz->rbuf & 255); 301 if (c < 1) 302 goto loop; 303 304 #if 0 305 vs_cpu->vc_intclr = 0x80; /* clear te interrupt request */ 306 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 307 #endif 308 309 return (c); 310 } 311 #endif 312
Indexes created Tue Sep 30 11:09:46 GMT 2025