dz_vsbus.c revision 1.6
1 /* $NetBSD: dz_vsbus.c,v 1.6 1998/08/10 14:47:16 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/../vax/gencons.h> 52 53 #include <vax/uba/dzreg.h> 54 #include <vax/uba/dzvar.h> 55 56 #include "ioconf.h" 57 #include "lkc.h" 58 59 static int dz_vsbus_match __P((struct device *, struct cfdata *, void *)); 60 static void dz_vsbus_attach __P((struct device *, struct device *, void *)); 61 static int dz_print __P((void *, const char *)); 62 static void txon __P((void)); 63 static void rxon __P((void)); 64 65 struct cfattach dz_vsbus_ca = { 66 sizeof(struct dz_softc), dz_vsbus_match, dz_vsbus_attach 67 }; 68 69 static void 70 rxon() 71 { 72 vsbus_intr_enable(inr_sr); 73 } 74 75 static void 76 txon() 77 { 78 vsbus_intr_enable(inr_st); 79 } 80 81 int 82 dz_print(aux, name) 83 void *aux; 84 const char *name; 85 { 86 if (name) 87 printf ("lkc at %s", name); 88 return (UNCONF); 89 } 90 91 static int 92 dz_vsbus_match(parent, cf, aux) 93 struct device *parent; 94 struct cfdata *cf; 95 void *aux; 96 { 97 struct vsbus_attach_args *va = aux; 98 if (va->va_type == inr_sr) 99 return 1; 100 return 0; 101 } 102 103 static void 104 dz_vsbus_attach(parent, self, aux) 105 struct device *parent, *self; 106 void *aux; 107 { 108 struct dz_softc *sc = (void *)self; 109 110 sc->sc_dr.dr_csr = (void *)(dz_regs + 0); 111 sc->sc_dr.dr_rbuf = (void *)(dz_regs + 4); 112 sc->sc_dr.dr_dtr = (void *)(dz_regs + 9); 113 sc->sc_dr.dr_break = (void *)(dz_regs + 13); 114 sc->sc_dr.dr_tbuf = (void *)(dz_regs + 12); 115 sc->sc_dr.dr_tcr = (void *)(dz_regs + 8); 116 sc->sc_dr.dr_dcd = (void *)(dz_regs + 13); 117 sc->sc_dr.dr_ring = (void *)(dz_regs + 13); 118 119 sc->sc_type = DZ_DZV; 120 121 sc->sc_txon = txon; 122 sc->sc_rxon = rxon; 123 sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ 124 vsbus_intr_attach(inr_sr, dzrint, 0); 125 vsbus_intr_attach(inr_st, dzxint, 0); 126 printf(": DC367"); 127 128 dzattach(sc); 129 130 if ((vax_confdata & 0x80) == 0) /* workstation, have lkc */ 131 config_found(self, 0, dz_print); 132 } 133 134 /*----------------------------------------------------------------------*/ 135 136 #define REG(name) short name; short X##name##X; 137 static volatile struct {/* base address of DZ-controller: 0x200A0000 */ 138 REG(csr); /* 00 Csr: control/status register */ 139 REG(rbuf); /* 04 Rbuf/Lpr: receive buffer/line param reg. */ 140 REG(tcr); /* 08 Tcr: transmit console register */ 141 REG(tdr); /* 0C Msr/Tdr: modem status reg/transmit data reg */ 142 REG(lpr0); /* 10 Lpr0: */ 143 REG(lpr1); /* 14 Lpr0: */ 144 REG(lpr2); /* 18 Lpr0: */ 145 REG(lpr3); /* 1C Lpr0: */ 146 } *dz = (void*)0x200A0000; 147 #undef REG 148 149 cons_decl(dz); 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 u_char mask; 159 160 mask = vs_cpu->vc_intmsk; /* save old state */ 161 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 162 163 do { 164 while ((dz->csr & 0x80) == 0) 165 ; /* Wait for char */ 166 rbuf = dz->rbuf; 167 if (((rbuf >> 8) & 3) != mino) 168 continue; 169 c = rbuf & 0x7f; 170 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 171 172 if (c == 13) 173 c = 10; 174 175 vs_cpu->vc_intclr = 0x80; /* clear te interrupt request */ 176 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 177 178 return (c); 179 } 180 181 #define DZMAJOR 1 182 183 void 184 dzcnprobe(cndev) 185 struct consdev *cndev; 186 { 187 188 switch (vax_boardtype) { 189 case VAX_BTYP_410: 190 case VAX_BTYP_420: 191 case VAX_BTYP_43: 192 case VAX_BTYP_46: 193 cndev->cn_dev = makedev(DZMAJOR, 3); 194 cndev->cn_pri = CN_NORMAL; 195 break; 196 197 default: 198 cndev->cn_pri = CN_DEAD; 199 break; 200 } 201 202 return; 203 } 204 205 void 206 dzcninit(cndev) 207 struct consdev *cndev; 208 { 209 dz = (void*)dz_regs; 210 211 dz->csr = 0; /* Disable scanning until initting is done */ 212 dz->tcr = 8; /* Turn off all but line 3's xmitter */ 213 dz->csr = 0x20; /* Turn scanning back on */ 214 } 215 216 217 void 218 dzcnputc(dev,ch) 219 dev_t dev; 220 int ch; 221 { 222 int timeout = 1<<15; /* don't hang the machine! */ 223 int mino = minor(dev); 224 u_short tcr; 225 u_char mask; 226 227 if (mfpr(PR_MAPEN) == 0) 228 return; 229 230 mask = vs_cpu->vc_intmsk; /* save old state */ 231 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 232 tcr = dz->tcr; /* remember which lines to scan */ 233 dz->tcr = (1 << mino); 234 235 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 236 if (--timeout < 0) 237 break; 238 dz->tdr = ch; /* Put the character */ 239 240 dz->tcr = tcr; 241 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 242 } 243 244 void 245 dzcnpollc(dev, pollflag) 246 dev_t dev; 247 int pollflag; 248 { 249 } 250 251 #if NLKC 252 cons_decl(lkc); 253 254 void 255 lkccninit(cndev) 256 struct consdev *cndev; 257 { 258 dz = (void*)dz_regs; 259 260 dz->csr = 0; /* Disable scanning until initting is done */ 261 dz->tcr = 1; /* Turn off all but line 0's xmitter */ 262 dz->rbuf = 0x1c18; /* XXX */ 263 dz->csr = 0x20; /* Turn scanning back on */ 264 } 265 266 int 267 lkccngetc(dev) 268 dev_t dev; 269 { 270 int lkc_decode(int); 271 int c; 272 u_char mask; 273 274 mask = vs_cpu->vc_intmsk; /* save old state */ 275 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 276 277 loop: 278 while ((dz->csr & 0x80) == 0) 279 ; /* Wait for char */ 280 281 c = lkc_decode(dz->rbuf & 255); 282 if (c < 1) 283 goto loop; 284 285 vs_cpu->vc_intclr = 0x80; /* clear te interrupt request */ 286 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 287 288 return (c); 289 } 290 #endif 291
Indexes created Tue Sep 30 11:09:46 GMT 2025