dz_vsbus.c revision 1.5
1 /* $NetBSD: dz_vsbus.c,v 1.5 1998/06/07 20:19:12 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; 156 u_char mask; 157 158 mask = vs_cpu->vc_intmsk; /* save old state */ 159 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 160 161 do { 162 while ((dz->csr & 0x80) == 0) 163 ; /* Wait for char */ 164 c = dz->rbuf & 0x7f; 165 } while (c == 17 || c == 19); /* ignore XON/XOFF */ 166 167 if (c == 13) 168 c = 10; 169 170 vs_cpu->vc_intclr = 0x80; /* clear te interrupt request */ 171 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 172 173 return (c); 174 } 175 176 #define DZMAJOR 1 177 178 void 179 dzcnprobe(cndev) 180 struct consdev *cndev; 181 { 182 183 switch (vax_boardtype) { 184 case VAX_BTYP_410: 185 case VAX_BTYP_420: 186 case VAX_BTYP_43: 187 cndev->cn_dev = makedev(DZMAJOR, 3); 188 cndev->cn_pri = CN_NORMAL; 189 break; 190 191 default: 192 cndev->cn_pri = CN_DEAD; 193 break; 194 } 195 196 return; 197 } 198 199 void 200 dzcninit(cndev) 201 struct consdev *cndev; 202 { 203 dz = (void*)dz_regs; 204 205 dz->csr = 0; /* Disable scanning until initting is done */ 206 dz->tcr = 8; /* Turn off all but line 3's xmitter */ 207 dz->csr = 0x20; /* Turn scanning back on */ 208 } 209 210 211 void 212 dzcnputc(dev,ch) 213 dev_t dev; 214 int ch; 215 { 216 int timeout = 1<<15; /* don't hang the machine! */ 217 u_short tcr; 218 u_char mask; 219 220 if (mfpr(PR_MAPEN) == 0) 221 return; 222 223 mask = vs_cpu->vc_intmsk; /* save old state */ 224 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 225 tcr = dz->tcr; /* remember which lines to scan */ 226 dz->tcr = 8; /* XXX */ 227 228 while ((dz->csr & 0x8000) == 0) /* Wait until ready */ 229 if (--timeout < 0) 230 break; 231 dz->tdr = ch; /* Put the character */ 232 233 dz->tcr = tcr; 234 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 235 } 236 237 void 238 dzcnpollc(dev, pollflag) 239 dev_t dev; 240 int pollflag; 241 { 242 } 243 244 #if NLKC 245 cons_decl(lkc); 246 247 void 248 lkccninit(cndev) 249 struct consdev *cndev; 250 { 251 dz = (void*)dz_regs; 252 253 dz->csr = 0; /* Disable scanning until initting is done */ 254 dz->tcr = 1; /* Turn off all but line 0's xmitter */ 255 dz->rbuf = 0x1c18; /* XXX */ 256 dz->csr = 0x20; /* Turn scanning back on */ 257 } 258 259 int 260 lkccngetc(dev) 261 dev_t dev; 262 { 263 int lkc_decode(int); 264 int c; 265 u_char mask; 266 267 mask = vs_cpu->vc_intmsk; /* save old state */ 268 vs_cpu->vc_intmsk = 0; /* disable all interrupts */ 269 270 loop: 271 while ((dz->csr & 0x80) == 0) 272 ; /* Wait for char */ 273 274 c = lkc_decode(dz->rbuf & 255); 275 if (c < 1) 276 goto loop; 277 278 vs_cpu->vc_intclr = 0x80; /* clear te interrupt request */ 279 vs_cpu->vc_intmsk = mask; /* restore interrupt mask */ 280 281 return (c); 282 } 283 #endif 284
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