pckbc_js.c revision 1.7
1 /* $NetBSD: pckbc_js.c,v 1.7 2002/12/10 13:44:50 pk Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Valeriy E. Ushakov 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/device.h> 34 #include <sys/malloc.h> 35 36 #include <machine/autoconf.h> 37 #include <machine/bus.h> 38 #include <machine/intr.h> 39 40 #include <dev/ic/i8042reg.h> 41 #include <dev/ic/pckbcvar.h> 42 #include <dev/pckbc/pckbdvar.h> 43 44 #include <dev/ebus/ebusreg.h> 45 #include <dev/ebus/ebusvar.h> 46 47 48 struct pckbc_js_softc { 49 struct pckbc_softc jsc_pckbc; /* real "pckbc" softc */ 50 51 /* kbd and mouse share interrupt in both mr.coffee and krups */ 52 u_int32_t jsc_intr; 53 int jsc_establised; 54 }; 55 56 57 static int pckbc_obio_match(struct device *, struct cfdata *, void *); 58 static void pckbc_obio_attach(struct device *, struct device *, void *); 59 60 static int pckbc_ebus_match(struct device *, struct cfdata *, void *); 61 static void pckbc_ebus_attach(struct device *, struct device *, void *); 62 63 static void pckbc_js_attach_common( struct pckbc_js_softc *, 64 bus_space_tag_t, bus_addr_t, int, int); 65 static void pckbc_js_intr_establish(struct pckbc_softc *, pckbc_slot_t); 66 67 /* Mr.Coffee */ 68 CFATTACH_DECL(pckbc_obio, sizeof(struct pckbc_js_softc), 69 pckbc_obio_match, pckbc_obio_attach, NULL, NULL); 70 71 /* ms-IIep */ 72 CFATTACH_DECL(pckbc_ebus, sizeof(struct pckbc_js_softc), 73 pckbc_ebus_match, pckbc_ebus_attach, NULL, NULL); 74 75 #define PCKBC_PROM_DEVICE_NAME "8042" 76 77 static int 78 pckbc_obio_match(parent, cf, aux) 79 struct device *parent; 80 struct cfdata *cf; 81 void *aux; 82 { 83 union obio_attach_args *uoba = aux; 84 struct sbus_attach_args *sa = &uoba->uoba_sbus; 85 86 return (strcmp(sa->sa_name, PCKBC_PROM_DEVICE_NAME) == 0); 87 } 88 89 static int 90 pckbc_ebus_match(parent, cf, aux) 91 struct device *parent; 92 struct cfdata *cf; 93 void *aux; 94 { 95 struct ebus_attach_args *ea = aux; 96 97 return (strcmp(ea->ea_name, PCKBC_PROM_DEVICE_NAME) == 0); 98 } 99 100 101 static void 102 pckbc_obio_attach(parent, self, aux) 103 struct device *parent, *self; 104 void *aux; 105 { 106 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self; 107 union obio_attach_args *uoba = aux; 108 struct sbus_attach_args *sa = &uoba->uoba_sbus; 109 bus_space_tag_t iot; 110 bus_addr_t ioaddr; 111 int intr, isconsole; 112 113 iot = sa->sa_bustag; 114 ioaddr = BUS_ADDR(sa->sa_slot, sa->sa_offset); 115 intr = sa->sa_nintr ? sa->sa_pri : /* level */ 13; 116 117 /* 118 * TODO: 119 * . on OFW machines stdin is keyboard node, not 8042 node 120 * . on OBP machines 8042 node is faked by boot's prompatch 121 * and PROM's stdin points to zs keyboard (add prom patch?) 122 * . we probably want the stdout node to control whether 123 * console goes to serial 124 */ 125 isconsole = 1; 126 127 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole); 128 } 129 130 static void 131 pckbc_ebus_attach(parent, self, aux) 132 struct device *parent, *self; 133 void *aux; 134 { 135 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self; 136 struct ebus_attach_args *ea = aux; 137 bus_space_tag_t iot; 138 bus_addr_t ioaddr; 139 int intr; 140 int stdin_node, node; 141 int isconsole; 142 143 iot = ea->ea_bustag; 144 ioaddr = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]); 145 intr = ea->ea_nintr ? ea->ea_intr[0] : /* line */ 0; 146 147 /* search children of "8042" node for stdin (keyboard) */ 148 stdin_node = prom_instance_to_package(prom_stdin()); 149 isconsole = 0; 150 151 for (node = prom_firstchild(ea->ea_node); 152 node != 0; node = prom_nextsibling(node)) 153 if (node == stdin_node) { 154 isconsole = 1; 155 break; 156 } 157 158 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole); 159 } 160 161 162 static void 163 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole) 164 struct pckbc_js_softc *jsc; 165 bus_space_tag_t iot; 166 bus_addr_t ioaddr; 167 int intr; 168 int isconsole; 169 { 170 struct pckbc_softc *sc = (struct pckbc_softc *)jsc; 171 struct pckbc_internal *t; 172 173 jsc->jsc_pckbc.intr_establish = pckbc_js_intr_establish; 174 jsc->jsc_intr = intr; 175 jsc->jsc_establised = 0; 176 177 if (isconsole) { 178 int status; 179 180 status = pckbc_cnattach(iot, ioaddr, KBCMDP, PCKBC_KBD_SLOT); 181 if (status == 0) 182 printf(": cnattach ok"); 183 else 184 printf(": cnattach %d", status); 185 } 186 187 if (pckbc_is_console(iot, ioaddr)) { 188 t = &pckbc_consdata; 189 pckbc_console_attached = 1; 190 } else { 191 bus_space_handle_t ioh_d, ioh_c; 192 193 if (bus_space_map(iot, ioaddr + KBDATAP, 1, 0, &ioh_d) != 0) { 194 printf(": unable to map data register\n"); 195 return; 196 } 197 198 if (bus_space_map(iot, ioaddr + KBCMDP, 1, 0, &ioh_c) != 0) { 199 bus_space_unmap(iot, ioh_d, 1); 200 printf(": unable to map cmd register\n"); 201 return; 202 } 203 204 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK); 205 memset(t, 0, sizeof(struct pckbc_internal)); 206 t->t_iot = iot; 207 t->t_ioh_d = ioh_d; 208 t->t_ioh_c = ioh_c; 209 t->t_addr = ioaddr; 210 t->t_cmdbyte = KC8_CPU; /* initial command: enable ports */ 211 callout_init(&t->t_cleanup); 212 213 (void) pckbc_poll_data1(t, PCKBC_KBD_SLOT, 0); /* flush */ 214 215 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) 216 printf(": unable to request self test"); 217 else { 218 int response; 219 220 response = pckbc_poll_data1(t, PCKBC_KBD_SLOT, 0); 221 if (response == 0x55) 222 printf(": selftest ok"); 223 else 224 printf(": selftest failed (0x%02x)", response); 225 } 226 } 227 228 /* crosslink */ 229 t->t_sc = sc; 230 sc->id = t; 231 232 /* finish off the attach */ 233 printf("\n"); 234 pckbc_attach(sc); 235 } 236 237 238 /* 239 * Keyboard and mouse share the interrupt 240 * so don't install interrupt handler twice. 241 */ 242 static void 243 pckbc_js_intr_establish(sc, slot) 244 struct pckbc_softc *sc; 245 pckbc_slot_t slot; 246 { 247 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)sc; 248 void *res; 249 250 if (jsc->jsc_establised) { 251 #ifdef DEBUG 252 printf("%s: %s slot shares interrupt (already established)\n", 253 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 254 #endif 255 return; 256 } 257 258 res = bus_intr_establish(sc->id->t_iot, jsc->jsc_intr, 259 IPL_TTY, pckbcintr, sc); 260 if (res == NULL) 261 printf("%s: unable to establish %s slot interrupt\n", 262 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 263 else 264 jsc->jsc_establised = 1; 265 } 266 267 268 /* 269 * MD hook for use without MI wscons. 270 * Called by pckbc_cnattach(). 271 */ 272 int 273 pckbc_machdep_cnattach(constag, slot) 274 pckbc_tag_t constag; 275 pckbc_slot_t slot; 276 { 277 278 #if !defined(__HAVE_NWSCONS) && defined(MSIIEP) 279 /* we do use wscons on krups! */ 280 return (pckbd_cnattach(constag, slot)); 281 #else 282 return (0); 283 #endif 284 } 285
Indexes created Mon Sep 29 21:09:56 GMT 2025