pckbc_js.c revision 1.8
1 /* $NetBSD: pckbc_js.c,v 1.8 2003/07/15 00:04:56 lukem 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/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: pckbc_js.c,v 1.8 2003/07/15 00:04:56 lukem Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/device.h> 37 #include <sys/malloc.h> 38 39 #include <machine/autoconf.h> 40 #include <machine/bus.h> 41 #include <machine/intr.h> 42 43 #include <dev/ic/i8042reg.h> 44 #include <dev/ic/pckbcvar.h> 45 #include <dev/pckbc/pckbdvar.h> 46 47 #include <dev/ebus/ebusreg.h> 48 #include <dev/ebus/ebusvar.h> 49 50 51 struct pckbc_js_softc { 52 struct pckbc_softc jsc_pckbc; /* real "pckbc" softc */ 53 54 /* kbd and mouse share interrupt in both mr.coffee and krups */ 55 u_int32_t jsc_intr; 56 int jsc_establised; 57 }; 58 59 60 static int pckbc_obio_match(struct device *, struct cfdata *, void *); 61 static void pckbc_obio_attach(struct device *, struct device *, void *); 62 63 static int pckbc_ebus_match(struct device *, struct cfdata *, void *); 64 static void pckbc_ebus_attach(struct device *, struct device *, void *); 65 66 static void pckbc_js_attach_common( struct pckbc_js_softc *, 67 bus_space_tag_t, bus_addr_t, int, int); 68 static void pckbc_js_intr_establish(struct pckbc_softc *, pckbc_slot_t); 69 70 /* Mr.Coffee */ 71 CFATTACH_DECL(pckbc_obio, sizeof(struct pckbc_js_softc), 72 pckbc_obio_match, pckbc_obio_attach, NULL, NULL); 73 74 /* ms-IIep */ 75 CFATTACH_DECL(pckbc_ebus, sizeof(struct pckbc_js_softc), 76 pckbc_ebus_match, pckbc_ebus_attach, NULL, NULL); 77 78 #define PCKBC_PROM_DEVICE_NAME "8042" 79 80 static int 81 pckbc_obio_match(parent, cf, aux) 82 struct device *parent; 83 struct cfdata *cf; 84 void *aux; 85 { 86 union obio_attach_args *uoba = aux; 87 struct sbus_attach_args *sa = &uoba->uoba_sbus; 88 89 return (strcmp(sa->sa_name, PCKBC_PROM_DEVICE_NAME) == 0); 90 } 91 92 static int 93 pckbc_ebus_match(parent, cf, aux) 94 struct device *parent; 95 struct cfdata *cf; 96 void *aux; 97 { 98 struct ebus_attach_args *ea = aux; 99 100 return (strcmp(ea->ea_name, PCKBC_PROM_DEVICE_NAME) == 0); 101 } 102 103 104 static void 105 pckbc_obio_attach(parent, self, aux) 106 struct device *parent, *self; 107 void *aux; 108 { 109 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self; 110 union obio_attach_args *uoba = aux; 111 struct sbus_attach_args *sa = &uoba->uoba_sbus; 112 bus_space_tag_t iot; 113 bus_addr_t ioaddr; 114 int intr, isconsole; 115 116 iot = sa->sa_bustag; 117 ioaddr = BUS_ADDR(sa->sa_slot, sa->sa_offset); 118 intr = sa->sa_nintr ? sa->sa_pri : /* level */ 13; 119 120 /* 121 * TODO: 122 * . on OFW machines stdin is keyboard node, not 8042 node 123 * . on OBP machines 8042 node is faked by boot's prompatch 124 * and PROM's stdin points to zs keyboard (add prom patch?) 125 * . we probably want the stdout node to control whether 126 * console goes to serial 127 */ 128 isconsole = 1; 129 130 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole); 131 } 132 133 static void 134 pckbc_ebus_attach(parent, self, aux) 135 struct device *parent, *self; 136 void *aux; 137 { 138 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self; 139 struct ebus_attach_args *ea = aux; 140 bus_space_tag_t iot; 141 bus_addr_t ioaddr; 142 int intr; 143 int stdin_node, node; 144 int isconsole; 145 146 iot = ea->ea_bustag; 147 ioaddr = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]); 148 intr = ea->ea_nintr ? ea->ea_intr[0] : /* line */ 0; 149 150 /* search children of "8042" node for stdin (keyboard) */ 151 stdin_node = prom_instance_to_package(prom_stdin()); 152 isconsole = 0; 153 154 for (node = prom_firstchild(ea->ea_node); 155 node != 0; node = prom_nextsibling(node)) 156 if (node == stdin_node) { 157 isconsole = 1; 158 break; 159 } 160 161 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole); 162 } 163 164 165 static void 166 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole) 167 struct pckbc_js_softc *jsc; 168 bus_space_tag_t iot; 169 bus_addr_t ioaddr; 170 int intr; 171 int isconsole; 172 { 173 struct pckbc_softc *sc = (struct pckbc_softc *)jsc; 174 struct pckbc_internal *t; 175 176 jsc->jsc_pckbc.intr_establish = pckbc_js_intr_establish; 177 jsc->jsc_intr = intr; 178 jsc->jsc_establised = 0; 179 180 if (isconsole) { 181 int status; 182 183 status = pckbc_cnattach(iot, ioaddr, KBCMDP, PCKBC_KBD_SLOT); 184 if (status == 0) 185 printf(": cnattach ok"); 186 else 187 printf(": cnattach %d", status); 188 } 189 190 if (pckbc_is_console(iot, ioaddr)) { 191 t = &pckbc_consdata; 192 pckbc_console_attached = 1; 193 } else { 194 bus_space_handle_t ioh_d, ioh_c; 195 196 if (bus_space_map(iot, ioaddr + KBDATAP, 1, 0, &ioh_d) != 0) { 197 printf(": unable to map data register\n"); 198 return; 199 } 200 201 if (bus_space_map(iot, ioaddr + KBCMDP, 1, 0, &ioh_c) != 0) { 202 bus_space_unmap(iot, ioh_d, 1); 203 printf(": unable to map cmd register\n"); 204 return; 205 } 206 207 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK); 208 memset(t, 0, sizeof(struct pckbc_internal)); 209 t->t_iot = iot; 210 t->t_ioh_d = ioh_d; 211 t->t_ioh_c = ioh_c; 212 t->t_addr = ioaddr; 213 t->t_cmdbyte = KC8_CPU; /* initial command: enable ports */ 214 callout_init(&t->t_cleanup); 215 216 (void) pckbc_poll_data1(t, PCKBC_KBD_SLOT, 0); /* flush */ 217 218 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) 219 printf(": unable to request self test"); 220 else { 221 int response; 222 223 response = pckbc_poll_data1(t, PCKBC_KBD_SLOT, 0); 224 if (response == 0x55) 225 printf(": selftest ok"); 226 else 227 printf(": selftest failed (0x%02x)", response); 228 } 229 } 230 231 /* crosslink */ 232 t->t_sc = sc; 233 sc->id = t; 234 235 /* finish off the attach */ 236 printf("\n"); 237 pckbc_attach(sc); 238 } 239 240 241 /* 242 * Keyboard and mouse share the interrupt 243 * so don't install interrupt handler twice. 244 */ 245 static void 246 pckbc_js_intr_establish(sc, slot) 247 struct pckbc_softc *sc; 248 pckbc_slot_t slot; 249 { 250 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)sc; 251 void *res; 252 253 if (jsc->jsc_establised) { 254 #ifdef DEBUG 255 printf("%s: %s slot shares interrupt (already established)\n", 256 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 257 #endif 258 return; 259 } 260 261 res = bus_intr_establish(sc->id->t_iot, jsc->jsc_intr, 262 IPL_TTY, pckbcintr, sc); 263 if (res == NULL) 264 printf("%s: unable to establish %s slot interrupt\n", 265 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 266 else 267 jsc->jsc_establised = 1; 268 } 269 270 271 /* 272 * MD hook for use without MI wscons. 273 * Called by pckbc_cnattach(). 274 */ 275 int 276 pckbc_machdep_cnattach(constag, slot) 277 pckbc_tag_t constag; 278 pckbc_slot_t slot; 279 { 280 281 #if !defined(__HAVE_NWSCONS) && defined(MSIIEP) 282 /* we do use wscons on krups! */ 283 return (pckbd_cnattach(constag, slot)); 284 #else 285 return (0); 286 #endif 287 } 288
Indexes created Mon Sep 29 21:09:56 GMT 2025