pckbc_js.c revision 1.14.8.1
1 /* $NetBSD: pckbc_js.c,v 1.14.8.1 2007/12/09 19:36:16 jmcneill 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 1.14.8.1 2007/12/09 19:36:16 jmcneill 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 #include <sys/bus.h> 39 #include <sys/intr.h> 40 41 #include <machine/autoconf.h> 42 43 #include <dev/ic/i8042reg.h> 44 #include <dev/ic/pckbcvar.h> 45 #include <dev/pckbport/pckbportvar.h> 46 47 #include <dev/ebus/ebusreg.h> 48 #include <dev/ebus/ebusvar.h> 49 50 struct pckbc_js_softc { 51 struct pckbc_softc jsc_pckbc; /* real "pckbc" softc */ 52 53 /* kbd and mouse share interrupt in both mr.coffee and krups */ 54 uint32_t jsc_intr; 55 int jsc_establised; 56 void *jsc_int_cookie; 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 *, pckbport_slot_t); 69 static int jsc_pckbdintr(void *); 70 71 /* Mr.Coffee */ 72 CFATTACH_DECL(pckbc_obio, sizeof(struct pckbc_js_softc), 73 pckbc_obio_match, pckbc_obio_attach, NULL, NULL); 74 75 /* ms-IIep */ 76 CFATTACH_DECL(pckbc_ebus, sizeof(struct pckbc_js_softc), 77 pckbc_ebus_match, pckbc_ebus_attach, NULL, NULL); 78 79 #define PCKBC_PROM_DEVICE_NAME "8042" 80 81 static int 82 pckbc_obio_match(struct device *parent, struct cfdata *cf, void *aux) 83 { 84 union obio_attach_args *uoba = aux; 85 struct sbus_attach_args *sa = &uoba->uoba_sbus; 86 87 return (strcmp(sa->sa_name, PCKBC_PROM_DEVICE_NAME) == 0); 88 } 89 90 static int 91 pckbc_ebus_match(struct device *parent, struct cfdata *cf, void *aux) 92 { 93 struct ebus_attach_args *ea = aux; 94 95 return (strcmp(ea->ea_name, PCKBC_PROM_DEVICE_NAME) == 0); 96 } 97 98 99 static void 100 pckbc_obio_attach(struct device *parent, struct device *self, void *aux) 101 { 102 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self; 103 union obio_attach_args *uoba = aux; 104 struct sbus_attach_args *sa = &uoba->uoba_sbus; 105 bus_space_tag_t iot; 106 bus_addr_t ioaddr; 107 int intr, isconsole; 108 109 iot = sa->sa_bustag; 110 ioaddr = BUS_ADDR(sa->sa_slot, sa->sa_offset); 111 intr = sa->sa_nintr ? sa->sa_pri : /* level */ 13; 112 113 /* 114 * TODO: 115 * . on OFW machines stdin is keyboard node, not 8042 node 116 * . on OBP machines 8042 node is faked by boot's prompatch 117 * and PROM's stdin points to zs keyboard (add prom patch?) 118 * . we probably want the stdout node to control whether 119 * console goes to serial 120 */ 121 isconsole = 1; 122 123 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole); 124 } 125 126 static void 127 pckbc_ebus_attach(struct device *parent, struct device *self, void *aux) 128 { 129 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self; 130 struct ebus_attach_args *ea = aux; 131 bus_space_tag_t iot; 132 bus_addr_t ioaddr; 133 int intr; 134 int stdin_node, node; 135 int isconsole; 136 137 iot = ea->ea_bustag; 138 ioaddr = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]); 139 intr = ea->ea_nintr ? ea->ea_intr[0] : /* line */ 0; 140 141 /* search children of "8042" node for stdin (keyboard) */ 142 stdin_node = prom_instance_to_package(prom_stdin()); 143 isconsole = 0; 144 145 for (node = prom_firstchild(ea->ea_node); 146 node != 0; node = prom_nextsibling(node)) 147 if (node == stdin_node) { 148 isconsole = 1; 149 break; 150 } 151 152 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole); 153 } 154 155 156 static void 157 pckbc_js_attach_common(struct pckbc_js_softc *jsc, 158 bus_space_tag_t iot, bus_addr_t ioaddr, int intr, 159 int isconsole) 160 { 161 struct pckbc_softc *sc = (struct pckbc_softc *)jsc; 162 struct pckbc_internal *t; 163 164 jsc->jsc_pckbc.intr_establish = pckbc_js_intr_establish; 165 jsc->jsc_intr = intr; 166 jsc->jsc_establised = 0; 167 168 if (isconsole) { 169 int status; 170 171 status = pckbc_cnattach(iot, ioaddr, KBCMDP, PCKBC_KBD_SLOT); 172 if (status == 0) 173 printf(": cnattach ok"); 174 else 175 printf(": cnattach %d", status); 176 } 177 178 if (pckbc_is_console(iot, ioaddr)) { 179 t = &pckbc_consdata; 180 pckbc_console_attached = 1; 181 } else { 182 bus_space_handle_t ioh_d, ioh_c; 183 184 if (bus_space_map(iot, ioaddr + KBDATAP, 1, 0, &ioh_d) != 0) { 185 printf(": unable to map data register\n"); 186 return; 187 } 188 189 if (bus_space_map(iot, ioaddr + KBCMDP, 1, 0, &ioh_c) != 0) { 190 bus_space_unmap(iot, ioh_d, 1); 191 printf(": unable to map cmd register\n"); 192 return; 193 } 194 195 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK); 196 memset(t, 0, sizeof(struct pckbc_internal)); 197 t->t_iot = iot; 198 t->t_ioh_d = ioh_d; 199 t->t_ioh_c = ioh_c; 200 t->t_addr = ioaddr; 201 t->t_cmdbyte = KC8_CPU; /* initial command: enable ports */ 202 callout_init(&t->t_cleanup, 0); 203 204 (void) pckbc_poll_data1(t, PCKBC_KBD_SLOT); /* flush */ 205 206 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) 207 printf(": unable to request self test"); 208 else { 209 int response; 210 211 response = pckbc_poll_data1(t, PCKBC_KBD_SLOT); 212 if (response == 0x55) 213 printf(": selftest ok"); 214 else 215 printf(": selftest failed (0x%02x)", response); 216 } 217 } 218 219 /* crosslink */ 220 t->t_sc = sc; 221 sc->id = t; 222 223 /* finish off the attach */ 224 printf("\n"); 225 pckbc_attach(sc); 226 } 227 228 229 /* 230 * Keyboard and mouse share the interrupt 231 * so don't install interrupt handler twice. 232 */ 233 static void 234 pckbc_js_intr_establish(struct pckbc_softc *sc, pckbport_slot_t slot) 235 { 236 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)sc; 237 void *res; 238 239 if (jsc->jsc_establised) { 240 #ifdef DEBUG 241 printf("%s: %s slot shares interrupt (already established)\n", 242 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 243 #endif 244 return; 245 } 246 247 /* 248 * We can not choose the devic class interruptlevel freely, 249 * so we debounce via a softinterrupt. 250 */ 251 jsc->jsc_int_cookie = softint_establish(SOFTINT_SERIAL, 252 pckbcintr_soft, &jsc->jsc_pckbc); 253 if (jsc->jsc_int_cookie == NULL) { 254 printf("%s: unable to establish %s soft interrupt\n", 255 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 256 return; 257 } 258 res = bus_intr_establish(sc->id->t_iot, jsc->jsc_intr, 259 IPL_SERIAL, jsc_pckbdintr, jsc); 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 static int 268 jsc_pckbdintr(void *vsc) 269 { 270 struct pckbc_js_softc *jsc = vsc; 271 272 softint_schedule(jsc->jsc_int_cookie); 273 pckbcintr_hard(&jsc->jsc_pckbc); 274 275 /* 276 * This interrupt is not shared on javastations, avoid "stray" 277 * warnings. XXX - why do "stray interrupt" warnings happen if 278 * we don't claim the interrupt always? 279 */ 280 return 1; 281 } 282 283 /* 284 * MD hook for use without MI wscons. 285 * Called by pckbc_cnattach(). 286 */ 287 int 288 pckbport_machdep_cnattach(pckbport_tag_t constag, pckbport_slot_t slot) 289 { 290 291 return (0); 292 } 293
Indexes created Tue Sep 30 11:09:46 GMT 2025