pckbc_js.c revision 1.13
1 /* $NetBSD: pckbc_js.c,v 1.13 2005/11/16 01:39:27 uwe 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 1.13 2005/11/16 01:39:27 uwe 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/pckbport/pckbportvar.h> 46 47 #include <dev/ebus/ebusreg.h> 48 #include <dev/ebus/ebusvar.h> 49 50 #ifdef __GENERIC_SOFT_INTERRUPTS_ALL_LEVELS 51 #define IPL_JSCKBD IPL_TTY 52 #else 53 #define IPL_JSCKBD IPL_SOFTSERIAL 54 #endif 55 56 struct pckbc_js_softc { 57 struct pckbc_softc jsc_pckbc; /* real "pckbc" softc */ 58 59 /* kbd and mouse share interrupt in both mr.coffee and krups */ 60 uint32_t jsc_intr; 61 int jsc_establised; 62 void *jsc_int_cookie; 63 }; 64 65 66 static int pckbc_obio_match(struct device *, struct cfdata *, void *); 67 static void pckbc_obio_attach(struct device *, struct device *, void *); 68 69 static int pckbc_ebus_match(struct device *, struct cfdata *, void *); 70 static void pckbc_ebus_attach(struct device *, struct device *, void *); 71 72 static void pckbc_js_attach_common(struct pckbc_js_softc *, 73 bus_space_tag_t, bus_addr_t, int, int); 74 static void pckbc_js_intr_establish(struct pckbc_softc *, pckbport_slot_t); 75 static int jsc_pckbdintr(void *); 76 77 /* Mr.Coffee */ 78 CFATTACH_DECL(pckbc_obio, sizeof(struct pckbc_js_softc), 79 pckbc_obio_match, pckbc_obio_attach, NULL, NULL); 80 81 /* ms-IIep */ 82 CFATTACH_DECL(pckbc_ebus, sizeof(struct pckbc_js_softc), 83 pckbc_ebus_match, pckbc_ebus_attach, NULL, NULL); 84 85 #define PCKBC_PROM_DEVICE_NAME "8042" 86 87 static int 88 pckbc_obio_match(struct device *parent, struct cfdata *cf, void *aux) 89 { 90 union obio_attach_args *uoba = aux; 91 struct sbus_attach_args *sa = &uoba->uoba_sbus; 92 93 return (strcmp(sa->sa_name, PCKBC_PROM_DEVICE_NAME) == 0); 94 } 95 96 static int 97 pckbc_ebus_match(struct device *parent, struct cfdata *cf, void *aux) 98 { 99 struct ebus_attach_args *ea = aux; 100 101 return (strcmp(ea->ea_name, PCKBC_PROM_DEVICE_NAME) == 0); 102 } 103 104 105 static void 106 pckbc_obio_attach(struct device *parent, struct device *self, void *aux) 107 { 108 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self; 109 union obio_attach_args *uoba = aux; 110 struct sbus_attach_args *sa = &uoba->uoba_sbus; 111 bus_space_tag_t iot; 112 bus_addr_t ioaddr; 113 int intr, isconsole; 114 115 iot = sa->sa_bustag; 116 ioaddr = BUS_ADDR(sa->sa_slot, sa->sa_offset); 117 intr = sa->sa_nintr ? sa->sa_pri : /* level */ 13; 118 119 /* 120 * TODO: 121 * . on OFW machines stdin is keyboard node, not 8042 node 122 * . on OBP machines 8042 node is faked by boot's prompatch 123 * and PROM's stdin points to zs keyboard (add prom patch?) 124 * . we probably want the stdout node to control whether 125 * console goes to serial 126 */ 127 isconsole = 1; 128 129 pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole); 130 } 131 132 static void 133 pckbc_ebus_attach(struct device *parent, struct device *self, 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(struct pckbc_js_softc *jsc, 164 bus_space_tag_t iot, bus_addr_t ioaddr, int intr, 165 int isconsole) 166 { 167 struct pckbc_softc *sc = (struct pckbc_softc *)jsc; 168 struct pckbc_internal *t; 169 170 jsc->jsc_pckbc.intr_establish = pckbc_js_intr_establish; 171 jsc->jsc_intr = intr; 172 jsc->jsc_establised = 0; 173 174 if (isconsole) { 175 int status; 176 177 status = pckbc_cnattach(iot, ioaddr, KBCMDP, PCKBC_KBD_SLOT); 178 if (status == 0) 179 printf(": cnattach ok"); 180 else 181 printf(": cnattach %d", status); 182 } 183 184 if (pckbc_is_console(iot, ioaddr)) { 185 t = &pckbc_consdata; 186 pckbc_console_attached = 1; 187 } else { 188 bus_space_handle_t ioh_d, ioh_c; 189 190 if (bus_space_map(iot, ioaddr + KBDATAP, 1, 0, &ioh_d) != 0) { 191 printf(": unable to map data register\n"); 192 return; 193 } 194 195 if (bus_space_map(iot, ioaddr + KBCMDP, 1, 0, &ioh_c) != 0) { 196 bus_space_unmap(iot, ioh_d, 1); 197 printf(": unable to map cmd register\n"); 198 return; 199 } 200 201 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK); 202 memset(t, 0, sizeof(struct pckbc_internal)); 203 t->t_iot = iot; 204 t->t_ioh_d = ioh_d; 205 t->t_ioh_c = ioh_c; 206 t->t_addr = ioaddr; 207 t->t_cmdbyte = KC8_CPU; /* initial command: enable ports */ 208 callout_init(&t->t_cleanup); 209 210 (void) pckbc_poll_data1(t, PCKBC_KBD_SLOT); /* flush */ 211 212 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) 213 printf(": unable to request self test"); 214 else { 215 int response; 216 217 response = pckbc_poll_data1(t, PCKBC_KBD_SLOT); 218 if (response == 0x55) 219 printf(": selftest ok"); 220 else 221 printf(": selftest failed (0x%02x)", response); 222 } 223 } 224 225 /* crosslink */ 226 t->t_sc = sc; 227 sc->id = t; 228 229 /* finish off the attach */ 230 printf("\n"); 231 pckbc_attach(sc); 232 } 233 234 235 /* 236 * Keyboard and mouse share the interrupt 237 * so don't install interrupt handler twice. 238 */ 239 static void 240 pckbc_js_intr_establish(struct pckbc_softc *sc, pckbport_slot_t slot) 241 { 242 struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)sc; 243 void *res; 244 245 if (jsc->jsc_establised) { 246 #ifdef DEBUG 247 printf("%s: %s slot shares interrupt (already established)\n", 248 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 249 #endif 250 return; 251 } 252 253 /* 254 * We can not choose the devic class interruptlevel freely, 255 * so we debounce via a softinterrupt. 256 */ 257 jsc->jsc_int_cookie = softintr_establish(IPL_JSCKBD, 258 pckbcintr_soft, &jsc->jsc_pckbc); 259 if (jsc->jsc_int_cookie == NULL) { 260 printf("%s: unable to establish %s soft interrupt\n", 261 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 262 return; 263 } 264 res = bus_intr_establish(sc->id->t_iot, jsc->jsc_intr, 265 IPL_SERIAL, jsc_pckbdintr, jsc); 266 if (res == NULL) 267 printf("%s: unable to establish %s slot interrupt\n", 268 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 269 else 270 jsc->jsc_establised = 1; 271 } 272 273 static int 274 jsc_pckbdintr(void *vsc) 275 { 276 struct pckbc_js_softc *jsc = vsc; 277 278 softintr_schedule(jsc->jsc_int_cookie); 279 pckbcintr_hard(&jsc->jsc_pckbc); 280 281 /* 282 * This interrupt is not shared on javastations, avoid "stray" 283 * warnings. XXX - why do "stray interrupt" warnings happen if 284 * we don't claim the interrupt always? 285 */ 286 return 1; 287 } 288 289 /* 290 * MD hook for use without MI wscons. 291 * Called by pckbc_cnattach(). 292 */ 293 int 294 pckbport_machdep_cnattach(pckbport_tag_t constag, pckbport_slot_t slot) 295 { 296 297 return (0); 298 } 299
Indexes created Mon Sep 29 21:09:56 GMT 2025