pckbc_pnpbios.c revision 1.4
1 /* $NetBSD: pckbc_pnpbios.c,v 1.4 2002/01/04 17:11:55 ws Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * PNPBIOS attachment for the PC Keyboard Controller driver. 41 * 42 * This is a little wonky. The keyboard controller actually 43 * has 2 PNPBIOS nodes: one for the controller and the keyboard 44 * interrupt, and one for the aux port (mouse) interrupt. 45 * 46 * For this reason, we actually attach *two* instances of this 47 * driver. After both of them have been found, then we attach 48 * sub-devices. 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: pckbc_pnpbios.c,v 1.4 2002/01/04 17:11:55 ws Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/proc.h> 58 #include <sys/device.h> 59 #include <sys/malloc.h> 60 #include <sys/errno.h> 61 #include <sys/queue.h> 62 #include <sys/lock.h> 63 64 #include <machine/bus.h> 65 66 #include <dev/isa/isareg.h> 67 #include <dev/isa/isavar.h> 68 69 #include <dev/ic/i8042reg.h> 70 #include <dev/ic/pckbcvar.h> 71 72 #include <i386/pnpbios/pnpbiosvar.h> 73 74 int pckbc_pnpbios_match(struct device *, struct cfdata *, void *); 75 void pckbc_pnpbios_attach(struct device *, struct device *, void *); 76 77 struct pckbc_pnpbios_softc { 78 struct pckbc_softc sc_pckbc; 79 80 int sc_irq; 81 int sc_ist; 82 pckbc_slot_t sc_slot; 83 }; 84 85 /* Save first port: */ 86 static struct pckbc_pnpbios_softc *first; 87 88 extern struct cfdriver pckbc_cd; 89 90 struct cfattach pckbc_pnpbios_ca = { 91 sizeof(struct pckbc_pnpbios_softc), pckbc_pnpbios_match, 92 pckbc_pnpbios_attach, 93 }; 94 95 void pckbc_pnpbios_intr_establish(struct pckbc_softc *, pckbc_slot_t); 96 97 int 98 pckbc_pnpbios_match(struct device *parent, 99 struct cfdata *match, 100 void *aux) 101 { 102 struct pnpbiosdev_attach_args *aa = aux; 103 104 if (strcmp(aa->idstr, "PNP0303") == 0 || 105 strcmp(aa->idstr, "PNP0320") == 0) /* Japanese 106 */ 106 return (1); /* plus more? */ 107 if (strcmp(aa->idstr, "PNP0F13") == 0) 108 return (1); 109 110 return (0); 111 } 112 113 void 114 pckbc_pnpbios_attach(struct device *parent, 115 struct device *self, 116 void *aux) 117 { 118 struct pckbc_pnpbios_softc *psc = (void *) self; 119 struct pckbc_softc *sc = &psc->sc_pckbc; 120 struct pckbc_internal *t; 121 struct pnpbiosdev_attach_args *aa = aux; 122 bus_space_tag_t iot; 123 bus_space_handle_t ioh_d, ioh_c; 124 pckbc_slot_t peer; 125 int iobase; 126 127 if (strncmp(aa->idstr, "PNP03", 5) == 0) { 128 psc->sc_slot = PCKBC_KBD_SLOT; 129 peer = PCKBC_AUX_SLOT; 130 } else if (strcmp(aa->idstr, "PNP0F13") == 0) { 131 psc->sc_slot = PCKBC_AUX_SLOT; 132 peer = PCKBC_KBD_SLOT; 133 } else { 134 printf(": unknown port!\n"); 135 panic("pckbc_pnpbios_attach: impossible"); 136 } 137 138 printf(": %s port\n", pckbc_slot_names[psc->sc_slot]); 139 140 if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &psc->sc_irq, 141 &psc->sc_ist) != 0) { 142 printf("%s: unable to get IRQ number or type\n", 143 sc->sc_dv.dv_xname); 144 return; 145 } 146 147 if (!first) 148 first = psc; 149 150 if (!first->sc_pckbc.id) { 151 152 if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) 153 return; 154 155 if (pckbc_is_console(iot, iobase)) { 156 t = &pckbc_consdata; 157 ioh_d = t->t_ioh_d; 158 ioh_c = t->t_ioh_c; 159 pckbc_console_attached = 1; 160 /* t->t_cmdbyte was initialized by cnattach */ 161 } else { 162 if (pnpbios_io_map(aa->pbt, aa->resc, 0, 163 &iot, &ioh_d) || 164 pnpbios_io_map(aa->pbt, aa->resc, 1, 165 &iot, &ioh_c)) 166 panic("pckbc_pnpbios_attach: couldn't map"); 167 168 t = malloc(sizeof(struct pckbc_internal), 169 M_DEVBUF, M_WAITOK); 170 memset(t, 0, sizeof(*t)); 171 t->t_iot = iot; 172 t->t_ioh_d = ioh_d; 173 t->t_ioh_c = ioh_c; 174 t->t_addr = iobase; 175 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 176 callout_init(&t->t_cleanup); 177 } 178 179 t->t_sc = &first->sc_pckbc; 180 first->sc_pckbc.id = t; 181 182 first->sc_pckbc.intr_establish = pckbc_pnpbios_intr_establish; 183 config_defer(&first->sc_pckbc.sc_dv, 184 (void(*)(struct device *))pckbc_attach); 185 } 186 } 187 188 void 189 pckbc_pnpbios_intr_establish(struct pckbc_softc *sc, 190 pckbc_slot_t slot) 191 { 192 struct pckbc_pnpbios_softc *psc; 193 void *rv = NULL; 194 int irq, ist; 195 int i; 196 197 /* 198 * Note we're always called with sc == first. 199 */ 200 for (i = 0; i < pckbc_cd.cd_ndevs; i++) { 201 psc = pckbc_cd.cd_devs[i]; 202 if (psc && psc->sc_slot == slot) { 203 irq = psc->sc_irq; 204 ist = psc->sc_ist; 205 break; 206 } 207 } 208 if (i < pckbc_cd.cd_ndevs) 209 rv = isa_intr_establish(0/*XXX*/, irq, ist, IPL_TTY, pckbcintr, sc); 210 if (rv == NULL) { 211 printf("%s: unable to establish interrupt for %s slot\n", 212 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 213 } else { 214 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 215 irq, pckbc_slot_names[slot]); 216 } 217 } 218
Indexes created Wed Oct 01 15:09:59 GMT 2025