pckbc_pnpbios.c revision 1.10
1 /* $NetBSD: pckbc_pnpbios.c,v 1.10 2006/11/16 01:32:39 christos 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 1.10 2006/11/16 01:32:39 christos 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 isa_chipset_tag_t sc_ic; 81 int sc_irq; 82 int sc_ist; 83 pckbc_slot_t sc_slot; 84 }; 85 86 /* Save first port: */ 87 static struct pckbc_pnpbios_softc *first; 88 89 extern struct cfdriver pckbc_cd; 90 91 CFATTACH_DECL(pckbc_pnpbios, sizeof(struct pckbc_pnpbios_softc), 92 pckbc_pnpbios_match, pckbc_pnpbios_attach, NULL, NULL); 93 94 void pckbc_pnpbios_intr_establish(struct pckbc_softc *, pckbc_slot_t); 95 96 int 97 pckbc_pnpbios_match(struct device *parent, 98 struct cfdata *match, void *aux) 99 { 100 struct pnpbiosdev_attach_args *aa = aux; 101 102 if (strcmp(aa->idstr, "PNP0303") == 0 || 103 strcmp(aa->idstr, "PNP0320") == 0) /* Japanese 106 */ 104 return (1); /* plus more? */ 105 if (strcmp(aa->idstr, "PNP0F13") == 0) 106 return (1); 107 108 return (0); 109 } 110 111 void 112 pckbc_pnpbios_attach(struct device *parent, struct device *self, 113 void *aux) 114 { 115 struct pckbc_pnpbios_softc *psc = (void *) self; 116 struct pckbc_softc *sc = &psc->sc_pckbc; 117 struct pckbc_internal *t; 118 struct pnpbiosdev_attach_args *aa = aux; 119 bus_space_tag_t iot; 120 bus_space_handle_t ioh_d, ioh_c; 121 pckbc_slot_t peer; 122 int iobase; 123 124 if (strncmp(aa->idstr, "PNP03", 5) == 0) { 125 psc->sc_slot = PCKBC_KBD_SLOT; 126 peer = PCKBC_AUX_SLOT; 127 } else if (strcmp(aa->idstr, "PNP0F13") == 0) { 128 psc->sc_slot = PCKBC_AUX_SLOT; 129 peer = PCKBC_KBD_SLOT; 130 } else { 131 printf(": unknown port!\n"); 132 panic("pckbc_pnpbios_attach: impossible"); 133 } 134 135 printf(": %s port\n", pckbc_slot_names[psc->sc_slot]); 136 137 if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &psc->sc_irq, 138 &psc->sc_ist) != 0) { 139 printf("%s: unable to get IRQ number or type\n", 140 sc->sc_dv.dv_xname); 141 return; 142 } 143 144 psc->sc_ic = aa->ic; 145 146 if (!first) 147 first = psc; 148 149 if (!first->sc_pckbc.id) { 150 151 if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) 152 return; 153 154 if (pckbc_is_console(iot, iobase)) { 155 t = &pckbc_consdata; 156 ioh_d = t->t_ioh_d; 157 ioh_c = t->t_ioh_c; 158 pckbc_console_attached = 1; 159 /* t->t_cmdbyte was initialized by cnattach */ 160 } else { 161 if (pnpbios_io_map(aa->pbt, aa->resc, 0, 162 &iot, &ioh_d) || 163 pnpbios_io_map(aa->pbt, aa->resc, 1, 164 &iot, &ioh_c)) 165 panic("pckbc_pnpbios_attach: couldn't map"); 166 167 t = malloc(sizeof(struct pckbc_internal), 168 M_DEVBUF, M_WAITOK); 169 memset(t, 0, sizeof(*t)); 170 t->t_iot = iot; 171 t->t_ioh_d = ioh_d; 172 t->t_ioh_c = ioh_c; 173 t->t_addr = iobase; 174 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 175 callout_init(&t->t_cleanup); 176 } 177 178 t->t_sc = &first->sc_pckbc; 179 first->sc_pckbc.id = t; 180 181 first->sc_pckbc.intr_establish = pckbc_pnpbios_intr_establish; 182 config_defer(&first->sc_pckbc.sc_dv, 183 (void(*)(struct device *))pckbc_attach); 184 } 185 } 186 187 void 188 pckbc_pnpbios_intr_establish(struct pckbc_softc *sc, 189 pckbc_slot_t slot) 190 { 191 struct pckbc_pnpbios_softc *psc; 192 isa_chipset_tag_t ic = NULL; 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 ic = psc->sc_ic; 206 break; 207 } 208 } 209 if (i < pckbc_cd.cd_ndevs) 210 rv = isa_intr_establish(ic, irq, ist, IPL_TTY, pckbcintr, sc); 211 if (rv == NULL) { 212 printf("%s: unable to establish interrupt for %s slot\n", 213 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 214 } else { 215 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 216 irq, pckbc_slot_names[slot]); 217 } 218 } 219
Indexes created Wed Oct 01 18:09:54 GMT 2025