1 /* $NetBSD: pckbc_pnpbios.c,v 1.18 2014/03/23 02:57:58 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * PNPBIOS attachment for the PC Keyboard Controller driver. 34 * 35 * This is a little wonky. The keyboard controller actually 36 * has 2 PNPBIOS nodes: one for the controller and the keyboard 37 * interrupt, and one for the aux port (mouse) interrupt. 38 * 39 * For this reason, we actually attach *two* instances of this 40 * driver. After both of them have been found, then we attach 41 * sub-devices. 42 */ 43 44 #include <sys/cdefs.h> 45 __KERNEL_RCSID(0, "$NetBSD: pckbc_pnpbios.c,v 1.18 2014/03/23 02:57:58 christos Exp $"); 46 47 #include <sys/param.h> 48 #include <sys/systm.h> 49 #include <sys/kernel.h> 50 #include <sys/proc.h> 51 #include <sys/device.h> 52 #include <sys/malloc.h> 53 #include <sys/errno.h> 54 #include <sys/queue.h> 55 #include <sys/bus.h> 56 57 #include <dev/isa/isareg.h> 58 #include <dev/isa/isavar.h> 59 60 #include <dev/ic/i8042reg.h> 61 #include <dev/ic/pckbcvar.h> 62 63 #include <i386/pnpbios/pnpbiosvar.h> 64 65 int pckbc_pnpbios_match(device_t, cfdata_t, void *); 66 void pckbc_pnpbios_attach(device_t, device_t, void *); 67 68 struct pckbc_pnpbios_softc { 69 struct pckbc_softc sc_pckbc; 70 71 isa_chipset_tag_t sc_ic; 72 int sc_irq; 73 int sc_ist; 74 pckbc_slot_t sc_slot; 75 }; 76 77 /* Save first port: */ 78 static struct pckbc_pnpbios_softc *first; 79 80 extern struct cfdriver pckbc_cd; 81 82 CFATTACH_DECL_NEW(pckbc_pnpbios, sizeof(struct pckbc_pnpbios_softc), 83 pckbc_pnpbios_match, pckbc_pnpbios_attach, NULL, NULL); 84 85 void pckbc_pnpbios_intr_establish(struct pckbc_softc *, pckbc_slot_t); 86 static void pckbc_pnpbios_finish_attach(device_t); 87 88 int 89 pckbc_pnpbios_match(device_t parent, cfdata_t match, void *aux) 90 { 91 struct pnpbiosdev_attach_args *aa = aux; 92 93 if (strcmp(aa->idstr, "PNP0303") == 0 || 94 strcmp(aa->idstr, "PNP0320") == 0) /* Japanese 106 */ 95 return (1); /* plus more? */ 96 if (strcmp(aa->idstr, "PNP0F13") == 0) 97 return (1); 98 99 return (0); 100 } 101 102 void 103 pckbc_pnpbios_attach(device_t parent, device_t self, void *aux) 104 { 105 struct pckbc_pnpbios_softc *psc = device_private(self); 106 struct pckbc_softc *sc = &psc->sc_pckbc; 107 struct pckbc_internal *t; 108 struct pnpbiosdev_attach_args *aa = aux; 109 bus_space_tag_t iot; 110 bus_space_handle_t ioh_d, ioh_c; 111 int iobase; 112 113 sc->sc_dv = self; 114 if (strncmp(aa->idstr, "PNP03", 5) == 0) { 115 psc->sc_slot = PCKBC_KBD_SLOT; 116 } else if (strcmp(aa->idstr, "PNP0F13") == 0) { 117 psc->sc_slot = PCKBC_AUX_SLOT; 118 } else { 119 aprint_error(": unknown port!\n"); 120 panic("pckbc_pnpbios_attach: impossible"); 121 } 122 123 aprint_normal(": %s port\n", pckbc_slot_names[psc->sc_slot]); 124 125 if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &psc->sc_irq, 126 &psc->sc_ist) != 0) { 127 aprint_error_dev(self, "unable to get IRQ number or type\n"); 128 return; 129 } 130 131 psc->sc_ic = aa->ic; 132 133 if (!first) 134 first = psc; 135 136 if (!first->sc_pckbc.id) { 137 138 if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) 139 return; 140 141 if (pckbc_is_console(iot, iobase)) { 142 t = &pckbc_consdata; 143 ioh_d = t->t_ioh_d; 144 ioh_c = t->t_ioh_c; 145 pckbc_console_attached = 1; 146 /* t->t_cmdbyte was initialized by cnattach */ 147 } else { 148 if (pnpbios_io_map(aa->pbt, aa->resc, 0, 149 &iot, &ioh_d) || 150 pnpbios_io_map(aa->pbt, aa->resc, 1, 151 &iot, &ioh_c)) 152 panic("pckbc_pnpbios_attach: couldn't map"); 153 154 t = malloc(sizeof(struct pckbc_internal), 155 M_DEVBUF, M_WAITOK); 156 memset(t, 0, sizeof(*t)); 157 t->t_iot = iot; 158 t->t_ioh_d = ioh_d; 159 t->t_ioh_c = ioh_c; 160 t->t_addr = iobase; 161 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 162 callout_init(&t->t_cleanup, 0); 163 } 164 165 t->t_sc = &first->sc_pckbc; 166 first->sc_pckbc.id = t; 167 168 first->sc_pckbc.intr_establish = pckbc_pnpbios_intr_establish; 169 config_defer(first->sc_pckbc.sc_dv, 170 pckbc_pnpbios_finish_attach); 171 } 172 } 173 174 static void 175 pckbc_pnpbios_finish_attach(device_t dv) 176 { 177 178 pckbc_attach(device_private(dv)); 179 } 180 181 void 182 pckbc_pnpbios_intr_establish(struct pckbc_softc *sc, 183 pckbc_slot_t slot) 184 { 185 struct pckbc_pnpbios_softc *psc; 186 isa_chipset_tag_t ic = NULL; 187 void *rv = NULL; 188 int irq, ist; 189 int i; 190 191 /* 192 * Note we're always called with sc == first. 193 */ 194 for (i = 0; i < pckbc_cd.cd_ndevs; i++) { 195 psc = device_lookup_private(&pckbc_cd, i); 196 if (psc && psc->sc_slot == slot) { 197 irq = psc->sc_irq; 198 ist = psc->sc_ist; 199 ic = psc->sc_ic; 200 break; 201 } 202 } 203 if (i < pckbc_cd.cd_ndevs) 204 rv = isa_intr_establish(ic, irq, ist, IPL_TTY, pckbcintr, sc); 205 if (rv == NULL) { 206 aprint_error_dev(sc->sc_dv, 207 "unable to establish interrupt for %s slot\n", 208 pckbc_slot_names[slot]); 209 } else { 210 aprint_normal_dev(sc->sc_dv, "using irq %d for %s slot\n", 211 irq, pckbc_slot_names[slot]); 212 } 213 } 214
Indexes created Mon Sep 29 21:09:56 GMT 2025