pckbc_pnpbios.c revision 1.15
1 /* $NetBSD: pckbc_pnpbios.c,v 1.15 2008/03/17 01:16:22 cube 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 1.15 2008/03/17 01:16:22 cube 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/bus.h> 63 64 #include <dev/isa/isareg.h> 65 #include <dev/isa/isavar.h> 66 67 #include <dev/ic/i8042reg.h> 68 #include <dev/ic/pckbcvar.h> 69 70 #include <i386/pnpbios/pnpbiosvar.h> 71 72 int pckbc_pnpbios_match(device_t, cfdata_t, void *); 73 void pckbc_pnpbios_attach(device_t, device_t, void *); 74 75 struct pckbc_pnpbios_softc { 76 struct pckbc_softc sc_pckbc; 77 78 isa_chipset_tag_t sc_ic; 79 int sc_irq; 80 int sc_ist; 81 pckbc_slot_t sc_slot; 82 }; 83 84 /* Save first port: */ 85 static struct pckbc_pnpbios_softc *first; 86 87 extern struct cfdriver pckbc_cd; 88 89 CFATTACH_DECL_NEW(pckbc_pnpbios, sizeof(struct pckbc_pnpbios_softc), 90 pckbc_pnpbios_match, pckbc_pnpbios_attach, NULL, NULL); 91 92 void pckbc_pnpbios_intr_establish(struct pckbc_softc *, pckbc_slot_t); 93 static void pckbc_pnpbios_finish_attach(device_t); 94 95 int 96 pckbc_pnpbios_match(device_t parent, cfdata_t match, void *aux) 97 { 98 struct pnpbiosdev_attach_args *aa = aux; 99 100 if (strcmp(aa->idstr, "PNP0303") == 0 || 101 strcmp(aa->idstr, "PNP0320") == 0) /* Japanese 106 */ 102 return (1); /* plus more? */ 103 if (strcmp(aa->idstr, "PNP0F13") == 0) 104 return (1); 105 106 return (0); 107 } 108 109 void 110 pckbc_pnpbios_attach(device_t parent, device_t self, void *aux) 111 { 112 struct pckbc_pnpbios_softc *psc = device_private(self); 113 struct pckbc_softc *sc = &psc->sc_pckbc; 114 struct pckbc_internal *t; 115 struct pnpbiosdev_attach_args *aa = aux; 116 bus_space_tag_t iot; 117 bus_space_handle_t ioh_d, ioh_c; 118 pckbc_slot_t peer; 119 int iobase; 120 121 sc->sc_dv = self; 122 if (strncmp(aa->idstr, "PNP03", 5) == 0) { 123 psc->sc_slot = PCKBC_KBD_SLOT; 124 peer = PCKBC_AUX_SLOT; 125 } else if (strcmp(aa->idstr, "PNP0F13") == 0) { 126 psc->sc_slot = PCKBC_AUX_SLOT; 127 peer = PCKBC_KBD_SLOT; 128 } else { 129 aprint_error(": unknown port!\n"); 130 panic("pckbc_pnpbios_attach: impossible"); 131 } 132 133 aprint_normal(": %s port\n", pckbc_slot_names[psc->sc_slot]); 134 135 if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &psc->sc_irq, 136 &psc->sc_ist) != 0) { 137 aprint_error_dev(self, "unable to get IRQ number or type\n"); 138 return; 139 } 140 141 psc->sc_ic = aa->ic; 142 143 if (!first) 144 first = psc; 145 146 if (!first->sc_pckbc.id) { 147 148 if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) 149 return; 150 151 if (pckbc_is_console(iot, iobase)) { 152 t = &pckbc_consdata; 153 ioh_d = t->t_ioh_d; 154 ioh_c = t->t_ioh_c; 155 pckbc_console_attached = 1; 156 /* t->t_cmdbyte was initialized by cnattach */ 157 } else { 158 if (pnpbios_io_map(aa->pbt, aa->resc, 0, 159 &iot, &ioh_d) || 160 pnpbios_io_map(aa->pbt, aa->resc, 1, 161 &iot, &ioh_c)) 162 panic("pckbc_pnpbios_attach: couldn't map"); 163 164 t = malloc(sizeof(struct pckbc_internal), 165 M_DEVBUF, M_WAITOK); 166 memset(t, 0, sizeof(*t)); 167 t->t_iot = iot; 168 t->t_ioh_d = ioh_d; 169 t->t_ioh_c = ioh_c; 170 t->t_addr = iobase; 171 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 172 callout_init(&t->t_cleanup, 0); 173 } 174 175 t->t_sc = &first->sc_pckbc; 176 first->sc_pckbc.id = t; 177 178 first->sc_pckbc.intr_establish = pckbc_pnpbios_intr_establish; 179 config_defer(first->sc_pckbc.sc_dv, 180 pckbc_pnpbios_finish_attach); 181 } 182 } 183 184 static void 185 pckbc_pnpbios_finish_attach(device_t dv) 186 { 187 188 pckbc_attach(device_private(dv)); 189 } 190 191 void 192 pckbc_pnpbios_intr_establish(struct pckbc_softc *sc, 193 pckbc_slot_t slot) 194 { 195 struct pckbc_pnpbios_softc *psc; 196 isa_chipset_tag_t ic = NULL; 197 void *rv = NULL; 198 int irq, ist; 199 int i; 200 201 /* 202 * Note we're always called with sc == first. 203 */ 204 for (i = 0; i < pckbc_cd.cd_ndevs; i++) { 205 psc = pckbc_cd.cd_devs[i]; 206 if (psc && psc->sc_slot == slot) { 207 irq = psc->sc_irq; 208 ist = psc->sc_ist; 209 ic = psc->sc_ic; 210 break; 211 } 212 } 213 if (i < pckbc_cd.cd_ndevs) 214 rv = isa_intr_establish(ic, irq, ist, IPL_TTY, pckbcintr, sc); 215 if (rv == NULL) { 216 aprint_error_dev(sc->sc_dv, 217 "unable to establish interrupt for %s slot\n", 218 pckbc_slot_names[slot]); 219 } else { 220 aprint_normal_dev(sc->sc_dv, "using irq %d for %s slot\n", 221 irq, pckbc_slot_names[slot]); 222 } 223 } 224
Indexes created Thu Oct 02 10:09:58 GMT 2025