pckbc_acpi.c revision 1.9
1 /* $NetBSD: pckbc_acpi.c,v 1.9 2003/11/03 18:07:10 mycroft 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 * ACPI attachment for the PC Keyboard Controller driver. 41 * 42 * This is a little wonky. The keyboard controller actually 43 * has 2 ACPI 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_acpi.c,v 1.9 2003/11/03 18:07:10 mycroft 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 <dev/acpi/acpivar.h> 73 74 int pckbc_acpi_match(struct device *, struct cfdata *, void *); 75 void pckbc_acpi_attach(struct device *, struct device *, void *); 76 77 struct pckbc_acpi_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_acpi_softc *first; 88 89 extern struct cfdriver pckbc_cd; 90 91 CFATTACH_DECL(pckbc_acpi, sizeof(struct pckbc_acpi_softc), 92 pckbc_acpi_match, pckbc_acpi_attach, NULL, NULL); 93 94 void pckbc_acpi_intr_establish(struct pckbc_softc *, pckbc_slot_t); 95 96 /* 97 * Supported Device IDs 98 */ 99 100 static const char * const pckbc_acpi_ids[] = { 101 "PNP0303", /* Standard PC KBD/MS port */ 102 "PNP0320", /* Japanese 106 */ 103 "PNP0F13", 104 "PNP0F03", 105 "IBM3780", /* IBM pointing device */ 106 NULL 107 }; 108 109 /* 110 * pckbc_acpi_match: autoconf(9) match routine 111 */ 112 int 113 pckbc_acpi_match(struct device *parent, struct cfdata *match, void *aux) 114 { 115 struct acpi_attach_args *aa = aux; 116 117 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 118 return (0); 119 120 return (acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids)); 121 } 122 123 void 124 pckbc_acpi_attach(struct device *parent, 125 struct device *self, 126 void *aux) 127 { 128 struct pckbc_acpi_softc *psc = (void *) self; 129 struct pckbc_softc *sc = &psc->sc_pckbc; 130 struct pckbc_internal *t; 131 struct acpi_attach_args *aa = aux; 132 bus_space_handle_t ioh_d, ioh_c; 133 const char *idstr = aa->aa_node->ad_devinfo->HardwareId.Value; 134 pckbc_slot_t peer; 135 struct acpi_resources res; 136 struct acpi_io *io0, *io1; 137 struct acpi_irq *irq; 138 ACPI_STATUS rv; 139 140 psc->sc_ic = aa->aa_ic; 141 142 if (strncmp(idstr, "PNP03", 5) == 0) { 143 psc->sc_slot = PCKBC_KBD_SLOT; 144 peer = PCKBC_AUX_SLOT; 145 } else if (strncmp(idstr, "PNP0F", 5) == 0 || 146 strcmp(idstr, "IBM3780") == 0) { 147 psc->sc_slot = PCKBC_AUX_SLOT; 148 peer = PCKBC_KBD_SLOT; 149 } else { 150 printf(": unknown port!\n"); 151 panic("pckbc_acpi_attach: impossible"); 152 } 153 154 printf(": %s port\n", pckbc_slot_names[psc->sc_slot]); 155 156 /* parse resources */ 157 rv = acpi_resource_parse(&sc->sc_dv, aa->aa_node, &res, 158 &acpi_resource_parse_ops_default); 159 if (ACPI_FAILURE(rv)) 160 return; 161 162 /* find our IRQ */ 163 irq = acpi_res_irq(&res, 0); 164 if (irq == NULL) { 165 printf("%s: unable to find irq resource\n", sc->sc_dv.dv_xname); 166 return; 167 } 168 psc->sc_irq = irq->ar_irq; 169 psc->sc_ist = (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL; 170 171 if (psc->sc_slot == PCKBC_KBD_SLOT) 172 first = psc; 173 174 if ((!first || !first->sc_pckbc.id) && 175 (psc->sc_slot == PCKBC_KBD_SLOT)) { 176 177 io0 = acpi_res_io(&res, 0); 178 if (io0 == NULL) { 179 printf("%s: unable to find i/o resources\n", 180 sc->sc_dv.dv_xname); 181 return; 182 } 183 184 if (pckbc_is_console(aa->aa_iot, io0->ar_base)) { 185 t = &pckbc_consdata; 186 ioh_d = t->t_ioh_d; 187 ioh_c = t->t_ioh_c; 188 pckbc_console_attached = 1; 189 /* t->t_cmdbyte was initialized by cnattach */ 190 } else { 191 io1 = acpi_res_io(&res, 1); 192 if (io1 == NULL) { 193 printf("%s: unable to find i/o resources\n", 194 sc->sc_dv.dv_xname); 195 return; 196 } 197 if (bus_space_map(aa->aa_iot, io0->ar_base, 198 io0->ar_length, 0, &ioh_d) || 199 bus_space_map(aa->aa_iot, io1->ar_base, 200 io1->ar_length, 0, &ioh_c)) 201 panic("pckbc_acpi_attach: couldn't map"); 202 203 t = malloc(sizeof(struct pckbc_internal), 204 M_DEVBUF, M_WAITOK); 205 memset(t, 0, sizeof(*t)); 206 t->t_iot = aa->aa_iot; 207 t->t_ioh_d = ioh_d; 208 t->t_ioh_c = ioh_c; 209 t->t_addr = io0->ar_base; 210 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 211 callout_init(&t->t_cleanup); 212 } 213 214 t->t_sc = &first->sc_pckbc; 215 first->sc_pckbc.id = t; 216 217 first->sc_pckbc.intr_establish = pckbc_acpi_intr_establish; 218 config_defer(&first->sc_pckbc.sc_dv, 219 (void(*)(struct device *))pckbc_attach); 220 } 221 } 222 223 void 224 pckbc_acpi_intr_establish(struct pckbc_softc *sc, 225 pckbc_slot_t slot) 226 { 227 struct pckbc_acpi_softc *psc; 228 isa_chipset_tag_t ic = NULL; 229 void *rv = NULL; 230 int irq = 0, ist = 0; /* XXX: gcc */ 231 int i; 232 233 /* 234 * Note we're always called with sc == first. 235 */ 236 for (i = 0; i < pckbc_cd.cd_ndevs; i++) { 237 psc = pckbc_cd.cd_devs[i]; 238 if (psc && psc->sc_slot == slot) { 239 irq = psc->sc_irq; 240 ist = psc->sc_ist; 241 ic = psc->sc_ic; 242 break; 243 } 244 } 245 if (i < pckbc_cd.cd_ndevs) 246 rv = isa_intr_establish(ic, irq, ist, IPL_TTY, pckbcintr, sc); 247 if (rv == NULL) { 248 printf("%s: unable to establish interrupt for %s slot\n", 249 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 250 } else { 251 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 252 irq, pckbc_slot_names[slot]); 253 } 254 } 255
Indexes created Thu Sep 25 14:09:45 GMT 2025