1 /* $NetBSD: pckbc_acpi.c,v 1.15 2004/05/01 12:03:48 kochi 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 1.15 2004/05/01 12:03:48 kochi 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 static int pckbc_acpi_match(struct device *, struct cfdata *, void *); 75 static 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 static 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_kbd[] = { 101 "PNP03??", /* Standard PC KBD port */ 102 NULL 103 }; 104 105 static const char * const pckbc_acpi_ids_ms[] = { 106 "PNP0F03", 107 "PNP0F0E", 108 "PNP0F12", 109 "PNP0F13", 110 "PNP0F19", 111 "PNP0F1B", 112 "PNP0F1C", 113 NULL 114 }; 115 116 /* 117 * pckbc_acpi_match: autoconf(9) match routine 118 */ 119 static int 120 pckbc_acpi_match(struct device *parent, struct cfdata *match, void *aux) 121 { 122 struct acpi_attach_args *aa = aux; 123 int rv; 124 125 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 126 return 0; 127 128 rv = acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_kbd); 129 if (rv) 130 return rv; 131 rv = acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_ms); 132 if (rv) 133 return rv; 134 return 0; 135 } 136 137 static void 138 pckbc_acpi_attach(struct device *parent, 139 struct device *self, 140 void *aux) 141 { 142 struct pckbc_acpi_softc *psc = (void *) self; 143 struct pckbc_softc *sc = &psc->sc_pckbc; 144 struct pckbc_internal *t; 145 struct acpi_attach_args *aa = aux; 146 bus_space_handle_t ioh_d, ioh_c; 147 pckbc_slot_t peer; 148 struct acpi_resources res; 149 struct acpi_io *io0, *io1; 150 struct acpi_irq *irq; 151 ACPI_STATUS rv; 152 153 psc->sc_ic = aa->aa_ic; 154 155 if (acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_kbd)) { 156 psc->sc_slot = PCKBC_KBD_SLOT; 157 peer = PCKBC_AUX_SLOT; 158 } else if (acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_ms)) { 159 psc->sc_slot = PCKBC_AUX_SLOT; 160 peer = PCKBC_KBD_SLOT; 161 } else { 162 printf(": unknown port!\n"); 163 panic("pckbc_acpi_attach: impossible"); 164 } 165 166 printf(": %s port\n", pckbc_slot_names[psc->sc_slot]); 167 168 /* parse resources */ 169 rv = acpi_resource_parse(&sc->sc_dv, aa->aa_node->ad_handle, "_CRS", 170 &res, &acpi_resource_parse_ops_default); 171 if (ACPI_FAILURE(rv)) 172 return; 173 174 /* find our IRQ */ 175 irq = acpi_res_irq(&res, 0); 176 if (irq == NULL) { 177 printf("%s: unable to find irq resource\n", sc->sc_dv.dv_xname); 178 goto out; 179 } 180 psc->sc_irq = irq->ar_irq; 181 psc->sc_ist = (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL; 182 183 if (psc->sc_slot == PCKBC_KBD_SLOT) 184 first = psc; 185 186 if ((!first || !first->sc_pckbc.id) && 187 (psc->sc_slot == PCKBC_KBD_SLOT)) { 188 189 io0 = acpi_res_io(&res, 0); 190 if (io0 == NULL) { 191 printf("%s: unable to find i/o resources\n", 192 sc->sc_dv.dv_xname); 193 goto out; 194 } 195 196 if (pckbc_is_console(aa->aa_iot, io0->ar_base)) { 197 t = &pckbc_consdata; 198 ioh_d = t->t_ioh_d; 199 ioh_c = t->t_ioh_c; 200 pckbc_console_attached = 1; 201 /* t->t_cmdbyte was initialized by cnattach */ 202 } else { 203 io1 = acpi_res_io(&res, 1); 204 if (io1 == NULL) { 205 printf("%s: unable to find i/o resources\n", 206 sc->sc_dv.dv_xname); 207 goto out; 208 } 209 if (bus_space_map(aa->aa_iot, io0->ar_base, 210 io0->ar_length, 0, &ioh_d) || 211 bus_space_map(aa->aa_iot, io1->ar_base, 212 io1->ar_length, 0, &ioh_c)) 213 panic("pckbc_acpi_attach: couldn't map"); 214 215 t = malloc(sizeof(struct pckbc_internal), 216 M_DEVBUF, M_WAITOK); 217 memset(t, 0, sizeof(*t)); 218 t->t_iot = aa->aa_iot; 219 t->t_ioh_d = ioh_d; 220 t->t_ioh_c = ioh_c; 221 t->t_addr = io0->ar_base; 222 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 223 callout_init(&t->t_cleanup); 224 } 225 226 t->t_sc = &first->sc_pckbc; 227 first->sc_pckbc.id = t; 228 229 first->sc_pckbc.intr_establish = pckbc_acpi_intr_establish; 230 config_defer(&first->sc_pckbc.sc_dv, 231 (void(*)(struct device *))pckbc_attach); 232 } 233 out: 234 acpi_resource_cleanup(&res); 235 } 236 237 static void 238 pckbc_acpi_intr_establish(struct pckbc_softc *sc, 239 pckbc_slot_t slot) 240 { 241 struct pckbc_acpi_softc *psc; 242 isa_chipset_tag_t ic = NULL; 243 void *rv = NULL; 244 int irq = 0, ist = 0; /* XXX: gcc */ 245 int i; 246 247 /* 248 * Note we're always called with sc == first. 249 */ 250 for (i = 0; i < pckbc_cd.cd_ndevs; i++) { 251 psc = pckbc_cd.cd_devs[i]; 252 if (psc && psc->sc_slot == slot) { 253 irq = psc->sc_irq; 254 ist = psc->sc_ist; 255 ic = psc->sc_ic; 256 break; 257 } 258 } 259 if (i < pckbc_cd.cd_ndevs) 260 rv = isa_intr_establish(ic, irq, ist, IPL_TTY, pckbcintr, sc); 261 if (rv == NULL) { 262 printf("%s: unable to establish interrupt for %s slot\n", 263 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 264 } else { 265 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 266 irq, pckbc_slot_names[slot]); 267 } 268 } 269