1 /* $NetBSD: pckbc_acpi.c,v 1.24 2008/01/04 21:17:49 ad 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 1.24 2008/01/04 21:17:49 ad 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 <dev/acpi/acpivar.h> 71 72 static int pckbc_acpi_match(struct device *, struct cfdata *, void *); 73 static void pckbc_acpi_attach(struct device *, struct device *, void *); 74 75 struct pckbc_acpi_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_acpi_softc *first; 86 87 extern struct cfdriver pckbc_cd; 88 89 CFATTACH_DECL(pckbc_acpi, sizeof(struct pckbc_acpi_softc), 90 pckbc_acpi_match, pckbc_acpi_attach, NULL, NULL); 91 92 static void pckbc_acpi_intr_establish(struct pckbc_softc *, pckbc_slot_t); 93 94 /* 95 * Supported Device IDs 96 */ 97 98 static const char * const pckbc_acpi_ids_kbd[] = { 99 "PNP03??", /* Standard PC KBD port */ 100 NULL 101 }; 102 103 static const char * const pckbc_acpi_ids_ms[] = { 104 "PNP0F03", 105 "PNP0F0E", 106 "PNP0F12", 107 "PNP0F13", 108 "PNP0F19", 109 "PNP0F1B", 110 "PNP0F1C", 111 NULL 112 }; 113 114 /* 115 * pckbc_acpi_match: autoconf(9) match routine 116 */ 117 static int 118 pckbc_acpi_match(struct device *parent, struct cfdata *match, 119 void *aux) 120 { 121 struct acpi_attach_args *aa = aux; 122 int rv; 123 124 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 125 return 0; 126 127 rv = acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_kbd); 128 if (rv) 129 return rv; 130 rv = acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_ms); 131 if (rv) 132 return rv; 133 return 0; 134 } 135 136 static void 137 pckbc_acpi_attach(struct device *parent, struct device *self, 138 void *aux) 139 { 140 struct pckbc_acpi_softc *psc = (void *) self; 141 struct pckbc_softc *sc = &psc->sc_pckbc; 142 struct pckbc_internal *t; 143 struct acpi_attach_args *aa = aux; 144 bus_space_handle_t ioh_d, ioh_c; 145 pckbc_slot_t peer; 146 struct acpi_resources res; 147 struct acpi_io *io0, *io1, *ioswap; 148 struct acpi_irq *irq; 149 ACPI_STATUS rv; 150 151 psc->sc_ic = aa->aa_ic; 152 153 if (acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_kbd)) { 154 psc->sc_slot = PCKBC_KBD_SLOT; 155 peer = PCKBC_AUX_SLOT; 156 } else if (acpi_match_hid(aa->aa_node->ad_devinfo, pckbc_acpi_ids_ms)) { 157 psc->sc_slot = PCKBC_AUX_SLOT; 158 peer = PCKBC_KBD_SLOT; 159 } else { 160 printf(": unknown port!\n"); 161 panic("pckbc_acpi_attach: impossible"); 162 } 163 164 aprint_naive("\n"); 165 aprint_normal(": %s port\n", pckbc_slot_names[psc->sc_slot]); 166 167 /* parse resources */ 168 rv = acpi_resource_parse(&sc->sc_dv, aa->aa_node->ad_handle, "_CRS", 169 &res, &acpi_resource_parse_ops_default); 170 if (ACPI_FAILURE(rv)) 171 return; 172 173 /* find our IRQ */ 174 irq = acpi_res_irq(&res, 0); 175 if (irq == NULL) { 176 aprint_error("%s: unable to find irq resource\n", sc->sc_dv.dv_xname); 177 goto out; 178 } 179 psc->sc_irq = irq->ar_irq; 180 psc->sc_ist = (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL; 181 182 if (psc->sc_slot == PCKBC_KBD_SLOT) 183 first = psc; 184 185 if ((!first || !first->sc_pckbc.id) && 186 (psc->sc_slot == PCKBC_KBD_SLOT)) { 187 188 io0 = acpi_res_io(&res, 0); 189 io1 = acpi_res_io(&res, 1); 190 if (io0 == NULL || io1 == NULL) { 191 aprint_error("%s: unable to find i/o resources\n", 192 sc->sc_dv.dv_xname); 193 goto out; 194 } 195 196 /* 197 * JDM: Some firmware doesn't report resources in the order we 198 * expect; sort IO resources here (lowest first) 199 */ 200 if (io0->ar_base > io1->ar_base) { 201 ioswap = io0; 202 io0 = io1; 203 io1 = ioswap; 204 } 205 206 if (pckbc_is_console(aa->aa_iot, io0->ar_base)) { 207 t = &pckbc_consdata; 208 ioh_d = t->t_ioh_d; 209 ioh_c = t->t_ioh_c; 210 pckbc_console_attached = 1; 211 /* t->t_cmdbyte was initialized by cnattach */ 212 } else { 213 if (bus_space_map(aa->aa_iot, io0->ar_base, 214 io0->ar_length, 0, &ioh_d) || 215 bus_space_map(aa->aa_iot, io1->ar_base, 216 io1->ar_length, 0, &ioh_c)) 217 panic("pckbc_acpi_attach: couldn't map"); 218 219 t = malloc(sizeof(struct pckbc_internal), 220 M_DEVBUF, M_WAITOK); 221 memset(t, 0, sizeof(*t)); 222 t->t_iot = aa->aa_iot; 223 t->t_ioh_d = ioh_d; 224 t->t_ioh_c = ioh_c; 225 t->t_addr = io0->ar_base; 226 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 227 callout_init(&t->t_cleanup, 0); 228 } 229 230 t->t_sc = &first->sc_pckbc; 231 first->sc_pckbc.id = t; 232 233 if (!pmf_device_register(self, NULL, pckbc_resume)) 234 aprint_error_dev(self, "couldn't establish power handler\n"); 235 236 first->sc_pckbc.intr_establish = pckbc_acpi_intr_establish; 237 config_defer(&first->sc_pckbc.sc_dv, 238 (void(*)(struct device *))pckbc_attach); 239 } else if (!pmf_device_register(self, NULL, NULL)) 240 aprint_error_dev(self, "couldn't establish power handler\n"); 241 out: 242 acpi_resource_cleanup(&res); 243 } 244 245 static void 246 pckbc_acpi_intr_establish(struct pckbc_softc *sc, 247 pckbc_slot_t slot) 248 { 249 struct pckbc_acpi_softc *psc; 250 isa_chipset_tag_t ic = NULL; 251 void *rv = NULL; 252 int irq = 0, ist = 0; /* XXX: gcc */ 253 int i; 254 255 /* 256 * Note we're always called with sc == first. 257 */ 258 for (i = 0; i < pckbc_cd.cd_ndevs; i++) { 259 psc = pckbc_cd.cd_devs[i]; 260 if (psc && psc->sc_slot == slot) { 261 irq = psc->sc_irq; 262 ist = psc->sc_ist; 263 ic = psc->sc_ic; 264 break; 265 } 266 } 267 if (i < pckbc_cd.cd_ndevs) 268 rv = isa_intr_establish(ic, irq, ist, IPL_TTY, pckbcintr, sc); 269 if (rv == NULL) { 270 aprint_error("%s: unable to establish interrupt for %s slot\n", 271 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 272 } else { 273 aprint_normal("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 274 irq, pckbc_slot_names[slot]); 275 } 276 } 277