/* $NetBSD: pckbc_acpi.c,v 1.40 2024/11/10 13:29:38 martin Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * ACPI attachment for the PC Keyboard Controller driver. * * This is a little wonky. The keyboard controller actually * has 2 ACPI nodes: one for the controller and the keyboard * interrupt, and one for the aux port (mouse) interrupt. * * For this reason, we actually attach *two* instances of this * driver. After both of them have been found, then we attach * sub-devices. */ #include __KERNEL_RCSID(0, "$NetBSD: pckbc_acpi.c,v 1.40 2024/11/10 13:29:38 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include "ioconf.h" static int pckbc_acpi_match(device_t, cfdata_t, void *); static void pckbc_acpi_attach(device_t, device_t, void *); struct pckbc_acpi_softc { struct pckbc_softc sc_pckbc; ACPI_HANDLE sc_handle; pckbc_slot_t sc_slot; }; /* Save first port: */ static struct pckbc_acpi_softc *first; CFATTACH_DECL_NEW(pckbc_acpi, sizeof(struct pckbc_acpi_softc), pckbc_acpi_match, pckbc_acpi_attach, NULL, NULL); static void pckbc_acpi_intr_establish(struct pckbc_softc *, pckbc_slot_t); static void pckbc_acpi_finish_attach(device_t); /* * Supported Device IDs */ static const struct device_compatible_entry compat_data[] = { /* Standard PC KBD port */ { .compat = "PNP03??", .value = PCKBC_KBD_SLOT }, /* (Nobody else here but us mouses...) */ { .compat = "PNP0F03", .value = PCKBC_AUX_SLOT }, { .compat = "PNP0F0E", .value = PCKBC_AUX_SLOT }, { .compat = "PNP0F12", .value = PCKBC_AUX_SLOT }, { .compat = "PNP0F13", .value = PCKBC_AUX_SLOT }, { .compat = "PNP0F19", .value = PCKBC_AUX_SLOT }, { .compat = "PNP0F1B", .value = PCKBC_AUX_SLOT }, { .compat = "PNP0F1C", .value = PCKBC_AUX_SLOT }, { .compat = "SYN0302", .value = PCKBC_AUX_SLOT }, { .compat = "ELAN0501", .value = PCKBC_AUX_SLOT }, DEVICE_COMPAT_EOL }; /* * pckbc_acpi_match: autoconf(9) match routine */ static int pckbc_acpi_match(device_t parent, cfdata_t match, void *aux) { struct acpi_attach_args *aa = aux; return acpi_compatible_match(aa, compat_data); } static void pckbc_acpi_attach(device_t parent, device_t self, void *aux) { struct pckbc_acpi_softc *psc = device_private(self); struct pckbc_softc *sc = &psc->sc_pckbc; struct pckbc_internal *t; struct acpi_attach_args *aa = aux; const struct device_compatible_entry *dce; bus_space_handle_t ioh_d, ioh_c; struct acpi_resources res; struct acpi_io *io0, *io1, *ioswap; struct acpi_irq *irq; ACPI_STATUS rv; sc->sc_dv = self; dce = acpi_compatible_lookup(aa, compat_data); KASSERT(dce != NULL); psc->sc_slot = dce->value; aprint_normal(" (%s port)", pckbc_slot_names[psc->sc_slot]); /* parse resources */ rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS", &res, &acpi_resource_parse_ops_default); if (ACPI_FAILURE(rv)) return; /* find our IRQ */ irq = acpi_res_irq(&res, 0); if (irq == NULL) { aprint_error_dev(self, "unable to find irq resource\n"); goto out; } psc->sc_handle = aa->aa_node->ad_handle; if (psc->sc_slot == PCKBC_KBD_SLOT) first = psc; if ((!first || !first->sc_pckbc.id) && (psc->sc_slot == PCKBC_KBD_SLOT)) { io0 = acpi_res_io(&res, 0); io1 = acpi_res_io(&res, 1); if (io0 == NULL || io1 == NULL) { aprint_error_dev(self, "unable to find i/o resources\n"); goto out; } /* * JDM: Some firmware doesn't report resources in the order we * expect; sort IO resources here (lowest first) */ if (io0->ar_base > io1->ar_base) { ioswap = io0; io0 = io1; io1 = ioswap; } if (pckbc_is_console(aa->aa_iot, io0->ar_base)) { t = &pckbc_consdata; ioh_d = t->t_ioh_d; ioh_c = t->t_ioh_c; pckbc_console_attached = 1; /* t->t_cmdbyte was initialized by cnattach */ } else { if (bus_space_map(aa->aa_iot, io0->ar_base, io0->ar_length, 0, &ioh_d) || bus_space_map(aa->aa_iot, io1->ar_base, io1->ar_length, 0, &ioh_c)) { aprint_error_dev(self, "unable to map registers\n"); goto out; } t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK|M_ZERO); t->t_iot = aa->aa_iot; t->t_ioh_d = ioh_d; t->t_ioh_c = ioh_c; t->t_addr = io0->ar_base; t->t_cmdbyte = KC8_CPU; /* Enable ports */ callout_init(&t->t_cleanup, 0); } t->t_sc = &first->sc_pckbc; first->sc_pckbc.id = t; if (!pmf_device_register(self, NULL, pckbc_resume)) aprint_error_dev(self, "couldn't establish power handler\n"); first->sc_pckbc.intr_establish = pckbc_acpi_intr_establish; config_defer(first->sc_pckbc.sc_dv, pckbc_acpi_finish_attach); } out: if (!pmf_device_register(self, NULL, NULL)) aprint_error_dev(self, "couldn't establish power handler\n"); acpi_resource_cleanup(&res); } static void pckbc_acpi_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot) { struct pckbc_acpi_softc *psc = NULL; /* XXX: gcc */ void *rv = NULL; ACPI_HANDLE handle; char intr_name[64]; int i; /* * Note we're always called with sc == first. */ for (i = 0; i < pckbc_cd.cd_ndevs; i++) { psc = device_lookup_private(&pckbc_cd, i); if (psc && psc->sc_slot == slot) { handle = psc->sc_handle; break; } } if (i < pckbc_cd.cd_ndevs) { snprintf(intr_name, sizeof(intr_name), "%s %s", device_xname(psc->sc_pckbc.sc_dv), pckbc_slot_names[slot]); rv = acpi_intr_establish(sc->sc_dv, (uint64_t)(uintptr_t)handle, IPL_TTY, false, pckbcintr, sc, intr_name); } if (rv == NULL) { aprint_error_dev(sc->sc_dv, "unable to establish interrupt for %s slot\n", pckbc_slot_names[slot]); } else { aprint_normal_dev(sc->sc_dv, "using %s for %s slot\n", acpi_intr_string(rv, intr_name, sizeof(intr_name)), pckbc_slot_names[slot]); } } static void pckbc_acpi_finish_attach(device_t dv) { pckbc_attach(device_private(dv)); }