/* $NetBSD: igpio_acpi.c,v 1.1.4.1 2023/03/12 17:52:13 martin Exp $ */ /*- * Copyright (c) 2021,2022 Emmanuel Dreyfus * All rights reserved. * * 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. */ #include __KERNEL_RCSID(0, "$NetBSD: igpio_acpi.c,v 1.1.4.1 2023/03/12 17:52:13 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include struct igpio_acpi_softc { ACPI_HANDLE sc_handle; struct igpio_softc sc_isc; struct acpi_event * sc_event[8]; int sc_pmf; void *sc_intr; }; static int igpio_acpi_match(device_t, cfdata_t, void *); static void igpio_acpi_attach(device_t, device_t, void *); static int igpio_acpi_detach(device_t, int); static void igpio_acpi_register_event(void *, struct acpi_event *, ACPI_RESOURCE_GPIO *); static int igpio_acpi_intr(void *); CFATTACH_DECL_NEW(igpio_acpi, sizeof(struct igpio_acpi_softc), igpio_acpi_match, igpio_acpi_attach, igpio_acpi_detach, NULL); static const struct device_compatible_entry compat_data[] = { { .compat = "INT344B" }, /* sunrisepoint */ { .compat = "INT3450" }, /* cannonlake */ { .compat = "INT3451" }, /* sunrisepoint */ { .compat = "INT3453" }, /* geminilake */ { .compat = "INT3455" }, /* icelake */ { .compat = "INT345D" }, /* sunrisepoint */ { .compat = "INT34BB" }, /* cannonlake */ { .compat = "INT34C4" }, /* lakefield */ { .compat = "INT34C5" }, /* tigerlake */ { .compat = "INT34C6" }, /* tigerlake */ { .compat = "INT34C8" }, /* jasperlake */ { .compat = "INT3536" }, /* lewisburg */ { .compat = "INTC1055" }, /* tigerlake */ { .compat = "INTC1056" }, /* alderlake */ { .compat = "INTC1057" }, /* tigerlake */ { .compat = "INTC1071" }, /* emmitsburg */ { .compat = "INTC3000" }, /* denverton */ { .compat = "INTC3001" }, /* cedarfork */ #ifdef notyet /* * Complete bank setup in src/sys/dev/ic/igpioreg.h * before enabling */ { .compat = "INT33B2" }, /* baytrail */ { .compat = "INT33C7" }, /* lynxpoint */ { .compat = "INT33FC" }, /* baytrail */ { .compat = "INT3437" }, /* lynxpoint */ { .compat = "INT3452" }, /* broxton */ { .compat = "INT34D1" }, /* broxton */ { .compat = "apollolake-pinctrl" }, /* broxton */ { .compat = "broxton-pinctrl" }, /* broxton */ { .compat = "INT33FF" }, /* cherryview */ #endif DEVICE_COMPAT_EOL }; static int igpio_acpi_match(device_t parent, cfdata_t cf, void *aux) { struct acpi_attach_args *aa = aux; return acpi_compatible_match(aa, compat_data); } static void igpio_acpi_attach(device_t parent, device_t self, void *aux) { struct igpio_acpi_softc * const asc = device_private(self); struct acpi_attach_args *aa = aux; ACPI_DEVICE_INFO *ad = aa->aa_node->ad_devinfo; struct acpi_resources res; struct acpi_mem *mem; struct acpi_irq *irq; int nbar; ACPI_STATUS rv; int i; asc->sc_handle = aa->aa_node->ad_handle; rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", &res, &acpi_resource_parse_ops_default); if (ACPI_FAILURE(rv)) return; irq = acpi_res_irq(&res, 0); if (irq == NULL) { aprint_error_dev(self, "couldn't find irq resource\n"); goto done; } asc->sc_isc.sc_dev = self; asc->sc_isc.sc_bst = aa->aa_memt; for (nbar = 0; acpi_res_mem(&res, nbar); nbar++); asc->sc_isc.sc_nbar = nbar; asc->sc_isc.sc_base = kmem_zalloc(sizeof(*asc->sc_isc.sc_base) * nbar, KM_SLEEP); asc->sc_isc.sc_length = kmem_zalloc(sizeof(*asc->sc_isc.sc_length) * nbar, KM_SLEEP); asc->sc_isc.sc_bsh = kmem_zalloc(sizeof(*asc->sc_isc.sc_bsh) * nbar, KM_SLEEP); asc->sc_isc.sc_acpi_hid = ad->HardwareId.String; for (i = 0; i < nbar; i++) { mem = acpi_res_mem(&res, i); if (mem == NULL) { aprint_error_dev(self, "couldn't find mem resource\n"); goto done; } asc->sc_isc.sc_base[i] = mem->ar_base; asc->sc_isc.sc_length[i] = mem->ar_length; } igpio_attach(&asc->sc_isc); /* If attachement failed */ if (asc->sc_isc.sc_banks == NULL) { igpio_acpi_detach(self, 0); goto done; } rv = acpi_event_create_gpio(self, asc->sc_handle, igpio_acpi_register_event, asc); if (ACPI_FAILURE(rv)) { if (rv != AE_NOT_FOUND) aprint_error_dev(self, "failed to create events: %s\n", AcpiFormatException(rv)); goto done; } asc->sc_intr = acpi_intr_establish(self, (uint64_t)(uintptr_t)asc->sc_handle, IPL_VM, false, igpio_acpi_intr, asc, device_xname(self)); if (asc->sc_intr == NULL) aprint_error_dev(self, "couldn't establish interrupt\n"); done: acpi_resource_cleanup(&res); (void)pmf_device_register(self, NULL, NULL); asc->sc_pmf = 1; } static int igpio_acpi_detach(device_t self, int flags) { struct igpio_acpi_softc * const asc = device_private(self); struct igpio_softc * const isc = &asc->sc_isc; int nbar = isc->sc_nbar; acpi_intr_disestablish(asc->sc_intr); igpio_detach(&asc->sc_isc); if (isc->sc_base != NULL) { kmem_free(isc->sc_base, sizeof(*isc->sc_base) * nbar); isc->sc_base = NULL; } if (isc->sc_length != NULL) { kmem_free(isc->sc_length, sizeof(*isc->sc_length) * nbar); isc->sc_length = NULL; } if (isc->sc_bsh != NULL) { kmem_free(isc->sc_bsh, sizeof(*isc->sc_bsh) * nbar); isc->sc_length = NULL; } if (asc->sc_pmf) { pmf_device_deregister(self); asc->sc_pmf = 0; } return 0; } static void igpio_acpi_register_event(void *priv, struct acpi_event *ev, ACPI_RESOURCE_GPIO *gpio) { return; } static int igpio_acpi_intr(void *priv) { struct igpio_acpi_softc *asc = priv; struct igpio_softc * const isc = &asc->sc_isc; int ret; ret = igpio_intr(isc); return ret; }