2014-04-01 21:49:40 +04:00
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/* $NetBSD: apple_smc_acpi.c,v 1.3 2014/04/01 17:49:40 riastradh Exp $ */
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2014-04-01 21:47:36 +04:00
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/*
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* Apple System Management Controller: ACPI Attachment
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*/
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/*-
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* Copyright (c) 2013 Taylor R. Campbell
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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2014-04-01 21:49:40 +04:00
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__KERNEL_RCSID(0, "$NetBSD: apple_smc_acpi.c,v 1.3 2014/04/01 17:49:40 riastradh Exp $");
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2014-04-01 21:47:36 +04:00
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#include <sys/types.h>
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#include <sys/param.h>
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2014-04-01 21:48:39 +04:00
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#include <sys/bus.h>
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#include <sys/module.h>
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2014-04-01 21:47:36 +04:00
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#include <dev/acpi/acpireg.h>
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#include <dev/acpi/acpivar.h>
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#include <dev/ic/apple_smcreg.h>
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#include <dev/ic/apple_smcvar.h>
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#define _COMPONENT ACPI_RESOURCE_COMPONENT
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ACPI_MODULE_NAME ("apple_smc_acpi")
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struct apple_smc_acpi_softc {
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struct apple_smc_tag sc_smc;
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};
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static int apple_smc_acpi_match(device_t, cfdata_t, void *);
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static void apple_smc_acpi_attach(device_t, device_t, void *);
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static int apple_smc_acpi_detach(device_t, int);
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2014-04-01 21:48:39 +04:00
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static int apple_smc_acpi_rescan(device_t, const char *, const int *);
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static void apple_smc_acpi_child_detached(device_t, device_t);
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CFATTACH_DECL2_NEW(apple_smc_acpi, sizeof(struct apple_smc_acpi_softc),
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apple_smc_acpi_match,
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apple_smc_acpi_attach,
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apple_smc_acpi_detach,
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NULL /* activate */,
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apple_smc_acpi_rescan,
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apple_smc_acpi_child_detached);
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2014-04-01 21:47:36 +04:00
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static const char *const apple_smc_ids[] = {
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"APP0001",
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NULL
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};
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static int
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apple_smc_acpi_match(device_t parent, cfdata_t match, void *aux)
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{
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struct acpi_attach_args *aa = aux;
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if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
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return 0;
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if (!acpi_match_hid(aa->aa_node->ad_devinfo, apple_smc_ids))
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return 0;
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return 1;
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}
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static void
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apple_smc_acpi_attach(device_t parent, device_t self, void *aux)
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{
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struct apple_smc_acpi_softc *sc = device_private(self);
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struct apple_smc_tag *smc = &sc->sc_smc;
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struct acpi_attach_args *aa = aux;
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struct acpi_resources res;
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struct acpi_io *io;
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int rv;
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smc->smc_dev = self;
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aprint_normal("\n");
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aprint_naive("\n");
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rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS",
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&res, &acpi_resource_parse_ops_default);
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if (ACPI_FAILURE(rv)) {
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aprint_error_dev(self, "couldn't parse SMC resources: %s\n",
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AcpiFormatException(rv));
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goto out0;
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}
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io = acpi_res_io(&res, 0);
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if (io == NULL) {
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aprint_error_dev(self, "no I/O resource\n");
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goto out1;
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}
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if (io->ar_length < APPLE_SMC_REGSIZE) {
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aprint_error_dev(self, "I/O resources too small: %"PRId32"\n",
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io->ar_length);
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goto out1;
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}
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if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 0,
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&smc->smc_bsh) != 0) {
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aprint_error_dev(self, "unable to map I/O registers\n");
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goto out1;
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}
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smc->smc_bst = aa->aa_iot;
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smc->smc_size = io->ar_length;
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apple_smc_attach(smc);
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out1: acpi_resource_cleanup(&res);
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out0: return;
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}
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static int
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apple_smc_acpi_detach(device_t self, int flags)
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{
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struct apple_smc_acpi_softc *sc = device_private(self);
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struct apple_smc_tag *smc = &sc->sc_smc;
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int error;
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if (smc->smc_size != 0) {
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error = apple_smc_detach(smc, flags);
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if (error)
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return error;
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bus_space_unmap(smc->smc_bst, smc->smc_bsh, smc->smc_size);
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smc->smc_size = 0;
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}
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return 0;
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}
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2014-04-01 21:48:39 +04:00
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static int
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apple_smc_acpi_rescan(device_t self, const char *ifattr, const int *locs)
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{
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struct apple_smc_acpi_softc *const sc = device_private(self);
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return apple_smc_rescan(&sc->sc_smc, ifattr, locs);
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}
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static void
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apple_smc_acpi_child_detached(device_t self, device_t child)
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{
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struct apple_smc_acpi_softc *const sc = device_private(self);
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apple_smc_child_detached(&sc->sc_smc, child);
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}
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MODULE(MODULE_CLASS_DRIVER, apple_smc_acpi, "apple_smc");
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#ifdef _MODULE
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#include "ioconf.c"
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#endif
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static int
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apple_smc_acpi_modcmd(modcmd_t cmd, void *arg __unused)
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{
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2014-04-01 21:49:40 +04:00
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#ifdef _MODULE
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2014-04-01 21:48:39 +04:00
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int error;
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2014-04-01 21:49:40 +04:00
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#endif
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2014-04-01 21:48:39 +04:00
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switch (cmd) {
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case MODULE_CMD_INIT:
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#ifdef _MODULE
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error = config_init_component(cfdriver_ioconf_apple_smc_acpi,
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cfattach_ioconf_apple_smc_acpi,
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cfdata_ioconf_apple_smc_acpi);
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if (error)
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return error;
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#endif
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return 0;
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case MODULE_CMD_FINI:
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#ifdef _MODULE
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error = config_fini_component(cfdriver_ioconf_apple_smc_acpi,
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cfattach_ioconf_apple_smc_acpi,
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cfdata_ioconf_apple_smc_acpi);
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if (error)
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return error;
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#endif
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return 0;
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default:
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return ENOTTY;
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}
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}
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