FreeBSD/Linux Kernel Cross Reference
sys/dev/sdhci/sdhci_xenon_acpi.c

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2021 Semihalf
      *
      * 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 AUTHOR ``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 AUTHOR 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 <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/bus.h>
    #include <sys/kernel.h>
    #include <sys/module.h>
    #include <sys/taskqueue.h>
    
    #include <dev/mmc/bridge.h>
    #include <dev/mmc/mmcbrvar.h>
    #include <dev/mmc/mmcreg.h>
    
    #include <dev/mmc/mmc_helpers.h>
    
    #include <contrib/dev/acpica/include/acpi.h>
    #include <contrib/dev/acpica/include/accommon.h>
    #include <dev/acpica/acpivar.h>
    
    #include <dev/extres/regulator/regulator.h>
    
    #include <dev/sdhci/sdhci.h>
    #include <dev/sdhci/sdhci_xenon.h>
    
    #include "mmcbr_if.h"
    #include "sdhci_if.h"
    
    #include "opt_mmccam.h"
    #include "opt_soc.h"
    
    static char *sdhci_xenon_hids[] = {
            "MRVL0002",
            "MRVL0003",
            "MRVL0004",
            NULL
    };
    
    static int
    sdhci_xenon_acpi_probe(device_t dev)
    {
            device_t bus;
            int err;
    
            bus = device_get_parent(dev);
    
            err = ACPI_ID_PROBE(bus, dev, sdhci_xenon_hids, NULL);
            if (err <= 0) {
                    device_set_desc(dev, "Armada Xenon SDHCI controller");
                    return (err);
            }
    
            return (ENXIO);
    }
    
    static int
    sdhci_xenon_acpi_attach(device_t dev)
    {
            struct sdhci_xenon_softc *sc;
            struct sdhci_slot *slot;
            struct mmc_helper mmc_helper;
    
            sc = device_get_softc(dev);
            memset(&mmc_helper, 0, sizeof(mmc_helper));
    
            slot = malloc(sizeof(*slot), M_DEVBUF, M_ZERO | M_WAITOK);
            if (!slot)
                    return (ENOMEM);
    
            /*
             * Don't use regularators.
             * In ACPI mode the firmware takes care of them for us
             */
           sc->skip_regulators = true;
           sc->slot = slot;
   
           if (mmc_parse(dev, &mmc_helper, &slot->host) != 0)
                   return (ENXIO);
   
           if (mmc_helper.props & MMC_PROP_NON_REMOVABLE) {
                   slot->opt |= SDHCI_NON_REMOVABLE;
                   if (bootverbose)
                           device_printf(dev, "Non-removable media\n");
           }
   
           sc->wp_inverted = mmc_helper.props & MMC_PROP_WP_INVERTED;
   
           return (sdhci_xenon_attach(dev));
   }
   
   static device_method_t sdhci_xenon_acpi_methods[] = {
           /* device_if */
           DEVMETHOD(device_probe,         sdhci_xenon_acpi_probe),
           DEVMETHOD(device_attach,        sdhci_xenon_acpi_attach),
           DEVMETHOD(device_detach,        sdhci_xenon_detach),
   
           DEVMETHOD(sdhci_get_card_present,       sdhci_generic_get_card_present),
   
           DEVMETHOD_END
   };
   
   DEFINE_CLASS_1(sdhci_xenon, sdhci_xenon_acpi_driver, sdhci_xenon_acpi_methods,
           sizeof(struct sdhci_xenon_softc), sdhci_xenon_driver);
   
   DRIVER_MODULE(sdhci_xenon, acpi, sdhci_xenon_acpi_driver, NULL, NULL);
   
   #ifndef MMCCAM
   MMC_DECLARE_BRIDGE(sdhci_xenon_acpi);
   #endif

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