FreeBSD/Linux Kernel Cross Reference
sys/dev/acpica/acpi_container.c

     /*-
      * Copyright (c) 2017 Microsoft Corp.
      * 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 unmodified, 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/kernel.h>
    #include <sys/bus.h>
    #include <sys/module.h>
    
    #include <contrib/dev/acpica/include/acpi.h>
    #include <dev/acpica/acpivar.h>
    
    #include "pcib_if.h"
    
    ACPI_MODULE_NAME("CONTAINER")
    
    static int                      acpi_syscont_probe(device_t);
    static int                      acpi_syscont_attach(device_t);
    static int                      acpi_syscont_detach(device_t);
    static int                      acpi_syscont_alloc_msi(device_t, device_t,
                                        int count, int maxcount, int *irqs);
    static int                      acpi_syscont_release_msi(device_t bus, device_t dev,
                                        int count, int *irqs);
    static int                      acpi_syscont_alloc_msix(device_t bus, device_t dev,
                                        int *irq);
    static int                      acpi_syscont_release_msix(device_t bus, device_t dev,
                                        int irq);
    static int                      acpi_syscont_map_msi(device_t bus, device_t dev,
                                        int irq, uint64_t *addr, uint32_t *data);
    
    static device_method_t acpi_syscont_methods[] = {
        /* Device interface */
        DEVMETHOD(device_probe,             acpi_syscont_probe),
        DEVMETHOD(device_attach,            acpi_syscont_attach),
        DEVMETHOD(device_detach,            acpi_syscont_detach),
    
        /* Bus interface */
        DEVMETHOD(bus_add_child,            bus_generic_add_child),
        DEVMETHOD(bus_print_child,          bus_generic_print_child),
        DEVMETHOD(bus_alloc_resource,       bus_generic_alloc_resource),
        DEVMETHOD(bus_release_resource,     bus_generic_release_resource),
        DEVMETHOD(bus_activate_resource,    bus_generic_activate_resource),
        DEVMETHOD(bus_deactivate_resource,  bus_generic_deactivate_resource),
        DEVMETHOD(bus_setup_intr,           bus_generic_setup_intr),
        DEVMETHOD(bus_teardown_intr,        bus_generic_teardown_intr),
    #if __FreeBSD_version >= 1100000
        DEVMETHOD(bus_get_cpus,             bus_generic_get_cpus),
    #endif
    
        /* pcib interface */
        DEVMETHOD(pcib_alloc_msi,           acpi_syscont_alloc_msi),
        DEVMETHOD(pcib_release_msi,         acpi_syscont_release_msi),
        DEVMETHOD(pcib_alloc_msix,          acpi_syscont_alloc_msix),
        DEVMETHOD(pcib_release_msix,        acpi_syscont_release_msix),
        DEVMETHOD(pcib_map_msi,             acpi_syscont_map_msi),
    
        DEVMETHOD_END
    };
    
    static driver_t acpi_syscont_driver = {
        "acpi_syscontainer",
        acpi_syscont_methods,
        0,
    };
    
    DRIVER_MODULE(acpi_syscontainer, acpi, acpi_syscont_driver, NULL, NULL);
    MODULE_DEPEND(acpi_syscontainer, acpi, 1, 1, 1);
    
    static int
    acpi_syscont_probe(device_t dev)
    {
        static char *syscont_ids[] = { "ACPI0004", "PNP0A05", "PNP0A06", NULL };
        int rv;
    
       if (acpi_disabled("syscontainer"))
           return (ENXIO);
       rv = ACPI_ID_PROBE(device_get_parent(dev), dev, syscont_ids, NULL);
       if (rv <= 0)
           device_set_desc(dev, "System Container");
       return (rv);
   }
   
   static int
   acpi_syscont_attach(device_t dev)
   {
   
       bus_generic_probe(dev);
       return (bus_generic_attach(dev));
   }
   
   static int
   acpi_syscont_detach(device_t dev)
   {
   
       return (bus_generic_detach(dev));
   }
   
   static int
   acpi_syscont_alloc_msi(device_t bus, device_t dev, int count, int maxcount,
       int *irqs)
   {
       device_t parent = device_get_parent(bus);
   
       return (PCIB_ALLOC_MSI(device_get_parent(parent), dev, count, maxcount,
           irqs));
   }
   
   static int
   acpi_syscont_release_msi(device_t bus, device_t dev, int count, int *irqs)
   {
       device_t parent = device_get_parent(bus);
   
       return (PCIB_RELEASE_MSI(device_get_parent(parent), dev, count, irqs));
   }
   
   static int
   acpi_syscont_alloc_msix(device_t bus, device_t dev, int *irq)
   {
       device_t parent = device_get_parent(bus);
   
       return (PCIB_ALLOC_MSIX(device_get_parent(parent), dev, irq));
   }
   
   static int
   acpi_syscont_release_msix(device_t bus, device_t dev, int irq)
   {
       device_t parent = device_get_parent(bus);
   
       return (PCIB_RELEASE_MSIX(device_get_parent(parent), dev, irq));
   }
   
   static int
   acpi_syscont_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
       uint32_t *data)
   {
       device_t parent = device_get_parent(bus);
   
       return (PCIB_MAP_MSI(device_get_parent(parent), dev, irq, addr, data));
   }

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