acpi_bus_if.m

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    1 #-
    2 # Copyright (c) 2016 The FreeBSD Foundation
    3 #
    4 # This software was developed by Andrew Turner under
    5 # sponsorship from the FreeBSD Foundation.
    6 #
    7 # Redistribution and use in source and binary forms, with or without
    8 # modification, are permitted provided that the following conditions
    9 # are met:
   10 # 1. Redistributions of source code must retain the above copyright
   11 #    notice, this list of conditions and the following disclaimer.
   12 # 2. Redistributions in binary form must reproduce the above copyright
   13 #    notice, this list of conditions and the following disclaimer in the
   14 #    documentation and/or other materials provided with the distribution.
   15 #
   16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26 # SUCH DAMAGE.
   27 #
   28 # $FreeBSD$
   29 
   30 #include <sys/types.h>
   31 #include <sys/systm.h>
   32 #include <sys/bus.h>
   33 
   34 INTERFACE acpi_bus;
   35 
   36 CODE {
   37         static acpi_bus_map_intr_t acpi_bus_default_map_intr;
   38 
   39         int
   40         acpi_bus_default_map_intr(device_t bus, device_t dev, u_int irq,
   41             int trig, int pol)
   42         {
   43                 device_t parent;
   44 
   45                 /* Pass up the hierarchy */
   46                 parent = device_get_parent(bus);
   47                 if (parent != NULL)
   48                         return (ACPI_BUS_MAP_INTR(parent, dev, irq, trig, pol));
   49 
   50                 panic("Unable to map interrupt %u", irq);
   51         }
   52 };
   53 
   54 # Map an interrupt from ACPI space to the FreeBSD IRQ space. Note that
   55 # both of these may be different than the pysical interrupt space as this
   56 # may be local to each interrupt controller.
   57 #
   58 # This method also associates interrupt metadata with the interrupt,
   59 # removing the need for a post hoc configure step.
   60 METHOD int map_intr {
   61         device_t bus;
   62         device_t dev;
   63         u_int irq;
   64         int trig;
   65         int pol;
   66 } DEFAULT acpi_bus_default_map_intr;

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FreeBSD/Linux Kernel Cross Reference sys/dev/acpica/acpi_bus_if.m

FreeBSD/Linux Kernel Cross Reference
sys/dev/acpica/acpi_bus_if.m