drivers/acpi/container.c

   1 /*
   2  * container.c  - ACPI Generic Container Driver
   3  *
   4  * Copyright (C) 2004 Anil S Keshavamurthy (anil.s.keshavamurthy@intel.com)
   5  * Copyright (C) 2004 Keiichiro Tokunaga (tokunaga.keiich@jp.fujitsu.com)
   6  * Copyright (C) 2004 Motoyuki Ito (motoyuki@soft.fujitsu.com)
   7  * Copyright (C) 2004 FUJITSU LIMITED
   8  * Copyright (C) 2004, 2013 Intel Corp.
   9  * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
  10  *
  11  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  12  *
  13  *  This program is free software; you can redistribute it and/or modify
  14  *  it under the terms of the GNU General Public License as published by
  15  *  the Free Software Foundation; either version 2 of the License, or (at
  16  *  your option) any later version.
  17  *
  18  *  This program is distributed in the hope that it will be useful, but
  19  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21  *  General Public License for more details.
  22  *
  23  *  You should have received a copy of the GNU General Public License along
  24  *  with this program; if not, write to the Free Software Foundation, Inc.,
  25  *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  26  *
  27  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  28  */
  29 #include <linux/acpi.h>
  30
  31 #include "internal.h"
  32
  33 #include "internal.h"
  34
  35 #define PREFIX "ACPI: "
  36
  37 #define _COMPONENT                      ACPI_CONTAINER_COMPONENT
  38 ACPI_MODULE_NAME("container");
  39
  40 static const struct acpi_device_id container_device_ids[] = {
  41         {"ACPI0004", 0},
  42         {"PNP0A05", 0},
  43         {"PNP0A06", 0},
  44         {"", 0},
  45 };
  46
  47 static int container_device_attach(struct acpi_device *device,
  48                                    const struct acpi_device_id *not_used)
  49 {
  50         /* This is necessary for container hotplug to work. */
  51         return 1;
  52 }
  53
  54 static struct acpi_scan_handler container_handler = {
  55         .ids = container_device_ids,
  56         .attach = container_device_attach,
  57         .hotplug = {
  58                 .enabled = true,
  59                 .mode = AHM_CONTAINER,
  60         },
  61 };
  62
  63 void __init acpi_container_init(void)
  64 {
  65         acpi_scan_add_handler_with_hotplug(&container_handler, "container");
  66 }