8b48463f89
Replace direct inclusions of <acpi/acpi.h>, <acpi/acpi_bus.h> and <acpi/acpi_drivers.h>, which are incorrect, with <linux/acpi.h> inclusions and remove some inclusions of those files that aren't necessary. First of all, <acpi/acpi.h>, <acpi/acpi_bus.h> and <acpi/acpi_drivers.h> should not be included directly from any files that are built for CONFIG_ACPI unset, because that generally leads to build warnings about undefined symbols in !CONFIG_ACPI builds. For CONFIG_ACPI set, <linux/acpi.h> includes those files and for CONFIG_ACPI unset it provides stub ACPI symbols to be used in that case. Second, there are ordering dependencies between those files that always have to be met. Namely, it is required that <acpi/acpi_bus.h> be included prior to <acpi/acpi_drivers.h> so that the acpi_pci_root declarations the latter depends on are always there. And <acpi/acpi.h> which provides basic ACPICA type declarations should always be included prior to any other ACPI headers in CONFIG_ACPI builds. That also is taken care of including <linux/acpi.h> as appropriate. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Tony Luck <tony.luck@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> (drivers/pci stuff) Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> (Xen stuff) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
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* wakeup.c - support wakeup devices
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* Copyright (C) 2004 Li Shaohua <shaohua.li@intel.com>
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*/
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#include <linux/init.h>
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#include <linux/acpi.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include "internal.h"
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#include "sleep.h"
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/*
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* We didn't lock acpi_device_lock in the file, because it invokes oops in
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* suspend/resume and isn't really required as this is called in S-state. At
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* that time, there is no device hotplug
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**/
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#define _COMPONENT ACPI_SYSTEM_COMPONENT
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ACPI_MODULE_NAME("wakeup_devices")
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/**
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* acpi_enable_wakeup_devices - Enable wake-up device GPEs.
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* @sleep_state: ACPI system sleep state.
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*
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* Enable wakeup device power of devices with the state.enable flag set and set
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* the wakeup enable mask bits in the GPE registers that correspond to wakeup
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* devices.
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*/
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void acpi_enable_wakeup_devices(u8 sleep_state)
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{
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struct list_head *node, *next;
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list_for_each_safe(node, next, &acpi_wakeup_device_list) {
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struct acpi_device *dev =
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container_of(node, struct acpi_device, wakeup_list);
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if (!dev->wakeup.flags.valid
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|| sleep_state > (u32) dev->wakeup.sleep_state
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|| !(device_may_wakeup(&dev->dev)
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|| dev->wakeup.prepare_count))
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continue;
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if (device_may_wakeup(&dev->dev))
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acpi_enable_wakeup_device_power(dev, sleep_state);
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/* The wake-up power should have been enabled already. */
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acpi_set_gpe_wake_mask(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
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ACPI_GPE_ENABLE);
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}
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}
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/**
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* acpi_disable_wakeup_devices - Disable devices' wakeup capability.
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* @sleep_state: ACPI system sleep state.
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*/
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void acpi_disable_wakeup_devices(u8 sleep_state)
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{
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struct list_head *node, *next;
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list_for_each_safe(node, next, &acpi_wakeup_device_list) {
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struct acpi_device *dev =
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container_of(node, struct acpi_device, wakeup_list);
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if (!dev->wakeup.flags.valid
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|| sleep_state > (u32) dev->wakeup.sleep_state
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|| !(device_may_wakeup(&dev->dev)
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|| dev->wakeup.prepare_count))
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continue;
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acpi_set_gpe_wake_mask(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
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ACPI_GPE_DISABLE);
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if (device_may_wakeup(&dev->dev))
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acpi_disable_wakeup_device_power(dev);
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}
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}
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int __init acpi_wakeup_device_init(void)
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{
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struct list_head *node, *next;
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mutex_lock(&acpi_device_lock);
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list_for_each_safe(node, next, &acpi_wakeup_device_list) {
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struct acpi_device *dev = container_of(node,
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struct acpi_device,
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wakeup_list);
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if (device_can_wakeup(&dev->dev)) {
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/* Button GPEs are supposed to be always enabled. */
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acpi_enable_gpe(dev->wakeup.gpe_device,
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dev->wakeup.gpe_number);
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device_set_wakeup_enable(&dev->dev, true);
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}
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}
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mutex_unlock(&acpi_device_lock);
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return 0;
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}
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