#include <linux/kthread.h>
#include <acpi/acpi_drivers.h>
-#include <acpi/acinterp.h> /* for acpi_ex_eisa_id_to_string() */
+
+#include "internal.h"
#define _COMPONENT ACPI_BUS_COMPONENT
ACPI_MODULE_NAME("scan");
static LIST_HEAD(acpi_device_list);
static LIST_HEAD(acpi_bus_id_list);
-DEFINE_SPINLOCK(acpi_device_lock);
+DEFINE_MUTEX(acpi_device_lock);
LIST_HEAD(acpi_wakeup_device_list);
struct acpi_device_bus_id{
return 0;
}
+static void acpi_device_notify(acpi_handle handle, u32 event, void *data)
+{
+ struct acpi_device *device = data;
+
+ device->driver->ops.notify(device, event);
+}
+
+static acpi_status acpi_device_notify_fixed(void *data)
+{
+ struct acpi_device *device = data;
+
+ acpi_device_notify(device->handle, ACPI_FIXED_HARDWARE_EVENT, device);
+ return AE_OK;
+}
+
+static int acpi_device_install_notify_handler(struct acpi_device *device)
+{
+ acpi_status status;
+ char *hid;
+
+ hid = acpi_device_hid(device);
+ if (!strcmp(hid, ACPI_BUTTON_HID_POWERF))
+ status =
+ acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
+ acpi_device_notify_fixed,
+ device);
+ else if (!strcmp(hid, ACPI_BUTTON_HID_SLEEPF))
+ status =
+ acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
+ acpi_device_notify_fixed,
+ device);
+ else
+ status = acpi_install_notify_handler(device->handle,
+ ACPI_DEVICE_NOTIFY,
+ acpi_device_notify,
+ device);
+
+ if (ACPI_FAILURE(status))
+ return -EINVAL;
+ return 0;
+}
+
+static void acpi_device_remove_notify_handler(struct acpi_device *device)
+{
+ if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF))
+ acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
+ acpi_device_notify_fixed);
+ else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF))
+ acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
+ acpi_device_notify_fixed);
+ else
+ acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
+ acpi_device_notify);
+}
+
static int acpi_bus_driver_init(struct acpi_device *, struct acpi_driver *);
static int acpi_start_single_object(struct acpi_device *);
static int acpi_device_probe(struct device * dev)
if (!ret) {
if (acpi_dev->bus_ops.acpi_op_start)
acpi_start_single_object(acpi_dev);
+
+ if (acpi_drv->ops.notify) {
+ ret = acpi_device_install_notify_handler(acpi_dev);
+ if (ret) {
+ if (acpi_drv->ops.stop)
+ acpi_drv->ops.stop(acpi_dev,
+ acpi_dev->removal_type);
+ if (acpi_drv->ops.remove)
+ acpi_drv->ops.remove(acpi_dev,
+ acpi_dev->removal_type);
+ return ret;
+ }
+ }
+
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Found driver [%s] for device [%s]\n",
acpi_drv->name, acpi_dev->pnp.bus_id));
struct acpi_driver *acpi_drv = acpi_dev->driver;
if (acpi_drv) {
+ if (acpi_drv->ops.notify)
+ acpi_device_remove_notify_handler(acpi_dev);
if (acpi_drv->ops.stop)
acpi_drv->ops.stop(acpi_dev, acpi_dev->removal_type);
if (acpi_drv->ops.remove)
return 0;
}
-static void acpi_device_shutdown(struct device *dev)
-{
- struct acpi_device *acpi_dev = to_acpi_device(dev);
- struct acpi_driver *acpi_drv = acpi_dev->driver;
-
- if (acpi_drv && acpi_drv->ops.shutdown)
- acpi_drv->ops.shutdown(acpi_dev);
-
- return ;
-}
-
struct bus_type acpi_bus_type = {
.name = "acpi",
.suspend = acpi_device_suspend,
.resume = acpi_device_resume,
- .shutdown = acpi_device_shutdown,
.match = acpi_bus_match,
.probe = acpi_device_probe,
.remove = acpi_device_remove,
*/
INIT_LIST_HEAD(&device->children);
INIT_LIST_HEAD(&device->node);
- INIT_LIST_HEAD(&device->g_list);
INIT_LIST_HEAD(&device->wakeup_list);
new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL);
return -ENOMEM;
}
- spin_lock(&acpi_device_lock);
+ mutex_lock(&acpi_device_lock);
/*
* Find suitable bus_id and instance number in acpi_bus_id_list
* If failed, create one and link it into acpi_bus_id_list
}
dev_set_name(&device->dev, "%s:%02x", acpi_device_bus_id->bus_id, acpi_device_bus_id->instance_no);
- if (device->parent) {
+ if (device->parent)
list_add_tail(&device->node, &device->parent->children);
- list_add_tail(&device->g_list, &device->parent->g_list);
- } else
- list_add_tail(&device->g_list, &acpi_device_list);
+
if (device->wakeup.flags.valid)
list_add_tail(&device->wakeup_list, &acpi_wakeup_device_list);
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
if (device->parent)
device->dev.parent = &parent->dev;
device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
return 0;
end:
- spin_lock(&acpi_device_lock);
- if (device->parent) {
+ mutex_lock(&acpi_device_lock);
+ if (device->parent)
list_del(&device->node);
- list_del(&device->g_list);
- } else
- list_del(&device->g_list);
list_del(&device->wakeup_list);
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
return result;
}
static void acpi_device_unregister(struct acpi_device *device, int type)
{
- spin_lock(&acpi_device_lock);
- if (device->parent) {
+ mutex_lock(&acpi_device_lock);
+ if (device->parent)
list_del(&device->node);
- list_del(&device->g_list);
- } else
- list_del(&device->g_list);
list_del(&device->wakeup_list);
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
acpi_detach_data(device->handle, acpi_bus_data_handler);
if (!acpi_match_device_ids(device, button_device_ids))
device->wakeup.flags.run_wake = 1;
- /*
- * Don't set Power button GPE as run_wake
- * if Fixed Power button is used
- */
- if (!strcmp(device->pnp.hardware_id, "PNP0C0C") &&
- !(acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON)) {
- device->wakeup.flags.run_wake = 0;
- device->wakeup.flags.valid = 0;
- }
-
end:
if (ACPI_FAILURE(status))
device->flags.wake_capable = 0;
hid = ACPI_POWER_HID;
break;
case ACPI_BUS_TYPE_PROCESSOR:
- hid = ACPI_PROCESSOR_HID;
+ hid = ACPI_PROCESSOR_OBJECT_HID;
break;
case ACPI_BUS_TYPE_SYSTEM:
hid = ACPI_SYSTEM_HID;
return result;
}
-
-static int __init acpi_scan_init(void)
+int __init acpi_scan_init(void)
{
int result;
struct acpi_bus_ops ops;
-
- if (acpi_disabled)
- return 0;
-
memset(&ops, 0, sizeof(ops));
ops.acpi_op_add = 1;
ops.acpi_op_start = 1;
Done:
return result;
}
-
-subsys_initcall(acpi_scan_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff