#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+#define PREFIX "ACPI: "
+
#define ACPI_THERMAL_CLASS "thermal_zone"
#define ACPI_THERMAL_DEVICE_NAME "Thermal Zone"
#define ACPI_THERMAL_FILE_STATE "state"
static int acpi_thermal_add(struct acpi_device *device);
static int acpi_thermal_remove(struct acpi_device *device, int type);
static int acpi_thermal_resume(struct acpi_device *device);
+static void acpi_thermal_notify(struct acpi_device *device, u32 event);
static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file);
static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file);
static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file);
.add = acpi_thermal_add,
.remove = acpi_thermal_remove,
.resume = acpi_thermal_resume,
+ .notify = acpi_thermal_notify,
},
};
thermal_zone_device_register("acpitz", trips, tz,
&acpi_thermal_zone_ops,
0, 0, 0,
- tz->polling_frequency);
+ tz->polling_frequency*100);
if (IS_ERR(tz->thermal_zone))
return -ENODEV;
Driver Interface
-------------------------------------------------------------------------- */
-static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
+static void acpi_thermal_notify(struct acpi_device *device, u32 event)
{
- struct acpi_thermal *tz = data;
- struct acpi_device *device = NULL;
+ struct acpi_thermal *tz = acpi_driver_data(device);
if (!tz)
return;
- device = tz->device;
-
switch (event) {
case ACPI_THERMAL_NOTIFY_TEMPERATURE:
acpi_thermal_check(tz);
"Unsupported event [0x%x]\n", event));
break;
}
-
- return;
}
static int acpi_thermal_get_info(struct acpi_thermal *tz)
static int acpi_thermal_add(struct acpi_device *device)
{
int result = 0;
- acpi_status status = AE_OK;
struct acpi_thermal *tz = NULL;
if (result)
goto unregister_thermal_zone;
- status = acpi_install_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_thermal_notify, tz);
- if (ACPI_FAILURE(status)) {
- result = -ENODEV;
- goto remove_fs;
- }
-
printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n",
acpi_device_name(device), acpi_device_bid(device),
KELVIN_TO_CELSIUS(tz->temperature));
goto end;
-remove_fs:
- acpi_thermal_remove_fs(device);
unregister_thermal_zone:
thermal_zone_device_unregister(tz->thermal_zone);
free_memory:
static int acpi_thermal_remove(struct acpi_device *device, int type)
{
- acpi_status status = AE_OK;
struct acpi_thermal *tz = NULL;
if (!device || !acpi_driver_data(device))
tz = acpi_driver_data(device);
- status = acpi_remove_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_thermal_notify);
-
acpi_thermal_remove_fs(device);
acpi_thermal_unregister_thermal_zone(tz);
mutex_destroy(&tz->lock);