diff options
Diffstat (limited to 'drivers/acpi/fan.c')
| -rw-r--r-- | drivers/acpi/fan.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c deleted file mode 100644 index 5b02a0aa540c..000000000000 --- a/drivers/acpi/fan.c +++ /dev/null @@ -1,219 +0,0 @@ -/* - * acpi_fan.c - ACPI Fan Driver ($Revision: 29 $) - * - * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> - * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/types.h> -#include <asm/uaccess.h> -#include <linux/thermal.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - -#define PREFIX "ACPI: " - -#define ACPI_FAN_CLASS "fan" -#define ACPI_FAN_FILE_STATE "state" - -#define _COMPONENT ACPI_FAN_COMPONENT -ACPI_MODULE_NAME("fan"); - -MODULE_AUTHOR("Paul Diefenbaugh"); -MODULE_DESCRIPTION("ACPI Fan Driver"); -MODULE_LICENSE("GPL"); - -static int acpi_fan_add(struct acpi_device *device); -static int acpi_fan_remove(struct acpi_device *device); - -static const struct acpi_device_id fan_device_ids[] = { - {"PNP0C0B", 0}, - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, fan_device_ids); - -#ifdef CONFIG_PM_SLEEP -static int acpi_fan_suspend(struct device *dev); -static int acpi_fan_resume(struct device *dev); -#endif -static SIMPLE_DEV_PM_OPS(acpi_fan_pm, acpi_fan_suspend, acpi_fan_resume); - -static struct acpi_driver acpi_fan_driver = { - .name = "fan", - .class = ACPI_FAN_CLASS, - .ids = fan_device_ids, - .ops = { - .add = acpi_fan_add, - .remove = acpi_fan_remove, - }, - .drv.pm = &acpi_fan_pm, -}; - -/* thermal cooling device callbacks */ -static int fan_get_max_state(struct thermal_cooling_device *cdev, unsigned long - *state) -{ - /* ACPI fan device only support two states: ON/OFF */ - *state = 1; - return 0; -} - -static int fan_get_cur_state(struct thermal_cooling_device *cdev, unsigned long - *state) -{ - struct acpi_device *device = cdev->devdata; - int result; - int acpi_state = ACPI_STATE_D0; - - if (!device) - return -EINVAL; - - result = acpi_bus_update_power(device->handle, &acpi_state); - if (result) - return result; - - *state = (acpi_state == ACPI_STATE_D3 ? 0 : - (acpi_state == ACPI_STATE_D0 ? 1 : -1)); - return 0; -} - -static int -fan_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state) -{ - struct acpi_device *device = cdev->devdata; - int result; - - if (!device || (state != 0 && state != 1)) - return -EINVAL; - - result = acpi_bus_set_power(device->handle, - state ? ACPI_STATE_D0 : ACPI_STATE_D3); - - return result; -} - -static const struct thermal_cooling_device_ops fan_cooling_ops = { - .get_max_state = fan_get_max_state, - .get_cur_state = fan_get_cur_state, - .set_cur_state = fan_set_cur_state, -}; - -/* -------------------------------------------------------------------------- - Driver Interface - -------------------------------------------------------------------------- */ - -static int acpi_fan_add(struct acpi_device *device) -{ - int result = 0; - struct thermal_cooling_device *cdev; - - if (!device) - return -EINVAL; - - strcpy(acpi_device_name(device), "Fan"); - strcpy(acpi_device_class(device), ACPI_FAN_CLASS); - - result = acpi_bus_update_power(device->handle, NULL); - if (result) { - printk(KERN_ERR PREFIX "Setting initial power state\n"); - goto end; - } - - cdev = thermal_cooling_device_register("Fan", device, - &fan_cooling_ops); - if (IS_ERR(cdev)) { - result = PTR_ERR(cdev); - goto end; - } - - dev_dbg(&device->dev, "registered as cooling_device%d\n", cdev->id); - - device->driver_data = cdev; - result = sysfs_create_link(&device->dev.kobj, - &cdev->device.kobj, - "thermal_cooling"); - if (result) - dev_err(&device->dev, "Failed to create sysfs link " - "'thermal_cooling'\n"); - - result = sysfs_create_link(&cdev->device.kobj, - &device->dev.kobj, - "device"); - if (result) - dev_err(&device->dev, "Failed to create sysfs link " - "'device'\n"); - - printk(KERN_INFO PREFIX "%s [%s] (%s)\n", - acpi_device_name(device), acpi_device_bid(device), - !device->power.state ? "on" : "off"); - - end: - return result; -} - -static int acpi_fan_remove(struct acpi_device *device) -{ - struct thermal_cooling_device *cdev; - - if (!device) - return -EINVAL; - - cdev = acpi_driver_data(device); - if (!cdev) - return -EINVAL; - - sysfs_remove_link(&device->dev.kobj, "thermal_cooling"); - sysfs_remove_link(&cdev->device.kobj, "device"); - thermal_cooling_device_unregister(cdev); - - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int acpi_fan_suspend(struct device *dev) -{ - if (!dev) - return -EINVAL; - - acpi_bus_set_power(to_acpi_device(dev)->handle, ACPI_STATE_D0); - - return AE_OK; -} - -static int acpi_fan_resume(struct device *dev) -{ - int result; - - if (!dev) - return -EINVAL; - - result = acpi_bus_update_power(to_acpi_device(dev)->handle, NULL); - if (result) - printk(KERN_ERR PREFIX "Error updating fan power state\n"); - - return result; -} -#endif - -module_acpi_driver(acpi_fan_driver); |