static void acpi_processor_remove(struct acpi_device *device)
{
struct acpi_processor *pr;
if (!device || !acpi_driver_data(device))
return;
pr = acpi_driver_data(device);
if (pr->id >= nr_cpu_ids)
goto out;
/*
* The only reason why we ever get here is CPU hot-removal. The CPU is
* already offline and the ACPI device removal locking prevents it from
* being put back online at this point.
*
* Unbind the driver from the processor device and detach it from the
* ACPI companion object.
*/
device_release_driver(pr->dev);
acpi_unbind_one(pr->dev);
/* Clean up. */
per_cpu(processor_device_array, pr->id) = NULL;
per_cpu(processors, pr->id) = NULL;
cpu_maps_update_begin();
cpu_hotplug_begin();
/* Remove the CPU. */
arch_unregister_cpu(pr->id);
acpi_unmap_lsapic(pr->id);
cpu_hotplug_done();
cpu_maps_update_done();
try_offline_node(cpu_to_node(pr->id));
out:
free_cpumask_var(pr->throttling.shared_cpu_map);
kfree(pr);
}
static int toshiba_acpi_suspend(struct acpi_device *acpi_dev,
pm_message_t state)
{
struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
u32 result;
if (dev->hotkey_dev)
hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result);
return 0;
}
static int acpi_lid_input_open(struct input_dev *input)
{
struct acpi_device *device = input_get_drvdata(input);
struct acpi_button *button = acpi_driver_data(device);
button->last_state = !!acpi_lid_evaluate_state(device);
button->last_time = ktime_get();
acpi_lid_initialize_state(device);
return 0;
}
int
acpi_power_remove (
struct acpi_device *device,
int type)
{
struct acpi_power_resource *resource = NULL;
ACPI_FUNCTION_TRACE("acpi_power_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
resource = (struct acpi_power_resource *) acpi_driver_data(device);
acpi_power_remove_fs(device);
kfree(resource);
return_VALUE(0);
}
static int acpi_container_remove(struct acpi_device *device, int type)
{
acpi_status status = AE_OK;
struct acpi_container *pc = NULL;
pc = (struct acpi_container *)acpi_driver_data(device);
if (pc)
kfree(pc);
return status;
}
int
acpi_fan_remove (
struct acpi_device *device,
int type)
{
struct acpi_fan *fan = NULL;
ACPI_FUNCTION_TRACE("acpi_fan_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
fan = (struct acpi_fan *) acpi_driver_data(device);
acpi_fan_remove_fs(device);
kfree(fan);
return_VALUE(0);
}
static int acpi_serial_add(struct acpi_device *device)
{
struct serial_private *priv;
acpi_status status;
struct serial_struct serial_req;
int result;
memset(&serial_req, 0, sizeof(serial_req));
priv = kmalloc(sizeof(struct serial_private), GFP_KERNEL);
if (!priv) {
result = -ENOMEM;
goto fail;
}
memset(priv, 0, sizeof(*priv));
status = acpi_walk_resources(device->handle, METHOD_NAME__CRS,
acpi_serial_resource, &serial_req);
if (ACPI_FAILURE(status)) {
result = -ENODEV;
goto fail;
}
if (serial_req.iomem_base)
priv->iomem_base = serial_req.iomem_base;
else if (!serial_req.port) {
printk(KERN_ERR "%s: no iomem or port address in %s _CRS\n",
__FUNCTION__, device->pnp.bus_id);
result = -ENODEV;
goto fail;
}
serial_req.baud_base = BASE_BAUD;
serial_req.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_RESOURCES;
priv->line = register_serial(&serial_req);
if (priv->line < 0) {
printk(KERN_WARNING "Couldn't register serial port %s: %d\n",
device->pnp.bus_id, priv->line);
result = -ENODEV;
goto fail;
}
acpi_driver_data(device) = priv;
return 0;
fail:
if (serial_req.iomem_base)
iounmap(serial_req.iomem_base);
kfree(priv);
return result;
}
static int acpi_battery_remove(struct acpi_device *device, int type)
{
acpi_status status = 0;
struct acpi_battery *battery = NULL;
if (!device || !acpi_driver_data(device))
return -EINVAL;
battery = (struct acpi_battery *)acpi_driver_data(device);
status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY,
acpi_battery_notify);
acpi_battery_remove_fs(device);
kfree(battery);
return 0;
}
static int toshiba_haps_suspend(struct device *device)
{
struct toshiba_haps_dev *haps;
int ret;
haps = acpi_driver_data(to_acpi_device(device));
/* Deactivate the protection on suspend */
ret = toshiba_haps_protection_level(haps->acpi_dev->handle, 0);
return ret;
}
static int
acpi_thermal_remove (
struct acpi_device *device,
int type)
{
acpi_status status = AE_OK;
struct acpi_thermal *tz = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
tz = (struct acpi_thermal *) acpi_driver_data(device);
if (timer_pending(&(tz->timer)))
del_timer(&(tz->timer));
status = acpi_remove_notify_handler(tz->handle,
ACPI_DEVICE_NOTIFY, acpi_thermal_notify);
if (ACPI_FAILURE(status))
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error removing notify handler\n"));
/* Terminate policy */
if (tz->trips.passive.flags.valid
&& tz->trips.passive.flags.enabled) {
tz->trips.passive.flags.enabled = 0;
acpi_thermal_passive(tz);
}
if (tz->trips.active[0].flags.valid
&& tz->trips.active[0].flags.enabled) {
tz->trips.active[0].flags.enabled = 0;
acpi_thermal_active(tz);
}
acpi_thermal_remove_fs(device);
return_VALUE(0);
}
static int acpi_processor_add_fs(struct acpi_device *device)
{
struct proc_dir_entry *entry = NULL;
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_processor_dir);
if (!acpi_device_dir(device))
return -ENODEV;
}
acpi_device_dir(device)->owner = THIS_MODULE;
/* 'info' [R] */
entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO,
S_IRUGO, acpi_device_dir(device),
&acpi_processor_info_fops,
acpi_driver_data(device));
if (!entry)
return -EIO;
/* 'throttling' [R/W] */
entry = proc_create_data(ACPI_PROCESSOR_FILE_THROTTLING,
S_IFREG | S_IRUGO | S_IWUSR,
acpi_device_dir(device),
&acpi_processor_throttling_fops,
acpi_driver_data(device));
if (!entry)
return -EIO;
/* 'limit' [R/W] */
entry = proc_create_data(ACPI_PROCESSOR_FILE_LIMIT,
S_IFREG | S_IRUGO | S_IWUSR,
acpi_device_dir(device),
&acpi_processor_limit_fops,
acpi_driver_data(device));
if (!entry)
return -EIO;
return 0;
}
static int acpi_processor_remove(struct acpi_device *device, int type)
{
struct acpi_processor *pr = NULL;
if (!device || !acpi_driver_data(device))
return -EINVAL;
pr = acpi_driver_data(device);
if (pr->id >= nr_cpu_ids)
goto free;
if (type == ACPI_BUS_REMOVAL_EJECT) {
if (acpi_processor_handle_eject(pr))
return -EINVAL;
}
acpi_processor_power_exit(pr, device);
sysfs_remove_link(&device->dev.kobj, "sysdev");
acpi_processor_remove_fs(device);
if (pr->cdev) {
sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
sysfs_remove_link(&pr->cdev->device.kobj, "device");
thermal_cooling_device_unregister(pr->cdev);
pr->cdev = NULL;
}
per_cpu(processors, pr->id) = NULL;
per_cpu(processor_device_array, pr->id) = NULL;
free:
free_cpumask_var(pr->throttling.shared_cpu_map);
kfree(pr);
return 0;
}
static int
acpi_battery_add (
struct acpi_device *device)
{
int result = 0;
acpi_status status = 0;
struct acpi_battery *battery = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_add");
if (!device)
return_VALUE(-EINVAL);
battery = kmalloc(sizeof(struct acpi_battery), GFP_KERNEL);
if (!battery)
return_VALUE(-ENOMEM);
memset(battery, 0, sizeof(struct acpi_battery));
battery->handle = device->handle;
strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
acpi_driver_data(device) = battery;
result = acpi_battery_check(battery);
if (result)
goto end;
result = acpi_battery_add_fs(device);
if (result)
goto end;
status = acpi_install_notify_handler(battery->handle,
ACPI_DEVICE_NOTIFY, acpi_battery_notify, battery);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error installing notify handler\n"));
result = -ENODEV;
goto end;
}
printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n",
ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
device->status.battery_present?"present":"absent");
end:
if (result) {
acpi_battery_remove_fs(device);
kfree(battery);
}
return_VALUE(result);
}
int
acpi_ac_add (
struct acpi_device *device)
{
int result = 0;
acpi_status status = AE_OK;
struct acpi_ac *ac = NULL;
ACPI_FUNCTION_TRACE("acpi_ac_add");
if (!device)
return_VALUE(-EINVAL);
ac = kmalloc(sizeof(struct acpi_ac), GFP_KERNEL);
if (!ac)
return_VALUE(-ENOMEM);
memset(ac, 0, sizeof(struct acpi_ac));
ac->handle = device->handle;
sprintf(acpi_device_name(device), "%s", ACPI_AC_DEVICE_NAME);
sprintf(acpi_device_class(device), "%s", ACPI_AC_CLASS);
acpi_driver_data(device) = ac;
result = acpi_ac_get_state(ac);
if (result)
goto end;
result = acpi_ac_add_fs(device);
if (result)
goto end;
status = acpi_install_notify_handler(ac->handle,
ACPI_DEVICE_NOTIFY, acpi_ac_notify, ac);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error installing notify handler\n"));
result = -ENODEV;
goto end;
}
printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
acpi_device_name(device), acpi_device_bid(device),
ac->state?"on-line":"off-line");
end:
if (result) {
acpi_ac_remove_fs(device);
kfree(ac);
}
return_VALUE(result);
}
static int
acpi_thermal_add (
struct acpi_device *device)
{
int result = 0;
acpi_status status = AE_OK;
struct acpi_thermal *tz = NULL;
ACPI_FUNCTION_TRACE("acpi_thermal_add");
if (!device)
return_VALUE(-EINVAL);
tz = kmalloc(sizeof(struct acpi_thermal), MEMF_KERNEL);
if (!tz)
return_VALUE(-ENOMEM);
memset(tz, 0, sizeof(struct acpi_thermal));
tz->handle = device->handle;
strcpy(tz->name, device->pnp.bus_id);
strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
acpi_driver_data(device) = tz;
result = acpi_thermal_get_info(tz);
if (result)
goto end;
tz->timer = create_timer();
acpi_thermal_check(tz);
status = acpi_install_notify_handler(tz->handle,
ACPI_DEVICE_NOTIFY, acpi_thermal_notify, tz);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error installing notify handler\n"));
result = -ENODEV;
goto end;
}
printk("ACPI: %s [%s] (%ld C)\n",
acpi_device_name(device), acpi_device_bid(device),
KELVIN_TO_CELSIUS(tz->temperature));
end:
if (result) {
kfree(tz);
}
return_VALUE(result);
}
static int acpi_fan_remove(struct acpi_device *device, int type)
{
struct thermal_cooling_device *cdev = acpi_driver_data(device);
if (!device || !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;
}
static void asus_wireless_notify(struct acpi_device *adev, u32 event)
{
struct asus_wireless_data *data = acpi_driver_data(adev);
dev_dbg(&adev->dev, "event=%#x\n", event);
if (event != 0x88) {
dev_notice(&adev->dev, "Unknown ASHS event: %#x\n", event);
return;
}
input_report_key(data->idev, KEY_RFKILL, 1);
input_report_key(data->idev, KEY_RFKILL, 0);
input_sync(data->idev);
}
static int
acpi_button_remove (struct acpi_device *device, int type)
{
acpi_status status = 0;
struct acpi_button *button = NULL;
ACPI_FUNCTION_TRACE("acpi_button_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
button = acpi_driver_data(device);
/* Unregister for device notifications. */
switch (button->type) {
case ACPI_BUTTON_TYPE_POWERF:
status = acpi_remove_fixed_event_handler(
ACPI_EVENT_POWER_BUTTON, acpi_button_notify_fixed);
break;
case ACPI_BUTTON_TYPE_SLEEPF:
status = acpi_remove_fixed_event_handler(
ACPI_EVENT_SLEEP_BUTTON, acpi_button_notify_fixed);
break;
default:
status = acpi_remove_notify_handler(button->handle,
ACPI_DEVICE_NOTIFY, acpi_button_notify);
break;
}
if (ACPI_FAILURE(status))
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error removing notify handler\n"));
acpi_button_remove_fs(device);
kfree(button);
return_VALUE(0);
}
static int acpi_button_resume(struct device *dev)
{
struct acpi_device *device = to_acpi_device(dev);
struct acpi_button *button = acpi_driver_data(device);
button->suspended = false;
if (button->type == ACPI_BUTTON_TYPE_LID && button->input->users) {
button->last_state = !!acpi_lid_evaluate_state(device);
button->last_time = ktime_get();
acpi_lid_initialize_state(device);
}
return 0;
}
static int
processor_get_max_state(struct thermal_cooling_device *cdev,
unsigned long *state)
{
struct acpi_device *device = cdev->devdata;
struct acpi_processor *pr = acpi_driver_data(device);
if (!device || !pr)
return -EINVAL;
*state = acpi_processor_max_state(pr);
return 0;
}
struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
{
struct acpi_pci_root *root;
struct acpi_device *device;
if (acpi_bus_get_device(handle, &device) ||
acpi_match_device_ids(device, root_device_ids))
return NULL;
root = acpi_driver_data(device);
return root;
}
static int acpi_processor_remove(struct acpi_device *device, int type)
{
acpi_status status = AE_OK;
struct acpi_processor *pr = NULL;
ACPI_FUNCTION_TRACE("acpi_processor_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
pr = (struct acpi_processor *)acpi_driver_data(device);
if (pr->id >= NR_CPUS) {
kfree(pr);
return_VALUE(0);
}
if (type == ACPI_BUS_REMOVAL_EJECT) {
if (acpi_processor_handle_eject(pr))
return_VALUE(-EINVAL);
}
acpi_processor_power_exit(pr, device);
status = acpi_remove_notify_handler(pr->handle, ACPI_DEVICE_NOTIFY,
acpi_processor_notify);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Error removing notify handler\n"));
}
acpi_processor_remove_fs(device);
processors[pr->id] = NULL;
kfree(pr);
return_VALUE(0);
}
static void __ref acpi_processor_hotplug_notify(acpi_handle handle,
u32 event, void *data)
{
struct acpi_processor *pr;
struct acpi_device *device = NULL;
int result;
switch (event) {
case ACPI_NOTIFY_BUS_CHECK:
case ACPI_NOTIFY_DEVICE_CHECK:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Processor driver received %s event\n",
(event == ACPI_NOTIFY_BUS_CHECK) ?
"ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK"));
if (!is_processor_present(handle))
break;
if (acpi_bus_get_device(handle, &device)) {
result = acpi_processor_device_add(handle, &device);
if (result)
printk(KERN_ERR PREFIX
"Unable to add the device\n");
break;
}
break;
case ACPI_NOTIFY_EJECT_REQUEST:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"received ACPI_NOTIFY_EJECT_REQUEST\n"));
if (acpi_bus_get_device(handle, &device)) {
printk(KERN_ERR PREFIX
"Device don't exist, dropping EJECT\n");
break;
}
pr = acpi_driver_data(device);
if (!pr) {
printk(KERN_ERR PREFIX
"Driver data is NULL, dropping EJECT\n");
return;
}
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Unsupported event [0x%x]\n", event));
break;
}
return;
}
static int xen_acpi_processor_remove(struct acpi_device *device)
{
struct acpi_processor *pr;
if (!device)
return -EINVAL;
pr = acpi_driver_data(device);
if (!pr)
return -EINVAL;
kfree(pr);
return 0;
}
int ec_write(u8 addr, u8 val)
{
struct acpi_ec *ec;
int err;
if (!first_ec)
return -ENODEV;
ec = acpi_driver_data(first_ec);
err = acpi_ec_write(ec, addr, val);
return err;
}
int ec_transaction(u8 command,
const u8 * wdata, unsigned wdata_len,
u8 * rdata, unsigned rdata_len)
{
struct acpi_ec *ec;
if (!first_ec)
return -ENODEV;
ec = acpi_driver_data(first_ec);
return acpi_ec_transaction(ec, command, wdata,
wdata_len, rdata, rdata_len);
}
static int asus_acpi_remove(struct acpi_device *device, int type)
{
struct asus_laptop *asus = acpi_driver_data(device);
asus_backlight_exit(asus);
asus_rfkill_exit(asus);
asus_led_exit(asus);
asus_input_exit(asus);
asus_platform_exit(asus);
kfree(asus->name);
kfree(asus);
return 0;
}
static void acpi_cpufreq_add_file(struct acpi_processor *pr)
{
struct acpi_device *device = NULL;
if (acpi_bus_get_device(pr->handle, &device))
return;
/* add file 'performance' [R/W] */
proc_create_data(ACPI_PROCESSOR_FILE_PERFORMANCE, S_IFREG | S_IRUGO,
acpi_device_dir(device),
&acpi_processor_perf_fops, acpi_driver_data(device));
return;
}
static int acpi_power_remove(struct acpi_device *device, int type)
{
struct acpi_power_resource *resource;
if (!device)
return -EINVAL;
resource = acpi_driver_data(device);
if (!resource)
return -EINVAL;
kfree(resource);
return 0;
}
static int
processor_get_cur_state(struct thermal_cooling_device *cdev,
unsigned long *cur_state)
{
struct acpi_device *device = cdev->devdata;
struct acpi_processor *pr = acpi_driver_data(device);
if (!device || !pr)
return -EINVAL;
*cur_state = cpufreq_get_cur_state(pr->id);
if (pr->flags.throttling)
*cur_state += pr->throttling.state;
return 0;
}
