summaryrefslogtreecommitdiff
path: root/drivers/misc/tc1100-wmi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/misc/tc1100-wmi.c')
-rw-r--r--drivers/misc/tc1100-wmi.c290
1 files changed, 0 insertions, 290 deletions
diff --git a/drivers/misc/tc1100-wmi.c b/drivers/misc/tc1100-wmi.c
deleted file mode 100644
index f25e4c974dcf..000000000000
--- a/drivers/misc/tc1100-wmi.c
+++ /dev/null
@@ -1,290 +0,0 @@
-/*
- * HP Compaq TC1100 Tablet WMI Extras Driver
- *
- * Copyright (C) 2007 Carlos Corbacho <carlos@strangeworlds.co.uk>
- * Copyright (C) 2004 Jamey Hicks <jamey.hicks@hp.com>
- * 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 <acpi/acpi.h>
-#include <acpi/actypes.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-#include <linux/platform_device.h>
-
-#define GUID "C364AC71-36DB-495A-8494-B439D472A505"
-
-#define TC1100_INSTANCE_WIRELESS 1
-#define TC1100_INSTANCE_JOGDIAL 2
-
-#define TC1100_LOGPREFIX "tc1100-wmi: "
-#define TC1100_INFO KERN_INFO TC1100_LOGPREFIX
-
-MODULE_AUTHOR("Jamey Hicks, Carlos Corbacho");
-MODULE_DESCRIPTION("HP Compaq TC1100 Tablet WMI Extras");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("wmi:C364AC71-36DB-495A-8494-B439D472A505");
-
-static int tc1100_probe(struct platform_device *device);
-static int tc1100_remove(struct platform_device *device);
-static int tc1100_suspend(struct platform_device *device, pm_message_t state);
-static int tc1100_resume(struct platform_device *device);
-
-static struct platform_driver tc1100_driver = {
- .driver = {
- .name = "tc1100-wmi",
- .owner = THIS_MODULE,
- },
- .probe = tc1100_probe,
- .remove = tc1100_remove,
- .suspend = tc1100_suspend,
- .resume = tc1100_resume,
-};
-
-static struct platform_device *tc1100_device;
-
-struct tc1100_data {
- u32 wireless;
- u32 jogdial;
-};
-
-static struct tc1100_data suspend_data;
-
-/* --------------------------------------------------------------------------
- Device Management
- -------------------------------------------------------------------------- */
-
-static int get_state(u32 *out, u8 instance)
-{
- u32 tmp;
- acpi_status status;
- struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
-
- if (!out)
- return -EINVAL;
-
- if (instance > 2)
- return -ENODEV;
-
- status = wmi_query_block(GUID, instance, &result);
- if (ACPI_FAILURE(status))
- return -ENODEV;
-
- obj = (union acpi_object *) result.pointer;
- if (obj && obj->type == ACPI_TYPE_BUFFER &&
- obj->buffer.length == sizeof(u32)) {
- tmp = *((u32 *) obj->buffer.pointer);
- } else {
- tmp = 0;
- }
-
- if (result.length > 0 && result.pointer)
- kfree(result.pointer);
-
- switch (instance) {
- case TC1100_INSTANCE_WIRELESS:
- *out = (tmp == 3) ? 1 : 0;
- return 0;
- case TC1100_INSTANCE_JOGDIAL:
- *out = (tmp == 1) ? 1 : 0;
- return 0;
- default:
- return -ENODEV;
- }
-}
-
-static int set_state(u32 *in, u8 instance)
-{
- u32 value;
- acpi_status status;
- struct acpi_buffer input;
-
- if (!in)
- return -EINVAL;
-
- if (instance > 2)
- return -ENODEV;
-
- switch (instance) {
- case TC1100_INSTANCE_WIRELESS:
- value = (*in) ? 1 : 2;
- break;
- case TC1100_INSTANCE_JOGDIAL:
- value = (*in) ? 0 : 1;
- break;
- default:
- return -ENODEV;
- }
-
- input.length = sizeof(u32);
- input.pointer = &value;
-
- status = wmi_set_block(GUID, instance, &input);
- if (ACPI_FAILURE(status))
- return -ENODEV;
-
- return 0;
-}
-
-/* --------------------------------------------------------------------------
- FS Interface (/sys)
- -------------------------------------------------------------------------- */
-
-/*
- * Read/ write bool sysfs macro
- */
-#define show_set_bool(value, instance) \
-static ssize_t \
-show_bool_##value(struct device *dev, struct device_attribute *attr, \
- char *buf) \
-{ \
- u32 result; \
- acpi_status status = get_state(&result, instance); \
- if (ACPI_SUCCESS(status)) \
- return sprintf(buf, "%d\n", result); \
- return sprintf(buf, "Read error\n"); \
-} \
-\
-static ssize_t \
-set_bool_##value(struct device *dev, struct device_attribute *attr, \
- const char *buf, size_t count) \
-{ \
- u32 tmp = simple_strtoul(buf, NULL, 10); \
- acpi_status status = set_state(&tmp, instance); \
- if (ACPI_FAILURE(status)) \
- return -EINVAL; \
- return count; \
-} \
-static DEVICE_ATTR(value, S_IWUGO | S_IRUGO | S_IWUSR, \
- show_bool_##value, set_bool_##value);
-
-show_set_bool(wireless, TC1100_INSTANCE_WIRELESS);
-show_set_bool(jogdial, TC1100_INSTANCE_JOGDIAL);
-
-static void remove_fs(void)
-{
- device_remove_file(&tc1100_device->dev, &dev_attr_wireless);
- device_remove_file(&tc1100_device->dev, &dev_attr_jogdial);
-}
-
-static int add_fs(void)
-{
- int ret;
-
- ret = device_create_file(&tc1100_device->dev, &dev_attr_wireless);
- if (ret)
- goto add_sysfs_error;
-
- ret = device_create_file(&tc1100_device->dev, &dev_attr_jogdial);
- if (ret)
- goto add_sysfs_error;
-
- return ret;
-
-add_sysfs_error:
- remove_fs();
- return ret;
-}
-
-/* --------------------------------------------------------------------------
- Driver Model
- -------------------------------------------------------------------------- */
-
-static int tc1100_probe(struct platform_device *device)
-{
- int result = 0;
-
- result = add_fs();
- return result;
-}
-
-
-static int tc1100_remove(struct platform_device *device)
-{
- remove_fs();
- return 0;
-}
-
-static int tc1100_suspend(struct platform_device *dev, pm_message_t state)
-{
- int ret;
-
- ret = get_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS);
- if (ret)
- return ret;
-
- ret = get_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL);
- if (ret)
- return ret;
-
- return ret;
-}
-
-static int tc1100_resume(struct platform_device *dev)
-{
- int ret;
-
- ret = set_state(&suspend_data.wireless, TC1100_INSTANCE_WIRELESS);
- if (ret)
- return ret;
-
- ret = set_state(&suspend_data.jogdial, TC1100_INSTANCE_JOGDIAL);
- if (ret)
- return ret;
-
- return ret;
-}
-
-static int __init tc1100_init(void)
-{
- int result = 0;
-
- if (!wmi_has_guid(GUID))
- return -ENODEV;
-
- result = platform_driver_register(&tc1100_driver);
- if (result)
- return result;
-
- tc1100_device = platform_device_alloc("tc1100-wmi", -1);
- platform_device_add(tc1100_device);
-
- printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras loaded\n");
-
- return result;
-}
-
-static void __exit tc1100_exit(void)
-{
- platform_device_del(tc1100_device);
- platform_driver_unregister(&tc1100_driver);
-
- printk(TC1100_INFO "HP Compaq TC1100 Tablet WMI Extras unloaded\n");
-}
-
-module_init(tc1100_init);
-module_exit(tc1100_exit);
generated by cgit (git 2.34.1) at 2025-11-04 04:21:13 +0000