4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/slab.h>
23 #include <linux/acpi.h>
25 MODULE_LICENSE("GPL");
27 static ssize_t irst_show_wakeup_events(struct device *dev,
28 struct device_attribute *attr,
31 struct acpi_device *acpi;
32 unsigned long long value;
35 acpi = to_acpi_device(dev);
37 status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value);
38 if (!ACPI_SUCCESS(status))
41 return sprintf(buf, "%lld\n", value);
44 static ssize_t irst_store_wakeup_events(struct device *dev,
45 struct device_attribute *attr,
46 const char *buf, size_t count)
48 struct acpi_device *acpi;
53 acpi = to_acpi_device(dev);
55 error = kstrtoul(buf, 0, &value);
60 status = acpi_execute_simple_method(acpi->handle, "SFFS", value);
62 if (!ACPI_SUCCESS(status))
68 static struct device_attribute irst_wakeup_attr = {
69 .attr = { .name = "wakeup_events", .mode = 0600 },
70 .show = irst_show_wakeup_events,
71 .store = irst_store_wakeup_events
74 static ssize_t irst_show_wakeup_time(struct device *dev,
75 struct device_attribute *attr, char *buf)
77 struct acpi_device *acpi;
78 unsigned long long value;
81 acpi = to_acpi_device(dev);
83 status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value);
84 if (!ACPI_SUCCESS(status))
87 return sprintf(buf, "%lld\n", value);
90 static ssize_t irst_store_wakeup_time(struct device *dev,
91 struct device_attribute *attr,
92 const char *buf, size_t count)
94 struct acpi_device *acpi;
99 acpi = to_acpi_device(dev);
101 error = kstrtoul(buf, 0, &value);
106 status = acpi_execute_simple_method(acpi->handle, "SFTV", value);
108 if (!ACPI_SUCCESS(status))
114 static struct device_attribute irst_timeout_attr = {
115 .attr = { .name = "wakeup_time", .mode = 0600 },
116 .show = irst_show_wakeup_time,
117 .store = irst_store_wakeup_time
120 static int irst_add(struct acpi_device *acpi)
124 error = device_create_file(&acpi->dev, &irst_timeout_attr);
128 error = device_create_file(&acpi->dev, &irst_wakeup_attr);
135 device_remove_file(&acpi->dev, &irst_timeout_attr);
140 static int irst_remove(struct acpi_device *acpi)
142 device_remove_file(&acpi->dev, &irst_wakeup_attr);
143 device_remove_file(&acpi->dev, &irst_timeout_attr);
148 static const struct acpi_device_id irst_ids[] = {
153 static struct acpi_driver irst_driver = {
154 .owner = THIS_MODULE,
155 .name = "intel_rapid_start",
156 .class = "intel_rapid_start",
160 .remove = irst_remove,
164 module_acpi_driver(irst_driver);
166 MODULE_DEVICE_TABLE(acpi, irst_ids);