1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
* Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/acpi.h>
MODULE_LICENSE("GPL");
static ssize_t irst_show_wakeup_events(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct acpi_device *acpi;
unsigned long long value;
acpi_status status;
acpi = to_acpi_device(dev);
status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
return sprintf(buf, "%lld\n", value);
}
static ssize_t irst_store_wakeup_events(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct acpi_device *acpi;
acpi_status status;
unsigned long value;
int error;
acpi = to_acpi_device(dev);
error = kstrtoul(buf, 0, &value);
if (error)
return error;
status = acpi_execute_simple_method(acpi->handle, "SFFS", value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
return count;
}
static struct device_attribute irst_wakeup_attr = {
.attr = { .name = "wakeup_events", .mode = 0600 },
.show = irst_show_wakeup_events,
.store = irst_store_wakeup_events
};
static ssize_t irst_show_wakeup_time(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct acpi_device *acpi;
unsigned long long value;
acpi_status status;
acpi = to_acpi_device(dev);
status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
return sprintf(buf, "%lld\n", value);
}
static ssize_t irst_store_wakeup_time(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct acpi_device *acpi;
acpi_status status;
unsigned long value;
int error;
acpi = to_acpi_device(dev);
error = kstrtoul(buf, 0, &value);
if (error)
return error;
status = acpi_execute_simple_method(acpi->handle, "SFTV", value);
if (!ACPI_SUCCESS(status))
return -EINVAL;
return count;
}
static struct device_attribute irst_timeout_attr = {
.attr = { .name = "wakeup_time", .mode = 0600 },
.show = irst_show_wakeup_time,
.store = irst_store_wakeup_time
};
static int irst_add(struct acpi_device *acpi)
{
int error = 0;
error = device_create_file(&acpi->dev, &irst_timeout_attr);
if (error)
goto out;
error = device_create_file(&acpi->dev, &irst_wakeup_attr);
if (error)
goto out_timeout;
return 0;
out_timeout:
device_remove_file(&acpi->dev, &irst_timeout_attr);
out:
return error;
}
static int irst_remove(struct acpi_device *acpi)
{
device_remove_file(&acpi->dev, &irst_wakeup_attr);
device_remove_file(&acpi->dev, &irst_timeout_attr);
return 0;
}
static const struct acpi_device_id irst_ids[] = {
{"INT3392", 0},
{"", 0}
};
static struct acpi_driver irst_driver = {
.owner = THIS_MODULE,
.name = "intel_rapid_start",
.class = "intel_rapid_start",
.ids = irst_ids,
.ops = {
.add = irst_add,
.remove = irst_remove,
},
};
module_acpi_driver(irst_driver);
MODULE_DEVICE_TABLE(acpi, irst_ids);
|
