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1/*
2 * Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org>
3 *
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.
8 *
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.
13 *
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.
17 */
18
19
20#include <linux/init.h>
21#include <linux/module.h>
22#include <linux/slab.h>
23#include <linux/acpi.h>
24
25MODULE_LICENSE("GPL");
26
27static ssize_t irst_show_wakeup_events(struct device *dev,
28 struct device_attribute *attr,
29 char *buf)
30{
31 struct acpi_device *acpi;
32 unsigned long long value;
33 acpi_status status;
34
35 acpi = to_acpi_device(dev);
36
37 status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value);
38 if (ACPI_FAILURE(status))
39 return -EINVAL;
40
41 return sprintf(buf, "%lld\n", value);
42}
43
44static ssize_t irst_store_wakeup_events(struct device *dev,
45 struct device_attribute *attr,
46 const char *buf, size_t count)
47{
48 struct acpi_device *acpi;
49 acpi_status status;
50 unsigned long value;
51 int error;
52
53 acpi = to_acpi_device(dev);
54
55 error = kstrtoul(buf, 0, &value);
56
57 if (error)
58 return error;
59
60 status = acpi_execute_simple_method(acpi->handle, "SFFS", value);
61
62 if (ACPI_FAILURE(status))
63 return -EINVAL;
64
65 return count;
66}
67
68static 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
72};
73
74static ssize_t irst_show_wakeup_time(struct device *dev,
75 struct device_attribute *attr, char *buf)
76{
77 struct acpi_device *acpi;
78 unsigned long long value;
79 acpi_status status;
80
81 acpi = to_acpi_device(dev);
82
83 status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value);
84 if (ACPI_FAILURE(status))
85 return -EINVAL;
86
87 return sprintf(buf, "%lld\n", value);
88}
89
90static ssize_t irst_store_wakeup_time(struct device *dev,
91 struct device_attribute *attr,
92 const char *buf, size_t count)
93{
94 struct acpi_device *acpi;
95 acpi_status status;
96 unsigned long value;
97 int error;
98
99 acpi = to_acpi_device(dev);
100
101 error = kstrtoul(buf, 0, &value);
102
103 if (error)
104 return error;
105
106 status = acpi_execute_simple_method(acpi->handle, "SFTV", value);
107
108 if (ACPI_FAILURE(status))
109 return -EINVAL;
110
111 return count;
112}
113
114static 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
118};
119
120static int irst_add(struct acpi_device *acpi)
121{
122 int error;
123
124 error = device_create_file(&acpi->dev, &irst_timeout_attr);
125 if (unlikely(error))
126 return error;
127
128 error = device_create_file(&acpi->dev, &irst_wakeup_attr);
129 if (unlikely(error))
130 device_remove_file(&acpi->dev, &irst_timeout_attr);
131
132 return error;
133}
134
135static int irst_remove(struct acpi_device *acpi)
136{
137 device_remove_file(&acpi->dev, &irst_wakeup_attr);
138 device_remove_file(&acpi->dev, &irst_timeout_attr);
139
140 return 0;
141}
142
143static const struct acpi_device_id irst_ids[] = {
144 {"INT3392", 0},
145 {"", 0}
146};
147
148static struct acpi_driver irst_driver = {
149 .owner = THIS_MODULE,
150 .name = "intel_rapid_start",
151 .class = "intel_rapid_start",
152 .ids = irst_ids,
153 .ops = {
154 .add = irst_add,
155 .remove = irst_remove,
156 },
157};
158
159module_acpi_driver(irst_driver);
160
161MODULE_DEVICE_TABLE(acpi, irst_ids);
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org>
4 */
5
6#include <linux/acpi.h>
7#include <linux/module.h>
8#include <linux/slab.h>
9
10MODULE_LICENSE("GPL");
11
12static ssize_t irst_show_wakeup_events(struct device *dev,
13 struct device_attribute *attr,
14 char *buf)
15{
16 struct acpi_device *acpi;
17 unsigned long long value;
18 acpi_status status;
19
20 acpi = to_acpi_device(dev);
21
22 status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value);
23 if (ACPI_FAILURE(status))
24 return -EINVAL;
25
26 return sprintf(buf, "%lld\n", value);
27}
28
29static ssize_t irst_store_wakeup_events(struct device *dev,
30 struct device_attribute *attr,
31 const char *buf, size_t count)
32{
33 struct acpi_device *acpi;
34 acpi_status status;
35 unsigned long value;
36 int error;
37
38 acpi = to_acpi_device(dev);
39
40 error = kstrtoul(buf, 0, &value);
41 if (error)
42 return error;
43
44 status = acpi_execute_simple_method(acpi->handle, "SFFS", value);
45 if (ACPI_FAILURE(status))
46 return -EINVAL;
47
48 return count;
49}
50
51static struct device_attribute irst_wakeup_attr = {
52 .attr = { .name = "wakeup_events", .mode = 0600 },
53 .show = irst_show_wakeup_events,
54 .store = irst_store_wakeup_events
55};
56
57static ssize_t irst_show_wakeup_time(struct device *dev,
58 struct device_attribute *attr, char *buf)
59{
60 struct acpi_device *acpi;
61 unsigned long long value;
62 acpi_status status;
63
64 acpi = to_acpi_device(dev);
65
66 status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value);
67 if (ACPI_FAILURE(status))
68 return -EINVAL;
69
70 return sprintf(buf, "%lld\n", value);
71}
72
73static ssize_t irst_store_wakeup_time(struct device *dev,
74 struct device_attribute *attr,
75 const char *buf, size_t count)
76{
77 struct acpi_device *acpi;
78 acpi_status status;
79 unsigned long value;
80 int error;
81
82 acpi = to_acpi_device(dev);
83
84 error = kstrtoul(buf, 0, &value);
85 if (error)
86 return error;
87
88 status = acpi_execute_simple_method(acpi->handle, "SFTV", value);
89 if (ACPI_FAILURE(status))
90 return -EINVAL;
91
92 return count;
93}
94
95static struct device_attribute irst_timeout_attr = {
96 .attr = { .name = "wakeup_time", .mode = 0600 },
97 .show = irst_show_wakeup_time,
98 .store = irst_store_wakeup_time
99};
100
101static int irst_add(struct acpi_device *acpi)
102{
103 int error;
104
105 error = device_create_file(&acpi->dev, &irst_timeout_attr);
106 if (unlikely(error))
107 return error;
108
109 error = device_create_file(&acpi->dev, &irst_wakeup_attr);
110 if (unlikely(error))
111 device_remove_file(&acpi->dev, &irst_timeout_attr);
112
113 return error;
114}
115
116static int irst_remove(struct acpi_device *acpi)
117{
118 device_remove_file(&acpi->dev, &irst_wakeup_attr);
119 device_remove_file(&acpi->dev, &irst_timeout_attr);
120
121 return 0;
122}
123
124static const struct acpi_device_id irst_ids[] = {
125 {"INT3392", 0},
126 {"", 0}
127};
128
129static struct acpi_driver irst_driver = {
130 .owner = THIS_MODULE,
131 .name = "intel_rapid_start",
132 .class = "intel_rapid_start",
133 .ids = irst_ids,
134 .ops = {
135 .add = irst_add,
136 .remove = irst_remove,
137 },
138};
139
140module_acpi_driver(irst_driver);
141
142MODULE_DEVICE_TABLE(acpi, irst_ids);