Contributors: 8
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Matthew Garrett |
534 |
84.49% |
1 |
8.33% |
| Rafael J. Wysocki |
59 |
9.34% |
2 |
16.67% |
| Rui Zhang |
16 |
2.53% |
2 |
16.67% |
| Peter Ujfalusi |
13 |
2.06% |
2 |
16.67% |
| Jeff Johnson |
5 |
0.79% |
1 |
8.33% |
| Andy Shevchenko |
3 |
0.47% |
2 |
16.67% |
| Wei Yongjun |
1 |
0.16% |
1 |
8.33% |
| Dawei Li |
1 |
0.16% |
1 |
8.33% |
| Total |
632 |
|
12 |
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2013 Matthew Garrett <mjg59@srcf.ucam.org>
*/
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
MODULE_DESCRIPTION("Intel Rapid Start Technology Driver");
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_FAILURE(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_FAILURE(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_FAILURE(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_FAILURE(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_probe(struct platform_device *pdev)
{
struct acpi_device *acpi;
int error;
acpi = ACPI_COMPANION(&pdev->dev);
if (!acpi)
return -ENODEV;
error = device_create_file(&acpi->dev, &irst_timeout_attr);
if (unlikely(error))
return error;
error = device_create_file(&acpi->dev, &irst_wakeup_attr);
if (unlikely(error))
device_remove_file(&acpi->dev, &irst_timeout_attr);
return error;
}
static void irst_remove(struct platform_device *pdev)
{
struct acpi_device *acpi = ACPI_COMPANION(&pdev->dev);
device_remove_file(&acpi->dev, &irst_wakeup_attr);
device_remove_file(&acpi->dev, &irst_timeout_attr);
}
static const struct acpi_device_id irst_ids[] = {
{"INT3392", 0},
{"", 0}
};
static struct platform_driver irst_driver = {
.probe = irst_probe,
.remove = irst_remove,
.driver = {
.name = "intel_rapid_start",
.acpi_match_table = irst_ids,
},
};
module_platform_driver(irst_driver);
MODULE_DEVICE_TABLE(acpi, irst_ids);