korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-18 00:24:58 +08:00
Code Issues Packages Projects Releases Wiki Activity

platform/x86: wmi: Split devices into types and add basic sysfs attributes

Browse Source 
Divide the "data", "method" and "event" types. All devices get
"instance_count" and "expensive" attributes, data and method devices get
"object_id" attributes, and event devices get "notify_id" attributes.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Mario Limonciello <mario_limonciello@dell.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: linux-kernel@vger.kernel.org
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-acpi@vger.kernel.org
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
This commit is contained in:
Andy Lutomirski 2015-11-25 10:01:37 -08:00 committed by Darren Hart (VMware)
parent a1c31bcd57
commit d79b107402
1 changed files with 77 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
drivers/platform/x86/wmi.c
View File

@ -575,13 +575,65 @@ static ssize_t guid_show(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR_RO(guid);
static ssize_t instance_count_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct wmi_block *wblock = dev_to_wblock(dev);
return sprintf(buf, "%d\n", (int)wblock->gblock.instance_count);
}
static DEVICE_ATTR_RO(instance_count);
static ssize_t expensive_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct wmi_block *wblock = dev_to_wblock(dev);
return sprintf(buf, "%d\n",
(wblock->gblock.flags & ACPI_WMI_EXPENSIVE) != 0);
}
static DEVICE_ATTR_RO(expensive);
static struct attribute *wmi_attrs[] = {
&dev_attr_modalias.attr,
&dev_attr_guid.attr,
&dev_attr_instance_count.attr,
&dev_attr_expensive.attr,
NULL,
};
ATTRIBUTE_GROUPS(wmi);
static ssize_t notify_id_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct wmi_block *wblock = dev_to_wblock(dev);
return sprintf(buf, "%02X\n", (unsigned int)wblock->gblock.notify_id);
}
static DEVICE_ATTR_RO(notify_id);
static struct attribute *wmi_event_attrs[] = {
&dev_attr_notify_id.attr,
NULL,
};
ATTRIBUTE_GROUPS(wmi_event);
static ssize_t object_id_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct wmi_block *wblock = dev_to_wblock(dev);
return sprintf(buf, "%c%c\n", wblock->gblock.object_id[0],
wblock->gblock.object_id[1]);
}
static DEVICE_ATTR_RO(object_id);
static struct attribute *wmi_data_or_method_attrs[] = {
&dev_attr_object_id.attr,
NULL,
};
ATTRIBUTE_GROUPS(wmi_data_or_method);
static int wmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct wmi_block *wblock = dev_to_wblock(dev);
@ -671,6 +723,24 @@ static struct bus_type wmi_bus_type = {
.remove = wmi_dev_remove,
};
static struct device_type wmi_type_event = {
.name = "event",
.groups = wmi_event_groups,
.release = wmi_dev_release,
};
static struct device_type wmi_type_method = {
.name = "method",
.groups = wmi_data_or_method_groups,
.release = wmi_dev_release,
};
static struct device_type wmi_type_data = {
.name = "data",
.groups = wmi_data_or_method_groups,
.release = wmi_dev_release,
};
static int wmi_create_device(struct device *wmi_bus_dev,
const struct guid_block *gblock,
struct wmi_block *wblock,
@ -681,7 +751,13 @@ static int wmi_create_device(struct device *wmi_bus_dev,
dev_set_name(&wblock->dev.dev, "%pUL", gblock->guid);
wblock->dev.dev.release = wmi_dev_release;
if (gblock->flags & ACPI_WMI_EVENT) {
wblock->dev.dev.type = &wmi_type_event;
} else if (gblock->flags & ACPI_WMI_METHOD) {
wblock->dev.dev.type = &wmi_type_method;
} else {
wblock->dev.dev.type = &wmi_type_data;
}
return device_register(&wblock->dev.dev);
}