This devices 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@xxxxxxxxxx>
---
drivers/platform/x86/wmi.c | 78 +++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 77 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index c181cf5ecdc6..5571ae7354a1 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -653,13 +653,65 @@ 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);
@@ -749,6 +801,24 @@ 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,
@@ -759,7 +829,13 @@ 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);
}
--
2.5.0
--
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