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path: root/drivers/misc/mei/main.c
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Diffstat (limited to 'drivers/misc/mei/main.c')
-rw-r--r--drivers/misc/mei/main.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index e9513d651cd3..ffa70035af29 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -446,6 +446,45 @@ end:
}
/**
+ * mei_ioctl_client_notify_request -
+ * propagate event notification request to client
+ *
+ * @file: pointer to file structure
+ * @request: 0 - disable, 1 - enable
+ *
+ * Return: 0 on success , <0 on error
+ */
+static int mei_ioctl_client_notify_request(struct file *file, u32 request)
+{
+ struct mei_cl *cl = file->private_data;
+
+ return mei_cl_notify_request(cl, file, request);
+}
+
+/**
+ * mei_ioctl_client_notify_get - wait for notification request
+ *
+ * @file: pointer to file structure
+ * @notify_get: 0 - disable, 1 - enable
+ *
+ * Return: 0 on success , <0 on error
+ */
+static int mei_ioctl_client_notify_get(struct file *file, u32 *notify_get)
+{
+ struct mei_cl *cl = file->private_data;
+ bool notify_ev;
+ bool block = (file->f_flags & O_NONBLOCK) == 0;
+ int rets;
+
+ rets = mei_cl_notify_get(cl, block, &notify_ev);
+ if (rets)
+ return rets;
+
+ *notify_get = notify_ev ? 1 : 0;
+ return 0;
+}
+
+/**
* mei_ioctl - the IOCTL function
*
* @file: pointer to file structure
@@ -459,6 +498,7 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
struct mei_device *dev;
struct mei_cl *cl = file->private_data;
struct mei_connect_client_data connect_data;
+ u32 notify_get, notify_req;
int rets;
@@ -499,6 +539,33 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
break;
+ case IOCTL_MEI_NOTIFY_SET:
+ dev_dbg(dev->dev, ": IOCTL_MEI_NOTIFY_SET.\n");
+ if (copy_from_user(&notify_req,
+ (char __user *)data, sizeof(notify_req))) {
+ dev_dbg(dev->dev, "failed to copy data from userland\n");
+ rets = -EFAULT;
+ goto out;
+ }
+ rets = mei_ioctl_client_notify_request(file, notify_req);
+ break;
+
+ case IOCTL_MEI_NOTIFY_GET:
+ dev_dbg(dev->dev, ": IOCTL_MEI_NOTIFY_GET.\n");
+ rets = mei_ioctl_client_notify_get(file, &notify_get);
+ if (rets)
+ goto out;
+
+ dev_dbg(dev->dev, "copy connect data to user\n");
+ if (copy_to_user((char __user *)data,
+ &notify_get, sizeof(notify_get))) {
+ dev_dbg(dev->dev, "failed to copy data to userland\n");
+ rets = -EFAULT;
+ goto out;
+
+ }
+ break;
+
default:
dev_err(dev->dev, ": unsupported ioctl %d.\n", cmd);
rets = -ENOIOCTLCMD;