media: v4l2: prepare compat-ioctl rework

[linux-2.6-microblaze.git] / drivers / media / v4l2-core / v4l2-compat-ioctl32.c

diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index a99e82e..7c939d5 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -1414,6 +1414,59 @@ static int put_v4l2_edid32(struct v4l2_edid __user *p64,
 #define VIDIOC_G_OUTPUT32      _IOR ('V', 46, s32)
 #define VIDIOC_S_OUTPUT32      _IOWR('V', 47, s32)
 
+unsigned int v4l2_compat_translate_cmd(unsigned int cmd)
+{
+       switch (cmd) {
+       }
+       return cmd;
+}
+
+int v4l2_compat_get_user(void __user *arg, void *parg, unsigned int cmd)
+{
+       switch (cmd) {
+       }
+       return 0;
+}
+
+int v4l2_compat_put_user(void __user *arg, void *parg, unsigned int cmd)
+{
+       switch (cmd) {
+       }
+       return 0;
+}
+
+int v4l2_compat_get_array_args(struct file *file, void *mbuf,
+                              void __user *user_ptr, size_t array_size,
+                              unsigned int cmd, void *arg)
+{
+       int err = 0;
+
+       switch (cmd) {
+       default:
+               if (copy_from_user(mbuf, user_ptr, array_size))
+                       err = -EFAULT;
+               break;
+       }
+
+       return err;
+}
+
+int v4l2_compat_put_array_args(struct file *file, void __user *user_ptr,
+                              void *mbuf, size_t array_size,
+                              unsigned int cmd, void *arg)
+{
+       int err = 0;
+
+       switch (cmd) {
+       default:
+               if (copy_to_user(user_ptr, mbuf, array_size))
+                       err = -EFAULT;
+               break;
+       }
+
+       return err;
+}
+
 /**
  * alloc_userspace() - Allocates a 64-bits userspace pointer compatible
  *     for calling the native 64-bits version of an ioctl.