V4L/DVB (4662): Pvrusb2: Implement VIDIOC_INT_[G|S]_REGISTER

Implement VIDIOC_INT_SET_REGISTER and VIDIOC_INT_GET_REGISTER for the
pvrusb2 driver.  This is a debugging aid which will not be enabled
unless CONFIG_VIDEO_ADV_DEBUG has been enabled.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
index 3608c2f81df9..156e375c93e9 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c
@@ -671,6 +671,20 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file,
                 ret = 0;
                 break;
         }
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+        case VIDIOC_INT_G_REGISTER:
+        case VIDIOC_INT_S_REGISTER:
+        {
+                u32 val;
+                struct v4l2_register *req = (struct v4l2_register *)arg;
+                if (cmd == VIDIOC_INT_S_REGISTER) val = req->val;
+                ret = pvr2_hdw_register_access(
+                        hdw,req->i2c_id,req->reg,
+                        cmd == VIDIOC_INT_S_REGISTER,&val);
+                if (cmd == 0) req->val = val;
+                break;
+        }
+#endif
 
         default :
                 ret = v4l_compat_translate_ioctl(inode,file,cmd,