V4L/DVB (4861): Remove the need of a STD array for drivers using video_ioctl2

video_ioctl2 will auto-generate standard entries at ENUM_FMT.
Also, now, a driver may return a subset of the video array at
the return, to be stored as the current_norm.
For example, a driver may ask for V4L2_STD_PAL. At return,
driver may change it to V4L2_STD_PAL_B. This way, a futher call
to G_STD will return the exact detected video std.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 4 insertions, 10 deletions

diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 6a11d772700..fb96472a1bd 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -43,6 +43,7 @@
 
 /*  Video standard functions  */
 extern unsigned int v4l2_video_std_fps(struct v4l2_standard *vs);
+extern char *v4l2_norm_to_name(v4l2_std_id id);
 extern int v4l2_video_std_construct(struct v4l2_standard *vs,
                                     int id, char *name);
 
@@ -81,12 +82,6 @@ extern long v4l_compat_ioctl32(struct file *file, unsigned int cmd,
  *      This version moves redundant code from video device code to
  *      the common handler
  */
-struct v4l2_tvnorm {
-        char          *name;
-        v4l2_std_id   id;
-
-        void          *priv_data;
-};
 
 struct video_device
 {
@@ -104,9 +99,8 @@ struct video_device
         int debug;      /* Activates debug level*/
 
         /* Video standard vars */
-        int tvnormsize; /* Size of tvnorm array */
-        v4l2_std_id current_norm; /* Current tvnorm */
-        struct v4l2_tvnorm *tvnorms;
+        v4l2_std_id tvnorms;            /* Supported tv norms */
+        v4l2_std_id current_norm;       /* Current tvnorm */
 
         /* callbacks */
         void (*release)(struct video_device *vfd);
@@ -211,7 +205,7 @@ struct video_device
                 /* Standard handling
                         G_STD and ENUMSTD are handled by videodev.c
                  */
-        int (*vidioc_s_std)    (struct file *file, void *fh, v4l2_std_id a);
+        int (*vidioc_s_std) (struct file *file, void *fh, v4l2_std_id *norm);
         int (*vidioc_querystd) (struct file *file, void *fh, v4l2_std_id *a);
 
                 /* Input handling */