V4L/DVB (11387): Sensor orientation reporting

Add support to the SQ-905 driver to pass back to user space the
sensor orientation information obtained from the camera during init.
Modifies gspca and the videodev2.h header to create the necessary
API.

[mchehab@redhat.com: Changed "Output is" to "Frames are" at the comments, as suggested at LMML]
Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 8 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index a75c1ca2db41..a2741d7dccfe 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -1132,6 +1132,7 @@ static int vidioc_enum_input(struct file *file, void *priv,
         if (input->index != 0)
                 return -EINVAL;
         input->type = V4L2_INPUT_TYPE_CAMERA;
+        input->status = gspca_dev->cam.input_flags;
         strncpy(input->name, gspca_dev->sd_desc->name,
                 sizeof input->name);
         return 0;
diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h
index e4d4cf6ce05a..58e8ff02136a 100644
--- a/drivers/media/video/gspca/gspca.h
+++ b/drivers/media/video/gspca/gspca.h
@@ -56,6 +56,7 @@ struct cam {
                                  * - cannot be > MAX_NURBS
                                  * - when 0 and bulk_size != 0 means
                                  *   1 URB and submit done by subdriver */
+        u32 input_flags;        /* value for ENUM_INPUT status flags */
 };
 
 struct gspca_dev;
diff --git a/drivers/media/video/gspca/sq905.c b/drivers/media/video/gspca/sq905.c
index 04e3ae57a2e3..2e1cdf068fda 100644
--- a/drivers/media/video/gspca/sq905.c
+++ b/drivers/media/video/gspca/sq905.c
@@ -360,6 +360,12 @@ static int sd_init(struct gspca_dev *gspca_dev)
         gspca_dev->cam.nmodes = ARRAY_SIZE(sq905_mode);
         if (!(ident & SQ905_HIRES_MASK))
                 gspca_dev->cam.nmodes--;
+
+        if (ident & SQ905_ORIENTATION_MASK)
+                gspca_dev->cam.input_flags = V4L2_IN_ST_VFLIP;
+        else
+                gspca_dev->cam.input_flags = V4L2_IN_ST_VFLIP |
+                                             V4L2_IN_ST_HFLIP;
         return 0;
 }