V4L/DVB (13100): cx23885: Add IR input keypress handling and enable for the HVR-1850

This changes adds IR Rx keypress input event handling to the CX23885 module.
This change specifically only adds input handling for IR devices implemented as
v4l2_subdevices, using only the pulse width mode (for now), and only with
RC-5 remotes.  The V4L-DVB infrastructure is missing too much to support RC-6
mode 6A as used in many media center remotes.   The grey Hauppauge RC-5 remote
and HVR-1850 IR receiver work now.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h
index ce82698db5f7..1e0e93548061 100644
--- a/drivers/media/video/cx23885/cx23885.h
+++ b/drivers/media/video/cx23885/cx23885.h
@@ -363,6 +363,9 @@ struct cx23885_dev {
         struct work_struct         ir_tx_work;
         unsigned long              ir_tx_notifications;
 
+        struct card_ir             *ir_input;
+        atomic_t                   ir_input_stopping;
+
         /* V4l */
         u32                        freq;
         struct video_device        *video_dev;