V4L/DVB (11166): pvrusb2: Implement status fetching from sub-devices

Implement status fetching operations in terms of calling out to
sub-device(s).

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

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index 4e50e7bc574..d619e807a33 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -4816,7 +4816,21 @@ int pvr2_hdw_gpio_chg_out(struct pvr2_hdw *hdw,u32 msk,u32 val)
 
 void pvr2_hdw_status_poll(struct pvr2_hdw *hdw)
 {
+        struct v4l2_tuner *vtp = &hdw->tuner_signal_info;
+        memset(vtp, 0, sizeof(*vtp));
         pvr2_i2c_core_status_poll(hdw);
+        /* Note: There apparently is no replacement for VIDIOC_CROPCAP
+           using v4l2-subdev - therefore we can't support that AT ALL right
+           now.  (Of course, no sub-drivers seem to implement it either.
+           But now it's a a chicken and egg problem...) */
+        v4l2_device_call_all(&hdw->v4l2_dev, 0, tuner, g_tuner,
+                             &hdw->tuner_signal_info);
+        pvr2_trace(PVR2_TRACE_CHIPS, "client status poll"
+                   " type=%u strength=%u audio=0x%x cap=0x%x"
+                   " low=%u hi=%u",
+                   vtp->type,
+                   vtp->signal, vtp->rxsubchans, vtp->capability,
+                   vtp->rangelow, vtp->rangehigh);
 }