V4L/DVB (7709): pvrusb2: New device attribute for encoder usage in digital mode

Some tuners seem to not work in digital mode unless the encoder is
healthy.  Implement a device attribute to represent this flag and
modify the core state machines to enforce this requirement.

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

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.h b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
index 38913519a818..c2e2b06fe2e0 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-devattr.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
@@ -106,6 +106,13 @@ struct pvr2_device_desc {
         /* If set, we don't bother trying to load cx23416 firmware. */
         int flag_skip_cx23416_firmware:1;
 
+        /* If set, the encoder must be healthy in order for digital mode to
+           work (otherwise we assume that digital streaming will work even
+           if we fail to locate firmware for the encoder).  If the device
+           doesn't support digital streaming then this flag has no
+           effect. */
+        int flag_digital_requires_cx23416:1;
+
         /* Device has a hauppauge eeprom which we can interrogate. */
         int flag_has_hauppauge_rom:1;