V4L/DVB (11163): pvrusb2: Lay foundation for triggering sub-device updates
These changes set up the spot where we'll check for and set general
updates to any attached sub-devices.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index c764f36..4c24028 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -2839,6 +2839,14 @@
}
+/* Execute whatever commands are required to update the state of all the
+ sub-devices so that it matches our current control values. */
+static void pvr2_subdev_update(struct pvr2_hdw *hdw)
+{
+ /* ????? */
+}
+
+
/* Figure out if we need to commit control changes. If so, mark internal
state flags to indicate this fact and return true. Otherwise do nothing
else and return false. */
@@ -3009,12 +3017,6 @@
the client drivers in order to keep everything in sync */
pvr2_i2c_core_check_stale(hdw);
- for (idx = 0; idx < hdw->control_cnt; idx++) {
- cptr = hdw->controls + idx;
- if (!cptr->info->clear_dirty) continue;
- cptr->info->clear_dirty(cptr);
- }
-
if (hdw->active_stream_type != hdw->desired_stream_type) {
/* Handle any side effects of stream config here */
hdw->active_stream_type = hdw->desired_stream_type;
@@ -3034,6 +3036,15 @@
}
}
+ for (idx = 0; idx < hdw->control_cnt; idx++) {
+ cptr = hdw->controls + idx;
+ if (!cptr->info->clear_dirty) continue;
+ cptr->info->clear_dirty(cptr);
+ }
+
+ /* Check and update state for all sub-devices. */
+ pvr2_subdev_update(hdw);
+
/* Now execute i2c core update */
pvr2_i2c_core_sync(hdw);
@@ -3190,8 +3201,8 @@
{
int nr = pvr2_hdw_get_unit_number(hdw);
LOCK_TAKE(hdw->big_lock); do {
- hdw->log_requested = !0;
printk(KERN_INFO "pvrusb2: ================= START STATUS CARD #%d =================\n", nr);
+ hdw->log_requested = !0;
pvr2_i2c_core_check_stale(hdw);
pvr2_i2c_core_sync(hdw);
hdw->log_requested = 0;