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V4L/DVB (11163): pvrusb2: Lay foundation for triggering sub-device updates

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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>
This commit is contained in:
Mike Isely 2009-03-07 00:01:20 -03:00 committed by Mauro Carvalho Chehab
parent 446dfdc6cc
commit 5ceaad14ea
1 changed files with 18 additions and 7 deletions
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25
drivers/media/video/pvrusb2/pvrusb2-hdw.c
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@ -2839,6 +2839,14 @@ static const char *get_ctrl_typename(enum pvr2_ctl_type tp)
}
/* 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 @@ static int pvr2_hdw_commit_execute(struct pvr2_hdw *hdw)
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 @@ static int pvr2_hdw_commit_execute(struct pvr2_hdw *hdw)
}
}
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 @@ void pvr2_hdw_trigger_module_log(struct pvr2_hdw *hdw)
{
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;