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V4L/DVB (11171): pvrusb2: Tie in sub-device decoder start/stop

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Implement code to send appropriate streaming start/stop commands to
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 00:21:30 -03:00 committed by Mauro Carvalho Chehab
parent 6907205bcb
commit af78e16b5d
1 changed files with 40 additions and 27 deletions
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67
drivers/media/video/pvrusb2/pvrusb2-hdw.c
View file

@ -1655,19 +1655,29 @@ static const char *pvr2_get_state_name(unsigned int st)
static int pvr2_decoder_enable(struct pvr2_hdw *hdw,int enablefl)
{
if (!hdw->decoder_ctrl) {
if (!hdw->flag_decoder_missed) {
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
"WARNING: No decoder present");
hdw->flag_decoder_missed = !0;
trace_stbit("flag_decoder_missed",
hdw->flag_decoder_missed);
}
return -EIO;
if (hdw->decoder_ctrl) {
hdw->decoder_ctrl->enable(hdw->decoder_ctrl->ctxt, enablefl);
return 0;
}
hdw->decoder_ctrl->enable(hdw->decoder_ctrl->ctxt,enablefl);
// ?????
return 0;
/* Even though we really only care about the video decoder chip at
this point, we'll broadcast stream on/off to all sub-devices
anyway, just in case somebody else wants to hear the
command... */
v4l2_device_call_all(&hdw->v4l2_dev, 0, video, s_stream, enablefl);
if (hdw->decoder_client_id) {
/* We get here if the encoder has been noticed. Otherwise
we'll issue a warning to the user (which should
normally never happen). */
return 0;
}
if (!hdw->flag_decoder_missed) {
pvr2_trace(PVR2_TRACE_ERROR_LEGS,
"WARNING: No decoder present");
hdw->flag_decoder_missed = !0;
trace_stbit("flag_decoder_missed",
hdw->flag_decoder_missed);
}
return -EIO;
}
@ -4009,23 +4019,26 @@ int pvr2_hdw_cmd_powerdown(struct pvr2_hdw *hdw)
int pvr2_hdw_cmd_decoder_reset(struct pvr2_hdw *hdw)
{
if (!hdw->decoder_ctrl) {
pvr2_trace(PVR2_TRACE_INIT,
"Unable to reset decoder: nothing attached");
return -ENOTTY;
}
if (!hdw->decoder_ctrl->force_reset) {
pvr2_trace(PVR2_TRACE_INIT,
"Unable to reset decoder: not implemented");
return -ENOTTY;
}
pvr2_trace(PVR2_TRACE_INIT,
"Requesting decoder reset");
hdw->decoder_ctrl->force_reset(hdw->decoder_ctrl->ctxt);
// ?????
return 0;
if (hdw->decoder_ctrl) {
if (!hdw->decoder_ctrl->force_reset) {
pvr2_trace(PVR2_TRACE_INIT,
"Unable to reset decoder: not implemented");
return -ENOTTY;
}
hdw->decoder_ctrl->force_reset(hdw->decoder_ctrl->ctxt);
return 0;
} else {
}
if (hdw->decoder_client_id) {
v4l2_device_call_all(&hdw->v4l2_dev, hdw->decoder_client_id,
core, reset, 0);
return 0;
}
pvr2_trace(PVR2_TRACE_INIT,
"Unable to reset decoder: nothing attached");
return -ENOTTY;
}