diff options
Diffstat (limited to 'drivers/media/video/pvrusb2')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h | 12 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 53 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.h | 1 |
3 files changed, 57 insertions, 9 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h index de5485f506b..cb4057bb07a 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h @@ -233,8 +233,9 @@ struct pvr2_hdw { int state_encoder_waitok; /* Encoder pre-wait done */ int state_encoder_runok; /* Encoder has run for >= .25 sec */ int state_decoder_run; /* Decoder is running */ + int state_decoder_ready; /* Decoder is stabilized & streamable */ int state_usbstream_run; /* FX2 is streaming */ - int state_decoder_quiescent; /* Decoder idle for > 50msec */ + int state_decoder_quiescent; /* Decoder idle for minimal interval */ int state_pipeline_config; /* Pipeline is configured */ int state_pipeline_req; /* Somebody wants to stream */ int state_pipeline_pause; /* Pipeline must be paused */ @@ -255,9 +256,16 @@ struct pvr2_hdw { void (*state_func)(void *); void *state_data; - /* Timer for measuring decoder settling time */ + /* Timer for measuring required decoder settling time before we're + allowed to fire it up again. */ struct timer_list quiescent_timer; + /* Timer for measuring decoder stabilization time, which is the + amount of time we need to let the decoder run before we can + trust its output (otherwise the encoder might see garbage and + then fail to start correctly). */ + struct timer_list decoder_stabilization_timer; + /* Timer for measuring encoder pre-wait time */ struct timer_list encoder_wait_timer; diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 1bbdab08fe0..712b300f723 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -48,11 +48,13 @@ before we are allowed to start it running. */ #define TIME_MSEC_DECODER_WAIT 50 +/* This defines a minimum interval that the decoder must be allowed to run + before we can safely begin using its streaming output. */ +#define TIME_MSEC_DECODER_STABILIZATION_WAIT 300 + /* This defines a minimum interval that the encoder must remain quiet - before we are allowed to configure it. I had this originally set to - 50msec, but Martin Dauskardt <martin.dauskardt@gmx.de> reports that - things work better when it's set to 100msec. */ -#define TIME_MSEC_ENCODER_WAIT 100 + before we are allowed to configure it. */ +#define TIME_MSEC_ENCODER_WAIT 50 /* This defines the minimum interval that the encoder must successfully run before we consider that the encoder has run at least once since its @@ -334,6 +336,7 @@ static int pvr2_hdw_get_eeprom_addr(struct pvr2_hdw *hdw); static void pvr2_hdw_internal_find_stdenum(struct pvr2_hdw *hdw); static void pvr2_hdw_internal_set_std_avail(struct pvr2_hdw *hdw); static void pvr2_hdw_quiescent_timeout(unsigned long); +static void pvr2_hdw_decoder_stabilization_timeout(unsigned long); static void pvr2_hdw_encoder_wait_timeout(unsigned long); static void pvr2_hdw_encoder_run_timeout(unsigned long); static int pvr2_issue_simple_cmd(struct pvr2_hdw *,u32); @@ -1705,6 +1708,7 @@ static int pvr2_decoder_enable(struct pvr2_hdw *hdw,int enablefl) pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 stream=%s", (enablefl ? "on" : "off")); v4l2_device_call_all(&hdw->v4l2_dev, 0, video, s_stream, enablefl); + v4l2_device_call_all(&hdw->v4l2_dev, 0, audio, 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 @@ -2461,6 +2465,11 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, hdw->quiescent_timer.data = (unsigned long)hdw; hdw->quiescent_timer.function = pvr2_hdw_quiescent_timeout; + init_timer(&hdw->decoder_stabilization_timer); + hdw->decoder_stabilization_timer.data = (unsigned long)hdw; + hdw->decoder_stabilization_timer.function = + pvr2_hdw_decoder_stabilization_timeout; + init_timer(&hdw->encoder_wait_timer); hdw->encoder_wait_timer.data = (unsigned long)hdw; hdw->encoder_wait_timer.function = pvr2_hdw_encoder_wait_timeout; @@ -2674,6 +2683,7 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, fail: if (hdw) { del_timer_sync(&hdw->quiescent_timer); + del_timer_sync(&hdw->decoder_stabilization_timer); del_timer_sync(&hdw->encoder_run_timer); del_timer_sync(&hdw->encoder_wait_timer); if (hdw->workqueue) { @@ -2741,6 +2751,7 @@ void pvr2_hdw_destroy(struct pvr2_hdw *hdw) hdw->workqueue = NULL; } del_timer_sync(&hdw->quiescent_timer); + del_timer_sync(&hdw->decoder_stabilization_timer); del_timer_sync(&hdw->encoder_run_timer); del_timer_sync(&hdw->encoder_wait_timer); if (hdw->fw_buffer) { @@ -4452,7 +4463,7 @@ static int state_check_enable_encoder_run(struct pvr2_hdw *hdw) switch (hdw->pathway_state) { case PVR2_PATHWAY_ANALOG: - if (hdw->state_decoder_run) { + if (hdw->state_decoder_run && hdw->state_decoder_ready) { /* In analog mode, if the decoder is running, then run the encoder. */ return !0; @@ -4519,6 +4530,17 @@ static void pvr2_hdw_quiescent_timeout(unsigned long data) } +/* Timeout function for decoder stabilization timer. */ +static void pvr2_hdw_decoder_stabilization_timeout(unsigned long data) +{ + struct pvr2_hdw *hdw = (struct pvr2_hdw *)data; + hdw->state_decoder_ready = !0; + trace_stbit("state_decoder_ready", hdw->state_decoder_ready); + hdw->state_stale = !0; + queue_work(hdw->workqueue, &hdw->workpoll); +} + + /* Timeout function for encoder wait timer. */ static void pvr2_hdw_encoder_wait_timeout(unsigned long data) { @@ -4557,8 +4579,13 @@ static int state_eval_decoder_run(struct pvr2_hdw *hdw) } hdw->state_decoder_quiescent = 0; hdw->state_decoder_run = 0; - /* paranoia - solve race if timer just completed */ + /* paranoia - solve race if timer(s) just completed */ del_timer_sync(&hdw->quiescent_timer); + /* Kill the stabilization timer, in case we're killing the + encoder before the previous stabilization interval has + been properly timed. */ + del_timer_sync(&hdw->decoder_stabilization_timer); + hdw->state_decoder_ready = 0; } else { if (!hdw->state_decoder_quiescent) { if (!timer_pending(&hdw->quiescent_timer)) { @@ -4596,10 +4623,21 @@ static int state_eval_decoder_run(struct pvr2_hdw *hdw) if (hdw->flag_decoder_missed) return 0; if (pvr2_decoder_enable(hdw,!0) < 0) return 0; hdw->state_decoder_quiescent = 0; + hdw->state_decoder_ready = 0; hdw->state_decoder_run = !0; + if (hdw->decoder_client_id == PVR2_CLIENT_ID_SAA7115) { + hdw->decoder_stabilization_timer.expires = + jiffies + + (HZ * TIME_MSEC_DECODER_STABILIZATION_WAIT / + 1000); + add_timer(&hdw->decoder_stabilization_timer); + } else { + hdw->state_decoder_ready = !0; + } } trace_stbit("state_decoder_quiescent",hdw->state_decoder_quiescent); trace_stbit("state_decoder_run",hdw->state_decoder_run); + trace_stbit("state_decoder_ready", hdw->state_decoder_ready); return !0; } @@ -4797,7 +4835,8 @@ static unsigned int pvr2_hdw_report_unlocked(struct pvr2_hdw *hdw,int which, buf,acnt, "worker:%s%s%s%s%s%s%s", (hdw->state_decoder_run ? - " <decode:run>" : + (hdw->state_decoder_ready ? + "<decode:run>" : " <decode:start>") : (hdw->state_decoder_quiescent ? "" : " <decode:stop>")), (hdw->state_decoder_quiescent ? diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h index 56e70eae20c..51d3009ab57 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h @@ -306,6 +306,7 @@ struct pvr2_hdw_debug_info { int state_encoder_ok; int state_encoder_run; int state_decoder_run; + int state_decoder_ready; int state_usbstream_run; int state_decoder_quiescent; int state_pipeline_config; |