diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 0808d58..d4d5795 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -39,6 +39,21 @@ #define TV_MIN_FREQ 55250000L #define TV_MAX_FREQ 850000000L +/* This defines a minimum interval that the decoder must remain quiet + before we are allowed to start it running. */ +#define TIME_MSEC_DECODER_WAIT 50 + +/* This defines a minimum interval that the encoder must remain quiet + 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 + firmware has been loaded. This measurement is in important for cases + where we can't do something until we know that the encoder has been run + at least once. */ +#define TIME_MSEC_ENCODER_OK 250 + static struct pvr2_hdw *unit_pointers[PVR_NUM] = {[ 0 ... PVR_NUM-1 ] = NULL}; static DEFINE_MUTEX(pvr2_unit_mtx); @@ -3608,7 +3623,9 @@ static int state_eval_encoder_config(struct pvr2_hdw *hdw) the encoder. */ if (!hdw->state_encoder_waitok) { hdw->encoder_wait_timer.expires = - jiffies + (HZ*50/1000); + jiffies + + (HZ * TIME_MSEC_ENCODER_WAIT + / 1000); add_timer(&hdw->encoder_wait_timer); } } @@ -3732,7 +3749,7 @@ static int state_eval_encoder_run(struct pvr2_hdw *hdw) hdw->state_encoder_run = !0; if (!hdw->state_encoder_runok) { hdw->encoder_run_timer.expires = - jiffies + (HZ*250/1000); + jiffies + (HZ * TIME_MSEC_ENCODER_OK / 1000); add_timer(&hdw->encoder_run_timer); } } @@ -3807,7 +3824,9 @@ static int state_eval_decoder_run(struct pvr2_hdw *hdw) but before we did the pending check. */ if (!hdw->state_decoder_quiescent) { hdw->quiescent_timer.expires = - jiffies + (HZ*50/1000); + jiffies + + (HZ * TIME_MSEC_DECODER_WAIT + / 1000); add_timer(&hdw->quiescent_timer); } } |