V4L/DVB (7937): pvrusb2: Change several embedded timer constants to defined values
This is primarily a cosmetic change to make it easier to change some of the time constants used in the driver. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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@ -39,6 +39,21 @@
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#define TV_MIN_FREQ 55250000L
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#define TV_MAX_FREQ 850000000L
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/* This defines a minimum interval that the decoder must remain quiet
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before we are allowed to start it running. */
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#define TIME_MSEC_DECODER_WAIT 50
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/* This defines a minimum interval that the encoder must remain quiet
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before we are allowed to configure it. */
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#define TIME_MSEC_ENCODER_WAIT 50
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/* This defines the minimum interval that the encoder must successfully run
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before we consider that the encoder has run at least once since its
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firmware has been loaded. This measurement is in important for cases
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where we can't do something until we know that the encoder has been run
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at least once. */
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#define TIME_MSEC_ENCODER_OK 250
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static struct pvr2_hdw *unit_pointers[PVR_NUM] = {[ 0 ... PVR_NUM-1 ] = NULL};
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static DEFINE_MUTEX(pvr2_unit_mtx);
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@ -3608,7 +3623,9 @@ static int state_eval_encoder_config(struct pvr2_hdw *hdw)
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the encoder. */
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if (!hdw->state_encoder_waitok) {
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hdw->encoder_wait_timer.expires =
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jiffies + (HZ*50/1000);
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jiffies +
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(HZ * TIME_MSEC_ENCODER_WAIT
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/ 1000);
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add_timer(&hdw->encoder_wait_timer);
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}
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}
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@ -3732,7 +3749,7 @@ static int state_eval_encoder_run(struct pvr2_hdw *hdw)
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hdw->state_encoder_run = !0;
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if (!hdw->state_encoder_runok) {
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hdw->encoder_run_timer.expires =
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jiffies + (HZ*250/1000);
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jiffies + (HZ * TIME_MSEC_ENCODER_OK / 1000);
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add_timer(&hdw->encoder_run_timer);
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}
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}
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@ -3807,7 +3824,9 @@ static int state_eval_decoder_run(struct pvr2_hdw *hdw)
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but before we did the pending check. */
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if (!hdw->state_decoder_quiescent) {
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hdw->quiescent_timer.expires =
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jiffies + (HZ*50/1000);
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jiffies +
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(HZ * TIME_MSEC_DECODER_WAIT
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/ 1000);
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add_timer(&hdw->quiescent_timer);
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}
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}
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