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V4L/DVB (7937): pvrusb2: Change several embedded timer constants to defined values

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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>
This commit is contained in:
Mike Isely 2008-05-26 05:51:57 -03:00 committed by Mauro Carvalho Chehab
parent 64723b3018
commit 83ce57aa45
1 changed files with 22 additions and 3 deletions
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25
drivers/media/video/pvrusb2/pvrusb2-hdw.c
View file

@ -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);
}
}