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staging: comedi: pcmmio: remove 'continuous' from private data

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This member of the private data can be determined from the cmd->stop_src.
Do that instead and remove the member.

Refactor pcmmio_handle_dio_intr() to remove an indent level.

For aesthetics, change the switch in pcmmio_cmd() to an if/else.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2014-05-27 10:30:57 -07:00 committed by Greg Kroah-Hartman
parent aecbc17285
commit 29791cf5cc
1 changed files with 9 additions and 20 deletions

29
drivers/staging/comedi/drivers/pcmmio.c
View File

@ -192,7 +192,6 @@ struct pcmmio_private {
unsigned int enabled_mask;
unsigned int stop_count;
unsigned int active:1;
unsigned int continuous:1;
unsigned int ao_readback[8];
};
@ -371,15 +370,12 @@ static void pcmmio_handle_dio_intr(struct comedi_device *dev,
}
/* Check for end of acquisition. */
if (!devpriv->continuous) {
/* stop_src == TRIG_COUNT */
if (devpriv->stop_count > 0) {
devpriv->stop_count--;
if (devpriv->stop_count == 0) {
s->async->events |= COMEDI_CB_EOA;
/* TODO: STOP_ACQUISITION_CALL_HERE!! */
pcmmio_stop_intr(dev, s);
}
if (cmd->stop_src == TRIG_COUNT && devpriv->stop_count > 0) {
devpriv->stop_count--;
if (devpriv->stop_count == 0) {
s->async->events |= COMEDI_CB_EOA;
/* TODO: STOP_ACQUISITION_CALL_HERE!! */
pcmmio_stop_intr(dev, s);
}
}
@ -421,7 +417,7 @@ static int pcmmio_start_intr(struct comedi_device *dev,
unsigned int pol_bits = 0;
int i;
if (!devpriv->continuous && devpriv->stop_count == 0) {
if (cmd->stop_src == TRIG_COUNT && devpriv->stop_count == 0) {
/* An empty acquisition! */
s->async->events |= COMEDI_CB_EOA;
devpriv->active = 0;
@ -502,17 +498,10 @@ static int pcmmio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
devpriv->active = 1;
/* Set up end of acquisition. */
switch (cmd->stop_src) {
case TRIG_COUNT:
devpriv->continuous = 0;
if (cmd->stop_src == TRIG_COUNT)
devpriv->stop_count = cmd->stop_arg;
break;
default:
/* TRIG_NONE */
devpriv->continuous = 1;
else /* TRIG_NONE */
devpriv->stop_count = 0;
break;
}
/* Set up start of acquisition. */
if (cmd->start_src == TRIG_INT)