Remove the private data member 'stop_count' and use the comedi_async
'scans_done'
member to detect the end-of-acquisition.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Reviewed-by: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/pcmuio.c | 14 +++-----------
1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/staging/comedi/drivers/pcmuio.c
b/drivers/staging/comedi/drivers/pcmuio.c
index 18c2ac2..0f5483b 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -130,7 +130,6 @@ struct pcmuio_asic {
spinlock_t pagelock; /* protects the page registers */
spinlock_t spinlock; /* protects member variables */
unsigned int enabled_mask;
- unsigned int stop_count;
unsigned int active:1;
};
@@ -338,14 +337,9 @@ static void pcmuio_handle_intr_subdev(struct comedi_device
*dev,
comedi_buf_write_samples(s, &val, 1);
- /* Check for end of acquisition. */
- if (cmd->stop_src == TRIG_COUNT) {
- if (chip->stop_count > 0) {
- chip->stop_count--;
- if (chip->stop_count == 0)
- s->async->events |= COMEDI_CB_EOA;
- }
- }
+ if (cmd->stop_src == TRIG_COUNT &&
+ s->async->scans_done >= cmd->stop_arg)
+ s->async->events |= COMEDI_CB_EOA;
done:
spin_unlock_irqrestore(&chip->spinlock, flags);
@@ -474,8 +468,6 @@ static int pcmuio_cmd(struct comedi_device *dev, struct
comedi_subdevice *s)
spin_lock_irqsave(&chip->spinlock, flags);
chip->active = 1;
- chip->stop_count = cmd->stop_arg;
-
/* Set up start of acquisition. */
if (cmd->start_src == TRIG_INT)
s->async->inttrig = pcmuio_inttrig_start_intr;
--
2.0.3
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