Use cfc_handler_events() to automatically (*cancel) the async command for
an end-of-acquisition or if an error/overflow occurs.
Also, cfc_handle_events() does nothing if no events are set so the local
variable 'oldevents' can be removed.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/pcmuio.c | 16 +++-------------
1 file changed, 3 insertions(+), 13 deletions(-)
diff --git a/drivers/staging/comedi/drivers/pcmuio.c
b/drivers/staging/comedi/drivers/pcmuio.c
index d4fe2ec..f37b9c6 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -317,7 +317,6 @@ static void pcmuio_handle_intr_subdev(struct comedi_device
*dev,
int asic = pcmuio_subdevice_to_asic(s);
struct pcmuio_asic *chip = &devpriv->asics[asic];
struct comedi_cmd *cmd = &s->async->cmd;
- unsigned oldevents = s->async->events;
unsigned int val = 0;
unsigned long flags;
unsigned int i;
@@ -339,31 +338,22 @@ static void pcmuio_handle_intr_subdev(struct
comedi_device *dev,
/* Write the scan to the buffer. */
if (comedi_buf_put(s, val) &&
- comedi_buf_put(s, val >> 16)) {
+ comedi_buf_put(s, val >> 16))
s->async->events |= (COMEDI_CB_BLOCK | COMEDI_CB_EOS);
- } else {
- /* Overflow! Stop acquisition!! */
- /* TODO: STOP_ACQUISITION_CALL_HERE!! */
- pcmuio_stop_intr(dev, s);
- }
/* Check for end of acquisition. */
if (cmd->stop_src == TRIG_COUNT) {
if (chip->stop_count > 0) {
chip->stop_count--;
- if (chip->stop_count == 0) {
+ if (chip->stop_count == 0)
s->async->events |= COMEDI_CB_EOA;
- /* TODO: STOP_ACQUISITION_CALL_HERE!! */
- pcmuio_stop_intr(dev, s);
- }
}
}
done:
spin_unlock_irqrestore(&chip->spinlock, flags);
- if (oldevents != s->async->events)
- comedi_event(dev, s);
+ cfc_handle_events(dev, s);
}
static int pcmuio_handle_asic_interrupt(struct comedi_device *dev, int asic)
--
2.0.3
_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
