This member of the private data is just a copy of the cmd->stop_arg.
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/pcl816.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/staging/comedi/drivers/pcl816.c
b/drivers/staging/comedi/drivers/pcl816.c
index fde0989..649770f 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -119,8 +119,6 @@ struct pcl816_private {
int next_dma_buf; /* which DMA buffer will be used next round */
long dma_runs_to_end; /* how many we must permorm DMA transfer to
end of record */
unsigned long last_dma_run; /* how many bytes we must transfer on
last DMA page */
-
- unsigned int ai_scans; /* len of scanlist */
unsigned char ai_neverending; /* if=1, then we do neverending record
(you must use cancel()) */
int irq_blocked; /* 1=IRQ now uses any subdev */
int irq_was_now_closed; /* when IRQ finish, there's stored int816_mode
for last interrupt */
@@ -223,6 +221,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq,
void *d)
struct comedi_device *dev = d;
struct pcl816_private *devpriv = dev->private;
struct comedi_subdevice *s = dev->read_subdev;
+ struct comedi_cmd *cmd = &s->async->cmd;
int timeout = 50; /* wait max 50us */
while (timeout--) {
@@ -256,7 +255,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq,
void *d)
if (!devpriv->ai_neverending)
/* all data sampled */
- if (devpriv->ai_act_scan >= devpriv->ai_scans) {
+ if (devpriv->ai_act_scan >= cmd->stop_arg) {
/* all data sampled */
pcl816_ai_cancel(dev, s);
s->async->events |= COMEDI_CB_EOA;
@@ -275,6 +274,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev,
unsigned int bufptr, unsigned int len)
{
struct pcl816_private *devpriv = dev->private;
+ struct comedi_cmd *cmd = &s->async->cmd;
int i;
s->async->events = 0;
@@ -296,7 +296,7 @@ static void transfer_from_dma_buf(struct comedi_device *dev,
if (!devpriv->ai_neverending)
/* all data sampled */
- if (devpriv->ai_act_scan >= devpriv->ai_scans) {
+ if (devpriv->ai_act_scan >= cmd->stop_arg) {
pcl816_ai_cancel(dev, s);
s->async->events |= COMEDI_CB_EOA;
s->async->events |= COMEDI_CB_BLOCK;
@@ -512,13 +512,10 @@ static int pcl816_ai_cmd(struct comedi_device *dev,
struct comedi_subdevice *s)
devpriv->ai_poll_ptr = 0;
devpriv->irq_was_now_closed = 0;
- if (cmd->stop_src == TRIG_COUNT) {
- devpriv->ai_scans = cmd->stop_arg;
+ if (cmd->stop_src == TRIG_COUNT)
devpriv->ai_neverending = 0;
- } else {
- devpriv->ai_scans = 0;
+ else
devpriv->ai_neverending = 1;
- }
if (devpriv->dma) {
bytes = devpriv->hwdmasize[0];
--
1.8.5.2
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