Module: xenomai-2.5
Branch: master
Commit: dba6c40fa35a10482a0c00bf54a8b839209579e3
URL:
http://git.xenomai.org/?p=xenomai-2.5.git;a=commit;h=dba6c40fa35a10482a0c00bf54a8b839209579e3
Author: Alexis Berlemont <alexis.berlem...@gmail.com>
Date: Sat Sep 4 17:42:49 2010 +0200
analogy: [pcimio] add the initialization of the ring for gpct subd
---
.../analogy/national_instruments/mio_common.c | 14 +++++++++++++-
1 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/ksrc/drivers/analogy/national_instruments/mio_common.c
b/ksrc/drivers/analogy/national_instruments/mio_common.c
index 17aa1f5..be10312 100644
--- a/ksrc/drivers/analogy/national_instruments/mio_common.c
+++ b/ksrc/drivers/analogy/national_instruments/mio_common.c
@@ -4486,6 +4486,7 @@ static int ni_gpct_cmd(a4l_subd_t *subd, a4l_cmd_t *cmd)
int retval;
a4l_dev_t *dev = subd->dev;
struct ni_gpct *counter = (struct ni_gpct *)subd->priv;
+ struct mite_dma_descriptor_ring *ring;
retval = ni_request_gpct_mite_channel(dev,
counter->counter_index,
@@ -4493,9 +4494,20 @@ static int ni_gpct_cmd(a4l_subd_t *subd, a4l_cmd_t *cmd)
if (retval) {
a4l_err(dev,
"ni_gpct_cmd: "
- "no dma channel available for use by counter");
+ "no dma channel available for use by counter\n");
return retval;
}
+
+ ring = devpriv->gpct_mite_ring[counter->counter_index];
+ retval = mite_buf_change(ring, subd);
+ if (retval) {
+ a4l_err(dev,
+ "ni_gpct_cmd: "
+ "dma ring configuration failed\n");
+ return retval;
+
+ }
+
ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL, NULL);
ni_e_series_enable_second_irq(dev, counter->counter_index, 1);
retval = ni_tio_cmd(counter, cmd);
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