[PATCH 10/13] staging: comedi: ni_mio_common: create device-global access to tio

Spencer E. Olson olsonse at umich.edu
Wed Sep 19 16:38:54 UTC 2018


Adds tio sub-devices of ni_mio_common supported hardware to the
implementation of test_route, connect_route, disconnect_route.  This change
delegates the actual functionality to the ni_tio module.

Signed-off-by: Spencer E. Olson <olsonse at umich.edu>
---
 drivers/staging/comedi/drivers/ni_mio_common.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index d7862787e064..ecb05b3f9d35 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -5620,6 +5620,8 @@ static int get_output_select_source(int dest, struct comedi_device *dev)
 			/* there are only two g_out outputs. */
 			return -EINVAL;
 		reg = ni_get_gout_routing(dest, dev);
+	} else if (channel_is_ctr(dest)) {
+		reg = ni_tio_get_routing(devpriv->counter_dev, dest);
 	} else {
 		dev_dbg(dev->class_dev, "%s: unhandled destination (%d) queried\n",
 			__func__, dest);
@@ -5708,6 +5710,13 @@ static int connect_route(unsigned int src, unsigned int dest,
 			return -EINVAL;
 		if (ni_set_gout_routing(src, dest, dev))
 			return -EINVAL;
+	} else if (channel_is_ctr(dest)) {
+		/*
+		 * we are adding back the channel modifier info to set
+		 * invert/edge info passed by the user
+		 */
+		ni_tio_set_routing(devpriv->counter_dev, dest,
+				   reg | (src & ~CR_CHAN(-1)));
 	} else {
 		return -EINVAL;
 	}
@@ -5766,6 +5775,8 @@ static int disconnect_route(unsigned int src, unsigned int dest,
 			/* there are only two g_out outputs. */
 			return -EINVAL;
 		reg = ni_disable_gout_routing(dest, dev);
+	} else if (channel_is_ctr(dest)) {
+		ni_tio_unset_routing(devpriv->counter_dev, dest);
 	} else {
 		return -EINVAL;
 	}
-- 
2.17.1



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