On 12/11/14 23:00, H Hartley Sweeten wrote:
Currently the async command support in this driver consists of just the
stubbed in functions.
Flesh out the (*do_cmdtest) function for basic support of timed analog
input acquisitions.
Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/comedi/drivers/das6402.c | 105 ++++++++++++++++++++++++++++++-
1 file changed, 104 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index f3909f3..511b6b3 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -35,6 +35,7 @@
#include <linux/interrupt.h>
#include "../comedidev.h"
+#include "comedi_fc.h"
#include "8253.h"
/*
@@ -207,11 +208,113 @@ static int das6402_ai_cmd(struct comedi_device *dev,
return -EINVAL;
}
+static int das6402_ai_check_chanlist(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_cmd *cmd)
+{
+ unsigned int chan0 = CR_CHAN(cmd->chanlist[0]);
+ unsigned int range0 = CR_RANGE(cmd->chanlist[0]);
+ unsigned int aref0 = CR_AREF(cmd->chanlist[0]);
+ int i;
+
+ for (i = 1; i < cmd->chanlist_len; i++) {
+ unsigned int chan = CR_CHAN(cmd->chanlist[i]);
+ unsigned int range = CR_RANGE(cmd->chanlist[i]);
+ unsigned int aref = CR_AREF(cmd->chanlist[i]);
+
+ if (chan != chan0 + i) {
+ dev_dbg(dev->class_dev,
+ "chanlist must be consecutive\n");
+ return -EINVAL;
+ }
+
+ if (range != range0) {
+ dev_dbg(dev->class_dev,
+ "chanlist must have the same range\n");
+ return -EINVAL;
+ }
+
+ if (aref != aref0) {
+ dev_dbg(dev->class_dev,
+ "chanlist must have the reference\n");
Shouldn't that say the _same_ reference?
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@xxxxxxxxx> )=-
-=( Web: http://www.mev.co.uk/ )=-
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