Flesh out the (*do_cmd) function to support 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 | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index ed00ef2..e4dedc7 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -256,7 +256,25 @@ static void das6402_ai_set_mode(struct comedi_device *dev,
static int das6402_ai_cmd(struct comedi_device *dev,
struct comedi_subdevice *s)
{
- return -EINVAL;
+ struct das6402_private *devpriv = dev->private;
+ struct comedi_cmd *cmd = &s->async->cmd;
+ unsigned int chan_lo = CR_CHAN(cmd->chanlist[0]);
+ unsigned int chan_hi = CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]);
+
+ das6402_ai_set_mode(dev, s, cmd->chanlist[0], DAS6402_MODE_FIFONEPTY);
+
+ /* load the mux for chanlist conversion */
+ outw(DAS6402_AI_MUX_HI(chan_hi) | DAS6402_AI_MUX_LO(chan_lo),
+ dev->iobase + DAS6402_AI_MUX_REG);
+
+ das6402_enable_counter(dev, true);
+
+ /* enable interrupt and pacer trigger */
+ outb(DAS6402_CTRL_INTE |
+ DAS6402_CTRL_IRQ(devpriv->irq) |
+ DAS6402_CTRL_PACER_TRIG, dev->iobase + DAS6402_CTRL_REG);
+
+ return 0;
}
static int das6402_ai_check_chanlist(struct comedi_device *dev,
--
2.0.3
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
