Rename this function to better describe it's use.
Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.
Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/comedi/drivers/comedi_parport.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 8394b7e..d720f27 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -140,20 +140,20 @@ static int parport_status_reg_insn_bits(struct comedi_device *dev,
return insn->n;
}
-static int parport_insn_c(struct comedi_device *dev, struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+static int parport_ctrl_reg_insn_bits(struct comedi_device *dev,
+ struct comedi_subdevice *s,
+ struct comedi_insn *insn,
+ unsigned int *data)
{
struct parport_private *devpriv = dev->private;
- data[0] &= 0x0f;
- if (data[0]) {
- devpriv->c_data &= ~data[0];
- devpriv->c_data |= (data[0] & data[1]);
-
+ if (comedi_dio_update_state(s, data)) {
+ devpriv->c_data &= ~((1 << s->n_chan) - 1);
+ devpriv->c_data |= s->state;
outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
}
- data[1] = devpriv->c_data & 0xf;
+ data[1] = s->state;
return insn->n;
}
@@ -304,7 +304,7 @@ static int parport_attach(struct comedi_device *dev,
s->n_chan = 4;
s->maxdata = 1;
s->range_table = &range_digital;
- s->insn_bits = parport_insn_c;
+ s->insn_bits = parport_ctrl_reg_insn_bits;
s = &dev->subdevices[3];
if (irq) {
--
1.8.3.2
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