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| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2013-08-30 18:46:11 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-17 14:47:42 (GMT) |
| commit | cdf434eef11dc3a9e820de8fd6a6a397da490cd9 (patch) | |
| tree | 82c9649d5b1af84c3046c7df40c65bb5f0f01506 /drivers | |
| parent | 6e2dbe3c6c7736592310b80bccf7c5c09614e72f (diff) | |
| download | linux-fsl-qoriq-cdf434eef11dc3a9e820de8fd6a6a397da490cd9.tar.xz | |
staging: comedi: comedi_parport: tidy up parport_insn_c()
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@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/comedi/drivers/comedi_parport.c | 18 |
1 files 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) { |