From cdf434eef11dc3a9e820de8fd6a6a397da490cd9 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 30 Aug 2013 11:46:11 -0700 Subject: [PATCH] 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 Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- 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) { -- 2.7.4