Messages in this thread Patch in this message | | | From | H Hartley Sweeten <> | Subject | [PATCH 34/36] staging: comedi: cb_pcidas: cleanup cb_pcidas_ao_nofifo_winsn() | Date | Tue, 26 Jun 2012 18:10:59 -0700 |
| |
Create local variables for the channel and range in order to cleanup to mask/set of the ao_control_bits.
Remove the extra space in all the comments.
Return the number of data parameters used (insn->n) to indicate success instead of the open coded '1'.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Cc: Frank Mori Hess <fmhess@users.sourceforge.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/staging/comedi/drivers/cb_pcidas.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index bbbb9e4..b00ccad 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -471,25 +471,25 @@ static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, unsigned int *data) { struct cb_pcidas_private *devpriv = dev->private; - int channel; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int range = CR_RANGE(insn->chanspec); unsigned long flags; - /* set channel and range */ - channel = CR_CHAN(insn->chanspec); + /* set channel and range */ spin_lock_irqsave(&dev->spinlock, flags); - devpriv->ao_control_bits &= - ~DAC_MODE_UPDATE_BOTH & ~DAC_RANGE_MASK(channel); - devpriv->ao_control_bits |= - DACEN | DAC_RANGE(channel, CR_RANGE(insn->chanspec)); + devpriv->ao_control_bits &= (~DAC_MODE_UPDATE_BOTH & + ~DAC_RANGE_MASK(chan)); + devpriv->ao_control_bits |= (DACEN | DAC_RANGE(chan, range)); outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); spin_unlock_irqrestore(&dev->spinlock, flags); - /* remember value for readback */ - devpriv->ao_value[channel] = data[0]; - /* send data */ - outw(data[0], devpriv->ao_registers + DAC_DATA_REG(channel)); + /* remember value for readback */ + devpriv->ao_value[chan] = data[0]; + + /* send data */ + outw(data[0], devpriv->ao_registers + DAC_DATA_REG(chan)); - return 1; + return insn->n; } /* analog output insn for pcidas-1602 series */ -- 1.7.11
| |