diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_6527.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_6527.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c index c2745f201f2c..44557c9671ac 100644 --- a/drivers/staging/comedi/drivers/ni_6527.c +++ b/drivers/staging/comedi/drivers/ni_6527.c @@ -163,29 +163,29 @@ static int ni6527_di_insn_bits(struct comedi_device *dev, static int ni6527_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { struct ni6527_private *devpriv = dev->private; + unsigned int mask; - if (data[0]) { - s->state &= ~data[0]; - s->state |= (data[0] & data[1]); - - /* The open relay state on the board cooresponds to 1, - * but in Comedi, it is represented by 0. */ - if (data[0] & 0x0000ff) { - writeb((s->state ^ 0xff), + mask = comedi_dio_update_state(s, data); + if (mask) { + /* Outputs are inverted */ + if (mask & 0x0000ff) { + writeb(s->state ^ 0xff, devpriv->mite->daq_io_addr + Port_Register(3)); } - if (data[0] & 0x00ff00) { + if (mask & 0x00ff00) { writeb((s->state >> 8) ^ 0xff, devpriv->mite->daq_io_addr + Port_Register(4)); } - if (data[0] & 0xff0000) { + if (mask & 0xff0000) { writeb((s->state >> 16) ^ 0xff, devpriv->mite->daq_io_addr + Port_Register(5)); } } + data[1] = s->state; return insn->n; |