diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/das16m1.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/das16m1.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c index b943c44..187b0a1 100644 --- a/drivers/staging/comedi/drivers/das16m1.c +++ b/drivers/staging/comedi/drivers/das16m1.c @@ -134,7 +134,6 @@ struct das16m1_private_struct { * counter yet (loaded by first sample conversion) */ u16 initial_hw_count; short ai_buffer[FIFO_SIZE]; - unsigned int do_bits; /* saves status of digital output bits */ unsigned int divisor1; /* divides master clock to obtain conversion speed */ unsigned int divisor2; /* divides master clock to obtain conversion speed */ unsigned long extra_iobase; @@ -393,22 +392,13 @@ static int das16m1_di_rbits(struct comedi_device *dev, static int das16m1_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { - struct das16m1_private_struct *devpriv = dev->private; - unsigned int wbits; - - /* only set bits that have been masked */ - data[0] &= 0xf; - wbits = devpriv->do_bits; - /* zero bits that have been masked */ - wbits &= ~data[0]; - /* set masked bits */ - wbits |= data[0] & data[1]; - devpriv->do_bits = wbits; - data[1] = wbits; + if (comedi_dio_update_state(s, data)) + outb(s->state, dev->iobase + DAS16M1_DIO); - outb(devpriv->do_bits, dev->iobase + DAS16M1_DIO); + data[1] = s->state; return insn->n; } @@ -649,7 +639,7 @@ static int das16m1_attach(struct comedi_device *dev, outb(TOTAL_CLEAR, dev->iobase + DAS16M1_8254_FIRST_CNTRL); /* initialize digital output lines */ - outb(devpriv->do_bits, dev->iobase + DAS16M1_DIO); + outb(0, dev->iobase + DAS16M1_DIO); /* set the interrupt level */ if (dev->irq) |
