diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/cb_das16_cs.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/cb_das16_cs.c | 36 |
1 files changed, 12 insertions, 24 deletions
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c index ae9a2082b5a4..0ce93da70847 100644 --- a/drivers/staging/comedi/drivers/cb_das16_cs.c +++ b/drivers/staging/comedi/drivers/cb_das16_cs.c @@ -34,8 +34,8 @@ Status: experimental */ +#include <linux/module.h> #include <linux/interrupt.h> -#include <linux/slab.h> #include <linux/delay.h> #include "../comedidev.h" @@ -341,33 +341,22 @@ static int das16cs_dio_insn_bits(struct comedi_device *dev, static int das16cs_dio_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { struct das16cs_private *devpriv = dev->private; - int chan = CR_CHAN(insn->chanspec); - int bits; + unsigned int chan = CR_CHAN(insn->chanspec); + unsigned int mask; + int ret; if (chan < 4) - bits = 0x0f; + mask = 0x0f; else - bits = 0xf0; + mask = 0xf0; - switch (data[0]) { - case INSN_CONFIG_DIO_OUTPUT: - s->io_bits |= bits; - break; - case INSN_CONFIG_DIO_INPUT: - s->io_bits &= bits; - break; - case INSN_CONFIG_DIO_QUERY: - data[1] = - (s->io_bits & (1 << chan)) ? COMEDI_OUTPUT : COMEDI_INPUT; - return insn->n; - break; - default: - return -EINVAL; - break; - } + ret = comedi_dio_insn_config(dev, s, insn, data, mask); + if (ret) + return ret; devpriv->status2 &= ~0x00c0; devpriv->status2 |= (s->io_bits & 0xf0) ? 0x0080 : 0; @@ -420,10 +409,9 @@ static int das16cs_auto_attach(struct comedi_device *dev, return ret; dev->irq = link->irq; - devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); + devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv)); if (!devpriv) return -ENOMEM; - dev->private = devpriv; ret = comedi_alloc_subdevices(dev, 3); if (ret) |