static int apci1032_auto_attach(struct comedi_device *dev,
unsigned long context_unused)
{
struct pci_dev *pcidev = comedi_to_pci_dev(dev);
struct apci1032_private *devpriv;
struct comedi_subdevice *s;
int ret;
devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
if (!devpriv)
return -ENOMEM;
ret = comedi_pci_enable(dev);
if (ret)
return ret;
devpriv->amcc_iobase = pci_resource_start(pcidev, 0);
dev->iobase = pci_resource_start(pcidev, 1);
apci1032_reset(dev);
if (pcidev->irq > 0) {
ret = request_irq(pcidev->irq, apci1032_interrupt, IRQF_SHARED,
dev->board_name, dev);
if (ret == 0)
dev->irq = pcidev->irq;
}
ret = comedi_alloc_subdevices(dev, 2);
if (ret)
return ret;
/* Allocate and Initialise DI Subdevice Structures */
s = &dev->subdevices[0];
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE;
s->n_chan = 32;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = apci1032_di_insn_bits;
/* Change-Of-State (COS) interrupt subdevice */
s = &dev->subdevices[1];
if (dev->irq) {
dev->read_subdev = s;
s->type = COMEDI_SUBD_DI;
s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
s->n_chan = 1;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_config = apci1032_cos_insn_config;
s->insn_bits = apci1032_cos_insn_bits;
s->len_chanlist = 1;
s->do_cmdtest = apci1032_cos_cmdtest;
s->do_cmd = apci1032_cos_cmd;
s->cancel = apci1032_cos_cancel;
} else {
s->type = COMEDI_SUBD_UNUSED;
}
return 0;
}
static void apci1032_detach(struct comedi_device *dev)
{
if (dev->iobase)
apci1032_reset(dev);
if (dev->irq)
free_irq(dev->irq, dev);
comedi_pci_disable(dev);
}
static void apci1032_detach(struct comedi_device *dev)
{
if (dev->iobase)
apci1032_reset(dev);
comedi_pci_detach(dev);
}
static int apci1032_cos_cancel(struct comedi_device *dev,
struct comedi_subdevice *s)
{
return apci1032_reset(dev);
}
static int apci1032_cos_insn_config(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
struct apci1032_private *devpriv = dev->private;
unsigned int shift, oldmask;
switch (data[0]) {
case INSN_CONFIG_DIGITAL_TRIG:
if (data[1] != 0)
return -EINVAL;
shift = data[3];
oldmask = (1U << shift) - 1;
switch (data[2]) {
case COMEDI_DIGITAL_TRIG_DISABLE:
devpriv->ctrl = 0;
devpriv->mode1 = 0;
devpriv->mode2 = 0;
apci1032_reset(dev);
break;
case COMEDI_DIGITAL_TRIG_ENABLE_EDGES:
if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
APCI1032_CTRL_INT_OR)) {
/* switching to 'OR' mode */
devpriv->ctrl = APCI1032_CTRL_INT_ENA |
APCI1032_CTRL_INT_OR;
/* wipe old channels */
devpriv->mode1 = 0;
devpriv->mode2 = 0;
} else {
/* preserve unspecified channels */
devpriv->mode1 &= oldmask;
devpriv->mode2 &= oldmask;
}
/* configure specified channels */
devpriv->mode1 |= data[4] << shift;
devpriv->mode2 |= data[5] << shift;
break;
case COMEDI_DIGITAL_TRIG_ENABLE_LEVELS:
if (devpriv->ctrl != (APCI1032_CTRL_INT_ENA |
APCI1032_CTRL_INT_AND)) {
/* switching to 'AND' mode */
devpriv->ctrl = APCI1032_CTRL_INT_ENA |
APCI1032_CTRL_INT_AND;
/* wipe old channels */
devpriv->mode1 = 0;
devpriv->mode2 = 0;
} else {
/* preserve unspecified channels */
devpriv->mode1 &= oldmask;
devpriv->mode2 &= oldmask;
}
/* configure specified channels */
devpriv->mode1 |= data[4] << shift;
devpriv->mode2 |= data[5] << shift;
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
return insn->n;
}
