diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/pcl726.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/pcl726.c | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c index d25c30c694e3..2b10f1d83085 100644 --- a/drivers/staging/comedi/drivers/pcl726.c +++ b/drivers/staging/comedi/drivers/pcl726.c @@ -145,8 +145,6 @@ static const struct pcl726_board boardtypes[] = { &rangelist_728[0],}, }; -#define this_board ((const struct pcl726_board *)dev->board_ptr) - struct pcl726_private { int bipolar[12]; @@ -197,38 +195,37 @@ static int pcl726_di_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { - if (insn->n != 2) - return -EINVAL; + const struct pcl726_board *board = comedi_board(dev); - data[1] = inb(dev->iobase + this_board->di_lo) | - (inb(dev->iobase + this_board->di_hi) << 8); + data[1] = inb(dev->iobase + board->di_lo) | + (inb(dev->iobase + board->di_hi) << 8); - return 2; + return insn->n; } static int pcl726_do_insn_bits(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { - if (insn->n != 2) - return -EINVAL; + const struct pcl726_board *board = comedi_board(dev); if (data[0]) { s->state &= ~data[0]; s->state |= data[0] & data[1]; } if (data[1] & 0x00ff) - outb(s->state & 0xff, dev->iobase + this_board->do_lo); + outb(s->state & 0xff, dev->iobase + board->do_lo); if (data[1] & 0xff00) - outb((s->state >> 8), dev->iobase + this_board->do_hi); + outb((s->state >> 8), dev->iobase + board->do_hi); data[1] = s->state; - return 2; + return insn->n; } static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + const struct pcl726_board *board = comedi_board(dev); struct comedi_subdevice *s; unsigned long iobase; unsigned int iorange; @@ -238,9 +235,9 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) #endif iobase = it->options[0]; - iorange = this_board->io_range; + iorange = board->io_range; printk(KERN_WARNING "comedi%d: pcl726: board=%s, 0x%03lx ", dev->minor, - this_board->name, iobase); + board->name, iobase); if (!request_region(iobase, iorange, "pcl726")) { printk(KERN_WARNING "I/O port conflict\n"); return -EIO; @@ -248,7 +245,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->iobase = iobase; - dev->board_name = this_board->name; + dev->board_name = board->name; ret = alloc_private(dev, sizeof(struct pcl726_private)); if (ret < 0) @@ -289,31 +286,31 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) printk("\n"); - ret = alloc_subdevices(dev, 3); - if (ret < 0) + ret = comedi_alloc_subdevices(dev, 3); + if (ret) return ret; s = dev->subdevices + 0; /* ao */ s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE | SDF_GROUND; - s->n_chan = this_board->n_aochan; + s->n_chan = board->n_aochan; s->maxdata = 0xfff; s->len_chanlist = 1; s->insn_write = pcl726_ao_insn; s->insn_read = pcl726_ao_insn_read; s->range_table_list = devpriv->rangelist; - for (i = 0; i < this_board->n_aochan; i++) { + for (i = 0; i < board->n_aochan; i++) { int j; j = it->options[2 + 1]; - if ((j < 0) || (j >= this_board->num_of_ranges)) { + if ((j < 0) || (j >= board->num_of_ranges)) { printk ("Invalid range for channel %d! Must be 0<=%d<%d\n", - i, j, this_board->num_of_ranges - 1); + i, j, board->num_of_ranges - 1); j = 0; } - devpriv->rangelist[i] = this_board->range_type_list[j]; + devpriv->rangelist[i] = board->range_type_list[j]; if (devpriv->rangelist[i]->range[0].min == -devpriv->rangelist[i]->range[0].max) devpriv->bipolar[i] = 1; /* bipolar range */ @@ -321,7 +318,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) s = dev->subdevices + 1; /* di */ - if (!this_board->have_dio) { + if (!board->have_dio) { s->type = COMEDI_SUBD_UNUSED; } else { s->type = COMEDI_SUBD_DI; @@ -335,7 +332,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) s = dev->subdevices + 2; /* do */ - if (!this_board->have_dio) { + if (!board->have_dio) { s->type = COMEDI_SUBD_UNUSED; } else { s->type = COMEDI_SUBD_DO; @@ -352,12 +349,14 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it) static void pcl726_detach(struct comedi_device *dev) { + const struct pcl726_board *board = comedi_board(dev); + #ifdef ACL6126_IRQ if (dev->irq) free_irq(dev->irq, dev); #endif if (dev->iobase) - release_region(dev->iobase, this_board->io_range); + release_region(dev->iobase, board->io_range); } static struct comedi_driver pcl726_driver = { |