diff options
author | H Hartley Sweeten <hartleys@visionengravers.com> | 2012-05-22 16:52:00 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-04 20:30:04 -0700 |
commit | 90d662e3f1b42145f6d1ae9e58a423c859ed284d (patch) | |
tree | d34edc28fe87db9ffb09b171839b804fbf3caf71 | |
parent | f21b15be885ca3e14199773c9a9f52c90804fdb9 (diff) | |
download | linux-90d662e3f1b42145f6d1ae9e58a423c859ed284d.tar.bz2 |
staging: comedi: remove this_board macro in the pcl711 driver
The 'this_board' macro depends on having a local variable with
a magic name. The CodingStyle document suggests not doing this
to avoid confusion. Remove the macro and use the comedi_board()
inline helper to get the dev->board_ptr information.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/staging/comedi/drivers/pcl711.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c index 2e7753f988aa..e943b52d04a8 100644 --- a/drivers/staging/comedi/drivers/pcl711.c +++ b/drivers/staging/comedi/drivers/pcl711.c @@ -148,8 +148,6 @@ struct pcl711_board { const struct comedi_lrange *ai_range_type; }; -#define this_board ((const struct pcl711_board *)dev->board_ptr) - struct pcl711_private { int board; @@ -169,6 +167,7 @@ static irqreturn_t pcl711_interrupt(int irq, void *d) int lo, hi; int data; struct comedi_device *dev = d; + const struct pcl711_board *board = comedi_board(dev); struct comedi_subdevice *s = dev->subdevices + 0; if (!dev->attached) { @@ -184,7 +183,7 @@ static irqreturn_t pcl711_interrupt(int irq, void *d) /* FIXME! Nothing else sets ntrig! */ if (!(--devpriv->ntrig)) { - if (this_board->is_8112) + if (board->is_8112) outb(1, dev->iobase + PCL711_MODE); else outb(0, dev->iobase + PCL711_MODE); @@ -197,13 +196,14 @@ static irqreturn_t pcl711_interrupt(int irq, void *d) static void pcl711_set_changain(struct comedi_device *dev, int chan) { + const struct pcl711_board *board = comedi_board(dev); int chan_register; outb(CR_RANGE(chan), dev->iobase + PCL711_GAIN); chan_register = CR_CHAN(chan); - if (this_board->is_8112) { + if (board->is_8112) { /* * Set the correct channel. The two channel banks are switched @@ -225,6 +225,7 @@ static void pcl711_set_changain(struct comedi_device *dev, int chan) static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data) { + const struct pcl711_board *board = comedi_board(dev); int i, n; int hi, lo; @@ -237,7 +238,7 @@ static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s, */ outb(1, dev->iobase + PCL711_MODE); - if (!this_board->is_8112) + if (!board->is_8112) outb(0, dev->iobase + PCL711_SOFTTRIG); i = PCL711_TIMEOUT; @@ -481,6 +482,7 @@ static int pcl711_do_insn_bits(struct comedi_device *dev, static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) { + const struct pcl711_board *board = comedi_board(dev); int ret; unsigned long iobase; unsigned int irq; @@ -498,12 +500,11 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) /* there should be a sanity check here */ - /* set up some name stuff */ - dev->board_name = this_board->name; + dev->board_name = board->name; /* grab our IRQ */ irq = it->options[1]; - if (irq > this_board->maxirq) { + if (irq > board->maxirq) { printk(KERN_ERR "irq out of range\n"); return -EINVAL; } @@ -529,10 +530,10 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) /* AI subdevice */ s->type = COMEDI_SUBD_AI; s->subdev_flags = SDF_READABLE | SDF_GROUND; - s->n_chan = this_board->n_aichan; + s->n_chan = board->n_aichan; s->maxdata = 0xfff; s->len_chanlist = 1; - s->range_table = this_board->ai_range_type; + s->range_table = board->ai_range_type; s->insn_read = pcl711_ai_insn; if (irq) { dev->read_subdev = s; @@ -545,7 +546,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) /* AO subdevice */ s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; - s->n_chan = this_board->n_aochan; + s->n_chan = board->n_aochan; s->maxdata = 0xfff; s->len_chanlist = 1; s->range_table = &range_bipolar5; @@ -577,7 +578,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) this is the "base value" for the mode register, which is used for the irq on the PCL711 */ - if (this_board->is_pcl711b) + if (board->is_pcl711b) devpriv->mode = (dev->irq << 4); /* clear DAC */ |