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staging: comedi: remove this_board macro in the pcl816 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>
This commit is contained in:
H Hartley Sweeten 2012-05-22 17:14:14 -07:00 committed by Greg Kroah-Hartman
parent dd8a4b4788
commit 240c6e6a71
1 changed files with 37 additions and 34 deletions
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71
drivers/staging/comedi/drivers/pcl816.c
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@ -126,7 +126,6 @@ struct pcl816_board {
};
#define devpriv ((struct pcl816_private *)dev->private)
#define this_board ((const struct pcl816_board *)dev->board_ptr)
#ifdef unused
static int RTC_lock; /* RTC lock */
@ -451,6 +450,7 @@ static void pcl816_cmdtest_out(int e, struct comedi_cmd *cmd)
static int pcl816_ai_cmdtest(struct comedi_device *dev,
struct comedi_subdevice *s, struct comedi_cmd *cmd)
{
const struct pcl816_board *board = comedi_board(dev);
int err = 0;
int tmp, divisor1 = 0, divisor2 = 0;
@ -531,8 +531,8 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev,
err++;
}
if (cmd->convert_src == TRIG_TIMER) {
if (cmd->convert_arg < this_board->ai_ns_min) {
cmd->convert_arg = this_board->ai_ns_min;
if (cmd->convert_arg < board->ai_ns_min) {
cmd->convert_arg = board->ai_ns_min;
err++;
}
} else { /* TRIG_EXT */
@ -565,12 +565,12 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev,
/* step 4: fix up any arguments */
if (cmd->convert_src == TRIG_TIMER) {
tmp = cmd->convert_arg;
i8253_cascade_ns_to_timer(this_board->i8254_osc_base,
i8253_cascade_ns_to_timer(board->i8254_osc_base,
&divisor1, &divisor2,
&cmd->convert_arg,
cmd->flags & TRIG_ROUND_MASK);
if (cmd->convert_arg < this_board->ai_ns_min)
cmd->convert_arg = this_board->ai_ns_min;
if (cmd->convert_arg < board->ai_ns_min)
cmd->convert_arg = board->ai_ns_min;
if (tmp != cmd->convert_arg)
err++;
}
@ -592,6 +592,7 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev,
static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
{
const struct pcl816_board *board = comedi_board(dev);
unsigned int divisor1 = 0, divisor2 = 0, dma_flags, bytes, dmairq;
struct comedi_cmd *cmd = &s->async->cmd;
unsigned int seglen;
@ -609,10 +610,10 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
return -EBUSY;
if (cmd->convert_src == TRIG_TIMER) {
if (cmd->convert_arg < this_board->ai_ns_min)
cmd->convert_arg = this_board->ai_ns_min;
if (cmd->convert_arg < board->ai_ns_min)
cmd->convert_arg = board->ai_ns_min;
i8253_cascade_ns_to_timer(this_board->i8254_osc_base, &divisor1,
i8253_cascade_ns_to_timer(board->i8254_osc_base, &divisor1,
&divisor2, &cmd->convert_arg,
cmd->flags & TRIG_ROUND_MASK);
@ -1028,6 +1029,7 @@ static int set_rtc_irq_bit(unsigned char bit)
static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
const struct pcl816_board *board = comedi_board(dev);
int ret;
unsigned long iobase;
unsigned int irq, dma;
@ -1038,9 +1040,9 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
/* claim our I/O space */
iobase = it->options[0];
printk("comedi%d: pcl816: board=%s, ioport=0x%03lx", dev->minor,
this_board->name, iobase);
board->name, iobase);
if (!request_region(iobase, this_board->io_range, "pcl816")) {
if (!request_region(iobase, board->io_range, "pcl816")) {
printk("I/O port conflict\n");
return -EIO;
}
@ -1056,15 +1058,14 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
if (ret < 0)
return ret; /* Can't alloc mem */
/* set up some name stuff */
dev->board_name = this_board->name;
dev->board_name = board->name;
/* grab our IRQ */
irq = 0;
if (this_board->IRQbits != 0) { /* board support IRQ */
if (board->IRQbits != 0) { /* board support IRQ */
irq = it->options[1];
if (irq) { /* we want to use IRQ */
if (((1 << irq) & this_board->IRQbits) == 0) {
if (((1 << irq) & board->IRQbits) == 0) {
printk
(", IRQ %u is out of allowed range, "
"DISABLING IT", irq);
@ -1134,12 +1135,12 @@ no_rtc:
if ((devpriv->irq_free == 0) && (devpriv->dma_rtc == 0))
goto no_dma; /* if we haven't IRQ, we can't use DMA */
if (this_board->DMAbits != 0) { /* board support DMA */
if (board->DMAbits != 0) { /* board support DMA */
dma = it->options[2];
if (dma < 1)
goto no_dma; /* DMA disabled */
if (((1 << dma) & this_board->DMAbits) == 0) {
if (((1 << dma) & board->DMAbits) == 0) {
printk(", DMA is out of allowed range, FAIL!\n");
return -EINVAL; /* Bad DMA */
}
@ -1185,11 +1186,11 @@ no_rtc:
no_dma:
/* if (this_board->n_aochan > 0)
/* if (board->n_aochan > 0)
subdevs[1] = COMEDI_SUBD_AO;
if (this_board->n_dichan > 0)
if (board->n_dichan > 0)
subdevs[2] = COMEDI_SUBD_DI;
if (this_board->n_dochan > 0)
if (board->n_dochan > 0)
subdevs[3] = COMEDI_SUBD_DO;
*/
@ -1198,17 +1199,17 @@ no_dma:
return ret;
s = dev->subdevices + 0;
if (this_board->n_aichan > 0) {
if (board->n_aichan > 0) {
s->type = COMEDI_SUBD_AI;
devpriv->sub_ai = s;
dev->read_subdev = s;
s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
s->n_chan = this_board->n_aichan;
s->n_chan = board->n_aichan;
s->subdev_flags |= SDF_DIFF;
/* printk (", %dchans DIFF DAC - %d", s->n_chan, i); */
s->maxdata = this_board->ai_maxdata;
s->len_chanlist = this_board->ai_chanlist;
s->range_table = this_board->ai_range_type;
s->maxdata = board->ai_maxdata;
s->len_chanlist = board->ai_chanlist;
s->range_table = board->ai_range_type;
s->cancel = pcl816_ai_cancel;
s->do_cmdtest = pcl816_ai_cmdtest;
s->do_cmd = pcl816_ai_cmd;
@ -1221,25 +1222,25 @@ no_dma:
#if 0
case COMEDI_SUBD_AO:
s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
s->n_chan = this_board->n_aochan;
s->maxdata = this_board->ao_maxdata;
s->len_chanlist = this_board->ao_chanlist;
s->range_table = this_board->ao_range_type;
s->n_chan = board->n_aochan;
s->maxdata = board->ao_maxdata;
s->len_chanlist = board->ao_chanlist;
s->range_table = board->ao_range_type;
break;
case COMEDI_SUBD_DI:
s->subdev_flags = SDF_READABLE;
s->n_chan = this_board->n_dichan;
s->n_chan = board->n_dichan;
s->maxdata = 1;
s->len_chanlist = this_board->n_dichan;
s->len_chanlist = board->n_dichan;
s->range_table = &range_digital;
break;
case COMEDI_SUBD_DO:
s->subdev_flags = SDF_WRITABLE;
s->n_chan = this_board->n_dochan;
s->n_chan = board->n_dochan;
s->maxdata = 1;
s->len_chanlist = this_board->n_dochan;
s->len_chanlist = board->n_dochan;
s->range_table = &range_digital;
break;
#endif
@ -1253,6 +1254,8 @@ case COMEDI_SUBD_DO:
static void pcl816_detach(struct comedi_device *dev)
{
const struct pcl816_board *board = comedi_board(dev);
if (dev->private) {
pcl816_ai_cancel(dev, devpriv->sub_ai);
pcl816_reset(dev);
@ -1275,7 +1278,7 @@ static void pcl816_detach(struct comedi_device *dev)
if (dev->irq)
free_irq(dev->irq, dev);
if (dev->iobase)
release_region(dev->iobase, this_board->io_range);
release_region(dev->iobase, board->io_range);
#ifdef unused
if (devpriv->dma_rtc)
RTC_lock--;