This member of the boardinfo isn't really necessary. All the boards
have analog inputs, the pci1713 has 32 channels the rest have 16
channels.
There is already a 'is_pci1713' member in the boardinfo so that can
be used to determine the number of channels for the analog input
subdevice.
Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/comedi/drivers/adv_pci1710.c | 61 ++++++++++++----------------
1 file changed, 26 insertions(+), 35 deletions(-)
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index ed6c9fb..8d205ae 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -127,7 +127,6 @@ enum pci1710_boardid {
struct boardtype {
const char *name; /* board name */
- int n_aichan; /* num of A/D chans */
const struct comedi_lrange *rangelist_ai; /* rangelist for A/D */
unsigned int is_pci1713:1;
unsigned int has_large_fifo:1; /* 4K or 1K FIFO */
@@ -139,7 +138,6 @@ struct boardtype {
static const struct boardtype boardtypes[] = {
[BOARD_PCI1710] = {
.name = "pci1710",
- .n_aichan = 16,
.rangelist_ai = &pci1710_ai_range,
.has_large_fifo = 1,
.has_diff_ai = 1,
@@ -148,7 +146,6 @@ static const struct boardtype boardtypes[] = {
},
[BOARD_PCI1710HG] = {
.name = "pci1710hg",
- .n_aichan = 16,
.rangelist_ai = &pci1710hg_ai_range,
.has_large_fifo = 1,
.has_diff_ai = 1,
@@ -157,14 +154,12 @@ static const struct boardtype boardtypes[] = {
},
[BOARD_PCI1711] = {
.name = "pci1711",
- .n_aichan = 16,
.rangelist_ai = &pci1711_ai_range,
.has_ao = 1,
.has_di_do = 1,
},
[BOARD_PCI1713] = {
.name = "pci1713",
- .n_aichan = 32,
.rangelist_ai = &pci1710_ai_range,
.is_pci1713 = 1,
.has_large_fifo = 1,
@@ -172,7 +167,6 @@ static const struct boardtype boardtypes[] = {
},
[BOARD_PCI1731] = {
.name = "pci1731",
- .n_aichan = 16,
.rangelist_ai = &pci1711_ai_range,
.has_di_do = 1,
},
@@ -777,9 +771,7 @@ static int pci1710_auto_attach(struct comedi_device *dev,
if (!dev->pacer)
return -ENOMEM;
- n_subdevices = 0;
- if (board->n_aichan)
- n_subdevices++;
+ n_subdevices = 1; /* all boards have analog inputs */
if (board->has_ao)
n_subdevices++;
if (board->has_di_do)
@@ -802,36 +794,35 @@ static int pci1710_auto_attach(struct comedi_device *dev,
subdev = 0;
- if (board->n_aichan) {
- s = &dev->subdevices[subdev];
- s->type = COMEDI_SUBD_AI;
- s->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_GROUND;
- if (board->has_diff_ai)
- s->subdev_flags |= SDF_DIFF;
- s->n_chan = board->n_aichan;
- s->maxdata = 0x0fff;
- s->range_table = board->rangelist_ai;
- s->insn_read = pci171x_ai_insn_read;
- if (dev->irq) {
- dev->read_subdev = s;
- s->subdev_flags |= SDF_CMD_READ;
- s->len_chanlist = s->n_chan;
- s->do_cmdtest = pci171x_ai_cmdtest;
- s->do_cmd = pci171x_ai_cmd;
- s->cancel = pci171x_ai_cancel;
- }
+ /* Analog Input subdevice */
+ s = &dev->subdevices[subdev];
+ s->type = COMEDI_SUBD_AI;
+ s->subdev_flags = SDF_READABLE | SDF_COMMON | SDF_GROUND;
+ if (board->has_diff_ai)
+ s->subdev_flags |= SDF_DIFF;
+ s->n_chan = board->is_pci1713 ? 32 : 16;
+ s->maxdata = 0x0fff;
+ s->range_table = board->rangelist_ai;
+ s->insn_read = pci171x_ai_insn_read;
+ if (dev->irq) {
+ dev->read_subdev = s;
+ s->subdev_flags |= SDF_CMD_READ;
+ s->len_chanlist = s->n_chan;
+ s->do_cmdtest = pci171x_ai_cmdtest;
+ s->do_cmd = pci171x_ai_cmd;
+ s->cancel = pci171x_ai_cancel;
+ }
- /* find the value needed to adjust for unipolar gain codes */
- for (i = 0; i < s->range_table->length; i++) {
- if (comedi_range_is_unipolar(s, i)) {
- devpriv->unipolar_gain = i;
- break;
- }
+ /* find the value needed to adjust for unipolar gain codes */
+ for (i = 0; i < s->range_table->length; i++) {
+ if (comedi_range_is_unipolar(s, i)) {
+ devpriv->unipolar_gain = i;
+ break;
}
-
- subdev++;
}
+ subdev++;
+
if (board->has_ao) {
s = &dev->subdevices[subdev];
s->type = COMEDI_SUBD_AO;
--
2.5.1
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