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staging: comedi: das16: all supported board have digital outputs

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All the boards supported by this driver have digital outputs and all
of then use the same function to handle the (*insn_bits) for the
subdevice.

Remove the 'do_' member from the boardinfo and always initialize the
digital output subdevice during the board attach.

Tidy up the subdevice init a bit as well as the (*insn_bits) function.
Remove SDF_READABLE from the subdev_flags. This is a pure digital output
subdevice and the outputs are not readable.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2013-07-29 13:54:39 -07:00 committed by Greg Kroah-Hartman
parent fb1864ba95
commit 6050cc918d
1 changed files with 23 additions and 49 deletions
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72
drivers/staging/comedi/drivers/das16.c
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@ -343,7 +343,6 @@ struct das16_board {
unsigned int ai_pg;
void *ao;
unsigned int ao_nbits;
void *do_;
unsigned int i8255_offset;
unsigned int i8254_offset;
@ -721,22 +720,22 @@ static int das16_di_insn_bits(struct comedi_device *dev,
return insn->n;
}
static int das16_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
static int das16_do_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
struct comedi_insn *insn,
unsigned int *data)
{
unsigned int wbits;
unsigned int mask = data[0];
unsigned int bits = data[1];
/* only set bits that have been masked */
data[0] &= 0xf;
wbits = s->state;
/* zero bits that have been masked */
wbits &= ~data[0];
/* set masked bits */
wbits |= data[0] & data[1];
s->state = wbits;
data[1] = wbits;
if (mask) {
s->state &= ~mask;
s->state |= (bits & mask);
outb(s->state, dev->iobase + DAS16_DIO);
outb(s->state, dev->iobase + DAS16_DIO);
}
data[1] = s->state;
return insn->n;
}
@ -1155,20 +1154,17 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->range_table = &range_digital;
s->insn_bits = das16_di_insn_bits;
/* Digital Output subdevice */
s = &dev->subdevices[3];
/* do */
if (board->do_) {
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
s->n_chan = 4;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = board->do_;
/* initialize digital output lines */
outb(s->state, dev->iobase + DAS16_DIO);
} else {
s->type = COMEDI_SUBD_UNUSED;
}
s->type = COMEDI_SUBD_DO;
s->subdev_flags = SDF_WRITABLE;
s->n_chan = 4;
s->maxdata = 1;
s->range_table = &range_digital;
s->insn_bits = das16_do_insn_bits;
/* initialize digital output lines */
outb(s->state, dev->iobase + DAS16_DIO);
s = &dev->subdevices[4];
/* 8255 */
@ -1227,7 +1223,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_none,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x10,
.i8254_offset = 0x0c,
.size = 0x14,
@ -1239,7 +1234,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_none,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x10,
.i8254_offset = 0x0c,
.size = 0x14,
@ -1251,7 +1245,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_none,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x10,
.i8254_offset = 0x0c,
.size = 0x14,
@ -1263,7 +1256,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_none,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x10,
.i8254_offset = 0x0c,
.size = 0x14,
@ -1275,7 +1267,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_none,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x10,
.i8254_offset = 0x0c,
.size = 0x14,
@ -1286,7 +1277,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 7692,
.ai_pg = das16_pg_16jr,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0,
.i8254_offset = 0x0c,
.size = 0x10,
@ -1297,7 +1287,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 3300,
.ai_pg = das16_pg_16jr,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0,
.i8254_offset = 0x0c,
.size = 0x10,
@ -1308,7 +1297,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 10000,
.ai_pg = das16_pg_16jr_16,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0,
.i8254_offset = 0x0c,
.size = 0x10,
@ -1319,7 +1307,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 10000,
.ai_pg = das16_pg_16jr_16,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0,
.i8254_offset = 0x0c,
.size = 0x10,
@ -1330,7 +1317,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 20000,
.ai_pg = das16_pg_none,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0x400,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1341,7 +1327,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 10000,
.ai_pg = das16_pg_none,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0x400,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1352,7 +1337,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 10000,
.ai_pg = das16_pg_1601,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0x0,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1363,7 +1347,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 10000,
.ai_pg = das16_pg_1602,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0x0,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1375,7 +1358,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_1601,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x400,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1387,7 +1369,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_1602,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x400,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1398,7 +1379,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 6250,
.ai_pg = das16_pg_1601,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1409,7 +1389,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 6250,
.ai_pg = das16_pg_1602,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1420,7 +1399,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 10000,
.ai_pg = das16_pg_1602,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1432,7 +1410,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_1601,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x400,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1444,7 +1421,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_1602,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x400,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1456,7 +1432,6 @@ static const struct das16_board das16_boards[] = {
.ai_pg = das16_pg_1602,
.ao = das16_ao_winsn,
.ao_nbits = 12,
.do_ = das16_do_wbits,
.i8255_offset = 0x400,
.i8254_offset = 0x0c,
.size = 0x408,
@ -1467,7 +1442,6 @@ static const struct das16_board das16_boards[] = {
.ai_speed = 3030,
.ai_pg = das16_pg_16jr,
.ao = NULL,
.do_ = das16_do_wbits,
.i8255_offset = 0,
.i8254_offset = 0x0c,
.size = 0x14,