From: H Hartley Sweeten Date: Mon, 29 Jul 2013 20:54:09 +0000 (-0700) Subject: staging: comedi: das16: all supported board have digital inputs X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fb1864ba9535353530f43ae60386f00bc629a5bb;p=linux-beck.git staging: comedi: das16: all supported board have digital inputs All the boards supported by this driver have digital inputs and all of then use the same function to handle the (*insn_bits) for the subdevice. Remove the 'di' member from the boardinfo and always initialize the digital input subdevice during the board attach. Tidy up the subdevice init a bit as well as the (*insn_bits) function. The (*insn_bits) function does not need to clear data[0]. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c index 11e5787dd27e..3528c8257a5c 100644 --- a/drivers/staging/comedi/drivers/das16.c +++ b/drivers/staging/comedi/drivers/das16.c @@ -343,7 +343,6 @@ struct das16_board { unsigned int ai_pg; void *ao; unsigned int ao_nbits; - void *di; void *do_; unsigned int i8255_offset; @@ -712,14 +711,12 @@ static int das16_ai_insn_read(struct comedi_device *dev, return n; } -static int das16_di_rbits(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) +static int das16_di_insn_bits(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data) { - unsigned int bits; - - bits = inb(dev->iobase + DAS16_DIO) & 0xf; - data[1] = bits; - data[0] = 0; + data[1] = inb(dev->iobase + DAS16_DIO) & 0xf; return insn->n; } @@ -1149,18 +1146,14 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it) s->type = COMEDI_SUBD_UNUSED; } + /* Digital Input subdevice */ s = &dev->subdevices[2]; - /* di */ - if (board->di) { - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE; - s->n_chan = 4; - s->maxdata = 1; - s->range_table = &range_digital; - s->insn_bits = board->di; - } else { - s->type = COMEDI_SUBD_UNUSED; - } + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->n_chan = 4; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = das16_di_insn_bits; s = &dev->subdevices[3]; /* do */ @@ -1234,7 +1227,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_none, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x10, .i8254_offset = 0x0c, @@ -1247,7 +1239,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_none, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x10, .i8254_offset = 0x0c, @@ -1260,7 +1251,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_none, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x10, .i8254_offset = 0x0c, @@ -1273,7 +1263,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_none, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x10, .i8254_offset = 0x0c, @@ -1286,7 +1275,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_none, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x10, .i8254_offset = 0x0c, @@ -1298,7 +1286,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 7692, .ai_pg = das16_pg_16jr, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0, .i8254_offset = 0x0c, @@ -1310,7 +1297,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 3300, .ai_pg = das16_pg_16jr, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0, .i8254_offset = 0x0c, @@ -1322,7 +1308,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 10000, .ai_pg = das16_pg_16jr_16, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0, .i8254_offset = 0x0c, @@ -1334,7 +1319,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 10000, .ai_pg = das16_pg_16jr_16, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0, .i8254_offset = 0x0c, @@ -1346,7 +1330,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 20000, .ai_pg = das16_pg_none, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x400, .i8254_offset = 0x0c, @@ -1358,7 +1341,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 10000, .ai_pg = das16_pg_none, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x400, .i8254_offset = 0x0c, @@ -1370,7 +1352,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 10000, .ai_pg = das16_pg_1601, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x0, .i8254_offset = 0x0c, @@ -1382,7 +1363,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 10000, .ai_pg = das16_pg_1602, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x0, .i8254_offset = 0x0c, @@ -1395,7 +1375,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_1601, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x400, .i8254_offset = 0x0c, @@ -1408,7 +1387,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_1602, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x400, .i8254_offset = 0x0c, @@ -1420,7 +1398,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 6250, .ai_pg = das16_pg_1601, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0, .i8254_offset = 0x0c, @@ -1432,7 +1409,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 6250, .ai_pg = das16_pg_1602, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0, .i8254_offset = 0x0c, @@ -1444,7 +1420,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 10000, .ai_pg = das16_pg_1602, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0, .i8254_offset = 0x0c, @@ -1457,7 +1432,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_1601, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x400, .i8254_offset = 0x0c, @@ -1470,7 +1444,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_1602, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x400, .i8254_offset = 0x0c, @@ -1483,7 +1456,6 @@ static const struct das16_board das16_boards[] = { .ai_pg = das16_pg_1602, .ao = das16_ao_winsn, .ao_nbits = 12, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0x400, .i8254_offset = 0x0c, @@ -1495,7 +1467,6 @@ static const struct das16_board das16_boards[] = { .ai_speed = 3030, .ai_pg = das16_pg_16jr, .ao = NULL, - .di = das16_di_rbits, .do_ = das16_do_wbits, .i8255_offset = 0, .i8254_offset = 0x0c,