diff options
| author | Ian Abbott <abbotti@mev.co.uk> | 2015-06-05 20:30:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-06-13 03:06:40 +0300 |
| commit | c47c0ed2d53ad829aff1f4ada00e98227c478a57 (patch) | |
| tree | 4dacd0a22c9ace5f003e54ce72ee6e71ff011c57 /drivers/staging | |
| parent | 11e8457f02ee41bbd1c0437d340c692ce2d78431 (diff) | |
| download | linux-c47c0ed2d53ad829aff1f4ada00e98227c478a57.tar.xz | |
staging: comedi: das08: rename and split DAS08JR_DIO
The `DAS08JR_DIO` macro contains the offset to the read-only digital
input register and write-only digital output register on the "JR"
boards. Replace the macro with two new macros (with the same numeric
value) named `DAS08JR_DI_REG` for the digital input register and
`DAS08JR_DO_REG` for the digital output register, and add some comments.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/comedi/drivers/das08.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c index 76e35d4aae93..c015bb6507f3 100644 --- a/drivers/staging/comedi/drivers/das08.c +++ b/drivers/staging/comedi/drivers/das08.c @@ -95,7 +95,8 @@ */ -#define DAS08JR_DIO 3 +#define DAS08JR_DI_REG 0x03 /* (R) digital inputs ("JR" boards) */ +#define DAS08JR_DO_REG 0x03 /* (W) digital outputs ("JR" boards) */ #define DAS08JR_AO_LSB(x) ((x) ? 6 : 4) #define DAS08JR_AO_MSB(x) ((x) ? 7 : 5) @@ -324,7 +325,7 @@ static int das08jr_di_rbits(struct comedi_device *dev, struct comedi_insn *insn, unsigned int *data) { data[0] = 0; - data[1] = inb(dev->iobase + DAS08JR_DIO); + data[1] = inb(dev->iobase + DAS08JR_DI_REG); return insn->n; } @@ -335,7 +336,7 @@ static int das08jr_do_wbits(struct comedi_device *dev, unsigned int *data) { if (comedi_dio_update_state(s, data)) - outb(s->state, dev->iobase + DAS08JR_DIO); + outb(s->state, dev->iobase + DAS08JR_DO_REG); data[1] = s->state; @@ -355,7 +356,7 @@ static void das08_ao_set_data(struct comedi_device *dev, outb(lsb, dev->iobase + DAS08JR_AO_LSB(chan)); outb(msb, dev->iobase + DAS08JR_AO_MSB(chan)); /* load DACs */ - inb(dev->iobase + DAS08JR_DIO); + inb(dev->iobase + DAS08JR_DI_REG); } else { outb(lsb, dev->iobase + DAS08AO_AO_LSB(chan)); outb(msb, dev->iobase + DAS08AO_AO_MSB(chan)); |