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staging: comedi: amplc_pc263: define the register map 

For completeness, define the registers used by this driver and remove
the magic numbers.

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 2016-03-30 11:36:58 -07:00 committed by Greg Kroah-Hartman
parent d69917a64a
commit 1b50167146
1 changed files with 6 additions and 7 deletions
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13
drivers/staging/comedi/drivers/amplc_pc263.c
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@ -37,10 +37,8 @@ The state of the outputs can be read.
#include "../comedidev.h"
/* PC263 registers */
/*
* Board descriptions for Amplicon PC263.
*/
#define PC263_DO_0_7_REG 0x00
#define PC263_DO_8_15_REG 0x01
struct pc263_board {
const char *name;
@ -58,8 +56,8 @@ static int pc263_do_insn_bits(struct comedi_device *dev,
unsigned int *data)
{
if (comedi_dio_update_state(s, data)) {
outb(s->state & 0xff, dev->iobase);
outb((s->state >> 8) & 0xff, dev->iobase + 1);
outb(s->state & 0xff, dev->iobase + PC263_DO_0_7_REG);
outb((s->state >> 8) & 0xff, dev->iobase + PC263_DO_8_15_REG);
}
data[1] = s->state;
@ -90,7 +88,8 @@ static int pc263_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->insn_bits = pc263_do_insn_bits;
/* read initial relay state */
s->state = inb(dev->iobase) | (inb(dev->iobase + 1) << 8);
s->state = inb(dev->iobase + PC263_DO_0_7_REG) |
(inb(dev->iobase + PC263_DO_8_15_REG) << 8);
return 0;
}