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Commit 1b501671 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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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: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: default avatarIan Abbott <abbotti@mev.co.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d69917a6

drivers/staging/comedi/drivers/amplc_pc263.c

+6 −7
Original line number Diff line number Diff line
@@ -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;

}