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Commit 3c98c1d3 authored by Ian Abbott's avatar Ian Abbott Committed by Greg Kroah-Hartman
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staging: comedi: das08: rename DAS08AO_AO_LSB() and DAS08AO_AO_MSB() 



The `DAS08AO_AO_LSB(x)` macro returns the offset to the analog output
low byte register for channel x (0 or 1) for "AOL", "AOM", and "AOH"
boards.  The `DAS08AO_AO_MSB(x)` macro returns the offset to the
corresponding high byte register.  Rename the macros to
`DAS08AOX_AO_LSB_REG(x)` and `DAS08AOX_AO_MSB_REG(x)` respectively, and
add some comments.

Signed-off-by: default avatarIan Abbott <abbotti@mev.co.uk>
Reviewed-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f1c04fd4

drivers/staging/comedi/drivers/das08.c

+6 −4
Original line number Diff line number Diff line
@@ -134,8 +134,10 @@ 
  cdef	8255

*/



#define DAS08AO_AO_LSB(x)	((x) ? 0xa : 8)

#define DAS08AO_AO_MSB(x)	((x) ? 0xb : 9)

/* (W) analog output l.s.b. registers for 2 channels ("AOx" boards) */

#define DAS08AOX_AO_LSB_REG(x)	((x) ? 0x0a : 0x08)

/* (W) analog output m.s.b. registers for 2 channels ("AOx" boards) */

#define DAS08AOX_AO_MSB_REG(x)	((x) ? 0x0b : 0x09)

#define DAS08AO_AO_UPDATE	8



/* gainlist same as _pgx_ below */
@@ -369,8 +371,8 @@ static void das08_ao_set_data(struct comedi_device *dev, 
		/* load DACs */

		inb(dev->iobase + DAS08JR_AO_UPDATE_REG);

	} else {

		outb(lsb, dev->iobase + DAS08AO_AO_LSB(chan));

		outb(msb, dev->iobase + DAS08AO_AO_MSB(chan));

		outb(lsb, dev->iobase + DAS08AOX_AO_LSB_REG(chan));

		outb(msb, dev->iobase + DAS08AOX_AO_MSB_REG(chan));

		/* load DACs */

		inb(dev->iobase + DAS08AO_AO_UPDATE);

	}