Commit 2c7aab27 authored by Ian Abbott's avatar Ian Abbott Committed by Greg Kroah-Hartman
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staging: comedi: daqboard2000: rename reference DACs register macros 



Rename the macros that define values for the reference DACs register to
avoid CamelCase, and to make it clearer which register they are
associated with.  Add a macro `DB2K_REG_DACS_SET` for the value `0x0080`
that triggers setting one of the references.

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 77b9634c

drivers/staging/comedi/drivers/daqboard2000.c

+5 −4
Original line number Diff line number Diff line
@@ -244,8 +244,9 @@ static const struct comedi_lrange range_daqboard2000_ai = { 
#define DB2K_TRIG_CONTROL_DISABLE			0x0000



/* Reference Dac Selection */

#define DAQBOARD2000_PosRefDacSelect             0x0100

#define DAQBOARD2000_NegRefDacSelect             0x0000

#define DB2K_REF_DACS_SET				0x0080

#define DB2K_REF_DACS_SELECT_POS_REF			0x0100

#define DB2K_REF_DACS_SELECT_NEG_REF			0x0000



struct daq200_boardtype {

	const char *name;
@@ -569,7 +570,7 @@ static void daqboard2000_activateReferenceDacs(struct comedi_device *dev) 
	int timeout;



	/*  Set the + reference dac value in the FPGA */

	writew(0x80 | DAQBOARD2000_PosRefDacSelect,

	writew(DB2K_REF_DACS_SET | DB2K_REF_DACS_SELECT_POS_REF,

	       dev->mmio + DB2K_REG_REF_DACS);

	for (timeout = 0; timeout < 20; timeout++) {

		val = readw(dev->mmio + DB2K_REG_DAC_STATUS);
@@ -579,7 +580,7 @@ static void daqboard2000_activateReferenceDacs(struct comedi_device *dev) 
	}



	/*  Set the - reference dac value in the FPGA */

	writew(0x80 | DAQBOARD2000_NegRefDacSelect,

	writew(DB2K_REF_DACS_SET | DB2K_REF_DACS_SELECT_NEG_REF,

	       dev->mmio + DB2K_REG_REF_DACS);

	for (timeout = 0; timeout < 20; timeout++) {

		val = readw(dev->mmio + DB2K_REG_DAC_STATUS);

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