staging: comedi: quatech_daqp_cs: tidy up status register bits

For aesthetics, move the bit defines for this register and use the
BIT macro to define the bits.
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>

drivers/staging/comedi/drivers/quatech_daqp_cs.c

@@ -78,6 +78,19 @@
 #define DAQP_CTRL_TRIG_EDGE		BIT(0)	/* 0=rising; 1=falling */
 
 #define DAQP_STATUS_REG			0x02
+#define DAQP_STATUS_IDLE		BIT(7)
+#define DAQP_STATUS_RUNNING		BIT(6)
+#define DAQP_STATUS_DATA_LOST		BIT(5)
+#define DAQP_STATUS_END_OF_SCAN		BIT(4)
+#define DAQP_STATUS_FIFO_THRESHOLD	BIT(3)
+#define DAQP_STATUS_FIFO_FULL		BIT(2)
+#define DAQP_STATUS_FIFO_NEARFULL	BIT(1)
+#define DAQP_STATUS_FIFO_EMPTY		BIT(0)
+/* these bits clear when the status register is read */
+#define DAQP_STATUS_EVENTS		(DAQP_STATUS_DATA_LOST |	\
+					 DAQP_STATUS_END_OF_SCAN |	\
+					 DAQP_STATUS_FIFO_THRESHOLD)
+
 #define DAQP_DI_REG			0x03
 #define DAQP_DO_REG			0x03
 #define DAQP_PACER_LOW_REG		0x04
@@ -88,16 +101,6 @@
 #define DAQP_TIMER_REG			0x0a
 #define DAQP_AUX_REG			0x0f
 
-#define DAQP_STATUS_IDLE		0x80
-#define DAQP_STATUS_RUNNING		0x40
-#define DAQP_STATUS_EVENTS		0x38
-#define DAQP_STATUS_DATA_LOST		0x20
-#define DAQP_STATUS_END_OF_SCAN		0x10
-#define DAQP_STATUS_FIFO_THRESHOLD	0x08
-#define DAQP_STATUS_FIFO_FULL		0x04
-#define DAQP_STATUS_FIFO_NEARFULL	0x02
-#define DAQP_STATUS_FIFO_EMPTY		0x01
-
 #define DAQP_COMMAND_ARM		0x80
 #define DAQP_COMMAND_RSTF		0x40
 #define DAQP_COMMAND_RSTQ		0x20