staging: comedi: plx9052: tidy up the register defines

The PLX INTCSR register defines are a bit wordy and many of them
are not used anywhere.

For aesthetic reasons, remove all the *_MASK and *_DISABLED defines
and rename the remaining bit defines so they are not as wordy.

Convert all the bit defines to bit shifts.

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/amplc_pc236.c

@@ -75,23 +75,19 @@ unused.
 #define PC236_IO_SIZE		4
 #define PC236_LCR_IO_SIZE	128
 
-/*
- * INTCSR values for PCI236.
- */
-/* Disable interrupt, also clear any interrupt there */
-#define PCI236_INTR_DISABLE (PLX9052_INTCSR_LI1ENAB_DISABLED \
-	| PLX9052_INTCSR_LI1POL_HIGH \
-	| PLX9052_INTCSR_LI2POL_HIGH \
-	| PLX9052_INTCSR_PCIENAB_DISABLED \
-	| PLX9052_INTCSR_LI1SEL_EDGE \
-	| PLX9052_INTCSR_LI1CLRINT_ASSERTED)
-/* Enable interrupt, also clear any interrupt there. */
-#define PCI236_INTR_ENABLE (PLX9052_INTCSR_LI1ENAB_ENABLED \
-	| PLX9052_INTCSR_LI1POL_HIGH \
-	| PLX9052_INTCSR_LI2POL_HIGH \
-	| PLX9052_INTCSR_PCIENAB_ENABLED \
-	| PLX9052_INTCSR_LI1SEL_EDGE \
-	| PLX9052_INTCSR_LI1CLRINT_ASSERTED)
+/* Disable, and clear, interrupts */
+#define PCI236_INTR_DISABLE	(PLX9052_INTCSR_LI1POL |	\
+				 PLX9052_INTCSR_LI2POL |	\
+				 PLX9052_INTCSR_LI1SEL |	\
+				 PLX9052_INTCSR_LI1CLRINT)
+
+/* Enable, and clear, interrupts */
+#define PCI236_INTR_ENABLE	(PLX9052_INTCSR_LI1ENAB |	\
+				 PLX9052_INTCSR_LI1POL |	\
+				 PLX9052_INTCSR_LI2POL |	\
+				 PLX9052_INTCSR_PCIENAB |	\
+				 PLX9052_INTCSR_LI1SEL |	\
+				 PLX9052_INTCSR_LI1CLRINT)
 
 /*
  * Board descriptions for Amplicon PC36AT and PCI236.
@@ -257,14 +253,14 @@ static int pc236_intr_check(struct comedi_device *dev)
 	struct pc236_private *devpriv = dev->private;
 	int retval = 0;
 	unsigned long flags;
+	unsigned int intcsr;
 
 	spin_lock_irqsave(&dev->spinlock, flags);
 	if (devpriv->enable_irq) {
 		retval = 1;
 		if (is_pci_board(thisboard)) {
-			if ((inl(devpriv->lcr_iobase + PLX9052_INTCSR)
-			     & PLX9052_INTCSR_LI1STAT_MASK)
-			    == PLX9052_INTCSR_LI1STAT_INACTIVE) {
+			intcsr = inl(devpriv->lcr_iobase + PLX9052_INTCSR);
+			if (!(intcsr & PLX9052_INTCSR_LI1STAT)) {
 				retval = 0;
 			} else {
 				/* Clear interrupt and keep it enabled. */

drivers/staging/comedi/drivers/cb_pcimdas.c

@@ -46,6 +46,7 @@ See http://www.mccdaq.com/PDFs/Manuals/pcim-das1602-16.pdf for more details.
 
 #include "../comedidev.h"
 
+#include "plx9052.h"
 #include "8255.h"
 
 /* #define CBPCIMDAS_DEBUG */

drivers/staging/comedi/drivers/plx9052.h

@@ -27,60 +27,21 @@
 #define _PLX9052_H_
 
 /*
- * PLX PCI9052 INTCSR register.
+ * INTCSR - Interrupt Control/Status register
  */
-#define PLX9052_INTCSR	0x4C	/* Offset in Local Configuration Registers */
-/* Local Interrupt 1 Enable */
-#define PLX9052_INTCSR_LI1ENAB_MASK		0x0001
-#define PLX9052_INTCSR_LI1ENAB_DISABLED		0x0000
-#define PLX9052_INTCSR_LI1ENAB_ENABLED		0x0001
-/* Local Interrupt 1 Polarity */
-#define PLX9052_INTCSR_LI1POL_MASK		0x0002
-#define PLX9052_INTCSR_LI1POL_LOW		0x0000
-#define PLX9052_INTCSR_LI1POL_HIGH		0x0002
-/* Local Interrupt 1 Status (read-only) */
-#define PLX9052_INTCSR_LI1STAT_MASK		0x0004
-#define PLX9052_INTCSR_LI1STAT_INACTIVE		0x0000
-#define PLX9052_INTCSR_LI1STAT_ACTIVE		0x0004
-/* Local Interrupt 2 Enable */
-#define PLX9052_INTCSR_LI2ENAB_MASK		0x0008
-#define PLX9052_INTCSR_LI2ENAB_DISABLED		0x0000
-#define PLX9052_INTCSR_LI2ENAB_ENABLED		0x0008
-/* Local Interrupt 2 Polarity */
-#define PLX9052_INTCSR_LI2POL_MASK		0x0010
-#define PLX9052_INTCSR_LI2POL_LOW		0x0000
-#define PLX9052_INTCSR_LI2POL_HIGH		0x0010
-/* Local Interrupt 2 Status (read-only) */
-#define PLX9052_INTCSR_LI2STAT_MASK		0x0020
-#define PLX9052_INTCSR_LI2STAT_INACTIVE		0x0000
-#define PLX9052_INTCSR_LI2STAT_ACTIVE		0x0020
-/* PCI Interrupt Enable */
-#define PLX9052_INTCSR_PCIENAB_MASK		0x0040
-#define PLX9052_INTCSR_PCIENAB_DISABLED		0x0000
-#define PLX9052_INTCSR_PCIENAB_ENABLED		0x0040
-/* Software Interrupt */
-#define PLX9052_INTCSR_SOFTINT_MASK		0x0080
-#define PLX9052_INTCSR_SOFTINT_UNASSERTED	0x0000
-#define PLX9052_INTCSR_SOFTINT_ASSERTED		0x0080
-/* Local Interrupt 1 Select Enable */
-#define PLX9052_INTCSR_LI1SEL_MASK		0x0100
-#define PLX9052_INTCSR_LI1SEL_LEVEL		0x0000
-#define PLX9052_INTCSR_LI1SEL_EDGE		0x0100
-/* Local Interrupt 2 Select Enable */
-#define PLX9052_INTCSR_LI2SEL_MASK		0x0200
-#define PLX9052_INTCSR_LI2SEL_LEVEL		0x0000
-#define PLX9052_INTCSR_LI2SEL_EDGE		0x0200
-/* Local Edge Triggerable Interrupt 1 Clear Bit */
-#define PLX9052_INTCSR_LI1CLRINT_MASK		0x0400
-#define PLX9052_INTCSR_LI1CLRINT_UNASSERTED	0x0000
-#define PLX9052_INTCSR_LI1CLRINT_ASSERTED	0x0400
-/* Local Edge Triggerable Interrupt 2 Clear Bit */
-#define PLX9052_INTCSR_LI2CLRINT_MASK		0x0800
-#define PLX9052_INTCSR_LI2CLRINT_UNASSERTED	0x0000
-#define PLX9052_INTCSR_LI2CLRINT_ASSERTED	0x0800
-/* ISA Interface Mode Enable (read-only over PCI bus) */
-#define PLX9052_INTCSR_ISAMODE_MASK		0x1000
-#define PLX9052_INTCSR_ISAMODE_DISABLED		0x0000
-#define PLX9052_INTCSR_ISAMODE_ENABLED		0x1000
+#define PLX9052_INTCSR			0x4c
+#define PLX9052_INTCSR_LI1ENAB		(1 << 0)  /* LI1 enabled */
+#define PLX9052_INTCSR_LI1POL		(1 << 1)  /* LI1 active high */
+#define PLX9052_INTCSR_LI1STAT		(1 << 2)  /* LI1 active */
+#define PLX9052_INTCSR_LI2ENAB		(1 << 3)  /* LI2 enabled */
+#define PLX9052_INTCSR_LI2POL		(1 << 4)  /* LI2 active high */
+#define PLX9052_INTCSR_LI2STAT		(1 << 5)  /* LI2 active */
+#define PLX9052_INTCSR_PCIENAB		(1 << 6)  /* PCIINT enabled */
+#define PLX9052_INTCSR_SOFTINT		(1 << 7)  /* generate soft int */
+#define PLX9052_INTCSR_LI1SEL		(1 << 8)  /* LI1 edge */
+#define PLX9052_INTCSR_LI2SEL		(1 << 9)  /* LI2 edge */
+#define PLX9052_INTCSR_LI1CLRINT	(1 << 10) /* LI1 clear int */
+#define PLX9052_INTCSR_LI2CLRINT	(1 << 11) /* LI2 clear int */
+#define PLX9052_INTCSR_ISAMODE		(1 << 12) /* ISA interface mode */
 
 #endif /* _PLX9052_H_ */