staging: comedi: ni_65xx: cleanup recurring register map

Convert the inline functions used to calculate the offsets to the
recurring port registers and rename them to remove the CamelCase.

Define all the recurring registers.
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/ni_65xx.c

@@ -96,34 +96,22 @@ except maybe the 6514.
 #define NI_65XX_WDOG_STATUS_EXP		(1 << 0)
 #define NI_65XX_WDOG_INTERVAL_REG	0x18 /* 32-bit */
 
+/* Recurring port registers (8-bit) */
+#define NI_65XX_PORT(x)			((x) * 0x10)
+#define NI_65XX_IO_DATA_REG(x)		(0x40 + NI_65XX_PORT(x))
+#define NI_65XX_IO_SEL_REG(x)		(0x41 + NI_65XX_PORT(x))
+#define NI_65XX_IO_SEL_OUTPUT		(0 << 0)
+#define NI_65XX_IO_SEL_INPUT		(1 << 0)
+#define NI_65XX_RISE_EDGE_ENA_REG(x)	(0x42 + NI_65XX_PORT(x))
+#define NI_65XX_FALL_EDGE_ENA_REG(x)	(0x43 + NI_65XX_PORT(x))
+#define NI_65XX_FILTER_ENA(x)		(0x44 + NI_65XX_PORT(x))
+#define NI_65XX_WDOG_HIZ_REG(x)		(0x46 + NI_65XX_PORT(x))
+#define NI_65XX_WDOG_ENA(x)		(0x47 + NI_65XX_PORT(x))
+#define NI_65XX_WDOG_HI_LO_REG(x)	(0x48 + NI_65XX_PORT(x))
+#define NI_65XX_RTSI_ENA(x)		(0x49 + NI_65XX_PORT(x))
+
 #define NI_65XX_MAX_NUM_PORTS 12
 static const unsigned ni_65xx_channels_per_port = 8;
-static const unsigned ni_65xx_port_offset = 0x10;
-
-static inline unsigned Port_Data(unsigned port)
-{
-	return 0x40 + port * ni_65xx_port_offset;
-}
-
-static inline unsigned Port_Select(unsigned port)
-{
-	return 0x41 + port * ni_65xx_port_offset;
-}
-
-static inline unsigned Rising_Edge_Detection_Enable(unsigned port)
-{
-	return 0x42 + port * ni_65xx_port_offset;
-}
-
-static inline unsigned Falling_Edge_Detection_Enable(unsigned port)
-{
-	return 0x43 + port * ni_65xx_port_offset;
-}
-
-static inline unsigned Filter_Enable(unsigned port)
-{
-	return 0x44 + port * ni_65xx_port_offset;
-}
 
 enum ni_65xx_boardid {
 	BOARD_PCI6509,
@@ -333,7 +321,7 @@ static int ni_65xx_config_filter(struct comedi_device *dev,
 	}
 
 	writeb(devpriv->filter_enable[port],
-	       devpriv->mmio + Filter_Enable(port));
+	       devpriv->mmio + NI_65XX_FILTER_ENA(port));
 
 	return 2;
 }
@@ -357,14 +345,16 @@ static int ni_65xx_dio_insn_config(struct comedi_device *dev,
 		if (s->type != COMEDI_SUBD_DIO)
 			return -EINVAL;
 		devpriv->dio_direction[port] = COMEDI_OUTPUT;
-		writeb(0, devpriv->mmio + Port_Select(port));
+		writeb(NI_65XX_IO_SEL_OUTPUT,
+		       devpriv->mmio + NI_65XX_IO_SEL_REG(port));
 		return 1;
 		break;
 	case INSN_CONFIG_DIO_INPUT:
 		if (s->type != COMEDI_SUBD_DIO)
 			return -EINVAL;
 		devpriv->dio_direction[port] = COMEDI_INPUT;
-		writeb(1, devpriv->mmio + Port_Select(port));
+		writeb(NI_65XX_IO_SEL_INPUT,
+		       devpriv->mmio + NI_65XX_IO_SEL_REG(port));
 		return 1;
 		break;
 	case INSN_CONFIG_DIO_QUERY:
@@ -419,9 +409,10 @@ static int ni_65xx_dio_insn_bits(struct comedi_device *dev,
 			bits = devpriv->output_bits[port];
 			if (board->invert_outputs)
 				bits = ~bits;
-			writeb(bits, devpriv->mmio + Port_Data(port));
+			writeb(bits, devpriv->mmio + NI_65XX_IO_DATA_REG(port));
 		}
-		port_read_bits = readb(devpriv->mmio + Port_Data(port));
+		port_read_bits = readb(devpriv->mmio +
+				       NI_65XX_IO_DATA_REG(port));
 		if (s->type == COMEDI_SUBD_DO && board->invert_outputs) {
 			/* Outputs inverted, so invert value read back from
 			 * DO subdevice.  (Does not apply to boards with DIO
@@ -547,21 +538,15 @@ static int ni_65xx_intr_insn_config(struct comedi_device *dev,
 	if (data[0] != INSN_CONFIG_CHANGE_NOTIFY)
 		return -EINVAL;
 
-	writeb(data[1], devpriv->mmio + Rising_Edge_Detection_Enable(0));
-	writeb(data[1] >> 8,
-	       devpriv->mmio + Rising_Edge_Detection_Enable(0x10));
-	writeb(data[1] >> 16,
-	       devpriv->mmio + Rising_Edge_Detection_Enable(0x20));
-	writeb(data[1] >> 24,
-	       devpriv->mmio + Rising_Edge_Detection_Enable(0x30));
-
-	writeb(data[2], devpriv->mmio + Falling_Edge_Detection_Enable(0));
-	writeb(data[2] >> 8,
-	       devpriv->mmio + Falling_Edge_Detection_Enable(0x10));
-	writeb(data[2] >> 16,
-	       devpriv->mmio + Falling_Edge_Detection_Enable(0x20));
-	writeb(data[2] >> 24,
-	       devpriv->mmio + Falling_Edge_Detection_Enable(0x30));
+	writeb(data[1], devpriv->mmio + NI_65XX_RISE_EDGE_ENA_REG(0));
+	writeb(data[1] >> 8, devpriv->mmio + NI_65XX_RISE_EDGE_ENA_REG(0x10));
+	writeb(data[1] >> 16, devpriv->mmio + NI_65XX_RISE_EDGE_ENA_REG(0x20));
+	writeb(data[1] >> 24, devpriv->mmio + NI_65XX_RISE_EDGE_ENA_REG(0x30));
+
+	writeb(data[2], devpriv->mmio + NI_65XX_FALL_EDGE_ENA_REG(0));
+	writeb(data[2] >> 8, devpriv->mmio + NI_65XX_FALL_EDGE_ENA_REG(0x10));
+	writeb(data[2] >> 16, devpriv->mmio + NI_65XX_FALL_EDGE_ENA_REG(0x20));
+	writeb(data[2] >> 24, devpriv->mmio + NI_65XX_FALL_EDGE_ENA_REG(0x30));
 
 	return 2;
 }
@@ -680,9 +665,10 @@ static int ni_65xx_auto_attach(struct comedi_device *dev,
 		if (!spriv)
 			return -ENOMEM;
 		spriv->base_port = 0;
+		/* configure all ports for input */
 		for (i = 0; i < board->num_dio_ports; ++i) {
-			/*  configure all ports for input */
-			writeb(0x1, devpriv->mmio + Port_Select(i));
+			writeb(NI_65XX_IO_SEL_INPUT,
+			       devpriv->mmio + NI_65XX_IO_SEL_REG(i));
 		}
 	} else {
 		s->type = COMEDI_SUBD_UNUSED;
@@ -703,11 +689,11 @@ static int ni_65xx_auto_attach(struct comedi_device *dev,
 	s->insn_config = ni_65xx_intr_insn_config;
 
 	for (i = 0; i < ni_65xx_total_num_ports(board); ++i) {
-		writeb(0x00, devpriv->mmio + Filter_Enable(i));
+		writeb(0x00, devpriv->mmio + NI_65XX_FILTER_ENA(i));
 		if (board->invert_outputs)
-			writeb(0x01, devpriv->mmio + Port_Data(i));
+			writeb(0x01, devpriv->mmio + NI_65XX_IO_DATA_REG(i));
 		else
-			writeb(0x00, devpriv->mmio + Port_Data(i));
+			writeb(0x00, devpriv->mmio + NI_65XX_IO_DATA_REG(i));
 	}
 	writeb(NI_65XX_CLR_EDGE_INT | NI_65XX_CLR_OVERFLOW_INT,
 	       devpriv->mmio + NI_65XX_CLR_REG);