[PATCH 17/26] staging: comedi: addi_apci_2032: merge in hwdrv_apci2032.c

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Merge the code from hwdrv_apci2032.c into the driver and delete the
now unused file.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 .../comedi/drivers/addi-data/hwdrv_apci2032.c      | 364 ---------------------
 drivers/staging/comedi/drivers/addi_apci_2032.c    | 216 +++++++++++-
 2 files changed, 215 insertions(+), 365 deletions(-)
 delete mode 100644 drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c

diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c
deleted file mode 100644
index 90aeaf9..0000000
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci2032.c
+++ /dev/null
@@ -1,364 +0,0 @@
-/**
-@verbatim
-
-Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
-
-	ADDI-DATA GmbH
-	Dieselstrasse 3
-	D-77833 Ottersweier
-	Tel: +19(0)7223/9493-0
-	Fax: +49(0)7223/9493-92
-	http://www.addi-data.com
-	info@xxxxxxxxxxxxx
-
-This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-You should also find the complete GPL in the COPYING file accompanying this source code.
-
-@endverbatim
-*/
-/*
-
-  +-----------------------------------------------------------------------+
-  | (C) ADDI-DATA GmbH          Dieselstraße 3       D-77833 Ottersweier  |
-  +-----------------------------------------------------------------------+
-  | Tel : +49 (0) 7223/9493-0     | email    : info@xxxxxxxxxxxxx         |
-  | Fax : +49 (0) 7223/9493-92    | Internet : http://www.addi-data.com   |
-  +-------------------------------+---------------------------------------+
-  | Project     : APCI-2032       | Compiler   : GCC                      |
-  | Module name : hwdrv_apci2032.c| Version    : 2.96                     |
-  +-------------------------------+---------------------------------------+
-  | Project manager: Eric Stolz   | Date       :  02/12/2002              |
-  +-------------------------------+---------------------------------------+
-  | Description :   Hardware Layer Access For APCI-2032                   |
-  +-----------------------------------------------------------------------+
-  |                             UPDATES                                   |
-  +----------+-----------+------------------------------------------------+
-  |   Date   |   Author  |          Description of updates                |
-  +----------+-----------+------------------------------------------------+
-  |          |           |                                                |
-  |          |           |                                                |
-  |          |           |                                                |
-  +----------+-----------+------------------------------------------------+
-*/
-
-/*********      Definitions for APCI-2032 card  *****/
-
-/* Card Specific information */
-#define APCI2032_ADDRESS_RANGE				63
-
-/* DIGITAL INPUT-OUTPUT DEFINE */
-
-#define APCI2032_DIGITAL_OP				0
-#define APCI2032_DIGITAL_OP_RW				0
-#define APCI2032_DIGITAL_OP_INTERRUPT			4
-#define APCI2032_DIGITAL_OP_IRQ				12
-
-/* Digital Output Interrupt Status */
-#define APCI2032_DIGITAL_OP_INTERRUPT_STATUS		8
-
-/* Digital Output Interrupt Enable Disable. */
-#define APCI2032_DIGITAL_OP_VCC_INTERRUPT_ENABLE	0x1
-#define APCI2032_DIGITAL_OP_VCC_INTERRUPT_DISABLE	0xfffffffe
-#define APCI2032_DIGITAL_OP_CC_INTERRUPT_ENABLE		0x2
-#define APCI2032_DIGITAL_OP_CC_INTERRUPT_DISABLE	0xfffffffd
-
-/* TIMER COUNTER WATCHDOG DEFINES */
-
-#define ADDIDATA_WATCHDOG				2
-#define APCI2032_DIGITAL_OP_WATCHDOG			16
-#define APCI2032_TCW_RELOAD_VALUE			4
-#define APCI2032_TCW_TIMEBASE				8
-#define APCI2032_TCW_PROG				12
-#define APCI2032_TCW_TRIG_STATUS			16
-#define APCI2032_TCW_IRQ				20
-
-static unsigned int ui_InterruptData, ui_Type;
-
-/*
-+----------------------------------------------------------------------------+
-| Function   Name   : int i_APCI2032_ConfigDigitalOutput                     |
-|			  (struct comedi_device *dev,struct comedi_subdevice *s,               |
-|                      struct comedi_insn *insn,unsigned int *data)                     |
-+----------------------------------------------------------------------------+
-| Task              : Configures The Digital Output Subdevice.               |
-+----------------------------------------------------------------------------+
-| Input Parameters  : struct comedi_device *dev : Driver handle                     |
-|                     unsigned int *data         : Data Pointer contains             |
-|                                          configuration parameters as below |
-|                                                                            |
-|					  data[1]            : 1 Enable  VCC  Interrupt  |
-|										   0 Disable VCC  Interrupt  |
-|					  data[2]            : 1 Enable  CC  Interrupt   |
-|										   0 Disable CC  Interrupt   |
-|																	 |
-+----------------------------------------------------------------------------+
-| Output Parameters :	--													 |
-+----------------------------------------------------------------------------+
-| Return Value      : TRUE  : No error occur                                 |
-|		            : FALSE : Error occur. Return the error          |
-|			                                                         |
-+----------------------------------------------------------------------------+
-*/
-static int i_APCI2032_ConfigDigitalOutput(struct comedi_device *dev,
-					  struct comedi_subdevice *s,
-					  struct comedi_insn *insn,
-					  unsigned int *data)
-{
-	struct addi_private *devpriv = dev->private;
-	unsigned int ul_Command = 0;
-
-	devpriv->tsk_Current = current;
-
-	if ((data[0] != 0) && (data[0] != 1)) {
-		comedi_error(dev,
-			"Not a valid Data !!! ,Data should be 1 or 0\n");
-		return -EINVAL;
-	}			/* if  ( (data[0]!=0) && (data[0]!=1) ) */
-	if (data[0]) {
-		devpriv->b_OutputMemoryStatus = ADDIDATA_ENABLE;
-	}			/*  if  (data[0]) */
-	else {
-		devpriv->b_OutputMemoryStatus = ADDIDATA_DISABLE;
-	}			/* else if  (data[0]) */
-
-	if (data[1] == ADDIDATA_ENABLE) {
-		ul_Command = ul_Command | 0x1;
-	}			/* if  (data[1] == ADDIDATA_ENABLE) */
-	else {
-		ul_Command = ul_Command & 0xFFFFFFFE;
-	}			/* elseif  (data[1] == ADDIDATA_ENABLE) */
-	if (data[2] == ADDIDATA_ENABLE) {
-		ul_Command = ul_Command | 0x2;
-	}			/* if  (data[2] == ADDIDATA_ENABLE) */
-	else {
-		ul_Command = ul_Command & 0xFFFFFFFD;
-	}			/* elseif  (data[2] == ADDIDATA_ENABLE) */
-	outl(ul_Command, dev->iobase + APCI2032_DIGITAL_OP_INTERRUPT);
-	ui_InterruptData = inl(dev->iobase + APCI2032_DIGITAL_OP_INTERRUPT);
-	return insn->n;
-}
-
-static int apci2032_do_insn_bits(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn,
-				 unsigned int *data)
-{
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	s->state = inl(dev->iobase + APCI2032_DIGITAL_OP_RW);
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
-		outl(s->state, dev->iobase + APCI2032_DIGITAL_OP);
-	}
-
-	data[1] = s->state;
-
-	return insn->n;
-}
-
-/*
-+----------------------------------------------------------------------------+
-| Function   Name   : int i_APCI2032_ConfigWatchdog(comedi_device
-|                   *dev,struct comedi_subdevice *s,struct comedi_insn *insn,unsigned int *data)|
-|				                                                     |
-+----------------------------------------------------------------------------+
-| Task              : Configures The Watchdog                                |
-+----------------------------------------------------------------------------+
-| Input Parameters  : struct comedi_device *dev      : Driver handle                |
-|                     struct comedi_subdevice *s,   :pointer to subdevice structure
-|                      struct comedi_insn *insn      :pointer to insn structure      |
-|                     unsigned int *data          : Data Pointer to read status                                                                                                             |
-+----------------------------------------------------------------------------+
-| Output Parameters :	--													 |
-+----------------------------------------------------------------------------+
-| Return Value      : TRUE  : No error occur                                 |
-|		            : FALSE : Error occur. Return the error          |
-|			                                                         |
-+----------------------------------------------------------------------------+
-*/
-static int i_APCI2032_ConfigWatchdog(struct comedi_device *dev,
-				     struct comedi_subdevice *s,
-				     struct comedi_insn *insn,
-				     unsigned int *data)
-{
-	if (data[0] == 0) {
-		/* Disable the watchdog */
-		outl(0x0,
-			dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
-			APCI2032_TCW_PROG);
-		/* Loading the Reload value */
-		outl(data[1],
-			dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
-			APCI2032_TCW_RELOAD_VALUE);
-	} else {
-		printk("\nThe input parameters are wrong\n");
-		return -EINVAL;
-	}
-
-	return insn->n;
-}
-
- /*
-    +----------------------------------------------------------------------------+
-    | Function   Name   : int i_APCI2032_StartStopWriteWatchdog                  |
-    |                           (struct comedi_device *dev,struct comedi_subdevice *s,
-    struct comedi_insn *insn,unsigned int *data);                      |
-    +----------------------------------------------------------------------------+
-    | Task              : Start / Stop The Watchdog                              |
-    +----------------------------------------------------------------------------+
-    | Input Parameters  : struct comedi_device *dev      : Driver handle                |
-    |                     struct comedi_subdevice *s,   :pointer to subdevice structure
-    struct comedi_insn *insn      :pointer to insn structure      |
-    |                     unsigned int *data          : Data Pointer to read status  |
-    +----------------------------------------------------------------------------+
-    | Output Parameters :       --                                                                                                       |
-    +----------------------------------------------------------------------------+
-    | Return Value      : TRUE  : No error occur                                 |
-    |                       : FALSE : Error occur. Return the error          |
-    |                                                                            |
-    +----------------------------------------------------------------------------+
-  */
-
-static int i_APCI2032_StartStopWriteWatchdog(struct comedi_device *dev,
-					     struct comedi_subdevice *s,
-					     struct comedi_insn *insn,
-					     unsigned int *data)
-{
-	switch (data[0]) {
-	case 0:		/* stop the watchdog */
-		outl(0x0, dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG + APCI2032_TCW_PROG);	/* disable the watchdog */
-		break;
-	case 1:		/* start the watchdog */
-		outl(0x0001,
-			dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
-			APCI2032_TCW_PROG);
-		break;
-	case 2:		/* Software trigger */
-		outl(0x0201,
-			dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
-			APCI2032_TCW_PROG);
-		break;
-	default:
-		printk("\nSpecified functionality does not exist\n");
-		return -EINVAL;
-	}
-	return insn->n;
-}
-
-/*
-+----------------------------------------------------------------------------+
-| Function   Name   : int i_APCI2032_ReadWatchdog                            |
-|			(struct comedi_device *dev,struct comedi_subdevice *s,struct comedi_insn *insn,
-|                    unsigned int *data); 	                                     |
-+----------------------------------------------------------------------------+
-| Task              : Read The Watchdog                                      |
-+----------------------------------------------------------------------------+
-| Input Parameters  :   struct comedi_device *dev      : Driver handle              |
-|                     struct comedi_subdevice *s,   :pointer to subdevice structure
-|                      struct comedi_insn *insn      :pointer to insn structure      |
-|                     unsigned int *data          : Data Pointer to read status  |
-+----------------------------------------------------------------------------+
-| Output Parameters :	--													 |
-+----------------------------------------------------------------------------+
-| Return Value      : TRUE  : No error occur                                 |
-|		            : FALSE : Error occur. Return the error          |
-|			                                                         |
-+----------------------------------------------------------------------------+
-*/
-
-static int i_APCI2032_ReadWatchdog(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn,
-				   unsigned int *data)
-{
-	data[0] =
-		inl(dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
-		APCI2032_TCW_TRIG_STATUS) & 0x1;
-	return insn->n;
-}
-
-/*
-+----------------------------------------------------------------------------+
-| Function   Name   :  void v_APCI2032_Interrupt					         |
-|					  (int irq , void *d)      |
-+----------------------------------------------------------------------------+
-| Task              : Writes port value  To the selected port                |
-+----------------------------------------------------------------------------+
-| Input Parameters  : int irq                 : irq number                   |
-|                     void *d                 : void pointer                 |
-+----------------------------------------------------------------------------+
-| Output Parameters :	--													 |
-+----------------------------------------------------------------------------+
-| Return Value      : TRUE  : No error occur                                 |
-|		            : FALSE : Error occur. Return the error          |
-|			                                                         |
-+----------------------------------------------------------------------------+
-*/
-static void v_APCI2032_Interrupt(int irq, void *d)
-{
-	struct comedi_device *dev = d;
-	struct addi_private *devpriv = dev->private;
-	unsigned int ui_DO;
-
-	ui_DO = inl(dev->iobase + APCI2032_DIGITAL_OP_IRQ) & 0x1;	/* Check if VCC OR CC interrupt has occurred. */
-
-	if (ui_DO == 0) {
-		printk("\nInterrupt from unKnown source\n");
-	}			/*  if(ui_DO==0) */
-	if (ui_DO) {
-		/*  Check for Digital Output interrupt Type - 1: Vcc interrupt 2: CC interrupt. */
-		ui_Type =
-			inl(dev->iobase +
-			APCI2032_DIGITAL_OP_INTERRUPT_STATUS) & 0x3;
-		outl(0x0,
-			dev->iobase + APCI2032_DIGITAL_OP +
-			APCI2032_DIGITAL_OP_INTERRUPT);
-		if (ui_Type == 1) {
-			/* Sends signal to user space */
-			send_sig(SIGIO, devpriv->tsk_Current, 0);
-		}		/*  if (ui_Type==1) */
-		else {
-			if (ui_Type == 2) {
-				/*  Sends signal to user space */
-				send_sig(SIGIO, devpriv->tsk_Current, 0);
-			}	/* if (ui_Type==2) */
-		}		/* else if (ui_Type==1) */
-	}			/* if(ui_DO) */
-
-	return;
-
-}
-
-/*
-+----------------------------------------------------------------------------+
-| Function   Name   :  int i_APCI2032_ReadInterruptStatus                    |
-|			  (struct comedi_device *dev,struct comedi_subdevice *s,               |
-|                      struct comedi_insn *insn,unsigned int *data)                     |
-+----------------------------------------------------------------------------+
-| Task              :Reads the interrupt status register                     |
-+----------------------------------------------------------------------------+
-| Input Parameters  :                                                        |
-+----------------------------------------------------------------------------+
-| Output Parameters :	--													 |
-+----------------------------------------------------------------------------+
-| Return Value      :                                                        |
-|			                                                         |
-+----------------------------------------------------------------------------+
-*/
-
-static int i_APCI2032_ReadInterruptStatus(struct comedi_device *dev,
-					  struct comedi_subdevice *s,
-					  struct comedi_insn *insn,
-					  unsigned int *data)
-{
-	*data = ui_Type;
-	return insn->n;
-}
diff --git a/drivers/staging/comedi/drivers/addi_apci_2032.c b/drivers/staging/comedi/drivers/addi_apci_2032.c
index 26f6e00..8c87a55 100644
--- a/drivers/staging/comedi/drivers/addi_apci_2032.c
+++ b/drivers/staging/comedi/drivers/addi_apci_2032.c
@@ -1,9 +1,223 @@
+/*
+ * addi_apci_2032.c
+ * Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code of this module.
+ * Project manager: Eric Stolz
+ *
+ *	ADDI-DATA GmbH
+ *	Dieselstrasse 3
+ *	D-77833 Ottersweier
+ *	Tel: +19(0)7223/9493-0
+ *	Fax: +49(0)7223/9493-92
+ *	http://www.addi-data.com
+ *	info@xxxxxxxxxxxxx
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * You should also find the complete GPL in the COPYING file accompanying
+ * this source code.
+ */
+
 #include "../comedidev.h"
 #include "comedi_fc.h"
 
 #include "addi-data/addi_common.h"
 
-#include "addi-data/hwdrv_apci2032.c"
+/*
+ * PCI bar 1 I/O Register map
+ */
+#define APCI2032_DIGITAL_OP				0
+#define APCI2032_DIGITAL_OP_RW				0
+#define APCI2032_DIGITAL_OP_INTERRUPT			4
+#define APCI2032_DIGITAL_OP_INTERRUPT_STATUS		8
+#define APCI2032_DIGITAL_OP_IRQ				12
+
+#define APCI2032_DIGITAL_OP_VCC_INTERRUPT_ENABLE	0x1
+#define APCI2032_DIGITAL_OP_VCC_INTERRUPT_DISABLE	0xfffffffe
+#define APCI2032_DIGITAL_OP_CC_INTERRUPT_ENABLE		0x2
+#define APCI2032_DIGITAL_OP_CC_INTERRUPT_DISABLE	0xfffffffd
+
+#define APCI2032_DIGITAL_OP_WATCHDOG			16
+#define APCI2032_TCW_RELOAD_VALUE			4
+#define APCI2032_TCW_TIMEBASE				8
+#define APCI2032_TCW_PROG				12
+#define APCI2032_TCW_TRIG_STATUS			16
+#define APCI2032_TCW_IRQ				20
+
+static unsigned int ui_InterruptData, ui_Type;
+
+static int i_APCI2032_ConfigDigitalOutput(struct comedi_device *dev,
+					  struct comedi_subdevice *s,
+					  struct comedi_insn *insn,
+					  unsigned int *data)
+{
+	struct addi_private *devpriv = dev->private;
+	unsigned int ul_Command = 0;
+
+	devpriv->tsk_Current = current;
+
+	if ((data[0] != 0) && (data[0] != 1)) {
+		comedi_error(dev,
+			"Not a valid Data !!! ,Data should be 1 or 0\n");
+		return -EINVAL;
+	}			/* if  ( (data[0]!=0) && (data[0]!=1) ) */
+	if (data[0]) {
+		devpriv->b_OutputMemoryStatus = ADDIDATA_ENABLE;
+	}			/*  if  (data[0]) */
+	else {
+		devpriv->b_OutputMemoryStatus = ADDIDATA_DISABLE;
+	}			/* else if  (data[0]) */
+
+	if (data[1] == ADDIDATA_ENABLE) {
+		ul_Command = ul_Command | 0x1;
+	}			/* if  (data[1] == ADDIDATA_ENABLE) */
+	else {
+		ul_Command = ul_Command & 0xFFFFFFFE;
+	}			/* elseif  (data[1] == ADDIDATA_ENABLE) */
+	if (data[2] == ADDIDATA_ENABLE) {
+		ul_Command = ul_Command | 0x2;
+	}			/* if  (data[2] == ADDIDATA_ENABLE) */
+	else {
+		ul_Command = ul_Command & 0xFFFFFFFD;
+	}			/* elseif  (data[2] == ADDIDATA_ENABLE) */
+	outl(ul_Command, dev->iobase + APCI2032_DIGITAL_OP_INTERRUPT);
+	ui_InterruptData = inl(dev->iobase + APCI2032_DIGITAL_OP_INTERRUPT);
+	return insn->n;
+}
+
+static int apci2032_do_insn_bits(struct comedi_device *dev,
+				 struct comedi_subdevice *s,
+				 struct comedi_insn *insn,
+				 unsigned int *data)
+{
+	unsigned int mask = data[0];
+	unsigned int bits = data[1];
+
+	s->state = inl(dev->iobase + APCI2032_DIGITAL_OP_RW);
+	if (mask) {
+		s->state &= ~mask;
+		s->state |= (bits & mask);
+
+		outl(s->state, dev->iobase + APCI2032_DIGITAL_OP);
+	}
+
+	data[1] = s->state;
+
+	return insn->n;
+}
+
+static int i_APCI2032_ConfigWatchdog(struct comedi_device *dev,
+				     struct comedi_subdevice *s,
+				     struct comedi_insn *insn,
+				     unsigned int *data)
+{
+	if (data[0] == 0) {
+		/* Disable the watchdog */
+		outl(0x0,
+			dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
+			APCI2032_TCW_PROG);
+		/* Loading the Reload value */
+		outl(data[1],
+			dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
+			APCI2032_TCW_RELOAD_VALUE);
+	} else {
+		printk("\nThe input parameters are wrong\n");
+		return -EINVAL;
+	}
+
+	return insn->n;
+}
+
+static int i_APCI2032_StartStopWriteWatchdog(struct comedi_device *dev,
+					     struct comedi_subdevice *s,
+					     struct comedi_insn *insn,
+					     unsigned int *data)
+{
+	switch (data[0]) {
+	case 0:		/* stop the watchdog */
+		outl(0x0, dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG + APCI2032_TCW_PROG);	/* disable the watchdog */
+		break;
+	case 1:		/* start the watchdog */
+		outl(0x0001,
+			dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
+			APCI2032_TCW_PROG);
+		break;
+	case 2:		/* Software trigger */
+		outl(0x0201,
+			dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
+			APCI2032_TCW_PROG);
+		break;
+	default:
+		printk("\nSpecified functionality does not exist\n");
+		return -EINVAL;
+	}
+	return insn->n;
+}
+
+static int i_APCI2032_ReadWatchdog(struct comedi_device *dev,
+				   struct comedi_subdevice *s,
+				   struct comedi_insn *insn,
+				   unsigned int *data)
+{
+	data[0] =
+		inl(dev->iobase + APCI2032_DIGITAL_OP_WATCHDOG +
+		APCI2032_TCW_TRIG_STATUS) & 0x1;
+	return insn->n;
+}
+
+static int i_APCI2032_ReadInterruptStatus(struct comedi_device *dev,
+					  struct comedi_subdevice *s,
+					  struct comedi_insn *insn,
+					  unsigned int *data)
+{
+	*data = ui_Type;
+	return insn->n;
+}
+static void v_APCI2032_Interrupt(int irq, void *d)
+{
+	struct comedi_device *dev = d;
+	struct addi_private *devpriv = dev->private;
+	unsigned int ui_DO;
+
+	ui_DO = inl(dev->iobase + APCI2032_DIGITAL_OP_IRQ) & 0x1;	/* Check if VCC OR CC interrupt has occurred. */
+
+	if (ui_DO == 0) {
+		printk("\nInterrupt from unKnown source\n");
+	}			/*  if(ui_DO==0) */
+	if (ui_DO) {
+		/*  Check for Digital Output interrupt Type - 1: Vcc interrupt 2: CC interrupt. */
+		ui_Type =
+			inl(dev->iobase +
+			APCI2032_DIGITAL_OP_INTERRUPT_STATUS) & 0x3;
+		outl(0x0,
+			dev->iobase + APCI2032_DIGITAL_OP +
+			APCI2032_DIGITAL_OP_INTERRUPT);
+		if (ui_Type == 1) {
+			/* Sends signal to user space */
+			send_sig(SIGIO, devpriv->tsk_Current, 0);
+		}		/*  if (ui_Type==1) */
+		else {
+			if (ui_Type == 2) {
+				/*  Sends signal to user space */
+				send_sig(SIGIO, devpriv->tsk_Current, 0);
+			}	/* if (ui_Type==2) */
+		}		/* else if (ui_Type==1) */
+	}			/* if(ui_DO) */
+
+	return;
+
+}
 
 static irqreturn_t v_ADDI_Interrupt(int irq, void *d)
 {
-- 
1.7.11

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