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@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@addi-data.com
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 shoud 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@addi-data.com |
| Fax : +49 (0) 7223/9493-92 | Internet : http://www.addi-data.com |
+-------------------------------+---------------------------------------+
| Project : APCI-1032 | Compiler : GCC |
| Module name : hwdrv_apci1032.c| Version : 2.96 |
+-------------------------------+---------------------------------------+
| Project manager: Eric Stolz | Date : 02/12/2002 |
+-------------------------------+---------------------------------------+
| Description : Hardware Layer Acces For APCI-1032 |
+-----------------------------------------------------------------------+
| UPDATES |
+----------+-----------+------------------------------------------------+
| Date | Author | Description of updates |
+----------+-----------+------------------------------------------------+
| | | |
| | | |
| | | |
+----------+-----------+------------------------------------------------+
*/
/*
+----------------------------------------------------------------------------+
| Included files |
+----------------------------------------------------------------------------+
*/
#include "hwdrv_apci1032.h"
#include <linux/delay.h>
/* Global variables */
unsigned int ui_InterruptStatus = 0;
/*
+----------------------------------------------------------------------------+
| Function Name : int i_APCI1032_ConfigDigitalInput |
| (struct comedi_device *dev,struct comedi_subdevice *s, |
| struct comedi_insn *insn,unsigned int *data) |
+----------------------------------------------------------------------------+
| Task : Configures the digital input Subdevice |
+----------------------------------------------------------------------------+
| Input Parameters : struct comedi_device *dev : Driver handle |
| unsigned int *data : Data Pointer contains |
| configuration parameters as below |
| |
| data[0] : 1 Enable Digital Input Interrupt |
| 0 Disable Digital Input Interrupt |
| data[1] : 0 ADDIDATA Interrupt OR LOGIC |
| : 1 ADDIDATA Interrupt AND LOGIC |
| data[2] : Interrupt mask for the mode 1 |
| data[3] : Interrupt mask for the mode 2 |
| |
+----------------------------------------------------------------------------+
| Output Parameters : -- |
+----------------------------------------------------------------------------+
| Return Value : TRUE : No error occur |
| : FALSE : Error occur. Return the error |
| |
+----------------------------------------------------------------------------+
*/
int i_APCI1032_ConfigDigitalInput(struct comedi_device *dev, struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
unsigned int ui_TmpValue;
unsigned int ul_Command1 = 0;
unsigned int ul_Command2 = 0;
devpriv->tsk_Current = current;
/*******************************/
/* Set the digital input logic */
/*******************************/
if (data[0] == ADDIDATA_ENABLE) {
ul_Command1 = ul_Command1 | data[2];
ul_Command2 = ul_Command2 | data[3];
outl(ul_Command1,
devpriv->iobase + APCI1032_DIGITAL_IP_INTERRUPT_MODE1);
outl(ul_Command2,
devpriv->iobase + APCI1032_DIGITAL_IP_INTERRUPT_MODE2);
if (data[1] == ADDIDATA_OR) {
outl(0x4, devpriv->iobase + APCI1032_DIGITAL_IP_IRQ);
ui_TmpValue =
inl(devpriv->iobase + APCI1032_DIGITAL_IP_IRQ);
} /* if (data[1] == ADDIDATA_OR) */
else {
outl(0x6, devpriv->iobase + APCI1032_DIGITAL_IP_IRQ);
} /* else if(data[1] == ADDIDATA_OR) */
} /* if( data[0] == ADDIDATA_ENABLE) */
else {
ul_Command1 = ul_Command1 & 0xFFFF0000;
ul_Command2 = ul_Command2 & 0xFFFF0000;
outl(ul_Command1,
devpriv->iobase + APCI1032_DIGITAL_IP_INTERRUPT_MODE1);
outl(ul_Command2,
devpriv->iobase + APCI1032_DIGITAL_IP_INTERRUPT_MODE2);
outl(0x0, devpriv->iobase + APCI1032_DIGITAL_IP_IRQ);
} /* else if ( data[0] == ADDIDATA_ENABLE) */
return insn->n;
}
/*
+----------------------------------------------------------------------------+
| Function Name : int i_APCI1032_Read1DigitalInput |
| (struct comedi_device *dev,struct comedi_subdevice *s, |
| struct comedi_insn *insn,unsigned int *data) |
+----------------------------------------------------------------------------+
| Task : Return the status of the digital input |
+----------------------------------------------------------------------------+
| Input Parameters : struct comedi_device *dev : Driver handle |
| unsigned int ui_Channel : Channel number to read |
| unsigned int *data : Data Pointer to read status |
+----------------------------------------------------------------------------+
| Output Parameters : -- |
+----------------------------------------------------------------------------+
| Return Value : TRUE : No error occur |
| : FALSE : Error occur. Return the error |
| |
+----------------------------------------------------------------------------+
*/
int i_APCI1032_Read1DigitalInput(struct comedi_device *dev, struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
unsigned int ui_TmpValue = 0;
unsigned int ui_Channel;
ui_Channel = CR_CHAN(insn->chanspec);
if (ui_Channel <= 31) {
ui_TmpValue = (unsigned int) inl(devpriv->iobase + APCI1032_DIGITAL_IP);
/*
* since only 1 channel reqd to bring it to last bit it is rotated 8
* +(chan - 1) times then ANDed with 1 for last bit.
*/
*data = (ui_TmpValue >> ui_Channel) & 0x1;
} /* if(ui_Channel >= 0 && ui_Channel <=31) */
else {
/* comedi_error(dev," \n chan spec wrong\n"); */
return -EINVAL; /* "sorry channel spec wrong " */
} /* else if(ui_Channel >= 0 && ui_Channel <=31) */
return insn->n;
}
/*
+----------------------------------------------------------------------------+
| Function Name : int i_APCI1032_ReadMoreDigitalInput |
| (struct comedi_device *dev,struct comedi_subdevice *s, |
| struct comedi_insn *insn,unsigned int *data) |
+----------------------------------------------------------------------------+
| Task : Return the status of the Requested digital inputs |
+----------------------------------------------------------------------------+
| Input Parameters : struct comedi_device *dev : Driver handle |
| unsigned int ui_NoOfChannels : No Of Channels To be Read |
| unsigned int *data : Data Pointer to read status |
+----------------------------------------------------------------------------+
| Output Parameters : -- |
+----------------------------------------------------------------------------+
| Return Value : TRUE : No error occur |
| : FALSE : Error occur. Return the error |
| |
+----------------------------------------------------------------------------+
*/
int i_APCI1032_ReadMoreDigitalInput(struct comedi_device *dev, struct comedi_subdevice *s,
struct comedi_insn *insn, unsigned int *data)
{
unsigned int ui_PortValue = data[0];
unsigned int ui_Mask = 0;
unsigned int ui_NoOfChannels;
ui_NoOfChannels = CR_CHAN(insn->chanspec);
if (data[1] == 0) {
*data = (unsigned int) inl(devpriv->iobase + APCI1032_DIGITAL_IP);
switch (ui_NoOfChannels) {
case 2:
ui_Mask = 3;
*data = (*data >> (2 * ui_PortValue)) & ui_Mask;
break;
case 4:
ui_Mask = 15;
*data = (*data >> (4 * ui_PortValue)) & ui_Mask;
break;
case 8:
ui_Mask = 255;
*data = (*data >> (8 * ui_PortValue)) & ui_Mask;
break;
case 16:
ui_Mask = 65535;
*data = (*data >> (16 * ui_PortValue)) & ui_Mask;
break;
case 31:
break;
default:
/* comedi_error(dev," \nchan spec wrong\n"); */
return -EINVAL; /* "sorry channel spec wrong " */
break;
} /* switch(ui_NoOfChannels) */
} /* if(data[1]==0) */
else {
if (data[1] == 1) {
*data = ui_InterruptStatus;
} /* if(data[1]==1) */
} /* else if(data[1]==0) */
return insn->n;
}
/*
+----------------------------------------------------------------------------+
| Function Name : static void v_APCI1032_Interrupt |
| (int irq , void *d) |
+----------------------------------------------------------------------------+
| Task : Interrupt handler for the interruptible digital inputs |
+----------------------------------------------------------------------------+
| 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_APCI1032_Interrupt(int irq, void *d)
{
struct comedi_device *dev = d;
unsigned int ui_Temp;
/* disable the interrupt */
ui_Temp = inl(devpriv->iobase + APCI1032_DIGITAL_IP_IRQ);
outl(ui_Temp & APCI1032_DIGITAL_IP_INTERRUPT_DISABLE,
devpriv->iobase + APCI1032_DIGITAL_IP_IRQ);
ui_InterruptStatus =
inl(devpriv->iobase + APCI1032_DIGITAL_IP_INTERRUPT_STATUS);
ui_InterruptStatus = ui_InterruptStatus & 0X0000FFFF;
send_sig(SIGIO, devpriv->tsk_Current, 0); /* send signal to the sample */
outl(ui_Temp, devpriv->iobase + APCI1032_DIGITAL_IP_IRQ); /* enable the interrupt */
return;
}
/*
+----------------------------------------------------------------------------+
| Function Name : int i_APCI1032_Reset(struct comedi_device *dev) | |
+----------------------------------------------------------------------------+
| Task :resets all the registers |
+----------------------------------------------------------------------------+
| Input Parameters : struct comedi_device *dev
+----------------------------------------------------------------------------+
| Output Parameters : -- |
+----------------------------------------------------------------------------+
| Return Value : |
| |
+----------------------------------------------------------------------------+
*/
int i_APCI1032_Reset(struct comedi_device *dev)
{
outl(0x0, devpriv->iobase + APCI1032_DIGITAL_IP_IRQ); /* disable the interrupts */
inl(devpriv->iobase + APCI1032_DIGITAL_IP_INTERRUPT_STATUS); /* Reset the interrupt status register */
outl(0x0, devpriv->iobase + APCI1032_DIGITAL_IP_INTERRUPT_MODE1); /* Disable the and/or interrupt */
outl(0x0, devpriv->iobase + APCI1032_DIGITAL_IP_INTERRUPT_MODE2);
return 0;
}
|