--- /dev/null
+/**
+@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
+UINT 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)
+{
+ UINT ui_TmpValue;
+
+ ULONG ul_Command1 = 0;
+ ULONG 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 |
+| UINT 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)
+{
+ UINT ui_TmpValue = 0;
+ UINT ui_Channel;
+ ui_Channel = CR_CHAN(insn->chanspec);
+ if (ui_Channel >= 0 && ui_Channel <= 31) {
+ ui_TmpValue = (UINT) 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 |
+| UINT ui_NoOfChannels : No Of Channels To be Read |
+| UINT *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)
+{
+ UINT ui_PortValue = data[0];
+ UINT ui_Mask = 0;
+ UINT ui_NoOfChannels;
+
+ ui_NoOfChannels = CR_CHAN(insn->chanspec);
+ if (data[1] == 0) {
+ *data = (UINT) 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;
+
+ UINT 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;
+}
projects / linux-2.6-omap-h63xx.git / blobdiff