| /** |
| @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 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@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 Access For APCI-1032 | |
| +-----------------------------------------------------------------------+ |
| | UPDATES | |
| +----------+-----------+------------------------------------------------+ |
| | Date | Author | Description of updates | |
| +----------+-----------+------------------------------------------------+ |
| | | | | |
| | | | | |
| | | | | |
| +----------+-----------+------------------------------------------------+ |
| */ |
| |
| /* |
| +----------------------------------------------------------------------------+ |
| | Included files | |
| +----------------------------------------------------------------------------+ |
| */ |
| #include "hwdrv_apci1032.h" |
| #include <linux/delay.h> |
| |
| static unsigned int ui_InterruptStatus; |
| |
| /* |
| +----------------------------------------------------------------------------+ |
| | 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; |
| } |
