| /** |
| @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 : API APCI1710 | Compiler : gcc | |
| | Module name : SSI.C | Version : 2.96 | |
| +-------------------------------+---------------------------------------+ |
| | Project manager: Eric Stolz | Date : 02/12/2002 | |
| +-----------------------------------------------------------------------+ |
| | Description : APCI-1710 SSI counter module | |
| | | |
| | | |
| +-----------------------------------------------------------------------+ |
| | UPDATES | |
| +-----------------------------------------------------------------------+ |
| | Date | Author | Description of updates | |
| +----------+-----------+------------------------------------------------+ |
| | 13/05/98 | S. Weber | SSI digital input / output implementation | |
| |----------|-----------|------------------------------------------------| |
| | 22/03/00 | C.Guinot | 0100/0226 -> 0200/0227 | |
| | | | Änderung in InitSSI Funktion | |
| | | | b_SSIProfile >= 2 anstatt b_SSIProfile > 2 | |
| | | | | |
| +-----------------------------------------------------------------------+ |
| | 08/05/00 | Guinot C | - 0400/0228 All Function in RING 0 | |
| | | | available | |
| +-----------------------------------------------------------------------+ |
| */ |
| |
| /* |
| +----------------------------------------------------------------------------+ |
| | Included files | |
| +----------------------------------------------------------------------------+ |
| */ |
| |
| #include "APCI1710_Ssi.h" |
| |
| /* |
| +----------------------------------------------------------------------------+ |
| | Function Name : _INT_ i_APCI1710_InitSSI | |
| | (unsigned char_ b_BoardHandle, | |
| | unsigned char_ b_ModulNbr, | |
| | unsigned char_ b_SSIProfile, | |
| | unsigned char_ b_PositionTurnLength, | |
| | unsigned char_ b_TurnCptLength, | |
| | unsigned char_ b_PCIInputClock, | |
| | ULONG_ ul_SSIOutputClock, | |
| | unsigned char_ b_SSICountingMode) | |
| +----------------------------------------------------------------------------+ |
| | Task : Configure the SSI operating mode from selected module | |
| | (b_ModulNbr). You must calling this function be for you| |
| | call any other function witch access of SSI. | |
| +----------------------------------------------------------------------------+ |
| | Input Parameters : unsigned char_ b_BoardHandle : Handle of board APCI-1710| |
| | unsigned char_ b_ModulNbr : Module number to | |
| | configure (0 to 3) | |
| | unsigned char_ b_SSIProfile : Selection from SSI | |
| | profile length (2 to 32).| |
| | unsigned char_ b_PositionTurnLength : Selection from SSI | |
| | position data length | |
| | (1 to 31). | |
| | unsigned char_ b_TurnCptLength : Selection from SSI turn | |
| | counter data length | |
| | (1 to 31). | |
| | unsigned char b_PCIInputClock : Selection from PCI bus | |
| | clock | |
| | - APCI1710_30MHZ : | |
| | The PC have a PCI bus | |
| | clock from 30 MHz | |
| | - APCI1710_33MHZ : | |
| | The PC have a PCI bus | |
| | clock from 33 MHz | |
| | ULONG_ ul_SSIOutputClock : Selection from SSI output| |
| | clock. | |
| | From 229 to 5 000 000 Hz| |
| | for 30 MHz selection. | |
| | From 252 to 5 000 000 Hz| |
| | for 33 MHz selection. | |
| | unsigned char b_SSICountingMode : SSI counting mode | |
| | selection | |
| | - APCI1710_BINARY_MODE : | |
| | Binary counting mode. | |
| | - APCI1710_GRAY_MODE : | |
| | Gray counting mode. |
| |
| b_ModulNbr = CR_AREF(insn->chanspec); |
| b_SSIProfile = (unsigned char) data[0]; |
| b_PositionTurnLength= (unsigned char) data[1]; |
| b_TurnCptLength = (unsigned char) data[2]; |
| b_PCIInputClock = (unsigned char) data[3]; |
| ul_SSIOutputClock = (unsigned int) data[4]; |
| b_SSICountingMode = (unsigned char) data[5]; | |
| +----------------------------------------------------------------------------+ |
| | Output Parameters : - | |
| +----------------------------------------------------------------------------+ |
| | Return Value : 0: No error | |
| | -1: The handle parameter of the board is wrong | |
| | -2: The module parameter is wrong | |
| | -3: The module is not a SSI module | |
| | -4: The selected SSI profile length is wrong | |
| | -5: The selected SSI position data length is wrong | |
| | -6: The selected SSI turn counter data length is wrong | |
| | -7: The selected PCI input clock is wrong | |
| | -8: The selected SSI output clock is wrong | |
| | -9: The selected SSI counting mode parameter is wrong | |
| +----------------------------------------------------------------------------+ |
| */ |
| |
| int i_APCI1710_InsnConfigInitSSI(struct comedi_device *dev, struct comedi_subdevice *s, |
| struct comedi_insn *insn, unsigned int *data) |
| { |
| int i_ReturnValue = 0; |
| unsigned int ui_TimerValue; |
| unsigned char b_ModulNbr, b_SSIProfile, b_PositionTurnLength, b_TurnCptLength, |
| b_PCIInputClock, b_SSICountingMode; |
| unsigned int ul_SSIOutputClock; |
| |
| b_ModulNbr = CR_AREF(insn->chanspec); |
| b_SSIProfile = (unsigned char) data[0]; |
| b_PositionTurnLength = (unsigned char) data[1]; |
| b_TurnCptLength = (unsigned char) data[2]; |
| b_PCIInputClock = (unsigned char) data[3]; |
| ul_SSIOutputClock = (unsigned int) data[4]; |
| b_SSICountingMode = (unsigned char) data[5]; |
| |
| i_ReturnValue = insn->n; |
| /**************************/ |
| /* Test the module number */ |
| /**************************/ |
| |
| if (b_ModulNbr < 4) { |
| /***********************/ |
| /* Test if SSI counter */ |
| /***********************/ |
| |
| if ((devpriv->s_BoardInfos. |
| dw_MolduleConfiguration[b_ModulNbr] & |
| 0xFFFF0000UL) == APCI1710_SSI_COUNTER) { |
| /*******************************/ |
| /* Test the SSI profile length */ |
| /*******************************/ |
| |
| /* CG 22/03/00 b_SSIProfile >= 2 anstatt b_SSIProfile > 2 */ |
| if (b_SSIProfile >= 2 && b_SSIProfile < 33) { |
| /*************************************/ |
| /* Test the SSI position data length */ |
| /*************************************/ |
| |
| if (b_PositionTurnLength > 0 |
| && b_PositionTurnLength < 32) { |
| /*****************************************/ |
| /* Test the SSI turn counter data length */ |
| /*****************************************/ |
| |
| if (b_TurnCptLength > 0 |
| && b_TurnCptLength < 32) { |
| /***************************/ |
| /* Test the profile length */ |
| /***************************/ |
| |
| if ((b_TurnCptLength + |
| b_PositionTurnLength) |
| <= b_SSIProfile) { |
| /****************************/ |
| /* Test the PCI input clock */ |
| /****************************/ |
| |
| if (b_PCIInputClock == |
| APCI1710_30MHZ |
| || |
| b_PCIInputClock |
| == |
| APCI1710_33MHZ) |
| { |
| /*************************/ |
| /* Test the output clock */ |
| /*************************/ |
| |
| if ((b_PCIInputClock == APCI1710_30MHZ && (ul_SSIOutputClock > 228 && ul_SSIOutputClock <= 5000000UL)) || (b_PCIInputClock == APCI1710_33MHZ && (ul_SSIOutputClock > 251 && ul_SSIOutputClock <= 5000000UL))) { |
| if (b_SSICountingMode == APCI1710_BINARY_MODE || b_SSICountingMode == APCI1710_GRAY_MODE) { |
| /**********************/ |
| /* Save configuration */ |
| /**********************/ |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_SSIProfile |
| = |
| b_SSIProfile; |
| |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_PositionTurnLength |
| = |
| b_PositionTurnLength; |
| |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_TurnCptLength |
| = |
| b_TurnCptLength; |
| |
| /*********************************/ |
| /* Initialise the profile length */ |
| /*********************************/ |
| |
| if (b_SSICountingMode == APCI1710_BINARY_MODE) { |
| |
| outl(b_SSIProfile + 1, devpriv->s_BoardInfos.ui_Address + 4 + (64 * b_ModulNbr)); |
| } else { |
| |
| outl(b_SSIProfile, devpriv->s_BoardInfos.ui_Address + 4 + (64 * b_ModulNbr)); |
| } |
| |
| /******************************/ |
| /* Calculate the output clock */ |
| /******************************/ |
| |
| ui_TimerValue |
| = |
| (unsigned int) |
| ( |
| ((unsigned int) (b_PCIInputClock) * 500000UL) / ul_SSIOutputClock); |
| |
| /************************/ |
| /* Initialise the timer */ |
| /************************/ |
| |
| outl(ui_TimerValue, devpriv->s_BoardInfos.ui_Address + (64 * b_ModulNbr)); |
| |
| /********************************/ |
| /* Initialise the counting mode */ |
| /********************************/ |
| |
| outl(7 * b_SSICountingMode, devpriv->s_BoardInfos.ui_Address + 12 + (64 * b_ModulNbr)); |
| |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_SSIInit |
| = |
| 1; |
| } else { |
| /*****************************************************/ |
| /* The selected SSI counting mode parameter is wrong */ |
| /*****************************************************/ |
| |
| DPRINTK("The selected SSI counting mode parameter is wrong\n"); |
| i_ReturnValue |
| = |
| -9; |
| } |
| } else { |
| /******************************************/ |
| /* The selected SSI output clock is wrong */ |
| /******************************************/ |
| |
| DPRINTK("The selected SSI output clock is wrong\n"); |
| i_ReturnValue |
| = |
| -8; |
| } |
| } else { |
| /*****************************************/ |
| /* The selected PCI input clock is wrong */ |
| /*****************************************/ |
| |
| DPRINTK("The selected PCI input clock is wrong\n"); |
| i_ReturnValue = |
| -7; |
| } |
| } else { |
| /********************************************/ |
| /* The selected SSI profile length is wrong */ |
| /********************************************/ |
| |
| DPRINTK("The selected SSI profile length is wrong\n"); |
| i_ReturnValue = -4; |
| } |
| } else { |
| /******************************************************/ |
| /* The selected SSI turn counter data length is wrong */ |
| /******************************************************/ |
| |
| DPRINTK("The selected SSI turn counter data length is wrong\n"); |
| i_ReturnValue = -6; |
| } |
| } else { |
| /**************************************************/ |
| /* The selected SSI position data length is wrong */ |
| /**************************************************/ |
| |
| DPRINTK("The selected SSI position data length is wrong\n"); |
| i_ReturnValue = -5; |
| } |
| } else { |
| /********************************************/ |
| /* The selected SSI profile length is wrong */ |
| /********************************************/ |
| |
| DPRINTK("The selected SSI profile length is wrong\n"); |
| i_ReturnValue = -4; |
| } |
| } else { |
| /**********************************/ |
| /* The module is not a SSI module */ |
| /**********************************/ |
| |
| DPRINTK("The module is not a SSI module\n"); |
| i_ReturnValue = -3; |
| } |
| } else { |
| /***********************/ |
| /* Module number error */ |
| /***********************/ |
| |
| DPRINTK("Module number error\n"); |
| i_ReturnValue = -2; |
| } |
| |
| return i_ReturnValue; |
| } |
| |
| /* |
| +----------------------------------------------------------------------------+ |
| | Function Name : _INT_ i_APCI1710_Read1SSIValue | |
| | (unsigned char_ b_BoardHandle, | |
| | unsigned char_ b_ModulNbr, | |
| | unsigned char_ b_SelectedSSI, | |
| | PULONG_ pul_Position, | |
| | PULONG_ pul_TurnCpt) |
| int i_APCI1710_ReadSSIValue(struct comedi_device *dev,struct comedi_subdevice *s, |
| struct comedi_insn *insn,unsigned int *data) | |
| +----------------------------------------------------------------------------+ |
| | Task : |
| |
| |
| Read the selected SSI counter (b_SelectedSSI) from | |
| | selected module (b_ModulNbr). |
| or Read all SSI counter (b_SelectedSSI) from | |
| | selected module (b_ModulNbr). | |
| +----------------------------------------------------------------------------+ |
| | Input Parameters : unsigned char_ b_BoardHandle : Handle of board APCI-1710| |
| | unsigned char_ b_ModulNbr : Module number to | |
| | configure (0 to 3) | |
| | unsigned char_ b_SelectedSSI : Selection from SSI | |
| | counter (0 to 2) |
| |
| b_ModulNbr = (unsigned char) CR_AREF(insn->chanspec); |
| b_SelectedSSI = (unsigned char) CR_CHAN(insn->chanspec); (in case of single ssi) |
| b_ReadType = (unsigned char) CR_RANGE(insn->chanspec); |
| | |
| +----------------------------------------------------------------------------+ |
| | Output Parameters : PULONG_ pul_Position : SSI position in the turn | |
| | PULONG_ pul_TurnCpt : Number of turns |
| |
| pul_Position = (unsigned int *) &data[0]; |
| pul_TurnCpt = (unsigned int *) &data[1]; | |
| +----------------------------------------------------------------------------+ |
| | Return Value : 0: No error | |
| | -1: The handle parameter of the board is wrong | |
| | -2: The module parameter is wrong | |
| | -3: The module is not a SSI module | |
| | -4: SSI not initialised see function | |
| | "i_APCI1710_InitSSI" | |
| | -5: The selected SSI is wrong | |
| +----------------------------------------------------------------------------+ |
| */ |
| |
| int i_APCI1710_InsnReadSSIValue(struct comedi_device *dev, struct comedi_subdevice *s, |
| struct comedi_insn *insn, unsigned int *data) |
| { |
| int i_ReturnValue = 0; |
| unsigned char b_Cpt; |
| unsigned char b_Length; |
| unsigned char b_Schift; |
| unsigned char b_SSICpt; |
| unsigned int dw_And; |
| unsigned int dw_And1; |
| unsigned int dw_And2; |
| unsigned int dw_StatusReg; |
| unsigned int dw_CounterValue; |
| unsigned char b_ModulNbr; |
| unsigned char b_SelectedSSI; |
| unsigned char b_ReadType; |
| unsigned int *pul_Position; |
| unsigned int *pul_TurnCpt; |
| unsigned int *pul_Position1; |
| unsigned int *pul_TurnCpt1; |
| |
| i_ReturnValue = insn->n; |
| pul_Position1 = (unsigned int *) &data[0]; |
| /* For Read1 */ |
| pul_TurnCpt1 = (unsigned int *) &data[1]; |
| /* For Read all */ |
| pul_Position = (unsigned int *) &data[0]; /* 0-2 */ |
| pul_TurnCpt = (unsigned int *) &data[3]; /* 3-5 */ |
| b_ModulNbr = (unsigned char) CR_AREF(insn->chanspec); |
| b_SelectedSSI = (unsigned char) CR_CHAN(insn->chanspec); |
| b_ReadType = (unsigned char) CR_RANGE(insn->chanspec); |
| |
| /**************************/ |
| /* Test the module number */ |
| /**************************/ |
| |
| if (b_ModulNbr < 4) { |
| /***********************/ |
| /* Test if SSI counter */ |
| /***********************/ |
| |
| if ((devpriv->s_BoardInfos. |
| dw_MolduleConfiguration[b_ModulNbr] & |
| 0xFFFF0000UL) == APCI1710_SSI_COUNTER) { |
| /***************************/ |
| /* Test if SSI initialised */ |
| /***************************/ |
| |
| if (devpriv->s_ModuleInfo[b_ModulNbr]. |
| s_SSICounterInfo.b_SSIInit == 1) { |
| |
| switch (b_ReadType) { |
| |
| case APCI1710_SSI_READ1VALUE: |
| /****************************************/ |
| /* Test the selected SSI counter number */ |
| /****************************************/ |
| |
| if (b_SelectedSSI < 3) { |
| /************************/ |
| /* Start the conversion */ |
| /************************/ |
| |
| outl(0, devpriv->s_BoardInfos. |
| ui_Address + 8 + |
| (64 * b_ModulNbr)); |
| |
| do { |
| /*******************/ |
| /* Read the status */ |
| /*******************/ |
| |
| dw_StatusReg = |
| inl(devpriv-> |
| s_BoardInfos. |
| ui_Address + |
| (64 * b_ModulNbr)); |
| } while ((dw_StatusReg & 0x1) |
| != 0); |
| |
| /******************************/ |
| /* Read the SSI counter value */ |
| /******************************/ |
| |
| dw_CounterValue = |
| inl(devpriv-> |
| s_BoardInfos. |
| ui_Address + 4 + |
| (b_SelectedSSI * 4) + |
| (64 * b_ModulNbr)); |
| |
| b_Length = |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_SSIProfile / 2; |
| |
| if ((b_Length * 2) != |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_SSIProfile) { |
| b_Length++; |
| } |
| |
| b_Schift = |
| b_Length - |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_PositionTurnLength; |
| |
| *pul_Position1 = |
| dw_CounterValue >> |
| b_Schift; |
| |
| dw_And = 1; |
| |
| for (b_Cpt = 0; |
| b_Cpt < |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_PositionTurnLength; |
| b_Cpt++) { |
| dw_And = dw_And * 2; |
| } |
| |
| *pul_Position1 = |
| *pul_Position1 & |
| ((dw_And) - 1); |
| |
| *pul_TurnCpt1 = |
| dw_CounterValue >> |
| b_Length; |
| |
| dw_And = 1; |
| |
| for (b_Cpt = 0; |
| b_Cpt < |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_TurnCptLength; |
| b_Cpt++) { |
| dw_And = dw_And * 2; |
| } |
| |
| *pul_TurnCpt1 = |
| *pul_TurnCpt1 & |
| ((dw_And) - 1); |
| } else { |
| /*****************************/ |
| /* The selected SSI is wrong */ |
| /*****************************/ |
| |
| DPRINTK("The selected SSI is wrong\n"); |
| i_ReturnValue = -5; |
| } |
| break; |
| |
| case APCI1710_SSI_READALLVALUE: |
| dw_And1 = 1; |
| |
| for (b_Cpt = 0; |
| b_Cpt < |
| devpriv-> |
| s_ModuleInfo[b_ModulNbr]. |
| s_SSICounterInfo. |
| b_PositionTurnLength; b_Cpt++) { |
| dw_And1 = dw_And1 * 2; |
| } |
| |
| dw_And2 = 1; |
| |
| for (b_Cpt = 0; |
| b_Cpt < |
| devpriv-> |
| s_ModuleInfo[b_ModulNbr]. |
| s_SSICounterInfo. |
| b_TurnCptLength; b_Cpt++) { |
| dw_And2 = dw_And2 * 2; |
| } |
| |
| /************************/ |
| /* Start the conversion */ |
| /************************/ |
| |
| outl(0, devpriv->s_BoardInfos. |
| ui_Address + 8 + |
| (64 * b_ModulNbr)); |
| |
| do { |
| /*******************/ |
| /* Read the status */ |
| /*******************/ |
| |
| dw_StatusReg = |
| inl(devpriv-> |
| s_BoardInfos. |
| ui_Address + |
| (64 * b_ModulNbr)); |
| } while ((dw_StatusReg & 0x1) != 0); |
| |
| for (b_SSICpt = 0; b_SSICpt < 3; |
| b_SSICpt++) { |
| /******************************/ |
| /* Read the SSI counter value */ |
| /******************************/ |
| |
| dw_CounterValue = |
| inl(devpriv-> |
| s_BoardInfos. |
| ui_Address + 4 + |
| (b_SSICpt * 4) + |
| (64 * b_ModulNbr)); |
| |
| b_Length = |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_SSIProfile / 2; |
| |
| if ((b_Length * 2) != |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_SSIProfile) { |
| b_Length++; |
| } |
| |
| b_Schift = |
| b_Length - |
| devpriv-> |
| s_ModuleInfo |
| [b_ModulNbr]. |
| s_SSICounterInfo. |
| b_PositionTurnLength; |
| |
| pul_Position[b_SSICpt] = |
| dw_CounterValue >> |
| b_Schift; |
| pul_Position[b_SSICpt] = |
| pul_Position[b_SSICpt] & |
| ((dw_And1) - 1); |
| |
| pul_TurnCpt[b_SSICpt] = |
| dw_CounterValue >> |
| b_Length; |
| pul_TurnCpt[b_SSICpt] = |
| pul_TurnCpt[b_SSICpt] & |
| ((dw_And2) - 1); |
| } |
| break; |
| |
| default: |
| printk("Read Type Inputs Wrong\n"); |
| |
| } /* switch ending */ |
| |
| } else { |
| /***********************/ |
| /* SSI not initialised */ |
| /***********************/ |
| |
| DPRINTK("SSI not initialised\n"); |
| i_ReturnValue = -4; |
| } |
| } else { |
| /**********************************/ |
| /* The module is not a SSI module */ |
| /**********************************/ |
| |
| DPRINTK("The module is not a SSI module\n"); |
| i_ReturnValue = -3; |
| |
| } |
| } else { |
| /***********************/ |
| /* Module number error */ |
| /***********************/ |
| |
| DPRINTK("Module number error\n"); |
| i_ReturnValue = -2; |
| } |
| |
| return i_ReturnValue; |
| } |
| |
| /* |
| +----------------------------------------------------------------------------+ |
| | Function Name : _INT_ i_APCI1710_ReadSSI1DigitalInput | |
| | (unsigned char_ b_BoardHandle, | |
| | unsigned char_ b_ModulNbr, | |
| | unsigned char_ b_InputChannel, | |
| | unsigned char *_ pb_ChannelStatus) | |
| +----------------------------------------------------------------------------+ |
| | Task : |
| (0) Set the digital output from selected SSI moule | |
| | (b_ModuleNbr) ON |
| (1) Set the digital output from selected SSI moule | |
| | (b_ModuleNbr) OFF |
| (2)Read the status from selected SSI digital input | |
| | (b_InputChannel) |
| (3)Read the status from all SSI digital inputs from | |
| | selected SSI module (b_ModulNbr) | |
| +----------------------------------------------------------------------------+ |
| | Input Parameters : unsigned char_ b_BoardHandle : Handle of board APCI-1710| |
| | unsigned char_ b_ModulNbr CR_AREF : Module number to | |
| | configure (0 to 3) | |
| | unsigned char_ b_InputChannel CR_CHAN : Selection from digital | |
| | data[0] which IOTYPE input ( 0 to 2) | |
| +----------------------------------------------------------------------------+ |
| | Output Parameters : unsigned char *_ pb_ChannelStatus : Digital input channel | |
| | data[0] status | |
| | 0 : Channle is not active| |
| | 1 : Channle is active | |
| +----------------------------------------------------------------------------+ |
| | Return Value : 0: No error | |
| | -1: The handle parameter of the board is wrong | |
| | -2: The module parameter is wrong | |
| | -3: The module is not a SSI module | |
| | -4: The selected SSI digital input is wrong | |
| +----------------------------------------------------------------------------+ |
| */ |
| |
| int i_APCI1710_InsnBitsSSIDigitalIO(struct comedi_device *dev, struct comedi_subdevice *s, |
| struct comedi_insn *insn, unsigned int *data) |
| { |
| int i_ReturnValue = 0; |
| unsigned int dw_StatusReg; |
| unsigned char b_ModulNbr; |
| unsigned char b_InputChannel; |
| unsigned char *pb_ChannelStatus; |
| unsigned char *pb_InputStatus; |
| unsigned char b_IOType; |
| i_ReturnValue = insn->n; |
| b_ModulNbr = (unsigned char) CR_AREF(insn->chanspec); |
| b_IOType = (unsigned char) data[0]; |
| |
| /**************************/ |
| /* Test the module number */ |
| /**************************/ |
| |
| if (b_ModulNbr < 4) { |
| /***********************/ |
| /* Test if SSI counter */ |
| /***********************/ |
| |
| if ((devpriv->s_BoardInfos. |
| dw_MolduleConfiguration[b_ModulNbr] & |
| 0xFFFF0000UL) == APCI1710_SSI_COUNTER) { |
| switch (b_IOType) { |
| case APCI1710_SSI_SET_CHANNELON: |
| /*****************************/ |
| /* Set the digital output ON */ |
| /*****************************/ |
| |
| outl(1, devpriv->s_BoardInfos.ui_Address + 16 + |
| (64 * b_ModulNbr)); |
| break; |
| |
| case APCI1710_SSI_SET_CHANNELOFF: |
| /******************************/ |
| /* Set the digital output OFF */ |
| /******************************/ |
| |
| outl(0, devpriv->s_BoardInfos.ui_Address + 16 + |
| (64 * b_ModulNbr)); |
| break; |
| |
| case APCI1710_SSI_READ_1CHANNEL: |
| /******************************************/ |
| /* Test the digital imnput channel number */ |
| /******************************************/ |
| |
| b_InputChannel = (unsigned char) CR_CHAN(insn->chanspec); |
| pb_ChannelStatus = (unsigned char *) &data[0]; |
| |
| if (b_InputChannel <= 2) { |
| /**************************/ |
| /* Read all digital input */ |
| /**************************/ |
| |
| dw_StatusReg = |
| inl(devpriv->s_BoardInfos. |
| ui_Address + (64 * b_ModulNbr)); |
| *pb_ChannelStatus = |
| (unsigned char) (((~dw_StatusReg) >> (4 + |
| b_InputChannel)) |
| & 1); |
| } else { |
| /********************************/ |
| /* Selected digital input error */ |
| /********************************/ |
| |
| DPRINTK("Selected digital input error\n"); |
| i_ReturnValue = -4; |
| } |
| break; |
| |
| case APCI1710_SSI_READ_ALLCHANNEL: |
| /**************************/ |
| /* Read all digital input */ |
| /**************************/ |
| pb_InputStatus = (unsigned char *) &data[0]; |
| |
| dw_StatusReg = |
| inl(devpriv->s_BoardInfos.ui_Address + |
| (64 * b_ModulNbr)); |
| *pb_InputStatus = |
| (unsigned char) (((~dw_StatusReg) >> 4) & 7); |
| break; |
| |
| default: |
| printk("IO type wrong\n"); |
| |
| } /* switch end */ |
| } else { |
| /**********************************/ |
| /* The module is not a SSI module */ |
| /**********************************/ |
| |
| DPRINTK("The module is not a SSI module\n"); |
| i_ReturnValue = -3; |
| } |
| } else { |
| /***********************/ |
| /* Module number error */ |
| /***********************/ |
| |
| DPRINTK("Module number error\n"); |
| i_ReturnValue = -2; |
| } |
| |
| return i_ReturnValue; |
| } |
