| /**************************************************************************** |
| |
| (c) SYSTEC electronic GmbH, D-07973 Greiz, August-Bebel-Str. 29 |
| www.systec-electronic.com |
| |
| Project: openPOWERLINK |
| |
| Description: source file for EPL API module (process image) |
| |
| License: |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions |
| are met: |
| |
| 1. Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| |
| 2. Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| |
| 3. Neither the name of SYSTEC electronic GmbH nor the names of its |
| contributors may be used to endorse or promote products derived |
| from this software without prior written permission. For written |
| permission, please contact info@systec-electronic.com. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| POSSIBILITY OF SUCH DAMAGE. |
| |
| Severability Clause: |
| |
| If a provision of this License is or becomes illegal, invalid or |
| unenforceable in any jurisdiction, that shall not affect: |
| 1. the validity or enforceability in that jurisdiction of any other |
| provision of this License; or |
| 2. the validity or enforceability in other jurisdictions of that or |
| any other provision of this License. |
| |
| ------------------------------------------------------------------------- |
| |
| $RCSfile: EplApiProcessImage.c,v $ |
| |
| $Author: D.Krueger $ |
| |
| $Revision: 1.7 $ $Date: 2008/11/13 17:13:09 $ |
| |
| $State: Exp $ |
| |
| Build Environment: |
| GCC V3.4 |
| |
| ------------------------------------------------------------------------- |
| |
| Revision History: |
| |
| 2006/10/10 d.k.: start of the implementation, version 1.00 |
| |
| ****************************************************************************/ |
| |
| #include "Epl.h" |
| |
| #include <linux/uaccess.h> |
| |
| /***************************************************************************/ |
| /* */ |
| /* */ |
| /* G L O B A L D E F I N I T I O N S */ |
| /* */ |
| /* */ |
| /***************************************************************************/ |
| |
| //--------------------------------------------------------------------------- |
| // const defines |
| //--------------------------------------------------------------------------- |
| |
| //--------------------------------------------------------------------------- |
| // local types |
| //--------------------------------------------------------------------------- |
| |
| //--------------------------------------------------------------------------- |
| // modul globale vars |
| //--------------------------------------------------------------------------- |
| |
| //--------------------------------------------------------------------------- |
| // local function prototypes |
| //--------------------------------------------------------------------------- |
| |
| /***************************************************************************/ |
| /* */ |
| /* */ |
| /* C L A S S EplApi */ |
| /* */ |
| /* */ |
| /***************************************************************************/ |
| // |
| // Description: |
| // |
| // |
| /***************************************************************************/ |
| |
| //=========================================================================// |
| // // |
| // P R I V A T E D E F I N I T I O N S // |
| // // |
| //=========================================================================// |
| |
| //--------------------------------------------------------------------------- |
| // const defines |
| //--------------------------------------------------------------------------- |
| |
| //--------------------------------------------------------------------------- |
| // local types |
| //--------------------------------------------------------------------------- |
| |
| #if ((EPL_API_PROCESS_IMAGE_SIZE_IN > 0) || (EPL_API_PROCESS_IMAGE_SIZE_OUT > 0)) |
| typedef struct { |
| #if EPL_API_PROCESS_IMAGE_SIZE_IN > 0 |
| u8 m_abProcessImageInput[EPL_API_PROCESS_IMAGE_SIZE_IN]; |
| #endif |
| #if EPL_API_PROCESS_IMAGE_SIZE_OUT > 0 |
| u8 m_abProcessImageOutput[EPL_API_PROCESS_IMAGE_SIZE_OUT]; |
| #endif |
| |
| } tEplApiProcessImageInstance; |
| |
| //--------------------------------------------------------------------------- |
| // local vars |
| //--------------------------------------------------------------------------- |
| |
| static tEplApiProcessImageInstance EplApiProcessImageInstance_g; |
| #endif |
| |
| //--------------------------------------------------------------------------- |
| // local function prototypes |
| //--------------------------------------------------------------------------- |
| |
| //=========================================================================// |
| // // |
| // P U B L I C F U N C T I O N S // |
| // // |
| //=========================================================================// |
| |
| //--------------------------------------------------------------------------- |
| // |
| // Function: EplApiProcessImageSetup() |
| // |
| // Description: sets up static process image |
| // |
| // Parameters: (none) |
| // |
| // Returns: tEplKernel = error code |
| // |
| // |
| // State: |
| // |
| //--------------------------------------------------------------------------- |
| |
| tEplKernel EplApiProcessImageSetup(void) |
| { |
| tEplKernel Ret = kEplSuccessful; |
| #if ((EPL_API_PROCESS_IMAGE_SIZE_IN > 0) || (EPL_API_PROCESS_IMAGE_SIZE_OUT > 0)) |
| unsigned int uiVarEntries; |
| tEplObdSize ObdSize; |
| #endif |
| |
| #if EPL_API_PROCESS_IMAGE_SIZE_IN > 0 |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_IN; |
| ObdSize = 1; |
| Ret = EplApiLinkObject(0x2000, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageInput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_IN; |
| ObdSize = 1; |
| Ret = EplApiLinkObject(0x2001, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageInput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| ObdSize = 2; |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_IN / ObdSize; |
| Ret = EplApiLinkObject(0x2010, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageInput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| ObdSize = 2; |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_IN / ObdSize; |
| Ret = EplApiLinkObject(0x2011, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageInput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| ObdSize = 4; |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_IN / ObdSize; |
| Ret = EplApiLinkObject(0x2020, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageInput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| ObdSize = 4; |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_IN / ObdSize; |
| Ret = EplApiLinkObject(0x2021, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageInput, &uiVarEntries, &ObdSize, |
| 1); |
| #endif |
| |
| #if EPL_API_PROCESS_IMAGE_SIZE_OUT > 0 |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_OUT; |
| ObdSize = 1; |
| Ret = EplApiLinkObject(0x2030, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageOutput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_OUT; |
| ObdSize = 1; |
| Ret = EplApiLinkObject(0x2031, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageOutput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| ObdSize = 2; |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_OUT / ObdSize; |
| Ret = EplApiLinkObject(0x2040, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageOutput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| ObdSize = 2; |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_OUT / ObdSize; |
| Ret = EplApiLinkObject(0x2041, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageOutput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| ObdSize = 4; |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_OUT / ObdSize; |
| Ret = EplApiLinkObject(0x2050, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageOutput, &uiVarEntries, &ObdSize, |
| 1); |
| |
| ObdSize = 4; |
| uiVarEntries = EPL_API_PROCESS_IMAGE_SIZE_OUT / ObdSize; |
| Ret = EplApiLinkObject(0x2051, |
| EplApiProcessImageInstance_g. |
| m_abProcessImageOutput, &uiVarEntries, &ObdSize, |
| 1); |
| #endif |
| |
| return Ret; |
| } |
| |
| //---------------------------------------------------------------------------- |
| // Function: EplApiProcessImageExchangeIn() |
| // |
| // Description: replaces passed input process image with the one of EPL stack |
| // |
| // Parameters: pPI_p = input process image |
| // |
| // Returns: tEplKernel = error code |
| // |
| // State: |
| //---------------------------------------------------------------------------- |
| |
| tEplKernel EplApiProcessImageExchangeIn(tEplApiProcessImage *pPI_p) |
| { |
| tEplKernel Ret = kEplSuccessful; |
| |
| #if EPL_API_PROCESS_IMAGE_SIZE_IN > 0 |
| copy_to_user(pPI_p->m_pImage, |
| EplApiProcessImageInstance_g.m_abProcessImageInput, |
| min(pPI_p->m_uiSize, |
| sizeof(EplApiProcessImageInstance_g. |
| m_abProcessImageInput))); |
| #endif |
| |
| return Ret; |
| } |
| |
| //---------------------------------------------------------------------------- |
| // Function: EplApiProcessImageExchangeOut() |
| // |
| // Description: copies passed output process image to EPL stack. |
| // |
| // Parameters: pPI_p = output process image |
| // |
| // Returns: tEplKernel = error code |
| // |
| // State: |
| //---------------------------------------------------------------------------- |
| |
| tEplKernel EplApiProcessImageExchangeOut(tEplApiProcessImage *pPI_p) |
| { |
| tEplKernel Ret = kEplSuccessful; |
| |
| #if EPL_API_PROCESS_IMAGE_SIZE_OUT > 0 |
| copy_from_user(EplApiProcessImageInstance_g.m_abProcessImageOutput, |
| pPI_p->m_pImage, |
| min(pPI_p->m_uiSize, |
| sizeof(EplApiProcessImageInstance_g. |
| m_abProcessImageOutput))); |
| #endif |
| |
| return Ret; |
| } |
| |
| //=========================================================================// |
| // // |
| // P R I V A T E F U N C T I O N S // |
| // // |
| //=========================================================================// |
| |
| // EOF |
