diff options
Diffstat (limited to 'drivers/staging/epl/EplTimeruLinuxKernel.c')
| -rw-r--r-- | drivers/staging/epl/EplTimeruLinuxKernel.c | 446 |
1 files changed, 0 insertions, 446 deletions
diff --git a/drivers/staging/epl/EplTimeruLinuxKernel.c b/drivers/staging/epl/EplTimeruLinuxKernel.c deleted file mode 100644 index ff80fc80d021..000000000000 --- a/drivers/staging/epl/EplTimeruLinuxKernel.c +++ /dev/null @@ -1,446 +0,0 @@ -/**************************************************************************** - - (c) SYSTEC electronic GmbH, D-07973 Greiz, August-Bebel-Str. 29 - www.systec-electronic.com - - Project: openPOWERLINK - - Description: source file for EPL User Timermodule for Linux kernel module - - 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: EplTimeruLinuxKernel.c,v $ - - $Author: D.Krueger $ - - $Revision: 1.6 $ $Date: 2008/04/17 21:36:32 $ - - $State: Exp $ - - Build Environment: - KEIL uVision 2 - - ------------------------------------------------------------------------- - - Revision History: - - 2006/09/12 d.k.: start of the implementation - -****************************************************************************/ - -#include "user/EplTimeru.h" -#include <linux/timer.h> - -/***************************************************************************/ -/* */ -/* */ -/* G L O B A L D E F I N I T I O N S */ -/* */ -/* */ -/***************************************************************************/ - -//--------------------------------------------------------------------------- -// const defines -//--------------------------------------------------------------------------- - -//--------------------------------------------------------------------------- -// local types -//--------------------------------------------------------------------------- -typedef struct { - struct timer_list m_Timer; - tEplTimerArg TimerArgument; - -} tEplTimeruData; - -//--------------------------------------------------------------------------- -// modul globale vars -//--------------------------------------------------------------------------- - -//--------------------------------------------------------------------------- -// local function prototypes -//--------------------------------------------------------------------------- -static void EplTimeruCbMs(unsigned long ulParameter_p); - -/***************************************************************************/ -/* */ -/* */ -/* C L A S S <Epl Userspace-Timermodule for Linux Kernel> */ -/* */ -/* */ -/***************************************************************************/ -// -// Description: Epl Userspace-Timermodule for Linux Kernel -// -// -/***************************************************************************/ - -//=========================================================================// -// // -// P U B L I C F U N C T I O N S // -// // -//=========================================================================// - -//--------------------------------------------------------------------------- -// -// Function: EplTimeruInit -// -// Description: function inits first instance -// -// Parameters: void -// -// Returns: tEplKernel = errorcode -// -// State: -// -//--------------------------------------------------------------------------- - -tEplKernel EplTimeruInit(void) -{ - tEplKernel Ret; - - Ret = EplTimeruAddInstance(); - - return Ret; -} - -//--------------------------------------------------------------------------- -// -// Function: EplTimeruAddInstance -// -// Description: function inits additional instance -// -// Parameters: void -// -// Returns: tEplKernel = errorcode -// -// State: -// -//--------------------------------------------------------------------------- - -tEplKernel EplTimeruAddInstance(void) -{ - tEplKernel Ret; - - Ret = kEplSuccessful; - - return Ret; -} - -//--------------------------------------------------------------------------- -// -// Function: EplTimeruDelInstance -// -// Description: function deletes instance -// -> under Linux nothing to do -// -> no instance table needed -// -// Parameters: void -// -// Returns: tEplKernel = errorcode -// -// State: -// -//--------------------------------------------------------------------------- - -tEplKernel EplTimeruDelInstance(void) -{ - tEplKernel Ret; - - Ret = kEplSuccessful; - - return Ret; -} - -//--------------------------------------------------------------------------- -// -// Function: EplTimeruSetTimerMs -// -// Description: function creates a timer and returns the corresponding handle -// -// Parameters: pTimerHdl_p = pointer to a buffer to fill in the handle -// ulTime_p = time for timer in ms -// Argument_p = argument for timer -// -// Returns: tEplKernel = errorcode -// -// State: -// -//--------------------------------------------------------------------------- - -tEplKernel EplTimeruSetTimerMs(tEplTimerHdl *pTimerHdl_p, - unsigned long ulTime_p, - tEplTimerArg Argument_p) -{ - tEplKernel Ret = kEplSuccessful; - tEplTimeruData *pData; - - // check pointer to handle - if (pTimerHdl_p == NULL) { - Ret = kEplTimerInvalidHandle; - goto Exit; - } - - pData = (tEplTimeruData *) EPL_MALLOC(sizeof(tEplTimeruData)); - if (pData == NULL) { - Ret = kEplNoResource; - goto Exit; - } - - init_timer(&pData->m_Timer); - pData->m_Timer.function = EplTimeruCbMs; - pData->m_Timer.data = (unsigned long)pData; - pData->m_Timer.expires = jiffies + ulTime_p * HZ / 1000; - - EPL_MEMCPY(&pData->TimerArgument, &Argument_p, sizeof(tEplTimerArg)); - - add_timer(&pData->m_Timer); - - *pTimerHdl_p = (tEplTimerHdl) pData; - - Exit: - return Ret; -} - -//--------------------------------------------------------------------------- -// -// Function: EplTimeruModifyTimerMs -// -// Description: function changes a timer and returns the corresponding handle -// -// Parameters: pTimerHdl_p = pointer to a buffer to fill in the handle -// ulTime_p = time for timer in ms -// Argument_p = argument for timer -// -// Returns: tEplKernel = errorcode -// -// State: -// -//--------------------------------------------------------------------------- - -tEplKernel EplTimeruModifyTimerMs(tEplTimerHdl *pTimerHdl_p, - unsigned long ulTime_p, - tEplTimerArg Argument_p) -{ - tEplKernel Ret = kEplSuccessful; - tEplTimeruData *pData; - - // check pointer to handle - if (pTimerHdl_p == NULL) { - Ret = kEplTimerInvalidHandle; - goto Exit; - } - // check handle itself, i.e. was the handle initialized before - if (*pTimerHdl_p == 0) { - Ret = EplTimeruSetTimerMs(pTimerHdl_p, ulTime_p, Argument_p); - goto Exit; - } - pData = (tEplTimeruData *) * pTimerHdl_p; - if ((tEplTimeruData *) pData->m_Timer.data != pData) { - Ret = kEplTimerInvalidHandle; - goto Exit; - } - - mod_timer(&pData->m_Timer, (jiffies + ulTime_p * HZ / 1000)); - - // copy the TimerArg after the timer is restarted, - // so that a timer occured immediately before mod_timer - // won't use the new TimerArg and - // therefore the old timer cannot be distinguished from the new one. - // But if the new timer is too fast, it may get lost. - EPL_MEMCPY(&pData->TimerArgument, &Argument_p, sizeof(tEplTimerArg)); - - // check if timer is really running - if (timer_pending(&pData->m_Timer) == 0) { // timer is not running - // retry starting it - add_timer(&pData->m_Timer); - } - // set handle to pointer of tEplTimeruData -// *pTimerHdl_p = (tEplTimerHdl) pData; - - Exit: - return Ret; -} - -//--------------------------------------------------------------------------- -// -// Function: EplTimeruDeleteTimer -// -// Description: function deletes a timer -// -// Parameters: pTimerHdl_p = pointer to a buffer to fill in the handle -// -// Returns: tEplKernel = errorcode -// -// State: -// -//--------------------------------------------------------------------------- - -tEplKernel EplTimeruDeleteTimer(tEplTimerHdl *pTimerHdl_p) -{ - tEplKernel Ret = kEplSuccessful; - tEplTimeruData *pData; - - // check pointer to handle - if (pTimerHdl_p == NULL) { - Ret = kEplTimerInvalidHandle; - goto Exit; - } - // check handle itself, i.e. was the handle initialized before - if (*pTimerHdl_p == 0) { - Ret = kEplSuccessful; - goto Exit; - } - pData = (tEplTimeruData *) * pTimerHdl_p; - if ((tEplTimeruData *) pData->m_Timer.data != pData) { - Ret = kEplTimerInvalidHandle; - goto Exit; - } - -/* if (del_timer(&pData->m_Timer) == 1) - { - kfree(pData); - } -*/ - // try to delete the timer - del_timer(&pData->m_Timer); - // free memory in any case - kfree(pData); - - // uninitialize handle - *pTimerHdl_p = 0; - - Exit: - return Ret; - -} - -//--------------------------------------------------------------------------- -// -// Function: EplTimeruIsTimerActive -// -// Description: checks if the timer referenced by the handle is currently -// active. -// -// Parameters: TimerHdl_p = handle of the timer to check -// -// Returns: BOOL = TRUE, if active; -// FALSE, otherwise -// -// State: -// -//--------------------------------------------------------------------------- - -BOOL EplTimeruIsTimerActive(tEplTimerHdl TimerHdl_p) -{ - BOOL fActive = FALSE; - tEplTimeruData *pData; - - // check handle itself, i.e. was the handle initialized before - if (TimerHdl_p == 0) { // timer was not created yet, so it is not active - goto Exit; - } - pData = (tEplTimeruData *) TimerHdl_p; - if ((tEplTimeruData *) pData->m_Timer.data != pData) { // invalid timer - goto Exit; - } - // check if timer is running - if (timer_pending(&pData->m_Timer) == 0) { // timer is not running - goto Exit; - } - - fActive = TRUE; - - Exit: - return fActive; -} - -//=========================================================================// -// // -// P R I V A T E F U N C T I O N S // -// // -//=========================================================================// - -//--------------------------------------------------------------------------- -// -// Function: EplTimeruCbMs -// -// Description: function to process timer -// -// -// -// Parameters: lpParameter = pointer to structur of type tEplTimeruData -// -// -// Returns: (none) -// -// -// State: -// -//--------------------------------------------------------------------------- -static void EplTimeruCbMs(unsigned long ulParameter_p) -{ - tEplKernel Ret = kEplSuccessful; - tEplTimeruData *pData; - tEplEvent EplEvent; - tEplTimerEventArg TimerEventArg; - - pData = (tEplTimeruData *) ulParameter_p; - - // call event function - TimerEventArg.m_TimerHdl = (tEplTimerHdl) pData; - TimerEventArg.m_ulArg = pData->TimerArgument.m_ulArg; - - EplEvent.m_EventSink = pData->TimerArgument.m_EventSink; - EplEvent.m_EventType = kEplEventTypeTimer; - EPL_MEMSET(&EplEvent.m_NetTime, 0x00, sizeof(tEplNetTime)); - EplEvent.m_pArg = &TimerEventArg; - EplEvent.m_uiSize = sizeof(TimerEventArg); - - Ret = EplEventuPost(&EplEvent); - - // d.k. do not free memory, user has to call EplTimeruDeleteTimer() - //kfree(pData); - -} - -// EOF |