diff options
Diffstat (limited to 'drivers/net/sk98lin/sktimer.c')
| -rw-r--r-- | drivers/net/sk98lin/sktimer.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/drivers/net/sk98lin/sktimer.c b/drivers/net/sk98lin/sktimer.c deleted file mode 100644 index 4e46295..0000000 --- a/drivers/net/sk98lin/sktimer.c +++ /dev/null @@ -1,250 +0,0 @@ -/****************************************************************************** - * - * Name: sktimer.c - * Project: Gigabit Ethernet Adapters, Event Scheduler Module - * Version: $Revision: 1.14 $ - * Date: $Date: 2003/09/16 13:46:51 $ - * Purpose: High level timer functions. - * - ******************************************************************************/ - -/****************************************************************************** - * - * (C)Copyright 1998-2002 SysKonnect GmbH. - * (C)Copyright 2002-2003 Marvell. - * - * 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. - * - * The information in this file is provided "AS IS" without warranty. - * - ******************************************************************************/ - - -/* - * Event queue and dispatcher - */ -#if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM)))) -static const char SysKonnectFileId[] = - "@(#) $Id: sktimer.c,v 1.14 2003/09/16 13:46:51 rschmidt Exp $ (C) Marvell."; -#endif - -#include "h/skdrv1st.h" /* Driver Specific Definitions */ -#include "h/skdrv2nd.h" /* Adapter Control- and Driver specific Def. */ - -#ifdef __C2MAN__ -/* - Event queue management. - - General Description: - - */ -intro() -{} -#endif - - -/* Forward declaration */ -static void timer_done(SK_AC *pAC,SK_IOC Ioc,int Restart); - - -/* - * Inits the software timer - * - * needs to be called during Init level 1. - */ -void SkTimerInit( -SK_AC *pAC, /* Adapters context */ -SK_IOC Ioc, /* IoContext */ -int Level) /* Init Level */ -{ - switch (Level) { - case SK_INIT_DATA: - pAC->Tim.StQueue = NULL; - break; - case SK_INIT_IO: - SkHwtInit(pAC, Ioc); - SkTimerDone(pAC, Ioc); - break; - default: - break; - } -} - -/* - * Stops a high level timer - * - If a timer is not in the queue the function returns normally, too. - */ -void SkTimerStop( -SK_AC *pAC, /* Adapters context */ -SK_IOC Ioc, /* IoContext */ -SK_TIMER *pTimer) /* Timer Pointer to be started */ -{ - SK_TIMER **ppTimPrev; - SK_TIMER *pTm; - - /* - * remove timer from queue - */ - pTimer->TmActive = SK_FALSE; - - if (pAC->Tim.StQueue == pTimer && !pTimer->TmNext) { - SkHwtStop(pAC, Ioc); - } - - for (ppTimPrev = &pAC->Tim.StQueue; (pTm = *ppTimPrev); - ppTimPrev = &pTm->TmNext ) { - - if (pTm == pTimer) { - /* - * Timer found in queue - * - dequeue it and - * - correct delta of the next timer - */ - *ppTimPrev = pTm->TmNext; - - if (pTm->TmNext) { - /* correct delta of next timer in queue */ - pTm->TmNext->TmDelta += pTm->TmDelta; - } - return; - } - } -} - -/* - * Start a high level software timer - */ -void SkTimerStart( -SK_AC *pAC, /* Adapters context */ -SK_IOC Ioc, /* IoContext */ -SK_TIMER *pTimer, /* Timer Pointer to be started */ -SK_U32 Time, /* Time value */ -SK_U32 Class, /* Event Class for this timer */ -SK_U32 Event, /* Event Value for this timer */ -SK_EVPARA Para) /* Event Parameter for this timer */ -{ - SK_TIMER **ppTimPrev; - SK_TIMER *pTm; - SK_U32 Delta; - - Time /= 16; /* input is uS, clock ticks are 16uS */ - - if (!Time) - Time = 1; - - SkTimerStop(pAC, Ioc, pTimer); - - pTimer->TmClass = Class; - pTimer->TmEvent = Event; - pTimer->TmPara = Para; - pTimer->TmActive = SK_TRUE; - - if (!pAC->Tim.StQueue) { - /* First Timer to be started */ - pAC->Tim.StQueue = pTimer; - pTimer->TmNext = NULL; - pTimer->TmDelta = Time; - - SkHwtStart(pAC, Ioc, Time); - - return; - } - - /* - * timer correction - */ - timer_done(pAC, Ioc, 0); - - /* - * find position in queue - */ - Delta = 0; - for (ppTimPrev = &pAC->Tim.StQueue; (pTm = *ppTimPrev); - ppTimPrev = &pTm->TmNext ) { - - if (Delta + pTm->TmDelta > Time) { - /* Position found */ - /* Here the timer needs to be inserted. */ - break; - } - Delta += pTm->TmDelta; - } - - /* insert in queue */ - *ppTimPrev = pTimer; - pTimer->TmNext = pTm; - pTimer->TmDelta = Time - Delta; - - if (pTm) { - /* There is a next timer - * -> correct its Delta value. - */ - pTm->TmDelta -= pTimer->TmDelta; - } - - /* restart with first */ - SkHwtStart(pAC, Ioc, pAC->Tim.StQueue->TmDelta); -} - - -void SkTimerDone( -SK_AC *pAC, /* Adapters context */ -SK_IOC Ioc) /* IoContext */ -{ - timer_done(pAC, Ioc, 1); -} - - -static void timer_done( -SK_AC *pAC, /* Adapters context */ -SK_IOC Ioc, /* IoContext */ -int Restart) /* Do we need to restart the Hardware timer ? */ -{ - SK_U32 Delta; - SK_TIMER *pTm; - SK_TIMER *pTComp; /* Timer completed now now */ - SK_TIMER **ppLast; /* Next field of Last timer to be deq */ - int Done = 0; - - Delta = SkHwtRead(pAC, Ioc); - - ppLast = &pAC->Tim.StQueue; - pTm = pAC->Tim.StQueue; - while (pTm && !Done) { - if (Delta >= pTm->TmDelta) { - /* Timer ran out */ - pTm->TmActive = SK_FALSE; - Delta -= pTm->TmDelta; - ppLast = &pTm->TmNext; - pTm = pTm->TmNext; - } - else { - /* We found the first timer that did not run out */ - pTm->TmDelta -= Delta; - Delta = 0; - Done = 1; - } - } - *ppLast = NULL; - /* - * pTm points to the first Timer that did not run out. - * StQueue points to the first Timer that run out. - */ - - for ( pTComp = pAC->Tim.StQueue; pTComp; pTComp = pTComp->TmNext) { - SkEventQueue(pAC,pTComp->TmClass, pTComp->TmEvent, pTComp->TmPara); - } - - /* Set head of timer queue to the first timer that did not run out */ - pAC->Tim.StQueue = pTm; - - if (Restart && pAC->Tim.StQueue) { - /* Restart HW timer */ - SkHwtStart(pAC, Ioc, pAC->Tim.StQueue->TmDelta); - } -} - -/* End of file */ |
