diff options
Diffstat (limited to 'drivers/sk98lin/sktimer.c')
| -rw-r--r-- | drivers/sk98lin/sktimer.c | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/drivers/sk98lin/sktimer.c b/drivers/sk98lin/sktimer.c deleted file mode 100644 index 37cd4c9..0000000 --- a/drivers/sk98lin/sktimer.c +++ /dev/null @@ -1,297 +0,0 @@ -/****************************************************************************** - * - * Name: sktimer.c - * Project: GEnesis, PCI Gigabit Ethernet Adapter - * Version: $Revision: 1.12 $ - * Date: $Date: 1999/11/22 13:38:51 $ - * Purpose: High level timer functions. - * - ******************************************************************************/ - -/****************************************************************************** - * - * (C)Copyright 1998,1999 SysKonnect, - * a business unit of Schneider & Koch & Co. Datensysteme GmbH. - * - * 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. - * - ******************************************************************************/ - -/****************************************************************************** - * - * History: - * - * $Log: sktimer.c,v $ - * Revision 1.12 1999/11/22 13:38:51 cgoos - * Changed license header to GPL. - * - * Revision 1.11 1998/12/17 13:24:13 gklug - * fix: restart problem: do NOT destroy timer queue if init 1 is done - * - * Revision 1.10 1998/10/15 15:11:36 gklug - * fix: ID_sccs to SysKonnectFileId - * - * Revision 1.9 1998/09/15 15:15:04 cgoos - * Changed TRUE/FALSE to SK_TRUE/SK_FALSE - * - * Revision 1.8 1998/09/08 08:47:55 gklug - * add: init level handling - * - * Revision 1.7 1998/08/19 09:50:53 gklug - * fix: remove struct keyword from c-code (see CCC) add typedefs - * - * Revision 1.6 1998/08/17 13:43:13 gklug - * chg: Parameter will be union of 64bit para, 2 times SK_U32 or SK_PTR - * - * Revision 1.5 1998/08/14 07:09:14 gklug - * fix: chg pAc -> pAC - * - * Revision 1.4 1998/08/07 12:53:46 gklug - * fix: first compiled version - * - * Revision 1.3 1998/08/07 09:31:53 gklug - * fix: delta spelling - * - * Revision 1.2 1998/08/07 09:31:02 gklug - * adapt functions to new c coding conventions - * rmv: "fast" handling - * chg: inserting of new timer in queue. - * chg: event queue generation when timer runs out - * - * Revision 1.1 1998/08/05 11:27:55 gklug - * first version: adapted from SMT - * - * - * - * - ******************************************************************************/ - - -#include <config.h> - -#ifdef CONFIG_SK98 - -/* - Event queue and dispatcher -*/ -static const char SysKonnectFileId[] = - "$Header: /usr56/projects/ge/schedule/sktimer.c,v 1.12 1999/11/22 13:38:51 cgoos Exp $" ; - -#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 = 0 ; - 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 = 0 ; - 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 ; - } - - /* - * start new 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 = 0 ; - /* - * 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) ; - } -} - -#endif /* CONFIG_SK98 */ - -/* End of file */ |