248 lines
6.2 KiB
C
248 lines
6.2 KiB
C
/******************************************************************************
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*
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* Name: skqueue.c
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* Project: Gigabit Ethernet Adapters, Event Scheduler Module
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* Version: $Revision: 2.3 $
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* Date: $Date: 2004/05/14 13:28:18 $
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* Purpose: Management of an event queue.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* (C)Copyright 1998-2002 SysKonnect GmbH.
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* (C)Copyright 2002-2003 Marvell.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* The information in this file is provided "AS IS" without warranty.
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*
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******************************************************************************/
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#include <config.h>
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#ifdef CONFIG_SK98
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/*
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* Event queue and dispatcher
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*/
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#if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM))))
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static const char SysKonnectFileId[] =
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"@(#) $Id: skqueue.c,v 2.3 2004/05/14 13:28:18 malthoff Exp $ (C) Marvell.";
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#endif
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#include "h/skdrv1st.h" /* Driver Specific Definitions */
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#include "h/skqueue.h" /* Queue Definitions */
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#include "h/skdrv2nd.h" /* Adapter Control- and Driver specific Def. */
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#ifdef __C2MAN__
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/*
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Event queue management.
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General Description:
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*/
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intro()
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{}
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#endif
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#define PRINTF(a,b,c)
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/******************************************************************************
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*
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* SkEventInit() - init event queue management
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*
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* Description:
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* This function initializes event queue management.
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* It must be called during init level 0.
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*
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* Returns:
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* nothing
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*/
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void SkEventInit(
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SK_AC *pAC, /* Adapter context */
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SK_IOC Ioc, /* IO context */
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int Level) /* Init level */
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{
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switch (Level) {
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case SK_INIT_DATA:
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pAC->Event.EvPut = pAC->Event.EvGet = pAC->Event.EvQueue;
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break;
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default:
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break;
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}
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}
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/******************************************************************************
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*
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* SkEventQueue() - add event to queue
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*
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* Description:
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* This function adds an event to the event queue.
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* At least Init Level 1 is required to queue events,
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* but will be scheduled add Init Level 2.
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*
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* returns:
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* nothing
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*/
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void SkEventQueue(
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SK_AC *pAC, /* Adapters context */
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SK_U32 Class, /* Event Class */
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SK_U32 Event, /* Event to be queued */
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SK_EVPARA Para) /* Event parameter */
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{
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if (pAC->GIni.GILevel == SK_INIT_DATA) {
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SK_ERR_LOG(pAC, SK_ERRCL_NORES, SKERR_Q_E003, SKERR_Q_E003MSG);
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}
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else {
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pAC->Event.EvPut->Class = Class;
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pAC->Event.EvPut->Event = Event;
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pAC->Event.EvPut->Para = Para;
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if (++pAC->Event.EvPut == &pAC->Event.EvQueue[SK_MAX_EVENT])
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pAC->Event.EvPut = pAC->Event.EvQueue;
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if (pAC->Event.EvPut == pAC->Event.EvGet) {
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SK_ERR_LOG(pAC, SK_ERRCL_NORES, SKERR_Q_E001, SKERR_Q_E001MSG);
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}
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}
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}
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/******************************************************************************
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*
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* SkEventDispatcher() - Event Dispatcher
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*
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* Description:
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* The event dispatcher performs the following operations:
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* o while event queue is not empty
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* - get event from queue
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* - send event to state machine
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* end
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*
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* CAUTION:
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* The event functions MUST report an error if performing a reinitialization
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* of the event queue, e.g. performing level Init 0..2 while in dispatcher
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* call!
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* ANY OTHER return value delays scheduling the other events in the
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* queue. In this case the event blocks the queue until
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* the error condition is cleared!
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*
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* Returns:
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* The return value error reported by individual event function
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*/
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int SkEventDispatcher(
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SK_AC *pAC, /* Adapters Context */
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SK_IOC Ioc) /* Io context */
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{
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SK_EVENTELEM *pEv; /* pointer into queue */
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SK_U32 Class;
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int Rtv;
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if (pAC->GIni.GILevel != SK_INIT_RUN) {
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SK_ERR_LOG(pAC, SK_ERRCL_NORES, SKERR_Q_E005, SKERR_Q_E005MSG);
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}
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pEv = pAC->Event.EvGet;
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PRINTF("dispatch get %x put %x\n", pEv, pAC->Event.ev_put);
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while (pEv != pAC->Event.EvPut) {
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PRINTF("dispatch Class %d Event %d\n", pEv->Class, pEv->Event);
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switch (Class = pEv->Class) {
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#ifndef SK_USE_LAC_EV
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#ifndef SK_SLIM
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case SKGE_RLMT: /* RLMT Event */
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Rtv = SkRlmtEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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case SKGE_I2C: /* I2C Event */
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Rtv = SkI2cEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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#ifdef SK_PNMI_SUPPORT
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case SKGE_PNMI: /* PNMI Event */
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Rtv = SkPnmiEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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#endif /* SK_PNMI_SUPPORT */
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#endif /* not SK_SLIM */
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#endif /* not SK_USE_LAC_EV */
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case SKGE_DRV: /* Driver Event */
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Rtv = SkDrvEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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#ifndef SK_USE_SW_TIMER
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case SKGE_HWAC:
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Rtv = SkGeSirqEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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#else /* !SK_USE_SW_TIMER */
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case SKGE_SWT :
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Rtv = SkSwtEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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#endif /* !SK_USE_SW_TIMER */
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#ifdef SK_USE_LAC_EV
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case SKGE_LACP :
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Rtv = SkLacpEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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case SKGE_RSF :
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Rtv = SkRsfEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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case SKGE_MARKER :
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Rtv = SkMarkerEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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case SKGE_FD :
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Rtv = SkFdEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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#endif /* SK_USE_LAC_EV */
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#ifdef SK_ASF
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case SKGE_ASF :
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Rtv = SkAsfEvent(pAC,Ioc,pEv->Event,pEv->Para);
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break ;
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#endif
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#ifdef SK_USE_CSUM
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case SKGE_CSUM :
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Rtv = SkCsEvent(pAC, Ioc, pEv->Event, pEv->Para);
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break;
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#endif /* SK_USE_CSUM */
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default :
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#if 0 // u-boot
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SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_Q_E002, SKERR_Q_E002MSG);
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#endif
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Rtv = 0;
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}
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if (Rtv != 0) {
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/*
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* Special Case: See CAUTION statement above.
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* We assume the event queue is reset.
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*/
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if (pAC->Event.EvGet != pAC->Event.EvQueue &&
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pAC->Event.EvGet != pEv) {
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/*
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* Create an error log entry if the
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* event queue isn't reset.
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* In this case it may be blocked.
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*/
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SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_Q_E004, SKERR_Q_E004MSG);
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}
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return(Rtv);
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}
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if (++pEv == &pAC->Event.EvQueue[SK_MAX_EVENT])
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pEv = pAC->Event.EvQueue;
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/* Renew get: it is used in queue_events to detect overruns */
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pAC->Event.EvGet = pEv;
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}
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return(0);
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}
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/* End of file */
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#endif
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