diff options
Diffstat (limited to 'drivers/net/sk98lin/skqueue.c')
| -rw-r--r-- | drivers/net/sk98lin/skqueue.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/drivers/net/sk98lin/skqueue.c b/drivers/net/sk98lin/skqueue.c new file mode 100644 index 000000000000..0275b4f71d9b --- /dev/null +++ b/drivers/net/sk98lin/skqueue.c @@ -0,0 +1,179 @@ +/****************************************************************************** + * + * Name: skqueue.c + * Project: Gigabit Ethernet Adapters, Event Scheduler Module + * Version: $Revision: 1.20 $ + * Date: $Date: 2003/09/16 13:44:00 $ + * Purpose: Management of an event queue. + * + ******************************************************************************/ + +/****************************************************************************** + * + * (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: skqueue.c,v 1.20 2003/09/16 13:44:00 rschmidt Exp $ (C) Marvell."; +#endif + +#include "h/skdrv1st.h" /* Driver Specific Definitions */ +#include "h/skqueue.h" /* Queue Definitions */ +#include "h/skdrv2nd.h" /* Adapter Control- and Driver specific Def. */ + +#ifdef __C2MAN__ +/* + Event queue management. + + General Description: + + */ +intro() +{} +#endif + +#define PRINTF(a,b,c) + +/* + * init event queue management + * + * Must be called during init level 0. + */ +void SkEventInit( +SK_AC *pAC, /* Adapter context */ +SK_IOC Ioc, /* IO context */ +int Level) /* Init level */ +{ + switch (Level) { + case SK_INIT_DATA: + pAC->Event.EvPut = pAC->Event.EvGet = pAC->Event.EvQueue; + break; + default: + break; + } +} + +/* + * add event to queue + */ +void SkEventQueue( +SK_AC *pAC, /* Adapters context */ +SK_U32 Class, /* Event Class */ +SK_U32 Event, /* Event to be queued */ +SK_EVPARA Para) /* Event parameter */ +{ + pAC->Event.EvPut->Class = Class; + pAC->Event.EvPut->Event = Event; + pAC->Event.EvPut->Para = Para; + + if (++pAC->Event.EvPut == &pAC->Event.EvQueue[SK_MAX_EVENT]) + pAC->Event.EvPut = pAC->Event.EvQueue; + + if (pAC->Event.EvPut == pAC->Event.EvGet) { + SK_ERR_LOG(pAC, SK_ERRCL_NORES, SKERR_Q_E001, SKERR_Q_E001MSG); + } +} + +/* + * event dispatcher + * while event queue is not empty + * get event from queue + * send command to state machine + * end + * return error reported by individual Event function + * 0 if no error occured. + */ +int SkEventDispatcher( +SK_AC *pAC, /* Adapters Context */ +SK_IOC Ioc) /* Io context */ +{ + SK_EVENTELEM *pEv; /* pointer into queue */ + SK_U32 Class; + int Rtv; + + pEv = pAC->Event.EvGet; + + PRINTF("dispatch get %x put %x\n", pEv, pAC->Event.ev_put); + + while (pEv != pAC->Event.EvPut) { + PRINTF("dispatch Class %d Event %d\n", pEv->Class, pEv->Event); + + switch (Class = pEv->Class) { +#ifndef SK_USE_LAC_EV +#ifndef SK_SLIM + case SKGE_RLMT: /* RLMT Event */ + Rtv = SkRlmtEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; + case SKGE_I2C: /* I2C Event */ + Rtv = SkI2cEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; + case SKGE_PNMI: /* PNMI Event */ + Rtv = SkPnmiEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; +#endif /* not SK_SLIM */ +#endif /* not SK_USE_LAC_EV */ + case SKGE_DRV: /* Driver Event */ + Rtv = SkDrvEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; +#ifndef SK_USE_SW_TIMER + case SKGE_HWAC: + Rtv = SkGeSirqEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; +#else /* !SK_USE_SW_TIMER */ + case SKGE_SWT : + Rtv = SkSwtEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; +#endif /* !SK_USE_SW_TIMER */ +#ifdef SK_USE_LAC_EV + case SKGE_LACP : + Rtv = SkLacpEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; + case SKGE_RSF : + Rtv = SkRsfEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; + case SKGE_MARKER : + Rtv = SkMarkerEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; + case SKGE_FD : + Rtv = SkFdEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; +#endif /* SK_USE_LAC_EV */ +#ifdef SK_USE_CSUM + case SKGE_CSUM : + Rtv = SkCsEvent(pAC, Ioc, pEv->Event, pEv->Para); + break; +#endif /* SK_USE_CSUM */ + default : + SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_Q_E002, SKERR_Q_E002MSG); + Rtv = 0; + } + + if (Rtv != 0) { + return(Rtv); + } + + if (++pEv == &pAC->Event.EvQueue[SK_MAX_EVENT]) + pEv = pAC->Event.EvQueue; + + /* Renew get: it is used in queue_events to detect overruns */ + pAC->Event.EvGet = pEv; + } + + return(0); +} + +/* End of file */ |