Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/net/sk98lin/sktimer.c b/drivers/net/sk98lin/sktimer.c
new file mode 100644
index 0000000..4e46295
--- /dev/null
+++ b/drivers/net/sk98lin/sktimer.c
@@ -0,0 +1,250 @@
+/******************************************************************************
+ *
+ * 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 */