diff options
Diffstat (limited to 'drivers/net/sk98lin/skgehwt.c')
| -rw-r--r-- | drivers/net/sk98lin/skgehwt.c | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/drivers/net/sk98lin/skgehwt.c b/drivers/net/sk98lin/skgehwt.c deleted file mode 100644 index db670993c2d..00000000000 --- a/drivers/net/sk98lin/skgehwt.c +++ /dev/null | |||
| @@ -1,171 +0,0 @@ | |||
| 1 | /****************************************************************************** | ||
| 2 | * | ||
| 3 | * Name: skgehwt.c | ||
| 4 | * Project: Gigabit Ethernet Adapters, Event Scheduler Module | ||
| 5 | * Version: $Revision: 1.15 $ | ||
| 6 | * Date: $Date: 2003/09/16 13:41:23 $ | ||
| 7 | * Purpose: Hardware Timer | ||
| 8 | * | ||
| 9 | ******************************************************************************/ | ||
| 10 | |||
| 11 | /****************************************************************************** | ||
| 12 | * | ||
| 13 | * (C)Copyright 1998-2002 SysKonnect GmbH. | ||
| 14 | * (C)Copyright 2002-2003 Marvell. | ||
| 15 | * | ||
| 16 | * This program is free software; you can redistribute it and/or modify | ||
| 17 | * it under the terms of the GNU General Public License as published by | ||
| 18 | * the Free Software Foundation; either version 2 of the License, or | ||
| 19 | * (at your option) any later version. | ||
| 20 | * | ||
| 21 | * The information in this file is provided "AS IS" without warranty. | ||
| 22 | * | ||
| 23 | ******************************************************************************/ | ||
| 24 | |||
| 25 | /* | ||
| 26 | * Event queue and dispatcher | ||
| 27 | */ | ||
| 28 | #if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM)))) | ||
| 29 | static const char SysKonnectFileId[] = | ||
| 30 | "@(#) $Id: skgehwt.c,v 1.15 2003/09/16 13:41:23 rschmidt Exp $ (C) Marvell."; | ||
| 31 | #endif | ||
| 32 | |||
| 33 | #include "h/skdrv1st.h" /* Driver Specific Definitions */ | ||
| 34 | #include "h/skdrv2nd.h" /* Adapter Control- and Driver specific Def. */ | ||
| 35 | |||
| 36 | #ifdef __C2MAN__ | ||
| 37 | /* | ||
| 38 | * Hardware Timer function queue management. | ||
| 39 | */ | ||
| 40 | intro() | ||
| 41 | {} | ||
| 42 | #endif | ||
| 43 | |||
| 44 | /* | ||
| 45 | * Prototypes of local functions. | ||
| 46 | */ | ||
| 47 | #define SK_HWT_MAX (65000) | ||
| 48 | |||
| 49 | /* correction factor */ | ||
| 50 | #define SK_HWT_FAC (1000 * (SK_U32)pAC->GIni.GIHstClkFact / 100) | ||
| 51 | |||
| 52 | /* | ||
| 53 | * Initialize hardware timer. | ||
| 54 | * | ||
| 55 | * Must be called during init level 1. | ||
| 56 | */ | ||
| 57 | void SkHwtInit( | ||
| 58 | SK_AC *pAC, /* Adapters context */ | ||
| 59 | SK_IOC Ioc) /* IoContext */ | ||
| 60 | { | ||
| 61 | pAC->Hwt.TStart = 0 ; | ||
| 62 | pAC->Hwt.TStop = 0 ; | ||
| 63 | pAC->Hwt.TActive = SK_FALSE; | ||
| 64 | |||
| 65 | SkHwtStop(pAC, Ioc); | ||
| 66 | } | ||
| 67 | |||
| 68 | /* | ||
| 69 | * | ||
| 70 | * Start hardware timer (clock ticks are 16us). | ||
| 71 | * | ||
| 72 | */ | ||
| 73 | void SkHwtStart( | ||
| 74 | SK_AC *pAC, /* Adapters context */ | ||
| 75 | SK_IOC Ioc, /* IoContext */ | ||
| 76 | SK_U32 Time) /* Time in units of 16us to load the timer with. */ | ||
| 77 | { | ||
| 78 | SK_U32 Cnt; | ||
| 79 | |||
| 80 | if (Time > SK_HWT_MAX) | ||
| 81 | Time = SK_HWT_MAX; | ||
| 82 | |||
| 83 | pAC->Hwt.TStart = Time; | ||
| 84 | pAC->Hwt.TStop = 0L; | ||
| 85 | |||
| 86 | Cnt = Time; | ||
| 87 | |||
| 88 | /* | ||
| 89 | * if time < 16 us | ||
| 90 | * time = 16 us | ||
| 91 | */ | ||
| 92 | if (!Cnt) { | ||
| 93 | Cnt++; | ||
| 94 | } | ||
| 95 | |||
| 96 | SK_OUT32(Ioc, B2_TI_INI, Cnt * SK_HWT_FAC); | ||
| 97 | |||
| 98 | SK_OUT16(Ioc, B2_TI_CTRL, TIM_START); /* Start timer. */ | ||
| 99 | |||
| 100 | pAC->Hwt.TActive = SK_TRUE; | ||
| 101 | } | ||
| 102 | |||
| 103 | /* | ||
| 104 | * Stop hardware timer. | ||
| 105 | * and clear the timer IRQ | ||
| 106 | */ | ||
| 107 | void SkHwtStop( | ||
| 108 | SK_AC *pAC, /* Adapters context */ | ||
| 109 | SK_IOC Ioc) /* IoContext */ | ||
| 110 | { | ||
| 111 | SK_OUT16(Ioc, B2_TI_CTRL, TIM_STOP); | ||
| 112 | |||
| 113 | SK_OUT16(Ioc, B2_TI_CTRL, TIM_CLR_IRQ); | ||
| 114 | |||
| 115 | pAC->Hwt.TActive = SK_FALSE; | ||
| 116 | } | ||
| 117 | |||
| 118 | |||
| 119 | /* | ||
| 120 | * Stop hardware timer and read time elapsed since last start. | ||
| 121 | * | ||
| 122 | * returns | ||
| 123 | * The elapsed time since last start in units of 16us. | ||
| 124 | * | ||
| 125 | */ | ||
| 126 | SK_U32 SkHwtRead( | ||
| 127 | SK_AC *pAC, /* Adapters context */ | ||
| 128 | SK_IOC Ioc) /* IoContext */ | ||
| 129 | { | ||
| 130 | SK_U32 TRead; | ||
| 131 | SK_U32 IStatus; | ||
| 132 | |||
| 133 | if (pAC->Hwt.TActive) { | ||
| 134 | |||
| 135 | SkHwtStop(pAC, Ioc); | ||
| 136 | |||
| 137 | SK_IN32(Ioc, B2_TI_VAL, &TRead); | ||
| 138 | TRead /= SK_HWT_FAC; | ||
| 139 | |||
| 140 | SK_IN32(Ioc, B0_ISRC, &IStatus); | ||
| 141 | |||
| 142 | /* Check if timer expired (or wraped around) */ | ||
| 143 | if ((TRead > pAC->Hwt.TStart) || (IStatus & IS_TIMINT)) { | ||
| 144 | |||
| 145 | SkHwtStop(pAC, Ioc); | ||
| 146 | |||
| 147 | pAC->Hwt.TStop = pAC->Hwt.TStart; | ||
| 148 | } | ||
| 149 | else { | ||
| 150 | |||
| 151 | pAC->Hwt.TStop = pAC->Hwt.TStart - TRead; | ||
| 152 | } | ||
| 153 | } | ||
| 154 | return(pAC->Hwt.TStop); | ||
| 155 | } | ||
| 156 | |||
| 157 | /* | ||
| 158 | * interrupt source= timer | ||
| 159 | */ | ||
| 160 | void SkHwtIsr( | ||
| 161 | SK_AC *pAC, /* Adapters context */ | ||
| 162 | SK_IOC Ioc) /* IoContext */ | ||
| 163 | { | ||
| 164 | SkHwtStop(pAC, Ioc); | ||
| 165 | |||
| 166 | pAC->Hwt.TStop = pAC->Hwt.TStart; | ||
| 167 | |||
| 168 | SkTimerDone(pAC, Ioc); | ||
| 169 | } | ||
| 170 | |||
| 171 | /* End of file */ | ||