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review.evervolv.com / android_kernel_oneplus_msm8996 / b51d63c6d3078f47c26bcf7584b5c3ebea2defd0 / . / drivers / net / sk98lin / skqueue.c
blob: 0275b4f71d9b97e530f8d920d8b1a8aa79397ebb [file] [log] [blame]
Stephen Hemminger5ad887f2007-09-15 19:35:14 -0400[diff] [blame]1/******************************************************************************
2 *
3 * Name: skqueue.c
4 * Project: Gigabit Ethernet Adapters, Event Scheduler Module
5 * Version: $Revision: 1.20 $
6 * Date: $Date: 2003/09/16 13:44:00 $
7 * Purpose: Management of an event queue.
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/*
27 * Event queue and dispatcher
28 */
29#if (defined(DEBUG) || ((!defined(LINT)) && (!defined(SK_SLIM))))
30static const char SysKonnectFileId[] =
31 "@(#) $Id: skqueue.c,v 1.20 2003/09/16 13:44:00 rschmidt Exp $ (C) Marvell.";
32#endif
33
34#include "h/skdrv1st.h" /* Driver Specific Definitions */
35#include "h/skqueue.h" /* Queue Definitions */
36#include "h/skdrv2nd.h" /* Adapter Control- and Driver specific Def. */
37
38#ifdef __C2MAN__
39/*
40 Event queue management.
41
42 General Description:
43
44 */
45intro()
46{}
47#endif
48
49#define PRINTF(a,b,c)
50
51/*
52 * init event queue management
53 *
54 * Must be called during init level 0.
55 */
56void SkEventInit(
57SK_AC *pAC, /* Adapter context */
58SK_IOC Ioc, /* IO context */
59int Level) /* Init level */
60{
61 switch (Level) {
62 case SK_INIT_DATA:
63 pAC->Event.EvPut = pAC->Event.EvGet = pAC->Event.EvQueue;
64 break;
65 default:
66 break;
67 }
68}
69
70/*
71 * add event to queue
72 */
73void SkEventQueue(
74SK_AC *pAC, /* Adapters context */
75SK_U32 Class, /* Event Class */
76SK_U32 Event, /* Event to be queued */
77SK_EVPARA Para) /* Event parameter */
78{
79 pAC->Event.EvPut->Class = Class;
80 pAC->Event.EvPut->Event = Event;
81 pAC->Event.EvPut->Para = Para;
82
83 if (++pAC->Event.EvPut == &pAC->Event.EvQueue[SK_MAX_EVENT])
84 pAC->Event.EvPut = pAC->Event.EvQueue;
85
86 if (pAC->Event.EvPut == pAC->Event.EvGet) {
87 SK_ERR_LOG(pAC, SK_ERRCL_NORES, SKERR_Q_E001, SKERR_Q_E001MSG);
88 }
89}
90
91/*
92 * event dispatcher
93 * while event queue is not empty
94 * get event from queue
95 * send command to state machine
96 * end
97 * return error reported by individual Event function
98 * 0 if no error occured.
99 */
100int SkEventDispatcher(
101SK_AC *pAC, /* Adapters Context */
102SK_IOC Ioc) /* Io context */
103{
104 SK_EVENTELEM *pEv; /* pointer into queue */
105 SK_U32 Class;
106 int Rtv;
107
108 pEv = pAC->Event.EvGet;
109
110 PRINTF("dispatch get %x put %x\n", pEv, pAC->Event.ev_put);
111
112 while (pEv != pAC->Event.EvPut) {
113 PRINTF("dispatch Class %d Event %d\n", pEv->Class, pEv->Event);
114
115 switch (Class = pEv->Class) {
116#ifndef SK_USE_LAC_EV
117#ifndef SK_SLIM
118 case SKGE_RLMT: /* RLMT Event */
119 Rtv = SkRlmtEvent(pAC, Ioc, pEv->Event, pEv->Para);
120 break;
121 case SKGE_I2C: /* I2C Event */
122 Rtv = SkI2cEvent(pAC, Ioc, pEv->Event, pEv->Para);
123 break;
124 case SKGE_PNMI: /* PNMI Event */
125 Rtv = SkPnmiEvent(pAC, Ioc, pEv->Event, pEv->Para);
126 break;
127#endif /* not SK_SLIM */
128#endif /* not SK_USE_LAC_EV */
129 case SKGE_DRV: /* Driver Event */
130 Rtv = SkDrvEvent(pAC, Ioc, pEv->Event, pEv->Para);
131 break;
132#ifndef SK_USE_SW_TIMER
133 case SKGE_HWAC:
134 Rtv = SkGeSirqEvent(pAC, Ioc, pEv->Event, pEv->Para);
135 break;
136#else /* !SK_USE_SW_TIMER */
137 case SKGE_SWT :
138 Rtv = SkSwtEvent(pAC, Ioc, pEv->Event, pEv->Para);
139 break;
140#endif /* !SK_USE_SW_TIMER */
141#ifdef SK_USE_LAC_EV
142 case SKGE_LACP :
143 Rtv = SkLacpEvent(pAC, Ioc, pEv->Event, pEv->Para);
144 break;
145 case SKGE_RSF :
146 Rtv = SkRsfEvent(pAC, Ioc, pEv->Event, pEv->Para);
147 break;
148 case SKGE_MARKER :
149 Rtv = SkMarkerEvent(pAC, Ioc, pEv->Event, pEv->Para);
150 break;
151 case SKGE_FD :
152 Rtv = SkFdEvent(pAC, Ioc, pEv->Event, pEv->Para);
153 break;
154#endif /* SK_USE_LAC_EV */
155#ifdef SK_USE_CSUM
156 case SKGE_CSUM :
157 Rtv = SkCsEvent(pAC, Ioc, pEv->Event, pEv->Para);
158 break;
159#endif /* SK_USE_CSUM */
160 default :
161 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_Q_E002, SKERR_Q_E002MSG);
162 Rtv = 0;
163 }
164
165 if (Rtv != 0) {
166 return(Rtv);
167 }
168
169 if (++pEv == &pAC->Event.EvQueue[SK_MAX_EVENT])
170 pEv = pAC->Event.EvQueue;
171
172 /* Renew get: it is used in queue_events to detect overruns */
173 pAC->Event.EvGet = pEv;
174 }
175
176 return(0);
177}
178
179/* End of file */