]>
Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /****************************************************************************** |
3 | * | |
4 | * (C)Copyright 1998,1999 SysKonnect, | |
5 | * a business unit of Schneider & Koch & Co. Datensysteme GmbH. | |
6 | * | |
7 | * See the file "skfddi.c" for further information. | |
8 | * | |
1da177e4 LT |
9 | * The information in this file is provided "AS IS" without warranty. |
10 | * | |
11 | ******************************************************************************/ | |
12 | ||
13 | /* | |
14 | SMT Event Queue Management | |
15 | */ | |
16 | ||
17 | #include "h/types.h" | |
18 | #include "h/fddi.h" | |
19 | #include "h/smc.h" | |
20 | ||
21 | #ifndef lint | |
22 | static const char ID_sccs[] = "@(#)queue.c 2.9 97/08/04 (C) SK " ; | |
23 | #endif | |
24 | ||
25 | #define PRINTF(a,b,c) | |
26 | ||
27 | /* | |
28 | * init event queue management | |
29 | */ | |
30 | void ev_init(struct s_smc *smc) | |
31 | { | |
32 | smc->q.ev_put = smc->q.ev_get = smc->q.ev_queue ; | |
33 | } | |
34 | ||
35 | /* | |
36 | * add event to queue | |
37 | */ | |
38 | void queue_event(struct s_smc *smc, int class, int event) | |
39 | { | |
40 | PRINTF("queue class %d event %d\n",class,event) ; | |
41 | smc->q.ev_put->class = class ; | |
42 | smc->q.ev_put->event = event ; | |
43 | if (++smc->q.ev_put == &smc->q.ev_queue[MAX_EVENT]) | |
44 | smc->q.ev_put = smc->q.ev_queue ; | |
45 | ||
46 | if (smc->q.ev_put == smc->q.ev_get) { | |
47 | SMT_ERR_LOG(smc,SMT_E0137, SMT_E0137_MSG) ; | |
48 | } | |
49 | } | |
50 | ||
51 | /* | |
52 | * timer_event is called from HW timer package. | |
53 | */ | |
54 | void timer_event(struct s_smc *smc, u_long token) | |
55 | { | |
56 | PRINTF("timer event class %d token %d\n", | |
57 | EV_T_CLASS(token), | |
58 | EV_T_EVENT(token)) ; | |
59 | queue_event(smc,EV_T_CLASS(token),EV_T_EVENT(token)); | |
60 | } | |
61 | ||
62 | /* | |
63 | * event dispatcher | |
64 | * while event queue is not empty | |
65 | * get event from queue | |
66 | * send command to state machine | |
67 | * end | |
68 | */ | |
69 | void ev_dispatcher(struct s_smc *smc) | |
70 | { | |
71 | struct event_queue *ev ; /* pointer into queue */ | |
72 | int class ; | |
73 | ||
74 | ev = smc->q.ev_get ; | |
75 | PRINTF("dispatch get %x put %x\n",ev,smc->q.ev_put) ; | |
76 | while (ev != smc->q.ev_put) { | |
77 | PRINTF("dispatch class %d event %d\n",ev->class,ev->event) ; | |
78 | switch(class = ev->class) { | |
79 | case EVENT_ECM : /* Entity Corordination Man. */ | |
80 | ecm(smc,(int)ev->event) ; | |
81 | break ; | |
82 | case EVENT_CFM : /* Configuration Man. */ | |
83 | cfm(smc,(int)ev->event) ; | |
84 | break ; | |
85 | case EVENT_RMT : /* Ring Man. */ | |
86 | rmt(smc,(int)ev->event) ; | |
87 | break ; | |
88 | case EVENT_SMT : | |
89 | smt_event(smc,(int)ev->event) ; | |
90 | break ; | |
91 | #ifdef CONCENTRATOR | |
92 | case 99 : | |
93 | timer_test_event(smc,(int)ev->event) ; | |
94 | break ; | |
95 | #endif | |
96 | case EVENT_PCMA : /* PHY A */ | |
97 | case EVENT_PCMB : /* PHY B */ | |
98 | default : | |
99 | if (class >= EVENT_PCMA && | |
100 | class < EVENT_PCMA + NUMPHYS) { | |
101 | pcm(smc,class - EVENT_PCMA,(int)ev->event) ; | |
102 | break ; | |
103 | } | |
104 | SMT_PANIC(smc,SMT_E0121, SMT_E0121_MSG) ; | |
105 | return ; | |
106 | } | |
107 | ||
108 | if (++ev == &smc->q.ev_queue[MAX_EVENT]) | |
109 | ev = smc->q.ev_queue ; | |
110 | ||
111 | /* Renew get: it is used in queue_events to detect overruns */ | |
112 | smc->q.ev_get = ev; | |
113 | } | |
114 | } | |
115 | ||
116 | /* | |
117 | * smt_online connects to or disconnects from the ring | |
118 | * MUST be called to initiate connection establishment | |
119 | * | |
120 | * on 0 disconnect | |
121 | * on 1 connect | |
122 | */ | |
123 | u_short smt_online(struct s_smc *smc, int on) | |
124 | { | |
125 | queue_event(smc,EVENT_ECM,on ? EC_CONNECT : EC_DISCONNECT) ; | |
126 | ev_dispatcher(smc) ; | |
807540ba | 127 | return smc->mib.fddiSMTCF_State; |
1da177e4 LT |
128 | } |
129 | ||
130 | /* | |
131 | * set SMT flag to value | |
132 | * flag flag name | |
133 | * value flag value | |
134 | * dump current flag setting | |
135 | */ | |
136 | #ifdef CONCENTRATOR | |
137 | void do_smt_flag(struct s_smc *smc, char *flag, int value) | |
138 | { | |
139 | #ifdef DEBUG | |
140 | struct smt_debug *deb; | |
141 | ||
142 | SK_UNUSED(smc) ; | |
143 | ||
144 | #ifdef DEBUG_BRD | |
145 | deb = &smc->debug; | |
146 | #else | |
147 | deb = &debug; | |
148 | #endif | |
149 | if (!strcmp(flag,"smt")) | |
150 | deb->d_smt = value ; | |
151 | else if (!strcmp(flag,"smtf")) | |
152 | deb->d_smtf = value ; | |
153 | else if (!strcmp(flag,"pcm")) | |
154 | deb->d_pcm = value ; | |
155 | else if (!strcmp(flag,"rmt")) | |
156 | deb->d_rmt = value ; | |
157 | else if (!strcmp(flag,"cfm")) | |
158 | deb->d_cfm = value ; | |
159 | else if (!strcmp(flag,"ecm")) | |
160 | deb->d_ecm = value ; | |
161 | printf("smt %d\n",deb->d_smt) ; | |
162 | printf("smtf %d\n",deb->d_smtf) ; | |
163 | printf("pcm %d\n",deb->d_pcm) ; | |
164 | printf("rmt %d\n",deb->d_rmt) ; | |
165 | printf("cfm %d\n",deb->d_cfm) ; | |
166 | printf("ecm %d\n",deb->d_ecm) ; | |
167 | #endif /* DEBUG */ | |
168 | } | |
169 | #endif |