source: asp_ewarm/asp-1.7.0/kernel/alarm.c@ 61

Last change on this file since 61 was 61, checked in by ertl-honda, 11 years ago

ASP for EWARM のコミット.

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1/*
2 * TOPPERS/ASP Kernel
3 * Toyohashi Open Platform for Embedded Real-Time Systems/
4 * Advanced Standard Profile Kernel
5 *
6 * Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
7 * Toyohashi Univ. of Technology, JAPAN
8 * Copyright (C) 2005-2007 by Embedded and Real-Time Systems Laboratory
9 * Graduate School of Information Science, Nagoya Univ., JAPAN
10 *
11 * ã‹L’˜ìŒ ŽÒ‚́CˆÈ‰º‚Ì(1)`(4)‚ÌðŒ‚ð–ž‚½‚·ê‡‚ÉŒÀ‚èC–{ƒ\ƒtƒgƒEƒF
12 * ƒAi–{ƒ\ƒtƒgƒEƒFƒA‚ð‰ü•Ï‚µ‚½‚à‚Ì‚ðŠÜ‚ށDˆÈ‰º“¯‚¶j‚ðŽg—pE•¡»E‰ü
13 * •ÏEÄ”z•ziˆÈ‰ºC—˜—p‚ƌĂԁj‚·‚邱‚Ƃ𖳏ž‚Å‹–‘ø‚·‚éD
14 * (1) –{ƒ\ƒtƒgƒEƒFƒA‚ðƒ\[ƒXƒR[ƒh‚ÌŒ`‚Å—˜—p‚·‚éê‡‚ɂ́Cã‹L‚Ì’˜ì
15 * Œ •\Ž¦C‚±‚Ì—˜—pðŒ‚¨‚æ‚щº‹L‚Ì–³•ÛØ‹K’肪C‚»‚Ì‚Ü‚Ü‚ÌŒ`‚Ń\[
16 * ƒXƒR[ƒh’†‚ÉŠÜ‚Ü‚ê‚Ä‚¢‚邱‚ƁD
17 * (2) –{ƒ\ƒtƒgƒEƒFƒA‚ðCƒ‰ƒCƒuƒ‰ƒŠŒ`Ž®‚ȂǁC‘¼‚̃\ƒtƒgƒEƒFƒAŠJ”­‚ÉŽg
18 * —p‚Å‚«‚éŒ`‚ōĔz•z‚·‚éê‡‚ɂ́CÄ”z•z‚É”º‚¤ƒhƒLƒ…
19ƒƒ“ƒgi—˜—p
20 * ŽÒƒ}ƒjƒ…
21ƒAƒ‹‚Ȃǁj‚ɁCã‹L‚Ì’˜ìŒ •\Ž¦C‚±‚Ì—˜—pðŒ‚¨‚æ‚щº‹L
22 * ‚Ì–³•ÛØ‹K’è‚ðŒfÚ‚·‚邱‚ƁD
23 * (3) –{ƒ\ƒtƒgƒEƒFƒA‚ðC‹@Ší‚É‘g‚ݍž‚ނȂǁC‘¼‚̃\ƒtƒgƒEƒFƒAŠJ”­‚ÉŽg
24 * —p‚Å‚«‚È‚¢Œ`‚ōĔz•z‚·‚éê‡‚ɂ́CŽŸ‚Ì‚¢‚¸‚ê‚©‚ÌðŒ‚ð–ž‚½‚·‚±
25 * ‚ƁD
26 * (a) Ä”z•z‚É”º‚¤ƒhƒLƒ…
27ƒƒ“ƒgi—˜—pŽÒƒ}ƒjƒ…
28ƒAƒ‹‚Ȃǁj‚ɁCã‹L‚Ì’˜
29 * ìŒ •\Ž¦C‚±‚Ì—˜—pðŒ‚¨‚æ‚щº‹L‚Ì–³•ÛØ‹K’è‚ðŒfÚ‚·‚邱‚ƁD
30 * (b) Ä”z•z‚ÌŒ`‘Ô‚ðC•Ê‚É’è‚ß‚é•û–@‚É‚æ‚Á‚āCTOPPERSƒvƒƒWƒFƒNƒg‚É
31 * •ñ‚·‚邱‚ƁD
32 * (4) –{ƒ\ƒtƒgƒEƒFƒA‚Ì—˜—p‚É‚æ‚è’¼Ú“I‚Ü‚½‚͊ԐړI‚ɐ¶‚¶‚é‚¢‚©‚Ȃ鑹
33 * ŠQ‚©‚ç‚àCã‹L’˜ìŒ ŽÒ‚¨‚æ‚ÑTOPPERSƒvƒƒWƒFƒNƒg‚ð–Ɛӂ·‚邱‚ƁD
34 * ‚Ü‚½C–{ƒ\ƒtƒgƒEƒFƒA‚̃†[ƒU‚Ü‚½‚̓Gƒ“ƒhƒ†[ƒU‚©‚ç‚Ì‚¢‚©‚Ȃ闝
35 * —R‚ÉŠî‚­¿‹‚©‚ç‚àCã‹L’˜ìŒ ŽÒ‚¨‚æ‚ÑTOPPERSƒvƒƒWƒFƒNƒg‚ð
36 * –Ɛӂ·‚邱‚ƁD
37 *
38 * –{ƒ\ƒtƒgƒEƒFƒA‚́C–³•ÛØ‚Å’ñ‹Ÿ‚³‚ê‚Ä‚¢‚é‚à‚Ì‚Å‚ ‚éDã‹L’˜ìŒ ŽÒ‚¨
39 * ‚æ‚ÑTOPPERSƒvƒƒWƒFƒNƒg‚́C–{ƒ\ƒtƒgƒEƒFƒA‚ÉŠÖ‚µ‚āC“Á’è‚ÌŽg—p–Ú“I
40 * ‚ɑ΂·‚é“K‡«‚àŠÜ‚߂āC‚¢‚©‚È‚é•ÛØ‚às‚í‚È‚¢D‚Ü‚½C–{ƒ\ƒtƒgƒEƒF
41 * ƒA‚Ì—˜—p‚É‚æ‚è’¼Ú“I‚Ü‚½‚͊ԐړI‚ɐ¶‚¶‚½‚¢‚©‚Ȃ鑹ŠQ‚ÉŠÖ‚µ‚Ä‚àC‚»
42 * ‚̐ӔC‚𕉂í‚È‚¢D
43 *
44 * @(#) $Id: alarm.c 748 2008-03-07 17:18:06Z hiro $
45 */
46
47/*
48 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‹@”\
49 */
50
51#include "kernel_impl.h"
52#include "check.h"
53#include "alarm.h"
54
55/*
56 * ƒgƒŒ[ƒXƒƒOƒ}ƒNƒ‚̃fƒtƒHƒ‹ƒg’è‹`
57 */
58#ifndef LOG_ALM_ENTER
59#define LOG_ALM_ENTER(p_almcb)
60#endif /* LOG_ALM_ENTER */
61
62#ifndef LOG_ALM_LEAVE
63#define LOG_ALM_LEAVE(p_almcb)
64#endif /* LOG_ALM_LEAVE */
65
66#ifndef LOG_STA_ALM_ENTER
67#define LOG_STA_ALM_ENTER(almid, almtim)
68#endif /* LOG_STA_ALM_ENTER */
69
70#ifndef LOG_STA_ALM_LEAVE
71#define LOG_STA_ALM_LEAVE(ercd)
72#endif /* LOG_STA_ALM_LEAVE */
73
74#ifndef LOG_ISTA_ALM_ENTER
75#define LOG_ISTA_ALM_ENTER(almid, almtim)
76#endif /* LOG_ISTA_ALM_ENTER */
77
78#ifndef LOG_ISTA_ALM_LEAVE
79#define LOG_ISTA_ALM_LEAVE(ercd)
80#endif /* LOG_ISTA_ALM_LEAVE */
81
82#ifndef LOG_STP_ALM_ENTER
83#define LOG_STP_ALM_ENTER(almid)
84#endif /* LOG_STP_ALM_ENTER */
85
86#ifndef LOG_STP_ALM_LEAVE
87#define LOG_STP_ALM_LEAVE(ercd)
88#endif /* LOG_STP_ALM_LEAVE */
89
90#ifndef LOG_ISTP_ALM_ENTER
91#define LOG_ISTP_ALM_ENTER(almid)
92#endif /* LOG_ISTP_ALM_ENTER */
93
94#ifndef LOG_ISTP_ALM_LEAVE
95#define LOG_ISTP_ALM_LEAVE(ercd)
96#endif /* LOG_ISTP_ALM_LEAVE */
97
98#ifndef LOG_REF_ALM_ENTER
99#define LOG_REF_ALM_ENTER(almid, pk_ralm)
100#endif /* LOG_REF_ALM_ENTER */
101
102#ifndef LOG_REF_ALM_LEAVE
103#define LOG_REF_ALM_LEAVE(ercd, pk_ralm)
104#endif /* LOG_REF_ALM_LEAVE */
105
106/*
107 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‚̐”
108 */
109#define tnum_alm ((uint_t)(tmax_almid - TMIN_ALMID + 1))
110
111/*
112 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰ID‚©‚çƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰ŠÇ—ƒuƒƒbƒN‚ðŽæ‚èo‚·‚½‚߂̃}ƒNƒ
113 */
114#define INDEX_ALM(almid) ((uint_t)((almid) - TMIN_ALMID))
115#define get_almcb(almid) (&(almcb_table[INDEX_ALM(almid)]))
116
117/*
118 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‹@”\‚̏‰Šú‰»
119 */
120#ifdef TOPPERS_almini
121
122void
123initialize_alarm(void)
124{
125 uint_t i;
126 ALMCB *p_almcb;
127
128 for (p_almcb = almcb_table, i = 0; i < tnum_alm; p_almcb++, i++) {
129 p_almcb->p_alminib = &(alminib_table[i]);
130 p_almcb->almsta = false;
131 }
132}
133
134#endif /* TOPPERS_almini */
135
136/*
137 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‚Ì“®ìŠJŽn
138 */
139#ifdef TOPPERS_sta_alm
140
141ER
142sta_alm(ID almid, RELTIM almtim)
143{
144 ALMCB *p_almcb;
145 ER ercd;
146
147 LOG_STA_ALM_ENTER(almid, almtim);
148 CHECK_TSKCTX_UNL();
149 CHECK_ALMID(almid);
150 CHECK_PAR(almtim <= TMAX_RELTIM);
151 p_almcb = get_almcb(almid);
152
153 t_lock_cpu();
154 if (p_almcb->almsta) {
155 tmevtb_dequeue(&(p_almcb->tmevtb));
156 }
157 else {
158 p_almcb->almsta = true;
159 }
160 tmevtb_enqueue(&(p_almcb->tmevtb), almtim,
161 (CBACK) call_almhdr, (void *) p_almcb);
162 ercd = E_OK;
163 t_unlock_cpu();
164
165 error_exit:
166 LOG_STA_ALM_LEAVE(ercd);
167 return(ercd);
168}
169
170#endif /* TOPPERS_sta_alm */
171
172/*
173 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‚Ì“®ìŠJŽni”ñƒ^ƒXƒNƒRƒ“ƒeƒLƒXƒg—pj
174 */
175#ifdef TOPPERS_ista_alm
176
177ER
178ista_alm(ID almid, RELTIM almtim)
179{
180 ALMCB *p_almcb;
181 ER ercd;
182
183 LOG_ISTA_ALM_ENTER(almid, almtim);
184 CHECK_INTCTX_UNL();
185 CHECK_ALMID(almid);
186 CHECK_PAR(almtim <= TMAX_RELTIM);
187 p_almcb = get_almcb(almid);
188
189 i_lock_cpu();
190 if (p_almcb->almsta) {
191 tmevtb_dequeue(&(p_almcb->tmevtb));
192 }
193 else {
194 p_almcb->almsta = true;
195 }
196 tmevtb_enqueue(&(p_almcb->tmevtb), almtim,
197 (CBACK) call_almhdr, (void *) p_almcb);
198 ercd = E_OK;
199 i_unlock_cpu();
200
201 error_exit:
202 LOG_ISTA_ALM_LEAVE(ercd);
203 return(ercd);
204}
205
206#endif /* TOPPERS_ista_alm */
207
208/*
209 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‚Ì“®ì’âŽ~
210 */
211#ifdef TOPPERS_stp_alm
212
213ER
214stp_alm(ID almid)
215{
216 ALMCB *p_almcb;
217 ER ercd;
218
219 LOG_STP_ALM_ENTER(almid);
220 CHECK_TSKCTX_UNL();
221 CHECK_ALMID(almid);
222 p_almcb = get_almcb(almid);
223
224 t_lock_cpu();
225 if (p_almcb->almsta) {
226 p_almcb->almsta = false;
227 tmevtb_dequeue(&(p_almcb->tmevtb));
228 }
229 ercd = E_OK;
230 t_unlock_cpu();
231
232 error_exit:
233 LOG_STP_ALM_LEAVE(ercd);
234 return(ercd);
235}
236
237#endif /* TOPPERS_stp_alm */
238
239/*
240 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‚Ì“®ì’âŽ~i”ñƒ^ƒXƒNƒRƒ“ƒeƒLƒXƒg—pj
241 */
242#ifdef TOPPERS_istp_alm
243
244ER
245istp_alm(ID almid)
246{
247 ALMCB *p_almcb;
248 ER ercd;
249
250 LOG_ISTP_ALM_ENTER(almid);
251 CHECK_INTCTX_UNL();
252 CHECK_ALMID(almid);
253 p_almcb = get_almcb(almid);
254
255 i_lock_cpu();
256 if (p_almcb->almsta) {
257 p_almcb->almsta = false;
258 tmevtb_dequeue(&(p_almcb->tmevtb));
259 }
260 ercd = E_OK;
261 i_unlock_cpu();
262
263 error_exit:
264 LOG_ISTP_ALM_LEAVE(ercd);
265 return(ercd);
266}
267
268#endif /* TOPPERS_istp_alm */
269
270/*
271 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‚̏ó‘ÔŽQÆ
272 */
273#ifdef TOPPERS_ref_alm
274
275ER
276ref_alm(ID almid, T_RALM *pk_ralm)
277{
278 ALMCB *p_almcb;
279 ER ercd;
280
281 LOG_REF_ALM_ENTER(almid, pk_ralm);
282 CHECK_TSKCTX_UNL();
283 CHECK_ALMID(almid);
284 p_almcb = get_almcb(almid);
285
286 t_lock_cpu();
287 if (p_almcb->almsta) {
288 pk_ralm->almstat = TALM_STA;
289 pk_ralm->lefttim = tmevt_lefttim(&(p_almcb->tmevtb));
290 }
291 else {
292 pk_ralm->almstat = TALM_STP;
293 }
294 ercd = E_OK;
295 t_unlock_cpu();
296
297 error_exit:
298 LOG_REF_ALM_LEAVE(ercd, pk_ralm);
299 return(ercd);
300}
301
302#endif /* TOPPERS_ref_alm */
303
304/*
305 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‹N“®ƒ‹[ƒ`ƒ“
306 */
307#ifdef TOPPERS_almcal
308
309void
310call_almhdr(ALMCB *p_almcb)
311{
312 PRI saved_ipm;
313
314 /*
315 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‚ð’âŽ~ó‘Ô‚É‚·‚éD
316 */
317 p_almcb->almsta = false;
318
319 /*
320 * ƒAƒ‰[ƒ€ƒnƒ“ƒhƒ‰‚ðCCPUƒƒbƒN‰ðœó‘ԂŌĂяo‚·D
321 */
322 saved_ipm = i_get_ipm();
323 i_unlock_cpu();
324
325 LOG_ALM_ENTER(p_almcb);
326 (*((ALMHDR)(p_almcb->p_alminib->almhdr)))(p_almcb->p_alminib->exinf);
327 LOG_ALM_LEAVE(p_almcb);
328
329 if (!i_sense_lock()) {
330 i_lock_cpu();
331 }
332 i_set_ipm(saved_ipm);
333}
334
335#endif /* TOPPERS_almcal */
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