OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [doc/] [html/] [ref/] [compat-uitron-interrupt-management-functions.html] - Blame information for rev 582

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 28 unneback 
<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
2 
<!-- This material may be distributed only subject to the terms      -->
3 
<!-- and conditions set forth in the Open Publication License, v1.0  -->
4 
<!-- or later (the latest version is presently available at          -->
5 
<!-- http://www.opencontent.org/openpub/).                           -->
6 
<!-- Distribution of the work or derivative of the work in any       -->
7 
<!-- standard (paper) book form is prohibited unless prior           -->
8 
<!-- permission is obtained from the copyright holder.               -->
9 
<HTML
10 
><HEAD
11 
><TITLE
12 
>Interrupt management functions</TITLE
13 
><meta name="MSSmartTagsPreventParsing" content="TRUE">
14 
<META
15 
NAME="GENERATOR"
16 
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
17 
"><LINK
18 
REL="HOME"
19 
TITLE="eCos Reference Manual"
20 
HREF="ecos-ref.html"><LINK
21 
REL="UP"
22 
TITLE="µITRON API"
23 
HREF="compat-uitron-microitron-api.html"><LINK
24 
REL="PREVIOUS"
25 
TITLE="Extended Synchronization and Communication Functions"
26 
HREF="compat-uitron-extended-sync-comm-functions.html"><LINK
27 
REL="NEXT"
28 
TITLE="   Memory pool Management Functions"
29 
HREF="compat-uitron-memory-pool-mgmt-functions.html"></HEAD
30 
><BODY
31 
CLASS="SECT1"
32 
BGCOLOR="#FFFFFF"
33 
TEXT="#000000"
34 
LINK="#0000FF"
35 
VLINK="#840084"
36 
ALINK="#0000FF"
37 
><DIV
38 
CLASS="NAVHEADER"
39 
><TABLE
40 
SUMMARY="Header navigation table"
41 
WIDTH="100%"
42 
BORDER="0"
43 
CELLPADDING="0"
44 
CELLSPACING="0"
45 
><TR
46 
><TH
47 
COLSPAN="3"
48 
ALIGN="center"
49 
>eCos Reference Manual</TH
50 
></TR
51 
><TR
52 
><TD
53 
WIDTH="10%"
54 
ALIGN="left"
55 
VALIGN="bottom"
56 
><A
57 
HREF="compat-uitron-extended-sync-comm-functions.html"
58 
ACCESSKEY="P"
59 
>Prev</A
60 
></TD
61 
><TD
62 
WIDTH="80%"
63 
ALIGN="center"
64 
VALIGN="bottom"
65 
>Chapter 32. &micro;ITRON API</TD
66 
><TD
67 
WIDTH="10%"
68 
ALIGN="right"
69 
VALIGN="bottom"
70 
><A
71 
HREF="compat-uitron-memory-pool-mgmt-functions.html"
72 
ACCESSKEY="N"
73 
>Next</A
74 
></TD
75 
></TR
76 
></TABLE
77 
><HR
78 
ALIGN="LEFT"
79 
WIDTH="100%"></DIV
80 
><DIV
81 
CLASS="SECT1"
82 
><H1
83 
CLASS="SECT1"
84 
><A
85 
NAME="COMPAT-UITRON-INTERRUPT-MANAGEMENT-FUNCTIONS">Interrupt management functions</H1
86 
><P
87 
>These functions are fully supported in this release:</P
88 
><TABLE
89 
BORDER="5"
90 
BGCOLOR="#E0E0F0"
91 
WIDTH="70%"
92 
><TR
93 
><TD
94 
><PRE
95 
CLASS="PROGRAMLISTING"
96 
>void   <TT
97 
CLASS="FUNCTION"
98 
> ret_int</TT
99 
>( void )</PRE
100 
></TD
101 
></TR
102 
></TABLE
103 
><TABLE
104 
BORDER="5"
105 
BGCOLOR="#E0E0F0"
106 
WIDTH="70%"
107 
><TR
108 
><TD
109 
><PRE
110 
CLASS="PROGRAMLISTING"
111 
>ER <TT
112 
CLASS="FUNCTION"
113 
>loc_cpu</TT
114 
>( void )</PRE
115 
></TD
116 
></TR
117 
></TABLE
118 
><TABLE
119 
BORDER="5"
120 
BGCOLOR="#E0E0F0"
121 
WIDTH="70%"
122 
><TR
123 
><TD
124 
><PRE
125 
CLASS="PROGRAMLISTING"
126 
>ER <TT
127 
CLASS="FUNCTION"
128 
>unl_cpu</TT
129 
>( void )</PRE
130 
></TD
131 
></TR
132 
></TABLE
133 
><TABLE
134 
BORDER="5"
135 
BGCOLOR="#E0E0F0"
136 
WIDTH="70%"
137 
><TR
138 
><TD
139 
><PRE
140 
CLASS="PROGRAMLISTING"
141 
>ER <TT
142 
CLASS="FUNCTION"
143 
>dis_int</TT
144 
>(
145 
    UINT <SPAN
146 
CLASS="emphasis"
147 
><I
148 
CLASS="EMPHASIS"
149 
>eintno</I
150 
></SPAN
151 
> )</PRE
152 
></TD
153 
></TR
154 
></TABLE
155 
><TABLE
156 
BORDER="5"
157 
BGCOLOR="#E0E0F0"
158 
WIDTH="70%"
159 
><TR
160 
><TD
161 
><PRE
162 
CLASS="PROGRAMLISTING"
163 
>ER <TT
164 
CLASS="FUNCTION"
165 
>ena_int</TT
166 
>(
167 
    UINT <SPAN
168 
CLASS="emphasis"
169 
><I
170 
CLASS="EMPHASIS"
171 
>eintno</I
172 
></SPAN
173 
> )</PRE
174 
></TD
175 
></TR
176 
></TABLE
177 
><TABLE
178 
BORDER="5"
179 
BGCOLOR="#E0E0F0"
180 
WIDTH="70%"
181 
><TR
182 
><TD
183 
><PRE
184 
CLASS="PROGRAMLISTING"
185 
>void   <TT
186 
CLASS="FUNCTION"
187 
>ret_wup</TT
188 
>(
189 
    ID <SPAN
190 
CLASS="emphasis"
191 
><I
192 
CLASS="EMPHASIS"
193 
>tskid</I
194 
></SPAN
195 
> )</PRE
196 
></TD
197 
></TR
198 
></TABLE
199 
><TABLE
200 
BORDER="5"
201 
BGCOLOR="#E0E0F0"
202 
WIDTH="70%"
203 
><TR
204 
><TD
205 
><PRE
206 
CLASS="PROGRAMLISTING"
207 
>ER <TT
208 
CLASS="FUNCTION"
209 
>iwup_tsk</TT
210 
>(
211 
    ID <SPAN
212 
CLASS="emphasis"
213 
><I
214 
CLASS="EMPHASIS"
215 
>tskid</I
216 
></SPAN
217 
> )</PRE
218 
></TD
219 
></TR
220 
></TABLE
221 
><TABLE
222 
BORDER="5"
223 
BGCOLOR="#E0E0F0"
224 
WIDTH="70%"
225 
><TR
226 
><TD
227 
><PRE
228 
CLASS="PROGRAMLISTING"
229 
>ER <TT
230 
CLASS="FUNCTION"
231 
>isig_sem</TT
232 
>(
233 
    ID <SPAN
234 
CLASS="emphasis"
235 
><I
236 
CLASS="EMPHASIS"
237 
>semid</I
238 
></SPAN
239 
> )</PRE
240 
></TD
241 
></TR
242 
></TABLE
243 
><TABLE
244 
BORDER="5"
245 
BGCOLOR="#E0E0F0"
246 
WIDTH="70%"
247 
><TR
248 
><TD
249 
><PRE
250 
CLASS="PROGRAMLISTING"
251 
>ER <TT
252 
CLASS="FUNCTION"
253 
>iset_flg</TT
254 
>(
255 
    ID <SPAN
256 
CLASS="emphasis"
257 
><I
258 
CLASS="EMPHASIS"
259 
>flgid ,</I
260 
></SPAN
261 
>
262 
    UID<SPAN
263 
CLASS="emphasis"
264 
><I
265 
CLASS="EMPHASIS"
266 
> setptn</I
267 
></SPAN
268 
> )</PRE
269 
></TD
270 
></TR
271 
></TABLE
272 
><TABLE
273 
BORDER="5"
274 
BGCOLOR="#E0E0F0"
275 
WIDTH="70%"
276 
><TR
277 
><TD
278 
><PRE
279 
CLASS="PROGRAMLISTING"
280 
>ER <TT
281 
CLASS="FUNCTION"
282 
>isend_msg</TT
283 
>(
284 
    ID <SPAN
285 
CLASS="emphasis"
286 
><I
287 
CLASS="EMPHASIS"
288 
>mbxid ,</I
289 
></SPAN
290 
>
291 
    T_MSG<SPAN
292 
CLASS="emphasis"
293 
><I
294 
CLASS="EMPHASIS"
295 
> *pk_msg</I
296 
></SPAN
297 
> )</PRE
298 
></TD
299 
></TR
300 
></TABLE
301 
><P
302 
>Note that <TT
303 
CLASS="FUNCTION"
304 
>ret_int()</TT
305 
> and
306 
the <TT
307 
CLASS="FUNCTION"
308 
>ret_wup()</TT
309 
> are  implemented
310 
as macros, containing a &#8220;return&#8221; statement.</P
311 
><P
312 
>Also note that <TT
313 
CLASS="FUNCTION"
314 
>ret_wup()</TT
315 
> and
316 
the <TT
317 
CLASS="FUNCTION"
318 
>ixxx_yyy()</TT
319 
> style functions
320 
will only work when called from an ISR whose associated DSR is <TT
321 
CLASS="FUNCTION"
322 
>cyg_uitron_dsr()</TT
323 
>,
324 
as specified in include file <TT
325 
CLASS="FILENAME"
326 
>&lt;cyg/compat/uitron/uit_ifnc.h&gt;</TT
327 
>,
328 
which defines the <TT
329 
CLASS="FUNCTION"
330 
>ixxx_yyy()</TT
331 
> style
332 
functions also.</P
333 
><P
334 
>If you are writing interrupt handlers more in the
335 
<SPAN
336 
CLASS="emphasis"
337 
><I
338 
CLASS="EMPHASIS"
339 
>eCos</I
340 
></SPAN
341 
> style, with separate ISR and DSR routines both of
342 
your own devising, do not use these special functions from a DSR: use plain
343 
<TT
344 
CLASS="FUNCTION"
345 
>xxx_yyy()</TT
346 
> style functions (with no &#8216;i&#8217; prefix)
347 
instead, and do not call any &micro;ITRON functions from the ISR at
348 
all.</P
349 
><P
350 
>The following functions are not supported in this release: </P
351 
><TABLE
352 
BORDER="5"
353 
BGCOLOR="#E0E0F0"
354 
WIDTH="70%"
355 
><TR
356 
><TD
357 
><PRE
358 
CLASS="PROGRAMLISTING"
359 
>ER <TT
360 
CLASS="FUNCTION"
361 
>def_int</TT
362 
>(
363 
    UINT <SPAN
364 
CLASS="emphasis"
365 
><I
366 
CLASS="EMPHASIS"
367 
>dintno,</I
368 
></SPAN
369 
>
370 
  T_DINT *<SPAN
371 
CLASS="emphasis"
372 
><I
373 
CLASS="EMPHASIS"
374 
>pk_dint</I
375 
></SPAN
376 
> )</PRE
377 
></TD
378 
></TR
379 
></TABLE
380 
><TABLE
381 
BORDER="5"
382 
BGCOLOR="#E0E0F0"
383 
WIDTH="70%"
384 
><TR
385 
><TD
386 
><PRE
387 
CLASS="PROGRAMLISTING"
388 
>ER <TT
389 
CLASS="FUNCTION"
390 
>chg_iXX</TT
391 
>(
392 
    UINT <SPAN
393 
CLASS="emphasis"
394 
><I
395 
CLASS="EMPHASIS"
396 
>iXXXX</I
397 
></SPAN
398 
> )
399 
  </PRE
400 
></TD
401 
></TR
402 
></TABLE
403 
><TABLE
404 
BORDER="5"
405 
BGCOLOR="#E0E0F0"
406 
WIDTH="70%"
407 
><TR
408 
><TD
409 
><PRE
410 
CLASS="PROGRAMLISTING"
411 
>ER <TT
412 
CLASS="FUNCTION"
413 
>ref_iXX</TT
414 
>(
415 
    UINT * <SPAN
416 
CLASS="emphasis"
417 
><I
418 
CLASS="EMPHASIS"
419 
>p_iXXXX</I
420 
></SPAN
421 
> )</PRE
422 
></TD
423 
></TR
424 
></TABLE
425 
><P
426 
>These unsupported functions are all Level C (CPU dependent).
427 
Equivalent functionality is available via other <SPAN
428 
CLASS="emphasis"
429 
><I
430 
CLASS="EMPHASIS"
431 
>eCos</I
432 
></SPAN
433 
>-specific
434 
APIs. </P
435 
><DIV
436 
CLASS="SECT2"
437 
><H2
438 
CLASS="SECT2"
439 
><A
440 
NAME="AEN13831">Error checking</H2
441 
><P
442 
>The following conditions are only checked for, and only return
443 
errors if
444 
<TT
445 
CLASS="LITERAL"
446 
>CYGSEM_UITRON_BAD_PARAMS_RETURN_ERRORS</TT
447 
>
448 
is enabled:</P
449 
><P
450 
></P
451 
><UL
452 
><LI
453 
><P
454 
><TT
455 
CLASS="FUNCTION"
456 
>loc/unl_cpu()</TT
457 
>
458 
: these must only be called in a
459 
&micro;ITRON task context, else E_CTX.</P
460 
></LI
461 
><LI
462 
><P
463 
><TT
464 
CLASS="FUNCTION"
465 
>dis/ena_int()</TT
466 
>
467 
: the interrupt number must be in range as specified by the platform
468 
HAL in qustion, else E_PAR.</P
469 
></LI
470 
></UL
471 
></DIV
472 
></DIV
473 
><DIV
474 
CLASS="NAVFOOTER"
475 
><HR
476 
ALIGN="LEFT"
477 
WIDTH="100%"><TABLE
478 
SUMMARY="Footer navigation table"
479 
WIDTH="100%"
480 
BORDER="0"
481 
CELLPADDING="0"
482 
CELLSPACING="0"
483 
><TR
484 
><TD
485 
WIDTH="33%"
486 
ALIGN="left"
487 
VALIGN="top"
488 
><A
489 
HREF="compat-uitron-extended-sync-comm-functions.html"
490 
ACCESSKEY="P"
491 
>Prev</A
492 
></TD
493 
><TD
494 
WIDTH="34%"
495 
ALIGN="center"
496 
VALIGN="top"
497 
><A
498 
HREF="ecos-ref.html"
499 
ACCESSKEY="H"
500 
>Home</A
501 
></TD
502 
><TD
503 
WIDTH="33%"
504 
ALIGN="right"
505 
VALIGN="top"
506 
><A
507 
HREF="compat-uitron-memory-pool-mgmt-functions.html"
508 
ACCESSKEY="N"
509 
>Next</A
510 
></TD
511 
></TR
512 
><TR
513 
><TD
514 
WIDTH="33%"
515 
ALIGN="left"
516 
VALIGN="top"
517 
>Extended Synchronization and Communication Functions</TD
518 
><TD
519 
WIDTH="34%"
520 
ALIGN="center"
521 
VALIGN="top"
522 
><A
523 
HREF="compat-uitron-microitron-api.html"
524 
ACCESSKEY="U"
525 
>Up</A
526 
></TD
527 
><TD
528 
WIDTH="33%"
529 
ALIGN="right"
530 
VALIGN="top"
531 
>Memory pool Management Functions</TD
532 
></TR
533 
></TABLE
534 
></DIV
535 
></BODY
536 
></HTML
537 
>

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.