source: mainline/uspace/lib/c/generic/irq.c@ 6d81e1e

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 6d81e1e was 8820544, checked in by Martin Decky <martin@…>, 11 years ago

support for kernel notification multiplexing in the async framework

  • rename SYS_EVENT_* and SYS_IRQ_* syscalls to unify the terminology
  • add SYS_IPC_EVENT_UNSUBSCRIBE
  • remove IRQ handler multiplexing from DDF, the generic mechanism replaces it (unfortunatelly the order of arguments used by interrupt_handler_t needs to be permutated to align with the async framework conventions)
  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 * Copyright (c) 2014 Martin Decky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libc
30 * @{
31 */
32/** @file
33 */
34
35#include <ipc/irq.h>
36#include <libc.h>
37
38/** Subscribe to IRQ notification.
39 *
40 * @param inr IRQ number.
41 * @param devno Device number of the device generating inr.
42 * @param method Use this method for notifying me.
43 * @param ucode Top-half pseudocode handler.
44 *
45 * @return Value returned by the kernel.
46 *
47 */
48int ipc_irq_subscribe(int inr, int devno, sysarg_t method,
49 const irq_code_t *ucode)
50{
51 return __SYSCALL4(SYS_IPC_IRQ_SUBSCRIBE, inr, devno, method,
52 (sysarg_t) ucode);
53}
54
55/** Unsubscribe from IRQ notification.
56 *
57 * @param inr IRQ number.
58 * @param devno Device number of the device generating inr.
59 *
60 * @return Value returned by the kernel.
61 *
62 */
63int ipc_irq_unsubscribe(int inr, int devno)
64{
65 return __SYSCALL2(SYS_IPC_IRQ_UNSUBSCRIBE, inr, devno);
66}
67
68/** @}
69 */
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