| 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 | #include <stdlib.h>
|
|---|
| 38 | #include <stddef.h>
|
|---|
| 39 | #include <macros.h>
|
|---|
| 40 |
|
|---|
| 41 | static irq_cmd_t default_cmds[] = {
|
|---|
| 42 | {
|
|---|
| 43 | .cmd = CMD_ACCEPT
|
|---|
| 44 | }
|
|---|
| 45 | };
|
|---|
| 46 |
|
|---|
| 47 | static const irq_code_t default_ucode = {
|
|---|
| 48 | 0,
|
|---|
| 49 | NULL,
|
|---|
| 50 | ARRAY_SIZE(default_cmds),
|
|---|
| 51 | default_cmds
|
|---|
| 52 | };
|
|---|
| 53 |
|
|---|
| 54 | /** Subscribe to IRQ notification.
|
|---|
| 55 | *
|
|---|
| 56 | * @param inr IRQ number.
|
|---|
| 57 | * @param method Use this method for notifying me.
|
|---|
| 58 | * @param ucode Top-half pseudocode handler.
|
|---|
| 59 | *
|
|---|
| 60 | * @return IRQ capability handle returned by the kernel.
|
|---|
| 61 | * @return Error code returned by the kernel.
|
|---|
| 62 | *
|
|---|
| 63 | */
|
|---|
| 64 | int ipc_irq_subscribe(int inr, sysarg_t method, const irq_code_t *ucode)
|
|---|
| 65 | {
|
|---|
| 66 | if (ucode == NULL)
|
|---|
| 67 | ucode = &default_ucode;
|
|---|
| 68 |
|
|---|
| 69 | return __SYSCALL3(SYS_IPC_IRQ_SUBSCRIBE, inr, method, (sysarg_t) ucode);
|
|---|
| 70 | }
|
|---|
| 71 |
|
|---|
| 72 | /** Unsubscribe from IRQ notification.
|
|---|
| 73 | *
|
|---|
| 74 | * @param cap IRQ capability handle.
|
|---|
| 75 | *
|
|---|
| 76 | * @return Value returned by the kernel.
|
|---|
| 77 | *
|
|---|
| 78 | */
|
|---|
| 79 | int ipc_irq_unsubscribe(int cap)
|
|---|
| 80 | {
|
|---|
| 81 | return __SYSCALL1(SYS_IPC_IRQ_UNSUBSCRIBE, cap);
|
|---|
| 82 | }
|
|---|
| 83 |
|
|---|
| 84 | /** @}
|
|---|
| 85 | */
|
|---|
