/*
* Copyright (c) 2014 Martin Decky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libc
* @{
*/
/** @file
*/
#include <ipc/irq.h>
#include <libc.h>
#include <stdlib.h>
#include <stddef.h>
#include <macros.h>
static irq_cmd_t default_cmds[] = {
{
.cmd = CMD_ACCEPT
}
};
static const irq_code_t default_ucode = {
0,
NULL,
ARRAY_SIZE(default_cmds),
default_cmds
};
/** Subscribe to IRQ notification.
*
* @param inr IRQ number.
* @param method Use this method for notifying me.
* @param ucode Top-half pseudocode handler.
*
* @param[out] out_handle IRQ capability handle returned by the kernel.
*
* @return Error code returned by the kernel.
*
*/
errno_t ipc_irq_subscribe(int inr, sysarg_t method, const irq_code_t *ucode,
cap_irq_handle_t *out_handle)
{
if (ucode == NULL)
ucode = &default_ucode;
return (errno_t) __SYSCALL4(SYS_IPC_IRQ_SUBSCRIBE, inr, method,
(sysarg_t) ucode, (sysarg_t) out_handle);
}
/** Unsubscribe from IRQ notification.
*
* @param cap IRQ capability handle.
*
* @return Value returned by the kernel.
*
*/
errno_t ipc_irq_unsubscribe(cap_irq_handle_t cap)
{
return (errno_t) __SYSCALL1(SYS_IPC_IRQ_UNSUBSCRIBE,
cap_handle_raw(cap));
}
/** @}
*/