mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-08-26 10:28:58 +00:00
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/*
|
|
Copyright (c) 2012, Philippe Retornaz
|
|
Copyright (c) 2012, EPFL STI IMT LSRO1 -- Mobots group
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
2. 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.
|
|
3. 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.
|
|
*/
|
|
|
|
#include "cc253x.h"
|
|
#include "port2.h"
|
|
|
|
struct cc253x_p2_handler *handlers = NULL;
|
|
|
|
void
|
|
cc253x_p2_register_handler(struct cc253x_p2_handler *h)
|
|
{
|
|
uint8_t flags;
|
|
|
|
if(!h) {
|
|
return;
|
|
}
|
|
|
|
cc253x_p2_irq_disable(flags);
|
|
|
|
h->next = handlers;
|
|
handlers = h;
|
|
|
|
cc253x_p2_irq_enable(flags);
|
|
}
|
|
|
|
void
|
|
cc253x_p2_unregister_handler(struct cc253x_p2_handler *remove)
|
|
{
|
|
uint8_t flags;
|
|
struct cc253x_p2_handler *h = handlers;
|
|
|
|
// Protect against dumb users
|
|
if(!h || !remove) {
|
|
return;
|
|
}
|
|
|
|
cc253x_p2_irq_disable(flags);
|
|
|
|
if(h == remove) {
|
|
// First element in the list
|
|
handlers = h->next;
|
|
} else {
|
|
while(h->next) {
|
|
if(h->next == remove) {
|
|
h->next = h->next->next;
|
|
break;
|
|
}
|
|
h = h->next;
|
|
}
|
|
}
|
|
|
|
cc253x_p2_irq_enable(flags);
|
|
}
|